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mac80211: return if IBSS chandef can not be used
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
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
be29b99a
AK		 406/* policy for coalesce rule attributes */
407static const struct nla_policy
408nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
409 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
410 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
411 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
412};
413
e5497d76
JB		 414/* policy for GTK rekey offload attributes */
415static const struct nla_policy
416nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
417 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
418 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
419 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
420};
421
a1f1c21c
LC		 422static const struct nla_policy
423nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 424 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 425 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 426 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 427};
428
97990a06
JB		 429static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
430 struct netlink_callback *cb,
431 struct cfg80211_registered_device **rdev,
432 struct wireless_dev **wdev)
a043897a 433{
97990a06 434 int err;
a043897a 435
97990a06 436 rtnl_lock();
a043897a 437
97990a06
JB		 438 if (!cb->args[0]) {
439 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
440 nl80211_fam.attrbuf, nl80211_fam.maxattr,
441 nl80211_policy);
442 if (err)
443 goto out_unlock;
67748893 444
97990a06
JB		 445 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
446 nl80211_fam.attrbuf);
447 if (IS_ERR(*wdev)) {
448 err = PTR_ERR(*wdev);
449 goto out_unlock;
450 }
451 *rdev = wiphy_to_dev((*wdev)->wiphy);
452 cb->args[0] = (*rdev)->wiphy_idx;
453 cb->args[1] = (*wdev)->identifier;
454 } else {
455 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
456 struct wireless_dev *tmp;
67748893 457
97990a06
JB		 458 if (!wiphy) {
459 err = -ENODEV;
460 goto out_unlock;
461 }
462 *rdev = wiphy_to_dev(wiphy);
463 *wdev = NULL;
67748893 464
97990a06
JB		 465 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
466 if (tmp->identifier == cb->args[1]) {
467 *wdev = tmp;
468 break;
469 }
470 }
67748893 471
97990a06
JB		 472 if (!*wdev) {
473 err = -ENODEV;
474 goto out_unlock;
475 }
67748893
JB		 476 }
477
67748893 478 return 0;
97990a06 479 out_unlock:
67748893
JB		 480 rtnl_unlock();
481 return err;
482}
483
97990a06 484static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 485{
67748893
JB		 486 rtnl_unlock();
487}
488
f4a11bb0
JB		 489/* IE validation */
490static bool is_valid_ie_attr(const struct nlattr *attr)
491{
492 const u8 *pos;
493 int len;
494
495 if (!attr)
496 return true;
497
498 pos = nla_data(attr);
499 len = nla_len(attr);
500
501 while (len) {
502 u8 elemlen;
503
504 if (len < 2)
505 return false;
506 len -= 2;
507
508 elemlen = pos[1];
509 if (elemlen > len)
510 return false;
511
512 len -= elemlen;
513 pos += 2 + elemlen;
514 }
515
516 return true;
517}
518
55682965 519/* message building helper */
15e47304 520static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 521 int flags, u8 cmd)
522{
523 /* since there is no private header just add the generic one */
15e47304 524 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 525}
526
5dab3b8a 527static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 528 struct ieee80211_channel *chan,
529 bool large)
5dab3b8a 530{
9360ffd1
DM		 531 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
532 chan->center_freq))
533 goto nla_put_failure;
5dab3b8a 534
9360ffd1
DM		 535 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
536 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
537 goto nla_put_failure;
538 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
539 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
540 goto nla_put_failure;
541 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
542 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
543 goto nla_put_failure;
cdc89b97
JB		 544 if (chan->flags & IEEE80211_CHAN_RADAR) {
545 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
546 goto nla_put_failure;
547 if (large) {
548 u32 time;
549
550 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
551
552 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
553 chan->dfs_state))
554 goto nla_put_failure;
555 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
556 time))
557 goto nla_put_failure;
558 }
559 }
5dab3b8a 560
fe1abafd
JB		 561 if (large) {
562 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
563 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
564 goto nla_put_failure;
565 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
566 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
567 goto nla_put_failure;
568 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
569 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
570 goto nla_put_failure;
571 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
572 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
573 goto nla_put_failure;
574 }
575
9360ffd1
DM		 576 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
577 DBM_TO_MBM(chan->max_power)))
578 goto nla_put_failure;
5dab3b8a
LR		 579
580 return 0;
581
582 nla_put_failure:
583 return -ENOBUFS;
584}
585
55682965
JB		 586/* netlink command implementations */
587
b9454e83
JB		 588struct key_parse {
589 struct key_params p;
590 int idx;
e31b8213 591 int type;
b9454e83 592 bool def, defmgmt;
dbd2fd65 593 bool def_uni, def_multi;
b9454e83
JB		 594};
595
596static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
597{
598 struct nlattr *tb[NL80211_KEY_MAX + 1];
599 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
600 nl80211_key_policy);
601 if (err)
602 return err;
603
604 k->def = !!tb[NL80211_KEY_DEFAULT];
605 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
606
dbd2fd65
JB		 607 if (k->def) {
608 k->def_uni = true;
609 k->def_multi = true;
610 }
611 if (k->defmgmt)
612 k->def_multi = true;
613
b9454e83
JB		 614 if (tb[NL80211_KEY_IDX])
615 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
616
617 if (tb[NL80211_KEY_DATA]) {
618 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
619 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
620 }
621
622 if (tb[NL80211_KEY_SEQ]) {
623 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
624 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
625 }
626
627 if (tb[NL80211_KEY_CIPHER])
628 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
629
e31b8213
JB		 630 if (tb[NL80211_KEY_TYPE]) {
631 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
632 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
633 return -EINVAL;
634 }
635
dbd2fd65
JB		 636 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
637 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 638 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
639 tb[NL80211_KEY_DEFAULT_TYPES],
640 nl80211_key_default_policy);
dbd2fd65
JB		 641 if (err)
642 return err;
643
644 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
645 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
646 }
647
b9454e83
JB		 648 return 0;
649}
650
651static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
652{
653 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
654 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
655 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
656 }
657
658 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
659 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
660 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
661 }
662
663 if (info->attrs[NL80211_ATTR_KEY_IDX])
664 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
665
666 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
667 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
668
669 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
670 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
671
dbd2fd65
JB		 672 if (k->def) {
673 k->def_uni = true;
674 k->def_multi = true;
675 }
676 if (k->defmgmt)
677 k->def_multi = true;
678
e31b8213
JB		 679 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
680 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
681 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
682 return -EINVAL;
683 }
684
dbd2fd65
JB		 685 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
686 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
687 int err = nla_parse_nested(
688 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
689 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
690 nl80211_key_default_policy);
691 if (err)
692 return err;
693
694 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
695 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
696 }
697
b9454e83
JB		 698 return 0;
699}
700
701static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
702{
703 int err;
704
705 memset(k, 0, sizeof(*k));
706 k->idx = -1;
e31b8213 707 k->type = -1;
b9454e83
JB		 708
709 if (info->attrs[NL80211_ATTR_KEY])
710 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
711 else
712 err = nl80211_parse_key_old(info, k);
713
714 if (err)
715 return err;
716
717 if (k->def && k->defmgmt)
718 return -EINVAL;
719
dbd2fd65
JB		 720 if (k->defmgmt) {
721 if (k->def_uni || !k->def_multi)
722 return -EINVAL;
723 }
724
b9454e83
JB		 725 if (k->idx != -1) {
726 if (k->defmgmt) {
727 if (k->idx < 4 || k->idx > 5)
728 return -EINVAL;
729 } else if (k->def) {
730 if (k->idx < 0 || k->idx > 3)
731 return -EINVAL;
732 } else {
733 if (k->idx < 0 || k->idx > 5)
734 return -EINVAL;
735 }
736 }
737
738 return 0;
739}
740
fffd0934
JB		 741static struct cfg80211_cached_keys *
742nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 743 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 744{
745 struct key_parse parse;
746 struct nlattr *key;
747 struct cfg80211_cached_keys *result;
748 int rem, err, def = 0;
749
750 result = kzalloc(sizeof(*result), GFP_KERNEL);
751 if (!result)
752 return ERR_PTR(-ENOMEM);
753
754 result->def = -1;
755 result->defmgmt = -1;
756
757 nla_for_each_nested(key, keys, rem) {
758 memset(&parse, 0, sizeof(parse));
759 parse.idx = -1;
760
761 err = nl80211_parse_key_new(key, &parse);
762 if (err)
763 goto error;
764 err = -EINVAL;
765 if (!parse.p.key)
766 goto error;
767 if (parse.idx < 0 || parse.idx > 4)
768 goto error;
769 if (parse.def) {
770 if (def)
771 goto error;
772 def = 1;
773 result->def = parse.idx;
dbd2fd65
JB		 774 if (!parse.def_uni || !parse.def_multi)
775 goto error;
fffd0934
JB		 776 } else if (parse.defmgmt)
777 goto error;
778 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 779 parse.idx, false, NULL);
fffd0934
JB		 780 if (err)
781 goto error;
782 result->params[parse.idx].cipher = parse.p.cipher;
783 result->params[parse.idx].key_len = parse.p.key_len;
784 result->params[parse.idx].key = result->data[parse.idx];
785 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 786
787 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
788 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
789 if (no_ht)
790 *no_ht = true;
791 }
fffd0934
JB		 792 }
793
794 return result;
795 error:
796 kfree(result);
797 return ERR_PTR(err);
798}
799
800static int nl80211_key_allowed(struct wireless_dev *wdev)
801{
802 ASSERT_WDEV_LOCK(wdev);
803
fffd0934
JB		 804 switch (wdev->iftype) {
805 case NL80211_IFTYPE_AP:
806 case NL80211_IFTYPE_AP_VLAN:
074ac8df 807 case NL80211_IFTYPE_P2P_GO:
ff973af7 808 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 809 break;
810 case NL80211_IFTYPE_ADHOC:
fffd0934 811 case NL80211_IFTYPE_STATION:
074ac8df 812 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 813 if (!wdev->current_bss)
fffd0934
JB		 814 return -ENOLINK;
815 break;
816 default:
817 return -EINVAL;
818 }
819
820 return 0;
821}
822
7527a782
JB		 823static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
824{
825 struct nlattr *nl_modes = nla_nest_start(msg, attr);
826 int i;
827
828 if (!nl_modes)
829 goto nla_put_failure;
830
831 i = 0;
832 while (ifmodes) {
9360ffd1
DM		 833 if ((ifmodes & 1) && nla_put_flag(msg, i))
834 goto nla_put_failure;
7527a782
JB		 835 ifmodes >>= 1;
836 i++;
837 }
838
839 nla_nest_end(msg, nl_modes);
840 return 0;
841
842nla_put_failure:
843 return -ENOBUFS;
844}
845
846static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 847 struct sk_buff *msg,
848 bool large)
7527a782
JB		 849{
850 struct nlattr *nl_combis;
851 int i, j;
852
853 nl_combis = nla_nest_start(msg,
854 NL80211_ATTR_INTERFACE_COMBINATIONS);
855 if (!nl_combis)
856 goto nla_put_failure;
857
858 for (i = 0; i < wiphy->n_iface_combinations; i++) {
859 const struct ieee80211_iface_combination *c;
860 struct nlattr *nl_combi, *nl_limits;
861
862 c = &wiphy->iface_combinations[i];
863
864 nl_combi = nla_nest_start(msg, i + 1);
865 if (!nl_combi)
866 goto nla_put_failure;
867
868 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
869 if (!nl_limits)
870 goto nla_put_failure;
871
872 for (j = 0; j < c->n_limits; j++) {
873 struct nlattr *nl_limit;
874
875 nl_limit = nla_nest_start(msg, j + 1);
876 if (!nl_limit)
877 goto nla_put_failure;
9360ffd1
DM		 878 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
879 c->limits[j].max))
880 goto nla_put_failure;
7527a782
JB		 881 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
882 c->limits[j].types))
883 goto nla_put_failure;
884 nla_nest_end(msg, nl_limit);
885 }
886
887 nla_nest_end(msg, nl_limits);
888
9360ffd1
DM		 889 if (c->beacon_int_infra_match &&
890 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
891 goto nla_put_failure;
892 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
893 c->num_different_channels) ||
894 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
895 c->max_interfaces))
896 goto nla_put_failure;
cdc89b97
JB		 897 if (large &&
898 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
899 c->radar_detect_widths))
900 goto nla_put_failure;
7527a782
JB		 901
902 nla_nest_end(msg, nl_combi);
903 }
904
905 nla_nest_end(msg, nl_combis);
906
907 return 0;
908nla_put_failure:
909 return -ENOBUFS;
910}
911
3713b4e3 912#ifdef CONFIG_PM
b56cf720
JB		 913static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
914 struct sk_buff *msg)
915{
964dc9e2 916 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 917 struct nlattr *nl_tcp;
918
919 if (!tcp)
920 return 0;
921
922 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
923 if (!nl_tcp)
924 return -ENOBUFS;
925
926 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
927 tcp->data_payload_max))
928 return -ENOBUFS;
929
930 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
931 tcp->data_payload_max))
932 return -ENOBUFS;
933
934 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
935 return -ENOBUFS;
936
937 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
938 sizeof(*tcp->tok), tcp->tok))
939 return -ENOBUFS;
940
941 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
942 tcp->data_interval_max))
943 return -ENOBUFS;
944
945 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
946 tcp->wake_payload_max))
947 return -ENOBUFS;
948
949 nla_nest_end(msg, nl_tcp);
950 return 0;
951}
952
3713b4e3 953static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 954 struct cfg80211_registered_device *dev,
955 bool large)
55682965 956{
3713b4e3 957 struct nlattr *nl_wowlan;
55682965 958
964dc9e2 959 if (!dev->wiphy.wowlan)
3713b4e3 960 return 0;
55682965 961
3713b4e3
JB		 962 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
963 if (!nl_wowlan)
964 return -ENOBUFS;
9360ffd1 965
964dc9e2 966 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 967 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 968 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 969 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 970 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 971 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 972 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 973 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 974 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 975 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 976 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 977 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 978 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 979 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 980 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 981 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
982 return -ENOBUFS;
9360ffd1 983
964dc9e2 984 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 985 struct nl80211_pattern_support pat = {
964dc9e2
JB		 986 .max_patterns = dev->wiphy.wowlan->n_patterns,
987 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
988 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
989 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 990 };
9360ffd1 991
3713b4e3
JB		 992 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
993 sizeof(pat), &pat))
994 return -ENOBUFS;
995 }
9360ffd1 996
b56cf720
JB		 997 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
998 return -ENOBUFS;
999
3713b4e3 1000 nla_nest_end(msg, nl_wowlan);
9360ffd1 1001
3713b4e3
JB		 1002 return 0;
1003}
1004#endif
9360ffd1 1005
be29b99a
AK		 1006static int nl80211_send_coalesce(struct sk_buff *msg,
1007 struct cfg80211_registered_device *dev)
1008{
1009 struct nl80211_coalesce_rule_support rule;
1010
1011 if (!dev->wiphy.coalesce)
1012 return 0;
1013
1014 rule.max_rules = dev->wiphy.coalesce->n_rules;
1015 rule.max_delay = dev->wiphy.coalesce->max_delay;
1016 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1017 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1018 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1019 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1020
1021 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1022 return -ENOBUFS;
1023
1024 return 0;
1025}
1026
3713b4e3
JB		 1027static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1028 struct ieee80211_supported_band *sband)
1029{
1030 struct nlattr *nl_rates, *nl_rate;
1031 struct ieee80211_rate *rate;
1032 int i;
87bbbe22 1033
3713b4e3
JB		 1034 /* add HT info */
1035 if (sband->ht_cap.ht_supported &&
1036 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1037 sizeof(sband->ht_cap.mcs),
1038 &sband->ht_cap.mcs) ||
1039 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1040 sband->ht_cap.cap) ||
1041 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1042 sband->ht_cap.ampdu_factor) ||
1043 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1044 sband->ht_cap.ampdu_density)))
1045 return -ENOBUFS;
afe0cbf8 1046
3713b4e3
JB		 1047 /* add VHT info */
1048 if (sband->vht_cap.vht_supported &&
1049 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1050 sizeof(sband->vht_cap.vht_mcs),
1051 &sband->vht_cap.vht_mcs) ||
1052 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1053 sband->vht_cap.cap)))
1054 return -ENOBUFS;
f59ac048 1055
3713b4e3
JB		 1056 /* add bitrates */
1057 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1058 if (!nl_rates)
1059 return -ENOBUFS;
ee688b00 1060
3713b4e3
JB		 1061 for (i = 0; i < sband->n_bitrates; i++) {
1062 nl_rate = nla_nest_start(msg, i);
1063 if (!nl_rate)
1064 return -ENOBUFS;
ee688b00 1065
3713b4e3
JB		 1066 rate = &sband->bitrates[i];
1067 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1068 rate->bitrate))
1069 return -ENOBUFS;
1070 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1071 nla_put_flag(msg,
1072 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1073 return -ENOBUFS;
ee688b00 1074
3713b4e3
JB		 1075 nla_nest_end(msg, nl_rate);
1076 }
d51626df 1077
3713b4e3 1078 nla_nest_end(msg, nl_rates);
bf0c111e 1079
3713b4e3
JB		 1080 return 0;
1081}
ee688b00 1082
3713b4e3
JB		 1083static int
1084nl80211_send_mgmt_stypes(struct sk_buff *msg,
1085 const struct ieee80211_txrx_stypes *mgmt_stypes)
1086{
1087 u16 stypes;
1088 struct nlattr *nl_ftypes, *nl_ifs;
1089 enum nl80211_iftype ift;
1090 int i;
ee688b00 1091
3713b4e3
JB		 1092 if (!mgmt_stypes)
1093 return 0;
5dab3b8a 1094
3713b4e3
JB		 1095 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1096 if (!nl_ifs)
1097 return -ENOBUFS;
e2f367f2 1098
3713b4e3
JB		 1099 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1100 nl_ftypes = nla_nest_start(msg, ift);
1101 if (!nl_ftypes)
1102 return -ENOBUFS;
1103 i = 0;
1104 stypes = mgmt_stypes[ift].tx;
1105 while (stypes) {
1106 if ((stypes & 1) &&
1107 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1108 (i << 4) | IEEE80211_FTYPE_MGMT))
1109 return -ENOBUFS;
1110 stypes >>= 1;
1111 i++;
ee688b00 1112 }
3713b4e3
JB		 1113 nla_nest_end(msg, nl_ftypes);
1114 }
ee688b00 1115
3713b4e3 1116 nla_nest_end(msg, nl_ifs);
ee688b00 1117
3713b4e3
JB		 1118 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1119 if (!nl_ifs)
1120 return -ENOBUFS;
ee688b00 1121
3713b4e3
JB		 1122 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1123 nl_ftypes = nla_nest_start(msg, ift);
1124 if (!nl_ftypes)
1125 return -ENOBUFS;
1126 i = 0;
1127 stypes = mgmt_stypes[ift].rx;
1128 while (stypes) {
1129 if ((stypes & 1) &&
1130 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1131 (i << 4) | IEEE80211_FTYPE_MGMT))
1132 return -ENOBUFS;
1133 stypes >>= 1;
1134 i++;
1135 }
1136 nla_nest_end(msg, nl_ftypes);
1137 }
1138 nla_nest_end(msg, nl_ifs);
ee688b00 1139
3713b4e3
JB		 1140 return 0;
1141}
ee688b00 1142
86e8cf98
JB		 1143struct nl80211_dump_wiphy_state {
1144 s64 filter_wiphy;
1145 long start;
1146 long split_start, band_start, chan_start;
1147 bool split;
1148};
1149
3713b4e3
JB		 1150static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1151 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1152 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1153{
1154 void *hdr;
1155 struct nlattr *nl_bands, *nl_band;
1156 struct nlattr *nl_freqs, *nl_freq;
1157 struct nlattr *nl_cmds;
1158 enum ieee80211_band band;
1159 struct ieee80211_channel *chan;
1160 int i;
1161 const struct ieee80211_txrx_stypes *mgmt_stypes =
1162 dev->wiphy.mgmt_stypes;
fe1abafd 1163 u32 features;
ee688b00 1164
3713b4e3
JB		 1165 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1166 if (!hdr)
1167 return -ENOBUFS;
ee688b00 1168
86e8cf98
JB		 1169 if (WARN_ON(!state))
1170 return -EINVAL;
ee688b00 1171
3713b4e3
JB		 1172 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1173 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1174 wiphy_name(&dev->wiphy)) ||
1175 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1176 cfg80211_rdev_list_generation))
8fdc621d
JB		 1177 goto nla_put_failure;
1178
86e8cf98 1179 switch (state->split_start) {
3713b4e3
JB		 1180 case 0:
1181 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1182 dev->wiphy.retry_short) ||
1183 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1184 dev->wiphy.retry_long) ||
1185 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1186 dev->wiphy.frag_threshold) ||
1187 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1188 dev->wiphy.rts_threshold) ||
1189 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1190 dev->wiphy.coverage_class) ||
1191 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1192 dev->wiphy.max_scan_ssids) ||
1193 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1194 dev->wiphy.max_sched_scan_ssids) ||
1195 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1196 dev->wiphy.max_scan_ie_len) ||
1197 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1198 dev->wiphy.max_sched_scan_ie_len) ||
1199 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1200 dev->wiphy.max_match_sets))
9360ffd1 1201 goto nla_put_failure;
3713b4e3
JB		 1202
1203 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1204 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1205 goto nla_put_failure;
3713b4e3
JB		 1206 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1207 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1208 goto nla_put_failure;
1209 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1210 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1211 goto nla_put_failure;
1212 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1213 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1214 goto nla_put_failure;
1215 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1216 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1217 goto nla_put_failure;
1218 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1219 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1220 goto nla_put_failure;
2f301ab2
SW		 1221 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1222 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1223 goto nla_put_failure;
8fdc621d 1224
86e8cf98
JB		 1225 state->split_start++;
1226 if (state->split)
3713b4e3
JB		 1227 break;
1228 case 1:
1229 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1230 sizeof(u32) * dev->wiphy.n_cipher_suites,
1231 dev->wiphy.cipher_suites))
1232 goto nla_put_failure;
4745fc09 1233
3713b4e3
JB		 1234 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1235 dev->wiphy.max_num_pmkids))
1236 goto nla_put_failure;
b23aa676 1237
3713b4e3
JB		 1238 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1239 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1240 goto nla_put_failure;
b23aa676 1241
3713b4e3
JB		 1242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1243 dev->wiphy.available_antennas_tx) ||
1244 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1245 dev->wiphy.available_antennas_rx))
9360ffd1 1246 goto nla_put_failure;
b23aa676 1247
3713b4e3
JB		 1248 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1249 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1250 dev->wiphy.probe_resp_offload))
1251 goto nla_put_failure;
8fdc621d 1252
3713b4e3
JB		 1253 if ((dev->wiphy.available_antennas_tx ||
1254 dev->wiphy.available_antennas_rx) &&
1255 dev->ops->get_antenna) {
1256 u32 tx_ant = 0, rx_ant = 0;
1257 int res;
1258 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1259 if (!res) {
1260 if (nla_put_u32(msg,
1261 NL80211_ATTR_WIPHY_ANTENNA_TX,
1262 tx_ant) ||
1263 nla_put_u32(msg,
1264 NL80211_ATTR_WIPHY_ANTENNA_RX,
1265 rx_ant))
1266 goto nla_put_failure;
1267 }
1268 }
a293911d 1269
86e8cf98
JB		 1270 state->split_start++;
1271 if (state->split)
3713b4e3
JB		 1272 break;
1273 case 2:
1274 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1275 dev->wiphy.interface_modes))
1276 goto nla_put_failure;
86e8cf98
JB		 1277 state->split_start++;
1278 if (state->split)
3713b4e3
JB		 1279 break;
1280 case 3:
1281 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1282 if (!nl_bands)
1283 goto nla_put_failure;
f7ca38df 1284
86e8cf98
JB		 1285 for (band = state->band_start;
1286 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1287 struct ieee80211_supported_band *sband;
2e161f78 1288
3713b4e3 1289 sband = dev->wiphy.bands[band];
2e161f78 1290
3713b4e3
JB		 1291 if (!sband)
1292 continue;
1293
1294 nl_band = nla_nest_start(msg, band);
1295 if (!nl_band)
2e161f78 1296 goto nla_put_failure;
3713b4e3 1297
86e8cf98 1298 switch (state->chan_start) {
3713b4e3
JB		 1299 case 0:
1300 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1301 goto nla_put_failure;
86e8cf98
JB		 1302 state->chan_start++;
1303 if (state->split)
3713b4e3
JB		 1304 break;
1305 default:
1306 /* add frequencies */
1307 nl_freqs = nla_nest_start(
1308 msg, NL80211_BAND_ATTR_FREQS);
1309 if (!nl_freqs)
1310 goto nla_put_failure;
1311
86e8cf98 1312 for (i = state->chan_start - 1;
3713b4e3
JB		 1313 i < sband->n_channels;
1314 i++) {
1315 nl_freq = nla_nest_start(msg, i);
1316 if (!nl_freq)
1317 goto nla_put_failure;
1318
1319 chan = &sband->channels[i];
1320
86e8cf98
JB		 1321 if (nl80211_msg_put_channel(
1322 msg, chan,
1323 state->split))
3713b4e3
JB		 1324 goto nla_put_failure;
1325
1326 nla_nest_end(msg, nl_freq);
86e8cf98 1327 if (state->split)
3713b4e3
JB		 1328 break;
1329 }
1330 if (i < sband->n_channels)
86e8cf98 1331 state->chan_start = i + 2;
3713b4e3 1332 else
86e8cf98 1333 state->chan_start = 0;
3713b4e3
JB		 1334 nla_nest_end(msg, nl_freqs);
1335 }
1336
1337 nla_nest_end(msg, nl_band);
1338
86e8cf98 1339 if (state->split) {
3713b4e3 1340 /* start again here */
86e8cf98 1341 if (state->chan_start)
3713b4e3
JB		 1342 band--;
1343 break;
2e161f78 1344 }
2e161f78 1345 }
3713b4e3 1346 nla_nest_end(msg, nl_bands);
2e161f78 1347
3713b4e3 1348 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1349 state->band_start = band + 1;
3713b4e3 1350 else
86e8cf98 1351 state->band_start = 0;
74b70a4e 1352
3713b4e3 1353 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1354 if (state->band_start == 0 && state->chan_start == 0)
1355 state->split_start++;
1356 if (state->split)
3713b4e3
JB		 1357 break;
1358 case 4:
1359 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1360 if (!nl_cmds)
2e161f78
JB		 1361 goto nla_put_failure;
1362
3713b4e3
JB		 1363 i = 0;
1364#define CMD(op, n) \
1365 do { \
1366 if (dev->ops->op) { \
1367 i++; \
1368 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1369 goto nla_put_failure; \
1370 } \
1371 } while (0)
1372
1373 CMD(add_virtual_intf, NEW_INTERFACE);
1374 CMD(change_virtual_intf, SET_INTERFACE);
1375 CMD(add_key, NEW_KEY);
1376 CMD(start_ap, START_AP);
1377 CMD(add_station, NEW_STATION);
1378 CMD(add_mpath, NEW_MPATH);
1379 CMD(update_mesh_config, SET_MESH_CONFIG);
1380 CMD(change_bss, SET_BSS);
1381 CMD(auth, AUTHENTICATE);
1382 CMD(assoc, ASSOCIATE);
1383 CMD(deauth, DEAUTHENTICATE);
1384 CMD(disassoc, DISASSOCIATE);
1385 CMD(join_ibss, JOIN_IBSS);
1386 CMD(join_mesh, JOIN_MESH);
1387 CMD(set_pmksa, SET_PMKSA);
1388 CMD(del_pmksa, DEL_PMKSA);
1389 CMD(flush_pmksa, FLUSH_PMKSA);
1390 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1391 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1392 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1393 CMD(mgmt_tx, FRAME);
1394 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1395 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1396 i++;
1397 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1398 goto nla_put_failure;
2e161f78 1399 }
3713b4e3
JB		 1400 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1401 dev->ops->join_mesh) {
1402 i++;
1403 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1404 goto nla_put_failure;
1405 }
1406 CMD(set_wds_peer, SET_WDS_PEER);
1407 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1408 CMD(tdls_mgmt, TDLS_MGMT);
1409 CMD(tdls_oper, TDLS_OPER);
1410 }
1411 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1412 CMD(sched_scan_start, START_SCHED_SCAN);
1413 CMD(probe_client, PROBE_CLIENT);
1414 CMD(set_noack_map, SET_NOACK_MAP);
1415 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1416 i++;
1417 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1418 goto nla_put_failure;
1419 }
1420 CMD(start_p2p_device, START_P2P_DEVICE);
1421 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1422 if (state->split) {
5de17984
AS		 1423 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1424 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1425 }
2e161f78 1426
3713b4e3
JB		 1427#ifdef CONFIG_NL80211_TESTMODE
1428 CMD(testmode_cmd, TESTMODE);
1429#endif
ff1b6e69 1430
3713b4e3 1431#undef CMD
ff1b6e69 1432
3713b4e3
JB		 1433 if (dev->ops->connect || dev->ops->auth) {
1434 i++;
1435 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1436 goto nla_put_failure;
ff1b6e69
JB		 1437 }
1438
3713b4e3
JB		 1439 if (dev->ops->disconnect || dev->ops->deauth) {
1440 i++;
1441 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1442 goto nla_put_failure;
1443 }
1444
1445 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1446 state->split_start++;
1447 if (state->split)
3713b4e3
JB		 1448 break;
1449 case 5:
1450 if (dev->ops->remain_on_channel &&
1451 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1452 nla_put_u32(msg,
1453 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1454 dev->wiphy.max_remain_on_channel_duration))
1455 goto nla_put_failure;
1456
1457 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1458 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1459 goto nla_put_failure;
1460
1461 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1462 goto nla_put_failure;
86e8cf98
JB		 1463 state->split_start++;
1464 if (state->split)
3713b4e3
JB		 1465 break;
1466 case 6:
1467#ifdef CONFIG_PM
86e8cf98 1468 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1469 goto nla_put_failure;
86e8cf98
JB		 1470 state->split_start++;
1471 if (state->split)
3713b4e3
JB		 1472 break;
1473#else
86e8cf98 1474 state->split_start++;
dfb89c56 1475#endif
3713b4e3
JB		 1476 case 7:
1477 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1478 dev->wiphy.software_iftypes))
1479 goto nla_put_failure;
ff1b6e69 1480
86e8cf98
JB		 1481 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1482 state->split))
3713b4e3 1483 goto nla_put_failure;
7527a782 1484
86e8cf98
JB		 1485 state->split_start++;
1486 if (state->split)
3713b4e3
JB		 1487 break;
1488 case 8:
1489 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1490 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1491 dev->wiphy.ap_sme_capa))
1492 goto nla_put_failure;
7527a782 1493
fe1abafd
JB		 1494 features = dev->wiphy.features;
1495 /*
1496 * We can only add the per-channel limit information if the
1497 * dump is split, otherwise it makes it too big. Therefore
1498 * only advertise it in that case.
1499 */
86e8cf98 1500 if (state->split)
fe1abafd
JB		 1501 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1502 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1503 goto nla_put_failure;
562a7480 1504
3713b4e3
JB		 1505 if (dev->wiphy.ht_capa_mod_mask &&
1506 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1507 sizeof(*dev->wiphy.ht_capa_mod_mask),
1508 dev->wiphy.ht_capa_mod_mask))
1509 goto nla_put_failure;
1f074bd8 1510
3713b4e3
JB		 1511 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1512 dev->wiphy.max_acl_mac_addrs &&
1513 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1514 dev->wiphy.max_acl_mac_addrs))
1515 goto nla_put_failure;
7e7c8926 1516
3713b4e3
JB		 1517 /*
1518 * Any information below this point is only available to
1519 * applications that can deal with it being split. This
1520 * helps ensure that newly added capabilities don't break
1521 * older tools by overrunning their buffers.
1522 *
1523 * We still increment split_start so that in the split
1524 * case we'll continue with more data in the next round,
1525 * but break unconditionally so unsplit data stops here.
1526 */
86e8cf98 1527 state->split_start++;
3713b4e3
JB		 1528 break;
1529 case 9:
fe1abafd
JB		 1530 if (dev->wiphy.extended_capabilities &&
1531 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1532 dev->wiphy.extended_capabilities_len,
1533 dev->wiphy.extended_capabilities) ||
1534 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1535 dev->wiphy.extended_capabilities_len,
1536 dev->wiphy.extended_capabilities_mask)))
1537 goto nla_put_failure;
a50df0c4 1538
ee2aca34
JB		 1539 if (dev->wiphy.vht_capa_mod_mask &&
1540 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1541 sizeof(*dev->wiphy.vht_capa_mod_mask),
1542 dev->wiphy.vht_capa_mod_mask))
1543 goto nla_put_failure;
1544
be29b99a
AK		 1545 state->split_start++;
1546 break;
1547 case 10:
1548 if (nl80211_send_coalesce(msg, dev))
1549 goto nla_put_failure;
1550
3713b4e3 1551 /* done */
86e8cf98 1552 state->split_start = 0;
3713b4e3
JB		 1553 break;
1554 }
55682965
JB		 1555 return genlmsg_end(msg, hdr);
1556
1557 nla_put_failure:
bc3ed28c
TG		 1558 genlmsg_cancel(msg, hdr);
1559 return -EMSGSIZE;
55682965
JB		 1560}
1561
86e8cf98
JB		 1562static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1563 struct netlink_callback *cb,
1564 struct nl80211_dump_wiphy_state *state)
1565{
1566 struct nlattr **tb = nl80211_fam.attrbuf;
1567 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1568 tb, nl80211_fam.maxattr, nl80211_policy);
1569 /* ignore parse errors for backward compatibility */
1570 if (ret)
1571 return 0;
1572
1573 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1574 if (tb[NL80211_ATTR_WIPHY])
1575 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1576 if (tb[NL80211_ATTR_WDEV])
1577 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1578 if (tb[NL80211_ATTR_IFINDEX]) {
1579 struct net_device *netdev;
1580 struct cfg80211_registered_device *rdev;
1581 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1582
1583 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1584 if (!netdev)
1585 return -ENODEV;
1586 if (netdev->ieee80211_ptr) {
1587 rdev = wiphy_to_dev(
1588 netdev->ieee80211_ptr->wiphy);
1589 state->filter_wiphy = rdev->wiphy_idx;
1590 }
1591 dev_put(netdev);
1592 }
1593
1594 return 0;
1595}
1596
55682965
JB		 1597static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1598{
645e77de 1599 int idx = 0, ret;
86e8cf98 1600 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1601 struct cfg80211_registered_device *dev;
3a5a423b 1602
5fe231e8 1603 rtnl_lock();
86e8cf98
JB		 1604 if (!state) {
1605 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1606 if (!state) {
1607 rtnl_unlock();
86e8cf98 1608 return -ENOMEM;
3713b4e3 1609 }
86e8cf98
JB		 1610 state->filter_wiphy = -1;
1611 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1612 if (ret) {
1613 kfree(state);
1614 rtnl_unlock();
1615 return ret;
3713b4e3 1616 }
86e8cf98 1617 cb->args[0] = (long)state;
3713b4e3
JB		 1618 }
1619
79c97e97 1620 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1621 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1622 continue;
86e8cf98 1623 if (++idx <= state->start)
55682965 1624 continue;
86e8cf98
JB		 1625 if (state->filter_wiphy != -1 &&
1626 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1627 continue;
1628 /* attempt to fit multiple wiphy data chunks into the skb */
1629 do {
1630 ret = nl80211_send_wiphy(dev, skb,
1631 NETLINK_CB(cb->skb).portid,
1632 cb->nlh->nlmsg_seq,
86e8cf98 1633 NLM_F_MULTI, state);
3713b4e3
JB		 1634 if (ret < 0) {
1635 /*
1636 * If sending the wiphy data didn't fit (ENOBUFS
1637 * or EMSGSIZE returned), this SKB is still
1638 * empty (so it's not too big because another
1639 * wiphy dataset is already in the skb) and
1640 * we've not tried to adjust the dump allocation
1641 * yet ... then adjust the alloc size to be
1642 * bigger, and return 1 but with the empty skb.
1643 * This results in an empty message being RX'ed
1644 * in userspace, but that is ignored.
1645 *
1646 * We can then retry with the larger buffer.
1647 */
1648 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1649 !skb->len &&
1650 cb->min_dump_alloc < 4096) {
1651 cb->min_dump_alloc = 4096;
d98cae64 1652 rtnl_unlock();
3713b4e3
JB		 1653 return 1;
1654 }
1655 idx--;
1656 break;
645e77de 1657 }
86e8cf98 1658 } while (state->split_start > 0);
3713b4e3 1659 break;
55682965 1660 }
5fe231e8 1661 rtnl_unlock();
55682965 1662
86e8cf98 1663 state->start = idx;
55682965
JB		 1664
1665 return skb->len;
1666}
1667
86e8cf98
JB		 1668static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1669{
1670 kfree((void *)cb->args[0]);
1671 return 0;
1672}
1673
55682965
JB		 1674static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1675{
1676 struct sk_buff *msg;
4c476991 1677 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1678 struct nl80211_dump_wiphy_state state = {};
55682965 1679
645e77de 1680 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1681 if (!msg)
4c476991 1682 return -ENOMEM;
55682965 1683
3713b4e3 1684 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1685 &state) < 0) {
4c476991
JB		 1686 nlmsg_free(msg);
1687 return -ENOBUFS;
1688 }
55682965 1689
134e6375 1690 return genlmsg_reply(msg, info);
55682965
JB		 1691}
1692
31888487
JM		 1693static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1694 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1695 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1696 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1697 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1698 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1699};
1700
1701static int parse_txq_params(struct nlattr *tb[],
1702 struct ieee80211_txq_params *txq_params)
1703{
a3304b0a 1704 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1705 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1706 !tb[NL80211_TXQ_ATTR_AIFS])
1707 return -EINVAL;
1708
a3304b0a 1709 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1710 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1711 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1712 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1713 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1714
a3304b0a
JB		 1715 if (txq_params->ac >= NL80211_NUM_ACS)
1716 return -EINVAL;
1717
31888487
JM		 1718 return 0;
1719}
1720
f444de05
JB		 1721static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1722{
1723 /*
cc1d2806
JB		 1724 * You can only set the channel explicitly for WDS interfaces,
1725 * all others have their channel managed via their respective
1726 * "establish a connection" command (connect, join, ...)
1727 *
1728 * For AP/GO and mesh mode, the channel can be set with the
1729 * channel userspace API, but is only stored and passed to the
1730 * low-level driver when the AP starts or the mesh is joined.
1731 * This is for backward compatibility, userspace can also give
1732 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1733 *
1734 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1735 * whatever else is going on, so they have their own special
1736 * operation to set the monitor channel if possible.
f444de05
JB		 1737 */
1738 return !wdev ||
1739 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1740 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1741 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1742 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1743}
1744
683b6d3b
JB		 1745static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1746 struct genl_info *info,
1747 struct cfg80211_chan_def *chandef)
1748{
dbeca2ea 1749 u32 control_freq;
683b6d3b
JB		 1750
1751 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1752 return -EINVAL;
1753
1754 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1755
1756 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1757 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1758 chandef->center_freq1 = control_freq;
1759 chandef->center_freq2 = 0;
683b6d3b
JB		 1760
1761 /* Primary channel not allowed */
1762 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1763 return -EINVAL;
1764
3d9d1d66
JB		 1765 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1766 enum nl80211_channel_type chantype;
1767
1768 chantype = nla_get_u32(
1769 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1770
1771 switch (chantype) {
1772 case NL80211_CHAN_NO_HT:
1773 case NL80211_CHAN_HT20:
1774 case NL80211_CHAN_HT40PLUS:
1775 case NL80211_CHAN_HT40MINUS:
1776 cfg80211_chandef_create(chandef, chandef->chan,
1777 chantype);
1778 break;
1779 default:
1780 return -EINVAL;
1781 }
1782 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1783 chandef->width =
1784 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1785 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1786 chandef->center_freq1 =
1787 nla_get_u32(
1788 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1789 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1790 chandef->center_freq2 =
1791 nla_get_u32(
1792 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1793 }
1794
9f5e8f6e 1795 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1796 return -EINVAL;
1797
9f5e8f6e
JB		 1798 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1799 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1800 return -EINVAL;
1801
2f301ab2
SW		 1802 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1803 chandef->width == NL80211_CHAN_WIDTH_10) &&
1804 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1805 return -EINVAL;
1806
683b6d3b
JB		 1807 return 0;
1808}
1809
f444de05
JB		 1810static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1811 struct wireless_dev *wdev,
1812 struct genl_info *info)
1813{
683b6d3b 1814 struct cfg80211_chan_def chandef;
f444de05 1815 int result;
e8c9bd5b
JB		 1816 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1817
1818 if (wdev)
1819 iftype = wdev->iftype;
f444de05 1820
f444de05
JB		 1821 if (!nl80211_can_set_dev_channel(wdev))
1822 return -EOPNOTSUPP;
1823
683b6d3b
JB		 1824 result = nl80211_parse_chandef(rdev, info, &chandef);
1825 if (result)
1826 return result;
f444de05 1827
e8c9bd5b 1828 switch (iftype) {
aa430da4
JB		 1829 case NL80211_IFTYPE_AP:
1830 case NL80211_IFTYPE_P2P_GO:
1831 if (wdev->beacon_interval) {
1832 result = -EBUSY;
1833 break;
1834 }
683b6d3b 1835 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1836 result = -EINVAL;
1837 break;
1838 }
683b6d3b 1839 wdev->preset_chandef = chandef;
aa430da4
JB		 1840 result = 0;
1841 break;
cc1d2806 1842 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1843 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1844 break;
e8c9bd5b 1845 case NL80211_IFTYPE_MONITOR:
683b6d3b 1846 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1847 break;
aa430da4 1848 default:
e8c9bd5b 1849 result = -EINVAL;
f444de05 1850 }
f444de05
JB		 1851
1852 return result;
1853}
1854
1855static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1856{
4c476991
JB		 1857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1858 struct net_device *netdev = info->user_ptr[1];
f444de05 1859
4c476991 1860 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1861}
1862
e8347eba
BJ		 1863static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1864{
43b19952
JB		 1865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1866 struct net_device *dev = info->user_ptr[1];
1867 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1868 const u8 *bssid;
e8347eba
BJ		 1869
1870 if (!info->attrs[NL80211_ATTR_MAC])
1871 return -EINVAL;
1872
43b19952
JB		 1873 if (netif_running(dev))
1874 return -EBUSY;
e8347eba 1875
43b19952
JB		 1876 if (!rdev->ops->set_wds_peer)
1877 return -EOPNOTSUPP;
e8347eba 1878
43b19952
JB		 1879 if (wdev->iftype != NL80211_IFTYPE_WDS)
1880 return -EOPNOTSUPP;
e8347eba
BJ		 1881
1882 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1883 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1884}
1885
1886
55682965
JB		 1887static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1888{
1889 struct cfg80211_registered_device *rdev;
f444de05
JB		 1890 struct net_device *netdev = NULL;
1891 struct wireless_dev *wdev;
a1e567c8 1892 int result = 0, rem_txq_params = 0;
31888487 1893 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1894 u32 changed;
1895 u8 retry_short = 0, retry_long = 0;
1896 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1897 u8 coverage_class = 0;
55682965 1898
5fe231e8
JB		 1899 ASSERT_RTNL();
1900
f444de05
JB		 1901 /*
1902 * Try to find the wiphy and netdev. Normally this
1903 * function shouldn't need the netdev, but this is
1904 * done for backward compatibility -- previously
1905 * setting the channel was done per wiphy, but now
1906 * it is per netdev. Previous userland like hostapd
1907 * also passed a netdev to set_wiphy, so that it is
1908 * possible to let that go to the right netdev!
1909 */
4bbf4d56 1910
f444de05
JB		 1911 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1912 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1913
1914 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1915 if (netdev && netdev->ieee80211_ptr)
f444de05 1916 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1917 else
f444de05 1918 netdev = NULL;
4bbf4d56
JB		 1919 }
1920
f444de05 1921 if (!netdev) {
878d9ec7
JB		 1922 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1923 info->attrs);
5fe231e8 1924 if (IS_ERR(rdev))
4c476991 1925 return PTR_ERR(rdev);
f444de05
JB		 1926 wdev = NULL;
1927 netdev = NULL;
1928 result = 0;
71fe96bf 1929 } else
f444de05 1930 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1931
1932 /*
1933 * end workaround code, by now the rdev is available
1934 * and locked, and wdev may or may not be NULL.
1935 */
4bbf4d56
JB		 1936
1937 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1938 result = cfg80211_dev_rename(
1939 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1940
4bbf4d56
JB		 1941 if (result)
1942 goto bad_res;
31888487
JM		 1943
1944 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1945 struct ieee80211_txq_params txq_params;
1946 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1947
1948 if (!rdev->ops->set_txq_params) {
1949 result = -EOPNOTSUPP;
1950 goto bad_res;
1951 }
1952
f70f01c2
EP		 1953 if (!netdev) {
1954 result = -EINVAL;
1955 goto bad_res;
1956 }
1957
133a3ff2
JB		 1958 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1959 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1960 result = -EINVAL;
1961 goto bad_res;
1962 }
1963
2b5f8b0b
JB		 1964 if (!netif_running(netdev)) {
1965 result = -ENETDOWN;
1966 goto bad_res;
1967 }
1968
31888487
JM		 1969 nla_for_each_nested(nl_txq_params,
1970 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1971 rem_txq_params) {
1972 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1973 nla_data(nl_txq_params),
1974 nla_len(nl_txq_params),
1975 txq_params_policy);
1976 result = parse_txq_params(tb, &txq_params);
1977 if (result)
1978 goto bad_res;
1979
e35e4d28
HG		 1980 result = rdev_set_txq_params(rdev, netdev,
1981 &txq_params);
31888487
JM		 1982 if (result)
1983 goto bad_res;
1984 }
1985 }
55682965 1986
72bdcf34 1987 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1988 result = __nl80211_set_channel(rdev,
1989 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1990 info);
72bdcf34
JM		 1991 if (result)
1992 goto bad_res;
1993 }
1994
98d2ff8b 1995 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1996 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1997 enum nl80211_tx_power_setting type;
1998 int idx, mbm = 0;
1999
c8442118
JB		 2000 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2001 txp_wdev = NULL;
2002
98d2ff8b 2003 if (!rdev->ops->set_tx_power) {
60ea385f 2004 result = -EOPNOTSUPP;
98d2ff8b
JO		 2005 goto bad_res;
2006 }
2007
2008 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2009 type = nla_get_u32(info->attrs[idx]);
2010
2011 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2012 (type != NL80211_TX_POWER_AUTOMATIC)) {
2013 result = -EINVAL;
2014 goto bad_res;
2015 }
2016
2017 if (type != NL80211_TX_POWER_AUTOMATIC) {
2018 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2019 mbm = nla_get_u32(info->attrs[idx]);
2020 }
2021
c8442118 2022 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 2023 if (result)
2024 goto bad_res;
2025 }
2026
afe0cbf8
BR		 2027 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2028 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2029 u32 tx_ant, rx_ant;
7f531e03
BR		 2030 if ((!rdev->wiphy.available_antennas_tx &&
2031 !rdev->wiphy.available_antennas_rx) ||
2032 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2033 result = -EOPNOTSUPP;
2034 goto bad_res;
2035 }
2036
2037 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2038 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2039
a7ffac95 2040 /* reject antenna configurations which don't match the
7f531e03
BR		 2041 * available antenna masks, except for the "all" mask */
2042 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2043 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2044 result = -EINVAL;
2045 goto bad_res;
2046 }
2047
7f531e03
BR		 2048 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2049 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2050
e35e4d28 2051 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2052 if (result)
2053 goto bad_res;
2054 }
2055
b9a5f8ca
JM		 2056 changed = 0;
2057
2058 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2059 retry_short = nla_get_u8(
2060 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2061 if (retry_short == 0) {
2062 result = -EINVAL;
2063 goto bad_res;
2064 }
2065 changed |= WIPHY_PARAM_RETRY_SHORT;
2066 }
2067
2068 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2069 retry_long = nla_get_u8(
2070 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2071 if (retry_long == 0) {
2072 result = -EINVAL;
2073 goto bad_res;
2074 }
2075 changed |= WIPHY_PARAM_RETRY_LONG;
2076 }
2077
2078 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2079 frag_threshold = nla_get_u32(
2080 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2081 if (frag_threshold < 256) {
2082 result = -EINVAL;
2083 goto bad_res;
2084 }
2085 if (frag_threshold != (u32) -1) {
2086 /*
2087 * Fragments (apart from the last one) are required to
2088 * have even length. Make the fragmentation code
2089 * simpler by stripping LSB should someone try to use
2090 * odd threshold value.
2091 */
2092 frag_threshold &= ~0x1;
2093 }
2094 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2095 }
2096
2097 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2098 rts_threshold = nla_get_u32(
2099 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2100 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2101 }
2102
81077e82
LT		 2103 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2104 coverage_class = nla_get_u8(
2105 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2106 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2107 }
2108
b9a5f8ca
JM		 2109 if (changed) {
2110 u8 old_retry_short, old_retry_long;
2111 u32 old_frag_threshold, old_rts_threshold;
81077e82 2112 u8 old_coverage_class;
b9a5f8ca
JM		 2113
2114 if (!rdev->ops->set_wiphy_params) {
2115 result = -EOPNOTSUPP;
2116 goto bad_res;
2117 }
2118
2119 old_retry_short = rdev->wiphy.retry_short;
2120 old_retry_long = rdev->wiphy.retry_long;
2121 old_frag_threshold = rdev->wiphy.frag_threshold;
2122 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2123 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2124
2125 if (changed & WIPHY_PARAM_RETRY_SHORT)
2126 rdev->wiphy.retry_short = retry_short;
2127 if (changed & WIPHY_PARAM_RETRY_LONG)
2128 rdev->wiphy.retry_long = retry_long;
2129 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2130 rdev->wiphy.frag_threshold = frag_threshold;
2131 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2132 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2133 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2134 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2135
e35e4d28 2136 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2137 if (result) {
2138 rdev->wiphy.retry_short = old_retry_short;
2139 rdev->wiphy.retry_long = old_retry_long;
2140 rdev->wiphy.frag_threshold = old_frag_threshold;
2141 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2142 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2143 }
2144 }
72bdcf34 2145
306d6112 2146 bad_res:
f444de05
JB		 2147 if (netdev)
2148 dev_put(netdev);
55682965
JB		 2149 return result;
2150}
2151
71bbc994
JB		 2152static inline u64 wdev_id(struct wireless_dev *wdev)
2153{
2154 return (u64)wdev->identifier |
2155 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2156}
55682965 2157
683b6d3b
JB		 2158static int nl80211_send_chandef(struct sk_buff *msg,
2159 struct cfg80211_chan_def *chandef)
2160{
9f5e8f6e 2161 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2162
683b6d3b
JB		 2163 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2164 chandef->chan->center_freq))
2165 return -ENOBUFS;
3d9d1d66
JB		 2166 switch (chandef->width) {
2167 case NL80211_CHAN_WIDTH_20_NOHT:
2168 case NL80211_CHAN_WIDTH_20:
2169 case NL80211_CHAN_WIDTH_40:
2170 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2171 cfg80211_get_chandef_type(chandef)))
2172 return -ENOBUFS;
2173 break;
2174 default:
2175 break;
2176 }
2177 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2178 return -ENOBUFS;
2179 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2180 return -ENOBUFS;
2181 if (chandef->center_freq2 &&
2182 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2183 return -ENOBUFS;
2184 return 0;
2185}
2186
15e47304 2187static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2188 struct cfg80211_registered_device *rdev,
72fb2abc 2189 struct wireless_dev *wdev)
55682965 2190{
72fb2abc 2191 struct net_device *dev = wdev->netdev;
55682965
JB		 2192 void *hdr;
2193
15e47304 2194 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2195 if (!hdr)
2196 return -1;
2197
72fb2abc
JB		 2198 if (dev &&
2199 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2200 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2201 goto nla_put_failure;
2202
2203 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2204 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2205 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2206 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2207 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2208 rdev->devlist_generation ^
2209 (cfg80211_rdev_list_generation << 2)))
2210 goto nla_put_failure;
f5ea9120 2211
5b7ccaf3 2212 if (rdev->ops->get_channel) {
683b6d3b
JB		 2213 int ret;
2214 struct cfg80211_chan_def chandef;
2215
2216 ret = rdev_get_channel(rdev, wdev, &chandef);
2217 if (ret == 0) {
2218 if (nl80211_send_chandef(msg, &chandef))
2219 goto nla_put_failure;
2220 }
d91df0e3
PF		 2221 }
2222
b84e7a05
AQ		 2223 if (wdev->ssid_len) {
2224 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2225 goto nla_put_failure;
2226 }
2227
55682965
JB		 2228 return genlmsg_end(msg, hdr);
2229
2230 nla_put_failure:
bc3ed28c
TG		 2231 genlmsg_cancel(msg, hdr);
2232 return -EMSGSIZE;
55682965
JB		 2233}
2234
2235static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2236{
2237 int wp_idx = 0;
2238 int if_idx = 0;
2239 int wp_start = cb->args[0];
2240 int if_start = cb->args[1];
f5ea9120 2241 struct cfg80211_registered_device *rdev;
55682965
JB		 2242 struct wireless_dev *wdev;
2243
5fe231e8 2244 rtnl_lock();
f5ea9120
JB		 2245 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2246 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2247 continue;
bba95fef
JB		 2248 if (wp_idx < wp_start) {
2249 wp_idx++;
55682965 2250 continue;
bba95fef 2251 }
55682965
JB		 2252 if_idx = 0;
2253
89a54e48 2254 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2255 if (if_idx < if_start) {
2256 if_idx++;
55682965 2257 continue;
bba95fef 2258 }
15e47304 2259 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2260 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2261 rdev, wdev) < 0) {
bba95fef
JB		 2262 goto out;
2263 }
2264 if_idx++;
55682965 2265 }
bba95fef
JB		 2266
2267 wp_idx++;
55682965 2268 }
bba95fef 2269 out:
5fe231e8 2270 rtnl_unlock();
55682965
JB		 2271
2272 cb->args[0] = wp_idx;
2273 cb->args[1] = if_idx;
2274
2275 return skb->len;
2276}
2277
2278static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2279{
2280 struct sk_buff *msg;
4c476991 2281 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2282 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2283
fd2120ca 2284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2285 if (!msg)
4c476991 2286 return -ENOMEM;
55682965 2287
15e47304 2288 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2289 dev, wdev) < 0) {
4c476991
JB		 2290 nlmsg_free(msg);
2291 return -ENOBUFS;
2292 }
55682965 2293
134e6375 2294 return genlmsg_reply(msg, info);
55682965
JB		 2295}
2296
66f7ac50
MW		 2297static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2298 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2299 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2300 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2301 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2302 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2303 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2304};
2305
2306static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2307{
2308 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2309 int flag;
2310
2311 *mntrflags = 0;
2312
2313 if (!nla)
2314 return -EINVAL;
2315
2316 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2317 nla, mntr_flags_policy))
2318 return -EINVAL;
2319
2320 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2321 if (flags[flag])
2322 *mntrflags |= (1<<flag);
2323
2324 return 0;
2325}
2326
9bc383de 2327static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2328 struct net_device *netdev, u8 use_4addr,
2329 enum nl80211_iftype iftype)
9bc383de 2330{
ad4bb6f8 2331 if (!use_4addr) {
f350a0a8 2332 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2333 return -EBUSY;
9bc383de 2334 return 0;
ad4bb6f8 2335 }
9bc383de
JB		 2336
2337 switch (iftype) {
2338 case NL80211_IFTYPE_AP_VLAN:
2339 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2340 return 0;
2341 break;
2342 case NL80211_IFTYPE_STATION:
2343 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2344 return 0;
2345 break;
2346 default:
2347 break;
2348 }
2349
2350 return -EOPNOTSUPP;
2351}
2352
55682965
JB		 2353static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2354{
4c476991 2355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2356 struct vif_params params;
e36d56b6 2357 int err;
04a773ad 2358 enum nl80211_iftype otype, ntype;
4c476991 2359 struct net_device *dev = info->user_ptr[1];
92ffe055 2360 u32 _flags, *flags = NULL;
ac7f9cfa 2361 bool change = false;
55682965 2362
2ec600d6
LCC		 2363 memset(&params, 0, sizeof(params));
2364
04a773ad 2365 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2366
723b038d 2367 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2368 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2369 if (otype != ntype)
ac7f9cfa 2370 change = true;
4c476991
JB		 2371 if (ntype > NL80211_IFTYPE_MAX)
2372 return -EINVAL;
723b038d
JB		 2373 }
2374
92ffe055 2375 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2376 struct wireless_dev *wdev = dev->ieee80211_ptr;
2377
4c476991
JB		 2378 if (ntype != NL80211_IFTYPE_MESH_POINT)
2379 return -EINVAL;
29cbe68c
JB		 2380 if (netif_running(dev))
2381 return -EBUSY;
2382
2383 wdev_lock(wdev);
2384 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2385 IEEE80211_MAX_MESH_ID_LEN);
2386 wdev->mesh_id_up_len =
2387 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2388 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2389 wdev->mesh_id_up_len);
2390 wdev_unlock(wdev);
2ec600d6
LCC		 2391 }
2392
8b787643
FF		 2393 if (info->attrs[NL80211_ATTR_4ADDR]) {
2394 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2395 change = true;
ad4bb6f8 2396 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2397 if (err)
4c476991 2398 return err;
8b787643
FF		 2399 } else {
2400 params.use_4addr = -1;
2401 }
2402
92ffe055 2403 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2404 if (ntype != NL80211_IFTYPE_MONITOR)
2405 return -EINVAL;
92ffe055
JB		 2406 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2407 &_flags);
ac7f9cfa 2408 if (err)
4c476991 2409 return err;
ac7f9cfa
JB		 2410
2411 flags = &_flags;
2412 change = true;
92ffe055 2413 }
3b85875a 2414
e057d3c3
FF		 2415 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2416 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2417 return -EOPNOTSUPP;
2418
ac7f9cfa 2419 if (change)
3d54d255 2420 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2421 else
2422 err = 0;
60719ffd 2423
9bc383de
JB		 2424 if (!err && params.use_4addr != -1)
2425 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2426
55682965
JB		 2427 return err;
2428}
2429
2430static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2431{
4c476991 2432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2433 struct vif_params params;
84efbb84 2434 struct wireless_dev *wdev;
1c90f9d4 2435 struct sk_buff *msg;
55682965
JB		 2436 int err;
2437 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2438 u32 flags;
55682965 2439
2ec600d6
LCC		 2440 memset(&params, 0, sizeof(params));
2441
55682965
JB		 2442 if (!info->attrs[NL80211_ATTR_IFNAME])
2443 return -EINVAL;
2444
2445 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2446 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2447 if (type > NL80211_IFTYPE_MAX)
2448 return -EINVAL;
2449 }
2450
79c97e97 2451 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2452 !(rdev->wiphy.interface_modes & (1 << type)))
2453 return -EOPNOTSUPP;
55682965 2454
1c18f145
AS		 2455 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2456 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2457 ETH_ALEN);
2458 if (!is_valid_ether_addr(params.macaddr))
2459 return -EADDRNOTAVAIL;
2460 }
2461
9bc383de 2462 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2463 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2464 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2465 if (err)
4c476991 2466 return err;
9bc383de 2467 }
8b787643 2468
1c90f9d4
JB		 2469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2470 if (!msg)
2471 return -ENOMEM;
2472
66f7ac50
MW		 2473 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2474 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2475 &flags);
e057d3c3
FF		 2476
2477 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2478 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2479 return -EOPNOTSUPP;
2480
e35e4d28
HG		 2481 wdev = rdev_add_virtual_intf(rdev,
2482 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2483 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2484 if (IS_ERR(wdev)) {
2485 nlmsg_free(msg);
84efbb84 2486 return PTR_ERR(wdev);
1c90f9d4 2487 }
2ec600d6 2488
98104fde
JB		 2489 switch (type) {
2490 case NL80211_IFTYPE_MESH_POINT:
2491 if (!info->attrs[NL80211_ATTR_MESH_ID])
2492 break;
29cbe68c
JB		 2493 wdev_lock(wdev);
2494 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2495 IEEE80211_MAX_MESH_ID_LEN);
2496 wdev->mesh_id_up_len =
2497 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2498 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2499 wdev->mesh_id_up_len);
2500 wdev_unlock(wdev);
98104fde
JB		 2501 break;
2502 case NL80211_IFTYPE_P2P_DEVICE:
2503 /*
2504 * P2P Device doesn't have a netdev, so doesn't go
2505 * through the netdev notifier and must be added here
2506 */
2507 mutex_init(&wdev->mtx);
2508 INIT_LIST_HEAD(&wdev->event_list);
2509 spin_lock_init(&wdev->event_lock);
2510 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2511 spin_lock_init(&wdev->mgmt_registrations_lock);
2512
98104fde
JB		 2513 wdev->identifier = ++rdev->wdev_id;
2514 list_add_rcu(&wdev->list, &rdev->wdev_list);
2515 rdev->devlist_generation++;
98104fde
JB		 2516 break;
2517 default:
2518 break;
29cbe68c
JB		 2519 }
2520
15e47304 2521 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2522 rdev, wdev) < 0) {
2523 nlmsg_free(msg);
2524 return -ENOBUFS;
2525 }
2526
2527 return genlmsg_reply(msg, info);
55682965
JB		 2528}
2529
2530static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2531{
4c476991 2532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2533 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2534
4c476991
JB		 2535 if (!rdev->ops->del_virtual_intf)
2536 return -EOPNOTSUPP;
55682965 2537
84efbb84
JB		 2538 /*
2539 * If we remove a wireless device without a netdev then clear
2540 * user_ptr[1] so that nl80211_post_doit won't dereference it
2541 * to check if it needs to do dev_put(). Otherwise it crashes
2542 * since the wdev has been freed, unlike with a netdev where
2543 * we need the dev_put() for the netdev to really be freed.
2544 */
2545 if (!wdev->netdev)
2546 info->user_ptr[1] = NULL;
2547
e35e4d28 2548 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2549}
2550
1d9d9213
SW		 2551static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2552{
2553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2554 struct net_device *dev = info->user_ptr[1];
2555 u16 noack_map;
2556
2557 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2558 return -EINVAL;
2559
2560 if (!rdev->ops->set_noack_map)
2561 return -EOPNOTSUPP;
2562
2563 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2564
e35e4d28 2565 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2566}
2567
41ade00f
JB		 2568struct get_key_cookie {
2569 struct sk_buff *msg;
2570 int error;
b9454e83 2571 int idx;
41ade00f
JB		 2572};
2573
2574static void get_key_callback(void *c, struct key_params *params)
2575{
b9454e83 2576 struct nlattr *key;
41ade00f
JB		 2577 struct get_key_cookie *cookie = c;
2578
9360ffd1
DM		 2579 if ((params->key &&
2580 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2581 params->key_len, params->key)) ||
2582 (params->seq &&
2583 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2584 params->seq_len, params->seq)) ||
2585 (params->cipher &&
2586 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2587 params->cipher)))
2588 goto nla_put_failure;
41ade00f 2589
b9454e83
JB		 2590 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2591 if (!key)
2592 goto nla_put_failure;
2593
9360ffd1
DM		 2594 if ((params->key &&
2595 nla_put(cookie->msg, NL80211_KEY_DATA,
2596 params->key_len, params->key)) ||
2597 (params->seq &&
2598 nla_put(cookie->msg, NL80211_KEY_SEQ,
2599 params->seq_len, params->seq)) ||
2600 (params->cipher &&
2601 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2602 params->cipher)))
2603 goto nla_put_failure;
b9454e83 2604
9360ffd1
DM		 2605 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2606 goto nla_put_failure;
b9454e83
JB		 2607
2608 nla_nest_end(cookie->msg, key);
2609
41ade00f
JB		 2610 return;
2611 nla_put_failure:
2612 cookie->error = 1;
2613}
2614
2615static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2616{
4c476991 2617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2618 int err;
4c476991 2619 struct net_device *dev = info->user_ptr[1];
41ade00f 2620 u8 key_idx = 0;
e31b8213
JB		 2621 const u8 *mac_addr = NULL;
2622 bool pairwise;
41ade00f
JB		 2623 struct get_key_cookie cookie = {
2624 .error = 0,
2625 };
2626 void *hdr;
2627 struct sk_buff *msg;
2628
2629 if (info->attrs[NL80211_ATTR_KEY_IDX])
2630 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2631
3cfcf6ac 2632 if (key_idx > 5)
41ade00f
JB		 2633 return -EINVAL;
2634
2635 if (info->attrs[NL80211_ATTR_MAC])
2636 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2637
e31b8213
JB		 2638 pairwise = !!mac_addr;
2639 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2640 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2641 if (kt >= NUM_NL80211_KEYTYPES)
2642 return -EINVAL;
2643 if (kt != NL80211_KEYTYPE_GROUP &&
2644 kt != NL80211_KEYTYPE_PAIRWISE)
2645 return -EINVAL;
2646 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2647 }
2648
4c476991
JB		 2649 if (!rdev->ops->get_key)
2650 return -EOPNOTSUPP;
41ade00f 2651
fd2120ca 2652 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2653 if (!msg)
2654 return -ENOMEM;
41ade00f 2655
15e47304 2656 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2657 NL80211_CMD_NEW_KEY);
4c476991
JB		 2658 if (IS_ERR(hdr))
2659 return PTR_ERR(hdr);
41ade00f
JB		 2660
2661 cookie.msg = msg;
b9454e83 2662 cookie.idx = key_idx;
41ade00f 2663
9360ffd1
DM		 2664 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2665 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2666 goto nla_put_failure;
2667 if (mac_addr &&
2668 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2669 goto nla_put_failure;
41ade00f 2670
e31b8213
JB		 2671 if (pairwise && mac_addr &&
2672 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2673 return -ENOENT;
2674
e35e4d28
HG		 2675 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2676 get_key_callback);
41ade00f
JB		 2677
2678 if (err)
6c95e2a2 2679 goto free_msg;
41ade00f
JB		 2680
2681 if (cookie.error)
2682 goto nla_put_failure;
2683
2684 genlmsg_end(msg, hdr);
4c476991 2685 return genlmsg_reply(msg, info);
41ade00f
JB		 2686
2687 nla_put_failure:
2688 err = -ENOBUFS;
6c95e2a2 2689 free_msg:
41ade00f 2690 nlmsg_free(msg);
41ade00f
JB		 2691 return err;
2692}
2693
2694static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2695{
4c476991 2696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2697 struct key_parse key;
41ade00f 2698 int err;
4c476991 2699 struct net_device *dev = info->user_ptr[1];
41ade00f 2700
b9454e83
JB		 2701 err = nl80211_parse_key(info, &key);
2702 if (err)
2703 return err;
41ade00f 2704
b9454e83 2705 if (key.idx < 0)
41ade00f
JB		 2706 return -EINVAL;
2707
b9454e83
JB		 2708 /* only support setting default key */
2709 if (!key.def && !key.defmgmt)
41ade00f
JB		 2710 return -EINVAL;
2711
dbd2fd65 2712 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2713
dbd2fd65
JB		 2714 if (key.def) {
2715 if (!rdev->ops->set_default_key) {
2716 err = -EOPNOTSUPP;
2717 goto out;
2718 }
41ade00f 2719
dbd2fd65
JB		 2720 err = nl80211_key_allowed(dev->ieee80211_ptr);
2721 if (err)
2722 goto out;
2723
e35e4d28 2724 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2725 key.def_uni, key.def_multi);
2726
2727 if (err)
2728 goto out;
fffd0934 2729
3d23e349 2730#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2731 dev->ieee80211_ptr->wext.default_key = key.idx;
2732#endif
2733 } else {
2734 if (key.def_uni || !key.def_multi) {
2735 err = -EINVAL;
2736 goto out;
2737 }
2738
2739 if (!rdev->ops->set_default_mgmt_key) {
2740 err = -EOPNOTSUPP;
2741 goto out;
2742 }
2743
2744 err = nl80211_key_allowed(dev->ieee80211_ptr);
2745 if (err)
2746 goto out;
2747
e35e4d28 2748 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2749 if (err)
2750 goto out;
2751
2752#ifdef CONFIG_CFG80211_WEXT
2753 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2754#endif
dbd2fd65
JB		 2755 }
2756
2757 out:
fffd0934 2758 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2759
41ade00f
JB		 2760 return err;
2761}
2762
2763static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2764{
4c476991 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2766 int err;
4c476991 2767 struct net_device *dev = info->user_ptr[1];
b9454e83 2768 struct key_parse key;
e31b8213 2769 const u8 *mac_addr = NULL;
41ade00f 2770
b9454e83
JB		 2771 err = nl80211_parse_key(info, &key);
2772 if (err)
2773 return err;
41ade00f 2774
b9454e83 2775 if (!key.p.key)
41ade00f
JB		 2776 return -EINVAL;
2777
41ade00f
JB		 2778 if (info->attrs[NL80211_ATTR_MAC])
2779 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2780
e31b8213
JB		 2781 if (key.type == -1) {
2782 if (mac_addr)
2783 key.type = NL80211_KEYTYPE_PAIRWISE;
2784 else
2785 key.type = NL80211_KEYTYPE_GROUP;
2786 }
2787
2788 /* for now */
2789 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2790 key.type != NL80211_KEYTYPE_GROUP)
2791 return -EINVAL;
2792
4c476991
JB		 2793 if (!rdev->ops->add_key)
2794 return -EOPNOTSUPP;
25e47c18 2795
e31b8213
JB		 2796 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2797 key.type == NL80211_KEYTYPE_PAIRWISE,
2798 mac_addr))
4c476991 2799 return -EINVAL;
41ade00f 2800
fffd0934
JB		 2801 wdev_lock(dev->ieee80211_ptr);
2802 err = nl80211_key_allowed(dev->ieee80211_ptr);
2803 if (!err)
e35e4d28
HG		 2804 err = rdev_add_key(rdev, dev, key.idx,
2805 key.type == NL80211_KEYTYPE_PAIRWISE,
2806 mac_addr, &key.p);
fffd0934 2807 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2808
41ade00f
JB		 2809 return err;
2810}
2811
2812static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2813{
4c476991 2814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2815 int err;
4c476991 2816 struct net_device *dev = info->user_ptr[1];
41ade00f 2817 u8 *mac_addr = NULL;
b9454e83 2818 struct key_parse key;
41ade00f 2819
b9454e83
JB		 2820 err = nl80211_parse_key(info, &key);
2821 if (err)
2822 return err;
41ade00f
JB		 2823
2824 if (info->attrs[NL80211_ATTR_MAC])
2825 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2826
e31b8213
JB		 2827 if (key.type == -1) {
2828 if (mac_addr)
2829 key.type = NL80211_KEYTYPE_PAIRWISE;
2830 else
2831 key.type = NL80211_KEYTYPE_GROUP;
2832 }
2833
2834 /* for now */
2835 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2836 key.type != NL80211_KEYTYPE_GROUP)
2837 return -EINVAL;
2838
4c476991
JB		 2839 if (!rdev->ops->del_key)
2840 return -EOPNOTSUPP;
41ade00f 2841
fffd0934
JB		 2842 wdev_lock(dev->ieee80211_ptr);
2843 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2844
2845 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2846 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2847 err = -ENOENT;
2848
fffd0934 2849 if (!err)
e35e4d28
HG		 2850 err = rdev_del_key(rdev, dev, key.idx,
2851 key.type == NL80211_KEYTYPE_PAIRWISE,
2852 mac_addr);
41ade00f 2853
3d23e349 2854#ifdef CONFIG_CFG80211_WEXT
08645126 2855 if (!err) {
b9454e83 2856 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2857 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2858 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2859 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2860 }
2861#endif
fffd0934 2862 wdev_unlock(dev->ieee80211_ptr);
08645126 2863
41ade00f
JB		 2864 return err;
2865}
2866
77765eaf
VT		 2867/* This function returns an error or the number of nested attributes */
2868static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2869{
2870 struct nlattr *attr;
2871 int n_entries = 0, tmp;
2872
2873 nla_for_each_nested(attr, nl_attr, tmp) {
2874 if (nla_len(attr) != ETH_ALEN)
2875 return -EINVAL;
2876
2877 n_entries++;
2878 }
2879
2880 return n_entries;
2881}
2882
2883/*
2884 * This function parses ACL information and allocates memory for ACL data.
2885 * On successful return, the calling function is responsible to free the
2886 * ACL buffer returned by this function.
2887 */
2888static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2889 struct genl_info *info)
2890{
2891 enum nl80211_acl_policy acl_policy;
2892 struct nlattr *attr;
2893 struct cfg80211_acl_data *acl;
2894 int i = 0, n_entries, tmp;
2895
2896 if (!wiphy->max_acl_mac_addrs)
2897 return ERR_PTR(-EOPNOTSUPP);
2898
2899 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2900 return ERR_PTR(-EINVAL);
2901
2902 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2903 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2904 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2905 return ERR_PTR(-EINVAL);
2906
2907 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2908 return ERR_PTR(-EINVAL);
2909
2910 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2911 if (n_entries < 0)
2912 return ERR_PTR(n_entries);
2913
2914 if (n_entries > wiphy->max_acl_mac_addrs)
2915 return ERR_PTR(-ENOTSUPP);
2916
2917 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2918 GFP_KERNEL);
2919 if (!acl)
2920 return ERR_PTR(-ENOMEM);
2921
2922 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2923 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2924 i++;
2925 }
2926
2927 acl->n_acl_entries = n_entries;
2928 acl->acl_policy = acl_policy;
2929
2930 return acl;
2931}
2932
2933static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2934{
2935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2936 struct net_device *dev = info->user_ptr[1];
2937 struct cfg80211_acl_data *acl;
2938 int err;
2939
2940 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2941 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2942 return -EOPNOTSUPP;
2943
2944 if (!dev->ieee80211_ptr->beacon_interval)
2945 return -EINVAL;
2946
2947 acl = parse_acl_data(&rdev->wiphy, info);
2948 if (IS_ERR(acl))
2949 return PTR_ERR(acl);
2950
2951 err = rdev_set_mac_acl(rdev, dev, acl);
2952
2953 kfree(acl);
2954
2955 return err;
2956}
2957
a1193be8 2958static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 2959 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2960{
8860020e 2961 bool haveinfo = false;
ed1b6cc7 2962
a1193be8
SW		 2963 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2964 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2965 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2966 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2967 return -EINVAL;
2968
8860020e 2969 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2970
a1193be8
SW		 2971 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
2972 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
2973 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 2974 if (!bcn->head_len)
2975 return -EINVAL;
2976 haveinfo = true;
ed1b6cc7
JB		 2977 }
2978
a1193be8
SW		 2979 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
2980 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
2981 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2982 haveinfo = true;
ed1b6cc7
JB		 2983 }
2984
4c476991
JB		 2985 if (!haveinfo)
2986 return -EINVAL;
3b85875a 2987
a1193be8
SW		 2988 if (attrs[NL80211_ATTR_IE]) {
2989 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
2990 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2991 }
2992
a1193be8 2993 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2994 bcn->proberesp_ies =
a1193be8 2995 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2996 bcn->proberesp_ies_len =
a1193be8 2997 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 2998 }
2999
a1193be8 3000 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3001 bcn->assocresp_ies =
a1193be8 3002 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3003 bcn->assocresp_ies_len =
a1193be8 3004 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3005 }
3006
a1193be8
SW		 3007 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3008 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3009 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3010 }
3011
8860020e
JB		 3012 return 0;
3013}
3014
46c1dd0c
FF		 3015static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3016 struct cfg80211_ap_settings *params)
3017{
3018 struct wireless_dev *wdev;
3019 bool ret = false;
3020
89a54e48 3021 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3022 if (wdev->iftype != NL80211_IFTYPE_AP &&
3023 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3024 continue;
3025
683b6d3b 3026 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3027 continue;
3028
683b6d3b 3029 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3030 ret = true;
3031 break;
3032 }
3033
46c1dd0c
FF		 3034 return ret;
3035}
3036
e39e5b5e
JM		 3037static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3038 enum nl80211_auth_type auth_type,
3039 enum nl80211_commands cmd)
3040{
3041 if (auth_type > NL80211_AUTHTYPE_MAX)
3042 return false;
3043
3044 switch (cmd) {
3045 case NL80211_CMD_AUTHENTICATE:
3046 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3047 auth_type == NL80211_AUTHTYPE_SAE)
3048 return false;
3049 return true;
3050 case NL80211_CMD_CONNECT:
3051 case NL80211_CMD_START_AP:
3052 /* SAE not supported yet */
3053 if (auth_type == NL80211_AUTHTYPE_SAE)
3054 return false;
3055 return true;
3056 default:
3057 return false;
3058 }
3059}
3060
8860020e
JB		 3061static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3062{
3063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3064 struct net_device *dev = info->user_ptr[1];
3065 struct wireless_dev *wdev = dev->ieee80211_ptr;
3066 struct cfg80211_ap_settings params;
3067 int err;
04f39047 3068 u8 radar_detect_width = 0;
8860020e
JB		 3069
3070 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3071 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3072 return -EOPNOTSUPP;
3073
3074 if (!rdev->ops->start_ap)
3075 return -EOPNOTSUPP;
3076
3077 if (wdev->beacon_interval)
3078 return -EALREADY;
3079
3080 memset(&params, 0, sizeof(params));
3081
3082 /* these are required for START_AP */
3083 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3084 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3085 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3086 return -EINVAL;
3087
a1193be8 3088 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3089 if (err)
3090 return err;
3091
3092 params.beacon_interval =
3093 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3094 params.dtim_period =
3095 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3096
3097 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3098 if (err)
3099 return err;
3100
3101 /*
3102 * In theory, some of these attributes should be required here
3103 * but since they were not used when the command was originally
3104 * added, keep them optional for old user space programs to let
3105 * them continue to work with drivers that do not need the
3106 * additional information -- drivers must check!
3107 */
3108 if (info->attrs[NL80211_ATTR_SSID]) {
3109 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3110 params.ssid_len =
3111 nla_len(info->attrs[NL80211_ATTR_SSID]);
3112 if (params.ssid_len == 0 ||
3113 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3114 return -EINVAL;
3115 }
3116
3117 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3118 params.hidden_ssid = nla_get_u32(
3119 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3120 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3121 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3122 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3123 return -EINVAL;
3124 }
3125
3126 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3127
3128 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3129 params.auth_type = nla_get_u32(
3130 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3131 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3132 NL80211_CMD_START_AP))
8860020e
JB		 3133 return -EINVAL;
3134 } else
3135 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3136
3137 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3138 NL80211_MAX_NR_CIPHER_SUITES);
3139 if (err)
3140 return err;
3141
1b658f11
VT		 3142 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3143 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3144 return -EOPNOTSUPP;
3145 params.inactivity_timeout = nla_get_u16(
3146 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3147 }
3148
53cabad7
JB		 3149 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3151 return -EINVAL;
3152 params.p2p_ctwindow =
3153 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3154 if (params.p2p_ctwindow > 127)
3155 return -EINVAL;
3156 if (params.p2p_ctwindow != 0 &&
3157 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3158 return -EINVAL;
3159 }
3160
3161 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3162 u8 tmp;
3163
3164 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3165 return -EINVAL;
3166 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3167 if (tmp > 1)
3168 return -EINVAL;
3169 params.p2p_opp_ps = tmp;
3170 if (params.p2p_opp_ps != 0 &&
3171 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3172 return -EINVAL;
3173 }
3174
aa430da4 3175 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3176 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3177 if (err)
3178 return err;
3179 } else if (wdev->preset_chandef.chan) {
3180 params.chandef = wdev->preset_chandef;
46c1dd0c 3181 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3182 return -EINVAL;
3183
683b6d3b 3184 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3185 return -EINVAL;
3186
04f39047
SW		 3187 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3188 if (err < 0)
3189 return err;
3190 if (err) {
3191 radar_detect_width = BIT(params.chandef.width);
3192 params.radar_required = true;
3193 }
3194
04f39047
SW		 3195 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3196 params.chandef.chan,
3197 CHAN_MODE_SHARED,
3198 radar_detect_width);
e4e32459
MK		 3199 if (err)
3200 return err;
3201
77765eaf
VT		 3202 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3203 params.acl = parse_acl_data(&rdev->wiphy, info);
3204 if (IS_ERR(params.acl))
3205 return PTR_ERR(params.acl);
3206 }
3207
e35e4d28 3208 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3209 if (!err) {
683b6d3b 3210 wdev->preset_chandef = params.chandef;
8860020e 3211 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3212 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3213 wdev->ssid_len = params.ssid_len;
3214 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3215 }
77765eaf
VT		 3216
3217 kfree(params.acl);
3218
56d1893d 3219 return err;
ed1b6cc7
JB		 3220}
3221
8860020e
JB		 3222static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3223{
3224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3225 struct net_device *dev = info->user_ptr[1];
3226 struct wireless_dev *wdev = dev->ieee80211_ptr;
3227 struct cfg80211_beacon_data params;
3228 int err;
3229
3230 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3231 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3232 return -EOPNOTSUPP;
3233
3234 if (!rdev->ops->change_beacon)
3235 return -EOPNOTSUPP;
3236
3237 if (!wdev->beacon_interval)
3238 return -EINVAL;
3239
a1193be8 3240 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3241 if (err)
3242 return err;
3243
e35e4d28 3244 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3245}
3246
3247static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3248{
4c476991
JB		 3249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3250 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3251
60771780 3252 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3253}
3254
5727ef1b
JB		 3255static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3256 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3257 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3258 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3259 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3260 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3261 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3262};
3263
eccb8e8f 3264static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3265 enum nl80211_iftype iftype,
eccb8e8f 3266 struct station_parameters *params)
5727ef1b
JB		 3267{
3268 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3269 struct nlattr *nla;
5727ef1b
JB		 3270 int flag;
3271
eccb8e8f
JB		 3272 /*
3273 * Try parsing the new attribute first so userspace
3274 * can specify both for older kernels.
3275 */
3276 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3277 if (nla) {
3278 struct nl80211_sta_flag_update *sta_flags;
3279
3280 sta_flags = nla_data(nla);
3281 params->sta_flags_mask = sta_flags->mask;
3282 params->sta_flags_set = sta_flags->set;
77ee7c89 3283 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3284 if ((params->sta_flags_mask |
3285 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3286 return -EINVAL;
3287 return 0;
3288 }
3289
3290 /* if present, parse the old attribute */
5727ef1b 3291
eccb8e8f 3292 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3293 if (!nla)
3294 return 0;
3295
3296 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3297 nla, sta_flags_policy))
3298 return -EINVAL;
3299
bdd3ae3d
JB		 3300 /*
3301 * Only allow certain flags for interface types so that
3302 * other attributes are silently ignored. Remember that
3303 * this is backward compatibility code with old userspace
3304 * and shouldn't be hit in other cases anyway.
3305 */
3306 switch (iftype) {
3307 case NL80211_IFTYPE_AP:
3308 case NL80211_IFTYPE_AP_VLAN:
3309 case NL80211_IFTYPE_P2P_GO:
3310 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3311 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3312 BIT(NL80211_STA_FLAG_WME) |
3313 BIT(NL80211_STA_FLAG_MFP);
3314 break;
3315 case NL80211_IFTYPE_P2P_CLIENT:
3316 case NL80211_IFTYPE_STATION:
3317 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3318 BIT(NL80211_STA_FLAG_TDLS_PEER);
3319 break;
3320 case NL80211_IFTYPE_MESH_POINT:
3321 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3322 BIT(NL80211_STA_FLAG_MFP) |
3323 BIT(NL80211_STA_FLAG_AUTHORIZED);
3324 default:
3325 return -EINVAL;
3326 }
5727ef1b 3327
3383b5a6
JB		 3328 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3329 if (flags[flag]) {
eccb8e8f 3330 params->sta_flags_set |= (1<<flag);
5727ef1b 3331
3383b5a6
JB		 3332 /* no longer support new API additions in old API */
3333 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3334 return -EINVAL;
3335 }
3336 }
3337
5727ef1b
JB		 3338 return 0;
3339}
3340
c8dcfd8a
FF		 3341static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3342 int attr)
3343{
3344 struct nlattr *rate;
8eb41c8d
VK		 3345 u32 bitrate;
3346 u16 bitrate_compat;
c8dcfd8a
FF		 3347
3348 rate = nla_nest_start(msg, attr);
3349 if (!rate)
db9c64cf 3350 return false;
c8dcfd8a
FF		 3351
3352 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3353 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3354 /* report 16-bit bitrate only if we can */
3355 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3356 if (bitrate > 0 &&
3357 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3358 return false;
3359 if (bitrate_compat > 0 &&
3360 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3361 return false;
3362
3363 if (info->flags & RATE_INFO_FLAGS_MCS) {
3364 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3365 return false;
3366 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3367 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3368 return false;
3369 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3370 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3371 return false;
3372 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3373 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3374 return false;
3375 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3376 return false;
3377 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3378 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3379 return false;
3380 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3381 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3382 return false;
3383 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3384 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3385 return false;
3386 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3387 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3388 return false;
3389 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3390 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3391 return false;
3392 }
c8dcfd8a
FF		 3393
3394 nla_nest_end(msg, rate);
3395 return true;
c8dcfd8a
FF		 3396}
3397
119363c7
FF		 3398static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3399 int id)
3400{
3401 void *attr;
3402 int i = 0;
3403
3404 if (!mask)
3405 return true;
3406
3407 attr = nla_nest_start(msg, id);
3408 if (!attr)
3409 return false;
3410
3411 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3412 if (!(mask & BIT(i)))
3413 continue;
3414
3415 if (nla_put_u8(msg, i, signal[i]))
3416 return false;
3417 }
3418
3419 nla_nest_end(msg, attr);
3420
3421 return true;
3422}
3423
15e47304 3424static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3425 int flags,
3426 struct cfg80211_registered_device *rdev,
3427 struct net_device *dev,
98b62183 3428 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3429{
3430 void *hdr;
f4263c98 3431 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3432
15e47304 3433 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3434 if (!hdr)
3435 return -1;
3436
9360ffd1
DM		 3437 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3438 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3439 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3440 goto nla_put_failure;
f5ea9120 3441
2ec600d6
LCC		 3442 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3443 if (!sinfoattr)
fd5b74dc 3444 goto nla_put_failure;
9360ffd1
DM		 3445 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3446 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3447 sinfo->connected_time))
3448 goto nla_put_failure;
3449 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3450 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3451 sinfo->inactive_time))
3452 goto nla_put_failure;
42745e03
VK		 3453 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3454 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3455 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3456 (u32)sinfo->rx_bytes))
9360ffd1 3457 goto nla_put_failure;
42745e03 3458 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3459 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3460 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3461 (u32)sinfo->tx_bytes))
3462 goto nla_put_failure;
3463 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3464 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3465 sinfo->rx_bytes))
3466 goto nla_put_failure;
3467 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3468 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3469 sinfo->tx_bytes))
3470 goto nla_put_failure;
3471 if ((sinfo->filled & STATION_INFO_LLID) &&
3472 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3473 goto nla_put_failure;
3474 if ((sinfo->filled & STATION_INFO_PLID) &&
3475 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3476 goto nla_put_failure;
3477 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3478 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3479 sinfo->plink_state))
3480 goto nla_put_failure;
66266b3a
JL		 3481 switch (rdev->wiphy.signal_type) {
3482 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3483 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3484 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3485 sinfo->signal))
3486 goto nla_put_failure;
3487 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3488 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3489 sinfo->signal_avg))
3490 goto nla_put_failure;
66266b3a
JL		 3491 break;
3492 default:
3493 break;
3494 }
119363c7
FF		 3495 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3496 if (!nl80211_put_signal(msg, sinfo->chains,
3497 sinfo->chain_signal,
3498 NL80211_STA_INFO_CHAIN_SIGNAL))
3499 goto nla_put_failure;
3500 }
3501 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3502 if (!nl80211_put_signal(msg, sinfo->chains,
3503 sinfo->chain_signal_avg,
3504 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3505 goto nla_put_failure;
3506 }
420e7fab 3507 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3508 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3509 NL80211_STA_INFO_TX_BITRATE))
3510 goto nla_put_failure;
3511 }
3512 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3513 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3514 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3515 goto nla_put_failure;
420e7fab 3516 }
9360ffd1
DM		 3517 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3518 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3519 sinfo->rx_packets))
3520 goto nla_put_failure;
3521 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3522 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3523 sinfo->tx_packets))
3524 goto nla_put_failure;
3525 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3526 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3527 sinfo->tx_retries))
3528 goto nla_put_failure;
3529 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3530 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3531 sinfo->tx_failed))
3532 goto nla_put_failure;
3533 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3534 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3535 sinfo->beacon_loss_count))
3536 goto nla_put_failure;
3b1c5a53
MP		 3537 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3538 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3539 sinfo->local_pm))
3540 goto nla_put_failure;
3541 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3542 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3543 sinfo->peer_pm))
3544 goto nla_put_failure;
3545 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3546 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3547 sinfo->nonpeer_pm))
3548 goto nla_put_failure;
f4263c98
PS		 3549 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3550 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3551 if (!bss_param)
3552 goto nla_put_failure;
3553
9360ffd1
DM		 3554 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3555 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3556 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3557 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3558 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3559 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3560 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3561 sinfo->bss_param.dtim_period) ||
3562 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3563 sinfo->bss_param.beacon_interval))
3564 goto nla_put_failure;
f4263c98
PS		 3565
3566 nla_nest_end(msg, bss_param);
3567 }
9360ffd1
DM		 3568 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3569 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3570 sizeof(struct nl80211_sta_flag_update),
3571 &sinfo->sta_flags))
3572 goto nla_put_failure;
7eab0f64
JL		 3573 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3574 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3575 sinfo->t_offset))
3576 goto nla_put_failure;
2ec600d6 3577 nla_nest_end(msg, sinfoattr);
fd5b74dc 3578
9360ffd1
DM		 3579 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3580 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3581 sinfo->assoc_req_ies))
3582 goto nla_put_failure;
50d3dfb7 3583
fd5b74dc
JB		 3584 return genlmsg_end(msg, hdr);
3585
3586 nla_put_failure:
bc3ed28c
TG		 3587 genlmsg_cancel(msg, hdr);
3588 return -EMSGSIZE;
fd5b74dc
JB		 3589}
3590
2ec600d6 3591static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3592 struct netlink_callback *cb)
2ec600d6 3593{
2ec600d6
LCC		 3594 struct station_info sinfo;
3595 struct cfg80211_registered_device *dev;
97990a06 3596 struct wireless_dev *wdev;
2ec600d6 3597 u8 mac_addr[ETH_ALEN];
97990a06 3598 int sta_idx = cb->args[2];
2ec600d6 3599 int err;
2ec600d6 3600
97990a06 3601 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3602 if (err)
3603 return err;
bba95fef 3604
97990a06
JB		 3605 if (!wdev->netdev) {
3606 err = -EINVAL;
3607 goto out_err;
3608 }
3609
bba95fef 3610 if (!dev->ops->dump_station) {
eec60b03 3611 err = -EOPNOTSUPP;
bba95fef
JB		 3612 goto out_err;
3613 }
3614
bba95fef 3615 while (1) {
f612cedf 3616 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3617 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3618 mac_addr, &sinfo);
bba95fef
JB		 3619 if (err == -ENOENT)
3620 break;
3621 if (err)
3b85875a 3622 goto out_err;
bba95fef
JB		 3623
3624 if (nl80211_send_station(skb,
15e47304 3625 NETLINK_CB(cb->skb).portid,
bba95fef 3626 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3627 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3628 &sinfo) < 0)
3629 goto out;
3630
3631 sta_idx++;
3632 }
3633
3634
3635 out:
97990a06 3636 cb->args[2] = sta_idx;
bba95fef 3637 err = skb->len;
bba95fef 3638 out_err:
97990a06 3639 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3640
3641 return err;
2ec600d6 3642}
fd5b74dc 3643
5727ef1b
JB		 3644static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3645{
4c476991
JB		 3646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3647 struct net_device *dev = info->user_ptr[1];
2ec600d6 3648 struct station_info sinfo;
fd5b74dc
JB		 3649 struct sk_buff *msg;
3650 u8 *mac_addr = NULL;
4c476991 3651 int err;
fd5b74dc 3652
2ec600d6 3653 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3654
3655 if (!info->attrs[NL80211_ATTR_MAC])
3656 return -EINVAL;
3657
3658 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3659
4c476991
JB		 3660 if (!rdev->ops->get_station)
3661 return -EOPNOTSUPP;
3b85875a 3662
e35e4d28 3663 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3664 if (err)
4c476991 3665 return err;
2ec600d6 3666
fd2120ca 3667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3668 if (!msg)
4c476991 3669 return -ENOMEM;
fd5b74dc 3670
15e47304 3671 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3672 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3673 nlmsg_free(msg);
3674 return -ENOBUFS;
3675 }
3b85875a 3676
4c476991 3677 return genlmsg_reply(msg, info);
5727ef1b
JB		 3678}
3679
77ee7c89
JB		 3680int cfg80211_check_station_change(struct wiphy *wiphy,
3681 struct station_parameters *params,
3682 enum cfg80211_station_type statype)
3683{
3684 if (params->listen_interval != -1)
3685 return -EINVAL;
3686 if (params->aid)
3687 return -EINVAL;
3688
3689 /* When you run into this, adjust the code below for the new flag */
3690 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3691
3692 switch (statype) {
eef941e6
TP		 3693 case CFG80211_STA_MESH_PEER_KERNEL:
3694 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3695 /*
3696 * No ignoring the TDLS flag here -- the userspace mesh
3697 * code doesn't have the bug of including TDLS in the
3698 * mask everywhere.
3699 */
3700 if (params->sta_flags_mask &
3701 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3702 BIT(NL80211_STA_FLAG_MFP) |
3703 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3704 return -EINVAL;
3705 break;
3706 case CFG80211_STA_TDLS_PEER_SETUP:
3707 case CFG80211_STA_TDLS_PEER_ACTIVE:
3708 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3709 return -EINVAL;
3710 /* ignore since it can't change */
3711 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3712 break;
3713 default:
3714 /* disallow mesh-specific things */
3715 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3716 return -EINVAL;
3717 if (params->local_pm)
3718 return -EINVAL;
3719 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3720 return -EINVAL;
3721 }
3722
3723 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3724 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3725 /* TDLS can't be set, ... */
3726 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3727 return -EINVAL;
3728 /*
3729 * ... but don't bother the driver with it. This works around
3730 * a hostapd/wpa_supplicant issue -- it always includes the
3731 * TLDS_PEER flag in the mask even for AP mode.
3732 */
3733 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3734 }
3735
3736 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3737 /* reject other things that can't change */
3738 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3739 return -EINVAL;
3740 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3741 return -EINVAL;
3742 if (params->supported_rates)
3743 return -EINVAL;
3744 if (params->ext_capab || params->ht_capa || params->vht_capa)
3745 return -EINVAL;
3746 }
3747
3748 if (statype != CFG80211_STA_AP_CLIENT) {
3749 if (params->vlan)
3750 return -EINVAL;
3751 }
3752
3753 switch (statype) {
3754 case CFG80211_STA_AP_MLME_CLIENT:
3755 /* Use this only for authorizing/unauthorizing a station */
3756 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3757 return -EOPNOTSUPP;
3758 break;
3759 case CFG80211_STA_AP_CLIENT:
3760 /* accept only the listed bits */
3761 if (params->sta_flags_mask &
3762 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3763 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3764 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3765 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3766 BIT(NL80211_STA_FLAG_WME) |
3767 BIT(NL80211_STA_FLAG_MFP)))
3768 return -EINVAL;
3769
3770 /* but authenticated/associated only if driver handles it */
3771 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3772 params->sta_flags_mask &
3773 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3774 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3775 return -EINVAL;
3776 break;
3777 case CFG80211_STA_IBSS:
3778 case CFG80211_STA_AP_STA:
3779 /* reject any changes other than AUTHORIZED */
3780 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3781 return -EINVAL;
3782 break;
3783 case CFG80211_STA_TDLS_PEER_SETUP:
3784 /* reject any changes other than AUTHORIZED or WME */
3785 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3786 BIT(NL80211_STA_FLAG_WME)))
3787 return -EINVAL;
3788 /* force (at least) rates when authorizing */
3789 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3790 !params->supported_rates)
3791 return -EINVAL;
3792 break;
3793 case CFG80211_STA_TDLS_PEER_ACTIVE:
3794 /* reject any changes */
3795 return -EINVAL;
eef941e6 3796 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3797 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3798 return -EINVAL;
3799 break;
eef941e6 3800 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3801 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3802 return -EINVAL;
3803 break;
3804 }
3805
3806 return 0;
3807}
3808EXPORT_SYMBOL(cfg80211_check_station_change);
3809
5727ef1b 3810/*
c258d2de 3811 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3812 */
80b99899
JB		 3813static struct net_device *get_vlan(struct genl_info *info,
3814 struct cfg80211_registered_device *rdev)
5727ef1b 3815{
463d0183 3816 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3817 struct net_device *v;
3818 int ret;
3819
3820 if (!vlanattr)
3821 return NULL;
3822
3823 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3824 if (!v)
3825 return ERR_PTR(-ENODEV);
3826
3827 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3828 ret = -EINVAL;
3829 goto error;
5727ef1b 3830 }
80b99899 3831
77ee7c89
JB		 3832 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3833 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3834 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3835 ret = -EINVAL;
3836 goto error;
3837 }
3838
80b99899
JB		 3839 if (!netif_running(v)) {
3840 ret = -ENETDOWN;
3841 goto error;
3842 }
3843
3844 return v;
3845 error:
3846 dev_put(v);
3847 return ERR_PTR(ret);
5727ef1b
JB		 3848}
3849
df881293
JM		 3850static struct nla_policy
3851nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3852 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3853 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3854};
3855
ff276691
JB		 3856static int nl80211_parse_sta_wme(struct genl_info *info,
3857 struct station_parameters *params)
df881293 3858{
df881293
JM		 3859 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3860 struct nlattr *nla;
3861 int err;
3862
df881293
JM		 3863 /* parse WME attributes if present */
3864 if (!info->attrs[NL80211_ATTR_STA_WME])
3865 return 0;
3866
3867 nla = info->attrs[NL80211_ATTR_STA_WME];
3868 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3869 nl80211_sta_wme_policy);
3870 if (err)
3871 return err;
3872
3873 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3874 params->uapsd_queues = nla_get_u8(
3875 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3876 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3877 return -EINVAL;
3878
3879 if (tb[NL80211_STA_WME_MAX_SP])
3880 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3881
3882 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3883 return -EINVAL;
3884
3885 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3886
3887 return 0;
3888}
3889
ff276691
JB		 3890static int nl80211_set_station_tdls(struct genl_info *info,
3891 struct station_parameters *params)
3892{
3893 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3894 if (info->attrs[NL80211_ATTR_PEER_AID])
3895 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3896 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3897 params->ht_capa =
3898 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3899 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3900 params->vht_capa =
3901 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3902
3903 return nl80211_parse_sta_wme(info, params);
3904}
3905
5727ef1b
JB		 3906static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3907{
4c476991 3908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3909 struct net_device *dev = info->user_ptr[1];
5727ef1b 3910 struct station_parameters params;
77ee7c89
JB		 3911 u8 *mac_addr;
3912 int err;
5727ef1b
JB		 3913
3914 memset(&params, 0, sizeof(params));
3915
3916 params.listen_interval = -1;
3917
77ee7c89
JB		 3918 if (!rdev->ops->change_station)
3919 return -EOPNOTSUPP;
3920
5727ef1b
JB		 3921 if (info->attrs[NL80211_ATTR_STA_AID])
3922 return -EINVAL;
3923
3924 if (!info->attrs[NL80211_ATTR_MAC])
3925 return -EINVAL;
3926
3927 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3928
3929 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3930 params.supported_rates =
3931 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3932 params.supported_rates_len =
3933 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3934 }
3935
9d62a986
JM		 3936 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3937 params.capability =
3938 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3939 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3940 }
3941
3942 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3943 params.ext_capab =
3944 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3945 params.ext_capab_len =
3946 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3947 }
3948
df881293 3949 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3950 return -EINVAL;
36aedc90 3951
bdd3ae3d 3952 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3953 return -EINVAL;
3954
f8bacc21 3955 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3956 params.plink_action =
f8bacc21
JB		 3957 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3958 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3959 return -EINVAL;
3960 }
2ec600d6 3961
f8bacc21 3962 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3963 params.plink_state =
f8bacc21
JB		 3964 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3965 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3966 return -EINVAL;
3967 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3968 }
9c3990aa 3969
3b1c5a53
MP		 3970 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3971 enum nl80211_mesh_power_mode pm = nla_get_u32(
3972 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3973
3974 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3975 pm > NL80211_MESH_POWER_MAX)
3976 return -EINVAL;
3977
3978 params.local_pm = pm;
3979 }
3980
77ee7c89
JB		 3981 /* Include parameters for TDLS peer (will check later) */
3982 err = nl80211_set_station_tdls(info, &params);
3983 if (err)
3984 return err;
3985
3986 params.vlan = get_vlan(info, rdev);
3987 if (IS_ERR(params.vlan))
3988 return PTR_ERR(params.vlan);
3989
a97f4424
JB		 3990 switch (dev->ieee80211_ptr->iftype) {
3991 case NL80211_IFTYPE_AP:
3992 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3993 case NL80211_IFTYPE_P2P_GO:
074ac8df 3994 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3995 case NL80211_IFTYPE_STATION:
267335d6 3996 case NL80211_IFTYPE_ADHOC:
a97f4424 3997 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3998 break;
3999 default:
77ee7c89
JB		 4000 err = -EOPNOTSUPP;
4001 goto out_put_vlan;
034d655e
JB		 4002 }
4003
77ee7c89 4004 /* driver will call cfg80211_check_station_change() */
e35e4d28 4005 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4006
77ee7c89 4007 out_put_vlan:
5727ef1b
JB		 4008 if (params.vlan)
4009 dev_put(params.vlan);
3b85875a 4010
5727ef1b
JB		 4011 return err;
4012}
4013
4014static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4015{
4c476991 4016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4017 int err;
4c476991 4018 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4019 struct station_parameters params;
4020 u8 *mac_addr = NULL;
4021
4022 memset(&params, 0, sizeof(params));
4023
984c311b
JB		 4024 if (!rdev->ops->add_station)
4025 return -EOPNOTSUPP;
4026
5727ef1b
JB		 4027 if (!info->attrs[NL80211_ATTR_MAC])
4028 return -EINVAL;
4029
5727ef1b
JB		 4030 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4031 return -EINVAL;
4032
4033 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4034 return -EINVAL;
4035
5e4b6f56
JM		 4036 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4037 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4038 return -EINVAL;
4039
5727ef1b
JB		 4040 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4041 params.supported_rates =
4042 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4043 params.supported_rates_len =
4044 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4045 params.listen_interval =
4046 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4047
3d124ea2 4048 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4049 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4050 else
4051 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4052 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4053 return -EINVAL;
51b50fbe 4054
9d62a986
JM		 4055 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4056 params.capability =
4057 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4058 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4059 }
4060
4061 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4062 params.ext_capab =
4063 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4064 params.ext_capab_len =
4065 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4066 }
4067
36aedc90
JM		 4068 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4069 params.ht_capa =
4070 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4071
f461be3e
MP		 4072 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4073 params.vht_capa =
4074 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4075
f8bacc21 4076 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4077 params.plink_action =
f8bacc21
JB		 4078 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4079 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4080 return -EINVAL;
4081 }
96b78dff 4082
ff276691
JB		 4083 err = nl80211_parse_sta_wme(info, &params);
4084 if (err)
4085 return err;
bdd90d5e 4086
bdd3ae3d 4087 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4088 return -EINVAL;
4089
77ee7c89
JB		 4090 /* When you run into this, adjust the code below for the new flag */
4091 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4092
bdd90d5e
JB		 4093 switch (dev->ieee80211_ptr->iftype) {
4094 case NL80211_IFTYPE_AP:
4095 case NL80211_IFTYPE_AP_VLAN:
4096 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4097 /* ignore WME attributes if iface/sta is not capable */
4098 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4099 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4100 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4101
bdd90d5e 4102 /* TDLS peers cannot be added */
3d124ea2
JM		 4103 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4104 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4105 return -EINVAL;
bdd90d5e
JB		 4106 /* but don't bother the driver with it */
4107 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4108
d582cffb
JB		 4109 /* allow authenticated/associated only if driver handles it */
4110 if (!(rdev->wiphy.features &
4111 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4112 params.sta_flags_mask &
4113 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4114 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4115 return -EINVAL;
4116
bdd90d5e
JB		 4117 /* must be last in here for error handling */
4118 params.vlan = get_vlan(info, rdev);
4119 if (IS_ERR(params.vlan))
4120 return PTR_ERR(params.vlan);
4121 break;
4122 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4123 /* ignore uAPSD data */
4124 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4125
d582cffb
JB		 4126 /* associated is disallowed */
4127 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4128 return -EINVAL;
bdd90d5e 4129 /* TDLS peers cannot be added */
3d124ea2
JM		 4130 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4131 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4132 return -EINVAL;
4133 break;
4134 case NL80211_IFTYPE_STATION:
93d08f0b 4135 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4136 /* ignore uAPSD data */
4137 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4138
77ee7c89
JB		 4139 /* these are disallowed */
4140 if (params.sta_flags_mask &
4141 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4142 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4143 return -EINVAL;
bdd90d5e
JB		 4144 /* Only TDLS peers can be added */
4145 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4146 return -EINVAL;
4147 /* Can only add if TDLS ... */
4148 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4149 return -EOPNOTSUPP;
4150 /* ... with external setup is supported */
4151 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4152 return -EOPNOTSUPP;
77ee7c89
JB		 4153 /*
4154 * Older wpa_supplicant versions always mark the TDLS peer
4155 * as authorized, but it shouldn't yet be.
4156 */
4157 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4158 break;
4159 default:
4160 return -EOPNOTSUPP;
c75786c9
EP		 4161 }
4162
bdd90d5e 4163 /* be aware of params.vlan when changing code here */
5727ef1b 4164
e35e4d28 4165 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4166
5727ef1b
JB		 4167 if (params.vlan)
4168 dev_put(params.vlan);
5727ef1b
JB		 4169 return err;
4170}
4171
4172static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4173{
4c476991
JB		 4174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4175 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4176 u8 *mac_addr = NULL;
4177
4178 if (info->attrs[NL80211_ATTR_MAC])
4179 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4180
e80cf853 4181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4183 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4184 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4185 return -EINVAL;
5727ef1b 4186
4c476991
JB		 4187 if (!rdev->ops->del_station)
4188 return -EOPNOTSUPP;
3b85875a 4189
e35e4d28 4190 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4191}
4192
15e47304 4193static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4194 int flags, struct net_device *dev,
4195 u8 *dst, u8 *next_hop,
4196 struct mpath_info *pinfo)
4197{
4198 void *hdr;
4199 struct nlattr *pinfoattr;
4200
15e47304 4201 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4202 if (!hdr)
4203 return -1;
4204
9360ffd1
DM		 4205 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4206 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4207 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4208 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4209 goto nla_put_failure;
f5ea9120 4210
2ec600d6
LCC		 4211 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4212 if (!pinfoattr)
4213 goto nla_put_failure;
9360ffd1
DM		 4214 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4215 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4216 pinfo->frame_qlen))
4217 goto nla_put_failure;
4218 if (((pinfo->filled & MPATH_INFO_SN) &&
4219 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4220 ((pinfo->filled & MPATH_INFO_METRIC) &&
4221 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4222 pinfo->metric)) ||
4223 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4224 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4225 pinfo->exptime)) ||
4226 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4227 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4228 pinfo->flags)) ||
4229 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4230 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4231 pinfo->discovery_timeout)) ||
4232 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4233 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4234 pinfo->discovery_retries)))
4235 goto nla_put_failure;
2ec600d6
LCC		 4236
4237 nla_nest_end(msg, pinfoattr);
4238
4239 return genlmsg_end(msg, hdr);
4240
4241 nla_put_failure:
bc3ed28c
TG		 4242 genlmsg_cancel(msg, hdr);
4243 return -EMSGSIZE;
2ec600d6
LCC		 4244}
4245
4246static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4247 struct netlink_callback *cb)
2ec600d6 4248{
2ec600d6
LCC		 4249 struct mpath_info pinfo;
4250 struct cfg80211_registered_device *dev;
97990a06 4251 struct wireless_dev *wdev;
2ec600d6
LCC		 4252 u8 dst[ETH_ALEN];
4253 u8 next_hop[ETH_ALEN];
97990a06 4254 int path_idx = cb->args[2];
2ec600d6 4255 int err;
2ec600d6 4256
97990a06 4257 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4258 if (err)
4259 return err;
bba95fef
JB		 4260
4261 if (!dev->ops->dump_mpath) {
eec60b03 4262 err = -EOPNOTSUPP;
bba95fef
JB		 4263 goto out_err;
4264 }
4265
97990a06 4266 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4267 err = -EOPNOTSUPP;
0448b5fc 4268 goto out_err;
eec60b03
JM		 4269 }
4270
bba95fef 4271 while (1) {
97990a06
JB		 4272 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4273 next_hop, &pinfo);
bba95fef 4274 if (err == -ENOENT)
2ec600d6 4275 break;
bba95fef 4276 if (err)
3b85875a 4277 goto out_err;
2ec600d6 4278
15e47304 4279 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4280 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4281 wdev->netdev, dst, next_hop,
bba95fef
JB		 4282 &pinfo) < 0)
4283 goto out;
2ec600d6 4284
bba95fef 4285 path_idx++;
2ec600d6 4286 }
2ec600d6 4287
2ec600d6 4288
bba95fef 4289 out:
97990a06 4290 cb->args[2] = path_idx;
bba95fef 4291 err = skb->len;
bba95fef 4292 out_err:
97990a06 4293 nl80211_finish_wdev_dump(dev);
bba95fef 4294 return err;
2ec600d6
LCC		 4295}
4296
4297static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4298{
4c476991 4299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4300 int err;
4c476991 4301 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4302 struct mpath_info pinfo;
4303 struct sk_buff *msg;
4304 u8 *dst = NULL;
4305 u8 next_hop[ETH_ALEN];
4306
4307 memset(&pinfo, 0, sizeof(pinfo));
4308
4309 if (!info->attrs[NL80211_ATTR_MAC])
4310 return -EINVAL;
4311
4312 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4313
4c476991
JB		 4314 if (!rdev->ops->get_mpath)
4315 return -EOPNOTSUPP;
2ec600d6 4316
4c476991
JB		 4317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4318 return -EOPNOTSUPP;
eec60b03 4319
e35e4d28 4320 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4321 if (err)
4c476991 4322 return err;
2ec600d6 4323
fd2120ca 4324 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4325 if (!msg)
4c476991 4326 return -ENOMEM;
2ec600d6 4327
15e47304 4328 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4329 dev, dst, next_hop, &pinfo) < 0) {
4330 nlmsg_free(msg);
4331 return -ENOBUFS;
4332 }
3b85875a 4333
4c476991 4334 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4335}
4336
4337static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4338{
4c476991
JB		 4339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4340 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4341 u8 *dst = NULL;
4342 u8 *next_hop = NULL;
4343
4344 if (!info->attrs[NL80211_ATTR_MAC])
4345 return -EINVAL;
4346
4347 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4348 return -EINVAL;
4349
4350 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4351 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4352
4c476991
JB		 4353 if (!rdev->ops->change_mpath)
4354 return -EOPNOTSUPP;
35a8efe1 4355
4c476991
JB		 4356 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4357 return -EOPNOTSUPP;
2ec600d6 4358
e35e4d28 4359 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4360}
4c476991 4361
2ec600d6
LCC		 4362static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4363{
4c476991
JB		 4364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4365 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4366 u8 *dst = NULL;
4367 u8 *next_hop = NULL;
4368
4369 if (!info->attrs[NL80211_ATTR_MAC])
4370 return -EINVAL;
4371
4372 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4373 return -EINVAL;
4374
4375 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4376 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4377
4c476991
JB		 4378 if (!rdev->ops->add_mpath)
4379 return -EOPNOTSUPP;
35a8efe1 4380
4c476991
JB		 4381 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4382 return -EOPNOTSUPP;
2ec600d6 4383
e35e4d28 4384 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4385}
4386
4387static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4388{
4c476991
JB		 4389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4390 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4391 u8 *dst = NULL;
4392
4393 if (info->attrs[NL80211_ATTR_MAC])
4394 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4395
4c476991
JB		 4396 if (!rdev->ops->del_mpath)
4397 return -EOPNOTSUPP;
3b85875a 4398
e35e4d28 4399 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4400}
4401
9f1ba906
JM		 4402static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4403{
4c476991
JB		 4404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4405 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4406 struct bss_parameters params;
4407
4408 memset(&params, 0, sizeof(params));
4409 /* default to not changing parameters */
4410 params.use_cts_prot = -1;
4411 params.use_short_preamble = -1;
4412 params.use_short_slot_time = -1;
fd8aaaf3 4413 params.ap_isolate = -1;
50b12f59 4414 params.ht_opmode = -1;
53cabad7
JB		 4415 params.p2p_ctwindow = -1;
4416 params.p2p_opp_ps = -1;
9f1ba906
JM		 4417
4418 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4419 params.use_cts_prot =
4420 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4421 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4422 params.use_short_preamble =
4423 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4424 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4425 params.use_short_slot_time =
4426 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4427 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4428 params.basic_rates =
4429 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4430 params.basic_rates_len =
4431 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4432 }
fd8aaaf3
FF		 4433 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4434 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4435 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4436 params.ht_opmode =
4437 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4438
53cabad7
JB		 4439 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4440 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4441 return -EINVAL;
4442 params.p2p_ctwindow =
4443 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4444 if (params.p2p_ctwindow < 0)
4445 return -EINVAL;
4446 if (params.p2p_ctwindow != 0 &&
4447 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4448 return -EINVAL;
4449 }
4450
4451 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4452 u8 tmp;
4453
4454 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4455 return -EINVAL;
4456 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4457 if (tmp > 1)
4458 return -EINVAL;
4459 params.p2p_opp_ps = tmp;
4460 if (params.p2p_opp_ps &&
4461 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4462 return -EINVAL;
4463 }
4464
4c476991
JB		 4465 if (!rdev->ops->change_bss)
4466 return -EOPNOTSUPP;
9f1ba906 4467
074ac8df 4468 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4469 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4470 return -EOPNOTSUPP;
3b85875a 4471
e35e4d28 4472 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4473}
4474
b54452b0 4475static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4476 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4477 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4478 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4479 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4480 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4481 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4482};
4483
4484static int parse_reg_rule(struct nlattr *tb[],
4485 struct ieee80211_reg_rule *reg_rule)
4486{
4487 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4488 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4489
4490 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4491 return -EINVAL;
4492 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4493 return -EINVAL;
4494 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4495 return -EINVAL;
4496 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4497 return -EINVAL;
4498 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4499 return -EINVAL;
4500
4501 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4502
4503 freq_range->start_freq_khz =
4504 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4505 freq_range->end_freq_khz =
4506 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4507 freq_range->max_bandwidth_khz =
4508 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4509
4510 power_rule->max_eirp =
4511 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4512
4513 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4514 power_rule->max_antenna_gain =
4515 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4516
4517 return 0;
4518}
4519
4520static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4521{
4522 int r;
4523 char *data = NULL;
57b5ce07 4524 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4525
80778f18
LR		 4526 /*
4527 * You should only get this when cfg80211 hasn't yet initialized
4528 * completely when built-in to the kernel right between the time
4529 * window between nl80211_init() and regulatory_init(), if that is
4530 * even possible.
4531 */
458f4f9e 4532 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4533 return -EINPROGRESS;
80778f18 4534
fe33eb39
LR		 4535 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4536 return -EINVAL;
b2e1b302
LR		 4537
4538 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4539
57b5ce07
LR		 4540 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4541 user_reg_hint_type =
4542 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4543 else
4544 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4545
4546 switch (user_reg_hint_type) {
4547 case NL80211_USER_REG_HINT_USER:
4548 case NL80211_USER_REG_HINT_CELL_BASE:
4549 break;
4550 default:
4551 return -EINVAL;
4552 }
4553
4554 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4555
b2e1b302
LR		 4556 return r;
4557}
4558
24bdd9f4 4559static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4560 struct genl_info *info)
93da9cc1 4561{
4c476991 4562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4563 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4564 struct wireless_dev *wdev = dev->ieee80211_ptr;
4565 struct mesh_config cur_params;
4566 int err = 0;
93da9cc1 4567 void *hdr;
4568 struct nlattr *pinfoattr;
4569 struct sk_buff *msg;
4570
29cbe68c
JB		 4571 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4572 return -EOPNOTSUPP;
4573
24bdd9f4 4574 if (!rdev->ops->get_mesh_config)
4c476991 4575 return -EOPNOTSUPP;
f3f92586 4576
29cbe68c
JB		 4577 wdev_lock(wdev);
4578 /* If not connected, get default parameters */
4579 if (!wdev->mesh_id_len)
4580 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4581 else
e35e4d28 4582 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4583 wdev_unlock(wdev);
4584
93da9cc1 4585 if (err)
4c476991 4586 return err;
93da9cc1 4587
4588 /* Draw up a netlink message to send back */
fd2120ca 4589 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4590 if (!msg)
4591 return -ENOMEM;
15e47304 4592 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4593 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4594 if (!hdr)
efe1cf0c 4595 goto out;
24bdd9f4 4596 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4597 if (!pinfoattr)
4598 goto nla_put_failure;
9360ffd1
DM		 4599 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4600 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4601 cur_params.dot11MeshRetryTimeout) ||
4602 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4603 cur_params.dot11MeshConfirmTimeout) ||
4604 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4605 cur_params.dot11MeshHoldingTimeout) ||
4606 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4607 cur_params.dot11MeshMaxPeerLinks) ||
4608 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4609 cur_params.dot11MeshMaxRetries) ||
4610 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4611 cur_params.dot11MeshTTL) ||
4612 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4613 cur_params.element_ttl) ||
4614 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4615 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4616 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4617 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4618 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4619 cur_params.dot11MeshHWMPmaxPREQretries) ||
4620 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4621 cur_params.path_refresh_time) ||
4622 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4623 cur_params.min_discovery_timeout) ||
4624 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4625 cur_params.dot11MeshHWMPactivePathTimeout) ||
4626 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4627 cur_params.dot11MeshHWMPpreqMinInterval) ||
4628 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4629 cur_params.dot11MeshHWMPperrMinInterval) ||
4630 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4631 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4632 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4633 cur_params.dot11MeshHWMPRootMode) ||
4634 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4635 cur_params.dot11MeshHWMPRannInterval) ||
4636 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4637 cur_params.dot11MeshGateAnnouncementProtocol) ||
4638 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4639 cur_params.dot11MeshForwarding) ||
4640 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4641 cur_params.rssi_threshold) ||
4642 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4643 cur_params.ht_opmode) ||
4644 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4645 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4646 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4647 cur_params.dot11MeshHWMProotInterval) ||
4648 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4649 cur_params.dot11MeshHWMPconfirmationInterval) ||
4650 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4651 cur_params.power_mode) ||
4652 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4653 cur_params.dot11MeshAwakeWindowDuration) ||
4654 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4655 cur_params.plink_timeout))
9360ffd1 4656 goto nla_put_failure;
93da9cc1 4657 nla_nest_end(msg, pinfoattr);
4658 genlmsg_end(msg, hdr);
4c476991 4659 return genlmsg_reply(msg, info);
93da9cc1 4660
3b85875a 4661 nla_put_failure:
93da9cc1 4662 genlmsg_cancel(msg, hdr);
efe1cf0c 4663 out:
d080e275 4664 nlmsg_free(msg);
4c476991 4665 return -ENOBUFS;
93da9cc1 4666}
4667
b54452b0 4668static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4669 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4670 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4671 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4672 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4673 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4674 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4675 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4676 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4677 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4678 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4679 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4680 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4681 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4682 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4683 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4684 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4685 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4686 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4687 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4688 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4689 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4690 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4691 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4692 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4693 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4694 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4695 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4696 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4697};
4698
c80d545d
JC		 4699static const struct nla_policy
4700 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4701 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4702 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4703 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4704 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4705 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4706 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4707 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4708 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4709 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4710};
4711
24bdd9f4 4712static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4713 struct mesh_config *cfg,
4714 u32 *mask_out)
93da9cc1 4715{
93da9cc1 4716 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4717 u32 mask = 0;
93da9cc1 4718
ea54fba2
MP		 4719#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4720do { \
4721 if (tb[attr]) { \
4722 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4723 return -EINVAL; \
4724 cfg->param = fn(tb[attr]); \
4725 mask |= (1 << (attr - 1)); \
4726 } \
4727} while (0)
bd90fdcc
JB		 4728
4729
24bdd9f4 4730 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4731 return -EINVAL;
4732 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4733 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4734 nl80211_meshconf_params_policy))
93da9cc1 4735 return -EINVAL;
4736
93da9cc1 4737 /* This makes sure that there aren't more than 32 mesh config
4738 * parameters (otherwise our bitfield scheme would not work.) */
4739 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4740
4741 /* Fill in the params struct */
ea54fba2 4742 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4743 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4744 nla_get_u16);
ea54fba2 4745 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4746 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4747 nla_get_u16);
ea54fba2 4748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4749 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4750 nla_get_u16);
ea54fba2 4751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4752 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4753 nla_get_u16);
ea54fba2 4754 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4755 mask, NL80211_MESHCONF_MAX_RETRIES,
4756 nla_get_u8);
ea54fba2 4757 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4758 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4760 mask, NL80211_MESHCONF_ELEMENT_TTL,
4761 nla_get_u8);
ea54fba2 4762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4763 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4764 nla_get_u8);
ea54fba2
MP		 4765 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4766 1, 255, mask,
a4f606ea
CYY		 4767 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4768 nla_get_u32);
ea54fba2 4769 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4770 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4771 nla_get_u8);
ea54fba2 4772 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4773 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4774 nla_get_u32);
ea54fba2 4775 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4776 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4777 nla_get_u16);
ea54fba2
MP		 4778 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4779 1, 65535, mask,
a4f606ea
CYY		 4780 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4781 nla_get_u32);
93da9cc1 4782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4783 1, 65535, mask,
4784 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4785 nla_get_u16);
dca7e943 4786 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4787 1, 65535, mask,
4788 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4789 nla_get_u16);
93da9cc1 4790 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4791 dot11MeshHWMPnetDiameterTraversalTime,
4792 1, 65535, mask,
a4f606ea
CYY		 4793 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4794 nla_get_u16);
ea54fba2
MP		 4795 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4796 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4797 nla_get_u8);
4798 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4799 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4800 nla_get_u16);
63c5723b 4801 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4802 dot11MeshGateAnnouncementProtocol, 0, 1,
4803 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4804 nla_get_u8);
ea54fba2 4805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4806 mask, NL80211_MESHCONF_FORWARDING,
4807 nla_get_u8);
ea54fba2 4808 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4809 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4810 nla_get_u32);
ea54fba2 4811 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4812 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4813 nla_get_u16);
4814 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4815 1, 65535, mask,
ac1073a6
CYY		 4816 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4817 nla_get_u32);
ea54fba2 4818 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4819 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4820 nla_get_u16);
4821 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4822 dot11MeshHWMPconfirmationInterval,
4823 1, 65535, mask,
728b19e5 4824 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4825 nla_get_u16);
3b1c5a53
MP		 4826 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4827 NL80211_MESH_POWER_ACTIVE,
4828 NL80211_MESH_POWER_MAX,
4829 mask, NL80211_MESHCONF_POWER_MODE,
4830 nla_get_u32);
4831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4832 0, 65535, mask,
4833 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4835 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4836 nla_get_u32);
bd90fdcc
JB		 4837 if (mask_out)
4838 *mask_out = mask;
c80d545d 4839
bd90fdcc
JB		 4840 return 0;
4841
4842#undef FILL_IN_MESH_PARAM_IF_SET
4843}
4844
c80d545d
JC		 4845static int nl80211_parse_mesh_setup(struct genl_info *info,
4846 struct mesh_setup *setup)
4847{
bb2798d4 4848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4849 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4850
4851 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4852 return -EINVAL;
4853 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4854 info->attrs[NL80211_ATTR_MESH_SETUP],
4855 nl80211_mesh_setup_params_policy))
4856 return -EINVAL;
4857
d299a1f2
JC		 4858 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4859 setup->sync_method =
4860 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4861 IEEE80211_SYNC_METHOD_VENDOR :
4862 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4863
c80d545d
JC		 4864 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4865 setup->path_sel_proto =
4866 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4867 IEEE80211_PATH_PROTOCOL_VENDOR :
4868 IEEE80211_PATH_PROTOCOL_HWMP;
4869
4870 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4871 setup->path_metric =
4872 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4873 IEEE80211_PATH_METRIC_VENDOR :
4874 IEEE80211_PATH_METRIC_AIRTIME;
4875
581a8b0f
JC		 4876
4877 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4878 struct nlattr *ieattr =
581a8b0f 4879 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4880 if (!is_valid_ie_attr(ieattr))
4881 return -EINVAL;
581a8b0f
JC		 4882 setup->ie = nla_data(ieattr);
4883 setup->ie_len = nla_len(ieattr);
c80d545d 4884 }
bb2798d4
TP		 4885 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4886 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4887 return -EINVAL;
4888 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4889 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4890 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4891 if (setup->is_secure)
4892 setup->user_mpm = true;
c80d545d 4893
6e16d90b
CT		 4894 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4895 if (!setup->user_mpm)
4896 return -EINVAL;
4897 setup->auth_id =
4898 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4899 }
4900
c80d545d
JC		 4901 return 0;
4902}
4903
24bdd9f4 4904static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4905 struct genl_info *info)
bd90fdcc
JB		 4906{
4907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4908 struct net_device *dev = info->user_ptr[1];
29cbe68c 4909 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4910 struct mesh_config cfg;
4911 u32 mask;
4912 int err;
4913
29cbe68c
JB		 4914 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4915 return -EOPNOTSUPP;
4916
24bdd9f4 4917 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4918 return -EOPNOTSUPP;
4919
24bdd9f4 4920 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4921 if (err)
4922 return err;
4923
29cbe68c
JB		 4924 wdev_lock(wdev);
4925 if (!wdev->mesh_id_len)
4926 err = -ENOLINK;
4927
4928 if (!err)
e35e4d28 4929 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4930
4931 wdev_unlock(wdev);
4932
4933 return err;
93da9cc1 4934}
4935
f130347c
LR		 4936static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4937{
458f4f9e 4938 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4939 struct sk_buff *msg;
4940 void *hdr = NULL;
4941 struct nlattr *nl_reg_rules;
4942 unsigned int i;
f130347c
LR		 4943
4944 if (!cfg80211_regdomain)
5fe231e8 4945 return -EINVAL;
f130347c 4946
fd2120ca 4947 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4948 if (!msg)
4949 return -ENOBUFS;
f130347c 4950
15e47304 4951 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4952 NL80211_CMD_GET_REG);
4953 if (!hdr)
efe1cf0c 4954 goto put_failure;
f130347c 4955
57b5ce07
LR		 4956 if (reg_last_request_cell_base() &&
4957 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4958 NL80211_USER_REG_HINT_CELL_BASE))
4959 goto nla_put_failure;
4960
458f4f9e
JB		 4961 rcu_read_lock();
4962 regdom = rcu_dereference(cfg80211_regdomain);
4963
4964 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4965 (regdom->dfs_region &&
4966 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4967 goto nla_put_failure_rcu;
4968
f130347c
LR		 4969 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4970 if (!nl_reg_rules)
458f4f9e 4971 goto nla_put_failure_rcu;
f130347c 4972
458f4f9e 4973 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4974 struct nlattr *nl_reg_rule;
4975 const struct ieee80211_reg_rule *reg_rule;
4976 const struct ieee80211_freq_range *freq_range;
4977 const struct ieee80211_power_rule *power_rule;
4978
458f4f9e 4979 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4980 freq_range = &reg_rule->freq_range;
4981 power_rule = &reg_rule->power_rule;
4982
4983 nl_reg_rule = nla_nest_start(msg, i);
4984 if (!nl_reg_rule)
458f4f9e 4985 goto nla_put_failure_rcu;
f130347c 4986
9360ffd1
DM		 4987 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4988 reg_rule->flags) ||
4989 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4990 freq_range->start_freq_khz) ||
4991 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4992 freq_range->end_freq_khz) ||
4993 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4994 freq_range->max_bandwidth_khz) ||
4995 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4996 power_rule->max_antenna_gain) ||
4997 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4998 power_rule->max_eirp))
458f4f9e 4999 goto nla_put_failure_rcu;
f130347c
LR		 5000
5001 nla_nest_end(msg, nl_reg_rule);
5002 }
458f4f9e 5003 rcu_read_unlock();
f130347c
LR		 5004
5005 nla_nest_end(msg, nl_reg_rules);
5006
5007 genlmsg_end(msg, hdr);
5fe231e8 5008 return genlmsg_reply(msg, info);
f130347c 5009
458f4f9e
JB		 5010nla_put_failure_rcu:
5011 rcu_read_unlock();
f130347c
LR		 5012nla_put_failure:
5013 genlmsg_cancel(msg, hdr);
efe1cf0c 5014put_failure:
d080e275 5015 nlmsg_free(msg);
5fe231e8 5016 return -EMSGSIZE;
f130347c
LR		 5017}
5018
b2e1b302
LR		 5019static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5020{
5021 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5022 struct nlattr *nl_reg_rule;
5023 char *alpha2 = NULL;
5024 int rem_reg_rules = 0, r = 0;
5025 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 5026 u8 dfs_region = 0;
b2e1b302
LR		 5027 struct ieee80211_regdomain *rd = NULL;
5028
5029 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5030 return -EINVAL;
5031
5032 if (!info->attrs[NL80211_ATTR_REG_RULES])
5033 return -EINVAL;
5034
5035 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5036
8b60b078
LR		 5037 if (info->attrs[NL80211_ATTR_DFS_REGION])
5038 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5039
b2e1b302 5040 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5041 rem_reg_rules) {
b2e1b302
LR		 5042 num_rules++;
5043 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5044 return -EINVAL;
b2e1b302
LR		 5045 }
5046
b2e1b302 5047 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5048 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5049
5050 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5051 if (!rd)
5052 return -ENOMEM;
b2e1b302
LR		 5053
5054 rd->n_reg_rules = num_rules;
5055 rd->alpha2[0] = alpha2[0];
5056 rd->alpha2[1] = alpha2[1];
5057
8b60b078
LR		 5058 /*
5059 * Disable DFS master mode if the DFS region was
5060 * not supported or known on this kernel.
5061 */
5062 if (reg_supported_dfs_region(dfs_region))
5063 rd->dfs_region = dfs_region;
5064
b2e1b302 5065 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5066 rem_reg_rules) {
b2e1b302 5067 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5068 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5069 reg_rule_policy);
b2e1b302
LR		 5070 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5071 if (r)
5072 goto bad_reg;
5073
5074 rule_idx++;
5075
d0e18f83
LR		 5076 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5077 r = -EINVAL;
b2e1b302 5078 goto bad_reg;
d0e18f83 5079 }
b2e1b302
LR		 5080 }
5081
b2e1b302 5082 r = set_regdom(rd);
6913b49a 5083 /* set_regdom took ownership */
1a919318 5084 rd = NULL;
b2e1b302 5085
d2372b31 5086 bad_reg:
b2e1b302 5087 kfree(rd);
d0e18f83 5088 return r;
b2e1b302
LR		 5089}
5090
83f5e2cf
JB		 5091static int validate_scan_freqs(struct nlattr *freqs)
5092{
5093 struct nlattr *attr1, *attr2;
5094 int n_channels = 0, tmp1, tmp2;
5095
5096 nla_for_each_nested(attr1, freqs, tmp1) {
5097 n_channels++;
5098 /*
5099 * Some hardware has a limited channel list for
5100 * scanning, and it is pretty much nonsensical
5101 * to scan for a channel twice, so disallow that
5102 * and don't require drivers to check that the
5103 * channel list they get isn't longer than what
5104 * they can scan, as long as they can scan all
5105 * the channels they registered at once.
5106 */
5107 nla_for_each_nested(attr2, freqs, tmp2)
5108 if (attr1 != attr2 &&
5109 nla_get_u32(attr1) == nla_get_u32(attr2))
5110 return 0;
5111 }
5112
5113 return n_channels;
5114}
5115
2a519311
JB		 5116static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5117{
4c476991 5118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5119 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5120 struct cfg80211_scan_request *request;
2a519311
JB		 5121 struct nlattr *attr;
5122 struct wiphy *wiphy;
83f5e2cf 5123 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5124 size_t ie_len;
2a519311 5125
f4a11bb0
JB		 5126 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5127 return -EINVAL;
5128
79c97e97 5129 wiphy = &rdev->wiphy;
2a519311 5130
4c476991
JB		 5131 if (!rdev->ops->scan)
5132 return -EOPNOTSUPP;
2a519311 5133
f9f47529
JB		 5134 if (rdev->scan_req) {
5135 err = -EBUSY;
5136 goto unlock;
5137 }
2a519311
JB		 5138
5139 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5140 n_channels = validate_scan_freqs(
5141 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5142 if (!n_channels) {
5143 err = -EINVAL;
5144 goto unlock;
5145 }
2a519311 5146 } else {
34850ab2 5147 enum ieee80211_band band;
83f5e2cf
JB		 5148 n_channels = 0;
5149
2a519311
JB		 5150 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5151 if (wiphy->bands[band])
5152 n_channels += wiphy->bands[band]->n_channels;
5153 }
5154
5155 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5156 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5157 n_ssids++;
5158
f9f47529
JB		 5159 if (n_ssids > wiphy->max_scan_ssids) {
5160 err = -EINVAL;
5161 goto unlock;
5162 }
2a519311 5163
70692ad2
JM		 5164 if (info->attrs[NL80211_ATTR_IE])
5165 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5166 else
5167 ie_len = 0;
5168
f9f47529
JB		 5169 if (ie_len > wiphy->max_scan_ie_len) {
5170 err = -EINVAL;
5171 goto unlock;
5172 }
18a83659 5173
2a519311 5174 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5175 + sizeof(*request->ssids) * n_ssids
5176 + sizeof(*request->channels) * n_channels
70692ad2 5177 + ie_len, GFP_KERNEL);
f9f47529
JB		 5178 if (!request) {
5179 err = -ENOMEM;
5180 goto unlock;
5181 }
2a519311 5182
2a519311 5183 if (n_ssids)
5ba63533 5184 request->ssids = (void *)&request->channels[n_channels];
2a519311 5185 request->n_ssids = n_ssids;
70692ad2
JM		 5186 if (ie_len) {
5187 if (request->ssids)
5188 request->ie = (void *)(request->ssids + n_ssids);
5189 else
5190 request->ie = (void *)(request->channels + n_channels);
5191 }
2a519311 5192
584991dc 5193 i = 0;
2a519311
JB		 5194 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5195 /* user specified, bail out if channel not found */
2a519311 5196 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5197 struct ieee80211_channel *chan;
5198
5199 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5200
5201 if (!chan) {
2a519311
JB		 5202 err = -EINVAL;
5203 goto out_free;
5204 }
584991dc
JB		 5205
5206 /* ignore disabled channels */
5207 if (chan->flags & IEEE80211_CHAN_DISABLED)
5208 continue;
5209
5210 request->channels[i] = chan;
2a519311
JB		 5211 i++;
5212 }
5213 } else {
34850ab2
JB		 5214 enum ieee80211_band band;
5215
2a519311 5216 /* all channels */
2a519311
JB		 5217 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5218 int j;
5219 if (!wiphy->bands[band])
5220 continue;
5221 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5222 struct ieee80211_channel *chan;
5223
5224 chan = &wiphy->bands[band]->channels[j];
5225
5226 if (chan->flags & IEEE80211_CHAN_DISABLED)
5227 continue;
5228
5229 request->channels[i] = chan;
2a519311
JB		 5230 i++;
5231 }
5232 }
5233 }
5234
584991dc
JB		 5235 if (!i) {
5236 err = -EINVAL;
5237 goto out_free;
5238 }
5239
5240 request->n_channels = i;
5241
2a519311
JB		 5242 i = 0;
5243 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5244 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5245 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5246 err = -EINVAL;
5247 goto out_free;
5248 }
57a27e1d 5249 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5250 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5251 i++;
5252 }
5253 }
5254
70692ad2
JM		 5255 if (info->attrs[NL80211_ATTR_IE]) {
5256 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5257 memcpy((void *)request->ie,
5258 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5259 request->ie_len);
5260 }
5261
34850ab2 5262 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5263 if (wiphy->bands[i])
5264 request->rates[i] =
5265 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5266
5267 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5268 nla_for_each_nested(attr,
5269 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5270 tmp) {
5271 enum ieee80211_band band = nla_type(attr);
5272
84404623 5273 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5274 err = -EINVAL;
5275 goto out_free;
5276 }
5277 err = ieee80211_get_ratemask(wiphy->bands[band],
5278 nla_data(attr),
5279 nla_len(attr),
5280 &request->rates[band]);
5281 if (err)
5282 goto out_free;
5283 }
5284 }
5285
46856bbf 5286 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5287 request->flags = nla_get_u32(
5288 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5289 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5290 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5291 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5292 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5293 err = -EOPNOTSUPP;
5294 goto out_free;
5295 }
5296 }
ed473771 5297
e9f935e3
RM		 5298 request->no_cck =
5299 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5300
fd014284 5301 request->wdev = wdev;
79c97e97 5302 request->wiphy = &rdev->wiphy;
15d6030b 5303 request->scan_start = jiffies;
2a519311 5304
79c97e97 5305 rdev->scan_req = request;
e35e4d28 5306 err = rdev_scan(rdev, request);
2a519311 5307
463d0183 5308 if (!err) {
fd014284
JB		 5309 nl80211_send_scan_start(rdev, wdev);
5310 if (wdev->netdev)
5311 dev_hold(wdev->netdev);
4c476991 5312 } else {
2a519311 5313 out_free:
79c97e97 5314 rdev->scan_req = NULL;
2a519311
JB		 5315 kfree(request);
5316 }
3b85875a 5317
f9f47529 5318 unlock:
2a519311
JB		 5319 return err;
5320}
5321
807f8a8c
LC		 5322static int nl80211_start_sched_scan(struct sk_buff *skb,
5323 struct genl_info *info)
5324{
5325 struct cfg80211_sched_scan_request *request;
5326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5327 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5328 struct nlattr *attr;
5329 struct wiphy *wiphy;
a1f1c21c 5330 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5331 u32 interval;
807f8a8c
LC		 5332 enum ieee80211_band band;
5333 size_t ie_len;
a1f1c21c 5334 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5335
5336 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5337 !rdev->ops->sched_scan_start)
5338 return -EOPNOTSUPP;
5339
5340 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5341 return -EINVAL;
5342
bbe6ad6d
LC		 5343 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5344 return -EINVAL;
5345
5346 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5347 if (interval == 0)
5348 return -EINVAL;
5349
807f8a8c
LC		 5350 wiphy = &rdev->wiphy;
5351
5352 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5353 n_channels = validate_scan_freqs(
5354 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5355 if (!n_channels)
5356 return -EINVAL;
5357 } else {
5358 n_channels = 0;
5359
5360 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5361 if (wiphy->bands[band])
5362 n_channels += wiphy->bands[band]->n_channels;
5363 }
5364
5365 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5366 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5367 tmp)
5368 n_ssids++;
5369
93b6aa69 5370 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5371 return -EINVAL;
5372
a1f1c21c
LC		 5373 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5374 nla_for_each_nested(attr,
5375 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5376 tmp)
5377 n_match_sets++;
5378
5379 if (n_match_sets > wiphy->max_match_sets)
5380 return -EINVAL;
5381
807f8a8c
LC		 5382 if (info->attrs[NL80211_ATTR_IE])
5383 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5384 else
5385 ie_len = 0;
5386
5a865bad 5387 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5388 return -EINVAL;
5389
c10841ca
LC		 5390 if (rdev->sched_scan_req) {
5391 err = -EINPROGRESS;
5392 goto out;
5393 }
5394
807f8a8c 5395 request = kzalloc(sizeof(*request)
a2cd43c5 5396 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5397 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5398 + sizeof(*request->channels) * n_channels
807f8a8c 5399 + ie_len, GFP_KERNEL);
c10841ca
LC		 5400 if (!request) {
5401 err = -ENOMEM;
5402 goto out;
5403 }
807f8a8c
LC		 5404
5405 if (n_ssids)
5406 request->ssids = (void *)&request->channels[n_channels];
5407 request->n_ssids = n_ssids;
5408 if (ie_len) {
5409 if (request->ssids)
5410 request->ie = (void *)(request->ssids + n_ssids);
5411 else
5412 request->ie = (void *)(request->channels + n_channels);
5413 }
5414
a1f1c21c
LC		 5415 if (n_match_sets) {
5416 if (request->ie)
5417 request->match_sets = (void *)(request->ie + ie_len);
5418 else if (request->ssids)
5419 request->match_sets =
5420 (void *)(request->ssids + n_ssids);
5421 else
5422 request->match_sets =
5423 (void *)(request->channels + n_channels);
5424 }
5425 request->n_match_sets = n_match_sets;
5426
807f8a8c
LC		 5427 i = 0;
5428 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5429 /* user specified, bail out if channel not found */
5430 nla_for_each_nested(attr,
5431 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5432 tmp) {
5433 struct ieee80211_channel *chan;
5434
5435 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5436
5437 if (!chan) {
5438 err = -EINVAL;
5439 goto out_free;
5440 }
5441
5442 /* ignore disabled channels */
5443 if (chan->flags & IEEE80211_CHAN_DISABLED)
5444 continue;
5445
5446 request->channels[i] = chan;
5447 i++;
5448 }
5449 } else {
5450 /* all channels */
5451 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5452 int j;
5453 if (!wiphy->bands[band])
5454 continue;
5455 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5456 struct ieee80211_channel *chan;
5457
5458 chan = &wiphy->bands[band]->channels[j];
5459
5460 if (chan->flags & IEEE80211_CHAN_DISABLED)
5461 continue;
5462
5463 request->channels[i] = chan;
5464 i++;
5465 }
5466 }
5467 }
5468
5469 if (!i) {
5470 err = -EINVAL;
5471 goto out_free;
5472 }
5473
5474 request->n_channels = i;
5475
5476 i = 0;
5477 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5478 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5479 tmp) {
57a27e1d 5480 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5481 err = -EINVAL;
5482 goto out_free;
5483 }
57a27e1d 5484 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5485 memcpy(request->ssids[i].ssid, nla_data(attr),
5486 nla_len(attr));
807f8a8c
LC		 5487 i++;
5488 }
5489 }
5490
a1f1c21c
LC		 5491 i = 0;
5492 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5493 nla_for_each_nested(attr,
5494 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5495 tmp) {
88e920b4 5496 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5497
5498 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5499 nla_data(attr), nla_len(attr),
5500 nl80211_match_policy);
4a4ab0d7 5501 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5502 if (ssid) {
5503 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5504 err = -EINVAL;
5505 goto out_free;
5506 }
5507 memcpy(request->match_sets[i].ssid.ssid,
5508 nla_data(ssid), nla_len(ssid));
5509 request->match_sets[i].ssid.ssid_len =
5510 nla_len(ssid);
5511 }
88e920b4
TP		 5512 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5513 if (rssi)
5514 request->rssi_thold = nla_get_u32(rssi);
5515 else
5516 request->rssi_thold =
5517 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5518 i++;
5519 }
5520 }
5521
807f8a8c
LC		 5522 if (info->attrs[NL80211_ATTR_IE]) {
5523 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5524 memcpy((void *)request->ie,
5525 nla_data(info->attrs[NL80211_ATTR_IE]),
5526 request->ie_len);
5527 }
5528
46856bbf 5529 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5530 request->flags = nla_get_u32(
5531 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5532 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5533 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5534 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5535 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5536 err = -EOPNOTSUPP;
5537 goto out_free;
5538 }
5539 }
ed473771 5540
807f8a8c
LC		 5541 request->dev = dev;
5542 request->wiphy = &rdev->wiphy;
bbe6ad6d 5543 request->interval = interval;
15d6030b 5544 request->scan_start = jiffies;
807f8a8c 5545
e35e4d28 5546 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5547 if (!err) {
5548 rdev->sched_scan_req = request;
5549 nl80211_send_sched_scan(rdev, dev,
5550 NL80211_CMD_START_SCHED_SCAN);
5551 goto out;
5552 }
5553
5554out_free:
5555 kfree(request);
5556out:
5557 return err;
5558}
5559
5560static int nl80211_stop_sched_scan(struct sk_buff *skb,
5561 struct genl_info *info)
5562{
5563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5564
5565 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5566 !rdev->ops->sched_scan_stop)
5567 return -EOPNOTSUPP;
5568
5fe231e8 5569 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5570}
5571
04f39047
SW		 5572static int nl80211_start_radar_detection(struct sk_buff *skb,
5573 struct genl_info *info)
5574{
5575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5576 struct net_device *dev = info->user_ptr[1];
5577 struct wireless_dev *wdev = dev->ieee80211_ptr;
5578 struct cfg80211_chan_def chandef;
5579 int err;
5580
5581 err = nl80211_parse_chandef(rdev, info, &chandef);
5582 if (err)
5583 return err;
5584
5585 if (wdev->cac_started)
5586 return -EBUSY;
5587
5588 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5589 if (err < 0)
5590 return err;
5591
5592 if (err == 0)
5593 return -EINVAL;
5594
5595 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5596 return -EINVAL;
5597
5598 if (!rdev->ops->start_radar_detection)
5599 return -EOPNOTSUPP;
5600
04f39047
SW		 5601 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5602 chandef.chan, CHAN_MODE_SHARED,
5603 BIT(chandef.width));
5604 if (err)
5fe231e8 5605 return err;
04f39047
SW		 5606
5607 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5608 if (!err) {
5609 wdev->channel = chandef.chan;
5610 wdev->cac_started = true;
5611 wdev->cac_start_time = jiffies;
5612 }
04f39047
SW		 5613 return err;
5614}
5615
9720bb3a
JB		 5616static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5617 u32 seq, int flags,
2a519311 5618 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5619 struct wireless_dev *wdev,
5620 struct cfg80211_internal_bss *intbss)
2a519311 5621{
48ab905d 5622 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5623 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5624 void *hdr;
5625 struct nlattr *bss;
8cef2c9d 5626 bool tsf = false;
48ab905d
JB		 5627
5628 ASSERT_WDEV_LOCK(wdev);
2a519311 5629
15e47304 5630 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5631 NL80211_CMD_NEW_SCAN_RESULTS);
5632 if (!hdr)
5633 return -1;
5634
9720bb3a
JB		 5635 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5636
97990a06
JB		 5637 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5638 goto nla_put_failure;
5639 if (wdev->netdev &&
9360ffd1
DM		 5640 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5641 goto nla_put_failure;
97990a06
JB		 5642 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5643 goto nla_put_failure;
2a519311
JB		 5644
5645 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5646 if (!bss)
5647 goto nla_put_failure;
9360ffd1 5648 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5649 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5650 goto nla_put_failure;
9caf0364
JB		 5651
5652 rcu_read_lock();
5653 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5654 if (ies) {
5655 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5656 goto fail_unlock_rcu;
5657 tsf = true;
5658 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5659 ies->len, ies->data))
5660 goto fail_unlock_rcu;
9caf0364
JB		 5661 }
5662 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5663 if (ies) {
5664 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5665 goto fail_unlock_rcu;
5666 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5667 ies->len, ies->data))
5668 goto fail_unlock_rcu;
9caf0364
JB		 5669 }
5670 rcu_read_unlock();
5671
9360ffd1
DM		 5672 if (res->beacon_interval &&
5673 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5674 goto nla_put_failure;
5675 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5676 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5677 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5678 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5679 jiffies_to_msecs(jiffies - intbss->ts)))
5680 goto nla_put_failure;
2a519311 5681
77965c97 5682 switch (rdev->wiphy.signal_type) {
2a519311 5683 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5684 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5685 goto nla_put_failure;
2a519311
JB		 5686 break;
5687 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5688 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5689 goto nla_put_failure;
2a519311
JB		 5690 break;
5691 default:
5692 break;
5693 }
5694
48ab905d 5695 switch (wdev->iftype) {
074ac8df 5696 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5697 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5698 if (intbss == wdev->current_bss &&
5699 nla_put_u32(msg, NL80211_BSS_STATUS,
5700 NL80211_BSS_STATUS_ASSOCIATED))
5701 goto nla_put_failure;
48ab905d
JB		 5702 break;
5703 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5704 if (intbss == wdev->current_bss &&
5705 nla_put_u32(msg, NL80211_BSS_STATUS,
5706 NL80211_BSS_STATUS_IBSS_JOINED))
5707 goto nla_put_failure;
48ab905d
JB		 5708 break;
5709 default:
5710 break;
5711 }
5712
2a519311
JB		 5713 nla_nest_end(msg, bss);
5714
5715 return genlmsg_end(msg, hdr);
5716
8cef2c9d
JB		 5717 fail_unlock_rcu:
5718 rcu_read_unlock();
2a519311
JB		 5719 nla_put_failure:
5720 genlmsg_cancel(msg, hdr);
5721 return -EMSGSIZE;
5722}
5723
97990a06 5724static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5725{
48ab905d 5726 struct cfg80211_registered_device *rdev;
2a519311 5727 struct cfg80211_internal_bss *scan;
48ab905d 5728 struct wireless_dev *wdev;
97990a06 5729 int start = cb->args[2], idx = 0;
2a519311
JB		 5730 int err;
5731
97990a06 5732 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5733 if (err)
5734 return err;
2a519311 5735
48ab905d
JB		 5736 wdev_lock(wdev);
5737 spin_lock_bh(&rdev->bss_lock);
5738 cfg80211_bss_expire(rdev);
5739
9720bb3a
JB		 5740 cb->seq = rdev->bss_generation;
5741
48ab905d 5742 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5743 if (++idx <= start)
5744 continue;
9720bb3a 5745 if (nl80211_send_bss(skb, cb,
2a519311 5746 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5747 rdev, wdev, scan) < 0) {
2a519311 5748 idx--;
67748893 5749 break;
2a519311
JB		 5750 }
5751 }
5752
48ab905d
JB		 5753 spin_unlock_bh(&rdev->bss_lock);
5754 wdev_unlock(wdev);
2a519311 5755
97990a06
JB		 5756 cb->args[2] = idx;
5757 nl80211_finish_wdev_dump(rdev);
2a519311 5758
67748893 5759 return skb->len;
2a519311
JB		 5760}
5761
15e47304 5762static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5763 int flags, struct net_device *dev,
5764 struct survey_info *survey)
5765{
5766 void *hdr;
5767 struct nlattr *infoattr;
5768
15e47304 5769 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5770 NL80211_CMD_NEW_SURVEY_RESULTS);
5771 if (!hdr)
5772 return -ENOMEM;
5773
9360ffd1
DM		 5774 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5775 goto nla_put_failure;
61fa713c
HS		 5776
5777 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5778 if (!infoattr)
5779 goto nla_put_failure;
5780
9360ffd1
DM		 5781 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5782 survey->channel->center_freq))
5783 goto nla_put_failure;
5784
5785 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5786 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5787 goto nla_put_failure;
5788 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5789 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5790 goto nla_put_failure;
5791 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5792 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5793 survey->channel_time))
5794 goto nla_put_failure;
5795 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5796 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5797 survey->channel_time_busy))
5798 goto nla_put_failure;
5799 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5800 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5801 survey->channel_time_ext_busy))
5802 goto nla_put_failure;
5803 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5804 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5805 survey->channel_time_rx))
5806 goto nla_put_failure;
5807 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5808 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5809 survey->channel_time_tx))
5810 goto nla_put_failure;
61fa713c
HS		 5811
5812 nla_nest_end(msg, infoattr);
5813
5814 return genlmsg_end(msg, hdr);
5815
5816 nla_put_failure:
5817 genlmsg_cancel(msg, hdr);
5818 return -EMSGSIZE;
5819}
5820
5821static int nl80211_dump_survey(struct sk_buff *skb,
5822 struct netlink_callback *cb)
5823{
5824 struct survey_info survey;
5825 struct cfg80211_registered_device *dev;
97990a06
JB		 5826 struct wireless_dev *wdev;
5827 int survey_idx = cb->args[2];
61fa713c
HS		 5828 int res;
5829
97990a06 5830 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5831 if (res)
5832 return res;
61fa713c 5833
97990a06
JB		 5834 if (!wdev->netdev) {
5835 res = -EINVAL;
5836 goto out_err;
5837 }
5838
61fa713c
HS		 5839 if (!dev->ops->dump_survey) {
5840 res = -EOPNOTSUPP;
5841 goto out_err;
5842 }
5843
5844 while (1) {
180cdc79
LR		 5845 struct ieee80211_channel *chan;
5846
97990a06 5847 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5848 if (res == -ENOENT)
5849 break;
5850 if (res)
5851 goto out_err;
5852
180cdc79
LR		 5853 /* Survey without a channel doesn't make sense */
5854 if (!survey.channel) {
5855 res = -EINVAL;
5856 goto out;
5857 }
5858
5859 chan = ieee80211_get_channel(&dev->wiphy,
5860 survey.channel->center_freq);
5861 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5862 survey_idx++;
5863 continue;
5864 }
5865
61fa713c 5866 if (nl80211_send_survey(skb,
15e47304 5867 NETLINK_CB(cb->skb).portid,
61fa713c 5868 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5869 wdev->netdev, &survey) < 0)
61fa713c
HS		 5870 goto out;
5871 survey_idx++;
5872 }
5873
5874 out:
97990a06 5875 cb->args[2] = survey_idx;
61fa713c
HS		 5876 res = skb->len;
5877 out_err:
97990a06 5878 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5879 return res;
5880}
5881
b23aa676
SO		 5882static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5883{
5884 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5885 NL80211_WPA_VERSION_2));
5886}
5887
636a5d36
JM		 5888static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5889{
4c476991
JB		 5890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5891 struct net_device *dev = info->user_ptr[1];
19957bb3 5892 struct ieee80211_channel *chan;
e39e5b5e
JM		 5893 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5894 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5895 enum nl80211_auth_type auth_type;
fffd0934 5896 struct key_parse key;
d5cdfacb 5897 bool local_state_change;
636a5d36 5898
f4a11bb0
JB		 5899 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5900 return -EINVAL;
5901
5902 if (!info->attrs[NL80211_ATTR_MAC])
5903 return -EINVAL;
5904
1778092e
JM		 5905 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5906 return -EINVAL;
5907
19957bb3
JB		 5908 if (!info->attrs[NL80211_ATTR_SSID])
5909 return -EINVAL;
5910
5911 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5912 return -EINVAL;
5913
fffd0934
JB		 5914 err = nl80211_parse_key(info, &key);
5915 if (err)
5916 return err;
5917
5918 if (key.idx >= 0) {
e31b8213
JB		 5919 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5920 return -EINVAL;
fffd0934
JB		 5921 if (!key.p.key || !key.p.key_len)
5922 return -EINVAL;
5923 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5924 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5925 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5926 key.p.key_len != WLAN_KEY_LEN_WEP104))
5927 return -EINVAL;
5928 if (key.idx > 4)
5929 return -EINVAL;
5930 } else {
5931 key.p.key_len = 0;
5932 key.p.key = NULL;
5933 }
5934
afea0b7a
JB		 5935 if (key.idx >= 0) {
5936 int i;
5937 bool ok = false;
5938 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5939 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5940 ok = true;
5941 break;
5942 }
5943 }
4c476991
JB		 5944 if (!ok)
5945 return -EINVAL;
afea0b7a
JB		 5946 }
5947
4c476991
JB		 5948 if (!rdev->ops->auth)
5949 return -EOPNOTSUPP;
636a5d36 5950
074ac8df 5951 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5952 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5953 return -EOPNOTSUPP;
eec60b03 5954
19957bb3 5955 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5956 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5957 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5958 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5959 return -EINVAL;
636a5d36 5960
19957bb3
JB		 5961 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5962 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5963
5964 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5965 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5966 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5967 }
5968
19957bb3 5969 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5970 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5971 return -EINVAL;
636a5d36 5972
e39e5b5e
JM		 5973 if (auth_type == NL80211_AUTHTYPE_SAE &&
5974 !info->attrs[NL80211_ATTR_SAE_DATA])
5975 return -EINVAL;
5976
5977 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5978 if (auth_type != NL80211_AUTHTYPE_SAE)
5979 return -EINVAL;
5980 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5981 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5982 /* need to include at least Auth Transaction and Status Code */
5983 if (sae_data_len < 4)
5984 return -EINVAL;
5985 }
5986
d5cdfacb
JM		 5987 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5988
95de817b
JB		 5989 /*
5990 * Since we no longer track auth state, ignore
5991 * requests to only change local state.
5992 */
5993 if (local_state_change)
5994 return 0;
5995
91bf9b26
JB		 5996 wdev_lock(dev->ieee80211_ptr);
5997 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5998 ssid, ssid_len, ie, ie_len,
5999 key.p.key, key.p.key_len, key.idx,
6000 sae_data, sae_data_len);
6001 wdev_unlock(dev->ieee80211_ptr);
6002 return err;
636a5d36
JM		 6003}
6004
c0692b8f
JB		 6005static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6006 struct genl_info *info,
3dc27d25
JB		 6007 struct cfg80211_crypto_settings *settings,
6008 int cipher_limit)
b23aa676 6009{
c0b2bbd8
JB		 6010 memset(settings, 0, sizeof(*settings));
6011
b23aa676
SO		 6012 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6013
c0692b8f
JB		 6014 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6015 u16 proto;
6016 proto = nla_get_u16(
6017 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6018 settings->control_port_ethertype = cpu_to_be16(proto);
6019 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6020 proto != ETH_P_PAE)
6021 return -EINVAL;
6022 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6023 settings->control_port_no_encrypt = true;
6024 } else
6025 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6026
b23aa676
SO		 6027 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6028 void *data;
6029 int len, i;
6030
6031 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6032 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6033 settings->n_ciphers_pairwise = len / sizeof(u32);
6034
6035 if (len % sizeof(u32))
6036 return -EINVAL;
6037
3dc27d25 6038 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6039 return -EINVAL;
6040
6041 memcpy(settings->ciphers_pairwise, data, len);
6042
6043 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6044 if (!cfg80211_supported_cipher_suite(
6045 &rdev->wiphy,
b23aa676
SO		 6046 settings->ciphers_pairwise[i]))
6047 return -EINVAL;
6048 }
6049
6050 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6051 settings->cipher_group =
6052 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6053 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6054 settings->cipher_group))
b23aa676
SO		 6055 return -EINVAL;
6056 }
6057
6058 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6059 settings->wpa_versions =
6060 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6061 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6062 return -EINVAL;
6063 }
6064
6065 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6066 void *data;
6d30240e 6067 int len;
b23aa676
SO		 6068
6069 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6070 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6071 settings->n_akm_suites = len / sizeof(u32);
6072
6073 if (len % sizeof(u32))
6074 return -EINVAL;
6075
1b9ca027
JM		 6076 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6077 return -EINVAL;
6078
b23aa676 6079 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6080 }
6081
6082 return 0;
6083}
6084
636a5d36
JM		 6085static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6086{
4c476991
JB		 6087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6088 struct net_device *dev = info->user_ptr[1];
f444de05 6089 struct ieee80211_channel *chan;
f62fab73
JB		 6090 struct cfg80211_assoc_request req = {};
6091 const u8 *bssid, *ssid;
6092 int err, ssid_len = 0;
636a5d36 6093
f4a11bb0
JB		 6094 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6095 return -EINVAL;
6096
6097 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6098 !info->attrs[NL80211_ATTR_SSID] ||
6099 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6100 return -EINVAL;
6101
4c476991
JB		 6102 if (!rdev->ops->assoc)
6103 return -EOPNOTSUPP;
636a5d36 6104
074ac8df 6105 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6106 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6107 return -EOPNOTSUPP;
eec60b03 6108
19957bb3 6109 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6110
19957bb3
JB		 6111 chan = ieee80211_get_channel(&rdev->wiphy,
6112 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6113 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6114 return -EINVAL;
636a5d36 6115
19957bb3
JB		 6116 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6117 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6118
6119 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6120 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6121 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6122 }
6123
dc6382ce 6124 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6125 enum nl80211_mfp mfp =
dc6382ce 6126 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6127 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6128 req.use_mfp = true;
4c476991
JB		 6129 else if (mfp != NL80211_MFP_NO)
6130 return -EINVAL;
dc6382ce
JM		 6131 }
6132
3e5d7649 6133 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6134 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6135
7e7c8926 6136 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6137 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6138
6139 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6140 memcpy(&req.ht_capa_mask,
6141 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6142 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6143
6144 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6145 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6146 return -EINVAL;
f62fab73
JB		 6147 memcpy(&req.ht_capa,
6148 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6149 sizeof(req.ht_capa));
7e7c8926
BG		 6150 }
6151
ee2aca34 6152 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6153 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6154
6155 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6156 memcpy(&req.vht_capa_mask,
6157 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6158 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6159
6160 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6161 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6162 return -EINVAL;
f62fab73
JB		 6163 memcpy(&req.vht_capa,
6164 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6165 sizeof(req.vht_capa));
ee2aca34
JB		 6166 }
6167
f62fab73 6168 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6169 if (!err) {
6170 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6171 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6172 ssid, ssid_len, &req);
91bf9b26
JB		 6173 wdev_unlock(dev->ieee80211_ptr);
6174 }
636a5d36 6175
636a5d36
JM		 6176 return err;
6177}
6178
6179static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6180{
4c476991
JB		 6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6182 struct net_device *dev = info->user_ptr[1];
19957bb3 6183 const u8 *ie = NULL, *bssid;
91bf9b26 6184 int ie_len = 0, err;
19957bb3 6185 u16 reason_code;
d5cdfacb 6186 bool local_state_change;
636a5d36 6187
f4a11bb0
JB		 6188 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6189 return -EINVAL;
6190
6191 if (!info->attrs[NL80211_ATTR_MAC])
6192 return -EINVAL;
6193
6194 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6195 return -EINVAL;
6196
4c476991
JB		 6197 if (!rdev->ops->deauth)
6198 return -EOPNOTSUPP;
636a5d36 6199
074ac8df 6200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6202 return -EOPNOTSUPP;
eec60b03 6203
19957bb3 6204 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6205
19957bb3
JB		 6206 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6207 if (reason_code == 0) {
f4a11bb0 6208 /* Reason Code 0 is reserved */
4c476991 6209 return -EINVAL;
255e737e 6210 }
636a5d36
JM		 6211
6212 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6213 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6214 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6215 }
6216
d5cdfacb
JM		 6217 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6218
91bf9b26
JB		 6219 wdev_lock(dev->ieee80211_ptr);
6220 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6221 local_state_change);
6222 wdev_unlock(dev->ieee80211_ptr);
6223 return err;
636a5d36
JM		 6224}
6225
6226static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6227{
4c476991
JB		 6228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6229 struct net_device *dev = info->user_ptr[1];
19957bb3 6230 const u8 *ie = NULL, *bssid;
91bf9b26 6231 int ie_len = 0, err;
19957bb3 6232 u16 reason_code;
d5cdfacb 6233 bool local_state_change;
636a5d36 6234
f4a11bb0
JB		 6235 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6236 return -EINVAL;
6237
6238 if (!info->attrs[NL80211_ATTR_MAC])
6239 return -EINVAL;
6240
6241 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6242 return -EINVAL;
6243
4c476991
JB		 6244 if (!rdev->ops->disassoc)
6245 return -EOPNOTSUPP;
636a5d36 6246
074ac8df 6247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6248 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6249 return -EOPNOTSUPP;
eec60b03 6250
19957bb3 6251 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6252
19957bb3
JB		 6253 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6254 if (reason_code == 0) {
f4a11bb0 6255 /* Reason Code 0 is reserved */
4c476991 6256 return -EINVAL;
255e737e 6257 }
636a5d36
JM		 6258
6259 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6260 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6261 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6262 }
6263
d5cdfacb
JM		 6264 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6265
91bf9b26
JB		 6266 wdev_lock(dev->ieee80211_ptr);
6267 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6268 local_state_change);
6269 wdev_unlock(dev->ieee80211_ptr);
6270 return err;
636a5d36
JM		 6271}
6272
dd5b4cc7
FF		 6273static bool
6274nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6275 int mcast_rate[IEEE80211_NUM_BANDS],
6276 int rateval)
6277{
6278 struct wiphy *wiphy = &rdev->wiphy;
6279 bool found = false;
6280 int band, i;
6281
6282 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6283 struct ieee80211_supported_band *sband;
6284
6285 sband = wiphy->bands[band];
6286 if (!sband)
6287 continue;
6288
6289 for (i = 0; i < sband->n_bitrates; i++) {
6290 if (sband->bitrates[i].bitrate == rateval) {
6291 mcast_rate[band] = i + 1;
6292 found = true;
6293 break;
6294 }
6295 }
6296 }
6297
6298 return found;
6299}
6300
04a773ad
JB		 6301static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6302{
4c476991
JB		 6303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6304 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6305 struct cfg80211_ibss_params ibss;
6306 struct wiphy *wiphy;
fffd0934 6307 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6308 int err;
6309
8e30bc55
JB		 6310 memset(&ibss, 0, sizeof(ibss));
6311
04a773ad
JB		 6312 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6313 return -EINVAL;
6314
683b6d3b 6315 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6316 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6317 return -EINVAL;
6318
8e30bc55
JB		 6319 ibss.beacon_interval = 100;
6320
6321 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6322 ibss.beacon_interval =
6323 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6324 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6325 return -EINVAL;
6326 }
6327
4c476991
JB		 6328 if (!rdev->ops->join_ibss)
6329 return -EOPNOTSUPP;
04a773ad 6330
4c476991
JB		 6331 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6332 return -EOPNOTSUPP;
04a773ad 6333
79c97e97 6334 wiphy = &rdev->wiphy;
04a773ad 6335
39193498 6336 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6337 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6338
6339 if (!is_valid_ether_addr(ibss.bssid))
6340 return -EINVAL;
6341 }
04a773ad
JB		 6342 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6343 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6344
6345 if (info->attrs[NL80211_ATTR_IE]) {
6346 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6347 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6348 }
6349
683b6d3b
JB		 6350 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6351 if (err)
6352 return err;
04a773ad 6353
683b6d3b 6354 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6355 return -EINVAL;
6356
2f301ab2
SW		 6357 switch (ibss.chandef.width) {
6358 case NL80211_CHAN_WIDTH_20_NOHT:
6359 break;
6360 case NL80211_CHAN_WIDTH_20:
6361 case NL80211_CHAN_WIDTH_40:
6362 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6363 break;
6364 default:
c04d6150 6365 return -EINVAL;
2f301ab2 6366 }
db9c64cf 6367
04a773ad 6368 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6369 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6370
fbd2c8dc
TP		 6371 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6372 u8 *rates =
6373 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6374 int n_rates =
6375 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6376 struct ieee80211_supported_band *sband =
683b6d3b 6377 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6378
34850ab2
JB		 6379 err = ieee80211_get_ratemask(sband, rates, n_rates,
6380 &ibss.basic_rates);
6381 if (err)
6382 return err;
fbd2c8dc 6383 }
dd5b4cc7 6384
803768f5
SW		 6385 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6386 memcpy(&ibss.ht_capa_mask,
6387 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6388 sizeof(ibss.ht_capa_mask));
6389
6390 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6391 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6392 return -EINVAL;
6393 memcpy(&ibss.ht_capa,
6394 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6395 sizeof(ibss.ht_capa));
6396 }
6397
dd5b4cc7
FF		 6398 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6399 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6400 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6401 return -EINVAL;
fbd2c8dc 6402
4c476991 6403 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6404 bool no_ht = false;
6405
4c476991 6406 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6407 info->attrs[NL80211_ATTR_KEYS],
6408 &no_ht);
4c476991
JB		 6409 if (IS_ERR(connkeys))
6410 return PTR_ERR(connkeys);
de7044ee 6411
3d9d1d66
JB		 6412 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6413 no_ht) {
de7044ee
SM		 6414 kfree(connkeys);
6415 return -EINVAL;
6416 }
4c476991 6417 }
04a773ad 6418
267335d6
AQ		 6419 ibss.control_port =
6420 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6421
4c476991 6422 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6423 if (err)
6424 kfree(connkeys);
04a773ad
JB		 6425 return err;
6426}
6427
6428static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6429{
4c476991
JB		 6430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6431 struct net_device *dev = info->user_ptr[1];
04a773ad 6432
4c476991
JB		 6433 if (!rdev->ops->leave_ibss)
6434 return -EOPNOTSUPP;
04a773ad 6435
4c476991
JB		 6436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6437 return -EOPNOTSUPP;
04a773ad 6438
4c476991 6439 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6440}
6441
f4e583c8
AQ		 6442static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6443{
6444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6445 struct net_device *dev = info->user_ptr[1];
6446 int mcast_rate[IEEE80211_NUM_BANDS];
6447 u32 nla_rate;
6448 int err;
6449
6450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6452 return -EOPNOTSUPP;
6453
6454 if (!rdev->ops->set_mcast_rate)
6455 return -EOPNOTSUPP;
6456
6457 memset(mcast_rate, 0, sizeof(mcast_rate));
6458
6459 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6460 return -EINVAL;
6461
6462 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6463 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6464 return -EINVAL;
6465
6466 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6467
6468 return err;
6469}
6470
6471
aff89a9b
JB		 6472#ifdef CONFIG_NL80211_TESTMODE
6473static struct genl_multicast_group nl80211_testmode_mcgrp = {
6474 .name = "testmode",
6475};
6476
6477static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6478{
4c476991 6479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6480 int err;
6481
6482 if (!info->attrs[NL80211_ATTR_TESTDATA])
6483 return -EINVAL;
6484
aff89a9b
JB		 6485 err = -EOPNOTSUPP;
6486 if (rdev->ops->testmode_cmd) {
6487 rdev->testmode_info = info;
e35e4d28 6488 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6489 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6490 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6491 rdev->testmode_info = NULL;
6492 }
6493
aff89a9b
JB		 6494 return err;
6495}
6496
71063f0e
WYG		 6497static int nl80211_testmode_dump(struct sk_buff *skb,
6498 struct netlink_callback *cb)
6499{
00918d33 6500 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6501 int err;
6502 long phy_idx;
6503 void *data = NULL;
6504 int data_len = 0;
6505
5fe231e8
JB		 6506 rtnl_lock();
6507
71063f0e
WYG		 6508 if (cb->args[0]) {
6509 /*
6510 * 0 is a valid index, but not valid for args[0],
6511 * so we need to offset by 1.
6512 */
6513 phy_idx = cb->args[0] - 1;
6514 } else {
6515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6517 nl80211_policy);
6518 if (err)
5fe231e8 6519 goto out_err;
00918d33 6520
2bd7e35d
JB		 6521 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6522 nl80211_fam.attrbuf);
6523 if (IS_ERR(rdev)) {
5fe231e8
JB		 6524 err = PTR_ERR(rdev);
6525 goto out_err;
00918d33 6526 }
2bd7e35d
JB		 6527 phy_idx = rdev->wiphy_idx;
6528 rdev = NULL;
2bd7e35d 6529
71063f0e
WYG		 6530 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6531 cb->args[1] =
6532 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6533 }
6534
6535 if (cb->args[1]) {
6536 data = nla_data((void *)cb->args[1]);
6537 data_len = nla_len((void *)cb->args[1]);
6538 }
6539
00918d33
JB		 6540 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6541 if (!rdev) {
5fe231e8
JB		 6542 err = -ENOENT;
6543 goto out_err;
71063f0e 6544 }
71063f0e 6545
00918d33 6546 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6547 err = -EOPNOTSUPP;
6548 goto out_err;
6549 }
6550
6551 while (1) {
15e47304 6552 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6553 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6554 NL80211_CMD_TESTMODE);
6555 struct nlattr *tmdata;
6556
9360ffd1 6557 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6558 genlmsg_cancel(skb, hdr);
6559 break;
6560 }
6561
6562 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6563 if (!tmdata) {
6564 genlmsg_cancel(skb, hdr);
6565 break;
6566 }
e35e4d28 6567 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6568 nla_nest_end(skb, tmdata);
6569
6570 if (err == -ENOBUFS || err == -ENOENT) {
6571 genlmsg_cancel(skb, hdr);
6572 break;
6573 } else if (err) {
6574 genlmsg_cancel(skb, hdr);
6575 goto out_err;
6576 }
6577
6578 genlmsg_end(skb, hdr);
6579 }
6580
6581 err = skb->len;
6582 /* see above */
6583 cb->args[0] = phy_idx + 1;
6584 out_err:
5fe231e8 6585 rtnl_unlock();
71063f0e
WYG		 6586 return err;
6587}
6588
aff89a9b
JB		 6589static struct sk_buff *
6590__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6591 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6592{
6593 struct sk_buff *skb;
6594 void *hdr;
6595 struct nlattr *data;
6596
6597 skb = nlmsg_new(approxlen + 100, gfp);
6598 if (!skb)
6599 return NULL;
6600
15e47304 6601 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6602 if (!hdr) {
6603 kfree_skb(skb);
6604 return NULL;
6605 }
6606
9360ffd1
DM		 6607 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6608 goto nla_put_failure;
aff89a9b
JB		 6609 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6610
6611 ((void **)skb->cb)[0] = rdev;
6612 ((void **)skb->cb)[1] = hdr;
6613 ((void **)skb->cb)[2] = data;
6614
6615 return skb;
6616
6617 nla_put_failure:
6618 kfree_skb(skb);
6619 return NULL;
6620}
6621
6622struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6623 int approxlen)
6624{
6625 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6626
6627 if (WARN_ON(!rdev->testmode_info))
6628 return NULL;
6629
6630 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6631 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6632 rdev->testmode_info->snd_seq,
6633 GFP_KERNEL);
6634}
6635EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6636
6637int cfg80211_testmode_reply(struct sk_buff *skb)
6638{
6639 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6640 void *hdr = ((void **)skb->cb)[1];
6641 struct nlattr *data = ((void **)skb->cb)[2];
6642
6643 if (WARN_ON(!rdev->testmode_info)) {
6644 kfree_skb(skb);
6645 return -EINVAL;
6646 }
6647
6648 nla_nest_end(skb, data);
6649 genlmsg_end(skb, hdr);
6650 return genlmsg_reply(skb, rdev->testmode_info);
6651}
6652EXPORT_SYMBOL(cfg80211_testmode_reply);
6653
6654struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6655 int approxlen, gfp_t gfp)
6656{
6657 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6658
6659 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6660}
6661EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6662
6663void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6664{
6665 void *hdr = ((void **)skb->cb)[1];
6666 struct nlattr *data = ((void **)skb->cb)[2];
6667
6668 nla_nest_end(skb, data);
6669 genlmsg_end(skb, hdr);
6670 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6671}
6672EXPORT_SYMBOL(cfg80211_testmode_event);
6673#endif
6674
b23aa676
SO		 6675static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6676{
4c476991
JB		 6677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6678 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6679 struct cfg80211_connect_params connect;
6680 struct wiphy *wiphy;
fffd0934 6681 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6682 int err;
6683
6684 memset(&connect, 0, sizeof(connect));
6685
6686 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6687 return -EINVAL;
6688
6689 if (!info->attrs[NL80211_ATTR_SSID] ||
6690 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6691 return -EINVAL;
6692
6693 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6694 connect.auth_type =
6695 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6696 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6697 NL80211_CMD_CONNECT))
b23aa676
SO		 6698 return -EINVAL;
6699 } else
6700 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6701
6702 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6703
c0692b8f 6704 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6705 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6706 if (err)
6707 return err;
b23aa676 6708
074ac8df 6709 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6710 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6711 return -EOPNOTSUPP;
b23aa676 6712
79c97e97 6713 wiphy = &rdev->wiphy;
b23aa676 6714
4486ea98
BS		 6715 connect.bg_scan_period = -1;
6716 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6717 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6718 connect.bg_scan_period =
6719 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6720 }
6721
b23aa676
SO		 6722 if (info->attrs[NL80211_ATTR_MAC])
6723 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6724 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6725 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6726
6727 if (info->attrs[NL80211_ATTR_IE]) {
6728 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6729 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6730 }
6731
cee00a95
JM		 6732 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6733 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6734 if (connect.mfp != NL80211_MFP_REQUIRED &&
6735 connect.mfp != NL80211_MFP_NO)
6736 return -EINVAL;
6737 } else {
6738 connect.mfp = NL80211_MFP_NO;
6739 }
6740
b23aa676
SO		 6741 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6742 connect.channel =
6743 ieee80211_get_channel(wiphy,
6744 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6745 if (!connect.channel ||
4c476991
JB		 6746 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6747 return -EINVAL;
b23aa676
SO		 6748 }
6749
fffd0934
JB		 6750 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6751 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6752 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6753 if (IS_ERR(connkeys))
6754 return PTR_ERR(connkeys);
fffd0934
JB		 6755 }
6756
7e7c8926
BG		 6757 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6758 connect.flags |= ASSOC_REQ_DISABLE_HT;
6759
6760 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6761 memcpy(&connect.ht_capa_mask,
6762 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6763 sizeof(connect.ht_capa_mask));
6764
6765 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6766 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6767 kfree(connkeys);
7e7c8926 6768 return -EINVAL;
b4e4f47e 6769 }
7e7c8926
BG		 6770 memcpy(&connect.ht_capa,
6771 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6772 sizeof(connect.ht_capa));
6773 }
6774
ee2aca34
JB		 6775 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6776 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6777
6778 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6779 memcpy(&connect.vht_capa_mask,
6780 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6781 sizeof(connect.vht_capa_mask));
6782
6783 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6784 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6785 kfree(connkeys);
6786 return -EINVAL;
6787 }
6788 memcpy(&connect.vht_capa,
6789 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6790 sizeof(connect.vht_capa));
6791 }
6792
83739b03
JB		 6793 wdev_lock(dev->ieee80211_ptr);
6794 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6795 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6796 if (err)
6797 kfree(connkeys);
b23aa676
SO		 6798 return err;
6799}
6800
6801static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6802{
4c476991
JB		 6803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6804 struct net_device *dev = info->user_ptr[1];
b23aa676 6805 u16 reason;
83739b03 6806 int ret;
b23aa676
SO		 6807
6808 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6809 reason = WLAN_REASON_DEAUTH_LEAVING;
6810 else
6811 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6812
6813 if (reason == 0)
6814 return -EINVAL;
6815
074ac8df 6816 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6817 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6818 return -EOPNOTSUPP;
b23aa676 6819
83739b03
JB		 6820 wdev_lock(dev->ieee80211_ptr);
6821 ret = cfg80211_disconnect(rdev, dev, reason, true);
6822 wdev_unlock(dev->ieee80211_ptr);
6823 return ret;
b23aa676
SO		 6824}
6825
463d0183
JB		 6826static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6827{
4c476991 6828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6829 struct net *net;
6830 int err;
6831 u32 pid;
6832
6833 if (!info->attrs[NL80211_ATTR_PID])
6834 return -EINVAL;
6835
6836 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6837
463d0183 6838 net = get_net_ns_by_pid(pid);
4c476991
JB		 6839 if (IS_ERR(net))
6840 return PTR_ERR(net);
463d0183
JB		 6841
6842 err = 0;
6843
6844 /* check if anything to do */
4c476991
JB		 6845 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6846 err = cfg80211_switch_netns(rdev, net);
463d0183 6847
463d0183 6848 put_net(net);
463d0183
JB		 6849 return err;
6850}
6851
67fbb16b
SO		 6852static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6853{
4c476991 6854 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6855 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6856 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6857 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6858 struct cfg80211_pmksa pmksa;
6859
6860 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6861
6862 if (!info->attrs[NL80211_ATTR_MAC])
6863 return -EINVAL;
6864
6865 if (!info->attrs[NL80211_ATTR_PMKID])
6866 return -EINVAL;
6867
67fbb16b
SO		 6868 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6869 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6870
074ac8df 6871 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6872 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6873 return -EOPNOTSUPP;
67fbb16b
SO		 6874
6875 switch (info->genlhdr->cmd) {
6876 case NL80211_CMD_SET_PMKSA:
6877 rdev_ops = rdev->ops->set_pmksa;
6878 break;
6879 case NL80211_CMD_DEL_PMKSA:
6880 rdev_ops = rdev->ops->del_pmksa;
6881 break;
6882 default:
6883 WARN_ON(1);
6884 break;
6885 }
6886
4c476991
JB		 6887 if (!rdev_ops)
6888 return -EOPNOTSUPP;
67fbb16b 6889
4c476991 6890 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6891}
6892
6893static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6894{
4c476991
JB		 6895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6896 struct net_device *dev = info->user_ptr[1];
67fbb16b 6897
074ac8df 6898 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6899 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6900 return -EOPNOTSUPP;
67fbb16b 6901
4c476991
JB		 6902 if (!rdev->ops->flush_pmksa)
6903 return -EOPNOTSUPP;
67fbb16b 6904
e35e4d28 6905 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6906}
6907
109086ce
AN		 6908static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6909{
6910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6911 struct net_device *dev = info->user_ptr[1];
6912 u8 action_code, dialog_token;
6913 u16 status_code;
6914 u8 *peer;
6915
6916 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6917 !rdev->ops->tdls_mgmt)
6918 return -EOPNOTSUPP;
6919
6920 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6921 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6922 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6923 !info->attrs[NL80211_ATTR_IE] ||
6924 !info->attrs[NL80211_ATTR_MAC])
6925 return -EINVAL;
6926
6927 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6928 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6929 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6930 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6931
e35e4d28
HG		 6932 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6933 dialog_token, status_code,
6934 nla_data(info->attrs[NL80211_ATTR_IE]),
6935 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6936}
6937
6938static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6939{
6940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6941 struct net_device *dev = info->user_ptr[1];
6942 enum nl80211_tdls_operation operation;
6943 u8 *peer;
6944
6945 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6946 !rdev->ops->tdls_oper)
6947 return -EOPNOTSUPP;
6948
6949 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6950 !info->attrs[NL80211_ATTR_MAC])
6951 return -EINVAL;
6952
6953 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6954 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6955
e35e4d28 6956 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6957}
6958
9588bbd5
JM		 6959static int nl80211_remain_on_channel(struct sk_buff *skb,
6960 struct genl_info *info)
6961{
4c476991 6962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6963 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6964 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6965 struct sk_buff *msg;
6966 void *hdr;
6967 u64 cookie;
683b6d3b 6968 u32 duration;
9588bbd5
JM		 6969 int err;
6970
6971 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6972 !info->attrs[NL80211_ATTR_DURATION])
6973 return -EINVAL;
6974
6975 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6976
ebf348fc
JB		 6977 if (!rdev->ops->remain_on_channel ||
6978 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6979 return -EOPNOTSUPP;
6980
9588bbd5 6981 /*
ebf348fc
JB		 6982 * We should be on that channel for at least a minimum amount of
6983 * time (10ms) but no longer than the driver supports.
9588bbd5 6984 */
ebf348fc 6985 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6986 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6987 return -EINVAL;
6988
683b6d3b
JB		 6989 err = nl80211_parse_chandef(rdev, info, &chandef);
6990 if (err)
6991 return err;
9588bbd5
JM		 6992
6993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6994 if (!msg)
6995 return -ENOMEM;
9588bbd5 6996
15e47304 6997 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6998 NL80211_CMD_REMAIN_ON_CHANNEL);
6999
7000 if (IS_ERR(hdr)) {
7001 err = PTR_ERR(hdr);
7002 goto free_msg;
7003 }
7004
683b6d3b
JB		 7005 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7006 duration, &cookie);
9588bbd5
JM		 7007
7008 if (err)
7009 goto free_msg;
7010
9360ffd1
DM		 7011 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7012 goto nla_put_failure;
9588bbd5
JM		 7013
7014 genlmsg_end(msg, hdr);
4c476991
JB		 7015
7016 return genlmsg_reply(msg, info);
9588bbd5
JM		 7017
7018 nla_put_failure:
7019 err = -ENOBUFS;
7020 free_msg:
7021 nlmsg_free(msg);
9588bbd5
JM		 7022 return err;
7023}
7024
7025static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7026 struct genl_info *info)
7027{
4c476991 7028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7029 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7030 u64 cookie;
9588bbd5
JM		 7031
7032 if (!info->attrs[NL80211_ATTR_COOKIE])
7033 return -EINVAL;
7034
4c476991
JB		 7035 if (!rdev->ops->cancel_remain_on_channel)
7036 return -EOPNOTSUPP;
9588bbd5 7037
9588bbd5
JM		 7038 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7039
e35e4d28 7040 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7041}
7042
13ae75b1
JM		 7043static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7044 u8 *rates, u8 rates_len)
7045{
7046 u8 i;
7047 u32 mask = 0;
7048
7049 for (i = 0; i < rates_len; i++) {
7050 int rate = (rates[i] & 0x7f) * 5;
7051 int ridx;
7052 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7053 struct ieee80211_rate *srate =
7054 &sband->bitrates[ridx];
7055 if (rate == srate->bitrate) {
7056 mask |= 1 << ridx;
7057 break;
7058 }
7059 }
7060 if (ridx == sband->n_bitrates)
7061 return 0; /* rate not found */
7062 }
7063
7064 return mask;
7065}
7066
24db78c0
SW		 7067static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7068 u8 *rates, u8 rates_len,
7069 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7070{
7071 u8 i;
7072
7073 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7074
7075 for (i = 0; i < rates_len; i++) {
7076 int ridx, rbit;
7077
7078 ridx = rates[i] / 8;
7079 rbit = BIT(rates[i] % 8);
7080
7081 /* check validity */
910570b5 7082 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7083 return false;
7084
7085 /* check availability */
7086 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7087 mcs[ridx] |= rbit;
7088 else
7089 return false;
7090 }
7091
7092 return true;
7093}
7094
b54452b0 7095static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7096 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7097 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7098 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7099 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7100};
7101
7102static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7103 struct genl_info *info)
7104{
7105 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7107 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7108 int rem, i;
7109 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7110 struct nlattr *tx_rates;
7111 struct ieee80211_supported_band *sband;
7112
7113 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7114 return -EINVAL;
7115
4c476991
JB		 7116 if (!rdev->ops->set_bitrate_mask)
7117 return -EOPNOTSUPP;
13ae75b1
JM		 7118
7119 memset(&mask, 0, sizeof(mask));
7120 /* Default to all rates enabled */
7121 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7122 sband = rdev->wiphy.bands[i];
7123 mask.control[i].legacy =
7124 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7125 if (sband)
7126 memcpy(mask.control[i].mcs,
7127 sband->ht_cap.mcs.rx_mask,
7128 sizeof(mask.control[i].mcs));
7129 else
7130 memset(mask.control[i].mcs, 0,
7131 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7132 }
7133
7134 /*
7135 * The nested attribute uses enum nl80211_band as the index. This maps
7136 * directly to the enum ieee80211_band values used in cfg80211.
7137 */
24db78c0 7138 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7139 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7140 {
7141 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7142 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7143 return -EINVAL;
13ae75b1 7144 sband = rdev->wiphy.bands[band];
4c476991
JB		 7145 if (sband == NULL)
7146 return -EINVAL;
13ae75b1
JM		 7147 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7148 nla_len(tx_rates), nl80211_txattr_policy);
7149 if (tb[NL80211_TXRATE_LEGACY]) {
7150 mask.control[band].legacy = rateset_to_mask(
7151 sband,
7152 nla_data(tb[NL80211_TXRATE_LEGACY]),
7153 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7154 if ((mask.control[band].legacy == 0) &&
7155 nla_len(tb[NL80211_TXRATE_LEGACY]))
7156 return -EINVAL;
24db78c0
SW		 7157 }
7158 if (tb[NL80211_TXRATE_MCS]) {
7159 if (!ht_rateset_to_mask(
7160 sband,
7161 nla_data(tb[NL80211_TXRATE_MCS]),
7162 nla_len(tb[NL80211_TXRATE_MCS]),
7163 mask.control[band].mcs))
7164 return -EINVAL;
7165 }
7166
7167 if (mask.control[band].legacy == 0) {
7168 /* don't allow empty legacy rates if HT
7169 * is not even supported. */
7170 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7171 return -EINVAL;
7172
7173 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7174 if (mask.control[band].mcs[i])
7175 break;
7176
7177 /* legacy and mcs rates may not be both empty */
7178 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7179 return -EINVAL;
13ae75b1
JM		 7180 }
7181 }
7182
e35e4d28 7183 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7184}
7185
2e161f78 7186static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7187{
4c476991 7188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7189 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7190 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7191
7192 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7193 return -EINVAL;
7194
2e161f78
JB		 7195 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7196 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7197
71bbc994
JB		 7198 switch (wdev->iftype) {
7199 case NL80211_IFTYPE_STATION:
7200 case NL80211_IFTYPE_ADHOC:
7201 case NL80211_IFTYPE_P2P_CLIENT:
7202 case NL80211_IFTYPE_AP:
7203 case NL80211_IFTYPE_AP_VLAN:
7204 case NL80211_IFTYPE_MESH_POINT:
7205 case NL80211_IFTYPE_P2P_GO:
98104fde 7206 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7207 break;
7208 default:
4c476991 7209 return -EOPNOTSUPP;
71bbc994 7210 }
026331c4
JM		 7211
7212 /* not much point in registering if we can't reply */
4c476991
JB		 7213 if (!rdev->ops->mgmt_tx)
7214 return -EOPNOTSUPP;
026331c4 7215
15e47304 7216 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7217 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7218 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7219}
7220
2e161f78 7221static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7222{
4c476991 7223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7224 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7225 struct cfg80211_chan_def chandef;
026331c4 7226 int err;
d64d373f 7227 void *hdr = NULL;
026331c4 7228 u64 cookie;
e247bd90 7229 struct sk_buff *msg = NULL;
f7ca38df 7230 unsigned int wait = 0;
e247bd90
JB		 7231 bool offchan, no_cck, dont_wait_for_ack;
7232
7233 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7234
683b6d3b 7235 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7236 return -EINVAL;
7237
4c476991
JB		 7238 if (!rdev->ops->mgmt_tx)
7239 return -EOPNOTSUPP;
026331c4 7240
71bbc994 7241 switch (wdev->iftype) {
ea141b75
AQ		 7242 case NL80211_IFTYPE_P2P_DEVICE:
7243 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7244 return -EINVAL;
71bbc994
JB		 7245 case NL80211_IFTYPE_STATION:
7246 case NL80211_IFTYPE_ADHOC:
7247 case NL80211_IFTYPE_P2P_CLIENT:
7248 case NL80211_IFTYPE_AP:
7249 case NL80211_IFTYPE_AP_VLAN:
7250 case NL80211_IFTYPE_MESH_POINT:
7251 case NL80211_IFTYPE_P2P_GO:
7252 break;
7253 default:
4c476991 7254 return -EOPNOTSUPP;
71bbc994 7255 }
026331c4 7256
f7ca38df 7257 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7258 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7259 return -EINVAL;
7260 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7261
7262 /*
7263 * We should wait on the channel for at least a minimum amount
7264 * of time (10ms) but no longer than the driver supports.
7265 */
7266 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7267 wait > rdev->wiphy.max_remain_on_channel_duration)
7268 return -EINVAL;
7269
f7ca38df
JB		 7270 }
7271
f7ca38df
JB		 7272 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7273
7c4ef712
JB		 7274 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7275 return -EINVAL;
7276
e9f935e3
RM		 7277 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7278
ea141b75
AQ		 7279 /* get the channel if any has been specified, otherwise pass NULL to
7280 * the driver. The latter will use the current one
7281 */
7282 chandef.chan = NULL;
7283 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7284 err = nl80211_parse_chandef(rdev, info, &chandef);
7285 if (err)
7286 return err;
7287 }
7288
7289 if (!chandef.chan && offchan)
7290 return -EINVAL;
026331c4 7291
e247bd90
JB		 7292 if (!dont_wait_for_ack) {
7293 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7294 if (!msg)
7295 return -ENOMEM;
026331c4 7296
15e47304 7297 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7298 NL80211_CMD_FRAME);
026331c4 7299
e247bd90
JB		 7300 if (IS_ERR(hdr)) {
7301 err = PTR_ERR(hdr);
7302 goto free_msg;
7303 }
026331c4 7304 }
e247bd90 7305
683b6d3b 7306 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7307 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7308 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7309 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7310 if (err)
7311 goto free_msg;
7312
e247bd90 7313 if (msg) {
9360ffd1
DM		 7314 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7315 goto nla_put_failure;
026331c4 7316
e247bd90
JB		 7317 genlmsg_end(msg, hdr);
7318 return genlmsg_reply(msg, info);
7319 }
7320
7321 return 0;
026331c4
JM		 7322
7323 nla_put_failure:
7324 err = -ENOBUFS;
7325 free_msg:
7326 nlmsg_free(msg);
026331c4
JM		 7327 return err;
7328}
7329
f7ca38df
JB		 7330static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7331{
7332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7333 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7334 u64 cookie;
7335
7336 if (!info->attrs[NL80211_ATTR_COOKIE])
7337 return -EINVAL;
7338
7339 if (!rdev->ops->mgmt_tx_cancel_wait)
7340 return -EOPNOTSUPP;
7341
71bbc994
JB		 7342 switch (wdev->iftype) {
7343 case NL80211_IFTYPE_STATION:
7344 case NL80211_IFTYPE_ADHOC:
7345 case NL80211_IFTYPE_P2P_CLIENT:
7346 case NL80211_IFTYPE_AP:
7347 case NL80211_IFTYPE_AP_VLAN:
7348 case NL80211_IFTYPE_P2P_GO:
98104fde 7349 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7350 break;
7351 default:
f7ca38df 7352 return -EOPNOTSUPP;
71bbc994 7353 }
f7ca38df
JB		 7354
7355 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7356
e35e4d28 7357 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7358}
7359
ffb9eb3d
KV		 7360static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7361{
4c476991 7362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7363 struct wireless_dev *wdev;
4c476991 7364 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7365 u8 ps_state;
7366 bool state;
7367 int err;
7368
4c476991
JB		 7369 if (!info->attrs[NL80211_ATTR_PS_STATE])
7370 return -EINVAL;
ffb9eb3d
KV		 7371
7372 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7373
4c476991
JB		 7374 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7375 return -EINVAL;
ffb9eb3d
KV		 7376
7377 wdev = dev->ieee80211_ptr;
7378
4c476991
JB		 7379 if (!rdev->ops->set_power_mgmt)
7380 return -EOPNOTSUPP;
ffb9eb3d
KV		 7381
7382 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7383
7384 if (state == wdev->ps)
4c476991 7385 return 0;
ffb9eb3d 7386
e35e4d28 7387 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7388 if (!err)
7389 wdev->ps = state;
ffb9eb3d
KV		 7390 return err;
7391}
7392
7393static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7394{
4c476991 7395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7396 enum nl80211_ps_state ps_state;
7397 struct wireless_dev *wdev;
4c476991 7398 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7399 struct sk_buff *msg;
7400 void *hdr;
7401 int err;
7402
ffb9eb3d
KV		 7403 wdev = dev->ieee80211_ptr;
7404
4c476991
JB		 7405 if (!rdev->ops->set_power_mgmt)
7406 return -EOPNOTSUPP;
ffb9eb3d
KV		 7407
7408 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7409 if (!msg)
7410 return -ENOMEM;
ffb9eb3d 7411
15e47304 7412 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7413 NL80211_CMD_GET_POWER_SAVE);
7414 if (!hdr) {
4c476991 7415 err = -ENOBUFS;
ffb9eb3d
KV		 7416 goto free_msg;
7417 }
7418
7419 if (wdev->ps)
7420 ps_state = NL80211_PS_ENABLED;
7421 else
7422 ps_state = NL80211_PS_DISABLED;
7423
9360ffd1
DM		 7424 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7425 goto nla_put_failure;
ffb9eb3d
KV		 7426
7427 genlmsg_end(msg, hdr);
4c476991 7428 return genlmsg_reply(msg, info);
ffb9eb3d 7429
4c476991 7430 nla_put_failure:
ffb9eb3d 7431 err = -ENOBUFS;
4c476991 7432 free_msg:
ffb9eb3d 7433 nlmsg_free(msg);
ffb9eb3d
KV		 7434 return err;
7435}
7436
d6dc1a38
JO		 7437static struct nla_policy
7438nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7439 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7440 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7441 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7442 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7443 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7444 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7445};
7446
84f10708 7447static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7448 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7449{
7450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7451 struct wireless_dev *wdev;
7452 struct net_device *dev = info->user_ptr[1];
7453
d9d8b019 7454 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7455 return -EINVAL;
7456
7457 wdev = dev->ieee80211_ptr;
7458
7459 if (!rdev->ops->set_cqm_txe_config)
7460 return -EOPNOTSUPP;
7461
7462 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7463 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7464 return -EOPNOTSUPP;
7465
e35e4d28 7466 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7467}
7468
d6dc1a38
JO		 7469static int nl80211_set_cqm_rssi(struct genl_info *info,
7470 s32 threshold, u32 hysteresis)
7471{
4c476991 7472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7473 struct wireless_dev *wdev;
4c476991 7474 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7475
7476 if (threshold > 0)
7477 return -EINVAL;
7478
d6dc1a38
JO		 7479 wdev = dev->ieee80211_ptr;
7480
4c476991
JB		 7481 if (!rdev->ops->set_cqm_rssi_config)
7482 return -EOPNOTSUPP;
d6dc1a38 7483
074ac8df 7484 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7485 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7486 return -EOPNOTSUPP;
d6dc1a38 7487
e35e4d28 7488 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7489}
7490
7491static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7492{
7493 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7494 struct nlattr *cqm;
7495 int err;
7496
7497 cqm = info->attrs[NL80211_ATTR_CQM];
7498 if (!cqm) {
7499 err = -EINVAL;
7500 goto out;
7501 }
7502
7503 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7504 nl80211_attr_cqm_policy);
7505 if (err)
7506 goto out;
7507
7508 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7509 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7510 s32 threshold;
7511 u32 hysteresis;
7512 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7513 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7514 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7515 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7516 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7517 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7518 u32 rate, pkts, intvl;
7519 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7520 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7521 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7522 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7523 } else
7524 err = -EINVAL;
7525
7526out:
7527 return err;
7528}
7529
29cbe68c
JB		 7530static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7531{
7532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7533 struct net_device *dev = info->user_ptr[1];
7534 struct mesh_config cfg;
c80d545d 7535 struct mesh_setup setup;
29cbe68c
JB		 7536 int err;
7537
7538 /* start with default */
7539 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7540 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7541
24bdd9f4 7542 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7543 /* and parse parameters if given */
24bdd9f4 7544 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7545 if (err)
7546 return err;
7547 }
7548
7549 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7550 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7551 return -EINVAL;
7552
c80d545d
JC		 7553 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7554 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7555
4bb62344
CYY		 7556 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7557 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7558 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7559 return -EINVAL;
7560
9bdbf04d
MP		 7561 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7562 setup.beacon_interval =
7563 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7564 if (setup.beacon_interval < 10 ||
7565 setup.beacon_interval > 10000)
7566 return -EINVAL;
7567 }
7568
7569 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7570 setup.dtim_period =
7571 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7572 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7573 return -EINVAL;
7574 }
7575
c80d545d
JC		 7576 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7577 /* parse additional setup parameters if given */
7578 err = nl80211_parse_mesh_setup(info, &setup);
7579 if (err)
7580 return err;
7581 }
7582
d37bb18a
TP		 7583 if (setup.user_mpm)
7584 cfg.auto_open_plinks = false;
7585
cc1d2806 7586 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7587 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7588 if (err)
7589 return err;
cc1d2806
JB		 7590 } else {
7591 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7592 setup.chandef.chan = NULL;
cc1d2806
JB		 7593 }
7594
ffb3cf30
AN		 7595 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7596 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7597 int n_rates =
7598 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7599 struct ieee80211_supported_band *sband;
7600
7601 if (!setup.chandef.chan)
7602 return -EINVAL;
7603
7604 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7605
7606 err = ieee80211_get_ratemask(sband, rates, n_rates,
7607 &setup.basic_rates);
7608 if (err)
7609 return err;
7610 }
7611
c80d545d 7612 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7613}
7614
7615static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7616{
7617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7618 struct net_device *dev = info->user_ptr[1];
7619
7620 return cfg80211_leave_mesh(rdev, dev);
7621}
7622
dfb89c56 7623#ifdef CONFIG_PM
bb92d199
AK		 7624static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7625 struct cfg80211_registered_device *rdev)
7626{
6abb9cb9 7627 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7628 struct nlattr *nl_pats, *nl_pat;
7629 int i, pat_len;
7630
6abb9cb9 7631 if (!wowlan->n_patterns)
bb92d199
AK		 7632 return 0;
7633
7634 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7635 if (!nl_pats)
7636 return -ENOBUFS;
7637
6abb9cb9 7638 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7639 nl_pat = nla_nest_start(msg, i + 1);
7640 if (!nl_pat)
7641 return -ENOBUFS;
6abb9cb9 7642 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 7643 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7644 wowlan->patterns[i].mask) ||
50ac6607
AK		 7645 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7646 wowlan->patterns[i].pattern) ||
7647 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 7648 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7649 return -ENOBUFS;
7650 nla_nest_end(msg, nl_pat);
7651 }
7652 nla_nest_end(msg, nl_pats);
7653
7654 return 0;
7655}
7656
2a0e047e
JB		 7657static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7658 struct cfg80211_wowlan_tcp *tcp)
7659{
7660 struct nlattr *nl_tcp;
7661
7662 if (!tcp)
7663 return 0;
7664
7665 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7666 if (!nl_tcp)
7667 return -ENOBUFS;
7668
7669 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7670 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7671 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7672 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7673 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7674 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7675 tcp->payload_len, tcp->payload) ||
7676 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7677 tcp->data_interval) ||
7678 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7679 tcp->wake_len, tcp->wake_data) ||
7680 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7681 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7682 return -ENOBUFS;
7683
7684 if (tcp->payload_seq.len &&
7685 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7686 sizeof(tcp->payload_seq), &tcp->payload_seq))
7687 return -ENOBUFS;
7688
7689 if (tcp->payload_tok.len &&
7690 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7691 sizeof(tcp->payload_tok) + tcp->tokens_size,
7692 &tcp->payload_tok))
7693 return -ENOBUFS;
7694
e248ad30
JB		 7695 nla_nest_end(msg, nl_tcp);
7696
2a0e047e
JB		 7697 return 0;
7698}
7699
ff1b6e69
JB		 7700static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7701{
7702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7703 struct sk_buff *msg;
7704 void *hdr;
2a0e047e 7705 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7706
964dc9e2 7707 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7708 return -EOPNOTSUPP;
7709
6abb9cb9 7710 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7711 /* adjust size to have room for all the data */
6abb9cb9
JB		 7712 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7713 rdev->wiphy.wowlan_config->tcp->payload_len +
7714 rdev->wiphy.wowlan_config->tcp->wake_len +
7715 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7716 }
7717
7718 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7719 if (!msg)
7720 return -ENOMEM;
7721
15e47304 7722 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7723 NL80211_CMD_GET_WOWLAN);
7724 if (!hdr)
7725 goto nla_put_failure;
7726
6abb9cb9 7727 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7728 struct nlattr *nl_wowlan;
7729
7730 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7731 if (!nl_wowlan)
7732 goto nla_put_failure;
7733
6abb9cb9 7734 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7735 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7736 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7737 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7738 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7739 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7740 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7741 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7742 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7743 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7744 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7745 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7746 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7747 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7748 goto nla_put_failure;
2a0e047e 7749
bb92d199
AK		 7750 if (nl80211_send_wowlan_patterns(msg, rdev))
7751 goto nla_put_failure;
2a0e047e 7752
6abb9cb9
JB		 7753 if (nl80211_send_wowlan_tcp(msg,
7754 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7755 goto nla_put_failure;
7756
ff1b6e69
JB		 7757 nla_nest_end(msg, nl_wowlan);
7758 }
7759
7760 genlmsg_end(msg, hdr);
7761 return genlmsg_reply(msg, info);
7762
7763nla_put_failure:
7764 nlmsg_free(msg);
7765 return -ENOBUFS;
7766}
7767
2a0e047e
JB		 7768static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7769 struct nlattr *attr,
7770 struct cfg80211_wowlan *trig)
7771{
7772 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7773 struct cfg80211_wowlan_tcp *cfg;
7774 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7775 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7776 u32 size;
7777 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7778 int err, port;
7779
964dc9e2 7780 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7781 return -EINVAL;
7782
7783 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7784 nla_data(attr), nla_len(attr),
7785 nl80211_wowlan_tcp_policy);
7786 if (err)
7787 return err;
7788
7789 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7790 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7791 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7792 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7793 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7794 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7795 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7796 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7797 return -EINVAL;
7798
7799 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 7800 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 7801 return -EINVAL;
7802
7803 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 7804 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 7805 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7806 return -EINVAL;
7807
7808 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 7809 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 7810 return -EINVAL;
7811
7812 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7813 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7814 return -EINVAL;
7815
7816 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7817 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7818
7819 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7820 tokens_size = tokln - sizeof(*tok);
7821
7822 if (!tok->len || tokens_size % tok->len)
7823 return -EINVAL;
964dc9e2 7824 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 7825 return -EINVAL;
964dc9e2 7826 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 7827 return -EINVAL;
964dc9e2 7828 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 7829 return -EINVAL;
964dc9e2 7830 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 7831 return -EINVAL;
7832 if (tok->offset + tok->len > data_size)
7833 return -EINVAL;
7834 }
7835
7836 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7837 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 7838 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 7839 return -EINVAL;
7840 if (seq->len == 0 || seq->len > 4)
7841 return -EINVAL;
7842 if (seq->len + seq->offset > data_size)
7843 return -EINVAL;
7844 }
7845
7846 size = sizeof(*cfg);
7847 size += data_size;
7848 size += wake_size + wake_mask_size;
7849 size += tokens_size;
7850
7851 cfg = kzalloc(size, GFP_KERNEL);
7852 if (!cfg)
7853 return -ENOMEM;
7854 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7855 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7856 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7857 ETH_ALEN);
7858 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7859 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7860 else
7861 port = 0;
7862#ifdef CONFIG_INET
7863 /* allocate a socket and port for it and use it */
7864 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7865 IPPROTO_TCP, &cfg->sock, 1);
7866 if (err) {
7867 kfree(cfg);
7868 return err;
7869 }
7870 if (inet_csk_get_port(cfg->sock->sk, port)) {
7871 sock_release(cfg->sock);
7872 kfree(cfg);
7873 return -EADDRINUSE;
7874 }
7875 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7876#else
7877 if (!port) {
7878 kfree(cfg);
7879 return -EINVAL;
7880 }
7881 cfg->src_port = port;
7882#endif
7883
7884 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7885 cfg->payload_len = data_size;
7886 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7887 memcpy((void *)cfg->payload,
7888 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7889 data_size);
7890 if (seq)
7891 cfg->payload_seq = *seq;
7892 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7893 cfg->wake_len = wake_size;
7894 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7895 memcpy((void *)cfg->wake_data,
7896 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7897 wake_size);
7898 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7899 data_size + wake_size;
7900 memcpy((void *)cfg->wake_mask,
7901 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7902 wake_mask_size);
7903 if (tok) {
7904 cfg->tokens_size = tokens_size;
7905 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7906 }
7907
7908 trig->tcp = cfg;
7909
7910 return 0;
7911}
7912
ff1b6e69
JB		 7913static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7914{
7915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7916 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7917 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7918 struct cfg80211_wowlan *ntrig;
964dc9e2 7919 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 7920 int err, i;
6abb9cb9 7921 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 7922
964dc9e2 7923 if (!wowlan)
ff1b6e69
JB		 7924 return -EOPNOTSUPP;
7925
ae33bd81
JB		 7926 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7927 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7928 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 7929 goto set_wakeup;
7930 }
ff1b6e69
JB		 7931
7932 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7933 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7934 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7935 nl80211_wowlan_policy);
7936 if (err)
7937 return err;
7938
7939 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7940 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7941 return -EINVAL;
7942 new_triggers.any = true;
7943 }
7944
7945 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7946 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7947 return -EINVAL;
7948 new_triggers.disconnect = true;
7949 }
7950
7951 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7952 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7953 return -EINVAL;
7954 new_triggers.magic_pkt = true;
7955 }
7956
77dbbb13
JB		 7957 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7958 return -EINVAL;
7959
7960 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7961 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7962 return -EINVAL;
7963 new_triggers.gtk_rekey_failure = true;
7964 }
7965
7966 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7967 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7968 return -EINVAL;
7969 new_triggers.eap_identity_req = true;
7970 }
7971
7972 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7973 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7974 return -EINVAL;
7975 new_triggers.four_way_handshake = true;
7976 }
7977
7978 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7979 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7980 return -EINVAL;
7981 new_triggers.rfkill_release = true;
7982 }
7983
ff1b6e69
JB		 7984 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7985 struct nlattr *pat;
7986 int n_patterns = 0;
bb92d199 7987 int rem, pat_len, mask_len, pkt_offset;
50ac6607 7988 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 7989
7990 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7991 rem)
7992 n_patterns++;
7993 if (n_patterns > wowlan->n_patterns)
7994 return -EINVAL;
7995
7996 new_triggers.patterns = kcalloc(n_patterns,
7997 sizeof(new_triggers.patterns[0]),
7998 GFP_KERNEL);
7999 if (!new_triggers.patterns)
8000 return -ENOMEM;
8001
8002 new_triggers.n_patterns = n_patterns;
8003 i = 0;
8004
8005 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8006 rem) {
50ac6607
AK		 8007 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8008 nla_len(pat), NULL);
ff1b6e69 8009 err = -EINVAL;
50ac6607
AK		 8010 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8011 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8012 goto error;
50ac6607 8013 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8014 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8015 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8016 goto error;
8017 if (pat_len > wowlan->pattern_max_len ||
8018 pat_len < wowlan->pattern_min_len)
8019 goto error;
8020
50ac6607 8021 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8022 pkt_offset = 0;
8023 else
8024 pkt_offset = nla_get_u32(
50ac6607 8025 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8026 if (pkt_offset > wowlan->max_pkt_offset)
8027 goto error;
8028 new_triggers.patterns[i].pkt_offset = pkt_offset;
8029
ff1b6e69
JB		 8030 new_triggers.patterns[i].mask =
8031 kmalloc(mask_len + pat_len, GFP_KERNEL);
8032 if (!new_triggers.patterns[i].mask) {
8033 err = -ENOMEM;
8034 goto error;
8035 }
8036 new_triggers.patterns[i].pattern =
8037 new_triggers.patterns[i].mask + mask_len;
8038 memcpy(new_triggers.patterns[i].mask,
50ac6607 8039 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8040 mask_len);
8041 new_triggers.patterns[i].pattern_len = pat_len;
8042 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8043 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8044 pat_len);
8045 i++;
8046 }
8047 }
8048
2a0e047e
JB		 8049 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8050 err = nl80211_parse_wowlan_tcp(
8051 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8052 &new_triggers);
8053 if (err)
8054 goto error;
8055 }
8056
ae33bd81
JB		 8057 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8058 if (!ntrig) {
8059 err = -ENOMEM;
8060 goto error;
ff1b6e69 8061 }
ae33bd81 8062 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8063 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8064
ae33bd81 8065 set_wakeup:
6abb9cb9
JB		 8066 if (rdev->ops->set_wakeup &&
8067 prev_enabled != !!rdev->wiphy.wowlan_config)
8068 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8069
ff1b6e69
JB		 8070 return 0;
8071 error:
8072 for (i = 0; i < new_triggers.n_patterns; i++)
8073 kfree(new_triggers.patterns[i].mask);
8074 kfree(new_triggers.patterns);
2a0e047e
JB		 8075 if (new_triggers.tcp && new_triggers.tcp->sock)
8076 sock_release(new_triggers.tcp->sock);
8077 kfree(new_triggers.tcp);
ff1b6e69
JB		 8078 return err;
8079}
dfb89c56 8080#endif
ff1b6e69 8081
be29b99a
AK		 8082static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8083 struct cfg80211_registered_device *rdev)
8084{
8085 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8086 int i, j, pat_len;
8087 struct cfg80211_coalesce_rules *rule;
8088
8089 if (!rdev->coalesce->n_rules)
8090 return 0;
8091
8092 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8093 if (!nl_rules)
8094 return -ENOBUFS;
8095
8096 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8097 nl_rule = nla_nest_start(msg, i + 1);
8098 if (!nl_rule)
8099 return -ENOBUFS;
8100
8101 rule = &rdev->coalesce->rules[i];
8102 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8103 rule->delay))
8104 return -ENOBUFS;
8105
8106 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8107 rule->condition))
8108 return -ENOBUFS;
8109
8110 nl_pats = nla_nest_start(msg,
8111 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8112 if (!nl_pats)
8113 return -ENOBUFS;
8114
8115 for (j = 0; j < rule->n_patterns; j++) {
8116 nl_pat = nla_nest_start(msg, j + 1);
8117 if (!nl_pat)
8118 return -ENOBUFS;
8119 pat_len = rule->patterns[j].pattern_len;
8120 if (nla_put(msg, NL80211_PKTPAT_MASK,
8121 DIV_ROUND_UP(pat_len, 8),
8122 rule->patterns[j].mask) ||
8123 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8124 rule->patterns[j].pattern) ||
8125 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8126 rule->patterns[j].pkt_offset))
8127 return -ENOBUFS;
8128 nla_nest_end(msg, nl_pat);
8129 }
8130 nla_nest_end(msg, nl_pats);
8131 nla_nest_end(msg, nl_rule);
8132 }
8133 nla_nest_end(msg, nl_rules);
8134
8135 return 0;
8136}
8137
8138static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8139{
8140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8141 struct sk_buff *msg;
8142 void *hdr;
8143
8144 if (!rdev->wiphy.coalesce)
8145 return -EOPNOTSUPP;
8146
8147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8148 if (!msg)
8149 return -ENOMEM;
8150
8151 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8152 NL80211_CMD_GET_COALESCE);
8153 if (!hdr)
8154 goto nla_put_failure;
8155
8156 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8157 goto nla_put_failure;
8158
8159 genlmsg_end(msg, hdr);
8160 return genlmsg_reply(msg, info);
8161
8162nla_put_failure:
8163 nlmsg_free(msg);
8164 return -ENOBUFS;
8165}
8166
8167void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8168{
8169 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8170 int i, j;
8171 struct cfg80211_coalesce_rules *rule;
8172
8173 if (!coalesce)
8174 return;
8175
8176 for (i = 0; i < coalesce->n_rules; i++) {
8177 rule = &coalesce->rules[i];
8178 for (j = 0; j < rule->n_patterns; j++)
8179 kfree(rule->patterns[j].mask);
8180 kfree(rule->patterns);
8181 }
8182 kfree(coalesce->rules);
8183 kfree(coalesce);
8184 rdev->coalesce = NULL;
8185}
8186
8187static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8188 struct nlattr *rule,
8189 struct cfg80211_coalesce_rules *new_rule)
8190{
8191 int err, i;
8192 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8193 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8194 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8195 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8196
8197 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8198 nla_len(rule), nl80211_coalesce_policy);
8199 if (err)
8200 return err;
8201
8202 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8203 new_rule->delay =
8204 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8205 if (new_rule->delay > coalesce->max_delay)
8206 return -EINVAL;
8207
8208 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8209 new_rule->condition =
8210 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8211 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8212 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8213 return -EINVAL;
8214
8215 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8216 return -EINVAL;
8217
8218 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8219 rem)
8220 n_patterns++;
8221 if (n_patterns > coalesce->n_patterns)
8222 return -EINVAL;
8223
8224 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8225 GFP_KERNEL);
8226 if (!new_rule->patterns)
8227 return -ENOMEM;
8228
8229 new_rule->n_patterns = n_patterns;
8230 i = 0;
8231
8232 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8233 rem) {
8234 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8235 nla_len(pat), NULL);
8236 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8237 !pat_tb[NL80211_PKTPAT_PATTERN])
8238 return -EINVAL;
8239 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8240 mask_len = DIV_ROUND_UP(pat_len, 8);
8241 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8242 return -EINVAL;
8243 if (pat_len > coalesce->pattern_max_len ||
8244 pat_len < coalesce->pattern_min_len)
8245 return -EINVAL;
8246
8247 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8248 pkt_offset = 0;
8249 else
8250 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8251 if (pkt_offset > coalesce->max_pkt_offset)
8252 return -EINVAL;
8253 new_rule->patterns[i].pkt_offset = pkt_offset;
8254
8255 new_rule->patterns[i].mask =
8256 kmalloc(mask_len + pat_len, GFP_KERNEL);
8257 if (!new_rule->patterns[i].mask)
8258 return -ENOMEM;
8259 new_rule->patterns[i].pattern =
8260 new_rule->patterns[i].mask + mask_len;
8261 memcpy(new_rule->patterns[i].mask,
8262 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8263 new_rule->patterns[i].pattern_len = pat_len;
8264 memcpy(new_rule->patterns[i].pattern,
8265 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8266 i++;
8267 }
8268
8269 return 0;
8270}
8271
8272static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8273{
8274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8275 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8276 struct cfg80211_coalesce new_coalesce = {};
8277 struct cfg80211_coalesce *n_coalesce;
8278 int err, rem_rule, n_rules = 0, i, j;
8279 struct nlattr *rule;
8280 struct cfg80211_coalesce_rules *tmp_rule;
8281
8282 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8283 return -EOPNOTSUPP;
8284
8285 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8286 cfg80211_rdev_free_coalesce(rdev);
8287 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8288 return 0;
8289 }
8290
8291 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8292 rem_rule)
8293 n_rules++;
8294 if (n_rules > coalesce->n_rules)
8295 return -EINVAL;
8296
8297 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8298 GFP_KERNEL);
8299 if (!new_coalesce.rules)
8300 return -ENOMEM;
8301
8302 new_coalesce.n_rules = n_rules;
8303 i = 0;
8304
8305 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8306 rem_rule) {
8307 err = nl80211_parse_coalesce_rule(rdev, rule,
8308 &new_coalesce.rules[i]);
8309 if (err)
8310 goto error;
8311
8312 i++;
8313 }
8314
8315 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8316 if (err)
8317 goto error;
8318
8319 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8320 if (!n_coalesce) {
8321 err = -ENOMEM;
8322 goto error;
8323 }
8324 cfg80211_rdev_free_coalesce(rdev);
8325 rdev->coalesce = n_coalesce;
8326
8327 return 0;
8328error:
8329 for (i = 0; i < new_coalesce.n_rules; i++) {
8330 tmp_rule = &new_coalesce.rules[i];
8331 for (j = 0; j < tmp_rule->n_patterns; j++)
8332 kfree(tmp_rule->patterns[j].mask);
8333 kfree(tmp_rule->patterns);
8334 }
8335 kfree(new_coalesce.rules);
8336
8337 return err;
8338}
8339
e5497d76
JB		 8340static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8341{
8342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8343 struct net_device *dev = info->user_ptr[1];
8344 struct wireless_dev *wdev = dev->ieee80211_ptr;
8345 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8346 struct cfg80211_gtk_rekey_data rekey_data;
8347 int err;
8348
8349 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8350 return -EINVAL;
8351
8352 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8353 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8354 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8355 nl80211_rekey_policy);
8356 if (err)
8357 return err;
8358
8359 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8360 return -ERANGE;
8361 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8362 return -ERANGE;
8363 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8364 return -ERANGE;
8365
8366 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8367 NL80211_KEK_LEN);
8368 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8369 NL80211_KCK_LEN);
8370 memcpy(rekey_data.replay_ctr,
8371 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8372 NL80211_REPLAY_CTR_LEN);
8373
8374 wdev_lock(wdev);
8375 if (!wdev->current_bss) {
8376 err = -ENOTCONN;
8377 goto out;
8378 }
8379
8380 if (!rdev->ops->set_rekey_data) {
8381 err = -EOPNOTSUPP;
8382 goto out;
8383 }
8384
e35e4d28 8385 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8386 out:
8387 wdev_unlock(wdev);
8388 return err;
8389}
8390
28946da7
JB		 8391static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8392 struct genl_info *info)
8393{
8394 struct net_device *dev = info->user_ptr[1];
8395 struct wireless_dev *wdev = dev->ieee80211_ptr;
8396
8397 if (wdev->iftype != NL80211_IFTYPE_AP &&
8398 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8399 return -EINVAL;
8400
15e47304 8401 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8402 return -EBUSY;
8403
15e47304 8404 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8405 return 0;
8406}
8407
7f6cf311
JB		 8408static int nl80211_probe_client(struct sk_buff *skb,
8409 struct genl_info *info)
8410{
8411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8412 struct net_device *dev = info->user_ptr[1];
8413 struct wireless_dev *wdev = dev->ieee80211_ptr;
8414 struct sk_buff *msg;
8415 void *hdr;
8416 const u8 *addr;
8417 u64 cookie;
8418 int err;
8419
8420 if (wdev->iftype != NL80211_IFTYPE_AP &&
8421 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8422 return -EOPNOTSUPP;
8423
8424 if (!info->attrs[NL80211_ATTR_MAC])
8425 return -EINVAL;
8426
8427 if (!rdev->ops->probe_client)
8428 return -EOPNOTSUPP;
8429
8430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8431 if (!msg)
8432 return -ENOMEM;
8433
15e47304 8434 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8435 NL80211_CMD_PROBE_CLIENT);
8436
8437 if (IS_ERR(hdr)) {
8438 err = PTR_ERR(hdr);
8439 goto free_msg;
8440 }
8441
8442 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8443
e35e4d28 8444 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8445 if (err)
8446 goto free_msg;
8447
9360ffd1
DM		 8448 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8449 goto nla_put_failure;
7f6cf311
JB		 8450
8451 genlmsg_end(msg, hdr);
8452
8453 return genlmsg_reply(msg, info);
8454
8455 nla_put_failure:
8456 err = -ENOBUFS;
8457 free_msg:
8458 nlmsg_free(msg);
8459 return err;
8460}
8461
5e760230
JB		 8462static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8463{
8464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8465 struct cfg80211_beacon_registration *reg, *nreg;
8466 int rv;
5e760230
JB		 8467
8468 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8469 return -EOPNOTSUPP;
8470
37c73b5f
BG		 8471 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8472 if (!nreg)
8473 return -ENOMEM;
8474
8475 /* First, check if already registered. */
8476 spin_lock_bh(&rdev->beacon_registrations_lock);
8477 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8478 if (reg->nlportid == info->snd_portid) {
8479 rv = -EALREADY;
8480 goto out_err;
8481 }
8482 }
8483 /* Add it to the list */
8484 nreg->nlportid = info->snd_portid;
8485 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8486
37c73b5f 8487 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8488
8489 return 0;
37c73b5f
BG		 8490out_err:
8491 spin_unlock_bh(&rdev->beacon_registrations_lock);
8492 kfree(nreg);
8493 return rv;
5e760230
JB		 8494}
8495
98104fde
JB		 8496static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8497{
8498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8499 struct wireless_dev *wdev = info->user_ptr[1];
8500 int err;
8501
8502 if (!rdev->ops->start_p2p_device)
8503 return -EOPNOTSUPP;
8504
8505 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8506 return -EOPNOTSUPP;
8507
8508 if (wdev->p2p_started)
8509 return 0;
8510
98104fde 8511 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8512 if (err)
8513 return err;
8514
eeb126e9 8515 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8516 if (err)
8517 return err;
8518
8519 wdev->p2p_started = true;
98104fde 8520 rdev->opencount++;
98104fde
JB		 8521
8522 return 0;
8523}
8524
8525static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8526{
8527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8528 struct wireless_dev *wdev = info->user_ptr[1];
8529
8530 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8531 return -EOPNOTSUPP;
8532
8533 if (!rdev->ops->stop_p2p_device)
8534 return -EOPNOTSUPP;
8535
f9f47529 8536 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8537
8538 return 0;
8539}
8540
3713b4e3
JB		 8541static int nl80211_get_protocol_features(struct sk_buff *skb,
8542 struct genl_info *info)
8543{
8544 void *hdr;
8545 struct sk_buff *msg;
8546
8547 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8548 if (!msg)
8549 return -ENOMEM;
8550
8551 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8552 NL80211_CMD_GET_PROTOCOL_FEATURES);
8553 if (!hdr)
8554 goto nla_put_failure;
8555
8556 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8557 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8558 goto nla_put_failure;
8559
8560 genlmsg_end(msg, hdr);
8561 return genlmsg_reply(msg, info);
8562
8563 nla_put_failure:
8564 kfree_skb(msg);
8565 return -ENOBUFS;
8566}
8567
355199e0
JM		 8568static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8569{
8570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8571 struct cfg80211_update_ft_ies_params ft_params;
8572 struct net_device *dev = info->user_ptr[1];
8573
8574 if (!rdev->ops->update_ft_ies)
8575 return -EOPNOTSUPP;
8576
8577 if (!info->attrs[NL80211_ATTR_MDID] ||
8578 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8579 return -EINVAL;
8580
8581 memset(&ft_params, 0, sizeof(ft_params));
8582 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8583 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8584 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8585
8586 return rdev_update_ft_ies(rdev, dev, &ft_params);
8587}
8588
5de17984
AS		 8589static int nl80211_crit_protocol_start(struct sk_buff *skb,
8590 struct genl_info *info)
8591{
8592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8593 struct wireless_dev *wdev = info->user_ptr[1];
8594 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8595 u16 duration;
8596 int ret;
8597
8598 if (!rdev->ops->crit_proto_start)
8599 return -EOPNOTSUPP;
8600
8601 if (WARN_ON(!rdev->ops->crit_proto_stop))
8602 return -EINVAL;
8603
8604 if (rdev->crit_proto_nlportid)
8605 return -EBUSY;
8606
8607 /* determine protocol if provided */
8608 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8609 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8610
8611 if (proto >= NUM_NL80211_CRIT_PROTO)
8612 return -EINVAL;
8613
8614 /* timeout must be provided */
8615 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8616 return -EINVAL;
8617
8618 duration =
8619 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8620
8621 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8622 return -ERANGE;
8623
8624 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8625 if (!ret)
8626 rdev->crit_proto_nlportid = info->snd_portid;
8627
8628 return ret;
8629}
8630
8631static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8632 struct genl_info *info)
8633{
8634 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8635 struct wireless_dev *wdev = info->user_ptr[1];
8636
8637 if (!rdev->ops->crit_proto_stop)
8638 return -EOPNOTSUPP;
8639
8640 if (rdev->crit_proto_nlportid) {
8641 rdev->crit_proto_nlportid = 0;
8642 rdev_crit_proto_stop(rdev, wdev);
8643 }
8644 return 0;
8645}
8646
4c476991
JB		 8647#define NL80211_FLAG_NEED_WIPHY 0x01
8648#define NL80211_FLAG_NEED_NETDEV 0x02
8649#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8650#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8651#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8652 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8653#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8654/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8655#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8656 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8657
8658static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8659 struct genl_info *info)
8660{
8661 struct cfg80211_registered_device *rdev;
89a54e48 8662 struct wireless_dev *wdev;
4c476991 8663 struct net_device *dev;
4c476991
JB		 8664 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8665
8666 if (rtnl)
8667 rtnl_lock();
8668
8669 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8670 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8671 if (IS_ERR(rdev)) {
8672 if (rtnl)
8673 rtnl_unlock();
8674 return PTR_ERR(rdev);
8675 }
8676 info->user_ptr[0] = rdev;
1bf614ef
JB		 8677 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8678 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8679 ASSERT_RTNL();
8680
89a54e48
JB		 8681 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8682 info->attrs);
8683 if (IS_ERR(wdev)) {
4c476991
JB		 8684 if (rtnl)
8685 rtnl_unlock();
89a54e48 8686 return PTR_ERR(wdev);
4c476991 8687 }
89a54e48 8688
89a54e48
JB		 8689 dev = wdev->netdev;
8690 rdev = wiphy_to_dev(wdev->wiphy);
8691
1bf614ef
JB		 8692 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8693 if (!dev) {
1bf614ef
JB		 8694 if (rtnl)
8695 rtnl_unlock();
8696 return -EINVAL;
8697 }
8698
8699 info->user_ptr[1] = dev;
8700 } else {
8701 info->user_ptr[1] = wdev;
41265714 8702 }
1bf614ef
JB		 8703
8704 if (dev) {
8705 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8706 !netif_running(dev)) {
1bf614ef
JB		 8707 if (rtnl)
8708 rtnl_unlock();
8709 return -ENETDOWN;
8710 }
8711
8712 dev_hold(dev);
98104fde
JB		 8713 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8714 if (!wdev->p2p_started) {
98104fde
JB		 8715 if (rtnl)
8716 rtnl_unlock();
8717 return -ENETDOWN;
8718 }
41265714 8719 }
89a54e48 8720
4c476991 8721 info->user_ptr[0] = rdev;
4c476991
JB		 8722 }
8723
8724 return 0;
8725}
8726
8727static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8728 struct genl_info *info)
8729{
1bf614ef
JB		 8730 if (info->user_ptr[1]) {
8731 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8732 struct wireless_dev *wdev = info->user_ptr[1];
8733
8734 if (wdev->netdev)
8735 dev_put(wdev->netdev);
8736 } else {
8737 dev_put(info->user_ptr[1]);
8738 }
8739 }
4c476991
JB		 8740 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8741 rtnl_unlock();
8742}
8743
55682965
JB		 8744static struct genl_ops nl80211_ops[] = {
8745 {
8746 .cmd = NL80211_CMD_GET_WIPHY,
8747 .doit = nl80211_get_wiphy,
8748 .dumpit = nl80211_dump_wiphy,
86e8cf98 8749 .done = nl80211_dump_wiphy_done,
55682965
JB		 8750 .policy = nl80211_policy,
8751 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8752 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8753 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8754 },
8755 {
8756 .cmd = NL80211_CMD_SET_WIPHY,
8757 .doit = nl80211_set_wiphy,
8758 .policy = nl80211_policy,
8759 .flags = GENL_ADMIN_PERM,
4c476991 8760 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8761 },
8762 {
8763 .cmd = NL80211_CMD_GET_INTERFACE,
8764 .doit = nl80211_get_interface,
8765 .dumpit = nl80211_dump_interface,
8766 .policy = nl80211_policy,
8767 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8768 .internal_flags = NL80211_FLAG_NEED_WDEV |
8769 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8770 },
8771 {
8772 .cmd = NL80211_CMD_SET_INTERFACE,
8773 .doit = nl80211_set_interface,
8774 .policy = nl80211_policy,
8775 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8776 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8777 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8778 },
8779 {
8780 .cmd = NL80211_CMD_NEW_INTERFACE,
8781 .doit = nl80211_new_interface,
8782 .policy = nl80211_policy,
8783 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8784 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8785 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8786 },
8787 {
8788 .cmd = NL80211_CMD_DEL_INTERFACE,
8789 .doit = nl80211_del_interface,
8790 .policy = nl80211_policy,
41ade00f 8791 .flags = GENL_ADMIN_PERM,
84efbb84 8792 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8793 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8794 },
8795 {
8796 .cmd = NL80211_CMD_GET_KEY,
8797 .doit = nl80211_get_key,
8798 .policy = nl80211_policy,
8799 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8801 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8802 },
8803 {
8804 .cmd = NL80211_CMD_SET_KEY,
8805 .doit = nl80211_set_key,
8806 .policy = nl80211_policy,
8807 .flags = GENL_ADMIN_PERM,
41265714 8808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8809 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8810 },
8811 {
8812 .cmd = NL80211_CMD_NEW_KEY,
8813 .doit = nl80211_new_key,
8814 .policy = nl80211_policy,
8815 .flags = GENL_ADMIN_PERM,
41265714 8816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8817 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8818 },
8819 {
8820 .cmd = NL80211_CMD_DEL_KEY,
8821 .doit = nl80211_del_key,
8822 .policy = nl80211_policy,
55682965 8823 .flags = GENL_ADMIN_PERM,
41265714 8824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8825 NL80211_FLAG_NEED_RTNL,
55682965 8826 },
ed1b6cc7
JB		 8827 {
8828 .cmd = NL80211_CMD_SET_BEACON,
8829 .policy = nl80211_policy,
8830 .flags = GENL_ADMIN_PERM,
8860020e 8831 .doit = nl80211_set_beacon,
2b5f8b0b 8832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8833 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8834 },
8835 {
8860020e 8836 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8837 .policy = nl80211_policy,
8838 .flags = GENL_ADMIN_PERM,
8860020e 8839 .doit = nl80211_start_ap,
2b5f8b0b 8840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8841 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8842 },
8843 {
8860020e 8844 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8845 .policy = nl80211_policy,
8846 .flags = GENL_ADMIN_PERM,
8860020e 8847 .doit = nl80211_stop_ap,
2b5f8b0b 8848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8849 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8850 },
5727ef1b
JB		 8851 {
8852 .cmd = NL80211_CMD_GET_STATION,
8853 .doit = nl80211_get_station,
2ec600d6 8854 .dumpit = nl80211_dump_station,
5727ef1b 8855 .policy = nl80211_policy,
4c476991
JB		 8856 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8857 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8858 },
8859 {
8860 .cmd = NL80211_CMD_SET_STATION,
8861 .doit = nl80211_set_station,
8862 .policy = nl80211_policy,
8863 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8864 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8865 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8866 },
8867 {
8868 .cmd = NL80211_CMD_NEW_STATION,
8869 .doit = nl80211_new_station,
8870 .policy = nl80211_policy,
8871 .flags = GENL_ADMIN_PERM,
41265714 8872 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8873 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8874 },
8875 {
8876 .cmd = NL80211_CMD_DEL_STATION,
8877 .doit = nl80211_del_station,
8878 .policy = nl80211_policy,
2ec600d6 8879 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8880 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8881 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8882 },
8883 {
8884 .cmd = NL80211_CMD_GET_MPATH,
8885 .doit = nl80211_get_mpath,
8886 .dumpit = nl80211_dump_mpath,
8887 .policy = nl80211_policy,
8888 .flags = GENL_ADMIN_PERM,
41265714 8889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8890 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8891 },
8892 {
8893 .cmd = NL80211_CMD_SET_MPATH,
8894 .doit = nl80211_set_mpath,
8895 .policy = nl80211_policy,
8896 .flags = GENL_ADMIN_PERM,
41265714 8897 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8898 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8899 },
8900 {
8901 .cmd = NL80211_CMD_NEW_MPATH,
8902 .doit = nl80211_new_mpath,
8903 .policy = nl80211_policy,
8904 .flags = GENL_ADMIN_PERM,
41265714 8905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8906 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8907 },
8908 {
8909 .cmd = NL80211_CMD_DEL_MPATH,
8910 .doit = nl80211_del_mpath,
8911 .policy = nl80211_policy,
9f1ba906 8912 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8914 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8915 },
8916 {
8917 .cmd = NL80211_CMD_SET_BSS,
8918 .doit = nl80211_set_bss,
8919 .policy = nl80211_policy,
b2e1b302 8920 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8922 NL80211_FLAG_NEED_RTNL,
b2e1b302 8923 },
f130347c
LR		 8924 {
8925 .cmd = NL80211_CMD_GET_REG,
8926 .doit = nl80211_get_reg,
8927 .policy = nl80211_policy,
5fe231e8 8928 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 8929 /* can be retrieved by unprivileged users */
8930 },
b2e1b302
LR		 8931 {
8932 .cmd = NL80211_CMD_SET_REG,
8933 .doit = nl80211_set_reg,
8934 .policy = nl80211_policy,
8935 .flags = GENL_ADMIN_PERM,
5fe231e8 8936 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 8937 },
8938 {
8939 .cmd = NL80211_CMD_REQ_SET_REG,
8940 .doit = nl80211_req_set_reg,
8941 .policy = nl80211_policy,
93da9cc1 8942 .flags = GENL_ADMIN_PERM,
8943 },
8944 {
24bdd9f4
JC		 8945 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8946 .doit = nl80211_get_mesh_config,
93da9cc1 8947 .policy = nl80211_policy,
8948 /* can be retrieved by unprivileged users */
2b5f8b0b 8949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8950 NL80211_FLAG_NEED_RTNL,
93da9cc1 8951 },
8952 {
24bdd9f4
JC		 8953 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8954 .doit = nl80211_update_mesh_config,
93da9cc1 8955 .policy = nl80211_policy,
9aed3cc1 8956 .flags = GENL_ADMIN_PERM,
29cbe68c 8957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8958 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8959 },
2a519311
JB		 8960 {
8961 .cmd = NL80211_CMD_TRIGGER_SCAN,
8962 .doit = nl80211_trigger_scan,
8963 .policy = nl80211_policy,
8964 .flags = GENL_ADMIN_PERM,
fd014284 8965 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8966 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8967 },
8968 {
8969 .cmd = NL80211_CMD_GET_SCAN,
8970 .policy = nl80211_policy,
8971 .dumpit = nl80211_dump_scan,
8972 },
807f8a8c
LC		 8973 {
8974 .cmd = NL80211_CMD_START_SCHED_SCAN,
8975 .doit = nl80211_start_sched_scan,
8976 .policy = nl80211_policy,
8977 .flags = GENL_ADMIN_PERM,
8978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8979 NL80211_FLAG_NEED_RTNL,
8980 },
8981 {
8982 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8983 .doit = nl80211_stop_sched_scan,
8984 .policy = nl80211_policy,
8985 .flags = GENL_ADMIN_PERM,
8986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8987 NL80211_FLAG_NEED_RTNL,
8988 },
636a5d36
JM		 8989 {
8990 .cmd = NL80211_CMD_AUTHENTICATE,
8991 .doit = nl80211_authenticate,
8992 .policy = nl80211_policy,
8993 .flags = GENL_ADMIN_PERM,
41265714 8994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8995 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8996 },
8997 {
8998 .cmd = NL80211_CMD_ASSOCIATE,
8999 .doit = nl80211_associate,
9000 .policy = nl80211_policy,
9001 .flags = GENL_ADMIN_PERM,
41265714 9002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9003 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9004 },
9005 {
9006 .cmd = NL80211_CMD_DEAUTHENTICATE,
9007 .doit = nl80211_deauthenticate,
9008 .policy = nl80211_policy,
9009 .flags = GENL_ADMIN_PERM,
41265714 9010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9011 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9012 },
9013 {
9014 .cmd = NL80211_CMD_DISASSOCIATE,
9015 .doit = nl80211_disassociate,
9016 .policy = nl80211_policy,
9017 .flags = GENL_ADMIN_PERM,
41265714 9018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9019 NL80211_FLAG_NEED_RTNL,
636a5d36 9020 },
04a773ad
JB		 9021 {
9022 .cmd = NL80211_CMD_JOIN_IBSS,
9023 .doit = nl80211_join_ibss,
9024 .policy = nl80211_policy,
9025 .flags = GENL_ADMIN_PERM,
41265714 9026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9027 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9028 },
9029 {
9030 .cmd = NL80211_CMD_LEAVE_IBSS,
9031 .doit = nl80211_leave_ibss,
9032 .policy = nl80211_policy,
9033 .flags = GENL_ADMIN_PERM,
41265714 9034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9035 NL80211_FLAG_NEED_RTNL,
04a773ad 9036 },
aff89a9b
JB		 9037#ifdef CONFIG_NL80211_TESTMODE
9038 {
9039 .cmd = NL80211_CMD_TESTMODE,
9040 .doit = nl80211_testmode_do,
71063f0e 9041 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9042 .policy = nl80211_policy,
9043 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9044 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9045 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9046 },
9047#endif
b23aa676
SO		 9048 {
9049 .cmd = NL80211_CMD_CONNECT,
9050 .doit = nl80211_connect,
9051 .policy = nl80211_policy,
9052 .flags = GENL_ADMIN_PERM,
41265714 9053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9054 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9055 },
9056 {
9057 .cmd = NL80211_CMD_DISCONNECT,
9058 .doit = nl80211_disconnect,
9059 .policy = nl80211_policy,
9060 .flags = GENL_ADMIN_PERM,
41265714 9061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9062 NL80211_FLAG_NEED_RTNL,
b23aa676 9063 },
463d0183
JB		 9064 {
9065 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9066 .doit = nl80211_wiphy_netns,
9067 .policy = nl80211_policy,
9068 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9069 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9070 NL80211_FLAG_NEED_RTNL,
463d0183 9071 },
61fa713c
HS		 9072 {
9073 .cmd = NL80211_CMD_GET_SURVEY,
9074 .policy = nl80211_policy,
9075 .dumpit = nl80211_dump_survey,
9076 },
67fbb16b
SO		 9077 {
9078 .cmd = NL80211_CMD_SET_PMKSA,
9079 .doit = nl80211_setdel_pmksa,
9080 .policy = nl80211_policy,
9081 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9082 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9083 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9084 },
9085 {
9086 .cmd = NL80211_CMD_DEL_PMKSA,
9087 .doit = nl80211_setdel_pmksa,
9088 .policy = nl80211_policy,
9089 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9091 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9092 },
9093 {
9094 .cmd = NL80211_CMD_FLUSH_PMKSA,
9095 .doit = nl80211_flush_pmksa,
9096 .policy = nl80211_policy,
9097 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9098 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9099 NL80211_FLAG_NEED_RTNL,
67fbb16b 9100 },
9588bbd5
JM		 9101 {
9102 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9103 .doit = nl80211_remain_on_channel,
9104 .policy = nl80211_policy,
9105 .flags = GENL_ADMIN_PERM,
71bbc994 9106 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9107 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9108 },
9109 {
9110 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9111 .doit = nl80211_cancel_remain_on_channel,
9112 .policy = nl80211_policy,
9113 .flags = GENL_ADMIN_PERM,
71bbc994 9114 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9115 NL80211_FLAG_NEED_RTNL,
9588bbd5 9116 },
13ae75b1
JM		 9117 {
9118 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9119 .doit = nl80211_set_tx_bitrate_mask,
9120 .policy = nl80211_policy,
9121 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9122 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9123 NL80211_FLAG_NEED_RTNL,
13ae75b1 9124 },
026331c4 9125 {
2e161f78
JB		 9126 .cmd = NL80211_CMD_REGISTER_FRAME,
9127 .doit = nl80211_register_mgmt,
026331c4
JM		 9128 .policy = nl80211_policy,
9129 .flags = GENL_ADMIN_PERM,
71bbc994 9130 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9131 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9132 },
9133 {
2e161f78
JB		 9134 .cmd = NL80211_CMD_FRAME,
9135 .doit = nl80211_tx_mgmt,
026331c4 9136 .policy = nl80211_policy,
f7ca38df 9137 .flags = GENL_ADMIN_PERM,
71bbc994 9138 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9139 NL80211_FLAG_NEED_RTNL,
9140 },
9141 {
9142 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9143 .doit = nl80211_tx_mgmt_cancel_wait,
9144 .policy = nl80211_policy,
026331c4 9145 .flags = GENL_ADMIN_PERM,
71bbc994 9146 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9147 NL80211_FLAG_NEED_RTNL,
026331c4 9148 },
ffb9eb3d
KV		 9149 {
9150 .cmd = NL80211_CMD_SET_POWER_SAVE,
9151 .doit = nl80211_set_power_save,
9152 .policy = nl80211_policy,
9153 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9154 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9155 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9156 },
9157 {
9158 .cmd = NL80211_CMD_GET_POWER_SAVE,
9159 .doit = nl80211_get_power_save,
9160 .policy = nl80211_policy,
9161 /* can be retrieved by unprivileged users */
4c476991
JB		 9162 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9163 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9164 },
d6dc1a38
JO		 9165 {
9166 .cmd = NL80211_CMD_SET_CQM,
9167 .doit = nl80211_set_cqm,
9168 .policy = nl80211_policy,
9169 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9170 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9171 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9172 },
f444de05
JB		 9173 {
9174 .cmd = NL80211_CMD_SET_CHANNEL,
9175 .doit = nl80211_set_channel,
9176 .policy = nl80211_policy,
9177 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9178 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9179 NL80211_FLAG_NEED_RTNL,
f444de05 9180 },
e8347eba
BJ		 9181 {
9182 .cmd = NL80211_CMD_SET_WDS_PEER,
9183 .doit = nl80211_set_wds_peer,
9184 .policy = nl80211_policy,
9185 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9187 NL80211_FLAG_NEED_RTNL,
e8347eba 9188 },
29cbe68c
JB		 9189 {
9190 .cmd = NL80211_CMD_JOIN_MESH,
9191 .doit = nl80211_join_mesh,
9192 .policy = nl80211_policy,
9193 .flags = GENL_ADMIN_PERM,
9194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9195 NL80211_FLAG_NEED_RTNL,
9196 },
9197 {
9198 .cmd = NL80211_CMD_LEAVE_MESH,
9199 .doit = nl80211_leave_mesh,
9200 .policy = nl80211_policy,
9201 .flags = GENL_ADMIN_PERM,
9202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9203 NL80211_FLAG_NEED_RTNL,
9204 },
dfb89c56 9205#ifdef CONFIG_PM
ff1b6e69
JB		 9206 {
9207 .cmd = NL80211_CMD_GET_WOWLAN,
9208 .doit = nl80211_get_wowlan,
9209 .policy = nl80211_policy,
9210 /* can be retrieved by unprivileged users */
9211 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9212 NL80211_FLAG_NEED_RTNL,
9213 },
9214 {
9215 .cmd = NL80211_CMD_SET_WOWLAN,
9216 .doit = nl80211_set_wowlan,
9217 .policy = nl80211_policy,
9218 .flags = GENL_ADMIN_PERM,
9219 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9220 NL80211_FLAG_NEED_RTNL,
9221 },
dfb89c56 9222#endif
e5497d76
JB		 9223 {
9224 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9225 .doit = nl80211_set_rekey_data,
9226 .policy = nl80211_policy,
9227 .flags = GENL_ADMIN_PERM,
9228 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9229 NL80211_FLAG_NEED_RTNL,
9230 },
109086ce
AN		 9231 {
9232 .cmd = NL80211_CMD_TDLS_MGMT,
9233 .doit = nl80211_tdls_mgmt,
9234 .policy = nl80211_policy,
9235 .flags = GENL_ADMIN_PERM,
9236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9237 NL80211_FLAG_NEED_RTNL,
9238 },
9239 {
9240 .cmd = NL80211_CMD_TDLS_OPER,
9241 .doit = nl80211_tdls_oper,
9242 .policy = nl80211_policy,
9243 .flags = GENL_ADMIN_PERM,
9244 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9245 NL80211_FLAG_NEED_RTNL,
9246 },
28946da7
JB		 9247 {
9248 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9249 .doit = nl80211_register_unexpected_frame,
9250 .policy = nl80211_policy,
9251 .flags = GENL_ADMIN_PERM,
9252 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9253 NL80211_FLAG_NEED_RTNL,
9254 },
7f6cf311
JB		 9255 {
9256 .cmd = NL80211_CMD_PROBE_CLIENT,
9257 .doit = nl80211_probe_client,
9258 .policy = nl80211_policy,
9259 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9260 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9261 NL80211_FLAG_NEED_RTNL,
9262 },
5e760230
JB		 9263 {
9264 .cmd = NL80211_CMD_REGISTER_BEACONS,
9265 .doit = nl80211_register_beacons,
9266 .policy = nl80211_policy,
9267 .flags = GENL_ADMIN_PERM,
9268 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9269 NL80211_FLAG_NEED_RTNL,
9270 },
1d9d9213
SW		 9271 {
9272 .cmd = NL80211_CMD_SET_NOACK_MAP,
9273 .doit = nl80211_set_noack_map,
9274 .policy = nl80211_policy,
9275 .flags = GENL_ADMIN_PERM,
9276 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9277 NL80211_FLAG_NEED_RTNL,
9278 },
98104fde
JB		 9279 {
9280 .cmd = NL80211_CMD_START_P2P_DEVICE,
9281 .doit = nl80211_start_p2p_device,
9282 .policy = nl80211_policy,
9283 .flags = GENL_ADMIN_PERM,
9284 .internal_flags = NL80211_FLAG_NEED_WDEV |
9285 NL80211_FLAG_NEED_RTNL,
9286 },
9287 {
9288 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9289 .doit = nl80211_stop_p2p_device,
9290 .policy = nl80211_policy,
9291 .flags = GENL_ADMIN_PERM,
9292 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9293 NL80211_FLAG_NEED_RTNL,
9294 },
f4e583c8
AQ		 9295 {
9296 .cmd = NL80211_CMD_SET_MCAST_RATE,
9297 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9298 .policy = nl80211_policy,
9299 .flags = GENL_ADMIN_PERM,
9300 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9301 NL80211_FLAG_NEED_RTNL,
9302 },
9303 {
9304 .cmd = NL80211_CMD_SET_MAC_ACL,
9305 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9306 .policy = nl80211_policy,
9307 .flags = GENL_ADMIN_PERM,
9308 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9309 NL80211_FLAG_NEED_RTNL,
9310 },
04f39047
SW		 9311 {
9312 .cmd = NL80211_CMD_RADAR_DETECT,
9313 .doit = nl80211_start_radar_detection,
9314 .policy = nl80211_policy,
9315 .flags = GENL_ADMIN_PERM,
9316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9317 NL80211_FLAG_NEED_RTNL,
9318 },
3713b4e3
JB		 9319 {
9320 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9321 .doit = nl80211_get_protocol_features,
9322 .policy = nl80211_policy,
9323 },
355199e0
JM		 9324 {
9325 .cmd = NL80211_CMD_UPDATE_FT_IES,
9326 .doit = nl80211_update_ft_ies,
9327 .policy = nl80211_policy,
9328 .flags = GENL_ADMIN_PERM,
9329 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9330 NL80211_FLAG_NEED_RTNL,
9331 },
5de17984
AS		 9332 {
9333 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9334 .doit = nl80211_crit_protocol_start,
9335 .policy = nl80211_policy,
9336 .flags = GENL_ADMIN_PERM,
9337 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9338 NL80211_FLAG_NEED_RTNL,
9339 },
9340 {
9341 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9342 .doit = nl80211_crit_protocol_stop,
9343 .policy = nl80211_policy,
9344 .flags = GENL_ADMIN_PERM,
9345 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9346 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9347 },
9348 {
9349 .cmd = NL80211_CMD_GET_COALESCE,
9350 .doit = nl80211_get_coalesce,
9351 .policy = nl80211_policy,
9352 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9353 NL80211_FLAG_NEED_RTNL,
9354 },
9355 {
9356 .cmd = NL80211_CMD_SET_COALESCE,
9357 .doit = nl80211_set_coalesce,
9358 .policy = nl80211_policy,
9359 .flags = GENL_ADMIN_PERM,
9360 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9361 NL80211_FLAG_NEED_RTNL,
5de17984 9362 }
55682965 9363};
9588bbd5 9364
6039f6d2
JM		 9365static struct genl_multicast_group nl80211_mlme_mcgrp = {
9366 .name = "mlme",
9367};
55682965
JB		 9368
9369/* multicast groups */
9370static struct genl_multicast_group nl80211_config_mcgrp = {
9371 .name = "config",
9372};
2a519311
JB		 9373static struct genl_multicast_group nl80211_scan_mcgrp = {
9374 .name = "scan",
9375};
73d54c9e
LR		 9376static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9377 .name = "regulatory",
9378};
55682965
JB		 9379
9380/* notification functions */
9381
9382void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9383{
9384 struct sk_buff *msg;
86e8cf98 9385 struct nl80211_dump_wiphy_state state = {};
55682965 9386
fd2120ca 9387 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9388 if (!msg)
9389 return;
9390
86e8cf98 9391 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9392 nlmsg_free(msg);
9393 return;
9394 }
9395
463d0183
JB		 9396 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9397 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9398}
9399
362a415d
JB		 9400static int nl80211_add_scan_req(struct sk_buff *msg,
9401 struct cfg80211_registered_device *rdev)
9402{
9403 struct cfg80211_scan_request *req = rdev->scan_req;
9404 struct nlattr *nest;
9405 int i;
9406
9407 if (WARN_ON(!req))
9408 return 0;
9409
9410 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9411 if (!nest)
9412 goto nla_put_failure;
9360ffd1
DM		 9413 for (i = 0; i < req->n_ssids; i++) {
9414 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9415 goto nla_put_failure;
9416 }
362a415d
JB		 9417 nla_nest_end(msg, nest);
9418
9419 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9420 if (!nest)
9421 goto nla_put_failure;
9360ffd1
DM		 9422 for (i = 0; i < req->n_channels; i++) {
9423 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9424 goto nla_put_failure;
9425 }
362a415d
JB		 9426 nla_nest_end(msg, nest);
9427
9360ffd1
DM		 9428 if (req->ie &&
9429 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9430 goto nla_put_failure;
362a415d 9431
ed473771
SL		 9432 if (req->flags)
9433 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9434
362a415d
JB		 9435 return 0;
9436 nla_put_failure:
9437 return -ENOBUFS;
9438}
9439
a538e2d5
JB		 9440static int nl80211_send_scan_msg(struct sk_buff *msg,
9441 struct cfg80211_registered_device *rdev,
fd014284 9442 struct wireless_dev *wdev,
15e47304 9443 u32 portid, u32 seq, int flags,
a538e2d5 9444 u32 cmd)
2a519311
JB		 9445{
9446 void *hdr;
9447
15e47304 9448 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9449 if (!hdr)
9450 return -1;
9451
9360ffd1 9452 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9453 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9454 wdev->netdev->ifindex)) ||
9455 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9456 goto nla_put_failure;
2a519311 9457
362a415d
JB		 9458 /* ignore errors and send incomplete event anyway */
9459 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9460
9461 return genlmsg_end(msg, hdr);
9462
9463 nla_put_failure:
9464 genlmsg_cancel(msg, hdr);
9465 return -EMSGSIZE;
9466}
9467
807f8a8c
LC		 9468static int
9469nl80211_send_sched_scan_msg(struct sk_buff *msg,
9470 struct cfg80211_registered_device *rdev,
9471 struct net_device *netdev,
15e47304 9472 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9473{
9474 void *hdr;
9475
15e47304 9476 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9477 if (!hdr)
9478 return -1;
9479
9360ffd1
DM		 9480 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9481 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9482 goto nla_put_failure;
807f8a8c
LC		 9483
9484 return genlmsg_end(msg, hdr);
9485
9486 nla_put_failure:
9487 genlmsg_cancel(msg, hdr);
9488 return -EMSGSIZE;
9489}
9490
a538e2d5 9491void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9492 struct wireless_dev *wdev)
a538e2d5
JB		 9493{
9494 struct sk_buff *msg;
9495
58050fce 9496 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9497 if (!msg)
9498 return;
9499
fd014284 9500 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9501 NL80211_CMD_TRIGGER_SCAN) < 0) {
9502 nlmsg_free(msg);
9503 return;
9504 }
9505
463d0183
JB		 9506 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9507 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9508}
9509
2a519311 9510void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9511 struct wireless_dev *wdev)
2a519311
JB		 9512{
9513 struct sk_buff *msg;
9514
fd2120ca 9515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9516 if (!msg)
9517 return;
9518
fd014284 9519 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9520 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9521 nlmsg_free(msg);
9522 return;
9523 }
9524
463d0183
JB		 9525 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9526 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9527}
9528
9529void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9530 struct wireless_dev *wdev)
2a519311
JB		 9531{
9532 struct sk_buff *msg;
9533
fd2120ca 9534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9535 if (!msg)
9536 return;
9537
fd014284 9538 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9539 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9540 nlmsg_free(msg);
9541 return;
9542 }
9543
463d0183
JB		 9544 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9545 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9546}
9547
807f8a8c
LC		 9548void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9549 struct net_device *netdev)
9550{
9551 struct sk_buff *msg;
9552
9553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9554 if (!msg)
9555 return;
9556
9557 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9558 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9559 nlmsg_free(msg);
9560 return;
9561 }
9562
9563 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9564 nl80211_scan_mcgrp.id, GFP_KERNEL);
9565}
9566
9567void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9568 struct net_device *netdev, u32 cmd)
9569{
9570 struct sk_buff *msg;
9571
58050fce 9572 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9573 if (!msg)
9574 return;
9575
9576 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9577 nlmsg_free(msg);
9578 return;
9579 }
9580
9581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9582 nl80211_scan_mcgrp.id, GFP_KERNEL);
9583}
9584
73d54c9e
LR		 9585/*
9586 * This can happen on global regulatory changes or device specific settings
9587 * based on custom world regulatory domains.
9588 */
9589void nl80211_send_reg_change_event(struct regulatory_request *request)
9590{
9591 struct sk_buff *msg;
9592 void *hdr;
9593
fd2120ca 9594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9595 if (!msg)
9596 return;
9597
9598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9599 if (!hdr) {
9600 nlmsg_free(msg);
9601 return;
9602 }
9603
9604 /* Userspace can always count this one always being set */
9360ffd1
DM		 9605 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9606 goto nla_put_failure;
9607
9608 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9609 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9610 NL80211_REGDOM_TYPE_WORLD))
9611 goto nla_put_failure;
9612 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9613 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9614 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9615 goto nla_put_failure;
9616 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9617 request->intersect) {
9618 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9619 NL80211_REGDOM_TYPE_INTERSECTION))
9620 goto nla_put_failure;
9621 } else {
9622 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9623 NL80211_REGDOM_TYPE_COUNTRY) ||
9624 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9625 request->alpha2))
9626 goto nla_put_failure;
9627 }
9628
f4173766 9629 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9630 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9631 goto nla_put_failure;
73d54c9e 9632
3b7b72ee 9633 genlmsg_end(msg, hdr);
73d54c9e 9634
bc43b28c 9635 rcu_read_lock();
463d0183 9636 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9637 GFP_ATOMIC);
9638 rcu_read_unlock();
73d54c9e
LR		 9639
9640 return;
9641
9642nla_put_failure:
9643 genlmsg_cancel(msg, hdr);
9644 nlmsg_free(msg);
9645}
9646
6039f6d2
JM		 9647static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9648 struct net_device *netdev,
9649 const u8 *buf, size_t len,
e6d6e342 9650 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9651{
9652 struct sk_buff *msg;
9653 void *hdr;
9654
e6d6e342 9655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9656 if (!msg)
9657 return;
9658
9659 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9660 if (!hdr) {
9661 nlmsg_free(msg);
9662 return;
9663 }
9664
9360ffd1
DM		 9665 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9666 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9667 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9668 goto nla_put_failure;
6039f6d2 9669
3b7b72ee 9670 genlmsg_end(msg, hdr);
6039f6d2 9671
463d0183
JB		 9672 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9673 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9674 return;
9675
9676 nla_put_failure:
9677 genlmsg_cancel(msg, hdr);
9678 nlmsg_free(msg);
9679}
9680
9681void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9682 struct net_device *netdev, const u8 *buf,
9683 size_t len, gfp_t gfp)
6039f6d2
JM		 9684{
9685 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9686 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9687}
9688
9689void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9690 struct net_device *netdev, const u8 *buf,
e6d6e342 9691 size_t len, gfp_t gfp)
6039f6d2 9692{
e6d6e342
JB		 9693 nl80211_send_mlme_event(rdev, netdev, buf, len,
9694 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9695}
9696
53b46b84 9697void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9698 struct net_device *netdev, const u8 *buf,
9699 size_t len, gfp_t gfp)
6039f6d2
JM		 9700{
9701 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9702 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9703}
9704
53b46b84
JM		 9705void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9706 struct net_device *netdev, const u8 *buf,
e6d6e342 9707 size_t len, gfp_t gfp)
6039f6d2
JM		 9708{
9709 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9710 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9711}
9712
6ff57cf8
JB		 9713void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9714 size_t len)
cf4e594e 9715{
947add36
JB		 9716 struct wireless_dev *wdev = dev->ieee80211_ptr;
9717 struct wiphy *wiphy = wdev->wiphy;
9718 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 9719 const struct ieee80211_mgmt *mgmt = (void *)buf;
9720 u32 cmd;
947add36 9721
6ff57cf8
JB		 9722 if (WARN_ON(len < 2))
9723 return;
cf4e594e 9724
6ff57cf8
JB		 9725 if (ieee80211_is_deauth(mgmt->frame_control))
9726 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9727 else
9728 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 9729
6ff57cf8
JB		 9730 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9731 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 9732}
6ff57cf8 9733EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 9734
1b06bb40
LR		 9735static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9736 struct net_device *netdev, int cmd,
e6d6e342 9737 const u8 *addr, gfp_t gfp)
1965c853
JM		 9738{
9739 struct sk_buff *msg;
9740 void *hdr;
9741
e6d6e342 9742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9743 if (!msg)
9744 return;
9745
9746 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9747 if (!hdr) {
9748 nlmsg_free(msg);
9749 return;
9750 }
9751
9360ffd1
DM		 9752 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9753 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9754 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9755 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9756 goto nla_put_failure;
1965c853 9757
3b7b72ee 9758 genlmsg_end(msg, hdr);
1965c853 9759
463d0183
JB		 9760 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9761 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9762 return;
9763
9764 nla_put_failure:
9765 genlmsg_cancel(msg, hdr);
9766 nlmsg_free(msg);
9767}
9768
9769void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9770 struct net_device *netdev, const u8 *addr,
9771 gfp_t gfp)
1965c853
JM		 9772{
9773 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9774 addr, gfp);
1965c853
JM		 9775}
9776
9777void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9778 struct net_device *netdev, const u8 *addr,
9779 gfp_t gfp)
1965c853 9780{
e6d6e342
JB		 9781 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9782 addr, gfp);
1965c853
JM		 9783}
9784
b23aa676
SO		 9785void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9786 struct net_device *netdev, const u8 *bssid,
9787 const u8 *req_ie, size_t req_ie_len,
9788 const u8 *resp_ie, size_t resp_ie_len,
9789 u16 status, gfp_t gfp)
9790{
9791 struct sk_buff *msg;
9792 void *hdr;
9793
58050fce 9794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9795 if (!msg)
9796 return;
9797
9798 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9799 if (!hdr) {
9800 nlmsg_free(msg);
9801 return;
9802 }
9803
9360ffd1
DM		 9804 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9805 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9806 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9807 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9808 (req_ie &&
9809 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9810 (resp_ie &&
9811 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9812 goto nla_put_failure;
b23aa676 9813
3b7b72ee 9814 genlmsg_end(msg, hdr);
b23aa676 9815
463d0183
JB		 9816 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9817 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9818 return;
9819
9820 nla_put_failure:
9821 genlmsg_cancel(msg, hdr);
9822 nlmsg_free(msg);
9823
9824}
9825
9826void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9827 struct net_device *netdev, const u8 *bssid,
9828 const u8 *req_ie, size_t req_ie_len,
9829 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9830{
9831 struct sk_buff *msg;
9832 void *hdr;
9833
58050fce 9834 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9835 if (!msg)
9836 return;
9837
9838 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9839 if (!hdr) {
9840 nlmsg_free(msg);
9841 return;
9842 }
9843
9360ffd1
DM		 9844 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9845 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9846 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9847 (req_ie &&
9848 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9849 (resp_ie &&
9850 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9851 goto nla_put_failure;
b23aa676 9852
3b7b72ee 9853 genlmsg_end(msg, hdr);
b23aa676 9854
463d0183
JB		 9855 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9856 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9857 return;
9858
9859 nla_put_failure:
9860 genlmsg_cancel(msg, hdr);
9861 nlmsg_free(msg);
9862
9863}
9864
9865void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9866 struct net_device *netdev, u16 reason,
667503dd 9867 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9868{
9869 struct sk_buff *msg;
9870 void *hdr;
9871
58050fce 9872 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9873 if (!msg)
9874 return;
9875
9876 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9877 if (!hdr) {
9878 nlmsg_free(msg);
9879 return;
9880 }
9881
9360ffd1
DM		 9882 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9883 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9884 (from_ap && reason &&
9885 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9886 (from_ap &&
9887 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9888 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9889 goto nla_put_failure;
b23aa676 9890
3b7b72ee 9891 genlmsg_end(msg, hdr);
b23aa676 9892
463d0183
JB		 9893 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9894 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9895 return;
9896
9897 nla_put_failure:
9898 genlmsg_cancel(msg, hdr);
9899 nlmsg_free(msg);
9900
9901}
9902
04a773ad
JB		 9903void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9904 struct net_device *netdev, const u8 *bssid,
9905 gfp_t gfp)
9906{
9907 struct sk_buff *msg;
9908 void *hdr;
9909
fd2120ca 9910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9911 if (!msg)
9912 return;
9913
9914 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9915 if (!hdr) {
9916 nlmsg_free(msg);
9917 return;
9918 }
9919
9360ffd1
DM		 9920 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9921 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9922 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9923 goto nla_put_failure;
04a773ad 9924
3b7b72ee 9925 genlmsg_end(msg, hdr);
04a773ad 9926
463d0183
JB		 9927 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9928 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9929 return;
9930
9931 nla_put_failure:
9932 genlmsg_cancel(msg, hdr);
9933 nlmsg_free(msg);
9934}
9935
947add36
JB		 9936void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9937 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9938{
947add36
JB		 9939 struct wireless_dev *wdev = dev->ieee80211_ptr;
9940 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9941 struct sk_buff *msg;
9942 void *hdr;
9943
947add36
JB		 9944 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9945 return;
9946
9947 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9948
c93b5e71
JC		 9949 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9950 if (!msg)
9951 return;
9952
9953 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9954 if (!hdr) {
9955 nlmsg_free(msg);
9956 return;
9957 }
9958
9360ffd1 9959 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9960 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9961 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9962 (ie_len && ie &&
9963 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9964 goto nla_put_failure;
c93b5e71 9965
3b7b72ee 9966 genlmsg_end(msg, hdr);
c93b5e71
JC		 9967
9968 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9969 nl80211_mlme_mcgrp.id, gfp);
9970 return;
9971
9972 nla_put_failure:
9973 genlmsg_cancel(msg, hdr);
9974 nlmsg_free(msg);
9975}
947add36 9976EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9977
a3b8b056
JM		 9978void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9979 struct net_device *netdev, const u8 *addr,
9980 enum nl80211_key_type key_type, int key_id,
e6d6e342 9981 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9982{
9983 struct sk_buff *msg;
9984 void *hdr;
9985
e6d6e342 9986 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9987 if (!msg)
9988 return;
9989
9990 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9991 if (!hdr) {
9992 nlmsg_free(msg);
9993 return;
9994 }
9995
9360ffd1
DM		 9996 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9997 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9998 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9999 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10000 (key_id != -1 &&
10001 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10002 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10003 goto nla_put_failure;
a3b8b056 10004
3b7b72ee 10005 genlmsg_end(msg, hdr);
a3b8b056 10006
463d0183
JB		 10007 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10008 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 10009 return;
10010
10011 nla_put_failure:
10012 genlmsg_cancel(msg, hdr);
10013 nlmsg_free(msg);
10014}
10015
6bad8766
LR		 10016void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10017 struct ieee80211_channel *channel_before,
10018 struct ieee80211_channel *channel_after)
10019{
10020 struct sk_buff *msg;
10021 void *hdr;
10022 struct nlattr *nl_freq;
10023
fd2120ca 10024 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10025 if (!msg)
10026 return;
10027
10028 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10029 if (!hdr) {
10030 nlmsg_free(msg);
10031 return;
10032 }
10033
10034 /*
10035 * Since we are applying the beacon hint to a wiphy we know its
10036 * wiphy_idx is valid
10037 */
9360ffd1
DM		 10038 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10039 goto nla_put_failure;
6bad8766
LR		 10040
10041 /* Before */
10042 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10043 if (!nl_freq)
10044 goto nla_put_failure;
cdc89b97 10045 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10046 goto nla_put_failure;
10047 nla_nest_end(msg, nl_freq);
10048
10049 /* After */
10050 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10051 if (!nl_freq)
10052 goto nla_put_failure;
cdc89b97 10053 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10054 goto nla_put_failure;
10055 nla_nest_end(msg, nl_freq);
10056
3b7b72ee 10057 genlmsg_end(msg, hdr);
6bad8766 10058
463d0183
JB		 10059 rcu_read_lock();
10060 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
10061 GFP_ATOMIC);
10062 rcu_read_unlock();
6bad8766
LR		 10063
10064 return;
10065
10066nla_put_failure:
10067 genlmsg_cancel(msg, hdr);
10068 nlmsg_free(msg);
10069}
10070
9588bbd5
JM		 10071static void nl80211_send_remain_on_chan_event(
10072 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10073 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10074 struct ieee80211_channel *chan,
9588bbd5
JM		 10075 unsigned int duration, gfp_t gfp)
10076{
10077 struct sk_buff *msg;
10078 void *hdr;
10079
10080 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10081 if (!msg)
10082 return;
10083
10084 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10085 if (!hdr) {
10086 nlmsg_free(msg);
10087 return;
10088 }
10089
9360ffd1 10090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10091 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10092 wdev->netdev->ifindex)) ||
00f53350 10093 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10094 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10095 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10096 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10097 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10098 goto nla_put_failure;
9588bbd5 10099
9360ffd1
DM		 10100 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10101 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10102 goto nla_put_failure;
9588bbd5 10103
3b7b72ee 10104 genlmsg_end(msg, hdr);
9588bbd5
JM		 10105
10106 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10107 nl80211_mlme_mcgrp.id, gfp);
10108 return;
10109
10110 nla_put_failure:
10111 genlmsg_cancel(msg, hdr);
10112 nlmsg_free(msg);
10113}
10114
947add36
JB		 10115void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10116 struct ieee80211_channel *chan,
10117 unsigned int duration, gfp_t gfp)
9588bbd5 10118{
947add36
JB		 10119 struct wiphy *wiphy = wdev->wiphy;
10120 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10121
10122 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10123 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10124 rdev, wdev, cookie, chan,
42d97a59 10125 duration, gfp);
9588bbd5 10126}
947add36 10127EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10128
947add36
JB		 10129void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10130 struct ieee80211_channel *chan,
10131 gfp_t gfp)
9588bbd5 10132{
947add36
JB		 10133 struct wiphy *wiphy = wdev->wiphy;
10134 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10135
10136 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10137 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10138 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10139}
947add36 10140EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10141
947add36
JB		 10142void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10143 struct station_info *sinfo, gfp_t gfp)
98b62183 10144{
947add36
JB		 10145 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10146 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10147 struct sk_buff *msg;
10148
947add36
JB		 10149 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10150
58050fce 10151 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10152 if (!msg)
10153 return;
10154
66266b3a
JL		 10155 if (nl80211_send_station(msg, 0, 0, 0,
10156 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10157 nlmsg_free(msg);
10158 return;
10159 }
10160
10161 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10162 nl80211_mlme_mcgrp.id, gfp);
10163}
947add36 10164EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10165
947add36 10166void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10167{
947add36
JB		 10168 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10169 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10170 struct sk_buff *msg;
10171 void *hdr;
10172
947add36
JB		 10173 trace_cfg80211_del_sta(dev, mac_addr);
10174
58050fce 10175 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10176 if (!msg)
10177 return;
10178
10179 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10180 if (!hdr) {
10181 nlmsg_free(msg);
10182 return;
10183 }
10184
9360ffd1
DM		 10185 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10186 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10187 goto nla_put_failure;
ec15e68b 10188
3b7b72ee 10189 genlmsg_end(msg, hdr);
ec15e68b
JM		 10190
10191 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10192 nl80211_mlme_mcgrp.id, gfp);
10193 return;
10194
10195 nla_put_failure:
10196 genlmsg_cancel(msg, hdr);
10197 nlmsg_free(msg);
10198}
947add36 10199EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10200
947add36
JB		 10201void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10202 enum nl80211_connect_failed_reason reason,
10203 gfp_t gfp)
ed44a951 10204{
947add36
JB		 10205 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10206 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10207 struct sk_buff *msg;
10208 void *hdr;
10209
10210 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10211 if (!msg)
10212 return;
10213
10214 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10215 if (!hdr) {
10216 nlmsg_free(msg);
10217 return;
10218 }
10219
10220 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10221 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10222 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10223 goto nla_put_failure;
10224
10225 genlmsg_end(msg, hdr);
10226
10227 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10228 nl80211_mlme_mcgrp.id, gfp);
10229 return;
10230
10231 nla_put_failure:
10232 genlmsg_cancel(msg, hdr);
10233 nlmsg_free(msg);
10234}
947add36 10235EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10236
b92ab5d8
JB		 10237static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10238 const u8 *addr, gfp_t gfp)
28946da7
JB		 10239{
10240 struct wireless_dev *wdev = dev->ieee80211_ptr;
10241 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10242 struct sk_buff *msg;
10243 void *hdr;
15e47304 10244 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10245
15e47304 10246 if (!nlportid)
28946da7
JB		 10247 return false;
10248
10249 msg = nlmsg_new(100, gfp);
10250 if (!msg)
10251 return true;
10252
b92ab5d8 10253 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10254 if (!hdr) {
10255 nlmsg_free(msg);
10256 return true;
10257 }
10258
9360ffd1
DM		 10259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10260 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10261 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10262 goto nla_put_failure;
28946da7 10263
9c90a9f6 10264 genlmsg_end(msg, hdr);
15e47304 10265 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10266 return true;
10267
10268 nla_put_failure:
10269 genlmsg_cancel(msg, hdr);
10270 nlmsg_free(msg);
10271 return true;
10272}
10273
947add36
JB		 10274bool cfg80211_rx_spurious_frame(struct net_device *dev,
10275 const u8 *addr, gfp_t gfp)
b92ab5d8 10276{
947add36
JB		 10277 struct wireless_dev *wdev = dev->ieee80211_ptr;
10278 bool ret;
10279
10280 trace_cfg80211_rx_spurious_frame(dev, addr);
10281
10282 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10283 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10284 trace_cfg80211_return_bool(false);
10285 return false;
10286 }
10287 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10288 addr, gfp);
10289 trace_cfg80211_return_bool(ret);
10290 return ret;
b92ab5d8 10291}
947add36 10292EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10293
947add36
JB		 10294bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10295 const u8 *addr, gfp_t gfp)
b92ab5d8 10296{
947add36
JB		 10297 struct wireless_dev *wdev = dev->ieee80211_ptr;
10298 bool ret;
10299
10300 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10301
10302 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10303 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10304 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10305 trace_cfg80211_return_bool(false);
10306 return false;
10307 }
10308 ret = __nl80211_unexpected_frame(dev,
10309 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10310 addr, gfp);
10311 trace_cfg80211_return_bool(ret);
10312 return ret;
b92ab5d8 10313}
947add36 10314EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10315
2e161f78 10316int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10317 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 10318 int freq, int sig_dbm,
10319 const u8 *buf, size_t len, gfp_t gfp)
026331c4 10320{
71bbc994 10321 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10322 struct sk_buff *msg;
10323 void *hdr;
026331c4
JM		 10324
10325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10326 if (!msg)
10327 return -ENOMEM;
10328
2e161f78 10329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10330 if (!hdr) {
10331 nlmsg_free(msg);
10332 return -ENOMEM;
10333 }
10334
9360ffd1 10335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10336 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10337 netdev->ifindex)) ||
a838490b 10338 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10339 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10340 (sig_dbm &&
10341 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10342 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10343 goto nla_put_failure;
026331c4 10344
3b7b72ee 10345 genlmsg_end(msg, hdr);
026331c4 10346
15e47304 10347 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10348
10349 nla_put_failure:
10350 genlmsg_cancel(msg, hdr);
10351 nlmsg_free(msg);
10352 return -ENOBUFS;
10353}
10354
947add36
JB		 10355void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10356 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10357{
947add36
JB		 10358 struct wiphy *wiphy = wdev->wiphy;
10359 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10360 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10361 struct sk_buff *msg;
10362 void *hdr;
10363
947add36
JB		 10364 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10365
026331c4
JM		 10366 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10367 if (!msg)
10368 return;
10369
2e161f78 10370 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10371 if (!hdr) {
10372 nlmsg_free(msg);
10373 return;
10374 }
10375
9360ffd1 10376 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10377 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10378 netdev->ifindex)) ||
a838490b 10379 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10380 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10381 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10382 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10383 goto nla_put_failure;
026331c4 10384
3b7b72ee 10385 genlmsg_end(msg, hdr);
026331c4
JM		 10386
10387 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10388 return;
10389
10390 nla_put_failure:
10391 genlmsg_cancel(msg, hdr);
10392 nlmsg_free(msg);
10393}
947add36 10394EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10395
947add36
JB		 10396void cfg80211_cqm_rssi_notify(struct net_device *dev,
10397 enum nl80211_cqm_rssi_threshold_event rssi_event,
10398 gfp_t gfp)
d6dc1a38 10399{
947add36
JB		 10400 struct wireless_dev *wdev = dev->ieee80211_ptr;
10401 struct wiphy *wiphy = wdev->wiphy;
10402 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10403 struct sk_buff *msg;
10404 struct nlattr *pinfoattr;
10405 void *hdr;
10406
947add36
JB		 10407 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10408
58050fce 10409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10410 if (!msg)
10411 return;
10412
10413 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10414 if (!hdr) {
10415 nlmsg_free(msg);
10416 return;
10417 }
10418
9360ffd1 10419 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10420 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10421 goto nla_put_failure;
d6dc1a38
JO		 10422
10423 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10424 if (!pinfoattr)
10425 goto nla_put_failure;
10426
9360ffd1
DM		 10427 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10428 rssi_event))
10429 goto nla_put_failure;
d6dc1a38
JO		 10430
10431 nla_nest_end(msg, pinfoattr);
10432
3b7b72ee 10433 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10434
10435 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10436 nl80211_mlme_mcgrp.id, gfp);
10437 return;
10438
10439 nla_put_failure:
10440 genlmsg_cancel(msg, hdr);
10441 nlmsg_free(msg);
10442}
947add36 10443EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10444
947add36
JB		 10445static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10446 struct net_device *netdev, const u8 *bssid,
10447 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10448{
10449 struct sk_buff *msg;
10450 struct nlattr *rekey_attr;
10451 void *hdr;
10452
58050fce 10453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10454 if (!msg)
10455 return;
10456
10457 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10458 if (!hdr) {
10459 nlmsg_free(msg);
10460 return;
10461 }
10462
9360ffd1
DM		 10463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10464 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10465 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10466 goto nla_put_failure;
e5497d76
JB		 10467
10468 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10469 if (!rekey_attr)
10470 goto nla_put_failure;
10471
9360ffd1
DM		 10472 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10473 NL80211_REPLAY_CTR_LEN, replay_ctr))
10474 goto nla_put_failure;
e5497d76
JB		 10475
10476 nla_nest_end(msg, rekey_attr);
10477
3b7b72ee 10478 genlmsg_end(msg, hdr);
e5497d76
JB		 10479
10480 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10481 nl80211_mlme_mcgrp.id, gfp);
10482 return;
10483
10484 nla_put_failure:
10485 genlmsg_cancel(msg, hdr);
10486 nlmsg_free(msg);
10487}
10488
947add36
JB		 10489void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10490 const u8 *replay_ctr, gfp_t gfp)
10491{
10492 struct wireless_dev *wdev = dev->ieee80211_ptr;
10493 struct wiphy *wiphy = wdev->wiphy;
10494 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10495
10496 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10497 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10498}
10499EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10500
10501static void
10502nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10503 struct net_device *netdev, int index,
10504 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10505{
10506 struct sk_buff *msg;
10507 struct nlattr *attr;
10508 void *hdr;
10509
58050fce 10510 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10511 if (!msg)
10512 return;
10513
10514 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10515 if (!hdr) {
10516 nlmsg_free(msg);
10517 return;
10518 }
10519
9360ffd1
DM		 10520 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10521 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10522 goto nla_put_failure;
c9df56b4
JM		 10523
10524 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10525 if (!attr)
10526 goto nla_put_failure;
10527
9360ffd1
DM		 10528 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10529 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10530 (preauth &&
10531 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10532 goto nla_put_failure;
c9df56b4
JM		 10533
10534 nla_nest_end(msg, attr);
10535
3b7b72ee 10536 genlmsg_end(msg, hdr);
c9df56b4
JM		 10537
10538 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10539 nl80211_mlme_mcgrp.id, gfp);
10540 return;
10541
10542 nla_put_failure:
10543 genlmsg_cancel(msg, hdr);
10544 nlmsg_free(msg);
10545}
10546
947add36
JB		 10547void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10548 const u8 *bssid, bool preauth, gfp_t gfp)
10549{
10550 struct wireless_dev *wdev = dev->ieee80211_ptr;
10551 struct wiphy *wiphy = wdev->wiphy;
10552 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10553
10554 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10555 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10556}
10557EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10558
10559static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10560 struct net_device *netdev,
10561 struct cfg80211_chan_def *chandef,
10562 gfp_t gfp)
5314526b
TP		 10563{
10564 struct sk_buff *msg;
10565 void *hdr;
10566
58050fce 10567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10568 if (!msg)
10569 return;
10570
10571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10572 if (!hdr) {
10573 nlmsg_free(msg);
10574 return;
10575 }
10576
683b6d3b
JB		 10577 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10578 goto nla_put_failure;
10579
10580 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10581 goto nla_put_failure;
5314526b
TP		 10582
10583 genlmsg_end(msg, hdr);
10584
10585 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10586 nl80211_mlme_mcgrp.id, gfp);
10587 return;
10588
10589 nla_put_failure:
10590 genlmsg_cancel(msg, hdr);
10591 nlmsg_free(msg);
10592}
10593
947add36
JB		 10594void cfg80211_ch_switch_notify(struct net_device *dev,
10595 struct cfg80211_chan_def *chandef)
84f10708 10596{
947add36
JB		 10597 struct wireless_dev *wdev = dev->ieee80211_ptr;
10598 struct wiphy *wiphy = wdev->wiphy;
10599 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10600
10601 trace_cfg80211_ch_switch_notify(dev, chandef);
10602
10603 wdev_lock(wdev);
10604
10605 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10606 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10607 goto out;
10608
10609 wdev->channel = chandef->chan;
10610 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10611out:
10612 wdev_unlock(wdev);
10613 return;
10614}
10615EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10616
10617void cfg80211_cqm_txe_notify(struct net_device *dev,
10618 const u8 *peer, u32 num_packets,
10619 u32 rate, u32 intvl, gfp_t gfp)
10620{
10621 struct wireless_dev *wdev = dev->ieee80211_ptr;
10622 struct wiphy *wiphy = wdev->wiphy;
10623 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10624 struct sk_buff *msg;
10625 struct nlattr *pinfoattr;
10626 void *hdr;
10627
10628 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10629 if (!msg)
10630 return;
10631
10632 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10633 if (!hdr) {
10634 nlmsg_free(msg);
10635 return;
10636 }
10637
10638 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10639 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10640 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10641 goto nla_put_failure;
10642
10643 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10644 if (!pinfoattr)
10645 goto nla_put_failure;
10646
10647 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10648 goto nla_put_failure;
10649
10650 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10651 goto nla_put_failure;
10652
10653 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10654 goto nla_put_failure;
10655
10656 nla_nest_end(msg, pinfoattr);
10657
10658 genlmsg_end(msg, hdr);
10659
10660 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10661 nl80211_mlme_mcgrp.id, gfp);
10662 return;
10663
10664 nla_put_failure:
10665 genlmsg_cancel(msg, hdr);
10666 nlmsg_free(msg);
10667}
947add36 10668EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10669
04f39047
SW		 10670void
10671nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10672 struct cfg80211_chan_def *chandef,
10673 enum nl80211_radar_event event,
10674 struct net_device *netdev, gfp_t gfp)
10675{
10676 struct sk_buff *msg;
10677 void *hdr;
10678
10679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10680 if (!msg)
10681 return;
10682
10683 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10684 if (!hdr) {
10685 nlmsg_free(msg);
10686 return;
10687 }
10688
10689 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10690 goto nla_put_failure;
10691
10692 /* NOP and radar events don't need a netdev parameter */
10693 if (netdev) {
10694 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10695
10696 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10697 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10698 goto nla_put_failure;
10699 }
10700
10701 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10702 goto nla_put_failure;
10703
10704 if (nl80211_send_chandef(msg, chandef))
10705 goto nla_put_failure;
10706
9c90a9f6 10707 genlmsg_end(msg, hdr);
04f39047
SW		 10708
10709 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10710 nl80211_mlme_mcgrp.id, gfp);
10711 return;
10712
10713 nla_put_failure:
10714 genlmsg_cancel(msg, hdr);
10715 nlmsg_free(msg);
10716}
10717
947add36
JB		 10718void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10719 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10720{
947add36
JB		 10721 struct wireless_dev *wdev = dev->ieee80211_ptr;
10722 struct wiphy *wiphy = wdev->wiphy;
10723 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10724 struct sk_buff *msg;
10725 struct nlattr *pinfoattr;
10726 void *hdr;
10727
947add36
JB		 10728 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10729
58050fce 10730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10731 if (!msg)
10732 return;
10733
10734 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10735 if (!hdr) {
10736 nlmsg_free(msg);
10737 return;
10738 }
10739
9360ffd1 10740 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10741 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10742 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10743 goto nla_put_failure;
c063dbf5
JB		 10744
10745 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10746 if (!pinfoattr)
10747 goto nla_put_failure;
10748
9360ffd1
DM		 10749 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10750 goto nla_put_failure;
c063dbf5
JB		 10751
10752 nla_nest_end(msg, pinfoattr);
10753
3b7b72ee 10754 genlmsg_end(msg, hdr);
c063dbf5
JB		 10755
10756 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10757 nl80211_mlme_mcgrp.id, gfp);
10758 return;
10759
10760 nla_put_failure:
10761 genlmsg_cancel(msg, hdr);
10762 nlmsg_free(msg);
10763}
947add36 10764EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10765
7f6cf311
JB		 10766void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10767 u64 cookie, bool acked, gfp_t gfp)
10768{
10769 struct wireless_dev *wdev = dev->ieee80211_ptr;
10770 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10771 struct sk_buff *msg;
10772 void *hdr;
7f6cf311 10773
4ee3e063
BL		 10774 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10775
58050fce 10776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10777
7f6cf311
JB		 10778 if (!msg)
10779 return;
10780
10781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10782 if (!hdr) {
10783 nlmsg_free(msg);
10784 return;
10785 }
10786
9360ffd1
DM		 10787 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10788 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10789 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10790 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10791 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10792 goto nla_put_failure;
7f6cf311 10793
9c90a9f6 10794 genlmsg_end(msg, hdr);
7f6cf311
JB		 10795
10796 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10797 nl80211_mlme_mcgrp.id, gfp);
10798 return;
10799
10800 nla_put_failure:
10801 genlmsg_cancel(msg, hdr);
10802 nlmsg_free(msg);
10803}
10804EXPORT_SYMBOL(cfg80211_probe_status);
10805
5e760230
JB		 10806void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10807 const u8 *frame, size_t len,
37c73b5f 10808 int freq, int sig_dbm)
5e760230
JB		 10809{
10810 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10811 struct sk_buff *msg;
10812 void *hdr;
37c73b5f 10813 struct cfg80211_beacon_registration *reg;
5e760230 10814
4ee3e063
BL		 10815 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10816
37c73b5f
BG		 10817 spin_lock_bh(&rdev->beacon_registrations_lock);
10818 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10819 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10820 if (!msg) {
10821 spin_unlock_bh(&rdev->beacon_registrations_lock);
10822 return;
10823 }
5e760230 10824
37c73b5f
BG		 10825 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10826 if (!hdr)
10827 goto nla_put_failure;
5e760230 10828
37c73b5f
BG		 10829 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10830 (freq &&
10831 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10832 (sig_dbm &&
10833 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10834 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10835 goto nla_put_failure;
5e760230 10836
37c73b5f 10837 genlmsg_end(msg, hdr);
5e760230 10838
37c73b5f
BG		 10839 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10840 }
10841 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10842 return;
10843
10844 nla_put_failure:
37c73b5f
BG		 10845 spin_unlock_bh(&rdev->beacon_registrations_lock);
10846 if (hdr)
10847 genlmsg_cancel(msg, hdr);
5e760230
JB		 10848 nlmsg_free(msg);
10849}
10850EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10851
cd8f7cb4
JB		 10852#ifdef CONFIG_PM
10853void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10854 struct cfg80211_wowlan_wakeup *wakeup,
10855 gfp_t gfp)
10856{
10857 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10858 struct sk_buff *msg;
10859 void *hdr;
9c90a9f6 10860 int size = 200;
cd8f7cb4
JB		 10861
10862 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10863
10864 if (wakeup)
10865 size += wakeup->packet_present_len;
10866
10867 msg = nlmsg_new(size, gfp);
10868 if (!msg)
10869 return;
10870
10871 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10872 if (!hdr)
10873 goto free_msg;
10874
10875 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10876 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10877 goto free_msg;
10878
10879 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10880 wdev->netdev->ifindex))
10881 goto free_msg;
10882
10883 if (wakeup) {
10884 struct nlattr *reasons;
10885
10886 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10887
10888 if (wakeup->disconnect &&
10889 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10890 goto free_msg;
10891 if (wakeup->magic_pkt &&
10892 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10893 goto free_msg;
10894 if (wakeup->gtk_rekey_failure &&
10895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10896 goto free_msg;
10897 if (wakeup->eap_identity_req &&
10898 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10899 goto free_msg;
10900 if (wakeup->four_way_handshake &&
10901 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10902 goto free_msg;
10903 if (wakeup->rfkill_release &&
10904 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10905 goto free_msg;
10906
10907 if (wakeup->pattern_idx >= 0 &&
10908 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10909 wakeup->pattern_idx))
10910 goto free_msg;
10911
2a0e047e
JB		 10912 if (wakeup->tcp_match)
10913 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10914
10915 if (wakeup->tcp_connlost)
10916 nla_put_flag(msg,
10917 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10918
10919 if (wakeup->tcp_nomoretokens)
10920 nla_put_flag(msg,
10921 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10922
cd8f7cb4
JB		 10923 if (wakeup->packet) {
10924 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10925 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10926
10927 if (!wakeup->packet_80211) {
10928 pkt_attr =
10929 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10930 len_attr =
10931 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10932 }
10933
10934 if (wakeup->packet_len &&
10935 nla_put_u32(msg, len_attr, wakeup->packet_len))
10936 goto free_msg;
10937
10938 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10939 wakeup->packet))
10940 goto free_msg;
10941 }
10942
10943 nla_nest_end(msg, reasons);
10944 }
10945
9c90a9f6 10946 genlmsg_end(msg, hdr);
cd8f7cb4
JB		 10947
10948 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10949 nl80211_mlme_mcgrp.id, gfp);
10950 return;
10951
10952 free_msg:
10953 nlmsg_free(msg);
10954}
10955EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10956#endif
10957
3475b094
JM		 10958void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10959 enum nl80211_tdls_operation oper,
10960 u16 reason_code, gfp_t gfp)
10961{
10962 struct wireless_dev *wdev = dev->ieee80211_ptr;
10963 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10964 struct sk_buff *msg;
10965 void *hdr;
3475b094
JM		 10966
10967 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10968 reason_code);
10969
10970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10971 if (!msg)
10972 return;
10973
10974 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10975 if (!hdr) {
10976 nlmsg_free(msg);
10977 return;
10978 }
10979
10980 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10981 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10982 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10983 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10984 (reason_code > 0 &&
10985 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10986 goto nla_put_failure;
10987
9c90a9f6 10988 genlmsg_end(msg, hdr);
3475b094
JM		 10989
10990 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10991 nl80211_mlme_mcgrp.id, gfp);
10992 return;
10993
10994 nla_put_failure:
10995 genlmsg_cancel(msg, hdr);
10996 nlmsg_free(msg);
10997}
10998EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10999
026331c4
JM		 11000static int nl80211_netlink_notify(struct notifier_block * nb,
11001 unsigned long state,
11002 void *_notify)
11003{
11004 struct netlink_notify *notify = _notify;
11005 struct cfg80211_registered_device *rdev;
11006 struct wireless_dev *wdev;
37c73b5f 11007 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11008
11009 if (state != NETLINK_URELEASE)
11010 return NOTIFY_DONE;
11011
11012 rcu_read_lock();
11013
5e760230 11014 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11015 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11016 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11017
11018 spin_lock_bh(&rdev->beacon_registrations_lock);
11019 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11020 list) {
11021 if (reg->nlportid == notify->portid) {
11022 list_del(&reg->list);
11023 kfree(reg);
11024 break;
11025 }
11026 }
11027 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11028 }
026331c4
JM		 11029
11030 rcu_read_unlock();
11031
11032 return NOTIFY_DONE;
11033}
11034
11035static struct notifier_block nl80211_netlink_notifier = {
11036 .notifier_call = nl80211_netlink_notify,
11037};
11038
355199e0
JM		 11039void cfg80211_ft_event(struct net_device *netdev,
11040 struct cfg80211_ft_event_params *ft_event)
11041{
11042 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11043 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11044 struct sk_buff *msg;
11045 void *hdr;
355199e0
JM		 11046
11047 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11048
11049 if (!ft_event->target_ap)
11050 return;
11051
11052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11053 if (!msg)
11054 return;
11055
11056 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11057 if (!hdr) {
11058 nlmsg_free(msg);
11059 return;
11060 }
11061
11062 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
11063 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
11064 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
11065 if (ft_event->ies)
11066 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
11067 if (ft_event->ric_ies)
11068 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11069 ft_event->ric_ies);
11070
9c90a9f6 11071 genlmsg_end(msg, hdr);
355199e0
JM		 11072
11073 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11074 nl80211_mlme_mcgrp.id, GFP_KERNEL);
11075}
11076EXPORT_SYMBOL(cfg80211_ft_event);
11077
5de17984
AS		 11078void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11079{
11080 struct cfg80211_registered_device *rdev;
11081 struct sk_buff *msg;
11082 void *hdr;
11083 u32 nlportid;
11084
11085 rdev = wiphy_to_dev(wdev->wiphy);
11086 if (!rdev->crit_proto_nlportid)
11087 return;
11088
11089 nlportid = rdev->crit_proto_nlportid;
11090 rdev->crit_proto_nlportid = 0;
11091
11092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11093 if (!msg)
11094 return;
11095
11096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11097 if (!hdr)
11098 goto nla_put_failure;
11099
11100 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11101 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11102 goto nla_put_failure;
11103
11104 genlmsg_end(msg, hdr);
11105
11106 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11107 return;
11108
11109 nla_put_failure:
11110 if (hdr)
11111 genlmsg_cancel(msg, hdr);
11112 nlmsg_free(msg);
11113
11114}
11115EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11116
55682965
JB		 11117/* initialisation/exit functions */
11118
11119int nl80211_init(void)
11120{
0d63cbb5 11121 int err;
55682965 11122
0d63cbb5
MM		 11123 err = genl_register_family_with_ops(&nl80211_fam,
11124 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 11125 if (err)
11126 return err;
11127
55682965
JB		 11128 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
11129 if (err)
11130 goto err_out;
11131
2a519311
JB		 11132 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
11133 if (err)
11134 goto err_out;
11135
73d54c9e
LR		 11136 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
11137 if (err)
11138 goto err_out;
11139
6039f6d2
JM		 11140 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
11141 if (err)
11142 goto err_out;
11143
aff89a9b
JB		 11144#ifdef CONFIG_NL80211_TESTMODE
11145 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
11146 if (err)
11147 goto err_out;
11148#endif
11149
026331c4
JM		 11150 err = netlink_register_notifier(&nl80211_netlink_notifier);
11151 if (err)
11152 goto err_out;
11153
55682965
JB		 11154 return 0;
11155 err_out:
11156 genl_unregister_family(&nl80211_fam);
11157 return err;
11158}
11159
11160void nl80211_exit(void)
11161{
026331c4 11162 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11163 genl_unregister_family(&nl80211_fam);
11164}
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