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mac80211: add a tx control flag to indicate PS-Poll/uAPSD response
[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
e5497d76
JB		 406/* policy for GTK rekey offload attributes */
407static const struct nla_policy
408nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
409 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
410 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
411 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
412};
413
a1f1c21c
LC		 414static const struct nla_policy
415nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 416 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 417 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 418 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 419};
420
97990a06
JB		 421static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
422 struct netlink_callback *cb,
423 struct cfg80211_registered_device **rdev,
424 struct wireless_dev **wdev)
a043897a 425{
97990a06 426 int err;
a043897a 427
97990a06 428 rtnl_lock();
a043897a 429
97990a06
JB		 430 if (!cb->args[0]) {
431 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
432 nl80211_fam.attrbuf, nl80211_fam.maxattr,
433 nl80211_policy);
434 if (err)
435 goto out_unlock;
67748893 436
97990a06
JB		 437 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
438 nl80211_fam.attrbuf);
439 if (IS_ERR(*wdev)) {
440 err = PTR_ERR(*wdev);
441 goto out_unlock;
442 }
443 *rdev = wiphy_to_dev((*wdev)->wiphy);
444 cb->args[0] = (*rdev)->wiphy_idx;
445 cb->args[1] = (*wdev)->identifier;
446 } else {
447 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
448 struct wireless_dev *tmp;
67748893 449
97990a06
JB		 450 if (!wiphy) {
451 err = -ENODEV;
452 goto out_unlock;
453 }
454 *rdev = wiphy_to_dev(wiphy);
455 *wdev = NULL;
67748893 456
97990a06
JB		 457 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
458 if (tmp->identifier == cb->args[1]) {
459 *wdev = tmp;
460 break;
461 }
462 }
67748893 463
97990a06
JB		 464 if (!*wdev) {
465 err = -ENODEV;
466 goto out_unlock;
467 }
67748893
JB		 468 }
469
67748893 470 return 0;
97990a06 471 out_unlock:
67748893
JB		 472 rtnl_unlock();
473 return err;
474}
475
97990a06 476static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 477{
67748893
JB		 478 rtnl_unlock();
479}
480
f4a11bb0
JB		 481/* IE validation */
482static bool is_valid_ie_attr(const struct nlattr *attr)
483{
484 const u8 *pos;
485 int len;
486
487 if (!attr)
488 return true;
489
490 pos = nla_data(attr);
491 len = nla_len(attr);
492
493 while (len) {
494 u8 elemlen;
495
496 if (len < 2)
497 return false;
498 len -= 2;
499
500 elemlen = pos[1];
501 if (elemlen > len)
502 return false;
503
504 len -= elemlen;
505 pos += 2 + elemlen;
506 }
507
508 return true;
509}
510
55682965 511/* message building helper */
15e47304 512static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 513 int flags, u8 cmd)
514{
515 /* since there is no private header just add the generic one */
15e47304 516 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 517}
518
5dab3b8a 519static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 520 struct ieee80211_channel *chan,
521 bool large)
5dab3b8a 522{
9360ffd1
DM		 523 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
524 chan->center_freq))
525 goto nla_put_failure;
5dab3b8a 526
9360ffd1
DM		 527 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
532 goto nla_put_failure;
533 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
534 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
535 goto nla_put_failure;
cdc89b97
JB		 536 if (chan->flags & IEEE80211_CHAN_RADAR) {
537 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
538 goto nla_put_failure;
539 if (large) {
540 u32 time;
541
542 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
543
544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
545 chan->dfs_state))
546 goto nla_put_failure;
547 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
548 time))
549 goto nla_put_failure;
550 }
551 }
5dab3b8a 552
fe1abafd
JB		 553 if (large) {
554 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
556 goto nla_put_failure;
557 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
565 goto nla_put_failure;
566 }
567
9360ffd1
DM		 568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
569 DBM_TO_MBM(chan->max_power)))
570 goto nla_put_failure;
5dab3b8a
LR		 571
572 return 0;
573
574 nla_put_failure:
575 return -ENOBUFS;
576}
577
55682965
JB		 578/* netlink command implementations */
579
b9454e83
JB		 580struct key_parse {
581 struct key_params p;
582 int idx;
e31b8213 583 int type;
b9454e83 584 bool def, defmgmt;
dbd2fd65 585 bool def_uni, def_multi;
b9454e83
JB		 586};
587
588static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
589{
590 struct nlattr *tb[NL80211_KEY_MAX + 1];
591 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
592 nl80211_key_policy);
593 if (err)
594 return err;
595
596 k->def = !!tb[NL80211_KEY_DEFAULT];
597 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
598
dbd2fd65
JB		 599 if (k->def) {
600 k->def_uni = true;
601 k->def_multi = true;
602 }
603 if (k->defmgmt)
604 k->def_multi = true;
605
b9454e83
JB		 606 if (tb[NL80211_KEY_IDX])
607 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
608
609 if (tb[NL80211_KEY_DATA]) {
610 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
611 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
612 }
613
614 if (tb[NL80211_KEY_SEQ]) {
615 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
616 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
617 }
618
619 if (tb[NL80211_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
621
e31b8213
JB		 622 if (tb[NL80211_KEY_TYPE]) {
623 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
624 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
625 return -EINVAL;
626 }
627
dbd2fd65
JB		 628 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
629 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 630 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
631 tb[NL80211_KEY_DEFAULT_TYPES],
632 nl80211_key_default_policy);
dbd2fd65
JB		 633 if (err)
634 return err;
635
636 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
637 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
638 }
639
b9454e83
JB		 640 return 0;
641}
642
643static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
644{
645 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
646 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
647 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
648 }
649
650 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
651 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
652 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
653 }
654
655 if (info->attrs[NL80211_ATTR_KEY_IDX])
656 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
657
658 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
659 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
660
661 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
662 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
663
dbd2fd65
JB		 664 if (k->def) {
665 k->def_uni = true;
666 k->def_multi = true;
667 }
668 if (k->defmgmt)
669 k->def_multi = true;
670
e31b8213
JB		 671 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
672 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
673 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
674 return -EINVAL;
675 }
676
dbd2fd65
JB		 677 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
678 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
679 int err = nla_parse_nested(
680 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
681 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
682 nl80211_key_default_policy);
683 if (err)
684 return err;
685
686 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
687 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
688 }
689
b9454e83
JB		 690 return 0;
691}
692
693static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
694{
695 int err;
696
697 memset(k, 0, sizeof(*k));
698 k->idx = -1;
e31b8213 699 k->type = -1;
b9454e83
JB		 700
701 if (info->attrs[NL80211_ATTR_KEY])
702 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
703 else
704 err = nl80211_parse_key_old(info, k);
705
706 if (err)
707 return err;
708
709 if (k->def && k->defmgmt)
710 return -EINVAL;
711
dbd2fd65
JB		 712 if (k->defmgmt) {
713 if (k->def_uni || !k->def_multi)
714 return -EINVAL;
715 }
716
b9454e83
JB		 717 if (k->idx != -1) {
718 if (k->defmgmt) {
719 if (k->idx < 4 || k->idx > 5)
720 return -EINVAL;
721 } else if (k->def) {
722 if (k->idx < 0 || k->idx > 3)
723 return -EINVAL;
724 } else {
725 if (k->idx < 0 || k->idx > 5)
726 return -EINVAL;
727 }
728 }
729
730 return 0;
731}
732
fffd0934
JB		 733static struct cfg80211_cached_keys *
734nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 735 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 736{
737 struct key_parse parse;
738 struct nlattr *key;
739 struct cfg80211_cached_keys *result;
740 int rem, err, def = 0;
741
742 result = kzalloc(sizeof(*result), GFP_KERNEL);
743 if (!result)
744 return ERR_PTR(-ENOMEM);
745
746 result->def = -1;
747 result->defmgmt = -1;
748
749 nla_for_each_nested(key, keys, rem) {
750 memset(&parse, 0, sizeof(parse));
751 parse.idx = -1;
752
753 err = nl80211_parse_key_new(key, &parse);
754 if (err)
755 goto error;
756 err = -EINVAL;
757 if (!parse.p.key)
758 goto error;
759 if (parse.idx < 0 || parse.idx > 4)
760 goto error;
761 if (parse.def) {
762 if (def)
763 goto error;
764 def = 1;
765 result->def = parse.idx;
dbd2fd65
JB		 766 if (!parse.def_uni || !parse.def_multi)
767 goto error;
fffd0934
JB		 768 } else if (parse.defmgmt)
769 goto error;
770 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 771 parse.idx, false, NULL);
fffd0934
JB		 772 if (err)
773 goto error;
774 result->params[parse.idx].cipher = parse.p.cipher;
775 result->params[parse.idx].key_len = parse.p.key_len;
776 result->params[parse.idx].key = result->data[parse.idx];
777 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 778
779 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
780 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
781 if (no_ht)
782 *no_ht = true;
783 }
fffd0934
JB		 784 }
785
786 return result;
787 error:
788 kfree(result);
789 return ERR_PTR(err);
790}
791
792static int nl80211_key_allowed(struct wireless_dev *wdev)
793{
794 ASSERT_WDEV_LOCK(wdev);
795
fffd0934
JB		 796 switch (wdev->iftype) {
797 case NL80211_IFTYPE_AP:
798 case NL80211_IFTYPE_AP_VLAN:
074ac8df 799 case NL80211_IFTYPE_P2P_GO:
ff973af7 800 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 801 break;
802 case NL80211_IFTYPE_ADHOC:
803 if (!wdev->current_bss)
804 return -ENOLINK;
805 break;
806 case NL80211_IFTYPE_STATION:
074ac8df 807 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 808 if (wdev->sme_state != CFG80211_SME_CONNECTED)
809 return -ENOLINK;
810 break;
811 default:
812 return -EINVAL;
813 }
814
815 return 0;
816}
817
7527a782
JB		 818static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
819{
820 struct nlattr *nl_modes = nla_nest_start(msg, attr);
821 int i;
822
823 if (!nl_modes)
824 goto nla_put_failure;
825
826 i = 0;
827 while (ifmodes) {
9360ffd1
DM		 828 if ((ifmodes & 1) && nla_put_flag(msg, i))
829 goto nla_put_failure;
7527a782
JB		 830 ifmodes >>= 1;
831 i++;
832 }
833
834 nla_nest_end(msg, nl_modes);
835 return 0;
836
837nla_put_failure:
838 return -ENOBUFS;
839}
840
841static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 842 struct sk_buff *msg,
843 bool large)
7527a782
JB		 844{
845 struct nlattr *nl_combis;
846 int i, j;
847
848 nl_combis = nla_nest_start(msg,
849 NL80211_ATTR_INTERFACE_COMBINATIONS);
850 if (!nl_combis)
851 goto nla_put_failure;
852
853 for (i = 0; i < wiphy->n_iface_combinations; i++) {
854 const struct ieee80211_iface_combination *c;
855 struct nlattr *nl_combi, *nl_limits;
856
857 c = &wiphy->iface_combinations[i];
858
859 nl_combi = nla_nest_start(msg, i + 1);
860 if (!nl_combi)
861 goto nla_put_failure;
862
863 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
864 if (!nl_limits)
865 goto nla_put_failure;
866
867 for (j = 0; j < c->n_limits; j++) {
868 struct nlattr *nl_limit;
869
870 nl_limit = nla_nest_start(msg, j + 1);
871 if (!nl_limit)
872 goto nla_put_failure;
9360ffd1
DM		 873 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
874 c->limits[j].max))
875 goto nla_put_failure;
7527a782
JB		 876 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
877 c->limits[j].types))
878 goto nla_put_failure;
879 nla_nest_end(msg, nl_limit);
880 }
881
882 nla_nest_end(msg, nl_limits);
883
9360ffd1
DM		 884 if (c->beacon_int_infra_match &&
885 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
886 goto nla_put_failure;
887 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
888 c->num_different_channels) ||
889 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
890 c->max_interfaces))
891 goto nla_put_failure;
cdc89b97
JB		 892 if (large &&
893 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
894 c->radar_detect_widths))
895 goto nla_put_failure;
7527a782
JB		 896
897 nla_nest_end(msg, nl_combi);
898 }
899
900 nla_nest_end(msg, nl_combis);
901
902 return 0;
903nla_put_failure:
904 return -ENOBUFS;
905}
906
3713b4e3 907#ifdef CONFIG_PM
b56cf720
JB		 908static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
909 struct sk_buff *msg)
910{
964dc9e2 911 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 912 struct nlattr *nl_tcp;
913
914 if (!tcp)
915 return 0;
916
917 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
918 if (!nl_tcp)
919 return -ENOBUFS;
920
921 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
922 tcp->data_payload_max))
923 return -ENOBUFS;
924
925 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
926 tcp->data_payload_max))
927 return -ENOBUFS;
928
929 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
930 return -ENOBUFS;
931
932 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
933 sizeof(*tcp->tok), tcp->tok))
934 return -ENOBUFS;
935
936 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
937 tcp->data_interval_max))
938 return -ENOBUFS;
939
940 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
941 tcp->wake_payload_max))
942 return -ENOBUFS;
943
944 nla_nest_end(msg, nl_tcp);
945 return 0;
946}
947
3713b4e3 948static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 949 struct cfg80211_registered_device *dev,
950 bool large)
55682965 951{
3713b4e3 952 struct nlattr *nl_wowlan;
55682965 953
964dc9e2 954 if (!dev->wiphy.wowlan)
3713b4e3 955 return 0;
55682965 956
3713b4e3
JB		 957 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
958 if (!nl_wowlan)
959 return -ENOBUFS;
9360ffd1 960
964dc9e2 961 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 962 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 963 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 964 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 965 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 966 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 967 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 968 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 969 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 970 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 971 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 972 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 973 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 974 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 975 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 976 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
977 return -ENOBUFS;
9360ffd1 978
964dc9e2 979 if (dev->wiphy.wowlan->n_patterns) {
3713b4e3 980 struct nl80211_wowlan_pattern_support pat = {
964dc9e2
JB		 981 .max_patterns = dev->wiphy.wowlan->n_patterns,
982 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
983 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
984 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 985 };
9360ffd1 986
3713b4e3
JB		 987 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
988 sizeof(pat), &pat))
989 return -ENOBUFS;
990 }
9360ffd1 991
b56cf720
JB		 992 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
993 return -ENOBUFS;
994
3713b4e3 995 nla_nest_end(msg, nl_wowlan);
9360ffd1 996
3713b4e3
JB		 997 return 0;
998}
999#endif
9360ffd1 1000
3713b4e3
JB		 1001static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1002 struct ieee80211_supported_band *sband)
1003{
1004 struct nlattr *nl_rates, *nl_rate;
1005 struct ieee80211_rate *rate;
1006 int i;
87bbbe22 1007
3713b4e3
JB		 1008 /* add HT info */
1009 if (sband->ht_cap.ht_supported &&
1010 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1011 sizeof(sband->ht_cap.mcs),
1012 &sband->ht_cap.mcs) ||
1013 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1014 sband->ht_cap.cap) ||
1015 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1016 sband->ht_cap.ampdu_factor) ||
1017 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1018 sband->ht_cap.ampdu_density)))
1019 return -ENOBUFS;
afe0cbf8 1020
3713b4e3
JB		 1021 /* add VHT info */
1022 if (sband->vht_cap.vht_supported &&
1023 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1024 sizeof(sband->vht_cap.vht_mcs),
1025 &sband->vht_cap.vht_mcs) ||
1026 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1027 sband->vht_cap.cap)))
1028 return -ENOBUFS;
f59ac048 1029
3713b4e3
JB		 1030 /* add bitrates */
1031 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1032 if (!nl_rates)
1033 return -ENOBUFS;
ee688b00 1034
3713b4e3
JB		 1035 for (i = 0; i < sband->n_bitrates; i++) {
1036 nl_rate = nla_nest_start(msg, i);
1037 if (!nl_rate)
1038 return -ENOBUFS;
ee688b00 1039
3713b4e3
JB		 1040 rate = &sband->bitrates[i];
1041 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1042 rate->bitrate))
1043 return -ENOBUFS;
1044 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1045 nla_put_flag(msg,
1046 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1047 return -ENOBUFS;
ee688b00 1048
3713b4e3
JB		 1049 nla_nest_end(msg, nl_rate);
1050 }
d51626df 1051
3713b4e3 1052 nla_nest_end(msg, nl_rates);
bf0c111e 1053
3713b4e3
JB		 1054 return 0;
1055}
ee688b00 1056
3713b4e3
JB		 1057static int
1058nl80211_send_mgmt_stypes(struct sk_buff *msg,
1059 const struct ieee80211_txrx_stypes *mgmt_stypes)
1060{
1061 u16 stypes;
1062 struct nlattr *nl_ftypes, *nl_ifs;
1063 enum nl80211_iftype ift;
1064 int i;
ee688b00 1065
3713b4e3
JB		 1066 if (!mgmt_stypes)
1067 return 0;
5dab3b8a 1068
3713b4e3
JB		 1069 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1070 if (!nl_ifs)
1071 return -ENOBUFS;
e2f367f2 1072
3713b4e3
JB		 1073 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1074 nl_ftypes = nla_nest_start(msg, ift);
1075 if (!nl_ftypes)
1076 return -ENOBUFS;
1077 i = 0;
1078 stypes = mgmt_stypes[ift].tx;
1079 while (stypes) {
1080 if ((stypes & 1) &&
1081 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1082 (i << 4) | IEEE80211_FTYPE_MGMT))
1083 return -ENOBUFS;
1084 stypes >>= 1;
1085 i++;
ee688b00 1086 }
3713b4e3
JB		 1087 nla_nest_end(msg, nl_ftypes);
1088 }
ee688b00 1089
3713b4e3 1090 nla_nest_end(msg, nl_ifs);
ee688b00 1091
3713b4e3
JB		 1092 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1093 if (!nl_ifs)
1094 return -ENOBUFS;
ee688b00 1095
3713b4e3
JB		 1096 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1097 nl_ftypes = nla_nest_start(msg, ift);
1098 if (!nl_ftypes)
1099 return -ENOBUFS;
1100 i = 0;
1101 stypes = mgmt_stypes[ift].rx;
1102 while (stypes) {
1103 if ((stypes & 1) &&
1104 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1105 (i << 4) | IEEE80211_FTYPE_MGMT))
1106 return -ENOBUFS;
1107 stypes >>= 1;
1108 i++;
1109 }
1110 nla_nest_end(msg, nl_ftypes);
1111 }
1112 nla_nest_end(msg, nl_ifs);
ee688b00 1113
3713b4e3
JB		 1114 return 0;
1115}
ee688b00 1116
3713b4e3
JB		 1117static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1118 struct sk_buff *msg, u32 portid, u32 seq,
1119 int flags, bool split, long *split_start,
1120 long *band_start, long *chan_start)
1121{
1122 void *hdr;
1123 struct nlattr *nl_bands, *nl_band;
1124 struct nlattr *nl_freqs, *nl_freq;
1125 struct nlattr *nl_cmds;
1126 enum ieee80211_band band;
1127 struct ieee80211_channel *chan;
1128 int i;
1129 const struct ieee80211_txrx_stypes *mgmt_stypes =
1130 dev->wiphy.mgmt_stypes;
1131 long start = 0, start_chan = 0, start_band = 0;
fe1abafd 1132 u32 features;
ee688b00 1133
3713b4e3
JB		 1134 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1135 if (!hdr)
1136 return -ENOBUFS;
ee688b00 1137
3713b4e3
JB		 1138 /* allow always using the variables */
1139 if (!split) {
1140 split_start = &start;
1141 band_start = &start_band;
1142 chan_start = &start_chan;
ee688b00 1143 }
ee688b00 1144
3713b4e3
JB		 1145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1146 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1147 wiphy_name(&dev->wiphy)) ||
1148 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1149 cfg80211_rdev_list_generation))
8fdc621d
JB		 1150 goto nla_put_failure;
1151
3713b4e3
JB		 1152 switch (*split_start) {
1153 case 0:
1154 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1155 dev->wiphy.retry_short) ||
1156 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1157 dev->wiphy.retry_long) ||
1158 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1159 dev->wiphy.frag_threshold) ||
1160 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1161 dev->wiphy.rts_threshold) ||
1162 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1163 dev->wiphy.coverage_class) ||
1164 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1165 dev->wiphy.max_scan_ssids) ||
1166 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1167 dev->wiphy.max_sched_scan_ssids) ||
1168 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1169 dev->wiphy.max_scan_ie_len) ||
1170 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1171 dev->wiphy.max_sched_scan_ie_len) ||
1172 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1173 dev->wiphy.max_match_sets))
9360ffd1 1174 goto nla_put_failure;
3713b4e3
JB		 1175
1176 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1177 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1178 goto nla_put_failure;
3713b4e3
JB		 1179 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1180 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1181 goto nla_put_failure;
1182 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1183 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1184 goto nla_put_failure;
1185 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1186 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1187 goto nla_put_failure;
1188 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1189 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1190 goto nla_put_failure;
1191 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1192 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1193 goto nla_put_failure;
8fdc621d 1194
3713b4e3
JB		 1195 (*split_start)++;
1196 if (split)
1197 break;
1198 case 1:
1199 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1200 sizeof(u32) * dev->wiphy.n_cipher_suites,
1201 dev->wiphy.cipher_suites))
1202 goto nla_put_failure;
4745fc09 1203
3713b4e3
JB		 1204 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1205 dev->wiphy.max_num_pmkids))
1206 goto nla_put_failure;
b23aa676 1207
3713b4e3
JB		 1208 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1209 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1210 goto nla_put_failure;
b23aa676 1211
3713b4e3
JB		 1212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1213 dev->wiphy.available_antennas_tx) ||
1214 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1215 dev->wiphy.available_antennas_rx))
9360ffd1 1216 goto nla_put_failure;
b23aa676 1217
3713b4e3
JB		 1218 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1219 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1220 dev->wiphy.probe_resp_offload))
1221 goto nla_put_failure;
8fdc621d 1222
3713b4e3
JB		 1223 if ((dev->wiphy.available_antennas_tx ||
1224 dev->wiphy.available_antennas_rx) &&
1225 dev->ops->get_antenna) {
1226 u32 tx_ant = 0, rx_ant = 0;
1227 int res;
1228 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1229 if (!res) {
1230 if (nla_put_u32(msg,
1231 NL80211_ATTR_WIPHY_ANTENNA_TX,
1232 tx_ant) ||
1233 nla_put_u32(msg,
1234 NL80211_ATTR_WIPHY_ANTENNA_RX,
1235 rx_ant))
1236 goto nla_put_failure;
1237 }
1238 }
a293911d 1239
3713b4e3
JB		 1240 (*split_start)++;
1241 if (split)
1242 break;
1243 case 2:
1244 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1245 dev->wiphy.interface_modes))
1246 goto nla_put_failure;
1247 (*split_start)++;
1248 if (split)
1249 break;
1250 case 3:
1251 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1252 if (!nl_bands)
1253 goto nla_put_failure;
f7ca38df 1254
3713b4e3
JB		 1255 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1256 struct ieee80211_supported_band *sband;
2e161f78 1257
3713b4e3 1258 sband = dev->wiphy.bands[band];
2e161f78 1259
3713b4e3
JB		 1260 if (!sband)
1261 continue;
1262
1263 nl_band = nla_nest_start(msg, band);
1264 if (!nl_band)
2e161f78 1265 goto nla_put_failure;
3713b4e3
JB		 1266
1267 switch (*chan_start) {
1268 case 0:
1269 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1270 goto nla_put_failure;
3713b4e3
JB		 1271 (*chan_start)++;
1272 if (split)
1273 break;
1274 default:
1275 /* add frequencies */
1276 nl_freqs = nla_nest_start(
1277 msg, NL80211_BAND_ATTR_FREQS);
1278 if (!nl_freqs)
1279 goto nla_put_failure;
1280
1281 for (i = *chan_start - 1;
1282 i < sband->n_channels;
1283 i++) {
1284 nl_freq = nla_nest_start(msg, i);
1285 if (!nl_freq)
1286 goto nla_put_failure;
1287
1288 chan = &sband->channels[i];
1289
cdc89b97
JB		 1290 if (nl80211_msg_put_channel(msg, chan,
1291 split))
3713b4e3
JB		 1292 goto nla_put_failure;
1293
1294 nla_nest_end(msg, nl_freq);
1295 if (split)
1296 break;
1297 }
1298 if (i < sband->n_channels)
1299 *chan_start = i + 2;
1300 else
1301 *chan_start = 0;
1302 nla_nest_end(msg, nl_freqs);
1303 }
1304
1305 nla_nest_end(msg, nl_band);
1306
1307 if (split) {
1308 /* start again here */
1309 if (*chan_start)
1310 band--;
1311 break;
2e161f78 1312 }
2e161f78 1313 }
3713b4e3 1314 nla_nest_end(msg, nl_bands);
2e161f78 1315
3713b4e3
JB		 1316 if (band < IEEE80211_NUM_BANDS)
1317 *band_start = band + 1;
1318 else
1319 *band_start = 0;
74b70a4e 1320
3713b4e3
JB		 1321 /* if bands & channels are done, continue outside */
1322 if (*band_start == 0 && *chan_start == 0)
1323 (*split_start)++;
1324 if (split)
1325 break;
1326 case 4:
1327 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1328 if (!nl_cmds)
2e161f78
JB		 1329 goto nla_put_failure;
1330
3713b4e3
JB		 1331 i = 0;
1332#define CMD(op, n) \
1333 do { \
1334 if (dev->ops->op) { \
1335 i++; \
1336 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1337 goto nla_put_failure; \
1338 } \
1339 } while (0)
1340
1341 CMD(add_virtual_intf, NEW_INTERFACE);
1342 CMD(change_virtual_intf, SET_INTERFACE);
1343 CMD(add_key, NEW_KEY);
1344 CMD(start_ap, START_AP);
1345 CMD(add_station, NEW_STATION);
1346 CMD(add_mpath, NEW_MPATH);
1347 CMD(update_mesh_config, SET_MESH_CONFIG);
1348 CMD(change_bss, SET_BSS);
1349 CMD(auth, AUTHENTICATE);
1350 CMD(assoc, ASSOCIATE);
1351 CMD(deauth, DEAUTHENTICATE);
1352 CMD(disassoc, DISASSOCIATE);
1353 CMD(join_ibss, JOIN_IBSS);
1354 CMD(join_mesh, JOIN_MESH);
1355 CMD(set_pmksa, SET_PMKSA);
1356 CMD(del_pmksa, DEL_PMKSA);
1357 CMD(flush_pmksa, FLUSH_PMKSA);
1358 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1359 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1360 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1361 CMD(mgmt_tx, FRAME);
1362 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1363 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1364 i++;
1365 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1366 goto nla_put_failure;
2e161f78 1367 }
3713b4e3
JB		 1368 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1369 dev->ops->join_mesh) {
1370 i++;
1371 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1372 goto nla_put_failure;
1373 }
1374 CMD(set_wds_peer, SET_WDS_PEER);
1375 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1376 CMD(tdls_mgmt, TDLS_MGMT);
1377 CMD(tdls_oper, TDLS_OPER);
1378 }
1379 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1380 CMD(sched_scan_start, START_SCHED_SCAN);
1381 CMD(probe_client, PROBE_CLIENT);
1382 CMD(set_noack_map, SET_NOACK_MAP);
1383 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1384 i++;
1385 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1386 goto nla_put_failure;
1387 }
1388 CMD(start_p2p_device, START_P2P_DEVICE);
1389 CMD(set_mcast_rate, SET_MCAST_RATE);
5de17984
AS		 1390 if (split) {
1391 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1392 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1393 }
2e161f78 1394
3713b4e3
JB		 1395#ifdef CONFIG_NL80211_TESTMODE
1396 CMD(testmode_cmd, TESTMODE);
1397#endif
ff1b6e69 1398
3713b4e3 1399#undef CMD
ff1b6e69 1400
3713b4e3
JB		 1401 if (dev->ops->connect || dev->ops->auth) {
1402 i++;
1403 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1404 goto nla_put_failure;
ff1b6e69
JB		 1405 }
1406
3713b4e3
JB		 1407 if (dev->ops->disconnect || dev->ops->deauth) {
1408 i++;
1409 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1410 goto nla_put_failure;
1411 }
1412
1413 nla_nest_end(msg, nl_cmds);
1414 (*split_start)++;
1415 if (split)
1416 break;
1417 case 5:
1418 if (dev->ops->remain_on_channel &&
1419 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1420 nla_put_u32(msg,
1421 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1422 dev->wiphy.max_remain_on_channel_duration))
1423 goto nla_put_failure;
1424
1425 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1426 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1427 goto nla_put_failure;
1428
1429 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1430 goto nla_put_failure;
1431 (*split_start)++;
1432 if (split)
1433 break;
1434 case 6:
1435#ifdef CONFIG_PM
b56cf720 1436 if (nl80211_send_wowlan(msg, dev, split))
3713b4e3
JB		 1437 goto nla_put_failure;
1438 (*split_start)++;
1439 if (split)
1440 break;
1441#else
1442 (*split_start)++;
dfb89c56 1443#endif
3713b4e3
JB		 1444 case 7:
1445 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1446 dev->wiphy.software_iftypes))
1447 goto nla_put_failure;
ff1b6e69 1448
cdc89b97 1449 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
3713b4e3 1450 goto nla_put_failure;
7527a782 1451
3713b4e3
JB		 1452 (*split_start)++;
1453 if (split)
1454 break;
1455 case 8:
1456 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1457 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1458 dev->wiphy.ap_sme_capa))
1459 goto nla_put_failure;
7527a782 1460
fe1abafd
JB		 1461 features = dev->wiphy.features;
1462 /*
1463 * We can only add the per-channel limit information if the
1464 * dump is split, otherwise it makes it too big. Therefore
1465 * only advertise it in that case.
1466 */
1467 if (split)
1468 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1469 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1470 goto nla_put_failure;
562a7480 1471
3713b4e3
JB		 1472 if (dev->wiphy.ht_capa_mod_mask &&
1473 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1474 sizeof(*dev->wiphy.ht_capa_mod_mask),
1475 dev->wiphy.ht_capa_mod_mask))
1476 goto nla_put_failure;
1f074bd8 1477
3713b4e3
JB		 1478 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1479 dev->wiphy.max_acl_mac_addrs &&
1480 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1481 dev->wiphy.max_acl_mac_addrs))
1482 goto nla_put_failure;
7e7c8926 1483
3713b4e3
JB		 1484 /*
1485 * Any information below this point is only available to
1486 * applications that can deal with it being split. This
1487 * helps ensure that newly added capabilities don't break
1488 * older tools by overrunning their buffers.
1489 *
1490 * We still increment split_start so that in the split
1491 * case we'll continue with more data in the next round,
1492 * but break unconditionally so unsplit data stops here.
1493 */
1494 (*split_start)++;
1495 break;
1496 case 9:
fe1abafd
JB		 1497 if (dev->wiphy.extended_capabilities &&
1498 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1499 dev->wiphy.extended_capabilities_len,
1500 dev->wiphy.extended_capabilities) ||
1501 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1502 dev->wiphy.extended_capabilities_len,
1503 dev->wiphy.extended_capabilities_mask)))
1504 goto nla_put_failure;
a50df0c4 1505
ee2aca34
JB		 1506 if (dev->wiphy.vht_capa_mod_mask &&
1507 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1508 sizeof(*dev->wiphy.vht_capa_mod_mask),
1509 dev->wiphy.vht_capa_mod_mask))
1510 goto nla_put_failure;
1511
3713b4e3
JB		 1512 /* done */
1513 *split_start = 0;
1514 break;
1515 }
55682965
JB		 1516 return genlmsg_end(msg, hdr);
1517
1518 nla_put_failure:
bc3ed28c
TG		 1519 genlmsg_cancel(msg, hdr);
1520 return -EMSGSIZE;
55682965
JB		 1521}
1522
1523static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1524{
645e77de 1525 int idx = 0, ret;
55682965
JB		 1526 int start = cb->args[0];
1527 struct cfg80211_registered_device *dev;
3713b4e3
JB		 1528 s64 filter_wiphy = -1;
1529 bool split = false;
1530 struct nlattr **tb = nl80211_fam.attrbuf;
1531 int res;
55682965 1532
5fe231e8 1533 rtnl_lock();
3713b4e3
JB		 1534 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1535 tb, nl80211_fam.maxattr, nl80211_policy);
1536 if (res == 0) {
1537 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1538 if (tb[NL80211_ATTR_WIPHY])
1539 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1540 if (tb[NL80211_ATTR_WDEV])
1541 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1542 if (tb[NL80211_ATTR_IFINDEX]) {
1543 struct net_device *netdev;
1544 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1545
1546 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
5fe231e8 1547 if (!netdev)
3713b4e3 1548 return -ENODEV;
3713b4e3
JB		 1549 if (netdev->ieee80211_ptr) {
1550 dev = wiphy_to_dev(
1551 netdev->ieee80211_ptr->wiphy);
1552 filter_wiphy = dev->wiphy_idx;
1553 }
1554 dev_put(netdev);
1555 }
1556 }
1557
79c97e97 1558 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1559 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1560 continue;
b4637271 1561 if (++idx <= start)
55682965 1562 continue;
3713b4e3
JB		 1563 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1564 continue;
1565 /* attempt to fit multiple wiphy data chunks into the skb */
1566 do {
1567 ret = nl80211_send_wiphy(dev, skb,
1568 NETLINK_CB(cb->skb).portid,
1569 cb->nlh->nlmsg_seq,
1570 NLM_F_MULTI,
1571 split, &cb->args[1],
1572 &cb->args[2],
1573 &cb->args[3]);
1574 if (ret < 0) {
1575 /*
1576 * If sending the wiphy data didn't fit (ENOBUFS
1577 * or EMSGSIZE returned), this SKB is still
1578 * empty (so it's not too big because another
1579 * wiphy dataset is already in the skb) and
1580 * we've not tried to adjust the dump allocation
1581 * yet ... then adjust the alloc size to be
1582 * bigger, and return 1 but with the empty skb.
1583 * This results in an empty message being RX'ed
1584 * in userspace, but that is ignored.
1585 *
1586 * We can then retry with the larger buffer.
1587 */
1588 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1589 !skb->len &&
1590 cb->min_dump_alloc < 4096) {
1591 cb->min_dump_alloc = 4096;
3713b4e3
JB		 1592 return 1;
1593 }
1594 idx--;
1595 break;
645e77de 1596 }
3713b4e3
JB		 1597 } while (cb->args[1] > 0);
1598 break;
55682965 1599 }
5fe231e8 1600 rtnl_unlock();
55682965
JB		 1601
1602 cb->args[0] = idx;
1603
1604 return skb->len;
1605}
1606
1607static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1608{
1609 struct sk_buff *msg;
4c476991 1610 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1611
645e77de 1612 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1613 if (!msg)
4c476991 1614 return -ENOMEM;
55682965 1615
3713b4e3
JB		 1616 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1617 false, NULL, NULL, NULL) < 0) {
4c476991
JB		 1618 nlmsg_free(msg);
1619 return -ENOBUFS;
1620 }
55682965 1621
134e6375 1622 return genlmsg_reply(msg, info);
55682965
JB		 1623}
1624
31888487
JM		 1625static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1626 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1627 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1628 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1629 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1630 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1631};
1632
1633static int parse_txq_params(struct nlattr *tb[],
1634 struct ieee80211_txq_params *txq_params)
1635{
a3304b0a 1636 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1637 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1638 !tb[NL80211_TXQ_ATTR_AIFS])
1639 return -EINVAL;
1640
a3304b0a 1641 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1642 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1643 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1644 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1645 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1646
a3304b0a
JB		 1647 if (txq_params->ac >= NL80211_NUM_ACS)
1648 return -EINVAL;
1649
31888487
JM		 1650 return 0;
1651}
1652
f444de05
JB		 1653static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1654{
1655 /*
cc1d2806
JB		 1656 * You can only set the channel explicitly for WDS interfaces,
1657 * all others have their channel managed via their respective
1658 * "establish a connection" command (connect, join, ...)
1659 *
1660 * For AP/GO and mesh mode, the channel can be set with the
1661 * channel userspace API, but is only stored and passed to the
1662 * low-level driver when the AP starts or the mesh is joined.
1663 * This is for backward compatibility, userspace can also give
1664 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1665 *
1666 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1667 * whatever else is going on, so they have their own special
1668 * operation to set the monitor channel if possible.
f444de05
JB		 1669 */
1670 return !wdev ||
1671 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1672 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1673 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1674 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1675}
1676
683b6d3b
JB		 1677static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1678 struct genl_info *info,
1679 struct cfg80211_chan_def *chandef)
1680{
dbeca2ea 1681 u32 control_freq;
683b6d3b
JB		 1682
1683 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1684 return -EINVAL;
1685
1686 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1687
1688 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1689 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1690 chandef->center_freq1 = control_freq;
1691 chandef->center_freq2 = 0;
683b6d3b
JB		 1692
1693 /* Primary channel not allowed */
1694 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1695 return -EINVAL;
1696
3d9d1d66
JB		 1697 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1698 enum nl80211_channel_type chantype;
1699
1700 chantype = nla_get_u32(
1701 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1702
1703 switch (chantype) {
1704 case NL80211_CHAN_NO_HT:
1705 case NL80211_CHAN_HT20:
1706 case NL80211_CHAN_HT40PLUS:
1707 case NL80211_CHAN_HT40MINUS:
1708 cfg80211_chandef_create(chandef, chandef->chan,
1709 chantype);
1710 break;
1711 default:
1712 return -EINVAL;
1713 }
1714 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1715 chandef->width =
1716 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1717 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1718 chandef->center_freq1 =
1719 nla_get_u32(
1720 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1721 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1722 chandef->center_freq2 =
1723 nla_get_u32(
1724 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1725 }
1726
9f5e8f6e 1727 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1728 return -EINVAL;
1729
9f5e8f6e
JB		 1730 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1731 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1732 return -EINVAL;
1733
683b6d3b
JB		 1734 return 0;
1735}
1736
f444de05
JB		 1737static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1738 struct wireless_dev *wdev,
1739 struct genl_info *info)
1740{
683b6d3b 1741 struct cfg80211_chan_def chandef;
f444de05 1742 int result;
e8c9bd5b
JB		 1743 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1744
1745 if (wdev)
1746 iftype = wdev->iftype;
f444de05 1747
f444de05
JB		 1748 if (!nl80211_can_set_dev_channel(wdev))
1749 return -EOPNOTSUPP;
1750
683b6d3b
JB		 1751 result = nl80211_parse_chandef(rdev, info, &chandef);
1752 if (result)
1753 return result;
f444de05 1754
e8c9bd5b 1755 switch (iftype) {
aa430da4
JB		 1756 case NL80211_IFTYPE_AP:
1757 case NL80211_IFTYPE_P2P_GO:
1758 if (wdev->beacon_interval) {
1759 result = -EBUSY;
1760 break;
1761 }
683b6d3b 1762 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1763 result = -EINVAL;
1764 break;
1765 }
683b6d3b 1766 wdev->preset_chandef = chandef;
aa430da4
JB		 1767 result = 0;
1768 break;
cc1d2806 1769 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1770 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1771 break;
e8c9bd5b 1772 case NL80211_IFTYPE_MONITOR:
683b6d3b 1773 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1774 break;
aa430da4 1775 default:
e8c9bd5b 1776 result = -EINVAL;
f444de05 1777 }
f444de05
JB		 1778
1779 return result;
1780}
1781
1782static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1783{
4c476991
JB		 1784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1785 struct net_device *netdev = info->user_ptr[1];
f444de05 1786
4c476991 1787 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1788}
1789
e8347eba
BJ		 1790static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1791{
43b19952
JB		 1792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1793 struct net_device *dev = info->user_ptr[1];
1794 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1795 const u8 *bssid;
e8347eba
BJ		 1796
1797 if (!info->attrs[NL80211_ATTR_MAC])
1798 return -EINVAL;
1799
43b19952
JB		 1800 if (netif_running(dev))
1801 return -EBUSY;
e8347eba 1802
43b19952
JB		 1803 if (!rdev->ops->set_wds_peer)
1804 return -EOPNOTSUPP;
e8347eba 1805
43b19952
JB		 1806 if (wdev->iftype != NL80211_IFTYPE_WDS)
1807 return -EOPNOTSUPP;
e8347eba
BJ		 1808
1809 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1810 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1811}
1812
1813
55682965
JB		 1814static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1815{
1816 struct cfg80211_registered_device *rdev;
f444de05
JB		 1817 struct net_device *netdev = NULL;
1818 struct wireless_dev *wdev;
a1e567c8 1819 int result = 0, rem_txq_params = 0;
31888487 1820 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1821 u32 changed;
1822 u8 retry_short = 0, retry_long = 0;
1823 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1824 u8 coverage_class = 0;
55682965 1825
5fe231e8
JB		 1826 ASSERT_RTNL();
1827
f444de05
JB		 1828 /*
1829 * Try to find the wiphy and netdev. Normally this
1830 * function shouldn't need the netdev, but this is
1831 * done for backward compatibility -- previously
1832 * setting the channel was done per wiphy, but now
1833 * it is per netdev. Previous userland like hostapd
1834 * also passed a netdev to set_wiphy, so that it is
1835 * possible to let that go to the right netdev!
1836 */
4bbf4d56 1837
f444de05
JB		 1838 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1839 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1840
1841 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1842 if (netdev && netdev->ieee80211_ptr)
f444de05 1843 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1844 else
f444de05 1845 netdev = NULL;
4bbf4d56
JB		 1846 }
1847
f444de05 1848 if (!netdev) {
878d9ec7
JB		 1849 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1850 info->attrs);
5fe231e8 1851 if (IS_ERR(rdev))
4c476991 1852 return PTR_ERR(rdev);
f444de05
JB		 1853 wdev = NULL;
1854 netdev = NULL;
1855 result = 0;
71fe96bf 1856 } else
f444de05 1857 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1858
1859 /*
1860 * end workaround code, by now the rdev is available
1861 * and locked, and wdev may or may not be NULL.
1862 */
4bbf4d56
JB		 1863
1864 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1865 result = cfg80211_dev_rename(
1866 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1867
4bbf4d56
JB		 1868 if (result)
1869 goto bad_res;
31888487
JM		 1870
1871 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1872 struct ieee80211_txq_params txq_params;
1873 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1874
1875 if (!rdev->ops->set_txq_params) {
1876 result = -EOPNOTSUPP;
1877 goto bad_res;
1878 }
1879
f70f01c2
EP		 1880 if (!netdev) {
1881 result = -EINVAL;
1882 goto bad_res;
1883 }
1884
133a3ff2
JB		 1885 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1886 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1887 result = -EINVAL;
1888 goto bad_res;
1889 }
1890
2b5f8b0b
JB		 1891 if (!netif_running(netdev)) {
1892 result = -ENETDOWN;
1893 goto bad_res;
1894 }
1895
31888487
JM		 1896 nla_for_each_nested(nl_txq_params,
1897 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1898 rem_txq_params) {
1899 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1900 nla_data(nl_txq_params),
1901 nla_len(nl_txq_params),
1902 txq_params_policy);
1903 result = parse_txq_params(tb, &txq_params);
1904 if (result)
1905 goto bad_res;
1906
e35e4d28
HG		 1907 result = rdev_set_txq_params(rdev, netdev,
1908 &txq_params);
31888487
JM		 1909 if (result)
1910 goto bad_res;
1911 }
1912 }
55682965 1913
72bdcf34 1914 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1915 result = __nl80211_set_channel(rdev,
1916 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1917 info);
72bdcf34
JM		 1918 if (result)
1919 goto bad_res;
1920 }
1921
98d2ff8b 1922 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1923 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1924 enum nl80211_tx_power_setting type;
1925 int idx, mbm = 0;
1926
c8442118
JB		 1927 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1928 txp_wdev = NULL;
1929
98d2ff8b 1930 if (!rdev->ops->set_tx_power) {
60ea385f 1931 result = -EOPNOTSUPP;
98d2ff8b
JO		 1932 goto bad_res;
1933 }
1934
1935 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1936 type = nla_get_u32(info->attrs[idx]);
1937
1938 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1939 (type != NL80211_TX_POWER_AUTOMATIC)) {
1940 result = -EINVAL;
1941 goto bad_res;
1942 }
1943
1944 if (type != NL80211_TX_POWER_AUTOMATIC) {
1945 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1946 mbm = nla_get_u32(info->attrs[idx]);
1947 }
1948
c8442118 1949 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1950 if (result)
1951 goto bad_res;
1952 }
1953
afe0cbf8
BR		 1954 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1955 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1956 u32 tx_ant, rx_ant;
7f531e03
BR		 1957 if ((!rdev->wiphy.available_antennas_tx &&
1958 !rdev->wiphy.available_antennas_rx) ||
1959 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1960 result = -EOPNOTSUPP;
1961 goto bad_res;
1962 }
1963
1964 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1965 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1966
a7ffac95 1967 /* reject antenna configurations which don't match the
7f531e03
BR		 1968 * available antenna masks, except for the "all" mask */
1969 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1970 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1971 result = -EINVAL;
1972 goto bad_res;
1973 }
1974
7f531e03
BR		 1975 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1976 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1977
e35e4d28 1978 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1979 if (result)
1980 goto bad_res;
1981 }
1982
b9a5f8ca
JM		 1983 changed = 0;
1984
1985 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1986 retry_short = nla_get_u8(
1987 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1988 if (retry_short == 0) {
1989 result = -EINVAL;
1990 goto bad_res;
1991 }
1992 changed |= WIPHY_PARAM_RETRY_SHORT;
1993 }
1994
1995 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1996 retry_long = nla_get_u8(
1997 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1998 if (retry_long == 0) {
1999 result = -EINVAL;
2000 goto bad_res;
2001 }
2002 changed |= WIPHY_PARAM_RETRY_LONG;
2003 }
2004
2005 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2006 frag_threshold = nla_get_u32(
2007 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2008 if (frag_threshold < 256) {
2009 result = -EINVAL;
2010 goto bad_res;
2011 }
2012 if (frag_threshold != (u32) -1) {
2013 /*
2014 * Fragments (apart from the last one) are required to
2015 * have even length. Make the fragmentation code
2016 * simpler by stripping LSB should someone try to use
2017 * odd threshold value.
2018 */
2019 frag_threshold &= ~0x1;
2020 }
2021 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2022 }
2023
2024 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2025 rts_threshold = nla_get_u32(
2026 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2027 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2028 }
2029
81077e82
LT		 2030 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2031 coverage_class = nla_get_u8(
2032 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2033 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2034 }
2035
b9a5f8ca
JM		 2036 if (changed) {
2037 u8 old_retry_short, old_retry_long;
2038 u32 old_frag_threshold, old_rts_threshold;
81077e82 2039 u8 old_coverage_class;
b9a5f8ca
JM		 2040
2041 if (!rdev->ops->set_wiphy_params) {
2042 result = -EOPNOTSUPP;
2043 goto bad_res;
2044 }
2045
2046 old_retry_short = rdev->wiphy.retry_short;
2047 old_retry_long = rdev->wiphy.retry_long;
2048 old_frag_threshold = rdev->wiphy.frag_threshold;
2049 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2050 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2051
2052 if (changed & WIPHY_PARAM_RETRY_SHORT)
2053 rdev->wiphy.retry_short = retry_short;
2054 if (changed & WIPHY_PARAM_RETRY_LONG)
2055 rdev->wiphy.retry_long = retry_long;
2056 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2057 rdev->wiphy.frag_threshold = frag_threshold;
2058 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2059 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2060 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2061 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2062
e35e4d28 2063 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2064 if (result) {
2065 rdev->wiphy.retry_short = old_retry_short;
2066 rdev->wiphy.retry_long = old_retry_long;
2067 rdev->wiphy.frag_threshold = old_frag_threshold;
2068 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2069 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2070 }
2071 }
72bdcf34 2072
306d6112 2073 bad_res:
f444de05
JB		 2074 if (netdev)
2075 dev_put(netdev);
55682965
JB		 2076 return result;
2077}
2078
71bbc994
JB		 2079static inline u64 wdev_id(struct wireless_dev *wdev)
2080{
2081 return (u64)wdev->identifier |
2082 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2083}
55682965 2084
683b6d3b
JB		 2085static int nl80211_send_chandef(struct sk_buff *msg,
2086 struct cfg80211_chan_def *chandef)
2087{
9f5e8f6e 2088 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2089
683b6d3b
JB		 2090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2091 chandef->chan->center_freq))
2092 return -ENOBUFS;
3d9d1d66
JB		 2093 switch (chandef->width) {
2094 case NL80211_CHAN_WIDTH_20_NOHT:
2095 case NL80211_CHAN_WIDTH_20:
2096 case NL80211_CHAN_WIDTH_40:
2097 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2098 cfg80211_get_chandef_type(chandef)))
2099 return -ENOBUFS;
2100 break;
2101 default:
2102 break;
2103 }
2104 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2105 return -ENOBUFS;
2106 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2107 return -ENOBUFS;
2108 if (chandef->center_freq2 &&
2109 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2110 return -ENOBUFS;
2111 return 0;
2112}
2113
15e47304 2114static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2115 struct cfg80211_registered_device *rdev,
72fb2abc 2116 struct wireless_dev *wdev)
55682965 2117{
72fb2abc 2118 struct net_device *dev = wdev->netdev;
55682965
JB		 2119 void *hdr;
2120
15e47304 2121 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2122 if (!hdr)
2123 return -1;
2124
72fb2abc
JB		 2125 if (dev &&
2126 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2127 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2128 goto nla_put_failure;
2129
2130 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2131 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2132 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2133 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2134 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2135 rdev->devlist_generation ^
2136 (cfg80211_rdev_list_generation << 2)))
2137 goto nla_put_failure;
f5ea9120 2138
5b7ccaf3 2139 if (rdev->ops->get_channel) {
683b6d3b
JB		 2140 int ret;
2141 struct cfg80211_chan_def chandef;
2142
2143 ret = rdev_get_channel(rdev, wdev, &chandef);
2144 if (ret == 0) {
2145 if (nl80211_send_chandef(msg, &chandef))
2146 goto nla_put_failure;
2147 }
d91df0e3
PF		 2148 }
2149
b84e7a05
AQ		 2150 if (wdev->ssid_len) {
2151 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2152 goto nla_put_failure;
2153 }
2154
55682965
JB		 2155 return genlmsg_end(msg, hdr);
2156
2157 nla_put_failure:
bc3ed28c
TG		 2158 genlmsg_cancel(msg, hdr);
2159 return -EMSGSIZE;
55682965
JB		 2160}
2161
2162static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2163{
2164 int wp_idx = 0;
2165 int if_idx = 0;
2166 int wp_start = cb->args[0];
2167 int if_start = cb->args[1];
f5ea9120 2168 struct cfg80211_registered_device *rdev;
55682965
JB		 2169 struct wireless_dev *wdev;
2170
5fe231e8 2171 rtnl_lock();
f5ea9120
JB		 2172 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2173 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2174 continue;
bba95fef
JB		 2175 if (wp_idx < wp_start) {
2176 wp_idx++;
55682965 2177 continue;
bba95fef 2178 }
55682965
JB		 2179 if_idx = 0;
2180
89a54e48 2181 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2182 if (if_idx < if_start) {
2183 if_idx++;
55682965 2184 continue;
bba95fef 2185 }
15e47304 2186 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2187 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2188 rdev, wdev) < 0) {
bba95fef
JB		 2189 goto out;
2190 }
2191 if_idx++;
55682965 2192 }
bba95fef
JB		 2193
2194 wp_idx++;
55682965 2195 }
bba95fef 2196 out:
5fe231e8 2197 rtnl_unlock();
55682965
JB		 2198
2199 cb->args[0] = wp_idx;
2200 cb->args[1] = if_idx;
2201
2202 return skb->len;
2203}
2204
2205static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2206{
2207 struct sk_buff *msg;
4c476991 2208 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2209 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2210
fd2120ca 2211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2212 if (!msg)
4c476991 2213 return -ENOMEM;
55682965 2214
15e47304 2215 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2216 dev, wdev) < 0) {
4c476991
JB		 2217 nlmsg_free(msg);
2218 return -ENOBUFS;
2219 }
55682965 2220
134e6375 2221 return genlmsg_reply(msg, info);
55682965
JB		 2222}
2223
66f7ac50
MW		 2224static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2225 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2226 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2227 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2228 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2229 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2230 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2231};
2232
2233static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2234{
2235 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2236 int flag;
2237
2238 *mntrflags = 0;
2239
2240 if (!nla)
2241 return -EINVAL;
2242
2243 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2244 nla, mntr_flags_policy))
2245 return -EINVAL;
2246
2247 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2248 if (flags[flag])
2249 *mntrflags |= (1<<flag);
2250
2251 return 0;
2252}
2253
9bc383de 2254static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2255 struct net_device *netdev, u8 use_4addr,
2256 enum nl80211_iftype iftype)
9bc383de 2257{
ad4bb6f8 2258 if (!use_4addr) {
f350a0a8 2259 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2260 return -EBUSY;
9bc383de 2261 return 0;
ad4bb6f8 2262 }
9bc383de
JB		 2263
2264 switch (iftype) {
2265 case NL80211_IFTYPE_AP_VLAN:
2266 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2267 return 0;
2268 break;
2269 case NL80211_IFTYPE_STATION:
2270 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2271 return 0;
2272 break;
2273 default:
2274 break;
2275 }
2276
2277 return -EOPNOTSUPP;
2278}
2279
55682965
JB		 2280static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2281{
4c476991 2282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2283 struct vif_params params;
e36d56b6 2284 int err;
04a773ad 2285 enum nl80211_iftype otype, ntype;
4c476991 2286 struct net_device *dev = info->user_ptr[1];
92ffe055 2287 u32 _flags, *flags = NULL;
ac7f9cfa 2288 bool change = false;
55682965 2289
2ec600d6
LCC		 2290 memset(&params, 0, sizeof(params));
2291
04a773ad 2292 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2293
723b038d 2294 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2295 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2296 if (otype != ntype)
ac7f9cfa 2297 change = true;
4c476991
JB		 2298 if (ntype > NL80211_IFTYPE_MAX)
2299 return -EINVAL;
723b038d
JB		 2300 }
2301
92ffe055 2302 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2303 struct wireless_dev *wdev = dev->ieee80211_ptr;
2304
4c476991
JB		 2305 if (ntype != NL80211_IFTYPE_MESH_POINT)
2306 return -EINVAL;
29cbe68c
JB		 2307 if (netif_running(dev))
2308 return -EBUSY;
2309
2310 wdev_lock(wdev);
2311 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2312 IEEE80211_MAX_MESH_ID_LEN);
2313 wdev->mesh_id_up_len =
2314 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2315 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2316 wdev->mesh_id_up_len);
2317 wdev_unlock(wdev);
2ec600d6
LCC		 2318 }
2319
8b787643
FF		 2320 if (info->attrs[NL80211_ATTR_4ADDR]) {
2321 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2322 change = true;
ad4bb6f8 2323 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2324 if (err)
4c476991 2325 return err;
8b787643
FF		 2326 } else {
2327 params.use_4addr = -1;
2328 }
2329
92ffe055 2330 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2331 if (ntype != NL80211_IFTYPE_MONITOR)
2332 return -EINVAL;
92ffe055
JB		 2333 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2334 &_flags);
ac7f9cfa 2335 if (err)
4c476991 2336 return err;
ac7f9cfa
JB		 2337
2338 flags = &_flags;
2339 change = true;
92ffe055 2340 }
3b85875a 2341
e057d3c3
FF		 2342 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2343 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2344 return -EOPNOTSUPP;
2345
ac7f9cfa 2346 if (change)
3d54d255 2347 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2348 else
2349 err = 0;
60719ffd 2350
9bc383de
JB		 2351 if (!err && params.use_4addr != -1)
2352 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2353
55682965
JB		 2354 return err;
2355}
2356
2357static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2358{
4c476991 2359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2360 struct vif_params params;
84efbb84 2361 struct wireless_dev *wdev;
1c90f9d4 2362 struct sk_buff *msg;
55682965
JB		 2363 int err;
2364 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2365 u32 flags;
55682965 2366
2ec600d6
LCC		 2367 memset(&params, 0, sizeof(params));
2368
55682965
JB		 2369 if (!info->attrs[NL80211_ATTR_IFNAME])
2370 return -EINVAL;
2371
2372 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2373 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2374 if (type > NL80211_IFTYPE_MAX)
2375 return -EINVAL;
2376 }
2377
79c97e97 2378 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2379 !(rdev->wiphy.interface_modes & (1 << type)))
2380 return -EOPNOTSUPP;
55682965 2381
1c18f145
AS		 2382 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2383 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2384 ETH_ALEN);
2385 if (!is_valid_ether_addr(params.macaddr))
2386 return -EADDRNOTAVAIL;
2387 }
2388
9bc383de 2389 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2390 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2391 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2392 if (err)
4c476991 2393 return err;
9bc383de 2394 }
8b787643 2395
1c90f9d4
JB		 2396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2397 if (!msg)
2398 return -ENOMEM;
2399
66f7ac50
MW		 2400 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2401 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2402 &flags);
e057d3c3
FF		 2403
2404 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2405 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2406 return -EOPNOTSUPP;
2407
e35e4d28
HG		 2408 wdev = rdev_add_virtual_intf(rdev,
2409 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2410 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2411 if (IS_ERR(wdev)) {
2412 nlmsg_free(msg);
84efbb84 2413 return PTR_ERR(wdev);
1c90f9d4 2414 }
2ec600d6 2415
98104fde
JB		 2416 switch (type) {
2417 case NL80211_IFTYPE_MESH_POINT:
2418 if (!info->attrs[NL80211_ATTR_MESH_ID])
2419 break;
29cbe68c
JB		 2420 wdev_lock(wdev);
2421 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2422 IEEE80211_MAX_MESH_ID_LEN);
2423 wdev->mesh_id_up_len =
2424 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2425 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2426 wdev->mesh_id_up_len);
2427 wdev_unlock(wdev);
98104fde
JB		 2428 break;
2429 case NL80211_IFTYPE_P2P_DEVICE:
2430 /*
2431 * P2P Device doesn't have a netdev, so doesn't go
2432 * through the netdev notifier and must be added here
2433 */
2434 mutex_init(&wdev->mtx);
2435 INIT_LIST_HEAD(&wdev->event_list);
2436 spin_lock_init(&wdev->event_lock);
2437 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2438 spin_lock_init(&wdev->mgmt_registrations_lock);
2439
98104fde
JB		 2440 wdev->identifier = ++rdev->wdev_id;
2441 list_add_rcu(&wdev->list, &rdev->wdev_list);
2442 rdev->devlist_generation++;
98104fde
JB		 2443 break;
2444 default:
2445 break;
29cbe68c
JB		 2446 }
2447
15e47304 2448 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2449 rdev, wdev) < 0) {
2450 nlmsg_free(msg);
2451 return -ENOBUFS;
2452 }
2453
2454 return genlmsg_reply(msg, info);
55682965
JB		 2455}
2456
2457static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2458{
4c476991 2459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2460 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2461
4c476991
JB		 2462 if (!rdev->ops->del_virtual_intf)
2463 return -EOPNOTSUPP;
55682965 2464
84efbb84
JB		 2465 /*
2466 * If we remove a wireless device without a netdev then clear
2467 * user_ptr[1] so that nl80211_post_doit won't dereference it
2468 * to check if it needs to do dev_put(). Otherwise it crashes
2469 * since the wdev has been freed, unlike with a netdev where
2470 * we need the dev_put() for the netdev to really be freed.
2471 */
2472 if (!wdev->netdev)
2473 info->user_ptr[1] = NULL;
2474
e35e4d28 2475 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2476}
2477
1d9d9213
SW		 2478static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2479{
2480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2481 struct net_device *dev = info->user_ptr[1];
2482 u16 noack_map;
2483
2484 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2485 return -EINVAL;
2486
2487 if (!rdev->ops->set_noack_map)
2488 return -EOPNOTSUPP;
2489
2490 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2491
e35e4d28 2492 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2493}
2494
41ade00f
JB		 2495struct get_key_cookie {
2496 struct sk_buff *msg;
2497 int error;
b9454e83 2498 int idx;
41ade00f
JB		 2499};
2500
2501static void get_key_callback(void *c, struct key_params *params)
2502{
b9454e83 2503 struct nlattr *key;
41ade00f
JB		 2504 struct get_key_cookie *cookie = c;
2505
9360ffd1
DM		 2506 if ((params->key &&
2507 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2508 params->key_len, params->key)) ||
2509 (params->seq &&
2510 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2511 params->seq_len, params->seq)) ||
2512 (params->cipher &&
2513 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2514 params->cipher)))
2515 goto nla_put_failure;
41ade00f 2516
b9454e83
JB		 2517 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2518 if (!key)
2519 goto nla_put_failure;
2520
9360ffd1
DM		 2521 if ((params->key &&
2522 nla_put(cookie->msg, NL80211_KEY_DATA,
2523 params->key_len, params->key)) ||
2524 (params->seq &&
2525 nla_put(cookie->msg, NL80211_KEY_SEQ,
2526 params->seq_len, params->seq)) ||
2527 (params->cipher &&
2528 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2529 params->cipher)))
2530 goto nla_put_failure;
b9454e83 2531
9360ffd1
DM		 2532 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2533 goto nla_put_failure;
b9454e83
JB		 2534
2535 nla_nest_end(cookie->msg, key);
2536
41ade00f
JB		 2537 return;
2538 nla_put_failure:
2539 cookie->error = 1;
2540}
2541
2542static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2543{
4c476991 2544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2545 int err;
4c476991 2546 struct net_device *dev = info->user_ptr[1];
41ade00f 2547 u8 key_idx = 0;
e31b8213
JB		 2548 const u8 *mac_addr = NULL;
2549 bool pairwise;
41ade00f
JB		 2550 struct get_key_cookie cookie = {
2551 .error = 0,
2552 };
2553 void *hdr;
2554 struct sk_buff *msg;
2555
2556 if (info->attrs[NL80211_ATTR_KEY_IDX])
2557 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2558
3cfcf6ac 2559 if (key_idx > 5)
41ade00f
JB		 2560 return -EINVAL;
2561
2562 if (info->attrs[NL80211_ATTR_MAC])
2563 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2564
e31b8213
JB		 2565 pairwise = !!mac_addr;
2566 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2567 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2568 if (kt >= NUM_NL80211_KEYTYPES)
2569 return -EINVAL;
2570 if (kt != NL80211_KEYTYPE_GROUP &&
2571 kt != NL80211_KEYTYPE_PAIRWISE)
2572 return -EINVAL;
2573 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2574 }
2575
4c476991
JB		 2576 if (!rdev->ops->get_key)
2577 return -EOPNOTSUPP;
41ade00f 2578
fd2120ca 2579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2580 if (!msg)
2581 return -ENOMEM;
41ade00f 2582
15e47304 2583 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2584 NL80211_CMD_NEW_KEY);
4c476991
JB		 2585 if (IS_ERR(hdr))
2586 return PTR_ERR(hdr);
41ade00f
JB		 2587
2588 cookie.msg = msg;
b9454e83 2589 cookie.idx = key_idx;
41ade00f 2590
9360ffd1
DM		 2591 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2592 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2593 goto nla_put_failure;
2594 if (mac_addr &&
2595 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2596 goto nla_put_failure;
41ade00f 2597
e31b8213
JB		 2598 if (pairwise && mac_addr &&
2599 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2600 return -ENOENT;
2601
e35e4d28
HG		 2602 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2603 get_key_callback);
41ade00f
JB		 2604
2605 if (err)
6c95e2a2 2606 goto free_msg;
41ade00f
JB		 2607
2608 if (cookie.error)
2609 goto nla_put_failure;
2610
2611 genlmsg_end(msg, hdr);
4c476991 2612 return genlmsg_reply(msg, info);
41ade00f
JB		 2613
2614 nla_put_failure:
2615 err = -ENOBUFS;
6c95e2a2 2616 free_msg:
41ade00f 2617 nlmsg_free(msg);
41ade00f
JB		 2618 return err;
2619}
2620
2621static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2622{
4c476991 2623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2624 struct key_parse key;
41ade00f 2625 int err;
4c476991 2626 struct net_device *dev = info->user_ptr[1];
41ade00f 2627
b9454e83
JB		 2628 err = nl80211_parse_key(info, &key);
2629 if (err)
2630 return err;
41ade00f 2631
b9454e83 2632 if (key.idx < 0)
41ade00f
JB		 2633 return -EINVAL;
2634
b9454e83
JB		 2635 /* only support setting default key */
2636 if (!key.def && !key.defmgmt)
41ade00f
JB		 2637 return -EINVAL;
2638
dbd2fd65 2639 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2640
dbd2fd65
JB		 2641 if (key.def) {
2642 if (!rdev->ops->set_default_key) {
2643 err = -EOPNOTSUPP;
2644 goto out;
2645 }
41ade00f 2646
dbd2fd65
JB		 2647 err = nl80211_key_allowed(dev->ieee80211_ptr);
2648 if (err)
2649 goto out;
2650
e35e4d28 2651 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2652 key.def_uni, key.def_multi);
2653
2654 if (err)
2655 goto out;
fffd0934 2656
3d23e349 2657#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2658 dev->ieee80211_ptr->wext.default_key = key.idx;
2659#endif
2660 } else {
2661 if (key.def_uni || !key.def_multi) {
2662 err = -EINVAL;
2663 goto out;
2664 }
2665
2666 if (!rdev->ops->set_default_mgmt_key) {
2667 err = -EOPNOTSUPP;
2668 goto out;
2669 }
2670
2671 err = nl80211_key_allowed(dev->ieee80211_ptr);
2672 if (err)
2673 goto out;
2674
e35e4d28 2675 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2676 if (err)
2677 goto out;
2678
2679#ifdef CONFIG_CFG80211_WEXT
2680 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2681#endif
dbd2fd65
JB		 2682 }
2683
2684 out:
fffd0934 2685 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2686
41ade00f
JB		 2687 return err;
2688}
2689
2690static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2691{
4c476991 2692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2693 int err;
4c476991 2694 struct net_device *dev = info->user_ptr[1];
b9454e83 2695 struct key_parse key;
e31b8213 2696 const u8 *mac_addr = NULL;
41ade00f 2697
b9454e83
JB		 2698 err = nl80211_parse_key(info, &key);
2699 if (err)
2700 return err;
41ade00f 2701
b9454e83 2702 if (!key.p.key)
41ade00f
JB		 2703 return -EINVAL;
2704
41ade00f
JB		 2705 if (info->attrs[NL80211_ATTR_MAC])
2706 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2707
e31b8213
JB		 2708 if (key.type == -1) {
2709 if (mac_addr)
2710 key.type = NL80211_KEYTYPE_PAIRWISE;
2711 else
2712 key.type = NL80211_KEYTYPE_GROUP;
2713 }
2714
2715 /* for now */
2716 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2717 key.type != NL80211_KEYTYPE_GROUP)
2718 return -EINVAL;
2719
4c476991
JB		 2720 if (!rdev->ops->add_key)
2721 return -EOPNOTSUPP;
25e47c18 2722
e31b8213
JB		 2723 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2724 key.type == NL80211_KEYTYPE_PAIRWISE,
2725 mac_addr))
4c476991 2726 return -EINVAL;
41ade00f 2727
fffd0934
JB		 2728 wdev_lock(dev->ieee80211_ptr);
2729 err = nl80211_key_allowed(dev->ieee80211_ptr);
2730 if (!err)
e35e4d28
HG		 2731 err = rdev_add_key(rdev, dev, key.idx,
2732 key.type == NL80211_KEYTYPE_PAIRWISE,
2733 mac_addr, &key.p);
fffd0934 2734 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2735
41ade00f
JB		 2736 return err;
2737}
2738
2739static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2740{
4c476991 2741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2742 int err;
4c476991 2743 struct net_device *dev = info->user_ptr[1];
41ade00f 2744 u8 *mac_addr = NULL;
b9454e83 2745 struct key_parse key;
41ade00f 2746
b9454e83
JB		 2747 err = nl80211_parse_key(info, &key);
2748 if (err)
2749 return err;
41ade00f
JB		 2750
2751 if (info->attrs[NL80211_ATTR_MAC])
2752 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2753
e31b8213
JB		 2754 if (key.type == -1) {
2755 if (mac_addr)
2756 key.type = NL80211_KEYTYPE_PAIRWISE;
2757 else
2758 key.type = NL80211_KEYTYPE_GROUP;
2759 }
2760
2761 /* for now */
2762 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2763 key.type != NL80211_KEYTYPE_GROUP)
2764 return -EINVAL;
2765
4c476991
JB		 2766 if (!rdev->ops->del_key)
2767 return -EOPNOTSUPP;
41ade00f 2768
fffd0934
JB		 2769 wdev_lock(dev->ieee80211_ptr);
2770 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2771
2772 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2773 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2774 err = -ENOENT;
2775
fffd0934 2776 if (!err)
e35e4d28
HG		 2777 err = rdev_del_key(rdev, dev, key.idx,
2778 key.type == NL80211_KEYTYPE_PAIRWISE,
2779 mac_addr);
41ade00f 2780
3d23e349 2781#ifdef CONFIG_CFG80211_WEXT
08645126 2782 if (!err) {
b9454e83 2783 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2784 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2785 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2786 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2787 }
2788#endif
fffd0934 2789 wdev_unlock(dev->ieee80211_ptr);
08645126 2790
41ade00f
JB		 2791 return err;
2792}
2793
77765eaf
VT		 2794/* This function returns an error or the number of nested attributes */
2795static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2796{
2797 struct nlattr *attr;
2798 int n_entries = 0, tmp;
2799
2800 nla_for_each_nested(attr, nl_attr, tmp) {
2801 if (nla_len(attr) != ETH_ALEN)
2802 return -EINVAL;
2803
2804 n_entries++;
2805 }
2806
2807 return n_entries;
2808}
2809
2810/*
2811 * This function parses ACL information and allocates memory for ACL data.
2812 * On successful return, the calling function is responsible to free the
2813 * ACL buffer returned by this function.
2814 */
2815static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2816 struct genl_info *info)
2817{
2818 enum nl80211_acl_policy acl_policy;
2819 struct nlattr *attr;
2820 struct cfg80211_acl_data *acl;
2821 int i = 0, n_entries, tmp;
2822
2823 if (!wiphy->max_acl_mac_addrs)
2824 return ERR_PTR(-EOPNOTSUPP);
2825
2826 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2827 return ERR_PTR(-EINVAL);
2828
2829 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2830 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2831 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2832 return ERR_PTR(-EINVAL);
2833
2834 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2835 return ERR_PTR(-EINVAL);
2836
2837 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2838 if (n_entries < 0)
2839 return ERR_PTR(n_entries);
2840
2841 if (n_entries > wiphy->max_acl_mac_addrs)
2842 return ERR_PTR(-ENOTSUPP);
2843
2844 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2845 GFP_KERNEL);
2846 if (!acl)
2847 return ERR_PTR(-ENOMEM);
2848
2849 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2850 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2851 i++;
2852 }
2853
2854 acl->n_acl_entries = n_entries;
2855 acl->acl_policy = acl_policy;
2856
2857 return acl;
2858}
2859
2860static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2861{
2862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2863 struct net_device *dev = info->user_ptr[1];
2864 struct cfg80211_acl_data *acl;
2865 int err;
2866
2867 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2868 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2869 return -EOPNOTSUPP;
2870
2871 if (!dev->ieee80211_ptr->beacon_interval)
2872 return -EINVAL;
2873
2874 acl = parse_acl_data(&rdev->wiphy, info);
2875 if (IS_ERR(acl))
2876 return PTR_ERR(acl);
2877
2878 err = rdev_set_mac_acl(rdev, dev, acl);
2879
2880 kfree(acl);
2881
2882 return err;
2883}
2884
8860020e
JB		 2885static int nl80211_parse_beacon(struct genl_info *info,
2886 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2887{
8860020e 2888 bool haveinfo = false;
ed1b6cc7 2889
9946ecfb
JM		 2890 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2891 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2892 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2893 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2894 return -EINVAL;
2895
8860020e 2896 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2897
ed1b6cc7 2898 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2899 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2900 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2901 if (!bcn->head_len)
2902 return -EINVAL;
2903 haveinfo = true;
ed1b6cc7
JB		 2904 }
2905
2906 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2907 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2908 bcn->tail_len =
ed1b6cc7 2909 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2910 haveinfo = true;
ed1b6cc7
JB		 2911 }
2912
4c476991
JB		 2913 if (!haveinfo)
2914 return -EINVAL;
3b85875a 2915
9946ecfb 2916 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2917 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2918 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2919 }
2920
2921 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2922 bcn->proberesp_ies =
9946ecfb 2923 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2924 bcn->proberesp_ies_len =
9946ecfb
JM		 2925 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2926 }
2927
2928 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2929 bcn->assocresp_ies =
9946ecfb 2930 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2931 bcn->assocresp_ies_len =
9946ecfb
JM		 2932 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2933 }
2934
00f740e1 2935 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2936 bcn->probe_resp =
00f740e1 2937 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2938 bcn->probe_resp_len =
00f740e1
AN		 2939 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2940 }
2941
8860020e
JB		 2942 return 0;
2943}
2944
46c1dd0c
FF		 2945static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2946 struct cfg80211_ap_settings *params)
2947{
2948 struct wireless_dev *wdev;
2949 bool ret = false;
2950
89a54e48 2951 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2952 if (wdev->iftype != NL80211_IFTYPE_AP &&
2953 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2954 continue;
2955
683b6d3b 2956 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2957 continue;
2958
683b6d3b 2959 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2960 ret = true;
2961 break;
2962 }
2963
46c1dd0c
FF		 2964 return ret;
2965}
2966
e39e5b5e
JM		 2967static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2968 enum nl80211_auth_type auth_type,
2969 enum nl80211_commands cmd)
2970{
2971 if (auth_type > NL80211_AUTHTYPE_MAX)
2972 return false;
2973
2974 switch (cmd) {
2975 case NL80211_CMD_AUTHENTICATE:
2976 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2977 auth_type == NL80211_AUTHTYPE_SAE)
2978 return false;
2979 return true;
2980 case NL80211_CMD_CONNECT:
2981 case NL80211_CMD_START_AP:
2982 /* SAE not supported yet */
2983 if (auth_type == NL80211_AUTHTYPE_SAE)
2984 return false;
2985 return true;
2986 default:
2987 return false;
2988 }
2989}
2990
8860020e
JB		 2991static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2992{
2993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2994 struct net_device *dev = info->user_ptr[1];
2995 struct wireless_dev *wdev = dev->ieee80211_ptr;
2996 struct cfg80211_ap_settings params;
2997 int err;
04f39047 2998 u8 radar_detect_width = 0;
8860020e
JB		 2999
3000 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3001 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3002 return -EOPNOTSUPP;
3003
3004 if (!rdev->ops->start_ap)
3005 return -EOPNOTSUPP;
3006
3007 if (wdev->beacon_interval)
3008 return -EALREADY;
3009
3010 memset(&params, 0, sizeof(params));
3011
3012 /* these are required for START_AP */
3013 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3014 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3015 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3016 return -EINVAL;
3017
3018 err = nl80211_parse_beacon(info, &params.beacon);
3019 if (err)
3020 return err;
3021
3022 params.beacon_interval =
3023 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3024 params.dtim_period =
3025 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3026
3027 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3028 if (err)
3029 return err;
3030
3031 /*
3032 * In theory, some of these attributes should be required here
3033 * but since they were not used when the command was originally
3034 * added, keep them optional for old user space programs to let
3035 * them continue to work with drivers that do not need the
3036 * additional information -- drivers must check!
3037 */
3038 if (info->attrs[NL80211_ATTR_SSID]) {
3039 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3040 params.ssid_len =
3041 nla_len(info->attrs[NL80211_ATTR_SSID]);
3042 if (params.ssid_len == 0 ||
3043 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3044 return -EINVAL;
3045 }
3046
3047 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3048 params.hidden_ssid = nla_get_u32(
3049 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3050 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3051 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3052 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3053 return -EINVAL;
3054 }
3055
3056 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3057
3058 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3059 params.auth_type = nla_get_u32(
3060 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3061 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3062 NL80211_CMD_START_AP))
8860020e
JB		 3063 return -EINVAL;
3064 } else
3065 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3066
3067 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3068 NL80211_MAX_NR_CIPHER_SUITES);
3069 if (err)
3070 return err;
3071
1b658f11
VT		 3072 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3073 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3074 return -EOPNOTSUPP;
3075 params.inactivity_timeout = nla_get_u16(
3076 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3077 }
3078
53cabad7
JB		 3079 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3080 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3081 return -EINVAL;
3082 params.p2p_ctwindow =
3083 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3084 if (params.p2p_ctwindow > 127)
3085 return -EINVAL;
3086 if (params.p2p_ctwindow != 0 &&
3087 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3088 return -EINVAL;
3089 }
3090
3091 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3092 u8 tmp;
3093
3094 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3095 return -EINVAL;
3096 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3097 if (tmp > 1)
3098 return -EINVAL;
3099 params.p2p_opp_ps = tmp;
3100 if (params.p2p_opp_ps != 0 &&
3101 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3102 return -EINVAL;
3103 }
3104
aa430da4 3105 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3106 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3107 if (err)
3108 return err;
3109 } else if (wdev->preset_chandef.chan) {
3110 params.chandef = wdev->preset_chandef;
46c1dd0c 3111 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3112 return -EINVAL;
3113
683b6d3b 3114 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3115 return -EINVAL;
3116
04f39047
SW		 3117 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3118 if (err < 0)
3119 return err;
3120 if (err) {
3121 radar_detect_width = BIT(params.chandef.width);
3122 params.radar_required = true;
3123 }
3124
04f39047
SW		 3125 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3126 params.chandef.chan,
3127 CHAN_MODE_SHARED,
3128 radar_detect_width);
e4e32459
MK		 3129 if (err)
3130 return err;
3131
77765eaf
VT		 3132 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3133 params.acl = parse_acl_data(&rdev->wiphy, info);
3134 if (IS_ERR(params.acl))
3135 return PTR_ERR(params.acl);
3136 }
3137
e35e4d28 3138 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3139 if (!err) {
683b6d3b 3140 wdev->preset_chandef = params.chandef;
8860020e 3141 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3142 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3143 wdev->ssid_len = params.ssid_len;
3144 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3145 }
77765eaf
VT		 3146
3147 kfree(params.acl);
3148
56d1893d 3149 return err;
ed1b6cc7
JB		 3150}
3151
8860020e
JB		 3152static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3153{
3154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3155 struct net_device *dev = info->user_ptr[1];
3156 struct wireless_dev *wdev = dev->ieee80211_ptr;
3157 struct cfg80211_beacon_data params;
3158 int err;
3159
3160 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3161 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3162 return -EOPNOTSUPP;
3163
3164 if (!rdev->ops->change_beacon)
3165 return -EOPNOTSUPP;
3166
3167 if (!wdev->beacon_interval)
3168 return -EINVAL;
3169
3170 err = nl80211_parse_beacon(info, &params);
3171 if (err)
3172 return err;
3173
e35e4d28 3174 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3175}
3176
3177static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3178{
4c476991
JB		 3179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3180 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3181
60771780 3182 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3183}
3184
5727ef1b
JB		 3185static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3186 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3187 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3188 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3189 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3190 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3191 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3192};
3193
eccb8e8f 3194static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3195 enum nl80211_iftype iftype,
eccb8e8f 3196 struct station_parameters *params)
5727ef1b
JB		 3197{
3198 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3199 struct nlattr *nla;
5727ef1b
JB		 3200 int flag;
3201
eccb8e8f
JB		 3202 /*
3203 * Try parsing the new attribute first so userspace
3204 * can specify both for older kernels.
3205 */
3206 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3207 if (nla) {
3208 struct nl80211_sta_flag_update *sta_flags;
3209
3210 sta_flags = nla_data(nla);
3211 params->sta_flags_mask = sta_flags->mask;
3212 params->sta_flags_set = sta_flags->set;
77ee7c89 3213 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3214 if ((params->sta_flags_mask |
3215 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3216 return -EINVAL;
3217 return 0;
3218 }
3219
3220 /* if present, parse the old attribute */
5727ef1b 3221
eccb8e8f 3222 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3223 if (!nla)
3224 return 0;
3225
3226 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3227 nla, sta_flags_policy))
3228 return -EINVAL;
3229
bdd3ae3d
JB		 3230 /*
3231 * Only allow certain flags for interface types so that
3232 * other attributes are silently ignored. Remember that
3233 * this is backward compatibility code with old userspace
3234 * and shouldn't be hit in other cases anyway.
3235 */
3236 switch (iftype) {
3237 case NL80211_IFTYPE_AP:
3238 case NL80211_IFTYPE_AP_VLAN:
3239 case NL80211_IFTYPE_P2P_GO:
3240 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3241 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3242 BIT(NL80211_STA_FLAG_WME) |
3243 BIT(NL80211_STA_FLAG_MFP);
3244 break;
3245 case NL80211_IFTYPE_P2P_CLIENT:
3246 case NL80211_IFTYPE_STATION:
3247 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3248 BIT(NL80211_STA_FLAG_TDLS_PEER);
3249 break;
3250 case NL80211_IFTYPE_MESH_POINT:
3251 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3252 BIT(NL80211_STA_FLAG_MFP) |
3253 BIT(NL80211_STA_FLAG_AUTHORIZED);
3254 default:
3255 return -EINVAL;
3256 }
5727ef1b 3257
3383b5a6
JB		 3258 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3259 if (flags[flag]) {
eccb8e8f 3260 params->sta_flags_set |= (1<<flag);
5727ef1b 3261
3383b5a6
JB		 3262 /* no longer support new API additions in old API */
3263 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3264 return -EINVAL;
3265 }
3266 }
3267
5727ef1b
JB		 3268 return 0;
3269}
3270
c8dcfd8a
FF		 3271static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3272 int attr)
3273{
3274 struct nlattr *rate;
8eb41c8d
VK		 3275 u32 bitrate;
3276 u16 bitrate_compat;
c8dcfd8a
FF		 3277
3278 rate = nla_nest_start(msg, attr);
3279 if (!rate)
db9c64cf 3280 return false;
c8dcfd8a
FF		 3281
3282 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3283 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3284 /* report 16-bit bitrate only if we can */
3285 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3286 if (bitrate > 0 &&
3287 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3288 return false;
3289 if (bitrate_compat > 0 &&
3290 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3291 return false;
3292
3293 if (info->flags & RATE_INFO_FLAGS_MCS) {
3294 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3295 return false;
3296 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3297 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3298 return false;
3299 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3300 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3301 return false;
3302 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3303 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3304 return false;
3305 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3306 return false;
3307 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3308 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3309 return false;
3310 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3311 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3312 return false;
3313 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3314 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3315 return false;
3316 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3317 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3318 return false;
3319 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3320 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3321 return false;
3322 }
c8dcfd8a
FF		 3323
3324 nla_nest_end(msg, rate);
3325 return true;
c8dcfd8a
FF		 3326}
3327
119363c7
FF		 3328static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3329 int id)
3330{
3331 void *attr;
3332 int i = 0;
3333
3334 if (!mask)
3335 return true;
3336
3337 attr = nla_nest_start(msg, id);
3338 if (!attr)
3339 return false;
3340
3341 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3342 if (!(mask & BIT(i)))
3343 continue;
3344
3345 if (nla_put_u8(msg, i, signal[i]))
3346 return false;
3347 }
3348
3349 nla_nest_end(msg, attr);
3350
3351 return true;
3352}
3353
15e47304 3354static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3355 int flags,
3356 struct cfg80211_registered_device *rdev,
3357 struct net_device *dev,
98b62183 3358 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3359{
3360 void *hdr;
f4263c98 3361 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3362
15e47304 3363 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3364 if (!hdr)
3365 return -1;
3366
9360ffd1
DM		 3367 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3369 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3370 goto nla_put_failure;
f5ea9120 3371
2ec600d6
LCC		 3372 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3373 if (!sinfoattr)
fd5b74dc 3374 goto nla_put_failure;
9360ffd1
DM		 3375 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3376 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3377 sinfo->connected_time))
3378 goto nla_put_failure;
3379 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3380 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3381 sinfo->inactive_time))
3382 goto nla_put_failure;
42745e03
VK		 3383 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3384 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3385 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3386 (u32)sinfo->rx_bytes))
9360ffd1 3387 goto nla_put_failure;
42745e03 3388 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3389 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3390 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3391 (u32)sinfo->tx_bytes))
3392 goto nla_put_failure;
3393 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3394 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3395 sinfo->rx_bytes))
3396 goto nla_put_failure;
3397 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3398 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3399 sinfo->tx_bytes))
3400 goto nla_put_failure;
3401 if ((sinfo->filled & STATION_INFO_LLID) &&
3402 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3403 goto nla_put_failure;
3404 if ((sinfo->filled & STATION_INFO_PLID) &&
3405 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3406 goto nla_put_failure;
3407 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3408 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3409 sinfo->plink_state))
3410 goto nla_put_failure;
66266b3a
JL		 3411 switch (rdev->wiphy.signal_type) {
3412 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3413 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3414 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3415 sinfo->signal))
3416 goto nla_put_failure;
3417 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3418 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3419 sinfo->signal_avg))
3420 goto nla_put_failure;
66266b3a
JL		 3421 break;
3422 default:
3423 break;
3424 }
119363c7
FF		 3425 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3426 if (!nl80211_put_signal(msg, sinfo->chains,
3427 sinfo->chain_signal,
3428 NL80211_STA_INFO_CHAIN_SIGNAL))
3429 goto nla_put_failure;
3430 }
3431 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3432 if (!nl80211_put_signal(msg, sinfo->chains,
3433 sinfo->chain_signal_avg,
3434 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3435 goto nla_put_failure;
3436 }
420e7fab 3437 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3438 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3439 NL80211_STA_INFO_TX_BITRATE))
3440 goto nla_put_failure;
3441 }
3442 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3443 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3444 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3445 goto nla_put_failure;
420e7fab 3446 }
9360ffd1
DM		 3447 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3448 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3449 sinfo->rx_packets))
3450 goto nla_put_failure;
3451 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3452 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3453 sinfo->tx_packets))
3454 goto nla_put_failure;
3455 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3456 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3457 sinfo->tx_retries))
3458 goto nla_put_failure;
3459 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3460 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3461 sinfo->tx_failed))
3462 goto nla_put_failure;
3463 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3464 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3465 sinfo->beacon_loss_count))
3466 goto nla_put_failure;
3b1c5a53
MP		 3467 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3468 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3469 sinfo->local_pm))
3470 goto nla_put_failure;
3471 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3472 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3473 sinfo->peer_pm))
3474 goto nla_put_failure;
3475 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3476 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3477 sinfo->nonpeer_pm))
3478 goto nla_put_failure;
f4263c98
PS		 3479 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3480 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3481 if (!bss_param)
3482 goto nla_put_failure;
3483
9360ffd1
DM		 3484 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3485 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3486 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3487 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3488 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3489 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3490 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3491 sinfo->bss_param.dtim_period) ||
3492 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3493 sinfo->bss_param.beacon_interval))
3494 goto nla_put_failure;
f4263c98
PS		 3495
3496 nla_nest_end(msg, bss_param);
3497 }
9360ffd1
DM		 3498 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3499 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3500 sizeof(struct nl80211_sta_flag_update),
3501 &sinfo->sta_flags))
3502 goto nla_put_failure;
7eab0f64
JL		 3503 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3504 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3505 sinfo->t_offset))
3506 goto nla_put_failure;
2ec600d6 3507 nla_nest_end(msg, sinfoattr);
fd5b74dc 3508
9360ffd1
DM		 3509 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3510 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3511 sinfo->assoc_req_ies))
3512 goto nla_put_failure;
50d3dfb7 3513
fd5b74dc
JB		 3514 return genlmsg_end(msg, hdr);
3515
3516 nla_put_failure:
bc3ed28c
TG		 3517 genlmsg_cancel(msg, hdr);
3518 return -EMSGSIZE;
fd5b74dc
JB		 3519}
3520
2ec600d6 3521static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3522 struct netlink_callback *cb)
2ec600d6 3523{
2ec600d6
LCC		 3524 struct station_info sinfo;
3525 struct cfg80211_registered_device *dev;
97990a06 3526 struct wireless_dev *wdev;
2ec600d6 3527 u8 mac_addr[ETH_ALEN];
97990a06 3528 int sta_idx = cb->args[2];
2ec600d6 3529 int err;
2ec600d6 3530
97990a06 3531 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3532 if (err)
3533 return err;
bba95fef 3534
97990a06
JB		 3535 if (!wdev->netdev) {
3536 err = -EINVAL;
3537 goto out_err;
3538 }
3539
bba95fef 3540 if (!dev->ops->dump_station) {
eec60b03 3541 err = -EOPNOTSUPP;
bba95fef
JB		 3542 goto out_err;
3543 }
3544
bba95fef 3545 while (1) {
f612cedf 3546 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3547 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3548 mac_addr, &sinfo);
bba95fef
JB		 3549 if (err == -ENOENT)
3550 break;
3551 if (err)
3b85875a 3552 goto out_err;
bba95fef
JB		 3553
3554 if (nl80211_send_station(skb,
15e47304 3555 NETLINK_CB(cb->skb).portid,
bba95fef 3556 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3557 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3558 &sinfo) < 0)
3559 goto out;
3560
3561 sta_idx++;
3562 }
3563
3564
3565 out:
97990a06 3566 cb->args[2] = sta_idx;
bba95fef 3567 err = skb->len;
bba95fef 3568 out_err:
97990a06 3569 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3570
3571 return err;
2ec600d6 3572}
fd5b74dc 3573
5727ef1b
JB		 3574static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3575{
4c476991
JB		 3576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3577 struct net_device *dev = info->user_ptr[1];
2ec600d6 3578 struct station_info sinfo;
fd5b74dc
JB		 3579 struct sk_buff *msg;
3580 u8 *mac_addr = NULL;
4c476991 3581 int err;
fd5b74dc 3582
2ec600d6 3583 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3584
3585 if (!info->attrs[NL80211_ATTR_MAC])
3586 return -EINVAL;
3587
3588 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3589
4c476991
JB		 3590 if (!rdev->ops->get_station)
3591 return -EOPNOTSUPP;
3b85875a 3592
e35e4d28 3593 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3594 if (err)
4c476991 3595 return err;
2ec600d6 3596
fd2120ca 3597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3598 if (!msg)
4c476991 3599 return -ENOMEM;
fd5b74dc 3600
15e47304 3601 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3602 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3603 nlmsg_free(msg);
3604 return -ENOBUFS;
3605 }
3b85875a 3606
4c476991 3607 return genlmsg_reply(msg, info);
5727ef1b
JB		 3608}
3609
77ee7c89
JB		 3610int cfg80211_check_station_change(struct wiphy *wiphy,
3611 struct station_parameters *params,
3612 enum cfg80211_station_type statype)
3613{
3614 if (params->listen_interval != -1)
3615 return -EINVAL;
3616 if (params->aid)
3617 return -EINVAL;
3618
3619 /* When you run into this, adjust the code below for the new flag */
3620 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3621
3622 switch (statype) {
eef941e6
TP		 3623 case CFG80211_STA_MESH_PEER_KERNEL:
3624 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3625 /*
3626 * No ignoring the TDLS flag here -- the userspace mesh
3627 * code doesn't have the bug of including TDLS in the
3628 * mask everywhere.
3629 */
3630 if (params->sta_flags_mask &
3631 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3632 BIT(NL80211_STA_FLAG_MFP) |
3633 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3634 return -EINVAL;
3635 break;
3636 case CFG80211_STA_TDLS_PEER_SETUP:
3637 case CFG80211_STA_TDLS_PEER_ACTIVE:
3638 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3639 return -EINVAL;
3640 /* ignore since it can't change */
3641 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3642 break;
3643 default:
3644 /* disallow mesh-specific things */
3645 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3646 return -EINVAL;
3647 if (params->local_pm)
3648 return -EINVAL;
3649 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3650 return -EINVAL;
3651 }
3652
3653 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3654 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3655 /* TDLS can't be set, ... */
3656 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3657 return -EINVAL;
3658 /*
3659 * ... but don't bother the driver with it. This works around
3660 * a hostapd/wpa_supplicant issue -- it always includes the
3661 * TLDS_PEER flag in the mask even for AP mode.
3662 */
3663 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3664 }
3665
3666 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3667 /* reject other things that can't change */
3668 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3669 return -EINVAL;
3670 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3671 return -EINVAL;
3672 if (params->supported_rates)
3673 return -EINVAL;
3674 if (params->ext_capab || params->ht_capa || params->vht_capa)
3675 return -EINVAL;
3676 }
3677
3678 if (statype != CFG80211_STA_AP_CLIENT) {
3679 if (params->vlan)
3680 return -EINVAL;
3681 }
3682
3683 switch (statype) {
3684 case CFG80211_STA_AP_MLME_CLIENT:
3685 /* Use this only for authorizing/unauthorizing a station */
3686 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3687 return -EOPNOTSUPP;
3688 break;
3689 case CFG80211_STA_AP_CLIENT:
3690 /* accept only the listed bits */
3691 if (params->sta_flags_mask &
3692 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3693 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3694 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3695 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3696 BIT(NL80211_STA_FLAG_WME) |
3697 BIT(NL80211_STA_FLAG_MFP)))
3698 return -EINVAL;
3699
3700 /* but authenticated/associated only if driver handles it */
3701 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3702 params->sta_flags_mask &
3703 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3704 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3705 return -EINVAL;
3706 break;
3707 case CFG80211_STA_IBSS:
3708 case CFG80211_STA_AP_STA:
3709 /* reject any changes other than AUTHORIZED */
3710 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3711 return -EINVAL;
3712 break;
3713 case CFG80211_STA_TDLS_PEER_SETUP:
3714 /* reject any changes other than AUTHORIZED or WME */
3715 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3716 BIT(NL80211_STA_FLAG_WME)))
3717 return -EINVAL;
3718 /* force (at least) rates when authorizing */
3719 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3720 !params->supported_rates)
3721 return -EINVAL;
3722 break;
3723 case CFG80211_STA_TDLS_PEER_ACTIVE:
3724 /* reject any changes */
3725 return -EINVAL;
eef941e6 3726 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3727 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3728 return -EINVAL;
3729 break;
eef941e6 3730 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3731 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3732 return -EINVAL;
3733 break;
3734 }
3735
3736 return 0;
3737}
3738EXPORT_SYMBOL(cfg80211_check_station_change);
3739
5727ef1b 3740/*
c258d2de 3741 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3742 */
80b99899
JB		 3743static struct net_device *get_vlan(struct genl_info *info,
3744 struct cfg80211_registered_device *rdev)
5727ef1b 3745{
463d0183 3746 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3747 struct net_device *v;
3748 int ret;
3749
3750 if (!vlanattr)
3751 return NULL;
3752
3753 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3754 if (!v)
3755 return ERR_PTR(-ENODEV);
3756
3757 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3758 ret = -EINVAL;
3759 goto error;
5727ef1b 3760 }
80b99899 3761
77ee7c89
JB		 3762 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3763 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3764 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3765 ret = -EINVAL;
3766 goto error;
3767 }
3768
80b99899
JB		 3769 if (!netif_running(v)) {
3770 ret = -ENETDOWN;
3771 goto error;
3772 }
3773
3774 return v;
3775 error:
3776 dev_put(v);
3777 return ERR_PTR(ret);
5727ef1b
JB		 3778}
3779
df881293
JM		 3780static struct nla_policy
3781nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3782 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3783 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3784};
3785
ff276691
JB		 3786static int nl80211_parse_sta_wme(struct genl_info *info,
3787 struct station_parameters *params)
df881293 3788{
df881293
JM		 3789 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3790 struct nlattr *nla;
3791 int err;
3792
df881293
JM		 3793 /* parse WME attributes if present */
3794 if (!info->attrs[NL80211_ATTR_STA_WME])
3795 return 0;
3796
3797 nla = info->attrs[NL80211_ATTR_STA_WME];
3798 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3799 nl80211_sta_wme_policy);
3800 if (err)
3801 return err;
3802
3803 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3804 params->uapsd_queues = nla_get_u8(
3805 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3806 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3807 return -EINVAL;
3808
3809 if (tb[NL80211_STA_WME_MAX_SP])
3810 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3811
3812 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3813 return -EINVAL;
3814
3815 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3816
3817 return 0;
3818}
3819
ff276691
JB		 3820static int nl80211_set_station_tdls(struct genl_info *info,
3821 struct station_parameters *params)
3822{
3823 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3824 if (info->attrs[NL80211_ATTR_PEER_AID])
3825 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3826 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3827 params->ht_capa =
3828 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3829 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3830 params->vht_capa =
3831 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3832
3833 return nl80211_parse_sta_wme(info, params);
3834}
3835
5727ef1b
JB		 3836static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3837{
4c476991 3838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3839 struct net_device *dev = info->user_ptr[1];
5727ef1b 3840 struct station_parameters params;
77ee7c89
JB		 3841 u8 *mac_addr;
3842 int err;
5727ef1b
JB		 3843
3844 memset(&params, 0, sizeof(params));
3845
3846 params.listen_interval = -1;
3847
77ee7c89
JB		 3848 if (!rdev->ops->change_station)
3849 return -EOPNOTSUPP;
3850
5727ef1b
JB		 3851 if (info->attrs[NL80211_ATTR_STA_AID])
3852 return -EINVAL;
3853
3854 if (!info->attrs[NL80211_ATTR_MAC])
3855 return -EINVAL;
3856
3857 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3858
3859 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3860 params.supported_rates =
3861 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3862 params.supported_rates_len =
3863 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3864 }
3865
9d62a986
JM		 3866 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3867 params.capability =
3868 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3869 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3870 }
3871
3872 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3873 params.ext_capab =
3874 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3875 params.ext_capab_len =
3876 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3877 }
3878
df881293 3879 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3880 return -EINVAL;
36aedc90 3881
bdd3ae3d 3882 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3883 return -EINVAL;
3884
f8bacc21 3885 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3886 params.plink_action =
f8bacc21
JB		 3887 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3888 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3889 return -EINVAL;
3890 }
2ec600d6 3891
f8bacc21 3892 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3893 params.plink_state =
f8bacc21
JB		 3894 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3895 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3896 return -EINVAL;
3897 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3898 }
9c3990aa 3899
3b1c5a53
MP		 3900 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3901 enum nl80211_mesh_power_mode pm = nla_get_u32(
3902 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3903
3904 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3905 pm > NL80211_MESH_POWER_MAX)
3906 return -EINVAL;
3907
3908 params.local_pm = pm;
3909 }
3910
77ee7c89
JB		 3911 /* Include parameters for TDLS peer (will check later) */
3912 err = nl80211_set_station_tdls(info, &params);
3913 if (err)
3914 return err;
3915
3916 params.vlan = get_vlan(info, rdev);
3917 if (IS_ERR(params.vlan))
3918 return PTR_ERR(params.vlan);
3919
a97f4424
JB		 3920 switch (dev->ieee80211_ptr->iftype) {
3921 case NL80211_IFTYPE_AP:
3922 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3923 case NL80211_IFTYPE_P2P_GO:
074ac8df 3924 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3925 case NL80211_IFTYPE_STATION:
267335d6 3926 case NL80211_IFTYPE_ADHOC:
a97f4424 3927 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3928 break;
3929 default:
77ee7c89
JB		 3930 err = -EOPNOTSUPP;
3931 goto out_put_vlan;
034d655e
JB		 3932 }
3933
77ee7c89 3934 /* driver will call cfg80211_check_station_change() */
e35e4d28 3935 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3936
77ee7c89 3937 out_put_vlan:
5727ef1b
JB		 3938 if (params.vlan)
3939 dev_put(params.vlan);
3b85875a 3940
5727ef1b
JB		 3941 return err;
3942}
3943
3944static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3945{
4c476991 3946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3947 int err;
4c476991 3948 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3949 struct station_parameters params;
3950 u8 *mac_addr = NULL;
3951
3952 memset(&params, 0, sizeof(params));
3953
984c311b
JB		 3954 if (!rdev->ops->add_station)
3955 return -EOPNOTSUPP;
3956
5727ef1b
JB		 3957 if (!info->attrs[NL80211_ATTR_MAC])
3958 return -EINVAL;
3959
5727ef1b
JB		 3960 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3961 return -EINVAL;
3962
3963 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3964 return -EINVAL;
3965
5e4b6f56
JM		 3966 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3967 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 3968 return -EINVAL;
3969
5727ef1b
JB		 3970 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3971 params.supported_rates =
3972 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3973 params.supported_rates_len =
3974 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3975 params.listen_interval =
3976 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3977
5e4b6f56
JM		 3978 if (info->attrs[NL80211_ATTR_STA_AID])
3979 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3980 else
3981 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
0e956c13
TLSC		 3982 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3983 return -EINVAL;
51b50fbe 3984
9d62a986
JM		 3985 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3986 params.capability =
3987 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3988 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3989 }
3990
3991 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3992 params.ext_capab =
3993 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3994 params.ext_capab_len =
3995 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3996 }
3997
36aedc90
JM		 3998 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3999 params.ht_capa =
4000 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4001
f461be3e
MP		 4002 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4003 params.vht_capa =
4004 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4005
f8bacc21 4006 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4007 params.plink_action =
f8bacc21
JB		 4008 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4009 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4010 return -EINVAL;
4011 }
96b78dff 4012
ff276691
JB		 4013 err = nl80211_parse_sta_wme(info, &params);
4014 if (err)
4015 return err;
bdd90d5e 4016
bdd3ae3d 4017 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4018 return -EINVAL;
4019
77ee7c89
JB		 4020 /* When you run into this, adjust the code below for the new flag */
4021 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4022
bdd90d5e
JB		 4023 switch (dev->ieee80211_ptr->iftype) {
4024 case NL80211_IFTYPE_AP:
4025 case NL80211_IFTYPE_AP_VLAN:
4026 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4027 /* ignore WME attributes if iface/sta is not capable */
4028 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4029 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4030 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4031
bdd90d5e
JB		 4032 /* TDLS peers cannot be added */
4033 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4034 return -EINVAL;
bdd90d5e
JB		 4035 /* but don't bother the driver with it */
4036 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4037
d582cffb
JB		 4038 /* allow authenticated/associated only if driver handles it */
4039 if (!(rdev->wiphy.features &
4040 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4041 params.sta_flags_mask &
4042 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4043 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4044 return -EINVAL;
4045
bdd90d5e
JB		 4046 /* must be last in here for error handling */
4047 params.vlan = get_vlan(info, rdev);
4048 if (IS_ERR(params.vlan))
4049 return PTR_ERR(params.vlan);
4050 break;
4051 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4052 /* ignore uAPSD data */
4053 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4054
d582cffb
JB		 4055 /* associated is disallowed */
4056 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4057 return -EINVAL;
bdd90d5e
JB		 4058 /* TDLS peers cannot be added */
4059 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4060 return -EINVAL;
4061 break;
4062 case NL80211_IFTYPE_STATION:
93d08f0b 4063 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4064 /* ignore uAPSD data */
4065 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4066
77ee7c89
JB		 4067 /* these are disallowed */
4068 if (params.sta_flags_mask &
4069 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4070 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4071 return -EINVAL;
bdd90d5e
JB		 4072 /* Only TDLS peers can be added */
4073 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4074 return -EINVAL;
4075 /* Can only add if TDLS ... */
4076 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4077 return -EOPNOTSUPP;
4078 /* ... with external setup is supported */
4079 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4080 return -EOPNOTSUPP;
77ee7c89
JB		 4081 /*
4082 * Older wpa_supplicant versions always mark the TDLS peer
4083 * as authorized, but it shouldn't yet be.
4084 */
4085 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4086 break;
4087 default:
4088 return -EOPNOTSUPP;
c75786c9
EP		 4089 }
4090
bdd90d5e 4091 /* be aware of params.vlan when changing code here */
5727ef1b 4092
e35e4d28 4093 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4094
5727ef1b
JB		 4095 if (params.vlan)
4096 dev_put(params.vlan);
5727ef1b
JB		 4097 return err;
4098}
4099
4100static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4101{
4c476991
JB		 4102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4103 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4104 u8 *mac_addr = NULL;
4105
4106 if (info->attrs[NL80211_ATTR_MAC])
4107 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4108
e80cf853 4109 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4110 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4111 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4112 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4113 return -EINVAL;
5727ef1b 4114
4c476991
JB		 4115 if (!rdev->ops->del_station)
4116 return -EOPNOTSUPP;
3b85875a 4117
e35e4d28 4118 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4119}
4120
15e47304 4121static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4122 int flags, struct net_device *dev,
4123 u8 *dst, u8 *next_hop,
4124 struct mpath_info *pinfo)
4125{
4126 void *hdr;
4127 struct nlattr *pinfoattr;
4128
15e47304 4129 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4130 if (!hdr)
4131 return -1;
4132
9360ffd1
DM		 4133 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4134 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4135 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4136 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4137 goto nla_put_failure;
f5ea9120 4138
2ec600d6
LCC		 4139 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4140 if (!pinfoattr)
4141 goto nla_put_failure;
9360ffd1
DM		 4142 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4143 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4144 pinfo->frame_qlen))
4145 goto nla_put_failure;
4146 if (((pinfo->filled & MPATH_INFO_SN) &&
4147 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4148 ((pinfo->filled & MPATH_INFO_METRIC) &&
4149 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4150 pinfo->metric)) ||
4151 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4152 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4153 pinfo->exptime)) ||
4154 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4155 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4156 pinfo->flags)) ||
4157 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4158 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4159 pinfo->discovery_timeout)) ||
4160 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4161 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4162 pinfo->discovery_retries)))
4163 goto nla_put_failure;
2ec600d6
LCC		 4164
4165 nla_nest_end(msg, pinfoattr);
4166
4167 return genlmsg_end(msg, hdr);
4168
4169 nla_put_failure:
bc3ed28c
TG		 4170 genlmsg_cancel(msg, hdr);
4171 return -EMSGSIZE;
2ec600d6
LCC		 4172}
4173
4174static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4175 struct netlink_callback *cb)
2ec600d6 4176{
2ec600d6
LCC		 4177 struct mpath_info pinfo;
4178 struct cfg80211_registered_device *dev;
97990a06 4179 struct wireless_dev *wdev;
2ec600d6
LCC		 4180 u8 dst[ETH_ALEN];
4181 u8 next_hop[ETH_ALEN];
97990a06 4182 int path_idx = cb->args[2];
2ec600d6 4183 int err;
2ec600d6 4184
97990a06 4185 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4186 if (err)
4187 return err;
bba95fef
JB		 4188
4189 if (!dev->ops->dump_mpath) {
eec60b03 4190 err = -EOPNOTSUPP;
bba95fef
JB		 4191 goto out_err;
4192 }
4193
97990a06 4194 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4195 err = -EOPNOTSUPP;
0448b5fc 4196 goto out_err;
eec60b03
JM		 4197 }
4198
bba95fef 4199 while (1) {
97990a06
JB		 4200 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4201 next_hop, &pinfo);
bba95fef 4202 if (err == -ENOENT)
2ec600d6 4203 break;
bba95fef 4204 if (err)
3b85875a 4205 goto out_err;
2ec600d6 4206
15e47304 4207 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4208 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4209 wdev->netdev, dst, next_hop,
bba95fef
JB		 4210 &pinfo) < 0)
4211 goto out;
2ec600d6 4212
bba95fef 4213 path_idx++;
2ec600d6 4214 }
2ec600d6 4215
2ec600d6 4216
bba95fef 4217 out:
97990a06 4218 cb->args[2] = path_idx;
bba95fef 4219 err = skb->len;
bba95fef 4220 out_err:
97990a06 4221 nl80211_finish_wdev_dump(dev);
bba95fef 4222 return err;
2ec600d6
LCC		 4223}
4224
4225static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4226{
4c476991 4227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4228 int err;
4c476991 4229 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4230 struct mpath_info pinfo;
4231 struct sk_buff *msg;
4232 u8 *dst = NULL;
4233 u8 next_hop[ETH_ALEN];
4234
4235 memset(&pinfo, 0, sizeof(pinfo));
4236
4237 if (!info->attrs[NL80211_ATTR_MAC])
4238 return -EINVAL;
4239
4240 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4241
4c476991
JB		 4242 if (!rdev->ops->get_mpath)
4243 return -EOPNOTSUPP;
2ec600d6 4244
4c476991
JB		 4245 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4246 return -EOPNOTSUPP;
eec60b03 4247
e35e4d28 4248 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4249 if (err)
4c476991 4250 return err;
2ec600d6 4251
fd2120ca 4252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4253 if (!msg)
4c476991 4254 return -ENOMEM;
2ec600d6 4255
15e47304 4256 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4257 dev, dst, next_hop, &pinfo) < 0) {
4258 nlmsg_free(msg);
4259 return -ENOBUFS;
4260 }
3b85875a 4261
4c476991 4262 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4263}
4264
4265static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4266{
4c476991
JB		 4267 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4268 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4269 u8 *dst = NULL;
4270 u8 *next_hop = NULL;
4271
4272 if (!info->attrs[NL80211_ATTR_MAC])
4273 return -EINVAL;
4274
4275 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4276 return -EINVAL;
4277
4278 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4279 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4280
4c476991
JB		 4281 if (!rdev->ops->change_mpath)
4282 return -EOPNOTSUPP;
35a8efe1 4283
4c476991
JB		 4284 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4285 return -EOPNOTSUPP;
2ec600d6 4286
e35e4d28 4287 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4288}
4c476991 4289
2ec600d6
LCC		 4290static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4291{
4c476991
JB		 4292 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4293 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4294 u8 *dst = NULL;
4295 u8 *next_hop = NULL;
4296
4297 if (!info->attrs[NL80211_ATTR_MAC])
4298 return -EINVAL;
4299
4300 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4301 return -EINVAL;
4302
4303 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4304 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4305
4c476991
JB		 4306 if (!rdev->ops->add_mpath)
4307 return -EOPNOTSUPP;
35a8efe1 4308
4c476991
JB		 4309 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4310 return -EOPNOTSUPP;
2ec600d6 4311
e35e4d28 4312 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4313}
4314
4315static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4316{
4c476991
JB		 4317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4318 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4319 u8 *dst = NULL;
4320
4321 if (info->attrs[NL80211_ATTR_MAC])
4322 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4323
4c476991
JB		 4324 if (!rdev->ops->del_mpath)
4325 return -EOPNOTSUPP;
3b85875a 4326
e35e4d28 4327 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4328}
4329
9f1ba906
JM		 4330static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4331{
4c476991
JB		 4332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4333 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4334 struct bss_parameters params;
4335
4336 memset(&params, 0, sizeof(params));
4337 /* default to not changing parameters */
4338 params.use_cts_prot = -1;
4339 params.use_short_preamble = -1;
4340 params.use_short_slot_time = -1;
fd8aaaf3 4341 params.ap_isolate = -1;
50b12f59 4342 params.ht_opmode = -1;
53cabad7
JB		 4343 params.p2p_ctwindow = -1;
4344 params.p2p_opp_ps = -1;
9f1ba906
JM		 4345
4346 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4347 params.use_cts_prot =
4348 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4349 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4350 params.use_short_preamble =
4351 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4352 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4353 params.use_short_slot_time =
4354 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4355 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4356 params.basic_rates =
4357 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4358 params.basic_rates_len =
4359 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4360 }
fd8aaaf3
FF		 4361 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4362 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4363 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4364 params.ht_opmode =
4365 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4366
53cabad7
JB		 4367 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4369 return -EINVAL;
4370 params.p2p_ctwindow =
4371 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4372 if (params.p2p_ctwindow < 0)
4373 return -EINVAL;
4374 if (params.p2p_ctwindow != 0 &&
4375 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4376 return -EINVAL;
4377 }
4378
4379 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4380 u8 tmp;
4381
4382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4383 return -EINVAL;
4384 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4385 if (tmp > 1)
4386 return -EINVAL;
4387 params.p2p_opp_ps = tmp;
4388 if (params.p2p_opp_ps &&
4389 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4390 return -EINVAL;
4391 }
4392
4c476991
JB		 4393 if (!rdev->ops->change_bss)
4394 return -EOPNOTSUPP;
9f1ba906 4395
074ac8df 4396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4397 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4398 return -EOPNOTSUPP;
3b85875a 4399
e35e4d28 4400 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4401}
4402
b54452b0 4403static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4404 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4405 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4406 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4407 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4408 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4409 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4410};
4411
4412static int parse_reg_rule(struct nlattr *tb[],
4413 struct ieee80211_reg_rule *reg_rule)
4414{
4415 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4416 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4417
4418 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4419 return -EINVAL;
4420 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4421 return -EINVAL;
4422 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4423 return -EINVAL;
4424 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4425 return -EINVAL;
4426 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4427 return -EINVAL;
4428
4429 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4430
4431 freq_range->start_freq_khz =
4432 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4433 freq_range->end_freq_khz =
4434 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4435 freq_range->max_bandwidth_khz =
4436 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4437
4438 power_rule->max_eirp =
4439 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4440
4441 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4442 power_rule->max_antenna_gain =
4443 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4444
4445 return 0;
4446}
4447
4448static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4449{
4450 int r;
4451 char *data = NULL;
57b5ce07 4452 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4453
80778f18
LR		 4454 /*
4455 * You should only get this when cfg80211 hasn't yet initialized
4456 * completely when built-in to the kernel right between the time
4457 * window between nl80211_init() and regulatory_init(), if that is
4458 * even possible.
4459 */
458f4f9e 4460 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4461 return -EINPROGRESS;
80778f18 4462
fe33eb39
LR		 4463 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4464 return -EINVAL;
b2e1b302
LR		 4465
4466 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4467
57b5ce07
LR		 4468 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4469 user_reg_hint_type =
4470 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4471 else
4472 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4473
4474 switch (user_reg_hint_type) {
4475 case NL80211_USER_REG_HINT_USER:
4476 case NL80211_USER_REG_HINT_CELL_BASE:
4477 break;
4478 default:
4479 return -EINVAL;
4480 }
4481
4482 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4483
b2e1b302
LR		 4484 return r;
4485}
4486
24bdd9f4 4487static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4488 struct genl_info *info)
93da9cc1 4489{
4c476991 4490 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4491 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4492 struct wireless_dev *wdev = dev->ieee80211_ptr;
4493 struct mesh_config cur_params;
4494 int err = 0;
93da9cc1 4495 void *hdr;
4496 struct nlattr *pinfoattr;
4497 struct sk_buff *msg;
4498
29cbe68c
JB		 4499 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4500 return -EOPNOTSUPP;
4501
24bdd9f4 4502 if (!rdev->ops->get_mesh_config)
4c476991 4503 return -EOPNOTSUPP;
f3f92586 4504
29cbe68c
JB		 4505 wdev_lock(wdev);
4506 /* If not connected, get default parameters */
4507 if (!wdev->mesh_id_len)
4508 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4509 else
e35e4d28 4510 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4511 wdev_unlock(wdev);
4512
93da9cc1 4513 if (err)
4c476991 4514 return err;
93da9cc1 4515
4516 /* Draw up a netlink message to send back */
fd2120ca 4517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4518 if (!msg)
4519 return -ENOMEM;
15e47304 4520 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4521 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4522 if (!hdr)
efe1cf0c 4523 goto out;
24bdd9f4 4524 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4525 if (!pinfoattr)
4526 goto nla_put_failure;
9360ffd1
DM		 4527 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4528 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4529 cur_params.dot11MeshRetryTimeout) ||
4530 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4531 cur_params.dot11MeshConfirmTimeout) ||
4532 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4533 cur_params.dot11MeshHoldingTimeout) ||
4534 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4535 cur_params.dot11MeshMaxPeerLinks) ||
4536 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4537 cur_params.dot11MeshMaxRetries) ||
4538 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4539 cur_params.dot11MeshTTL) ||
4540 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4541 cur_params.element_ttl) ||
4542 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4543 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4544 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4545 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4546 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4547 cur_params.dot11MeshHWMPmaxPREQretries) ||
4548 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4549 cur_params.path_refresh_time) ||
4550 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4551 cur_params.min_discovery_timeout) ||
4552 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4553 cur_params.dot11MeshHWMPactivePathTimeout) ||
4554 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4555 cur_params.dot11MeshHWMPpreqMinInterval) ||
4556 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4557 cur_params.dot11MeshHWMPperrMinInterval) ||
4558 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4559 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4560 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4561 cur_params.dot11MeshHWMPRootMode) ||
4562 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4563 cur_params.dot11MeshHWMPRannInterval) ||
4564 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4565 cur_params.dot11MeshGateAnnouncementProtocol) ||
4566 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4567 cur_params.dot11MeshForwarding) ||
4568 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4569 cur_params.rssi_threshold) ||
4570 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4571 cur_params.ht_opmode) ||
4572 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4573 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4574 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4575 cur_params.dot11MeshHWMProotInterval) ||
4576 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4577 cur_params.dot11MeshHWMPconfirmationInterval) ||
4578 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4579 cur_params.power_mode) ||
4580 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4581 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4582 goto nla_put_failure;
93da9cc1 4583 nla_nest_end(msg, pinfoattr);
4584 genlmsg_end(msg, hdr);
4c476991 4585 return genlmsg_reply(msg, info);
93da9cc1 4586
3b85875a 4587 nla_put_failure:
93da9cc1 4588 genlmsg_cancel(msg, hdr);
efe1cf0c 4589 out:
d080e275 4590 nlmsg_free(msg);
4c476991 4591 return -ENOBUFS;
93da9cc1 4592}
4593
b54452b0 4594static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4595 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4596 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4597 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4598 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4599 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4600 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4601 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4602 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4603 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4604 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4605 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4606 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4607 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4608 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4609 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4610 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4611 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4612 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4613 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4614 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4615 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4616 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4617 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4618 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4619 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4620 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4621 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4622};
4623
c80d545d
JC		 4624static const struct nla_policy
4625 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4626 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4627 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4628 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4629 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4630 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4631 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4632 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4633 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4634 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4635};
4636
24bdd9f4 4637static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4638 struct mesh_config *cfg,
4639 u32 *mask_out)
93da9cc1 4640{
93da9cc1 4641 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4642 u32 mask = 0;
93da9cc1 4643
ea54fba2
MP		 4644#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4645do { \
4646 if (tb[attr]) { \
4647 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4648 return -EINVAL; \
4649 cfg->param = fn(tb[attr]); \
4650 mask |= (1 << (attr - 1)); \
4651 } \
4652} while (0)
bd90fdcc
JB		 4653
4654
24bdd9f4 4655 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4656 return -EINVAL;
4657 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4658 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4659 nl80211_meshconf_params_policy))
93da9cc1 4660 return -EINVAL;
4661
93da9cc1 4662 /* This makes sure that there aren't more than 32 mesh config
4663 * parameters (otherwise our bitfield scheme would not work.) */
4664 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4665
4666 /* Fill in the params struct */
ea54fba2 4667 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4668 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4669 nla_get_u16);
ea54fba2 4670 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4671 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4672 nla_get_u16);
ea54fba2 4673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4674 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4675 nla_get_u16);
ea54fba2 4676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4677 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4678 nla_get_u16);
ea54fba2 4679 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4680 mask, NL80211_MESHCONF_MAX_RETRIES,
4681 nla_get_u8);
ea54fba2 4682 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4683 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4685 mask, NL80211_MESHCONF_ELEMENT_TTL,
4686 nla_get_u8);
ea54fba2 4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4688 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4689 nla_get_u8);
ea54fba2
MP		 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4691 1, 255, mask,
a4f606ea
CYY		 4692 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4693 nla_get_u32);
ea54fba2 4694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4695 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4696 nla_get_u8);
ea54fba2 4697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4698 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4699 nla_get_u32);
ea54fba2 4700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4701 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4702 nla_get_u16);
ea54fba2
MP		 4703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4704 1, 65535, mask,
a4f606ea
CYY		 4705 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4706 nla_get_u32);
93da9cc1 4707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4708 1, 65535, mask,
4709 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4710 nla_get_u16);
dca7e943 4711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4712 1, 65535, mask,
4713 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4714 nla_get_u16);
93da9cc1 4715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4716 dot11MeshHWMPnetDiameterTraversalTime,
4717 1, 65535, mask,
a4f606ea
CYY		 4718 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4719 nla_get_u16);
ea54fba2
MP		 4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4721 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4722 nla_get_u8);
4723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4724 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4725 nla_get_u16);
63c5723b 4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4727 dot11MeshGateAnnouncementProtocol, 0, 1,
4728 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4729 nla_get_u8);
ea54fba2 4730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4731 mask, NL80211_MESHCONF_FORWARDING,
4732 nla_get_u8);
ea54fba2 4733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4734 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4735 nla_get_u32);
ea54fba2 4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4737 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4738 nla_get_u16);
4739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4740 1, 65535, mask,
ac1073a6
CYY		 4741 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4742 nla_get_u32);
ea54fba2 4743 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4744 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4745 nla_get_u16);
4746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4747 dot11MeshHWMPconfirmationInterval,
4748 1, 65535, mask,
728b19e5 4749 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4750 nla_get_u16);
3b1c5a53
MP		 4751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4752 NL80211_MESH_POWER_ACTIVE,
4753 NL80211_MESH_POWER_MAX,
4754 mask, NL80211_MESHCONF_POWER_MODE,
4755 nla_get_u32);
4756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4757 0, 65535, mask,
4758 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4759 if (mask_out)
4760 *mask_out = mask;
c80d545d 4761
bd90fdcc
JB		 4762 return 0;
4763
4764#undef FILL_IN_MESH_PARAM_IF_SET
4765}
4766
c80d545d
JC		 4767static int nl80211_parse_mesh_setup(struct genl_info *info,
4768 struct mesh_setup *setup)
4769{
bb2798d4 4770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4771 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4772
4773 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4774 return -EINVAL;
4775 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4776 info->attrs[NL80211_ATTR_MESH_SETUP],
4777 nl80211_mesh_setup_params_policy))
4778 return -EINVAL;
4779
d299a1f2
JC		 4780 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4781 setup->sync_method =
4782 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4783 IEEE80211_SYNC_METHOD_VENDOR :
4784 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4785
c80d545d
JC		 4786 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4787 setup->path_sel_proto =
4788 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4789 IEEE80211_PATH_PROTOCOL_VENDOR :
4790 IEEE80211_PATH_PROTOCOL_HWMP;
4791
4792 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4793 setup->path_metric =
4794 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4795 IEEE80211_PATH_METRIC_VENDOR :
4796 IEEE80211_PATH_METRIC_AIRTIME;
4797
581a8b0f
JC		 4798
4799 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4800 struct nlattr *ieattr =
581a8b0f 4801 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4802 if (!is_valid_ie_attr(ieattr))
4803 return -EINVAL;
581a8b0f
JC		 4804 setup->ie = nla_data(ieattr);
4805 setup->ie_len = nla_len(ieattr);
c80d545d 4806 }
bb2798d4
TP		 4807 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4808 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4809 return -EINVAL;
4810 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4811 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4812 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4813 if (setup->is_secure)
4814 setup->user_mpm = true;
c80d545d 4815
6e16d90b
CT		 4816 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4817 if (!setup->user_mpm)
4818 return -EINVAL;
4819 setup->auth_id =
4820 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4821 }
4822
c80d545d
JC		 4823 return 0;
4824}
4825
24bdd9f4 4826static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4827 struct genl_info *info)
bd90fdcc
JB		 4828{
4829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4830 struct net_device *dev = info->user_ptr[1];
29cbe68c 4831 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4832 struct mesh_config cfg;
4833 u32 mask;
4834 int err;
4835
29cbe68c
JB		 4836 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4837 return -EOPNOTSUPP;
4838
24bdd9f4 4839 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4840 return -EOPNOTSUPP;
4841
24bdd9f4 4842 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4843 if (err)
4844 return err;
4845
29cbe68c
JB		 4846 wdev_lock(wdev);
4847 if (!wdev->mesh_id_len)
4848 err = -ENOLINK;
4849
4850 if (!err)
e35e4d28 4851 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4852
4853 wdev_unlock(wdev);
4854
4855 return err;
93da9cc1 4856}
4857
f130347c
LR		 4858static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4859{
458f4f9e 4860 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4861 struct sk_buff *msg;
4862 void *hdr = NULL;
4863 struct nlattr *nl_reg_rules;
4864 unsigned int i;
f130347c
LR		 4865
4866 if (!cfg80211_regdomain)
5fe231e8 4867 return -EINVAL;
f130347c 4868
fd2120ca 4869 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4870 if (!msg)
4871 return -ENOBUFS;
f130347c 4872
15e47304 4873 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4874 NL80211_CMD_GET_REG);
4875 if (!hdr)
efe1cf0c 4876 goto put_failure;
f130347c 4877
57b5ce07
LR		 4878 if (reg_last_request_cell_base() &&
4879 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4880 NL80211_USER_REG_HINT_CELL_BASE))
4881 goto nla_put_failure;
4882
458f4f9e
JB		 4883 rcu_read_lock();
4884 regdom = rcu_dereference(cfg80211_regdomain);
4885
4886 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4887 (regdom->dfs_region &&
4888 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4889 goto nla_put_failure_rcu;
4890
f130347c
LR		 4891 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4892 if (!nl_reg_rules)
458f4f9e 4893 goto nla_put_failure_rcu;
f130347c 4894
458f4f9e 4895 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4896 struct nlattr *nl_reg_rule;
4897 const struct ieee80211_reg_rule *reg_rule;
4898 const struct ieee80211_freq_range *freq_range;
4899 const struct ieee80211_power_rule *power_rule;
4900
458f4f9e 4901 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4902 freq_range = &reg_rule->freq_range;
4903 power_rule = &reg_rule->power_rule;
4904
4905 nl_reg_rule = nla_nest_start(msg, i);
4906 if (!nl_reg_rule)
458f4f9e 4907 goto nla_put_failure_rcu;
f130347c 4908
9360ffd1
DM		 4909 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4910 reg_rule->flags) ||
4911 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4912 freq_range->start_freq_khz) ||
4913 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4914 freq_range->end_freq_khz) ||
4915 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4916 freq_range->max_bandwidth_khz) ||
4917 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4918 power_rule->max_antenna_gain) ||
4919 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4920 power_rule->max_eirp))
458f4f9e 4921 goto nla_put_failure_rcu;
f130347c
LR		 4922
4923 nla_nest_end(msg, nl_reg_rule);
4924 }
458f4f9e 4925 rcu_read_unlock();
f130347c
LR		 4926
4927 nla_nest_end(msg, nl_reg_rules);
4928
4929 genlmsg_end(msg, hdr);
5fe231e8 4930 return genlmsg_reply(msg, info);
f130347c 4931
458f4f9e
JB		 4932nla_put_failure_rcu:
4933 rcu_read_unlock();
f130347c
LR		 4934nla_put_failure:
4935 genlmsg_cancel(msg, hdr);
efe1cf0c 4936put_failure:
d080e275 4937 nlmsg_free(msg);
5fe231e8 4938 return -EMSGSIZE;
f130347c
LR		 4939}
4940
b2e1b302
LR		 4941static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4942{
4943 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4944 struct nlattr *nl_reg_rule;
4945 char *alpha2 = NULL;
4946 int rem_reg_rules = 0, r = 0;
4947 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4948 u8 dfs_region = 0;
b2e1b302
LR		 4949 struct ieee80211_regdomain *rd = NULL;
4950
4951 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4952 return -EINVAL;
4953
4954 if (!info->attrs[NL80211_ATTR_REG_RULES])
4955 return -EINVAL;
4956
4957 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4958
8b60b078
LR		 4959 if (info->attrs[NL80211_ATTR_DFS_REGION])
4960 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4961
b2e1b302 4962 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4963 rem_reg_rules) {
b2e1b302
LR		 4964 num_rules++;
4965 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4966 return -EINVAL;
b2e1b302
LR		 4967 }
4968
b2e1b302 4969 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4970 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4971
4972 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4973 if (!rd)
4974 return -ENOMEM;
b2e1b302
LR		 4975
4976 rd->n_reg_rules = num_rules;
4977 rd->alpha2[0] = alpha2[0];
4978 rd->alpha2[1] = alpha2[1];
4979
8b60b078
LR		 4980 /*
4981 * Disable DFS master mode if the DFS region was
4982 * not supported or known on this kernel.
4983 */
4984 if (reg_supported_dfs_region(dfs_region))
4985 rd->dfs_region = dfs_region;
4986
b2e1b302 4987 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4988 rem_reg_rules) {
b2e1b302 4989 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4990 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4991 reg_rule_policy);
b2e1b302
LR		 4992 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4993 if (r)
4994 goto bad_reg;
4995
4996 rule_idx++;
4997
d0e18f83
LR		 4998 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4999 r = -EINVAL;
b2e1b302 5000 goto bad_reg;
d0e18f83 5001 }
b2e1b302
LR		 5002 }
5003
b2e1b302 5004 r = set_regdom(rd);
6913b49a 5005 /* set_regdom took ownership */
1a919318 5006 rd = NULL;
b2e1b302 5007
d2372b31 5008 bad_reg:
b2e1b302 5009 kfree(rd);
d0e18f83 5010 return r;
b2e1b302
LR		 5011}
5012
83f5e2cf
JB		 5013static int validate_scan_freqs(struct nlattr *freqs)
5014{
5015 struct nlattr *attr1, *attr2;
5016 int n_channels = 0, tmp1, tmp2;
5017
5018 nla_for_each_nested(attr1, freqs, tmp1) {
5019 n_channels++;
5020 /*
5021 * Some hardware has a limited channel list for
5022 * scanning, and it is pretty much nonsensical
5023 * to scan for a channel twice, so disallow that
5024 * and don't require drivers to check that the
5025 * channel list they get isn't longer than what
5026 * they can scan, as long as they can scan all
5027 * the channels they registered at once.
5028 */
5029 nla_for_each_nested(attr2, freqs, tmp2)
5030 if (attr1 != attr2 &&
5031 nla_get_u32(attr1) == nla_get_u32(attr2))
5032 return 0;
5033 }
5034
5035 return n_channels;
5036}
5037
2a519311
JB		 5038static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5039{
4c476991 5040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5041 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5042 struct cfg80211_scan_request *request;
2a519311
JB		 5043 struct nlattr *attr;
5044 struct wiphy *wiphy;
83f5e2cf 5045 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5046 size_t ie_len;
2a519311 5047
f4a11bb0
JB		 5048 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5049 return -EINVAL;
5050
79c97e97 5051 wiphy = &rdev->wiphy;
2a519311 5052
4c476991
JB		 5053 if (!rdev->ops->scan)
5054 return -EOPNOTSUPP;
2a519311 5055
f9f47529
JB		 5056 if (rdev->scan_req) {
5057 err = -EBUSY;
5058 goto unlock;
5059 }
2a519311
JB		 5060
5061 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5062 n_channels = validate_scan_freqs(
5063 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5064 if (!n_channels) {
5065 err = -EINVAL;
5066 goto unlock;
5067 }
2a519311 5068 } else {
34850ab2 5069 enum ieee80211_band band;
83f5e2cf
JB		 5070 n_channels = 0;
5071
2a519311
JB		 5072 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5073 if (wiphy->bands[band])
5074 n_channels += wiphy->bands[band]->n_channels;
5075 }
5076
5077 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5078 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5079 n_ssids++;
5080
f9f47529
JB		 5081 if (n_ssids > wiphy->max_scan_ssids) {
5082 err = -EINVAL;
5083 goto unlock;
5084 }
2a519311 5085
70692ad2
JM		 5086 if (info->attrs[NL80211_ATTR_IE])
5087 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5088 else
5089 ie_len = 0;
5090
f9f47529
JB		 5091 if (ie_len > wiphy->max_scan_ie_len) {
5092 err = -EINVAL;
5093 goto unlock;
5094 }
18a83659 5095
2a519311 5096 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5097 + sizeof(*request->ssids) * n_ssids
5098 + sizeof(*request->channels) * n_channels
70692ad2 5099 + ie_len, GFP_KERNEL);
f9f47529
JB		 5100 if (!request) {
5101 err = -ENOMEM;
5102 goto unlock;
5103 }
2a519311 5104
2a519311 5105 if (n_ssids)
5ba63533 5106 request->ssids = (void *)&request->channels[n_channels];
2a519311 5107 request->n_ssids = n_ssids;
70692ad2
JM		 5108 if (ie_len) {
5109 if (request->ssids)
5110 request->ie = (void *)(request->ssids + n_ssids);
5111 else
5112 request->ie = (void *)(request->channels + n_channels);
5113 }
2a519311 5114
584991dc 5115 i = 0;
2a519311
JB		 5116 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5117 /* user specified, bail out if channel not found */
2a519311 5118 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5119 struct ieee80211_channel *chan;
5120
5121 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5122
5123 if (!chan) {
2a519311
JB		 5124 err = -EINVAL;
5125 goto out_free;
5126 }
584991dc
JB		 5127
5128 /* ignore disabled channels */
5129 if (chan->flags & IEEE80211_CHAN_DISABLED)
5130 continue;
5131
5132 request->channels[i] = chan;
2a519311
JB		 5133 i++;
5134 }
5135 } else {
34850ab2
JB		 5136 enum ieee80211_band band;
5137
2a519311 5138 /* all channels */
2a519311
JB		 5139 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5140 int j;
5141 if (!wiphy->bands[band])
5142 continue;
5143 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5144 struct ieee80211_channel *chan;
5145
5146 chan = &wiphy->bands[band]->channels[j];
5147
5148 if (chan->flags & IEEE80211_CHAN_DISABLED)
5149 continue;
5150
5151 request->channels[i] = chan;
2a519311
JB		 5152 i++;
5153 }
5154 }
5155 }
5156
584991dc
JB		 5157 if (!i) {
5158 err = -EINVAL;
5159 goto out_free;
5160 }
5161
5162 request->n_channels = i;
5163
2a519311
JB		 5164 i = 0;
5165 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5166 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5167 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5168 err = -EINVAL;
5169 goto out_free;
5170 }
57a27e1d 5171 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5172 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5173 i++;
5174 }
5175 }
5176
70692ad2
JM		 5177 if (info->attrs[NL80211_ATTR_IE]) {
5178 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5179 memcpy((void *)request->ie,
5180 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5181 request->ie_len);
5182 }
5183
34850ab2 5184 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5185 if (wiphy->bands[i])
5186 request->rates[i] =
5187 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5188
5189 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5190 nla_for_each_nested(attr,
5191 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5192 tmp) {
5193 enum ieee80211_band band = nla_type(attr);
5194
84404623 5195 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5196 err = -EINVAL;
5197 goto out_free;
5198 }
5199 err = ieee80211_get_ratemask(wiphy->bands[band],
5200 nla_data(attr),
5201 nla_len(attr),
5202 &request->rates[band]);
5203 if (err)
5204 goto out_free;
5205 }
5206 }
5207
46856bbf 5208 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5209 request->flags = nla_get_u32(
5210 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5211 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5212 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5213 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5214 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5215 err = -EOPNOTSUPP;
5216 goto out_free;
5217 }
5218 }
ed473771 5219
e9f935e3
RM		 5220 request->no_cck =
5221 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5222
fd014284 5223 request->wdev = wdev;
79c97e97 5224 request->wiphy = &rdev->wiphy;
15d6030b 5225 request->scan_start = jiffies;
2a519311 5226
79c97e97 5227 rdev->scan_req = request;
e35e4d28 5228 err = rdev_scan(rdev, request);
2a519311 5229
463d0183 5230 if (!err) {
fd014284
JB		 5231 nl80211_send_scan_start(rdev, wdev);
5232 if (wdev->netdev)
5233 dev_hold(wdev->netdev);
4c476991 5234 } else {
2a519311 5235 out_free:
79c97e97 5236 rdev->scan_req = NULL;
2a519311
JB		 5237 kfree(request);
5238 }
3b85875a 5239
f9f47529 5240 unlock:
2a519311
JB		 5241 return err;
5242}
5243
807f8a8c
LC		 5244static int nl80211_start_sched_scan(struct sk_buff *skb,
5245 struct genl_info *info)
5246{
5247 struct cfg80211_sched_scan_request *request;
5248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5249 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5250 struct nlattr *attr;
5251 struct wiphy *wiphy;
a1f1c21c 5252 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5253 u32 interval;
807f8a8c
LC		 5254 enum ieee80211_band band;
5255 size_t ie_len;
a1f1c21c 5256 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5257
5258 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5259 !rdev->ops->sched_scan_start)
5260 return -EOPNOTSUPP;
5261
5262 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5263 return -EINVAL;
5264
bbe6ad6d
LC		 5265 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5266 return -EINVAL;
5267
5268 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5269 if (interval == 0)
5270 return -EINVAL;
5271
807f8a8c
LC		 5272 wiphy = &rdev->wiphy;
5273
5274 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5275 n_channels = validate_scan_freqs(
5276 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5277 if (!n_channels)
5278 return -EINVAL;
5279 } else {
5280 n_channels = 0;
5281
5282 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5283 if (wiphy->bands[band])
5284 n_channels += wiphy->bands[band]->n_channels;
5285 }
5286
5287 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5288 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5289 tmp)
5290 n_ssids++;
5291
93b6aa69 5292 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5293 return -EINVAL;
5294
a1f1c21c
LC		 5295 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5296 nla_for_each_nested(attr,
5297 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5298 tmp)
5299 n_match_sets++;
5300
5301 if (n_match_sets > wiphy->max_match_sets)
5302 return -EINVAL;
5303
807f8a8c
LC		 5304 if (info->attrs[NL80211_ATTR_IE])
5305 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5306 else
5307 ie_len = 0;
5308
5a865bad 5309 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5310 return -EINVAL;
5311
c10841ca
LC		 5312 if (rdev->sched_scan_req) {
5313 err = -EINPROGRESS;
5314 goto out;
5315 }
5316
807f8a8c 5317 request = kzalloc(sizeof(*request)
a2cd43c5 5318 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5319 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5320 + sizeof(*request->channels) * n_channels
807f8a8c 5321 + ie_len, GFP_KERNEL);
c10841ca
LC		 5322 if (!request) {
5323 err = -ENOMEM;
5324 goto out;
5325 }
807f8a8c
LC		 5326
5327 if (n_ssids)
5328 request->ssids = (void *)&request->channels[n_channels];
5329 request->n_ssids = n_ssids;
5330 if (ie_len) {
5331 if (request->ssids)
5332 request->ie = (void *)(request->ssids + n_ssids);
5333 else
5334 request->ie = (void *)(request->channels + n_channels);
5335 }
5336
a1f1c21c
LC		 5337 if (n_match_sets) {
5338 if (request->ie)
5339 request->match_sets = (void *)(request->ie + ie_len);
5340 else if (request->ssids)
5341 request->match_sets =
5342 (void *)(request->ssids + n_ssids);
5343 else
5344 request->match_sets =
5345 (void *)(request->channels + n_channels);
5346 }
5347 request->n_match_sets = n_match_sets;
5348
807f8a8c
LC		 5349 i = 0;
5350 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5351 /* user specified, bail out if channel not found */
5352 nla_for_each_nested(attr,
5353 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5354 tmp) {
5355 struct ieee80211_channel *chan;
5356
5357 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5358
5359 if (!chan) {
5360 err = -EINVAL;
5361 goto out_free;
5362 }
5363
5364 /* ignore disabled channels */
5365 if (chan->flags & IEEE80211_CHAN_DISABLED)
5366 continue;
5367
5368 request->channels[i] = chan;
5369 i++;
5370 }
5371 } else {
5372 /* all channels */
5373 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5374 int j;
5375 if (!wiphy->bands[band])
5376 continue;
5377 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5378 struct ieee80211_channel *chan;
5379
5380 chan = &wiphy->bands[band]->channels[j];
5381
5382 if (chan->flags & IEEE80211_CHAN_DISABLED)
5383 continue;
5384
5385 request->channels[i] = chan;
5386 i++;
5387 }
5388 }
5389 }
5390
5391 if (!i) {
5392 err = -EINVAL;
5393 goto out_free;
5394 }
5395
5396 request->n_channels = i;
5397
5398 i = 0;
5399 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5400 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5401 tmp) {
57a27e1d 5402 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5403 err = -EINVAL;
5404 goto out_free;
5405 }
57a27e1d 5406 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5407 memcpy(request->ssids[i].ssid, nla_data(attr),
5408 nla_len(attr));
807f8a8c
LC		 5409 i++;
5410 }
5411 }
5412
a1f1c21c
LC		 5413 i = 0;
5414 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5415 nla_for_each_nested(attr,
5416 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5417 tmp) {
88e920b4 5418 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5419
5420 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5421 nla_data(attr), nla_len(attr),
5422 nl80211_match_policy);
4a4ab0d7 5423 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5424 if (ssid) {
5425 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5426 err = -EINVAL;
5427 goto out_free;
5428 }
5429 memcpy(request->match_sets[i].ssid.ssid,
5430 nla_data(ssid), nla_len(ssid));
5431 request->match_sets[i].ssid.ssid_len =
5432 nla_len(ssid);
5433 }
88e920b4
TP		 5434 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5435 if (rssi)
5436 request->rssi_thold = nla_get_u32(rssi);
5437 else
5438 request->rssi_thold =
5439 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5440 i++;
5441 }
5442 }
5443
807f8a8c
LC		 5444 if (info->attrs[NL80211_ATTR_IE]) {
5445 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5446 memcpy((void *)request->ie,
5447 nla_data(info->attrs[NL80211_ATTR_IE]),
5448 request->ie_len);
5449 }
5450
46856bbf 5451 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5452 request->flags = nla_get_u32(
5453 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5454 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5455 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5456 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5457 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5458 err = -EOPNOTSUPP;
5459 goto out_free;
5460 }
5461 }
ed473771 5462
807f8a8c
LC		 5463 request->dev = dev;
5464 request->wiphy = &rdev->wiphy;
bbe6ad6d 5465 request->interval = interval;
15d6030b 5466 request->scan_start = jiffies;
807f8a8c 5467
e35e4d28 5468 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5469 if (!err) {
5470 rdev->sched_scan_req = request;
5471 nl80211_send_sched_scan(rdev, dev,
5472 NL80211_CMD_START_SCHED_SCAN);
5473 goto out;
5474 }
5475
5476out_free:
5477 kfree(request);
5478out:
5479 return err;
5480}
5481
5482static int nl80211_stop_sched_scan(struct sk_buff *skb,
5483 struct genl_info *info)
5484{
5485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5486
5487 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5488 !rdev->ops->sched_scan_stop)
5489 return -EOPNOTSUPP;
5490
5fe231e8 5491 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5492}
5493
04f39047
SW		 5494static int nl80211_start_radar_detection(struct sk_buff *skb,
5495 struct genl_info *info)
5496{
5497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5498 struct net_device *dev = info->user_ptr[1];
5499 struct wireless_dev *wdev = dev->ieee80211_ptr;
5500 struct cfg80211_chan_def chandef;
5501 int err;
5502
5503 err = nl80211_parse_chandef(rdev, info, &chandef);
5504 if (err)
5505 return err;
5506
5507 if (wdev->cac_started)
5508 return -EBUSY;
5509
5510 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5511 if (err < 0)
5512 return err;
5513
5514 if (err == 0)
5515 return -EINVAL;
5516
5517 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5518 return -EINVAL;
5519
5520 if (!rdev->ops->start_radar_detection)
5521 return -EOPNOTSUPP;
5522
04f39047
SW		 5523 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5524 chandef.chan, CHAN_MODE_SHARED,
5525 BIT(chandef.width));
5526 if (err)
5fe231e8 5527 return err;
04f39047
SW		 5528
5529 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5530 if (!err) {
5531 wdev->channel = chandef.chan;
5532 wdev->cac_started = true;
5533 wdev->cac_start_time = jiffies;
5534 }
04f39047
SW		 5535 return err;
5536}
5537
9720bb3a
JB		 5538static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5539 u32 seq, int flags,
2a519311 5540 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5541 struct wireless_dev *wdev,
5542 struct cfg80211_internal_bss *intbss)
2a519311 5543{
48ab905d 5544 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5545 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5546 void *hdr;
5547 struct nlattr *bss;
8cef2c9d 5548 bool tsf = false;
48ab905d
JB		 5549
5550 ASSERT_WDEV_LOCK(wdev);
2a519311 5551
15e47304 5552 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5553 NL80211_CMD_NEW_SCAN_RESULTS);
5554 if (!hdr)
5555 return -1;
5556
9720bb3a
JB		 5557 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5558
97990a06
JB		 5559 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5560 goto nla_put_failure;
5561 if (wdev->netdev &&
9360ffd1
DM		 5562 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5563 goto nla_put_failure;
97990a06
JB		 5564 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5565 goto nla_put_failure;
2a519311
JB		 5566
5567 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5568 if (!bss)
5569 goto nla_put_failure;
9360ffd1 5570 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5571 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5572 goto nla_put_failure;
9caf0364
JB		 5573
5574 rcu_read_lock();
5575 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5576 if (ies) {
5577 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5578 goto fail_unlock_rcu;
5579 tsf = true;
5580 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5581 ies->len, ies->data))
5582 goto fail_unlock_rcu;
9caf0364
JB		 5583 }
5584 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5585 if (ies) {
5586 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5587 goto fail_unlock_rcu;
5588 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5589 ies->len, ies->data))
5590 goto fail_unlock_rcu;
9caf0364
JB		 5591 }
5592 rcu_read_unlock();
5593
9360ffd1
DM		 5594 if (res->beacon_interval &&
5595 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5596 goto nla_put_failure;
5597 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5598 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5599 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5600 jiffies_to_msecs(jiffies - intbss->ts)))
5601 goto nla_put_failure;
2a519311 5602
77965c97 5603 switch (rdev->wiphy.signal_type) {
2a519311 5604 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5605 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5606 goto nla_put_failure;
2a519311
JB		 5607 break;
5608 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5609 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5610 goto nla_put_failure;
2a519311
JB		 5611 break;
5612 default:
5613 break;
5614 }
5615
48ab905d 5616 switch (wdev->iftype) {
074ac8df 5617 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5618 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5619 if (intbss == wdev->current_bss &&
5620 nla_put_u32(msg, NL80211_BSS_STATUS,
5621 NL80211_BSS_STATUS_ASSOCIATED))
5622 goto nla_put_failure;
48ab905d
JB		 5623 break;
5624 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5625 if (intbss == wdev->current_bss &&
5626 nla_put_u32(msg, NL80211_BSS_STATUS,
5627 NL80211_BSS_STATUS_IBSS_JOINED))
5628 goto nla_put_failure;
48ab905d
JB		 5629 break;
5630 default:
5631 break;
5632 }
5633
2a519311
JB		 5634 nla_nest_end(msg, bss);
5635
5636 return genlmsg_end(msg, hdr);
5637
8cef2c9d
JB		 5638 fail_unlock_rcu:
5639 rcu_read_unlock();
2a519311
JB		 5640 nla_put_failure:
5641 genlmsg_cancel(msg, hdr);
5642 return -EMSGSIZE;
5643}
5644
97990a06 5645static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5646{
48ab905d 5647 struct cfg80211_registered_device *rdev;
2a519311 5648 struct cfg80211_internal_bss *scan;
48ab905d 5649 struct wireless_dev *wdev;
97990a06 5650 int start = cb->args[2], idx = 0;
2a519311
JB		 5651 int err;
5652
97990a06 5653 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5654 if (err)
5655 return err;
2a519311 5656
48ab905d
JB		 5657 wdev_lock(wdev);
5658 spin_lock_bh(&rdev->bss_lock);
5659 cfg80211_bss_expire(rdev);
5660
9720bb3a
JB		 5661 cb->seq = rdev->bss_generation;
5662
48ab905d 5663 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5664 if (++idx <= start)
5665 continue;
9720bb3a 5666 if (nl80211_send_bss(skb, cb,
2a519311 5667 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5668 rdev, wdev, scan) < 0) {
2a519311 5669 idx--;
67748893 5670 break;
2a519311
JB		 5671 }
5672 }
5673
48ab905d
JB		 5674 spin_unlock_bh(&rdev->bss_lock);
5675 wdev_unlock(wdev);
2a519311 5676
97990a06
JB		 5677 cb->args[2] = idx;
5678 nl80211_finish_wdev_dump(rdev);
2a519311 5679
67748893 5680 return skb->len;
2a519311
JB		 5681}
5682
15e47304 5683static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5684 int flags, struct net_device *dev,
5685 struct survey_info *survey)
5686{
5687 void *hdr;
5688 struct nlattr *infoattr;
5689
15e47304 5690 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5691 NL80211_CMD_NEW_SURVEY_RESULTS);
5692 if (!hdr)
5693 return -ENOMEM;
5694
9360ffd1
DM		 5695 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5696 goto nla_put_failure;
61fa713c
HS		 5697
5698 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5699 if (!infoattr)
5700 goto nla_put_failure;
5701
9360ffd1
DM		 5702 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5703 survey->channel->center_freq))
5704 goto nla_put_failure;
5705
5706 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5707 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5708 goto nla_put_failure;
5709 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5710 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5711 goto nla_put_failure;
5712 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5713 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5714 survey->channel_time))
5715 goto nla_put_failure;
5716 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5717 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5718 survey->channel_time_busy))
5719 goto nla_put_failure;
5720 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5721 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5722 survey->channel_time_ext_busy))
5723 goto nla_put_failure;
5724 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5725 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5726 survey->channel_time_rx))
5727 goto nla_put_failure;
5728 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5729 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5730 survey->channel_time_tx))
5731 goto nla_put_failure;
61fa713c
HS		 5732
5733 nla_nest_end(msg, infoattr);
5734
5735 return genlmsg_end(msg, hdr);
5736
5737 nla_put_failure:
5738 genlmsg_cancel(msg, hdr);
5739 return -EMSGSIZE;
5740}
5741
5742static int nl80211_dump_survey(struct sk_buff *skb,
5743 struct netlink_callback *cb)
5744{
5745 struct survey_info survey;
5746 struct cfg80211_registered_device *dev;
97990a06
JB		 5747 struct wireless_dev *wdev;
5748 int survey_idx = cb->args[2];
61fa713c
HS		 5749 int res;
5750
97990a06 5751 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5752 if (res)
5753 return res;
61fa713c 5754
97990a06
JB		 5755 if (!wdev->netdev) {
5756 res = -EINVAL;
5757 goto out_err;
5758 }
5759
61fa713c
HS		 5760 if (!dev->ops->dump_survey) {
5761 res = -EOPNOTSUPP;
5762 goto out_err;
5763 }
5764
5765 while (1) {
180cdc79
LR		 5766 struct ieee80211_channel *chan;
5767
97990a06 5768 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5769 if (res == -ENOENT)
5770 break;
5771 if (res)
5772 goto out_err;
5773
180cdc79
LR		 5774 /* Survey without a channel doesn't make sense */
5775 if (!survey.channel) {
5776 res = -EINVAL;
5777 goto out;
5778 }
5779
5780 chan = ieee80211_get_channel(&dev->wiphy,
5781 survey.channel->center_freq);
5782 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5783 survey_idx++;
5784 continue;
5785 }
5786
61fa713c 5787 if (nl80211_send_survey(skb,
15e47304 5788 NETLINK_CB(cb->skb).portid,
61fa713c 5789 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5790 wdev->netdev, &survey) < 0)
61fa713c
HS		 5791 goto out;
5792 survey_idx++;
5793 }
5794
5795 out:
97990a06 5796 cb->args[2] = survey_idx;
61fa713c
HS		 5797 res = skb->len;
5798 out_err:
97990a06 5799 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5800 return res;
5801}
5802
b23aa676
SO		 5803static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5804{
5805 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5806 NL80211_WPA_VERSION_2));
5807}
5808
636a5d36
JM		 5809static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5810{
4c476991
JB		 5811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5812 struct net_device *dev = info->user_ptr[1];
19957bb3 5813 struct ieee80211_channel *chan;
e39e5b5e
JM		 5814 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5815 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5816 enum nl80211_auth_type auth_type;
fffd0934 5817 struct key_parse key;
d5cdfacb 5818 bool local_state_change;
636a5d36 5819
f4a11bb0
JB		 5820 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5821 return -EINVAL;
5822
5823 if (!info->attrs[NL80211_ATTR_MAC])
5824 return -EINVAL;
5825
1778092e
JM		 5826 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5827 return -EINVAL;
5828
19957bb3
JB		 5829 if (!info->attrs[NL80211_ATTR_SSID])
5830 return -EINVAL;
5831
5832 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5833 return -EINVAL;
5834
fffd0934
JB		 5835 err = nl80211_parse_key(info, &key);
5836 if (err)
5837 return err;
5838
5839 if (key.idx >= 0) {
e31b8213
JB		 5840 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5841 return -EINVAL;
fffd0934
JB		 5842 if (!key.p.key || !key.p.key_len)
5843 return -EINVAL;
5844 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5845 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5846 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5847 key.p.key_len != WLAN_KEY_LEN_WEP104))
5848 return -EINVAL;
5849 if (key.idx > 4)
5850 return -EINVAL;
5851 } else {
5852 key.p.key_len = 0;
5853 key.p.key = NULL;
5854 }
5855
afea0b7a
JB		 5856 if (key.idx >= 0) {
5857 int i;
5858 bool ok = false;
5859 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5860 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5861 ok = true;
5862 break;
5863 }
5864 }
4c476991
JB		 5865 if (!ok)
5866 return -EINVAL;
afea0b7a
JB		 5867 }
5868
4c476991
JB		 5869 if (!rdev->ops->auth)
5870 return -EOPNOTSUPP;
636a5d36 5871
074ac8df 5872 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5873 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5874 return -EOPNOTSUPP;
eec60b03 5875
19957bb3 5876 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5877 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5878 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5879 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5880 return -EINVAL;
636a5d36 5881
19957bb3
JB		 5882 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5883 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5884
5885 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5886 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5887 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5888 }
5889
19957bb3 5890 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5891 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5892 return -EINVAL;
636a5d36 5893
e39e5b5e
JM		 5894 if (auth_type == NL80211_AUTHTYPE_SAE &&
5895 !info->attrs[NL80211_ATTR_SAE_DATA])
5896 return -EINVAL;
5897
5898 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5899 if (auth_type != NL80211_AUTHTYPE_SAE)
5900 return -EINVAL;
5901 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5902 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5903 /* need to include at least Auth Transaction and Status Code */
5904 if (sae_data_len < 4)
5905 return -EINVAL;
5906 }
5907
d5cdfacb
JM		 5908 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5909
95de817b
JB		 5910 /*
5911 * Since we no longer track auth state, ignore
5912 * requests to only change local state.
5913 */
5914 if (local_state_change)
5915 return 0;
5916
91bf9b26
JB		 5917 wdev_lock(dev->ieee80211_ptr);
5918 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5919 ssid, ssid_len, ie, ie_len,
5920 key.p.key, key.p.key_len, key.idx,
5921 sae_data, sae_data_len);
5922 wdev_unlock(dev->ieee80211_ptr);
5923 return err;
636a5d36
JM		 5924}
5925
c0692b8f
JB		 5926static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5927 struct genl_info *info,
3dc27d25
JB		 5928 struct cfg80211_crypto_settings *settings,
5929 int cipher_limit)
b23aa676 5930{
c0b2bbd8
JB		 5931 memset(settings, 0, sizeof(*settings));
5932
b23aa676
SO		 5933 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5934
c0692b8f
JB		 5935 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5936 u16 proto;
5937 proto = nla_get_u16(
5938 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5939 settings->control_port_ethertype = cpu_to_be16(proto);
5940 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5941 proto != ETH_P_PAE)
5942 return -EINVAL;
5943 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5944 settings->control_port_no_encrypt = true;
5945 } else
5946 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5947
b23aa676
SO		 5948 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5949 void *data;
5950 int len, i;
5951
5952 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5953 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5954 settings->n_ciphers_pairwise = len / sizeof(u32);
5955
5956 if (len % sizeof(u32))
5957 return -EINVAL;
5958
3dc27d25 5959 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5960 return -EINVAL;
5961
5962 memcpy(settings->ciphers_pairwise, data, len);
5963
5964 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5965 if (!cfg80211_supported_cipher_suite(
5966 &rdev->wiphy,
b23aa676
SO		 5967 settings->ciphers_pairwise[i]))
5968 return -EINVAL;
5969 }
5970
5971 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5972 settings->cipher_group =
5973 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5974 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5975 settings->cipher_group))
b23aa676
SO		 5976 return -EINVAL;
5977 }
5978
5979 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5980 settings->wpa_versions =
5981 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5982 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5983 return -EINVAL;
5984 }
5985
5986 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5987 void *data;
6d30240e 5988 int len;
b23aa676
SO		 5989
5990 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5991 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5992 settings->n_akm_suites = len / sizeof(u32);
5993
5994 if (len % sizeof(u32))
5995 return -EINVAL;
5996
1b9ca027
JM		 5997 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5998 return -EINVAL;
5999
b23aa676 6000 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6001 }
6002
6003 return 0;
6004}
6005
636a5d36
JM		 6006static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6007{
4c476991
JB		 6008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6009 struct net_device *dev = info->user_ptr[1];
f444de05 6010 struct ieee80211_channel *chan;
f62fab73
JB		 6011 struct cfg80211_assoc_request req = {};
6012 const u8 *bssid, *ssid;
6013 int err, ssid_len = 0;
636a5d36 6014
f4a11bb0
JB		 6015 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6016 return -EINVAL;
6017
6018 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6019 !info->attrs[NL80211_ATTR_SSID] ||
6020 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6021 return -EINVAL;
6022
4c476991
JB		 6023 if (!rdev->ops->assoc)
6024 return -EOPNOTSUPP;
636a5d36 6025
074ac8df 6026 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6028 return -EOPNOTSUPP;
eec60b03 6029
19957bb3 6030 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6031
19957bb3
JB		 6032 chan = ieee80211_get_channel(&rdev->wiphy,
6033 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6034 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6035 return -EINVAL;
636a5d36 6036
19957bb3
JB		 6037 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6038 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6039
6040 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6041 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6042 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6043 }
6044
dc6382ce 6045 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6046 enum nl80211_mfp mfp =
dc6382ce 6047 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6048 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6049 req.use_mfp = true;
4c476991
JB		 6050 else if (mfp != NL80211_MFP_NO)
6051 return -EINVAL;
dc6382ce
JM		 6052 }
6053
3e5d7649 6054 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6055 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6056
7e7c8926 6057 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6058 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6059
6060 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6061 memcpy(&req.ht_capa_mask,
6062 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6063 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6064
6065 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6066 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6067 return -EINVAL;
f62fab73
JB		 6068 memcpy(&req.ht_capa,
6069 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6070 sizeof(req.ht_capa));
7e7c8926
BG		 6071 }
6072
ee2aca34 6073 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6074 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6075
6076 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6077 memcpy(&req.vht_capa_mask,
6078 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6079 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6080
6081 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6082 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6083 return -EINVAL;
f62fab73
JB		 6084 memcpy(&req.vht_capa,
6085 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6086 sizeof(req.vht_capa));
ee2aca34
JB		 6087 }
6088
f62fab73 6089 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6090 if (!err) {
6091 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6092 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6093 ssid, ssid_len, &req);
91bf9b26
JB		 6094 wdev_unlock(dev->ieee80211_ptr);
6095 }
636a5d36 6096
636a5d36
JM		 6097 return err;
6098}
6099
6100static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6101{
4c476991
JB		 6102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6103 struct net_device *dev = info->user_ptr[1];
19957bb3 6104 const u8 *ie = NULL, *bssid;
91bf9b26 6105 int ie_len = 0, err;
19957bb3 6106 u16 reason_code;
d5cdfacb 6107 bool local_state_change;
636a5d36 6108
f4a11bb0
JB		 6109 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6110 return -EINVAL;
6111
6112 if (!info->attrs[NL80211_ATTR_MAC])
6113 return -EINVAL;
6114
6115 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6116 return -EINVAL;
6117
4c476991
JB		 6118 if (!rdev->ops->deauth)
6119 return -EOPNOTSUPP;
636a5d36 6120
074ac8df 6121 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6122 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6123 return -EOPNOTSUPP;
eec60b03 6124
19957bb3 6125 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6126
19957bb3
JB		 6127 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6128 if (reason_code == 0) {
f4a11bb0 6129 /* Reason Code 0 is reserved */
4c476991 6130 return -EINVAL;
255e737e 6131 }
636a5d36
JM		 6132
6133 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6134 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6135 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6136 }
6137
d5cdfacb
JM		 6138 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6139
91bf9b26
JB		 6140 wdev_lock(dev->ieee80211_ptr);
6141 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6142 local_state_change);
6143 wdev_unlock(dev->ieee80211_ptr);
6144 return err;
636a5d36
JM		 6145}
6146
6147static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6148{
4c476991
JB		 6149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6150 struct net_device *dev = info->user_ptr[1];
19957bb3 6151 const u8 *ie = NULL, *bssid;
91bf9b26 6152 int ie_len = 0, err;
19957bb3 6153 u16 reason_code;
d5cdfacb 6154 bool local_state_change;
636a5d36 6155
f4a11bb0
JB		 6156 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6157 return -EINVAL;
6158
6159 if (!info->attrs[NL80211_ATTR_MAC])
6160 return -EINVAL;
6161
6162 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6163 return -EINVAL;
6164
4c476991
JB		 6165 if (!rdev->ops->disassoc)
6166 return -EOPNOTSUPP;
636a5d36 6167
074ac8df 6168 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6170 return -EOPNOTSUPP;
eec60b03 6171
19957bb3 6172 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6173
19957bb3
JB		 6174 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6175 if (reason_code == 0) {
f4a11bb0 6176 /* Reason Code 0 is reserved */
4c476991 6177 return -EINVAL;
255e737e 6178 }
636a5d36
JM		 6179
6180 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6181 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6182 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6183 }
6184
d5cdfacb
JM		 6185 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6186
91bf9b26
JB		 6187 wdev_lock(dev->ieee80211_ptr);
6188 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6189 local_state_change);
6190 wdev_unlock(dev->ieee80211_ptr);
6191 return err;
636a5d36
JM		 6192}
6193
dd5b4cc7
FF		 6194static bool
6195nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6196 int mcast_rate[IEEE80211_NUM_BANDS],
6197 int rateval)
6198{
6199 struct wiphy *wiphy = &rdev->wiphy;
6200 bool found = false;
6201 int band, i;
6202
6203 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6204 struct ieee80211_supported_band *sband;
6205
6206 sband = wiphy->bands[band];
6207 if (!sband)
6208 continue;
6209
6210 for (i = 0; i < sband->n_bitrates; i++) {
6211 if (sband->bitrates[i].bitrate == rateval) {
6212 mcast_rate[band] = i + 1;
6213 found = true;
6214 break;
6215 }
6216 }
6217 }
6218
6219 return found;
6220}
6221
04a773ad
JB		 6222static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6223{
4c476991
JB		 6224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6225 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6226 struct cfg80211_ibss_params ibss;
6227 struct wiphy *wiphy;
fffd0934 6228 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6229 int err;
6230
8e30bc55
JB		 6231 memset(&ibss, 0, sizeof(ibss));
6232
04a773ad
JB		 6233 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6234 return -EINVAL;
6235
683b6d3b 6236 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6237 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6238 return -EINVAL;
6239
8e30bc55
JB		 6240 ibss.beacon_interval = 100;
6241
6242 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6243 ibss.beacon_interval =
6244 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6245 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6246 return -EINVAL;
6247 }
6248
4c476991
JB		 6249 if (!rdev->ops->join_ibss)
6250 return -EOPNOTSUPP;
04a773ad 6251
4c476991
JB		 6252 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6253 return -EOPNOTSUPP;
04a773ad 6254
79c97e97 6255 wiphy = &rdev->wiphy;
04a773ad 6256
39193498 6257 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6258 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6259
6260 if (!is_valid_ether_addr(ibss.bssid))
6261 return -EINVAL;
6262 }
04a773ad
JB		 6263 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6264 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6265
6266 if (info->attrs[NL80211_ATTR_IE]) {
6267 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6268 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6269 }
6270
683b6d3b
JB		 6271 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6272 if (err)
6273 return err;
04a773ad 6274
683b6d3b 6275 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6276 return -EINVAL;
6277
db9c64cf
JB		 6278 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6279 return -EINVAL;
6280 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6281 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6282 return -EINVAL;
db9c64cf 6283
04a773ad 6284 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6285 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6286
fbd2c8dc
TP		 6287 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6288 u8 *rates =
6289 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6290 int n_rates =
6291 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6292 struct ieee80211_supported_band *sband =
683b6d3b 6293 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6294
34850ab2
JB		 6295 err = ieee80211_get_ratemask(sband, rates, n_rates,
6296 &ibss.basic_rates);
6297 if (err)
6298 return err;
fbd2c8dc 6299 }
dd5b4cc7
FF		 6300
6301 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6302 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6303 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6304 return -EINVAL;
fbd2c8dc 6305
4c476991 6306 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6307 bool no_ht = false;
6308
4c476991 6309 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6310 info->attrs[NL80211_ATTR_KEYS],
6311 &no_ht);
4c476991
JB		 6312 if (IS_ERR(connkeys))
6313 return PTR_ERR(connkeys);
de7044ee 6314
3d9d1d66
JB		 6315 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6316 no_ht) {
de7044ee
SM		 6317 kfree(connkeys);
6318 return -EINVAL;
6319 }
4c476991 6320 }
04a773ad 6321
267335d6
AQ		 6322 ibss.control_port =
6323 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6324
4c476991 6325 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6326 if (err)
6327 kfree(connkeys);
04a773ad
JB		 6328 return err;
6329}
6330
6331static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6332{
4c476991
JB		 6333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6334 struct net_device *dev = info->user_ptr[1];
04a773ad 6335
4c476991
JB		 6336 if (!rdev->ops->leave_ibss)
6337 return -EOPNOTSUPP;
04a773ad 6338
4c476991
JB		 6339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6340 return -EOPNOTSUPP;
04a773ad 6341
4c476991 6342 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6343}
6344
f4e583c8
AQ		 6345static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6346{
6347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6348 struct net_device *dev = info->user_ptr[1];
6349 int mcast_rate[IEEE80211_NUM_BANDS];
6350 u32 nla_rate;
6351 int err;
6352
6353 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6354 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6355 return -EOPNOTSUPP;
6356
6357 if (!rdev->ops->set_mcast_rate)
6358 return -EOPNOTSUPP;
6359
6360 memset(mcast_rate, 0, sizeof(mcast_rate));
6361
6362 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6363 return -EINVAL;
6364
6365 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6366 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6367 return -EINVAL;
6368
6369 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6370
6371 return err;
6372}
6373
6374
aff89a9b
JB		 6375#ifdef CONFIG_NL80211_TESTMODE
6376static struct genl_multicast_group nl80211_testmode_mcgrp = {
6377 .name = "testmode",
6378};
6379
6380static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6381{
4c476991 6382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6383 int err;
6384
6385 if (!info->attrs[NL80211_ATTR_TESTDATA])
6386 return -EINVAL;
6387
aff89a9b
JB		 6388 err = -EOPNOTSUPP;
6389 if (rdev->ops->testmode_cmd) {
6390 rdev->testmode_info = info;
e35e4d28 6391 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6392 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6393 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6394 rdev->testmode_info = NULL;
6395 }
6396
aff89a9b
JB		 6397 return err;
6398}
6399
71063f0e
WYG		 6400static int nl80211_testmode_dump(struct sk_buff *skb,
6401 struct netlink_callback *cb)
6402{
00918d33 6403 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6404 int err;
6405 long phy_idx;
6406 void *data = NULL;
6407 int data_len = 0;
6408
5fe231e8
JB		 6409 rtnl_lock();
6410
71063f0e
WYG		 6411 if (cb->args[0]) {
6412 /*
6413 * 0 is a valid index, but not valid for args[0],
6414 * so we need to offset by 1.
6415 */
6416 phy_idx = cb->args[0] - 1;
6417 } else {
6418 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6419 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6420 nl80211_policy);
6421 if (err)
5fe231e8 6422 goto out_err;
00918d33 6423
2bd7e35d
JB		 6424 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6425 nl80211_fam.attrbuf);
6426 if (IS_ERR(rdev)) {
5fe231e8
JB		 6427 err = PTR_ERR(rdev);
6428 goto out_err;
00918d33 6429 }
2bd7e35d
JB		 6430 phy_idx = rdev->wiphy_idx;
6431 rdev = NULL;
2bd7e35d 6432
71063f0e
WYG		 6433 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6434 cb->args[1] =
6435 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6436 }
6437
6438 if (cb->args[1]) {
6439 data = nla_data((void *)cb->args[1]);
6440 data_len = nla_len((void *)cb->args[1]);
6441 }
6442
00918d33
JB		 6443 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6444 if (!rdev) {
5fe231e8
JB		 6445 err = -ENOENT;
6446 goto out_err;
71063f0e 6447 }
71063f0e 6448
00918d33 6449 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6450 err = -EOPNOTSUPP;
6451 goto out_err;
6452 }
6453
6454 while (1) {
15e47304 6455 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6456 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6457 NL80211_CMD_TESTMODE);
6458 struct nlattr *tmdata;
6459
9360ffd1 6460 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6461 genlmsg_cancel(skb, hdr);
6462 break;
6463 }
6464
6465 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6466 if (!tmdata) {
6467 genlmsg_cancel(skb, hdr);
6468 break;
6469 }
e35e4d28 6470 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6471 nla_nest_end(skb, tmdata);
6472
6473 if (err == -ENOBUFS || err == -ENOENT) {
6474 genlmsg_cancel(skb, hdr);
6475 break;
6476 } else if (err) {
6477 genlmsg_cancel(skb, hdr);
6478 goto out_err;
6479 }
6480
6481 genlmsg_end(skb, hdr);
6482 }
6483
6484 err = skb->len;
6485 /* see above */
6486 cb->args[0] = phy_idx + 1;
6487 out_err:
5fe231e8 6488 rtnl_unlock();
71063f0e
WYG		 6489 return err;
6490}
6491
aff89a9b
JB		 6492static struct sk_buff *
6493__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6494 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6495{
6496 struct sk_buff *skb;
6497 void *hdr;
6498 struct nlattr *data;
6499
6500 skb = nlmsg_new(approxlen + 100, gfp);
6501 if (!skb)
6502 return NULL;
6503
15e47304 6504 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6505 if (!hdr) {
6506 kfree_skb(skb);
6507 return NULL;
6508 }
6509
9360ffd1
DM		 6510 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6511 goto nla_put_failure;
aff89a9b
JB		 6512 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6513
6514 ((void **)skb->cb)[0] = rdev;
6515 ((void **)skb->cb)[1] = hdr;
6516 ((void **)skb->cb)[2] = data;
6517
6518 return skb;
6519
6520 nla_put_failure:
6521 kfree_skb(skb);
6522 return NULL;
6523}
6524
6525struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6526 int approxlen)
6527{
6528 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6529
6530 if (WARN_ON(!rdev->testmode_info))
6531 return NULL;
6532
6533 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6534 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6535 rdev->testmode_info->snd_seq,
6536 GFP_KERNEL);
6537}
6538EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6539
6540int cfg80211_testmode_reply(struct sk_buff *skb)
6541{
6542 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6543 void *hdr = ((void **)skb->cb)[1];
6544 struct nlattr *data = ((void **)skb->cb)[2];
6545
6546 if (WARN_ON(!rdev->testmode_info)) {
6547 kfree_skb(skb);
6548 return -EINVAL;
6549 }
6550
6551 nla_nest_end(skb, data);
6552 genlmsg_end(skb, hdr);
6553 return genlmsg_reply(skb, rdev->testmode_info);
6554}
6555EXPORT_SYMBOL(cfg80211_testmode_reply);
6556
6557struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6558 int approxlen, gfp_t gfp)
6559{
6560 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6561
6562 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6563}
6564EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6565
6566void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6567{
6568 void *hdr = ((void **)skb->cb)[1];
6569 struct nlattr *data = ((void **)skb->cb)[2];
6570
6571 nla_nest_end(skb, data);
6572 genlmsg_end(skb, hdr);
6573 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6574}
6575EXPORT_SYMBOL(cfg80211_testmode_event);
6576#endif
6577
b23aa676
SO		 6578static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6579{
4c476991
JB		 6580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6581 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6582 struct cfg80211_connect_params connect;
6583 struct wiphy *wiphy;
fffd0934 6584 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6585 int err;
6586
6587 memset(&connect, 0, sizeof(connect));
6588
6589 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6590 return -EINVAL;
6591
6592 if (!info->attrs[NL80211_ATTR_SSID] ||
6593 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6594 return -EINVAL;
6595
6596 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6597 connect.auth_type =
6598 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6599 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6600 NL80211_CMD_CONNECT))
b23aa676
SO		 6601 return -EINVAL;
6602 } else
6603 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6604
6605 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6606
c0692b8f 6607 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6608 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6609 if (err)
6610 return err;
b23aa676 6611
074ac8df 6612 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6613 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6614 return -EOPNOTSUPP;
b23aa676 6615
79c97e97 6616 wiphy = &rdev->wiphy;
b23aa676 6617
4486ea98
BS		 6618 connect.bg_scan_period = -1;
6619 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6620 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6621 connect.bg_scan_period =
6622 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6623 }
6624
b23aa676
SO		 6625 if (info->attrs[NL80211_ATTR_MAC])
6626 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6627 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6628 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6629
6630 if (info->attrs[NL80211_ATTR_IE]) {
6631 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6632 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6633 }
6634
cee00a95
JM		 6635 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6636 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6637 if (connect.mfp != NL80211_MFP_REQUIRED &&
6638 connect.mfp != NL80211_MFP_NO)
6639 return -EINVAL;
6640 } else {
6641 connect.mfp = NL80211_MFP_NO;
6642 }
6643
b23aa676
SO		 6644 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6645 connect.channel =
6646 ieee80211_get_channel(wiphy,
6647 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6648 if (!connect.channel ||
4c476991
JB		 6649 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6650 return -EINVAL;
b23aa676
SO		 6651 }
6652
fffd0934
JB		 6653 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6654 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6655 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6656 if (IS_ERR(connkeys))
6657 return PTR_ERR(connkeys);
fffd0934
JB		 6658 }
6659
7e7c8926
BG		 6660 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6661 connect.flags |= ASSOC_REQ_DISABLE_HT;
6662
6663 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6664 memcpy(&connect.ht_capa_mask,
6665 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6666 sizeof(connect.ht_capa_mask));
6667
6668 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6669 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6670 kfree(connkeys);
7e7c8926 6671 return -EINVAL;
b4e4f47e 6672 }
7e7c8926
BG		 6673 memcpy(&connect.ht_capa,
6674 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6675 sizeof(connect.ht_capa));
6676 }
6677
ee2aca34
JB		 6678 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6679 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6680
6681 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6682 memcpy(&connect.vht_capa_mask,
6683 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6684 sizeof(connect.vht_capa_mask));
6685
6686 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6687 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6688 kfree(connkeys);
6689 return -EINVAL;
6690 }
6691 memcpy(&connect.vht_capa,
6692 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6693 sizeof(connect.vht_capa));
6694 }
6695
83739b03
JB		 6696 wdev_lock(dev->ieee80211_ptr);
6697 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6698 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6699 if (err)
6700 kfree(connkeys);
b23aa676
SO		 6701 return err;
6702}
6703
6704static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6705{
4c476991
JB		 6706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6707 struct net_device *dev = info->user_ptr[1];
b23aa676 6708 u16 reason;
83739b03 6709 int ret;
b23aa676
SO		 6710
6711 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6712 reason = WLAN_REASON_DEAUTH_LEAVING;
6713 else
6714 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6715
6716 if (reason == 0)
6717 return -EINVAL;
6718
074ac8df 6719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6721 return -EOPNOTSUPP;
b23aa676 6722
83739b03
JB		 6723 wdev_lock(dev->ieee80211_ptr);
6724 ret = cfg80211_disconnect(rdev, dev, reason, true);
6725 wdev_unlock(dev->ieee80211_ptr);
6726 return ret;
b23aa676
SO		 6727}
6728
463d0183
JB		 6729static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6730{
4c476991 6731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6732 struct net *net;
6733 int err;
6734 u32 pid;
6735
6736 if (!info->attrs[NL80211_ATTR_PID])
6737 return -EINVAL;
6738
6739 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6740
463d0183 6741 net = get_net_ns_by_pid(pid);
4c476991
JB		 6742 if (IS_ERR(net))
6743 return PTR_ERR(net);
463d0183
JB		 6744
6745 err = 0;
6746
6747 /* check if anything to do */
4c476991
JB		 6748 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6749 err = cfg80211_switch_netns(rdev, net);
463d0183 6750
463d0183 6751 put_net(net);
463d0183
JB		 6752 return err;
6753}
6754
67fbb16b
SO		 6755static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6756{
4c476991 6757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6758 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6759 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6760 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6761 struct cfg80211_pmksa pmksa;
6762
6763 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6764
6765 if (!info->attrs[NL80211_ATTR_MAC])
6766 return -EINVAL;
6767
6768 if (!info->attrs[NL80211_ATTR_PMKID])
6769 return -EINVAL;
6770
67fbb16b
SO		 6771 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6772 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6773
074ac8df 6774 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6775 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6776 return -EOPNOTSUPP;
67fbb16b
SO		 6777
6778 switch (info->genlhdr->cmd) {
6779 case NL80211_CMD_SET_PMKSA:
6780 rdev_ops = rdev->ops->set_pmksa;
6781 break;
6782 case NL80211_CMD_DEL_PMKSA:
6783 rdev_ops = rdev->ops->del_pmksa;
6784 break;
6785 default:
6786 WARN_ON(1);
6787 break;
6788 }
6789
4c476991
JB		 6790 if (!rdev_ops)
6791 return -EOPNOTSUPP;
67fbb16b 6792
4c476991 6793 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6794}
6795
6796static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6797{
4c476991
JB		 6798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6799 struct net_device *dev = info->user_ptr[1];
67fbb16b 6800
074ac8df 6801 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6802 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6803 return -EOPNOTSUPP;
67fbb16b 6804
4c476991
JB		 6805 if (!rdev->ops->flush_pmksa)
6806 return -EOPNOTSUPP;
67fbb16b 6807
e35e4d28 6808 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6809}
6810
109086ce
AN		 6811static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6812{
6813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6814 struct net_device *dev = info->user_ptr[1];
6815 u8 action_code, dialog_token;
6816 u16 status_code;
6817 u8 *peer;
6818
6819 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6820 !rdev->ops->tdls_mgmt)
6821 return -EOPNOTSUPP;
6822
6823 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6824 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6825 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6826 !info->attrs[NL80211_ATTR_IE] ||
6827 !info->attrs[NL80211_ATTR_MAC])
6828 return -EINVAL;
6829
6830 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6831 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6832 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6833 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6834
e35e4d28
HG		 6835 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6836 dialog_token, status_code,
6837 nla_data(info->attrs[NL80211_ATTR_IE]),
6838 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6839}
6840
6841static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6842{
6843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6844 struct net_device *dev = info->user_ptr[1];
6845 enum nl80211_tdls_operation operation;
6846 u8 *peer;
6847
6848 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6849 !rdev->ops->tdls_oper)
6850 return -EOPNOTSUPP;
6851
6852 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6853 !info->attrs[NL80211_ATTR_MAC])
6854 return -EINVAL;
6855
6856 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6857 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6858
e35e4d28 6859 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6860}
6861
9588bbd5
JM		 6862static int nl80211_remain_on_channel(struct sk_buff *skb,
6863 struct genl_info *info)
6864{
4c476991 6865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6866 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6867 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6868 struct sk_buff *msg;
6869 void *hdr;
6870 u64 cookie;
683b6d3b 6871 u32 duration;
9588bbd5
JM		 6872 int err;
6873
6874 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6875 !info->attrs[NL80211_ATTR_DURATION])
6876 return -EINVAL;
6877
6878 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6879
ebf348fc
JB		 6880 if (!rdev->ops->remain_on_channel ||
6881 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6882 return -EOPNOTSUPP;
6883
9588bbd5 6884 /*
ebf348fc
JB		 6885 * We should be on that channel for at least a minimum amount of
6886 * time (10ms) but no longer than the driver supports.
9588bbd5 6887 */
ebf348fc 6888 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6889 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6890 return -EINVAL;
6891
683b6d3b
JB		 6892 err = nl80211_parse_chandef(rdev, info, &chandef);
6893 if (err)
6894 return err;
9588bbd5
JM		 6895
6896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6897 if (!msg)
6898 return -ENOMEM;
9588bbd5 6899
15e47304 6900 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6901 NL80211_CMD_REMAIN_ON_CHANNEL);
6902
6903 if (IS_ERR(hdr)) {
6904 err = PTR_ERR(hdr);
6905 goto free_msg;
6906 }
6907
683b6d3b
JB		 6908 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6909 duration, &cookie);
9588bbd5
JM		 6910
6911 if (err)
6912 goto free_msg;
6913
9360ffd1
DM		 6914 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6915 goto nla_put_failure;
9588bbd5
JM		 6916
6917 genlmsg_end(msg, hdr);
4c476991
JB		 6918
6919 return genlmsg_reply(msg, info);
9588bbd5
JM		 6920
6921 nla_put_failure:
6922 err = -ENOBUFS;
6923 free_msg:
6924 nlmsg_free(msg);
9588bbd5
JM		 6925 return err;
6926}
6927
6928static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6929 struct genl_info *info)
6930{
4c476991 6931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6932 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6933 u64 cookie;
9588bbd5
JM		 6934
6935 if (!info->attrs[NL80211_ATTR_COOKIE])
6936 return -EINVAL;
6937
4c476991
JB		 6938 if (!rdev->ops->cancel_remain_on_channel)
6939 return -EOPNOTSUPP;
9588bbd5 6940
9588bbd5
JM		 6941 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6942
e35e4d28 6943 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6944}
6945
13ae75b1
JM		 6946static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6947 u8 *rates, u8 rates_len)
6948{
6949 u8 i;
6950 u32 mask = 0;
6951
6952 for (i = 0; i < rates_len; i++) {
6953 int rate = (rates[i] & 0x7f) * 5;
6954 int ridx;
6955 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6956 struct ieee80211_rate *srate =
6957 &sband->bitrates[ridx];
6958 if (rate == srate->bitrate) {
6959 mask |= 1 << ridx;
6960 break;
6961 }
6962 }
6963 if (ridx == sband->n_bitrates)
6964 return 0; /* rate not found */
6965 }
6966
6967 return mask;
6968}
6969
24db78c0
SW		 6970static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6971 u8 *rates, u8 rates_len,
6972 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6973{
6974 u8 i;
6975
6976 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6977
6978 for (i = 0; i < rates_len; i++) {
6979 int ridx, rbit;
6980
6981 ridx = rates[i] / 8;
6982 rbit = BIT(rates[i] % 8);
6983
6984 /* check validity */
910570b5 6985 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6986 return false;
6987
6988 /* check availability */
6989 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6990 mcs[ridx] |= rbit;
6991 else
6992 return false;
6993 }
6994
6995 return true;
6996}
6997
b54452b0 6998static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6999 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7000 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7001 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7002 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7003};
7004
7005static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7006 struct genl_info *info)
7007{
7008 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7010 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7011 int rem, i;
7012 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7013 struct nlattr *tx_rates;
7014 struct ieee80211_supported_band *sband;
7015
7016 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7017 return -EINVAL;
7018
4c476991
JB		 7019 if (!rdev->ops->set_bitrate_mask)
7020 return -EOPNOTSUPP;
13ae75b1
JM		 7021
7022 memset(&mask, 0, sizeof(mask));
7023 /* Default to all rates enabled */
7024 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7025 sband = rdev->wiphy.bands[i];
7026 mask.control[i].legacy =
7027 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7028 if (sband)
7029 memcpy(mask.control[i].mcs,
7030 sband->ht_cap.mcs.rx_mask,
7031 sizeof(mask.control[i].mcs));
7032 else
7033 memset(mask.control[i].mcs, 0,
7034 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7035 }
7036
7037 /*
7038 * The nested attribute uses enum nl80211_band as the index. This maps
7039 * directly to the enum ieee80211_band values used in cfg80211.
7040 */
24db78c0 7041 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7042 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7043 {
7044 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7045 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7046 return -EINVAL;
13ae75b1 7047 sband = rdev->wiphy.bands[band];
4c476991
JB		 7048 if (sband == NULL)
7049 return -EINVAL;
13ae75b1
JM		 7050 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7051 nla_len(tx_rates), nl80211_txattr_policy);
7052 if (tb[NL80211_TXRATE_LEGACY]) {
7053 mask.control[band].legacy = rateset_to_mask(
7054 sband,
7055 nla_data(tb[NL80211_TXRATE_LEGACY]),
7056 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7057 if ((mask.control[band].legacy == 0) &&
7058 nla_len(tb[NL80211_TXRATE_LEGACY]))
7059 return -EINVAL;
24db78c0
SW		 7060 }
7061 if (tb[NL80211_TXRATE_MCS]) {
7062 if (!ht_rateset_to_mask(
7063 sband,
7064 nla_data(tb[NL80211_TXRATE_MCS]),
7065 nla_len(tb[NL80211_TXRATE_MCS]),
7066 mask.control[band].mcs))
7067 return -EINVAL;
7068 }
7069
7070 if (mask.control[band].legacy == 0) {
7071 /* don't allow empty legacy rates if HT
7072 * is not even supported. */
7073 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7074 return -EINVAL;
7075
7076 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7077 if (mask.control[band].mcs[i])
7078 break;
7079
7080 /* legacy and mcs rates may not be both empty */
7081 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7082 return -EINVAL;
13ae75b1
JM		 7083 }
7084 }
7085
e35e4d28 7086 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7087}
7088
2e161f78 7089static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7090{
4c476991 7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7092 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7093 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7094
7095 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7096 return -EINVAL;
7097
2e161f78
JB		 7098 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7099 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7100
71bbc994
JB		 7101 switch (wdev->iftype) {
7102 case NL80211_IFTYPE_STATION:
7103 case NL80211_IFTYPE_ADHOC:
7104 case NL80211_IFTYPE_P2P_CLIENT:
7105 case NL80211_IFTYPE_AP:
7106 case NL80211_IFTYPE_AP_VLAN:
7107 case NL80211_IFTYPE_MESH_POINT:
7108 case NL80211_IFTYPE_P2P_GO:
98104fde 7109 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7110 break;
7111 default:
4c476991 7112 return -EOPNOTSUPP;
71bbc994 7113 }
026331c4
JM		 7114
7115 /* not much point in registering if we can't reply */
4c476991
JB		 7116 if (!rdev->ops->mgmt_tx)
7117 return -EOPNOTSUPP;
026331c4 7118
15e47304 7119 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7120 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7121 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7122}
7123
2e161f78 7124static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7125{
4c476991 7126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7127 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7128 struct cfg80211_chan_def chandef;
026331c4 7129 int err;
d64d373f 7130 void *hdr = NULL;
026331c4 7131 u64 cookie;
e247bd90 7132 struct sk_buff *msg = NULL;
f7ca38df 7133 unsigned int wait = 0;
e247bd90
JB		 7134 bool offchan, no_cck, dont_wait_for_ack;
7135
7136 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7137
683b6d3b 7138 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7139 return -EINVAL;
7140
4c476991
JB		 7141 if (!rdev->ops->mgmt_tx)
7142 return -EOPNOTSUPP;
026331c4 7143
71bbc994
JB		 7144 switch (wdev->iftype) {
7145 case NL80211_IFTYPE_STATION:
7146 case NL80211_IFTYPE_ADHOC:
7147 case NL80211_IFTYPE_P2P_CLIENT:
7148 case NL80211_IFTYPE_AP:
7149 case NL80211_IFTYPE_AP_VLAN:
7150 case NL80211_IFTYPE_MESH_POINT:
7151 case NL80211_IFTYPE_P2P_GO:
98104fde 7152 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7153 break;
7154 default:
4c476991 7155 return -EOPNOTSUPP;
71bbc994 7156 }
026331c4 7157
f7ca38df 7158 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7159 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7160 return -EINVAL;
7161 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7162
7163 /*
7164 * We should wait on the channel for at least a minimum amount
7165 * of time (10ms) but no longer than the driver supports.
7166 */
7167 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7168 wait > rdev->wiphy.max_remain_on_channel_duration)
7169 return -EINVAL;
7170
f7ca38df
JB		 7171 }
7172
f7ca38df
JB		 7173 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7174
7c4ef712
JB		 7175 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7176 return -EINVAL;
7177
e9f935e3
RM		 7178 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7179
683b6d3b
JB		 7180 err = nl80211_parse_chandef(rdev, info, &chandef);
7181 if (err)
7182 return err;
026331c4 7183
e247bd90
JB		 7184 if (!dont_wait_for_ack) {
7185 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7186 if (!msg)
7187 return -ENOMEM;
026331c4 7188
15e47304 7189 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7190 NL80211_CMD_FRAME);
026331c4 7191
e247bd90
JB		 7192 if (IS_ERR(hdr)) {
7193 err = PTR_ERR(hdr);
7194 goto free_msg;
7195 }
026331c4 7196 }
e247bd90 7197
683b6d3b 7198 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7199 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7200 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7201 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7202 if (err)
7203 goto free_msg;
7204
e247bd90 7205 if (msg) {
9360ffd1
DM		 7206 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7207 goto nla_put_failure;
026331c4 7208
e247bd90
JB		 7209 genlmsg_end(msg, hdr);
7210 return genlmsg_reply(msg, info);
7211 }
7212
7213 return 0;
026331c4
JM		 7214
7215 nla_put_failure:
7216 err = -ENOBUFS;
7217 free_msg:
7218 nlmsg_free(msg);
026331c4
JM		 7219 return err;
7220}
7221
f7ca38df
JB		 7222static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7223{
7224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7225 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7226 u64 cookie;
7227
7228 if (!info->attrs[NL80211_ATTR_COOKIE])
7229 return -EINVAL;
7230
7231 if (!rdev->ops->mgmt_tx_cancel_wait)
7232 return -EOPNOTSUPP;
7233
71bbc994
JB		 7234 switch (wdev->iftype) {
7235 case NL80211_IFTYPE_STATION:
7236 case NL80211_IFTYPE_ADHOC:
7237 case NL80211_IFTYPE_P2P_CLIENT:
7238 case NL80211_IFTYPE_AP:
7239 case NL80211_IFTYPE_AP_VLAN:
7240 case NL80211_IFTYPE_P2P_GO:
98104fde 7241 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7242 break;
7243 default:
f7ca38df 7244 return -EOPNOTSUPP;
71bbc994 7245 }
f7ca38df
JB		 7246
7247 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7248
e35e4d28 7249 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7250}
7251
ffb9eb3d
KV		 7252static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7253{
4c476991 7254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7255 struct wireless_dev *wdev;
4c476991 7256 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7257 u8 ps_state;
7258 bool state;
7259 int err;
7260
4c476991
JB		 7261 if (!info->attrs[NL80211_ATTR_PS_STATE])
7262 return -EINVAL;
ffb9eb3d
KV		 7263
7264 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7265
4c476991
JB		 7266 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7267 return -EINVAL;
ffb9eb3d
KV		 7268
7269 wdev = dev->ieee80211_ptr;
7270
4c476991
JB		 7271 if (!rdev->ops->set_power_mgmt)
7272 return -EOPNOTSUPP;
ffb9eb3d
KV		 7273
7274 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7275
7276 if (state == wdev->ps)
4c476991 7277 return 0;
ffb9eb3d 7278
e35e4d28 7279 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7280 if (!err)
7281 wdev->ps = state;
ffb9eb3d
KV		 7282 return err;
7283}
7284
7285static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7286{
4c476991 7287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7288 enum nl80211_ps_state ps_state;
7289 struct wireless_dev *wdev;
4c476991 7290 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7291 struct sk_buff *msg;
7292 void *hdr;
7293 int err;
7294
ffb9eb3d
KV		 7295 wdev = dev->ieee80211_ptr;
7296
4c476991
JB		 7297 if (!rdev->ops->set_power_mgmt)
7298 return -EOPNOTSUPP;
ffb9eb3d
KV		 7299
7300 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7301 if (!msg)
7302 return -ENOMEM;
ffb9eb3d 7303
15e47304 7304 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7305 NL80211_CMD_GET_POWER_SAVE);
7306 if (!hdr) {
4c476991 7307 err = -ENOBUFS;
ffb9eb3d
KV		 7308 goto free_msg;
7309 }
7310
7311 if (wdev->ps)
7312 ps_state = NL80211_PS_ENABLED;
7313 else
7314 ps_state = NL80211_PS_DISABLED;
7315
9360ffd1
DM		 7316 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7317 goto nla_put_failure;
ffb9eb3d
KV		 7318
7319 genlmsg_end(msg, hdr);
4c476991 7320 return genlmsg_reply(msg, info);
ffb9eb3d 7321
4c476991 7322 nla_put_failure:
ffb9eb3d 7323 err = -ENOBUFS;
4c476991 7324 free_msg:
ffb9eb3d 7325 nlmsg_free(msg);
ffb9eb3d
KV		 7326 return err;
7327}
7328
d6dc1a38
JO		 7329static struct nla_policy
7330nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7331 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7332 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7333 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7334 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7335 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7336 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7337};
7338
84f10708 7339static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7340 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7341{
7342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7343 struct wireless_dev *wdev;
7344 struct net_device *dev = info->user_ptr[1];
7345
d9d8b019 7346 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7347 return -EINVAL;
7348
7349 wdev = dev->ieee80211_ptr;
7350
7351 if (!rdev->ops->set_cqm_txe_config)
7352 return -EOPNOTSUPP;
7353
7354 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7355 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7356 return -EOPNOTSUPP;
7357
e35e4d28 7358 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7359}
7360
d6dc1a38
JO		 7361static int nl80211_set_cqm_rssi(struct genl_info *info,
7362 s32 threshold, u32 hysteresis)
7363{
4c476991 7364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7365 struct wireless_dev *wdev;
4c476991 7366 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7367
7368 if (threshold > 0)
7369 return -EINVAL;
7370
d6dc1a38
JO		 7371 wdev = dev->ieee80211_ptr;
7372
4c476991
JB		 7373 if (!rdev->ops->set_cqm_rssi_config)
7374 return -EOPNOTSUPP;
d6dc1a38 7375
074ac8df 7376 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7377 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7378 return -EOPNOTSUPP;
d6dc1a38 7379
e35e4d28 7380 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7381}
7382
7383static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7384{
7385 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7386 struct nlattr *cqm;
7387 int err;
7388
7389 cqm = info->attrs[NL80211_ATTR_CQM];
7390 if (!cqm) {
7391 err = -EINVAL;
7392 goto out;
7393 }
7394
7395 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7396 nl80211_attr_cqm_policy);
7397 if (err)
7398 goto out;
7399
7400 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7401 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7402 s32 threshold;
7403 u32 hysteresis;
7404 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7405 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7406 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7407 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7408 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7409 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7410 u32 rate, pkts, intvl;
7411 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7412 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7413 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7414 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7415 } else
7416 err = -EINVAL;
7417
7418out:
7419 return err;
7420}
7421
29cbe68c
JB		 7422static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7423{
7424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7425 struct net_device *dev = info->user_ptr[1];
7426 struct mesh_config cfg;
c80d545d 7427 struct mesh_setup setup;
29cbe68c
JB		 7428 int err;
7429
7430 /* start with default */
7431 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7432 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7433
24bdd9f4 7434 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7435 /* and parse parameters if given */
24bdd9f4 7436 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7437 if (err)
7438 return err;
7439 }
7440
7441 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7442 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7443 return -EINVAL;
7444
c80d545d
JC		 7445 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7446 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7447
4bb62344
CYY		 7448 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7449 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7450 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7451 return -EINVAL;
7452
9bdbf04d
MP		 7453 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7454 setup.beacon_interval =
7455 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7456 if (setup.beacon_interval < 10 ||
7457 setup.beacon_interval > 10000)
7458 return -EINVAL;
7459 }
7460
7461 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7462 setup.dtim_period =
7463 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7464 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7465 return -EINVAL;
7466 }
7467
c80d545d
JC		 7468 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7469 /* parse additional setup parameters if given */
7470 err = nl80211_parse_mesh_setup(info, &setup);
7471 if (err)
7472 return err;
7473 }
7474
d37bb18a
TP		 7475 if (setup.user_mpm)
7476 cfg.auto_open_plinks = false;
7477
cc1d2806 7478 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7479 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7480 if (err)
7481 return err;
cc1d2806
JB		 7482 } else {
7483 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7484 setup.chandef.chan = NULL;
cc1d2806
JB		 7485 }
7486
c80d545d 7487 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7488}
7489
7490static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7491{
7492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7493 struct net_device *dev = info->user_ptr[1];
7494
7495 return cfg80211_leave_mesh(rdev, dev);
7496}
7497
dfb89c56 7498#ifdef CONFIG_PM
bb92d199
AK		 7499static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7500 struct cfg80211_registered_device *rdev)
7501{
6abb9cb9 7502 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7503 struct nlattr *nl_pats, *nl_pat;
7504 int i, pat_len;
7505
6abb9cb9 7506 if (!wowlan->n_patterns)
bb92d199
AK		 7507 return 0;
7508
7509 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7510 if (!nl_pats)
7511 return -ENOBUFS;
7512
6abb9cb9 7513 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7514 nl_pat = nla_nest_start(msg, i + 1);
7515 if (!nl_pat)
7516 return -ENOBUFS;
6abb9cb9 7517 pat_len = wowlan->patterns[i].pattern_len;
bb92d199
AK		 7518 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7519 DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7520 wowlan->patterns[i].mask) ||
bb92d199 7521 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6abb9cb9 7522 pat_len, wowlan->patterns[i].pattern) ||
bb92d199 7523 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
6abb9cb9 7524 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7525 return -ENOBUFS;
7526 nla_nest_end(msg, nl_pat);
7527 }
7528 nla_nest_end(msg, nl_pats);
7529
7530 return 0;
7531}
7532
2a0e047e
JB		 7533static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7534 struct cfg80211_wowlan_tcp *tcp)
7535{
7536 struct nlattr *nl_tcp;
7537
7538 if (!tcp)
7539 return 0;
7540
7541 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7542 if (!nl_tcp)
7543 return -ENOBUFS;
7544
7545 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7546 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7547 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7548 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7549 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7550 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7551 tcp->payload_len, tcp->payload) ||
7552 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7553 tcp->data_interval) ||
7554 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7555 tcp->wake_len, tcp->wake_data) ||
7556 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7557 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7558 return -ENOBUFS;
7559
7560 if (tcp->payload_seq.len &&
7561 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7562 sizeof(tcp->payload_seq), &tcp->payload_seq))
7563 return -ENOBUFS;
7564
7565 if (tcp->payload_tok.len &&
7566 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7567 sizeof(tcp->payload_tok) + tcp->tokens_size,
7568 &tcp->payload_tok))
7569 return -ENOBUFS;
7570
e248ad30
JB		 7571 nla_nest_end(msg, nl_tcp);
7572
2a0e047e
JB		 7573 return 0;
7574}
7575
ff1b6e69
JB		 7576static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7577{
7578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7579 struct sk_buff *msg;
7580 void *hdr;
2a0e047e 7581 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7582
964dc9e2 7583 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7584 return -EOPNOTSUPP;
7585
6abb9cb9 7586 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7587 /* adjust size to have room for all the data */
6abb9cb9
JB		 7588 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7589 rdev->wiphy.wowlan_config->tcp->payload_len +
7590 rdev->wiphy.wowlan_config->tcp->wake_len +
7591 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7592 }
7593
7594 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7595 if (!msg)
7596 return -ENOMEM;
7597
15e47304 7598 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7599 NL80211_CMD_GET_WOWLAN);
7600 if (!hdr)
7601 goto nla_put_failure;
7602
6abb9cb9 7603 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7604 struct nlattr *nl_wowlan;
7605
7606 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7607 if (!nl_wowlan)
7608 goto nla_put_failure;
7609
6abb9cb9 7610 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7611 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7612 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7613 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7614 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7615 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7616 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7617 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7618 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7620 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7622 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7623 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7624 goto nla_put_failure;
2a0e047e 7625
bb92d199
AK		 7626 if (nl80211_send_wowlan_patterns(msg, rdev))
7627 goto nla_put_failure;
2a0e047e 7628
6abb9cb9
JB		 7629 if (nl80211_send_wowlan_tcp(msg,
7630 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7631 goto nla_put_failure;
7632
ff1b6e69
JB		 7633 nla_nest_end(msg, nl_wowlan);
7634 }
7635
7636 genlmsg_end(msg, hdr);
7637 return genlmsg_reply(msg, info);
7638
7639nla_put_failure:
7640 nlmsg_free(msg);
7641 return -ENOBUFS;
7642}
7643
2a0e047e
JB		 7644static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7645 struct nlattr *attr,
7646 struct cfg80211_wowlan *trig)
7647{
7648 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7649 struct cfg80211_wowlan_tcp *cfg;
7650 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7651 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7652 u32 size;
7653 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7654 int err, port;
7655
964dc9e2 7656 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7657 return -EINVAL;
7658
7659 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7660 nla_data(attr), nla_len(attr),
7661 nl80211_wowlan_tcp_policy);
7662 if (err)
7663 return err;
7664
7665 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7666 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7667 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7668 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7669 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7670 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7671 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7672 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7673 return -EINVAL;
7674
7675 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 7676 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 7677 return -EINVAL;
7678
7679 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 7680 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 7681 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7682 return -EINVAL;
7683
7684 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 7685 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 7686 return -EINVAL;
7687
7688 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7689 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7690 return -EINVAL;
7691
7692 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7693 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7694
7695 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7696 tokens_size = tokln - sizeof(*tok);
7697
7698 if (!tok->len || tokens_size % tok->len)
7699 return -EINVAL;
964dc9e2 7700 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 7701 return -EINVAL;
964dc9e2 7702 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 7703 return -EINVAL;
964dc9e2 7704 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 7705 return -EINVAL;
964dc9e2 7706 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 7707 return -EINVAL;
7708 if (tok->offset + tok->len > data_size)
7709 return -EINVAL;
7710 }
7711
7712 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7713 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 7714 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 7715 return -EINVAL;
7716 if (seq->len == 0 || seq->len > 4)
7717 return -EINVAL;
7718 if (seq->len + seq->offset > data_size)
7719 return -EINVAL;
7720 }
7721
7722 size = sizeof(*cfg);
7723 size += data_size;
7724 size += wake_size + wake_mask_size;
7725 size += tokens_size;
7726
7727 cfg = kzalloc(size, GFP_KERNEL);
7728 if (!cfg)
7729 return -ENOMEM;
7730 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7731 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7732 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7733 ETH_ALEN);
7734 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7735 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7736 else
7737 port = 0;
7738#ifdef CONFIG_INET
7739 /* allocate a socket and port for it and use it */
7740 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7741 IPPROTO_TCP, &cfg->sock, 1);
7742 if (err) {
7743 kfree(cfg);
7744 return err;
7745 }
7746 if (inet_csk_get_port(cfg->sock->sk, port)) {
7747 sock_release(cfg->sock);
7748 kfree(cfg);
7749 return -EADDRINUSE;
7750 }
7751 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7752#else
7753 if (!port) {
7754 kfree(cfg);
7755 return -EINVAL;
7756 }
7757 cfg->src_port = port;
7758#endif
7759
7760 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7761 cfg->payload_len = data_size;
7762 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7763 memcpy((void *)cfg->payload,
7764 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7765 data_size);
7766 if (seq)
7767 cfg->payload_seq = *seq;
7768 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7769 cfg->wake_len = wake_size;
7770 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7771 memcpy((void *)cfg->wake_data,
7772 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7773 wake_size);
7774 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7775 data_size + wake_size;
7776 memcpy((void *)cfg->wake_mask,
7777 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7778 wake_mask_size);
7779 if (tok) {
7780 cfg->tokens_size = tokens_size;
7781 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7782 }
7783
7784 trig->tcp = cfg;
7785
7786 return 0;
7787}
7788
ff1b6e69
JB		 7789static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7790{
7791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7792 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7793 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7794 struct cfg80211_wowlan *ntrig;
964dc9e2 7795 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 7796 int err, i;
6abb9cb9 7797 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 7798
964dc9e2 7799 if (!wowlan)
ff1b6e69
JB		 7800 return -EOPNOTSUPP;
7801
ae33bd81
JB		 7802 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7803 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7804 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 7805 goto set_wakeup;
7806 }
ff1b6e69
JB		 7807
7808 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7809 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7810 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7811 nl80211_wowlan_policy);
7812 if (err)
7813 return err;
7814
7815 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7816 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7817 return -EINVAL;
7818 new_triggers.any = true;
7819 }
7820
7821 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7822 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7823 return -EINVAL;
7824 new_triggers.disconnect = true;
7825 }
7826
7827 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7828 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7829 return -EINVAL;
7830 new_triggers.magic_pkt = true;
7831 }
7832
77dbbb13
JB		 7833 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7834 return -EINVAL;
7835
7836 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7837 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7838 return -EINVAL;
7839 new_triggers.gtk_rekey_failure = true;
7840 }
7841
7842 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7843 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7844 return -EINVAL;
7845 new_triggers.eap_identity_req = true;
7846 }
7847
7848 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7849 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7850 return -EINVAL;
7851 new_triggers.four_way_handshake = true;
7852 }
7853
7854 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7855 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7856 return -EINVAL;
7857 new_triggers.rfkill_release = true;
7858 }
7859
ff1b6e69
JB		 7860 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7861 struct nlattr *pat;
7862 int n_patterns = 0;
bb92d199 7863 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7864 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7865
7866 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7867 rem)
7868 n_patterns++;
7869 if (n_patterns > wowlan->n_patterns)
7870 return -EINVAL;
7871
7872 new_triggers.patterns = kcalloc(n_patterns,
7873 sizeof(new_triggers.patterns[0]),
7874 GFP_KERNEL);
7875 if (!new_triggers.patterns)
7876 return -ENOMEM;
7877
7878 new_triggers.n_patterns = n_patterns;
7879 i = 0;
7880
7881 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7882 rem) {
7883 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7884 nla_data(pat), nla_len(pat), NULL);
7885 err = -EINVAL;
7886 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7887 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7888 goto error;
7889 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7890 mask_len = DIV_ROUND_UP(pat_len, 8);
7891 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7892 mask_len)
7893 goto error;
7894 if (pat_len > wowlan->pattern_max_len ||
7895 pat_len < wowlan->pattern_min_len)
7896 goto error;
7897
bb92d199
AK		 7898 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7899 pkt_offset = 0;
7900 else
7901 pkt_offset = nla_get_u32(
7902 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7903 if (pkt_offset > wowlan->max_pkt_offset)
7904 goto error;
7905 new_triggers.patterns[i].pkt_offset = pkt_offset;
7906
ff1b6e69
JB		 7907 new_triggers.patterns[i].mask =
7908 kmalloc(mask_len + pat_len, GFP_KERNEL);
7909 if (!new_triggers.patterns[i].mask) {
7910 err = -ENOMEM;
7911 goto error;
7912 }
7913 new_triggers.patterns[i].pattern =
7914 new_triggers.patterns[i].mask + mask_len;
7915 memcpy(new_triggers.patterns[i].mask,
7916 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7917 mask_len);
7918 new_triggers.patterns[i].pattern_len = pat_len;
7919 memcpy(new_triggers.patterns[i].pattern,
7920 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7921 pat_len);
7922 i++;
7923 }
7924 }
7925
2a0e047e
JB		 7926 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7927 err = nl80211_parse_wowlan_tcp(
7928 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7929 &new_triggers);
7930 if (err)
7931 goto error;
7932 }
7933
ae33bd81
JB		 7934 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7935 if (!ntrig) {
7936 err = -ENOMEM;
7937 goto error;
ff1b6e69 7938 }
ae33bd81 7939 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7940 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 7941
ae33bd81 7942 set_wakeup:
6abb9cb9
JB		 7943 if (rdev->ops->set_wakeup &&
7944 prev_enabled != !!rdev->wiphy.wowlan_config)
7945 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 7946
ff1b6e69
JB		 7947 return 0;
7948 error:
7949 for (i = 0; i < new_triggers.n_patterns; i++)
7950 kfree(new_triggers.patterns[i].mask);
7951 kfree(new_triggers.patterns);
2a0e047e
JB		 7952 if (new_triggers.tcp && new_triggers.tcp->sock)
7953 sock_release(new_triggers.tcp->sock);
7954 kfree(new_triggers.tcp);
ff1b6e69
JB		 7955 return err;
7956}
dfb89c56 7957#endif
ff1b6e69 7958
e5497d76
JB		 7959static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7960{
7961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7962 struct net_device *dev = info->user_ptr[1];
7963 struct wireless_dev *wdev = dev->ieee80211_ptr;
7964 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7965 struct cfg80211_gtk_rekey_data rekey_data;
7966 int err;
7967
7968 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7969 return -EINVAL;
7970
7971 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7972 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7973 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7974 nl80211_rekey_policy);
7975 if (err)
7976 return err;
7977
7978 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7979 return -ERANGE;
7980 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7981 return -ERANGE;
7982 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7983 return -ERANGE;
7984
7985 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7986 NL80211_KEK_LEN);
7987 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7988 NL80211_KCK_LEN);
7989 memcpy(rekey_data.replay_ctr,
7990 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7991 NL80211_REPLAY_CTR_LEN);
7992
7993 wdev_lock(wdev);
7994 if (!wdev->current_bss) {
7995 err = -ENOTCONN;
7996 goto out;
7997 }
7998
7999 if (!rdev->ops->set_rekey_data) {
8000 err = -EOPNOTSUPP;
8001 goto out;
8002 }
8003
e35e4d28 8004 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8005 out:
8006 wdev_unlock(wdev);
8007 return err;
8008}
8009
28946da7
JB		 8010static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8011 struct genl_info *info)
8012{
8013 struct net_device *dev = info->user_ptr[1];
8014 struct wireless_dev *wdev = dev->ieee80211_ptr;
8015
8016 if (wdev->iftype != NL80211_IFTYPE_AP &&
8017 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8018 return -EINVAL;
8019
15e47304 8020 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8021 return -EBUSY;
8022
15e47304 8023 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8024 return 0;
8025}
8026
7f6cf311
JB		 8027static int nl80211_probe_client(struct sk_buff *skb,
8028 struct genl_info *info)
8029{
8030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8031 struct net_device *dev = info->user_ptr[1];
8032 struct wireless_dev *wdev = dev->ieee80211_ptr;
8033 struct sk_buff *msg;
8034 void *hdr;
8035 const u8 *addr;
8036 u64 cookie;
8037 int err;
8038
8039 if (wdev->iftype != NL80211_IFTYPE_AP &&
8040 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8041 return -EOPNOTSUPP;
8042
8043 if (!info->attrs[NL80211_ATTR_MAC])
8044 return -EINVAL;
8045
8046 if (!rdev->ops->probe_client)
8047 return -EOPNOTSUPP;
8048
8049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8050 if (!msg)
8051 return -ENOMEM;
8052
15e47304 8053 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8054 NL80211_CMD_PROBE_CLIENT);
8055
8056 if (IS_ERR(hdr)) {
8057 err = PTR_ERR(hdr);
8058 goto free_msg;
8059 }
8060
8061 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8062
e35e4d28 8063 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8064 if (err)
8065 goto free_msg;
8066
9360ffd1
DM		 8067 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8068 goto nla_put_failure;
7f6cf311
JB		 8069
8070 genlmsg_end(msg, hdr);
8071
8072 return genlmsg_reply(msg, info);
8073
8074 nla_put_failure:
8075 err = -ENOBUFS;
8076 free_msg:
8077 nlmsg_free(msg);
8078 return err;
8079}
8080
5e760230
JB		 8081static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8082{
8083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8084 struct cfg80211_beacon_registration *reg, *nreg;
8085 int rv;
5e760230
JB		 8086
8087 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8088 return -EOPNOTSUPP;
8089
37c73b5f
BG		 8090 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8091 if (!nreg)
8092 return -ENOMEM;
8093
8094 /* First, check if already registered. */
8095 spin_lock_bh(&rdev->beacon_registrations_lock);
8096 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8097 if (reg->nlportid == info->snd_portid) {
8098 rv = -EALREADY;
8099 goto out_err;
8100 }
8101 }
8102 /* Add it to the list */
8103 nreg->nlportid = info->snd_portid;
8104 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8105
37c73b5f 8106 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8107
8108 return 0;
37c73b5f
BG		 8109out_err:
8110 spin_unlock_bh(&rdev->beacon_registrations_lock);
8111 kfree(nreg);
8112 return rv;
5e760230
JB		 8113}
8114
98104fde
JB		 8115static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8116{
8117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8118 struct wireless_dev *wdev = info->user_ptr[1];
8119 int err;
8120
8121 if (!rdev->ops->start_p2p_device)
8122 return -EOPNOTSUPP;
8123
8124 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8125 return -EOPNOTSUPP;
8126
8127 if (wdev->p2p_started)
8128 return 0;
8129
98104fde 8130 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8131 if (err)
8132 return err;
8133
eeb126e9 8134 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8135 if (err)
8136 return err;
8137
8138 wdev->p2p_started = true;
98104fde 8139 rdev->opencount++;
98104fde
JB		 8140
8141 return 0;
8142}
8143
8144static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8145{
8146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8147 struct wireless_dev *wdev = info->user_ptr[1];
8148
8149 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8150 return -EOPNOTSUPP;
8151
8152 if (!rdev->ops->stop_p2p_device)
8153 return -EOPNOTSUPP;
8154
f9f47529 8155 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8156
8157 return 0;
8158}
8159
3713b4e3
JB		 8160static int nl80211_get_protocol_features(struct sk_buff *skb,
8161 struct genl_info *info)
8162{
8163 void *hdr;
8164 struct sk_buff *msg;
8165
8166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8167 if (!msg)
8168 return -ENOMEM;
8169
8170 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8171 NL80211_CMD_GET_PROTOCOL_FEATURES);
8172 if (!hdr)
8173 goto nla_put_failure;
8174
8175 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8176 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8177 goto nla_put_failure;
8178
8179 genlmsg_end(msg, hdr);
8180 return genlmsg_reply(msg, info);
8181
8182 nla_put_failure:
8183 kfree_skb(msg);
8184 return -ENOBUFS;
8185}
8186
355199e0
JM		 8187static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8188{
8189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8190 struct cfg80211_update_ft_ies_params ft_params;
8191 struct net_device *dev = info->user_ptr[1];
8192
8193 if (!rdev->ops->update_ft_ies)
8194 return -EOPNOTSUPP;
8195
8196 if (!info->attrs[NL80211_ATTR_MDID] ||
8197 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8198 return -EINVAL;
8199
8200 memset(&ft_params, 0, sizeof(ft_params));
8201 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8202 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8203 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8204
8205 return rdev_update_ft_ies(rdev, dev, &ft_params);
8206}
8207
5de17984
AS		 8208static int nl80211_crit_protocol_start(struct sk_buff *skb,
8209 struct genl_info *info)
8210{
8211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8212 struct wireless_dev *wdev = info->user_ptr[1];
8213 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8214 u16 duration;
8215 int ret;
8216
8217 if (!rdev->ops->crit_proto_start)
8218 return -EOPNOTSUPP;
8219
8220 if (WARN_ON(!rdev->ops->crit_proto_stop))
8221 return -EINVAL;
8222
8223 if (rdev->crit_proto_nlportid)
8224 return -EBUSY;
8225
8226 /* determine protocol if provided */
8227 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8228 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8229
8230 if (proto >= NUM_NL80211_CRIT_PROTO)
8231 return -EINVAL;
8232
8233 /* timeout must be provided */
8234 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8235 return -EINVAL;
8236
8237 duration =
8238 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8239
8240 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8241 return -ERANGE;
8242
8243 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8244 if (!ret)
8245 rdev->crit_proto_nlportid = info->snd_portid;
8246
8247 return ret;
8248}
8249
8250static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8251 struct genl_info *info)
8252{
8253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8254 struct wireless_dev *wdev = info->user_ptr[1];
8255
8256 if (!rdev->ops->crit_proto_stop)
8257 return -EOPNOTSUPP;
8258
8259 if (rdev->crit_proto_nlportid) {
8260 rdev->crit_proto_nlportid = 0;
8261 rdev_crit_proto_stop(rdev, wdev);
8262 }
8263 return 0;
8264}
8265
4c476991
JB		 8266#define NL80211_FLAG_NEED_WIPHY 0x01
8267#define NL80211_FLAG_NEED_NETDEV 0x02
8268#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8269#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8270#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8271 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8272#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8273/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8274#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8275 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8276
8277static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8278 struct genl_info *info)
8279{
8280 struct cfg80211_registered_device *rdev;
89a54e48 8281 struct wireless_dev *wdev;
4c476991 8282 struct net_device *dev;
4c476991
JB		 8283 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8284
8285 if (rtnl)
8286 rtnl_lock();
8287
8288 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8289 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8290 if (IS_ERR(rdev)) {
8291 if (rtnl)
8292 rtnl_unlock();
8293 return PTR_ERR(rdev);
8294 }
8295 info->user_ptr[0] = rdev;
1bf614ef
JB		 8296 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8297 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8298 ASSERT_RTNL();
8299
89a54e48
JB		 8300 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8301 info->attrs);
8302 if (IS_ERR(wdev)) {
4c476991
JB		 8303 if (rtnl)
8304 rtnl_unlock();
89a54e48 8305 return PTR_ERR(wdev);
4c476991 8306 }
89a54e48 8307
89a54e48
JB		 8308 dev = wdev->netdev;
8309 rdev = wiphy_to_dev(wdev->wiphy);
8310
1bf614ef
JB		 8311 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8312 if (!dev) {
1bf614ef
JB		 8313 if (rtnl)
8314 rtnl_unlock();
8315 return -EINVAL;
8316 }
8317
8318 info->user_ptr[1] = dev;
8319 } else {
8320 info->user_ptr[1] = wdev;
41265714 8321 }
1bf614ef
JB		 8322
8323 if (dev) {
8324 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8325 !netif_running(dev)) {
1bf614ef
JB		 8326 if (rtnl)
8327 rtnl_unlock();
8328 return -ENETDOWN;
8329 }
8330
8331 dev_hold(dev);
98104fde
JB		 8332 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8333 if (!wdev->p2p_started) {
98104fde
JB		 8334 if (rtnl)
8335 rtnl_unlock();
8336 return -ENETDOWN;
8337 }
41265714 8338 }
89a54e48 8339
4c476991 8340 info->user_ptr[0] = rdev;
4c476991
JB		 8341 }
8342
8343 return 0;
8344}
8345
8346static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8347 struct genl_info *info)
8348{
1bf614ef
JB		 8349 if (info->user_ptr[1]) {
8350 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8351 struct wireless_dev *wdev = info->user_ptr[1];
8352
8353 if (wdev->netdev)
8354 dev_put(wdev->netdev);
8355 } else {
8356 dev_put(info->user_ptr[1]);
8357 }
8358 }
4c476991
JB		 8359 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8360 rtnl_unlock();
8361}
8362
55682965
JB		 8363static struct genl_ops nl80211_ops[] = {
8364 {
8365 .cmd = NL80211_CMD_GET_WIPHY,
8366 .doit = nl80211_get_wiphy,
8367 .dumpit = nl80211_dump_wiphy,
8368 .policy = nl80211_policy,
8369 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8370 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8371 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8372 },
8373 {
8374 .cmd = NL80211_CMD_SET_WIPHY,
8375 .doit = nl80211_set_wiphy,
8376 .policy = nl80211_policy,
8377 .flags = GENL_ADMIN_PERM,
4c476991 8378 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8379 },
8380 {
8381 .cmd = NL80211_CMD_GET_INTERFACE,
8382 .doit = nl80211_get_interface,
8383 .dumpit = nl80211_dump_interface,
8384 .policy = nl80211_policy,
8385 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8386 .internal_flags = NL80211_FLAG_NEED_WDEV |
8387 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8388 },
8389 {
8390 .cmd = NL80211_CMD_SET_INTERFACE,
8391 .doit = nl80211_set_interface,
8392 .policy = nl80211_policy,
8393 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8394 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8395 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8396 },
8397 {
8398 .cmd = NL80211_CMD_NEW_INTERFACE,
8399 .doit = nl80211_new_interface,
8400 .policy = nl80211_policy,
8401 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8402 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8403 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8404 },
8405 {
8406 .cmd = NL80211_CMD_DEL_INTERFACE,
8407 .doit = nl80211_del_interface,
8408 .policy = nl80211_policy,
41ade00f 8409 .flags = GENL_ADMIN_PERM,
84efbb84 8410 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8411 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8412 },
8413 {
8414 .cmd = NL80211_CMD_GET_KEY,
8415 .doit = nl80211_get_key,
8416 .policy = nl80211_policy,
8417 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8419 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8420 },
8421 {
8422 .cmd = NL80211_CMD_SET_KEY,
8423 .doit = nl80211_set_key,
8424 .policy = nl80211_policy,
8425 .flags = GENL_ADMIN_PERM,
41265714 8426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8427 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8428 },
8429 {
8430 .cmd = NL80211_CMD_NEW_KEY,
8431 .doit = nl80211_new_key,
8432 .policy = nl80211_policy,
8433 .flags = GENL_ADMIN_PERM,
41265714 8434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8435 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8436 },
8437 {
8438 .cmd = NL80211_CMD_DEL_KEY,
8439 .doit = nl80211_del_key,
8440 .policy = nl80211_policy,
55682965 8441 .flags = GENL_ADMIN_PERM,
41265714 8442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8443 NL80211_FLAG_NEED_RTNL,
55682965 8444 },
ed1b6cc7
JB		 8445 {
8446 .cmd = NL80211_CMD_SET_BEACON,
8447 .policy = nl80211_policy,
8448 .flags = GENL_ADMIN_PERM,
8860020e 8449 .doit = nl80211_set_beacon,
2b5f8b0b 8450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8451 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8452 },
8453 {
8860020e 8454 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8455 .policy = nl80211_policy,
8456 .flags = GENL_ADMIN_PERM,
8860020e 8457 .doit = nl80211_start_ap,
2b5f8b0b 8458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8459 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8460 },
8461 {
8860020e 8462 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8463 .policy = nl80211_policy,
8464 .flags = GENL_ADMIN_PERM,
8860020e 8465 .doit = nl80211_stop_ap,
2b5f8b0b 8466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8467 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8468 },
5727ef1b
JB		 8469 {
8470 .cmd = NL80211_CMD_GET_STATION,
8471 .doit = nl80211_get_station,
2ec600d6 8472 .dumpit = nl80211_dump_station,
5727ef1b 8473 .policy = nl80211_policy,
4c476991
JB		 8474 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8475 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8476 },
8477 {
8478 .cmd = NL80211_CMD_SET_STATION,
8479 .doit = nl80211_set_station,
8480 .policy = nl80211_policy,
8481 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8483 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8484 },
8485 {
8486 .cmd = NL80211_CMD_NEW_STATION,
8487 .doit = nl80211_new_station,
8488 .policy = nl80211_policy,
8489 .flags = GENL_ADMIN_PERM,
41265714 8490 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8491 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8492 },
8493 {
8494 .cmd = NL80211_CMD_DEL_STATION,
8495 .doit = nl80211_del_station,
8496 .policy = nl80211_policy,
2ec600d6 8497 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8498 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8499 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8500 },
8501 {
8502 .cmd = NL80211_CMD_GET_MPATH,
8503 .doit = nl80211_get_mpath,
8504 .dumpit = nl80211_dump_mpath,
8505 .policy = nl80211_policy,
8506 .flags = GENL_ADMIN_PERM,
41265714 8507 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8508 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8509 },
8510 {
8511 .cmd = NL80211_CMD_SET_MPATH,
8512 .doit = nl80211_set_mpath,
8513 .policy = nl80211_policy,
8514 .flags = GENL_ADMIN_PERM,
41265714 8515 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8516 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8517 },
8518 {
8519 .cmd = NL80211_CMD_NEW_MPATH,
8520 .doit = nl80211_new_mpath,
8521 .policy = nl80211_policy,
8522 .flags = GENL_ADMIN_PERM,
41265714 8523 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8524 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8525 },
8526 {
8527 .cmd = NL80211_CMD_DEL_MPATH,
8528 .doit = nl80211_del_mpath,
8529 .policy = nl80211_policy,
9f1ba906 8530 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8532 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8533 },
8534 {
8535 .cmd = NL80211_CMD_SET_BSS,
8536 .doit = nl80211_set_bss,
8537 .policy = nl80211_policy,
b2e1b302 8538 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8540 NL80211_FLAG_NEED_RTNL,
b2e1b302 8541 },
f130347c
LR		 8542 {
8543 .cmd = NL80211_CMD_GET_REG,
8544 .doit = nl80211_get_reg,
8545 .policy = nl80211_policy,
5fe231e8 8546 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 8547 /* can be retrieved by unprivileged users */
8548 },
b2e1b302
LR		 8549 {
8550 .cmd = NL80211_CMD_SET_REG,
8551 .doit = nl80211_set_reg,
8552 .policy = nl80211_policy,
8553 .flags = GENL_ADMIN_PERM,
5fe231e8 8554 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 8555 },
8556 {
8557 .cmd = NL80211_CMD_REQ_SET_REG,
8558 .doit = nl80211_req_set_reg,
8559 .policy = nl80211_policy,
93da9cc1 8560 .flags = GENL_ADMIN_PERM,
8561 },
8562 {
24bdd9f4
JC		 8563 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8564 .doit = nl80211_get_mesh_config,
93da9cc1 8565 .policy = nl80211_policy,
8566 /* can be retrieved by unprivileged users */
2b5f8b0b 8567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8568 NL80211_FLAG_NEED_RTNL,
93da9cc1 8569 },
8570 {
24bdd9f4
JC		 8571 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8572 .doit = nl80211_update_mesh_config,
93da9cc1 8573 .policy = nl80211_policy,
9aed3cc1 8574 .flags = GENL_ADMIN_PERM,
29cbe68c 8575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8576 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8577 },
2a519311
JB		 8578 {
8579 .cmd = NL80211_CMD_TRIGGER_SCAN,
8580 .doit = nl80211_trigger_scan,
8581 .policy = nl80211_policy,
8582 .flags = GENL_ADMIN_PERM,
fd014284 8583 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8584 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8585 },
8586 {
8587 .cmd = NL80211_CMD_GET_SCAN,
8588 .policy = nl80211_policy,
8589 .dumpit = nl80211_dump_scan,
8590 },
807f8a8c
LC		 8591 {
8592 .cmd = NL80211_CMD_START_SCHED_SCAN,
8593 .doit = nl80211_start_sched_scan,
8594 .policy = nl80211_policy,
8595 .flags = GENL_ADMIN_PERM,
8596 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8597 NL80211_FLAG_NEED_RTNL,
8598 },
8599 {
8600 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8601 .doit = nl80211_stop_sched_scan,
8602 .policy = nl80211_policy,
8603 .flags = GENL_ADMIN_PERM,
8604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8605 NL80211_FLAG_NEED_RTNL,
8606 },
636a5d36
JM		 8607 {
8608 .cmd = NL80211_CMD_AUTHENTICATE,
8609 .doit = nl80211_authenticate,
8610 .policy = nl80211_policy,
8611 .flags = GENL_ADMIN_PERM,
41265714 8612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8613 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8614 },
8615 {
8616 .cmd = NL80211_CMD_ASSOCIATE,
8617 .doit = nl80211_associate,
8618 .policy = nl80211_policy,
8619 .flags = GENL_ADMIN_PERM,
41265714 8620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8621 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8622 },
8623 {
8624 .cmd = NL80211_CMD_DEAUTHENTICATE,
8625 .doit = nl80211_deauthenticate,
8626 .policy = nl80211_policy,
8627 .flags = GENL_ADMIN_PERM,
41265714 8628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8629 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8630 },
8631 {
8632 .cmd = NL80211_CMD_DISASSOCIATE,
8633 .doit = nl80211_disassociate,
8634 .policy = nl80211_policy,
8635 .flags = GENL_ADMIN_PERM,
41265714 8636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8637 NL80211_FLAG_NEED_RTNL,
636a5d36 8638 },
04a773ad
JB		 8639 {
8640 .cmd = NL80211_CMD_JOIN_IBSS,
8641 .doit = nl80211_join_ibss,
8642 .policy = nl80211_policy,
8643 .flags = GENL_ADMIN_PERM,
41265714 8644 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8645 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8646 },
8647 {
8648 .cmd = NL80211_CMD_LEAVE_IBSS,
8649 .doit = nl80211_leave_ibss,
8650 .policy = nl80211_policy,
8651 .flags = GENL_ADMIN_PERM,
41265714 8652 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8653 NL80211_FLAG_NEED_RTNL,
04a773ad 8654 },
aff89a9b
JB		 8655#ifdef CONFIG_NL80211_TESTMODE
8656 {
8657 .cmd = NL80211_CMD_TESTMODE,
8658 .doit = nl80211_testmode_do,
71063f0e 8659 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8660 .policy = nl80211_policy,
8661 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8662 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8663 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8664 },
8665#endif
b23aa676
SO		 8666 {
8667 .cmd = NL80211_CMD_CONNECT,
8668 .doit = nl80211_connect,
8669 .policy = nl80211_policy,
8670 .flags = GENL_ADMIN_PERM,
41265714 8671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8672 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8673 },
8674 {
8675 .cmd = NL80211_CMD_DISCONNECT,
8676 .doit = nl80211_disconnect,
8677 .policy = nl80211_policy,
8678 .flags = GENL_ADMIN_PERM,
41265714 8679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8680 NL80211_FLAG_NEED_RTNL,
b23aa676 8681 },
463d0183
JB		 8682 {
8683 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8684 .doit = nl80211_wiphy_netns,
8685 .policy = nl80211_policy,
8686 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8687 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8688 NL80211_FLAG_NEED_RTNL,
463d0183 8689 },
61fa713c
HS		 8690 {
8691 .cmd = NL80211_CMD_GET_SURVEY,
8692 .policy = nl80211_policy,
8693 .dumpit = nl80211_dump_survey,
8694 },
67fbb16b
SO		 8695 {
8696 .cmd = NL80211_CMD_SET_PMKSA,
8697 .doit = nl80211_setdel_pmksa,
8698 .policy = nl80211_policy,
8699 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8700 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8701 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8702 },
8703 {
8704 .cmd = NL80211_CMD_DEL_PMKSA,
8705 .doit = nl80211_setdel_pmksa,
8706 .policy = nl80211_policy,
8707 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8709 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8710 },
8711 {
8712 .cmd = NL80211_CMD_FLUSH_PMKSA,
8713 .doit = nl80211_flush_pmksa,
8714 .policy = nl80211_policy,
8715 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8717 NL80211_FLAG_NEED_RTNL,
67fbb16b 8718 },
9588bbd5
JM		 8719 {
8720 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8721 .doit = nl80211_remain_on_channel,
8722 .policy = nl80211_policy,
8723 .flags = GENL_ADMIN_PERM,
71bbc994 8724 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8725 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8726 },
8727 {
8728 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8729 .doit = nl80211_cancel_remain_on_channel,
8730 .policy = nl80211_policy,
8731 .flags = GENL_ADMIN_PERM,
71bbc994 8732 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8733 NL80211_FLAG_NEED_RTNL,
9588bbd5 8734 },
13ae75b1
JM		 8735 {
8736 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8737 .doit = nl80211_set_tx_bitrate_mask,
8738 .policy = nl80211_policy,
8739 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8740 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8741 NL80211_FLAG_NEED_RTNL,
13ae75b1 8742 },
026331c4 8743 {
2e161f78
JB		 8744 .cmd = NL80211_CMD_REGISTER_FRAME,
8745 .doit = nl80211_register_mgmt,
026331c4
JM		 8746 .policy = nl80211_policy,
8747 .flags = GENL_ADMIN_PERM,
71bbc994 8748 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8749 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8750 },
8751 {
2e161f78
JB		 8752 .cmd = NL80211_CMD_FRAME,
8753 .doit = nl80211_tx_mgmt,
026331c4 8754 .policy = nl80211_policy,
f7ca38df 8755 .flags = GENL_ADMIN_PERM,
71bbc994 8756 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8757 NL80211_FLAG_NEED_RTNL,
8758 },
8759 {
8760 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8761 .doit = nl80211_tx_mgmt_cancel_wait,
8762 .policy = nl80211_policy,
026331c4 8763 .flags = GENL_ADMIN_PERM,
71bbc994 8764 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8765 NL80211_FLAG_NEED_RTNL,
026331c4 8766 },
ffb9eb3d
KV		 8767 {
8768 .cmd = NL80211_CMD_SET_POWER_SAVE,
8769 .doit = nl80211_set_power_save,
8770 .policy = nl80211_policy,
8771 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8772 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8773 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8774 },
8775 {
8776 .cmd = NL80211_CMD_GET_POWER_SAVE,
8777 .doit = nl80211_get_power_save,
8778 .policy = nl80211_policy,
8779 /* can be retrieved by unprivileged users */
4c476991
JB		 8780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8781 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8782 },
d6dc1a38
JO		 8783 {
8784 .cmd = NL80211_CMD_SET_CQM,
8785 .doit = nl80211_set_cqm,
8786 .policy = nl80211_policy,
8787 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8788 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8789 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8790 },
f444de05
JB		 8791 {
8792 .cmd = NL80211_CMD_SET_CHANNEL,
8793 .doit = nl80211_set_channel,
8794 .policy = nl80211_policy,
8795 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8796 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8797 NL80211_FLAG_NEED_RTNL,
f444de05 8798 },
e8347eba
BJ		 8799 {
8800 .cmd = NL80211_CMD_SET_WDS_PEER,
8801 .doit = nl80211_set_wds_peer,
8802 .policy = nl80211_policy,
8803 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8804 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8805 NL80211_FLAG_NEED_RTNL,
e8347eba 8806 },
29cbe68c
JB		 8807 {
8808 .cmd = NL80211_CMD_JOIN_MESH,
8809 .doit = nl80211_join_mesh,
8810 .policy = nl80211_policy,
8811 .flags = GENL_ADMIN_PERM,
8812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8813 NL80211_FLAG_NEED_RTNL,
8814 },
8815 {
8816 .cmd = NL80211_CMD_LEAVE_MESH,
8817 .doit = nl80211_leave_mesh,
8818 .policy = nl80211_policy,
8819 .flags = GENL_ADMIN_PERM,
8820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8821 NL80211_FLAG_NEED_RTNL,
8822 },
dfb89c56 8823#ifdef CONFIG_PM
ff1b6e69
JB		 8824 {
8825 .cmd = NL80211_CMD_GET_WOWLAN,
8826 .doit = nl80211_get_wowlan,
8827 .policy = nl80211_policy,
8828 /* can be retrieved by unprivileged users */
8829 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8830 NL80211_FLAG_NEED_RTNL,
8831 },
8832 {
8833 .cmd = NL80211_CMD_SET_WOWLAN,
8834 .doit = nl80211_set_wowlan,
8835 .policy = nl80211_policy,
8836 .flags = GENL_ADMIN_PERM,
8837 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8838 NL80211_FLAG_NEED_RTNL,
8839 },
dfb89c56 8840#endif
e5497d76
JB		 8841 {
8842 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8843 .doit = nl80211_set_rekey_data,
8844 .policy = nl80211_policy,
8845 .flags = GENL_ADMIN_PERM,
8846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8847 NL80211_FLAG_NEED_RTNL,
8848 },
109086ce
AN		 8849 {
8850 .cmd = NL80211_CMD_TDLS_MGMT,
8851 .doit = nl80211_tdls_mgmt,
8852 .policy = nl80211_policy,
8853 .flags = GENL_ADMIN_PERM,
8854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8855 NL80211_FLAG_NEED_RTNL,
8856 },
8857 {
8858 .cmd = NL80211_CMD_TDLS_OPER,
8859 .doit = nl80211_tdls_oper,
8860 .policy = nl80211_policy,
8861 .flags = GENL_ADMIN_PERM,
8862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8863 NL80211_FLAG_NEED_RTNL,
8864 },
28946da7
JB		 8865 {
8866 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8867 .doit = nl80211_register_unexpected_frame,
8868 .policy = nl80211_policy,
8869 .flags = GENL_ADMIN_PERM,
8870 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8871 NL80211_FLAG_NEED_RTNL,
8872 },
7f6cf311
JB		 8873 {
8874 .cmd = NL80211_CMD_PROBE_CLIENT,
8875 .doit = nl80211_probe_client,
8876 .policy = nl80211_policy,
8877 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8879 NL80211_FLAG_NEED_RTNL,
8880 },
5e760230
JB		 8881 {
8882 .cmd = NL80211_CMD_REGISTER_BEACONS,
8883 .doit = nl80211_register_beacons,
8884 .policy = nl80211_policy,
8885 .flags = GENL_ADMIN_PERM,
8886 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8887 NL80211_FLAG_NEED_RTNL,
8888 },
1d9d9213
SW		 8889 {
8890 .cmd = NL80211_CMD_SET_NOACK_MAP,
8891 .doit = nl80211_set_noack_map,
8892 .policy = nl80211_policy,
8893 .flags = GENL_ADMIN_PERM,
8894 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8895 NL80211_FLAG_NEED_RTNL,
8896 },
98104fde
JB		 8897 {
8898 .cmd = NL80211_CMD_START_P2P_DEVICE,
8899 .doit = nl80211_start_p2p_device,
8900 .policy = nl80211_policy,
8901 .flags = GENL_ADMIN_PERM,
8902 .internal_flags = NL80211_FLAG_NEED_WDEV |
8903 NL80211_FLAG_NEED_RTNL,
8904 },
8905 {
8906 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8907 .doit = nl80211_stop_p2p_device,
8908 .policy = nl80211_policy,
8909 .flags = GENL_ADMIN_PERM,
8910 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8911 NL80211_FLAG_NEED_RTNL,
8912 },
f4e583c8
AQ		 8913 {
8914 .cmd = NL80211_CMD_SET_MCAST_RATE,
8915 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8916 .policy = nl80211_policy,
8917 .flags = GENL_ADMIN_PERM,
8918 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8919 NL80211_FLAG_NEED_RTNL,
8920 },
8921 {
8922 .cmd = NL80211_CMD_SET_MAC_ACL,
8923 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8924 .policy = nl80211_policy,
8925 .flags = GENL_ADMIN_PERM,
8926 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8927 NL80211_FLAG_NEED_RTNL,
8928 },
04f39047
SW		 8929 {
8930 .cmd = NL80211_CMD_RADAR_DETECT,
8931 .doit = nl80211_start_radar_detection,
8932 .policy = nl80211_policy,
8933 .flags = GENL_ADMIN_PERM,
8934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8935 NL80211_FLAG_NEED_RTNL,
8936 },
3713b4e3
JB		 8937 {
8938 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8939 .doit = nl80211_get_protocol_features,
8940 .policy = nl80211_policy,
8941 },
355199e0
JM		 8942 {
8943 .cmd = NL80211_CMD_UPDATE_FT_IES,
8944 .doit = nl80211_update_ft_ies,
8945 .policy = nl80211_policy,
8946 .flags = GENL_ADMIN_PERM,
8947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8948 NL80211_FLAG_NEED_RTNL,
8949 },
5de17984
AS		 8950 {
8951 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8952 .doit = nl80211_crit_protocol_start,
8953 .policy = nl80211_policy,
8954 .flags = GENL_ADMIN_PERM,
8955 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8956 NL80211_FLAG_NEED_RTNL,
8957 },
8958 {
8959 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8960 .doit = nl80211_crit_protocol_stop,
8961 .policy = nl80211_policy,
8962 .flags = GENL_ADMIN_PERM,
8963 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8964 NL80211_FLAG_NEED_RTNL,
8965 }
55682965 8966};
9588bbd5 8967
6039f6d2
JM		 8968static struct genl_multicast_group nl80211_mlme_mcgrp = {
8969 .name = "mlme",
8970};
55682965
JB		 8971
8972/* multicast groups */
8973static struct genl_multicast_group nl80211_config_mcgrp = {
8974 .name = "config",
8975};
2a519311
JB		 8976static struct genl_multicast_group nl80211_scan_mcgrp = {
8977 .name = "scan",
8978};
73d54c9e
LR		 8979static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8980 .name = "regulatory",
8981};
55682965
JB		 8982
8983/* notification functions */
8984
8985void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8986{
8987 struct sk_buff *msg;
8988
fd2120ca 8989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8990 if (!msg)
8991 return;
8992
3713b4e3
JB		 8993 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
8994 false, NULL, NULL, NULL) < 0) {
55682965
JB		 8995 nlmsg_free(msg);
8996 return;
8997 }
8998
463d0183
JB		 8999 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9000 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9001}
9002
362a415d
JB		 9003static int nl80211_add_scan_req(struct sk_buff *msg,
9004 struct cfg80211_registered_device *rdev)
9005{
9006 struct cfg80211_scan_request *req = rdev->scan_req;
9007 struct nlattr *nest;
9008 int i;
9009
9010 if (WARN_ON(!req))
9011 return 0;
9012
9013 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9014 if (!nest)
9015 goto nla_put_failure;
9360ffd1
DM		 9016 for (i = 0; i < req->n_ssids; i++) {
9017 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9018 goto nla_put_failure;
9019 }
362a415d
JB		 9020 nla_nest_end(msg, nest);
9021
9022 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9023 if (!nest)
9024 goto nla_put_failure;
9360ffd1
DM		 9025 for (i = 0; i < req->n_channels; i++) {
9026 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9027 goto nla_put_failure;
9028 }
362a415d
JB		 9029 nla_nest_end(msg, nest);
9030
9360ffd1
DM		 9031 if (req->ie &&
9032 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9033 goto nla_put_failure;
362a415d 9034
ed473771
SL		 9035 if (req->flags)
9036 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9037
362a415d
JB		 9038 return 0;
9039 nla_put_failure:
9040 return -ENOBUFS;
9041}
9042
a538e2d5
JB		 9043static int nl80211_send_scan_msg(struct sk_buff *msg,
9044 struct cfg80211_registered_device *rdev,
fd014284 9045 struct wireless_dev *wdev,
15e47304 9046 u32 portid, u32 seq, int flags,
a538e2d5 9047 u32 cmd)
2a519311
JB		 9048{
9049 void *hdr;
9050
15e47304 9051 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9052 if (!hdr)
9053 return -1;
9054
9360ffd1 9055 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9056 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9057 wdev->netdev->ifindex)) ||
9058 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9059 goto nla_put_failure;
2a519311 9060
362a415d
JB		 9061 /* ignore errors and send incomplete event anyway */
9062 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9063
9064 return genlmsg_end(msg, hdr);
9065
9066 nla_put_failure:
9067 genlmsg_cancel(msg, hdr);
9068 return -EMSGSIZE;
9069}
9070
807f8a8c
LC		 9071static int
9072nl80211_send_sched_scan_msg(struct sk_buff *msg,
9073 struct cfg80211_registered_device *rdev,
9074 struct net_device *netdev,
15e47304 9075 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9076{
9077 void *hdr;
9078
15e47304 9079 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9080 if (!hdr)
9081 return -1;
9082
9360ffd1
DM		 9083 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9084 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9085 goto nla_put_failure;
807f8a8c
LC		 9086
9087 return genlmsg_end(msg, hdr);
9088
9089 nla_put_failure:
9090 genlmsg_cancel(msg, hdr);
9091 return -EMSGSIZE;
9092}
9093
a538e2d5 9094void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9095 struct wireless_dev *wdev)
a538e2d5
JB		 9096{
9097 struct sk_buff *msg;
9098
58050fce 9099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9100 if (!msg)
9101 return;
9102
fd014284 9103 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9104 NL80211_CMD_TRIGGER_SCAN) < 0) {
9105 nlmsg_free(msg);
9106 return;
9107 }
9108
463d0183
JB		 9109 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9110 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9111}
9112
2a519311 9113void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9114 struct wireless_dev *wdev)
2a519311
JB		 9115{
9116 struct sk_buff *msg;
9117
fd2120ca 9118 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9119 if (!msg)
9120 return;
9121
fd014284 9122 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9123 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9124 nlmsg_free(msg);
9125 return;
9126 }
9127
463d0183
JB		 9128 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9129 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9130}
9131
9132void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9133 struct wireless_dev *wdev)
2a519311
JB		 9134{
9135 struct sk_buff *msg;
9136
fd2120ca 9137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9138 if (!msg)
9139 return;
9140
fd014284 9141 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9142 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9143 nlmsg_free(msg);
9144 return;
9145 }
9146
463d0183
JB		 9147 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9148 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9149}
9150
807f8a8c
LC		 9151void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9152 struct net_device *netdev)
9153{
9154 struct sk_buff *msg;
9155
9156 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9157 if (!msg)
9158 return;
9159
9160 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9161 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9162 nlmsg_free(msg);
9163 return;
9164 }
9165
9166 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9167 nl80211_scan_mcgrp.id, GFP_KERNEL);
9168}
9169
9170void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9171 struct net_device *netdev, u32 cmd)
9172{
9173 struct sk_buff *msg;
9174
58050fce 9175 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9176 if (!msg)
9177 return;
9178
9179 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9180 nlmsg_free(msg);
9181 return;
9182 }
9183
9184 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9185 nl80211_scan_mcgrp.id, GFP_KERNEL);
9186}
9187
73d54c9e
LR		 9188/*
9189 * This can happen on global regulatory changes or device specific settings
9190 * based on custom world regulatory domains.
9191 */
9192void nl80211_send_reg_change_event(struct regulatory_request *request)
9193{
9194 struct sk_buff *msg;
9195 void *hdr;
9196
fd2120ca 9197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9198 if (!msg)
9199 return;
9200
9201 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9202 if (!hdr) {
9203 nlmsg_free(msg);
9204 return;
9205 }
9206
9207 /* Userspace can always count this one always being set */
9360ffd1
DM		 9208 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9209 goto nla_put_failure;
9210
9211 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9212 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9213 NL80211_REGDOM_TYPE_WORLD))
9214 goto nla_put_failure;
9215 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9216 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9217 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9218 goto nla_put_failure;
9219 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9220 request->intersect) {
9221 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9222 NL80211_REGDOM_TYPE_INTERSECTION))
9223 goto nla_put_failure;
9224 } else {
9225 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9226 NL80211_REGDOM_TYPE_COUNTRY) ||
9227 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9228 request->alpha2))
9229 goto nla_put_failure;
9230 }
9231
f4173766 9232 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9233 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9234 goto nla_put_failure;
73d54c9e 9235
3b7b72ee 9236 genlmsg_end(msg, hdr);
73d54c9e 9237
bc43b28c 9238 rcu_read_lock();
463d0183 9239 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9240 GFP_ATOMIC);
9241 rcu_read_unlock();
73d54c9e
LR		 9242
9243 return;
9244
9245nla_put_failure:
9246 genlmsg_cancel(msg, hdr);
9247 nlmsg_free(msg);
9248}
9249
6039f6d2
JM		 9250static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9251 struct net_device *netdev,
9252 const u8 *buf, size_t len,
e6d6e342 9253 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9254{
9255 struct sk_buff *msg;
9256 void *hdr;
9257
e6d6e342 9258 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9259 if (!msg)
9260 return;
9261
9262 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9263 if (!hdr) {
9264 nlmsg_free(msg);
9265 return;
9266 }
9267
9360ffd1
DM		 9268 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9269 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9270 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9271 goto nla_put_failure;
6039f6d2 9272
3b7b72ee 9273 genlmsg_end(msg, hdr);
6039f6d2 9274
463d0183
JB		 9275 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9276 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9277 return;
9278
9279 nla_put_failure:
9280 genlmsg_cancel(msg, hdr);
9281 nlmsg_free(msg);
9282}
9283
9284void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9285 struct net_device *netdev, const u8 *buf,
9286 size_t len, gfp_t gfp)
6039f6d2
JM		 9287{
9288 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9289 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9290}
9291
9292void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9293 struct net_device *netdev, const u8 *buf,
e6d6e342 9294 size_t len, gfp_t gfp)
6039f6d2 9295{
e6d6e342
JB		 9296 nl80211_send_mlme_event(rdev, netdev, buf, len,
9297 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9298}
9299
53b46b84 9300void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9301 struct net_device *netdev, const u8 *buf,
9302 size_t len, gfp_t gfp)
6039f6d2
JM		 9303{
9304 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9305 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9306}
9307
53b46b84
JM		 9308void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9309 struct net_device *netdev, const u8 *buf,
e6d6e342 9310 size_t len, gfp_t gfp)
6039f6d2
JM		 9311{
9312 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9313 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9314}
9315
947add36
JB		 9316void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9317 size_t len)
cf4e594e 9318{
947add36
JB		 9319 struct wireless_dev *wdev = dev->ieee80211_ptr;
9320 struct wiphy *wiphy = wdev->wiphy;
9321 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9322
9323 trace_cfg80211_send_unprot_deauth(dev);
9324 nl80211_send_mlme_event(rdev, dev, buf, len,
9325 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
cf4e594e 9326}
947add36 9327EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
cf4e594e 9328
947add36
JB		 9329void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9330 size_t len)
cf4e594e 9331{
947add36
JB		 9332 struct wireless_dev *wdev = dev->ieee80211_ptr;
9333 struct wiphy *wiphy = wdev->wiphy;
9334 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9335
9336 trace_cfg80211_send_unprot_disassoc(dev);
9337 nl80211_send_mlme_event(rdev, dev, buf, len,
9338 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
cf4e594e 9339}
947add36 9340EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
cf4e594e 9341
1b06bb40
LR		 9342static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9343 struct net_device *netdev, int cmd,
e6d6e342 9344 const u8 *addr, gfp_t gfp)
1965c853
JM		 9345{
9346 struct sk_buff *msg;
9347 void *hdr;
9348
e6d6e342 9349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9350 if (!msg)
9351 return;
9352
9353 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9354 if (!hdr) {
9355 nlmsg_free(msg);
9356 return;
9357 }
9358
9360ffd1
DM		 9359 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9360 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9361 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9362 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9363 goto nla_put_failure;
1965c853 9364
3b7b72ee 9365 genlmsg_end(msg, hdr);
1965c853 9366
463d0183
JB		 9367 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9368 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9369 return;
9370
9371 nla_put_failure:
9372 genlmsg_cancel(msg, hdr);
9373 nlmsg_free(msg);
9374}
9375
9376void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9377 struct net_device *netdev, const u8 *addr,
9378 gfp_t gfp)
1965c853
JM		 9379{
9380 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9381 addr, gfp);
1965c853
JM		 9382}
9383
9384void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9385 struct net_device *netdev, const u8 *addr,
9386 gfp_t gfp)
1965c853 9387{
e6d6e342
JB		 9388 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9389 addr, gfp);
1965c853
JM		 9390}
9391
b23aa676
SO		 9392void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9393 struct net_device *netdev, const u8 *bssid,
9394 const u8 *req_ie, size_t req_ie_len,
9395 const u8 *resp_ie, size_t resp_ie_len,
9396 u16 status, gfp_t gfp)
9397{
9398 struct sk_buff *msg;
9399 void *hdr;
9400
58050fce 9401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9402 if (!msg)
9403 return;
9404
9405 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9406 if (!hdr) {
9407 nlmsg_free(msg);
9408 return;
9409 }
9410
9360ffd1
DM		 9411 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9412 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9413 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9414 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9415 (req_ie &&
9416 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9417 (resp_ie &&
9418 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9419 goto nla_put_failure;
b23aa676 9420
3b7b72ee 9421 genlmsg_end(msg, hdr);
b23aa676 9422
463d0183
JB		 9423 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9424 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9425 return;
9426
9427 nla_put_failure:
9428 genlmsg_cancel(msg, hdr);
9429 nlmsg_free(msg);
9430
9431}
9432
9433void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9434 struct net_device *netdev, const u8 *bssid,
9435 const u8 *req_ie, size_t req_ie_len,
9436 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9437{
9438 struct sk_buff *msg;
9439 void *hdr;
9440
58050fce 9441 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9442 if (!msg)
9443 return;
9444
9445 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9446 if (!hdr) {
9447 nlmsg_free(msg);
9448 return;
9449 }
9450
9360ffd1
DM		 9451 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9452 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9453 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9454 (req_ie &&
9455 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9456 (resp_ie &&
9457 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9458 goto nla_put_failure;
b23aa676 9459
3b7b72ee 9460 genlmsg_end(msg, hdr);
b23aa676 9461
463d0183
JB		 9462 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9463 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9464 return;
9465
9466 nla_put_failure:
9467 genlmsg_cancel(msg, hdr);
9468 nlmsg_free(msg);
9469
9470}
9471
9472void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9473 struct net_device *netdev, u16 reason,
667503dd 9474 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9475{
9476 struct sk_buff *msg;
9477 void *hdr;
9478
58050fce 9479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9480 if (!msg)
9481 return;
9482
9483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9484 if (!hdr) {
9485 nlmsg_free(msg);
9486 return;
9487 }
9488
9360ffd1
DM		 9489 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9490 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9491 (from_ap && reason &&
9492 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9493 (from_ap &&
9494 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9495 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9496 goto nla_put_failure;
b23aa676 9497
3b7b72ee 9498 genlmsg_end(msg, hdr);
b23aa676 9499
463d0183
JB		 9500 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9501 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9502 return;
9503
9504 nla_put_failure:
9505 genlmsg_cancel(msg, hdr);
9506 nlmsg_free(msg);
9507
9508}
9509
04a773ad
JB		 9510void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9511 struct net_device *netdev, const u8 *bssid,
9512 gfp_t gfp)
9513{
9514 struct sk_buff *msg;
9515 void *hdr;
9516
fd2120ca 9517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9518 if (!msg)
9519 return;
9520
9521 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9522 if (!hdr) {
9523 nlmsg_free(msg);
9524 return;
9525 }
9526
9360ffd1
DM		 9527 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9528 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9529 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9530 goto nla_put_failure;
04a773ad 9531
3b7b72ee 9532 genlmsg_end(msg, hdr);
04a773ad 9533
463d0183
JB		 9534 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9535 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9536 return;
9537
9538 nla_put_failure:
9539 genlmsg_cancel(msg, hdr);
9540 nlmsg_free(msg);
9541}
9542
947add36
JB		 9543void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9544 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9545{
947add36
JB		 9546 struct wireless_dev *wdev = dev->ieee80211_ptr;
9547 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9548 struct sk_buff *msg;
9549 void *hdr;
9550
947add36
JB		 9551 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9552 return;
9553
9554 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9555
c93b5e71
JC		 9556 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9557 if (!msg)
9558 return;
9559
9560 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9561 if (!hdr) {
9562 nlmsg_free(msg);
9563 return;
9564 }
9565
9360ffd1 9566 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9567 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9568 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9569 (ie_len && ie &&
9570 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9571 goto nla_put_failure;
c93b5e71 9572
3b7b72ee 9573 genlmsg_end(msg, hdr);
c93b5e71
JC		 9574
9575 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9576 nl80211_mlme_mcgrp.id, gfp);
9577 return;
9578
9579 nla_put_failure:
9580 genlmsg_cancel(msg, hdr);
9581 nlmsg_free(msg);
9582}
947add36 9583EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9584
a3b8b056
JM		 9585void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9586 struct net_device *netdev, const u8 *addr,
9587 enum nl80211_key_type key_type, int key_id,
e6d6e342 9588 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9589{
9590 struct sk_buff *msg;
9591 void *hdr;
9592
e6d6e342 9593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9594 if (!msg)
9595 return;
9596
9597 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9598 if (!hdr) {
9599 nlmsg_free(msg);
9600 return;
9601 }
9602
9360ffd1
DM		 9603 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9604 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9605 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9606 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9607 (key_id != -1 &&
9608 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9609 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9610 goto nla_put_failure;
a3b8b056 9611
3b7b72ee 9612 genlmsg_end(msg, hdr);
a3b8b056 9613
463d0183
JB		 9614 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9615 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9616 return;
9617
9618 nla_put_failure:
9619 genlmsg_cancel(msg, hdr);
9620 nlmsg_free(msg);
9621}
9622
6bad8766
LR		 9623void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9624 struct ieee80211_channel *channel_before,
9625 struct ieee80211_channel *channel_after)
9626{
9627 struct sk_buff *msg;
9628 void *hdr;
9629 struct nlattr *nl_freq;
9630
fd2120ca 9631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9632 if (!msg)
9633 return;
9634
9635 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9636 if (!hdr) {
9637 nlmsg_free(msg);
9638 return;
9639 }
9640
9641 /*
9642 * Since we are applying the beacon hint to a wiphy we know its
9643 * wiphy_idx is valid
9644 */
9360ffd1
DM		 9645 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9646 goto nla_put_failure;
6bad8766
LR		 9647
9648 /* Before */
9649 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9650 if (!nl_freq)
9651 goto nla_put_failure;
cdc89b97 9652 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9653 goto nla_put_failure;
9654 nla_nest_end(msg, nl_freq);
9655
9656 /* After */
9657 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9658 if (!nl_freq)
9659 goto nla_put_failure;
cdc89b97 9660 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9661 goto nla_put_failure;
9662 nla_nest_end(msg, nl_freq);
9663
3b7b72ee 9664 genlmsg_end(msg, hdr);
6bad8766 9665
463d0183
JB		 9666 rcu_read_lock();
9667 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9668 GFP_ATOMIC);
9669 rcu_read_unlock();
6bad8766
LR		 9670
9671 return;
9672
9673nla_put_failure:
9674 genlmsg_cancel(msg, hdr);
9675 nlmsg_free(msg);
9676}
9677
9588bbd5
JM		 9678static void nl80211_send_remain_on_chan_event(
9679 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9680 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9681 struct ieee80211_channel *chan,
9588bbd5
JM		 9682 unsigned int duration, gfp_t gfp)
9683{
9684 struct sk_buff *msg;
9685 void *hdr;
9686
9687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9688 if (!msg)
9689 return;
9690
9691 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9692 if (!hdr) {
9693 nlmsg_free(msg);
9694 return;
9695 }
9696
9360ffd1 9697 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9698 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9699 wdev->netdev->ifindex)) ||
00f53350 9700 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9701 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9702 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9703 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9704 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9705 goto nla_put_failure;
9588bbd5 9706
9360ffd1
DM		 9707 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9708 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9709 goto nla_put_failure;
9588bbd5 9710
3b7b72ee 9711 genlmsg_end(msg, hdr);
9588bbd5
JM		 9712
9713 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9714 nl80211_mlme_mcgrp.id, gfp);
9715 return;
9716
9717 nla_put_failure:
9718 genlmsg_cancel(msg, hdr);
9719 nlmsg_free(msg);
9720}
9721
947add36
JB		 9722void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9723 struct ieee80211_channel *chan,
9724 unsigned int duration, gfp_t gfp)
9588bbd5 9725{
947add36
JB		 9726 struct wiphy *wiphy = wdev->wiphy;
9727 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9728
9729 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9730 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9731 rdev, wdev, cookie, chan,
42d97a59 9732 duration, gfp);
9588bbd5 9733}
947add36 9734EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9735
947add36
JB		 9736void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9737 struct ieee80211_channel *chan,
9738 gfp_t gfp)
9588bbd5 9739{
947add36
JB		 9740 struct wiphy *wiphy = wdev->wiphy;
9741 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9742
9743 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9744 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9745 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9746}
947add36 9747EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9748
947add36
JB		 9749void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9750 struct station_info *sinfo, gfp_t gfp)
98b62183 9751{
947add36
JB		 9752 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9753 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9754 struct sk_buff *msg;
9755
947add36
JB		 9756 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9757
58050fce 9758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9759 if (!msg)
9760 return;
9761
66266b3a
JL		 9762 if (nl80211_send_station(msg, 0, 0, 0,
9763 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9764 nlmsg_free(msg);
9765 return;
9766 }
9767
9768 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9769 nl80211_mlme_mcgrp.id, gfp);
9770}
947add36 9771EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9772
947add36 9773void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9774{
947add36
JB		 9775 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9776 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9777 struct sk_buff *msg;
9778 void *hdr;
9779
947add36
JB		 9780 trace_cfg80211_del_sta(dev, mac_addr);
9781
58050fce 9782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9783 if (!msg)
9784 return;
9785
9786 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9787 if (!hdr) {
9788 nlmsg_free(msg);
9789 return;
9790 }
9791
9360ffd1
DM		 9792 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9794 goto nla_put_failure;
ec15e68b 9795
3b7b72ee 9796 genlmsg_end(msg, hdr);
ec15e68b
JM		 9797
9798 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9799 nl80211_mlme_mcgrp.id, gfp);
9800 return;
9801
9802 nla_put_failure:
9803 genlmsg_cancel(msg, hdr);
9804 nlmsg_free(msg);
9805}
947add36 9806EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9807
947add36
JB		 9808void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9809 enum nl80211_connect_failed_reason reason,
9810 gfp_t gfp)
ed44a951 9811{
947add36
JB		 9812 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9813 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9814 struct sk_buff *msg;
9815 void *hdr;
9816
9817 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9818 if (!msg)
9819 return;
9820
9821 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9822 if (!hdr) {
9823 nlmsg_free(msg);
9824 return;
9825 }
9826
9827 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9828 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9829 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9830 goto nla_put_failure;
9831
9832 genlmsg_end(msg, hdr);
9833
9834 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9835 nl80211_mlme_mcgrp.id, gfp);
9836 return;
9837
9838 nla_put_failure:
9839 genlmsg_cancel(msg, hdr);
9840 nlmsg_free(msg);
9841}
947add36 9842EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9843
b92ab5d8
JB		 9844static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9845 const u8 *addr, gfp_t gfp)
28946da7
JB		 9846{
9847 struct wireless_dev *wdev = dev->ieee80211_ptr;
9848 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9849 struct sk_buff *msg;
9850 void *hdr;
9851 int err;
15e47304 9852 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9853
15e47304 9854 if (!nlportid)
28946da7
JB		 9855 return false;
9856
9857 msg = nlmsg_new(100, gfp);
9858 if (!msg)
9859 return true;
9860
b92ab5d8 9861 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9862 if (!hdr) {
9863 nlmsg_free(msg);
9864 return true;
9865 }
9866
9360ffd1
DM		 9867 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9868 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9869 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9870 goto nla_put_failure;
28946da7
JB		 9871
9872 err = genlmsg_end(msg, hdr);
9873 if (err < 0) {
9874 nlmsg_free(msg);
9875 return true;
9876 }
9877
15e47304 9878 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9879 return true;
9880
9881 nla_put_failure:
9882 genlmsg_cancel(msg, hdr);
9883 nlmsg_free(msg);
9884 return true;
9885}
9886
947add36
JB		 9887bool cfg80211_rx_spurious_frame(struct net_device *dev,
9888 const u8 *addr, gfp_t gfp)
b92ab5d8 9889{
947add36
JB		 9890 struct wireless_dev *wdev = dev->ieee80211_ptr;
9891 bool ret;
9892
9893 trace_cfg80211_rx_spurious_frame(dev, addr);
9894
9895 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9896 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9897 trace_cfg80211_return_bool(false);
9898 return false;
9899 }
9900 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9901 addr, gfp);
9902 trace_cfg80211_return_bool(ret);
9903 return ret;
b92ab5d8 9904}
947add36 9905EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9906
947add36
JB		 9907bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9908 const u8 *addr, gfp_t gfp)
b92ab5d8 9909{
947add36
JB		 9910 struct wireless_dev *wdev = dev->ieee80211_ptr;
9911 bool ret;
9912
9913 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9914
9915 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9916 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9917 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9918 trace_cfg80211_return_bool(false);
9919 return false;
9920 }
9921 ret = __nl80211_unexpected_frame(dev,
9922 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9923 addr, gfp);
9924 trace_cfg80211_return_bool(ret);
9925 return ret;
b92ab5d8 9926}
947add36 9927EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9928
2e161f78 9929int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9930 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9931 int freq, int sig_dbm,
9932 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9933{
71bbc994 9934 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9935 struct sk_buff *msg;
9936 void *hdr;
026331c4
JM		 9937
9938 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9939 if (!msg)
9940 return -ENOMEM;
9941
2e161f78 9942 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9943 if (!hdr) {
9944 nlmsg_free(msg);
9945 return -ENOMEM;
9946 }
9947
9360ffd1 9948 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9949 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9950 netdev->ifindex)) ||
a838490b 9951 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9952 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9953 (sig_dbm &&
9954 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9955 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9956 goto nla_put_failure;
026331c4 9957
3b7b72ee 9958 genlmsg_end(msg, hdr);
026331c4 9959
15e47304 9960 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9961
9962 nla_put_failure:
9963 genlmsg_cancel(msg, hdr);
9964 nlmsg_free(msg);
9965 return -ENOBUFS;
9966}
9967
947add36
JB		 9968void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9969 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9970{
947add36
JB		 9971 struct wiphy *wiphy = wdev->wiphy;
9972 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9973 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9974 struct sk_buff *msg;
9975 void *hdr;
9976
947add36
JB		 9977 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9978
026331c4
JM		 9979 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9980 if (!msg)
9981 return;
9982
2e161f78 9983 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9984 if (!hdr) {
9985 nlmsg_free(msg);
9986 return;
9987 }
9988
9360ffd1 9989 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9990 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9991 netdev->ifindex)) ||
a838490b 9992 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9993 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9994 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9995 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9996 goto nla_put_failure;
026331c4 9997
3b7b72ee 9998 genlmsg_end(msg, hdr);
026331c4
JM		 9999
10000 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10001 return;
10002
10003 nla_put_failure:
10004 genlmsg_cancel(msg, hdr);
10005 nlmsg_free(msg);
10006}
947add36 10007EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10008
947add36
JB		 10009void cfg80211_cqm_rssi_notify(struct net_device *dev,
10010 enum nl80211_cqm_rssi_threshold_event rssi_event,
10011 gfp_t gfp)
d6dc1a38 10012{
947add36
JB		 10013 struct wireless_dev *wdev = dev->ieee80211_ptr;
10014 struct wiphy *wiphy = wdev->wiphy;
10015 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10016 struct sk_buff *msg;
10017 struct nlattr *pinfoattr;
10018 void *hdr;
10019
947add36
JB		 10020 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10021
58050fce 10022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10023 if (!msg)
10024 return;
10025
10026 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10027 if (!hdr) {
10028 nlmsg_free(msg);
10029 return;
10030 }
10031
9360ffd1 10032 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10033 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10034 goto nla_put_failure;
d6dc1a38
JO		 10035
10036 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10037 if (!pinfoattr)
10038 goto nla_put_failure;
10039
9360ffd1
DM		 10040 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10041 rssi_event))
10042 goto nla_put_failure;
d6dc1a38
JO		 10043
10044 nla_nest_end(msg, pinfoattr);
10045
3b7b72ee 10046 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10047
10048 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10049 nl80211_mlme_mcgrp.id, gfp);
10050 return;
10051
10052 nla_put_failure:
10053 genlmsg_cancel(msg, hdr);
10054 nlmsg_free(msg);
10055}
947add36 10056EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10057
947add36
JB		 10058static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10059 struct net_device *netdev, const u8 *bssid,
10060 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10061{
10062 struct sk_buff *msg;
10063 struct nlattr *rekey_attr;
10064 void *hdr;
10065
58050fce 10066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10067 if (!msg)
10068 return;
10069
10070 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10071 if (!hdr) {
10072 nlmsg_free(msg);
10073 return;
10074 }
10075
9360ffd1
DM		 10076 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10077 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10079 goto nla_put_failure;
e5497d76
JB		 10080
10081 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10082 if (!rekey_attr)
10083 goto nla_put_failure;
10084
9360ffd1
DM		 10085 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10086 NL80211_REPLAY_CTR_LEN, replay_ctr))
10087 goto nla_put_failure;
e5497d76
JB		 10088
10089 nla_nest_end(msg, rekey_attr);
10090
3b7b72ee 10091 genlmsg_end(msg, hdr);
e5497d76
JB		 10092
10093 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10094 nl80211_mlme_mcgrp.id, gfp);
10095 return;
10096
10097 nla_put_failure:
10098 genlmsg_cancel(msg, hdr);
10099 nlmsg_free(msg);
10100}
10101
947add36
JB		 10102void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10103 const u8 *replay_ctr, gfp_t gfp)
10104{
10105 struct wireless_dev *wdev = dev->ieee80211_ptr;
10106 struct wiphy *wiphy = wdev->wiphy;
10107 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10108
10109 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10110 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10111}
10112EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10113
10114static void
10115nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10116 struct net_device *netdev, int index,
10117 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10118{
10119 struct sk_buff *msg;
10120 struct nlattr *attr;
10121 void *hdr;
10122
58050fce 10123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10124 if (!msg)
10125 return;
10126
10127 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10128 if (!hdr) {
10129 nlmsg_free(msg);
10130 return;
10131 }
10132
9360ffd1
DM		 10133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10134 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10135 goto nla_put_failure;
c9df56b4
JM		 10136
10137 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10138 if (!attr)
10139 goto nla_put_failure;
10140
9360ffd1
DM		 10141 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10142 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10143 (preauth &&
10144 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10145 goto nla_put_failure;
c9df56b4
JM		 10146
10147 nla_nest_end(msg, attr);
10148
3b7b72ee 10149 genlmsg_end(msg, hdr);
c9df56b4
JM		 10150
10151 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10152 nl80211_mlme_mcgrp.id, gfp);
10153 return;
10154
10155 nla_put_failure:
10156 genlmsg_cancel(msg, hdr);
10157 nlmsg_free(msg);
10158}
10159
947add36
JB		 10160void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10161 const u8 *bssid, bool preauth, gfp_t gfp)
10162{
10163 struct wireless_dev *wdev = dev->ieee80211_ptr;
10164 struct wiphy *wiphy = wdev->wiphy;
10165 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10166
10167 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10168 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10169}
10170EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10171
10172static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10173 struct net_device *netdev,
10174 struct cfg80211_chan_def *chandef,
10175 gfp_t gfp)
5314526b
TP		 10176{
10177 struct sk_buff *msg;
10178 void *hdr;
10179
58050fce 10180 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10181 if (!msg)
10182 return;
10183
10184 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10185 if (!hdr) {
10186 nlmsg_free(msg);
10187 return;
10188 }
10189
683b6d3b
JB		 10190 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10191 goto nla_put_failure;
10192
10193 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10194 goto nla_put_failure;
5314526b
TP		 10195
10196 genlmsg_end(msg, hdr);
10197
10198 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10199 nl80211_mlme_mcgrp.id, gfp);
10200 return;
10201
10202 nla_put_failure:
10203 genlmsg_cancel(msg, hdr);
10204 nlmsg_free(msg);
10205}
10206
947add36
JB		 10207void cfg80211_ch_switch_notify(struct net_device *dev,
10208 struct cfg80211_chan_def *chandef)
84f10708 10209{
947add36
JB		 10210 struct wireless_dev *wdev = dev->ieee80211_ptr;
10211 struct wiphy *wiphy = wdev->wiphy;
10212 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10213
10214 trace_cfg80211_ch_switch_notify(dev, chandef);
10215
10216 wdev_lock(wdev);
10217
10218 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10219 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10220 goto out;
10221
10222 wdev->channel = chandef->chan;
10223 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10224out:
10225 wdev_unlock(wdev);
10226 return;
10227}
10228EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10229
10230void cfg80211_cqm_txe_notify(struct net_device *dev,
10231 const u8 *peer, u32 num_packets,
10232 u32 rate, u32 intvl, gfp_t gfp)
10233{
10234 struct wireless_dev *wdev = dev->ieee80211_ptr;
10235 struct wiphy *wiphy = wdev->wiphy;
10236 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10237 struct sk_buff *msg;
10238 struct nlattr *pinfoattr;
10239 void *hdr;
10240
10241 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10242 if (!msg)
10243 return;
10244
10245 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10246 if (!hdr) {
10247 nlmsg_free(msg);
10248 return;
10249 }
10250
10251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10252 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10253 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10254 goto nla_put_failure;
10255
10256 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10257 if (!pinfoattr)
10258 goto nla_put_failure;
10259
10260 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10261 goto nla_put_failure;
10262
10263 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10264 goto nla_put_failure;
10265
10266 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10267 goto nla_put_failure;
10268
10269 nla_nest_end(msg, pinfoattr);
10270
10271 genlmsg_end(msg, hdr);
10272
10273 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10274 nl80211_mlme_mcgrp.id, gfp);
10275 return;
10276
10277 nla_put_failure:
10278 genlmsg_cancel(msg, hdr);
10279 nlmsg_free(msg);
10280}
947add36 10281EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10282
04f39047
SW		 10283void
10284nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10285 struct cfg80211_chan_def *chandef,
10286 enum nl80211_radar_event event,
10287 struct net_device *netdev, gfp_t gfp)
10288{
10289 struct sk_buff *msg;
10290 void *hdr;
10291
10292 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10293 if (!msg)
10294 return;
10295
10296 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10297 if (!hdr) {
10298 nlmsg_free(msg);
10299 return;
10300 }
10301
10302 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10303 goto nla_put_failure;
10304
10305 /* NOP and radar events don't need a netdev parameter */
10306 if (netdev) {
10307 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10308
10309 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10310 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10311 goto nla_put_failure;
10312 }
10313
10314 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10315 goto nla_put_failure;
10316
10317 if (nl80211_send_chandef(msg, chandef))
10318 goto nla_put_failure;
10319
10320 if (genlmsg_end(msg, hdr) < 0) {
10321 nlmsg_free(msg);
10322 return;
10323 }
10324
10325 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10326 nl80211_mlme_mcgrp.id, gfp);
10327 return;
10328
10329 nla_put_failure:
10330 genlmsg_cancel(msg, hdr);
10331 nlmsg_free(msg);
10332}
10333
947add36
JB		 10334void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10335 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10336{
947add36
JB		 10337 struct wireless_dev *wdev = dev->ieee80211_ptr;
10338 struct wiphy *wiphy = wdev->wiphy;
10339 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10340 struct sk_buff *msg;
10341 struct nlattr *pinfoattr;
10342 void *hdr;
10343
947add36
JB		 10344 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10345
58050fce 10346 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10347 if (!msg)
10348 return;
10349
10350 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10351 if (!hdr) {
10352 nlmsg_free(msg);
10353 return;
10354 }
10355
9360ffd1 10356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10357 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10358 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10359 goto nla_put_failure;
c063dbf5
JB		 10360
10361 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10362 if (!pinfoattr)
10363 goto nla_put_failure;
10364
9360ffd1
DM		 10365 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10366 goto nla_put_failure;
c063dbf5
JB		 10367
10368 nla_nest_end(msg, pinfoattr);
10369
3b7b72ee 10370 genlmsg_end(msg, hdr);
c063dbf5
JB		 10371
10372 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10373 nl80211_mlme_mcgrp.id, gfp);
10374 return;
10375
10376 nla_put_failure:
10377 genlmsg_cancel(msg, hdr);
10378 nlmsg_free(msg);
10379}
947add36 10380EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10381
7f6cf311
JB		 10382void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10383 u64 cookie, bool acked, gfp_t gfp)
10384{
10385 struct wireless_dev *wdev = dev->ieee80211_ptr;
10386 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10387 struct sk_buff *msg;
10388 void *hdr;
10389 int err;
10390
4ee3e063
BL		 10391 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10392
58050fce 10393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10394
7f6cf311
JB		 10395 if (!msg)
10396 return;
10397
10398 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10399 if (!hdr) {
10400 nlmsg_free(msg);
10401 return;
10402 }
10403
9360ffd1
DM		 10404 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10405 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10406 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10407 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10408 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10409 goto nla_put_failure;
7f6cf311
JB		 10410
10411 err = genlmsg_end(msg, hdr);
10412 if (err < 0) {
10413 nlmsg_free(msg);
10414 return;
10415 }
10416
10417 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10418 nl80211_mlme_mcgrp.id, gfp);
10419 return;
10420
10421 nla_put_failure:
10422 genlmsg_cancel(msg, hdr);
10423 nlmsg_free(msg);
10424}
10425EXPORT_SYMBOL(cfg80211_probe_status);
10426
5e760230
JB		 10427void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10428 const u8 *frame, size_t len,
37c73b5f 10429 int freq, int sig_dbm)
5e760230
JB		 10430{
10431 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10432 struct sk_buff *msg;
10433 void *hdr;
37c73b5f 10434 struct cfg80211_beacon_registration *reg;
5e760230 10435
4ee3e063
BL		 10436 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10437
37c73b5f
BG		 10438 spin_lock_bh(&rdev->beacon_registrations_lock);
10439 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10440 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10441 if (!msg) {
10442 spin_unlock_bh(&rdev->beacon_registrations_lock);
10443 return;
10444 }
5e760230 10445
37c73b5f
BG		 10446 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10447 if (!hdr)
10448 goto nla_put_failure;
5e760230 10449
37c73b5f
BG		 10450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10451 (freq &&
10452 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10453 (sig_dbm &&
10454 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10455 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10456 goto nla_put_failure;
5e760230 10457
37c73b5f 10458 genlmsg_end(msg, hdr);
5e760230 10459
37c73b5f
BG		 10460 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10461 }
10462 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10463 return;
10464
10465 nla_put_failure:
37c73b5f
BG		 10466 spin_unlock_bh(&rdev->beacon_registrations_lock);
10467 if (hdr)
10468 genlmsg_cancel(msg, hdr);
5e760230
JB		 10469 nlmsg_free(msg);
10470}
10471EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10472
cd8f7cb4
JB		 10473#ifdef CONFIG_PM
10474void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10475 struct cfg80211_wowlan_wakeup *wakeup,
10476 gfp_t gfp)
10477{
10478 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10479 struct sk_buff *msg;
10480 void *hdr;
10481 int err, size = 200;
10482
10483 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10484
10485 if (wakeup)
10486 size += wakeup->packet_present_len;
10487
10488 msg = nlmsg_new(size, gfp);
10489 if (!msg)
10490 return;
10491
10492 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10493 if (!hdr)
10494 goto free_msg;
10495
10496 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10497 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10498 goto free_msg;
10499
10500 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10501 wdev->netdev->ifindex))
10502 goto free_msg;
10503
10504 if (wakeup) {
10505 struct nlattr *reasons;
10506
10507 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10508
10509 if (wakeup->disconnect &&
10510 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10511 goto free_msg;
10512 if (wakeup->magic_pkt &&
10513 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10514 goto free_msg;
10515 if (wakeup->gtk_rekey_failure &&
10516 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10517 goto free_msg;
10518 if (wakeup->eap_identity_req &&
10519 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10520 goto free_msg;
10521 if (wakeup->four_way_handshake &&
10522 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10523 goto free_msg;
10524 if (wakeup->rfkill_release &&
10525 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10526 goto free_msg;
10527
10528 if (wakeup->pattern_idx >= 0 &&
10529 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10530 wakeup->pattern_idx))
10531 goto free_msg;
10532
2a0e047e
JB		 10533 if (wakeup->tcp_match)
10534 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10535
10536 if (wakeup->tcp_connlost)
10537 nla_put_flag(msg,
10538 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10539
10540 if (wakeup->tcp_nomoretokens)
10541 nla_put_flag(msg,
10542 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10543
cd8f7cb4
JB		 10544 if (wakeup->packet) {
10545 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10546 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10547
10548 if (!wakeup->packet_80211) {
10549 pkt_attr =
10550 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10551 len_attr =
10552 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10553 }
10554
10555 if (wakeup->packet_len &&
10556 nla_put_u32(msg, len_attr, wakeup->packet_len))
10557 goto free_msg;
10558
10559 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10560 wakeup->packet))
10561 goto free_msg;
10562 }
10563
10564 nla_nest_end(msg, reasons);
10565 }
10566
10567 err = genlmsg_end(msg, hdr);
10568 if (err < 0)
10569 goto free_msg;
10570
10571 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10572 nl80211_mlme_mcgrp.id, gfp);
10573 return;
10574
10575 free_msg:
10576 nlmsg_free(msg);
10577}
10578EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10579#endif
10580
3475b094
JM		 10581void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10582 enum nl80211_tdls_operation oper,
10583 u16 reason_code, gfp_t gfp)
10584{
10585 struct wireless_dev *wdev = dev->ieee80211_ptr;
10586 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10587 struct sk_buff *msg;
10588 void *hdr;
10589 int err;
10590
10591 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10592 reason_code);
10593
10594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10595 if (!msg)
10596 return;
10597
10598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10599 if (!hdr) {
10600 nlmsg_free(msg);
10601 return;
10602 }
10603
10604 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10605 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10606 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10607 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10608 (reason_code > 0 &&
10609 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10610 goto nla_put_failure;
10611
10612 err = genlmsg_end(msg, hdr);
10613 if (err < 0) {
10614 nlmsg_free(msg);
10615 return;
10616 }
10617
10618 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10619 nl80211_mlme_mcgrp.id, gfp);
10620 return;
10621
10622 nla_put_failure:
10623 genlmsg_cancel(msg, hdr);
10624 nlmsg_free(msg);
10625}
10626EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10627
026331c4
JM		 10628static int nl80211_netlink_notify(struct notifier_block * nb,
10629 unsigned long state,
10630 void *_notify)
10631{
10632 struct netlink_notify *notify = _notify;
10633 struct cfg80211_registered_device *rdev;
10634 struct wireless_dev *wdev;
37c73b5f 10635 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10636
10637 if (state != NETLINK_URELEASE)
10638 return NOTIFY_DONE;
10639
10640 rcu_read_lock();
10641
5e760230 10642 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10643 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10644 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10645
10646 spin_lock_bh(&rdev->beacon_registrations_lock);
10647 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10648 list) {
10649 if (reg->nlportid == notify->portid) {
10650 list_del(&reg->list);
10651 kfree(reg);
10652 break;
10653 }
10654 }
10655 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10656 }
026331c4
JM		 10657
10658 rcu_read_unlock();
10659
10660 return NOTIFY_DONE;
10661}
10662
10663static struct notifier_block nl80211_netlink_notifier = {
10664 .notifier_call = nl80211_netlink_notify,
10665};
10666
355199e0
JM		 10667void cfg80211_ft_event(struct net_device *netdev,
10668 struct cfg80211_ft_event_params *ft_event)
10669{
10670 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10671 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10672 struct sk_buff *msg;
10673 void *hdr;
10674 int err;
10675
10676 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10677
10678 if (!ft_event->target_ap)
10679 return;
10680
10681 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10682 if (!msg)
10683 return;
10684
10685 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10686 if (!hdr) {
10687 nlmsg_free(msg);
10688 return;
10689 }
10690
10691 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10692 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10693 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10694 if (ft_event->ies)
10695 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10696 if (ft_event->ric_ies)
10697 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10698 ft_event->ric_ies);
10699
10700 err = genlmsg_end(msg, hdr);
10701 if (err < 0) {
10702 nlmsg_free(msg);
10703 return;
10704 }
10705
10706 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10707 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10708}
10709EXPORT_SYMBOL(cfg80211_ft_event);
10710
5de17984
AS		 10711void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10712{
10713 struct cfg80211_registered_device *rdev;
10714 struct sk_buff *msg;
10715 void *hdr;
10716 u32 nlportid;
10717
10718 rdev = wiphy_to_dev(wdev->wiphy);
10719 if (!rdev->crit_proto_nlportid)
10720 return;
10721
10722 nlportid = rdev->crit_proto_nlportid;
10723 rdev->crit_proto_nlportid = 0;
10724
10725 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10726 if (!msg)
10727 return;
10728
10729 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10730 if (!hdr)
10731 goto nla_put_failure;
10732
10733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10734 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10735 goto nla_put_failure;
10736
10737 genlmsg_end(msg, hdr);
10738
10739 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10740 return;
10741
10742 nla_put_failure:
10743 if (hdr)
10744 genlmsg_cancel(msg, hdr);
10745 nlmsg_free(msg);
10746
10747}
10748EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10749
55682965
JB		 10750/* initialisation/exit functions */
10751
10752int nl80211_init(void)
10753{
0d63cbb5 10754 int err;
55682965 10755
0d63cbb5
MM		 10756 err = genl_register_family_with_ops(&nl80211_fam,
10757 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10758 if (err)
10759 return err;
10760
55682965
JB		 10761 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10762 if (err)
10763 goto err_out;
10764
2a519311
JB		 10765 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10766 if (err)
10767 goto err_out;
10768
73d54c9e
LR		 10769 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10770 if (err)
10771 goto err_out;
10772
6039f6d2
JM		 10773 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10774 if (err)
10775 goto err_out;
10776
aff89a9b
JB		 10777#ifdef CONFIG_NL80211_TESTMODE
10778 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10779 if (err)
10780 goto err_out;
10781#endif
10782
026331c4
JM		 10783 err = netlink_register_notifier(&nl80211_netlink_notifier);
10784 if (err)
10785 goto err_out;
10786
55682965
JB		 10787 return 0;
10788 err_out:
10789 genl_unregister_family(&nl80211_fam);
10790 return err;
10791}
10792
10793void nl80211_exit(void)
10794{
026331c4 10795 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10796 genl_unregister_family(&nl80211_fam);
10797}
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