]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-eoan-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cfg80211: make WoWLAN configuration available to drivers
[mirror_ubuntu-eoan-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{
911 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
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
3713b4e3
JB		 954 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
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
3713b4e3
JB		 961 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
962 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
963 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
964 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
965 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
966 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
967 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
968 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
969 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
970 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
971 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
972 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
973 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
974 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
975 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
976 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
977 return -ENOBUFS;
9360ffd1 978
3713b4e3
JB		 979 if (dev->wiphy.wowlan.n_patterns) {
980 struct nl80211_wowlan_pattern_support pat = {
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,
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 },
2230};
2231
2232static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2233{
2234 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2235 int flag;
2236
2237 *mntrflags = 0;
2238
2239 if (!nla)
2240 return -EINVAL;
2241
2242 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2243 nla, mntr_flags_policy))
2244 return -EINVAL;
2245
2246 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2247 if (flags[flag])
2248 *mntrflags |= (1<<flag);
2249
2250 return 0;
2251}
2252
9bc383de 2253static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2254 struct net_device *netdev, u8 use_4addr,
2255 enum nl80211_iftype iftype)
9bc383de 2256{
ad4bb6f8 2257 if (!use_4addr) {
f350a0a8 2258 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2259 return -EBUSY;
9bc383de 2260 return 0;
ad4bb6f8 2261 }
9bc383de
JB		 2262
2263 switch (iftype) {
2264 case NL80211_IFTYPE_AP_VLAN:
2265 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2266 return 0;
2267 break;
2268 case NL80211_IFTYPE_STATION:
2269 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2270 return 0;
2271 break;
2272 default:
2273 break;
2274 }
2275
2276 return -EOPNOTSUPP;
2277}
2278
55682965
JB		 2279static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2280{
4c476991 2281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2282 struct vif_params params;
e36d56b6 2283 int err;
04a773ad 2284 enum nl80211_iftype otype, ntype;
4c476991 2285 struct net_device *dev = info->user_ptr[1];
92ffe055 2286 u32 _flags, *flags = NULL;
ac7f9cfa 2287 bool change = false;
55682965 2288
2ec600d6
LCC		 2289 memset(&params, 0, sizeof(params));
2290
04a773ad 2291 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2292
723b038d 2293 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2294 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2295 if (otype != ntype)
ac7f9cfa 2296 change = true;
4c476991
JB		 2297 if (ntype > NL80211_IFTYPE_MAX)
2298 return -EINVAL;
723b038d
JB		 2299 }
2300
92ffe055 2301 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2302 struct wireless_dev *wdev = dev->ieee80211_ptr;
2303
4c476991
JB		 2304 if (ntype != NL80211_IFTYPE_MESH_POINT)
2305 return -EINVAL;
29cbe68c
JB		 2306 if (netif_running(dev))
2307 return -EBUSY;
2308
2309 wdev_lock(wdev);
2310 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2311 IEEE80211_MAX_MESH_ID_LEN);
2312 wdev->mesh_id_up_len =
2313 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2314 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2315 wdev->mesh_id_up_len);
2316 wdev_unlock(wdev);
2ec600d6
LCC		 2317 }
2318
8b787643
FF		 2319 if (info->attrs[NL80211_ATTR_4ADDR]) {
2320 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2321 change = true;
ad4bb6f8 2322 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2323 if (err)
4c476991 2324 return err;
8b787643
FF		 2325 } else {
2326 params.use_4addr = -1;
2327 }
2328
92ffe055 2329 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2330 if (ntype != NL80211_IFTYPE_MONITOR)
2331 return -EINVAL;
92ffe055
JB		 2332 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2333 &_flags);
ac7f9cfa 2334 if (err)
4c476991 2335 return err;
ac7f9cfa
JB		 2336
2337 flags = &_flags;
2338 change = true;
92ffe055 2339 }
3b85875a 2340
ac7f9cfa 2341 if (change)
3d54d255 2342 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2343 else
2344 err = 0;
60719ffd 2345
9bc383de
JB		 2346 if (!err && params.use_4addr != -1)
2347 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2348
55682965
JB		 2349 return err;
2350}
2351
2352static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2353{
4c476991 2354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2355 struct vif_params params;
84efbb84 2356 struct wireless_dev *wdev;
1c90f9d4 2357 struct sk_buff *msg;
55682965
JB		 2358 int err;
2359 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2360 u32 flags;
55682965 2361
2ec600d6
LCC		 2362 memset(&params, 0, sizeof(params));
2363
55682965
JB		 2364 if (!info->attrs[NL80211_ATTR_IFNAME])
2365 return -EINVAL;
2366
2367 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2368 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2369 if (type > NL80211_IFTYPE_MAX)
2370 return -EINVAL;
2371 }
2372
79c97e97 2373 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2374 !(rdev->wiphy.interface_modes & (1 << type)))
2375 return -EOPNOTSUPP;
55682965 2376
1c18f145
AS		 2377 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2378 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2379 ETH_ALEN);
2380 if (!is_valid_ether_addr(params.macaddr))
2381 return -EADDRNOTAVAIL;
2382 }
2383
9bc383de 2384 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2385 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2386 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2387 if (err)
4c476991 2388 return err;
9bc383de 2389 }
8b787643 2390
1c90f9d4
JB		 2391 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2392 if (!msg)
2393 return -ENOMEM;
2394
66f7ac50
MW		 2395 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2396 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2397 &flags);
e35e4d28
HG		 2398 wdev = rdev_add_virtual_intf(rdev,
2399 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2400 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2401 if (IS_ERR(wdev)) {
2402 nlmsg_free(msg);
84efbb84 2403 return PTR_ERR(wdev);
1c90f9d4 2404 }
2ec600d6 2405
98104fde
JB		 2406 switch (type) {
2407 case NL80211_IFTYPE_MESH_POINT:
2408 if (!info->attrs[NL80211_ATTR_MESH_ID])
2409 break;
29cbe68c
JB		 2410 wdev_lock(wdev);
2411 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2412 IEEE80211_MAX_MESH_ID_LEN);
2413 wdev->mesh_id_up_len =
2414 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2415 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2416 wdev->mesh_id_up_len);
2417 wdev_unlock(wdev);
98104fde
JB		 2418 break;
2419 case NL80211_IFTYPE_P2P_DEVICE:
2420 /*
2421 * P2P Device doesn't have a netdev, so doesn't go
2422 * through the netdev notifier and must be added here
2423 */
2424 mutex_init(&wdev->mtx);
2425 INIT_LIST_HEAD(&wdev->event_list);
2426 spin_lock_init(&wdev->event_lock);
2427 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2428 spin_lock_init(&wdev->mgmt_registrations_lock);
2429
98104fde
JB		 2430 wdev->identifier = ++rdev->wdev_id;
2431 list_add_rcu(&wdev->list, &rdev->wdev_list);
2432 rdev->devlist_generation++;
98104fde
JB		 2433 break;
2434 default:
2435 break;
29cbe68c
JB		 2436 }
2437
15e47304 2438 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2439 rdev, wdev) < 0) {
2440 nlmsg_free(msg);
2441 return -ENOBUFS;
2442 }
2443
2444 return genlmsg_reply(msg, info);
55682965
JB		 2445}
2446
2447static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2448{
4c476991 2449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2450 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2451
4c476991
JB		 2452 if (!rdev->ops->del_virtual_intf)
2453 return -EOPNOTSUPP;
55682965 2454
84efbb84
JB		 2455 /*
2456 * If we remove a wireless device without a netdev then clear
2457 * user_ptr[1] so that nl80211_post_doit won't dereference it
2458 * to check if it needs to do dev_put(). Otherwise it crashes
2459 * since the wdev has been freed, unlike with a netdev where
2460 * we need the dev_put() for the netdev to really be freed.
2461 */
2462 if (!wdev->netdev)
2463 info->user_ptr[1] = NULL;
2464
e35e4d28 2465 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2466}
2467
1d9d9213
SW		 2468static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2469{
2470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2471 struct net_device *dev = info->user_ptr[1];
2472 u16 noack_map;
2473
2474 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2475 return -EINVAL;
2476
2477 if (!rdev->ops->set_noack_map)
2478 return -EOPNOTSUPP;
2479
2480 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2481
e35e4d28 2482 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2483}
2484
41ade00f
JB		 2485struct get_key_cookie {
2486 struct sk_buff *msg;
2487 int error;
b9454e83 2488 int idx;
41ade00f
JB		 2489};
2490
2491static void get_key_callback(void *c, struct key_params *params)
2492{
b9454e83 2493 struct nlattr *key;
41ade00f
JB		 2494 struct get_key_cookie *cookie = c;
2495
9360ffd1
DM		 2496 if ((params->key &&
2497 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2498 params->key_len, params->key)) ||
2499 (params->seq &&
2500 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2501 params->seq_len, params->seq)) ||
2502 (params->cipher &&
2503 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2504 params->cipher)))
2505 goto nla_put_failure;
41ade00f 2506
b9454e83
JB		 2507 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2508 if (!key)
2509 goto nla_put_failure;
2510
9360ffd1
DM		 2511 if ((params->key &&
2512 nla_put(cookie->msg, NL80211_KEY_DATA,
2513 params->key_len, params->key)) ||
2514 (params->seq &&
2515 nla_put(cookie->msg, NL80211_KEY_SEQ,
2516 params->seq_len, params->seq)) ||
2517 (params->cipher &&
2518 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2519 params->cipher)))
2520 goto nla_put_failure;
b9454e83 2521
9360ffd1
DM		 2522 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2523 goto nla_put_failure;
b9454e83
JB		 2524
2525 nla_nest_end(cookie->msg, key);
2526
41ade00f
JB		 2527 return;
2528 nla_put_failure:
2529 cookie->error = 1;
2530}
2531
2532static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2533{
4c476991 2534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2535 int err;
4c476991 2536 struct net_device *dev = info->user_ptr[1];
41ade00f 2537 u8 key_idx = 0;
e31b8213
JB		 2538 const u8 *mac_addr = NULL;
2539 bool pairwise;
41ade00f
JB		 2540 struct get_key_cookie cookie = {
2541 .error = 0,
2542 };
2543 void *hdr;
2544 struct sk_buff *msg;
2545
2546 if (info->attrs[NL80211_ATTR_KEY_IDX])
2547 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2548
3cfcf6ac 2549 if (key_idx > 5)
41ade00f
JB		 2550 return -EINVAL;
2551
2552 if (info->attrs[NL80211_ATTR_MAC])
2553 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2554
e31b8213
JB		 2555 pairwise = !!mac_addr;
2556 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2557 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2558 if (kt >= NUM_NL80211_KEYTYPES)
2559 return -EINVAL;
2560 if (kt != NL80211_KEYTYPE_GROUP &&
2561 kt != NL80211_KEYTYPE_PAIRWISE)
2562 return -EINVAL;
2563 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2564 }
2565
4c476991
JB		 2566 if (!rdev->ops->get_key)
2567 return -EOPNOTSUPP;
41ade00f 2568
fd2120ca 2569 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2570 if (!msg)
2571 return -ENOMEM;
41ade00f 2572
15e47304 2573 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2574 NL80211_CMD_NEW_KEY);
4c476991
JB		 2575 if (IS_ERR(hdr))
2576 return PTR_ERR(hdr);
41ade00f
JB		 2577
2578 cookie.msg = msg;
b9454e83 2579 cookie.idx = key_idx;
41ade00f 2580
9360ffd1
DM		 2581 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2582 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2583 goto nla_put_failure;
2584 if (mac_addr &&
2585 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2586 goto nla_put_failure;
41ade00f 2587
e31b8213
JB		 2588 if (pairwise && mac_addr &&
2589 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2590 return -ENOENT;
2591
e35e4d28
HG		 2592 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2593 get_key_callback);
41ade00f
JB		 2594
2595 if (err)
6c95e2a2 2596 goto free_msg;
41ade00f
JB		 2597
2598 if (cookie.error)
2599 goto nla_put_failure;
2600
2601 genlmsg_end(msg, hdr);
4c476991 2602 return genlmsg_reply(msg, info);
41ade00f
JB		 2603
2604 nla_put_failure:
2605 err = -ENOBUFS;
6c95e2a2 2606 free_msg:
41ade00f 2607 nlmsg_free(msg);
41ade00f
JB		 2608 return err;
2609}
2610
2611static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2612{
4c476991 2613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2614 struct key_parse key;
41ade00f 2615 int err;
4c476991 2616 struct net_device *dev = info->user_ptr[1];
41ade00f 2617
b9454e83
JB		 2618 err = nl80211_parse_key(info, &key);
2619 if (err)
2620 return err;
41ade00f 2621
b9454e83 2622 if (key.idx < 0)
41ade00f
JB		 2623 return -EINVAL;
2624
b9454e83
JB		 2625 /* only support setting default key */
2626 if (!key.def && !key.defmgmt)
41ade00f
JB		 2627 return -EINVAL;
2628
dbd2fd65 2629 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2630
dbd2fd65
JB		 2631 if (key.def) {
2632 if (!rdev->ops->set_default_key) {
2633 err = -EOPNOTSUPP;
2634 goto out;
2635 }
41ade00f 2636
dbd2fd65
JB		 2637 err = nl80211_key_allowed(dev->ieee80211_ptr);
2638 if (err)
2639 goto out;
2640
e35e4d28 2641 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2642 key.def_uni, key.def_multi);
2643
2644 if (err)
2645 goto out;
fffd0934 2646
3d23e349 2647#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2648 dev->ieee80211_ptr->wext.default_key = key.idx;
2649#endif
2650 } else {
2651 if (key.def_uni || !key.def_multi) {
2652 err = -EINVAL;
2653 goto out;
2654 }
2655
2656 if (!rdev->ops->set_default_mgmt_key) {
2657 err = -EOPNOTSUPP;
2658 goto out;
2659 }
2660
2661 err = nl80211_key_allowed(dev->ieee80211_ptr);
2662 if (err)
2663 goto out;
2664
e35e4d28 2665 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2666 if (err)
2667 goto out;
2668
2669#ifdef CONFIG_CFG80211_WEXT
2670 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2671#endif
dbd2fd65
JB		 2672 }
2673
2674 out:
fffd0934 2675 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2676
41ade00f
JB		 2677 return err;
2678}
2679
2680static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2681{
4c476991 2682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2683 int err;
4c476991 2684 struct net_device *dev = info->user_ptr[1];
b9454e83 2685 struct key_parse key;
e31b8213 2686 const u8 *mac_addr = NULL;
41ade00f 2687
b9454e83
JB		 2688 err = nl80211_parse_key(info, &key);
2689 if (err)
2690 return err;
41ade00f 2691
b9454e83 2692 if (!key.p.key)
41ade00f
JB		 2693 return -EINVAL;
2694
41ade00f
JB		 2695 if (info->attrs[NL80211_ATTR_MAC])
2696 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2697
e31b8213
JB		 2698 if (key.type == -1) {
2699 if (mac_addr)
2700 key.type = NL80211_KEYTYPE_PAIRWISE;
2701 else
2702 key.type = NL80211_KEYTYPE_GROUP;
2703 }
2704
2705 /* for now */
2706 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2707 key.type != NL80211_KEYTYPE_GROUP)
2708 return -EINVAL;
2709
4c476991
JB		 2710 if (!rdev->ops->add_key)
2711 return -EOPNOTSUPP;
25e47c18 2712
e31b8213
JB		 2713 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2714 key.type == NL80211_KEYTYPE_PAIRWISE,
2715 mac_addr))
4c476991 2716 return -EINVAL;
41ade00f 2717
fffd0934
JB		 2718 wdev_lock(dev->ieee80211_ptr);
2719 err = nl80211_key_allowed(dev->ieee80211_ptr);
2720 if (!err)
e35e4d28
HG		 2721 err = rdev_add_key(rdev, dev, key.idx,
2722 key.type == NL80211_KEYTYPE_PAIRWISE,
2723 mac_addr, &key.p);
fffd0934 2724 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2725
41ade00f
JB		 2726 return err;
2727}
2728
2729static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2730{
4c476991 2731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2732 int err;
4c476991 2733 struct net_device *dev = info->user_ptr[1];
41ade00f 2734 u8 *mac_addr = NULL;
b9454e83 2735 struct key_parse key;
41ade00f 2736
b9454e83
JB		 2737 err = nl80211_parse_key(info, &key);
2738 if (err)
2739 return err;
41ade00f
JB		 2740
2741 if (info->attrs[NL80211_ATTR_MAC])
2742 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2743
e31b8213
JB		 2744 if (key.type == -1) {
2745 if (mac_addr)
2746 key.type = NL80211_KEYTYPE_PAIRWISE;
2747 else
2748 key.type = NL80211_KEYTYPE_GROUP;
2749 }
2750
2751 /* for now */
2752 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2753 key.type != NL80211_KEYTYPE_GROUP)
2754 return -EINVAL;
2755
4c476991
JB		 2756 if (!rdev->ops->del_key)
2757 return -EOPNOTSUPP;
41ade00f 2758
fffd0934
JB		 2759 wdev_lock(dev->ieee80211_ptr);
2760 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2761
2762 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2763 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2764 err = -ENOENT;
2765
fffd0934 2766 if (!err)
e35e4d28
HG		 2767 err = rdev_del_key(rdev, dev, key.idx,
2768 key.type == NL80211_KEYTYPE_PAIRWISE,
2769 mac_addr);
41ade00f 2770
3d23e349 2771#ifdef CONFIG_CFG80211_WEXT
08645126 2772 if (!err) {
b9454e83 2773 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2774 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2775 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2776 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2777 }
2778#endif
fffd0934 2779 wdev_unlock(dev->ieee80211_ptr);
08645126 2780
41ade00f
JB		 2781 return err;
2782}
2783
77765eaf
VT		 2784/* This function returns an error or the number of nested attributes */
2785static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2786{
2787 struct nlattr *attr;
2788 int n_entries = 0, tmp;
2789
2790 nla_for_each_nested(attr, nl_attr, tmp) {
2791 if (nla_len(attr) != ETH_ALEN)
2792 return -EINVAL;
2793
2794 n_entries++;
2795 }
2796
2797 return n_entries;
2798}
2799
2800/*
2801 * This function parses ACL information and allocates memory for ACL data.
2802 * On successful return, the calling function is responsible to free the
2803 * ACL buffer returned by this function.
2804 */
2805static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2806 struct genl_info *info)
2807{
2808 enum nl80211_acl_policy acl_policy;
2809 struct nlattr *attr;
2810 struct cfg80211_acl_data *acl;
2811 int i = 0, n_entries, tmp;
2812
2813 if (!wiphy->max_acl_mac_addrs)
2814 return ERR_PTR(-EOPNOTSUPP);
2815
2816 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2817 return ERR_PTR(-EINVAL);
2818
2819 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2820 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2821 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2822 return ERR_PTR(-EINVAL);
2823
2824 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2825 return ERR_PTR(-EINVAL);
2826
2827 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2828 if (n_entries < 0)
2829 return ERR_PTR(n_entries);
2830
2831 if (n_entries > wiphy->max_acl_mac_addrs)
2832 return ERR_PTR(-ENOTSUPP);
2833
2834 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2835 GFP_KERNEL);
2836 if (!acl)
2837 return ERR_PTR(-ENOMEM);
2838
2839 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2840 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2841 i++;
2842 }
2843
2844 acl->n_acl_entries = n_entries;
2845 acl->acl_policy = acl_policy;
2846
2847 return acl;
2848}
2849
2850static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2851{
2852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2853 struct net_device *dev = info->user_ptr[1];
2854 struct cfg80211_acl_data *acl;
2855 int err;
2856
2857 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2858 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2859 return -EOPNOTSUPP;
2860
2861 if (!dev->ieee80211_ptr->beacon_interval)
2862 return -EINVAL;
2863
2864 acl = parse_acl_data(&rdev->wiphy, info);
2865 if (IS_ERR(acl))
2866 return PTR_ERR(acl);
2867
2868 err = rdev_set_mac_acl(rdev, dev, acl);
2869
2870 kfree(acl);
2871
2872 return err;
2873}
2874
8860020e
JB		 2875static int nl80211_parse_beacon(struct genl_info *info,
2876 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2877{
8860020e 2878 bool haveinfo = false;
ed1b6cc7 2879
9946ecfb
JM		 2880 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2881 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2882 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2883 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2884 return -EINVAL;
2885
8860020e 2886 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2887
ed1b6cc7 2888 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2889 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2890 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2891 if (!bcn->head_len)
2892 return -EINVAL;
2893 haveinfo = true;
ed1b6cc7
JB		 2894 }
2895
2896 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2897 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2898 bcn->tail_len =
ed1b6cc7 2899 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2900 haveinfo = true;
ed1b6cc7
JB		 2901 }
2902
4c476991
JB		 2903 if (!haveinfo)
2904 return -EINVAL;
3b85875a 2905
9946ecfb 2906 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2907 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2908 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2909 }
2910
2911 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2912 bcn->proberesp_ies =
9946ecfb 2913 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2914 bcn->proberesp_ies_len =
9946ecfb
JM		 2915 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2916 }
2917
2918 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2919 bcn->assocresp_ies =
9946ecfb 2920 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2921 bcn->assocresp_ies_len =
9946ecfb
JM		 2922 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2923 }
2924
00f740e1 2925 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2926 bcn->probe_resp =
00f740e1 2927 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2928 bcn->probe_resp_len =
00f740e1
AN		 2929 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2930 }
2931
8860020e
JB		 2932 return 0;
2933}
2934
46c1dd0c
FF		 2935static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2936 struct cfg80211_ap_settings *params)
2937{
2938 struct wireless_dev *wdev;
2939 bool ret = false;
2940
89a54e48 2941 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2942 if (wdev->iftype != NL80211_IFTYPE_AP &&
2943 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2944 continue;
2945
683b6d3b 2946 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2947 continue;
2948
683b6d3b 2949 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2950 ret = true;
2951 break;
2952 }
2953
46c1dd0c
FF		 2954 return ret;
2955}
2956
e39e5b5e
JM		 2957static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2958 enum nl80211_auth_type auth_type,
2959 enum nl80211_commands cmd)
2960{
2961 if (auth_type > NL80211_AUTHTYPE_MAX)
2962 return false;
2963
2964 switch (cmd) {
2965 case NL80211_CMD_AUTHENTICATE:
2966 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2967 auth_type == NL80211_AUTHTYPE_SAE)
2968 return false;
2969 return true;
2970 case NL80211_CMD_CONNECT:
2971 case NL80211_CMD_START_AP:
2972 /* SAE not supported yet */
2973 if (auth_type == NL80211_AUTHTYPE_SAE)
2974 return false;
2975 return true;
2976 default:
2977 return false;
2978 }
2979}
2980
8860020e
JB		 2981static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2982{
2983 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2984 struct net_device *dev = info->user_ptr[1];
2985 struct wireless_dev *wdev = dev->ieee80211_ptr;
2986 struct cfg80211_ap_settings params;
2987 int err;
04f39047 2988 u8 radar_detect_width = 0;
8860020e
JB		 2989
2990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2992 return -EOPNOTSUPP;
2993
2994 if (!rdev->ops->start_ap)
2995 return -EOPNOTSUPP;
2996
2997 if (wdev->beacon_interval)
2998 return -EALREADY;
2999
3000 memset(&params, 0, sizeof(params));
3001
3002 /* these are required for START_AP */
3003 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3004 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3005 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3006 return -EINVAL;
3007
3008 err = nl80211_parse_beacon(info, &params.beacon);
3009 if (err)
3010 return err;
3011
3012 params.beacon_interval =
3013 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3014 params.dtim_period =
3015 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3016
3017 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3018 if (err)
3019 return err;
3020
3021 /*
3022 * In theory, some of these attributes should be required here
3023 * but since they were not used when the command was originally
3024 * added, keep them optional for old user space programs to let
3025 * them continue to work with drivers that do not need the
3026 * additional information -- drivers must check!
3027 */
3028 if (info->attrs[NL80211_ATTR_SSID]) {
3029 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3030 params.ssid_len =
3031 nla_len(info->attrs[NL80211_ATTR_SSID]);
3032 if (params.ssid_len == 0 ||
3033 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3034 return -EINVAL;
3035 }
3036
3037 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3038 params.hidden_ssid = nla_get_u32(
3039 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3040 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3041 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3042 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3043 return -EINVAL;
3044 }
3045
3046 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3047
3048 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3049 params.auth_type = nla_get_u32(
3050 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3051 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3052 NL80211_CMD_START_AP))
8860020e
JB		 3053 return -EINVAL;
3054 } else
3055 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3056
3057 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3058 NL80211_MAX_NR_CIPHER_SUITES);
3059 if (err)
3060 return err;
3061
1b658f11
VT		 3062 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3063 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3064 return -EOPNOTSUPP;
3065 params.inactivity_timeout = nla_get_u16(
3066 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3067 }
3068
53cabad7
JB		 3069 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3070 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3071 return -EINVAL;
3072 params.p2p_ctwindow =
3073 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3074 if (params.p2p_ctwindow > 127)
3075 return -EINVAL;
3076 if (params.p2p_ctwindow != 0 &&
3077 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3078 return -EINVAL;
3079 }
3080
3081 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3082 u8 tmp;
3083
3084 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3085 return -EINVAL;
3086 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3087 if (tmp > 1)
3088 return -EINVAL;
3089 params.p2p_opp_ps = tmp;
3090 if (params.p2p_opp_ps != 0 &&
3091 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3092 return -EINVAL;
3093 }
3094
aa430da4 3095 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3096 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3097 if (err)
3098 return err;
3099 } else if (wdev->preset_chandef.chan) {
3100 params.chandef = wdev->preset_chandef;
46c1dd0c 3101 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3102 return -EINVAL;
3103
683b6d3b 3104 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3105 return -EINVAL;
3106
04f39047
SW		 3107 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3108 if (err < 0)
3109 return err;
3110 if (err) {
3111 radar_detect_width = BIT(params.chandef.width);
3112 params.radar_required = true;
3113 }
3114
04f39047
SW		 3115 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3116 params.chandef.chan,
3117 CHAN_MODE_SHARED,
3118 radar_detect_width);
e4e32459
MK		 3119 if (err)
3120 return err;
3121
77765eaf
VT		 3122 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3123 params.acl = parse_acl_data(&rdev->wiphy, info);
3124 if (IS_ERR(params.acl))
3125 return PTR_ERR(params.acl);
3126 }
3127
e35e4d28 3128 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3129 if (!err) {
683b6d3b 3130 wdev->preset_chandef = params.chandef;
8860020e 3131 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3132 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3133 wdev->ssid_len = params.ssid_len;
3134 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3135 }
77765eaf
VT		 3136
3137 kfree(params.acl);
3138
56d1893d 3139 return err;
ed1b6cc7
JB		 3140}
3141
8860020e
JB		 3142static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3143{
3144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3145 struct net_device *dev = info->user_ptr[1];
3146 struct wireless_dev *wdev = dev->ieee80211_ptr;
3147 struct cfg80211_beacon_data params;
3148 int err;
3149
3150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3152 return -EOPNOTSUPP;
3153
3154 if (!rdev->ops->change_beacon)
3155 return -EOPNOTSUPP;
3156
3157 if (!wdev->beacon_interval)
3158 return -EINVAL;
3159
3160 err = nl80211_parse_beacon(info, &params);
3161 if (err)
3162 return err;
3163
e35e4d28 3164 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3165}
3166
3167static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3168{
4c476991
JB		 3169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3170 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3171
60771780 3172 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3173}
3174
5727ef1b
JB		 3175static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3176 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3177 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3178 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3179 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3180 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3181 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3182};
3183
eccb8e8f 3184static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3185 enum nl80211_iftype iftype,
eccb8e8f 3186 struct station_parameters *params)
5727ef1b
JB		 3187{
3188 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3189 struct nlattr *nla;
5727ef1b
JB		 3190 int flag;
3191
eccb8e8f
JB		 3192 /*
3193 * Try parsing the new attribute first so userspace
3194 * can specify both for older kernels.
3195 */
3196 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3197 if (nla) {
3198 struct nl80211_sta_flag_update *sta_flags;
3199
3200 sta_flags = nla_data(nla);
3201 params->sta_flags_mask = sta_flags->mask;
3202 params->sta_flags_set = sta_flags->set;
77ee7c89 3203 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3204 if ((params->sta_flags_mask |
3205 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3206 return -EINVAL;
3207 return 0;
3208 }
3209
3210 /* if present, parse the old attribute */
5727ef1b 3211
eccb8e8f 3212 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3213 if (!nla)
3214 return 0;
3215
3216 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3217 nla, sta_flags_policy))
3218 return -EINVAL;
3219
bdd3ae3d
JB		 3220 /*
3221 * Only allow certain flags for interface types so that
3222 * other attributes are silently ignored. Remember that
3223 * this is backward compatibility code with old userspace
3224 * and shouldn't be hit in other cases anyway.
3225 */
3226 switch (iftype) {
3227 case NL80211_IFTYPE_AP:
3228 case NL80211_IFTYPE_AP_VLAN:
3229 case NL80211_IFTYPE_P2P_GO:
3230 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3231 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3232 BIT(NL80211_STA_FLAG_WME) |
3233 BIT(NL80211_STA_FLAG_MFP);
3234 break;
3235 case NL80211_IFTYPE_P2P_CLIENT:
3236 case NL80211_IFTYPE_STATION:
3237 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3238 BIT(NL80211_STA_FLAG_TDLS_PEER);
3239 break;
3240 case NL80211_IFTYPE_MESH_POINT:
3241 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3242 BIT(NL80211_STA_FLAG_MFP) |
3243 BIT(NL80211_STA_FLAG_AUTHORIZED);
3244 default:
3245 return -EINVAL;
3246 }
5727ef1b 3247
3383b5a6
JB		 3248 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3249 if (flags[flag]) {
eccb8e8f 3250 params->sta_flags_set |= (1<<flag);
5727ef1b 3251
3383b5a6
JB		 3252 /* no longer support new API additions in old API */
3253 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3254 return -EINVAL;
3255 }
3256 }
3257
5727ef1b
JB		 3258 return 0;
3259}
3260
c8dcfd8a
FF		 3261static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3262 int attr)
3263{
3264 struct nlattr *rate;
8eb41c8d
VK		 3265 u32 bitrate;
3266 u16 bitrate_compat;
c8dcfd8a
FF		 3267
3268 rate = nla_nest_start(msg, attr);
3269 if (!rate)
db9c64cf 3270 return false;
c8dcfd8a
FF		 3271
3272 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3273 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3274 /* report 16-bit bitrate only if we can */
3275 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3276 if (bitrate > 0 &&
3277 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3278 return false;
3279 if (bitrate_compat > 0 &&
3280 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3281 return false;
3282
3283 if (info->flags & RATE_INFO_FLAGS_MCS) {
3284 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3285 return false;
3286 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3287 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3288 return false;
3289 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3290 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3291 return false;
3292 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3293 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3294 return false;
3295 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3296 return false;
3297 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3298 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3299 return false;
3300 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3301 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3302 return false;
3303 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3304 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3305 return false;
3306 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3307 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3308 return false;
3309 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3310 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3311 return false;
3312 }
c8dcfd8a
FF		 3313
3314 nla_nest_end(msg, rate);
3315 return true;
c8dcfd8a
FF		 3316}
3317
119363c7
FF		 3318static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3319 int id)
3320{
3321 void *attr;
3322 int i = 0;
3323
3324 if (!mask)
3325 return true;
3326
3327 attr = nla_nest_start(msg, id);
3328 if (!attr)
3329 return false;
3330
3331 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3332 if (!(mask & BIT(i)))
3333 continue;
3334
3335 if (nla_put_u8(msg, i, signal[i]))
3336 return false;
3337 }
3338
3339 nla_nest_end(msg, attr);
3340
3341 return true;
3342}
3343
15e47304 3344static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3345 int flags,
3346 struct cfg80211_registered_device *rdev,
3347 struct net_device *dev,
98b62183 3348 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3349{
3350 void *hdr;
f4263c98 3351 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3352
15e47304 3353 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3354 if (!hdr)
3355 return -1;
3356
9360ffd1
DM		 3357 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3358 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3359 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3360 goto nla_put_failure;
f5ea9120 3361
2ec600d6
LCC		 3362 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3363 if (!sinfoattr)
fd5b74dc 3364 goto nla_put_failure;
9360ffd1
DM		 3365 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3366 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3367 sinfo->connected_time))
3368 goto nla_put_failure;
3369 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3370 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3371 sinfo->inactive_time))
3372 goto nla_put_failure;
42745e03
VK		 3373 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3374 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3375 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3376 (u32)sinfo->rx_bytes))
9360ffd1 3377 goto nla_put_failure;
42745e03 3378 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3379 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3380 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3381 (u32)sinfo->tx_bytes))
3382 goto nla_put_failure;
3383 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3384 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3385 sinfo->rx_bytes))
3386 goto nla_put_failure;
3387 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3388 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3389 sinfo->tx_bytes))
3390 goto nla_put_failure;
3391 if ((sinfo->filled & STATION_INFO_LLID) &&
3392 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3393 goto nla_put_failure;
3394 if ((sinfo->filled & STATION_INFO_PLID) &&
3395 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3396 goto nla_put_failure;
3397 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3398 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3399 sinfo->plink_state))
3400 goto nla_put_failure;
66266b3a
JL		 3401 switch (rdev->wiphy.signal_type) {
3402 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3403 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3404 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3405 sinfo->signal))
3406 goto nla_put_failure;
3407 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3408 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3409 sinfo->signal_avg))
3410 goto nla_put_failure;
66266b3a
JL		 3411 break;
3412 default:
3413 break;
3414 }
119363c7
FF		 3415 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3416 if (!nl80211_put_signal(msg, sinfo->chains,
3417 sinfo->chain_signal,
3418 NL80211_STA_INFO_CHAIN_SIGNAL))
3419 goto nla_put_failure;
3420 }
3421 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3422 if (!nl80211_put_signal(msg, sinfo->chains,
3423 sinfo->chain_signal_avg,
3424 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3425 goto nla_put_failure;
3426 }
420e7fab 3427 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3428 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3429 NL80211_STA_INFO_TX_BITRATE))
3430 goto nla_put_failure;
3431 }
3432 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3433 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3434 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3435 goto nla_put_failure;
420e7fab 3436 }
9360ffd1
DM		 3437 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3438 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3439 sinfo->rx_packets))
3440 goto nla_put_failure;
3441 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3442 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3443 sinfo->tx_packets))
3444 goto nla_put_failure;
3445 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3446 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3447 sinfo->tx_retries))
3448 goto nla_put_failure;
3449 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3450 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3451 sinfo->tx_failed))
3452 goto nla_put_failure;
3453 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3454 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3455 sinfo->beacon_loss_count))
3456 goto nla_put_failure;
3b1c5a53
MP		 3457 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3458 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3459 sinfo->local_pm))
3460 goto nla_put_failure;
3461 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3462 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3463 sinfo->peer_pm))
3464 goto nla_put_failure;
3465 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3466 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3467 sinfo->nonpeer_pm))
3468 goto nla_put_failure;
f4263c98
PS		 3469 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3470 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3471 if (!bss_param)
3472 goto nla_put_failure;
3473
9360ffd1
DM		 3474 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3475 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3476 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3477 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3478 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3479 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3480 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3481 sinfo->bss_param.dtim_period) ||
3482 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3483 sinfo->bss_param.beacon_interval))
3484 goto nla_put_failure;
f4263c98
PS		 3485
3486 nla_nest_end(msg, bss_param);
3487 }
9360ffd1
DM		 3488 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3489 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3490 sizeof(struct nl80211_sta_flag_update),
3491 &sinfo->sta_flags))
3492 goto nla_put_failure;
7eab0f64
JL		 3493 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3494 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3495 sinfo->t_offset))
3496 goto nla_put_failure;
2ec600d6 3497 nla_nest_end(msg, sinfoattr);
fd5b74dc 3498
9360ffd1
DM		 3499 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3500 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3501 sinfo->assoc_req_ies))
3502 goto nla_put_failure;
50d3dfb7 3503
fd5b74dc
JB		 3504 return genlmsg_end(msg, hdr);
3505
3506 nla_put_failure:
bc3ed28c
TG		 3507 genlmsg_cancel(msg, hdr);
3508 return -EMSGSIZE;
fd5b74dc
JB		 3509}
3510
2ec600d6 3511static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3512 struct netlink_callback *cb)
2ec600d6 3513{
2ec600d6
LCC		 3514 struct station_info sinfo;
3515 struct cfg80211_registered_device *dev;
97990a06 3516 struct wireless_dev *wdev;
2ec600d6 3517 u8 mac_addr[ETH_ALEN];
97990a06 3518 int sta_idx = cb->args[2];
2ec600d6 3519 int err;
2ec600d6 3520
97990a06 3521 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3522 if (err)
3523 return err;
bba95fef 3524
97990a06
JB		 3525 if (!wdev->netdev) {
3526 err = -EINVAL;
3527 goto out_err;
3528 }
3529
bba95fef 3530 if (!dev->ops->dump_station) {
eec60b03 3531 err = -EOPNOTSUPP;
bba95fef
JB		 3532 goto out_err;
3533 }
3534
bba95fef 3535 while (1) {
f612cedf 3536 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3537 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3538 mac_addr, &sinfo);
bba95fef
JB		 3539 if (err == -ENOENT)
3540 break;
3541 if (err)
3b85875a 3542 goto out_err;
bba95fef
JB		 3543
3544 if (nl80211_send_station(skb,
15e47304 3545 NETLINK_CB(cb->skb).portid,
bba95fef 3546 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3547 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3548 &sinfo) < 0)
3549 goto out;
3550
3551 sta_idx++;
3552 }
3553
3554
3555 out:
97990a06 3556 cb->args[2] = sta_idx;
bba95fef 3557 err = skb->len;
bba95fef 3558 out_err:
97990a06 3559 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3560
3561 return err;
2ec600d6 3562}
fd5b74dc 3563
5727ef1b
JB		 3564static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3565{
4c476991
JB		 3566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3567 struct net_device *dev = info->user_ptr[1];
2ec600d6 3568 struct station_info sinfo;
fd5b74dc
JB		 3569 struct sk_buff *msg;
3570 u8 *mac_addr = NULL;
4c476991 3571 int err;
fd5b74dc 3572
2ec600d6 3573 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3574
3575 if (!info->attrs[NL80211_ATTR_MAC])
3576 return -EINVAL;
3577
3578 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3579
4c476991
JB		 3580 if (!rdev->ops->get_station)
3581 return -EOPNOTSUPP;
3b85875a 3582
e35e4d28 3583 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3584 if (err)
4c476991 3585 return err;
2ec600d6 3586
fd2120ca 3587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3588 if (!msg)
4c476991 3589 return -ENOMEM;
fd5b74dc 3590
15e47304 3591 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3592 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3593 nlmsg_free(msg);
3594 return -ENOBUFS;
3595 }
3b85875a 3596
4c476991 3597 return genlmsg_reply(msg, info);
5727ef1b
JB		 3598}
3599
77ee7c89
JB		 3600int cfg80211_check_station_change(struct wiphy *wiphy,
3601 struct station_parameters *params,
3602 enum cfg80211_station_type statype)
3603{
3604 if (params->listen_interval != -1)
3605 return -EINVAL;
3606 if (params->aid)
3607 return -EINVAL;
3608
3609 /* When you run into this, adjust the code below for the new flag */
3610 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3611
3612 switch (statype) {
eef941e6
TP		 3613 case CFG80211_STA_MESH_PEER_KERNEL:
3614 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3615 /*
3616 * No ignoring the TDLS flag here -- the userspace mesh
3617 * code doesn't have the bug of including TDLS in the
3618 * mask everywhere.
3619 */
3620 if (params->sta_flags_mask &
3621 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3622 BIT(NL80211_STA_FLAG_MFP) |
3623 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3624 return -EINVAL;
3625 break;
3626 case CFG80211_STA_TDLS_PEER_SETUP:
3627 case CFG80211_STA_TDLS_PEER_ACTIVE:
3628 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3629 return -EINVAL;
3630 /* ignore since it can't change */
3631 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3632 break;
3633 default:
3634 /* disallow mesh-specific things */
3635 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3636 return -EINVAL;
3637 if (params->local_pm)
3638 return -EINVAL;
3639 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3640 return -EINVAL;
3641 }
3642
3643 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3644 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3645 /* TDLS can't be set, ... */
3646 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3647 return -EINVAL;
3648 /*
3649 * ... but don't bother the driver with it. This works around
3650 * a hostapd/wpa_supplicant issue -- it always includes the
3651 * TLDS_PEER flag in the mask even for AP mode.
3652 */
3653 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3654 }
3655
3656 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3657 /* reject other things that can't change */
3658 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3659 return -EINVAL;
3660 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3661 return -EINVAL;
3662 if (params->supported_rates)
3663 return -EINVAL;
3664 if (params->ext_capab || params->ht_capa || params->vht_capa)
3665 return -EINVAL;
3666 }
3667
3668 if (statype != CFG80211_STA_AP_CLIENT) {
3669 if (params->vlan)
3670 return -EINVAL;
3671 }
3672
3673 switch (statype) {
3674 case CFG80211_STA_AP_MLME_CLIENT:
3675 /* Use this only for authorizing/unauthorizing a station */
3676 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3677 return -EOPNOTSUPP;
3678 break;
3679 case CFG80211_STA_AP_CLIENT:
3680 /* accept only the listed bits */
3681 if (params->sta_flags_mask &
3682 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3683 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3684 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3685 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3686 BIT(NL80211_STA_FLAG_WME) |
3687 BIT(NL80211_STA_FLAG_MFP)))
3688 return -EINVAL;
3689
3690 /* but authenticated/associated only if driver handles it */
3691 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3692 params->sta_flags_mask &
3693 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3694 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3695 return -EINVAL;
3696 break;
3697 case CFG80211_STA_IBSS:
3698 case CFG80211_STA_AP_STA:
3699 /* reject any changes other than AUTHORIZED */
3700 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3701 return -EINVAL;
3702 break;
3703 case CFG80211_STA_TDLS_PEER_SETUP:
3704 /* reject any changes other than AUTHORIZED or WME */
3705 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3706 BIT(NL80211_STA_FLAG_WME)))
3707 return -EINVAL;
3708 /* force (at least) rates when authorizing */
3709 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3710 !params->supported_rates)
3711 return -EINVAL;
3712 break;
3713 case CFG80211_STA_TDLS_PEER_ACTIVE:
3714 /* reject any changes */
3715 return -EINVAL;
eef941e6 3716 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3717 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3718 return -EINVAL;
3719 break;
eef941e6 3720 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3721 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3722 return -EINVAL;
3723 break;
3724 }
3725
3726 return 0;
3727}
3728EXPORT_SYMBOL(cfg80211_check_station_change);
3729
5727ef1b 3730/*
c258d2de 3731 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3732 */
80b99899
JB		 3733static struct net_device *get_vlan(struct genl_info *info,
3734 struct cfg80211_registered_device *rdev)
5727ef1b 3735{
463d0183 3736 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3737 struct net_device *v;
3738 int ret;
3739
3740 if (!vlanattr)
3741 return NULL;
3742
3743 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3744 if (!v)
3745 return ERR_PTR(-ENODEV);
3746
3747 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3748 ret = -EINVAL;
3749 goto error;
5727ef1b 3750 }
80b99899 3751
77ee7c89
JB		 3752 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3753 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3754 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3755 ret = -EINVAL;
3756 goto error;
3757 }
3758
80b99899
JB		 3759 if (!netif_running(v)) {
3760 ret = -ENETDOWN;
3761 goto error;
3762 }
3763
3764 return v;
3765 error:
3766 dev_put(v);
3767 return ERR_PTR(ret);
5727ef1b
JB		 3768}
3769
df881293
JM		 3770static struct nla_policy
3771nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3772 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3773 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3774};
3775
ff276691
JB		 3776static int nl80211_parse_sta_wme(struct genl_info *info,
3777 struct station_parameters *params)
df881293 3778{
df881293
JM		 3779 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3780 struct nlattr *nla;
3781 int err;
3782
df881293
JM		 3783 /* parse WME attributes if present */
3784 if (!info->attrs[NL80211_ATTR_STA_WME])
3785 return 0;
3786
3787 nla = info->attrs[NL80211_ATTR_STA_WME];
3788 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3789 nl80211_sta_wme_policy);
3790 if (err)
3791 return err;
3792
3793 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3794 params->uapsd_queues = nla_get_u8(
3795 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3796 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3797 return -EINVAL;
3798
3799 if (tb[NL80211_STA_WME_MAX_SP])
3800 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3801
3802 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3803 return -EINVAL;
3804
3805 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3806
3807 return 0;
3808}
3809
ff276691
JB		 3810static int nl80211_set_station_tdls(struct genl_info *info,
3811 struct station_parameters *params)
3812{
3813 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3814 if (info->attrs[NL80211_ATTR_PEER_AID])
3815 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3816 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3817 params->ht_capa =
3818 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3819 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3820 params->vht_capa =
3821 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3822
3823 return nl80211_parse_sta_wme(info, params);
3824}
3825
5727ef1b
JB		 3826static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3827{
4c476991 3828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3829 struct net_device *dev = info->user_ptr[1];
5727ef1b 3830 struct station_parameters params;
77ee7c89
JB		 3831 u8 *mac_addr;
3832 int err;
5727ef1b
JB		 3833
3834 memset(&params, 0, sizeof(params));
3835
3836 params.listen_interval = -1;
3837
77ee7c89
JB		 3838 if (!rdev->ops->change_station)
3839 return -EOPNOTSUPP;
3840
5727ef1b
JB		 3841 if (info->attrs[NL80211_ATTR_STA_AID])
3842 return -EINVAL;
3843
3844 if (!info->attrs[NL80211_ATTR_MAC])
3845 return -EINVAL;
3846
3847 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3848
3849 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3850 params.supported_rates =
3851 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3852 params.supported_rates_len =
3853 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3854 }
3855
9d62a986
JM		 3856 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3857 params.capability =
3858 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3859 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3860 }
3861
3862 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3863 params.ext_capab =
3864 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3865 params.ext_capab_len =
3866 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3867 }
3868
df881293 3869 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3870 return -EINVAL;
36aedc90 3871
bdd3ae3d 3872 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3873 return -EINVAL;
3874
f8bacc21 3875 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3876 params.plink_action =
f8bacc21
JB		 3877 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3878 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3879 return -EINVAL;
3880 }
2ec600d6 3881
f8bacc21 3882 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3883 params.plink_state =
f8bacc21
JB		 3884 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3885 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3886 return -EINVAL;
3887 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3888 }
9c3990aa 3889
3b1c5a53
MP		 3890 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3891 enum nl80211_mesh_power_mode pm = nla_get_u32(
3892 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3893
3894 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3895 pm > NL80211_MESH_POWER_MAX)
3896 return -EINVAL;
3897
3898 params.local_pm = pm;
3899 }
3900
77ee7c89
JB		 3901 /* Include parameters for TDLS peer (will check later) */
3902 err = nl80211_set_station_tdls(info, &params);
3903 if (err)
3904 return err;
3905
3906 params.vlan = get_vlan(info, rdev);
3907 if (IS_ERR(params.vlan))
3908 return PTR_ERR(params.vlan);
3909
a97f4424
JB		 3910 switch (dev->ieee80211_ptr->iftype) {
3911 case NL80211_IFTYPE_AP:
3912 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3913 case NL80211_IFTYPE_P2P_GO:
074ac8df 3914 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3915 case NL80211_IFTYPE_STATION:
267335d6 3916 case NL80211_IFTYPE_ADHOC:
a97f4424 3917 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 3918 break;
3919 default:
77ee7c89
JB		 3920 err = -EOPNOTSUPP;
3921 goto out_put_vlan;
034d655e
JB		 3922 }
3923
77ee7c89 3924 /* driver will call cfg80211_check_station_change() */
e35e4d28 3925 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3926
77ee7c89 3927 out_put_vlan:
5727ef1b
JB		 3928 if (params.vlan)
3929 dev_put(params.vlan);
3b85875a 3930
5727ef1b
JB		 3931 return err;
3932}
3933
3934static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3935{
4c476991 3936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3937 int err;
4c476991 3938 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3939 struct station_parameters params;
3940 u8 *mac_addr = NULL;
3941
3942 memset(&params, 0, sizeof(params));
3943
984c311b
JB		 3944 if (!rdev->ops->add_station)
3945 return -EOPNOTSUPP;
3946
5727ef1b
JB		 3947 if (!info->attrs[NL80211_ATTR_MAC])
3948 return -EINVAL;
3949
5727ef1b
JB		 3950 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3951 return -EINVAL;
3952
3953 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3954 return -EINVAL;
3955
5e4b6f56
JM		 3956 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3957 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 3958 return -EINVAL;
3959
5727ef1b
JB		 3960 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3961 params.supported_rates =
3962 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3963 params.supported_rates_len =
3964 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3965 params.listen_interval =
3966 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3967
5e4b6f56
JM		 3968 if (info->attrs[NL80211_ATTR_STA_AID])
3969 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3970 else
3971 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
0e956c13
TLSC		 3972 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3973 return -EINVAL;
51b50fbe 3974
9d62a986
JM		 3975 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3976 params.capability =
3977 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3978 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3979 }
3980
3981 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3982 params.ext_capab =
3983 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3984 params.ext_capab_len =
3985 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3986 }
3987
36aedc90
JM		 3988 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3989 params.ht_capa =
3990 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3991
f461be3e
MP		 3992 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3993 params.vht_capa =
3994 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3995
f8bacc21 3996 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3997 params.plink_action =
f8bacc21
JB		 3998 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3999 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4000 return -EINVAL;
4001 }
96b78dff 4002
ff276691
JB		 4003 err = nl80211_parse_sta_wme(info, &params);
4004 if (err)
4005 return err;
bdd90d5e 4006
bdd3ae3d 4007 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4008 return -EINVAL;
4009
77ee7c89
JB		 4010 /* When you run into this, adjust the code below for the new flag */
4011 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4012
bdd90d5e
JB		 4013 switch (dev->ieee80211_ptr->iftype) {
4014 case NL80211_IFTYPE_AP:
4015 case NL80211_IFTYPE_AP_VLAN:
4016 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4017 /* ignore WME attributes if iface/sta is not capable */
4018 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4019 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4020 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4021
bdd90d5e
JB		 4022 /* TDLS peers cannot be added */
4023 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 4024 return -EINVAL;
bdd90d5e
JB		 4025 /* but don't bother the driver with it */
4026 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4027
d582cffb
JB		 4028 /* allow authenticated/associated only if driver handles it */
4029 if (!(rdev->wiphy.features &
4030 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4031 params.sta_flags_mask &
4032 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4033 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4034 return -EINVAL;
4035
bdd90d5e
JB		 4036 /* must be last in here for error handling */
4037 params.vlan = get_vlan(info, rdev);
4038 if (IS_ERR(params.vlan))
4039 return PTR_ERR(params.vlan);
4040 break;
4041 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4042 /* ignore uAPSD data */
4043 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4044
d582cffb
JB		 4045 /* associated is disallowed */
4046 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4047 return -EINVAL;
bdd90d5e
JB		 4048 /* TDLS peers cannot be added */
4049 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4050 return -EINVAL;
4051 break;
4052 case NL80211_IFTYPE_STATION:
93d08f0b 4053 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4054 /* ignore uAPSD data */
4055 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4056
77ee7c89
JB		 4057 /* these are disallowed */
4058 if (params.sta_flags_mask &
4059 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4060 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4061 return -EINVAL;
bdd90d5e
JB		 4062 /* Only TDLS peers can be added */
4063 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4064 return -EINVAL;
4065 /* Can only add if TDLS ... */
4066 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4067 return -EOPNOTSUPP;
4068 /* ... with external setup is supported */
4069 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4070 return -EOPNOTSUPP;
77ee7c89
JB		 4071 /*
4072 * Older wpa_supplicant versions always mark the TDLS peer
4073 * as authorized, but it shouldn't yet be.
4074 */
4075 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4076 break;
4077 default:
4078 return -EOPNOTSUPP;
c75786c9
EP		 4079 }
4080
bdd90d5e 4081 /* be aware of params.vlan when changing code here */
5727ef1b 4082
e35e4d28 4083 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4084
5727ef1b
JB		 4085 if (params.vlan)
4086 dev_put(params.vlan);
5727ef1b
JB		 4087 return err;
4088}
4089
4090static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4091{
4c476991
JB		 4092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4093 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4094 u8 *mac_addr = NULL;
4095
4096 if (info->attrs[NL80211_ATTR_MAC])
4097 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4098
e80cf853 4099 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4100 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4101 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4103 return -EINVAL;
5727ef1b 4104
4c476991
JB		 4105 if (!rdev->ops->del_station)
4106 return -EOPNOTSUPP;
3b85875a 4107
e35e4d28 4108 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4109}
4110
15e47304 4111static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4112 int flags, struct net_device *dev,
4113 u8 *dst, u8 *next_hop,
4114 struct mpath_info *pinfo)
4115{
4116 void *hdr;
4117 struct nlattr *pinfoattr;
4118
15e47304 4119 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4120 if (!hdr)
4121 return -1;
4122
9360ffd1
DM		 4123 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4124 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4125 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4126 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4127 goto nla_put_failure;
f5ea9120 4128
2ec600d6
LCC		 4129 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4130 if (!pinfoattr)
4131 goto nla_put_failure;
9360ffd1
DM		 4132 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4133 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4134 pinfo->frame_qlen))
4135 goto nla_put_failure;
4136 if (((pinfo->filled & MPATH_INFO_SN) &&
4137 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4138 ((pinfo->filled & MPATH_INFO_METRIC) &&
4139 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4140 pinfo->metric)) ||
4141 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4142 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4143 pinfo->exptime)) ||
4144 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4145 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4146 pinfo->flags)) ||
4147 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4148 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4149 pinfo->discovery_timeout)) ||
4150 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4151 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4152 pinfo->discovery_retries)))
4153 goto nla_put_failure;
2ec600d6
LCC		 4154
4155 nla_nest_end(msg, pinfoattr);
4156
4157 return genlmsg_end(msg, hdr);
4158
4159 nla_put_failure:
bc3ed28c
TG		 4160 genlmsg_cancel(msg, hdr);
4161 return -EMSGSIZE;
2ec600d6
LCC		 4162}
4163
4164static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4165 struct netlink_callback *cb)
2ec600d6 4166{
2ec600d6
LCC		 4167 struct mpath_info pinfo;
4168 struct cfg80211_registered_device *dev;
97990a06 4169 struct wireless_dev *wdev;
2ec600d6
LCC		 4170 u8 dst[ETH_ALEN];
4171 u8 next_hop[ETH_ALEN];
97990a06 4172 int path_idx = cb->args[2];
2ec600d6 4173 int err;
2ec600d6 4174
97990a06 4175 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4176 if (err)
4177 return err;
bba95fef
JB		 4178
4179 if (!dev->ops->dump_mpath) {
eec60b03 4180 err = -EOPNOTSUPP;
bba95fef
JB		 4181 goto out_err;
4182 }
4183
97990a06 4184 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4185 err = -EOPNOTSUPP;
0448b5fc 4186 goto out_err;
eec60b03
JM		 4187 }
4188
bba95fef 4189 while (1) {
97990a06
JB		 4190 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4191 next_hop, &pinfo);
bba95fef 4192 if (err == -ENOENT)
2ec600d6 4193 break;
bba95fef 4194 if (err)
3b85875a 4195 goto out_err;
2ec600d6 4196
15e47304 4197 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4198 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4199 wdev->netdev, dst, next_hop,
bba95fef
JB		 4200 &pinfo) < 0)
4201 goto out;
2ec600d6 4202
bba95fef 4203 path_idx++;
2ec600d6 4204 }
2ec600d6 4205
2ec600d6 4206
bba95fef 4207 out:
97990a06 4208 cb->args[2] = path_idx;
bba95fef 4209 err = skb->len;
bba95fef 4210 out_err:
97990a06 4211 nl80211_finish_wdev_dump(dev);
bba95fef 4212 return err;
2ec600d6
LCC		 4213}
4214
4215static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4216{
4c476991 4217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4218 int err;
4c476991 4219 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4220 struct mpath_info pinfo;
4221 struct sk_buff *msg;
4222 u8 *dst = NULL;
4223 u8 next_hop[ETH_ALEN];
4224
4225 memset(&pinfo, 0, sizeof(pinfo));
4226
4227 if (!info->attrs[NL80211_ATTR_MAC])
4228 return -EINVAL;
4229
4230 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4231
4c476991
JB		 4232 if (!rdev->ops->get_mpath)
4233 return -EOPNOTSUPP;
2ec600d6 4234
4c476991
JB		 4235 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4236 return -EOPNOTSUPP;
eec60b03 4237
e35e4d28 4238 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4239 if (err)
4c476991 4240 return err;
2ec600d6 4241
fd2120ca 4242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4243 if (!msg)
4c476991 4244 return -ENOMEM;
2ec600d6 4245
15e47304 4246 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4247 dev, dst, next_hop, &pinfo) < 0) {
4248 nlmsg_free(msg);
4249 return -ENOBUFS;
4250 }
3b85875a 4251
4c476991 4252 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4253}
4254
4255static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4256{
4c476991
JB		 4257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4258 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4259 u8 *dst = NULL;
4260 u8 *next_hop = NULL;
4261
4262 if (!info->attrs[NL80211_ATTR_MAC])
4263 return -EINVAL;
4264
4265 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4266 return -EINVAL;
4267
4268 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4269 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4270
4c476991
JB		 4271 if (!rdev->ops->change_mpath)
4272 return -EOPNOTSUPP;
35a8efe1 4273
4c476991
JB		 4274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4275 return -EOPNOTSUPP;
2ec600d6 4276
e35e4d28 4277 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4278}
4c476991 4279
2ec600d6
LCC		 4280static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4281{
4c476991
JB		 4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4283 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4284 u8 *dst = NULL;
4285 u8 *next_hop = NULL;
4286
4287 if (!info->attrs[NL80211_ATTR_MAC])
4288 return -EINVAL;
4289
4290 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4291 return -EINVAL;
4292
4293 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4294 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4295
4c476991
JB		 4296 if (!rdev->ops->add_mpath)
4297 return -EOPNOTSUPP;
35a8efe1 4298
4c476991
JB		 4299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4300 return -EOPNOTSUPP;
2ec600d6 4301
e35e4d28 4302 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4303}
4304
4305static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4306{
4c476991
JB		 4307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4308 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4309 u8 *dst = NULL;
4310
4311 if (info->attrs[NL80211_ATTR_MAC])
4312 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4313
4c476991
JB		 4314 if (!rdev->ops->del_mpath)
4315 return -EOPNOTSUPP;
3b85875a 4316
e35e4d28 4317 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4318}
4319
9f1ba906
JM		 4320static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4321{
4c476991
JB		 4322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4323 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4324 struct bss_parameters params;
4325
4326 memset(&params, 0, sizeof(params));
4327 /* default to not changing parameters */
4328 params.use_cts_prot = -1;
4329 params.use_short_preamble = -1;
4330 params.use_short_slot_time = -1;
fd8aaaf3 4331 params.ap_isolate = -1;
50b12f59 4332 params.ht_opmode = -1;
53cabad7
JB		 4333 params.p2p_ctwindow = -1;
4334 params.p2p_opp_ps = -1;
9f1ba906
JM		 4335
4336 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4337 params.use_cts_prot =
4338 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4339 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4340 params.use_short_preamble =
4341 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4342 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4343 params.use_short_slot_time =
4344 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4345 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4346 params.basic_rates =
4347 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4348 params.basic_rates_len =
4349 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4350 }
fd8aaaf3
FF		 4351 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4352 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4353 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4354 params.ht_opmode =
4355 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4356
53cabad7
JB		 4357 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4358 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4359 return -EINVAL;
4360 params.p2p_ctwindow =
4361 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4362 if (params.p2p_ctwindow < 0)
4363 return -EINVAL;
4364 if (params.p2p_ctwindow != 0 &&
4365 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4366 return -EINVAL;
4367 }
4368
4369 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4370 u8 tmp;
4371
4372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4373 return -EINVAL;
4374 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4375 if (tmp > 1)
4376 return -EINVAL;
4377 params.p2p_opp_ps = tmp;
4378 if (params.p2p_opp_ps &&
4379 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4380 return -EINVAL;
4381 }
4382
4c476991
JB		 4383 if (!rdev->ops->change_bss)
4384 return -EOPNOTSUPP;
9f1ba906 4385
074ac8df 4386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4388 return -EOPNOTSUPP;
3b85875a 4389
e35e4d28 4390 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4391}
4392
b54452b0 4393static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4394 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4395 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4396 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4397 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4398 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4399 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4400};
4401
4402static int parse_reg_rule(struct nlattr *tb[],
4403 struct ieee80211_reg_rule *reg_rule)
4404{
4405 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4406 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4407
4408 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4409 return -EINVAL;
4410 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4411 return -EINVAL;
4412 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4413 return -EINVAL;
4414 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4415 return -EINVAL;
4416 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4417 return -EINVAL;
4418
4419 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4420
4421 freq_range->start_freq_khz =
4422 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4423 freq_range->end_freq_khz =
4424 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4425 freq_range->max_bandwidth_khz =
4426 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4427
4428 power_rule->max_eirp =
4429 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4430
4431 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4432 power_rule->max_antenna_gain =
4433 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4434
4435 return 0;
4436}
4437
4438static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4439{
4440 int r;
4441 char *data = NULL;
57b5ce07 4442 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4443
80778f18
LR		 4444 /*
4445 * You should only get this when cfg80211 hasn't yet initialized
4446 * completely when built-in to the kernel right between the time
4447 * window between nl80211_init() and regulatory_init(), if that is
4448 * even possible.
4449 */
458f4f9e 4450 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4451 return -EINPROGRESS;
80778f18 4452
fe33eb39
LR		 4453 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4454 return -EINVAL;
b2e1b302
LR		 4455
4456 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4457
57b5ce07
LR		 4458 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4459 user_reg_hint_type =
4460 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4461 else
4462 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4463
4464 switch (user_reg_hint_type) {
4465 case NL80211_USER_REG_HINT_USER:
4466 case NL80211_USER_REG_HINT_CELL_BASE:
4467 break;
4468 default:
4469 return -EINVAL;
4470 }
4471
4472 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4473
b2e1b302
LR		 4474 return r;
4475}
4476
24bdd9f4 4477static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4478 struct genl_info *info)
93da9cc1 4479{
4c476991 4480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4481 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4482 struct wireless_dev *wdev = dev->ieee80211_ptr;
4483 struct mesh_config cur_params;
4484 int err = 0;
93da9cc1 4485 void *hdr;
4486 struct nlattr *pinfoattr;
4487 struct sk_buff *msg;
4488
29cbe68c
JB		 4489 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4490 return -EOPNOTSUPP;
4491
24bdd9f4 4492 if (!rdev->ops->get_mesh_config)
4c476991 4493 return -EOPNOTSUPP;
f3f92586 4494
29cbe68c
JB		 4495 wdev_lock(wdev);
4496 /* If not connected, get default parameters */
4497 if (!wdev->mesh_id_len)
4498 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4499 else
e35e4d28 4500 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4501 wdev_unlock(wdev);
4502
93da9cc1 4503 if (err)
4c476991 4504 return err;
93da9cc1 4505
4506 /* Draw up a netlink message to send back */
fd2120ca 4507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4508 if (!msg)
4509 return -ENOMEM;
15e47304 4510 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4511 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4512 if (!hdr)
efe1cf0c 4513 goto out;
24bdd9f4 4514 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4515 if (!pinfoattr)
4516 goto nla_put_failure;
9360ffd1
DM		 4517 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4518 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4519 cur_params.dot11MeshRetryTimeout) ||
4520 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4521 cur_params.dot11MeshConfirmTimeout) ||
4522 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4523 cur_params.dot11MeshHoldingTimeout) ||
4524 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4525 cur_params.dot11MeshMaxPeerLinks) ||
4526 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4527 cur_params.dot11MeshMaxRetries) ||
4528 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4529 cur_params.dot11MeshTTL) ||
4530 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4531 cur_params.element_ttl) ||
4532 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4533 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4534 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4535 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4536 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4537 cur_params.dot11MeshHWMPmaxPREQretries) ||
4538 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4539 cur_params.path_refresh_time) ||
4540 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4541 cur_params.min_discovery_timeout) ||
4542 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4543 cur_params.dot11MeshHWMPactivePathTimeout) ||
4544 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4545 cur_params.dot11MeshHWMPpreqMinInterval) ||
4546 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4547 cur_params.dot11MeshHWMPperrMinInterval) ||
4548 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4549 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4550 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4551 cur_params.dot11MeshHWMPRootMode) ||
4552 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4553 cur_params.dot11MeshHWMPRannInterval) ||
4554 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4555 cur_params.dot11MeshGateAnnouncementProtocol) ||
4556 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4557 cur_params.dot11MeshForwarding) ||
4558 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4559 cur_params.rssi_threshold) ||
4560 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4561 cur_params.ht_opmode) ||
4562 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4563 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4564 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4565 cur_params.dot11MeshHWMProotInterval) ||
4566 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4567 cur_params.dot11MeshHWMPconfirmationInterval) ||
4568 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4569 cur_params.power_mode) ||
4570 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4571 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4572 goto nla_put_failure;
93da9cc1 4573 nla_nest_end(msg, pinfoattr);
4574 genlmsg_end(msg, hdr);
4c476991 4575 return genlmsg_reply(msg, info);
93da9cc1 4576
3b85875a 4577 nla_put_failure:
93da9cc1 4578 genlmsg_cancel(msg, hdr);
efe1cf0c 4579 out:
d080e275 4580 nlmsg_free(msg);
4c476991 4581 return -ENOBUFS;
93da9cc1 4582}
4583
b54452b0 4584static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4585 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4586 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4587 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4588 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4589 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4590 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4591 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4592 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4593 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4594 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4595 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4596 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4597 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4598 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4599 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4600 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4601 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4602 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4603 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4604 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4605 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4606 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4607 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4608 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4609 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4610 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4611 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4612};
4613
c80d545d
JC		 4614static const struct nla_policy
4615 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4616 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4617 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4618 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4619 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4620 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4621 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4622 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4623 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4624 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4625};
4626
24bdd9f4 4627static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4628 struct mesh_config *cfg,
4629 u32 *mask_out)
93da9cc1 4630{
93da9cc1 4631 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4632 u32 mask = 0;
93da9cc1 4633
ea54fba2
MP		 4634#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4635do { \
4636 if (tb[attr]) { \
4637 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4638 return -EINVAL; \
4639 cfg->param = fn(tb[attr]); \
4640 mask |= (1 << (attr - 1)); \
4641 } \
4642} while (0)
bd90fdcc
JB		 4643
4644
24bdd9f4 4645 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4646 return -EINVAL;
4647 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4648 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4649 nl80211_meshconf_params_policy))
93da9cc1 4650 return -EINVAL;
4651
93da9cc1 4652 /* This makes sure that there aren't more than 32 mesh config
4653 * parameters (otherwise our bitfield scheme would not work.) */
4654 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4655
4656 /* Fill in the params struct */
ea54fba2 4657 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4658 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4659 nla_get_u16);
ea54fba2 4660 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4661 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4662 nla_get_u16);
ea54fba2 4663 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4664 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4665 nla_get_u16);
ea54fba2 4666 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4667 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4668 nla_get_u16);
ea54fba2 4669 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4670 mask, NL80211_MESHCONF_MAX_RETRIES,
4671 nla_get_u8);
ea54fba2 4672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4673 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4674 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4675 mask, NL80211_MESHCONF_ELEMENT_TTL,
4676 nla_get_u8);
ea54fba2 4677 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4678 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4679 nla_get_u8);
ea54fba2
MP		 4680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4681 1, 255, mask,
a4f606ea
CYY		 4682 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4683 nla_get_u32);
ea54fba2 4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4685 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4686 nla_get_u8);
ea54fba2 4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4688 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4689 nla_get_u32);
ea54fba2 4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4691 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4692 nla_get_u16);
ea54fba2
MP		 4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4694 1, 65535, mask,
a4f606ea
CYY		 4695 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4696 nla_get_u32);
93da9cc1 4697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4698 1, 65535, mask,
4699 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4700 nla_get_u16);
dca7e943 4701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4702 1, 65535, mask,
4703 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4704 nla_get_u16);
93da9cc1 4705 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4706 dot11MeshHWMPnetDiameterTraversalTime,
4707 1, 65535, mask,
a4f606ea
CYY		 4708 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4709 nla_get_u16);
ea54fba2
MP		 4710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4711 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4712 nla_get_u8);
4713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4714 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4715 nla_get_u16);
63c5723b 4716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4717 dot11MeshGateAnnouncementProtocol, 0, 1,
4718 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4719 nla_get_u8);
ea54fba2 4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4721 mask, NL80211_MESHCONF_FORWARDING,
4722 nla_get_u8);
ea54fba2 4723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4724 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4725 nla_get_u32);
ea54fba2 4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4727 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4728 nla_get_u16);
4729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4730 1, 65535, mask,
ac1073a6
CYY		 4731 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4732 nla_get_u32);
ea54fba2 4733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4734 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4735 nla_get_u16);
4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4737 dot11MeshHWMPconfirmationInterval,
4738 1, 65535, mask,
728b19e5 4739 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4740 nla_get_u16);
3b1c5a53
MP		 4741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4742 NL80211_MESH_POWER_ACTIVE,
4743 NL80211_MESH_POWER_MAX,
4744 mask, NL80211_MESHCONF_POWER_MODE,
4745 nla_get_u32);
4746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4747 0, 65535, mask,
4748 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4749 if (mask_out)
4750 *mask_out = mask;
c80d545d 4751
bd90fdcc
JB		 4752 return 0;
4753
4754#undef FILL_IN_MESH_PARAM_IF_SET
4755}
4756
c80d545d
JC		 4757static int nl80211_parse_mesh_setup(struct genl_info *info,
4758 struct mesh_setup *setup)
4759{
bb2798d4 4760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4761 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4762
4763 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4764 return -EINVAL;
4765 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4766 info->attrs[NL80211_ATTR_MESH_SETUP],
4767 nl80211_mesh_setup_params_policy))
4768 return -EINVAL;
4769
d299a1f2
JC		 4770 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4771 setup->sync_method =
4772 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4773 IEEE80211_SYNC_METHOD_VENDOR :
4774 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4775
c80d545d
JC		 4776 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4777 setup->path_sel_proto =
4778 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4779 IEEE80211_PATH_PROTOCOL_VENDOR :
4780 IEEE80211_PATH_PROTOCOL_HWMP;
4781
4782 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4783 setup->path_metric =
4784 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4785 IEEE80211_PATH_METRIC_VENDOR :
4786 IEEE80211_PATH_METRIC_AIRTIME;
4787
581a8b0f
JC		 4788
4789 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4790 struct nlattr *ieattr =
581a8b0f 4791 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4792 if (!is_valid_ie_attr(ieattr))
4793 return -EINVAL;
581a8b0f
JC		 4794 setup->ie = nla_data(ieattr);
4795 setup->ie_len = nla_len(ieattr);
c80d545d 4796 }
bb2798d4
TP		 4797 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4798 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4799 return -EINVAL;
4800 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4801 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4802 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4803 if (setup->is_secure)
4804 setup->user_mpm = true;
c80d545d 4805
6e16d90b
CT		 4806 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4807 if (!setup->user_mpm)
4808 return -EINVAL;
4809 setup->auth_id =
4810 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4811 }
4812
c80d545d
JC		 4813 return 0;
4814}
4815
24bdd9f4 4816static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4817 struct genl_info *info)
bd90fdcc
JB		 4818{
4819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4820 struct net_device *dev = info->user_ptr[1];
29cbe68c 4821 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4822 struct mesh_config cfg;
4823 u32 mask;
4824 int err;
4825
29cbe68c
JB		 4826 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4827 return -EOPNOTSUPP;
4828
24bdd9f4 4829 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4830 return -EOPNOTSUPP;
4831
24bdd9f4 4832 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4833 if (err)
4834 return err;
4835
29cbe68c
JB		 4836 wdev_lock(wdev);
4837 if (!wdev->mesh_id_len)
4838 err = -ENOLINK;
4839
4840 if (!err)
e35e4d28 4841 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4842
4843 wdev_unlock(wdev);
4844
4845 return err;
93da9cc1 4846}
4847
f130347c
LR		 4848static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4849{
458f4f9e 4850 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4851 struct sk_buff *msg;
4852 void *hdr = NULL;
4853 struct nlattr *nl_reg_rules;
4854 unsigned int i;
f130347c
LR		 4855
4856 if (!cfg80211_regdomain)
5fe231e8 4857 return -EINVAL;
f130347c 4858
fd2120ca 4859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 4860 if (!msg)
4861 return -ENOBUFS;
f130347c 4862
15e47304 4863 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4864 NL80211_CMD_GET_REG);
4865 if (!hdr)
efe1cf0c 4866 goto put_failure;
f130347c 4867
57b5ce07
LR		 4868 if (reg_last_request_cell_base() &&
4869 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4870 NL80211_USER_REG_HINT_CELL_BASE))
4871 goto nla_put_failure;
4872
458f4f9e
JB		 4873 rcu_read_lock();
4874 regdom = rcu_dereference(cfg80211_regdomain);
4875
4876 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4877 (regdom->dfs_region &&
4878 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4879 goto nla_put_failure_rcu;
4880
f130347c
LR		 4881 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4882 if (!nl_reg_rules)
458f4f9e 4883 goto nla_put_failure_rcu;
f130347c 4884
458f4f9e 4885 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4886 struct nlattr *nl_reg_rule;
4887 const struct ieee80211_reg_rule *reg_rule;
4888 const struct ieee80211_freq_range *freq_range;
4889 const struct ieee80211_power_rule *power_rule;
4890
458f4f9e 4891 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4892 freq_range = &reg_rule->freq_range;
4893 power_rule = &reg_rule->power_rule;
4894
4895 nl_reg_rule = nla_nest_start(msg, i);
4896 if (!nl_reg_rule)
458f4f9e 4897 goto nla_put_failure_rcu;
f130347c 4898
9360ffd1
DM		 4899 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4900 reg_rule->flags) ||
4901 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4902 freq_range->start_freq_khz) ||
4903 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4904 freq_range->end_freq_khz) ||
4905 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4906 freq_range->max_bandwidth_khz) ||
4907 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4908 power_rule->max_antenna_gain) ||
4909 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4910 power_rule->max_eirp))
458f4f9e 4911 goto nla_put_failure_rcu;
f130347c
LR		 4912
4913 nla_nest_end(msg, nl_reg_rule);
4914 }
458f4f9e 4915 rcu_read_unlock();
f130347c
LR		 4916
4917 nla_nest_end(msg, nl_reg_rules);
4918
4919 genlmsg_end(msg, hdr);
5fe231e8 4920 return genlmsg_reply(msg, info);
f130347c 4921
458f4f9e
JB		 4922nla_put_failure_rcu:
4923 rcu_read_unlock();
f130347c
LR		 4924nla_put_failure:
4925 genlmsg_cancel(msg, hdr);
efe1cf0c 4926put_failure:
d080e275 4927 nlmsg_free(msg);
5fe231e8 4928 return -EMSGSIZE;
f130347c
LR		 4929}
4930
b2e1b302
LR		 4931static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4932{
4933 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4934 struct nlattr *nl_reg_rule;
4935 char *alpha2 = NULL;
4936 int rem_reg_rules = 0, r = 0;
4937 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4938 u8 dfs_region = 0;
b2e1b302
LR		 4939 struct ieee80211_regdomain *rd = NULL;
4940
4941 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4942 return -EINVAL;
4943
4944 if (!info->attrs[NL80211_ATTR_REG_RULES])
4945 return -EINVAL;
4946
4947 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4948
8b60b078
LR		 4949 if (info->attrs[NL80211_ATTR_DFS_REGION])
4950 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4951
b2e1b302 4952 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4953 rem_reg_rules) {
b2e1b302
LR		 4954 num_rules++;
4955 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4956 return -EINVAL;
b2e1b302
LR		 4957 }
4958
b2e1b302 4959 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4960 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4961
4962 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4963 if (!rd)
4964 return -ENOMEM;
b2e1b302
LR		 4965
4966 rd->n_reg_rules = num_rules;
4967 rd->alpha2[0] = alpha2[0];
4968 rd->alpha2[1] = alpha2[1];
4969
8b60b078
LR		 4970 /*
4971 * Disable DFS master mode if the DFS region was
4972 * not supported or known on this kernel.
4973 */
4974 if (reg_supported_dfs_region(dfs_region))
4975 rd->dfs_region = dfs_region;
4976
b2e1b302 4977 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4978 rem_reg_rules) {
b2e1b302 4979 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4980 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4981 reg_rule_policy);
b2e1b302
LR		 4982 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4983 if (r)
4984 goto bad_reg;
4985
4986 rule_idx++;
4987
d0e18f83
LR		 4988 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4989 r = -EINVAL;
b2e1b302 4990 goto bad_reg;
d0e18f83 4991 }
b2e1b302
LR		 4992 }
4993
b2e1b302 4994 r = set_regdom(rd);
6913b49a 4995 /* set_regdom took ownership */
1a919318 4996 rd = NULL;
b2e1b302 4997
d2372b31 4998 bad_reg:
b2e1b302 4999 kfree(rd);
d0e18f83 5000 return r;
b2e1b302
LR		 5001}
5002
83f5e2cf
JB		 5003static int validate_scan_freqs(struct nlattr *freqs)
5004{
5005 struct nlattr *attr1, *attr2;
5006 int n_channels = 0, tmp1, tmp2;
5007
5008 nla_for_each_nested(attr1, freqs, tmp1) {
5009 n_channels++;
5010 /*
5011 * Some hardware has a limited channel list for
5012 * scanning, and it is pretty much nonsensical
5013 * to scan for a channel twice, so disallow that
5014 * and don't require drivers to check that the
5015 * channel list they get isn't longer than what
5016 * they can scan, as long as they can scan all
5017 * the channels they registered at once.
5018 */
5019 nla_for_each_nested(attr2, freqs, tmp2)
5020 if (attr1 != attr2 &&
5021 nla_get_u32(attr1) == nla_get_u32(attr2))
5022 return 0;
5023 }
5024
5025 return n_channels;
5026}
5027
2a519311
JB		 5028static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5029{
4c476991 5030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5031 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5032 struct cfg80211_scan_request *request;
2a519311
JB		 5033 struct nlattr *attr;
5034 struct wiphy *wiphy;
83f5e2cf 5035 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5036 size_t ie_len;
2a519311 5037
f4a11bb0
JB		 5038 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5039 return -EINVAL;
5040
79c97e97 5041 wiphy = &rdev->wiphy;
2a519311 5042
4c476991
JB		 5043 if (!rdev->ops->scan)
5044 return -EOPNOTSUPP;
2a519311 5045
f9f47529
JB		 5046 if (rdev->scan_req) {
5047 err = -EBUSY;
5048 goto unlock;
5049 }
2a519311
JB		 5050
5051 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5052 n_channels = validate_scan_freqs(
5053 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5054 if (!n_channels) {
5055 err = -EINVAL;
5056 goto unlock;
5057 }
2a519311 5058 } else {
34850ab2 5059 enum ieee80211_band band;
83f5e2cf
JB		 5060 n_channels = 0;
5061
2a519311
JB		 5062 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5063 if (wiphy->bands[band])
5064 n_channels += wiphy->bands[band]->n_channels;
5065 }
5066
5067 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5068 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5069 n_ssids++;
5070
f9f47529
JB		 5071 if (n_ssids > wiphy->max_scan_ssids) {
5072 err = -EINVAL;
5073 goto unlock;
5074 }
2a519311 5075
70692ad2
JM		 5076 if (info->attrs[NL80211_ATTR_IE])
5077 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5078 else
5079 ie_len = 0;
5080
f9f47529
JB		 5081 if (ie_len > wiphy->max_scan_ie_len) {
5082 err = -EINVAL;
5083 goto unlock;
5084 }
18a83659 5085
2a519311 5086 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5087 + sizeof(*request->ssids) * n_ssids
5088 + sizeof(*request->channels) * n_channels
70692ad2 5089 + ie_len, GFP_KERNEL);
f9f47529
JB		 5090 if (!request) {
5091 err = -ENOMEM;
5092 goto unlock;
5093 }
2a519311 5094
2a519311 5095 if (n_ssids)
5ba63533 5096 request->ssids = (void *)&request->channels[n_channels];
2a519311 5097 request->n_ssids = n_ssids;
70692ad2
JM		 5098 if (ie_len) {
5099 if (request->ssids)
5100 request->ie = (void *)(request->ssids + n_ssids);
5101 else
5102 request->ie = (void *)(request->channels + n_channels);
5103 }
2a519311 5104
584991dc 5105 i = 0;
2a519311
JB		 5106 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5107 /* user specified, bail out if channel not found */
2a519311 5108 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5109 struct ieee80211_channel *chan;
5110
5111 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5112
5113 if (!chan) {
2a519311
JB		 5114 err = -EINVAL;
5115 goto out_free;
5116 }
584991dc
JB		 5117
5118 /* ignore disabled channels */
5119 if (chan->flags & IEEE80211_CHAN_DISABLED)
5120 continue;
5121
5122 request->channels[i] = chan;
2a519311
JB		 5123 i++;
5124 }
5125 } else {
34850ab2
JB		 5126 enum ieee80211_band band;
5127
2a519311 5128 /* all channels */
2a519311
JB		 5129 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5130 int j;
5131 if (!wiphy->bands[band])
5132 continue;
5133 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5134 struct ieee80211_channel *chan;
5135
5136 chan = &wiphy->bands[band]->channels[j];
5137
5138 if (chan->flags & IEEE80211_CHAN_DISABLED)
5139 continue;
5140
5141 request->channels[i] = chan;
2a519311
JB		 5142 i++;
5143 }
5144 }
5145 }
5146
584991dc
JB		 5147 if (!i) {
5148 err = -EINVAL;
5149 goto out_free;
5150 }
5151
5152 request->n_channels = i;
5153
2a519311
JB		 5154 i = 0;
5155 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5156 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5157 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5158 err = -EINVAL;
5159 goto out_free;
5160 }
57a27e1d 5161 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5162 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5163 i++;
5164 }
5165 }
5166
70692ad2
JM		 5167 if (info->attrs[NL80211_ATTR_IE]) {
5168 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5169 memcpy((void *)request->ie,
5170 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5171 request->ie_len);
5172 }
5173
34850ab2 5174 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5175 if (wiphy->bands[i])
5176 request->rates[i] =
5177 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5178
5179 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5180 nla_for_each_nested(attr,
5181 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5182 tmp) {
5183 enum ieee80211_band band = nla_type(attr);
5184
84404623 5185 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5186 err = -EINVAL;
5187 goto out_free;
5188 }
5189 err = ieee80211_get_ratemask(wiphy->bands[band],
5190 nla_data(attr),
5191 nla_len(attr),
5192 &request->rates[band]);
5193 if (err)
5194 goto out_free;
5195 }
5196 }
5197
46856bbf 5198 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5199 request->flags = nla_get_u32(
5200 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5201 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5202 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5203 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5204 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5205 err = -EOPNOTSUPP;
5206 goto out_free;
5207 }
5208 }
ed473771 5209
e9f935e3
RM		 5210 request->no_cck =
5211 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5212
fd014284 5213 request->wdev = wdev;
79c97e97 5214 request->wiphy = &rdev->wiphy;
15d6030b 5215 request->scan_start = jiffies;
2a519311 5216
79c97e97 5217 rdev->scan_req = request;
e35e4d28 5218 err = rdev_scan(rdev, request);
2a519311 5219
463d0183 5220 if (!err) {
fd014284
JB		 5221 nl80211_send_scan_start(rdev, wdev);
5222 if (wdev->netdev)
5223 dev_hold(wdev->netdev);
4c476991 5224 } else {
2a519311 5225 out_free:
79c97e97 5226 rdev->scan_req = NULL;
2a519311
JB		 5227 kfree(request);
5228 }
3b85875a 5229
f9f47529 5230 unlock:
2a519311
JB		 5231 return err;
5232}
5233
807f8a8c
LC		 5234static int nl80211_start_sched_scan(struct sk_buff *skb,
5235 struct genl_info *info)
5236{
5237 struct cfg80211_sched_scan_request *request;
5238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5239 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5240 struct nlattr *attr;
5241 struct wiphy *wiphy;
a1f1c21c 5242 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5243 u32 interval;
807f8a8c
LC		 5244 enum ieee80211_band band;
5245 size_t ie_len;
a1f1c21c 5246 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5247
5248 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5249 !rdev->ops->sched_scan_start)
5250 return -EOPNOTSUPP;
5251
5252 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5253 return -EINVAL;
5254
bbe6ad6d
LC		 5255 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5256 return -EINVAL;
5257
5258 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5259 if (interval == 0)
5260 return -EINVAL;
5261
807f8a8c
LC		 5262 wiphy = &rdev->wiphy;
5263
5264 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5265 n_channels = validate_scan_freqs(
5266 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5267 if (!n_channels)
5268 return -EINVAL;
5269 } else {
5270 n_channels = 0;
5271
5272 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5273 if (wiphy->bands[band])
5274 n_channels += wiphy->bands[band]->n_channels;
5275 }
5276
5277 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5278 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5279 tmp)
5280 n_ssids++;
5281
93b6aa69 5282 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5283 return -EINVAL;
5284
a1f1c21c
LC		 5285 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5286 nla_for_each_nested(attr,
5287 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5288 tmp)
5289 n_match_sets++;
5290
5291 if (n_match_sets > wiphy->max_match_sets)
5292 return -EINVAL;
5293
807f8a8c
LC		 5294 if (info->attrs[NL80211_ATTR_IE])
5295 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5296 else
5297 ie_len = 0;
5298
5a865bad 5299 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5300 return -EINVAL;
5301
c10841ca
LC		 5302 if (rdev->sched_scan_req) {
5303 err = -EINPROGRESS;
5304 goto out;
5305 }
5306
807f8a8c 5307 request = kzalloc(sizeof(*request)
a2cd43c5 5308 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5309 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5310 + sizeof(*request->channels) * n_channels
807f8a8c 5311 + ie_len, GFP_KERNEL);
c10841ca
LC		 5312 if (!request) {
5313 err = -ENOMEM;
5314 goto out;
5315 }
807f8a8c
LC		 5316
5317 if (n_ssids)
5318 request->ssids = (void *)&request->channels[n_channels];
5319 request->n_ssids = n_ssids;
5320 if (ie_len) {
5321 if (request->ssids)
5322 request->ie = (void *)(request->ssids + n_ssids);
5323 else
5324 request->ie = (void *)(request->channels + n_channels);
5325 }
5326
a1f1c21c
LC		 5327 if (n_match_sets) {
5328 if (request->ie)
5329 request->match_sets = (void *)(request->ie + ie_len);
5330 else if (request->ssids)
5331 request->match_sets =
5332 (void *)(request->ssids + n_ssids);
5333 else
5334 request->match_sets =
5335 (void *)(request->channels + n_channels);
5336 }
5337 request->n_match_sets = n_match_sets;
5338
807f8a8c
LC		 5339 i = 0;
5340 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5341 /* user specified, bail out if channel not found */
5342 nla_for_each_nested(attr,
5343 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5344 tmp) {
5345 struct ieee80211_channel *chan;
5346
5347 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5348
5349 if (!chan) {
5350 err = -EINVAL;
5351 goto out_free;
5352 }
5353
5354 /* ignore disabled channels */
5355 if (chan->flags & IEEE80211_CHAN_DISABLED)
5356 continue;
5357
5358 request->channels[i] = chan;
5359 i++;
5360 }
5361 } else {
5362 /* all channels */
5363 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5364 int j;
5365 if (!wiphy->bands[band])
5366 continue;
5367 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5368 struct ieee80211_channel *chan;
5369
5370 chan = &wiphy->bands[band]->channels[j];
5371
5372 if (chan->flags & IEEE80211_CHAN_DISABLED)
5373 continue;
5374
5375 request->channels[i] = chan;
5376 i++;
5377 }
5378 }
5379 }
5380
5381 if (!i) {
5382 err = -EINVAL;
5383 goto out_free;
5384 }
5385
5386 request->n_channels = i;
5387
5388 i = 0;
5389 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5390 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5391 tmp) {
57a27e1d 5392 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5393 err = -EINVAL;
5394 goto out_free;
5395 }
57a27e1d 5396 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5397 memcpy(request->ssids[i].ssid, nla_data(attr),
5398 nla_len(attr));
807f8a8c
LC		 5399 i++;
5400 }
5401 }
5402
a1f1c21c
LC		 5403 i = 0;
5404 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5405 nla_for_each_nested(attr,
5406 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5407 tmp) {
88e920b4 5408 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5409
5410 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5411 nla_data(attr), nla_len(attr),
5412 nl80211_match_policy);
4a4ab0d7 5413 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5414 if (ssid) {
5415 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5416 err = -EINVAL;
5417 goto out_free;
5418 }
5419 memcpy(request->match_sets[i].ssid.ssid,
5420 nla_data(ssid), nla_len(ssid));
5421 request->match_sets[i].ssid.ssid_len =
5422 nla_len(ssid);
5423 }
88e920b4
TP		 5424 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5425 if (rssi)
5426 request->rssi_thold = nla_get_u32(rssi);
5427 else
5428 request->rssi_thold =
5429 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5430 i++;
5431 }
5432 }
5433
807f8a8c
LC		 5434 if (info->attrs[NL80211_ATTR_IE]) {
5435 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5436 memcpy((void *)request->ie,
5437 nla_data(info->attrs[NL80211_ATTR_IE]),
5438 request->ie_len);
5439 }
5440
46856bbf 5441 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5442 request->flags = nla_get_u32(
5443 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5444 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5445 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5446 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5447 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5448 err = -EOPNOTSUPP;
5449 goto out_free;
5450 }
5451 }
ed473771 5452
807f8a8c
LC		 5453 request->dev = dev;
5454 request->wiphy = &rdev->wiphy;
bbe6ad6d 5455 request->interval = interval;
15d6030b 5456 request->scan_start = jiffies;
807f8a8c 5457
e35e4d28 5458 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5459 if (!err) {
5460 rdev->sched_scan_req = request;
5461 nl80211_send_sched_scan(rdev, dev,
5462 NL80211_CMD_START_SCHED_SCAN);
5463 goto out;
5464 }
5465
5466out_free:
5467 kfree(request);
5468out:
5469 return err;
5470}
5471
5472static int nl80211_stop_sched_scan(struct sk_buff *skb,
5473 struct genl_info *info)
5474{
5475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5476
5477 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5478 !rdev->ops->sched_scan_stop)
5479 return -EOPNOTSUPP;
5480
5fe231e8 5481 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5482}
5483
04f39047
SW		 5484static int nl80211_start_radar_detection(struct sk_buff *skb,
5485 struct genl_info *info)
5486{
5487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5488 struct net_device *dev = info->user_ptr[1];
5489 struct wireless_dev *wdev = dev->ieee80211_ptr;
5490 struct cfg80211_chan_def chandef;
5491 int err;
5492
5493 err = nl80211_parse_chandef(rdev, info, &chandef);
5494 if (err)
5495 return err;
5496
5497 if (wdev->cac_started)
5498 return -EBUSY;
5499
5500 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5501 if (err < 0)
5502 return err;
5503
5504 if (err == 0)
5505 return -EINVAL;
5506
5507 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5508 return -EINVAL;
5509
5510 if (!rdev->ops->start_radar_detection)
5511 return -EOPNOTSUPP;
5512
04f39047
SW		 5513 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5514 chandef.chan, CHAN_MODE_SHARED,
5515 BIT(chandef.width));
5516 if (err)
5fe231e8 5517 return err;
04f39047
SW		 5518
5519 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5520 if (!err) {
5521 wdev->channel = chandef.chan;
5522 wdev->cac_started = true;
5523 wdev->cac_start_time = jiffies;
5524 }
04f39047
SW		 5525 return err;
5526}
5527
9720bb3a
JB		 5528static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5529 u32 seq, int flags,
2a519311 5530 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5531 struct wireless_dev *wdev,
5532 struct cfg80211_internal_bss *intbss)
2a519311 5533{
48ab905d 5534 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5535 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5536 void *hdr;
5537 struct nlattr *bss;
8cef2c9d 5538 bool tsf = false;
48ab905d
JB		 5539
5540 ASSERT_WDEV_LOCK(wdev);
2a519311 5541
15e47304 5542 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5543 NL80211_CMD_NEW_SCAN_RESULTS);
5544 if (!hdr)
5545 return -1;
5546
9720bb3a
JB		 5547 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5548
97990a06
JB		 5549 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5550 goto nla_put_failure;
5551 if (wdev->netdev &&
9360ffd1
DM		 5552 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5553 goto nla_put_failure;
97990a06
JB		 5554 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5555 goto nla_put_failure;
2a519311
JB		 5556
5557 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5558 if (!bss)
5559 goto nla_put_failure;
9360ffd1 5560 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5561 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5562 goto nla_put_failure;
9caf0364
JB		 5563
5564 rcu_read_lock();
5565 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5566 if (ies) {
5567 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5568 goto fail_unlock_rcu;
5569 tsf = true;
5570 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5571 ies->len, ies->data))
5572 goto fail_unlock_rcu;
9caf0364
JB		 5573 }
5574 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5575 if (ies) {
5576 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5577 goto fail_unlock_rcu;
5578 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5579 ies->len, ies->data))
5580 goto fail_unlock_rcu;
9caf0364
JB		 5581 }
5582 rcu_read_unlock();
5583
9360ffd1
DM		 5584 if (res->beacon_interval &&
5585 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5586 goto nla_put_failure;
5587 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5588 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5589 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5590 jiffies_to_msecs(jiffies - intbss->ts)))
5591 goto nla_put_failure;
2a519311 5592
77965c97 5593 switch (rdev->wiphy.signal_type) {
2a519311 5594 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5595 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5596 goto nla_put_failure;
2a519311
JB		 5597 break;
5598 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5599 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5600 goto nla_put_failure;
2a519311
JB		 5601 break;
5602 default:
5603 break;
5604 }
5605
48ab905d 5606 switch (wdev->iftype) {
074ac8df 5607 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5608 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5609 if (intbss == wdev->current_bss &&
5610 nla_put_u32(msg, NL80211_BSS_STATUS,
5611 NL80211_BSS_STATUS_ASSOCIATED))
5612 goto nla_put_failure;
48ab905d
JB		 5613 break;
5614 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5615 if (intbss == wdev->current_bss &&
5616 nla_put_u32(msg, NL80211_BSS_STATUS,
5617 NL80211_BSS_STATUS_IBSS_JOINED))
5618 goto nla_put_failure;
48ab905d
JB		 5619 break;
5620 default:
5621 break;
5622 }
5623
2a519311
JB		 5624 nla_nest_end(msg, bss);
5625
5626 return genlmsg_end(msg, hdr);
5627
8cef2c9d
JB		 5628 fail_unlock_rcu:
5629 rcu_read_unlock();
2a519311
JB		 5630 nla_put_failure:
5631 genlmsg_cancel(msg, hdr);
5632 return -EMSGSIZE;
5633}
5634
97990a06 5635static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5636{
48ab905d 5637 struct cfg80211_registered_device *rdev;
2a519311 5638 struct cfg80211_internal_bss *scan;
48ab905d 5639 struct wireless_dev *wdev;
97990a06 5640 int start = cb->args[2], idx = 0;
2a519311
JB		 5641 int err;
5642
97990a06 5643 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5644 if (err)
5645 return err;
2a519311 5646
48ab905d
JB		 5647 wdev_lock(wdev);
5648 spin_lock_bh(&rdev->bss_lock);
5649 cfg80211_bss_expire(rdev);
5650
9720bb3a
JB		 5651 cb->seq = rdev->bss_generation;
5652
48ab905d 5653 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5654 if (++idx <= start)
5655 continue;
9720bb3a 5656 if (nl80211_send_bss(skb, cb,
2a519311 5657 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5658 rdev, wdev, scan) < 0) {
2a519311 5659 idx--;
67748893 5660 break;
2a519311
JB		 5661 }
5662 }
5663
48ab905d
JB		 5664 spin_unlock_bh(&rdev->bss_lock);
5665 wdev_unlock(wdev);
2a519311 5666
97990a06
JB		 5667 cb->args[2] = idx;
5668 nl80211_finish_wdev_dump(rdev);
2a519311 5669
67748893 5670 return skb->len;
2a519311
JB		 5671}
5672
15e47304 5673static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5674 int flags, struct net_device *dev,
5675 struct survey_info *survey)
5676{
5677 void *hdr;
5678 struct nlattr *infoattr;
5679
15e47304 5680 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5681 NL80211_CMD_NEW_SURVEY_RESULTS);
5682 if (!hdr)
5683 return -ENOMEM;
5684
9360ffd1
DM		 5685 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5686 goto nla_put_failure;
61fa713c
HS		 5687
5688 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5689 if (!infoattr)
5690 goto nla_put_failure;
5691
9360ffd1
DM		 5692 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5693 survey->channel->center_freq))
5694 goto nla_put_failure;
5695
5696 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5697 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5698 goto nla_put_failure;
5699 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5700 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5701 goto nla_put_failure;
5702 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5703 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5704 survey->channel_time))
5705 goto nla_put_failure;
5706 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5707 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5708 survey->channel_time_busy))
5709 goto nla_put_failure;
5710 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5711 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5712 survey->channel_time_ext_busy))
5713 goto nla_put_failure;
5714 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5715 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5716 survey->channel_time_rx))
5717 goto nla_put_failure;
5718 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5719 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5720 survey->channel_time_tx))
5721 goto nla_put_failure;
61fa713c
HS		 5722
5723 nla_nest_end(msg, infoattr);
5724
5725 return genlmsg_end(msg, hdr);
5726
5727 nla_put_failure:
5728 genlmsg_cancel(msg, hdr);
5729 return -EMSGSIZE;
5730}
5731
5732static int nl80211_dump_survey(struct sk_buff *skb,
5733 struct netlink_callback *cb)
5734{
5735 struct survey_info survey;
5736 struct cfg80211_registered_device *dev;
97990a06
JB		 5737 struct wireless_dev *wdev;
5738 int survey_idx = cb->args[2];
61fa713c
HS		 5739 int res;
5740
97990a06 5741 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 5742 if (res)
5743 return res;
61fa713c 5744
97990a06
JB		 5745 if (!wdev->netdev) {
5746 res = -EINVAL;
5747 goto out_err;
5748 }
5749
61fa713c
HS		 5750 if (!dev->ops->dump_survey) {
5751 res = -EOPNOTSUPP;
5752 goto out_err;
5753 }
5754
5755 while (1) {
180cdc79
LR		 5756 struct ieee80211_channel *chan;
5757
97990a06 5758 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 5759 if (res == -ENOENT)
5760 break;
5761 if (res)
5762 goto out_err;
5763
180cdc79
LR		 5764 /* Survey without a channel doesn't make sense */
5765 if (!survey.channel) {
5766 res = -EINVAL;
5767 goto out;
5768 }
5769
5770 chan = ieee80211_get_channel(&dev->wiphy,
5771 survey.channel->center_freq);
5772 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5773 survey_idx++;
5774 continue;
5775 }
5776
61fa713c 5777 if (nl80211_send_survey(skb,
15e47304 5778 NETLINK_CB(cb->skb).portid,
61fa713c 5779 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 5780 wdev->netdev, &survey) < 0)
61fa713c
HS		 5781 goto out;
5782 survey_idx++;
5783 }
5784
5785 out:
97990a06 5786 cb->args[2] = survey_idx;
61fa713c
HS		 5787 res = skb->len;
5788 out_err:
97990a06 5789 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 5790 return res;
5791}
5792
b23aa676
SO		 5793static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5794{
5795 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5796 NL80211_WPA_VERSION_2));
5797}
5798
636a5d36
JM		 5799static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5800{
4c476991
JB		 5801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5802 struct net_device *dev = info->user_ptr[1];
19957bb3 5803 struct ieee80211_channel *chan;
e39e5b5e
JM		 5804 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5805 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5806 enum nl80211_auth_type auth_type;
fffd0934 5807 struct key_parse key;
d5cdfacb 5808 bool local_state_change;
636a5d36 5809
f4a11bb0
JB		 5810 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5811 return -EINVAL;
5812
5813 if (!info->attrs[NL80211_ATTR_MAC])
5814 return -EINVAL;
5815
1778092e
JM		 5816 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5817 return -EINVAL;
5818
19957bb3
JB		 5819 if (!info->attrs[NL80211_ATTR_SSID])
5820 return -EINVAL;
5821
5822 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5823 return -EINVAL;
5824
fffd0934
JB		 5825 err = nl80211_parse_key(info, &key);
5826 if (err)
5827 return err;
5828
5829 if (key.idx >= 0) {
e31b8213
JB		 5830 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5831 return -EINVAL;
fffd0934
JB		 5832 if (!key.p.key || !key.p.key_len)
5833 return -EINVAL;
5834 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5835 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5836 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5837 key.p.key_len != WLAN_KEY_LEN_WEP104))
5838 return -EINVAL;
5839 if (key.idx > 4)
5840 return -EINVAL;
5841 } else {
5842 key.p.key_len = 0;
5843 key.p.key = NULL;
5844 }
5845
afea0b7a
JB		 5846 if (key.idx >= 0) {
5847 int i;
5848 bool ok = false;
5849 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5850 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5851 ok = true;
5852 break;
5853 }
5854 }
4c476991
JB		 5855 if (!ok)
5856 return -EINVAL;
afea0b7a
JB		 5857 }
5858
4c476991
JB		 5859 if (!rdev->ops->auth)
5860 return -EOPNOTSUPP;
636a5d36 5861
074ac8df 5862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5863 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5864 return -EOPNOTSUPP;
eec60b03 5865
19957bb3 5866 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5867 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5868 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5869 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5870 return -EINVAL;
636a5d36 5871
19957bb3
JB		 5872 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5873 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5874
5875 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5876 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5877 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5878 }
5879
19957bb3 5880 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5881 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5882 return -EINVAL;
636a5d36 5883
e39e5b5e
JM		 5884 if (auth_type == NL80211_AUTHTYPE_SAE &&
5885 !info->attrs[NL80211_ATTR_SAE_DATA])
5886 return -EINVAL;
5887
5888 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5889 if (auth_type != NL80211_AUTHTYPE_SAE)
5890 return -EINVAL;
5891 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5892 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5893 /* need to include at least Auth Transaction and Status Code */
5894 if (sae_data_len < 4)
5895 return -EINVAL;
5896 }
5897
d5cdfacb
JM		 5898 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5899
95de817b
JB		 5900 /*
5901 * Since we no longer track auth state, ignore
5902 * requests to only change local state.
5903 */
5904 if (local_state_change)
5905 return 0;
5906
91bf9b26
JB		 5907 wdev_lock(dev->ieee80211_ptr);
5908 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5909 ssid, ssid_len, ie, ie_len,
5910 key.p.key, key.p.key_len, key.idx,
5911 sae_data, sae_data_len);
5912 wdev_unlock(dev->ieee80211_ptr);
5913 return err;
636a5d36
JM		 5914}
5915
c0692b8f
JB		 5916static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5917 struct genl_info *info,
3dc27d25
JB		 5918 struct cfg80211_crypto_settings *settings,
5919 int cipher_limit)
b23aa676 5920{
c0b2bbd8
JB		 5921 memset(settings, 0, sizeof(*settings));
5922
b23aa676
SO		 5923 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5924
c0692b8f
JB		 5925 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5926 u16 proto;
5927 proto = nla_get_u16(
5928 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5929 settings->control_port_ethertype = cpu_to_be16(proto);
5930 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5931 proto != ETH_P_PAE)
5932 return -EINVAL;
5933 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5934 settings->control_port_no_encrypt = true;
5935 } else
5936 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5937
b23aa676
SO		 5938 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5939 void *data;
5940 int len, i;
5941
5942 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5943 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5944 settings->n_ciphers_pairwise = len / sizeof(u32);
5945
5946 if (len % sizeof(u32))
5947 return -EINVAL;
5948
3dc27d25 5949 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5950 return -EINVAL;
5951
5952 memcpy(settings->ciphers_pairwise, data, len);
5953
5954 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5955 if (!cfg80211_supported_cipher_suite(
5956 &rdev->wiphy,
b23aa676
SO		 5957 settings->ciphers_pairwise[i]))
5958 return -EINVAL;
5959 }
5960
5961 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5962 settings->cipher_group =
5963 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5964 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5965 settings->cipher_group))
b23aa676
SO		 5966 return -EINVAL;
5967 }
5968
5969 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5970 settings->wpa_versions =
5971 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5972 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5973 return -EINVAL;
5974 }
5975
5976 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5977 void *data;
6d30240e 5978 int len;
b23aa676
SO		 5979
5980 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5981 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5982 settings->n_akm_suites = len / sizeof(u32);
5983
5984 if (len % sizeof(u32))
5985 return -EINVAL;
5986
1b9ca027
JM		 5987 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5988 return -EINVAL;
5989
b23aa676 5990 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5991 }
5992
5993 return 0;
5994}
5995
636a5d36
JM		 5996static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5997{
4c476991
JB		 5998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5999 struct net_device *dev = info->user_ptr[1];
f444de05 6000 struct ieee80211_channel *chan;
f62fab73
JB		 6001 struct cfg80211_assoc_request req = {};
6002 const u8 *bssid, *ssid;
6003 int err, ssid_len = 0;
636a5d36 6004
f4a11bb0
JB		 6005 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6006 return -EINVAL;
6007
6008 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6009 !info->attrs[NL80211_ATTR_SSID] ||
6010 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6011 return -EINVAL;
6012
4c476991
JB		 6013 if (!rdev->ops->assoc)
6014 return -EOPNOTSUPP;
636a5d36 6015
074ac8df 6016 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6017 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6018 return -EOPNOTSUPP;
eec60b03 6019
19957bb3 6020 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6021
19957bb3
JB		 6022 chan = ieee80211_get_channel(&rdev->wiphy,
6023 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6024 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6025 return -EINVAL;
636a5d36 6026
19957bb3
JB		 6027 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6028 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6029
6030 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6031 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6032 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6033 }
6034
dc6382ce 6035 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6036 enum nl80211_mfp mfp =
dc6382ce 6037 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6038 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6039 req.use_mfp = true;
4c476991
JB		 6040 else if (mfp != NL80211_MFP_NO)
6041 return -EINVAL;
dc6382ce
JM		 6042 }
6043
3e5d7649 6044 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6045 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6046
7e7c8926 6047 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6048 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6049
6050 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6051 memcpy(&req.ht_capa_mask,
6052 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6053 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6054
6055 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6056 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6057 return -EINVAL;
f62fab73
JB		 6058 memcpy(&req.ht_capa,
6059 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6060 sizeof(req.ht_capa));
7e7c8926
BG		 6061 }
6062
ee2aca34 6063 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6064 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6065
6066 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6067 memcpy(&req.vht_capa_mask,
6068 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6069 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6070
6071 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6072 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6073 return -EINVAL;
f62fab73
JB		 6074 memcpy(&req.vht_capa,
6075 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6076 sizeof(req.vht_capa));
ee2aca34
JB		 6077 }
6078
f62fab73 6079 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6080 if (!err) {
6081 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6082 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6083 ssid, ssid_len, &req);
91bf9b26
JB		 6084 wdev_unlock(dev->ieee80211_ptr);
6085 }
636a5d36 6086
636a5d36
JM		 6087 return err;
6088}
6089
6090static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6091{
4c476991
JB		 6092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6093 struct net_device *dev = info->user_ptr[1];
19957bb3 6094 const u8 *ie = NULL, *bssid;
91bf9b26 6095 int ie_len = 0, err;
19957bb3 6096 u16 reason_code;
d5cdfacb 6097 bool local_state_change;
636a5d36 6098
f4a11bb0
JB		 6099 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6100 return -EINVAL;
6101
6102 if (!info->attrs[NL80211_ATTR_MAC])
6103 return -EINVAL;
6104
6105 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6106 return -EINVAL;
6107
4c476991
JB		 6108 if (!rdev->ops->deauth)
6109 return -EOPNOTSUPP;
636a5d36 6110
074ac8df 6111 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6112 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6113 return -EOPNOTSUPP;
eec60b03 6114
19957bb3 6115 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6116
19957bb3
JB		 6117 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6118 if (reason_code == 0) {
f4a11bb0 6119 /* Reason Code 0 is reserved */
4c476991 6120 return -EINVAL;
255e737e 6121 }
636a5d36
JM		 6122
6123 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6124 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6125 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6126 }
6127
d5cdfacb
JM		 6128 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6129
91bf9b26
JB		 6130 wdev_lock(dev->ieee80211_ptr);
6131 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6132 local_state_change);
6133 wdev_unlock(dev->ieee80211_ptr);
6134 return err;
636a5d36
JM		 6135}
6136
6137static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6138{
4c476991
JB		 6139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6140 struct net_device *dev = info->user_ptr[1];
19957bb3 6141 const u8 *ie = NULL, *bssid;
91bf9b26 6142 int ie_len = 0, err;
19957bb3 6143 u16 reason_code;
d5cdfacb 6144 bool local_state_change;
636a5d36 6145
f4a11bb0
JB		 6146 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6147 return -EINVAL;
6148
6149 if (!info->attrs[NL80211_ATTR_MAC])
6150 return -EINVAL;
6151
6152 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6153 return -EINVAL;
6154
4c476991
JB		 6155 if (!rdev->ops->disassoc)
6156 return -EOPNOTSUPP;
636a5d36 6157
074ac8df 6158 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6159 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6160 return -EOPNOTSUPP;
eec60b03 6161
19957bb3 6162 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6163
19957bb3
JB		 6164 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6165 if (reason_code == 0) {
f4a11bb0 6166 /* Reason Code 0 is reserved */
4c476991 6167 return -EINVAL;
255e737e 6168 }
636a5d36
JM		 6169
6170 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6171 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6172 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6173 }
6174
d5cdfacb
JM		 6175 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6176
91bf9b26
JB		 6177 wdev_lock(dev->ieee80211_ptr);
6178 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6179 local_state_change);
6180 wdev_unlock(dev->ieee80211_ptr);
6181 return err;
636a5d36
JM		 6182}
6183
dd5b4cc7
FF		 6184static bool
6185nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6186 int mcast_rate[IEEE80211_NUM_BANDS],
6187 int rateval)
6188{
6189 struct wiphy *wiphy = &rdev->wiphy;
6190 bool found = false;
6191 int band, i;
6192
6193 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6194 struct ieee80211_supported_band *sband;
6195
6196 sband = wiphy->bands[band];
6197 if (!sband)
6198 continue;
6199
6200 for (i = 0; i < sband->n_bitrates; i++) {
6201 if (sband->bitrates[i].bitrate == rateval) {
6202 mcast_rate[band] = i + 1;
6203 found = true;
6204 break;
6205 }
6206 }
6207 }
6208
6209 return found;
6210}
6211
04a773ad
JB		 6212static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6213{
4c476991
JB		 6214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6215 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6216 struct cfg80211_ibss_params ibss;
6217 struct wiphy *wiphy;
fffd0934 6218 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6219 int err;
6220
8e30bc55
JB		 6221 memset(&ibss, 0, sizeof(ibss));
6222
04a773ad
JB		 6223 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6224 return -EINVAL;
6225
683b6d3b 6226 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6227 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6228 return -EINVAL;
6229
8e30bc55
JB		 6230 ibss.beacon_interval = 100;
6231
6232 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6233 ibss.beacon_interval =
6234 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6235 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6236 return -EINVAL;
6237 }
6238
4c476991
JB		 6239 if (!rdev->ops->join_ibss)
6240 return -EOPNOTSUPP;
04a773ad 6241
4c476991
JB		 6242 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6243 return -EOPNOTSUPP;
04a773ad 6244
79c97e97 6245 wiphy = &rdev->wiphy;
04a773ad 6246
39193498 6247 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6248 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6249
6250 if (!is_valid_ether_addr(ibss.bssid))
6251 return -EINVAL;
6252 }
04a773ad
JB		 6253 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6254 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6255
6256 if (info->attrs[NL80211_ATTR_IE]) {
6257 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6258 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6259 }
6260
683b6d3b
JB		 6261 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6262 if (err)
6263 return err;
04a773ad 6264
683b6d3b 6265 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6266 return -EINVAL;
6267
db9c64cf
JB		 6268 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6269 return -EINVAL;
6270 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6271 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 6272 return -EINVAL;
db9c64cf 6273
04a773ad 6274 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6275 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6276
fbd2c8dc
TP		 6277 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6278 u8 *rates =
6279 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6280 int n_rates =
6281 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6282 struct ieee80211_supported_band *sband =
683b6d3b 6283 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6284
34850ab2
JB		 6285 err = ieee80211_get_ratemask(sband, rates, n_rates,
6286 &ibss.basic_rates);
6287 if (err)
6288 return err;
fbd2c8dc 6289 }
dd5b4cc7
FF		 6290
6291 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6292 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6293 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6294 return -EINVAL;
fbd2c8dc 6295
4c476991 6296 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6297 bool no_ht = false;
6298
4c476991 6299 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6300 info->attrs[NL80211_ATTR_KEYS],
6301 &no_ht);
4c476991
JB		 6302 if (IS_ERR(connkeys))
6303 return PTR_ERR(connkeys);
de7044ee 6304
3d9d1d66
JB		 6305 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6306 no_ht) {
de7044ee
SM		 6307 kfree(connkeys);
6308 return -EINVAL;
6309 }
4c476991 6310 }
04a773ad 6311
267335d6
AQ		 6312 ibss.control_port =
6313 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6314
4c476991 6315 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6316 if (err)
6317 kfree(connkeys);
04a773ad
JB		 6318 return err;
6319}
6320
6321static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6322{
4c476991
JB		 6323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6324 struct net_device *dev = info->user_ptr[1];
04a773ad 6325
4c476991
JB		 6326 if (!rdev->ops->leave_ibss)
6327 return -EOPNOTSUPP;
04a773ad 6328
4c476991
JB		 6329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6330 return -EOPNOTSUPP;
04a773ad 6331
4c476991 6332 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6333}
6334
f4e583c8
AQ		 6335static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6336{
6337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6338 struct net_device *dev = info->user_ptr[1];
6339 int mcast_rate[IEEE80211_NUM_BANDS];
6340 u32 nla_rate;
6341 int err;
6342
6343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6345 return -EOPNOTSUPP;
6346
6347 if (!rdev->ops->set_mcast_rate)
6348 return -EOPNOTSUPP;
6349
6350 memset(mcast_rate, 0, sizeof(mcast_rate));
6351
6352 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6353 return -EINVAL;
6354
6355 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6356 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6357 return -EINVAL;
6358
6359 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6360
6361 return err;
6362}
6363
6364
aff89a9b
JB		 6365#ifdef CONFIG_NL80211_TESTMODE
6366static struct genl_multicast_group nl80211_testmode_mcgrp = {
6367 .name = "testmode",
6368};
6369
6370static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6371{
4c476991 6372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6373 int err;
6374
6375 if (!info->attrs[NL80211_ATTR_TESTDATA])
6376 return -EINVAL;
6377
aff89a9b
JB		 6378 err = -EOPNOTSUPP;
6379 if (rdev->ops->testmode_cmd) {
6380 rdev->testmode_info = info;
e35e4d28 6381 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6382 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6383 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6384 rdev->testmode_info = NULL;
6385 }
6386
aff89a9b
JB		 6387 return err;
6388}
6389
71063f0e
WYG		 6390static int nl80211_testmode_dump(struct sk_buff *skb,
6391 struct netlink_callback *cb)
6392{
00918d33 6393 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6394 int err;
6395 long phy_idx;
6396 void *data = NULL;
6397 int data_len = 0;
6398
5fe231e8
JB		 6399 rtnl_lock();
6400
71063f0e
WYG		 6401 if (cb->args[0]) {
6402 /*
6403 * 0 is a valid index, but not valid for args[0],
6404 * so we need to offset by 1.
6405 */
6406 phy_idx = cb->args[0] - 1;
6407 } else {
6408 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6409 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6410 nl80211_policy);
6411 if (err)
5fe231e8 6412 goto out_err;
00918d33 6413
2bd7e35d
JB		 6414 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6415 nl80211_fam.attrbuf);
6416 if (IS_ERR(rdev)) {
5fe231e8
JB		 6417 err = PTR_ERR(rdev);
6418 goto out_err;
00918d33 6419 }
2bd7e35d
JB		 6420 phy_idx = rdev->wiphy_idx;
6421 rdev = NULL;
2bd7e35d 6422
71063f0e
WYG		 6423 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6424 cb->args[1] =
6425 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6426 }
6427
6428 if (cb->args[1]) {
6429 data = nla_data((void *)cb->args[1]);
6430 data_len = nla_len((void *)cb->args[1]);
6431 }
6432
00918d33
JB		 6433 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6434 if (!rdev) {
5fe231e8
JB		 6435 err = -ENOENT;
6436 goto out_err;
71063f0e 6437 }
71063f0e 6438
00918d33 6439 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6440 err = -EOPNOTSUPP;
6441 goto out_err;
6442 }
6443
6444 while (1) {
15e47304 6445 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6446 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6447 NL80211_CMD_TESTMODE);
6448 struct nlattr *tmdata;
6449
9360ffd1 6450 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6451 genlmsg_cancel(skb, hdr);
6452 break;
6453 }
6454
6455 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6456 if (!tmdata) {
6457 genlmsg_cancel(skb, hdr);
6458 break;
6459 }
e35e4d28 6460 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6461 nla_nest_end(skb, tmdata);
6462
6463 if (err == -ENOBUFS || err == -ENOENT) {
6464 genlmsg_cancel(skb, hdr);
6465 break;
6466 } else if (err) {
6467 genlmsg_cancel(skb, hdr);
6468 goto out_err;
6469 }
6470
6471 genlmsg_end(skb, hdr);
6472 }
6473
6474 err = skb->len;
6475 /* see above */
6476 cb->args[0] = phy_idx + 1;
6477 out_err:
5fe231e8 6478 rtnl_unlock();
71063f0e
WYG		 6479 return err;
6480}
6481
aff89a9b
JB		 6482static struct sk_buff *
6483__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6484 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6485{
6486 struct sk_buff *skb;
6487 void *hdr;
6488 struct nlattr *data;
6489
6490 skb = nlmsg_new(approxlen + 100, gfp);
6491 if (!skb)
6492 return NULL;
6493
15e47304 6494 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6495 if (!hdr) {
6496 kfree_skb(skb);
6497 return NULL;
6498 }
6499
9360ffd1
DM		 6500 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6501 goto nla_put_failure;
aff89a9b
JB		 6502 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6503
6504 ((void **)skb->cb)[0] = rdev;
6505 ((void **)skb->cb)[1] = hdr;
6506 ((void **)skb->cb)[2] = data;
6507
6508 return skb;
6509
6510 nla_put_failure:
6511 kfree_skb(skb);
6512 return NULL;
6513}
6514
6515struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6516 int approxlen)
6517{
6518 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6519
6520 if (WARN_ON(!rdev->testmode_info))
6521 return NULL;
6522
6523 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6524 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6525 rdev->testmode_info->snd_seq,
6526 GFP_KERNEL);
6527}
6528EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6529
6530int cfg80211_testmode_reply(struct sk_buff *skb)
6531{
6532 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6533 void *hdr = ((void **)skb->cb)[1];
6534 struct nlattr *data = ((void **)skb->cb)[2];
6535
6536 if (WARN_ON(!rdev->testmode_info)) {
6537 kfree_skb(skb);
6538 return -EINVAL;
6539 }
6540
6541 nla_nest_end(skb, data);
6542 genlmsg_end(skb, hdr);
6543 return genlmsg_reply(skb, rdev->testmode_info);
6544}
6545EXPORT_SYMBOL(cfg80211_testmode_reply);
6546
6547struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6548 int approxlen, gfp_t gfp)
6549{
6550 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6551
6552 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6553}
6554EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6555
6556void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6557{
6558 void *hdr = ((void **)skb->cb)[1];
6559 struct nlattr *data = ((void **)skb->cb)[2];
6560
6561 nla_nest_end(skb, data);
6562 genlmsg_end(skb, hdr);
6563 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6564}
6565EXPORT_SYMBOL(cfg80211_testmode_event);
6566#endif
6567
b23aa676
SO		 6568static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6569{
4c476991
JB		 6570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6571 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6572 struct cfg80211_connect_params connect;
6573 struct wiphy *wiphy;
fffd0934 6574 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6575 int err;
6576
6577 memset(&connect, 0, sizeof(connect));
6578
6579 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6580 return -EINVAL;
6581
6582 if (!info->attrs[NL80211_ATTR_SSID] ||
6583 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6584 return -EINVAL;
6585
6586 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6587 connect.auth_type =
6588 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6589 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6590 NL80211_CMD_CONNECT))
b23aa676
SO		 6591 return -EINVAL;
6592 } else
6593 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6594
6595 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6596
c0692b8f 6597 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6598 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6599 if (err)
6600 return err;
b23aa676 6601
074ac8df 6602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6604 return -EOPNOTSUPP;
b23aa676 6605
79c97e97 6606 wiphy = &rdev->wiphy;
b23aa676 6607
4486ea98
BS		 6608 connect.bg_scan_period = -1;
6609 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6610 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6611 connect.bg_scan_period =
6612 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6613 }
6614
b23aa676
SO		 6615 if (info->attrs[NL80211_ATTR_MAC])
6616 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6617 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6618 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6619
6620 if (info->attrs[NL80211_ATTR_IE]) {
6621 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6622 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6623 }
6624
cee00a95
JM		 6625 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6626 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6627 if (connect.mfp != NL80211_MFP_REQUIRED &&
6628 connect.mfp != NL80211_MFP_NO)
6629 return -EINVAL;
6630 } else {
6631 connect.mfp = NL80211_MFP_NO;
6632 }
6633
b23aa676
SO		 6634 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6635 connect.channel =
6636 ieee80211_get_channel(wiphy,
6637 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6638 if (!connect.channel ||
4c476991
JB		 6639 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6640 return -EINVAL;
b23aa676
SO		 6641 }
6642
fffd0934
JB		 6643 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6644 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6645 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6646 if (IS_ERR(connkeys))
6647 return PTR_ERR(connkeys);
fffd0934
JB		 6648 }
6649
7e7c8926
BG		 6650 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6651 connect.flags |= ASSOC_REQ_DISABLE_HT;
6652
6653 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6654 memcpy(&connect.ht_capa_mask,
6655 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6656 sizeof(connect.ht_capa_mask));
6657
6658 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6659 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6660 kfree(connkeys);
7e7c8926 6661 return -EINVAL;
b4e4f47e 6662 }
7e7c8926
BG		 6663 memcpy(&connect.ht_capa,
6664 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6665 sizeof(connect.ht_capa));
6666 }
6667
ee2aca34
JB		 6668 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6669 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6670
6671 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6672 memcpy(&connect.vht_capa_mask,
6673 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6674 sizeof(connect.vht_capa_mask));
6675
6676 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6677 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6678 kfree(connkeys);
6679 return -EINVAL;
6680 }
6681 memcpy(&connect.vht_capa,
6682 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6683 sizeof(connect.vht_capa));
6684 }
6685
83739b03
JB		 6686 wdev_lock(dev->ieee80211_ptr);
6687 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6688 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6689 if (err)
6690 kfree(connkeys);
b23aa676
SO		 6691 return err;
6692}
6693
6694static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6695{
4c476991
JB		 6696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6697 struct net_device *dev = info->user_ptr[1];
b23aa676 6698 u16 reason;
83739b03 6699 int ret;
b23aa676
SO		 6700
6701 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6702 reason = WLAN_REASON_DEAUTH_LEAVING;
6703 else
6704 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6705
6706 if (reason == 0)
6707 return -EINVAL;
6708
074ac8df 6709 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6710 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6711 return -EOPNOTSUPP;
b23aa676 6712
83739b03
JB		 6713 wdev_lock(dev->ieee80211_ptr);
6714 ret = cfg80211_disconnect(rdev, dev, reason, true);
6715 wdev_unlock(dev->ieee80211_ptr);
6716 return ret;
b23aa676
SO		 6717}
6718
463d0183
JB		 6719static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6720{
4c476991 6721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6722 struct net *net;
6723 int err;
6724 u32 pid;
6725
6726 if (!info->attrs[NL80211_ATTR_PID])
6727 return -EINVAL;
6728
6729 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6730
463d0183 6731 net = get_net_ns_by_pid(pid);
4c476991
JB		 6732 if (IS_ERR(net))
6733 return PTR_ERR(net);
463d0183
JB		 6734
6735 err = 0;
6736
6737 /* check if anything to do */
4c476991
JB		 6738 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6739 err = cfg80211_switch_netns(rdev, net);
463d0183 6740
463d0183 6741 put_net(net);
463d0183
JB		 6742 return err;
6743}
6744
67fbb16b
SO		 6745static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6746{
4c476991 6747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6748 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6749 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6750 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6751 struct cfg80211_pmksa pmksa;
6752
6753 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6754
6755 if (!info->attrs[NL80211_ATTR_MAC])
6756 return -EINVAL;
6757
6758 if (!info->attrs[NL80211_ATTR_PMKID])
6759 return -EINVAL;
6760
67fbb16b
SO		 6761 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6762 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6763
074ac8df 6764 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6765 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6766 return -EOPNOTSUPP;
67fbb16b
SO		 6767
6768 switch (info->genlhdr->cmd) {
6769 case NL80211_CMD_SET_PMKSA:
6770 rdev_ops = rdev->ops->set_pmksa;
6771 break;
6772 case NL80211_CMD_DEL_PMKSA:
6773 rdev_ops = rdev->ops->del_pmksa;
6774 break;
6775 default:
6776 WARN_ON(1);
6777 break;
6778 }
6779
4c476991
JB		 6780 if (!rdev_ops)
6781 return -EOPNOTSUPP;
67fbb16b 6782
4c476991 6783 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6784}
6785
6786static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6787{
4c476991
JB		 6788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6789 struct net_device *dev = info->user_ptr[1];
67fbb16b 6790
074ac8df 6791 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6792 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6793 return -EOPNOTSUPP;
67fbb16b 6794
4c476991
JB		 6795 if (!rdev->ops->flush_pmksa)
6796 return -EOPNOTSUPP;
67fbb16b 6797
e35e4d28 6798 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6799}
6800
109086ce
AN		 6801static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6802{
6803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6804 struct net_device *dev = info->user_ptr[1];
6805 u8 action_code, dialog_token;
6806 u16 status_code;
6807 u8 *peer;
6808
6809 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6810 !rdev->ops->tdls_mgmt)
6811 return -EOPNOTSUPP;
6812
6813 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6814 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6815 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6816 !info->attrs[NL80211_ATTR_IE] ||
6817 !info->attrs[NL80211_ATTR_MAC])
6818 return -EINVAL;
6819
6820 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6821 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6822 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6823 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6824
e35e4d28
HG		 6825 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6826 dialog_token, status_code,
6827 nla_data(info->attrs[NL80211_ATTR_IE]),
6828 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6829}
6830
6831static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6832{
6833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6834 struct net_device *dev = info->user_ptr[1];
6835 enum nl80211_tdls_operation operation;
6836 u8 *peer;
6837
6838 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6839 !rdev->ops->tdls_oper)
6840 return -EOPNOTSUPP;
6841
6842 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6843 !info->attrs[NL80211_ATTR_MAC])
6844 return -EINVAL;
6845
6846 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6847 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6848
e35e4d28 6849 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6850}
6851
9588bbd5
JM		 6852static int nl80211_remain_on_channel(struct sk_buff *skb,
6853 struct genl_info *info)
6854{
4c476991 6855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6856 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6857 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6858 struct sk_buff *msg;
6859 void *hdr;
6860 u64 cookie;
683b6d3b 6861 u32 duration;
9588bbd5
JM		 6862 int err;
6863
6864 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6865 !info->attrs[NL80211_ATTR_DURATION])
6866 return -EINVAL;
6867
6868 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6869
ebf348fc
JB		 6870 if (!rdev->ops->remain_on_channel ||
6871 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6872 return -EOPNOTSUPP;
6873
9588bbd5 6874 /*
ebf348fc
JB		 6875 * We should be on that channel for at least a minimum amount of
6876 * time (10ms) but no longer than the driver supports.
9588bbd5 6877 */
ebf348fc 6878 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6879 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6880 return -EINVAL;
6881
683b6d3b
JB		 6882 err = nl80211_parse_chandef(rdev, info, &chandef);
6883 if (err)
6884 return err;
9588bbd5
JM		 6885
6886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6887 if (!msg)
6888 return -ENOMEM;
9588bbd5 6889
15e47304 6890 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6891 NL80211_CMD_REMAIN_ON_CHANNEL);
6892
6893 if (IS_ERR(hdr)) {
6894 err = PTR_ERR(hdr);
6895 goto free_msg;
6896 }
6897
683b6d3b
JB		 6898 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6899 duration, &cookie);
9588bbd5
JM		 6900
6901 if (err)
6902 goto free_msg;
6903
9360ffd1
DM		 6904 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6905 goto nla_put_failure;
9588bbd5
JM		 6906
6907 genlmsg_end(msg, hdr);
4c476991
JB		 6908
6909 return genlmsg_reply(msg, info);
9588bbd5
JM		 6910
6911 nla_put_failure:
6912 err = -ENOBUFS;
6913 free_msg:
6914 nlmsg_free(msg);
9588bbd5
JM		 6915 return err;
6916}
6917
6918static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6919 struct genl_info *info)
6920{
4c476991 6921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6922 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6923 u64 cookie;
9588bbd5
JM		 6924
6925 if (!info->attrs[NL80211_ATTR_COOKIE])
6926 return -EINVAL;
6927
4c476991
JB		 6928 if (!rdev->ops->cancel_remain_on_channel)
6929 return -EOPNOTSUPP;
9588bbd5 6930
9588bbd5
JM		 6931 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6932
e35e4d28 6933 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6934}
6935
13ae75b1
JM		 6936static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6937 u8 *rates, u8 rates_len)
6938{
6939 u8 i;
6940 u32 mask = 0;
6941
6942 for (i = 0; i < rates_len; i++) {
6943 int rate = (rates[i] & 0x7f) * 5;
6944 int ridx;
6945 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6946 struct ieee80211_rate *srate =
6947 &sband->bitrates[ridx];
6948 if (rate == srate->bitrate) {
6949 mask |= 1 << ridx;
6950 break;
6951 }
6952 }
6953 if (ridx == sband->n_bitrates)
6954 return 0; /* rate not found */
6955 }
6956
6957 return mask;
6958}
6959
24db78c0
SW		 6960static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6961 u8 *rates, u8 rates_len,
6962 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6963{
6964 u8 i;
6965
6966 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6967
6968 for (i = 0; i < rates_len; i++) {
6969 int ridx, rbit;
6970
6971 ridx = rates[i] / 8;
6972 rbit = BIT(rates[i] % 8);
6973
6974 /* check validity */
910570b5 6975 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6976 return false;
6977
6978 /* check availability */
6979 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6980 mcs[ridx] |= rbit;
6981 else
6982 return false;
6983 }
6984
6985 return true;
6986}
6987
b54452b0 6988static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6989 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6990 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6991 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6992 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6993};
6994
6995static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6996 struct genl_info *info)
6997{
6998 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7000 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7001 int rem, i;
7002 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7003 struct nlattr *tx_rates;
7004 struct ieee80211_supported_band *sband;
7005
7006 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7007 return -EINVAL;
7008
4c476991
JB		 7009 if (!rdev->ops->set_bitrate_mask)
7010 return -EOPNOTSUPP;
13ae75b1
JM		 7011
7012 memset(&mask, 0, sizeof(mask));
7013 /* Default to all rates enabled */
7014 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7015 sband = rdev->wiphy.bands[i];
7016 mask.control[i].legacy =
7017 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7018 if (sband)
7019 memcpy(mask.control[i].mcs,
7020 sband->ht_cap.mcs.rx_mask,
7021 sizeof(mask.control[i].mcs));
7022 else
7023 memset(mask.control[i].mcs, 0,
7024 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7025 }
7026
7027 /*
7028 * The nested attribute uses enum nl80211_band as the index. This maps
7029 * directly to the enum ieee80211_band values used in cfg80211.
7030 */
24db78c0 7031 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7032 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7033 {
7034 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7035 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7036 return -EINVAL;
13ae75b1 7037 sband = rdev->wiphy.bands[band];
4c476991
JB		 7038 if (sband == NULL)
7039 return -EINVAL;
13ae75b1
JM		 7040 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7041 nla_len(tx_rates), nl80211_txattr_policy);
7042 if (tb[NL80211_TXRATE_LEGACY]) {
7043 mask.control[band].legacy = rateset_to_mask(
7044 sband,
7045 nla_data(tb[NL80211_TXRATE_LEGACY]),
7046 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7047 if ((mask.control[band].legacy == 0) &&
7048 nla_len(tb[NL80211_TXRATE_LEGACY]))
7049 return -EINVAL;
24db78c0
SW		 7050 }
7051 if (tb[NL80211_TXRATE_MCS]) {
7052 if (!ht_rateset_to_mask(
7053 sband,
7054 nla_data(tb[NL80211_TXRATE_MCS]),
7055 nla_len(tb[NL80211_TXRATE_MCS]),
7056 mask.control[band].mcs))
7057 return -EINVAL;
7058 }
7059
7060 if (mask.control[band].legacy == 0) {
7061 /* don't allow empty legacy rates if HT
7062 * is not even supported. */
7063 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7064 return -EINVAL;
7065
7066 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7067 if (mask.control[band].mcs[i])
7068 break;
7069
7070 /* legacy and mcs rates may not be both empty */
7071 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7072 return -EINVAL;
13ae75b1
JM		 7073 }
7074 }
7075
e35e4d28 7076 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7077}
7078
2e161f78 7079static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7080{
4c476991 7081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7082 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7083 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7084
7085 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7086 return -EINVAL;
7087
2e161f78
JB		 7088 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7089 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7090
71bbc994
JB		 7091 switch (wdev->iftype) {
7092 case NL80211_IFTYPE_STATION:
7093 case NL80211_IFTYPE_ADHOC:
7094 case NL80211_IFTYPE_P2P_CLIENT:
7095 case NL80211_IFTYPE_AP:
7096 case NL80211_IFTYPE_AP_VLAN:
7097 case NL80211_IFTYPE_MESH_POINT:
7098 case NL80211_IFTYPE_P2P_GO:
98104fde 7099 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7100 break;
7101 default:
4c476991 7102 return -EOPNOTSUPP;
71bbc994 7103 }
026331c4
JM		 7104
7105 /* not much point in registering if we can't reply */
4c476991
JB		 7106 if (!rdev->ops->mgmt_tx)
7107 return -EOPNOTSUPP;
026331c4 7108
15e47304 7109 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7110 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7111 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7112}
7113
2e161f78 7114static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7115{
4c476991 7116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7117 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7118 struct cfg80211_chan_def chandef;
026331c4 7119 int err;
d64d373f 7120 void *hdr = NULL;
026331c4 7121 u64 cookie;
e247bd90 7122 struct sk_buff *msg = NULL;
f7ca38df 7123 unsigned int wait = 0;
e247bd90
JB		 7124 bool offchan, no_cck, dont_wait_for_ack;
7125
7126 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7127
683b6d3b 7128 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7129 return -EINVAL;
7130
4c476991
JB		 7131 if (!rdev->ops->mgmt_tx)
7132 return -EOPNOTSUPP;
026331c4 7133
71bbc994
JB		 7134 switch (wdev->iftype) {
7135 case NL80211_IFTYPE_STATION:
7136 case NL80211_IFTYPE_ADHOC:
7137 case NL80211_IFTYPE_P2P_CLIENT:
7138 case NL80211_IFTYPE_AP:
7139 case NL80211_IFTYPE_AP_VLAN:
7140 case NL80211_IFTYPE_MESH_POINT:
7141 case NL80211_IFTYPE_P2P_GO:
98104fde 7142 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7143 break;
7144 default:
4c476991 7145 return -EOPNOTSUPP;
71bbc994 7146 }
026331c4 7147
f7ca38df 7148 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7149 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7150 return -EINVAL;
7151 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7152
7153 /*
7154 * We should wait on the channel for at least a minimum amount
7155 * of time (10ms) but no longer than the driver supports.
7156 */
7157 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7158 wait > rdev->wiphy.max_remain_on_channel_duration)
7159 return -EINVAL;
7160
f7ca38df
JB		 7161 }
7162
f7ca38df
JB		 7163 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7164
7c4ef712
JB		 7165 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7166 return -EINVAL;
7167
e9f935e3
RM		 7168 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7169
683b6d3b
JB		 7170 err = nl80211_parse_chandef(rdev, info, &chandef);
7171 if (err)
7172 return err;
026331c4 7173
e247bd90
JB		 7174 if (!dont_wait_for_ack) {
7175 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7176 if (!msg)
7177 return -ENOMEM;
026331c4 7178
15e47304 7179 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7180 NL80211_CMD_FRAME);
026331c4 7181
e247bd90
JB		 7182 if (IS_ERR(hdr)) {
7183 err = PTR_ERR(hdr);
7184 goto free_msg;
7185 }
026331c4 7186 }
e247bd90 7187
683b6d3b 7188 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7189 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7190 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7191 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7192 if (err)
7193 goto free_msg;
7194
e247bd90 7195 if (msg) {
9360ffd1
DM		 7196 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7197 goto nla_put_failure;
026331c4 7198
e247bd90
JB		 7199 genlmsg_end(msg, hdr);
7200 return genlmsg_reply(msg, info);
7201 }
7202
7203 return 0;
026331c4
JM		 7204
7205 nla_put_failure:
7206 err = -ENOBUFS;
7207 free_msg:
7208 nlmsg_free(msg);
026331c4
JM		 7209 return err;
7210}
7211
f7ca38df
JB		 7212static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7213{
7214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7215 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7216 u64 cookie;
7217
7218 if (!info->attrs[NL80211_ATTR_COOKIE])
7219 return -EINVAL;
7220
7221 if (!rdev->ops->mgmt_tx_cancel_wait)
7222 return -EOPNOTSUPP;
7223
71bbc994
JB		 7224 switch (wdev->iftype) {
7225 case NL80211_IFTYPE_STATION:
7226 case NL80211_IFTYPE_ADHOC:
7227 case NL80211_IFTYPE_P2P_CLIENT:
7228 case NL80211_IFTYPE_AP:
7229 case NL80211_IFTYPE_AP_VLAN:
7230 case NL80211_IFTYPE_P2P_GO:
98104fde 7231 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7232 break;
7233 default:
f7ca38df 7234 return -EOPNOTSUPP;
71bbc994 7235 }
f7ca38df
JB		 7236
7237 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7238
e35e4d28 7239 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7240}
7241
ffb9eb3d
KV		 7242static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7243{
4c476991 7244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7245 struct wireless_dev *wdev;
4c476991 7246 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7247 u8 ps_state;
7248 bool state;
7249 int err;
7250
4c476991
JB		 7251 if (!info->attrs[NL80211_ATTR_PS_STATE])
7252 return -EINVAL;
ffb9eb3d
KV		 7253
7254 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7255
4c476991
JB		 7256 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7257 return -EINVAL;
ffb9eb3d
KV		 7258
7259 wdev = dev->ieee80211_ptr;
7260
4c476991
JB		 7261 if (!rdev->ops->set_power_mgmt)
7262 return -EOPNOTSUPP;
ffb9eb3d
KV		 7263
7264 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7265
7266 if (state == wdev->ps)
4c476991 7267 return 0;
ffb9eb3d 7268
e35e4d28 7269 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7270 if (!err)
7271 wdev->ps = state;
ffb9eb3d
KV		 7272 return err;
7273}
7274
7275static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7276{
4c476991 7277 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7278 enum nl80211_ps_state ps_state;
7279 struct wireless_dev *wdev;
4c476991 7280 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7281 struct sk_buff *msg;
7282 void *hdr;
7283 int err;
7284
ffb9eb3d
KV		 7285 wdev = dev->ieee80211_ptr;
7286
4c476991
JB		 7287 if (!rdev->ops->set_power_mgmt)
7288 return -EOPNOTSUPP;
ffb9eb3d
KV		 7289
7290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7291 if (!msg)
7292 return -ENOMEM;
ffb9eb3d 7293
15e47304 7294 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7295 NL80211_CMD_GET_POWER_SAVE);
7296 if (!hdr) {
4c476991 7297 err = -ENOBUFS;
ffb9eb3d
KV		 7298 goto free_msg;
7299 }
7300
7301 if (wdev->ps)
7302 ps_state = NL80211_PS_ENABLED;
7303 else
7304 ps_state = NL80211_PS_DISABLED;
7305
9360ffd1
DM		 7306 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7307 goto nla_put_failure;
ffb9eb3d
KV		 7308
7309 genlmsg_end(msg, hdr);
4c476991 7310 return genlmsg_reply(msg, info);
ffb9eb3d 7311
4c476991 7312 nla_put_failure:
ffb9eb3d 7313 err = -ENOBUFS;
4c476991 7314 free_msg:
ffb9eb3d 7315 nlmsg_free(msg);
ffb9eb3d
KV		 7316 return err;
7317}
7318
d6dc1a38
JO		 7319static struct nla_policy
7320nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7321 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7322 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7323 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7324 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7325 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7326 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7327};
7328
84f10708 7329static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7330 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7331{
7332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7333 struct wireless_dev *wdev;
7334 struct net_device *dev = info->user_ptr[1];
7335
d9d8b019 7336 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7337 return -EINVAL;
7338
7339 wdev = dev->ieee80211_ptr;
7340
7341 if (!rdev->ops->set_cqm_txe_config)
7342 return -EOPNOTSUPP;
7343
7344 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7345 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7346 return -EOPNOTSUPP;
7347
e35e4d28 7348 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7349}
7350
d6dc1a38
JO		 7351static int nl80211_set_cqm_rssi(struct genl_info *info,
7352 s32 threshold, u32 hysteresis)
7353{
4c476991 7354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 7355 struct wireless_dev *wdev;
4c476991 7356 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 7357
7358 if (threshold > 0)
7359 return -EINVAL;
7360
d6dc1a38
JO		 7361 wdev = dev->ieee80211_ptr;
7362
4c476991
JB		 7363 if (!rdev->ops->set_cqm_rssi_config)
7364 return -EOPNOTSUPP;
d6dc1a38 7365
074ac8df 7366 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7367 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7368 return -EOPNOTSUPP;
d6dc1a38 7369
e35e4d28 7370 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7371}
7372
7373static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7374{
7375 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7376 struct nlattr *cqm;
7377 int err;
7378
7379 cqm = info->attrs[NL80211_ATTR_CQM];
7380 if (!cqm) {
7381 err = -EINVAL;
7382 goto out;
7383 }
7384
7385 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7386 nl80211_attr_cqm_policy);
7387 if (err)
7388 goto out;
7389
7390 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7391 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7392 s32 threshold;
7393 u32 hysteresis;
7394 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7395 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7396 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7397 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7398 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7399 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7400 u32 rate, pkts, intvl;
7401 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7402 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7403 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7404 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7405 } else
7406 err = -EINVAL;
7407
7408out:
7409 return err;
7410}
7411
29cbe68c
JB		 7412static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7413{
7414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7415 struct net_device *dev = info->user_ptr[1];
7416 struct mesh_config cfg;
c80d545d 7417 struct mesh_setup setup;
29cbe68c
JB		 7418 int err;
7419
7420 /* start with default */
7421 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7422 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7423
24bdd9f4 7424 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7425 /* and parse parameters if given */
24bdd9f4 7426 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7427 if (err)
7428 return err;
7429 }
7430
7431 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7432 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7433 return -EINVAL;
7434
c80d545d
JC		 7435 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7436 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7437
4bb62344
CYY		 7438 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7439 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7440 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7441 return -EINVAL;
7442
9bdbf04d
MP		 7443 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7444 setup.beacon_interval =
7445 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7446 if (setup.beacon_interval < 10 ||
7447 setup.beacon_interval > 10000)
7448 return -EINVAL;
7449 }
7450
7451 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7452 setup.dtim_period =
7453 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7454 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7455 return -EINVAL;
7456 }
7457
c80d545d
JC		 7458 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7459 /* parse additional setup parameters if given */
7460 err = nl80211_parse_mesh_setup(info, &setup);
7461 if (err)
7462 return err;
7463 }
7464
d37bb18a
TP		 7465 if (setup.user_mpm)
7466 cfg.auto_open_plinks = false;
7467
cc1d2806 7468 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7469 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7470 if (err)
7471 return err;
cc1d2806
JB		 7472 } else {
7473 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7474 setup.chandef.chan = NULL;
cc1d2806
JB		 7475 }
7476
c80d545d 7477 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7478}
7479
7480static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7481{
7482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7483 struct net_device *dev = info->user_ptr[1];
7484
7485 return cfg80211_leave_mesh(rdev, dev);
7486}
7487
dfb89c56 7488#ifdef CONFIG_PM
bb92d199
AK		 7489static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7490 struct cfg80211_registered_device *rdev)
7491{
6abb9cb9 7492 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7493 struct nlattr *nl_pats, *nl_pat;
7494 int i, pat_len;
7495
6abb9cb9 7496 if (!wowlan->n_patterns)
bb92d199
AK		 7497 return 0;
7498
7499 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7500 if (!nl_pats)
7501 return -ENOBUFS;
7502
6abb9cb9 7503 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7504 nl_pat = nla_nest_start(msg, i + 1);
7505 if (!nl_pat)
7506 return -ENOBUFS;
6abb9cb9 7507 pat_len = wowlan->patterns[i].pattern_len;
bb92d199
AK		 7508 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7509 DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7510 wowlan->patterns[i].mask) ||
bb92d199 7511 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6abb9cb9 7512 pat_len, wowlan->patterns[i].pattern) ||
bb92d199 7513 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
6abb9cb9 7514 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7515 return -ENOBUFS;
7516 nla_nest_end(msg, nl_pat);
7517 }
7518 nla_nest_end(msg, nl_pats);
7519
7520 return 0;
7521}
7522
2a0e047e
JB		 7523static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7524 struct cfg80211_wowlan_tcp *tcp)
7525{
7526 struct nlattr *nl_tcp;
7527
7528 if (!tcp)
7529 return 0;
7530
7531 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7532 if (!nl_tcp)
7533 return -ENOBUFS;
7534
7535 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7536 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7537 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7538 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7539 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7540 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7541 tcp->payload_len, tcp->payload) ||
7542 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7543 tcp->data_interval) ||
7544 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7545 tcp->wake_len, tcp->wake_data) ||
7546 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7547 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7548 return -ENOBUFS;
7549
7550 if (tcp->payload_seq.len &&
7551 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7552 sizeof(tcp->payload_seq), &tcp->payload_seq))
7553 return -ENOBUFS;
7554
7555 if (tcp->payload_tok.len &&
7556 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7557 sizeof(tcp->payload_tok) + tcp->tokens_size,
7558 &tcp->payload_tok))
7559 return -ENOBUFS;
7560
e248ad30
JB		 7561 nla_nest_end(msg, nl_tcp);
7562
2a0e047e
JB		 7563 return 0;
7564}
7565
ff1b6e69
JB		 7566static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7567{
7568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7569 struct sk_buff *msg;
7570 void *hdr;
2a0e047e 7571 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7572
2a0e047e
JB		 7573 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7574 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7575 return -EOPNOTSUPP;
7576
6abb9cb9 7577 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7578 /* adjust size to have room for all the data */
6abb9cb9
JB		 7579 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7580 rdev->wiphy.wowlan_config->tcp->payload_len +
7581 rdev->wiphy.wowlan_config->tcp->wake_len +
7582 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7583 }
7584
7585 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7586 if (!msg)
7587 return -ENOMEM;
7588
15e47304 7589 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7590 NL80211_CMD_GET_WOWLAN);
7591 if (!hdr)
7592 goto nla_put_failure;
7593
6abb9cb9 7594 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7595 struct nlattr *nl_wowlan;
7596
7597 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7598 if (!nl_wowlan)
7599 goto nla_put_failure;
7600
6abb9cb9 7601 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7602 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7603 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7604 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7605 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7606 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7607 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7608 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7609 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7610 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7611 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7612 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7613 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7614 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7615 goto nla_put_failure;
2a0e047e 7616
bb92d199
AK		 7617 if (nl80211_send_wowlan_patterns(msg, rdev))
7618 goto nla_put_failure;
2a0e047e 7619
6abb9cb9
JB		 7620 if (nl80211_send_wowlan_tcp(msg,
7621 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7622 goto nla_put_failure;
7623
ff1b6e69
JB		 7624 nla_nest_end(msg, nl_wowlan);
7625 }
7626
7627 genlmsg_end(msg, hdr);
7628 return genlmsg_reply(msg, info);
7629
7630nla_put_failure:
7631 nlmsg_free(msg);
7632 return -ENOBUFS;
7633}
7634
2a0e047e
JB		 7635static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7636 struct nlattr *attr,
7637 struct cfg80211_wowlan *trig)
7638{
7639 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7640 struct cfg80211_wowlan_tcp *cfg;
7641 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7642 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7643 u32 size;
7644 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7645 int err, port;
7646
7647 if (!rdev->wiphy.wowlan.tcp)
7648 return -EINVAL;
7649
7650 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7651 nla_data(attr), nla_len(attr),
7652 nl80211_wowlan_tcp_policy);
7653 if (err)
7654 return err;
7655
7656 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7657 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7658 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7659 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7660 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7661 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7662 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7663 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7664 return -EINVAL;
7665
7666 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7667 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7668 return -EINVAL;
7669
7670 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
723d568a
JB		 7671 rdev->wiphy.wowlan.tcp->data_interval_max ||
7672 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7673 return -EINVAL;
7674
7675 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7676 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7677 return -EINVAL;
7678
7679 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7680 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7681 return -EINVAL;
7682
7683 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7684 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7685
7686 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7687 tokens_size = tokln - sizeof(*tok);
7688
7689 if (!tok->len || tokens_size % tok->len)
7690 return -EINVAL;
7691 if (!rdev->wiphy.wowlan.tcp->tok)
7692 return -EINVAL;
7693 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7694 return -EINVAL;
7695 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7696 return -EINVAL;
7697 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7698 return -EINVAL;
7699 if (tok->offset + tok->len > data_size)
7700 return -EINVAL;
7701 }
7702
7703 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7704 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7705 if (!rdev->wiphy.wowlan.tcp->seq)
7706 return -EINVAL;
7707 if (seq->len == 0 || seq->len > 4)
7708 return -EINVAL;
7709 if (seq->len + seq->offset > data_size)
7710 return -EINVAL;
7711 }
7712
7713 size = sizeof(*cfg);
7714 size += data_size;
7715 size += wake_size + wake_mask_size;
7716 size += tokens_size;
7717
7718 cfg = kzalloc(size, GFP_KERNEL);
7719 if (!cfg)
7720 return -ENOMEM;
7721 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7722 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7723 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7724 ETH_ALEN);
7725 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7726 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7727 else
7728 port = 0;
7729#ifdef CONFIG_INET
7730 /* allocate a socket and port for it and use it */
7731 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7732 IPPROTO_TCP, &cfg->sock, 1);
7733 if (err) {
7734 kfree(cfg);
7735 return err;
7736 }
7737 if (inet_csk_get_port(cfg->sock->sk, port)) {
7738 sock_release(cfg->sock);
7739 kfree(cfg);
7740 return -EADDRINUSE;
7741 }
7742 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7743#else
7744 if (!port) {
7745 kfree(cfg);
7746 return -EINVAL;
7747 }
7748 cfg->src_port = port;
7749#endif
7750
7751 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7752 cfg->payload_len = data_size;
7753 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7754 memcpy((void *)cfg->payload,
7755 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7756 data_size);
7757 if (seq)
7758 cfg->payload_seq = *seq;
7759 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7760 cfg->wake_len = wake_size;
7761 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7762 memcpy((void *)cfg->wake_data,
7763 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7764 wake_size);
7765 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7766 data_size + wake_size;
7767 memcpy((void *)cfg->wake_mask,
7768 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7769 wake_mask_size);
7770 if (tok) {
7771 cfg->tokens_size = tokens_size;
7772 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7773 }
7774
7775 trig->tcp = cfg;
7776
7777 return 0;
7778}
7779
ff1b6e69
JB		 7780static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7781{
7782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7783 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7784 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7785 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7786 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7787 int err, i;
6abb9cb9 7788 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 7789
2a0e047e
JB		 7790 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7791 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7792 return -EOPNOTSUPP;
7793
ae33bd81
JB		 7794 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7795 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7796 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 7797 goto set_wakeup;
7798 }
ff1b6e69
JB		 7799
7800 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7801 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7802 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7803 nl80211_wowlan_policy);
7804 if (err)
7805 return err;
7806
7807 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7808 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7809 return -EINVAL;
7810 new_triggers.any = true;
7811 }
7812
7813 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7814 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7815 return -EINVAL;
7816 new_triggers.disconnect = true;
7817 }
7818
7819 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7820 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7821 return -EINVAL;
7822 new_triggers.magic_pkt = true;
7823 }
7824
77dbbb13
JB		 7825 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7826 return -EINVAL;
7827
7828 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7829 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7830 return -EINVAL;
7831 new_triggers.gtk_rekey_failure = true;
7832 }
7833
7834 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7835 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7836 return -EINVAL;
7837 new_triggers.eap_identity_req = true;
7838 }
7839
7840 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7841 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7842 return -EINVAL;
7843 new_triggers.four_way_handshake = true;
7844 }
7845
7846 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7847 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7848 return -EINVAL;
7849 new_triggers.rfkill_release = true;
7850 }
7851
ff1b6e69
JB		 7852 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7853 struct nlattr *pat;
7854 int n_patterns = 0;
bb92d199 7855 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7856 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7857
7858 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7859 rem)
7860 n_patterns++;
7861 if (n_patterns > wowlan->n_patterns)
7862 return -EINVAL;
7863
7864 new_triggers.patterns = kcalloc(n_patterns,
7865 sizeof(new_triggers.patterns[0]),
7866 GFP_KERNEL);
7867 if (!new_triggers.patterns)
7868 return -ENOMEM;
7869
7870 new_triggers.n_patterns = n_patterns;
7871 i = 0;
7872
7873 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7874 rem) {
7875 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7876 nla_data(pat), nla_len(pat), NULL);
7877 err = -EINVAL;
7878 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7879 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7880 goto error;
7881 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7882 mask_len = DIV_ROUND_UP(pat_len, 8);
7883 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7884 mask_len)
7885 goto error;
7886 if (pat_len > wowlan->pattern_max_len ||
7887 pat_len < wowlan->pattern_min_len)
7888 goto error;
7889
bb92d199
AK		 7890 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7891 pkt_offset = 0;
7892 else
7893 pkt_offset = nla_get_u32(
7894 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7895 if (pkt_offset > wowlan->max_pkt_offset)
7896 goto error;
7897 new_triggers.patterns[i].pkt_offset = pkt_offset;
7898
ff1b6e69
JB		 7899 new_triggers.patterns[i].mask =
7900 kmalloc(mask_len + pat_len, GFP_KERNEL);
7901 if (!new_triggers.patterns[i].mask) {
7902 err = -ENOMEM;
7903 goto error;
7904 }
7905 new_triggers.patterns[i].pattern =
7906 new_triggers.patterns[i].mask + mask_len;
7907 memcpy(new_triggers.patterns[i].mask,
7908 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7909 mask_len);
7910 new_triggers.patterns[i].pattern_len = pat_len;
7911 memcpy(new_triggers.patterns[i].pattern,
7912 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7913 pat_len);
7914 i++;
7915 }
7916 }
7917
2a0e047e
JB		 7918 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7919 err = nl80211_parse_wowlan_tcp(
7920 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7921 &new_triggers);
7922 if (err)
7923 goto error;
7924 }
7925
ae33bd81
JB		 7926 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7927 if (!ntrig) {
7928 err = -ENOMEM;
7929 goto error;
ff1b6e69 7930 }
ae33bd81 7931 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 7932 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 7933
ae33bd81 7934 set_wakeup:
6abb9cb9
JB		 7935 if (rdev->ops->set_wakeup &&
7936 prev_enabled != !!rdev->wiphy.wowlan_config)
7937 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 7938
ff1b6e69
JB		 7939 return 0;
7940 error:
7941 for (i = 0; i < new_triggers.n_patterns; i++)
7942 kfree(new_triggers.patterns[i].mask);
7943 kfree(new_triggers.patterns);
2a0e047e
JB		 7944 if (new_triggers.tcp && new_triggers.tcp->sock)
7945 sock_release(new_triggers.tcp->sock);
7946 kfree(new_triggers.tcp);
ff1b6e69
JB		 7947 return err;
7948}
dfb89c56 7949#endif
ff1b6e69 7950
e5497d76
JB		 7951static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7952{
7953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7954 struct net_device *dev = info->user_ptr[1];
7955 struct wireless_dev *wdev = dev->ieee80211_ptr;
7956 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7957 struct cfg80211_gtk_rekey_data rekey_data;
7958 int err;
7959
7960 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7961 return -EINVAL;
7962
7963 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7964 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7965 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7966 nl80211_rekey_policy);
7967 if (err)
7968 return err;
7969
7970 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7971 return -ERANGE;
7972 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7973 return -ERANGE;
7974 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7975 return -ERANGE;
7976
7977 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7978 NL80211_KEK_LEN);
7979 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7980 NL80211_KCK_LEN);
7981 memcpy(rekey_data.replay_ctr,
7982 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7983 NL80211_REPLAY_CTR_LEN);
7984
7985 wdev_lock(wdev);
7986 if (!wdev->current_bss) {
7987 err = -ENOTCONN;
7988 goto out;
7989 }
7990
7991 if (!rdev->ops->set_rekey_data) {
7992 err = -EOPNOTSUPP;
7993 goto out;
7994 }
7995
e35e4d28 7996 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7997 out:
7998 wdev_unlock(wdev);
7999 return err;
8000}
8001
28946da7
JB		 8002static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8003 struct genl_info *info)
8004{
8005 struct net_device *dev = info->user_ptr[1];
8006 struct wireless_dev *wdev = dev->ieee80211_ptr;
8007
8008 if (wdev->iftype != NL80211_IFTYPE_AP &&
8009 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8010 return -EINVAL;
8011
15e47304 8012 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8013 return -EBUSY;
8014
15e47304 8015 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8016 return 0;
8017}
8018
7f6cf311
JB		 8019static int nl80211_probe_client(struct sk_buff *skb,
8020 struct genl_info *info)
8021{
8022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8023 struct net_device *dev = info->user_ptr[1];
8024 struct wireless_dev *wdev = dev->ieee80211_ptr;
8025 struct sk_buff *msg;
8026 void *hdr;
8027 const u8 *addr;
8028 u64 cookie;
8029 int err;
8030
8031 if (wdev->iftype != NL80211_IFTYPE_AP &&
8032 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8033 return -EOPNOTSUPP;
8034
8035 if (!info->attrs[NL80211_ATTR_MAC])
8036 return -EINVAL;
8037
8038 if (!rdev->ops->probe_client)
8039 return -EOPNOTSUPP;
8040
8041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8042 if (!msg)
8043 return -ENOMEM;
8044
15e47304 8045 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 8046 NL80211_CMD_PROBE_CLIENT);
8047
8048 if (IS_ERR(hdr)) {
8049 err = PTR_ERR(hdr);
8050 goto free_msg;
8051 }
8052
8053 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8054
e35e4d28 8055 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8056 if (err)
8057 goto free_msg;
8058
9360ffd1
DM		 8059 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8060 goto nla_put_failure;
7f6cf311
JB		 8061
8062 genlmsg_end(msg, hdr);
8063
8064 return genlmsg_reply(msg, info);
8065
8066 nla_put_failure:
8067 err = -ENOBUFS;
8068 free_msg:
8069 nlmsg_free(msg);
8070 return err;
8071}
8072
5e760230
JB		 8073static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8074{
8075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8076 struct cfg80211_beacon_registration *reg, *nreg;
8077 int rv;
5e760230
JB		 8078
8079 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8080 return -EOPNOTSUPP;
8081
37c73b5f
BG		 8082 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8083 if (!nreg)
8084 return -ENOMEM;
8085
8086 /* First, check if already registered. */
8087 spin_lock_bh(&rdev->beacon_registrations_lock);
8088 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8089 if (reg->nlportid == info->snd_portid) {
8090 rv = -EALREADY;
8091 goto out_err;
8092 }
8093 }
8094 /* Add it to the list */
8095 nreg->nlportid = info->snd_portid;
8096 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8097
37c73b5f 8098 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8099
8100 return 0;
37c73b5f
BG		 8101out_err:
8102 spin_unlock_bh(&rdev->beacon_registrations_lock);
8103 kfree(nreg);
8104 return rv;
5e760230
JB		 8105}
8106
98104fde
JB		 8107static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8108{
8109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8110 struct wireless_dev *wdev = info->user_ptr[1];
8111 int err;
8112
8113 if (!rdev->ops->start_p2p_device)
8114 return -EOPNOTSUPP;
8115
8116 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8117 return -EOPNOTSUPP;
8118
8119 if (wdev->p2p_started)
8120 return 0;
8121
98104fde 8122 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8123 if (err)
8124 return err;
8125
eeb126e9 8126 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8127 if (err)
8128 return err;
8129
8130 wdev->p2p_started = true;
98104fde 8131 rdev->opencount++;
98104fde
JB		 8132
8133 return 0;
8134}
8135
8136static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8137{
8138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8139 struct wireless_dev *wdev = info->user_ptr[1];
8140
8141 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8142 return -EOPNOTSUPP;
8143
8144 if (!rdev->ops->stop_p2p_device)
8145 return -EOPNOTSUPP;
8146
f9f47529 8147 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8148
8149 return 0;
8150}
8151
3713b4e3
JB		 8152static int nl80211_get_protocol_features(struct sk_buff *skb,
8153 struct genl_info *info)
8154{
8155 void *hdr;
8156 struct sk_buff *msg;
8157
8158 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8159 if (!msg)
8160 return -ENOMEM;
8161
8162 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8163 NL80211_CMD_GET_PROTOCOL_FEATURES);
8164 if (!hdr)
8165 goto nla_put_failure;
8166
8167 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8168 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8169 goto nla_put_failure;
8170
8171 genlmsg_end(msg, hdr);
8172 return genlmsg_reply(msg, info);
8173
8174 nla_put_failure:
8175 kfree_skb(msg);
8176 return -ENOBUFS;
8177}
8178
355199e0
JM		 8179static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8180{
8181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8182 struct cfg80211_update_ft_ies_params ft_params;
8183 struct net_device *dev = info->user_ptr[1];
8184
8185 if (!rdev->ops->update_ft_ies)
8186 return -EOPNOTSUPP;
8187
8188 if (!info->attrs[NL80211_ATTR_MDID] ||
8189 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8190 return -EINVAL;
8191
8192 memset(&ft_params, 0, sizeof(ft_params));
8193 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8194 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8195 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8196
8197 return rdev_update_ft_ies(rdev, dev, &ft_params);
8198}
8199
5de17984
AS		 8200static int nl80211_crit_protocol_start(struct sk_buff *skb,
8201 struct genl_info *info)
8202{
8203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8204 struct wireless_dev *wdev = info->user_ptr[1];
8205 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8206 u16 duration;
8207 int ret;
8208
8209 if (!rdev->ops->crit_proto_start)
8210 return -EOPNOTSUPP;
8211
8212 if (WARN_ON(!rdev->ops->crit_proto_stop))
8213 return -EINVAL;
8214
8215 if (rdev->crit_proto_nlportid)
8216 return -EBUSY;
8217
8218 /* determine protocol if provided */
8219 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8220 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8221
8222 if (proto >= NUM_NL80211_CRIT_PROTO)
8223 return -EINVAL;
8224
8225 /* timeout must be provided */
8226 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8227 return -EINVAL;
8228
8229 duration =
8230 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8231
8232 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8233 return -ERANGE;
8234
8235 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8236 if (!ret)
8237 rdev->crit_proto_nlportid = info->snd_portid;
8238
8239 return ret;
8240}
8241
8242static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8243 struct genl_info *info)
8244{
8245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8246 struct wireless_dev *wdev = info->user_ptr[1];
8247
8248 if (!rdev->ops->crit_proto_stop)
8249 return -EOPNOTSUPP;
8250
8251 if (rdev->crit_proto_nlportid) {
8252 rdev->crit_proto_nlportid = 0;
8253 rdev_crit_proto_stop(rdev, wdev);
8254 }
8255 return 0;
8256}
8257
4c476991
JB		 8258#define NL80211_FLAG_NEED_WIPHY 0x01
8259#define NL80211_FLAG_NEED_NETDEV 0x02
8260#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8261#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8262#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8263 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8264#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8265/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8266#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8267 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8268
8269static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8270 struct genl_info *info)
8271{
8272 struct cfg80211_registered_device *rdev;
89a54e48 8273 struct wireless_dev *wdev;
4c476991 8274 struct net_device *dev;
4c476991
JB		 8275 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8276
8277 if (rtnl)
8278 rtnl_lock();
8279
8280 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8281 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8282 if (IS_ERR(rdev)) {
8283 if (rtnl)
8284 rtnl_unlock();
8285 return PTR_ERR(rdev);
8286 }
8287 info->user_ptr[0] = rdev;
1bf614ef
JB		 8288 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8289 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8290 ASSERT_RTNL();
8291
89a54e48
JB		 8292 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8293 info->attrs);
8294 if (IS_ERR(wdev)) {
4c476991
JB		 8295 if (rtnl)
8296 rtnl_unlock();
89a54e48 8297 return PTR_ERR(wdev);
4c476991 8298 }
89a54e48 8299
89a54e48
JB		 8300 dev = wdev->netdev;
8301 rdev = wiphy_to_dev(wdev->wiphy);
8302
1bf614ef
JB		 8303 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8304 if (!dev) {
1bf614ef
JB		 8305 if (rtnl)
8306 rtnl_unlock();
8307 return -EINVAL;
8308 }
8309
8310 info->user_ptr[1] = dev;
8311 } else {
8312 info->user_ptr[1] = wdev;
41265714 8313 }
1bf614ef
JB		 8314
8315 if (dev) {
8316 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8317 !netif_running(dev)) {
1bf614ef
JB		 8318 if (rtnl)
8319 rtnl_unlock();
8320 return -ENETDOWN;
8321 }
8322
8323 dev_hold(dev);
98104fde
JB		 8324 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8325 if (!wdev->p2p_started) {
98104fde
JB		 8326 if (rtnl)
8327 rtnl_unlock();
8328 return -ENETDOWN;
8329 }
41265714 8330 }
89a54e48 8331
4c476991 8332 info->user_ptr[0] = rdev;
4c476991
JB		 8333 }
8334
8335 return 0;
8336}
8337
8338static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8339 struct genl_info *info)
8340{
1bf614ef
JB		 8341 if (info->user_ptr[1]) {
8342 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8343 struct wireless_dev *wdev = info->user_ptr[1];
8344
8345 if (wdev->netdev)
8346 dev_put(wdev->netdev);
8347 } else {
8348 dev_put(info->user_ptr[1]);
8349 }
8350 }
4c476991
JB		 8351 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8352 rtnl_unlock();
8353}
8354
55682965
JB		 8355static struct genl_ops nl80211_ops[] = {
8356 {
8357 .cmd = NL80211_CMD_GET_WIPHY,
8358 .doit = nl80211_get_wiphy,
8359 .dumpit = nl80211_dump_wiphy,
8360 .policy = nl80211_policy,
8361 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8362 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8363 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8364 },
8365 {
8366 .cmd = NL80211_CMD_SET_WIPHY,
8367 .doit = nl80211_set_wiphy,
8368 .policy = nl80211_policy,
8369 .flags = GENL_ADMIN_PERM,
4c476991 8370 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8371 },
8372 {
8373 .cmd = NL80211_CMD_GET_INTERFACE,
8374 .doit = nl80211_get_interface,
8375 .dumpit = nl80211_dump_interface,
8376 .policy = nl80211_policy,
8377 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8378 .internal_flags = NL80211_FLAG_NEED_WDEV |
8379 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8380 },
8381 {
8382 .cmd = NL80211_CMD_SET_INTERFACE,
8383 .doit = nl80211_set_interface,
8384 .policy = nl80211_policy,
8385 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8386 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8387 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8388 },
8389 {
8390 .cmd = NL80211_CMD_NEW_INTERFACE,
8391 .doit = nl80211_new_interface,
8392 .policy = nl80211_policy,
8393 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8394 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8395 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8396 },
8397 {
8398 .cmd = NL80211_CMD_DEL_INTERFACE,
8399 .doit = nl80211_del_interface,
8400 .policy = nl80211_policy,
41ade00f 8401 .flags = GENL_ADMIN_PERM,
84efbb84 8402 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8403 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8404 },
8405 {
8406 .cmd = NL80211_CMD_GET_KEY,
8407 .doit = nl80211_get_key,
8408 .policy = nl80211_policy,
8409 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8411 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8412 },
8413 {
8414 .cmd = NL80211_CMD_SET_KEY,
8415 .doit = nl80211_set_key,
8416 .policy = nl80211_policy,
8417 .flags = GENL_ADMIN_PERM,
41265714 8418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8419 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8420 },
8421 {
8422 .cmd = NL80211_CMD_NEW_KEY,
8423 .doit = nl80211_new_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_DEL_KEY,
8431 .doit = nl80211_del_key,
8432 .policy = nl80211_policy,
55682965 8433 .flags = GENL_ADMIN_PERM,
41265714 8434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8435 NL80211_FLAG_NEED_RTNL,
55682965 8436 },
ed1b6cc7
JB		 8437 {
8438 .cmd = NL80211_CMD_SET_BEACON,
8439 .policy = nl80211_policy,
8440 .flags = GENL_ADMIN_PERM,
8860020e 8441 .doit = nl80211_set_beacon,
2b5f8b0b 8442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8443 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8444 },
8445 {
8860020e 8446 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 8447 .policy = nl80211_policy,
8448 .flags = GENL_ADMIN_PERM,
8860020e 8449 .doit = nl80211_start_ap,
2b5f8b0b 8450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8451 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 8452 },
8453 {
8860020e 8454 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 8455 .policy = nl80211_policy,
8456 .flags = GENL_ADMIN_PERM,
8860020e 8457 .doit = nl80211_stop_ap,
2b5f8b0b 8458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8459 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8460 },
5727ef1b
JB		 8461 {
8462 .cmd = NL80211_CMD_GET_STATION,
8463 .doit = nl80211_get_station,
2ec600d6 8464 .dumpit = nl80211_dump_station,
5727ef1b 8465 .policy = nl80211_policy,
4c476991
JB		 8466 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8467 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8468 },
8469 {
8470 .cmd = NL80211_CMD_SET_STATION,
8471 .doit = nl80211_set_station,
8472 .policy = nl80211_policy,
8473 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8474 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8475 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8476 },
8477 {
8478 .cmd = NL80211_CMD_NEW_STATION,
8479 .doit = nl80211_new_station,
8480 .policy = nl80211_policy,
8481 .flags = GENL_ADMIN_PERM,
41265714 8482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8483 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8484 },
8485 {
8486 .cmd = NL80211_CMD_DEL_STATION,
8487 .doit = nl80211_del_station,
8488 .policy = nl80211_policy,
2ec600d6 8489 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8490 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8491 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8492 },
8493 {
8494 .cmd = NL80211_CMD_GET_MPATH,
8495 .doit = nl80211_get_mpath,
8496 .dumpit = nl80211_dump_mpath,
8497 .policy = nl80211_policy,
8498 .flags = GENL_ADMIN_PERM,
41265714 8499 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8500 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8501 },
8502 {
8503 .cmd = NL80211_CMD_SET_MPATH,
8504 .doit = nl80211_set_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_NEW_MPATH,
8512 .doit = nl80211_new_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_DEL_MPATH,
8520 .doit = nl80211_del_mpath,
8521 .policy = nl80211_policy,
9f1ba906 8522 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8523 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8524 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8525 },
8526 {
8527 .cmd = NL80211_CMD_SET_BSS,
8528 .doit = nl80211_set_bss,
8529 .policy = nl80211_policy,
b2e1b302 8530 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8532 NL80211_FLAG_NEED_RTNL,
b2e1b302 8533 },
f130347c
LR		 8534 {
8535 .cmd = NL80211_CMD_GET_REG,
8536 .doit = nl80211_get_reg,
8537 .policy = nl80211_policy,
5fe231e8 8538 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 8539 /* can be retrieved by unprivileged users */
8540 },
b2e1b302
LR		 8541 {
8542 .cmd = NL80211_CMD_SET_REG,
8543 .doit = nl80211_set_reg,
8544 .policy = nl80211_policy,
8545 .flags = GENL_ADMIN_PERM,
5fe231e8 8546 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 8547 },
8548 {
8549 .cmd = NL80211_CMD_REQ_SET_REG,
8550 .doit = nl80211_req_set_reg,
8551 .policy = nl80211_policy,
93da9cc1 8552 .flags = GENL_ADMIN_PERM,
8553 },
8554 {
24bdd9f4
JC		 8555 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8556 .doit = nl80211_get_mesh_config,
93da9cc1 8557 .policy = nl80211_policy,
8558 /* can be retrieved by unprivileged users */
2b5f8b0b 8559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8560 NL80211_FLAG_NEED_RTNL,
93da9cc1 8561 },
8562 {
24bdd9f4
JC		 8563 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8564 .doit = nl80211_update_mesh_config,
93da9cc1 8565 .policy = nl80211_policy,
9aed3cc1 8566 .flags = GENL_ADMIN_PERM,
29cbe68c 8567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8568 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8569 },
2a519311
JB		 8570 {
8571 .cmd = NL80211_CMD_TRIGGER_SCAN,
8572 .doit = nl80211_trigger_scan,
8573 .policy = nl80211_policy,
8574 .flags = GENL_ADMIN_PERM,
fd014284 8575 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8576 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8577 },
8578 {
8579 .cmd = NL80211_CMD_GET_SCAN,
8580 .policy = nl80211_policy,
8581 .dumpit = nl80211_dump_scan,
8582 },
807f8a8c
LC		 8583 {
8584 .cmd = NL80211_CMD_START_SCHED_SCAN,
8585 .doit = nl80211_start_sched_scan,
8586 .policy = nl80211_policy,
8587 .flags = GENL_ADMIN_PERM,
8588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8589 NL80211_FLAG_NEED_RTNL,
8590 },
8591 {
8592 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8593 .doit = nl80211_stop_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 },
636a5d36
JM		 8599 {
8600 .cmd = NL80211_CMD_AUTHENTICATE,
8601 .doit = nl80211_authenticate,
8602 .policy = nl80211_policy,
8603 .flags = GENL_ADMIN_PERM,
41265714 8604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8605 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8606 },
8607 {
8608 .cmd = NL80211_CMD_ASSOCIATE,
8609 .doit = nl80211_associate,
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_DEAUTHENTICATE,
8617 .doit = nl80211_deauthenticate,
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_DISASSOCIATE,
8625 .doit = nl80211_disassociate,
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 8630 },
04a773ad
JB		 8631 {
8632 .cmd = NL80211_CMD_JOIN_IBSS,
8633 .doit = nl80211_join_ibss,
8634 .policy = nl80211_policy,
8635 .flags = GENL_ADMIN_PERM,
41265714 8636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8637 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8638 },
8639 {
8640 .cmd = NL80211_CMD_LEAVE_IBSS,
8641 .doit = nl80211_leave_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 8646 },
aff89a9b
JB		 8647#ifdef CONFIG_NL80211_TESTMODE
8648 {
8649 .cmd = NL80211_CMD_TESTMODE,
8650 .doit = nl80211_testmode_do,
71063f0e 8651 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8652 .policy = nl80211_policy,
8653 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8654 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8655 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8656 },
8657#endif
b23aa676
SO		 8658 {
8659 .cmd = NL80211_CMD_CONNECT,
8660 .doit = nl80211_connect,
8661 .policy = nl80211_policy,
8662 .flags = GENL_ADMIN_PERM,
41265714 8663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8664 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8665 },
8666 {
8667 .cmd = NL80211_CMD_DISCONNECT,
8668 .doit = nl80211_disconnect,
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 8673 },
463d0183
JB		 8674 {
8675 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8676 .doit = nl80211_wiphy_netns,
8677 .policy = nl80211_policy,
8678 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8679 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8680 NL80211_FLAG_NEED_RTNL,
463d0183 8681 },
61fa713c
HS		 8682 {
8683 .cmd = NL80211_CMD_GET_SURVEY,
8684 .policy = nl80211_policy,
8685 .dumpit = nl80211_dump_survey,
8686 },
67fbb16b
SO		 8687 {
8688 .cmd = NL80211_CMD_SET_PMKSA,
8689 .doit = nl80211_setdel_pmksa,
8690 .policy = nl80211_policy,
8691 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8692 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8693 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8694 },
8695 {
8696 .cmd = NL80211_CMD_DEL_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_FLUSH_PMKSA,
8705 .doit = nl80211_flush_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 8710 },
9588bbd5
JM		 8711 {
8712 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8713 .doit = nl80211_remain_on_channel,
8714 .policy = nl80211_policy,
8715 .flags = GENL_ADMIN_PERM,
71bbc994 8716 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8717 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8718 },
8719 {
8720 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8721 .doit = nl80211_cancel_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 8726 },
13ae75b1
JM		 8727 {
8728 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8729 .doit = nl80211_set_tx_bitrate_mask,
8730 .policy = nl80211_policy,
8731 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8732 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8733 NL80211_FLAG_NEED_RTNL,
13ae75b1 8734 },
026331c4 8735 {
2e161f78
JB		 8736 .cmd = NL80211_CMD_REGISTER_FRAME,
8737 .doit = nl80211_register_mgmt,
026331c4
JM		 8738 .policy = nl80211_policy,
8739 .flags = GENL_ADMIN_PERM,
71bbc994 8740 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8741 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8742 },
8743 {
2e161f78
JB		 8744 .cmd = NL80211_CMD_FRAME,
8745 .doit = nl80211_tx_mgmt,
026331c4 8746 .policy = nl80211_policy,
f7ca38df 8747 .flags = GENL_ADMIN_PERM,
71bbc994 8748 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8749 NL80211_FLAG_NEED_RTNL,
8750 },
8751 {
8752 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8753 .doit = nl80211_tx_mgmt_cancel_wait,
8754 .policy = nl80211_policy,
026331c4 8755 .flags = GENL_ADMIN_PERM,
71bbc994 8756 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8757 NL80211_FLAG_NEED_RTNL,
026331c4 8758 },
ffb9eb3d
KV		 8759 {
8760 .cmd = NL80211_CMD_SET_POWER_SAVE,
8761 .doit = nl80211_set_power_save,
8762 .policy = nl80211_policy,
8763 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8764 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8765 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8766 },
8767 {
8768 .cmd = NL80211_CMD_GET_POWER_SAVE,
8769 .doit = nl80211_get_power_save,
8770 .policy = nl80211_policy,
8771 /* can be retrieved by unprivileged users */
4c476991
JB		 8772 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8773 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8774 },
d6dc1a38
JO		 8775 {
8776 .cmd = NL80211_CMD_SET_CQM,
8777 .doit = nl80211_set_cqm,
8778 .policy = nl80211_policy,
8779 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8781 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8782 },
f444de05
JB		 8783 {
8784 .cmd = NL80211_CMD_SET_CHANNEL,
8785 .doit = nl80211_set_channel,
8786 .policy = nl80211_policy,
8787 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8788 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8789 NL80211_FLAG_NEED_RTNL,
f444de05 8790 },
e8347eba
BJ		 8791 {
8792 .cmd = NL80211_CMD_SET_WDS_PEER,
8793 .doit = nl80211_set_wds_peer,
8794 .policy = nl80211_policy,
8795 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8796 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8797 NL80211_FLAG_NEED_RTNL,
e8347eba 8798 },
29cbe68c
JB		 8799 {
8800 .cmd = NL80211_CMD_JOIN_MESH,
8801 .doit = nl80211_join_mesh,
8802 .policy = nl80211_policy,
8803 .flags = GENL_ADMIN_PERM,
8804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8805 NL80211_FLAG_NEED_RTNL,
8806 },
8807 {
8808 .cmd = NL80211_CMD_LEAVE_MESH,
8809 .doit = nl80211_leave_mesh,
8810 .policy = nl80211_policy,
8811 .flags = GENL_ADMIN_PERM,
8812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8813 NL80211_FLAG_NEED_RTNL,
8814 },
dfb89c56 8815#ifdef CONFIG_PM
ff1b6e69
JB		 8816 {
8817 .cmd = NL80211_CMD_GET_WOWLAN,
8818 .doit = nl80211_get_wowlan,
8819 .policy = nl80211_policy,
8820 /* can be retrieved by unprivileged users */
8821 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8822 NL80211_FLAG_NEED_RTNL,
8823 },
8824 {
8825 .cmd = NL80211_CMD_SET_WOWLAN,
8826 .doit = nl80211_set_wowlan,
8827 .policy = nl80211_policy,
8828 .flags = GENL_ADMIN_PERM,
8829 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8830 NL80211_FLAG_NEED_RTNL,
8831 },
dfb89c56 8832#endif
e5497d76
JB		 8833 {
8834 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8835 .doit = nl80211_set_rekey_data,
8836 .policy = nl80211_policy,
8837 .flags = GENL_ADMIN_PERM,
8838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8839 NL80211_FLAG_NEED_RTNL,
8840 },
109086ce
AN		 8841 {
8842 .cmd = NL80211_CMD_TDLS_MGMT,
8843 .doit = nl80211_tdls_mgmt,
8844 .policy = nl80211_policy,
8845 .flags = GENL_ADMIN_PERM,
8846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8847 NL80211_FLAG_NEED_RTNL,
8848 },
8849 {
8850 .cmd = NL80211_CMD_TDLS_OPER,
8851 .doit = nl80211_tdls_oper,
8852 .policy = nl80211_policy,
8853 .flags = GENL_ADMIN_PERM,
8854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8855 NL80211_FLAG_NEED_RTNL,
8856 },
28946da7
JB		 8857 {
8858 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8859 .doit = nl80211_register_unexpected_frame,
8860 .policy = nl80211_policy,
8861 .flags = GENL_ADMIN_PERM,
8862 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8863 NL80211_FLAG_NEED_RTNL,
8864 },
7f6cf311
JB		 8865 {
8866 .cmd = NL80211_CMD_PROBE_CLIENT,
8867 .doit = nl80211_probe_client,
8868 .policy = nl80211_policy,
8869 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8871 NL80211_FLAG_NEED_RTNL,
8872 },
5e760230
JB		 8873 {
8874 .cmd = NL80211_CMD_REGISTER_BEACONS,
8875 .doit = nl80211_register_beacons,
8876 .policy = nl80211_policy,
8877 .flags = GENL_ADMIN_PERM,
8878 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8879 NL80211_FLAG_NEED_RTNL,
8880 },
1d9d9213
SW		 8881 {
8882 .cmd = NL80211_CMD_SET_NOACK_MAP,
8883 .doit = nl80211_set_noack_map,
8884 .policy = nl80211_policy,
8885 .flags = GENL_ADMIN_PERM,
8886 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8887 NL80211_FLAG_NEED_RTNL,
8888 },
98104fde
JB		 8889 {
8890 .cmd = NL80211_CMD_START_P2P_DEVICE,
8891 .doit = nl80211_start_p2p_device,
8892 .policy = nl80211_policy,
8893 .flags = GENL_ADMIN_PERM,
8894 .internal_flags = NL80211_FLAG_NEED_WDEV |
8895 NL80211_FLAG_NEED_RTNL,
8896 },
8897 {
8898 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8899 .doit = nl80211_stop_p2p_device,
8900 .policy = nl80211_policy,
8901 .flags = GENL_ADMIN_PERM,
8902 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8903 NL80211_FLAG_NEED_RTNL,
8904 },
f4e583c8
AQ		 8905 {
8906 .cmd = NL80211_CMD_SET_MCAST_RATE,
8907 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8908 .policy = nl80211_policy,
8909 .flags = GENL_ADMIN_PERM,
8910 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8911 NL80211_FLAG_NEED_RTNL,
8912 },
8913 {
8914 .cmd = NL80211_CMD_SET_MAC_ACL,
8915 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8916 .policy = nl80211_policy,
8917 .flags = GENL_ADMIN_PERM,
8918 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8919 NL80211_FLAG_NEED_RTNL,
8920 },
04f39047
SW		 8921 {
8922 .cmd = NL80211_CMD_RADAR_DETECT,
8923 .doit = nl80211_start_radar_detection,
8924 .policy = nl80211_policy,
8925 .flags = GENL_ADMIN_PERM,
8926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8927 NL80211_FLAG_NEED_RTNL,
8928 },
3713b4e3
JB		 8929 {
8930 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8931 .doit = nl80211_get_protocol_features,
8932 .policy = nl80211_policy,
8933 },
355199e0
JM		 8934 {
8935 .cmd = NL80211_CMD_UPDATE_FT_IES,
8936 .doit = nl80211_update_ft_ies,
8937 .policy = nl80211_policy,
8938 .flags = GENL_ADMIN_PERM,
8939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8940 NL80211_FLAG_NEED_RTNL,
8941 },
5de17984
AS		 8942 {
8943 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8944 .doit = nl80211_crit_protocol_start,
8945 .policy = nl80211_policy,
8946 .flags = GENL_ADMIN_PERM,
8947 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8948 NL80211_FLAG_NEED_RTNL,
8949 },
8950 {
8951 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8952 .doit = nl80211_crit_protocol_stop,
8953 .policy = nl80211_policy,
8954 .flags = GENL_ADMIN_PERM,
8955 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8956 NL80211_FLAG_NEED_RTNL,
8957 }
55682965 8958};
9588bbd5 8959
6039f6d2
JM		 8960static struct genl_multicast_group nl80211_mlme_mcgrp = {
8961 .name = "mlme",
8962};
55682965
JB		 8963
8964/* multicast groups */
8965static struct genl_multicast_group nl80211_config_mcgrp = {
8966 .name = "config",
8967};
2a519311
JB		 8968static struct genl_multicast_group nl80211_scan_mcgrp = {
8969 .name = "scan",
8970};
73d54c9e
LR		 8971static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8972 .name = "regulatory",
8973};
55682965
JB		 8974
8975/* notification functions */
8976
8977void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8978{
8979 struct sk_buff *msg;
8980
fd2120ca 8981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8982 if (!msg)
8983 return;
8984
3713b4e3
JB		 8985 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
8986 false, NULL, NULL, NULL) < 0) {
55682965
JB		 8987 nlmsg_free(msg);
8988 return;
8989 }
8990
463d0183
JB		 8991 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8992 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8993}
8994
362a415d
JB		 8995static int nl80211_add_scan_req(struct sk_buff *msg,
8996 struct cfg80211_registered_device *rdev)
8997{
8998 struct cfg80211_scan_request *req = rdev->scan_req;
8999 struct nlattr *nest;
9000 int i;
9001
9002 if (WARN_ON(!req))
9003 return 0;
9004
9005 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9006 if (!nest)
9007 goto nla_put_failure;
9360ffd1
DM		 9008 for (i = 0; i < req->n_ssids; i++) {
9009 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9010 goto nla_put_failure;
9011 }
362a415d
JB		 9012 nla_nest_end(msg, nest);
9013
9014 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9015 if (!nest)
9016 goto nla_put_failure;
9360ffd1
DM		 9017 for (i = 0; i < req->n_channels; i++) {
9018 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9019 goto nla_put_failure;
9020 }
362a415d
JB		 9021 nla_nest_end(msg, nest);
9022
9360ffd1
DM		 9023 if (req->ie &&
9024 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9025 goto nla_put_failure;
362a415d 9026
ed473771
SL		 9027 if (req->flags)
9028 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9029
362a415d
JB		 9030 return 0;
9031 nla_put_failure:
9032 return -ENOBUFS;
9033}
9034
a538e2d5
JB		 9035static int nl80211_send_scan_msg(struct sk_buff *msg,
9036 struct cfg80211_registered_device *rdev,
fd014284 9037 struct wireless_dev *wdev,
15e47304 9038 u32 portid, u32 seq, int flags,
a538e2d5 9039 u32 cmd)
2a519311
JB		 9040{
9041 void *hdr;
9042
15e47304 9043 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9044 if (!hdr)
9045 return -1;
9046
9360ffd1 9047 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9048 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9049 wdev->netdev->ifindex)) ||
9050 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9051 goto nla_put_failure;
2a519311 9052
362a415d
JB		 9053 /* ignore errors and send incomplete event anyway */
9054 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9055
9056 return genlmsg_end(msg, hdr);
9057
9058 nla_put_failure:
9059 genlmsg_cancel(msg, hdr);
9060 return -EMSGSIZE;
9061}
9062
807f8a8c
LC		 9063static int
9064nl80211_send_sched_scan_msg(struct sk_buff *msg,
9065 struct cfg80211_registered_device *rdev,
9066 struct net_device *netdev,
15e47304 9067 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9068{
9069 void *hdr;
9070
15e47304 9071 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9072 if (!hdr)
9073 return -1;
9074
9360ffd1
DM		 9075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9077 goto nla_put_failure;
807f8a8c
LC		 9078
9079 return genlmsg_end(msg, hdr);
9080
9081 nla_put_failure:
9082 genlmsg_cancel(msg, hdr);
9083 return -EMSGSIZE;
9084}
9085
a538e2d5 9086void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9087 struct wireless_dev *wdev)
a538e2d5
JB		 9088{
9089 struct sk_buff *msg;
9090
58050fce 9091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9092 if (!msg)
9093 return;
9094
fd014284 9095 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9096 NL80211_CMD_TRIGGER_SCAN) < 0) {
9097 nlmsg_free(msg);
9098 return;
9099 }
9100
463d0183
JB		 9101 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9102 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9103}
9104
2a519311 9105void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9106 struct wireless_dev *wdev)
2a519311
JB		 9107{
9108 struct sk_buff *msg;
9109
fd2120ca 9110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9111 if (!msg)
9112 return;
9113
fd014284 9114 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9115 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9116 nlmsg_free(msg);
9117 return;
9118 }
9119
463d0183
JB		 9120 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9121 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9122}
9123
9124void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9125 struct wireless_dev *wdev)
2a519311
JB		 9126{
9127 struct sk_buff *msg;
9128
fd2120ca 9129 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9130 if (!msg)
9131 return;
9132
fd014284 9133 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9134 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9135 nlmsg_free(msg);
9136 return;
9137 }
9138
463d0183
JB		 9139 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9140 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9141}
9142
807f8a8c
LC		 9143void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9144 struct net_device *netdev)
9145{
9146 struct sk_buff *msg;
9147
9148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9149 if (!msg)
9150 return;
9151
9152 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9153 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9154 nlmsg_free(msg);
9155 return;
9156 }
9157
9158 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9159 nl80211_scan_mcgrp.id, GFP_KERNEL);
9160}
9161
9162void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9163 struct net_device *netdev, u32 cmd)
9164{
9165 struct sk_buff *msg;
9166
58050fce 9167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9168 if (!msg)
9169 return;
9170
9171 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9172 nlmsg_free(msg);
9173 return;
9174 }
9175
9176 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9177 nl80211_scan_mcgrp.id, GFP_KERNEL);
9178}
9179
73d54c9e
LR		 9180/*
9181 * This can happen on global regulatory changes or device specific settings
9182 * based on custom world regulatory domains.
9183 */
9184void nl80211_send_reg_change_event(struct regulatory_request *request)
9185{
9186 struct sk_buff *msg;
9187 void *hdr;
9188
fd2120ca 9189 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9190 if (!msg)
9191 return;
9192
9193 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9194 if (!hdr) {
9195 nlmsg_free(msg);
9196 return;
9197 }
9198
9199 /* Userspace can always count this one always being set */
9360ffd1
DM		 9200 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9201 goto nla_put_failure;
9202
9203 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9204 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9205 NL80211_REGDOM_TYPE_WORLD))
9206 goto nla_put_failure;
9207 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9208 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9209 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9210 goto nla_put_failure;
9211 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9212 request->intersect) {
9213 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9214 NL80211_REGDOM_TYPE_INTERSECTION))
9215 goto nla_put_failure;
9216 } else {
9217 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9218 NL80211_REGDOM_TYPE_COUNTRY) ||
9219 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9220 request->alpha2))
9221 goto nla_put_failure;
9222 }
9223
f4173766 9224 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9225 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9226 goto nla_put_failure;
73d54c9e 9227
3b7b72ee 9228 genlmsg_end(msg, hdr);
73d54c9e 9229
bc43b28c 9230 rcu_read_lock();
463d0183 9231 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9232 GFP_ATOMIC);
9233 rcu_read_unlock();
73d54c9e
LR		 9234
9235 return;
9236
9237nla_put_failure:
9238 genlmsg_cancel(msg, hdr);
9239 nlmsg_free(msg);
9240}
9241
6039f6d2
JM		 9242static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9243 struct net_device *netdev,
9244 const u8 *buf, size_t len,
e6d6e342 9245 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9246{
9247 struct sk_buff *msg;
9248 void *hdr;
9249
e6d6e342 9250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9251 if (!msg)
9252 return;
9253
9254 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9255 if (!hdr) {
9256 nlmsg_free(msg);
9257 return;
9258 }
9259
9360ffd1
DM		 9260 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9261 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9262 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9263 goto nla_put_failure;
6039f6d2 9264
3b7b72ee 9265 genlmsg_end(msg, hdr);
6039f6d2 9266
463d0183
JB		 9267 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9268 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9269 return;
9270
9271 nla_put_failure:
9272 genlmsg_cancel(msg, hdr);
9273 nlmsg_free(msg);
9274}
9275
9276void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9277 struct net_device *netdev, const u8 *buf,
9278 size_t len, gfp_t gfp)
6039f6d2
JM		 9279{
9280 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9281 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9282}
9283
9284void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9285 struct net_device *netdev, const u8 *buf,
e6d6e342 9286 size_t len, gfp_t gfp)
6039f6d2 9287{
e6d6e342
JB		 9288 nl80211_send_mlme_event(rdev, netdev, buf, len,
9289 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9290}
9291
53b46b84 9292void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9293 struct net_device *netdev, const u8 *buf,
9294 size_t len, gfp_t gfp)
6039f6d2
JM		 9295{
9296 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9297 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9298}
9299
53b46b84
JM		 9300void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9301 struct net_device *netdev, const u8 *buf,
e6d6e342 9302 size_t len, gfp_t gfp)
6039f6d2
JM		 9303{
9304 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9305 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9306}
9307
947add36
JB		 9308void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9309 size_t len)
cf4e594e 9310{
947add36
JB		 9311 struct wireless_dev *wdev = dev->ieee80211_ptr;
9312 struct wiphy *wiphy = wdev->wiphy;
9313 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9314
9315 trace_cfg80211_send_unprot_deauth(dev);
9316 nl80211_send_mlme_event(rdev, dev, buf, len,
9317 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
cf4e594e 9318}
947add36 9319EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
cf4e594e 9320
947add36
JB		 9321void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9322 size_t len)
cf4e594e 9323{
947add36
JB		 9324 struct wireless_dev *wdev = dev->ieee80211_ptr;
9325 struct wiphy *wiphy = wdev->wiphy;
9326 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9327
9328 trace_cfg80211_send_unprot_disassoc(dev);
9329 nl80211_send_mlme_event(rdev, dev, buf, len,
9330 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
cf4e594e 9331}
947add36 9332EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
cf4e594e 9333
1b06bb40
LR		 9334static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9335 struct net_device *netdev, int cmd,
e6d6e342 9336 const u8 *addr, gfp_t gfp)
1965c853
JM		 9337{
9338 struct sk_buff *msg;
9339 void *hdr;
9340
e6d6e342 9341 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9342 if (!msg)
9343 return;
9344
9345 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9346 if (!hdr) {
9347 nlmsg_free(msg);
9348 return;
9349 }
9350
9360ffd1
DM		 9351 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9352 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9353 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9354 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9355 goto nla_put_failure;
1965c853 9356
3b7b72ee 9357 genlmsg_end(msg, hdr);
1965c853 9358
463d0183
JB		 9359 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9360 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9361 return;
9362
9363 nla_put_failure:
9364 genlmsg_cancel(msg, hdr);
9365 nlmsg_free(msg);
9366}
9367
9368void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9369 struct net_device *netdev, const u8 *addr,
9370 gfp_t gfp)
1965c853
JM		 9371{
9372 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9373 addr, gfp);
1965c853
JM		 9374}
9375
9376void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9377 struct net_device *netdev, const u8 *addr,
9378 gfp_t gfp)
1965c853 9379{
e6d6e342
JB		 9380 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9381 addr, gfp);
1965c853
JM		 9382}
9383
b23aa676
SO		 9384void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9385 struct net_device *netdev, const u8 *bssid,
9386 const u8 *req_ie, size_t req_ie_len,
9387 const u8 *resp_ie, size_t resp_ie_len,
9388 u16 status, gfp_t gfp)
9389{
9390 struct sk_buff *msg;
9391 void *hdr;
9392
58050fce 9393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9394 if (!msg)
9395 return;
9396
9397 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9398 if (!hdr) {
9399 nlmsg_free(msg);
9400 return;
9401 }
9402
9360ffd1
DM		 9403 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9404 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9405 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9406 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9407 (req_ie &&
9408 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9409 (resp_ie &&
9410 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9411 goto nla_put_failure;
b23aa676 9412
3b7b72ee 9413 genlmsg_end(msg, hdr);
b23aa676 9414
463d0183
JB		 9415 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9416 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9417 return;
9418
9419 nla_put_failure:
9420 genlmsg_cancel(msg, hdr);
9421 nlmsg_free(msg);
9422
9423}
9424
9425void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9426 struct net_device *netdev, const u8 *bssid,
9427 const u8 *req_ie, size_t req_ie_len,
9428 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9429{
9430 struct sk_buff *msg;
9431 void *hdr;
9432
58050fce 9433 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9434 if (!msg)
9435 return;
9436
9437 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9438 if (!hdr) {
9439 nlmsg_free(msg);
9440 return;
9441 }
9442
9360ffd1
DM		 9443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9444 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9445 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9446 (req_ie &&
9447 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9448 (resp_ie &&
9449 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9450 goto nla_put_failure;
b23aa676 9451
3b7b72ee 9452 genlmsg_end(msg, hdr);
b23aa676 9453
463d0183
JB		 9454 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9455 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 9456 return;
9457
9458 nla_put_failure:
9459 genlmsg_cancel(msg, hdr);
9460 nlmsg_free(msg);
9461
9462}
9463
9464void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9465 struct net_device *netdev, u16 reason,
667503dd 9466 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 9467{
9468 struct sk_buff *msg;
9469 void *hdr;
9470
58050fce 9471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 9472 if (!msg)
9473 return;
9474
9475 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9476 if (!hdr) {
9477 nlmsg_free(msg);
9478 return;
9479 }
9480
9360ffd1
DM		 9481 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9482 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9483 (from_ap && reason &&
9484 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9485 (from_ap &&
9486 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9487 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9488 goto nla_put_failure;
b23aa676 9489
3b7b72ee 9490 genlmsg_end(msg, hdr);
b23aa676 9491
463d0183
JB		 9492 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9493 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 9494 return;
9495
9496 nla_put_failure:
9497 genlmsg_cancel(msg, hdr);
9498 nlmsg_free(msg);
9499
9500}
9501
04a773ad
JB		 9502void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9503 struct net_device *netdev, const u8 *bssid,
9504 gfp_t gfp)
9505{
9506 struct sk_buff *msg;
9507 void *hdr;
9508
fd2120ca 9509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9510 if (!msg)
9511 return;
9512
9513 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9514 if (!hdr) {
9515 nlmsg_free(msg);
9516 return;
9517 }
9518
9360ffd1
DM		 9519 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9520 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9521 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9522 goto nla_put_failure;
04a773ad 9523
3b7b72ee 9524 genlmsg_end(msg, hdr);
04a773ad 9525
463d0183
JB		 9526 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9527 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9528 return;
9529
9530 nla_put_failure:
9531 genlmsg_cancel(msg, hdr);
9532 nlmsg_free(msg);
9533}
9534
947add36
JB		 9535void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9536 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 9537{
947add36
JB		 9538 struct wireless_dev *wdev = dev->ieee80211_ptr;
9539 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 9540 struct sk_buff *msg;
9541 void *hdr;
9542
947add36
JB		 9543 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9544 return;
9545
9546 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9547
c93b5e71
JC		 9548 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9549 if (!msg)
9550 return;
9551
9552 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9553 if (!hdr) {
9554 nlmsg_free(msg);
9555 return;
9556 }
9557
9360ffd1 9558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 9559 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9560 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 9561 (ie_len && ie &&
9562 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9563 goto nla_put_failure;
c93b5e71 9564
3b7b72ee 9565 genlmsg_end(msg, hdr);
c93b5e71
JC		 9566
9567 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9568 nl80211_mlme_mcgrp.id, gfp);
9569 return;
9570
9571 nla_put_failure:
9572 genlmsg_cancel(msg, hdr);
9573 nlmsg_free(msg);
9574}
947add36 9575EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 9576
a3b8b056
JM		 9577void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9578 struct net_device *netdev, const u8 *addr,
9579 enum nl80211_key_type key_type, int key_id,
e6d6e342 9580 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9581{
9582 struct sk_buff *msg;
9583 void *hdr;
9584
e6d6e342 9585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9586 if (!msg)
9587 return;
9588
9589 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9590 if (!hdr) {
9591 nlmsg_free(msg);
9592 return;
9593 }
9594
9360ffd1
DM		 9595 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9596 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9597 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9598 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9599 (key_id != -1 &&
9600 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9601 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9602 goto nla_put_failure;
a3b8b056 9603
3b7b72ee 9604 genlmsg_end(msg, hdr);
a3b8b056 9605
463d0183
JB		 9606 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9607 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9608 return;
9609
9610 nla_put_failure:
9611 genlmsg_cancel(msg, hdr);
9612 nlmsg_free(msg);
9613}
9614
6bad8766
LR		 9615void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9616 struct ieee80211_channel *channel_before,
9617 struct ieee80211_channel *channel_after)
9618{
9619 struct sk_buff *msg;
9620 void *hdr;
9621 struct nlattr *nl_freq;
9622
fd2120ca 9623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9624 if (!msg)
9625 return;
9626
9627 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9628 if (!hdr) {
9629 nlmsg_free(msg);
9630 return;
9631 }
9632
9633 /*
9634 * Since we are applying the beacon hint to a wiphy we know its
9635 * wiphy_idx is valid
9636 */
9360ffd1
DM		 9637 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9638 goto nla_put_failure;
6bad8766
LR		 9639
9640 /* Before */
9641 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9642 if (!nl_freq)
9643 goto nla_put_failure;
cdc89b97 9644 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 9645 goto nla_put_failure;
9646 nla_nest_end(msg, nl_freq);
9647
9648 /* After */
9649 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9650 if (!nl_freq)
9651 goto nla_put_failure;
cdc89b97 9652 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 9653 goto nla_put_failure;
9654 nla_nest_end(msg, nl_freq);
9655
3b7b72ee 9656 genlmsg_end(msg, hdr);
6bad8766 9657
463d0183
JB		 9658 rcu_read_lock();
9659 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9660 GFP_ATOMIC);
9661 rcu_read_unlock();
6bad8766
LR		 9662
9663 return;
9664
9665nla_put_failure:
9666 genlmsg_cancel(msg, hdr);
9667 nlmsg_free(msg);
9668}
9669
9588bbd5
JM		 9670static void nl80211_send_remain_on_chan_event(
9671 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9672 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9673 struct ieee80211_channel *chan,
9588bbd5
JM		 9674 unsigned int duration, gfp_t gfp)
9675{
9676 struct sk_buff *msg;
9677 void *hdr;
9678
9679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9680 if (!msg)
9681 return;
9682
9683 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9684 if (!hdr) {
9685 nlmsg_free(msg);
9686 return;
9687 }
9688
9360ffd1 9689 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9690 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9691 wdev->netdev->ifindex)) ||
00f53350 9692 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9693 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9694 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9695 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9696 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9697 goto nla_put_failure;
9588bbd5 9698
9360ffd1
DM		 9699 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9700 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9701 goto nla_put_failure;
9588bbd5 9702
3b7b72ee 9703 genlmsg_end(msg, hdr);
9588bbd5
JM		 9704
9705 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9706 nl80211_mlme_mcgrp.id, gfp);
9707 return;
9708
9709 nla_put_failure:
9710 genlmsg_cancel(msg, hdr);
9711 nlmsg_free(msg);
9712}
9713
947add36
JB		 9714void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9715 struct ieee80211_channel *chan,
9716 unsigned int duration, gfp_t gfp)
9588bbd5 9717{
947add36
JB		 9718 struct wiphy *wiphy = wdev->wiphy;
9719 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9720
9721 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 9722 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9723 rdev, wdev, cookie, chan,
42d97a59 9724 duration, gfp);
9588bbd5 9725}
947add36 9726EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 9727
947add36
JB		 9728void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9729 struct ieee80211_channel *chan,
9730 gfp_t gfp)
9588bbd5 9731{
947add36
JB		 9732 struct wiphy *wiphy = wdev->wiphy;
9733 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9734
9735 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 9736 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9737 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 9738}
947add36 9739EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 9740
947add36
JB		 9741void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9742 struct station_info *sinfo, gfp_t gfp)
98b62183 9743{
947add36
JB		 9744 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9745 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 9746 struct sk_buff *msg;
9747
947add36
JB		 9748 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9749
58050fce 9750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9751 if (!msg)
9752 return;
9753
66266b3a
JL		 9754 if (nl80211_send_station(msg, 0, 0, 0,
9755 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9756 nlmsg_free(msg);
9757 return;
9758 }
9759
9760 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9761 nl80211_mlme_mcgrp.id, gfp);
9762}
947add36 9763EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 9764
947add36 9765void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 9766{
947add36
JB		 9767 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9768 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 9769 struct sk_buff *msg;
9770 void *hdr;
9771
947add36
JB		 9772 trace_cfg80211_del_sta(dev, mac_addr);
9773
58050fce 9774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9775 if (!msg)
9776 return;
9777
9778 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9779 if (!hdr) {
9780 nlmsg_free(msg);
9781 return;
9782 }
9783
9360ffd1
DM		 9784 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9785 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9786 goto nla_put_failure;
ec15e68b 9787
3b7b72ee 9788 genlmsg_end(msg, hdr);
ec15e68b
JM		 9789
9790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9791 nl80211_mlme_mcgrp.id, gfp);
9792 return;
9793
9794 nla_put_failure:
9795 genlmsg_cancel(msg, hdr);
9796 nlmsg_free(msg);
9797}
947add36 9798EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 9799
947add36
JB		 9800void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9801 enum nl80211_connect_failed_reason reason,
9802 gfp_t gfp)
ed44a951 9803{
947add36
JB		 9804 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9805 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 9806 struct sk_buff *msg;
9807 void *hdr;
9808
9809 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9810 if (!msg)
9811 return;
9812
9813 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9814 if (!hdr) {
9815 nlmsg_free(msg);
9816 return;
9817 }
9818
9819 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9820 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9821 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9822 goto nla_put_failure;
9823
9824 genlmsg_end(msg, hdr);
9825
9826 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9827 nl80211_mlme_mcgrp.id, gfp);
9828 return;
9829
9830 nla_put_failure:
9831 genlmsg_cancel(msg, hdr);
9832 nlmsg_free(msg);
9833}
947add36 9834EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 9835
b92ab5d8
JB		 9836static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9837 const u8 *addr, gfp_t gfp)
28946da7
JB		 9838{
9839 struct wireless_dev *wdev = dev->ieee80211_ptr;
9840 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9841 struct sk_buff *msg;
9842 void *hdr;
9843 int err;
15e47304 9844 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9845
15e47304 9846 if (!nlportid)
28946da7
JB		 9847 return false;
9848
9849 msg = nlmsg_new(100, gfp);
9850 if (!msg)
9851 return true;
9852
b92ab5d8 9853 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9854 if (!hdr) {
9855 nlmsg_free(msg);
9856 return true;
9857 }
9858
9360ffd1
DM		 9859 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9860 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9862 goto nla_put_failure;
28946da7
JB		 9863
9864 err = genlmsg_end(msg, hdr);
9865 if (err < 0) {
9866 nlmsg_free(msg);
9867 return true;
9868 }
9869
15e47304 9870 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9871 return true;
9872
9873 nla_put_failure:
9874 genlmsg_cancel(msg, hdr);
9875 nlmsg_free(msg);
9876 return true;
9877}
9878
947add36
JB		 9879bool cfg80211_rx_spurious_frame(struct net_device *dev,
9880 const u8 *addr, gfp_t gfp)
b92ab5d8 9881{
947add36
JB		 9882 struct wireless_dev *wdev = dev->ieee80211_ptr;
9883 bool ret;
9884
9885 trace_cfg80211_rx_spurious_frame(dev, addr);
9886
9887 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9888 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9889 trace_cfg80211_return_bool(false);
9890 return false;
9891 }
9892 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9893 addr, gfp);
9894 trace_cfg80211_return_bool(ret);
9895 return ret;
b92ab5d8 9896}
947add36 9897EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 9898
947add36
JB		 9899bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9900 const u8 *addr, gfp_t gfp)
b92ab5d8 9901{
947add36
JB		 9902 struct wireless_dev *wdev = dev->ieee80211_ptr;
9903 bool ret;
9904
9905 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9906
9907 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9908 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9909 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9910 trace_cfg80211_return_bool(false);
9911 return false;
9912 }
9913 ret = __nl80211_unexpected_frame(dev,
9914 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9915 addr, gfp);
9916 trace_cfg80211_return_bool(ret);
9917 return ret;
b92ab5d8 9918}
947add36 9919EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 9920
2e161f78 9921int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9922 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9923 int freq, int sig_dbm,
9924 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9925{
71bbc994 9926 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9927 struct sk_buff *msg;
9928 void *hdr;
026331c4
JM		 9929
9930 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9931 if (!msg)
9932 return -ENOMEM;
9933
2e161f78 9934 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9935 if (!hdr) {
9936 nlmsg_free(msg);
9937 return -ENOMEM;
9938 }
9939
9360ffd1 9940 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9941 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9942 netdev->ifindex)) ||
a838490b 9943 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9944 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9945 (sig_dbm &&
9946 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9947 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9948 goto nla_put_failure;
026331c4 9949
3b7b72ee 9950 genlmsg_end(msg, hdr);
026331c4 9951
15e47304 9952 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9953
9954 nla_put_failure:
9955 genlmsg_cancel(msg, hdr);
9956 nlmsg_free(msg);
9957 return -ENOBUFS;
9958}
9959
947add36
JB		 9960void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9961 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 9962{
947add36
JB		 9963 struct wiphy *wiphy = wdev->wiphy;
9964 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 9965 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9966 struct sk_buff *msg;
9967 void *hdr;
9968
947add36
JB		 9969 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
9970
026331c4
JM		 9971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9972 if (!msg)
9973 return;
9974
2e161f78 9975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9976 if (!hdr) {
9977 nlmsg_free(msg);
9978 return;
9979 }
9980
9360ffd1 9981 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9982 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9983 netdev->ifindex)) ||
a838490b 9984 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 9985 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9986 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9987 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9988 goto nla_put_failure;
026331c4 9989
3b7b72ee 9990 genlmsg_end(msg, hdr);
026331c4
JM		 9991
9992 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9993 return;
9994
9995 nla_put_failure:
9996 genlmsg_cancel(msg, hdr);
9997 nlmsg_free(msg);
9998}
947add36 9999EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10000
947add36
JB		 10001void cfg80211_cqm_rssi_notify(struct net_device *dev,
10002 enum nl80211_cqm_rssi_threshold_event rssi_event,
10003 gfp_t gfp)
d6dc1a38 10004{
947add36
JB		 10005 struct wireless_dev *wdev = dev->ieee80211_ptr;
10006 struct wiphy *wiphy = wdev->wiphy;
10007 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10008 struct sk_buff *msg;
10009 struct nlattr *pinfoattr;
10010 void *hdr;
10011
947add36
JB		 10012 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10013
58050fce 10014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10015 if (!msg)
10016 return;
10017
10018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10019 if (!hdr) {
10020 nlmsg_free(msg);
10021 return;
10022 }
10023
9360ffd1 10024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10025 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10026 goto nla_put_failure;
d6dc1a38
JO		 10027
10028 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10029 if (!pinfoattr)
10030 goto nla_put_failure;
10031
9360ffd1
DM		 10032 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10033 rssi_event))
10034 goto nla_put_failure;
d6dc1a38
JO		 10035
10036 nla_nest_end(msg, pinfoattr);
10037
3b7b72ee 10038 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10039
10040 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10041 nl80211_mlme_mcgrp.id, gfp);
10042 return;
10043
10044 nla_put_failure:
10045 genlmsg_cancel(msg, hdr);
10046 nlmsg_free(msg);
10047}
947add36 10048EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10049
947add36
JB		 10050static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10051 struct net_device *netdev, const u8 *bssid,
10052 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10053{
10054 struct sk_buff *msg;
10055 struct nlattr *rekey_attr;
10056 void *hdr;
10057
58050fce 10058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10059 if (!msg)
10060 return;
10061
10062 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10063 if (!hdr) {
10064 nlmsg_free(msg);
10065 return;
10066 }
10067
9360ffd1
DM		 10068 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10069 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10070 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10071 goto nla_put_failure;
e5497d76
JB		 10072
10073 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10074 if (!rekey_attr)
10075 goto nla_put_failure;
10076
9360ffd1
DM		 10077 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10078 NL80211_REPLAY_CTR_LEN, replay_ctr))
10079 goto nla_put_failure;
e5497d76
JB		 10080
10081 nla_nest_end(msg, rekey_attr);
10082
3b7b72ee 10083 genlmsg_end(msg, hdr);
e5497d76
JB		 10084
10085 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10086 nl80211_mlme_mcgrp.id, gfp);
10087 return;
10088
10089 nla_put_failure:
10090 genlmsg_cancel(msg, hdr);
10091 nlmsg_free(msg);
10092}
10093
947add36
JB		 10094void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10095 const u8 *replay_ctr, gfp_t gfp)
10096{
10097 struct wireless_dev *wdev = dev->ieee80211_ptr;
10098 struct wiphy *wiphy = wdev->wiphy;
10099 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10100
10101 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10102 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10103}
10104EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10105
10106static void
10107nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10108 struct net_device *netdev, int index,
10109 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10110{
10111 struct sk_buff *msg;
10112 struct nlattr *attr;
10113 void *hdr;
10114
58050fce 10115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10116 if (!msg)
10117 return;
10118
10119 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10120 if (!hdr) {
10121 nlmsg_free(msg);
10122 return;
10123 }
10124
9360ffd1
DM		 10125 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10126 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10127 goto nla_put_failure;
c9df56b4
JM		 10128
10129 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10130 if (!attr)
10131 goto nla_put_failure;
10132
9360ffd1
DM		 10133 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10134 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10135 (preauth &&
10136 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10137 goto nla_put_failure;
c9df56b4
JM		 10138
10139 nla_nest_end(msg, attr);
10140
3b7b72ee 10141 genlmsg_end(msg, hdr);
c9df56b4
JM		 10142
10143 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10144 nl80211_mlme_mcgrp.id, gfp);
10145 return;
10146
10147 nla_put_failure:
10148 genlmsg_cancel(msg, hdr);
10149 nlmsg_free(msg);
10150}
10151
947add36
JB		 10152void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10153 const u8 *bssid, bool preauth, gfp_t gfp)
10154{
10155 struct wireless_dev *wdev = dev->ieee80211_ptr;
10156 struct wiphy *wiphy = wdev->wiphy;
10157 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10158
10159 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10160 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10161}
10162EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10163
10164static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10165 struct net_device *netdev,
10166 struct cfg80211_chan_def *chandef,
10167 gfp_t gfp)
5314526b
TP		 10168{
10169 struct sk_buff *msg;
10170 void *hdr;
10171
58050fce 10172 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10173 if (!msg)
10174 return;
10175
10176 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10177 if (!hdr) {
10178 nlmsg_free(msg);
10179 return;
10180 }
10181
683b6d3b
JB		 10182 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10183 goto nla_put_failure;
10184
10185 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10186 goto nla_put_failure;
5314526b
TP		 10187
10188 genlmsg_end(msg, hdr);
10189
10190 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10191 nl80211_mlme_mcgrp.id, gfp);
10192 return;
10193
10194 nla_put_failure:
10195 genlmsg_cancel(msg, hdr);
10196 nlmsg_free(msg);
10197}
10198
947add36
JB		 10199void cfg80211_ch_switch_notify(struct net_device *dev,
10200 struct cfg80211_chan_def *chandef)
84f10708 10201{
947add36
JB		 10202 struct wireless_dev *wdev = dev->ieee80211_ptr;
10203 struct wiphy *wiphy = wdev->wiphy;
10204 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10205
10206 trace_cfg80211_ch_switch_notify(dev, chandef);
10207
10208 wdev_lock(wdev);
10209
10210 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10211 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10212 goto out;
10213
10214 wdev->channel = chandef->chan;
10215 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10216out:
10217 wdev_unlock(wdev);
10218 return;
10219}
10220EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10221
10222void cfg80211_cqm_txe_notify(struct net_device *dev,
10223 const u8 *peer, u32 num_packets,
10224 u32 rate, u32 intvl, gfp_t gfp)
10225{
10226 struct wireless_dev *wdev = dev->ieee80211_ptr;
10227 struct wiphy *wiphy = wdev->wiphy;
10228 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10229 struct sk_buff *msg;
10230 struct nlattr *pinfoattr;
10231 void *hdr;
10232
10233 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10234 if (!msg)
10235 return;
10236
10237 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10238 if (!hdr) {
10239 nlmsg_free(msg);
10240 return;
10241 }
10242
10243 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10244 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10245 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10246 goto nla_put_failure;
10247
10248 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10249 if (!pinfoattr)
10250 goto nla_put_failure;
10251
10252 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10253 goto nla_put_failure;
10254
10255 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10256 goto nla_put_failure;
10257
10258 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10259 goto nla_put_failure;
10260
10261 nla_nest_end(msg, pinfoattr);
10262
10263 genlmsg_end(msg, hdr);
10264
10265 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10266 nl80211_mlme_mcgrp.id, gfp);
10267 return;
10268
10269 nla_put_failure:
10270 genlmsg_cancel(msg, hdr);
10271 nlmsg_free(msg);
10272}
947add36 10273EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10274
04f39047
SW		 10275void
10276nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10277 struct cfg80211_chan_def *chandef,
10278 enum nl80211_radar_event event,
10279 struct net_device *netdev, gfp_t gfp)
10280{
10281 struct sk_buff *msg;
10282 void *hdr;
10283
10284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10285 if (!msg)
10286 return;
10287
10288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10289 if (!hdr) {
10290 nlmsg_free(msg);
10291 return;
10292 }
10293
10294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10295 goto nla_put_failure;
10296
10297 /* NOP and radar events don't need a netdev parameter */
10298 if (netdev) {
10299 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10300
10301 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10302 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10303 goto nla_put_failure;
10304 }
10305
10306 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10307 goto nla_put_failure;
10308
10309 if (nl80211_send_chandef(msg, chandef))
10310 goto nla_put_failure;
10311
10312 if (genlmsg_end(msg, hdr) < 0) {
10313 nlmsg_free(msg);
10314 return;
10315 }
10316
10317 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10318 nl80211_mlme_mcgrp.id, gfp);
10319 return;
10320
10321 nla_put_failure:
10322 genlmsg_cancel(msg, hdr);
10323 nlmsg_free(msg);
10324}
10325
947add36
JB		 10326void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10327 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10328{
947add36
JB		 10329 struct wireless_dev *wdev = dev->ieee80211_ptr;
10330 struct wiphy *wiphy = wdev->wiphy;
10331 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10332 struct sk_buff *msg;
10333 struct nlattr *pinfoattr;
10334 void *hdr;
10335
947add36
JB		 10336 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10337
58050fce 10338 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10339 if (!msg)
10340 return;
10341
10342 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10343 if (!hdr) {
10344 nlmsg_free(msg);
10345 return;
10346 }
10347
9360ffd1 10348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10349 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10350 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10351 goto nla_put_failure;
c063dbf5
JB		 10352
10353 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10354 if (!pinfoattr)
10355 goto nla_put_failure;
10356
9360ffd1
DM		 10357 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10358 goto nla_put_failure;
c063dbf5
JB		 10359
10360 nla_nest_end(msg, pinfoattr);
10361
3b7b72ee 10362 genlmsg_end(msg, hdr);
c063dbf5
JB		 10363
10364 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10365 nl80211_mlme_mcgrp.id, gfp);
10366 return;
10367
10368 nla_put_failure:
10369 genlmsg_cancel(msg, hdr);
10370 nlmsg_free(msg);
10371}
947add36 10372EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10373
7f6cf311
JB		 10374void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10375 u64 cookie, bool acked, gfp_t gfp)
10376{
10377 struct wireless_dev *wdev = dev->ieee80211_ptr;
10378 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10379 struct sk_buff *msg;
10380 void *hdr;
10381 int err;
10382
4ee3e063
BL		 10383 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10384
58050fce 10385 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10386
7f6cf311
JB		 10387 if (!msg)
10388 return;
10389
10390 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10391 if (!hdr) {
10392 nlmsg_free(msg);
10393 return;
10394 }
10395
9360ffd1
DM		 10396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10397 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10398 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10399 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10400 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10401 goto nla_put_failure;
7f6cf311
JB		 10402
10403 err = genlmsg_end(msg, hdr);
10404 if (err < 0) {
10405 nlmsg_free(msg);
10406 return;
10407 }
10408
10409 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10410 nl80211_mlme_mcgrp.id, gfp);
10411 return;
10412
10413 nla_put_failure:
10414 genlmsg_cancel(msg, hdr);
10415 nlmsg_free(msg);
10416}
10417EXPORT_SYMBOL(cfg80211_probe_status);
10418
5e760230
JB		 10419void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10420 const u8 *frame, size_t len,
37c73b5f 10421 int freq, int sig_dbm)
5e760230
JB		 10422{
10423 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10424 struct sk_buff *msg;
10425 void *hdr;
37c73b5f 10426 struct cfg80211_beacon_registration *reg;
5e760230 10427
4ee3e063
BL		 10428 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10429
37c73b5f
BG		 10430 spin_lock_bh(&rdev->beacon_registrations_lock);
10431 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10432 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10433 if (!msg) {
10434 spin_unlock_bh(&rdev->beacon_registrations_lock);
10435 return;
10436 }
5e760230 10437
37c73b5f
BG		 10438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10439 if (!hdr)
10440 goto nla_put_failure;
5e760230 10441
37c73b5f
BG		 10442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10443 (freq &&
10444 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10445 (sig_dbm &&
10446 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10447 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10448 goto nla_put_failure;
5e760230 10449
37c73b5f 10450 genlmsg_end(msg, hdr);
5e760230 10451
37c73b5f
BG		 10452 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10453 }
10454 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 10455 return;
10456
10457 nla_put_failure:
37c73b5f
BG		 10458 spin_unlock_bh(&rdev->beacon_registrations_lock);
10459 if (hdr)
10460 genlmsg_cancel(msg, hdr);
5e760230
JB		 10461 nlmsg_free(msg);
10462}
10463EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10464
cd8f7cb4
JB		 10465#ifdef CONFIG_PM
10466void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10467 struct cfg80211_wowlan_wakeup *wakeup,
10468 gfp_t gfp)
10469{
10470 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10471 struct sk_buff *msg;
10472 void *hdr;
10473 int err, size = 200;
10474
10475 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10476
10477 if (wakeup)
10478 size += wakeup->packet_present_len;
10479
10480 msg = nlmsg_new(size, gfp);
10481 if (!msg)
10482 return;
10483
10484 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10485 if (!hdr)
10486 goto free_msg;
10487
10488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10489 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10490 goto free_msg;
10491
10492 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10493 wdev->netdev->ifindex))
10494 goto free_msg;
10495
10496 if (wakeup) {
10497 struct nlattr *reasons;
10498
10499 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10500
10501 if (wakeup->disconnect &&
10502 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10503 goto free_msg;
10504 if (wakeup->magic_pkt &&
10505 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10506 goto free_msg;
10507 if (wakeup->gtk_rekey_failure &&
10508 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10509 goto free_msg;
10510 if (wakeup->eap_identity_req &&
10511 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10512 goto free_msg;
10513 if (wakeup->four_way_handshake &&
10514 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10515 goto free_msg;
10516 if (wakeup->rfkill_release &&
10517 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10518 goto free_msg;
10519
10520 if (wakeup->pattern_idx >= 0 &&
10521 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10522 wakeup->pattern_idx))
10523 goto free_msg;
10524
2a0e047e
JB		 10525 if (wakeup->tcp_match)
10526 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10527
10528 if (wakeup->tcp_connlost)
10529 nla_put_flag(msg,
10530 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10531
10532 if (wakeup->tcp_nomoretokens)
10533 nla_put_flag(msg,
10534 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10535
cd8f7cb4
JB		 10536 if (wakeup->packet) {
10537 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10538 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10539
10540 if (!wakeup->packet_80211) {
10541 pkt_attr =
10542 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10543 len_attr =
10544 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10545 }
10546
10547 if (wakeup->packet_len &&
10548 nla_put_u32(msg, len_attr, wakeup->packet_len))
10549 goto free_msg;
10550
10551 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10552 wakeup->packet))
10553 goto free_msg;
10554 }
10555
10556 nla_nest_end(msg, reasons);
10557 }
10558
10559 err = genlmsg_end(msg, hdr);
10560 if (err < 0)
10561 goto free_msg;
10562
10563 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10564 nl80211_mlme_mcgrp.id, gfp);
10565 return;
10566
10567 free_msg:
10568 nlmsg_free(msg);
10569}
10570EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10571#endif
10572
3475b094
JM		 10573void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10574 enum nl80211_tdls_operation oper,
10575 u16 reason_code, gfp_t gfp)
10576{
10577 struct wireless_dev *wdev = dev->ieee80211_ptr;
10578 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10579 struct sk_buff *msg;
10580 void *hdr;
10581 int err;
10582
10583 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10584 reason_code);
10585
10586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10587 if (!msg)
10588 return;
10589
10590 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10591 if (!hdr) {
10592 nlmsg_free(msg);
10593 return;
10594 }
10595
10596 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10597 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10598 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10599 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10600 (reason_code > 0 &&
10601 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10602 goto nla_put_failure;
10603
10604 err = genlmsg_end(msg, hdr);
10605 if (err < 0) {
10606 nlmsg_free(msg);
10607 return;
10608 }
10609
10610 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10611 nl80211_mlme_mcgrp.id, gfp);
10612 return;
10613
10614 nla_put_failure:
10615 genlmsg_cancel(msg, hdr);
10616 nlmsg_free(msg);
10617}
10618EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10619
026331c4
JM		 10620static int nl80211_netlink_notify(struct notifier_block * nb,
10621 unsigned long state,
10622 void *_notify)
10623{
10624 struct netlink_notify *notify = _notify;
10625 struct cfg80211_registered_device *rdev;
10626 struct wireless_dev *wdev;
37c73b5f 10627 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10628
10629 if (state != NETLINK_URELEASE)
10630 return NOTIFY_DONE;
10631
10632 rcu_read_lock();
10633
5e760230 10634 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10635 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10636 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10637
10638 spin_lock_bh(&rdev->beacon_registrations_lock);
10639 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10640 list) {
10641 if (reg->nlportid == notify->portid) {
10642 list_del(&reg->list);
10643 kfree(reg);
10644 break;
10645 }
10646 }
10647 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10648 }
026331c4
JM		 10649
10650 rcu_read_unlock();
10651
10652 return NOTIFY_DONE;
10653}
10654
10655static struct notifier_block nl80211_netlink_notifier = {
10656 .notifier_call = nl80211_netlink_notify,
10657};
10658
355199e0
JM		 10659void cfg80211_ft_event(struct net_device *netdev,
10660 struct cfg80211_ft_event_params *ft_event)
10661{
10662 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10663 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10664 struct sk_buff *msg;
10665 void *hdr;
10666 int err;
10667
10668 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10669
10670 if (!ft_event->target_ap)
10671 return;
10672
10673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10674 if (!msg)
10675 return;
10676
10677 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10678 if (!hdr) {
10679 nlmsg_free(msg);
10680 return;
10681 }
10682
10683 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10685 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10686 if (ft_event->ies)
10687 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10688 if (ft_event->ric_ies)
10689 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10690 ft_event->ric_ies);
10691
10692 err = genlmsg_end(msg, hdr);
10693 if (err < 0) {
10694 nlmsg_free(msg);
10695 return;
10696 }
10697
10698 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10699 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10700}
10701EXPORT_SYMBOL(cfg80211_ft_event);
10702
5de17984
AS		 10703void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10704{
10705 struct cfg80211_registered_device *rdev;
10706 struct sk_buff *msg;
10707 void *hdr;
10708 u32 nlportid;
10709
10710 rdev = wiphy_to_dev(wdev->wiphy);
10711 if (!rdev->crit_proto_nlportid)
10712 return;
10713
10714 nlportid = rdev->crit_proto_nlportid;
10715 rdev->crit_proto_nlportid = 0;
10716
10717 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10718 if (!msg)
10719 return;
10720
10721 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10722 if (!hdr)
10723 goto nla_put_failure;
10724
10725 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10726 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10727 goto nla_put_failure;
10728
10729 genlmsg_end(msg, hdr);
10730
10731 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10732 return;
10733
10734 nla_put_failure:
10735 if (hdr)
10736 genlmsg_cancel(msg, hdr);
10737 nlmsg_free(msg);
10738
10739}
10740EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10741
55682965
JB		 10742/* initialisation/exit functions */
10743
10744int nl80211_init(void)
10745{
0d63cbb5 10746 int err;
55682965 10747
0d63cbb5
MM		 10748 err = genl_register_family_with_ops(&nl80211_fam,
10749 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10750 if (err)
10751 return err;
10752
55682965
JB		 10753 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10754 if (err)
10755 goto err_out;
10756
2a519311
JB		 10757 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10758 if (err)
10759 goto err_out;
10760
73d54c9e
LR		 10761 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10762 if (err)
10763 goto err_out;
10764
6039f6d2
JM		 10765 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10766 if (err)
10767 goto err_out;
10768
aff89a9b
JB		 10769#ifdef CONFIG_NL80211_TESTMODE
10770 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10771 if (err)
10772 goto err_out;
10773#endif
10774
026331c4
JM		 10775 err = netlink_register_notifier(&nl80211_netlink_notifier);
10776 if (err)
10777 goto err_out;
10778
55682965
JB		 10779 return 0;
10780 err_out:
10781 genl_unregister_family(&nl80211_fam);
10782 return err;
10783}
10784
10785void nl80211_exit(void)
10786{
026331c4 10787 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10788 genl_unregister_family(&nl80211_fam);
10789}
Ubuntu Eoan Linux kernel mirror