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cfg80211: enforce disabling channels by custom or strict settings
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
fb4e1568
MH		 40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
55682965 44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
89a54e48
JB		 50/* returns ERR_PTR values */
51static struct wireless_dev *
52__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 53{
89a54e48
JB		 54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
58 u64 wdev_id;
59 int wiphy_idx = -1;
60 int ifidx = -1;
55682965 61
5fe231e8 62 ASSERT_RTNL();
55682965 63
89a54e48
JB		 64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
55682965 66
89a54e48
JB		 67 if (have_ifidx)
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 if (have_wdev_id) {
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
55682965
JB		 72 }
73
89a54e48
JB		 74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
76
77 if (wiphy_net(&rdev->wiphy) != netns)
78 continue;
79
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
81 continue;
82
89a54e48
JB		 83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
89a54e48
JB		 94
95 if (result)
96 break;
97 }
98
99 if (result)
100 return result;
101 return ERR_PTR(-ENODEV);
55682965
JB		 102}
103
a9455408 104static struct cfg80211_registered_device *
878d9ec7 105__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 106{
7fee4778
JB		 107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
a9455408 109
5fe231e8 110 ASSERT_RTNL();
a9455408 111
878d9ec7 112 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 115 return ERR_PTR(-EINVAL);
116
878d9ec7 117 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 118 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 120
89a54e48
JB		 121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
124 bool found = false;
125
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
127 if (tmp) {
128 /* make sure wdev exists */
89a54e48
JB		 129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
131 continue;
132 found = true;
133 break;
134 }
89a54e48
JB		 135
136 if (!found)
137 tmp = NULL;
138
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
141 rdev = tmp;
142 }
143 }
144
878d9ec7
JB		 145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 147 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 148 if (netdev) {
149 if (netdev->ieee80211_ptr)
150 tmp = wiphy_to_dev(
151 netdev->ieee80211_ptr->wiphy);
152 else
153 tmp = NULL;
154
155 dev_put(netdev);
156
157 /* not wireless device -- return error */
158 if (!tmp)
159 return ERR_PTR(-EINVAL);
160
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
164
165 rdev = tmp;
a9455408 166 }
a9455408 167 }
a9455408 168
4f7eff10
JB		 169 if (!rdev)
170 return ERR_PTR(-ENODEV);
a9455408 171
4f7eff10
JB		 172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
174
175 return rdev;
a9455408
JB		 176}
177
178/*
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
a9455408
JB		 181 *
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
184 */
185static struct cfg80211_registered_device *
4f7eff10 186cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 187{
5fe231e8 188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 189}
190
55682965 191/* policy for the attributes */
b54452b0 192static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 195 .len = 20-1 },
31888487 196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 197
72bdcf34 198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
203
b9a5f8ca
JM		 204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 209
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 213
e007b857
EP		 214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 216
b9454e83 217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 225
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 241 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 243
b2e1b302
LR		 244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
246
9f1ba906
JM		 247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
50b12f59 252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 253
24bdd9f4 254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 256
6c739419 257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 258
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 264
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
274 },
3f77316c 275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
328 },
1d9d9213 329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
347 },
355199e0
JM		 348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 352 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
353 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
354 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
355 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
356 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
c01fc9ad
SD		 357 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
358 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 359 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
55682965
JB		 360};
361
e31b8213 362/* policy for the key attributes */
b54452b0 363static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 364 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 365 [NL80211_KEY_IDX] = { .type = NLA_U8 },
366 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 367 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 368 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
369 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 370 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 371 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
372};
373
374/* policy for the key default flags */
375static const struct nla_policy
376nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
377 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
378 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 379};
380
ff1b6e69
JB		 381/* policy for WoWLAN attributes */
382static const struct nla_policy
383nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
384 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
385 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 388 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
389 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
390 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 392 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
393};
394
395static const struct nla_policy
396nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
397 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
398 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
399 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
400 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
401 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
402 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
403 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
404 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
405 },
406 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
407 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
408 },
409 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
410 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
411 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 412};
413
be29b99a
AK		 414/* policy for coalesce rule attributes */
415static const struct nla_policy
416nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
417 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
418 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
419 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
420};
421
e5497d76
JB		 422/* policy for GTK rekey offload attributes */
423static const struct nla_policy
424nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
425 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
426 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
427 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
428};
429
a1f1c21c
LC		 430static const struct nla_policy
431nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 432 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 433 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 434 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 435};
436
97990a06
JB		 437static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
438 struct netlink_callback *cb,
439 struct cfg80211_registered_device **rdev,
440 struct wireless_dev **wdev)
a043897a 441{
97990a06 442 int err;
a043897a 443
97990a06 444 rtnl_lock();
a043897a 445
97990a06
JB		 446 if (!cb->args[0]) {
447 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
448 nl80211_fam.attrbuf, nl80211_fam.maxattr,
449 nl80211_policy);
450 if (err)
451 goto out_unlock;
67748893 452
97990a06
JB		 453 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
454 nl80211_fam.attrbuf);
455 if (IS_ERR(*wdev)) {
456 err = PTR_ERR(*wdev);
457 goto out_unlock;
458 }
459 *rdev = wiphy_to_dev((*wdev)->wiphy);
c319d50b
JB		 460 /* 0 is the first index - add 1 to parse only once */
461 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 462 cb->args[1] = (*wdev)->identifier;
463 } else {
c319d50b
JB		 464 /* subtract the 1 again here */
465 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 466 struct wireless_dev *tmp;
67748893 467
97990a06
JB		 468 if (!wiphy) {
469 err = -ENODEV;
470 goto out_unlock;
471 }
472 *rdev = wiphy_to_dev(wiphy);
473 *wdev = NULL;
67748893 474
97990a06
JB		 475 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
476 if (tmp->identifier == cb->args[1]) {
477 *wdev = tmp;
478 break;
479 }
480 }
67748893 481
97990a06
JB		 482 if (!*wdev) {
483 err = -ENODEV;
484 goto out_unlock;
485 }
67748893
JB		 486 }
487
67748893 488 return 0;
97990a06 489 out_unlock:
67748893
JB		 490 rtnl_unlock();
491 return err;
492}
493
97990a06 494static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 495{
67748893
JB		 496 rtnl_unlock();
497}
498
f4a11bb0
JB		 499/* IE validation */
500static bool is_valid_ie_attr(const struct nlattr *attr)
501{
502 const u8 *pos;
503 int len;
504
505 if (!attr)
506 return true;
507
508 pos = nla_data(attr);
509 len = nla_len(attr);
510
511 while (len) {
512 u8 elemlen;
513
514 if (len < 2)
515 return false;
516 len -= 2;
517
518 elemlen = pos[1];
519 if (elemlen > len)
520 return false;
521
522 len -= elemlen;
523 pos += 2 + elemlen;
524 }
525
526 return true;
527}
528
55682965 529/* message building helper */
15e47304 530static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 531 int flags, u8 cmd)
532{
533 /* since there is no private header just add the generic one */
15e47304 534 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 535}
536
5dab3b8a 537static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 538 struct ieee80211_channel *chan,
539 bool large)
5dab3b8a 540{
9360ffd1
DM		 541 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
542 chan->center_freq))
543 goto nla_put_failure;
5dab3b8a 544
9360ffd1
DM		 545 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
546 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
547 goto nla_put_failure;
8fe02e16
LR		 548 if (chan->flags & IEEE80211_CHAN_NO_IR) {
549 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
550 goto nla_put_failure;
551 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
552 goto nla_put_failure;
553 }
cdc89b97
JB		 554 if (chan->flags & IEEE80211_CHAN_RADAR) {
555 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
556 goto nla_put_failure;
557 if (large) {
558 u32 time;
559
560 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
561
562 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
563 chan->dfs_state))
564 goto nla_put_failure;
565 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
566 time))
567 goto nla_put_failure;
568 }
569 }
5dab3b8a 570
fe1abafd
JB		 571 if (large) {
572 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
573 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
574 goto nla_put_failure;
575 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
576 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
577 goto nla_put_failure;
578 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
579 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
580 goto nla_put_failure;
581 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
582 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
583 goto nla_put_failure;
584 }
585
9360ffd1
DM		 586 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
587 DBM_TO_MBM(chan->max_power)))
588 goto nla_put_failure;
5dab3b8a
LR		 589
590 return 0;
591
592 nla_put_failure:
593 return -ENOBUFS;
594}
595
55682965
JB		 596/* netlink command implementations */
597
b9454e83
JB		 598struct key_parse {
599 struct key_params p;
600 int idx;
e31b8213 601 int type;
b9454e83 602 bool def, defmgmt;
dbd2fd65 603 bool def_uni, def_multi;
b9454e83
JB		 604};
605
606static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
607{
608 struct nlattr *tb[NL80211_KEY_MAX + 1];
609 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
610 nl80211_key_policy);
611 if (err)
612 return err;
613
614 k->def = !!tb[NL80211_KEY_DEFAULT];
615 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
616
dbd2fd65
JB		 617 if (k->def) {
618 k->def_uni = true;
619 k->def_multi = true;
620 }
621 if (k->defmgmt)
622 k->def_multi = true;
623
b9454e83
JB		 624 if (tb[NL80211_KEY_IDX])
625 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
626
627 if (tb[NL80211_KEY_DATA]) {
628 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
629 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
630 }
631
632 if (tb[NL80211_KEY_SEQ]) {
633 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
634 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
635 }
636
637 if (tb[NL80211_KEY_CIPHER])
638 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
639
e31b8213
JB		 640 if (tb[NL80211_KEY_TYPE]) {
641 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
642 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
643 return -EINVAL;
644 }
645
dbd2fd65
JB		 646 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
647 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 648 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
649 tb[NL80211_KEY_DEFAULT_TYPES],
650 nl80211_key_default_policy);
dbd2fd65
JB		 651 if (err)
652 return err;
653
654 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
655 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
656 }
657
b9454e83
JB		 658 return 0;
659}
660
661static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
662{
663 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
664 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
665 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
666 }
667
668 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
669 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
670 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
671 }
672
673 if (info->attrs[NL80211_ATTR_KEY_IDX])
674 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
675
676 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
677 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
678
679 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
680 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
681
dbd2fd65
JB		 682 if (k->def) {
683 k->def_uni = true;
684 k->def_multi = true;
685 }
686 if (k->defmgmt)
687 k->def_multi = true;
688
e31b8213
JB		 689 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
690 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
691 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
692 return -EINVAL;
693 }
694
dbd2fd65
JB		 695 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
696 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
697 int err = nla_parse_nested(
698 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
699 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
700 nl80211_key_default_policy);
701 if (err)
702 return err;
703
704 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
705 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
706 }
707
b9454e83
JB		 708 return 0;
709}
710
711static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
712{
713 int err;
714
715 memset(k, 0, sizeof(*k));
716 k->idx = -1;
e31b8213 717 k->type = -1;
b9454e83
JB		 718
719 if (info->attrs[NL80211_ATTR_KEY])
720 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
721 else
722 err = nl80211_parse_key_old(info, k);
723
724 if (err)
725 return err;
726
727 if (k->def && k->defmgmt)
728 return -EINVAL;
729
dbd2fd65
JB		 730 if (k->defmgmt) {
731 if (k->def_uni || !k->def_multi)
732 return -EINVAL;
733 }
734
b9454e83
JB		 735 if (k->idx != -1) {
736 if (k->defmgmt) {
737 if (k->idx < 4 || k->idx > 5)
738 return -EINVAL;
739 } else if (k->def) {
740 if (k->idx < 0 || k->idx > 3)
741 return -EINVAL;
742 } else {
743 if (k->idx < 0 || k->idx > 5)
744 return -EINVAL;
745 }
746 }
747
748 return 0;
749}
750
fffd0934
JB		 751static struct cfg80211_cached_keys *
752nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 753 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 754{
755 struct key_parse parse;
756 struct nlattr *key;
757 struct cfg80211_cached_keys *result;
758 int rem, err, def = 0;
759
760 result = kzalloc(sizeof(*result), GFP_KERNEL);
761 if (!result)
762 return ERR_PTR(-ENOMEM);
763
764 result->def = -1;
765 result->defmgmt = -1;
766
767 nla_for_each_nested(key, keys, rem) {
768 memset(&parse, 0, sizeof(parse));
769 parse.idx = -1;
770
771 err = nl80211_parse_key_new(key, &parse);
772 if (err)
773 goto error;
774 err = -EINVAL;
775 if (!parse.p.key)
776 goto error;
777 if (parse.idx < 0 || parse.idx > 4)
778 goto error;
779 if (parse.def) {
780 if (def)
781 goto error;
782 def = 1;
783 result->def = parse.idx;
dbd2fd65
JB		 784 if (!parse.def_uni || !parse.def_multi)
785 goto error;
fffd0934
JB		 786 } else if (parse.defmgmt)
787 goto error;
788 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 789 parse.idx, false, NULL);
fffd0934
JB		 790 if (err)
791 goto error;
792 result->params[parse.idx].cipher = parse.p.cipher;
793 result->params[parse.idx].key_len = parse.p.key_len;
794 result->params[parse.idx].key = result->data[parse.idx];
795 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 796
797 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
798 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
799 if (no_ht)
800 *no_ht = true;
801 }
fffd0934
JB		 802 }
803
804 return result;
805 error:
806 kfree(result);
807 return ERR_PTR(err);
808}
809
810static int nl80211_key_allowed(struct wireless_dev *wdev)
811{
812 ASSERT_WDEV_LOCK(wdev);
813
fffd0934
JB		 814 switch (wdev->iftype) {
815 case NL80211_IFTYPE_AP:
816 case NL80211_IFTYPE_AP_VLAN:
074ac8df 817 case NL80211_IFTYPE_P2P_GO:
ff973af7 818 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 819 break;
820 case NL80211_IFTYPE_ADHOC:
fffd0934 821 case NL80211_IFTYPE_STATION:
074ac8df 822 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 823 if (!wdev->current_bss)
fffd0934
JB		 824 return -ENOLINK;
825 break;
826 default:
827 return -EINVAL;
828 }
829
830 return 0;
831}
832
7527a782
JB		 833static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
834{
835 struct nlattr *nl_modes = nla_nest_start(msg, attr);
836 int i;
837
838 if (!nl_modes)
839 goto nla_put_failure;
840
841 i = 0;
842 while (ifmodes) {
9360ffd1
DM		 843 if ((ifmodes & 1) && nla_put_flag(msg, i))
844 goto nla_put_failure;
7527a782
JB		 845 ifmodes >>= 1;
846 i++;
847 }
848
849 nla_nest_end(msg, nl_modes);
850 return 0;
851
852nla_put_failure:
853 return -ENOBUFS;
854}
855
856static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 857 struct sk_buff *msg,
858 bool large)
7527a782
JB		 859{
860 struct nlattr *nl_combis;
861 int i, j;
862
863 nl_combis = nla_nest_start(msg,
864 NL80211_ATTR_INTERFACE_COMBINATIONS);
865 if (!nl_combis)
866 goto nla_put_failure;
867
868 for (i = 0; i < wiphy->n_iface_combinations; i++) {
869 const struct ieee80211_iface_combination *c;
870 struct nlattr *nl_combi, *nl_limits;
871
872 c = &wiphy->iface_combinations[i];
873
874 nl_combi = nla_nest_start(msg, i + 1);
875 if (!nl_combi)
876 goto nla_put_failure;
877
878 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
879 if (!nl_limits)
880 goto nla_put_failure;
881
882 for (j = 0; j < c->n_limits; j++) {
883 struct nlattr *nl_limit;
884
885 nl_limit = nla_nest_start(msg, j + 1);
886 if (!nl_limit)
887 goto nla_put_failure;
9360ffd1
DM		 888 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
889 c->limits[j].max))
890 goto nla_put_failure;
7527a782
JB		 891 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
892 c->limits[j].types))
893 goto nla_put_failure;
894 nla_nest_end(msg, nl_limit);
895 }
896
897 nla_nest_end(msg, nl_limits);
898
9360ffd1
DM		 899 if (c->beacon_int_infra_match &&
900 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
901 goto nla_put_failure;
902 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
903 c->num_different_channels) ||
904 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
905 c->max_interfaces))
906 goto nla_put_failure;
cdc89b97
JB		 907 if (large &&
908 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
909 c->radar_detect_widths))
910 goto nla_put_failure;
7527a782
JB		 911
912 nla_nest_end(msg, nl_combi);
913 }
914
915 nla_nest_end(msg, nl_combis);
916
917 return 0;
918nla_put_failure:
919 return -ENOBUFS;
920}
921
3713b4e3 922#ifdef CONFIG_PM
b56cf720
JB		 923static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
924 struct sk_buff *msg)
925{
964dc9e2 926 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 927 struct nlattr *nl_tcp;
928
929 if (!tcp)
930 return 0;
931
932 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
933 if (!nl_tcp)
934 return -ENOBUFS;
935
936 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
937 tcp->data_payload_max))
938 return -ENOBUFS;
939
940 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
941 tcp->data_payload_max))
942 return -ENOBUFS;
943
944 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
945 return -ENOBUFS;
946
947 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
948 sizeof(*tcp->tok), tcp->tok))
949 return -ENOBUFS;
950
951 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
952 tcp->data_interval_max))
953 return -ENOBUFS;
954
955 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
956 tcp->wake_payload_max))
957 return -ENOBUFS;
958
959 nla_nest_end(msg, nl_tcp);
960 return 0;
961}
962
3713b4e3 963static int nl80211_send_wowlan(struct sk_buff *msg,
b56cf720
JB		 964 struct cfg80211_registered_device *dev,
965 bool large)
55682965 966{
3713b4e3 967 struct nlattr *nl_wowlan;
55682965 968
964dc9e2 969 if (!dev->wiphy.wowlan)
3713b4e3 970 return 0;
55682965 971
3713b4e3
JB		 972 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
973 if (!nl_wowlan)
974 return -ENOBUFS;
9360ffd1 975
964dc9e2 976 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 977 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
964dc9e2 978 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 979 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
964dc9e2 980 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 981 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964dc9e2 982 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 983 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
964dc9e2 984 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 985 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
964dc9e2 986 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 987 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
964dc9e2 988 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 989 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
964dc9e2 990 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 991 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
992 return -ENOBUFS;
9360ffd1 993
964dc9e2 994 if (dev->wiphy.wowlan->n_patterns) {
50ac6607 995 struct nl80211_pattern_support pat = {
964dc9e2
JB		 996 .max_patterns = dev->wiphy.wowlan->n_patterns,
997 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
998 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
999 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1000 };
9360ffd1 1001
3713b4e3
JB		 1002 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1003 sizeof(pat), &pat))
1004 return -ENOBUFS;
1005 }
9360ffd1 1006
b56cf720
JB		 1007 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1008 return -ENOBUFS;
1009
3713b4e3 1010 nla_nest_end(msg, nl_wowlan);
9360ffd1 1011
3713b4e3
JB		 1012 return 0;
1013}
1014#endif
9360ffd1 1015
be29b99a
AK		 1016static int nl80211_send_coalesce(struct sk_buff *msg,
1017 struct cfg80211_registered_device *dev)
1018{
1019 struct nl80211_coalesce_rule_support rule;
1020
1021 if (!dev->wiphy.coalesce)
1022 return 0;
1023
1024 rule.max_rules = dev->wiphy.coalesce->n_rules;
1025 rule.max_delay = dev->wiphy.coalesce->max_delay;
1026 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1027 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1028 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1029 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1030
1031 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1032 return -ENOBUFS;
1033
1034 return 0;
1035}
1036
3713b4e3
JB		 1037static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1038 struct ieee80211_supported_band *sband)
1039{
1040 struct nlattr *nl_rates, *nl_rate;
1041 struct ieee80211_rate *rate;
1042 int i;
87bbbe22 1043
3713b4e3
JB		 1044 /* add HT info */
1045 if (sband->ht_cap.ht_supported &&
1046 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1047 sizeof(sband->ht_cap.mcs),
1048 &sband->ht_cap.mcs) ||
1049 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1050 sband->ht_cap.cap) ||
1051 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1052 sband->ht_cap.ampdu_factor) ||
1053 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1054 sband->ht_cap.ampdu_density)))
1055 return -ENOBUFS;
afe0cbf8 1056
3713b4e3
JB		 1057 /* add VHT info */
1058 if (sband->vht_cap.vht_supported &&
1059 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1060 sizeof(sband->vht_cap.vht_mcs),
1061 &sband->vht_cap.vht_mcs) ||
1062 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1063 sband->vht_cap.cap)))
1064 return -ENOBUFS;
f59ac048 1065
3713b4e3
JB		 1066 /* add bitrates */
1067 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1068 if (!nl_rates)
1069 return -ENOBUFS;
ee688b00 1070
3713b4e3
JB		 1071 for (i = 0; i < sband->n_bitrates; i++) {
1072 nl_rate = nla_nest_start(msg, i);
1073 if (!nl_rate)
1074 return -ENOBUFS;
ee688b00 1075
3713b4e3
JB		 1076 rate = &sband->bitrates[i];
1077 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1078 rate->bitrate))
1079 return -ENOBUFS;
1080 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1081 nla_put_flag(msg,
1082 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1083 return -ENOBUFS;
ee688b00 1084
3713b4e3
JB		 1085 nla_nest_end(msg, nl_rate);
1086 }
d51626df 1087
3713b4e3 1088 nla_nest_end(msg, nl_rates);
bf0c111e 1089
3713b4e3
JB		 1090 return 0;
1091}
ee688b00 1092
3713b4e3
JB		 1093static int
1094nl80211_send_mgmt_stypes(struct sk_buff *msg,
1095 const struct ieee80211_txrx_stypes *mgmt_stypes)
1096{
1097 u16 stypes;
1098 struct nlattr *nl_ftypes, *nl_ifs;
1099 enum nl80211_iftype ift;
1100 int i;
ee688b00 1101
3713b4e3
JB		 1102 if (!mgmt_stypes)
1103 return 0;
5dab3b8a 1104
3713b4e3
JB		 1105 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1106 if (!nl_ifs)
1107 return -ENOBUFS;
e2f367f2 1108
3713b4e3
JB		 1109 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1110 nl_ftypes = nla_nest_start(msg, ift);
1111 if (!nl_ftypes)
1112 return -ENOBUFS;
1113 i = 0;
1114 stypes = mgmt_stypes[ift].tx;
1115 while (stypes) {
1116 if ((stypes & 1) &&
1117 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1118 (i << 4) | IEEE80211_FTYPE_MGMT))
1119 return -ENOBUFS;
1120 stypes >>= 1;
1121 i++;
ee688b00 1122 }
3713b4e3
JB		 1123 nla_nest_end(msg, nl_ftypes);
1124 }
ee688b00 1125
3713b4e3 1126 nla_nest_end(msg, nl_ifs);
ee688b00 1127
3713b4e3
JB		 1128 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1129 if (!nl_ifs)
1130 return -ENOBUFS;
ee688b00 1131
3713b4e3
JB		 1132 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1133 nl_ftypes = nla_nest_start(msg, ift);
1134 if (!nl_ftypes)
1135 return -ENOBUFS;
1136 i = 0;
1137 stypes = mgmt_stypes[ift].rx;
1138 while (stypes) {
1139 if ((stypes & 1) &&
1140 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1141 (i << 4) | IEEE80211_FTYPE_MGMT))
1142 return -ENOBUFS;
1143 stypes >>= 1;
1144 i++;
1145 }
1146 nla_nest_end(msg, nl_ftypes);
1147 }
1148 nla_nest_end(msg, nl_ifs);
ee688b00 1149
3713b4e3
JB		 1150 return 0;
1151}
ee688b00 1152
86e8cf98
JB		 1153struct nl80211_dump_wiphy_state {
1154 s64 filter_wiphy;
1155 long start;
1156 long split_start, band_start, chan_start;
1157 bool split;
1158};
1159
3713b4e3
JB		 1160static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1161 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1162 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1163{
1164 void *hdr;
1165 struct nlattr *nl_bands, *nl_band;
1166 struct nlattr *nl_freqs, *nl_freq;
1167 struct nlattr *nl_cmds;
1168 enum ieee80211_band band;
1169 struct ieee80211_channel *chan;
1170 int i;
1171 const struct ieee80211_txrx_stypes *mgmt_stypes =
1172 dev->wiphy.mgmt_stypes;
fe1abafd 1173 u32 features;
ee688b00 1174
3713b4e3
JB		 1175 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1176 if (!hdr)
1177 return -ENOBUFS;
ee688b00 1178
86e8cf98
JB		 1179 if (WARN_ON(!state))
1180 return -EINVAL;
ee688b00 1181
3713b4e3
JB		 1182 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1183 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1184 wiphy_name(&dev->wiphy)) ||
1185 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1186 cfg80211_rdev_list_generation))
8fdc621d
JB		 1187 goto nla_put_failure;
1188
86e8cf98 1189 switch (state->split_start) {
3713b4e3
JB		 1190 case 0:
1191 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1192 dev->wiphy.retry_short) ||
1193 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1194 dev->wiphy.retry_long) ||
1195 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1196 dev->wiphy.frag_threshold) ||
1197 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1198 dev->wiphy.rts_threshold) ||
1199 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1200 dev->wiphy.coverage_class) ||
1201 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1202 dev->wiphy.max_scan_ssids) ||
1203 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1204 dev->wiphy.max_sched_scan_ssids) ||
1205 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1206 dev->wiphy.max_scan_ie_len) ||
1207 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1208 dev->wiphy.max_sched_scan_ie_len) ||
1209 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1210 dev->wiphy.max_match_sets))
9360ffd1 1211 goto nla_put_failure;
3713b4e3
JB		 1212
1213 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1214 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1215 goto nla_put_failure;
3713b4e3
JB		 1216 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1217 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1218 goto nla_put_failure;
1219 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1220 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1221 goto nla_put_failure;
1222 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1223 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1224 goto nla_put_failure;
1225 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1226 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1227 goto nla_put_failure;
1228 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1229 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1230 goto nla_put_failure;
2f301ab2
SW		 1231 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1232 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1233 goto nla_put_failure;
8fdc621d 1234
86e8cf98
JB		 1235 state->split_start++;
1236 if (state->split)
3713b4e3
JB		 1237 break;
1238 case 1:
1239 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1240 sizeof(u32) * dev->wiphy.n_cipher_suites,
1241 dev->wiphy.cipher_suites))
1242 goto nla_put_failure;
4745fc09 1243
3713b4e3
JB		 1244 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1245 dev->wiphy.max_num_pmkids))
1246 goto nla_put_failure;
b23aa676 1247
3713b4e3
JB		 1248 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1249 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1250 goto nla_put_failure;
b23aa676 1251
3713b4e3
JB		 1252 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1253 dev->wiphy.available_antennas_tx) ||
1254 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1255 dev->wiphy.available_antennas_rx))
9360ffd1 1256 goto nla_put_failure;
b23aa676 1257
3713b4e3
JB		 1258 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1259 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1260 dev->wiphy.probe_resp_offload))
1261 goto nla_put_failure;
8fdc621d 1262
3713b4e3
JB		 1263 if ((dev->wiphy.available_antennas_tx ||
1264 dev->wiphy.available_antennas_rx) &&
1265 dev->ops->get_antenna) {
1266 u32 tx_ant = 0, rx_ant = 0;
1267 int res;
1268 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1269 if (!res) {
1270 if (nla_put_u32(msg,
1271 NL80211_ATTR_WIPHY_ANTENNA_TX,
1272 tx_ant) ||
1273 nla_put_u32(msg,
1274 NL80211_ATTR_WIPHY_ANTENNA_RX,
1275 rx_ant))
1276 goto nla_put_failure;
1277 }
1278 }
a293911d 1279
86e8cf98
JB		 1280 state->split_start++;
1281 if (state->split)
3713b4e3
JB		 1282 break;
1283 case 2:
1284 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1285 dev->wiphy.interface_modes))
1286 goto nla_put_failure;
86e8cf98
JB		 1287 state->split_start++;
1288 if (state->split)
3713b4e3
JB		 1289 break;
1290 case 3:
1291 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1292 if (!nl_bands)
1293 goto nla_put_failure;
f7ca38df 1294
86e8cf98
JB		 1295 for (band = state->band_start;
1296 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1297 struct ieee80211_supported_band *sband;
2e161f78 1298
3713b4e3 1299 sband = dev->wiphy.bands[band];
2e161f78 1300
3713b4e3
JB		 1301 if (!sband)
1302 continue;
1303
1304 nl_band = nla_nest_start(msg, band);
1305 if (!nl_band)
2e161f78 1306 goto nla_put_failure;
3713b4e3 1307
86e8cf98 1308 switch (state->chan_start) {
3713b4e3
JB		 1309 case 0:
1310 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1311 goto nla_put_failure;
86e8cf98
JB		 1312 state->chan_start++;
1313 if (state->split)
3713b4e3
JB		 1314 break;
1315 default:
1316 /* add frequencies */
1317 nl_freqs = nla_nest_start(
1318 msg, NL80211_BAND_ATTR_FREQS);
1319 if (!nl_freqs)
1320 goto nla_put_failure;
1321
86e8cf98 1322 for (i = state->chan_start - 1;
3713b4e3
JB		 1323 i < sband->n_channels;
1324 i++) {
1325 nl_freq = nla_nest_start(msg, i);
1326 if (!nl_freq)
1327 goto nla_put_failure;
1328
1329 chan = &sband->channels[i];
1330
86e8cf98
JB		 1331 if (nl80211_msg_put_channel(
1332 msg, chan,
1333 state->split))
3713b4e3
JB		 1334 goto nla_put_failure;
1335
1336 nla_nest_end(msg, nl_freq);
86e8cf98 1337 if (state->split)
3713b4e3
JB		 1338 break;
1339 }
1340 if (i < sband->n_channels)
86e8cf98 1341 state->chan_start = i + 2;
3713b4e3 1342 else
86e8cf98 1343 state->chan_start = 0;
3713b4e3
JB		 1344 nla_nest_end(msg, nl_freqs);
1345 }
1346
1347 nla_nest_end(msg, nl_band);
1348
86e8cf98 1349 if (state->split) {
3713b4e3 1350 /* start again here */
86e8cf98 1351 if (state->chan_start)
3713b4e3
JB		 1352 band--;
1353 break;
2e161f78 1354 }
2e161f78 1355 }
3713b4e3 1356 nla_nest_end(msg, nl_bands);
2e161f78 1357
3713b4e3 1358 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1359 state->band_start = band + 1;
3713b4e3 1360 else
86e8cf98 1361 state->band_start = 0;
74b70a4e 1362
3713b4e3 1363 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1364 if (state->band_start == 0 && state->chan_start == 0)
1365 state->split_start++;
1366 if (state->split)
3713b4e3
JB		 1367 break;
1368 case 4:
1369 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1370 if (!nl_cmds)
2e161f78
JB		 1371 goto nla_put_failure;
1372
3713b4e3
JB		 1373 i = 0;
1374#define CMD(op, n) \
1375 do { \
1376 if (dev->ops->op) { \
1377 i++; \
1378 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1379 goto nla_put_failure; \
1380 } \
1381 } while (0)
1382
1383 CMD(add_virtual_intf, NEW_INTERFACE);
1384 CMD(change_virtual_intf, SET_INTERFACE);
1385 CMD(add_key, NEW_KEY);
1386 CMD(start_ap, START_AP);
1387 CMD(add_station, NEW_STATION);
1388 CMD(add_mpath, NEW_MPATH);
1389 CMD(update_mesh_config, SET_MESH_CONFIG);
1390 CMD(change_bss, SET_BSS);
1391 CMD(auth, AUTHENTICATE);
1392 CMD(assoc, ASSOCIATE);
1393 CMD(deauth, DEAUTHENTICATE);
1394 CMD(disassoc, DISASSOCIATE);
1395 CMD(join_ibss, JOIN_IBSS);
1396 CMD(join_mesh, JOIN_MESH);
1397 CMD(set_pmksa, SET_PMKSA);
1398 CMD(del_pmksa, DEL_PMKSA);
1399 CMD(flush_pmksa, FLUSH_PMKSA);
1400 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1401 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1402 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1403 CMD(mgmt_tx, FRAME);
1404 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1405 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1406 i++;
1407 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1408 goto nla_put_failure;
2e161f78 1409 }
3713b4e3
JB		 1410 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1411 dev->ops->join_mesh) {
1412 i++;
1413 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1414 goto nla_put_failure;
1415 }
1416 CMD(set_wds_peer, SET_WDS_PEER);
1417 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1418 CMD(tdls_mgmt, TDLS_MGMT);
1419 CMD(tdls_oper, TDLS_OPER);
1420 }
1421 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1422 CMD(sched_scan_start, START_SCHED_SCAN);
1423 CMD(probe_client, PROBE_CLIENT);
1424 CMD(set_noack_map, SET_NOACK_MAP);
1425 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1426 i++;
1427 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1428 goto nla_put_failure;
1429 }
1430 CMD(start_p2p_device, START_P2P_DEVICE);
1431 CMD(set_mcast_rate, SET_MCAST_RATE);
86e8cf98 1432 if (state->split) {
5de17984
AS		 1433 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1434 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
16ef1fe2
SW		 1435 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1436 CMD(channel_switch, CHANNEL_SWITCH);
5de17984 1437 }
2e161f78 1438
3713b4e3
JB		 1439#ifdef CONFIG_NL80211_TESTMODE
1440 CMD(testmode_cmd, TESTMODE);
1441#endif
ff1b6e69 1442
3713b4e3 1443#undef CMD
ff1b6e69 1444
3713b4e3
JB		 1445 if (dev->ops->connect || dev->ops->auth) {
1446 i++;
1447 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1448 goto nla_put_failure;
ff1b6e69
JB		 1449 }
1450
3713b4e3
JB		 1451 if (dev->ops->disconnect || dev->ops->deauth) {
1452 i++;
1453 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1454 goto nla_put_failure;
1455 }
1456
1457 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1458 state->split_start++;
1459 if (state->split)
3713b4e3
JB		 1460 break;
1461 case 5:
1462 if (dev->ops->remain_on_channel &&
1463 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1464 nla_put_u32(msg,
1465 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1466 dev->wiphy.max_remain_on_channel_duration))
1467 goto nla_put_failure;
1468
1469 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1470 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1471 goto nla_put_failure;
1472
1473 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1474 goto nla_put_failure;
86e8cf98
JB		 1475 state->split_start++;
1476 if (state->split)
3713b4e3
JB		 1477 break;
1478 case 6:
1479#ifdef CONFIG_PM
86e8cf98 1480 if (nl80211_send_wowlan(msg, dev, state->split))
3713b4e3 1481 goto nla_put_failure;
86e8cf98
JB		 1482 state->split_start++;
1483 if (state->split)
3713b4e3
JB		 1484 break;
1485#else
86e8cf98 1486 state->split_start++;
dfb89c56 1487#endif
3713b4e3
JB		 1488 case 7:
1489 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1490 dev->wiphy.software_iftypes))
1491 goto nla_put_failure;
ff1b6e69 1492
86e8cf98
JB		 1493 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1494 state->split))
3713b4e3 1495 goto nla_put_failure;
7527a782 1496
86e8cf98
JB		 1497 state->split_start++;
1498 if (state->split)
3713b4e3
JB		 1499 break;
1500 case 8:
1501 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1502 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1503 dev->wiphy.ap_sme_capa))
1504 goto nla_put_failure;
7527a782 1505
fe1abafd
JB		 1506 features = dev->wiphy.features;
1507 /*
1508 * We can only add the per-channel limit information if the
1509 * dump is split, otherwise it makes it too big. Therefore
1510 * only advertise it in that case.
1511 */
86e8cf98 1512 if (state->split)
fe1abafd
JB		 1513 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1514 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1515 goto nla_put_failure;
562a7480 1516
3713b4e3
JB		 1517 if (dev->wiphy.ht_capa_mod_mask &&
1518 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1519 sizeof(*dev->wiphy.ht_capa_mod_mask),
1520 dev->wiphy.ht_capa_mod_mask))
1521 goto nla_put_failure;
1f074bd8 1522
3713b4e3
JB		 1523 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1524 dev->wiphy.max_acl_mac_addrs &&
1525 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1526 dev->wiphy.max_acl_mac_addrs))
1527 goto nla_put_failure;
7e7c8926 1528
3713b4e3
JB		 1529 /*
1530 * Any information below this point is only available to
1531 * applications that can deal with it being split. This
1532 * helps ensure that newly added capabilities don't break
1533 * older tools by overrunning their buffers.
1534 *
1535 * We still increment split_start so that in the split
1536 * case we'll continue with more data in the next round,
1537 * but break unconditionally so unsplit data stops here.
1538 */
86e8cf98 1539 state->split_start++;
3713b4e3
JB		 1540 break;
1541 case 9:
fe1abafd
JB		 1542 if (dev->wiphy.extended_capabilities &&
1543 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1544 dev->wiphy.extended_capabilities_len,
1545 dev->wiphy.extended_capabilities) ||
1546 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1547 dev->wiphy.extended_capabilities_len,
1548 dev->wiphy.extended_capabilities_mask)))
1549 goto nla_put_failure;
a50df0c4 1550
ee2aca34
JB		 1551 if (dev->wiphy.vht_capa_mod_mask &&
1552 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1553 sizeof(*dev->wiphy.vht_capa_mod_mask),
1554 dev->wiphy.vht_capa_mod_mask))
1555 goto nla_put_failure;
1556
be29b99a
AK		 1557 state->split_start++;
1558 break;
1559 case 10:
1560 if (nl80211_send_coalesce(msg, dev))
1561 goto nla_put_failure;
1562
3713b4e3 1563 /* done */
86e8cf98 1564 state->split_start = 0;
3713b4e3
JB		 1565 break;
1566 }
55682965
JB		 1567 return genlmsg_end(msg, hdr);
1568
1569 nla_put_failure:
bc3ed28c
TG		 1570 genlmsg_cancel(msg, hdr);
1571 return -EMSGSIZE;
55682965
JB		 1572}
1573
86e8cf98
JB		 1574static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1575 struct netlink_callback *cb,
1576 struct nl80211_dump_wiphy_state *state)
1577{
1578 struct nlattr **tb = nl80211_fam.attrbuf;
1579 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1580 tb, nl80211_fam.maxattr, nl80211_policy);
1581 /* ignore parse errors for backward compatibility */
1582 if (ret)
1583 return 0;
1584
1585 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1586 if (tb[NL80211_ATTR_WIPHY])
1587 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1588 if (tb[NL80211_ATTR_WDEV])
1589 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1590 if (tb[NL80211_ATTR_IFINDEX]) {
1591 struct net_device *netdev;
1592 struct cfg80211_registered_device *rdev;
1593 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1594
1595 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1596 if (!netdev)
1597 return -ENODEV;
1598 if (netdev->ieee80211_ptr) {
1599 rdev = wiphy_to_dev(
1600 netdev->ieee80211_ptr->wiphy);
1601 state->filter_wiphy = rdev->wiphy_idx;
1602 }
1603 dev_put(netdev);
1604 }
1605
1606 return 0;
1607}
1608
55682965
JB		 1609static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1610{
645e77de 1611 int idx = 0, ret;
86e8cf98 1612 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
55682965 1613 struct cfg80211_registered_device *dev;
3a5a423b 1614
5fe231e8 1615 rtnl_lock();
86e8cf98
JB		 1616 if (!state) {
1617 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1618 if (!state) {
1619 rtnl_unlock();
86e8cf98 1620 return -ENOMEM;
3713b4e3 1621 }
86e8cf98
JB		 1622 state->filter_wiphy = -1;
1623 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1624 if (ret) {
1625 kfree(state);
1626 rtnl_unlock();
1627 return ret;
3713b4e3 1628 }
86e8cf98 1629 cb->args[0] = (long)state;
3713b4e3
JB		 1630 }
1631
79c97e97 1632 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1633 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1634 continue;
86e8cf98 1635 if (++idx <= state->start)
55682965 1636 continue;
86e8cf98
JB		 1637 if (state->filter_wiphy != -1 &&
1638 state->filter_wiphy != dev->wiphy_idx)
3713b4e3
JB		 1639 continue;
1640 /* attempt to fit multiple wiphy data chunks into the skb */
1641 do {
1642 ret = nl80211_send_wiphy(dev, skb,
1643 NETLINK_CB(cb->skb).portid,
1644 cb->nlh->nlmsg_seq,
86e8cf98 1645 NLM_F_MULTI, state);
3713b4e3
JB		 1646 if (ret < 0) {
1647 /*
1648 * If sending the wiphy data didn't fit (ENOBUFS
1649 * or EMSGSIZE returned), this SKB is still
1650 * empty (so it's not too big because another
1651 * wiphy dataset is already in the skb) and
1652 * we've not tried to adjust the dump allocation
1653 * yet ... then adjust the alloc size to be
1654 * bigger, and return 1 but with the empty skb.
1655 * This results in an empty message being RX'ed
1656 * in userspace, but that is ignored.
1657 *
1658 * We can then retry with the larger buffer.
1659 */
1660 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1661 !skb->len &&
1662 cb->min_dump_alloc < 4096) {
1663 cb->min_dump_alloc = 4096;
d98cae64 1664 rtnl_unlock();
3713b4e3
JB		 1665 return 1;
1666 }
1667 idx--;
1668 break;
645e77de 1669 }
86e8cf98 1670 } while (state->split_start > 0);
3713b4e3 1671 break;
55682965 1672 }
5fe231e8 1673 rtnl_unlock();
55682965 1674
86e8cf98 1675 state->start = idx;
55682965
JB		 1676
1677 return skb->len;
1678}
1679
86e8cf98
JB		 1680static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1681{
1682 kfree((void *)cb->args[0]);
1683 return 0;
1684}
1685
55682965
JB		 1686static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1687{
1688 struct sk_buff *msg;
4c476991 1689 struct cfg80211_registered_device *dev = info->user_ptr[0];
86e8cf98 1690 struct nl80211_dump_wiphy_state state = {};
55682965 1691
645e77de 1692 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1693 if (!msg)
4c476991 1694 return -ENOMEM;
55682965 1695
3713b4e3 1696 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
86e8cf98 1697 &state) < 0) {
4c476991
JB		 1698 nlmsg_free(msg);
1699 return -ENOBUFS;
1700 }
55682965 1701
134e6375 1702 return genlmsg_reply(msg, info);
55682965
JB		 1703}
1704
31888487
JM		 1705static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1706 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1707 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1708 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1709 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1710 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1711};
1712
1713static int parse_txq_params(struct nlattr *tb[],
1714 struct ieee80211_txq_params *txq_params)
1715{
a3304b0a 1716 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1717 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1718 !tb[NL80211_TXQ_ATTR_AIFS])
1719 return -EINVAL;
1720
a3304b0a 1721 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1722 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1723 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1724 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1725 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1726
a3304b0a
JB		 1727 if (txq_params->ac >= NL80211_NUM_ACS)
1728 return -EINVAL;
1729
31888487
JM		 1730 return 0;
1731}
1732
f444de05
JB		 1733static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1734{
1735 /*
cc1d2806
JB		 1736 * You can only set the channel explicitly for WDS interfaces,
1737 * all others have their channel managed via their respective
1738 * "establish a connection" command (connect, join, ...)
1739 *
1740 * For AP/GO and mesh mode, the channel can be set with the
1741 * channel userspace API, but is only stored and passed to the
1742 * low-level driver when the AP starts or the mesh is joined.
1743 * This is for backward compatibility, userspace can also give
1744 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1745 *
1746 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1747 * whatever else is going on, so they have their own special
1748 * operation to set the monitor channel if possible.
f444de05
JB		 1749 */
1750 return !wdev ||
1751 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1752 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1753 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1754 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1755}
1756
683b6d3b
JB		 1757static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1758 struct genl_info *info,
1759 struct cfg80211_chan_def *chandef)
1760{
dbeca2ea 1761 u32 control_freq;
683b6d3b
JB		 1762
1763 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1764 return -EINVAL;
1765
1766 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1767
1768 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1769 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1770 chandef->center_freq1 = control_freq;
1771 chandef->center_freq2 = 0;
683b6d3b
JB		 1772
1773 /* Primary channel not allowed */
1774 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1775 return -EINVAL;
1776
3d9d1d66
JB		 1777 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1778 enum nl80211_channel_type chantype;
1779
1780 chantype = nla_get_u32(
1781 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1782
1783 switch (chantype) {
1784 case NL80211_CHAN_NO_HT:
1785 case NL80211_CHAN_HT20:
1786 case NL80211_CHAN_HT40PLUS:
1787 case NL80211_CHAN_HT40MINUS:
1788 cfg80211_chandef_create(chandef, chandef->chan,
1789 chantype);
1790 break;
1791 default:
1792 return -EINVAL;
1793 }
1794 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1795 chandef->width =
1796 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1797 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1798 chandef->center_freq1 =
1799 nla_get_u32(
1800 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1801 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1802 chandef->center_freq2 =
1803 nla_get_u32(
1804 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1805 }
1806
9f5e8f6e 1807 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1808 return -EINVAL;
1809
9f5e8f6e
JB		 1810 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1811 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1812 return -EINVAL;
1813
2f301ab2
SW		 1814 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1815 chandef->width == NL80211_CHAN_WIDTH_10) &&
1816 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1817 return -EINVAL;
1818
683b6d3b
JB		 1819 return 0;
1820}
1821
f444de05
JB		 1822static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1823 struct wireless_dev *wdev,
1824 struct genl_info *info)
1825{
683b6d3b 1826 struct cfg80211_chan_def chandef;
f444de05 1827 int result;
e8c9bd5b
JB		 1828 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1829
1830 if (wdev)
1831 iftype = wdev->iftype;
f444de05 1832
f444de05
JB		 1833 if (!nl80211_can_set_dev_channel(wdev))
1834 return -EOPNOTSUPP;
1835
683b6d3b
JB		 1836 result = nl80211_parse_chandef(rdev, info, &chandef);
1837 if (result)
1838 return result;
f444de05 1839
e8c9bd5b 1840 switch (iftype) {
aa430da4
JB		 1841 case NL80211_IFTYPE_AP:
1842 case NL80211_IFTYPE_P2P_GO:
1843 if (wdev->beacon_interval) {
1844 result = -EBUSY;
1845 break;
1846 }
683b6d3b 1847 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1848 result = -EINVAL;
1849 break;
1850 }
683b6d3b 1851 wdev->preset_chandef = chandef;
aa430da4
JB		 1852 result = 0;
1853 break;
cc1d2806 1854 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1855 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1856 break;
e8c9bd5b 1857 case NL80211_IFTYPE_MONITOR:
683b6d3b 1858 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1859 break;
aa430da4 1860 default:
e8c9bd5b 1861 result = -EINVAL;
f444de05 1862 }
f444de05
JB		 1863
1864 return result;
1865}
1866
1867static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1868{
4c476991
JB		 1869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1870 struct net_device *netdev = info->user_ptr[1];
f444de05 1871
4c476991 1872 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1873}
1874
e8347eba
BJ		 1875static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1876{
43b19952
JB		 1877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1878 struct net_device *dev = info->user_ptr[1];
1879 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1880 const u8 *bssid;
e8347eba
BJ		 1881
1882 if (!info->attrs[NL80211_ATTR_MAC])
1883 return -EINVAL;
1884
43b19952
JB		 1885 if (netif_running(dev))
1886 return -EBUSY;
e8347eba 1887
43b19952
JB		 1888 if (!rdev->ops->set_wds_peer)
1889 return -EOPNOTSUPP;
e8347eba 1890
43b19952
JB		 1891 if (wdev->iftype != NL80211_IFTYPE_WDS)
1892 return -EOPNOTSUPP;
e8347eba
BJ		 1893
1894 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1895 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1896}
1897
1898
55682965
JB		 1899static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1900{
1901 struct cfg80211_registered_device *rdev;
f444de05
JB		 1902 struct net_device *netdev = NULL;
1903 struct wireless_dev *wdev;
a1e567c8 1904 int result = 0, rem_txq_params = 0;
31888487 1905 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1906 u32 changed;
1907 u8 retry_short = 0, retry_long = 0;
1908 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1909 u8 coverage_class = 0;
55682965 1910
5fe231e8
JB		 1911 ASSERT_RTNL();
1912
f444de05
JB		 1913 /*
1914 * Try to find the wiphy and netdev. Normally this
1915 * function shouldn't need the netdev, but this is
1916 * done for backward compatibility -- previously
1917 * setting the channel was done per wiphy, but now
1918 * it is per netdev. Previous userland like hostapd
1919 * also passed a netdev to set_wiphy, so that it is
1920 * possible to let that go to the right netdev!
1921 */
4bbf4d56 1922
f444de05
JB		 1923 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1924 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1925
1926 netdev = dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 1927 if (netdev && netdev->ieee80211_ptr)
f444de05 1928 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
5fe231e8 1929 else
f444de05 1930 netdev = NULL;
4bbf4d56
JB		 1931 }
1932
f444de05 1933 if (!netdev) {
878d9ec7
JB		 1934 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1935 info->attrs);
5fe231e8 1936 if (IS_ERR(rdev))
4c476991 1937 return PTR_ERR(rdev);
f444de05
JB		 1938 wdev = NULL;
1939 netdev = NULL;
1940 result = 0;
71fe96bf 1941 } else
f444de05 1942 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1943
1944 /*
1945 * end workaround code, by now the rdev is available
1946 * and locked, and wdev may or may not be NULL.
1947 */
4bbf4d56
JB		 1948
1949 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1950 result = cfg80211_dev_rename(
1951 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 1952
4bbf4d56
JB		 1953 if (result)
1954 goto bad_res;
31888487
JM		 1955
1956 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1957 struct ieee80211_txq_params txq_params;
1958 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1959
1960 if (!rdev->ops->set_txq_params) {
1961 result = -EOPNOTSUPP;
1962 goto bad_res;
1963 }
1964
f70f01c2
EP		 1965 if (!netdev) {
1966 result = -EINVAL;
1967 goto bad_res;
1968 }
1969
133a3ff2
JB		 1970 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1971 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1972 result = -EINVAL;
1973 goto bad_res;
1974 }
1975
2b5f8b0b
JB		 1976 if (!netif_running(netdev)) {
1977 result = -ENETDOWN;
1978 goto bad_res;
1979 }
1980
31888487
JM		 1981 nla_for_each_nested(nl_txq_params,
1982 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1983 rem_txq_params) {
1984 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1985 nla_data(nl_txq_params),
1986 nla_len(nl_txq_params),
1987 txq_params_policy);
1988 result = parse_txq_params(tb, &txq_params);
1989 if (result)
1990 goto bad_res;
1991
e35e4d28
HG		 1992 result = rdev_set_txq_params(rdev, netdev,
1993 &txq_params);
31888487
JM		 1994 if (result)
1995 goto bad_res;
1996 }
1997 }
55682965 1998
72bdcf34 1999 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 2000 result = __nl80211_set_channel(rdev,
2001 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2002 info);
72bdcf34
JM		 2003 if (result)
2004 goto bad_res;
2005 }
2006
98d2ff8b 2007 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2008 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2009 enum nl80211_tx_power_setting type;
2010 int idx, mbm = 0;
2011
c8442118
JB		 2012 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2013 txp_wdev = NULL;
2014
98d2ff8b 2015 if (!rdev->ops->set_tx_power) {
60ea385f 2016 result = -EOPNOTSUPP;
98d2ff8b
JO		 2017 goto bad_res;
2018 }
2019
2020 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2021 type = nla_get_u32(info->attrs[idx]);
2022
2023 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2024 (type != NL80211_TX_POWER_AUTOMATIC)) {
2025 result = -EINVAL;
2026 goto bad_res;
2027 }
2028
2029 if (type != NL80211_TX_POWER_AUTOMATIC) {
2030 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2031 mbm = nla_get_u32(info->attrs[idx]);
2032 }
2033
c8442118 2034 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 2035 if (result)
2036 goto bad_res;
2037 }
2038
afe0cbf8
BR		 2039 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2040 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2041 u32 tx_ant, rx_ant;
7f531e03
BR		 2042 if ((!rdev->wiphy.available_antennas_tx &&
2043 !rdev->wiphy.available_antennas_rx) ||
2044 !rdev->ops->set_antenna) {
afe0cbf8
BR		 2045 result = -EOPNOTSUPP;
2046 goto bad_res;
2047 }
2048
2049 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2050 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2051
a7ffac95 2052 /* reject antenna configurations which don't match the
7f531e03
BR		 2053 * available antenna masks, except for the "all" mask */
2054 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2055 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 2056 result = -EINVAL;
2057 goto bad_res;
2058 }
2059
7f531e03
BR		 2060 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2061 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2062
e35e4d28 2063 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 2064 if (result)
2065 goto bad_res;
2066 }
2067
b9a5f8ca
JM		 2068 changed = 0;
2069
2070 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2071 retry_short = nla_get_u8(
2072 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2073 if (retry_short == 0) {
2074 result = -EINVAL;
2075 goto bad_res;
2076 }
2077 changed |= WIPHY_PARAM_RETRY_SHORT;
2078 }
2079
2080 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2081 retry_long = nla_get_u8(
2082 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2083 if (retry_long == 0) {
2084 result = -EINVAL;
2085 goto bad_res;
2086 }
2087 changed |= WIPHY_PARAM_RETRY_LONG;
2088 }
2089
2090 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2091 frag_threshold = nla_get_u32(
2092 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2093 if (frag_threshold < 256) {
2094 result = -EINVAL;
2095 goto bad_res;
2096 }
2097 if (frag_threshold != (u32) -1) {
2098 /*
2099 * Fragments (apart from the last one) are required to
2100 * have even length. Make the fragmentation code
2101 * simpler by stripping LSB should someone try to use
2102 * odd threshold value.
2103 */
2104 frag_threshold &= ~0x1;
2105 }
2106 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2107 }
2108
2109 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2110 rts_threshold = nla_get_u32(
2111 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2112 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2113 }
2114
81077e82
LT		 2115 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2116 coverage_class = nla_get_u8(
2117 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2118 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2119 }
2120
b9a5f8ca
JM		 2121 if (changed) {
2122 u8 old_retry_short, old_retry_long;
2123 u32 old_frag_threshold, old_rts_threshold;
81077e82 2124 u8 old_coverage_class;
b9a5f8ca
JM		 2125
2126 if (!rdev->ops->set_wiphy_params) {
2127 result = -EOPNOTSUPP;
2128 goto bad_res;
2129 }
2130
2131 old_retry_short = rdev->wiphy.retry_short;
2132 old_retry_long = rdev->wiphy.retry_long;
2133 old_frag_threshold = rdev->wiphy.frag_threshold;
2134 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2135 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2136
2137 if (changed & WIPHY_PARAM_RETRY_SHORT)
2138 rdev->wiphy.retry_short = retry_short;
2139 if (changed & WIPHY_PARAM_RETRY_LONG)
2140 rdev->wiphy.retry_long = retry_long;
2141 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2142 rdev->wiphy.frag_threshold = frag_threshold;
2143 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2144 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2145 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2146 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2147
e35e4d28 2148 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2149 if (result) {
2150 rdev->wiphy.retry_short = old_retry_short;
2151 rdev->wiphy.retry_long = old_retry_long;
2152 rdev->wiphy.frag_threshold = old_frag_threshold;
2153 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2154 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2155 }
2156 }
72bdcf34 2157
306d6112 2158 bad_res:
f444de05
JB		 2159 if (netdev)
2160 dev_put(netdev);
55682965
JB		 2161 return result;
2162}
2163
71bbc994
JB		 2164static inline u64 wdev_id(struct wireless_dev *wdev)
2165{
2166 return (u64)wdev->identifier |
2167 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2168}
55682965 2169
683b6d3b 2170static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2171 const struct cfg80211_chan_def *chandef)
683b6d3b 2172{
9f5e8f6e 2173 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2174
683b6d3b
JB		 2175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2176 chandef->chan->center_freq))
2177 return -ENOBUFS;
3d9d1d66
JB		 2178 switch (chandef->width) {
2179 case NL80211_CHAN_WIDTH_20_NOHT:
2180 case NL80211_CHAN_WIDTH_20:
2181 case NL80211_CHAN_WIDTH_40:
2182 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2183 cfg80211_get_chandef_type(chandef)))
2184 return -ENOBUFS;
2185 break;
2186 default:
2187 break;
2188 }
2189 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2190 return -ENOBUFS;
2191 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2192 return -ENOBUFS;
2193 if (chandef->center_freq2 &&
2194 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2195 return -ENOBUFS;
2196 return 0;
2197}
2198
15e47304 2199static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2200 struct cfg80211_registered_device *rdev,
72fb2abc 2201 struct wireless_dev *wdev)
55682965 2202{
72fb2abc 2203 struct net_device *dev = wdev->netdev;
55682965
JB		 2204 void *hdr;
2205
15e47304 2206 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2207 if (!hdr)
2208 return -1;
2209
72fb2abc
JB		 2210 if (dev &&
2211 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2212 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2213 goto nla_put_failure;
2214
2215 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2216 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2217 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2218 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2219 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2220 rdev->devlist_generation ^
2221 (cfg80211_rdev_list_generation << 2)))
2222 goto nla_put_failure;
f5ea9120 2223
5b7ccaf3 2224 if (rdev->ops->get_channel) {
683b6d3b
JB		 2225 int ret;
2226 struct cfg80211_chan_def chandef;
2227
2228 ret = rdev_get_channel(rdev, wdev, &chandef);
2229 if (ret == 0) {
2230 if (nl80211_send_chandef(msg, &chandef))
2231 goto nla_put_failure;
2232 }
d91df0e3
PF		 2233 }
2234
b84e7a05
AQ		 2235 if (wdev->ssid_len) {
2236 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2237 goto nla_put_failure;
2238 }
2239
55682965
JB		 2240 return genlmsg_end(msg, hdr);
2241
2242 nla_put_failure:
bc3ed28c
TG		 2243 genlmsg_cancel(msg, hdr);
2244 return -EMSGSIZE;
55682965
JB		 2245}
2246
2247static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2248{
2249 int wp_idx = 0;
2250 int if_idx = 0;
2251 int wp_start = cb->args[0];
2252 int if_start = cb->args[1];
f5ea9120 2253 struct cfg80211_registered_device *rdev;
55682965
JB		 2254 struct wireless_dev *wdev;
2255
5fe231e8 2256 rtnl_lock();
f5ea9120
JB		 2257 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2258 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2259 continue;
bba95fef
JB		 2260 if (wp_idx < wp_start) {
2261 wp_idx++;
55682965 2262 continue;
bba95fef 2263 }
55682965
JB		 2264 if_idx = 0;
2265
89a54e48 2266 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2267 if (if_idx < if_start) {
2268 if_idx++;
55682965 2269 continue;
bba95fef 2270 }
15e47304 2271 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2272 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2273 rdev, wdev) < 0) {
bba95fef
JB		 2274 goto out;
2275 }
2276 if_idx++;
55682965 2277 }
bba95fef
JB		 2278
2279 wp_idx++;
55682965 2280 }
bba95fef 2281 out:
5fe231e8 2282 rtnl_unlock();
55682965
JB		 2283
2284 cb->args[0] = wp_idx;
2285 cb->args[1] = if_idx;
2286
2287 return skb->len;
2288}
2289
2290static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2291{
2292 struct sk_buff *msg;
4c476991 2293 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2294 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2295
fd2120ca 2296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2297 if (!msg)
4c476991 2298 return -ENOMEM;
55682965 2299
15e47304 2300 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2301 dev, wdev) < 0) {
4c476991
JB		 2302 nlmsg_free(msg);
2303 return -ENOBUFS;
2304 }
55682965 2305
134e6375 2306 return genlmsg_reply(msg, info);
55682965
JB		 2307}
2308
66f7ac50
MW		 2309static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2310 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2311 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2312 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2313 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2314 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2315 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2316};
2317
2318static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2319{
2320 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2321 int flag;
2322
2323 *mntrflags = 0;
2324
2325 if (!nla)
2326 return -EINVAL;
2327
2328 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2329 nla, mntr_flags_policy))
2330 return -EINVAL;
2331
2332 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2333 if (flags[flag])
2334 *mntrflags |= (1<<flag);
2335
2336 return 0;
2337}
2338
9bc383de 2339static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2340 struct net_device *netdev, u8 use_4addr,
2341 enum nl80211_iftype iftype)
9bc383de 2342{
ad4bb6f8 2343 if (!use_4addr) {
f350a0a8 2344 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2345 return -EBUSY;
9bc383de 2346 return 0;
ad4bb6f8 2347 }
9bc383de
JB		 2348
2349 switch (iftype) {
2350 case NL80211_IFTYPE_AP_VLAN:
2351 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2352 return 0;
2353 break;
2354 case NL80211_IFTYPE_STATION:
2355 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2356 return 0;
2357 break;
2358 default:
2359 break;
2360 }
2361
2362 return -EOPNOTSUPP;
2363}
2364
55682965
JB		 2365static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2366{
4c476991 2367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2368 struct vif_params params;
e36d56b6 2369 int err;
04a773ad 2370 enum nl80211_iftype otype, ntype;
4c476991 2371 struct net_device *dev = info->user_ptr[1];
92ffe055 2372 u32 _flags, *flags = NULL;
ac7f9cfa 2373 bool change = false;
55682965 2374
2ec600d6
LCC		 2375 memset(&params, 0, sizeof(params));
2376
04a773ad 2377 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2378
723b038d 2379 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2380 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2381 if (otype != ntype)
ac7f9cfa 2382 change = true;
4c476991
JB		 2383 if (ntype > NL80211_IFTYPE_MAX)
2384 return -EINVAL;
723b038d
JB		 2385 }
2386
92ffe055 2387 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2388 struct wireless_dev *wdev = dev->ieee80211_ptr;
2389
4c476991
JB		 2390 if (ntype != NL80211_IFTYPE_MESH_POINT)
2391 return -EINVAL;
29cbe68c
JB		 2392 if (netif_running(dev))
2393 return -EBUSY;
2394
2395 wdev_lock(wdev);
2396 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2397 IEEE80211_MAX_MESH_ID_LEN);
2398 wdev->mesh_id_up_len =
2399 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2400 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2401 wdev->mesh_id_up_len);
2402 wdev_unlock(wdev);
2ec600d6
LCC		 2403 }
2404
8b787643
FF		 2405 if (info->attrs[NL80211_ATTR_4ADDR]) {
2406 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2407 change = true;
ad4bb6f8 2408 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2409 if (err)
4c476991 2410 return err;
8b787643
FF		 2411 } else {
2412 params.use_4addr = -1;
2413 }
2414
92ffe055 2415 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2416 if (ntype != NL80211_IFTYPE_MONITOR)
2417 return -EINVAL;
92ffe055
JB		 2418 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2419 &_flags);
ac7f9cfa 2420 if (err)
4c476991 2421 return err;
ac7f9cfa
JB		 2422
2423 flags = &_flags;
2424 change = true;
92ffe055 2425 }
3b85875a 2426
18003297 2427 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2428 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2429 return -EOPNOTSUPP;
2430
ac7f9cfa 2431 if (change)
3d54d255 2432 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2433 else
2434 err = 0;
60719ffd 2435
9bc383de
JB		 2436 if (!err && params.use_4addr != -1)
2437 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2438
55682965
JB		 2439 return err;
2440}
2441
2442static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2443{
4c476991 2444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2445 struct vif_params params;
84efbb84 2446 struct wireless_dev *wdev;
1c90f9d4 2447 struct sk_buff *msg;
55682965
JB		 2448 int err;
2449 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2450 u32 flags;
55682965 2451
2ec600d6
LCC		 2452 memset(&params, 0, sizeof(params));
2453
55682965
JB		 2454 if (!info->attrs[NL80211_ATTR_IFNAME])
2455 return -EINVAL;
2456
2457 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2458 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2459 if (type > NL80211_IFTYPE_MAX)
2460 return -EINVAL;
2461 }
2462
79c97e97 2463 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2464 !(rdev->wiphy.interface_modes & (1 << type)))
2465 return -EOPNOTSUPP;
55682965 2466
1c18f145
AS		 2467 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2468 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2469 ETH_ALEN);
2470 if (!is_valid_ether_addr(params.macaddr))
2471 return -EADDRNOTAVAIL;
2472 }
2473
9bc383de 2474 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2475 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2476 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2477 if (err)
4c476991 2478 return err;
9bc383de 2479 }
8b787643 2480
1c90f9d4
JB		 2481 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2482 if (!msg)
2483 return -ENOMEM;
2484
66f7ac50
MW		 2485 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2486 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2487 &flags);
e057d3c3 2488
18003297 2489 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2490 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2491 return -EOPNOTSUPP;
2492
e35e4d28
HG		 2493 wdev = rdev_add_virtual_intf(rdev,
2494 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2495 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2496 if (IS_ERR(wdev)) {
2497 nlmsg_free(msg);
84efbb84 2498 return PTR_ERR(wdev);
1c90f9d4 2499 }
2ec600d6 2500
98104fde
JB		 2501 switch (type) {
2502 case NL80211_IFTYPE_MESH_POINT:
2503 if (!info->attrs[NL80211_ATTR_MESH_ID])
2504 break;
29cbe68c
JB		 2505 wdev_lock(wdev);
2506 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2507 IEEE80211_MAX_MESH_ID_LEN);
2508 wdev->mesh_id_up_len =
2509 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2510 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2511 wdev->mesh_id_up_len);
2512 wdev_unlock(wdev);
98104fde
JB		 2513 break;
2514 case NL80211_IFTYPE_P2P_DEVICE:
2515 /*
2516 * P2P Device doesn't have a netdev, so doesn't go
2517 * through the netdev notifier and must be added here
2518 */
2519 mutex_init(&wdev->mtx);
2520 INIT_LIST_HEAD(&wdev->event_list);
2521 spin_lock_init(&wdev->event_lock);
2522 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2523 spin_lock_init(&wdev->mgmt_registrations_lock);
2524
98104fde
JB		 2525 wdev->identifier = ++rdev->wdev_id;
2526 list_add_rcu(&wdev->list, &rdev->wdev_list);
2527 rdev->devlist_generation++;
98104fde
JB		 2528 break;
2529 default:
2530 break;
29cbe68c
JB		 2531 }
2532
15e47304 2533 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2534 rdev, wdev) < 0) {
2535 nlmsg_free(msg);
2536 return -ENOBUFS;
2537 }
2538
2539 return genlmsg_reply(msg, info);
55682965
JB		 2540}
2541
2542static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2543{
4c476991 2544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2545 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2546
4c476991
JB		 2547 if (!rdev->ops->del_virtual_intf)
2548 return -EOPNOTSUPP;
55682965 2549
84efbb84
JB		 2550 /*
2551 * If we remove a wireless device without a netdev then clear
2552 * user_ptr[1] so that nl80211_post_doit won't dereference it
2553 * to check if it needs to do dev_put(). Otherwise it crashes
2554 * since the wdev has been freed, unlike with a netdev where
2555 * we need the dev_put() for the netdev to really be freed.
2556 */
2557 if (!wdev->netdev)
2558 info->user_ptr[1] = NULL;
2559
e35e4d28 2560 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2561}
2562
1d9d9213
SW		 2563static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2564{
2565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2566 struct net_device *dev = info->user_ptr[1];
2567 u16 noack_map;
2568
2569 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2570 return -EINVAL;
2571
2572 if (!rdev->ops->set_noack_map)
2573 return -EOPNOTSUPP;
2574
2575 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2576
e35e4d28 2577 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2578}
2579
41ade00f
JB		 2580struct get_key_cookie {
2581 struct sk_buff *msg;
2582 int error;
b9454e83 2583 int idx;
41ade00f
JB		 2584};
2585
2586static void get_key_callback(void *c, struct key_params *params)
2587{
b9454e83 2588 struct nlattr *key;
41ade00f
JB		 2589 struct get_key_cookie *cookie = c;
2590
9360ffd1
DM		 2591 if ((params->key &&
2592 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2593 params->key_len, params->key)) ||
2594 (params->seq &&
2595 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2596 params->seq_len, params->seq)) ||
2597 (params->cipher &&
2598 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2599 params->cipher)))
2600 goto nla_put_failure;
41ade00f 2601
b9454e83
JB		 2602 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2603 if (!key)
2604 goto nla_put_failure;
2605
9360ffd1
DM		 2606 if ((params->key &&
2607 nla_put(cookie->msg, NL80211_KEY_DATA,
2608 params->key_len, params->key)) ||
2609 (params->seq &&
2610 nla_put(cookie->msg, NL80211_KEY_SEQ,
2611 params->seq_len, params->seq)) ||
2612 (params->cipher &&
2613 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2614 params->cipher)))
2615 goto nla_put_failure;
b9454e83 2616
9360ffd1
DM		 2617 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2618 goto nla_put_failure;
b9454e83
JB		 2619
2620 nla_nest_end(cookie->msg, key);
2621
41ade00f
JB		 2622 return;
2623 nla_put_failure:
2624 cookie->error = 1;
2625}
2626
2627static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2628{
4c476991 2629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2630 int err;
4c476991 2631 struct net_device *dev = info->user_ptr[1];
41ade00f 2632 u8 key_idx = 0;
e31b8213
JB		 2633 const u8 *mac_addr = NULL;
2634 bool pairwise;
41ade00f
JB		 2635 struct get_key_cookie cookie = {
2636 .error = 0,
2637 };
2638 void *hdr;
2639 struct sk_buff *msg;
2640
2641 if (info->attrs[NL80211_ATTR_KEY_IDX])
2642 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2643
3cfcf6ac 2644 if (key_idx > 5)
41ade00f
JB		 2645 return -EINVAL;
2646
2647 if (info->attrs[NL80211_ATTR_MAC])
2648 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2649
e31b8213
JB		 2650 pairwise = !!mac_addr;
2651 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2652 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2653 if (kt >= NUM_NL80211_KEYTYPES)
2654 return -EINVAL;
2655 if (kt != NL80211_KEYTYPE_GROUP &&
2656 kt != NL80211_KEYTYPE_PAIRWISE)
2657 return -EINVAL;
2658 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2659 }
2660
4c476991
JB		 2661 if (!rdev->ops->get_key)
2662 return -EOPNOTSUPP;
41ade00f 2663
fd2120ca 2664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2665 if (!msg)
2666 return -ENOMEM;
41ade00f 2667
15e47304 2668 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2669 NL80211_CMD_NEW_KEY);
cb35fba3
DC		 2670 if (!hdr)
2671 return -ENOBUFS;
41ade00f
JB		 2672
2673 cookie.msg = msg;
b9454e83 2674 cookie.idx = key_idx;
41ade00f 2675
9360ffd1
DM		 2676 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2677 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2678 goto nla_put_failure;
2679 if (mac_addr &&
2680 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2681 goto nla_put_failure;
41ade00f 2682
e31b8213
JB		 2683 if (pairwise && mac_addr &&
2684 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2685 return -ENOENT;
2686
e35e4d28
HG		 2687 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2688 get_key_callback);
41ade00f
JB		 2689
2690 if (err)
6c95e2a2 2691 goto free_msg;
41ade00f
JB		 2692
2693 if (cookie.error)
2694 goto nla_put_failure;
2695
2696 genlmsg_end(msg, hdr);
4c476991 2697 return genlmsg_reply(msg, info);
41ade00f
JB		 2698
2699 nla_put_failure:
2700 err = -ENOBUFS;
6c95e2a2 2701 free_msg:
41ade00f 2702 nlmsg_free(msg);
41ade00f
JB		 2703 return err;
2704}
2705
2706static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2707{
4c476991 2708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2709 struct key_parse key;
41ade00f 2710 int err;
4c476991 2711 struct net_device *dev = info->user_ptr[1];
41ade00f 2712
b9454e83
JB		 2713 err = nl80211_parse_key(info, &key);
2714 if (err)
2715 return err;
41ade00f 2716
b9454e83 2717 if (key.idx < 0)
41ade00f
JB		 2718 return -EINVAL;
2719
b9454e83
JB		 2720 /* only support setting default key */
2721 if (!key.def && !key.defmgmt)
41ade00f
JB		 2722 return -EINVAL;
2723
dbd2fd65 2724 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2725
dbd2fd65
JB		 2726 if (key.def) {
2727 if (!rdev->ops->set_default_key) {
2728 err = -EOPNOTSUPP;
2729 goto out;
2730 }
41ade00f 2731
dbd2fd65
JB		 2732 err = nl80211_key_allowed(dev->ieee80211_ptr);
2733 if (err)
2734 goto out;
2735
e35e4d28 2736 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2737 key.def_uni, key.def_multi);
2738
2739 if (err)
2740 goto out;
fffd0934 2741
3d23e349 2742#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2743 dev->ieee80211_ptr->wext.default_key = key.idx;
2744#endif
2745 } else {
2746 if (key.def_uni || !key.def_multi) {
2747 err = -EINVAL;
2748 goto out;
2749 }
2750
2751 if (!rdev->ops->set_default_mgmt_key) {
2752 err = -EOPNOTSUPP;
2753 goto out;
2754 }
2755
2756 err = nl80211_key_allowed(dev->ieee80211_ptr);
2757 if (err)
2758 goto out;
2759
e35e4d28 2760 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2761 if (err)
2762 goto out;
2763
2764#ifdef CONFIG_CFG80211_WEXT
2765 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2766#endif
dbd2fd65
JB		 2767 }
2768
2769 out:
fffd0934 2770 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2771
41ade00f
JB		 2772 return err;
2773}
2774
2775static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2776{
4c476991 2777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2778 int err;
4c476991 2779 struct net_device *dev = info->user_ptr[1];
b9454e83 2780 struct key_parse key;
e31b8213 2781 const u8 *mac_addr = NULL;
41ade00f 2782
b9454e83
JB		 2783 err = nl80211_parse_key(info, &key);
2784 if (err)
2785 return err;
41ade00f 2786
b9454e83 2787 if (!key.p.key)
41ade00f
JB		 2788 return -EINVAL;
2789
41ade00f
JB		 2790 if (info->attrs[NL80211_ATTR_MAC])
2791 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2792
e31b8213
JB		 2793 if (key.type == -1) {
2794 if (mac_addr)
2795 key.type = NL80211_KEYTYPE_PAIRWISE;
2796 else
2797 key.type = NL80211_KEYTYPE_GROUP;
2798 }
2799
2800 /* for now */
2801 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2802 key.type != NL80211_KEYTYPE_GROUP)
2803 return -EINVAL;
2804
4c476991
JB		 2805 if (!rdev->ops->add_key)
2806 return -EOPNOTSUPP;
25e47c18 2807
e31b8213
JB		 2808 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2809 key.type == NL80211_KEYTYPE_PAIRWISE,
2810 mac_addr))
4c476991 2811 return -EINVAL;
41ade00f 2812
fffd0934
JB		 2813 wdev_lock(dev->ieee80211_ptr);
2814 err = nl80211_key_allowed(dev->ieee80211_ptr);
2815 if (!err)
e35e4d28
HG		 2816 err = rdev_add_key(rdev, dev, key.idx,
2817 key.type == NL80211_KEYTYPE_PAIRWISE,
2818 mac_addr, &key.p);
fffd0934 2819 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2820
41ade00f
JB		 2821 return err;
2822}
2823
2824static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2825{
4c476991 2826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2827 int err;
4c476991 2828 struct net_device *dev = info->user_ptr[1];
41ade00f 2829 u8 *mac_addr = NULL;
b9454e83 2830 struct key_parse key;
41ade00f 2831
b9454e83
JB		 2832 err = nl80211_parse_key(info, &key);
2833 if (err)
2834 return err;
41ade00f
JB		 2835
2836 if (info->attrs[NL80211_ATTR_MAC])
2837 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2838
e31b8213
JB		 2839 if (key.type == -1) {
2840 if (mac_addr)
2841 key.type = NL80211_KEYTYPE_PAIRWISE;
2842 else
2843 key.type = NL80211_KEYTYPE_GROUP;
2844 }
2845
2846 /* for now */
2847 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2848 key.type != NL80211_KEYTYPE_GROUP)
2849 return -EINVAL;
2850
4c476991
JB		 2851 if (!rdev->ops->del_key)
2852 return -EOPNOTSUPP;
41ade00f 2853
fffd0934
JB		 2854 wdev_lock(dev->ieee80211_ptr);
2855 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2856
2857 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2858 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2859 err = -ENOENT;
2860
fffd0934 2861 if (!err)
e35e4d28
HG		 2862 err = rdev_del_key(rdev, dev, key.idx,
2863 key.type == NL80211_KEYTYPE_PAIRWISE,
2864 mac_addr);
41ade00f 2865
3d23e349 2866#ifdef CONFIG_CFG80211_WEXT
08645126 2867 if (!err) {
b9454e83 2868 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2869 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2870 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2871 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2872 }
2873#endif
fffd0934 2874 wdev_unlock(dev->ieee80211_ptr);
08645126 2875
41ade00f
JB		 2876 return err;
2877}
2878
77765eaf
VT		 2879/* This function returns an error or the number of nested attributes */
2880static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2881{
2882 struct nlattr *attr;
2883 int n_entries = 0, tmp;
2884
2885 nla_for_each_nested(attr, nl_attr, tmp) {
2886 if (nla_len(attr) != ETH_ALEN)
2887 return -EINVAL;
2888
2889 n_entries++;
2890 }
2891
2892 return n_entries;
2893}
2894
2895/*
2896 * This function parses ACL information and allocates memory for ACL data.
2897 * On successful return, the calling function is responsible to free the
2898 * ACL buffer returned by this function.
2899 */
2900static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2901 struct genl_info *info)
2902{
2903 enum nl80211_acl_policy acl_policy;
2904 struct nlattr *attr;
2905 struct cfg80211_acl_data *acl;
2906 int i = 0, n_entries, tmp;
2907
2908 if (!wiphy->max_acl_mac_addrs)
2909 return ERR_PTR(-EOPNOTSUPP);
2910
2911 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2912 return ERR_PTR(-EINVAL);
2913
2914 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2915 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2916 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2917 return ERR_PTR(-EINVAL);
2918
2919 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2920 return ERR_PTR(-EINVAL);
2921
2922 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2923 if (n_entries < 0)
2924 return ERR_PTR(n_entries);
2925
2926 if (n_entries > wiphy->max_acl_mac_addrs)
2927 return ERR_PTR(-ENOTSUPP);
2928
2929 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2930 GFP_KERNEL);
2931 if (!acl)
2932 return ERR_PTR(-ENOMEM);
2933
2934 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2935 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2936 i++;
2937 }
2938
2939 acl->n_acl_entries = n_entries;
2940 acl->acl_policy = acl_policy;
2941
2942 return acl;
2943}
2944
2945static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2946{
2947 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2948 struct net_device *dev = info->user_ptr[1];
2949 struct cfg80211_acl_data *acl;
2950 int err;
2951
2952 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2953 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2954 return -EOPNOTSUPP;
2955
2956 if (!dev->ieee80211_ptr->beacon_interval)
2957 return -EINVAL;
2958
2959 acl = parse_acl_data(&rdev->wiphy, info);
2960 if (IS_ERR(acl))
2961 return PTR_ERR(acl);
2962
2963 err = rdev_set_mac_acl(rdev, dev, acl);
2964
2965 kfree(acl);
2966
2967 return err;
2968}
2969
a1193be8 2970static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 2971 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2972{
8860020e 2973 bool haveinfo = false;
ed1b6cc7 2974
a1193be8
SW		 2975 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2976 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2977 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2978 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2979 return -EINVAL;
2980
8860020e 2981 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2982
a1193be8
SW		 2983 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
2984 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
2985 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 2986 if (!bcn->head_len)
2987 return -EINVAL;
2988 haveinfo = true;
ed1b6cc7
JB		 2989 }
2990
a1193be8
SW		 2991 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
2992 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
2993 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2994 haveinfo = true;
ed1b6cc7
JB		 2995 }
2996
4c476991
JB		 2997 if (!haveinfo)
2998 return -EINVAL;
3b85875a 2999
a1193be8
SW		 3000 if (attrs[NL80211_ATTR_IE]) {
3001 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3002 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3003 }
3004
a1193be8 3005 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3006 bcn->proberesp_ies =
a1193be8 3007 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3008 bcn->proberesp_ies_len =
a1193be8 3009 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3010 }
3011
a1193be8 3012 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3013 bcn->assocresp_ies =
a1193be8 3014 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3015 bcn->assocresp_ies_len =
a1193be8 3016 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3017 }
3018
a1193be8
SW		 3019 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3020 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3021 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3022 }
3023
8860020e
JB		 3024 return 0;
3025}
3026
46c1dd0c
FF		 3027static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3028 struct cfg80211_ap_settings *params)
3029{
3030 struct wireless_dev *wdev;
3031 bool ret = false;
3032
89a54e48 3033 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3034 if (wdev->iftype != NL80211_IFTYPE_AP &&
3035 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3036 continue;
3037
683b6d3b 3038 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3039 continue;
3040
683b6d3b 3041 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3042 ret = true;
3043 break;
3044 }
3045
46c1dd0c
FF		 3046 return ret;
3047}
3048
e39e5b5e
JM		 3049static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3050 enum nl80211_auth_type auth_type,
3051 enum nl80211_commands cmd)
3052{
3053 if (auth_type > NL80211_AUTHTYPE_MAX)
3054 return false;
3055
3056 switch (cmd) {
3057 case NL80211_CMD_AUTHENTICATE:
3058 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3059 auth_type == NL80211_AUTHTYPE_SAE)
3060 return false;
3061 return true;
3062 case NL80211_CMD_CONNECT:
3063 case NL80211_CMD_START_AP:
3064 /* SAE not supported yet */
3065 if (auth_type == NL80211_AUTHTYPE_SAE)
3066 return false;
3067 return true;
3068 default:
3069 return false;
3070 }
3071}
3072
8860020e
JB		 3073static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3074{
3075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3076 struct net_device *dev = info->user_ptr[1];
3077 struct wireless_dev *wdev = dev->ieee80211_ptr;
3078 struct cfg80211_ap_settings params;
3079 int err;
04f39047 3080 u8 radar_detect_width = 0;
8860020e
JB		 3081
3082 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3083 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3084 return -EOPNOTSUPP;
3085
3086 if (!rdev->ops->start_ap)
3087 return -EOPNOTSUPP;
3088
3089 if (wdev->beacon_interval)
3090 return -EALREADY;
3091
3092 memset(&params, 0, sizeof(params));
3093
3094 /* these are required for START_AP */
3095 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3096 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3097 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3098 return -EINVAL;
3099
a1193be8 3100 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3101 if (err)
3102 return err;
3103
3104 params.beacon_interval =
3105 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3106 params.dtim_period =
3107 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3108
3109 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3110 if (err)
3111 return err;
3112
3113 /*
3114 * In theory, some of these attributes should be required here
3115 * but since they were not used when the command was originally
3116 * added, keep them optional for old user space programs to let
3117 * them continue to work with drivers that do not need the
3118 * additional information -- drivers must check!
3119 */
3120 if (info->attrs[NL80211_ATTR_SSID]) {
3121 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3122 params.ssid_len =
3123 nla_len(info->attrs[NL80211_ATTR_SSID]);
3124 if (params.ssid_len == 0 ||
3125 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3126 return -EINVAL;
3127 }
3128
3129 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3130 params.hidden_ssid = nla_get_u32(
3131 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3132 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3133 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3134 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3135 return -EINVAL;
3136 }
3137
3138 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3139
3140 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3141 params.auth_type = nla_get_u32(
3142 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3143 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3144 NL80211_CMD_START_AP))
8860020e
JB		 3145 return -EINVAL;
3146 } else
3147 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3148
3149 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3150 NL80211_MAX_NR_CIPHER_SUITES);
3151 if (err)
3152 return err;
3153
1b658f11
VT		 3154 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3155 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3156 return -EOPNOTSUPP;
3157 params.inactivity_timeout = nla_get_u16(
3158 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3159 }
3160
53cabad7
JB		 3161 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3162 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3163 return -EINVAL;
3164 params.p2p_ctwindow =
3165 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3166 if (params.p2p_ctwindow > 127)
3167 return -EINVAL;
3168 if (params.p2p_ctwindow != 0 &&
3169 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3170 return -EINVAL;
3171 }
3172
3173 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3174 u8 tmp;
3175
3176 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3177 return -EINVAL;
3178 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3179 if (tmp > 1)
3180 return -EINVAL;
3181 params.p2p_opp_ps = tmp;
3182 if (params.p2p_opp_ps != 0 &&
3183 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3184 return -EINVAL;
3185 }
3186
aa430da4 3187 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3188 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3189 if (err)
3190 return err;
3191 } else if (wdev->preset_chandef.chan) {
3192 params.chandef = wdev->preset_chandef;
46c1dd0c 3193 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3194 return -EINVAL;
3195
683b6d3b 3196 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 3197 return -EINVAL;
3198
04f39047
SW		 3199 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
3200 if (err < 0)
3201 return err;
3202 if (err) {
3203 radar_detect_width = BIT(params.chandef.width);
3204 params.radar_required = true;
3205 }
3206
04f39047
SW		 3207 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3208 params.chandef.chan,
3209 CHAN_MODE_SHARED,
3210 radar_detect_width);
e4e32459
MK		 3211 if (err)
3212 return err;
3213
77765eaf
VT		 3214 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3215 params.acl = parse_acl_data(&rdev->wiphy, info);
3216 if (IS_ERR(params.acl))
3217 return PTR_ERR(params.acl);
3218 }
3219
e35e4d28 3220 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3221 if (!err) {
683b6d3b 3222 wdev->preset_chandef = params.chandef;
8860020e 3223 wdev->beacon_interval = params.beacon_interval;
683b6d3b 3224 wdev->channel = params.chandef.chan;
06e191e2
AQ		 3225 wdev->ssid_len = params.ssid_len;
3226 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3227 }
77765eaf
VT		 3228
3229 kfree(params.acl);
3230
56d1893d 3231 return err;
ed1b6cc7
JB		 3232}
3233
8860020e
JB		 3234static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3235{
3236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3237 struct net_device *dev = info->user_ptr[1];
3238 struct wireless_dev *wdev = dev->ieee80211_ptr;
3239 struct cfg80211_beacon_data params;
3240 int err;
3241
3242 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3243 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3244 return -EOPNOTSUPP;
3245
3246 if (!rdev->ops->change_beacon)
3247 return -EOPNOTSUPP;
3248
3249 if (!wdev->beacon_interval)
3250 return -EINVAL;
3251
a1193be8 3252 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3253 if (err)
3254 return err;
3255
e35e4d28 3256 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 3257}
3258
3259static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3260{
4c476991
JB		 3261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3262 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3263
60771780 3264 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 3265}
3266
5727ef1b
JB		 3267static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3268 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3269 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3270 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3271 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3272 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3273 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3274};
3275
eccb8e8f 3276static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3277 enum nl80211_iftype iftype,
eccb8e8f 3278 struct station_parameters *params)
5727ef1b
JB		 3279{
3280 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3281 struct nlattr *nla;
5727ef1b
JB		 3282 int flag;
3283
eccb8e8f
JB		 3284 /*
3285 * Try parsing the new attribute first so userspace
3286 * can specify both for older kernels.
3287 */
3288 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3289 if (nla) {
3290 struct nl80211_sta_flag_update *sta_flags;
3291
3292 sta_flags = nla_data(nla);
3293 params->sta_flags_mask = sta_flags->mask;
3294 params->sta_flags_set = sta_flags->set;
77ee7c89 3295 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3296 if ((params->sta_flags_mask |
3297 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3298 return -EINVAL;
3299 return 0;
3300 }
3301
3302 /* if present, parse the old attribute */
5727ef1b 3303
eccb8e8f 3304 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3305 if (!nla)
3306 return 0;
3307
3308 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3309 nla, sta_flags_policy))
3310 return -EINVAL;
3311
bdd3ae3d
JB		 3312 /*
3313 * Only allow certain flags for interface types so that
3314 * other attributes are silently ignored. Remember that
3315 * this is backward compatibility code with old userspace
3316 * and shouldn't be hit in other cases anyway.
3317 */
3318 switch (iftype) {
3319 case NL80211_IFTYPE_AP:
3320 case NL80211_IFTYPE_AP_VLAN:
3321 case NL80211_IFTYPE_P2P_GO:
3322 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3323 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3324 BIT(NL80211_STA_FLAG_WME) |
3325 BIT(NL80211_STA_FLAG_MFP);
3326 break;
3327 case NL80211_IFTYPE_P2P_CLIENT:
3328 case NL80211_IFTYPE_STATION:
3329 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3330 BIT(NL80211_STA_FLAG_TDLS_PEER);
3331 break;
3332 case NL80211_IFTYPE_MESH_POINT:
3333 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3334 BIT(NL80211_STA_FLAG_MFP) |
3335 BIT(NL80211_STA_FLAG_AUTHORIZED);
3336 default:
3337 return -EINVAL;
3338 }
5727ef1b 3339
3383b5a6
JB		 3340 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3341 if (flags[flag]) {
eccb8e8f 3342 params->sta_flags_set |= (1<<flag);
5727ef1b 3343
3383b5a6
JB		 3344 /* no longer support new API additions in old API */
3345 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3346 return -EINVAL;
3347 }
3348 }
3349
5727ef1b
JB		 3350 return 0;
3351}
3352
c8dcfd8a
FF		 3353static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3354 int attr)
3355{
3356 struct nlattr *rate;
8eb41c8d
VK		 3357 u32 bitrate;
3358 u16 bitrate_compat;
c8dcfd8a
FF		 3359
3360 rate = nla_nest_start(msg, attr);
3361 if (!rate)
db9c64cf 3362 return false;
c8dcfd8a
FF		 3363
3364 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3365 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3366 /* report 16-bit bitrate only if we can */
3367 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3368 if (bitrate > 0 &&
3369 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3370 return false;
3371 if (bitrate_compat > 0 &&
3372 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3373 return false;
3374
3375 if (info->flags & RATE_INFO_FLAGS_MCS) {
3376 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3377 return false;
3378 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3379 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3380 return false;
3381 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3382 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3383 return false;
3384 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3385 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3386 return false;
3387 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3388 return false;
3389 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3390 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3391 return false;
3392 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3393 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3394 return false;
3395 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3396 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3397 return false;
3398 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3399 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3400 return false;
3401 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3402 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3403 return false;
3404 }
c8dcfd8a
FF		 3405
3406 nla_nest_end(msg, rate);
3407 return true;
c8dcfd8a
FF		 3408}
3409
119363c7
FF		 3410static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3411 int id)
3412{
3413 void *attr;
3414 int i = 0;
3415
3416 if (!mask)
3417 return true;
3418
3419 attr = nla_nest_start(msg, id);
3420 if (!attr)
3421 return false;
3422
3423 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3424 if (!(mask & BIT(i)))
3425 continue;
3426
3427 if (nla_put_u8(msg, i, signal[i]))
3428 return false;
3429 }
3430
3431 nla_nest_end(msg, attr);
3432
3433 return true;
3434}
3435
15e47304 3436static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3437 int flags,
3438 struct cfg80211_registered_device *rdev,
3439 struct net_device *dev,
98b62183 3440 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3441{
3442 void *hdr;
f4263c98 3443 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3444
15e47304 3445 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3446 if (!hdr)
3447 return -1;
3448
9360ffd1
DM		 3449 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3450 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3451 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3452 goto nla_put_failure;
f5ea9120 3453
2ec600d6
LCC		 3454 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3455 if (!sinfoattr)
fd5b74dc 3456 goto nla_put_failure;
9360ffd1
DM		 3457 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3458 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3459 sinfo->connected_time))
3460 goto nla_put_failure;
3461 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3462 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3463 sinfo->inactive_time))
3464 goto nla_put_failure;
42745e03
VK		 3465 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3466 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3467 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3468 (u32)sinfo->rx_bytes))
9360ffd1 3469 goto nla_put_failure;
42745e03 3470 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3471 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3472 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3473 (u32)sinfo->tx_bytes))
3474 goto nla_put_failure;
3475 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3476 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3477 sinfo->rx_bytes))
3478 goto nla_put_failure;
3479 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3480 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3481 sinfo->tx_bytes))
3482 goto nla_put_failure;
3483 if ((sinfo->filled & STATION_INFO_LLID) &&
3484 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3485 goto nla_put_failure;
3486 if ((sinfo->filled & STATION_INFO_PLID) &&
3487 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3488 goto nla_put_failure;
3489 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3490 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3491 sinfo->plink_state))
3492 goto nla_put_failure;
66266b3a
JL		 3493 switch (rdev->wiphy.signal_type) {
3494 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3495 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3496 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3497 sinfo->signal))
3498 goto nla_put_failure;
3499 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3500 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3501 sinfo->signal_avg))
3502 goto nla_put_failure;
66266b3a
JL		 3503 break;
3504 default:
3505 break;
3506 }
119363c7
FF		 3507 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3508 if (!nl80211_put_signal(msg, sinfo->chains,
3509 sinfo->chain_signal,
3510 NL80211_STA_INFO_CHAIN_SIGNAL))
3511 goto nla_put_failure;
3512 }
3513 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3514 if (!nl80211_put_signal(msg, sinfo->chains,
3515 sinfo->chain_signal_avg,
3516 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3517 goto nla_put_failure;
3518 }
420e7fab 3519 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3520 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3521 NL80211_STA_INFO_TX_BITRATE))
3522 goto nla_put_failure;
3523 }
3524 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3525 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3526 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3527 goto nla_put_failure;
420e7fab 3528 }
9360ffd1
DM		 3529 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3530 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3531 sinfo->rx_packets))
3532 goto nla_put_failure;
3533 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3534 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3535 sinfo->tx_packets))
3536 goto nla_put_failure;
3537 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3538 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3539 sinfo->tx_retries))
3540 goto nla_put_failure;
3541 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3542 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3543 sinfo->tx_failed))
3544 goto nla_put_failure;
3545 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3546 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3547 sinfo->beacon_loss_count))
3548 goto nla_put_failure;
3b1c5a53
MP		 3549 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3550 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3551 sinfo->local_pm))
3552 goto nla_put_failure;
3553 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3554 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3555 sinfo->peer_pm))
3556 goto nla_put_failure;
3557 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3558 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3559 sinfo->nonpeer_pm))
3560 goto nla_put_failure;
f4263c98
PS		 3561 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3562 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3563 if (!bss_param)
3564 goto nla_put_failure;
3565
9360ffd1
DM		 3566 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3567 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3568 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3569 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3570 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3571 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3572 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3573 sinfo->bss_param.dtim_period) ||
3574 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3575 sinfo->bss_param.beacon_interval))
3576 goto nla_put_failure;
f4263c98
PS		 3577
3578 nla_nest_end(msg, bss_param);
3579 }
9360ffd1
DM		 3580 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3581 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3582 sizeof(struct nl80211_sta_flag_update),
3583 &sinfo->sta_flags))
3584 goto nla_put_failure;
7eab0f64
JL		 3585 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3586 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3587 sinfo->t_offset))
3588 goto nla_put_failure;
2ec600d6 3589 nla_nest_end(msg, sinfoattr);
fd5b74dc 3590
9360ffd1
DM		 3591 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3592 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3593 sinfo->assoc_req_ies))
3594 goto nla_put_failure;
50d3dfb7 3595
fd5b74dc
JB		 3596 return genlmsg_end(msg, hdr);
3597
3598 nla_put_failure:
bc3ed28c
TG		 3599 genlmsg_cancel(msg, hdr);
3600 return -EMSGSIZE;
fd5b74dc
JB		 3601}
3602
2ec600d6 3603static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3604 struct netlink_callback *cb)
2ec600d6 3605{
2ec600d6
LCC		 3606 struct station_info sinfo;
3607 struct cfg80211_registered_device *dev;
97990a06 3608 struct wireless_dev *wdev;
2ec600d6 3609 u8 mac_addr[ETH_ALEN];
97990a06 3610 int sta_idx = cb->args[2];
2ec600d6 3611 int err;
2ec600d6 3612
97990a06 3613 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 3614 if (err)
3615 return err;
bba95fef 3616
97990a06
JB		 3617 if (!wdev->netdev) {
3618 err = -EINVAL;
3619 goto out_err;
3620 }
3621
bba95fef 3622 if (!dev->ops->dump_station) {
eec60b03 3623 err = -EOPNOTSUPP;
bba95fef
JB		 3624 goto out_err;
3625 }
3626
bba95fef 3627 while (1) {
f612cedf 3628 memset(&sinfo, 0, sizeof(sinfo));
97990a06 3629 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
e35e4d28 3630 mac_addr, &sinfo);
bba95fef
JB		 3631 if (err == -ENOENT)
3632 break;
3633 if (err)
3b85875a 3634 goto out_err;
bba95fef
JB		 3635
3636 if (nl80211_send_station(skb,
15e47304 3637 NETLINK_CB(cb->skb).portid,
bba95fef 3638 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 3639 dev, wdev->netdev, mac_addr,
bba95fef
JB		 3640 &sinfo) < 0)
3641 goto out;
3642
3643 sta_idx++;
3644 }
3645
3646
3647 out:
97990a06 3648 cb->args[2] = sta_idx;
bba95fef 3649 err = skb->len;
bba95fef 3650 out_err:
97990a06 3651 nl80211_finish_wdev_dump(dev);
bba95fef
JB		 3652
3653 return err;
2ec600d6 3654}
fd5b74dc 3655
5727ef1b
JB		 3656static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3657{
4c476991
JB		 3658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3659 struct net_device *dev = info->user_ptr[1];
2ec600d6 3660 struct station_info sinfo;
fd5b74dc
JB		 3661 struct sk_buff *msg;
3662 u8 *mac_addr = NULL;
4c476991 3663 int err;
fd5b74dc 3664
2ec600d6 3665 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3666
3667 if (!info->attrs[NL80211_ATTR_MAC])
3668 return -EINVAL;
3669
3670 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3671
4c476991
JB		 3672 if (!rdev->ops->get_station)
3673 return -EOPNOTSUPP;
3b85875a 3674
e35e4d28 3675 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3676 if (err)
4c476991 3677 return err;
2ec600d6 3678
fd2120ca 3679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3680 if (!msg)
4c476991 3681 return -ENOMEM;
fd5b74dc 3682
15e47304 3683 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3684 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3685 nlmsg_free(msg);
3686 return -ENOBUFS;
3687 }
3b85875a 3688
4c476991 3689 return genlmsg_reply(msg, info);
5727ef1b
JB		 3690}
3691
77ee7c89
JB		 3692int cfg80211_check_station_change(struct wiphy *wiphy,
3693 struct station_parameters *params,
3694 enum cfg80211_station_type statype)
3695{
3696 if (params->listen_interval != -1)
3697 return -EINVAL;
3698 if (params->aid)
3699 return -EINVAL;
3700
3701 /* When you run into this, adjust the code below for the new flag */
3702 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3703
3704 switch (statype) {
eef941e6
TP		 3705 case CFG80211_STA_MESH_PEER_KERNEL:
3706 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3707 /*
3708 * No ignoring the TDLS flag here -- the userspace mesh
3709 * code doesn't have the bug of including TDLS in the
3710 * mask everywhere.
3711 */
3712 if (params->sta_flags_mask &
3713 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3714 BIT(NL80211_STA_FLAG_MFP) |
3715 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3716 return -EINVAL;
3717 break;
3718 case CFG80211_STA_TDLS_PEER_SETUP:
3719 case CFG80211_STA_TDLS_PEER_ACTIVE:
3720 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3721 return -EINVAL;
3722 /* ignore since it can't change */
3723 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3724 break;
3725 default:
3726 /* disallow mesh-specific things */
3727 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3728 return -EINVAL;
3729 if (params->local_pm)
3730 return -EINVAL;
3731 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3732 return -EINVAL;
3733 }
3734
3735 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3736 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3737 /* TDLS can't be set, ... */
3738 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3739 return -EINVAL;
3740 /*
3741 * ... but don't bother the driver with it. This works around
3742 * a hostapd/wpa_supplicant issue -- it always includes the
3743 * TLDS_PEER flag in the mask even for AP mode.
3744 */
3745 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3746 }
3747
3748 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3749 /* reject other things that can't change */
3750 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3751 return -EINVAL;
3752 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3753 return -EINVAL;
3754 if (params->supported_rates)
3755 return -EINVAL;
3756 if (params->ext_capab || params->ht_capa || params->vht_capa)
3757 return -EINVAL;
3758 }
3759
3760 if (statype != CFG80211_STA_AP_CLIENT) {
3761 if (params->vlan)
3762 return -EINVAL;
3763 }
3764
3765 switch (statype) {
3766 case CFG80211_STA_AP_MLME_CLIENT:
3767 /* Use this only for authorizing/unauthorizing a station */
3768 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3769 return -EOPNOTSUPP;
3770 break;
3771 case CFG80211_STA_AP_CLIENT:
3772 /* accept only the listed bits */
3773 if (params->sta_flags_mask &
3774 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3775 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3776 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3777 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3778 BIT(NL80211_STA_FLAG_WME) |
3779 BIT(NL80211_STA_FLAG_MFP)))
3780 return -EINVAL;
3781
3782 /* but authenticated/associated only if driver handles it */
3783 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3784 params->sta_flags_mask &
3785 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3786 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3787 return -EINVAL;
3788 break;
3789 case CFG80211_STA_IBSS:
3790 case CFG80211_STA_AP_STA:
3791 /* reject any changes other than AUTHORIZED */
3792 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3793 return -EINVAL;
3794 break;
3795 case CFG80211_STA_TDLS_PEER_SETUP:
3796 /* reject any changes other than AUTHORIZED or WME */
3797 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3798 BIT(NL80211_STA_FLAG_WME)))
3799 return -EINVAL;
3800 /* force (at least) rates when authorizing */
3801 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3802 !params->supported_rates)
3803 return -EINVAL;
3804 break;
3805 case CFG80211_STA_TDLS_PEER_ACTIVE:
3806 /* reject any changes */
3807 return -EINVAL;
eef941e6 3808 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3809 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3810 return -EINVAL;
3811 break;
eef941e6 3812 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3813 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3814 return -EINVAL;
3815 break;
3816 }
3817
3818 return 0;
3819}
3820EXPORT_SYMBOL(cfg80211_check_station_change);
3821
5727ef1b 3822/*
c258d2de 3823 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3824 */
80b99899
JB		 3825static struct net_device *get_vlan(struct genl_info *info,
3826 struct cfg80211_registered_device *rdev)
5727ef1b 3827{
463d0183 3828 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3829 struct net_device *v;
3830 int ret;
3831
3832 if (!vlanattr)
3833 return NULL;
3834
3835 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3836 if (!v)
3837 return ERR_PTR(-ENODEV);
3838
3839 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3840 ret = -EINVAL;
3841 goto error;
5727ef1b 3842 }
80b99899 3843
77ee7c89
JB		 3844 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3845 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3846 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3847 ret = -EINVAL;
3848 goto error;
3849 }
3850
80b99899
JB		 3851 if (!netif_running(v)) {
3852 ret = -ENETDOWN;
3853 goto error;
3854 }
3855
3856 return v;
3857 error:
3858 dev_put(v);
3859 return ERR_PTR(ret);
5727ef1b
JB		 3860}
3861
df881293
JM		 3862static struct nla_policy
3863nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3864 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3865 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3866};
3867
ff276691
JB		 3868static int nl80211_parse_sta_wme(struct genl_info *info,
3869 struct station_parameters *params)
df881293 3870{
df881293
JM		 3871 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3872 struct nlattr *nla;
3873 int err;
3874
df881293
JM		 3875 /* parse WME attributes if present */
3876 if (!info->attrs[NL80211_ATTR_STA_WME])
3877 return 0;
3878
3879 nla = info->attrs[NL80211_ATTR_STA_WME];
3880 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3881 nl80211_sta_wme_policy);
3882 if (err)
3883 return err;
3884
3885 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3886 params->uapsd_queues = nla_get_u8(
3887 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3888 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3889 return -EINVAL;
3890
3891 if (tb[NL80211_STA_WME_MAX_SP])
3892 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3893
3894 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3895 return -EINVAL;
3896
3897 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3898
3899 return 0;
3900}
3901
c01fc9ad
SD		 3902static int nl80211_parse_sta_channel_info(struct genl_info *info,
3903 struct station_parameters *params)
3904{
3905 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3906 params->supported_channels =
3907 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3908 params->supported_channels_len =
3909 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3910 /*
3911 * Need to include at least one (first channel, number of
3912 * channels) tuple for each subband, and must have proper
3913 * tuples for the rest of the data as well.
3914 */
3915 if (params->supported_channels_len < 2)
3916 return -EINVAL;
3917 if (params->supported_channels_len % 2)
3918 return -EINVAL;
3919 }
3920
3921 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3922 params->supported_oper_classes =
3923 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3924 params->supported_oper_classes_len =
3925 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3926 /*
3927 * The value of the Length field of the Supported Operating
3928 * Classes element is between 2 and 253.
3929 */
3930 if (params->supported_oper_classes_len < 2 ||
3931 params->supported_oper_classes_len > 253)
3932 return -EINVAL;
3933 }
3934 return 0;
3935}
3936
ff276691
JB		 3937static int nl80211_set_station_tdls(struct genl_info *info,
3938 struct station_parameters *params)
3939{
c01fc9ad 3940 int err;
ff276691 3941 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 3942 if (info->attrs[NL80211_ATTR_PEER_AID])
3943 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 3944 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3945 params->ht_capa =
3946 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3947 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3948 params->vht_capa =
3949 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3950
c01fc9ad
SD		 3951 err = nl80211_parse_sta_channel_info(info, params);
3952 if (err)
3953 return err;
3954
ff276691
JB		 3955 return nl80211_parse_sta_wme(info, params);
3956}
3957
5727ef1b
JB		 3958static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3959{
4c476991 3960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3961 struct net_device *dev = info->user_ptr[1];
5727ef1b 3962 struct station_parameters params;
77ee7c89
JB		 3963 u8 *mac_addr;
3964 int err;
5727ef1b
JB		 3965
3966 memset(&params, 0, sizeof(params));
3967
3968 params.listen_interval = -1;
3969
77ee7c89
JB		 3970 if (!rdev->ops->change_station)
3971 return -EOPNOTSUPP;
3972
5727ef1b
JB		 3973 if (info->attrs[NL80211_ATTR_STA_AID])
3974 return -EINVAL;
3975
3976 if (!info->attrs[NL80211_ATTR_MAC])
3977 return -EINVAL;
3978
3979 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3980
3981 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3982 params.supported_rates =
3983 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3984 params.supported_rates_len =
3985 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3986 }
3987
9d62a986
JM		 3988 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3989 params.capability =
3990 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3991 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3992 }
3993
3994 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3995 params.ext_capab =
3996 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3997 params.ext_capab_len =
3998 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3999 }
4000
df881293 4001 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4002 return -EINVAL;
36aedc90 4003
bdd3ae3d 4004 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4005 return -EINVAL;
4006
f8bacc21 4007 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4008 params.plink_action =
f8bacc21
JB		 4009 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4010 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4011 return -EINVAL;
4012 }
2ec600d6 4013
f8bacc21 4014 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4015 params.plink_state =
f8bacc21
JB		 4016 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4017 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4018 return -EINVAL;
4019 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4020 }
9c3990aa 4021
3b1c5a53
MP		 4022 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4023 enum nl80211_mesh_power_mode pm = nla_get_u32(
4024 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4025
4026 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4027 pm > NL80211_MESH_POWER_MAX)
4028 return -EINVAL;
4029
4030 params.local_pm = pm;
4031 }
4032
77ee7c89
JB		 4033 /* Include parameters for TDLS peer (will check later) */
4034 err = nl80211_set_station_tdls(info, &params);
4035 if (err)
4036 return err;
4037
4038 params.vlan = get_vlan(info, rdev);
4039 if (IS_ERR(params.vlan))
4040 return PTR_ERR(params.vlan);
4041
a97f4424
JB		 4042 switch (dev->ieee80211_ptr->iftype) {
4043 case NL80211_IFTYPE_AP:
4044 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4045 case NL80211_IFTYPE_P2P_GO:
074ac8df 4046 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4047 case NL80211_IFTYPE_STATION:
267335d6 4048 case NL80211_IFTYPE_ADHOC:
a97f4424 4049 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4050 break;
4051 default:
77ee7c89
JB		 4052 err = -EOPNOTSUPP;
4053 goto out_put_vlan;
034d655e
JB		 4054 }
4055
77ee7c89 4056 /* driver will call cfg80211_check_station_change() */
e35e4d28 4057 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4058
77ee7c89 4059 out_put_vlan:
5727ef1b
JB		 4060 if (params.vlan)
4061 dev_put(params.vlan);
3b85875a 4062
5727ef1b
JB		 4063 return err;
4064}
4065
4066static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4067{
4c476991 4068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4069 int err;
4c476991 4070 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4071 struct station_parameters params;
4072 u8 *mac_addr = NULL;
4073
4074 memset(&params, 0, sizeof(params));
4075
984c311b
JB		 4076 if (!rdev->ops->add_station)
4077 return -EOPNOTSUPP;
4078
5727ef1b
JB		 4079 if (!info->attrs[NL80211_ATTR_MAC])
4080 return -EINVAL;
4081
5727ef1b
JB		 4082 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4083 return -EINVAL;
4084
4085 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4086 return -EINVAL;
4087
5e4b6f56
JM		 4088 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4089 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4090 return -EINVAL;
4091
5727ef1b
JB		 4092 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4093 params.supported_rates =
4094 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4095 params.supported_rates_len =
4096 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4097 params.listen_interval =
4098 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4099
3d124ea2 4100 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4101 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4102 else
4103 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4104 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4105 return -EINVAL;
51b50fbe 4106
9d62a986
JM		 4107 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4108 params.capability =
4109 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4110 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4111 }
4112
4113 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4114 params.ext_capab =
4115 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4116 params.ext_capab_len =
4117 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4118 }
4119
36aedc90
JM		 4120 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4121 params.ht_capa =
4122 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4123
f461be3e
MP		 4124 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4125 params.vht_capa =
4126 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4127
f8bacc21 4128 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4129 params.plink_action =
f8bacc21
JB		 4130 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4131 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4132 return -EINVAL;
4133 }
96b78dff 4134
c01fc9ad
SD		 4135 err = nl80211_parse_sta_channel_info(info, &params);
4136 if (err)
4137 return err;
4138
ff276691
JB		 4139 err = nl80211_parse_sta_wme(info, &params);
4140 if (err)
4141 return err;
bdd90d5e 4142
bdd3ae3d 4143 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4144 return -EINVAL;
4145
77ee7c89
JB		 4146 /* When you run into this, adjust the code below for the new flag */
4147 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4148
bdd90d5e
JB		 4149 switch (dev->ieee80211_ptr->iftype) {
4150 case NL80211_IFTYPE_AP:
4151 case NL80211_IFTYPE_AP_VLAN:
4152 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4153 /* ignore WME attributes if iface/sta is not capable */
4154 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4155 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4156 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4157
bdd90d5e 4158 /* TDLS peers cannot be added */
3d124ea2
JM		 4159 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4160 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4161 return -EINVAL;
bdd90d5e
JB		 4162 /* but don't bother the driver with it */
4163 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4164
d582cffb
JB		 4165 /* allow authenticated/associated only if driver handles it */
4166 if (!(rdev->wiphy.features &
4167 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4168 params.sta_flags_mask &
4169 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4170 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4171 return -EINVAL;
4172
bdd90d5e
JB		 4173 /* must be last in here for error handling */
4174 params.vlan = get_vlan(info, rdev);
4175 if (IS_ERR(params.vlan))
4176 return PTR_ERR(params.vlan);
4177 break;
4178 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4179 /* ignore uAPSD data */
4180 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4181
d582cffb
JB		 4182 /* associated is disallowed */
4183 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4184 return -EINVAL;
bdd90d5e 4185 /* TDLS peers cannot be added */
3d124ea2
JM		 4186 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4187 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4188 return -EINVAL;
4189 break;
4190 case NL80211_IFTYPE_STATION:
93d08f0b 4191 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4192 /* ignore uAPSD data */
4193 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4194
77ee7c89
JB		 4195 /* these are disallowed */
4196 if (params.sta_flags_mask &
4197 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4198 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4199 return -EINVAL;
bdd90d5e
JB		 4200 /* Only TDLS peers can be added */
4201 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4202 return -EINVAL;
4203 /* Can only add if TDLS ... */
4204 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4205 return -EOPNOTSUPP;
4206 /* ... with external setup is supported */
4207 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4208 return -EOPNOTSUPP;
77ee7c89
JB		 4209 /*
4210 * Older wpa_supplicant versions always mark the TDLS peer
4211 * as authorized, but it shouldn't yet be.
4212 */
4213 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4214 break;
4215 default:
4216 return -EOPNOTSUPP;
c75786c9
EP		 4217 }
4218
bdd90d5e 4219 /* be aware of params.vlan when changing code here */
5727ef1b 4220
e35e4d28 4221 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4222
5727ef1b
JB		 4223 if (params.vlan)
4224 dev_put(params.vlan);
5727ef1b
JB		 4225 return err;
4226}
4227
4228static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4229{
4c476991
JB		 4230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4231 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4232 u8 *mac_addr = NULL;
4233
4234 if (info->attrs[NL80211_ATTR_MAC])
4235 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4236
e80cf853 4237 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4238 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4239 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4240 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4241 return -EINVAL;
5727ef1b 4242
4c476991
JB		 4243 if (!rdev->ops->del_station)
4244 return -EOPNOTSUPP;
3b85875a 4245
e35e4d28 4246 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4247}
4248
15e47304 4249static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4250 int flags, struct net_device *dev,
4251 u8 *dst, u8 *next_hop,
4252 struct mpath_info *pinfo)
4253{
4254 void *hdr;
4255 struct nlattr *pinfoattr;
4256
15e47304 4257 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4258 if (!hdr)
4259 return -1;
4260
9360ffd1
DM		 4261 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4262 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4263 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4264 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4265 goto nla_put_failure;
f5ea9120 4266
2ec600d6
LCC		 4267 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4268 if (!pinfoattr)
4269 goto nla_put_failure;
9360ffd1
DM		 4270 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4271 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4272 pinfo->frame_qlen))
4273 goto nla_put_failure;
4274 if (((pinfo->filled & MPATH_INFO_SN) &&
4275 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4276 ((pinfo->filled & MPATH_INFO_METRIC) &&
4277 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4278 pinfo->metric)) ||
4279 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4280 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4281 pinfo->exptime)) ||
4282 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4283 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4284 pinfo->flags)) ||
4285 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4286 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4287 pinfo->discovery_timeout)) ||
4288 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4289 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4290 pinfo->discovery_retries)))
4291 goto nla_put_failure;
2ec600d6
LCC		 4292
4293 nla_nest_end(msg, pinfoattr);
4294
4295 return genlmsg_end(msg, hdr);
4296
4297 nla_put_failure:
bc3ed28c
TG		 4298 genlmsg_cancel(msg, hdr);
4299 return -EMSGSIZE;
2ec600d6
LCC		 4300}
4301
4302static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4303 struct netlink_callback *cb)
2ec600d6 4304{
2ec600d6
LCC		 4305 struct mpath_info pinfo;
4306 struct cfg80211_registered_device *dev;
97990a06 4307 struct wireless_dev *wdev;
2ec600d6
LCC		 4308 u8 dst[ETH_ALEN];
4309 u8 next_hop[ETH_ALEN];
97990a06 4310 int path_idx = cb->args[2];
2ec600d6 4311 int err;
2ec600d6 4312
97990a06 4313 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 4314 if (err)
4315 return err;
bba95fef
JB		 4316
4317 if (!dev->ops->dump_mpath) {
eec60b03 4318 err = -EOPNOTSUPP;
bba95fef
JB		 4319 goto out_err;
4320 }
4321
97990a06 4322 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4323 err = -EOPNOTSUPP;
0448b5fc 4324 goto out_err;
eec60b03
JM		 4325 }
4326
bba95fef 4327 while (1) {
97990a06
JB		 4328 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4329 next_hop, &pinfo);
bba95fef 4330 if (err == -ENOENT)
2ec600d6 4331 break;
bba95fef 4332 if (err)
3b85875a 4333 goto out_err;
2ec600d6 4334
15e47304 4335 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4336 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4337 wdev->netdev, dst, next_hop,
bba95fef
JB		 4338 &pinfo) < 0)
4339 goto out;
2ec600d6 4340
bba95fef 4341 path_idx++;
2ec600d6 4342 }
2ec600d6 4343
2ec600d6 4344
bba95fef 4345 out:
97990a06 4346 cb->args[2] = path_idx;
bba95fef 4347 err = skb->len;
bba95fef 4348 out_err:
97990a06 4349 nl80211_finish_wdev_dump(dev);
bba95fef 4350 return err;
2ec600d6
LCC		 4351}
4352
4353static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4354{
4c476991 4355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4356 int err;
4c476991 4357 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4358 struct mpath_info pinfo;
4359 struct sk_buff *msg;
4360 u8 *dst = NULL;
4361 u8 next_hop[ETH_ALEN];
4362
4363 memset(&pinfo, 0, sizeof(pinfo));
4364
4365 if (!info->attrs[NL80211_ATTR_MAC])
4366 return -EINVAL;
4367
4368 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4369
4c476991
JB		 4370 if (!rdev->ops->get_mpath)
4371 return -EOPNOTSUPP;
2ec600d6 4372
4c476991
JB		 4373 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4374 return -EOPNOTSUPP;
eec60b03 4375
e35e4d28 4376 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4377 if (err)
4c476991 4378 return err;
2ec600d6 4379
fd2120ca 4380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4381 if (!msg)
4c476991 4382 return -ENOMEM;
2ec600d6 4383
15e47304 4384 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4385 dev, dst, next_hop, &pinfo) < 0) {
4386 nlmsg_free(msg);
4387 return -ENOBUFS;
4388 }
3b85875a 4389
4c476991 4390 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4391}
4392
4393static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4394{
4c476991
JB		 4395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4396 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4397 u8 *dst = NULL;
4398 u8 *next_hop = NULL;
4399
4400 if (!info->attrs[NL80211_ATTR_MAC])
4401 return -EINVAL;
4402
4403 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4404 return -EINVAL;
4405
4406 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4407 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4408
4c476991
JB		 4409 if (!rdev->ops->change_mpath)
4410 return -EOPNOTSUPP;
35a8efe1 4411
4c476991
JB		 4412 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4413 return -EOPNOTSUPP;
2ec600d6 4414
e35e4d28 4415 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4416}
4c476991 4417
2ec600d6
LCC		 4418static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4419{
4c476991
JB		 4420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4421 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4422 u8 *dst = NULL;
4423 u8 *next_hop = NULL;
4424
4425 if (!info->attrs[NL80211_ATTR_MAC])
4426 return -EINVAL;
4427
4428 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4429 return -EINVAL;
4430
4431 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4432 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4433
4c476991
JB		 4434 if (!rdev->ops->add_mpath)
4435 return -EOPNOTSUPP;
35a8efe1 4436
4c476991
JB		 4437 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4438 return -EOPNOTSUPP;
2ec600d6 4439
e35e4d28 4440 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4441}
4442
4443static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4444{
4c476991
JB		 4445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4446 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4447 u8 *dst = NULL;
4448
4449 if (info->attrs[NL80211_ATTR_MAC])
4450 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4451
4c476991
JB		 4452 if (!rdev->ops->del_mpath)
4453 return -EOPNOTSUPP;
3b85875a 4454
e35e4d28 4455 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4456}
4457
9f1ba906
JM		 4458static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4459{
4c476991
JB		 4460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4461 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4462 struct bss_parameters params;
4463
4464 memset(&params, 0, sizeof(params));
4465 /* default to not changing parameters */
4466 params.use_cts_prot = -1;
4467 params.use_short_preamble = -1;
4468 params.use_short_slot_time = -1;
fd8aaaf3 4469 params.ap_isolate = -1;
50b12f59 4470 params.ht_opmode = -1;
53cabad7
JB		 4471 params.p2p_ctwindow = -1;
4472 params.p2p_opp_ps = -1;
9f1ba906
JM		 4473
4474 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4475 params.use_cts_prot =
4476 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4477 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4478 params.use_short_preamble =
4479 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4480 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4481 params.use_short_slot_time =
4482 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4483 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4484 params.basic_rates =
4485 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4486 params.basic_rates_len =
4487 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4488 }
fd8aaaf3
FF		 4489 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4490 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4491 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4492 params.ht_opmode =
4493 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4494
53cabad7
JB		 4495 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4496 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4497 return -EINVAL;
4498 params.p2p_ctwindow =
4499 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4500 if (params.p2p_ctwindow < 0)
4501 return -EINVAL;
4502 if (params.p2p_ctwindow != 0 &&
4503 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4504 return -EINVAL;
4505 }
4506
4507 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4508 u8 tmp;
4509
4510 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4511 return -EINVAL;
4512 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4513 if (tmp > 1)
4514 return -EINVAL;
4515 params.p2p_opp_ps = tmp;
4516 if (params.p2p_opp_ps &&
4517 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4518 return -EINVAL;
4519 }
4520
4c476991
JB		 4521 if (!rdev->ops->change_bss)
4522 return -EOPNOTSUPP;
9f1ba906 4523
074ac8df 4524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4525 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4526 return -EOPNOTSUPP;
3b85875a 4527
e35e4d28 4528 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4529}
4530
b54452b0 4531static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4532 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4533 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4534 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4535 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4536 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4537 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4538};
4539
4540static int parse_reg_rule(struct nlattr *tb[],
4541 struct ieee80211_reg_rule *reg_rule)
4542{
4543 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4544 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4545
4546 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4547 return -EINVAL;
4548 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4549 return -EINVAL;
4550 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4551 return -EINVAL;
4552 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4553 return -EINVAL;
4554 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4555 return -EINVAL;
4556
4557 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4558
4559 freq_range->start_freq_khz =
4560 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4561 freq_range->end_freq_khz =
4562 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4563 freq_range->max_bandwidth_khz =
4564 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4565
4566 power_rule->max_eirp =
4567 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4568
4569 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4570 power_rule->max_antenna_gain =
4571 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4572
4573 return 0;
4574}
4575
4576static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4577{
4578 int r;
4579 char *data = NULL;
57b5ce07 4580 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4581
80778f18
LR		 4582 /*
4583 * You should only get this when cfg80211 hasn't yet initialized
4584 * completely when built-in to the kernel right between the time
4585 * window between nl80211_init() and regulatory_init(), if that is
4586 * even possible.
4587 */
458f4f9e 4588 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4589 return -EINPROGRESS;
80778f18 4590
fe33eb39
LR		 4591 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4592 return -EINVAL;
b2e1b302
LR		 4593
4594 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4595
57b5ce07
LR		 4596 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4597 user_reg_hint_type =
4598 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4599 else
4600 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4601
4602 switch (user_reg_hint_type) {
4603 case NL80211_USER_REG_HINT_USER:
4604 case NL80211_USER_REG_HINT_CELL_BASE:
4605 break;
4606 default:
4607 return -EINVAL;
4608 }
4609
4610 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4611
b2e1b302
LR		 4612 return r;
4613}
4614
24bdd9f4 4615static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4616 struct genl_info *info)
93da9cc1 4617{
4c476991 4618 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4619 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4620 struct wireless_dev *wdev = dev->ieee80211_ptr;
4621 struct mesh_config cur_params;
4622 int err = 0;
93da9cc1 4623 void *hdr;
4624 struct nlattr *pinfoattr;
4625 struct sk_buff *msg;
4626
29cbe68c
JB		 4627 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4628 return -EOPNOTSUPP;
4629
24bdd9f4 4630 if (!rdev->ops->get_mesh_config)
4c476991 4631 return -EOPNOTSUPP;
f3f92586 4632
29cbe68c
JB		 4633 wdev_lock(wdev);
4634 /* If not connected, get default parameters */
4635 if (!wdev->mesh_id_len)
4636 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4637 else
e35e4d28 4638 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4639 wdev_unlock(wdev);
4640
93da9cc1 4641 if (err)
4c476991 4642 return err;
93da9cc1 4643
4644 /* Draw up a netlink message to send back */
fd2120ca 4645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4646 if (!msg)
4647 return -ENOMEM;
15e47304 4648 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4649 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4650 if (!hdr)
efe1cf0c 4651 goto out;
24bdd9f4 4652 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4653 if (!pinfoattr)
4654 goto nla_put_failure;
9360ffd1
DM		 4655 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4656 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4657 cur_params.dot11MeshRetryTimeout) ||
4658 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4659 cur_params.dot11MeshConfirmTimeout) ||
4660 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4661 cur_params.dot11MeshHoldingTimeout) ||
4662 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4663 cur_params.dot11MeshMaxPeerLinks) ||
4664 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4665 cur_params.dot11MeshMaxRetries) ||
4666 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4667 cur_params.dot11MeshTTL) ||
4668 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4669 cur_params.element_ttl) ||
4670 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4671 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4672 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4673 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4674 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4675 cur_params.dot11MeshHWMPmaxPREQretries) ||
4676 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4677 cur_params.path_refresh_time) ||
4678 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4679 cur_params.min_discovery_timeout) ||
4680 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4681 cur_params.dot11MeshHWMPactivePathTimeout) ||
4682 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4683 cur_params.dot11MeshHWMPpreqMinInterval) ||
4684 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4685 cur_params.dot11MeshHWMPperrMinInterval) ||
4686 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4687 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4688 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4689 cur_params.dot11MeshHWMPRootMode) ||
4690 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4691 cur_params.dot11MeshHWMPRannInterval) ||
4692 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4693 cur_params.dot11MeshGateAnnouncementProtocol) ||
4694 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4695 cur_params.dot11MeshForwarding) ||
4696 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4697 cur_params.rssi_threshold) ||
4698 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4699 cur_params.ht_opmode) ||
4700 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4701 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4702 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4703 cur_params.dot11MeshHWMProotInterval) ||
4704 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4705 cur_params.dot11MeshHWMPconfirmationInterval) ||
4706 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4707 cur_params.power_mode) ||
4708 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4709 cur_params.dot11MeshAwakeWindowDuration) ||
4710 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4711 cur_params.plink_timeout))
9360ffd1 4712 goto nla_put_failure;
93da9cc1 4713 nla_nest_end(msg, pinfoattr);
4714 genlmsg_end(msg, hdr);
4c476991 4715 return genlmsg_reply(msg, info);
93da9cc1 4716
3b85875a 4717 nla_put_failure:
93da9cc1 4718 genlmsg_cancel(msg, hdr);
efe1cf0c 4719 out:
d080e275 4720 nlmsg_free(msg);
4c476991 4721 return -ENOBUFS;
93da9cc1 4722}
4723
b54452b0 4724static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4725 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4726 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4727 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4728 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4729 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4730 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4731 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4732 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4733 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4734 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4735 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4736 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4737 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4738 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4739 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4740 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4741 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4742 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4743 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4744 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4745 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4746 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4747 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4748 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4749 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4750 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4751 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 4752 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 4753};
4754
c80d545d
JC		 4755static const struct nla_policy
4756 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4757 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4758 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4759 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4760 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 4761 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 4762 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 4763 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4764 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4765 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4766};
4767
24bdd9f4 4768static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4769 struct mesh_config *cfg,
4770 u32 *mask_out)
93da9cc1 4771{
93da9cc1 4772 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4773 u32 mask = 0;
93da9cc1 4774
ea54fba2
MP		 4775#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4776do { \
4777 if (tb[attr]) { \
4778 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4779 return -EINVAL; \
4780 cfg->param = fn(tb[attr]); \
4781 mask |= (1 << (attr - 1)); \
4782 } \
4783} while (0)
bd90fdcc
JB		 4784
4785
24bdd9f4 4786 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4787 return -EINVAL;
4788 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4789 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4790 nl80211_meshconf_params_policy))
93da9cc1 4791 return -EINVAL;
4792
93da9cc1 4793 /* This makes sure that there aren't more than 32 mesh config
4794 * parameters (otherwise our bitfield scheme would not work.) */
4795 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4796
4797 /* Fill in the params struct */
ea54fba2 4798 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4799 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4800 nla_get_u16);
ea54fba2 4801 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4802 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4803 nla_get_u16);
ea54fba2 4804 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4805 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4806 nla_get_u16);
ea54fba2 4807 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4808 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4809 nla_get_u16);
ea54fba2 4810 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4811 mask, NL80211_MESHCONF_MAX_RETRIES,
4812 nla_get_u8);
ea54fba2 4813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4814 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4815 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4816 mask, NL80211_MESHCONF_ELEMENT_TTL,
4817 nla_get_u8);
ea54fba2 4818 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4819 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4820 nla_get_u8);
ea54fba2
MP		 4821 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4822 1, 255, mask,
a4f606ea
CYY		 4823 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4824 nla_get_u32);
ea54fba2 4825 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4826 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4827 nla_get_u8);
ea54fba2 4828 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4829 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4830 nla_get_u32);
ea54fba2 4831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4832 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4833 nla_get_u16);
ea54fba2
MP		 4834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4835 1, 65535, mask,
a4f606ea
CYY		 4836 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4837 nla_get_u32);
93da9cc1 4838 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4839 1, 65535, mask,
4840 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4841 nla_get_u16);
dca7e943 4842 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4843 1, 65535, mask,
4844 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4845 nla_get_u16);
93da9cc1 4846 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4847 dot11MeshHWMPnetDiameterTraversalTime,
4848 1, 65535, mask,
a4f606ea
CYY		 4849 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4850 nla_get_u16);
ea54fba2
MP		 4851 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4852 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4853 nla_get_u8);
4854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4855 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4856 nla_get_u16);
63c5723b 4857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4858 dot11MeshGateAnnouncementProtocol, 0, 1,
4859 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4860 nla_get_u8);
ea54fba2 4861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4862 mask, NL80211_MESHCONF_FORWARDING,
4863 nla_get_u8);
83374fe9 4864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 4865 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 4866 nla_get_s32);
ea54fba2 4867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4868 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4869 nla_get_u16);
4870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4871 1, 65535, mask,
ac1073a6
CYY		 4872 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4873 nla_get_u32);
ea54fba2 4874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4875 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4876 nla_get_u16);
4877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4878 dot11MeshHWMPconfirmationInterval,
4879 1, 65535, mask,
728b19e5 4880 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4881 nla_get_u16);
3b1c5a53
MP		 4882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4883 NL80211_MESH_POWER_ACTIVE,
4884 NL80211_MESH_POWER_MAX,
4885 mask, NL80211_MESHCONF_POWER_MODE,
4886 nla_get_u32);
4887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4888 0, 65535, mask,
4889 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 4890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4891 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4892 nla_get_u32);
bd90fdcc
JB		 4893 if (mask_out)
4894 *mask_out = mask;
c80d545d 4895
bd90fdcc
JB		 4896 return 0;
4897
4898#undef FILL_IN_MESH_PARAM_IF_SET
4899}
4900
c80d545d
JC		 4901static int nl80211_parse_mesh_setup(struct genl_info *info,
4902 struct mesh_setup *setup)
4903{
bb2798d4 4904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 4905 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4906
4907 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4908 return -EINVAL;
4909 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4910 info->attrs[NL80211_ATTR_MESH_SETUP],
4911 nl80211_mesh_setup_params_policy))
4912 return -EINVAL;
4913
d299a1f2
JC		 4914 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4915 setup->sync_method =
4916 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4917 IEEE80211_SYNC_METHOD_VENDOR :
4918 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4919
c80d545d
JC		 4920 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4921 setup->path_sel_proto =
4922 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4923 IEEE80211_PATH_PROTOCOL_VENDOR :
4924 IEEE80211_PATH_PROTOCOL_HWMP;
4925
4926 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4927 setup->path_metric =
4928 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4929 IEEE80211_PATH_METRIC_VENDOR :
4930 IEEE80211_PATH_METRIC_AIRTIME;
4931
581a8b0f
JC		 4932
4933 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4934 struct nlattr *ieattr =
581a8b0f 4935 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4936 if (!is_valid_ie_attr(ieattr))
4937 return -EINVAL;
581a8b0f
JC		 4938 setup->ie = nla_data(ieattr);
4939 setup->ie_len = nla_len(ieattr);
c80d545d 4940 }
bb2798d4
TP		 4941 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4942 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4943 return -EINVAL;
4944 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 4945 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4946 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 4947 if (setup->is_secure)
4948 setup->user_mpm = true;
c80d545d 4949
6e16d90b
CT		 4950 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4951 if (!setup->user_mpm)
4952 return -EINVAL;
4953 setup->auth_id =
4954 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4955 }
4956
c80d545d
JC		 4957 return 0;
4958}
4959
24bdd9f4 4960static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4961 struct genl_info *info)
bd90fdcc
JB		 4962{
4963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4964 struct net_device *dev = info->user_ptr[1];
29cbe68c 4965 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4966 struct mesh_config cfg;
4967 u32 mask;
4968 int err;
4969
29cbe68c
JB		 4970 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4971 return -EOPNOTSUPP;
4972
24bdd9f4 4973 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4974 return -EOPNOTSUPP;
4975
24bdd9f4 4976 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4977 if (err)
4978 return err;
4979
29cbe68c
JB		 4980 wdev_lock(wdev);
4981 if (!wdev->mesh_id_len)
4982 err = -ENOLINK;
4983
4984 if (!err)
e35e4d28 4985 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4986
4987 wdev_unlock(wdev);
4988
4989 return err;
93da9cc1 4990}
4991
f130347c
LR		 4992static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4993{
458f4f9e 4994 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4995 struct sk_buff *msg;
4996 void *hdr = NULL;
4997 struct nlattr *nl_reg_rules;
4998 unsigned int i;
f130347c
LR		 4999
5000 if (!cfg80211_regdomain)
5fe231e8 5001 return -EINVAL;
f130347c 5002
fd2120ca 5003 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5004 if (!msg)
5005 return -ENOBUFS;
f130347c 5006
15e47304 5007 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5008 NL80211_CMD_GET_REG);
5009 if (!hdr)
efe1cf0c 5010 goto put_failure;
f130347c 5011
57b5ce07
LR		 5012 if (reg_last_request_cell_base() &&
5013 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5014 NL80211_USER_REG_HINT_CELL_BASE))
5015 goto nla_put_failure;
5016
458f4f9e
JB		 5017 rcu_read_lock();
5018 regdom = rcu_dereference(cfg80211_regdomain);
5019
5020 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5021 (regdom->dfs_region &&
5022 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5023 goto nla_put_failure_rcu;
5024
f130347c
LR		 5025 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5026 if (!nl_reg_rules)
458f4f9e 5027 goto nla_put_failure_rcu;
f130347c 5028
458f4f9e 5029 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5030 struct nlattr *nl_reg_rule;
5031 const struct ieee80211_reg_rule *reg_rule;
5032 const struct ieee80211_freq_range *freq_range;
5033 const struct ieee80211_power_rule *power_rule;
5034
458f4f9e 5035 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5036 freq_range = &reg_rule->freq_range;
5037 power_rule = &reg_rule->power_rule;
5038
5039 nl_reg_rule = nla_nest_start(msg, i);
5040 if (!nl_reg_rule)
458f4f9e 5041 goto nla_put_failure_rcu;
f130347c 5042
9360ffd1
DM		 5043 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5044 reg_rule->flags) ||
5045 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5046 freq_range->start_freq_khz) ||
5047 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5048 freq_range->end_freq_khz) ||
5049 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5050 freq_range->max_bandwidth_khz) ||
5051 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5052 power_rule->max_antenna_gain) ||
5053 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5054 power_rule->max_eirp))
458f4f9e 5055 goto nla_put_failure_rcu;
f130347c
LR		 5056
5057 nla_nest_end(msg, nl_reg_rule);
5058 }
458f4f9e 5059 rcu_read_unlock();
f130347c
LR		 5060
5061 nla_nest_end(msg, nl_reg_rules);
5062
5063 genlmsg_end(msg, hdr);
5fe231e8 5064 return genlmsg_reply(msg, info);
f130347c 5065
458f4f9e
JB		 5066nla_put_failure_rcu:
5067 rcu_read_unlock();
f130347c
LR		 5068nla_put_failure:
5069 genlmsg_cancel(msg, hdr);
efe1cf0c 5070put_failure:
d080e275 5071 nlmsg_free(msg);
5fe231e8 5072 return -EMSGSIZE;
f130347c
LR		 5073}
5074
b2e1b302
LR		 5075static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5076{
5077 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5078 struct nlattr *nl_reg_rule;
5079 char *alpha2 = NULL;
5080 int rem_reg_rules = 0, r = 0;
5081 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 5082 u8 dfs_region = 0;
b2e1b302
LR		 5083 struct ieee80211_regdomain *rd = NULL;
5084
5085 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5086 return -EINVAL;
5087
5088 if (!info->attrs[NL80211_ATTR_REG_RULES])
5089 return -EINVAL;
5090
5091 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5092
8b60b078
LR		 5093 if (info->attrs[NL80211_ATTR_DFS_REGION])
5094 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5095
b2e1b302 5096 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5097 rem_reg_rules) {
b2e1b302
LR		 5098 num_rules++;
5099 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5100 return -EINVAL;
b2e1b302
LR		 5101 }
5102
b2e1b302 5103 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5104 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5105
5106 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5107 if (!rd)
5108 return -ENOMEM;
b2e1b302
LR		 5109
5110 rd->n_reg_rules = num_rules;
5111 rd->alpha2[0] = alpha2[0];
5112 rd->alpha2[1] = alpha2[1];
5113
8b60b078
LR		 5114 /*
5115 * Disable DFS master mode if the DFS region was
5116 * not supported or known on this kernel.
5117 */
5118 if (reg_supported_dfs_region(dfs_region))
5119 rd->dfs_region = dfs_region;
5120
b2e1b302 5121 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5122 rem_reg_rules) {
b2e1b302 5123 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 5124 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5125 reg_rule_policy);
b2e1b302
LR		 5126 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5127 if (r)
5128 goto bad_reg;
5129
5130 rule_idx++;
5131
d0e18f83
LR		 5132 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5133 r = -EINVAL;
b2e1b302 5134 goto bad_reg;
d0e18f83 5135 }
b2e1b302
LR		 5136 }
5137
b2e1b302 5138 r = set_regdom(rd);
6913b49a 5139 /* set_regdom took ownership */
1a919318 5140 rd = NULL;
b2e1b302 5141
d2372b31 5142 bad_reg:
b2e1b302 5143 kfree(rd);
d0e18f83 5144 return r;
b2e1b302
LR		 5145}
5146
83f5e2cf
JB		 5147static int validate_scan_freqs(struct nlattr *freqs)
5148{
5149 struct nlattr *attr1, *attr2;
5150 int n_channels = 0, tmp1, tmp2;
5151
5152 nla_for_each_nested(attr1, freqs, tmp1) {
5153 n_channels++;
5154 /*
5155 * Some hardware has a limited channel list for
5156 * scanning, and it is pretty much nonsensical
5157 * to scan for a channel twice, so disallow that
5158 * and don't require drivers to check that the
5159 * channel list they get isn't longer than what
5160 * they can scan, as long as they can scan all
5161 * the channels they registered at once.
5162 */
5163 nla_for_each_nested(attr2, freqs, tmp2)
5164 if (attr1 != attr2 &&
5165 nla_get_u32(attr1) == nla_get_u32(attr2))
5166 return 0;
5167 }
5168
5169 return n_channels;
5170}
5171
2a519311
JB		 5172static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5173{
4c476991 5174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5175 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5176 struct cfg80211_scan_request *request;
2a519311
JB		 5177 struct nlattr *attr;
5178 struct wiphy *wiphy;
83f5e2cf 5179 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5180 size_t ie_len;
2a519311 5181
f4a11bb0
JB		 5182 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5183 return -EINVAL;
5184
79c97e97 5185 wiphy = &rdev->wiphy;
2a519311 5186
4c476991
JB		 5187 if (!rdev->ops->scan)
5188 return -EOPNOTSUPP;
2a519311 5189
f9f47529
JB		 5190 if (rdev->scan_req) {
5191 err = -EBUSY;
5192 goto unlock;
5193 }
2a519311
JB		 5194
5195 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5196 n_channels = validate_scan_freqs(
5197 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5198 if (!n_channels) {
5199 err = -EINVAL;
5200 goto unlock;
5201 }
2a519311 5202 } else {
34850ab2 5203 enum ieee80211_band band;
83f5e2cf
JB		 5204 n_channels = 0;
5205
2a519311
JB		 5206 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5207 if (wiphy->bands[band])
5208 n_channels += wiphy->bands[band]->n_channels;
5209 }
5210
5211 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5212 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5213 n_ssids++;
5214
f9f47529
JB		 5215 if (n_ssids > wiphy->max_scan_ssids) {
5216 err = -EINVAL;
5217 goto unlock;
5218 }
2a519311 5219
70692ad2
JM		 5220 if (info->attrs[NL80211_ATTR_IE])
5221 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5222 else
5223 ie_len = 0;
5224
f9f47529
JB		 5225 if (ie_len > wiphy->max_scan_ie_len) {
5226 err = -EINVAL;
5227 goto unlock;
5228 }
18a83659 5229
2a519311 5230 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5231 + sizeof(*request->ssids) * n_ssids
5232 + sizeof(*request->channels) * n_channels
70692ad2 5233 + ie_len, GFP_KERNEL);
f9f47529
JB		 5234 if (!request) {
5235 err = -ENOMEM;
5236 goto unlock;
5237 }
2a519311 5238
2a519311 5239 if (n_ssids)
5ba63533 5240 request->ssids = (void *)&request->channels[n_channels];
2a519311 5241 request->n_ssids = n_ssids;
70692ad2
JM		 5242 if (ie_len) {
5243 if (request->ssids)
5244 request->ie = (void *)(request->ssids + n_ssids);
5245 else
5246 request->ie = (void *)(request->channels + n_channels);
5247 }
2a519311 5248
584991dc 5249 i = 0;
2a519311
JB		 5250 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5251 /* user specified, bail out if channel not found */
2a519311 5252 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5253 struct ieee80211_channel *chan;
5254
5255 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5256
5257 if (!chan) {
2a519311
JB		 5258 err = -EINVAL;
5259 goto out_free;
5260 }
584991dc
JB		 5261
5262 /* ignore disabled channels */
5263 if (chan->flags & IEEE80211_CHAN_DISABLED)
5264 continue;
5265
5266 request->channels[i] = chan;
2a519311
JB		 5267 i++;
5268 }
5269 } else {
34850ab2
JB		 5270 enum ieee80211_band band;
5271
2a519311 5272 /* all channels */
2a519311
JB		 5273 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5274 int j;
5275 if (!wiphy->bands[band])
5276 continue;
5277 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5278 struct ieee80211_channel *chan;
5279
5280 chan = &wiphy->bands[band]->channels[j];
5281
5282 if (chan->flags & IEEE80211_CHAN_DISABLED)
5283 continue;
5284
5285 request->channels[i] = chan;
2a519311
JB		 5286 i++;
5287 }
5288 }
5289 }
5290
584991dc
JB		 5291 if (!i) {
5292 err = -EINVAL;
5293 goto out_free;
5294 }
5295
5296 request->n_channels = i;
5297
2a519311
JB		 5298 i = 0;
5299 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5300 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5301 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5302 err = -EINVAL;
5303 goto out_free;
5304 }
57a27e1d 5305 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5306 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5307 i++;
5308 }
5309 }
5310
70692ad2
JM		 5311 if (info->attrs[NL80211_ATTR_IE]) {
5312 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5313 memcpy((void *)request->ie,
5314 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5315 request->ie_len);
5316 }
5317
34850ab2 5318 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5319 if (wiphy->bands[i])
5320 request->rates[i] =
5321 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5322
5323 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5324 nla_for_each_nested(attr,
5325 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5326 tmp) {
5327 enum ieee80211_band band = nla_type(attr);
5328
84404623 5329 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5330 err = -EINVAL;
5331 goto out_free;
5332 }
5333 err = ieee80211_get_ratemask(wiphy->bands[band],
5334 nla_data(attr),
5335 nla_len(attr),
5336 &request->rates[band]);
5337 if (err)
5338 goto out_free;
5339 }
5340 }
5341
46856bbf 5342 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5343 request->flags = nla_get_u32(
5344 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5345 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5346 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5347 err = -EOPNOTSUPP;
5348 goto out_free;
5349 }
5350 }
ed473771 5351
e9f935e3
RM		 5352 request->no_cck =
5353 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5354
fd014284 5355 request->wdev = wdev;
79c97e97 5356 request->wiphy = &rdev->wiphy;
15d6030b 5357 request->scan_start = jiffies;
2a519311 5358
79c97e97 5359 rdev->scan_req = request;
e35e4d28 5360 err = rdev_scan(rdev, request);
2a519311 5361
463d0183 5362 if (!err) {
fd014284
JB		 5363 nl80211_send_scan_start(rdev, wdev);
5364 if (wdev->netdev)
5365 dev_hold(wdev->netdev);
4c476991 5366 } else {
2a519311 5367 out_free:
79c97e97 5368 rdev->scan_req = NULL;
2a519311
JB		 5369 kfree(request);
5370 }
3b85875a 5371
f9f47529 5372 unlock:
2a519311
JB		 5373 return err;
5374}
5375
807f8a8c
LC		 5376static int nl80211_start_sched_scan(struct sk_buff *skb,
5377 struct genl_info *info)
5378{
5379 struct cfg80211_sched_scan_request *request;
5380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5381 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5382 struct nlattr *attr;
5383 struct wiphy *wiphy;
a1f1c21c 5384 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5385 u32 interval;
807f8a8c
LC		 5386 enum ieee80211_band band;
5387 size_t ie_len;
a1f1c21c 5388 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 5389
5390 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5391 !rdev->ops->sched_scan_start)
5392 return -EOPNOTSUPP;
5393
5394 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5395 return -EINVAL;
5396
bbe6ad6d
LC		 5397 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5398 return -EINVAL;
5399
5400 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5401 if (interval == 0)
5402 return -EINVAL;
5403
807f8a8c
LC		 5404 wiphy = &rdev->wiphy;
5405
5406 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5407 n_channels = validate_scan_freqs(
5408 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5409 if (!n_channels)
5410 return -EINVAL;
5411 } else {
5412 n_channels = 0;
5413
5414 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5415 if (wiphy->bands[band])
5416 n_channels += wiphy->bands[band]->n_channels;
5417 }
5418
5419 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5420 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5421 tmp)
5422 n_ssids++;
5423
93b6aa69 5424 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5425 return -EINVAL;
5426
a1f1c21c
LC		 5427 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5428 nla_for_each_nested(attr,
5429 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5430 tmp)
5431 n_match_sets++;
5432
5433 if (n_match_sets > wiphy->max_match_sets)
5434 return -EINVAL;
5435
807f8a8c
LC		 5436 if (info->attrs[NL80211_ATTR_IE])
5437 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5438 else
5439 ie_len = 0;
5440
5a865bad 5441 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5442 return -EINVAL;
5443
c10841ca
LC		 5444 if (rdev->sched_scan_req) {
5445 err = -EINPROGRESS;
5446 goto out;
5447 }
5448
807f8a8c 5449 request = kzalloc(sizeof(*request)
a2cd43c5 5450 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5451 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5452 + sizeof(*request->channels) * n_channels
807f8a8c 5453 + ie_len, GFP_KERNEL);
c10841ca
LC		 5454 if (!request) {
5455 err = -ENOMEM;
5456 goto out;
5457 }
807f8a8c
LC		 5458
5459 if (n_ssids)
5460 request->ssids = (void *)&request->channels[n_channels];
5461 request->n_ssids = n_ssids;
5462 if (ie_len) {
5463 if (request->ssids)
5464 request->ie = (void *)(request->ssids + n_ssids);
5465 else
5466 request->ie = (void *)(request->channels + n_channels);
5467 }
5468
a1f1c21c
LC		 5469 if (n_match_sets) {
5470 if (request->ie)
5471 request->match_sets = (void *)(request->ie + ie_len);
5472 else if (request->ssids)
5473 request->match_sets =
5474 (void *)(request->ssids + n_ssids);
5475 else
5476 request->match_sets =
5477 (void *)(request->channels + n_channels);
5478 }
5479 request->n_match_sets = n_match_sets;
5480
807f8a8c
LC		 5481 i = 0;
5482 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5483 /* user specified, bail out if channel not found */
5484 nla_for_each_nested(attr,
5485 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5486 tmp) {
5487 struct ieee80211_channel *chan;
5488
5489 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5490
5491 if (!chan) {
5492 err = -EINVAL;
5493 goto out_free;
5494 }
5495
5496 /* ignore disabled channels */
5497 if (chan->flags & IEEE80211_CHAN_DISABLED)
5498 continue;
5499
5500 request->channels[i] = chan;
5501 i++;
5502 }
5503 } else {
5504 /* all channels */
5505 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5506 int j;
5507 if (!wiphy->bands[band])
5508 continue;
5509 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5510 struct ieee80211_channel *chan;
5511
5512 chan = &wiphy->bands[band]->channels[j];
5513
5514 if (chan->flags & IEEE80211_CHAN_DISABLED)
5515 continue;
5516
5517 request->channels[i] = chan;
5518 i++;
5519 }
5520 }
5521 }
5522
5523 if (!i) {
5524 err = -EINVAL;
5525 goto out_free;
5526 }
5527
5528 request->n_channels = i;
5529
5530 i = 0;
5531 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5532 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5533 tmp) {
57a27e1d 5534 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5535 err = -EINVAL;
5536 goto out_free;
5537 }
57a27e1d 5538 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5539 memcpy(request->ssids[i].ssid, nla_data(attr),
5540 nla_len(attr));
807f8a8c
LC		 5541 i++;
5542 }
5543 }
5544
a1f1c21c
LC		 5545 i = 0;
5546 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5547 nla_for_each_nested(attr,
5548 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5549 tmp) {
88e920b4 5550 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5551
5552 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5553 nla_data(attr), nla_len(attr),
5554 nl80211_match_policy);
4a4ab0d7 5555 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5556 if (ssid) {
5557 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5558 err = -EINVAL;
5559 goto out_free;
5560 }
5561 memcpy(request->match_sets[i].ssid.ssid,
5562 nla_data(ssid), nla_len(ssid));
5563 request->match_sets[i].ssid.ssid_len =
5564 nla_len(ssid);
5565 }
88e920b4
TP		 5566 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5567 if (rssi)
5568 request->rssi_thold = nla_get_u32(rssi);
5569 else
5570 request->rssi_thold =
5571 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5572 i++;
5573 }
5574 }
5575
807f8a8c
LC		 5576 if (info->attrs[NL80211_ATTR_IE]) {
5577 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5578 memcpy((void *)request->ie,
5579 nla_data(info->attrs[NL80211_ATTR_IE]),
5580 request->ie_len);
5581 }
5582
46856bbf 5583 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5584 request->flags = nla_get_u32(
5585 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5586 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5587 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5588 err = -EOPNOTSUPP;
5589 goto out_free;
5590 }
5591 }
ed473771 5592
807f8a8c
LC		 5593 request->dev = dev;
5594 request->wiphy = &rdev->wiphy;
bbe6ad6d 5595 request->interval = interval;
15d6030b 5596 request->scan_start = jiffies;
807f8a8c 5597
e35e4d28 5598 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5599 if (!err) {
5600 rdev->sched_scan_req = request;
5601 nl80211_send_sched_scan(rdev, dev,
5602 NL80211_CMD_START_SCHED_SCAN);
5603 goto out;
5604 }
5605
5606out_free:
5607 kfree(request);
5608out:
5609 return err;
5610}
5611
5612static int nl80211_stop_sched_scan(struct sk_buff *skb,
5613 struct genl_info *info)
5614{
5615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5616
5617 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5618 !rdev->ops->sched_scan_stop)
5619 return -EOPNOTSUPP;
5620
5fe231e8 5621 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5622}
5623
04f39047
SW		 5624static int nl80211_start_radar_detection(struct sk_buff *skb,
5625 struct genl_info *info)
5626{
5627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5628 struct net_device *dev = info->user_ptr[1];
5629 struct wireless_dev *wdev = dev->ieee80211_ptr;
5630 struct cfg80211_chan_def chandef;
5631 int err;
5632
5633 err = nl80211_parse_chandef(rdev, info, &chandef);
5634 if (err)
5635 return err;
5636
ff311bc1
SW		 5637 if (netif_carrier_ok(dev))
5638 return -EBUSY;
5639
04f39047
SW		 5640 if (wdev->cac_started)
5641 return -EBUSY;
5642
5643 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5644 if (err < 0)
5645 return err;
5646
5647 if (err == 0)
5648 return -EINVAL;
5649
fe7c3a1f 5650 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5651 return -EINVAL;
5652
5653 if (!rdev->ops->start_radar_detection)
5654 return -EOPNOTSUPP;
5655
04f39047
SW		 5656 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5657 chandef.chan, CHAN_MODE_SHARED,
5658 BIT(chandef.width));
5659 if (err)
5fe231e8 5660 return err;
04f39047
SW		 5661
5662 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5663 if (!err) {
5664 wdev->channel = chandef.chan;
5665 wdev->cac_started = true;
5666 wdev->cac_start_time = jiffies;
5667 }
04f39047
SW		 5668 return err;
5669}
5670
16ef1fe2
SW		 5671static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5672{
5673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5674 struct net_device *dev = info->user_ptr[1];
5675 struct wireless_dev *wdev = dev->ieee80211_ptr;
5676 struct cfg80211_csa_settings params;
5677 /* csa_attrs is defined static to avoid waste of stack size - this
5678 * function is called under RTNL lock, so this should not be a problem.
5679 */
5680 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5681 u8 radar_detect_width = 0;
5682 int err;
ee4bc9e7 5683 bool need_new_beacon = false;
16ef1fe2
SW		 5684
5685 if (!rdev->ops->channel_switch ||
5686 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5687 return -EOPNOTSUPP;
5688
ee4bc9e7
SW		 5689 switch (dev->ieee80211_ptr->iftype) {
5690 case NL80211_IFTYPE_AP:
5691 case NL80211_IFTYPE_P2P_GO:
5692 need_new_beacon = true;
5693
5694 /* useless if AP is not running */
5695 if (!wdev->beacon_interval)
5696 return -EINVAL;
5697 break;
5698 case NL80211_IFTYPE_ADHOC:
c6da674a 5699 case NL80211_IFTYPE_MESH_POINT:
ee4bc9e7
SW		 5700 break;
5701 default:
16ef1fe2 5702 return -EOPNOTSUPP;
ee4bc9e7 5703 }
16ef1fe2
SW		 5704
5705 memset(&params, 0, sizeof(params));
5706
5707 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5708 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5709 return -EINVAL;
5710
5711 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 5712 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 5713 return -EINVAL;
5714
5715 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5716
ee4bc9e7
SW		 5717 if (!need_new_beacon)
5718 goto skip_beacons;
5719
16ef1fe2
SW		 5720 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
5721 if (err)
5722 return err;
5723
5724 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5725 info->attrs[NL80211_ATTR_CSA_IES],
5726 nl80211_policy);
5727 if (err)
5728 return err;
5729
5730 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
5731 if (err)
5732 return err;
5733
5734 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5735 return -EINVAL;
5736
5737 params.counter_offset_beacon =
5738 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5739 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5740 return -EINVAL;
5741
5742 /* sanity check - counters should be the same */
5743 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5744 params.count)
5745 return -EINVAL;
5746
5747 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5748 params.counter_offset_presp =
5749 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5750 if (params.counter_offset_presp >=
5751 params.beacon_csa.probe_resp_len)
5752 return -EINVAL;
5753
5754 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5755 params.count)
5756 return -EINVAL;
5757 }
5758
ee4bc9e7 5759skip_beacons:
16ef1fe2
SW		 5760 err = nl80211_parse_chandef(rdev, info, &params.chandef);
5761 if (err)
5762 return err;
5763
5764 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
5765 return -EINVAL;
5766
ee4bc9e7 5767 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5336fa88
SW		 5768 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5769 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
ee4bc9e7
SW		 5770 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5771 &params.chandef);
5772 if (err < 0) {
5773 return err;
5774 } else if (err) {
5775 radar_detect_width = BIT(params.chandef.width);
5776 params.radar_required = true;
5777 }
16ef1fe2
SW		 5778 }
5779
5780 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5781 params.chandef.chan,
5782 CHAN_MODE_SHARED,
5783 radar_detect_width);
5784 if (err)
5785 return err;
5786
5787 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5788 params.block_tx = true;
5789
5790 return rdev_channel_switch(rdev, dev, &params);
5791}
5792
9720bb3a
JB		 5793static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5794 u32 seq, int flags,
2a519311 5795 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5796 struct wireless_dev *wdev,
5797 struct cfg80211_internal_bss *intbss)
2a519311 5798{
48ab905d 5799 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5800 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5801 void *hdr;
5802 struct nlattr *bss;
8cef2c9d 5803 bool tsf = false;
48ab905d
JB		 5804
5805 ASSERT_WDEV_LOCK(wdev);
2a519311 5806
15e47304 5807 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5808 NL80211_CMD_NEW_SCAN_RESULTS);
5809 if (!hdr)
5810 return -1;
5811
9720bb3a
JB		 5812 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5813
97990a06
JB		 5814 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5815 goto nla_put_failure;
5816 if (wdev->netdev &&
9360ffd1
DM		 5817 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5818 goto nla_put_failure;
97990a06
JB		 5819 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5820 goto nla_put_failure;
2a519311
JB		 5821
5822 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5823 if (!bss)
5824 goto nla_put_failure;
9360ffd1 5825 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5826 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5827 goto nla_put_failure;
9caf0364
JB		 5828
5829 rcu_read_lock();
5830 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5831 if (ies) {
5832 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5833 goto fail_unlock_rcu;
5834 tsf = true;
5835 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5836 ies->len, ies->data))
5837 goto fail_unlock_rcu;
9caf0364
JB		 5838 }
5839 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5840 if (ies) {
5841 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5842 goto fail_unlock_rcu;
5843 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5844 ies->len, ies->data))
5845 goto fail_unlock_rcu;
9caf0364
JB		 5846 }
5847 rcu_read_unlock();
5848
9360ffd1
DM		 5849 if (res->beacon_interval &&
5850 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5851 goto nla_put_failure;
5852 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5853 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 5854 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 5855 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5856 jiffies_to_msecs(jiffies - intbss->ts)))
5857 goto nla_put_failure;
2a519311 5858
77965c97 5859 switch (rdev->wiphy.signal_type) {
2a519311 5860 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5861 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5862 goto nla_put_failure;
2a519311
JB		 5863 break;
5864 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5865 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5866 goto nla_put_failure;
2a519311
JB		 5867 break;
5868 default:
5869 break;
5870 }
5871
48ab905d 5872 switch (wdev->iftype) {
074ac8df 5873 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5874 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5875 if (intbss == wdev->current_bss &&
5876 nla_put_u32(msg, NL80211_BSS_STATUS,
5877 NL80211_BSS_STATUS_ASSOCIATED))
5878 goto nla_put_failure;
48ab905d
JB		 5879 break;
5880 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5881 if (intbss == wdev->current_bss &&
5882 nla_put_u32(msg, NL80211_BSS_STATUS,
5883 NL80211_BSS_STATUS_IBSS_JOINED))
5884 goto nla_put_failure;
48ab905d
JB		 5885 break;
5886 default:
5887 break;
5888 }
5889
2a519311
JB		 5890 nla_nest_end(msg, bss);
5891
5892 return genlmsg_end(msg, hdr);
5893
8cef2c9d
JB		 5894 fail_unlock_rcu:
5895 rcu_read_unlock();
2a519311
JB		 5896 nla_put_failure:
5897 genlmsg_cancel(msg, hdr);
5898 return -EMSGSIZE;
5899}
5900
97990a06 5901static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 5902{
48ab905d 5903 struct cfg80211_registered_device *rdev;
2a519311 5904 struct cfg80211_internal_bss *scan;
48ab905d 5905 struct wireless_dev *wdev;
97990a06 5906 int start = cb->args[2], idx = 0;
2a519311
JB		 5907 int err;
5908
97990a06 5909 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 5910 if (err)
5911 return err;
2a519311 5912
48ab905d
JB		 5913 wdev_lock(wdev);
5914 spin_lock_bh(&rdev->bss_lock);
5915 cfg80211_bss_expire(rdev);
5916
9720bb3a
JB		 5917 cb->seq = rdev->bss_generation;
5918
48ab905d 5919 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5920 if (++idx <= start)
5921 continue;
9720bb3a 5922 if (nl80211_send_bss(skb, cb,
2a519311 5923 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5924 rdev, wdev, scan) < 0) {
2a519311 5925 idx--;
67748893 5926 break;
2a519311
JB		 5927 }
5928 }
5929
48ab905d
JB		 5930 spin_unlock_bh(&rdev->bss_lock);
5931 wdev_unlock(wdev);
2a519311 5932
97990a06
JB		 5933 cb->args[2] = idx;
5934 nl80211_finish_wdev_dump(rdev);
2a519311 5935
67748893 5936 return skb->len;
2a519311
JB		 5937}
5938
15e47304 5939static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5940 int flags, struct net_device *dev,
5941 struct survey_info *survey)
5942{
5943 void *hdr;
5944 struct nlattr *infoattr;
5945
15e47304 5946 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5947 NL80211_CMD_NEW_SURVEY_RESULTS);
5948 if (!hdr)
5949 return -ENOMEM;
5950
9360ffd1
DM		 5951 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5952 goto nla_put_failure;
61fa713c
HS		 5953
5954 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5955 if (!infoattr)
5956 goto nla_put_failure;
5957
9360ffd1
DM		 5958 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5959 survey->channel->center_freq))
5960 goto nla_put_failure;
5961
5962 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5963 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5964 goto nla_put_failure;
5965 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5966 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5967 goto nla_put_failure;
5968 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5969 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5970 survey->channel_time))
5971 goto nla_put_failure;
5972 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5973 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5974 survey->channel_time_busy))
5975 goto nla_put_failure;
5976 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5977 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5978 survey->channel_time_ext_busy))
5979 goto nla_put_failure;
5980 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5981 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5982 survey->channel_time_rx))
5983 goto nla_put_failure;
5984 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5985 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5986 survey->channel_time_tx))
5987 goto nla_put_failure;
61fa713c
HS		 5988
5989 nla_nest_end(msg, infoattr);
5990
5991 return genlmsg_end(msg, hdr);
5992
5993 nla_put_failure:
5994 genlmsg_cancel(msg, hdr);
5995 return -EMSGSIZE;
5996}
5997
5998static int nl80211_dump_survey(struct sk_buff *skb,
5999 struct netlink_callback *cb)
6000{
6001 struct survey_info survey;
6002 struct cfg80211_registered_device *dev;
97990a06
JB		 6003 struct wireless_dev *wdev;
6004 int survey_idx = cb->args[2];
61fa713c
HS		 6005 int res;
6006
97990a06 6007 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
67748893
JB		 6008 if (res)
6009 return res;
61fa713c 6010
97990a06
JB		 6011 if (!wdev->netdev) {
6012 res = -EINVAL;
6013 goto out_err;
6014 }
6015
61fa713c
HS		 6016 if (!dev->ops->dump_survey) {
6017 res = -EOPNOTSUPP;
6018 goto out_err;
6019 }
6020
6021 while (1) {
180cdc79
LR		 6022 struct ieee80211_channel *chan;
6023
97990a06 6024 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6025 if (res == -ENOENT)
6026 break;
6027 if (res)
6028 goto out_err;
6029
180cdc79
LR		 6030 /* Survey without a channel doesn't make sense */
6031 if (!survey.channel) {
6032 res = -EINVAL;
6033 goto out;
6034 }
6035
6036 chan = ieee80211_get_channel(&dev->wiphy,
6037 survey.channel->center_freq);
6038 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6039 survey_idx++;
6040 continue;
6041 }
6042
61fa713c 6043 if (nl80211_send_survey(skb,
15e47304 6044 NETLINK_CB(cb->skb).portid,
61fa713c 6045 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6046 wdev->netdev, &survey) < 0)
61fa713c
HS		 6047 goto out;
6048 survey_idx++;
6049 }
6050
6051 out:
97990a06 6052 cb->args[2] = survey_idx;
61fa713c
HS		 6053 res = skb->len;
6054 out_err:
97990a06 6055 nl80211_finish_wdev_dump(dev);
61fa713c
HS		 6056 return res;
6057}
6058
b23aa676
SO		 6059static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6060{
6061 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6062 NL80211_WPA_VERSION_2));
6063}
6064
636a5d36
JM		 6065static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6066{
4c476991
JB		 6067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6068 struct net_device *dev = info->user_ptr[1];
19957bb3 6069 struct ieee80211_channel *chan;
e39e5b5e
JM		 6070 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6071 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6072 enum nl80211_auth_type auth_type;
fffd0934 6073 struct key_parse key;
d5cdfacb 6074 bool local_state_change;
636a5d36 6075
f4a11bb0
JB		 6076 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6077 return -EINVAL;
6078
6079 if (!info->attrs[NL80211_ATTR_MAC])
6080 return -EINVAL;
6081
1778092e
JM		 6082 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6083 return -EINVAL;
6084
19957bb3
JB		 6085 if (!info->attrs[NL80211_ATTR_SSID])
6086 return -EINVAL;
6087
6088 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6089 return -EINVAL;
6090
fffd0934
JB		 6091 err = nl80211_parse_key(info, &key);
6092 if (err)
6093 return err;
6094
6095 if (key.idx >= 0) {
e31b8213
JB		 6096 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6097 return -EINVAL;
fffd0934
JB		 6098 if (!key.p.key || !key.p.key_len)
6099 return -EINVAL;
6100 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6101 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6102 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6103 key.p.key_len != WLAN_KEY_LEN_WEP104))
6104 return -EINVAL;
6105 if (key.idx > 4)
6106 return -EINVAL;
6107 } else {
6108 key.p.key_len = 0;
6109 key.p.key = NULL;
6110 }
6111
afea0b7a
JB		 6112 if (key.idx >= 0) {
6113 int i;
6114 bool ok = false;
6115 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6116 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6117 ok = true;
6118 break;
6119 }
6120 }
4c476991
JB		 6121 if (!ok)
6122 return -EINVAL;
afea0b7a
JB		 6123 }
6124
4c476991
JB		 6125 if (!rdev->ops->auth)
6126 return -EOPNOTSUPP;
636a5d36 6127
074ac8df 6128 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6129 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6130 return -EOPNOTSUPP;
eec60b03 6131
19957bb3 6132 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 6133 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 6134 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6135 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6136 return -EINVAL;
636a5d36 6137
19957bb3
JB		 6138 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6139 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6140
6141 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6142 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6143 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6144 }
6145
19957bb3 6146 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6147 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6148 return -EINVAL;
636a5d36 6149
e39e5b5e
JM		 6150 if (auth_type == NL80211_AUTHTYPE_SAE &&
6151 !info->attrs[NL80211_ATTR_SAE_DATA])
6152 return -EINVAL;
6153
6154 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6155 if (auth_type != NL80211_AUTHTYPE_SAE)
6156 return -EINVAL;
6157 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6158 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6159 /* need to include at least Auth Transaction and Status Code */
6160 if (sae_data_len < 4)
6161 return -EINVAL;
6162 }
6163
d5cdfacb
JM		 6164 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6165
95de817b
JB		 6166 /*
6167 * Since we no longer track auth state, ignore
6168 * requests to only change local state.
6169 */
6170 if (local_state_change)
6171 return 0;
6172
91bf9b26
JB		 6173 wdev_lock(dev->ieee80211_ptr);
6174 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6175 ssid, ssid_len, ie, ie_len,
6176 key.p.key, key.p.key_len, key.idx,
6177 sae_data, sae_data_len);
6178 wdev_unlock(dev->ieee80211_ptr);
6179 return err;
636a5d36
JM		 6180}
6181
c0692b8f
JB		 6182static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6183 struct genl_info *info,
3dc27d25
JB		 6184 struct cfg80211_crypto_settings *settings,
6185 int cipher_limit)
b23aa676 6186{
c0b2bbd8
JB		 6187 memset(settings, 0, sizeof(*settings));
6188
b23aa676
SO		 6189 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6190
c0692b8f
JB		 6191 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6192 u16 proto;
6193 proto = nla_get_u16(
6194 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6195 settings->control_port_ethertype = cpu_to_be16(proto);
6196 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6197 proto != ETH_P_PAE)
6198 return -EINVAL;
6199 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6200 settings->control_port_no_encrypt = true;
6201 } else
6202 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6203
b23aa676
SO		 6204 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6205 void *data;
6206 int len, i;
6207
6208 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6209 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6210 settings->n_ciphers_pairwise = len / sizeof(u32);
6211
6212 if (len % sizeof(u32))
6213 return -EINVAL;
6214
3dc27d25 6215 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6216 return -EINVAL;
6217
6218 memcpy(settings->ciphers_pairwise, data, len);
6219
6220 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6221 if (!cfg80211_supported_cipher_suite(
6222 &rdev->wiphy,
b23aa676
SO		 6223 settings->ciphers_pairwise[i]))
6224 return -EINVAL;
6225 }
6226
6227 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6228 settings->cipher_group =
6229 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6230 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6231 settings->cipher_group))
b23aa676
SO		 6232 return -EINVAL;
6233 }
6234
6235 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6236 settings->wpa_versions =
6237 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6238 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6239 return -EINVAL;
6240 }
6241
6242 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6243 void *data;
6d30240e 6244 int len;
b23aa676
SO		 6245
6246 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6247 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6248 settings->n_akm_suites = len / sizeof(u32);
6249
6250 if (len % sizeof(u32))
6251 return -EINVAL;
6252
1b9ca027
JM		 6253 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6254 return -EINVAL;
6255
b23aa676 6256 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6257 }
6258
6259 return 0;
6260}
6261
636a5d36
JM		 6262static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6263{
4c476991
JB		 6264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6265 struct net_device *dev = info->user_ptr[1];
f444de05 6266 struct ieee80211_channel *chan;
f62fab73
JB		 6267 struct cfg80211_assoc_request req = {};
6268 const u8 *bssid, *ssid;
6269 int err, ssid_len = 0;
636a5d36 6270
f4a11bb0
JB		 6271 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6272 return -EINVAL;
6273
6274 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6275 !info->attrs[NL80211_ATTR_SSID] ||
6276 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6277 return -EINVAL;
6278
4c476991
JB		 6279 if (!rdev->ops->assoc)
6280 return -EOPNOTSUPP;
636a5d36 6281
074ac8df 6282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6284 return -EOPNOTSUPP;
eec60b03 6285
19957bb3 6286 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6287
19957bb3
JB		 6288 chan = ieee80211_get_channel(&rdev->wiphy,
6289 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 6290 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6291 return -EINVAL;
636a5d36 6292
19957bb3
JB		 6293 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6294 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6295
6296 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6297 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6298 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6299 }
6300
dc6382ce 6301 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6302 enum nl80211_mfp mfp =
dc6382ce 6303 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6304 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6305 req.use_mfp = true;
4c476991
JB		 6306 else if (mfp != NL80211_MFP_NO)
6307 return -EINVAL;
dc6382ce
JM		 6308 }
6309
3e5d7649 6310 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6311 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6312
7e7c8926 6313 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6314 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6315
6316 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6317 memcpy(&req.ht_capa_mask,
6318 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6319 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6320
6321 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6322 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6323 return -EINVAL;
f62fab73
JB		 6324 memcpy(&req.ht_capa,
6325 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6326 sizeof(req.ht_capa));
7e7c8926
BG		 6327 }
6328
ee2aca34 6329 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6330 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6331
6332 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6333 memcpy(&req.vht_capa_mask,
6334 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6335 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6336
6337 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6338 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6339 return -EINVAL;
f62fab73
JB		 6340 memcpy(&req.vht_capa,
6341 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6342 sizeof(req.vht_capa));
ee2aca34
JB		 6343 }
6344
f62fab73 6345 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6346 if (!err) {
6347 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6348 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6349 ssid, ssid_len, &req);
91bf9b26
JB		 6350 wdev_unlock(dev->ieee80211_ptr);
6351 }
636a5d36 6352
636a5d36
JM		 6353 return err;
6354}
6355
6356static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6357{
4c476991
JB		 6358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6359 struct net_device *dev = info->user_ptr[1];
19957bb3 6360 const u8 *ie = NULL, *bssid;
91bf9b26 6361 int ie_len = 0, err;
19957bb3 6362 u16 reason_code;
d5cdfacb 6363 bool local_state_change;
636a5d36 6364
f4a11bb0
JB		 6365 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6366 return -EINVAL;
6367
6368 if (!info->attrs[NL80211_ATTR_MAC])
6369 return -EINVAL;
6370
6371 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6372 return -EINVAL;
6373
4c476991
JB		 6374 if (!rdev->ops->deauth)
6375 return -EOPNOTSUPP;
636a5d36 6376
074ac8df 6377 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6378 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6379 return -EOPNOTSUPP;
eec60b03 6380
19957bb3 6381 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6382
19957bb3
JB		 6383 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6384 if (reason_code == 0) {
f4a11bb0 6385 /* Reason Code 0 is reserved */
4c476991 6386 return -EINVAL;
255e737e 6387 }
636a5d36
JM		 6388
6389 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6390 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6391 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6392 }
6393
d5cdfacb
JM		 6394 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6395
91bf9b26
JB		 6396 wdev_lock(dev->ieee80211_ptr);
6397 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6398 local_state_change);
6399 wdev_unlock(dev->ieee80211_ptr);
6400 return err;
636a5d36
JM		 6401}
6402
6403static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6404{
4c476991
JB		 6405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6406 struct net_device *dev = info->user_ptr[1];
19957bb3 6407 const u8 *ie = NULL, *bssid;
91bf9b26 6408 int ie_len = 0, err;
19957bb3 6409 u16 reason_code;
d5cdfacb 6410 bool local_state_change;
636a5d36 6411
f4a11bb0
JB		 6412 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6413 return -EINVAL;
6414
6415 if (!info->attrs[NL80211_ATTR_MAC])
6416 return -EINVAL;
6417
6418 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6419 return -EINVAL;
6420
4c476991
JB		 6421 if (!rdev->ops->disassoc)
6422 return -EOPNOTSUPP;
636a5d36 6423
074ac8df 6424 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6425 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6426 return -EOPNOTSUPP;
eec60b03 6427
19957bb3 6428 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6429
19957bb3
JB		 6430 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6431 if (reason_code == 0) {
f4a11bb0 6432 /* Reason Code 0 is reserved */
4c476991 6433 return -EINVAL;
255e737e 6434 }
636a5d36
JM		 6435
6436 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6437 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6438 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6439 }
6440
d5cdfacb
JM		 6441 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6442
91bf9b26
JB		 6443 wdev_lock(dev->ieee80211_ptr);
6444 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6445 local_state_change);
6446 wdev_unlock(dev->ieee80211_ptr);
6447 return err;
636a5d36
JM		 6448}
6449
dd5b4cc7
FF		 6450static bool
6451nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6452 int mcast_rate[IEEE80211_NUM_BANDS],
6453 int rateval)
6454{
6455 struct wiphy *wiphy = &rdev->wiphy;
6456 bool found = false;
6457 int band, i;
6458
6459 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6460 struct ieee80211_supported_band *sband;
6461
6462 sband = wiphy->bands[band];
6463 if (!sband)
6464 continue;
6465
6466 for (i = 0; i < sband->n_bitrates; i++) {
6467 if (sband->bitrates[i].bitrate == rateval) {
6468 mcast_rate[band] = i + 1;
6469 found = true;
6470 break;
6471 }
6472 }
6473 }
6474
6475 return found;
6476}
6477
04a773ad
JB		 6478static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6479{
4c476991
JB		 6480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6481 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6482 struct cfg80211_ibss_params ibss;
6483 struct wiphy *wiphy;
fffd0934 6484 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6485 int err;
6486
8e30bc55
JB		 6487 memset(&ibss, 0, sizeof(ibss));
6488
04a773ad
JB		 6489 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6490 return -EINVAL;
6491
683b6d3b 6492 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6493 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6494 return -EINVAL;
6495
8e30bc55
JB		 6496 ibss.beacon_interval = 100;
6497
6498 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6499 ibss.beacon_interval =
6500 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6501 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6502 return -EINVAL;
6503 }
6504
4c476991
JB		 6505 if (!rdev->ops->join_ibss)
6506 return -EOPNOTSUPP;
04a773ad 6507
4c476991
JB		 6508 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6509 return -EOPNOTSUPP;
04a773ad 6510
79c97e97 6511 wiphy = &rdev->wiphy;
04a773ad 6512
39193498 6513 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6514 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6515
6516 if (!is_valid_ether_addr(ibss.bssid))
6517 return -EINVAL;
6518 }
04a773ad
JB		 6519 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6520 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6521
6522 if (info->attrs[NL80211_ATTR_IE]) {
6523 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6524 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6525 }
6526
683b6d3b
JB		 6527 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6528 if (err)
6529 return err;
04a773ad 6530
683b6d3b 6531 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 6532 return -EINVAL;
6533
2f301ab2 6534 switch (ibss.chandef.width) {
bf372645
SW		 6535 case NL80211_CHAN_WIDTH_5:
6536 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6537 case NL80211_CHAN_WIDTH_20_NOHT:
6538 break;
6539 case NL80211_CHAN_WIDTH_20:
6540 case NL80211_CHAN_WIDTH_40:
6541 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6542 break;
6543 default:
c04d6150 6544 return -EINVAL;
2f301ab2 6545 }
db9c64cf 6546
04a773ad 6547 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6548 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6549
fbd2c8dc
TP		 6550 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6551 u8 *rates =
6552 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6553 int n_rates =
6554 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6555 struct ieee80211_supported_band *sband =
683b6d3b 6556 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6557
34850ab2
JB		 6558 err = ieee80211_get_ratemask(sband, rates, n_rates,
6559 &ibss.basic_rates);
6560 if (err)
6561 return err;
fbd2c8dc 6562 }
dd5b4cc7 6563
803768f5
SW		 6564 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6565 memcpy(&ibss.ht_capa_mask,
6566 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6567 sizeof(ibss.ht_capa_mask));
6568
6569 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6570 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6571 return -EINVAL;
6572 memcpy(&ibss.ht_capa,
6573 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6574 sizeof(ibss.ht_capa));
6575 }
6576
dd5b4cc7
FF		 6577 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6578 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6579 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6580 return -EINVAL;
fbd2c8dc 6581
4c476991 6582 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6583 bool no_ht = false;
6584
4c476991 6585 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6586 info->attrs[NL80211_ATTR_KEYS],
6587 &no_ht);
4c476991
JB		 6588 if (IS_ERR(connkeys))
6589 return PTR_ERR(connkeys);
de7044ee 6590
3d9d1d66
JB		 6591 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6592 no_ht) {
de7044ee
SM		 6593 kfree(connkeys);
6594 return -EINVAL;
6595 }
4c476991 6596 }
04a773ad 6597
267335d6
AQ		 6598 ibss.control_port =
6599 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6600
5336fa88
SW		 6601 ibss.userspace_handles_dfs =
6602 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6603
4c476991 6604 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 6605 if (err)
6606 kfree(connkeys);
04a773ad
JB		 6607 return err;
6608}
6609
6610static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6611{
4c476991
JB		 6612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6613 struct net_device *dev = info->user_ptr[1];
04a773ad 6614
4c476991
JB		 6615 if (!rdev->ops->leave_ibss)
6616 return -EOPNOTSUPP;
04a773ad 6617
4c476991
JB		 6618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6619 return -EOPNOTSUPP;
04a773ad 6620
4c476991 6621 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 6622}
6623
f4e583c8
AQ		 6624static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6625{
6626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6627 struct net_device *dev = info->user_ptr[1];
6628 int mcast_rate[IEEE80211_NUM_BANDS];
6629 u32 nla_rate;
6630 int err;
6631
6632 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6633 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6634 return -EOPNOTSUPP;
6635
6636 if (!rdev->ops->set_mcast_rate)
6637 return -EOPNOTSUPP;
6638
6639 memset(mcast_rate, 0, sizeof(mcast_rate));
6640
6641 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6642 return -EINVAL;
6643
6644 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6645 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6646 return -EINVAL;
6647
6648 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6649
6650 return err;
6651}
6652
6653
aff89a9b
JB		 6654#ifdef CONFIG_NL80211_TESTMODE
6655static struct genl_multicast_group nl80211_testmode_mcgrp = {
6656 .name = "testmode",
6657};
6658
6659static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6660{
4c476991 6661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 6662 struct wireless_dev *wdev =
6663 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 6664 int err;
6665
fc73f11f
DS		 6666 if (!rdev->ops->testmode_cmd)
6667 return -EOPNOTSUPP;
6668
6669 if (IS_ERR(wdev)) {
6670 err = PTR_ERR(wdev);
6671 if (err != -EINVAL)
6672 return err;
6673 wdev = NULL;
6674 } else if (wdev->wiphy != &rdev->wiphy) {
6675 return -EINVAL;
6676 }
6677
aff89a9b
JB		 6678 if (!info->attrs[NL80211_ATTR_TESTDATA])
6679 return -EINVAL;
6680
fc73f11f
DS		 6681 rdev->testmode_info = info;
6682 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 6683 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6684 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
fc73f11f 6685 rdev->testmode_info = NULL;
aff89a9b 6686
aff89a9b
JB		 6687 return err;
6688}
6689
71063f0e
WYG		 6690static int nl80211_testmode_dump(struct sk_buff *skb,
6691 struct netlink_callback *cb)
6692{
00918d33 6693 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6694 int err;
6695 long phy_idx;
6696 void *data = NULL;
6697 int data_len = 0;
6698
5fe231e8
JB		 6699 rtnl_lock();
6700
71063f0e
WYG		 6701 if (cb->args[0]) {
6702 /*
6703 * 0 is a valid index, but not valid for args[0],
6704 * so we need to offset by 1.
6705 */
6706 phy_idx = cb->args[0] - 1;
6707 } else {
6708 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6709 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6710 nl80211_policy);
6711 if (err)
5fe231e8 6712 goto out_err;
00918d33 6713
2bd7e35d
JB		 6714 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6715 nl80211_fam.attrbuf);
6716 if (IS_ERR(rdev)) {
5fe231e8
JB		 6717 err = PTR_ERR(rdev);
6718 goto out_err;
00918d33 6719 }
2bd7e35d
JB		 6720 phy_idx = rdev->wiphy_idx;
6721 rdev = NULL;
2bd7e35d 6722
71063f0e
WYG		 6723 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6724 cb->args[1] =
6725 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6726 }
6727
6728 if (cb->args[1]) {
6729 data = nla_data((void *)cb->args[1]);
6730 data_len = nla_len((void *)cb->args[1]);
6731 }
6732
00918d33
JB		 6733 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6734 if (!rdev) {
5fe231e8
JB		 6735 err = -ENOENT;
6736 goto out_err;
71063f0e 6737 }
71063f0e 6738
00918d33 6739 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6740 err = -EOPNOTSUPP;
6741 goto out_err;
6742 }
6743
6744 while (1) {
15e47304 6745 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6746 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6747 NL80211_CMD_TESTMODE);
6748 struct nlattr *tmdata;
6749
cb35fba3
DC		 6750 if (!hdr)
6751 break;
6752
9360ffd1 6753 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6754 genlmsg_cancel(skb, hdr);
6755 break;
6756 }
6757
6758 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6759 if (!tmdata) {
6760 genlmsg_cancel(skb, hdr);
6761 break;
6762 }
e35e4d28 6763 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6764 nla_nest_end(skb, tmdata);
6765
6766 if (err == -ENOBUFS || err == -ENOENT) {
6767 genlmsg_cancel(skb, hdr);
6768 break;
6769 } else if (err) {
6770 genlmsg_cancel(skb, hdr);
6771 goto out_err;
6772 }
6773
6774 genlmsg_end(skb, hdr);
6775 }
6776
6777 err = skb->len;
6778 /* see above */
6779 cb->args[0] = phy_idx + 1;
6780 out_err:
5fe231e8 6781 rtnl_unlock();
71063f0e
WYG		 6782 return err;
6783}
6784
aff89a9b
JB		 6785static struct sk_buff *
6786__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6787 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6788{
6789 struct sk_buff *skb;
6790 void *hdr;
6791 struct nlattr *data;
6792
6793 skb = nlmsg_new(approxlen + 100, gfp);
6794 if (!skb)
6795 return NULL;
6796
15e47304 6797 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6798 if (!hdr) {
6799 kfree_skb(skb);
6800 return NULL;
6801 }
6802
9360ffd1
DM		 6803 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6804 goto nla_put_failure;
aff89a9b
JB		 6805 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6806
6807 ((void **)skb->cb)[0] = rdev;
6808 ((void **)skb->cb)[1] = hdr;
6809 ((void **)skb->cb)[2] = data;
6810
6811 return skb;
6812
6813 nla_put_failure:
6814 kfree_skb(skb);
6815 return NULL;
6816}
6817
6818struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6819 int approxlen)
6820{
6821 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6822
6823 if (WARN_ON(!rdev->testmode_info))
6824 return NULL;
6825
6826 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6827 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6828 rdev->testmode_info->snd_seq,
6829 GFP_KERNEL);
6830}
6831EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6832
6833int cfg80211_testmode_reply(struct sk_buff *skb)
6834{
6835 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6836 void *hdr = ((void **)skb->cb)[1];
6837 struct nlattr *data = ((void **)skb->cb)[2];
6838
6839 if (WARN_ON(!rdev->testmode_info)) {
6840 kfree_skb(skb);
6841 return -EINVAL;
6842 }
6843
6844 nla_nest_end(skb, data);
6845 genlmsg_end(skb, hdr);
6846 return genlmsg_reply(skb, rdev->testmode_info);
6847}
6848EXPORT_SYMBOL(cfg80211_testmode_reply);
6849
6850struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6851 int approxlen, gfp_t gfp)
6852{
6853 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6854
6855 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6856}
6857EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6858
6859void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6860{
a0ec570f 6861 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
aff89a9b
JB		 6862 void *hdr = ((void **)skb->cb)[1];
6863 struct nlattr *data = ((void **)skb->cb)[2];
6864
6865 nla_nest_end(skb, data);
6866 genlmsg_end(skb, hdr);
a0ec570f
MK		 6867 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
6868 nl80211_testmode_mcgrp.id, gfp);
aff89a9b
JB		 6869}
6870EXPORT_SYMBOL(cfg80211_testmode_event);
6871#endif
6872
b23aa676
SO		 6873static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6874{
4c476991
JB		 6875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6876 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6877 struct cfg80211_connect_params connect;
6878 struct wiphy *wiphy;
fffd0934 6879 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6880 int err;
6881
6882 memset(&connect, 0, sizeof(connect));
6883
6884 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6885 return -EINVAL;
6886
6887 if (!info->attrs[NL80211_ATTR_SSID] ||
6888 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6889 return -EINVAL;
6890
6891 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6892 connect.auth_type =
6893 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6894 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6895 NL80211_CMD_CONNECT))
b23aa676
SO		 6896 return -EINVAL;
6897 } else
6898 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6899
6900 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6901
c0692b8f 6902 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6903 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6904 if (err)
6905 return err;
b23aa676 6906
074ac8df 6907 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6908 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6909 return -EOPNOTSUPP;
b23aa676 6910
79c97e97 6911 wiphy = &rdev->wiphy;
b23aa676 6912
4486ea98
BS		 6913 connect.bg_scan_period = -1;
6914 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6915 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6916 connect.bg_scan_period =
6917 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6918 }
6919
b23aa676
SO		 6920 if (info->attrs[NL80211_ATTR_MAC])
6921 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6922 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6923 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6924
6925 if (info->attrs[NL80211_ATTR_IE]) {
6926 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6927 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6928 }
6929
cee00a95
JM		 6930 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6931 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6932 if (connect.mfp != NL80211_MFP_REQUIRED &&
6933 connect.mfp != NL80211_MFP_NO)
6934 return -EINVAL;
6935 } else {
6936 connect.mfp = NL80211_MFP_NO;
6937 }
6938
b23aa676
SO		 6939 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6940 connect.channel =
6941 ieee80211_get_channel(wiphy,
6942 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6943 if (!connect.channel ||
4c476991
JB		 6944 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6945 return -EINVAL;
b23aa676
SO		 6946 }
6947
fffd0934
JB		 6948 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6949 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6950 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6951 if (IS_ERR(connkeys))
6952 return PTR_ERR(connkeys);
fffd0934
JB		 6953 }
6954
7e7c8926
BG		 6955 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6956 connect.flags |= ASSOC_REQ_DISABLE_HT;
6957
6958 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6959 memcpy(&connect.ht_capa_mask,
6960 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6961 sizeof(connect.ht_capa_mask));
6962
6963 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6964 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6965 kfree(connkeys);
7e7c8926 6966 return -EINVAL;
b4e4f47e 6967 }
7e7c8926
BG		 6968 memcpy(&connect.ht_capa,
6969 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6970 sizeof(connect.ht_capa));
6971 }
6972
ee2aca34
JB		 6973 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6974 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6975
6976 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6977 memcpy(&connect.vht_capa_mask,
6978 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6979 sizeof(connect.vht_capa_mask));
6980
6981 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6982 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6983 kfree(connkeys);
6984 return -EINVAL;
6985 }
6986 memcpy(&connect.vht_capa,
6987 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6988 sizeof(connect.vht_capa));
6989 }
6990
83739b03
JB		 6991 wdev_lock(dev->ieee80211_ptr);
6992 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6993 wdev_unlock(dev->ieee80211_ptr);
fffd0934
JB		 6994 if (err)
6995 kfree(connkeys);
b23aa676
SO		 6996 return err;
6997}
6998
6999static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7000{
4c476991
JB		 7001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7002 struct net_device *dev = info->user_ptr[1];
b23aa676 7003 u16 reason;
83739b03 7004 int ret;
b23aa676
SO		 7005
7006 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7007 reason = WLAN_REASON_DEAUTH_LEAVING;
7008 else
7009 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7010
7011 if (reason == 0)
7012 return -EINVAL;
7013
074ac8df 7014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7015 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7016 return -EOPNOTSUPP;
b23aa676 7017
83739b03
JB		 7018 wdev_lock(dev->ieee80211_ptr);
7019 ret = cfg80211_disconnect(rdev, dev, reason, true);
7020 wdev_unlock(dev->ieee80211_ptr);
7021 return ret;
b23aa676
SO		 7022}
7023
463d0183
JB		 7024static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7025{
4c476991 7026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7027 struct net *net;
7028 int err;
7029 u32 pid;
7030
7031 if (!info->attrs[NL80211_ATTR_PID])
7032 return -EINVAL;
7033
7034 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7035
463d0183 7036 net = get_net_ns_by_pid(pid);
4c476991
JB		 7037 if (IS_ERR(net))
7038 return PTR_ERR(net);
463d0183
JB		 7039
7040 err = 0;
7041
7042 /* check if anything to do */
4c476991
JB		 7043 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7044 err = cfg80211_switch_netns(rdev, net);
463d0183 7045
463d0183 7046 put_net(net);
463d0183
JB		 7047 return err;
7048}
7049
67fbb16b
SO		 7050static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7051{
4c476991 7052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7053 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7054 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7055 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7056 struct cfg80211_pmksa pmksa;
7057
7058 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7059
7060 if (!info->attrs[NL80211_ATTR_MAC])
7061 return -EINVAL;
7062
7063 if (!info->attrs[NL80211_ATTR_PMKID])
7064 return -EINVAL;
7065
67fbb16b
SO		 7066 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7067 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7068
074ac8df 7069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7070 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7071 return -EOPNOTSUPP;
67fbb16b
SO		 7072
7073 switch (info->genlhdr->cmd) {
7074 case NL80211_CMD_SET_PMKSA:
7075 rdev_ops = rdev->ops->set_pmksa;
7076 break;
7077 case NL80211_CMD_DEL_PMKSA:
7078 rdev_ops = rdev->ops->del_pmksa;
7079 break;
7080 default:
7081 WARN_ON(1);
7082 break;
7083 }
7084
4c476991
JB		 7085 if (!rdev_ops)
7086 return -EOPNOTSUPP;
67fbb16b 7087
4c476991 7088 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7089}
7090
7091static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7092{
4c476991
JB		 7093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7094 struct net_device *dev = info->user_ptr[1];
67fbb16b 7095
074ac8df 7096 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7097 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7098 return -EOPNOTSUPP;
67fbb16b 7099
4c476991
JB		 7100 if (!rdev->ops->flush_pmksa)
7101 return -EOPNOTSUPP;
67fbb16b 7102
e35e4d28 7103 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7104}
7105
109086ce
AN		 7106static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7107{
7108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7109 struct net_device *dev = info->user_ptr[1];
7110 u8 action_code, dialog_token;
7111 u16 status_code;
7112 u8 *peer;
7113
7114 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7115 !rdev->ops->tdls_mgmt)
7116 return -EOPNOTSUPP;
7117
7118 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7119 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7120 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7121 !info->attrs[NL80211_ATTR_IE] ||
7122 !info->attrs[NL80211_ATTR_MAC])
7123 return -EINVAL;
7124
7125 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7126 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7127 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7128 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7129
e35e4d28
HG		 7130 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7131 dialog_token, status_code,
7132 nla_data(info->attrs[NL80211_ATTR_IE]),
7133 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7134}
7135
7136static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7137{
7138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7139 struct net_device *dev = info->user_ptr[1];
7140 enum nl80211_tdls_operation operation;
7141 u8 *peer;
7142
7143 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7144 !rdev->ops->tdls_oper)
7145 return -EOPNOTSUPP;
7146
7147 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7148 !info->attrs[NL80211_ATTR_MAC])
7149 return -EINVAL;
7150
7151 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7152 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7153
e35e4d28 7154 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7155}
7156
9588bbd5
JM		 7157static int nl80211_remain_on_channel(struct sk_buff *skb,
7158 struct genl_info *info)
7159{
4c476991 7160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7161 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7162 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7163 struct sk_buff *msg;
7164 void *hdr;
7165 u64 cookie;
683b6d3b 7166 u32 duration;
9588bbd5
JM		 7167 int err;
7168
7169 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7170 !info->attrs[NL80211_ATTR_DURATION])
7171 return -EINVAL;
7172
7173 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7174
ebf348fc
JB		 7175 if (!rdev->ops->remain_on_channel ||
7176 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7177 return -EOPNOTSUPP;
7178
9588bbd5 7179 /*
ebf348fc
JB		 7180 * We should be on that channel for at least a minimum amount of
7181 * time (10ms) but no longer than the driver supports.
9588bbd5 7182 */
ebf348fc 7183 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7184 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7185 return -EINVAL;
7186
683b6d3b
JB		 7187 err = nl80211_parse_chandef(rdev, info, &chandef);
7188 if (err)
7189 return err;
9588bbd5
JM		 7190
7191 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7192 if (!msg)
7193 return -ENOMEM;
9588bbd5 7194
15e47304 7195 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7196 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7197 if (!hdr) {
7198 err = -ENOBUFS;
9588bbd5
JM		 7199 goto free_msg;
7200 }
7201
683b6d3b
JB		 7202 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7203 duration, &cookie);
9588bbd5
JM		 7204
7205 if (err)
7206 goto free_msg;
7207
9360ffd1
DM		 7208 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7209 goto nla_put_failure;
9588bbd5
JM		 7210
7211 genlmsg_end(msg, hdr);
4c476991
JB		 7212
7213 return genlmsg_reply(msg, info);
9588bbd5
JM		 7214
7215 nla_put_failure:
7216 err = -ENOBUFS;
7217 free_msg:
7218 nlmsg_free(msg);
9588bbd5
JM		 7219 return err;
7220}
7221
7222static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7223 struct genl_info *info)
7224{
4c476991 7225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7226 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7227 u64 cookie;
9588bbd5
JM		 7228
7229 if (!info->attrs[NL80211_ATTR_COOKIE])
7230 return -EINVAL;
7231
4c476991
JB		 7232 if (!rdev->ops->cancel_remain_on_channel)
7233 return -EOPNOTSUPP;
9588bbd5 7234
9588bbd5
JM		 7235 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7236
e35e4d28 7237 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7238}
7239
13ae75b1
JM		 7240static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7241 u8 *rates, u8 rates_len)
7242{
7243 u8 i;
7244 u32 mask = 0;
7245
7246 for (i = 0; i < rates_len; i++) {
7247 int rate = (rates[i] & 0x7f) * 5;
7248 int ridx;
7249 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7250 struct ieee80211_rate *srate =
7251 &sband->bitrates[ridx];
7252 if (rate == srate->bitrate) {
7253 mask |= 1 << ridx;
7254 break;
7255 }
7256 }
7257 if (ridx == sband->n_bitrates)
7258 return 0; /* rate not found */
7259 }
7260
7261 return mask;
7262}
7263
24db78c0
SW		 7264static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7265 u8 *rates, u8 rates_len,
7266 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7267{
7268 u8 i;
7269
7270 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7271
7272 for (i = 0; i < rates_len; i++) {
7273 int ridx, rbit;
7274
7275 ridx = rates[i] / 8;
7276 rbit = BIT(rates[i] % 8);
7277
7278 /* check validity */
910570b5 7279 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7280 return false;
7281
7282 /* check availability */
7283 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7284 mcs[ridx] |= rbit;
7285 else
7286 return false;
7287 }
7288
7289 return true;
7290}
7291
b54452b0 7292static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7293 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7294 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 7295 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7296 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 7297};
7298
7299static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7300 struct genl_info *info)
7301{
7302 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7304 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7305 int rem, i;
7306 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7307 struct nlattr *tx_rates;
7308 struct ieee80211_supported_band *sband;
7309
7310 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7311 return -EINVAL;
7312
4c476991
JB		 7313 if (!rdev->ops->set_bitrate_mask)
7314 return -EOPNOTSUPP;
13ae75b1
JM		 7315
7316 memset(&mask, 0, sizeof(mask));
7317 /* Default to all rates enabled */
7318 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7319 sband = rdev->wiphy.bands[i];
7320 mask.control[i].legacy =
7321 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 7322 if (sband)
7323 memcpy(mask.control[i].mcs,
7324 sband->ht_cap.mcs.rx_mask,
7325 sizeof(mask.control[i].mcs));
7326 else
7327 memset(mask.control[i].mcs, 0,
7328 sizeof(mask.control[i].mcs));
13ae75b1
JM		 7329 }
7330
7331 /*
7332 * The nested attribute uses enum nl80211_band as the index. This maps
7333 * directly to the enum ieee80211_band values used in cfg80211.
7334 */
24db78c0 7335 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 7336 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7337 {
7338 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 7339 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7340 return -EINVAL;
13ae75b1 7341 sband = rdev->wiphy.bands[band];
4c476991
JB		 7342 if (sband == NULL)
7343 return -EINVAL;
13ae75b1
JM		 7344 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7345 nla_len(tx_rates), nl80211_txattr_policy);
7346 if (tb[NL80211_TXRATE_LEGACY]) {
7347 mask.control[band].legacy = rateset_to_mask(
7348 sband,
7349 nla_data(tb[NL80211_TXRATE_LEGACY]),
7350 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7351 if ((mask.control[band].legacy == 0) &&
7352 nla_len(tb[NL80211_TXRATE_LEGACY]))
7353 return -EINVAL;
24db78c0
SW		 7354 }
7355 if (tb[NL80211_TXRATE_MCS]) {
7356 if (!ht_rateset_to_mask(
7357 sband,
7358 nla_data(tb[NL80211_TXRATE_MCS]),
7359 nla_len(tb[NL80211_TXRATE_MCS]),
7360 mask.control[band].mcs))
7361 return -EINVAL;
7362 }
7363
7364 if (mask.control[band].legacy == 0) {
7365 /* don't allow empty legacy rates if HT
7366 * is not even supported. */
7367 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7368 return -EINVAL;
7369
7370 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7371 if (mask.control[band].mcs[i])
7372 break;
7373
7374 /* legacy and mcs rates may not be both empty */
7375 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 7376 return -EINVAL;
13ae75b1
JM		 7377 }
7378 }
7379
e35e4d28 7380 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7381}
7382
2e161f78 7383static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7384{
4c476991 7385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7386 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7387 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7388
7389 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7390 return -EINVAL;
7391
2e161f78
JB		 7392 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7393 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7394
71bbc994
JB		 7395 switch (wdev->iftype) {
7396 case NL80211_IFTYPE_STATION:
7397 case NL80211_IFTYPE_ADHOC:
7398 case NL80211_IFTYPE_P2P_CLIENT:
7399 case NL80211_IFTYPE_AP:
7400 case NL80211_IFTYPE_AP_VLAN:
7401 case NL80211_IFTYPE_MESH_POINT:
7402 case NL80211_IFTYPE_P2P_GO:
98104fde 7403 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7404 break;
7405 default:
4c476991 7406 return -EOPNOTSUPP;
71bbc994 7407 }
026331c4
JM		 7408
7409 /* not much point in registering if we can't reply */
4c476991
JB		 7410 if (!rdev->ops->mgmt_tx)
7411 return -EOPNOTSUPP;
026331c4 7412
15e47304 7413 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7414 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7415 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7416}
7417
2e161f78 7418static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7419{
4c476991 7420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7421 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7422 struct cfg80211_chan_def chandef;
026331c4 7423 int err;
d64d373f 7424 void *hdr = NULL;
026331c4 7425 u64 cookie;
e247bd90 7426 struct sk_buff *msg = NULL;
f7ca38df 7427 unsigned int wait = 0;
e247bd90
JB		 7428 bool offchan, no_cck, dont_wait_for_ack;
7429
7430 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 7431
683b6d3b 7432 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7433 return -EINVAL;
7434
4c476991
JB		 7435 if (!rdev->ops->mgmt_tx)
7436 return -EOPNOTSUPP;
026331c4 7437
71bbc994 7438 switch (wdev->iftype) {
ea141b75
AQ		 7439 case NL80211_IFTYPE_P2P_DEVICE:
7440 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7441 return -EINVAL;
71bbc994
JB		 7442 case NL80211_IFTYPE_STATION:
7443 case NL80211_IFTYPE_ADHOC:
7444 case NL80211_IFTYPE_P2P_CLIENT:
7445 case NL80211_IFTYPE_AP:
7446 case NL80211_IFTYPE_AP_VLAN:
7447 case NL80211_IFTYPE_MESH_POINT:
7448 case NL80211_IFTYPE_P2P_GO:
7449 break;
7450 default:
4c476991 7451 return -EOPNOTSUPP;
71bbc994 7452 }
026331c4 7453
f7ca38df 7454 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7455 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 7456 return -EINVAL;
7457 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7458
7459 /*
7460 * We should wait on the channel for at least a minimum amount
7461 * of time (10ms) but no longer than the driver supports.
7462 */
7463 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7464 wait > rdev->wiphy.max_remain_on_channel_duration)
7465 return -EINVAL;
7466
f7ca38df
JB		 7467 }
7468
f7ca38df
JB		 7469 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7470
7c4ef712
JB		 7471 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7472 return -EINVAL;
7473
e9f935e3
RM		 7474 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7475
ea141b75
AQ		 7476 /* get the channel if any has been specified, otherwise pass NULL to
7477 * the driver. The latter will use the current one
7478 */
7479 chandef.chan = NULL;
7480 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7481 err = nl80211_parse_chandef(rdev, info, &chandef);
7482 if (err)
7483 return err;
7484 }
7485
7486 if (!chandef.chan && offchan)
7487 return -EINVAL;
026331c4 7488
e247bd90
JB		 7489 if (!dont_wait_for_ack) {
7490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7491 if (!msg)
7492 return -ENOMEM;
026331c4 7493
15e47304 7494 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 7495 NL80211_CMD_FRAME);
cb35fba3
DC		 7496 if (!hdr) {
7497 err = -ENOBUFS;
e247bd90
JB		 7498 goto free_msg;
7499 }
026331c4 7500 }
e247bd90 7501
683b6d3b 7502 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 7503 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7504 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 7505 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 7506 if (err)
7507 goto free_msg;
7508
e247bd90 7509 if (msg) {
9360ffd1
DM		 7510 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7511 goto nla_put_failure;
026331c4 7512
e247bd90
JB		 7513 genlmsg_end(msg, hdr);
7514 return genlmsg_reply(msg, info);
7515 }
7516
7517 return 0;
026331c4
JM		 7518
7519 nla_put_failure:
7520 err = -ENOBUFS;
7521 free_msg:
7522 nlmsg_free(msg);
026331c4
JM		 7523 return err;
7524}
7525
f7ca38df
JB		 7526static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7527{
7528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7529 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 7530 u64 cookie;
7531
7532 if (!info->attrs[NL80211_ATTR_COOKIE])
7533 return -EINVAL;
7534
7535 if (!rdev->ops->mgmt_tx_cancel_wait)
7536 return -EOPNOTSUPP;
7537
71bbc994
JB		 7538 switch (wdev->iftype) {
7539 case NL80211_IFTYPE_STATION:
7540 case NL80211_IFTYPE_ADHOC:
7541 case NL80211_IFTYPE_P2P_CLIENT:
7542 case NL80211_IFTYPE_AP:
7543 case NL80211_IFTYPE_AP_VLAN:
7544 case NL80211_IFTYPE_P2P_GO:
98104fde 7545 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7546 break;
7547 default:
f7ca38df 7548 return -EOPNOTSUPP;
71bbc994 7549 }
f7ca38df
JB		 7550
7551 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7552
e35e4d28 7553 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 7554}
7555
ffb9eb3d
KV		 7556static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7557{
4c476991 7558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 7559 struct wireless_dev *wdev;
4c476991 7560 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7561 u8 ps_state;
7562 bool state;
7563 int err;
7564
4c476991
JB		 7565 if (!info->attrs[NL80211_ATTR_PS_STATE])
7566 return -EINVAL;
ffb9eb3d
KV		 7567
7568 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7569
4c476991
JB		 7570 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7571 return -EINVAL;
ffb9eb3d
KV		 7572
7573 wdev = dev->ieee80211_ptr;
7574
4c476991
JB		 7575 if (!rdev->ops->set_power_mgmt)
7576 return -EOPNOTSUPP;
ffb9eb3d
KV		 7577
7578 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7579
7580 if (state == wdev->ps)
4c476991 7581 return 0;
ffb9eb3d 7582
e35e4d28 7583 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 7584 if (!err)
7585 wdev->ps = state;
ffb9eb3d
KV		 7586 return err;
7587}
7588
7589static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7590{
4c476991 7591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 7592 enum nl80211_ps_state ps_state;
7593 struct wireless_dev *wdev;
4c476991 7594 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 7595 struct sk_buff *msg;
7596 void *hdr;
7597 int err;
7598
ffb9eb3d
KV		 7599 wdev = dev->ieee80211_ptr;
7600
4c476991
JB		 7601 if (!rdev->ops->set_power_mgmt)
7602 return -EOPNOTSUPP;
ffb9eb3d
KV		 7603
7604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7605 if (!msg)
7606 return -ENOMEM;
ffb9eb3d 7607
15e47304 7608 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 7609 NL80211_CMD_GET_POWER_SAVE);
7610 if (!hdr) {
4c476991 7611 err = -ENOBUFS;
ffb9eb3d
KV		 7612 goto free_msg;
7613 }
7614
7615 if (wdev->ps)
7616 ps_state = NL80211_PS_ENABLED;
7617 else
7618 ps_state = NL80211_PS_DISABLED;
7619
9360ffd1
DM		 7620 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7621 goto nla_put_failure;
ffb9eb3d
KV		 7622
7623 genlmsg_end(msg, hdr);
4c476991 7624 return genlmsg_reply(msg, info);
ffb9eb3d 7625
4c476991 7626 nla_put_failure:
ffb9eb3d 7627 err = -ENOBUFS;
4c476991 7628 free_msg:
ffb9eb3d 7629 nlmsg_free(msg);
ffb9eb3d
KV		 7630 return err;
7631}
7632
d6dc1a38
JO		 7633static struct nla_policy
7634nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7635 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7636 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7637 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 7638 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7639 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7640 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 7641};
7642
84f10708 7643static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 7644 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 7645{
7646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 7647 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7648 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 7649
d9d8b019 7650 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 7651 return -EINVAL;
7652
84f10708
TP		 7653 if (!rdev->ops->set_cqm_txe_config)
7654 return -EOPNOTSUPP;
7655
7656 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7657 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7658 return -EOPNOTSUPP;
7659
e35e4d28 7660 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 7661}
7662
d6dc1a38
JO		 7663static int nl80211_set_cqm_rssi(struct genl_info *info,
7664 s32 threshold, u32 hysteresis)
7665{
4c476991 7666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 7667 struct net_device *dev = info->user_ptr[1];
1da5fcc8 7668 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 7669
7670 if (threshold > 0)
7671 return -EINVAL;
7672
1da5fcc8
JB		 7673 /* disabling - hysteresis should also be zero then */
7674 if (threshold == 0)
7675 hysteresis = 0;
d6dc1a38 7676
4c476991
JB		 7677 if (!rdev->ops->set_cqm_rssi_config)
7678 return -EOPNOTSUPP;
d6dc1a38 7679
074ac8df 7680 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7681 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7682 return -EOPNOTSUPP;
d6dc1a38 7683
e35e4d28 7684 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7685}
7686
7687static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7688{
7689 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7690 struct nlattr *cqm;
7691 int err;
7692
7693 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 7694 if (!cqm)
7695 return -EINVAL;
d6dc1a38
JO		 7696
7697 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7698 nl80211_attr_cqm_policy);
7699 if (err)
1da5fcc8 7700 return err;
d6dc1a38
JO		 7701
7702 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7703 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 7704 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7705 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 7706
1da5fcc8
JB		 7707 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7708 }
7709
7710 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7711 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7712 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7713 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7714 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7715 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7716
7717 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7718 }
7719
7720 return -EINVAL;
d6dc1a38
JO		 7721}
7722
29cbe68c
JB		 7723static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7724{
7725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7726 struct net_device *dev = info->user_ptr[1];
7727 struct mesh_config cfg;
c80d545d 7728 struct mesh_setup setup;
29cbe68c
JB		 7729 int err;
7730
7731 /* start with default */
7732 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7733 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7734
24bdd9f4 7735 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7736 /* and parse parameters if given */
24bdd9f4 7737 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7738 if (err)
7739 return err;
7740 }
7741
7742 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7743 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7744 return -EINVAL;
7745
c80d545d
JC		 7746 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7747 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7748
4bb62344
CYY		 7749 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7750 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7751 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7752 return -EINVAL;
7753
9bdbf04d
MP		 7754 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7755 setup.beacon_interval =
7756 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7757 if (setup.beacon_interval < 10 ||
7758 setup.beacon_interval > 10000)
7759 return -EINVAL;
7760 }
7761
7762 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7763 setup.dtim_period =
7764 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7765 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7766 return -EINVAL;
7767 }
7768
c80d545d
JC		 7769 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7770 /* parse additional setup parameters if given */
7771 err = nl80211_parse_mesh_setup(info, &setup);
7772 if (err)
7773 return err;
7774 }
7775
d37bb18a
TP		 7776 if (setup.user_mpm)
7777 cfg.auto_open_plinks = false;
7778
cc1d2806 7779 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7780 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7781 if (err)
7782 return err;
cc1d2806
JB		 7783 } else {
7784 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7785 setup.chandef.chan = NULL;
cc1d2806
JB		 7786 }
7787
ffb3cf30
AN		 7788 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7789 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7790 int n_rates =
7791 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7792 struct ieee80211_supported_band *sband;
7793
7794 if (!setup.chandef.chan)
7795 return -EINVAL;
7796
7797 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7798
7799 err = ieee80211_get_ratemask(sband, rates, n_rates,
7800 &setup.basic_rates);
7801 if (err)
7802 return err;
7803 }
7804
c80d545d 7805 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7806}
7807
7808static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7809{
7810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7811 struct net_device *dev = info->user_ptr[1];
7812
7813 return cfg80211_leave_mesh(rdev, dev);
7814}
7815
dfb89c56 7816#ifdef CONFIG_PM
bb92d199
AK		 7817static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7818 struct cfg80211_registered_device *rdev)
7819{
6abb9cb9 7820 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 7821 struct nlattr *nl_pats, *nl_pat;
7822 int i, pat_len;
7823
6abb9cb9 7824 if (!wowlan->n_patterns)
bb92d199
AK		 7825 return 0;
7826
7827 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7828 if (!nl_pats)
7829 return -ENOBUFS;
7830
6abb9cb9 7831 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 7832 nl_pat = nla_nest_start(msg, i + 1);
7833 if (!nl_pat)
7834 return -ENOBUFS;
6abb9cb9 7835 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 7836 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 7837 wowlan->patterns[i].mask) ||
50ac6607
AK		 7838 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7839 wowlan->patterns[i].pattern) ||
7840 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 7841 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 7842 return -ENOBUFS;
7843 nla_nest_end(msg, nl_pat);
7844 }
7845 nla_nest_end(msg, nl_pats);
7846
7847 return 0;
7848}
7849
2a0e047e
JB		 7850static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7851 struct cfg80211_wowlan_tcp *tcp)
7852{
7853 struct nlattr *nl_tcp;
7854
7855 if (!tcp)
7856 return 0;
7857
7858 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7859 if (!nl_tcp)
7860 return -ENOBUFS;
7861
7862 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7863 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7864 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7865 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7866 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7867 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7868 tcp->payload_len, tcp->payload) ||
7869 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7870 tcp->data_interval) ||
7871 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7872 tcp->wake_len, tcp->wake_data) ||
7873 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7874 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7875 return -ENOBUFS;
7876
7877 if (tcp->payload_seq.len &&
7878 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7879 sizeof(tcp->payload_seq), &tcp->payload_seq))
7880 return -ENOBUFS;
7881
7882 if (tcp->payload_tok.len &&
7883 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7884 sizeof(tcp->payload_tok) + tcp->tokens_size,
7885 &tcp->payload_tok))
7886 return -ENOBUFS;
7887
e248ad30
JB		 7888 nla_nest_end(msg, nl_tcp);
7889
2a0e047e
JB		 7890 return 0;
7891}
7892
ff1b6e69
JB		 7893static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7894{
7895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7896 struct sk_buff *msg;
7897 void *hdr;
2a0e047e 7898 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7899
964dc9e2 7900 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 7901 return -EOPNOTSUPP;
7902
6abb9cb9 7903 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 7904 /* adjust size to have room for all the data */
6abb9cb9
JB		 7905 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7906 rdev->wiphy.wowlan_config->tcp->payload_len +
7907 rdev->wiphy.wowlan_config->tcp->wake_len +
7908 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 7909 }
7910
7911 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7912 if (!msg)
7913 return -ENOMEM;
7914
15e47304 7915 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7916 NL80211_CMD_GET_WOWLAN);
7917 if (!hdr)
7918 goto nla_put_failure;
7919
6abb9cb9 7920 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 7921 struct nlattr *nl_wowlan;
7922
7923 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7924 if (!nl_wowlan)
7925 goto nla_put_failure;
7926
6abb9cb9 7927 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 7928 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 7929 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 7930 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 7931 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 7932 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 7933 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 7934 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 7935 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 7936 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 7937 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 7938 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 7939 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 7940 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7941 goto nla_put_failure;
2a0e047e 7942
bb92d199
AK		 7943 if (nl80211_send_wowlan_patterns(msg, rdev))
7944 goto nla_put_failure;
2a0e047e 7945
6abb9cb9
JB		 7946 if (nl80211_send_wowlan_tcp(msg,
7947 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 7948 goto nla_put_failure;
7949
ff1b6e69
JB		 7950 nla_nest_end(msg, nl_wowlan);
7951 }
7952
7953 genlmsg_end(msg, hdr);
7954 return genlmsg_reply(msg, info);
7955
7956nla_put_failure:
7957 nlmsg_free(msg);
7958 return -ENOBUFS;
7959}
7960
2a0e047e
JB		 7961static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7962 struct nlattr *attr,
7963 struct cfg80211_wowlan *trig)
7964{
7965 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7966 struct cfg80211_wowlan_tcp *cfg;
7967 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7968 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7969 u32 size;
7970 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7971 int err, port;
7972
964dc9e2 7973 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 7974 return -EINVAL;
7975
7976 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7977 nla_data(attr), nla_len(attr),
7978 nl80211_wowlan_tcp_policy);
7979 if (err)
7980 return err;
7981
7982 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7983 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7984 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7985 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7986 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7987 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7988 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7989 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7990 return -EINVAL;
7991
7992 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 7993 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 7994 return -EINVAL;
7995
7996 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 7997 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 7998 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 7999 return -EINVAL;
8000
8001 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8002 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8003 return -EINVAL;
8004
8005 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8006 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8007 return -EINVAL;
8008
8009 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8010 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8011
8012 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8013 tokens_size = tokln - sizeof(*tok);
8014
8015 if (!tok->len || tokens_size % tok->len)
8016 return -EINVAL;
964dc9e2 8017 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8018 return -EINVAL;
964dc9e2 8019 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8020 return -EINVAL;
964dc9e2 8021 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8022 return -EINVAL;
964dc9e2 8023 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8024 return -EINVAL;
8025 if (tok->offset + tok->len > data_size)
8026 return -EINVAL;
8027 }
8028
8029 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8030 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8031 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8032 return -EINVAL;
8033 if (seq->len == 0 || seq->len > 4)
8034 return -EINVAL;
8035 if (seq->len + seq->offset > data_size)
8036 return -EINVAL;
8037 }
8038
8039 size = sizeof(*cfg);
8040 size += data_size;
8041 size += wake_size + wake_mask_size;
8042 size += tokens_size;
8043
8044 cfg = kzalloc(size, GFP_KERNEL);
8045 if (!cfg)
8046 return -ENOMEM;
8047 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8048 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8049 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8050 ETH_ALEN);
8051 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8052 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8053 else
8054 port = 0;
8055#ifdef CONFIG_INET
8056 /* allocate a socket and port for it and use it */
8057 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8058 IPPROTO_TCP, &cfg->sock, 1);
8059 if (err) {
8060 kfree(cfg);
8061 return err;
8062 }
8063 if (inet_csk_get_port(cfg->sock->sk, port)) {
8064 sock_release(cfg->sock);
8065 kfree(cfg);
8066 return -EADDRINUSE;
8067 }
8068 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8069#else
8070 if (!port) {
8071 kfree(cfg);
8072 return -EINVAL;
8073 }
8074 cfg->src_port = port;
8075#endif
8076
8077 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8078 cfg->payload_len = data_size;
8079 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8080 memcpy((void *)cfg->payload,
8081 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8082 data_size);
8083 if (seq)
8084 cfg->payload_seq = *seq;
8085 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8086 cfg->wake_len = wake_size;
8087 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8088 memcpy((void *)cfg->wake_data,
8089 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8090 wake_size);
8091 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8092 data_size + wake_size;
8093 memcpy((void *)cfg->wake_mask,
8094 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8095 wake_mask_size);
8096 if (tok) {
8097 cfg->tokens_size = tokens_size;
8098 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8099 }
8100
8101 trig->tcp = cfg;
8102
8103 return 0;
8104}
8105
ff1b6e69
JB		 8106static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8107{
8108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8109 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8110 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8111 struct cfg80211_wowlan *ntrig;
964dc9e2 8112 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8113 int err, i;
6abb9cb9 8114 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8115
964dc9e2 8116 if (!wowlan)
ff1b6e69
JB		 8117 return -EOPNOTSUPP;
8118
ae33bd81
JB		 8119 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8120 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8121 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8122 goto set_wakeup;
8123 }
ff1b6e69
JB		 8124
8125 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8126 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8127 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8128 nl80211_wowlan_policy);
8129 if (err)
8130 return err;
8131
8132 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8133 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8134 return -EINVAL;
8135 new_triggers.any = true;
8136 }
8137
8138 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8139 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8140 return -EINVAL;
8141 new_triggers.disconnect = true;
8142 }
8143
8144 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8145 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8146 return -EINVAL;
8147 new_triggers.magic_pkt = true;
8148 }
8149
77dbbb13
JB		 8150 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8151 return -EINVAL;
8152
8153 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8154 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8155 return -EINVAL;
8156 new_triggers.gtk_rekey_failure = true;
8157 }
8158
8159 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8160 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8161 return -EINVAL;
8162 new_triggers.eap_identity_req = true;
8163 }
8164
8165 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8166 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8167 return -EINVAL;
8168 new_triggers.four_way_handshake = true;
8169 }
8170
8171 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8172 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8173 return -EINVAL;
8174 new_triggers.rfkill_release = true;
8175 }
8176
ff1b6e69
JB		 8177 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8178 struct nlattr *pat;
8179 int n_patterns = 0;
bb92d199 8180 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8181 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8182
8183 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8184 rem)
8185 n_patterns++;
8186 if (n_patterns > wowlan->n_patterns)
8187 return -EINVAL;
8188
8189 new_triggers.patterns = kcalloc(n_patterns,
8190 sizeof(new_triggers.patterns[0]),
8191 GFP_KERNEL);
8192 if (!new_triggers.patterns)
8193 return -ENOMEM;
8194
8195 new_triggers.n_patterns = n_patterns;
8196 i = 0;
8197
8198 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8199 rem) {
50ac6607
AK		 8200 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8201 nla_len(pat), NULL);
ff1b6e69 8202 err = -EINVAL;
50ac6607
AK		 8203 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8204 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8205 goto error;
50ac6607 8206 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8207 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8208 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8209 goto error;
8210 if (pat_len > wowlan->pattern_max_len ||
8211 pat_len < wowlan->pattern_min_len)
8212 goto error;
8213
50ac6607 8214 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8215 pkt_offset = 0;
8216 else
8217 pkt_offset = nla_get_u32(
50ac6607 8218 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8219 if (pkt_offset > wowlan->max_pkt_offset)
8220 goto error;
8221 new_triggers.patterns[i].pkt_offset = pkt_offset;
8222
ff1b6e69
JB		 8223 new_triggers.patterns[i].mask =
8224 kmalloc(mask_len + pat_len, GFP_KERNEL);
8225 if (!new_triggers.patterns[i].mask) {
8226 err = -ENOMEM;
8227 goto error;
8228 }
8229 new_triggers.patterns[i].pattern =
8230 new_triggers.patterns[i].mask + mask_len;
8231 memcpy(new_triggers.patterns[i].mask,
50ac6607 8232 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69
JB		 8233 mask_len);
8234 new_triggers.patterns[i].pattern_len = pat_len;
8235 memcpy(new_triggers.patterns[i].pattern,
50ac6607 8236 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8237 pat_len);
8238 i++;
8239 }
8240 }
8241
2a0e047e
JB		 8242 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8243 err = nl80211_parse_wowlan_tcp(
8244 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8245 &new_triggers);
8246 if (err)
8247 goto error;
8248 }
8249
ae33bd81
JB		 8250 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8251 if (!ntrig) {
8252 err = -ENOMEM;
8253 goto error;
ff1b6e69 8254 }
ae33bd81 8255 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8256 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8257
ae33bd81 8258 set_wakeup:
6abb9cb9
JB		 8259 if (rdev->ops->set_wakeup &&
8260 prev_enabled != !!rdev->wiphy.wowlan_config)
8261 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8262
ff1b6e69
JB		 8263 return 0;
8264 error:
8265 for (i = 0; i < new_triggers.n_patterns; i++)
8266 kfree(new_triggers.patterns[i].mask);
8267 kfree(new_triggers.patterns);
2a0e047e
JB		 8268 if (new_triggers.tcp && new_triggers.tcp->sock)
8269 sock_release(new_triggers.tcp->sock);
8270 kfree(new_triggers.tcp);
ff1b6e69
JB		 8271 return err;
8272}
dfb89c56 8273#endif
ff1b6e69 8274
be29b99a
AK		 8275static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8276 struct cfg80211_registered_device *rdev)
8277{
8278 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8279 int i, j, pat_len;
8280 struct cfg80211_coalesce_rules *rule;
8281
8282 if (!rdev->coalesce->n_rules)
8283 return 0;
8284
8285 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8286 if (!nl_rules)
8287 return -ENOBUFS;
8288
8289 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8290 nl_rule = nla_nest_start(msg, i + 1);
8291 if (!nl_rule)
8292 return -ENOBUFS;
8293
8294 rule = &rdev->coalesce->rules[i];
8295 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8296 rule->delay))
8297 return -ENOBUFS;
8298
8299 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8300 rule->condition))
8301 return -ENOBUFS;
8302
8303 nl_pats = nla_nest_start(msg,
8304 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8305 if (!nl_pats)
8306 return -ENOBUFS;
8307
8308 for (j = 0; j < rule->n_patterns; j++) {
8309 nl_pat = nla_nest_start(msg, j + 1);
8310 if (!nl_pat)
8311 return -ENOBUFS;
8312 pat_len = rule->patterns[j].pattern_len;
8313 if (nla_put(msg, NL80211_PKTPAT_MASK,
8314 DIV_ROUND_UP(pat_len, 8),
8315 rule->patterns[j].mask) ||
8316 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8317 rule->patterns[j].pattern) ||
8318 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8319 rule->patterns[j].pkt_offset))
8320 return -ENOBUFS;
8321 nla_nest_end(msg, nl_pat);
8322 }
8323 nla_nest_end(msg, nl_pats);
8324 nla_nest_end(msg, nl_rule);
8325 }
8326 nla_nest_end(msg, nl_rules);
8327
8328 return 0;
8329}
8330
8331static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8332{
8333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8334 struct sk_buff *msg;
8335 void *hdr;
8336
8337 if (!rdev->wiphy.coalesce)
8338 return -EOPNOTSUPP;
8339
8340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8341 if (!msg)
8342 return -ENOMEM;
8343
8344 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8345 NL80211_CMD_GET_COALESCE);
8346 if (!hdr)
8347 goto nla_put_failure;
8348
8349 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8350 goto nla_put_failure;
8351
8352 genlmsg_end(msg, hdr);
8353 return genlmsg_reply(msg, info);
8354
8355nla_put_failure:
8356 nlmsg_free(msg);
8357 return -ENOBUFS;
8358}
8359
8360void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8361{
8362 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8363 int i, j;
8364 struct cfg80211_coalesce_rules *rule;
8365
8366 if (!coalesce)
8367 return;
8368
8369 for (i = 0; i < coalesce->n_rules; i++) {
8370 rule = &coalesce->rules[i];
8371 for (j = 0; j < rule->n_patterns; j++)
8372 kfree(rule->patterns[j].mask);
8373 kfree(rule->patterns);
8374 }
8375 kfree(coalesce->rules);
8376 kfree(coalesce);
8377 rdev->coalesce = NULL;
8378}
8379
8380static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8381 struct nlattr *rule,
8382 struct cfg80211_coalesce_rules *new_rule)
8383{
8384 int err, i;
8385 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8386 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8387 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8388 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8389
8390 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8391 nla_len(rule), nl80211_coalesce_policy);
8392 if (err)
8393 return err;
8394
8395 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8396 new_rule->delay =
8397 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8398 if (new_rule->delay > coalesce->max_delay)
8399 return -EINVAL;
8400
8401 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8402 new_rule->condition =
8403 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8404 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8405 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8406 return -EINVAL;
8407
8408 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8409 return -EINVAL;
8410
8411 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8412 rem)
8413 n_patterns++;
8414 if (n_patterns > coalesce->n_patterns)
8415 return -EINVAL;
8416
8417 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8418 GFP_KERNEL);
8419 if (!new_rule->patterns)
8420 return -ENOMEM;
8421
8422 new_rule->n_patterns = n_patterns;
8423 i = 0;
8424
8425 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8426 rem) {
8427 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8428 nla_len(pat), NULL);
8429 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8430 !pat_tb[NL80211_PKTPAT_PATTERN])
8431 return -EINVAL;
8432 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8433 mask_len = DIV_ROUND_UP(pat_len, 8);
8434 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8435 return -EINVAL;
8436 if (pat_len > coalesce->pattern_max_len ||
8437 pat_len < coalesce->pattern_min_len)
8438 return -EINVAL;
8439
8440 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8441 pkt_offset = 0;
8442 else
8443 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8444 if (pkt_offset > coalesce->max_pkt_offset)
8445 return -EINVAL;
8446 new_rule->patterns[i].pkt_offset = pkt_offset;
8447
8448 new_rule->patterns[i].mask =
8449 kmalloc(mask_len + pat_len, GFP_KERNEL);
8450 if (!new_rule->patterns[i].mask)
8451 return -ENOMEM;
8452 new_rule->patterns[i].pattern =
8453 new_rule->patterns[i].mask + mask_len;
8454 memcpy(new_rule->patterns[i].mask,
8455 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8456 new_rule->patterns[i].pattern_len = pat_len;
8457 memcpy(new_rule->patterns[i].pattern,
8458 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8459 i++;
8460 }
8461
8462 return 0;
8463}
8464
8465static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8466{
8467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8468 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8469 struct cfg80211_coalesce new_coalesce = {};
8470 struct cfg80211_coalesce *n_coalesce;
8471 int err, rem_rule, n_rules = 0, i, j;
8472 struct nlattr *rule;
8473 struct cfg80211_coalesce_rules *tmp_rule;
8474
8475 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8476 return -EOPNOTSUPP;
8477
8478 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8479 cfg80211_rdev_free_coalesce(rdev);
8480 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8481 return 0;
8482 }
8483
8484 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8485 rem_rule)
8486 n_rules++;
8487 if (n_rules > coalesce->n_rules)
8488 return -EINVAL;
8489
8490 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8491 GFP_KERNEL);
8492 if (!new_coalesce.rules)
8493 return -ENOMEM;
8494
8495 new_coalesce.n_rules = n_rules;
8496 i = 0;
8497
8498 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8499 rem_rule) {
8500 err = nl80211_parse_coalesce_rule(rdev, rule,
8501 &new_coalesce.rules[i]);
8502 if (err)
8503 goto error;
8504
8505 i++;
8506 }
8507
8508 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8509 if (err)
8510 goto error;
8511
8512 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8513 if (!n_coalesce) {
8514 err = -ENOMEM;
8515 goto error;
8516 }
8517 cfg80211_rdev_free_coalesce(rdev);
8518 rdev->coalesce = n_coalesce;
8519
8520 return 0;
8521error:
8522 for (i = 0; i < new_coalesce.n_rules; i++) {
8523 tmp_rule = &new_coalesce.rules[i];
8524 for (j = 0; j < tmp_rule->n_patterns; j++)
8525 kfree(tmp_rule->patterns[j].mask);
8526 kfree(tmp_rule->patterns);
8527 }
8528 kfree(new_coalesce.rules);
8529
8530 return err;
8531}
8532
e5497d76
JB		 8533static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8534{
8535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8536 struct net_device *dev = info->user_ptr[1];
8537 struct wireless_dev *wdev = dev->ieee80211_ptr;
8538 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8539 struct cfg80211_gtk_rekey_data rekey_data;
8540 int err;
8541
8542 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8543 return -EINVAL;
8544
8545 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8546 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8547 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8548 nl80211_rekey_policy);
8549 if (err)
8550 return err;
8551
8552 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8553 return -ERANGE;
8554 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8555 return -ERANGE;
8556 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8557 return -ERANGE;
8558
8559 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8560 NL80211_KEK_LEN);
8561 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8562 NL80211_KCK_LEN);
8563 memcpy(rekey_data.replay_ctr,
8564 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8565 NL80211_REPLAY_CTR_LEN);
8566
8567 wdev_lock(wdev);
8568 if (!wdev->current_bss) {
8569 err = -ENOTCONN;
8570 goto out;
8571 }
8572
8573 if (!rdev->ops->set_rekey_data) {
8574 err = -EOPNOTSUPP;
8575 goto out;
8576 }
8577
e35e4d28 8578 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 8579 out:
8580 wdev_unlock(wdev);
8581 return err;
8582}
8583
28946da7
JB		 8584static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8585 struct genl_info *info)
8586{
8587 struct net_device *dev = info->user_ptr[1];
8588 struct wireless_dev *wdev = dev->ieee80211_ptr;
8589
8590 if (wdev->iftype != NL80211_IFTYPE_AP &&
8591 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8592 return -EINVAL;
8593
15e47304 8594 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 8595 return -EBUSY;
8596
15e47304 8597 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 8598 return 0;
8599}
8600
7f6cf311
JB		 8601static int nl80211_probe_client(struct sk_buff *skb,
8602 struct genl_info *info)
8603{
8604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8605 struct net_device *dev = info->user_ptr[1];
8606 struct wireless_dev *wdev = dev->ieee80211_ptr;
8607 struct sk_buff *msg;
8608 void *hdr;
8609 const u8 *addr;
8610 u64 cookie;
8611 int err;
8612
8613 if (wdev->iftype != NL80211_IFTYPE_AP &&
8614 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8615 return -EOPNOTSUPP;
8616
8617 if (!info->attrs[NL80211_ATTR_MAC])
8618 return -EINVAL;
8619
8620 if (!rdev->ops->probe_client)
8621 return -EOPNOTSUPP;
8622
8623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8624 if (!msg)
8625 return -ENOMEM;
8626
15e47304 8627 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 8628 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 8629 if (!hdr) {
8630 err = -ENOBUFS;
7f6cf311
JB		 8631 goto free_msg;
8632 }
8633
8634 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8635
e35e4d28 8636 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 8637 if (err)
8638 goto free_msg;
8639
9360ffd1
DM		 8640 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8641 goto nla_put_failure;
7f6cf311
JB		 8642
8643 genlmsg_end(msg, hdr);
8644
8645 return genlmsg_reply(msg, info);
8646
8647 nla_put_failure:
8648 err = -ENOBUFS;
8649 free_msg:
8650 nlmsg_free(msg);
8651 return err;
8652}
8653
5e760230
JB		 8654static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8655{
8656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 8657 struct cfg80211_beacon_registration *reg, *nreg;
8658 int rv;
5e760230
JB		 8659
8660 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8661 return -EOPNOTSUPP;
8662
37c73b5f
BG		 8663 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8664 if (!nreg)
8665 return -ENOMEM;
8666
8667 /* First, check if already registered. */
8668 spin_lock_bh(&rdev->beacon_registrations_lock);
8669 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8670 if (reg->nlportid == info->snd_portid) {
8671 rv = -EALREADY;
8672 goto out_err;
8673 }
8674 }
8675 /* Add it to the list */
8676 nreg->nlportid = info->snd_portid;
8677 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 8678
37c73b5f 8679 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 8680
8681 return 0;
37c73b5f
BG		 8682out_err:
8683 spin_unlock_bh(&rdev->beacon_registrations_lock);
8684 kfree(nreg);
8685 return rv;
5e760230
JB		 8686}
8687
98104fde
JB		 8688static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8689{
8690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8691 struct wireless_dev *wdev = info->user_ptr[1];
8692 int err;
8693
8694 if (!rdev->ops->start_p2p_device)
8695 return -EOPNOTSUPP;
8696
8697 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8698 return -EOPNOTSUPP;
8699
8700 if (wdev->p2p_started)
8701 return 0;
8702
98104fde 8703 err = cfg80211_can_add_interface(rdev, wdev->iftype);
98104fde
JB		 8704 if (err)
8705 return err;
8706
eeb126e9 8707 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 8708 if (err)
8709 return err;
8710
8711 wdev->p2p_started = true;
98104fde 8712 rdev->opencount++;
98104fde
JB		 8713
8714 return 0;
8715}
8716
8717static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8718{
8719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8720 struct wireless_dev *wdev = info->user_ptr[1];
8721
8722 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8723 return -EOPNOTSUPP;
8724
8725 if (!rdev->ops->stop_p2p_device)
8726 return -EOPNOTSUPP;
8727
f9f47529 8728 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 8729
8730 return 0;
8731}
8732
3713b4e3
JB		 8733static int nl80211_get_protocol_features(struct sk_buff *skb,
8734 struct genl_info *info)
8735{
8736 void *hdr;
8737 struct sk_buff *msg;
8738
8739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8740 if (!msg)
8741 return -ENOMEM;
8742
8743 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8744 NL80211_CMD_GET_PROTOCOL_FEATURES);
8745 if (!hdr)
8746 goto nla_put_failure;
8747
8748 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8749 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8750 goto nla_put_failure;
8751
8752 genlmsg_end(msg, hdr);
8753 return genlmsg_reply(msg, info);
8754
8755 nla_put_failure:
8756 kfree_skb(msg);
8757 return -ENOBUFS;
8758}
8759
355199e0
JM		 8760static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8761{
8762 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8763 struct cfg80211_update_ft_ies_params ft_params;
8764 struct net_device *dev = info->user_ptr[1];
8765
8766 if (!rdev->ops->update_ft_ies)
8767 return -EOPNOTSUPP;
8768
8769 if (!info->attrs[NL80211_ATTR_MDID] ||
8770 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8771 return -EINVAL;
8772
8773 memset(&ft_params, 0, sizeof(ft_params));
8774 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8775 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8776 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8777
8778 return rdev_update_ft_ies(rdev, dev, &ft_params);
8779}
8780
5de17984
AS		 8781static int nl80211_crit_protocol_start(struct sk_buff *skb,
8782 struct genl_info *info)
8783{
8784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8785 struct wireless_dev *wdev = info->user_ptr[1];
8786 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8787 u16 duration;
8788 int ret;
8789
8790 if (!rdev->ops->crit_proto_start)
8791 return -EOPNOTSUPP;
8792
8793 if (WARN_ON(!rdev->ops->crit_proto_stop))
8794 return -EINVAL;
8795
8796 if (rdev->crit_proto_nlportid)
8797 return -EBUSY;
8798
8799 /* determine protocol if provided */
8800 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8801 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8802
8803 if (proto >= NUM_NL80211_CRIT_PROTO)
8804 return -EINVAL;
8805
8806 /* timeout must be provided */
8807 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8808 return -EINVAL;
8809
8810 duration =
8811 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8812
8813 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8814 return -ERANGE;
8815
8816 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8817 if (!ret)
8818 rdev->crit_proto_nlportid = info->snd_portid;
8819
8820 return ret;
8821}
8822
8823static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8824 struct genl_info *info)
8825{
8826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8827 struct wireless_dev *wdev = info->user_ptr[1];
8828
8829 if (!rdev->ops->crit_proto_stop)
8830 return -EOPNOTSUPP;
8831
8832 if (rdev->crit_proto_nlportid) {
8833 rdev->crit_proto_nlportid = 0;
8834 rdev_crit_proto_stop(rdev, wdev);
8835 }
8836 return 0;
8837}
8838
4c476991
JB		 8839#define NL80211_FLAG_NEED_WIPHY 0x01
8840#define NL80211_FLAG_NEED_NETDEV 0x02
8841#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 8842#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8843#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8844 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 8845#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 8846/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 8847#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8848 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 8849
8850static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8851 struct genl_info *info)
8852{
8853 struct cfg80211_registered_device *rdev;
89a54e48 8854 struct wireless_dev *wdev;
4c476991 8855 struct net_device *dev;
4c476991
JB		 8856 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8857
8858 if (rtnl)
8859 rtnl_lock();
8860
8861 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 8862 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 8863 if (IS_ERR(rdev)) {
8864 if (rtnl)
8865 rtnl_unlock();
8866 return PTR_ERR(rdev);
8867 }
8868 info->user_ptr[0] = rdev;
1bf614ef
JB		 8869 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8870 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 8871 ASSERT_RTNL();
8872
89a54e48
JB		 8873 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8874 info->attrs);
8875 if (IS_ERR(wdev)) {
4c476991
JB		 8876 if (rtnl)
8877 rtnl_unlock();
89a54e48 8878 return PTR_ERR(wdev);
4c476991 8879 }
89a54e48 8880
89a54e48
JB		 8881 dev = wdev->netdev;
8882 rdev = wiphy_to_dev(wdev->wiphy);
8883
1bf614ef
JB		 8884 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8885 if (!dev) {
1bf614ef
JB		 8886 if (rtnl)
8887 rtnl_unlock();
8888 return -EINVAL;
8889 }
8890
8891 info->user_ptr[1] = dev;
8892 } else {
8893 info->user_ptr[1] = wdev;
41265714 8894 }
1bf614ef
JB		 8895
8896 if (dev) {
8897 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8898 !netif_running(dev)) {
1bf614ef
JB		 8899 if (rtnl)
8900 rtnl_unlock();
8901 return -ENETDOWN;
8902 }
8903
8904 dev_hold(dev);
98104fde
JB		 8905 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8906 if (!wdev->p2p_started) {
98104fde
JB		 8907 if (rtnl)
8908 rtnl_unlock();
8909 return -ENETDOWN;
8910 }
41265714 8911 }
89a54e48 8912
4c476991 8913 info->user_ptr[0] = rdev;
4c476991
JB		 8914 }
8915
8916 return 0;
8917}
8918
8919static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8920 struct genl_info *info)
8921{
1bf614ef
JB		 8922 if (info->user_ptr[1]) {
8923 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8924 struct wireless_dev *wdev = info->user_ptr[1];
8925
8926 if (wdev->netdev)
8927 dev_put(wdev->netdev);
8928 } else {
8929 dev_put(info->user_ptr[1]);
8930 }
8931 }
4c476991
JB		 8932 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8933 rtnl_unlock();
8934}
8935
55682965
JB		 8936static struct genl_ops nl80211_ops[] = {
8937 {
8938 .cmd = NL80211_CMD_GET_WIPHY,
8939 .doit = nl80211_get_wiphy,
8940 .dumpit = nl80211_dump_wiphy,
86e8cf98 8941 .done = nl80211_dump_wiphy_done,
55682965
JB		 8942 .policy = nl80211_policy,
8943 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8944 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8945 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8946 },
8947 {
8948 .cmd = NL80211_CMD_SET_WIPHY,
8949 .doit = nl80211_set_wiphy,
8950 .policy = nl80211_policy,
8951 .flags = GENL_ADMIN_PERM,
4c476991 8952 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 8953 },
8954 {
8955 .cmd = NL80211_CMD_GET_INTERFACE,
8956 .doit = nl80211_get_interface,
8957 .dumpit = nl80211_dump_interface,
8958 .policy = nl80211_policy,
8959 /* can be retrieved by unprivileged users */
5fe231e8
JB		 8960 .internal_flags = NL80211_FLAG_NEED_WDEV |
8961 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8962 },
8963 {
8964 .cmd = NL80211_CMD_SET_INTERFACE,
8965 .doit = nl80211_set_interface,
8966 .policy = nl80211_policy,
8967 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8968 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8969 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8970 },
8971 {
8972 .cmd = NL80211_CMD_NEW_INTERFACE,
8973 .doit = nl80211_new_interface,
8974 .policy = nl80211_policy,
8975 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8976 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8977 NL80211_FLAG_NEED_RTNL,
55682965
JB		 8978 },
8979 {
8980 .cmd = NL80211_CMD_DEL_INTERFACE,
8981 .doit = nl80211_del_interface,
8982 .policy = nl80211_policy,
41ade00f 8983 .flags = GENL_ADMIN_PERM,
84efbb84 8984 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8985 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8986 },
8987 {
8988 .cmd = NL80211_CMD_GET_KEY,
8989 .doit = nl80211_get_key,
8990 .policy = nl80211_policy,
8991 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8992 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8993 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 8994 },
8995 {
8996 .cmd = NL80211_CMD_SET_KEY,
8997 .doit = nl80211_set_key,
8998 .policy = nl80211_policy,
8999 .flags = GENL_ADMIN_PERM,
41265714 9000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9001 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9002 },
9003 {
9004 .cmd = NL80211_CMD_NEW_KEY,
9005 .doit = nl80211_new_key,
9006 .policy = nl80211_policy,
9007 .flags = GENL_ADMIN_PERM,
41265714 9008 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9009 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9010 },
9011 {
9012 .cmd = NL80211_CMD_DEL_KEY,
9013 .doit = nl80211_del_key,
9014 .policy = nl80211_policy,
55682965 9015 .flags = GENL_ADMIN_PERM,
41265714 9016 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9017 NL80211_FLAG_NEED_RTNL,
55682965 9018 },
ed1b6cc7
JB		 9019 {
9020 .cmd = NL80211_CMD_SET_BEACON,
9021 .policy = nl80211_policy,
9022 .flags = GENL_ADMIN_PERM,
8860020e 9023 .doit = nl80211_set_beacon,
2b5f8b0b 9024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9025 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9026 },
9027 {
8860020e 9028 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9029 .policy = nl80211_policy,
9030 .flags = GENL_ADMIN_PERM,
8860020e 9031 .doit = nl80211_start_ap,
2b5f8b0b 9032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9033 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9034 },
9035 {
8860020e 9036 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9037 .policy = nl80211_policy,
9038 .flags = GENL_ADMIN_PERM,
8860020e 9039 .doit = nl80211_stop_ap,
2b5f8b0b 9040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9041 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9042 },
5727ef1b
JB		 9043 {
9044 .cmd = NL80211_CMD_GET_STATION,
9045 .doit = nl80211_get_station,
2ec600d6 9046 .dumpit = nl80211_dump_station,
5727ef1b 9047 .policy = nl80211_policy,
4c476991
JB		 9048 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9049 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9050 },
9051 {
9052 .cmd = NL80211_CMD_SET_STATION,
9053 .doit = nl80211_set_station,
9054 .policy = nl80211_policy,
9055 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9057 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9058 },
9059 {
9060 .cmd = NL80211_CMD_NEW_STATION,
9061 .doit = nl80211_new_station,
9062 .policy = nl80211_policy,
9063 .flags = GENL_ADMIN_PERM,
41265714 9064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9065 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9066 },
9067 {
9068 .cmd = NL80211_CMD_DEL_STATION,
9069 .doit = nl80211_del_station,
9070 .policy = nl80211_policy,
2ec600d6 9071 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9073 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9074 },
9075 {
9076 .cmd = NL80211_CMD_GET_MPATH,
9077 .doit = nl80211_get_mpath,
9078 .dumpit = nl80211_dump_mpath,
9079 .policy = nl80211_policy,
9080 .flags = GENL_ADMIN_PERM,
41265714 9081 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9082 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9083 },
9084 {
9085 .cmd = NL80211_CMD_SET_MPATH,
9086 .doit = nl80211_set_mpath,
9087 .policy = nl80211_policy,
9088 .flags = GENL_ADMIN_PERM,
41265714 9089 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9090 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9091 },
9092 {
9093 .cmd = NL80211_CMD_NEW_MPATH,
9094 .doit = nl80211_new_mpath,
9095 .policy = nl80211_policy,
9096 .flags = GENL_ADMIN_PERM,
41265714 9097 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9098 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9099 },
9100 {
9101 .cmd = NL80211_CMD_DEL_MPATH,
9102 .doit = nl80211_del_mpath,
9103 .policy = nl80211_policy,
9f1ba906 9104 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9105 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9106 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9107 },
9108 {
9109 .cmd = NL80211_CMD_SET_BSS,
9110 .doit = nl80211_set_bss,
9111 .policy = nl80211_policy,
b2e1b302 9112 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9113 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9114 NL80211_FLAG_NEED_RTNL,
b2e1b302 9115 },
f130347c
LR		 9116 {
9117 .cmd = NL80211_CMD_GET_REG,
9118 .doit = nl80211_get_reg,
9119 .policy = nl80211_policy,
5fe231e8 9120 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9121 /* can be retrieved by unprivileged users */
9122 },
b2e1b302
LR		 9123 {
9124 .cmd = NL80211_CMD_SET_REG,
9125 .doit = nl80211_set_reg,
9126 .policy = nl80211_policy,
9127 .flags = GENL_ADMIN_PERM,
5fe231e8 9128 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9129 },
9130 {
9131 .cmd = NL80211_CMD_REQ_SET_REG,
9132 .doit = nl80211_req_set_reg,
9133 .policy = nl80211_policy,
93da9cc1 9134 .flags = GENL_ADMIN_PERM,
9135 },
9136 {
24bdd9f4
JC		 9137 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9138 .doit = nl80211_get_mesh_config,
93da9cc1 9139 .policy = nl80211_policy,
9140 /* can be retrieved by unprivileged users */
2b5f8b0b 9141 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9142 NL80211_FLAG_NEED_RTNL,
93da9cc1 9143 },
9144 {
24bdd9f4
JC		 9145 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9146 .doit = nl80211_update_mesh_config,
93da9cc1 9147 .policy = nl80211_policy,
9aed3cc1 9148 .flags = GENL_ADMIN_PERM,
29cbe68c 9149 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9150 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9151 },
2a519311
JB		 9152 {
9153 .cmd = NL80211_CMD_TRIGGER_SCAN,
9154 .doit = nl80211_trigger_scan,
9155 .policy = nl80211_policy,
9156 .flags = GENL_ADMIN_PERM,
fd014284 9157 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9158 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9159 },
9160 {
9161 .cmd = NL80211_CMD_GET_SCAN,
9162 .policy = nl80211_policy,
9163 .dumpit = nl80211_dump_scan,
9164 },
807f8a8c
LC		 9165 {
9166 .cmd = NL80211_CMD_START_SCHED_SCAN,
9167 .doit = nl80211_start_sched_scan,
9168 .policy = nl80211_policy,
9169 .flags = GENL_ADMIN_PERM,
9170 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9171 NL80211_FLAG_NEED_RTNL,
9172 },
9173 {
9174 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9175 .doit = nl80211_stop_sched_scan,
9176 .policy = nl80211_policy,
9177 .flags = GENL_ADMIN_PERM,
9178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9179 NL80211_FLAG_NEED_RTNL,
9180 },
636a5d36
JM		 9181 {
9182 .cmd = NL80211_CMD_AUTHENTICATE,
9183 .doit = nl80211_authenticate,
9184 .policy = nl80211_policy,
9185 .flags = GENL_ADMIN_PERM,
41265714 9186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9187 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9188 },
9189 {
9190 .cmd = NL80211_CMD_ASSOCIATE,
9191 .doit = nl80211_associate,
9192 .policy = nl80211_policy,
9193 .flags = GENL_ADMIN_PERM,
41265714 9194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9195 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9196 },
9197 {
9198 .cmd = NL80211_CMD_DEAUTHENTICATE,
9199 .doit = nl80211_deauthenticate,
9200 .policy = nl80211_policy,
9201 .flags = GENL_ADMIN_PERM,
41265714 9202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9203 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9204 },
9205 {
9206 .cmd = NL80211_CMD_DISASSOCIATE,
9207 .doit = nl80211_disassociate,
9208 .policy = nl80211_policy,
9209 .flags = GENL_ADMIN_PERM,
41265714 9210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9211 NL80211_FLAG_NEED_RTNL,
636a5d36 9212 },
04a773ad
JB		 9213 {
9214 .cmd = NL80211_CMD_JOIN_IBSS,
9215 .doit = nl80211_join_ibss,
9216 .policy = nl80211_policy,
9217 .flags = GENL_ADMIN_PERM,
41265714 9218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9219 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 9220 },
9221 {
9222 .cmd = NL80211_CMD_LEAVE_IBSS,
9223 .doit = nl80211_leave_ibss,
9224 .policy = nl80211_policy,
9225 .flags = GENL_ADMIN_PERM,
41265714 9226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9227 NL80211_FLAG_NEED_RTNL,
04a773ad 9228 },
aff89a9b
JB		 9229#ifdef CONFIG_NL80211_TESTMODE
9230 {
9231 .cmd = NL80211_CMD_TESTMODE,
9232 .doit = nl80211_testmode_do,
71063f0e 9233 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 9234 .policy = nl80211_policy,
9235 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9236 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9237 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 9238 },
9239#endif
b23aa676
SO		 9240 {
9241 .cmd = NL80211_CMD_CONNECT,
9242 .doit = nl80211_connect,
9243 .policy = nl80211_policy,
9244 .flags = GENL_ADMIN_PERM,
41265714 9245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9246 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 9247 },
9248 {
9249 .cmd = NL80211_CMD_DISCONNECT,
9250 .doit = nl80211_disconnect,
9251 .policy = nl80211_policy,
9252 .flags = GENL_ADMIN_PERM,
41265714 9253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9254 NL80211_FLAG_NEED_RTNL,
b23aa676 9255 },
463d0183
JB		 9256 {
9257 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9258 .doit = nl80211_wiphy_netns,
9259 .policy = nl80211_policy,
9260 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9261 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9262 NL80211_FLAG_NEED_RTNL,
463d0183 9263 },
61fa713c
HS		 9264 {
9265 .cmd = NL80211_CMD_GET_SURVEY,
9266 .policy = nl80211_policy,
9267 .dumpit = nl80211_dump_survey,
9268 },
67fbb16b
SO		 9269 {
9270 .cmd = NL80211_CMD_SET_PMKSA,
9271 .doit = nl80211_setdel_pmksa,
9272 .policy = nl80211_policy,
9273 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9274 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9275 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9276 },
9277 {
9278 .cmd = NL80211_CMD_DEL_PMKSA,
9279 .doit = nl80211_setdel_pmksa,
9280 .policy = nl80211_policy,
9281 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9283 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 9284 },
9285 {
9286 .cmd = NL80211_CMD_FLUSH_PMKSA,
9287 .doit = nl80211_flush_pmksa,
9288 .policy = nl80211_policy,
9289 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9290 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9291 NL80211_FLAG_NEED_RTNL,
67fbb16b 9292 },
9588bbd5
JM		 9293 {
9294 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9295 .doit = nl80211_remain_on_channel,
9296 .policy = nl80211_policy,
9297 .flags = GENL_ADMIN_PERM,
71bbc994 9298 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9299 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 9300 },
9301 {
9302 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9303 .doit = nl80211_cancel_remain_on_channel,
9304 .policy = nl80211_policy,
9305 .flags = GENL_ADMIN_PERM,
71bbc994 9306 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9307 NL80211_FLAG_NEED_RTNL,
9588bbd5 9308 },
13ae75b1
JM		 9309 {
9310 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9311 .doit = nl80211_set_tx_bitrate_mask,
9312 .policy = nl80211_policy,
9313 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9314 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9315 NL80211_FLAG_NEED_RTNL,
13ae75b1 9316 },
026331c4 9317 {
2e161f78
JB		 9318 .cmd = NL80211_CMD_REGISTER_FRAME,
9319 .doit = nl80211_register_mgmt,
026331c4
JM		 9320 .policy = nl80211_policy,
9321 .flags = GENL_ADMIN_PERM,
71bbc994 9322 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9323 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 9324 },
9325 {
2e161f78
JB		 9326 .cmd = NL80211_CMD_FRAME,
9327 .doit = nl80211_tx_mgmt,
026331c4 9328 .policy = nl80211_policy,
f7ca38df 9329 .flags = GENL_ADMIN_PERM,
71bbc994 9330 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 9331 NL80211_FLAG_NEED_RTNL,
9332 },
9333 {
9334 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9335 .doit = nl80211_tx_mgmt_cancel_wait,
9336 .policy = nl80211_policy,
026331c4 9337 .flags = GENL_ADMIN_PERM,
71bbc994 9338 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9339 NL80211_FLAG_NEED_RTNL,
026331c4 9340 },
ffb9eb3d
KV		 9341 {
9342 .cmd = NL80211_CMD_SET_POWER_SAVE,
9343 .doit = nl80211_set_power_save,
9344 .policy = nl80211_policy,
9345 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9346 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9347 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 9348 },
9349 {
9350 .cmd = NL80211_CMD_GET_POWER_SAVE,
9351 .doit = nl80211_get_power_save,
9352 .policy = nl80211_policy,
9353 /* can be retrieved by unprivileged users */
4c476991
JB		 9354 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9355 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 9356 },
d6dc1a38
JO		 9357 {
9358 .cmd = NL80211_CMD_SET_CQM,
9359 .doit = nl80211_set_cqm,
9360 .policy = nl80211_policy,
9361 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9362 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9363 NL80211_FLAG_NEED_RTNL,
d6dc1a38 9364 },
f444de05
JB		 9365 {
9366 .cmd = NL80211_CMD_SET_CHANNEL,
9367 .doit = nl80211_set_channel,
9368 .policy = nl80211_policy,
9369 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9370 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9371 NL80211_FLAG_NEED_RTNL,
f444de05 9372 },
e8347eba
BJ		 9373 {
9374 .cmd = NL80211_CMD_SET_WDS_PEER,
9375 .doit = nl80211_set_wds_peer,
9376 .policy = nl80211_policy,
9377 .flags = GENL_ADMIN_PERM,
43b19952
JB		 9378 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9379 NL80211_FLAG_NEED_RTNL,
e8347eba 9380 },
29cbe68c
JB		 9381 {
9382 .cmd = NL80211_CMD_JOIN_MESH,
9383 .doit = nl80211_join_mesh,
9384 .policy = nl80211_policy,
9385 .flags = GENL_ADMIN_PERM,
9386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9387 NL80211_FLAG_NEED_RTNL,
9388 },
9389 {
9390 .cmd = NL80211_CMD_LEAVE_MESH,
9391 .doit = nl80211_leave_mesh,
9392 .policy = nl80211_policy,
9393 .flags = GENL_ADMIN_PERM,
9394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9395 NL80211_FLAG_NEED_RTNL,
9396 },
dfb89c56 9397#ifdef CONFIG_PM
ff1b6e69
JB		 9398 {
9399 .cmd = NL80211_CMD_GET_WOWLAN,
9400 .doit = nl80211_get_wowlan,
9401 .policy = nl80211_policy,
9402 /* can be retrieved by unprivileged users */
9403 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9404 NL80211_FLAG_NEED_RTNL,
9405 },
9406 {
9407 .cmd = NL80211_CMD_SET_WOWLAN,
9408 .doit = nl80211_set_wowlan,
9409 .policy = nl80211_policy,
9410 .flags = GENL_ADMIN_PERM,
9411 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9412 NL80211_FLAG_NEED_RTNL,
9413 },
dfb89c56 9414#endif
e5497d76
JB		 9415 {
9416 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9417 .doit = nl80211_set_rekey_data,
9418 .policy = nl80211_policy,
9419 .flags = GENL_ADMIN_PERM,
9420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9421 NL80211_FLAG_NEED_RTNL,
9422 },
109086ce
AN		 9423 {
9424 .cmd = NL80211_CMD_TDLS_MGMT,
9425 .doit = nl80211_tdls_mgmt,
9426 .policy = nl80211_policy,
9427 .flags = GENL_ADMIN_PERM,
9428 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9429 NL80211_FLAG_NEED_RTNL,
9430 },
9431 {
9432 .cmd = NL80211_CMD_TDLS_OPER,
9433 .doit = nl80211_tdls_oper,
9434 .policy = nl80211_policy,
9435 .flags = GENL_ADMIN_PERM,
9436 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9437 NL80211_FLAG_NEED_RTNL,
9438 },
28946da7
JB		 9439 {
9440 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9441 .doit = nl80211_register_unexpected_frame,
9442 .policy = nl80211_policy,
9443 .flags = GENL_ADMIN_PERM,
9444 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9445 NL80211_FLAG_NEED_RTNL,
9446 },
7f6cf311
JB		 9447 {
9448 .cmd = NL80211_CMD_PROBE_CLIENT,
9449 .doit = nl80211_probe_client,
9450 .policy = nl80211_policy,
9451 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9452 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 9453 NL80211_FLAG_NEED_RTNL,
9454 },
5e760230
JB		 9455 {
9456 .cmd = NL80211_CMD_REGISTER_BEACONS,
9457 .doit = nl80211_register_beacons,
9458 .policy = nl80211_policy,
9459 .flags = GENL_ADMIN_PERM,
9460 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9461 NL80211_FLAG_NEED_RTNL,
9462 },
1d9d9213
SW		 9463 {
9464 .cmd = NL80211_CMD_SET_NOACK_MAP,
9465 .doit = nl80211_set_noack_map,
9466 .policy = nl80211_policy,
9467 .flags = GENL_ADMIN_PERM,
9468 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9469 NL80211_FLAG_NEED_RTNL,
9470 },
98104fde
JB		 9471 {
9472 .cmd = NL80211_CMD_START_P2P_DEVICE,
9473 .doit = nl80211_start_p2p_device,
9474 .policy = nl80211_policy,
9475 .flags = GENL_ADMIN_PERM,
9476 .internal_flags = NL80211_FLAG_NEED_WDEV |
9477 NL80211_FLAG_NEED_RTNL,
9478 },
9479 {
9480 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9481 .doit = nl80211_stop_p2p_device,
9482 .policy = nl80211_policy,
9483 .flags = GENL_ADMIN_PERM,
9484 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9485 NL80211_FLAG_NEED_RTNL,
9486 },
f4e583c8
AQ		 9487 {
9488 .cmd = NL80211_CMD_SET_MCAST_RATE,
9489 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 9490 .policy = nl80211_policy,
9491 .flags = GENL_ADMIN_PERM,
9492 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9493 NL80211_FLAG_NEED_RTNL,
9494 },
9495 {
9496 .cmd = NL80211_CMD_SET_MAC_ACL,
9497 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 9498 .policy = nl80211_policy,
9499 .flags = GENL_ADMIN_PERM,
9500 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9501 NL80211_FLAG_NEED_RTNL,
9502 },
04f39047
SW		 9503 {
9504 .cmd = NL80211_CMD_RADAR_DETECT,
9505 .doit = nl80211_start_radar_detection,
9506 .policy = nl80211_policy,
9507 .flags = GENL_ADMIN_PERM,
9508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9509 NL80211_FLAG_NEED_RTNL,
9510 },
3713b4e3
JB		 9511 {
9512 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9513 .doit = nl80211_get_protocol_features,
9514 .policy = nl80211_policy,
9515 },
355199e0
JM		 9516 {
9517 .cmd = NL80211_CMD_UPDATE_FT_IES,
9518 .doit = nl80211_update_ft_ies,
9519 .policy = nl80211_policy,
9520 .flags = GENL_ADMIN_PERM,
9521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9522 NL80211_FLAG_NEED_RTNL,
9523 },
5de17984
AS		 9524 {
9525 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9526 .doit = nl80211_crit_protocol_start,
9527 .policy = nl80211_policy,
9528 .flags = GENL_ADMIN_PERM,
9529 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9530 NL80211_FLAG_NEED_RTNL,
9531 },
9532 {
9533 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9534 .doit = nl80211_crit_protocol_stop,
9535 .policy = nl80211_policy,
9536 .flags = GENL_ADMIN_PERM,
9537 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9538 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 9539 },
9540 {
9541 .cmd = NL80211_CMD_GET_COALESCE,
9542 .doit = nl80211_get_coalesce,
9543 .policy = nl80211_policy,
9544 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9545 NL80211_FLAG_NEED_RTNL,
9546 },
9547 {
9548 .cmd = NL80211_CMD_SET_COALESCE,
9549 .doit = nl80211_set_coalesce,
9550 .policy = nl80211_policy,
9551 .flags = GENL_ADMIN_PERM,
9552 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9553 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 9554 },
9555 {
9556 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9557 .doit = nl80211_channel_switch,
9558 .policy = nl80211_policy,
9559 .flags = GENL_ADMIN_PERM,
9560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9561 NL80211_FLAG_NEED_RTNL,
9562 },
55682965 9563};
9588bbd5 9564
6039f6d2
JM		 9565static struct genl_multicast_group nl80211_mlme_mcgrp = {
9566 .name = "mlme",
9567};
55682965
JB		 9568
9569/* multicast groups */
9570static struct genl_multicast_group nl80211_config_mcgrp = {
9571 .name = "config",
9572};
2a519311
JB		 9573static struct genl_multicast_group nl80211_scan_mcgrp = {
9574 .name = "scan",
9575};
73d54c9e
LR		 9576static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9577 .name = "regulatory",
9578};
55682965
JB		 9579
9580/* notification functions */
9581
9582void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9583{
9584 struct sk_buff *msg;
86e8cf98 9585 struct nl80211_dump_wiphy_state state = {};
55682965 9586
fd2120ca 9587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 9588 if (!msg)
9589 return;
9590
86e8cf98 9591 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 9592 nlmsg_free(msg);
9593 return;
9594 }
9595
463d0183
JB		 9596 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9597 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 9598}
9599
362a415d
JB		 9600static int nl80211_add_scan_req(struct sk_buff *msg,
9601 struct cfg80211_registered_device *rdev)
9602{
9603 struct cfg80211_scan_request *req = rdev->scan_req;
9604 struct nlattr *nest;
9605 int i;
9606
9607 if (WARN_ON(!req))
9608 return 0;
9609
9610 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9611 if (!nest)
9612 goto nla_put_failure;
9360ffd1
DM		 9613 for (i = 0; i < req->n_ssids; i++) {
9614 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9615 goto nla_put_failure;
9616 }
362a415d
JB		 9617 nla_nest_end(msg, nest);
9618
9619 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9620 if (!nest)
9621 goto nla_put_failure;
9360ffd1
DM		 9622 for (i = 0; i < req->n_channels; i++) {
9623 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9624 goto nla_put_failure;
9625 }
362a415d
JB		 9626 nla_nest_end(msg, nest);
9627
9360ffd1
DM		 9628 if (req->ie &&
9629 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9630 goto nla_put_failure;
362a415d 9631
ed473771
SL		 9632 if (req->flags)
9633 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9634
362a415d
JB		 9635 return 0;
9636 nla_put_failure:
9637 return -ENOBUFS;
9638}
9639
a538e2d5
JB		 9640static int nl80211_send_scan_msg(struct sk_buff *msg,
9641 struct cfg80211_registered_device *rdev,
fd014284 9642 struct wireless_dev *wdev,
15e47304 9643 u32 portid, u32 seq, int flags,
a538e2d5 9644 u32 cmd)
2a519311
JB		 9645{
9646 void *hdr;
9647
15e47304 9648 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 9649 if (!hdr)
9650 return -1;
9651
9360ffd1 9652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 9653 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9654 wdev->netdev->ifindex)) ||
9655 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 9656 goto nla_put_failure;
2a519311 9657
362a415d
JB		 9658 /* ignore errors and send incomplete event anyway */
9659 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 9660
9661 return genlmsg_end(msg, hdr);
9662
9663 nla_put_failure:
9664 genlmsg_cancel(msg, hdr);
9665 return -EMSGSIZE;
9666}
9667
807f8a8c
LC		 9668static int
9669nl80211_send_sched_scan_msg(struct sk_buff *msg,
9670 struct cfg80211_registered_device *rdev,
9671 struct net_device *netdev,
15e47304 9672 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 9673{
9674 void *hdr;
9675
15e47304 9676 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 9677 if (!hdr)
9678 return -1;
9679
9360ffd1
DM		 9680 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9681 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9682 goto nla_put_failure;
807f8a8c
LC		 9683
9684 return genlmsg_end(msg, hdr);
9685
9686 nla_put_failure:
9687 genlmsg_cancel(msg, hdr);
9688 return -EMSGSIZE;
9689}
9690
a538e2d5 9691void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 9692 struct wireless_dev *wdev)
a538e2d5
JB		 9693{
9694 struct sk_buff *msg;
9695
58050fce 9696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 9697 if (!msg)
9698 return;
9699
fd014284 9700 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 9701 NL80211_CMD_TRIGGER_SCAN) < 0) {
9702 nlmsg_free(msg);
9703 return;
9704 }
9705
463d0183
JB		 9706 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9707 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 9708}
9709
2a519311 9710void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 9711 struct wireless_dev *wdev)
2a519311
JB		 9712{
9713 struct sk_buff *msg;
9714
fd2120ca 9715 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9716 if (!msg)
9717 return;
9718
fd014284 9719 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9720 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 9721 nlmsg_free(msg);
9722 return;
9723 }
9724
463d0183
JB		 9725 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9726 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9727}
9728
9729void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 9730 struct wireless_dev *wdev)
2a519311
JB		 9731{
9732 struct sk_buff *msg;
9733
fd2120ca 9734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 9735 if (!msg)
9736 return;
9737
fd014284 9738 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 9739 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 9740 nlmsg_free(msg);
9741 return;
9742 }
9743
463d0183
JB		 9744 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9745 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 9746}
9747
807f8a8c
LC		 9748void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9749 struct net_device *netdev)
9750{
9751 struct sk_buff *msg;
9752
9753 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9754 if (!msg)
9755 return;
9756
9757 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9758 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9759 nlmsg_free(msg);
9760 return;
9761 }
9762
9763 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9764 nl80211_scan_mcgrp.id, GFP_KERNEL);
9765}
9766
9767void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9768 struct net_device *netdev, u32 cmd)
9769{
9770 struct sk_buff *msg;
9771
58050fce 9772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 9773 if (!msg)
9774 return;
9775
9776 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9777 nlmsg_free(msg);
9778 return;
9779 }
9780
9781 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9782 nl80211_scan_mcgrp.id, GFP_KERNEL);
9783}
9784
73d54c9e
LR		 9785/*
9786 * This can happen on global regulatory changes or device specific settings
9787 * based on custom world regulatory domains.
9788 */
9789void nl80211_send_reg_change_event(struct regulatory_request *request)
9790{
9791 struct sk_buff *msg;
9792 void *hdr;
9793
fd2120ca 9794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 9795 if (!msg)
9796 return;
9797
9798 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9799 if (!hdr) {
9800 nlmsg_free(msg);
9801 return;
9802 }
9803
9804 /* Userspace can always count this one always being set */
9360ffd1
DM		 9805 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9806 goto nla_put_failure;
9807
9808 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9809 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9810 NL80211_REGDOM_TYPE_WORLD))
9811 goto nla_put_failure;
9812 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9813 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9814 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9815 goto nla_put_failure;
9816 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9817 request->intersect) {
9818 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9819 NL80211_REGDOM_TYPE_INTERSECTION))
9820 goto nla_put_failure;
9821 } else {
9822 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9823 NL80211_REGDOM_TYPE_COUNTRY) ||
9824 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9825 request->alpha2))
9826 goto nla_put_failure;
9827 }
9828
f4173766 9829 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 9830 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9831 goto nla_put_failure;
73d54c9e 9832
3b7b72ee 9833 genlmsg_end(msg, hdr);
73d54c9e 9834
bc43b28c 9835 rcu_read_lock();
463d0183 9836 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 9837 GFP_ATOMIC);
9838 rcu_read_unlock();
73d54c9e
LR		 9839
9840 return;
9841
9842nla_put_failure:
9843 genlmsg_cancel(msg, hdr);
9844 nlmsg_free(msg);
9845}
9846
6039f6d2
JM		 9847static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9848 struct net_device *netdev,
9849 const u8 *buf, size_t len,
e6d6e342 9850 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 9851{
9852 struct sk_buff *msg;
9853 void *hdr;
9854
e6d6e342 9855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 9856 if (!msg)
9857 return;
9858
9859 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9860 if (!hdr) {
9861 nlmsg_free(msg);
9862 return;
9863 }
9864
9360ffd1
DM		 9865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9867 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9868 goto nla_put_failure;
6039f6d2 9869
3b7b72ee 9870 genlmsg_end(msg, hdr);
6039f6d2 9871
463d0183
JB		 9872 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9873 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 9874 return;
9875
9876 nla_put_failure:
9877 genlmsg_cancel(msg, hdr);
9878 nlmsg_free(msg);
9879}
9880
9881void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9882 struct net_device *netdev, const u8 *buf,
9883 size_t len, gfp_t gfp)
6039f6d2
JM		 9884{
9885 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9886 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 9887}
9888
9889void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9890 struct net_device *netdev, const u8 *buf,
e6d6e342 9891 size_t len, gfp_t gfp)
6039f6d2 9892{
e6d6e342
JB		 9893 nl80211_send_mlme_event(rdev, netdev, buf, len,
9894 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 9895}
9896
53b46b84 9897void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9898 struct net_device *netdev, const u8 *buf,
9899 size_t len, gfp_t gfp)
6039f6d2
JM		 9900{
9901 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9902 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 9903}
9904
53b46b84
JM		 9905void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9906 struct net_device *netdev, const u8 *buf,
e6d6e342 9907 size_t len, gfp_t gfp)
6039f6d2
JM		 9908{
9909 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 9910 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 9911}
9912
6ff57cf8
JB		 9913void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9914 size_t len)
cf4e594e 9915{
947add36
JB		 9916 struct wireless_dev *wdev = dev->ieee80211_ptr;
9917 struct wiphy *wiphy = wdev->wiphy;
9918 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6ff57cf8
JB		 9919 const struct ieee80211_mgmt *mgmt = (void *)buf;
9920 u32 cmd;
947add36 9921
6ff57cf8
JB		 9922 if (WARN_ON(len < 2))
9923 return;
cf4e594e 9924
6ff57cf8
JB		 9925 if (ieee80211_is_deauth(mgmt->frame_control))
9926 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9927 else
9928 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 9929
6ff57cf8
JB		 9930 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9931 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
cf4e594e 9932}
6ff57cf8 9933EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 9934
1b06bb40
LR		 9935static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9936 struct net_device *netdev, int cmd,
e6d6e342 9937 const u8 *addr, gfp_t gfp)
1965c853
JM		 9938{
9939 struct sk_buff *msg;
9940 void *hdr;
9941
e6d6e342 9942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 9943 if (!msg)
9944 return;
9945
9946 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9947 if (!hdr) {
9948 nlmsg_free(msg);
9949 return;
9950 }
9951
9360ffd1
DM		 9952 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9953 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9954 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9955 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9956 goto nla_put_failure;
1965c853 9957
3b7b72ee 9958 genlmsg_end(msg, hdr);
1965c853 9959
463d0183
JB		 9960 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9961 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 9962 return;
9963
9964 nla_put_failure:
9965 genlmsg_cancel(msg, hdr);
9966 nlmsg_free(msg);
9967}
9968
9969void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9970 struct net_device *netdev, const u8 *addr,
9971 gfp_t gfp)
1965c853
JM		 9972{
9973 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 9974 addr, gfp);
1965c853
JM		 9975}
9976
9977void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 9978 struct net_device *netdev, const u8 *addr,
9979 gfp_t gfp)
1965c853 9980{
e6d6e342
JB		 9981 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9982 addr, gfp);
1965c853
JM		 9983}
9984
b23aa676
SO		 9985void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9986 struct net_device *netdev, const u8 *bssid,
9987 const u8 *req_ie, size_t req_ie_len,
9988 const u8 *resp_ie, size_t resp_ie_len,
9989 u16 status, gfp_t gfp)
9990{
9991 struct sk_buff *msg;
9992 void *hdr;
9993
58050fce 9994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 9995 if (!msg)
9996 return;
9997
9998 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9999 if (!hdr) {
10000 nlmsg_free(msg);
10001 return;
10002 }
10003
9360ffd1
DM		 10004 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10005 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10006 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10007 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10008 (req_ie &&
10009 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10010 (resp_ie &&
10011 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10012 goto nla_put_failure;
b23aa676 10013
3b7b72ee 10014 genlmsg_end(msg, hdr);
b23aa676 10015
463d0183
JB		 10016 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10017 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 10018 return;
10019
10020 nla_put_failure:
10021 genlmsg_cancel(msg, hdr);
10022 nlmsg_free(msg);
10023
10024}
10025
10026void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10027 struct net_device *netdev, const u8 *bssid,
10028 const u8 *req_ie, size_t req_ie_len,
10029 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10030{
10031 struct sk_buff *msg;
10032 void *hdr;
10033
58050fce 10034 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10035 if (!msg)
10036 return;
10037
10038 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10039 if (!hdr) {
10040 nlmsg_free(msg);
10041 return;
10042 }
10043
9360ffd1
DM		 10044 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10045 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10046 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10047 (req_ie &&
10048 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10049 (resp_ie &&
10050 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10051 goto nla_put_failure;
b23aa676 10052
3b7b72ee 10053 genlmsg_end(msg, hdr);
b23aa676 10054
463d0183
JB		 10055 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10056 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 10057 return;
10058
10059 nla_put_failure:
10060 genlmsg_cancel(msg, hdr);
10061 nlmsg_free(msg);
10062
10063}
10064
10065void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10066 struct net_device *netdev, u16 reason,
667503dd 10067 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10068{
10069 struct sk_buff *msg;
10070 void *hdr;
10071
58050fce 10072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10073 if (!msg)
10074 return;
10075
10076 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10077 if (!hdr) {
10078 nlmsg_free(msg);
10079 return;
10080 }
10081
9360ffd1
DM		 10082 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10083 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10084 (from_ap && reason &&
10085 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10086 (from_ap &&
10087 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10088 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10089 goto nla_put_failure;
b23aa676 10090
3b7b72ee 10091 genlmsg_end(msg, hdr);
b23aa676 10092
463d0183
JB		 10093 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10094 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 10095 return;
10096
10097 nla_put_failure:
10098 genlmsg_cancel(msg, hdr);
10099 nlmsg_free(msg);
10100
10101}
10102
04a773ad
JB		 10103void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10104 struct net_device *netdev, const u8 *bssid,
10105 gfp_t gfp)
10106{
10107 struct sk_buff *msg;
10108 void *hdr;
10109
fd2120ca 10110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10111 if (!msg)
10112 return;
10113
10114 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10115 if (!hdr) {
10116 nlmsg_free(msg);
10117 return;
10118 }
10119
9360ffd1
DM		 10120 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10121 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10122 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10123 goto nla_put_failure;
04a773ad 10124
3b7b72ee 10125 genlmsg_end(msg, hdr);
04a773ad 10126
463d0183
JB		 10127 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10128 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 10129 return;
10130
10131 nla_put_failure:
10132 genlmsg_cancel(msg, hdr);
10133 nlmsg_free(msg);
10134}
10135
947add36
JB		 10136void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10137 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10138{
947add36
JB		 10139 struct wireless_dev *wdev = dev->ieee80211_ptr;
10140 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
c93b5e71
JC		 10141 struct sk_buff *msg;
10142 void *hdr;
10143
947add36
JB		 10144 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10145 return;
10146
10147 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10148
c93b5e71
JC		 10149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10150 if (!msg)
10151 return;
10152
10153 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10154 if (!hdr) {
10155 nlmsg_free(msg);
10156 return;
10157 }
10158
9360ffd1 10159 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10160 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10161 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10162 (ie_len && ie &&
10163 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10164 goto nla_put_failure;
c93b5e71 10165
3b7b72ee 10166 genlmsg_end(msg, hdr);
c93b5e71
JC		 10167
10168 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10169 nl80211_mlme_mcgrp.id, gfp);
10170 return;
10171
10172 nla_put_failure:
10173 genlmsg_cancel(msg, hdr);
10174 nlmsg_free(msg);
10175}
947add36 10176EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10177
a3b8b056
JM		 10178void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10179 struct net_device *netdev, const u8 *addr,
10180 enum nl80211_key_type key_type, int key_id,
e6d6e342 10181 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 10182{
10183 struct sk_buff *msg;
10184 void *hdr;
10185
e6d6e342 10186 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 10187 if (!msg)
10188 return;
10189
10190 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10191 if (!hdr) {
10192 nlmsg_free(msg);
10193 return;
10194 }
10195
9360ffd1
DM		 10196 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10197 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10198 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10199 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10200 (key_id != -1 &&
10201 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10202 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10203 goto nla_put_failure;
a3b8b056 10204
3b7b72ee 10205 genlmsg_end(msg, hdr);
a3b8b056 10206
463d0183
JB		 10207 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10208 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 10209 return;
10210
10211 nla_put_failure:
10212 genlmsg_cancel(msg, hdr);
10213 nlmsg_free(msg);
10214}
10215
6bad8766
LR		 10216void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10217 struct ieee80211_channel *channel_before,
10218 struct ieee80211_channel *channel_after)
10219{
10220 struct sk_buff *msg;
10221 void *hdr;
10222 struct nlattr *nl_freq;
10223
fd2120ca 10224 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 10225 if (!msg)
10226 return;
10227
10228 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10229 if (!hdr) {
10230 nlmsg_free(msg);
10231 return;
10232 }
10233
10234 /*
10235 * Since we are applying the beacon hint to a wiphy we know its
10236 * wiphy_idx is valid
10237 */
9360ffd1
DM		 10238 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10239 goto nla_put_failure;
6bad8766
LR		 10240
10241 /* Before */
10242 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10243 if (!nl_freq)
10244 goto nla_put_failure;
cdc89b97 10245 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 10246 goto nla_put_failure;
10247 nla_nest_end(msg, nl_freq);
10248
10249 /* After */
10250 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10251 if (!nl_freq)
10252 goto nla_put_failure;
cdc89b97 10253 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 10254 goto nla_put_failure;
10255 nla_nest_end(msg, nl_freq);
10256
3b7b72ee 10257 genlmsg_end(msg, hdr);
6bad8766 10258
463d0183
JB		 10259 rcu_read_lock();
10260 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
10261 GFP_ATOMIC);
10262 rcu_read_unlock();
6bad8766
LR		 10263
10264 return;
10265
10266nla_put_failure:
10267 genlmsg_cancel(msg, hdr);
10268 nlmsg_free(msg);
10269}
10270
9588bbd5
JM		 10271static void nl80211_send_remain_on_chan_event(
10272 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 10273 struct wireless_dev *wdev, u64 cookie,
9588bbd5 10274 struct ieee80211_channel *chan,
9588bbd5
JM		 10275 unsigned int duration, gfp_t gfp)
10276{
10277 struct sk_buff *msg;
10278 void *hdr;
10279
10280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10281 if (!msg)
10282 return;
10283
10284 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10285 if (!hdr) {
10286 nlmsg_free(msg);
10287 return;
10288 }
10289
9360ffd1 10290 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10291 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10292 wdev->netdev->ifindex)) ||
00f53350 10293 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 10294 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 10295 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10296 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 10297 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10298 goto nla_put_failure;
9588bbd5 10299
9360ffd1
DM		 10300 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10301 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10302 goto nla_put_failure;
9588bbd5 10303
3b7b72ee 10304 genlmsg_end(msg, hdr);
9588bbd5
JM		 10305
10306 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10307 nl80211_mlme_mcgrp.id, gfp);
10308 return;
10309
10310 nla_put_failure:
10311 genlmsg_cancel(msg, hdr);
10312 nlmsg_free(msg);
10313}
10314
947add36
JB		 10315void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10316 struct ieee80211_channel *chan,
10317 unsigned int duration, gfp_t gfp)
9588bbd5 10318{
947add36
JB		 10319 struct wiphy *wiphy = wdev->wiphy;
10320 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10321
10322 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 10323 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 10324 rdev, wdev, cookie, chan,
42d97a59 10325 duration, gfp);
9588bbd5 10326}
947add36 10327EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 10328
947add36
JB		 10329void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10330 struct ieee80211_channel *chan,
10331 gfp_t gfp)
9588bbd5 10332{
947add36
JB		 10333 struct wiphy *wiphy = wdev->wiphy;
10334 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10335
10336 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 10337 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 10338 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 10339}
947add36 10340EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 10341
947add36
JB		 10342void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10343 struct station_info *sinfo, gfp_t gfp)
98b62183 10344{
947add36
JB		 10345 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10346 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
98b62183
JB		 10347 struct sk_buff *msg;
10348
947add36
JB		 10349 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10350
58050fce 10351 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 10352 if (!msg)
10353 return;
10354
66266b3a
JL		 10355 if (nl80211_send_station(msg, 0, 0, 0,
10356 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 10357 nlmsg_free(msg);
10358 return;
10359 }
10360
10361 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10362 nl80211_mlme_mcgrp.id, gfp);
10363}
947add36 10364EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 10365
947add36 10366void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 10367{
947add36
JB		 10368 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10369 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ec15e68b
JM		 10370 struct sk_buff *msg;
10371 void *hdr;
10372
947add36
JB		 10373 trace_cfg80211_del_sta(dev, mac_addr);
10374
58050fce 10375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 10376 if (!msg)
10377 return;
10378
10379 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10380 if (!hdr) {
10381 nlmsg_free(msg);
10382 return;
10383 }
10384
9360ffd1
DM		 10385 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10386 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10387 goto nla_put_failure;
ec15e68b 10388
3b7b72ee 10389 genlmsg_end(msg, hdr);
ec15e68b
JM		 10390
10391 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10392 nl80211_mlme_mcgrp.id, gfp);
10393 return;
10394
10395 nla_put_failure:
10396 genlmsg_cancel(msg, hdr);
10397 nlmsg_free(msg);
10398}
947add36 10399EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 10400
947add36
JB		 10401void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10402 enum nl80211_connect_failed_reason reason,
10403 gfp_t gfp)
ed44a951 10404{
947add36
JB		 10405 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10406 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
ed44a951
PP		 10407 struct sk_buff *msg;
10408 void *hdr;
10409
10410 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10411 if (!msg)
10412 return;
10413
10414 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10415 if (!hdr) {
10416 nlmsg_free(msg);
10417 return;
10418 }
10419
10420 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10421 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10422 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10423 goto nla_put_failure;
10424
10425 genlmsg_end(msg, hdr);
10426
10427 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10428 nl80211_mlme_mcgrp.id, gfp);
10429 return;
10430
10431 nla_put_failure:
10432 genlmsg_cancel(msg, hdr);
10433 nlmsg_free(msg);
10434}
947add36 10435EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 10436
b92ab5d8
JB		 10437static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10438 const u8 *addr, gfp_t gfp)
28946da7
JB		 10439{
10440 struct wireless_dev *wdev = dev->ieee80211_ptr;
10441 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10442 struct sk_buff *msg;
10443 void *hdr;
15e47304 10444 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 10445
15e47304 10446 if (!nlportid)
28946da7
JB		 10447 return false;
10448
10449 msg = nlmsg_new(100, gfp);
10450 if (!msg)
10451 return true;
10452
b92ab5d8 10453 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 10454 if (!hdr) {
10455 nlmsg_free(msg);
10456 return true;
10457 }
10458
9360ffd1
DM		 10459 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10460 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10461 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10462 goto nla_put_failure;
28946da7 10463
9c90a9f6 10464 genlmsg_end(msg, hdr);
15e47304 10465 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 10466 return true;
10467
10468 nla_put_failure:
10469 genlmsg_cancel(msg, hdr);
10470 nlmsg_free(msg);
10471 return true;
10472}
10473
947add36
JB		 10474bool cfg80211_rx_spurious_frame(struct net_device *dev,
10475 const u8 *addr, gfp_t gfp)
b92ab5d8 10476{
947add36
JB		 10477 struct wireless_dev *wdev = dev->ieee80211_ptr;
10478 bool ret;
10479
10480 trace_cfg80211_rx_spurious_frame(dev, addr);
10481
10482 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10483 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10484 trace_cfg80211_return_bool(false);
10485 return false;
10486 }
10487 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10488 addr, gfp);
10489 trace_cfg80211_return_bool(ret);
10490 return ret;
b92ab5d8 10491}
947add36 10492EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 10493
947add36
JB		 10494bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10495 const u8 *addr, gfp_t gfp)
b92ab5d8 10496{
947add36
JB		 10497 struct wireless_dev *wdev = dev->ieee80211_ptr;
10498 bool ret;
10499
10500 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10501
10502 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10503 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10504 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10505 trace_cfg80211_return_bool(false);
10506 return false;
10507 }
10508 ret = __nl80211_unexpected_frame(dev,
10509 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10510 addr, gfp);
10511 trace_cfg80211_return_bool(ret);
10512 return ret;
b92ab5d8 10513}
947add36 10514EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 10515
2e161f78 10516int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 10517 struct wireless_dev *wdev, u32 nlportid,
804483e9 10518 int freq, int sig_dbm,
19504cf5 10519 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 10520{
71bbc994 10521 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10522 struct sk_buff *msg;
10523 void *hdr;
026331c4
JM		 10524
10525 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10526 if (!msg)
10527 return -ENOMEM;
10528
2e161f78 10529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 10530 if (!hdr) {
10531 nlmsg_free(msg);
10532 return -ENOMEM;
10533 }
10534
9360ffd1 10535 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10536 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10537 netdev->ifindex)) ||
a838490b 10538 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10539 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10540 (sig_dbm &&
10541 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 10542 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10543 (flags &&
10544 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 10545 goto nla_put_failure;
026331c4 10546
3b7b72ee 10547 genlmsg_end(msg, hdr);
026331c4 10548
15e47304 10549 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 10550
10551 nla_put_failure:
10552 genlmsg_cancel(msg, hdr);
10553 nlmsg_free(msg);
10554 return -ENOBUFS;
10555}
10556
947add36
JB		 10557void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10558 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 10559{
947add36
JB		 10560 struct wiphy *wiphy = wdev->wiphy;
10561 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
71bbc994 10562 struct net_device *netdev = wdev->netdev;
026331c4
JM		 10563 struct sk_buff *msg;
10564 void *hdr;
10565
947add36
JB		 10566 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10567
026331c4
JM		 10568 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10569 if (!msg)
10570 return;
10571
2e161f78 10572 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 10573 if (!hdr) {
10574 nlmsg_free(msg);
10575 return;
10576 }
10577
9360ffd1 10578 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 10579 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10580 netdev->ifindex)) ||
a838490b 10581 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 10582 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10583 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10584 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10585 goto nla_put_failure;
026331c4 10586
3b7b72ee 10587 genlmsg_end(msg, hdr);
026331c4 10588
a0ec570f
MK		 10589 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10590 nl80211_mlme_mcgrp.id, gfp);
026331c4
JM		 10591 return;
10592
10593 nla_put_failure:
10594 genlmsg_cancel(msg, hdr);
10595 nlmsg_free(msg);
10596}
947add36 10597EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 10598
947add36
JB		 10599void cfg80211_cqm_rssi_notify(struct net_device *dev,
10600 enum nl80211_cqm_rssi_threshold_event rssi_event,
10601 gfp_t gfp)
d6dc1a38 10602{
947add36
JB		 10603 struct wireless_dev *wdev = dev->ieee80211_ptr;
10604 struct wiphy *wiphy = wdev->wiphy;
10605 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
d6dc1a38
JO		 10606 struct sk_buff *msg;
10607 struct nlattr *pinfoattr;
10608 void *hdr;
10609
947add36
JB		 10610 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10611
58050fce 10612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 10613 if (!msg)
10614 return;
10615
10616 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10617 if (!hdr) {
10618 nlmsg_free(msg);
10619 return;
10620 }
10621
9360ffd1 10622 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10623 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 10624 goto nla_put_failure;
d6dc1a38
JO		 10625
10626 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10627 if (!pinfoattr)
10628 goto nla_put_failure;
10629
9360ffd1
DM		 10630 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10631 rssi_event))
10632 goto nla_put_failure;
d6dc1a38
JO		 10633
10634 nla_nest_end(msg, pinfoattr);
10635
3b7b72ee 10636 genlmsg_end(msg, hdr);
d6dc1a38
JO		 10637
10638 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10639 nl80211_mlme_mcgrp.id, gfp);
10640 return;
10641
10642 nla_put_failure:
10643 genlmsg_cancel(msg, hdr);
10644 nlmsg_free(msg);
10645}
947add36 10646EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 10647
947add36
JB		 10648static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10649 struct net_device *netdev, const u8 *bssid,
10650 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 10651{
10652 struct sk_buff *msg;
10653 struct nlattr *rekey_attr;
10654 void *hdr;
10655
58050fce 10656 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 10657 if (!msg)
10658 return;
10659
10660 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10661 if (!hdr) {
10662 nlmsg_free(msg);
10663 return;
10664 }
10665
9360ffd1
DM		 10666 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10667 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10668 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10669 goto nla_put_failure;
e5497d76
JB		 10670
10671 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10672 if (!rekey_attr)
10673 goto nla_put_failure;
10674
9360ffd1
DM		 10675 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10676 NL80211_REPLAY_CTR_LEN, replay_ctr))
10677 goto nla_put_failure;
e5497d76
JB		 10678
10679 nla_nest_end(msg, rekey_attr);
10680
3b7b72ee 10681 genlmsg_end(msg, hdr);
e5497d76
JB		 10682
10683 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10684 nl80211_mlme_mcgrp.id, gfp);
10685 return;
10686
10687 nla_put_failure:
10688 genlmsg_cancel(msg, hdr);
10689 nlmsg_free(msg);
10690}
10691
947add36
JB		 10692void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10693 const u8 *replay_ctr, gfp_t gfp)
10694{
10695 struct wireless_dev *wdev = dev->ieee80211_ptr;
10696 struct wiphy *wiphy = wdev->wiphy;
10697 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10698
10699 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10700 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10701}
10702EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10703
10704static void
10705nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10706 struct net_device *netdev, int index,
10707 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 10708{
10709 struct sk_buff *msg;
10710 struct nlattr *attr;
10711 void *hdr;
10712
58050fce 10713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 10714 if (!msg)
10715 return;
10716
10717 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10718 if (!hdr) {
10719 nlmsg_free(msg);
10720 return;
10721 }
10722
9360ffd1
DM		 10723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10724 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10725 goto nla_put_failure;
c9df56b4
JM		 10726
10727 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10728 if (!attr)
10729 goto nla_put_failure;
10730
9360ffd1
DM		 10731 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10732 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10733 (preauth &&
10734 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10735 goto nla_put_failure;
c9df56b4
JM		 10736
10737 nla_nest_end(msg, attr);
10738
3b7b72ee 10739 genlmsg_end(msg, hdr);
c9df56b4
JM		 10740
10741 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10742 nl80211_mlme_mcgrp.id, gfp);
10743 return;
10744
10745 nla_put_failure:
10746 genlmsg_cancel(msg, hdr);
10747 nlmsg_free(msg);
10748}
10749
947add36
JB		 10750void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10751 const u8 *bssid, bool preauth, gfp_t gfp)
10752{
10753 struct wireless_dev *wdev = dev->ieee80211_ptr;
10754 struct wiphy *wiphy = wdev->wiphy;
10755 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10756
10757 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10758 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10759}
10760EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10761
10762static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10763 struct net_device *netdev,
10764 struct cfg80211_chan_def *chandef,
10765 gfp_t gfp)
5314526b
TP		 10766{
10767 struct sk_buff *msg;
10768 void *hdr;
10769
58050fce 10770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 10771 if (!msg)
10772 return;
10773
10774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10775 if (!hdr) {
10776 nlmsg_free(msg);
10777 return;
10778 }
10779
683b6d3b
JB		 10780 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10781 goto nla_put_failure;
10782
10783 if (nl80211_send_chandef(msg, chandef))
7eab0f64 10784 goto nla_put_failure;
5314526b
TP		 10785
10786 genlmsg_end(msg, hdr);
10787
10788 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10789 nl80211_mlme_mcgrp.id, gfp);
10790 return;
10791
10792 nla_put_failure:
10793 genlmsg_cancel(msg, hdr);
10794 nlmsg_free(msg);
10795}
10796
947add36
JB		 10797void cfg80211_ch_switch_notify(struct net_device *dev,
10798 struct cfg80211_chan_def *chandef)
84f10708 10799{
947add36
JB		 10800 struct wireless_dev *wdev = dev->ieee80211_ptr;
10801 struct wiphy *wiphy = wdev->wiphy;
10802 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10803
10804 trace_cfg80211_ch_switch_notify(dev, chandef);
10805
10806 wdev_lock(wdev);
10807
10808 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 10809 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 10810 wdev->iftype != NL80211_IFTYPE_ADHOC &&
10811 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
947add36
JB		 10812 goto out;
10813
10814 wdev->channel = chandef->chan;
10815 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10816out:
10817 wdev_unlock(wdev);
10818 return;
10819}
10820EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10821
10822void cfg80211_cqm_txe_notify(struct net_device *dev,
10823 const u8 *peer, u32 num_packets,
10824 u32 rate, u32 intvl, gfp_t gfp)
10825{
10826 struct wireless_dev *wdev = dev->ieee80211_ptr;
10827 struct wiphy *wiphy = wdev->wiphy;
10828 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
84f10708
TP		 10829 struct sk_buff *msg;
10830 struct nlattr *pinfoattr;
10831 void *hdr;
10832
10833 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10834 if (!msg)
10835 return;
10836
10837 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10838 if (!hdr) {
10839 nlmsg_free(msg);
10840 return;
10841 }
10842
10843 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10844 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 10845 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10846 goto nla_put_failure;
10847
10848 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10849 if (!pinfoattr)
10850 goto nla_put_failure;
10851
10852 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10853 goto nla_put_failure;
10854
10855 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10856 goto nla_put_failure;
10857
10858 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10859 goto nla_put_failure;
10860
10861 nla_nest_end(msg, pinfoattr);
10862
10863 genlmsg_end(msg, hdr);
10864
10865 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10866 nl80211_mlme_mcgrp.id, gfp);
10867 return;
10868
10869 nla_put_failure:
10870 genlmsg_cancel(msg, hdr);
10871 nlmsg_free(msg);
10872}
947add36 10873EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 10874
04f39047
SW		 10875void
10876nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 10877 const struct cfg80211_chan_def *chandef,
04f39047
SW		 10878 enum nl80211_radar_event event,
10879 struct net_device *netdev, gfp_t gfp)
10880{
10881 struct sk_buff *msg;
10882 void *hdr;
10883
10884 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10885 if (!msg)
10886 return;
10887
10888 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10889 if (!hdr) {
10890 nlmsg_free(msg);
10891 return;
10892 }
10893
10894 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10895 goto nla_put_failure;
10896
10897 /* NOP and radar events don't need a netdev parameter */
10898 if (netdev) {
10899 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10900
10901 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10902 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10903 goto nla_put_failure;
10904 }
10905
10906 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10907 goto nla_put_failure;
10908
10909 if (nl80211_send_chandef(msg, chandef))
10910 goto nla_put_failure;
10911
9c90a9f6 10912 genlmsg_end(msg, hdr);
04f39047
SW		 10913
10914 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10915 nl80211_mlme_mcgrp.id, gfp);
10916 return;
10917
10918 nla_put_failure:
10919 genlmsg_cancel(msg, hdr);
10920 nlmsg_free(msg);
10921}
10922
947add36
JB		 10923void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10924 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 10925{
947add36
JB		 10926 struct wireless_dev *wdev = dev->ieee80211_ptr;
10927 struct wiphy *wiphy = wdev->wiphy;
10928 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
c063dbf5
JB		 10929 struct sk_buff *msg;
10930 struct nlattr *pinfoattr;
10931 void *hdr;
10932
947add36
JB		 10933 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10934
58050fce 10935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 10936 if (!msg)
10937 return;
10938
10939 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10940 if (!hdr) {
10941 nlmsg_free(msg);
10942 return;
10943 }
10944
9360ffd1 10945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 10946 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 10947 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10948 goto nla_put_failure;
c063dbf5
JB		 10949
10950 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10951 if (!pinfoattr)
10952 goto nla_put_failure;
10953
9360ffd1
DM		 10954 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10955 goto nla_put_failure;
c063dbf5
JB		 10956
10957 nla_nest_end(msg, pinfoattr);
10958
3b7b72ee 10959 genlmsg_end(msg, hdr);
c063dbf5
JB		 10960
10961 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10962 nl80211_mlme_mcgrp.id, gfp);
10963 return;
10964
10965 nla_put_failure:
10966 genlmsg_cancel(msg, hdr);
10967 nlmsg_free(msg);
10968}
947add36 10969EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 10970
7f6cf311
JB		 10971void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10972 u64 cookie, bool acked, gfp_t gfp)
10973{
10974 struct wireless_dev *wdev = dev->ieee80211_ptr;
10975 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10976 struct sk_buff *msg;
10977 void *hdr;
7f6cf311 10978
4ee3e063
BL		 10979 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10980
58050fce 10981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 10982
7f6cf311
JB		 10983 if (!msg)
10984 return;
10985
10986 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10987 if (!hdr) {
10988 nlmsg_free(msg);
10989 return;
10990 }
10991
9360ffd1
DM		 10992 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10994 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10995 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10996 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10997 goto nla_put_failure;
7f6cf311 10998
9c90a9f6 10999 genlmsg_end(msg, hdr);
7f6cf311
JB		 11000
11001 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11002 nl80211_mlme_mcgrp.id, gfp);
11003 return;
11004
11005 nla_put_failure:
11006 genlmsg_cancel(msg, hdr);
11007 nlmsg_free(msg);
11008}
11009EXPORT_SYMBOL(cfg80211_probe_status);
11010
5e760230
JB		 11011void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11012 const u8 *frame, size_t len,
37c73b5f 11013 int freq, int sig_dbm)
5e760230
JB		 11014{
11015 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11016 struct sk_buff *msg;
11017 void *hdr;
37c73b5f 11018 struct cfg80211_beacon_registration *reg;
5e760230 11019
4ee3e063
BL		 11020 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11021
37c73b5f
BG		 11022 spin_lock_bh(&rdev->beacon_registrations_lock);
11023 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11024 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11025 if (!msg) {
11026 spin_unlock_bh(&rdev->beacon_registrations_lock);
11027 return;
11028 }
5e760230 11029
37c73b5f
BG		 11030 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11031 if (!hdr)
11032 goto nla_put_failure;
5e760230 11033
37c73b5f
BG		 11034 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11035 (freq &&
11036 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11037 (sig_dbm &&
11038 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11039 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11040 goto nla_put_failure;
5e760230 11041
37c73b5f 11042 genlmsg_end(msg, hdr);
5e760230 11043
37c73b5f
BG		 11044 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11045 }
11046 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11047 return;
11048
11049 nla_put_failure:
37c73b5f
BG		 11050 spin_unlock_bh(&rdev->beacon_registrations_lock);
11051 if (hdr)
11052 genlmsg_cancel(msg, hdr);
5e760230
JB		 11053 nlmsg_free(msg);
11054}
11055EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11056
cd8f7cb4
JB		 11057#ifdef CONFIG_PM
11058void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11059 struct cfg80211_wowlan_wakeup *wakeup,
11060 gfp_t gfp)
11061{
11062 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11063 struct sk_buff *msg;
11064 void *hdr;
9c90a9f6 11065 int size = 200;
cd8f7cb4
JB		 11066
11067 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11068
11069 if (wakeup)
11070 size += wakeup->packet_present_len;
11071
11072 msg = nlmsg_new(size, gfp);
11073 if (!msg)
11074 return;
11075
11076 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11077 if (!hdr)
11078 goto free_msg;
11079
11080 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11081 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11082 goto free_msg;
11083
11084 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11085 wdev->netdev->ifindex))
11086 goto free_msg;
11087
11088 if (wakeup) {
11089 struct nlattr *reasons;
11090
11091 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11092
11093 if (wakeup->disconnect &&
11094 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11095 goto free_msg;
11096 if (wakeup->magic_pkt &&
11097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11098 goto free_msg;
11099 if (wakeup->gtk_rekey_failure &&
11100 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11101 goto free_msg;
11102 if (wakeup->eap_identity_req &&
11103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11104 goto free_msg;
11105 if (wakeup->four_way_handshake &&
11106 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11107 goto free_msg;
11108 if (wakeup->rfkill_release &&
11109 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11110 goto free_msg;
11111
11112 if (wakeup->pattern_idx >= 0 &&
11113 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11114 wakeup->pattern_idx))
11115 goto free_msg;
11116
2a0e047e
JB		 11117 if (wakeup->tcp_match)
11118 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
11119
11120 if (wakeup->tcp_connlost)
11121 nla_put_flag(msg,
11122 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
11123
11124 if (wakeup->tcp_nomoretokens)
11125 nla_put_flag(msg,
11126 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
11127
cd8f7cb4
JB		 11128 if (wakeup->packet) {
11129 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11130 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11131
11132 if (!wakeup->packet_80211) {
11133 pkt_attr =
11134 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11135 len_attr =
11136 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11137 }
11138
11139 if (wakeup->packet_len &&
11140 nla_put_u32(msg, len_attr, wakeup->packet_len))
11141 goto free_msg;
11142
11143 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11144 wakeup->packet))
11145 goto free_msg;
11146 }
11147
11148 nla_nest_end(msg, reasons);
11149 }
11150
9c90a9f6 11151 genlmsg_end(msg, hdr);
cd8f7cb4
JB		 11152
11153 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11154 nl80211_mlme_mcgrp.id, gfp);
11155 return;
11156
11157 free_msg:
11158 nlmsg_free(msg);
11159}
11160EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11161#endif
11162
3475b094
JM		 11163void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11164 enum nl80211_tdls_operation oper,
11165 u16 reason_code, gfp_t gfp)
11166{
11167 struct wireless_dev *wdev = dev->ieee80211_ptr;
11168 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11169 struct sk_buff *msg;
11170 void *hdr;
3475b094
JM		 11171
11172 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11173 reason_code);
11174
11175 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11176 if (!msg)
11177 return;
11178
11179 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11180 if (!hdr) {
11181 nlmsg_free(msg);
11182 return;
11183 }
11184
11185 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11186 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11187 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11188 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11189 (reason_code > 0 &&
11190 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11191 goto nla_put_failure;
11192
9c90a9f6 11193 genlmsg_end(msg, hdr);
3475b094
JM		 11194
11195 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11196 nl80211_mlme_mcgrp.id, gfp);
11197 return;
11198
11199 nla_put_failure:
11200 genlmsg_cancel(msg, hdr);
11201 nlmsg_free(msg);
11202}
11203EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11204
026331c4
JM		 11205static int nl80211_netlink_notify(struct notifier_block * nb,
11206 unsigned long state,
11207 void *_notify)
11208{
11209 struct netlink_notify *notify = _notify;
11210 struct cfg80211_registered_device *rdev;
11211 struct wireless_dev *wdev;
37c73b5f 11212 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 11213
11214 if (state != NETLINK_URELEASE)
11215 return NOTIFY_DONE;
11216
11217 rcu_read_lock();
11218
5e760230 11219 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 11220 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 11221 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 11222
11223 spin_lock_bh(&rdev->beacon_registrations_lock);
11224 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11225 list) {
11226 if (reg->nlportid == notify->portid) {
11227 list_del(&reg->list);
11228 kfree(reg);
11229 break;
11230 }
11231 }
11232 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 11233 }
026331c4
JM		 11234
11235 rcu_read_unlock();
11236
11237 return NOTIFY_DONE;
11238}
11239
11240static struct notifier_block nl80211_netlink_notifier = {
11241 .notifier_call = nl80211_netlink_notify,
11242};
11243
355199e0
JM		 11244void cfg80211_ft_event(struct net_device *netdev,
11245 struct cfg80211_ft_event_params *ft_event)
11246{
11247 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11248 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11249 struct sk_buff *msg;
11250 void *hdr;
355199e0
JM		 11251
11252 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11253
11254 if (!ft_event->target_ap)
11255 return;
11256
11257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11258 if (!msg)
11259 return;
11260
11261 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11262 if (!hdr) {
11263 nlmsg_free(msg);
11264 return;
11265 }
11266
11267 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
11268 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
11269 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
11270 if (ft_event->ies)
11271 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
11272 if (ft_event->ric_ies)
11273 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11274 ft_event->ric_ies);
11275
9c90a9f6 11276 genlmsg_end(msg, hdr);
355199e0
JM		 11277
11278 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11279 nl80211_mlme_mcgrp.id, GFP_KERNEL);
11280}
11281EXPORT_SYMBOL(cfg80211_ft_event);
11282
5de17984
AS		 11283void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11284{
11285 struct cfg80211_registered_device *rdev;
11286 struct sk_buff *msg;
11287 void *hdr;
11288 u32 nlportid;
11289
11290 rdev = wiphy_to_dev(wdev->wiphy);
11291 if (!rdev->crit_proto_nlportid)
11292 return;
11293
11294 nlportid = rdev->crit_proto_nlportid;
11295 rdev->crit_proto_nlportid = 0;
11296
11297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11298 if (!msg)
11299 return;
11300
11301 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11302 if (!hdr)
11303 goto nla_put_failure;
11304
11305 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11306 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11307 goto nla_put_failure;
11308
11309 genlmsg_end(msg, hdr);
11310
11311 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11312 return;
11313
11314 nla_put_failure:
11315 if (hdr)
11316 genlmsg_cancel(msg, hdr);
11317 nlmsg_free(msg);
11318
11319}
11320EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11321
55682965
JB		 11322/* initialisation/exit functions */
11323
11324int nl80211_init(void)
11325{
0d63cbb5 11326 int err;
55682965 11327
0d63cbb5
MM		 11328 err = genl_register_family_with_ops(&nl80211_fam,
11329 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 11330 if (err)
11331 return err;
11332
55682965
JB		 11333 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
11334 if (err)
11335 goto err_out;
11336
2a519311
JB		 11337 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
11338 if (err)
11339 goto err_out;
11340
73d54c9e
LR		 11341 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
11342 if (err)
11343 goto err_out;
11344
6039f6d2
JM		 11345 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
11346 if (err)
11347 goto err_out;
11348
aff89a9b
JB		 11349#ifdef CONFIG_NL80211_TESTMODE
11350 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
11351 if (err)
11352 goto err_out;
11353#endif
11354
026331c4
JM		 11355 err = netlink_register_notifier(&nl80211_netlink_notifier);
11356 if (err)
11357 goto err_out;
11358
55682965
JB		 11359 return 0;
11360 err_out:
11361 genl_unregister_family(&nl80211_fam);
11362 return err;
11363}
11364
11365void nl80211_exit(void)
11366{
026331c4 11367 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 11368 genl_unregister_family(&nl80211_fam);
11369}
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