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Commit | Line | Data |
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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> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
e35e4d28 | 25 | #include "rdev-ops.h" |
55682965 | 26 | |
5fb628e9 JM |
27 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
28 | struct genl_info *info, | |
29 | struct cfg80211_crypto_settings *settings, | |
30 | int cipher_limit); | |
31 | ||
4c476991 JB |
32 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, |
33 | struct genl_info *info); | |
34 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
35 | struct genl_info *info); | |
36 | ||
55682965 JB |
37 | /* the netlink family */ |
38 | static struct genl_family nl80211_fam = { | |
39 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
40 | .name = "nl80211", /* have users key off the name instead */ | |
41 | .hdrsize = 0, /* no private header */ | |
42 | .version = 1, /* no particular meaning now */ | |
43 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 44 | .netnsok = true, |
4c476991 JB |
45 | .pre_doit = nl80211_pre_doit, |
46 | .post_doit = nl80211_post_doit, | |
55682965 JB |
47 | }; |
48 | ||
89a54e48 JB |
49 | /* returns ERR_PTR values */ |
50 | static struct wireless_dev * | |
51 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
55682965 | 52 | { |
89a54e48 JB |
53 | struct cfg80211_registered_device *rdev; |
54 | struct wireless_dev *result = NULL; | |
55 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
56 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
57 | u64 wdev_id; | |
58 | int wiphy_idx = -1; | |
59 | int ifidx = -1; | |
55682965 | 60 | |
89a54e48 | 61 | assert_cfg80211_lock(); |
55682965 | 62 | |
89a54e48 JB |
63 | if (!have_ifidx && !have_wdev_id) |
64 | return ERR_PTR(-EINVAL); | |
55682965 | 65 | |
89a54e48 JB |
66 | if (have_ifidx) |
67 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
68 | if (have_wdev_id) { | |
69 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
70 | wiphy_idx = wdev_id >> 32; | |
55682965 JB |
71 | } |
72 | ||
89a54e48 JB |
73 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
74 | struct wireless_dev *wdev; | |
75 | ||
76 | if (wiphy_net(&rdev->wiphy) != netns) | |
77 | continue; | |
78 | ||
79 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
80 | continue; | |
81 | ||
82 | mutex_lock(&rdev->devlist_mtx); | |
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 | } | |
94 | mutex_unlock(&rdev->devlist_mtx); | |
95 | ||
96 | if (result) | |
97 | break; | |
98 | } | |
99 | ||
100 | if (result) | |
101 | return result; | |
102 | return ERR_PTR(-ENODEV); | |
55682965 JB |
103 | } |
104 | ||
a9455408 | 105 | static struct cfg80211_registered_device * |
878d9ec7 | 106 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
a9455408 | 107 | { |
7fee4778 JB |
108 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
109 | struct net_device *netdev; | |
a9455408 JB |
110 | |
111 | assert_cfg80211_lock(); | |
112 | ||
878d9ec7 | 113 | if (!attrs[NL80211_ATTR_WIPHY] && |
89a54e48 JB |
114 | !attrs[NL80211_ATTR_IFINDEX] && |
115 | !attrs[NL80211_ATTR_WDEV]) | |
7fee4778 JB |
116 | return ERR_PTR(-EINVAL); |
117 | ||
878d9ec7 | 118 | if (attrs[NL80211_ATTR_WIPHY]) |
7fee4778 | 119 | rdev = cfg80211_rdev_by_wiphy_idx( |
878d9ec7 | 120 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
a9455408 | 121 | |
89a54e48 JB |
122 | if (attrs[NL80211_ATTR_WDEV]) { |
123 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
124 | struct wireless_dev *wdev; | |
125 | bool found = false; | |
126 | ||
127 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
128 | if (tmp) { | |
129 | /* make sure wdev exists */ | |
130 | mutex_lock(&tmp->devlist_mtx); | |
131 | list_for_each_entry(wdev, &tmp->wdev_list, list) { | |
132 | if (wdev->identifier != (u32)wdev_id) | |
133 | continue; | |
134 | found = true; | |
135 | break; | |
136 | } | |
137 | mutex_unlock(&tmp->devlist_mtx); | |
138 | ||
139 | if (!found) | |
140 | tmp = NULL; | |
141 | ||
142 | if (rdev && tmp != rdev) | |
143 | return ERR_PTR(-EINVAL); | |
144 | rdev = tmp; | |
145 | } | |
146 | } | |
147 | ||
878d9ec7 JB |
148 | if (attrs[NL80211_ATTR_IFINDEX]) { |
149 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
4f7eff10 | 150 | netdev = dev_get_by_index(netns, ifindex); |
7fee4778 JB |
151 | if (netdev) { |
152 | if (netdev->ieee80211_ptr) | |
153 | tmp = wiphy_to_dev( | |
154 | netdev->ieee80211_ptr->wiphy); | |
155 | else | |
156 | tmp = NULL; | |
157 | ||
158 | dev_put(netdev); | |
159 | ||
160 | /* not wireless device -- return error */ | |
161 | if (!tmp) | |
162 | return ERR_PTR(-EINVAL); | |
163 | ||
164 | /* mismatch -- return error */ | |
165 | if (rdev && tmp != rdev) | |
166 | return ERR_PTR(-EINVAL); | |
167 | ||
168 | rdev = tmp; | |
a9455408 | 169 | } |
a9455408 | 170 | } |
a9455408 | 171 | |
4f7eff10 JB |
172 | if (!rdev) |
173 | return ERR_PTR(-ENODEV); | |
a9455408 | 174 | |
4f7eff10 JB |
175 | if (netns != wiphy_net(&rdev->wiphy)) |
176 | return ERR_PTR(-ENODEV); | |
177 | ||
178 | return rdev; | |
a9455408 JB |
179 | } |
180 | ||
181 | /* | |
182 | * This function returns a pointer to the driver | |
183 | * that the genl_info item that is passed refers to. | |
184 | * If successful, it returns non-NULL and also locks | |
185 | * the driver's mutex! | |
186 | * | |
187 | * This means that you need to call cfg80211_unlock_rdev() | |
188 | * before being allowed to acquire &cfg80211_mutex! | |
189 | * | |
190 | * This is necessary because we need to lock the global | |
191 | * mutex to get an item off the list safely, and then | |
192 | * we lock the rdev mutex so it doesn't go away under us. | |
193 | * | |
194 | * We don't want to keep cfg80211_mutex locked | |
195 | * for all the time in order to allow requests on | |
196 | * other interfaces to go through at the same time. | |
197 | * | |
198 | * The result of this can be a PTR_ERR and hence must | |
199 | * be checked with IS_ERR() for errors. | |
200 | */ | |
201 | static struct cfg80211_registered_device * | |
4f7eff10 | 202 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
a9455408 JB |
203 | { |
204 | struct cfg80211_registered_device *rdev; | |
205 | ||
206 | mutex_lock(&cfg80211_mutex); | |
878d9ec7 | 207 | rdev = __cfg80211_rdev_from_attrs(netns, info->attrs); |
a9455408 JB |
208 | |
209 | /* if it is not an error we grab the lock on | |
210 | * it to assure it won't be going away while | |
211 | * we operate on it */ | |
212 | if (!IS_ERR(rdev)) | |
213 | mutex_lock(&rdev->mtx); | |
214 | ||
215 | mutex_unlock(&cfg80211_mutex); | |
216 | ||
217 | return rdev; | |
218 | } | |
219 | ||
55682965 | 220 | /* policy for the attributes */ |
b54452b0 | 221 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
222 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
223 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 224 | .len = 20-1 }, |
31888487 | 225 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 226 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 227 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
228 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
229 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
230 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
231 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 232 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
233 | |
234 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
235 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
236 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 237 | |
e007b857 EP |
238 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
239 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 240 | |
b9454e83 | 241 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
242 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
243 | .len = WLAN_MAX_KEY_LEN }, | |
244 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
245 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
246 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 247 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 248 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
249 | |
250 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
251 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
252 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
253 | .len = IEEE80211_MAX_DATA_LEN }, | |
254 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
255 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
256 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
257 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
258 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
259 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
260 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 261 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 262 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 263 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 | 264 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
a4f606ea | 265 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
2ec600d6 | 266 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
9f1ba906 | 267 | |
b2e1b302 LR |
268 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
269 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
270 | ||
9f1ba906 JM |
271 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
272 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
273 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
274 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
275 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 276 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 277 | |
24bdd9f4 | 278 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 279 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 280 | |
6c739419 | 281 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
282 | |
283 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
284 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
285 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
286 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
287 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
288 | |
289 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
290 | .len = IEEE80211_MAX_SSID_LEN }, | |
291 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
292 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 293 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 294 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 295 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
296 | [NL80211_ATTR_STA_FLAGS2] = { |
297 | .len = sizeof(struct nl80211_sta_flag_update), | |
298 | }, | |
3f77316c | 299 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
300 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
301 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
302 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
303 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
304 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 305 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 306 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
307 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
308 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
309 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
310 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 311 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
312 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
313 | .len = IEEE80211_MAX_DATA_LEN }, | |
314 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 315 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 316 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 317 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 318 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
319 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
320 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 321 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
322 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
323 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 324 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 325 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 326 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 327 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 328 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 329 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 330 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 331 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 332 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
333 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
334 | .len = IEEE80211_MAX_DATA_LEN }, | |
335 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
336 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 337 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 338 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 339 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
340 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
341 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
342 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
343 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
344 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
e247bd90 | 345 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
346 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
347 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 348 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
349 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
350 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
351 | .len = NL80211_HT_CAPABILITY_LEN | |
352 | }, | |
1d9d9213 | 353 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 354 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 355 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
89a54e48 | 356 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
57b5ce07 | 357 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
e39e5b5e | 358 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
f461be3e | 359 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
ed473771 | 360 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
55682965 JB |
361 | }; |
362 | ||
e31b8213 | 363 | /* policy for the key attributes */ |
b54452b0 | 364 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 365 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
366 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
367 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 368 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
369 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
370 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 371 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
372 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
373 | }; | |
374 | ||
375 | /* policy for the key default flags */ | |
376 | static const struct nla_policy | |
377 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
378 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
379 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
380 | }; |
381 | ||
ff1b6e69 JB |
382 | /* policy for WoWLAN attributes */ |
383 | static const struct nla_policy | |
384 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
385 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
386 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
387 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
388 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
389 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
390 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
391 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
392 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
ff1b6e69 JB |
393 | }; |
394 | ||
e5497d76 JB |
395 | /* policy for GTK rekey offload attributes */ |
396 | static const struct nla_policy | |
397 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
398 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
399 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
400 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
401 | }; | |
402 | ||
a1f1c21c LC |
403 | static const struct nla_policy |
404 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
4a4ab0d7 | 405 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
a1f1c21c | 406 | .len = IEEE80211_MAX_SSID_LEN }, |
88e920b4 | 407 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
a1f1c21c LC |
408 | }; |
409 | ||
a043897a HS |
410 | /* ifidx get helper */ |
411 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
412 | { | |
413 | int res; | |
414 | ||
415 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
416 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
417 | nl80211_policy); | |
418 | if (res) | |
419 | return res; | |
420 | ||
421 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
422 | return -EINVAL; | |
423 | ||
424 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
425 | if (!res) | |
426 | return -EINVAL; | |
427 | return res; | |
428 | } | |
429 | ||
67748893 JB |
430 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
431 | struct netlink_callback *cb, | |
432 | struct cfg80211_registered_device **rdev, | |
433 | struct net_device **dev) | |
434 | { | |
435 | int ifidx = cb->args[0]; | |
436 | int err; | |
437 | ||
438 | if (!ifidx) | |
439 | ifidx = nl80211_get_ifidx(cb); | |
440 | if (ifidx < 0) | |
441 | return ifidx; | |
442 | ||
443 | cb->args[0] = ifidx; | |
444 | ||
445 | rtnl_lock(); | |
446 | ||
447 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
448 | if (!*dev) { | |
449 | err = -ENODEV; | |
450 | goto out_rtnl; | |
451 | } | |
452 | ||
453 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
454 | if (IS_ERR(*rdev)) { |
455 | err = PTR_ERR(*rdev); | |
67748893 JB |
456 | goto out_rtnl; |
457 | } | |
458 | ||
459 | return 0; | |
460 | out_rtnl: | |
461 | rtnl_unlock(); | |
462 | return err; | |
463 | } | |
464 | ||
465 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
466 | { | |
467 | cfg80211_unlock_rdev(rdev); | |
468 | rtnl_unlock(); | |
469 | } | |
470 | ||
f4a11bb0 JB |
471 | /* IE validation */ |
472 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
473 | { | |
474 | const u8 *pos; | |
475 | int len; | |
476 | ||
477 | if (!attr) | |
478 | return true; | |
479 | ||
480 | pos = nla_data(attr); | |
481 | len = nla_len(attr); | |
482 | ||
483 | while (len) { | |
484 | u8 elemlen; | |
485 | ||
486 | if (len < 2) | |
487 | return false; | |
488 | len -= 2; | |
489 | ||
490 | elemlen = pos[1]; | |
491 | if (elemlen > len) | |
492 | return false; | |
493 | ||
494 | len -= elemlen; | |
495 | pos += 2 + elemlen; | |
496 | } | |
497 | ||
498 | return true; | |
499 | } | |
500 | ||
55682965 | 501 | /* message building helper */ |
15e47304 | 502 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
55682965 JB |
503 | int flags, u8 cmd) |
504 | { | |
505 | /* since there is no private header just add the generic one */ | |
15e47304 | 506 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
55682965 JB |
507 | } |
508 | ||
5dab3b8a LR |
509 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
510 | struct ieee80211_channel *chan) | |
511 | { | |
9360ffd1 DM |
512 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
513 | chan->center_freq)) | |
514 | goto nla_put_failure; | |
5dab3b8a | 515 | |
9360ffd1 DM |
516 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
517 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
518 | goto nla_put_failure; | |
519 | if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) && | |
520 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN)) | |
521 | goto nla_put_failure; | |
522 | if ((chan->flags & IEEE80211_CHAN_NO_IBSS) && | |
523 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
524 | goto nla_put_failure; | |
525 | if ((chan->flags & IEEE80211_CHAN_RADAR) && | |
526 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
527 | goto nla_put_failure; | |
5dab3b8a | 528 | |
9360ffd1 DM |
529 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
530 | DBM_TO_MBM(chan->max_power))) | |
531 | goto nla_put_failure; | |
5dab3b8a LR |
532 | |
533 | return 0; | |
534 | ||
535 | nla_put_failure: | |
536 | return -ENOBUFS; | |
537 | } | |
538 | ||
55682965 JB |
539 | /* netlink command implementations */ |
540 | ||
b9454e83 JB |
541 | struct key_parse { |
542 | struct key_params p; | |
543 | int idx; | |
e31b8213 | 544 | int type; |
b9454e83 | 545 | bool def, defmgmt; |
dbd2fd65 | 546 | bool def_uni, def_multi; |
b9454e83 JB |
547 | }; |
548 | ||
549 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
550 | { | |
551 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
552 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
553 | nl80211_key_policy); | |
554 | if (err) | |
555 | return err; | |
556 | ||
557 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
558 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
559 | ||
dbd2fd65 JB |
560 | if (k->def) { |
561 | k->def_uni = true; | |
562 | k->def_multi = true; | |
563 | } | |
564 | if (k->defmgmt) | |
565 | k->def_multi = true; | |
566 | ||
b9454e83 JB |
567 | if (tb[NL80211_KEY_IDX]) |
568 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
569 | ||
570 | if (tb[NL80211_KEY_DATA]) { | |
571 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
572 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
573 | } | |
574 | ||
575 | if (tb[NL80211_KEY_SEQ]) { | |
576 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
577 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
578 | } | |
579 | ||
580 | if (tb[NL80211_KEY_CIPHER]) | |
581 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
582 | ||
e31b8213 JB |
583 | if (tb[NL80211_KEY_TYPE]) { |
584 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
585 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
586 | return -EINVAL; | |
587 | } | |
588 | ||
dbd2fd65 JB |
589 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
590 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
591 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
592 | tb[NL80211_KEY_DEFAULT_TYPES], | |
593 | nl80211_key_default_policy); | |
dbd2fd65 JB |
594 | if (err) |
595 | return err; | |
596 | ||
597 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
598 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
599 | } | |
600 | ||
b9454e83 JB |
601 | return 0; |
602 | } | |
603 | ||
604 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
605 | { | |
606 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
607 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
608 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
609 | } | |
610 | ||
611 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
612 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
613 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
614 | } | |
615 | ||
616 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
617 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
618 | ||
619 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
620 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
621 | ||
622 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
623 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
624 | ||
dbd2fd65 JB |
625 | if (k->def) { |
626 | k->def_uni = true; | |
627 | k->def_multi = true; | |
628 | } | |
629 | if (k->defmgmt) | |
630 | k->def_multi = true; | |
631 | ||
e31b8213 JB |
632 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
633 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
634 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
635 | return -EINVAL; | |
636 | } | |
637 | ||
dbd2fd65 JB |
638 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
639 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
640 | int err = nla_parse_nested( | |
641 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
642 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
643 | nl80211_key_default_policy); | |
644 | if (err) | |
645 | return err; | |
646 | ||
647 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
648 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
649 | } | |
650 | ||
b9454e83 JB |
651 | return 0; |
652 | } | |
653 | ||
654 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
655 | { | |
656 | int err; | |
657 | ||
658 | memset(k, 0, sizeof(*k)); | |
659 | k->idx = -1; | |
e31b8213 | 660 | k->type = -1; |
b9454e83 JB |
661 | |
662 | if (info->attrs[NL80211_ATTR_KEY]) | |
663 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
664 | else | |
665 | err = nl80211_parse_key_old(info, k); | |
666 | ||
667 | if (err) | |
668 | return err; | |
669 | ||
670 | if (k->def && k->defmgmt) | |
671 | return -EINVAL; | |
672 | ||
dbd2fd65 JB |
673 | if (k->defmgmt) { |
674 | if (k->def_uni || !k->def_multi) | |
675 | return -EINVAL; | |
676 | } | |
677 | ||
b9454e83 JB |
678 | if (k->idx != -1) { |
679 | if (k->defmgmt) { | |
680 | if (k->idx < 4 || k->idx > 5) | |
681 | return -EINVAL; | |
682 | } else if (k->def) { | |
683 | if (k->idx < 0 || k->idx > 3) | |
684 | return -EINVAL; | |
685 | } else { | |
686 | if (k->idx < 0 || k->idx > 5) | |
687 | return -EINVAL; | |
688 | } | |
689 | } | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
fffd0934 JB |
694 | static struct cfg80211_cached_keys * |
695 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
de7044ee | 696 | struct nlattr *keys, bool *no_ht) |
fffd0934 JB |
697 | { |
698 | struct key_parse parse; | |
699 | struct nlattr *key; | |
700 | struct cfg80211_cached_keys *result; | |
701 | int rem, err, def = 0; | |
702 | ||
703 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
704 | if (!result) | |
705 | return ERR_PTR(-ENOMEM); | |
706 | ||
707 | result->def = -1; | |
708 | result->defmgmt = -1; | |
709 | ||
710 | nla_for_each_nested(key, keys, rem) { | |
711 | memset(&parse, 0, sizeof(parse)); | |
712 | parse.idx = -1; | |
713 | ||
714 | err = nl80211_parse_key_new(key, &parse); | |
715 | if (err) | |
716 | goto error; | |
717 | err = -EINVAL; | |
718 | if (!parse.p.key) | |
719 | goto error; | |
720 | if (parse.idx < 0 || parse.idx > 4) | |
721 | goto error; | |
722 | if (parse.def) { | |
723 | if (def) | |
724 | goto error; | |
725 | def = 1; | |
726 | result->def = parse.idx; | |
dbd2fd65 JB |
727 | if (!parse.def_uni || !parse.def_multi) |
728 | goto error; | |
fffd0934 JB |
729 | } else if (parse.defmgmt) |
730 | goto error; | |
731 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 732 | parse.idx, false, NULL); |
fffd0934 JB |
733 | if (err) |
734 | goto error; | |
735 | result->params[parse.idx].cipher = parse.p.cipher; | |
736 | result->params[parse.idx].key_len = parse.p.key_len; | |
737 | result->params[parse.idx].key = result->data[parse.idx]; | |
738 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
de7044ee SM |
739 | |
740 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
741 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
742 | if (no_ht) | |
743 | *no_ht = true; | |
744 | } | |
fffd0934 JB |
745 | } |
746 | ||
747 | return result; | |
748 | error: | |
749 | kfree(result); | |
750 | return ERR_PTR(err); | |
751 | } | |
752 | ||
753 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
754 | { | |
755 | ASSERT_WDEV_LOCK(wdev); | |
756 | ||
fffd0934 JB |
757 | switch (wdev->iftype) { |
758 | case NL80211_IFTYPE_AP: | |
759 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 760 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 761 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
762 | break; |
763 | case NL80211_IFTYPE_ADHOC: | |
764 | if (!wdev->current_bss) | |
765 | return -ENOLINK; | |
766 | break; | |
767 | case NL80211_IFTYPE_STATION: | |
074ac8df | 768 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
769 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
770 | return -ENOLINK; | |
771 | break; | |
772 | default: | |
773 | return -EINVAL; | |
774 | } | |
775 | ||
776 | return 0; | |
777 | } | |
778 | ||
7527a782 JB |
779 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
780 | { | |
781 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
782 | int i; | |
783 | ||
784 | if (!nl_modes) | |
785 | goto nla_put_failure; | |
786 | ||
787 | i = 0; | |
788 | while (ifmodes) { | |
9360ffd1 DM |
789 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
790 | goto nla_put_failure; | |
7527a782 JB |
791 | ifmodes >>= 1; |
792 | i++; | |
793 | } | |
794 | ||
795 | nla_nest_end(msg, nl_modes); | |
796 | return 0; | |
797 | ||
798 | nla_put_failure: | |
799 | return -ENOBUFS; | |
800 | } | |
801 | ||
802 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
803 | struct sk_buff *msg) | |
804 | { | |
805 | struct nlattr *nl_combis; | |
806 | int i, j; | |
807 | ||
808 | nl_combis = nla_nest_start(msg, | |
809 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
810 | if (!nl_combis) | |
811 | goto nla_put_failure; | |
812 | ||
813 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
814 | const struct ieee80211_iface_combination *c; | |
815 | struct nlattr *nl_combi, *nl_limits; | |
816 | ||
817 | c = &wiphy->iface_combinations[i]; | |
818 | ||
819 | nl_combi = nla_nest_start(msg, i + 1); | |
820 | if (!nl_combi) | |
821 | goto nla_put_failure; | |
822 | ||
823 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
824 | if (!nl_limits) | |
825 | goto nla_put_failure; | |
826 | ||
827 | for (j = 0; j < c->n_limits; j++) { | |
828 | struct nlattr *nl_limit; | |
829 | ||
830 | nl_limit = nla_nest_start(msg, j + 1); | |
831 | if (!nl_limit) | |
832 | goto nla_put_failure; | |
9360ffd1 DM |
833 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
834 | c->limits[j].max)) | |
835 | goto nla_put_failure; | |
7527a782 JB |
836 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
837 | c->limits[j].types)) | |
838 | goto nla_put_failure; | |
839 | nla_nest_end(msg, nl_limit); | |
840 | } | |
841 | ||
842 | nla_nest_end(msg, nl_limits); | |
843 | ||
9360ffd1 DM |
844 | if (c->beacon_int_infra_match && |
845 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
846 | goto nla_put_failure; | |
847 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
848 | c->num_different_channels) || | |
849 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
850 | c->max_interfaces)) | |
851 | goto nla_put_failure; | |
7527a782 JB |
852 | |
853 | nla_nest_end(msg, nl_combi); | |
854 | } | |
855 | ||
856 | nla_nest_end(msg, nl_combis); | |
857 | ||
858 | return 0; | |
859 | nla_put_failure: | |
860 | return -ENOBUFS; | |
861 | } | |
862 | ||
15e47304 | 863 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
55682965 JB |
864 | struct cfg80211_registered_device *dev) |
865 | { | |
866 | void *hdr; | |
ee688b00 JB |
867 | struct nlattr *nl_bands, *nl_band; |
868 | struct nlattr *nl_freqs, *nl_freq; | |
869 | struct nlattr *nl_rates, *nl_rate; | |
8fdc621d | 870 | struct nlattr *nl_cmds; |
ee688b00 JB |
871 | enum ieee80211_band band; |
872 | struct ieee80211_channel *chan; | |
873 | struct ieee80211_rate *rate; | |
874 | int i; | |
2e161f78 JB |
875 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
876 | dev->wiphy.mgmt_stypes; | |
55682965 | 877 | |
15e47304 | 878 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); |
55682965 JB |
879 | if (!hdr) |
880 | return -1; | |
881 | ||
9360ffd1 DM |
882 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || |
883 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) || | |
884 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
885 | cfg80211_rdev_list_generation) || | |
886 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
887 | dev->wiphy.retry_short) || | |
888 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
889 | dev->wiphy.retry_long) || | |
890 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
891 | dev->wiphy.frag_threshold) || | |
892 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
893 | dev->wiphy.rts_threshold) || | |
894 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, | |
895 | dev->wiphy.coverage_class) || | |
896 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, | |
897 | dev->wiphy.max_scan_ssids) || | |
898 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, | |
899 | dev->wiphy.max_sched_scan_ssids) || | |
900 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, | |
901 | dev->wiphy.max_scan_ie_len) || | |
902 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, | |
903 | dev->wiphy.max_sched_scan_ie_len) || | |
904 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, | |
905 | dev->wiphy.max_match_sets)) | |
906 | goto nla_put_failure; | |
907 | ||
908 | if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && | |
909 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) | |
910 | goto nla_put_failure; | |
911 | if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && | |
912 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) | |
913 | goto nla_put_failure; | |
914 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
915 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) | |
916 | goto nla_put_failure; | |
917 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && | |
918 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) | |
919 | goto nla_put_failure; | |
920 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && | |
921 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) | |
922 | goto nla_put_failure; | |
923 | if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && | |
924 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) | |
925 | goto nla_put_failure; | |
926 | ||
927 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
928 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
929 | dev->wiphy.cipher_suites)) | |
930 | goto nla_put_failure; | |
931 | ||
932 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, | |
933 | dev->wiphy.max_num_pmkids)) | |
934 | goto nla_put_failure; | |
935 | ||
936 | if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
937 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) | |
938 | goto nla_put_failure; | |
939 | ||
940 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, | |
941 | dev->wiphy.available_antennas_tx) || | |
942 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
943 | dev->wiphy.available_antennas_rx)) | |
944 | goto nla_put_failure; | |
945 | ||
946 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && | |
947 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
948 | dev->wiphy.probe_resp_offload)) | |
949 | goto nla_put_failure; | |
87bbbe22 | 950 | |
7f531e03 BR |
951 | if ((dev->wiphy.available_antennas_tx || |
952 | dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { | |
afe0cbf8 BR |
953 | u32 tx_ant = 0, rx_ant = 0; |
954 | int res; | |
e35e4d28 | 955 | res = rdev_get_antenna(dev, &tx_ant, &rx_ant); |
afe0cbf8 | 956 | if (!res) { |
9360ffd1 DM |
957 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, |
958 | tx_ant) || | |
959 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, | |
960 | rx_ant)) | |
961 | goto nla_put_failure; | |
afe0cbf8 BR |
962 | } |
963 | } | |
964 | ||
7527a782 JB |
965 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
966 | dev->wiphy.interface_modes)) | |
f59ac048 LR |
967 | goto nla_put_failure; |
968 | ||
ee688b00 JB |
969 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
970 | if (!nl_bands) | |
971 | goto nla_put_failure; | |
972 | ||
973 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
974 | if (!dev->wiphy.bands[band]) | |
975 | continue; | |
976 | ||
977 | nl_band = nla_nest_start(msg, band); | |
978 | if (!nl_band) | |
979 | goto nla_put_failure; | |
980 | ||
d51626df | 981 | /* add HT info */ |
9360ffd1 DM |
982 | if (dev->wiphy.bands[band]->ht_cap.ht_supported && |
983 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
984 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
985 | &dev->wiphy.bands[band]->ht_cap.mcs) || | |
986 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
987 | dev->wiphy.bands[band]->ht_cap.cap) || | |
988 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
989 | dev->wiphy.bands[band]->ht_cap.ampdu_factor) || | |
990 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
991 | dev->wiphy.bands[band]->ht_cap.ampdu_density))) | |
992 | goto nla_put_failure; | |
d51626df | 993 | |
bf0c111e MP |
994 | /* add VHT info */ |
995 | if (dev->wiphy.bands[band]->vht_cap.vht_supported && | |
996 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
997 | sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs), | |
998 | &dev->wiphy.bands[band]->vht_cap.vht_mcs) || | |
999 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1000 | dev->wiphy.bands[band]->vht_cap.cap))) | |
1001 | goto nla_put_failure; | |
1002 | ||
ee688b00 JB |
1003 | /* add frequencies */ |
1004 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
1005 | if (!nl_freqs) | |
1006 | goto nla_put_failure; | |
1007 | ||
1008 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
1009 | nl_freq = nla_nest_start(msg, i); | |
1010 | if (!nl_freq) | |
1011 | goto nla_put_failure; | |
1012 | ||
1013 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
1014 | |
1015 | if (nl80211_msg_put_channel(msg, chan)) | |
1016 | goto nla_put_failure; | |
e2f367f2 | 1017 | |
ee688b00 JB |
1018 | nla_nest_end(msg, nl_freq); |
1019 | } | |
1020 | ||
1021 | nla_nest_end(msg, nl_freqs); | |
1022 | ||
1023 | /* add bitrates */ | |
1024 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1025 | if (!nl_rates) | |
1026 | goto nla_put_failure; | |
1027 | ||
1028 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
1029 | nl_rate = nla_nest_start(msg, i); | |
1030 | if (!nl_rate) | |
1031 | goto nla_put_failure; | |
1032 | ||
1033 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
9360ffd1 DM |
1034 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, |
1035 | rate->bitrate)) | |
1036 | goto nla_put_failure; | |
1037 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1038 | nla_put_flag(msg, | |
1039 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1040 | goto nla_put_failure; | |
ee688b00 JB |
1041 | |
1042 | nla_nest_end(msg, nl_rate); | |
1043 | } | |
1044 | ||
1045 | nla_nest_end(msg, nl_rates); | |
1046 | ||
1047 | nla_nest_end(msg, nl_band); | |
1048 | } | |
1049 | nla_nest_end(msg, nl_bands); | |
1050 | ||
8fdc621d JB |
1051 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
1052 | if (!nl_cmds) | |
1053 | goto nla_put_failure; | |
1054 | ||
1055 | i = 0; | |
1056 | #define CMD(op, n) \ | |
1057 | do { \ | |
1058 | if (dev->ops->op) { \ | |
1059 | i++; \ | |
9360ffd1 DM |
1060 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ |
1061 | goto nla_put_failure; \ | |
8fdc621d JB |
1062 | } \ |
1063 | } while (0) | |
1064 | ||
1065 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1066 | CMD(change_virtual_intf, SET_INTERFACE); | |
1067 | CMD(add_key, NEW_KEY); | |
8860020e | 1068 | CMD(start_ap, START_AP); |
8fdc621d JB |
1069 | CMD(add_station, NEW_STATION); |
1070 | CMD(add_mpath, NEW_MPATH); | |
24bdd9f4 | 1071 | CMD(update_mesh_config, SET_MESH_CONFIG); |
8fdc621d | 1072 | CMD(change_bss, SET_BSS); |
636a5d36 JM |
1073 | CMD(auth, AUTHENTICATE); |
1074 | CMD(assoc, ASSOCIATE); | |
1075 | CMD(deauth, DEAUTHENTICATE); | |
1076 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 1077 | CMD(join_ibss, JOIN_IBSS); |
29cbe68c | 1078 | CMD(join_mesh, JOIN_MESH); |
67fbb16b SO |
1079 | CMD(set_pmksa, SET_PMKSA); |
1080 | CMD(del_pmksa, DEL_PMKSA); | |
1081 | CMD(flush_pmksa, FLUSH_PMKSA); | |
7c4ef712 JB |
1082 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
1083 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
13ae75b1 | 1084 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 1085 | CMD(mgmt_tx, FRAME); |
f7ca38df | 1086 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
5be83de5 | 1087 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 | 1088 | i++; |
9360ffd1 DM |
1089 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) |
1090 | goto nla_put_failure; | |
463d0183 | 1091 | } |
e8c9bd5b | 1092 | if (dev->ops->set_monitor_channel || dev->ops->start_ap || |
cc1d2806 | 1093 | dev->ops->join_mesh) { |
aa430da4 JB |
1094 | i++; |
1095 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1096 | goto nla_put_failure; | |
1097 | } | |
e8347eba | 1098 | CMD(set_wds_peer, SET_WDS_PEER); |
109086ce AN |
1099 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
1100 | CMD(tdls_mgmt, TDLS_MGMT); | |
1101 | CMD(tdls_oper, TDLS_OPER); | |
1102 | } | |
807f8a8c LC |
1103 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
1104 | CMD(sched_scan_start, START_SCHED_SCAN); | |
7f6cf311 | 1105 | CMD(probe_client, PROBE_CLIENT); |
1d9d9213 | 1106 | CMD(set_noack_map, SET_NOACK_MAP); |
5e760230 JB |
1107 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
1108 | i++; | |
9360ffd1 DM |
1109 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) |
1110 | goto nla_put_failure; | |
5e760230 | 1111 | } |
98104fde | 1112 | CMD(start_p2p_device, START_P2P_DEVICE); |
8fdc621d | 1113 | |
4745fc09 KV |
1114 | #ifdef CONFIG_NL80211_TESTMODE |
1115 | CMD(testmode_cmd, TESTMODE); | |
1116 | #endif | |
1117 | ||
8fdc621d | 1118 | #undef CMD |
b23aa676 | 1119 | |
6829c878 | 1120 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 | 1121 | i++; |
9360ffd1 DM |
1122 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) |
1123 | goto nla_put_failure; | |
b23aa676 SO |
1124 | } |
1125 | ||
6829c878 | 1126 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 | 1127 | i++; |
9360ffd1 DM |
1128 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) |
1129 | goto nla_put_failure; | |
b23aa676 SO |
1130 | } |
1131 | ||
8fdc621d JB |
1132 | nla_nest_end(msg, nl_cmds); |
1133 | ||
7c4ef712 | 1134 | if (dev->ops->remain_on_channel && |
9360ffd1 DM |
1135 | (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && |
1136 | nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1137 | dev->wiphy.max_remain_on_channel_duration)) | |
1138 | goto nla_put_failure; | |
a293911d | 1139 | |
9360ffd1 DM |
1140 | if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
1141 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) | |
1142 | goto nla_put_failure; | |
f7ca38df | 1143 | |
2e161f78 JB |
1144 | if (mgmt_stypes) { |
1145 | u16 stypes; | |
1146 | struct nlattr *nl_ftypes, *nl_ifs; | |
1147 | enum nl80211_iftype ift; | |
1148 | ||
1149 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
1150 | if (!nl_ifs) | |
1151 | goto nla_put_failure; | |
1152 | ||
1153 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1154 | nl_ftypes = nla_nest_start(msg, ift); | |
1155 | if (!nl_ftypes) | |
1156 | goto nla_put_failure; | |
1157 | i = 0; | |
1158 | stypes = mgmt_stypes[ift].tx; | |
1159 | while (stypes) { | |
9360ffd1 DM |
1160 | if ((stypes & 1) && |
1161 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1162 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1163 | goto nla_put_failure; | |
2e161f78 JB |
1164 | stypes >>= 1; |
1165 | i++; | |
1166 | } | |
1167 | nla_nest_end(msg, nl_ftypes); | |
1168 | } | |
1169 | ||
74b70a4e JB |
1170 | nla_nest_end(msg, nl_ifs); |
1171 | ||
2e161f78 JB |
1172 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1173 | if (!nl_ifs) | |
1174 | goto nla_put_failure; | |
1175 | ||
1176 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1177 | nl_ftypes = nla_nest_start(msg, ift); | |
1178 | if (!nl_ftypes) | |
1179 | goto nla_put_failure; | |
1180 | i = 0; | |
1181 | stypes = mgmt_stypes[ift].rx; | |
1182 | while (stypes) { | |
9360ffd1 DM |
1183 | if ((stypes & 1) && |
1184 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1185 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1186 | goto nla_put_failure; | |
2e161f78 JB |
1187 | stypes >>= 1; |
1188 | i++; | |
1189 | } | |
1190 | nla_nest_end(msg, nl_ftypes); | |
1191 | } | |
1192 | nla_nest_end(msg, nl_ifs); | |
1193 | } | |
1194 | ||
dfb89c56 | 1195 | #ifdef CONFIG_PM |
ff1b6e69 JB |
1196 | if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { |
1197 | struct nlattr *nl_wowlan; | |
1198 | ||
1199 | nl_wowlan = nla_nest_start(msg, | |
1200 | NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
1201 | if (!nl_wowlan) | |
1202 | goto nla_put_failure; | |
1203 | ||
9360ffd1 DM |
1204 | if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) && |
1205 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
1206 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) && | |
1207 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
1208 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) && | |
1209 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
1210 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && | |
1211 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || | |
1212 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && | |
1213 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
1214 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && | |
1215 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
1216 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && | |
1217 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
1218 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) && | |
1219 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
1220 | goto nla_put_failure; | |
ff1b6e69 JB |
1221 | if (dev->wiphy.wowlan.n_patterns) { |
1222 | struct nl80211_wowlan_pattern_support pat = { | |
1223 | .max_patterns = dev->wiphy.wowlan.n_patterns, | |
1224 | .min_pattern_len = | |
1225 | dev->wiphy.wowlan.pattern_min_len, | |
1226 | .max_pattern_len = | |
1227 | dev->wiphy.wowlan.pattern_max_len, | |
1228 | }; | |
9360ffd1 DM |
1229 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1230 | sizeof(pat), &pat)) | |
1231 | goto nla_put_failure; | |
ff1b6e69 JB |
1232 | } |
1233 | ||
1234 | nla_nest_end(msg, nl_wowlan); | |
1235 | } | |
dfb89c56 | 1236 | #endif |
ff1b6e69 | 1237 | |
7527a782 JB |
1238 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
1239 | dev->wiphy.software_iftypes)) | |
1240 | goto nla_put_failure; | |
1241 | ||
1242 | if (nl80211_put_iface_combinations(&dev->wiphy, msg)) | |
1243 | goto nla_put_failure; | |
1244 | ||
9360ffd1 DM |
1245 | if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
1246 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1247 | dev->wiphy.ap_sme_capa)) | |
1248 | goto nla_put_failure; | |
562a7480 | 1249 | |
9360ffd1 DM |
1250 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, |
1251 | dev->wiphy.features)) | |
1252 | goto nla_put_failure; | |
1f074bd8 | 1253 | |
9360ffd1 DM |
1254 | if (dev->wiphy.ht_capa_mod_mask && |
1255 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1256 | sizeof(*dev->wiphy.ht_capa_mod_mask), | |
1257 | dev->wiphy.ht_capa_mod_mask)) | |
1258 | goto nla_put_failure; | |
7e7c8926 | 1259 | |
55682965 JB |
1260 | return genlmsg_end(msg, hdr); |
1261 | ||
1262 | nla_put_failure: | |
bc3ed28c TG |
1263 | genlmsg_cancel(msg, hdr); |
1264 | return -EMSGSIZE; | |
55682965 JB |
1265 | } |
1266 | ||
1267 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1268 | { | |
1269 | int idx = 0; | |
1270 | int start = cb->args[0]; | |
1271 | struct cfg80211_registered_device *dev; | |
1272 | ||
a1794390 | 1273 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 1274 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
1275 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
1276 | continue; | |
b4637271 | 1277 | if (++idx <= start) |
55682965 | 1278 | continue; |
15e47304 | 1279 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 1280 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
b4637271 JV |
1281 | dev) < 0) { |
1282 | idx--; | |
55682965 | 1283 | break; |
b4637271 | 1284 | } |
55682965 | 1285 | } |
a1794390 | 1286 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1287 | |
1288 | cb->args[0] = idx; | |
1289 | ||
1290 | return skb->len; | |
1291 | } | |
1292 | ||
1293 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1294 | { | |
1295 | struct sk_buff *msg; | |
4c476991 | 1296 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 1297 | |
fd2120ca | 1298 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1299 | if (!msg) |
4c476991 | 1300 | return -ENOMEM; |
55682965 | 1301 | |
15e47304 | 1302 | if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) { |
4c476991 JB |
1303 | nlmsg_free(msg); |
1304 | return -ENOBUFS; | |
1305 | } | |
55682965 | 1306 | |
134e6375 | 1307 | return genlmsg_reply(msg, info); |
55682965 JB |
1308 | } |
1309 | ||
31888487 JM |
1310 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1311 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1312 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1313 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1314 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1315 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1316 | }; | |
1317 | ||
1318 | static int parse_txq_params(struct nlattr *tb[], | |
1319 | struct ieee80211_txq_params *txq_params) | |
1320 | { | |
a3304b0a | 1321 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1322 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1323 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1324 | return -EINVAL; | |
1325 | ||
a3304b0a | 1326 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1327 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1328 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1329 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1330 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1331 | ||
a3304b0a JB |
1332 | if (txq_params->ac >= NL80211_NUM_ACS) |
1333 | return -EINVAL; | |
1334 | ||
31888487 JM |
1335 | return 0; |
1336 | } | |
1337 | ||
f444de05 JB |
1338 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1339 | { | |
1340 | /* | |
cc1d2806 JB |
1341 | * You can only set the channel explicitly for WDS interfaces, |
1342 | * all others have their channel managed via their respective | |
1343 | * "establish a connection" command (connect, join, ...) | |
1344 | * | |
1345 | * For AP/GO and mesh mode, the channel can be set with the | |
1346 | * channel userspace API, but is only stored and passed to the | |
1347 | * low-level driver when the AP starts or the mesh is joined. | |
1348 | * This is for backward compatibility, userspace can also give | |
1349 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1350 | * |
1351 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1352 | * whatever else is going on, so they have their own special |
1353 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1354 | */ |
1355 | return !wdev || | |
1356 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1357 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1358 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1359 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1360 | } |
1361 | ||
cd6c6598 JB |
1362 | static bool nl80211_valid_channel_type(struct genl_info *info, |
1363 | enum nl80211_channel_type *channel_type) | |
1364 | { | |
1365 | enum nl80211_channel_type tmp; | |
1366 | ||
1367 | if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
1368 | return false; | |
1369 | ||
1370 | tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1371 | if (tmp != NL80211_CHAN_NO_HT && | |
1372 | tmp != NL80211_CHAN_HT20 && | |
1373 | tmp != NL80211_CHAN_HT40PLUS && | |
1374 | tmp != NL80211_CHAN_HT40MINUS) | |
1375 | return false; | |
1376 | ||
1377 | if (channel_type) | |
1378 | *channel_type = tmp; | |
1379 | ||
1380 | return true; | |
1381 | } | |
1382 | ||
f444de05 JB |
1383 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
1384 | struct wireless_dev *wdev, | |
1385 | struct genl_info *info) | |
1386 | { | |
aa430da4 | 1387 | struct ieee80211_channel *channel; |
f444de05 JB |
1388 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
1389 | u32 freq; | |
1390 | int result; | |
e8c9bd5b JB |
1391 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
1392 | ||
1393 | if (wdev) | |
1394 | iftype = wdev->iftype; | |
f444de05 JB |
1395 | |
1396 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1397 | return -EINVAL; | |
1398 | ||
1399 | if (!nl80211_can_set_dev_channel(wdev)) | |
1400 | return -EOPNOTSUPP; | |
1401 | ||
cd6c6598 JB |
1402 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && |
1403 | !nl80211_valid_channel_type(info, &channel_type)) | |
1404 | return -EINVAL; | |
f444de05 JB |
1405 | |
1406 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1407 | ||
1408 | mutex_lock(&rdev->devlist_mtx); | |
e8c9bd5b | 1409 | switch (iftype) { |
aa430da4 JB |
1410 | case NL80211_IFTYPE_AP: |
1411 | case NL80211_IFTYPE_P2P_GO: | |
1412 | if (wdev->beacon_interval) { | |
1413 | result = -EBUSY; | |
1414 | break; | |
1415 | } | |
1416 | channel = rdev_freq_to_chan(rdev, freq, channel_type); | |
1417 | if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy, | |
1418 | channel, | |
1419 | channel_type)) { | |
1420 | result = -EINVAL; | |
1421 | break; | |
1422 | } | |
1423 | wdev->preset_chan = channel; | |
1424 | wdev->preset_chantype = channel_type; | |
1425 | result = 0; | |
1426 | break; | |
cc1d2806 JB |
1427 | case NL80211_IFTYPE_MESH_POINT: |
1428 | result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type); | |
1429 | break; | |
e8c9bd5b JB |
1430 | case NL80211_IFTYPE_MONITOR: |
1431 | result = cfg80211_set_monitor_channel(rdev, freq, channel_type); | |
1432 | break; | |
aa430da4 | 1433 | default: |
e8c9bd5b | 1434 | result = -EINVAL; |
f444de05 JB |
1435 | } |
1436 | mutex_unlock(&rdev->devlist_mtx); | |
1437 | ||
1438 | return result; | |
1439 | } | |
1440 | ||
1441 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1442 | { | |
4c476991 JB |
1443 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1444 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 1445 | |
4c476991 | 1446 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
1447 | } |
1448 | ||
e8347eba BJ |
1449 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1450 | { | |
43b19952 JB |
1451 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1452 | struct net_device *dev = info->user_ptr[1]; | |
1453 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 1454 | const u8 *bssid; |
e8347eba BJ |
1455 | |
1456 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1457 | return -EINVAL; | |
1458 | ||
43b19952 JB |
1459 | if (netif_running(dev)) |
1460 | return -EBUSY; | |
e8347eba | 1461 | |
43b19952 JB |
1462 | if (!rdev->ops->set_wds_peer) |
1463 | return -EOPNOTSUPP; | |
e8347eba | 1464 | |
43b19952 JB |
1465 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1466 | return -EOPNOTSUPP; | |
e8347eba BJ |
1467 | |
1468 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
e35e4d28 | 1469 | return rdev_set_wds_peer(rdev, dev, bssid); |
e8347eba BJ |
1470 | } |
1471 | ||
1472 | ||
55682965 JB |
1473 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1474 | { | |
1475 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
1476 | struct net_device *netdev = NULL; |
1477 | struct wireless_dev *wdev; | |
a1e567c8 | 1478 | int result = 0, rem_txq_params = 0; |
31888487 | 1479 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
1480 | u32 changed; |
1481 | u8 retry_short = 0, retry_long = 0; | |
1482 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 1483 | u8 coverage_class = 0; |
55682965 | 1484 | |
f444de05 JB |
1485 | /* |
1486 | * Try to find the wiphy and netdev. Normally this | |
1487 | * function shouldn't need the netdev, but this is | |
1488 | * done for backward compatibility -- previously | |
1489 | * setting the channel was done per wiphy, but now | |
1490 | * it is per netdev. Previous userland like hostapd | |
1491 | * also passed a netdev to set_wiphy, so that it is | |
1492 | * possible to let that go to the right netdev! | |
1493 | */ | |
4bbf4d56 JB |
1494 | mutex_lock(&cfg80211_mutex); |
1495 | ||
f444de05 JB |
1496 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
1497 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
1498 | ||
1499 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
1500 | if (netdev && netdev->ieee80211_ptr) { | |
1501 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
1502 | mutex_lock(&rdev->mtx); | |
1503 | } else | |
1504 | netdev = NULL; | |
4bbf4d56 JB |
1505 | } |
1506 | ||
f444de05 | 1507 | if (!netdev) { |
878d9ec7 JB |
1508 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
1509 | info->attrs); | |
f444de05 JB |
1510 | if (IS_ERR(rdev)) { |
1511 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 1512 | return PTR_ERR(rdev); |
f444de05 JB |
1513 | } |
1514 | wdev = NULL; | |
1515 | netdev = NULL; | |
1516 | result = 0; | |
1517 | ||
1518 | mutex_lock(&rdev->mtx); | |
71fe96bf | 1519 | } else |
f444de05 | 1520 | wdev = netdev->ieee80211_ptr; |
f444de05 JB |
1521 | |
1522 | /* | |
1523 | * end workaround code, by now the rdev is available | |
1524 | * and locked, and wdev may or may not be NULL. | |
1525 | */ | |
4bbf4d56 JB |
1526 | |
1527 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
1528 | result = cfg80211_dev_rename( |
1529 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
1530 | |
1531 | mutex_unlock(&cfg80211_mutex); | |
1532 | ||
1533 | if (result) | |
1534 | goto bad_res; | |
31888487 JM |
1535 | |
1536 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
1537 | struct ieee80211_txq_params txq_params; | |
1538 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
1539 | ||
1540 | if (!rdev->ops->set_txq_params) { | |
1541 | result = -EOPNOTSUPP; | |
1542 | goto bad_res; | |
1543 | } | |
1544 | ||
f70f01c2 EP |
1545 | if (!netdev) { |
1546 | result = -EINVAL; | |
1547 | goto bad_res; | |
1548 | } | |
1549 | ||
133a3ff2 JB |
1550 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
1551 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
1552 | result = -EINVAL; | |
1553 | goto bad_res; | |
1554 | } | |
1555 | ||
2b5f8b0b JB |
1556 | if (!netif_running(netdev)) { |
1557 | result = -ENETDOWN; | |
1558 | goto bad_res; | |
1559 | } | |
1560 | ||
31888487 JM |
1561 | nla_for_each_nested(nl_txq_params, |
1562 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1563 | rem_txq_params) { | |
1564 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1565 | nla_data(nl_txq_params), | |
1566 | nla_len(nl_txq_params), | |
1567 | txq_params_policy); | |
1568 | result = parse_txq_params(tb, &txq_params); | |
1569 | if (result) | |
1570 | goto bad_res; | |
1571 | ||
e35e4d28 HG |
1572 | result = rdev_set_txq_params(rdev, netdev, |
1573 | &txq_params); | |
31888487 JM |
1574 | if (result) |
1575 | goto bad_res; | |
1576 | } | |
1577 | } | |
55682965 | 1578 | |
72bdcf34 | 1579 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
71fe96bf JB |
1580 | result = __nl80211_set_channel(rdev, |
1581 | nl80211_can_set_dev_channel(wdev) ? wdev : NULL, | |
1582 | info); | |
72bdcf34 JM |
1583 | if (result) |
1584 | goto bad_res; | |
1585 | } | |
1586 | ||
98d2ff8b | 1587 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
c8442118 | 1588 | struct wireless_dev *txp_wdev = wdev; |
98d2ff8b JO |
1589 | enum nl80211_tx_power_setting type; |
1590 | int idx, mbm = 0; | |
1591 | ||
c8442118 JB |
1592 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
1593 | txp_wdev = NULL; | |
1594 | ||
98d2ff8b | 1595 | if (!rdev->ops->set_tx_power) { |
60ea385f | 1596 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1597 | goto bad_res; |
1598 | } | |
1599 | ||
1600 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1601 | type = nla_get_u32(info->attrs[idx]); | |
1602 | ||
1603 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1604 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1605 | result = -EINVAL; | |
1606 | goto bad_res; | |
1607 | } | |
1608 | ||
1609 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1610 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1611 | mbm = nla_get_u32(info->attrs[idx]); | |
1612 | } | |
1613 | ||
c8442118 | 1614 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
98d2ff8b JO |
1615 | if (result) |
1616 | goto bad_res; | |
1617 | } | |
1618 | ||
afe0cbf8 BR |
1619 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1620 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1621 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
1622 | if ((!rdev->wiphy.available_antennas_tx && |
1623 | !rdev->wiphy.available_antennas_rx) || | |
1624 | !rdev->ops->set_antenna) { | |
afe0cbf8 BR |
1625 | result = -EOPNOTSUPP; |
1626 | goto bad_res; | |
1627 | } | |
1628 | ||
1629 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1630 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1631 | ||
a7ffac95 | 1632 | /* reject antenna configurations which don't match the |
7f531e03 BR |
1633 | * available antenna masks, except for the "all" mask */ |
1634 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
1635 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { | |
a7ffac95 BR |
1636 | result = -EINVAL; |
1637 | goto bad_res; | |
1638 | } | |
1639 | ||
7f531e03 BR |
1640 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
1641 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 1642 | |
e35e4d28 | 1643 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
afe0cbf8 BR |
1644 | if (result) |
1645 | goto bad_res; | |
1646 | } | |
1647 | ||
b9a5f8ca JM |
1648 | changed = 0; |
1649 | ||
1650 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1651 | retry_short = nla_get_u8( | |
1652 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1653 | if (retry_short == 0) { | |
1654 | result = -EINVAL; | |
1655 | goto bad_res; | |
1656 | } | |
1657 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1658 | } | |
1659 | ||
1660 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1661 | retry_long = nla_get_u8( | |
1662 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1663 | if (retry_long == 0) { | |
1664 | result = -EINVAL; | |
1665 | goto bad_res; | |
1666 | } | |
1667 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1668 | } | |
1669 | ||
1670 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1671 | frag_threshold = nla_get_u32( | |
1672 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1673 | if (frag_threshold < 256) { | |
1674 | result = -EINVAL; | |
1675 | goto bad_res; | |
1676 | } | |
1677 | if (frag_threshold != (u32) -1) { | |
1678 | /* | |
1679 | * Fragments (apart from the last one) are required to | |
1680 | * have even length. Make the fragmentation code | |
1681 | * simpler by stripping LSB should someone try to use | |
1682 | * odd threshold value. | |
1683 | */ | |
1684 | frag_threshold &= ~0x1; | |
1685 | } | |
1686 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1687 | } | |
1688 | ||
1689 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1690 | rts_threshold = nla_get_u32( | |
1691 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1692 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1693 | } | |
1694 | ||
81077e82 LT |
1695 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1696 | coverage_class = nla_get_u8( | |
1697 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1698 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1699 | } | |
1700 | ||
b9a5f8ca JM |
1701 | if (changed) { |
1702 | u8 old_retry_short, old_retry_long; | |
1703 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1704 | u8 old_coverage_class; |
b9a5f8ca JM |
1705 | |
1706 | if (!rdev->ops->set_wiphy_params) { | |
1707 | result = -EOPNOTSUPP; | |
1708 | goto bad_res; | |
1709 | } | |
1710 | ||
1711 | old_retry_short = rdev->wiphy.retry_short; | |
1712 | old_retry_long = rdev->wiphy.retry_long; | |
1713 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1714 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1715 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1716 | |
1717 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1718 | rdev->wiphy.retry_short = retry_short; | |
1719 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1720 | rdev->wiphy.retry_long = retry_long; | |
1721 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1722 | rdev->wiphy.frag_threshold = frag_threshold; | |
1723 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1724 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1725 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1726 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca | 1727 | |
e35e4d28 | 1728 | result = rdev_set_wiphy_params(rdev, changed); |
b9a5f8ca JM |
1729 | if (result) { |
1730 | rdev->wiphy.retry_short = old_retry_short; | |
1731 | rdev->wiphy.retry_long = old_retry_long; | |
1732 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1733 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1734 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1735 | } |
1736 | } | |
72bdcf34 | 1737 | |
306d6112 | 1738 | bad_res: |
4bbf4d56 | 1739 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1740 | if (netdev) |
1741 | dev_put(netdev); | |
55682965 JB |
1742 | return result; |
1743 | } | |
1744 | ||
71bbc994 JB |
1745 | static inline u64 wdev_id(struct wireless_dev *wdev) |
1746 | { | |
1747 | return (u64)wdev->identifier | | |
1748 | ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32); | |
1749 | } | |
55682965 | 1750 | |
15e47304 | 1751 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
d726405a | 1752 | struct cfg80211_registered_device *rdev, |
72fb2abc | 1753 | struct wireless_dev *wdev) |
55682965 | 1754 | { |
72fb2abc | 1755 | struct net_device *dev = wdev->netdev; |
55682965 JB |
1756 | void *hdr; |
1757 | ||
15e47304 | 1758 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); |
55682965 JB |
1759 | if (!hdr) |
1760 | return -1; | |
1761 | ||
72fb2abc JB |
1762 | if (dev && |
1763 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
98104fde | 1764 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
72fb2abc JB |
1765 | goto nla_put_failure; |
1766 | ||
1767 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
1768 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
71bbc994 | 1769 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
98104fde | 1770 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
9360ffd1 DM |
1771 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1772 | rdev->devlist_generation ^ | |
1773 | (cfg80211_rdev_list_generation << 2))) | |
1774 | goto nla_put_failure; | |
f5ea9120 | 1775 | |
5b7ccaf3 JB |
1776 | if (rdev->ops->get_channel) { |
1777 | struct ieee80211_channel *chan; | |
1778 | enum nl80211_channel_type channel_type; | |
1779 | ||
e35e4d28 | 1780 | chan = rdev_get_channel(rdev, wdev, &channel_type); |
5b7ccaf3 JB |
1781 | if (chan && |
1782 | (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, | |
1783 | chan->center_freq) || | |
1784 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
1785 | channel_type))) | |
59ef43e6 | 1786 | goto nla_put_failure; |
d91df0e3 PF |
1787 | } |
1788 | ||
55682965 JB |
1789 | return genlmsg_end(msg, hdr); |
1790 | ||
1791 | nla_put_failure: | |
bc3ed28c TG |
1792 | genlmsg_cancel(msg, hdr); |
1793 | return -EMSGSIZE; | |
55682965 JB |
1794 | } |
1795 | ||
1796 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1797 | { | |
1798 | int wp_idx = 0; | |
1799 | int if_idx = 0; | |
1800 | int wp_start = cb->args[0]; | |
1801 | int if_start = cb->args[1]; | |
f5ea9120 | 1802 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1803 | struct wireless_dev *wdev; |
1804 | ||
a1794390 | 1805 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1806 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1807 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1808 | continue; |
bba95fef JB |
1809 | if (wp_idx < wp_start) { |
1810 | wp_idx++; | |
55682965 | 1811 | continue; |
bba95fef | 1812 | } |
55682965 JB |
1813 | if_idx = 0; |
1814 | ||
f5ea9120 | 1815 | mutex_lock(&rdev->devlist_mtx); |
89a54e48 | 1816 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
bba95fef JB |
1817 | if (if_idx < if_start) { |
1818 | if_idx++; | |
55682965 | 1819 | continue; |
bba95fef | 1820 | } |
15e47304 | 1821 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 1822 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
72fb2abc | 1823 | rdev, wdev) < 0) { |
f5ea9120 | 1824 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1825 | goto out; |
1826 | } | |
1827 | if_idx++; | |
55682965 | 1828 | } |
f5ea9120 | 1829 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1830 | |
1831 | wp_idx++; | |
55682965 | 1832 | } |
bba95fef | 1833 | out: |
a1794390 | 1834 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1835 | |
1836 | cb->args[0] = wp_idx; | |
1837 | cb->args[1] = if_idx; | |
1838 | ||
1839 | return skb->len; | |
1840 | } | |
1841 | ||
1842 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1843 | { | |
1844 | struct sk_buff *msg; | |
4c476991 | 1845 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
72fb2abc | 1846 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 1847 | |
fd2120ca | 1848 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1849 | if (!msg) |
4c476991 | 1850 | return -ENOMEM; |
55682965 | 1851 | |
15e47304 | 1852 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
72fb2abc | 1853 | dev, wdev) < 0) { |
4c476991 JB |
1854 | nlmsg_free(msg); |
1855 | return -ENOBUFS; | |
1856 | } | |
55682965 | 1857 | |
134e6375 | 1858 | return genlmsg_reply(msg, info); |
55682965 JB |
1859 | } |
1860 | ||
66f7ac50 MW |
1861 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1862 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1863 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1864 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1865 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1866 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1867 | }; | |
1868 | ||
1869 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1870 | { | |
1871 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1872 | int flag; | |
1873 | ||
1874 | *mntrflags = 0; | |
1875 | ||
1876 | if (!nla) | |
1877 | return -EINVAL; | |
1878 | ||
1879 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1880 | nla, mntr_flags_policy)) | |
1881 | return -EINVAL; | |
1882 | ||
1883 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1884 | if (flags[flag]) | |
1885 | *mntrflags |= (1<<flag); | |
1886 | ||
1887 | return 0; | |
1888 | } | |
1889 | ||
9bc383de | 1890 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1891 | struct net_device *netdev, u8 use_4addr, |
1892 | enum nl80211_iftype iftype) | |
9bc383de | 1893 | { |
ad4bb6f8 | 1894 | if (!use_4addr) { |
f350a0a8 | 1895 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1896 | return -EBUSY; |
9bc383de | 1897 | return 0; |
ad4bb6f8 | 1898 | } |
9bc383de JB |
1899 | |
1900 | switch (iftype) { | |
1901 | case NL80211_IFTYPE_AP_VLAN: | |
1902 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1903 | return 0; | |
1904 | break; | |
1905 | case NL80211_IFTYPE_STATION: | |
1906 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1907 | return 0; | |
1908 | break; | |
1909 | default: | |
1910 | break; | |
1911 | } | |
1912 | ||
1913 | return -EOPNOTSUPP; | |
1914 | } | |
1915 | ||
55682965 JB |
1916 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1917 | { | |
4c476991 | 1918 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1919 | struct vif_params params; |
e36d56b6 | 1920 | int err; |
04a773ad | 1921 | enum nl80211_iftype otype, ntype; |
4c476991 | 1922 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1923 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1924 | bool change = false; |
55682965 | 1925 | |
2ec600d6 LCC |
1926 | memset(¶ms, 0, sizeof(params)); |
1927 | ||
04a773ad | 1928 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1929 | |
723b038d | 1930 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1931 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1932 | if (otype != ntype) |
ac7f9cfa | 1933 | change = true; |
4c476991 JB |
1934 | if (ntype > NL80211_IFTYPE_MAX) |
1935 | return -EINVAL; | |
723b038d JB |
1936 | } |
1937 | ||
92ffe055 | 1938 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
1939 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1940 | ||
4c476991 JB |
1941 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1942 | return -EINVAL; | |
29cbe68c JB |
1943 | if (netif_running(dev)) |
1944 | return -EBUSY; | |
1945 | ||
1946 | wdev_lock(wdev); | |
1947 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1948 | IEEE80211_MAX_MESH_ID_LEN); | |
1949 | wdev->mesh_id_up_len = | |
1950 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1951 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1952 | wdev->mesh_id_up_len); | |
1953 | wdev_unlock(wdev); | |
2ec600d6 LCC |
1954 | } |
1955 | ||
8b787643 FF |
1956 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1957 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1958 | change = true; | |
ad4bb6f8 | 1959 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1960 | if (err) |
4c476991 | 1961 | return err; |
8b787643 FF |
1962 | } else { |
1963 | params.use_4addr = -1; | |
1964 | } | |
1965 | ||
92ffe055 | 1966 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1967 | if (ntype != NL80211_IFTYPE_MONITOR) |
1968 | return -EINVAL; | |
92ffe055 JB |
1969 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1970 | &_flags); | |
ac7f9cfa | 1971 | if (err) |
4c476991 | 1972 | return err; |
ac7f9cfa JB |
1973 | |
1974 | flags = &_flags; | |
1975 | change = true; | |
92ffe055 | 1976 | } |
3b85875a | 1977 | |
ac7f9cfa | 1978 | if (change) |
3d54d255 | 1979 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1980 | else |
1981 | err = 0; | |
60719ffd | 1982 | |
9bc383de JB |
1983 | if (!err && params.use_4addr != -1) |
1984 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1985 | ||
55682965 JB |
1986 | return err; |
1987 | } | |
1988 | ||
1989 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1990 | { | |
4c476991 | 1991 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1992 | struct vif_params params; |
84efbb84 | 1993 | struct wireless_dev *wdev; |
1c90f9d4 | 1994 | struct sk_buff *msg; |
55682965 JB |
1995 | int err; |
1996 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1997 | u32 flags; |
55682965 | 1998 | |
2ec600d6 LCC |
1999 | memset(¶ms, 0, sizeof(params)); |
2000 | ||
55682965 JB |
2001 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
2002 | return -EINVAL; | |
2003 | ||
2004 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2005 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2006 | if (type > NL80211_IFTYPE_MAX) | |
2007 | return -EINVAL; | |
2008 | } | |
2009 | ||
79c97e97 | 2010 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
2011 | !(rdev->wiphy.interface_modes & (1 << type))) |
2012 | return -EOPNOTSUPP; | |
55682965 | 2013 | |
9bc383de | 2014 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 2015 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 2016 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 2017 | if (err) |
4c476991 | 2018 | return err; |
9bc383de | 2019 | } |
8b787643 | 2020 | |
1c90f9d4 JB |
2021 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2022 | if (!msg) | |
2023 | return -ENOMEM; | |
2024 | ||
66f7ac50 MW |
2025 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2026 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2027 | &flags); | |
e35e4d28 HG |
2028 | wdev = rdev_add_virtual_intf(rdev, |
2029 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
2030 | type, err ? NULL : &flags, ¶ms); | |
1c90f9d4 JB |
2031 | if (IS_ERR(wdev)) { |
2032 | nlmsg_free(msg); | |
84efbb84 | 2033 | return PTR_ERR(wdev); |
1c90f9d4 | 2034 | } |
2ec600d6 | 2035 | |
98104fde JB |
2036 | switch (type) { |
2037 | case NL80211_IFTYPE_MESH_POINT: | |
2038 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2039 | break; | |
29cbe68c JB |
2040 | wdev_lock(wdev); |
2041 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2042 | IEEE80211_MAX_MESH_ID_LEN); | |
2043 | wdev->mesh_id_up_len = | |
2044 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2045 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2046 | wdev->mesh_id_up_len); | |
2047 | wdev_unlock(wdev); | |
98104fde JB |
2048 | break; |
2049 | case NL80211_IFTYPE_P2P_DEVICE: | |
2050 | /* | |
2051 | * P2P Device doesn't have a netdev, so doesn't go | |
2052 | * through the netdev notifier and must be added here | |
2053 | */ | |
2054 | mutex_init(&wdev->mtx); | |
2055 | INIT_LIST_HEAD(&wdev->event_list); | |
2056 | spin_lock_init(&wdev->event_lock); | |
2057 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2058 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2059 | ||
2060 | mutex_lock(&rdev->devlist_mtx); | |
2061 | wdev->identifier = ++rdev->wdev_id; | |
2062 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2063 | rdev->devlist_generation++; | |
2064 | mutex_unlock(&rdev->devlist_mtx); | |
2065 | break; | |
2066 | default: | |
2067 | break; | |
29cbe68c JB |
2068 | } |
2069 | ||
15e47304 | 2070 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
1c90f9d4 JB |
2071 | rdev, wdev) < 0) { |
2072 | nlmsg_free(msg); | |
2073 | return -ENOBUFS; | |
2074 | } | |
2075 | ||
2076 | return genlmsg_reply(msg, info); | |
55682965 JB |
2077 | } |
2078 | ||
2079 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2080 | { | |
4c476991 | 2081 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
84efbb84 | 2082 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2083 | |
4c476991 JB |
2084 | if (!rdev->ops->del_virtual_intf) |
2085 | return -EOPNOTSUPP; | |
55682965 | 2086 | |
84efbb84 JB |
2087 | /* |
2088 | * If we remove a wireless device without a netdev then clear | |
2089 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2090 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2091 | * since the wdev has been freed, unlike with a netdev where | |
2092 | * we need the dev_put() for the netdev to really be freed. | |
2093 | */ | |
2094 | if (!wdev->netdev) | |
2095 | info->user_ptr[1] = NULL; | |
2096 | ||
e35e4d28 | 2097 | return rdev_del_virtual_intf(rdev, wdev); |
55682965 JB |
2098 | } |
2099 | ||
1d9d9213 SW |
2100 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2101 | { | |
2102 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2103 | struct net_device *dev = info->user_ptr[1]; | |
2104 | u16 noack_map; | |
2105 | ||
2106 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2107 | return -EINVAL; | |
2108 | ||
2109 | if (!rdev->ops->set_noack_map) | |
2110 | return -EOPNOTSUPP; | |
2111 | ||
2112 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2113 | ||
e35e4d28 | 2114 | return rdev_set_noack_map(rdev, dev, noack_map); |
1d9d9213 SW |
2115 | } |
2116 | ||
41ade00f JB |
2117 | struct get_key_cookie { |
2118 | struct sk_buff *msg; | |
2119 | int error; | |
b9454e83 | 2120 | int idx; |
41ade00f JB |
2121 | }; |
2122 | ||
2123 | static void get_key_callback(void *c, struct key_params *params) | |
2124 | { | |
b9454e83 | 2125 | struct nlattr *key; |
41ade00f JB |
2126 | struct get_key_cookie *cookie = c; |
2127 | ||
9360ffd1 DM |
2128 | if ((params->key && |
2129 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2130 | params->key_len, params->key)) || | |
2131 | (params->seq && | |
2132 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2133 | params->seq_len, params->seq)) || | |
2134 | (params->cipher && | |
2135 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2136 | params->cipher))) | |
2137 | goto nla_put_failure; | |
41ade00f | 2138 | |
b9454e83 JB |
2139 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2140 | if (!key) | |
2141 | goto nla_put_failure; | |
2142 | ||
9360ffd1 DM |
2143 | if ((params->key && |
2144 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2145 | params->key_len, params->key)) || | |
2146 | (params->seq && | |
2147 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2148 | params->seq_len, params->seq)) || | |
2149 | (params->cipher && | |
2150 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2151 | params->cipher))) | |
2152 | goto nla_put_failure; | |
b9454e83 | 2153 | |
9360ffd1 DM |
2154 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2155 | goto nla_put_failure; | |
b9454e83 JB |
2156 | |
2157 | nla_nest_end(cookie->msg, key); | |
2158 | ||
41ade00f JB |
2159 | return; |
2160 | nla_put_failure: | |
2161 | cookie->error = 1; | |
2162 | } | |
2163 | ||
2164 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2165 | { | |
4c476991 | 2166 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2167 | int err; |
4c476991 | 2168 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2169 | u8 key_idx = 0; |
e31b8213 JB |
2170 | const u8 *mac_addr = NULL; |
2171 | bool pairwise; | |
41ade00f JB |
2172 | struct get_key_cookie cookie = { |
2173 | .error = 0, | |
2174 | }; | |
2175 | void *hdr; | |
2176 | struct sk_buff *msg; | |
2177 | ||
2178 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2179 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2180 | ||
3cfcf6ac | 2181 | if (key_idx > 5) |
41ade00f JB |
2182 | return -EINVAL; |
2183 | ||
2184 | if (info->attrs[NL80211_ATTR_MAC]) | |
2185 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2186 | ||
e31b8213 JB |
2187 | pairwise = !!mac_addr; |
2188 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2189 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2190 | if (kt >= NUM_NL80211_KEYTYPES) | |
2191 | return -EINVAL; | |
2192 | if (kt != NL80211_KEYTYPE_GROUP && | |
2193 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2194 | return -EINVAL; | |
2195 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2196 | } | |
2197 | ||
4c476991 JB |
2198 | if (!rdev->ops->get_key) |
2199 | return -EOPNOTSUPP; | |
41ade00f | 2200 | |
fd2120ca | 2201 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2202 | if (!msg) |
2203 | return -ENOMEM; | |
41ade00f | 2204 | |
15e47304 | 2205 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
41ade00f | 2206 | NL80211_CMD_NEW_KEY); |
4c476991 JB |
2207 | if (IS_ERR(hdr)) |
2208 | return PTR_ERR(hdr); | |
41ade00f JB |
2209 | |
2210 | cookie.msg = msg; | |
b9454e83 | 2211 | cookie.idx = key_idx; |
41ade00f | 2212 | |
9360ffd1 DM |
2213 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2214 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2215 | goto nla_put_failure; | |
2216 | if (mac_addr && | |
2217 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2218 | goto nla_put_failure; | |
41ade00f | 2219 | |
e31b8213 JB |
2220 | if (pairwise && mac_addr && |
2221 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2222 | return -ENOENT; | |
2223 | ||
e35e4d28 HG |
2224 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, |
2225 | get_key_callback); | |
41ade00f JB |
2226 | |
2227 | if (err) | |
6c95e2a2 | 2228 | goto free_msg; |
41ade00f JB |
2229 | |
2230 | if (cookie.error) | |
2231 | goto nla_put_failure; | |
2232 | ||
2233 | genlmsg_end(msg, hdr); | |
4c476991 | 2234 | return genlmsg_reply(msg, info); |
41ade00f JB |
2235 | |
2236 | nla_put_failure: | |
2237 | err = -ENOBUFS; | |
6c95e2a2 | 2238 | free_msg: |
41ade00f | 2239 | nlmsg_free(msg); |
41ade00f JB |
2240 | return err; |
2241 | } | |
2242 | ||
2243 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2244 | { | |
4c476991 | 2245 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2246 | struct key_parse key; |
41ade00f | 2247 | int err; |
4c476991 | 2248 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2249 | |
b9454e83 JB |
2250 | err = nl80211_parse_key(info, &key); |
2251 | if (err) | |
2252 | return err; | |
41ade00f | 2253 | |
b9454e83 | 2254 | if (key.idx < 0) |
41ade00f JB |
2255 | return -EINVAL; |
2256 | ||
b9454e83 JB |
2257 | /* only support setting default key */ |
2258 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2259 | return -EINVAL; |
2260 | ||
dbd2fd65 | 2261 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2262 | |
dbd2fd65 JB |
2263 | if (key.def) { |
2264 | if (!rdev->ops->set_default_key) { | |
2265 | err = -EOPNOTSUPP; | |
2266 | goto out; | |
2267 | } | |
41ade00f | 2268 | |
dbd2fd65 JB |
2269 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2270 | if (err) | |
2271 | goto out; | |
2272 | ||
e35e4d28 | 2273 | err = rdev_set_default_key(rdev, dev, key.idx, |
dbd2fd65 JB |
2274 | key.def_uni, key.def_multi); |
2275 | ||
2276 | if (err) | |
2277 | goto out; | |
fffd0934 | 2278 | |
3d23e349 | 2279 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2280 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2281 | #endif | |
2282 | } else { | |
2283 | if (key.def_uni || !key.def_multi) { | |
2284 | err = -EINVAL; | |
2285 | goto out; | |
2286 | } | |
2287 | ||
2288 | if (!rdev->ops->set_default_mgmt_key) { | |
2289 | err = -EOPNOTSUPP; | |
2290 | goto out; | |
2291 | } | |
2292 | ||
2293 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2294 | if (err) | |
2295 | goto out; | |
2296 | ||
e35e4d28 | 2297 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); |
dbd2fd65 JB |
2298 | if (err) |
2299 | goto out; | |
2300 | ||
2301 | #ifdef CONFIG_CFG80211_WEXT | |
2302 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 2303 | #endif |
dbd2fd65 JB |
2304 | } |
2305 | ||
2306 | out: | |
fffd0934 | 2307 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2308 | |
41ade00f JB |
2309 | return err; |
2310 | } | |
2311 | ||
2312 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2313 | { | |
4c476991 | 2314 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 2315 | int err; |
4c476991 | 2316 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 2317 | struct key_parse key; |
e31b8213 | 2318 | const u8 *mac_addr = NULL; |
41ade00f | 2319 | |
b9454e83 JB |
2320 | err = nl80211_parse_key(info, &key); |
2321 | if (err) | |
2322 | return err; | |
41ade00f | 2323 | |
b9454e83 | 2324 | if (!key.p.key) |
41ade00f JB |
2325 | return -EINVAL; |
2326 | ||
41ade00f JB |
2327 | if (info->attrs[NL80211_ATTR_MAC]) |
2328 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2329 | ||
e31b8213 JB |
2330 | if (key.type == -1) { |
2331 | if (mac_addr) | |
2332 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2333 | else | |
2334 | key.type = NL80211_KEYTYPE_GROUP; | |
2335 | } | |
2336 | ||
2337 | /* for now */ | |
2338 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2339 | key.type != NL80211_KEYTYPE_GROUP) | |
2340 | return -EINVAL; | |
2341 | ||
4c476991 JB |
2342 | if (!rdev->ops->add_key) |
2343 | return -EOPNOTSUPP; | |
25e47c18 | 2344 | |
e31b8213 JB |
2345 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2346 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2347 | mac_addr)) | |
4c476991 | 2348 | return -EINVAL; |
41ade00f | 2349 | |
fffd0934 JB |
2350 | wdev_lock(dev->ieee80211_ptr); |
2351 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2352 | if (!err) | |
e35e4d28 HG |
2353 | err = rdev_add_key(rdev, dev, key.idx, |
2354 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2355 | mac_addr, &key.p); | |
fffd0934 | 2356 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2357 | |
41ade00f JB |
2358 | return err; |
2359 | } | |
2360 | ||
2361 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2362 | { | |
4c476991 | 2363 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2364 | int err; |
4c476991 | 2365 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2366 | u8 *mac_addr = NULL; |
b9454e83 | 2367 | struct key_parse key; |
41ade00f | 2368 | |
b9454e83 JB |
2369 | err = nl80211_parse_key(info, &key); |
2370 | if (err) | |
2371 | return err; | |
41ade00f JB |
2372 | |
2373 | if (info->attrs[NL80211_ATTR_MAC]) | |
2374 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2375 | ||
e31b8213 JB |
2376 | if (key.type == -1) { |
2377 | if (mac_addr) | |
2378 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2379 | else | |
2380 | key.type = NL80211_KEYTYPE_GROUP; | |
2381 | } | |
2382 | ||
2383 | /* for now */ | |
2384 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2385 | key.type != NL80211_KEYTYPE_GROUP) | |
2386 | return -EINVAL; | |
2387 | ||
4c476991 JB |
2388 | if (!rdev->ops->del_key) |
2389 | return -EOPNOTSUPP; | |
41ade00f | 2390 | |
fffd0934 JB |
2391 | wdev_lock(dev->ieee80211_ptr); |
2392 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
2393 | |
2394 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2395 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2396 | err = -ENOENT; | |
2397 | ||
fffd0934 | 2398 | if (!err) |
e35e4d28 HG |
2399 | err = rdev_del_key(rdev, dev, key.idx, |
2400 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2401 | mac_addr); | |
41ade00f | 2402 | |
3d23e349 | 2403 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 2404 | if (!err) { |
b9454e83 | 2405 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 2406 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 2407 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
2408 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2409 | } | |
2410 | #endif | |
fffd0934 | 2411 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 2412 | |
41ade00f JB |
2413 | return err; |
2414 | } | |
2415 | ||
8860020e JB |
2416 | static int nl80211_parse_beacon(struct genl_info *info, |
2417 | struct cfg80211_beacon_data *bcn) | |
ed1b6cc7 | 2418 | { |
8860020e | 2419 | bool haveinfo = false; |
ed1b6cc7 | 2420 | |
9946ecfb JM |
2421 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) || |
2422 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) || | |
2423 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
2424 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
2425 | return -EINVAL; |
2426 | ||
8860020e | 2427 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 2428 | |
ed1b6cc7 | 2429 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
8860020e JB |
2430 | bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
2431 | bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2432 | if (!bcn->head_len) | |
2433 | return -EINVAL; | |
2434 | haveinfo = true; | |
ed1b6cc7 JB |
2435 | } |
2436 | ||
2437 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
8860020e JB |
2438 | bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
2439 | bcn->tail_len = | |
ed1b6cc7 | 2440 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
8860020e | 2441 | haveinfo = true; |
ed1b6cc7 JB |
2442 | } |
2443 | ||
4c476991 JB |
2444 | if (!haveinfo) |
2445 | return -EINVAL; | |
3b85875a | 2446 | |
9946ecfb | 2447 | if (info->attrs[NL80211_ATTR_IE]) { |
8860020e JB |
2448 | bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]); |
2449 | bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
2450 | } |
2451 | ||
2452 | if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
8860020e | 2453 | bcn->proberesp_ies = |
9946ecfb | 2454 | nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 2455 | bcn->proberesp_ies_len = |
9946ecfb JM |
2456 | nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
2457 | } | |
2458 | ||
2459 | if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
8860020e | 2460 | bcn->assocresp_ies = |
9946ecfb | 2461 | nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 2462 | bcn->assocresp_ies_len = |
9946ecfb JM |
2463 | nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
2464 | } | |
2465 | ||
00f740e1 | 2466 | if (info->attrs[NL80211_ATTR_PROBE_RESP]) { |
8860020e | 2467 | bcn->probe_resp = |
00f740e1 | 2468 | nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]); |
8860020e | 2469 | bcn->probe_resp_len = |
00f740e1 AN |
2470 | nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]); |
2471 | } | |
2472 | ||
8860020e JB |
2473 | return 0; |
2474 | } | |
2475 | ||
46c1dd0c FF |
2476 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
2477 | struct cfg80211_ap_settings *params) | |
2478 | { | |
2479 | struct wireless_dev *wdev; | |
2480 | bool ret = false; | |
2481 | ||
2482 | mutex_lock(&rdev->devlist_mtx); | |
2483 | ||
89a54e48 | 2484 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
46c1dd0c FF |
2485 | if (wdev->iftype != NL80211_IFTYPE_AP && |
2486 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
2487 | continue; | |
2488 | ||
2489 | if (!wdev->preset_chan) | |
2490 | continue; | |
2491 | ||
2492 | params->channel = wdev->preset_chan; | |
2493 | params->channel_type = wdev->preset_chantype; | |
2494 | ret = true; | |
2495 | break; | |
2496 | } | |
2497 | ||
2498 | mutex_unlock(&rdev->devlist_mtx); | |
2499 | ||
2500 | return ret; | |
2501 | } | |
2502 | ||
e39e5b5e JM |
2503 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
2504 | enum nl80211_auth_type auth_type, | |
2505 | enum nl80211_commands cmd) | |
2506 | { | |
2507 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
2508 | return false; | |
2509 | ||
2510 | switch (cmd) { | |
2511 | case NL80211_CMD_AUTHENTICATE: | |
2512 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
2513 | auth_type == NL80211_AUTHTYPE_SAE) | |
2514 | return false; | |
2515 | return true; | |
2516 | case NL80211_CMD_CONNECT: | |
2517 | case NL80211_CMD_START_AP: | |
2518 | /* SAE not supported yet */ | |
2519 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
2520 | return false; | |
2521 | return true; | |
2522 | default: | |
2523 | return false; | |
2524 | } | |
2525 | } | |
2526 | ||
8860020e JB |
2527 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
2528 | { | |
2529 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2530 | struct net_device *dev = info->user_ptr[1]; | |
2531 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2532 | struct cfg80211_ap_settings params; | |
2533 | int err; | |
2534 | ||
2535 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2536 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2537 | return -EOPNOTSUPP; | |
2538 | ||
2539 | if (!rdev->ops->start_ap) | |
2540 | return -EOPNOTSUPP; | |
2541 | ||
2542 | if (wdev->beacon_interval) | |
2543 | return -EALREADY; | |
2544 | ||
2545 | memset(¶ms, 0, sizeof(params)); | |
2546 | ||
2547 | /* these are required for START_AP */ | |
2548 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
2549 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
2550 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
2551 | return -EINVAL; | |
2552 | ||
2553 | err = nl80211_parse_beacon(info, ¶ms.beacon); | |
2554 | if (err) | |
2555 | return err; | |
2556 | ||
2557 | params.beacon_interval = | |
2558 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
2559 | params.dtim_period = | |
2560 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
2561 | ||
2562 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
2563 | if (err) | |
2564 | return err; | |
2565 | ||
2566 | /* | |
2567 | * In theory, some of these attributes should be required here | |
2568 | * but since they were not used when the command was originally | |
2569 | * added, keep them optional for old user space programs to let | |
2570 | * them continue to work with drivers that do not need the | |
2571 | * additional information -- drivers must check! | |
2572 | */ | |
2573 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2574 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2575 | params.ssid_len = | |
2576 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2577 | if (params.ssid_len == 0 || | |
2578 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
2579 | return -EINVAL; | |
2580 | } | |
2581 | ||
2582 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
2583 | params.hidden_ssid = nla_get_u32( | |
2584 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
2585 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
2586 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
2587 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
2588 | return -EINVAL; | |
2589 | } | |
2590 | ||
2591 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
2592 | ||
2593 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2594 | params.auth_type = nla_get_u32( | |
2595 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
2596 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
2597 | NL80211_CMD_START_AP)) | |
8860020e JB |
2598 | return -EINVAL; |
2599 | } else | |
2600 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
2601 | ||
2602 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
2603 | NL80211_MAX_NR_CIPHER_SUITES); | |
2604 | if (err) | |
2605 | return err; | |
2606 | ||
1b658f11 VT |
2607 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
2608 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
2609 | return -EOPNOTSUPP; | |
2610 | params.inactivity_timeout = nla_get_u16( | |
2611 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
2612 | } | |
2613 | ||
aa430da4 JB |
2614 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
2615 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
2616 | ||
2617 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
2618 | !nl80211_valid_channel_type(info, &channel_type)) | |
2619 | return -EINVAL; | |
2620 | ||
2621 | params.channel = rdev_freq_to_chan(rdev, | |
2622 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
2623 | channel_type); | |
2624 | if (!params.channel) | |
2625 | return -EINVAL; | |
2626 | params.channel_type = channel_type; | |
2627 | } else if (wdev->preset_chan) { | |
2628 | params.channel = wdev->preset_chan; | |
2629 | params.channel_type = wdev->preset_chantype; | |
46c1dd0c | 2630 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
aa430da4 JB |
2631 | return -EINVAL; |
2632 | ||
2633 | if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel, | |
2634 | params.channel_type)) | |
2635 | return -EINVAL; | |
2636 | ||
e4e32459 MK |
2637 | mutex_lock(&rdev->devlist_mtx); |
2638 | err = cfg80211_can_use_chan(rdev, wdev, params.channel, | |
2639 | CHAN_MODE_SHARED); | |
2640 | mutex_unlock(&rdev->devlist_mtx); | |
2641 | ||
2642 | if (err) | |
2643 | return err; | |
2644 | ||
e35e4d28 | 2645 | err = rdev_start_ap(rdev, dev, ¶ms); |
46c1dd0c FF |
2646 | if (!err) { |
2647 | wdev->preset_chan = params.channel; | |
2648 | wdev->preset_chantype = params.channel_type; | |
8860020e | 2649 | wdev->beacon_interval = params.beacon_interval; |
f4489ebe | 2650 | wdev->channel = params.channel; |
46c1dd0c | 2651 | } |
56d1893d | 2652 | return err; |
ed1b6cc7 JB |
2653 | } |
2654 | ||
8860020e JB |
2655 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
2656 | { | |
2657 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2658 | struct net_device *dev = info->user_ptr[1]; | |
2659 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2660 | struct cfg80211_beacon_data params; | |
2661 | int err; | |
2662 | ||
2663 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2664 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2665 | return -EOPNOTSUPP; | |
2666 | ||
2667 | if (!rdev->ops->change_beacon) | |
2668 | return -EOPNOTSUPP; | |
2669 | ||
2670 | if (!wdev->beacon_interval) | |
2671 | return -EINVAL; | |
2672 | ||
2673 | err = nl80211_parse_beacon(info, ¶ms); | |
2674 | if (err) | |
2675 | return err; | |
2676 | ||
e35e4d28 | 2677 | return rdev_change_beacon(rdev, dev, ¶ms); |
8860020e JB |
2678 | } |
2679 | ||
2680 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 2681 | { |
4c476991 JB |
2682 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2683 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 2684 | |
60771780 | 2685 | return cfg80211_stop_ap(rdev, dev); |
ed1b6cc7 JB |
2686 | } |
2687 | ||
5727ef1b JB |
2688 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
2689 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
2690 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
2691 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 2692 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 2693 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 2694 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
2695 | }; |
2696 | ||
eccb8e8f | 2697 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 2698 | enum nl80211_iftype iftype, |
eccb8e8f | 2699 | struct station_parameters *params) |
5727ef1b JB |
2700 | { |
2701 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 2702 | struct nlattr *nla; |
5727ef1b JB |
2703 | int flag; |
2704 | ||
eccb8e8f JB |
2705 | /* |
2706 | * Try parsing the new attribute first so userspace | |
2707 | * can specify both for older kernels. | |
2708 | */ | |
2709 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
2710 | if (nla) { | |
2711 | struct nl80211_sta_flag_update *sta_flags; | |
2712 | ||
2713 | sta_flags = nla_data(nla); | |
2714 | params->sta_flags_mask = sta_flags->mask; | |
2715 | params->sta_flags_set = sta_flags->set; | |
2716 | if ((params->sta_flags_mask | | |
2717 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
2718 | return -EINVAL; | |
2719 | return 0; | |
2720 | } | |
2721 | ||
2722 | /* if present, parse the old attribute */ | |
5727ef1b | 2723 | |
eccb8e8f | 2724 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
2725 | if (!nla) |
2726 | return 0; | |
2727 | ||
2728 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
2729 | nla, sta_flags_policy)) | |
2730 | return -EINVAL; | |
2731 | ||
bdd3ae3d JB |
2732 | /* |
2733 | * Only allow certain flags for interface types so that | |
2734 | * other attributes are silently ignored. Remember that | |
2735 | * this is backward compatibility code with old userspace | |
2736 | * and shouldn't be hit in other cases anyway. | |
2737 | */ | |
2738 | switch (iftype) { | |
2739 | case NL80211_IFTYPE_AP: | |
2740 | case NL80211_IFTYPE_AP_VLAN: | |
2741 | case NL80211_IFTYPE_P2P_GO: | |
2742 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2743 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2744 | BIT(NL80211_STA_FLAG_WME) | | |
2745 | BIT(NL80211_STA_FLAG_MFP); | |
2746 | break; | |
2747 | case NL80211_IFTYPE_P2P_CLIENT: | |
2748 | case NL80211_IFTYPE_STATION: | |
2749 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2750 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2751 | break; | |
2752 | case NL80211_IFTYPE_MESH_POINT: | |
2753 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
2754 | BIT(NL80211_STA_FLAG_MFP) | | |
2755 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
2756 | default: | |
2757 | return -EINVAL; | |
2758 | } | |
5727ef1b | 2759 | |
3383b5a6 JB |
2760 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
2761 | if (flags[flag]) { | |
eccb8e8f | 2762 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 2763 | |
3383b5a6 JB |
2764 | /* no longer support new API additions in old API */ |
2765 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
2766 | return -EINVAL; | |
2767 | } | |
2768 | } | |
2769 | ||
5727ef1b JB |
2770 | return 0; |
2771 | } | |
2772 | ||
c8dcfd8a FF |
2773 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
2774 | int attr) | |
2775 | { | |
2776 | struct nlattr *rate; | |
8eb41c8d VK |
2777 | u32 bitrate; |
2778 | u16 bitrate_compat; | |
c8dcfd8a FF |
2779 | |
2780 | rate = nla_nest_start(msg, attr); | |
2781 | if (!rate) | |
2782 | goto nla_put_failure; | |
2783 | ||
2784 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
2785 | bitrate = cfg80211_calculate_bitrate(info); | |
8eb41c8d VK |
2786 | /* report 16-bit bitrate only if we can */ |
2787 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
9360ffd1 | 2788 | if ((bitrate > 0 && |
8eb41c8d VK |
2789 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) || |
2790 | (bitrate_compat > 0 && | |
2791 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) || | |
9360ffd1 DM |
2792 | ((info->flags & RATE_INFO_FLAGS_MCS) && |
2793 | nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) || | |
2794 | ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) && | |
2795 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) || | |
2796 | ((info->flags & RATE_INFO_FLAGS_SHORT_GI) && | |
2797 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))) | |
2798 | goto nla_put_failure; | |
c8dcfd8a FF |
2799 | |
2800 | nla_nest_end(msg, rate); | |
2801 | return true; | |
2802 | ||
2803 | nla_put_failure: | |
2804 | return false; | |
2805 | } | |
2806 | ||
15e47304 | 2807 | static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, |
66266b3a JL |
2808 | int flags, |
2809 | struct cfg80211_registered_device *rdev, | |
2810 | struct net_device *dev, | |
98b62183 | 2811 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
2812 | { |
2813 | void *hdr; | |
f4263c98 | 2814 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc | 2815 | |
15e47304 | 2816 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
fd5b74dc JB |
2817 | if (!hdr) |
2818 | return -1; | |
2819 | ||
9360ffd1 DM |
2820 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2821 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
2822 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
2823 | goto nla_put_failure; | |
f5ea9120 | 2824 | |
2ec600d6 LCC |
2825 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
2826 | if (!sinfoattr) | |
fd5b74dc | 2827 | goto nla_put_failure; |
9360ffd1 DM |
2828 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && |
2829 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
2830 | sinfo->connected_time)) | |
2831 | goto nla_put_failure; | |
2832 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && | |
2833 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
2834 | sinfo->inactive_time)) | |
2835 | goto nla_put_failure; | |
2836 | if ((sinfo->filled & STATION_INFO_RX_BYTES) && | |
2837 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, | |
2838 | sinfo->rx_bytes)) | |
2839 | goto nla_put_failure; | |
2840 | if ((sinfo->filled & STATION_INFO_TX_BYTES) && | |
2841 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, | |
2842 | sinfo->tx_bytes)) | |
2843 | goto nla_put_failure; | |
2844 | if ((sinfo->filled & STATION_INFO_LLID) && | |
2845 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) | |
2846 | goto nla_put_failure; | |
2847 | if ((sinfo->filled & STATION_INFO_PLID) && | |
2848 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) | |
2849 | goto nla_put_failure; | |
2850 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && | |
2851 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, | |
2852 | sinfo->plink_state)) | |
2853 | goto nla_put_failure; | |
66266b3a JL |
2854 | switch (rdev->wiphy.signal_type) { |
2855 | case CFG80211_SIGNAL_TYPE_MBM: | |
9360ffd1 DM |
2856 | if ((sinfo->filled & STATION_INFO_SIGNAL) && |
2857 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, | |
2858 | sinfo->signal)) | |
2859 | goto nla_put_failure; | |
2860 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && | |
2861 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
2862 | sinfo->signal_avg)) | |
2863 | goto nla_put_failure; | |
66266b3a JL |
2864 | break; |
2865 | default: | |
2866 | break; | |
2867 | } | |
420e7fab | 2868 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
c8dcfd8a FF |
2869 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
2870 | NL80211_STA_INFO_TX_BITRATE)) | |
2871 | goto nla_put_failure; | |
2872 | } | |
2873 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
2874 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
2875 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 2876 | goto nla_put_failure; |
420e7fab | 2877 | } |
9360ffd1 DM |
2878 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && |
2879 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, | |
2880 | sinfo->rx_packets)) | |
2881 | goto nla_put_failure; | |
2882 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && | |
2883 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, | |
2884 | sinfo->tx_packets)) | |
2885 | goto nla_put_failure; | |
2886 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && | |
2887 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, | |
2888 | sinfo->tx_retries)) | |
2889 | goto nla_put_failure; | |
2890 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && | |
2891 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, | |
2892 | sinfo->tx_failed)) | |
2893 | goto nla_put_failure; | |
2894 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && | |
2895 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
2896 | sinfo->beacon_loss_count)) | |
2897 | goto nla_put_failure; | |
f4263c98 PS |
2898 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
2899 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
2900 | if (!bss_param) | |
2901 | goto nla_put_failure; | |
2902 | ||
9360ffd1 DM |
2903 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
2904 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
2905 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
2906 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
2907 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
2908 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
2909 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
2910 | sinfo->bss_param.dtim_period) || | |
2911 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
2912 | sinfo->bss_param.beacon_interval)) | |
2913 | goto nla_put_failure; | |
f4263c98 PS |
2914 | |
2915 | nla_nest_end(msg, bss_param); | |
2916 | } | |
9360ffd1 DM |
2917 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && |
2918 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
2919 | sizeof(struct nl80211_sta_flag_update), | |
2920 | &sinfo->sta_flags)) | |
2921 | goto nla_put_failure; | |
7eab0f64 JL |
2922 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && |
2923 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, | |
2924 | sinfo->t_offset)) | |
2925 | goto nla_put_failure; | |
2ec600d6 | 2926 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 2927 | |
9360ffd1 DM |
2928 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && |
2929 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
2930 | sinfo->assoc_req_ies)) | |
2931 | goto nla_put_failure; | |
50d3dfb7 | 2932 | |
fd5b74dc JB |
2933 | return genlmsg_end(msg, hdr); |
2934 | ||
2935 | nla_put_failure: | |
bc3ed28c TG |
2936 | genlmsg_cancel(msg, hdr); |
2937 | return -EMSGSIZE; | |
fd5b74dc JB |
2938 | } |
2939 | ||
2ec600d6 | 2940 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 2941 | struct netlink_callback *cb) |
2ec600d6 | 2942 | { |
2ec600d6 LCC |
2943 | struct station_info sinfo; |
2944 | struct cfg80211_registered_device *dev; | |
bba95fef | 2945 | struct net_device *netdev; |
2ec600d6 | 2946 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 2947 | int sta_idx = cb->args[1]; |
2ec600d6 | 2948 | int err; |
2ec600d6 | 2949 | |
67748893 JB |
2950 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2951 | if (err) | |
2952 | return err; | |
bba95fef JB |
2953 | |
2954 | if (!dev->ops->dump_station) { | |
eec60b03 | 2955 | err = -EOPNOTSUPP; |
bba95fef JB |
2956 | goto out_err; |
2957 | } | |
2958 | ||
bba95fef | 2959 | while (1) { |
f612cedf | 2960 | memset(&sinfo, 0, sizeof(sinfo)); |
e35e4d28 HG |
2961 | err = rdev_dump_station(dev, netdev, sta_idx, |
2962 | mac_addr, &sinfo); | |
bba95fef JB |
2963 | if (err == -ENOENT) |
2964 | break; | |
2965 | if (err) | |
3b85875a | 2966 | goto out_err; |
bba95fef JB |
2967 | |
2968 | if (nl80211_send_station(skb, | |
15e47304 | 2969 | NETLINK_CB(cb->skb).portid, |
bba95fef | 2970 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
66266b3a | 2971 | dev, netdev, mac_addr, |
bba95fef JB |
2972 | &sinfo) < 0) |
2973 | goto out; | |
2974 | ||
2975 | sta_idx++; | |
2976 | } | |
2977 | ||
2978 | ||
2979 | out: | |
2980 | cb->args[1] = sta_idx; | |
2981 | err = skb->len; | |
bba95fef | 2982 | out_err: |
67748893 | 2983 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
2984 | |
2985 | return err; | |
2ec600d6 | 2986 | } |
fd5b74dc | 2987 | |
5727ef1b JB |
2988 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
2989 | { | |
4c476991 JB |
2990 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2991 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 2992 | struct station_info sinfo; |
fd5b74dc JB |
2993 | struct sk_buff *msg; |
2994 | u8 *mac_addr = NULL; | |
4c476991 | 2995 | int err; |
fd5b74dc | 2996 | |
2ec600d6 | 2997 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2998 | |
2999 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3000 | return -EINVAL; | |
3001 | ||
3002 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3003 | ||
4c476991 JB |
3004 | if (!rdev->ops->get_station) |
3005 | return -EOPNOTSUPP; | |
3b85875a | 3006 | |
e35e4d28 | 3007 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
fd5b74dc | 3008 | if (err) |
4c476991 | 3009 | return err; |
2ec600d6 | 3010 | |
fd2120ca | 3011 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 3012 | if (!msg) |
4c476991 | 3013 | return -ENOMEM; |
fd5b74dc | 3014 | |
15e47304 | 3015 | if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0, |
66266b3a | 3016 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
3017 | nlmsg_free(msg); |
3018 | return -ENOBUFS; | |
3019 | } | |
3b85875a | 3020 | |
4c476991 | 3021 | return genlmsg_reply(msg, info); |
5727ef1b JB |
3022 | } |
3023 | ||
3024 | /* | |
c258d2de | 3025 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 3026 | */ |
80b99899 JB |
3027 | static struct net_device *get_vlan(struct genl_info *info, |
3028 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 3029 | { |
463d0183 | 3030 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
3031 | struct net_device *v; |
3032 | int ret; | |
3033 | ||
3034 | if (!vlanattr) | |
3035 | return NULL; | |
3036 | ||
3037 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
3038 | if (!v) | |
3039 | return ERR_PTR(-ENODEV); | |
3040 | ||
3041 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
3042 | ret = -EINVAL; | |
3043 | goto error; | |
5727ef1b | 3044 | } |
80b99899 JB |
3045 | |
3046 | if (!netif_running(v)) { | |
3047 | ret = -ENETDOWN; | |
3048 | goto error; | |
3049 | } | |
3050 | ||
3051 | return v; | |
3052 | error: | |
3053 | dev_put(v); | |
3054 | return ERR_PTR(ret); | |
5727ef1b JB |
3055 | } |
3056 | ||
3057 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
3058 | { | |
4c476991 | 3059 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 3060 | int err; |
4c476991 | 3061 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
3062 | struct station_parameters params; |
3063 | u8 *mac_addr = NULL; | |
3064 | ||
3065 | memset(¶ms, 0, sizeof(params)); | |
3066 | ||
3067 | params.listen_interval = -1; | |
57cf8043 | 3068 | params.plink_state = -1; |
5727ef1b JB |
3069 | |
3070 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
3071 | return -EINVAL; | |
3072 | ||
3073 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3074 | return -EINVAL; | |
3075 | ||
3076 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3077 | ||
3078 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
3079 | params.supported_rates = | |
3080 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3081 | params.supported_rates_len = | |
3082 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3083 | } | |
3084 | ||
3085 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
3086 | params.listen_interval = | |
3087 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
3088 | ||
36aedc90 JM |
3089 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
3090 | params.ht_capa = | |
3091 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
3092 | ||
bdd90d5e JB |
3093 | if (!rdev->ops->change_station) |
3094 | return -EOPNOTSUPP; | |
3095 | ||
bdd3ae3d | 3096 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
3097 | return -EINVAL; |
3098 | ||
2ec600d6 LCC |
3099 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
3100 | params.plink_action = | |
3101 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3102 | ||
9c3990aa JC |
3103 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) |
3104 | params.plink_state = | |
3105 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
3106 | ||
a97f4424 JB |
3107 | switch (dev->ieee80211_ptr->iftype) { |
3108 | case NL80211_IFTYPE_AP: | |
3109 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 3110 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
3111 | /* disallow mesh-specific things */ |
3112 | if (params.plink_action) | |
bdd90d5e JB |
3113 | return -EINVAL; |
3114 | ||
3115 | /* TDLS can't be set, ... */ | |
3116 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3117 | return -EINVAL; | |
3118 | /* | |
3119 | * ... but don't bother the driver with it. This works around | |
3120 | * a hostapd/wpa_supplicant issue -- it always includes the | |
3121 | * TLDS_PEER flag in the mask even for AP mode. | |
3122 | */ | |
3123 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3124 | ||
3125 | /* accept only the listed bits */ | |
3126 | if (params.sta_flags_mask & | |
3127 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3128 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3129 | BIT(NL80211_STA_FLAG_WME) | | |
3130 | BIT(NL80211_STA_FLAG_MFP))) | |
3131 | return -EINVAL; | |
3132 | ||
3133 | /* must be last in here for error handling */ | |
3134 | params.vlan = get_vlan(info, rdev); | |
3135 | if (IS_ERR(params.vlan)) | |
3136 | return PTR_ERR(params.vlan); | |
a97f4424 | 3137 | break; |
074ac8df | 3138 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 3139 | case NL80211_IFTYPE_STATION: |
bdd90d5e JB |
3140 | /* |
3141 | * Don't allow userspace to change the TDLS_PEER flag, | |
3142 | * but silently ignore attempts to change it since we | |
3143 | * don't have state here to verify that it doesn't try | |
3144 | * to change the flag. | |
3145 | */ | |
3146 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
267335d6 AQ |
3147 | /* fall through */ |
3148 | case NL80211_IFTYPE_ADHOC: | |
3149 | /* disallow things sta doesn't support */ | |
3150 | if (params.plink_action) | |
3151 | return -EINVAL; | |
3152 | if (params.ht_capa) | |
3153 | return -EINVAL; | |
3154 | if (params.listen_interval >= 0) | |
3155 | return -EINVAL; | |
bdd90d5e JB |
3156 | /* reject any changes other than AUTHORIZED */ |
3157 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
3158 | return -EINVAL; | |
a97f4424 JB |
3159 | break; |
3160 | case NL80211_IFTYPE_MESH_POINT: | |
3161 | /* disallow things mesh doesn't support */ | |
3162 | if (params.vlan) | |
bdd90d5e | 3163 | return -EINVAL; |
a97f4424 | 3164 | if (params.ht_capa) |
bdd90d5e | 3165 | return -EINVAL; |
a97f4424 | 3166 | if (params.listen_interval >= 0) |
bdd90d5e JB |
3167 | return -EINVAL; |
3168 | /* | |
3169 | * No special handling for TDLS here -- the userspace | |
3170 | * mesh code doesn't have this bug. | |
3171 | */ | |
b39c48fa JC |
3172 | if (params.sta_flags_mask & |
3173 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
8429828e | 3174 | BIT(NL80211_STA_FLAG_MFP) | |
b39c48fa | 3175 | BIT(NL80211_STA_FLAG_AUTHORIZED))) |
bdd90d5e | 3176 | return -EINVAL; |
a97f4424 JB |
3177 | break; |
3178 | default: | |
bdd90d5e | 3179 | return -EOPNOTSUPP; |
034d655e JB |
3180 | } |
3181 | ||
bdd90d5e | 3182 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3183 | |
e35e4d28 | 3184 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 3185 | |
5727ef1b JB |
3186 | if (params.vlan) |
3187 | dev_put(params.vlan); | |
3b85875a | 3188 | |
5727ef1b JB |
3189 | return err; |
3190 | } | |
3191 | ||
c75786c9 EP |
3192 | static struct nla_policy |
3193 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { | |
3194 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
3195 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
3196 | }; | |
3197 | ||
5727ef1b JB |
3198 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
3199 | { | |
4c476991 | 3200 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 3201 | int err; |
4c476991 | 3202 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
3203 | struct station_parameters params; |
3204 | u8 *mac_addr = NULL; | |
3205 | ||
3206 | memset(¶ms, 0, sizeof(params)); | |
3207 | ||
3208 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3209 | return -EINVAL; | |
3210 | ||
5727ef1b JB |
3211 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
3212 | return -EINVAL; | |
3213 | ||
3214 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
3215 | return -EINVAL; | |
3216 | ||
0e956c13 TLSC |
3217 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
3218 | return -EINVAL; | |
3219 | ||
5727ef1b JB |
3220 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
3221 | params.supported_rates = | |
3222 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3223 | params.supported_rates_len = | |
3224 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3225 | params.listen_interval = | |
3226 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 3227 | |
0e956c13 TLSC |
3228 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
3229 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
3230 | return -EINVAL; | |
51b50fbe | 3231 | |
36aedc90 JM |
3232 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
3233 | params.ht_capa = | |
3234 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 3235 | |
f461be3e MP |
3236 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
3237 | params.vht_capa = | |
3238 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
3239 | ||
96b78dff JC |
3240 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
3241 | params.plink_action = | |
3242 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3243 | ||
bdd90d5e JB |
3244 | if (!rdev->ops->add_station) |
3245 | return -EOPNOTSUPP; | |
3246 | ||
bdd3ae3d | 3247 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
3248 | return -EINVAL; |
3249 | ||
bdd90d5e JB |
3250 | switch (dev->ieee80211_ptr->iftype) { |
3251 | case NL80211_IFTYPE_AP: | |
3252 | case NL80211_IFTYPE_AP_VLAN: | |
3253 | case NL80211_IFTYPE_P2P_GO: | |
3254 | /* parse WME attributes if sta is WME capable */ | |
3255 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
3256 | (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) && | |
3257 | info->attrs[NL80211_ATTR_STA_WME]) { | |
3258 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
3259 | struct nlattr *nla; | |
3260 | ||
3261 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
3262 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
3263 | nl80211_sta_wme_policy); | |
3264 | if (err) | |
3265 | return err; | |
3266 | ||
3267 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
3268 | params.uapsd_queues = | |
3269 | nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
3270 | if (params.uapsd_queues & | |
3271 | ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
3272 | return -EINVAL; | |
c75786c9 | 3273 | |
bdd90d5e JB |
3274 | if (tb[NL80211_STA_WME_MAX_SP]) |
3275 | params.max_sp = | |
3276 | nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
c75786c9 | 3277 | |
bdd90d5e JB |
3278 | if (params.max_sp & |
3279 | ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
3280 | return -EINVAL; | |
4319e193 | 3281 | |
bdd90d5e JB |
3282 | params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
3283 | } | |
3284 | /* TDLS peers cannot be added */ | |
3285 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4319e193 | 3286 | return -EINVAL; |
bdd90d5e JB |
3287 | /* but don't bother the driver with it */ |
3288 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 3289 | |
bdd90d5e JB |
3290 | /* must be last in here for error handling */ |
3291 | params.vlan = get_vlan(info, rdev); | |
3292 | if (IS_ERR(params.vlan)) | |
3293 | return PTR_ERR(params.vlan); | |
3294 | break; | |
3295 | case NL80211_IFTYPE_MESH_POINT: | |
3296 | /* TDLS peers cannot be added */ | |
3297 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3298 | return -EINVAL; | |
3299 | break; | |
3300 | case NL80211_IFTYPE_STATION: | |
3301 | /* Only TDLS peers can be added */ | |
3302 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3303 | return -EINVAL; | |
3304 | /* Can only add if TDLS ... */ | |
3305 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
3306 | return -EOPNOTSUPP; | |
3307 | /* ... with external setup is supported */ | |
3308 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
3309 | return -EOPNOTSUPP; | |
3310 | break; | |
3311 | default: | |
3312 | return -EOPNOTSUPP; | |
c75786c9 EP |
3313 | } |
3314 | ||
bdd90d5e | 3315 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3316 | |
e35e4d28 | 3317 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 3318 | |
5727ef1b JB |
3319 | if (params.vlan) |
3320 | dev_put(params.vlan); | |
5727ef1b JB |
3321 | return err; |
3322 | } | |
3323 | ||
3324 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
3325 | { | |
4c476991 JB |
3326 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3327 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
3328 | u8 *mac_addr = NULL; |
3329 | ||
3330 | if (info->attrs[NL80211_ATTR_MAC]) | |
3331 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3332 | ||
e80cf853 | 3333 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 3334 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 3335 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
3336 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3337 | return -EINVAL; | |
5727ef1b | 3338 | |
4c476991 JB |
3339 | if (!rdev->ops->del_station) |
3340 | return -EOPNOTSUPP; | |
3b85875a | 3341 | |
e35e4d28 | 3342 | return rdev_del_station(rdev, dev, mac_addr); |
5727ef1b JB |
3343 | } |
3344 | ||
15e47304 | 3345 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
2ec600d6 LCC |
3346 | int flags, struct net_device *dev, |
3347 | u8 *dst, u8 *next_hop, | |
3348 | struct mpath_info *pinfo) | |
3349 | { | |
3350 | void *hdr; | |
3351 | struct nlattr *pinfoattr; | |
3352 | ||
15e47304 | 3353 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
2ec600d6 LCC |
3354 | if (!hdr) |
3355 | return -1; | |
3356 | ||
9360ffd1 DM |
3357 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3358 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
3359 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
3360 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
3361 | goto nla_put_failure; | |
f5ea9120 | 3362 | |
2ec600d6 LCC |
3363 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
3364 | if (!pinfoattr) | |
3365 | goto nla_put_failure; | |
9360ffd1 DM |
3366 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
3367 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
3368 | pinfo->frame_qlen)) | |
3369 | goto nla_put_failure; | |
3370 | if (((pinfo->filled & MPATH_INFO_SN) && | |
3371 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
3372 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
3373 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
3374 | pinfo->metric)) || | |
3375 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
3376 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
3377 | pinfo->exptime)) || | |
3378 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
3379 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
3380 | pinfo->flags)) || | |
3381 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
3382 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
3383 | pinfo->discovery_timeout)) || | |
3384 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
3385 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
3386 | pinfo->discovery_retries))) | |
3387 | goto nla_put_failure; | |
2ec600d6 LCC |
3388 | |
3389 | nla_nest_end(msg, pinfoattr); | |
3390 | ||
3391 | return genlmsg_end(msg, hdr); | |
3392 | ||
3393 | nla_put_failure: | |
bc3ed28c TG |
3394 | genlmsg_cancel(msg, hdr); |
3395 | return -EMSGSIZE; | |
2ec600d6 LCC |
3396 | } |
3397 | ||
3398 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 3399 | struct netlink_callback *cb) |
2ec600d6 | 3400 | { |
2ec600d6 LCC |
3401 | struct mpath_info pinfo; |
3402 | struct cfg80211_registered_device *dev; | |
bba95fef | 3403 | struct net_device *netdev; |
2ec600d6 LCC |
3404 | u8 dst[ETH_ALEN]; |
3405 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 3406 | int path_idx = cb->args[1]; |
2ec600d6 | 3407 | int err; |
2ec600d6 | 3408 | |
67748893 JB |
3409 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3410 | if (err) | |
3411 | return err; | |
bba95fef JB |
3412 | |
3413 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 3414 | err = -EOPNOTSUPP; |
bba95fef JB |
3415 | goto out_err; |
3416 | } | |
3417 | ||
eec60b03 JM |
3418 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
3419 | err = -EOPNOTSUPP; | |
0448b5fc | 3420 | goto out_err; |
eec60b03 JM |
3421 | } |
3422 | ||
bba95fef | 3423 | while (1) { |
e35e4d28 HG |
3424 | err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop, |
3425 | &pinfo); | |
bba95fef | 3426 | if (err == -ENOENT) |
2ec600d6 | 3427 | break; |
bba95fef | 3428 | if (err) |
3b85875a | 3429 | goto out_err; |
2ec600d6 | 3430 | |
15e47304 | 3431 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
bba95fef JB |
3432 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
3433 | netdev, dst, next_hop, | |
3434 | &pinfo) < 0) | |
3435 | goto out; | |
2ec600d6 | 3436 | |
bba95fef | 3437 | path_idx++; |
2ec600d6 | 3438 | } |
2ec600d6 | 3439 | |
2ec600d6 | 3440 | |
bba95fef JB |
3441 | out: |
3442 | cb->args[1] = path_idx; | |
3443 | err = skb->len; | |
bba95fef | 3444 | out_err: |
67748893 | 3445 | nl80211_finish_netdev_dump(dev); |
bba95fef | 3446 | return err; |
2ec600d6 LCC |
3447 | } |
3448 | ||
3449 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
3450 | { | |
4c476991 | 3451 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 3452 | int err; |
4c476991 | 3453 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
3454 | struct mpath_info pinfo; |
3455 | struct sk_buff *msg; | |
3456 | u8 *dst = NULL; | |
3457 | u8 next_hop[ETH_ALEN]; | |
3458 | ||
3459 | memset(&pinfo, 0, sizeof(pinfo)); | |
3460 | ||
3461 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3462 | return -EINVAL; | |
3463 | ||
3464 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3465 | ||
4c476991 JB |
3466 | if (!rdev->ops->get_mpath) |
3467 | return -EOPNOTSUPP; | |
2ec600d6 | 3468 | |
4c476991 JB |
3469 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3470 | return -EOPNOTSUPP; | |
eec60b03 | 3471 | |
e35e4d28 | 3472 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
2ec600d6 | 3473 | if (err) |
4c476991 | 3474 | return err; |
2ec600d6 | 3475 | |
fd2120ca | 3476 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 3477 | if (!msg) |
4c476991 | 3478 | return -ENOMEM; |
2ec600d6 | 3479 | |
15e47304 | 3480 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4c476991 JB |
3481 | dev, dst, next_hop, &pinfo) < 0) { |
3482 | nlmsg_free(msg); | |
3483 | return -ENOBUFS; | |
3484 | } | |
3b85875a | 3485 | |
4c476991 | 3486 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
3487 | } |
3488 | ||
3489 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
3490 | { | |
4c476991 JB |
3491 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3492 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3493 | u8 *dst = NULL; |
3494 | u8 *next_hop = NULL; | |
3495 | ||
3496 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3497 | return -EINVAL; | |
3498 | ||
3499 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3500 | return -EINVAL; | |
3501 | ||
3502 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3503 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3504 | ||
4c476991 JB |
3505 | if (!rdev->ops->change_mpath) |
3506 | return -EOPNOTSUPP; | |
35a8efe1 | 3507 | |
4c476991 JB |
3508 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3509 | return -EOPNOTSUPP; | |
2ec600d6 | 3510 | |
e35e4d28 | 3511 | return rdev_change_mpath(rdev, dev, dst, next_hop); |
2ec600d6 | 3512 | } |
4c476991 | 3513 | |
2ec600d6 LCC |
3514 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
3515 | { | |
4c476991 JB |
3516 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3517 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3518 | u8 *dst = NULL; |
3519 | u8 *next_hop = NULL; | |
3520 | ||
3521 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3522 | return -EINVAL; | |
3523 | ||
3524 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3525 | return -EINVAL; | |
3526 | ||
3527 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3528 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3529 | ||
4c476991 JB |
3530 | if (!rdev->ops->add_mpath) |
3531 | return -EOPNOTSUPP; | |
35a8efe1 | 3532 | |
4c476991 JB |
3533 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3534 | return -EOPNOTSUPP; | |
2ec600d6 | 3535 | |
e35e4d28 | 3536 | return rdev_add_mpath(rdev, dev, dst, next_hop); |
2ec600d6 LCC |
3537 | } |
3538 | ||
3539 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
3540 | { | |
4c476991 JB |
3541 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3542 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3543 | u8 *dst = NULL; |
3544 | ||
3545 | if (info->attrs[NL80211_ATTR_MAC]) | |
3546 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3547 | ||
4c476991 JB |
3548 | if (!rdev->ops->del_mpath) |
3549 | return -EOPNOTSUPP; | |
3b85875a | 3550 | |
e35e4d28 | 3551 | return rdev_del_mpath(rdev, dev, dst); |
2ec600d6 LCC |
3552 | } |
3553 | ||
9f1ba906 JM |
3554 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
3555 | { | |
4c476991 JB |
3556 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3557 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
3558 | struct bss_parameters params; |
3559 | ||
3560 | memset(¶ms, 0, sizeof(params)); | |
3561 | /* default to not changing parameters */ | |
3562 | params.use_cts_prot = -1; | |
3563 | params.use_short_preamble = -1; | |
3564 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 3565 | params.ap_isolate = -1; |
50b12f59 | 3566 | params.ht_opmode = -1; |
9f1ba906 JM |
3567 | |
3568 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
3569 | params.use_cts_prot = | |
3570 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
3571 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
3572 | params.use_short_preamble = | |
3573 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
3574 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
3575 | params.use_short_slot_time = | |
3576 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
3577 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3578 | params.basic_rates = | |
3579 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3580 | params.basic_rates_len = | |
3581 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3582 | } | |
fd8aaaf3 FF |
3583 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
3584 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
3585 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
3586 | params.ht_opmode = | |
3587 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 3588 | |
4c476991 JB |
3589 | if (!rdev->ops->change_bss) |
3590 | return -EOPNOTSUPP; | |
9f1ba906 | 3591 | |
074ac8df | 3592 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
3593 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3594 | return -EOPNOTSUPP; | |
3b85875a | 3595 | |
e35e4d28 | 3596 | return rdev_change_bss(rdev, dev, ¶ms); |
9f1ba906 JM |
3597 | } |
3598 | ||
b54452b0 | 3599 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
3600 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
3601 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
3602 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
3603 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
3604 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
3605 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
3606 | }; | |
3607 | ||
3608 | static int parse_reg_rule(struct nlattr *tb[], | |
3609 | struct ieee80211_reg_rule *reg_rule) | |
3610 | { | |
3611 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
3612 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
3613 | ||
3614 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
3615 | return -EINVAL; | |
3616 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
3617 | return -EINVAL; | |
3618 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
3619 | return -EINVAL; | |
3620 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
3621 | return -EINVAL; | |
3622 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
3623 | return -EINVAL; | |
3624 | ||
3625 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
3626 | ||
3627 | freq_range->start_freq_khz = | |
3628 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
3629 | freq_range->end_freq_khz = | |
3630 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
3631 | freq_range->max_bandwidth_khz = | |
3632 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
3633 | ||
3634 | power_rule->max_eirp = | |
3635 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
3636 | ||
3637 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
3638 | power_rule->max_antenna_gain = | |
3639 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
3640 | ||
3641 | return 0; | |
3642 | } | |
3643 | ||
3644 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
3645 | { | |
3646 | int r; | |
3647 | char *data = NULL; | |
57b5ce07 | 3648 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
b2e1b302 | 3649 | |
80778f18 LR |
3650 | /* |
3651 | * You should only get this when cfg80211 hasn't yet initialized | |
3652 | * completely when built-in to the kernel right between the time | |
3653 | * window between nl80211_init() and regulatory_init(), if that is | |
3654 | * even possible. | |
3655 | */ | |
3656 | mutex_lock(&cfg80211_mutex); | |
3657 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
3658 | mutex_unlock(&cfg80211_mutex); |
3659 | return -EINPROGRESS; | |
80778f18 | 3660 | } |
fe33eb39 | 3661 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 3662 | |
fe33eb39 LR |
3663 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
3664 | return -EINVAL; | |
b2e1b302 LR |
3665 | |
3666 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3667 | ||
57b5ce07 LR |
3668 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
3669 | user_reg_hint_type = | |
3670 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
3671 | else | |
3672 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
3673 | ||
3674 | switch (user_reg_hint_type) { | |
3675 | case NL80211_USER_REG_HINT_USER: | |
3676 | case NL80211_USER_REG_HINT_CELL_BASE: | |
3677 | break; | |
3678 | default: | |
3679 | return -EINVAL; | |
3680 | } | |
3681 | ||
3682 | r = regulatory_hint_user(data, user_reg_hint_type); | |
fe33eb39 | 3683 | |
b2e1b302 LR |
3684 | return r; |
3685 | } | |
3686 | ||
24bdd9f4 | 3687 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 3688 | struct genl_info *info) |
93da9cc1 | 3689 | { |
4c476991 | 3690 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 3691 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
3692 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
3693 | struct mesh_config cur_params; | |
3694 | int err = 0; | |
93da9cc1 | 3695 | void *hdr; |
3696 | struct nlattr *pinfoattr; | |
3697 | struct sk_buff *msg; | |
3698 | ||
29cbe68c JB |
3699 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3700 | return -EOPNOTSUPP; | |
3701 | ||
24bdd9f4 | 3702 | if (!rdev->ops->get_mesh_config) |
4c476991 | 3703 | return -EOPNOTSUPP; |
f3f92586 | 3704 | |
29cbe68c JB |
3705 | wdev_lock(wdev); |
3706 | /* If not connected, get default parameters */ | |
3707 | if (!wdev->mesh_id_len) | |
3708 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
3709 | else | |
e35e4d28 | 3710 | err = rdev_get_mesh_config(rdev, dev, &cur_params); |
29cbe68c JB |
3711 | wdev_unlock(wdev); |
3712 | ||
93da9cc1 | 3713 | if (err) |
4c476991 | 3714 | return err; |
93da9cc1 | 3715 | |
3716 | /* Draw up a netlink message to send back */ | |
fd2120ca | 3717 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
3718 | if (!msg) |
3719 | return -ENOMEM; | |
15e47304 | 3720 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
24bdd9f4 | 3721 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 3722 | if (!hdr) |
efe1cf0c | 3723 | goto out; |
24bdd9f4 | 3724 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 3725 | if (!pinfoattr) |
3726 | goto nla_put_failure; | |
9360ffd1 DM |
3727 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3728 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
3729 | cur_params.dot11MeshRetryTimeout) || | |
3730 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
3731 | cur_params.dot11MeshConfirmTimeout) || | |
3732 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
3733 | cur_params.dot11MeshHoldingTimeout) || | |
3734 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
3735 | cur_params.dot11MeshMaxPeerLinks) || | |
3736 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
3737 | cur_params.dot11MeshMaxRetries) || | |
3738 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
3739 | cur_params.dot11MeshTTL) || | |
3740 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
3741 | cur_params.element_ttl) || | |
3742 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
3743 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
3744 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
3745 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
3746 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
3747 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
3748 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
3749 | cur_params.path_refresh_time) || | |
3750 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3751 | cur_params.min_discovery_timeout) || | |
3752 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3753 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
3754 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3755 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
3756 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3757 | cur_params.dot11MeshHWMPperrMinInterval) || | |
3758 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3759 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
3760 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
3761 | cur_params.dot11MeshHWMPRootMode) || | |
3762 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3763 | cur_params.dot11MeshHWMPRannInterval) || | |
3764 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3765 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
3766 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
3767 | cur_params.dot11MeshForwarding) || | |
3768 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
3769 | cur_params.rssi_threshold) || |
3770 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
ac1073a6 CYY |
3771 | cur_params.ht_opmode) || |
3772 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
3773 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
3774 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
3775 | cur_params.dot11MeshHWMProotInterval) || |
3776 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3777 | cur_params.dot11MeshHWMPconfirmationInterval)) | |
9360ffd1 | 3778 | goto nla_put_failure; |
93da9cc1 | 3779 | nla_nest_end(msg, pinfoattr); |
3780 | genlmsg_end(msg, hdr); | |
4c476991 | 3781 | return genlmsg_reply(msg, info); |
93da9cc1 | 3782 | |
3b85875a | 3783 | nla_put_failure: |
93da9cc1 | 3784 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 3785 | out: |
d080e275 | 3786 | nlmsg_free(msg); |
4c476991 | 3787 | return -ENOBUFS; |
93da9cc1 | 3788 | } |
3789 | ||
b54452b0 | 3790 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 3791 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
3792 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
3793 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
3794 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
3795 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
3796 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 3797 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 3798 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 3799 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 3800 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
3801 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
3802 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
3803 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
3804 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 3805 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 3806 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 3807 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 3808 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 3809 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 3810 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
a4f606ea CYY |
3811 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
3812 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
ac1073a6 CYY |
3813 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
3814 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
728b19e5 | 3815 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 3816 | }; |
3817 | ||
c80d545d JC |
3818 | static const struct nla_policy |
3819 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 3820 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
3821 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
3822 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 3823 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
581a8b0f | 3824 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
a4f606ea | 3825 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 3826 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
3827 | }; |
3828 | ||
24bdd9f4 | 3829 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
3830 | struct mesh_config *cfg, |
3831 | u32 *mask_out) | |
93da9cc1 | 3832 | { |
93da9cc1 | 3833 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 3834 | u32 mask = 0; |
93da9cc1 | 3835 | |
bd90fdcc JB |
3836 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ |
3837 | do {\ | |
3838 | if (table[attr_num]) {\ | |
3839 | cfg->param = nla_fn(table[attr_num]); \ | |
3840 | mask |= (1 << (attr_num - 1)); \ | |
3841 | } \ | |
3842 | } while (0);\ | |
3843 | ||
3844 | ||
24bdd9f4 | 3845 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 3846 | return -EINVAL; |
3847 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 3848 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 3849 | nl80211_meshconf_params_policy)) |
93da9cc1 | 3850 | return -EINVAL; |
3851 | ||
93da9cc1 | 3852 | /* This makes sure that there aren't more than 32 mesh config |
3853 | * parameters (otherwise our bitfield scheme would not work.) */ | |
3854 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
3855 | ||
3856 | /* Fill in the params struct */ | |
93da9cc1 | 3857 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, |
a4f606ea CYY |
3858 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
3859 | nla_get_u16); | |
93da9cc1 | 3860 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, |
a4f606ea CYY |
3861 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
3862 | nla_get_u16); | |
93da9cc1 | 3863 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, |
a4f606ea CYY |
3864 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
3865 | nla_get_u16); | |
93da9cc1 | 3866 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, |
a4f606ea CYY |
3867 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
3868 | nla_get_u16); | |
93da9cc1 | 3869 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, |
a4f606ea CYY |
3870 | mask, NL80211_MESHCONF_MAX_RETRIES, |
3871 | nla_get_u8); | |
93da9cc1 | 3872 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, |
a4f606ea | 3873 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
45904f21 | 3874 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, |
a4f606ea CYY |
3875 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
3876 | nla_get_u8); | |
93da9cc1 | 3877 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, |
a4f606ea CYY |
3878 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
3879 | nla_get_u8); | |
3880 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask, | |
3881 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
3882 | nla_get_u32); | |
93da9cc1 | 3883 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, |
a4f606ea CYY |
3884 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
3885 | nla_get_u8); | |
93da9cc1 | 3886 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, |
a4f606ea CYY |
3887 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
3888 | nla_get_u32); | |
93da9cc1 | 3889 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, |
a4f606ea CYY |
3890 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
3891 | nla_get_u16); | |
3892 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask, | |
3893 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3894 | nla_get_u32); | |
93da9cc1 | 3895 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
a4f606ea CYY |
3896 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, |
3897 | nla_get_u16); | |
dca7e943 | 3898 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
a4f606ea CYY |
3899 | mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
3900 | nla_get_u16); | |
93da9cc1 | 3901 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
a4f606ea CYY |
3902 | dot11MeshHWMPnetDiameterTraversalTime, mask, |
3903 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3904 | nla_get_u16); | |
3905 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask, | |
3906 | NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8); | |
3907 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask, | |
3908 | NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3909 | nla_get_u16); | |
63c5723b | 3910 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
a4f606ea CYY |
3911 | dot11MeshGateAnnouncementProtocol, mask, |
3912 | NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3913 | nla_get_u8); | |
94f90656 | 3914 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, |
a4f606ea CYY |
3915 | mask, NL80211_MESHCONF_FORWARDING, |
3916 | nla_get_u8); | |
55335137 | 3917 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, |
a4f606ea CYY |
3918 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
3919 | nla_get_u32); | |
70c33eaa | 3920 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, |
a4f606ea | 3921 | mask, NL80211_MESHCONF_HT_OPMODE, |
ac1073a6 CYY |
3922 | nla_get_u16); |
3923 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
3924 | mask, | |
3925 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
3926 | nla_get_u32); | |
3927 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, | |
3928 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
3929 | nla_get_u16); |
3930 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
3931 | dot11MeshHWMPconfirmationInterval, mask, | |
3932 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
a4f606ea | 3933 | nla_get_u16); |
bd90fdcc JB |
3934 | if (mask_out) |
3935 | *mask_out = mask; | |
c80d545d | 3936 | |
bd90fdcc JB |
3937 | return 0; |
3938 | ||
3939 | #undef FILL_IN_MESH_PARAM_IF_SET | |
3940 | } | |
3941 | ||
c80d545d JC |
3942 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
3943 | struct mesh_setup *setup) | |
3944 | { | |
3945 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
3946 | ||
3947 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
3948 | return -EINVAL; | |
3949 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
3950 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
3951 | nl80211_mesh_setup_params_policy)) | |
3952 | return -EINVAL; | |
3953 | ||
d299a1f2 JC |
3954 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
3955 | setup->sync_method = | |
3956 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
3957 | IEEE80211_SYNC_METHOD_VENDOR : | |
3958 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
3959 | ||
c80d545d JC |
3960 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
3961 | setup->path_sel_proto = | |
3962 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
3963 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
3964 | IEEE80211_PATH_PROTOCOL_HWMP; | |
3965 | ||
3966 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
3967 | setup->path_metric = | |
3968 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
3969 | IEEE80211_PATH_METRIC_VENDOR : | |
3970 | IEEE80211_PATH_METRIC_AIRTIME; | |
3971 | ||
581a8b0f JC |
3972 | |
3973 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 3974 | struct nlattr *ieattr = |
581a8b0f | 3975 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
3976 | if (!is_valid_ie_attr(ieattr)) |
3977 | return -EINVAL; | |
581a8b0f JC |
3978 | setup->ie = nla_data(ieattr); |
3979 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 3980 | } |
b130e5ce JC |
3981 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
3982 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
c80d545d JC |
3983 | |
3984 | return 0; | |
3985 | } | |
3986 | ||
24bdd9f4 | 3987 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 3988 | struct genl_info *info) |
bd90fdcc JB |
3989 | { |
3990 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3991 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 3992 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
3993 | struct mesh_config cfg; |
3994 | u32 mask; | |
3995 | int err; | |
3996 | ||
29cbe68c JB |
3997 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3998 | return -EOPNOTSUPP; | |
3999 | ||
24bdd9f4 | 4000 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
4001 | return -EOPNOTSUPP; |
4002 | ||
24bdd9f4 | 4003 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
4004 | if (err) |
4005 | return err; | |
4006 | ||
29cbe68c JB |
4007 | wdev_lock(wdev); |
4008 | if (!wdev->mesh_id_len) | |
4009 | err = -ENOLINK; | |
4010 | ||
4011 | if (!err) | |
e35e4d28 | 4012 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
29cbe68c JB |
4013 | |
4014 | wdev_unlock(wdev); | |
4015 | ||
4016 | return err; | |
93da9cc1 | 4017 | } |
4018 | ||
f130347c LR |
4019 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
4020 | { | |
4021 | struct sk_buff *msg; | |
4022 | void *hdr = NULL; | |
4023 | struct nlattr *nl_reg_rules; | |
4024 | unsigned int i; | |
4025 | int err = -EINVAL; | |
4026 | ||
a1794390 | 4027 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
4028 | |
4029 | if (!cfg80211_regdomain) | |
4030 | goto out; | |
4031 | ||
fd2120ca | 4032 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
4033 | if (!msg) { |
4034 | err = -ENOBUFS; | |
4035 | goto out; | |
4036 | } | |
4037 | ||
15e47304 | 4038 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
f130347c LR |
4039 | NL80211_CMD_GET_REG); |
4040 | if (!hdr) | |
efe1cf0c | 4041 | goto put_failure; |
f130347c | 4042 | |
9360ffd1 DM |
4043 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, |
4044 | cfg80211_regdomain->alpha2) || | |
4045 | (cfg80211_regdomain->dfs_region && | |
4046 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, | |
4047 | cfg80211_regdomain->dfs_region))) | |
4048 | goto nla_put_failure; | |
f130347c | 4049 | |
57b5ce07 LR |
4050 | if (reg_last_request_cell_base() && |
4051 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
4052 | NL80211_USER_REG_HINT_CELL_BASE)) | |
4053 | goto nla_put_failure; | |
4054 | ||
f130347c LR |
4055 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); |
4056 | if (!nl_reg_rules) | |
4057 | goto nla_put_failure; | |
4058 | ||
4059 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
4060 | struct nlattr *nl_reg_rule; | |
4061 | const struct ieee80211_reg_rule *reg_rule; | |
4062 | const struct ieee80211_freq_range *freq_range; | |
4063 | const struct ieee80211_power_rule *power_rule; | |
4064 | ||
4065 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
4066 | freq_range = ®_rule->freq_range; | |
4067 | power_rule = ®_rule->power_rule; | |
4068 | ||
4069 | nl_reg_rule = nla_nest_start(msg, i); | |
4070 | if (!nl_reg_rule) | |
4071 | goto nla_put_failure; | |
4072 | ||
9360ffd1 DM |
4073 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
4074 | reg_rule->flags) || | |
4075 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
4076 | freq_range->start_freq_khz) || | |
4077 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
4078 | freq_range->end_freq_khz) || | |
4079 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
4080 | freq_range->max_bandwidth_khz) || | |
4081 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
4082 | power_rule->max_antenna_gain) || | |
4083 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
4084 | power_rule->max_eirp)) | |
4085 | goto nla_put_failure; | |
f130347c LR |
4086 | |
4087 | nla_nest_end(msg, nl_reg_rule); | |
4088 | } | |
4089 | ||
4090 | nla_nest_end(msg, nl_reg_rules); | |
4091 | ||
4092 | genlmsg_end(msg, hdr); | |
134e6375 | 4093 | err = genlmsg_reply(msg, info); |
f130347c LR |
4094 | goto out; |
4095 | ||
4096 | nla_put_failure: | |
4097 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 4098 | put_failure: |
d080e275 | 4099 | nlmsg_free(msg); |
f130347c LR |
4100 | err = -EMSGSIZE; |
4101 | out: | |
a1794390 | 4102 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
4103 | return err; |
4104 | } | |
4105 | ||
b2e1b302 LR |
4106 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
4107 | { | |
4108 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
4109 | struct nlattr *nl_reg_rule; | |
4110 | char *alpha2 = NULL; | |
4111 | int rem_reg_rules = 0, r = 0; | |
4112 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
8b60b078 | 4113 | u8 dfs_region = 0; |
b2e1b302 LR |
4114 | struct ieee80211_regdomain *rd = NULL; |
4115 | ||
4116 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
4117 | return -EINVAL; | |
4118 | ||
4119 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
4120 | return -EINVAL; | |
4121 | ||
4122 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
4123 | ||
8b60b078 LR |
4124 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
4125 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
4126 | ||
b2e1b302 LR |
4127 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
4128 | rem_reg_rules) { | |
4129 | num_rules++; | |
4130 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 4131 | return -EINVAL; |
b2e1b302 LR |
4132 | } |
4133 | ||
61405e97 LR |
4134 | mutex_lock(&cfg80211_mutex); |
4135 | ||
d0e18f83 LR |
4136 | if (!reg_is_valid_request(alpha2)) { |
4137 | r = -EINVAL; | |
4138 | goto bad_reg; | |
4139 | } | |
b2e1b302 LR |
4140 | |
4141 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
4142 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
4143 | ||
4144 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
4145 | if (!rd) { |
4146 | r = -ENOMEM; | |
4147 | goto bad_reg; | |
4148 | } | |
b2e1b302 LR |
4149 | |
4150 | rd->n_reg_rules = num_rules; | |
4151 | rd->alpha2[0] = alpha2[0]; | |
4152 | rd->alpha2[1] = alpha2[1]; | |
4153 | ||
8b60b078 LR |
4154 | /* |
4155 | * Disable DFS master mode if the DFS region was | |
4156 | * not supported or known on this kernel. | |
4157 | */ | |
4158 | if (reg_supported_dfs_region(dfs_region)) | |
4159 | rd->dfs_region = dfs_region; | |
4160 | ||
b2e1b302 LR |
4161 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
4162 | rem_reg_rules) { | |
4163 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
4164 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
4165 | reg_rule_policy); | |
4166 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
4167 | if (r) | |
4168 | goto bad_reg; | |
4169 | ||
4170 | rule_idx++; | |
4171 | ||
d0e18f83 LR |
4172 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
4173 | r = -EINVAL; | |
b2e1b302 | 4174 | goto bad_reg; |
d0e18f83 | 4175 | } |
b2e1b302 LR |
4176 | } |
4177 | ||
4178 | BUG_ON(rule_idx != num_rules); | |
4179 | ||
b2e1b302 | 4180 | r = set_regdom(rd); |
61405e97 | 4181 | |
a1794390 | 4182 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 4183 | |
b2e1b302 LR |
4184 | return r; |
4185 | ||
d2372b31 | 4186 | bad_reg: |
61405e97 | 4187 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 4188 | kfree(rd); |
d0e18f83 | 4189 | return r; |
b2e1b302 LR |
4190 | } |
4191 | ||
83f5e2cf JB |
4192 | static int validate_scan_freqs(struct nlattr *freqs) |
4193 | { | |
4194 | struct nlattr *attr1, *attr2; | |
4195 | int n_channels = 0, tmp1, tmp2; | |
4196 | ||
4197 | nla_for_each_nested(attr1, freqs, tmp1) { | |
4198 | n_channels++; | |
4199 | /* | |
4200 | * Some hardware has a limited channel list for | |
4201 | * scanning, and it is pretty much nonsensical | |
4202 | * to scan for a channel twice, so disallow that | |
4203 | * and don't require drivers to check that the | |
4204 | * channel list they get isn't longer than what | |
4205 | * they can scan, as long as they can scan all | |
4206 | * the channels they registered at once. | |
4207 | */ | |
4208 | nla_for_each_nested(attr2, freqs, tmp2) | |
4209 | if (attr1 != attr2 && | |
4210 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
4211 | return 0; | |
4212 | } | |
4213 | ||
4214 | return n_channels; | |
4215 | } | |
4216 | ||
2a519311 JB |
4217 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
4218 | { | |
4c476991 | 4219 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fd014284 | 4220 | struct wireless_dev *wdev = info->user_ptr[1]; |
2a519311 | 4221 | struct cfg80211_scan_request *request; |
2a519311 JB |
4222 | struct nlattr *attr; |
4223 | struct wiphy *wiphy; | |
83f5e2cf | 4224 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 4225 | size_t ie_len; |
2a519311 | 4226 | |
f4a11bb0 JB |
4227 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4228 | return -EINVAL; | |
4229 | ||
79c97e97 | 4230 | wiphy = &rdev->wiphy; |
2a519311 | 4231 | |
4c476991 JB |
4232 | if (!rdev->ops->scan) |
4233 | return -EOPNOTSUPP; | |
2a519311 | 4234 | |
4c476991 JB |
4235 | if (rdev->scan_req) |
4236 | return -EBUSY; | |
2a519311 JB |
4237 | |
4238 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
4239 | n_channels = validate_scan_freqs( |
4240 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
4241 | if (!n_channels) |
4242 | return -EINVAL; | |
2a519311 | 4243 | } else { |
34850ab2 | 4244 | enum ieee80211_band band; |
83f5e2cf JB |
4245 | n_channels = 0; |
4246 | ||
2a519311 JB |
4247 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
4248 | if (wiphy->bands[band]) | |
4249 | n_channels += wiphy->bands[band]->n_channels; | |
4250 | } | |
4251 | ||
4252 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4253 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
4254 | n_ssids++; | |
4255 | ||
4c476991 JB |
4256 | if (n_ssids > wiphy->max_scan_ssids) |
4257 | return -EINVAL; | |
2a519311 | 4258 | |
70692ad2 JM |
4259 | if (info->attrs[NL80211_ATTR_IE]) |
4260 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4261 | else | |
4262 | ie_len = 0; | |
4263 | ||
4c476991 JB |
4264 | if (ie_len > wiphy->max_scan_ie_len) |
4265 | return -EINVAL; | |
18a83659 | 4266 | |
2a519311 | 4267 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
4268 | + sizeof(*request->ssids) * n_ssids |
4269 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 4270 | + ie_len, GFP_KERNEL); |
4c476991 JB |
4271 | if (!request) |
4272 | return -ENOMEM; | |
2a519311 | 4273 | |
2a519311 | 4274 | if (n_ssids) |
5ba63533 | 4275 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 4276 | request->n_ssids = n_ssids; |
70692ad2 JM |
4277 | if (ie_len) { |
4278 | if (request->ssids) | |
4279 | request->ie = (void *)(request->ssids + n_ssids); | |
4280 | else | |
4281 | request->ie = (void *)(request->channels + n_channels); | |
4282 | } | |
2a519311 | 4283 | |
584991dc | 4284 | i = 0; |
2a519311 JB |
4285 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
4286 | /* user specified, bail out if channel not found */ | |
2a519311 | 4287 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
4288 | struct ieee80211_channel *chan; |
4289 | ||
4290 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4291 | ||
4292 | if (!chan) { | |
2a519311 JB |
4293 | err = -EINVAL; |
4294 | goto out_free; | |
4295 | } | |
584991dc JB |
4296 | |
4297 | /* ignore disabled channels */ | |
4298 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4299 | continue; | |
4300 | ||
4301 | request->channels[i] = chan; | |
2a519311 JB |
4302 | i++; |
4303 | } | |
4304 | } else { | |
34850ab2 JB |
4305 | enum ieee80211_band band; |
4306 | ||
2a519311 | 4307 | /* all channels */ |
2a519311 JB |
4308 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
4309 | int j; | |
4310 | if (!wiphy->bands[band]) | |
4311 | continue; | |
4312 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
4313 | struct ieee80211_channel *chan; |
4314 | ||
4315 | chan = &wiphy->bands[band]->channels[j]; | |
4316 | ||
4317 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4318 | continue; | |
4319 | ||
4320 | request->channels[i] = chan; | |
2a519311 JB |
4321 | i++; |
4322 | } | |
4323 | } | |
4324 | } | |
4325 | ||
584991dc JB |
4326 | if (!i) { |
4327 | err = -EINVAL; | |
4328 | goto out_free; | |
4329 | } | |
4330 | ||
4331 | request->n_channels = i; | |
4332 | ||
2a519311 JB |
4333 | i = 0; |
4334 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4335 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
57a27e1d | 4336 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
4337 | err = -EINVAL; |
4338 | goto out_free; | |
4339 | } | |
57a27e1d | 4340 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 4341 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
4342 | i++; |
4343 | } | |
4344 | } | |
4345 | ||
70692ad2 JM |
4346 | if (info->attrs[NL80211_ATTR_IE]) { |
4347 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
4348 | memcpy((void *)request->ie, |
4349 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
4350 | request->ie_len); |
4351 | } | |
4352 | ||
34850ab2 | 4353 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
4354 | if (wiphy->bands[i]) |
4355 | request->rates[i] = | |
4356 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
4357 | |
4358 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
4359 | nla_for_each_nested(attr, | |
4360 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
4361 | tmp) { | |
4362 | enum ieee80211_band band = nla_type(attr); | |
4363 | ||
84404623 | 4364 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
4365 | err = -EINVAL; |
4366 | goto out_free; | |
4367 | } | |
4368 | err = ieee80211_get_ratemask(wiphy->bands[band], | |
4369 | nla_data(attr), | |
4370 | nla_len(attr), | |
4371 | &request->rates[band]); | |
4372 | if (err) | |
4373 | goto out_free; | |
4374 | } | |
4375 | } | |
4376 | ||
46856bbf | 4377 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
4378 | request->flags = nla_get_u32( |
4379 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
15d6030b SL |
4380 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
4381 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || | |
4382 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && | |
4383 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { | |
46856bbf SL |
4384 | err = -EOPNOTSUPP; |
4385 | goto out_free; | |
4386 | } | |
4387 | } | |
ed473771 | 4388 | |
e9f935e3 RM |
4389 | request->no_cck = |
4390 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
4391 | ||
fd014284 | 4392 | request->wdev = wdev; |
79c97e97 | 4393 | request->wiphy = &rdev->wiphy; |
15d6030b | 4394 | request->scan_start = jiffies; |
2a519311 | 4395 | |
79c97e97 | 4396 | rdev->scan_req = request; |
e35e4d28 | 4397 | err = rdev_scan(rdev, request); |
2a519311 | 4398 | |
463d0183 | 4399 | if (!err) { |
fd014284 JB |
4400 | nl80211_send_scan_start(rdev, wdev); |
4401 | if (wdev->netdev) | |
4402 | dev_hold(wdev->netdev); | |
4c476991 | 4403 | } else { |
2a519311 | 4404 | out_free: |
79c97e97 | 4405 | rdev->scan_req = NULL; |
2a519311 JB |
4406 | kfree(request); |
4407 | } | |
3b85875a | 4408 | |
2a519311 JB |
4409 | return err; |
4410 | } | |
4411 | ||
807f8a8c LC |
4412 | static int nl80211_start_sched_scan(struct sk_buff *skb, |
4413 | struct genl_info *info) | |
4414 | { | |
4415 | struct cfg80211_sched_scan_request *request; | |
4416 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4417 | struct net_device *dev = info->user_ptr[1]; | |
807f8a8c LC |
4418 | struct nlattr *attr; |
4419 | struct wiphy *wiphy; | |
a1f1c21c | 4420 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; |
bbe6ad6d | 4421 | u32 interval; |
807f8a8c LC |
4422 | enum ieee80211_band band; |
4423 | size_t ie_len; | |
a1f1c21c | 4424 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
807f8a8c LC |
4425 | |
4426 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4427 | !rdev->ops->sched_scan_start) | |
4428 | return -EOPNOTSUPP; | |
4429 | ||
4430 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4431 | return -EINVAL; | |
4432 | ||
bbe6ad6d LC |
4433 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
4434 | return -EINVAL; | |
4435 | ||
4436 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
4437 | if (interval == 0) | |
4438 | return -EINVAL; | |
4439 | ||
807f8a8c LC |
4440 | wiphy = &rdev->wiphy; |
4441 | ||
4442 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4443 | n_channels = validate_scan_freqs( | |
4444 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4445 | if (!n_channels) | |
4446 | return -EINVAL; | |
4447 | } else { | |
4448 | n_channels = 0; | |
4449 | ||
4450 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
4451 | if (wiphy->bands[band]) | |
4452 | n_channels += wiphy->bands[band]->n_channels; | |
4453 | } | |
4454 | ||
4455 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
4456 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4457 | tmp) | |
4458 | n_ssids++; | |
4459 | ||
93b6aa69 | 4460 | if (n_ssids > wiphy->max_sched_scan_ssids) |
807f8a8c LC |
4461 | return -EINVAL; |
4462 | ||
a1f1c21c LC |
4463 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) |
4464 | nla_for_each_nested(attr, | |
4465 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4466 | tmp) | |
4467 | n_match_sets++; | |
4468 | ||
4469 | if (n_match_sets > wiphy->max_match_sets) | |
4470 | return -EINVAL; | |
4471 | ||
807f8a8c LC |
4472 | if (info->attrs[NL80211_ATTR_IE]) |
4473 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4474 | else | |
4475 | ie_len = 0; | |
4476 | ||
5a865bad | 4477 | if (ie_len > wiphy->max_sched_scan_ie_len) |
807f8a8c LC |
4478 | return -EINVAL; |
4479 | ||
c10841ca LC |
4480 | mutex_lock(&rdev->sched_scan_mtx); |
4481 | ||
4482 | if (rdev->sched_scan_req) { | |
4483 | err = -EINPROGRESS; | |
4484 | goto out; | |
4485 | } | |
4486 | ||
807f8a8c | 4487 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 4488 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 4489 | + sizeof(*request->match_sets) * n_match_sets |
a2cd43c5 | 4490 | + sizeof(*request->channels) * n_channels |
807f8a8c | 4491 | + ie_len, GFP_KERNEL); |
c10841ca LC |
4492 | if (!request) { |
4493 | err = -ENOMEM; | |
4494 | goto out; | |
4495 | } | |
807f8a8c LC |
4496 | |
4497 | if (n_ssids) | |
4498 | request->ssids = (void *)&request->channels[n_channels]; | |
4499 | request->n_ssids = n_ssids; | |
4500 | if (ie_len) { | |
4501 | if (request->ssids) | |
4502 | request->ie = (void *)(request->ssids + n_ssids); | |
4503 | else | |
4504 | request->ie = (void *)(request->channels + n_channels); | |
4505 | } | |
4506 | ||
a1f1c21c LC |
4507 | if (n_match_sets) { |
4508 | if (request->ie) | |
4509 | request->match_sets = (void *)(request->ie + ie_len); | |
4510 | else if (request->ssids) | |
4511 | request->match_sets = | |
4512 | (void *)(request->ssids + n_ssids); | |
4513 | else | |
4514 | request->match_sets = | |
4515 | (void *)(request->channels + n_channels); | |
4516 | } | |
4517 | request->n_match_sets = n_match_sets; | |
4518 | ||
807f8a8c LC |
4519 | i = 0; |
4520 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
4521 | /* user specified, bail out if channel not found */ | |
4522 | nla_for_each_nested(attr, | |
4523 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
4524 | tmp) { | |
4525 | struct ieee80211_channel *chan; | |
4526 | ||
4527 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4528 | ||
4529 | if (!chan) { | |
4530 | err = -EINVAL; | |
4531 | goto out_free; | |
4532 | } | |
4533 | ||
4534 | /* ignore disabled channels */ | |
4535 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4536 | continue; | |
4537 | ||
4538 | request->channels[i] = chan; | |
4539 | i++; | |
4540 | } | |
4541 | } else { | |
4542 | /* all channels */ | |
4543 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4544 | int j; | |
4545 | if (!wiphy->bands[band]) | |
4546 | continue; | |
4547 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
4548 | struct ieee80211_channel *chan; | |
4549 | ||
4550 | chan = &wiphy->bands[band]->channels[j]; | |
4551 | ||
4552 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4553 | continue; | |
4554 | ||
4555 | request->channels[i] = chan; | |
4556 | i++; | |
4557 | } | |
4558 | } | |
4559 | } | |
4560 | ||
4561 | if (!i) { | |
4562 | err = -EINVAL; | |
4563 | goto out_free; | |
4564 | } | |
4565 | ||
4566 | request->n_channels = i; | |
4567 | ||
4568 | i = 0; | |
4569 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4570 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4571 | tmp) { | |
57a27e1d | 4572 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
4573 | err = -EINVAL; |
4574 | goto out_free; | |
4575 | } | |
57a27e1d | 4576 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
4577 | memcpy(request->ssids[i].ssid, nla_data(attr), |
4578 | nla_len(attr)); | |
807f8a8c LC |
4579 | i++; |
4580 | } | |
4581 | } | |
4582 | ||
a1f1c21c LC |
4583 | i = 0; |
4584 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
4585 | nla_for_each_nested(attr, | |
4586 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4587 | tmp) { | |
88e920b4 | 4588 | struct nlattr *ssid, *rssi; |
a1f1c21c LC |
4589 | |
4590 | nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
4591 | nla_data(attr), nla_len(attr), | |
4592 | nl80211_match_policy); | |
4a4ab0d7 | 4593 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
a1f1c21c LC |
4594 | if (ssid) { |
4595 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { | |
4596 | err = -EINVAL; | |
4597 | goto out_free; | |
4598 | } | |
4599 | memcpy(request->match_sets[i].ssid.ssid, | |
4600 | nla_data(ssid), nla_len(ssid)); | |
4601 | request->match_sets[i].ssid.ssid_len = | |
4602 | nla_len(ssid); | |
4603 | } | |
88e920b4 TP |
4604 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; |
4605 | if (rssi) | |
4606 | request->rssi_thold = nla_get_u32(rssi); | |
4607 | else | |
4608 | request->rssi_thold = | |
4609 | NL80211_SCAN_RSSI_THOLD_OFF; | |
a1f1c21c LC |
4610 | i++; |
4611 | } | |
4612 | } | |
4613 | ||
807f8a8c LC |
4614 | if (info->attrs[NL80211_ATTR_IE]) { |
4615 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4616 | memcpy((void *)request->ie, | |
4617 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
4618 | request->ie_len); | |
4619 | } | |
4620 | ||
46856bbf | 4621 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
4622 | request->flags = nla_get_u32( |
4623 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
15d6030b SL |
4624 | if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
4625 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) || | |
4626 | ((request->flags & NL80211_SCAN_FLAG_FLUSH) && | |
4627 | !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) { | |
46856bbf SL |
4628 | err = -EOPNOTSUPP; |
4629 | goto out_free; | |
4630 | } | |
4631 | } | |
ed473771 | 4632 | |
807f8a8c LC |
4633 | request->dev = dev; |
4634 | request->wiphy = &rdev->wiphy; | |
bbe6ad6d | 4635 | request->interval = interval; |
15d6030b | 4636 | request->scan_start = jiffies; |
807f8a8c | 4637 | |
e35e4d28 | 4638 | err = rdev_sched_scan_start(rdev, dev, request); |
807f8a8c LC |
4639 | if (!err) { |
4640 | rdev->sched_scan_req = request; | |
4641 | nl80211_send_sched_scan(rdev, dev, | |
4642 | NL80211_CMD_START_SCHED_SCAN); | |
4643 | goto out; | |
4644 | } | |
4645 | ||
4646 | out_free: | |
4647 | kfree(request); | |
4648 | out: | |
c10841ca | 4649 | mutex_unlock(&rdev->sched_scan_mtx); |
807f8a8c LC |
4650 | return err; |
4651 | } | |
4652 | ||
4653 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
4654 | struct genl_info *info) | |
4655 | { | |
4656 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
c10841ca | 4657 | int err; |
807f8a8c LC |
4658 | |
4659 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4660 | !rdev->ops->sched_scan_stop) | |
4661 | return -EOPNOTSUPP; | |
4662 | ||
c10841ca LC |
4663 | mutex_lock(&rdev->sched_scan_mtx); |
4664 | err = __cfg80211_stop_sched_scan(rdev, false); | |
4665 | mutex_unlock(&rdev->sched_scan_mtx); | |
4666 | ||
4667 | return err; | |
807f8a8c LC |
4668 | } |
4669 | ||
9720bb3a JB |
4670 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
4671 | u32 seq, int flags, | |
2a519311 | 4672 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
4673 | struct wireless_dev *wdev, |
4674 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 4675 | { |
48ab905d | 4676 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
4677 | void *hdr; |
4678 | struct nlattr *bss; | |
48ab905d JB |
4679 | |
4680 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 4681 | |
15e47304 | 4682 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
2a519311 JB |
4683 | NL80211_CMD_NEW_SCAN_RESULTS); |
4684 | if (!hdr) | |
4685 | return -1; | |
4686 | ||
9720bb3a JB |
4687 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
4688 | ||
9360ffd1 DM |
4689 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) || |
4690 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) | |
4691 | goto nla_put_failure; | |
2a519311 JB |
4692 | |
4693 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
4694 | if (!bss) | |
4695 | goto nla_put_failure; | |
9360ffd1 DM |
4696 | if ((!is_zero_ether_addr(res->bssid) && |
4697 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) || | |
4698 | (res->information_elements && res->len_information_elements && | |
4699 | nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
4700 | res->len_information_elements, | |
4701 | res->information_elements)) || | |
4702 | (res->beacon_ies && res->len_beacon_ies && | |
4703 | res->beacon_ies != res->information_elements && | |
4704 | nla_put(msg, NL80211_BSS_BEACON_IES, | |
4705 | res->len_beacon_ies, res->beacon_ies))) | |
4706 | goto nla_put_failure; | |
4707 | if (res->tsf && | |
4708 | nla_put_u64(msg, NL80211_BSS_TSF, res->tsf)) | |
4709 | goto nla_put_failure; | |
4710 | if (res->beacon_interval && | |
4711 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
4712 | goto nla_put_failure; | |
4713 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
4714 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
4715 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, | |
4716 | jiffies_to_msecs(jiffies - intbss->ts))) | |
4717 | goto nla_put_failure; | |
2a519311 | 4718 | |
77965c97 | 4719 | switch (rdev->wiphy.signal_type) { |
2a519311 | 4720 | case CFG80211_SIGNAL_TYPE_MBM: |
9360ffd1 DM |
4721 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
4722 | goto nla_put_failure; | |
2a519311 JB |
4723 | break; |
4724 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
9360ffd1 DM |
4725 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
4726 | goto nla_put_failure; | |
2a519311 JB |
4727 | break; |
4728 | default: | |
4729 | break; | |
4730 | } | |
4731 | ||
48ab905d | 4732 | switch (wdev->iftype) { |
074ac8df | 4733 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d | 4734 | case NL80211_IFTYPE_STATION: |
9360ffd1 DM |
4735 | if (intbss == wdev->current_bss && |
4736 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
4737 | NL80211_BSS_STATUS_ASSOCIATED)) | |
4738 | goto nla_put_failure; | |
48ab905d JB |
4739 | break; |
4740 | case NL80211_IFTYPE_ADHOC: | |
9360ffd1 DM |
4741 | if (intbss == wdev->current_bss && |
4742 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
4743 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
4744 | goto nla_put_failure; | |
48ab905d JB |
4745 | break; |
4746 | default: | |
4747 | break; | |
4748 | } | |
4749 | ||
2a519311 JB |
4750 | nla_nest_end(msg, bss); |
4751 | ||
4752 | return genlmsg_end(msg, hdr); | |
4753 | ||
4754 | nla_put_failure: | |
4755 | genlmsg_cancel(msg, hdr); | |
4756 | return -EMSGSIZE; | |
4757 | } | |
4758 | ||
4759 | static int nl80211_dump_scan(struct sk_buff *skb, | |
4760 | struct netlink_callback *cb) | |
4761 | { | |
48ab905d JB |
4762 | struct cfg80211_registered_device *rdev; |
4763 | struct net_device *dev; | |
2a519311 | 4764 | struct cfg80211_internal_bss *scan; |
48ab905d | 4765 | struct wireless_dev *wdev; |
2a519311 JB |
4766 | int start = cb->args[1], idx = 0; |
4767 | int err; | |
4768 | ||
67748893 JB |
4769 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
4770 | if (err) | |
4771 | return err; | |
2a519311 | 4772 | |
48ab905d | 4773 | wdev = dev->ieee80211_ptr; |
2a519311 | 4774 | |
48ab905d JB |
4775 | wdev_lock(wdev); |
4776 | spin_lock_bh(&rdev->bss_lock); | |
4777 | cfg80211_bss_expire(rdev); | |
4778 | ||
9720bb3a JB |
4779 | cb->seq = rdev->bss_generation; |
4780 | ||
48ab905d | 4781 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
4782 | if (++idx <= start) |
4783 | continue; | |
9720bb3a | 4784 | if (nl80211_send_bss(skb, cb, |
2a519311 | 4785 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 4786 | rdev, wdev, scan) < 0) { |
2a519311 | 4787 | idx--; |
67748893 | 4788 | break; |
2a519311 JB |
4789 | } |
4790 | } | |
4791 | ||
48ab905d JB |
4792 | spin_unlock_bh(&rdev->bss_lock); |
4793 | wdev_unlock(wdev); | |
2a519311 JB |
4794 | |
4795 | cb->args[1] = idx; | |
67748893 | 4796 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 4797 | |
67748893 | 4798 | return skb->len; |
2a519311 JB |
4799 | } |
4800 | ||
15e47304 | 4801 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
61fa713c HS |
4802 | int flags, struct net_device *dev, |
4803 | struct survey_info *survey) | |
4804 | { | |
4805 | void *hdr; | |
4806 | struct nlattr *infoattr; | |
4807 | ||
15e47304 | 4808 | hdr = nl80211hdr_put(msg, portid, seq, flags, |
61fa713c HS |
4809 | NL80211_CMD_NEW_SURVEY_RESULTS); |
4810 | if (!hdr) | |
4811 | return -ENOMEM; | |
4812 | ||
9360ffd1 DM |
4813 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
4814 | goto nla_put_failure; | |
61fa713c HS |
4815 | |
4816 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
4817 | if (!infoattr) | |
4818 | goto nla_put_failure; | |
4819 | ||
9360ffd1 DM |
4820 | if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, |
4821 | survey->channel->center_freq)) | |
4822 | goto nla_put_failure; | |
4823 | ||
4824 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
4825 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
4826 | goto nla_put_failure; | |
4827 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
4828 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
4829 | goto nla_put_failure; | |
4830 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) && | |
4831 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
4832 | survey->channel_time)) | |
4833 | goto nla_put_failure; | |
4834 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) && | |
4835 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
4836 | survey->channel_time_busy)) | |
4837 | goto nla_put_failure; | |
4838 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) && | |
4839 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
4840 | survey->channel_time_ext_busy)) | |
4841 | goto nla_put_failure; | |
4842 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) && | |
4843 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
4844 | survey->channel_time_rx)) | |
4845 | goto nla_put_failure; | |
4846 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) && | |
4847 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
4848 | survey->channel_time_tx)) | |
4849 | goto nla_put_failure; | |
61fa713c HS |
4850 | |
4851 | nla_nest_end(msg, infoattr); | |
4852 | ||
4853 | return genlmsg_end(msg, hdr); | |
4854 | ||
4855 | nla_put_failure: | |
4856 | genlmsg_cancel(msg, hdr); | |
4857 | return -EMSGSIZE; | |
4858 | } | |
4859 | ||
4860 | static int nl80211_dump_survey(struct sk_buff *skb, | |
4861 | struct netlink_callback *cb) | |
4862 | { | |
4863 | struct survey_info survey; | |
4864 | struct cfg80211_registered_device *dev; | |
4865 | struct net_device *netdev; | |
61fa713c HS |
4866 | int survey_idx = cb->args[1]; |
4867 | int res; | |
4868 | ||
67748893 JB |
4869 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
4870 | if (res) | |
4871 | return res; | |
61fa713c HS |
4872 | |
4873 | if (!dev->ops->dump_survey) { | |
4874 | res = -EOPNOTSUPP; | |
4875 | goto out_err; | |
4876 | } | |
4877 | ||
4878 | while (1) { | |
180cdc79 LR |
4879 | struct ieee80211_channel *chan; |
4880 | ||
e35e4d28 | 4881 | res = rdev_dump_survey(dev, netdev, survey_idx, &survey); |
61fa713c HS |
4882 | if (res == -ENOENT) |
4883 | break; | |
4884 | if (res) | |
4885 | goto out_err; | |
4886 | ||
180cdc79 LR |
4887 | /* Survey without a channel doesn't make sense */ |
4888 | if (!survey.channel) { | |
4889 | res = -EINVAL; | |
4890 | goto out; | |
4891 | } | |
4892 | ||
4893 | chan = ieee80211_get_channel(&dev->wiphy, | |
4894 | survey.channel->center_freq); | |
4895 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
4896 | survey_idx++; | |
4897 | continue; | |
4898 | } | |
4899 | ||
61fa713c | 4900 | if (nl80211_send_survey(skb, |
15e47304 | 4901 | NETLINK_CB(cb->skb).portid, |
61fa713c HS |
4902 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
4903 | netdev, | |
4904 | &survey) < 0) | |
4905 | goto out; | |
4906 | survey_idx++; | |
4907 | } | |
4908 | ||
4909 | out: | |
4910 | cb->args[1] = survey_idx; | |
4911 | res = skb->len; | |
4912 | out_err: | |
67748893 | 4913 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
4914 | return res; |
4915 | } | |
4916 | ||
b23aa676 SO |
4917 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
4918 | { | |
4919 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
4920 | NL80211_WPA_VERSION_2)); | |
4921 | } | |
4922 | ||
636a5d36 JM |
4923 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
4924 | { | |
4c476991 JB |
4925 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4926 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4927 | struct ieee80211_channel *chan; |
e39e5b5e JM |
4928 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
4929 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
19957bb3 | 4930 | enum nl80211_auth_type auth_type; |
fffd0934 | 4931 | struct key_parse key; |
d5cdfacb | 4932 | bool local_state_change; |
636a5d36 | 4933 | |
f4a11bb0 JB |
4934 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4935 | return -EINVAL; | |
4936 | ||
4937 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4938 | return -EINVAL; | |
4939 | ||
1778092e JM |
4940 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
4941 | return -EINVAL; | |
4942 | ||
19957bb3 JB |
4943 | if (!info->attrs[NL80211_ATTR_SSID]) |
4944 | return -EINVAL; | |
4945 | ||
4946 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4947 | return -EINVAL; | |
4948 | ||
fffd0934 JB |
4949 | err = nl80211_parse_key(info, &key); |
4950 | if (err) | |
4951 | return err; | |
4952 | ||
4953 | if (key.idx >= 0) { | |
e31b8213 JB |
4954 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
4955 | return -EINVAL; | |
fffd0934 JB |
4956 | if (!key.p.key || !key.p.key_len) |
4957 | return -EINVAL; | |
4958 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
4959 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
4960 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
4961 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
4962 | return -EINVAL; | |
4963 | if (key.idx > 4) | |
4964 | return -EINVAL; | |
4965 | } else { | |
4966 | key.p.key_len = 0; | |
4967 | key.p.key = NULL; | |
4968 | } | |
4969 | ||
afea0b7a JB |
4970 | if (key.idx >= 0) { |
4971 | int i; | |
4972 | bool ok = false; | |
4973 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
4974 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
4975 | ok = true; | |
4976 | break; | |
4977 | } | |
4978 | } | |
4c476991 JB |
4979 | if (!ok) |
4980 | return -EINVAL; | |
afea0b7a JB |
4981 | } |
4982 | ||
4c476991 JB |
4983 | if (!rdev->ops->auth) |
4984 | return -EOPNOTSUPP; | |
636a5d36 | 4985 | |
074ac8df | 4986 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4987 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4988 | return -EOPNOTSUPP; | |
eec60b03 | 4989 | |
19957bb3 | 4990 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 4991 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 4992 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
4993 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
4994 | return -EINVAL; | |
636a5d36 | 4995 | |
19957bb3 JB |
4996 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4997 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
4998 | |
4999 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5000 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5001 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5002 | } |
5003 | ||
19957bb3 | 5004 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
e39e5b5e | 5005 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
4c476991 | 5006 | return -EINVAL; |
636a5d36 | 5007 | |
e39e5b5e JM |
5008 | if (auth_type == NL80211_AUTHTYPE_SAE && |
5009 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
5010 | return -EINVAL; | |
5011 | ||
5012 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
5013 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
5014 | return -EINVAL; | |
5015 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5016 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5017 | /* need to include at least Auth Transaction and Status Code */ | |
5018 | if (sae_data_len < 4) | |
5019 | return -EINVAL; | |
5020 | } | |
5021 | ||
d5cdfacb JM |
5022 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5023 | ||
95de817b JB |
5024 | /* |
5025 | * Since we no longer track auth state, ignore | |
5026 | * requests to only change local state. | |
5027 | */ | |
5028 | if (local_state_change) | |
5029 | return 0; | |
5030 | ||
4c476991 JB |
5031 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
5032 | ssid, ssid_len, ie, ie_len, | |
e39e5b5e JM |
5033 | key.p.key, key.p.key_len, key.idx, |
5034 | sae_data, sae_data_len); | |
636a5d36 JM |
5035 | } |
5036 | ||
c0692b8f JB |
5037 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
5038 | struct genl_info *info, | |
3dc27d25 JB |
5039 | struct cfg80211_crypto_settings *settings, |
5040 | int cipher_limit) | |
b23aa676 | 5041 | { |
c0b2bbd8 JB |
5042 | memset(settings, 0, sizeof(*settings)); |
5043 | ||
b23aa676 SO |
5044 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
5045 | ||
c0692b8f JB |
5046 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
5047 | u16 proto; | |
5048 | proto = nla_get_u16( | |
5049 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
5050 | settings->control_port_ethertype = cpu_to_be16(proto); | |
5051 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
5052 | proto != ETH_P_PAE) | |
5053 | return -EINVAL; | |
5054 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
5055 | settings->control_port_no_encrypt = true; | |
5056 | } else | |
5057 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
5058 | ||
b23aa676 SO |
5059 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
5060 | void *data; | |
5061 | int len, i; | |
5062 | ||
5063 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5064 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5065 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
5066 | ||
5067 | if (len % sizeof(u32)) | |
5068 | return -EINVAL; | |
5069 | ||
3dc27d25 | 5070 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
5071 | return -EINVAL; |
5072 | ||
5073 | memcpy(settings->ciphers_pairwise, data, len); | |
5074 | ||
5075 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
5076 | if (!cfg80211_supported_cipher_suite( |
5077 | &rdev->wiphy, | |
b23aa676 SO |
5078 | settings->ciphers_pairwise[i])) |
5079 | return -EINVAL; | |
5080 | } | |
5081 | ||
5082 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
5083 | settings->cipher_group = | |
5084 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
5085 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
5086 | settings->cipher_group)) | |
b23aa676 SO |
5087 | return -EINVAL; |
5088 | } | |
5089 | ||
5090 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
5091 | settings->wpa_versions = | |
5092 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
5093 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
5094 | return -EINVAL; | |
5095 | } | |
5096 | ||
5097 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
5098 | void *data; | |
6d30240e | 5099 | int len; |
b23aa676 SO |
5100 | |
5101 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5102 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5103 | settings->n_akm_suites = len / sizeof(u32); | |
5104 | ||
5105 | if (len % sizeof(u32)) | |
5106 | return -EINVAL; | |
5107 | ||
1b9ca027 JM |
5108 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
5109 | return -EINVAL; | |
5110 | ||
b23aa676 | 5111 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
5112 | } |
5113 | ||
5114 | return 0; | |
5115 | } | |
5116 | ||
636a5d36 JM |
5117 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
5118 | { | |
4c476991 JB |
5119 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5120 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5121 | struct cfg80211_crypto_settings crypto; |
f444de05 | 5122 | struct ieee80211_channel *chan; |
3e5d7649 | 5123 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
5124 | int err, ssid_len, ie_len = 0; |
5125 | bool use_mfp = false; | |
7e7c8926 BG |
5126 | u32 flags = 0; |
5127 | struct ieee80211_ht_cap *ht_capa = NULL; | |
5128 | struct ieee80211_ht_cap *ht_capa_mask = NULL; | |
636a5d36 | 5129 | |
f4a11bb0 JB |
5130 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5131 | return -EINVAL; | |
5132 | ||
5133 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
5134 | !info->attrs[NL80211_ATTR_SSID] || |
5135 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
5136 | return -EINVAL; |
5137 | ||
4c476991 JB |
5138 | if (!rdev->ops->assoc) |
5139 | return -EOPNOTSUPP; | |
636a5d36 | 5140 | |
074ac8df | 5141 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5142 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5143 | return -EOPNOTSUPP; | |
eec60b03 | 5144 | |
19957bb3 | 5145 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5146 | |
19957bb3 JB |
5147 | chan = ieee80211_get_channel(&rdev->wiphy, |
5148 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
5149 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
5150 | return -EINVAL; | |
636a5d36 | 5151 | |
19957bb3 JB |
5152 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5153 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
5154 | |
5155 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5156 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5157 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5158 | } |
5159 | ||
dc6382ce | 5160 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 5161 | enum nl80211_mfp mfp = |
dc6382ce | 5162 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 5163 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 5164 | use_mfp = true; |
4c476991 JB |
5165 | else if (mfp != NL80211_MFP_NO) |
5166 | return -EINVAL; | |
dc6382ce JM |
5167 | } |
5168 | ||
3e5d7649 JB |
5169 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
5170 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
5171 | ||
7e7c8926 BG |
5172 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5173 | flags |= ASSOC_REQ_DISABLE_HT; | |
5174 | ||
5175 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5176 | ht_capa_mask = | |
5177 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
5178 | ||
5179 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5180 | if (!ht_capa_mask) | |
5181 | return -EINVAL; | |
5182 | ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5183 | } | |
5184 | ||
c0692b8f | 5185 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 5186 | if (!err) |
3e5d7649 JB |
5187 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
5188 | ssid, ssid_len, ie, ie_len, use_mfp, | |
7e7c8926 BG |
5189 | &crypto, flags, ht_capa, |
5190 | ht_capa_mask); | |
636a5d36 | 5191 | |
636a5d36 JM |
5192 | return err; |
5193 | } | |
5194 | ||
5195 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
5196 | { | |
4c476991 JB |
5197 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5198 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5199 | const u8 *ie = NULL, *bssid; |
4c476991 | 5200 | int ie_len = 0; |
19957bb3 | 5201 | u16 reason_code; |
d5cdfacb | 5202 | bool local_state_change; |
636a5d36 | 5203 | |
f4a11bb0 JB |
5204 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5205 | return -EINVAL; | |
5206 | ||
5207 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5208 | return -EINVAL; | |
5209 | ||
5210 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5211 | return -EINVAL; | |
5212 | ||
4c476991 JB |
5213 | if (!rdev->ops->deauth) |
5214 | return -EOPNOTSUPP; | |
636a5d36 | 5215 | |
074ac8df | 5216 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5217 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5218 | return -EOPNOTSUPP; | |
eec60b03 | 5219 | |
19957bb3 | 5220 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5221 | |
19957bb3 JB |
5222 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
5223 | if (reason_code == 0) { | |
f4a11bb0 | 5224 | /* Reason Code 0 is reserved */ |
4c476991 | 5225 | return -EINVAL; |
255e737e | 5226 | } |
636a5d36 JM |
5227 | |
5228 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5229 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5230 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5231 | } |
5232 | ||
d5cdfacb JM |
5233 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5234 | ||
4c476991 JB |
5235 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
5236 | local_state_change); | |
636a5d36 JM |
5237 | } |
5238 | ||
5239 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
5240 | { | |
4c476991 JB |
5241 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5242 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5243 | const u8 *ie = NULL, *bssid; |
4c476991 | 5244 | int ie_len = 0; |
19957bb3 | 5245 | u16 reason_code; |
d5cdfacb | 5246 | bool local_state_change; |
636a5d36 | 5247 | |
f4a11bb0 JB |
5248 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5249 | return -EINVAL; | |
5250 | ||
5251 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5252 | return -EINVAL; | |
5253 | ||
5254 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5255 | return -EINVAL; | |
5256 | ||
4c476991 JB |
5257 | if (!rdev->ops->disassoc) |
5258 | return -EOPNOTSUPP; | |
636a5d36 | 5259 | |
074ac8df | 5260 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5261 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5262 | return -EOPNOTSUPP; | |
eec60b03 | 5263 | |
19957bb3 | 5264 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5265 | |
19957bb3 JB |
5266 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
5267 | if (reason_code == 0) { | |
f4a11bb0 | 5268 | /* Reason Code 0 is reserved */ |
4c476991 | 5269 | return -EINVAL; |
255e737e | 5270 | } |
636a5d36 JM |
5271 | |
5272 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5273 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5274 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5275 | } |
5276 | ||
d5cdfacb JM |
5277 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5278 | ||
4c476991 JB |
5279 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
5280 | local_state_change); | |
636a5d36 JM |
5281 | } |
5282 | ||
dd5b4cc7 FF |
5283 | static bool |
5284 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
5285 | int mcast_rate[IEEE80211_NUM_BANDS], | |
5286 | int rateval) | |
5287 | { | |
5288 | struct wiphy *wiphy = &rdev->wiphy; | |
5289 | bool found = false; | |
5290 | int band, i; | |
5291 | ||
5292 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
5293 | struct ieee80211_supported_band *sband; | |
5294 | ||
5295 | sband = wiphy->bands[band]; | |
5296 | if (!sband) | |
5297 | continue; | |
5298 | ||
5299 | for (i = 0; i < sband->n_bitrates; i++) { | |
5300 | if (sband->bitrates[i].bitrate == rateval) { | |
5301 | mcast_rate[band] = i + 1; | |
5302 | found = true; | |
5303 | break; | |
5304 | } | |
5305 | } | |
5306 | } | |
5307 | ||
5308 | return found; | |
5309 | } | |
5310 | ||
04a773ad JB |
5311 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
5312 | { | |
4c476991 JB |
5313 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5314 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
5315 | struct cfg80211_ibss_params ibss; |
5316 | struct wiphy *wiphy; | |
fffd0934 | 5317 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
5318 | int err; |
5319 | ||
8e30bc55 JB |
5320 | memset(&ibss, 0, sizeof(ibss)); |
5321 | ||
04a773ad JB |
5322 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5323 | return -EINVAL; | |
5324 | ||
5325 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5326 | !info->attrs[NL80211_ATTR_SSID] || | |
5327 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5328 | return -EINVAL; | |
5329 | ||
8e30bc55 JB |
5330 | ibss.beacon_interval = 100; |
5331 | ||
5332 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
5333 | ibss.beacon_interval = | |
5334 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
5335 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
5336 | return -EINVAL; | |
5337 | } | |
5338 | ||
4c476991 JB |
5339 | if (!rdev->ops->join_ibss) |
5340 | return -EOPNOTSUPP; | |
04a773ad | 5341 | |
4c476991 JB |
5342 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5343 | return -EOPNOTSUPP; | |
04a773ad | 5344 | |
79c97e97 | 5345 | wiphy = &rdev->wiphy; |
04a773ad | 5346 | |
39193498 | 5347 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 5348 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
5349 | |
5350 | if (!is_valid_ether_addr(ibss.bssid)) | |
5351 | return -EINVAL; | |
5352 | } | |
04a773ad JB |
5353 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5354 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5355 | ||
5356 | if (info->attrs[NL80211_ATTR_IE]) { | |
5357 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5358 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5359 | } | |
5360 | ||
54858ee5 AS |
5361 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
5362 | enum nl80211_channel_type channel_type; | |
5363 | ||
cd6c6598 | 5364 | if (!nl80211_valid_channel_type(info, &channel_type)) |
54858ee5 AS |
5365 | return -EINVAL; |
5366 | ||
5367 | if (channel_type != NL80211_CHAN_NO_HT && | |
5368 | !(wiphy->features & NL80211_FEATURE_HT_IBSS)) | |
5369 | return -EINVAL; | |
5370 | ||
5371 | ibss.channel_type = channel_type; | |
5372 | } else { | |
5373 | ibss.channel_type = NL80211_CHAN_NO_HT; | |
5374 | } | |
5375 | ||
5376 | ibss.channel = rdev_freq_to_chan(rdev, | |
5377 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
5378 | ibss.channel_type); | |
04a773ad JB |
5379 | if (!ibss.channel || |
5380 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
5381 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
5382 | return -EINVAL; | |
04a773ad | 5383 | |
54858ee5 AS |
5384 | /* Both channels should be able to initiate communication */ |
5385 | if ((ibss.channel_type == NL80211_CHAN_HT40PLUS || | |
5386 | ibss.channel_type == NL80211_CHAN_HT40MINUS) && | |
5387 | !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel, | |
5388 | ibss.channel_type)) | |
5389 | return -EINVAL; | |
5390 | ||
04a773ad | 5391 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
5392 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
5393 | ||
fbd2c8dc TP |
5394 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
5395 | u8 *rates = | |
5396 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5397 | int n_rates = | |
5398 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5399 | struct ieee80211_supported_band *sband = | |
5400 | wiphy->bands[ibss.channel->band]; | |
fbd2c8dc | 5401 | |
34850ab2 JB |
5402 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
5403 | &ibss.basic_rates); | |
5404 | if (err) | |
5405 | return err; | |
fbd2c8dc | 5406 | } |
dd5b4cc7 FF |
5407 | |
5408 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
5409 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
5410 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
5411 | return -EINVAL; | |
fbd2c8dc | 5412 | |
4c476991 | 5413 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
de7044ee SM |
5414 | bool no_ht = false; |
5415 | ||
4c476991 | 5416 | connkeys = nl80211_parse_connkeys(rdev, |
de7044ee SM |
5417 | info->attrs[NL80211_ATTR_KEYS], |
5418 | &no_ht); | |
4c476991 JB |
5419 | if (IS_ERR(connkeys)) |
5420 | return PTR_ERR(connkeys); | |
de7044ee SM |
5421 | |
5422 | if ((ibss.channel_type != NL80211_CHAN_NO_HT) && no_ht) { | |
5423 | kfree(connkeys); | |
5424 | return -EINVAL; | |
5425 | } | |
4c476991 | 5426 | } |
04a773ad | 5427 | |
267335d6 AQ |
5428 | ibss.control_port = |
5429 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
5430 | ||
4c476991 | 5431 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
5432 | if (err) |
5433 | kfree(connkeys); | |
04a773ad JB |
5434 | return err; |
5435 | } | |
5436 | ||
5437 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
5438 | { | |
4c476991 JB |
5439 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5440 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 5441 | |
4c476991 JB |
5442 | if (!rdev->ops->leave_ibss) |
5443 | return -EOPNOTSUPP; | |
04a773ad | 5444 | |
4c476991 JB |
5445 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5446 | return -EOPNOTSUPP; | |
04a773ad | 5447 | |
4c476991 | 5448 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
5449 | } |
5450 | ||
aff89a9b JB |
5451 | #ifdef CONFIG_NL80211_TESTMODE |
5452 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
5453 | .name = "testmode", | |
5454 | }; | |
5455 | ||
5456 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
5457 | { | |
4c476991 | 5458 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
5459 | int err; |
5460 | ||
5461 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
5462 | return -EINVAL; | |
5463 | ||
aff89a9b JB |
5464 | err = -EOPNOTSUPP; |
5465 | if (rdev->ops->testmode_cmd) { | |
5466 | rdev->testmode_info = info; | |
e35e4d28 | 5467 | err = rdev_testmode_cmd(rdev, |
aff89a9b JB |
5468 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
5469 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
5470 | rdev->testmode_info = NULL; | |
5471 | } | |
5472 | ||
aff89a9b JB |
5473 | return err; |
5474 | } | |
5475 | ||
71063f0e WYG |
5476 | static int nl80211_testmode_dump(struct sk_buff *skb, |
5477 | struct netlink_callback *cb) | |
5478 | { | |
00918d33 | 5479 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
5480 | int err; |
5481 | long phy_idx; | |
5482 | void *data = NULL; | |
5483 | int data_len = 0; | |
5484 | ||
5485 | if (cb->args[0]) { | |
5486 | /* | |
5487 | * 0 is a valid index, but not valid for args[0], | |
5488 | * so we need to offset by 1. | |
5489 | */ | |
5490 | phy_idx = cb->args[0] - 1; | |
5491 | } else { | |
5492 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
5493 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
5494 | nl80211_policy); | |
5495 | if (err) | |
5496 | return err; | |
00918d33 | 5497 | |
2bd7e35d JB |
5498 | mutex_lock(&cfg80211_mutex); |
5499 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
5500 | nl80211_fam.attrbuf); | |
5501 | if (IS_ERR(rdev)) { | |
5502 | mutex_unlock(&cfg80211_mutex); | |
5503 | return PTR_ERR(rdev); | |
00918d33 | 5504 | } |
2bd7e35d JB |
5505 | phy_idx = rdev->wiphy_idx; |
5506 | rdev = NULL; | |
5507 | mutex_unlock(&cfg80211_mutex); | |
5508 | ||
71063f0e WYG |
5509 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
5510 | cb->args[1] = | |
5511 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
5512 | } | |
5513 | ||
5514 | if (cb->args[1]) { | |
5515 | data = nla_data((void *)cb->args[1]); | |
5516 | data_len = nla_len((void *)cb->args[1]); | |
5517 | } | |
5518 | ||
5519 | mutex_lock(&cfg80211_mutex); | |
00918d33 JB |
5520 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
5521 | if (!rdev) { | |
71063f0e WYG |
5522 | mutex_unlock(&cfg80211_mutex); |
5523 | return -ENOENT; | |
5524 | } | |
00918d33 | 5525 | cfg80211_lock_rdev(rdev); |
71063f0e WYG |
5526 | mutex_unlock(&cfg80211_mutex); |
5527 | ||
00918d33 | 5528 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
5529 | err = -EOPNOTSUPP; |
5530 | goto out_err; | |
5531 | } | |
5532 | ||
5533 | while (1) { | |
15e47304 | 5534 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
71063f0e WYG |
5535 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
5536 | NL80211_CMD_TESTMODE); | |
5537 | struct nlattr *tmdata; | |
5538 | ||
9360ffd1 | 5539 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
5540 | genlmsg_cancel(skb, hdr); |
5541 | break; | |
5542 | } | |
5543 | ||
5544 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5545 | if (!tmdata) { | |
5546 | genlmsg_cancel(skb, hdr); | |
5547 | break; | |
5548 | } | |
e35e4d28 | 5549 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
71063f0e WYG |
5550 | nla_nest_end(skb, tmdata); |
5551 | ||
5552 | if (err == -ENOBUFS || err == -ENOENT) { | |
5553 | genlmsg_cancel(skb, hdr); | |
5554 | break; | |
5555 | } else if (err) { | |
5556 | genlmsg_cancel(skb, hdr); | |
5557 | goto out_err; | |
5558 | } | |
5559 | ||
5560 | genlmsg_end(skb, hdr); | |
5561 | } | |
5562 | ||
5563 | err = skb->len; | |
5564 | /* see above */ | |
5565 | cb->args[0] = phy_idx + 1; | |
5566 | out_err: | |
00918d33 | 5567 | cfg80211_unlock_rdev(rdev); |
71063f0e WYG |
5568 | return err; |
5569 | } | |
5570 | ||
aff89a9b JB |
5571 | static struct sk_buff * |
5572 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
15e47304 | 5573 | int approxlen, u32 portid, u32 seq, gfp_t gfp) |
aff89a9b JB |
5574 | { |
5575 | struct sk_buff *skb; | |
5576 | void *hdr; | |
5577 | struct nlattr *data; | |
5578 | ||
5579 | skb = nlmsg_new(approxlen + 100, gfp); | |
5580 | if (!skb) | |
5581 | return NULL; | |
5582 | ||
15e47304 | 5583 | hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE); |
aff89a9b JB |
5584 | if (!hdr) { |
5585 | kfree_skb(skb); | |
5586 | return NULL; | |
5587 | } | |
5588 | ||
9360ffd1 DM |
5589 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
5590 | goto nla_put_failure; | |
aff89a9b JB |
5591 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); |
5592 | ||
5593 | ((void **)skb->cb)[0] = rdev; | |
5594 | ((void **)skb->cb)[1] = hdr; | |
5595 | ((void **)skb->cb)[2] = data; | |
5596 | ||
5597 | return skb; | |
5598 | ||
5599 | nla_put_failure: | |
5600 | kfree_skb(skb); | |
5601 | return NULL; | |
5602 | } | |
5603 | ||
5604 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
5605 | int approxlen) | |
5606 | { | |
5607 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5608 | ||
5609 | if (WARN_ON(!rdev->testmode_info)) | |
5610 | return NULL; | |
5611 | ||
5612 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
15e47304 | 5613 | rdev->testmode_info->snd_portid, |
aff89a9b JB |
5614 | rdev->testmode_info->snd_seq, |
5615 | GFP_KERNEL); | |
5616 | } | |
5617 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
5618 | ||
5619 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
5620 | { | |
5621 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
5622 | void *hdr = ((void **)skb->cb)[1]; | |
5623 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5624 | ||
5625 | if (WARN_ON(!rdev->testmode_info)) { | |
5626 | kfree_skb(skb); | |
5627 | return -EINVAL; | |
5628 | } | |
5629 | ||
5630 | nla_nest_end(skb, data); | |
5631 | genlmsg_end(skb, hdr); | |
5632 | return genlmsg_reply(skb, rdev->testmode_info); | |
5633 | } | |
5634 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
5635 | ||
5636 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
5637 | int approxlen, gfp_t gfp) | |
5638 | { | |
5639 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5640 | ||
5641 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
5642 | } | |
5643 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
5644 | ||
5645 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
5646 | { | |
5647 | void *hdr = ((void **)skb->cb)[1]; | |
5648 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5649 | ||
5650 | nla_nest_end(skb, data); | |
5651 | genlmsg_end(skb, hdr); | |
5652 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
5653 | } | |
5654 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
5655 | #endif | |
5656 | ||
b23aa676 SO |
5657 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
5658 | { | |
4c476991 JB |
5659 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5660 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5661 | struct cfg80211_connect_params connect; |
5662 | struct wiphy *wiphy; | |
fffd0934 | 5663 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
5664 | int err; |
5665 | ||
5666 | memset(&connect, 0, sizeof(connect)); | |
5667 | ||
5668 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5669 | return -EINVAL; | |
5670 | ||
5671 | if (!info->attrs[NL80211_ATTR_SSID] || | |
5672 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5673 | return -EINVAL; | |
5674 | ||
5675 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
5676 | connect.auth_type = | |
5677 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
5678 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
5679 | NL80211_CMD_CONNECT)) | |
b23aa676 SO |
5680 | return -EINVAL; |
5681 | } else | |
5682 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
5683 | ||
5684 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
5685 | ||
c0692b8f | 5686 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 5687 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
5688 | if (err) |
5689 | return err; | |
b23aa676 | 5690 | |
074ac8df | 5691 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5692 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5693 | return -EOPNOTSUPP; | |
b23aa676 | 5694 | |
79c97e97 | 5695 | wiphy = &rdev->wiphy; |
b23aa676 | 5696 | |
4486ea98 BS |
5697 | connect.bg_scan_period = -1; |
5698 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
5699 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
5700 | connect.bg_scan_period = | |
5701 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
5702 | } | |
5703 | ||
b23aa676 SO |
5704 | if (info->attrs[NL80211_ATTR_MAC]) |
5705 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5706 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5707 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5708 | ||
5709 | if (info->attrs[NL80211_ATTR_IE]) { | |
5710 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5711 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5712 | } | |
5713 | ||
5714 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
5715 | connect.channel = | |
5716 | ieee80211_get_channel(wiphy, | |
5717 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
5718 | if (!connect.channel || | |
4c476991 JB |
5719 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
5720 | return -EINVAL; | |
b23aa676 SO |
5721 | } |
5722 | ||
fffd0934 JB |
5723 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
5724 | connkeys = nl80211_parse_connkeys(rdev, | |
de7044ee | 5725 | info->attrs[NL80211_ATTR_KEYS], NULL); |
4c476991 JB |
5726 | if (IS_ERR(connkeys)) |
5727 | return PTR_ERR(connkeys); | |
fffd0934 JB |
5728 | } |
5729 | ||
7e7c8926 BG |
5730 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5731 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
5732 | ||
5733 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5734 | memcpy(&connect.ht_capa_mask, | |
5735 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
5736 | sizeof(connect.ht_capa_mask)); | |
5737 | ||
5738 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
b4e4f47e WY |
5739 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
5740 | kfree(connkeys); | |
7e7c8926 | 5741 | return -EINVAL; |
b4e4f47e | 5742 | } |
7e7c8926 BG |
5743 | memcpy(&connect.ht_capa, |
5744 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
5745 | sizeof(connect.ht_capa)); | |
5746 | } | |
5747 | ||
fffd0934 | 5748 | err = cfg80211_connect(rdev, dev, &connect, connkeys); |
fffd0934 JB |
5749 | if (err) |
5750 | kfree(connkeys); | |
b23aa676 SO |
5751 | return err; |
5752 | } | |
5753 | ||
5754 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
5755 | { | |
4c476991 JB |
5756 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5757 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5758 | u16 reason; |
5759 | ||
5760 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5761 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
5762 | else | |
5763 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5764 | ||
5765 | if (reason == 0) | |
5766 | return -EINVAL; | |
5767 | ||
074ac8df | 5768 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5769 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5770 | return -EOPNOTSUPP; | |
b23aa676 | 5771 | |
4c476991 | 5772 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
5773 | } |
5774 | ||
463d0183 JB |
5775 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
5776 | { | |
4c476991 | 5777 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
5778 | struct net *net; |
5779 | int err; | |
5780 | u32 pid; | |
5781 | ||
5782 | if (!info->attrs[NL80211_ATTR_PID]) | |
5783 | return -EINVAL; | |
5784 | ||
5785 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
5786 | ||
463d0183 | 5787 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
5788 | if (IS_ERR(net)) |
5789 | return PTR_ERR(net); | |
463d0183 JB |
5790 | |
5791 | err = 0; | |
5792 | ||
5793 | /* check if anything to do */ | |
4c476991 JB |
5794 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
5795 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 5796 | |
463d0183 | 5797 | put_net(net); |
463d0183 JB |
5798 | return err; |
5799 | } | |
5800 | ||
67fbb16b SO |
5801 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
5802 | { | |
4c476991 | 5803 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
5804 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
5805 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 5806 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
5807 | struct cfg80211_pmksa pmksa; |
5808 | ||
5809 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
5810 | ||
5811 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5812 | return -EINVAL; | |
5813 | ||
5814 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
5815 | return -EINVAL; | |
5816 | ||
67fbb16b SO |
5817 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
5818 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5819 | ||
074ac8df | 5820 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5821 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5822 | return -EOPNOTSUPP; | |
67fbb16b SO |
5823 | |
5824 | switch (info->genlhdr->cmd) { | |
5825 | case NL80211_CMD_SET_PMKSA: | |
5826 | rdev_ops = rdev->ops->set_pmksa; | |
5827 | break; | |
5828 | case NL80211_CMD_DEL_PMKSA: | |
5829 | rdev_ops = rdev->ops->del_pmksa; | |
5830 | break; | |
5831 | default: | |
5832 | WARN_ON(1); | |
5833 | break; | |
5834 | } | |
5835 | ||
4c476991 JB |
5836 | if (!rdev_ops) |
5837 | return -EOPNOTSUPP; | |
67fbb16b | 5838 | |
4c476991 | 5839 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
5840 | } |
5841 | ||
5842 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
5843 | { | |
4c476991 JB |
5844 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5845 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 5846 | |
074ac8df | 5847 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5848 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5849 | return -EOPNOTSUPP; | |
67fbb16b | 5850 | |
4c476991 JB |
5851 | if (!rdev->ops->flush_pmksa) |
5852 | return -EOPNOTSUPP; | |
67fbb16b | 5853 | |
e35e4d28 | 5854 | return rdev_flush_pmksa(rdev, dev); |
67fbb16b SO |
5855 | } |
5856 | ||
109086ce AN |
5857 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
5858 | { | |
5859 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5860 | struct net_device *dev = info->user_ptr[1]; | |
5861 | u8 action_code, dialog_token; | |
5862 | u16 status_code; | |
5863 | u8 *peer; | |
5864 | ||
5865 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5866 | !rdev->ops->tdls_mgmt) | |
5867 | return -EOPNOTSUPP; | |
5868 | ||
5869 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
5870 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
5871 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
5872 | !info->attrs[NL80211_ATTR_IE] || | |
5873 | !info->attrs[NL80211_ATTR_MAC]) | |
5874 | return -EINVAL; | |
5875 | ||
5876 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5877 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
5878 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
5879 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
5880 | ||
e35e4d28 HG |
5881 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
5882 | dialog_token, status_code, | |
5883 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5884 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
109086ce AN |
5885 | } |
5886 | ||
5887 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
5888 | { | |
5889 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5890 | struct net_device *dev = info->user_ptr[1]; | |
5891 | enum nl80211_tdls_operation operation; | |
5892 | u8 *peer; | |
5893 | ||
5894 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5895 | !rdev->ops->tdls_oper) | |
5896 | return -EOPNOTSUPP; | |
5897 | ||
5898 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
5899 | !info->attrs[NL80211_ATTR_MAC]) | |
5900 | return -EINVAL; | |
5901 | ||
5902 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
5903 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5904 | ||
e35e4d28 | 5905 | return rdev_tdls_oper(rdev, dev, peer, operation); |
109086ce AN |
5906 | } |
5907 | ||
9588bbd5 JM |
5908 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
5909 | struct genl_info *info) | |
5910 | { | |
4c476991 | 5911 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 5912 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 JM |
5913 | struct ieee80211_channel *chan; |
5914 | struct sk_buff *msg; | |
5915 | void *hdr; | |
5916 | u64 cookie; | |
5917 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
5918 | u32 freq, duration; | |
5919 | int err; | |
5920 | ||
5921 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5922 | !info->attrs[NL80211_ATTR_DURATION]) | |
5923 | return -EINVAL; | |
5924 | ||
5925 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
5926 | ||
ebf348fc JB |
5927 | if (!rdev->ops->remain_on_channel || |
5928 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
5929 | return -EOPNOTSUPP; | |
5930 | ||
9588bbd5 | 5931 | /* |
ebf348fc JB |
5932 | * We should be on that channel for at least a minimum amount of |
5933 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 5934 | */ |
ebf348fc | 5935 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 5936 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
5937 | return -EINVAL; |
5938 | ||
cd6c6598 JB |
5939 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && |
5940 | !nl80211_valid_channel_type(info, &channel_type)) | |
5941 | return -EINVAL; | |
9588bbd5 JM |
5942 | |
5943 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
5944 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
5945 | if (chan == NULL) |
5946 | return -EINVAL; | |
9588bbd5 JM |
5947 | |
5948 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
5949 | if (!msg) |
5950 | return -ENOMEM; | |
9588bbd5 | 5951 | |
15e47304 | 5952 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
9588bbd5 JM |
5953 | NL80211_CMD_REMAIN_ON_CHANNEL); |
5954 | ||
5955 | if (IS_ERR(hdr)) { | |
5956 | err = PTR_ERR(hdr); | |
5957 | goto free_msg; | |
5958 | } | |
5959 | ||
e35e4d28 HG |
5960 | err = rdev_remain_on_channel(rdev, wdev, chan, channel_type, duration, |
5961 | &cookie); | |
9588bbd5 JM |
5962 | |
5963 | if (err) | |
5964 | goto free_msg; | |
5965 | ||
9360ffd1 DM |
5966 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
5967 | goto nla_put_failure; | |
9588bbd5 JM |
5968 | |
5969 | genlmsg_end(msg, hdr); | |
4c476991 JB |
5970 | |
5971 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
5972 | |
5973 | nla_put_failure: | |
5974 | err = -ENOBUFS; | |
5975 | free_msg: | |
5976 | nlmsg_free(msg); | |
9588bbd5 JM |
5977 | return err; |
5978 | } | |
5979 | ||
5980 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
5981 | struct genl_info *info) | |
5982 | { | |
4c476991 | 5983 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 5984 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 | 5985 | u64 cookie; |
9588bbd5 JM |
5986 | |
5987 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5988 | return -EINVAL; | |
5989 | ||
4c476991 JB |
5990 | if (!rdev->ops->cancel_remain_on_channel) |
5991 | return -EOPNOTSUPP; | |
9588bbd5 | 5992 | |
9588bbd5 JM |
5993 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
5994 | ||
e35e4d28 | 5995 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
9588bbd5 JM |
5996 | } |
5997 | ||
13ae75b1 JM |
5998 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
5999 | u8 *rates, u8 rates_len) | |
6000 | { | |
6001 | u8 i; | |
6002 | u32 mask = 0; | |
6003 | ||
6004 | for (i = 0; i < rates_len; i++) { | |
6005 | int rate = (rates[i] & 0x7f) * 5; | |
6006 | int ridx; | |
6007 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
6008 | struct ieee80211_rate *srate = | |
6009 | &sband->bitrates[ridx]; | |
6010 | if (rate == srate->bitrate) { | |
6011 | mask |= 1 << ridx; | |
6012 | break; | |
6013 | } | |
6014 | } | |
6015 | if (ridx == sband->n_bitrates) | |
6016 | return 0; /* rate not found */ | |
6017 | } | |
6018 | ||
6019 | return mask; | |
6020 | } | |
6021 | ||
24db78c0 SW |
6022 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
6023 | u8 *rates, u8 rates_len, | |
6024 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
6025 | { | |
6026 | u8 i; | |
6027 | ||
6028 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
6029 | ||
6030 | for (i = 0; i < rates_len; i++) { | |
6031 | int ridx, rbit; | |
6032 | ||
6033 | ridx = rates[i] / 8; | |
6034 | rbit = BIT(rates[i] % 8); | |
6035 | ||
6036 | /* check validity */ | |
910570b5 | 6037 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
6038 | return false; |
6039 | ||
6040 | /* check availability */ | |
6041 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
6042 | mcs[ridx] |= rbit; | |
6043 | else | |
6044 | return false; | |
6045 | } | |
6046 | ||
6047 | return true; | |
6048 | } | |
6049 | ||
b54452b0 | 6050 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
6051 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
6052 | .len = NL80211_MAX_SUPP_RATES }, | |
24db78c0 SW |
6053 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, |
6054 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
13ae75b1 JM |
6055 | }; |
6056 | ||
6057 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
6058 | struct genl_info *info) | |
6059 | { | |
6060 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 6061 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 6062 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
6063 | int rem, i; |
6064 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
6065 | struct nlattr *tx_rates; |
6066 | struct ieee80211_supported_band *sband; | |
6067 | ||
6068 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
6069 | return -EINVAL; | |
6070 | ||
4c476991 JB |
6071 | if (!rdev->ops->set_bitrate_mask) |
6072 | return -EOPNOTSUPP; | |
13ae75b1 JM |
6073 | |
6074 | memset(&mask, 0, sizeof(mask)); | |
6075 | /* Default to all rates enabled */ | |
6076 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
6077 | sband = rdev->wiphy.bands[i]; | |
6078 | mask.control[i].legacy = | |
6079 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
24db78c0 SW |
6080 | if (sband) |
6081 | memcpy(mask.control[i].mcs, | |
6082 | sband->ht_cap.mcs.rx_mask, | |
6083 | sizeof(mask.control[i].mcs)); | |
6084 | else | |
6085 | memset(mask.control[i].mcs, 0, | |
6086 | sizeof(mask.control[i].mcs)); | |
13ae75b1 JM |
6087 | } |
6088 | ||
6089 | /* | |
6090 | * The nested attribute uses enum nl80211_band as the index. This maps | |
6091 | * directly to the enum ieee80211_band values used in cfg80211. | |
6092 | */ | |
24db78c0 | 6093 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
13ae75b1 JM |
6094 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) |
6095 | { | |
6096 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
6097 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
6098 | return -EINVAL; | |
13ae75b1 | 6099 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
6100 | if (sband == NULL) |
6101 | return -EINVAL; | |
13ae75b1 JM |
6102 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
6103 | nla_len(tx_rates), nl80211_txattr_policy); | |
6104 | if (tb[NL80211_TXRATE_LEGACY]) { | |
6105 | mask.control[band].legacy = rateset_to_mask( | |
6106 | sband, | |
6107 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
6108 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
6109 | if ((mask.control[band].legacy == 0) && |
6110 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
6111 | return -EINVAL; | |
24db78c0 SW |
6112 | } |
6113 | if (tb[NL80211_TXRATE_MCS]) { | |
6114 | if (!ht_rateset_to_mask( | |
6115 | sband, | |
6116 | nla_data(tb[NL80211_TXRATE_MCS]), | |
6117 | nla_len(tb[NL80211_TXRATE_MCS]), | |
6118 | mask.control[band].mcs)) | |
6119 | return -EINVAL; | |
6120 | } | |
6121 | ||
6122 | if (mask.control[band].legacy == 0) { | |
6123 | /* don't allow empty legacy rates if HT | |
6124 | * is not even supported. */ | |
6125 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) | |
6126 | return -EINVAL; | |
6127 | ||
6128 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
6129 | if (mask.control[band].mcs[i]) | |
6130 | break; | |
6131 | ||
6132 | /* legacy and mcs rates may not be both empty */ | |
6133 | if (i == IEEE80211_HT_MCS_MASK_LEN) | |
4c476991 | 6134 | return -EINVAL; |
13ae75b1 JM |
6135 | } |
6136 | } | |
6137 | ||
e35e4d28 | 6138 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); |
13ae75b1 JM |
6139 | } |
6140 | ||
2e161f78 | 6141 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 6142 | { |
4c476991 | 6143 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6144 | struct wireless_dev *wdev = info->user_ptr[1]; |
2e161f78 | 6145 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
6146 | |
6147 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
6148 | return -EINVAL; | |
6149 | ||
2e161f78 JB |
6150 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
6151 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 6152 | |
71bbc994 JB |
6153 | switch (wdev->iftype) { |
6154 | case NL80211_IFTYPE_STATION: | |
6155 | case NL80211_IFTYPE_ADHOC: | |
6156 | case NL80211_IFTYPE_P2P_CLIENT: | |
6157 | case NL80211_IFTYPE_AP: | |
6158 | case NL80211_IFTYPE_AP_VLAN: | |
6159 | case NL80211_IFTYPE_MESH_POINT: | |
6160 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6161 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6162 | break; |
6163 | default: | |
4c476991 | 6164 | return -EOPNOTSUPP; |
71bbc994 | 6165 | } |
026331c4 JM |
6166 | |
6167 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
6168 | if (!rdev->ops->mgmt_tx) |
6169 | return -EOPNOTSUPP; | |
026331c4 | 6170 | |
15e47304 | 6171 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
026331c4 JM |
6172 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
6173 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
6174 | } |
6175 | ||
2e161f78 | 6176 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 6177 | { |
4c476991 | 6178 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6179 | struct wireless_dev *wdev = info->user_ptr[1]; |
026331c4 JM |
6180 | struct ieee80211_channel *chan; |
6181 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 6182 | bool channel_type_valid = false; |
026331c4 JM |
6183 | u32 freq; |
6184 | int err; | |
d64d373f | 6185 | void *hdr = NULL; |
026331c4 | 6186 | u64 cookie; |
e247bd90 | 6187 | struct sk_buff *msg = NULL; |
f7ca38df | 6188 | unsigned int wait = 0; |
e247bd90 JB |
6189 | bool offchan, no_cck, dont_wait_for_ack; |
6190 | ||
6191 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; | |
026331c4 JM |
6192 | |
6193 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
6194 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
6195 | return -EINVAL; | |
6196 | ||
4c476991 JB |
6197 | if (!rdev->ops->mgmt_tx) |
6198 | return -EOPNOTSUPP; | |
026331c4 | 6199 | |
71bbc994 JB |
6200 | switch (wdev->iftype) { |
6201 | case NL80211_IFTYPE_STATION: | |
6202 | case NL80211_IFTYPE_ADHOC: | |
6203 | case NL80211_IFTYPE_P2P_CLIENT: | |
6204 | case NL80211_IFTYPE_AP: | |
6205 | case NL80211_IFTYPE_AP_VLAN: | |
6206 | case NL80211_IFTYPE_MESH_POINT: | |
6207 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6208 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6209 | break; |
6210 | default: | |
4c476991 | 6211 | return -EOPNOTSUPP; |
71bbc994 | 6212 | } |
026331c4 | 6213 | |
f7ca38df | 6214 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 6215 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df JB |
6216 | return -EINVAL; |
6217 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
ebf348fc JB |
6218 | |
6219 | /* | |
6220 | * We should wait on the channel for at least a minimum amount | |
6221 | * of time (10ms) but no longer than the driver supports. | |
6222 | */ | |
6223 | if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
6224 | wait > rdev->wiphy.max_remain_on_channel_duration) | |
6225 | return -EINVAL; | |
6226 | ||
f7ca38df JB |
6227 | } |
6228 | ||
026331c4 | 6229 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
cd6c6598 | 6230 | if (!nl80211_valid_channel_type(info, &channel_type)) |
4c476991 | 6231 | return -EINVAL; |
252aa631 | 6232 | channel_type_valid = true; |
026331c4 JM |
6233 | } |
6234 | ||
f7ca38df JB |
6235 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
6236 | ||
7c4ef712 JB |
6237 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
6238 | return -EINVAL; | |
6239 | ||
e9f935e3 RM |
6240 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
6241 | ||
026331c4 JM |
6242 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); |
6243 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
6244 | if (chan == NULL) |
6245 | return -EINVAL; | |
026331c4 | 6246 | |
e247bd90 JB |
6247 | if (!dont_wait_for_ack) { |
6248 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6249 | if (!msg) | |
6250 | return -ENOMEM; | |
026331c4 | 6251 | |
15e47304 | 6252 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
e247bd90 | 6253 | NL80211_CMD_FRAME); |
026331c4 | 6254 | |
e247bd90 JB |
6255 | if (IS_ERR(hdr)) { |
6256 | err = PTR_ERR(hdr); | |
6257 | goto free_msg; | |
6258 | } | |
026331c4 | 6259 | } |
e247bd90 | 6260 | |
71bbc994 | 6261 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type, |
f7ca38df | 6262 | channel_type_valid, wait, |
2e161f78 JB |
6263 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
6264 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
e247bd90 | 6265 | no_cck, dont_wait_for_ack, &cookie); |
026331c4 JM |
6266 | if (err) |
6267 | goto free_msg; | |
6268 | ||
e247bd90 | 6269 | if (msg) { |
9360ffd1 DM |
6270 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6271 | goto nla_put_failure; | |
026331c4 | 6272 | |
e247bd90 JB |
6273 | genlmsg_end(msg, hdr); |
6274 | return genlmsg_reply(msg, info); | |
6275 | } | |
6276 | ||
6277 | return 0; | |
026331c4 JM |
6278 | |
6279 | nla_put_failure: | |
6280 | err = -ENOBUFS; | |
6281 | free_msg: | |
6282 | nlmsg_free(msg); | |
026331c4 JM |
6283 | return err; |
6284 | } | |
6285 | ||
f7ca38df JB |
6286 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
6287 | { | |
6288 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
71bbc994 | 6289 | struct wireless_dev *wdev = info->user_ptr[1]; |
f7ca38df JB |
6290 | u64 cookie; |
6291 | ||
6292 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
6293 | return -EINVAL; | |
6294 | ||
6295 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
6296 | return -EOPNOTSUPP; | |
6297 | ||
71bbc994 JB |
6298 | switch (wdev->iftype) { |
6299 | case NL80211_IFTYPE_STATION: | |
6300 | case NL80211_IFTYPE_ADHOC: | |
6301 | case NL80211_IFTYPE_P2P_CLIENT: | |
6302 | case NL80211_IFTYPE_AP: | |
6303 | case NL80211_IFTYPE_AP_VLAN: | |
6304 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6305 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6306 | break; |
6307 | default: | |
f7ca38df | 6308 | return -EOPNOTSUPP; |
71bbc994 | 6309 | } |
f7ca38df JB |
6310 | |
6311 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
6312 | ||
e35e4d28 | 6313 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
f7ca38df JB |
6314 | } |
6315 | ||
ffb9eb3d KV |
6316 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
6317 | { | |
4c476991 | 6318 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 6319 | struct wireless_dev *wdev; |
4c476991 | 6320 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
6321 | u8 ps_state; |
6322 | bool state; | |
6323 | int err; | |
6324 | ||
4c476991 JB |
6325 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
6326 | return -EINVAL; | |
ffb9eb3d KV |
6327 | |
6328 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
6329 | ||
4c476991 JB |
6330 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
6331 | return -EINVAL; | |
ffb9eb3d KV |
6332 | |
6333 | wdev = dev->ieee80211_ptr; | |
6334 | ||
4c476991 JB |
6335 | if (!rdev->ops->set_power_mgmt) |
6336 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
6337 | |
6338 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
6339 | ||
6340 | if (state == wdev->ps) | |
4c476991 | 6341 | return 0; |
ffb9eb3d | 6342 | |
e35e4d28 | 6343 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
4c476991 JB |
6344 | if (!err) |
6345 | wdev->ps = state; | |
ffb9eb3d KV |
6346 | return err; |
6347 | } | |
6348 | ||
6349 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
6350 | { | |
4c476991 | 6351 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
6352 | enum nl80211_ps_state ps_state; |
6353 | struct wireless_dev *wdev; | |
4c476991 | 6354 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
6355 | struct sk_buff *msg; |
6356 | void *hdr; | |
6357 | int err; | |
6358 | ||
ffb9eb3d KV |
6359 | wdev = dev->ieee80211_ptr; |
6360 | ||
4c476991 JB |
6361 | if (!rdev->ops->set_power_mgmt) |
6362 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
6363 | |
6364 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
6365 | if (!msg) |
6366 | return -ENOMEM; | |
ffb9eb3d | 6367 | |
15e47304 | 6368 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ffb9eb3d KV |
6369 | NL80211_CMD_GET_POWER_SAVE); |
6370 | if (!hdr) { | |
4c476991 | 6371 | err = -ENOBUFS; |
ffb9eb3d KV |
6372 | goto free_msg; |
6373 | } | |
6374 | ||
6375 | if (wdev->ps) | |
6376 | ps_state = NL80211_PS_ENABLED; | |
6377 | else | |
6378 | ps_state = NL80211_PS_DISABLED; | |
6379 | ||
9360ffd1 DM |
6380 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
6381 | goto nla_put_failure; | |
ffb9eb3d KV |
6382 | |
6383 | genlmsg_end(msg, hdr); | |
4c476991 | 6384 | return genlmsg_reply(msg, info); |
ffb9eb3d | 6385 | |
4c476991 | 6386 | nla_put_failure: |
ffb9eb3d | 6387 | err = -ENOBUFS; |
4c476991 | 6388 | free_msg: |
ffb9eb3d | 6389 | nlmsg_free(msg); |
ffb9eb3d KV |
6390 | return err; |
6391 | } | |
6392 | ||
d6dc1a38 JO |
6393 | static struct nla_policy |
6394 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
6395 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
6396 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
6397 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
84f10708 TP |
6398 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
6399 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
6400 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
d6dc1a38 JO |
6401 | }; |
6402 | ||
84f10708 TP |
6403 | static int nl80211_set_cqm_txe(struct genl_info *info, |
6404 | u32 rate, u32 pkts, u32 intvl) | |
6405 | { | |
6406 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6407 | struct wireless_dev *wdev; | |
6408 | struct net_device *dev = info->user_ptr[1]; | |
6409 | ||
6410 | if ((rate < 0 || rate > 100) || | |
6411 | (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL)) | |
6412 | return -EINVAL; | |
6413 | ||
6414 | wdev = dev->ieee80211_ptr; | |
6415 | ||
6416 | if (!rdev->ops->set_cqm_txe_config) | |
6417 | return -EOPNOTSUPP; | |
6418 | ||
6419 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
6420 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
6421 | return -EOPNOTSUPP; | |
6422 | ||
e35e4d28 | 6423 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
84f10708 TP |
6424 | } |
6425 | ||
d6dc1a38 JO |
6426 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
6427 | s32 threshold, u32 hysteresis) | |
6428 | { | |
4c476991 | 6429 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 6430 | struct wireless_dev *wdev; |
4c476991 | 6431 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
6432 | |
6433 | if (threshold > 0) | |
6434 | return -EINVAL; | |
6435 | ||
d6dc1a38 JO |
6436 | wdev = dev->ieee80211_ptr; |
6437 | ||
4c476991 JB |
6438 | if (!rdev->ops->set_cqm_rssi_config) |
6439 | return -EOPNOTSUPP; | |
d6dc1a38 | 6440 | |
074ac8df | 6441 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6442 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6443 | return -EOPNOTSUPP; | |
d6dc1a38 | 6444 | |
e35e4d28 | 6445 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); |
d6dc1a38 JO |
6446 | } |
6447 | ||
6448 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
6449 | { | |
6450 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
6451 | struct nlattr *cqm; | |
6452 | int err; | |
6453 | ||
6454 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
6455 | if (!cqm) { | |
6456 | err = -EINVAL; | |
6457 | goto out; | |
6458 | } | |
6459 | ||
6460 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
6461 | nl80211_attr_cqm_policy); | |
6462 | if (err) | |
6463 | goto out; | |
6464 | ||
6465 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
6466 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
6467 | s32 threshold; | |
6468 | u32 hysteresis; | |
6469 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
6470 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
6471 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
84f10708 TP |
6472 | } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] && |
6473 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
6474 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
6475 | u32 rate, pkts, intvl; | |
6476 | rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
6477 | pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
6478 | intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
6479 | err = nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
d6dc1a38 JO |
6480 | } else |
6481 | err = -EINVAL; | |
6482 | ||
6483 | out: | |
6484 | return err; | |
6485 | } | |
6486 | ||
29cbe68c JB |
6487 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
6488 | { | |
6489 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6490 | struct net_device *dev = info->user_ptr[1]; | |
6491 | struct mesh_config cfg; | |
c80d545d | 6492 | struct mesh_setup setup; |
29cbe68c JB |
6493 | int err; |
6494 | ||
6495 | /* start with default */ | |
6496 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 6497 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 6498 | |
24bdd9f4 | 6499 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 6500 | /* and parse parameters if given */ |
24bdd9f4 | 6501 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
6502 | if (err) |
6503 | return err; | |
6504 | } | |
6505 | ||
6506 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
6507 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
6508 | return -EINVAL; | |
6509 | ||
c80d545d JC |
6510 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
6511 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
6512 | ||
4bb62344 CYY |
6513 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
6514 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
6515 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
6516 | return -EINVAL; | |
6517 | ||
c80d545d JC |
6518 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
6519 | /* parse additional setup parameters if given */ | |
6520 | err = nl80211_parse_mesh_setup(info, &setup); | |
6521 | if (err) | |
6522 | return err; | |
6523 | } | |
6524 | ||
cc1d2806 JB |
6525 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
6526 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
6527 | ||
6528 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
6529 | !nl80211_valid_channel_type(info, &channel_type)) | |
6530 | return -EINVAL; | |
6531 | ||
6532 | setup.channel = rdev_freq_to_chan(rdev, | |
6533 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
6534 | channel_type); | |
6535 | if (!setup.channel) | |
6536 | return -EINVAL; | |
6537 | setup.channel_type = channel_type; | |
6538 | } else { | |
6539 | /* cfg80211_join_mesh() will sort it out */ | |
6540 | setup.channel = NULL; | |
6541 | } | |
6542 | ||
c80d545d | 6543 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
6544 | } |
6545 | ||
6546 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
6547 | { | |
6548 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6549 | struct net_device *dev = info->user_ptr[1]; | |
6550 | ||
6551 | return cfg80211_leave_mesh(rdev, dev); | |
6552 | } | |
6553 | ||
dfb89c56 | 6554 | #ifdef CONFIG_PM |
ff1b6e69 JB |
6555 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
6556 | { | |
6557 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6558 | struct sk_buff *msg; | |
6559 | void *hdr; | |
6560 | ||
6561 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6562 | return -EOPNOTSUPP; | |
6563 | ||
6564 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6565 | if (!msg) | |
6566 | return -ENOMEM; | |
6567 | ||
15e47304 | 6568 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ff1b6e69 JB |
6569 | NL80211_CMD_GET_WOWLAN); |
6570 | if (!hdr) | |
6571 | goto nla_put_failure; | |
6572 | ||
6573 | if (rdev->wowlan) { | |
6574 | struct nlattr *nl_wowlan; | |
6575 | ||
6576 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
6577 | if (!nl_wowlan) | |
6578 | goto nla_put_failure; | |
6579 | ||
9360ffd1 DM |
6580 | if ((rdev->wowlan->any && |
6581 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
6582 | (rdev->wowlan->disconnect && | |
6583 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
6584 | (rdev->wowlan->magic_pkt && | |
6585 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
6586 | (rdev->wowlan->gtk_rekey_failure && | |
6587 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
6588 | (rdev->wowlan->eap_identity_req && | |
6589 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
6590 | (rdev->wowlan->four_way_handshake && | |
6591 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
6592 | (rdev->wowlan->rfkill_release && | |
6593 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
6594 | goto nla_put_failure; | |
ff1b6e69 JB |
6595 | if (rdev->wowlan->n_patterns) { |
6596 | struct nlattr *nl_pats, *nl_pat; | |
6597 | int i, pat_len; | |
6598 | ||
6599 | nl_pats = nla_nest_start(msg, | |
6600 | NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
6601 | if (!nl_pats) | |
6602 | goto nla_put_failure; | |
6603 | ||
6604 | for (i = 0; i < rdev->wowlan->n_patterns; i++) { | |
6605 | nl_pat = nla_nest_start(msg, i + 1); | |
6606 | if (!nl_pat) | |
6607 | goto nla_put_failure; | |
6608 | pat_len = rdev->wowlan->patterns[i].pattern_len; | |
9360ffd1 DM |
6609 | if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK, |
6610 | DIV_ROUND_UP(pat_len, 8), | |
6611 | rdev->wowlan->patterns[i].mask) || | |
6612 | nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN, | |
6613 | pat_len, | |
6614 | rdev->wowlan->patterns[i].pattern)) | |
6615 | goto nla_put_failure; | |
ff1b6e69 JB |
6616 | nla_nest_end(msg, nl_pat); |
6617 | } | |
6618 | nla_nest_end(msg, nl_pats); | |
6619 | } | |
6620 | ||
6621 | nla_nest_end(msg, nl_wowlan); | |
6622 | } | |
6623 | ||
6624 | genlmsg_end(msg, hdr); | |
6625 | return genlmsg_reply(msg, info); | |
6626 | ||
6627 | nla_put_failure: | |
6628 | nlmsg_free(msg); | |
6629 | return -ENOBUFS; | |
6630 | } | |
6631 | ||
6632 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) | |
6633 | { | |
6634 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6635 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
ff1b6e69 | 6636 | struct cfg80211_wowlan new_triggers = {}; |
ae33bd81 | 6637 | struct cfg80211_wowlan *ntrig; |
ff1b6e69 JB |
6638 | struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; |
6639 | int err, i; | |
6d52563f | 6640 | bool prev_enabled = rdev->wowlan; |
ff1b6e69 JB |
6641 | |
6642 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6643 | return -EOPNOTSUPP; | |
6644 | ||
ae33bd81 JB |
6645 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
6646 | cfg80211_rdev_free_wowlan(rdev); | |
6647 | rdev->wowlan = NULL; | |
6648 | goto set_wakeup; | |
6649 | } | |
ff1b6e69 JB |
6650 | |
6651 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
6652 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6653 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6654 | nl80211_wowlan_policy); | |
6655 | if (err) | |
6656 | return err; | |
6657 | ||
6658 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
6659 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
6660 | return -EINVAL; | |
6661 | new_triggers.any = true; | |
6662 | } | |
6663 | ||
6664 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
6665 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
6666 | return -EINVAL; | |
6667 | new_triggers.disconnect = true; | |
6668 | } | |
6669 | ||
6670 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
6671 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
6672 | return -EINVAL; | |
6673 | new_triggers.magic_pkt = true; | |
6674 | } | |
6675 | ||
77dbbb13 JB |
6676 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
6677 | return -EINVAL; | |
6678 | ||
6679 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
6680 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
6681 | return -EINVAL; | |
6682 | new_triggers.gtk_rekey_failure = true; | |
6683 | } | |
6684 | ||
6685 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
6686 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
6687 | return -EINVAL; | |
6688 | new_triggers.eap_identity_req = true; | |
6689 | } | |
6690 | ||
6691 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
6692 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
6693 | return -EINVAL; | |
6694 | new_triggers.four_way_handshake = true; | |
6695 | } | |
6696 | ||
6697 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
6698 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
6699 | return -EINVAL; | |
6700 | new_triggers.rfkill_release = true; | |
6701 | } | |
6702 | ||
ff1b6e69 JB |
6703 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
6704 | struct nlattr *pat; | |
6705 | int n_patterns = 0; | |
6706 | int rem, pat_len, mask_len; | |
6707 | struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; | |
6708 | ||
6709 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6710 | rem) | |
6711 | n_patterns++; | |
6712 | if (n_patterns > wowlan->n_patterns) | |
6713 | return -EINVAL; | |
6714 | ||
6715 | new_triggers.patterns = kcalloc(n_patterns, | |
6716 | sizeof(new_triggers.patterns[0]), | |
6717 | GFP_KERNEL); | |
6718 | if (!new_triggers.patterns) | |
6719 | return -ENOMEM; | |
6720 | ||
6721 | new_triggers.n_patterns = n_patterns; | |
6722 | i = 0; | |
6723 | ||
6724 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6725 | rem) { | |
6726 | nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, | |
6727 | nla_data(pat), nla_len(pat), NULL); | |
6728 | err = -EINVAL; | |
6729 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || | |
6730 | !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) | |
6731 | goto error; | |
6732 | pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); | |
6733 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
6734 | if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != | |
6735 | mask_len) | |
6736 | goto error; | |
6737 | if (pat_len > wowlan->pattern_max_len || | |
6738 | pat_len < wowlan->pattern_min_len) | |
6739 | goto error; | |
6740 | ||
6741 | new_triggers.patterns[i].mask = | |
6742 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
6743 | if (!new_triggers.patterns[i].mask) { | |
6744 | err = -ENOMEM; | |
6745 | goto error; | |
6746 | } | |
6747 | new_triggers.patterns[i].pattern = | |
6748 | new_triggers.patterns[i].mask + mask_len; | |
6749 | memcpy(new_triggers.patterns[i].mask, | |
6750 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), | |
6751 | mask_len); | |
6752 | new_triggers.patterns[i].pattern_len = pat_len; | |
6753 | memcpy(new_triggers.patterns[i].pattern, | |
6754 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), | |
6755 | pat_len); | |
6756 | i++; | |
6757 | } | |
6758 | } | |
6759 | ||
ae33bd81 JB |
6760 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
6761 | if (!ntrig) { | |
6762 | err = -ENOMEM; | |
6763 | goto error; | |
ff1b6e69 | 6764 | } |
ae33bd81 JB |
6765 | cfg80211_rdev_free_wowlan(rdev); |
6766 | rdev->wowlan = ntrig; | |
ff1b6e69 | 6767 | |
ae33bd81 | 6768 | set_wakeup: |
6d52563f | 6769 | if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan) |
e35e4d28 | 6770 | rdev_set_wakeup(rdev, rdev->wowlan); |
6d52563f | 6771 | |
ff1b6e69 JB |
6772 | return 0; |
6773 | error: | |
6774 | for (i = 0; i < new_triggers.n_patterns; i++) | |
6775 | kfree(new_triggers.patterns[i].mask); | |
6776 | kfree(new_triggers.patterns); | |
6777 | return err; | |
6778 | } | |
dfb89c56 | 6779 | #endif |
ff1b6e69 | 6780 | |
e5497d76 JB |
6781 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
6782 | { | |
6783 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6784 | struct net_device *dev = info->user_ptr[1]; | |
6785 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6786 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
6787 | struct cfg80211_gtk_rekey_data rekey_data; | |
6788 | int err; | |
6789 | ||
6790 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
6791 | return -EINVAL; | |
6792 | ||
6793 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
6794 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6795 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6796 | nl80211_rekey_policy); | |
6797 | if (err) | |
6798 | return err; | |
6799 | ||
6800 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
6801 | return -ERANGE; | |
6802 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
6803 | return -ERANGE; | |
6804 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
6805 | return -ERANGE; | |
6806 | ||
6807 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
6808 | NL80211_KEK_LEN); | |
6809 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
6810 | NL80211_KCK_LEN); | |
6811 | memcpy(rekey_data.replay_ctr, | |
6812 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
6813 | NL80211_REPLAY_CTR_LEN); | |
6814 | ||
6815 | wdev_lock(wdev); | |
6816 | if (!wdev->current_bss) { | |
6817 | err = -ENOTCONN; | |
6818 | goto out; | |
6819 | } | |
6820 | ||
6821 | if (!rdev->ops->set_rekey_data) { | |
6822 | err = -EOPNOTSUPP; | |
6823 | goto out; | |
6824 | } | |
6825 | ||
e35e4d28 | 6826 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
e5497d76 JB |
6827 | out: |
6828 | wdev_unlock(wdev); | |
6829 | return err; | |
6830 | } | |
6831 | ||
28946da7 JB |
6832 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
6833 | struct genl_info *info) | |
6834 | { | |
6835 | struct net_device *dev = info->user_ptr[1]; | |
6836 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6837 | ||
6838 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6839 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6840 | return -EINVAL; | |
6841 | ||
15e47304 | 6842 | if (wdev->ap_unexpected_nlportid) |
28946da7 JB |
6843 | return -EBUSY; |
6844 | ||
15e47304 | 6845 | wdev->ap_unexpected_nlportid = info->snd_portid; |
28946da7 JB |
6846 | return 0; |
6847 | } | |
6848 | ||
7f6cf311 JB |
6849 | static int nl80211_probe_client(struct sk_buff *skb, |
6850 | struct genl_info *info) | |
6851 | { | |
6852 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6853 | struct net_device *dev = info->user_ptr[1]; | |
6854 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6855 | struct sk_buff *msg; | |
6856 | void *hdr; | |
6857 | const u8 *addr; | |
6858 | u64 cookie; | |
6859 | int err; | |
6860 | ||
6861 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6862 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6863 | return -EOPNOTSUPP; | |
6864 | ||
6865 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6866 | return -EINVAL; | |
6867 | ||
6868 | if (!rdev->ops->probe_client) | |
6869 | return -EOPNOTSUPP; | |
6870 | ||
6871 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6872 | if (!msg) | |
6873 | return -ENOMEM; | |
6874 | ||
15e47304 | 6875 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7f6cf311 JB |
6876 | NL80211_CMD_PROBE_CLIENT); |
6877 | ||
6878 | if (IS_ERR(hdr)) { | |
6879 | err = PTR_ERR(hdr); | |
6880 | goto free_msg; | |
6881 | } | |
6882 | ||
6883 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6884 | ||
e35e4d28 | 6885 | err = rdev_probe_client(rdev, dev, addr, &cookie); |
7f6cf311 JB |
6886 | if (err) |
6887 | goto free_msg; | |
6888 | ||
9360ffd1 DM |
6889 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6890 | goto nla_put_failure; | |
7f6cf311 JB |
6891 | |
6892 | genlmsg_end(msg, hdr); | |
6893 | ||
6894 | return genlmsg_reply(msg, info); | |
6895 | ||
6896 | nla_put_failure: | |
6897 | err = -ENOBUFS; | |
6898 | free_msg: | |
6899 | nlmsg_free(msg); | |
6900 | return err; | |
6901 | } | |
6902 | ||
5e760230 JB |
6903 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
6904 | { | |
6905 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6906 | ||
6907 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
6908 | return -EOPNOTSUPP; | |
6909 | ||
15e47304 | 6910 | if (rdev->ap_beacons_nlportid) |
5e760230 JB |
6911 | return -EBUSY; |
6912 | ||
15e47304 | 6913 | rdev->ap_beacons_nlportid = info->snd_portid; |
5e760230 JB |
6914 | |
6915 | return 0; | |
6916 | } | |
6917 | ||
98104fde JB |
6918 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
6919 | { | |
6920 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6921 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6922 | int err; | |
6923 | ||
6924 | if (!rdev->ops->start_p2p_device) | |
6925 | return -EOPNOTSUPP; | |
6926 | ||
6927 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
6928 | return -EOPNOTSUPP; | |
6929 | ||
6930 | if (wdev->p2p_started) | |
6931 | return 0; | |
6932 | ||
6933 | mutex_lock(&rdev->devlist_mtx); | |
6934 | err = cfg80211_can_add_interface(rdev, wdev->iftype); | |
6935 | mutex_unlock(&rdev->devlist_mtx); | |
6936 | if (err) | |
6937 | return err; | |
6938 | ||
eeb126e9 | 6939 | err = rdev_start_p2p_device(rdev, wdev); |
98104fde JB |
6940 | if (err) |
6941 | return err; | |
6942 | ||
6943 | wdev->p2p_started = true; | |
6944 | mutex_lock(&rdev->devlist_mtx); | |
6945 | rdev->opencount++; | |
6946 | mutex_unlock(&rdev->devlist_mtx); | |
6947 | ||
6948 | return 0; | |
6949 | } | |
6950 | ||
6951 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
6952 | { | |
6953 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6954 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6955 | ||
6956 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
6957 | return -EOPNOTSUPP; | |
6958 | ||
6959 | if (!rdev->ops->stop_p2p_device) | |
6960 | return -EOPNOTSUPP; | |
6961 | ||
6962 | if (!wdev->p2p_started) | |
6963 | return 0; | |
6964 | ||
eeb126e9 | 6965 | rdev_stop_p2p_device(rdev, wdev); |
98104fde JB |
6966 | wdev->p2p_started = false; |
6967 | ||
6968 | mutex_lock(&rdev->devlist_mtx); | |
6969 | rdev->opencount--; | |
6970 | mutex_unlock(&rdev->devlist_mtx); | |
6971 | ||
6972 | if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) { | |
6973 | rdev->scan_req->aborted = true; | |
6974 | ___cfg80211_scan_done(rdev, true); | |
6975 | } | |
6976 | ||
6977 | return 0; | |
6978 | } | |
6979 | ||
4c476991 JB |
6980 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
6981 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
6982 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
6983 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
6984 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
6985 | NL80211_FLAG_CHECK_NETDEV_UP) | |
1bf614ef | 6986 | #define NL80211_FLAG_NEED_WDEV 0x10 |
98104fde | 6987 | /* If a netdev is associated, it must be UP, P2P must be started */ |
1bf614ef JB |
6988 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
6989 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
6990 | |
6991 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6992 | struct genl_info *info) | |
6993 | { | |
6994 | struct cfg80211_registered_device *rdev; | |
89a54e48 | 6995 | struct wireless_dev *wdev; |
4c476991 | 6996 | struct net_device *dev; |
4c476991 JB |
6997 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
6998 | ||
6999 | if (rtnl) | |
7000 | rtnl_lock(); | |
7001 | ||
7002 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4f7eff10 | 7003 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
4c476991 JB |
7004 | if (IS_ERR(rdev)) { |
7005 | if (rtnl) | |
7006 | rtnl_unlock(); | |
7007 | return PTR_ERR(rdev); | |
7008 | } | |
7009 | info->user_ptr[0] = rdev; | |
1bf614ef JB |
7010 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
7011 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
89a54e48 JB |
7012 | mutex_lock(&cfg80211_mutex); |
7013 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), | |
7014 | info->attrs); | |
7015 | if (IS_ERR(wdev)) { | |
7016 | mutex_unlock(&cfg80211_mutex); | |
4c476991 JB |
7017 | if (rtnl) |
7018 | rtnl_unlock(); | |
89a54e48 | 7019 | return PTR_ERR(wdev); |
4c476991 | 7020 | } |
89a54e48 | 7021 | |
89a54e48 JB |
7022 | dev = wdev->netdev; |
7023 | rdev = wiphy_to_dev(wdev->wiphy); | |
7024 | ||
1bf614ef JB |
7025 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
7026 | if (!dev) { | |
7027 | mutex_unlock(&cfg80211_mutex); | |
7028 | if (rtnl) | |
7029 | rtnl_unlock(); | |
7030 | return -EINVAL; | |
7031 | } | |
7032 | ||
7033 | info->user_ptr[1] = dev; | |
7034 | } else { | |
7035 | info->user_ptr[1] = wdev; | |
41265714 | 7036 | } |
1bf614ef JB |
7037 | |
7038 | if (dev) { | |
7039 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
7040 | !netif_running(dev)) { | |
7041 | mutex_unlock(&cfg80211_mutex); | |
7042 | if (rtnl) | |
7043 | rtnl_unlock(); | |
7044 | return -ENETDOWN; | |
7045 | } | |
7046 | ||
7047 | dev_hold(dev); | |
98104fde JB |
7048 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
7049 | if (!wdev->p2p_started) { | |
7050 | mutex_unlock(&cfg80211_mutex); | |
7051 | if (rtnl) | |
7052 | rtnl_unlock(); | |
7053 | return -ENETDOWN; | |
7054 | } | |
41265714 | 7055 | } |
89a54e48 | 7056 | |
89a54e48 JB |
7057 | cfg80211_lock_rdev(rdev); |
7058 | ||
7059 | mutex_unlock(&cfg80211_mutex); | |
7060 | ||
4c476991 | 7061 | info->user_ptr[0] = rdev; |
4c476991 JB |
7062 | } |
7063 | ||
7064 | return 0; | |
7065 | } | |
7066 | ||
7067 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
7068 | struct genl_info *info) | |
7069 | { | |
7070 | if (info->user_ptr[0]) | |
7071 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
1bf614ef JB |
7072 | if (info->user_ptr[1]) { |
7073 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
7074 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7075 | ||
7076 | if (wdev->netdev) | |
7077 | dev_put(wdev->netdev); | |
7078 | } else { | |
7079 | dev_put(info->user_ptr[1]); | |
7080 | } | |
7081 | } | |
4c476991 JB |
7082 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
7083 | rtnl_unlock(); | |
7084 | } | |
7085 | ||
55682965 JB |
7086 | static struct genl_ops nl80211_ops[] = { |
7087 | { | |
7088 | .cmd = NL80211_CMD_GET_WIPHY, | |
7089 | .doit = nl80211_get_wiphy, | |
7090 | .dumpit = nl80211_dump_wiphy, | |
7091 | .policy = nl80211_policy, | |
7092 | /* can be retrieved by unprivileged users */ | |
4c476991 | 7093 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
7094 | }, |
7095 | { | |
7096 | .cmd = NL80211_CMD_SET_WIPHY, | |
7097 | .doit = nl80211_set_wiphy, | |
7098 | .policy = nl80211_policy, | |
7099 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 7100 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
7101 | }, |
7102 | { | |
7103 | .cmd = NL80211_CMD_GET_INTERFACE, | |
7104 | .doit = nl80211_get_interface, | |
7105 | .dumpit = nl80211_dump_interface, | |
7106 | .policy = nl80211_policy, | |
7107 | /* can be retrieved by unprivileged users */ | |
72fb2abc | 7108 | .internal_flags = NL80211_FLAG_NEED_WDEV, |
55682965 JB |
7109 | }, |
7110 | { | |
7111 | .cmd = NL80211_CMD_SET_INTERFACE, | |
7112 | .doit = nl80211_set_interface, | |
7113 | .policy = nl80211_policy, | |
7114 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7115 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7116 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
7117 | }, |
7118 | { | |
7119 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
7120 | .doit = nl80211_new_interface, | |
7121 | .policy = nl80211_policy, | |
7122 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7123 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7124 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
7125 | }, |
7126 | { | |
7127 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
7128 | .doit = nl80211_del_interface, | |
7129 | .policy = nl80211_policy, | |
41ade00f | 7130 | .flags = GENL_ADMIN_PERM, |
84efbb84 | 7131 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 7132 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7133 | }, |
7134 | { | |
7135 | .cmd = NL80211_CMD_GET_KEY, | |
7136 | .doit = nl80211_get_key, | |
7137 | .policy = nl80211_policy, | |
7138 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7139 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7140 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7141 | }, |
7142 | { | |
7143 | .cmd = NL80211_CMD_SET_KEY, | |
7144 | .doit = nl80211_set_key, | |
7145 | .policy = nl80211_policy, | |
7146 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7147 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7148 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7149 | }, |
7150 | { | |
7151 | .cmd = NL80211_CMD_NEW_KEY, | |
7152 | .doit = nl80211_new_key, | |
7153 | .policy = nl80211_policy, | |
7154 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7155 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7156 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7157 | }, |
7158 | { | |
7159 | .cmd = NL80211_CMD_DEL_KEY, | |
7160 | .doit = nl80211_del_key, | |
7161 | .policy = nl80211_policy, | |
55682965 | 7162 | .flags = GENL_ADMIN_PERM, |
41265714 | 7163 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7164 | NL80211_FLAG_NEED_RTNL, |
55682965 | 7165 | }, |
ed1b6cc7 JB |
7166 | { |
7167 | .cmd = NL80211_CMD_SET_BEACON, | |
7168 | .policy = nl80211_policy, | |
7169 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7170 | .doit = nl80211_set_beacon, |
2b5f8b0b | 7171 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7172 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
7173 | }, |
7174 | { | |
8860020e | 7175 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
7176 | .policy = nl80211_policy, |
7177 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7178 | .doit = nl80211_start_ap, |
2b5f8b0b | 7179 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7180 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
7181 | }, |
7182 | { | |
8860020e | 7183 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
7184 | .policy = nl80211_policy, |
7185 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7186 | .doit = nl80211_stop_ap, |
2b5f8b0b | 7187 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7188 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 7189 | }, |
5727ef1b JB |
7190 | { |
7191 | .cmd = NL80211_CMD_GET_STATION, | |
7192 | .doit = nl80211_get_station, | |
2ec600d6 | 7193 | .dumpit = nl80211_dump_station, |
5727ef1b | 7194 | .policy = nl80211_policy, |
4c476991 JB |
7195 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7196 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
7197 | }, |
7198 | { | |
7199 | .cmd = NL80211_CMD_SET_STATION, | |
7200 | .doit = nl80211_set_station, | |
7201 | .policy = nl80211_policy, | |
7202 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7203 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7204 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
7205 | }, |
7206 | { | |
7207 | .cmd = NL80211_CMD_NEW_STATION, | |
7208 | .doit = nl80211_new_station, | |
7209 | .policy = nl80211_policy, | |
7210 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7211 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7212 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
7213 | }, |
7214 | { | |
7215 | .cmd = NL80211_CMD_DEL_STATION, | |
7216 | .doit = nl80211_del_station, | |
7217 | .policy = nl80211_policy, | |
2ec600d6 | 7218 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7219 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7220 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7221 | }, |
7222 | { | |
7223 | .cmd = NL80211_CMD_GET_MPATH, | |
7224 | .doit = nl80211_get_mpath, | |
7225 | .dumpit = nl80211_dump_mpath, | |
7226 | .policy = nl80211_policy, | |
7227 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7228 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7229 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7230 | }, |
7231 | { | |
7232 | .cmd = NL80211_CMD_SET_MPATH, | |
7233 | .doit = nl80211_set_mpath, | |
7234 | .policy = nl80211_policy, | |
7235 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7236 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7237 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7238 | }, |
7239 | { | |
7240 | .cmd = NL80211_CMD_NEW_MPATH, | |
7241 | .doit = nl80211_new_mpath, | |
7242 | .policy = nl80211_policy, | |
7243 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7244 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7245 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7246 | }, |
7247 | { | |
7248 | .cmd = NL80211_CMD_DEL_MPATH, | |
7249 | .doit = nl80211_del_mpath, | |
7250 | .policy = nl80211_policy, | |
9f1ba906 | 7251 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7252 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7253 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
7254 | }, |
7255 | { | |
7256 | .cmd = NL80211_CMD_SET_BSS, | |
7257 | .doit = nl80211_set_bss, | |
7258 | .policy = nl80211_policy, | |
b2e1b302 | 7259 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7260 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7261 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 7262 | }, |
f130347c LR |
7263 | { |
7264 | .cmd = NL80211_CMD_GET_REG, | |
7265 | .doit = nl80211_get_reg, | |
7266 | .policy = nl80211_policy, | |
7267 | /* can be retrieved by unprivileged users */ | |
7268 | }, | |
b2e1b302 LR |
7269 | { |
7270 | .cmd = NL80211_CMD_SET_REG, | |
7271 | .doit = nl80211_set_reg, | |
7272 | .policy = nl80211_policy, | |
7273 | .flags = GENL_ADMIN_PERM, | |
7274 | }, | |
7275 | { | |
7276 | .cmd = NL80211_CMD_REQ_SET_REG, | |
7277 | .doit = nl80211_req_set_reg, | |
7278 | .policy = nl80211_policy, | |
93da9cc1 | 7279 | .flags = GENL_ADMIN_PERM, |
7280 | }, | |
7281 | { | |
24bdd9f4 JC |
7282 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
7283 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 7284 | .policy = nl80211_policy, |
7285 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 7286 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7287 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 7288 | }, |
7289 | { | |
24bdd9f4 JC |
7290 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
7291 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 7292 | .policy = nl80211_policy, |
9aed3cc1 | 7293 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 7294 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7295 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 7296 | }, |
2a519311 JB |
7297 | { |
7298 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
7299 | .doit = nl80211_trigger_scan, | |
7300 | .policy = nl80211_policy, | |
7301 | .flags = GENL_ADMIN_PERM, | |
fd014284 | 7302 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7303 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
7304 | }, |
7305 | { | |
7306 | .cmd = NL80211_CMD_GET_SCAN, | |
7307 | .policy = nl80211_policy, | |
7308 | .dumpit = nl80211_dump_scan, | |
7309 | }, | |
807f8a8c LC |
7310 | { |
7311 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
7312 | .doit = nl80211_start_sched_scan, | |
7313 | .policy = nl80211_policy, | |
7314 | .flags = GENL_ADMIN_PERM, | |
7315 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7316 | NL80211_FLAG_NEED_RTNL, | |
7317 | }, | |
7318 | { | |
7319 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
7320 | .doit = nl80211_stop_sched_scan, | |
7321 | .policy = nl80211_policy, | |
7322 | .flags = GENL_ADMIN_PERM, | |
7323 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7324 | NL80211_FLAG_NEED_RTNL, | |
7325 | }, | |
636a5d36 JM |
7326 | { |
7327 | .cmd = NL80211_CMD_AUTHENTICATE, | |
7328 | .doit = nl80211_authenticate, | |
7329 | .policy = nl80211_policy, | |
7330 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7331 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7332 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7333 | }, |
7334 | { | |
7335 | .cmd = NL80211_CMD_ASSOCIATE, | |
7336 | .doit = nl80211_associate, | |
7337 | .policy = nl80211_policy, | |
7338 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7339 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7340 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7341 | }, |
7342 | { | |
7343 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
7344 | .doit = nl80211_deauthenticate, | |
7345 | .policy = nl80211_policy, | |
7346 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7347 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7348 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7349 | }, |
7350 | { | |
7351 | .cmd = NL80211_CMD_DISASSOCIATE, | |
7352 | .doit = nl80211_disassociate, | |
7353 | .policy = nl80211_policy, | |
7354 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7355 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7356 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 7357 | }, |
04a773ad JB |
7358 | { |
7359 | .cmd = NL80211_CMD_JOIN_IBSS, | |
7360 | .doit = nl80211_join_ibss, | |
7361 | .policy = nl80211_policy, | |
7362 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7363 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7364 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
7365 | }, |
7366 | { | |
7367 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
7368 | .doit = nl80211_leave_ibss, | |
7369 | .policy = nl80211_policy, | |
7370 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7371 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7372 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 7373 | }, |
aff89a9b JB |
7374 | #ifdef CONFIG_NL80211_TESTMODE |
7375 | { | |
7376 | .cmd = NL80211_CMD_TESTMODE, | |
7377 | .doit = nl80211_testmode_do, | |
71063f0e | 7378 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
7379 | .policy = nl80211_policy, |
7380 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7381 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7382 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
7383 | }, |
7384 | #endif | |
b23aa676 SO |
7385 | { |
7386 | .cmd = NL80211_CMD_CONNECT, | |
7387 | .doit = nl80211_connect, | |
7388 | .policy = nl80211_policy, | |
7389 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7390 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7391 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
7392 | }, |
7393 | { | |
7394 | .cmd = NL80211_CMD_DISCONNECT, | |
7395 | .doit = nl80211_disconnect, | |
7396 | .policy = nl80211_policy, | |
7397 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7398 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7399 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 7400 | }, |
463d0183 JB |
7401 | { |
7402 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
7403 | .doit = nl80211_wiphy_netns, | |
7404 | .policy = nl80211_policy, | |
7405 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7406 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7407 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 7408 | }, |
61fa713c HS |
7409 | { |
7410 | .cmd = NL80211_CMD_GET_SURVEY, | |
7411 | .policy = nl80211_policy, | |
7412 | .dumpit = nl80211_dump_survey, | |
7413 | }, | |
67fbb16b SO |
7414 | { |
7415 | .cmd = NL80211_CMD_SET_PMKSA, | |
7416 | .doit = nl80211_setdel_pmksa, | |
7417 | .policy = nl80211_policy, | |
7418 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7419 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7420 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
7421 | }, |
7422 | { | |
7423 | .cmd = NL80211_CMD_DEL_PMKSA, | |
7424 | .doit = nl80211_setdel_pmksa, | |
7425 | .policy = nl80211_policy, | |
7426 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7427 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7428 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
7429 | }, |
7430 | { | |
7431 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
7432 | .doit = nl80211_flush_pmksa, | |
7433 | .policy = nl80211_policy, | |
7434 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7435 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7436 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 7437 | }, |
9588bbd5 JM |
7438 | { |
7439 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
7440 | .doit = nl80211_remain_on_channel, | |
7441 | .policy = nl80211_policy, | |
7442 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 7443 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7444 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
7445 | }, |
7446 | { | |
7447 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
7448 | .doit = nl80211_cancel_remain_on_channel, | |
7449 | .policy = nl80211_policy, | |
7450 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 7451 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7452 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 7453 | }, |
13ae75b1 JM |
7454 | { |
7455 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
7456 | .doit = nl80211_set_tx_bitrate_mask, | |
7457 | .policy = nl80211_policy, | |
7458 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7459 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7460 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 7461 | }, |
026331c4 | 7462 | { |
2e161f78 JB |
7463 | .cmd = NL80211_CMD_REGISTER_FRAME, |
7464 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
7465 | .policy = nl80211_policy, |
7466 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 7467 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 7468 | NL80211_FLAG_NEED_RTNL, |
026331c4 JM |
7469 | }, |
7470 | { | |
2e161f78 JB |
7471 | .cmd = NL80211_CMD_FRAME, |
7472 | .doit = nl80211_tx_mgmt, | |
026331c4 | 7473 | .policy = nl80211_policy, |
f7ca38df | 7474 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 7475 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
f7ca38df JB |
7476 | NL80211_FLAG_NEED_RTNL, |
7477 | }, | |
7478 | { | |
7479 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
7480 | .doit = nl80211_tx_mgmt_cancel_wait, | |
7481 | .policy = nl80211_policy, | |
026331c4 | 7482 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 7483 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7484 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 7485 | }, |
ffb9eb3d KV |
7486 | { |
7487 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
7488 | .doit = nl80211_set_power_save, | |
7489 | .policy = nl80211_policy, | |
7490 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7491 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7492 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
7493 | }, |
7494 | { | |
7495 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
7496 | .doit = nl80211_get_power_save, | |
7497 | .policy = nl80211_policy, | |
7498 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
7499 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7500 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 7501 | }, |
d6dc1a38 JO |
7502 | { |
7503 | .cmd = NL80211_CMD_SET_CQM, | |
7504 | .doit = nl80211_set_cqm, | |
7505 | .policy = nl80211_policy, | |
7506 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7507 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7508 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 7509 | }, |
f444de05 JB |
7510 | { |
7511 | .cmd = NL80211_CMD_SET_CHANNEL, | |
7512 | .doit = nl80211_set_channel, | |
7513 | .policy = nl80211_policy, | |
7514 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7515 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7516 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 7517 | }, |
e8347eba BJ |
7518 | { |
7519 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
7520 | .doit = nl80211_set_wds_peer, | |
7521 | .policy = nl80211_policy, | |
7522 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
7523 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7524 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 7525 | }, |
29cbe68c JB |
7526 | { |
7527 | .cmd = NL80211_CMD_JOIN_MESH, | |
7528 | .doit = nl80211_join_mesh, | |
7529 | .policy = nl80211_policy, | |
7530 | .flags = GENL_ADMIN_PERM, | |
7531 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7532 | NL80211_FLAG_NEED_RTNL, | |
7533 | }, | |
7534 | { | |
7535 | .cmd = NL80211_CMD_LEAVE_MESH, | |
7536 | .doit = nl80211_leave_mesh, | |
7537 | .policy = nl80211_policy, | |
7538 | .flags = GENL_ADMIN_PERM, | |
7539 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7540 | NL80211_FLAG_NEED_RTNL, | |
7541 | }, | |
dfb89c56 | 7542 | #ifdef CONFIG_PM |
ff1b6e69 JB |
7543 | { |
7544 | .cmd = NL80211_CMD_GET_WOWLAN, | |
7545 | .doit = nl80211_get_wowlan, | |
7546 | .policy = nl80211_policy, | |
7547 | /* can be retrieved by unprivileged users */ | |
7548 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7549 | NL80211_FLAG_NEED_RTNL, | |
7550 | }, | |
7551 | { | |
7552 | .cmd = NL80211_CMD_SET_WOWLAN, | |
7553 | .doit = nl80211_set_wowlan, | |
7554 | .policy = nl80211_policy, | |
7555 | .flags = GENL_ADMIN_PERM, | |
7556 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7557 | NL80211_FLAG_NEED_RTNL, | |
7558 | }, | |
dfb89c56 | 7559 | #endif |
e5497d76 JB |
7560 | { |
7561 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
7562 | .doit = nl80211_set_rekey_data, | |
7563 | .policy = nl80211_policy, | |
7564 | .flags = GENL_ADMIN_PERM, | |
7565 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7566 | NL80211_FLAG_NEED_RTNL, | |
7567 | }, | |
109086ce AN |
7568 | { |
7569 | .cmd = NL80211_CMD_TDLS_MGMT, | |
7570 | .doit = nl80211_tdls_mgmt, | |
7571 | .policy = nl80211_policy, | |
7572 | .flags = GENL_ADMIN_PERM, | |
7573 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7574 | NL80211_FLAG_NEED_RTNL, | |
7575 | }, | |
7576 | { | |
7577 | .cmd = NL80211_CMD_TDLS_OPER, | |
7578 | .doit = nl80211_tdls_oper, | |
7579 | .policy = nl80211_policy, | |
7580 | .flags = GENL_ADMIN_PERM, | |
7581 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7582 | NL80211_FLAG_NEED_RTNL, | |
7583 | }, | |
28946da7 JB |
7584 | { |
7585 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
7586 | .doit = nl80211_register_unexpected_frame, | |
7587 | .policy = nl80211_policy, | |
7588 | .flags = GENL_ADMIN_PERM, | |
7589 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7590 | NL80211_FLAG_NEED_RTNL, | |
7591 | }, | |
7f6cf311 JB |
7592 | { |
7593 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
7594 | .doit = nl80211_probe_client, | |
7595 | .policy = nl80211_policy, | |
7596 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7597 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
7598 | NL80211_FLAG_NEED_RTNL, |
7599 | }, | |
5e760230 JB |
7600 | { |
7601 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
7602 | .doit = nl80211_register_beacons, | |
7603 | .policy = nl80211_policy, | |
7604 | .flags = GENL_ADMIN_PERM, | |
7605 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7606 | NL80211_FLAG_NEED_RTNL, | |
7607 | }, | |
1d9d9213 SW |
7608 | { |
7609 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
7610 | .doit = nl80211_set_noack_map, | |
7611 | .policy = nl80211_policy, | |
7612 | .flags = GENL_ADMIN_PERM, | |
7613 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7614 | NL80211_FLAG_NEED_RTNL, | |
7615 | }, | |
98104fde JB |
7616 | { |
7617 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
7618 | .doit = nl80211_start_p2p_device, | |
7619 | .policy = nl80211_policy, | |
7620 | .flags = GENL_ADMIN_PERM, | |
7621 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
7622 | NL80211_FLAG_NEED_RTNL, | |
7623 | }, | |
7624 | { | |
7625 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
7626 | .doit = nl80211_stop_p2p_device, | |
7627 | .policy = nl80211_policy, | |
7628 | .flags = GENL_ADMIN_PERM, | |
7629 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7630 | NL80211_FLAG_NEED_RTNL, | |
7631 | }, | |
55682965 | 7632 | }; |
9588bbd5 | 7633 | |
6039f6d2 JM |
7634 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
7635 | .name = "mlme", | |
7636 | }; | |
55682965 JB |
7637 | |
7638 | /* multicast groups */ | |
7639 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
7640 | .name = "config", | |
7641 | }; | |
2a519311 JB |
7642 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
7643 | .name = "scan", | |
7644 | }; | |
73d54c9e LR |
7645 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
7646 | .name = "regulatory", | |
7647 | }; | |
55682965 JB |
7648 | |
7649 | /* notification functions */ | |
7650 | ||
7651 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
7652 | { | |
7653 | struct sk_buff *msg; | |
7654 | ||
fd2120ca | 7655 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
7656 | if (!msg) |
7657 | return; | |
7658 | ||
7659 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
7660 | nlmsg_free(msg); | |
7661 | return; | |
7662 | } | |
7663 | ||
463d0183 JB |
7664 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7665 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
7666 | } |
7667 | ||
362a415d JB |
7668 | static int nl80211_add_scan_req(struct sk_buff *msg, |
7669 | struct cfg80211_registered_device *rdev) | |
7670 | { | |
7671 | struct cfg80211_scan_request *req = rdev->scan_req; | |
7672 | struct nlattr *nest; | |
7673 | int i; | |
7674 | ||
667503dd JB |
7675 | ASSERT_RDEV_LOCK(rdev); |
7676 | ||
362a415d JB |
7677 | if (WARN_ON(!req)) |
7678 | return 0; | |
7679 | ||
7680 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
7681 | if (!nest) | |
7682 | goto nla_put_failure; | |
9360ffd1 DM |
7683 | for (i = 0; i < req->n_ssids; i++) { |
7684 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
7685 | goto nla_put_failure; | |
7686 | } | |
362a415d JB |
7687 | nla_nest_end(msg, nest); |
7688 | ||
7689 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
7690 | if (!nest) | |
7691 | goto nla_put_failure; | |
9360ffd1 DM |
7692 | for (i = 0; i < req->n_channels; i++) { |
7693 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
7694 | goto nla_put_failure; | |
7695 | } | |
362a415d JB |
7696 | nla_nest_end(msg, nest); |
7697 | ||
9360ffd1 DM |
7698 | if (req->ie && |
7699 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
7700 | goto nla_put_failure; | |
362a415d | 7701 | |
ed473771 SL |
7702 | if (req->flags) |
7703 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags); | |
7704 | ||
362a415d JB |
7705 | return 0; |
7706 | nla_put_failure: | |
7707 | return -ENOBUFS; | |
7708 | } | |
7709 | ||
a538e2d5 JB |
7710 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
7711 | struct cfg80211_registered_device *rdev, | |
fd014284 | 7712 | struct wireless_dev *wdev, |
15e47304 | 7713 | u32 portid, u32 seq, int flags, |
a538e2d5 | 7714 | u32 cmd) |
2a519311 JB |
7715 | { |
7716 | void *hdr; | |
7717 | ||
15e47304 | 7718 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
2a519311 JB |
7719 | if (!hdr) |
7720 | return -1; | |
7721 | ||
9360ffd1 | 7722 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
fd014284 JB |
7723 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
7724 | wdev->netdev->ifindex)) || | |
7725 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9360ffd1 | 7726 | goto nla_put_failure; |
2a519311 | 7727 | |
362a415d JB |
7728 | /* ignore errors and send incomplete event anyway */ |
7729 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
7730 | |
7731 | return genlmsg_end(msg, hdr); | |
7732 | ||
7733 | nla_put_failure: | |
7734 | genlmsg_cancel(msg, hdr); | |
7735 | return -EMSGSIZE; | |
7736 | } | |
7737 | ||
807f8a8c LC |
7738 | static int |
7739 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
7740 | struct cfg80211_registered_device *rdev, | |
7741 | struct net_device *netdev, | |
15e47304 | 7742 | u32 portid, u32 seq, int flags, u32 cmd) |
807f8a8c LC |
7743 | { |
7744 | void *hdr; | |
7745 | ||
15e47304 | 7746 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
807f8a8c LC |
7747 | if (!hdr) |
7748 | return -1; | |
7749 | ||
9360ffd1 DM |
7750 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7751 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
7752 | goto nla_put_failure; | |
807f8a8c LC |
7753 | |
7754 | return genlmsg_end(msg, hdr); | |
7755 | ||
7756 | nla_put_failure: | |
7757 | genlmsg_cancel(msg, hdr); | |
7758 | return -EMSGSIZE; | |
7759 | } | |
7760 | ||
a538e2d5 | 7761 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
fd014284 | 7762 | struct wireless_dev *wdev) |
a538e2d5 JB |
7763 | { |
7764 | struct sk_buff *msg; | |
7765 | ||
58050fce | 7766 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
a538e2d5 JB |
7767 | if (!msg) |
7768 | return; | |
7769 | ||
fd014284 | 7770 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 JB |
7771 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
7772 | nlmsg_free(msg); | |
7773 | return; | |
7774 | } | |
7775 | ||
463d0183 JB |
7776 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7777 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
7778 | } |
7779 | ||
2a519311 | 7780 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
fd014284 | 7781 | struct wireless_dev *wdev) |
2a519311 JB |
7782 | { |
7783 | struct sk_buff *msg; | |
7784 | ||
fd2120ca | 7785 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7786 | if (!msg) |
7787 | return; | |
7788 | ||
fd014284 | 7789 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 | 7790 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { |
2a519311 JB |
7791 | nlmsg_free(msg); |
7792 | return; | |
7793 | } | |
7794 | ||
463d0183 JB |
7795 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7796 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7797 | } |
7798 | ||
7799 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
fd014284 | 7800 | struct wireless_dev *wdev) |
2a519311 JB |
7801 | { |
7802 | struct sk_buff *msg; | |
7803 | ||
fd2120ca | 7804 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7805 | if (!msg) |
7806 | return; | |
7807 | ||
fd014284 | 7808 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 | 7809 | NL80211_CMD_SCAN_ABORTED) < 0) { |
2a519311 JB |
7810 | nlmsg_free(msg); |
7811 | return; | |
7812 | } | |
7813 | ||
463d0183 JB |
7814 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7815 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7816 | } |
7817 | ||
807f8a8c LC |
7818 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
7819 | struct net_device *netdev) | |
7820 | { | |
7821 | struct sk_buff *msg; | |
7822 | ||
7823 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7824 | if (!msg) | |
7825 | return; | |
7826 | ||
7827 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
7828 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
7829 | nlmsg_free(msg); | |
7830 | return; | |
7831 | } | |
7832 | ||
7833 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7834 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7835 | } | |
7836 | ||
7837 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
7838 | struct net_device *netdev, u32 cmd) | |
7839 | { | |
7840 | struct sk_buff *msg; | |
7841 | ||
58050fce | 7842 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
807f8a8c LC |
7843 | if (!msg) |
7844 | return; | |
7845 | ||
7846 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
7847 | nlmsg_free(msg); | |
7848 | return; | |
7849 | } | |
7850 | ||
7851 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7852 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7853 | } | |
7854 | ||
73d54c9e LR |
7855 | /* |
7856 | * This can happen on global regulatory changes or device specific settings | |
7857 | * based on custom world regulatory domains. | |
7858 | */ | |
7859 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
7860 | { | |
7861 | struct sk_buff *msg; | |
7862 | void *hdr; | |
7863 | ||
fd2120ca | 7864 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
7865 | if (!msg) |
7866 | return; | |
7867 | ||
7868 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
7869 | if (!hdr) { | |
7870 | nlmsg_free(msg); | |
7871 | return; | |
7872 | } | |
7873 | ||
7874 | /* Userspace can always count this one always being set */ | |
9360ffd1 DM |
7875 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
7876 | goto nla_put_failure; | |
7877 | ||
7878 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
7879 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7880 | NL80211_REGDOM_TYPE_WORLD)) | |
7881 | goto nla_put_failure; | |
7882 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
7883 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7884 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
7885 | goto nla_put_failure; | |
7886 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
7887 | request->intersect) { | |
7888 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7889 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
7890 | goto nla_put_failure; | |
7891 | } else { | |
7892 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7893 | NL80211_REGDOM_TYPE_COUNTRY) || | |
7894 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
7895 | request->alpha2)) | |
7896 | goto nla_put_failure; | |
7897 | } | |
7898 | ||
7899 | if (wiphy_idx_valid(request->wiphy_idx) && | |
7900 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
7901 | goto nla_put_failure; | |
73d54c9e | 7902 | |
3b7b72ee | 7903 | genlmsg_end(msg, hdr); |
73d54c9e | 7904 | |
bc43b28c | 7905 | rcu_read_lock(); |
463d0183 | 7906 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
7907 | GFP_ATOMIC); |
7908 | rcu_read_unlock(); | |
73d54c9e LR |
7909 | |
7910 | return; | |
7911 | ||
7912 | nla_put_failure: | |
7913 | genlmsg_cancel(msg, hdr); | |
7914 | nlmsg_free(msg); | |
7915 | } | |
7916 | ||
6039f6d2 JM |
7917 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
7918 | struct net_device *netdev, | |
7919 | const u8 *buf, size_t len, | |
e6d6e342 | 7920 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
7921 | { |
7922 | struct sk_buff *msg; | |
7923 | void *hdr; | |
7924 | ||
e6d6e342 | 7925 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
7926 | if (!msg) |
7927 | return; | |
7928 | ||
7929 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7930 | if (!hdr) { | |
7931 | nlmsg_free(msg); | |
7932 | return; | |
7933 | } | |
7934 | ||
9360ffd1 DM |
7935 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7936 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7937 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
7938 | goto nla_put_failure; | |
6039f6d2 | 7939 | |
3b7b72ee | 7940 | genlmsg_end(msg, hdr); |
6039f6d2 | 7941 | |
463d0183 JB |
7942 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7943 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
7944 | return; |
7945 | ||
7946 | nla_put_failure: | |
7947 | genlmsg_cancel(msg, hdr); | |
7948 | nlmsg_free(msg); | |
7949 | } | |
7950 | ||
7951 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7952 | struct net_device *netdev, const u8 *buf, |
7953 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7954 | { |
7955 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7956 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
7957 | } |
7958 | ||
7959 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
7960 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7961 | size_t len, gfp_t gfp) |
6039f6d2 | 7962 | { |
e6d6e342 JB |
7963 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
7964 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
7965 | } |
7966 | ||
53b46b84 | 7967 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
7968 | struct net_device *netdev, const u8 *buf, |
7969 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7970 | { |
7971 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7972 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
7973 | } |
7974 | ||
53b46b84 JM |
7975 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
7976 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7977 | size_t len, gfp_t gfp) |
6039f6d2 JM |
7978 | { |
7979 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7980 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
7981 | } |
7982 | ||
cf4e594e JM |
7983 | void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, |
7984 | struct net_device *netdev, const u8 *buf, | |
7985 | size_t len, gfp_t gfp) | |
7986 | { | |
7987 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7988 | NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); | |
7989 | } | |
7990 | ||
7991 | void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, | |
7992 | struct net_device *netdev, const u8 *buf, | |
7993 | size_t len, gfp_t gfp) | |
7994 | { | |
7995 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7996 | NL80211_CMD_UNPROT_DISASSOCIATE, gfp); | |
7997 | } | |
7998 | ||
1b06bb40 LR |
7999 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
8000 | struct net_device *netdev, int cmd, | |
e6d6e342 | 8001 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
8002 | { |
8003 | struct sk_buff *msg; | |
8004 | void *hdr; | |
8005 | ||
e6d6e342 | 8006 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
8007 | if (!msg) |
8008 | return; | |
8009 | ||
8010 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8011 | if (!hdr) { | |
8012 | nlmsg_free(msg); | |
8013 | return; | |
8014 | } | |
8015 | ||
9360ffd1 DM |
8016 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8017 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8018 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
8019 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8020 | goto nla_put_failure; | |
1965c853 | 8021 | |
3b7b72ee | 8022 | genlmsg_end(msg, hdr); |
1965c853 | 8023 | |
463d0183 JB |
8024 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8025 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
8026 | return; |
8027 | ||
8028 | nla_put_failure: | |
8029 | genlmsg_cancel(msg, hdr); | |
8030 | nlmsg_free(msg); | |
8031 | } | |
8032 | ||
8033 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8034 | struct net_device *netdev, const u8 *addr, |
8035 | gfp_t gfp) | |
1965c853 JM |
8036 | { |
8037 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 8038 | addr, gfp); |
1965c853 JM |
8039 | } |
8040 | ||
8041 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8042 | struct net_device *netdev, const u8 *addr, |
8043 | gfp_t gfp) | |
1965c853 | 8044 | { |
e6d6e342 JB |
8045 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
8046 | addr, gfp); | |
1965c853 JM |
8047 | } |
8048 | ||
b23aa676 SO |
8049 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
8050 | struct net_device *netdev, const u8 *bssid, | |
8051 | const u8 *req_ie, size_t req_ie_len, | |
8052 | const u8 *resp_ie, size_t resp_ie_len, | |
8053 | u16 status, gfp_t gfp) | |
8054 | { | |
8055 | struct sk_buff *msg; | |
8056 | void *hdr; | |
8057 | ||
58050fce | 8058 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
8059 | if (!msg) |
8060 | return; | |
8061 | ||
8062 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
8063 | if (!hdr) { | |
8064 | nlmsg_free(msg); | |
8065 | return; | |
8066 | } | |
8067 | ||
9360ffd1 DM |
8068 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8069 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8070 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
8071 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
8072 | (req_ie && | |
8073 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8074 | (resp_ie && | |
8075 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8076 | goto nla_put_failure; | |
b23aa676 | 8077 | |
3b7b72ee | 8078 | genlmsg_end(msg, hdr); |
b23aa676 | 8079 | |
463d0183 JB |
8080 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8081 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
8082 | return; |
8083 | ||
8084 | nla_put_failure: | |
8085 | genlmsg_cancel(msg, hdr); | |
8086 | nlmsg_free(msg); | |
8087 | ||
8088 | } | |
8089 | ||
8090 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
8091 | struct net_device *netdev, const u8 *bssid, | |
8092 | const u8 *req_ie, size_t req_ie_len, | |
8093 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
8094 | { | |
8095 | struct sk_buff *msg; | |
8096 | void *hdr; | |
8097 | ||
58050fce | 8098 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
8099 | if (!msg) |
8100 | return; | |
8101 | ||
8102 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
8103 | if (!hdr) { | |
8104 | nlmsg_free(msg); | |
8105 | return; | |
8106 | } | |
8107 | ||
9360ffd1 DM |
8108 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8109 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8110 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
8111 | (req_ie && | |
8112 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8113 | (resp_ie && | |
8114 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8115 | goto nla_put_failure; | |
b23aa676 | 8116 | |
3b7b72ee | 8117 | genlmsg_end(msg, hdr); |
b23aa676 | 8118 | |
463d0183 JB |
8119 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8120 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
8121 | return; |
8122 | ||
8123 | nla_put_failure: | |
8124 | genlmsg_cancel(msg, hdr); | |
8125 | nlmsg_free(msg); | |
8126 | ||
8127 | } | |
8128 | ||
8129 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
8130 | struct net_device *netdev, u16 reason, | |
667503dd | 8131 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
8132 | { |
8133 | struct sk_buff *msg; | |
8134 | void *hdr; | |
8135 | ||
58050fce | 8136 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
b23aa676 SO |
8137 | if (!msg) |
8138 | return; | |
8139 | ||
8140 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
8141 | if (!hdr) { | |
8142 | nlmsg_free(msg); | |
8143 | return; | |
8144 | } | |
8145 | ||
9360ffd1 DM |
8146 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8147 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8148 | (from_ap && reason && | |
8149 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
8150 | (from_ap && | |
8151 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
8152 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
8153 | goto nla_put_failure; | |
b23aa676 | 8154 | |
3b7b72ee | 8155 | genlmsg_end(msg, hdr); |
b23aa676 | 8156 | |
463d0183 JB |
8157 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8158 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
8159 | return; |
8160 | ||
8161 | nla_put_failure: | |
8162 | genlmsg_cancel(msg, hdr); | |
8163 | nlmsg_free(msg); | |
8164 | ||
8165 | } | |
8166 | ||
04a773ad JB |
8167 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
8168 | struct net_device *netdev, const u8 *bssid, | |
8169 | gfp_t gfp) | |
8170 | { | |
8171 | struct sk_buff *msg; | |
8172 | void *hdr; | |
8173 | ||
fd2120ca | 8174 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
8175 | if (!msg) |
8176 | return; | |
8177 | ||
8178 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
8179 | if (!hdr) { | |
8180 | nlmsg_free(msg); | |
8181 | return; | |
8182 | } | |
8183 | ||
9360ffd1 DM |
8184 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8185 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8186 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8187 | goto nla_put_failure; | |
04a773ad | 8188 | |
3b7b72ee | 8189 | genlmsg_end(msg, hdr); |
04a773ad | 8190 | |
463d0183 JB |
8191 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8192 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
8193 | return; |
8194 | ||
8195 | nla_put_failure: | |
8196 | genlmsg_cancel(msg, hdr); | |
8197 | nlmsg_free(msg); | |
8198 | } | |
8199 | ||
c93b5e71 JC |
8200 | void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev, |
8201 | struct net_device *netdev, | |
8202 | const u8 *macaddr, const u8* ie, u8 ie_len, | |
8203 | gfp_t gfp) | |
8204 | { | |
8205 | struct sk_buff *msg; | |
8206 | void *hdr; | |
8207 | ||
8208 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8209 | if (!msg) | |
8210 | return; | |
8211 | ||
8212 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
8213 | if (!hdr) { | |
8214 | nlmsg_free(msg); | |
8215 | return; | |
8216 | } | |
8217 | ||
9360ffd1 DM |
8218 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8219 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8220 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) || | |
8221 | (ie_len && ie && | |
8222 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
8223 | goto nla_put_failure; | |
c93b5e71 | 8224 | |
3b7b72ee | 8225 | genlmsg_end(msg, hdr); |
c93b5e71 JC |
8226 | |
8227 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8228 | nl80211_mlme_mcgrp.id, gfp); | |
8229 | return; | |
8230 | ||
8231 | nla_put_failure: | |
8232 | genlmsg_cancel(msg, hdr); | |
8233 | nlmsg_free(msg); | |
8234 | } | |
8235 | ||
a3b8b056 JM |
8236 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
8237 | struct net_device *netdev, const u8 *addr, | |
8238 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 8239 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
8240 | { |
8241 | struct sk_buff *msg; | |
8242 | void *hdr; | |
8243 | ||
e6d6e342 | 8244 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
8245 | if (!msg) |
8246 | return; | |
8247 | ||
8248 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
8249 | if (!hdr) { | |
8250 | nlmsg_free(msg); | |
8251 | return; | |
8252 | } | |
8253 | ||
9360ffd1 DM |
8254 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8255 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8256 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
8257 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
8258 | (key_id != -1 && | |
8259 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
8260 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
8261 | goto nla_put_failure; | |
a3b8b056 | 8262 | |
3b7b72ee | 8263 | genlmsg_end(msg, hdr); |
a3b8b056 | 8264 | |
463d0183 JB |
8265 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8266 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
8267 | return; |
8268 | ||
8269 | nla_put_failure: | |
8270 | genlmsg_cancel(msg, hdr); | |
8271 | nlmsg_free(msg); | |
8272 | } | |
8273 | ||
6bad8766 LR |
8274 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
8275 | struct ieee80211_channel *channel_before, | |
8276 | struct ieee80211_channel *channel_after) | |
8277 | { | |
8278 | struct sk_buff *msg; | |
8279 | void *hdr; | |
8280 | struct nlattr *nl_freq; | |
8281 | ||
fd2120ca | 8282 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
8283 | if (!msg) |
8284 | return; | |
8285 | ||
8286 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
8287 | if (!hdr) { | |
8288 | nlmsg_free(msg); | |
8289 | return; | |
8290 | } | |
8291 | ||
8292 | /* | |
8293 | * Since we are applying the beacon hint to a wiphy we know its | |
8294 | * wiphy_idx is valid | |
8295 | */ | |
9360ffd1 DM |
8296 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
8297 | goto nla_put_failure; | |
6bad8766 LR |
8298 | |
8299 | /* Before */ | |
8300 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
8301 | if (!nl_freq) | |
8302 | goto nla_put_failure; | |
8303 | if (nl80211_msg_put_channel(msg, channel_before)) | |
8304 | goto nla_put_failure; | |
8305 | nla_nest_end(msg, nl_freq); | |
8306 | ||
8307 | /* After */ | |
8308 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
8309 | if (!nl_freq) | |
8310 | goto nla_put_failure; | |
8311 | if (nl80211_msg_put_channel(msg, channel_after)) | |
8312 | goto nla_put_failure; | |
8313 | nla_nest_end(msg, nl_freq); | |
8314 | ||
3b7b72ee | 8315 | genlmsg_end(msg, hdr); |
6bad8766 | 8316 | |
463d0183 JB |
8317 | rcu_read_lock(); |
8318 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
8319 | GFP_ATOMIC); | |
8320 | rcu_read_unlock(); | |
6bad8766 LR |
8321 | |
8322 | return; | |
8323 | ||
8324 | nla_put_failure: | |
8325 | genlmsg_cancel(msg, hdr); | |
8326 | nlmsg_free(msg); | |
8327 | } | |
8328 | ||
9588bbd5 JM |
8329 | static void nl80211_send_remain_on_chan_event( |
8330 | int cmd, struct cfg80211_registered_device *rdev, | |
71bbc994 | 8331 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 JM |
8332 | struct ieee80211_channel *chan, |
8333 | enum nl80211_channel_type channel_type, | |
8334 | unsigned int duration, gfp_t gfp) | |
8335 | { | |
8336 | struct sk_buff *msg; | |
8337 | void *hdr; | |
8338 | ||
8339 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8340 | if (!msg) | |
8341 | return; | |
8342 | ||
8343 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8344 | if (!hdr) { | |
8345 | nlmsg_free(msg); | |
8346 | return; | |
8347 | } | |
8348 | ||
9360ffd1 | 8349 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
8350 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8351 | wdev->netdev->ifindex)) || | |
00f53350 | 8352 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
8353 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
8354 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) || | |
8355 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
8356 | goto nla_put_failure; | |
9588bbd5 | 8357 | |
9360ffd1 DM |
8358 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
8359 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
8360 | goto nla_put_failure; | |
9588bbd5 | 8361 | |
3b7b72ee | 8362 | genlmsg_end(msg, hdr); |
9588bbd5 JM |
8363 | |
8364 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8365 | nl80211_mlme_mcgrp.id, gfp); | |
8366 | return; | |
8367 | ||
8368 | nla_put_failure: | |
8369 | genlmsg_cancel(msg, hdr); | |
8370 | nlmsg_free(msg); | |
8371 | } | |
8372 | ||
8373 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
71bbc994 | 8374 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 JM |
8375 | struct ieee80211_channel *chan, |
8376 | enum nl80211_channel_type channel_type, | |
8377 | unsigned int duration, gfp_t gfp) | |
8378 | { | |
8379 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
71bbc994 | 8380 | rdev, wdev, cookie, chan, |
9588bbd5 JM |
8381 | channel_type, duration, gfp); |
8382 | } | |
8383 | ||
8384 | void nl80211_send_remain_on_channel_cancel( | |
71bbc994 JB |
8385 | struct cfg80211_registered_device *rdev, |
8386 | struct wireless_dev *wdev, | |
9588bbd5 JM |
8387 | u64 cookie, struct ieee80211_channel *chan, |
8388 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
8389 | { | |
8390 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
71bbc994 | 8391 | rdev, wdev, cookie, chan, |
9588bbd5 JM |
8392 | channel_type, 0, gfp); |
8393 | } | |
8394 | ||
98b62183 JB |
8395 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
8396 | struct net_device *dev, const u8 *mac_addr, | |
8397 | struct station_info *sinfo, gfp_t gfp) | |
8398 | { | |
8399 | struct sk_buff *msg; | |
8400 | ||
58050fce | 8401 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
98b62183 JB |
8402 | if (!msg) |
8403 | return; | |
8404 | ||
66266b3a JL |
8405 | if (nl80211_send_station(msg, 0, 0, 0, |
8406 | rdev, dev, mac_addr, sinfo) < 0) { | |
98b62183 JB |
8407 | nlmsg_free(msg); |
8408 | return; | |
8409 | } | |
8410 | ||
8411 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8412 | nl80211_mlme_mcgrp.id, gfp); | |
8413 | } | |
8414 | ||
ec15e68b JM |
8415 | void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev, |
8416 | struct net_device *dev, const u8 *mac_addr, | |
8417 | gfp_t gfp) | |
8418 | { | |
8419 | struct sk_buff *msg; | |
8420 | void *hdr; | |
8421 | ||
58050fce | 8422 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
ec15e68b JM |
8423 | if (!msg) |
8424 | return; | |
8425 | ||
8426 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
8427 | if (!hdr) { | |
8428 | nlmsg_free(msg); | |
8429 | return; | |
8430 | } | |
8431 | ||
9360ffd1 DM |
8432 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
8433 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
8434 | goto nla_put_failure; | |
ec15e68b | 8435 | |
3b7b72ee | 8436 | genlmsg_end(msg, hdr); |
ec15e68b JM |
8437 | |
8438 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8439 | nl80211_mlme_mcgrp.id, gfp); | |
8440 | return; | |
8441 | ||
8442 | nla_put_failure: | |
8443 | genlmsg_cancel(msg, hdr); | |
8444 | nlmsg_free(msg); | |
8445 | } | |
8446 | ||
ed44a951 PP |
8447 | void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev, |
8448 | struct net_device *dev, const u8 *mac_addr, | |
8449 | enum nl80211_connect_failed_reason reason, | |
8450 | gfp_t gfp) | |
8451 | { | |
8452 | struct sk_buff *msg; | |
8453 | void *hdr; | |
8454 | ||
8455 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8456 | if (!msg) | |
8457 | return; | |
8458 | ||
8459 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
8460 | if (!hdr) { | |
8461 | nlmsg_free(msg); | |
8462 | return; | |
8463 | } | |
8464 | ||
8465 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8466 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
8467 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
8468 | goto nla_put_failure; | |
8469 | ||
8470 | genlmsg_end(msg, hdr); | |
8471 | ||
8472 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8473 | nl80211_mlme_mcgrp.id, gfp); | |
8474 | return; | |
8475 | ||
8476 | nla_put_failure: | |
8477 | genlmsg_cancel(msg, hdr); | |
8478 | nlmsg_free(msg); | |
8479 | } | |
8480 | ||
b92ab5d8 JB |
8481 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
8482 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
8483 | { |
8484 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8485 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8486 | struct sk_buff *msg; | |
8487 | void *hdr; | |
8488 | int err; | |
15e47304 | 8489 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
28946da7 | 8490 | |
15e47304 | 8491 | if (!nlportid) |
28946da7 JB |
8492 | return false; |
8493 | ||
8494 | msg = nlmsg_new(100, gfp); | |
8495 | if (!msg) | |
8496 | return true; | |
8497 | ||
b92ab5d8 | 8498 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
8499 | if (!hdr) { |
8500 | nlmsg_free(msg); | |
8501 | return true; | |
8502 | } | |
8503 | ||
9360ffd1 DM |
8504 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8505 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8506 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8507 | goto nla_put_failure; | |
28946da7 JB |
8508 | |
8509 | err = genlmsg_end(msg, hdr); | |
8510 | if (err < 0) { | |
8511 | nlmsg_free(msg); | |
8512 | return true; | |
8513 | } | |
8514 | ||
15e47304 | 8515 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
28946da7 JB |
8516 | return true; |
8517 | ||
8518 | nla_put_failure: | |
8519 | genlmsg_cancel(msg, hdr); | |
8520 | nlmsg_free(msg); | |
8521 | return true; | |
8522 | } | |
8523 | ||
b92ab5d8 JB |
8524 | bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp) |
8525 | { | |
8526 | return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
8527 | addr, gfp); | |
8528 | } | |
8529 | ||
8530 | bool nl80211_unexpected_4addr_frame(struct net_device *dev, | |
8531 | const u8 *addr, gfp_t gfp) | |
8532 | { | |
8533 | return __nl80211_unexpected_frame(dev, | |
8534 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
8535 | addr, gfp); | |
8536 | } | |
8537 | ||
2e161f78 | 8538 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
15e47304 | 8539 | struct wireless_dev *wdev, u32 nlportid, |
804483e9 JB |
8540 | int freq, int sig_dbm, |
8541 | const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 | 8542 | { |
71bbc994 | 8543 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
8544 | struct sk_buff *msg; |
8545 | void *hdr; | |
026331c4 JM |
8546 | |
8547 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8548 | if (!msg) | |
8549 | return -ENOMEM; | |
8550 | ||
2e161f78 | 8551 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
8552 | if (!hdr) { |
8553 | nlmsg_free(msg); | |
8554 | return -ENOMEM; | |
8555 | } | |
8556 | ||
9360ffd1 | 8557 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
8558 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8559 | netdev->ifindex)) || | |
9360ffd1 DM |
8560 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
8561 | (sig_dbm && | |
8562 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
8563 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
8564 | goto nla_put_failure; | |
026331c4 | 8565 | |
3b7b72ee | 8566 | genlmsg_end(msg, hdr); |
026331c4 | 8567 | |
15e47304 | 8568 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
026331c4 JM |
8569 | |
8570 | nla_put_failure: | |
8571 | genlmsg_cancel(msg, hdr); | |
8572 | nlmsg_free(msg); | |
8573 | return -ENOBUFS; | |
8574 | } | |
8575 | ||
2e161f78 | 8576 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
71bbc994 | 8577 | struct wireless_dev *wdev, u64 cookie, |
2e161f78 JB |
8578 | const u8 *buf, size_t len, bool ack, |
8579 | gfp_t gfp) | |
026331c4 | 8580 | { |
71bbc994 | 8581 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
8582 | struct sk_buff *msg; |
8583 | void *hdr; | |
8584 | ||
8585 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8586 | if (!msg) | |
8587 | return; | |
8588 | ||
2e161f78 | 8589 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
8590 | if (!hdr) { |
8591 | nlmsg_free(msg); | |
8592 | return; | |
8593 | } | |
8594 | ||
9360ffd1 | 8595 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
8596 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8597 | netdev->ifindex)) || | |
9360ffd1 DM |
8598 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
8599 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8600 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8601 | goto nla_put_failure; | |
026331c4 | 8602 | |
3b7b72ee | 8603 | genlmsg_end(msg, hdr); |
026331c4 JM |
8604 | |
8605 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
8606 | return; | |
8607 | ||
8608 | nla_put_failure: | |
8609 | genlmsg_cancel(msg, hdr); | |
8610 | nlmsg_free(msg); | |
8611 | } | |
8612 | ||
d6dc1a38 JO |
8613 | void |
8614 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
8615 | struct net_device *netdev, | |
8616 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
8617 | gfp_t gfp) | |
8618 | { | |
8619 | struct sk_buff *msg; | |
8620 | struct nlattr *pinfoattr; | |
8621 | void *hdr; | |
8622 | ||
58050fce | 8623 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
d6dc1a38 JO |
8624 | if (!msg) |
8625 | return; | |
8626 | ||
8627 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8628 | if (!hdr) { | |
8629 | nlmsg_free(msg); | |
8630 | return; | |
8631 | } | |
8632 | ||
9360ffd1 DM |
8633 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8634 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8635 | goto nla_put_failure; | |
d6dc1a38 JO |
8636 | |
8637 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8638 | if (!pinfoattr) | |
8639 | goto nla_put_failure; | |
8640 | ||
9360ffd1 DM |
8641 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
8642 | rssi_event)) | |
8643 | goto nla_put_failure; | |
d6dc1a38 JO |
8644 | |
8645 | nla_nest_end(msg, pinfoattr); | |
8646 | ||
3b7b72ee | 8647 | genlmsg_end(msg, hdr); |
d6dc1a38 JO |
8648 | |
8649 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8650 | nl80211_mlme_mcgrp.id, gfp); | |
8651 | return; | |
8652 | ||
8653 | nla_put_failure: | |
8654 | genlmsg_cancel(msg, hdr); | |
8655 | nlmsg_free(msg); | |
8656 | } | |
8657 | ||
e5497d76 JB |
8658 | void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
8659 | struct net_device *netdev, const u8 *bssid, | |
8660 | const u8 *replay_ctr, gfp_t gfp) | |
8661 | { | |
8662 | struct sk_buff *msg; | |
8663 | struct nlattr *rekey_attr; | |
8664 | void *hdr; | |
8665 | ||
58050fce | 8666 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
e5497d76 JB |
8667 | if (!msg) |
8668 | return; | |
8669 | ||
8670 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
8671 | if (!hdr) { | |
8672 | nlmsg_free(msg); | |
8673 | return; | |
8674 | } | |
8675 | ||
9360ffd1 DM |
8676 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8677 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8678 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8679 | goto nla_put_failure; | |
e5497d76 JB |
8680 | |
8681 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
8682 | if (!rekey_attr) | |
8683 | goto nla_put_failure; | |
8684 | ||
9360ffd1 DM |
8685 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
8686 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
8687 | goto nla_put_failure; | |
e5497d76 JB |
8688 | |
8689 | nla_nest_end(msg, rekey_attr); | |
8690 | ||
3b7b72ee | 8691 | genlmsg_end(msg, hdr); |
e5497d76 JB |
8692 | |
8693 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8694 | nl80211_mlme_mcgrp.id, gfp); | |
8695 | return; | |
8696 | ||
8697 | nla_put_failure: | |
8698 | genlmsg_cancel(msg, hdr); | |
8699 | nlmsg_free(msg); | |
8700 | } | |
8701 | ||
c9df56b4 JM |
8702 | void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
8703 | struct net_device *netdev, int index, | |
8704 | const u8 *bssid, bool preauth, gfp_t gfp) | |
8705 | { | |
8706 | struct sk_buff *msg; | |
8707 | struct nlattr *attr; | |
8708 | void *hdr; | |
8709 | ||
58050fce | 8710 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c9df56b4 JM |
8711 | if (!msg) |
8712 | return; | |
8713 | ||
8714 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
8715 | if (!hdr) { | |
8716 | nlmsg_free(msg); | |
8717 | return; | |
8718 | } | |
8719 | ||
9360ffd1 DM |
8720 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8721 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8722 | goto nla_put_failure; | |
c9df56b4 JM |
8723 | |
8724 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
8725 | if (!attr) | |
8726 | goto nla_put_failure; | |
8727 | ||
9360ffd1 DM |
8728 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
8729 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
8730 | (preauth && | |
8731 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
8732 | goto nla_put_failure; | |
c9df56b4 JM |
8733 | |
8734 | nla_nest_end(msg, attr); | |
8735 | ||
3b7b72ee | 8736 | genlmsg_end(msg, hdr); |
c9df56b4 JM |
8737 | |
8738 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8739 | nl80211_mlme_mcgrp.id, gfp); | |
8740 | return; | |
8741 | ||
8742 | nla_put_failure: | |
8743 | genlmsg_cancel(msg, hdr); | |
8744 | nlmsg_free(msg); | |
8745 | } | |
8746 | ||
5314526b TP |
8747 | void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, |
8748 | struct net_device *netdev, int freq, | |
8749 | enum nl80211_channel_type type, gfp_t gfp) | |
8750 | { | |
8751 | struct sk_buff *msg; | |
8752 | void *hdr; | |
8753 | ||
58050fce | 8754 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
5314526b TP |
8755 | if (!msg) |
8756 | return; | |
8757 | ||
8758 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); | |
8759 | if (!hdr) { | |
8760 | nlmsg_free(msg); | |
8761 | return; | |
8762 | } | |
8763 | ||
7eab0f64 JL |
8764 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
8765 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
8766 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type)) | |
8767 | goto nla_put_failure; | |
5314526b TP |
8768 | |
8769 | genlmsg_end(msg, hdr); | |
8770 | ||
8771 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8772 | nl80211_mlme_mcgrp.id, gfp); | |
8773 | return; | |
8774 | ||
8775 | nla_put_failure: | |
8776 | genlmsg_cancel(msg, hdr); | |
8777 | nlmsg_free(msg); | |
8778 | } | |
8779 | ||
84f10708 TP |
8780 | void |
8781 | nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev, | |
8782 | struct net_device *netdev, const u8 *peer, | |
8783 | u32 num_packets, u32 rate, u32 intvl, gfp_t gfp) | |
8784 | { | |
8785 | struct sk_buff *msg; | |
8786 | struct nlattr *pinfoattr; | |
8787 | void *hdr; | |
8788 | ||
8789 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8790 | if (!msg) | |
8791 | return; | |
8792 | ||
8793 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8794 | if (!hdr) { | |
8795 | nlmsg_free(msg); | |
8796 | return; | |
8797 | } | |
8798 | ||
8799 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8800 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8801 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8802 | goto nla_put_failure; | |
8803 | ||
8804 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8805 | if (!pinfoattr) | |
8806 | goto nla_put_failure; | |
8807 | ||
8808 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
8809 | goto nla_put_failure; | |
8810 | ||
8811 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
8812 | goto nla_put_failure; | |
8813 | ||
8814 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
8815 | goto nla_put_failure; | |
8816 | ||
8817 | nla_nest_end(msg, pinfoattr); | |
8818 | ||
8819 | genlmsg_end(msg, hdr); | |
8820 | ||
8821 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8822 | nl80211_mlme_mcgrp.id, gfp); | |
8823 | return; | |
8824 | ||
8825 | nla_put_failure: | |
8826 | genlmsg_cancel(msg, hdr); | |
8827 | nlmsg_free(msg); | |
8828 | } | |
8829 | ||
c063dbf5 JB |
8830 | void |
8831 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
8832 | struct net_device *netdev, const u8 *peer, | |
8833 | u32 num_packets, gfp_t gfp) | |
8834 | { | |
8835 | struct sk_buff *msg; | |
8836 | struct nlattr *pinfoattr; | |
8837 | void *hdr; | |
8838 | ||
58050fce | 8839 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c063dbf5 JB |
8840 | if (!msg) |
8841 | return; | |
8842 | ||
8843 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8844 | if (!hdr) { | |
8845 | nlmsg_free(msg); | |
8846 | return; | |
8847 | } | |
8848 | ||
9360ffd1 DM |
8849 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8850 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8851 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8852 | goto nla_put_failure; | |
c063dbf5 JB |
8853 | |
8854 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8855 | if (!pinfoattr) | |
8856 | goto nla_put_failure; | |
8857 | ||
9360ffd1 DM |
8858 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
8859 | goto nla_put_failure; | |
c063dbf5 JB |
8860 | |
8861 | nla_nest_end(msg, pinfoattr); | |
8862 | ||
3b7b72ee | 8863 | genlmsg_end(msg, hdr); |
c063dbf5 JB |
8864 | |
8865 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8866 | nl80211_mlme_mcgrp.id, gfp); | |
8867 | return; | |
8868 | ||
8869 | nla_put_failure: | |
8870 | genlmsg_cancel(msg, hdr); | |
8871 | nlmsg_free(msg); | |
8872 | } | |
8873 | ||
7f6cf311 JB |
8874 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
8875 | u64 cookie, bool acked, gfp_t gfp) | |
8876 | { | |
8877 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8878 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8879 | struct sk_buff *msg; | |
8880 | void *hdr; | |
8881 | int err; | |
8882 | ||
4ee3e063 BL |
8883 | trace_cfg80211_probe_status(dev, addr, cookie, acked); |
8884 | ||
58050fce | 8885 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
4ee3e063 | 8886 | |
7f6cf311 JB |
8887 | if (!msg) |
8888 | return; | |
8889 | ||
8890 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
8891 | if (!hdr) { | |
8892 | nlmsg_free(msg); | |
8893 | return; | |
8894 | } | |
8895 | ||
9360ffd1 DM |
8896 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8897 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8898 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
8899 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8900 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8901 | goto nla_put_failure; | |
7f6cf311 JB |
8902 | |
8903 | err = genlmsg_end(msg, hdr); | |
8904 | if (err < 0) { | |
8905 | nlmsg_free(msg); | |
8906 | return; | |
8907 | } | |
8908 | ||
8909 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8910 | nl80211_mlme_mcgrp.id, gfp); | |
8911 | return; | |
8912 | ||
8913 | nla_put_failure: | |
8914 | genlmsg_cancel(msg, hdr); | |
8915 | nlmsg_free(msg); | |
8916 | } | |
8917 | EXPORT_SYMBOL(cfg80211_probe_status); | |
8918 | ||
5e760230 JB |
8919 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
8920 | const u8 *frame, size_t len, | |
804483e9 | 8921 | int freq, int sig_dbm, gfp_t gfp) |
5e760230 JB |
8922 | { |
8923 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
8924 | struct sk_buff *msg; | |
8925 | void *hdr; | |
15e47304 | 8926 | u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid); |
5e760230 | 8927 | |
4ee3e063 BL |
8928 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
8929 | ||
15e47304 | 8930 | if (!nlportid) |
5e760230 JB |
8931 | return; |
8932 | ||
8933 | msg = nlmsg_new(len + 100, gfp); | |
8934 | if (!msg) | |
8935 | return; | |
8936 | ||
8937 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
8938 | if (!hdr) { | |
8939 | nlmsg_free(msg); | |
8940 | return; | |
8941 | } | |
8942 | ||
9360ffd1 DM |
8943 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8944 | (freq && | |
8945 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
8946 | (sig_dbm && | |
8947 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
8948 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
8949 | goto nla_put_failure; | |
5e760230 JB |
8950 | |
8951 | genlmsg_end(msg, hdr); | |
8952 | ||
15e47304 | 8953 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
5e760230 JB |
8954 | return; |
8955 | ||
8956 | nla_put_failure: | |
8957 | genlmsg_cancel(msg, hdr); | |
8958 | nlmsg_free(msg); | |
8959 | } | |
8960 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
8961 | ||
026331c4 JM |
8962 | static int nl80211_netlink_notify(struct notifier_block * nb, |
8963 | unsigned long state, | |
8964 | void *_notify) | |
8965 | { | |
8966 | struct netlink_notify *notify = _notify; | |
8967 | struct cfg80211_registered_device *rdev; | |
8968 | struct wireless_dev *wdev; | |
8969 | ||
8970 | if (state != NETLINK_URELEASE) | |
8971 | return NOTIFY_DONE; | |
8972 | ||
8973 | rcu_read_lock(); | |
8974 | ||
5e760230 | 8975 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
89a54e48 | 8976 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) |
15e47304 EB |
8977 | cfg80211_mlme_unregister_socket(wdev, notify->portid); |
8978 | if (rdev->ap_beacons_nlportid == notify->portid) | |
8979 | rdev->ap_beacons_nlportid = 0; | |
5e760230 | 8980 | } |
026331c4 JM |
8981 | |
8982 | rcu_read_unlock(); | |
8983 | ||
8984 | return NOTIFY_DONE; | |
8985 | } | |
8986 | ||
8987 | static struct notifier_block nl80211_netlink_notifier = { | |
8988 | .notifier_call = nl80211_netlink_notify, | |
8989 | }; | |
8990 | ||
55682965 JB |
8991 | /* initialisation/exit functions */ |
8992 | ||
8993 | int nl80211_init(void) | |
8994 | { | |
0d63cbb5 | 8995 | int err; |
55682965 | 8996 | |
0d63cbb5 MM |
8997 | err = genl_register_family_with_ops(&nl80211_fam, |
8998 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
8999 | if (err) |
9000 | return err; | |
9001 | ||
55682965 JB |
9002 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
9003 | if (err) | |
9004 | goto err_out; | |
9005 | ||
2a519311 JB |
9006 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
9007 | if (err) | |
9008 | goto err_out; | |
9009 | ||
73d54c9e LR |
9010 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
9011 | if (err) | |
9012 | goto err_out; | |
9013 | ||
6039f6d2 JM |
9014 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
9015 | if (err) | |
9016 | goto err_out; | |
9017 | ||
aff89a9b JB |
9018 | #ifdef CONFIG_NL80211_TESTMODE |
9019 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
9020 | if (err) | |
9021 | goto err_out; | |
9022 | #endif | |
9023 | ||
026331c4 JM |
9024 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
9025 | if (err) | |
9026 | goto err_out; | |
9027 | ||
55682965 JB |
9028 | return 0; |
9029 | err_out: | |
9030 | genl_unregister_family(&nl80211_fam); | |
9031 | return err; | |
9032 | } | |
9033 | ||
9034 | void nl80211_exit(void) | |
9035 | { | |
026331c4 | 9036 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
9037 | genl_unregister_family(&nl80211_fam); |
9038 | } |