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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" |
55682965 | 25 | |
5fb628e9 JM |
26 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
27 | struct genl_info *info, | |
28 | struct cfg80211_crypto_settings *settings, | |
29 | int cipher_limit); | |
30 | ||
4c476991 JB |
31 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, |
32 | struct genl_info *info); | |
33 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
34 | struct genl_info *info); | |
35 | ||
55682965 JB |
36 | /* the netlink family */ |
37 | static struct genl_family nl80211_fam = { | |
38 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
39 | .name = "nl80211", /* have users key off the name instead */ | |
40 | .hdrsize = 0, /* no private header */ | |
41 | .version = 1, /* no particular meaning now */ | |
42 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 43 | .netnsok = true, |
4c476991 JB |
44 | .pre_doit = nl80211_pre_doit, |
45 | .post_doit = nl80211_post_doit, | |
55682965 JB |
46 | }; |
47 | ||
89a54e48 JB |
48 | /* returns ERR_PTR values */ |
49 | static struct wireless_dev * | |
50 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
55682965 | 51 | { |
89a54e48 JB |
52 | struct cfg80211_registered_device *rdev; |
53 | struct wireless_dev *result = NULL; | |
54 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
55 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
56 | u64 wdev_id; | |
57 | int wiphy_idx = -1; | |
58 | int ifidx = -1; | |
55682965 | 59 | |
89a54e48 | 60 | assert_cfg80211_lock(); |
55682965 | 61 | |
89a54e48 JB |
62 | if (!have_ifidx && !have_wdev_id) |
63 | return ERR_PTR(-EINVAL); | |
55682965 | 64 | |
89a54e48 JB |
65 | if (have_ifidx) |
66 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
67 | if (have_wdev_id) { | |
68 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
69 | wiphy_idx = wdev_id >> 32; | |
55682965 JB |
70 | } |
71 | ||
89a54e48 JB |
72 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
73 | struct wireless_dev *wdev; | |
74 | ||
75 | if (wiphy_net(&rdev->wiphy) != netns) | |
76 | continue; | |
77 | ||
78 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
79 | continue; | |
80 | ||
81 | mutex_lock(&rdev->devlist_mtx); | |
82 | list_for_each_entry(wdev, &rdev->wdev_list, list) { | |
83 | if (have_ifidx && wdev->netdev && | |
84 | wdev->netdev->ifindex == ifidx) { | |
85 | result = wdev; | |
86 | break; | |
87 | } | |
88 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
89 | result = wdev; | |
90 | break; | |
91 | } | |
92 | } | |
93 | mutex_unlock(&rdev->devlist_mtx); | |
94 | ||
95 | if (result) | |
96 | break; | |
97 | } | |
98 | ||
99 | if (result) | |
100 | return result; | |
101 | return ERR_PTR(-ENODEV); | |
55682965 JB |
102 | } |
103 | ||
a9455408 | 104 | static struct cfg80211_registered_device * |
878d9ec7 | 105 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
a9455408 | 106 | { |
7fee4778 JB |
107 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
108 | struct net_device *netdev; | |
a9455408 JB |
109 | |
110 | assert_cfg80211_lock(); | |
111 | ||
878d9ec7 | 112 | if (!attrs[NL80211_ATTR_WIPHY] && |
89a54e48 JB |
113 | !attrs[NL80211_ATTR_IFINDEX] && |
114 | !attrs[NL80211_ATTR_WDEV]) | |
7fee4778 JB |
115 | return ERR_PTR(-EINVAL); |
116 | ||
878d9ec7 | 117 | if (attrs[NL80211_ATTR_WIPHY]) |
7fee4778 | 118 | rdev = cfg80211_rdev_by_wiphy_idx( |
878d9ec7 | 119 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
a9455408 | 120 | |
89a54e48 JB |
121 | if (attrs[NL80211_ATTR_WDEV]) { |
122 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
123 | struct wireless_dev *wdev; | |
124 | bool found = false; | |
125 | ||
126 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
127 | if (tmp) { | |
128 | /* make sure wdev exists */ | |
129 | mutex_lock(&tmp->devlist_mtx); | |
130 | list_for_each_entry(wdev, &tmp->wdev_list, list) { | |
131 | if (wdev->identifier != (u32)wdev_id) | |
132 | continue; | |
133 | found = true; | |
134 | break; | |
135 | } | |
136 | mutex_unlock(&tmp->devlist_mtx); | |
137 | ||
138 | if (!found) | |
139 | tmp = NULL; | |
140 | ||
141 | if (rdev && tmp != rdev) | |
142 | return ERR_PTR(-EINVAL); | |
143 | rdev = tmp; | |
144 | } | |
145 | } | |
146 | ||
878d9ec7 JB |
147 | if (attrs[NL80211_ATTR_IFINDEX]) { |
148 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
4f7eff10 | 149 | netdev = dev_get_by_index(netns, ifindex); |
7fee4778 JB |
150 | if (netdev) { |
151 | if (netdev->ieee80211_ptr) | |
152 | tmp = wiphy_to_dev( | |
153 | netdev->ieee80211_ptr->wiphy); | |
154 | else | |
155 | tmp = NULL; | |
156 | ||
157 | dev_put(netdev); | |
158 | ||
159 | /* not wireless device -- return error */ | |
160 | if (!tmp) | |
161 | return ERR_PTR(-EINVAL); | |
162 | ||
163 | /* mismatch -- return error */ | |
164 | if (rdev && tmp != rdev) | |
165 | return ERR_PTR(-EINVAL); | |
166 | ||
167 | rdev = tmp; | |
a9455408 | 168 | } |
a9455408 | 169 | } |
a9455408 | 170 | |
4f7eff10 JB |
171 | if (!rdev) |
172 | return ERR_PTR(-ENODEV); | |
a9455408 | 173 | |
4f7eff10 JB |
174 | if (netns != wiphy_net(&rdev->wiphy)) |
175 | return ERR_PTR(-ENODEV); | |
176 | ||
177 | return rdev; | |
a9455408 JB |
178 | } |
179 | ||
180 | /* | |
181 | * This function returns a pointer to the driver | |
182 | * that the genl_info item that is passed refers to. | |
183 | * If successful, it returns non-NULL and also locks | |
184 | * the driver's mutex! | |
185 | * | |
186 | * This means that you need to call cfg80211_unlock_rdev() | |
187 | * before being allowed to acquire &cfg80211_mutex! | |
188 | * | |
189 | * This is necessary because we need to lock the global | |
190 | * mutex to get an item off the list safely, and then | |
191 | * we lock the rdev mutex so it doesn't go away under us. | |
192 | * | |
193 | * We don't want to keep cfg80211_mutex locked | |
194 | * for all the time in order to allow requests on | |
195 | * other interfaces to go through at the same time. | |
196 | * | |
197 | * The result of this can be a PTR_ERR and hence must | |
198 | * be checked with IS_ERR() for errors. | |
199 | */ | |
200 | static struct cfg80211_registered_device * | |
4f7eff10 | 201 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
a9455408 JB |
202 | { |
203 | struct cfg80211_registered_device *rdev; | |
204 | ||
205 | mutex_lock(&cfg80211_mutex); | |
878d9ec7 | 206 | rdev = __cfg80211_rdev_from_attrs(netns, info->attrs); |
a9455408 JB |
207 | |
208 | /* if it is not an error we grab the lock on | |
209 | * it to assure it won't be going away while | |
210 | * we operate on it */ | |
211 | if (!IS_ERR(rdev)) | |
212 | mutex_lock(&rdev->mtx); | |
213 | ||
214 | mutex_unlock(&cfg80211_mutex); | |
215 | ||
216 | return rdev; | |
217 | } | |
218 | ||
55682965 | 219 | /* policy for the attributes */ |
b54452b0 | 220 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
221 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
222 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 223 | .len = 20-1 }, |
31888487 | 224 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 225 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 226 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
227 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
228 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
229 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
230 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 231 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
232 | |
233 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
234 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
235 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 236 | |
e007b857 EP |
237 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
238 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 239 | |
b9454e83 | 240 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
241 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
242 | .len = WLAN_MAX_KEY_LEN }, | |
243 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
244 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
245 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 246 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 247 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
248 | |
249 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
250 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
251 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
252 | .len = IEEE80211_MAX_DATA_LEN }, | |
253 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
254 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
255 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
256 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
257 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
258 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
259 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 260 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 261 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 262 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 | 263 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
a4f606ea | 264 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
2ec600d6 | 265 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
9f1ba906 | 266 | |
b2e1b302 LR |
267 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
268 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
269 | ||
9f1ba906 JM |
270 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
271 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
272 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
273 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
274 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 275 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 276 | |
24bdd9f4 | 277 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 278 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 279 | |
6c739419 | 280 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
281 | |
282 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
283 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
284 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
285 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
286 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
287 | |
288 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
289 | .len = IEEE80211_MAX_SSID_LEN }, | |
290 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
291 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 292 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 293 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 294 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
295 | [NL80211_ATTR_STA_FLAGS2] = { |
296 | .len = sizeof(struct nl80211_sta_flag_update), | |
297 | }, | |
3f77316c | 298 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
299 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
300 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
301 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
302 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
303 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 304 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 305 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
306 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
307 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
308 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
309 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 310 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
311 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
312 | .len = IEEE80211_MAX_DATA_LEN }, | |
313 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 314 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 315 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 316 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 317 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
318 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
319 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 320 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
321 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
322 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 323 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 324 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 325 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 326 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 327 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 328 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 329 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 330 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 331 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
332 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
333 | .len = IEEE80211_MAX_DATA_LEN }, | |
334 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
335 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 336 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 337 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 338 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
339 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
340 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
341 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
342 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
343 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
e247bd90 | 344 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
345 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
346 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 347 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
348 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
349 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
350 | .len = NL80211_HT_CAPABILITY_LEN | |
351 | }, | |
1d9d9213 | 352 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 353 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 354 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
89a54e48 | 355 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
57b5ce07 | 356 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
e39e5b5e | 357 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
f461be3e | 358 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
ed473771 | 359 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
55682965 JB |
360 | }; |
361 | ||
e31b8213 | 362 | /* policy for the key attributes */ |
b54452b0 | 363 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 364 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
365 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
366 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 367 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
368 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
369 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 370 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
371 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
372 | }; | |
373 | ||
374 | /* policy for the key default flags */ | |
375 | static const struct nla_policy | |
376 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
377 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
378 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
379 | }; |
380 | ||
ff1b6e69 JB |
381 | /* policy for WoWLAN attributes */ |
382 | static const struct nla_policy | |
383 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
384 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
385 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
386 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
387 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
388 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
389 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
390 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
391 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
ff1b6e69 JB |
392 | }; |
393 | ||
e5497d76 JB |
394 | /* policy for GTK rekey offload attributes */ |
395 | static const struct nla_policy | |
396 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
397 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
398 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
399 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
400 | }; | |
401 | ||
a1f1c21c LC |
402 | static const struct nla_policy |
403 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
4a4ab0d7 | 404 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
a1f1c21c | 405 | .len = IEEE80211_MAX_SSID_LEN }, |
88e920b4 | 406 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
a1f1c21c LC |
407 | }; |
408 | ||
a043897a HS |
409 | /* ifidx get helper */ |
410 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
411 | { | |
412 | int res; | |
413 | ||
414 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
415 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
416 | nl80211_policy); | |
417 | if (res) | |
418 | return res; | |
419 | ||
420 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
421 | return -EINVAL; | |
422 | ||
423 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
424 | if (!res) | |
425 | return -EINVAL; | |
426 | return res; | |
427 | } | |
428 | ||
67748893 JB |
429 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
430 | struct netlink_callback *cb, | |
431 | struct cfg80211_registered_device **rdev, | |
432 | struct net_device **dev) | |
433 | { | |
434 | int ifidx = cb->args[0]; | |
435 | int err; | |
436 | ||
437 | if (!ifidx) | |
438 | ifidx = nl80211_get_ifidx(cb); | |
439 | if (ifidx < 0) | |
440 | return ifidx; | |
441 | ||
442 | cb->args[0] = ifidx; | |
443 | ||
444 | rtnl_lock(); | |
445 | ||
446 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
447 | if (!*dev) { | |
448 | err = -ENODEV; | |
449 | goto out_rtnl; | |
450 | } | |
451 | ||
452 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
453 | if (IS_ERR(*rdev)) { |
454 | err = PTR_ERR(*rdev); | |
67748893 JB |
455 | goto out_rtnl; |
456 | } | |
457 | ||
458 | return 0; | |
459 | out_rtnl: | |
460 | rtnl_unlock(); | |
461 | return err; | |
462 | } | |
463 | ||
464 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
465 | { | |
466 | cfg80211_unlock_rdev(rdev); | |
467 | rtnl_unlock(); | |
468 | } | |
469 | ||
f4a11bb0 JB |
470 | /* IE validation */ |
471 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
472 | { | |
473 | const u8 *pos; | |
474 | int len; | |
475 | ||
476 | if (!attr) | |
477 | return true; | |
478 | ||
479 | pos = nla_data(attr); | |
480 | len = nla_len(attr); | |
481 | ||
482 | while (len) { | |
483 | u8 elemlen; | |
484 | ||
485 | if (len < 2) | |
486 | return false; | |
487 | len -= 2; | |
488 | ||
489 | elemlen = pos[1]; | |
490 | if (elemlen > len) | |
491 | return false; | |
492 | ||
493 | len -= elemlen; | |
494 | pos += 2 + elemlen; | |
495 | } | |
496 | ||
497 | return true; | |
498 | } | |
499 | ||
55682965 | 500 | /* message building helper */ |
15e47304 | 501 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
55682965 JB |
502 | int flags, u8 cmd) |
503 | { | |
504 | /* since there is no private header just add the generic one */ | |
15e47304 | 505 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
55682965 JB |
506 | } |
507 | ||
5dab3b8a LR |
508 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
509 | struct ieee80211_channel *chan) | |
510 | { | |
9360ffd1 DM |
511 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
512 | chan->center_freq)) | |
513 | goto nla_put_failure; | |
5dab3b8a | 514 | |
9360ffd1 DM |
515 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
516 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
517 | goto nla_put_failure; | |
518 | if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) && | |
519 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN)) | |
520 | goto nla_put_failure; | |
521 | if ((chan->flags & IEEE80211_CHAN_NO_IBSS) && | |
522 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
523 | goto nla_put_failure; | |
524 | if ((chan->flags & IEEE80211_CHAN_RADAR) && | |
525 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
526 | goto nla_put_failure; | |
5dab3b8a | 527 | |
9360ffd1 DM |
528 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
529 | DBM_TO_MBM(chan->max_power))) | |
530 | goto nla_put_failure; | |
5dab3b8a LR |
531 | |
532 | return 0; | |
533 | ||
534 | nla_put_failure: | |
535 | return -ENOBUFS; | |
536 | } | |
537 | ||
55682965 JB |
538 | /* netlink command implementations */ |
539 | ||
b9454e83 JB |
540 | struct key_parse { |
541 | struct key_params p; | |
542 | int idx; | |
e31b8213 | 543 | int type; |
b9454e83 | 544 | bool def, defmgmt; |
dbd2fd65 | 545 | bool def_uni, def_multi; |
b9454e83 JB |
546 | }; |
547 | ||
548 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
549 | { | |
550 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
551 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
552 | nl80211_key_policy); | |
553 | if (err) | |
554 | return err; | |
555 | ||
556 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
557 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
558 | ||
dbd2fd65 JB |
559 | if (k->def) { |
560 | k->def_uni = true; | |
561 | k->def_multi = true; | |
562 | } | |
563 | if (k->defmgmt) | |
564 | k->def_multi = true; | |
565 | ||
b9454e83 JB |
566 | if (tb[NL80211_KEY_IDX]) |
567 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
568 | ||
569 | if (tb[NL80211_KEY_DATA]) { | |
570 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
571 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
572 | } | |
573 | ||
574 | if (tb[NL80211_KEY_SEQ]) { | |
575 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
576 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
577 | } | |
578 | ||
579 | if (tb[NL80211_KEY_CIPHER]) | |
580 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
581 | ||
e31b8213 JB |
582 | if (tb[NL80211_KEY_TYPE]) { |
583 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
584 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
585 | return -EINVAL; | |
586 | } | |
587 | ||
dbd2fd65 JB |
588 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
589 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
590 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
591 | tb[NL80211_KEY_DEFAULT_TYPES], | |
592 | nl80211_key_default_policy); | |
dbd2fd65 JB |
593 | if (err) |
594 | return err; | |
595 | ||
596 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
597 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
598 | } | |
599 | ||
b9454e83 JB |
600 | return 0; |
601 | } | |
602 | ||
603 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
604 | { | |
605 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
606 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
607 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
608 | } | |
609 | ||
610 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
611 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
612 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
613 | } | |
614 | ||
615 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
616 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
617 | ||
618 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
619 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
620 | ||
621 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
622 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
623 | ||
dbd2fd65 JB |
624 | if (k->def) { |
625 | k->def_uni = true; | |
626 | k->def_multi = true; | |
627 | } | |
628 | if (k->defmgmt) | |
629 | k->def_multi = true; | |
630 | ||
e31b8213 JB |
631 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
632 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
633 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
634 | return -EINVAL; | |
635 | } | |
636 | ||
dbd2fd65 JB |
637 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
638 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
639 | int err = nla_parse_nested( | |
640 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
641 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
642 | nl80211_key_default_policy); | |
643 | if (err) | |
644 | return err; | |
645 | ||
646 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
647 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
648 | } | |
649 | ||
b9454e83 JB |
650 | return 0; |
651 | } | |
652 | ||
653 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
654 | { | |
655 | int err; | |
656 | ||
657 | memset(k, 0, sizeof(*k)); | |
658 | k->idx = -1; | |
e31b8213 | 659 | k->type = -1; |
b9454e83 JB |
660 | |
661 | if (info->attrs[NL80211_ATTR_KEY]) | |
662 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
663 | else | |
664 | err = nl80211_parse_key_old(info, k); | |
665 | ||
666 | if (err) | |
667 | return err; | |
668 | ||
669 | if (k->def && k->defmgmt) | |
670 | return -EINVAL; | |
671 | ||
dbd2fd65 JB |
672 | if (k->defmgmt) { |
673 | if (k->def_uni || !k->def_multi) | |
674 | return -EINVAL; | |
675 | } | |
676 | ||
b9454e83 JB |
677 | if (k->idx != -1) { |
678 | if (k->defmgmt) { | |
679 | if (k->idx < 4 || k->idx > 5) | |
680 | return -EINVAL; | |
681 | } else if (k->def) { | |
682 | if (k->idx < 0 || k->idx > 3) | |
683 | return -EINVAL; | |
684 | } else { | |
685 | if (k->idx < 0 || k->idx > 5) | |
686 | return -EINVAL; | |
687 | } | |
688 | } | |
689 | ||
690 | return 0; | |
691 | } | |
692 | ||
fffd0934 JB |
693 | static struct cfg80211_cached_keys * |
694 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
de7044ee | 695 | struct nlattr *keys, bool *no_ht) |
fffd0934 JB |
696 | { |
697 | struct key_parse parse; | |
698 | struct nlattr *key; | |
699 | struct cfg80211_cached_keys *result; | |
700 | int rem, err, def = 0; | |
701 | ||
702 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
703 | if (!result) | |
704 | return ERR_PTR(-ENOMEM); | |
705 | ||
706 | result->def = -1; | |
707 | result->defmgmt = -1; | |
708 | ||
709 | nla_for_each_nested(key, keys, rem) { | |
710 | memset(&parse, 0, sizeof(parse)); | |
711 | parse.idx = -1; | |
712 | ||
713 | err = nl80211_parse_key_new(key, &parse); | |
714 | if (err) | |
715 | goto error; | |
716 | err = -EINVAL; | |
717 | if (!parse.p.key) | |
718 | goto error; | |
719 | if (parse.idx < 0 || parse.idx > 4) | |
720 | goto error; | |
721 | if (parse.def) { | |
722 | if (def) | |
723 | goto error; | |
724 | def = 1; | |
725 | result->def = parse.idx; | |
dbd2fd65 JB |
726 | if (!parse.def_uni || !parse.def_multi) |
727 | goto error; | |
fffd0934 JB |
728 | } else if (parse.defmgmt) |
729 | goto error; | |
730 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 731 | parse.idx, false, NULL); |
fffd0934 JB |
732 | if (err) |
733 | goto error; | |
734 | result->params[parse.idx].cipher = parse.p.cipher; | |
735 | result->params[parse.idx].key_len = parse.p.key_len; | |
736 | result->params[parse.idx].key = result->data[parse.idx]; | |
737 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
de7044ee SM |
738 | |
739 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
740 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
741 | if (no_ht) | |
742 | *no_ht = true; | |
743 | } | |
fffd0934 JB |
744 | } |
745 | ||
746 | return result; | |
747 | error: | |
748 | kfree(result); | |
749 | return ERR_PTR(err); | |
750 | } | |
751 | ||
752 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
753 | { | |
754 | ASSERT_WDEV_LOCK(wdev); | |
755 | ||
fffd0934 JB |
756 | switch (wdev->iftype) { |
757 | case NL80211_IFTYPE_AP: | |
758 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 759 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 760 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
761 | break; |
762 | case NL80211_IFTYPE_ADHOC: | |
763 | if (!wdev->current_bss) | |
764 | return -ENOLINK; | |
765 | break; | |
766 | case NL80211_IFTYPE_STATION: | |
074ac8df | 767 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
768 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
769 | return -ENOLINK; | |
770 | break; | |
771 | default: | |
772 | return -EINVAL; | |
773 | } | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
7527a782 JB |
778 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
779 | { | |
780 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
781 | int i; | |
782 | ||
783 | if (!nl_modes) | |
784 | goto nla_put_failure; | |
785 | ||
786 | i = 0; | |
787 | while (ifmodes) { | |
9360ffd1 DM |
788 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
789 | goto nla_put_failure; | |
7527a782 JB |
790 | ifmodes >>= 1; |
791 | i++; | |
792 | } | |
793 | ||
794 | nla_nest_end(msg, nl_modes); | |
795 | return 0; | |
796 | ||
797 | nla_put_failure: | |
798 | return -ENOBUFS; | |
799 | } | |
800 | ||
801 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
802 | struct sk_buff *msg) | |
803 | { | |
804 | struct nlattr *nl_combis; | |
805 | int i, j; | |
806 | ||
807 | nl_combis = nla_nest_start(msg, | |
808 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
809 | if (!nl_combis) | |
810 | goto nla_put_failure; | |
811 | ||
812 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
813 | const struct ieee80211_iface_combination *c; | |
814 | struct nlattr *nl_combi, *nl_limits; | |
815 | ||
816 | c = &wiphy->iface_combinations[i]; | |
817 | ||
818 | nl_combi = nla_nest_start(msg, i + 1); | |
819 | if (!nl_combi) | |
820 | goto nla_put_failure; | |
821 | ||
822 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
823 | if (!nl_limits) | |
824 | goto nla_put_failure; | |
825 | ||
826 | for (j = 0; j < c->n_limits; j++) { | |
827 | struct nlattr *nl_limit; | |
828 | ||
829 | nl_limit = nla_nest_start(msg, j + 1); | |
830 | if (!nl_limit) | |
831 | goto nla_put_failure; | |
9360ffd1 DM |
832 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
833 | c->limits[j].max)) | |
834 | goto nla_put_failure; | |
7527a782 JB |
835 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
836 | c->limits[j].types)) | |
837 | goto nla_put_failure; | |
838 | nla_nest_end(msg, nl_limit); | |
839 | } | |
840 | ||
841 | nla_nest_end(msg, nl_limits); | |
842 | ||
9360ffd1 DM |
843 | if (c->beacon_int_infra_match && |
844 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
845 | goto nla_put_failure; | |
846 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
847 | c->num_different_channels) || | |
848 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
849 | c->max_interfaces)) | |
850 | goto nla_put_failure; | |
7527a782 JB |
851 | |
852 | nla_nest_end(msg, nl_combi); | |
853 | } | |
854 | ||
855 | nla_nest_end(msg, nl_combis); | |
856 | ||
857 | return 0; | |
858 | nla_put_failure: | |
859 | return -ENOBUFS; | |
860 | } | |
861 | ||
15e47304 | 862 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
55682965 JB |
863 | struct cfg80211_registered_device *dev) |
864 | { | |
865 | void *hdr; | |
ee688b00 JB |
866 | struct nlattr *nl_bands, *nl_band; |
867 | struct nlattr *nl_freqs, *nl_freq; | |
868 | struct nlattr *nl_rates, *nl_rate; | |
8fdc621d | 869 | struct nlattr *nl_cmds; |
ee688b00 JB |
870 | enum ieee80211_band band; |
871 | struct ieee80211_channel *chan; | |
872 | struct ieee80211_rate *rate; | |
873 | int i; | |
2e161f78 JB |
874 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
875 | dev->wiphy.mgmt_stypes; | |
55682965 | 876 | |
15e47304 | 877 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); |
55682965 JB |
878 | if (!hdr) |
879 | return -1; | |
880 | ||
9360ffd1 DM |
881 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || |
882 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) || | |
883 | nla_put_u32(msg, NL80211_ATTR_GENERATION, | |
884 | cfg80211_rdev_list_generation) || | |
885 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
886 | dev->wiphy.retry_short) || | |
887 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
888 | dev->wiphy.retry_long) || | |
889 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
890 | dev->wiphy.frag_threshold) || | |
891 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
892 | dev->wiphy.rts_threshold) || | |
893 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, | |
894 | dev->wiphy.coverage_class) || | |
895 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, | |
896 | dev->wiphy.max_scan_ssids) || | |
897 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, | |
898 | dev->wiphy.max_sched_scan_ssids) || | |
899 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, | |
900 | dev->wiphy.max_scan_ie_len) || | |
901 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, | |
902 | dev->wiphy.max_sched_scan_ie_len) || | |
903 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, | |
904 | dev->wiphy.max_match_sets)) | |
905 | goto nla_put_failure; | |
906 | ||
907 | if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && | |
908 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) | |
909 | goto nla_put_failure; | |
910 | if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && | |
911 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) | |
912 | goto nla_put_failure; | |
913 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
914 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) | |
915 | goto nla_put_failure; | |
916 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && | |
917 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) | |
918 | goto nla_put_failure; | |
919 | if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && | |
920 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) | |
921 | goto nla_put_failure; | |
922 | if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && | |
923 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) | |
924 | goto nla_put_failure; | |
925 | ||
926 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
927 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
928 | dev->wiphy.cipher_suites)) | |
929 | goto nla_put_failure; | |
930 | ||
931 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, | |
932 | dev->wiphy.max_num_pmkids)) | |
933 | goto nla_put_failure; | |
934 | ||
935 | if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
936 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) | |
937 | goto nla_put_failure; | |
938 | ||
939 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, | |
940 | dev->wiphy.available_antennas_tx) || | |
941 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
942 | dev->wiphy.available_antennas_rx)) | |
943 | goto nla_put_failure; | |
944 | ||
945 | if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && | |
946 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
947 | dev->wiphy.probe_resp_offload)) | |
948 | goto nla_put_failure; | |
87bbbe22 | 949 | |
7f531e03 BR |
950 | if ((dev->wiphy.available_antennas_tx || |
951 | dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { | |
afe0cbf8 BR |
952 | u32 tx_ant = 0, rx_ant = 0; |
953 | int res; | |
954 | res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant); | |
955 | if (!res) { | |
9360ffd1 DM |
956 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, |
957 | tx_ant) || | |
958 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, | |
959 | rx_ant)) | |
960 | goto nla_put_failure; | |
afe0cbf8 BR |
961 | } |
962 | } | |
963 | ||
7527a782 JB |
964 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
965 | dev->wiphy.interface_modes)) | |
f59ac048 LR |
966 | goto nla_put_failure; |
967 | ||
ee688b00 JB |
968 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
969 | if (!nl_bands) | |
970 | goto nla_put_failure; | |
971 | ||
972 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
973 | if (!dev->wiphy.bands[band]) | |
974 | continue; | |
975 | ||
976 | nl_band = nla_nest_start(msg, band); | |
977 | if (!nl_band) | |
978 | goto nla_put_failure; | |
979 | ||
d51626df | 980 | /* add HT info */ |
9360ffd1 DM |
981 | if (dev->wiphy.bands[band]->ht_cap.ht_supported && |
982 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
983 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
984 | &dev->wiphy.bands[band]->ht_cap.mcs) || | |
985 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
986 | dev->wiphy.bands[band]->ht_cap.cap) || | |
987 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
988 | dev->wiphy.bands[band]->ht_cap.ampdu_factor) || | |
989 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
990 | dev->wiphy.bands[band]->ht_cap.ampdu_density))) | |
991 | goto nla_put_failure; | |
d51626df | 992 | |
bf0c111e MP |
993 | /* add VHT info */ |
994 | if (dev->wiphy.bands[band]->vht_cap.vht_supported && | |
995 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
996 | sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs), | |
997 | &dev->wiphy.bands[band]->vht_cap.vht_mcs) || | |
998 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
999 | dev->wiphy.bands[band]->vht_cap.cap))) | |
1000 | goto nla_put_failure; | |
1001 | ||
ee688b00 JB |
1002 | /* add frequencies */ |
1003 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
1004 | if (!nl_freqs) | |
1005 | goto nla_put_failure; | |
1006 | ||
1007 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
1008 | nl_freq = nla_nest_start(msg, i); | |
1009 | if (!nl_freq) | |
1010 | goto nla_put_failure; | |
1011 | ||
1012 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
1013 | |
1014 | if (nl80211_msg_put_channel(msg, chan)) | |
1015 | goto nla_put_failure; | |
e2f367f2 | 1016 | |
ee688b00 JB |
1017 | nla_nest_end(msg, nl_freq); |
1018 | } | |
1019 | ||
1020 | nla_nest_end(msg, nl_freqs); | |
1021 | ||
1022 | /* add bitrates */ | |
1023 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1024 | if (!nl_rates) | |
1025 | goto nla_put_failure; | |
1026 | ||
1027 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
1028 | nl_rate = nla_nest_start(msg, i); | |
1029 | if (!nl_rate) | |
1030 | goto nla_put_failure; | |
1031 | ||
1032 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
9360ffd1 DM |
1033 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, |
1034 | rate->bitrate)) | |
1035 | goto nla_put_failure; | |
1036 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1037 | nla_put_flag(msg, | |
1038 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1039 | goto nla_put_failure; | |
ee688b00 JB |
1040 | |
1041 | nla_nest_end(msg, nl_rate); | |
1042 | } | |
1043 | ||
1044 | nla_nest_end(msg, nl_rates); | |
1045 | ||
1046 | nla_nest_end(msg, nl_band); | |
1047 | } | |
1048 | nla_nest_end(msg, nl_bands); | |
1049 | ||
8fdc621d JB |
1050 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
1051 | if (!nl_cmds) | |
1052 | goto nla_put_failure; | |
1053 | ||
1054 | i = 0; | |
1055 | #define CMD(op, n) \ | |
1056 | do { \ | |
1057 | if (dev->ops->op) { \ | |
1058 | i++; \ | |
9360ffd1 DM |
1059 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ |
1060 | goto nla_put_failure; \ | |
8fdc621d JB |
1061 | } \ |
1062 | } while (0) | |
1063 | ||
1064 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1065 | CMD(change_virtual_intf, SET_INTERFACE); | |
1066 | CMD(add_key, NEW_KEY); | |
8860020e | 1067 | CMD(start_ap, START_AP); |
8fdc621d JB |
1068 | CMD(add_station, NEW_STATION); |
1069 | CMD(add_mpath, NEW_MPATH); | |
24bdd9f4 | 1070 | CMD(update_mesh_config, SET_MESH_CONFIG); |
8fdc621d | 1071 | CMD(change_bss, SET_BSS); |
636a5d36 JM |
1072 | CMD(auth, AUTHENTICATE); |
1073 | CMD(assoc, ASSOCIATE); | |
1074 | CMD(deauth, DEAUTHENTICATE); | |
1075 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 1076 | CMD(join_ibss, JOIN_IBSS); |
29cbe68c | 1077 | CMD(join_mesh, JOIN_MESH); |
67fbb16b SO |
1078 | CMD(set_pmksa, SET_PMKSA); |
1079 | CMD(del_pmksa, DEL_PMKSA); | |
1080 | CMD(flush_pmksa, FLUSH_PMKSA); | |
7c4ef712 JB |
1081 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
1082 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
13ae75b1 | 1083 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 1084 | CMD(mgmt_tx, FRAME); |
f7ca38df | 1085 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
5be83de5 | 1086 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 | 1087 | i++; |
9360ffd1 DM |
1088 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) |
1089 | goto nla_put_failure; | |
463d0183 | 1090 | } |
e8c9bd5b | 1091 | if (dev->ops->set_monitor_channel || dev->ops->start_ap || |
cc1d2806 | 1092 | dev->ops->join_mesh) { |
aa430da4 JB |
1093 | i++; |
1094 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1095 | goto nla_put_failure; | |
1096 | } | |
e8347eba | 1097 | CMD(set_wds_peer, SET_WDS_PEER); |
109086ce AN |
1098 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
1099 | CMD(tdls_mgmt, TDLS_MGMT); | |
1100 | CMD(tdls_oper, TDLS_OPER); | |
1101 | } | |
807f8a8c LC |
1102 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
1103 | CMD(sched_scan_start, START_SCHED_SCAN); | |
7f6cf311 | 1104 | CMD(probe_client, PROBE_CLIENT); |
1d9d9213 | 1105 | CMD(set_noack_map, SET_NOACK_MAP); |
5e760230 JB |
1106 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
1107 | i++; | |
9360ffd1 DM |
1108 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) |
1109 | goto nla_put_failure; | |
5e760230 | 1110 | } |
98104fde | 1111 | CMD(start_p2p_device, START_P2P_DEVICE); |
8fdc621d | 1112 | |
4745fc09 KV |
1113 | #ifdef CONFIG_NL80211_TESTMODE |
1114 | CMD(testmode_cmd, TESTMODE); | |
1115 | #endif | |
1116 | ||
8fdc621d | 1117 | #undef CMD |
b23aa676 | 1118 | |
6829c878 | 1119 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 | 1120 | i++; |
9360ffd1 DM |
1121 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) |
1122 | goto nla_put_failure; | |
b23aa676 SO |
1123 | } |
1124 | ||
6829c878 | 1125 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 | 1126 | i++; |
9360ffd1 DM |
1127 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) |
1128 | goto nla_put_failure; | |
b23aa676 SO |
1129 | } |
1130 | ||
8fdc621d JB |
1131 | nla_nest_end(msg, nl_cmds); |
1132 | ||
7c4ef712 | 1133 | if (dev->ops->remain_on_channel && |
9360ffd1 DM |
1134 | (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && |
1135 | nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1136 | dev->wiphy.max_remain_on_channel_duration)) | |
1137 | goto nla_put_failure; | |
a293911d | 1138 | |
9360ffd1 DM |
1139 | if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
1140 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) | |
1141 | goto nla_put_failure; | |
f7ca38df | 1142 | |
2e161f78 JB |
1143 | if (mgmt_stypes) { |
1144 | u16 stypes; | |
1145 | struct nlattr *nl_ftypes, *nl_ifs; | |
1146 | enum nl80211_iftype ift; | |
1147 | ||
1148 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
1149 | if (!nl_ifs) | |
1150 | goto nla_put_failure; | |
1151 | ||
1152 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1153 | nl_ftypes = nla_nest_start(msg, ift); | |
1154 | if (!nl_ftypes) | |
1155 | goto nla_put_failure; | |
1156 | i = 0; | |
1157 | stypes = mgmt_stypes[ift].tx; | |
1158 | while (stypes) { | |
9360ffd1 DM |
1159 | if ((stypes & 1) && |
1160 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1161 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1162 | goto nla_put_failure; | |
2e161f78 JB |
1163 | stypes >>= 1; |
1164 | i++; | |
1165 | } | |
1166 | nla_nest_end(msg, nl_ftypes); | |
1167 | } | |
1168 | ||
74b70a4e JB |
1169 | nla_nest_end(msg, nl_ifs); |
1170 | ||
2e161f78 JB |
1171 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1172 | if (!nl_ifs) | |
1173 | goto nla_put_failure; | |
1174 | ||
1175 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
1176 | nl_ftypes = nla_nest_start(msg, ift); | |
1177 | if (!nl_ftypes) | |
1178 | goto nla_put_failure; | |
1179 | i = 0; | |
1180 | stypes = mgmt_stypes[ift].rx; | |
1181 | while (stypes) { | |
9360ffd1 DM |
1182 | if ((stypes & 1) && |
1183 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1184 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1185 | goto nla_put_failure; | |
2e161f78 JB |
1186 | stypes >>= 1; |
1187 | i++; | |
1188 | } | |
1189 | nla_nest_end(msg, nl_ftypes); | |
1190 | } | |
1191 | nla_nest_end(msg, nl_ifs); | |
1192 | } | |
1193 | ||
dfb89c56 | 1194 | #ifdef CONFIG_PM |
ff1b6e69 JB |
1195 | if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { |
1196 | struct nlattr *nl_wowlan; | |
1197 | ||
1198 | nl_wowlan = nla_nest_start(msg, | |
1199 | NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
1200 | if (!nl_wowlan) | |
1201 | goto nla_put_failure; | |
1202 | ||
9360ffd1 DM |
1203 | if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) && |
1204 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
1205 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) && | |
1206 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
1207 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) && | |
1208 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
1209 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && | |
1210 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || | |
1211 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && | |
1212 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
1213 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && | |
1214 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
1215 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && | |
1216 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
1217 | ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) && | |
1218 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
1219 | goto nla_put_failure; | |
ff1b6e69 JB |
1220 | if (dev->wiphy.wowlan.n_patterns) { |
1221 | struct nl80211_wowlan_pattern_support pat = { | |
1222 | .max_patterns = dev->wiphy.wowlan.n_patterns, | |
1223 | .min_pattern_len = | |
1224 | dev->wiphy.wowlan.pattern_min_len, | |
1225 | .max_pattern_len = | |
1226 | dev->wiphy.wowlan.pattern_max_len, | |
1227 | }; | |
9360ffd1 DM |
1228 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1229 | sizeof(pat), &pat)) | |
1230 | goto nla_put_failure; | |
ff1b6e69 JB |
1231 | } |
1232 | ||
1233 | nla_nest_end(msg, nl_wowlan); | |
1234 | } | |
dfb89c56 | 1235 | #endif |
ff1b6e69 | 1236 | |
7527a782 JB |
1237 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
1238 | dev->wiphy.software_iftypes)) | |
1239 | goto nla_put_failure; | |
1240 | ||
1241 | if (nl80211_put_iface_combinations(&dev->wiphy, msg)) | |
1242 | goto nla_put_failure; | |
1243 | ||
9360ffd1 DM |
1244 | if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
1245 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1246 | dev->wiphy.ap_sme_capa)) | |
1247 | goto nla_put_failure; | |
562a7480 | 1248 | |
9360ffd1 DM |
1249 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, |
1250 | dev->wiphy.features)) | |
1251 | goto nla_put_failure; | |
1f074bd8 | 1252 | |
9360ffd1 DM |
1253 | if (dev->wiphy.ht_capa_mod_mask && |
1254 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1255 | sizeof(*dev->wiphy.ht_capa_mod_mask), | |
1256 | dev->wiphy.ht_capa_mod_mask)) | |
1257 | goto nla_put_failure; | |
7e7c8926 | 1258 | |
55682965 JB |
1259 | return genlmsg_end(msg, hdr); |
1260 | ||
1261 | nla_put_failure: | |
bc3ed28c TG |
1262 | genlmsg_cancel(msg, hdr); |
1263 | return -EMSGSIZE; | |
55682965 JB |
1264 | } |
1265 | ||
1266 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1267 | { | |
1268 | int idx = 0; | |
1269 | int start = cb->args[0]; | |
1270 | struct cfg80211_registered_device *dev; | |
1271 | ||
a1794390 | 1272 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 1273 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
1274 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
1275 | continue; | |
b4637271 | 1276 | if (++idx <= start) |
55682965 | 1277 | continue; |
15e47304 | 1278 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 1279 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
b4637271 JV |
1280 | dev) < 0) { |
1281 | idx--; | |
55682965 | 1282 | break; |
b4637271 | 1283 | } |
55682965 | 1284 | } |
a1794390 | 1285 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1286 | |
1287 | cb->args[0] = idx; | |
1288 | ||
1289 | return skb->len; | |
1290 | } | |
1291 | ||
1292 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1293 | { | |
1294 | struct sk_buff *msg; | |
4c476991 | 1295 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 1296 | |
fd2120ca | 1297 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1298 | if (!msg) |
4c476991 | 1299 | return -ENOMEM; |
55682965 | 1300 | |
15e47304 | 1301 | if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) { |
4c476991 JB |
1302 | nlmsg_free(msg); |
1303 | return -ENOBUFS; | |
1304 | } | |
55682965 | 1305 | |
134e6375 | 1306 | return genlmsg_reply(msg, info); |
55682965 JB |
1307 | } |
1308 | ||
31888487 JM |
1309 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1310 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1311 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1312 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1313 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1314 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1315 | }; | |
1316 | ||
1317 | static int parse_txq_params(struct nlattr *tb[], | |
1318 | struct ieee80211_txq_params *txq_params) | |
1319 | { | |
a3304b0a | 1320 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1321 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1322 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1323 | return -EINVAL; | |
1324 | ||
a3304b0a | 1325 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1326 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1327 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1328 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1329 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1330 | ||
a3304b0a JB |
1331 | if (txq_params->ac >= NL80211_NUM_ACS) |
1332 | return -EINVAL; | |
1333 | ||
31888487 JM |
1334 | return 0; |
1335 | } | |
1336 | ||
f444de05 JB |
1337 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1338 | { | |
1339 | /* | |
cc1d2806 JB |
1340 | * You can only set the channel explicitly for WDS interfaces, |
1341 | * all others have their channel managed via their respective | |
1342 | * "establish a connection" command (connect, join, ...) | |
1343 | * | |
1344 | * For AP/GO and mesh mode, the channel can be set with the | |
1345 | * channel userspace API, but is only stored and passed to the | |
1346 | * low-level driver when the AP starts or the mesh is joined. | |
1347 | * This is for backward compatibility, userspace can also give | |
1348 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1349 | * |
1350 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1351 | * whatever else is going on, so they have their own special |
1352 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1353 | */ |
1354 | return !wdev || | |
1355 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1356 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1357 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1358 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1359 | } |
1360 | ||
cd6c6598 JB |
1361 | static bool nl80211_valid_channel_type(struct genl_info *info, |
1362 | enum nl80211_channel_type *channel_type) | |
1363 | { | |
1364 | enum nl80211_channel_type tmp; | |
1365 | ||
1366 | if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) | |
1367 | return false; | |
1368 | ||
1369 | tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1370 | if (tmp != NL80211_CHAN_NO_HT && | |
1371 | tmp != NL80211_CHAN_HT20 && | |
1372 | tmp != NL80211_CHAN_HT40PLUS && | |
1373 | tmp != NL80211_CHAN_HT40MINUS) | |
1374 | return false; | |
1375 | ||
1376 | if (channel_type) | |
1377 | *channel_type = tmp; | |
1378 | ||
1379 | return true; | |
1380 | } | |
1381 | ||
f444de05 JB |
1382 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
1383 | struct wireless_dev *wdev, | |
1384 | struct genl_info *info) | |
1385 | { | |
aa430da4 | 1386 | struct ieee80211_channel *channel; |
f444de05 JB |
1387 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
1388 | u32 freq; | |
1389 | int result; | |
e8c9bd5b JB |
1390 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
1391 | ||
1392 | if (wdev) | |
1393 | iftype = wdev->iftype; | |
f444de05 JB |
1394 | |
1395 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1396 | return -EINVAL; | |
1397 | ||
1398 | if (!nl80211_can_set_dev_channel(wdev)) | |
1399 | return -EOPNOTSUPP; | |
1400 | ||
cd6c6598 JB |
1401 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && |
1402 | !nl80211_valid_channel_type(info, &channel_type)) | |
1403 | return -EINVAL; | |
f444de05 JB |
1404 | |
1405 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1406 | ||
1407 | mutex_lock(&rdev->devlist_mtx); | |
e8c9bd5b | 1408 | switch (iftype) { |
aa430da4 JB |
1409 | case NL80211_IFTYPE_AP: |
1410 | case NL80211_IFTYPE_P2P_GO: | |
1411 | if (wdev->beacon_interval) { | |
1412 | result = -EBUSY; | |
1413 | break; | |
1414 | } | |
1415 | channel = rdev_freq_to_chan(rdev, freq, channel_type); | |
1416 | if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy, | |
1417 | channel, | |
1418 | channel_type)) { | |
1419 | result = -EINVAL; | |
1420 | break; | |
1421 | } | |
1422 | wdev->preset_chan = channel; | |
1423 | wdev->preset_chantype = channel_type; | |
1424 | result = 0; | |
1425 | break; | |
cc1d2806 JB |
1426 | case NL80211_IFTYPE_MESH_POINT: |
1427 | result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type); | |
1428 | break; | |
e8c9bd5b JB |
1429 | case NL80211_IFTYPE_MONITOR: |
1430 | result = cfg80211_set_monitor_channel(rdev, freq, channel_type); | |
1431 | break; | |
aa430da4 | 1432 | default: |
e8c9bd5b | 1433 | result = -EINVAL; |
f444de05 JB |
1434 | } |
1435 | mutex_unlock(&rdev->devlist_mtx); | |
1436 | ||
1437 | return result; | |
1438 | } | |
1439 | ||
1440 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1441 | { | |
4c476991 JB |
1442 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1443 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 1444 | |
4c476991 | 1445 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
1446 | } |
1447 | ||
e8347eba BJ |
1448 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1449 | { | |
43b19952 JB |
1450 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1451 | struct net_device *dev = info->user_ptr[1]; | |
1452 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 1453 | const u8 *bssid; |
e8347eba BJ |
1454 | |
1455 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1456 | return -EINVAL; | |
1457 | ||
43b19952 JB |
1458 | if (netif_running(dev)) |
1459 | return -EBUSY; | |
e8347eba | 1460 | |
43b19952 JB |
1461 | if (!rdev->ops->set_wds_peer) |
1462 | return -EOPNOTSUPP; | |
e8347eba | 1463 | |
43b19952 JB |
1464 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1465 | return -EOPNOTSUPP; | |
e8347eba BJ |
1466 | |
1467 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
43b19952 | 1468 | return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); |
e8347eba BJ |
1469 | } |
1470 | ||
1471 | ||
55682965 JB |
1472 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1473 | { | |
1474 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
1475 | struct net_device *netdev = NULL; |
1476 | struct wireless_dev *wdev; | |
a1e567c8 | 1477 | int result = 0, rem_txq_params = 0; |
31888487 | 1478 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
1479 | u32 changed; |
1480 | u8 retry_short = 0, retry_long = 0; | |
1481 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 1482 | u8 coverage_class = 0; |
55682965 | 1483 | |
f444de05 JB |
1484 | /* |
1485 | * Try to find the wiphy and netdev. Normally this | |
1486 | * function shouldn't need the netdev, but this is | |
1487 | * done for backward compatibility -- previously | |
1488 | * setting the channel was done per wiphy, but now | |
1489 | * it is per netdev. Previous userland like hostapd | |
1490 | * also passed a netdev to set_wiphy, so that it is | |
1491 | * possible to let that go to the right netdev! | |
1492 | */ | |
4bbf4d56 JB |
1493 | mutex_lock(&cfg80211_mutex); |
1494 | ||
f444de05 JB |
1495 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
1496 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
1497 | ||
1498 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
1499 | if (netdev && netdev->ieee80211_ptr) { | |
1500 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
1501 | mutex_lock(&rdev->mtx); | |
1502 | } else | |
1503 | netdev = NULL; | |
4bbf4d56 JB |
1504 | } |
1505 | ||
f444de05 | 1506 | if (!netdev) { |
878d9ec7 JB |
1507 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
1508 | info->attrs); | |
f444de05 JB |
1509 | if (IS_ERR(rdev)) { |
1510 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 1511 | return PTR_ERR(rdev); |
f444de05 JB |
1512 | } |
1513 | wdev = NULL; | |
1514 | netdev = NULL; | |
1515 | result = 0; | |
1516 | ||
1517 | mutex_lock(&rdev->mtx); | |
cc1d2806 | 1518 | } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) |
f444de05 JB |
1519 | wdev = netdev->ieee80211_ptr; |
1520 | else | |
1521 | wdev = NULL; | |
1522 | ||
1523 | /* | |
1524 | * end workaround code, by now the rdev is available | |
1525 | * and locked, and wdev may or may not be NULL. | |
1526 | */ | |
4bbf4d56 JB |
1527 | |
1528 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
1529 | result = cfg80211_dev_rename( |
1530 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
1531 | |
1532 | mutex_unlock(&cfg80211_mutex); | |
1533 | ||
1534 | if (result) | |
1535 | goto bad_res; | |
31888487 JM |
1536 | |
1537 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
1538 | struct ieee80211_txq_params txq_params; | |
1539 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
1540 | ||
1541 | if (!rdev->ops->set_txq_params) { | |
1542 | result = -EOPNOTSUPP; | |
1543 | goto bad_res; | |
1544 | } | |
1545 | ||
f70f01c2 EP |
1546 | if (!netdev) { |
1547 | result = -EINVAL; | |
1548 | goto bad_res; | |
1549 | } | |
1550 | ||
133a3ff2 JB |
1551 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
1552 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
1553 | result = -EINVAL; | |
1554 | goto bad_res; | |
1555 | } | |
1556 | ||
2b5f8b0b JB |
1557 | if (!netif_running(netdev)) { |
1558 | result = -ENETDOWN; | |
1559 | goto bad_res; | |
1560 | } | |
1561 | ||
31888487 JM |
1562 | nla_for_each_nested(nl_txq_params, |
1563 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1564 | rem_txq_params) { | |
1565 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1566 | nla_data(nl_txq_params), | |
1567 | nla_len(nl_txq_params), | |
1568 | txq_params_policy); | |
1569 | result = parse_txq_params(tb, &txq_params); | |
1570 | if (result) | |
1571 | goto bad_res; | |
1572 | ||
1573 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
f70f01c2 | 1574 | netdev, |
31888487 JM |
1575 | &txq_params); |
1576 | if (result) | |
1577 | goto bad_res; | |
1578 | } | |
1579 | } | |
55682965 | 1580 | |
72bdcf34 | 1581 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 1582 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
1583 | if (result) |
1584 | goto bad_res; | |
1585 | } | |
1586 | ||
98d2ff8b JO |
1587 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
1588 | enum nl80211_tx_power_setting type; | |
1589 | int idx, mbm = 0; | |
1590 | ||
1591 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 1592 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1593 | goto bad_res; |
1594 | } | |
1595 | ||
1596 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1597 | type = nla_get_u32(info->attrs[idx]); | |
1598 | ||
1599 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1600 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1601 | result = -EINVAL; | |
1602 | goto bad_res; | |
1603 | } | |
1604 | ||
1605 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1606 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1607 | mbm = nla_get_u32(info->attrs[idx]); | |
1608 | } | |
1609 | ||
1610 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
1611 | if (result) | |
1612 | goto bad_res; | |
1613 | } | |
1614 | ||
afe0cbf8 BR |
1615 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1616 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1617 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
1618 | if ((!rdev->wiphy.available_antennas_tx && |
1619 | !rdev->wiphy.available_antennas_rx) || | |
1620 | !rdev->ops->set_antenna) { | |
afe0cbf8 BR |
1621 | result = -EOPNOTSUPP; |
1622 | goto bad_res; | |
1623 | } | |
1624 | ||
1625 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1626 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1627 | ||
a7ffac95 | 1628 | /* reject antenna configurations which don't match the |
7f531e03 BR |
1629 | * available antenna masks, except for the "all" mask */ |
1630 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
1631 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { | |
a7ffac95 BR |
1632 | result = -EINVAL; |
1633 | goto bad_res; | |
1634 | } | |
1635 | ||
7f531e03 BR |
1636 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
1637 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 1638 | |
afe0cbf8 BR |
1639 | result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant); |
1640 | if (result) | |
1641 | goto bad_res; | |
1642 | } | |
1643 | ||
b9a5f8ca JM |
1644 | changed = 0; |
1645 | ||
1646 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1647 | retry_short = nla_get_u8( | |
1648 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1649 | if (retry_short == 0) { | |
1650 | result = -EINVAL; | |
1651 | goto bad_res; | |
1652 | } | |
1653 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1654 | } | |
1655 | ||
1656 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1657 | retry_long = nla_get_u8( | |
1658 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1659 | if (retry_long == 0) { | |
1660 | result = -EINVAL; | |
1661 | goto bad_res; | |
1662 | } | |
1663 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1664 | } | |
1665 | ||
1666 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1667 | frag_threshold = nla_get_u32( | |
1668 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1669 | if (frag_threshold < 256) { | |
1670 | result = -EINVAL; | |
1671 | goto bad_res; | |
1672 | } | |
1673 | if (frag_threshold != (u32) -1) { | |
1674 | /* | |
1675 | * Fragments (apart from the last one) are required to | |
1676 | * have even length. Make the fragmentation code | |
1677 | * simpler by stripping LSB should someone try to use | |
1678 | * odd threshold value. | |
1679 | */ | |
1680 | frag_threshold &= ~0x1; | |
1681 | } | |
1682 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1683 | } | |
1684 | ||
1685 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1686 | rts_threshold = nla_get_u32( | |
1687 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1688 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1689 | } | |
1690 | ||
81077e82 LT |
1691 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1692 | coverage_class = nla_get_u8( | |
1693 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1694 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1695 | } | |
1696 | ||
b9a5f8ca JM |
1697 | if (changed) { |
1698 | u8 old_retry_short, old_retry_long; | |
1699 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1700 | u8 old_coverage_class; |
b9a5f8ca JM |
1701 | |
1702 | if (!rdev->ops->set_wiphy_params) { | |
1703 | result = -EOPNOTSUPP; | |
1704 | goto bad_res; | |
1705 | } | |
1706 | ||
1707 | old_retry_short = rdev->wiphy.retry_short; | |
1708 | old_retry_long = rdev->wiphy.retry_long; | |
1709 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1710 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1711 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1712 | |
1713 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1714 | rdev->wiphy.retry_short = retry_short; | |
1715 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1716 | rdev->wiphy.retry_long = retry_long; | |
1717 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1718 | rdev->wiphy.frag_threshold = frag_threshold; | |
1719 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1720 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1721 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1722 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1723 | |
1724 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1725 | if (result) { | |
1726 | rdev->wiphy.retry_short = old_retry_short; | |
1727 | rdev->wiphy.retry_long = old_retry_long; | |
1728 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1729 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1730 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1731 | } |
1732 | } | |
72bdcf34 | 1733 | |
306d6112 | 1734 | bad_res: |
4bbf4d56 | 1735 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1736 | if (netdev) |
1737 | dev_put(netdev); | |
55682965 JB |
1738 | return result; |
1739 | } | |
1740 | ||
71bbc994 JB |
1741 | static inline u64 wdev_id(struct wireless_dev *wdev) |
1742 | { | |
1743 | return (u64)wdev->identifier | | |
1744 | ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32); | |
1745 | } | |
55682965 | 1746 | |
15e47304 | 1747 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
d726405a | 1748 | struct cfg80211_registered_device *rdev, |
72fb2abc | 1749 | struct wireless_dev *wdev) |
55682965 | 1750 | { |
72fb2abc | 1751 | struct net_device *dev = wdev->netdev; |
55682965 JB |
1752 | void *hdr; |
1753 | ||
15e47304 | 1754 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); |
55682965 JB |
1755 | if (!hdr) |
1756 | return -1; | |
1757 | ||
72fb2abc JB |
1758 | if (dev && |
1759 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
98104fde | 1760 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
72fb2abc JB |
1761 | goto nla_put_failure; |
1762 | ||
1763 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
1764 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
71bbc994 | 1765 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
98104fde | 1766 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
9360ffd1 DM |
1767 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1768 | rdev->devlist_generation ^ | |
1769 | (cfg80211_rdev_list_generation << 2))) | |
1770 | goto nla_put_failure; | |
f5ea9120 | 1771 | |
5b7ccaf3 JB |
1772 | if (rdev->ops->get_channel) { |
1773 | struct ieee80211_channel *chan; | |
1774 | enum nl80211_channel_type channel_type; | |
1775 | ||
1776 | chan = rdev->ops->get_channel(&rdev->wiphy, wdev, | |
1777 | &channel_type); | |
1778 | if (chan && | |
1779 | (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, | |
1780 | chan->center_freq) || | |
1781 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
1782 | channel_type))) | |
59ef43e6 | 1783 | goto nla_put_failure; |
d91df0e3 PF |
1784 | } |
1785 | ||
55682965 JB |
1786 | return genlmsg_end(msg, hdr); |
1787 | ||
1788 | nla_put_failure: | |
bc3ed28c TG |
1789 | genlmsg_cancel(msg, hdr); |
1790 | return -EMSGSIZE; | |
55682965 JB |
1791 | } |
1792 | ||
1793 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1794 | { | |
1795 | int wp_idx = 0; | |
1796 | int if_idx = 0; | |
1797 | int wp_start = cb->args[0]; | |
1798 | int if_start = cb->args[1]; | |
f5ea9120 | 1799 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1800 | struct wireless_dev *wdev; |
1801 | ||
a1794390 | 1802 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1803 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1804 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1805 | continue; |
bba95fef JB |
1806 | if (wp_idx < wp_start) { |
1807 | wp_idx++; | |
55682965 | 1808 | continue; |
bba95fef | 1809 | } |
55682965 JB |
1810 | if_idx = 0; |
1811 | ||
f5ea9120 | 1812 | mutex_lock(&rdev->devlist_mtx); |
89a54e48 | 1813 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
bba95fef JB |
1814 | if (if_idx < if_start) { |
1815 | if_idx++; | |
55682965 | 1816 | continue; |
bba95fef | 1817 | } |
15e47304 | 1818 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 1819 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
72fb2abc | 1820 | rdev, wdev) < 0) { |
f5ea9120 | 1821 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1822 | goto out; |
1823 | } | |
1824 | if_idx++; | |
55682965 | 1825 | } |
f5ea9120 | 1826 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1827 | |
1828 | wp_idx++; | |
55682965 | 1829 | } |
bba95fef | 1830 | out: |
a1794390 | 1831 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1832 | |
1833 | cb->args[0] = wp_idx; | |
1834 | cb->args[1] = if_idx; | |
1835 | ||
1836 | return skb->len; | |
1837 | } | |
1838 | ||
1839 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1840 | { | |
1841 | struct sk_buff *msg; | |
4c476991 | 1842 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
72fb2abc | 1843 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 1844 | |
fd2120ca | 1845 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1846 | if (!msg) |
4c476991 | 1847 | return -ENOMEM; |
55682965 | 1848 | |
15e47304 | 1849 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
72fb2abc | 1850 | dev, wdev) < 0) { |
4c476991 JB |
1851 | nlmsg_free(msg); |
1852 | return -ENOBUFS; | |
1853 | } | |
55682965 | 1854 | |
134e6375 | 1855 | return genlmsg_reply(msg, info); |
55682965 JB |
1856 | } |
1857 | ||
66f7ac50 MW |
1858 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1859 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1860 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1861 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1862 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1863 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1864 | }; | |
1865 | ||
1866 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1867 | { | |
1868 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1869 | int flag; | |
1870 | ||
1871 | *mntrflags = 0; | |
1872 | ||
1873 | if (!nla) | |
1874 | return -EINVAL; | |
1875 | ||
1876 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1877 | nla, mntr_flags_policy)) | |
1878 | return -EINVAL; | |
1879 | ||
1880 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1881 | if (flags[flag]) | |
1882 | *mntrflags |= (1<<flag); | |
1883 | ||
1884 | return 0; | |
1885 | } | |
1886 | ||
9bc383de | 1887 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1888 | struct net_device *netdev, u8 use_4addr, |
1889 | enum nl80211_iftype iftype) | |
9bc383de | 1890 | { |
ad4bb6f8 | 1891 | if (!use_4addr) { |
f350a0a8 | 1892 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1893 | return -EBUSY; |
9bc383de | 1894 | return 0; |
ad4bb6f8 | 1895 | } |
9bc383de JB |
1896 | |
1897 | switch (iftype) { | |
1898 | case NL80211_IFTYPE_AP_VLAN: | |
1899 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1900 | return 0; | |
1901 | break; | |
1902 | case NL80211_IFTYPE_STATION: | |
1903 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1904 | return 0; | |
1905 | break; | |
1906 | default: | |
1907 | break; | |
1908 | } | |
1909 | ||
1910 | return -EOPNOTSUPP; | |
1911 | } | |
1912 | ||
55682965 JB |
1913 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1914 | { | |
4c476991 | 1915 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1916 | struct vif_params params; |
e36d56b6 | 1917 | int err; |
04a773ad | 1918 | enum nl80211_iftype otype, ntype; |
4c476991 | 1919 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1920 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1921 | bool change = false; |
55682965 | 1922 | |
2ec600d6 LCC |
1923 | memset(¶ms, 0, sizeof(params)); |
1924 | ||
04a773ad | 1925 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1926 | |
723b038d | 1927 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1928 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1929 | if (otype != ntype) |
ac7f9cfa | 1930 | change = true; |
4c476991 JB |
1931 | if (ntype > NL80211_IFTYPE_MAX) |
1932 | return -EINVAL; | |
723b038d JB |
1933 | } |
1934 | ||
92ffe055 | 1935 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
1936 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1937 | ||
4c476991 JB |
1938 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1939 | return -EINVAL; | |
29cbe68c JB |
1940 | if (netif_running(dev)) |
1941 | return -EBUSY; | |
1942 | ||
1943 | wdev_lock(wdev); | |
1944 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1945 | IEEE80211_MAX_MESH_ID_LEN); | |
1946 | wdev->mesh_id_up_len = | |
1947 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1948 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1949 | wdev->mesh_id_up_len); | |
1950 | wdev_unlock(wdev); | |
2ec600d6 LCC |
1951 | } |
1952 | ||
8b787643 FF |
1953 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1954 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1955 | change = true; | |
ad4bb6f8 | 1956 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1957 | if (err) |
4c476991 | 1958 | return err; |
8b787643 FF |
1959 | } else { |
1960 | params.use_4addr = -1; | |
1961 | } | |
1962 | ||
92ffe055 | 1963 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1964 | if (ntype != NL80211_IFTYPE_MONITOR) |
1965 | return -EINVAL; | |
92ffe055 JB |
1966 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1967 | &_flags); | |
ac7f9cfa | 1968 | if (err) |
4c476991 | 1969 | return err; |
ac7f9cfa JB |
1970 | |
1971 | flags = &_flags; | |
1972 | change = true; | |
92ffe055 | 1973 | } |
3b85875a | 1974 | |
ac7f9cfa | 1975 | if (change) |
3d54d255 | 1976 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1977 | else |
1978 | err = 0; | |
60719ffd | 1979 | |
9bc383de JB |
1980 | if (!err && params.use_4addr != -1) |
1981 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1982 | ||
55682965 JB |
1983 | return err; |
1984 | } | |
1985 | ||
1986 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1987 | { | |
4c476991 | 1988 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1989 | struct vif_params params; |
84efbb84 | 1990 | struct wireless_dev *wdev; |
1c90f9d4 | 1991 | struct sk_buff *msg; |
55682965 JB |
1992 | int err; |
1993 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1994 | u32 flags; |
55682965 | 1995 | |
2ec600d6 LCC |
1996 | memset(¶ms, 0, sizeof(params)); |
1997 | ||
55682965 JB |
1998 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1999 | return -EINVAL; | |
2000 | ||
2001 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2002 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2003 | if (type > NL80211_IFTYPE_MAX) | |
2004 | return -EINVAL; | |
2005 | } | |
2006 | ||
79c97e97 | 2007 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
2008 | !(rdev->wiphy.interface_modes & (1 << type))) |
2009 | return -EOPNOTSUPP; | |
55682965 | 2010 | |
9bc383de | 2011 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 2012 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 2013 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 2014 | if (err) |
4c476991 | 2015 | return err; |
9bc383de | 2016 | } |
8b787643 | 2017 | |
1c90f9d4 JB |
2018 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2019 | if (!msg) | |
2020 | return -ENOMEM; | |
2021 | ||
66f7ac50 MW |
2022 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2023 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2024 | &flags); | |
84efbb84 | 2025 | wdev = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 2026 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 2027 | type, err ? NULL : &flags, ¶ms); |
1c90f9d4 JB |
2028 | if (IS_ERR(wdev)) { |
2029 | nlmsg_free(msg); | |
84efbb84 | 2030 | return PTR_ERR(wdev); |
1c90f9d4 | 2031 | } |
2ec600d6 | 2032 | |
98104fde JB |
2033 | switch (type) { |
2034 | case NL80211_IFTYPE_MESH_POINT: | |
2035 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2036 | break; | |
29cbe68c JB |
2037 | wdev_lock(wdev); |
2038 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2039 | IEEE80211_MAX_MESH_ID_LEN); | |
2040 | wdev->mesh_id_up_len = | |
2041 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2042 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2043 | wdev->mesh_id_up_len); | |
2044 | wdev_unlock(wdev); | |
98104fde JB |
2045 | break; |
2046 | case NL80211_IFTYPE_P2P_DEVICE: | |
2047 | /* | |
2048 | * P2P Device doesn't have a netdev, so doesn't go | |
2049 | * through the netdev notifier and must be added here | |
2050 | */ | |
2051 | mutex_init(&wdev->mtx); | |
2052 | INIT_LIST_HEAD(&wdev->event_list); | |
2053 | spin_lock_init(&wdev->event_lock); | |
2054 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2055 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2056 | ||
2057 | mutex_lock(&rdev->devlist_mtx); | |
2058 | wdev->identifier = ++rdev->wdev_id; | |
2059 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2060 | rdev->devlist_generation++; | |
2061 | mutex_unlock(&rdev->devlist_mtx); | |
2062 | break; | |
2063 | default: | |
2064 | break; | |
29cbe68c JB |
2065 | } |
2066 | ||
15e47304 | 2067 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
1c90f9d4 JB |
2068 | rdev, wdev) < 0) { |
2069 | nlmsg_free(msg); | |
2070 | return -ENOBUFS; | |
2071 | } | |
2072 | ||
2073 | return genlmsg_reply(msg, info); | |
55682965 JB |
2074 | } |
2075 | ||
2076 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2077 | { | |
4c476991 | 2078 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
84efbb84 | 2079 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2080 | |
4c476991 JB |
2081 | if (!rdev->ops->del_virtual_intf) |
2082 | return -EOPNOTSUPP; | |
55682965 | 2083 | |
84efbb84 JB |
2084 | /* |
2085 | * If we remove a wireless device without a netdev then clear | |
2086 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2087 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2088 | * since the wdev has been freed, unlike with a netdev where | |
2089 | * we need the dev_put() for the netdev to really be freed. | |
2090 | */ | |
2091 | if (!wdev->netdev) | |
2092 | info->user_ptr[1] = NULL; | |
2093 | ||
2094 | return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev); | |
55682965 JB |
2095 | } |
2096 | ||
1d9d9213 SW |
2097 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2098 | { | |
2099 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2100 | struct net_device *dev = info->user_ptr[1]; | |
2101 | u16 noack_map; | |
2102 | ||
2103 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2104 | return -EINVAL; | |
2105 | ||
2106 | if (!rdev->ops->set_noack_map) | |
2107 | return -EOPNOTSUPP; | |
2108 | ||
2109 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2110 | ||
2111 | return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map); | |
2112 | } | |
2113 | ||
41ade00f JB |
2114 | struct get_key_cookie { |
2115 | struct sk_buff *msg; | |
2116 | int error; | |
b9454e83 | 2117 | int idx; |
41ade00f JB |
2118 | }; |
2119 | ||
2120 | static void get_key_callback(void *c, struct key_params *params) | |
2121 | { | |
b9454e83 | 2122 | struct nlattr *key; |
41ade00f JB |
2123 | struct get_key_cookie *cookie = c; |
2124 | ||
9360ffd1 DM |
2125 | if ((params->key && |
2126 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2127 | params->key_len, params->key)) || | |
2128 | (params->seq && | |
2129 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2130 | params->seq_len, params->seq)) || | |
2131 | (params->cipher && | |
2132 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2133 | params->cipher))) | |
2134 | goto nla_put_failure; | |
41ade00f | 2135 | |
b9454e83 JB |
2136 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2137 | if (!key) | |
2138 | goto nla_put_failure; | |
2139 | ||
9360ffd1 DM |
2140 | if ((params->key && |
2141 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2142 | params->key_len, params->key)) || | |
2143 | (params->seq && | |
2144 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2145 | params->seq_len, params->seq)) || | |
2146 | (params->cipher && | |
2147 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2148 | params->cipher))) | |
2149 | goto nla_put_failure; | |
b9454e83 | 2150 | |
9360ffd1 DM |
2151 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2152 | goto nla_put_failure; | |
b9454e83 JB |
2153 | |
2154 | nla_nest_end(cookie->msg, key); | |
2155 | ||
41ade00f JB |
2156 | return; |
2157 | nla_put_failure: | |
2158 | cookie->error = 1; | |
2159 | } | |
2160 | ||
2161 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2162 | { | |
4c476991 | 2163 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2164 | int err; |
4c476991 | 2165 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2166 | u8 key_idx = 0; |
e31b8213 JB |
2167 | const u8 *mac_addr = NULL; |
2168 | bool pairwise; | |
41ade00f JB |
2169 | struct get_key_cookie cookie = { |
2170 | .error = 0, | |
2171 | }; | |
2172 | void *hdr; | |
2173 | struct sk_buff *msg; | |
2174 | ||
2175 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2176 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2177 | ||
3cfcf6ac | 2178 | if (key_idx > 5) |
41ade00f JB |
2179 | return -EINVAL; |
2180 | ||
2181 | if (info->attrs[NL80211_ATTR_MAC]) | |
2182 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2183 | ||
e31b8213 JB |
2184 | pairwise = !!mac_addr; |
2185 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2186 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2187 | if (kt >= NUM_NL80211_KEYTYPES) | |
2188 | return -EINVAL; | |
2189 | if (kt != NL80211_KEYTYPE_GROUP && | |
2190 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2191 | return -EINVAL; | |
2192 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2193 | } | |
2194 | ||
4c476991 JB |
2195 | if (!rdev->ops->get_key) |
2196 | return -EOPNOTSUPP; | |
41ade00f | 2197 | |
fd2120ca | 2198 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2199 | if (!msg) |
2200 | return -ENOMEM; | |
41ade00f | 2201 | |
15e47304 | 2202 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
41ade00f | 2203 | NL80211_CMD_NEW_KEY); |
4c476991 JB |
2204 | if (IS_ERR(hdr)) |
2205 | return PTR_ERR(hdr); | |
41ade00f JB |
2206 | |
2207 | cookie.msg = msg; | |
b9454e83 | 2208 | cookie.idx = key_idx; |
41ade00f | 2209 | |
9360ffd1 DM |
2210 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2211 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2212 | goto nla_put_failure; | |
2213 | if (mac_addr && | |
2214 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2215 | goto nla_put_failure; | |
41ade00f | 2216 | |
e31b8213 JB |
2217 | if (pairwise && mac_addr && |
2218 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2219 | return -ENOENT; | |
2220 | ||
2221 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, | |
2222 | mac_addr, &cookie, get_key_callback); | |
41ade00f JB |
2223 | |
2224 | if (err) | |
6c95e2a2 | 2225 | goto free_msg; |
41ade00f JB |
2226 | |
2227 | if (cookie.error) | |
2228 | goto nla_put_failure; | |
2229 | ||
2230 | genlmsg_end(msg, hdr); | |
4c476991 | 2231 | return genlmsg_reply(msg, info); |
41ade00f JB |
2232 | |
2233 | nla_put_failure: | |
2234 | err = -ENOBUFS; | |
6c95e2a2 | 2235 | free_msg: |
41ade00f | 2236 | nlmsg_free(msg); |
41ade00f JB |
2237 | return err; |
2238 | } | |
2239 | ||
2240 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2241 | { | |
4c476991 | 2242 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2243 | struct key_parse key; |
41ade00f | 2244 | int err; |
4c476991 | 2245 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2246 | |
b9454e83 JB |
2247 | err = nl80211_parse_key(info, &key); |
2248 | if (err) | |
2249 | return err; | |
41ade00f | 2250 | |
b9454e83 | 2251 | if (key.idx < 0) |
41ade00f JB |
2252 | return -EINVAL; |
2253 | ||
b9454e83 JB |
2254 | /* only support setting default key */ |
2255 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2256 | return -EINVAL; |
2257 | ||
dbd2fd65 | 2258 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2259 | |
dbd2fd65 JB |
2260 | if (key.def) { |
2261 | if (!rdev->ops->set_default_key) { | |
2262 | err = -EOPNOTSUPP; | |
2263 | goto out; | |
2264 | } | |
41ade00f | 2265 | |
dbd2fd65 JB |
2266 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2267 | if (err) | |
2268 | goto out; | |
2269 | ||
dbd2fd65 JB |
2270 | err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx, |
2271 | key.def_uni, key.def_multi); | |
2272 | ||
2273 | if (err) | |
2274 | goto out; | |
fffd0934 | 2275 | |
3d23e349 | 2276 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2277 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2278 | #endif | |
2279 | } else { | |
2280 | if (key.def_uni || !key.def_multi) { | |
2281 | err = -EINVAL; | |
2282 | goto out; | |
2283 | } | |
2284 | ||
2285 | if (!rdev->ops->set_default_mgmt_key) { | |
2286 | err = -EOPNOTSUPP; | |
2287 | goto out; | |
2288 | } | |
2289 | ||
2290 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2291 | if (err) | |
2292 | goto out; | |
2293 | ||
2294 | err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, | |
2295 | dev, key.idx); | |
2296 | if (err) | |
2297 | goto out; | |
2298 | ||
2299 | #ifdef CONFIG_CFG80211_WEXT | |
2300 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 2301 | #endif |
dbd2fd65 JB |
2302 | } |
2303 | ||
2304 | out: | |
fffd0934 | 2305 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2306 | |
41ade00f JB |
2307 | return err; |
2308 | } | |
2309 | ||
2310 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2311 | { | |
4c476991 | 2312 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 2313 | int err; |
4c476991 | 2314 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 2315 | struct key_parse key; |
e31b8213 | 2316 | const u8 *mac_addr = NULL; |
41ade00f | 2317 | |
b9454e83 JB |
2318 | err = nl80211_parse_key(info, &key); |
2319 | if (err) | |
2320 | return err; | |
41ade00f | 2321 | |
b9454e83 | 2322 | if (!key.p.key) |
41ade00f JB |
2323 | return -EINVAL; |
2324 | ||
41ade00f JB |
2325 | if (info->attrs[NL80211_ATTR_MAC]) |
2326 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2327 | ||
e31b8213 JB |
2328 | if (key.type == -1) { |
2329 | if (mac_addr) | |
2330 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2331 | else | |
2332 | key.type = NL80211_KEYTYPE_GROUP; | |
2333 | } | |
2334 | ||
2335 | /* for now */ | |
2336 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2337 | key.type != NL80211_KEYTYPE_GROUP) | |
2338 | return -EINVAL; | |
2339 | ||
4c476991 JB |
2340 | if (!rdev->ops->add_key) |
2341 | return -EOPNOTSUPP; | |
25e47c18 | 2342 | |
e31b8213 JB |
2343 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2344 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2345 | mac_addr)) | |
4c476991 | 2346 | return -EINVAL; |
41ade00f | 2347 | |
fffd0934 JB |
2348 | wdev_lock(dev->ieee80211_ptr); |
2349 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2350 | if (!err) | |
2351 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
e31b8213 | 2352 | key.type == NL80211_KEYTYPE_PAIRWISE, |
fffd0934 JB |
2353 | mac_addr, &key.p); |
2354 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 2355 | |
41ade00f JB |
2356 | return err; |
2357 | } | |
2358 | ||
2359 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2360 | { | |
4c476991 | 2361 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2362 | int err; |
4c476991 | 2363 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2364 | u8 *mac_addr = NULL; |
b9454e83 | 2365 | struct key_parse key; |
41ade00f | 2366 | |
b9454e83 JB |
2367 | err = nl80211_parse_key(info, &key); |
2368 | if (err) | |
2369 | return err; | |
41ade00f JB |
2370 | |
2371 | if (info->attrs[NL80211_ATTR_MAC]) | |
2372 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2373 | ||
e31b8213 JB |
2374 | if (key.type == -1) { |
2375 | if (mac_addr) | |
2376 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2377 | else | |
2378 | key.type = NL80211_KEYTYPE_GROUP; | |
2379 | } | |
2380 | ||
2381 | /* for now */ | |
2382 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2383 | key.type != NL80211_KEYTYPE_GROUP) | |
2384 | return -EINVAL; | |
2385 | ||
4c476991 JB |
2386 | if (!rdev->ops->del_key) |
2387 | return -EOPNOTSUPP; | |
41ade00f | 2388 | |
fffd0934 JB |
2389 | wdev_lock(dev->ieee80211_ptr); |
2390 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
2391 | |
2392 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2393 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2394 | err = -ENOENT; | |
2395 | ||
fffd0934 | 2396 | if (!err) |
e31b8213 JB |
2397 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, |
2398 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2399 | mac_addr); | |
41ade00f | 2400 | |
3d23e349 | 2401 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 2402 | if (!err) { |
b9454e83 | 2403 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 2404 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 2405 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
2406 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2407 | } | |
2408 | #endif | |
fffd0934 | 2409 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 2410 | |
41ade00f JB |
2411 | return err; |
2412 | } | |
2413 | ||
8860020e JB |
2414 | static int nl80211_parse_beacon(struct genl_info *info, |
2415 | struct cfg80211_beacon_data *bcn) | |
ed1b6cc7 | 2416 | { |
8860020e | 2417 | bool haveinfo = false; |
ed1b6cc7 | 2418 | |
9946ecfb JM |
2419 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) || |
2420 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) || | |
2421 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
2422 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
2423 | return -EINVAL; |
2424 | ||
8860020e | 2425 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 2426 | |
ed1b6cc7 | 2427 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
8860020e JB |
2428 | bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
2429 | bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2430 | if (!bcn->head_len) | |
2431 | return -EINVAL; | |
2432 | haveinfo = true; | |
ed1b6cc7 JB |
2433 | } |
2434 | ||
2435 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
8860020e JB |
2436 | bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
2437 | bcn->tail_len = | |
ed1b6cc7 | 2438 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
8860020e | 2439 | haveinfo = true; |
ed1b6cc7 JB |
2440 | } |
2441 | ||
4c476991 JB |
2442 | if (!haveinfo) |
2443 | return -EINVAL; | |
3b85875a | 2444 | |
9946ecfb | 2445 | if (info->attrs[NL80211_ATTR_IE]) { |
8860020e JB |
2446 | bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]); |
2447 | bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
2448 | } |
2449 | ||
2450 | if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
8860020e | 2451 | bcn->proberesp_ies = |
9946ecfb | 2452 | nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 2453 | bcn->proberesp_ies_len = |
9946ecfb JM |
2454 | nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
2455 | } | |
2456 | ||
2457 | if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
8860020e | 2458 | bcn->assocresp_ies = |
9946ecfb | 2459 | nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 2460 | bcn->assocresp_ies_len = |
9946ecfb JM |
2461 | nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
2462 | } | |
2463 | ||
00f740e1 | 2464 | if (info->attrs[NL80211_ATTR_PROBE_RESP]) { |
8860020e | 2465 | bcn->probe_resp = |
00f740e1 | 2466 | nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]); |
8860020e | 2467 | bcn->probe_resp_len = |
00f740e1 AN |
2468 | nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]); |
2469 | } | |
2470 | ||
8860020e JB |
2471 | return 0; |
2472 | } | |
2473 | ||
46c1dd0c FF |
2474 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
2475 | struct cfg80211_ap_settings *params) | |
2476 | { | |
2477 | struct wireless_dev *wdev; | |
2478 | bool ret = false; | |
2479 | ||
2480 | mutex_lock(&rdev->devlist_mtx); | |
2481 | ||
89a54e48 | 2482 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
46c1dd0c FF |
2483 | if (wdev->iftype != NL80211_IFTYPE_AP && |
2484 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
2485 | continue; | |
2486 | ||
2487 | if (!wdev->preset_chan) | |
2488 | continue; | |
2489 | ||
2490 | params->channel = wdev->preset_chan; | |
2491 | params->channel_type = wdev->preset_chantype; | |
2492 | ret = true; | |
2493 | break; | |
2494 | } | |
2495 | ||
2496 | mutex_unlock(&rdev->devlist_mtx); | |
2497 | ||
2498 | return ret; | |
2499 | } | |
2500 | ||
e39e5b5e JM |
2501 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
2502 | enum nl80211_auth_type auth_type, | |
2503 | enum nl80211_commands cmd) | |
2504 | { | |
2505 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
2506 | return false; | |
2507 | ||
2508 | switch (cmd) { | |
2509 | case NL80211_CMD_AUTHENTICATE: | |
2510 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
2511 | auth_type == NL80211_AUTHTYPE_SAE) | |
2512 | return false; | |
2513 | return true; | |
2514 | case NL80211_CMD_CONNECT: | |
2515 | case NL80211_CMD_START_AP: | |
2516 | /* SAE not supported yet */ | |
2517 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
2518 | return false; | |
2519 | return true; | |
2520 | default: | |
2521 | return false; | |
2522 | } | |
2523 | } | |
2524 | ||
8860020e JB |
2525 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
2526 | { | |
2527 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2528 | struct net_device *dev = info->user_ptr[1]; | |
2529 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2530 | struct cfg80211_ap_settings params; | |
2531 | int err; | |
2532 | ||
2533 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2534 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2535 | return -EOPNOTSUPP; | |
2536 | ||
2537 | if (!rdev->ops->start_ap) | |
2538 | return -EOPNOTSUPP; | |
2539 | ||
2540 | if (wdev->beacon_interval) | |
2541 | return -EALREADY; | |
2542 | ||
2543 | memset(¶ms, 0, sizeof(params)); | |
2544 | ||
2545 | /* these are required for START_AP */ | |
2546 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
2547 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
2548 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
2549 | return -EINVAL; | |
2550 | ||
2551 | err = nl80211_parse_beacon(info, ¶ms.beacon); | |
2552 | if (err) | |
2553 | return err; | |
2554 | ||
2555 | params.beacon_interval = | |
2556 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
2557 | params.dtim_period = | |
2558 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
2559 | ||
2560 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
2561 | if (err) | |
2562 | return err; | |
2563 | ||
2564 | /* | |
2565 | * In theory, some of these attributes should be required here | |
2566 | * but since they were not used when the command was originally | |
2567 | * added, keep them optional for old user space programs to let | |
2568 | * them continue to work with drivers that do not need the | |
2569 | * additional information -- drivers must check! | |
2570 | */ | |
2571 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2572 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2573 | params.ssid_len = | |
2574 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2575 | if (params.ssid_len == 0 || | |
2576 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
2577 | return -EINVAL; | |
2578 | } | |
2579 | ||
2580 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
2581 | params.hidden_ssid = nla_get_u32( | |
2582 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
2583 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
2584 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
2585 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
2586 | return -EINVAL; | |
2587 | } | |
2588 | ||
2589 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
2590 | ||
2591 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2592 | params.auth_type = nla_get_u32( | |
2593 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
2594 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
2595 | NL80211_CMD_START_AP)) | |
8860020e JB |
2596 | return -EINVAL; |
2597 | } else | |
2598 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
2599 | ||
2600 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
2601 | NL80211_MAX_NR_CIPHER_SUITES); | |
2602 | if (err) | |
2603 | return err; | |
2604 | ||
1b658f11 VT |
2605 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
2606 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
2607 | return -EOPNOTSUPP; | |
2608 | params.inactivity_timeout = nla_get_u16( | |
2609 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
2610 | } | |
2611 | ||
aa430da4 JB |
2612 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
2613 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
2614 | ||
2615 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
2616 | !nl80211_valid_channel_type(info, &channel_type)) | |
2617 | return -EINVAL; | |
2618 | ||
2619 | params.channel = rdev_freq_to_chan(rdev, | |
2620 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
2621 | channel_type); | |
2622 | if (!params.channel) | |
2623 | return -EINVAL; | |
2624 | params.channel_type = channel_type; | |
2625 | } else if (wdev->preset_chan) { | |
2626 | params.channel = wdev->preset_chan; | |
2627 | params.channel_type = wdev->preset_chantype; | |
46c1dd0c | 2628 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
aa430da4 JB |
2629 | return -EINVAL; |
2630 | ||
2631 | if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel, | |
2632 | params.channel_type)) | |
2633 | return -EINVAL; | |
2634 | ||
e4e32459 MK |
2635 | mutex_lock(&rdev->devlist_mtx); |
2636 | err = cfg80211_can_use_chan(rdev, wdev, params.channel, | |
2637 | CHAN_MODE_SHARED); | |
2638 | mutex_unlock(&rdev->devlist_mtx); | |
2639 | ||
2640 | if (err) | |
2641 | return err; | |
2642 | ||
8860020e | 2643 | err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms); |
46c1dd0c FF |
2644 | if (!err) { |
2645 | wdev->preset_chan = params.channel; | |
2646 | wdev->preset_chantype = params.channel_type; | |
8860020e | 2647 | wdev->beacon_interval = params.beacon_interval; |
f4489ebe | 2648 | wdev->channel = params.channel; |
46c1dd0c | 2649 | } |
56d1893d | 2650 | return err; |
ed1b6cc7 JB |
2651 | } |
2652 | ||
8860020e JB |
2653 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
2654 | { | |
2655 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2656 | struct net_device *dev = info->user_ptr[1]; | |
2657 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2658 | struct cfg80211_beacon_data params; | |
2659 | int err; | |
2660 | ||
2661 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2662 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2663 | return -EOPNOTSUPP; | |
2664 | ||
2665 | if (!rdev->ops->change_beacon) | |
2666 | return -EOPNOTSUPP; | |
2667 | ||
2668 | if (!wdev->beacon_interval) | |
2669 | return -EINVAL; | |
2670 | ||
2671 | err = nl80211_parse_beacon(info, ¶ms); | |
2672 | if (err) | |
2673 | return err; | |
2674 | ||
2675 | return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms); | |
2676 | } | |
2677 | ||
2678 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 2679 | { |
4c476991 JB |
2680 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2681 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 2682 | |
60771780 | 2683 | return cfg80211_stop_ap(rdev, dev); |
ed1b6cc7 JB |
2684 | } |
2685 | ||
5727ef1b JB |
2686 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
2687 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
2688 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
2689 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 2690 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 2691 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 2692 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
2693 | }; |
2694 | ||
eccb8e8f | 2695 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 2696 | enum nl80211_iftype iftype, |
eccb8e8f | 2697 | struct station_parameters *params) |
5727ef1b JB |
2698 | { |
2699 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 2700 | struct nlattr *nla; |
5727ef1b JB |
2701 | int flag; |
2702 | ||
eccb8e8f JB |
2703 | /* |
2704 | * Try parsing the new attribute first so userspace | |
2705 | * can specify both for older kernels. | |
2706 | */ | |
2707 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
2708 | if (nla) { | |
2709 | struct nl80211_sta_flag_update *sta_flags; | |
2710 | ||
2711 | sta_flags = nla_data(nla); | |
2712 | params->sta_flags_mask = sta_flags->mask; | |
2713 | params->sta_flags_set = sta_flags->set; | |
2714 | if ((params->sta_flags_mask | | |
2715 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
2716 | return -EINVAL; | |
2717 | return 0; | |
2718 | } | |
2719 | ||
2720 | /* if present, parse the old attribute */ | |
5727ef1b | 2721 | |
eccb8e8f | 2722 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
2723 | if (!nla) |
2724 | return 0; | |
2725 | ||
2726 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
2727 | nla, sta_flags_policy)) | |
2728 | return -EINVAL; | |
2729 | ||
bdd3ae3d JB |
2730 | /* |
2731 | * Only allow certain flags for interface types so that | |
2732 | * other attributes are silently ignored. Remember that | |
2733 | * this is backward compatibility code with old userspace | |
2734 | * and shouldn't be hit in other cases anyway. | |
2735 | */ | |
2736 | switch (iftype) { | |
2737 | case NL80211_IFTYPE_AP: | |
2738 | case NL80211_IFTYPE_AP_VLAN: | |
2739 | case NL80211_IFTYPE_P2P_GO: | |
2740 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2741 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2742 | BIT(NL80211_STA_FLAG_WME) | | |
2743 | BIT(NL80211_STA_FLAG_MFP); | |
2744 | break; | |
2745 | case NL80211_IFTYPE_P2P_CLIENT: | |
2746 | case NL80211_IFTYPE_STATION: | |
2747 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2748 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2749 | break; | |
2750 | case NL80211_IFTYPE_MESH_POINT: | |
2751 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
2752 | BIT(NL80211_STA_FLAG_MFP) | | |
2753 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
2754 | default: | |
2755 | return -EINVAL; | |
2756 | } | |
5727ef1b | 2757 | |
3383b5a6 JB |
2758 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
2759 | if (flags[flag]) { | |
eccb8e8f | 2760 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 2761 | |
3383b5a6 JB |
2762 | /* no longer support new API additions in old API */ |
2763 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
2764 | return -EINVAL; | |
2765 | } | |
2766 | } | |
2767 | ||
5727ef1b JB |
2768 | return 0; |
2769 | } | |
2770 | ||
c8dcfd8a FF |
2771 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
2772 | int attr) | |
2773 | { | |
2774 | struct nlattr *rate; | |
8eb41c8d VK |
2775 | u32 bitrate; |
2776 | u16 bitrate_compat; | |
c8dcfd8a FF |
2777 | |
2778 | rate = nla_nest_start(msg, attr); | |
2779 | if (!rate) | |
2780 | goto nla_put_failure; | |
2781 | ||
2782 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
2783 | bitrate = cfg80211_calculate_bitrate(info); | |
8eb41c8d VK |
2784 | /* report 16-bit bitrate only if we can */ |
2785 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
9360ffd1 | 2786 | if ((bitrate > 0 && |
8eb41c8d VK |
2787 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) || |
2788 | (bitrate_compat > 0 && | |
2789 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) || | |
9360ffd1 DM |
2790 | ((info->flags & RATE_INFO_FLAGS_MCS) && |
2791 | nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) || | |
2792 | ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) && | |
2793 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) || | |
2794 | ((info->flags & RATE_INFO_FLAGS_SHORT_GI) && | |
2795 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))) | |
2796 | goto nla_put_failure; | |
c8dcfd8a FF |
2797 | |
2798 | nla_nest_end(msg, rate); | |
2799 | return true; | |
2800 | ||
2801 | nla_put_failure: | |
2802 | return false; | |
2803 | } | |
2804 | ||
15e47304 | 2805 | static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, |
66266b3a JL |
2806 | int flags, |
2807 | struct cfg80211_registered_device *rdev, | |
2808 | struct net_device *dev, | |
98b62183 | 2809 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
2810 | { |
2811 | void *hdr; | |
f4263c98 | 2812 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc | 2813 | |
15e47304 | 2814 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
fd5b74dc JB |
2815 | if (!hdr) |
2816 | return -1; | |
2817 | ||
9360ffd1 DM |
2818 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2819 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
2820 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
2821 | goto nla_put_failure; | |
f5ea9120 | 2822 | |
2ec600d6 LCC |
2823 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
2824 | if (!sinfoattr) | |
fd5b74dc | 2825 | goto nla_put_failure; |
9360ffd1 DM |
2826 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && |
2827 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
2828 | sinfo->connected_time)) | |
2829 | goto nla_put_failure; | |
2830 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && | |
2831 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
2832 | sinfo->inactive_time)) | |
2833 | goto nla_put_failure; | |
2834 | if ((sinfo->filled & STATION_INFO_RX_BYTES) && | |
2835 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, | |
2836 | sinfo->rx_bytes)) | |
2837 | goto nla_put_failure; | |
2838 | if ((sinfo->filled & STATION_INFO_TX_BYTES) && | |
2839 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, | |
2840 | sinfo->tx_bytes)) | |
2841 | goto nla_put_failure; | |
2842 | if ((sinfo->filled & STATION_INFO_LLID) && | |
2843 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) | |
2844 | goto nla_put_failure; | |
2845 | if ((sinfo->filled & STATION_INFO_PLID) && | |
2846 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) | |
2847 | goto nla_put_failure; | |
2848 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && | |
2849 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, | |
2850 | sinfo->plink_state)) | |
2851 | goto nla_put_failure; | |
66266b3a JL |
2852 | switch (rdev->wiphy.signal_type) { |
2853 | case CFG80211_SIGNAL_TYPE_MBM: | |
9360ffd1 DM |
2854 | if ((sinfo->filled & STATION_INFO_SIGNAL) && |
2855 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, | |
2856 | sinfo->signal)) | |
2857 | goto nla_put_failure; | |
2858 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && | |
2859 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
2860 | sinfo->signal_avg)) | |
2861 | goto nla_put_failure; | |
66266b3a JL |
2862 | break; |
2863 | default: | |
2864 | break; | |
2865 | } | |
420e7fab | 2866 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
c8dcfd8a FF |
2867 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
2868 | NL80211_STA_INFO_TX_BITRATE)) | |
2869 | goto nla_put_failure; | |
2870 | } | |
2871 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
2872 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
2873 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 2874 | goto nla_put_failure; |
420e7fab | 2875 | } |
9360ffd1 DM |
2876 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && |
2877 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, | |
2878 | sinfo->rx_packets)) | |
2879 | goto nla_put_failure; | |
2880 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && | |
2881 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, | |
2882 | sinfo->tx_packets)) | |
2883 | goto nla_put_failure; | |
2884 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && | |
2885 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, | |
2886 | sinfo->tx_retries)) | |
2887 | goto nla_put_failure; | |
2888 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && | |
2889 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, | |
2890 | sinfo->tx_failed)) | |
2891 | goto nla_put_failure; | |
2892 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && | |
2893 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
2894 | sinfo->beacon_loss_count)) | |
2895 | goto nla_put_failure; | |
f4263c98 PS |
2896 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
2897 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
2898 | if (!bss_param) | |
2899 | goto nla_put_failure; | |
2900 | ||
9360ffd1 DM |
2901 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
2902 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
2903 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
2904 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
2905 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
2906 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
2907 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
2908 | sinfo->bss_param.dtim_period) || | |
2909 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
2910 | sinfo->bss_param.beacon_interval)) | |
2911 | goto nla_put_failure; | |
f4263c98 PS |
2912 | |
2913 | nla_nest_end(msg, bss_param); | |
2914 | } | |
9360ffd1 DM |
2915 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && |
2916 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
2917 | sizeof(struct nl80211_sta_flag_update), | |
2918 | &sinfo->sta_flags)) | |
2919 | goto nla_put_failure; | |
7eab0f64 JL |
2920 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && |
2921 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, | |
2922 | sinfo->t_offset)) | |
2923 | goto nla_put_failure; | |
2ec600d6 | 2924 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 2925 | |
9360ffd1 DM |
2926 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && |
2927 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
2928 | sinfo->assoc_req_ies)) | |
2929 | goto nla_put_failure; | |
50d3dfb7 | 2930 | |
fd5b74dc JB |
2931 | return genlmsg_end(msg, hdr); |
2932 | ||
2933 | nla_put_failure: | |
bc3ed28c TG |
2934 | genlmsg_cancel(msg, hdr); |
2935 | return -EMSGSIZE; | |
fd5b74dc JB |
2936 | } |
2937 | ||
2ec600d6 | 2938 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 2939 | struct netlink_callback *cb) |
2ec600d6 | 2940 | { |
2ec600d6 LCC |
2941 | struct station_info sinfo; |
2942 | struct cfg80211_registered_device *dev; | |
bba95fef | 2943 | struct net_device *netdev; |
2ec600d6 | 2944 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 2945 | int sta_idx = cb->args[1]; |
2ec600d6 | 2946 | int err; |
2ec600d6 | 2947 | |
67748893 JB |
2948 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2949 | if (err) | |
2950 | return err; | |
bba95fef JB |
2951 | |
2952 | if (!dev->ops->dump_station) { | |
eec60b03 | 2953 | err = -EOPNOTSUPP; |
bba95fef JB |
2954 | goto out_err; |
2955 | } | |
2956 | ||
bba95fef | 2957 | while (1) { |
f612cedf | 2958 | memset(&sinfo, 0, sizeof(sinfo)); |
bba95fef JB |
2959 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, |
2960 | mac_addr, &sinfo); | |
2961 | if (err == -ENOENT) | |
2962 | break; | |
2963 | if (err) | |
3b85875a | 2964 | goto out_err; |
bba95fef JB |
2965 | |
2966 | if (nl80211_send_station(skb, | |
15e47304 | 2967 | NETLINK_CB(cb->skb).portid, |
bba95fef | 2968 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
66266b3a | 2969 | dev, netdev, mac_addr, |
bba95fef JB |
2970 | &sinfo) < 0) |
2971 | goto out; | |
2972 | ||
2973 | sta_idx++; | |
2974 | } | |
2975 | ||
2976 | ||
2977 | out: | |
2978 | cb->args[1] = sta_idx; | |
2979 | err = skb->len; | |
bba95fef | 2980 | out_err: |
67748893 | 2981 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
2982 | |
2983 | return err; | |
2ec600d6 | 2984 | } |
fd5b74dc | 2985 | |
5727ef1b JB |
2986 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
2987 | { | |
4c476991 JB |
2988 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2989 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 2990 | struct station_info sinfo; |
fd5b74dc JB |
2991 | struct sk_buff *msg; |
2992 | u8 *mac_addr = NULL; | |
4c476991 | 2993 | int err; |
fd5b74dc | 2994 | |
2ec600d6 | 2995 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2996 | |
2997 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2998 | return -EINVAL; | |
2999 | ||
3000 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3001 | ||
4c476991 JB |
3002 | if (!rdev->ops->get_station) |
3003 | return -EOPNOTSUPP; | |
3b85875a | 3004 | |
4c476991 | 3005 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 3006 | if (err) |
4c476991 | 3007 | return err; |
2ec600d6 | 3008 | |
fd2120ca | 3009 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 3010 | if (!msg) |
4c476991 | 3011 | return -ENOMEM; |
fd5b74dc | 3012 | |
15e47304 | 3013 | if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0, |
66266b3a | 3014 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
3015 | nlmsg_free(msg); |
3016 | return -ENOBUFS; | |
3017 | } | |
3b85875a | 3018 | |
4c476991 | 3019 | return genlmsg_reply(msg, info); |
5727ef1b JB |
3020 | } |
3021 | ||
3022 | /* | |
c258d2de | 3023 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 3024 | */ |
80b99899 JB |
3025 | static struct net_device *get_vlan(struct genl_info *info, |
3026 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 3027 | { |
463d0183 | 3028 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
3029 | struct net_device *v; |
3030 | int ret; | |
3031 | ||
3032 | if (!vlanattr) | |
3033 | return NULL; | |
3034 | ||
3035 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
3036 | if (!v) | |
3037 | return ERR_PTR(-ENODEV); | |
3038 | ||
3039 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
3040 | ret = -EINVAL; | |
3041 | goto error; | |
5727ef1b | 3042 | } |
80b99899 JB |
3043 | |
3044 | if (!netif_running(v)) { | |
3045 | ret = -ENETDOWN; | |
3046 | goto error; | |
3047 | } | |
3048 | ||
3049 | return v; | |
3050 | error: | |
3051 | dev_put(v); | |
3052 | return ERR_PTR(ret); | |
5727ef1b JB |
3053 | } |
3054 | ||
3055 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
3056 | { | |
4c476991 | 3057 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 3058 | int err; |
4c476991 | 3059 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
3060 | struct station_parameters params; |
3061 | u8 *mac_addr = NULL; | |
3062 | ||
3063 | memset(¶ms, 0, sizeof(params)); | |
3064 | ||
3065 | params.listen_interval = -1; | |
57cf8043 | 3066 | params.plink_state = -1; |
5727ef1b JB |
3067 | |
3068 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
3069 | return -EINVAL; | |
3070 | ||
3071 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3072 | return -EINVAL; | |
3073 | ||
3074 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3075 | ||
3076 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
3077 | params.supported_rates = | |
3078 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3079 | params.supported_rates_len = | |
3080 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3081 | } | |
3082 | ||
3083 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
3084 | params.listen_interval = | |
3085 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
3086 | ||
36aedc90 JM |
3087 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
3088 | params.ht_capa = | |
3089 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
3090 | ||
bdd90d5e JB |
3091 | if (!rdev->ops->change_station) |
3092 | return -EOPNOTSUPP; | |
3093 | ||
bdd3ae3d | 3094 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
3095 | return -EINVAL; |
3096 | ||
2ec600d6 LCC |
3097 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
3098 | params.plink_action = | |
3099 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3100 | ||
9c3990aa JC |
3101 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) |
3102 | params.plink_state = | |
3103 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
3104 | ||
a97f4424 JB |
3105 | switch (dev->ieee80211_ptr->iftype) { |
3106 | case NL80211_IFTYPE_AP: | |
3107 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 3108 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
3109 | /* disallow mesh-specific things */ |
3110 | if (params.plink_action) | |
bdd90d5e JB |
3111 | return -EINVAL; |
3112 | ||
3113 | /* TDLS can't be set, ... */ | |
3114 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3115 | return -EINVAL; | |
3116 | /* | |
3117 | * ... but don't bother the driver with it. This works around | |
3118 | * a hostapd/wpa_supplicant issue -- it always includes the | |
3119 | * TLDS_PEER flag in the mask even for AP mode. | |
3120 | */ | |
3121 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3122 | ||
3123 | /* accept only the listed bits */ | |
3124 | if (params.sta_flags_mask & | |
3125 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3126 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3127 | BIT(NL80211_STA_FLAG_WME) | | |
3128 | BIT(NL80211_STA_FLAG_MFP))) | |
3129 | return -EINVAL; | |
3130 | ||
3131 | /* must be last in here for error handling */ | |
3132 | params.vlan = get_vlan(info, rdev); | |
3133 | if (IS_ERR(params.vlan)) | |
3134 | return PTR_ERR(params.vlan); | |
a97f4424 | 3135 | break; |
074ac8df | 3136 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 3137 | case NL80211_IFTYPE_STATION: |
bdd90d5e JB |
3138 | /* |
3139 | * Don't allow userspace to change the TDLS_PEER flag, | |
3140 | * but silently ignore attempts to change it since we | |
3141 | * don't have state here to verify that it doesn't try | |
3142 | * to change the flag. | |
3143 | */ | |
3144 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
267335d6 AQ |
3145 | /* fall through */ |
3146 | case NL80211_IFTYPE_ADHOC: | |
3147 | /* disallow things sta doesn't support */ | |
3148 | if (params.plink_action) | |
3149 | return -EINVAL; | |
3150 | if (params.ht_capa) | |
3151 | return -EINVAL; | |
3152 | if (params.listen_interval >= 0) | |
3153 | return -EINVAL; | |
bdd90d5e JB |
3154 | /* reject any changes other than AUTHORIZED */ |
3155 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
3156 | return -EINVAL; | |
a97f4424 JB |
3157 | break; |
3158 | case NL80211_IFTYPE_MESH_POINT: | |
3159 | /* disallow things mesh doesn't support */ | |
3160 | if (params.vlan) | |
bdd90d5e | 3161 | return -EINVAL; |
a97f4424 | 3162 | if (params.ht_capa) |
bdd90d5e | 3163 | return -EINVAL; |
a97f4424 | 3164 | if (params.listen_interval >= 0) |
bdd90d5e JB |
3165 | return -EINVAL; |
3166 | /* | |
3167 | * No special handling for TDLS here -- the userspace | |
3168 | * mesh code doesn't have this bug. | |
3169 | */ | |
b39c48fa JC |
3170 | if (params.sta_flags_mask & |
3171 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
8429828e | 3172 | BIT(NL80211_STA_FLAG_MFP) | |
b39c48fa | 3173 | BIT(NL80211_STA_FLAG_AUTHORIZED))) |
bdd90d5e | 3174 | return -EINVAL; |
a97f4424 JB |
3175 | break; |
3176 | default: | |
bdd90d5e | 3177 | return -EOPNOTSUPP; |
034d655e JB |
3178 | } |
3179 | ||
bdd90d5e | 3180 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3181 | |
79c97e97 | 3182 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b | 3183 | |
5727ef1b JB |
3184 | if (params.vlan) |
3185 | dev_put(params.vlan); | |
3b85875a | 3186 | |
5727ef1b JB |
3187 | return err; |
3188 | } | |
3189 | ||
c75786c9 EP |
3190 | static struct nla_policy |
3191 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { | |
3192 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
3193 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
3194 | }; | |
3195 | ||
5727ef1b JB |
3196 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
3197 | { | |
4c476991 | 3198 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 3199 | int err; |
4c476991 | 3200 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
3201 | struct station_parameters params; |
3202 | u8 *mac_addr = NULL; | |
3203 | ||
3204 | memset(¶ms, 0, sizeof(params)); | |
3205 | ||
3206 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3207 | return -EINVAL; | |
3208 | ||
5727ef1b JB |
3209 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
3210 | return -EINVAL; | |
3211 | ||
3212 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
3213 | return -EINVAL; | |
3214 | ||
0e956c13 TLSC |
3215 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
3216 | return -EINVAL; | |
3217 | ||
5727ef1b JB |
3218 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
3219 | params.supported_rates = | |
3220 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3221 | params.supported_rates_len = | |
3222 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
3223 | params.listen_interval = | |
3224 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 3225 | |
0e956c13 TLSC |
3226 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
3227 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
3228 | return -EINVAL; | |
51b50fbe | 3229 | |
36aedc90 JM |
3230 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
3231 | params.ht_capa = | |
3232 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 3233 | |
f461be3e MP |
3234 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
3235 | params.vht_capa = | |
3236 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
3237 | ||
96b78dff JC |
3238 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
3239 | params.plink_action = | |
3240 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
3241 | ||
bdd90d5e JB |
3242 | if (!rdev->ops->add_station) |
3243 | return -EOPNOTSUPP; | |
3244 | ||
bdd3ae3d | 3245 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
3246 | return -EINVAL; |
3247 | ||
bdd90d5e JB |
3248 | switch (dev->ieee80211_ptr->iftype) { |
3249 | case NL80211_IFTYPE_AP: | |
3250 | case NL80211_IFTYPE_AP_VLAN: | |
3251 | case NL80211_IFTYPE_P2P_GO: | |
3252 | /* parse WME attributes if sta is WME capable */ | |
3253 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
3254 | (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) && | |
3255 | info->attrs[NL80211_ATTR_STA_WME]) { | |
3256 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
3257 | struct nlattr *nla; | |
3258 | ||
3259 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
3260 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
3261 | nl80211_sta_wme_policy); | |
3262 | if (err) | |
3263 | return err; | |
3264 | ||
3265 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
3266 | params.uapsd_queues = | |
3267 | nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
3268 | if (params.uapsd_queues & | |
3269 | ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
3270 | return -EINVAL; | |
c75786c9 | 3271 | |
bdd90d5e JB |
3272 | if (tb[NL80211_STA_WME_MAX_SP]) |
3273 | params.max_sp = | |
3274 | nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
c75786c9 | 3275 | |
bdd90d5e JB |
3276 | if (params.max_sp & |
3277 | ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
3278 | return -EINVAL; | |
4319e193 | 3279 | |
bdd90d5e JB |
3280 | params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
3281 | } | |
3282 | /* TDLS peers cannot be added */ | |
3283 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4319e193 | 3284 | return -EINVAL; |
bdd90d5e JB |
3285 | /* but don't bother the driver with it */ |
3286 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 3287 | |
bdd90d5e JB |
3288 | /* must be last in here for error handling */ |
3289 | params.vlan = get_vlan(info, rdev); | |
3290 | if (IS_ERR(params.vlan)) | |
3291 | return PTR_ERR(params.vlan); | |
3292 | break; | |
3293 | case NL80211_IFTYPE_MESH_POINT: | |
3294 | /* TDLS peers cannot be added */ | |
3295 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3296 | return -EINVAL; | |
3297 | break; | |
3298 | case NL80211_IFTYPE_STATION: | |
3299 | /* Only TDLS peers can be added */ | |
3300 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3301 | return -EINVAL; | |
3302 | /* Can only add if TDLS ... */ | |
3303 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
3304 | return -EOPNOTSUPP; | |
3305 | /* ... with external setup is supported */ | |
3306 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
3307 | return -EOPNOTSUPP; | |
3308 | break; | |
3309 | default: | |
3310 | return -EOPNOTSUPP; | |
c75786c9 EP |
3311 | } |
3312 | ||
bdd90d5e | 3313 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 3314 | |
79c97e97 | 3315 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b | 3316 | |
5727ef1b JB |
3317 | if (params.vlan) |
3318 | dev_put(params.vlan); | |
5727ef1b JB |
3319 | return err; |
3320 | } | |
3321 | ||
3322 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
3323 | { | |
4c476991 JB |
3324 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3325 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
3326 | u8 *mac_addr = NULL; |
3327 | ||
3328 | if (info->attrs[NL80211_ATTR_MAC]) | |
3329 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3330 | ||
e80cf853 | 3331 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 3332 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 3333 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
3334 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3335 | return -EINVAL; | |
5727ef1b | 3336 | |
4c476991 JB |
3337 | if (!rdev->ops->del_station) |
3338 | return -EOPNOTSUPP; | |
3b85875a | 3339 | |
4c476991 | 3340 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
3341 | } |
3342 | ||
15e47304 | 3343 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
2ec600d6 LCC |
3344 | int flags, struct net_device *dev, |
3345 | u8 *dst, u8 *next_hop, | |
3346 | struct mpath_info *pinfo) | |
3347 | { | |
3348 | void *hdr; | |
3349 | struct nlattr *pinfoattr; | |
3350 | ||
15e47304 | 3351 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
2ec600d6 LCC |
3352 | if (!hdr) |
3353 | return -1; | |
3354 | ||
9360ffd1 DM |
3355 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3356 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
3357 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
3358 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
3359 | goto nla_put_failure; | |
f5ea9120 | 3360 | |
2ec600d6 LCC |
3361 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
3362 | if (!pinfoattr) | |
3363 | goto nla_put_failure; | |
9360ffd1 DM |
3364 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
3365 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
3366 | pinfo->frame_qlen)) | |
3367 | goto nla_put_failure; | |
3368 | if (((pinfo->filled & MPATH_INFO_SN) && | |
3369 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
3370 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
3371 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
3372 | pinfo->metric)) || | |
3373 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
3374 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
3375 | pinfo->exptime)) || | |
3376 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
3377 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
3378 | pinfo->flags)) || | |
3379 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
3380 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
3381 | pinfo->discovery_timeout)) || | |
3382 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
3383 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
3384 | pinfo->discovery_retries))) | |
3385 | goto nla_put_failure; | |
2ec600d6 LCC |
3386 | |
3387 | nla_nest_end(msg, pinfoattr); | |
3388 | ||
3389 | return genlmsg_end(msg, hdr); | |
3390 | ||
3391 | nla_put_failure: | |
bc3ed28c TG |
3392 | genlmsg_cancel(msg, hdr); |
3393 | return -EMSGSIZE; | |
2ec600d6 LCC |
3394 | } |
3395 | ||
3396 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 3397 | struct netlink_callback *cb) |
2ec600d6 | 3398 | { |
2ec600d6 LCC |
3399 | struct mpath_info pinfo; |
3400 | struct cfg80211_registered_device *dev; | |
bba95fef | 3401 | struct net_device *netdev; |
2ec600d6 LCC |
3402 | u8 dst[ETH_ALEN]; |
3403 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 3404 | int path_idx = cb->args[1]; |
2ec600d6 | 3405 | int err; |
2ec600d6 | 3406 | |
67748893 JB |
3407 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3408 | if (err) | |
3409 | return err; | |
bba95fef JB |
3410 | |
3411 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 3412 | err = -EOPNOTSUPP; |
bba95fef JB |
3413 | goto out_err; |
3414 | } | |
3415 | ||
eec60b03 JM |
3416 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
3417 | err = -EOPNOTSUPP; | |
0448b5fc | 3418 | goto out_err; |
eec60b03 JM |
3419 | } |
3420 | ||
bba95fef JB |
3421 | while (1) { |
3422 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
3423 | dst, next_hop, &pinfo); | |
3424 | if (err == -ENOENT) | |
2ec600d6 | 3425 | break; |
bba95fef | 3426 | if (err) |
3b85875a | 3427 | goto out_err; |
2ec600d6 | 3428 | |
15e47304 | 3429 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
bba95fef JB |
3430 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
3431 | netdev, dst, next_hop, | |
3432 | &pinfo) < 0) | |
3433 | goto out; | |
2ec600d6 | 3434 | |
bba95fef | 3435 | path_idx++; |
2ec600d6 | 3436 | } |
2ec600d6 | 3437 | |
2ec600d6 | 3438 | |
bba95fef JB |
3439 | out: |
3440 | cb->args[1] = path_idx; | |
3441 | err = skb->len; | |
bba95fef | 3442 | out_err: |
67748893 | 3443 | nl80211_finish_netdev_dump(dev); |
bba95fef | 3444 | return err; |
2ec600d6 LCC |
3445 | } |
3446 | ||
3447 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
3448 | { | |
4c476991 | 3449 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 3450 | int err; |
4c476991 | 3451 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
3452 | struct mpath_info pinfo; |
3453 | struct sk_buff *msg; | |
3454 | u8 *dst = NULL; | |
3455 | u8 next_hop[ETH_ALEN]; | |
3456 | ||
3457 | memset(&pinfo, 0, sizeof(pinfo)); | |
3458 | ||
3459 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3460 | return -EINVAL; | |
3461 | ||
3462 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3463 | ||
4c476991 JB |
3464 | if (!rdev->ops->get_mpath) |
3465 | return -EOPNOTSUPP; | |
2ec600d6 | 3466 | |
4c476991 JB |
3467 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3468 | return -EOPNOTSUPP; | |
eec60b03 | 3469 | |
79c97e97 | 3470 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 3471 | if (err) |
4c476991 | 3472 | return err; |
2ec600d6 | 3473 | |
fd2120ca | 3474 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 3475 | if (!msg) |
4c476991 | 3476 | return -ENOMEM; |
2ec600d6 | 3477 | |
15e47304 | 3478 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4c476991 JB |
3479 | dev, dst, next_hop, &pinfo) < 0) { |
3480 | nlmsg_free(msg); | |
3481 | return -ENOBUFS; | |
3482 | } | |
3b85875a | 3483 | |
4c476991 | 3484 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
3485 | } |
3486 | ||
3487 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
3488 | { | |
4c476991 JB |
3489 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3490 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3491 | u8 *dst = NULL; |
3492 | u8 *next_hop = NULL; | |
3493 | ||
3494 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3495 | return -EINVAL; | |
3496 | ||
3497 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3498 | return -EINVAL; | |
3499 | ||
3500 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3501 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3502 | ||
4c476991 JB |
3503 | if (!rdev->ops->change_mpath) |
3504 | return -EOPNOTSUPP; | |
35a8efe1 | 3505 | |
4c476991 JB |
3506 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3507 | return -EOPNOTSUPP; | |
2ec600d6 | 3508 | |
4c476991 | 3509 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 3510 | } |
4c476991 | 3511 | |
2ec600d6 LCC |
3512 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
3513 | { | |
4c476991 JB |
3514 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3515 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3516 | u8 *dst = NULL; |
3517 | u8 *next_hop = NULL; | |
3518 | ||
3519 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3520 | return -EINVAL; | |
3521 | ||
3522 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3523 | return -EINVAL; | |
3524 | ||
3525 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3526 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3527 | ||
4c476991 JB |
3528 | if (!rdev->ops->add_mpath) |
3529 | return -EOPNOTSUPP; | |
35a8efe1 | 3530 | |
4c476991 JB |
3531 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3532 | return -EOPNOTSUPP; | |
2ec600d6 | 3533 | |
4c476991 | 3534 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
3535 | } |
3536 | ||
3537 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
3538 | { | |
4c476991 JB |
3539 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3540 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3541 | u8 *dst = NULL; |
3542 | ||
3543 | if (info->attrs[NL80211_ATTR_MAC]) | |
3544 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3545 | ||
4c476991 JB |
3546 | if (!rdev->ops->del_mpath) |
3547 | return -EOPNOTSUPP; | |
3b85875a | 3548 | |
4c476991 | 3549 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
3550 | } |
3551 | ||
9f1ba906 JM |
3552 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
3553 | { | |
4c476991 JB |
3554 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3555 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
3556 | struct bss_parameters params; |
3557 | ||
3558 | memset(¶ms, 0, sizeof(params)); | |
3559 | /* default to not changing parameters */ | |
3560 | params.use_cts_prot = -1; | |
3561 | params.use_short_preamble = -1; | |
3562 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 3563 | params.ap_isolate = -1; |
50b12f59 | 3564 | params.ht_opmode = -1; |
9f1ba906 JM |
3565 | |
3566 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
3567 | params.use_cts_prot = | |
3568 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
3569 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
3570 | params.use_short_preamble = | |
3571 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
3572 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
3573 | params.use_short_slot_time = | |
3574 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
3575 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3576 | params.basic_rates = | |
3577 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3578 | params.basic_rates_len = | |
3579 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3580 | } | |
fd8aaaf3 FF |
3581 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
3582 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
3583 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
3584 | params.ht_opmode = | |
3585 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 3586 | |
4c476991 JB |
3587 | if (!rdev->ops->change_bss) |
3588 | return -EOPNOTSUPP; | |
9f1ba906 | 3589 | |
074ac8df | 3590 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
3591 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3592 | return -EOPNOTSUPP; | |
3b85875a | 3593 | |
4c476991 | 3594 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
3595 | } |
3596 | ||
b54452b0 | 3597 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
3598 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
3599 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
3600 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
3601 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
3602 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
3603 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
3604 | }; | |
3605 | ||
3606 | static int parse_reg_rule(struct nlattr *tb[], | |
3607 | struct ieee80211_reg_rule *reg_rule) | |
3608 | { | |
3609 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
3610 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
3611 | ||
3612 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
3613 | return -EINVAL; | |
3614 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
3615 | return -EINVAL; | |
3616 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
3617 | return -EINVAL; | |
3618 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
3619 | return -EINVAL; | |
3620 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
3621 | return -EINVAL; | |
3622 | ||
3623 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
3624 | ||
3625 | freq_range->start_freq_khz = | |
3626 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
3627 | freq_range->end_freq_khz = | |
3628 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
3629 | freq_range->max_bandwidth_khz = | |
3630 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
3631 | ||
3632 | power_rule->max_eirp = | |
3633 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
3634 | ||
3635 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
3636 | power_rule->max_antenna_gain = | |
3637 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
3638 | ||
3639 | return 0; | |
3640 | } | |
3641 | ||
3642 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
3643 | { | |
3644 | int r; | |
3645 | char *data = NULL; | |
57b5ce07 | 3646 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
b2e1b302 | 3647 | |
80778f18 LR |
3648 | /* |
3649 | * You should only get this when cfg80211 hasn't yet initialized | |
3650 | * completely when built-in to the kernel right between the time | |
3651 | * window between nl80211_init() and regulatory_init(), if that is | |
3652 | * even possible. | |
3653 | */ | |
3654 | mutex_lock(&cfg80211_mutex); | |
3655 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
3656 | mutex_unlock(&cfg80211_mutex); |
3657 | return -EINPROGRESS; | |
80778f18 | 3658 | } |
fe33eb39 | 3659 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 3660 | |
fe33eb39 LR |
3661 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
3662 | return -EINVAL; | |
b2e1b302 LR |
3663 | |
3664 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3665 | ||
57b5ce07 LR |
3666 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
3667 | user_reg_hint_type = | |
3668 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
3669 | else | |
3670 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
3671 | ||
3672 | switch (user_reg_hint_type) { | |
3673 | case NL80211_USER_REG_HINT_USER: | |
3674 | case NL80211_USER_REG_HINT_CELL_BASE: | |
3675 | break; | |
3676 | default: | |
3677 | return -EINVAL; | |
3678 | } | |
3679 | ||
3680 | r = regulatory_hint_user(data, user_reg_hint_type); | |
fe33eb39 | 3681 | |
b2e1b302 LR |
3682 | return r; |
3683 | } | |
3684 | ||
24bdd9f4 | 3685 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 3686 | struct genl_info *info) |
93da9cc1 | 3687 | { |
4c476991 | 3688 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 3689 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
3690 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
3691 | struct mesh_config cur_params; | |
3692 | int err = 0; | |
93da9cc1 | 3693 | void *hdr; |
3694 | struct nlattr *pinfoattr; | |
3695 | struct sk_buff *msg; | |
3696 | ||
29cbe68c JB |
3697 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3698 | return -EOPNOTSUPP; | |
3699 | ||
24bdd9f4 | 3700 | if (!rdev->ops->get_mesh_config) |
4c476991 | 3701 | return -EOPNOTSUPP; |
f3f92586 | 3702 | |
29cbe68c JB |
3703 | wdev_lock(wdev); |
3704 | /* If not connected, get default parameters */ | |
3705 | if (!wdev->mesh_id_len) | |
3706 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
3707 | else | |
24bdd9f4 | 3708 | err = rdev->ops->get_mesh_config(&rdev->wiphy, dev, |
29cbe68c JB |
3709 | &cur_params); |
3710 | wdev_unlock(wdev); | |
3711 | ||
93da9cc1 | 3712 | if (err) |
4c476991 | 3713 | return err; |
93da9cc1 | 3714 | |
3715 | /* Draw up a netlink message to send back */ | |
fd2120ca | 3716 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
3717 | if (!msg) |
3718 | return -ENOMEM; | |
15e47304 | 3719 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
24bdd9f4 | 3720 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 3721 | if (!hdr) |
efe1cf0c | 3722 | goto out; |
24bdd9f4 | 3723 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 3724 | if (!pinfoattr) |
3725 | goto nla_put_failure; | |
9360ffd1 DM |
3726 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3727 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
3728 | cur_params.dot11MeshRetryTimeout) || | |
3729 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
3730 | cur_params.dot11MeshConfirmTimeout) || | |
3731 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
3732 | cur_params.dot11MeshHoldingTimeout) || | |
3733 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
3734 | cur_params.dot11MeshMaxPeerLinks) || | |
3735 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
3736 | cur_params.dot11MeshMaxRetries) || | |
3737 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
3738 | cur_params.dot11MeshTTL) || | |
3739 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
3740 | cur_params.element_ttl) || | |
3741 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
3742 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
3743 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
3744 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
3745 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
3746 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
3747 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
3748 | cur_params.path_refresh_time) || | |
3749 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3750 | cur_params.min_discovery_timeout) || | |
3751 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3752 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
3753 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3754 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
3755 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3756 | cur_params.dot11MeshHWMPperrMinInterval) || | |
3757 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3758 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
3759 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
3760 | cur_params.dot11MeshHWMPRootMode) || | |
3761 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3762 | cur_params.dot11MeshHWMPRannInterval) || | |
3763 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3764 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
3765 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
3766 | cur_params.dot11MeshForwarding) || | |
3767 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
3768 | cur_params.rssi_threshold) || |
3769 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
ac1073a6 CYY |
3770 | cur_params.ht_opmode) || |
3771 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
3772 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
3773 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
3774 | cur_params.dot11MeshHWMProotInterval) || |
3775 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3776 | cur_params.dot11MeshHWMPconfirmationInterval)) | |
9360ffd1 | 3777 | goto nla_put_failure; |
93da9cc1 | 3778 | nla_nest_end(msg, pinfoattr); |
3779 | genlmsg_end(msg, hdr); | |
4c476991 | 3780 | return genlmsg_reply(msg, info); |
93da9cc1 | 3781 | |
3b85875a | 3782 | nla_put_failure: |
93da9cc1 | 3783 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 3784 | out: |
d080e275 | 3785 | nlmsg_free(msg); |
4c476991 | 3786 | return -ENOBUFS; |
93da9cc1 | 3787 | } |
3788 | ||
b54452b0 | 3789 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 3790 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
3791 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
3792 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
3793 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
3794 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
3795 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 3796 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 3797 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 3798 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 3799 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
3800 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
3801 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
3802 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
3803 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 3804 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 3805 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 3806 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 3807 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 3808 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 3809 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
a4f606ea CYY |
3810 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
3811 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
ac1073a6 CYY |
3812 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
3813 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
728b19e5 | 3814 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 3815 | }; |
3816 | ||
c80d545d JC |
3817 | static const struct nla_policy |
3818 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 3819 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
3820 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
3821 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 3822 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
581a8b0f | 3823 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
a4f606ea | 3824 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 3825 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
3826 | }; |
3827 | ||
24bdd9f4 | 3828 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
3829 | struct mesh_config *cfg, |
3830 | u32 *mask_out) | |
93da9cc1 | 3831 | { |
93da9cc1 | 3832 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 3833 | u32 mask = 0; |
93da9cc1 | 3834 | |
bd90fdcc JB |
3835 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ |
3836 | do {\ | |
3837 | if (table[attr_num]) {\ | |
3838 | cfg->param = nla_fn(table[attr_num]); \ | |
3839 | mask |= (1 << (attr_num - 1)); \ | |
3840 | } \ | |
3841 | } while (0);\ | |
3842 | ||
3843 | ||
24bdd9f4 | 3844 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 3845 | return -EINVAL; |
3846 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 3847 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 3848 | nl80211_meshconf_params_policy)) |
93da9cc1 | 3849 | return -EINVAL; |
3850 | ||
93da9cc1 | 3851 | /* This makes sure that there aren't more than 32 mesh config |
3852 | * parameters (otherwise our bitfield scheme would not work.) */ | |
3853 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
3854 | ||
3855 | /* Fill in the params struct */ | |
93da9cc1 | 3856 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, |
a4f606ea CYY |
3857 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
3858 | nla_get_u16); | |
93da9cc1 | 3859 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, |
a4f606ea CYY |
3860 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
3861 | nla_get_u16); | |
93da9cc1 | 3862 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, |
a4f606ea CYY |
3863 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
3864 | nla_get_u16); | |
93da9cc1 | 3865 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, |
a4f606ea CYY |
3866 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
3867 | nla_get_u16); | |
93da9cc1 | 3868 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, |
a4f606ea CYY |
3869 | mask, NL80211_MESHCONF_MAX_RETRIES, |
3870 | nla_get_u8); | |
93da9cc1 | 3871 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, |
a4f606ea | 3872 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
45904f21 | 3873 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, |
a4f606ea CYY |
3874 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
3875 | nla_get_u8); | |
93da9cc1 | 3876 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, |
a4f606ea CYY |
3877 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
3878 | nla_get_u8); | |
3879 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask, | |
3880 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, | |
3881 | nla_get_u32); | |
93da9cc1 | 3882 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, |
a4f606ea CYY |
3883 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
3884 | nla_get_u8); | |
93da9cc1 | 3885 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, |
a4f606ea CYY |
3886 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
3887 | nla_get_u32); | |
93da9cc1 | 3888 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, |
a4f606ea CYY |
3889 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
3890 | nla_get_u16); | |
3891 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask, | |
3892 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3893 | nla_get_u32); | |
93da9cc1 | 3894 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
a4f606ea CYY |
3895 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, |
3896 | nla_get_u16); | |
dca7e943 | 3897 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
a4f606ea CYY |
3898 | mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
3899 | nla_get_u16); | |
93da9cc1 | 3900 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
a4f606ea CYY |
3901 | dot11MeshHWMPnetDiameterTraversalTime, mask, |
3902 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3903 | nla_get_u16); | |
3904 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask, | |
3905 | NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8); | |
3906 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask, | |
3907 | NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3908 | nla_get_u16); | |
63c5723b | 3909 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
a4f606ea CYY |
3910 | dot11MeshGateAnnouncementProtocol, mask, |
3911 | NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3912 | nla_get_u8); | |
94f90656 | 3913 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, |
a4f606ea CYY |
3914 | mask, NL80211_MESHCONF_FORWARDING, |
3915 | nla_get_u8); | |
55335137 | 3916 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, |
a4f606ea CYY |
3917 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
3918 | nla_get_u32); | |
70c33eaa | 3919 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, |
a4f606ea | 3920 | mask, NL80211_MESHCONF_HT_OPMODE, |
ac1073a6 CYY |
3921 | nla_get_u16); |
3922 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
3923 | mask, | |
3924 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
3925 | nla_get_u32); | |
3926 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, | |
3927 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
3928 | nla_get_u16); |
3929 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
3930 | dot11MeshHWMPconfirmationInterval, mask, | |
3931 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
a4f606ea | 3932 | nla_get_u16); |
bd90fdcc JB |
3933 | if (mask_out) |
3934 | *mask_out = mask; | |
c80d545d | 3935 | |
bd90fdcc JB |
3936 | return 0; |
3937 | ||
3938 | #undef FILL_IN_MESH_PARAM_IF_SET | |
3939 | } | |
3940 | ||
c80d545d JC |
3941 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
3942 | struct mesh_setup *setup) | |
3943 | { | |
3944 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
3945 | ||
3946 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
3947 | return -EINVAL; | |
3948 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
3949 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
3950 | nl80211_mesh_setup_params_policy)) | |
3951 | return -EINVAL; | |
3952 | ||
d299a1f2 JC |
3953 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
3954 | setup->sync_method = | |
3955 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
3956 | IEEE80211_SYNC_METHOD_VENDOR : | |
3957 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
3958 | ||
c80d545d JC |
3959 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
3960 | setup->path_sel_proto = | |
3961 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
3962 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
3963 | IEEE80211_PATH_PROTOCOL_HWMP; | |
3964 | ||
3965 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
3966 | setup->path_metric = | |
3967 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
3968 | IEEE80211_PATH_METRIC_VENDOR : | |
3969 | IEEE80211_PATH_METRIC_AIRTIME; | |
3970 | ||
581a8b0f JC |
3971 | |
3972 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 3973 | struct nlattr *ieattr = |
581a8b0f | 3974 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
3975 | if (!is_valid_ie_attr(ieattr)) |
3976 | return -EINVAL; | |
581a8b0f JC |
3977 | setup->ie = nla_data(ieattr); |
3978 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 3979 | } |
b130e5ce JC |
3980 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
3981 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
c80d545d JC |
3982 | |
3983 | return 0; | |
3984 | } | |
3985 | ||
24bdd9f4 | 3986 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 3987 | struct genl_info *info) |
bd90fdcc JB |
3988 | { |
3989 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3990 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 3991 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
3992 | struct mesh_config cfg; |
3993 | u32 mask; | |
3994 | int err; | |
3995 | ||
29cbe68c JB |
3996 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3997 | return -EOPNOTSUPP; | |
3998 | ||
24bdd9f4 | 3999 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
4000 | return -EOPNOTSUPP; |
4001 | ||
24bdd9f4 | 4002 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
4003 | if (err) |
4004 | return err; | |
4005 | ||
29cbe68c JB |
4006 | wdev_lock(wdev); |
4007 | if (!wdev->mesh_id_len) | |
4008 | err = -ENOLINK; | |
4009 | ||
4010 | if (!err) | |
24bdd9f4 | 4011 | err = rdev->ops->update_mesh_config(&rdev->wiphy, dev, |
29cbe68c JB |
4012 | mask, &cfg); |
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; |
fd014284 | 4397 | err = rdev->ops->scan(&rdev->wiphy, 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 LC |
4637 | |
4638 | err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request); | |
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 | ||
61fa713c HS |
4881 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, |
4882 | &survey); | |
4883 | if (res == -ENOENT) | |
4884 | break; | |
4885 | if (res) | |
4886 | goto out_err; | |
4887 | ||
180cdc79 LR |
4888 | /* Survey without a channel doesn't make sense */ |
4889 | if (!survey.channel) { | |
4890 | res = -EINVAL; | |
4891 | goto out; | |
4892 | } | |
4893 | ||
4894 | chan = ieee80211_get_channel(&dev->wiphy, | |
4895 | survey.channel->center_freq); | |
4896 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
4897 | survey_idx++; | |
4898 | continue; | |
4899 | } | |
4900 | ||
61fa713c | 4901 | if (nl80211_send_survey(skb, |
15e47304 | 4902 | NETLINK_CB(cb->skb).portid, |
61fa713c HS |
4903 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
4904 | netdev, | |
4905 | &survey) < 0) | |
4906 | goto out; | |
4907 | survey_idx++; | |
4908 | } | |
4909 | ||
4910 | out: | |
4911 | cb->args[1] = survey_idx; | |
4912 | res = skb->len; | |
4913 | out_err: | |
67748893 | 4914 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
4915 | return res; |
4916 | } | |
4917 | ||
b23aa676 SO |
4918 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
4919 | { | |
4920 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
4921 | NL80211_WPA_VERSION_2)); | |
4922 | } | |
4923 | ||
636a5d36 JM |
4924 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
4925 | { | |
4c476991 JB |
4926 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4927 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4928 | struct ieee80211_channel *chan; |
e39e5b5e JM |
4929 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
4930 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
19957bb3 | 4931 | enum nl80211_auth_type auth_type; |
fffd0934 | 4932 | struct key_parse key; |
d5cdfacb | 4933 | bool local_state_change; |
636a5d36 | 4934 | |
f4a11bb0 JB |
4935 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4936 | return -EINVAL; | |
4937 | ||
4938 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4939 | return -EINVAL; | |
4940 | ||
1778092e JM |
4941 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
4942 | return -EINVAL; | |
4943 | ||
19957bb3 JB |
4944 | if (!info->attrs[NL80211_ATTR_SSID]) |
4945 | return -EINVAL; | |
4946 | ||
4947 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4948 | return -EINVAL; | |
4949 | ||
fffd0934 JB |
4950 | err = nl80211_parse_key(info, &key); |
4951 | if (err) | |
4952 | return err; | |
4953 | ||
4954 | if (key.idx >= 0) { | |
e31b8213 JB |
4955 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
4956 | return -EINVAL; | |
fffd0934 JB |
4957 | if (!key.p.key || !key.p.key_len) |
4958 | return -EINVAL; | |
4959 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
4960 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
4961 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
4962 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
4963 | return -EINVAL; | |
4964 | if (key.idx > 4) | |
4965 | return -EINVAL; | |
4966 | } else { | |
4967 | key.p.key_len = 0; | |
4968 | key.p.key = NULL; | |
4969 | } | |
4970 | ||
afea0b7a JB |
4971 | if (key.idx >= 0) { |
4972 | int i; | |
4973 | bool ok = false; | |
4974 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
4975 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
4976 | ok = true; | |
4977 | break; | |
4978 | } | |
4979 | } | |
4c476991 JB |
4980 | if (!ok) |
4981 | return -EINVAL; | |
afea0b7a JB |
4982 | } |
4983 | ||
4c476991 JB |
4984 | if (!rdev->ops->auth) |
4985 | return -EOPNOTSUPP; | |
636a5d36 | 4986 | |
074ac8df | 4987 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4988 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4989 | return -EOPNOTSUPP; | |
eec60b03 | 4990 | |
19957bb3 | 4991 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 4992 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 4993 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
4994 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
4995 | return -EINVAL; | |
636a5d36 | 4996 | |
19957bb3 JB |
4997 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4998 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
4999 | |
5000 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5001 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5002 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5003 | } |
5004 | ||
19957bb3 | 5005 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
e39e5b5e | 5006 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
4c476991 | 5007 | return -EINVAL; |
636a5d36 | 5008 | |
e39e5b5e JM |
5009 | if (auth_type == NL80211_AUTHTYPE_SAE && |
5010 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
5011 | return -EINVAL; | |
5012 | ||
5013 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
5014 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
5015 | return -EINVAL; | |
5016 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5017 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
5018 | /* need to include at least Auth Transaction and Status Code */ | |
5019 | if (sae_data_len < 4) | |
5020 | return -EINVAL; | |
5021 | } | |
5022 | ||
d5cdfacb JM |
5023 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5024 | ||
95de817b JB |
5025 | /* |
5026 | * Since we no longer track auth state, ignore | |
5027 | * requests to only change local state. | |
5028 | */ | |
5029 | if (local_state_change) | |
5030 | return 0; | |
5031 | ||
4c476991 JB |
5032 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
5033 | ssid, ssid_len, ie, ie_len, | |
e39e5b5e JM |
5034 | key.p.key, key.p.key_len, key.idx, |
5035 | sae_data, sae_data_len); | |
636a5d36 JM |
5036 | } |
5037 | ||
c0692b8f JB |
5038 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
5039 | struct genl_info *info, | |
3dc27d25 JB |
5040 | struct cfg80211_crypto_settings *settings, |
5041 | int cipher_limit) | |
b23aa676 | 5042 | { |
c0b2bbd8 JB |
5043 | memset(settings, 0, sizeof(*settings)); |
5044 | ||
b23aa676 SO |
5045 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
5046 | ||
c0692b8f JB |
5047 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
5048 | u16 proto; | |
5049 | proto = nla_get_u16( | |
5050 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
5051 | settings->control_port_ethertype = cpu_to_be16(proto); | |
5052 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
5053 | proto != ETH_P_PAE) | |
5054 | return -EINVAL; | |
5055 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
5056 | settings->control_port_no_encrypt = true; | |
5057 | } else | |
5058 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
5059 | ||
b23aa676 SO |
5060 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
5061 | void *data; | |
5062 | int len, i; | |
5063 | ||
5064 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5065 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
5066 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
5067 | ||
5068 | if (len % sizeof(u32)) | |
5069 | return -EINVAL; | |
5070 | ||
3dc27d25 | 5071 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
5072 | return -EINVAL; |
5073 | ||
5074 | memcpy(settings->ciphers_pairwise, data, len); | |
5075 | ||
5076 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
5077 | if (!cfg80211_supported_cipher_suite( |
5078 | &rdev->wiphy, | |
b23aa676 SO |
5079 | settings->ciphers_pairwise[i])) |
5080 | return -EINVAL; | |
5081 | } | |
5082 | ||
5083 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
5084 | settings->cipher_group = | |
5085 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
5086 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
5087 | settings->cipher_group)) | |
b23aa676 SO |
5088 | return -EINVAL; |
5089 | } | |
5090 | ||
5091 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
5092 | settings->wpa_versions = | |
5093 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
5094 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
5095 | return -EINVAL; | |
5096 | } | |
5097 | ||
5098 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
5099 | void *data; | |
6d30240e | 5100 | int len; |
b23aa676 SO |
5101 | |
5102 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5103 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
5104 | settings->n_akm_suites = len / sizeof(u32); | |
5105 | ||
5106 | if (len % sizeof(u32)) | |
5107 | return -EINVAL; | |
5108 | ||
1b9ca027 JM |
5109 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
5110 | return -EINVAL; | |
5111 | ||
b23aa676 | 5112 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
5113 | } |
5114 | ||
5115 | return 0; | |
5116 | } | |
5117 | ||
636a5d36 JM |
5118 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
5119 | { | |
4c476991 JB |
5120 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5121 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5122 | struct cfg80211_crypto_settings crypto; |
f444de05 | 5123 | struct ieee80211_channel *chan; |
3e5d7649 | 5124 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
5125 | int err, ssid_len, ie_len = 0; |
5126 | bool use_mfp = false; | |
7e7c8926 BG |
5127 | u32 flags = 0; |
5128 | struct ieee80211_ht_cap *ht_capa = NULL; | |
5129 | struct ieee80211_ht_cap *ht_capa_mask = NULL; | |
636a5d36 | 5130 | |
f4a11bb0 JB |
5131 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5132 | return -EINVAL; | |
5133 | ||
5134 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
5135 | !info->attrs[NL80211_ATTR_SSID] || |
5136 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
5137 | return -EINVAL; |
5138 | ||
4c476991 JB |
5139 | if (!rdev->ops->assoc) |
5140 | return -EOPNOTSUPP; | |
636a5d36 | 5141 | |
074ac8df | 5142 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5143 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5144 | return -EOPNOTSUPP; | |
eec60b03 | 5145 | |
19957bb3 | 5146 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5147 | |
19957bb3 JB |
5148 | chan = ieee80211_get_channel(&rdev->wiphy, |
5149 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
5150 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
5151 | return -EINVAL; | |
636a5d36 | 5152 | |
19957bb3 JB |
5153 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5154 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
5155 | |
5156 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5157 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5158 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5159 | } |
5160 | ||
dc6382ce | 5161 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 5162 | enum nl80211_mfp mfp = |
dc6382ce | 5163 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 5164 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 5165 | use_mfp = true; |
4c476991 JB |
5166 | else if (mfp != NL80211_MFP_NO) |
5167 | return -EINVAL; | |
dc6382ce JM |
5168 | } |
5169 | ||
3e5d7649 JB |
5170 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
5171 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
5172 | ||
7e7c8926 BG |
5173 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5174 | flags |= ASSOC_REQ_DISABLE_HT; | |
5175 | ||
5176 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5177 | ht_capa_mask = | |
5178 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
5179 | ||
5180 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5181 | if (!ht_capa_mask) | |
5182 | return -EINVAL; | |
5183 | ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5184 | } | |
5185 | ||
c0692b8f | 5186 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 5187 | if (!err) |
3e5d7649 JB |
5188 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
5189 | ssid, ssid_len, ie, ie_len, use_mfp, | |
7e7c8926 BG |
5190 | &crypto, flags, ht_capa, |
5191 | ht_capa_mask); | |
636a5d36 | 5192 | |
636a5d36 JM |
5193 | return err; |
5194 | } | |
5195 | ||
5196 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
5197 | { | |
4c476991 JB |
5198 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5199 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5200 | const u8 *ie = NULL, *bssid; |
4c476991 | 5201 | int ie_len = 0; |
19957bb3 | 5202 | u16 reason_code; |
d5cdfacb | 5203 | bool local_state_change; |
636a5d36 | 5204 | |
f4a11bb0 JB |
5205 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5206 | return -EINVAL; | |
5207 | ||
5208 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5209 | return -EINVAL; | |
5210 | ||
5211 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5212 | return -EINVAL; | |
5213 | ||
4c476991 JB |
5214 | if (!rdev->ops->deauth) |
5215 | return -EOPNOTSUPP; | |
636a5d36 | 5216 | |
074ac8df | 5217 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5218 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5219 | return -EOPNOTSUPP; | |
eec60b03 | 5220 | |
19957bb3 | 5221 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5222 | |
19957bb3 JB |
5223 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
5224 | if (reason_code == 0) { | |
f4a11bb0 | 5225 | /* Reason Code 0 is reserved */ |
4c476991 | 5226 | return -EINVAL; |
255e737e | 5227 | } |
636a5d36 JM |
5228 | |
5229 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5230 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5231 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5232 | } |
5233 | ||
d5cdfacb JM |
5234 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5235 | ||
4c476991 JB |
5236 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
5237 | local_state_change); | |
636a5d36 JM |
5238 | } |
5239 | ||
5240 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
5241 | { | |
4c476991 JB |
5242 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5243 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 5244 | const u8 *ie = NULL, *bssid; |
4c476991 | 5245 | int ie_len = 0; |
19957bb3 | 5246 | u16 reason_code; |
d5cdfacb | 5247 | bool local_state_change; |
636a5d36 | 5248 | |
f4a11bb0 JB |
5249 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5250 | return -EINVAL; | |
5251 | ||
5252 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5253 | return -EINVAL; | |
5254 | ||
5255 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5256 | return -EINVAL; | |
5257 | ||
4c476991 JB |
5258 | if (!rdev->ops->disassoc) |
5259 | return -EOPNOTSUPP; | |
636a5d36 | 5260 | |
074ac8df | 5261 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5262 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5263 | return -EOPNOTSUPP; | |
eec60b03 | 5264 | |
19957bb3 | 5265 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 5266 | |
19957bb3 JB |
5267 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
5268 | if (reason_code == 0) { | |
f4a11bb0 | 5269 | /* Reason Code 0 is reserved */ |
4c476991 | 5270 | return -EINVAL; |
255e737e | 5271 | } |
636a5d36 JM |
5272 | |
5273 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
5274 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
5275 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
5276 | } |
5277 | ||
d5cdfacb JM |
5278 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
5279 | ||
4c476991 JB |
5280 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
5281 | local_state_change); | |
636a5d36 JM |
5282 | } |
5283 | ||
dd5b4cc7 FF |
5284 | static bool |
5285 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
5286 | int mcast_rate[IEEE80211_NUM_BANDS], | |
5287 | int rateval) | |
5288 | { | |
5289 | struct wiphy *wiphy = &rdev->wiphy; | |
5290 | bool found = false; | |
5291 | int band, i; | |
5292 | ||
5293 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
5294 | struct ieee80211_supported_band *sband; | |
5295 | ||
5296 | sband = wiphy->bands[band]; | |
5297 | if (!sband) | |
5298 | continue; | |
5299 | ||
5300 | for (i = 0; i < sband->n_bitrates; i++) { | |
5301 | if (sband->bitrates[i].bitrate == rateval) { | |
5302 | mcast_rate[band] = i + 1; | |
5303 | found = true; | |
5304 | break; | |
5305 | } | |
5306 | } | |
5307 | } | |
5308 | ||
5309 | return found; | |
5310 | } | |
5311 | ||
04a773ad JB |
5312 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
5313 | { | |
4c476991 JB |
5314 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5315 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
5316 | struct cfg80211_ibss_params ibss; |
5317 | struct wiphy *wiphy; | |
fffd0934 | 5318 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
5319 | int err; |
5320 | ||
8e30bc55 JB |
5321 | memset(&ibss, 0, sizeof(ibss)); |
5322 | ||
04a773ad JB |
5323 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5324 | return -EINVAL; | |
5325 | ||
5326 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5327 | !info->attrs[NL80211_ATTR_SSID] || | |
5328 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5329 | return -EINVAL; | |
5330 | ||
8e30bc55 JB |
5331 | ibss.beacon_interval = 100; |
5332 | ||
5333 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
5334 | ibss.beacon_interval = | |
5335 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
5336 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
5337 | return -EINVAL; | |
5338 | } | |
5339 | ||
4c476991 JB |
5340 | if (!rdev->ops->join_ibss) |
5341 | return -EOPNOTSUPP; | |
04a773ad | 5342 | |
4c476991 JB |
5343 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5344 | return -EOPNOTSUPP; | |
04a773ad | 5345 | |
79c97e97 | 5346 | wiphy = &rdev->wiphy; |
04a773ad | 5347 | |
39193498 | 5348 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 5349 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
5350 | |
5351 | if (!is_valid_ether_addr(ibss.bssid)) | |
5352 | return -EINVAL; | |
5353 | } | |
04a773ad JB |
5354 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
5355 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5356 | ||
5357 | if (info->attrs[NL80211_ATTR_IE]) { | |
5358 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5359 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5360 | } | |
5361 | ||
54858ee5 AS |
5362 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
5363 | enum nl80211_channel_type channel_type; | |
5364 | ||
cd6c6598 | 5365 | if (!nl80211_valid_channel_type(info, &channel_type)) |
54858ee5 AS |
5366 | return -EINVAL; |
5367 | ||
5368 | if (channel_type != NL80211_CHAN_NO_HT && | |
5369 | !(wiphy->features & NL80211_FEATURE_HT_IBSS)) | |
5370 | return -EINVAL; | |
5371 | ||
5372 | ibss.channel_type = channel_type; | |
5373 | } else { | |
5374 | ibss.channel_type = NL80211_CHAN_NO_HT; | |
5375 | } | |
5376 | ||
5377 | ibss.channel = rdev_freq_to_chan(rdev, | |
5378 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
5379 | ibss.channel_type); | |
04a773ad JB |
5380 | if (!ibss.channel || |
5381 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
5382 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
5383 | return -EINVAL; | |
04a773ad | 5384 | |
54858ee5 AS |
5385 | /* Both channels should be able to initiate communication */ |
5386 | if ((ibss.channel_type == NL80211_CHAN_HT40PLUS || | |
5387 | ibss.channel_type == NL80211_CHAN_HT40MINUS) && | |
5388 | !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel, | |
5389 | ibss.channel_type)) | |
5390 | return -EINVAL; | |
5391 | ||
04a773ad | 5392 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
5393 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
5394 | ||
fbd2c8dc TP |
5395 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
5396 | u8 *rates = | |
5397 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5398 | int n_rates = | |
5399 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
5400 | struct ieee80211_supported_band *sband = | |
5401 | wiphy->bands[ibss.channel->band]; | |
fbd2c8dc | 5402 | |
34850ab2 JB |
5403 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
5404 | &ibss.basic_rates); | |
5405 | if (err) | |
5406 | return err; | |
fbd2c8dc | 5407 | } |
dd5b4cc7 FF |
5408 | |
5409 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
5410 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
5411 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
5412 | return -EINVAL; | |
fbd2c8dc | 5413 | |
4c476991 | 5414 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
de7044ee SM |
5415 | bool no_ht = false; |
5416 | ||
4c476991 | 5417 | connkeys = nl80211_parse_connkeys(rdev, |
de7044ee SM |
5418 | info->attrs[NL80211_ATTR_KEYS], |
5419 | &no_ht); | |
4c476991 JB |
5420 | if (IS_ERR(connkeys)) |
5421 | return PTR_ERR(connkeys); | |
de7044ee SM |
5422 | |
5423 | if ((ibss.channel_type != NL80211_CHAN_NO_HT) && no_ht) { | |
5424 | kfree(connkeys); | |
5425 | return -EINVAL; | |
5426 | } | |
4c476991 | 5427 | } |
04a773ad | 5428 | |
267335d6 AQ |
5429 | ibss.control_port = |
5430 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
5431 | ||
4c476991 | 5432 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
5433 | if (err) |
5434 | kfree(connkeys); | |
04a773ad JB |
5435 | return err; |
5436 | } | |
5437 | ||
5438 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
5439 | { | |
4c476991 JB |
5440 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5441 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 5442 | |
4c476991 JB |
5443 | if (!rdev->ops->leave_ibss) |
5444 | return -EOPNOTSUPP; | |
04a773ad | 5445 | |
4c476991 JB |
5446 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
5447 | return -EOPNOTSUPP; | |
04a773ad | 5448 | |
4c476991 | 5449 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
5450 | } |
5451 | ||
aff89a9b JB |
5452 | #ifdef CONFIG_NL80211_TESTMODE |
5453 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
5454 | .name = "testmode", | |
5455 | }; | |
5456 | ||
5457 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
5458 | { | |
4c476991 | 5459 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
5460 | int err; |
5461 | ||
5462 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
5463 | return -EINVAL; | |
5464 | ||
aff89a9b JB |
5465 | err = -EOPNOTSUPP; |
5466 | if (rdev->ops->testmode_cmd) { | |
5467 | rdev->testmode_info = info; | |
5468 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
5469 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
5470 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
5471 | rdev->testmode_info = NULL; | |
5472 | } | |
5473 | ||
aff89a9b JB |
5474 | return err; |
5475 | } | |
5476 | ||
71063f0e WYG |
5477 | static int nl80211_testmode_dump(struct sk_buff *skb, |
5478 | struct netlink_callback *cb) | |
5479 | { | |
00918d33 | 5480 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
5481 | int err; |
5482 | long phy_idx; | |
5483 | void *data = NULL; | |
5484 | int data_len = 0; | |
5485 | ||
5486 | if (cb->args[0]) { | |
5487 | /* | |
5488 | * 0 is a valid index, but not valid for args[0], | |
5489 | * so we need to offset by 1. | |
5490 | */ | |
5491 | phy_idx = cb->args[0] - 1; | |
5492 | } else { | |
5493 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
5494 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
5495 | nl80211_policy); | |
5496 | if (err) | |
5497 | return err; | |
00918d33 | 5498 | |
2bd7e35d JB |
5499 | mutex_lock(&cfg80211_mutex); |
5500 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
5501 | nl80211_fam.attrbuf); | |
5502 | if (IS_ERR(rdev)) { | |
5503 | mutex_unlock(&cfg80211_mutex); | |
5504 | return PTR_ERR(rdev); | |
00918d33 | 5505 | } |
2bd7e35d JB |
5506 | phy_idx = rdev->wiphy_idx; |
5507 | rdev = NULL; | |
5508 | mutex_unlock(&cfg80211_mutex); | |
5509 | ||
71063f0e WYG |
5510 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
5511 | cb->args[1] = | |
5512 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
5513 | } | |
5514 | ||
5515 | if (cb->args[1]) { | |
5516 | data = nla_data((void *)cb->args[1]); | |
5517 | data_len = nla_len((void *)cb->args[1]); | |
5518 | } | |
5519 | ||
5520 | mutex_lock(&cfg80211_mutex); | |
00918d33 JB |
5521 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
5522 | if (!rdev) { | |
71063f0e WYG |
5523 | mutex_unlock(&cfg80211_mutex); |
5524 | return -ENOENT; | |
5525 | } | |
00918d33 | 5526 | cfg80211_lock_rdev(rdev); |
71063f0e WYG |
5527 | mutex_unlock(&cfg80211_mutex); |
5528 | ||
00918d33 | 5529 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
5530 | err = -EOPNOTSUPP; |
5531 | goto out_err; | |
5532 | } | |
5533 | ||
5534 | while (1) { | |
15e47304 | 5535 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
71063f0e WYG |
5536 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
5537 | NL80211_CMD_TESTMODE); | |
5538 | struct nlattr *tmdata; | |
5539 | ||
9360ffd1 | 5540 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
5541 | genlmsg_cancel(skb, hdr); |
5542 | break; | |
5543 | } | |
5544 | ||
5545 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5546 | if (!tmdata) { | |
5547 | genlmsg_cancel(skb, hdr); | |
5548 | break; | |
5549 | } | |
00918d33 JB |
5550 | err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb, |
5551 | data, data_len); | |
71063f0e WYG |
5552 | nla_nest_end(skb, tmdata); |
5553 | ||
5554 | if (err == -ENOBUFS || err == -ENOENT) { | |
5555 | genlmsg_cancel(skb, hdr); | |
5556 | break; | |
5557 | } else if (err) { | |
5558 | genlmsg_cancel(skb, hdr); | |
5559 | goto out_err; | |
5560 | } | |
5561 | ||
5562 | genlmsg_end(skb, hdr); | |
5563 | } | |
5564 | ||
5565 | err = skb->len; | |
5566 | /* see above */ | |
5567 | cb->args[0] = phy_idx + 1; | |
5568 | out_err: | |
00918d33 | 5569 | cfg80211_unlock_rdev(rdev); |
71063f0e WYG |
5570 | return err; |
5571 | } | |
5572 | ||
aff89a9b JB |
5573 | static struct sk_buff * |
5574 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
15e47304 | 5575 | int approxlen, u32 portid, u32 seq, gfp_t gfp) |
aff89a9b JB |
5576 | { |
5577 | struct sk_buff *skb; | |
5578 | void *hdr; | |
5579 | struct nlattr *data; | |
5580 | ||
5581 | skb = nlmsg_new(approxlen + 100, gfp); | |
5582 | if (!skb) | |
5583 | return NULL; | |
5584 | ||
15e47304 | 5585 | hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE); |
aff89a9b JB |
5586 | if (!hdr) { |
5587 | kfree_skb(skb); | |
5588 | return NULL; | |
5589 | } | |
5590 | ||
9360ffd1 DM |
5591 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) |
5592 | goto nla_put_failure; | |
aff89a9b JB |
5593 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); |
5594 | ||
5595 | ((void **)skb->cb)[0] = rdev; | |
5596 | ((void **)skb->cb)[1] = hdr; | |
5597 | ((void **)skb->cb)[2] = data; | |
5598 | ||
5599 | return skb; | |
5600 | ||
5601 | nla_put_failure: | |
5602 | kfree_skb(skb); | |
5603 | return NULL; | |
5604 | } | |
5605 | ||
5606 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
5607 | int approxlen) | |
5608 | { | |
5609 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5610 | ||
5611 | if (WARN_ON(!rdev->testmode_info)) | |
5612 | return NULL; | |
5613 | ||
5614 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
15e47304 | 5615 | rdev->testmode_info->snd_portid, |
aff89a9b JB |
5616 | rdev->testmode_info->snd_seq, |
5617 | GFP_KERNEL); | |
5618 | } | |
5619 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
5620 | ||
5621 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
5622 | { | |
5623 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
5624 | void *hdr = ((void **)skb->cb)[1]; | |
5625 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5626 | ||
5627 | if (WARN_ON(!rdev->testmode_info)) { | |
5628 | kfree_skb(skb); | |
5629 | return -EINVAL; | |
5630 | } | |
5631 | ||
5632 | nla_nest_end(skb, data); | |
5633 | genlmsg_end(skb, hdr); | |
5634 | return genlmsg_reply(skb, rdev->testmode_info); | |
5635 | } | |
5636 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
5637 | ||
5638 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
5639 | int approxlen, gfp_t gfp) | |
5640 | { | |
5641 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5642 | ||
5643 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
5644 | } | |
5645 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
5646 | ||
5647 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
5648 | { | |
5649 | void *hdr = ((void **)skb->cb)[1]; | |
5650 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5651 | ||
5652 | nla_nest_end(skb, data); | |
5653 | genlmsg_end(skb, hdr); | |
5654 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
5655 | } | |
5656 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
5657 | #endif | |
5658 | ||
b23aa676 SO |
5659 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
5660 | { | |
4c476991 JB |
5661 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5662 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5663 | struct cfg80211_connect_params connect; |
5664 | struct wiphy *wiphy; | |
fffd0934 | 5665 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
5666 | int err; |
5667 | ||
5668 | memset(&connect, 0, sizeof(connect)); | |
5669 | ||
5670 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5671 | return -EINVAL; | |
5672 | ||
5673 | if (!info->attrs[NL80211_ATTR_SSID] || | |
5674 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5675 | return -EINVAL; | |
5676 | ||
5677 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
5678 | connect.auth_type = | |
5679 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
5680 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
5681 | NL80211_CMD_CONNECT)) | |
b23aa676 SO |
5682 | return -EINVAL; |
5683 | } else | |
5684 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
5685 | ||
5686 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
5687 | ||
c0692b8f | 5688 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 5689 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
5690 | if (err) |
5691 | return err; | |
b23aa676 | 5692 | |
074ac8df | 5693 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5694 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5695 | return -EOPNOTSUPP; | |
b23aa676 | 5696 | |
79c97e97 | 5697 | wiphy = &rdev->wiphy; |
b23aa676 | 5698 | |
4486ea98 BS |
5699 | connect.bg_scan_period = -1; |
5700 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
5701 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
5702 | connect.bg_scan_period = | |
5703 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
5704 | } | |
5705 | ||
b23aa676 SO |
5706 | if (info->attrs[NL80211_ATTR_MAC]) |
5707 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5708 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5709 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5710 | ||
5711 | if (info->attrs[NL80211_ATTR_IE]) { | |
5712 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5713 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5714 | } | |
5715 | ||
5716 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
5717 | connect.channel = | |
5718 | ieee80211_get_channel(wiphy, | |
5719 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
5720 | if (!connect.channel || | |
4c476991 JB |
5721 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
5722 | return -EINVAL; | |
b23aa676 SO |
5723 | } |
5724 | ||
fffd0934 JB |
5725 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
5726 | connkeys = nl80211_parse_connkeys(rdev, | |
de7044ee | 5727 | info->attrs[NL80211_ATTR_KEYS], NULL); |
4c476991 JB |
5728 | if (IS_ERR(connkeys)) |
5729 | return PTR_ERR(connkeys); | |
fffd0934 JB |
5730 | } |
5731 | ||
7e7c8926 BG |
5732 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5733 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
5734 | ||
5735 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5736 | memcpy(&connect.ht_capa_mask, | |
5737 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
5738 | sizeof(connect.ht_capa_mask)); | |
5739 | ||
5740 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
b4e4f47e WY |
5741 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
5742 | kfree(connkeys); | |
7e7c8926 | 5743 | return -EINVAL; |
b4e4f47e | 5744 | } |
7e7c8926 BG |
5745 | memcpy(&connect.ht_capa, |
5746 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
5747 | sizeof(connect.ht_capa)); | |
5748 | } | |
5749 | ||
fffd0934 | 5750 | err = cfg80211_connect(rdev, dev, &connect, connkeys); |
fffd0934 JB |
5751 | if (err) |
5752 | kfree(connkeys); | |
b23aa676 SO |
5753 | return err; |
5754 | } | |
5755 | ||
5756 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
5757 | { | |
4c476991 JB |
5758 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5759 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5760 | u16 reason; |
5761 | ||
5762 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5763 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
5764 | else | |
5765 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5766 | ||
5767 | if (reason == 0) | |
5768 | return -EINVAL; | |
5769 | ||
074ac8df | 5770 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5771 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5772 | return -EOPNOTSUPP; | |
b23aa676 | 5773 | |
4c476991 | 5774 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
5775 | } |
5776 | ||
463d0183 JB |
5777 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
5778 | { | |
4c476991 | 5779 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
5780 | struct net *net; |
5781 | int err; | |
5782 | u32 pid; | |
5783 | ||
5784 | if (!info->attrs[NL80211_ATTR_PID]) | |
5785 | return -EINVAL; | |
5786 | ||
5787 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
5788 | ||
463d0183 | 5789 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
5790 | if (IS_ERR(net)) |
5791 | return PTR_ERR(net); | |
463d0183 JB |
5792 | |
5793 | err = 0; | |
5794 | ||
5795 | /* check if anything to do */ | |
4c476991 JB |
5796 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
5797 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 5798 | |
463d0183 | 5799 | put_net(net); |
463d0183 JB |
5800 | return err; |
5801 | } | |
5802 | ||
67fbb16b SO |
5803 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
5804 | { | |
4c476991 | 5805 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
5806 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
5807 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 5808 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
5809 | struct cfg80211_pmksa pmksa; |
5810 | ||
5811 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
5812 | ||
5813 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5814 | return -EINVAL; | |
5815 | ||
5816 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
5817 | return -EINVAL; | |
5818 | ||
67fbb16b SO |
5819 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
5820 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5821 | ||
074ac8df | 5822 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5823 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5824 | return -EOPNOTSUPP; | |
67fbb16b SO |
5825 | |
5826 | switch (info->genlhdr->cmd) { | |
5827 | case NL80211_CMD_SET_PMKSA: | |
5828 | rdev_ops = rdev->ops->set_pmksa; | |
5829 | break; | |
5830 | case NL80211_CMD_DEL_PMKSA: | |
5831 | rdev_ops = rdev->ops->del_pmksa; | |
5832 | break; | |
5833 | default: | |
5834 | WARN_ON(1); | |
5835 | break; | |
5836 | } | |
5837 | ||
4c476991 JB |
5838 | if (!rdev_ops) |
5839 | return -EOPNOTSUPP; | |
67fbb16b | 5840 | |
4c476991 | 5841 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
5842 | } |
5843 | ||
5844 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
5845 | { | |
4c476991 JB |
5846 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5847 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 5848 | |
074ac8df | 5849 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5850 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5851 | return -EOPNOTSUPP; | |
67fbb16b | 5852 | |
4c476991 JB |
5853 | if (!rdev->ops->flush_pmksa) |
5854 | return -EOPNOTSUPP; | |
67fbb16b | 5855 | |
4c476991 | 5856 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
5857 | } |
5858 | ||
109086ce AN |
5859 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
5860 | { | |
5861 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5862 | struct net_device *dev = info->user_ptr[1]; | |
5863 | u8 action_code, dialog_token; | |
5864 | u16 status_code; | |
5865 | u8 *peer; | |
5866 | ||
5867 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5868 | !rdev->ops->tdls_mgmt) | |
5869 | return -EOPNOTSUPP; | |
5870 | ||
5871 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
5872 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
5873 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
5874 | !info->attrs[NL80211_ATTR_IE] || | |
5875 | !info->attrs[NL80211_ATTR_MAC]) | |
5876 | return -EINVAL; | |
5877 | ||
5878 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5879 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
5880 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
5881 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
5882 | ||
5883 | return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code, | |
5884 | dialog_token, status_code, | |
5885 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5886 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
5887 | } | |
5888 | ||
5889 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
5890 | { | |
5891 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5892 | struct net_device *dev = info->user_ptr[1]; | |
5893 | enum nl80211_tdls_operation operation; | |
5894 | u8 *peer; | |
5895 | ||
5896 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5897 | !rdev->ops->tdls_oper) | |
5898 | return -EOPNOTSUPP; | |
5899 | ||
5900 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
5901 | !info->attrs[NL80211_ATTR_MAC]) | |
5902 | return -EINVAL; | |
5903 | ||
5904 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
5905 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5906 | ||
5907 | return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation); | |
5908 | } | |
5909 | ||
9588bbd5 JM |
5910 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
5911 | struct genl_info *info) | |
5912 | { | |
4c476991 | 5913 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 5914 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 JM |
5915 | struct ieee80211_channel *chan; |
5916 | struct sk_buff *msg; | |
5917 | void *hdr; | |
5918 | u64 cookie; | |
5919 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
5920 | u32 freq, duration; | |
5921 | int err; | |
5922 | ||
5923 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5924 | !info->attrs[NL80211_ATTR_DURATION]) | |
5925 | return -EINVAL; | |
5926 | ||
5927 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
5928 | ||
ebf348fc JB |
5929 | if (!rdev->ops->remain_on_channel || |
5930 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
5931 | return -EOPNOTSUPP; | |
5932 | ||
9588bbd5 | 5933 | /* |
ebf348fc JB |
5934 | * We should be on that channel for at least a minimum amount of |
5935 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 5936 | */ |
ebf348fc | 5937 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 5938 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
5939 | return -EINVAL; |
5940 | ||
cd6c6598 JB |
5941 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && |
5942 | !nl80211_valid_channel_type(info, &channel_type)) | |
5943 | return -EINVAL; | |
9588bbd5 JM |
5944 | |
5945 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
5946 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
5947 | if (chan == NULL) |
5948 | return -EINVAL; | |
9588bbd5 JM |
5949 | |
5950 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
5951 | if (!msg) |
5952 | return -ENOMEM; | |
9588bbd5 | 5953 | |
15e47304 | 5954 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
9588bbd5 JM |
5955 | NL80211_CMD_REMAIN_ON_CHANNEL); |
5956 | ||
5957 | if (IS_ERR(hdr)) { | |
5958 | err = PTR_ERR(hdr); | |
5959 | goto free_msg; | |
5960 | } | |
5961 | ||
71bbc994 | 5962 | err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan, |
9588bbd5 JM |
5963 | channel_type, duration, &cookie); |
5964 | ||
5965 | if (err) | |
5966 | goto free_msg; | |
5967 | ||
9360ffd1 DM |
5968 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
5969 | goto nla_put_failure; | |
9588bbd5 JM |
5970 | |
5971 | genlmsg_end(msg, hdr); | |
4c476991 JB |
5972 | |
5973 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
5974 | |
5975 | nla_put_failure: | |
5976 | err = -ENOBUFS; | |
5977 | free_msg: | |
5978 | nlmsg_free(msg); | |
9588bbd5 JM |
5979 | return err; |
5980 | } | |
5981 | ||
5982 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
5983 | struct genl_info *info) | |
5984 | { | |
4c476991 | 5985 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 5986 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 | 5987 | u64 cookie; |
9588bbd5 JM |
5988 | |
5989 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5990 | return -EINVAL; | |
5991 | ||
4c476991 JB |
5992 | if (!rdev->ops->cancel_remain_on_channel) |
5993 | return -EOPNOTSUPP; | |
9588bbd5 | 5994 | |
9588bbd5 JM |
5995 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
5996 | ||
71bbc994 | 5997 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie); |
9588bbd5 JM |
5998 | } |
5999 | ||
13ae75b1 JM |
6000 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
6001 | u8 *rates, u8 rates_len) | |
6002 | { | |
6003 | u8 i; | |
6004 | u32 mask = 0; | |
6005 | ||
6006 | for (i = 0; i < rates_len; i++) { | |
6007 | int rate = (rates[i] & 0x7f) * 5; | |
6008 | int ridx; | |
6009 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
6010 | struct ieee80211_rate *srate = | |
6011 | &sband->bitrates[ridx]; | |
6012 | if (rate == srate->bitrate) { | |
6013 | mask |= 1 << ridx; | |
6014 | break; | |
6015 | } | |
6016 | } | |
6017 | if (ridx == sband->n_bitrates) | |
6018 | return 0; /* rate not found */ | |
6019 | } | |
6020 | ||
6021 | return mask; | |
6022 | } | |
6023 | ||
24db78c0 SW |
6024 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
6025 | u8 *rates, u8 rates_len, | |
6026 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
6027 | { | |
6028 | u8 i; | |
6029 | ||
6030 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
6031 | ||
6032 | for (i = 0; i < rates_len; i++) { | |
6033 | int ridx, rbit; | |
6034 | ||
6035 | ridx = rates[i] / 8; | |
6036 | rbit = BIT(rates[i] % 8); | |
6037 | ||
6038 | /* check validity */ | |
910570b5 | 6039 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
6040 | return false; |
6041 | ||
6042 | /* check availability */ | |
6043 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
6044 | mcs[ridx] |= rbit; | |
6045 | else | |
6046 | return false; | |
6047 | } | |
6048 | ||
6049 | return true; | |
6050 | } | |
6051 | ||
b54452b0 | 6052 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
6053 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
6054 | .len = NL80211_MAX_SUPP_RATES }, | |
24db78c0 SW |
6055 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, |
6056 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
13ae75b1 JM |
6057 | }; |
6058 | ||
6059 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
6060 | struct genl_info *info) | |
6061 | { | |
6062 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 6063 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 6064 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
6065 | int rem, i; |
6066 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
6067 | struct nlattr *tx_rates; |
6068 | struct ieee80211_supported_band *sband; | |
6069 | ||
6070 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
6071 | return -EINVAL; | |
6072 | ||
4c476991 JB |
6073 | if (!rdev->ops->set_bitrate_mask) |
6074 | return -EOPNOTSUPP; | |
13ae75b1 JM |
6075 | |
6076 | memset(&mask, 0, sizeof(mask)); | |
6077 | /* Default to all rates enabled */ | |
6078 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
6079 | sband = rdev->wiphy.bands[i]; | |
6080 | mask.control[i].legacy = | |
6081 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
24db78c0 SW |
6082 | if (sband) |
6083 | memcpy(mask.control[i].mcs, | |
6084 | sband->ht_cap.mcs.rx_mask, | |
6085 | sizeof(mask.control[i].mcs)); | |
6086 | else | |
6087 | memset(mask.control[i].mcs, 0, | |
6088 | sizeof(mask.control[i].mcs)); | |
13ae75b1 JM |
6089 | } |
6090 | ||
6091 | /* | |
6092 | * The nested attribute uses enum nl80211_band as the index. This maps | |
6093 | * directly to the enum ieee80211_band values used in cfg80211. | |
6094 | */ | |
24db78c0 | 6095 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
13ae75b1 JM |
6096 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) |
6097 | { | |
6098 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
6099 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
6100 | return -EINVAL; | |
13ae75b1 | 6101 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
6102 | if (sband == NULL) |
6103 | return -EINVAL; | |
13ae75b1 JM |
6104 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
6105 | nla_len(tx_rates), nl80211_txattr_policy); | |
6106 | if (tb[NL80211_TXRATE_LEGACY]) { | |
6107 | mask.control[band].legacy = rateset_to_mask( | |
6108 | sband, | |
6109 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
6110 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
6111 | if ((mask.control[band].legacy == 0) && |
6112 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
6113 | return -EINVAL; | |
24db78c0 SW |
6114 | } |
6115 | if (tb[NL80211_TXRATE_MCS]) { | |
6116 | if (!ht_rateset_to_mask( | |
6117 | sband, | |
6118 | nla_data(tb[NL80211_TXRATE_MCS]), | |
6119 | nla_len(tb[NL80211_TXRATE_MCS]), | |
6120 | mask.control[band].mcs)) | |
6121 | return -EINVAL; | |
6122 | } | |
6123 | ||
6124 | if (mask.control[band].legacy == 0) { | |
6125 | /* don't allow empty legacy rates if HT | |
6126 | * is not even supported. */ | |
6127 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) | |
6128 | return -EINVAL; | |
6129 | ||
6130 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
6131 | if (mask.control[band].mcs[i]) | |
6132 | break; | |
6133 | ||
6134 | /* legacy and mcs rates may not be both empty */ | |
6135 | if (i == IEEE80211_HT_MCS_MASK_LEN) | |
4c476991 | 6136 | return -EINVAL; |
13ae75b1 JM |
6137 | } |
6138 | } | |
6139 | ||
4c476991 | 6140 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
6141 | } |
6142 | ||
2e161f78 | 6143 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 6144 | { |
4c476991 | 6145 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6146 | struct wireless_dev *wdev = info->user_ptr[1]; |
2e161f78 | 6147 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
6148 | |
6149 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
6150 | return -EINVAL; | |
6151 | ||
2e161f78 JB |
6152 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
6153 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 6154 | |
71bbc994 JB |
6155 | switch (wdev->iftype) { |
6156 | case NL80211_IFTYPE_STATION: | |
6157 | case NL80211_IFTYPE_ADHOC: | |
6158 | case NL80211_IFTYPE_P2P_CLIENT: | |
6159 | case NL80211_IFTYPE_AP: | |
6160 | case NL80211_IFTYPE_AP_VLAN: | |
6161 | case NL80211_IFTYPE_MESH_POINT: | |
6162 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6163 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6164 | break; |
6165 | default: | |
4c476991 | 6166 | return -EOPNOTSUPP; |
71bbc994 | 6167 | } |
026331c4 JM |
6168 | |
6169 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
6170 | if (!rdev->ops->mgmt_tx) |
6171 | return -EOPNOTSUPP; | |
026331c4 | 6172 | |
15e47304 | 6173 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
026331c4 JM |
6174 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
6175 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
6176 | } |
6177 | ||
2e161f78 | 6178 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 6179 | { |
4c476991 | 6180 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 6181 | struct wireless_dev *wdev = info->user_ptr[1]; |
026331c4 JM |
6182 | struct ieee80211_channel *chan; |
6183 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 6184 | bool channel_type_valid = false; |
026331c4 JM |
6185 | u32 freq; |
6186 | int err; | |
d64d373f | 6187 | void *hdr = NULL; |
026331c4 | 6188 | u64 cookie; |
e247bd90 | 6189 | struct sk_buff *msg = NULL; |
f7ca38df | 6190 | unsigned int wait = 0; |
e247bd90 JB |
6191 | bool offchan, no_cck, dont_wait_for_ack; |
6192 | ||
6193 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; | |
026331c4 JM |
6194 | |
6195 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
6196 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
6197 | return -EINVAL; | |
6198 | ||
4c476991 JB |
6199 | if (!rdev->ops->mgmt_tx) |
6200 | return -EOPNOTSUPP; | |
026331c4 | 6201 | |
71bbc994 JB |
6202 | switch (wdev->iftype) { |
6203 | case NL80211_IFTYPE_STATION: | |
6204 | case NL80211_IFTYPE_ADHOC: | |
6205 | case NL80211_IFTYPE_P2P_CLIENT: | |
6206 | case NL80211_IFTYPE_AP: | |
6207 | case NL80211_IFTYPE_AP_VLAN: | |
6208 | case NL80211_IFTYPE_MESH_POINT: | |
6209 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6210 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6211 | break; |
6212 | default: | |
4c476991 | 6213 | return -EOPNOTSUPP; |
71bbc994 | 6214 | } |
026331c4 | 6215 | |
f7ca38df | 6216 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 6217 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df JB |
6218 | return -EINVAL; |
6219 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
ebf348fc JB |
6220 | |
6221 | /* | |
6222 | * We should wait on the channel for at least a minimum amount | |
6223 | * of time (10ms) but no longer than the driver supports. | |
6224 | */ | |
6225 | if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || | |
6226 | wait > rdev->wiphy.max_remain_on_channel_duration) | |
6227 | return -EINVAL; | |
6228 | ||
f7ca38df JB |
6229 | } |
6230 | ||
026331c4 | 6231 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
cd6c6598 | 6232 | if (!nl80211_valid_channel_type(info, &channel_type)) |
4c476991 | 6233 | return -EINVAL; |
252aa631 | 6234 | channel_type_valid = true; |
026331c4 JM |
6235 | } |
6236 | ||
f7ca38df JB |
6237 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
6238 | ||
7c4ef712 JB |
6239 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
6240 | return -EINVAL; | |
6241 | ||
e9f935e3 RM |
6242 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
6243 | ||
026331c4 JM |
6244 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); |
6245 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
6246 | if (chan == NULL) |
6247 | return -EINVAL; | |
026331c4 | 6248 | |
e247bd90 JB |
6249 | if (!dont_wait_for_ack) { |
6250 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6251 | if (!msg) | |
6252 | return -ENOMEM; | |
026331c4 | 6253 | |
15e47304 | 6254 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
e247bd90 | 6255 | NL80211_CMD_FRAME); |
026331c4 | 6256 | |
e247bd90 JB |
6257 | if (IS_ERR(hdr)) { |
6258 | err = PTR_ERR(hdr); | |
6259 | goto free_msg; | |
6260 | } | |
026331c4 | 6261 | } |
e247bd90 | 6262 | |
71bbc994 | 6263 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type, |
f7ca38df | 6264 | channel_type_valid, wait, |
2e161f78 JB |
6265 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
6266 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
e247bd90 | 6267 | no_cck, dont_wait_for_ack, &cookie); |
026331c4 JM |
6268 | if (err) |
6269 | goto free_msg; | |
6270 | ||
e247bd90 | 6271 | if (msg) { |
9360ffd1 DM |
6272 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6273 | goto nla_put_failure; | |
026331c4 | 6274 | |
e247bd90 JB |
6275 | genlmsg_end(msg, hdr); |
6276 | return genlmsg_reply(msg, info); | |
6277 | } | |
6278 | ||
6279 | return 0; | |
026331c4 JM |
6280 | |
6281 | nla_put_failure: | |
6282 | err = -ENOBUFS; | |
6283 | free_msg: | |
6284 | nlmsg_free(msg); | |
026331c4 JM |
6285 | return err; |
6286 | } | |
6287 | ||
f7ca38df JB |
6288 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
6289 | { | |
6290 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
71bbc994 | 6291 | struct wireless_dev *wdev = info->user_ptr[1]; |
f7ca38df JB |
6292 | u64 cookie; |
6293 | ||
6294 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
6295 | return -EINVAL; | |
6296 | ||
6297 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
6298 | return -EOPNOTSUPP; | |
6299 | ||
71bbc994 JB |
6300 | switch (wdev->iftype) { |
6301 | case NL80211_IFTYPE_STATION: | |
6302 | case NL80211_IFTYPE_ADHOC: | |
6303 | case NL80211_IFTYPE_P2P_CLIENT: | |
6304 | case NL80211_IFTYPE_AP: | |
6305 | case NL80211_IFTYPE_AP_VLAN: | |
6306 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 6307 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
6308 | break; |
6309 | default: | |
f7ca38df | 6310 | return -EOPNOTSUPP; |
71bbc994 | 6311 | } |
f7ca38df JB |
6312 | |
6313 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
6314 | ||
71bbc994 | 6315 | return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie); |
f7ca38df JB |
6316 | } |
6317 | ||
ffb9eb3d KV |
6318 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
6319 | { | |
4c476991 | 6320 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 6321 | struct wireless_dev *wdev; |
4c476991 | 6322 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
6323 | u8 ps_state; |
6324 | bool state; | |
6325 | int err; | |
6326 | ||
4c476991 JB |
6327 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
6328 | return -EINVAL; | |
ffb9eb3d KV |
6329 | |
6330 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
6331 | ||
4c476991 JB |
6332 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
6333 | return -EINVAL; | |
ffb9eb3d KV |
6334 | |
6335 | wdev = dev->ieee80211_ptr; | |
6336 | ||
4c476991 JB |
6337 | if (!rdev->ops->set_power_mgmt) |
6338 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
6339 | |
6340 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
6341 | ||
6342 | if (state == wdev->ps) | |
4c476991 | 6343 | return 0; |
ffb9eb3d | 6344 | |
4c476991 JB |
6345 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
6346 | wdev->ps_timeout); | |
6347 | if (!err) | |
6348 | wdev->ps = state; | |
ffb9eb3d KV |
6349 | return err; |
6350 | } | |
6351 | ||
6352 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
6353 | { | |
4c476991 | 6354 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
6355 | enum nl80211_ps_state ps_state; |
6356 | struct wireless_dev *wdev; | |
4c476991 | 6357 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
6358 | struct sk_buff *msg; |
6359 | void *hdr; | |
6360 | int err; | |
6361 | ||
ffb9eb3d KV |
6362 | wdev = dev->ieee80211_ptr; |
6363 | ||
4c476991 JB |
6364 | if (!rdev->ops->set_power_mgmt) |
6365 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
6366 | |
6367 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
6368 | if (!msg) |
6369 | return -ENOMEM; | |
ffb9eb3d | 6370 | |
15e47304 | 6371 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ffb9eb3d KV |
6372 | NL80211_CMD_GET_POWER_SAVE); |
6373 | if (!hdr) { | |
4c476991 | 6374 | err = -ENOBUFS; |
ffb9eb3d KV |
6375 | goto free_msg; |
6376 | } | |
6377 | ||
6378 | if (wdev->ps) | |
6379 | ps_state = NL80211_PS_ENABLED; | |
6380 | else | |
6381 | ps_state = NL80211_PS_DISABLED; | |
6382 | ||
9360ffd1 DM |
6383 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
6384 | goto nla_put_failure; | |
ffb9eb3d KV |
6385 | |
6386 | genlmsg_end(msg, hdr); | |
4c476991 | 6387 | return genlmsg_reply(msg, info); |
ffb9eb3d | 6388 | |
4c476991 | 6389 | nla_put_failure: |
ffb9eb3d | 6390 | err = -ENOBUFS; |
4c476991 | 6391 | free_msg: |
ffb9eb3d | 6392 | nlmsg_free(msg); |
ffb9eb3d KV |
6393 | return err; |
6394 | } | |
6395 | ||
d6dc1a38 JO |
6396 | static struct nla_policy |
6397 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
6398 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
6399 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
6400 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
84f10708 TP |
6401 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
6402 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
6403 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
d6dc1a38 JO |
6404 | }; |
6405 | ||
84f10708 TP |
6406 | static int nl80211_set_cqm_txe(struct genl_info *info, |
6407 | u32 rate, u32 pkts, u32 intvl) | |
6408 | { | |
6409 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6410 | struct wireless_dev *wdev; | |
6411 | struct net_device *dev = info->user_ptr[1]; | |
6412 | ||
6413 | if ((rate < 0 || rate > 100) || | |
6414 | (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL)) | |
6415 | return -EINVAL; | |
6416 | ||
6417 | wdev = dev->ieee80211_ptr; | |
6418 | ||
6419 | if (!rdev->ops->set_cqm_txe_config) | |
6420 | return -EOPNOTSUPP; | |
6421 | ||
6422 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
6423 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
6424 | return -EOPNOTSUPP; | |
6425 | ||
6426 | return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev, | |
6427 | rate, pkts, intvl); | |
6428 | } | |
6429 | ||
d6dc1a38 JO |
6430 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
6431 | s32 threshold, u32 hysteresis) | |
6432 | { | |
4c476991 | 6433 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 6434 | struct wireless_dev *wdev; |
4c476991 | 6435 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
6436 | |
6437 | if (threshold > 0) | |
6438 | return -EINVAL; | |
6439 | ||
d6dc1a38 JO |
6440 | wdev = dev->ieee80211_ptr; |
6441 | ||
4c476991 JB |
6442 | if (!rdev->ops->set_cqm_rssi_config) |
6443 | return -EOPNOTSUPP; | |
d6dc1a38 | 6444 | |
074ac8df | 6445 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6446 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6447 | return -EOPNOTSUPP; | |
d6dc1a38 | 6448 | |
4c476991 JB |
6449 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
6450 | threshold, hysteresis); | |
d6dc1a38 JO |
6451 | } |
6452 | ||
6453 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
6454 | { | |
6455 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
6456 | struct nlattr *cqm; | |
6457 | int err; | |
6458 | ||
6459 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
6460 | if (!cqm) { | |
6461 | err = -EINVAL; | |
6462 | goto out; | |
6463 | } | |
6464 | ||
6465 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
6466 | nl80211_attr_cqm_policy); | |
6467 | if (err) | |
6468 | goto out; | |
6469 | ||
6470 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
6471 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
6472 | s32 threshold; | |
6473 | u32 hysteresis; | |
6474 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
6475 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
6476 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
84f10708 TP |
6477 | } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] && |
6478 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
6479 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
6480 | u32 rate, pkts, intvl; | |
6481 | rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
6482 | pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
6483 | intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
6484 | err = nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
d6dc1a38 JO |
6485 | } else |
6486 | err = -EINVAL; | |
6487 | ||
6488 | out: | |
6489 | return err; | |
6490 | } | |
6491 | ||
29cbe68c JB |
6492 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
6493 | { | |
6494 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6495 | struct net_device *dev = info->user_ptr[1]; | |
6496 | struct mesh_config cfg; | |
c80d545d | 6497 | struct mesh_setup setup; |
29cbe68c JB |
6498 | int err; |
6499 | ||
6500 | /* start with default */ | |
6501 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 6502 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 6503 | |
24bdd9f4 | 6504 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 6505 | /* and parse parameters if given */ |
24bdd9f4 | 6506 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
6507 | if (err) |
6508 | return err; | |
6509 | } | |
6510 | ||
6511 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
6512 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
6513 | return -EINVAL; | |
6514 | ||
c80d545d JC |
6515 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
6516 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
6517 | ||
4bb62344 CYY |
6518 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
6519 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
6520 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
6521 | return -EINVAL; | |
6522 | ||
c80d545d JC |
6523 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
6524 | /* parse additional setup parameters if given */ | |
6525 | err = nl80211_parse_mesh_setup(info, &setup); | |
6526 | if (err) | |
6527 | return err; | |
6528 | } | |
6529 | ||
cc1d2806 JB |
6530 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
6531 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
6532 | ||
6533 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && | |
6534 | !nl80211_valid_channel_type(info, &channel_type)) | |
6535 | return -EINVAL; | |
6536 | ||
6537 | setup.channel = rdev_freq_to_chan(rdev, | |
6538 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
6539 | channel_type); | |
6540 | if (!setup.channel) | |
6541 | return -EINVAL; | |
6542 | setup.channel_type = channel_type; | |
6543 | } else { | |
6544 | /* cfg80211_join_mesh() will sort it out */ | |
6545 | setup.channel = NULL; | |
6546 | } | |
6547 | ||
c80d545d | 6548 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
6549 | } |
6550 | ||
6551 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
6552 | { | |
6553 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6554 | struct net_device *dev = info->user_ptr[1]; | |
6555 | ||
6556 | return cfg80211_leave_mesh(rdev, dev); | |
6557 | } | |
6558 | ||
dfb89c56 | 6559 | #ifdef CONFIG_PM |
ff1b6e69 JB |
6560 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
6561 | { | |
6562 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6563 | struct sk_buff *msg; | |
6564 | void *hdr; | |
6565 | ||
6566 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6567 | return -EOPNOTSUPP; | |
6568 | ||
6569 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6570 | if (!msg) | |
6571 | return -ENOMEM; | |
6572 | ||
15e47304 | 6573 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ff1b6e69 JB |
6574 | NL80211_CMD_GET_WOWLAN); |
6575 | if (!hdr) | |
6576 | goto nla_put_failure; | |
6577 | ||
6578 | if (rdev->wowlan) { | |
6579 | struct nlattr *nl_wowlan; | |
6580 | ||
6581 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
6582 | if (!nl_wowlan) | |
6583 | goto nla_put_failure; | |
6584 | ||
9360ffd1 DM |
6585 | if ((rdev->wowlan->any && |
6586 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || | |
6587 | (rdev->wowlan->disconnect && | |
6588 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || | |
6589 | (rdev->wowlan->magic_pkt && | |
6590 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || | |
6591 | (rdev->wowlan->gtk_rekey_failure && | |
6592 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || | |
6593 | (rdev->wowlan->eap_identity_req && | |
6594 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || | |
6595 | (rdev->wowlan->four_way_handshake && | |
6596 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || | |
6597 | (rdev->wowlan->rfkill_release && | |
6598 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) | |
6599 | goto nla_put_failure; | |
ff1b6e69 JB |
6600 | if (rdev->wowlan->n_patterns) { |
6601 | struct nlattr *nl_pats, *nl_pat; | |
6602 | int i, pat_len; | |
6603 | ||
6604 | nl_pats = nla_nest_start(msg, | |
6605 | NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
6606 | if (!nl_pats) | |
6607 | goto nla_put_failure; | |
6608 | ||
6609 | for (i = 0; i < rdev->wowlan->n_patterns; i++) { | |
6610 | nl_pat = nla_nest_start(msg, i + 1); | |
6611 | if (!nl_pat) | |
6612 | goto nla_put_failure; | |
6613 | pat_len = rdev->wowlan->patterns[i].pattern_len; | |
9360ffd1 DM |
6614 | if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK, |
6615 | DIV_ROUND_UP(pat_len, 8), | |
6616 | rdev->wowlan->patterns[i].mask) || | |
6617 | nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN, | |
6618 | pat_len, | |
6619 | rdev->wowlan->patterns[i].pattern)) | |
6620 | goto nla_put_failure; | |
ff1b6e69 JB |
6621 | nla_nest_end(msg, nl_pat); |
6622 | } | |
6623 | nla_nest_end(msg, nl_pats); | |
6624 | } | |
6625 | ||
6626 | nla_nest_end(msg, nl_wowlan); | |
6627 | } | |
6628 | ||
6629 | genlmsg_end(msg, hdr); | |
6630 | return genlmsg_reply(msg, info); | |
6631 | ||
6632 | nla_put_failure: | |
6633 | nlmsg_free(msg); | |
6634 | return -ENOBUFS; | |
6635 | } | |
6636 | ||
6637 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) | |
6638 | { | |
6639 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6640 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
ff1b6e69 | 6641 | struct cfg80211_wowlan new_triggers = {}; |
ae33bd81 | 6642 | struct cfg80211_wowlan *ntrig; |
ff1b6e69 JB |
6643 | struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; |
6644 | int err, i; | |
6d52563f | 6645 | bool prev_enabled = rdev->wowlan; |
ff1b6e69 JB |
6646 | |
6647 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6648 | return -EOPNOTSUPP; | |
6649 | ||
ae33bd81 JB |
6650 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
6651 | cfg80211_rdev_free_wowlan(rdev); | |
6652 | rdev->wowlan = NULL; | |
6653 | goto set_wakeup; | |
6654 | } | |
ff1b6e69 JB |
6655 | |
6656 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
6657 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6658 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6659 | nl80211_wowlan_policy); | |
6660 | if (err) | |
6661 | return err; | |
6662 | ||
6663 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
6664 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
6665 | return -EINVAL; | |
6666 | new_triggers.any = true; | |
6667 | } | |
6668 | ||
6669 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
6670 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
6671 | return -EINVAL; | |
6672 | new_triggers.disconnect = true; | |
6673 | } | |
6674 | ||
6675 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
6676 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
6677 | return -EINVAL; | |
6678 | new_triggers.magic_pkt = true; | |
6679 | } | |
6680 | ||
77dbbb13 JB |
6681 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
6682 | return -EINVAL; | |
6683 | ||
6684 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
6685 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
6686 | return -EINVAL; | |
6687 | new_triggers.gtk_rekey_failure = true; | |
6688 | } | |
6689 | ||
6690 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
6691 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
6692 | return -EINVAL; | |
6693 | new_triggers.eap_identity_req = true; | |
6694 | } | |
6695 | ||
6696 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
6697 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
6698 | return -EINVAL; | |
6699 | new_triggers.four_way_handshake = true; | |
6700 | } | |
6701 | ||
6702 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
6703 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
6704 | return -EINVAL; | |
6705 | new_triggers.rfkill_release = true; | |
6706 | } | |
6707 | ||
ff1b6e69 JB |
6708 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
6709 | struct nlattr *pat; | |
6710 | int n_patterns = 0; | |
6711 | int rem, pat_len, mask_len; | |
6712 | struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; | |
6713 | ||
6714 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6715 | rem) | |
6716 | n_patterns++; | |
6717 | if (n_patterns > wowlan->n_patterns) | |
6718 | return -EINVAL; | |
6719 | ||
6720 | new_triggers.patterns = kcalloc(n_patterns, | |
6721 | sizeof(new_triggers.patterns[0]), | |
6722 | GFP_KERNEL); | |
6723 | if (!new_triggers.patterns) | |
6724 | return -ENOMEM; | |
6725 | ||
6726 | new_triggers.n_patterns = n_patterns; | |
6727 | i = 0; | |
6728 | ||
6729 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6730 | rem) { | |
6731 | nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, | |
6732 | nla_data(pat), nla_len(pat), NULL); | |
6733 | err = -EINVAL; | |
6734 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || | |
6735 | !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) | |
6736 | goto error; | |
6737 | pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); | |
6738 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
6739 | if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != | |
6740 | mask_len) | |
6741 | goto error; | |
6742 | if (pat_len > wowlan->pattern_max_len || | |
6743 | pat_len < wowlan->pattern_min_len) | |
6744 | goto error; | |
6745 | ||
6746 | new_triggers.patterns[i].mask = | |
6747 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
6748 | if (!new_triggers.patterns[i].mask) { | |
6749 | err = -ENOMEM; | |
6750 | goto error; | |
6751 | } | |
6752 | new_triggers.patterns[i].pattern = | |
6753 | new_triggers.patterns[i].mask + mask_len; | |
6754 | memcpy(new_triggers.patterns[i].mask, | |
6755 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), | |
6756 | mask_len); | |
6757 | new_triggers.patterns[i].pattern_len = pat_len; | |
6758 | memcpy(new_triggers.patterns[i].pattern, | |
6759 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), | |
6760 | pat_len); | |
6761 | i++; | |
6762 | } | |
6763 | } | |
6764 | ||
ae33bd81 JB |
6765 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
6766 | if (!ntrig) { | |
6767 | err = -ENOMEM; | |
6768 | goto error; | |
ff1b6e69 | 6769 | } |
ae33bd81 JB |
6770 | cfg80211_rdev_free_wowlan(rdev); |
6771 | rdev->wowlan = ntrig; | |
ff1b6e69 | 6772 | |
ae33bd81 | 6773 | set_wakeup: |
6d52563f JB |
6774 | if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan) |
6775 | rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan); | |
6776 | ||
ff1b6e69 JB |
6777 | return 0; |
6778 | error: | |
6779 | for (i = 0; i < new_triggers.n_patterns; i++) | |
6780 | kfree(new_triggers.patterns[i].mask); | |
6781 | kfree(new_triggers.patterns); | |
6782 | return err; | |
6783 | } | |
dfb89c56 | 6784 | #endif |
ff1b6e69 | 6785 | |
e5497d76 JB |
6786 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
6787 | { | |
6788 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6789 | struct net_device *dev = info->user_ptr[1]; | |
6790 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6791 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
6792 | struct cfg80211_gtk_rekey_data rekey_data; | |
6793 | int err; | |
6794 | ||
6795 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
6796 | return -EINVAL; | |
6797 | ||
6798 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
6799 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6800 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6801 | nl80211_rekey_policy); | |
6802 | if (err) | |
6803 | return err; | |
6804 | ||
6805 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
6806 | return -ERANGE; | |
6807 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
6808 | return -ERANGE; | |
6809 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
6810 | return -ERANGE; | |
6811 | ||
6812 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
6813 | NL80211_KEK_LEN); | |
6814 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
6815 | NL80211_KCK_LEN); | |
6816 | memcpy(rekey_data.replay_ctr, | |
6817 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
6818 | NL80211_REPLAY_CTR_LEN); | |
6819 | ||
6820 | wdev_lock(wdev); | |
6821 | if (!wdev->current_bss) { | |
6822 | err = -ENOTCONN; | |
6823 | goto out; | |
6824 | } | |
6825 | ||
6826 | if (!rdev->ops->set_rekey_data) { | |
6827 | err = -EOPNOTSUPP; | |
6828 | goto out; | |
6829 | } | |
6830 | ||
6831 | err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data); | |
6832 | out: | |
6833 | wdev_unlock(wdev); | |
6834 | return err; | |
6835 | } | |
6836 | ||
28946da7 JB |
6837 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
6838 | struct genl_info *info) | |
6839 | { | |
6840 | struct net_device *dev = info->user_ptr[1]; | |
6841 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6842 | ||
6843 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6844 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6845 | return -EINVAL; | |
6846 | ||
15e47304 | 6847 | if (wdev->ap_unexpected_nlportid) |
28946da7 JB |
6848 | return -EBUSY; |
6849 | ||
15e47304 | 6850 | wdev->ap_unexpected_nlportid = info->snd_portid; |
28946da7 JB |
6851 | return 0; |
6852 | } | |
6853 | ||
7f6cf311 JB |
6854 | static int nl80211_probe_client(struct sk_buff *skb, |
6855 | struct genl_info *info) | |
6856 | { | |
6857 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6858 | struct net_device *dev = info->user_ptr[1]; | |
6859 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6860 | struct sk_buff *msg; | |
6861 | void *hdr; | |
6862 | const u8 *addr; | |
6863 | u64 cookie; | |
6864 | int err; | |
6865 | ||
6866 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6867 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6868 | return -EOPNOTSUPP; | |
6869 | ||
6870 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6871 | return -EINVAL; | |
6872 | ||
6873 | if (!rdev->ops->probe_client) | |
6874 | return -EOPNOTSUPP; | |
6875 | ||
6876 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6877 | if (!msg) | |
6878 | return -ENOMEM; | |
6879 | ||
15e47304 | 6880 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7f6cf311 JB |
6881 | NL80211_CMD_PROBE_CLIENT); |
6882 | ||
6883 | if (IS_ERR(hdr)) { | |
6884 | err = PTR_ERR(hdr); | |
6885 | goto free_msg; | |
6886 | } | |
6887 | ||
6888 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6889 | ||
6890 | err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie); | |
6891 | if (err) | |
6892 | goto free_msg; | |
6893 | ||
9360ffd1 DM |
6894 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
6895 | goto nla_put_failure; | |
7f6cf311 JB |
6896 | |
6897 | genlmsg_end(msg, hdr); | |
6898 | ||
6899 | return genlmsg_reply(msg, info); | |
6900 | ||
6901 | nla_put_failure: | |
6902 | err = -ENOBUFS; | |
6903 | free_msg: | |
6904 | nlmsg_free(msg); | |
6905 | return err; | |
6906 | } | |
6907 | ||
5e760230 JB |
6908 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
6909 | { | |
6910 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6911 | ||
6912 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
6913 | return -EOPNOTSUPP; | |
6914 | ||
15e47304 | 6915 | if (rdev->ap_beacons_nlportid) |
5e760230 JB |
6916 | return -EBUSY; |
6917 | ||
15e47304 | 6918 | rdev->ap_beacons_nlportid = info->snd_portid; |
5e760230 JB |
6919 | |
6920 | return 0; | |
6921 | } | |
6922 | ||
98104fde JB |
6923 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
6924 | { | |
6925 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6926 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6927 | int err; | |
6928 | ||
6929 | if (!rdev->ops->start_p2p_device) | |
6930 | return -EOPNOTSUPP; | |
6931 | ||
6932 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
6933 | return -EOPNOTSUPP; | |
6934 | ||
6935 | if (wdev->p2p_started) | |
6936 | return 0; | |
6937 | ||
6938 | mutex_lock(&rdev->devlist_mtx); | |
6939 | err = cfg80211_can_add_interface(rdev, wdev->iftype); | |
6940 | mutex_unlock(&rdev->devlist_mtx); | |
6941 | if (err) | |
6942 | return err; | |
6943 | ||
6944 | err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev); | |
6945 | if (err) | |
6946 | return err; | |
6947 | ||
6948 | wdev->p2p_started = true; | |
6949 | mutex_lock(&rdev->devlist_mtx); | |
6950 | rdev->opencount++; | |
6951 | mutex_unlock(&rdev->devlist_mtx); | |
6952 | ||
6953 | return 0; | |
6954 | } | |
6955 | ||
6956 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
6957 | { | |
6958 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6959 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6960 | ||
6961 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
6962 | return -EOPNOTSUPP; | |
6963 | ||
6964 | if (!rdev->ops->stop_p2p_device) | |
6965 | return -EOPNOTSUPP; | |
6966 | ||
6967 | if (!wdev->p2p_started) | |
6968 | return 0; | |
6969 | ||
6970 | rdev->ops->stop_p2p_device(&rdev->wiphy, wdev); | |
6971 | wdev->p2p_started = false; | |
6972 | ||
6973 | mutex_lock(&rdev->devlist_mtx); | |
6974 | rdev->opencount--; | |
6975 | mutex_unlock(&rdev->devlist_mtx); | |
6976 | ||
6977 | if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) { | |
6978 | rdev->scan_req->aborted = true; | |
6979 | ___cfg80211_scan_done(rdev, true); | |
6980 | } | |
6981 | ||
6982 | return 0; | |
6983 | } | |
6984 | ||
4c476991 JB |
6985 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
6986 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
6987 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
6988 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
6989 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
6990 | NL80211_FLAG_CHECK_NETDEV_UP) | |
1bf614ef | 6991 | #define NL80211_FLAG_NEED_WDEV 0x10 |
98104fde | 6992 | /* If a netdev is associated, it must be UP, P2P must be started */ |
1bf614ef JB |
6993 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
6994 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
6995 | |
6996 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6997 | struct genl_info *info) | |
6998 | { | |
6999 | struct cfg80211_registered_device *rdev; | |
89a54e48 | 7000 | struct wireless_dev *wdev; |
4c476991 | 7001 | struct net_device *dev; |
4c476991 JB |
7002 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
7003 | ||
7004 | if (rtnl) | |
7005 | rtnl_lock(); | |
7006 | ||
7007 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4f7eff10 | 7008 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
4c476991 JB |
7009 | if (IS_ERR(rdev)) { |
7010 | if (rtnl) | |
7011 | rtnl_unlock(); | |
7012 | return PTR_ERR(rdev); | |
7013 | } | |
7014 | info->user_ptr[0] = rdev; | |
1bf614ef JB |
7015 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
7016 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
89a54e48 JB |
7017 | mutex_lock(&cfg80211_mutex); |
7018 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), | |
7019 | info->attrs); | |
7020 | if (IS_ERR(wdev)) { | |
7021 | mutex_unlock(&cfg80211_mutex); | |
4c476991 JB |
7022 | if (rtnl) |
7023 | rtnl_unlock(); | |
89a54e48 | 7024 | return PTR_ERR(wdev); |
4c476991 | 7025 | } |
89a54e48 | 7026 | |
89a54e48 JB |
7027 | dev = wdev->netdev; |
7028 | rdev = wiphy_to_dev(wdev->wiphy); | |
7029 | ||
1bf614ef JB |
7030 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
7031 | if (!dev) { | |
7032 | mutex_unlock(&cfg80211_mutex); | |
7033 | if (rtnl) | |
7034 | rtnl_unlock(); | |
7035 | return -EINVAL; | |
7036 | } | |
7037 | ||
7038 | info->user_ptr[1] = dev; | |
7039 | } else { | |
7040 | info->user_ptr[1] = wdev; | |
41265714 | 7041 | } |
1bf614ef JB |
7042 | |
7043 | if (dev) { | |
7044 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
7045 | !netif_running(dev)) { | |
7046 | mutex_unlock(&cfg80211_mutex); | |
7047 | if (rtnl) | |
7048 | rtnl_unlock(); | |
7049 | return -ENETDOWN; | |
7050 | } | |
7051 | ||
7052 | dev_hold(dev); | |
98104fde JB |
7053 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
7054 | if (!wdev->p2p_started) { | |
7055 | mutex_unlock(&cfg80211_mutex); | |
7056 | if (rtnl) | |
7057 | rtnl_unlock(); | |
7058 | return -ENETDOWN; | |
7059 | } | |
41265714 | 7060 | } |
89a54e48 | 7061 | |
89a54e48 JB |
7062 | cfg80211_lock_rdev(rdev); |
7063 | ||
7064 | mutex_unlock(&cfg80211_mutex); | |
7065 | ||
4c476991 | 7066 | info->user_ptr[0] = rdev; |
4c476991 JB |
7067 | } |
7068 | ||
7069 | return 0; | |
7070 | } | |
7071 | ||
7072 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
7073 | struct genl_info *info) | |
7074 | { | |
7075 | if (info->user_ptr[0]) | |
7076 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
1bf614ef JB |
7077 | if (info->user_ptr[1]) { |
7078 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
7079 | struct wireless_dev *wdev = info->user_ptr[1]; | |
7080 | ||
7081 | if (wdev->netdev) | |
7082 | dev_put(wdev->netdev); | |
7083 | } else { | |
7084 | dev_put(info->user_ptr[1]); | |
7085 | } | |
7086 | } | |
4c476991 JB |
7087 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
7088 | rtnl_unlock(); | |
7089 | } | |
7090 | ||
55682965 JB |
7091 | static struct genl_ops nl80211_ops[] = { |
7092 | { | |
7093 | .cmd = NL80211_CMD_GET_WIPHY, | |
7094 | .doit = nl80211_get_wiphy, | |
7095 | .dumpit = nl80211_dump_wiphy, | |
7096 | .policy = nl80211_policy, | |
7097 | /* can be retrieved by unprivileged users */ | |
4c476991 | 7098 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
7099 | }, |
7100 | { | |
7101 | .cmd = NL80211_CMD_SET_WIPHY, | |
7102 | .doit = nl80211_set_wiphy, | |
7103 | .policy = nl80211_policy, | |
7104 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 7105 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
7106 | }, |
7107 | { | |
7108 | .cmd = NL80211_CMD_GET_INTERFACE, | |
7109 | .doit = nl80211_get_interface, | |
7110 | .dumpit = nl80211_dump_interface, | |
7111 | .policy = nl80211_policy, | |
7112 | /* can be retrieved by unprivileged users */ | |
72fb2abc | 7113 | .internal_flags = NL80211_FLAG_NEED_WDEV, |
55682965 JB |
7114 | }, |
7115 | { | |
7116 | .cmd = NL80211_CMD_SET_INTERFACE, | |
7117 | .doit = nl80211_set_interface, | |
7118 | .policy = nl80211_policy, | |
7119 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7120 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7121 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
7122 | }, |
7123 | { | |
7124 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
7125 | .doit = nl80211_new_interface, | |
7126 | .policy = nl80211_policy, | |
7127 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7128 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7129 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
7130 | }, |
7131 | { | |
7132 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
7133 | .doit = nl80211_del_interface, | |
7134 | .policy = nl80211_policy, | |
41ade00f | 7135 | .flags = GENL_ADMIN_PERM, |
84efbb84 | 7136 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 7137 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7138 | }, |
7139 | { | |
7140 | .cmd = NL80211_CMD_GET_KEY, | |
7141 | .doit = nl80211_get_key, | |
7142 | .policy = nl80211_policy, | |
7143 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7144 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7145 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7146 | }, |
7147 | { | |
7148 | .cmd = NL80211_CMD_SET_KEY, | |
7149 | .doit = nl80211_set_key, | |
7150 | .policy = nl80211_policy, | |
7151 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7152 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7153 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7154 | }, |
7155 | { | |
7156 | .cmd = NL80211_CMD_NEW_KEY, | |
7157 | .doit = nl80211_new_key, | |
7158 | .policy = nl80211_policy, | |
7159 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7160 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7161 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
7162 | }, |
7163 | { | |
7164 | .cmd = NL80211_CMD_DEL_KEY, | |
7165 | .doit = nl80211_del_key, | |
7166 | .policy = nl80211_policy, | |
55682965 | 7167 | .flags = GENL_ADMIN_PERM, |
41265714 | 7168 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7169 | NL80211_FLAG_NEED_RTNL, |
55682965 | 7170 | }, |
ed1b6cc7 JB |
7171 | { |
7172 | .cmd = NL80211_CMD_SET_BEACON, | |
7173 | .policy = nl80211_policy, | |
7174 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7175 | .doit = nl80211_set_beacon, |
2b5f8b0b | 7176 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7177 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
7178 | }, |
7179 | { | |
8860020e | 7180 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
7181 | .policy = nl80211_policy, |
7182 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7183 | .doit = nl80211_start_ap, |
2b5f8b0b | 7184 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7185 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
7186 | }, |
7187 | { | |
8860020e | 7188 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
7189 | .policy = nl80211_policy, |
7190 | .flags = GENL_ADMIN_PERM, | |
8860020e | 7191 | .doit = nl80211_stop_ap, |
2b5f8b0b | 7192 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7193 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 7194 | }, |
5727ef1b JB |
7195 | { |
7196 | .cmd = NL80211_CMD_GET_STATION, | |
7197 | .doit = nl80211_get_station, | |
2ec600d6 | 7198 | .dumpit = nl80211_dump_station, |
5727ef1b | 7199 | .policy = nl80211_policy, |
4c476991 JB |
7200 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7201 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
7202 | }, |
7203 | { | |
7204 | .cmd = NL80211_CMD_SET_STATION, | |
7205 | .doit = nl80211_set_station, | |
7206 | .policy = nl80211_policy, | |
7207 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7208 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7209 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
7210 | }, |
7211 | { | |
7212 | .cmd = NL80211_CMD_NEW_STATION, | |
7213 | .doit = nl80211_new_station, | |
7214 | .policy = nl80211_policy, | |
7215 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7216 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7217 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
7218 | }, |
7219 | { | |
7220 | .cmd = NL80211_CMD_DEL_STATION, | |
7221 | .doit = nl80211_del_station, | |
7222 | .policy = nl80211_policy, | |
2ec600d6 | 7223 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7224 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7225 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7226 | }, |
7227 | { | |
7228 | .cmd = NL80211_CMD_GET_MPATH, | |
7229 | .doit = nl80211_get_mpath, | |
7230 | .dumpit = nl80211_dump_mpath, | |
7231 | .policy = nl80211_policy, | |
7232 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7233 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7234 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7235 | }, |
7236 | { | |
7237 | .cmd = NL80211_CMD_SET_MPATH, | |
7238 | .doit = nl80211_set_mpath, | |
7239 | .policy = nl80211_policy, | |
7240 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7241 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7242 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7243 | }, |
7244 | { | |
7245 | .cmd = NL80211_CMD_NEW_MPATH, | |
7246 | .doit = nl80211_new_mpath, | |
7247 | .policy = nl80211_policy, | |
7248 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7249 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7250 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
7251 | }, |
7252 | { | |
7253 | .cmd = NL80211_CMD_DEL_MPATH, | |
7254 | .doit = nl80211_del_mpath, | |
7255 | .policy = nl80211_policy, | |
9f1ba906 | 7256 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7257 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7258 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
7259 | }, |
7260 | { | |
7261 | .cmd = NL80211_CMD_SET_BSS, | |
7262 | .doit = nl80211_set_bss, | |
7263 | .policy = nl80211_policy, | |
b2e1b302 | 7264 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 7265 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7266 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 7267 | }, |
f130347c LR |
7268 | { |
7269 | .cmd = NL80211_CMD_GET_REG, | |
7270 | .doit = nl80211_get_reg, | |
7271 | .policy = nl80211_policy, | |
7272 | /* can be retrieved by unprivileged users */ | |
7273 | }, | |
b2e1b302 LR |
7274 | { |
7275 | .cmd = NL80211_CMD_SET_REG, | |
7276 | .doit = nl80211_set_reg, | |
7277 | .policy = nl80211_policy, | |
7278 | .flags = GENL_ADMIN_PERM, | |
7279 | }, | |
7280 | { | |
7281 | .cmd = NL80211_CMD_REQ_SET_REG, | |
7282 | .doit = nl80211_req_set_reg, | |
7283 | .policy = nl80211_policy, | |
93da9cc1 | 7284 | .flags = GENL_ADMIN_PERM, |
7285 | }, | |
7286 | { | |
24bdd9f4 JC |
7287 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
7288 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 7289 | .policy = nl80211_policy, |
7290 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 7291 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7292 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 7293 | }, |
7294 | { | |
24bdd9f4 JC |
7295 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
7296 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 7297 | .policy = nl80211_policy, |
9aed3cc1 | 7298 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 7299 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7300 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 7301 | }, |
2a519311 JB |
7302 | { |
7303 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
7304 | .doit = nl80211_trigger_scan, | |
7305 | .policy = nl80211_policy, | |
7306 | .flags = GENL_ADMIN_PERM, | |
fd014284 | 7307 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7308 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
7309 | }, |
7310 | { | |
7311 | .cmd = NL80211_CMD_GET_SCAN, | |
7312 | .policy = nl80211_policy, | |
7313 | .dumpit = nl80211_dump_scan, | |
7314 | }, | |
807f8a8c LC |
7315 | { |
7316 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
7317 | .doit = nl80211_start_sched_scan, | |
7318 | .policy = nl80211_policy, | |
7319 | .flags = GENL_ADMIN_PERM, | |
7320 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7321 | NL80211_FLAG_NEED_RTNL, | |
7322 | }, | |
7323 | { | |
7324 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
7325 | .doit = nl80211_stop_sched_scan, | |
7326 | .policy = nl80211_policy, | |
7327 | .flags = GENL_ADMIN_PERM, | |
7328 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7329 | NL80211_FLAG_NEED_RTNL, | |
7330 | }, | |
636a5d36 JM |
7331 | { |
7332 | .cmd = NL80211_CMD_AUTHENTICATE, | |
7333 | .doit = nl80211_authenticate, | |
7334 | .policy = nl80211_policy, | |
7335 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7336 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7337 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7338 | }, |
7339 | { | |
7340 | .cmd = NL80211_CMD_ASSOCIATE, | |
7341 | .doit = nl80211_associate, | |
7342 | .policy = nl80211_policy, | |
7343 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7344 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7345 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7346 | }, |
7347 | { | |
7348 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
7349 | .doit = nl80211_deauthenticate, | |
7350 | .policy = nl80211_policy, | |
7351 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7352 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7353 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
7354 | }, |
7355 | { | |
7356 | .cmd = NL80211_CMD_DISASSOCIATE, | |
7357 | .doit = nl80211_disassociate, | |
7358 | .policy = nl80211_policy, | |
7359 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7360 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7361 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 7362 | }, |
04a773ad JB |
7363 | { |
7364 | .cmd = NL80211_CMD_JOIN_IBSS, | |
7365 | .doit = nl80211_join_ibss, | |
7366 | .policy = nl80211_policy, | |
7367 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7368 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7369 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
7370 | }, |
7371 | { | |
7372 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
7373 | .doit = nl80211_leave_ibss, | |
7374 | .policy = nl80211_policy, | |
7375 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7376 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7377 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 7378 | }, |
aff89a9b JB |
7379 | #ifdef CONFIG_NL80211_TESTMODE |
7380 | { | |
7381 | .cmd = NL80211_CMD_TESTMODE, | |
7382 | .doit = nl80211_testmode_do, | |
71063f0e | 7383 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
7384 | .policy = nl80211_policy, |
7385 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7386 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7387 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
7388 | }, |
7389 | #endif | |
b23aa676 SO |
7390 | { |
7391 | .cmd = NL80211_CMD_CONNECT, | |
7392 | .doit = nl80211_connect, | |
7393 | .policy = nl80211_policy, | |
7394 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7395 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7396 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
7397 | }, |
7398 | { | |
7399 | .cmd = NL80211_CMD_DISCONNECT, | |
7400 | .doit = nl80211_disconnect, | |
7401 | .policy = nl80211_policy, | |
7402 | .flags = GENL_ADMIN_PERM, | |
41265714 | 7403 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7404 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 7405 | }, |
463d0183 JB |
7406 | { |
7407 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
7408 | .doit = nl80211_wiphy_netns, | |
7409 | .policy = nl80211_policy, | |
7410 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7411 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
7412 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 7413 | }, |
61fa713c HS |
7414 | { |
7415 | .cmd = NL80211_CMD_GET_SURVEY, | |
7416 | .policy = nl80211_policy, | |
7417 | .dumpit = nl80211_dump_survey, | |
7418 | }, | |
67fbb16b SO |
7419 | { |
7420 | .cmd = NL80211_CMD_SET_PMKSA, | |
7421 | .doit = nl80211_setdel_pmksa, | |
7422 | .policy = nl80211_policy, | |
7423 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7424 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7425 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
7426 | }, |
7427 | { | |
7428 | .cmd = NL80211_CMD_DEL_PMKSA, | |
7429 | .doit = nl80211_setdel_pmksa, | |
7430 | .policy = nl80211_policy, | |
7431 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7432 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7433 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
7434 | }, |
7435 | { | |
7436 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
7437 | .doit = nl80211_flush_pmksa, | |
7438 | .policy = nl80211_policy, | |
7439 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7440 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 7441 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 7442 | }, |
9588bbd5 JM |
7443 | { |
7444 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
7445 | .doit = nl80211_remain_on_channel, | |
7446 | .policy = nl80211_policy, | |
7447 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 7448 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7449 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
7450 | }, |
7451 | { | |
7452 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
7453 | .doit = nl80211_cancel_remain_on_channel, | |
7454 | .policy = nl80211_policy, | |
7455 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 7456 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7457 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 7458 | }, |
13ae75b1 JM |
7459 | { |
7460 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
7461 | .doit = nl80211_set_tx_bitrate_mask, | |
7462 | .policy = nl80211_policy, | |
7463 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7464 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7465 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 7466 | }, |
026331c4 | 7467 | { |
2e161f78 JB |
7468 | .cmd = NL80211_CMD_REGISTER_FRAME, |
7469 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
7470 | .policy = nl80211_policy, |
7471 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 7472 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 7473 | NL80211_FLAG_NEED_RTNL, |
026331c4 JM |
7474 | }, |
7475 | { | |
2e161f78 JB |
7476 | .cmd = NL80211_CMD_FRAME, |
7477 | .doit = nl80211_tx_mgmt, | |
026331c4 | 7478 | .policy = nl80211_policy, |
f7ca38df | 7479 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 7480 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
f7ca38df JB |
7481 | NL80211_FLAG_NEED_RTNL, |
7482 | }, | |
7483 | { | |
7484 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
7485 | .doit = nl80211_tx_mgmt_cancel_wait, | |
7486 | .policy = nl80211_policy, | |
026331c4 | 7487 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 7488 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 7489 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 7490 | }, |
ffb9eb3d KV |
7491 | { |
7492 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
7493 | .doit = nl80211_set_power_save, | |
7494 | .policy = nl80211_policy, | |
7495 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7496 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7497 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
7498 | }, |
7499 | { | |
7500 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
7501 | .doit = nl80211_get_power_save, | |
7502 | .policy = nl80211_policy, | |
7503 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
7504 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7505 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 7506 | }, |
d6dc1a38 JO |
7507 | { |
7508 | .cmd = NL80211_CMD_SET_CQM, | |
7509 | .doit = nl80211_set_cqm, | |
7510 | .policy = nl80211_policy, | |
7511 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7512 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7513 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 7514 | }, |
f444de05 JB |
7515 | { |
7516 | .cmd = NL80211_CMD_SET_CHANNEL, | |
7517 | .doit = nl80211_set_channel, | |
7518 | .policy = nl80211_policy, | |
7519 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
7520 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7521 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 7522 | }, |
e8347eba BJ |
7523 | { |
7524 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
7525 | .doit = nl80211_set_wds_peer, | |
7526 | .policy = nl80211_policy, | |
7527 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
7528 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
7529 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 7530 | }, |
29cbe68c JB |
7531 | { |
7532 | .cmd = NL80211_CMD_JOIN_MESH, | |
7533 | .doit = nl80211_join_mesh, | |
7534 | .policy = nl80211_policy, | |
7535 | .flags = GENL_ADMIN_PERM, | |
7536 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7537 | NL80211_FLAG_NEED_RTNL, | |
7538 | }, | |
7539 | { | |
7540 | .cmd = NL80211_CMD_LEAVE_MESH, | |
7541 | .doit = nl80211_leave_mesh, | |
7542 | .policy = nl80211_policy, | |
7543 | .flags = GENL_ADMIN_PERM, | |
7544 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7545 | NL80211_FLAG_NEED_RTNL, | |
7546 | }, | |
dfb89c56 | 7547 | #ifdef CONFIG_PM |
ff1b6e69 JB |
7548 | { |
7549 | .cmd = NL80211_CMD_GET_WOWLAN, | |
7550 | .doit = nl80211_get_wowlan, | |
7551 | .policy = nl80211_policy, | |
7552 | /* can be retrieved by unprivileged users */ | |
7553 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7554 | NL80211_FLAG_NEED_RTNL, | |
7555 | }, | |
7556 | { | |
7557 | .cmd = NL80211_CMD_SET_WOWLAN, | |
7558 | .doit = nl80211_set_wowlan, | |
7559 | .policy = nl80211_policy, | |
7560 | .flags = GENL_ADMIN_PERM, | |
7561 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7562 | NL80211_FLAG_NEED_RTNL, | |
7563 | }, | |
dfb89c56 | 7564 | #endif |
e5497d76 JB |
7565 | { |
7566 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
7567 | .doit = nl80211_set_rekey_data, | |
7568 | .policy = nl80211_policy, | |
7569 | .flags = GENL_ADMIN_PERM, | |
7570 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7571 | NL80211_FLAG_NEED_RTNL, | |
7572 | }, | |
109086ce AN |
7573 | { |
7574 | .cmd = NL80211_CMD_TDLS_MGMT, | |
7575 | .doit = nl80211_tdls_mgmt, | |
7576 | .policy = nl80211_policy, | |
7577 | .flags = GENL_ADMIN_PERM, | |
7578 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7579 | NL80211_FLAG_NEED_RTNL, | |
7580 | }, | |
7581 | { | |
7582 | .cmd = NL80211_CMD_TDLS_OPER, | |
7583 | .doit = nl80211_tdls_oper, | |
7584 | .policy = nl80211_policy, | |
7585 | .flags = GENL_ADMIN_PERM, | |
7586 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
7587 | NL80211_FLAG_NEED_RTNL, | |
7588 | }, | |
28946da7 JB |
7589 | { |
7590 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
7591 | .doit = nl80211_register_unexpected_frame, | |
7592 | .policy = nl80211_policy, | |
7593 | .flags = GENL_ADMIN_PERM, | |
7594 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7595 | NL80211_FLAG_NEED_RTNL, | |
7596 | }, | |
7f6cf311 JB |
7597 | { |
7598 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
7599 | .doit = nl80211_probe_client, | |
7600 | .policy = nl80211_policy, | |
7601 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 7602 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
7603 | NL80211_FLAG_NEED_RTNL, |
7604 | }, | |
5e760230 JB |
7605 | { |
7606 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
7607 | .doit = nl80211_register_beacons, | |
7608 | .policy = nl80211_policy, | |
7609 | .flags = GENL_ADMIN_PERM, | |
7610 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
7611 | NL80211_FLAG_NEED_RTNL, | |
7612 | }, | |
1d9d9213 SW |
7613 | { |
7614 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
7615 | .doit = nl80211_set_noack_map, | |
7616 | .policy = nl80211_policy, | |
7617 | .flags = GENL_ADMIN_PERM, | |
7618 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
7619 | NL80211_FLAG_NEED_RTNL, | |
7620 | }, | |
98104fde JB |
7621 | { |
7622 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
7623 | .doit = nl80211_start_p2p_device, | |
7624 | .policy = nl80211_policy, | |
7625 | .flags = GENL_ADMIN_PERM, | |
7626 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
7627 | NL80211_FLAG_NEED_RTNL, | |
7628 | }, | |
7629 | { | |
7630 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
7631 | .doit = nl80211_stop_p2p_device, | |
7632 | .policy = nl80211_policy, | |
7633 | .flags = GENL_ADMIN_PERM, | |
7634 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
7635 | NL80211_FLAG_NEED_RTNL, | |
7636 | }, | |
55682965 | 7637 | }; |
9588bbd5 | 7638 | |
6039f6d2 JM |
7639 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
7640 | .name = "mlme", | |
7641 | }; | |
55682965 JB |
7642 | |
7643 | /* multicast groups */ | |
7644 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
7645 | .name = "config", | |
7646 | }; | |
2a519311 JB |
7647 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
7648 | .name = "scan", | |
7649 | }; | |
73d54c9e LR |
7650 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
7651 | .name = "regulatory", | |
7652 | }; | |
55682965 JB |
7653 | |
7654 | /* notification functions */ | |
7655 | ||
7656 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
7657 | { | |
7658 | struct sk_buff *msg; | |
7659 | ||
fd2120ca | 7660 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
7661 | if (!msg) |
7662 | return; | |
7663 | ||
7664 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
7665 | nlmsg_free(msg); | |
7666 | return; | |
7667 | } | |
7668 | ||
463d0183 JB |
7669 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7670 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
7671 | } |
7672 | ||
362a415d JB |
7673 | static int nl80211_add_scan_req(struct sk_buff *msg, |
7674 | struct cfg80211_registered_device *rdev) | |
7675 | { | |
7676 | struct cfg80211_scan_request *req = rdev->scan_req; | |
7677 | struct nlattr *nest; | |
7678 | int i; | |
7679 | ||
667503dd JB |
7680 | ASSERT_RDEV_LOCK(rdev); |
7681 | ||
362a415d JB |
7682 | if (WARN_ON(!req)) |
7683 | return 0; | |
7684 | ||
7685 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
7686 | if (!nest) | |
7687 | goto nla_put_failure; | |
9360ffd1 DM |
7688 | for (i = 0; i < req->n_ssids; i++) { |
7689 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
7690 | goto nla_put_failure; | |
7691 | } | |
362a415d JB |
7692 | nla_nest_end(msg, nest); |
7693 | ||
7694 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
7695 | if (!nest) | |
7696 | goto nla_put_failure; | |
9360ffd1 DM |
7697 | for (i = 0; i < req->n_channels; i++) { |
7698 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
7699 | goto nla_put_failure; | |
7700 | } | |
362a415d JB |
7701 | nla_nest_end(msg, nest); |
7702 | ||
9360ffd1 DM |
7703 | if (req->ie && |
7704 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
7705 | goto nla_put_failure; | |
362a415d | 7706 | |
ed473771 SL |
7707 | if (req->flags) |
7708 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags); | |
7709 | ||
362a415d JB |
7710 | return 0; |
7711 | nla_put_failure: | |
7712 | return -ENOBUFS; | |
7713 | } | |
7714 | ||
a538e2d5 JB |
7715 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
7716 | struct cfg80211_registered_device *rdev, | |
fd014284 | 7717 | struct wireless_dev *wdev, |
15e47304 | 7718 | u32 portid, u32 seq, int flags, |
a538e2d5 | 7719 | u32 cmd) |
2a519311 JB |
7720 | { |
7721 | void *hdr; | |
7722 | ||
15e47304 | 7723 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
2a519311 JB |
7724 | if (!hdr) |
7725 | return -1; | |
7726 | ||
9360ffd1 | 7727 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
fd014284 JB |
7728 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
7729 | wdev->netdev->ifindex)) || | |
7730 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9360ffd1 | 7731 | goto nla_put_failure; |
2a519311 | 7732 | |
362a415d JB |
7733 | /* ignore errors and send incomplete event anyway */ |
7734 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
7735 | |
7736 | return genlmsg_end(msg, hdr); | |
7737 | ||
7738 | nla_put_failure: | |
7739 | genlmsg_cancel(msg, hdr); | |
7740 | return -EMSGSIZE; | |
7741 | } | |
7742 | ||
807f8a8c LC |
7743 | static int |
7744 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
7745 | struct cfg80211_registered_device *rdev, | |
7746 | struct net_device *netdev, | |
15e47304 | 7747 | u32 portid, u32 seq, int flags, u32 cmd) |
807f8a8c LC |
7748 | { |
7749 | void *hdr; | |
7750 | ||
15e47304 | 7751 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
807f8a8c LC |
7752 | if (!hdr) |
7753 | return -1; | |
7754 | ||
9360ffd1 DM |
7755 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7756 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
7757 | goto nla_put_failure; | |
807f8a8c LC |
7758 | |
7759 | return genlmsg_end(msg, hdr); | |
7760 | ||
7761 | nla_put_failure: | |
7762 | genlmsg_cancel(msg, hdr); | |
7763 | return -EMSGSIZE; | |
7764 | } | |
7765 | ||
a538e2d5 | 7766 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
fd014284 | 7767 | struct wireless_dev *wdev) |
a538e2d5 JB |
7768 | { |
7769 | struct sk_buff *msg; | |
7770 | ||
58050fce | 7771 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
a538e2d5 JB |
7772 | if (!msg) |
7773 | return; | |
7774 | ||
fd014284 | 7775 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 JB |
7776 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
7777 | nlmsg_free(msg); | |
7778 | return; | |
7779 | } | |
7780 | ||
463d0183 JB |
7781 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7782 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
7783 | } |
7784 | ||
2a519311 | 7785 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
fd014284 | 7786 | struct wireless_dev *wdev) |
2a519311 JB |
7787 | { |
7788 | struct sk_buff *msg; | |
7789 | ||
fd2120ca | 7790 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7791 | if (!msg) |
7792 | return; | |
7793 | ||
fd014284 | 7794 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 | 7795 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { |
2a519311 JB |
7796 | nlmsg_free(msg); |
7797 | return; | |
7798 | } | |
7799 | ||
463d0183 JB |
7800 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7801 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7802 | } |
7803 | ||
7804 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
fd014284 | 7805 | struct wireless_dev *wdev) |
2a519311 JB |
7806 | { |
7807 | struct sk_buff *msg; | |
7808 | ||
fd2120ca | 7809 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7810 | if (!msg) |
7811 | return; | |
7812 | ||
fd014284 | 7813 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 | 7814 | NL80211_CMD_SCAN_ABORTED) < 0) { |
2a519311 JB |
7815 | nlmsg_free(msg); |
7816 | return; | |
7817 | } | |
7818 | ||
463d0183 JB |
7819 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7820 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7821 | } |
7822 | ||
807f8a8c LC |
7823 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
7824 | struct net_device *netdev) | |
7825 | { | |
7826 | struct sk_buff *msg; | |
7827 | ||
7828 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7829 | if (!msg) | |
7830 | return; | |
7831 | ||
7832 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
7833 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
7834 | nlmsg_free(msg); | |
7835 | return; | |
7836 | } | |
7837 | ||
7838 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7839 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7840 | } | |
7841 | ||
7842 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
7843 | struct net_device *netdev, u32 cmd) | |
7844 | { | |
7845 | struct sk_buff *msg; | |
7846 | ||
58050fce | 7847 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
807f8a8c LC |
7848 | if (!msg) |
7849 | return; | |
7850 | ||
7851 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
7852 | nlmsg_free(msg); | |
7853 | return; | |
7854 | } | |
7855 | ||
7856 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7857 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7858 | } | |
7859 | ||
73d54c9e LR |
7860 | /* |
7861 | * This can happen on global regulatory changes or device specific settings | |
7862 | * based on custom world regulatory domains. | |
7863 | */ | |
7864 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
7865 | { | |
7866 | struct sk_buff *msg; | |
7867 | void *hdr; | |
7868 | ||
fd2120ca | 7869 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
7870 | if (!msg) |
7871 | return; | |
7872 | ||
7873 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
7874 | if (!hdr) { | |
7875 | nlmsg_free(msg); | |
7876 | return; | |
7877 | } | |
7878 | ||
7879 | /* Userspace can always count this one always being set */ | |
9360ffd1 DM |
7880 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
7881 | goto nla_put_failure; | |
7882 | ||
7883 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
7884 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7885 | NL80211_REGDOM_TYPE_WORLD)) | |
7886 | goto nla_put_failure; | |
7887 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
7888 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7889 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
7890 | goto nla_put_failure; | |
7891 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
7892 | request->intersect) { | |
7893 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7894 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
7895 | goto nla_put_failure; | |
7896 | } else { | |
7897 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
7898 | NL80211_REGDOM_TYPE_COUNTRY) || | |
7899 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
7900 | request->alpha2)) | |
7901 | goto nla_put_failure; | |
7902 | } | |
7903 | ||
7904 | if (wiphy_idx_valid(request->wiphy_idx) && | |
7905 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
7906 | goto nla_put_failure; | |
73d54c9e | 7907 | |
3b7b72ee | 7908 | genlmsg_end(msg, hdr); |
73d54c9e | 7909 | |
bc43b28c | 7910 | rcu_read_lock(); |
463d0183 | 7911 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
7912 | GFP_ATOMIC); |
7913 | rcu_read_unlock(); | |
73d54c9e LR |
7914 | |
7915 | return; | |
7916 | ||
7917 | nla_put_failure: | |
7918 | genlmsg_cancel(msg, hdr); | |
7919 | nlmsg_free(msg); | |
7920 | } | |
7921 | ||
6039f6d2 JM |
7922 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
7923 | struct net_device *netdev, | |
7924 | const u8 *buf, size_t len, | |
e6d6e342 | 7925 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
7926 | { |
7927 | struct sk_buff *msg; | |
7928 | void *hdr; | |
7929 | ||
e6d6e342 | 7930 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
7931 | if (!msg) |
7932 | return; | |
7933 | ||
7934 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7935 | if (!hdr) { | |
7936 | nlmsg_free(msg); | |
7937 | return; | |
7938 | } | |
7939 | ||
9360ffd1 DM |
7940 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
7941 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
7942 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
7943 | goto nla_put_failure; | |
6039f6d2 | 7944 | |
3b7b72ee | 7945 | genlmsg_end(msg, hdr); |
6039f6d2 | 7946 | |
463d0183 JB |
7947 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7948 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
7949 | return; |
7950 | ||
7951 | nla_put_failure: | |
7952 | genlmsg_cancel(msg, hdr); | |
7953 | nlmsg_free(msg); | |
7954 | } | |
7955 | ||
7956 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7957 | struct net_device *netdev, const u8 *buf, |
7958 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7959 | { |
7960 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7961 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
7962 | } |
7963 | ||
7964 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
7965 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7966 | size_t len, gfp_t gfp) |
6039f6d2 | 7967 | { |
e6d6e342 JB |
7968 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
7969 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
7970 | } |
7971 | ||
53b46b84 | 7972 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
7973 | struct net_device *netdev, const u8 *buf, |
7974 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7975 | { |
7976 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7977 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
7978 | } |
7979 | ||
53b46b84 JM |
7980 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
7981 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7982 | size_t len, gfp_t gfp) |
6039f6d2 JM |
7983 | { |
7984 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7985 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
7986 | } |
7987 | ||
cf4e594e JM |
7988 | void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, |
7989 | struct net_device *netdev, const u8 *buf, | |
7990 | size_t len, gfp_t gfp) | |
7991 | { | |
7992 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7993 | NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); | |
7994 | } | |
7995 | ||
7996 | void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, | |
7997 | struct net_device *netdev, const u8 *buf, | |
7998 | size_t len, gfp_t gfp) | |
7999 | { | |
8000 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
8001 | NL80211_CMD_UNPROT_DISASSOCIATE, gfp); | |
8002 | } | |
8003 | ||
1b06bb40 LR |
8004 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
8005 | struct net_device *netdev, int cmd, | |
e6d6e342 | 8006 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
8007 | { |
8008 | struct sk_buff *msg; | |
8009 | void *hdr; | |
8010 | ||
e6d6e342 | 8011 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
8012 | if (!msg) |
8013 | return; | |
8014 | ||
8015 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8016 | if (!hdr) { | |
8017 | nlmsg_free(msg); | |
8018 | return; | |
8019 | } | |
8020 | ||
9360ffd1 DM |
8021 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8022 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8023 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
8024 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8025 | goto nla_put_failure; | |
1965c853 | 8026 | |
3b7b72ee | 8027 | genlmsg_end(msg, hdr); |
1965c853 | 8028 | |
463d0183 JB |
8029 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8030 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
8031 | return; |
8032 | ||
8033 | nla_put_failure: | |
8034 | genlmsg_cancel(msg, hdr); | |
8035 | nlmsg_free(msg); | |
8036 | } | |
8037 | ||
8038 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8039 | struct net_device *netdev, const u8 *addr, |
8040 | gfp_t gfp) | |
1965c853 JM |
8041 | { |
8042 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 8043 | addr, gfp); |
1965c853 JM |
8044 | } |
8045 | ||
8046 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
8047 | struct net_device *netdev, const u8 *addr, |
8048 | gfp_t gfp) | |
1965c853 | 8049 | { |
e6d6e342 JB |
8050 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
8051 | addr, gfp); | |
1965c853 JM |
8052 | } |
8053 | ||
b23aa676 SO |
8054 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
8055 | struct net_device *netdev, const u8 *bssid, | |
8056 | const u8 *req_ie, size_t req_ie_len, | |
8057 | const u8 *resp_ie, size_t resp_ie_len, | |
8058 | u16 status, gfp_t gfp) | |
8059 | { | |
8060 | struct sk_buff *msg; | |
8061 | void *hdr; | |
8062 | ||
58050fce | 8063 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
8064 | if (!msg) |
8065 | return; | |
8066 | ||
8067 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
8068 | if (!hdr) { | |
8069 | nlmsg_free(msg); | |
8070 | return; | |
8071 | } | |
8072 | ||
9360ffd1 DM |
8073 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8074 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8075 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
8076 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
8077 | (req_ie && | |
8078 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8079 | (resp_ie && | |
8080 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8081 | goto nla_put_failure; | |
b23aa676 | 8082 | |
3b7b72ee | 8083 | genlmsg_end(msg, hdr); |
b23aa676 | 8084 | |
463d0183 JB |
8085 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8086 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
8087 | return; |
8088 | ||
8089 | nla_put_failure: | |
8090 | genlmsg_cancel(msg, hdr); | |
8091 | nlmsg_free(msg); | |
8092 | ||
8093 | } | |
8094 | ||
8095 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
8096 | struct net_device *netdev, const u8 *bssid, | |
8097 | const u8 *req_ie, size_t req_ie_len, | |
8098 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
8099 | { | |
8100 | struct sk_buff *msg; | |
8101 | void *hdr; | |
8102 | ||
58050fce | 8103 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
8104 | if (!msg) |
8105 | return; | |
8106 | ||
8107 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
8108 | if (!hdr) { | |
8109 | nlmsg_free(msg); | |
8110 | return; | |
8111 | } | |
8112 | ||
9360ffd1 DM |
8113 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8114 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8115 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
8116 | (req_ie && | |
8117 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
8118 | (resp_ie && | |
8119 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
8120 | goto nla_put_failure; | |
b23aa676 | 8121 | |
3b7b72ee | 8122 | genlmsg_end(msg, hdr); |
b23aa676 | 8123 | |
463d0183 JB |
8124 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8125 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
8126 | return; |
8127 | ||
8128 | nla_put_failure: | |
8129 | genlmsg_cancel(msg, hdr); | |
8130 | nlmsg_free(msg); | |
8131 | ||
8132 | } | |
8133 | ||
8134 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
8135 | struct net_device *netdev, u16 reason, | |
667503dd | 8136 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
8137 | { |
8138 | struct sk_buff *msg; | |
8139 | void *hdr; | |
8140 | ||
58050fce | 8141 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
b23aa676 SO |
8142 | if (!msg) |
8143 | return; | |
8144 | ||
8145 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
8146 | if (!hdr) { | |
8147 | nlmsg_free(msg); | |
8148 | return; | |
8149 | } | |
8150 | ||
9360ffd1 DM |
8151 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8152 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8153 | (from_ap && reason && | |
8154 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
8155 | (from_ap && | |
8156 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
8157 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
8158 | goto nla_put_failure; | |
b23aa676 | 8159 | |
3b7b72ee | 8160 | genlmsg_end(msg, hdr); |
b23aa676 | 8161 | |
463d0183 JB |
8162 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8163 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
8164 | return; |
8165 | ||
8166 | nla_put_failure: | |
8167 | genlmsg_cancel(msg, hdr); | |
8168 | nlmsg_free(msg); | |
8169 | ||
8170 | } | |
8171 | ||
04a773ad JB |
8172 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
8173 | struct net_device *netdev, const u8 *bssid, | |
8174 | gfp_t gfp) | |
8175 | { | |
8176 | struct sk_buff *msg; | |
8177 | void *hdr; | |
8178 | ||
fd2120ca | 8179 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
8180 | if (!msg) |
8181 | return; | |
8182 | ||
8183 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
8184 | if (!hdr) { | |
8185 | nlmsg_free(msg); | |
8186 | return; | |
8187 | } | |
8188 | ||
9360ffd1 DM |
8189 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8190 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8191 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8192 | goto nla_put_failure; | |
04a773ad | 8193 | |
3b7b72ee | 8194 | genlmsg_end(msg, hdr); |
04a773ad | 8195 | |
463d0183 JB |
8196 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8197 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
8198 | return; |
8199 | ||
8200 | nla_put_failure: | |
8201 | genlmsg_cancel(msg, hdr); | |
8202 | nlmsg_free(msg); | |
8203 | } | |
8204 | ||
c93b5e71 JC |
8205 | void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev, |
8206 | struct net_device *netdev, | |
8207 | const u8 *macaddr, const u8* ie, u8 ie_len, | |
8208 | gfp_t gfp) | |
8209 | { | |
8210 | struct sk_buff *msg; | |
8211 | void *hdr; | |
8212 | ||
8213 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8214 | if (!msg) | |
8215 | return; | |
8216 | ||
8217 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
8218 | if (!hdr) { | |
8219 | nlmsg_free(msg); | |
8220 | return; | |
8221 | } | |
8222 | ||
9360ffd1 DM |
8223 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8224 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8225 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) || | |
8226 | (ie_len && ie && | |
8227 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
8228 | goto nla_put_failure; | |
c93b5e71 | 8229 | |
3b7b72ee | 8230 | genlmsg_end(msg, hdr); |
c93b5e71 JC |
8231 | |
8232 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8233 | nl80211_mlme_mcgrp.id, gfp); | |
8234 | return; | |
8235 | ||
8236 | nla_put_failure: | |
8237 | genlmsg_cancel(msg, hdr); | |
8238 | nlmsg_free(msg); | |
8239 | } | |
8240 | ||
a3b8b056 JM |
8241 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
8242 | struct net_device *netdev, const u8 *addr, | |
8243 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 8244 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
8245 | { |
8246 | struct sk_buff *msg; | |
8247 | void *hdr; | |
8248 | ||
e6d6e342 | 8249 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
8250 | if (!msg) |
8251 | return; | |
8252 | ||
8253 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
8254 | if (!hdr) { | |
8255 | nlmsg_free(msg); | |
8256 | return; | |
8257 | } | |
8258 | ||
9360ffd1 DM |
8259 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8260 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8261 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
8262 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
8263 | (key_id != -1 && | |
8264 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
8265 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
8266 | goto nla_put_failure; | |
a3b8b056 | 8267 | |
3b7b72ee | 8268 | genlmsg_end(msg, hdr); |
a3b8b056 | 8269 | |
463d0183 JB |
8270 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
8271 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
8272 | return; |
8273 | ||
8274 | nla_put_failure: | |
8275 | genlmsg_cancel(msg, hdr); | |
8276 | nlmsg_free(msg); | |
8277 | } | |
8278 | ||
6bad8766 LR |
8279 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
8280 | struct ieee80211_channel *channel_before, | |
8281 | struct ieee80211_channel *channel_after) | |
8282 | { | |
8283 | struct sk_buff *msg; | |
8284 | void *hdr; | |
8285 | struct nlattr *nl_freq; | |
8286 | ||
fd2120ca | 8287 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
8288 | if (!msg) |
8289 | return; | |
8290 | ||
8291 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
8292 | if (!hdr) { | |
8293 | nlmsg_free(msg); | |
8294 | return; | |
8295 | } | |
8296 | ||
8297 | /* | |
8298 | * Since we are applying the beacon hint to a wiphy we know its | |
8299 | * wiphy_idx is valid | |
8300 | */ | |
9360ffd1 DM |
8301 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
8302 | goto nla_put_failure; | |
6bad8766 LR |
8303 | |
8304 | /* Before */ | |
8305 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
8306 | if (!nl_freq) | |
8307 | goto nla_put_failure; | |
8308 | if (nl80211_msg_put_channel(msg, channel_before)) | |
8309 | goto nla_put_failure; | |
8310 | nla_nest_end(msg, nl_freq); | |
8311 | ||
8312 | /* After */ | |
8313 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
8314 | if (!nl_freq) | |
8315 | goto nla_put_failure; | |
8316 | if (nl80211_msg_put_channel(msg, channel_after)) | |
8317 | goto nla_put_failure; | |
8318 | nla_nest_end(msg, nl_freq); | |
8319 | ||
3b7b72ee | 8320 | genlmsg_end(msg, hdr); |
6bad8766 | 8321 | |
463d0183 JB |
8322 | rcu_read_lock(); |
8323 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
8324 | GFP_ATOMIC); | |
8325 | rcu_read_unlock(); | |
6bad8766 LR |
8326 | |
8327 | return; | |
8328 | ||
8329 | nla_put_failure: | |
8330 | genlmsg_cancel(msg, hdr); | |
8331 | nlmsg_free(msg); | |
8332 | } | |
8333 | ||
9588bbd5 JM |
8334 | static void nl80211_send_remain_on_chan_event( |
8335 | int cmd, struct cfg80211_registered_device *rdev, | |
71bbc994 | 8336 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 JM |
8337 | struct ieee80211_channel *chan, |
8338 | enum nl80211_channel_type channel_type, | |
8339 | unsigned int duration, gfp_t gfp) | |
8340 | { | |
8341 | struct sk_buff *msg; | |
8342 | void *hdr; | |
8343 | ||
8344 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8345 | if (!msg) | |
8346 | return; | |
8347 | ||
8348 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
8349 | if (!hdr) { | |
8350 | nlmsg_free(msg); | |
8351 | return; | |
8352 | } | |
8353 | ||
9360ffd1 | 8354 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
8355 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8356 | wdev->netdev->ifindex)) || | |
00f53350 | 8357 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
8358 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
8359 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) || | |
8360 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) | |
8361 | goto nla_put_failure; | |
9588bbd5 | 8362 | |
9360ffd1 DM |
8363 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
8364 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
8365 | goto nla_put_failure; | |
9588bbd5 | 8366 | |
3b7b72ee | 8367 | genlmsg_end(msg, hdr); |
9588bbd5 JM |
8368 | |
8369 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8370 | nl80211_mlme_mcgrp.id, gfp); | |
8371 | return; | |
8372 | ||
8373 | nla_put_failure: | |
8374 | genlmsg_cancel(msg, hdr); | |
8375 | nlmsg_free(msg); | |
8376 | } | |
8377 | ||
8378 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
71bbc994 | 8379 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 JM |
8380 | struct ieee80211_channel *chan, |
8381 | enum nl80211_channel_type channel_type, | |
8382 | unsigned int duration, gfp_t gfp) | |
8383 | { | |
8384 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
71bbc994 | 8385 | rdev, wdev, cookie, chan, |
9588bbd5 JM |
8386 | channel_type, duration, gfp); |
8387 | } | |
8388 | ||
8389 | void nl80211_send_remain_on_channel_cancel( | |
71bbc994 JB |
8390 | struct cfg80211_registered_device *rdev, |
8391 | struct wireless_dev *wdev, | |
9588bbd5 JM |
8392 | u64 cookie, struct ieee80211_channel *chan, |
8393 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
8394 | { | |
8395 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
71bbc994 | 8396 | rdev, wdev, cookie, chan, |
9588bbd5 JM |
8397 | channel_type, 0, gfp); |
8398 | } | |
8399 | ||
98b62183 JB |
8400 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
8401 | struct net_device *dev, const u8 *mac_addr, | |
8402 | struct station_info *sinfo, gfp_t gfp) | |
8403 | { | |
8404 | struct sk_buff *msg; | |
8405 | ||
58050fce | 8406 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
98b62183 JB |
8407 | if (!msg) |
8408 | return; | |
8409 | ||
66266b3a JL |
8410 | if (nl80211_send_station(msg, 0, 0, 0, |
8411 | rdev, dev, mac_addr, sinfo) < 0) { | |
98b62183 JB |
8412 | nlmsg_free(msg); |
8413 | return; | |
8414 | } | |
8415 | ||
8416 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8417 | nl80211_mlme_mcgrp.id, gfp); | |
8418 | } | |
8419 | ||
ec15e68b JM |
8420 | void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev, |
8421 | struct net_device *dev, const u8 *mac_addr, | |
8422 | gfp_t gfp) | |
8423 | { | |
8424 | struct sk_buff *msg; | |
8425 | void *hdr; | |
8426 | ||
58050fce | 8427 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
ec15e68b JM |
8428 | if (!msg) |
8429 | return; | |
8430 | ||
8431 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
8432 | if (!hdr) { | |
8433 | nlmsg_free(msg); | |
8434 | return; | |
8435 | } | |
8436 | ||
9360ffd1 DM |
8437 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
8438 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
8439 | goto nla_put_failure; | |
ec15e68b | 8440 | |
3b7b72ee | 8441 | genlmsg_end(msg, hdr); |
ec15e68b JM |
8442 | |
8443 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8444 | nl80211_mlme_mcgrp.id, gfp); | |
8445 | return; | |
8446 | ||
8447 | nla_put_failure: | |
8448 | genlmsg_cancel(msg, hdr); | |
8449 | nlmsg_free(msg); | |
8450 | } | |
8451 | ||
ed44a951 PP |
8452 | void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev, |
8453 | struct net_device *dev, const u8 *mac_addr, | |
8454 | enum nl80211_connect_failed_reason reason, | |
8455 | gfp_t gfp) | |
8456 | { | |
8457 | struct sk_buff *msg; | |
8458 | void *hdr; | |
8459 | ||
8460 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8461 | if (!msg) | |
8462 | return; | |
8463 | ||
8464 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
8465 | if (!hdr) { | |
8466 | nlmsg_free(msg); | |
8467 | return; | |
8468 | } | |
8469 | ||
8470 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8471 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
8472 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
8473 | goto nla_put_failure; | |
8474 | ||
8475 | genlmsg_end(msg, hdr); | |
8476 | ||
8477 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8478 | nl80211_mlme_mcgrp.id, gfp); | |
8479 | return; | |
8480 | ||
8481 | nla_put_failure: | |
8482 | genlmsg_cancel(msg, hdr); | |
8483 | nlmsg_free(msg); | |
8484 | } | |
8485 | ||
b92ab5d8 JB |
8486 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
8487 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
8488 | { |
8489 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8490 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8491 | struct sk_buff *msg; | |
8492 | void *hdr; | |
8493 | int err; | |
15e47304 | 8494 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
28946da7 | 8495 | |
15e47304 | 8496 | if (!nlportid) |
28946da7 JB |
8497 | return false; |
8498 | ||
8499 | msg = nlmsg_new(100, gfp); | |
8500 | if (!msg) | |
8501 | return true; | |
8502 | ||
b92ab5d8 | 8503 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
8504 | if (!hdr) { |
8505 | nlmsg_free(msg); | |
8506 | return true; | |
8507 | } | |
8508 | ||
9360ffd1 DM |
8509 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8510 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8511 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
8512 | goto nla_put_failure; | |
28946da7 JB |
8513 | |
8514 | err = genlmsg_end(msg, hdr); | |
8515 | if (err < 0) { | |
8516 | nlmsg_free(msg); | |
8517 | return true; | |
8518 | } | |
8519 | ||
15e47304 | 8520 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
28946da7 JB |
8521 | return true; |
8522 | ||
8523 | nla_put_failure: | |
8524 | genlmsg_cancel(msg, hdr); | |
8525 | nlmsg_free(msg); | |
8526 | return true; | |
8527 | } | |
8528 | ||
b92ab5d8 JB |
8529 | bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp) |
8530 | { | |
8531 | return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
8532 | addr, gfp); | |
8533 | } | |
8534 | ||
8535 | bool nl80211_unexpected_4addr_frame(struct net_device *dev, | |
8536 | const u8 *addr, gfp_t gfp) | |
8537 | { | |
8538 | return __nl80211_unexpected_frame(dev, | |
8539 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
8540 | addr, gfp); | |
8541 | } | |
8542 | ||
2e161f78 | 8543 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
15e47304 | 8544 | struct wireless_dev *wdev, u32 nlportid, |
804483e9 JB |
8545 | int freq, int sig_dbm, |
8546 | const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 | 8547 | { |
71bbc994 | 8548 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
8549 | struct sk_buff *msg; |
8550 | void *hdr; | |
026331c4 JM |
8551 | |
8552 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8553 | if (!msg) | |
8554 | return -ENOMEM; | |
8555 | ||
2e161f78 | 8556 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
8557 | if (!hdr) { |
8558 | nlmsg_free(msg); | |
8559 | return -ENOMEM; | |
8560 | } | |
8561 | ||
9360ffd1 | 8562 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
8563 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8564 | netdev->ifindex)) || | |
9360ffd1 DM |
8565 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
8566 | (sig_dbm && | |
8567 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
8568 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
8569 | goto nla_put_failure; | |
026331c4 | 8570 | |
3b7b72ee | 8571 | genlmsg_end(msg, hdr); |
026331c4 | 8572 | |
15e47304 | 8573 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
026331c4 JM |
8574 | |
8575 | nla_put_failure: | |
8576 | genlmsg_cancel(msg, hdr); | |
8577 | nlmsg_free(msg); | |
8578 | return -ENOBUFS; | |
8579 | } | |
8580 | ||
2e161f78 | 8581 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
71bbc994 | 8582 | struct wireless_dev *wdev, u64 cookie, |
2e161f78 JB |
8583 | const u8 *buf, size_t len, bool ack, |
8584 | gfp_t gfp) | |
026331c4 | 8585 | { |
71bbc994 | 8586 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
8587 | struct sk_buff *msg; |
8588 | void *hdr; | |
8589 | ||
8590 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
8591 | if (!msg) | |
8592 | return; | |
8593 | ||
2e161f78 | 8594 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
8595 | if (!hdr) { |
8596 | nlmsg_free(msg); | |
8597 | return; | |
8598 | } | |
8599 | ||
9360ffd1 | 8600 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
8601 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
8602 | netdev->ifindex)) || | |
9360ffd1 DM |
8603 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
8604 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8605 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8606 | goto nla_put_failure; | |
026331c4 | 8607 | |
3b7b72ee | 8608 | genlmsg_end(msg, hdr); |
026331c4 JM |
8609 | |
8610 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
8611 | return; | |
8612 | ||
8613 | nla_put_failure: | |
8614 | genlmsg_cancel(msg, hdr); | |
8615 | nlmsg_free(msg); | |
8616 | } | |
8617 | ||
d6dc1a38 JO |
8618 | void |
8619 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
8620 | struct net_device *netdev, | |
8621 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
8622 | gfp_t gfp) | |
8623 | { | |
8624 | struct sk_buff *msg; | |
8625 | struct nlattr *pinfoattr; | |
8626 | void *hdr; | |
8627 | ||
58050fce | 8628 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
d6dc1a38 JO |
8629 | if (!msg) |
8630 | return; | |
8631 | ||
8632 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8633 | if (!hdr) { | |
8634 | nlmsg_free(msg); | |
8635 | return; | |
8636 | } | |
8637 | ||
9360ffd1 DM |
8638 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8639 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8640 | goto nla_put_failure; | |
d6dc1a38 JO |
8641 | |
8642 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8643 | if (!pinfoattr) | |
8644 | goto nla_put_failure; | |
8645 | ||
9360ffd1 DM |
8646 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
8647 | rssi_event)) | |
8648 | goto nla_put_failure; | |
d6dc1a38 JO |
8649 | |
8650 | nla_nest_end(msg, pinfoattr); | |
8651 | ||
3b7b72ee | 8652 | genlmsg_end(msg, hdr); |
d6dc1a38 JO |
8653 | |
8654 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8655 | nl80211_mlme_mcgrp.id, gfp); | |
8656 | return; | |
8657 | ||
8658 | nla_put_failure: | |
8659 | genlmsg_cancel(msg, hdr); | |
8660 | nlmsg_free(msg); | |
8661 | } | |
8662 | ||
e5497d76 JB |
8663 | void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
8664 | struct net_device *netdev, const u8 *bssid, | |
8665 | const u8 *replay_ctr, gfp_t gfp) | |
8666 | { | |
8667 | struct sk_buff *msg; | |
8668 | struct nlattr *rekey_attr; | |
8669 | void *hdr; | |
8670 | ||
58050fce | 8671 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
e5497d76 JB |
8672 | if (!msg) |
8673 | return; | |
8674 | ||
8675 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
8676 | if (!hdr) { | |
8677 | nlmsg_free(msg); | |
8678 | return; | |
8679 | } | |
8680 | ||
9360ffd1 DM |
8681 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8682 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8683 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
8684 | goto nla_put_failure; | |
e5497d76 JB |
8685 | |
8686 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
8687 | if (!rekey_attr) | |
8688 | goto nla_put_failure; | |
8689 | ||
9360ffd1 DM |
8690 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
8691 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
8692 | goto nla_put_failure; | |
e5497d76 JB |
8693 | |
8694 | nla_nest_end(msg, rekey_attr); | |
8695 | ||
3b7b72ee | 8696 | genlmsg_end(msg, hdr); |
e5497d76 JB |
8697 | |
8698 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8699 | nl80211_mlme_mcgrp.id, gfp); | |
8700 | return; | |
8701 | ||
8702 | nla_put_failure: | |
8703 | genlmsg_cancel(msg, hdr); | |
8704 | nlmsg_free(msg); | |
8705 | } | |
8706 | ||
c9df56b4 JM |
8707 | void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
8708 | struct net_device *netdev, int index, | |
8709 | const u8 *bssid, bool preauth, gfp_t gfp) | |
8710 | { | |
8711 | struct sk_buff *msg; | |
8712 | struct nlattr *attr; | |
8713 | void *hdr; | |
8714 | ||
58050fce | 8715 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c9df56b4 JM |
8716 | if (!msg) |
8717 | return; | |
8718 | ||
8719 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
8720 | if (!hdr) { | |
8721 | nlmsg_free(msg); | |
8722 | return; | |
8723 | } | |
8724 | ||
9360ffd1 DM |
8725 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8726 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
8727 | goto nla_put_failure; | |
c9df56b4 JM |
8728 | |
8729 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
8730 | if (!attr) | |
8731 | goto nla_put_failure; | |
8732 | ||
9360ffd1 DM |
8733 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
8734 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
8735 | (preauth && | |
8736 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
8737 | goto nla_put_failure; | |
c9df56b4 JM |
8738 | |
8739 | nla_nest_end(msg, attr); | |
8740 | ||
3b7b72ee | 8741 | genlmsg_end(msg, hdr); |
c9df56b4 JM |
8742 | |
8743 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8744 | nl80211_mlme_mcgrp.id, gfp); | |
8745 | return; | |
8746 | ||
8747 | nla_put_failure: | |
8748 | genlmsg_cancel(msg, hdr); | |
8749 | nlmsg_free(msg); | |
8750 | } | |
8751 | ||
5314526b TP |
8752 | void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, |
8753 | struct net_device *netdev, int freq, | |
8754 | enum nl80211_channel_type type, gfp_t gfp) | |
8755 | { | |
8756 | struct sk_buff *msg; | |
8757 | void *hdr; | |
8758 | ||
58050fce | 8759 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
5314526b TP |
8760 | if (!msg) |
8761 | return; | |
8762 | ||
8763 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); | |
8764 | if (!hdr) { | |
8765 | nlmsg_free(msg); | |
8766 | return; | |
8767 | } | |
8768 | ||
7eab0f64 JL |
8769 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || |
8770 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || | |
8771 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type)) | |
8772 | goto nla_put_failure; | |
5314526b TP |
8773 | |
8774 | genlmsg_end(msg, hdr); | |
8775 | ||
8776 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8777 | nl80211_mlme_mcgrp.id, gfp); | |
8778 | return; | |
8779 | ||
8780 | nla_put_failure: | |
8781 | genlmsg_cancel(msg, hdr); | |
8782 | nlmsg_free(msg); | |
8783 | } | |
8784 | ||
84f10708 TP |
8785 | void |
8786 | nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev, | |
8787 | struct net_device *netdev, const u8 *peer, | |
8788 | u32 num_packets, u32 rate, u32 intvl, gfp_t gfp) | |
8789 | { | |
8790 | struct sk_buff *msg; | |
8791 | struct nlattr *pinfoattr; | |
8792 | void *hdr; | |
8793 | ||
8794 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
8795 | if (!msg) | |
8796 | return; | |
8797 | ||
8798 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8799 | if (!hdr) { | |
8800 | nlmsg_free(msg); | |
8801 | return; | |
8802 | } | |
8803 | ||
8804 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
8805 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8806 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8807 | goto nla_put_failure; | |
8808 | ||
8809 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8810 | if (!pinfoattr) | |
8811 | goto nla_put_failure; | |
8812 | ||
8813 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
8814 | goto nla_put_failure; | |
8815 | ||
8816 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
8817 | goto nla_put_failure; | |
8818 | ||
8819 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
8820 | goto nla_put_failure; | |
8821 | ||
8822 | nla_nest_end(msg, pinfoattr); | |
8823 | ||
8824 | genlmsg_end(msg, hdr); | |
8825 | ||
8826 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8827 | nl80211_mlme_mcgrp.id, gfp); | |
8828 | return; | |
8829 | ||
8830 | nla_put_failure: | |
8831 | genlmsg_cancel(msg, hdr); | |
8832 | nlmsg_free(msg); | |
8833 | } | |
8834 | ||
c063dbf5 JB |
8835 | void |
8836 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
8837 | struct net_device *netdev, const u8 *peer, | |
8838 | u32 num_packets, gfp_t gfp) | |
8839 | { | |
8840 | struct sk_buff *msg; | |
8841 | struct nlattr *pinfoattr; | |
8842 | void *hdr; | |
8843 | ||
58050fce | 8844 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c063dbf5 JB |
8845 | if (!msg) |
8846 | return; | |
8847 | ||
8848 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
8849 | if (!hdr) { | |
8850 | nlmsg_free(msg); | |
8851 | return; | |
8852 | } | |
8853 | ||
9360ffd1 DM |
8854 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8855 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
8856 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) | |
8857 | goto nla_put_failure; | |
c063dbf5 JB |
8858 | |
8859 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
8860 | if (!pinfoattr) | |
8861 | goto nla_put_failure; | |
8862 | ||
9360ffd1 DM |
8863 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
8864 | goto nla_put_failure; | |
c063dbf5 JB |
8865 | |
8866 | nla_nest_end(msg, pinfoattr); | |
8867 | ||
3b7b72ee | 8868 | genlmsg_end(msg, hdr); |
c063dbf5 JB |
8869 | |
8870 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8871 | nl80211_mlme_mcgrp.id, gfp); | |
8872 | return; | |
8873 | ||
8874 | nla_put_failure: | |
8875 | genlmsg_cancel(msg, hdr); | |
8876 | nlmsg_free(msg); | |
8877 | } | |
8878 | ||
7f6cf311 JB |
8879 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
8880 | u64 cookie, bool acked, gfp_t gfp) | |
8881 | { | |
8882 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8883 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
8884 | struct sk_buff *msg; | |
8885 | void *hdr; | |
8886 | int err; | |
8887 | ||
58050fce | 8888 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
7f6cf311 JB |
8889 | if (!msg) |
8890 | return; | |
8891 | ||
8892 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
8893 | if (!hdr) { | |
8894 | nlmsg_free(msg); | |
8895 | return; | |
8896 | } | |
8897 | ||
9360ffd1 DM |
8898 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
8899 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
8900 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
8901 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
8902 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
8903 | goto nla_put_failure; | |
7f6cf311 JB |
8904 | |
8905 | err = genlmsg_end(msg, hdr); | |
8906 | if (err < 0) { | |
8907 | nlmsg_free(msg); | |
8908 | return; | |
8909 | } | |
8910 | ||
8911 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
8912 | nl80211_mlme_mcgrp.id, gfp); | |
8913 | return; | |
8914 | ||
8915 | nla_put_failure: | |
8916 | genlmsg_cancel(msg, hdr); | |
8917 | nlmsg_free(msg); | |
8918 | } | |
8919 | EXPORT_SYMBOL(cfg80211_probe_status); | |
8920 | ||
5e760230 JB |
8921 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
8922 | const u8 *frame, size_t len, | |
804483e9 | 8923 | int freq, int sig_dbm, gfp_t gfp) |
5e760230 JB |
8924 | { |
8925 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
8926 | struct sk_buff *msg; | |
8927 | void *hdr; | |
15e47304 | 8928 | u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid); |
5e760230 | 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 | } |