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