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Commit | Line | Data |
---|---|---|
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 | ||
79c97e97 | 49 | /* internal helper: get rdev and dev */ |
00918d33 JB |
50 | static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs, |
51 | struct cfg80211_registered_device **rdev, | |
52 | struct net_device **dev) | |
55682965 JB |
53 | { |
54 | int ifindex; | |
55 | ||
bba95fef | 56 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
57 | return -EINVAL; |
58 | ||
bba95fef | 59 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
00918d33 | 60 | *dev = dev_get_by_index(netns, ifindex); |
55682965 JB |
61 | if (!*dev) |
62 | return -ENODEV; | |
63 | ||
00918d33 | 64 | *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex); |
79c97e97 | 65 | if (IS_ERR(*rdev)) { |
55682965 | 66 | dev_put(*dev); |
79c97e97 | 67 | return PTR_ERR(*rdev); |
55682965 JB |
68 | } |
69 | ||
70 | return 0; | |
71 | } | |
72 | ||
73 | /* policy for the attributes */ | |
b54452b0 | 74 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
75 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
76 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 77 | .len = 20-1 }, |
31888487 | 78 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 79 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 80 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
81 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
82 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
83 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
84 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 85 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
86 | |
87 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
88 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
89 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 90 | |
e007b857 EP |
91 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
92 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 93 | |
b9454e83 | 94 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
95 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
96 | .len = WLAN_MAX_KEY_LEN }, | |
97 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
98 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
99 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 100 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 101 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
102 | |
103 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
104 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
105 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
106 | .len = IEEE80211_MAX_DATA_LEN }, | |
107 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
108 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
109 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
110 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
111 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
112 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
113 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 114 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 115 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 116 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
117 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
118 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
119 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 120 | |
b2e1b302 LR |
121 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
122 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
123 | ||
9f1ba906 JM |
124 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
125 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
126 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
127 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
128 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 129 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 130 | |
24bdd9f4 | 131 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 132 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 133 | |
6c739419 | 134 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
135 | |
136 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
137 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
138 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
139 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
140 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
141 | |
142 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
143 | .len = IEEE80211_MAX_SSID_LEN }, | |
144 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
145 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 146 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 147 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 148 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
149 | [NL80211_ATTR_STA_FLAGS2] = { |
150 | .len = sizeof(struct nl80211_sta_flag_update), | |
151 | }, | |
3f77316c | 152 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
153 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
154 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
155 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
156 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
157 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 158 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 159 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
160 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
161 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
162 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
163 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 164 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
165 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
166 | .len = IEEE80211_MAX_DATA_LEN }, | |
167 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 168 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 169 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 170 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 171 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
172 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
173 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 174 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
175 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
176 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 177 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 178 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 179 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 180 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 181 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 182 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 183 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 184 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 185 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
186 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
187 | .len = IEEE80211_MAX_DATA_LEN }, | |
188 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
189 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 190 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 191 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 192 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
193 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
194 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
195 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
196 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
197 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
e247bd90 | 198 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
199 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
200 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 201 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
202 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
203 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
204 | .len = NL80211_HT_CAPABILITY_LEN | |
205 | }, | |
1d9d9213 | 206 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 207 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 208 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
55682965 JB |
209 | }; |
210 | ||
e31b8213 | 211 | /* policy for the key attributes */ |
b54452b0 | 212 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 213 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
214 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
215 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 216 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
217 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
218 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 219 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
220 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
221 | }; | |
222 | ||
223 | /* policy for the key default flags */ | |
224 | static const struct nla_policy | |
225 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
226 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
227 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
228 | }; |
229 | ||
ff1b6e69 JB |
230 | /* policy for WoWLAN attributes */ |
231 | static const struct nla_policy | |
232 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
233 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
234 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
235 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
236 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
237 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
238 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
239 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
240 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
ff1b6e69 JB |
241 | }; |
242 | ||
e5497d76 JB |
243 | /* policy for GTK rekey offload attributes */ |
244 | static const struct nla_policy | |
245 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
246 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
247 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
248 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
249 | }; | |
250 | ||
a1f1c21c LC |
251 | static const struct nla_policy |
252 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
253 | [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY, | |
254 | .len = IEEE80211_MAX_SSID_LEN }, | |
255 | }; | |
256 | ||
a043897a HS |
257 | /* ifidx get helper */ |
258 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
259 | { | |
260 | int res; | |
261 | ||
262 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
263 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
264 | nl80211_policy); | |
265 | if (res) | |
266 | return res; | |
267 | ||
268 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
269 | return -EINVAL; | |
270 | ||
271 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
272 | if (!res) | |
273 | return -EINVAL; | |
274 | return res; | |
275 | } | |
276 | ||
67748893 JB |
277 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
278 | struct netlink_callback *cb, | |
279 | struct cfg80211_registered_device **rdev, | |
280 | struct net_device **dev) | |
281 | { | |
282 | int ifidx = cb->args[0]; | |
283 | int err; | |
284 | ||
285 | if (!ifidx) | |
286 | ifidx = nl80211_get_ifidx(cb); | |
287 | if (ifidx < 0) | |
288 | return ifidx; | |
289 | ||
290 | cb->args[0] = ifidx; | |
291 | ||
292 | rtnl_lock(); | |
293 | ||
294 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
295 | if (!*dev) { | |
296 | err = -ENODEV; | |
297 | goto out_rtnl; | |
298 | } | |
299 | ||
300 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
301 | if (IS_ERR(*rdev)) { |
302 | err = PTR_ERR(*rdev); | |
67748893 JB |
303 | goto out_rtnl; |
304 | } | |
305 | ||
306 | return 0; | |
307 | out_rtnl: | |
308 | rtnl_unlock(); | |
309 | return err; | |
310 | } | |
311 | ||
312 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
313 | { | |
314 | cfg80211_unlock_rdev(rdev); | |
315 | rtnl_unlock(); | |
316 | } | |
317 | ||
f4a11bb0 JB |
318 | /* IE validation */ |
319 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
320 | { | |
321 | const u8 *pos; | |
322 | int len; | |
323 | ||
324 | if (!attr) | |
325 | return true; | |
326 | ||
327 | pos = nla_data(attr); | |
328 | len = nla_len(attr); | |
329 | ||
330 | while (len) { | |
331 | u8 elemlen; | |
332 | ||
333 | if (len < 2) | |
334 | return false; | |
335 | len -= 2; | |
336 | ||
337 | elemlen = pos[1]; | |
338 | if (elemlen > len) | |
339 | return false; | |
340 | ||
341 | len -= elemlen; | |
342 | pos += 2 + elemlen; | |
343 | } | |
344 | ||
345 | return true; | |
346 | } | |
347 | ||
55682965 JB |
348 | /* message building helper */ |
349 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
350 | int flags, u8 cmd) | |
351 | { | |
352 | /* since there is no private header just add the generic one */ | |
353 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
354 | } | |
355 | ||
5dab3b8a LR |
356 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
357 | struct ieee80211_channel *chan) | |
358 | { | |
359 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
360 | chan->center_freq); | |
361 | ||
362 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
363 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
364 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
365 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
366 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
367 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
368 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
369 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
370 | ||
371 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
372 | DBM_TO_MBM(chan->max_power)); | |
373 | ||
374 | return 0; | |
375 | ||
376 | nla_put_failure: | |
377 | return -ENOBUFS; | |
378 | } | |
379 | ||
55682965 JB |
380 | /* netlink command implementations */ |
381 | ||
b9454e83 JB |
382 | struct key_parse { |
383 | struct key_params p; | |
384 | int idx; | |
e31b8213 | 385 | int type; |
b9454e83 | 386 | bool def, defmgmt; |
dbd2fd65 | 387 | bool def_uni, def_multi; |
b9454e83 JB |
388 | }; |
389 | ||
390 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
391 | { | |
392 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
393 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
394 | nl80211_key_policy); | |
395 | if (err) | |
396 | return err; | |
397 | ||
398 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
399 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
400 | ||
dbd2fd65 JB |
401 | if (k->def) { |
402 | k->def_uni = true; | |
403 | k->def_multi = true; | |
404 | } | |
405 | if (k->defmgmt) | |
406 | k->def_multi = true; | |
407 | ||
b9454e83 JB |
408 | if (tb[NL80211_KEY_IDX]) |
409 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
410 | ||
411 | if (tb[NL80211_KEY_DATA]) { | |
412 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
413 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
414 | } | |
415 | ||
416 | if (tb[NL80211_KEY_SEQ]) { | |
417 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
418 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
419 | } | |
420 | ||
421 | if (tb[NL80211_KEY_CIPHER]) | |
422 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
423 | ||
e31b8213 JB |
424 | if (tb[NL80211_KEY_TYPE]) { |
425 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
426 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
427 | return -EINVAL; | |
428 | } | |
429 | ||
dbd2fd65 JB |
430 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
431 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
432 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
433 | tb[NL80211_KEY_DEFAULT_TYPES], | |
434 | nl80211_key_default_policy); | |
dbd2fd65 JB |
435 | if (err) |
436 | return err; | |
437 | ||
438 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
439 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
440 | } | |
441 | ||
b9454e83 JB |
442 | return 0; |
443 | } | |
444 | ||
445 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
446 | { | |
447 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
448 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
449 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
450 | } | |
451 | ||
452 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
453 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
454 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
455 | } | |
456 | ||
457 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
458 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
459 | ||
460 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
461 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
462 | ||
463 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
464 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
465 | ||
dbd2fd65 JB |
466 | if (k->def) { |
467 | k->def_uni = true; | |
468 | k->def_multi = true; | |
469 | } | |
470 | if (k->defmgmt) | |
471 | k->def_multi = true; | |
472 | ||
e31b8213 JB |
473 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
474 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
475 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
476 | return -EINVAL; | |
477 | } | |
478 | ||
dbd2fd65 JB |
479 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
480 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
481 | int err = nla_parse_nested( | |
482 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
483 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
484 | nl80211_key_default_policy); | |
485 | if (err) | |
486 | return err; | |
487 | ||
488 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
489 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
490 | } | |
491 | ||
b9454e83 JB |
492 | return 0; |
493 | } | |
494 | ||
495 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
496 | { | |
497 | int err; | |
498 | ||
499 | memset(k, 0, sizeof(*k)); | |
500 | k->idx = -1; | |
e31b8213 | 501 | k->type = -1; |
b9454e83 JB |
502 | |
503 | if (info->attrs[NL80211_ATTR_KEY]) | |
504 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
505 | else | |
506 | err = nl80211_parse_key_old(info, k); | |
507 | ||
508 | if (err) | |
509 | return err; | |
510 | ||
511 | if (k->def && k->defmgmt) | |
512 | return -EINVAL; | |
513 | ||
dbd2fd65 JB |
514 | if (k->defmgmt) { |
515 | if (k->def_uni || !k->def_multi) | |
516 | return -EINVAL; | |
517 | } | |
518 | ||
b9454e83 JB |
519 | if (k->idx != -1) { |
520 | if (k->defmgmt) { | |
521 | if (k->idx < 4 || k->idx > 5) | |
522 | return -EINVAL; | |
523 | } else if (k->def) { | |
524 | if (k->idx < 0 || k->idx > 3) | |
525 | return -EINVAL; | |
526 | } else { | |
527 | if (k->idx < 0 || k->idx > 5) | |
528 | return -EINVAL; | |
529 | } | |
530 | } | |
531 | ||
532 | return 0; | |
533 | } | |
534 | ||
fffd0934 JB |
535 | static struct cfg80211_cached_keys * |
536 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
537 | struct nlattr *keys) | |
538 | { | |
539 | struct key_parse parse; | |
540 | struct nlattr *key; | |
541 | struct cfg80211_cached_keys *result; | |
542 | int rem, err, def = 0; | |
543 | ||
544 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
545 | if (!result) | |
546 | return ERR_PTR(-ENOMEM); | |
547 | ||
548 | result->def = -1; | |
549 | result->defmgmt = -1; | |
550 | ||
551 | nla_for_each_nested(key, keys, rem) { | |
552 | memset(&parse, 0, sizeof(parse)); | |
553 | parse.idx = -1; | |
554 | ||
555 | err = nl80211_parse_key_new(key, &parse); | |
556 | if (err) | |
557 | goto error; | |
558 | err = -EINVAL; | |
559 | if (!parse.p.key) | |
560 | goto error; | |
561 | if (parse.idx < 0 || parse.idx > 4) | |
562 | goto error; | |
563 | if (parse.def) { | |
564 | if (def) | |
565 | goto error; | |
566 | def = 1; | |
567 | result->def = parse.idx; | |
dbd2fd65 JB |
568 | if (!parse.def_uni || !parse.def_multi) |
569 | goto error; | |
fffd0934 JB |
570 | } else if (parse.defmgmt) |
571 | goto error; | |
572 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 573 | parse.idx, false, NULL); |
fffd0934 JB |
574 | if (err) |
575 | goto error; | |
576 | result->params[parse.idx].cipher = parse.p.cipher; | |
577 | result->params[parse.idx].key_len = parse.p.key_len; | |
578 | result->params[parse.idx].key = result->data[parse.idx]; | |
579 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
580 | } | |
581 | ||
582 | return result; | |
583 | error: | |
584 | kfree(result); | |
585 | return ERR_PTR(err); | |
586 | } | |
587 | ||
588 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
589 | { | |
590 | ASSERT_WDEV_LOCK(wdev); | |
591 | ||
fffd0934 JB |
592 | switch (wdev->iftype) { |
593 | case NL80211_IFTYPE_AP: | |
594 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 595 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 596 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
597 | break; |
598 | case NL80211_IFTYPE_ADHOC: | |
599 | if (!wdev->current_bss) | |
600 | return -ENOLINK; | |
601 | break; | |
602 | case NL80211_IFTYPE_STATION: | |
074ac8df | 603 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
604 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
605 | return -ENOLINK; | |
606 | break; | |
607 | default: | |
608 | return -EINVAL; | |
609 | } | |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
7527a782 JB |
614 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
615 | { | |
616 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
617 | int i; | |
618 | ||
619 | if (!nl_modes) | |
620 | goto nla_put_failure; | |
621 | ||
622 | i = 0; | |
623 | while (ifmodes) { | |
624 | if (ifmodes & 1) | |
625 | NLA_PUT_FLAG(msg, i); | |
626 | ifmodes >>= 1; | |
627 | i++; | |
628 | } | |
629 | ||
630 | nla_nest_end(msg, nl_modes); | |
631 | return 0; | |
632 | ||
633 | nla_put_failure: | |
634 | return -ENOBUFS; | |
635 | } | |
636 | ||
637 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
638 | struct sk_buff *msg) | |
639 | { | |
640 | struct nlattr *nl_combis; | |
641 | int i, j; | |
642 | ||
643 | nl_combis = nla_nest_start(msg, | |
644 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
645 | if (!nl_combis) | |
646 | goto nla_put_failure; | |
647 | ||
648 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
649 | const struct ieee80211_iface_combination *c; | |
650 | struct nlattr *nl_combi, *nl_limits; | |
651 | ||
652 | c = &wiphy->iface_combinations[i]; | |
653 | ||
654 | nl_combi = nla_nest_start(msg, i + 1); | |
655 | if (!nl_combi) | |
656 | goto nla_put_failure; | |
657 | ||
658 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
659 | if (!nl_limits) | |
660 | goto nla_put_failure; | |
661 | ||
662 | for (j = 0; j < c->n_limits; j++) { | |
663 | struct nlattr *nl_limit; | |
664 | ||
665 | nl_limit = nla_nest_start(msg, j + 1); | |
666 | if (!nl_limit) | |
667 | goto nla_put_failure; | |
668 | NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX, | |
669 | c->limits[j].max); | |
670 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, | |
671 | c->limits[j].types)) | |
672 | goto nla_put_failure; | |
673 | nla_nest_end(msg, nl_limit); | |
674 | } | |
675 | ||
676 | nla_nest_end(msg, nl_limits); | |
677 | ||
678 | if (c->beacon_int_infra_match) | |
679 | NLA_PUT_FLAG(msg, | |
680 | NL80211_IFACE_COMB_STA_AP_BI_MATCH); | |
681 | NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
682 | c->num_different_channels); | |
683 | NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM, | |
684 | c->max_interfaces); | |
685 | ||
686 | nla_nest_end(msg, nl_combi); | |
687 | } | |
688 | ||
689 | nla_nest_end(msg, nl_combis); | |
690 | ||
691 | return 0; | |
692 | nla_put_failure: | |
693 | return -ENOBUFS; | |
694 | } | |
695 | ||
55682965 JB |
696 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
697 | struct cfg80211_registered_device *dev) | |
698 | { | |
699 | void *hdr; | |
ee688b00 JB |
700 | struct nlattr *nl_bands, *nl_band; |
701 | struct nlattr *nl_freqs, *nl_freq; | |
702 | struct nlattr *nl_rates, *nl_rate; | |
8fdc621d | 703 | struct nlattr *nl_cmds; |
ee688b00 JB |
704 | enum ieee80211_band band; |
705 | struct ieee80211_channel *chan; | |
706 | struct ieee80211_rate *rate; | |
707 | int i; | |
2e161f78 JB |
708 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
709 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
710 | |
711 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
712 | if (!hdr) | |
713 | return -1; | |
714 | ||
b5850a7a | 715 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 716 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 717 | |
f5ea9120 JB |
718 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
719 | cfg80211_rdev_list_generation); | |
720 | ||
b9a5f8ca JM |
721 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
722 | dev->wiphy.retry_short); | |
723 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
724 | dev->wiphy.retry_long); | |
725 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
726 | dev->wiphy.frag_threshold); | |
727 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
728 | dev->wiphy.rts_threshold); | |
81077e82 LT |
729 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
730 | dev->wiphy.coverage_class); | |
2a519311 JB |
731 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
732 | dev->wiphy.max_scan_ssids); | |
93b6aa69 LC |
733 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, |
734 | dev->wiphy.max_sched_scan_ssids); | |
18a83659 JB |
735 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
736 | dev->wiphy.max_scan_ie_len); | |
5a865bad LC |
737 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, |
738 | dev->wiphy.max_sched_scan_ie_len); | |
a1f1c21c LC |
739 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS, |
740 | dev->wiphy.max_match_sets); | |
ee688b00 | 741 | |
e31b8213 JB |
742 | if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) |
743 | NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN); | |
15d5dda6 JC |
744 | if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) |
745 | NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH); | |
cedb5412 EP |
746 | if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) |
747 | NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD); | |
f4b34b55 VN |
748 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) |
749 | NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT); | |
109086ce AN |
750 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) |
751 | NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT); | |
752 | if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) | |
753 | NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP); | |
f4b34b55 | 754 | |
25e47c18 JB |
755 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
756 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
757 | dev->wiphy.cipher_suites); | |
758 | ||
67fbb16b SO |
759 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
760 | dev->wiphy.max_num_pmkids); | |
761 | ||
c0692b8f JB |
762 | if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) |
763 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); | |
764 | ||
39fd5de4 BR |
765 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, |
766 | dev->wiphy.available_antennas_tx); | |
767 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, | |
768 | dev->wiphy.available_antennas_rx); | |
769 | ||
87bbbe22 AN |
770 | if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) |
771 | NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, | |
772 | dev->wiphy.probe_resp_offload); | |
773 | ||
7f531e03 BR |
774 | if ((dev->wiphy.available_antennas_tx || |
775 | dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) { | |
afe0cbf8 BR |
776 | u32 tx_ant = 0, rx_ant = 0; |
777 | int res; | |
778 | res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant); | |
779 | if (!res) { | |
780 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant); | |
781 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant); | |
782 | } | |
783 | } | |
784 | ||
7527a782 JB |
785 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, |
786 | dev->wiphy.interface_modes)) | |
f59ac048 LR |
787 | goto nla_put_failure; |
788 | ||
ee688b00 JB |
789 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
790 | if (!nl_bands) | |
791 | goto nla_put_failure; | |
792 | ||
793 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
794 | if (!dev->wiphy.bands[band]) | |
795 | continue; | |
796 | ||
797 | nl_band = nla_nest_start(msg, band); | |
798 | if (!nl_band) | |
799 | goto nla_put_failure; | |
800 | ||
d51626df JB |
801 | /* add HT info */ |
802 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
803 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
804 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
805 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
806 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
807 | dev->wiphy.bands[band]->ht_cap.cap); | |
808 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
809 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
810 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
811 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
812 | } | |
813 | ||
ee688b00 JB |
814 | /* add frequencies */ |
815 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
816 | if (!nl_freqs) | |
817 | goto nla_put_failure; | |
818 | ||
819 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
820 | nl_freq = nla_nest_start(msg, i); | |
821 | if (!nl_freq) | |
822 | goto nla_put_failure; | |
823 | ||
824 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
825 | |
826 | if (nl80211_msg_put_channel(msg, chan)) | |
827 | goto nla_put_failure; | |
e2f367f2 | 828 | |
ee688b00 JB |
829 | nla_nest_end(msg, nl_freq); |
830 | } | |
831 | ||
832 | nla_nest_end(msg, nl_freqs); | |
833 | ||
834 | /* add bitrates */ | |
835 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
836 | if (!nl_rates) | |
837 | goto nla_put_failure; | |
838 | ||
839 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
840 | nl_rate = nla_nest_start(msg, i); | |
841 | if (!nl_rate) | |
842 | goto nla_put_failure; | |
843 | ||
844 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
845 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
846 | rate->bitrate); | |
847 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
848 | NLA_PUT_FLAG(msg, | |
849 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
850 | ||
851 | nla_nest_end(msg, nl_rate); | |
852 | } | |
853 | ||
854 | nla_nest_end(msg, nl_rates); | |
855 | ||
856 | nla_nest_end(msg, nl_band); | |
857 | } | |
858 | nla_nest_end(msg, nl_bands); | |
859 | ||
8fdc621d JB |
860 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
861 | if (!nl_cmds) | |
862 | goto nla_put_failure; | |
863 | ||
864 | i = 0; | |
865 | #define CMD(op, n) \ | |
866 | do { \ | |
867 | if (dev->ops->op) { \ | |
868 | i++; \ | |
869 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
870 | } \ | |
871 | } while (0) | |
872 | ||
873 | CMD(add_virtual_intf, NEW_INTERFACE); | |
874 | CMD(change_virtual_intf, SET_INTERFACE); | |
875 | CMD(add_key, NEW_KEY); | |
8860020e | 876 | CMD(start_ap, START_AP); |
8fdc621d JB |
877 | CMD(add_station, NEW_STATION); |
878 | CMD(add_mpath, NEW_MPATH); | |
24bdd9f4 | 879 | CMD(update_mesh_config, SET_MESH_CONFIG); |
8fdc621d | 880 | CMD(change_bss, SET_BSS); |
636a5d36 JM |
881 | CMD(auth, AUTHENTICATE); |
882 | CMD(assoc, ASSOCIATE); | |
883 | CMD(deauth, DEAUTHENTICATE); | |
884 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 885 | CMD(join_ibss, JOIN_IBSS); |
29cbe68c | 886 | CMD(join_mesh, JOIN_MESH); |
67fbb16b SO |
887 | CMD(set_pmksa, SET_PMKSA); |
888 | CMD(del_pmksa, DEL_PMKSA); | |
889 | CMD(flush_pmksa, FLUSH_PMKSA); | |
7c4ef712 JB |
890 | if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
891 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); | |
13ae75b1 | 892 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 893 | CMD(mgmt_tx, FRAME); |
f7ca38df | 894 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
5be83de5 | 895 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
896 | i++; |
897 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
898 | } | |
f444de05 | 899 | CMD(set_channel, SET_CHANNEL); |
e8347eba | 900 | CMD(set_wds_peer, SET_WDS_PEER); |
109086ce AN |
901 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
902 | CMD(tdls_mgmt, TDLS_MGMT); | |
903 | CMD(tdls_oper, TDLS_OPER); | |
904 | } | |
807f8a8c LC |
905 | if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
906 | CMD(sched_scan_start, START_SCHED_SCAN); | |
7f6cf311 | 907 | CMD(probe_client, PROBE_CLIENT); |
1d9d9213 | 908 | CMD(set_noack_map, SET_NOACK_MAP); |
5e760230 JB |
909 | if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
910 | i++; | |
911 | NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS); | |
912 | } | |
8fdc621d | 913 | |
4745fc09 KV |
914 | #ifdef CONFIG_NL80211_TESTMODE |
915 | CMD(testmode_cmd, TESTMODE); | |
916 | #endif | |
917 | ||
8fdc621d | 918 | #undef CMD |
b23aa676 | 919 | |
6829c878 | 920 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
921 | i++; |
922 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
923 | } | |
924 | ||
6829c878 | 925 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
926 | i++; |
927 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
928 | } | |
929 | ||
8fdc621d JB |
930 | nla_nest_end(msg, nl_cmds); |
931 | ||
7c4ef712 JB |
932 | if (dev->ops->remain_on_channel && |
933 | dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) | |
a293911d JB |
934 | NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, |
935 | dev->wiphy.max_remain_on_channel_duration); | |
936 | ||
7c4ef712 | 937 | if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) |
f7ca38df JB |
938 | NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); |
939 | ||
2e161f78 JB |
940 | if (mgmt_stypes) { |
941 | u16 stypes; | |
942 | struct nlattr *nl_ftypes, *nl_ifs; | |
943 | enum nl80211_iftype ift; | |
944 | ||
945 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
946 | if (!nl_ifs) | |
947 | goto nla_put_failure; | |
948 | ||
949 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
950 | nl_ftypes = nla_nest_start(msg, ift); | |
951 | if (!nl_ftypes) | |
952 | goto nla_put_failure; | |
953 | i = 0; | |
954 | stypes = mgmt_stypes[ift].tx; | |
955 | while (stypes) { | |
956 | if (stypes & 1) | |
957 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
958 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
959 | stypes >>= 1; | |
960 | i++; | |
961 | } | |
962 | nla_nest_end(msg, nl_ftypes); | |
963 | } | |
964 | ||
74b70a4e JB |
965 | nla_nest_end(msg, nl_ifs); |
966 | ||
2e161f78 JB |
967 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
968 | if (!nl_ifs) | |
969 | goto nla_put_failure; | |
970 | ||
971 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
972 | nl_ftypes = nla_nest_start(msg, ift); | |
973 | if (!nl_ftypes) | |
974 | goto nla_put_failure; | |
975 | i = 0; | |
976 | stypes = mgmt_stypes[ift].rx; | |
977 | while (stypes) { | |
978 | if (stypes & 1) | |
979 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
980 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
981 | stypes >>= 1; | |
982 | i++; | |
983 | } | |
984 | nla_nest_end(msg, nl_ftypes); | |
985 | } | |
986 | nla_nest_end(msg, nl_ifs); | |
987 | } | |
988 | ||
ff1b6e69 JB |
989 | if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) { |
990 | struct nlattr *nl_wowlan; | |
991 | ||
992 | nl_wowlan = nla_nest_start(msg, | |
993 | NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); | |
994 | if (!nl_wowlan) | |
995 | goto nla_put_failure; | |
996 | ||
997 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) | |
998 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); | |
999 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) | |
1000 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); | |
1001 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) | |
1002 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); | |
77dbbb13 JB |
1003 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) |
1004 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED); | |
1005 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) | |
1006 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE); | |
1007 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) | |
1008 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST); | |
1009 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) | |
1010 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE); | |
1011 | if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) | |
1012 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE); | |
ff1b6e69 JB |
1013 | if (dev->wiphy.wowlan.n_patterns) { |
1014 | struct nl80211_wowlan_pattern_support pat = { | |
1015 | .max_patterns = dev->wiphy.wowlan.n_patterns, | |
1016 | .min_pattern_len = | |
1017 | dev->wiphy.wowlan.pattern_min_len, | |
1018 | .max_pattern_len = | |
1019 | dev->wiphy.wowlan.pattern_max_len, | |
1020 | }; | |
1021 | NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
1022 | sizeof(pat), &pat); | |
1023 | } | |
1024 | ||
1025 | nla_nest_end(msg, nl_wowlan); | |
1026 | } | |
1027 | ||
7527a782 JB |
1028 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, |
1029 | dev->wiphy.software_iftypes)) | |
1030 | goto nla_put_failure; | |
1031 | ||
1032 | if (nl80211_put_iface_combinations(&dev->wiphy, msg)) | |
1033 | goto nla_put_failure; | |
1034 | ||
562a7480 JB |
1035 | if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) |
1036 | NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME, | |
1037 | dev->wiphy.ap_sme_capa); | |
1038 | ||
1f074bd8 JB |
1039 | NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features); |
1040 | ||
7e7c8926 BG |
1041 | if (dev->wiphy.ht_capa_mod_mask) |
1042 | NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, | |
1043 | sizeof(*dev->wiphy.ht_capa_mod_mask), | |
1044 | dev->wiphy.ht_capa_mod_mask); | |
1045 | ||
55682965 JB |
1046 | return genlmsg_end(msg, hdr); |
1047 | ||
1048 | nla_put_failure: | |
bc3ed28c TG |
1049 | genlmsg_cancel(msg, hdr); |
1050 | return -EMSGSIZE; | |
55682965 JB |
1051 | } |
1052 | ||
1053 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
1054 | { | |
1055 | int idx = 0; | |
1056 | int start = cb->args[0]; | |
1057 | struct cfg80211_registered_device *dev; | |
1058 | ||
a1794390 | 1059 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 1060 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
1061 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
1062 | continue; | |
b4637271 | 1063 | if (++idx <= start) |
55682965 JB |
1064 | continue; |
1065 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
1066 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
1067 | dev) < 0) { |
1068 | idx--; | |
55682965 | 1069 | break; |
b4637271 | 1070 | } |
55682965 | 1071 | } |
a1794390 | 1072 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1073 | |
1074 | cb->args[0] = idx; | |
1075 | ||
1076 | return skb->len; | |
1077 | } | |
1078 | ||
1079 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
1080 | { | |
1081 | struct sk_buff *msg; | |
4c476991 | 1082 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 1083 | |
fd2120ca | 1084 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1085 | if (!msg) |
4c476991 | 1086 | return -ENOMEM; |
55682965 | 1087 | |
4c476991 JB |
1088 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { |
1089 | nlmsg_free(msg); | |
1090 | return -ENOBUFS; | |
1091 | } | |
55682965 | 1092 | |
134e6375 | 1093 | return genlmsg_reply(msg, info); |
55682965 JB |
1094 | } |
1095 | ||
31888487 JM |
1096 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1097 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1098 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1099 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1100 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1101 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1102 | }; | |
1103 | ||
1104 | static int parse_txq_params(struct nlattr *tb[], | |
1105 | struct ieee80211_txq_params *txq_params) | |
1106 | { | |
1107 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
1108 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
1109 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1110 | return -EINVAL; | |
1111 | ||
1112 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
1113 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
1114 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1115 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1116 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1117 | ||
1118 | return 0; | |
1119 | } | |
1120 | ||
f444de05 JB |
1121 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1122 | { | |
1123 | /* | |
1124 | * You can only set the channel explicitly for AP, mesh | |
1125 | * and WDS type interfaces; all others have their channel | |
1126 | * managed via their respective "establish a connection" | |
1127 | * command (connect, join, ...) | |
1128 | * | |
1129 | * Monitors are special as they are normally slaved to | |
1130 | * whatever else is going on, so they behave as though | |
1131 | * you tried setting the wiphy channel itself. | |
1132 | */ | |
1133 | return !wdev || | |
1134 | wdev->iftype == NL80211_IFTYPE_AP || | |
1135 | wdev->iftype == NL80211_IFTYPE_WDS || | |
1136 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
074ac8df JB |
1137 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1138 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1139 | } |
1140 | ||
1141 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
1142 | struct wireless_dev *wdev, | |
1143 | struct genl_info *info) | |
1144 | { | |
1145 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
1146 | u32 freq; | |
1147 | int result; | |
1148 | ||
1149 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1150 | return -EINVAL; | |
1151 | ||
1152 | if (!nl80211_can_set_dev_channel(wdev)) | |
1153 | return -EOPNOTSUPP; | |
1154 | ||
1155 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
1156 | channel_type = nla_get_u32(info->attrs[ | |
1157 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1158 | if (channel_type != NL80211_CHAN_NO_HT && | |
1159 | channel_type != NL80211_CHAN_HT20 && | |
1160 | channel_type != NL80211_CHAN_HT40PLUS && | |
1161 | channel_type != NL80211_CHAN_HT40MINUS) | |
1162 | return -EINVAL; | |
1163 | } | |
1164 | ||
1165 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1166 | ||
1167 | mutex_lock(&rdev->devlist_mtx); | |
1168 | if (wdev) { | |
1169 | wdev_lock(wdev); | |
1170 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
1171 | wdev_unlock(wdev); | |
1172 | } else { | |
1173 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
1174 | } | |
1175 | mutex_unlock(&rdev->devlist_mtx); | |
1176 | ||
1177 | return result; | |
1178 | } | |
1179 | ||
1180 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1181 | { | |
4c476991 JB |
1182 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1183 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 1184 | |
4c476991 | 1185 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
1186 | } |
1187 | ||
e8347eba BJ |
1188 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1189 | { | |
43b19952 JB |
1190 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1191 | struct net_device *dev = info->user_ptr[1]; | |
1192 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 1193 | const u8 *bssid; |
e8347eba BJ |
1194 | |
1195 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1196 | return -EINVAL; | |
1197 | ||
43b19952 JB |
1198 | if (netif_running(dev)) |
1199 | return -EBUSY; | |
e8347eba | 1200 | |
43b19952 JB |
1201 | if (!rdev->ops->set_wds_peer) |
1202 | return -EOPNOTSUPP; | |
e8347eba | 1203 | |
43b19952 JB |
1204 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1205 | return -EOPNOTSUPP; | |
e8347eba BJ |
1206 | |
1207 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
43b19952 | 1208 | return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); |
e8347eba BJ |
1209 | } |
1210 | ||
1211 | ||
55682965 JB |
1212 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1213 | { | |
1214 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
1215 | struct net_device *netdev = NULL; |
1216 | struct wireless_dev *wdev; | |
a1e567c8 | 1217 | int result = 0, rem_txq_params = 0; |
31888487 | 1218 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
1219 | u32 changed; |
1220 | u8 retry_short = 0, retry_long = 0; | |
1221 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 1222 | u8 coverage_class = 0; |
55682965 | 1223 | |
f444de05 JB |
1224 | /* |
1225 | * Try to find the wiphy and netdev. Normally this | |
1226 | * function shouldn't need the netdev, but this is | |
1227 | * done for backward compatibility -- previously | |
1228 | * setting the channel was done per wiphy, but now | |
1229 | * it is per netdev. Previous userland like hostapd | |
1230 | * also passed a netdev to set_wiphy, so that it is | |
1231 | * possible to let that go to the right netdev! | |
1232 | */ | |
4bbf4d56 JB |
1233 | mutex_lock(&cfg80211_mutex); |
1234 | ||
f444de05 JB |
1235 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
1236 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
1237 | ||
1238 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
1239 | if (netdev && netdev->ieee80211_ptr) { | |
1240 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
1241 | mutex_lock(&rdev->mtx); | |
1242 | } else | |
1243 | netdev = NULL; | |
4bbf4d56 JB |
1244 | } |
1245 | ||
f444de05 JB |
1246 | if (!netdev) { |
1247 | rdev = __cfg80211_rdev_from_info(info); | |
1248 | if (IS_ERR(rdev)) { | |
1249 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 1250 | return PTR_ERR(rdev); |
f444de05 JB |
1251 | } |
1252 | wdev = NULL; | |
1253 | netdev = NULL; | |
1254 | result = 0; | |
1255 | ||
1256 | mutex_lock(&rdev->mtx); | |
1257 | } else if (netif_running(netdev) && | |
1258 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
1259 | wdev = netdev->ieee80211_ptr; | |
1260 | else | |
1261 | wdev = NULL; | |
1262 | ||
1263 | /* | |
1264 | * end workaround code, by now the rdev is available | |
1265 | * and locked, and wdev may or may not be NULL. | |
1266 | */ | |
4bbf4d56 JB |
1267 | |
1268 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
1269 | result = cfg80211_dev_rename( |
1270 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
1271 | |
1272 | mutex_unlock(&cfg80211_mutex); | |
1273 | ||
1274 | if (result) | |
1275 | goto bad_res; | |
31888487 JM |
1276 | |
1277 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
1278 | struct ieee80211_txq_params txq_params; | |
1279 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
1280 | ||
1281 | if (!rdev->ops->set_txq_params) { | |
1282 | result = -EOPNOTSUPP; | |
1283 | goto bad_res; | |
1284 | } | |
1285 | ||
f70f01c2 EP |
1286 | if (!netdev) { |
1287 | result = -EINVAL; | |
1288 | goto bad_res; | |
1289 | } | |
1290 | ||
133a3ff2 JB |
1291 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
1292 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
1293 | result = -EINVAL; | |
1294 | goto bad_res; | |
1295 | } | |
1296 | ||
31888487 JM |
1297 | nla_for_each_nested(nl_txq_params, |
1298 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1299 | rem_txq_params) { | |
1300 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1301 | nla_data(nl_txq_params), | |
1302 | nla_len(nl_txq_params), | |
1303 | txq_params_policy); | |
1304 | result = parse_txq_params(tb, &txq_params); | |
1305 | if (result) | |
1306 | goto bad_res; | |
1307 | ||
1308 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
f70f01c2 | 1309 | netdev, |
31888487 JM |
1310 | &txq_params); |
1311 | if (result) | |
1312 | goto bad_res; | |
1313 | } | |
1314 | } | |
55682965 | 1315 | |
72bdcf34 | 1316 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 1317 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
1318 | if (result) |
1319 | goto bad_res; | |
1320 | } | |
1321 | ||
98d2ff8b JO |
1322 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
1323 | enum nl80211_tx_power_setting type; | |
1324 | int idx, mbm = 0; | |
1325 | ||
1326 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 1327 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1328 | goto bad_res; |
1329 | } | |
1330 | ||
1331 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1332 | type = nla_get_u32(info->attrs[idx]); | |
1333 | ||
1334 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1335 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1336 | result = -EINVAL; | |
1337 | goto bad_res; | |
1338 | } | |
1339 | ||
1340 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1341 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1342 | mbm = nla_get_u32(info->attrs[idx]); | |
1343 | } | |
1344 | ||
1345 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
1346 | if (result) | |
1347 | goto bad_res; | |
1348 | } | |
1349 | ||
afe0cbf8 BR |
1350 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1351 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1352 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
1353 | if ((!rdev->wiphy.available_antennas_tx && |
1354 | !rdev->wiphy.available_antennas_rx) || | |
1355 | !rdev->ops->set_antenna) { | |
afe0cbf8 BR |
1356 | result = -EOPNOTSUPP; |
1357 | goto bad_res; | |
1358 | } | |
1359 | ||
1360 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1361 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1362 | ||
a7ffac95 | 1363 | /* reject antenna configurations which don't match the |
7f531e03 BR |
1364 | * available antenna masks, except for the "all" mask */ |
1365 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
1366 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) { | |
a7ffac95 BR |
1367 | result = -EINVAL; |
1368 | goto bad_res; | |
1369 | } | |
1370 | ||
7f531e03 BR |
1371 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
1372 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 1373 | |
afe0cbf8 BR |
1374 | result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant); |
1375 | if (result) | |
1376 | goto bad_res; | |
1377 | } | |
1378 | ||
b9a5f8ca JM |
1379 | changed = 0; |
1380 | ||
1381 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1382 | retry_short = nla_get_u8( | |
1383 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1384 | if (retry_short == 0) { | |
1385 | result = -EINVAL; | |
1386 | goto bad_res; | |
1387 | } | |
1388 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1389 | } | |
1390 | ||
1391 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1392 | retry_long = nla_get_u8( | |
1393 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1394 | if (retry_long == 0) { | |
1395 | result = -EINVAL; | |
1396 | goto bad_res; | |
1397 | } | |
1398 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1399 | } | |
1400 | ||
1401 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1402 | frag_threshold = nla_get_u32( | |
1403 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1404 | if (frag_threshold < 256) { | |
1405 | result = -EINVAL; | |
1406 | goto bad_res; | |
1407 | } | |
1408 | if (frag_threshold != (u32) -1) { | |
1409 | /* | |
1410 | * Fragments (apart from the last one) are required to | |
1411 | * have even length. Make the fragmentation code | |
1412 | * simpler by stripping LSB should someone try to use | |
1413 | * odd threshold value. | |
1414 | */ | |
1415 | frag_threshold &= ~0x1; | |
1416 | } | |
1417 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1418 | } | |
1419 | ||
1420 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1421 | rts_threshold = nla_get_u32( | |
1422 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1423 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1424 | } | |
1425 | ||
81077e82 LT |
1426 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1427 | coverage_class = nla_get_u8( | |
1428 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1429 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1430 | } | |
1431 | ||
b9a5f8ca JM |
1432 | if (changed) { |
1433 | u8 old_retry_short, old_retry_long; | |
1434 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1435 | u8 old_coverage_class; |
b9a5f8ca JM |
1436 | |
1437 | if (!rdev->ops->set_wiphy_params) { | |
1438 | result = -EOPNOTSUPP; | |
1439 | goto bad_res; | |
1440 | } | |
1441 | ||
1442 | old_retry_short = rdev->wiphy.retry_short; | |
1443 | old_retry_long = rdev->wiphy.retry_long; | |
1444 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1445 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1446 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1447 | |
1448 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1449 | rdev->wiphy.retry_short = retry_short; | |
1450 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1451 | rdev->wiphy.retry_long = retry_long; | |
1452 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1453 | rdev->wiphy.frag_threshold = frag_threshold; | |
1454 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1455 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1456 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1457 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1458 | |
1459 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1460 | if (result) { | |
1461 | rdev->wiphy.retry_short = old_retry_short; | |
1462 | rdev->wiphy.retry_long = old_retry_long; | |
1463 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1464 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1465 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1466 | } |
1467 | } | |
72bdcf34 | 1468 | |
306d6112 | 1469 | bad_res: |
4bbf4d56 | 1470 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1471 | if (netdev) |
1472 | dev_put(netdev); | |
55682965 JB |
1473 | return result; |
1474 | } | |
1475 | ||
1476 | ||
1477 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1478 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1479 | struct net_device *dev) |
1480 | { | |
1481 | void *hdr; | |
1482 | ||
1483 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1484 | if (!hdr) | |
1485 | return -1; | |
1486 | ||
1487 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1488 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1489 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1490 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1491 | |
1492 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1493 | rdev->devlist_generation ^ | |
1494 | (cfg80211_rdev_list_generation << 2)); | |
1495 | ||
55682965 JB |
1496 | return genlmsg_end(msg, hdr); |
1497 | ||
1498 | nla_put_failure: | |
bc3ed28c TG |
1499 | genlmsg_cancel(msg, hdr); |
1500 | return -EMSGSIZE; | |
55682965 JB |
1501 | } |
1502 | ||
1503 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1504 | { | |
1505 | int wp_idx = 0; | |
1506 | int if_idx = 0; | |
1507 | int wp_start = cb->args[0]; | |
1508 | int if_start = cb->args[1]; | |
f5ea9120 | 1509 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1510 | struct wireless_dev *wdev; |
1511 | ||
a1794390 | 1512 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1513 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1514 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1515 | continue; |
bba95fef JB |
1516 | if (wp_idx < wp_start) { |
1517 | wp_idx++; | |
55682965 | 1518 | continue; |
bba95fef | 1519 | } |
55682965 JB |
1520 | if_idx = 0; |
1521 | ||
f5ea9120 JB |
1522 | mutex_lock(&rdev->devlist_mtx); |
1523 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1524 | if (if_idx < if_start) { |
1525 | if_idx++; | |
55682965 | 1526 | continue; |
bba95fef | 1527 | } |
55682965 JB |
1528 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1529 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1530 | rdev, wdev->netdev) < 0) { |
1531 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1532 | goto out; |
1533 | } | |
1534 | if_idx++; | |
55682965 | 1535 | } |
f5ea9120 | 1536 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1537 | |
1538 | wp_idx++; | |
55682965 | 1539 | } |
bba95fef | 1540 | out: |
a1794390 | 1541 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1542 | |
1543 | cb->args[0] = wp_idx; | |
1544 | cb->args[1] = if_idx; | |
1545 | ||
1546 | return skb->len; | |
1547 | } | |
1548 | ||
1549 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1550 | { | |
1551 | struct sk_buff *msg; | |
4c476991 JB |
1552 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1553 | struct net_device *netdev = info->user_ptr[1]; | |
55682965 | 1554 | |
fd2120ca | 1555 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1556 | if (!msg) |
4c476991 | 1557 | return -ENOMEM; |
55682965 | 1558 | |
d726405a | 1559 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
4c476991 JB |
1560 | dev, netdev) < 0) { |
1561 | nlmsg_free(msg); | |
1562 | return -ENOBUFS; | |
1563 | } | |
55682965 | 1564 | |
134e6375 | 1565 | return genlmsg_reply(msg, info); |
55682965 JB |
1566 | } |
1567 | ||
66f7ac50 MW |
1568 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1569 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1570 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1571 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1572 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1573 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1574 | }; | |
1575 | ||
1576 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1577 | { | |
1578 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1579 | int flag; | |
1580 | ||
1581 | *mntrflags = 0; | |
1582 | ||
1583 | if (!nla) | |
1584 | return -EINVAL; | |
1585 | ||
1586 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1587 | nla, mntr_flags_policy)) | |
1588 | return -EINVAL; | |
1589 | ||
1590 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1591 | if (flags[flag]) | |
1592 | *mntrflags |= (1<<flag); | |
1593 | ||
1594 | return 0; | |
1595 | } | |
1596 | ||
9bc383de | 1597 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1598 | struct net_device *netdev, u8 use_4addr, |
1599 | enum nl80211_iftype iftype) | |
9bc383de | 1600 | { |
ad4bb6f8 | 1601 | if (!use_4addr) { |
f350a0a8 | 1602 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1603 | return -EBUSY; |
9bc383de | 1604 | return 0; |
ad4bb6f8 | 1605 | } |
9bc383de JB |
1606 | |
1607 | switch (iftype) { | |
1608 | case NL80211_IFTYPE_AP_VLAN: | |
1609 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1610 | return 0; | |
1611 | break; | |
1612 | case NL80211_IFTYPE_STATION: | |
1613 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1614 | return 0; | |
1615 | break; | |
1616 | default: | |
1617 | break; | |
1618 | } | |
1619 | ||
1620 | return -EOPNOTSUPP; | |
1621 | } | |
1622 | ||
55682965 JB |
1623 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1624 | { | |
4c476991 | 1625 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1626 | struct vif_params params; |
e36d56b6 | 1627 | int err; |
04a773ad | 1628 | enum nl80211_iftype otype, ntype; |
4c476991 | 1629 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1630 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1631 | bool change = false; |
55682965 | 1632 | |
2ec600d6 LCC |
1633 | memset(¶ms, 0, sizeof(params)); |
1634 | ||
04a773ad | 1635 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1636 | |
723b038d | 1637 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1638 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1639 | if (otype != ntype) |
ac7f9cfa | 1640 | change = true; |
4c476991 JB |
1641 | if (ntype > NL80211_IFTYPE_MAX) |
1642 | return -EINVAL; | |
723b038d JB |
1643 | } |
1644 | ||
92ffe055 | 1645 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
1646 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1647 | ||
4c476991 JB |
1648 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1649 | return -EINVAL; | |
29cbe68c JB |
1650 | if (netif_running(dev)) |
1651 | return -EBUSY; | |
1652 | ||
1653 | wdev_lock(wdev); | |
1654 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1655 | IEEE80211_MAX_MESH_ID_LEN); | |
1656 | wdev->mesh_id_up_len = | |
1657 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1658 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1659 | wdev->mesh_id_up_len); | |
1660 | wdev_unlock(wdev); | |
2ec600d6 LCC |
1661 | } |
1662 | ||
8b787643 FF |
1663 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1664 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1665 | change = true; | |
ad4bb6f8 | 1666 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1667 | if (err) |
4c476991 | 1668 | return err; |
8b787643 FF |
1669 | } else { |
1670 | params.use_4addr = -1; | |
1671 | } | |
1672 | ||
92ffe055 | 1673 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1674 | if (ntype != NL80211_IFTYPE_MONITOR) |
1675 | return -EINVAL; | |
92ffe055 JB |
1676 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1677 | &_flags); | |
ac7f9cfa | 1678 | if (err) |
4c476991 | 1679 | return err; |
ac7f9cfa JB |
1680 | |
1681 | flags = &_flags; | |
1682 | change = true; | |
92ffe055 | 1683 | } |
3b85875a | 1684 | |
ac7f9cfa | 1685 | if (change) |
3d54d255 | 1686 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1687 | else |
1688 | err = 0; | |
60719ffd | 1689 | |
9bc383de JB |
1690 | if (!err && params.use_4addr != -1) |
1691 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1692 | ||
55682965 JB |
1693 | return err; |
1694 | } | |
1695 | ||
1696 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1697 | { | |
4c476991 | 1698 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1699 | struct vif_params params; |
f9e10ce4 | 1700 | struct net_device *dev; |
55682965 JB |
1701 | int err; |
1702 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1703 | u32 flags; |
55682965 | 1704 | |
2ec600d6 LCC |
1705 | memset(¶ms, 0, sizeof(params)); |
1706 | ||
55682965 JB |
1707 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1708 | return -EINVAL; | |
1709 | ||
1710 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1711 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1712 | if (type > NL80211_IFTYPE_MAX) | |
1713 | return -EINVAL; | |
1714 | } | |
1715 | ||
79c97e97 | 1716 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
1717 | !(rdev->wiphy.interface_modes & (1 << type))) |
1718 | return -EOPNOTSUPP; | |
55682965 | 1719 | |
9bc383de | 1720 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1721 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1722 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 1723 | if (err) |
4c476991 | 1724 | return err; |
9bc383de | 1725 | } |
8b787643 | 1726 | |
66f7ac50 MW |
1727 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1728 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1729 | &flags); | |
f9e10ce4 | 1730 | dev = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1731 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1732 | type, err ? NULL : &flags, ¶ms); |
f9e10ce4 JB |
1733 | if (IS_ERR(dev)) |
1734 | return PTR_ERR(dev); | |
2ec600d6 | 1735 | |
29cbe68c JB |
1736 | if (type == NL80211_IFTYPE_MESH_POINT && |
1737 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1738 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1739 | ||
1740 | wdev_lock(wdev); | |
1741 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1742 | IEEE80211_MAX_MESH_ID_LEN); | |
1743 | wdev->mesh_id_up_len = | |
1744 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1745 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1746 | wdev->mesh_id_up_len); | |
1747 | wdev_unlock(wdev); | |
1748 | } | |
1749 | ||
f9e10ce4 | 1750 | return 0; |
55682965 JB |
1751 | } |
1752 | ||
1753 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1754 | { | |
4c476991 JB |
1755 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1756 | struct net_device *dev = info->user_ptr[1]; | |
55682965 | 1757 | |
4c476991 JB |
1758 | if (!rdev->ops->del_virtual_intf) |
1759 | return -EOPNOTSUPP; | |
55682965 | 1760 | |
4c476991 | 1761 | return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1762 | } |
1763 | ||
1d9d9213 SW |
1764 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
1765 | { | |
1766 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
1767 | struct net_device *dev = info->user_ptr[1]; | |
1768 | u16 noack_map; | |
1769 | ||
1770 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
1771 | return -EINVAL; | |
1772 | ||
1773 | if (!rdev->ops->set_noack_map) | |
1774 | return -EOPNOTSUPP; | |
1775 | ||
1776 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
1777 | ||
1778 | return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map); | |
1779 | } | |
1780 | ||
41ade00f JB |
1781 | struct get_key_cookie { |
1782 | struct sk_buff *msg; | |
1783 | int error; | |
b9454e83 | 1784 | int idx; |
41ade00f JB |
1785 | }; |
1786 | ||
1787 | static void get_key_callback(void *c, struct key_params *params) | |
1788 | { | |
b9454e83 | 1789 | struct nlattr *key; |
41ade00f JB |
1790 | struct get_key_cookie *cookie = c; |
1791 | ||
1792 | if (params->key) | |
1793 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1794 | params->key_len, params->key); | |
1795 | ||
1796 | if (params->seq) | |
1797 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1798 | params->seq_len, params->seq); | |
1799 | ||
1800 | if (params->cipher) | |
1801 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1802 | params->cipher); | |
1803 | ||
b9454e83 JB |
1804 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1805 | if (!key) | |
1806 | goto nla_put_failure; | |
1807 | ||
1808 | if (params->key) | |
1809 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1810 | params->key_len, params->key); | |
1811 | ||
1812 | if (params->seq) | |
1813 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1814 | params->seq_len, params->seq); | |
1815 | ||
1816 | if (params->cipher) | |
1817 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1818 | params->cipher); | |
1819 | ||
1820 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1821 | ||
1822 | nla_nest_end(cookie->msg, key); | |
1823 | ||
41ade00f JB |
1824 | return; |
1825 | nla_put_failure: | |
1826 | cookie->error = 1; | |
1827 | } | |
1828 | ||
1829 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1830 | { | |
4c476991 | 1831 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1832 | int err; |
4c476991 | 1833 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1834 | u8 key_idx = 0; |
e31b8213 JB |
1835 | const u8 *mac_addr = NULL; |
1836 | bool pairwise; | |
41ade00f JB |
1837 | struct get_key_cookie cookie = { |
1838 | .error = 0, | |
1839 | }; | |
1840 | void *hdr; | |
1841 | struct sk_buff *msg; | |
1842 | ||
1843 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1844 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1845 | ||
3cfcf6ac | 1846 | if (key_idx > 5) |
41ade00f JB |
1847 | return -EINVAL; |
1848 | ||
1849 | if (info->attrs[NL80211_ATTR_MAC]) | |
1850 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1851 | ||
e31b8213 JB |
1852 | pairwise = !!mac_addr; |
1853 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
1854 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
1855 | if (kt >= NUM_NL80211_KEYTYPES) | |
1856 | return -EINVAL; | |
1857 | if (kt != NL80211_KEYTYPE_GROUP && | |
1858 | kt != NL80211_KEYTYPE_PAIRWISE) | |
1859 | return -EINVAL; | |
1860 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
1861 | } | |
1862 | ||
4c476991 JB |
1863 | if (!rdev->ops->get_key) |
1864 | return -EOPNOTSUPP; | |
41ade00f | 1865 | |
fd2120ca | 1866 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
1867 | if (!msg) |
1868 | return -ENOMEM; | |
41ade00f JB |
1869 | |
1870 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1871 | NL80211_CMD_NEW_KEY); | |
4c476991 JB |
1872 | if (IS_ERR(hdr)) |
1873 | return PTR_ERR(hdr); | |
41ade00f JB |
1874 | |
1875 | cookie.msg = msg; | |
b9454e83 | 1876 | cookie.idx = key_idx; |
41ade00f JB |
1877 | |
1878 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1879 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1880 | if (mac_addr) | |
1881 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1882 | ||
e31b8213 JB |
1883 | if (pairwise && mac_addr && |
1884 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1885 | return -ENOENT; | |
1886 | ||
1887 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, | |
1888 | mac_addr, &cookie, get_key_callback); | |
41ade00f JB |
1889 | |
1890 | if (err) | |
6c95e2a2 | 1891 | goto free_msg; |
41ade00f JB |
1892 | |
1893 | if (cookie.error) | |
1894 | goto nla_put_failure; | |
1895 | ||
1896 | genlmsg_end(msg, hdr); | |
4c476991 | 1897 | return genlmsg_reply(msg, info); |
41ade00f JB |
1898 | |
1899 | nla_put_failure: | |
1900 | err = -ENOBUFS; | |
6c95e2a2 | 1901 | free_msg: |
41ade00f | 1902 | nlmsg_free(msg); |
41ade00f JB |
1903 | return err; |
1904 | } | |
1905 | ||
1906 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1907 | { | |
4c476991 | 1908 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 1909 | struct key_parse key; |
41ade00f | 1910 | int err; |
4c476991 | 1911 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1912 | |
b9454e83 JB |
1913 | err = nl80211_parse_key(info, &key); |
1914 | if (err) | |
1915 | return err; | |
41ade00f | 1916 | |
b9454e83 | 1917 | if (key.idx < 0) |
41ade00f JB |
1918 | return -EINVAL; |
1919 | ||
b9454e83 JB |
1920 | /* only support setting default key */ |
1921 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1922 | return -EINVAL; |
1923 | ||
dbd2fd65 | 1924 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 1925 | |
dbd2fd65 JB |
1926 | if (key.def) { |
1927 | if (!rdev->ops->set_default_key) { | |
1928 | err = -EOPNOTSUPP; | |
1929 | goto out; | |
1930 | } | |
41ade00f | 1931 | |
dbd2fd65 JB |
1932 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
1933 | if (err) | |
1934 | goto out; | |
1935 | ||
dbd2fd65 JB |
1936 | err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx, |
1937 | key.def_uni, key.def_multi); | |
1938 | ||
1939 | if (err) | |
1940 | goto out; | |
fffd0934 | 1941 | |
3d23e349 | 1942 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
1943 | dev->ieee80211_ptr->wext.default_key = key.idx; |
1944 | #endif | |
1945 | } else { | |
1946 | if (key.def_uni || !key.def_multi) { | |
1947 | err = -EINVAL; | |
1948 | goto out; | |
1949 | } | |
1950 | ||
1951 | if (!rdev->ops->set_default_mgmt_key) { | |
1952 | err = -EOPNOTSUPP; | |
1953 | goto out; | |
1954 | } | |
1955 | ||
1956 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1957 | if (err) | |
1958 | goto out; | |
1959 | ||
1960 | err = rdev->ops->set_default_mgmt_key(&rdev->wiphy, | |
1961 | dev, key.idx); | |
1962 | if (err) | |
1963 | goto out; | |
1964 | ||
1965 | #ifdef CONFIG_CFG80211_WEXT | |
1966 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 1967 | #endif |
dbd2fd65 JB |
1968 | } |
1969 | ||
1970 | out: | |
fffd0934 | 1971 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 1972 | |
41ade00f JB |
1973 | return err; |
1974 | } | |
1975 | ||
1976 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1977 | { | |
4c476991 | 1978 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 1979 | int err; |
4c476991 | 1980 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 1981 | struct key_parse key; |
e31b8213 | 1982 | const u8 *mac_addr = NULL; |
41ade00f | 1983 | |
b9454e83 JB |
1984 | err = nl80211_parse_key(info, &key); |
1985 | if (err) | |
1986 | return err; | |
41ade00f | 1987 | |
b9454e83 | 1988 | if (!key.p.key) |
41ade00f JB |
1989 | return -EINVAL; |
1990 | ||
41ade00f JB |
1991 | if (info->attrs[NL80211_ATTR_MAC]) |
1992 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1993 | ||
e31b8213 JB |
1994 | if (key.type == -1) { |
1995 | if (mac_addr) | |
1996 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1997 | else | |
1998 | key.type = NL80211_KEYTYPE_GROUP; | |
1999 | } | |
2000 | ||
2001 | /* for now */ | |
2002 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2003 | key.type != NL80211_KEYTYPE_GROUP) | |
2004 | return -EINVAL; | |
2005 | ||
4c476991 JB |
2006 | if (!rdev->ops->add_key) |
2007 | return -EOPNOTSUPP; | |
25e47c18 | 2008 | |
e31b8213 JB |
2009 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2010 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2011 | mac_addr)) | |
4c476991 | 2012 | return -EINVAL; |
41ade00f | 2013 | |
fffd0934 JB |
2014 | wdev_lock(dev->ieee80211_ptr); |
2015 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2016 | if (!err) | |
2017 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
e31b8213 | 2018 | key.type == NL80211_KEYTYPE_PAIRWISE, |
fffd0934 JB |
2019 | mac_addr, &key.p); |
2020 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 2021 | |
41ade00f JB |
2022 | return err; |
2023 | } | |
2024 | ||
2025 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2026 | { | |
4c476991 | 2027 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2028 | int err; |
4c476991 | 2029 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2030 | u8 *mac_addr = NULL; |
b9454e83 | 2031 | struct key_parse key; |
41ade00f | 2032 | |
b9454e83 JB |
2033 | err = nl80211_parse_key(info, &key); |
2034 | if (err) | |
2035 | return err; | |
41ade00f JB |
2036 | |
2037 | if (info->attrs[NL80211_ATTR_MAC]) | |
2038 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2039 | ||
e31b8213 JB |
2040 | if (key.type == -1) { |
2041 | if (mac_addr) | |
2042 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2043 | else | |
2044 | key.type = NL80211_KEYTYPE_GROUP; | |
2045 | } | |
2046 | ||
2047 | /* for now */ | |
2048 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2049 | key.type != NL80211_KEYTYPE_GROUP) | |
2050 | return -EINVAL; | |
2051 | ||
4c476991 JB |
2052 | if (!rdev->ops->del_key) |
2053 | return -EOPNOTSUPP; | |
41ade00f | 2054 | |
fffd0934 JB |
2055 | wdev_lock(dev->ieee80211_ptr); |
2056 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
2057 | |
2058 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2059 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2060 | err = -ENOENT; | |
2061 | ||
fffd0934 | 2062 | if (!err) |
e31b8213 JB |
2063 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, |
2064 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2065 | mac_addr); | |
41ade00f | 2066 | |
3d23e349 | 2067 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 2068 | if (!err) { |
b9454e83 | 2069 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 2070 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 2071 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
2072 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2073 | } | |
2074 | #endif | |
fffd0934 | 2075 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 2076 | |
41ade00f JB |
2077 | return err; |
2078 | } | |
2079 | ||
8860020e JB |
2080 | static int nl80211_parse_beacon(struct genl_info *info, |
2081 | struct cfg80211_beacon_data *bcn) | |
ed1b6cc7 | 2082 | { |
8860020e | 2083 | bool haveinfo = false; |
ed1b6cc7 | 2084 | |
9946ecfb JM |
2085 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) || |
2086 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) || | |
2087 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
2088 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
2089 | return -EINVAL; |
2090 | ||
8860020e | 2091 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 2092 | |
ed1b6cc7 | 2093 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { |
8860020e JB |
2094 | bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); |
2095 | bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
2096 | if (!bcn->head_len) | |
2097 | return -EINVAL; | |
2098 | haveinfo = true; | |
ed1b6cc7 JB |
2099 | } |
2100 | ||
2101 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
8860020e JB |
2102 | bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
2103 | bcn->tail_len = | |
ed1b6cc7 | 2104 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); |
8860020e | 2105 | haveinfo = true; |
ed1b6cc7 JB |
2106 | } |
2107 | ||
4c476991 JB |
2108 | if (!haveinfo) |
2109 | return -EINVAL; | |
3b85875a | 2110 | |
9946ecfb | 2111 | if (info->attrs[NL80211_ATTR_IE]) { |
8860020e JB |
2112 | bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]); |
2113 | bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
2114 | } |
2115 | ||
2116 | if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) { | |
8860020e | 2117 | bcn->proberesp_ies = |
9946ecfb | 2118 | nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 2119 | bcn->proberesp_ies_len = |
9946ecfb JM |
2120 | nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]); |
2121 | } | |
2122 | ||
2123 | if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) { | |
8860020e | 2124 | bcn->assocresp_ies = |
9946ecfb | 2125 | nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 2126 | bcn->assocresp_ies_len = |
9946ecfb JM |
2127 | nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
2128 | } | |
2129 | ||
00f740e1 | 2130 | if (info->attrs[NL80211_ATTR_PROBE_RESP]) { |
8860020e | 2131 | bcn->probe_resp = |
00f740e1 | 2132 | nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]); |
8860020e | 2133 | bcn->probe_resp_len = |
00f740e1 AN |
2134 | nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]); |
2135 | } | |
2136 | ||
8860020e JB |
2137 | return 0; |
2138 | } | |
2139 | ||
2140 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) | |
2141 | { | |
2142 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2143 | struct net_device *dev = info->user_ptr[1]; | |
2144 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2145 | struct cfg80211_ap_settings params; | |
2146 | int err; | |
2147 | ||
2148 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2149 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2150 | return -EOPNOTSUPP; | |
2151 | ||
2152 | if (!rdev->ops->start_ap) | |
2153 | return -EOPNOTSUPP; | |
2154 | ||
2155 | if (wdev->beacon_interval) | |
2156 | return -EALREADY; | |
2157 | ||
2158 | memset(¶ms, 0, sizeof(params)); | |
2159 | ||
2160 | /* these are required for START_AP */ | |
2161 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
2162 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
2163 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
2164 | return -EINVAL; | |
2165 | ||
2166 | err = nl80211_parse_beacon(info, ¶ms.beacon); | |
2167 | if (err) | |
2168 | return err; | |
2169 | ||
2170 | params.beacon_interval = | |
2171 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
2172 | params.dtim_period = | |
2173 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
2174 | ||
2175 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
2176 | if (err) | |
2177 | return err; | |
2178 | ||
2179 | /* | |
2180 | * In theory, some of these attributes should be required here | |
2181 | * but since they were not used when the command was originally | |
2182 | * added, keep them optional for old user space programs to let | |
2183 | * them continue to work with drivers that do not need the | |
2184 | * additional information -- drivers must check! | |
2185 | */ | |
2186 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2187 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2188 | params.ssid_len = | |
2189 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2190 | if (params.ssid_len == 0 || | |
2191 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
2192 | return -EINVAL; | |
2193 | } | |
2194 | ||
2195 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
2196 | params.hidden_ssid = nla_get_u32( | |
2197 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
2198 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
2199 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
2200 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
2201 | return -EINVAL; | |
2202 | } | |
2203 | ||
2204 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
2205 | ||
2206 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
2207 | params.auth_type = nla_get_u32( | |
2208 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
2209 | if (!nl80211_valid_auth_type(params.auth_type)) | |
2210 | return -EINVAL; | |
2211 | } else | |
2212 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
2213 | ||
2214 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
2215 | NL80211_MAX_NR_CIPHER_SUITES); | |
2216 | if (err) | |
2217 | return err; | |
2218 | ||
1b658f11 VT |
2219 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
2220 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
2221 | return -EOPNOTSUPP; | |
2222 | params.inactivity_timeout = nla_get_u16( | |
2223 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
2224 | } | |
2225 | ||
8860020e JB |
2226 | err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms); |
2227 | if (!err) | |
2228 | wdev->beacon_interval = params.beacon_interval; | |
56d1893d | 2229 | return err; |
ed1b6cc7 JB |
2230 | } |
2231 | ||
8860020e JB |
2232 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
2233 | { | |
2234 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2235 | struct net_device *dev = info->user_ptr[1]; | |
2236 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
2237 | struct cfg80211_beacon_data params; | |
2238 | int err; | |
2239 | ||
2240 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
2241 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
2242 | return -EOPNOTSUPP; | |
2243 | ||
2244 | if (!rdev->ops->change_beacon) | |
2245 | return -EOPNOTSUPP; | |
2246 | ||
2247 | if (!wdev->beacon_interval) | |
2248 | return -EINVAL; | |
2249 | ||
2250 | err = nl80211_parse_beacon(info, ¶ms); | |
2251 | if (err) | |
2252 | return err; | |
2253 | ||
2254 | return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms); | |
2255 | } | |
2256 | ||
2257 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 2258 | { |
4c476991 JB |
2259 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2260 | struct net_device *dev = info->user_ptr[1]; | |
56d1893d JB |
2261 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2262 | int err; | |
ed1b6cc7 | 2263 | |
8860020e | 2264 | if (!rdev->ops->stop_ap) |
4c476991 | 2265 | return -EOPNOTSUPP; |
ed1b6cc7 | 2266 | |
074ac8df | 2267 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
2268 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2269 | return -EOPNOTSUPP; | |
3b85875a | 2270 | |
8860020e JB |
2271 | if (!wdev->beacon_interval) |
2272 | return -ENOENT; | |
2273 | ||
2274 | err = rdev->ops->stop_ap(&rdev->wiphy, dev); | |
56d1893d JB |
2275 | if (!err) |
2276 | wdev->beacon_interval = 0; | |
2277 | return err; | |
ed1b6cc7 JB |
2278 | } |
2279 | ||
5727ef1b JB |
2280 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
2281 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
2282 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
2283 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 2284 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 2285 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 2286 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
2287 | }; |
2288 | ||
eccb8e8f | 2289 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 2290 | enum nl80211_iftype iftype, |
eccb8e8f | 2291 | struct station_parameters *params) |
5727ef1b JB |
2292 | { |
2293 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 2294 | struct nlattr *nla; |
5727ef1b JB |
2295 | int flag; |
2296 | ||
eccb8e8f JB |
2297 | /* |
2298 | * Try parsing the new attribute first so userspace | |
2299 | * can specify both for older kernels. | |
2300 | */ | |
2301 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
2302 | if (nla) { | |
2303 | struct nl80211_sta_flag_update *sta_flags; | |
2304 | ||
2305 | sta_flags = nla_data(nla); | |
2306 | params->sta_flags_mask = sta_flags->mask; | |
2307 | params->sta_flags_set = sta_flags->set; | |
2308 | if ((params->sta_flags_mask | | |
2309 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
2310 | return -EINVAL; | |
2311 | return 0; | |
2312 | } | |
2313 | ||
2314 | /* if present, parse the old attribute */ | |
5727ef1b | 2315 | |
eccb8e8f | 2316 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
2317 | if (!nla) |
2318 | return 0; | |
2319 | ||
2320 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
2321 | nla, sta_flags_policy)) | |
2322 | return -EINVAL; | |
2323 | ||
bdd3ae3d JB |
2324 | /* |
2325 | * Only allow certain flags for interface types so that | |
2326 | * other attributes are silently ignored. Remember that | |
2327 | * this is backward compatibility code with old userspace | |
2328 | * and shouldn't be hit in other cases anyway. | |
2329 | */ | |
2330 | switch (iftype) { | |
2331 | case NL80211_IFTYPE_AP: | |
2332 | case NL80211_IFTYPE_AP_VLAN: | |
2333 | case NL80211_IFTYPE_P2P_GO: | |
2334 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2335 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2336 | BIT(NL80211_STA_FLAG_WME) | | |
2337 | BIT(NL80211_STA_FLAG_MFP); | |
2338 | break; | |
2339 | case NL80211_IFTYPE_P2P_CLIENT: | |
2340 | case NL80211_IFTYPE_STATION: | |
2341 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2342 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2343 | break; | |
2344 | case NL80211_IFTYPE_MESH_POINT: | |
2345 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
2346 | BIT(NL80211_STA_FLAG_MFP) | | |
2347 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
2348 | default: | |
2349 | return -EINVAL; | |
2350 | } | |
5727ef1b JB |
2351 | |
2352 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
2353 | if (flags[flag]) | |
eccb8e8f | 2354 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
2355 | |
2356 | return 0; | |
2357 | } | |
2358 | ||
c8dcfd8a FF |
2359 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
2360 | int attr) | |
2361 | { | |
2362 | struct nlattr *rate; | |
2363 | u16 bitrate; | |
2364 | ||
2365 | rate = nla_nest_start(msg, attr); | |
2366 | if (!rate) | |
2367 | goto nla_put_failure; | |
2368 | ||
2369 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
2370 | bitrate = cfg80211_calculate_bitrate(info); | |
2371 | if (bitrate > 0) | |
2372 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2373 | ||
2374 | if (info->flags & RATE_INFO_FLAGS_MCS) | |
2375 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs); | |
2376 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
2377 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
2378 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI) | |
2379 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
2380 | ||
2381 | nla_nest_end(msg, rate); | |
2382 | return true; | |
2383 | ||
2384 | nla_put_failure: | |
2385 | return false; | |
2386 | } | |
2387 | ||
fd5b74dc | 2388 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
66266b3a JL |
2389 | int flags, |
2390 | struct cfg80211_registered_device *rdev, | |
2391 | struct net_device *dev, | |
98b62183 | 2392 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
2393 | { |
2394 | void *hdr; | |
f4263c98 | 2395 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc JB |
2396 | |
2397 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2398 | if (!hdr) | |
2399 | return -1; | |
2400 | ||
2401 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2402 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
2403 | ||
f5ea9120 JB |
2404 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
2405 | ||
2ec600d6 LCC |
2406 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
2407 | if (!sinfoattr) | |
fd5b74dc | 2408 | goto nla_put_failure; |
ebe27c91 MSS |
2409 | if (sinfo->filled & STATION_INFO_CONNECTED_TIME) |
2410 | NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
2411 | sinfo->connected_time); | |
2ec600d6 LCC |
2412 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
2413 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
2414 | sinfo->inactive_time); | |
2415 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
2416 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
2417 | sinfo->rx_bytes); | |
2418 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
2419 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
2420 | sinfo->tx_bytes); | |
2421 | if (sinfo->filled & STATION_INFO_LLID) | |
2422 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
2423 | sinfo->llid); | |
2424 | if (sinfo->filled & STATION_INFO_PLID) | |
2425 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
2426 | sinfo->plid); | |
2427 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
2428 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
2429 | sinfo->plink_state); | |
66266b3a JL |
2430 | switch (rdev->wiphy.signal_type) { |
2431 | case CFG80211_SIGNAL_TYPE_MBM: | |
2432 | if (sinfo->filled & STATION_INFO_SIGNAL) | |
2433 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
2434 | sinfo->signal); | |
2435 | if (sinfo->filled & STATION_INFO_SIGNAL_AVG) | |
2436 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
2437 | sinfo->signal_avg); | |
2438 | break; | |
2439 | default: | |
2440 | break; | |
2441 | } | |
420e7fab | 2442 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
c8dcfd8a FF |
2443 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
2444 | NL80211_STA_INFO_TX_BITRATE)) | |
2445 | goto nla_put_failure; | |
2446 | } | |
2447 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
2448 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
2449 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 2450 | goto nla_put_failure; |
420e7fab | 2451 | } |
98c8a60a JM |
2452 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
2453 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
2454 | sinfo->rx_packets); | |
2455 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
2456 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
2457 | sinfo->tx_packets); | |
b206b4ef BR |
2458 | if (sinfo->filled & STATION_INFO_TX_RETRIES) |
2459 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES, | |
2460 | sinfo->tx_retries); | |
2461 | if (sinfo->filled & STATION_INFO_TX_FAILED) | |
2462 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED, | |
2463 | sinfo->tx_failed); | |
a85e1d55 PS |
2464 | if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) |
2465 | NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
2466 | sinfo->beacon_loss_count); | |
f4263c98 PS |
2467 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
2468 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
2469 | if (!bss_param) | |
2470 | goto nla_put_failure; | |
2471 | ||
2472 | if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) | |
2473 | NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT); | |
2474 | if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) | |
2475 | NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE); | |
2476 | if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) | |
2477 | NLA_PUT_FLAG(msg, | |
2478 | NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME); | |
2479 | NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
2480 | sinfo->bss_param.dtim_period); | |
2481 | NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
2482 | sinfo->bss_param.beacon_interval); | |
2483 | ||
2484 | nla_nest_end(msg, bss_param); | |
2485 | } | |
bb6e753e HS |
2486 | if (sinfo->filled & STATION_INFO_STA_FLAGS) |
2487 | NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS, | |
2488 | sizeof(struct nl80211_sta_flag_update), | |
2489 | &sinfo->sta_flags); | |
2ec600d6 | 2490 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 2491 | |
040bdf71 | 2492 | if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES) |
50d3dfb7 JM |
2493 | NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, |
2494 | sinfo->assoc_req_ies); | |
2495 | ||
fd5b74dc JB |
2496 | return genlmsg_end(msg, hdr); |
2497 | ||
2498 | nla_put_failure: | |
bc3ed28c TG |
2499 | genlmsg_cancel(msg, hdr); |
2500 | return -EMSGSIZE; | |
fd5b74dc JB |
2501 | } |
2502 | ||
2ec600d6 | 2503 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 2504 | struct netlink_callback *cb) |
2ec600d6 | 2505 | { |
2ec600d6 LCC |
2506 | struct station_info sinfo; |
2507 | struct cfg80211_registered_device *dev; | |
bba95fef | 2508 | struct net_device *netdev; |
2ec600d6 | 2509 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 2510 | int sta_idx = cb->args[1]; |
2ec600d6 | 2511 | int err; |
2ec600d6 | 2512 | |
67748893 JB |
2513 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2514 | if (err) | |
2515 | return err; | |
bba95fef JB |
2516 | |
2517 | if (!dev->ops->dump_station) { | |
eec60b03 | 2518 | err = -EOPNOTSUPP; |
bba95fef JB |
2519 | goto out_err; |
2520 | } | |
2521 | ||
bba95fef | 2522 | while (1) { |
f612cedf | 2523 | memset(&sinfo, 0, sizeof(sinfo)); |
bba95fef JB |
2524 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, |
2525 | mac_addr, &sinfo); | |
2526 | if (err == -ENOENT) | |
2527 | break; | |
2528 | if (err) | |
3b85875a | 2529 | goto out_err; |
bba95fef JB |
2530 | |
2531 | if (nl80211_send_station(skb, | |
2532 | NETLINK_CB(cb->skb).pid, | |
2533 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
66266b3a | 2534 | dev, netdev, mac_addr, |
bba95fef JB |
2535 | &sinfo) < 0) |
2536 | goto out; | |
2537 | ||
2538 | sta_idx++; | |
2539 | } | |
2540 | ||
2541 | ||
2542 | out: | |
2543 | cb->args[1] = sta_idx; | |
2544 | err = skb->len; | |
bba95fef | 2545 | out_err: |
67748893 | 2546 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
2547 | |
2548 | return err; | |
2ec600d6 | 2549 | } |
fd5b74dc | 2550 | |
5727ef1b JB |
2551 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
2552 | { | |
4c476991 JB |
2553 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2554 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 2555 | struct station_info sinfo; |
fd5b74dc JB |
2556 | struct sk_buff *msg; |
2557 | u8 *mac_addr = NULL; | |
4c476991 | 2558 | int err; |
fd5b74dc | 2559 | |
2ec600d6 | 2560 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2561 | |
2562 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2563 | return -EINVAL; | |
2564 | ||
2565 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2566 | ||
4c476991 JB |
2567 | if (!rdev->ops->get_station) |
2568 | return -EOPNOTSUPP; | |
3b85875a | 2569 | |
4c476991 | 2570 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 2571 | if (err) |
4c476991 | 2572 | return err; |
2ec600d6 | 2573 | |
fd2120ca | 2574 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 2575 | if (!msg) |
4c476991 | 2576 | return -ENOMEM; |
fd5b74dc JB |
2577 | |
2578 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
66266b3a | 2579 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
2580 | nlmsg_free(msg); |
2581 | return -ENOBUFS; | |
2582 | } | |
3b85875a | 2583 | |
4c476991 | 2584 | return genlmsg_reply(msg, info); |
5727ef1b JB |
2585 | } |
2586 | ||
2587 | /* | |
c258d2de | 2588 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 2589 | */ |
80b99899 JB |
2590 | static struct net_device *get_vlan(struct genl_info *info, |
2591 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 2592 | { |
463d0183 | 2593 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
2594 | struct net_device *v; |
2595 | int ret; | |
2596 | ||
2597 | if (!vlanattr) | |
2598 | return NULL; | |
2599 | ||
2600 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
2601 | if (!v) | |
2602 | return ERR_PTR(-ENODEV); | |
2603 | ||
2604 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
2605 | ret = -EINVAL; | |
2606 | goto error; | |
5727ef1b | 2607 | } |
80b99899 JB |
2608 | |
2609 | if (!netif_running(v)) { | |
2610 | ret = -ENETDOWN; | |
2611 | goto error; | |
2612 | } | |
2613 | ||
2614 | return v; | |
2615 | error: | |
2616 | dev_put(v); | |
2617 | return ERR_PTR(ret); | |
5727ef1b JB |
2618 | } |
2619 | ||
2620 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2621 | { | |
4c476991 | 2622 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2623 | int err; |
4c476991 | 2624 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2625 | struct station_parameters params; |
2626 | u8 *mac_addr = NULL; | |
2627 | ||
2628 | memset(¶ms, 0, sizeof(params)); | |
2629 | ||
2630 | params.listen_interval = -1; | |
57cf8043 | 2631 | params.plink_state = -1; |
5727ef1b JB |
2632 | |
2633 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2634 | return -EINVAL; | |
2635 | ||
2636 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2637 | return -EINVAL; | |
2638 | ||
2639 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2640 | ||
2641 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2642 | params.supported_rates = | |
2643 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2644 | params.supported_rates_len = | |
2645 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2646 | } | |
2647 | ||
2648 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2649 | params.listen_interval = | |
2650 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2651 | ||
36aedc90 JM |
2652 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2653 | params.ht_capa = | |
2654 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2655 | ||
bdd90d5e JB |
2656 | if (!rdev->ops->change_station) |
2657 | return -EOPNOTSUPP; | |
2658 | ||
bdd3ae3d | 2659 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
2660 | return -EINVAL; |
2661 | ||
2ec600d6 LCC |
2662 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2663 | params.plink_action = | |
2664 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2665 | ||
9c3990aa JC |
2666 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) |
2667 | params.plink_state = | |
2668 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); | |
2669 | ||
a97f4424 JB |
2670 | switch (dev->ieee80211_ptr->iftype) { |
2671 | case NL80211_IFTYPE_AP: | |
2672 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 2673 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
2674 | /* disallow mesh-specific things */ |
2675 | if (params.plink_action) | |
bdd90d5e JB |
2676 | return -EINVAL; |
2677 | ||
2678 | /* TDLS can't be set, ... */ | |
2679 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
2680 | return -EINVAL; | |
2681 | /* | |
2682 | * ... but don't bother the driver with it. This works around | |
2683 | * a hostapd/wpa_supplicant issue -- it always includes the | |
2684 | * TLDS_PEER flag in the mask even for AP mode. | |
2685 | */ | |
2686 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
2687 | ||
2688 | /* accept only the listed bits */ | |
2689 | if (params.sta_flags_mask & | |
2690 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
2691 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
2692 | BIT(NL80211_STA_FLAG_WME) | | |
2693 | BIT(NL80211_STA_FLAG_MFP))) | |
2694 | return -EINVAL; | |
2695 | ||
2696 | /* must be last in here for error handling */ | |
2697 | params.vlan = get_vlan(info, rdev); | |
2698 | if (IS_ERR(params.vlan)) | |
2699 | return PTR_ERR(params.vlan); | |
a97f4424 | 2700 | break; |
074ac8df | 2701 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 2702 | case NL80211_IFTYPE_STATION: |
bdd90d5e JB |
2703 | /* |
2704 | * Don't allow userspace to change the TDLS_PEER flag, | |
2705 | * but silently ignore attempts to change it since we | |
2706 | * don't have state here to verify that it doesn't try | |
2707 | * to change the flag. | |
2708 | */ | |
2709 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
267335d6 AQ |
2710 | /* fall through */ |
2711 | case NL80211_IFTYPE_ADHOC: | |
2712 | /* disallow things sta doesn't support */ | |
2713 | if (params.plink_action) | |
2714 | return -EINVAL; | |
2715 | if (params.ht_capa) | |
2716 | return -EINVAL; | |
2717 | if (params.listen_interval >= 0) | |
2718 | return -EINVAL; | |
bdd90d5e JB |
2719 | /* reject any changes other than AUTHORIZED */ |
2720 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2721 | return -EINVAL; | |
a97f4424 JB |
2722 | break; |
2723 | case NL80211_IFTYPE_MESH_POINT: | |
2724 | /* disallow things mesh doesn't support */ | |
2725 | if (params.vlan) | |
bdd90d5e | 2726 | return -EINVAL; |
a97f4424 | 2727 | if (params.ht_capa) |
bdd90d5e | 2728 | return -EINVAL; |
a97f4424 | 2729 | if (params.listen_interval >= 0) |
bdd90d5e JB |
2730 | return -EINVAL; |
2731 | /* | |
2732 | * No special handling for TDLS here -- the userspace | |
2733 | * mesh code doesn't have this bug. | |
2734 | */ | |
b39c48fa JC |
2735 | if (params.sta_flags_mask & |
2736 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
8429828e | 2737 | BIT(NL80211_STA_FLAG_MFP) | |
b39c48fa | 2738 | BIT(NL80211_STA_FLAG_AUTHORIZED))) |
bdd90d5e | 2739 | return -EINVAL; |
a97f4424 JB |
2740 | break; |
2741 | default: | |
bdd90d5e | 2742 | return -EOPNOTSUPP; |
034d655e JB |
2743 | } |
2744 | ||
bdd90d5e | 2745 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 2746 | |
79c97e97 | 2747 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b | 2748 | |
5727ef1b JB |
2749 | if (params.vlan) |
2750 | dev_put(params.vlan); | |
3b85875a | 2751 | |
5727ef1b JB |
2752 | return err; |
2753 | } | |
2754 | ||
c75786c9 EP |
2755 | static struct nla_policy |
2756 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { | |
2757 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, | |
2758 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
2759 | }; | |
2760 | ||
5727ef1b JB |
2761 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) |
2762 | { | |
4c476991 | 2763 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2764 | int err; |
4c476991 | 2765 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2766 | struct station_parameters params; |
2767 | u8 *mac_addr = NULL; | |
2768 | ||
2769 | memset(¶ms, 0, sizeof(params)); | |
2770 | ||
2771 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2772 | return -EINVAL; | |
2773 | ||
5727ef1b JB |
2774 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2775 | return -EINVAL; | |
2776 | ||
2777 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2778 | return -EINVAL; | |
2779 | ||
0e956c13 TLSC |
2780 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2781 | return -EINVAL; | |
2782 | ||
5727ef1b JB |
2783 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2784 | params.supported_rates = | |
2785 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2786 | params.supported_rates_len = | |
2787 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2788 | params.listen_interval = | |
2789 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2790 | |
0e956c13 TLSC |
2791 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2792 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2793 | return -EINVAL; | |
51b50fbe | 2794 | |
36aedc90 JM |
2795 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2796 | params.ht_capa = | |
2797 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2798 | |
96b78dff JC |
2799 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2800 | params.plink_action = | |
2801 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2802 | ||
bdd90d5e JB |
2803 | if (!rdev->ops->add_station) |
2804 | return -EOPNOTSUPP; | |
2805 | ||
bdd3ae3d | 2806 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
2807 | return -EINVAL; |
2808 | ||
bdd90d5e JB |
2809 | switch (dev->ieee80211_ptr->iftype) { |
2810 | case NL80211_IFTYPE_AP: | |
2811 | case NL80211_IFTYPE_AP_VLAN: | |
2812 | case NL80211_IFTYPE_P2P_GO: | |
2813 | /* parse WME attributes if sta is WME capable */ | |
2814 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && | |
2815 | (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) && | |
2816 | info->attrs[NL80211_ATTR_STA_WME]) { | |
2817 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; | |
2818 | struct nlattr *nla; | |
2819 | ||
2820 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
2821 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
2822 | nl80211_sta_wme_policy); | |
2823 | if (err) | |
2824 | return err; | |
2825 | ||
2826 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
2827 | params.uapsd_queues = | |
2828 | nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
2829 | if (params.uapsd_queues & | |
2830 | ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
2831 | return -EINVAL; | |
c75786c9 | 2832 | |
bdd90d5e JB |
2833 | if (tb[NL80211_STA_WME_MAX_SP]) |
2834 | params.max_sp = | |
2835 | nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
c75786c9 | 2836 | |
bdd90d5e JB |
2837 | if (params.max_sp & |
2838 | ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
2839 | return -EINVAL; | |
4319e193 | 2840 | |
bdd90d5e JB |
2841 | params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; |
2842 | } | |
2843 | /* TDLS peers cannot be added */ | |
2844 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4319e193 | 2845 | return -EINVAL; |
bdd90d5e JB |
2846 | /* but don't bother the driver with it */ |
2847 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 2848 | |
bdd90d5e JB |
2849 | /* must be last in here for error handling */ |
2850 | params.vlan = get_vlan(info, rdev); | |
2851 | if (IS_ERR(params.vlan)) | |
2852 | return PTR_ERR(params.vlan); | |
2853 | break; | |
2854 | case NL80211_IFTYPE_MESH_POINT: | |
2855 | /* TDLS peers cannot be added */ | |
2856 | if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
2857 | return -EINVAL; | |
2858 | break; | |
2859 | case NL80211_IFTYPE_STATION: | |
2860 | /* Only TDLS peers can be added */ | |
2861 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
2862 | return -EINVAL; | |
2863 | /* Can only add if TDLS ... */ | |
2864 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
2865 | return -EOPNOTSUPP; | |
2866 | /* ... with external setup is supported */ | |
2867 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
2868 | return -EOPNOTSUPP; | |
2869 | break; | |
2870 | default: | |
2871 | return -EOPNOTSUPP; | |
c75786c9 EP |
2872 | } |
2873 | ||
bdd90d5e | 2874 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 2875 | |
79c97e97 | 2876 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b | 2877 | |
5727ef1b JB |
2878 | if (params.vlan) |
2879 | dev_put(params.vlan); | |
5727ef1b JB |
2880 | return err; |
2881 | } | |
2882 | ||
2883 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2884 | { | |
4c476991 JB |
2885 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2886 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
2887 | u8 *mac_addr = NULL; |
2888 | ||
2889 | if (info->attrs[NL80211_ATTR_MAC]) | |
2890 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2891 | ||
e80cf853 | 2892 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 2893 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 2894 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
2895 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2896 | return -EINVAL; | |
5727ef1b | 2897 | |
4c476991 JB |
2898 | if (!rdev->ops->del_station) |
2899 | return -EOPNOTSUPP; | |
3b85875a | 2900 | |
4c476991 | 2901 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2902 | } |
2903 | ||
2ec600d6 LCC |
2904 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2905 | int flags, struct net_device *dev, | |
2906 | u8 *dst, u8 *next_hop, | |
2907 | struct mpath_info *pinfo) | |
2908 | { | |
2909 | void *hdr; | |
2910 | struct nlattr *pinfoattr; | |
2911 | ||
2912 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2913 | if (!hdr) | |
2914 | return -1; | |
2915 | ||
2916 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2917 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2918 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2919 | ||
f5ea9120 JB |
2920 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2921 | ||
2ec600d6 LCC |
2922 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2923 | if (!pinfoattr) | |
2924 | goto nla_put_failure; | |
2925 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2926 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2927 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2928 | if (pinfo->filled & MPATH_INFO_SN) |
2929 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2930 | pinfo->sn); | |
2ec600d6 LCC |
2931 | if (pinfo->filled & MPATH_INFO_METRIC) |
2932 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2933 | pinfo->metric); | |
2934 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2935 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2936 | pinfo->exptime); | |
2937 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2938 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2939 | pinfo->flags); | |
2940 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2941 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2942 | pinfo->discovery_timeout); | |
2943 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2944 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2945 | pinfo->discovery_retries); | |
2946 | ||
2947 | nla_nest_end(msg, pinfoattr); | |
2948 | ||
2949 | return genlmsg_end(msg, hdr); | |
2950 | ||
2951 | nla_put_failure: | |
bc3ed28c TG |
2952 | genlmsg_cancel(msg, hdr); |
2953 | return -EMSGSIZE; | |
2ec600d6 LCC |
2954 | } |
2955 | ||
2956 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2957 | struct netlink_callback *cb) |
2ec600d6 | 2958 | { |
2ec600d6 LCC |
2959 | struct mpath_info pinfo; |
2960 | struct cfg80211_registered_device *dev; | |
bba95fef | 2961 | struct net_device *netdev; |
2ec600d6 LCC |
2962 | u8 dst[ETH_ALEN]; |
2963 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 2964 | int path_idx = cb->args[1]; |
2ec600d6 | 2965 | int err; |
2ec600d6 | 2966 | |
67748893 JB |
2967 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2968 | if (err) | |
2969 | return err; | |
bba95fef JB |
2970 | |
2971 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2972 | err = -EOPNOTSUPP; |
bba95fef JB |
2973 | goto out_err; |
2974 | } | |
2975 | ||
eec60b03 JM |
2976 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2977 | err = -EOPNOTSUPP; | |
0448b5fc | 2978 | goto out_err; |
eec60b03 JM |
2979 | } |
2980 | ||
bba95fef JB |
2981 | while (1) { |
2982 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2983 | dst, next_hop, &pinfo); | |
2984 | if (err == -ENOENT) | |
2ec600d6 | 2985 | break; |
bba95fef | 2986 | if (err) |
3b85875a | 2987 | goto out_err; |
2ec600d6 | 2988 | |
bba95fef JB |
2989 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2990 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2991 | netdev, dst, next_hop, | |
2992 | &pinfo) < 0) | |
2993 | goto out; | |
2ec600d6 | 2994 | |
bba95fef | 2995 | path_idx++; |
2ec600d6 | 2996 | } |
2ec600d6 | 2997 | |
2ec600d6 | 2998 | |
bba95fef JB |
2999 | out: |
3000 | cb->args[1] = path_idx; | |
3001 | err = skb->len; | |
bba95fef | 3002 | out_err: |
67748893 | 3003 | nl80211_finish_netdev_dump(dev); |
bba95fef | 3004 | return err; |
2ec600d6 LCC |
3005 | } |
3006 | ||
3007 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
3008 | { | |
4c476991 | 3009 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 3010 | int err; |
4c476991 | 3011 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
3012 | struct mpath_info pinfo; |
3013 | struct sk_buff *msg; | |
3014 | u8 *dst = NULL; | |
3015 | u8 next_hop[ETH_ALEN]; | |
3016 | ||
3017 | memset(&pinfo, 0, sizeof(pinfo)); | |
3018 | ||
3019 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3020 | return -EINVAL; | |
3021 | ||
3022 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3023 | ||
4c476991 JB |
3024 | if (!rdev->ops->get_mpath) |
3025 | return -EOPNOTSUPP; | |
2ec600d6 | 3026 | |
4c476991 JB |
3027 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3028 | return -EOPNOTSUPP; | |
eec60b03 | 3029 | |
79c97e97 | 3030 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 3031 | if (err) |
4c476991 | 3032 | return err; |
2ec600d6 | 3033 | |
fd2120ca | 3034 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 3035 | if (!msg) |
4c476991 | 3036 | return -ENOMEM; |
2ec600d6 LCC |
3037 | |
3038 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
3039 | dev, dst, next_hop, &pinfo) < 0) { |
3040 | nlmsg_free(msg); | |
3041 | return -ENOBUFS; | |
3042 | } | |
3b85875a | 3043 | |
4c476991 | 3044 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
3045 | } |
3046 | ||
3047 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
3048 | { | |
4c476991 JB |
3049 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3050 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3051 | u8 *dst = NULL; |
3052 | u8 *next_hop = NULL; | |
3053 | ||
3054 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3055 | return -EINVAL; | |
3056 | ||
3057 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3058 | return -EINVAL; | |
3059 | ||
3060 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3061 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3062 | ||
4c476991 JB |
3063 | if (!rdev->ops->change_mpath) |
3064 | return -EOPNOTSUPP; | |
35a8efe1 | 3065 | |
4c476991 JB |
3066 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3067 | return -EOPNOTSUPP; | |
2ec600d6 | 3068 | |
4c476991 | 3069 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 3070 | } |
4c476991 | 3071 | |
2ec600d6 LCC |
3072 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
3073 | { | |
4c476991 JB |
3074 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3075 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3076 | u8 *dst = NULL; |
3077 | u8 *next_hop = NULL; | |
3078 | ||
3079 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3080 | return -EINVAL; | |
3081 | ||
3082 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
3083 | return -EINVAL; | |
3084 | ||
3085 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3086 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
3087 | ||
4c476991 JB |
3088 | if (!rdev->ops->add_mpath) |
3089 | return -EOPNOTSUPP; | |
35a8efe1 | 3090 | |
4c476991 JB |
3091 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
3092 | return -EOPNOTSUPP; | |
2ec600d6 | 3093 | |
4c476991 | 3094 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
3095 | } |
3096 | ||
3097 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
3098 | { | |
4c476991 JB |
3099 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3100 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
3101 | u8 *dst = NULL; |
3102 | ||
3103 | if (info->attrs[NL80211_ATTR_MAC]) | |
3104 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3105 | ||
4c476991 JB |
3106 | if (!rdev->ops->del_mpath) |
3107 | return -EOPNOTSUPP; | |
3b85875a | 3108 | |
4c476991 | 3109 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
3110 | } |
3111 | ||
9f1ba906 JM |
3112 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
3113 | { | |
4c476991 JB |
3114 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3115 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
3116 | struct bss_parameters params; |
3117 | ||
3118 | memset(¶ms, 0, sizeof(params)); | |
3119 | /* default to not changing parameters */ | |
3120 | params.use_cts_prot = -1; | |
3121 | params.use_short_preamble = -1; | |
3122 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 3123 | params.ap_isolate = -1; |
50b12f59 | 3124 | params.ht_opmode = -1; |
9f1ba906 JM |
3125 | |
3126 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
3127 | params.use_cts_prot = | |
3128 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
3129 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
3130 | params.use_short_preamble = | |
3131 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
3132 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
3133 | params.use_short_slot_time = | |
3134 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
3135 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3136 | params.basic_rates = | |
3137 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3138 | params.basic_rates_len = | |
3139 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3140 | } | |
fd8aaaf3 FF |
3141 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
3142 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
3143 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
3144 | params.ht_opmode = | |
3145 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 3146 | |
4c476991 JB |
3147 | if (!rdev->ops->change_bss) |
3148 | return -EOPNOTSUPP; | |
9f1ba906 | 3149 | |
074ac8df | 3150 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
3151 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
3152 | return -EOPNOTSUPP; | |
3b85875a | 3153 | |
4c476991 | 3154 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
3155 | } |
3156 | ||
b54452b0 | 3157 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
3158 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
3159 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
3160 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
3161 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
3162 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
3163 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
3164 | }; | |
3165 | ||
3166 | static int parse_reg_rule(struct nlattr *tb[], | |
3167 | struct ieee80211_reg_rule *reg_rule) | |
3168 | { | |
3169 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
3170 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
3171 | ||
3172 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
3173 | return -EINVAL; | |
3174 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
3175 | return -EINVAL; | |
3176 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
3177 | return -EINVAL; | |
3178 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
3179 | return -EINVAL; | |
3180 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
3181 | return -EINVAL; | |
3182 | ||
3183 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
3184 | ||
3185 | freq_range->start_freq_khz = | |
3186 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
3187 | freq_range->end_freq_khz = | |
3188 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
3189 | freq_range->max_bandwidth_khz = | |
3190 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
3191 | ||
3192 | power_rule->max_eirp = | |
3193 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
3194 | ||
3195 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
3196 | power_rule->max_antenna_gain = | |
3197 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
3198 | ||
3199 | return 0; | |
3200 | } | |
3201 | ||
3202 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
3203 | { | |
3204 | int r; | |
3205 | char *data = NULL; | |
3206 | ||
80778f18 LR |
3207 | /* |
3208 | * You should only get this when cfg80211 hasn't yet initialized | |
3209 | * completely when built-in to the kernel right between the time | |
3210 | * window between nl80211_init() and regulatory_init(), if that is | |
3211 | * even possible. | |
3212 | */ | |
3213 | mutex_lock(&cfg80211_mutex); | |
3214 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
3215 | mutex_unlock(&cfg80211_mutex); |
3216 | return -EINPROGRESS; | |
80778f18 | 3217 | } |
fe33eb39 | 3218 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 3219 | |
fe33eb39 LR |
3220 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
3221 | return -EINVAL; | |
b2e1b302 LR |
3222 | |
3223 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3224 | ||
fe33eb39 LR |
3225 | r = regulatory_hint_user(data); |
3226 | ||
b2e1b302 LR |
3227 | return r; |
3228 | } | |
3229 | ||
24bdd9f4 | 3230 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 3231 | struct genl_info *info) |
93da9cc1 | 3232 | { |
4c476991 | 3233 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 3234 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
3235 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
3236 | struct mesh_config cur_params; | |
3237 | int err = 0; | |
93da9cc1 | 3238 | void *hdr; |
3239 | struct nlattr *pinfoattr; | |
3240 | struct sk_buff *msg; | |
3241 | ||
29cbe68c JB |
3242 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3243 | return -EOPNOTSUPP; | |
3244 | ||
24bdd9f4 | 3245 | if (!rdev->ops->get_mesh_config) |
4c476991 | 3246 | return -EOPNOTSUPP; |
f3f92586 | 3247 | |
29cbe68c JB |
3248 | wdev_lock(wdev); |
3249 | /* If not connected, get default parameters */ | |
3250 | if (!wdev->mesh_id_len) | |
3251 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
3252 | else | |
24bdd9f4 | 3253 | err = rdev->ops->get_mesh_config(&rdev->wiphy, dev, |
29cbe68c JB |
3254 | &cur_params); |
3255 | wdev_unlock(wdev); | |
3256 | ||
93da9cc1 | 3257 | if (err) |
4c476991 | 3258 | return err; |
93da9cc1 | 3259 | |
3260 | /* Draw up a netlink message to send back */ | |
fd2120ca | 3261 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
3262 | if (!msg) |
3263 | return -ENOMEM; | |
93da9cc1 | 3264 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
24bdd9f4 | 3265 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 3266 | if (!hdr) |
efe1cf0c | 3267 | goto out; |
24bdd9f4 | 3268 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 3269 | if (!pinfoattr) |
3270 | goto nla_put_failure; | |
3271 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3272 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
3273 | cur_params.dot11MeshRetryTimeout); | |
3274 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
3275 | cur_params.dot11MeshConfirmTimeout); | |
3276 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
3277 | cur_params.dot11MeshHoldingTimeout); | |
3278 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
3279 | cur_params.dot11MeshMaxPeerLinks); | |
3280 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
3281 | cur_params.dot11MeshMaxRetries); | |
3282 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
3283 | cur_params.dot11MeshTTL); | |
45904f21 JC |
3284 | NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL, |
3285 | cur_params.element_ttl); | |
93da9cc1 | 3286 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
3287 | cur_params.auto_open_plinks); | |
3288 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
3289 | cur_params.dot11MeshHWMPmaxPREQretries); | |
3290 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
3291 | cur_params.path_refresh_time); | |
3292 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3293 | cur_params.min_discovery_timeout); | |
3294 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3295 | cur_params.dot11MeshHWMPactivePathTimeout); | |
3296 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3297 | cur_params.dot11MeshHWMPpreqMinInterval); | |
dca7e943 TP |
3298 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, |
3299 | cur_params.dot11MeshHWMPperrMinInterval); | |
93da9cc1 | 3300 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
3301 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
3302 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
3303 | cur_params.dot11MeshHWMPRootMode); | |
0507e159 JC |
3304 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, |
3305 | cur_params.dot11MeshHWMPRannInterval); | |
16dd7267 JC |
3306 | NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, |
3307 | cur_params.dot11MeshGateAnnouncementProtocol); | |
94f90656 CYY |
3308 | NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING, |
3309 | cur_params.dot11MeshForwarding); | |
55335137 AN |
3310 | NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, |
3311 | cur_params.rssi_threshold); | |
93da9cc1 | 3312 | nla_nest_end(msg, pinfoattr); |
3313 | genlmsg_end(msg, hdr); | |
4c476991 | 3314 | return genlmsg_reply(msg, info); |
93da9cc1 | 3315 | |
3b85875a | 3316 | nla_put_failure: |
93da9cc1 | 3317 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 3318 | out: |
d080e275 | 3319 | nlmsg_free(msg); |
4c476991 | 3320 | return -ENOBUFS; |
93da9cc1 | 3321 | } |
3322 | ||
b54452b0 | 3323 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 3324 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
3325 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
3326 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
3327 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
3328 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
3329 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 3330 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 3331 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
3332 | ||
3333 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
3334 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
3335 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
3336 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
3337 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 3338 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 3339 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 3340 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 3341 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 3342 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 3343 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
55335137 | 3344 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32}, |
93da9cc1 | 3345 | }; |
3346 | ||
c80d545d JC |
3347 | static const struct nla_policy |
3348 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
3349 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, | |
3350 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 3351 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
581a8b0f | 3352 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
c80d545d | 3353 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 3354 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
3355 | }; |
3356 | ||
24bdd9f4 | 3357 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
3358 | struct mesh_config *cfg, |
3359 | u32 *mask_out) | |
93da9cc1 | 3360 | { |
93da9cc1 | 3361 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 3362 | u32 mask = 0; |
93da9cc1 | 3363 | |
bd90fdcc JB |
3364 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ |
3365 | do {\ | |
3366 | if (table[attr_num]) {\ | |
3367 | cfg->param = nla_fn(table[attr_num]); \ | |
3368 | mask |= (1 << (attr_num - 1)); \ | |
3369 | } \ | |
3370 | } while (0);\ | |
3371 | ||
3372 | ||
24bdd9f4 | 3373 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 3374 | return -EINVAL; |
3375 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 3376 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 3377 | nl80211_meshconf_params_policy)) |
93da9cc1 | 3378 | return -EINVAL; |
3379 | ||
93da9cc1 | 3380 | /* This makes sure that there aren't more than 32 mesh config |
3381 | * parameters (otherwise our bitfield scheme would not work.) */ | |
3382 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
3383 | ||
3384 | /* Fill in the params struct */ | |
93da9cc1 | 3385 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, |
3386 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
3387 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
3388 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
3389 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
3390 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
3391 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
3392 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
3393 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
3394 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
3395 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
3396 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
45904f21 JC |
3397 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, |
3398 | mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8); | |
93da9cc1 | 3399 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, |
3400 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
3401 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
3402 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
3403 | nla_get_u8); | |
3404 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
3405 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
3406 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
3407 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
3408 | nla_get_u16); | |
3409 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
3410 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
3411 | nla_get_u32); | |
3412 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
3413 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
3414 | nla_get_u16); | |
dca7e943 TP |
3415 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
3416 | mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
3417 | nla_get_u16); | |
93da9cc1 | 3418 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3419 | dot11MeshHWMPnetDiameterTraversalTime, | |
3420 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
3421 | nla_get_u16); | |
63c5723b RP |
3422 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3423 | dot11MeshHWMPRootMode, mask, | |
3424 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
3425 | nla_get_u8); | |
0507e159 JC |
3426 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3427 | dot11MeshHWMPRannInterval, mask, | |
3428 | NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
3429 | nla_get_u16); | |
16dd7267 JC |
3430 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
3431 | dot11MeshGateAnnouncementProtocol, mask, | |
3432 | NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
3433 | nla_get_u8); | |
94f90656 CYY |
3434 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, |
3435 | mask, NL80211_MESHCONF_FORWARDING, nla_get_u8); | |
55335137 AN |
3436 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, |
3437 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32); | |
bd90fdcc JB |
3438 | if (mask_out) |
3439 | *mask_out = mask; | |
c80d545d | 3440 | |
bd90fdcc JB |
3441 | return 0; |
3442 | ||
3443 | #undef FILL_IN_MESH_PARAM_IF_SET | |
3444 | } | |
3445 | ||
c80d545d JC |
3446 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
3447 | struct mesh_setup *setup) | |
3448 | { | |
3449 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; | |
3450 | ||
3451 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
3452 | return -EINVAL; | |
3453 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
3454 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
3455 | nl80211_mesh_setup_params_policy)) | |
3456 | return -EINVAL; | |
3457 | ||
3458 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) | |
3459 | setup->path_sel_proto = | |
3460 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
3461 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
3462 | IEEE80211_PATH_PROTOCOL_HWMP; | |
3463 | ||
3464 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
3465 | setup->path_metric = | |
3466 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
3467 | IEEE80211_PATH_METRIC_VENDOR : | |
3468 | IEEE80211_PATH_METRIC_AIRTIME; | |
3469 | ||
581a8b0f JC |
3470 | |
3471 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 3472 | struct nlattr *ieattr = |
581a8b0f | 3473 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
3474 | if (!is_valid_ie_attr(ieattr)) |
3475 | return -EINVAL; | |
581a8b0f JC |
3476 | setup->ie = nla_data(ieattr); |
3477 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 3478 | } |
b130e5ce JC |
3479 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
3480 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
c80d545d JC |
3481 | |
3482 | return 0; | |
3483 | } | |
3484 | ||
24bdd9f4 | 3485 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 3486 | struct genl_info *info) |
bd90fdcc JB |
3487 | { |
3488 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3489 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 3490 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
3491 | struct mesh_config cfg; |
3492 | u32 mask; | |
3493 | int err; | |
3494 | ||
29cbe68c JB |
3495 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
3496 | return -EOPNOTSUPP; | |
3497 | ||
24bdd9f4 | 3498 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
3499 | return -EOPNOTSUPP; |
3500 | ||
24bdd9f4 | 3501 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
3502 | if (err) |
3503 | return err; | |
3504 | ||
29cbe68c JB |
3505 | wdev_lock(wdev); |
3506 | if (!wdev->mesh_id_len) | |
3507 | err = -ENOLINK; | |
3508 | ||
3509 | if (!err) | |
24bdd9f4 | 3510 | err = rdev->ops->update_mesh_config(&rdev->wiphy, dev, |
29cbe68c JB |
3511 | mask, &cfg); |
3512 | ||
3513 | wdev_unlock(wdev); | |
3514 | ||
3515 | return err; | |
93da9cc1 | 3516 | } |
3517 | ||
f130347c LR |
3518 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
3519 | { | |
3520 | struct sk_buff *msg; | |
3521 | void *hdr = NULL; | |
3522 | struct nlattr *nl_reg_rules; | |
3523 | unsigned int i; | |
3524 | int err = -EINVAL; | |
3525 | ||
a1794390 | 3526 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
3527 | |
3528 | if (!cfg80211_regdomain) | |
3529 | goto out; | |
3530 | ||
fd2120ca | 3531 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
3532 | if (!msg) { |
3533 | err = -ENOBUFS; | |
3534 | goto out; | |
3535 | } | |
3536 | ||
3537 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
3538 | NL80211_CMD_GET_REG); | |
3539 | if (!hdr) | |
efe1cf0c | 3540 | goto put_failure; |
f130347c LR |
3541 | |
3542 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
3543 | cfg80211_regdomain->alpha2); | |
8b60b078 LR |
3544 | if (cfg80211_regdomain->dfs_region) |
3545 | NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION, | |
3546 | cfg80211_regdomain->dfs_region); | |
f130347c LR |
3547 | |
3548 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
3549 | if (!nl_reg_rules) | |
3550 | goto nla_put_failure; | |
3551 | ||
3552 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
3553 | struct nlattr *nl_reg_rule; | |
3554 | const struct ieee80211_reg_rule *reg_rule; | |
3555 | const struct ieee80211_freq_range *freq_range; | |
3556 | const struct ieee80211_power_rule *power_rule; | |
3557 | ||
3558 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
3559 | freq_range = ®_rule->freq_range; | |
3560 | power_rule = ®_rule->power_rule; | |
3561 | ||
3562 | nl_reg_rule = nla_nest_start(msg, i); | |
3563 | if (!nl_reg_rule) | |
3564 | goto nla_put_failure; | |
3565 | ||
3566 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
3567 | reg_rule->flags); | |
3568 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
3569 | freq_range->start_freq_khz); | |
3570 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
3571 | freq_range->end_freq_khz); | |
3572 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
3573 | freq_range->max_bandwidth_khz); | |
3574 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
3575 | power_rule->max_antenna_gain); | |
3576 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
3577 | power_rule->max_eirp); | |
3578 | ||
3579 | nla_nest_end(msg, nl_reg_rule); | |
3580 | } | |
3581 | ||
3582 | nla_nest_end(msg, nl_reg_rules); | |
3583 | ||
3584 | genlmsg_end(msg, hdr); | |
134e6375 | 3585 | err = genlmsg_reply(msg, info); |
f130347c LR |
3586 | goto out; |
3587 | ||
3588 | nla_put_failure: | |
3589 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 3590 | put_failure: |
d080e275 | 3591 | nlmsg_free(msg); |
f130347c LR |
3592 | err = -EMSGSIZE; |
3593 | out: | |
a1794390 | 3594 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
3595 | return err; |
3596 | } | |
3597 | ||
b2e1b302 LR |
3598 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
3599 | { | |
3600 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
3601 | struct nlattr *nl_reg_rule; | |
3602 | char *alpha2 = NULL; | |
3603 | int rem_reg_rules = 0, r = 0; | |
3604 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
8b60b078 | 3605 | u8 dfs_region = 0; |
b2e1b302 LR |
3606 | struct ieee80211_regdomain *rd = NULL; |
3607 | ||
3608 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
3609 | return -EINVAL; | |
3610 | ||
3611 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
3612 | return -EINVAL; | |
3613 | ||
3614 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3615 | ||
8b60b078 LR |
3616 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
3617 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
3618 | ||
b2e1b302 LR |
3619 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
3620 | rem_reg_rules) { | |
3621 | num_rules++; | |
3622 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 3623 | return -EINVAL; |
b2e1b302 LR |
3624 | } |
3625 | ||
61405e97 LR |
3626 | mutex_lock(&cfg80211_mutex); |
3627 | ||
d0e18f83 LR |
3628 | if (!reg_is_valid_request(alpha2)) { |
3629 | r = -EINVAL; | |
3630 | goto bad_reg; | |
3631 | } | |
b2e1b302 LR |
3632 | |
3633 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
3634 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
3635 | ||
3636 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
3637 | if (!rd) { |
3638 | r = -ENOMEM; | |
3639 | goto bad_reg; | |
3640 | } | |
b2e1b302 LR |
3641 | |
3642 | rd->n_reg_rules = num_rules; | |
3643 | rd->alpha2[0] = alpha2[0]; | |
3644 | rd->alpha2[1] = alpha2[1]; | |
3645 | ||
8b60b078 LR |
3646 | /* |
3647 | * Disable DFS master mode if the DFS region was | |
3648 | * not supported or known on this kernel. | |
3649 | */ | |
3650 | if (reg_supported_dfs_region(dfs_region)) | |
3651 | rd->dfs_region = dfs_region; | |
3652 | ||
b2e1b302 LR |
3653 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
3654 | rem_reg_rules) { | |
3655 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
3656 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
3657 | reg_rule_policy); | |
3658 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
3659 | if (r) | |
3660 | goto bad_reg; | |
3661 | ||
3662 | rule_idx++; | |
3663 | ||
d0e18f83 LR |
3664 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
3665 | r = -EINVAL; | |
b2e1b302 | 3666 | goto bad_reg; |
d0e18f83 | 3667 | } |
b2e1b302 LR |
3668 | } |
3669 | ||
3670 | BUG_ON(rule_idx != num_rules); | |
3671 | ||
b2e1b302 | 3672 | r = set_regdom(rd); |
61405e97 | 3673 | |
a1794390 | 3674 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 3675 | |
b2e1b302 LR |
3676 | return r; |
3677 | ||
d2372b31 | 3678 | bad_reg: |
61405e97 | 3679 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 3680 | kfree(rd); |
d0e18f83 | 3681 | return r; |
b2e1b302 LR |
3682 | } |
3683 | ||
83f5e2cf JB |
3684 | static int validate_scan_freqs(struct nlattr *freqs) |
3685 | { | |
3686 | struct nlattr *attr1, *attr2; | |
3687 | int n_channels = 0, tmp1, tmp2; | |
3688 | ||
3689 | nla_for_each_nested(attr1, freqs, tmp1) { | |
3690 | n_channels++; | |
3691 | /* | |
3692 | * Some hardware has a limited channel list for | |
3693 | * scanning, and it is pretty much nonsensical | |
3694 | * to scan for a channel twice, so disallow that | |
3695 | * and don't require drivers to check that the | |
3696 | * channel list they get isn't longer than what | |
3697 | * they can scan, as long as they can scan all | |
3698 | * the channels they registered at once. | |
3699 | */ | |
3700 | nla_for_each_nested(attr2, freqs, tmp2) | |
3701 | if (attr1 != attr2 && | |
3702 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
3703 | return 0; | |
3704 | } | |
3705 | ||
3706 | return n_channels; | |
3707 | } | |
3708 | ||
2a519311 JB |
3709 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
3710 | { | |
4c476991 JB |
3711 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3712 | struct net_device *dev = info->user_ptr[1]; | |
2a519311 | 3713 | struct cfg80211_scan_request *request; |
2a519311 JB |
3714 | struct nlattr *attr; |
3715 | struct wiphy *wiphy; | |
83f5e2cf | 3716 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 3717 | size_t ie_len; |
2a519311 | 3718 | |
f4a11bb0 JB |
3719 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3720 | return -EINVAL; | |
3721 | ||
79c97e97 | 3722 | wiphy = &rdev->wiphy; |
2a519311 | 3723 | |
4c476991 JB |
3724 | if (!rdev->ops->scan) |
3725 | return -EOPNOTSUPP; | |
2a519311 | 3726 | |
4c476991 JB |
3727 | if (rdev->scan_req) |
3728 | return -EBUSY; | |
2a519311 JB |
3729 | |
3730 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
3731 | n_channels = validate_scan_freqs( |
3732 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
3733 | if (!n_channels) |
3734 | return -EINVAL; | |
2a519311 | 3735 | } else { |
34850ab2 | 3736 | enum ieee80211_band band; |
83f5e2cf JB |
3737 | n_channels = 0; |
3738 | ||
2a519311 JB |
3739 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
3740 | if (wiphy->bands[band]) | |
3741 | n_channels += wiphy->bands[band]->n_channels; | |
3742 | } | |
3743 | ||
3744 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
3745 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
3746 | n_ssids++; | |
3747 | ||
4c476991 JB |
3748 | if (n_ssids > wiphy->max_scan_ssids) |
3749 | return -EINVAL; | |
2a519311 | 3750 | |
70692ad2 JM |
3751 | if (info->attrs[NL80211_ATTR_IE]) |
3752 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3753 | else | |
3754 | ie_len = 0; | |
3755 | ||
4c476991 JB |
3756 | if (ie_len > wiphy->max_scan_ie_len) |
3757 | return -EINVAL; | |
18a83659 | 3758 | |
2a519311 | 3759 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
3760 | + sizeof(*request->ssids) * n_ssids |
3761 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 3762 | + ie_len, GFP_KERNEL); |
4c476991 JB |
3763 | if (!request) |
3764 | return -ENOMEM; | |
2a519311 | 3765 | |
2a519311 | 3766 | if (n_ssids) |
5ba63533 | 3767 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3768 | request->n_ssids = n_ssids; |
70692ad2 JM |
3769 | if (ie_len) { |
3770 | if (request->ssids) | |
3771 | request->ie = (void *)(request->ssids + n_ssids); | |
3772 | else | |
3773 | request->ie = (void *)(request->channels + n_channels); | |
3774 | } | |
2a519311 | 3775 | |
584991dc | 3776 | i = 0; |
2a519311 JB |
3777 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3778 | /* user specified, bail out if channel not found */ | |
2a519311 | 3779 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3780 | struct ieee80211_channel *chan; |
3781 | ||
3782 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3783 | ||
3784 | if (!chan) { | |
2a519311 JB |
3785 | err = -EINVAL; |
3786 | goto out_free; | |
3787 | } | |
584991dc JB |
3788 | |
3789 | /* ignore disabled channels */ | |
3790 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3791 | continue; | |
3792 | ||
3793 | request->channels[i] = chan; | |
2a519311 JB |
3794 | i++; |
3795 | } | |
3796 | } else { | |
34850ab2 JB |
3797 | enum ieee80211_band band; |
3798 | ||
2a519311 | 3799 | /* all channels */ |
2a519311 JB |
3800 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3801 | int j; | |
3802 | if (!wiphy->bands[band]) | |
3803 | continue; | |
3804 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3805 | struct ieee80211_channel *chan; |
3806 | ||
3807 | chan = &wiphy->bands[band]->channels[j]; | |
3808 | ||
3809 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3810 | continue; | |
3811 | ||
3812 | request->channels[i] = chan; | |
2a519311 JB |
3813 | i++; |
3814 | } | |
3815 | } | |
3816 | } | |
3817 | ||
584991dc JB |
3818 | if (!i) { |
3819 | err = -EINVAL; | |
3820 | goto out_free; | |
3821 | } | |
3822 | ||
3823 | request->n_channels = i; | |
3824 | ||
2a519311 JB |
3825 | i = 0; |
3826 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3827 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
57a27e1d | 3828 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
3829 | err = -EINVAL; |
3830 | goto out_free; | |
3831 | } | |
57a27e1d | 3832 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 3833 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
3834 | i++; |
3835 | } | |
3836 | } | |
3837 | ||
70692ad2 JM |
3838 | if (info->attrs[NL80211_ATTR_IE]) { |
3839 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3840 | memcpy((void *)request->ie, |
3841 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3842 | request->ie_len); |
3843 | } | |
3844 | ||
34850ab2 | 3845 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
3846 | if (wiphy->bands[i]) |
3847 | request->rates[i] = | |
3848 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
3849 | |
3850 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
3851 | nla_for_each_nested(attr, | |
3852 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
3853 | tmp) { | |
3854 | enum ieee80211_band band = nla_type(attr); | |
3855 | ||
84404623 | 3856 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
3857 | err = -EINVAL; |
3858 | goto out_free; | |
3859 | } | |
3860 | err = ieee80211_get_ratemask(wiphy->bands[band], | |
3861 | nla_data(attr), | |
3862 | nla_len(attr), | |
3863 | &request->rates[band]); | |
3864 | if (err) | |
3865 | goto out_free; | |
3866 | } | |
3867 | } | |
3868 | ||
e9f935e3 RM |
3869 | request->no_cck = |
3870 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
3871 | ||
463d0183 | 3872 | request->dev = dev; |
79c97e97 | 3873 | request->wiphy = &rdev->wiphy; |
2a519311 | 3874 | |
79c97e97 JB |
3875 | rdev->scan_req = request; |
3876 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3877 | |
463d0183 | 3878 | if (!err) { |
79c97e97 | 3879 | nl80211_send_scan_start(rdev, dev); |
463d0183 | 3880 | dev_hold(dev); |
4c476991 | 3881 | } else { |
2a519311 | 3882 | out_free: |
79c97e97 | 3883 | rdev->scan_req = NULL; |
2a519311 JB |
3884 | kfree(request); |
3885 | } | |
3b85875a | 3886 | |
2a519311 JB |
3887 | return err; |
3888 | } | |
3889 | ||
807f8a8c LC |
3890 | static int nl80211_start_sched_scan(struct sk_buff *skb, |
3891 | struct genl_info *info) | |
3892 | { | |
3893 | struct cfg80211_sched_scan_request *request; | |
3894 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3895 | struct net_device *dev = info->user_ptr[1]; | |
807f8a8c LC |
3896 | struct nlattr *attr; |
3897 | struct wiphy *wiphy; | |
a1f1c21c | 3898 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; |
bbe6ad6d | 3899 | u32 interval; |
807f8a8c LC |
3900 | enum ieee80211_band band; |
3901 | size_t ie_len; | |
a1f1c21c | 3902 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
807f8a8c LC |
3903 | |
3904 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
3905 | !rdev->ops->sched_scan_start) | |
3906 | return -EOPNOTSUPP; | |
3907 | ||
3908 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
3909 | return -EINVAL; | |
3910 | ||
bbe6ad6d LC |
3911 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
3912 | return -EINVAL; | |
3913 | ||
3914 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
3915 | if (interval == 0) | |
3916 | return -EINVAL; | |
3917 | ||
807f8a8c LC |
3918 | wiphy = &rdev->wiphy; |
3919 | ||
3920 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
3921 | n_channels = validate_scan_freqs( | |
3922 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
3923 | if (!n_channels) | |
3924 | return -EINVAL; | |
3925 | } else { | |
3926 | n_channels = 0; | |
3927 | ||
3928 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
3929 | if (wiphy->bands[band]) | |
3930 | n_channels += wiphy->bands[band]->n_channels; | |
3931 | } | |
3932 | ||
3933 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
3934 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
3935 | tmp) | |
3936 | n_ssids++; | |
3937 | ||
93b6aa69 | 3938 | if (n_ssids > wiphy->max_sched_scan_ssids) |
807f8a8c LC |
3939 | return -EINVAL; |
3940 | ||
a1f1c21c LC |
3941 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) |
3942 | nla_for_each_nested(attr, | |
3943 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
3944 | tmp) | |
3945 | n_match_sets++; | |
3946 | ||
3947 | if (n_match_sets > wiphy->max_match_sets) | |
3948 | return -EINVAL; | |
3949 | ||
807f8a8c LC |
3950 | if (info->attrs[NL80211_ATTR_IE]) |
3951 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3952 | else | |
3953 | ie_len = 0; | |
3954 | ||
5a865bad | 3955 | if (ie_len > wiphy->max_sched_scan_ie_len) |
807f8a8c LC |
3956 | return -EINVAL; |
3957 | ||
c10841ca LC |
3958 | mutex_lock(&rdev->sched_scan_mtx); |
3959 | ||
3960 | if (rdev->sched_scan_req) { | |
3961 | err = -EINPROGRESS; | |
3962 | goto out; | |
3963 | } | |
3964 | ||
807f8a8c | 3965 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 3966 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 3967 | + sizeof(*request->match_sets) * n_match_sets |
a2cd43c5 | 3968 | + sizeof(*request->channels) * n_channels |
807f8a8c | 3969 | + ie_len, GFP_KERNEL); |
c10841ca LC |
3970 | if (!request) { |
3971 | err = -ENOMEM; | |
3972 | goto out; | |
3973 | } | |
807f8a8c LC |
3974 | |
3975 | if (n_ssids) | |
3976 | request->ssids = (void *)&request->channels[n_channels]; | |
3977 | request->n_ssids = n_ssids; | |
3978 | if (ie_len) { | |
3979 | if (request->ssids) | |
3980 | request->ie = (void *)(request->ssids + n_ssids); | |
3981 | else | |
3982 | request->ie = (void *)(request->channels + n_channels); | |
3983 | } | |
3984 | ||
a1f1c21c LC |
3985 | if (n_match_sets) { |
3986 | if (request->ie) | |
3987 | request->match_sets = (void *)(request->ie + ie_len); | |
3988 | else if (request->ssids) | |
3989 | request->match_sets = | |
3990 | (void *)(request->ssids + n_ssids); | |
3991 | else | |
3992 | request->match_sets = | |
3993 | (void *)(request->channels + n_channels); | |
3994 | } | |
3995 | request->n_match_sets = n_match_sets; | |
3996 | ||
807f8a8c LC |
3997 | i = 0; |
3998 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
3999 | /* user specified, bail out if channel not found */ | |
4000 | nla_for_each_nested(attr, | |
4001 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
4002 | tmp) { | |
4003 | struct ieee80211_channel *chan; | |
4004 | ||
4005 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
4006 | ||
4007 | if (!chan) { | |
4008 | err = -EINVAL; | |
4009 | goto out_free; | |
4010 | } | |
4011 | ||
4012 | /* ignore disabled channels */ | |
4013 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4014 | continue; | |
4015 | ||
4016 | request->channels[i] = chan; | |
4017 | i++; | |
4018 | } | |
4019 | } else { | |
4020 | /* all channels */ | |
4021 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4022 | int j; | |
4023 | if (!wiphy->bands[band]) | |
4024 | continue; | |
4025 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
4026 | struct ieee80211_channel *chan; | |
4027 | ||
4028 | chan = &wiphy->bands[band]->channels[j]; | |
4029 | ||
4030 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
4031 | continue; | |
4032 | ||
4033 | request->channels[i] = chan; | |
4034 | i++; | |
4035 | } | |
4036 | } | |
4037 | } | |
4038 | ||
4039 | if (!i) { | |
4040 | err = -EINVAL; | |
4041 | goto out_free; | |
4042 | } | |
4043 | ||
4044 | request->n_channels = i; | |
4045 | ||
4046 | i = 0; | |
4047 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
4048 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
4049 | tmp) { | |
57a27e1d | 4050 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
4051 | err = -EINVAL; |
4052 | goto out_free; | |
4053 | } | |
57a27e1d | 4054 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
4055 | memcpy(request->ssids[i].ssid, nla_data(attr), |
4056 | nla_len(attr)); | |
807f8a8c LC |
4057 | i++; |
4058 | } | |
4059 | } | |
4060 | ||
a1f1c21c LC |
4061 | i = 0; |
4062 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
4063 | nla_for_each_nested(attr, | |
4064 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
4065 | tmp) { | |
4066 | struct nlattr *ssid; | |
4067 | ||
4068 | nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
4069 | nla_data(attr), nla_len(attr), | |
4070 | nl80211_match_policy); | |
4071 | ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID]; | |
4072 | if (ssid) { | |
4073 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { | |
4074 | err = -EINVAL; | |
4075 | goto out_free; | |
4076 | } | |
4077 | memcpy(request->match_sets[i].ssid.ssid, | |
4078 | nla_data(ssid), nla_len(ssid)); | |
4079 | request->match_sets[i].ssid.ssid_len = | |
4080 | nla_len(ssid); | |
4081 | } | |
4082 | i++; | |
4083 | } | |
4084 | } | |
4085 | ||
807f8a8c LC |
4086 | if (info->attrs[NL80211_ATTR_IE]) { |
4087 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4088 | memcpy((void *)request->ie, | |
4089 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
4090 | request->ie_len); | |
4091 | } | |
4092 | ||
4093 | request->dev = dev; | |
4094 | request->wiphy = &rdev->wiphy; | |
bbe6ad6d | 4095 | request->interval = interval; |
807f8a8c LC |
4096 | |
4097 | err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request); | |
4098 | if (!err) { | |
4099 | rdev->sched_scan_req = request; | |
4100 | nl80211_send_sched_scan(rdev, dev, | |
4101 | NL80211_CMD_START_SCHED_SCAN); | |
4102 | goto out; | |
4103 | } | |
4104 | ||
4105 | out_free: | |
4106 | kfree(request); | |
4107 | out: | |
c10841ca | 4108 | mutex_unlock(&rdev->sched_scan_mtx); |
807f8a8c LC |
4109 | return err; |
4110 | } | |
4111 | ||
4112 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
4113 | struct genl_info *info) | |
4114 | { | |
4115 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
c10841ca | 4116 | int err; |
807f8a8c LC |
4117 | |
4118 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
4119 | !rdev->ops->sched_scan_stop) | |
4120 | return -EOPNOTSUPP; | |
4121 | ||
c10841ca LC |
4122 | mutex_lock(&rdev->sched_scan_mtx); |
4123 | err = __cfg80211_stop_sched_scan(rdev, false); | |
4124 | mutex_unlock(&rdev->sched_scan_mtx); | |
4125 | ||
4126 | return err; | |
807f8a8c LC |
4127 | } |
4128 | ||
9720bb3a JB |
4129 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
4130 | u32 seq, int flags, | |
2a519311 | 4131 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
4132 | struct wireless_dev *wdev, |
4133 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 4134 | { |
48ab905d | 4135 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
4136 | void *hdr; |
4137 | struct nlattr *bss; | |
48ab905d JB |
4138 | |
4139 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 4140 | |
9720bb3a | 4141 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags, |
2a519311 JB |
4142 | NL80211_CMD_NEW_SCAN_RESULTS); |
4143 | if (!hdr) | |
4144 | return -1; | |
4145 | ||
9720bb3a JB |
4146 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
4147 | ||
f5ea9120 | 4148 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 4149 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
4150 | |
4151 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
4152 | if (!bss) | |
4153 | goto nla_put_failure; | |
4154 | if (!is_zero_ether_addr(res->bssid)) | |
4155 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
4156 | if (res->information_elements && res->len_information_elements) | |
4157 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
4158 | res->len_information_elements, | |
4159 | res->information_elements); | |
34a6eddb JM |
4160 | if (res->beacon_ies && res->len_beacon_ies && |
4161 | res->beacon_ies != res->information_elements) | |
4162 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
4163 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
4164 | if (res->tsf) |
4165 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
4166 | if (res->beacon_interval) | |
4167 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
4168 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
4169 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
4170 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
4171 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 4172 | |
77965c97 | 4173 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
4174 | case CFG80211_SIGNAL_TYPE_MBM: |
4175 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
4176 | break; | |
4177 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
4178 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
4179 | break; | |
4180 | default: | |
4181 | break; | |
4182 | } | |
4183 | ||
48ab905d | 4184 | switch (wdev->iftype) { |
074ac8df | 4185 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d JB |
4186 | case NL80211_IFTYPE_STATION: |
4187 | if (intbss == wdev->current_bss) | |
4188 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
4189 | NL80211_BSS_STATUS_ASSOCIATED); | |
48ab905d JB |
4190 | break; |
4191 | case NL80211_IFTYPE_ADHOC: | |
4192 | if (intbss == wdev->current_bss) | |
4193 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
4194 | NL80211_BSS_STATUS_IBSS_JOINED); | |
4195 | break; | |
4196 | default: | |
4197 | break; | |
4198 | } | |
4199 | ||
2a519311 JB |
4200 | nla_nest_end(msg, bss); |
4201 | ||
4202 | return genlmsg_end(msg, hdr); | |
4203 | ||
4204 | nla_put_failure: | |
4205 | genlmsg_cancel(msg, hdr); | |
4206 | return -EMSGSIZE; | |
4207 | } | |
4208 | ||
4209 | static int nl80211_dump_scan(struct sk_buff *skb, | |
4210 | struct netlink_callback *cb) | |
4211 | { | |
48ab905d JB |
4212 | struct cfg80211_registered_device *rdev; |
4213 | struct net_device *dev; | |
2a519311 | 4214 | struct cfg80211_internal_bss *scan; |
48ab905d | 4215 | struct wireless_dev *wdev; |
2a519311 JB |
4216 | int start = cb->args[1], idx = 0; |
4217 | int err; | |
4218 | ||
67748893 JB |
4219 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
4220 | if (err) | |
4221 | return err; | |
2a519311 | 4222 | |
48ab905d | 4223 | wdev = dev->ieee80211_ptr; |
2a519311 | 4224 | |
48ab905d JB |
4225 | wdev_lock(wdev); |
4226 | spin_lock_bh(&rdev->bss_lock); | |
4227 | cfg80211_bss_expire(rdev); | |
4228 | ||
9720bb3a JB |
4229 | cb->seq = rdev->bss_generation; |
4230 | ||
48ab905d | 4231 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
4232 | if (++idx <= start) |
4233 | continue; | |
9720bb3a | 4234 | if (nl80211_send_bss(skb, cb, |
2a519311 | 4235 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 4236 | rdev, wdev, scan) < 0) { |
2a519311 | 4237 | idx--; |
67748893 | 4238 | break; |
2a519311 JB |
4239 | } |
4240 | } | |
4241 | ||
48ab905d JB |
4242 | spin_unlock_bh(&rdev->bss_lock); |
4243 | wdev_unlock(wdev); | |
2a519311 JB |
4244 | |
4245 | cb->args[1] = idx; | |
67748893 | 4246 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 4247 | |
67748893 | 4248 | return skb->len; |
2a519311 JB |
4249 | } |
4250 | ||
61fa713c HS |
4251 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
4252 | int flags, struct net_device *dev, | |
4253 | struct survey_info *survey) | |
4254 | { | |
4255 | void *hdr; | |
4256 | struct nlattr *infoattr; | |
4257 | ||
61fa713c HS |
4258 | hdr = nl80211hdr_put(msg, pid, seq, flags, |
4259 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
4260 | if (!hdr) | |
4261 | return -ENOMEM; | |
4262 | ||
4263 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
4264 | ||
4265 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
4266 | if (!infoattr) | |
4267 | goto nla_put_failure; | |
4268 | ||
4269 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
4270 | survey->channel->center_freq); | |
4271 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
4272 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
4273 | survey->noise); | |
17e5a808 FF |
4274 | if (survey->filled & SURVEY_INFO_IN_USE) |
4275 | NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE); | |
8610c29a FF |
4276 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME) |
4277 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
4278 | survey->channel_time); | |
4279 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) | |
4280 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
4281 | survey->channel_time_busy); | |
4282 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) | |
4283 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
4284 | survey->channel_time_ext_busy); | |
4285 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) | |
4286 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
4287 | survey->channel_time_rx); | |
4288 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) | |
4289 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
4290 | survey->channel_time_tx); | |
61fa713c HS |
4291 | |
4292 | nla_nest_end(msg, infoattr); | |
4293 | ||
4294 | return genlmsg_end(msg, hdr); | |
4295 | ||
4296 | nla_put_failure: | |
4297 | genlmsg_cancel(msg, hdr); | |
4298 | return -EMSGSIZE; | |
4299 | } | |
4300 | ||
4301 | static int nl80211_dump_survey(struct sk_buff *skb, | |
4302 | struct netlink_callback *cb) | |
4303 | { | |
4304 | struct survey_info survey; | |
4305 | struct cfg80211_registered_device *dev; | |
4306 | struct net_device *netdev; | |
61fa713c HS |
4307 | int survey_idx = cb->args[1]; |
4308 | int res; | |
4309 | ||
67748893 JB |
4310 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
4311 | if (res) | |
4312 | return res; | |
61fa713c HS |
4313 | |
4314 | if (!dev->ops->dump_survey) { | |
4315 | res = -EOPNOTSUPP; | |
4316 | goto out_err; | |
4317 | } | |
4318 | ||
4319 | while (1) { | |
180cdc79 LR |
4320 | struct ieee80211_channel *chan; |
4321 | ||
61fa713c HS |
4322 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, |
4323 | &survey); | |
4324 | if (res == -ENOENT) | |
4325 | break; | |
4326 | if (res) | |
4327 | goto out_err; | |
4328 | ||
180cdc79 LR |
4329 | /* Survey without a channel doesn't make sense */ |
4330 | if (!survey.channel) { | |
4331 | res = -EINVAL; | |
4332 | goto out; | |
4333 | } | |
4334 | ||
4335 | chan = ieee80211_get_channel(&dev->wiphy, | |
4336 | survey.channel->center_freq); | |
4337 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
4338 | survey_idx++; | |
4339 | continue; | |
4340 | } | |
4341 | ||
61fa713c HS |
4342 | if (nl80211_send_survey(skb, |
4343 | NETLINK_CB(cb->skb).pid, | |
4344 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4345 | netdev, | |
4346 | &survey) < 0) | |
4347 | goto out; | |
4348 | survey_idx++; | |
4349 | } | |
4350 | ||
4351 | out: | |
4352 | cb->args[1] = survey_idx; | |
4353 | res = skb->len; | |
4354 | out_err: | |
67748893 | 4355 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
4356 | return res; |
4357 | } | |
4358 | ||
255e737e JM |
4359 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
4360 | { | |
b23aa676 SO |
4361 | return auth_type <= NL80211_AUTHTYPE_MAX; |
4362 | } | |
4363 | ||
4364 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
4365 | { | |
4366 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
4367 | NL80211_WPA_VERSION_2)); | |
4368 | } | |
4369 | ||
636a5d36 JM |
4370 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
4371 | { | |
4c476991 JB |
4372 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4373 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 JB |
4374 | struct ieee80211_channel *chan; |
4375 | const u8 *bssid, *ssid, *ie = NULL; | |
4376 | int err, ssid_len, ie_len = 0; | |
4377 | enum nl80211_auth_type auth_type; | |
fffd0934 | 4378 | struct key_parse key; |
d5cdfacb | 4379 | bool local_state_change; |
636a5d36 | 4380 | |
f4a11bb0 JB |
4381 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4382 | return -EINVAL; | |
4383 | ||
4384 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4385 | return -EINVAL; | |
4386 | ||
1778092e JM |
4387 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
4388 | return -EINVAL; | |
4389 | ||
19957bb3 JB |
4390 | if (!info->attrs[NL80211_ATTR_SSID]) |
4391 | return -EINVAL; | |
4392 | ||
4393 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4394 | return -EINVAL; | |
4395 | ||
fffd0934 JB |
4396 | err = nl80211_parse_key(info, &key); |
4397 | if (err) | |
4398 | return err; | |
4399 | ||
4400 | if (key.idx >= 0) { | |
e31b8213 JB |
4401 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
4402 | return -EINVAL; | |
fffd0934 JB |
4403 | if (!key.p.key || !key.p.key_len) |
4404 | return -EINVAL; | |
4405 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
4406 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
4407 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
4408 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
4409 | return -EINVAL; | |
4410 | if (key.idx > 4) | |
4411 | return -EINVAL; | |
4412 | } else { | |
4413 | key.p.key_len = 0; | |
4414 | key.p.key = NULL; | |
4415 | } | |
4416 | ||
afea0b7a JB |
4417 | if (key.idx >= 0) { |
4418 | int i; | |
4419 | bool ok = false; | |
4420 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
4421 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
4422 | ok = true; | |
4423 | break; | |
4424 | } | |
4425 | } | |
4c476991 JB |
4426 | if (!ok) |
4427 | return -EINVAL; | |
afea0b7a JB |
4428 | } |
4429 | ||
4c476991 JB |
4430 | if (!rdev->ops->auth) |
4431 | return -EOPNOTSUPP; | |
636a5d36 | 4432 | |
074ac8df | 4433 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4434 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4435 | return -EOPNOTSUPP; | |
eec60b03 | 4436 | |
19957bb3 | 4437 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 4438 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 4439 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
4440 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
4441 | return -EINVAL; | |
636a5d36 | 4442 | |
19957bb3 JB |
4443 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4444 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
4445 | |
4446 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4447 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4448 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4449 | } |
4450 | ||
19957bb3 | 4451 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
4c476991 JB |
4452 | if (!nl80211_valid_auth_type(auth_type)) |
4453 | return -EINVAL; | |
636a5d36 | 4454 | |
d5cdfacb JM |
4455 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
4456 | ||
95de817b JB |
4457 | /* |
4458 | * Since we no longer track auth state, ignore | |
4459 | * requests to only change local state. | |
4460 | */ | |
4461 | if (local_state_change) | |
4462 | return 0; | |
4463 | ||
4c476991 JB |
4464 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
4465 | ssid, ssid_len, ie, ie_len, | |
95de817b | 4466 | key.p.key, key.p.key_len, key.idx); |
636a5d36 JM |
4467 | } |
4468 | ||
c0692b8f JB |
4469 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
4470 | struct genl_info *info, | |
3dc27d25 JB |
4471 | struct cfg80211_crypto_settings *settings, |
4472 | int cipher_limit) | |
b23aa676 | 4473 | { |
c0b2bbd8 JB |
4474 | memset(settings, 0, sizeof(*settings)); |
4475 | ||
b23aa676 SO |
4476 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
4477 | ||
c0692b8f JB |
4478 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
4479 | u16 proto; | |
4480 | proto = nla_get_u16( | |
4481 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
4482 | settings->control_port_ethertype = cpu_to_be16(proto); | |
4483 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
4484 | proto != ETH_P_PAE) | |
4485 | return -EINVAL; | |
4486 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
4487 | settings->control_port_no_encrypt = true; | |
4488 | } else | |
4489 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
4490 | ||
b23aa676 SO |
4491 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
4492 | void *data; | |
4493 | int len, i; | |
4494 | ||
4495 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
4496 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
4497 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
4498 | ||
4499 | if (len % sizeof(u32)) | |
4500 | return -EINVAL; | |
4501 | ||
3dc27d25 | 4502 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
4503 | return -EINVAL; |
4504 | ||
4505 | memcpy(settings->ciphers_pairwise, data, len); | |
4506 | ||
4507 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
4508 | if (!cfg80211_supported_cipher_suite( |
4509 | &rdev->wiphy, | |
b23aa676 SO |
4510 | settings->ciphers_pairwise[i])) |
4511 | return -EINVAL; | |
4512 | } | |
4513 | ||
4514 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
4515 | settings->cipher_group = | |
4516 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
4517 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
4518 | settings->cipher_group)) | |
b23aa676 SO |
4519 | return -EINVAL; |
4520 | } | |
4521 | ||
4522 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
4523 | settings->wpa_versions = | |
4524 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
4525 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
4526 | return -EINVAL; | |
4527 | } | |
4528 | ||
4529 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
4530 | void *data; | |
6d30240e | 4531 | int len; |
b23aa676 SO |
4532 | |
4533 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
4534 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
4535 | settings->n_akm_suites = len / sizeof(u32); | |
4536 | ||
4537 | if (len % sizeof(u32)) | |
4538 | return -EINVAL; | |
4539 | ||
1b9ca027 JM |
4540 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
4541 | return -EINVAL; | |
4542 | ||
b23aa676 | 4543 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
4544 | } |
4545 | ||
4546 | return 0; | |
4547 | } | |
4548 | ||
636a5d36 JM |
4549 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
4550 | { | |
4c476991 JB |
4551 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4552 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4553 | struct cfg80211_crypto_settings crypto; |
f444de05 | 4554 | struct ieee80211_channel *chan; |
3e5d7649 | 4555 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
4556 | int err, ssid_len, ie_len = 0; |
4557 | bool use_mfp = false; | |
7e7c8926 BG |
4558 | u32 flags = 0; |
4559 | struct ieee80211_ht_cap *ht_capa = NULL; | |
4560 | struct ieee80211_ht_cap *ht_capa_mask = NULL; | |
636a5d36 | 4561 | |
f4a11bb0 JB |
4562 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4563 | return -EINVAL; | |
4564 | ||
4565 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
4566 | !info->attrs[NL80211_ATTR_SSID] || |
4567 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
4568 | return -EINVAL; |
4569 | ||
4c476991 JB |
4570 | if (!rdev->ops->assoc) |
4571 | return -EOPNOTSUPP; | |
636a5d36 | 4572 | |
074ac8df | 4573 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4574 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4575 | return -EOPNOTSUPP; | |
eec60b03 | 4576 | |
19957bb3 | 4577 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 4578 | |
19957bb3 JB |
4579 | chan = ieee80211_get_channel(&rdev->wiphy, |
4580 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
4581 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
4582 | return -EINVAL; | |
636a5d36 | 4583 | |
19957bb3 JB |
4584 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4585 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
4586 | |
4587 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4588 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4589 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4590 | } |
4591 | ||
dc6382ce | 4592 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 4593 | enum nl80211_mfp mfp = |
dc6382ce | 4594 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 4595 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 4596 | use_mfp = true; |
4c476991 JB |
4597 | else if (mfp != NL80211_MFP_NO) |
4598 | return -EINVAL; | |
dc6382ce JM |
4599 | } |
4600 | ||
3e5d7649 JB |
4601 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
4602 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
4603 | ||
7e7c8926 BG |
4604 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
4605 | flags |= ASSOC_REQ_DISABLE_HT; | |
4606 | ||
4607 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
4608 | ht_capa_mask = | |
4609 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]); | |
4610 | ||
4611 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
4612 | if (!ht_capa_mask) | |
4613 | return -EINVAL; | |
4614 | ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4615 | } | |
4616 | ||
c0692b8f | 4617 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 4618 | if (!err) |
3e5d7649 JB |
4619 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
4620 | ssid, ssid_len, ie, ie_len, use_mfp, | |
7e7c8926 BG |
4621 | &crypto, flags, ht_capa, |
4622 | ht_capa_mask); | |
636a5d36 | 4623 | |
636a5d36 JM |
4624 | return err; |
4625 | } | |
4626 | ||
4627 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
4628 | { | |
4c476991 JB |
4629 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4630 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4631 | const u8 *ie = NULL, *bssid; |
4c476991 | 4632 | int ie_len = 0; |
19957bb3 | 4633 | u16 reason_code; |
d5cdfacb | 4634 | bool local_state_change; |
636a5d36 | 4635 | |
f4a11bb0 JB |
4636 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4637 | return -EINVAL; | |
4638 | ||
4639 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4640 | return -EINVAL; | |
4641 | ||
4642 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4643 | return -EINVAL; | |
4644 | ||
4c476991 JB |
4645 | if (!rdev->ops->deauth) |
4646 | return -EOPNOTSUPP; | |
636a5d36 | 4647 | |
074ac8df | 4648 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4649 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4650 | return -EOPNOTSUPP; | |
eec60b03 | 4651 | |
19957bb3 | 4652 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 4653 | |
19957bb3 JB |
4654 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
4655 | if (reason_code == 0) { | |
f4a11bb0 | 4656 | /* Reason Code 0 is reserved */ |
4c476991 | 4657 | return -EINVAL; |
255e737e | 4658 | } |
636a5d36 JM |
4659 | |
4660 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4661 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4662 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4663 | } |
4664 | ||
d5cdfacb JM |
4665 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
4666 | ||
4c476991 JB |
4667 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
4668 | local_state_change); | |
636a5d36 JM |
4669 | } |
4670 | ||
4671 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
4672 | { | |
4c476991 JB |
4673 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4674 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 4675 | const u8 *ie = NULL, *bssid; |
4c476991 | 4676 | int ie_len = 0; |
19957bb3 | 4677 | u16 reason_code; |
d5cdfacb | 4678 | bool local_state_change; |
636a5d36 | 4679 | |
f4a11bb0 JB |
4680 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4681 | return -EINVAL; | |
4682 | ||
4683 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4684 | return -EINVAL; | |
4685 | ||
4686 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4687 | return -EINVAL; | |
4688 | ||
4c476991 JB |
4689 | if (!rdev->ops->disassoc) |
4690 | return -EOPNOTSUPP; | |
636a5d36 | 4691 | |
074ac8df | 4692 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4693 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4694 | return -EOPNOTSUPP; | |
eec60b03 | 4695 | |
19957bb3 | 4696 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 4697 | |
19957bb3 JB |
4698 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
4699 | if (reason_code == 0) { | |
f4a11bb0 | 4700 | /* Reason Code 0 is reserved */ |
4c476991 | 4701 | return -EINVAL; |
255e737e | 4702 | } |
636a5d36 JM |
4703 | |
4704 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
4705 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
4706 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
4707 | } |
4708 | ||
d5cdfacb JM |
4709 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
4710 | ||
4c476991 JB |
4711 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
4712 | local_state_change); | |
636a5d36 JM |
4713 | } |
4714 | ||
dd5b4cc7 FF |
4715 | static bool |
4716 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
4717 | int mcast_rate[IEEE80211_NUM_BANDS], | |
4718 | int rateval) | |
4719 | { | |
4720 | struct wiphy *wiphy = &rdev->wiphy; | |
4721 | bool found = false; | |
4722 | int band, i; | |
4723 | ||
4724 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
4725 | struct ieee80211_supported_band *sband; | |
4726 | ||
4727 | sband = wiphy->bands[band]; | |
4728 | if (!sband) | |
4729 | continue; | |
4730 | ||
4731 | for (i = 0; i < sband->n_bitrates; i++) { | |
4732 | if (sband->bitrates[i].bitrate == rateval) { | |
4733 | mcast_rate[band] = i + 1; | |
4734 | found = true; | |
4735 | break; | |
4736 | } | |
4737 | } | |
4738 | } | |
4739 | ||
4740 | return found; | |
4741 | } | |
4742 | ||
04a773ad JB |
4743 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
4744 | { | |
4c476991 JB |
4745 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4746 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
4747 | struct cfg80211_ibss_params ibss; |
4748 | struct wiphy *wiphy; | |
fffd0934 | 4749 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
4750 | int err; |
4751 | ||
8e30bc55 JB |
4752 | memset(&ibss, 0, sizeof(ibss)); |
4753 | ||
04a773ad JB |
4754 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4755 | return -EINVAL; | |
4756 | ||
4757 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4758 | !info->attrs[NL80211_ATTR_SSID] || | |
4759 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4760 | return -EINVAL; | |
4761 | ||
8e30bc55 JB |
4762 | ibss.beacon_interval = 100; |
4763 | ||
4764 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
4765 | ibss.beacon_interval = | |
4766 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
4767 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
4768 | return -EINVAL; | |
4769 | } | |
4770 | ||
4c476991 JB |
4771 | if (!rdev->ops->join_ibss) |
4772 | return -EOPNOTSUPP; | |
04a773ad | 4773 | |
4c476991 JB |
4774 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
4775 | return -EOPNOTSUPP; | |
04a773ad | 4776 | |
79c97e97 | 4777 | wiphy = &rdev->wiphy; |
04a773ad | 4778 | |
39193498 | 4779 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 4780 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
4781 | |
4782 | if (!is_valid_ether_addr(ibss.bssid)) | |
4783 | return -EINVAL; | |
4784 | } | |
04a773ad JB |
4785 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
4786 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4787 | ||
4788 | if (info->attrs[NL80211_ATTR_IE]) { | |
4789 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4790 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4791 | } | |
4792 | ||
54858ee5 AS |
4793 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4794 | enum nl80211_channel_type channel_type; | |
4795 | ||
4796 | channel_type = nla_get_u32( | |
4797 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4798 | if (channel_type != NL80211_CHAN_NO_HT && | |
4799 | channel_type != NL80211_CHAN_HT20 && | |
4800 | channel_type != NL80211_CHAN_HT40MINUS && | |
4801 | channel_type != NL80211_CHAN_HT40PLUS) | |
4802 | return -EINVAL; | |
4803 | ||
4804 | if (channel_type != NL80211_CHAN_NO_HT && | |
4805 | !(wiphy->features & NL80211_FEATURE_HT_IBSS)) | |
4806 | return -EINVAL; | |
4807 | ||
4808 | ibss.channel_type = channel_type; | |
4809 | } else { | |
4810 | ibss.channel_type = NL80211_CHAN_NO_HT; | |
4811 | } | |
4812 | ||
4813 | ibss.channel = rdev_freq_to_chan(rdev, | |
4814 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), | |
4815 | ibss.channel_type); | |
04a773ad JB |
4816 | if (!ibss.channel || |
4817 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
4818 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
4819 | return -EINVAL; | |
04a773ad | 4820 | |
54858ee5 AS |
4821 | /* Both channels should be able to initiate communication */ |
4822 | if ((ibss.channel_type == NL80211_CHAN_HT40PLUS || | |
4823 | ibss.channel_type == NL80211_CHAN_HT40MINUS) && | |
4824 | !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel, | |
4825 | ibss.channel_type)) | |
4826 | return -EINVAL; | |
4827 | ||
04a773ad | 4828 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
4829 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
4830 | ||
fbd2c8dc TP |
4831 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4832 | u8 *rates = | |
4833 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4834 | int n_rates = | |
4835 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4836 | struct ieee80211_supported_band *sband = | |
4837 | wiphy->bands[ibss.channel->band]; | |
fbd2c8dc | 4838 | |
34850ab2 JB |
4839 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
4840 | &ibss.basic_rates); | |
4841 | if (err) | |
4842 | return err; | |
fbd2c8dc | 4843 | } |
dd5b4cc7 FF |
4844 | |
4845 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
4846 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
4847 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
4848 | return -EINVAL; | |
fbd2c8dc | 4849 | |
4c476991 JB |
4850 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
4851 | connkeys = nl80211_parse_connkeys(rdev, | |
4852 | info->attrs[NL80211_ATTR_KEYS]); | |
4853 | if (IS_ERR(connkeys)) | |
4854 | return PTR_ERR(connkeys); | |
4855 | } | |
04a773ad | 4856 | |
267335d6 AQ |
4857 | ibss.control_port = |
4858 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
4859 | ||
4c476991 | 4860 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
4861 | if (err) |
4862 | kfree(connkeys); | |
04a773ad JB |
4863 | return err; |
4864 | } | |
4865 | ||
4866 | static int nl80211_leave_ibss(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]; | |
04a773ad | 4870 | |
4c476991 JB |
4871 | if (!rdev->ops->leave_ibss) |
4872 | return -EOPNOTSUPP; | |
04a773ad | 4873 | |
4c476991 JB |
4874 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
4875 | return -EOPNOTSUPP; | |
04a773ad | 4876 | |
4c476991 | 4877 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
4878 | } |
4879 | ||
aff89a9b JB |
4880 | #ifdef CONFIG_NL80211_TESTMODE |
4881 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
4882 | .name = "testmode", | |
4883 | }; | |
4884 | ||
4885 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
4886 | { | |
4c476991 | 4887 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
4888 | int err; |
4889 | ||
4890 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
4891 | return -EINVAL; | |
4892 | ||
aff89a9b JB |
4893 | err = -EOPNOTSUPP; |
4894 | if (rdev->ops->testmode_cmd) { | |
4895 | rdev->testmode_info = info; | |
4896 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
4897 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
4898 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
4899 | rdev->testmode_info = NULL; | |
4900 | } | |
4901 | ||
aff89a9b JB |
4902 | return err; |
4903 | } | |
4904 | ||
71063f0e WYG |
4905 | static int nl80211_testmode_dump(struct sk_buff *skb, |
4906 | struct netlink_callback *cb) | |
4907 | { | |
00918d33 | 4908 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
4909 | int err; |
4910 | long phy_idx; | |
4911 | void *data = NULL; | |
4912 | int data_len = 0; | |
4913 | ||
4914 | if (cb->args[0]) { | |
4915 | /* | |
4916 | * 0 is a valid index, but not valid for args[0], | |
4917 | * so we need to offset by 1. | |
4918 | */ | |
4919 | phy_idx = cb->args[0] - 1; | |
4920 | } else { | |
4921 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
4922 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
4923 | nl80211_policy); | |
4924 | if (err) | |
4925 | return err; | |
00918d33 JB |
4926 | if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) { |
4927 | phy_idx = nla_get_u32( | |
4928 | nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]); | |
4929 | } else { | |
4930 | struct net_device *netdev; | |
4931 | ||
4932 | err = get_rdev_dev_by_ifindex(sock_net(skb->sk), | |
4933 | nl80211_fam.attrbuf, | |
4934 | &rdev, &netdev); | |
4935 | if (err) | |
4936 | return err; | |
4937 | dev_put(netdev); | |
4938 | phy_idx = rdev->wiphy_idx; | |
4939 | cfg80211_unlock_rdev(rdev); | |
4940 | } | |
71063f0e WYG |
4941 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
4942 | cb->args[1] = | |
4943 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
4944 | } | |
4945 | ||
4946 | if (cb->args[1]) { | |
4947 | data = nla_data((void *)cb->args[1]); | |
4948 | data_len = nla_len((void *)cb->args[1]); | |
4949 | } | |
4950 | ||
4951 | mutex_lock(&cfg80211_mutex); | |
00918d33 JB |
4952 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
4953 | if (!rdev) { | |
71063f0e WYG |
4954 | mutex_unlock(&cfg80211_mutex); |
4955 | return -ENOENT; | |
4956 | } | |
00918d33 | 4957 | cfg80211_lock_rdev(rdev); |
71063f0e WYG |
4958 | mutex_unlock(&cfg80211_mutex); |
4959 | ||
00918d33 | 4960 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
4961 | err = -EOPNOTSUPP; |
4962 | goto out_err; | |
4963 | } | |
4964 | ||
4965 | while (1) { | |
4966 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid, | |
4967 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4968 | NL80211_CMD_TESTMODE); | |
4969 | struct nlattr *tmdata; | |
4970 | ||
00918d33 | 4971 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) { |
71063f0e WYG |
4972 | genlmsg_cancel(skb, hdr); |
4973 | break; | |
4974 | } | |
4975 | ||
4976 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
4977 | if (!tmdata) { | |
4978 | genlmsg_cancel(skb, hdr); | |
4979 | break; | |
4980 | } | |
00918d33 JB |
4981 | err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb, |
4982 | data, data_len); | |
71063f0e WYG |
4983 | nla_nest_end(skb, tmdata); |
4984 | ||
4985 | if (err == -ENOBUFS || err == -ENOENT) { | |
4986 | genlmsg_cancel(skb, hdr); | |
4987 | break; | |
4988 | } else if (err) { | |
4989 | genlmsg_cancel(skb, hdr); | |
4990 | goto out_err; | |
4991 | } | |
4992 | ||
4993 | genlmsg_end(skb, hdr); | |
4994 | } | |
4995 | ||
4996 | err = skb->len; | |
4997 | /* see above */ | |
4998 | cb->args[0] = phy_idx + 1; | |
4999 | out_err: | |
00918d33 | 5000 | cfg80211_unlock_rdev(rdev); |
71063f0e WYG |
5001 | return err; |
5002 | } | |
5003 | ||
aff89a9b JB |
5004 | static struct sk_buff * |
5005 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
5006 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
5007 | { | |
5008 | struct sk_buff *skb; | |
5009 | void *hdr; | |
5010 | struct nlattr *data; | |
5011 | ||
5012 | skb = nlmsg_new(approxlen + 100, gfp); | |
5013 | if (!skb) | |
5014 | return NULL; | |
5015 | ||
5016 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
5017 | if (!hdr) { | |
5018 | kfree_skb(skb); | |
5019 | return NULL; | |
5020 | } | |
5021 | ||
5022 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5023 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
5024 | ||
5025 | ((void **)skb->cb)[0] = rdev; | |
5026 | ((void **)skb->cb)[1] = hdr; | |
5027 | ((void **)skb->cb)[2] = data; | |
5028 | ||
5029 | return skb; | |
5030 | ||
5031 | nla_put_failure: | |
5032 | kfree_skb(skb); | |
5033 | return NULL; | |
5034 | } | |
5035 | ||
5036 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
5037 | int approxlen) | |
5038 | { | |
5039 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5040 | ||
5041 | if (WARN_ON(!rdev->testmode_info)) | |
5042 | return NULL; | |
5043 | ||
5044 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
5045 | rdev->testmode_info->snd_pid, | |
5046 | rdev->testmode_info->snd_seq, | |
5047 | GFP_KERNEL); | |
5048 | } | |
5049 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
5050 | ||
5051 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
5052 | { | |
5053 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
5054 | void *hdr = ((void **)skb->cb)[1]; | |
5055 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5056 | ||
5057 | if (WARN_ON(!rdev->testmode_info)) { | |
5058 | kfree_skb(skb); | |
5059 | return -EINVAL; | |
5060 | } | |
5061 | ||
5062 | nla_nest_end(skb, data); | |
5063 | genlmsg_end(skb, hdr); | |
5064 | return genlmsg_reply(skb, rdev->testmode_info); | |
5065 | } | |
5066 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
5067 | ||
5068 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
5069 | int approxlen, gfp_t gfp) | |
5070 | { | |
5071 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
5072 | ||
5073 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
5074 | } | |
5075 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
5076 | ||
5077 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
5078 | { | |
5079 | void *hdr = ((void **)skb->cb)[1]; | |
5080 | struct nlattr *data = ((void **)skb->cb)[2]; | |
5081 | ||
5082 | nla_nest_end(skb, data); | |
5083 | genlmsg_end(skb, hdr); | |
5084 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
5085 | } | |
5086 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
5087 | #endif | |
5088 | ||
b23aa676 SO |
5089 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
5090 | { | |
4c476991 JB |
5091 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5092 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5093 | struct cfg80211_connect_params connect; |
5094 | struct wiphy *wiphy; | |
fffd0934 | 5095 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
5096 | int err; |
5097 | ||
5098 | memset(&connect, 0, sizeof(connect)); | |
5099 | ||
5100 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5101 | return -EINVAL; | |
5102 | ||
5103 | if (!info->attrs[NL80211_ATTR_SSID] || | |
5104 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
5105 | return -EINVAL; | |
5106 | ||
5107 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
5108 | connect.auth_type = | |
5109 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
5110 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
5111 | return -EINVAL; | |
5112 | } else | |
5113 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
5114 | ||
5115 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
5116 | ||
c0692b8f | 5117 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 5118 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
5119 | if (err) |
5120 | return err; | |
b23aa676 | 5121 | |
074ac8df | 5122 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5123 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5124 | return -EOPNOTSUPP; | |
b23aa676 | 5125 | |
79c97e97 | 5126 | wiphy = &rdev->wiphy; |
b23aa676 | 5127 | |
4486ea98 BS |
5128 | connect.bg_scan_period = -1; |
5129 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
5130 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
5131 | connect.bg_scan_period = | |
5132 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
5133 | } | |
5134 | ||
b23aa676 SO |
5135 | if (info->attrs[NL80211_ATTR_MAC]) |
5136 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5137 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
5138 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
5139 | ||
5140 | if (info->attrs[NL80211_ATTR_IE]) { | |
5141 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
5142 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5143 | } | |
5144 | ||
5145 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
5146 | connect.channel = | |
5147 | ieee80211_get_channel(wiphy, | |
5148 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
5149 | if (!connect.channel || | |
4c476991 JB |
5150 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
5151 | return -EINVAL; | |
b23aa676 SO |
5152 | } |
5153 | ||
fffd0934 JB |
5154 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
5155 | connkeys = nl80211_parse_connkeys(rdev, | |
5156 | info->attrs[NL80211_ATTR_KEYS]); | |
4c476991 JB |
5157 | if (IS_ERR(connkeys)) |
5158 | return PTR_ERR(connkeys); | |
fffd0934 JB |
5159 | } |
5160 | ||
7e7c8926 BG |
5161 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
5162 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
5163 | ||
5164 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5165 | memcpy(&connect.ht_capa_mask, | |
5166 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
5167 | sizeof(connect.ht_capa_mask)); | |
5168 | ||
5169 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
5170 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
5171 | return -EINVAL; | |
5172 | memcpy(&connect.ht_capa, | |
5173 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
5174 | sizeof(connect.ht_capa)); | |
5175 | } | |
5176 | ||
fffd0934 | 5177 | err = cfg80211_connect(rdev, dev, &connect, connkeys); |
fffd0934 JB |
5178 | if (err) |
5179 | kfree(connkeys); | |
b23aa676 SO |
5180 | return err; |
5181 | } | |
5182 | ||
5183 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
5184 | { | |
4c476991 JB |
5185 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5186 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
5187 | u16 reason; |
5188 | ||
5189 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
5190 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
5191 | else | |
5192 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
5193 | ||
5194 | if (reason == 0) | |
5195 | return -EINVAL; | |
5196 | ||
074ac8df | 5197 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5198 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5199 | return -EOPNOTSUPP; | |
b23aa676 | 5200 | |
4c476991 | 5201 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
5202 | } |
5203 | ||
463d0183 JB |
5204 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
5205 | { | |
4c476991 | 5206 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
5207 | struct net *net; |
5208 | int err; | |
5209 | u32 pid; | |
5210 | ||
5211 | if (!info->attrs[NL80211_ATTR_PID]) | |
5212 | return -EINVAL; | |
5213 | ||
5214 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
5215 | ||
463d0183 | 5216 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
5217 | if (IS_ERR(net)) |
5218 | return PTR_ERR(net); | |
463d0183 JB |
5219 | |
5220 | err = 0; | |
5221 | ||
5222 | /* check if anything to do */ | |
4c476991 JB |
5223 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
5224 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 5225 | |
463d0183 | 5226 | put_net(net); |
463d0183 JB |
5227 | return err; |
5228 | } | |
5229 | ||
67fbb16b SO |
5230 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
5231 | { | |
4c476991 | 5232 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
5233 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
5234 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 5235 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
5236 | struct cfg80211_pmksa pmksa; |
5237 | ||
5238 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
5239 | ||
5240 | if (!info->attrs[NL80211_ATTR_MAC]) | |
5241 | return -EINVAL; | |
5242 | ||
5243 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
5244 | return -EINVAL; | |
5245 | ||
67fbb16b SO |
5246 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
5247 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5248 | ||
074ac8df | 5249 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5250 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5251 | return -EOPNOTSUPP; | |
67fbb16b SO |
5252 | |
5253 | switch (info->genlhdr->cmd) { | |
5254 | case NL80211_CMD_SET_PMKSA: | |
5255 | rdev_ops = rdev->ops->set_pmksa; | |
5256 | break; | |
5257 | case NL80211_CMD_DEL_PMKSA: | |
5258 | rdev_ops = rdev->ops->del_pmksa; | |
5259 | break; | |
5260 | default: | |
5261 | WARN_ON(1); | |
5262 | break; | |
5263 | } | |
5264 | ||
4c476991 JB |
5265 | if (!rdev_ops) |
5266 | return -EOPNOTSUPP; | |
67fbb16b | 5267 | |
4c476991 | 5268 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
5269 | } |
5270 | ||
5271 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
5272 | { | |
4c476991 JB |
5273 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5274 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 5275 | |
074ac8df | 5276 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5277 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5278 | return -EOPNOTSUPP; | |
67fbb16b | 5279 | |
4c476991 JB |
5280 | if (!rdev->ops->flush_pmksa) |
5281 | return -EOPNOTSUPP; | |
67fbb16b | 5282 | |
4c476991 | 5283 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
5284 | } |
5285 | ||
109086ce AN |
5286 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
5287 | { | |
5288 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5289 | struct net_device *dev = info->user_ptr[1]; | |
5290 | u8 action_code, dialog_token; | |
5291 | u16 status_code; | |
5292 | u8 *peer; | |
5293 | ||
5294 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5295 | !rdev->ops->tdls_mgmt) | |
5296 | return -EOPNOTSUPP; | |
5297 | ||
5298 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
5299 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
5300 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
5301 | !info->attrs[NL80211_ATTR_IE] || | |
5302 | !info->attrs[NL80211_ATTR_MAC]) | |
5303 | return -EINVAL; | |
5304 | ||
5305 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5306 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
5307 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
5308 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
5309 | ||
5310 | return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code, | |
5311 | dialog_token, status_code, | |
5312 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5313 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
5314 | } | |
5315 | ||
5316 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
5317 | { | |
5318 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5319 | struct net_device *dev = info->user_ptr[1]; | |
5320 | enum nl80211_tdls_operation operation; | |
5321 | u8 *peer; | |
5322 | ||
5323 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
5324 | !rdev->ops->tdls_oper) | |
5325 | return -EOPNOTSUPP; | |
5326 | ||
5327 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
5328 | !info->attrs[NL80211_ATTR_MAC]) | |
5329 | return -EINVAL; | |
5330 | ||
5331 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
5332 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
5333 | ||
5334 | return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation); | |
5335 | } | |
5336 | ||
9588bbd5 JM |
5337 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
5338 | struct genl_info *info) | |
5339 | { | |
4c476991 JB |
5340 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5341 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 JM |
5342 | struct ieee80211_channel *chan; |
5343 | struct sk_buff *msg; | |
5344 | void *hdr; | |
5345 | u64 cookie; | |
5346 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
5347 | u32 freq, duration; | |
5348 | int err; | |
5349 | ||
5350 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5351 | !info->attrs[NL80211_ATTR_DURATION]) | |
5352 | return -EINVAL; | |
5353 | ||
5354 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
5355 | ||
5356 | /* | |
5357 | * We should be on that channel for at least one jiffie, | |
5358 | * and more than 5 seconds seems excessive. | |
5359 | */ | |
a293911d JB |
5360 | if (!duration || !msecs_to_jiffies(duration) || |
5361 | duration > rdev->wiphy.max_remain_on_channel_duration) | |
9588bbd5 JM |
5362 | return -EINVAL; |
5363 | ||
7c4ef712 JB |
5364 | if (!rdev->ops->remain_on_channel || |
5365 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
4c476991 | 5366 | return -EOPNOTSUPP; |
9588bbd5 | 5367 | |
9588bbd5 JM |
5368 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
5369 | channel_type = nla_get_u32( | |
5370 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
5371 | if (channel_type != NL80211_CHAN_NO_HT && | |
5372 | channel_type != NL80211_CHAN_HT20 && | |
5373 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
5374 | channel_type != NL80211_CHAN_HT40MINUS) |
5375 | return -EINVAL; | |
9588bbd5 JM |
5376 | } |
5377 | ||
5378 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
5379 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
5380 | if (chan == NULL) |
5381 | return -EINVAL; | |
9588bbd5 JM |
5382 | |
5383 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
5384 | if (!msg) |
5385 | return -ENOMEM; | |
9588bbd5 JM |
5386 | |
5387 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5388 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
5389 | ||
5390 | if (IS_ERR(hdr)) { | |
5391 | err = PTR_ERR(hdr); | |
5392 | goto free_msg; | |
5393 | } | |
5394 | ||
5395 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
5396 | channel_type, duration, &cookie); | |
5397 | ||
5398 | if (err) | |
5399 | goto free_msg; | |
5400 | ||
5401 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5402 | ||
5403 | genlmsg_end(msg, hdr); | |
4c476991 JB |
5404 | |
5405 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
5406 | |
5407 | nla_put_failure: | |
5408 | err = -ENOBUFS; | |
5409 | free_msg: | |
5410 | nlmsg_free(msg); | |
9588bbd5 JM |
5411 | return err; |
5412 | } | |
5413 | ||
5414 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
5415 | struct genl_info *info) | |
5416 | { | |
4c476991 JB |
5417 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5418 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 | 5419 | u64 cookie; |
9588bbd5 JM |
5420 | |
5421 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5422 | return -EINVAL; | |
5423 | ||
4c476991 JB |
5424 | if (!rdev->ops->cancel_remain_on_channel) |
5425 | return -EOPNOTSUPP; | |
9588bbd5 | 5426 | |
9588bbd5 JM |
5427 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
5428 | ||
4c476991 | 5429 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); |
9588bbd5 JM |
5430 | } |
5431 | ||
13ae75b1 JM |
5432 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
5433 | u8 *rates, u8 rates_len) | |
5434 | { | |
5435 | u8 i; | |
5436 | u32 mask = 0; | |
5437 | ||
5438 | for (i = 0; i < rates_len; i++) { | |
5439 | int rate = (rates[i] & 0x7f) * 5; | |
5440 | int ridx; | |
5441 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
5442 | struct ieee80211_rate *srate = | |
5443 | &sband->bitrates[ridx]; | |
5444 | if (rate == srate->bitrate) { | |
5445 | mask |= 1 << ridx; | |
5446 | break; | |
5447 | } | |
5448 | } | |
5449 | if (ridx == sband->n_bitrates) | |
5450 | return 0; /* rate not found */ | |
5451 | } | |
5452 | ||
5453 | return mask; | |
5454 | } | |
5455 | ||
24db78c0 SW |
5456 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
5457 | u8 *rates, u8 rates_len, | |
5458 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
5459 | { | |
5460 | u8 i; | |
5461 | ||
5462 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
5463 | ||
5464 | for (i = 0; i < rates_len; i++) { | |
5465 | int ridx, rbit; | |
5466 | ||
5467 | ridx = rates[i] / 8; | |
5468 | rbit = BIT(rates[i] % 8); | |
5469 | ||
5470 | /* check validity */ | |
910570b5 | 5471 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
5472 | return false; |
5473 | ||
5474 | /* check availability */ | |
5475 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
5476 | mcs[ridx] |= rbit; | |
5477 | else | |
5478 | return false; | |
5479 | } | |
5480 | ||
5481 | return true; | |
5482 | } | |
5483 | ||
b54452b0 | 5484 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
5485 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
5486 | .len = NL80211_MAX_SUPP_RATES }, | |
24db78c0 SW |
5487 | [NL80211_TXRATE_MCS] = { .type = NLA_BINARY, |
5488 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
13ae75b1 JM |
5489 | }; |
5490 | ||
5491 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
5492 | struct genl_info *info) | |
5493 | { | |
5494 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 5495 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 5496 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
5497 | int rem, i; |
5498 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
5499 | struct nlattr *tx_rates; |
5500 | struct ieee80211_supported_band *sband; | |
5501 | ||
5502 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
5503 | return -EINVAL; | |
5504 | ||
4c476991 JB |
5505 | if (!rdev->ops->set_bitrate_mask) |
5506 | return -EOPNOTSUPP; | |
13ae75b1 JM |
5507 | |
5508 | memset(&mask, 0, sizeof(mask)); | |
5509 | /* Default to all rates enabled */ | |
5510 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
5511 | sband = rdev->wiphy.bands[i]; | |
5512 | mask.control[i].legacy = | |
5513 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
24db78c0 SW |
5514 | if (sband) |
5515 | memcpy(mask.control[i].mcs, | |
5516 | sband->ht_cap.mcs.rx_mask, | |
5517 | sizeof(mask.control[i].mcs)); | |
5518 | else | |
5519 | memset(mask.control[i].mcs, 0, | |
5520 | sizeof(mask.control[i].mcs)); | |
13ae75b1 JM |
5521 | } |
5522 | ||
5523 | /* | |
5524 | * The nested attribute uses enum nl80211_band as the index. This maps | |
5525 | * directly to the enum ieee80211_band values used in cfg80211. | |
5526 | */ | |
24db78c0 | 5527 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
13ae75b1 JM |
5528 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) |
5529 | { | |
5530 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
5531 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
5532 | return -EINVAL; | |
13ae75b1 | 5533 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
5534 | if (sband == NULL) |
5535 | return -EINVAL; | |
13ae75b1 JM |
5536 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
5537 | nla_len(tx_rates), nl80211_txattr_policy); | |
5538 | if (tb[NL80211_TXRATE_LEGACY]) { | |
5539 | mask.control[band].legacy = rateset_to_mask( | |
5540 | sband, | |
5541 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
5542 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
24db78c0 SW |
5543 | } |
5544 | if (tb[NL80211_TXRATE_MCS]) { | |
5545 | if (!ht_rateset_to_mask( | |
5546 | sband, | |
5547 | nla_data(tb[NL80211_TXRATE_MCS]), | |
5548 | nla_len(tb[NL80211_TXRATE_MCS]), | |
5549 | mask.control[band].mcs)) | |
5550 | return -EINVAL; | |
5551 | } | |
5552 | ||
5553 | if (mask.control[band].legacy == 0) { | |
5554 | /* don't allow empty legacy rates if HT | |
5555 | * is not even supported. */ | |
5556 | if (!rdev->wiphy.bands[band]->ht_cap.ht_supported) | |
5557 | return -EINVAL; | |
5558 | ||
5559 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
5560 | if (mask.control[band].mcs[i]) | |
5561 | break; | |
5562 | ||
5563 | /* legacy and mcs rates may not be both empty */ | |
5564 | if (i == IEEE80211_HT_MCS_MASK_LEN) | |
4c476991 | 5565 | return -EINVAL; |
13ae75b1 JM |
5566 | } |
5567 | } | |
5568 | ||
4c476991 | 5569 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
5570 | } |
5571 | ||
2e161f78 | 5572 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 5573 | { |
4c476991 JB |
5574 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5575 | struct net_device *dev = info->user_ptr[1]; | |
2e161f78 | 5576 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
5577 | |
5578 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
5579 | return -EINVAL; | |
5580 | ||
2e161f78 JB |
5581 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
5582 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 5583 | |
9d38d85d | 5584 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 5585 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
5586 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
5587 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
5588 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
c7108a71 | 5589 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
5590 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
5591 | return -EOPNOTSUPP; | |
026331c4 JM |
5592 | |
5593 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
5594 | if (!rdev->ops->mgmt_tx) |
5595 | return -EOPNOTSUPP; | |
026331c4 | 5596 | |
4c476991 | 5597 | return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
2e161f78 | 5598 | frame_type, |
026331c4 JM |
5599 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
5600 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
5601 | } |
5602 | ||
2e161f78 | 5603 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 5604 | { |
4c476991 JB |
5605 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5606 | struct net_device *dev = info->user_ptr[1]; | |
026331c4 JM |
5607 | struct ieee80211_channel *chan; |
5608 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 5609 | bool channel_type_valid = false; |
026331c4 JM |
5610 | u32 freq; |
5611 | int err; | |
d64d373f | 5612 | void *hdr = NULL; |
026331c4 | 5613 | u64 cookie; |
e247bd90 | 5614 | struct sk_buff *msg = NULL; |
f7ca38df | 5615 | unsigned int wait = 0; |
e247bd90 JB |
5616 | bool offchan, no_cck, dont_wait_for_ack; |
5617 | ||
5618 | dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK]; | |
026331c4 JM |
5619 | |
5620 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
5621 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
5622 | return -EINVAL; | |
5623 | ||
4c476991 JB |
5624 | if (!rdev->ops->mgmt_tx) |
5625 | return -EOPNOTSUPP; | |
026331c4 | 5626 | |
9d38d85d | 5627 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 5628 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
5629 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
5630 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
5631 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
c7108a71 | 5632 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
5633 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
5634 | return -EOPNOTSUPP; | |
026331c4 | 5635 | |
f7ca38df | 5636 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 5637 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df JB |
5638 | return -EINVAL; |
5639 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
5640 | } | |
5641 | ||
026331c4 JM |
5642 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
5643 | channel_type = nla_get_u32( | |
5644 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
5645 | if (channel_type != NL80211_CHAN_NO_HT && | |
5646 | channel_type != NL80211_CHAN_HT20 && | |
5647 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
5648 | channel_type != NL80211_CHAN_HT40MINUS) |
5649 | return -EINVAL; | |
252aa631 | 5650 | channel_type_valid = true; |
026331c4 JM |
5651 | } |
5652 | ||
f7ca38df JB |
5653 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
5654 | ||
7c4ef712 JB |
5655 | if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
5656 | return -EINVAL; | |
5657 | ||
e9f935e3 RM |
5658 | no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
5659 | ||
026331c4 JM |
5660 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); |
5661 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
5662 | if (chan == NULL) |
5663 | return -EINVAL; | |
026331c4 | 5664 | |
e247bd90 JB |
5665 | if (!dont_wait_for_ack) { |
5666 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5667 | if (!msg) | |
5668 | return -ENOMEM; | |
026331c4 | 5669 | |
e247bd90 JB |
5670 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
5671 | NL80211_CMD_FRAME); | |
026331c4 | 5672 | |
e247bd90 JB |
5673 | if (IS_ERR(hdr)) { |
5674 | err = PTR_ERR(hdr); | |
5675 | goto free_msg; | |
5676 | } | |
026331c4 | 5677 | } |
e247bd90 | 5678 | |
f7ca38df JB |
5679 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type, |
5680 | channel_type_valid, wait, | |
2e161f78 JB |
5681 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
5682 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
e247bd90 | 5683 | no_cck, dont_wait_for_ack, &cookie); |
026331c4 JM |
5684 | if (err) |
5685 | goto free_msg; | |
5686 | ||
e247bd90 JB |
5687 | if (msg) { |
5688 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
026331c4 | 5689 | |
e247bd90 JB |
5690 | genlmsg_end(msg, hdr); |
5691 | return genlmsg_reply(msg, info); | |
5692 | } | |
5693 | ||
5694 | return 0; | |
026331c4 JM |
5695 | |
5696 | nla_put_failure: | |
5697 | err = -ENOBUFS; | |
5698 | free_msg: | |
5699 | nlmsg_free(msg); | |
026331c4 JM |
5700 | return err; |
5701 | } | |
5702 | ||
f7ca38df JB |
5703 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
5704 | { | |
5705 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5706 | struct net_device *dev = info->user_ptr[1]; | |
5707 | u64 cookie; | |
5708 | ||
5709 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
5710 | return -EINVAL; | |
5711 | ||
5712 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
5713 | return -EOPNOTSUPP; | |
5714 | ||
5715 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
5716 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
5717 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && | |
5718 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
5719 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
5720 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
5721 | return -EOPNOTSUPP; | |
5722 | ||
5723 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
5724 | ||
5725 | return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie); | |
5726 | } | |
5727 | ||
ffb9eb3d KV |
5728 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
5729 | { | |
4c476991 | 5730 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 5731 | struct wireless_dev *wdev; |
4c476991 | 5732 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
5733 | u8 ps_state; |
5734 | bool state; | |
5735 | int err; | |
5736 | ||
4c476991 JB |
5737 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
5738 | return -EINVAL; | |
ffb9eb3d KV |
5739 | |
5740 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
5741 | ||
4c476991 JB |
5742 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
5743 | return -EINVAL; | |
ffb9eb3d KV |
5744 | |
5745 | wdev = dev->ieee80211_ptr; | |
5746 | ||
4c476991 JB |
5747 | if (!rdev->ops->set_power_mgmt) |
5748 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
5749 | |
5750 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
5751 | ||
5752 | if (state == wdev->ps) | |
4c476991 | 5753 | return 0; |
ffb9eb3d | 5754 | |
4c476991 JB |
5755 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
5756 | wdev->ps_timeout); | |
5757 | if (!err) | |
5758 | wdev->ps = state; | |
ffb9eb3d KV |
5759 | return err; |
5760 | } | |
5761 | ||
5762 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
5763 | { | |
4c476991 | 5764 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
5765 | enum nl80211_ps_state ps_state; |
5766 | struct wireless_dev *wdev; | |
4c476991 | 5767 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
5768 | struct sk_buff *msg; |
5769 | void *hdr; | |
5770 | int err; | |
5771 | ||
ffb9eb3d KV |
5772 | wdev = dev->ieee80211_ptr; |
5773 | ||
4c476991 JB |
5774 | if (!rdev->ops->set_power_mgmt) |
5775 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
5776 | |
5777 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
5778 | if (!msg) |
5779 | return -ENOMEM; | |
ffb9eb3d KV |
5780 | |
5781 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5782 | NL80211_CMD_GET_POWER_SAVE); | |
5783 | if (!hdr) { | |
4c476991 | 5784 | err = -ENOBUFS; |
ffb9eb3d KV |
5785 | goto free_msg; |
5786 | } | |
5787 | ||
5788 | if (wdev->ps) | |
5789 | ps_state = NL80211_PS_ENABLED; | |
5790 | else | |
5791 | ps_state = NL80211_PS_DISABLED; | |
5792 | ||
5793 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
5794 | ||
5795 | genlmsg_end(msg, hdr); | |
4c476991 | 5796 | return genlmsg_reply(msg, info); |
ffb9eb3d | 5797 | |
4c476991 | 5798 | nla_put_failure: |
ffb9eb3d | 5799 | err = -ENOBUFS; |
4c476991 | 5800 | free_msg: |
ffb9eb3d | 5801 | nlmsg_free(msg); |
ffb9eb3d KV |
5802 | return err; |
5803 | } | |
5804 | ||
d6dc1a38 JO |
5805 | static struct nla_policy |
5806 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
5807 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
5808 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
5809 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
5810 | }; | |
5811 | ||
5812 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
5813 | s32 threshold, u32 hysteresis) | |
5814 | { | |
4c476991 | 5815 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 5816 | struct wireless_dev *wdev; |
4c476991 | 5817 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
5818 | |
5819 | if (threshold > 0) | |
5820 | return -EINVAL; | |
5821 | ||
d6dc1a38 JO |
5822 | wdev = dev->ieee80211_ptr; |
5823 | ||
4c476991 JB |
5824 | if (!rdev->ops->set_cqm_rssi_config) |
5825 | return -EOPNOTSUPP; | |
d6dc1a38 | 5826 | |
074ac8df | 5827 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
5828 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
5829 | return -EOPNOTSUPP; | |
d6dc1a38 | 5830 | |
4c476991 JB |
5831 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
5832 | threshold, hysteresis); | |
d6dc1a38 JO |
5833 | } |
5834 | ||
5835 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
5836 | { | |
5837 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
5838 | struct nlattr *cqm; | |
5839 | int err; | |
5840 | ||
5841 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
5842 | if (!cqm) { | |
5843 | err = -EINVAL; | |
5844 | goto out; | |
5845 | } | |
5846 | ||
5847 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
5848 | nl80211_attr_cqm_policy); | |
5849 | if (err) | |
5850 | goto out; | |
5851 | ||
5852 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
5853 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
5854 | s32 threshold; | |
5855 | u32 hysteresis; | |
5856 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
5857 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
5858 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
5859 | } else | |
5860 | err = -EINVAL; | |
5861 | ||
5862 | out: | |
5863 | return err; | |
5864 | } | |
5865 | ||
29cbe68c JB |
5866 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
5867 | { | |
5868 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5869 | struct net_device *dev = info->user_ptr[1]; | |
5870 | struct mesh_config cfg; | |
c80d545d | 5871 | struct mesh_setup setup; |
29cbe68c JB |
5872 | int err; |
5873 | ||
5874 | /* start with default */ | |
5875 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 5876 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 5877 | |
24bdd9f4 | 5878 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 5879 | /* and parse parameters if given */ |
24bdd9f4 | 5880 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
5881 | if (err) |
5882 | return err; | |
5883 | } | |
5884 | ||
5885 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
5886 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
5887 | return -EINVAL; | |
5888 | ||
c80d545d JC |
5889 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
5890 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
5891 | ||
4bb62344 CYY |
5892 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
5893 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
5894 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
5895 | return -EINVAL; | |
5896 | ||
c80d545d JC |
5897 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
5898 | /* parse additional setup parameters if given */ | |
5899 | err = nl80211_parse_mesh_setup(info, &setup); | |
5900 | if (err) | |
5901 | return err; | |
5902 | } | |
5903 | ||
5904 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); | |
29cbe68c JB |
5905 | } |
5906 | ||
5907 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
5908 | { | |
5909 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5910 | struct net_device *dev = info->user_ptr[1]; | |
5911 | ||
5912 | return cfg80211_leave_mesh(rdev, dev); | |
5913 | } | |
5914 | ||
ff1b6e69 JB |
5915 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
5916 | { | |
5917 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5918 | struct sk_buff *msg; | |
5919 | void *hdr; | |
5920 | ||
5921 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
5922 | return -EOPNOTSUPP; | |
5923 | ||
5924 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5925 | if (!msg) | |
5926 | return -ENOMEM; | |
5927 | ||
5928 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5929 | NL80211_CMD_GET_WOWLAN); | |
5930 | if (!hdr) | |
5931 | goto nla_put_failure; | |
5932 | ||
5933 | if (rdev->wowlan) { | |
5934 | struct nlattr *nl_wowlan; | |
5935 | ||
5936 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
5937 | if (!nl_wowlan) | |
5938 | goto nla_put_failure; | |
5939 | ||
5940 | if (rdev->wowlan->any) | |
5941 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY); | |
5942 | if (rdev->wowlan->disconnect) | |
5943 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT); | |
5944 | if (rdev->wowlan->magic_pkt) | |
5945 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT); | |
77dbbb13 JB |
5946 | if (rdev->wowlan->gtk_rekey_failure) |
5947 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE); | |
5948 | if (rdev->wowlan->eap_identity_req) | |
5949 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST); | |
5950 | if (rdev->wowlan->four_way_handshake) | |
5951 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE); | |
5952 | if (rdev->wowlan->rfkill_release) | |
5953 | NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE); | |
ff1b6e69 JB |
5954 | if (rdev->wowlan->n_patterns) { |
5955 | struct nlattr *nl_pats, *nl_pat; | |
5956 | int i, pat_len; | |
5957 | ||
5958 | nl_pats = nla_nest_start(msg, | |
5959 | NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
5960 | if (!nl_pats) | |
5961 | goto nla_put_failure; | |
5962 | ||
5963 | for (i = 0; i < rdev->wowlan->n_patterns; i++) { | |
5964 | nl_pat = nla_nest_start(msg, i + 1); | |
5965 | if (!nl_pat) | |
5966 | goto nla_put_failure; | |
5967 | pat_len = rdev->wowlan->patterns[i].pattern_len; | |
5968 | NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK, | |
5969 | DIV_ROUND_UP(pat_len, 8), | |
5970 | rdev->wowlan->patterns[i].mask); | |
5971 | NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN, | |
5972 | pat_len, | |
5973 | rdev->wowlan->patterns[i].pattern); | |
5974 | nla_nest_end(msg, nl_pat); | |
5975 | } | |
5976 | nla_nest_end(msg, nl_pats); | |
5977 | } | |
5978 | ||
5979 | nla_nest_end(msg, nl_wowlan); | |
5980 | } | |
5981 | ||
5982 | genlmsg_end(msg, hdr); | |
5983 | return genlmsg_reply(msg, info); | |
5984 | ||
5985 | nla_put_failure: | |
5986 | nlmsg_free(msg); | |
5987 | return -ENOBUFS; | |
5988 | } | |
5989 | ||
5990 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) | |
5991 | { | |
5992 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5993 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
5994 | struct cfg80211_wowlan no_triggers = {}; | |
5995 | struct cfg80211_wowlan new_triggers = {}; | |
5996 | struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; | |
5997 | int err, i; | |
5998 | ||
5999 | if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns) | |
6000 | return -EOPNOTSUPP; | |
6001 | ||
6002 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) | |
6003 | goto no_triggers; | |
6004 | ||
6005 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
6006 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6007 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
6008 | nl80211_wowlan_policy); | |
6009 | if (err) | |
6010 | return err; | |
6011 | ||
6012 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
6013 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
6014 | return -EINVAL; | |
6015 | new_triggers.any = true; | |
6016 | } | |
6017 | ||
6018 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
6019 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
6020 | return -EINVAL; | |
6021 | new_triggers.disconnect = true; | |
6022 | } | |
6023 | ||
6024 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
6025 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
6026 | return -EINVAL; | |
6027 | new_triggers.magic_pkt = true; | |
6028 | } | |
6029 | ||
77dbbb13 JB |
6030 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
6031 | return -EINVAL; | |
6032 | ||
6033 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
6034 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
6035 | return -EINVAL; | |
6036 | new_triggers.gtk_rekey_failure = true; | |
6037 | } | |
6038 | ||
6039 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
6040 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
6041 | return -EINVAL; | |
6042 | new_triggers.eap_identity_req = true; | |
6043 | } | |
6044 | ||
6045 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
6046 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
6047 | return -EINVAL; | |
6048 | new_triggers.four_way_handshake = true; | |
6049 | } | |
6050 | ||
6051 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
6052 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
6053 | return -EINVAL; | |
6054 | new_triggers.rfkill_release = true; | |
6055 | } | |
6056 | ||
ff1b6e69 JB |
6057 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
6058 | struct nlattr *pat; | |
6059 | int n_patterns = 0; | |
6060 | int rem, pat_len, mask_len; | |
6061 | struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT]; | |
6062 | ||
6063 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6064 | rem) | |
6065 | n_patterns++; | |
6066 | if (n_patterns > wowlan->n_patterns) | |
6067 | return -EINVAL; | |
6068 | ||
6069 | new_triggers.patterns = kcalloc(n_patterns, | |
6070 | sizeof(new_triggers.patterns[0]), | |
6071 | GFP_KERNEL); | |
6072 | if (!new_triggers.patterns) | |
6073 | return -ENOMEM; | |
6074 | ||
6075 | new_triggers.n_patterns = n_patterns; | |
6076 | i = 0; | |
6077 | ||
6078 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
6079 | rem) { | |
6080 | nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT, | |
6081 | nla_data(pat), nla_len(pat), NULL); | |
6082 | err = -EINVAL; | |
6083 | if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] || | |
6084 | !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]) | |
6085 | goto error; | |
6086 | pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]); | |
6087 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
6088 | if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) != | |
6089 | mask_len) | |
6090 | goto error; | |
6091 | if (pat_len > wowlan->pattern_max_len || | |
6092 | pat_len < wowlan->pattern_min_len) | |
6093 | goto error; | |
6094 | ||
6095 | new_triggers.patterns[i].mask = | |
6096 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
6097 | if (!new_triggers.patterns[i].mask) { | |
6098 | err = -ENOMEM; | |
6099 | goto error; | |
6100 | } | |
6101 | new_triggers.patterns[i].pattern = | |
6102 | new_triggers.patterns[i].mask + mask_len; | |
6103 | memcpy(new_triggers.patterns[i].mask, | |
6104 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]), | |
6105 | mask_len); | |
6106 | new_triggers.patterns[i].pattern_len = pat_len; | |
6107 | memcpy(new_triggers.patterns[i].pattern, | |
6108 | nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]), | |
6109 | pat_len); | |
6110 | i++; | |
6111 | } | |
6112 | } | |
6113 | ||
6114 | if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) { | |
6115 | struct cfg80211_wowlan *ntrig; | |
6116 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), | |
6117 | GFP_KERNEL); | |
6118 | if (!ntrig) { | |
6119 | err = -ENOMEM; | |
6120 | goto error; | |
6121 | } | |
6122 | cfg80211_rdev_free_wowlan(rdev); | |
6123 | rdev->wowlan = ntrig; | |
6124 | } else { | |
6125 | no_triggers: | |
6126 | cfg80211_rdev_free_wowlan(rdev); | |
6127 | rdev->wowlan = NULL; | |
6128 | } | |
6129 | ||
6130 | return 0; | |
6131 | error: | |
6132 | for (i = 0; i < new_triggers.n_patterns; i++) | |
6133 | kfree(new_triggers.patterns[i].mask); | |
6134 | kfree(new_triggers.patterns); | |
6135 | return err; | |
6136 | } | |
6137 | ||
e5497d76 JB |
6138 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
6139 | { | |
6140 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6141 | struct net_device *dev = info->user_ptr[1]; | |
6142 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6143 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
6144 | struct cfg80211_gtk_rekey_data rekey_data; | |
6145 | int err; | |
6146 | ||
6147 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
6148 | return -EINVAL; | |
6149 | ||
6150 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
6151 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6152 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
6153 | nl80211_rekey_policy); | |
6154 | if (err) | |
6155 | return err; | |
6156 | ||
6157 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
6158 | return -ERANGE; | |
6159 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
6160 | return -ERANGE; | |
6161 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
6162 | return -ERANGE; | |
6163 | ||
6164 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
6165 | NL80211_KEK_LEN); | |
6166 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
6167 | NL80211_KCK_LEN); | |
6168 | memcpy(rekey_data.replay_ctr, | |
6169 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
6170 | NL80211_REPLAY_CTR_LEN); | |
6171 | ||
6172 | wdev_lock(wdev); | |
6173 | if (!wdev->current_bss) { | |
6174 | err = -ENOTCONN; | |
6175 | goto out; | |
6176 | } | |
6177 | ||
6178 | if (!rdev->ops->set_rekey_data) { | |
6179 | err = -EOPNOTSUPP; | |
6180 | goto out; | |
6181 | } | |
6182 | ||
6183 | err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data); | |
6184 | out: | |
6185 | wdev_unlock(wdev); | |
6186 | return err; | |
6187 | } | |
6188 | ||
28946da7 JB |
6189 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
6190 | struct genl_info *info) | |
6191 | { | |
6192 | struct net_device *dev = info->user_ptr[1]; | |
6193 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6194 | ||
6195 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6196 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6197 | return -EINVAL; | |
6198 | ||
6199 | if (wdev->ap_unexpected_nlpid) | |
6200 | return -EBUSY; | |
6201 | ||
6202 | wdev->ap_unexpected_nlpid = info->snd_pid; | |
6203 | return 0; | |
6204 | } | |
6205 | ||
7f6cf311 JB |
6206 | static int nl80211_probe_client(struct sk_buff *skb, |
6207 | struct genl_info *info) | |
6208 | { | |
6209 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6210 | struct net_device *dev = info->user_ptr[1]; | |
6211 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6212 | struct sk_buff *msg; | |
6213 | void *hdr; | |
6214 | const u8 *addr; | |
6215 | u64 cookie; | |
6216 | int err; | |
6217 | ||
6218 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
6219 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
6220 | return -EOPNOTSUPP; | |
6221 | ||
6222 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6223 | return -EINVAL; | |
6224 | ||
6225 | if (!rdev->ops->probe_client) | |
6226 | return -EOPNOTSUPP; | |
6227 | ||
6228 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
6229 | if (!msg) | |
6230 | return -ENOMEM; | |
6231 | ||
6232 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
6233 | NL80211_CMD_PROBE_CLIENT); | |
6234 | ||
6235 | if (IS_ERR(hdr)) { | |
6236 | err = PTR_ERR(hdr); | |
6237 | goto free_msg; | |
6238 | } | |
6239 | ||
6240 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
6241 | ||
6242 | err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie); | |
6243 | if (err) | |
6244 | goto free_msg; | |
6245 | ||
6246 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
6247 | ||
6248 | genlmsg_end(msg, hdr); | |
6249 | ||
6250 | return genlmsg_reply(msg, info); | |
6251 | ||
6252 | nla_put_failure: | |
6253 | err = -ENOBUFS; | |
6254 | free_msg: | |
6255 | nlmsg_free(msg); | |
6256 | return err; | |
6257 | } | |
6258 | ||
5e760230 JB |
6259 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
6260 | { | |
6261 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6262 | ||
6263 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
6264 | return -EOPNOTSUPP; | |
6265 | ||
6266 | if (rdev->ap_beacons_nlpid) | |
6267 | return -EBUSY; | |
6268 | ||
6269 | rdev->ap_beacons_nlpid = info->snd_pid; | |
6270 | ||
6271 | return 0; | |
6272 | } | |
6273 | ||
4c476991 JB |
6274 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
6275 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
6276 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
6277 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
6278 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
6279 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
6280 | |
6281 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6282 | struct genl_info *info) | |
6283 | { | |
6284 | struct cfg80211_registered_device *rdev; | |
6285 | struct net_device *dev; | |
6286 | int err; | |
6287 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
6288 | ||
6289 | if (rtnl) | |
6290 | rtnl_lock(); | |
6291 | ||
6292 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
6293 | rdev = cfg80211_get_dev_from_info(info); | |
6294 | if (IS_ERR(rdev)) { | |
6295 | if (rtnl) | |
6296 | rtnl_unlock(); | |
6297 | return PTR_ERR(rdev); | |
6298 | } | |
6299 | info->user_ptr[0] = rdev; | |
6300 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
00918d33 JB |
6301 | err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs, |
6302 | &rdev, &dev); | |
4c476991 JB |
6303 | if (err) { |
6304 | if (rtnl) | |
6305 | rtnl_unlock(); | |
6306 | return err; | |
6307 | } | |
41265714 JB |
6308 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
6309 | !netif_running(dev)) { | |
d537f5fd JB |
6310 | cfg80211_unlock_rdev(rdev); |
6311 | dev_put(dev); | |
41265714 JB |
6312 | if (rtnl) |
6313 | rtnl_unlock(); | |
6314 | return -ENETDOWN; | |
6315 | } | |
4c476991 JB |
6316 | info->user_ptr[0] = rdev; |
6317 | info->user_ptr[1] = dev; | |
6318 | } | |
6319 | ||
6320 | return 0; | |
6321 | } | |
6322 | ||
6323 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
6324 | struct genl_info *info) | |
6325 | { | |
6326 | if (info->user_ptr[0]) | |
6327 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
6328 | if (info->user_ptr[1]) | |
6329 | dev_put(info->user_ptr[1]); | |
6330 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
6331 | rtnl_unlock(); | |
6332 | } | |
6333 | ||
55682965 JB |
6334 | static struct genl_ops nl80211_ops[] = { |
6335 | { | |
6336 | .cmd = NL80211_CMD_GET_WIPHY, | |
6337 | .doit = nl80211_get_wiphy, | |
6338 | .dumpit = nl80211_dump_wiphy, | |
6339 | .policy = nl80211_policy, | |
6340 | /* can be retrieved by unprivileged users */ | |
4c476991 | 6341 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
6342 | }, |
6343 | { | |
6344 | .cmd = NL80211_CMD_SET_WIPHY, | |
6345 | .doit = nl80211_set_wiphy, | |
6346 | .policy = nl80211_policy, | |
6347 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 6348 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
6349 | }, |
6350 | { | |
6351 | .cmd = NL80211_CMD_GET_INTERFACE, | |
6352 | .doit = nl80211_get_interface, | |
6353 | .dumpit = nl80211_dump_interface, | |
6354 | .policy = nl80211_policy, | |
6355 | /* can be retrieved by unprivileged users */ | |
4c476991 | 6356 | .internal_flags = NL80211_FLAG_NEED_NETDEV, |
55682965 JB |
6357 | }, |
6358 | { | |
6359 | .cmd = NL80211_CMD_SET_INTERFACE, | |
6360 | .doit = nl80211_set_interface, | |
6361 | .policy = nl80211_policy, | |
6362 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6363 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6364 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
6365 | }, |
6366 | { | |
6367 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
6368 | .doit = nl80211_new_interface, | |
6369 | .policy = nl80211_policy, | |
6370 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6371 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
6372 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
6373 | }, |
6374 | { | |
6375 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
6376 | .doit = nl80211_del_interface, | |
6377 | .policy = nl80211_policy, | |
41ade00f | 6378 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
6379 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6380 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
6381 | }, |
6382 | { | |
6383 | .cmd = NL80211_CMD_GET_KEY, | |
6384 | .doit = nl80211_get_key, | |
6385 | .policy = nl80211_policy, | |
6386 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6387 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6388 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
6389 | }, |
6390 | { | |
6391 | .cmd = NL80211_CMD_SET_KEY, | |
6392 | .doit = nl80211_set_key, | |
6393 | .policy = nl80211_policy, | |
6394 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6395 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6396 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
6397 | }, |
6398 | { | |
6399 | .cmd = NL80211_CMD_NEW_KEY, | |
6400 | .doit = nl80211_new_key, | |
6401 | .policy = nl80211_policy, | |
6402 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6403 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6404 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
6405 | }, |
6406 | { | |
6407 | .cmd = NL80211_CMD_DEL_KEY, | |
6408 | .doit = nl80211_del_key, | |
6409 | .policy = nl80211_policy, | |
55682965 | 6410 | .flags = GENL_ADMIN_PERM, |
41265714 | 6411 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6412 | NL80211_FLAG_NEED_RTNL, |
55682965 | 6413 | }, |
ed1b6cc7 JB |
6414 | { |
6415 | .cmd = NL80211_CMD_SET_BEACON, | |
6416 | .policy = nl80211_policy, | |
6417 | .flags = GENL_ADMIN_PERM, | |
8860020e | 6418 | .doit = nl80211_set_beacon, |
4c476991 JB |
6419 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6420 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
6421 | }, |
6422 | { | |
8860020e | 6423 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
6424 | .policy = nl80211_policy, |
6425 | .flags = GENL_ADMIN_PERM, | |
8860020e | 6426 | .doit = nl80211_start_ap, |
4c476991 JB |
6427 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6428 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
6429 | }, |
6430 | { | |
8860020e | 6431 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
6432 | .policy = nl80211_policy, |
6433 | .flags = GENL_ADMIN_PERM, | |
8860020e | 6434 | .doit = nl80211_stop_ap, |
4c476991 JB |
6435 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6436 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 | 6437 | }, |
5727ef1b JB |
6438 | { |
6439 | .cmd = NL80211_CMD_GET_STATION, | |
6440 | .doit = nl80211_get_station, | |
2ec600d6 | 6441 | .dumpit = nl80211_dump_station, |
5727ef1b | 6442 | .policy = nl80211_policy, |
4c476991 JB |
6443 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6444 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
6445 | }, |
6446 | { | |
6447 | .cmd = NL80211_CMD_SET_STATION, | |
6448 | .doit = nl80211_set_station, | |
6449 | .policy = nl80211_policy, | |
6450 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6451 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6452 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
6453 | }, |
6454 | { | |
6455 | .cmd = NL80211_CMD_NEW_STATION, | |
6456 | .doit = nl80211_new_station, | |
6457 | .policy = nl80211_policy, | |
6458 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6459 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6460 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
6461 | }, |
6462 | { | |
6463 | .cmd = NL80211_CMD_DEL_STATION, | |
6464 | .doit = nl80211_del_station, | |
6465 | .policy = nl80211_policy, | |
2ec600d6 | 6466 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
6467 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6468 | NL80211_FLAG_NEED_RTNL, | |
2ec600d6 LCC |
6469 | }, |
6470 | { | |
6471 | .cmd = NL80211_CMD_GET_MPATH, | |
6472 | .doit = nl80211_get_mpath, | |
6473 | .dumpit = nl80211_dump_mpath, | |
6474 | .policy = nl80211_policy, | |
6475 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6476 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6477 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6478 | }, |
6479 | { | |
6480 | .cmd = NL80211_CMD_SET_MPATH, | |
6481 | .doit = nl80211_set_mpath, | |
6482 | .policy = nl80211_policy, | |
6483 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6484 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6485 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6486 | }, |
6487 | { | |
6488 | .cmd = NL80211_CMD_NEW_MPATH, | |
6489 | .doit = nl80211_new_mpath, | |
6490 | .policy = nl80211_policy, | |
6491 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6492 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6493 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
6494 | }, |
6495 | { | |
6496 | .cmd = NL80211_CMD_DEL_MPATH, | |
6497 | .doit = nl80211_del_mpath, | |
6498 | .policy = nl80211_policy, | |
9f1ba906 | 6499 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
6500 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6501 | NL80211_FLAG_NEED_RTNL, | |
9f1ba906 JM |
6502 | }, |
6503 | { | |
6504 | .cmd = NL80211_CMD_SET_BSS, | |
6505 | .doit = nl80211_set_bss, | |
6506 | .policy = nl80211_policy, | |
b2e1b302 | 6507 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
6508 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6509 | NL80211_FLAG_NEED_RTNL, | |
b2e1b302 | 6510 | }, |
f130347c LR |
6511 | { |
6512 | .cmd = NL80211_CMD_GET_REG, | |
6513 | .doit = nl80211_get_reg, | |
6514 | .policy = nl80211_policy, | |
6515 | /* can be retrieved by unprivileged users */ | |
6516 | }, | |
b2e1b302 LR |
6517 | { |
6518 | .cmd = NL80211_CMD_SET_REG, | |
6519 | .doit = nl80211_set_reg, | |
6520 | .policy = nl80211_policy, | |
6521 | .flags = GENL_ADMIN_PERM, | |
6522 | }, | |
6523 | { | |
6524 | .cmd = NL80211_CMD_REQ_SET_REG, | |
6525 | .doit = nl80211_req_set_reg, | |
6526 | .policy = nl80211_policy, | |
93da9cc1 | 6527 | .flags = GENL_ADMIN_PERM, |
6528 | }, | |
6529 | { | |
24bdd9f4 JC |
6530 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
6531 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 6532 | .policy = nl80211_policy, |
6533 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
6534 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6535 | NL80211_FLAG_NEED_RTNL, | |
93da9cc1 | 6536 | }, |
6537 | { | |
24bdd9f4 JC |
6538 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
6539 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 6540 | .policy = nl80211_policy, |
9aed3cc1 | 6541 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 6542 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6543 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 6544 | }, |
2a519311 JB |
6545 | { |
6546 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
6547 | .doit = nl80211_trigger_scan, | |
6548 | .policy = nl80211_policy, | |
6549 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6550 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6551 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
6552 | }, |
6553 | { | |
6554 | .cmd = NL80211_CMD_GET_SCAN, | |
6555 | .policy = nl80211_policy, | |
6556 | .dumpit = nl80211_dump_scan, | |
6557 | }, | |
807f8a8c LC |
6558 | { |
6559 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
6560 | .doit = nl80211_start_sched_scan, | |
6561 | .policy = nl80211_policy, | |
6562 | .flags = GENL_ADMIN_PERM, | |
6563 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6564 | NL80211_FLAG_NEED_RTNL, | |
6565 | }, | |
6566 | { | |
6567 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
6568 | .doit = nl80211_stop_sched_scan, | |
6569 | .policy = nl80211_policy, | |
6570 | .flags = GENL_ADMIN_PERM, | |
6571 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6572 | NL80211_FLAG_NEED_RTNL, | |
6573 | }, | |
636a5d36 JM |
6574 | { |
6575 | .cmd = NL80211_CMD_AUTHENTICATE, | |
6576 | .doit = nl80211_authenticate, | |
6577 | .policy = nl80211_policy, | |
6578 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6579 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6580 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
6581 | }, |
6582 | { | |
6583 | .cmd = NL80211_CMD_ASSOCIATE, | |
6584 | .doit = nl80211_associate, | |
6585 | .policy = nl80211_policy, | |
6586 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6587 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6588 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
6589 | }, |
6590 | { | |
6591 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
6592 | .doit = nl80211_deauthenticate, | |
6593 | .policy = nl80211_policy, | |
6594 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6595 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6596 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
6597 | }, |
6598 | { | |
6599 | .cmd = NL80211_CMD_DISASSOCIATE, | |
6600 | .doit = nl80211_disassociate, | |
6601 | .policy = nl80211_policy, | |
6602 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6603 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6604 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 6605 | }, |
04a773ad JB |
6606 | { |
6607 | .cmd = NL80211_CMD_JOIN_IBSS, | |
6608 | .doit = nl80211_join_ibss, | |
6609 | .policy = nl80211_policy, | |
6610 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6611 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6612 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
6613 | }, |
6614 | { | |
6615 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
6616 | .doit = nl80211_leave_ibss, | |
6617 | .policy = nl80211_policy, | |
6618 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6619 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6620 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 6621 | }, |
aff89a9b JB |
6622 | #ifdef CONFIG_NL80211_TESTMODE |
6623 | { | |
6624 | .cmd = NL80211_CMD_TESTMODE, | |
6625 | .doit = nl80211_testmode_do, | |
71063f0e | 6626 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
6627 | .policy = nl80211_policy, |
6628 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6629 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
6630 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
6631 | }, |
6632 | #endif | |
b23aa676 SO |
6633 | { |
6634 | .cmd = NL80211_CMD_CONNECT, | |
6635 | .doit = nl80211_connect, | |
6636 | .policy = nl80211_policy, | |
6637 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6638 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6639 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
6640 | }, |
6641 | { | |
6642 | .cmd = NL80211_CMD_DISCONNECT, | |
6643 | .doit = nl80211_disconnect, | |
6644 | .policy = nl80211_policy, | |
6645 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6646 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6647 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 6648 | }, |
463d0183 JB |
6649 | { |
6650 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
6651 | .doit = nl80211_wiphy_netns, | |
6652 | .policy = nl80211_policy, | |
6653 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6654 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
6655 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 6656 | }, |
61fa713c HS |
6657 | { |
6658 | .cmd = NL80211_CMD_GET_SURVEY, | |
6659 | .policy = nl80211_policy, | |
6660 | .dumpit = nl80211_dump_survey, | |
6661 | }, | |
67fbb16b SO |
6662 | { |
6663 | .cmd = NL80211_CMD_SET_PMKSA, | |
6664 | .doit = nl80211_setdel_pmksa, | |
6665 | .policy = nl80211_policy, | |
6666 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6667 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6668 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
6669 | }, |
6670 | { | |
6671 | .cmd = NL80211_CMD_DEL_PMKSA, | |
6672 | .doit = nl80211_setdel_pmksa, | |
6673 | .policy = nl80211_policy, | |
6674 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6675 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6676 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
6677 | }, |
6678 | { | |
6679 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
6680 | .doit = nl80211_flush_pmksa, | |
6681 | .policy = nl80211_policy, | |
6682 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6683 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6684 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b | 6685 | }, |
9588bbd5 JM |
6686 | { |
6687 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
6688 | .doit = nl80211_remain_on_channel, | |
6689 | .policy = nl80211_policy, | |
6690 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6691 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6692 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
6693 | }, |
6694 | { | |
6695 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
6696 | .doit = nl80211_cancel_remain_on_channel, | |
6697 | .policy = nl80211_policy, | |
6698 | .flags = GENL_ADMIN_PERM, | |
41265714 | 6699 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6700 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 6701 | }, |
13ae75b1 JM |
6702 | { |
6703 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
6704 | .doit = nl80211_set_tx_bitrate_mask, | |
6705 | .policy = nl80211_policy, | |
6706 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6707 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6708 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 6709 | }, |
026331c4 | 6710 | { |
2e161f78 JB |
6711 | .cmd = NL80211_CMD_REGISTER_FRAME, |
6712 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
6713 | .policy = nl80211_policy, |
6714 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6715 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6716 | NL80211_FLAG_NEED_RTNL, | |
026331c4 JM |
6717 | }, |
6718 | { | |
2e161f78 JB |
6719 | .cmd = NL80211_CMD_FRAME, |
6720 | .doit = nl80211_tx_mgmt, | |
026331c4 | 6721 | .policy = nl80211_policy, |
f7ca38df JB |
6722 | .flags = GENL_ADMIN_PERM, |
6723 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6724 | NL80211_FLAG_NEED_RTNL, | |
6725 | }, | |
6726 | { | |
6727 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
6728 | .doit = nl80211_tx_mgmt_cancel_wait, | |
6729 | .policy = nl80211_policy, | |
026331c4 | 6730 | .flags = GENL_ADMIN_PERM, |
41265714 | 6731 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 6732 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 6733 | }, |
ffb9eb3d KV |
6734 | { |
6735 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
6736 | .doit = nl80211_set_power_save, | |
6737 | .policy = nl80211_policy, | |
6738 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6739 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6740 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
6741 | }, |
6742 | { | |
6743 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
6744 | .doit = nl80211_get_power_save, | |
6745 | .policy = nl80211_policy, | |
6746 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
6747 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6748 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 6749 | }, |
d6dc1a38 JO |
6750 | { |
6751 | .cmd = NL80211_CMD_SET_CQM, | |
6752 | .doit = nl80211_set_cqm, | |
6753 | .policy = nl80211_policy, | |
6754 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6755 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6756 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 6757 | }, |
f444de05 JB |
6758 | { |
6759 | .cmd = NL80211_CMD_SET_CHANNEL, | |
6760 | .doit = nl80211_set_channel, | |
6761 | .policy = nl80211_policy, | |
6762 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
6763 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6764 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 6765 | }, |
e8347eba BJ |
6766 | { |
6767 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
6768 | .doit = nl80211_set_wds_peer, | |
6769 | .policy = nl80211_policy, | |
6770 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
6771 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
6772 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 6773 | }, |
29cbe68c JB |
6774 | { |
6775 | .cmd = NL80211_CMD_JOIN_MESH, | |
6776 | .doit = nl80211_join_mesh, | |
6777 | .policy = nl80211_policy, | |
6778 | .flags = GENL_ADMIN_PERM, | |
6779 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6780 | NL80211_FLAG_NEED_RTNL, | |
6781 | }, | |
6782 | { | |
6783 | .cmd = NL80211_CMD_LEAVE_MESH, | |
6784 | .doit = nl80211_leave_mesh, | |
6785 | .policy = nl80211_policy, | |
6786 | .flags = GENL_ADMIN_PERM, | |
6787 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6788 | NL80211_FLAG_NEED_RTNL, | |
6789 | }, | |
ff1b6e69 JB |
6790 | { |
6791 | .cmd = NL80211_CMD_GET_WOWLAN, | |
6792 | .doit = nl80211_get_wowlan, | |
6793 | .policy = nl80211_policy, | |
6794 | /* can be retrieved by unprivileged users */ | |
6795 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
6796 | NL80211_FLAG_NEED_RTNL, | |
6797 | }, | |
6798 | { | |
6799 | .cmd = NL80211_CMD_SET_WOWLAN, | |
6800 | .doit = nl80211_set_wowlan, | |
6801 | .policy = nl80211_policy, | |
6802 | .flags = GENL_ADMIN_PERM, | |
6803 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
6804 | NL80211_FLAG_NEED_RTNL, | |
6805 | }, | |
e5497d76 JB |
6806 | { |
6807 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
6808 | .doit = nl80211_set_rekey_data, | |
6809 | .policy = nl80211_policy, | |
6810 | .flags = GENL_ADMIN_PERM, | |
6811 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6812 | NL80211_FLAG_NEED_RTNL, | |
6813 | }, | |
109086ce AN |
6814 | { |
6815 | .cmd = NL80211_CMD_TDLS_MGMT, | |
6816 | .doit = nl80211_tdls_mgmt, | |
6817 | .policy = nl80211_policy, | |
6818 | .flags = GENL_ADMIN_PERM, | |
6819 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6820 | NL80211_FLAG_NEED_RTNL, | |
6821 | }, | |
6822 | { | |
6823 | .cmd = NL80211_CMD_TDLS_OPER, | |
6824 | .doit = nl80211_tdls_oper, | |
6825 | .policy = nl80211_policy, | |
6826 | .flags = GENL_ADMIN_PERM, | |
6827 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
6828 | NL80211_FLAG_NEED_RTNL, | |
6829 | }, | |
28946da7 JB |
6830 | { |
6831 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
6832 | .doit = nl80211_register_unexpected_frame, | |
6833 | .policy = nl80211_policy, | |
6834 | .flags = GENL_ADMIN_PERM, | |
6835 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
6836 | NL80211_FLAG_NEED_RTNL, | |
6837 | }, | |
7f6cf311 JB |
6838 | { |
6839 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
6840 | .doit = nl80211_probe_client, | |
6841 | .policy = nl80211_policy, | |
6842 | .flags = GENL_ADMIN_PERM, | |
6843 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
6844 | NL80211_FLAG_NEED_RTNL, | |
6845 | }, | |
5e760230 JB |
6846 | { |
6847 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
6848 | .doit = nl80211_register_beacons, | |
6849 | .policy = nl80211_policy, | |
6850 | .flags = GENL_ADMIN_PERM, | |
6851 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
6852 | NL80211_FLAG_NEED_RTNL, | |
6853 | }, | |
1d9d9213 SW |
6854 | { |
6855 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
6856 | .doit = nl80211_set_noack_map, | |
6857 | .policy = nl80211_policy, | |
6858 | .flags = GENL_ADMIN_PERM, | |
6859 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
6860 | NL80211_FLAG_NEED_RTNL, | |
6861 | }, | |
6862 | ||
55682965 | 6863 | }; |
9588bbd5 | 6864 | |
6039f6d2 JM |
6865 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
6866 | .name = "mlme", | |
6867 | }; | |
55682965 JB |
6868 | |
6869 | /* multicast groups */ | |
6870 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
6871 | .name = "config", | |
6872 | }; | |
2a519311 JB |
6873 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
6874 | .name = "scan", | |
6875 | }; | |
73d54c9e LR |
6876 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
6877 | .name = "regulatory", | |
6878 | }; | |
55682965 JB |
6879 | |
6880 | /* notification functions */ | |
6881 | ||
6882 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
6883 | { | |
6884 | struct sk_buff *msg; | |
6885 | ||
fd2120ca | 6886 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
6887 | if (!msg) |
6888 | return; | |
6889 | ||
6890 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
6891 | nlmsg_free(msg); | |
6892 | return; | |
6893 | } | |
6894 | ||
463d0183 JB |
6895 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
6896 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
6897 | } |
6898 | ||
362a415d JB |
6899 | static int nl80211_add_scan_req(struct sk_buff *msg, |
6900 | struct cfg80211_registered_device *rdev) | |
6901 | { | |
6902 | struct cfg80211_scan_request *req = rdev->scan_req; | |
6903 | struct nlattr *nest; | |
6904 | int i; | |
6905 | ||
667503dd JB |
6906 | ASSERT_RDEV_LOCK(rdev); |
6907 | ||
362a415d JB |
6908 | if (WARN_ON(!req)) |
6909 | return 0; | |
6910 | ||
6911 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
6912 | if (!nest) | |
6913 | goto nla_put_failure; | |
6914 | for (i = 0; i < req->n_ssids; i++) | |
6915 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
6916 | nla_nest_end(msg, nest); | |
6917 | ||
6918 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
6919 | if (!nest) | |
6920 | goto nla_put_failure; | |
6921 | for (i = 0; i < req->n_channels; i++) | |
6922 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
6923 | nla_nest_end(msg, nest); | |
6924 | ||
6925 | if (req->ie) | |
6926 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
6927 | ||
6928 | return 0; | |
6929 | nla_put_failure: | |
6930 | return -ENOBUFS; | |
6931 | } | |
6932 | ||
a538e2d5 JB |
6933 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
6934 | struct cfg80211_registered_device *rdev, | |
6935 | struct net_device *netdev, | |
6936 | u32 pid, u32 seq, int flags, | |
6937 | u32 cmd) | |
2a519311 JB |
6938 | { |
6939 | void *hdr; | |
6940 | ||
6941 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
6942 | if (!hdr) | |
6943 | return -1; | |
6944 | ||
b5850a7a | 6945 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
6946 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
6947 | ||
362a415d JB |
6948 | /* ignore errors and send incomplete event anyway */ |
6949 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
6950 | |
6951 | return genlmsg_end(msg, hdr); | |
6952 | ||
6953 | nla_put_failure: | |
6954 | genlmsg_cancel(msg, hdr); | |
6955 | return -EMSGSIZE; | |
6956 | } | |
6957 | ||
807f8a8c LC |
6958 | static int |
6959 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
6960 | struct cfg80211_registered_device *rdev, | |
6961 | struct net_device *netdev, | |
6962 | u32 pid, u32 seq, int flags, u32 cmd) | |
6963 | { | |
6964 | void *hdr; | |
6965 | ||
6966 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
6967 | if (!hdr) | |
6968 | return -1; | |
6969 | ||
6970 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6971 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6972 | ||
6973 | return genlmsg_end(msg, hdr); | |
6974 | ||
6975 | nla_put_failure: | |
6976 | genlmsg_cancel(msg, hdr); | |
6977 | return -EMSGSIZE; | |
6978 | } | |
6979 | ||
a538e2d5 JB |
6980 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
6981 | struct net_device *netdev) | |
6982 | { | |
6983 | struct sk_buff *msg; | |
6984 | ||
6985 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
6986 | if (!msg) | |
6987 | return; | |
6988 | ||
6989 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
6990 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
6991 | nlmsg_free(msg); | |
6992 | return; | |
6993 | } | |
6994 | ||
463d0183 JB |
6995 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
6996 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
6997 | } |
6998 | ||
2a519311 JB |
6999 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
7000 | struct net_device *netdev) | |
7001 | { | |
7002 | struct sk_buff *msg; | |
7003 | ||
fd2120ca | 7004 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7005 | if (!msg) |
7006 | return; | |
7007 | ||
a538e2d5 JB |
7008 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
7009 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
7010 | nlmsg_free(msg); |
7011 | return; | |
7012 | } | |
7013 | ||
463d0183 JB |
7014 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7015 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7016 | } |
7017 | ||
7018 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
7019 | struct net_device *netdev) | |
7020 | { | |
7021 | struct sk_buff *msg; | |
7022 | ||
fd2120ca | 7023 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
7024 | if (!msg) |
7025 | return; | |
7026 | ||
a538e2d5 JB |
7027 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
7028 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
7029 | nlmsg_free(msg); |
7030 | return; | |
7031 | } | |
7032 | ||
463d0183 JB |
7033 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7034 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
7035 | } |
7036 | ||
807f8a8c LC |
7037 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
7038 | struct net_device *netdev) | |
7039 | { | |
7040 | struct sk_buff *msg; | |
7041 | ||
7042 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
7043 | if (!msg) | |
7044 | return; | |
7045 | ||
7046 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
7047 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
7048 | nlmsg_free(msg); | |
7049 | return; | |
7050 | } | |
7051 | ||
7052 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7053 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7054 | } | |
7055 | ||
7056 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
7057 | struct net_device *netdev, u32 cmd) | |
7058 | { | |
7059 | struct sk_buff *msg; | |
7060 | ||
7061 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
7062 | if (!msg) | |
7063 | return; | |
7064 | ||
7065 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
7066 | nlmsg_free(msg); | |
7067 | return; | |
7068 | } | |
7069 | ||
7070 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7071 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
7072 | } | |
7073 | ||
73d54c9e LR |
7074 | /* |
7075 | * This can happen on global regulatory changes or device specific settings | |
7076 | * based on custom world regulatory domains. | |
7077 | */ | |
7078 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
7079 | { | |
7080 | struct sk_buff *msg; | |
7081 | void *hdr; | |
7082 | ||
fd2120ca | 7083 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
7084 | if (!msg) |
7085 | return; | |
7086 | ||
7087 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
7088 | if (!hdr) { | |
7089 | nlmsg_free(msg); | |
7090 | return; | |
7091 | } | |
7092 | ||
7093 | /* Userspace can always count this one always being set */ | |
7094 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
7095 | ||
7096 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
7097 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
7098 | NL80211_REGDOM_TYPE_WORLD); | |
7099 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
7100 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
7101 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
7102 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
7103 | request->intersect) | |
7104 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
7105 | NL80211_REGDOM_TYPE_INTERSECTION); | |
7106 | else { | |
7107 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
7108 | NL80211_REGDOM_TYPE_COUNTRY); | |
7109 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
7110 | } | |
7111 | ||
7112 | if (wiphy_idx_valid(request->wiphy_idx)) | |
7113 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
7114 | ||
3b7b72ee | 7115 | genlmsg_end(msg, hdr); |
73d54c9e | 7116 | |
bc43b28c | 7117 | rcu_read_lock(); |
463d0183 | 7118 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
7119 | GFP_ATOMIC); |
7120 | rcu_read_unlock(); | |
73d54c9e LR |
7121 | |
7122 | return; | |
7123 | ||
7124 | nla_put_failure: | |
7125 | genlmsg_cancel(msg, hdr); | |
7126 | nlmsg_free(msg); | |
7127 | } | |
7128 | ||
6039f6d2 JM |
7129 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
7130 | struct net_device *netdev, | |
7131 | const u8 *buf, size_t len, | |
e6d6e342 | 7132 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
7133 | { |
7134 | struct sk_buff *msg; | |
7135 | void *hdr; | |
7136 | ||
e6d6e342 | 7137 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
7138 | if (!msg) |
7139 | return; | |
7140 | ||
7141 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7142 | if (!hdr) { | |
7143 | nlmsg_free(msg); | |
7144 | return; | |
7145 | } | |
7146 | ||
7147 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7148 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7149 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
7150 | ||
3b7b72ee | 7151 | genlmsg_end(msg, hdr); |
6039f6d2 | 7152 | |
463d0183 JB |
7153 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7154 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
7155 | return; |
7156 | ||
7157 | nla_put_failure: | |
7158 | genlmsg_cancel(msg, hdr); | |
7159 | nlmsg_free(msg); | |
7160 | } | |
7161 | ||
7162 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7163 | struct net_device *netdev, const u8 *buf, |
7164 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7165 | { |
7166 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7167 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
7168 | } |
7169 | ||
7170 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
7171 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7172 | size_t len, gfp_t gfp) |
6039f6d2 | 7173 | { |
e6d6e342 JB |
7174 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
7175 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
7176 | } |
7177 | ||
53b46b84 | 7178 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
7179 | struct net_device *netdev, const u8 *buf, |
7180 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
7181 | { |
7182 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7183 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
7184 | } |
7185 | ||
53b46b84 JM |
7186 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
7187 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 7188 | size_t len, gfp_t gfp) |
6039f6d2 JM |
7189 | { |
7190 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 7191 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
7192 | } |
7193 | ||
cf4e594e JM |
7194 | void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev, |
7195 | struct net_device *netdev, const u8 *buf, | |
7196 | size_t len, gfp_t gfp) | |
7197 | { | |
7198 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7199 | NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp); | |
7200 | } | |
7201 | ||
7202 | void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev, | |
7203 | struct net_device *netdev, const u8 *buf, | |
7204 | size_t len, gfp_t gfp) | |
7205 | { | |
7206 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
7207 | NL80211_CMD_UNPROT_DISASSOCIATE, gfp); | |
7208 | } | |
7209 | ||
1b06bb40 LR |
7210 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
7211 | struct net_device *netdev, int cmd, | |
e6d6e342 | 7212 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
7213 | { |
7214 | struct sk_buff *msg; | |
7215 | void *hdr; | |
7216 | ||
e6d6e342 | 7217 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
7218 | if (!msg) |
7219 | return; | |
7220 | ||
7221 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7222 | if (!hdr) { | |
7223 | nlmsg_free(msg); | |
7224 | return; | |
7225 | } | |
7226 | ||
7227 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7228 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7229 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
7230 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7231 | ||
3b7b72ee | 7232 | genlmsg_end(msg, hdr); |
1965c853 | 7233 | |
463d0183 JB |
7234 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7235 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
7236 | return; |
7237 | ||
7238 | nla_put_failure: | |
7239 | genlmsg_cancel(msg, hdr); | |
7240 | nlmsg_free(msg); | |
7241 | } | |
7242 | ||
7243 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7244 | struct net_device *netdev, const u8 *addr, |
7245 | gfp_t gfp) | |
1965c853 JM |
7246 | { |
7247 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 7248 | addr, gfp); |
1965c853 JM |
7249 | } |
7250 | ||
7251 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
7252 | struct net_device *netdev, const u8 *addr, |
7253 | gfp_t gfp) | |
1965c853 | 7254 | { |
e6d6e342 JB |
7255 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
7256 | addr, gfp); | |
1965c853 JM |
7257 | } |
7258 | ||
b23aa676 SO |
7259 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
7260 | struct net_device *netdev, const u8 *bssid, | |
7261 | const u8 *req_ie, size_t req_ie_len, | |
7262 | const u8 *resp_ie, size_t resp_ie_len, | |
7263 | u16 status, gfp_t gfp) | |
7264 | { | |
7265 | struct sk_buff *msg; | |
7266 | void *hdr; | |
7267 | ||
7268 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7269 | if (!msg) | |
7270 | return; | |
7271 | ||
7272 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
7273 | if (!hdr) { | |
7274 | nlmsg_free(msg); | |
7275 | return; | |
7276 | } | |
7277 | ||
7278 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7279 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7280 | if (bssid) | |
7281 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
7282 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
7283 | if (req_ie) | |
7284 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
7285 | if (resp_ie) | |
7286 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
7287 | ||
3b7b72ee | 7288 | genlmsg_end(msg, hdr); |
b23aa676 | 7289 | |
463d0183 JB |
7290 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7291 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
7292 | return; |
7293 | ||
7294 | nla_put_failure: | |
7295 | genlmsg_cancel(msg, hdr); | |
7296 | nlmsg_free(msg); | |
7297 | ||
7298 | } | |
7299 | ||
7300 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
7301 | struct net_device *netdev, const u8 *bssid, | |
7302 | const u8 *req_ie, size_t req_ie_len, | |
7303 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
7304 | { | |
7305 | struct sk_buff *msg; | |
7306 | void *hdr; | |
7307 | ||
7308 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7309 | if (!msg) | |
7310 | return; | |
7311 | ||
7312 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
7313 | if (!hdr) { | |
7314 | nlmsg_free(msg); | |
7315 | return; | |
7316 | } | |
7317 | ||
7318 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7319 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7320 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
7321 | if (req_ie) | |
7322 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
7323 | if (resp_ie) | |
7324 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
7325 | ||
3b7b72ee | 7326 | genlmsg_end(msg, hdr); |
b23aa676 | 7327 | |
463d0183 JB |
7328 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7329 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
7330 | return; |
7331 | ||
7332 | nla_put_failure: | |
7333 | genlmsg_cancel(msg, hdr); | |
7334 | nlmsg_free(msg); | |
7335 | ||
7336 | } | |
7337 | ||
7338 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
7339 | struct net_device *netdev, u16 reason, | |
667503dd | 7340 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
7341 | { |
7342 | struct sk_buff *msg; | |
7343 | void *hdr; | |
7344 | ||
667503dd | 7345 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
7346 | if (!msg) |
7347 | return; | |
7348 | ||
7349 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
7350 | if (!hdr) { | |
7351 | nlmsg_free(msg); | |
7352 | return; | |
7353 | } | |
7354 | ||
7355 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7356 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7357 | if (from_ap && reason) | |
7358 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
7359 | if (from_ap) | |
7360 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
7361 | if (ie) | |
7362 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
7363 | ||
3b7b72ee | 7364 | genlmsg_end(msg, hdr); |
b23aa676 | 7365 | |
463d0183 JB |
7366 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7367 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
7368 | return; |
7369 | ||
7370 | nla_put_failure: | |
7371 | genlmsg_cancel(msg, hdr); | |
7372 | nlmsg_free(msg); | |
7373 | ||
7374 | } | |
7375 | ||
04a773ad JB |
7376 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
7377 | struct net_device *netdev, const u8 *bssid, | |
7378 | gfp_t gfp) | |
7379 | { | |
7380 | struct sk_buff *msg; | |
7381 | void *hdr; | |
7382 | ||
fd2120ca | 7383 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
7384 | if (!msg) |
7385 | return; | |
7386 | ||
7387 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
7388 | if (!hdr) { | |
7389 | nlmsg_free(msg); | |
7390 | return; | |
7391 | } | |
7392 | ||
7393 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7394 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7395 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
7396 | ||
3b7b72ee | 7397 | genlmsg_end(msg, hdr); |
04a773ad | 7398 | |
463d0183 JB |
7399 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7400 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
7401 | return; |
7402 | ||
7403 | nla_put_failure: | |
7404 | genlmsg_cancel(msg, hdr); | |
7405 | nlmsg_free(msg); | |
7406 | } | |
7407 | ||
c93b5e71 JC |
7408 | void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev, |
7409 | struct net_device *netdev, | |
7410 | const u8 *macaddr, const u8* ie, u8 ie_len, | |
7411 | gfp_t gfp) | |
7412 | { | |
7413 | struct sk_buff *msg; | |
7414 | void *hdr; | |
7415 | ||
7416 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7417 | if (!msg) | |
7418 | return; | |
7419 | ||
7420 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
7421 | if (!hdr) { | |
7422 | nlmsg_free(msg); | |
7423 | return; | |
7424 | } | |
7425 | ||
7426 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7427 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7428 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr); | |
7429 | if (ie_len && ie) | |
7430 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie); | |
7431 | ||
3b7b72ee | 7432 | genlmsg_end(msg, hdr); |
c93b5e71 JC |
7433 | |
7434 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7435 | nl80211_mlme_mcgrp.id, gfp); | |
7436 | return; | |
7437 | ||
7438 | nla_put_failure: | |
7439 | genlmsg_cancel(msg, hdr); | |
7440 | nlmsg_free(msg); | |
7441 | } | |
7442 | ||
a3b8b056 JM |
7443 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
7444 | struct net_device *netdev, const u8 *addr, | |
7445 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 7446 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
7447 | { |
7448 | struct sk_buff *msg; | |
7449 | void *hdr; | |
7450 | ||
e6d6e342 | 7451 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
7452 | if (!msg) |
7453 | return; | |
7454 | ||
7455 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
7456 | if (!hdr) { | |
7457 | nlmsg_free(msg); | |
7458 | return; | |
7459 | } | |
7460 | ||
7461 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7462 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7463 | if (addr) | |
7464 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7465 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
a66b98db AN |
7466 | if (key_id != -1) |
7467 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
a3b8b056 JM |
7468 | if (tsc) |
7469 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
7470 | ||
3b7b72ee | 7471 | genlmsg_end(msg, hdr); |
a3b8b056 | 7472 | |
463d0183 JB |
7473 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
7474 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
7475 | return; |
7476 | ||
7477 | nla_put_failure: | |
7478 | genlmsg_cancel(msg, hdr); | |
7479 | nlmsg_free(msg); | |
7480 | } | |
7481 | ||
6bad8766 LR |
7482 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
7483 | struct ieee80211_channel *channel_before, | |
7484 | struct ieee80211_channel *channel_after) | |
7485 | { | |
7486 | struct sk_buff *msg; | |
7487 | void *hdr; | |
7488 | struct nlattr *nl_freq; | |
7489 | ||
fd2120ca | 7490 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
7491 | if (!msg) |
7492 | return; | |
7493 | ||
7494 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
7495 | if (!hdr) { | |
7496 | nlmsg_free(msg); | |
7497 | return; | |
7498 | } | |
7499 | ||
7500 | /* | |
7501 | * Since we are applying the beacon hint to a wiphy we know its | |
7502 | * wiphy_idx is valid | |
7503 | */ | |
7504 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
7505 | ||
7506 | /* Before */ | |
7507 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
7508 | if (!nl_freq) | |
7509 | goto nla_put_failure; | |
7510 | if (nl80211_msg_put_channel(msg, channel_before)) | |
7511 | goto nla_put_failure; | |
7512 | nla_nest_end(msg, nl_freq); | |
7513 | ||
7514 | /* After */ | |
7515 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
7516 | if (!nl_freq) | |
7517 | goto nla_put_failure; | |
7518 | if (nl80211_msg_put_channel(msg, channel_after)) | |
7519 | goto nla_put_failure; | |
7520 | nla_nest_end(msg, nl_freq); | |
7521 | ||
3b7b72ee | 7522 | genlmsg_end(msg, hdr); |
6bad8766 | 7523 | |
463d0183 JB |
7524 | rcu_read_lock(); |
7525 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
7526 | GFP_ATOMIC); | |
7527 | rcu_read_unlock(); | |
6bad8766 LR |
7528 | |
7529 | return; | |
7530 | ||
7531 | nla_put_failure: | |
7532 | genlmsg_cancel(msg, hdr); | |
7533 | nlmsg_free(msg); | |
7534 | } | |
7535 | ||
9588bbd5 JM |
7536 | static void nl80211_send_remain_on_chan_event( |
7537 | int cmd, struct cfg80211_registered_device *rdev, | |
7538 | struct net_device *netdev, u64 cookie, | |
7539 | struct ieee80211_channel *chan, | |
7540 | enum nl80211_channel_type channel_type, | |
7541 | unsigned int duration, gfp_t gfp) | |
7542 | { | |
7543 | struct sk_buff *msg; | |
7544 | void *hdr; | |
7545 | ||
7546 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7547 | if (!msg) | |
7548 | return; | |
7549 | ||
7550 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
7551 | if (!hdr) { | |
7552 | nlmsg_free(msg); | |
7553 | return; | |
7554 | } | |
7555 | ||
7556 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7557 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7558 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
7559 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
7560 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
7561 | ||
7562 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
7563 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
7564 | ||
3b7b72ee | 7565 | genlmsg_end(msg, hdr); |
9588bbd5 JM |
7566 | |
7567 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7568 | nl80211_mlme_mcgrp.id, gfp); | |
7569 | return; | |
7570 | ||
7571 | nla_put_failure: | |
7572 | genlmsg_cancel(msg, hdr); | |
7573 | nlmsg_free(msg); | |
7574 | } | |
7575 | ||
7576 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
7577 | struct net_device *netdev, u64 cookie, | |
7578 | struct ieee80211_channel *chan, | |
7579 | enum nl80211_channel_type channel_type, | |
7580 | unsigned int duration, gfp_t gfp) | |
7581 | { | |
7582 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
7583 | rdev, netdev, cookie, chan, | |
7584 | channel_type, duration, gfp); | |
7585 | } | |
7586 | ||
7587 | void nl80211_send_remain_on_channel_cancel( | |
7588 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
7589 | u64 cookie, struct ieee80211_channel *chan, | |
7590 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
7591 | { | |
7592 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
7593 | rdev, netdev, cookie, chan, | |
7594 | channel_type, 0, gfp); | |
7595 | } | |
7596 | ||
98b62183 JB |
7597 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
7598 | struct net_device *dev, const u8 *mac_addr, | |
7599 | struct station_info *sinfo, gfp_t gfp) | |
7600 | { | |
7601 | struct sk_buff *msg; | |
7602 | ||
7603 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7604 | if (!msg) | |
7605 | return; | |
7606 | ||
66266b3a JL |
7607 | if (nl80211_send_station(msg, 0, 0, 0, |
7608 | rdev, dev, mac_addr, sinfo) < 0) { | |
98b62183 JB |
7609 | nlmsg_free(msg); |
7610 | return; | |
7611 | } | |
7612 | ||
7613 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7614 | nl80211_mlme_mcgrp.id, gfp); | |
7615 | } | |
7616 | ||
ec15e68b JM |
7617 | void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev, |
7618 | struct net_device *dev, const u8 *mac_addr, | |
7619 | gfp_t gfp) | |
7620 | { | |
7621 | struct sk_buff *msg; | |
7622 | void *hdr; | |
7623 | ||
7624 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7625 | if (!msg) | |
7626 | return; | |
7627 | ||
7628 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
7629 | if (!hdr) { | |
7630 | nlmsg_free(msg); | |
7631 | return; | |
7632 | } | |
7633 | ||
7634 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
7635 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
7636 | ||
3b7b72ee | 7637 | genlmsg_end(msg, hdr); |
ec15e68b JM |
7638 | |
7639 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7640 | nl80211_mlme_mcgrp.id, gfp); | |
7641 | return; | |
7642 | ||
7643 | nla_put_failure: | |
7644 | genlmsg_cancel(msg, hdr); | |
7645 | nlmsg_free(msg); | |
7646 | } | |
7647 | ||
b92ab5d8 JB |
7648 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
7649 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
7650 | { |
7651 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7652 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
7653 | struct sk_buff *msg; | |
7654 | void *hdr; | |
7655 | int err; | |
7656 | u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid); | |
7657 | ||
7658 | if (!nlpid) | |
7659 | return false; | |
7660 | ||
7661 | msg = nlmsg_new(100, gfp); | |
7662 | if (!msg) | |
7663 | return true; | |
7664 | ||
b92ab5d8 | 7665 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
7666 | if (!hdr) { |
7667 | nlmsg_free(msg); | |
7668 | return true; | |
7669 | } | |
7670 | ||
7671 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7672 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
7673 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7674 | ||
7675 | err = genlmsg_end(msg, hdr); | |
7676 | if (err < 0) { | |
7677 | nlmsg_free(msg); | |
7678 | return true; | |
7679 | } | |
7680 | ||
7681 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
7682 | return true; | |
7683 | ||
7684 | nla_put_failure: | |
7685 | genlmsg_cancel(msg, hdr); | |
7686 | nlmsg_free(msg); | |
7687 | return true; | |
7688 | } | |
7689 | ||
b92ab5d8 JB |
7690 | bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp) |
7691 | { | |
7692 | return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
7693 | addr, gfp); | |
7694 | } | |
7695 | ||
7696 | bool nl80211_unexpected_4addr_frame(struct net_device *dev, | |
7697 | const u8 *addr, gfp_t gfp) | |
7698 | { | |
7699 | return __nl80211_unexpected_frame(dev, | |
7700 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
7701 | addr, gfp); | |
7702 | } | |
7703 | ||
2e161f78 JB |
7704 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
7705 | struct net_device *netdev, u32 nlpid, | |
804483e9 JB |
7706 | int freq, int sig_dbm, |
7707 | const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
7708 | { |
7709 | struct sk_buff *msg; | |
7710 | void *hdr; | |
026331c4 JM |
7711 | |
7712 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7713 | if (!msg) | |
7714 | return -ENOMEM; | |
7715 | ||
2e161f78 | 7716 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
7717 | if (!hdr) { |
7718 | nlmsg_free(msg); | |
7719 | return -ENOMEM; | |
7720 | } | |
7721 | ||
7722 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7723 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7724 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
804483e9 JB |
7725 | if (sig_dbm) |
7726 | NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm); | |
026331c4 JM |
7727 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); |
7728 | ||
3b7b72ee | 7729 | genlmsg_end(msg, hdr); |
026331c4 | 7730 | |
3b7b72ee | 7731 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); |
026331c4 JM |
7732 | |
7733 | nla_put_failure: | |
7734 | genlmsg_cancel(msg, hdr); | |
7735 | nlmsg_free(msg); | |
7736 | return -ENOBUFS; | |
7737 | } | |
7738 | ||
2e161f78 JB |
7739 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
7740 | struct net_device *netdev, u64 cookie, | |
7741 | const u8 *buf, size_t len, bool ack, | |
7742 | gfp_t gfp) | |
026331c4 JM |
7743 | { |
7744 | struct sk_buff *msg; | |
7745 | void *hdr; | |
7746 | ||
7747 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
7748 | if (!msg) | |
7749 | return; | |
7750 | ||
2e161f78 | 7751 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
7752 | if (!hdr) { |
7753 | nlmsg_free(msg); | |
7754 | return; | |
7755 | } | |
7756 | ||
7757 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7758 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7759 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
7760 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
7761 | if (ack) | |
7762 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
7763 | ||
3b7b72ee | 7764 | genlmsg_end(msg, hdr); |
026331c4 JM |
7765 | |
7766 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
7767 | return; | |
7768 | ||
7769 | nla_put_failure: | |
7770 | genlmsg_cancel(msg, hdr); | |
7771 | nlmsg_free(msg); | |
7772 | } | |
7773 | ||
d6dc1a38 JO |
7774 | void |
7775 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
7776 | struct net_device *netdev, | |
7777 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
7778 | gfp_t gfp) | |
7779 | { | |
7780 | struct sk_buff *msg; | |
7781 | struct nlattr *pinfoattr; | |
7782 | void *hdr; | |
7783 | ||
7784 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7785 | if (!msg) | |
7786 | return; | |
7787 | ||
7788 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
7789 | if (!hdr) { | |
7790 | nlmsg_free(msg); | |
7791 | return; | |
7792 | } | |
7793 | ||
7794 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7795 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7796 | ||
7797 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
7798 | if (!pinfoattr) | |
7799 | goto nla_put_failure; | |
7800 | ||
7801 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
7802 | rssi_event); | |
7803 | ||
7804 | nla_nest_end(msg, pinfoattr); | |
7805 | ||
3b7b72ee | 7806 | genlmsg_end(msg, hdr); |
d6dc1a38 JO |
7807 | |
7808 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7809 | nl80211_mlme_mcgrp.id, gfp); | |
7810 | return; | |
7811 | ||
7812 | nla_put_failure: | |
7813 | genlmsg_cancel(msg, hdr); | |
7814 | nlmsg_free(msg); | |
7815 | } | |
7816 | ||
e5497d76 JB |
7817 | void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
7818 | struct net_device *netdev, const u8 *bssid, | |
7819 | const u8 *replay_ctr, gfp_t gfp) | |
7820 | { | |
7821 | struct sk_buff *msg; | |
7822 | struct nlattr *rekey_attr; | |
7823 | void *hdr; | |
7824 | ||
7825 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7826 | if (!msg) | |
7827 | return; | |
7828 | ||
7829 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
7830 | if (!hdr) { | |
7831 | nlmsg_free(msg); | |
7832 | return; | |
7833 | } | |
7834 | ||
7835 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7836 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7837 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
7838 | ||
7839 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
7840 | if (!rekey_attr) | |
7841 | goto nla_put_failure; | |
7842 | ||
7843 | NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, | |
7844 | NL80211_REPLAY_CTR_LEN, replay_ctr); | |
7845 | ||
7846 | nla_nest_end(msg, rekey_attr); | |
7847 | ||
3b7b72ee | 7848 | genlmsg_end(msg, hdr); |
e5497d76 JB |
7849 | |
7850 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7851 | nl80211_mlme_mcgrp.id, gfp); | |
7852 | return; | |
7853 | ||
7854 | nla_put_failure: | |
7855 | genlmsg_cancel(msg, hdr); | |
7856 | nlmsg_free(msg); | |
7857 | } | |
7858 | ||
c9df56b4 JM |
7859 | void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, |
7860 | struct net_device *netdev, int index, | |
7861 | const u8 *bssid, bool preauth, gfp_t gfp) | |
7862 | { | |
7863 | struct sk_buff *msg; | |
7864 | struct nlattr *attr; | |
7865 | void *hdr; | |
7866 | ||
7867 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7868 | if (!msg) | |
7869 | return; | |
7870 | ||
7871 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
7872 | if (!hdr) { | |
7873 | nlmsg_free(msg); | |
7874 | return; | |
7875 | } | |
7876 | ||
7877 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7878 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7879 | ||
7880 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
7881 | if (!attr) | |
7882 | goto nla_put_failure; | |
7883 | ||
7884 | NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index); | |
7885 | NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid); | |
7886 | if (preauth) | |
7887 | NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH); | |
7888 | ||
7889 | nla_nest_end(msg, attr); | |
7890 | ||
3b7b72ee | 7891 | genlmsg_end(msg, hdr); |
c9df56b4 JM |
7892 | |
7893 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7894 | nl80211_mlme_mcgrp.id, gfp); | |
7895 | return; | |
7896 | ||
7897 | nla_put_failure: | |
7898 | genlmsg_cancel(msg, hdr); | |
7899 | nlmsg_free(msg); | |
7900 | } | |
7901 | ||
c063dbf5 JB |
7902 | void |
7903 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
7904 | struct net_device *netdev, const u8 *peer, | |
7905 | u32 num_packets, gfp_t gfp) | |
7906 | { | |
7907 | struct sk_buff *msg; | |
7908 | struct nlattr *pinfoattr; | |
7909 | void *hdr; | |
7910 | ||
7911 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7912 | if (!msg) | |
7913 | return; | |
7914 | ||
7915 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
7916 | if (!hdr) { | |
7917 | nlmsg_free(msg); | |
7918 | return; | |
7919 | } | |
7920 | ||
7921 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7922 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
7923 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); | |
7924 | ||
7925 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
7926 | if (!pinfoattr) | |
7927 | goto nla_put_failure; | |
7928 | ||
7929 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets); | |
7930 | ||
7931 | nla_nest_end(msg, pinfoattr); | |
7932 | ||
3b7b72ee | 7933 | genlmsg_end(msg, hdr); |
c063dbf5 JB |
7934 | |
7935 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7936 | nl80211_mlme_mcgrp.id, gfp); | |
7937 | return; | |
7938 | ||
7939 | nla_put_failure: | |
7940 | genlmsg_cancel(msg, hdr); | |
7941 | nlmsg_free(msg); | |
7942 | } | |
7943 | ||
7f6cf311 JB |
7944 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
7945 | u64 cookie, bool acked, gfp_t gfp) | |
7946 | { | |
7947 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
7948 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); | |
7949 | struct sk_buff *msg; | |
7950 | void *hdr; | |
7951 | int err; | |
7952 | ||
7953 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
7954 | if (!msg) | |
7955 | return; | |
7956 | ||
7957 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
7958 | if (!hdr) { | |
7959 | nlmsg_free(msg); | |
7960 | return; | |
7961 | } | |
7962 | ||
7963 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
7964 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
7965 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
7966 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
7967 | if (acked) | |
7968 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
7969 | ||
7970 | err = genlmsg_end(msg, hdr); | |
7971 | if (err < 0) { | |
7972 | nlmsg_free(msg); | |
7973 | return; | |
7974 | } | |
7975 | ||
7976 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
7977 | nl80211_mlme_mcgrp.id, gfp); | |
7978 | return; | |
7979 | ||
7980 | nla_put_failure: | |
7981 | genlmsg_cancel(msg, hdr); | |
7982 | nlmsg_free(msg); | |
7983 | } | |
7984 | EXPORT_SYMBOL(cfg80211_probe_status); | |
7985 | ||
5e760230 JB |
7986 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
7987 | const u8 *frame, size_t len, | |
804483e9 | 7988 | int freq, int sig_dbm, gfp_t gfp) |
5e760230 JB |
7989 | { |
7990 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
7991 | struct sk_buff *msg; | |
7992 | void *hdr; | |
7993 | u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid); | |
7994 | ||
7995 | if (!nlpid) | |
7996 | return; | |
7997 | ||
7998 | msg = nlmsg_new(len + 100, gfp); | |
7999 | if (!msg) | |
8000 | return; | |
8001 | ||
8002 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); | |
8003 | if (!hdr) { | |
8004 | nlmsg_free(msg); | |
8005 | return; | |
8006 | } | |
8007 | ||
8008 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
8009 | if (freq) | |
8010 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
804483e9 JB |
8011 | if (sig_dbm) |
8012 | NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm); | |
5e760230 JB |
8013 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame); |
8014 | ||
8015 | genlmsg_end(msg, hdr); | |
8016 | ||
8017 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
8018 | return; | |
8019 | ||
8020 | nla_put_failure: | |
8021 | genlmsg_cancel(msg, hdr); | |
8022 | nlmsg_free(msg); | |
8023 | } | |
8024 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
8025 | ||
026331c4 JM |
8026 | static int nl80211_netlink_notify(struct notifier_block * nb, |
8027 | unsigned long state, | |
8028 | void *_notify) | |
8029 | { | |
8030 | struct netlink_notify *notify = _notify; | |
8031 | struct cfg80211_registered_device *rdev; | |
8032 | struct wireless_dev *wdev; | |
8033 | ||
8034 | if (state != NETLINK_URELEASE) | |
8035 | return NOTIFY_DONE; | |
8036 | ||
8037 | rcu_read_lock(); | |
8038 | ||
5e760230 | 8039 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
026331c4 | 8040 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) |
2e161f78 | 8041 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
5e760230 JB |
8042 | if (rdev->ap_beacons_nlpid == notify->pid) |
8043 | rdev->ap_beacons_nlpid = 0; | |
8044 | } | |
026331c4 JM |
8045 | |
8046 | rcu_read_unlock(); | |
8047 | ||
8048 | return NOTIFY_DONE; | |
8049 | } | |
8050 | ||
8051 | static struct notifier_block nl80211_netlink_notifier = { | |
8052 | .notifier_call = nl80211_netlink_notify, | |
8053 | }; | |
8054 | ||
55682965 JB |
8055 | /* initialisation/exit functions */ |
8056 | ||
8057 | int nl80211_init(void) | |
8058 | { | |
0d63cbb5 | 8059 | int err; |
55682965 | 8060 | |
0d63cbb5 MM |
8061 | err = genl_register_family_with_ops(&nl80211_fam, |
8062 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
8063 | if (err) |
8064 | return err; | |
8065 | ||
55682965 JB |
8066 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
8067 | if (err) | |
8068 | goto err_out; | |
8069 | ||
2a519311 JB |
8070 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
8071 | if (err) | |
8072 | goto err_out; | |
8073 | ||
73d54c9e LR |
8074 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
8075 | if (err) | |
8076 | goto err_out; | |
8077 | ||
6039f6d2 JM |
8078 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
8079 | if (err) | |
8080 | goto err_out; | |
8081 | ||
aff89a9b JB |
8082 | #ifdef CONFIG_NL80211_TESTMODE |
8083 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
8084 | if (err) | |
8085 | goto err_out; | |
8086 | #endif | |
8087 | ||
026331c4 JM |
8088 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
8089 | if (err) | |
8090 | goto err_out; | |
8091 | ||
55682965 JB |
8092 | return 0; |
8093 | err_out: | |
8094 | genl_unregister_family(&nl80211_fam); | |
8095 | return err; | |
8096 | } | |
8097 | ||
8098 | void nl80211_exit(void) | |
8099 | { | |
026331c4 | 8100 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
8101 | genl_unregister_family(&nl80211_fam); |
8102 | } |