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Commit | Line | Data |
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55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
2a0e047e | 22 | #include <net/inet_connection_sock.h> |
55682965 JB |
23 | #include "core.h" |
24 | #include "nl80211.h" | |
b2e1b302 | 25 | #include "reg.h" |
e35e4d28 | 26 | #include "rdev-ops.h" |
55682965 | 27 | |
5fb628e9 JM |
28 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
29 | struct genl_info *info, | |
30 | struct cfg80211_crypto_settings *settings, | |
31 | int cipher_limit); | |
32 | ||
f84f771d | 33 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 | 34 | struct genl_info *info); |
f84f771d | 35 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
36 | struct genl_info *info); |
37 | ||
55682965 JB |
38 | /* the netlink family */ |
39 | static struct genl_family nl80211_fam = { | |
fb4e1568 MH |
40 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ |
41 | .name = NL80211_GENL_NAME, /* have users key off the name instead */ | |
42 | .hdrsize = 0, /* no private header */ | |
43 | .version = 1, /* no particular meaning now */ | |
55682965 | 44 | .maxattr = NL80211_ATTR_MAX, |
463d0183 | 45 | .netnsok = true, |
4c476991 JB |
46 | .pre_doit = nl80211_pre_doit, |
47 | .post_doit = nl80211_post_doit, | |
55682965 JB |
48 | }; |
49 | ||
2a94fe48 JB |
50 | /* multicast groups */ |
51 | enum nl80211_multicast_groups { | |
52 | NL80211_MCGRP_CONFIG, | |
53 | NL80211_MCGRP_SCAN, | |
54 | NL80211_MCGRP_REGULATORY, | |
55 | NL80211_MCGRP_MLME, | |
567ffc35 | 56 | NL80211_MCGRP_VENDOR, |
2a94fe48 JB |
57 | NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ |
58 | }; | |
59 | ||
60 | static const struct genl_multicast_group nl80211_mcgrps[] = { | |
61 | [NL80211_MCGRP_CONFIG] = { .name = "config", }, | |
62 | [NL80211_MCGRP_SCAN] = { .name = "scan", }, | |
63 | [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", }, | |
64 | [NL80211_MCGRP_MLME] = { .name = "mlme", }, | |
567ffc35 | 65 | [NL80211_MCGRP_VENDOR] = { .name = "vendor", }, |
2a94fe48 JB |
66 | #ifdef CONFIG_NL80211_TESTMODE |
67 | [NL80211_MCGRP_TESTMODE] = { .name = "testmode", } | |
68 | #endif | |
69 | }; | |
70 | ||
89a54e48 JB |
71 | /* returns ERR_PTR values */ |
72 | static struct wireless_dev * | |
73 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
55682965 | 74 | { |
89a54e48 JB |
75 | struct cfg80211_registered_device *rdev; |
76 | struct wireless_dev *result = NULL; | |
77 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
78 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
79 | u64 wdev_id; | |
80 | int wiphy_idx = -1; | |
81 | int ifidx = -1; | |
55682965 | 82 | |
5fe231e8 | 83 | ASSERT_RTNL(); |
55682965 | 84 | |
89a54e48 JB |
85 | if (!have_ifidx && !have_wdev_id) |
86 | return ERR_PTR(-EINVAL); | |
55682965 | 87 | |
89a54e48 JB |
88 | if (have_ifidx) |
89 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
90 | if (have_wdev_id) { | |
91 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
92 | wiphy_idx = wdev_id >> 32; | |
55682965 JB |
93 | } |
94 | ||
89a54e48 JB |
95 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
96 | struct wireless_dev *wdev; | |
97 | ||
98 | if (wiphy_net(&rdev->wiphy) != netns) | |
99 | continue; | |
100 | ||
101 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
102 | continue; | |
103 | ||
89a54e48 JB |
104 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
105 | if (have_ifidx && wdev->netdev && | |
106 | wdev->netdev->ifindex == ifidx) { | |
107 | result = wdev; | |
108 | break; | |
109 | } | |
110 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
111 | result = wdev; | |
112 | break; | |
113 | } | |
114 | } | |
89a54e48 JB |
115 | |
116 | if (result) | |
117 | break; | |
118 | } | |
119 | ||
120 | if (result) | |
121 | return result; | |
122 | return ERR_PTR(-ENODEV); | |
55682965 JB |
123 | } |
124 | ||
a9455408 | 125 | static struct cfg80211_registered_device * |
878d9ec7 | 126 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
a9455408 | 127 | { |
7fee4778 JB |
128 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
129 | struct net_device *netdev; | |
a9455408 | 130 | |
5fe231e8 | 131 | ASSERT_RTNL(); |
a9455408 | 132 | |
878d9ec7 | 133 | if (!attrs[NL80211_ATTR_WIPHY] && |
89a54e48 JB |
134 | !attrs[NL80211_ATTR_IFINDEX] && |
135 | !attrs[NL80211_ATTR_WDEV]) | |
7fee4778 JB |
136 | return ERR_PTR(-EINVAL); |
137 | ||
878d9ec7 | 138 | if (attrs[NL80211_ATTR_WIPHY]) |
7fee4778 | 139 | rdev = cfg80211_rdev_by_wiphy_idx( |
878d9ec7 | 140 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
a9455408 | 141 | |
89a54e48 JB |
142 | if (attrs[NL80211_ATTR_WDEV]) { |
143 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
144 | struct wireless_dev *wdev; | |
145 | bool found = false; | |
146 | ||
147 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
148 | if (tmp) { | |
149 | /* make sure wdev exists */ | |
89a54e48 JB |
150 | list_for_each_entry(wdev, &tmp->wdev_list, list) { |
151 | if (wdev->identifier != (u32)wdev_id) | |
152 | continue; | |
153 | found = true; | |
154 | break; | |
155 | } | |
89a54e48 JB |
156 | |
157 | if (!found) | |
158 | tmp = NULL; | |
159 | ||
160 | if (rdev && tmp != rdev) | |
161 | return ERR_PTR(-EINVAL); | |
162 | rdev = tmp; | |
163 | } | |
164 | } | |
165 | ||
878d9ec7 JB |
166 | if (attrs[NL80211_ATTR_IFINDEX]) { |
167 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
7f2b8562 | 168 | netdev = __dev_get_by_index(netns, ifindex); |
7fee4778 JB |
169 | if (netdev) { |
170 | if (netdev->ieee80211_ptr) | |
f26cbf40 ZG |
171 | tmp = wiphy_to_rdev( |
172 | netdev->ieee80211_ptr->wiphy); | |
7fee4778 JB |
173 | else |
174 | tmp = NULL; | |
175 | ||
7fee4778 JB |
176 | /* not wireless device -- return error */ |
177 | if (!tmp) | |
178 | return ERR_PTR(-EINVAL); | |
179 | ||
180 | /* mismatch -- return error */ | |
181 | if (rdev && tmp != rdev) | |
182 | return ERR_PTR(-EINVAL); | |
183 | ||
184 | rdev = tmp; | |
a9455408 | 185 | } |
a9455408 | 186 | } |
a9455408 | 187 | |
4f7eff10 JB |
188 | if (!rdev) |
189 | return ERR_PTR(-ENODEV); | |
a9455408 | 190 | |
4f7eff10 JB |
191 | if (netns != wiphy_net(&rdev->wiphy)) |
192 | return ERR_PTR(-ENODEV); | |
193 | ||
194 | return rdev; | |
a9455408 JB |
195 | } |
196 | ||
197 | /* | |
198 | * This function returns a pointer to the driver | |
199 | * that the genl_info item that is passed refers to. | |
a9455408 JB |
200 | * |
201 | * The result of this can be a PTR_ERR and hence must | |
202 | * be checked with IS_ERR() for errors. | |
203 | */ | |
204 | static struct cfg80211_registered_device * | |
4f7eff10 | 205 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
a9455408 | 206 | { |
5fe231e8 | 207 | return __cfg80211_rdev_from_attrs(netns, info->attrs); |
a9455408 JB |
208 | } |
209 | ||
55682965 | 210 | /* policy for the attributes */ |
b54452b0 | 211 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
212 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
213 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 214 | .len = 20-1 }, |
31888487 | 215 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
3d9d1d66 | 216 | |
72bdcf34 | 217 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 218 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
3d9d1d66 JB |
219 | [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, |
220 | [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, | |
221 | [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, | |
222 | ||
b9a5f8ca JM |
223 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
224 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
225 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
226 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 227 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
228 | |
229 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
230 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
231 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 232 | |
e007b857 EP |
233 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
234 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 235 | |
b9454e83 | 236 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
237 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
238 | .len = WLAN_MAX_KEY_LEN }, | |
239 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
240 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
241 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 242 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 243 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
244 | |
245 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
246 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
247 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
248 | .len = IEEE80211_MAX_DATA_LEN }, | |
249 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
250 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
251 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
252 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
253 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
254 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
255 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 256 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 257 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 258 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 | 259 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
a4f606ea | 260 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
2ec600d6 | 261 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
9f1ba906 | 262 | |
b2e1b302 LR |
263 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
264 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
265 | ||
9f1ba906 JM |
266 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
267 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
268 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
269 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
270 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 271 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 272 | |
24bdd9f4 | 273 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 274 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 275 | |
6c739419 | 276 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
277 | |
278 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
279 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
280 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
281 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
282 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
283 | |
284 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
285 | .len = IEEE80211_MAX_SSID_LEN }, | |
286 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
287 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 288 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 289 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 290 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
291 | [NL80211_ATTR_STA_FLAGS2] = { |
292 | .len = sizeof(struct nl80211_sta_flag_update), | |
293 | }, | |
3f77316c | 294 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
295 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
296 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
297 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
298 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
299 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 300 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 301 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
302 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
303 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
304 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
305 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 306 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
307 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
308 | .len = IEEE80211_MAX_DATA_LEN }, | |
309 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 310 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 311 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 312 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 313 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
314 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
315 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 316 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
317 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
318 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 319 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 320 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 321 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 322 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 323 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 324 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 325 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 326 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 327 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
328 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
329 | .len = IEEE80211_MAX_DATA_LEN }, | |
330 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
331 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 332 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 333 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 334 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
335 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
336 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
337 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
338 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
339 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
e247bd90 | 340 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
341 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
342 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 343 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
344 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
345 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
346 | .len = NL80211_HT_CAPABILITY_LEN | |
347 | }, | |
1d9d9213 | 348 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 349 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 350 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
89a54e48 | 351 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
57b5ce07 | 352 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
e39e5b5e | 353 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
f461be3e | 354 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
ed473771 | 355 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
53cabad7 JB |
356 | [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, |
357 | [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, | |
77765eaf VT |
358 | [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, |
359 | [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, | |
9d62a986 JM |
360 | [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, |
361 | [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, }, | |
3713b4e3 | 362 | [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, }, |
ee2aca34 JB |
363 | [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG }, |
364 | [NL80211_ATTR_VHT_CAPABILITY_MASK] = { | |
365 | .len = NL80211_VHT_CAPABILITY_LEN, | |
366 | }, | |
355199e0 JM |
367 | [NL80211_ATTR_MDID] = { .type = NLA_U16 }, |
368 | [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, | |
369 | .len = IEEE80211_MAX_DATA_LEN }, | |
5e4b6f56 | 370 | [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 }, |
16ef1fe2 SW |
371 | [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, |
372 | [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, | |
373 | [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, | |
374 | [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 }, | |
375 | [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 }, | |
c01fc9ad SD |
376 | [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY }, |
377 | [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY }, | |
5336fa88 | 378 | [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, |
60f4a7b1 | 379 | [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 }, |
ad7e718c JB |
380 | [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 }, |
381 | [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 }, | |
382 | [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY }, | |
fa9ffc74 KP |
383 | [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY, |
384 | .len = IEEE80211_QOS_MAP_LEN_MAX }, | |
1df4a510 JM |
385 | [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN }, |
386 | [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, | |
df942e7b | 387 | [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, |
78f22b6a | 388 | [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG }, |
55682965 JB |
389 | }; |
390 | ||
e31b8213 | 391 | /* policy for the key attributes */ |
b54452b0 | 392 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 393 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
394 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
395 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 396 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
397 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
398 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 399 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
400 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
401 | }; | |
402 | ||
403 | /* policy for the key default flags */ | |
404 | static const struct nla_policy | |
405 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
406 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
407 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
408 | }; |
409 | ||
ff1b6e69 JB |
410 | /* policy for WoWLAN attributes */ |
411 | static const struct nla_policy | |
412 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
413 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
414 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
415 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
416 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
417 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
418 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
419 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
420 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
2a0e047e JB |
421 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, |
422 | }; | |
423 | ||
424 | static const struct nla_policy | |
425 | nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { | |
426 | [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, | |
427 | [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, | |
428 | [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, | |
429 | [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, | |
430 | [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, | |
431 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, | |
432 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { | |
433 | .len = sizeof(struct nl80211_wowlan_tcp_data_seq) | |
434 | }, | |
435 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { | |
436 | .len = sizeof(struct nl80211_wowlan_tcp_data_token) | |
437 | }, | |
438 | [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, | |
439 | [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, | |
440 | [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, | |
ff1b6e69 JB |
441 | }; |
442 | ||
be29b99a AK |
443 | /* policy for coalesce rule attributes */ |
444 | static const struct nla_policy | |
445 | nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = { | |
446 | [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 }, | |
447 | [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 }, | |
448 | [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED }, | |
449 | }; | |
450 | ||
e5497d76 JB |
451 | /* policy for GTK rekey offload attributes */ |
452 | static const struct nla_policy | |
453 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
454 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
455 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
456 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
457 | }; | |
458 | ||
a1f1c21c LC |
459 | static const struct nla_policy |
460 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
4a4ab0d7 | 461 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
a1f1c21c | 462 | .len = IEEE80211_MAX_SSID_LEN }, |
88e920b4 | 463 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
a1f1c21c LC |
464 | }; |
465 | ||
97990a06 JB |
466 | static int nl80211_prepare_wdev_dump(struct sk_buff *skb, |
467 | struct netlink_callback *cb, | |
468 | struct cfg80211_registered_device **rdev, | |
469 | struct wireless_dev **wdev) | |
a043897a | 470 | { |
97990a06 | 471 | int err; |
a043897a | 472 | |
97990a06 | 473 | rtnl_lock(); |
a043897a | 474 | |
97990a06 JB |
475 | if (!cb->args[0]) { |
476 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
477 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
478 | nl80211_policy); | |
479 | if (err) | |
480 | goto out_unlock; | |
67748893 | 481 | |
97990a06 JB |
482 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), |
483 | nl80211_fam.attrbuf); | |
484 | if (IS_ERR(*wdev)) { | |
485 | err = PTR_ERR(*wdev); | |
486 | goto out_unlock; | |
487 | } | |
f26cbf40 | 488 | *rdev = wiphy_to_rdev((*wdev)->wiphy); |
c319d50b JB |
489 | /* 0 is the first index - add 1 to parse only once */ |
490 | cb->args[0] = (*rdev)->wiphy_idx + 1; | |
97990a06 JB |
491 | cb->args[1] = (*wdev)->identifier; |
492 | } else { | |
c319d50b JB |
493 | /* subtract the 1 again here */ |
494 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); | |
97990a06 | 495 | struct wireless_dev *tmp; |
67748893 | 496 | |
97990a06 JB |
497 | if (!wiphy) { |
498 | err = -ENODEV; | |
499 | goto out_unlock; | |
500 | } | |
f26cbf40 | 501 | *rdev = wiphy_to_rdev(wiphy); |
97990a06 | 502 | *wdev = NULL; |
67748893 | 503 | |
97990a06 JB |
504 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { |
505 | if (tmp->identifier == cb->args[1]) { | |
506 | *wdev = tmp; | |
507 | break; | |
508 | } | |
509 | } | |
67748893 | 510 | |
97990a06 JB |
511 | if (!*wdev) { |
512 | err = -ENODEV; | |
513 | goto out_unlock; | |
514 | } | |
67748893 JB |
515 | } |
516 | ||
67748893 | 517 | return 0; |
97990a06 | 518 | out_unlock: |
67748893 JB |
519 | rtnl_unlock(); |
520 | return err; | |
521 | } | |
522 | ||
97990a06 | 523 | static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev) |
67748893 | 524 | { |
67748893 JB |
525 | rtnl_unlock(); |
526 | } | |
527 | ||
f4a11bb0 JB |
528 | /* IE validation */ |
529 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
530 | { | |
531 | const u8 *pos; | |
532 | int len; | |
533 | ||
534 | if (!attr) | |
535 | return true; | |
536 | ||
537 | pos = nla_data(attr); | |
538 | len = nla_len(attr); | |
539 | ||
540 | while (len) { | |
541 | u8 elemlen; | |
542 | ||
543 | if (len < 2) | |
544 | return false; | |
545 | len -= 2; | |
546 | ||
547 | elemlen = pos[1]; | |
548 | if (elemlen > len) | |
549 | return false; | |
550 | ||
551 | len -= elemlen; | |
552 | pos += 2 + elemlen; | |
553 | } | |
554 | ||
555 | return true; | |
556 | } | |
557 | ||
55682965 | 558 | /* message building helper */ |
15e47304 | 559 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
55682965 JB |
560 | int flags, u8 cmd) |
561 | { | |
562 | /* since there is no private header just add the generic one */ | |
15e47304 | 563 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
55682965 JB |
564 | } |
565 | ||
5dab3b8a | 566 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
cdc89b97 JB |
567 | struct ieee80211_channel *chan, |
568 | bool large) | |
5dab3b8a | 569 | { |
9360ffd1 DM |
570 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
571 | chan->center_freq)) | |
572 | goto nla_put_failure; | |
5dab3b8a | 573 | |
9360ffd1 DM |
574 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
575 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
576 | goto nla_put_failure; | |
8fe02e16 LR |
577 | if (chan->flags & IEEE80211_CHAN_NO_IR) { |
578 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR)) | |
579 | goto nla_put_failure; | |
580 | if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
581 | goto nla_put_failure; | |
582 | } | |
cdc89b97 JB |
583 | if (chan->flags & IEEE80211_CHAN_RADAR) { |
584 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
585 | goto nla_put_failure; | |
586 | if (large) { | |
587 | u32 time; | |
588 | ||
589 | time = elapsed_jiffies_msecs(chan->dfs_state_entered); | |
590 | ||
591 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE, | |
592 | chan->dfs_state)) | |
593 | goto nla_put_failure; | |
594 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, | |
595 | time)) | |
596 | goto nla_put_failure; | |
089027e5 JD |
597 | if (nla_put_u32(msg, |
598 | NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, | |
599 | chan->dfs_cac_ms)) | |
600 | goto nla_put_failure; | |
cdc89b97 JB |
601 | } |
602 | } | |
5dab3b8a | 603 | |
fe1abafd JB |
604 | if (large) { |
605 | if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && | |
606 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) | |
607 | goto nla_put_failure; | |
608 | if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && | |
609 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) | |
610 | goto nla_put_failure; | |
611 | if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && | |
612 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) | |
613 | goto nla_put_failure; | |
614 | if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && | |
615 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) | |
616 | goto nla_put_failure; | |
570dbde1 DS |
617 | if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) && |
618 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY)) | |
619 | goto nla_put_failure; | |
620 | if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) && | |
621 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT)) | |
622 | goto nla_put_failure; | |
fe1abafd JB |
623 | } |
624 | ||
9360ffd1 DM |
625 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
626 | DBM_TO_MBM(chan->max_power))) | |
627 | goto nla_put_failure; | |
5dab3b8a LR |
628 | |
629 | return 0; | |
630 | ||
631 | nla_put_failure: | |
632 | return -ENOBUFS; | |
633 | } | |
634 | ||
55682965 JB |
635 | /* netlink command implementations */ |
636 | ||
b9454e83 JB |
637 | struct key_parse { |
638 | struct key_params p; | |
639 | int idx; | |
e31b8213 | 640 | int type; |
b9454e83 | 641 | bool def, defmgmt; |
dbd2fd65 | 642 | bool def_uni, def_multi; |
b9454e83 JB |
643 | }; |
644 | ||
645 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
646 | { | |
647 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
648 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
649 | nl80211_key_policy); | |
650 | if (err) | |
651 | return err; | |
652 | ||
653 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
654 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
655 | ||
dbd2fd65 JB |
656 | if (k->def) { |
657 | k->def_uni = true; | |
658 | k->def_multi = true; | |
659 | } | |
660 | if (k->defmgmt) | |
661 | k->def_multi = true; | |
662 | ||
b9454e83 JB |
663 | if (tb[NL80211_KEY_IDX]) |
664 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
665 | ||
666 | if (tb[NL80211_KEY_DATA]) { | |
667 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
668 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
669 | } | |
670 | ||
671 | if (tb[NL80211_KEY_SEQ]) { | |
672 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
673 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
674 | } | |
675 | ||
676 | if (tb[NL80211_KEY_CIPHER]) | |
677 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
678 | ||
e31b8213 JB |
679 | if (tb[NL80211_KEY_TYPE]) { |
680 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
681 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
682 | return -EINVAL; | |
683 | } | |
684 | ||
dbd2fd65 JB |
685 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
686 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
687 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
688 | tb[NL80211_KEY_DEFAULT_TYPES], | |
689 | nl80211_key_default_policy); | |
dbd2fd65 JB |
690 | if (err) |
691 | return err; | |
692 | ||
693 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
694 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
695 | } | |
696 | ||
b9454e83 JB |
697 | return 0; |
698 | } | |
699 | ||
700 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
701 | { | |
702 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
703 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
704 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
705 | } | |
706 | ||
707 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
708 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
709 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
710 | } | |
711 | ||
712 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
713 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
714 | ||
715 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
716 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
717 | ||
718 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
719 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
720 | ||
dbd2fd65 JB |
721 | if (k->def) { |
722 | k->def_uni = true; | |
723 | k->def_multi = true; | |
724 | } | |
725 | if (k->defmgmt) | |
726 | k->def_multi = true; | |
727 | ||
e31b8213 JB |
728 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
729 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
730 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
731 | return -EINVAL; | |
732 | } | |
733 | ||
dbd2fd65 JB |
734 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
735 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
736 | int err = nla_parse_nested( | |
737 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
738 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
739 | nl80211_key_default_policy); | |
740 | if (err) | |
741 | return err; | |
742 | ||
743 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
744 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
745 | } | |
746 | ||
b9454e83 JB |
747 | return 0; |
748 | } | |
749 | ||
750 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
751 | { | |
752 | int err; | |
753 | ||
754 | memset(k, 0, sizeof(*k)); | |
755 | k->idx = -1; | |
e31b8213 | 756 | k->type = -1; |
b9454e83 JB |
757 | |
758 | if (info->attrs[NL80211_ATTR_KEY]) | |
759 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
760 | else | |
761 | err = nl80211_parse_key_old(info, k); | |
762 | ||
763 | if (err) | |
764 | return err; | |
765 | ||
766 | if (k->def && k->defmgmt) | |
767 | return -EINVAL; | |
768 | ||
dbd2fd65 JB |
769 | if (k->defmgmt) { |
770 | if (k->def_uni || !k->def_multi) | |
771 | return -EINVAL; | |
772 | } | |
773 | ||
b9454e83 JB |
774 | if (k->idx != -1) { |
775 | if (k->defmgmt) { | |
776 | if (k->idx < 4 || k->idx > 5) | |
777 | return -EINVAL; | |
778 | } else if (k->def) { | |
779 | if (k->idx < 0 || k->idx > 3) | |
780 | return -EINVAL; | |
781 | } else { | |
782 | if (k->idx < 0 || k->idx > 5) | |
783 | return -EINVAL; | |
784 | } | |
785 | } | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
fffd0934 JB |
790 | static struct cfg80211_cached_keys * |
791 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
de7044ee | 792 | struct nlattr *keys, bool *no_ht) |
fffd0934 JB |
793 | { |
794 | struct key_parse parse; | |
795 | struct nlattr *key; | |
796 | struct cfg80211_cached_keys *result; | |
797 | int rem, err, def = 0; | |
798 | ||
799 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
800 | if (!result) | |
801 | return ERR_PTR(-ENOMEM); | |
802 | ||
803 | result->def = -1; | |
804 | result->defmgmt = -1; | |
805 | ||
806 | nla_for_each_nested(key, keys, rem) { | |
807 | memset(&parse, 0, sizeof(parse)); | |
808 | parse.idx = -1; | |
809 | ||
810 | err = nl80211_parse_key_new(key, &parse); | |
811 | if (err) | |
812 | goto error; | |
813 | err = -EINVAL; | |
814 | if (!parse.p.key) | |
815 | goto error; | |
816 | if (parse.idx < 0 || parse.idx > 4) | |
817 | goto error; | |
818 | if (parse.def) { | |
819 | if (def) | |
820 | goto error; | |
821 | def = 1; | |
822 | result->def = parse.idx; | |
dbd2fd65 JB |
823 | if (!parse.def_uni || !parse.def_multi) |
824 | goto error; | |
fffd0934 JB |
825 | } else if (parse.defmgmt) |
826 | goto error; | |
827 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 828 | parse.idx, false, NULL); |
fffd0934 JB |
829 | if (err) |
830 | goto error; | |
831 | result->params[parse.idx].cipher = parse.p.cipher; | |
832 | result->params[parse.idx].key_len = parse.p.key_len; | |
833 | result->params[parse.idx].key = result->data[parse.idx]; | |
834 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
de7044ee SM |
835 | |
836 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
837 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
838 | if (no_ht) | |
839 | *no_ht = true; | |
840 | } | |
fffd0934 JB |
841 | } |
842 | ||
843 | return result; | |
844 | error: | |
845 | kfree(result); | |
846 | return ERR_PTR(err); | |
847 | } | |
848 | ||
849 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
850 | { | |
851 | ASSERT_WDEV_LOCK(wdev); | |
852 | ||
fffd0934 JB |
853 | switch (wdev->iftype) { |
854 | case NL80211_IFTYPE_AP: | |
855 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 856 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 857 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
858 | break; |
859 | case NL80211_IFTYPE_ADHOC: | |
fffd0934 | 860 | case NL80211_IFTYPE_STATION: |
074ac8df | 861 | case NL80211_IFTYPE_P2P_CLIENT: |
ceca7b71 | 862 | if (!wdev->current_bss) |
fffd0934 JB |
863 | return -ENOLINK; |
864 | break; | |
865 | default: | |
866 | return -EINVAL; | |
867 | } | |
868 | ||
869 | return 0; | |
870 | } | |
871 | ||
664834de JM |
872 | static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy, |
873 | struct nlattr *tb) | |
874 | { | |
875 | struct ieee80211_channel *chan; | |
876 | ||
877 | if (tb == NULL) | |
878 | return NULL; | |
879 | chan = ieee80211_get_channel(wiphy, nla_get_u32(tb)); | |
880 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
881 | return NULL; | |
882 | return chan; | |
883 | } | |
884 | ||
7527a782 JB |
885 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
886 | { | |
887 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
888 | int i; | |
889 | ||
890 | if (!nl_modes) | |
891 | goto nla_put_failure; | |
892 | ||
893 | i = 0; | |
894 | while (ifmodes) { | |
9360ffd1 DM |
895 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
896 | goto nla_put_failure; | |
7527a782 JB |
897 | ifmodes >>= 1; |
898 | i++; | |
899 | } | |
900 | ||
901 | nla_nest_end(msg, nl_modes); | |
902 | return 0; | |
903 | ||
904 | nla_put_failure: | |
905 | return -ENOBUFS; | |
906 | } | |
907 | ||
908 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
cdc89b97 JB |
909 | struct sk_buff *msg, |
910 | bool large) | |
7527a782 JB |
911 | { |
912 | struct nlattr *nl_combis; | |
913 | int i, j; | |
914 | ||
915 | nl_combis = nla_nest_start(msg, | |
916 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
917 | if (!nl_combis) | |
918 | goto nla_put_failure; | |
919 | ||
920 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
921 | const struct ieee80211_iface_combination *c; | |
922 | struct nlattr *nl_combi, *nl_limits; | |
923 | ||
924 | c = &wiphy->iface_combinations[i]; | |
925 | ||
926 | nl_combi = nla_nest_start(msg, i + 1); | |
927 | if (!nl_combi) | |
928 | goto nla_put_failure; | |
929 | ||
930 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
931 | if (!nl_limits) | |
932 | goto nla_put_failure; | |
933 | ||
934 | for (j = 0; j < c->n_limits; j++) { | |
935 | struct nlattr *nl_limit; | |
936 | ||
937 | nl_limit = nla_nest_start(msg, j + 1); | |
938 | if (!nl_limit) | |
939 | goto nla_put_failure; | |
9360ffd1 DM |
940 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
941 | c->limits[j].max)) | |
942 | goto nla_put_failure; | |
7527a782 JB |
943 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
944 | c->limits[j].types)) | |
945 | goto nla_put_failure; | |
946 | nla_nest_end(msg, nl_limit); | |
947 | } | |
948 | ||
949 | nla_nest_end(msg, nl_limits); | |
950 | ||
9360ffd1 DM |
951 | if (c->beacon_int_infra_match && |
952 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
953 | goto nla_put_failure; | |
954 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
955 | c->num_different_channels) || | |
956 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
957 | c->max_interfaces)) | |
958 | goto nla_put_failure; | |
cdc89b97 JB |
959 | if (large && |
960 | nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, | |
961 | c->radar_detect_widths)) | |
962 | goto nla_put_failure; | |
7527a782 JB |
963 | |
964 | nla_nest_end(msg, nl_combi); | |
965 | } | |
966 | ||
967 | nla_nest_end(msg, nl_combis); | |
968 | ||
969 | return 0; | |
970 | nla_put_failure: | |
971 | return -ENOBUFS; | |
972 | } | |
973 | ||
3713b4e3 | 974 | #ifdef CONFIG_PM |
b56cf720 JB |
975 | static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, |
976 | struct sk_buff *msg) | |
977 | { | |
964dc9e2 | 978 | const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp; |
b56cf720 JB |
979 | struct nlattr *nl_tcp; |
980 | ||
981 | if (!tcp) | |
982 | return 0; | |
983 | ||
984 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
985 | if (!nl_tcp) | |
986 | return -ENOBUFS; | |
987 | ||
988 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
989 | tcp->data_payload_max)) | |
990 | return -ENOBUFS; | |
991 | ||
992 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
993 | tcp->data_payload_max)) | |
994 | return -ENOBUFS; | |
995 | ||
996 | if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) | |
997 | return -ENOBUFS; | |
998 | ||
999 | if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
1000 | sizeof(*tcp->tok), tcp->tok)) | |
1001 | return -ENOBUFS; | |
1002 | ||
1003 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
1004 | tcp->data_interval_max)) | |
1005 | return -ENOBUFS; | |
1006 | ||
1007 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
1008 | tcp->wake_payload_max)) | |
1009 | return -ENOBUFS; | |
1010 | ||
1011 | nla_nest_end(msg, nl_tcp); | |
1012 | return 0; | |
1013 | } | |
1014 | ||
3713b4e3 | 1015 | static int nl80211_send_wowlan(struct sk_buff *msg, |
1b8ec87a | 1016 | struct cfg80211_registered_device *rdev, |
b56cf720 | 1017 | bool large) |
55682965 | 1018 | { |
3713b4e3 | 1019 | struct nlattr *nl_wowlan; |
55682965 | 1020 | |
1b8ec87a | 1021 | if (!rdev->wiphy.wowlan) |
3713b4e3 | 1022 | return 0; |
55682965 | 1023 | |
3713b4e3 JB |
1024 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); |
1025 | if (!nl_wowlan) | |
1026 | return -ENOBUFS; | |
9360ffd1 | 1027 | |
1b8ec87a | 1028 | if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && |
3713b4e3 | 1029 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
1b8ec87a | 1030 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && |
3713b4e3 | 1031 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
1b8ec87a | 1032 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && |
3713b4e3 | 1033 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
1b8ec87a | 1034 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && |
3713b4e3 | 1035 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || |
1b8ec87a | 1036 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && |
3713b4e3 | 1037 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
1b8ec87a | 1038 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && |
3713b4e3 | 1039 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
1b8ec87a | 1040 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && |
3713b4e3 | 1041 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
1b8ec87a | 1042 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && |
3713b4e3 JB |
1043 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
1044 | return -ENOBUFS; | |
9360ffd1 | 1045 | |
1b8ec87a | 1046 | if (rdev->wiphy.wowlan->n_patterns) { |
50ac6607 | 1047 | struct nl80211_pattern_support pat = { |
1b8ec87a ZG |
1048 | .max_patterns = rdev->wiphy.wowlan->n_patterns, |
1049 | .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len, | |
1050 | .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len, | |
1051 | .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset, | |
3713b4e3 | 1052 | }; |
9360ffd1 | 1053 | |
3713b4e3 JB |
1054 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1055 | sizeof(pat), &pat)) | |
1056 | return -ENOBUFS; | |
1057 | } | |
9360ffd1 | 1058 | |
1b8ec87a | 1059 | if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) |
b56cf720 JB |
1060 | return -ENOBUFS; |
1061 | ||
3713b4e3 | 1062 | nla_nest_end(msg, nl_wowlan); |
9360ffd1 | 1063 | |
3713b4e3 JB |
1064 | return 0; |
1065 | } | |
1066 | #endif | |
9360ffd1 | 1067 | |
be29b99a | 1068 | static int nl80211_send_coalesce(struct sk_buff *msg, |
1b8ec87a | 1069 | struct cfg80211_registered_device *rdev) |
be29b99a AK |
1070 | { |
1071 | struct nl80211_coalesce_rule_support rule; | |
1072 | ||
1b8ec87a | 1073 | if (!rdev->wiphy.coalesce) |
be29b99a AK |
1074 | return 0; |
1075 | ||
1b8ec87a ZG |
1076 | rule.max_rules = rdev->wiphy.coalesce->n_rules; |
1077 | rule.max_delay = rdev->wiphy.coalesce->max_delay; | |
1078 | rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns; | |
1079 | rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len; | |
1080 | rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len; | |
1081 | rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset; | |
be29b99a AK |
1082 | |
1083 | if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) | |
1084 | return -ENOBUFS; | |
1085 | ||
1086 | return 0; | |
1087 | } | |
1088 | ||
3713b4e3 JB |
1089 | static int nl80211_send_band_rateinfo(struct sk_buff *msg, |
1090 | struct ieee80211_supported_band *sband) | |
1091 | { | |
1092 | struct nlattr *nl_rates, *nl_rate; | |
1093 | struct ieee80211_rate *rate; | |
1094 | int i; | |
87bbbe22 | 1095 | |
3713b4e3 JB |
1096 | /* add HT info */ |
1097 | if (sband->ht_cap.ht_supported && | |
1098 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
1099 | sizeof(sband->ht_cap.mcs), | |
1100 | &sband->ht_cap.mcs) || | |
1101 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
1102 | sband->ht_cap.cap) || | |
1103 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
1104 | sband->ht_cap.ampdu_factor) || | |
1105 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
1106 | sband->ht_cap.ampdu_density))) | |
1107 | return -ENOBUFS; | |
afe0cbf8 | 1108 | |
3713b4e3 JB |
1109 | /* add VHT info */ |
1110 | if (sband->vht_cap.vht_supported && | |
1111 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
1112 | sizeof(sband->vht_cap.vht_mcs), | |
1113 | &sband->vht_cap.vht_mcs) || | |
1114 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1115 | sband->vht_cap.cap))) | |
1116 | return -ENOBUFS; | |
f59ac048 | 1117 | |
3713b4e3 JB |
1118 | /* add bitrates */ |
1119 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1120 | if (!nl_rates) | |
1121 | return -ENOBUFS; | |
ee688b00 | 1122 | |
3713b4e3 JB |
1123 | for (i = 0; i < sband->n_bitrates; i++) { |
1124 | nl_rate = nla_nest_start(msg, i); | |
1125 | if (!nl_rate) | |
1126 | return -ENOBUFS; | |
ee688b00 | 1127 | |
3713b4e3 JB |
1128 | rate = &sband->bitrates[i]; |
1129 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, | |
1130 | rate->bitrate)) | |
1131 | return -ENOBUFS; | |
1132 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1133 | nla_put_flag(msg, | |
1134 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1135 | return -ENOBUFS; | |
ee688b00 | 1136 | |
3713b4e3 JB |
1137 | nla_nest_end(msg, nl_rate); |
1138 | } | |
d51626df | 1139 | |
3713b4e3 | 1140 | nla_nest_end(msg, nl_rates); |
bf0c111e | 1141 | |
3713b4e3 JB |
1142 | return 0; |
1143 | } | |
ee688b00 | 1144 | |
3713b4e3 JB |
1145 | static int |
1146 | nl80211_send_mgmt_stypes(struct sk_buff *msg, | |
1147 | const struct ieee80211_txrx_stypes *mgmt_stypes) | |
1148 | { | |
1149 | u16 stypes; | |
1150 | struct nlattr *nl_ftypes, *nl_ifs; | |
1151 | enum nl80211_iftype ift; | |
1152 | int i; | |
ee688b00 | 1153 | |
3713b4e3 JB |
1154 | if (!mgmt_stypes) |
1155 | return 0; | |
5dab3b8a | 1156 | |
3713b4e3 JB |
1157 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); |
1158 | if (!nl_ifs) | |
1159 | return -ENOBUFS; | |
e2f367f2 | 1160 | |
3713b4e3 JB |
1161 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1162 | nl_ftypes = nla_nest_start(msg, ift); | |
1163 | if (!nl_ftypes) | |
1164 | return -ENOBUFS; | |
1165 | i = 0; | |
1166 | stypes = mgmt_stypes[ift].tx; | |
1167 | while (stypes) { | |
1168 | if ((stypes & 1) && | |
1169 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1170 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1171 | return -ENOBUFS; | |
1172 | stypes >>= 1; | |
1173 | i++; | |
ee688b00 | 1174 | } |
3713b4e3 JB |
1175 | nla_nest_end(msg, nl_ftypes); |
1176 | } | |
ee688b00 | 1177 | |
3713b4e3 | 1178 | nla_nest_end(msg, nl_ifs); |
ee688b00 | 1179 | |
3713b4e3 JB |
1180 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1181 | if (!nl_ifs) | |
1182 | return -ENOBUFS; | |
ee688b00 | 1183 | |
3713b4e3 JB |
1184 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1185 | nl_ftypes = nla_nest_start(msg, ift); | |
1186 | if (!nl_ftypes) | |
1187 | return -ENOBUFS; | |
1188 | i = 0; | |
1189 | stypes = mgmt_stypes[ift].rx; | |
1190 | while (stypes) { | |
1191 | if ((stypes & 1) && | |
1192 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1193 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1194 | return -ENOBUFS; | |
1195 | stypes >>= 1; | |
1196 | i++; | |
1197 | } | |
1198 | nla_nest_end(msg, nl_ftypes); | |
1199 | } | |
1200 | nla_nest_end(msg, nl_ifs); | |
ee688b00 | 1201 | |
3713b4e3 JB |
1202 | return 0; |
1203 | } | |
ee688b00 | 1204 | |
86e8cf98 JB |
1205 | struct nl80211_dump_wiphy_state { |
1206 | s64 filter_wiphy; | |
1207 | long start; | |
1208 | long split_start, band_start, chan_start; | |
1209 | bool split; | |
1210 | }; | |
1211 | ||
1b8ec87a | 1212 | static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, |
3713b4e3 | 1213 | struct sk_buff *msg, u32 portid, u32 seq, |
86e8cf98 | 1214 | int flags, struct nl80211_dump_wiphy_state *state) |
3713b4e3 JB |
1215 | { |
1216 | void *hdr; | |
1217 | struct nlattr *nl_bands, *nl_band; | |
1218 | struct nlattr *nl_freqs, *nl_freq; | |
1219 | struct nlattr *nl_cmds; | |
1220 | enum ieee80211_band band; | |
1221 | struct ieee80211_channel *chan; | |
1222 | int i; | |
1223 | const struct ieee80211_txrx_stypes *mgmt_stypes = | |
1b8ec87a | 1224 | rdev->wiphy.mgmt_stypes; |
fe1abafd | 1225 | u32 features; |
ee688b00 | 1226 | |
3713b4e3 JB |
1227 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); |
1228 | if (!hdr) | |
1229 | return -ENOBUFS; | |
ee688b00 | 1230 | |
86e8cf98 JB |
1231 | if (WARN_ON(!state)) |
1232 | return -EINVAL; | |
ee688b00 | 1233 | |
1b8ec87a | 1234 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
3713b4e3 | 1235 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, |
1b8ec87a | 1236 | wiphy_name(&rdev->wiphy)) || |
3713b4e3 JB |
1237 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1238 | cfg80211_rdev_list_generation)) | |
8fdc621d JB |
1239 | goto nla_put_failure; |
1240 | ||
86e8cf98 | 1241 | switch (state->split_start) { |
3713b4e3 JB |
1242 | case 0: |
1243 | if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
1b8ec87a | 1244 | rdev->wiphy.retry_short) || |
3713b4e3 | 1245 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, |
1b8ec87a | 1246 | rdev->wiphy.retry_long) || |
3713b4e3 | 1247 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, |
1b8ec87a | 1248 | rdev->wiphy.frag_threshold) || |
3713b4e3 | 1249 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, |
1b8ec87a | 1250 | rdev->wiphy.rts_threshold) || |
3713b4e3 | 1251 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
1b8ec87a | 1252 | rdev->wiphy.coverage_class) || |
3713b4e3 | 1253 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
1b8ec87a | 1254 | rdev->wiphy.max_scan_ssids) || |
3713b4e3 | 1255 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, |
1b8ec87a | 1256 | rdev->wiphy.max_sched_scan_ssids) || |
3713b4e3 | 1257 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
1b8ec87a | 1258 | rdev->wiphy.max_scan_ie_len) || |
3713b4e3 | 1259 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, |
1b8ec87a | 1260 | rdev->wiphy.max_sched_scan_ie_len) || |
3713b4e3 | 1261 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, |
1b8ec87a | 1262 | rdev->wiphy.max_match_sets)) |
9360ffd1 | 1263 | goto nla_put_failure; |
3713b4e3 | 1264 | |
1b8ec87a | 1265 | if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && |
3713b4e3 | 1266 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) |
aa430da4 | 1267 | goto nla_put_failure; |
1b8ec87a | 1268 | if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && |
3713b4e3 JB |
1269 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) |
1270 | goto nla_put_failure; | |
1b8ec87a | 1271 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && |
3713b4e3 JB |
1272 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) |
1273 | goto nla_put_failure; | |
1b8ec87a | 1274 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && |
3713b4e3 JB |
1275 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) |
1276 | goto nla_put_failure; | |
1b8ec87a | 1277 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && |
3713b4e3 JB |
1278 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) |
1279 | goto nla_put_failure; | |
1b8ec87a | 1280 | if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && |
3713b4e3 | 1281 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) |
9360ffd1 | 1282 | goto nla_put_failure; |
86e8cf98 JB |
1283 | state->split_start++; |
1284 | if (state->split) | |
3713b4e3 JB |
1285 | break; |
1286 | case 1: | |
1287 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
1b8ec87a ZG |
1288 | sizeof(u32) * rdev->wiphy.n_cipher_suites, |
1289 | rdev->wiphy.cipher_suites)) | |
3713b4e3 | 1290 | goto nla_put_failure; |
4745fc09 | 1291 | |
3713b4e3 | 1292 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
1b8ec87a | 1293 | rdev->wiphy.max_num_pmkids)) |
3713b4e3 | 1294 | goto nla_put_failure; |
b23aa676 | 1295 | |
1b8ec87a | 1296 | if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
3713b4e3 | 1297 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) |
9360ffd1 | 1298 | goto nla_put_failure; |
b23aa676 | 1299 | |
3713b4e3 | 1300 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, |
1b8ec87a | 1301 | rdev->wiphy.available_antennas_tx) || |
3713b4e3 | 1302 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, |
1b8ec87a | 1303 | rdev->wiphy.available_antennas_rx)) |
9360ffd1 | 1304 | goto nla_put_failure; |
b23aa676 | 1305 | |
1b8ec87a | 1306 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && |
3713b4e3 | 1307 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, |
1b8ec87a | 1308 | rdev->wiphy.probe_resp_offload)) |
3713b4e3 | 1309 | goto nla_put_failure; |
8fdc621d | 1310 | |
1b8ec87a ZG |
1311 | if ((rdev->wiphy.available_antennas_tx || |
1312 | rdev->wiphy.available_antennas_rx) && | |
1313 | rdev->ops->get_antenna) { | |
3713b4e3 JB |
1314 | u32 tx_ant = 0, rx_ant = 0; |
1315 | int res; | |
1b8ec87a | 1316 | res = rdev_get_antenna(rdev, &tx_ant, &rx_ant); |
3713b4e3 JB |
1317 | if (!res) { |
1318 | if (nla_put_u32(msg, | |
1319 | NL80211_ATTR_WIPHY_ANTENNA_TX, | |
1320 | tx_ant) || | |
1321 | nla_put_u32(msg, | |
1322 | NL80211_ATTR_WIPHY_ANTENNA_RX, | |
1323 | rx_ant)) | |
1324 | goto nla_put_failure; | |
1325 | } | |
1326 | } | |
a293911d | 1327 | |
86e8cf98 JB |
1328 | state->split_start++; |
1329 | if (state->split) | |
3713b4e3 JB |
1330 | break; |
1331 | case 2: | |
1332 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, | |
1b8ec87a | 1333 | rdev->wiphy.interface_modes)) |
3713b4e3 | 1334 | goto nla_put_failure; |
86e8cf98 JB |
1335 | state->split_start++; |
1336 | if (state->split) | |
3713b4e3 JB |
1337 | break; |
1338 | case 3: | |
1339 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
1340 | if (!nl_bands) | |
1341 | goto nla_put_failure; | |
f7ca38df | 1342 | |
86e8cf98 JB |
1343 | for (band = state->band_start; |
1344 | band < IEEE80211_NUM_BANDS; band++) { | |
3713b4e3 | 1345 | struct ieee80211_supported_band *sband; |
2e161f78 | 1346 | |
1b8ec87a | 1347 | sband = rdev->wiphy.bands[band]; |
2e161f78 | 1348 | |
3713b4e3 JB |
1349 | if (!sband) |
1350 | continue; | |
1351 | ||
1352 | nl_band = nla_nest_start(msg, band); | |
1353 | if (!nl_band) | |
2e161f78 | 1354 | goto nla_put_failure; |
3713b4e3 | 1355 | |
86e8cf98 | 1356 | switch (state->chan_start) { |
3713b4e3 JB |
1357 | case 0: |
1358 | if (nl80211_send_band_rateinfo(msg, sband)) | |
9360ffd1 | 1359 | goto nla_put_failure; |
86e8cf98 JB |
1360 | state->chan_start++; |
1361 | if (state->split) | |
3713b4e3 JB |
1362 | break; |
1363 | default: | |
1364 | /* add frequencies */ | |
1365 | nl_freqs = nla_nest_start( | |
1366 | msg, NL80211_BAND_ATTR_FREQS); | |
1367 | if (!nl_freqs) | |
1368 | goto nla_put_failure; | |
1369 | ||
86e8cf98 | 1370 | for (i = state->chan_start - 1; |
3713b4e3 JB |
1371 | i < sband->n_channels; |
1372 | i++) { | |
1373 | nl_freq = nla_nest_start(msg, i); | |
1374 | if (!nl_freq) | |
1375 | goto nla_put_failure; | |
1376 | ||
1377 | chan = &sband->channels[i]; | |
1378 | ||
86e8cf98 JB |
1379 | if (nl80211_msg_put_channel( |
1380 | msg, chan, | |
1381 | state->split)) | |
3713b4e3 JB |
1382 | goto nla_put_failure; |
1383 | ||
1384 | nla_nest_end(msg, nl_freq); | |
86e8cf98 | 1385 | if (state->split) |
3713b4e3 JB |
1386 | break; |
1387 | } | |
1388 | if (i < sband->n_channels) | |
86e8cf98 | 1389 | state->chan_start = i + 2; |
3713b4e3 | 1390 | else |
86e8cf98 | 1391 | state->chan_start = 0; |
3713b4e3 JB |
1392 | nla_nest_end(msg, nl_freqs); |
1393 | } | |
1394 | ||
1395 | nla_nest_end(msg, nl_band); | |
1396 | ||
86e8cf98 | 1397 | if (state->split) { |
3713b4e3 | 1398 | /* start again here */ |
86e8cf98 | 1399 | if (state->chan_start) |
3713b4e3 JB |
1400 | band--; |
1401 | break; | |
2e161f78 | 1402 | } |
2e161f78 | 1403 | } |
3713b4e3 | 1404 | nla_nest_end(msg, nl_bands); |
2e161f78 | 1405 | |
3713b4e3 | 1406 | if (band < IEEE80211_NUM_BANDS) |
86e8cf98 | 1407 | state->band_start = band + 1; |
3713b4e3 | 1408 | else |
86e8cf98 | 1409 | state->band_start = 0; |
74b70a4e | 1410 | |
3713b4e3 | 1411 | /* if bands & channels are done, continue outside */ |
86e8cf98 JB |
1412 | if (state->band_start == 0 && state->chan_start == 0) |
1413 | state->split_start++; | |
1414 | if (state->split) | |
3713b4e3 JB |
1415 | break; |
1416 | case 4: | |
1417 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); | |
1418 | if (!nl_cmds) | |
2e161f78 JB |
1419 | goto nla_put_failure; |
1420 | ||
3713b4e3 JB |
1421 | i = 0; |
1422 | #define CMD(op, n) \ | |
1423 | do { \ | |
1b8ec87a | 1424 | if (rdev->ops->op) { \ |
3713b4e3 JB |
1425 | i++; \ |
1426 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ | |
1427 | goto nla_put_failure; \ | |
1428 | } \ | |
1429 | } while (0) | |
1430 | ||
1431 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1432 | CMD(change_virtual_intf, SET_INTERFACE); | |
1433 | CMD(add_key, NEW_KEY); | |
1434 | CMD(start_ap, START_AP); | |
1435 | CMD(add_station, NEW_STATION); | |
1436 | CMD(add_mpath, NEW_MPATH); | |
1437 | CMD(update_mesh_config, SET_MESH_CONFIG); | |
1438 | CMD(change_bss, SET_BSS); | |
1439 | CMD(auth, AUTHENTICATE); | |
1440 | CMD(assoc, ASSOCIATE); | |
1441 | CMD(deauth, DEAUTHENTICATE); | |
1442 | CMD(disassoc, DISASSOCIATE); | |
1443 | CMD(join_ibss, JOIN_IBSS); | |
1444 | CMD(join_mesh, JOIN_MESH); | |
1445 | CMD(set_pmksa, SET_PMKSA); | |
1446 | CMD(del_pmksa, DEL_PMKSA); | |
1447 | CMD(flush_pmksa, FLUSH_PMKSA); | |
1b8ec87a | 1448 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
3713b4e3 JB |
1449 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
1450 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); | |
1451 | CMD(mgmt_tx, FRAME); | |
1452 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); | |
1b8ec87a | 1453 | if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
3713b4e3 JB |
1454 | i++; |
1455 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) | |
2e161f78 | 1456 | goto nla_put_failure; |
2e161f78 | 1457 | } |
1b8ec87a ZG |
1458 | if (rdev->ops->set_monitor_channel || rdev->ops->start_ap || |
1459 | rdev->ops->join_mesh) { | |
3713b4e3 JB |
1460 | i++; |
1461 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1462 | goto nla_put_failure; | |
1463 | } | |
1464 | CMD(set_wds_peer, SET_WDS_PEER); | |
1b8ec87a | 1465 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
3713b4e3 JB |
1466 | CMD(tdls_mgmt, TDLS_MGMT); |
1467 | CMD(tdls_oper, TDLS_OPER); | |
1468 | } | |
1b8ec87a | 1469 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
3713b4e3 JB |
1470 | CMD(sched_scan_start, START_SCHED_SCAN); |
1471 | CMD(probe_client, PROBE_CLIENT); | |
1472 | CMD(set_noack_map, SET_NOACK_MAP); | |
1b8ec87a | 1473 | if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
3713b4e3 JB |
1474 | i++; |
1475 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) | |
1476 | goto nla_put_failure; | |
1477 | } | |
1478 | CMD(start_p2p_device, START_P2P_DEVICE); | |
1479 | CMD(set_mcast_rate, SET_MCAST_RATE); | |
86e8cf98 | 1480 | if (state->split) { |
5de17984 AS |
1481 | CMD(crit_proto_start, CRIT_PROTOCOL_START); |
1482 | CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); | |
1b8ec87a | 1483 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) |
16ef1fe2 | 1484 | CMD(channel_switch, CHANNEL_SWITCH); |
5de17984 | 1485 | } |
fa9ffc74 | 1486 | CMD(set_qos_map, SET_QOS_MAP); |
2e161f78 | 1487 | |
3713b4e3 JB |
1488 | #ifdef CONFIG_NL80211_TESTMODE |
1489 | CMD(testmode_cmd, TESTMODE); | |
1490 | #endif | |
ff1b6e69 | 1491 | |
3713b4e3 | 1492 | #undef CMD |
ff1b6e69 | 1493 | |
1b8ec87a | 1494 | if (rdev->ops->connect || rdev->ops->auth) { |
3713b4e3 JB |
1495 | i++; |
1496 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) | |
9360ffd1 | 1497 | goto nla_put_failure; |
ff1b6e69 JB |
1498 | } |
1499 | ||
1b8ec87a | 1500 | if (rdev->ops->disconnect || rdev->ops->deauth) { |
3713b4e3 JB |
1501 | i++; |
1502 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) | |
1503 | goto nla_put_failure; | |
1504 | } | |
1505 | ||
1506 | nla_nest_end(msg, nl_cmds); | |
86e8cf98 JB |
1507 | state->split_start++; |
1508 | if (state->split) | |
3713b4e3 JB |
1509 | break; |
1510 | case 5: | |
1b8ec87a ZG |
1511 | if (rdev->ops->remain_on_channel && |
1512 | (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && | |
3713b4e3 JB |
1513 | nla_put_u32(msg, |
1514 | NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1b8ec87a | 1515 | rdev->wiphy.max_remain_on_channel_duration)) |
3713b4e3 JB |
1516 | goto nla_put_failure; |
1517 | ||
1b8ec87a | 1518 | if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
3713b4e3 JB |
1519 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) |
1520 | goto nla_put_failure; | |
1521 | ||
1522 | if (nl80211_send_mgmt_stypes(msg, mgmt_stypes)) | |
1523 | goto nla_put_failure; | |
86e8cf98 JB |
1524 | state->split_start++; |
1525 | if (state->split) | |
3713b4e3 JB |
1526 | break; |
1527 | case 6: | |
1528 | #ifdef CONFIG_PM | |
1b8ec87a | 1529 | if (nl80211_send_wowlan(msg, rdev, state->split)) |
3713b4e3 | 1530 | goto nla_put_failure; |
86e8cf98 JB |
1531 | state->split_start++; |
1532 | if (state->split) | |
3713b4e3 JB |
1533 | break; |
1534 | #else | |
86e8cf98 | 1535 | state->split_start++; |
dfb89c56 | 1536 | #endif |
3713b4e3 JB |
1537 | case 7: |
1538 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, | |
1b8ec87a | 1539 | rdev->wiphy.software_iftypes)) |
3713b4e3 | 1540 | goto nla_put_failure; |
ff1b6e69 | 1541 | |
1b8ec87a | 1542 | if (nl80211_put_iface_combinations(&rdev->wiphy, msg, |
86e8cf98 | 1543 | state->split)) |
3713b4e3 | 1544 | goto nla_put_failure; |
7527a782 | 1545 | |
86e8cf98 JB |
1546 | state->split_start++; |
1547 | if (state->split) | |
3713b4e3 JB |
1548 | break; |
1549 | case 8: | |
1b8ec87a | 1550 | if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
3713b4e3 | 1551 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, |
1b8ec87a | 1552 | rdev->wiphy.ap_sme_capa)) |
3713b4e3 | 1553 | goto nla_put_failure; |
7527a782 | 1554 | |
1b8ec87a | 1555 | features = rdev->wiphy.features; |
fe1abafd JB |
1556 | /* |
1557 | * We can only add the per-channel limit information if the | |
1558 | * dump is split, otherwise it makes it too big. Therefore | |
1559 | * only advertise it in that case. | |
1560 | */ | |
86e8cf98 | 1561 | if (state->split) |
fe1abafd JB |
1562 | features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS; |
1563 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) | |
3713b4e3 | 1564 | goto nla_put_failure; |
562a7480 | 1565 | |
1b8ec87a | 1566 | if (rdev->wiphy.ht_capa_mod_mask && |
3713b4e3 | 1567 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, |
1b8ec87a ZG |
1568 | sizeof(*rdev->wiphy.ht_capa_mod_mask), |
1569 | rdev->wiphy.ht_capa_mod_mask)) | |
3713b4e3 | 1570 | goto nla_put_failure; |
1f074bd8 | 1571 | |
1b8ec87a ZG |
1572 | if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && |
1573 | rdev->wiphy.max_acl_mac_addrs && | |
3713b4e3 | 1574 | nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, |
1b8ec87a | 1575 | rdev->wiphy.max_acl_mac_addrs)) |
3713b4e3 | 1576 | goto nla_put_failure; |
7e7c8926 | 1577 | |
3713b4e3 JB |
1578 | /* |
1579 | * Any information below this point is only available to | |
1580 | * applications that can deal with it being split. This | |
1581 | * helps ensure that newly added capabilities don't break | |
1582 | * older tools by overrunning their buffers. | |
1583 | * | |
1584 | * We still increment split_start so that in the split | |
1585 | * case we'll continue with more data in the next round, | |
1586 | * but break unconditionally so unsplit data stops here. | |
1587 | */ | |
86e8cf98 | 1588 | state->split_start++; |
3713b4e3 JB |
1589 | break; |
1590 | case 9: | |
1b8ec87a | 1591 | if (rdev->wiphy.extended_capabilities && |
fe1abafd | 1592 | (nla_put(msg, NL80211_ATTR_EXT_CAPA, |
1b8ec87a ZG |
1593 | rdev->wiphy.extended_capabilities_len, |
1594 | rdev->wiphy.extended_capabilities) || | |
fe1abafd | 1595 | nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, |
1b8ec87a ZG |
1596 | rdev->wiphy.extended_capabilities_len, |
1597 | rdev->wiphy.extended_capabilities_mask))) | |
fe1abafd | 1598 | goto nla_put_failure; |
a50df0c4 | 1599 | |
1b8ec87a | 1600 | if (rdev->wiphy.vht_capa_mod_mask && |
ee2aca34 | 1601 | nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, |
1b8ec87a ZG |
1602 | sizeof(*rdev->wiphy.vht_capa_mod_mask), |
1603 | rdev->wiphy.vht_capa_mod_mask)) | |
ee2aca34 JB |
1604 | goto nla_put_failure; |
1605 | ||
be29b99a AK |
1606 | state->split_start++; |
1607 | break; | |
1608 | case 10: | |
1b8ec87a | 1609 | if (nl80211_send_coalesce(msg, rdev)) |
be29b99a AK |
1610 | goto nla_put_failure; |
1611 | ||
1b8ec87a | 1612 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && |
01e0daa4 FF |
1613 | (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) || |
1614 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ))) | |
1615 | goto nla_put_failure; | |
b43504cf | 1616 | |
1b8ec87a | 1617 | if (rdev->wiphy.max_ap_assoc_sta && |
b43504cf | 1618 | nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA, |
1b8ec87a | 1619 | rdev->wiphy.max_ap_assoc_sta)) |
b43504cf JM |
1620 | goto nla_put_failure; |
1621 | ||
ad7e718c JB |
1622 | state->split_start++; |
1623 | break; | |
1624 | case 11: | |
1b8ec87a | 1625 | if (rdev->wiphy.n_vendor_commands) { |
567ffc35 JB |
1626 | const struct nl80211_vendor_cmd_info *info; |
1627 | struct nlattr *nested; | |
1628 | ||
1629 | nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); | |
1630 | if (!nested) | |
1631 | goto nla_put_failure; | |
1632 | ||
1b8ec87a ZG |
1633 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { |
1634 | info = &rdev->wiphy.vendor_commands[i].info; | |
567ffc35 JB |
1635 | if (nla_put(msg, i + 1, sizeof(*info), info)) |
1636 | goto nla_put_failure; | |
1637 | } | |
1638 | nla_nest_end(msg, nested); | |
1639 | } | |
1640 | ||
1b8ec87a | 1641 | if (rdev->wiphy.n_vendor_events) { |
567ffc35 JB |
1642 | const struct nl80211_vendor_cmd_info *info; |
1643 | struct nlattr *nested; | |
ad7e718c | 1644 | |
567ffc35 JB |
1645 | nested = nla_nest_start(msg, |
1646 | NL80211_ATTR_VENDOR_EVENTS); | |
1647 | if (!nested) | |
ad7e718c | 1648 | goto nla_put_failure; |
567ffc35 | 1649 | |
1b8ec87a ZG |
1650 | for (i = 0; i < rdev->wiphy.n_vendor_events; i++) { |
1651 | info = &rdev->wiphy.vendor_events[i]; | |
567ffc35 JB |
1652 | if (nla_put(msg, i + 1, sizeof(*info), info)) |
1653 | goto nla_put_failure; | |
1654 | } | |
1655 | nla_nest_end(msg, nested); | |
1656 | } | |
01e0daa4 | 1657 | |
3713b4e3 | 1658 | /* done */ |
86e8cf98 | 1659 | state->split_start = 0; |
3713b4e3 JB |
1660 | break; |
1661 | } | |
55682965 JB |
1662 | return genlmsg_end(msg, hdr); |
1663 | ||
1664 | nla_put_failure: | |
bc3ed28c TG |
1665 | genlmsg_cancel(msg, hdr); |
1666 | return -EMSGSIZE; | |
55682965 JB |
1667 | } |
1668 | ||
86e8cf98 JB |
1669 | static int nl80211_dump_wiphy_parse(struct sk_buff *skb, |
1670 | struct netlink_callback *cb, | |
1671 | struct nl80211_dump_wiphy_state *state) | |
1672 | { | |
1673 | struct nlattr **tb = nl80211_fam.attrbuf; | |
1674 | int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1675 | tb, nl80211_fam.maxattr, nl80211_policy); | |
1676 | /* ignore parse errors for backward compatibility */ | |
1677 | if (ret) | |
1678 | return 0; | |
1679 | ||
1680 | state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; | |
1681 | if (tb[NL80211_ATTR_WIPHY]) | |
1682 | state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); | |
1683 | if (tb[NL80211_ATTR_WDEV]) | |
1684 | state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32; | |
1685 | if (tb[NL80211_ATTR_IFINDEX]) { | |
1686 | struct net_device *netdev; | |
1687 | struct cfg80211_registered_device *rdev; | |
1688 | int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
1689 | ||
7f2b8562 | 1690 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
86e8cf98 JB |
1691 | if (!netdev) |
1692 | return -ENODEV; | |
1693 | if (netdev->ieee80211_ptr) { | |
f26cbf40 | 1694 | rdev = wiphy_to_rdev( |
86e8cf98 JB |
1695 | netdev->ieee80211_ptr->wiphy); |
1696 | state->filter_wiphy = rdev->wiphy_idx; | |
1697 | } | |
86e8cf98 JB |
1698 | } |
1699 | ||
1700 | return 0; | |
1701 | } | |
1702 | ||
55682965 JB |
1703 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) |
1704 | { | |
645e77de | 1705 | int idx = 0, ret; |
86e8cf98 | 1706 | struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; |
1b8ec87a | 1707 | struct cfg80211_registered_device *rdev; |
3a5a423b | 1708 | |
5fe231e8 | 1709 | rtnl_lock(); |
86e8cf98 JB |
1710 | if (!state) { |
1711 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
57ed5cd6 JL |
1712 | if (!state) { |
1713 | rtnl_unlock(); | |
86e8cf98 | 1714 | return -ENOMEM; |
3713b4e3 | 1715 | } |
86e8cf98 JB |
1716 | state->filter_wiphy = -1; |
1717 | ret = nl80211_dump_wiphy_parse(skb, cb, state); | |
1718 | if (ret) { | |
1719 | kfree(state); | |
1720 | rtnl_unlock(); | |
1721 | return ret; | |
3713b4e3 | 1722 | } |
86e8cf98 | 1723 | cb->args[0] = (long)state; |
3713b4e3 JB |
1724 | } |
1725 | ||
1b8ec87a ZG |
1726 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1727 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1728 | continue; |
86e8cf98 | 1729 | if (++idx <= state->start) |
55682965 | 1730 | continue; |
86e8cf98 | 1731 | if (state->filter_wiphy != -1 && |
1b8ec87a | 1732 | state->filter_wiphy != rdev->wiphy_idx) |
3713b4e3 JB |
1733 | continue; |
1734 | /* attempt to fit multiple wiphy data chunks into the skb */ | |
1735 | do { | |
1b8ec87a | 1736 | ret = nl80211_send_wiphy(rdev, skb, |
3713b4e3 JB |
1737 | NETLINK_CB(cb->skb).portid, |
1738 | cb->nlh->nlmsg_seq, | |
86e8cf98 | 1739 | NLM_F_MULTI, state); |
3713b4e3 JB |
1740 | if (ret < 0) { |
1741 | /* | |
1742 | * If sending the wiphy data didn't fit (ENOBUFS | |
1743 | * or EMSGSIZE returned), this SKB is still | |
1744 | * empty (so it's not too big because another | |
1745 | * wiphy dataset is already in the skb) and | |
1746 | * we've not tried to adjust the dump allocation | |
1747 | * yet ... then adjust the alloc size to be | |
1748 | * bigger, and return 1 but with the empty skb. | |
1749 | * This results in an empty message being RX'ed | |
1750 | * in userspace, but that is ignored. | |
1751 | * | |
1752 | * We can then retry with the larger buffer. | |
1753 | */ | |
1754 | if ((ret == -ENOBUFS || ret == -EMSGSIZE) && | |
f12cb289 | 1755 | !skb->len && !state->split && |
3713b4e3 JB |
1756 | cb->min_dump_alloc < 4096) { |
1757 | cb->min_dump_alloc = 4096; | |
f12cb289 | 1758 | state->split_start = 0; |
d98cae64 | 1759 | rtnl_unlock(); |
3713b4e3 JB |
1760 | return 1; |
1761 | } | |
1762 | idx--; | |
1763 | break; | |
645e77de | 1764 | } |
86e8cf98 | 1765 | } while (state->split_start > 0); |
3713b4e3 | 1766 | break; |
55682965 | 1767 | } |
5fe231e8 | 1768 | rtnl_unlock(); |
55682965 | 1769 | |
86e8cf98 | 1770 | state->start = idx; |
55682965 JB |
1771 | |
1772 | return skb->len; | |
1773 | } | |
1774 | ||
86e8cf98 JB |
1775 | static int nl80211_dump_wiphy_done(struct netlink_callback *cb) |
1776 | { | |
1777 | kfree((void *)cb->args[0]); | |
1778 | return 0; | |
1779 | } | |
1780 | ||
55682965 JB |
1781 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) |
1782 | { | |
1783 | struct sk_buff *msg; | |
1b8ec87a | 1784 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
86e8cf98 | 1785 | struct nl80211_dump_wiphy_state state = {}; |
55682965 | 1786 | |
645e77de | 1787 | msg = nlmsg_new(4096, GFP_KERNEL); |
55682965 | 1788 | if (!msg) |
4c476991 | 1789 | return -ENOMEM; |
55682965 | 1790 | |
1b8ec87a | 1791 | if (nl80211_send_wiphy(rdev, msg, info->snd_portid, info->snd_seq, 0, |
86e8cf98 | 1792 | &state) < 0) { |
4c476991 JB |
1793 | nlmsg_free(msg); |
1794 | return -ENOBUFS; | |
1795 | } | |
55682965 | 1796 | |
134e6375 | 1797 | return genlmsg_reply(msg, info); |
55682965 JB |
1798 | } |
1799 | ||
31888487 JM |
1800 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1801 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1802 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1803 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1804 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1805 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1806 | }; | |
1807 | ||
1808 | static int parse_txq_params(struct nlattr *tb[], | |
1809 | struct ieee80211_txq_params *txq_params) | |
1810 | { | |
a3304b0a | 1811 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1812 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1813 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1814 | return -EINVAL; | |
1815 | ||
a3304b0a | 1816 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1817 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1818 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1819 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1820 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1821 | ||
a3304b0a JB |
1822 | if (txq_params->ac >= NL80211_NUM_ACS) |
1823 | return -EINVAL; | |
1824 | ||
31888487 JM |
1825 | return 0; |
1826 | } | |
1827 | ||
f444de05 JB |
1828 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1829 | { | |
1830 | /* | |
cc1d2806 JB |
1831 | * You can only set the channel explicitly for WDS interfaces, |
1832 | * all others have their channel managed via their respective | |
1833 | * "establish a connection" command (connect, join, ...) | |
1834 | * | |
1835 | * For AP/GO and mesh mode, the channel can be set with the | |
1836 | * channel userspace API, but is only stored and passed to the | |
1837 | * low-level driver when the AP starts or the mesh is joined. | |
1838 | * This is for backward compatibility, userspace can also give | |
1839 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1840 | * |
1841 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1842 | * whatever else is going on, so they have their own special |
1843 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1844 | */ |
1845 | return !wdev || | |
1846 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1847 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1848 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1849 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1850 | } |
1851 | ||
683b6d3b JB |
1852 | static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, |
1853 | struct genl_info *info, | |
1854 | struct cfg80211_chan_def *chandef) | |
1855 | { | |
dbeca2ea | 1856 | u32 control_freq; |
683b6d3b JB |
1857 | |
1858 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1859 | return -EINVAL; | |
1860 | ||
1861 | control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1862 | ||
1863 | chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); | |
3d9d1d66 JB |
1864 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; |
1865 | chandef->center_freq1 = control_freq; | |
1866 | chandef->center_freq2 = 0; | |
683b6d3b JB |
1867 | |
1868 | /* Primary channel not allowed */ | |
1869 | if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) | |
1870 | return -EINVAL; | |
1871 | ||
3d9d1d66 JB |
1872 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
1873 | enum nl80211_channel_type chantype; | |
1874 | ||
1875 | chantype = nla_get_u32( | |
1876 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1877 | ||
1878 | switch (chantype) { | |
1879 | case NL80211_CHAN_NO_HT: | |
1880 | case NL80211_CHAN_HT20: | |
1881 | case NL80211_CHAN_HT40PLUS: | |
1882 | case NL80211_CHAN_HT40MINUS: | |
1883 | cfg80211_chandef_create(chandef, chandef->chan, | |
1884 | chantype); | |
1885 | break; | |
1886 | default: | |
1887 | return -EINVAL; | |
1888 | } | |
1889 | } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) { | |
1890 | chandef->width = | |
1891 | nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]); | |
1892 | if (info->attrs[NL80211_ATTR_CENTER_FREQ1]) | |
1893 | chandef->center_freq1 = | |
1894 | nla_get_u32( | |
1895 | info->attrs[NL80211_ATTR_CENTER_FREQ1]); | |
1896 | if (info->attrs[NL80211_ATTR_CENTER_FREQ2]) | |
1897 | chandef->center_freq2 = | |
1898 | nla_get_u32( | |
1899 | info->attrs[NL80211_ATTR_CENTER_FREQ2]); | |
1900 | } | |
1901 | ||
9f5e8f6e | 1902 | if (!cfg80211_chandef_valid(chandef)) |
3d9d1d66 JB |
1903 | return -EINVAL; |
1904 | ||
9f5e8f6e JB |
1905 | if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, |
1906 | IEEE80211_CHAN_DISABLED)) | |
3d9d1d66 JB |
1907 | return -EINVAL; |
1908 | ||
2f301ab2 SW |
1909 | if ((chandef->width == NL80211_CHAN_WIDTH_5 || |
1910 | chandef->width == NL80211_CHAN_WIDTH_10) && | |
1911 | !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) | |
1912 | return -EINVAL; | |
1913 | ||
683b6d3b JB |
1914 | return 0; |
1915 | } | |
1916 | ||
f444de05 JB |
1917 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
1918 | struct wireless_dev *wdev, | |
1919 | struct genl_info *info) | |
1920 | { | |
683b6d3b | 1921 | struct cfg80211_chan_def chandef; |
f444de05 | 1922 | int result; |
e8c9bd5b JB |
1923 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
1924 | ||
1925 | if (wdev) | |
1926 | iftype = wdev->iftype; | |
f444de05 | 1927 | |
f444de05 JB |
1928 | if (!nl80211_can_set_dev_channel(wdev)) |
1929 | return -EOPNOTSUPP; | |
1930 | ||
683b6d3b JB |
1931 | result = nl80211_parse_chandef(rdev, info, &chandef); |
1932 | if (result) | |
1933 | return result; | |
f444de05 | 1934 | |
e8c9bd5b | 1935 | switch (iftype) { |
aa430da4 JB |
1936 | case NL80211_IFTYPE_AP: |
1937 | case NL80211_IFTYPE_P2P_GO: | |
1938 | if (wdev->beacon_interval) { | |
1939 | result = -EBUSY; | |
1940 | break; | |
1941 | } | |
174e0cd2 | 1942 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) { |
aa430da4 JB |
1943 | result = -EINVAL; |
1944 | break; | |
1945 | } | |
683b6d3b | 1946 | wdev->preset_chandef = chandef; |
aa430da4 JB |
1947 | result = 0; |
1948 | break; | |
cc1d2806 | 1949 | case NL80211_IFTYPE_MESH_POINT: |
683b6d3b | 1950 | result = cfg80211_set_mesh_channel(rdev, wdev, &chandef); |
cc1d2806 | 1951 | break; |
e8c9bd5b | 1952 | case NL80211_IFTYPE_MONITOR: |
683b6d3b | 1953 | result = cfg80211_set_monitor_channel(rdev, &chandef); |
e8c9bd5b | 1954 | break; |
aa430da4 | 1955 | default: |
e8c9bd5b | 1956 | result = -EINVAL; |
f444de05 | 1957 | } |
f444de05 JB |
1958 | |
1959 | return result; | |
1960 | } | |
1961 | ||
1962 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
1963 | { | |
4c476991 JB |
1964 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1965 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 1966 | |
4c476991 | 1967 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
1968 | } |
1969 | ||
e8347eba BJ |
1970 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
1971 | { | |
43b19952 JB |
1972 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1973 | struct net_device *dev = info->user_ptr[1]; | |
1974 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 1975 | const u8 *bssid; |
e8347eba BJ |
1976 | |
1977 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1978 | return -EINVAL; | |
1979 | ||
43b19952 JB |
1980 | if (netif_running(dev)) |
1981 | return -EBUSY; | |
e8347eba | 1982 | |
43b19952 JB |
1983 | if (!rdev->ops->set_wds_peer) |
1984 | return -EOPNOTSUPP; | |
e8347eba | 1985 | |
43b19952 JB |
1986 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
1987 | return -EOPNOTSUPP; | |
e8347eba BJ |
1988 | |
1989 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
e35e4d28 | 1990 | return rdev_set_wds_peer(rdev, dev, bssid); |
e8347eba BJ |
1991 | } |
1992 | ||
1993 | ||
55682965 JB |
1994 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
1995 | { | |
1996 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
1997 | struct net_device *netdev = NULL; |
1998 | struct wireless_dev *wdev; | |
a1e567c8 | 1999 | int result = 0, rem_txq_params = 0; |
31888487 | 2000 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
2001 | u32 changed; |
2002 | u8 retry_short = 0, retry_long = 0; | |
2003 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 2004 | u8 coverage_class = 0; |
55682965 | 2005 | |
5fe231e8 JB |
2006 | ASSERT_RTNL(); |
2007 | ||
f444de05 JB |
2008 | /* |
2009 | * Try to find the wiphy and netdev. Normally this | |
2010 | * function shouldn't need the netdev, but this is | |
2011 | * done for backward compatibility -- previously | |
2012 | * setting the channel was done per wiphy, but now | |
2013 | * it is per netdev. Previous userland like hostapd | |
2014 | * also passed a netdev to set_wiphy, so that it is | |
2015 | * possible to let that go to the right netdev! | |
2016 | */ | |
4bbf4d56 | 2017 | |
f444de05 JB |
2018 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
2019 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
2020 | ||
7f2b8562 | 2021 | netdev = __dev_get_by_index(genl_info_net(info), ifindex); |
5fe231e8 | 2022 | if (netdev && netdev->ieee80211_ptr) |
f26cbf40 | 2023 | rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy); |
5fe231e8 | 2024 | else |
f444de05 | 2025 | netdev = NULL; |
4bbf4d56 JB |
2026 | } |
2027 | ||
f444de05 | 2028 | if (!netdev) { |
878d9ec7 JB |
2029 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
2030 | info->attrs); | |
5fe231e8 | 2031 | if (IS_ERR(rdev)) |
4c476991 | 2032 | return PTR_ERR(rdev); |
f444de05 JB |
2033 | wdev = NULL; |
2034 | netdev = NULL; | |
2035 | result = 0; | |
71fe96bf | 2036 | } else |
f444de05 | 2037 | wdev = netdev->ieee80211_ptr; |
f444de05 JB |
2038 | |
2039 | /* | |
2040 | * end workaround code, by now the rdev is available | |
2041 | * and locked, and wdev may or may not be NULL. | |
2042 | */ | |
4bbf4d56 JB |
2043 | |
2044 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
2045 | result = cfg80211_dev_rename( |
2046 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 | 2047 | |
4bbf4d56 | 2048 | if (result) |
7f2b8562 | 2049 | return result; |
31888487 JM |
2050 | |
2051 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
2052 | struct ieee80211_txq_params txq_params; | |
2053 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
2054 | ||
7f2b8562 YX |
2055 | if (!rdev->ops->set_txq_params) |
2056 | return -EOPNOTSUPP; | |
31888487 | 2057 | |
7f2b8562 YX |
2058 | if (!netdev) |
2059 | return -EINVAL; | |
f70f01c2 | 2060 | |
133a3ff2 | 2061 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
7f2b8562 YX |
2062 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2063 | return -EINVAL; | |
133a3ff2 | 2064 | |
7f2b8562 YX |
2065 | if (!netif_running(netdev)) |
2066 | return -ENETDOWN; | |
2b5f8b0b | 2067 | |
31888487 JM |
2068 | nla_for_each_nested(nl_txq_params, |
2069 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
2070 | rem_txq_params) { | |
ae811e21 JB |
2071 | result = nla_parse(tb, NL80211_TXQ_ATTR_MAX, |
2072 | nla_data(nl_txq_params), | |
2073 | nla_len(nl_txq_params), | |
2074 | txq_params_policy); | |
2075 | if (result) | |
2076 | return result; | |
31888487 JM |
2077 | result = parse_txq_params(tb, &txq_params); |
2078 | if (result) | |
7f2b8562 | 2079 | return result; |
31888487 | 2080 | |
e35e4d28 HG |
2081 | result = rdev_set_txq_params(rdev, netdev, |
2082 | &txq_params); | |
31888487 | 2083 | if (result) |
7f2b8562 | 2084 | return result; |
31888487 JM |
2085 | } |
2086 | } | |
55682965 | 2087 | |
72bdcf34 | 2088 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
71fe96bf JB |
2089 | result = __nl80211_set_channel(rdev, |
2090 | nl80211_can_set_dev_channel(wdev) ? wdev : NULL, | |
2091 | info); | |
72bdcf34 | 2092 | if (result) |
7f2b8562 | 2093 | return result; |
72bdcf34 JM |
2094 | } |
2095 | ||
98d2ff8b | 2096 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
c8442118 | 2097 | struct wireless_dev *txp_wdev = wdev; |
98d2ff8b JO |
2098 | enum nl80211_tx_power_setting type; |
2099 | int idx, mbm = 0; | |
2100 | ||
c8442118 JB |
2101 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
2102 | txp_wdev = NULL; | |
2103 | ||
7f2b8562 YX |
2104 | if (!rdev->ops->set_tx_power) |
2105 | return -EOPNOTSUPP; | |
98d2ff8b JO |
2106 | |
2107 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
2108 | type = nla_get_u32(info->attrs[idx]); | |
2109 | ||
2110 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
7f2b8562 YX |
2111 | (type != NL80211_TX_POWER_AUTOMATIC)) |
2112 | return -EINVAL; | |
98d2ff8b JO |
2113 | |
2114 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
2115 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
2116 | mbm = nla_get_u32(info->attrs[idx]); | |
2117 | } | |
2118 | ||
c8442118 | 2119 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
98d2ff8b | 2120 | if (result) |
7f2b8562 | 2121 | return result; |
98d2ff8b JO |
2122 | } |
2123 | ||
afe0cbf8 BR |
2124 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
2125 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
2126 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
2127 | if ((!rdev->wiphy.available_antennas_tx && |
2128 | !rdev->wiphy.available_antennas_rx) || | |
7f2b8562 YX |
2129 | !rdev->ops->set_antenna) |
2130 | return -EOPNOTSUPP; | |
afe0cbf8 BR |
2131 | |
2132 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
2133 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
2134 | ||
a7ffac95 | 2135 | /* reject antenna configurations which don't match the |
7f531e03 BR |
2136 | * available antenna masks, except for the "all" mask */ |
2137 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
7f2b8562 YX |
2138 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) |
2139 | return -EINVAL; | |
a7ffac95 | 2140 | |
7f531e03 BR |
2141 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
2142 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 2143 | |
e35e4d28 | 2144 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
afe0cbf8 | 2145 | if (result) |
7f2b8562 | 2146 | return result; |
afe0cbf8 BR |
2147 | } |
2148 | ||
b9a5f8ca JM |
2149 | changed = 0; |
2150 | ||
2151 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
2152 | retry_short = nla_get_u8( | |
2153 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
7f2b8562 YX |
2154 | if (retry_short == 0) |
2155 | return -EINVAL; | |
2156 | ||
b9a5f8ca JM |
2157 | changed |= WIPHY_PARAM_RETRY_SHORT; |
2158 | } | |
2159 | ||
2160 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
2161 | retry_long = nla_get_u8( | |
2162 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
7f2b8562 YX |
2163 | if (retry_long == 0) |
2164 | return -EINVAL; | |
2165 | ||
b9a5f8ca JM |
2166 | changed |= WIPHY_PARAM_RETRY_LONG; |
2167 | } | |
2168 | ||
2169 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
2170 | frag_threshold = nla_get_u32( | |
2171 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
7f2b8562 YX |
2172 | if (frag_threshold < 256) |
2173 | return -EINVAL; | |
2174 | ||
b9a5f8ca JM |
2175 | if (frag_threshold != (u32) -1) { |
2176 | /* | |
2177 | * Fragments (apart from the last one) are required to | |
2178 | * have even length. Make the fragmentation code | |
2179 | * simpler by stripping LSB should someone try to use | |
2180 | * odd threshold value. | |
2181 | */ | |
2182 | frag_threshold &= ~0x1; | |
2183 | } | |
2184 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
2185 | } | |
2186 | ||
2187 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
2188 | rts_threshold = nla_get_u32( | |
2189 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
2190 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
2191 | } | |
2192 | ||
81077e82 LT |
2193 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
2194 | coverage_class = nla_get_u8( | |
2195 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
2196 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
2197 | } | |
2198 | ||
b9a5f8ca JM |
2199 | if (changed) { |
2200 | u8 old_retry_short, old_retry_long; | |
2201 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 2202 | u8 old_coverage_class; |
b9a5f8ca | 2203 | |
7f2b8562 YX |
2204 | if (!rdev->ops->set_wiphy_params) |
2205 | return -EOPNOTSUPP; | |
b9a5f8ca JM |
2206 | |
2207 | old_retry_short = rdev->wiphy.retry_short; | |
2208 | old_retry_long = rdev->wiphy.retry_long; | |
2209 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
2210 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 2211 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
2212 | |
2213 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
2214 | rdev->wiphy.retry_short = retry_short; | |
2215 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
2216 | rdev->wiphy.retry_long = retry_long; | |
2217 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
2218 | rdev->wiphy.frag_threshold = frag_threshold; | |
2219 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
2220 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
2221 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
2222 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca | 2223 | |
e35e4d28 | 2224 | result = rdev_set_wiphy_params(rdev, changed); |
b9a5f8ca JM |
2225 | if (result) { |
2226 | rdev->wiphy.retry_short = old_retry_short; | |
2227 | rdev->wiphy.retry_long = old_retry_long; | |
2228 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
2229 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 2230 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
2231 | } |
2232 | } | |
7f2b8562 | 2233 | return 0; |
55682965 JB |
2234 | } |
2235 | ||
71bbc994 JB |
2236 | static inline u64 wdev_id(struct wireless_dev *wdev) |
2237 | { | |
2238 | return (u64)wdev->identifier | | |
f26cbf40 | 2239 | ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32); |
71bbc994 | 2240 | } |
55682965 | 2241 | |
683b6d3b | 2242 | static int nl80211_send_chandef(struct sk_buff *msg, |
d2859df5 | 2243 | const struct cfg80211_chan_def *chandef) |
683b6d3b | 2244 | { |
9f5e8f6e | 2245 | WARN_ON(!cfg80211_chandef_valid(chandef)); |
3d9d1d66 | 2246 | |
683b6d3b JB |
2247 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
2248 | chandef->chan->center_freq)) | |
2249 | return -ENOBUFS; | |
3d9d1d66 JB |
2250 | switch (chandef->width) { |
2251 | case NL80211_CHAN_WIDTH_20_NOHT: | |
2252 | case NL80211_CHAN_WIDTH_20: | |
2253 | case NL80211_CHAN_WIDTH_40: | |
2254 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
2255 | cfg80211_get_chandef_type(chandef))) | |
2256 | return -ENOBUFS; | |
2257 | break; | |
2258 | default: | |
2259 | break; | |
2260 | } | |
2261 | if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) | |
2262 | return -ENOBUFS; | |
2263 | if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) | |
2264 | return -ENOBUFS; | |
2265 | if (chandef->center_freq2 && | |
2266 | nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) | |
683b6d3b JB |
2267 | return -ENOBUFS; |
2268 | return 0; | |
2269 | } | |
2270 | ||
15e47304 | 2271 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
d726405a | 2272 | struct cfg80211_registered_device *rdev, |
72fb2abc | 2273 | struct wireless_dev *wdev) |
55682965 | 2274 | { |
72fb2abc | 2275 | struct net_device *dev = wdev->netdev; |
55682965 JB |
2276 | void *hdr; |
2277 | ||
15e47304 | 2278 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); |
55682965 JB |
2279 | if (!hdr) |
2280 | return -1; | |
2281 | ||
72fb2abc JB |
2282 | if (dev && |
2283 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
98104fde | 2284 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
72fb2abc JB |
2285 | goto nla_put_failure; |
2286 | ||
2287 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
2288 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
71bbc994 | 2289 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
98104fde | 2290 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
9360ffd1 DM |
2291 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
2292 | rdev->devlist_generation ^ | |
2293 | (cfg80211_rdev_list_generation << 2))) | |
2294 | goto nla_put_failure; | |
f5ea9120 | 2295 | |
5b7ccaf3 | 2296 | if (rdev->ops->get_channel) { |
683b6d3b JB |
2297 | int ret; |
2298 | struct cfg80211_chan_def chandef; | |
2299 | ||
2300 | ret = rdev_get_channel(rdev, wdev, &chandef); | |
2301 | if (ret == 0) { | |
2302 | if (nl80211_send_chandef(msg, &chandef)) | |
2303 | goto nla_put_failure; | |
2304 | } | |
d91df0e3 PF |
2305 | } |
2306 | ||
b84e7a05 AQ |
2307 | if (wdev->ssid_len) { |
2308 | if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) | |
2309 | goto nla_put_failure; | |
2310 | } | |
2311 | ||
55682965 JB |
2312 | return genlmsg_end(msg, hdr); |
2313 | ||
2314 | nla_put_failure: | |
bc3ed28c TG |
2315 | genlmsg_cancel(msg, hdr); |
2316 | return -EMSGSIZE; | |
55682965 JB |
2317 | } |
2318 | ||
2319 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
2320 | { | |
2321 | int wp_idx = 0; | |
2322 | int if_idx = 0; | |
2323 | int wp_start = cb->args[0]; | |
2324 | int if_start = cb->args[1]; | |
f5ea9120 | 2325 | struct cfg80211_registered_device *rdev; |
55682965 JB |
2326 | struct wireless_dev *wdev; |
2327 | ||
5fe231e8 | 2328 | rtnl_lock(); |
f5ea9120 JB |
2329 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
2330 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 2331 | continue; |
bba95fef JB |
2332 | if (wp_idx < wp_start) { |
2333 | wp_idx++; | |
55682965 | 2334 | continue; |
bba95fef | 2335 | } |
55682965 JB |
2336 | if_idx = 0; |
2337 | ||
89a54e48 | 2338 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
bba95fef JB |
2339 | if (if_idx < if_start) { |
2340 | if_idx++; | |
55682965 | 2341 | continue; |
bba95fef | 2342 | } |
15e47304 | 2343 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 2344 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
72fb2abc | 2345 | rdev, wdev) < 0) { |
bba95fef JB |
2346 | goto out; |
2347 | } | |
2348 | if_idx++; | |
55682965 | 2349 | } |
bba95fef JB |
2350 | |
2351 | wp_idx++; | |
55682965 | 2352 | } |
bba95fef | 2353 | out: |
5fe231e8 | 2354 | rtnl_unlock(); |
55682965 JB |
2355 | |
2356 | cb->args[0] = wp_idx; | |
2357 | cb->args[1] = if_idx; | |
2358 | ||
2359 | return skb->len; | |
2360 | } | |
2361 | ||
2362 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
2363 | { | |
2364 | struct sk_buff *msg; | |
1b8ec87a | 2365 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
72fb2abc | 2366 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2367 | |
fd2120ca | 2368 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 2369 | if (!msg) |
4c476991 | 2370 | return -ENOMEM; |
55682965 | 2371 | |
15e47304 | 2372 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
1b8ec87a | 2373 | rdev, wdev) < 0) { |
4c476991 JB |
2374 | nlmsg_free(msg); |
2375 | return -ENOBUFS; | |
2376 | } | |
55682965 | 2377 | |
134e6375 | 2378 | return genlmsg_reply(msg, info); |
55682965 JB |
2379 | } |
2380 | ||
66f7ac50 MW |
2381 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
2382 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
2383 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
2384 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
2385 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
2386 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
e057d3c3 | 2387 | [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG }, |
66f7ac50 MW |
2388 | }; |
2389 | ||
2390 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
2391 | { | |
2392 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
2393 | int flag; | |
2394 | ||
2395 | *mntrflags = 0; | |
2396 | ||
2397 | if (!nla) | |
2398 | return -EINVAL; | |
2399 | ||
2400 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
2401 | nla, mntr_flags_policy)) | |
2402 | return -EINVAL; | |
2403 | ||
2404 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
2405 | if (flags[flag]) | |
2406 | *mntrflags |= (1<<flag); | |
2407 | ||
2408 | return 0; | |
2409 | } | |
2410 | ||
9bc383de | 2411 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
2412 | struct net_device *netdev, u8 use_4addr, |
2413 | enum nl80211_iftype iftype) | |
9bc383de | 2414 | { |
ad4bb6f8 | 2415 | if (!use_4addr) { |
f350a0a8 | 2416 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 2417 | return -EBUSY; |
9bc383de | 2418 | return 0; |
ad4bb6f8 | 2419 | } |
9bc383de JB |
2420 | |
2421 | switch (iftype) { | |
2422 | case NL80211_IFTYPE_AP_VLAN: | |
2423 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
2424 | return 0; | |
2425 | break; | |
2426 | case NL80211_IFTYPE_STATION: | |
2427 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
2428 | return 0; | |
2429 | break; | |
2430 | default: | |
2431 | break; | |
2432 | } | |
2433 | ||
2434 | return -EOPNOTSUPP; | |
2435 | } | |
2436 | ||
55682965 JB |
2437 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
2438 | { | |
4c476991 | 2439 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2440 | struct vif_params params; |
e36d56b6 | 2441 | int err; |
04a773ad | 2442 | enum nl80211_iftype otype, ntype; |
4c476991 | 2443 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 2444 | u32 _flags, *flags = NULL; |
ac7f9cfa | 2445 | bool change = false; |
55682965 | 2446 | |
2ec600d6 LCC |
2447 | memset(¶ms, 0, sizeof(params)); |
2448 | ||
04a773ad | 2449 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 2450 | |
723b038d | 2451 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 2452 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 2453 | if (otype != ntype) |
ac7f9cfa | 2454 | change = true; |
4c476991 JB |
2455 | if (ntype > NL80211_IFTYPE_MAX) |
2456 | return -EINVAL; | |
723b038d JB |
2457 | } |
2458 | ||
92ffe055 | 2459 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
2460 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2461 | ||
4c476991 JB |
2462 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
2463 | return -EINVAL; | |
29cbe68c JB |
2464 | if (netif_running(dev)) |
2465 | return -EBUSY; | |
2466 | ||
2467 | wdev_lock(wdev); | |
2468 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2469 | IEEE80211_MAX_MESH_ID_LEN); | |
2470 | wdev->mesh_id_up_len = | |
2471 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2472 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2473 | wdev->mesh_id_up_len); | |
2474 | wdev_unlock(wdev); | |
2ec600d6 LCC |
2475 | } |
2476 | ||
8b787643 FF |
2477 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
2478 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2479 | change = true; | |
ad4bb6f8 | 2480 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 2481 | if (err) |
4c476991 | 2482 | return err; |
8b787643 FF |
2483 | } else { |
2484 | params.use_4addr = -1; | |
2485 | } | |
2486 | ||
92ffe055 | 2487 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
2488 | if (ntype != NL80211_IFTYPE_MONITOR) |
2489 | return -EINVAL; | |
92ffe055 JB |
2490 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
2491 | &_flags); | |
ac7f9cfa | 2492 | if (err) |
4c476991 | 2493 | return err; |
ac7f9cfa JB |
2494 | |
2495 | flags = &_flags; | |
2496 | change = true; | |
92ffe055 | 2497 | } |
3b85875a | 2498 | |
18003297 | 2499 | if (flags && (*flags & MONITOR_FLAG_ACTIVE) && |
e057d3c3 FF |
2500 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2501 | return -EOPNOTSUPP; | |
2502 | ||
ac7f9cfa | 2503 | if (change) |
3d54d255 | 2504 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
2505 | else |
2506 | err = 0; | |
60719ffd | 2507 | |
9bc383de JB |
2508 | if (!err && params.use_4addr != -1) |
2509 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
2510 | ||
55682965 JB |
2511 | return err; |
2512 | } | |
2513 | ||
2514 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
2515 | { | |
4c476991 | 2516 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2517 | struct vif_params params; |
84efbb84 | 2518 | struct wireless_dev *wdev; |
1c90f9d4 | 2519 | struct sk_buff *msg; |
55682965 JB |
2520 | int err; |
2521 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 2522 | u32 flags; |
55682965 | 2523 | |
78f22b6a JB |
2524 | /* to avoid failing a new interface creation due to pending removal */ |
2525 | cfg80211_destroy_ifaces(rdev); | |
2526 | ||
2ec600d6 LCC |
2527 | memset(¶ms, 0, sizeof(params)); |
2528 | ||
55682965 JB |
2529 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
2530 | return -EINVAL; | |
2531 | ||
2532 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2533 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2534 | if (type > NL80211_IFTYPE_MAX) | |
2535 | return -EINVAL; | |
2536 | } | |
2537 | ||
79c97e97 | 2538 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
2539 | !(rdev->wiphy.interface_modes & (1 << type))) |
2540 | return -EOPNOTSUPP; | |
55682965 | 2541 | |
1c18f145 AS |
2542 | if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) { |
2543 | nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], | |
2544 | ETH_ALEN); | |
2545 | if (!is_valid_ether_addr(params.macaddr)) | |
2546 | return -EADDRNOTAVAIL; | |
2547 | } | |
2548 | ||
9bc383de | 2549 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 2550 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 2551 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 2552 | if (err) |
4c476991 | 2553 | return err; |
9bc383de | 2554 | } |
8b787643 | 2555 | |
1c90f9d4 JB |
2556 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2557 | if (!msg) | |
2558 | return -ENOMEM; | |
2559 | ||
66f7ac50 MW |
2560 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2561 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2562 | &flags); | |
e057d3c3 | 2563 | |
18003297 | 2564 | if (!err && (flags & MONITOR_FLAG_ACTIVE) && |
e057d3c3 FF |
2565 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2566 | return -EOPNOTSUPP; | |
2567 | ||
e35e4d28 HG |
2568 | wdev = rdev_add_virtual_intf(rdev, |
2569 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
2570 | type, err ? NULL : &flags, ¶ms); | |
1c90f9d4 JB |
2571 | if (IS_ERR(wdev)) { |
2572 | nlmsg_free(msg); | |
84efbb84 | 2573 | return PTR_ERR(wdev); |
1c90f9d4 | 2574 | } |
2ec600d6 | 2575 | |
78f22b6a JB |
2576 | if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER]) |
2577 | wdev->owner_nlportid = info->snd_portid; | |
2578 | ||
98104fde JB |
2579 | switch (type) { |
2580 | case NL80211_IFTYPE_MESH_POINT: | |
2581 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2582 | break; | |
29cbe68c JB |
2583 | wdev_lock(wdev); |
2584 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2585 | IEEE80211_MAX_MESH_ID_LEN); | |
2586 | wdev->mesh_id_up_len = | |
2587 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2588 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2589 | wdev->mesh_id_up_len); | |
2590 | wdev_unlock(wdev); | |
98104fde JB |
2591 | break; |
2592 | case NL80211_IFTYPE_P2P_DEVICE: | |
2593 | /* | |
2594 | * P2P Device doesn't have a netdev, so doesn't go | |
2595 | * through the netdev notifier and must be added here | |
2596 | */ | |
2597 | mutex_init(&wdev->mtx); | |
2598 | INIT_LIST_HEAD(&wdev->event_list); | |
2599 | spin_lock_init(&wdev->event_lock); | |
2600 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2601 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2602 | ||
98104fde JB |
2603 | wdev->identifier = ++rdev->wdev_id; |
2604 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2605 | rdev->devlist_generation++; | |
98104fde JB |
2606 | break; |
2607 | default: | |
2608 | break; | |
29cbe68c JB |
2609 | } |
2610 | ||
15e47304 | 2611 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
1c90f9d4 JB |
2612 | rdev, wdev) < 0) { |
2613 | nlmsg_free(msg); | |
2614 | return -ENOBUFS; | |
2615 | } | |
2616 | ||
2617 | return genlmsg_reply(msg, info); | |
55682965 JB |
2618 | } |
2619 | ||
2620 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2621 | { | |
4c476991 | 2622 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
84efbb84 | 2623 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2624 | |
4c476991 JB |
2625 | if (!rdev->ops->del_virtual_intf) |
2626 | return -EOPNOTSUPP; | |
55682965 | 2627 | |
84efbb84 JB |
2628 | /* |
2629 | * If we remove a wireless device without a netdev then clear | |
2630 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2631 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2632 | * since the wdev has been freed, unlike with a netdev where | |
2633 | * we need the dev_put() for the netdev to really be freed. | |
2634 | */ | |
2635 | if (!wdev->netdev) | |
2636 | info->user_ptr[1] = NULL; | |
2637 | ||
e35e4d28 | 2638 | return rdev_del_virtual_intf(rdev, wdev); |
55682965 JB |
2639 | } |
2640 | ||
1d9d9213 SW |
2641 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2642 | { | |
2643 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2644 | struct net_device *dev = info->user_ptr[1]; | |
2645 | u16 noack_map; | |
2646 | ||
2647 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2648 | return -EINVAL; | |
2649 | ||
2650 | if (!rdev->ops->set_noack_map) | |
2651 | return -EOPNOTSUPP; | |
2652 | ||
2653 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2654 | ||
e35e4d28 | 2655 | return rdev_set_noack_map(rdev, dev, noack_map); |
1d9d9213 SW |
2656 | } |
2657 | ||
41ade00f JB |
2658 | struct get_key_cookie { |
2659 | struct sk_buff *msg; | |
2660 | int error; | |
b9454e83 | 2661 | int idx; |
41ade00f JB |
2662 | }; |
2663 | ||
2664 | static void get_key_callback(void *c, struct key_params *params) | |
2665 | { | |
b9454e83 | 2666 | struct nlattr *key; |
41ade00f JB |
2667 | struct get_key_cookie *cookie = c; |
2668 | ||
9360ffd1 DM |
2669 | if ((params->key && |
2670 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2671 | params->key_len, params->key)) || | |
2672 | (params->seq && | |
2673 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2674 | params->seq_len, params->seq)) || | |
2675 | (params->cipher && | |
2676 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2677 | params->cipher))) | |
2678 | goto nla_put_failure; | |
41ade00f | 2679 | |
b9454e83 JB |
2680 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2681 | if (!key) | |
2682 | goto nla_put_failure; | |
2683 | ||
9360ffd1 DM |
2684 | if ((params->key && |
2685 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2686 | params->key_len, params->key)) || | |
2687 | (params->seq && | |
2688 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2689 | params->seq_len, params->seq)) || | |
2690 | (params->cipher && | |
2691 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2692 | params->cipher))) | |
2693 | goto nla_put_failure; | |
b9454e83 | 2694 | |
9360ffd1 DM |
2695 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2696 | goto nla_put_failure; | |
b9454e83 JB |
2697 | |
2698 | nla_nest_end(cookie->msg, key); | |
2699 | ||
41ade00f JB |
2700 | return; |
2701 | nla_put_failure: | |
2702 | cookie->error = 1; | |
2703 | } | |
2704 | ||
2705 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2706 | { | |
4c476991 | 2707 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2708 | int err; |
4c476991 | 2709 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2710 | u8 key_idx = 0; |
e31b8213 JB |
2711 | const u8 *mac_addr = NULL; |
2712 | bool pairwise; | |
41ade00f JB |
2713 | struct get_key_cookie cookie = { |
2714 | .error = 0, | |
2715 | }; | |
2716 | void *hdr; | |
2717 | struct sk_buff *msg; | |
2718 | ||
2719 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2720 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2721 | ||
3cfcf6ac | 2722 | if (key_idx > 5) |
41ade00f JB |
2723 | return -EINVAL; |
2724 | ||
2725 | if (info->attrs[NL80211_ATTR_MAC]) | |
2726 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2727 | ||
e31b8213 JB |
2728 | pairwise = !!mac_addr; |
2729 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2730 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2731 | if (kt >= NUM_NL80211_KEYTYPES) | |
2732 | return -EINVAL; | |
2733 | if (kt != NL80211_KEYTYPE_GROUP && | |
2734 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2735 | return -EINVAL; | |
2736 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2737 | } | |
2738 | ||
4c476991 JB |
2739 | if (!rdev->ops->get_key) |
2740 | return -EOPNOTSUPP; | |
41ade00f | 2741 | |
fd2120ca | 2742 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2743 | if (!msg) |
2744 | return -ENOMEM; | |
41ade00f | 2745 | |
15e47304 | 2746 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
41ade00f | 2747 | NL80211_CMD_NEW_KEY); |
cb35fba3 | 2748 | if (!hdr) |
9fe271af | 2749 | goto nla_put_failure; |
41ade00f JB |
2750 | |
2751 | cookie.msg = msg; | |
b9454e83 | 2752 | cookie.idx = key_idx; |
41ade00f | 2753 | |
9360ffd1 DM |
2754 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2755 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2756 | goto nla_put_failure; | |
2757 | if (mac_addr && | |
2758 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2759 | goto nla_put_failure; | |
41ade00f | 2760 | |
e31b8213 JB |
2761 | if (pairwise && mac_addr && |
2762 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2763 | return -ENOENT; | |
2764 | ||
e35e4d28 HG |
2765 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, |
2766 | get_key_callback); | |
41ade00f JB |
2767 | |
2768 | if (err) | |
6c95e2a2 | 2769 | goto free_msg; |
41ade00f JB |
2770 | |
2771 | if (cookie.error) | |
2772 | goto nla_put_failure; | |
2773 | ||
2774 | genlmsg_end(msg, hdr); | |
4c476991 | 2775 | return genlmsg_reply(msg, info); |
41ade00f JB |
2776 | |
2777 | nla_put_failure: | |
2778 | err = -ENOBUFS; | |
6c95e2a2 | 2779 | free_msg: |
41ade00f | 2780 | nlmsg_free(msg); |
41ade00f JB |
2781 | return err; |
2782 | } | |
2783 | ||
2784 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2785 | { | |
4c476991 | 2786 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2787 | struct key_parse key; |
41ade00f | 2788 | int err; |
4c476991 | 2789 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2790 | |
b9454e83 JB |
2791 | err = nl80211_parse_key(info, &key); |
2792 | if (err) | |
2793 | return err; | |
41ade00f | 2794 | |
b9454e83 | 2795 | if (key.idx < 0) |
41ade00f JB |
2796 | return -EINVAL; |
2797 | ||
b9454e83 JB |
2798 | /* only support setting default key */ |
2799 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2800 | return -EINVAL; |
2801 | ||
dbd2fd65 | 2802 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2803 | |
dbd2fd65 JB |
2804 | if (key.def) { |
2805 | if (!rdev->ops->set_default_key) { | |
2806 | err = -EOPNOTSUPP; | |
2807 | goto out; | |
2808 | } | |
41ade00f | 2809 | |
dbd2fd65 JB |
2810 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2811 | if (err) | |
2812 | goto out; | |
2813 | ||
e35e4d28 | 2814 | err = rdev_set_default_key(rdev, dev, key.idx, |
dbd2fd65 JB |
2815 | key.def_uni, key.def_multi); |
2816 | ||
2817 | if (err) | |
2818 | goto out; | |
fffd0934 | 2819 | |
3d23e349 | 2820 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2821 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2822 | #endif | |
2823 | } else { | |
2824 | if (key.def_uni || !key.def_multi) { | |
2825 | err = -EINVAL; | |
2826 | goto out; | |
2827 | } | |
2828 | ||
2829 | if (!rdev->ops->set_default_mgmt_key) { | |
2830 | err = -EOPNOTSUPP; | |
2831 | goto out; | |
2832 | } | |
2833 | ||
2834 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2835 | if (err) | |
2836 | goto out; | |
2837 | ||
e35e4d28 | 2838 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); |
dbd2fd65 JB |
2839 | if (err) |
2840 | goto out; | |
2841 | ||
2842 | #ifdef CONFIG_CFG80211_WEXT | |
2843 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 2844 | #endif |
dbd2fd65 JB |
2845 | } |
2846 | ||
2847 | out: | |
fffd0934 | 2848 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2849 | |
41ade00f JB |
2850 | return err; |
2851 | } | |
2852 | ||
2853 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
2854 | { | |
4c476991 | 2855 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 2856 | int err; |
4c476991 | 2857 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 2858 | struct key_parse key; |
e31b8213 | 2859 | const u8 *mac_addr = NULL; |
41ade00f | 2860 | |
b9454e83 JB |
2861 | err = nl80211_parse_key(info, &key); |
2862 | if (err) | |
2863 | return err; | |
41ade00f | 2864 | |
b9454e83 | 2865 | if (!key.p.key) |
41ade00f JB |
2866 | return -EINVAL; |
2867 | ||
41ade00f JB |
2868 | if (info->attrs[NL80211_ATTR_MAC]) |
2869 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2870 | ||
e31b8213 JB |
2871 | if (key.type == -1) { |
2872 | if (mac_addr) | |
2873 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2874 | else | |
2875 | key.type = NL80211_KEYTYPE_GROUP; | |
2876 | } | |
2877 | ||
2878 | /* for now */ | |
2879 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2880 | key.type != NL80211_KEYTYPE_GROUP) | |
2881 | return -EINVAL; | |
2882 | ||
4c476991 JB |
2883 | if (!rdev->ops->add_key) |
2884 | return -EOPNOTSUPP; | |
25e47c18 | 2885 | |
e31b8213 JB |
2886 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
2887 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2888 | mac_addr)) | |
4c476991 | 2889 | return -EINVAL; |
41ade00f | 2890 | |
fffd0934 JB |
2891 | wdev_lock(dev->ieee80211_ptr); |
2892 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2893 | if (!err) | |
e35e4d28 HG |
2894 | err = rdev_add_key(rdev, dev, key.idx, |
2895 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2896 | mac_addr, &key.p); | |
fffd0934 | 2897 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 2898 | |
41ade00f JB |
2899 | return err; |
2900 | } | |
2901 | ||
2902 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
2903 | { | |
4c476991 | 2904 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2905 | int err; |
4c476991 | 2906 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2907 | u8 *mac_addr = NULL; |
b9454e83 | 2908 | struct key_parse key; |
41ade00f | 2909 | |
b9454e83 JB |
2910 | err = nl80211_parse_key(info, &key); |
2911 | if (err) | |
2912 | return err; | |
41ade00f JB |
2913 | |
2914 | if (info->attrs[NL80211_ATTR_MAC]) | |
2915 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2916 | ||
e31b8213 JB |
2917 | if (key.type == -1) { |
2918 | if (mac_addr) | |
2919 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
2920 | else | |
2921 | key.type = NL80211_KEYTYPE_GROUP; | |
2922 | } | |
2923 | ||
2924 | /* for now */ | |
2925 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
2926 | key.type != NL80211_KEYTYPE_GROUP) | |
2927 | return -EINVAL; | |
2928 | ||
4c476991 JB |
2929 | if (!rdev->ops->del_key) |
2930 | return -EOPNOTSUPP; | |
41ade00f | 2931 | |
fffd0934 JB |
2932 | wdev_lock(dev->ieee80211_ptr); |
2933 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
2934 | |
2935 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
2936 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
2937 | err = -ENOENT; | |
2938 | ||
fffd0934 | 2939 | if (!err) |
e35e4d28 HG |
2940 | err = rdev_del_key(rdev, dev, key.idx, |
2941 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
2942 | mac_addr); | |
41ade00f | 2943 | |
3d23e349 | 2944 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 2945 | if (!err) { |
b9454e83 | 2946 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 2947 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 2948 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
2949 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
2950 | } | |
2951 | #endif | |
fffd0934 | 2952 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 2953 | |
41ade00f JB |
2954 | return err; |
2955 | } | |
2956 | ||
77765eaf VT |
2957 | /* This function returns an error or the number of nested attributes */ |
2958 | static int validate_acl_mac_addrs(struct nlattr *nl_attr) | |
2959 | { | |
2960 | struct nlattr *attr; | |
2961 | int n_entries = 0, tmp; | |
2962 | ||
2963 | nla_for_each_nested(attr, nl_attr, tmp) { | |
2964 | if (nla_len(attr) != ETH_ALEN) | |
2965 | return -EINVAL; | |
2966 | ||
2967 | n_entries++; | |
2968 | } | |
2969 | ||
2970 | return n_entries; | |
2971 | } | |
2972 | ||
2973 | /* | |
2974 | * This function parses ACL information and allocates memory for ACL data. | |
2975 | * On successful return, the calling function is responsible to free the | |
2976 | * ACL buffer returned by this function. | |
2977 | */ | |
2978 | static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, | |
2979 | struct genl_info *info) | |
2980 | { | |
2981 | enum nl80211_acl_policy acl_policy; | |
2982 | struct nlattr *attr; | |
2983 | struct cfg80211_acl_data *acl; | |
2984 | int i = 0, n_entries, tmp; | |
2985 | ||
2986 | if (!wiphy->max_acl_mac_addrs) | |
2987 | return ERR_PTR(-EOPNOTSUPP); | |
2988 | ||
2989 | if (!info->attrs[NL80211_ATTR_ACL_POLICY]) | |
2990 | return ERR_PTR(-EINVAL); | |
2991 | ||
2992 | acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); | |
2993 | if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && | |
2994 | acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) | |
2995 | return ERR_PTR(-EINVAL); | |
2996 | ||
2997 | if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) | |
2998 | return ERR_PTR(-EINVAL); | |
2999 | ||
3000 | n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); | |
3001 | if (n_entries < 0) | |
3002 | return ERR_PTR(n_entries); | |
3003 | ||
3004 | if (n_entries > wiphy->max_acl_mac_addrs) | |
3005 | return ERR_PTR(-ENOTSUPP); | |
3006 | ||
3007 | acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries), | |
3008 | GFP_KERNEL); | |
3009 | if (!acl) | |
3010 | return ERR_PTR(-ENOMEM); | |
3011 | ||
3012 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { | |
3013 | memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); | |
3014 | i++; | |
3015 | } | |
3016 | ||
3017 | acl->n_acl_entries = n_entries; | |
3018 | acl->acl_policy = acl_policy; | |
3019 | ||
3020 | return acl; | |
3021 | } | |
3022 | ||
3023 | static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) | |
3024 | { | |
3025 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3026 | struct net_device *dev = info->user_ptr[1]; | |
3027 | struct cfg80211_acl_data *acl; | |
3028 | int err; | |
3029 | ||
3030 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3031 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3032 | return -EOPNOTSUPP; | |
3033 | ||
3034 | if (!dev->ieee80211_ptr->beacon_interval) | |
3035 | return -EINVAL; | |
3036 | ||
3037 | acl = parse_acl_data(&rdev->wiphy, info); | |
3038 | if (IS_ERR(acl)) | |
3039 | return PTR_ERR(acl); | |
3040 | ||
3041 | err = rdev_set_mac_acl(rdev, dev, acl); | |
3042 | ||
3043 | kfree(acl); | |
3044 | ||
3045 | return err; | |
3046 | } | |
3047 | ||
a1193be8 | 3048 | static int nl80211_parse_beacon(struct nlattr *attrs[], |
8860020e | 3049 | struct cfg80211_beacon_data *bcn) |
ed1b6cc7 | 3050 | { |
8860020e | 3051 | bool haveinfo = false; |
ed1b6cc7 | 3052 | |
a1193be8 SW |
3053 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) || |
3054 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) || | |
3055 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
3056 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
3057 | return -EINVAL; |
3058 | ||
8860020e | 3059 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 3060 | |
a1193be8 SW |
3061 | if (attrs[NL80211_ATTR_BEACON_HEAD]) { |
3062 | bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); | |
3063 | bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); | |
8860020e JB |
3064 | if (!bcn->head_len) |
3065 | return -EINVAL; | |
3066 | haveinfo = true; | |
ed1b6cc7 JB |
3067 | } |
3068 | ||
a1193be8 SW |
3069 | if (attrs[NL80211_ATTR_BEACON_TAIL]) { |
3070 | bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]); | |
3071 | bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]); | |
8860020e | 3072 | haveinfo = true; |
ed1b6cc7 JB |
3073 | } |
3074 | ||
4c476991 JB |
3075 | if (!haveinfo) |
3076 | return -EINVAL; | |
3b85875a | 3077 | |
a1193be8 SW |
3078 | if (attrs[NL80211_ATTR_IE]) { |
3079 | bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]); | |
3080 | bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
3081 | } |
3082 | ||
a1193be8 | 3083 | if (attrs[NL80211_ATTR_IE_PROBE_RESP]) { |
8860020e | 3084 | bcn->proberesp_ies = |
a1193be8 | 3085 | nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 3086 | bcn->proberesp_ies_len = |
a1193be8 | 3087 | nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
9946ecfb JM |
3088 | } |
3089 | ||
a1193be8 | 3090 | if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) { |
8860020e | 3091 | bcn->assocresp_ies = |
a1193be8 | 3092 | nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 3093 | bcn->assocresp_ies_len = |
a1193be8 | 3094 | nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
9946ecfb JM |
3095 | } |
3096 | ||
a1193be8 SW |
3097 | if (attrs[NL80211_ATTR_PROBE_RESP]) { |
3098 | bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]); | |
3099 | bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]); | |
00f740e1 AN |
3100 | } |
3101 | ||
8860020e JB |
3102 | return 0; |
3103 | } | |
3104 | ||
46c1dd0c FF |
3105 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
3106 | struct cfg80211_ap_settings *params) | |
3107 | { | |
3108 | struct wireless_dev *wdev; | |
3109 | bool ret = false; | |
3110 | ||
89a54e48 | 3111 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
46c1dd0c FF |
3112 | if (wdev->iftype != NL80211_IFTYPE_AP && |
3113 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
3114 | continue; | |
3115 | ||
683b6d3b | 3116 | if (!wdev->preset_chandef.chan) |
46c1dd0c FF |
3117 | continue; |
3118 | ||
683b6d3b | 3119 | params->chandef = wdev->preset_chandef; |
46c1dd0c FF |
3120 | ret = true; |
3121 | break; | |
3122 | } | |
3123 | ||
46c1dd0c FF |
3124 | return ret; |
3125 | } | |
3126 | ||
e39e5b5e JM |
3127 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
3128 | enum nl80211_auth_type auth_type, | |
3129 | enum nl80211_commands cmd) | |
3130 | { | |
3131 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
3132 | return false; | |
3133 | ||
3134 | switch (cmd) { | |
3135 | case NL80211_CMD_AUTHENTICATE: | |
3136 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
3137 | auth_type == NL80211_AUTHTYPE_SAE) | |
3138 | return false; | |
3139 | return true; | |
3140 | case NL80211_CMD_CONNECT: | |
3141 | case NL80211_CMD_START_AP: | |
3142 | /* SAE not supported yet */ | |
3143 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
3144 | return false; | |
3145 | return true; | |
3146 | default: | |
3147 | return false; | |
3148 | } | |
3149 | } | |
3150 | ||
8860020e JB |
3151 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
3152 | { | |
3153 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3154 | struct net_device *dev = info->user_ptr[1]; | |
3155 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3156 | struct cfg80211_ap_settings params; | |
3157 | int err; | |
3158 | ||
3159 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3160 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3161 | return -EOPNOTSUPP; | |
3162 | ||
3163 | if (!rdev->ops->start_ap) | |
3164 | return -EOPNOTSUPP; | |
3165 | ||
3166 | if (wdev->beacon_interval) | |
3167 | return -EALREADY; | |
3168 | ||
3169 | memset(¶ms, 0, sizeof(params)); | |
3170 | ||
3171 | /* these are required for START_AP */ | |
3172 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
3173 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
3174 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
3175 | return -EINVAL; | |
3176 | ||
a1193be8 | 3177 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon); |
8860020e JB |
3178 | if (err) |
3179 | return err; | |
3180 | ||
3181 | params.beacon_interval = | |
3182 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3183 | params.dtim_period = | |
3184 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
3185 | ||
3186 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
3187 | if (err) | |
3188 | return err; | |
3189 | ||
3190 | /* | |
3191 | * In theory, some of these attributes should be required here | |
3192 | * but since they were not used when the command was originally | |
3193 | * added, keep them optional for old user space programs to let | |
3194 | * them continue to work with drivers that do not need the | |
3195 | * additional information -- drivers must check! | |
3196 | */ | |
3197 | if (info->attrs[NL80211_ATTR_SSID]) { | |
3198 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3199 | params.ssid_len = | |
3200 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3201 | if (params.ssid_len == 0 || | |
3202 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
3203 | return -EINVAL; | |
3204 | } | |
3205 | ||
3206 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
3207 | params.hidden_ssid = nla_get_u32( | |
3208 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
3209 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
3210 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
3211 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
3212 | return -EINVAL; | |
3213 | } | |
3214 | ||
3215 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
3216 | ||
3217 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3218 | params.auth_type = nla_get_u32( | |
3219 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
3220 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
3221 | NL80211_CMD_START_AP)) | |
8860020e JB |
3222 | return -EINVAL; |
3223 | } else | |
3224 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3225 | ||
3226 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
3227 | NL80211_MAX_NR_CIPHER_SUITES); | |
3228 | if (err) | |
3229 | return err; | |
3230 | ||
1b658f11 VT |
3231 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
3232 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
3233 | return -EOPNOTSUPP; | |
3234 | params.inactivity_timeout = nla_get_u16( | |
3235 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
3236 | } | |
3237 | ||
53cabad7 JB |
3238 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
3239 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3240 | return -EINVAL; | |
3241 | params.p2p_ctwindow = | |
3242 | nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
3243 | if (params.p2p_ctwindow > 127) | |
3244 | return -EINVAL; | |
3245 | if (params.p2p_ctwindow != 0 && | |
3246 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
3247 | return -EINVAL; | |
3248 | } | |
3249 | ||
3250 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
3251 | u8 tmp; | |
3252 | ||
3253 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3254 | return -EINVAL; | |
3255 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
3256 | if (tmp > 1) | |
3257 | return -EINVAL; | |
3258 | params.p2p_opp_ps = tmp; | |
3259 | if (params.p2p_opp_ps != 0 && | |
3260 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
3261 | return -EINVAL; | |
3262 | } | |
3263 | ||
aa430da4 | 3264 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
3265 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
3266 | if (err) | |
3267 | return err; | |
3268 | } else if (wdev->preset_chandef.chan) { | |
3269 | params.chandef = wdev->preset_chandef; | |
46c1dd0c | 3270 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
aa430da4 JB |
3271 | return -EINVAL; |
3272 | ||
174e0cd2 IP |
3273 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef, |
3274 | wdev->iftype)) | |
aa430da4 JB |
3275 | return -EINVAL; |
3276 | ||
77765eaf VT |
3277 | if (info->attrs[NL80211_ATTR_ACL_POLICY]) { |
3278 | params.acl = parse_acl_data(&rdev->wiphy, info); | |
3279 | if (IS_ERR(params.acl)) | |
3280 | return PTR_ERR(params.acl); | |
3281 | } | |
3282 | ||
c56589ed | 3283 | wdev_lock(wdev); |
e35e4d28 | 3284 | err = rdev_start_ap(rdev, dev, ¶ms); |
46c1dd0c | 3285 | if (!err) { |
683b6d3b | 3286 | wdev->preset_chandef = params.chandef; |
8860020e | 3287 | wdev->beacon_interval = params.beacon_interval; |
9e0e2961 | 3288 | wdev->chandef = params.chandef; |
06e191e2 AQ |
3289 | wdev->ssid_len = params.ssid_len; |
3290 | memcpy(wdev->ssid, params.ssid, wdev->ssid_len); | |
46c1dd0c | 3291 | } |
c56589ed | 3292 | wdev_unlock(wdev); |
77765eaf VT |
3293 | |
3294 | kfree(params.acl); | |
3295 | ||
56d1893d | 3296 | return err; |
ed1b6cc7 JB |
3297 | } |
3298 | ||
8860020e JB |
3299 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
3300 | { | |
3301 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3302 | struct net_device *dev = info->user_ptr[1]; | |
3303 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3304 | struct cfg80211_beacon_data params; | |
3305 | int err; | |
3306 | ||
3307 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3308 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3309 | return -EOPNOTSUPP; | |
3310 | ||
3311 | if (!rdev->ops->change_beacon) | |
3312 | return -EOPNOTSUPP; | |
3313 | ||
3314 | if (!wdev->beacon_interval) | |
3315 | return -EINVAL; | |
3316 | ||
a1193be8 | 3317 | err = nl80211_parse_beacon(info->attrs, ¶ms); |
8860020e JB |
3318 | if (err) |
3319 | return err; | |
3320 | ||
c56589ed SW |
3321 | wdev_lock(wdev); |
3322 | err = rdev_change_beacon(rdev, dev, ¶ms); | |
3323 | wdev_unlock(wdev); | |
3324 | ||
3325 | return err; | |
8860020e JB |
3326 | } |
3327 | ||
3328 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 3329 | { |
4c476991 JB |
3330 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3331 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 3332 | |
7c8d5e03 | 3333 | return cfg80211_stop_ap(rdev, dev, false); |
ed1b6cc7 JB |
3334 | } |
3335 | ||
5727ef1b JB |
3336 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
3337 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
3338 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
3339 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 3340 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 3341 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 3342 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
3343 | }; |
3344 | ||
eccb8e8f | 3345 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 3346 | enum nl80211_iftype iftype, |
eccb8e8f | 3347 | struct station_parameters *params) |
5727ef1b JB |
3348 | { |
3349 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 3350 | struct nlattr *nla; |
5727ef1b JB |
3351 | int flag; |
3352 | ||
eccb8e8f JB |
3353 | /* |
3354 | * Try parsing the new attribute first so userspace | |
3355 | * can specify both for older kernels. | |
3356 | */ | |
3357 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
3358 | if (nla) { | |
3359 | struct nl80211_sta_flag_update *sta_flags; | |
3360 | ||
3361 | sta_flags = nla_data(nla); | |
3362 | params->sta_flags_mask = sta_flags->mask; | |
3363 | params->sta_flags_set = sta_flags->set; | |
77ee7c89 | 3364 | params->sta_flags_set &= params->sta_flags_mask; |
eccb8e8f JB |
3365 | if ((params->sta_flags_mask | |
3366 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
3367 | return -EINVAL; | |
3368 | return 0; | |
3369 | } | |
3370 | ||
3371 | /* if present, parse the old attribute */ | |
5727ef1b | 3372 | |
eccb8e8f | 3373 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
3374 | if (!nla) |
3375 | return 0; | |
3376 | ||
3377 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
3378 | nla, sta_flags_policy)) | |
3379 | return -EINVAL; | |
3380 | ||
bdd3ae3d JB |
3381 | /* |
3382 | * Only allow certain flags for interface types so that | |
3383 | * other attributes are silently ignored. Remember that | |
3384 | * this is backward compatibility code with old userspace | |
3385 | * and shouldn't be hit in other cases anyway. | |
3386 | */ | |
3387 | switch (iftype) { | |
3388 | case NL80211_IFTYPE_AP: | |
3389 | case NL80211_IFTYPE_AP_VLAN: | |
3390 | case NL80211_IFTYPE_P2P_GO: | |
3391 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3392 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3393 | BIT(NL80211_STA_FLAG_WME) | | |
3394 | BIT(NL80211_STA_FLAG_MFP); | |
3395 | break; | |
3396 | case NL80211_IFTYPE_P2P_CLIENT: | |
3397 | case NL80211_IFTYPE_STATION: | |
3398 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3399 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3400 | break; | |
3401 | case NL80211_IFTYPE_MESH_POINT: | |
3402 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3403 | BIT(NL80211_STA_FLAG_MFP) | | |
3404 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
3405 | default: | |
3406 | return -EINVAL; | |
3407 | } | |
5727ef1b | 3408 | |
3383b5a6 JB |
3409 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
3410 | if (flags[flag]) { | |
eccb8e8f | 3411 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 3412 | |
3383b5a6 JB |
3413 | /* no longer support new API additions in old API */ |
3414 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
3415 | return -EINVAL; | |
3416 | } | |
3417 | } | |
3418 | ||
5727ef1b JB |
3419 | return 0; |
3420 | } | |
3421 | ||
c8dcfd8a FF |
3422 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
3423 | int attr) | |
3424 | { | |
3425 | struct nlattr *rate; | |
8eb41c8d VK |
3426 | u32 bitrate; |
3427 | u16 bitrate_compat; | |
c8dcfd8a FF |
3428 | |
3429 | rate = nla_nest_start(msg, attr); | |
3430 | if (!rate) | |
db9c64cf | 3431 | return false; |
c8dcfd8a FF |
3432 | |
3433 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
3434 | bitrate = cfg80211_calculate_bitrate(info); | |
8eb41c8d VK |
3435 | /* report 16-bit bitrate only if we can */ |
3436 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
db9c64cf JB |
3437 | if (bitrate > 0 && |
3438 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) | |
3439 | return false; | |
3440 | if (bitrate_compat > 0 && | |
3441 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) | |
3442 | return false; | |
3443 | ||
3444 | if (info->flags & RATE_INFO_FLAGS_MCS) { | |
3445 | if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) | |
3446 | return false; | |
3447 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH && | |
3448 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) | |
3449 | return false; | |
3450 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && | |
3451 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3452 | return false; | |
3453 | } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { | |
3454 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) | |
3455 | return false; | |
3456 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) | |
3457 | return false; | |
3458 | if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH && | |
3459 | nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) | |
3460 | return false; | |
3461 | if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH && | |
3462 | nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH)) | |
3463 | return false; | |
3464 | if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH && | |
3465 | nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH)) | |
3466 | return false; | |
3467 | if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH && | |
3468 | nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH)) | |
3469 | return false; | |
3470 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && | |
3471 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3472 | return false; | |
3473 | } | |
c8dcfd8a FF |
3474 | |
3475 | nla_nest_end(msg, rate); | |
3476 | return true; | |
c8dcfd8a FF |
3477 | } |
3478 | ||
119363c7 FF |
3479 | static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, |
3480 | int id) | |
3481 | { | |
3482 | void *attr; | |
3483 | int i = 0; | |
3484 | ||
3485 | if (!mask) | |
3486 | return true; | |
3487 | ||
3488 | attr = nla_nest_start(msg, id); | |
3489 | if (!attr) | |
3490 | return false; | |
3491 | ||
3492 | for (i = 0; i < IEEE80211_MAX_CHAINS; i++) { | |
3493 | if (!(mask & BIT(i))) | |
3494 | continue; | |
3495 | ||
3496 | if (nla_put_u8(msg, i, signal[i])) | |
3497 | return false; | |
3498 | } | |
3499 | ||
3500 | nla_nest_end(msg, attr); | |
3501 | ||
3502 | return true; | |
3503 | } | |
3504 | ||
15e47304 | 3505 | static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, |
66266b3a JL |
3506 | int flags, |
3507 | struct cfg80211_registered_device *rdev, | |
3508 | struct net_device *dev, | |
98b62183 | 3509 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
3510 | { |
3511 | void *hdr; | |
f4263c98 | 3512 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc | 3513 | |
15e47304 | 3514 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
fd5b74dc JB |
3515 | if (!hdr) |
3516 | return -1; | |
3517 | ||
9360ffd1 DM |
3518 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3519 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
3520 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
3521 | goto nla_put_failure; | |
f5ea9120 | 3522 | |
2ec600d6 LCC |
3523 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
3524 | if (!sinfoattr) | |
fd5b74dc | 3525 | goto nla_put_failure; |
9360ffd1 DM |
3526 | if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) && |
3527 | nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME, | |
3528 | sinfo->connected_time)) | |
3529 | goto nla_put_failure; | |
3530 | if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) && | |
3531 | nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
3532 | sinfo->inactive_time)) | |
3533 | goto nla_put_failure; | |
42745e03 VK |
3534 | if ((sinfo->filled & (STATION_INFO_RX_BYTES | |
3535 | STATION_INFO_RX_BYTES64)) && | |
9360ffd1 | 3536 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, |
42745e03 | 3537 | (u32)sinfo->rx_bytes)) |
9360ffd1 | 3538 | goto nla_put_failure; |
42745e03 | 3539 | if ((sinfo->filled & (STATION_INFO_TX_BYTES | |
4325d724 | 3540 | STATION_INFO_TX_BYTES64)) && |
9360ffd1 | 3541 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, |
42745e03 VK |
3542 | (u32)sinfo->tx_bytes)) |
3543 | goto nla_put_failure; | |
3544 | if ((sinfo->filled & STATION_INFO_RX_BYTES64) && | |
3545 | nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64, | |
3546 | sinfo->rx_bytes)) | |
3547 | goto nla_put_failure; | |
3548 | if ((sinfo->filled & STATION_INFO_TX_BYTES64) && | |
3549 | nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64, | |
9360ffd1 DM |
3550 | sinfo->tx_bytes)) |
3551 | goto nla_put_failure; | |
3552 | if ((sinfo->filled & STATION_INFO_LLID) && | |
3553 | nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid)) | |
3554 | goto nla_put_failure; | |
3555 | if ((sinfo->filled & STATION_INFO_PLID) && | |
3556 | nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid)) | |
3557 | goto nla_put_failure; | |
3558 | if ((sinfo->filled & STATION_INFO_PLINK_STATE) && | |
3559 | nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE, | |
3560 | sinfo->plink_state)) | |
3561 | goto nla_put_failure; | |
66266b3a JL |
3562 | switch (rdev->wiphy.signal_type) { |
3563 | case CFG80211_SIGNAL_TYPE_MBM: | |
9360ffd1 DM |
3564 | if ((sinfo->filled & STATION_INFO_SIGNAL) && |
3565 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL, | |
3566 | sinfo->signal)) | |
3567 | goto nla_put_failure; | |
3568 | if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) && | |
3569 | nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
3570 | sinfo->signal_avg)) | |
3571 | goto nla_put_failure; | |
66266b3a JL |
3572 | break; |
3573 | default: | |
3574 | break; | |
3575 | } | |
119363c7 FF |
3576 | if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) { |
3577 | if (!nl80211_put_signal(msg, sinfo->chains, | |
3578 | sinfo->chain_signal, | |
3579 | NL80211_STA_INFO_CHAIN_SIGNAL)) | |
3580 | goto nla_put_failure; | |
3581 | } | |
3582 | if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) { | |
3583 | if (!nl80211_put_signal(msg, sinfo->chains, | |
3584 | sinfo->chain_signal_avg, | |
3585 | NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) | |
3586 | goto nla_put_failure; | |
3587 | } | |
420e7fab | 3588 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
c8dcfd8a FF |
3589 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
3590 | NL80211_STA_INFO_TX_BITRATE)) | |
3591 | goto nla_put_failure; | |
3592 | } | |
3593 | if (sinfo->filled & STATION_INFO_RX_BITRATE) { | |
3594 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, | |
3595 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 3596 | goto nla_put_failure; |
420e7fab | 3597 | } |
9360ffd1 DM |
3598 | if ((sinfo->filled & STATION_INFO_RX_PACKETS) && |
3599 | nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS, | |
3600 | sinfo->rx_packets)) | |
3601 | goto nla_put_failure; | |
3602 | if ((sinfo->filled & STATION_INFO_TX_PACKETS) && | |
3603 | nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS, | |
3604 | sinfo->tx_packets)) | |
3605 | goto nla_put_failure; | |
3606 | if ((sinfo->filled & STATION_INFO_TX_RETRIES) && | |
3607 | nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES, | |
3608 | sinfo->tx_retries)) | |
3609 | goto nla_put_failure; | |
3610 | if ((sinfo->filled & STATION_INFO_TX_FAILED) && | |
3611 | nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, | |
3612 | sinfo->tx_failed)) | |
3613 | goto nla_put_failure; | |
3614 | if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && | |
3615 | nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, | |
3616 | sinfo->beacon_loss_count)) | |
3617 | goto nla_put_failure; | |
3b1c5a53 MP |
3618 | if ((sinfo->filled & STATION_INFO_LOCAL_PM) && |
3619 | nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM, | |
3620 | sinfo->local_pm)) | |
3621 | goto nla_put_failure; | |
3622 | if ((sinfo->filled & STATION_INFO_PEER_PM) && | |
3623 | nla_put_u32(msg, NL80211_STA_INFO_PEER_PM, | |
3624 | sinfo->peer_pm)) | |
3625 | goto nla_put_failure; | |
3626 | if ((sinfo->filled & STATION_INFO_NONPEER_PM) && | |
3627 | nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM, | |
3628 | sinfo->nonpeer_pm)) | |
3629 | goto nla_put_failure; | |
f4263c98 PS |
3630 | if (sinfo->filled & STATION_INFO_BSS_PARAM) { |
3631 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); | |
3632 | if (!bss_param) | |
3633 | goto nla_put_failure; | |
3634 | ||
9360ffd1 DM |
3635 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
3636 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
3637 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
3638 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
3639 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
3640 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
3641 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
3642 | sinfo->bss_param.dtim_period) || | |
3643 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
3644 | sinfo->bss_param.beacon_interval)) | |
3645 | goto nla_put_failure; | |
f4263c98 PS |
3646 | |
3647 | nla_nest_end(msg, bss_param); | |
3648 | } | |
9360ffd1 DM |
3649 | if ((sinfo->filled & STATION_INFO_STA_FLAGS) && |
3650 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, | |
3651 | sizeof(struct nl80211_sta_flag_update), | |
3652 | &sinfo->sta_flags)) | |
3653 | goto nla_put_failure; | |
7eab0f64 JL |
3654 | if ((sinfo->filled & STATION_INFO_T_OFFSET) && |
3655 | nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET, | |
3656 | sinfo->t_offset)) | |
3657 | goto nla_put_failure; | |
2ec600d6 | 3658 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 3659 | |
9360ffd1 DM |
3660 | if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) && |
3661 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, | |
3662 | sinfo->assoc_req_ies)) | |
3663 | goto nla_put_failure; | |
50d3dfb7 | 3664 | |
fd5b74dc JB |
3665 | return genlmsg_end(msg, hdr); |
3666 | ||
3667 | nla_put_failure: | |
bc3ed28c TG |
3668 | genlmsg_cancel(msg, hdr); |
3669 | return -EMSGSIZE; | |
fd5b74dc JB |
3670 | } |
3671 | ||
2ec600d6 | 3672 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 3673 | struct netlink_callback *cb) |
2ec600d6 | 3674 | { |
2ec600d6 | 3675 | struct station_info sinfo; |
1b8ec87a | 3676 | struct cfg80211_registered_device *rdev; |
97990a06 | 3677 | struct wireless_dev *wdev; |
2ec600d6 | 3678 | u8 mac_addr[ETH_ALEN]; |
97990a06 | 3679 | int sta_idx = cb->args[2]; |
2ec600d6 | 3680 | int err; |
2ec600d6 | 3681 | |
1b8ec87a | 3682 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
3683 | if (err) |
3684 | return err; | |
bba95fef | 3685 | |
97990a06 JB |
3686 | if (!wdev->netdev) { |
3687 | err = -EINVAL; | |
3688 | goto out_err; | |
3689 | } | |
3690 | ||
1b8ec87a | 3691 | if (!rdev->ops->dump_station) { |
eec60b03 | 3692 | err = -EOPNOTSUPP; |
bba95fef JB |
3693 | goto out_err; |
3694 | } | |
3695 | ||
bba95fef | 3696 | while (1) { |
f612cedf | 3697 | memset(&sinfo, 0, sizeof(sinfo)); |
1b8ec87a | 3698 | err = rdev_dump_station(rdev, wdev->netdev, sta_idx, |
e35e4d28 | 3699 | mac_addr, &sinfo); |
bba95fef JB |
3700 | if (err == -ENOENT) |
3701 | break; | |
3702 | if (err) | |
3b85875a | 3703 | goto out_err; |
bba95fef JB |
3704 | |
3705 | if (nl80211_send_station(skb, | |
15e47304 | 3706 | NETLINK_CB(cb->skb).portid, |
bba95fef | 3707 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
1b8ec87a | 3708 | rdev, wdev->netdev, mac_addr, |
bba95fef JB |
3709 | &sinfo) < 0) |
3710 | goto out; | |
3711 | ||
3712 | sta_idx++; | |
3713 | } | |
3714 | ||
3715 | ||
3716 | out: | |
97990a06 | 3717 | cb->args[2] = sta_idx; |
bba95fef | 3718 | err = skb->len; |
bba95fef | 3719 | out_err: |
1b8ec87a | 3720 | nl80211_finish_wdev_dump(rdev); |
bba95fef JB |
3721 | |
3722 | return err; | |
2ec600d6 | 3723 | } |
fd5b74dc | 3724 | |
5727ef1b JB |
3725 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
3726 | { | |
4c476991 JB |
3727 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3728 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 3729 | struct station_info sinfo; |
fd5b74dc JB |
3730 | struct sk_buff *msg; |
3731 | u8 *mac_addr = NULL; | |
4c476991 | 3732 | int err; |
fd5b74dc | 3733 | |
2ec600d6 | 3734 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
3735 | |
3736 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3737 | return -EINVAL; | |
3738 | ||
3739 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3740 | ||
4c476991 JB |
3741 | if (!rdev->ops->get_station) |
3742 | return -EOPNOTSUPP; | |
3b85875a | 3743 | |
e35e4d28 | 3744 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
fd5b74dc | 3745 | if (err) |
4c476991 | 3746 | return err; |
2ec600d6 | 3747 | |
fd2120ca | 3748 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 3749 | if (!msg) |
4c476991 | 3750 | return -ENOMEM; |
fd5b74dc | 3751 | |
15e47304 | 3752 | if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0, |
66266b3a | 3753 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
3754 | nlmsg_free(msg); |
3755 | return -ENOBUFS; | |
3756 | } | |
3b85875a | 3757 | |
4c476991 | 3758 | return genlmsg_reply(msg, info); |
5727ef1b JB |
3759 | } |
3760 | ||
77ee7c89 JB |
3761 | int cfg80211_check_station_change(struct wiphy *wiphy, |
3762 | struct station_parameters *params, | |
3763 | enum cfg80211_station_type statype) | |
3764 | { | |
3765 | if (params->listen_interval != -1) | |
3766 | return -EINVAL; | |
3767 | if (params->aid) | |
3768 | return -EINVAL; | |
3769 | ||
3770 | /* When you run into this, adjust the code below for the new flag */ | |
3771 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
3772 | ||
3773 | switch (statype) { | |
eef941e6 TP |
3774 | case CFG80211_STA_MESH_PEER_KERNEL: |
3775 | case CFG80211_STA_MESH_PEER_USER: | |
77ee7c89 JB |
3776 | /* |
3777 | * No ignoring the TDLS flag here -- the userspace mesh | |
3778 | * code doesn't have the bug of including TDLS in the | |
3779 | * mask everywhere. | |
3780 | */ | |
3781 | if (params->sta_flags_mask & | |
3782 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3783 | BIT(NL80211_STA_FLAG_MFP) | | |
3784 | BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
3785 | return -EINVAL; | |
3786 | break; | |
3787 | case CFG80211_STA_TDLS_PEER_SETUP: | |
3788 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
3789 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
3790 | return -EINVAL; | |
3791 | /* ignore since it can't change */ | |
3792 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3793 | break; | |
3794 | default: | |
3795 | /* disallow mesh-specific things */ | |
3796 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) | |
3797 | return -EINVAL; | |
3798 | if (params->local_pm) | |
3799 | return -EINVAL; | |
3800 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) | |
3801 | return -EINVAL; | |
3802 | } | |
3803 | ||
3804 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && | |
3805 | statype != CFG80211_STA_TDLS_PEER_ACTIVE) { | |
3806 | /* TDLS can't be set, ... */ | |
3807 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
3808 | return -EINVAL; | |
3809 | /* | |
3810 | * ... but don't bother the driver with it. This works around | |
3811 | * a hostapd/wpa_supplicant issue -- it always includes the | |
3812 | * TLDS_PEER flag in the mask even for AP mode. | |
3813 | */ | |
3814 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3815 | } | |
3816 | ||
3817 | if (statype != CFG80211_STA_TDLS_PEER_SETUP) { | |
3818 | /* reject other things that can't change */ | |
3819 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) | |
3820 | return -EINVAL; | |
3821 | if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY) | |
3822 | return -EINVAL; | |
3823 | if (params->supported_rates) | |
3824 | return -EINVAL; | |
3825 | if (params->ext_capab || params->ht_capa || params->vht_capa) | |
3826 | return -EINVAL; | |
3827 | } | |
3828 | ||
3829 | if (statype != CFG80211_STA_AP_CLIENT) { | |
3830 | if (params->vlan) | |
3831 | return -EINVAL; | |
3832 | } | |
3833 | ||
3834 | switch (statype) { | |
3835 | case CFG80211_STA_AP_MLME_CLIENT: | |
3836 | /* Use this only for authorizing/unauthorizing a station */ | |
3837 | if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
3838 | return -EOPNOTSUPP; | |
3839 | break; | |
3840 | case CFG80211_STA_AP_CLIENT: | |
3841 | /* accept only the listed bits */ | |
3842 | if (params->sta_flags_mask & | |
3843 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3844 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3845 | BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
3846 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3847 | BIT(NL80211_STA_FLAG_WME) | | |
3848 | BIT(NL80211_STA_FLAG_MFP))) | |
3849 | return -EINVAL; | |
3850 | ||
3851 | /* but authenticated/associated only if driver handles it */ | |
3852 | if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
3853 | params->sta_flags_mask & | |
3854 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3855 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
3856 | return -EINVAL; | |
3857 | break; | |
3858 | case CFG80211_STA_IBSS: | |
3859 | case CFG80211_STA_AP_STA: | |
3860 | /* reject any changes other than AUTHORIZED */ | |
3861 | if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
3862 | return -EINVAL; | |
3863 | break; | |
3864 | case CFG80211_STA_TDLS_PEER_SETUP: | |
3865 | /* reject any changes other than AUTHORIZED or WME */ | |
3866 | if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3867 | BIT(NL80211_STA_FLAG_WME))) | |
3868 | return -EINVAL; | |
3869 | /* force (at least) rates when authorizing */ | |
3870 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) && | |
3871 | !params->supported_rates) | |
3872 | return -EINVAL; | |
3873 | break; | |
3874 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
3875 | /* reject any changes */ | |
3876 | return -EINVAL; | |
eef941e6 | 3877 | case CFG80211_STA_MESH_PEER_KERNEL: |
77ee7c89 JB |
3878 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
3879 | return -EINVAL; | |
3880 | break; | |
eef941e6 | 3881 | case CFG80211_STA_MESH_PEER_USER: |
77ee7c89 JB |
3882 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) |
3883 | return -EINVAL; | |
3884 | break; | |
3885 | } | |
3886 | ||
3887 | return 0; | |
3888 | } | |
3889 | EXPORT_SYMBOL(cfg80211_check_station_change); | |
3890 | ||
5727ef1b | 3891 | /* |
c258d2de | 3892 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 3893 | */ |
80b99899 JB |
3894 | static struct net_device *get_vlan(struct genl_info *info, |
3895 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 3896 | { |
463d0183 | 3897 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
3898 | struct net_device *v; |
3899 | int ret; | |
3900 | ||
3901 | if (!vlanattr) | |
3902 | return NULL; | |
3903 | ||
3904 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
3905 | if (!v) | |
3906 | return ERR_PTR(-ENODEV); | |
3907 | ||
3908 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
3909 | ret = -EINVAL; | |
3910 | goto error; | |
5727ef1b | 3911 | } |
80b99899 | 3912 | |
77ee7c89 JB |
3913 | if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
3914 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3915 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
3916 | ret = -EINVAL; | |
3917 | goto error; | |
3918 | } | |
3919 | ||
80b99899 JB |
3920 | if (!netif_running(v)) { |
3921 | ret = -ENETDOWN; | |
3922 | goto error; | |
3923 | } | |
3924 | ||
3925 | return v; | |
3926 | error: | |
3927 | dev_put(v); | |
3928 | return ERR_PTR(ret); | |
5727ef1b JB |
3929 | } |
3930 | ||
94e860f1 JB |
3931 | static const struct nla_policy |
3932 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = { | |
df881293 JM |
3933 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, |
3934 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
3935 | }; | |
3936 | ||
ff276691 JB |
3937 | static int nl80211_parse_sta_wme(struct genl_info *info, |
3938 | struct station_parameters *params) | |
df881293 | 3939 | { |
df881293 JM |
3940 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; |
3941 | struct nlattr *nla; | |
3942 | int err; | |
3943 | ||
df881293 JM |
3944 | /* parse WME attributes if present */ |
3945 | if (!info->attrs[NL80211_ATTR_STA_WME]) | |
3946 | return 0; | |
3947 | ||
3948 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
3949 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
3950 | nl80211_sta_wme_policy); | |
3951 | if (err) | |
3952 | return err; | |
3953 | ||
3954 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
3955 | params->uapsd_queues = nla_get_u8( | |
3956 | tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
3957 | if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
3958 | return -EINVAL; | |
3959 | ||
3960 | if (tb[NL80211_STA_WME_MAX_SP]) | |
3961 | params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
3962 | ||
3963 | if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
3964 | return -EINVAL; | |
3965 | ||
3966 | params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; | |
3967 | ||
3968 | return 0; | |
3969 | } | |
3970 | ||
c01fc9ad SD |
3971 | static int nl80211_parse_sta_channel_info(struct genl_info *info, |
3972 | struct station_parameters *params) | |
3973 | { | |
3974 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) { | |
3975 | params->supported_channels = | |
3976 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
3977 | params->supported_channels_len = | |
3978 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
3979 | /* | |
3980 | * Need to include at least one (first channel, number of | |
3981 | * channels) tuple for each subband, and must have proper | |
3982 | * tuples for the rest of the data as well. | |
3983 | */ | |
3984 | if (params->supported_channels_len < 2) | |
3985 | return -EINVAL; | |
3986 | if (params->supported_channels_len % 2) | |
3987 | return -EINVAL; | |
3988 | } | |
3989 | ||
3990 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) { | |
3991 | params->supported_oper_classes = | |
3992 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
3993 | params->supported_oper_classes_len = | |
3994 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
3995 | /* | |
3996 | * The value of the Length field of the Supported Operating | |
3997 | * Classes element is between 2 and 253. | |
3998 | */ | |
3999 | if (params->supported_oper_classes_len < 2 || | |
4000 | params->supported_oper_classes_len > 253) | |
4001 | return -EINVAL; | |
4002 | } | |
4003 | return 0; | |
4004 | } | |
4005 | ||
ff276691 JB |
4006 | static int nl80211_set_station_tdls(struct genl_info *info, |
4007 | struct station_parameters *params) | |
4008 | { | |
c01fc9ad | 4009 | int err; |
ff276691 | 4010 | /* Dummy STA entry gets updated once the peer capabilities are known */ |
5e4b6f56 JM |
4011 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
4012 | params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); | |
ff276691 JB |
4013 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4014 | params->ht_capa = | |
4015 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4016 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) | |
4017 | params->vht_capa = | |
4018 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4019 | ||
c01fc9ad SD |
4020 | err = nl80211_parse_sta_channel_info(info, params); |
4021 | if (err) | |
4022 | return err; | |
4023 | ||
ff276691 JB |
4024 | return nl80211_parse_sta_wme(info, params); |
4025 | } | |
4026 | ||
5727ef1b JB |
4027 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) |
4028 | { | |
4c476991 | 4029 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 4030 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b | 4031 | struct station_parameters params; |
77ee7c89 JB |
4032 | u8 *mac_addr; |
4033 | int err; | |
5727ef1b JB |
4034 | |
4035 | memset(¶ms, 0, sizeof(params)); | |
4036 | ||
4037 | params.listen_interval = -1; | |
4038 | ||
77ee7c89 JB |
4039 | if (!rdev->ops->change_station) |
4040 | return -EOPNOTSUPP; | |
4041 | ||
5727ef1b JB |
4042 | if (info->attrs[NL80211_ATTR_STA_AID]) |
4043 | return -EINVAL; | |
4044 | ||
4045 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4046 | return -EINVAL; | |
4047 | ||
4048 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4049 | ||
4050 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
4051 | params.supported_rates = | |
4052 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4053 | params.supported_rates_len = | |
4054 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4055 | } | |
4056 | ||
9d62a986 JM |
4057 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4058 | params.capability = | |
4059 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4060 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4061 | } | |
4062 | ||
4063 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4064 | params.ext_capab = | |
4065 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4066 | params.ext_capab_len = | |
4067 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4068 | } | |
4069 | ||
df881293 | 4070 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
ba23d206 | 4071 | return -EINVAL; |
36aedc90 | 4072 | |
bdd3ae3d | 4073 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
4074 | return -EINVAL; |
4075 | ||
f8bacc21 | 4076 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
2ec600d6 | 4077 | params.plink_action = |
f8bacc21 JB |
4078 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4079 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4080 | return -EINVAL; | |
4081 | } | |
2ec600d6 | 4082 | |
f8bacc21 | 4083 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) { |
9c3990aa | 4084 | params.plink_state = |
f8bacc21 JB |
4085 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); |
4086 | if (params.plink_state >= NUM_NL80211_PLINK_STATES) | |
4087 | return -EINVAL; | |
4088 | params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE; | |
4089 | } | |
9c3990aa | 4090 | |
3b1c5a53 MP |
4091 | if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) { |
4092 | enum nl80211_mesh_power_mode pm = nla_get_u32( | |
4093 | info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); | |
4094 | ||
4095 | if (pm <= NL80211_MESH_POWER_UNKNOWN || | |
4096 | pm > NL80211_MESH_POWER_MAX) | |
4097 | return -EINVAL; | |
4098 | ||
4099 | params.local_pm = pm; | |
4100 | } | |
4101 | ||
77ee7c89 JB |
4102 | /* Include parameters for TDLS peer (will check later) */ |
4103 | err = nl80211_set_station_tdls(info, ¶ms); | |
4104 | if (err) | |
4105 | return err; | |
4106 | ||
4107 | params.vlan = get_vlan(info, rdev); | |
4108 | if (IS_ERR(params.vlan)) | |
4109 | return PTR_ERR(params.vlan); | |
4110 | ||
a97f4424 JB |
4111 | switch (dev->ieee80211_ptr->iftype) { |
4112 | case NL80211_IFTYPE_AP: | |
4113 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 4114 | case NL80211_IFTYPE_P2P_GO: |
074ac8df | 4115 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 4116 | case NL80211_IFTYPE_STATION: |
267335d6 | 4117 | case NL80211_IFTYPE_ADHOC: |
a97f4424 | 4118 | case NL80211_IFTYPE_MESH_POINT: |
a97f4424 JB |
4119 | break; |
4120 | default: | |
77ee7c89 JB |
4121 | err = -EOPNOTSUPP; |
4122 | goto out_put_vlan; | |
034d655e JB |
4123 | } |
4124 | ||
77ee7c89 | 4125 | /* driver will call cfg80211_check_station_change() */ |
e35e4d28 | 4126 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 4127 | |
77ee7c89 | 4128 | out_put_vlan: |
5727ef1b JB |
4129 | if (params.vlan) |
4130 | dev_put(params.vlan); | |
3b85875a | 4131 | |
5727ef1b JB |
4132 | return err; |
4133 | } | |
4134 | ||
4135 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
4136 | { | |
4c476991 | 4137 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 4138 | int err; |
4c476991 | 4139 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
4140 | struct station_parameters params; |
4141 | u8 *mac_addr = NULL; | |
4142 | ||
4143 | memset(¶ms, 0, sizeof(params)); | |
4144 | ||
984c311b JB |
4145 | if (!rdev->ops->add_station) |
4146 | return -EOPNOTSUPP; | |
4147 | ||
5727ef1b JB |
4148 | if (!info->attrs[NL80211_ATTR_MAC]) |
4149 | return -EINVAL; | |
4150 | ||
5727ef1b JB |
4151 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
4152 | return -EINVAL; | |
4153 | ||
4154 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
4155 | return -EINVAL; | |
4156 | ||
5e4b6f56 JM |
4157 | if (!info->attrs[NL80211_ATTR_STA_AID] && |
4158 | !info->attrs[NL80211_ATTR_PEER_AID]) | |
0e956c13 TLSC |
4159 | return -EINVAL; |
4160 | ||
5727ef1b JB |
4161 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4162 | params.supported_rates = | |
4163 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4164 | params.supported_rates_len = | |
4165 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4166 | params.listen_interval = | |
4167 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 4168 | |
3d124ea2 | 4169 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
5e4b6f56 | 4170 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
3d124ea2 JM |
4171 | else |
4172 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
0e956c13 TLSC |
4173 | if (!params.aid || params.aid > IEEE80211_MAX_AID) |
4174 | return -EINVAL; | |
51b50fbe | 4175 | |
9d62a986 JM |
4176 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4177 | params.capability = | |
4178 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4179 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4180 | } | |
4181 | ||
4182 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4183 | params.ext_capab = | |
4184 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4185 | params.ext_capab_len = | |
4186 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4187 | } | |
4188 | ||
36aedc90 JM |
4189 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4190 | params.ht_capa = | |
4191 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 4192 | |
f461be3e MP |
4193 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
4194 | params.vht_capa = | |
4195 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4196 | ||
60f4a7b1 MK |
4197 | if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { |
4198 | params.opmode_notif_used = true; | |
4199 | params.opmode_notif = | |
4200 | nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); | |
4201 | } | |
4202 | ||
f8bacc21 | 4203 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
96b78dff | 4204 | params.plink_action = |
f8bacc21 JB |
4205 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4206 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4207 | return -EINVAL; | |
4208 | } | |
96b78dff | 4209 | |
c01fc9ad SD |
4210 | err = nl80211_parse_sta_channel_info(info, ¶ms); |
4211 | if (err) | |
4212 | return err; | |
4213 | ||
ff276691 JB |
4214 | err = nl80211_parse_sta_wme(info, ¶ms); |
4215 | if (err) | |
4216 | return err; | |
bdd90d5e | 4217 | |
bdd3ae3d | 4218 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
4219 | return -EINVAL; |
4220 | ||
77ee7c89 JB |
4221 | /* When you run into this, adjust the code below for the new flag */ |
4222 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
4223 | ||
bdd90d5e JB |
4224 | switch (dev->ieee80211_ptr->iftype) { |
4225 | case NL80211_IFTYPE_AP: | |
4226 | case NL80211_IFTYPE_AP_VLAN: | |
4227 | case NL80211_IFTYPE_P2P_GO: | |
984c311b JB |
4228 | /* ignore WME attributes if iface/sta is not capable */ |
4229 | if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) || | |
4230 | !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) | |
4231 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
c75786c9 | 4232 | |
bdd90d5e | 4233 | /* TDLS peers cannot be added */ |
3d124ea2 JM |
4234 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4235 | info->attrs[NL80211_ATTR_PEER_AID]) | |
4319e193 | 4236 | return -EINVAL; |
bdd90d5e JB |
4237 | /* but don't bother the driver with it */ |
4238 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 4239 | |
d582cffb JB |
4240 | /* allow authenticated/associated only if driver handles it */ |
4241 | if (!(rdev->wiphy.features & | |
4242 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
4243 | params.sta_flags_mask & | |
4244 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4245 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
4246 | return -EINVAL; | |
4247 | ||
bdd90d5e JB |
4248 | /* must be last in here for error handling */ |
4249 | params.vlan = get_vlan(info, rdev); | |
4250 | if (IS_ERR(params.vlan)) | |
4251 | return PTR_ERR(params.vlan); | |
4252 | break; | |
4253 | case NL80211_IFTYPE_MESH_POINT: | |
984c311b JB |
4254 | /* ignore uAPSD data */ |
4255 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4256 | ||
d582cffb JB |
4257 | /* associated is disallowed */ |
4258 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) | |
4259 | return -EINVAL; | |
bdd90d5e | 4260 | /* TDLS peers cannot be added */ |
3d124ea2 JM |
4261 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4262 | info->attrs[NL80211_ATTR_PEER_AID]) | |
bdd90d5e JB |
4263 | return -EINVAL; |
4264 | break; | |
4265 | case NL80211_IFTYPE_STATION: | |
93d08f0b | 4266 | case NL80211_IFTYPE_P2P_CLIENT: |
984c311b JB |
4267 | /* ignore uAPSD data */ |
4268 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4269 | ||
77ee7c89 JB |
4270 | /* these are disallowed */ |
4271 | if (params.sta_flags_mask & | |
4272 | (BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4273 | BIT(NL80211_STA_FLAG_AUTHENTICATED))) | |
d582cffb | 4274 | return -EINVAL; |
bdd90d5e JB |
4275 | /* Only TDLS peers can be added */ |
4276 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
4277 | return -EINVAL; | |
4278 | /* Can only add if TDLS ... */ | |
4279 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
4280 | return -EOPNOTSUPP; | |
4281 | /* ... with external setup is supported */ | |
4282 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
4283 | return -EOPNOTSUPP; | |
77ee7c89 JB |
4284 | /* |
4285 | * Older wpa_supplicant versions always mark the TDLS peer | |
4286 | * as authorized, but it shouldn't yet be. | |
4287 | */ | |
4288 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED); | |
bdd90d5e JB |
4289 | break; |
4290 | default: | |
4291 | return -EOPNOTSUPP; | |
c75786c9 EP |
4292 | } |
4293 | ||
bdd90d5e | 4294 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 4295 | |
e35e4d28 | 4296 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 4297 | |
5727ef1b JB |
4298 | if (params.vlan) |
4299 | dev_put(params.vlan); | |
5727ef1b JB |
4300 | return err; |
4301 | } | |
4302 | ||
4303 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
4304 | { | |
4c476991 JB |
4305 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4306 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
4307 | u8 *mac_addr = NULL; |
4308 | ||
4309 | if (info->attrs[NL80211_ATTR_MAC]) | |
4310 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4311 | ||
e80cf853 | 4312 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 4313 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 4314 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
4315 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4316 | return -EINVAL; | |
5727ef1b | 4317 | |
4c476991 JB |
4318 | if (!rdev->ops->del_station) |
4319 | return -EOPNOTSUPP; | |
3b85875a | 4320 | |
e35e4d28 | 4321 | return rdev_del_station(rdev, dev, mac_addr); |
5727ef1b JB |
4322 | } |
4323 | ||
15e47304 | 4324 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
2ec600d6 LCC |
4325 | int flags, struct net_device *dev, |
4326 | u8 *dst, u8 *next_hop, | |
4327 | struct mpath_info *pinfo) | |
4328 | { | |
4329 | void *hdr; | |
4330 | struct nlattr *pinfoattr; | |
4331 | ||
15e47304 | 4332 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); |
2ec600d6 LCC |
4333 | if (!hdr) |
4334 | return -1; | |
4335 | ||
9360ffd1 DM |
4336 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4337 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
4338 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
4339 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
4340 | goto nla_put_failure; | |
f5ea9120 | 4341 | |
2ec600d6 LCC |
4342 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
4343 | if (!pinfoattr) | |
4344 | goto nla_put_failure; | |
9360ffd1 DM |
4345 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
4346 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
4347 | pinfo->frame_qlen)) | |
4348 | goto nla_put_failure; | |
4349 | if (((pinfo->filled & MPATH_INFO_SN) && | |
4350 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
4351 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
4352 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
4353 | pinfo->metric)) || | |
4354 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
4355 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
4356 | pinfo->exptime)) || | |
4357 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
4358 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
4359 | pinfo->flags)) || | |
4360 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
4361 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
4362 | pinfo->discovery_timeout)) || | |
4363 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
4364 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
4365 | pinfo->discovery_retries))) | |
4366 | goto nla_put_failure; | |
2ec600d6 LCC |
4367 | |
4368 | nla_nest_end(msg, pinfoattr); | |
4369 | ||
4370 | return genlmsg_end(msg, hdr); | |
4371 | ||
4372 | nla_put_failure: | |
bc3ed28c TG |
4373 | genlmsg_cancel(msg, hdr); |
4374 | return -EMSGSIZE; | |
2ec600d6 LCC |
4375 | } |
4376 | ||
4377 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 4378 | struct netlink_callback *cb) |
2ec600d6 | 4379 | { |
2ec600d6 | 4380 | struct mpath_info pinfo; |
1b8ec87a | 4381 | struct cfg80211_registered_device *rdev; |
97990a06 | 4382 | struct wireless_dev *wdev; |
2ec600d6 LCC |
4383 | u8 dst[ETH_ALEN]; |
4384 | u8 next_hop[ETH_ALEN]; | |
97990a06 | 4385 | int path_idx = cb->args[2]; |
2ec600d6 | 4386 | int err; |
2ec600d6 | 4387 | |
1b8ec87a | 4388 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
4389 | if (err) |
4390 | return err; | |
bba95fef | 4391 | |
1b8ec87a | 4392 | if (!rdev->ops->dump_mpath) { |
eec60b03 | 4393 | err = -EOPNOTSUPP; |
bba95fef JB |
4394 | goto out_err; |
4395 | } | |
4396 | ||
97990a06 | 4397 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { |
eec60b03 | 4398 | err = -EOPNOTSUPP; |
0448b5fc | 4399 | goto out_err; |
eec60b03 JM |
4400 | } |
4401 | ||
bba95fef | 4402 | while (1) { |
1b8ec87a | 4403 | err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst, |
97990a06 | 4404 | next_hop, &pinfo); |
bba95fef | 4405 | if (err == -ENOENT) |
2ec600d6 | 4406 | break; |
bba95fef | 4407 | if (err) |
3b85875a | 4408 | goto out_err; |
2ec600d6 | 4409 | |
15e47304 | 4410 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
bba95fef | 4411 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
97990a06 | 4412 | wdev->netdev, dst, next_hop, |
bba95fef JB |
4413 | &pinfo) < 0) |
4414 | goto out; | |
2ec600d6 | 4415 | |
bba95fef | 4416 | path_idx++; |
2ec600d6 | 4417 | } |
2ec600d6 | 4418 | |
2ec600d6 | 4419 | |
bba95fef | 4420 | out: |
97990a06 | 4421 | cb->args[2] = path_idx; |
bba95fef | 4422 | err = skb->len; |
bba95fef | 4423 | out_err: |
1b8ec87a | 4424 | nl80211_finish_wdev_dump(rdev); |
bba95fef | 4425 | return err; |
2ec600d6 LCC |
4426 | } |
4427 | ||
4428 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
4429 | { | |
4c476991 | 4430 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 4431 | int err; |
4c476991 | 4432 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
4433 | struct mpath_info pinfo; |
4434 | struct sk_buff *msg; | |
4435 | u8 *dst = NULL; | |
4436 | u8 next_hop[ETH_ALEN]; | |
4437 | ||
4438 | memset(&pinfo, 0, sizeof(pinfo)); | |
4439 | ||
4440 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4441 | return -EINVAL; | |
4442 | ||
4443 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4444 | ||
4c476991 JB |
4445 | if (!rdev->ops->get_mpath) |
4446 | return -EOPNOTSUPP; | |
2ec600d6 | 4447 | |
4c476991 JB |
4448 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4449 | return -EOPNOTSUPP; | |
eec60b03 | 4450 | |
e35e4d28 | 4451 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
2ec600d6 | 4452 | if (err) |
4c476991 | 4453 | return err; |
2ec600d6 | 4454 | |
fd2120ca | 4455 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 4456 | if (!msg) |
4c476991 | 4457 | return -ENOMEM; |
2ec600d6 | 4458 | |
15e47304 | 4459 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4c476991 JB |
4460 | dev, dst, next_hop, &pinfo) < 0) { |
4461 | nlmsg_free(msg); | |
4462 | return -ENOBUFS; | |
4463 | } | |
3b85875a | 4464 | |
4c476991 | 4465 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
4466 | } |
4467 | ||
4468 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
4469 | { | |
4c476991 JB |
4470 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4471 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4472 | u8 *dst = NULL; |
4473 | u8 *next_hop = NULL; | |
4474 | ||
4475 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4476 | return -EINVAL; | |
4477 | ||
4478 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4479 | return -EINVAL; | |
4480 | ||
4481 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4482 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4483 | ||
4c476991 JB |
4484 | if (!rdev->ops->change_mpath) |
4485 | return -EOPNOTSUPP; | |
35a8efe1 | 4486 | |
4c476991 JB |
4487 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4488 | return -EOPNOTSUPP; | |
2ec600d6 | 4489 | |
e35e4d28 | 4490 | return rdev_change_mpath(rdev, dev, dst, next_hop); |
2ec600d6 | 4491 | } |
4c476991 | 4492 | |
2ec600d6 LCC |
4493 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
4494 | { | |
4c476991 JB |
4495 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4496 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4497 | u8 *dst = NULL; |
4498 | u8 *next_hop = NULL; | |
4499 | ||
4500 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4501 | return -EINVAL; | |
4502 | ||
4503 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4504 | return -EINVAL; | |
4505 | ||
4506 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4507 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4508 | ||
4c476991 JB |
4509 | if (!rdev->ops->add_mpath) |
4510 | return -EOPNOTSUPP; | |
35a8efe1 | 4511 | |
4c476991 JB |
4512 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4513 | return -EOPNOTSUPP; | |
2ec600d6 | 4514 | |
e35e4d28 | 4515 | return rdev_add_mpath(rdev, dev, dst, next_hop); |
2ec600d6 LCC |
4516 | } |
4517 | ||
4518 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
4519 | { | |
4c476991 JB |
4520 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4521 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4522 | u8 *dst = NULL; |
4523 | ||
4524 | if (info->attrs[NL80211_ATTR_MAC]) | |
4525 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4526 | ||
4c476991 JB |
4527 | if (!rdev->ops->del_mpath) |
4528 | return -EOPNOTSUPP; | |
3b85875a | 4529 | |
e35e4d28 | 4530 | return rdev_del_mpath(rdev, dev, dst); |
2ec600d6 LCC |
4531 | } |
4532 | ||
9f1ba906 JM |
4533 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
4534 | { | |
4c476991 JB |
4535 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4536 | struct net_device *dev = info->user_ptr[1]; | |
c56589ed | 4537 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
9f1ba906 | 4538 | struct bss_parameters params; |
c56589ed | 4539 | int err; |
9f1ba906 JM |
4540 | |
4541 | memset(¶ms, 0, sizeof(params)); | |
4542 | /* default to not changing parameters */ | |
4543 | params.use_cts_prot = -1; | |
4544 | params.use_short_preamble = -1; | |
4545 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 4546 | params.ap_isolate = -1; |
50b12f59 | 4547 | params.ht_opmode = -1; |
53cabad7 JB |
4548 | params.p2p_ctwindow = -1; |
4549 | params.p2p_opp_ps = -1; | |
9f1ba906 JM |
4550 | |
4551 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
4552 | params.use_cts_prot = | |
4553 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
4554 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
4555 | params.use_short_preamble = | |
4556 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
4557 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
4558 | params.use_short_slot_time = | |
4559 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
4560 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4561 | params.basic_rates = | |
4562 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4563 | params.basic_rates_len = | |
4564 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4565 | } | |
fd8aaaf3 FF |
4566 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
4567 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
4568 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
4569 | params.ht_opmode = | |
4570 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 4571 | |
53cabad7 JB |
4572 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
4573 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4574 | return -EINVAL; | |
4575 | params.p2p_ctwindow = | |
4576 | nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
4577 | if (params.p2p_ctwindow < 0) | |
4578 | return -EINVAL; | |
4579 | if (params.p2p_ctwindow != 0 && | |
4580 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
4581 | return -EINVAL; | |
4582 | } | |
4583 | ||
4584 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
4585 | u8 tmp; | |
4586 | ||
4587 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4588 | return -EINVAL; | |
4589 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
4590 | if (tmp > 1) | |
4591 | return -EINVAL; | |
4592 | params.p2p_opp_ps = tmp; | |
4593 | if (params.p2p_opp_ps && | |
4594 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
4595 | return -EINVAL; | |
4596 | } | |
4597 | ||
4c476991 JB |
4598 | if (!rdev->ops->change_bss) |
4599 | return -EOPNOTSUPP; | |
9f1ba906 | 4600 | |
074ac8df | 4601 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
4602 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4603 | return -EOPNOTSUPP; | |
3b85875a | 4604 | |
c56589ed SW |
4605 | wdev_lock(wdev); |
4606 | err = rdev_change_bss(rdev, dev, ¶ms); | |
4607 | wdev_unlock(wdev); | |
4608 | ||
4609 | return err; | |
9f1ba906 JM |
4610 | } |
4611 | ||
b54452b0 | 4612 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
4613 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
4614 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
4615 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
4616 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
4617 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
4618 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
089027e5 | 4619 | [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 }, |
b2e1b302 LR |
4620 | }; |
4621 | ||
4622 | static int parse_reg_rule(struct nlattr *tb[], | |
4623 | struct ieee80211_reg_rule *reg_rule) | |
4624 | { | |
4625 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
4626 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
4627 | ||
4628 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
4629 | return -EINVAL; | |
4630 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
4631 | return -EINVAL; | |
4632 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
4633 | return -EINVAL; | |
b0dfd2ea JD |
4634 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) |
4635 | return -EINVAL; | |
b2e1b302 LR |
4636 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) |
4637 | return -EINVAL; | |
4638 | ||
4639 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
4640 | ||
4641 | freq_range->start_freq_khz = | |
4642 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
4643 | freq_range->end_freq_khz = | |
4644 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
b0dfd2ea JD |
4645 | freq_range->max_bandwidth_khz = |
4646 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
b2e1b302 LR |
4647 | |
4648 | power_rule->max_eirp = | |
4649 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
4650 | ||
4651 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
4652 | power_rule->max_antenna_gain = | |
4653 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
4654 | ||
089027e5 JD |
4655 | if (tb[NL80211_ATTR_DFS_CAC_TIME]) |
4656 | reg_rule->dfs_cac_ms = | |
4657 | nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]); | |
4658 | ||
b2e1b302 LR |
4659 | return 0; |
4660 | } | |
4661 | ||
4662 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
4663 | { | |
b2e1b302 | 4664 | char *data = NULL; |
57b5ce07 | 4665 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
b2e1b302 | 4666 | |
80778f18 LR |
4667 | /* |
4668 | * You should only get this when cfg80211 hasn't yet initialized | |
4669 | * completely when built-in to the kernel right between the time | |
4670 | * window between nl80211_init() and regulatory_init(), if that is | |
4671 | * even possible. | |
4672 | */ | |
458f4f9e | 4673 | if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) |
fe33eb39 | 4674 | return -EINPROGRESS; |
80778f18 | 4675 | |
57b5ce07 LR |
4676 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
4677 | user_reg_hint_type = | |
4678 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
4679 | else | |
4680 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
4681 | ||
4682 | switch (user_reg_hint_type) { | |
4683 | case NL80211_USER_REG_HINT_USER: | |
4684 | case NL80211_USER_REG_HINT_CELL_BASE: | |
52616f2b IP |
4685 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
4686 | return -EINVAL; | |
4687 | ||
4688 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
4689 | return regulatory_hint_user(data, user_reg_hint_type); | |
4690 | case NL80211_USER_REG_HINT_INDOOR: | |
4691 | return regulatory_hint_indoor_user(); | |
57b5ce07 LR |
4692 | default: |
4693 | return -EINVAL; | |
4694 | } | |
b2e1b302 LR |
4695 | } |
4696 | ||
24bdd9f4 | 4697 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 4698 | struct genl_info *info) |
93da9cc1 | 4699 | { |
4c476991 | 4700 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 4701 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
4702 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
4703 | struct mesh_config cur_params; | |
4704 | int err = 0; | |
93da9cc1 | 4705 | void *hdr; |
4706 | struct nlattr *pinfoattr; | |
4707 | struct sk_buff *msg; | |
4708 | ||
29cbe68c JB |
4709 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
4710 | return -EOPNOTSUPP; | |
4711 | ||
24bdd9f4 | 4712 | if (!rdev->ops->get_mesh_config) |
4c476991 | 4713 | return -EOPNOTSUPP; |
f3f92586 | 4714 | |
29cbe68c JB |
4715 | wdev_lock(wdev); |
4716 | /* If not connected, get default parameters */ | |
4717 | if (!wdev->mesh_id_len) | |
4718 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
4719 | else | |
e35e4d28 | 4720 | err = rdev_get_mesh_config(rdev, dev, &cur_params); |
29cbe68c JB |
4721 | wdev_unlock(wdev); |
4722 | ||
93da9cc1 | 4723 | if (err) |
4c476991 | 4724 | return err; |
93da9cc1 | 4725 | |
4726 | /* Draw up a netlink message to send back */ | |
fd2120ca | 4727 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
4728 | if (!msg) |
4729 | return -ENOMEM; | |
15e47304 | 4730 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
24bdd9f4 | 4731 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 4732 | if (!hdr) |
efe1cf0c | 4733 | goto out; |
24bdd9f4 | 4734 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 4735 | if (!pinfoattr) |
4736 | goto nla_put_failure; | |
9360ffd1 DM |
4737 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4738 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
4739 | cur_params.dot11MeshRetryTimeout) || | |
4740 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
4741 | cur_params.dot11MeshConfirmTimeout) || | |
4742 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
4743 | cur_params.dot11MeshHoldingTimeout) || | |
4744 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
4745 | cur_params.dot11MeshMaxPeerLinks) || | |
4746 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
4747 | cur_params.dot11MeshMaxRetries) || | |
4748 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
4749 | cur_params.dot11MeshTTL) || | |
4750 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
4751 | cur_params.element_ttl) || | |
4752 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
4753 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
4754 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
4755 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
4756 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
4757 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
4758 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
4759 | cur_params.path_refresh_time) || | |
4760 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
4761 | cur_params.min_discovery_timeout) || | |
4762 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
4763 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
4764 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
4765 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
4766 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
4767 | cur_params.dot11MeshHWMPperrMinInterval) || | |
4768 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
4769 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
4770 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
4771 | cur_params.dot11MeshHWMPRootMode) || | |
4772 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
4773 | cur_params.dot11MeshHWMPRannInterval) || | |
4774 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
4775 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
4776 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
4777 | cur_params.dot11MeshForwarding) || | |
4778 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
4779 | cur_params.rssi_threshold) || |
4780 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
ac1073a6 CYY |
4781 | cur_params.ht_opmode) || |
4782 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
4783 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
4784 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
4785 | cur_params.dot11MeshHWMProotInterval) || |
4786 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3b1c5a53 MP |
4787 | cur_params.dot11MeshHWMPconfirmationInterval) || |
4788 | nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, | |
4789 | cur_params.power_mode) || | |
4790 | nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, | |
8e7c0538 CT |
4791 | cur_params.dot11MeshAwakeWindowDuration) || |
4792 | nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, | |
4793 | cur_params.plink_timeout)) | |
9360ffd1 | 4794 | goto nla_put_failure; |
93da9cc1 | 4795 | nla_nest_end(msg, pinfoattr); |
4796 | genlmsg_end(msg, hdr); | |
4c476991 | 4797 | return genlmsg_reply(msg, info); |
93da9cc1 | 4798 | |
3b85875a | 4799 | nla_put_failure: |
93da9cc1 | 4800 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 4801 | out: |
d080e275 | 4802 | nlmsg_free(msg); |
4c476991 | 4803 | return -ENOBUFS; |
93da9cc1 | 4804 | } |
4805 | ||
b54452b0 | 4806 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 4807 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
4808 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
4809 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
4810 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
4811 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
4812 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 4813 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 4814 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 4815 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 4816 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
4817 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
4818 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
4819 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
4820 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 4821 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 4822 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 4823 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 4824 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 4825 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 4826 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
a4f606ea CYY |
4827 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
4828 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
ac1073a6 CYY |
4829 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
4830 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
728b19e5 | 4831 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
3b1c5a53 MP |
4832 | [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 }, |
4833 | [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, | |
8e7c0538 | 4834 | [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 }, |
93da9cc1 | 4835 | }; |
4836 | ||
c80d545d JC |
4837 | static const struct nla_policy |
4838 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 4839 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
4840 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
4841 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 4842 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
6e16d90b | 4843 | [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 }, |
bb2798d4 | 4844 | [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG }, |
581a8b0f | 4845 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
a4f606ea | 4846 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 4847 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
4848 | }; |
4849 | ||
24bdd9f4 | 4850 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
4851 | struct mesh_config *cfg, |
4852 | u32 *mask_out) | |
93da9cc1 | 4853 | { |
93da9cc1 | 4854 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 4855 | u32 mask = 0; |
93da9cc1 | 4856 | |
ea54fba2 MP |
4857 | #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \ |
4858 | do { \ | |
4859 | if (tb[attr]) { \ | |
4860 | if (fn(tb[attr]) < min || fn(tb[attr]) > max) \ | |
4861 | return -EINVAL; \ | |
4862 | cfg->param = fn(tb[attr]); \ | |
4863 | mask |= (1 << (attr - 1)); \ | |
4864 | } \ | |
4865 | } while (0) | |
bd90fdcc JB |
4866 | |
4867 | ||
24bdd9f4 | 4868 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 4869 | return -EINVAL; |
4870 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 4871 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 4872 | nl80211_meshconf_params_policy)) |
93da9cc1 | 4873 | return -EINVAL; |
4874 | ||
93da9cc1 | 4875 | /* This makes sure that there aren't more than 32 mesh config |
4876 | * parameters (otherwise our bitfield scheme would not work.) */ | |
4877 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
4878 | ||
4879 | /* Fill in the params struct */ | |
ea54fba2 | 4880 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255, |
a4f606ea CYY |
4881 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
4882 | nla_get_u16); | |
ea54fba2 | 4883 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255, |
a4f606ea CYY |
4884 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
4885 | nla_get_u16); | |
ea54fba2 | 4886 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255, |
a4f606ea CYY |
4887 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
4888 | nla_get_u16); | |
ea54fba2 | 4889 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255, |
a4f606ea CYY |
4890 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
4891 | nla_get_u16); | |
ea54fba2 | 4892 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16, |
a4f606ea CYY |
4893 | mask, NL80211_MESHCONF_MAX_RETRIES, |
4894 | nla_get_u8); | |
ea54fba2 | 4895 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255, |
a4f606ea | 4896 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
ea54fba2 | 4897 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255, |
a4f606ea CYY |
4898 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
4899 | nla_get_u8); | |
ea54fba2 | 4900 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1, |
a4f606ea CYY |
4901 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
4902 | nla_get_u8); | |
ea54fba2 MP |
4903 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
4904 | 1, 255, mask, | |
a4f606ea CYY |
4905 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
4906 | nla_get_u32); | |
ea54fba2 | 4907 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255, |
a4f606ea CYY |
4908 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
4909 | nla_get_u8); | |
ea54fba2 | 4910 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535, |
a4f606ea CYY |
4911 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
4912 | nla_get_u32); | |
ea54fba2 | 4913 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535, |
a4f606ea CYY |
4914 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
4915 | nla_get_u16); | |
ea54fba2 MP |
4916 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, |
4917 | 1, 65535, mask, | |
a4f606ea CYY |
4918 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
4919 | nla_get_u32); | |
93da9cc1 | 4920 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
ea54fba2 MP |
4921 | 1, 65535, mask, |
4922 | NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
a4f606ea | 4923 | nla_get_u16); |
dca7e943 | 4924 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
ea54fba2 MP |
4925 | 1, 65535, mask, |
4926 | NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
a4f606ea | 4927 | nla_get_u16); |
93da9cc1 | 4928 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
4929 | dot11MeshHWMPnetDiameterTraversalTime, |
4930 | 1, 65535, mask, | |
a4f606ea CYY |
4931 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
4932 | nla_get_u16); | |
ea54fba2 MP |
4933 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4, |
4934 | mask, NL80211_MESHCONF_HWMP_ROOTMODE, | |
4935 | nla_get_u8); | |
4936 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535, | |
4937 | mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
a4f606ea | 4938 | nla_get_u16); |
63c5723b | 4939 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
4940 | dot11MeshGateAnnouncementProtocol, 0, 1, |
4941 | mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
a4f606ea | 4942 | nla_get_u8); |
ea54fba2 | 4943 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1, |
a4f606ea CYY |
4944 | mask, NL80211_MESHCONF_FORWARDING, |
4945 | nla_get_u8); | |
83374fe9 | 4946 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0, |
a4f606ea | 4947 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
83374fe9 | 4948 | nla_get_s32); |
ea54fba2 | 4949 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16, |
a4f606ea | 4950 | mask, NL80211_MESHCONF_HT_OPMODE, |
ac1073a6 CYY |
4951 | nla_get_u16); |
4952 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
ea54fba2 | 4953 | 1, 65535, mask, |
ac1073a6 CYY |
4954 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
4955 | nla_get_u32); | |
ea54fba2 | 4956 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535, |
ac1073a6 | 4957 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
728b19e5 CYY |
4958 | nla_get_u16); |
4959 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
ea54fba2 MP |
4960 | dot11MeshHWMPconfirmationInterval, |
4961 | 1, 65535, mask, | |
728b19e5 | 4962 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
a4f606ea | 4963 | nla_get_u16); |
3b1c5a53 MP |
4964 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, |
4965 | NL80211_MESH_POWER_ACTIVE, | |
4966 | NL80211_MESH_POWER_MAX, | |
4967 | mask, NL80211_MESHCONF_POWER_MODE, | |
4968 | nla_get_u32); | |
4969 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, | |
4970 | 0, 65535, mask, | |
4971 | NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); | |
8e7c0538 CT |
4972 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff, |
4973 | mask, NL80211_MESHCONF_PLINK_TIMEOUT, | |
4974 | nla_get_u32); | |
bd90fdcc JB |
4975 | if (mask_out) |
4976 | *mask_out = mask; | |
c80d545d | 4977 | |
bd90fdcc JB |
4978 | return 0; |
4979 | ||
4980 | #undef FILL_IN_MESH_PARAM_IF_SET | |
4981 | } | |
4982 | ||
c80d545d JC |
4983 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
4984 | struct mesh_setup *setup) | |
4985 | { | |
bb2798d4 | 4986 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
c80d545d JC |
4987 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; |
4988 | ||
4989 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
4990 | return -EINVAL; | |
4991 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
4992 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
4993 | nl80211_mesh_setup_params_policy)) | |
4994 | return -EINVAL; | |
4995 | ||
d299a1f2 JC |
4996 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
4997 | setup->sync_method = | |
4998 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
4999 | IEEE80211_SYNC_METHOD_VENDOR : | |
5000 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
5001 | ||
c80d545d JC |
5002 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
5003 | setup->path_sel_proto = | |
5004 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
5005 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
5006 | IEEE80211_PATH_PROTOCOL_HWMP; | |
5007 | ||
5008 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
5009 | setup->path_metric = | |
5010 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
5011 | IEEE80211_PATH_METRIC_VENDOR : | |
5012 | IEEE80211_PATH_METRIC_AIRTIME; | |
5013 | ||
581a8b0f JC |
5014 | |
5015 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 5016 | struct nlattr *ieattr = |
581a8b0f | 5017 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
5018 | if (!is_valid_ie_attr(ieattr)) |
5019 | return -EINVAL; | |
581a8b0f JC |
5020 | setup->ie = nla_data(ieattr); |
5021 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 5022 | } |
bb2798d4 TP |
5023 | if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] && |
5024 | !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM)) | |
5025 | return -EINVAL; | |
5026 | setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]); | |
b130e5ce JC |
5027 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
5028 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
bb2798d4 TP |
5029 | if (setup->is_secure) |
5030 | setup->user_mpm = true; | |
c80d545d | 5031 | |
6e16d90b CT |
5032 | if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) { |
5033 | if (!setup->user_mpm) | |
5034 | return -EINVAL; | |
5035 | setup->auth_id = | |
5036 | nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]); | |
5037 | } | |
5038 | ||
c80d545d JC |
5039 | return 0; |
5040 | } | |
5041 | ||
24bdd9f4 | 5042 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 5043 | struct genl_info *info) |
bd90fdcc JB |
5044 | { |
5045 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5046 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 5047 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
5048 | struct mesh_config cfg; |
5049 | u32 mask; | |
5050 | int err; | |
5051 | ||
29cbe68c JB |
5052 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
5053 | return -EOPNOTSUPP; | |
5054 | ||
24bdd9f4 | 5055 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
5056 | return -EOPNOTSUPP; |
5057 | ||
24bdd9f4 | 5058 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
5059 | if (err) |
5060 | return err; | |
5061 | ||
29cbe68c JB |
5062 | wdev_lock(wdev); |
5063 | if (!wdev->mesh_id_len) | |
5064 | err = -ENOLINK; | |
5065 | ||
5066 | if (!err) | |
e35e4d28 | 5067 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
29cbe68c JB |
5068 | |
5069 | wdev_unlock(wdev); | |
5070 | ||
5071 | return err; | |
93da9cc1 | 5072 | } |
5073 | ||
f130347c LR |
5074 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
5075 | { | |
458f4f9e | 5076 | const struct ieee80211_regdomain *regdom; |
f130347c LR |
5077 | struct sk_buff *msg; |
5078 | void *hdr = NULL; | |
5079 | struct nlattr *nl_reg_rules; | |
5080 | unsigned int i; | |
f130347c LR |
5081 | |
5082 | if (!cfg80211_regdomain) | |
5fe231e8 | 5083 | return -EINVAL; |
f130347c | 5084 | |
fd2120ca | 5085 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
5fe231e8 JB |
5086 | if (!msg) |
5087 | return -ENOBUFS; | |
f130347c | 5088 | |
15e47304 | 5089 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
f130347c LR |
5090 | NL80211_CMD_GET_REG); |
5091 | if (!hdr) | |
efe1cf0c | 5092 | goto put_failure; |
f130347c | 5093 | |
57b5ce07 LR |
5094 | if (reg_last_request_cell_base() && |
5095 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5096 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5097 | goto nla_put_failure; | |
5098 | ||
458f4f9e JB |
5099 | rcu_read_lock(); |
5100 | regdom = rcu_dereference(cfg80211_regdomain); | |
5101 | ||
5102 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || | |
5103 | (regdom->dfs_region && | |
5104 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) | |
5105 | goto nla_put_failure_rcu; | |
5106 | ||
f130347c LR |
5107 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); |
5108 | if (!nl_reg_rules) | |
458f4f9e | 5109 | goto nla_put_failure_rcu; |
f130347c | 5110 | |
458f4f9e | 5111 | for (i = 0; i < regdom->n_reg_rules; i++) { |
f130347c LR |
5112 | struct nlattr *nl_reg_rule; |
5113 | const struct ieee80211_reg_rule *reg_rule; | |
5114 | const struct ieee80211_freq_range *freq_range; | |
5115 | const struct ieee80211_power_rule *power_rule; | |
97524820 | 5116 | unsigned int max_bandwidth_khz; |
f130347c | 5117 | |
458f4f9e | 5118 | reg_rule = ®dom->reg_rules[i]; |
f130347c LR |
5119 | freq_range = ®_rule->freq_range; |
5120 | power_rule = ®_rule->power_rule; | |
5121 | ||
5122 | nl_reg_rule = nla_nest_start(msg, i); | |
5123 | if (!nl_reg_rule) | |
458f4f9e | 5124 | goto nla_put_failure_rcu; |
f130347c | 5125 | |
97524820 JD |
5126 | max_bandwidth_khz = freq_range->max_bandwidth_khz; |
5127 | if (!max_bandwidth_khz) | |
5128 | max_bandwidth_khz = reg_get_max_bandwidth(regdom, | |
5129 | reg_rule); | |
5130 | ||
9360ffd1 DM |
5131 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
5132 | reg_rule->flags) || | |
5133 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
5134 | freq_range->start_freq_khz) || | |
5135 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
5136 | freq_range->end_freq_khz) || | |
5137 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
97524820 | 5138 | max_bandwidth_khz) || |
9360ffd1 DM |
5139 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, |
5140 | power_rule->max_antenna_gain) || | |
5141 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
089027e5 JD |
5142 | power_rule->max_eirp) || |
5143 | nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME, | |
5144 | reg_rule->dfs_cac_ms)) | |
458f4f9e | 5145 | goto nla_put_failure_rcu; |
f130347c LR |
5146 | |
5147 | nla_nest_end(msg, nl_reg_rule); | |
5148 | } | |
458f4f9e | 5149 | rcu_read_unlock(); |
f130347c LR |
5150 | |
5151 | nla_nest_end(msg, nl_reg_rules); | |
5152 | ||
5153 | genlmsg_end(msg, hdr); | |
5fe231e8 | 5154 | return genlmsg_reply(msg, info); |
f130347c | 5155 | |
458f4f9e JB |
5156 | nla_put_failure_rcu: |
5157 | rcu_read_unlock(); | |
f130347c LR |
5158 | nla_put_failure: |
5159 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 5160 | put_failure: |
d080e275 | 5161 | nlmsg_free(msg); |
5fe231e8 | 5162 | return -EMSGSIZE; |
f130347c LR |
5163 | } |
5164 | ||
b2e1b302 LR |
5165 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
5166 | { | |
5167 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
5168 | struct nlattr *nl_reg_rule; | |
5169 | char *alpha2 = NULL; | |
5170 | int rem_reg_rules = 0, r = 0; | |
5171 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
4c7d3982 | 5172 | enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET; |
b2e1b302 LR |
5173 | struct ieee80211_regdomain *rd = NULL; |
5174 | ||
5175 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
5176 | return -EINVAL; | |
5177 | ||
5178 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
5179 | return -EINVAL; | |
5180 | ||
5181 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
5182 | ||
8b60b078 LR |
5183 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
5184 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
5185 | ||
b2e1b302 | 5186 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 5187 | rem_reg_rules) { |
b2e1b302 LR |
5188 | num_rules++; |
5189 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 5190 | return -EINVAL; |
b2e1b302 LR |
5191 | } |
5192 | ||
e438768f LR |
5193 | if (!reg_is_valid_request(alpha2)) |
5194 | return -EINVAL; | |
5195 | ||
b2e1b302 | 5196 | size_of_regd = sizeof(struct ieee80211_regdomain) + |
1a919318 | 5197 | num_rules * sizeof(struct ieee80211_reg_rule); |
b2e1b302 LR |
5198 | |
5199 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
6913b49a JB |
5200 | if (!rd) |
5201 | return -ENOMEM; | |
b2e1b302 LR |
5202 | |
5203 | rd->n_reg_rules = num_rules; | |
5204 | rd->alpha2[0] = alpha2[0]; | |
5205 | rd->alpha2[1] = alpha2[1]; | |
5206 | ||
8b60b078 LR |
5207 | /* |
5208 | * Disable DFS master mode if the DFS region was | |
5209 | * not supported or known on this kernel. | |
5210 | */ | |
5211 | if (reg_supported_dfs_region(dfs_region)) | |
5212 | rd->dfs_region = dfs_region; | |
5213 | ||
b2e1b302 | 5214 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 5215 | rem_reg_rules) { |
ae811e21 JB |
5216 | r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, |
5217 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
5218 | reg_rule_policy); | |
5219 | if (r) | |
5220 | goto bad_reg; | |
b2e1b302 LR |
5221 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); |
5222 | if (r) | |
5223 | goto bad_reg; | |
5224 | ||
5225 | rule_idx++; | |
5226 | ||
d0e18f83 LR |
5227 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
5228 | r = -EINVAL; | |
b2e1b302 | 5229 | goto bad_reg; |
d0e18f83 | 5230 | } |
b2e1b302 LR |
5231 | } |
5232 | ||
b2e1b302 | 5233 | r = set_regdom(rd); |
6913b49a | 5234 | /* set_regdom took ownership */ |
1a919318 | 5235 | rd = NULL; |
b2e1b302 | 5236 | |
d2372b31 | 5237 | bad_reg: |
b2e1b302 | 5238 | kfree(rd); |
d0e18f83 | 5239 | return r; |
b2e1b302 LR |
5240 | } |
5241 | ||
83f5e2cf JB |
5242 | static int validate_scan_freqs(struct nlattr *freqs) |
5243 | { | |
5244 | struct nlattr *attr1, *attr2; | |
5245 | int n_channels = 0, tmp1, tmp2; | |
5246 | ||
5247 | nla_for_each_nested(attr1, freqs, tmp1) { | |
5248 | n_channels++; | |
5249 | /* | |
5250 | * Some hardware has a limited channel list for | |
5251 | * scanning, and it is pretty much nonsensical | |
5252 | * to scan for a channel twice, so disallow that | |
5253 | * and don't require drivers to check that the | |
5254 | * channel list they get isn't longer than what | |
5255 | * they can scan, as long as they can scan all | |
5256 | * the channels they registered at once. | |
5257 | */ | |
5258 | nla_for_each_nested(attr2, freqs, tmp2) | |
5259 | if (attr1 != attr2 && | |
5260 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
5261 | return 0; | |
5262 | } | |
5263 | ||
5264 | return n_channels; | |
5265 | } | |
5266 | ||
2a519311 JB |
5267 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
5268 | { | |
4c476991 | 5269 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fd014284 | 5270 | struct wireless_dev *wdev = info->user_ptr[1]; |
2a519311 | 5271 | struct cfg80211_scan_request *request; |
2a519311 JB |
5272 | struct nlattr *attr; |
5273 | struct wiphy *wiphy; | |
83f5e2cf | 5274 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 5275 | size_t ie_len; |
2a519311 | 5276 | |
f4a11bb0 JB |
5277 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5278 | return -EINVAL; | |
5279 | ||
79c97e97 | 5280 | wiphy = &rdev->wiphy; |
2a519311 | 5281 | |
4c476991 JB |
5282 | if (!rdev->ops->scan) |
5283 | return -EOPNOTSUPP; | |
2a519311 | 5284 | |
f9d15d16 | 5285 | if (rdev->scan_req || rdev->scan_msg) { |
f9f47529 JB |
5286 | err = -EBUSY; |
5287 | goto unlock; | |
5288 | } | |
2a519311 JB |
5289 | |
5290 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
5291 | n_channels = validate_scan_freqs( |
5292 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
f9f47529 JB |
5293 | if (!n_channels) { |
5294 | err = -EINVAL; | |
5295 | goto unlock; | |
5296 | } | |
2a519311 | 5297 | } else { |
bdfbec2d | 5298 | n_channels = ieee80211_get_num_supported_channels(wiphy); |
2a519311 JB |
5299 | } |
5300 | ||
5301 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
5302 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
5303 | n_ssids++; | |
5304 | ||
f9f47529 JB |
5305 | if (n_ssids > wiphy->max_scan_ssids) { |
5306 | err = -EINVAL; | |
5307 | goto unlock; | |
5308 | } | |
2a519311 | 5309 | |
70692ad2 JM |
5310 | if (info->attrs[NL80211_ATTR_IE]) |
5311 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5312 | else | |
5313 | ie_len = 0; | |
5314 | ||
f9f47529 JB |
5315 | if (ie_len > wiphy->max_scan_ie_len) { |
5316 | err = -EINVAL; | |
5317 | goto unlock; | |
5318 | } | |
18a83659 | 5319 | |
2a519311 | 5320 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
5321 | + sizeof(*request->ssids) * n_ssids |
5322 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 5323 | + ie_len, GFP_KERNEL); |
f9f47529 JB |
5324 | if (!request) { |
5325 | err = -ENOMEM; | |
5326 | goto unlock; | |
5327 | } | |
2a519311 | 5328 | |
2a519311 | 5329 | if (n_ssids) |
5ba63533 | 5330 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 5331 | request->n_ssids = n_ssids; |
70692ad2 JM |
5332 | if (ie_len) { |
5333 | if (request->ssids) | |
5334 | request->ie = (void *)(request->ssids + n_ssids); | |
5335 | else | |
5336 | request->ie = (void *)(request->channels + n_channels); | |
5337 | } | |
2a519311 | 5338 | |
584991dc | 5339 | i = 0; |
2a519311 JB |
5340 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5341 | /* user specified, bail out if channel not found */ | |
2a519311 | 5342 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
5343 | struct ieee80211_channel *chan; |
5344 | ||
5345 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
5346 | ||
5347 | if (!chan) { | |
2a519311 JB |
5348 | err = -EINVAL; |
5349 | goto out_free; | |
5350 | } | |
584991dc JB |
5351 | |
5352 | /* ignore disabled channels */ | |
5353 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5354 | continue; | |
5355 | ||
5356 | request->channels[i] = chan; | |
2a519311 JB |
5357 | i++; |
5358 | } | |
5359 | } else { | |
34850ab2 JB |
5360 | enum ieee80211_band band; |
5361 | ||
2a519311 | 5362 | /* all channels */ |
2a519311 JB |
5363 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
5364 | int j; | |
5365 | if (!wiphy->bands[band]) | |
5366 | continue; | |
5367 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
5368 | struct ieee80211_channel *chan; |
5369 | ||
5370 | chan = &wiphy->bands[band]->channels[j]; | |
5371 | ||
5372 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5373 | continue; | |
5374 | ||
5375 | request->channels[i] = chan; | |
2a519311 JB |
5376 | i++; |
5377 | } | |
5378 | } | |
5379 | } | |
5380 | ||
584991dc JB |
5381 | if (!i) { |
5382 | err = -EINVAL; | |
5383 | goto out_free; | |
5384 | } | |
5385 | ||
5386 | request->n_channels = i; | |
5387 | ||
2a519311 JB |
5388 | i = 0; |
5389 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
5390 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
57a27e1d | 5391 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
5392 | err = -EINVAL; |
5393 | goto out_free; | |
5394 | } | |
57a27e1d | 5395 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 5396 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
5397 | i++; |
5398 | } | |
5399 | } | |
5400 | ||
70692ad2 JM |
5401 | if (info->attrs[NL80211_ATTR_IE]) { |
5402 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
5403 | memcpy((void *)request->ie, |
5404 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
5405 | request->ie_len); |
5406 | } | |
5407 | ||
34850ab2 | 5408 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
5409 | if (wiphy->bands[i]) |
5410 | request->rates[i] = | |
5411 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
5412 | |
5413 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
5414 | nla_for_each_nested(attr, | |
5415 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
5416 | tmp) { | |
5417 | enum ieee80211_band band = nla_type(attr); | |
5418 | ||
84404623 | 5419 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
5420 | err = -EINVAL; |
5421 | goto out_free; | |
5422 | } | |
1b09cd82 FF |
5423 | |
5424 | if (!wiphy->bands[band]) | |
5425 | continue; | |
5426 | ||
34850ab2 JB |
5427 | err = ieee80211_get_ratemask(wiphy->bands[band], |
5428 | nla_data(attr), | |
5429 | nla_len(attr), | |
5430 | &request->rates[band]); | |
5431 | if (err) | |
5432 | goto out_free; | |
5433 | } | |
5434 | } | |
5435 | ||
46856bbf | 5436 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
5437 | request->flags = nla_get_u32( |
5438 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
00c3a6ed JB |
5439 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5440 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
46856bbf SL |
5441 | err = -EOPNOTSUPP; |
5442 | goto out_free; | |
5443 | } | |
5444 | } | |
ed473771 | 5445 | |
e9f935e3 RM |
5446 | request->no_cck = |
5447 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
5448 | ||
fd014284 | 5449 | request->wdev = wdev; |
79c97e97 | 5450 | request->wiphy = &rdev->wiphy; |
15d6030b | 5451 | request->scan_start = jiffies; |
2a519311 | 5452 | |
79c97e97 | 5453 | rdev->scan_req = request; |
e35e4d28 | 5454 | err = rdev_scan(rdev, request); |
2a519311 | 5455 | |
463d0183 | 5456 | if (!err) { |
fd014284 JB |
5457 | nl80211_send_scan_start(rdev, wdev); |
5458 | if (wdev->netdev) | |
5459 | dev_hold(wdev->netdev); | |
4c476991 | 5460 | } else { |
2a519311 | 5461 | out_free: |
79c97e97 | 5462 | rdev->scan_req = NULL; |
2a519311 JB |
5463 | kfree(request); |
5464 | } | |
3b85875a | 5465 | |
f9f47529 | 5466 | unlock: |
2a519311 JB |
5467 | return err; |
5468 | } | |
5469 | ||
807f8a8c LC |
5470 | static int nl80211_start_sched_scan(struct sk_buff *skb, |
5471 | struct genl_info *info) | |
5472 | { | |
5473 | struct cfg80211_sched_scan_request *request; | |
5474 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5475 | struct net_device *dev = info->user_ptr[1]; | |
807f8a8c LC |
5476 | struct nlattr *attr; |
5477 | struct wiphy *wiphy; | |
a1f1c21c | 5478 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; |
bbe6ad6d | 5479 | u32 interval; |
807f8a8c LC |
5480 | enum ieee80211_band band; |
5481 | size_t ie_len; | |
a1f1c21c | 5482 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
ea73cbce | 5483 | s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF; |
807f8a8c LC |
5484 | |
5485 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
5486 | !rdev->ops->sched_scan_start) | |
5487 | return -EOPNOTSUPP; | |
5488 | ||
5489 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
5490 | return -EINVAL; | |
5491 | ||
bbe6ad6d LC |
5492 | if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) |
5493 | return -EINVAL; | |
5494 | ||
5495 | interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
5496 | if (interval == 0) | |
5497 | return -EINVAL; | |
5498 | ||
807f8a8c LC |
5499 | wiphy = &rdev->wiphy; |
5500 | ||
5501 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
5502 | n_channels = validate_scan_freqs( | |
5503 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
5504 | if (!n_channels) | |
5505 | return -EINVAL; | |
5506 | } else { | |
bdfbec2d | 5507 | n_channels = ieee80211_get_num_supported_channels(wiphy); |
807f8a8c LC |
5508 | } |
5509 | ||
5510 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
5511 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
5512 | tmp) | |
5513 | n_ssids++; | |
5514 | ||
93b6aa69 | 5515 | if (n_ssids > wiphy->max_sched_scan_ssids) |
807f8a8c LC |
5516 | return -EINVAL; |
5517 | ||
ea73cbce JB |
5518 | /* |
5519 | * First, count the number of 'real' matchsets. Due to an issue with | |
5520 | * the old implementation, matchsets containing only the RSSI attribute | |
5521 | * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default' | |
5522 | * RSSI for all matchsets, rather than their own matchset for reporting | |
5523 | * all APs with a strong RSSI. This is needed to be compatible with | |
5524 | * older userspace that treated a matchset with only the RSSI as the | |
5525 | * global RSSI for all other matchsets - if there are other matchsets. | |
5526 | */ | |
5527 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
a1f1c21c LC |
5528 | nla_for_each_nested(attr, |
5529 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
ea73cbce JB |
5530 | tmp) { |
5531 | struct nlattr *rssi; | |
5532 | ||
5533 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
5534 | nla_data(attr), nla_len(attr), | |
5535 | nl80211_match_policy); | |
5536 | if (err) | |
5537 | return err; | |
5538 | /* add other standalone attributes here */ | |
5539 | if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { | |
5540 | n_match_sets++; | |
5541 | continue; | |
5542 | } | |
5543 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
5544 | if (rssi) | |
5545 | default_match_rssi = nla_get_s32(rssi); | |
5546 | } | |
5547 | } | |
5548 | ||
5549 | /* However, if there's no other matchset, add the RSSI one */ | |
5550 | if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF) | |
5551 | n_match_sets = 1; | |
a1f1c21c LC |
5552 | |
5553 | if (n_match_sets > wiphy->max_match_sets) | |
5554 | return -EINVAL; | |
5555 | ||
807f8a8c LC |
5556 | if (info->attrs[NL80211_ATTR_IE]) |
5557 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5558 | else | |
5559 | ie_len = 0; | |
5560 | ||
5a865bad | 5561 | if (ie_len > wiphy->max_sched_scan_ie_len) |
807f8a8c LC |
5562 | return -EINVAL; |
5563 | ||
c10841ca LC |
5564 | if (rdev->sched_scan_req) { |
5565 | err = -EINPROGRESS; | |
5566 | goto out; | |
5567 | } | |
5568 | ||
807f8a8c | 5569 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 5570 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 5571 | + sizeof(*request->match_sets) * n_match_sets |
a2cd43c5 | 5572 | + sizeof(*request->channels) * n_channels |
807f8a8c | 5573 | + ie_len, GFP_KERNEL); |
c10841ca LC |
5574 | if (!request) { |
5575 | err = -ENOMEM; | |
5576 | goto out; | |
5577 | } | |
807f8a8c LC |
5578 | |
5579 | if (n_ssids) | |
5580 | request->ssids = (void *)&request->channels[n_channels]; | |
5581 | request->n_ssids = n_ssids; | |
5582 | if (ie_len) { | |
5583 | if (request->ssids) | |
5584 | request->ie = (void *)(request->ssids + n_ssids); | |
5585 | else | |
5586 | request->ie = (void *)(request->channels + n_channels); | |
5587 | } | |
5588 | ||
a1f1c21c LC |
5589 | if (n_match_sets) { |
5590 | if (request->ie) | |
5591 | request->match_sets = (void *)(request->ie + ie_len); | |
5592 | else if (request->ssids) | |
5593 | request->match_sets = | |
5594 | (void *)(request->ssids + n_ssids); | |
5595 | else | |
5596 | request->match_sets = | |
5597 | (void *)(request->channels + n_channels); | |
5598 | } | |
5599 | request->n_match_sets = n_match_sets; | |
5600 | ||
807f8a8c LC |
5601 | i = 0; |
5602 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
5603 | /* user specified, bail out if channel not found */ | |
5604 | nla_for_each_nested(attr, | |
5605 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], | |
5606 | tmp) { | |
5607 | struct ieee80211_channel *chan; | |
5608 | ||
5609 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
5610 | ||
5611 | if (!chan) { | |
5612 | err = -EINVAL; | |
5613 | goto out_free; | |
5614 | } | |
5615 | ||
5616 | /* ignore disabled channels */ | |
5617 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5618 | continue; | |
5619 | ||
5620 | request->channels[i] = chan; | |
5621 | i++; | |
5622 | } | |
5623 | } else { | |
5624 | /* all channels */ | |
5625 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
5626 | int j; | |
5627 | if (!wiphy->bands[band]) | |
5628 | continue; | |
5629 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
5630 | struct ieee80211_channel *chan; | |
5631 | ||
5632 | chan = &wiphy->bands[band]->channels[j]; | |
5633 | ||
5634 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5635 | continue; | |
5636 | ||
5637 | request->channels[i] = chan; | |
5638 | i++; | |
5639 | } | |
5640 | } | |
5641 | } | |
5642 | ||
5643 | if (!i) { | |
5644 | err = -EINVAL; | |
5645 | goto out_free; | |
5646 | } | |
5647 | ||
5648 | request->n_channels = i; | |
5649 | ||
5650 | i = 0; | |
5651 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
5652 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], | |
5653 | tmp) { | |
57a27e1d | 5654 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
5655 | err = -EINVAL; |
5656 | goto out_free; | |
5657 | } | |
57a27e1d | 5658 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
5659 | memcpy(request->ssids[i].ssid, nla_data(attr), |
5660 | nla_len(attr)); | |
807f8a8c LC |
5661 | i++; |
5662 | } | |
5663 | } | |
5664 | ||
a1f1c21c LC |
5665 | i = 0; |
5666 | if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { | |
5667 | nla_for_each_nested(attr, | |
5668 | info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], | |
5669 | tmp) { | |
88e920b4 | 5670 | struct nlattr *ssid, *rssi; |
a1f1c21c | 5671 | |
ae811e21 JB |
5672 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, |
5673 | nla_data(attr), nla_len(attr), | |
5674 | nl80211_match_policy); | |
5675 | if (err) | |
5676 | goto out_free; | |
4a4ab0d7 | 5677 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
a1f1c21c | 5678 | if (ssid) { |
ea73cbce JB |
5679 | if (WARN_ON(i >= n_match_sets)) { |
5680 | /* this indicates a programming error, | |
5681 | * the loop above should have verified | |
5682 | * things properly | |
5683 | */ | |
5684 | err = -EINVAL; | |
5685 | goto out_free; | |
5686 | } | |
5687 | ||
a1f1c21c LC |
5688 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { |
5689 | err = -EINVAL; | |
5690 | goto out_free; | |
5691 | } | |
5692 | memcpy(request->match_sets[i].ssid.ssid, | |
5693 | nla_data(ssid), nla_len(ssid)); | |
5694 | request->match_sets[i].ssid.ssid_len = | |
5695 | nla_len(ssid); | |
ea73cbce JB |
5696 | /* special attribute - old implemenation w/a */ |
5697 | request->match_sets[i].rssi_thold = | |
5698 | default_match_rssi; | |
5699 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
5700 | if (rssi) | |
5701 | request->match_sets[i].rssi_thold = | |
5702 | nla_get_s32(rssi); | |
a1f1c21c LC |
5703 | } |
5704 | i++; | |
5705 | } | |
ea73cbce JB |
5706 | |
5707 | /* there was no other matchset, so the RSSI one is alone */ | |
5708 | if (i == 0) | |
5709 | request->match_sets[0].rssi_thold = default_match_rssi; | |
5710 | ||
5711 | request->min_rssi_thold = INT_MAX; | |
5712 | for (i = 0; i < n_match_sets; i++) | |
5713 | request->min_rssi_thold = | |
5714 | min(request->match_sets[i].rssi_thold, | |
5715 | request->min_rssi_thold); | |
5716 | } else { | |
5717 | request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF; | |
a1f1c21c LC |
5718 | } |
5719 | ||
9900e484 JB |
5720 | if (ie_len) { |
5721 | request->ie_len = ie_len; | |
807f8a8c LC |
5722 | memcpy((void *)request->ie, |
5723 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
5724 | request->ie_len); | |
5725 | } | |
5726 | ||
46856bbf | 5727 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
5728 | request->flags = nla_get_u32( |
5729 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
00c3a6ed JB |
5730 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5731 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
46856bbf SL |
5732 | err = -EOPNOTSUPP; |
5733 | goto out_free; | |
5734 | } | |
5735 | } | |
ed473771 | 5736 | |
807f8a8c LC |
5737 | request->dev = dev; |
5738 | request->wiphy = &rdev->wiphy; | |
bbe6ad6d | 5739 | request->interval = interval; |
15d6030b | 5740 | request->scan_start = jiffies; |
807f8a8c | 5741 | |
e35e4d28 | 5742 | err = rdev_sched_scan_start(rdev, dev, request); |
807f8a8c LC |
5743 | if (!err) { |
5744 | rdev->sched_scan_req = request; | |
5745 | nl80211_send_sched_scan(rdev, dev, | |
5746 | NL80211_CMD_START_SCHED_SCAN); | |
5747 | goto out; | |
5748 | } | |
5749 | ||
5750 | out_free: | |
5751 | kfree(request); | |
5752 | out: | |
5753 | return err; | |
5754 | } | |
5755 | ||
5756 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
5757 | struct genl_info *info) | |
5758 | { | |
5759 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5760 | ||
5761 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
5762 | !rdev->ops->sched_scan_stop) | |
5763 | return -EOPNOTSUPP; | |
5764 | ||
5fe231e8 | 5765 | return __cfg80211_stop_sched_scan(rdev, false); |
807f8a8c LC |
5766 | } |
5767 | ||
04f39047 SW |
5768 | static int nl80211_start_radar_detection(struct sk_buff *skb, |
5769 | struct genl_info *info) | |
5770 | { | |
5771 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5772 | struct net_device *dev = info->user_ptr[1]; | |
5773 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
5774 | struct cfg80211_chan_def chandef; | |
55f7435c | 5775 | enum nl80211_dfs_regions dfs_region; |
31559f35 | 5776 | unsigned int cac_time_ms; |
04f39047 SW |
5777 | int err; |
5778 | ||
55f7435c LR |
5779 | dfs_region = reg_get_dfs_region(wdev->wiphy); |
5780 | if (dfs_region == NL80211_DFS_UNSET) | |
5781 | return -EINVAL; | |
5782 | ||
04f39047 SW |
5783 | err = nl80211_parse_chandef(rdev, info, &chandef); |
5784 | if (err) | |
5785 | return err; | |
5786 | ||
ff311bc1 SW |
5787 | if (netif_carrier_ok(dev)) |
5788 | return -EBUSY; | |
5789 | ||
04f39047 SW |
5790 | if (wdev->cac_started) |
5791 | return -EBUSY; | |
5792 | ||
2beb6dab LC |
5793 | err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, |
5794 | NL80211_IFTYPE_UNSPECIFIED); | |
04f39047 SW |
5795 | if (err < 0) |
5796 | return err; | |
5797 | ||
5798 | if (err == 0) | |
5799 | return -EINVAL; | |
5800 | ||
fe7c3a1f | 5801 | if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef)) |
04f39047 SW |
5802 | return -EINVAL; |
5803 | ||
5804 | if (!rdev->ops->start_radar_detection) | |
5805 | return -EOPNOTSUPP; | |
5806 | ||
31559f35 JD |
5807 | cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef); |
5808 | if (WARN_ON(!cac_time_ms)) | |
5809 | cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; | |
5810 | ||
5811 | err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef, | |
5812 | cac_time_ms); | |
04f39047 | 5813 | if (!err) { |
9e0e2961 | 5814 | wdev->chandef = chandef; |
04f39047 SW |
5815 | wdev->cac_started = true; |
5816 | wdev->cac_start_time = jiffies; | |
31559f35 | 5817 | wdev->cac_time_ms = cac_time_ms; |
04f39047 | 5818 | } |
04f39047 SW |
5819 | return err; |
5820 | } | |
5821 | ||
16ef1fe2 SW |
5822 | static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) |
5823 | { | |
5824 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5825 | struct net_device *dev = info->user_ptr[1]; | |
5826 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
5827 | struct cfg80211_csa_settings params; | |
5828 | /* csa_attrs is defined static to avoid waste of stack size - this | |
5829 | * function is called under RTNL lock, so this should not be a problem. | |
5830 | */ | |
5831 | static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1]; | |
5832 | u8 radar_detect_width = 0; | |
5833 | int err; | |
ee4bc9e7 | 5834 | bool need_new_beacon = false; |
16ef1fe2 SW |
5835 | |
5836 | if (!rdev->ops->channel_switch || | |
5837 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) | |
5838 | return -EOPNOTSUPP; | |
5839 | ||
ee4bc9e7 SW |
5840 | switch (dev->ieee80211_ptr->iftype) { |
5841 | case NL80211_IFTYPE_AP: | |
5842 | case NL80211_IFTYPE_P2P_GO: | |
5843 | need_new_beacon = true; | |
5844 | ||
5845 | /* useless if AP is not running */ | |
5846 | if (!wdev->beacon_interval) | |
1ff79dfa | 5847 | return -ENOTCONN; |
ee4bc9e7 SW |
5848 | break; |
5849 | case NL80211_IFTYPE_ADHOC: | |
1ff79dfa JB |
5850 | if (!wdev->ssid_len) |
5851 | return -ENOTCONN; | |
5852 | break; | |
c6da674a | 5853 | case NL80211_IFTYPE_MESH_POINT: |
1ff79dfa JB |
5854 | if (!wdev->mesh_id_len) |
5855 | return -ENOTCONN; | |
ee4bc9e7 SW |
5856 | break; |
5857 | default: | |
16ef1fe2 | 5858 | return -EOPNOTSUPP; |
ee4bc9e7 | 5859 | } |
16ef1fe2 SW |
5860 | |
5861 | memset(¶ms, 0, sizeof(params)); | |
5862 | ||
5863 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
5864 | !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]) | |
5865 | return -EINVAL; | |
5866 | ||
5867 | /* only important for AP, IBSS and mesh create IEs internally */ | |
d0a361a5 | 5868 | if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES]) |
16ef1fe2 SW |
5869 | return -EINVAL; |
5870 | ||
5871 | params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]); | |
5872 | ||
ee4bc9e7 SW |
5873 | if (!need_new_beacon) |
5874 | goto skip_beacons; | |
5875 | ||
16ef1fe2 SW |
5876 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after); |
5877 | if (err) | |
5878 | return err; | |
5879 | ||
5880 | err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX, | |
5881 | info->attrs[NL80211_ATTR_CSA_IES], | |
5882 | nl80211_policy); | |
5883 | if (err) | |
5884 | return err; | |
5885 | ||
5886 | err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa); | |
5887 | if (err) | |
5888 | return err; | |
5889 | ||
5890 | if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]) | |
5891 | return -EINVAL; | |
5892 | ||
5893 | params.counter_offset_beacon = | |
5894 | nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); | |
5895 | if (params.counter_offset_beacon >= params.beacon_csa.tail_len) | |
5896 | return -EINVAL; | |
5897 | ||
5898 | /* sanity check - counters should be the same */ | |
5899 | if (params.beacon_csa.tail[params.counter_offset_beacon] != | |
5900 | params.count) | |
5901 | return -EINVAL; | |
5902 | ||
5903 | if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) { | |
5904 | params.counter_offset_presp = | |
5905 | nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); | |
5906 | if (params.counter_offset_presp >= | |
5907 | params.beacon_csa.probe_resp_len) | |
5908 | return -EINVAL; | |
5909 | ||
5910 | if (params.beacon_csa.probe_resp[params.counter_offset_presp] != | |
5911 | params.count) | |
5912 | return -EINVAL; | |
5913 | } | |
5914 | ||
ee4bc9e7 | 5915 | skip_beacons: |
16ef1fe2 SW |
5916 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
5917 | if (err) | |
5918 | return err; | |
5919 | ||
174e0cd2 IP |
5920 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef, |
5921 | wdev->iftype)) | |
16ef1fe2 SW |
5922 | return -EINVAL; |
5923 | ||
2beb6dab LC |
5924 | err = cfg80211_chandef_dfs_required(wdev->wiphy, |
5925 | ¶ms.chandef, | |
5926 | wdev->iftype); | |
5927 | if (err < 0) | |
5928 | return err; | |
5929 | ||
5930 | if (err > 0) { | |
5931 | radar_detect_width = BIT(params.chandef.width); | |
5932 | params.radar_required = true; | |
16ef1fe2 SW |
5933 | } |
5934 | ||
73de86a3 LC |
5935 | /* TODO: I left this here for now. With channel switch, the |
5936 | * verification is a bit more complicated, because we only do | |
5937 | * it later when the channel switch really happens. | |
5938 | */ | |
16ef1fe2 SW |
5939 | err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, |
5940 | params.chandef.chan, | |
5941 | CHAN_MODE_SHARED, | |
5942 | radar_detect_width); | |
5943 | if (err) | |
5944 | return err; | |
5945 | ||
5946 | if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) | |
5947 | params.block_tx = true; | |
5948 | ||
c56589ed SW |
5949 | wdev_lock(wdev); |
5950 | err = rdev_channel_switch(rdev, dev, ¶ms); | |
5951 | wdev_unlock(wdev); | |
5952 | ||
5953 | return err; | |
16ef1fe2 SW |
5954 | } |
5955 | ||
9720bb3a JB |
5956 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
5957 | u32 seq, int flags, | |
2a519311 | 5958 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
5959 | struct wireless_dev *wdev, |
5960 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 5961 | { |
48ab905d | 5962 | struct cfg80211_bss *res = &intbss->pub; |
9caf0364 | 5963 | const struct cfg80211_bss_ies *ies; |
2a519311 JB |
5964 | void *hdr; |
5965 | struct nlattr *bss; | |
8cef2c9d | 5966 | bool tsf = false; |
48ab905d JB |
5967 | |
5968 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 5969 | |
15e47304 | 5970 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
2a519311 JB |
5971 | NL80211_CMD_NEW_SCAN_RESULTS); |
5972 | if (!hdr) | |
5973 | return -1; | |
5974 | ||
9720bb3a JB |
5975 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
5976 | ||
97990a06 JB |
5977 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation)) |
5978 | goto nla_put_failure; | |
5979 | if (wdev->netdev && | |
9360ffd1 DM |
5980 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) |
5981 | goto nla_put_failure; | |
97990a06 JB |
5982 | if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
5983 | goto nla_put_failure; | |
2a519311 JB |
5984 | |
5985 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
5986 | if (!bss) | |
5987 | goto nla_put_failure; | |
9360ffd1 | 5988 | if ((!is_zero_ether_addr(res->bssid) && |
9caf0364 | 5989 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) |
9360ffd1 | 5990 | goto nla_put_failure; |
9caf0364 JB |
5991 | |
5992 | rcu_read_lock(); | |
5993 | ies = rcu_dereference(res->ies); | |
8cef2c9d JB |
5994 | if (ies) { |
5995 | if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
5996 | goto fail_unlock_rcu; | |
5997 | tsf = true; | |
5998 | if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
5999 | ies->len, ies->data)) | |
6000 | goto fail_unlock_rcu; | |
9caf0364 JB |
6001 | } |
6002 | ies = rcu_dereference(res->beacon_ies); | |
8cef2c9d JB |
6003 | if (ies) { |
6004 | if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
6005 | goto fail_unlock_rcu; | |
6006 | if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, | |
6007 | ies->len, ies->data)) | |
6008 | goto fail_unlock_rcu; | |
9caf0364 JB |
6009 | } |
6010 | rcu_read_unlock(); | |
6011 | ||
9360ffd1 DM |
6012 | if (res->beacon_interval && |
6013 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
6014 | goto nla_put_failure; | |
6015 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
6016 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
dcd6eac1 | 6017 | nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) || |
9360ffd1 DM |
6018 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, |
6019 | jiffies_to_msecs(jiffies - intbss->ts))) | |
6020 | goto nla_put_failure; | |
2a519311 | 6021 | |
77965c97 | 6022 | switch (rdev->wiphy.signal_type) { |
2a519311 | 6023 | case CFG80211_SIGNAL_TYPE_MBM: |
9360ffd1 DM |
6024 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
6025 | goto nla_put_failure; | |
2a519311 JB |
6026 | break; |
6027 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
9360ffd1 DM |
6028 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
6029 | goto nla_put_failure; | |
2a519311 JB |
6030 | break; |
6031 | default: | |
6032 | break; | |
6033 | } | |
6034 | ||
48ab905d | 6035 | switch (wdev->iftype) { |
074ac8df | 6036 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d | 6037 | case NL80211_IFTYPE_STATION: |
9360ffd1 DM |
6038 | if (intbss == wdev->current_bss && |
6039 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6040 | NL80211_BSS_STATUS_ASSOCIATED)) | |
6041 | goto nla_put_failure; | |
48ab905d JB |
6042 | break; |
6043 | case NL80211_IFTYPE_ADHOC: | |
9360ffd1 DM |
6044 | if (intbss == wdev->current_bss && |
6045 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6046 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
6047 | goto nla_put_failure; | |
48ab905d JB |
6048 | break; |
6049 | default: | |
6050 | break; | |
6051 | } | |
6052 | ||
2a519311 JB |
6053 | nla_nest_end(msg, bss); |
6054 | ||
6055 | return genlmsg_end(msg, hdr); | |
6056 | ||
8cef2c9d JB |
6057 | fail_unlock_rcu: |
6058 | rcu_read_unlock(); | |
2a519311 JB |
6059 | nla_put_failure: |
6060 | genlmsg_cancel(msg, hdr); | |
6061 | return -EMSGSIZE; | |
6062 | } | |
6063 | ||
97990a06 | 6064 | static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb) |
2a519311 | 6065 | { |
48ab905d | 6066 | struct cfg80211_registered_device *rdev; |
2a519311 | 6067 | struct cfg80211_internal_bss *scan; |
48ab905d | 6068 | struct wireless_dev *wdev; |
97990a06 | 6069 | int start = cb->args[2], idx = 0; |
2a519311 JB |
6070 | int err; |
6071 | ||
97990a06 | 6072 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
6073 | if (err) |
6074 | return err; | |
2a519311 | 6075 | |
48ab905d JB |
6076 | wdev_lock(wdev); |
6077 | spin_lock_bh(&rdev->bss_lock); | |
6078 | cfg80211_bss_expire(rdev); | |
6079 | ||
9720bb3a JB |
6080 | cb->seq = rdev->bss_generation; |
6081 | ||
48ab905d | 6082 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
6083 | if (++idx <= start) |
6084 | continue; | |
9720bb3a | 6085 | if (nl80211_send_bss(skb, cb, |
2a519311 | 6086 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 6087 | rdev, wdev, scan) < 0) { |
2a519311 | 6088 | idx--; |
67748893 | 6089 | break; |
2a519311 JB |
6090 | } |
6091 | } | |
6092 | ||
48ab905d JB |
6093 | spin_unlock_bh(&rdev->bss_lock); |
6094 | wdev_unlock(wdev); | |
2a519311 | 6095 | |
97990a06 JB |
6096 | cb->args[2] = idx; |
6097 | nl80211_finish_wdev_dump(rdev); | |
2a519311 | 6098 | |
67748893 | 6099 | return skb->len; |
2a519311 JB |
6100 | } |
6101 | ||
15e47304 | 6102 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
61fa713c HS |
6103 | int flags, struct net_device *dev, |
6104 | struct survey_info *survey) | |
6105 | { | |
6106 | void *hdr; | |
6107 | struct nlattr *infoattr; | |
6108 | ||
15e47304 | 6109 | hdr = nl80211hdr_put(msg, portid, seq, flags, |
61fa713c HS |
6110 | NL80211_CMD_NEW_SURVEY_RESULTS); |
6111 | if (!hdr) | |
6112 | return -ENOMEM; | |
6113 | ||
9360ffd1 DM |
6114 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
6115 | goto nla_put_failure; | |
61fa713c HS |
6116 | |
6117 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
6118 | if (!infoattr) | |
6119 | goto nla_put_failure; | |
6120 | ||
9360ffd1 DM |
6121 | if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, |
6122 | survey->channel->center_freq)) | |
6123 | goto nla_put_failure; | |
6124 | ||
6125 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
6126 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
6127 | goto nla_put_failure; | |
6128 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
6129 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
6130 | goto nla_put_failure; | |
6131 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) && | |
6132 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
6133 | survey->channel_time)) | |
6134 | goto nla_put_failure; | |
6135 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) && | |
6136 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
6137 | survey->channel_time_busy)) | |
6138 | goto nla_put_failure; | |
6139 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) && | |
6140 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
6141 | survey->channel_time_ext_busy)) | |
6142 | goto nla_put_failure; | |
6143 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) && | |
6144 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
6145 | survey->channel_time_rx)) | |
6146 | goto nla_put_failure; | |
6147 | if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) && | |
6148 | nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
6149 | survey->channel_time_tx)) | |
6150 | goto nla_put_failure; | |
61fa713c HS |
6151 | |
6152 | nla_nest_end(msg, infoattr); | |
6153 | ||
6154 | return genlmsg_end(msg, hdr); | |
6155 | ||
6156 | nla_put_failure: | |
6157 | genlmsg_cancel(msg, hdr); | |
6158 | return -EMSGSIZE; | |
6159 | } | |
6160 | ||
6161 | static int nl80211_dump_survey(struct sk_buff *skb, | |
6162 | struct netlink_callback *cb) | |
6163 | { | |
6164 | struct survey_info survey; | |
1b8ec87a | 6165 | struct cfg80211_registered_device *rdev; |
97990a06 JB |
6166 | struct wireless_dev *wdev; |
6167 | int survey_idx = cb->args[2]; | |
61fa713c HS |
6168 | int res; |
6169 | ||
1b8ec87a | 6170 | res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
6171 | if (res) |
6172 | return res; | |
61fa713c | 6173 | |
97990a06 JB |
6174 | if (!wdev->netdev) { |
6175 | res = -EINVAL; | |
6176 | goto out_err; | |
6177 | } | |
6178 | ||
1b8ec87a | 6179 | if (!rdev->ops->dump_survey) { |
61fa713c HS |
6180 | res = -EOPNOTSUPP; |
6181 | goto out_err; | |
6182 | } | |
6183 | ||
6184 | while (1) { | |
180cdc79 LR |
6185 | struct ieee80211_channel *chan; |
6186 | ||
1b8ec87a | 6187 | res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); |
61fa713c HS |
6188 | if (res == -ENOENT) |
6189 | break; | |
6190 | if (res) | |
6191 | goto out_err; | |
6192 | ||
180cdc79 LR |
6193 | /* Survey without a channel doesn't make sense */ |
6194 | if (!survey.channel) { | |
6195 | res = -EINVAL; | |
6196 | goto out; | |
6197 | } | |
6198 | ||
1b8ec87a | 6199 | chan = ieee80211_get_channel(&rdev->wiphy, |
180cdc79 LR |
6200 | survey.channel->center_freq); |
6201 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { | |
6202 | survey_idx++; | |
6203 | continue; | |
6204 | } | |
6205 | ||
61fa713c | 6206 | if (nl80211_send_survey(skb, |
15e47304 | 6207 | NETLINK_CB(cb->skb).portid, |
61fa713c | 6208 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
97990a06 | 6209 | wdev->netdev, &survey) < 0) |
61fa713c HS |
6210 | goto out; |
6211 | survey_idx++; | |
6212 | } | |
6213 | ||
6214 | out: | |
97990a06 | 6215 | cb->args[2] = survey_idx; |
61fa713c HS |
6216 | res = skb->len; |
6217 | out_err: | |
1b8ec87a | 6218 | nl80211_finish_wdev_dump(rdev); |
61fa713c HS |
6219 | return res; |
6220 | } | |
6221 | ||
b23aa676 SO |
6222 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
6223 | { | |
6224 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
6225 | NL80211_WPA_VERSION_2)); | |
6226 | } | |
6227 | ||
636a5d36 JM |
6228 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
6229 | { | |
4c476991 JB |
6230 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6231 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 6232 | struct ieee80211_channel *chan; |
e39e5b5e JM |
6233 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
6234 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
19957bb3 | 6235 | enum nl80211_auth_type auth_type; |
fffd0934 | 6236 | struct key_parse key; |
d5cdfacb | 6237 | bool local_state_change; |
636a5d36 | 6238 | |
f4a11bb0 JB |
6239 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6240 | return -EINVAL; | |
6241 | ||
6242 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6243 | return -EINVAL; | |
6244 | ||
1778092e JM |
6245 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
6246 | return -EINVAL; | |
6247 | ||
19957bb3 JB |
6248 | if (!info->attrs[NL80211_ATTR_SSID]) |
6249 | return -EINVAL; | |
6250 | ||
6251 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
6252 | return -EINVAL; | |
6253 | ||
fffd0934 JB |
6254 | err = nl80211_parse_key(info, &key); |
6255 | if (err) | |
6256 | return err; | |
6257 | ||
6258 | if (key.idx >= 0) { | |
e31b8213 JB |
6259 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
6260 | return -EINVAL; | |
fffd0934 JB |
6261 | if (!key.p.key || !key.p.key_len) |
6262 | return -EINVAL; | |
6263 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
6264 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
6265 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
6266 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
6267 | return -EINVAL; | |
6268 | if (key.idx > 4) | |
6269 | return -EINVAL; | |
6270 | } else { | |
6271 | key.p.key_len = 0; | |
6272 | key.p.key = NULL; | |
6273 | } | |
6274 | ||
afea0b7a JB |
6275 | if (key.idx >= 0) { |
6276 | int i; | |
6277 | bool ok = false; | |
6278 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
6279 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
6280 | ok = true; | |
6281 | break; | |
6282 | } | |
6283 | } | |
4c476991 JB |
6284 | if (!ok) |
6285 | return -EINVAL; | |
afea0b7a JB |
6286 | } |
6287 | ||
4c476991 JB |
6288 | if (!rdev->ops->auth) |
6289 | return -EOPNOTSUPP; | |
636a5d36 | 6290 | |
074ac8df | 6291 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6292 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6293 | return -EOPNOTSUPP; | |
eec60b03 | 6294 | |
19957bb3 | 6295 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
664834de JM |
6296 | chan = nl80211_get_valid_chan(&rdev->wiphy, |
6297 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
6298 | if (!chan) | |
4c476991 | 6299 | return -EINVAL; |
636a5d36 | 6300 | |
19957bb3 JB |
6301 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6302 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
6303 | |
6304 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
6305 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6306 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
6307 | } |
6308 | ||
19957bb3 | 6309 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
e39e5b5e | 6310 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
4c476991 | 6311 | return -EINVAL; |
636a5d36 | 6312 | |
e39e5b5e JM |
6313 | if (auth_type == NL80211_AUTHTYPE_SAE && |
6314 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
6315 | return -EINVAL; | |
6316 | ||
6317 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
6318 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
6319 | return -EINVAL; | |
6320 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
6321 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
6322 | /* need to include at least Auth Transaction and Status Code */ | |
6323 | if (sae_data_len < 4) | |
6324 | return -EINVAL; | |
6325 | } | |
6326 | ||
d5cdfacb JM |
6327 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
6328 | ||
95de817b JB |
6329 | /* |
6330 | * Since we no longer track auth state, ignore | |
6331 | * requests to only change local state. | |
6332 | */ | |
6333 | if (local_state_change) | |
6334 | return 0; | |
6335 | ||
91bf9b26 JB |
6336 | wdev_lock(dev->ieee80211_ptr); |
6337 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
6338 | ssid, ssid_len, ie, ie_len, | |
6339 | key.p.key, key.p.key_len, key.idx, | |
6340 | sae_data, sae_data_len); | |
6341 | wdev_unlock(dev->ieee80211_ptr); | |
6342 | return err; | |
636a5d36 JM |
6343 | } |
6344 | ||
c0692b8f JB |
6345 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
6346 | struct genl_info *info, | |
3dc27d25 JB |
6347 | struct cfg80211_crypto_settings *settings, |
6348 | int cipher_limit) | |
b23aa676 | 6349 | { |
c0b2bbd8 JB |
6350 | memset(settings, 0, sizeof(*settings)); |
6351 | ||
b23aa676 SO |
6352 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
6353 | ||
c0692b8f JB |
6354 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
6355 | u16 proto; | |
6356 | proto = nla_get_u16( | |
6357 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
6358 | settings->control_port_ethertype = cpu_to_be16(proto); | |
6359 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
6360 | proto != ETH_P_PAE) | |
6361 | return -EINVAL; | |
6362 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
6363 | settings->control_port_no_encrypt = true; | |
6364 | } else | |
6365 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
6366 | ||
b23aa676 SO |
6367 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
6368 | void *data; | |
6369 | int len, i; | |
6370 | ||
6371 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
6372 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
6373 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
6374 | ||
6375 | if (len % sizeof(u32)) | |
6376 | return -EINVAL; | |
6377 | ||
3dc27d25 | 6378 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
6379 | return -EINVAL; |
6380 | ||
6381 | memcpy(settings->ciphers_pairwise, data, len); | |
6382 | ||
6383 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
6384 | if (!cfg80211_supported_cipher_suite( |
6385 | &rdev->wiphy, | |
b23aa676 SO |
6386 | settings->ciphers_pairwise[i])) |
6387 | return -EINVAL; | |
6388 | } | |
6389 | ||
6390 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
6391 | settings->cipher_group = | |
6392 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
6393 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
6394 | settings->cipher_group)) | |
b23aa676 SO |
6395 | return -EINVAL; |
6396 | } | |
6397 | ||
6398 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
6399 | settings->wpa_versions = | |
6400 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
6401 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
6402 | return -EINVAL; | |
6403 | } | |
6404 | ||
6405 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
6406 | void *data; | |
6d30240e | 6407 | int len; |
b23aa676 SO |
6408 | |
6409 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
6410 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
6411 | settings->n_akm_suites = len / sizeof(u32); | |
6412 | ||
6413 | if (len % sizeof(u32)) | |
6414 | return -EINVAL; | |
6415 | ||
1b9ca027 JM |
6416 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
6417 | return -EINVAL; | |
6418 | ||
b23aa676 | 6419 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
6420 | } |
6421 | ||
6422 | return 0; | |
6423 | } | |
6424 | ||
636a5d36 JM |
6425 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
6426 | { | |
4c476991 JB |
6427 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6428 | struct net_device *dev = info->user_ptr[1]; | |
f444de05 | 6429 | struct ieee80211_channel *chan; |
f62fab73 JB |
6430 | struct cfg80211_assoc_request req = {}; |
6431 | const u8 *bssid, *ssid; | |
6432 | int err, ssid_len = 0; | |
636a5d36 | 6433 | |
f4a11bb0 JB |
6434 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6435 | return -EINVAL; | |
6436 | ||
6437 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
6438 | !info->attrs[NL80211_ATTR_SSID] || |
6439 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
6440 | return -EINVAL; |
6441 | ||
4c476991 JB |
6442 | if (!rdev->ops->assoc) |
6443 | return -EOPNOTSUPP; | |
636a5d36 | 6444 | |
074ac8df | 6445 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6446 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6447 | return -EOPNOTSUPP; | |
eec60b03 | 6448 | |
19957bb3 | 6449 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 6450 | |
664834de JM |
6451 | chan = nl80211_get_valid_chan(&rdev->wiphy, |
6452 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
6453 | if (!chan) | |
4c476991 | 6454 | return -EINVAL; |
636a5d36 | 6455 | |
19957bb3 JB |
6456 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6457 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
6458 | |
6459 | if (info->attrs[NL80211_ATTR_IE]) { | |
f62fab73 JB |
6460 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6461 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
6462 | } |
6463 | ||
dc6382ce | 6464 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 6465 | enum nl80211_mfp mfp = |
dc6382ce | 6466 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 6467 | if (mfp == NL80211_MFP_REQUIRED) |
f62fab73 | 6468 | req.use_mfp = true; |
4c476991 JB |
6469 | else if (mfp != NL80211_MFP_NO) |
6470 | return -EINVAL; | |
dc6382ce JM |
6471 | } |
6472 | ||
3e5d7649 | 6473 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
f62fab73 | 6474 | req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); |
3e5d7649 | 6475 | |
7e7c8926 | 6476 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
f62fab73 | 6477 | req.flags |= ASSOC_REQ_DISABLE_HT; |
7e7c8926 BG |
6478 | |
6479 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
f62fab73 JB |
6480 | memcpy(&req.ht_capa_mask, |
6481 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
6482 | sizeof(req.ht_capa_mask)); | |
7e7c8926 BG |
6483 | |
6484 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
f62fab73 | 6485 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
7e7c8926 | 6486 | return -EINVAL; |
f62fab73 JB |
6487 | memcpy(&req.ht_capa, |
6488 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
6489 | sizeof(req.ht_capa)); | |
7e7c8926 BG |
6490 | } |
6491 | ||
ee2aca34 | 6492 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
f62fab73 | 6493 | req.flags |= ASSOC_REQ_DISABLE_VHT; |
ee2aca34 JB |
6494 | |
6495 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
f62fab73 JB |
6496 | memcpy(&req.vht_capa_mask, |
6497 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
6498 | sizeof(req.vht_capa_mask)); | |
ee2aca34 JB |
6499 | |
6500 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
f62fab73 | 6501 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
ee2aca34 | 6502 | return -EINVAL; |
f62fab73 JB |
6503 | memcpy(&req.vht_capa, |
6504 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
6505 | sizeof(req.vht_capa)); | |
ee2aca34 JB |
6506 | } |
6507 | ||
f62fab73 | 6508 | err = nl80211_crypto_settings(rdev, info, &req.crypto, 1); |
91bf9b26 JB |
6509 | if (!err) { |
6510 | wdev_lock(dev->ieee80211_ptr); | |
f62fab73 JB |
6511 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, |
6512 | ssid, ssid_len, &req); | |
91bf9b26 JB |
6513 | wdev_unlock(dev->ieee80211_ptr); |
6514 | } | |
636a5d36 | 6515 | |
636a5d36 JM |
6516 | return err; |
6517 | } | |
6518 | ||
6519 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
6520 | { | |
4c476991 JB |
6521 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6522 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 6523 | const u8 *ie = NULL, *bssid; |
91bf9b26 | 6524 | int ie_len = 0, err; |
19957bb3 | 6525 | u16 reason_code; |
d5cdfacb | 6526 | bool local_state_change; |
636a5d36 | 6527 | |
f4a11bb0 JB |
6528 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6529 | return -EINVAL; | |
6530 | ||
6531 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6532 | return -EINVAL; | |
6533 | ||
6534 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
6535 | return -EINVAL; | |
6536 | ||
4c476991 JB |
6537 | if (!rdev->ops->deauth) |
6538 | return -EOPNOTSUPP; | |
636a5d36 | 6539 | |
074ac8df | 6540 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6541 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6542 | return -EOPNOTSUPP; | |
eec60b03 | 6543 | |
19957bb3 | 6544 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 6545 | |
19957bb3 JB |
6546 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
6547 | if (reason_code == 0) { | |
f4a11bb0 | 6548 | /* Reason Code 0 is reserved */ |
4c476991 | 6549 | return -EINVAL; |
255e737e | 6550 | } |
636a5d36 JM |
6551 | |
6552 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
6553 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6554 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
6555 | } |
6556 | ||
d5cdfacb JM |
6557 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
6558 | ||
91bf9b26 JB |
6559 | wdev_lock(dev->ieee80211_ptr); |
6560 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
6561 | local_state_change); | |
6562 | wdev_unlock(dev->ieee80211_ptr); | |
6563 | return err; | |
636a5d36 JM |
6564 | } |
6565 | ||
6566 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
6567 | { | |
4c476991 JB |
6568 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6569 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 6570 | const u8 *ie = NULL, *bssid; |
91bf9b26 | 6571 | int ie_len = 0, err; |
19957bb3 | 6572 | u16 reason_code; |
d5cdfacb | 6573 | bool local_state_change; |
636a5d36 | 6574 | |
f4a11bb0 JB |
6575 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6576 | return -EINVAL; | |
6577 | ||
6578 | if (!info->attrs[NL80211_ATTR_MAC]) | |
6579 | return -EINVAL; | |
6580 | ||
6581 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
6582 | return -EINVAL; | |
6583 | ||
4c476991 JB |
6584 | if (!rdev->ops->disassoc) |
6585 | return -EOPNOTSUPP; | |
636a5d36 | 6586 | |
074ac8df | 6587 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
6588 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
6589 | return -EOPNOTSUPP; | |
eec60b03 | 6590 | |
19957bb3 | 6591 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 6592 | |
19957bb3 JB |
6593 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
6594 | if (reason_code == 0) { | |
f4a11bb0 | 6595 | /* Reason Code 0 is reserved */ |
4c476991 | 6596 | return -EINVAL; |
255e737e | 6597 | } |
636a5d36 JM |
6598 | |
6599 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
6600 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
6601 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
6602 | } |
6603 | ||
d5cdfacb JM |
6604 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
6605 | ||
91bf9b26 JB |
6606 | wdev_lock(dev->ieee80211_ptr); |
6607 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
6608 | local_state_change); | |
6609 | wdev_unlock(dev->ieee80211_ptr); | |
6610 | return err; | |
636a5d36 JM |
6611 | } |
6612 | ||
dd5b4cc7 FF |
6613 | static bool |
6614 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
6615 | int mcast_rate[IEEE80211_NUM_BANDS], | |
6616 | int rateval) | |
6617 | { | |
6618 | struct wiphy *wiphy = &rdev->wiphy; | |
6619 | bool found = false; | |
6620 | int band, i; | |
6621 | ||
6622 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
6623 | struct ieee80211_supported_band *sband; | |
6624 | ||
6625 | sband = wiphy->bands[band]; | |
6626 | if (!sband) | |
6627 | continue; | |
6628 | ||
6629 | for (i = 0; i < sband->n_bitrates; i++) { | |
6630 | if (sband->bitrates[i].bitrate == rateval) { | |
6631 | mcast_rate[band] = i + 1; | |
6632 | found = true; | |
6633 | break; | |
6634 | } | |
6635 | } | |
6636 | } | |
6637 | ||
6638 | return found; | |
6639 | } | |
6640 | ||
04a773ad JB |
6641 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
6642 | { | |
4c476991 JB |
6643 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6644 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
6645 | struct cfg80211_ibss_params ibss; |
6646 | struct wiphy *wiphy; | |
fffd0934 | 6647 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
6648 | int err; |
6649 | ||
8e30bc55 JB |
6650 | memset(&ibss, 0, sizeof(ibss)); |
6651 | ||
04a773ad JB |
6652 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
6653 | return -EINVAL; | |
6654 | ||
683b6d3b | 6655 | if (!info->attrs[NL80211_ATTR_SSID] || |
04a773ad JB |
6656 | !nla_len(info->attrs[NL80211_ATTR_SSID])) |
6657 | return -EINVAL; | |
6658 | ||
8e30bc55 JB |
6659 | ibss.beacon_interval = 100; |
6660 | ||
6661 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
6662 | ibss.beacon_interval = | |
6663 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
6664 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
6665 | return -EINVAL; | |
6666 | } | |
6667 | ||
4c476991 JB |
6668 | if (!rdev->ops->join_ibss) |
6669 | return -EOPNOTSUPP; | |
04a773ad | 6670 | |
4c476991 JB |
6671 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
6672 | return -EOPNOTSUPP; | |
04a773ad | 6673 | |
79c97e97 | 6674 | wiphy = &rdev->wiphy; |
04a773ad | 6675 | |
39193498 | 6676 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 6677 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
6678 | |
6679 | if (!is_valid_ether_addr(ibss.bssid)) | |
6680 | return -EINVAL; | |
6681 | } | |
04a773ad JB |
6682 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
6683 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
6684 | ||
6685 | if (info->attrs[NL80211_ATTR_IE]) { | |
6686 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
6687 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
6688 | } | |
6689 | ||
683b6d3b JB |
6690 | err = nl80211_parse_chandef(rdev, info, &ibss.chandef); |
6691 | if (err) | |
6692 | return err; | |
04a773ad | 6693 | |
174e0cd2 IP |
6694 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef, |
6695 | NL80211_IFTYPE_ADHOC)) | |
54858ee5 AS |
6696 | return -EINVAL; |
6697 | ||
2f301ab2 | 6698 | switch (ibss.chandef.width) { |
bf372645 SW |
6699 | case NL80211_CHAN_WIDTH_5: |
6700 | case NL80211_CHAN_WIDTH_10: | |
2f301ab2 SW |
6701 | case NL80211_CHAN_WIDTH_20_NOHT: |
6702 | break; | |
6703 | case NL80211_CHAN_WIDTH_20: | |
6704 | case NL80211_CHAN_WIDTH_40: | |
6705 | if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS) | |
6706 | break; | |
6707 | default: | |
c04d6150 | 6708 | return -EINVAL; |
2f301ab2 | 6709 | } |
db9c64cf | 6710 | |
04a773ad | 6711 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
6712 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
6713 | ||
fbd2c8dc TP |
6714 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
6715 | u8 *rates = | |
6716 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
6717 | int n_rates = | |
6718 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
6719 | struct ieee80211_supported_band *sband = | |
683b6d3b | 6720 | wiphy->bands[ibss.chandef.chan->band]; |
fbd2c8dc | 6721 | |
34850ab2 JB |
6722 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
6723 | &ibss.basic_rates); | |
6724 | if (err) | |
6725 | return err; | |
fbd2c8dc | 6726 | } |
dd5b4cc7 | 6727 | |
803768f5 SW |
6728 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
6729 | memcpy(&ibss.ht_capa_mask, | |
6730 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
6731 | sizeof(ibss.ht_capa_mask)); | |
6732 | ||
6733 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
6734 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
6735 | return -EINVAL; | |
6736 | memcpy(&ibss.ht_capa, | |
6737 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
6738 | sizeof(ibss.ht_capa)); | |
6739 | } | |
6740 | ||
dd5b4cc7 FF |
6741 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
6742 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
6743 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
6744 | return -EINVAL; | |
fbd2c8dc | 6745 | |
4c476991 | 6746 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
de7044ee SM |
6747 | bool no_ht = false; |
6748 | ||
4c476991 | 6749 | connkeys = nl80211_parse_connkeys(rdev, |
de7044ee SM |
6750 | info->attrs[NL80211_ATTR_KEYS], |
6751 | &no_ht); | |
4c476991 JB |
6752 | if (IS_ERR(connkeys)) |
6753 | return PTR_ERR(connkeys); | |
de7044ee | 6754 | |
3d9d1d66 JB |
6755 | if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && |
6756 | no_ht) { | |
de7044ee SM |
6757 | kfree(connkeys); |
6758 | return -EINVAL; | |
6759 | } | |
4c476991 | 6760 | } |
04a773ad | 6761 | |
267335d6 AQ |
6762 | ibss.control_port = |
6763 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
6764 | ||
5336fa88 SW |
6765 | ibss.userspace_handles_dfs = |
6766 | nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); | |
6767 | ||
4c476991 | 6768 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
6769 | if (err) |
6770 | kfree(connkeys); | |
04a773ad JB |
6771 | return err; |
6772 | } | |
6773 | ||
6774 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
6775 | { | |
4c476991 JB |
6776 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
6777 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 6778 | |
4c476991 JB |
6779 | if (!rdev->ops->leave_ibss) |
6780 | return -EOPNOTSUPP; | |
04a773ad | 6781 | |
4c476991 JB |
6782 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
6783 | return -EOPNOTSUPP; | |
04a773ad | 6784 | |
4c476991 | 6785 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
6786 | } |
6787 | ||
f4e583c8 AQ |
6788 | static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) |
6789 | { | |
6790 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6791 | struct net_device *dev = info->user_ptr[1]; | |
6792 | int mcast_rate[IEEE80211_NUM_BANDS]; | |
6793 | u32 nla_rate; | |
6794 | int err; | |
6795 | ||
6796 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
6797 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
6798 | return -EOPNOTSUPP; | |
6799 | ||
6800 | if (!rdev->ops->set_mcast_rate) | |
6801 | return -EOPNOTSUPP; | |
6802 | ||
6803 | memset(mcast_rate, 0, sizeof(mcast_rate)); | |
6804 | ||
6805 | if (!info->attrs[NL80211_ATTR_MCAST_RATE]) | |
6806 | return -EINVAL; | |
6807 | ||
6808 | nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); | |
6809 | if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) | |
6810 | return -EINVAL; | |
6811 | ||
6812 | err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate); | |
6813 | ||
6814 | return err; | |
6815 | } | |
6816 | ||
ad7e718c JB |
6817 | static struct sk_buff * |
6818 | __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev, | |
6819 | int approxlen, u32 portid, u32 seq, | |
6820 | enum nl80211_commands cmd, | |
567ffc35 JB |
6821 | enum nl80211_attrs attr, |
6822 | const struct nl80211_vendor_cmd_info *info, | |
6823 | gfp_t gfp) | |
ad7e718c JB |
6824 | { |
6825 | struct sk_buff *skb; | |
6826 | void *hdr; | |
6827 | struct nlattr *data; | |
6828 | ||
6829 | skb = nlmsg_new(approxlen + 100, gfp); | |
6830 | if (!skb) | |
6831 | return NULL; | |
6832 | ||
6833 | hdr = nl80211hdr_put(skb, portid, seq, 0, cmd); | |
6834 | if (!hdr) { | |
6835 | kfree_skb(skb); | |
6836 | return NULL; | |
6837 | } | |
6838 | ||
6839 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
6840 | goto nla_put_failure; | |
567ffc35 JB |
6841 | |
6842 | if (info) { | |
6843 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID, | |
6844 | info->vendor_id)) | |
6845 | goto nla_put_failure; | |
6846 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD, | |
6847 | info->subcmd)) | |
6848 | goto nla_put_failure; | |
6849 | } | |
6850 | ||
ad7e718c JB |
6851 | data = nla_nest_start(skb, attr); |
6852 | ||
6853 | ((void **)skb->cb)[0] = rdev; | |
6854 | ((void **)skb->cb)[1] = hdr; | |
6855 | ((void **)skb->cb)[2] = data; | |
6856 | ||
6857 | return skb; | |
6858 | ||
6859 | nla_put_failure: | |
6860 | kfree_skb(skb); | |
6861 | return NULL; | |
6862 | } | |
f4e583c8 | 6863 | |
e03ad6ea JB |
6864 | struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, |
6865 | enum nl80211_commands cmd, | |
6866 | enum nl80211_attrs attr, | |
6867 | int vendor_event_idx, | |
6868 | int approxlen, gfp_t gfp) | |
6869 | { | |
f26cbf40 | 6870 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
e03ad6ea JB |
6871 | const struct nl80211_vendor_cmd_info *info; |
6872 | ||
6873 | switch (cmd) { | |
6874 | case NL80211_CMD_TESTMODE: | |
6875 | if (WARN_ON(vendor_event_idx != -1)) | |
6876 | return NULL; | |
6877 | info = NULL; | |
6878 | break; | |
6879 | case NL80211_CMD_VENDOR: | |
6880 | if (WARN_ON(vendor_event_idx < 0 || | |
6881 | vendor_event_idx >= wiphy->n_vendor_events)) | |
6882 | return NULL; | |
6883 | info = &wiphy->vendor_events[vendor_event_idx]; | |
6884 | break; | |
6885 | default: | |
6886 | WARN_ON(1); | |
6887 | return NULL; | |
6888 | } | |
6889 | ||
6890 | return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0, | |
6891 | cmd, attr, info, gfp); | |
6892 | } | |
6893 | EXPORT_SYMBOL(__cfg80211_alloc_event_skb); | |
6894 | ||
6895 | void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) | |
6896 | { | |
6897 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
6898 | void *hdr = ((void **)skb->cb)[1]; | |
6899 | struct nlattr *data = ((void **)skb->cb)[2]; | |
6900 | enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; | |
6901 | ||
6902 | nla_nest_end(skb, data); | |
6903 | genlmsg_end(skb, hdr); | |
6904 | ||
6905 | if (data->nla_type == NL80211_ATTR_VENDOR_DATA) | |
6906 | mcgrp = NL80211_MCGRP_VENDOR; | |
6907 | ||
6908 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0, | |
6909 | mcgrp, gfp); | |
6910 | } | |
6911 | EXPORT_SYMBOL(__cfg80211_send_event_skb); | |
6912 | ||
aff89a9b | 6913 | #ifdef CONFIG_NL80211_TESTMODE |
aff89a9b JB |
6914 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) |
6915 | { | |
4c476991 | 6916 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fc73f11f DS |
6917 | struct wireless_dev *wdev = |
6918 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
aff89a9b JB |
6919 | int err; |
6920 | ||
fc73f11f DS |
6921 | if (!rdev->ops->testmode_cmd) |
6922 | return -EOPNOTSUPP; | |
6923 | ||
6924 | if (IS_ERR(wdev)) { | |
6925 | err = PTR_ERR(wdev); | |
6926 | if (err != -EINVAL) | |
6927 | return err; | |
6928 | wdev = NULL; | |
6929 | } else if (wdev->wiphy != &rdev->wiphy) { | |
6930 | return -EINVAL; | |
6931 | } | |
6932 | ||
aff89a9b JB |
6933 | if (!info->attrs[NL80211_ATTR_TESTDATA]) |
6934 | return -EINVAL; | |
6935 | ||
ad7e718c | 6936 | rdev->cur_cmd_info = info; |
fc73f11f | 6937 | err = rdev_testmode_cmd(rdev, wdev, |
aff89a9b JB |
6938 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
6939 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
ad7e718c | 6940 | rdev->cur_cmd_info = NULL; |
aff89a9b | 6941 | |
aff89a9b JB |
6942 | return err; |
6943 | } | |
6944 | ||
71063f0e WYG |
6945 | static int nl80211_testmode_dump(struct sk_buff *skb, |
6946 | struct netlink_callback *cb) | |
6947 | { | |
00918d33 | 6948 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
6949 | int err; |
6950 | long phy_idx; | |
6951 | void *data = NULL; | |
6952 | int data_len = 0; | |
6953 | ||
5fe231e8 JB |
6954 | rtnl_lock(); |
6955 | ||
71063f0e WYG |
6956 | if (cb->args[0]) { |
6957 | /* | |
6958 | * 0 is a valid index, but not valid for args[0], | |
6959 | * so we need to offset by 1. | |
6960 | */ | |
6961 | phy_idx = cb->args[0] - 1; | |
6962 | } else { | |
6963 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
6964 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
6965 | nl80211_policy); | |
6966 | if (err) | |
5fe231e8 | 6967 | goto out_err; |
00918d33 | 6968 | |
2bd7e35d JB |
6969 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), |
6970 | nl80211_fam.attrbuf); | |
6971 | if (IS_ERR(rdev)) { | |
5fe231e8 JB |
6972 | err = PTR_ERR(rdev); |
6973 | goto out_err; | |
00918d33 | 6974 | } |
2bd7e35d JB |
6975 | phy_idx = rdev->wiphy_idx; |
6976 | rdev = NULL; | |
2bd7e35d | 6977 | |
71063f0e WYG |
6978 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
6979 | cb->args[1] = | |
6980 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
6981 | } | |
6982 | ||
6983 | if (cb->args[1]) { | |
6984 | data = nla_data((void *)cb->args[1]); | |
6985 | data_len = nla_len((void *)cb->args[1]); | |
6986 | } | |
6987 | ||
00918d33 JB |
6988 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
6989 | if (!rdev) { | |
5fe231e8 JB |
6990 | err = -ENOENT; |
6991 | goto out_err; | |
71063f0e | 6992 | } |
71063f0e | 6993 | |
00918d33 | 6994 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
6995 | err = -EOPNOTSUPP; |
6996 | goto out_err; | |
6997 | } | |
6998 | ||
6999 | while (1) { | |
15e47304 | 7000 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
71063f0e WYG |
7001 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
7002 | NL80211_CMD_TESTMODE); | |
7003 | struct nlattr *tmdata; | |
7004 | ||
cb35fba3 DC |
7005 | if (!hdr) |
7006 | break; | |
7007 | ||
9360ffd1 | 7008 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
7009 | genlmsg_cancel(skb, hdr); |
7010 | break; | |
7011 | } | |
7012 | ||
7013 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
7014 | if (!tmdata) { | |
7015 | genlmsg_cancel(skb, hdr); | |
7016 | break; | |
7017 | } | |
e35e4d28 | 7018 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
71063f0e WYG |
7019 | nla_nest_end(skb, tmdata); |
7020 | ||
7021 | if (err == -ENOBUFS || err == -ENOENT) { | |
7022 | genlmsg_cancel(skb, hdr); | |
7023 | break; | |
7024 | } else if (err) { | |
7025 | genlmsg_cancel(skb, hdr); | |
7026 | goto out_err; | |
7027 | } | |
7028 | ||
7029 | genlmsg_end(skb, hdr); | |
7030 | } | |
7031 | ||
7032 | err = skb->len; | |
7033 | /* see above */ | |
7034 | cb->args[0] = phy_idx + 1; | |
7035 | out_err: | |
5fe231e8 | 7036 | rtnl_unlock(); |
71063f0e WYG |
7037 | return err; |
7038 | } | |
aff89a9b JB |
7039 | #endif |
7040 | ||
b23aa676 SO |
7041 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
7042 | { | |
4c476991 JB |
7043 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7044 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
7045 | struct cfg80211_connect_params connect; |
7046 | struct wiphy *wiphy; | |
fffd0934 | 7047 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
7048 | int err; |
7049 | ||
7050 | memset(&connect, 0, sizeof(connect)); | |
7051 | ||
7052 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7053 | return -EINVAL; | |
7054 | ||
7055 | if (!info->attrs[NL80211_ATTR_SSID] || | |
7056 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
7057 | return -EINVAL; | |
7058 | ||
7059 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
7060 | connect.auth_type = | |
7061 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
7062 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
7063 | NL80211_CMD_CONNECT)) | |
b23aa676 SO |
7064 | return -EINVAL; |
7065 | } else | |
7066 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
7067 | ||
7068 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
7069 | ||
c0692b8f | 7070 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 7071 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
7072 | if (err) |
7073 | return err; | |
b23aa676 | 7074 | |
074ac8df | 7075 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7076 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7077 | return -EOPNOTSUPP; | |
b23aa676 | 7078 | |
79c97e97 | 7079 | wiphy = &rdev->wiphy; |
b23aa676 | 7080 | |
4486ea98 BS |
7081 | connect.bg_scan_period = -1; |
7082 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
7083 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
7084 | connect.bg_scan_period = | |
7085 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
7086 | } | |
7087 | ||
b23aa676 SO |
7088 | if (info->attrs[NL80211_ATTR_MAC]) |
7089 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1df4a510 JM |
7090 | else if (info->attrs[NL80211_ATTR_MAC_HINT]) |
7091 | connect.bssid_hint = | |
7092 | nla_data(info->attrs[NL80211_ATTR_MAC_HINT]); | |
b23aa676 SO |
7093 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7094 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7095 | ||
7096 | if (info->attrs[NL80211_ATTR_IE]) { | |
7097 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7098 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7099 | } | |
7100 | ||
cee00a95 JM |
7101 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
7102 | connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
7103 | if (connect.mfp != NL80211_MFP_REQUIRED && | |
7104 | connect.mfp != NL80211_MFP_NO) | |
7105 | return -EINVAL; | |
7106 | } else { | |
7107 | connect.mfp = NL80211_MFP_NO; | |
7108 | } | |
7109 | ||
b23aa676 | 7110 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
664834de JM |
7111 | connect.channel = nl80211_get_valid_chan( |
7112 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7113 | if (!connect.channel) | |
1df4a510 JM |
7114 | return -EINVAL; |
7115 | } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) { | |
664834de JM |
7116 | connect.channel_hint = nl80211_get_valid_chan( |
7117 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]); | |
7118 | if (!connect.channel_hint) | |
4c476991 | 7119 | return -EINVAL; |
b23aa676 SO |
7120 | } |
7121 | ||
fffd0934 JB |
7122 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
7123 | connkeys = nl80211_parse_connkeys(rdev, | |
de7044ee | 7124 | info->attrs[NL80211_ATTR_KEYS], NULL); |
4c476991 JB |
7125 | if (IS_ERR(connkeys)) |
7126 | return PTR_ERR(connkeys); | |
fffd0934 JB |
7127 | } |
7128 | ||
7e7c8926 BG |
7129 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
7130 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
7131 | ||
7132 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7133 | memcpy(&connect.ht_capa_mask, | |
7134 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7135 | sizeof(connect.ht_capa_mask)); | |
7136 | ||
7137 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
b4e4f47e WY |
7138 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
7139 | kfree(connkeys); | |
7e7c8926 | 7140 | return -EINVAL; |
b4e4f47e | 7141 | } |
7e7c8926 BG |
7142 | memcpy(&connect.ht_capa, |
7143 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7144 | sizeof(connect.ht_capa)); | |
7145 | } | |
7146 | ||
ee2aca34 JB |
7147 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
7148 | connect.flags |= ASSOC_REQ_DISABLE_VHT; | |
7149 | ||
7150 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
7151 | memcpy(&connect.vht_capa_mask, | |
7152 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7153 | sizeof(connect.vht_capa_mask)); | |
7154 | ||
7155 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
7156 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) { | |
7157 | kfree(connkeys); | |
7158 | return -EINVAL; | |
7159 | } | |
7160 | memcpy(&connect.vht_capa, | |
7161 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7162 | sizeof(connect.vht_capa)); | |
7163 | } | |
7164 | ||
83739b03 JB |
7165 | wdev_lock(dev->ieee80211_ptr); |
7166 | err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL); | |
7167 | wdev_unlock(dev->ieee80211_ptr); | |
fffd0934 JB |
7168 | if (err) |
7169 | kfree(connkeys); | |
b23aa676 SO |
7170 | return err; |
7171 | } | |
7172 | ||
7173 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
7174 | { | |
4c476991 JB |
7175 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7176 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 | 7177 | u16 reason; |
83739b03 | 7178 | int ret; |
b23aa676 SO |
7179 | |
7180 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7181 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
7182 | else | |
7183 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
7184 | ||
7185 | if (reason == 0) | |
7186 | return -EINVAL; | |
7187 | ||
074ac8df | 7188 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7189 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7190 | return -EOPNOTSUPP; | |
b23aa676 | 7191 | |
83739b03 JB |
7192 | wdev_lock(dev->ieee80211_ptr); |
7193 | ret = cfg80211_disconnect(rdev, dev, reason, true); | |
7194 | wdev_unlock(dev->ieee80211_ptr); | |
7195 | return ret; | |
b23aa676 SO |
7196 | } |
7197 | ||
463d0183 JB |
7198 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
7199 | { | |
4c476991 | 7200 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
7201 | struct net *net; |
7202 | int err; | |
7203 | u32 pid; | |
7204 | ||
7205 | if (!info->attrs[NL80211_ATTR_PID]) | |
7206 | return -EINVAL; | |
7207 | ||
7208 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
7209 | ||
463d0183 | 7210 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
7211 | if (IS_ERR(net)) |
7212 | return PTR_ERR(net); | |
463d0183 JB |
7213 | |
7214 | err = 0; | |
7215 | ||
7216 | /* check if anything to do */ | |
4c476991 JB |
7217 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
7218 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 7219 | |
463d0183 | 7220 | put_net(net); |
463d0183 JB |
7221 | return err; |
7222 | } | |
7223 | ||
67fbb16b SO |
7224 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
7225 | { | |
4c476991 | 7226 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
7227 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
7228 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 7229 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
7230 | struct cfg80211_pmksa pmksa; |
7231 | ||
7232 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
7233 | ||
7234 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7235 | return -EINVAL; | |
7236 | ||
7237 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
7238 | return -EINVAL; | |
7239 | ||
67fbb16b SO |
7240 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
7241 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7242 | ||
074ac8df | 7243 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7244 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7245 | return -EOPNOTSUPP; | |
67fbb16b SO |
7246 | |
7247 | switch (info->genlhdr->cmd) { | |
7248 | case NL80211_CMD_SET_PMKSA: | |
7249 | rdev_ops = rdev->ops->set_pmksa; | |
7250 | break; | |
7251 | case NL80211_CMD_DEL_PMKSA: | |
7252 | rdev_ops = rdev->ops->del_pmksa; | |
7253 | break; | |
7254 | default: | |
7255 | WARN_ON(1); | |
7256 | break; | |
7257 | } | |
7258 | ||
4c476991 JB |
7259 | if (!rdev_ops) |
7260 | return -EOPNOTSUPP; | |
67fbb16b | 7261 | |
4c476991 | 7262 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
7263 | } |
7264 | ||
7265 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
7266 | { | |
4c476991 JB |
7267 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7268 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 7269 | |
074ac8df | 7270 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7271 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7272 | return -EOPNOTSUPP; | |
67fbb16b | 7273 | |
4c476991 JB |
7274 | if (!rdev->ops->flush_pmksa) |
7275 | return -EOPNOTSUPP; | |
67fbb16b | 7276 | |
e35e4d28 | 7277 | return rdev_flush_pmksa(rdev, dev); |
67fbb16b SO |
7278 | } |
7279 | ||
109086ce AN |
7280 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
7281 | { | |
7282 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7283 | struct net_device *dev = info->user_ptr[1]; | |
7284 | u8 action_code, dialog_token; | |
df942e7b | 7285 | u32 peer_capability = 0; |
109086ce AN |
7286 | u16 status_code; |
7287 | u8 *peer; | |
7288 | ||
7289 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
7290 | !rdev->ops->tdls_mgmt) | |
7291 | return -EOPNOTSUPP; | |
7292 | ||
7293 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
7294 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
7295 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
7296 | !info->attrs[NL80211_ATTR_IE] || | |
7297 | !info->attrs[NL80211_ATTR_MAC]) | |
7298 | return -EINVAL; | |
7299 | ||
7300 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7301 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
7302 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
7303 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
df942e7b SDU |
7304 | if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]) |
7305 | peer_capability = | |
7306 | nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]); | |
109086ce | 7307 | |
e35e4d28 | 7308 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
df942e7b | 7309 | dialog_token, status_code, peer_capability, |
e35e4d28 HG |
7310 | nla_data(info->attrs[NL80211_ATTR_IE]), |
7311 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
109086ce AN |
7312 | } |
7313 | ||
7314 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
7315 | { | |
7316 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7317 | struct net_device *dev = info->user_ptr[1]; | |
7318 | enum nl80211_tdls_operation operation; | |
7319 | u8 *peer; | |
7320 | ||
7321 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
7322 | !rdev->ops->tdls_oper) | |
7323 | return -EOPNOTSUPP; | |
7324 | ||
7325 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
7326 | !info->attrs[NL80211_ATTR_MAC]) | |
7327 | return -EINVAL; | |
7328 | ||
7329 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
7330 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
7331 | ||
e35e4d28 | 7332 | return rdev_tdls_oper(rdev, dev, peer, operation); |
109086ce AN |
7333 | } |
7334 | ||
9588bbd5 JM |
7335 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
7336 | struct genl_info *info) | |
7337 | { | |
4c476991 | 7338 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 7339 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 7340 | struct cfg80211_chan_def chandef; |
9588bbd5 JM |
7341 | struct sk_buff *msg; |
7342 | void *hdr; | |
7343 | u64 cookie; | |
683b6d3b | 7344 | u32 duration; |
9588bbd5 JM |
7345 | int err; |
7346 | ||
7347 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
7348 | !info->attrs[NL80211_ATTR_DURATION]) | |
7349 | return -EINVAL; | |
7350 | ||
7351 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
7352 | ||
ebf348fc JB |
7353 | if (!rdev->ops->remain_on_channel || |
7354 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
7355 | return -EOPNOTSUPP; | |
7356 | ||
9588bbd5 | 7357 | /* |
ebf348fc JB |
7358 | * We should be on that channel for at least a minimum amount of |
7359 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 7360 | */ |
ebf348fc | 7361 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 7362 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
7363 | return -EINVAL; |
7364 | ||
683b6d3b JB |
7365 | err = nl80211_parse_chandef(rdev, info, &chandef); |
7366 | if (err) | |
7367 | return err; | |
9588bbd5 JM |
7368 | |
7369 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
7370 | if (!msg) |
7371 | return -ENOMEM; | |
9588bbd5 | 7372 | |
15e47304 | 7373 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
9588bbd5 | 7374 | NL80211_CMD_REMAIN_ON_CHANNEL); |
cb35fba3 DC |
7375 | if (!hdr) { |
7376 | err = -ENOBUFS; | |
9588bbd5 JM |
7377 | goto free_msg; |
7378 | } | |
7379 | ||
683b6d3b JB |
7380 | err = rdev_remain_on_channel(rdev, wdev, chandef.chan, |
7381 | duration, &cookie); | |
9588bbd5 JM |
7382 | |
7383 | if (err) | |
7384 | goto free_msg; | |
7385 | ||
9360ffd1 DM |
7386 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
7387 | goto nla_put_failure; | |
9588bbd5 JM |
7388 | |
7389 | genlmsg_end(msg, hdr); | |
4c476991 JB |
7390 | |
7391 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
7392 | |
7393 | nla_put_failure: | |
7394 | err = -ENOBUFS; | |
7395 | free_msg: | |
7396 | nlmsg_free(msg); | |
9588bbd5 JM |
7397 | return err; |
7398 | } | |
7399 | ||
7400 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
7401 | struct genl_info *info) | |
7402 | { | |
4c476991 | 7403 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 7404 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 | 7405 | u64 cookie; |
9588bbd5 JM |
7406 | |
7407 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
7408 | return -EINVAL; | |
7409 | ||
4c476991 JB |
7410 | if (!rdev->ops->cancel_remain_on_channel) |
7411 | return -EOPNOTSUPP; | |
9588bbd5 | 7412 | |
9588bbd5 JM |
7413 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
7414 | ||
e35e4d28 | 7415 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
9588bbd5 JM |
7416 | } |
7417 | ||
13ae75b1 JM |
7418 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
7419 | u8 *rates, u8 rates_len) | |
7420 | { | |
7421 | u8 i; | |
7422 | u32 mask = 0; | |
7423 | ||
7424 | for (i = 0; i < rates_len; i++) { | |
7425 | int rate = (rates[i] & 0x7f) * 5; | |
7426 | int ridx; | |
7427 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
7428 | struct ieee80211_rate *srate = | |
7429 | &sband->bitrates[ridx]; | |
7430 | if (rate == srate->bitrate) { | |
7431 | mask |= 1 << ridx; | |
7432 | break; | |
7433 | } | |
7434 | } | |
7435 | if (ridx == sband->n_bitrates) | |
7436 | return 0; /* rate not found */ | |
7437 | } | |
7438 | ||
7439 | return mask; | |
7440 | } | |
7441 | ||
24db78c0 SW |
7442 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
7443 | u8 *rates, u8 rates_len, | |
7444 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
7445 | { | |
7446 | u8 i; | |
7447 | ||
7448 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
7449 | ||
7450 | for (i = 0; i < rates_len; i++) { | |
7451 | int ridx, rbit; | |
7452 | ||
7453 | ridx = rates[i] / 8; | |
7454 | rbit = BIT(rates[i] % 8); | |
7455 | ||
7456 | /* check validity */ | |
910570b5 | 7457 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
7458 | return false; |
7459 | ||
7460 | /* check availability */ | |
7461 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
7462 | mcs[ridx] |= rbit; | |
7463 | else | |
7464 | return false; | |
7465 | } | |
7466 | ||
7467 | return true; | |
7468 | } | |
7469 | ||
204e35a9 JD |
7470 | static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map) |
7471 | { | |
7472 | u16 mcs_mask = 0; | |
7473 | ||
7474 | switch (vht_mcs_map) { | |
7475 | case IEEE80211_VHT_MCS_NOT_SUPPORTED: | |
7476 | break; | |
7477 | case IEEE80211_VHT_MCS_SUPPORT_0_7: | |
7478 | mcs_mask = 0x00FF; | |
7479 | break; | |
7480 | case IEEE80211_VHT_MCS_SUPPORT_0_8: | |
7481 | mcs_mask = 0x01FF; | |
7482 | break; | |
7483 | case IEEE80211_VHT_MCS_SUPPORT_0_9: | |
7484 | mcs_mask = 0x03FF; | |
7485 | break; | |
7486 | default: | |
7487 | break; | |
7488 | } | |
7489 | ||
7490 | return mcs_mask; | |
7491 | } | |
7492 | ||
7493 | static void vht_build_mcs_mask(u16 vht_mcs_map, | |
7494 | u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) | |
7495 | { | |
7496 | u8 nss; | |
7497 | ||
7498 | for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) { | |
7499 | vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03); | |
7500 | vht_mcs_map >>= 2; | |
7501 | } | |
7502 | } | |
7503 | ||
7504 | static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, | |
7505 | struct nl80211_txrate_vht *txrate, | |
7506 | u16 mcs[NL80211_VHT_NSS_MAX]) | |
7507 | { | |
7508 | u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
7509 | u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {}; | |
7510 | u8 i; | |
7511 | ||
7512 | if (!sband->vht_cap.vht_supported) | |
7513 | return false; | |
7514 | ||
7515 | memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX); | |
7516 | ||
7517 | /* Build vht_mcs_mask from VHT capabilities */ | |
7518 | vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask); | |
7519 | ||
7520 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { | |
7521 | if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i]) | |
7522 | mcs[i] = txrate->mcs[i]; | |
7523 | else | |
7524 | return false; | |
7525 | } | |
7526 | ||
7527 | return true; | |
7528 | } | |
7529 | ||
b54452b0 | 7530 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
7531 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
7532 | .len = NL80211_MAX_SUPP_RATES }, | |
d1e33e65 JD |
7533 | [NL80211_TXRATE_HT] = { .type = NLA_BINARY, |
7534 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
204e35a9 | 7535 | [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, |
0b9323f6 | 7536 | [NL80211_TXRATE_GI] = { .type = NLA_U8 }, |
13ae75b1 JM |
7537 | }; |
7538 | ||
7539 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
7540 | struct genl_info *info) | |
7541 | { | |
7542 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 7543 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 7544 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
7545 | int rem, i; |
7546 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
7547 | struct nlattr *tx_rates; |
7548 | struct ieee80211_supported_band *sband; | |
204e35a9 | 7549 | u16 vht_tx_mcs_map; |
13ae75b1 | 7550 | |
4c476991 JB |
7551 | if (!rdev->ops->set_bitrate_mask) |
7552 | return -EOPNOTSUPP; | |
13ae75b1 JM |
7553 | |
7554 | memset(&mask, 0, sizeof(mask)); | |
7555 | /* Default to all rates enabled */ | |
7556 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
7557 | sband = rdev->wiphy.bands[i]; | |
7869303b JD |
7558 | |
7559 | if (!sband) | |
7560 | continue; | |
7561 | ||
7562 | mask.control[i].legacy = (1 << sband->n_bitrates) - 1; | |
d1e33e65 | 7563 | memcpy(mask.control[i].ht_mcs, |
7869303b | 7564 | sband->ht_cap.mcs.rx_mask, |
d1e33e65 | 7565 | sizeof(mask.control[i].ht_mcs)); |
204e35a9 JD |
7566 | |
7567 | if (!sband->vht_cap.vht_supported) | |
7568 | continue; | |
7569 | ||
7570 | vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
7571 | vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs); | |
13ae75b1 JM |
7572 | } |
7573 | ||
b9243ab0 JD |
7574 | /* if no rates are given set it back to the defaults */ |
7575 | if (!info->attrs[NL80211_ATTR_TX_RATES]) | |
7576 | goto out; | |
7577 | ||
13ae75b1 JM |
7578 | /* |
7579 | * The nested attribute uses enum nl80211_band as the index. This maps | |
7580 | * directly to the enum ieee80211_band values used in cfg80211. | |
7581 | */ | |
24db78c0 | 7582 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
ae811e21 | 7583 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { |
13ae75b1 | 7584 | enum ieee80211_band band = nla_type(tx_rates); |
ae811e21 JB |
7585 | int err; |
7586 | ||
4c476991 JB |
7587 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
7588 | return -EINVAL; | |
13ae75b1 | 7589 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
7590 | if (sband == NULL) |
7591 | return -EINVAL; | |
ae811e21 JB |
7592 | err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
7593 | nla_len(tx_rates), nl80211_txattr_policy); | |
7594 | if (err) | |
7595 | return err; | |
13ae75b1 JM |
7596 | if (tb[NL80211_TXRATE_LEGACY]) { |
7597 | mask.control[band].legacy = rateset_to_mask( | |
7598 | sband, | |
7599 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
7600 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
7601 | if ((mask.control[band].legacy == 0) && |
7602 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
7603 | return -EINVAL; | |
24db78c0 | 7604 | } |
d1e33e65 | 7605 | if (tb[NL80211_TXRATE_HT]) { |
24db78c0 SW |
7606 | if (!ht_rateset_to_mask( |
7607 | sband, | |
d1e33e65 JD |
7608 | nla_data(tb[NL80211_TXRATE_HT]), |
7609 | nla_len(tb[NL80211_TXRATE_HT]), | |
7610 | mask.control[band].ht_mcs)) | |
24db78c0 SW |
7611 | return -EINVAL; |
7612 | } | |
204e35a9 JD |
7613 | if (tb[NL80211_TXRATE_VHT]) { |
7614 | if (!vht_set_mcs_mask( | |
7615 | sband, | |
7616 | nla_data(tb[NL80211_TXRATE_VHT]), | |
7617 | mask.control[band].vht_mcs)) | |
7618 | return -EINVAL; | |
7619 | } | |
0b9323f6 JD |
7620 | if (tb[NL80211_TXRATE_GI]) { |
7621 | mask.control[band].gi = | |
7622 | nla_get_u8(tb[NL80211_TXRATE_GI]); | |
7623 | if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI) | |
7624 | return -EINVAL; | |
7625 | } | |
24db78c0 SW |
7626 | |
7627 | if (mask.control[band].legacy == 0) { | |
204e35a9 JD |
7628 | /* don't allow empty legacy rates if HT or VHT |
7629 | * are not even supported. | |
7630 | */ | |
7631 | if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported || | |
7632 | rdev->wiphy.bands[band]->vht_cap.vht_supported)) | |
24db78c0 SW |
7633 | return -EINVAL; |
7634 | ||
7635 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
d1e33e65 | 7636 | if (mask.control[band].ht_mcs[i]) |
204e35a9 JD |
7637 | goto out; |
7638 | ||
7639 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) | |
7640 | if (mask.control[band].vht_mcs[i]) | |
7641 | goto out; | |
24db78c0 SW |
7642 | |
7643 | /* legacy and mcs rates may not be both empty */ | |
204e35a9 | 7644 | return -EINVAL; |
13ae75b1 JM |
7645 | } |
7646 | } | |
7647 | ||
b9243ab0 | 7648 | out: |
e35e4d28 | 7649 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); |
13ae75b1 JM |
7650 | } |
7651 | ||
2e161f78 | 7652 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 7653 | { |
4c476991 | 7654 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 7655 | struct wireless_dev *wdev = info->user_ptr[1]; |
2e161f78 | 7656 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
7657 | |
7658 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
7659 | return -EINVAL; | |
7660 | ||
2e161f78 JB |
7661 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
7662 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 7663 | |
71bbc994 JB |
7664 | switch (wdev->iftype) { |
7665 | case NL80211_IFTYPE_STATION: | |
7666 | case NL80211_IFTYPE_ADHOC: | |
7667 | case NL80211_IFTYPE_P2P_CLIENT: | |
7668 | case NL80211_IFTYPE_AP: | |
7669 | case NL80211_IFTYPE_AP_VLAN: | |
7670 | case NL80211_IFTYPE_MESH_POINT: | |
7671 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 7672 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
7673 | break; |
7674 | default: | |
4c476991 | 7675 | return -EOPNOTSUPP; |
71bbc994 | 7676 | } |
026331c4 JM |
7677 | |
7678 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
7679 | if (!rdev->ops->mgmt_tx) |
7680 | return -EOPNOTSUPP; | |
026331c4 | 7681 | |
15e47304 | 7682 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
026331c4 JM |
7683 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
7684 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
7685 | } |
7686 | ||
2e161f78 | 7687 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 7688 | { |
4c476991 | 7689 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 7690 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 7691 | struct cfg80211_chan_def chandef; |
026331c4 | 7692 | int err; |
d64d373f | 7693 | void *hdr = NULL; |
026331c4 | 7694 | u64 cookie; |
e247bd90 | 7695 | struct sk_buff *msg = NULL; |
b176e629 AO |
7696 | struct cfg80211_mgmt_tx_params params = { |
7697 | .dont_wait_for_ack = | |
7698 | info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK], | |
7699 | }; | |
026331c4 | 7700 | |
683b6d3b | 7701 | if (!info->attrs[NL80211_ATTR_FRAME]) |
026331c4 JM |
7702 | return -EINVAL; |
7703 | ||
4c476991 JB |
7704 | if (!rdev->ops->mgmt_tx) |
7705 | return -EOPNOTSUPP; | |
026331c4 | 7706 | |
71bbc994 | 7707 | switch (wdev->iftype) { |
ea141b75 AQ |
7708 | case NL80211_IFTYPE_P2P_DEVICE: |
7709 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
7710 | return -EINVAL; | |
71bbc994 JB |
7711 | case NL80211_IFTYPE_STATION: |
7712 | case NL80211_IFTYPE_ADHOC: | |
7713 | case NL80211_IFTYPE_P2P_CLIENT: | |
7714 | case NL80211_IFTYPE_AP: | |
7715 | case NL80211_IFTYPE_AP_VLAN: | |
7716 | case NL80211_IFTYPE_MESH_POINT: | |
7717 | case NL80211_IFTYPE_P2P_GO: | |
7718 | break; | |
7719 | default: | |
4c476991 | 7720 | return -EOPNOTSUPP; |
71bbc994 | 7721 | } |
026331c4 | 7722 | |
f7ca38df | 7723 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 7724 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df | 7725 | return -EINVAL; |
b176e629 | 7726 | params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
ebf348fc JB |
7727 | |
7728 | /* | |
7729 | * We should wait on the channel for at least a minimum amount | |
7730 | * of time (10ms) but no longer than the driver supports. | |
7731 | */ | |
b176e629 AO |
7732 | if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
7733 | params.wait > rdev->wiphy.max_remain_on_channel_duration) | |
ebf348fc JB |
7734 | return -EINVAL; |
7735 | ||
f7ca38df JB |
7736 | } |
7737 | ||
b176e629 | 7738 | params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
f7ca38df | 7739 | |
b176e629 | 7740 | if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
7c4ef712 JB |
7741 | return -EINVAL; |
7742 | ||
b176e629 | 7743 | params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
e9f935e3 | 7744 | |
ea141b75 AQ |
7745 | /* get the channel if any has been specified, otherwise pass NULL to |
7746 | * the driver. The latter will use the current one | |
7747 | */ | |
7748 | chandef.chan = NULL; | |
7749 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
7750 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
7751 | if (err) | |
7752 | return err; | |
7753 | } | |
7754 | ||
b176e629 | 7755 | if (!chandef.chan && params.offchan) |
ea141b75 | 7756 | return -EINVAL; |
026331c4 | 7757 | |
b176e629 | 7758 | if (!params.dont_wait_for_ack) { |
e247bd90 JB |
7759 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
7760 | if (!msg) | |
7761 | return -ENOMEM; | |
026331c4 | 7762 | |
15e47304 | 7763 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
e247bd90 | 7764 | NL80211_CMD_FRAME); |
cb35fba3 DC |
7765 | if (!hdr) { |
7766 | err = -ENOBUFS; | |
e247bd90 JB |
7767 | goto free_msg; |
7768 | } | |
026331c4 | 7769 | } |
e247bd90 | 7770 | |
b176e629 AO |
7771 | params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); |
7772 | params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); | |
7773 | params.chan = chandef.chan; | |
7774 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); | |
026331c4 JM |
7775 | if (err) |
7776 | goto free_msg; | |
7777 | ||
e247bd90 | 7778 | if (msg) { |
9360ffd1 DM |
7779 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
7780 | goto nla_put_failure; | |
026331c4 | 7781 | |
e247bd90 JB |
7782 | genlmsg_end(msg, hdr); |
7783 | return genlmsg_reply(msg, info); | |
7784 | } | |
7785 | ||
7786 | return 0; | |
026331c4 JM |
7787 | |
7788 | nla_put_failure: | |
7789 | err = -ENOBUFS; | |
7790 | free_msg: | |
7791 | nlmsg_free(msg); | |
026331c4 JM |
7792 | return err; |
7793 | } | |
7794 | ||
f7ca38df JB |
7795 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
7796 | { | |
7797 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
71bbc994 | 7798 | struct wireless_dev *wdev = info->user_ptr[1]; |
f7ca38df JB |
7799 | u64 cookie; |
7800 | ||
7801 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
7802 | return -EINVAL; | |
7803 | ||
7804 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
7805 | return -EOPNOTSUPP; | |
7806 | ||
71bbc994 JB |
7807 | switch (wdev->iftype) { |
7808 | case NL80211_IFTYPE_STATION: | |
7809 | case NL80211_IFTYPE_ADHOC: | |
7810 | case NL80211_IFTYPE_P2P_CLIENT: | |
7811 | case NL80211_IFTYPE_AP: | |
7812 | case NL80211_IFTYPE_AP_VLAN: | |
7813 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 7814 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
7815 | break; |
7816 | default: | |
f7ca38df | 7817 | return -EOPNOTSUPP; |
71bbc994 | 7818 | } |
f7ca38df JB |
7819 | |
7820 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
7821 | ||
e35e4d28 | 7822 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
f7ca38df JB |
7823 | } |
7824 | ||
ffb9eb3d KV |
7825 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
7826 | { | |
4c476991 | 7827 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 7828 | struct wireless_dev *wdev; |
4c476991 | 7829 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
7830 | u8 ps_state; |
7831 | bool state; | |
7832 | int err; | |
7833 | ||
4c476991 JB |
7834 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
7835 | return -EINVAL; | |
ffb9eb3d KV |
7836 | |
7837 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
7838 | ||
4c476991 JB |
7839 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
7840 | return -EINVAL; | |
ffb9eb3d KV |
7841 | |
7842 | wdev = dev->ieee80211_ptr; | |
7843 | ||
4c476991 JB |
7844 | if (!rdev->ops->set_power_mgmt) |
7845 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
7846 | |
7847 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
7848 | ||
7849 | if (state == wdev->ps) | |
4c476991 | 7850 | return 0; |
ffb9eb3d | 7851 | |
e35e4d28 | 7852 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
4c476991 JB |
7853 | if (!err) |
7854 | wdev->ps = state; | |
ffb9eb3d KV |
7855 | return err; |
7856 | } | |
7857 | ||
7858 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
7859 | { | |
4c476991 | 7860 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
7861 | enum nl80211_ps_state ps_state; |
7862 | struct wireless_dev *wdev; | |
4c476991 | 7863 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
7864 | struct sk_buff *msg; |
7865 | void *hdr; | |
7866 | int err; | |
7867 | ||
ffb9eb3d KV |
7868 | wdev = dev->ieee80211_ptr; |
7869 | ||
4c476991 JB |
7870 | if (!rdev->ops->set_power_mgmt) |
7871 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
7872 | |
7873 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
7874 | if (!msg) |
7875 | return -ENOMEM; | |
ffb9eb3d | 7876 | |
15e47304 | 7877 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ffb9eb3d KV |
7878 | NL80211_CMD_GET_POWER_SAVE); |
7879 | if (!hdr) { | |
4c476991 | 7880 | err = -ENOBUFS; |
ffb9eb3d KV |
7881 | goto free_msg; |
7882 | } | |
7883 | ||
7884 | if (wdev->ps) | |
7885 | ps_state = NL80211_PS_ENABLED; | |
7886 | else | |
7887 | ps_state = NL80211_PS_DISABLED; | |
7888 | ||
9360ffd1 DM |
7889 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
7890 | goto nla_put_failure; | |
ffb9eb3d KV |
7891 | |
7892 | genlmsg_end(msg, hdr); | |
4c476991 | 7893 | return genlmsg_reply(msg, info); |
ffb9eb3d | 7894 | |
4c476991 | 7895 | nla_put_failure: |
ffb9eb3d | 7896 | err = -ENOBUFS; |
4c476991 | 7897 | free_msg: |
ffb9eb3d | 7898 | nlmsg_free(msg); |
ffb9eb3d KV |
7899 | return err; |
7900 | } | |
7901 | ||
94e860f1 JB |
7902 | static const struct nla_policy |
7903 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
d6dc1a38 JO |
7904 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, |
7905 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
7906 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
84f10708 TP |
7907 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
7908 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
7909 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
d6dc1a38 JO |
7910 | }; |
7911 | ||
84f10708 | 7912 | static int nl80211_set_cqm_txe(struct genl_info *info, |
d9d8b019 | 7913 | u32 rate, u32 pkts, u32 intvl) |
84f10708 TP |
7914 | { |
7915 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
84f10708 | 7916 | struct net_device *dev = info->user_ptr[1]; |
1da5fcc8 | 7917 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
84f10708 | 7918 | |
d9d8b019 | 7919 | if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) |
84f10708 TP |
7920 | return -EINVAL; |
7921 | ||
84f10708 TP |
7922 | if (!rdev->ops->set_cqm_txe_config) |
7923 | return -EOPNOTSUPP; | |
7924 | ||
7925 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
7926 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
7927 | return -EOPNOTSUPP; | |
7928 | ||
e35e4d28 | 7929 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
84f10708 TP |
7930 | } |
7931 | ||
d6dc1a38 JO |
7932 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
7933 | s32 threshold, u32 hysteresis) | |
7934 | { | |
4c476991 | 7935 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 7936 | struct net_device *dev = info->user_ptr[1]; |
1da5fcc8 | 7937 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
d6dc1a38 JO |
7938 | |
7939 | if (threshold > 0) | |
7940 | return -EINVAL; | |
7941 | ||
1da5fcc8 JB |
7942 | /* disabling - hysteresis should also be zero then */ |
7943 | if (threshold == 0) | |
7944 | hysteresis = 0; | |
d6dc1a38 | 7945 | |
4c476991 JB |
7946 | if (!rdev->ops->set_cqm_rssi_config) |
7947 | return -EOPNOTSUPP; | |
d6dc1a38 | 7948 | |
074ac8df | 7949 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7950 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7951 | return -EOPNOTSUPP; | |
d6dc1a38 | 7952 | |
e35e4d28 | 7953 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); |
d6dc1a38 JO |
7954 | } |
7955 | ||
7956 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
7957 | { | |
7958 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
7959 | struct nlattr *cqm; | |
7960 | int err; | |
7961 | ||
7962 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
1da5fcc8 JB |
7963 | if (!cqm) |
7964 | return -EINVAL; | |
d6dc1a38 JO |
7965 | |
7966 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
7967 | nl80211_attr_cqm_policy); | |
7968 | if (err) | |
1da5fcc8 | 7969 | return err; |
d6dc1a38 JO |
7970 | |
7971 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
7972 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
1da5fcc8 JB |
7973 | s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); |
7974 | u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
d6dc1a38 | 7975 | |
1da5fcc8 JB |
7976 | return nl80211_set_cqm_rssi(info, threshold, hysteresis); |
7977 | } | |
7978 | ||
7979 | if (attrs[NL80211_ATTR_CQM_TXE_RATE] && | |
7980 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
7981 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
7982 | u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
7983 | u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
7984 | u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
7985 | ||
7986 | return nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
7987 | } | |
7988 | ||
7989 | return -EINVAL; | |
d6dc1a38 JO |
7990 | } |
7991 | ||
29cbe68c JB |
7992 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
7993 | { | |
7994 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7995 | struct net_device *dev = info->user_ptr[1]; | |
7996 | struct mesh_config cfg; | |
c80d545d | 7997 | struct mesh_setup setup; |
29cbe68c JB |
7998 | int err; |
7999 | ||
8000 | /* start with default */ | |
8001 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 8002 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 8003 | |
24bdd9f4 | 8004 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 8005 | /* and parse parameters if given */ |
24bdd9f4 | 8006 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
8007 | if (err) |
8008 | return err; | |
8009 | } | |
8010 | ||
8011 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
8012 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
8013 | return -EINVAL; | |
8014 | ||
c80d545d JC |
8015 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
8016 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
8017 | ||
4bb62344 CYY |
8018 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
8019 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
8020 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
8021 | return -EINVAL; | |
8022 | ||
9bdbf04d MP |
8023 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
8024 | setup.beacon_interval = | |
8025 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
8026 | if (setup.beacon_interval < 10 || | |
8027 | setup.beacon_interval > 10000) | |
8028 | return -EINVAL; | |
8029 | } | |
8030 | ||
8031 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
8032 | setup.dtim_period = | |
8033 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
8034 | if (setup.dtim_period < 1 || setup.dtim_period > 100) | |
8035 | return -EINVAL; | |
8036 | } | |
8037 | ||
c80d545d JC |
8038 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
8039 | /* parse additional setup parameters if given */ | |
8040 | err = nl80211_parse_mesh_setup(info, &setup); | |
8041 | if (err) | |
8042 | return err; | |
8043 | } | |
8044 | ||
d37bb18a TP |
8045 | if (setup.user_mpm) |
8046 | cfg.auto_open_plinks = false; | |
8047 | ||
cc1d2806 | 8048 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
8049 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
8050 | if (err) | |
8051 | return err; | |
cc1d2806 JB |
8052 | } else { |
8053 | /* cfg80211_join_mesh() will sort it out */ | |
683b6d3b | 8054 | setup.chandef.chan = NULL; |
cc1d2806 JB |
8055 | } |
8056 | ||
ffb3cf30 AN |
8057 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
8058 | u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8059 | int n_rates = | |
8060 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8061 | struct ieee80211_supported_band *sband; | |
8062 | ||
8063 | if (!setup.chandef.chan) | |
8064 | return -EINVAL; | |
8065 | ||
8066 | sband = rdev->wiphy.bands[setup.chandef.chan->band]; | |
8067 | ||
8068 | err = ieee80211_get_ratemask(sband, rates, n_rates, | |
8069 | &setup.basic_rates); | |
8070 | if (err) | |
8071 | return err; | |
8072 | } | |
8073 | ||
c80d545d | 8074 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
8075 | } |
8076 | ||
8077 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
8078 | { | |
8079 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8080 | struct net_device *dev = info->user_ptr[1]; | |
8081 | ||
8082 | return cfg80211_leave_mesh(rdev, dev); | |
8083 | } | |
8084 | ||
dfb89c56 | 8085 | #ifdef CONFIG_PM |
bb92d199 AK |
8086 | static int nl80211_send_wowlan_patterns(struct sk_buff *msg, |
8087 | struct cfg80211_registered_device *rdev) | |
8088 | { | |
6abb9cb9 | 8089 | struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config; |
bb92d199 AK |
8090 | struct nlattr *nl_pats, *nl_pat; |
8091 | int i, pat_len; | |
8092 | ||
6abb9cb9 | 8093 | if (!wowlan->n_patterns) |
bb92d199 AK |
8094 | return 0; |
8095 | ||
8096 | nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
8097 | if (!nl_pats) | |
8098 | return -ENOBUFS; | |
8099 | ||
6abb9cb9 | 8100 | for (i = 0; i < wowlan->n_patterns; i++) { |
bb92d199 AK |
8101 | nl_pat = nla_nest_start(msg, i + 1); |
8102 | if (!nl_pat) | |
8103 | return -ENOBUFS; | |
6abb9cb9 | 8104 | pat_len = wowlan->patterns[i].pattern_len; |
50ac6607 | 8105 | if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8), |
6abb9cb9 | 8106 | wowlan->patterns[i].mask) || |
50ac6607 AK |
8107 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
8108 | wowlan->patterns[i].pattern) || | |
8109 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
6abb9cb9 | 8110 | wowlan->patterns[i].pkt_offset)) |
bb92d199 AK |
8111 | return -ENOBUFS; |
8112 | nla_nest_end(msg, nl_pat); | |
8113 | } | |
8114 | nla_nest_end(msg, nl_pats); | |
8115 | ||
8116 | return 0; | |
8117 | } | |
8118 | ||
2a0e047e JB |
8119 | static int nl80211_send_wowlan_tcp(struct sk_buff *msg, |
8120 | struct cfg80211_wowlan_tcp *tcp) | |
8121 | { | |
8122 | struct nlattr *nl_tcp; | |
8123 | ||
8124 | if (!tcp) | |
8125 | return 0; | |
8126 | ||
8127 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
8128 | if (!nl_tcp) | |
8129 | return -ENOBUFS; | |
8130 | ||
8131 | if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || | |
8132 | nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || | |
8133 | nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || | |
8134 | nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || | |
8135 | nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || | |
8136 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
8137 | tcp->payload_len, tcp->payload) || | |
8138 | nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
8139 | tcp->data_interval) || | |
8140 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
8141 | tcp->wake_len, tcp->wake_data) || | |
8142 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, | |
8143 | DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) | |
8144 | return -ENOBUFS; | |
8145 | ||
8146 | if (tcp->payload_seq.len && | |
8147 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, | |
8148 | sizeof(tcp->payload_seq), &tcp->payload_seq)) | |
8149 | return -ENOBUFS; | |
8150 | ||
8151 | if (tcp->payload_tok.len && | |
8152 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
8153 | sizeof(tcp->payload_tok) + tcp->tokens_size, | |
8154 | &tcp->payload_tok)) | |
8155 | return -ENOBUFS; | |
8156 | ||
e248ad30 JB |
8157 | nla_nest_end(msg, nl_tcp); |
8158 | ||
2a0e047e JB |
8159 | return 0; |
8160 | } | |
8161 | ||
ff1b6e69 JB |
8162 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
8163 | { | |
8164 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8165 | struct sk_buff *msg; | |
8166 | void *hdr; | |
2a0e047e | 8167 | u32 size = NLMSG_DEFAULT_SIZE; |
ff1b6e69 | 8168 | |
964dc9e2 | 8169 | if (!rdev->wiphy.wowlan) |
ff1b6e69 JB |
8170 | return -EOPNOTSUPP; |
8171 | ||
6abb9cb9 | 8172 | if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) { |
2a0e047e | 8173 | /* adjust size to have room for all the data */ |
6abb9cb9 JB |
8174 | size += rdev->wiphy.wowlan_config->tcp->tokens_size + |
8175 | rdev->wiphy.wowlan_config->tcp->payload_len + | |
8176 | rdev->wiphy.wowlan_config->tcp->wake_len + | |
8177 | rdev->wiphy.wowlan_config->tcp->wake_len / 8; | |
2a0e047e JB |
8178 | } |
8179 | ||
8180 | msg = nlmsg_new(size, GFP_KERNEL); | |
ff1b6e69 JB |
8181 | if (!msg) |
8182 | return -ENOMEM; | |
8183 | ||
15e47304 | 8184 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ff1b6e69 JB |
8185 | NL80211_CMD_GET_WOWLAN); |
8186 | if (!hdr) | |
8187 | goto nla_put_failure; | |
8188 | ||
6abb9cb9 | 8189 | if (rdev->wiphy.wowlan_config) { |
ff1b6e69 JB |
8190 | struct nlattr *nl_wowlan; |
8191 | ||
8192 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
8193 | if (!nl_wowlan) | |
8194 | goto nla_put_failure; | |
8195 | ||
6abb9cb9 | 8196 | if ((rdev->wiphy.wowlan_config->any && |
9360ffd1 | 8197 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
6abb9cb9 | 8198 | (rdev->wiphy.wowlan_config->disconnect && |
9360ffd1 | 8199 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
6abb9cb9 | 8200 | (rdev->wiphy.wowlan_config->magic_pkt && |
9360ffd1 | 8201 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
6abb9cb9 | 8202 | (rdev->wiphy.wowlan_config->gtk_rekey_failure && |
9360ffd1 | 8203 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
6abb9cb9 | 8204 | (rdev->wiphy.wowlan_config->eap_identity_req && |
9360ffd1 | 8205 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
6abb9cb9 | 8206 | (rdev->wiphy.wowlan_config->four_way_handshake && |
9360ffd1 | 8207 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
6abb9cb9 | 8208 | (rdev->wiphy.wowlan_config->rfkill_release && |
9360ffd1 DM |
8209 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
8210 | goto nla_put_failure; | |
2a0e047e | 8211 | |
bb92d199 AK |
8212 | if (nl80211_send_wowlan_patterns(msg, rdev)) |
8213 | goto nla_put_failure; | |
2a0e047e | 8214 | |
6abb9cb9 JB |
8215 | if (nl80211_send_wowlan_tcp(msg, |
8216 | rdev->wiphy.wowlan_config->tcp)) | |
2a0e047e JB |
8217 | goto nla_put_failure; |
8218 | ||
ff1b6e69 JB |
8219 | nla_nest_end(msg, nl_wowlan); |
8220 | } | |
8221 | ||
8222 | genlmsg_end(msg, hdr); | |
8223 | return genlmsg_reply(msg, info); | |
8224 | ||
8225 | nla_put_failure: | |
8226 | nlmsg_free(msg); | |
8227 | return -ENOBUFS; | |
8228 | } | |
8229 | ||
2a0e047e JB |
8230 | static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, |
8231 | struct nlattr *attr, | |
8232 | struct cfg80211_wowlan *trig) | |
8233 | { | |
8234 | struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; | |
8235 | struct cfg80211_wowlan_tcp *cfg; | |
8236 | struct nl80211_wowlan_tcp_data_token *tok = NULL; | |
8237 | struct nl80211_wowlan_tcp_data_seq *seq = NULL; | |
8238 | u32 size; | |
8239 | u32 data_size, wake_size, tokens_size = 0, wake_mask_size; | |
8240 | int err, port; | |
8241 | ||
964dc9e2 | 8242 | if (!rdev->wiphy.wowlan->tcp) |
2a0e047e JB |
8243 | return -EINVAL; |
8244 | ||
8245 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, | |
8246 | nla_data(attr), nla_len(attr), | |
8247 | nl80211_wowlan_tcp_policy); | |
8248 | if (err) | |
8249 | return err; | |
8250 | ||
8251 | if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || | |
8252 | !tb[NL80211_WOWLAN_TCP_DST_IPV4] || | |
8253 | !tb[NL80211_WOWLAN_TCP_DST_MAC] || | |
8254 | !tb[NL80211_WOWLAN_TCP_DST_PORT] || | |
8255 | !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || | |
8256 | !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || | |
8257 | !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || | |
8258 | !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) | |
8259 | return -EINVAL; | |
8260 | ||
8261 | data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); | |
964dc9e2 | 8262 | if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max) |
2a0e047e JB |
8263 | return -EINVAL; |
8264 | ||
8265 | if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > | |
964dc9e2 | 8266 | rdev->wiphy.wowlan->tcp->data_interval_max || |
723d568a | 8267 | nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) |
2a0e047e JB |
8268 | return -EINVAL; |
8269 | ||
8270 | wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); | |
964dc9e2 | 8271 | if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max) |
2a0e047e JB |
8272 | return -EINVAL; |
8273 | ||
8274 | wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); | |
8275 | if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) | |
8276 | return -EINVAL; | |
8277 | ||
8278 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { | |
8279 | u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
8280 | ||
8281 | tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
8282 | tokens_size = tokln - sizeof(*tok); | |
8283 | ||
8284 | if (!tok->len || tokens_size % tok->len) | |
8285 | return -EINVAL; | |
964dc9e2 | 8286 | if (!rdev->wiphy.wowlan->tcp->tok) |
2a0e047e | 8287 | return -EINVAL; |
964dc9e2 | 8288 | if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len) |
2a0e047e | 8289 | return -EINVAL; |
964dc9e2 | 8290 | if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len) |
2a0e047e | 8291 | return -EINVAL; |
964dc9e2 | 8292 | if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize) |
2a0e047e JB |
8293 | return -EINVAL; |
8294 | if (tok->offset + tok->len > data_size) | |
8295 | return -EINVAL; | |
8296 | } | |
8297 | ||
8298 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { | |
8299 | seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); | |
964dc9e2 | 8300 | if (!rdev->wiphy.wowlan->tcp->seq) |
2a0e047e JB |
8301 | return -EINVAL; |
8302 | if (seq->len == 0 || seq->len > 4) | |
8303 | return -EINVAL; | |
8304 | if (seq->len + seq->offset > data_size) | |
8305 | return -EINVAL; | |
8306 | } | |
8307 | ||
8308 | size = sizeof(*cfg); | |
8309 | size += data_size; | |
8310 | size += wake_size + wake_mask_size; | |
8311 | size += tokens_size; | |
8312 | ||
8313 | cfg = kzalloc(size, GFP_KERNEL); | |
8314 | if (!cfg) | |
8315 | return -ENOMEM; | |
8316 | cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); | |
8317 | cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]); | |
8318 | memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), | |
8319 | ETH_ALEN); | |
8320 | if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) | |
8321 | port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); | |
8322 | else | |
8323 | port = 0; | |
8324 | #ifdef CONFIG_INET | |
8325 | /* allocate a socket and port for it and use it */ | |
8326 | err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, | |
8327 | IPPROTO_TCP, &cfg->sock, 1); | |
8328 | if (err) { | |
8329 | kfree(cfg); | |
8330 | return err; | |
8331 | } | |
8332 | if (inet_csk_get_port(cfg->sock->sk, port)) { | |
8333 | sock_release(cfg->sock); | |
8334 | kfree(cfg); | |
8335 | return -EADDRINUSE; | |
8336 | } | |
8337 | cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; | |
8338 | #else | |
8339 | if (!port) { | |
8340 | kfree(cfg); | |
8341 | return -EINVAL; | |
8342 | } | |
8343 | cfg->src_port = port; | |
8344 | #endif | |
8345 | ||
8346 | cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); | |
8347 | cfg->payload_len = data_size; | |
8348 | cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; | |
8349 | memcpy((void *)cfg->payload, | |
8350 | nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), | |
8351 | data_size); | |
8352 | if (seq) | |
8353 | cfg->payload_seq = *seq; | |
8354 | cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); | |
8355 | cfg->wake_len = wake_size; | |
8356 | cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; | |
8357 | memcpy((void *)cfg->wake_data, | |
8358 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), | |
8359 | wake_size); | |
8360 | cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + | |
8361 | data_size + wake_size; | |
8362 | memcpy((void *)cfg->wake_mask, | |
8363 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), | |
8364 | wake_mask_size); | |
8365 | if (tok) { | |
8366 | cfg->tokens_size = tokens_size; | |
8367 | memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); | |
8368 | } | |
8369 | ||
8370 | trig->tcp = cfg; | |
8371 | ||
8372 | return 0; | |
8373 | } | |
8374 | ||
ff1b6e69 JB |
8375 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) |
8376 | { | |
8377 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8378 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
ff1b6e69 | 8379 | struct cfg80211_wowlan new_triggers = {}; |
ae33bd81 | 8380 | struct cfg80211_wowlan *ntrig; |
964dc9e2 | 8381 | const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan; |
ff1b6e69 | 8382 | int err, i; |
6abb9cb9 | 8383 | bool prev_enabled = rdev->wiphy.wowlan_config; |
ff1b6e69 | 8384 | |
964dc9e2 | 8385 | if (!wowlan) |
ff1b6e69 JB |
8386 | return -EOPNOTSUPP; |
8387 | ||
ae33bd81 JB |
8388 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
8389 | cfg80211_rdev_free_wowlan(rdev); | |
6abb9cb9 | 8390 | rdev->wiphy.wowlan_config = NULL; |
ae33bd81 JB |
8391 | goto set_wakeup; |
8392 | } | |
ff1b6e69 JB |
8393 | |
8394 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
8395 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
8396 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
8397 | nl80211_wowlan_policy); | |
8398 | if (err) | |
8399 | return err; | |
8400 | ||
8401 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
8402 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
8403 | return -EINVAL; | |
8404 | new_triggers.any = true; | |
8405 | } | |
8406 | ||
8407 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
8408 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
8409 | return -EINVAL; | |
8410 | new_triggers.disconnect = true; | |
8411 | } | |
8412 | ||
8413 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
8414 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
8415 | return -EINVAL; | |
8416 | new_triggers.magic_pkt = true; | |
8417 | } | |
8418 | ||
77dbbb13 JB |
8419 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
8420 | return -EINVAL; | |
8421 | ||
8422 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
8423 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
8424 | return -EINVAL; | |
8425 | new_triggers.gtk_rekey_failure = true; | |
8426 | } | |
8427 | ||
8428 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
8429 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
8430 | return -EINVAL; | |
8431 | new_triggers.eap_identity_req = true; | |
8432 | } | |
8433 | ||
8434 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
8435 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
8436 | return -EINVAL; | |
8437 | new_triggers.four_way_handshake = true; | |
8438 | } | |
8439 | ||
8440 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
8441 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
8442 | return -EINVAL; | |
8443 | new_triggers.rfkill_release = true; | |
8444 | } | |
8445 | ||
ff1b6e69 JB |
8446 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
8447 | struct nlattr *pat; | |
8448 | int n_patterns = 0; | |
bb92d199 | 8449 | int rem, pat_len, mask_len, pkt_offset; |
50ac6607 | 8450 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
ff1b6e69 JB |
8451 | |
8452 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
8453 | rem) | |
8454 | n_patterns++; | |
8455 | if (n_patterns > wowlan->n_patterns) | |
8456 | return -EINVAL; | |
8457 | ||
8458 | new_triggers.patterns = kcalloc(n_patterns, | |
8459 | sizeof(new_triggers.patterns[0]), | |
8460 | GFP_KERNEL); | |
8461 | if (!new_triggers.patterns) | |
8462 | return -ENOMEM; | |
8463 | ||
8464 | new_triggers.n_patterns = n_patterns; | |
8465 | i = 0; | |
8466 | ||
8467 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
8468 | rem) { | |
50ac6607 AK |
8469 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
8470 | nla_len(pat), NULL); | |
ff1b6e69 | 8471 | err = -EINVAL; |
50ac6607 AK |
8472 | if (!pat_tb[NL80211_PKTPAT_MASK] || |
8473 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
ff1b6e69 | 8474 | goto error; |
50ac6607 | 8475 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
ff1b6e69 | 8476 | mask_len = DIV_ROUND_UP(pat_len, 8); |
50ac6607 | 8477 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
ff1b6e69 JB |
8478 | goto error; |
8479 | if (pat_len > wowlan->pattern_max_len || | |
8480 | pat_len < wowlan->pattern_min_len) | |
8481 | goto error; | |
8482 | ||
50ac6607 | 8483 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
bb92d199 AK |
8484 | pkt_offset = 0; |
8485 | else | |
8486 | pkt_offset = nla_get_u32( | |
50ac6607 | 8487 | pat_tb[NL80211_PKTPAT_OFFSET]); |
bb92d199 AK |
8488 | if (pkt_offset > wowlan->max_pkt_offset) |
8489 | goto error; | |
8490 | new_triggers.patterns[i].pkt_offset = pkt_offset; | |
8491 | ||
ff1b6e69 JB |
8492 | new_triggers.patterns[i].mask = |
8493 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
8494 | if (!new_triggers.patterns[i].mask) { | |
8495 | err = -ENOMEM; | |
8496 | goto error; | |
8497 | } | |
8498 | new_triggers.patterns[i].pattern = | |
8499 | new_triggers.patterns[i].mask + mask_len; | |
8500 | memcpy(new_triggers.patterns[i].mask, | |
50ac6607 | 8501 | nla_data(pat_tb[NL80211_PKTPAT_MASK]), |
ff1b6e69 JB |
8502 | mask_len); |
8503 | new_triggers.patterns[i].pattern_len = pat_len; | |
8504 | memcpy(new_triggers.patterns[i].pattern, | |
50ac6607 | 8505 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
ff1b6e69 JB |
8506 | pat_len); |
8507 | i++; | |
8508 | } | |
8509 | } | |
8510 | ||
2a0e047e JB |
8511 | if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { |
8512 | err = nl80211_parse_wowlan_tcp( | |
8513 | rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], | |
8514 | &new_triggers); | |
8515 | if (err) | |
8516 | goto error; | |
8517 | } | |
8518 | ||
ae33bd81 JB |
8519 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
8520 | if (!ntrig) { | |
8521 | err = -ENOMEM; | |
8522 | goto error; | |
ff1b6e69 | 8523 | } |
ae33bd81 | 8524 | cfg80211_rdev_free_wowlan(rdev); |
6abb9cb9 | 8525 | rdev->wiphy.wowlan_config = ntrig; |
ff1b6e69 | 8526 | |
ae33bd81 | 8527 | set_wakeup: |
6abb9cb9 JB |
8528 | if (rdev->ops->set_wakeup && |
8529 | prev_enabled != !!rdev->wiphy.wowlan_config) | |
8530 | rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config); | |
6d52563f | 8531 | |
ff1b6e69 JB |
8532 | return 0; |
8533 | error: | |
8534 | for (i = 0; i < new_triggers.n_patterns; i++) | |
8535 | kfree(new_triggers.patterns[i].mask); | |
8536 | kfree(new_triggers.patterns); | |
2a0e047e JB |
8537 | if (new_triggers.tcp && new_triggers.tcp->sock) |
8538 | sock_release(new_triggers.tcp->sock); | |
8539 | kfree(new_triggers.tcp); | |
ff1b6e69 JB |
8540 | return err; |
8541 | } | |
dfb89c56 | 8542 | #endif |
ff1b6e69 | 8543 | |
be29b99a AK |
8544 | static int nl80211_send_coalesce_rules(struct sk_buff *msg, |
8545 | struct cfg80211_registered_device *rdev) | |
8546 | { | |
8547 | struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules; | |
8548 | int i, j, pat_len; | |
8549 | struct cfg80211_coalesce_rules *rule; | |
8550 | ||
8551 | if (!rdev->coalesce->n_rules) | |
8552 | return 0; | |
8553 | ||
8554 | nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE); | |
8555 | if (!nl_rules) | |
8556 | return -ENOBUFS; | |
8557 | ||
8558 | for (i = 0; i < rdev->coalesce->n_rules; i++) { | |
8559 | nl_rule = nla_nest_start(msg, i + 1); | |
8560 | if (!nl_rule) | |
8561 | return -ENOBUFS; | |
8562 | ||
8563 | rule = &rdev->coalesce->rules[i]; | |
8564 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY, | |
8565 | rule->delay)) | |
8566 | return -ENOBUFS; | |
8567 | ||
8568 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION, | |
8569 | rule->condition)) | |
8570 | return -ENOBUFS; | |
8571 | ||
8572 | nl_pats = nla_nest_start(msg, | |
8573 | NL80211_ATTR_COALESCE_RULE_PKT_PATTERN); | |
8574 | if (!nl_pats) | |
8575 | return -ENOBUFS; | |
8576 | ||
8577 | for (j = 0; j < rule->n_patterns; j++) { | |
8578 | nl_pat = nla_nest_start(msg, j + 1); | |
8579 | if (!nl_pat) | |
8580 | return -ENOBUFS; | |
8581 | pat_len = rule->patterns[j].pattern_len; | |
8582 | if (nla_put(msg, NL80211_PKTPAT_MASK, | |
8583 | DIV_ROUND_UP(pat_len, 8), | |
8584 | rule->patterns[j].mask) || | |
8585 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, | |
8586 | rule->patterns[j].pattern) || | |
8587 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
8588 | rule->patterns[j].pkt_offset)) | |
8589 | return -ENOBUFS; | |
8590 | nla_nest_end(msg, nl_pat); | |
8591 | } | |
8592 | nla_nest_end(msg, nl_pats); | |
8593 | nla_nest_end(msg, nl_rule); | |
8594 | } | |
8595 | nla_nest_end(msg, nl_rules); | |
8596 | ||
8597 | return 0; | |
8598 | } | |
8599 | ||
8600 | static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info) | |
8601 | { | |
8602 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8603 | struct sk_buff *msg; | |
8604 | void *hdr; | |
8605 | ||
8606 | if (!rdev->wiphy.coalesce) | |
8607 | return -EOPNOTSUPP; | |
8608 | ||
8609 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8610 | if (!msg) | |
8611 | return -ENOMEM; | |
8612 | ||
8613 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
8614 | NL80211_CMD_GET_COALESCE); | |
8615 | if (!hdr) | |
8616 | goto nla_put_failure; | |
8617 | ||
8618 | if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev)) | |
8619 | goto nla_put_failure; | |
8620 | ||
8621 | genlmsg_end(msg, hdr); | |
8622 | return genlmsg_reply(msg, info); | |
8623 | ||
8624 | nla_put_failure: | |
8625 | nlmsg_free(msg); | |
8626 | return -ENOBUFS; | |
8627 | } | |
8628 | ||
8629 | void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev) | |
8630 | { | |
8631 | struct cfg80211_coalesce *coalesce = rdev->coalesce; | |
8632 | int i, j; | |
8633 | struct cfg80211_coalesce_rules *rule; | |
8634 | ||
8635 | if (!coalesce) | |
8636 | return; | |
8637 | ||
8638 | for (i = 0; i < coalesce->n_rules; i++) { | |
8639 | rule = &coalesce->rules[i]; | |
8640 | for (j = 0; j < rule->n_patterns; j++) | |
8641 | kfree(rule->patterns[j].mask); | |
8642 | kfree(rule->patterns); | |
8643 | } | |
8644 | kfree(coalesce->rules); | |
8645 | kfree(coalesce); | |
8646 | rdev->coalesce = NULL; | |
8647 | } | |
8648 | ||
8649 | static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, | |
8650 | struct nlattr *rule, | |
8651 | struct cfg80211_coalesce_rules *new_rule) | |
8652 | { | |
8653 | int err, i; | |
8654 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
8655 | struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat; | |
8656 | int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; | |
8657 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; | |
8658 | ||
8659 | err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule), | |
8660 | nla_len(rule), nl80211_coalesce_policy); | |
8661 | if (err) | |
8662 | return err; | |
8663 | ||
8664 | if (tb[NL80211_ATTR_COALESCE_RULE_DELAY]) | |
8665 | new_rule->delay = | |
8666 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]); | |
8667 | if (new_rule->delay > coalesce->max_delay) | |
8668 | return -EINVAL; | |
8669 | ||
8670 | if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION]) | |
8671 | new_rule->condition = | |
8672 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]); | |
8673 | if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH && | |
8674 | new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH) | |
8675 | return -EINVAL; | |
8676 | ||
8677 | if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN]) | |
8678 | return -EINVAL; | |
8679 | ||
8680 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
8681 | rem) | |
8682 | n_patterns++; | |
8683 | if (n_patterns > coalesce->n_patterns) | |
8684 | return -EINVAL; | |
8685 | ||
8686 | new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]), | |
8687 | GFP_KERNEL); | |
8688 | if (!new_rule->patterns) | |
8689 | return -ENOMEM; | |
8690 | ||
8691 | new_rule->n_patterns = n_patterns; | |
8692 | i = 0; | |
8693 | ||
8694 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
8695 | rem) { | |
8696 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), | |
8697 | nla_len(pat), NULL); | |
8698 | if (!pat_tb[NL80211_PKTPAT_MASK] || | |
8699 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
8700 | return -EINVAL; | |
8701 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); | |
8702 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
8703 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) | |
8704 | return -EINVAL; | |
8705 | if (pat_len > coalesce->pattern_max_len || | |
8706 | pat_len < coalesce->pattern_min_len) | |
8707 | return -EINVAL; | |
8708 | ||
8709 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) | |
8710 | pkt_offset = 0; | |
8711 | else | |
8712 | pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]); | |
8713 | if (pkt_offset > coalesce->max_pkt_offset) | |
8714 | return -EINVAL; | |
8715 | new_rule->patterns[i].pkt_offset = pkt_offset; | |
8716 | ||
8717 | new_rule->patterns[i].mask = | |
8718 | kmalloc(mask_len + pat_len, GFP_KERNEL); | |
8719 | if (!new_rule->patterns[i].mask) | |
8720 | return -ENOMEM; | |
8721 | new_rule->patterns[i].pattern = | |
8722 | new_rule->patterns[i].mask + mask_len; | |
8723 | memcpy(new_rule->patterns[i].mask, | |
8724 | nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len); | |
8725 | new_rule->patterns[i].pattern_len = pat_len; | |
8726 | memcpy(new_rule->patterns[i].pattern, | |
8727 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len); | |
8728 | i++; | |
8729 | } | |
8730 | ||
8731 | return 0; | |
8732 | } | |
8733 | ||
8734 | static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) | |
8735 | { | |
8736 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8737 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
8738 | struct cfg80211_coalesce new_coalesce = {}; | |
8739 | struct cfg80211_coalesce *n_coalesce; | |
8740 | int err, rem_rule, n_rules = 0, i, j; | |
8741 | struct nlattr *rule; | |
8742 | struct cfg80211_coalesce_rules *tmp_rule; | |
8743 | ||
8744 | if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce) | |
8745 | return -EOPNOTSUPP; | |
8746 | ||
8747 | if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) { | |
8748 | cfg80211_rdev_free_coalesce(rdev); | |
8749 | rdev->ops->set_coalesce(&rdev->wiphy, NULL); | |
8750 | return 0; | |
8751 | } | |
8752 | ||
8753 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
8754 | rem_rule) | |
8755 | n_rules++; | |
8756 | if (n_rules > coalesce->n_rules) | |
8757 | return -EINVAL; | |
8758 | ||
8759 | new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]), | |
8760 | GFP_KERNEL); | |
8761 | if (!new_coalesce.rules) | |
8762 | return -ENOMEM; | |
8763 | ||
8764 | new_coalesce.n_rules = n_rules; | |
8765 | i = 0; | |
8766 | ||
8767 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
8768 | rem_rule) { | |
8769 | err = nl80211_parse_coalesce_rule(rdev, rule, | |
8770 | &new_coalesce.rules[i]); | |
8771 | if (err) | |
8772 | goto error; | |
8773 | ||
8774 | i++; | |
8775 | } | |
8776 | ||
8777 | err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce); | |
8778 | if (err) | |
8779 | goto error; | |
8780 | ||
8781 | n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL); | |
8782 | if (!n_coalesce) { | |
8783 | err = -ENOMEM; | |
8784 | goto error; | |
8785 | } | |
8786 | cfg80211_rdev_free_coalesce(rdev); | |
8787 | rdev->coalesce = n_coalesce; | |
8788 | ||
8789 | return 0; | |
8790 | error: | |
8791 | for (i = 0; i < new_coalesce.n_rules; i++) { | |
8792 | tmp_rule = &new_coalesce.rules[i]; | |
8793 | for (j = 0; j < tmp_rule->n_patterns; j++) | |
8794 | kfree(tmp_rule->patterns[j].mask); | |
8795 | kfree(tmp_rule->patterns); | |
8796 | } | |
8797 | kfree(new_coalesce.rules); | |
8798 | ||
8799 | return err; | |
8800 | } | |
8801 | ||
e5497d76 JB |
8802 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
8803 | { | |
8804 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8805 | struct net_device *dev = info->user_ptr[1]; | |
8806 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8807 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
8808 | struct cfg80211_gtk_rekey_data rekey_data; | |
8809 | int err; | |
8810 | ||
8811 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
8812 | return -EINVAL; | |
8813 | ||
8814 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
8815 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
8816 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
8817 | nl80211_rekey_policy); | |
8818 | if (err) | |
8819 | return err; | |
8820 | ||
8821 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
8822 | return -ERANGE; | |
8823 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
8824 | return -ERANGE; | |
8825 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
8826 | return -ERANGE; | |
8827 | ||
8828 | memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]), | |
8829 | NL80211_KEK_LEN); | |
8830 | memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]), | |
8831 | NL80211_KCK_LEN); | |
8832 | memcpy(rekey_data.replay_ctr, | |
8833 | nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]), | |
8834 | NL80211_REPLAY_CTR_LEN); | |
8835 | ||
8836 | wdev_lock(wdev); | |
8837 | if (!wdev->current_bss) { | |
8838 | err = -ENOTCONN; | |
8839 | goto out; | |
8840 | } | |
8841 | ||
8842 | if (!rdev->ops->set_rekey_data) { | |
8843 | err = -EOPNOTSUPP; | |
8844 | goto out; | |
8845 | } | |
8846 | ||
e35e4d28 | 8847 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
e5497d76 JB |
8848 | out: |
8849 | wdev_unlock(wdev); | |
8850 | return err; | |
8851 | } | |
8852 | ||
28946da7 JB |
8853 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
8854 | struct genl_info *info) | |
8855 | { | |
8856 | struct net_device *dev = info->user_ptr[1]; | |
8857 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8858 | ||
8859 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
8860 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
8861 | return -EINVAL; | |
8862 | ||
15e47304 | 8863 | if (wdev->ap_unexpected_nlportid) |
28946da7 JB |
8864 | return -EBUSY; |
8865 | ||
15e47304 | 8866 | wdev->ap_unexpected_nlportid = info->snd_portid; |
28946da7 JB |
8867 | return 0; |
8868 | } | |
8869 | ||
7f6cf311 JB |
8870 | static int nl80211_probe_client(struct sk_buff *skb, |
8871 | struct genl_info *info) | |
8872 | { | |
8873 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8874 | struct net_device *dev = info->user_ptr[1]; | |
8875 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
8876 | struct sk_buff *msg; | |
8877 | void *hdr; | |
8878 | const u8 *addr; | |
8879 | u64 cookie; | |
8880 | int err; | |
8881 | ||
8882 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
8883 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
8884 | return -EOPNOTSUPP; | |
8885 | ||
8886 | if (!info->attrs[NL80211_ATTR_MAC]) | |
8887 | return -EINVAL; | |
8888 | ||
8889 | if (!rdev->ops->probe_client) | |
8890 | return -EOPNOTSUPP; | |
8891 | ||
8892 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
8893 | if (!msg) | |
8894 | return -ENOMEM; | |
8895 | ||
15e47304 | 8896 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7f6cf311 | 8897 | NL80211_CMD_PROBE_CLIENT); |
cb35fba3 DC |
8898 | if (!hdr) { |
8899 | err = -ENOBUFS; | |
7f6cf311 JB |
8900 | goto free_msg; |
8901 | } | |
8902 | ||
8903 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8904 | ||
e35e4d28 | 8905 | err = rdev_probe_client(rdev, dev, addr, &cookie); |
7f6cf311 JB |
8906 | if (err) |
8907 | goto free_msg; | |
8908 | ||
9360ffd1 DM |
8909 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
8910 | goto nla_put_failure; | |
7f6cf311 JB |
8911 | |
8912 | genlmsg_end(msg, hdr); | |
8913 | ||
8914 | return genlmsg_reply(msg, info); | |
8915 | ||
8916 | nla_put_failure: | |
8917 | err = -ENOBUFS; | |
8918 | free_msg: | |
8919 | nlmsg_free(msg); | |
8920 | return err; | |
8921 | } | |
8922 | ||
5e760230 JB |
8923 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
8924 | { | |
8925 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
37c73b5f BG |
8926 | struct cfg80211_beacon_registration *reg, *nreg; |
8927 | int rv; | |
5e760230 JB |
8928 | |
8929 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
8930 | return -EOPNOTSUPP; | |
8931 | ||
37c73b5f BG |
8932 | nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); |
8933 | if (!nreg) | |
8934 | return -ENOMEM; | |
8935 | ||
8936 | /* First, check if already registered. */ | |
8937 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
8938 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
8939 | if (reg->nlportid == info->snd_portid) { | |
8940 | rv = -EALREADY; | |
8941 | goto out_err; | |
8942 | } | |
8943 | } | |
8944 | /* Add it to the list */ | |
8945 | nreg->nlportid = info->snd_portid; | |
8946 | list_add(&nreg->list, &rdev->beacon_registrations); | |
5e760230 | 8947 | |
37c73b5f | 8948 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
5e760230 JB |
8949 | |
8950 | return 0; | |
37c73b5f BG |
8951 | out_err: |
8952 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
8953 | kfree(nreg); | |
8954 | return rv; | |
5e760230 JB |
8955 | } |
8956 | ||
98104fde JB |
8957 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
8958 | { | |
8959 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8960 | struct wireless_dev *wdev = info->user_ptr[1]; | |
8961 | int err; | |
8962 | ||
8963 | if (!rdev->ops->start_p2p_device) | |
8964 | return -EOPNOTSUPP; | |
8965 | ||
8966 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
8967 | return -EOPNOTSUPP; | |
8968 | ||
8969 | if (wdev->p2p_started) | |
8970 | return 0; | |
8971 | ||
b6a55015 LC |
8972 | if (rfkill_blocked(rdev->rfkill)) |
8973 | return -ERFKILL; | |
98104fde | 8974 | |
eeb126e9 | 8975 | err = rdev_start_p2p_device(rdev, wdev); |
98104fde JB |
8976 | if (err) |
8977 | return err; | |
8978 | ||
8979 | wdev->p2p_started = true; | |
98104fde | 8980 | rdev->opencount++; |
98104fde JB |
8981 | |
8982 | return 0; | |
8983 | } | |
8984 | ||
8985 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
8986 | { | |
8987 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8988 | struct wireless_dev *wdev = info->user_ptr[1]; | |
8989 | ||
8990 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
8991 | return -EOPNOTSUPP; | |
8992 | ||
8993 | if (!rdev->ops->stop_p2p_device) | |
8994 | return -EOPNOTSUPP; | |
8995 | ||
f9f47529 | 8996 | cfg80211_stop_p2p_device(rdev, wdev); |
98104fde JB |
8997 | |
8998 | return 0; | |
8999 | } | |
9000 | ||
3713b4e3 JB |
9001 | static int nl80211_get_protocol_features(struct sk_buff *skb, |
9002 | struct genl_info *info) | |
9003 | { | |
9004 | void *hdr; | |
9005 | struct sk_buff *msg; | |
9006 | ||
9007 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9008 | if (!msg) | |
9009 | return -ENOMEM; | |
9010 | ||
9011 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
9012 | NL80211_CMD_GET_PROTOCOL_FEATURES); | |
9013 | if (!hdr) | |
9014 | goto nla_put_failure; | |
9015 | ||
9016 | if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES, | |
9017 | NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)) | |
9018 | goto nla_put_failure; | |
9019 | ||
9020 | genlmsg_end(msg, hdr); | |
9021 | return genlmsg_reply(msg, info); | |
9022 | ||
9023 | nla_put_failure: | |
9024 | kfree_skb(msg); | |
9025 | return -ENOBUFS; | |
9026 | } | |
9027 | ||
355199e0 JM |
9028 | static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) |
9029 | { | |
9030 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9031 | struct cfg80211_update_ft_ies_params ft_params; | |
9032 | struct net_device *dev = info->user_ptr[1]; | |
9033 | ||
9034 | if (!rdev->ops->update_ft_ies) | |
9035 | return -EOPNOTSUPP; | |
9036 | ||
9037 | if (!info->attrs[NL80211_ATTR_MDID] || | |
9038 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
9039 | return -EINVAL; | |
9040 | ||
9041 | memset(&ft_params, 0, sizeof(ft_params)); | |
9042 | ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]); | |
9043 | ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
9044 | ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
9045 | ||
9046 | return rdev_update_ft_ies(rdev, dev, &ft_params); | |
9047 | } | |
9048 | ||
5de17984 AS |
9049 | static int nl80211_crit_protocol_start(struct sk_buff *skb, |
9050 | struct genl_info *info) | |
9051 | { | |
9052 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9053 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9054 | enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; | |
9055 | u16 duration; | |
9056 | int ret; | |
9057 | ||
9058 | if (!rdev->ops->crit_proto_start) | |
9059 | return -EOPNOTSUPP; | |
9060 | ||
9061 | if (WARN_ON(!rdev->ops->crit_proto_stop)) | |
9062 | return -EINVAL; | |
9063 | ||
9064 | if (rdev->crit_proto_nlportid) | |
9065 | return -EBUSY; | |
9066 | ||
9067 | /* determine protocol if provided */ | |
9068 | if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) | |
9069 | proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); | |
9070 | ||
9071 | if (proto >= NUM_NL80211_CRIT_PROTO) | |
9072 | return -EINVAL; | |
9073 | ||
9074 | /* timeout must be provided */ | |
9075 | if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) | |
9076 | return -EINVAL; | |
9077 | ||
9078 | duration = | |
9079 | nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); | |
9080 | ||
9081 | if (duration > NL80211_CRIT_PROTO_MAX_DURATION) | |
9082 | return -ERANGE; | |
9083 | ||
9084 | ret = rdev_crit_proto_start(rdev, wdev, proto, duration); | |
9085 | if (!ret) | |
9086 | rdev->crit_proto_nlportid = info->snd_portid; | |
9087 | ||
9088 | return ret; | |
9089 | } | |
9090 | ||
9091 | static int nl80211_crit_protocol_stop(struct sk_buff *skb, | |
9092 | struct genl_info *info) | |
9093 | { | |
9094 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9095 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9096 | ||
9097 | if (!rdev->ops->crit_proto_stop) | |
9098 | return -EOPNOTSUPP; | |
9099 | ||
9100 | if (rdev->crit_proto_nlportid) { | |
9101 | rdev->crit_proto_nlportid = 0; | |
9102 | rdev_crit_proto_stop(rdev, wdev); | |
9103 | } | |
9104 | return 0; | |
9105 | } | |
9106 | ||
ad7e718c JB |
9107 | static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info) |
9108 | { | |
9109 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9110 | struct wireless_dev *wdev = | |
9111 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
9112 | int i, err; | |
9113 | u32 vid, subcmd; | |
9114 | ||
9115 | if (!rdev->wiphy.vendor_commands) | |
9116 | return -EOPNOTSUPP; | |
9117 | ||
9118 | if (IS_ERR(wdev)) { | |
9119 | err = PTR_ERR(wdev); | |
9120 | if (err != -EINVAL) | |
9121 | return err; | |
9122 | wdev = NULL; | |
9123 | } else if (wdev->wiphy != &rdev->wiphy) { | |
9124 | return -EINVAL; | |
9125 | } | |
9126 | ||
9127 | if (!info->attrs[NL80211_ATTR_VENDOR_ID] || | |
9128 | !info->attrs[NL80211_ATTR_VENDOR_SUBCMD]) | |
9129 | return -EINVAL; | |
9130 | ||
9131 | vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]); | |
9132 | subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]); | |
9133 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { | |
9134 | const struct wiphy_vendor_command *vcmd; | |
9135 | void *data = NULL; | |
9136 | int len = 0; | |
9137 | ||
9138 | vcmd = &rdev->wiphy.vendor_commands[i]; | |
9139 | ||
9140 | if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) | |
9141 | continue; | |
9142 | ||
9143 | if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | | |
9144 | WIPHY_VENDOR_CMD_NEED_NETDEV)) { | |
9145 | if (!wdev) | |
9146 | return -EINVAL; | |
9147 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && | |
9148 | !wdev->netdev) | |
9149 | return -EINVAL; | |
9150 | ||
9151 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { | |
9152 | if (wdev->netdev && | |
9153 | !netif_running(wdev->netdev)) | |
9154 | return -ENETDOWN; | |
9155 | if (!wdev->netdev && !wdev->p2p_started) | |
9156 | return -ENETDOWN; | |
9157 | } | |
9158 | } else { | |
9159 | wdev = NULL; | |
9160 | } | |
9161 | ||
9162 | if (info->attrs[NL80211_ATTR_VENDOR_DATA]) { | |
9163 | data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
9164 | len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
9165 | } | |
9166 | ||
9167 | rdev->cur_cmd_info = info; | |
9168 | err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev, | |
9169 | data, len); | |
9170 | rdev->cur_cmd_info = NULL; | |
9171 | return err; | |
9172 | } | |
9173 | ||
9174 | return -EOPNOTSUPP; | |
9175 | } | |
9176 | ||
9177 | struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, | |
9178 | enum nl80211_commands cmd, | |
9179 | enum nl80211_attrs attr, | |
9180 | int approxlen) | |
9181 | { | |
f26cbf40 | 9182 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ad7e718c JB |
9183 | |
9184 | if (WARN_ON(!rdev->cur_cmd_info)) | |
9185 | return NULL; | |
9186 | ||
9187 | return __cfg80211_alloc_vendor_skb(rdev, approxlen, | |
9188 | rdev->cur_cmd_info->snd_portid, | |
9189 | rdev->cur_cmd_info->snd_seq, | |
567ffc35 | 9190 | cmd, attr, NULL, GFP_KERNEL); |
ad7e718c JB |
9191 | } |
9192 | EXPORT_SYMBOL(__cfg80211_alloc_reply_skb); | |
9193 | ||
9194 | int cfg80211_vendor_cmd_reply(struct sk_buff *skb) | |
9195 | { | |
9196 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
9197 | void *hdr = ((void **)skb->cb)[1]; | |
9198 | struct nlattr *data = ((void **)skb->cb)[2]; | |
9199 | ||
9200 | if (WARN_ON(!rdev->cur_cmd_info)) { | |
9201 | kfree_skb(skb); | |
9202 | return -EINVAL; | |
9203 | } | |
9204 | ||
9205 | nla_nest_end(skb, data); | |
9206 | genlmsg_end(skb, hdr); | |
9207 | return genlmsg_reply(skb, rdev->cur_cmd_info); | |
9208 | } | |
9209 | EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply); | |
9210 | ||
9211 | ||
fa9ffc74 KP |
9212 | static int nl80211_set_qos_map(struct sk_buff *skb, |
9213 | struct genl_info *info) | |
9214 | { | |
9215 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9216 | struct cfg80211_qos_map *qos_map = NULL; | |
9217 | struct net_device *dev = info->user_ptr[1]; | |
9218 | u8 *pos, len, num_des, des_len, des; | |
9219 | int ret; | |
9220 | ||
9221 | if (!rdev->ops->set_qos_map) | |
9222 | return -EOPNOTSUPP; | |
9223 | ||
9224 | if (info->attrs[NL80211_ATTR_QOS_MAP]) { | |
9225 | pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]); | |
9226 | len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]); | |
9227 | ||
9228 | if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN || | |
9229 | len > IEEE80211_QOS_MAP_LEN_MAX) | |
9230 | return -EINVAL; | |
9231 | ||
9232 | qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL); | |
9233 | if (!qos_map) | |
9234 | return -ENOMEM; | |
9235 | ||
9236 | num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1; | |
9237 | if (num_des) { | |
9238 | des_len = num_des * | |
9239 | sizeof(struct cfg80211_dscp_exception); | |
9240 | memcpy(qos_map->dscp_exception, pos, des_len); | |
9241 | qos_map->num_des = num_des; | |
9242 | for (des = 0; des < num_des; des++) { | |
9243 | if (qos_map->dscp_exception[des].up > 7) { | |
9244 | kfree(qos_map); | |
9245 | return -EINVAL; | |
9246 | } | |
9247 | } | |
9248 | pos += des_len; | |
9249 | } | |
9250 | memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN); | |
9251 | } | |
9252 | ||
9253 | wdev_lock(dev->ieee80211_ptr); | |
9254 | ret = nl80211_key_allowed(dev->ieee80211_ptr); | |
9255 | if (!ret) | |
9256 | ret = rdev_set_qos_map(rdev, dev, qos_map); | |
9257 | wdev_unlock(dev->ieee80211_ptr); | |
9258 | ||
9259 | kfree(qos_map); | |
9260 | return ret; | |
9261 | } | |
9262 | ||
4c476991 JB |
9263 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
9264 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
9265 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
9266 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
9267 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
9268 | NL80211_FLAG_CHECK_NETDEV_UP) | |
1bf614ef | 9269 | #define NL80211_FLAG_NEED_WDEV 0x10 |
98104fde | 9270 | /* If a netdev is associated, it must be UP, P2P must be started */ |
1bf614ef JB |
9271 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
9272 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 | 9273 | |
f84f771d | 9274 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
9275 | struct genl_info *info) |
9276 | { | |
9277 | struct cfg80211_registered_device *rdev; | |
89a54e48 | 9278 | struct wireless_dev *wdev; |
4c476991 | 9279 | struct net_device *dev; |
4c476991 JB |
9280 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
9281 | ||
9282 | if (rtnl) | |
9283 | rtnl_lock(); | |
9284 | ||
9285 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4f7eff10 | 9286 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
4c476991 JB |
9287 | if (IS_ERR(rdev)) { |
9288 | if (rtnl) | |
9289 | rtnl_unlock(); | |
9290 | return PTR_ERR(rdev); | |
9291 | } | |
9292 | info->user_ptr[0] = rdev; | |
1bf614ef JB |
9293 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
9294 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
5fe231e8 JB |
9295 | ASSERT_RTNL(); |
9296 | ||
89a54e48 JB |
9297 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), |
9298 | info->attrs); | |
9299 | if (IS_ERR(wdev)) { | |
4c476991 JB |
9300 | if (rtnl) |
9301 | rtnl_unlock(); | |
89a54e48 | 9302 | return PTR_ERR(wdev); |
4c476991 | 9303 | } |
89a54e48 | 9304 | |
89a54e48 | 9305 | dev = wdev->netdev; |
f26cbf40 | 9306 | rdev = wiphy_to_rdev(wdev->wiphy); |
89a54e48 | 9307 | |
1bf614ef JB |
9308 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
9309 | if (!dev) { | |
1bf614ef JB |
9310 | if (rtnl) |
9311 | rtnl_unlock(); | |
9312 | return -EINVAL; | |
9313 | } | |
9314 | ||
9315 | info->user_ptr[1] = dev; | |
9316 | } else { | |
9317 | info->user_ptr[1] = wdev; | |
41265714 | 9318 | } |
1bf614ef JB |
9319 | |
9320 | if (dev) { | |
9321 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
9322 | !netif_running(dev)) { | |
1bf614ef JB |
9323 | if (rtnl) |
9324 | rtnl_unlock(); | |
9325 | return -ENETDOWN; | |
9326 | } | |
9327 | ||
9328 | dev_hold(dev); | |
98104fde JB |
9329 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
9330 | if (!wdev->p2p_started) { | |
98104fde JB |
9331 | if (rtnl) |
9332 | rtnl_unlock(); | |
9333 | return -ENETDOWN; | |
9334 | } | |
41265714 | 9335 | } |
89a54e48 | 9336 | |
4c476991 | 9337 | info->user_ptr[0] = rdev; |
4c476991 JB |
9338 | } |
9339 | ||
9340 | return 0; | |
9341 | } | |
9342 | ||
f84f771d | 9343 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
9344 | struct genl_info *info) |
9345 | { | |
1bf614ef JB |
9346 | if (info->user_ptr[1]) { |
9347 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
9348 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9349 | ||
9350 | if (wdev->netdev) | |
9351 | dev_put(wdev->netdev); | |
9352 | } else { | |
9353 | dev_put(info->user_ptr[1]); | |
9354 | } | |
9355 | } | |
4c476991 JB |
9356 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
9357 | rtnl_unlock(); | |
9358 | } | |
9359 | ||
4534de83 | 9360 | static const struct genl_ops nl80211_ops[] = { |
55682965 JB |
9361 | { |
9362 | .cmd = NL80211_CMD_GET_WIPHY, | |
9363 | .doit = nl80211_get_wiphy, | |
9364 | .dumpit = nl80211_dump_wiphy, | |
86e8cf98 | 9365 | .done = nl80211_dump_wiphy_done, |
55682965 JB |
9366 | .policy = nl80211_policy, |
9367 | /* can be retrieved by unprivileged users */ | |
5fe231e8 JB |
9368 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9369 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
9370 | }, |
9371 | { | |
9372 | .cmd = NL80211_CMD_SET_WIPHY, | |
9373 | .doit = nl80211_set_wiphy, | |
9374 | .policy = nl80211_policy, | |
9375 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 9376 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
9377 | }, |
9378 | { | |
9379 | .cmd = NL80211_CMD_GET_INTERFACE, | |
9380 | .doit = nl80211_get_interface, | |
9381 | .dumpit = nl80211_dump_interface, | |
9382 | .policy = nl80211_policy, | |
9383 | /* can be retrieved by unprivileged users */ | |
5fe231e8 JB |
9384 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
9385 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
9386 | }, |
9387 | { | |
9388 | .cmd = NL80211_CMD_SET_INTERFACE, | |
9389 | .doit = nl80211_set_interface, | |
9390 | .policy = nl80211_policy, | |
9391 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9392 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9393 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
9394 | }, |
9395 | { | |
9396 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
9397 | .doit = nl80211_new_interface, | |
9398 | .policy = nl80211_policy, | |
9399 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9400 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9401 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
9402 | }, |
9403 | { | |
9404 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
9405 | .doit = nl80211_del_interface, | |
9406 | .policy = nl80211_policy, | |
41ade00f | 9407 | .flags = GENL_ADMIN_PERM, |
84efbb84 | 9408 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 9409 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
9410 | }, |
9411 | { | |
9412 | .cmd = NL80211_CMD_GET_KEY, | |
9413 | .doit = nl80211_get_key, | |
9414 | .policy = nl80211_policy, | |
9415 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 9416 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9417 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
9418 | }, |
9419 | { | |
9420 | .cmd = NL80211_CMD_SET_KEY, | |
9421 | .doit = nl80211_set_key, | |
9422 | .policy = nl80211_policy, | |
9423 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9424 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9425 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
9426 | }, |
9427 | { | |
9428 | .cmd = NL80211_CMD_NEW_KEY, | |
9429 | .doit = nl80211_new_key, | |
9430 | .policy = nl80211_policy, | |
9431 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9432 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9433 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
9434 | }, |
9435 | { | |
9436 | .cmd = NL80211_CMD_DEL_KEY, | |
9437 | .doit = nl80211_del_key, | |
9438 | .policy = nl80211_policy, | |
55682965 | 9439 | .flags = GENL_ADMIN_PERM, |
41265714 | 9440 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9441 | NL80211_FLAG_NEED_RTNL, |
55682965 | 9442 | }, |
ed1b6cc7 JB |
9443 | { |
9444 | .cmd = NL80211_CMD_SET_BEACON, | |
9445 | .policy = nl80211_policy, | |
9446 | .flags = GENL_ADMIN_PERM, | |
8860020e | 9447 | .doit = nl80211_set_beacon, |
2b5f8b0b | 9448 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9449 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
9450 | }, |
9451 | { | |
8860020e | 9452 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
9453 | .policy = nl80211_policy, |
9454 | .flags = GENL_ADMIN_PERM, | |
8860020e | 9455 | .doit = nl80211_start_ap, |
2b5f8b0b | 9456 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9457 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
9458 | }, |
9459 | { | |
8860020e | 9460 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
9461 | .policy = nl80211_policy, |
9462 | .flags = GENL_ADMIN_PERM, | |
8860020e | 9463 | .doit = nl80211_stop_ap, |
2b5f8b0b | 9464 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9465 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 9466 | }, |
5727ef1b JB |
9467 | { |
9468 | .cmd = NL80211_CMD_GET_STATION, | |
9469 | .doit = nl80211_get_station, | |
2ec600d6 | 9470 | .dumpit = nl80211_dump_station, |
5727ef1b | 9471 | .policy = nl80211_policy, |
4c476991 JB |
9472 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9473 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
9474 | }, |
9475 | { | |
9476 | .cmd = NL80211_CMD_SET_STATION, | |
9477 | .doit = nl80211_set_station, | |
9478 | .policy = nl80211_policy, | |
9479 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 9480 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9481 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
9482 | }, |
9483 | { | |
9484 | .cmd = NL80211_CMD_NEW_STATION, | |
9485 | .doit = nl80211_new_station, | |
9486 | .policy = nl80211_policy, | |
9487 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9488 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9489 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
9490 | }, |
9491 | { | |
9492 | .cmd = NL80211_CMD_DEL_STATION, | |
9493 | .doit = nl80211_del_station, | |
9494 | .policy = nl80211_policy, | |
2ec600d6 | 9495 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 9496 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9497 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
9498 | }, |
9499 | { | |
9500 | .cmd = NL80211_CMD_GET_MPATH, | |
9501 | .doit = nl80211_get_mpath, | |
9502 | .dumpit = nl80211_dump_mpath, | |
9503 | .policy = nl80211_policy, | |
9504 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9505 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9506 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
9507 | }, |
9508 | { | |
9509 | .cmd = NL80211_CMD_SET_MPATH, | |
9510 | .doit = nl80211_set_mpath, | |
9511 | .policy = nl80211_policy, | |
9512 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9513 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9514 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
9515 | }, |
9516 | { | |
9517 | .cmd = NL80211_CMD_NEW_MPATH, | |
9518 | .doit = nl80211_new_mpath, | |
9519 | .policy = nl80211_policy, | |
9520 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9521 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9522 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
9523 | }, |
9524 | { | |
9525 | .cmd = NL80211_CMD_DEL_MPATH, | |
9526 | .doit = nl80211_del_mpath, | |
9527 | .policy = nl80211_policy, | |
9f1ba906 | 9528 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 9529 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9530 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
9531 | }, |
9532 | { | |
9533 | .cmd = NL80211_CMD_SET_BSS, | |
9534 | .doit = nl80211_set_bss, | |
9535 | .policy = nl80211_policy, | |
b2e1b302 | 9536 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 9537 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9538 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 9539 | }, |
f130347c LR |
9540 | { |
9541 | .cmd = NL80211_CMD_GET_REG, | |
9542 | .doit = nl80211_get_reg, | |
9543 | .policy = nl80211_policy, | |
5fe231e8 | 9544 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
f130347c LR |
9545 | /* can be retrieved by unprivileged users */ |
9546 | }, | |
b2e1b302 LR |
9547 | { |
9548 | .cmd = NL80211_CMD_SET_REG, | |
9549 | .doit = nl80211_set_reg, | |
9550 | .policy = nl80211_policy, | |
9551 | .flags = GENL_ADMIN_PERM, | |
5fe231e8 | 9552 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
b2e1b302 LR |
9553 | }, |
9554 | { | |
9555 | .cmd = NL80211_CMD_REQ_SET_REG, | |
9556 | .doit = nl80211_req_set_reg, | |
9557 | .policy = nl80211_policy, | |
93da9cc1 | 9558 | .flags = GENL_ADMIN_PERM, |
9559 | }, | |
9560 | { | |
24bdd9f4 JC |
9561 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
9562 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 9563 | .policy = nl80211_policy, |
9564 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 9565 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9566 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 9567 | }, |
9568 | { | |
24bdd9f4 JC |
9569 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
9570 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 9571 | .policy = nl80211_policy, |
9aed3cc1 | 9572 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 9573 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9574 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 9575 | }, |
2a519311 JB |
9576 | { |
9577 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
9578 | .doit = nl80211_trigger_scan, | |
9579 | .policy = nl80211_policy, | |
9580 | .flags = GENL_ADMIN_PERM, | |
fd014284 | 9581 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 9582 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
9583 | }, |
9584 | { | |
9585 | .cmd = NL80211_CMD_GET_SCAN, | |
9586 | .policy = nl80211_policy, | |
9587 | .dumpit = nl80211_dump_scan, | |
9588 | }, | |
807f8a8c LC |
9589 | { |
9590 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
9591 | .doit = nl80211_start_sched_scan, | |
9592 | .policy = nl80211_policy, | |
9593 | .flags = GENL_ADMIN_PERM, | |
9594 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9595 | NL80211_FLAG_NEED_RTNL, | |
9596 | }, | |
9597 | { | |
9598 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
9599 | .doit = nl80211_stop_sched_scan, | |
9600 | .policy = nl80211_policy, | |
9601 | .flags = GENL_ADMIN_PERM, | |
9602 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9603 | NL80211_FLAG_NEED_RTNL, | |
9604 | }, | |
636a5d36 JM |
9605 | { |
9606 | .cmd = NL80211_CMD_AUTHENTICATE, | |
9607 | .doit = nl80211_authenticate, | |
9608 | .policy = nl80211_policy, | |
9609 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9610 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9611 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
9612 | }, |
9613 | { | |
9614 | .cmd = NL80211_CMD_ASSOCIATE, | |
9615 | .doit = nl80211_associate, | |
9616 | .policy = nl80211_policy, | |
9617 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9618 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9619 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
9620 | }, |
9621 | { | |
9622 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
9623 | .doit = nl80211_deauthenticate, | |
9624 | .policy = nl80211_policy, | |
9625 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9626 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9627 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
9628 | }, |
9629 | { | |
9630 | .cmd = NL80211_CMD_DISASSOCIATE, | |
9631 | .doit = nl80211_disassociate, | |
9632 | .policy = nl80211_policy, | |
9633 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9634 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9635 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 9636 | }, |
04a773ad JB |
9637 | { |
9638 | .cmd = NL80211_CMD_JOIN_IBSS, | |
9639 | .doit = nl80211_join_ibss, | |
9640 | .policy = nl80211_policy, | |
9641 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9642 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9643 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
9644 | }, |
9645 | { | |
9646 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
9647 | .doit = nl80211_leave_ibss, | |
9648 | .policy = nl80211_policy, | |
9649 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9650 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9651 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 9652 | }, |
aff89a9b JB |
9653 | #ifdef CONFIG_NL80211_TESTMODE |
9654 | { | |
9655 | .cmd = NL80211_CMD_TESTMODE, | |
9656 | .doit = nl80211_testmode_do, | |
71063f0e | 9657 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
9658 | .policy = nl80211_policy, |
9659 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9660 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9661 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
9662 | }, |
9663 | #endif | |
b23aa676 SO |
9664 | { |
9665 | .cmd = NL80211_CMD_CONNECT, | |
9666 | .doit = nl80211_connect, | |
9667 | .policy = nl80211_policy, | |
9668 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9669 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9670 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
9671 | }, |
9672 | { | |
9673 | .cmd = NL80211_CMD_DISCONNECT, | |
9674 | .doit = nl80211_disconnect, | |
9675 | .policy = nl80211_policy, | |
9676 | .flags = GENL_ADMIN_PERM, | |
41265714 | 9677 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9678 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 9679 | }, |
463d0183 JB |
9680 | { |
9681 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
9682 | .doit = nl80211_wiphy_netns, | |
9683 | .policy = nl80211_policy, | |
9684 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9685 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
9686 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 9687 | }, |
61fa713c HS |
9688 | { |
9689 | .cmd = NL80211_CMD_GET_SURVEY, | |
9690 | .policy = nl80211_policy, | |
9691 | .dumpit = nl80211_dump_survey, | |
9692 | }, | |
67fbb16b SO |
9693 | { |
9694 | .cmd = NL80211_CMD_SET_PMKSA, | |
9695 | .doit = nl80211_setdel_pmksa, | |
9696 | .policy = nl80211_policy, | |
9697 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 9698 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9699 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
9700 | }, |
9701 | { | |
9702 | .cmd = NL80211_CMD_DEL_PMKSA, | |
9703 | .doit = nl80211_setdel_pmksa, | |
9704 | .policy = nl80211_policy, | |
9705 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 9706 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9707 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
9708 | }, |
9709 | { | |
9710 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
9711 | .doit = nl80211_flush_pmksa, | |
9712 | .policy = nl80211_policy, | |
9713 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 9714 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 9715 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 9716 | }, |
9588bbd5 JM |
9717 | { |
9718 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
9719 | .doit = nl80211_remain_on_channel, | |
9720 | .policy = nl80211_policy, | |
9721 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 9722 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 9723 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
9724 | }, |
9725 | { | |
9726 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
9727 | .doit = nl80211_cancel_remain_on_channel, | |
9728 | .policy = nl80211_policy, | |
9729 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 9730 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 9731 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 9732 | }, |
13ae75b1 JM |
9733 | { |
9734 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
9735 | .doit = nl80211_set_tx_bitrate_mask, | |
9736 | .policy = nl80211_policy, | |
9737 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9738 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9739 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 9740 | }, |
026331c4 | 9741 | { |
2e161f78 JB |
9742 | .cmd = NL80211_CMD_REGISTER_FRAME, |
9743 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
9744 | .policy = nl80211_policy, |
9745 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 9746 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 9747 | NL80211_FLAG_NEED_RTNL, |
026331c4 JM |
9748 | }, |
9749 | { | |
2e161f78 JB |
9750 | .cmd = NL80211_CMD_FRAME, |
9751 | .doit = nl80211_tx_mgmt, | |
026331c4 | 9752 | .policy = nl80211_policy, |
f7ca38df | 9753 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 9754 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
f7ca38df JB |
9755 | NL80211_FLAG_NEED_RTNL, |
9756 | }, | |
9757 | { | |
9758 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
9759 | .doit = nl80211_tx_mgmt_cancel_wait, | |
9760 | .policy = nl80211_policy, | |
026331c4 | 9761 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 9762 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 9763 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 9764 | }, |
ffb9eb3d KV |
9765 | { |
9766 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
9767 | .doit = nl80211_set_power_save, | |
9768 | .policy = nl80211_policy, | |
9769 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9770 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9771 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
9772 | }, |
9773 | { | |
9774 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
9775 | .doit = nl80211_get_power_save, | |
9776 | .policy = nl80211_policy, | |
9777 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
9778 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9779 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 9780 | }, |
d6dc1a38 JO |
9781 | { |
9782 | .cmd = NL80211_CMD_SET_CQM, | |
9783 | .doit = nl80211_set_cqm, | |
9784 | .policy = nl80211_policy, | |
9785 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9786 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9787 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 9788 | }, |
f444de05 JB |
9789 | { |
9790 | .cmd = NL80211_CMD_SET_CHANNEL, | |
9791 | .doit = nl80211_set_channel, | |
9792 | .policy = nl80211_policy, | |
9793 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
9794 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9795 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 9796 | }, |
e8347eba BJ |
9797 | { |
9798 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
9799 | .doit = nl80211_set_wds_peer, | |
9800 | .policy = nl80211_policy, | |
9801 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
9802 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
9803 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 9804 | }, |
29cbe68c JB |
9805 | { |
9806 | .cmd = NL80211_CMD_JOIN_MESH, | |
9807 | .doit = nl80211_join_mesh, | |
9808 | .policy = nl80211_policy, | |
9809 | .flags = GENL_ADMIN_PERM, | |
9810 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9811 | NL80211_FLAG_NEED_RTNL, | |
9812 | }, | |
9813 | { | |
9814 | .cmd = NL80211_CMD_LEAVE_MESH, | |
9815 | .doit = nl80211_leave_mesh, | |
9816 | .policy = nl80211_policy, | |
9817 | .flags = GENL_ADMIN_PERM, | |
9818 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9819 | NL80211_FLAG_NEED_RTNL, | |
9820 | }, | |
dfb89c56 | 9821 | #ifdef CONFIG_PM |
ff1b6e69 JB |
9822 | { |
9823 | .cmd = NL80211_CMD_GET_WOWLAN, | |
9824 | .doit = nl80211_get_wowlan, | |
9825 | .policy = nl80211_policy, | |
9826 | /* can be retrieved by unprivileged users */ | |
9827 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
9828 | NL80211_FLAG_NEED_RTNL, | |
9829 | }, | |
9830 | { | |
9831 | .cmd = NL80211_CMD_SET_WOWLAN, | |
9832 | .doit = nl80211_set_wowlan, | |
9833 | .policy = nl80211_policy, | |
9834 | .flags = GENL_ADMIN_PERM, | |
9835 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
9836 | NL80211_FLAG_NEED_RTNL, | |
9837 | }, | |
dfb89c56 | 9838 | #endif |
e5497d76 JB |
9839 | { |
9840 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
9841 | .doit = nl80211_set_rekey_data, | |
9842 | .policy = nl80211_policy, | |
9843 | .flags = GENL_ADMIN_PERM, | |
9844 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9845 | NL80211_FLAG_NEED_RTNL, | |
9846 | }, | |
109086ce AN |
9847 | { |
9848 | .cmd = NL80211_CMD_TDLS_MGMT, | |
9849 | .doit = nl80211_tdls_mgmt, | |
9850 | .policy = nl80211_policy, | |
9851 | .flags = GENL_ADMIN_PERM, | |
9852 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9853 | NL80211_FLAG_NEED_RTNL, | |
9854 | }, | |
9855 | { | |
9856 | .cmd = NL80211_CMD_TDLS_OPER, | |
9857 | .doit = nl80211_tdls_oper, | |
9858 | .policy = nl80211_policy, | |
9859 | .flags = GENL_ADMIN_PERM, | |
9860 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9861 | NL80211_FLAG_NEED_RTNL, | |
9862 | }, | |
28946da7 JB |
9863 | { |
9864 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
9865 | .doit = nl80211_register_unexpected_frame, | |
9866 | .policy = nl80211_policy, | |
9867 | .flags = GENL_ADMIN_PERM, | |
9868 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
9869 | NL80211_FLAG_NEED_RTNL, | |
9870 | }, | |
7f6cf311 JB |
9871 | { |
9872 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
9873 | .doit = nl80211_probe_client, | |
9874 | .policy = nl80211_policy, | |
9875 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 9876 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
9877 | NL80211_FLAG_NEED_RTNL, |
9878 | }, | |
5e760230 JB |
9879 | { |
9880 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
9881 | .doit = nl80211_register_beacons, | |
9882 | .policy = nl80211_policy, | |
9883 | .flags = GENL_ADMIN_PERM, | |
9884 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
9885 | NL80211_FLAG_NEED_RTNL, | |
9886 | }, | |
1d9d9213 SW |
9887 | { |
9888 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
9889 | .doit = nl80211_set_noack_map, | |
9890 | .policy = nl80211_policy, | |
9891 | .flags = GENL_ADMIN_PERM, | |
9892 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
9893 | NL80211_FLAG_NEED_RTNL, | |
9894 | }, | |
98104fde JB |
9895 | { |
9896 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
9897 | .doit = nl80211_start_p2p_device, | |
9898 | .policy = nl80211_policy, | |
9899 | .flags = GENL_ADMIN_PERM, | |
9900 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
9901 | NL80211_FLAG_NEED_RTNL, | |
9902 | }, | |
9903 | { | |
9904 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
9905 | .doit = nl80211_stop_p2p_device, | |
9906 | .policy = nl80211_policy, | |
9907 | .flags = GENL_ADMIN_PERM, | |
9908 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
9909 | NL80211_FLAG_NEED_RTNL, | |
9910 | }, | |
f4e583c8 AQ |
9911 | { |
9912 | .cmd = NL80211_CMD_SET_MCAST_RATE, | |
9913 | .doit = nl80211_set_mcast_rate, | |
77765eaf VT |
9914 | .policy = nl80211_policy, |
9915 | .flags = GENL_ADMIN_PERM, | |
9916 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
9917 | NL80211_FLAG_NEED_RTNL, | |
9918 | }, | |
9919 | { | |
9920 | .cmd = NL80211_CMD_SET_MAC_ACL, | |
9921 | .doit = nl80211_set_mac_acl, | |
f4e583c8 AQ |
9922 | .policy = nl80211_policy, |
9923 | .flags = GENL_ADMIN_PERM, | |
9924 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
9925 | NL80211_FLAG_NEED_RTNL, | |
9926 | }, | |
04f39047 SW |
9927 | { |
9928 | .cmd = NL80211_CMD_RADAR_DETECT, | |
9929 | .doit = nl80211_start_radar_detection, | |
9930 | .policy = nl80211_policy, | |
9931 | .flags = GENL_ADMIN_PERM, | |
9932 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9933 | NL80211_FLAG_NEED_RTNL, | |
9934 | }, | |
3713b4e3 JB |
9935 | { |
9936 | .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES, | |
9937 | .doit = nl80211_get_protocol_features, | |
9938 | .policy = nl80211_policy, | |
9939 | }, | |
355199e0 JM |
9940 | { |
9941 | .cmd = NL80211_CMD_UPDATE_FT_IES, | |
9942 | .doit = nl80211_update_ft_ies, | |
9943 | .policy = nl80211_policy, | |
9944 | .flags = GENL_ADMIN_PERM, | |
9945 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9946 | NL80211_FLAG_NEED_RTNL, | |
9947 | }, | |
5de17984 AS |
9948 | { |
9949 | .cmd = NL80211_CMD_CRIT_PROTOCOL_START, | |
9950 | .doit = nl80211_crit_protocol_start, | |
9951 | .policy = nl80211_policy, | |
9952 | .flags = GENL_ADMIN_PERM, | |
9953 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
9954 | NL80211_FLAG_NEED_RTNL, | |
9955 | }, | |
9956 | { | |
9957 | .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, | |
9958 | .doit = nl80211_crit_protocol_stop, | |
9959 | .policy = nl80211_policy, | |
9960 | .flags = GENL_ADMIN_PERM, | |
9961 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
9962 | NL80211_FLAG_NEED_RTNL, | |
be29b99a AK |
9963 | }, |
9964 | { | |
9965 | .cmd = NL80211_CMD_GET_COALESCE, | |
9966 | .doit = nl80211_get_coalesce, | |
9967 | .policy = nl80211_policy, | |
9968 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
9969 | NL80211_FLAG_NEED_RTNL, | |
9970 | }, | |
9971 | { | |
9972 | .cmd = NL80211_CMD_SET_COALESCE, | |
9973 | .doit = nl80211_set_coalesce, | |
9974 | .policy = nl80211_policy, | |
9975 | .flags = GENL_ADMIN_PERM, | |
9976 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
9977 | NL80211_FLAG_NEED_RTNL, | |
16ef1fe2 SW |
9978 | }, |
9979 | { | |
9980 | .cmd = NL80211_CMD_CHANNEL_SWITCH, | |
9981 | .doit = nl80211_channel_switch, | |
9982 | .policy = nl80211_policy, | |
9983 | .flags = GENL_ADMIN_PERM, | |
9984 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
9985 | NL80211_FLAG_NEED_RTNL, | |
9986 | }, | |
ad7e718c JB |
9987 | { |
9988 | .cmd = NL80211_CMD_VENDOR, | |
9989 | .doit = nl80211_vendor_cmd, | |
9990 | .policy = nl80211_policy, | |
9991 | .flags = GENL_ADMIN_PERM, | |
9992 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
9993 | NL80211_FLAG_NEED_RTNL, | |
9994 | }, | |
fa9ffc74 KP |
9995 | { |
9996 | .cmd = NL80211_CMD_SET_QOS_MAP, | |
9997 | .doit = nl80211_set_qos_map, | |
9998 | .policy = nl80211_policy, | |
9999 | .flags = GENL_ADMIN_PERM, | |
10000 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10001 | NL80211_FLAG_NEED_RTNL, | |
10002 | }, | |
55682965 | 10003 | }; |
9588bbd5 | 10004 | |
55682965 JB |
10005 | /* notification functions */ |
10006 | ||
10007 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
10008 | { | |
10009 | struct sk_buff *msg; | |
86e8cf98 | 10010 | struct nl80211_dump_wiphy_state state = {}; |
55682965 | 10011 | |
fd2120ca | 10012 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
10013 | if (!msg) |
10014 | return; | |
10015 | ||
86e8cf98 | 10016 | if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) { |
55682965 JB |
10017 | nlmsg_free(msg); |
10018 | return; | |
10019 | } | |
10020 | ||
68eb5503 | 10021 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10022 | NL80211_MCGRP_CONFIG, GFP_KERNEL); |
55682965 JB |
10023 | } |
10024 | ||
362a415d JB |
10025 | static int nl80211_add_scan_req(struct sk_buff *msg, |
10026 | struct cfg80211_registered_device *rdev) | |
10027 | { | |
10028 | struct cfg80211_scan_request *req = rdev->scan_req; | |
10029 | struct nlattr *nest; | |
10030 | int i; | |
10031 | ||
10032 | if (WARN_ON(!req)) | |
10033 | return 0; | |
10034 | ||
10035 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
10036 | if (!nest) | |
10037 | goto nla_put_failure; | |
9360ffd1 DM |
10038 | for (i = 0; i < req->n_ssids; i++) { |
10039 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
10040 | goto nla_put_failure; | |
10041 | } | |
362a415d JB |
10042 | nla_nest_end(msg, nest); |
10043 | ||
10044 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
10045 | if (!nest) | |
10046 | goto nla_put_failure; | |
9360ffd1 DM |
10047 | for (i = 0; i < req->n_channels; i++) { |
10048 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
10049 | goto nla_put_failure; | |
10050 | } | |
362a415d JB |
10051 | nla_nest_end(msg, nest); |
10052 | ||
9360ffd1 DM |
10053 | if (req->ie && |
10054 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
10055 | goto nla_put_failure; | |
362a415d | 10056 | |
ae917c9f JB |
10057 | if (req->flags && |
10058 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags)) | |
10059 | goto nla_put_failure; | |
ed473771 | 10060 | |
362a415d JB |
10061 | return 0; |
10062 | nla_put_failure: | |
10063 | return -ENOBUFS; | |
10064 | } | |
10065 | ||
a538e2d5 JB |
10066 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
10067 | struct cfg80211_registered_device *rdev, | |
fd014284 | 10068 | struct wireless_dev *wdev, |
15e47304 | 10069 | u32 portid, u32 seq, int flags, |
a538e2d5 | 10070 | u32 cmd) |
2a519311 JB |
10071 | { |
10072 | void *hdr; | |
10073 | ||
15e47304 | 10074 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
2a519311 JB |
10075 | if (!hdr) |
10076 | return -1; | |
10077 | ||
9360ffd1 | 10078 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
fd014284 JB |
10079 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10080 | wdev->netdev->ifindex)) || | |
10081 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9360ffd1 | 10082 | goto nla_put_failure; |
2a519311 | 10083 | |
362a415d JB |
10084 | /* ignore errors and send incomplete event anyway */ |
10085 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
10086 | |
10087 | return genlmsg_end(msg, hdr); | |
10088 | ||
10089 | nla_put_failure: | |
10090 | genlmsg_cancel(msg, hdr); | |
10091 | return -EMSGSIZE; | |
10092 | } | |
10093 | ||
807f8a8c LC |
10094 | static int |
10095 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
10096 | struct cfg80211_registered_device *rdev, | |
10097 | struct net_device *netdev, | |
15e47304 | 10098 | u32 portid, u32 seq, int flags, u32 cmd) |
807f8a8c LC |
10099 | { |
10100 | void *hdr; | |
10101 | ||
15e47304 | 10102 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
807f8a8c LC |
10103 | if (!hdr) |
10104 | return -1; | |
10105 | ||
9360ffd1 DM |
10106 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10107 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
10108 | goto nla_put_failure; | |
807f8a8c LC |
10109 | |
10110 | return genlmsg_end(msg, hdr); | |
10111 | ||
10112 | nla_put_failure: | |
10113 | genlmsg_cancel(msg, hdr); | |
10114 | return -EMSGSIZE; | |
10115 | } | |
10116 | ||
a538e2d5 | 10117 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
fd014284 | 10118 | struct wireless_dev *wdev) |
a538e2d5 JB |
10119 | { |
10120 | struct sk_buff *msg; | |
10121 | ||
58050fce | 10122 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
a538e2d5 JB |
10123 | if (!msg) |
10124 | return; | |
10125 | ||
fd014284 | 10126 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 JB |
10127 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
10128 | nlmsg_free(msg); | |
10129 | return; | |
10130 | } | |
10131 | ||
68eb5503 | 10132 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10133 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
a538e2d5 JB |
10134 | } |
10135 | ||
f9d15d16 JB |
10136 | struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev, |
10137 | struct wireless_dev *wdev, bool aborted) | |
2a519311 JB |
10138 | { |
10139 | struct sk_buff *msg; | |
10140 | ||
fd2120ca | 10141 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 | 10142 | if (!msg) |
f9d15d16 | 10143 | return NULL; |
2a519311 | 10144 | |
fd014284 | 10145 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
f9d15d16 JB |
10146 | aborted ? NL80211_CMD_SCAN_ABORTED : |
10147 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 | 10148 | nlmsg_free(msg); |
f9d15d16 | 10149 | return NULL; |
2a519311 JB |
10150 | } |
10151 | ||
f9d15d16 | 10152 | return msg; |
2a519311 JB |
10153 | } |
10154 | ||
f9d15d16 JB |
10155 | void nl80211_send_scan_result(struct cfg80211_registered_device *rdev, |
10156 | struct sk_buff *msg) | |
2a519311 | 10157 | { |
2a519311 JB |
10158 | if (!msg) |
10159 | return; | |
10160 | ||
68eb5503 | 10161 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10162 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
2a519311 JB |
10163 | } |
10164 | ||
807f8a8c LC |
10165 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
10166 | struct net_device *netdev) | |
10167 | { | |
10168 | struct sk_buff *msg; | |
10169 | ||
10170 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
10171 | if (!msg) | |
10172 | return; | |
10173 | ||
10174 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
10175 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
10176 | nlmsg_free(msg); | |
10177 | return; | |
10178 | } | |
10179 | ||
68eb5503 | 10180 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10181 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
807f8a8c LC |
10182 | } |
10183 | ||
10184 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
10185 | struct net_device *netdev, u32 cmd) | |
10186 | { | |
10187 | struct sk_buff *msg; | |
10188 | ||
58050fce | 10189 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
807f8a8c LC |
10190 | if (!msg) |
10191 | return; | |
10192 | ||
10193 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
10194 | nlmsg_free(msg); | |
10195 | return; | |
10196 | } | |
10197 | ||
68eb5503 | 10198 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10199 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
807f8a8c LC |
10200 | } |
10201 | ||
73d54c9e LR |
10202 | /* |
10203 | * This can happen on global regulatory changes or device specific settings | |
10204 | * based on custom world regulatory domains. | |
10205 | */ | |
10206 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
10207 | { | |
10208 | struct sk_buff *msg; | |
10209 | void *hdr; | |
10210 | ||
fd2120ca | 10211 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
10212 | if (!msg) |
10213 | return; | |
10214 | ||
10215 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
10216 | if (!hdr) { | |
10217 | nlmsg_free(msg); | |
10218 | return; | |
10219 | } | |
10220 | ||
10221 | /* Userspace can always count this one always being set */ | |
9360ffd1 DM |
10222 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
10223 | goto nla_put_failure; | |
10224 | ||
10225 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
10226 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
10227 | NL80211_REGDOM_TYPE_WORLD)) | |
10228 | goto nla_put_failure; | |
10229 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
10230 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
10231 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
10232 | goto nla_put_failure; | |
10233 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
10234 | request->intersect) { | |
10235 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
10236 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
10237 | goto nla_put_failure; | |
10238 | } else { | |
10239 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
10240 | NL80211_REGDOM_TYPE_COUNTRY) || | |
10241 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
10242 | request->alpha2)) | |
10243 | goto nla_put_failure; | |
10244 | } | |
10245 | ||
f4173766 | 10246 | if (request->wiphy_idx != WIPHY_IDX_INVALID && |
9360ffd1 DM |
10247 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) |
10248 | goto nla_put_failure; | |
73d54c9e | 10249 | |
3b7b72ee | 10250 | genlmsg_end(msg, hdr); |
73d54c9e | 10251 | |
bc43b28c | 10252 | rcu_read_lock(); |
68eb5503 | 10253 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
2a94fe48 | 10254 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
bc43b28c | 10255 | rcu_read_unlock(); |
73d54c9e LR |
10256 | |
10257 | return; | |
10258 | ||
10259 | nla_put_failure: | |
10260 | genlmsg_cancel(msg, hdr); | |
10261 | nlmsg_free(msg); | |
10262 | } | |
10263 | ||
6039f6d2 JM |
10264 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
10265 | struct net_device *netdev, | |
10266 | const u8 *buf, size_t len, | |
e6d6e342 | 10267 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
10268 | { |
10269 | struct sk_buff *msg; | |
10270 | void *hdr; | |
10271 | ||
e6d6e342 | 10272 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
10273 | if (!msg) |
10274 | return; | |
10275 | ||
10276 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
10277 | if (!hdr) { | |
10278 | nlmsg_free(msg); | |
10279 | return; | |
10280 | } | |
10281 | ||
9360ffd1 DM |
10282 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10283 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10284 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
10285 | goto nla_put_failure; | |
6039f6d2 | 10286 | |
3b7b72ee | 10287 | genlmsg_end(msg, hdr); |
6039f6d2 | 10288 | |
68eb5503 | 10289 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10290 | NL80211_MCGRP_MLME, gfp); |
6039f6d2 JM |
10291 | return; |
10292 | ||
10293 | nla_put_failure: | |
10294 | genlmsg_cancel(msg, hdr); | |
10295 | nlmsg_free(msg); | |
10296 | } | |
10297 | ||
10298 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
10299 | struct net_device *netdev, const u8 *buf, |
10300 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
10301 | { |
10302 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 10303 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
10304 | } |
10305 | ||
10306 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
10307 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 10308 | size_t len, gfp_t gfp) |
6039f6d2 | 10309 | { |
e6d6e342 JB |
10310 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
10311 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
10312 | } |
10313 | ||
53b46b84 | 10314 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
10315 | struct net_device *netdev, const u8 *buf, |
10316 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
10317 | { |
10318 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 10319 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
10320 | } |
10321 | ||
53b46b84 JM |
10322 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
10323 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 10324 | size_t len, gfp_t gfp) |
6039f6d2 JM |
10325 | { |
10326 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 10327 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
10328 | } |
10329 | ||
6ff57cf8 JB |
10330 | void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, |
10331 | size_t len) | |
cf4e594e | 10332 | { |
947add36 JB |
10333 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10334 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 10335 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6ff57cf8 JB |
10336 | const struct ieee80211_mgmt *mgmt = (void *)buf; |
10337 | u32 cmd; | |
947add36 | 10338 | |
6ff57cf8 JB |
10339 | if (WARN_ON(len < 2)) |
10340 | return; | |
cf4e594e | 10341 | |
6ff57cf8 JB |
10342 | if (ieee80211_is_deauth(mgmt->frame_control)) |
10343 | cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; | |
10344 | else | |
10345 | cmd = NL80211_CMD_UNPROT_DISASSOCIATE; | |
947add36 | 10346 | |
6ff57cf8 JB |
10347 | trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); |
10348 | nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC); | |
cf4e594e | 10349 | } |
6ff57cf8 | 10350 | EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); |
cf4e594e | 10351 | |
1b06bb40 LR |
10352 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
10353 | struct net_device *netdev, int cmd, | |
e6d6e342 | 10354 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
10355 | { |
10356 | struct sk_buff *msg; | |
10357 | void *hdr; | |
10358 | ||
e6d6e342 | 10359 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
10360 | if (!msg) |
10361 | return; | |
10362 | ||
10363 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
10364 | if (!hdr) { | |
10365 | nlmsg_free(msg); | |
10366 | return; | |
10367 | } | |
10368 | ||
9360ffd1 DM |
10369 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10370 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10371 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
10372 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
10373 | goto nla_put_failure; | |
1965c853 | 10374 | |
3b7b72ee | 10375 | genlmsg_end(msg, hdr); |
1965c853 | 10376 | |
68eb5503 | 10377 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10378 | NL80211_MCGRP_MLME, gfp); |
1965c853 JM |
10379 | return; |
10380 | ||
10381 | nla_put_failure: | |
10382 | genlmsg_cancel(msg, hdr); | |
10383 | nlmsg_free(msg); | |
10384 | } | |
10385 | ||
10386 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
10387 | struct net_device *netdev, const u8 *addr, |
10388 | gfp_t gfp) | |
1965c853 JM |
10389 | { |
10390 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 10391 | addr, gfp); |
1965c853 JM |
10392 | } |
10393 | ||
10394 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
10395 | struct net_device *netdev, const u8 *addr, |
10396 | gfp_t gfp) | |
1965c853 | 10397 | { |
e6d6e342 JB |
10398 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
10399 | addr, gfp); | |
1965c853 JM |
10400 | } |
10401 | ||
b23aa676 SO |
10402 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
10403 | struct net_device *netdev, const u8 *bssid, | |
10404 | const u8 *req_ie, size_t req_ie_len, | |
10405 | const u8 *resp_ie, size_t resp_ie_len, | |
10406 | u16 status, gfp_t gfp) | |
10407 | { | |
10408 | struct sk_buff *msg; | |
10409 | void *hdr; | |
10410 | ||
58050fce | 10411 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
10412 | if (!msg) |
10413 | return; | |
10414 | ||
10415 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
10416 | if (!hdr) { | |
10417 | nlmsg_free(msg); | |
10418 | return; | |
10419 | } | |
10420 | ||
9360ffd1 DM |
10421 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10422 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10423 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
10424 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
10425 | (req_ie && | |
10426 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
10427 | (resp_ie && | |
10428 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
10429 | goto nla_put_failure; | |
b23aa676 | 10430 | |
3b7b72ee | 10431 | genlmsg_end(msg, hdr); |
b23aa676 | 10432 | |
68eb5503 | 10433 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10434 | NL80211_MCGRP_MLME, gfp); |
b23aa676 SO |
10435 | return; |
10436 | ||
10437 | nla_put_failure: | |
10438 | genlmsg_cancel(msg, hdr); | |
10439 | nlmsg_free(msg); | |
10440 | ||
10441 | } | |
10442 | ||
10443 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
10444 | struct net_device *netdev, const u8 *bssid, | |
10445 | const u8 *req_ie, size_t req_ie_len, | |
10446 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
10447 | { | |
10448 | struct sk_buff *msg; | |
10449 | void *hdr; | |
10450 | ||
58050fce | 10451 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
10452 | if (!msg) |
10453 | return; | |
10454 | ||
10455 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
10456 | if (!hdr) { | |
10457 | nlmsg_free(msg); | |
10458 | return; | |
10459 | } | |
10460 | ||
9360ffd1 DM |
10461 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10462 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10463 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
10464 | (req_ie && | |
10465 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
10466 | (resp_ie && | |
10467 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
10468 | goto nla_put_failure; | |
b23aa676 | 10469 | |
3b7b72ee | 10470 | genlmsg_end(msg, hdr); |
b23aa676 | 10471 | |
68eb5503 | 10472 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10473 | NL80211_MCGRP_MLME, gfp); |
b23aa676 SO |
10474 | return; |
10475 | ||
10476 | nla_put_failure: | |
10477 | genlmsg_cancel(msg, hdr); | |
10478 | nlmsg_free(msg); | |
10479 | ||
10480 | } | |
10481 | ||
10482 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
10483 | struct net_device *netdev, u16 reason, | |
667503dd | 10484 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
10485 | { |
10486 | struct sk_buff *msg; | |
10487 | void *hdr; | |
10488 | ||
58050fce | 10489 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
b23aa676 SO |
10490 | if (!msg) |
10491 | return; | |
10492 | ||
10493 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
10494 | if (!hdr) { | |
10495 | nlmsg_free(msg); | |
10496 | return; | |
10497 | } | |
10498 | ||
9360ffd1 DM |
10499 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10500 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10501 | (from_ap && reason && | |
10502 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
10503 | (from_ap && | |
10504 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
10505 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
10506 | goto nla_put_failure; | |
b23aa676 | 10507 | |
3b7b72ee | 10508 | genlmsg_end(msg, hdr); |
b23aa676 | 10509 | |
68eb5503 | 10510 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10511 | NL80211_MCGRP_MLME, GFP_KERNEL); |
b23aa676 SO |
10512 | return; |
10513 | ||
10514 | nla_put_failure: | |
10515 | genlmsg_cancel(msg, hdr); | |
10516 | nlmsg_free(msg); | |
10517 | ||
10518 | } | |
10519 | ||
04a773ad JB |
10520 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
10521 | struct net_device *netdev, const u8 *bssid, | |
10522 | gfp_t gfp) | |
10523 | { | |
10524 | struct sk_buff *msg; | |
10525 | void *hdr; | |
10526 | ||
fd2120ca | 10527 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
10528 | if (!msg) |
10529 | return; | |
10530 | ||
10531 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
10532 | if (!hdr) { | |
10533 | nlmsg_free(msg); | |
10534 | return; | |
10535 | } | |
10536 | ||
9360ffd1 DM |
10537 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10538 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10539 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
10540 | goto nla_put_failure; | |
04a773ad | 10541 | |
3b7b72ee | 10542 | genlmsg_end(msg, hdr); |
04a773ad | 10543 | |
68eb5503 | 10544 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10545 | NL80211_MCGRP_MLME, gfp); |
04a773ad JB |
10546 | return; |
10547 | ||
10548 | nla_put_failure: | |
10549 | genlmsg_cancel(msg, hdr); | |
10550 | nlmsg_free(msg); | |
10551 | } | |
10552 | ||
947add36 JB |
10553 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, |
10554 | const u8* ie, u8 ie_len, gfp_t gfp) | |
c93b5e71 | 10555 | { |
947add36 | 10556 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 10557 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
c93b5e71 JC |
10558 | struct sk_buff *msg; |
10559 | void *hdr; | |
10560 | ||
947add36 JB |
10561 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) |
10562 | return; | |
10563 | ||
10564 | trace_cfg80211_notify_new_peer_candidate(dev, addr); | |
10565 | ||
c93b5e71 JC |
10566 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10567 | if (!msg) | |
10568 | return; | |
10569 | ||
10570 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
10571 | if (!hdr) { | |
10572 | nlmsg_free(msg); | |
10573 | return; | |
10574 | } | |
10575 | ||
9360ffd1 | 10576 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 JB |
10577 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10578 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
9360ffd1 DM |
10579 | (ie_len && ie && |
10580 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
10581 | goto nla_put_failure; | |
c93b5e71 | 10582 | |
3b7b72ee | 10583 | genlmsg_end(msg, hdr); |
c93b5e71 | 10584 | |
68eb5503 | 10585 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10586 | NL80211_MCGRP_MLME, gfp); |
c93b5e71 JC |
10587 | return; |
10588 | ||
10589 | nla_put_failure: | |
10590 | genlmsg_cancel(msg, hdr); | |
10591 | nlmsg_free(msg); | |
10592 | } | |
947add36 | 10593 | EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); |
c93b5e71 | 10594 | |
a3b8b056 JM |
10595 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
10596 | struct net_device *netdev, const u8 *addr, | |
10597 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 10598 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
10599 | { |
10600 | struct sk_buff *msg; | |
10601 | void *hdr; | |
10602 | ||
e6d6e342 | 10603 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
10604 | if (!msg) |
10605 | return; | |
10606 | ||
10607 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
10608 | if (!hdr) { | |
10609 | nlmsg_free(msg); | |
10610 | return; | |
10611 | } | |
10612 | ||
9360ffd1 DM |
10613 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10614 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
10615 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
10616 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
10617 | (key_id != -1 && | |
10618 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
10619 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
10620 | goto nla_put_failure; | |
a3b8b056 | 10621 | |
3b7b72ee | 10622 | genlmsg_end(msg, hdr); |
a3b8b056 | 10623 | |
68eb5503 | 10624 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10625 | NL80211_MCGRP_MLME, gfp); |
a3b8b056 JM |
10626 | return; |
10627 | ||
10628 | nla_put_failure: | |
10629 | genlmsg_cancel(msg, hdr); | |
10630 | nlmsg_free(msg); | |
10631 | } | |
10632 | ||
6bad8766 LR |
10633 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
10634 | struct ieee80211_channel *channel_before, | |
10635 | struct ieee80211_channel *channel_after) | |
10636 | { | |
10637 | struct sk_buff *msg; | |
10638 | void *hdr; | |
10639 | struct nlattr *nl_freq; | |
10640 | ||
fd2120ca | 10641 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
10642 | if (!msg) |
10643 | return; | |
10644 | ||
10645 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
10646 | if (!hdr) { | |
10647 | nlmsg_free(msg); | |
10648 | return; | |
10649 | } | |
10650 | ||
10651 | /* | |
10652 | * Since we are applying the beacon hint to a wiphy we know its | |
10653 | * wiphy_idx is valid | |
10654 | */ | |
9360ffd1 DM |
10655 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
10656 | goto nla_put_failure; | |
6bad8766 LR |
10657 | |
10658 | /* Before */ | |
10659 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
10660 | if (!nl_freq) | |
10661 | goto nla_put_failure; | |
cdc89b97 | 10662 | if (nl80211_msg_put_channel(msg, channel_before, false)) |
6bad8766 LR |
10663 | goto nla_put_failure; |
10664 | nla_nest_end(msg, nl_freq); | |
10665 | ||
10666 | /* After */ | |
10667 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
10668 | if (!nl_freq) | |
10669 | goto nla_put_failure; | |
cdc89b97 | 10670 | if (nl80211_msg_put_channel(msg, channel_after, false)) |
6bad8766 LR |
10671 | goto nla_put_failure; |
10672 | nla_nest_end(msg, nl_freq); | |
10673 | ||
3b7b72ee | 10674 | genlmsg_end(msg, hdr); |
6bad8766 | 10675 | |
463d0183 | 10676 | rcu_read_lock(); |
68eb5503 | 10677 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
2a94fe48 | 10678 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
463d0183 | 10679 | rcu_read_unlock(); |
6bad8766 LR |
10680 | |
10681 | return; | |
10682 | ||
10683 | nla_put_failure: | |
10684 | genlmsg_cancel(msg, hdr); | |
10685 | nlmsg_free(msg); | |
10686 | } | |
10687 | ||
9588bbd5 JM |
10688 | static void nl80211_send_remain_on_chan_event( |
10689 | int cmd, struct cfg80211_registered_device *rdev, | |
71bbc994 | 10690 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 | 10691 | struct ieee80211_channel *chan, |
9588bbd5 JM |
10692 | unsigned int duration, gfp_t gfp) |
10693 | { | |
10694 | struct sk_buff *msg; | |
10695 | void *hdr; | |
10696 | ||
10697 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
10698 | if (!msg) | |
10699 | return; | |
10700 | ||
10701 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
10702 | if (!hdr) { | |
10703 | nlmsg_free(msg); | |
10704 | return; | |
10705 | } | |
10706 | ||
9360ffd1 | 10707 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
10708 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10709 | wdev->netdev->ifindex)) || | |
00f53350 | 10710 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 | 10711 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
42d97a59 JB |
10712 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
10713 | NL80211_CHAN_NO_HT) || | |
9360ffd1 DM |
10714 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
10715 | goto nla_put_failure; | |
9588bbd5 | 10716 | |
9360ffd1 DM |
10717 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
10718 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
10719 | goto nla_put_failure; | |
9588bbd5 | 10720 | |
3b7b72ee | 10721 | genlmsg_end(msg, hdr); |
9588bbd5 | 10722 | |
68eb5503 | 10723 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10724 | NL80211_MCGRP_MLME, gfp); |
9588bbd5 JM |
10725 | return; |
10726 | ||
10727 | nla_put_failure: | |
10728 | genlmsg_cancel(msg, hdr); | |
10729 | nlmsg_free(msg); | |
10730 | } | |
10731 | ||
947add36 JB |
10732 | void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, |
10733 | struct ieee80211_channel *chan, | |
10734 | unsigned int duration, gfp_t gfp) | |
9588bbd5 | 10735 | { |
947add36 | 10736 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 10737 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
10738 | |
10739 | trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); | |
9588bbd5 | 10740 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, |
71bbc994 | 10741 | rdev, wdev, cookie, chan, |
42d97a59 | 10742 | duration, gfp); |
9588bbd5 | 10743 | } |
947add36 | 10744 | EXPORT_SYMBOL(cfg80211_ready_on_channel); |
9588bbd5 | 10745 | |
947add36 JB |
10746 | void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, |
10747 | struct ieee80211_channel *chan, | |
10748 | gfp_t gfp) | |
9588bbd5 | 10749 | { |
947add36 | 10750 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 10751 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
10752 | |
10753 | trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); | |
9588bbd5 | 10754 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
42d97a59 | 10755 | rdev, wdev, cookie, chan, 0, gfp); |
9588bbd5 | 10756 | } |
947add36 | 10757 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); |
9588bbd5 | 10758 | |
947add36 JB |
10759 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
10760 | struct station_info *sinfo, gfp_t gfp) | |
98b62183 | 10761 | { |
947add36 | 10762 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 10763 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
98b62183 JB |
10764 | struct sk_buff *msg; |
10765 | ||
947add36 JB |
10766 | trace_cfg80211_new_sta(dev, mac_addr, sinfo); |
10767 | ||
58050fce | 10768 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
98b62183 JB |
10769 | if (!msg) |
10770 | return; | |
10771 | ||
66266b3a JL |
10772 | if (nl80211_send_station(msg, 0, 0, 0, |
10773 | rdev, dev, mac_addr, sinfo) < 0) { | |
98b62183 JB |
10774 | nlmsg_free(msg); |
10775 | return; | |
10776 | } | |
10777 | ||
68eb5503 | 10778 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10779 | NL80211_MCGRP_MLME, gfp); |
98b62183 | 10780 | } |
947add36 | 10781 | EXPORT_SYMBOL(cfg80211_new_sta); |
98b62183 | 10782 | |
947add36 | 10783 | void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp) |
ec15e68b | 10784 | { |
947add36 | 10785 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 10786 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ec15e68b JM |
10787 | struct sk_buff *msg; |
10788 | void *hdr; | |
10789 | ||
947add36 JB |
10790 | trace_cfg80211_del_sta(dev, mac_addr); |
10791 | ||
58050fce | 10792 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
ec15e68b JM |
10793 | if (!msg) |
10794 | return; | |
10795 | ||
10796 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION); | |
10797 | if (!hdr) { | |
10798 | nlmsg_free(msg); | |
10799 | return; | |
10800 | } | |
10801 | ||
9360ffd1 DM |
10802 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
10803 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
10804 | goto nla_put_failure; | |
ec15e68b | 10805 | |
3b7b72ee | 10806 | genlmsg_end(msg, hdr); |
ec15e68b | 10807 | |
68eb5503 | 10808 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10809 | NL80211_MCGRP_MLME, gfp); |
ec15e68b JM |
10810 | return; |
10811 | ||
10812 | nla_put_failure: | |
10813 | genlmsg_cancel(msg, hdr); | |
10814 | nlmsg_free(msg); | |
10815 | } | |
947add36 | 10816 | EXPORT_SYMBOL(cfg80211_del_sta); |
ec15e68b | 10817 | |
947add36 JB |
10818 | void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, |
10819 | enum nl80211_connect_failed_reason reason, | |
10820 | gfp_t gfp) | |
ed44a951 | 10821 | { |
947add36 | 10822 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 10823 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ed44a951 PP |
10824 | struct sk_buff *msg; |
10825 | void *hdr; | |
10826 | ||
10827 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
10828 | if (!msg) | |
10829 | return; | |
10830 | ||
10831 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
10832 | if (!hdr) { | |
10833 | nlmsg_free(msg); | |
10834 | return; | |
10835 | } | |
10836 | ||
10837 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
10838 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
10839 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
10840 | goto nla_put_failure; | |
10841 | ||
10842 | genlmsg_end(msg, hdr); | |
10843 | ||
68eb5503 | 10844 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 10845 | NL80211_MCGRP_MLME, gfp); |
ed44a951 PP |
10846 | return; |
10847 | ||
10848 | nla_put_failure: | |
10849 | genlmsg_cancel(msg, hdr); | |
10850 | nlmsg_free(msg); | |
10851 | } | |
947add36 | 10852 | EXPORT_SYMBOL(cfg80211_conn_failed); |
ed44a951 | 10853 | |
b92ab5d8 JB |
10854 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
10855 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
10856 | { |
10857 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 10858 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
28946da7 JB |
10859 | struct sk_buff *msg; |
10860 | void *hdr; | |
15e47304 | 10861 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
28946da7 | 10862 | |
15e47304 | 10863 | if (!nlportid) |
28946da7 JB |
10864 | return false; |
10865 | ||
10866 | msg = nlmsg_new(100, gfp); | |
10867 | if (!msg) | |
10868 | return true; | |
10869 | ||
b92ab5d8 | 10870 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
10871 | if (!hdr) { |
10872 | nlmsg_free(msg); | |
10873 | return true; | |
10874 | } | |
10875 | ||
9360ffd1 DM |
10876 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
10877 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
10878 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
10879 | goto nla_put_failure; | |
28946da7 | 10880 | |
9c90a9f6 | 10881 | genlmsg_end(msg, hdr); |
15e47304 | 10882 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
28946da7 JB |
10883 | return true; |
10884 | ||
10885 | nla_put_failure: | |
10886 | genlmsg_cancel(msg, hdr); | |
10887 | nlmsg_free(msg); | |
10888 | return true; | |
10889 | } | |
10890 | ||
947add36 JB |
10891 | bool cfg80211_rx_spurious_frame(struct net_device *dev, |
10892 | const u8 *addr, gfp_t gfp) | |
b92ab5d8 | 10893 | { |
947add36 JB |
10894 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10895 | bool ret; | |
10896 | ||
10897 | trace_cfg80211_rx_spurious_frame(dev, addr); | |
10898 | ||
10899 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
10900 | wdev->iftype != NL80211_IFTYPE_P2P_GO)) { | |
10901 | trace_cfg80211_return_bool(false); | |
10902 | return false; | |
10903 | } | |
10904 | ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
10905 | addr, gfp); | |
10906 | trace_cfg80211_return_bool(ret); | |
10907 | return ret; | |
b92ab5d8 | 10908 | } |
947add36 | 10909 | EXPORT_SYMBOL(cfg80211_rx_spurious_frame); |
b92ab5d8 | 10910 | |
947add36 JB |
10911 | bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, |
10912 | const u8 *addr, gfp_t gfp) | |
b92ab5d8 | 10913 | { |
947add36 JB |
10914 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
10915 | bool ret; | |
10916 | ||
10917 | trace_cfg80211_rx_unexpected_4addr_frame(dev, addr); | |
10918 | ||
10919 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
10920 | wdev->iftype != NL80211_IFTYPE_P2P_GO && | |
10921 | wdev->iftype != NL80211_IFTYPE_AP_VLAN)) { | |
10922 | trace_cfg80211_return_bool(false); | |
10923 | return false; | |
10924 | } | |
10925 | ret = __nl80211_unexpected_frame(dev, | |
10926 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
10927 | addr, gfp); | |
10928 | trace_cfg80211_return_bool(ret); | |
10929 | return ret; | |
b92ab5d8 | 10930 | } |
947add36 | 10931 | EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame); |
b92ab5d8 | 10932 | |
2e161f78 | 10933 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
15e47304 | 10934 | struct wireless_dev *wdev, u32 nlportid, |
804483e9 | 10935 | int freq, int sig_dbm, |
19504cf5 | 10936 | const u8 *buf, size_t len, u32 flags, gfp_t gfp) |
026331c4 | 10937 | { |
71bbc994 | 10938 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
10939 | struct sk_buff *msg; |
10940 | void *hdr; | |
026331c4 JM |
10941 | |
10942 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
10943 | if (!msg) | |
10944 | return -ENOMEM; | |
10945 | ||
2e161f78 | 10946 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
10947 | if (!hdr) { |
10948 | nlmsg_free(msg); | |
10949 | return -ENOMEM; | |
10950 | } | |
10951 | ||
9360ffd1 | 10952 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
10953 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10954 | netdev->ifindex)) || | |
a838490b | 10955 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
10956 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
10957 | (sig_dbm && | |
10958 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
19504cf5 VK |
10959 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
10960 | (flags && | |
10961 | nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags))) | |
9360ffd1 | 10962 | goto nla_put_failure; |
026331c4 | 10963 | |
3b7b72ee | 10964 | genlmsg_end(msg, hdr); |
026331c4 | 10965 | |
15e47304 | 10966 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
026331c4 JM |
10967 | |
10968 | nla_put_failure: | |
10969 | genlmsg_cancel(msg, hdr); | |
10970 | nlmsg_free(msg); | |
10971 | return -ENOBUFS; | |
10972 | } | |
10973 | ||
947add36 JB |
10974 | void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, |
10975 | const u8 *buf, size_t len, bool ack, gfp_t gfp) | |
026331c4 | 10976 | { |
947add36 | 10977 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 10978 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
71bbc994 | 10979 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
10980 | struct sk_buff *msg; |
10981 | void *hdr; | |
10982 | ||
947add36 JB |
10983 | trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); |
10984 | ||
026331c4 JM |
10985 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
10986 | if (!msg) | |
10987 | return; | |
10988 | ||
2e161f78 | 10989 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
10990 | if (!hdr) { |
10991 | nlmsg_free(msg); | |
10992 | return; | |
10993 | } | |
10994 | ||
9360ffd1 | 10995 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
10996 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
10997 | netdev->ifindex)) || | |
a838490b | 10998 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
10999 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
11000 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
11001 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
11002 | goto nla_put_failure; | |
026331c4 | 11003 | |
3b7b72ee | 11004 | genlmsg_end(msg, hdr); |
026331c4 | 11005 | |
68eb5503 | 11006 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11007 | NL80211_MCGRP_MLME, gfp); |
026331c4 JM |
11008 | return; |
11009 | ||
11010 | nla_put_failure: | |
11011 | genlmsg_cancel(msg, hdr); | |
11012 | nlmsg_free(msg); | |
11013 | } | |
947add36 | 11014 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
026331c4 | 11015 | |
947add36 JB |
11016 | void cfg80211_cqm_rssi_notify(struct net_device *dev, |
11017 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
11018 | gfp_t gfp) | |
d6dc1a38 | 11019 | { |
947add36 JB |
11020 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
11021 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11022 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
d6dc1a38 JO |
11023 | struct sk_buff *msg; |
11024 | struct nlattr *pinfoattr; | |
11025 | void *hdr; | |
11026 | ||
947add36 JB |
11027 | trace_cfg80211_cqm_rssi_notify(dev, rssi_event); |
11028 | ||
58050fce | 11029 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
d6dc1a38 JO |
11030 | if (!msg) |
11031 | return; | |
11032 | ||
11033 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
11034 | if (!hdr) { | |
11035 | nlmsg_free(msg); | |
11036 | return; | |
11037 | } | |
11038 | ||
9360ffd1 | 11039 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 | 11040 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
9360ffd1 | 11041 | goto nla_put_failure; |
d6dc1a38 JO |
11042 | |
11043 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
11044 | if (!pinfoattr) | |
11045 | goto nla_put_failure; | |
11046 | ||
9360ffd1 DM |
11047 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, |
11048 | rssi_event)) | |
11049 | goto nla_put_failure; | |
d6dc1a38 JO |
11050 | |
11051 | nla_nest_end(msg, pinfoattr); | |
11052 | ||
3b7b72ee | 11053 | genlmsg_end(msg, hdr); |
d6dc1a38 | 11054 | |
68eb5503 | 11055 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11056 | NL80211_MCGRP_MLME, gfp); |
d6dc1a38 JO |
11057 | return; |
11058 | ||
11059 | nla_put_failure: | |
11060 | genlmsg_cancel(msg, hdr); | |
11061 | nlmsg_free(msg); | |
11062 | } | |
947add36 | 11063 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |
d6dc1a38 | 11064 | |
947add36 JB |
11065 | static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
11066 | struct net_device *netdev, const u8 *bssid, | |
11067 | const u8 *replay_ctr, gfp_t gfp) | |
e5497d76 JB |
11068 | { |
11069 | struct sk_buff *msg; | |
11070 | struct nlattr *rekey_attr; | |
11071 | void *hdr; | |
11072 | ||
58050fce | 11073 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
e5497d76 JB |
11074 | if (!msg) |
11075 | return; | |
11076 | ||
11077 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
11078 | if (!hdr) { | |
11079 | nlmsg_free(msg); | |
11080 | return; | |
11081 | } | |
11082 | ||
9360ffd1 DM |
11083 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11084 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11085 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
11086 | goto nla_put_failure; | |
e5497d76 JB |
11087 | |
11088 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
11089 | if (!rekey_attr) | |
11090 | goto nla_put_failure; | |
11091 | ||
9360ffd1 DM |
11092 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
11093 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
11094 | goto nla_put_failure; | |
e5497d76 JB |
11095 | |
11096 | nla_nest_end(msg, rekey_attr); | |
11097 | ||
3b7b72ee | 11098 | genlmsg_end(msg, hdr); |
e5497d76 | 11099 | |
68eb5503 | 11100 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11101 | NL80211_MCGRP_MLME, gfp); |
e5497d76 JB |
11102 | return; |
11103 | ||
11104 | nla_put_failure: | |
11105 | genlmsg_cancel(msg, hdr); | |
11106 | nlmsg_free(msg); | |
11107 | } | |
11108 | ||
947add36 JB |
11109 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
11110 | const u8 *replay_ctr, gfp_t gfp) | |
11111 | { | |
11112 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11113 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11114 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
11115 | |
11116 | trace_cfg80211_gtk_rekey_notify(dev, bssid); | |
11117 | nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); | |
11118 | } | |
11119 | EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); | |
11120 | ||
11121 | static void | |
11122 | nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, | |
11123 | struct net_device *netdev, int index, | |
11124 | const u8 *bssid, bool preauth, gfp_t gfp) | |
c9df56b4 JM |
11125 | { |
11126 | struct sk_buff *msg; | |
11127 | struct nlattr *attr; | |
11128 | void *hdr; | |
11129 | ||
58050fce | 11130 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c9df56b4 JM |
11131 | if (!msg) |
11132 | return; | |
11133 | ||
11134 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
11135 | if (!hdr) { | |
11136 | nlmsg_free(msg); | |
11137 | return; | |
11138 | } | |
11139 | ||
9360ffd1 DM |
11140 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11141 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
11142 | goto nla_put_failure; | |
c9df56b4 JM |
11143 | |
11144 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
11145 | if (!attr) | |
11146 | goto nla_put_failure; | |
11147 | ||
9360ffd1 DM |
11148 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
11149 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
11150 | (preauth && | |
11151 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
11152 | goto nla_put_failure; | |
c9df56b4 JM |
11153 | |
11154 | nla_nest_end(msg, attr); | |
11155 | ||
3b7b72ee | 11156 | genlmsg_end(msg, hdr); |
c9df56b4 | 11157 | |
68eb5503 | 11158 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11159 | NL80211_MCGRP_MLME, gfp); |
c9df56b4 JM |
11160 | return; |
11161 | ||
11162 | nla_put_failure: | |
11163 | genlmsg_cancel(msg, hdr); | |
11164 | nlmsg_free(msg); | |
11165 | } | |
11166 | ||
947add36 JB |
11167 | void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, |
11168 | const u8 *bssid, bool preauth, gfp_t gfp) | |
11169 | { | |
11170 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11171 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11172 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
11173 | |
11174 | trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); | |
11175 | nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); | |
11176 | } | |
11177 | EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); | |
11178 | ||
11179 | static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, | |
11180 | struct net_device *netdev, | |
11181 | struct cfg80211_chan_def *chandef, | |
11182 | gfp_t gfp) | |
5314526b TP |
11183 | { |
11184 | struct sk_buff *msg; | |
11185 | void *hdr; | |
11186 | ||
58050fce | 11187 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
5314526b TP |
11188 | if (!msg) |
11189 | return; | |
11190 | ||
11191 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); | |
11192 | if (!hdr) { | |
11193 | nlmsg_free(msg); | |
11194 | return; | |
11195 | } | |
11196 | ||
683b6d3b JB |
11197 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
11198 | goto nla_put_failure; | |
11199 | ||
11200 | if (nl80211_send_chandef(msg, chandef)) | |
7eab0f64 | 11201 | goto nla_put_failure; |
5314526b TP |
11202 | |
11203 | genlmsg_end(msg, hdr); | |
11204 | ||
68eb5503 | 11205 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11206 | NL80211_MCGRP_MLME, gfp); |
5314526b TP |
11207 | return; |
11208 | ||
11209 | nla_put_failure: | |
11210 | genlmsg_cancel(msg, hdr); | |
11211 | nlmsg_free(msg); | |
11212 | } | |
11213 | ||
947add36 JB |
11214 | void cfg80211_ch_switch_notify(struct net_device *dev, |
11215 | struct cfg80211_chan_def *chandef) | |
84f10708 | 11216 | { |
947add36 JB |
11217 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
11218 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11219 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 | 11220 | |
e487eaeb | 11221 | ASSERT_WDEV_LOCK(wdev); |
947add36 | 11222 | |
e487eaeb | 11223 | trace_cfg80211_ch_switch_notify(dev, chandef); |
947add36 JB |
11224 | |
11225 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
ee4bc9e7 | 11226 | wdev->iftype != NL80211_IFTYPE_P2P_GO && |
b8456a14 CYY |
11227 | wdev->iftype != NL80211_IFTYPE_ADHOC && |
11228 | wdev->iftype != NL80211_IFTYPE_MESH_POINT)) | |
e487eaeb | 11229 | return; |
947add36 | 11230 | |
9e0e2961 | 11231 | wdev->chandef = *chandef; |
96f55f12 | 11232 | wdev->preset_chandef = *chandef; |
947add36 | 11233 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL); |
947add36 JB |
11234 | } |
11235 | EXPORT_SYMBOL(cfg80211_ch_switch_notify); | |
11236 | ||
11237 | void cfg80211_cqm_txe_notify(struct net_device *dev, | |
11238 | const u8 *peer, u32 num_packets, | |
11239 | u32 rate, u32 intvl, gfp_t gfp) | |
11240 | { | |
11241 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
11242 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11243 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
84f10708 TP |
11244 | struct sk_buff *msg; |
11245 | struct nlattr *pinfoattr; | |
11246 | void *hdr; | |
11247 | ||
11248 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
11249 | if (!msg) | |
11250 | return; | |
11251 | ||
11252 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
11253 | if (!hdr) { | |
11254 | nlmsg_free(msg); | |
11255 | return; | |
11256 | } | |
11257 | ||
11258 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
947add36 | 11259 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
84f10708 TP |
11260 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) |
11261 | goto nla_put_failure; | |
11262 | ||
11263 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
11264 | if (!pinfoattr) | |
11265 | goto nla_put_failure; | |
11266 | ||
11267 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
11268 | goto nla_put_failure; | |
11269 | ||
11270 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
11271 | goto nla_put_failure; | |
11272 | ||
11273 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
11274 | goto nla_put_failure; | |
11275 | ||
11276 | nla_nest_end(msg, pinfoattr); | |
11277 | ||
11278 | genlmsg_end(msg, hdr); | |
11279 | ||
68eb5503 | 11280 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11281 | NL80211_MCGRP_MLME, gfp); |
84f10708 TP |
11282 | return; |
11283 | ||
11284 | nla_put_failure: | |
11285 | genlmsg_cancel(msg, hdr); | |
11286 | nlmsg_free(msg); | |
11287 | } | |
947add36 | 11288 | EXPORT_SYMBOL(cfg80211_cqm_txe_notify); |
84f10708 | 11289 | |
04f39047 SW |
11290 | void |
11291 | nl80211_radar_notify(struct cfg80211_registered_device *rdev, | |
d2859df5 | 11292 | const struct cfg80211_chan_def *chandef, |
04f39047 SW |
11293 | enum nl80211_radar_event event, |
11294 | struct net_device *netdev, gfp_t gfp) | |
11295 | { | |
11296 | struct sk_buff *msg; | |
11297 | void *hdr; | |
11298 | ||
11299 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11300 | if (!msg) | |
11301 | return; | |
11302 | ||
11303 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT); | |
11304 | if (!hdr) { | |
11305 | nlmsg_free(msg); | |
11306 | return; | |
11307 | } | |
11308 | ||
11309 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
11310 | goto nla_put_failure; | |
11311 | ||
11312 | /* NOP and radar events don't need a netdev parameter */ | |
11313 | if (netdev) { | |
11314 | struct wireless_dev *wdev = netdev->ieee80211_ptr; | |
11315 | ||
11316 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11317 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
11318 | goto nla_put_failure; | |
11319 | } | |
11320 | ||
11321 | if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event)) | |
11322 | goto nla_put_failure; | |
11323 | ||
11324 | if (nl80211_send_chandef(msg, chandef)) | |
11325 | goto nla_put_failure; | |
11326 | ||
9c90a9f6 | 11327 | genlmsg_end(msg, hdr); |
04f39047 | 11328 | |
68eb5503 | 11329 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11330 | NL80211_MCGRP_MLME, gfp); |
04f39047 SW |
11331 | return; |
11332 | ||
11333 | nla_put_failure: | |
11334 | genlmsg_cancel(msg, hdr); | |
11335 | nlmsg_free(msg); | |
11336 | } | |
11337 | ||
947add36 JB |
11338 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, |
11339 | const u8 *peer, u32 num_packets, gfp_t gfp) | |
c063dbf5 | 11340 | { |
947add36 JB |
11341 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
11342 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11343 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
c063dbf5 JB |
11344 | struct sk_buff *msg; |
11345 | struct nlattr *pinfoattr; | |
11346 | void *hdr; | |
11347 | ||
947add36 JB |
11348 | trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); |
11349 | ||
58050fce | 11350 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c063dbf5 JB |
11351 | if (!msg) |
11352 | return; | |
11353 | ||
11354 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
11355 | if (!hdr) { | |
11356 | nlmsg_free(msg); | |
11357 | return; | |
11358 | } | |
11359 | ||
9360ffd1 | 11360 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 | 11361 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
9360ffd1 DM |
11362 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) |
11363 | goto nla_put_failure; | |
c063dbf5 JB |
11364 | |
11365 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
11366 | if (!pinfoattr) | |
11367 | goto nla_put_failure; | |
11368 | ||
9360ffd1 DM |
11369 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) |
11370 | goto nla_put_failure; | |
c063dbf5 JB |
11371 | |
11372 | nla_nest_end(msg, pinfoattr); | |
11373 | ||
3b7b72ee | 11374 | genlmsg_end(msg, hdr); |
c063dbf5 | 11375 | |
68eb5503 | 11376 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11377 | NL80211_MCGRP_MLME, gfp); |
c063dbf5 JB |
11378 | return; |
11379 | ||
11380 | nla_put_failure: | |
11381 | genlmsg_cancel(msg, hdr); | |
11382 | nlmsg_free(msg); | |
11383 | } | |
947add36 | 11384 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); |
c063dbf5 | 11385 | |
7f6cf311 JB |
11386 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
11387 | u64 cookie, bool acked, gfp_t gfp) | |
11388 | { | |
11389 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 11390 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
7f6cf311 JB |
11391 | struct sk_buff *msg; |
11392 | void *hdr; | |
7f6cf311 | 11393 | |
4ee3e063 BL |
11394 | trace_cfg80211_probe_status(dev, addr, cookie, acked); |
11395 | ||
58050fce | 11396 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
4ee3e063 | 11397 | |
7f6cf311 JB |
11398 | if (!msg) |
11399 | return; | |
11400 | ||
11401 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
11402 | if (!hdr) { | |
11403 | nlmsg_free(msg); | |
11404 | return; | |
11405 | } | |
11406 | ||
9360ffd1 DM |
11407 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11408 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
11409 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
11410 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
11411 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
11412 | goto nla_put_failure; | |
7f6cf311 | 11413 | |
9c90a9f6 | 11414 | genlmsg_end(msg, hdr); |
7f6cf311 | 11415 | |
68eb5503 | 11416 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11417 | NL80211_MCGRP_MLME, gfp); |
7f6cf311 JB |
11418 | return; |
11419 | ||
11420 | nla_put_failure: | |
11421 | genlmsg_cancel(msg, hdr); | |
11422 | nlmsg_free(msg); | |
11423 | } | |
11424 | EXPORT_SYMBOL(cfg80211_probe_status); | |
11425 | ||
5e760230 JB |
11426 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
11427 | const u8 *frame, size_t len, | |
37c73b5f | 11428 | int freq, int sig_dbm) |
5e760230 | 11429 | { |
f26cbf40 | 11430 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
5e760230 JB |
11431 | struct sk_buff *msg; |
11432 | void *hdr; | |
37c73b5f | 11433 | struct cfg80211_beacon_registration *reg; |
5e760230 | 11434 | |
4ee3e063 BL |
11435 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
11436 | ||
37c73b5f BG |
11437 | spin_lock_bh(&rdev->beacon_registrations_lock); |
11438 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
11439 | msg = nlmsg_new(len + 100, GFP_ATOMIC); | |
11440 | if (!msg) { | |
11441 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
11442 | return; | |
11443 | } | |
5e760230 | 11444 | |
37c73b5f BG |
11445 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
11446 | if (!hdr) | |
11447 | goto nla_put_failure; | |
5e760230 | 11448 | |
37c73b5f BG |
11449 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11450 | (freq && | |
11451 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
11452 | (sig_dbm && | |
11453 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
11454 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
11455 | goto nla_put_failure; | |
5e760230 | 11456 | |
37c73b5f | 11457 | genlmsg_end(msg, hdr); |
5e760230 | 11458 | |
37c73b5f BG |
11459 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); |
11460 | } | |
11461 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
5e760230 JB |
11462 | return; |
11463 | ||
11464 | nla_put_failure: | |
37c73b5f BG |
11465 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
11466 | if (hdr) | |
11467 | genlmsg_cancel(msg, hdr); | |
5e760230 JB |
11468 | nlmsg_free(msg); |
11469 | } | |
11470 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
11471 | ||
cd8f7cb4 JB |
11472 | #ifdef CONFIG_PM |
11473 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, | |
11474 | struct cfg80211_wowlan_wakeup *wakeup, | |
11475 | gfp_t gfp) | |
11476 | { | |
f26cbf40 | 11477 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
cd8f7cb4 JB |
11478 | struct sk_buff *msg; |
11479 | void *hdr; | |
9c90a9f6 | 11480 | int size = 200; |
cd8f7cb4 JB |
11481 | |
11482 | trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); | |
11483 | ||
11484 | if (wakeup) | |
11485 | size += wakeup->packet_present_len; | |
11486 | ||
11487 | msg = nlmsg_new(size, gfp); | |
11488 | if (!msg) | |
11489 | return; | |
11490 | ||
11491 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); | |
11492 | if (!hdr) | |
11493 | goto free_msg; | |
11494 | ||
11495 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11496 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
11497 | goto free_msg; | |
11498 | ||
11499 | if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
11500 | wdev->netdev->ifindex)) | |
11501 | goto free_msg; | |
11502 | ||
11503 | if (wakeup) { | |
11504 | struct nlattr *reasons; | |
11505 | ||
11506 | reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
7fa322c8 JB |
11507 | if (!reasons) |
11508 | goto free_msg; | |
cd8f7cb4 JB |
11509 | |
11510 | if (wakeup->disconnect && | |
11511 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) | |
11512 | goto free_msg; | |
11513 | if (wakeup->magic_pkt && | |
11514 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) | |
11515 | goto free_msg; | |
11516 | if (wakeup->gtk_rekey_failure && | |
11517 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) | |
11518 | goto free_msg; | |
11519 | if (wakeup->eap_identity_req && | |
11520 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) | |
11521 | goto free_msg; | |
11522 | if (wakeup->four_way_handshake && | |
11523 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) | |
11524 | goto free_msg; | |
11525 | if (wakeup->rfkill_release && | |
11526 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) | |
11527 | goto free_msg; | |
11528 | ||
11529 | if (wakeup->pattern_idx >= 0 && | |
11530 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
11531 | wakeup->pattern_idx)) | |
11532 | goto free_msg; | |
11533 | ||
ae917c9f JB |
11534 | if (wakeup->tcp_match && |
11535 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH)) | |
11536 | goto free_msg; | |
2a0e047e | 11537 | |
ae917c9f JB |
11538 | if (wakeup->tcp_connlost && |
11539 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST)) | |
11540 | goto free_msg; | |
2a0e047e | 11541 | |
ae917c9f JB |
11542 | if (wakeup->tcp_nomoretokens && |
11543 | nla_put_flag(msg, | |
11544 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS)) | |
11545 | goto free_msg; | |
2a0e047e | 11546 | |
cd8f7cb4 JB |
11547 | if (wakeup->packet) { |
11548 | u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; | |
11549 | u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; | |
11550 | ||
11551 | if (!wakeup->packet_80211) { | |
11552 | pkt_attr = | |
11553 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; | |
11554 | len_attr = | |
11555 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; | |
11556 | } | |
11557 | ||
11558 | if (wakeup->packet_len && | |
11559 | nla_put_u32(msg, len_attr, wakeup->packet_len)) | |
11560 | goto free_msg; | |
11561 | ||
11562 | if (nla_put(msg, pkt_attr, wakeup->packet_present_len, | |
11563 | wakeup->packet)) | |
11564 | goto free_msg; | |
11565 | } | |
11566 | ||
11567 | nla_nest_end(msg, reasons); | |
11568 | } | |
11569 | ||
9c90a9f6 | 11570 | genlmsg_end(msg, hdr); |
cd8f7cb4 | 11571 | |
68eb5503 | 11572 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11573 | NL80211_MCGRP_MLME, gfp); |
cd8f7cb4 JB |
11574 | return; |
11575 | ||
11576 | free_msg: | |
11577 | nlmsg_free(msg); | |
11578 | } | |
11579 | EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); | |
11580 | #endif | |
11581 | ||
3475b094 JM |
11582 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
11583 | enum nl80211_tdls_operation oper, | |
11584 | u16 reason_code, gfp_t gfp) | |
11585 | { | |
11586 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 11587 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
3475b094 JM |
11588 | struct sk_buff *msg; |
11589 | void *hdr; | |
3475b094 JM |
11590 | |
11591 | trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, | |
11592 | reason_code); | |
11593 | ||
11594 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11595 | if (!msg) | |
11596 | return; | |
11597 | ||
11598 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); | |
11599 | if (!hdr) { | |
11600 | nlmsg_free(msg); | |
11601 | return; | |
11602 | } | |
11603 | ||
11604 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11605 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
11606 | nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || | |
11607 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || | |
11608 | (reason_code > 0 && | |
11609 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) | |
11610 | goto nla_put_failure; | |
11611 | ||
9c90a9f6 | 11612 | genlmsg_end(msg, hdr); |
3475b094 | 11613 | |
68eb5503 | 11614 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11615 | NL80211_MCGRP_MLME, gfp); |
3475b094 JM |
11616 | return; |
11617 | ||
11618 | nla_put_failure: | |
11619 | genlmsg_cancel(msg, hdr); | |
11620 | nlmsg_free(msg); | |
11621 | } | |
11622 | EXPORT_SYMBOL(cfg80211_tdls_oper_request); | |
11623 | ||
026331c4 JM |
11624 | static int nl80211_netlink_notify(struct notifier_block * nb, |
11625 | unsigned long state, | |
11626 | void *_notify) | |
11627 | { | |
11628 | struct netlink_notify *notify = _notify; | |
11629 | struct cfg80211_registered_device *rdev; | |
11630 | struct wireless_dev *wdev; | |
37c73b5f | 11631 | struct cfg80211_beacon_registration *reg, *tmp; |
026331c4 JM |
11632 | |
11633 | if (state != NETLINK_URELEASE) | |
11634 | return NOTIFY_DONE; | |
11635 | ||
11636 | rcu_read_lock(); | |
11637 | ||
5e760230 | 11638 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
78f22b6a JB |
11639 | bool schedule_destroy_work = false; |
11640 | ||
11641 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) { | |
15e47304 | 11642 | cfg80211_mlme_unregister_socket(wdev, notify->portid); |
37c73b5f | 11643 | |
78f22b6a JB |
11644 | if (wdev->owner_nlportid == notify->portid) |
11645 | schedule_destroy_work = true; | |
11646 | } | |
11647 | ||
37c73b5f BG |
11648 | spin_lock_bh(&rdev->beacon_registrations_lock); |
11649 | list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, | |
11650 | list) { | |
11651 | if (reg->nlportid == notify->portid) { | |
11652 | list_del(®->list); | |
11653 | kfree(reg); | |
11654 | break; | |
11655 | } | |
11656 | } | |
11657 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
78f22b6a JB |
11658 | |
11659 | if (schedule_destroy_work) { | |
11660 | struct cfg80211_iface_destroy *destroy; | |
11661 | ||
11662 | destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC); | |
11663 | if (destroy) { | |
11664 | destroy->nlportid = notify->portid; | |
11665 | spin_lock(&rdev->destroy_list_lock); | |
11666 | list_add(&destroy->list, &rdev->destroy_list); | |
11667 | spin_unlock(&rdev->destroy_list_lock); | |
11668 | schedule_work(&rdev->destroy_work); | |
11669 | } | |
11670 | } | |
5e760230 | 11671 | } |
026331c4 JM |
11672 | |
11673 | rcu_read_unlock(); | |
11674 | ||
6784c7db | 11675 | return NOTIFY_OK; |
026331c4 JM |
11676 | } |
11677 | ||
11678 | static struct notifier_block nl80211_netlink_notifier = { | |
11679 | .notifier_call = nl80211_netlink_notify, | |
11680 | }; | |
11681 | ||
355199e0 JM |
11682 | void cfg80211_ft_event(struct net_device *netdev, |
11683 | struct cfg80211_ft_event_params *ft_event) | |
11684 | { | |
11685 | struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; | |
f26cbf40 | 11686 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
355199e0 JM |
11687 | struct sk_buff *msg; |
11688 | void *hdr; | |
355199e0 JM |
11689 | |
11690 | trace_cfg80211_ft_event(wiphy, netdev, ft_event); | |
11691 | ||
11692 | if (!ft_event->target_ap) | |
11693 | return; | |
11694 | ||
11695 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11696 | if (!msg) | |
11697 | return; | |
11698 | ||
11699 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT); | |
ae917c9f JB |
11700 | if (!hdr) |
11701 | goto out; | |
355199e0 | 11702 | |
ae917c9f JB |
11703 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11704 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11705 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap)) | |
11706 | goto out; | |
355199e0 | 11707 | |
ae917c9f JB |
11708 | if (ft_event->ies && |
11709 | nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies)) | |
11710 | goto out; | |
11711 | if (ft_event->ric_ies && | |
11712 | nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len, | |
11713 | ft_event->ric_ies)) | |
11714 | goto out; | |
355199e0 | 11715 | |
9c90a9f6 | 11716 | genlmsg_end(msg, hdr); |
355199e0 | 11717 | |
68eb5503 | 11718 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11719 | NL80211_MCGRP_MLME, GFP_KERNEL); |
ae917c9f JB |
11720 | return; |
11721 | out: | |
11722 | nlmsg_free(msg); | |
355199e0 JM |
11723 | } |
11724 | EXPORT_SYMBOL(cfg80211_ft_event); | |
11725 | ||
5de17984 AS |
11726 | void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) |
11727 | { | |
11728 | struct cfg80211_registered_device *rdev; | |
11729 | struct sk_buff *msg; | |
11730 | void *hdr; | |
11731 | u32 nlportid; | |
11732 | ||
f26cbf40 | 11733 | rdev = wiphy_to_rdev(wdev->wiphy); |
5de17984 AS |
11734 | if (!rdev->crit_proto_nlportid) |
11735 | return; | |
11736 | ||
11737 | nlportid = rdev->crit_proto_nlportid; | |
11738 | rdev->crit_proto_nlportid = 0; | |
11739 | ||
11740 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
11741 | if (!msg) | |
11742 | return; | |
11743 | ||
11744 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); | |
11745 | if (!hdr) | |
11746 | goto nla_put_failure; | |
11747 | ||
11748 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11749 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
11750 | goto nla_put_failure; | |
11751 | ||
11752 | genlmsg_end(msg, hdr); | |
11753 | ||
11754 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
11755 | return; | |
11756 | ||
11757 | nla_put_failure: | |
11758 | if (hdr) | |
11759 | genlmsg_cancel(msg, hdr); | |
11760 | nlmsg_free(msg); | |
11761 | ||
11762 | } | |
11763 | EXPORT_SYMBOL(cfg80211_crit_proto_stopped); | |
11764 | ||
348baf0e JB |
11765 | void nl80211_send_ap_stopped(struct wireless_dev *wdev) |
11766 | { | |
11767 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11768 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
348baf0e JB |
11769 | struct sk_buff *msg; |
11770 | void *hdr; | |
11771 | ||
11772 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11773 | if (!msg) | |
11774 | return; | |
11775 | ||
11776 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP); | |
11777 | if (!hdr) | |
11778 | goto out; | |
11779 | ||
11780 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
11781 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) || | |
11782 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
11783 | goto out; | |
11784 | ||
11785 | genlmsg_end(msg, hdr); | |
11786 | ||
11787 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0, | |
11788 | NL80211_MCGRP_MLME, GFP_KERNEL); | |
11789 | return; | |
11790 | out: | |
11791 | nlmsg_free(msg); | |
11792 | } | |
11793 | ||
55682965 JB |
11794 | /* initialisation/exit functions */ |
11795 | ||
11796 | int nl80211_init(void) | |
11797 | { | |
0d63cbb5 | 11798 | int err; |
55682965 | 11799 | |
2a94fe48 JB |
11800 | err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops, |
11801 | nl80211_mcgrps); | |
55682965 JB |
11802 | if (err) |
11803 | return err; | |
11804 | ||
026331c4 JM |
11805 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
11806 | if (err) | |
11807 | goto err_out; | |
11808 | ||
55682965 JB |
11809 | return 0; |
11810 | err_out: | |
11811 | genl_unregister_family(&nl80211_fam); | |
11812 | return err; | |
11813 | } | |
11814 | ||
11815 | void nl80211_exit(void) | |
11816 | { | |
026331c4 | 11817 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
11818 | genl_unregister_family(&nl80211_fam); |
11819 | } |