2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
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>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
26 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* internal helper: get rdev and dev */
50 static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
56 if (!attrs[NL80211_ATTR_IFINDEX])
59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
60 *dev = dev_get_by_index(netns, ifindex);
64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
67 return PTR_ERR(*rdev);
73 /* policy for the attributes */
74 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
75 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
78 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
79 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
80 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
81 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
82 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
84 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
87 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
88 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
91 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
92 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
94 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
95 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
96 .len = WLAN_MAX_KEY_LEN },
97 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
98 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
99 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
100 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
101 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
103 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
104 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
105 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
106 .len = IEEE80211_MAX_DATA_LEN },
107 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
108 .len = IEEE80211_MAX_DATA_LEN },
109 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
110 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
111 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
112 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
114 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
115 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
116 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
117 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_MESH_ID_LEN },
119 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
121 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
122 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
124 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
125 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
128 .len = NL80211_MAX_SUPP_RATES },
129 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
131 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
132 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
134 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
136 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
137 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
139 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
140 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
142 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
143 .len = IEEE80211_MAX_SSID_LEN },
144 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
145 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
146 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
147 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
148 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
149 [NL80211_ATTR_STA_FLAGS2] = {
150 .len = sizeof(struct nl80211_sta_flag_update),
152 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
153 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
154 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
155 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
156 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
157 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
158 [NL80211_ATTR_PID] = { .type = NLA_U32 },
159 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
160 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
161 .len = WLAN_PMKID_LEN },
162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
198 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
199 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
200 .len = IEEE80211_MAX_DATA_LEN },
201 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
202 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
203 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
204 .len = NL80211_HT_CAPABILITY_LEN
206 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
207 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
208 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
211 /* policy for the key attributes */
212 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
213 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
214 [NL80211_KEY_IDX] = { .type = NLA_U8 },
215 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
216 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
217 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
218 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
219 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
220 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
223 /* policy for the key default flags */
224 static const struct nla_policy
225 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
226 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
227 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
230 /* policy for WoWLAN attributes */
231 static const struct nla_policy
232 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
233 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
235 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
236 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
237 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
239 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
240 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
243 /* policy for GTK rekey offload attributes */
244 static const struct nla_policy
245 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
246 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
247 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
248 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
251 static const struct nla_policy
252 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
253 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_SSID_LEN },
257 /* ifidx get helper */
258 static int nl80211_get_ifidx(struct netlink_callback *cb)
262 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
263 nl80211_fam.attrbuf, nl80211_fam.maxattr,
268 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
271 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
277 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
278 struct netlink_callback *cb,
279 struct cfg80211_registered_device **rdev,
280 struct net_device **dev)
282 int ifidx = cb->args[0];
286 ifidx = nl80211_get_ifidx(cb);
294 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
300 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
302 err = PTR_ERR(*rdev);
312 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
314 cfg80211_unlock_rdev(rdev);
319 static bool is_valid_ie_attr(const struct nlattr *attr)
327 pos = nla_data(attr);
348 /* message building helper */
349 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
352 /* since there is no private header just add the generic one */
353 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
356 static int nl80211_msg_put_channel(struct sk_buff *msg,
357 struct ieee80211_channel *chan)
359 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
362 if (chan->flags & IEEE80211_CHAN_DISABLED)
363 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
364 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
365 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
366 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
367 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
368 if (chan->flags & IEEE80211_CHAN_RADAR)
369 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
371 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
372 DBM_TO_MBM(chan->max_power));
380 /* netlink command implementations */
387 bool def_uni, def_multi;
390 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
392 struct nlattr *tb[NL80211_KEY_MAX + 1];
393 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
398 k->def = !!tb[NL80211_KEY_DEFAULT];
399 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
408 if (tb[NL80211_KEY_IDX])
409 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
411 if (tb[NL80211_KEY_DATA]) {
412 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
413 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
416 if (tb[NL80211_KEY_SEQ]) {
417 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
418 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
421 if (tb[NL80211_KEY_CIPHER])
422 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
424 if (tb[NL80211_KEY_TYPE]) {
425 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
426 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
430 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
431 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
432 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
433 tb[NL80211_KEY_DEFAULT_TYPES],
434 nl80211_key_default_policy);
438 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
439 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
445 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
447 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
448 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
449 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
452 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
453 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
454 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
457 if (info->attrs[NL80211_ATTR_KEY_IDX])
458 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
460 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
461 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
463 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
464 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
473 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
474 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
475 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
479 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
480 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
481 int err = nla_parse_nested(
482 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
483 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
484 nl80211_key_default_policy);
488 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
489 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
495 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
499 memset(k, 0, sizeof(*k));
503 if (info->attrs[NL80211_ATTR_KEY])
504 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
506 err = nl80211_parse_key_old(info, k);
511 if (k->def && k->defmgmt)
515 if (k->def_uni || !k->def_multi)
521 if (k->idx < 4 || k->idx > 5)
524 if (k->idx < 0 || k->idx > 3)
527 if (k->idx < 0 || k->idx > 5)
535 static struct cfg80211_cached_keys *
536 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
539 struct key_parse parse;
541 struct cfg80211_cached_keys *result;
542 int rem, err, def = 0;
544 result = kzalloc(sizeof(*result), GFP_KERNEL);
546 return ERR_PTR(-ENOMEM);
549 result->defmgmt = -1;
551 nla_for_each_nested(key, keys, rem) {
552 memset(&parse, 0, sizeof(parse));
555 err = nl80211_parse_key_new(key, &parse);
561 if (parse.idx < 0 || parse.idx > 4)
567 result->def = parse.idx;
568 if (!parse.def_uni || !parse.def_multi)
570 } else if (parse.defmgmt)
572 err = cfg80211_validate_key_settings(rdev, &parse.p,
573 parse.idx, false, NULL);
576 result->params[parse.idx].cipher = parse.p.cipher;
577 result->params[parse.idx].key_len = parse.p.key_len;
578 result->params[parse.idx].key = result->data[parse.idx];
579 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
588 static int nl80211_key_allowed(struct wireless_dev *wdev)
590 ASSERT_WDEV_LOCK(wdev);
592 switch (wdev->iftype) {
593 case NL80211_IFTYPE_AP:
594 case NL80211_IFTYPE_AP_VLAN:
595 case NL80211_IFTYPE_P2P_GO:
596 case NL80211_IFTYPE_MESH_POINT:
598 case NL80211_IFTYPE_ADHOC:
599 if (!wdev->current_bss)
602 case NL80211_IFTYPE_STATION:
603 case NL80211_IFTYPE_P2P_CLIENT:
604 if (wdev->sme_state != CFG80211_SME_CONNECTED)
614 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
616 struct nlattr *nl_modes = nla_nest_start(msg, attr);
620 goto nla_put_failure;
625 NLA_PUT_FLAG(msg, i);
630 nla_nest_end(msg, nl_modes);
637 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
640 struct nlattr *nl_combis;
643 nl_combis = nla_nest_start(msg,
644 NL80211_ATTR_INTERFACE_COMBINATIONS);
646 goto nla_put_failure;
648 for (i = 0; i < wiphy->n_iface_combinations; i++) {
649 const struct ieee80211_iface_combination *c;
650 struct nlattr *nl_combi, *nl_limits;
652 c = &wiphy->iface_combinations[i];
654 nl_combi = nla_nest_start(msg, i + 1);
656 goto nla_put_failure;
658 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
660 goto nla_put_failure;
662 for (j = 0; j < c->n_limits; j++) {
663 struct nlattr *nl_limit;
665 nl_limit = nla_nest_start(msg, j + 1);
667 goto nla_put_failure;
668 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
670 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
672 goto nla_put_failure;
673 nla_nest_end(msg, nl_limit);
676 nla_nest_end(msg, nl_limits);
678 if (c->beacon_int_infra_match)
680 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
681 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
682 c->num_different_channels);
683 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
686 nla_nest_end(msg, nl_combi);
689 nla_nest_end(msg, nl_combis);
696 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
697 struct cfg80211_registered_device *dev)
700 struct nlattr *nl_bands, *nl_band;
701 struct nlattr *nl_freqs, *nl_freq;
702 struct nlattr *nl_rates, *nl_rate;
703 struct nlattr *nl_cmds;
704 enum ieee80211_band band;
705 struct ieee80211_channel *chan;
706 struct ieee80211_rate *rate;
708 const struct ieee80211_txrx_stypes *mgmt_stypes =
709 dev->wiphy.mgmt_stypes;
711 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
716 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
718 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
719 cfg80211_rdev_list_generation);
721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
722 dev->wiphy.retry_short);
723 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
724 dev->wiphy.retry_long);
725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
726 dev->wiphy.frag_threshold);
727 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
728 dev->wiphy.rts_threshold);
729 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
730 dev->wiphy.coverage_class);
731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
732 dev->wiphy.max_scan_ssids);
733 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
734 dev->wiphy.max_sched_scan_ssids);
735 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
736 dev->wiphy.max_scan_ie_len);
737 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
738 dev->wiphy.max_sched_scan_ie_len);
739 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
740 dev->wiphy.max_match_sets);
742 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
744 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
746 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
747 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
748 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
749 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
750 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
751 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
752 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
753 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
755 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
756 sizeof(u32) * dev->wiphy.n_cipher_suites,
757 dev->wiphy.cipher_suites);
759 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
760 dev->wiphy.max_num_pmkids);
762 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
763 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
766 dev->wiphy.available_antennas_tx);
767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
768 dev->wiphy.available_antennas_rx);
770 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
771 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
772 dev->wiphy.probe_resp_offload);
774 if ((dev->wiphy.available_antennas_tx ||
775 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
776 u32 tx_ant = 0, rx_ant = 0;
778 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
781 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
785 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
786 dev->wiphy.interface_modes))
787 goto nla_put_failure;
789 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
791 goto nla_put_failure;
793 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
794 if (!dev->wiphy.bands[band])
797 nl_band = nla_nest_start(msg, band);
799 goto nla_put_failure;
802 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
803 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
804 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
805 &dev->wiphy.bands[band]->ht_cap.mcs);
806 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
807 dev->wiphy.bands[band]->ht_cap.cap);
808 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
809 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
810 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
811 dev->wiphy.bands[band]->ht_cap.ampdu_density);
814 /* add frequencies */
815 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
817 goto nla_put_failure;
819 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
820 nl_freq = nla_nest_start(msg, i);
822 goto nla_put_failure;
824 chan = &dev->wiphy.bands[band]->channels[i];
826 if (nl80211_msg_put_channel(msg, chan))
827 goto nla_put_failure;
829 nla_nest_end(msg, nl_freq);
832 nla_nest_end(msg, nl_freqs);
835 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
837 goto nla_put_failure;
839 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
840 nl_rate = nla_nest_start(msg, i);
842 goto nla_put_failure;
844 rate = &dev->wiphy.bands[band]->bitrates[i];
845 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
847 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
849 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
851 nla_nest_end(msg, nl_rate);
854 nla_nest_end(msg, nl_rates);
856 nla_nest_end(msg, nl_band);
858 nla_nest_end(msg, nl_bands);
860 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
862 goto nla_put_failure;
867 if (dev->ops->op) { \
869 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
873 CMD(add_virtual_intf, NEW_INTERFACE);
874 CMD(change_virtual_intf, SET_INTERFACE);
875 CMD(add_key, NEW_KEY);
876 CMD(start_ap, START_AP);
877 CMD(add_station, NEW_STATION);
878 CMD(add_mpath, NEW_MPATH);
879 CMD(update_mesh_config, SET_MESH_CONFIG);
880 CMD(change_bss, SET_BSS);
881 CMD(auth, AUTHENTICATE);
882 CMD(assoc, ASSOCIATE);
883 CMD(deauth, DEAUTHENTICATE);
884 CMD(disassoc, DISASSOCIATE);
885 CMD(join_ibss, JOIN_IBSS);
886 CMD(join_mesh, JOIN_MESH);
887 CMD(set_pmksa, SET_PMKSA);
888 CMD(del_pmksa, DEL_PMKSA);
889 CMD(flush_pmksa, FLUSH_PMKSA);
890 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
891 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
892 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
894 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
895 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
897 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
899 CMD(set_channel, SET_CHANNEL);
900 CMD(set_wds_peer, SET_WDS_PEER);
901 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
902 CMD(tdls_mgmt, TDLS_MGMT);
903 CMD(tdls_oper, TDLS_OPER);
905 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
906 CMD(sched_scan_start, START_SCHED_SCAN);
907 CMD(probe_client, PROBE_CLIENT);
908 CMD(set_noack_map, SET_NOACK_MAP);
909 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
911 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
914 #ifdef CONFIG_NL80211_TESTMODE
915 CMD(testmode_cmd, TESTMODE);
920 if (dev->ops->connect || dev->ops->auth) {
922 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
925 if (dev->ops->disconnect || dev->ops->deauth) {
927 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
930 nla_nest_end(msg, nl_cmds);
932 if (dev->ops->remain_on_channel &&
933 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
934 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
935 dev->wiphy.max_remain_on_channel_duration);
937 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
938 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
942 struct nlattr *nl_ftypes, *nl_ifs;
943 enum nl80211_iftype ift;
945 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
947 goto nla_put_failure;
949 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
950 nl_ftypes = nla_nest_start(msg, ift);
952 goto nla_put_failure;
954 stypes = mgmt_stypes[ift].tx;
957 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
958 (i << 4) | IEEE80211_FTYPE_MGMT);
962 nla_nest_end(msg, nl_ftypes);
965 nla_nest_end(msg, nl_ifs);
967 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
969 goto nla_put_failure;
971 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
972 nl_ftypes = nla_nest_start(msg, ift);
974 goto nla_put_failure;
976 stypes = mgmt_stypes[ift].rx;
979 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
980 (i << 4) | IEEE80211_FTYPE_MGMT);
984 nla_nest_end(msg, nl_ftypes);
986 nla_nest_end(msg, nl_ifs);
989 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
990 struct nlattr *nl_wowlan;
992 nl_wowlan = nla_nest_start(msg,
993 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
995 goto nla_put_failure;
997 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
998 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
999 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
1000 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
1001 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1002 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
1003 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1004 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1005 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1006 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1007 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1008 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1009 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1010 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1011 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1012 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
1013 if (dev->wiphy.wowlan.n_patterns) {
1014 struct nl80211_wowlan_pattern_support pat = {
1015 .max_patterns = dev->wiphy.wowlan.n_patterns,
1017 dev->wiphy.wowlan.pattern_min_len,
1019 dev->wiphy.wowlan.pattern_max_len,
1021 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1025 nla_nest_end(msg, nl_wowlan);
1028 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1029 dev->wiphy.software_iftypes))
1030 goto nla_put_failure;
1032 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1033 goto nla_put_failure;
1035 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1036 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1037 dev->wiphy.ap_sme_capa);
1039 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1041 if (dev->wiphy.ht_capa_mod_mask)
1042 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1043 sizeof(*dev->wiphy.ht_capa_mod_mask),
1044 dev->wiphy.ht_capa_mod_mask);
1046 return genlmsg_end(msg, hdr);
1049 genlmsg_cancel(msg, hdr);
1053 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1056 int start = cb->args[0];
1057 struct cfg80211_registered_device *dev;
1059 mutex_lock(&cfg80211_mutex);
1060 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1061 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1065 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1066 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1072 mutex_unlock(&cfg80211_mutex);
1079 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1081 struct sk_buff *msg;
1082 struct cfg80211_registered_device *dev = info->user_ptr[0];
1084 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1088 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1093 return genlmsg_reply(msg, info);
1096 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1097 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1098 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1099 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1100 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1101 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1104 static int parse_txq_params(struct nlattr *tb[],
1105 struct ieee80211_txq_params *txq_params)
1107 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1108 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1109 !tb[NL80211_TXQ_ATTR_AIFS])
1112 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1113 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1114 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1115 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1116 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1118 if (txq_params->ac >= NL80211_NUM_ACS)
1124 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1127 * You can only set the channel explicitly for AP, mesh
1128 * and WDS type interfaces; all others have their channel
1129 * managed via their respective "establish a connection"
1130 * command (connect, join, ...)
1132 * Monitors are special as they are normally slaved to
1133 * whatever else is going on, so they behave as though
1134 * you tried setting the wiphy channel itself.
1137 wdev->iftype == NL80211_IFTYPE_AP ||
1138 wdev->iftype == NL80211_IFTYPE_WDS ||
1139 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1140 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1141 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1144 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1145 struct wireless_dev *wdev,
1146 struct genl_info *info)
1148 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1152 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1155 if (!nl80211_can_set_dev_channel(wdev))
1158 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1159 channel_type = nla_get_u32(info->attrs[
1160 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1161 if (channel_type != NL80211_CHAN_NO_HT &&
1162 channel_type != NL80211_CHAN_HT20 &&
1163 channel_type != NL80211_CHAN_HT40PLUS &&
1164 channel_type != NL80211_CHAN_HT40MINUS)
1168 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1170 mutex_lock(&rdev->devlist_mtx);
1173 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1176 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1178 mutex_unlock(&rdev->devlist_mtx);
1183 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1186 struct net_device *netdev = info->user_ptr[1];
1188 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1191 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1194 struct net_device *dev = info->user_ptr[1];
1195 struct wireless_dev *wdev = dev->ieee80211_ptr;
1198 if (!info->attrs[NL80211_ATTR_MAC])
1201 if (netif_running(dev))
1204 if (!rdev->ops->set_wds_peer)
1207 if (wdev->iftype != NL80211_IFTYPE_WDS)
1210 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1211 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1215 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1217 struct cfg80211_registered_device *rdev;
1218 struct net_device *netdev = NULL;
1219 struct wireless_dev *wdev;
1220 int result = 0, rem_txq_params = 0;
1221 struct nlattr *nl_txq_params;
1223 u8 retry_short = 0, retry_long = 0;
1224 u32 frag_threshold = 0, rts_threshold = 0;
1225 u8 coverage_class = 0;
1228 * Try to find the wiphy and netdev. Normally this
1229 * function shouldn't need the netdev, but this is
1230 * done for backward compatibility -- previously
1231 * setting the channel was done per wiphy, but now
1232 * it is per netdev. Previous userland like hostapd
1233 * also passed a netdev to set_wiphy, so that it is
1234 * possible to let that go to the right netdev!
1236 mutex_lock(&cfg80211_mutex);
1238 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1239 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1241 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1242 if (netdev && netdev->ieee80211_ptr) {
1243 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1244 mutex_lock(&rdev->mtx);
1250 rdev = __cfg80211_rdev_from_info(info);
1252 mutex_unlock(&cfg80211_mutex);
1253 return PTR_ERR(rdev);
1259 mutex_lock(&rdev->mtx);
1260 } else if (netif_running(netdev) &&
1261 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1262 wdev = netdev->ieee80211_ptr;
1267 * end workaround code, by now the rdev is available
1268 * and locked, and wdev may or may not be NULL.
1271 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1272 result = cfg80211_dev_rename(
1273 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1275 mutex_unlock(&cfg80211_mutex);
1280 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1281 struct ieee80211_txq_params txq_params;
1282 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1284 if (!rdev->ops->set_txq_params) {
1285 result = -EOPNOTSUPP;
1294 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1295 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1300 if (!netif_running(netdev)) {
1305 nla_for_each_nested(nl_txq_params,
1306 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1308 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1309 nla_data(nl_txq_params),
1310 nla_len(nl_txq_params),
1312 result = parse_txq_params(tb, &txq_params);
1316 result = rdev->ops->set_txq_params(&rdev->wiphy,
1324 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1325 result = __nl80211_set_channel(rdev, wdev, info);
1330 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1331 enum nl80211_tx_power_setting type;
1334 if (!rdev->ops->set_tx_power) {
1335 result = -EOPNOTSUPP;
1339 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1340 type = nla_get_u32(info->attrs[idx]);
1342 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1343 (type != NL80211_TX_POWER_AUTOMATIC)) {
1348 if (type != NL80211_TX_POWER_AUTOMATIC) {
1349 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1350 mbm = nla_get_u32(info->attrs[idx]);
1353 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1358 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1359 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1361 if ((!rdev->wiphy.available_antennas_tx &&
1362 !rdev->wiphy.available_antennas_rx) ||
1363 !rdev->ops->set_antenna) {
1364 result = -EOPNOTSUPP;
1368 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1369 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1371 /* reject antenna configurations which don't match the
1372 * available antenna masks, except for the "all" mask */
1373 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1374 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1379 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1380 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1382 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1389 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1390 retry_short = nla_get_u8(
1391 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1392 if (retry_short == 0) {
1396 changed |= WIPHY_PARAM_RETRY_SHORT;
1399 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1400 retry_long = nla_get_u8(
1401 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1402 if (retry_long == 0) {
1406 changed |= WIPHY_PARAM_RETRY_LONG;
1409 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1410 frag_threshold = nla_get_u32(
1411 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1412 if (frag_threshold < 256) {
1416 if (frag_threshold != (u32) -1) {
1418 * Fragments (apart from the last one) are required to
1419 * have even length. Make the fragmentation code
1420 * simpler by stripping LSB should someone try to use
1421 * odd threshold value.
1423 frag_threshold &= ~0x1;
1425 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1428 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1429 rts_threshold = nla_get_u32(
1430 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1431 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1434 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1435 coverage_class = nla_get_u8(
1436 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1437 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1441 u8 old_retry_short, old_retry_long;
1442 u32 old_frag_threshold, old_rts_threshold;
1443 u8 old_coverage_class;
1445 if (!rdev->ops->set_wiphy_params) {
1446 result = -EOPNOTSUPP;
1450 old_retry_short = rdev->wiphy.retry_short;
1451 old_retry_long = rdev->wiphy.retry_long;
1452 old_frag_threshold = rdev->wiphy.frag_threshold;
1453 old_rts_threshold = rdev->wiphy.rts_threshold;
1454 old_coverage_class = rdev->wiphy.coverage_class;
1456 if (changed & WIPHY_PARAM_RETRY_SHORT)
1457 rdev->wiphy.retry_short = retry_short;
1458 if (changed & WIPHY_PARAM_RETRY_LONG)
1459 rdev->wiphy.retry_long = retry_long;
1460 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1461 rdev->wiphy.frag_threshold = frag_threshold;
1462 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1463 rdev->wiphy.rts_threshold = rts_threshold;
1464 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1465 rdev->wiphy.coverage_class = coverage_class;
1467 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1469 rdev->wiphy.retry_short = old_retry_short;
1470 rdev->wiphy.retry_long = old_retry_long;
1471 rdev->wiphy.frag_threshold = old_frag_threshold;
1472 rdev->wiphy.rts_threshold = old_rts_threshold;
1473 rdev->wiphy.coverage_class = old_coverage_class;
1478 mutex_unlock(&rdev->mtx);
1485 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1486 struct cfg80211_registered_device *rdev,
1487 struct net_device *dev)
1491 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1495 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1496 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1497 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1498 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1500 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1501 rdev->devlist_generation ^
1502 (cfg80211_rdev_list_generation << 2));
1504 if (rdev->ops->get_channel) {
1505 struct ieee80211_channel *chan;
1506 enum nl80211_channel_type channel_type;
1508 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
1510 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
1512 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1517 return genlmsg_end(msg, hdr);
1520 genlmsg_cancel(msg, hdr);
1524 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1528 int wp_start = cb->args[0];
1529 int if_start = cb->args[1];
1530 struct cfg80211_registered_device *rdev;
1531 struct wireless_dev *wdev;
1533 mutex_lock(&cfg80211_mutex);
1534 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1535 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1537 if (wp_idx < wp_start) {
1543 mutex_lock(&rdev->devlist_mtx);
1544 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1545 if (if_idx < if_start) {
1549 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1550 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1551 rdev, wdev->netdev) < 0) {
1552 mutex_unlock(&rdev->devlist_mtx);
1557 mutex_unlock(&rdev->devlist_mtx);
1562 mutex_unlock(&cfg80211_mutex);
1564 cb->args[0] = wp_idx;
1565 cb->args[1] = if_idx;
1570 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1572 struct sk_buff *msg;
1573 struct cfg80211_registered_device *dev = info->user_ptr[0];
1574 struct net_device *netdev = info->user_ptr[1];
1576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1580 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1586 return genlmsg_reply(msg, info);
1589 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1590 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1591 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1592 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1593 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1594 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1597 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1599 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1607 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1608 nla, mntr_flags_policy))
1611 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1613 *mntrflags |= (1<<flag);
1618 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1619 struct net_device *netdev, u8 use_4addr,
1620 enum nl80211_iftype iftype)
1623 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1629 case NL80211_IFTYPE_AP_VLAN:
1630 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1633 case NL80211_IFTYPE_STATION:
1634 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1644 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1647 struct vif_params params;
1649 enum nl80211_iftype otype, ntype;
1650 struct net_device *dev = info->user_ptr[1];
1651 u32 _flags, *flags = NULL;
1652 bool change = false;
1654 memset(¶ms, 0, sizeof(params));
1656 otype = ntype = dev->ieee80211_ptr->iftype;
1658 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1659 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1662 if (ntype > NL80211_IFTYPE_MAX)
1666 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1667 struct wireless_dev *wdev = dev->ieee80211_ptr;
1669 if (ntype != NL80211_IFTYPE_MESH_POINT)
1671 if (netif_running(dev))
1675 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1676 IEEE80211_MAX_MESH_ID_LEN);
1677 wdev->mesh_id_up_len =
1678 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1679 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1680 wdev->mesh_id_up_len);
1684 if (info->attrs[NL80211_ATTR_4ADDR]) {
1685 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1687 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1691 params.use_4addr = -1;
1694 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1695 if (ntype != NL80211_IFTYPE_MONITOR)
1697 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1707 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1711 if (!err && params.use_4addr != -1)
1712 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1717 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1720 struct vif_params params;
1721 struct net_device *dev;
1723 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1726 memset(¶ms, 0, sizeof(params));
1728 if (!info->attrs[NL80211_ATTR_IFNAME])
1731 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1732 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1733 if (type > NL80211_IFTYPE_MAX)
1737 if (!rdev->ops->add_virtual_intf ||
1738 !(rdev->wiphy.interface_modes & (1 << type)))
1741 if (info->attrs[NL80211_ATTR_4ADDR]) {
1742 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1743 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1748 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1749 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1751 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1752 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1753 type, err ? NULL : &flags, ¶ms);
1755 return PTR_ERR(dev);
1757 if (type == NL80211_IFTYPE_MESH_POINT &&
1758 info->attrs[NL80211_ATTR_MESH_ID]) {
1759 struct wireless_dev *wdev = dev->ieee80211_ptr;
1762 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1763 IEEE80211_MAX_MESH_ID_LEN);
1764 wdev->mesh_id_up_len =
1765 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1766 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1767 wdev->mesh_id_up_len);
1774 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1777 struct net_device *dev = info->user_ptr[1];
1779 if (!rdev->ops->del_virtual_intf)
1782 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1785 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1788 struct net_device *dev = info->user_ptr[1];
1791 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1794 if (!rdev->ops->set_noack_map)
1797 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1799 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1802 struct get_key_cookie {
1803 struct sk_buff *msg;
1808 static void get_key_callback(void *c, struct key_params *params)
1811 struct get_key_cookie *cookie = c;
1814 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1815 params->key_len, params->key);
1818 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1819 params->seq_len, params->seq);
1822 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1825 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1827 goto nla_put_failure;
1830 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1831 params->key_len, params->key);
1834 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1835 params->seq_len, params->seq);
1838 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1841 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1843 nla_nest_end(cookie->msg, key);
1850 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1854 struct net_device *dev = info->user_ptr[1];
1856 const u8 *mac_addr = NULL;
1858 struct get_key_cookie cookie = {
1862 struct sk_buff *msg;
1864 if (info->attrs[NL80211_ATTR_KEY_IDX])
1865 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1870 if (info->attrs[NL80211_ATTR_MAC])
1871 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1873 pairwise = !!mac_addr;
1874 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1875 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1876 if (kt >= NUM_NL80211_KEYTYPES)
1878 if (kt != NL80211_KEYTYPE_GROUP &&
1879 kt != NL80211_KEYTYPE_PAIRWISE)
1881 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1884 if (!rdev->ops->get_key)
1887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1891 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1892 NL80211_CMD_NEW_KEY);
1894 return PTR_ERR(hdr);
1897 cookie.idx = key_idx;
1899 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1900 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1902 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1904 if (pairwise && mac_addr &&
1905 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1908 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1909 mac_addr, &cookie, get_key_callback);
1915 goto nla_put_failure;
1917 genlmsg_end(msg, hdr);
1918 return genlmsg_reply(msg, info);
1927 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1930 struct key_parse key;
1932 struct net_device *dev = info->user_ptr[1];
1934 err = nl80211_parse_key(info, &key);
1941 /* only support setting default key */
1942 if (!key.def && !key.defmgmt)
1945 wdev_lock(dev->ieee80211_ptr);
1948 if (!rdev->ops->set_default_key) {
1953 err = nl80211_key_allowed(dev->ieee80211_ptr);
1957 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1958 key.def_uni, key.def_multi);
1963 #ifdef CONFIG_CFG80211_WEXT
1964 dev->ieee80211_ptr->wext.default_key = key.idx;
1967 if (key.def_uni || !key.def_multi) {
1972 if (!rdev->ops->set_default_mgmt_key) {
1977 err = nl80211_key_allowed(dev->ieee80211_ptr);
1981 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1986 #ifdef CONFIG_CFG80211_WEXT
1987 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1992 wdev_unlock(dev->ieee80211_ptr);
1997 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2001 struct net_device *dev = info->user_ptr[1];
2002 struct key_parse key;
2003 const u8 *mac_addr = NULL;
2005 err = nl80211_parse_key(info, &key);
2012 if (info->attrs[NL80211_ATTR_MAC])
2013 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2015 if (key.type == -1) {
2017 key.type = NL80211_KEYTYPE_PAIRWISE;
2019 key.type = NL80211_KEYTYPE_GROUP;
2023 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2024 key.type != NL80211_KEYTYPE_GROUP)
2027 if (!rdev->ops->add_key)
2030 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2031 key.type == NL80211_KEYTYPE_PAIRWISE,
2035 wdev_lock(dev->ieee80211_ptr);
2036 err = nl80211_key_allowed(dev->ieee80211_ptr);
2038 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2039 key.type == NL80211_KEYTYPE_PAIRWISE,
2041 wdev_unlock(dev->ieee80211_ptr);
2046 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2050 struct net_device *dev = info->user_ptr[1];
2051 u8 *mac_addr = NULL;
2052 struct key_parse key;
2054 err = nl80211_parse_key(info, &key);
2058 if (info->attrs[NL80211_ATTR_MAC])
2059 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2061 if (key.type == -1) {
2063 key.type = NL80211_KEYTYPE_PAIRWISE;
2065 key.type = NL80211_KEYTYPE_GROUP;
2069 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2070 key.type != NL80211_KEYTYPE_GROUP)
2073 if (!rdev->ops->del_key)
2076 wdev_lock(dev->ieee80211_ptr);
2077 err = nl80211_key_allowed(dev->ieee80211_ptr);
2079 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2080 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2084 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2085 key.type == NL80211_KEYTYPE_PAIRWISE,
2088 #ifdef CONFIG_CFG80211_WEXT
2090 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2091 dev->ieee80211_ptr->wext.default_key = -1;
2092 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2093 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2096 wdev_unlock(dev->ieee80211_ptr);
2101 static int nl80211_parse_beacon(struct genl_info *info,
2102 struct cfg80211_beacon_data *bcn)
2104 bool haveinfo = false;
2106 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2107 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2108 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2109 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2112 memset(bcn, 0, sizeof(*bcn));
2114 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2115 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2116 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2122 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2123 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2125 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2132 if (info->attrs[NL80211_ATTR_IE]) {
2133 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2134 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2137 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2138 bcn->proberesp_ies =
2139 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2140 bcn->proberesp_ies_len =
2141 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2144 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2145 bcn->assocresp_ies =
2146 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2147 bcn->assocresp_ies_len =
2148 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2151 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2153 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2154 bcn->probe_resp_len =
2155 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2161 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2164 struct net_device *dev = info->user_ptr[1];
2165 struct wireless_dev *wdev = dev->ieee80211_ptr;
2166 struct cfg80211_ap_settings params;
2169 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2173 if (!rdev->ops->start_ap)
2176 if (wdev->beacon_interval)
2179 memset(¶ms, 0, sizeof(params));
2181 /* these are required for START_AP */
2182 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2183 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2184 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2187 err = nl80211_parse_beacon(info, ¶ms.beacon);
2191 params.beacon_interval =
2192 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2193 params.dtim_period =
2194 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2196 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2201 * In theory, some of these attributes should be required here
2202 * but since they were not used when the command was originally
2203 * added, keep them optional for old user space programs to let
2204 * them continue to work with drivers that do not need the
2205 * additional information -- drivers must check!
2207 if (info->attrs[NL80211_ATTR_SSID]) {
2208 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2210 nla_len(info->attrs[NL80211_ATTR_SSID]);
2211 if (params.ssid_len == 0 ||
2212 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2216 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2217 params.hidden_ssid = nla_get_u32(
2218 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2219 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2220 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2221 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2225 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2227 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2228 params.auth_type = nla_get_u32(
2229 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2230 if (!nl80211_valid_auth_type(params.auth_type))
2233 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2235 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2236 NL80211_MAX_NR_CIPHER_SUITES);
2240 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2241 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2243 params.inactivity_timeout = nla_get_u16(
2244 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2247 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2249 wdev->beacon_interval = params.beacon_interval;
2253 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2256 struct net_device *dev = info->user_ptr[1];
2257 struct wireless_dev *wdev = dev->ieee80211_ptr;
2258 struct cfg80211_beacon_data params;
2261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2265 if (!rdev->ops->change_beacon)
2268 if (!wdev->beacon_interval)
2271 err = nl80211_parse_beacon(info, ¶ms);
2275 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2278 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2281 struct net_device *dev = info->user_ptr[1];
2282 struct wireless_dev *wdev = dev->ieee80211_ptr;
2285 if (!rdev->ops->stop_ap)
2288 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2289 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2292 if (!wdev->beacon_interval)
2295 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2297 wdev->beacon_interval = 0;
2301 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2302 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2303 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2304 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2305 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2306 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2307 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2310 static int parse_station_flags(struct genl_info *info,
2311 enum nl80211_iftype iftype,
2312 struct station_parameters *params)
2314 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2319 * Try parsing the new attribute first so userspace
2320 * can specify both for older kernels.
2322 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2324 struct nl80211_sta_flag_update *sta_flags;
2326 sta_flags = nla_data(nla);
2327 params->sta_flags_mask = sta_flags->mask;
2328 params->sta_flags_set = sta_flags->set;
2329 if ((params->sta_flags_mask |
2330 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2335 /* if present, parse the old attribute */
2337 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2341 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2342 nla, sta_flags_policy))
2346 * Only allow certain flags for interface types so that
2347 * other attributes are silently ignored. Remember that
2348 * this is backward compatibility code with old userspace
2349 * and shouldn't be hit in other cases anyway.
2352 case NL80211_IFTYPE_AP:
2353 case NL80211_IFTYPE_AP_VLAN:
2354 case NL80211_IFTYPE_P2P_GO:
2355 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2356 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2357 BIT(NL80211_STA_FLAG_WME) |
2358 BIT(NL80211_STA_FLAG_MFP);
2360 case NL80211_IFTYPE_P2P_CLIENT:
2361 case NL80211_IFTYPE_STATION:
2362 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2363 BIT(NL80211_STA_FLAG_TDLS_PEER);
2365 case NL80211_IFTYPE_MESH_POINT:
2366 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2367 BIT(NL80211_STA_FLAG_MFP) |
2368 BIT(NL80211_STA_FLAG_AUTHORIZED);
2373 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2375 params->sta_flags_set |= (1<<flag);
2380 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2383 struct nlattr *rate;
2386 rate = nla_nest_start(msg, attr);
2388 goto nla_put_failure;
2390 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2391 bitrate = cfg80211_calculate_bitrate(info);
2393 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2395 if (info->flags & RATE_INFO_FLAGS_MCS)
2396 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2397 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2398 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2399 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2400 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2402 nla_nest_end(msg, rate);
2409 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2411 struct cfg80211_registered_device *rdev,
2412 struct net_device *dev,
2413 const u8 *mac_addr, struct station_info *sinfo)
2416 struct nlattr *sinfoattr, *bss_param;
2418 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2422 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2423 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2425 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2427 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2429 goto nla_put_failure;
2430 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2431 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2432 sinfo->connected_time);
2433 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2434 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2435 sinfo->inactive_time);
2436 if (sinfo->filled & STATION_INFO_RX_BYTES)
2437 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2439 if (sinfo->filled & STATION_INFO_TX_BYTES)
2440 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2442 if (sinfo->filled & STATION_INFO_LLID)
2443 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2445 if (sinfo->filled & STATION_INFO_PLID)
2446 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2448 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2449 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2450 sinfo->plink_state);
2451 switch (rdev->wiphy.signal_type) {
2452 case CFG80211_SIGNAL_TYPE_MBM:
2453 if (sinfo->filled & STATION_INFO_SIGNAL)
2454 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2456 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2457 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2463 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2464 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2465 NL80211_STA_INFO_TX_BITRATE))
2466 goto nla_put_failure;
2468 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2469 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2470 NL80211_STA_INFO_RX_BITRATE))
2471 goto nla_put_failure;
2473 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2474 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2476 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2477 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2479 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2480 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2482 if (sinfo->filled & STATION_INFO_TX_FAILED)
2483 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2485 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2486 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2487 sinfo->beacon_loss_count);
2488 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2489 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2491 goto nla_put_failure;
2493 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2494 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2495 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2496 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2497 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2499 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2500 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2501 sinfo->bss_param.dtim_period);
2502 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2503 sinfo->bss_param.beacon_interval);
2505 nla_nest_end(msg, bss_param);
2507 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2508 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2509 sizeof(struct nl80211_sta_flag_update),
2511 if (sinfo->filled & STATION_INFO_T_OFFSET)
2512 NLA_PUT_U64(msg, NL80211_STA_INFO_T_OFFSET,
2514 nla_nest_end(msg, sinfoattr);
2516 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2517 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2518 sinfo->assoc_req_ies);
2520 return genlmsg_end(msg, hdr);
2523 genlmsg_cancel(msg, hdr);
2527 static int nl80211_dump_station(struct sk_buff *skb,
2528 struct netlink_callback *cb)
2530 struct station_info sinfo;
2531 struct cfg80211_registered_device *dev;
2532 struct net_device *netdev;
2533 u8 mac_addr[ETH_ALEN];
2534 int sta_idx = cb->args[1];
2537 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2541 if (!dev->ops->dump_station) {
2547 memset(&sinfo, 0, sizeof(sinfo));
2548 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2555 if (nl80211_send_station(skb,
2556 NETLINK_CB(cb->skb).pid,
2557 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2558 dev, netdev, mac_addr,
2567 cb->args[1] = sta_idx;
2570 nl80211_finish_netdev_dump(dev);
2575 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2578 struct net_device *dev = info->user_ptr[1];
2579 struct station_info sinfo;
2580 struct sk_buff *msg;
2581 u8 *mac_addr = NULL;
2584 memset(&sinfo, 0, sizeof(sinfo));
2586 if (!info->attrs[NL80211_ATTR_MAC])
2589 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2591 if (!rdev->ops->get_station)
2594 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2598 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2602 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2603 rdev, dev, mac_addr, &sinfo) < 0) {
2608 return genlmsg_reply(msg, info);
2612 * Get vlan interface making sure it is running and on the right wiphy.
2614 static struct net_device *get_vlan(struct genl_info *info,
2615 struct cfg80211_registered_device *rdev)
2617 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2618 struct net_device *v;
2624 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2626 return ERR_PTR(-ENODEV);
2628 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2633 if (!netif_running(v)) {
2641 return ERR_PTR(ret);
2644 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2648 struct net_device *dev = info->user_ptr[1];
2649 struct station_parameters params;
2650 u8 *mac_addr = NULL;
2652 memset(¶ms, 0, sizeof(params));
2654 params.listen_interval = -1;
2655 params.plink_state = -1;
2657 if (info->attrs[NL80211_ATTR_STA_AID])
2660 if (!info->attrs[NL80211_ATTR_MAC])
2663 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2665 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2666 params.supported_rates =
2667 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2668 params.supported_rates_len =
2669 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2672 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2673 params.listen_interval =
2674 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2676 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2678 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2680 if (!rdev->ops->change_station)
2683 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2686 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2687 params.plink_action =
2688 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2690 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2691 params.plink_state =
2692 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2694 switch (dev->ieee80211_ptr->iftype) {
2695 case NL80211_IFTYPE_AP:
2696 case NL80211_IFTYPE_AP_VLAN:
2697 case NL80211_IFTYPE_P2P_GO:
2698 /* disallow mesh-specific things */
2699 if (params.plink_action)
2702 /* TDLS can't be set, ... */
2703 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2706 * ... but don't bother the driver with it. This works around
2707 * a hostapd/wpa_supplicant issue -- it always includes the
2708 * TLDS_PEER flag in the mask even for AP mode.
2710 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2712 /* accept only the listed bits */
2713 if (params.sta_flags_mask &
2714 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2715 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2716 BIT(NL80211_STA_FLAG_WME) |
2717 BIT(NL80211_STA_FLAG_MFP)))
2720 /* must be last in here for error handling */
2721 params.vlan = get_vlan(info, rdev);
2722 if (IS_ERR(params.vlan))
2723 return PTR_ERR(params.vlan);
2725 case NL80211_IFTYPE_P2P_CLIENT:
2726 case NL80211_IFTYPE_STATION:
2728 * Don't allow userspace to change the TDLS_PEER flag,
2729 * but silently ignore attempts to change it since we
2730 * don't have state here to verify that it doesn't try
2731 * to change the flag.
2733 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2735 case NL80211_IFTYPE_ADHOC:
2736 /* disallow things sta doesn't support */
2737 if (params.plink_action)
2741 if (params.listen_interval >= 0)
2743 /* reject any changes other than AUTHORIZED */
2744 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2747 case NL80211_IFTYPE_MESH_POINT:
2748 /* disallow things mesh doesn't support */
2753 if (params.listen_interval >= 0)
2756 * No special handling for TDLS here -- the userspace
2757 * mesh code doesn't have this bug.
2759 if (params.sta_flags_mask &
2760 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2761 BIT(NL80211_STA_FLAG_MFP) |
2762 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2769 /* be aware of params.vlan when changing code here */
2771 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2774 dev_put(params.vlan);
2779 static struct nla_policy
2780 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2781 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2782 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2785 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2789 struct net_device *dev = info->user_ptr[1];
2790 struct station_parameters params;
2791 u8 *mac_addr = NULL;
2793 memset(¶ms, 0, sizeof(params));
2795 if (!info->attrs[NL80211_ATTR_MAC])
2798 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2801 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2804 if (!info->attrs[NL80211_ATTR_STA_AID])
2807 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2808 params.supported_rates =
2809 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2810 params.supported_rates_len =
2811 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2812 params.listen_interval =
2813 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2815 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2816 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2819 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2821 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2823 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2824 params.plink_action =
2825 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2827 if (!rdev->ops->add_station)
2830 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2833 switch (dev->ieee80211_ptr->iftype) {
2834 case NL80211_IFTYPE_AP:
2835 case NL80211_IFTYPE_AP_VLAN:
2836 case NL80211_IFTYPE_P2P_GO:
2837 /* parse WME attributes if sta is WME capable */
2838 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2839 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2840 info->attrs[NL80211_ATTR_STA_WME]) {
2841 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2844 nla = info->attrs[NL80211_ATTR_STA_WME];
2845 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2846 nl80211_sta_wme_policy);
2850 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2851 params.uapsd_queues =
2852 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2853 if (params.uapsd_queues &
2854 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2857 if (tb[NL80211_STA_WME_MAX_SP])
2859 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2862 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2865 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2867 /* TDLS peers cannot be added */
2868 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2870 /* but don't bother the driver with it */
2871 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2873 /* must be last in here for error handling */
2874 params.vlan = get_vlan(info, rdev);
2875 if (IS_ERR(params.vlan))
2876 return PTR_ERR(params.vlan);
2878 case NL80211_IFTYPE_MESH_POINT:
2879 /* TDLS peers cannot be added */
2880 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2883 case NL80211_IFTYPE_STATION:
2884 /* Only TDLS peers can be added */
2885 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2887 /* Can only add if TDLS ... */
2888 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2890 /* ... with external setup is supported */
2891 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2898 /* be aware of params.vlan when changing code here */
2900 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2903 dev_put(params.vlan);
2907 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2910 struct net_device *dev = info->user_ptr[1];
2911 u8 *mac_addr = NULL;
2913 if (info->attrs[NL80211_ATTR_MAC])
2914 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2917 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2918 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2919 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2922 if (!rdev->ops->del_station)
2925 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2928 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2929 int flags, struct net_device *dev,
2930 u8 *dst, u8 *next_hop,
2931 struct mpath_info *pinfo)
2934 struct nlattr *pinfoattr;
2936 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2940 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2941 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2942 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2944 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2946 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2948 goto nla_put_failure;
2949 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2950 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2952 if (pinfo->filled & MPATH_INFO_SN)
2953 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2955 if (pinfo->filled & MPATH_INFO_METRIC)
2956 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2958 if (pinfo->filled & MPATH_INFO_EXPTIME)
2959 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2961 if (pinfo->filled & MPATH_INFO_FLAGS)
2962 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2964 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2965 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2966 pinfo->discovery_timeout);
2967 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2968 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2969 pinfo->discovery_retries);
2971 nla_nest_end(msg, pinfoattr);
2973 return genlmsg_end(msg, hdr);
2976 genlmsg_cancel(msg, hdr);
2980 static int nl80211_dump_mpath(struct sk_buff *skb,
2981 struct netlink_callback *cb)
2983 struct mpath_info pinfo;
2984 struct cfg80211_registered_device *dev;
2985 struct net_device *netdev;
2987 u8 next_hop[ETH_ALEN];
2988 int path_idx = cb->args[1];
2991 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2995 if (!dev->ops->dump_mpath) {
3000 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3006 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3007 dst, next_hop, &pinfo);
3013 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3014 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3015 netdev, dst, next_hop,
3024 cb->args[1] = path_idx;
3027 nl80211_finish_netdev_dump(dev);
3031 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3035 struct net_device *dev = info->user_ptr[1];
3036 struct mpath_info pinfo;
3037 struct sk_buff *msg;
3039 u8 next_hop[ETH_ALEN];
3041 memset(&pinfo, 0, sizeof(pinfo));
3043 if (!info->attrs[NL80211_ATTR_MAC])
3046 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3048 if (!rdev->ops->get_mpath)
3051 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3054 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3062 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3063 dev, dst, next_hop, &pinfo) < 0) {
3068 return genlmsg_reply(msg, info);
3071 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3074 struct net_device *dev = info->user_ptr[1];
3076 u8 *next_hop = NULL;
3078 if (!info->attrs[NL80211_ATTR_MAC])
3081 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3084 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3085 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3087 if (!rdev->ops->change_mpath)
3090 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3093 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3096 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3099 struct net_device *dev = info->user_ptr[1];
3101 u8 *next_hop = NULL;
3103 if (!info->attrs[NL80211_ATTR_MAC])
3106 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3109 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3110 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3112 if (!rdev->ops->add_mpath)
3115 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3118 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3121 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3124 struct net_device *dev = info->user_ptr[1];
3127 if (info->attrs[NL80211_ATTR_MAC])
3128 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3130 if (!rdev->ops->del_mpath)
3133 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3136 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3139 struct net_device *dev = info->user_ptr[1];
3140 struct bss_parameters params;
3142 memset(¶ms, 0, sizeof(params));
3143 /* default to not changing parameters */
3144 params.use_cts_prot = -1;
3145 params.use_short_preamble = -1;
3146 params.use_short_slot_time = -1;
3147 params.ap_isolate = -1;
3148 params.ht_opmode = -1;
3150 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3151 params.use_cts_prot =
3152 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3153 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3154 params.use_short_preamble =
3155 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3156 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3157 params.use_short_slot_time =
3158 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3159 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3160 params.basic_rates =
3161 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3162 params.basic_rates_len =
3163 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3165 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3166 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3167 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3169 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3171 if (!rdev->ops->change_bss)
3174 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3175 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3178 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3181 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3182 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3183 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3184 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3185 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3186 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3187 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3190 static int parse_reg_rule(struct nlattr *tb[],
3191 struct ieee80211_reg_rule *reg_rule)
3193 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3194 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3196 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3198 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3200 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3202 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3204 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3207 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3209 freq_range->start_freq_khz =
3210 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3211 freq_range->end_freq_khz =
3212 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3213 freq_range->max_bandwidth_khz =
3214 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3216 power_rule->max_eirp =
3217 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3219 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3220 power_rule->max_antenna_gain =
3221 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3226 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3232 * You should only get this when cfg80211 hasn't yet initialized
3233 * completely when built-in to the kernel right between the time
3234 * window between nl80211_init() and regulatory_init(), if that is
3237 mutex_lock(&cfg80211_mutex);
3238 if (unlikely(!cfg80211_regdomain)) {
3239 mutex_unlock(&cfg80211_mutex);
3240 return -EINPROGRESS;
3242 mutex_unlock(&cfg80211_mutex);
3244 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3247 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3249 r = regulatory_hint_user(data);
3254 static int nl80211_get_mesh_config(struct sk_buff *skb,
3255 struct genl_info *info)
3257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3258 struct net_device *dev = info->user_ptr[1];
3259 struct wireless_dev *wdev = dev->ieee80211_ptr;
3260 struct mesh_config cur_params;
3263 struct nlattr *pinfoattr;
3264 struct sk_buff *msg;
3266 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3269 if (!rdev->ops->get_mesh_config)
3273 /* If not connected, get default parameters */
3274 if (!wdev->mesh_id_len)
3275 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3277 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3284 /* Draw up a netlink message to send back */
3285 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3288 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3289 NL80211_CMD_GET_MESH_CONFIG);
3292 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3294 goto nla_put_failure;
3295 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3296 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3297 cur_params.dot11MeshRetryTimeout);
3298 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3299 cur_params.dot11MeshConfirmTimeout);
3300 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3301 cur_params.dot11MeshHoldingTimeout);
3302 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3303 cur_params.dot11MeshMaxPeerLinks);
3304 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3305 cur_params.dot11MeshMaxRetries);
3306 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3307 cur_params.dot11MeshTTL);
3308 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3309 cur_params.element_ttl);
3310 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3311 cur_params.auto_open_plinks);
3312 NLA_PUT_U32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3313 cur_params.dot11MeshNbrOffsetMaxNeighbor);
3314 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3315 cur_params.dot11MeshHWMPmaxPREQretries);
3316 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3317 cur_params.path_refresh_time);
3318 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3319 cur_params.min_discovery_timeout);
3320 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3321 cur_params.dot11MeshHWMPactivePathTimeout);
3322 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3323 cur_params.dot11MeshHWMPpreqMinInterval);
3324 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3325 cur_params.dot11MeshHWMPperrMinInterval);
3326 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3327 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3328 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3329 cur_params.dot11MeshHWMPRootMode);
3330 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3331 cur_params.dot11MeshHWMPRannInterval);
3332 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3333 cur_params.dot11MeshGateAnnouncementProtocol);
3334 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3335 cur_params.dot11MeshForwarding);
3336 NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3337 cur_params.rssi_threshold);
3338 nla_nest_end(msg, pinfoattr);
3339 genlmsg_end(msg, hdr);
3340 return genlmsg_reply(msg, info);
3343 genlmsg_cancel(msg, hdr);
3349 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3350 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3351 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3352 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3353 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3354 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3355 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3356 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3357 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3358 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3360 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3361 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3362 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3363 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3364 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3365 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3366 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3367 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3368 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3369 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3370 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3371 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
3374 static const struct nla_policy
3375 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3376 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3377 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3378 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3379 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3380 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3381 .len = IEEE80211_MAX_DATA_LEN },
3382 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3385 static int nl80211_parse_mesh_config(struct genl_info *info,
3386 struct mesh_config *cfg,
3389 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3392 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3394 if (table[attr_num]) {\
3395 cfg->param = nla_fn(table[attr_num]); \
3396 mask |= (1 << (attr_num - 1)); \
3401 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3403 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3404 info->attrs[NL80211_ATTR_MESH_CONFIG],
3405 nl80211_meshconf_params_policy))
3408 /* This makes sure that there aren't more than 32 mesh config
3409 * parameters (otherwise our bitfield scheme would not work.) */
3410 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3412 /* Fill in the params struct */
3413 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3414 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3415 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3416 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3417 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3418 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3419 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3420 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3421 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3422 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3423 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3424 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3425 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3426 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3427 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3428 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3429 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
3430 mask, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3432 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3433 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3435 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3436 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3437 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3438 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3440 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3441 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3443 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3444 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3446 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3447 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3449 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3450 dot11MeshHWMPnetDiameterTraversalTime,
3451 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3453 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3454 dot11MeshHWMPRootMode, mask,
3455 NL80211_MESHCONF_HWMP_ROOTMODE,
3457 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3458 dot11MeshHWMPRannInterval, mask,
3459 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3461 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3462 dot11MeshGateAnnouncementProtocol, mask,
3463 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3465 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3466 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
3467 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3468 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
3474 #undef FILL_IN_MESH_PARAM_IF_SET
3477 static int nl80211_parse_mesh_setup(struct genl_info *info,
3478 struct mesh_setup *setup)
3480 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3482 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3484 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3485 info->attrs[NL80211_ATTR_MESH_SETUP],
3486 nl80211_mesh_setup_params_policy))
3489 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3490 setup->sync_method =
3491 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3492 IEEE80211_SYNC_METHOD_VENDOR :
3493 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3495 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3496 setup->path_sel_proto =
3497 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3498 IEEE80211_PATH_PROTOCOL_VENDOR :
3499 IEEE80211_PATH_PROTOCOL_HWMP;
3501 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3502 setup->path_metric =
3503 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3504 IEEE80211_PATH_METRIC_VENDOR :
3505 IEEE80211_PATH_METRIC_AIRTIME;
3508 if (tb[NL80211_MESH_SETUP_IE]) {
3509 struct nlattr *ieattr =
3510 tb[NL80211_MESH_SETUP_IE];
3511 if (!is_valid_ie_attr(ieattr))
3513 setup->ie = nla_data(ieattr);
3514 setup->ie_len = nla_len(ieattr);
3516 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3517 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3522 static int nl80211_update_mesh_config(struct sk_buff *skb,
3523 struct genl_info *info)
3525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3526 struct net_device *dev = info->user_ptr[1];
3527 struct wireless_dev *wdev = dev->ieee80211_ptr;
3528 struct mesh_config cfg;
3532 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3535 if (!rdev->ops->update_mesh_config)
3538 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3543 if (!wdev->mesh_id_len)
3547 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3555 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3557 struct sk_buff *msg;
3559 struct nlattr *nl_reg_rules;
3563 mutex_lock(&cfg80211_mutex);
3565 if (!cfg80211_regdomain)
3568 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3574 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3575 NL80211_CMD_GET_REG);
3579 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3580 cfg80211_regdomain->alpha2);
3581 if (cfg80211_regdomain->dfs_region)
3582 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3583 cfg80211_regdomain->dfs_region);
3585 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3587 goto nla_put_failure;
3589 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3590 struct nlattr *nl_reg_rule;
3591 const struct ieee80211_reg_rule *reg_rule;
3592 const struct ieee80211_freq_range *freq_range;
3593 const struct ieee80211_power_rule *power_rule;
3595 reg_rule = &cfg80211_regdomain->reg_rules[i];
3596 freq_range = ®_rule->freq_range;
3597 power_rule = ®_rule->power_rule;
3599 nl_reg_rule = nla_nest_start(msg, i);
3601 goto nla_put_failure;
3603 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3605 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3606 freq_range->start_freq_khz);
3607 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3608 freq_range->end_freq_khz);
3609 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3610 freq_range->max_bandwidth_khz);
3611 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3612 power_rule->max_antenna_gain);
3613 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3614 power_rule->max_eirp);
3616 nla_nest_end(msg, nl_reg_rule);
3619 nla_nest_end(msg, nl_reg_rules);
3621 genlmsg_end(msg, hdr);
3622 err = genlmsg_reply(msg, info);
3626 genlmsg_cancel(msg, hdr);
3631 mutex_unlock(&cfg80211_mutex);
3635 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3637 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3638 struct nlattr *nl_reg_rule;
3639 char *alpha2 = NULL;
3640 int rem_reg_rules = 0, r = 0;
3641 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3643 struct ieee80211_regdomain *rd = NULL;
3645 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3648 if (!info->attrs[NL80211_ATTR_REG_RULES])
3651 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3653 if (info->attrs[NL80211_ATTR_DFS_REGION])
3654 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3656 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3659 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3663 mutex_lock(&cfg80211_mutex);
3665 if (!reg_is_valid_request(alpha2)) {
3670 size_of_regd = sizeof(struct ieee80211_regdomain) +
3671 (num_rules * sizeof(struct ieee80211_reg_rule));
3673 rd = kzalloc(size_of_regd, GFP_KERNEL);
3679 rd->n_reg_rules = num_rules;
3680 rd->alpha2[0] = alpha2[0];
3681 rd->alpha2[1] = alpha2[1];
3684 * Disable DFS master mode if the DFS region was
3685 * not supported or known on this kernel.
3687 if (reg_supported_dfs_region(dfs_region))
3688 rd->dfs_region = dfs_region;
3690 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3692 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3693 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3695 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3701 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3707 BUG_ON(rule_idx != num_rules);
3711 mutex_unlock(&cfg80211_mutex);
3716 mutex_unlock(&cfg80211_mutex);
3721 static int validate_scan_freqs(struct nlattr *freqs)
3723 struct nlattr *attr1, *attr2;
3724 int n_channels = 0, tmp1, tmp2;
3726 nla_for_each_nested(attr1, freqs, tmp1) {
3729 * Some hardware has a limited channel list for
3730 * scanning, and it is pretty much nonsensical
3731 * to scan for a channel twice, so disallow that
3732 * and don't require drivers to check that the
3733 * channel list they get isn't longer than what
3734 * they can scan, as long as they can scan all
3735 * the channels they registered at once.
3737 nla_for_each_nested(attr2, freqs, tmp2)
3738 if (attr1 != attr2 &&
3739 nla_get_u32(attr1) == nla_get_u32(attr2))
3746 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3749 struct net_device *dev = info->user_ptr[1];
3750 struct cfg80211_scan_request *request;
3751 struct nlattr *attr;
3752 struct wiphy *wiphy;
3753 int err, tmp, n_ssids = 0, n_channels, i;
3756 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3759 wiphy = &rdev->wiphy;
3761 if (!rdev->ops->scan)
3767 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3768 n_channels = validate_scan_freqs(
3769 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3773 enum ieee80211_band band;
3776 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3777 if (wiphy->bands[band])
3778 n_channels += wiphy->bands[band]->n_channels;
3781 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3782 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3785 if (n_ssids > wiphy->max_scan_ssids)
3788 if (info->attrs[NL80211_ATTR_IE])
3789 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3793 if (ie_len > wiphy->max_scan_ie_len)
3796 request = kzalloc(sizeof(*request)
3797 + sizeof(*request->ssids) * n_ssids
3798 + sizeof(*request->channels) * n_channels
3799 + ie_len, GFP_KERNEL);
3804 request->ssids = (void *)&request->channels[n_channels];
3805 request->n_ssids = n_ssids;
3808 request->ie = (void *)(request->ssids + n_ssids);
3810 request->ie = (void *)(request->channels + n_channels);
3814 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3815 /* user specified, bail out if channel not found */
3816 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3817 struct ieee80211_channel *chan;
3819 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3826 /* ignore disabled channels */
3827 if (chan->flags & IEEE80211_CHAN_DISABLED)
3830 request->channels[i] = chan;
3834 enum ieee80211_band band;
3837 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3839 if (!wiphy->bands[band])
3841 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3842 struct ieee80211_channel *chan;
3844 chan = &wiphy->bands[band]->channels[j];
3846 if (chan->flags & IEEE80211_CHAN_DISABLED)
3849 request->channels[i] = chan;
3860 request->n_channels = i;
3863 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3864 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3865 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3869 request->ssids[i].ssid_len = nla_len(attr);
3870 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3875 if (info->attrs[NL80211_ATTR_IE]) {
3876 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3877 memcpy((void *)request->ie,
3878 nla_data(info->attrs[NL80211_ATTR_IE]),
3882 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3883 if (wiphy->bands[i])
3885 (1 << wiphy->bands[i]->n_bitrates) - 1;
3887 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3888 nla_for_each_nested(attr,
3889 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3891 enum ieee80211_band band = nla_type(attr);
3893 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3897 err = ieee80211_get_ratemask(wiphy->bands[band],
3900 &request->rates[band]);
3907 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3910 request->wiphy = &rdev->wiphy;
3912 rdev->scan_req = request;
3913 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3916 nl80211_send_scan_start(rdev, dev);
3920 rdev->scan_req = NULL;
3927 static int nl80211_start_sched_scan(struct sk_buff *skb,
3928 struct genl_info *info)
3930 struct cfg80211_sched_scan_request *request;
3931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3932 struct net_device *dev = info->user_ptr[1];
3933 struct nlattr *attr;
3934 struct wiphy *wiphy;
3935 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3937 enum ieee80211_band band;
3939 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3941 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3942 !rdev->ops->sched_scan_start)
3945 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3948 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3951 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3955 wiphy = &rdev->wiphy;
3957 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3958 n_channels = validate_scan_freqs(
3959 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3965 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3966 if (wiphy->bands[band])
3967 n_channels += wiphy->bands[band]->n_channels;
3970 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3971 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3975 if (n_ssids > wiphy->max_sched_scan_ssids)
3978 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3979 nla_for_each_nested(attr,
3980 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3984 if (n_match_sets > wiphy->max_match_sets)
3987 if (info->attrs[NL80211_ATTR_IE])
3988 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3992 if (ie_len > wiphy->max_sched_scan_ie_len)
3995 mutex_lock(&rdev->sched_scan_mtx);
3997 if (rdev->sched_scan_req) {
4002 request = kzalloc(sizeof(*request)
4003 + sizeof(*request->ssids) * n_ssids
4004 + sizeof(*request->match_sets) * n_match_sets
4005 + sizeof(*request->channels) * n_channels
4006 + ie_len, GFP_KERNEL);
4013 request->ssids = (void *)&request->channels[n_channels];
4014 request->n_ssids = n_ssids;
4017 request->ie = (void *)(request->ssids + n_ssids);
4019 request->ie = (void *)(request->channels + n_channels);
4024 request->match_sets = (void *)(request->ie + ie_len);
4025 else if (request->ssids)
4026 request->match_sets =
4027 (void *)(request->ssids + n_ssids);
4029 request->match_sets =
4030 (void *)(request->channels + n_channels);
4032 request->n_match_sets = n_match_sets;
4035 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4036 /* user specified, bail out if channel not found */
4037 nla_for_each_nested(attr,
4038 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4040 struct ieee80211_channel *chan;
4042 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4049 /* ignore disabled channels */
4050 if (chan->flags & IEEE80211_CHAN_DISABLED)
4053 request->channels[i] = chan;
4058 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4060 if (!wiphy->bands[band])
4062 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4063 struct ieee80211_channel *chan;
4065 chan = &wiphy->bands[band]->channels[j];
4067 if (chan->flags & IEEE80211_CHAN_DISABLED)
4070 request->channels[i] = chan;
4081 request->n_channels = i;
4084 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4085 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4087 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4091 request->ssids[i].ssid_len = nla_len(attr);
4092 memcpy(request->ssids[i].ssid, nla_data(attr),
4099 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4100 nla_for_each_nested(attr,
4101 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4103 struct nlattr *ssid;
4105 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4106 nla_data(attr), nla_len(attr),
4107 nl80211_match_policy);
4108 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4110 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4114 memcpy(request->match_sets[i].ssid.ssid,
4115 nla_data(ssid), nla_len(ssid));
4116 request->match_sets[i].ssid.ssid_len =
4123 if (info->attrs[NL80211_ATTR_IE]) {
4124 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4125 memcpy((void *)request->ie,
4126 nla_data(info->attrs[NL80211_ATTR_IE]),
4131 request->wiphy = &rdev->wiphy;
4132 request->interval = interval;
4134 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4136 rdev->sched_scan_req = request;
4137 nl80211_send_sched_scan(rdev, dev,
4138 NL80211_CMD_START_SCHED_SCAN);
4145 mutex_unlock(&rdev->sched_scan_mtx);
4149 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4150 struct genl_info *info)
4152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4155 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4156 !rdev->ops->sched_scan_stop)
4159 mutex_lock(&rdev->sched_scan_mtx);
4160 err = __cfg80211_stop_sched_scan(rdev, false);
4161 mutex_unlock(&rdev->sched_scan_mtx);
4166 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4168 struct cfg80211_registered_device *rdev,
4169 struct wireless_dev *wdev,
4170 struct cfg80211_internal_bss *intbss)
4172 struct cfg80211_bss *res = &intbss->pub;
4176 ASSERT_WDEV_LOCK(wdev);
4178 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4179 NL80211_CMD_NEW_SCAN_RESULTS);
4183 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4185 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
4186 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
4188 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4190 goto nla_put_failure;
4191 if (!is_zero_ether_addr(res->bssid))
4192 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4193 if (res->information_elements && res->len_information_elements)
4194 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4195 res->len_information_elements,
4196 res->information_elements);
4197 if (res->beacon_ies && res->len_beacon_ies &&
4198 res->beacon_ies != res->information_elements)
4199 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4200 res->len_beacon_ies, res->beacon_ies);
4202 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4203 if (res->beacon_interval)
4204 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4205 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4206 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
4207 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4208 jiffies_to_msecs(jiffies - intbss->ts));
4210 switch (rdev->wiphy.signal_type) {
4211 case CFG80211_SIGNAL_TYPE_MBM:
4212 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4214 case CFG80211_SIGNAL_TYPE_UNSPEC:
4215 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4221 switch (wdev->iftype) {
4222 case NL80211_IFTYPE_P2P_CLIENT:
4223 case NL80211_IFTYPE_STATION:
4224 if (intbss == wdev->current_bss)
4225 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4226 NL80211_BSS_STATUS_ASSOCIATED);
4228 case NL80211_IFTYPE_ADHOC:
4229 if (intbss == wdev->current_bss)
4230 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4231 NL80211_BSS_STATUS_IBSS_JOINED);
4237 nla_nest_end(msg, bss);
4239 return genlmsg_end(msg, hdr);
4242 genlmsg_cancel(msg, hdr);
4246 static int nl80211_dump_scan(struct sk_buff *skb,
4247 struct netlink_callback *cb)
4249 struct cfg80211_registered_device *rdev;
4250 struct net_device *dev;
4251 struct cfg80211_internal_bss *scan;
4252 struct wireless_dev *wdev;
4253 int start = cb->args[1], idx = 0;
4256 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4260 wdev = dev->ieee80211_ptr;
4263 spin_lock_bh(&rdev->bss_lock);
4264 cfg80211_bss_expire(rdev);
4266 cb->seq = rdev->bss_generation;
4268 list_for_each_entry(scan, &rdev->bss_list, list) {
4271 if (nl80211_send_bss(skb, cb,
4272 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4273 rdev, wdev, scan) < 0) {
4279 spin_unlock_bh(&rdev->bss_lock);
4283 nl80211_finish_netdev_dump(rdev);
4288 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4289 int flags, struct net_device *dev,
4290 struct survey_info *survey)
4293 struct nlattr *infoattr;
4295 hdr = nl80211hdr_put(msg, pid, seq, flags,
4296 NL80211_CMD_NEW_SURVEY_RESULTS);
4300 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4302 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4304 goto nla_put_failure;
4306 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4307 survey->channel->center_freq);
4308 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4309 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4311 if (survey->filled & SURVEY_INFO_IN_USE)
4312 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4313 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4314 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4315 survey->channel_time);
4316 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4317 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4318 survey->channel_time_busy);
4319 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4320 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4321 survey->channel_time_ext_busy);
4322 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4323 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4324 survey->channel_time_rx);
4325 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4326 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4327 survey->channel_time_tx);
4329 nla_nest_end(msg, infoattr);
4331 return genlmsg_end(msg, hdr);
4334 genlmsg_cancel(msg, hdr);
4338 static int nl80211_dump_survey(struct sk_buff *skb,
4339 struct netlink_callback *cb)
4341 struct survey_info survey;
4342 struct cfg80211_registered_device *dev;
4343 struct net_device *netdev;
4344 int survey_idx = cb->args[1];
4347 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4351 if (!dev->ops->dump_survey) {
4357 struct ieee80211_channel *chan;
4359 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4366 /* Survey without a channel doesn't make sense */
4367 if (!survey.channel) {
4372 chan = ieee80211_get_channel(&dev->wiphy,
4373 survey.channel->center_freq);
4374 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4379 if (nl80211_send_survey(skb,
4380 NETLINK_CB(cb->skb).pid,
4381 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4389 cb->args[1] = survey_idx;
4392 nl80211_finish_netdev_dump(dev);
4396 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4398 return auth_type <= NL80211_AUTHTYPE_MAX;
4401 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4403 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4404 NL80211_WPA_VERSION_2));
4407 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4410 struct net_device *dev = info->user_ptr[1];
4411 struct ieee80211_channel *chan;
4412 const u8 *bssid, *ssid, *ie = NULL;
4413 int err, ssid_len, ie_len = 0;
4414 enum nl80211_auth_type auth_type;
4415 struct key_parse key;
4416 bool local_state_change;
4418 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4421 if (!info->attrs[NL80211_ATTR_MAC])
4424 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4427 if (!info->attrs[NL80211_ATTR_SSID])
4430 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4433 err = nl80211_parse_key(info, &key);
4438 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4440 if (!key.p.key || !key.p.key_len)
4442 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4443 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4444 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4445 key.p.key_len != WLAN_KEY_LEN_WEP104))
4457 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4458 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4467 if (!rdev->ops->auth)
4470 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4471 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4474 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4475 chan = ieee80211_get_channel(&rdev->wiphy,
4476 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4477 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4480 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4481 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4483 if (info->attrs[NL80211_ATTR_IE]) {
4484 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4485 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4488 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4489 if (!nl80211_valid_auth_type(auth_type))
4492 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4495 * Since we no longer track auth state, ignore
4496 * requests to only change local state.
4498 if (local_state_change)
4501 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4502 ssid, ssid_len, ie, ie_len,
4503 key.p.key, key.p.key_len, key.idx);
4506 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4507 struct genl_info *info,
4508 struct cfg80211_crypto_settings *settings,
4511 memset(settings, 0, sizeof(*settings));
4513 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4515 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4517 proto = nla_get_u16(
4518 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4519 settings->control_port_ethertype = cpu_to_be16(proto);
4520 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4523 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4524 settings->control_port_no_encrypt = true;
4526 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4528 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4532 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4533 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4534 settings->n_ciphers_pairwise = len / sizeof(u32);
4536 if (len % sizeof(u32))
4539 if (settings->n_ciphers_pairwise > cipher_limit)
4542 memcpy(settings->ciphers_pairwise, data, len);
4544 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4545 if (!cfg80211_supported_cipher_suite(
4547 settings->ciphers_pairwise[i]))
4551 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4552 settings->cipher_group =
4553 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4554 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4555 settings->cipher_group))
4559 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4560 settings->wpa_versions =
4561 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4562 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4566 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4570 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4571 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4572 settings->n_akm_suites = len / sizeof(u32);
4574 if (len % sizeof(u32))
4577 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4580 memcpy(settings->akm_suites, data, len);
4586 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4589 struct net_device *dev = info->user_ptr[1];
4590 struct cfg80211_crypto_settings crypto;
4591 struct ieee80211_channel *chan;
4592 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4593 int err, ssid_len, ie_len = 0;
4594 bool use_mfp = false;
4596 struct ieee80211_ht_cap *ht_capa = NULL;
4597 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4599 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4602 if (!info->attrs[NL80211_ATTR_MAC] ||
4603 !info->attrs[NL80211_ATTR_SSID] ||
4604 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4607 if (!rdev->ops->assoc)
4610 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4611 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4614 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4616 chan = ieee80211_get_channel(&rdev->wiphy,
4617 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4618 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4621 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4622 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4624 if (info->attrs[NL80211_ATTR_IE]) {
4625 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4626 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4629 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4630 enum nl80211_mfp mfp =
4631 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4632 if (mfp == NL80211_MFP_REQUIRED)
4634 else if (mfp != NL80211_MFP_NO)
4638 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4639 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4641 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4642 flags |= ASSOC_REQ_DISABLE_HT;
4644 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4646 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4648 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4651 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4654 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4656 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4657 ssid, ssid_len, ie, ie_len, use_mfp,
4658 &crypto, flags, ht_capa,
4664 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4667 struct net_device *dev = info->user_ptr[1];
4668 const u8 *ie = NULL, *bssid;
4671 bool local_state_change;
4673 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4676 if (!info->attrs[NL80211_ATTR_MAC])
4679 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4682 if (!rdev->ops->deauth)
4685 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4686 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4689 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4691 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4692 if (reason_code == 0) {
4693 /* Reason Code 0 is reserved */
4697 if (info->attrs[NL80211_ATTR_IE]) {
4698 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4699 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4702 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4704 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4705 local_state_change);
4708 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4711 struct net_device *dev = info->user_ptr[1];
4712 const u8 *ie = NULL, *bssid;
4715 bool local_state_change;
4717 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4720 if (!info->attrs[NL80211_ATTR_MAC])
4723 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4726 if (!rdev->ops->disassoc)
4729 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4730 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4733 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4735 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4736 if (reason_code == 0) {
4737 /* Reason Code 0 is reserved */
4741 if (info->attrs[NL80211_ATTR_IE]) {
4742 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4743 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4746 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4748 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4749 local_state_change);
4753 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4754 int mcast_rate[IEEE80211_NUM_BANDS],
4757 struct wiphy *wiphy = &rdev->wiphy;
4761 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4762 struct ieee80211_supported_band *sband;
4764 sband = wiphy->bands[band];
4768 for (i = 0; i < sband->n_bitrates; i++) {
4769 if (sband->bitrates[i].bitrate == rateval) {
4770 mcast_rate[band] = i + 1;
4780 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4783 struct net_device *dev = info->user_ptr[1];
4784 struct cfg80211_ibss_params ibss;
4785 struct wiphy *wiphy;
4786 struct cfg80211_cached_keys *connkeys = NULL;
4789 memset(&ibss, 0, sizeof(ibss));
4791 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4794 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4795 !info->attrs[NL80211_ATTR_SSID] ||
4796 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4799 ibss.beacon_interval = 100;
4801 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4802 ibss.beacon_interval =
4803 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4804 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4808 if (!rdev->ops->join_ibss)
4811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4814 wiphy = &rdev->wiphy;
4816 if (info->attrs[NL80211_ATTR_MAC]) {
4817 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4819 if (!is_valid_ether_addr(ibss.bssid))
4822 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4823 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4825 if (info->attrs[NL80211_ATTR_IE]) {
4826 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4827 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4830 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4831 enum nl80211_channel_type channel_type;
4833 channel_type = nla_get_u32(
4834 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4835 if (channel_type != NL80211_CHAN_NO_HT &&
4836 channel_type != NL80211_CHAN_HT20 &&
4837 channel_type != NL80211_CHAN_HT40MINUS &&
4838 channel_type != NL80211_CHAN_HT40PLUS)
4841 if (channel_type != NL80211_CHAN_NO_HT &&
4842 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4845 ibss.channel_type = channel_type;
4847 ibss.channel_type = NL80211_CHAN_NO_HT;
4850 ibss.channel = rdev_freq_to_chan(rdev,
4851 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4853 if (!ibss.channel ||
4854 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4855 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4858 /* Both channels should be able to initiate communication */
4859 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4860 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4861 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4865 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4866 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4868 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4870 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4872 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4873 struct ieee80211_supported_band *sband =
4874 wiphy->bands[ibss.channel->band];
4876 err = ieee80211_get_ratemask(sband, rates, n_rates,
4882 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4883 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4884 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4887 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4888 connkeys = nl80211_parse_connkeys(rdev,
4889 info->attrs[NL80211_ATTR_KEYS]);
4890 if (IS_ERR(connkeys))
4891 return PTR_ERR(connkeys);
4895 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4897 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4903 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4906 struct net_device *dev = info->user_ptr[1];
4908 if (!rdev->ops->leave_ibss)
4911 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4914 return cfg80211_leave_ibss(rdev, dev, false);
4917 #ifdef CONFIG_NL80211_TESTMODE
4918 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4922 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4927 if (!info->attrs[NL80211_ATTR_TESTDATA])
4931 if (rdev->ops->testmode_cmd) {
4932 rdev->testmode_info = info;
4933 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4934 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4935 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4936 rdev->testmode_info = NULL;
4942 static int nl80211_testmode_dump(struct sk_buff *skb,
4943 struct netlink_callback *cb)
4945 struct cfg80211_registered_device *rdev;
4953 * 0 is a valid index, but not valid for args[0],
4954 * so we need to offset by 1.
4956 phy_idx = cb->args[0] - 1;
4958 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4959 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4963 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4964 phy_idx = nla_get_u32(
4965 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4967 struct net_device *netdev;
4969 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4970 nl80211_fam.attrbuf,
4975 phy_idx = rdev->wiphy_idx;
4976 cfg80211_unlock_rdev(rdev);
4978 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4980 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4984 data = nla_data((void *)cb->args[1]);
4985 data_len = nla_len((void *)cb->args[1]);
4988 mutex_lock(&cfg80211_mutex);
4989 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4991 mutex_unlock(&cfg80211_mutex);
4994 cfg80211_lock_rdev(rdev);
4995 mutex_unlock(&cfg80211_mutex);
4997 if (!rdev->ops->testmode_dump) {
5003 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5004 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5005 NL80211_CMD_TESTMODE);
5006 struct nlattr *tmdata;
5008 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
5009 genlmsg_cancel(skb, hdr);
5013 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5015 genlmsg_cancel(skb, hdr);
5018 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5020 nla_nest_end(skb, tmdata);
5022 if (err == -ENOBUFS || err == -ENOENT) {
5023 genlmsg_cancel(skb, hdr);
5026 genlmsg_cancel(skb, hdr);
5030 genlmsg_end(skb, hdr);
5035 cb->args[0] = phy_idx + 1;
5037 cfg80211_unlock_rdev(rdev);
5041 static struct sk_buff *
5042 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5043 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5045 struct sk_buff *skb;
5047 struct nlattr *data;
5049 skb = nlmsg_new(approxlen + 100, gfp);
5053 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5059 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5060 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5062 ((void **)skb->cb)[0] = rdev;
5063 ((void **)skb->cb)[1] = hdr;
5064 ((void **)skb->cb)[2] = data;
5073 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5076 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5078 if (WARN_ON(!rdev->testmode_info))
5081 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5082 rdev->testmode_info->snd_pid,
5083 rdev->testmode_info->snd_seq,
5086 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5088 int cfg80211_testmode_reply(struct sk_buff *skb)
5090 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5091 void *hdr = ((void **)skb->cb)[1];
5092 struct nlattr *data = ((void **)skb->cb)[2];
5094 if (WARN_ON(!rdev->testmode_info)) {
5099 nla_nest_end(skb, data);
5100 genlmsg_end(skb, hdr);
5101 return genlmsg_reply(skb, rdev->testmode_info);
5103 EXPORT_SYMBOL(cfg80211_testmode_reply);
5105 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5106 int approxlen, gfp_t gfp)
5108 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5110 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5112 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5114 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5116 void *hdr = ((void **)skb->cb)[1];
5117 struct nlattr *data = ((void **)skb->cb)[2];
5119 nla_nest_end(skb, data);
5120 genlmsg_end(skb, hdr);
5121 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5123 EXPORT_SYMBOL(cfg80211_testmode_event);
5126 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5129 struct net_device *dev = info->user_ptr[1];
5130 struct cfg80211_connect_params connect;
5131 struct wiphy *wiphy;
5132 struct cfg80211_cached_keys *connkeys = NULL;
5135 memset(&connect, 0, sizeof(connect));
5137 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5140 if (!info->attrs[NL80211_ATTR_SSID] ||
5141 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5144 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5146 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5147 if (!nl80211_valid_auth_type(connect.auth_type))
5150 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5152 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5154 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5155 NL80211_MAX_NR_CIPHER_SUITES);
5159 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5160 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5163 wiphy = &rdev->wiphy;
5165 connect.bg_scan_period = -1;
5166 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5167 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5168 connect.bg_scan_period =
5169 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5172 if (info->attrs[NL80211_ATTR_MAC])
5173 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5174 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5175 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5177 if (info->attrs[NL80211_ATTR_IE]) {
5178 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5179 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5182 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5184 ieee80211_get_channel(wiphy,
5185 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5186 if (!connect.channel ||
5187 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5191 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5192 connkeys = nl80211_parse_connkeys(rdev,
5193 info->attrs[NL80211_ATTR_KEYS]);
5194 if (IS_ERR(connkeys))
5195 return PTR_ERR(connkeys);
5198 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5199 connect.flags |= ASSOC_REQ_DISABLE_HT;
5201 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5202 memcpy(&connect.ht_capa_mask,
5203 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5204 sizeof(connect.ht_capa_mask));
5206 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5207 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5209 memcpy(&connect.ht_capa,
5210 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5211 sizeof(connect.ht_capa));
5214 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5220 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5223 struct net_device *dev = info->user_ptr[1];
5226 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5227 reason = WLAN_REASON_DEAUTH_LEAVING;
5229 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5234 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5235 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5238 return cfg80211_disconnect(rdev, dev, reason, true);
5241 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5248 if (!info->attrs[NL80211_ATTR_PID])
5251 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5253 net = get_net_ns_by_pid(pid);
5255 return PTR_ERR(net);
5259 /* check if anything to do */
5260 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5261 err = cfg80211_switch_netns(rdev, net);
5267 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5270 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5271 struct cfg80211_pmksa *pmksa) = NULL;
5272 struct net_device *dev = info->user_ptr[1];
5273 struct cfg80211_pmksa pmksa;
5275 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5277 if (!info->attrs[NL80211_ATTR_MAC])
5280 if (!info->attrs[NL80211_ATTR_PMKID])
5283 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5284 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5287 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5290 switch (info->genlhdr->cmd) {
5291 case NL80211_CMD_SET_PMKSA:
5292 rdev_ops = rdev->ops->set_pmksa;
5294 case NL80211_CMD_DEL_PMKSA:
5295 rdev_ops = rdev->ops->del_pmksa;
5305 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5308 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5311 struct net_device *dev = info->user_ptr[1];
5313 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5314 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5317 if (!rdev->ops->flush_pmksa)
5320 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5323 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5326 struct net_device *dev = info->user_ptr[1];
5327 u8 action_code, dialog_token;
5331 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5332 !rdev->ops->tdls_mgmt)
5335 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5336 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5337 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5338 !info->attrs[NL80211_ATTR_IE] ||
5339 !info->attrs[NL80211_ATTR_MAC])
5342 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5343 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5344 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5345 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5347 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5348 dialog_token, status_code,
5349 nla_data(info->attrs[NL80211_ATTR_IE]),
5350 nla_len(info->attrs[NL80211_ATTR_IE]));
5353 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5356 struct net_device *dev = info->user_ptr[1];
5357 enum nl80211_tdls_operation operation;
5360 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5361 !rdev->ops->tdls_oper)
5364 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5365 !info->attrs[NL80211_ATTR_MAC])
5368 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5369 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5371 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5374 static int nl80211_remain_on_channel(struct sk_buff *skb,
5375 struct genl_info *info)
5377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5378 struct net_device *dev = info->user_ptr[1];
5379 struct ieee80211_channel *chan;
5380 struct sk_buff *msg;
5383 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5387 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5388 !info->attrs[NL80211_ATTR_DURATION])
5391 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5394 * We should be on that channel for at least one jiffie,
5395 * and more than 5 seconds seems excessive.
5397 if (!duration || !msecs_to_jiffies(duration) ||
5398 duration > rdev->wiphy.max_remain_on_channel_duration)
5401 if (!rdev->ops->remain_on_channel ||
5402 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5405 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5406 channel_type = nla_get_u32(
5407 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5408 if (channel_type != NL80211_CHAN_NO_HT &&
5409 channel_type != NL80211_CHAN_HT20 &&
5410 channel_type != NL80211_CHAN_HT40PLUS &&
5411 channel_type != NL80211_CHAN_HT40MINUS)
5415 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5416 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5424 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5425 NL80211_CMD_REMAIN_ON_CHANNEL);
5432 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5433 channel_type, duration, &cookie);
5438 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5440 genlmsg_end(msg, hdr);
5442 return genlmsg_reply(msg, info);
5451 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5452 struct genl_info *info)
5454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5455 struct net_device *dev = info->user_ptr[1];
5458 if (!info->attrs[NL80211_ATTR_COOKIE])
5461 if (!rdev->ops->cancel_remain_on_channel)
5464 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5466 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5469 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5470 u8 *rates, u8 rates_len)
5475 for (i = 0; i < rates_len; i++) {
5476 int rate = (rates[i] & 0x7f) * 5;
5478 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5479 struct ieee80211_rate *srate =
5480 &sband->bitrates[ridx];
5481 if (rate == srate->bitrate) {
5486 if (ridx == sband->n_bitrates)
5487 return 0; /* rate not found */
5493 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5494 u8 *rates, u8 rates_len,
5495 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5499 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5501 for (i = 0; i < rates_len; i++) {
5504 ridx = rates[i] / 8;
5505 rbit = BIT(rates[i] % 8);
5507 /* check validity */
5508 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5511 /* check availability */
5512 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5521 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5522 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5523 .len = NL80211_MAX_SUPP_RATES },
5524 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5525 .len = NL80211_MAX_SUPP_HT_RATES },
5528 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5529 struct genl_info *info)
5531 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5533 struct cfg80211_bitrate_mask mask;
5535 struct net_device *dev = info->user_ptr[1];
5536 struct nlattr *tx_rates;
5537 struct ieee80211_supported_band *sband;
5539 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5542 if (!rdev->ops->set_bitrate_mask)
5545 memset(&mask, 0, sizeof(mask));
5546 /* Default to all rates enabled */
5547 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5548 sband = rdev->wiphy.bands[i];
5549 mask.control[i].legacy =
5550 sband ? (1 << sband->n_bitrates) - 1 : 0;
5552 memcpy(mask.control[i].mcs,
5553 sband->ht_cap.mcs.rx_mask,
5554 sizeof(mask.control[i].mcs));
5556 memset(mask.control[i].mcs, 0,
5557 sizeof(mask.control[i].mcs));
5561 * The nested attribute uses enum nl80211_band as the index. This maps
5562 * directly to the enum ieee80211_band values used in cfg80211.
5564 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5565 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5567 enum ieee80211_band band = nla_type(tx_rates);
5568 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5570 sband = rdev->wiphy.bands[band];
5573 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5574 nla_len(tx_rates), nl80211_txattr_policy);
5575 if (tb[NL80211_TXRATE_LEGACY]) {
5576 mask.control[band].legacy = rateset_to_mask(
5578 nla_data(tb[NL80211_TXRATE_LEGACY]),
5579 nla_len(tb[NL80211_TXRATE_LEGACY]));
5581 if (tb[NL80211_TXRATE_MCS]) {
5582 if (!ht_rateset_to_mask(
5584 nla_data(tb[NL80211_TXRATE_MCS]),
5585 nla_len(tb[NL80211_TXRATE_MCS]),
5586 mask.control[band].mcs))
5590 if (mask.control[band].legacy == 0) {
5591 /* don't allow empty legacy rates if HT
5592 * is not even supported. */
5593 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5596 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5597 if (mask.control[band].mcs[i])
5600 /* legacy and mcs rates may not be both empty */
5601 if (i == IEEE80211_HT_MCS_MASK_LEN)
5606 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5609 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5612 struct net_device *dev = info->user_ptr[1];
5613 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5615 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5618 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5619 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5621 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5622 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5623 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5624 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5625 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5626 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5627 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5630 /* not much point in registering if we can't reply */
5631 if (!rdev->ops->mgmt_tx)
5634 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5636 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5637 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5640 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5643 struct net_device *dev = info->user_ptr[1];
5644 struct ieee80211_channel *chan;
5645 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5646 bool channel_type_valid = false;
5651 struct sk_buff *msg = NULL;
5652 unsigned int wait = 0;
5653 bool offchan, no_cck, dont_wait_for_ack;
5655 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5657 if (!info->attrs[NL80211_ATTR_FRAME] ||
5658 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5661 if (!rdev->ops->mgmt_tx)
5664 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5665 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5666 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5668 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5669 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5670 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5673 if (info->attrs[NL80211_ATTR_DURATION]) {
5674 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5676 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5679 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5680 channel_type = nla_get_u32(
5681 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5682 if (channel_type != NL80211_CHAN_NO_HT &&
5683 channel_type != NL80211_CHAN_HT20 &&
5684 channel_type != NL80211_CHAN_HT40PLUS &&
5685 channel_type != NL80211_CHAN_HT40MINUS)
5687 channel_type_valid = true;
5690 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5692 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5695 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5697 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5698 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5702 if (!dont_wait_for_ack) {
5703 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5707 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5716 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5717 channel_type_valid, wait,
5718 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5719 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5720 no_cck, dont_wait_for_ack, &cookie);
5725 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5727 genlmsg_end(msg, hdr);
5728 return genlmsg_reply(msg, info);
5740 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5743 struct net_device *dev = info->user_ptr[1];
5746 if (!info->attrs[NL80211_ATTR_COOKIE])
5749 if (!rdev->ops->mgmt_tx_cancel_wait)
5752 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5753 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5754 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5756 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5757 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5760 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5762 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5765 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5768 struct wireless_dev *wdev;
5769 struct net_device *dev = info->user_ptr[1];
5774 if (!info->attrs[NL80211_ATTR_PS_STATE])
5777 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5779 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5782 wdev = dev->ieee80211_ptr;
5784 if (!rdev->ops->set_power_mgmt)
5787 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5789 if (state == wdev->ps)
5792 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5799 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5802 enum nl80211_ps_state ps_state;
5803 struct wireless_dev *wdev;
5804 struct net_device *dev = info->user_ptr[1];
5805 struct sk_buff *msg;
5809 wdev = dev->ieee80211_ptr;
5811 if (!rdev->ops->set_power_mgmt)
5814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5818 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5819 NL80211_CMD_GET_POWER_SAVE);
5826 ps_state = NL80211_PS_ENABLED;
5828 ps_state = NL80211_PS_DISABLED;
5830 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5832 genlmsg_end(msg, hdr);
5833 return genlmsg_reply(msg, info);
5842 static struct nla_policy
5843 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5844 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5845 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5846 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5849 static int nl80211_set_cqm_rssi(struct genl_info *info,
5850 s32 threshold, u32 hysteresis)
5852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5853 struct wireless_dev *wdev;
5854 struct net_device *dev = info->user_ptr[1];
5859 wdev = dev->ieee80211_ptr;
5861 if (!rdev->ops->set_cqm_rssi_config)
5864 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5865 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5868 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5869 threshold, hysteresis);
5872 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5874 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5878 cqm = info->attrs[NL80211_ATTR_CQM];
5884 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5885 nl80211_attr_cqm_policy);
5889 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5890 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5893 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5894 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5895 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5903 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5906 struct net_device *dev = info->user_ptr[1];
5907 struct mesh_config cfg;
5908 struct mesh_setup setup;
5911 /* start with default */
5912 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5913 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5915 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5916 /* and parse parameters if given */
5917 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5922 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5923 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5926 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5927 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5929 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5930 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5931 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5934 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5935 /* parse additional setup parameters if given */
5936 err = nl80211_parse_mesh_setup(info, &setup);
5941 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5944 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5947 struct net_device *dev = info->user_ptr[1];
5949 return cfg80211_leave_mesh(rdev, dev);
5952 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5955 struct sk_buff *msg;
5958 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5961 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5965 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5966 NL80211_CMD_GET_WOWLAN);
5968 goto nla_put_failure;
5971 struct nlattr *nl_wowlan;
5973 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5975 goto nla_put_failure;
5977 if (rdev->wowlan->any)
5978 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5979 if (rdev->wowlan->disconnect)
5980 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5981 if (rdev->wowlan->magic_pkt)
5982 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5983 if (rdev->wowlan->gtk_rekey_failure)
5984 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5985 if (rdev->wowlan->eap_identity_req)
5986 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5987 if (rdev->wowlan->four_way_handshake)
5988 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5989 if (rdev->wowlan->rfkill_release)
5990 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5991 if (rdev->wowlan->n_patterns) {
5992 struct nlattr *nl_pats, *nl_pat;
5995 nl_pats = nla_nest_start(msg,
5996 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5998 goto nla_put_failure;
6000 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6001 nl_pat = nla_nest_start(msg, i + 1);
6003 goto nla_put_failure;
6004 pat_len = rdev->wowlan->patterns[i].pattern_len;
6005 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
6006 DIV_ROUND_UP(pat_len, 8),
6007 rdev->wowlan->patterns[i].mask);
6008 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6010 rdev->wowlan->patterns[i].pattern);
6011 nla_nest_end(msg, nl_pat);
6013 nla_nest_end(msg, nl_pats);
6016 nla_nest_end(msg, nl_wowlan);
6019 genlmsg_end(msg, hdr);
6020 return genlmsg_reply(msg, info);
6027 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6030 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6031 struct cfg80211_wowlan no_triggers = {};
6032 struct cfg80211_wowlan new_triggers = {};
6033 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6035 bool prev_enabled = rdev->wowlan;
6037 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6040 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6043 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6044 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6045 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6046 nl80211_wowlan_policy);
6050 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6051 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6053 new_triggers.any = true;
6056 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6057 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6059 new_triggers.disconnect = true;
6062 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6063 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6065 new_triggers.magic_pkt = true;
6068 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6071 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6072 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6074 new_triggers.gtk_rekey_failure = true;
6077 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6078 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6080 new_triggers.eap_identity_req = true;
6083 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6084 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6086 new_triggers.four_way_handshake = true;
6089 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6090 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6092 new_triggers.rfkill_release = true;
6095 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6098 int rem, pat_len, mask_len;
6099 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6101 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6104 if (n_patterns > wowlan->n_patterns)
6107 new_triggers.patterns = kcalloc(n_patterns,
6108 sizeof(new_triggers.patterns[0]),
6110 if (!new_triggers.patterns)
6113 new_triggers.n_patterns = n_patterns;
6116 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6118 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6119 nla_data(pat), nla_len(pat), NULL);
6121 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6122 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6124 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6125 mask_len = DIV_ROUND_UP(pat_len, 8);
6126 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6129 if (pat_len > wowlan->pattern_max_len ||
6130 pat_len < wowlan->pattern_min_len)
6133 new_triggers.patterns[i].mask =
6134 kmalloc(mask_len + pat_len, GFP_KERNEL);
6135 if (!new_triggers.patterns[i].mask) {
6139 new_triggers.patterns[i].pattern =
6140 new_triggers.patterns[i].mask + mask_len;
6141 memcpy(new_triggers.patterns[i].mask,
6142 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6144 new_triggers.patterns[i].pattern_len = pat_len;
6145 memcpy(new_triggers.patterns[i].pattern,
6146 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6152 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6153 struct cfg80211_wowlan *ntrig;
6154 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6160 cfg80211_rdev_free_wowlan(rdev);
6161 rdev->wowlan = ntrig;
6164 cfg80211_rdev_free_wowlan(rdev);
6165 rdev->wowlan = NULL;
6168 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6169 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6173 for (i = 0; i < new_triggers.n_patterns; i++)
6174 kfree(new_triggers.patterns[i].mask);
6175 kfree(new_triggers.patterns);
6179 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6182 struct net_device *dev = info->user_ptr[1];
6183 struct wireless_dev *wdev = dev->ieee80211_ptr;
6184 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6185 struct cfg80211_gtk_rekey_data rekey_data;
6188 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6191 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6192 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6193 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6194 nl80211_rekey_policy);
6198 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6200 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6202 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6205 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6207 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6209 memcpy(rekey_data.replay_ctr,
6210 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6211 NL80211_REPLAY_CTR_LEN);
6214 if (!wdev->current_bss) {
6219 if (!rdev->ops->set_rekey_data) {
6224 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6230 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6231 struct genl_info *info)
6233 struct net_device *dev = info->user_ptr[1];
6234 struct wireless_dev *wdev = dev->ieee80211_ptr;
6236 if (wdev->iftype != NL80211_IFTYPE_AP &&
6237 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6240 if (wdev->ap_unexpected_nlpid)
6243 wdev->ap_unexpected_nlpid = info->snd_pid;
6247 static int nl80211_probe_client(struct sk_buff *skb,
6248 struct genl_info *info)
6250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6251 struct net_device *dev = info->user_ptr[1];
6252 struct wireless_dev *wdev = dev->ieee80211_ptr;
6253 struct sk_buff *msg;
6259 if (wdev->iftype != NL80211_IFTYPE_AP &&
6260 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6263 if (!info->attrs[NL80211_ATTR_MAC])
6266 if (!rdev->ops->probe_client)
6269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6273 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6274 NL80211_CMD_PROBE_CLIENT);
6281 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6283 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6287 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6289 genlmsg_end(msg, hdr);
6291 return genlmsg_reply(msg, info);
6300 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6304 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6307 if (rdev->ap_beacons_nlpid)
6310 rdev->ap_beacons_nlpid = info->snd_pid;
6315 #define NL80211_FLAG_NEED_WIPHY 0x01
6316 #define NL80211_FLAG_NEED_NETDEV 0x02
6317 #define NL80211_FLAG_NEED_RTNL 0x04
6318 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6319 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6320 NL80211_FLAG_CHECK_NETDEV_UP)
6322 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6323 struct genl_info *info)
6325 struct cfg80211_registered_device *rdev;
6326 struct net_device *dev;
6328 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6333 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6334 rdev = cfg80211_get_dev_from_info(info);
6338 return PTR_ERR(rdev);
6340 info->user_ptr[0] = rdev;
6341 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6342 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6349 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6350 !netif_running(dev)) {
6351 cfg80211_unlock_rdev(rdev);
6357 info->user_ptr[0] = rdev;
6358 info->user_ptr[1] = dev;
6364 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6365 struct genl_info *info)
6367 if (info->user_ptr[0])
6368 cfg80211_unlock_rdev(info->user_ptr[0]);
6369 if (info->user_ptr[1])
6370 dev_put(info->user_ptr[1]);
6371 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6375 static struct genl_ops nl80211_ops[] = {
6377 .cmd = NL80211_CMD_GET_WIPHY,
6378 .doit = nl80211_get_wiphy,
6379 .dumpit = nl80211_dump_wiphy,
6380 .policy = nl80211_policy,
6381 /* can be retrieved by unprivileged users */
6382 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6385 .cmd = NL80211_CMD_SET_WIPHY,
6386 .doit = nl80211_set_wiphy,
6387 .policy = nl80211_policy,
6388 .flags = GENL_ADMIN_PERM,
6389 .internal_flags = NL80211_FLAG_NEED_RTNL,
6392 .cmd = NL80211_CMD_GET_INTERFACE,
6393 .doit = nl80211_get_interface,
6394 .dumpit = nl80211_dump_interface,
6395 .policy = nl80211_policy,
6396 /* can be retrieved by unprivileged users */
6397 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6400 .cmd = NL80211_CMD_SET_INTERFACE,
6401 .doit = nl80211_set_interface,
6402 .policy = nl80211_policy,
6403 .flags = GENL_ADMIN_PERM,
6404 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6405 NL80211_FLAG_NEED_RTNL,
6408 .cmd = NL80211_CMD_NEW_INTERFACE,
6409 .doit = nl80211_new_interface,
6410 .policy = nl80211_policy,
6411 .flags = GENL_ADMIN_PERM,
6412 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6413 NL80211_FLAG_NEED_RTNL,
6416 .cmd = NL80211_CMD_DEL_INTERFACE,
6417 .doit = nl80211_del_interface,
6418 .policy = nl80211_policy,
6419 .flags = GENL_ADMIN_PERM,
6420 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6421 NL80211_FLAG_NEED_RTNL,
6424 .cmd = NL80211_CMD_GET_KEY,
6425 .doit = nl80211_get_key,
6426 .policy = nl80211_policy,
6427 .flags = GENL_ADMIN_PERM,
6428 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6429 NL80211_FLAG_NEED_RTNL,
6432 .cmd = NL80211_CMD_SET_KEY,
6433 .doit = nl80211_set_key,
6434 .policy = nl80211_policy,
6435 .flags = GENL_ADMIN_PERM,
6436 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6437 NL80211_FLAG_NEED_RTNL,
6440 .cmd = NL80211_CMD_NEW_KEY,
6441 .doit = nl80211_new_key,
6442 .policy = nl80211_policy,
6443 .flags = GENL_ADMIN_PERM,
6444 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6445 NL80211_FLAG_NEED_RTNL,
6448 .cmd = NL80211_CMD_DEL_KEY,
6449 .doit = nl80211_del_key,
6450 .policy = nl80211_policy,
6451 .flags = GENL_ADMIN_PERM,
6452 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6453 NL80211_FLAG_NEED_RTNL,
6456 .cmd = NL80211_CMD_SET_BEACON,
6457 .policy = nl80211_policy,
6458 .flags = GENL_ADMIN_PERM,
6459 .doit = nl80211_set_beacon,
6460 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6461 NL80211_FLAG_NEED_RTNL,
6464 .cmd = NL80211_CMD_START_AP,
6465 .policy = nl80211_policy,
6466 .flags = GENL_ADMIN_PERM,
6467 .doit = nl80211_start_ap,
6468 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6469 NL80211_FLAG_NEED_RTNL,
6472 .cmd = NL80211_CMD_STOP_AP,
6473 .policy = nl80211_policy,
6474 .flags = GENL_ADMIN_PERM,
6475 .doit = nl80211_stop_ap,
6476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6477 NL80211_FLAG_NEED_RTNL,
6480 .cmd = NL80211_CMD_GET_STATION,
6481 .doit = nl80211_get_station,
6482 .dumpit = nl80211_dump_station,
6483 .policy = nl80211_policy,
6484 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6485 NL80211_FLAG_NEED_RTNL,
6488 .cmd = NL80211_CMD_SET_STATION,
6489 .doit = nl80211_set_station,
6490 .policy = nl80211_policy,
6491 .flags = GENL_ADMIN_PERM,
6492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6493 NL80211_FLAG_NEED_RTNL,
6496 .cmd = NL80211_CMD_NEW_STATION,
6497 .doit = nl80211_new_station,
6498 .policy = nl80211_policy,
6499 .flags = GENL_ADMIN_PERM,
6500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6501 NL80211_FLAG_NEED_RTNL,
6504 .cmd = NL80211_CMD_DEL_STATION,
6505 .doit = nl80211_del_station,
6506 .policy = nl80211_policy,
6507 .flags = GENL_ADMIN_PERM,
6508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6509 NL80211_FLAG_NEED_RTNL,
6512 .cmd = NL80211_CMD_GET_MPATH,
6513 .doit = nl80211_get_mpath,
6514 .dumpit = nl80211_dump_mpath,
6515 .policy = nl80211_policy,
6516 .flags = GENL_ADMIN_PERM,
6517 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6518 NL80211_FLAG_NEED_RTNL,
6521 .cmd = NL80211_CMD_SET_MPATH,
6522 .doit = nl80211_set_mpath,
6523 .policy = nl80211_policy,
6524 .flags = GENL_ADMIN_PERM,
6525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6526 NL80211_FLAG_NEED_RTNL,
6529 .cmd = NL80211_CMD_NEW_MPATH,
6530 .doit = nl80211_new_mpath,
6531 .policy = nl80211_policy,
6532 .flags = GENL_ADMIN_PERM,
6533 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6534 NL80211_FLAG_NEED_RTNL,
6537 .cmd = NL80211_CMD_DEL_MPATH,
6538 .doit = nl80211_del_mpath,
6539 .policy = nl80211_policy,
6540 .flags = GENL_ADMIN_PERM,
6541 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6542 NL80211_FLAG_NEED_RTNL,
6545 .cmd = NL80211_CMD_SET_BSS,
6546 .doit = nl80211_set_bss,
6547 .policy = nl80211_policy,
6548 .flags = GENL_ADMIN_PERM,
6549 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6550 NL80211_FLAG_NEED_RTNL,
6553 .cmd = NL80211_CMD_GET_REG,
6554 .doit = nl80211_get_reg,
6555 .policy = nl80211_policy,
6556 /* can be retrieved by unprivileged users */
6559 .cmd = NL80211_CMD_SET_REG,
6560 .doit = nl80211_set_reg,
6561 .policy = nl80211_policy,
6562 .flags = GENL_ADMIN_PERM,
6565 .cmd = NL80211_CMD_REQ_SET_REG,
6566 .doit = nl80211_req_set_reg,
6567 .policy = nl80211_policy,
6568 .flags = GENL_ADMIN_PERM,
6571 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6572 .doit = nl80211_get_mesh_config,
6573 .policy = nl80211_policy,
6574 /* can be retrieved by unprivileged users */
6575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6576 NL80211_FLAG_NEED_RTNL,
6579 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6580 .doit = nl80211_update_mesh_config,
6581 .policy = nl80211_policy,
6582 .flags = GENL_ADMIN_PERM,
6583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6584 NL80211_FLAG_NEED_RTNL,
6587 .cmd = NL80211_CMD_TRIGGER_SCAN,
6588 .doit = nl80211_trigger_scan,
6589 .policy = nl80211_policy,
6590 .flags = GENL_ADMIN_PERM,
6591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6592 NL80211_FLAG_NEED_RTNL,
6595 .cmd = NL80211_CMD_GET_SCAN,
6596 .policy = nl80211_policy,
6597 .dumpit = nl80211_dump_scan,
6600 .cmd = NL80211_CMD_START_SCHED_SCAN,
6601 .doit = nl80211_start_sched_scan,
6602 .policy = nl80211_policy,
6603 .flags = GENL_ADMIN_PERM,
6604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6605 NL80211_FLAG_NEED_RTNL,
6608 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6609 .doit = nl80211_stop_sched_scan,
6610 .policy = nl80211_policy,
6611 .flags = GENL_ADMIN_PERM,
6612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6613 NL80211_FLAG_NEED_RTNL,
6616 .cmd = NL80211_CMD_AUTHENTICATE,
6617 .doit = nl80211_authenticate,
6618 .policy = nl80211_policy,
6619 .flags = GENL_ADMIN_PERM,
6620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6621 NL80211_FLAG_NEED_RTNL,
6624 .cmd = NL80211_CMD_ASSOCIATE,
6625 .doit = nl80211_associate,
6626 .policy = nl80211_policy,
6627 .flags = GENL_ADMIN_PERM,
6628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6629 NL80211_FLAG_NEED_RTNL,
6632 .cmd = NL80211_CMD_DEAUTHENTICATE,
6633 .doit = nl80211_deauthenticate,
6634 .policy = nl80211_policy,
6635 .flags = GENL_ADMIN_PERM,
6636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6637 NL80211_FLAG_NEED_RTNL,
6640 .cmd = NL80211_CMD_DISASSOCIATE,
6641 .doit = nl80211_disassociate,
6642 .policy = nl80211_policy,
6643 .flags = GENL_ADMIN_PERM,
6644 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6645 NL80211_FLAG_NEED_RTNL,
6648 .cmd = NL80211_CMD_JOIN_IBSS,
6649 .doit = nl80211_join_ibss,
6650 .policy = nl80211_policy,
6651 .flags = GENL_ADMIN_PERM,
6652 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6653 NL80211_FLAG_NEED_RTNL,
6656 .cmd = NL80211_CMD_LEAVE_IBSS,
6657 .doit = nl80211_leave_ibss,
6658 .policy = nl80211_policy,
6659 .flags = GENL_ADMIN_PERM,
6660 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6661 NL80211_FLAG_NEED_RTNL,
6663 #ifdef CONFIG_NL80211_TESTMODE
6665 .cmd = NL80211_CMD_TESTMODE,
6666 .doit = nl80211_testmode_do,
6667 .dumpit = nl80211_testmode_dump,
6668 .policy = nl80211_policy,
6669 .flags = GENL_ADMIN_PERM,
6670 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6671 NL80211_FLAG_NEED_RTNL,
6675 .cmd = NL80211_CMD_CONNECT,
6676 .doit = nl80211_connect,
6677 .policy = nl80211_policy,
6678 .flags = GENL_ADMIN_PERM,
6679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6680 NL80211_FLAG_NEED_RTNL,
6683 .cmd = NL80211_CMD_DISCONNECT,
6684 .doit = nl80211_disconnect,
6685 .policy = nl80211_policy,
6686 .flags = GENL_ADMIN_PERM,
6687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6688 NL80211_FLAG_NEED_RTNL,
6691 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6692 .doit = nl80211_wiphy_netns,
6693 .policy = nl80211_policy,
6694 .flags = GENL_ADMIN_PERM,
6695 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6696 NL80211_FLAG_NEED_RTNL,
6699 .cmd = NL80211_CMD_GET_SURVEY,
6700 .policy = nl80211_policy,
6701 .dumpit = nl80211_dump_survey,
6704 .cmd = NL80211_CMD_SET_PMKSA,
6705 .doit = nl80211_setdel_pmksa,
6706 .policy = nl80211_policy,
6707 .flags = GENL_ADMIN_PERM,
6708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6709 NL80211_FLAG_NEED_RTNL,
6712 .cmd = NL80211_CMD_DEL_PMKSA,
6713 .doit = nl80211_setdel_pmksa,
6714 .policy = nl80211_policy,
6715 .flags = GENL_ADMIN_PERM,
6716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6717 NL80211_FLAG_NEED_RTNL,
6720 .cmd = NL80211_CMD_FLUSH_PMKSA,
6721 .doit = nl80211_flush_pmksa,
6722 .policy = nl80211_policy,
6723 .flags = GENL_ADMIN_PERM,
6724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6725 NL80211_FLAG_NEED_RTNL,
6728 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6729 .doit = nl80211_remain_on_channel,
6730 .policy = nl80211_policy,
6731 .flags = GENL_ADMIN_PERM,
6732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6733 NL80211_FLAG_NEED_RTNL,
6736 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6737 .doit = nl80211_cancel_remain_on_channel,
6738 .policy = nl80211_policy,
6739 .flags = GENL_ADMIN_PERM,
6740 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6741 NL80211_FLAG_NEED_RTNL,
6744 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6745 .doit = nl80211_set_tx_bitrate_mask,
6746 .policy = nl80211_policy,
6747 .flags = GENL_ADMIN_PERM,
6748 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6749 NL80211_FLAG_NEED_RTNL,
6752 .cmd = NL80211_CMD_REGISTER_FRAME,
6753 .doit = nl80211_register_mgmt,
6754 .policy = nl80211_policy,
6755 .flags = GENL_ADMIN_PERM,
6756 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6757 NL80211_FLAG_NEED_RTNL,
6760 .cmd = NL80211_CMD_FRAME,
6761 .doit = nl80211_tx_mgmt,
6762 .policy = nl80211_policy,
6763 .flags = GENL_ADMIN_PERM,
6764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6765 NL80211_FLAG_NEED_RTNL,
6768 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6769 .doit = nl80211_tx_mgmt_cancel_wait,
6770 .policy = nl80211_policy,
6771 .flags = GENL_ADMIN_PERM,
6772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6773 NL80211_FLAG_NEED_RTNL,
6776 .cmd = NL80211_CMD_SET_POWER_SAVE,
6777 .doit = nl80211_set_power_save,
6778 .policy = nl80211_policy,
6779 .flags = GENL_ADMIN_PERM,
6780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6781 NL80211_FLAG_NEED_RTNL,
6784 .cmd = NL80211_CMD_GET_POWER_SAVE,
6785 .doit = nl80211_get_power_save,
6786 .policy = nl80211_policy,
6787 /* can be retrieved by unprivileged users */
6788 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6789 NL80211_FLAG_NEED_RTNL,
6792 .cmd = NL80211_CMD_SET_CQM,
6793 .doit = nl80211_set_cqm,
6794 .policy = nl80211_policy,
6795 .flags = GENL_ADMIN_PERM,
6796 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6797 NL80211_FLAG_NEED_RTNL,
6800 .cmd = NL80211_CMD_SET_CHANNEL,
6801 .doit = nl80211_set_channel,
6802 .policy = nl80211_policy,
6803 .flags = GENL_ADMIN_PERM,
6804 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6805 NL80211_FLAG_NEED_RTNL,
6808 .cmd = NL80211_CMD_SET_WDS_PEER,
6809 .doit = nl80211_set_wds_peer,
6810 .policy = nl80211_policy,
6811 .flags = GENL_ADMIN_PERM,
6812 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6813 NL80211_FLAG_NEED_RTNL,
6816 .cmd = NL80211_CMD_JOIN_MESH,
6817 .doit = nl80211_join_mesh,
6818 .policy = nl80211_policy,
6819 .flags = GENL_ADMIN_PERM,
6820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6821 NL80211_FLAG_NEED_RTNL,
6824 .cmd = NL80211_CMD_LEAVE_MESH,
6825 .doit = nl80211_leave_mesh,
6826 .policy = nl80211_policy,
6827 .flags = GENL_ADMIN_PERM,
6828 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6829 NL80211_FLAG_NEED_RTNL,
6832 .cmd = NL80211_CMD_GET_WOWLAN,
6833 .doit = nl80211_get_wowlan,
6834 .policy = nl80211_policy,
6835 /* can be retrieved by unprivileged users */
6836 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6837 NL80211_FLAG_NEED_RTNL,
6840 .cmd = NL80211_CMD_SET_WOWLAN,
6841 .doit = nl80211_set_wowlan,
6842 .policy = nl80211_policy,
6843 .flags = GENL_ADMIN_PERM,
6844 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6845 NL80211_FLAG_NEED_RTNL,
6848 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6849 .doit = nl80211_set_rekey_data,
6850 .policy = nl80211_policy,
6851 .flags = GENL_ADMIN_PERM,
6852 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6853 NL80211_FLAG_NEED_RTNL,
6856 .cmd = NL80211_CMD_TDLS_MGMT,
6857 .doit = nl80211_tdls_mgmt,
6858 .policy = nl80211_policy,
6859 .flags = GENL_ADMIN_PERM,
6860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6861 NL80211_FLAG_NEED_RTNL,
6864 .cmd = NL80211_CMD_TDLS_OPER,
6865 .doit = nl80211_tdls_oper,
6866 .policy = nl80211_policy,
6867 .flags = GENL_ADMIN_PERM,
6868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6869 NL80211_FLAG_NEED_RTNL,
6872 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6873 .doit = nl80211_register_unexpected_frame,
6874 .policy = nl80211_policy,
6875 .flags = GENL_ADMIN_PERM,
6876 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6877 NL80211_FLAG_NEED_RTNL,
6880 .cmd = NL80211_CMD_PROBE_CLIENT,
6881 .doit = nl80211_probe_client,
6882 .policy = nl80211_policy,
6883 .flags = GENL_ADMIN_PERM,
6884 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6885 NL80211_FLAG_NEED_RTNL,
6888 .cmd = NL80211_CMD_REGISTER_BEACONS,
6889 .doit = nl80211_register_beacons,
6890 .policy = nl80211_policy,
6891 .flags = GENL_ADMIN_PERM,
6892 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6893 NL80211_FLAG_NEED_RTNL,
6896 .cmd = NL80211_CMD_SET_NOACK_MAP,
6897 .doit = nl80211_set_noack_map,
6898 .policy = nl80211_policy,
6899 .flags = GENL_ADMIN_PERM,
6900 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6901 NL80211_FLAG_NEED_RTNL,
6906 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6910 /* multicast groups */
6911 static struct genl_multicast_group nl80211_config_mcgrp = {
6914 static struct genl_multicast_group nl80211_scan_mcgrp = {
6917 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6918 .name = "regulatory",
6921 /* notification functions */
6923 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6925 struct sk_buff *msg;
6927 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6931 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6936 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6937 nl80211_config_mcgrp.id, GFP_KERNEL);
6940 static int nl80211_add_scan_req(struct sk_buff *msg,
6941 struct cfg80211_registered_device *rdev)
6943 struct cfg80211_scan_request *req = rdev->scan_req;
6944 struct nlattr *nest;
6947 ASSERT_RDEV_LOCK(rdev);
6952 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6954 goto nla_put_failure;
6955 for (i = 0; i < req->n_ssids; i++)
6956 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6957 nla_nest_end(msg, nest);
6959 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6961 goto nla_put_failure;
6962 for (i = 0; i < req->n_channels; i++)
6963 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6964 nla_nest_end(msg, nest);
6967 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6974 static int nl80211_send_scan_msg(struct sk_buff *msg,
6975 struct cfg80211_registered_device *rdev,
6976 struct net_device *netdev,
6977 u32 pid, u32 seq, int flags,
6982 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6986 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6987 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6989 /* ignore errors and send incomplete event anyway */
6990 nl80211_add_scan_req(msg, rdev);
6992 return genlmsg_end(msg, hdr);
6995 genlmsg_cancel(msg, hdr);
7000 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7001 struct cfg80211_registered_device *rdev,
7002 struct net_device *netdev,
7003 u32 pid, u32 seq, int flags, u32 cmd)
7007 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7011 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7012 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7014 return genlmsg_end(msg, hdr);
7017 genlmsg_cancel(msg, hdr);
7021 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7022 struct net_device *netdev)
7024 struct sk_buff *msg;
7026 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7030 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7031 NL80211_CMD_TRIGGER_SCAN) < 0) {
7036 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7037 nl80211_scan_mcgrp.id, GFP_KERNEL);
7040 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7041 struct net_device *netdev)
7043 struct sk_buff *msg;
7045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7049 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7050 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7055 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7056 nl80211_scan_mcgrp.id, GFP_KERNEL);
7059 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7060 struct net_device *netdev)
7062 struct sk_buff *msg;
7064 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7068 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7069 NL80211_CMD_SCAN_ABORTED) < 0) {
7074 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7075 nl80211_scan_mcgrp.id, GFP_KERNEL);
7078 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7079 struct net_device *netdev)
7081 struct sk_buff *msg;
7083 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7087 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7088 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7093 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7094 nl80211_scan_mcgrp.id, GFP_KERNEL);
7097 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7098 struct net_device *netdev, u32 cmd)
7100 struct sk_buff *msg;
7102 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7106 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7111 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7112 nl80211_scan_mcgrp.id, GFP_KERNEL);
7116 * This can happen on global regulatory changes or device specific settings
7117 * based on custom world regulatory domains.
7119 void nl80211_send_reg_change_event(struct regulatory_request *request)
7121 struct sk_buff *msg;
7124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7128 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7134 /* Userspace can always count this one always being set */
7135 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7137 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7138 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7139 NL80211_REGDOM_TYPE_WORLD);
7140 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7141 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7142 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7143 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7145 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7146 NL80211_REGDOM_TYPE_INTERSECTION);
7148 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7149 NL80211_REGDOM_TYPE_COUNTRY);
7150 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7153 if (wiphy_idx_valid(request->wiphy_idx))
7154 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7156 genlmsg_end(msg, hdr);
7159 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7166 genlmsg_cancel(msg, hdr);
7170 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7171 struct net_device *netdev,
7172 const u8 *buf, size_t len,
7173 enum nl80211_commands cmd, gfp_t gfp)
7175 struct sk_buff *msg;
7178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7182 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7188 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7189 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7190 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7192 genlmsg_end(msg, hdr);
7194 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7195 nl80211_mlme_mcgrp.id, gfp);
7199 genlmsg_cancel(msg, hdr);
7203 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7204 struct net_device *netdev, const u8 *buf,
7205 size_t len, gfp_t gfp)
7207 nl80211_send_mlme_event(rdev, netdev, buf, len,
7208 NL80211_CMD_AUTHENTICATE, gfp);
7211 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7212 struct net_device *netdev, const u8 *buf,
7213 size_t len, gfp_t gfp)
7215 nl80211_send_mlme_event(rdev, netdev, buf, len,
7216 NL80211_CMD_ASSOCIATE, gfp);
7219 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7220 struct net_device *netdev, const u8 *buf,
7221 size_t len, gfp_t gfp)
7223 nl80211_send_mlme_event(rdev, netdev, buf, len,
7224 NL80211_CMD_DEAUTHENTICATE, gfp);
7227 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7228 struct net_device *netdev, const u8 *buf,
7229 size_t len, gfp_t gfp)
7231 nl80211_send_mlme_event(rdev, netdev, buf, len,
7232 NL80211_CMD_DISASSOCIATE, gfp);
7235 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7236 struct net_device *netdev, const u8 *buf,
7237 size_t len, gfp_t gfp)
7239 nl80211_send_mlme_event(rdev, netdev, buf, len,
7240 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7243 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7244 struct net_device *netdev, const u8 *buf,
7245 size_t len, gfp_t gfp)
7247 nl80211_send_mlme_event(rdev, netdev, buf, len,
7248 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7251 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7252 struct net_device *netdev, int cmd,
7253 const u8 *addr, gfp_t gfp)
7255 struct sk_buff *msg;
7258 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7262 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7268 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7269 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7270 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7271 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7273 genlmsg_end(msg, hdr);
7275 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7276 nl80211_mlme_mcgrp.id, gfp);
7280 genlmsg_cancel(msg, hdr);
7284 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7285 struct net_device *netdev, const u8 *addr,
7288 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7292 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7293 struct net_device *netdev, const u8 *addr,
7296 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7300 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7301 struct net_device *netdev, const u8 *bssid,
7302 const u8 *req_ie, size_t req_ie_len,
7303 const u8 *resp_ie, size_t resp_ie_len,
7304 u16 status, gfp_t gfp)
7306 struct sk_buff *msg;
7309 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7313 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7319 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7320 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7322 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7323 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7325 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7327 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7329 genlmsg_end(msg, hdr);
7331 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7332 nl80211_mlme_mcgrp.id, gfp);
7336 genlmsg_cancel(msg, hdr);
7341 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7342 struct net_device *netdev, const u8 *bssid,
7343 const u8 *req_ie, size_t req_ie_len,
7344 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7346 struct sk_buff *msg;
7349 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7359 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7360 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7361 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7363 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7365 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7367 genlmsg_end(msg, hdr);
7369 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7370 nl80211_mlme_mcgrp.id, gfp);
7374 genlmsg_cancel(msg, hdr);
7379 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7380 struct net_device *netdev, u16 reason,
7381 const u8 *ie, size_t ie_len, bool from_ap)
7383 struct sk_buff *msg;
7386 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7390 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7396 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7397 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7398 if (from_ap && reason)
7399 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7401 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7403 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7405 genlmsg_end(msg, hdr);
7407 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7408 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7412 genlmsg_cancel(msg, hdr);
7417 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7418 struct net_device *netdev, const u8 *bssid,
7421 struct sk_buff *msg;
7424 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7428 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7434 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7435 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7436 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7438 genlmsg_end(msg, hdr);
7440 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7441 nl80211_mlme_mcgrp.id, gfp);
7445 genlmsg_cancel(msg, hdr);
7449 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7450 struct net_device *netdev,
7451 const u8 *macaddr, const u8* ie, u8 ie_len,
7454 struct sk_buff *msg;
7457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7461 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7467 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7468 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7469 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7471 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7473 genlmsg_end(msg, hdr);
7475 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7476 nl80211_mlme_mcgrp.id, gfp);
7480 genlmsg_cancel(msg, hdr);
7484 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7485 struct net_device *netdev, const u8 *addr,
7486 enum nl80211_key_type key_type, int key_id,
7487 const u8 *tsc, gfp_t gfp)
7489 struct sk_buff *msg;
7492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7502 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7503 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7505 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7506 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7508 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7510 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7512 genlmsg_end(msg, hdr);
7514 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7515 nl80211_mlme_mcgrp.id, gfp);
7519 genlmsg_cancel(msg, hdr);
7523 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7524 struct ieee80211_channel *channel_before,
7525 struct ieee80211_channel *channel_after)
7527 struct sk_buff *msg;
7529 struct nlattr *nl_freq;
7531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7535 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7542 * Since we are applying the beacon hint to a wiphy we know its
7543 * wiphy_idx is valid
7545 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7548 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7550 goto nla_put_failure;
7551 if (nl80211_msg_put_channel(msg, channel_before))
7552 goto nla_put_failure;
7553 nla_nest_end(msg, nl_freq);
7556 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7558 goto nla_put_failure;
7559 if (nl80211_msg_put_channel(msg, channel_after))
7560 goto nla_put_failure;
7561 nla_nest_end(msg, nl_freq);
7563 genlmsg_end(msg, hdr);
7566 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7573 genlmsg_cancel(msg, hdr);
7577 static void nl80211_send_remain_on_chan_event(
7578 int cmd, struct cfg80211_registered_device *rdev,
7579 struct net_device *netdev, u64 cookie,
7580 struct ieee80211_channel *chan,
7581 enum nl80211_channel_type channel_type,
7582 unsigned int duration, gfp_t gfp)
7584 struct sk_buff *msg;
7587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7591 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7597 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7598 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7599 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7600 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7601 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7603 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7604 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7606 genlmsg_end(msg, hdr);
7608 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7609 nl80211_mlme_mcgrp.id, gfp);
7613 genlmsg_cancel(msg, hdr);
7617 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7618 struct net_device *netdev, u64 cookie,
7619 struct ieee80211_channel *chan,
7620 enum nl80211_channel_type channel_type,
7621 unsigned int duration, gfp_t gfp)
7623 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7624 rdev, netdev, cookie, chan,
7625 channel_type, duration, gfp);
7628 void nl80211_send_remain_on_channel_cancel(
7629 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7630 u64 cookie, struct ieee80211_channel *chan,
7631 enum nl80211_channel_type channel_type, gfp_t gfp)
7633 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7634 rdev, netdev, cookie, chan,
7635 channel_type, 0, gfp);
7638 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7639 struct net_device *dev, const u8 *mac_addr,
7640 struct station_info *sinfo, gfp_t gfp)
7642 struct sk_buff *msg;
7644 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7648 if (nl80211_send_station(msg, 0, 0, 0,
7649 rdev, dev, mac_addr, sinfo) < 0) {
7654 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7655 nl80211_mlme_mcgrp.id, gfp);
7658 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7659 struct net_device *dev, const u8 *mac_addr,
7662 struct sk_buff *msg;
7665 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7669 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7676 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7678 genlmsg_end(msg, hdr);
7680 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7681 nl80211_mlme_mcgrp.id, gfp);
7685 genlmsg_cancel(msg, hdr);
7689 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7690 const u8 *addr, gfp_t gfp)
7692 struct wireless_dev *wdev = dev->ieee80211_ptr;
7693 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7694 struct sk_buff *msg;
7697 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7702 msg = nlmsg_new(100, gfp);
7706 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7712 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7713 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7714 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7716 err = genlmsg_end(msg, hdr);
7722 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7726 genlmsg_cancel(msg, hdr);
7731 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7733 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7737 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7738 const u8 *addr, gfp_t gfp)
7740 return __nl80211_unexpected_frame(dev,
7741 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7745 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7746 struct net_device *netdev, u32 nlpid,
7747 int freq, int sig_dbm,
7748 const u8 *buf, size_t len, gfp_t gfp)
7750 struct sk_buff *msg;
7753 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7757 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7763 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7764 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7767 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
7768 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7770 genlmsg_end(msg, hdr);
7772 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7775 genlmsg_cancel(msg, hdr);
7780 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7781 struct net_device *netdev, u64 cookie,
7782 const u8 *buf, size_t len, bool ack,
7785 struct sk_buff *msg;
7788 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7792 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7798 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7799 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7800 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7801 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7803 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7805 genlmsg_end(msg, hdr);
7807 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7811 genlmsg_cancel(msg, hdr);
7816 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7817 struct net_device *netdev,
7818 enum nl80211_cqm_rssi_threshold_event rssi_event,
7821 struct sk_buff *msg;
7822 struct nlattr *pinfoattr;
7825 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7829 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7835 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7838 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7840 goto nla_put_failure;
7842 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7845 nla_nest_end(msg, pinfoattr);
7847 genlmsg_end(msg, hdr);
7849 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7850 nl80211_mlme_mcgrp.id, gfp);
7854 genlmsg_cancel(msg, hdr);
7858 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7859 struct net_device *netdev, const u8 *bssid,
7860 const u8 *replay_ctr, gfp_t gfp)
7862 struct sk_buff *msg;
7863 struct nlattr *rekey_attr;
7866 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7876 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7877 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7878 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7880 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7882 goto nla_put_failure;
7884 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7885 NL80211_REPLAY_CTR_LEN, replay_ctr);
7887 nla_nest_end(msg, rekey_attr);
7889 genlmsg_end(msg, hdr);
7891 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7892 nl80211_mlme_mcgrp.id, gfp);
7896 genlmsg_cancel(msg, hdr);
7900 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7901 struct net_device *netdev, int index,
7902 const u8 *bssid, bool preauth, gfp_t gfp)
7904 struct sk_buff *msg;
7905 struct nlattr *attr;
7908 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7912 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7918 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7919 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7921 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7923 goto nla_put_failure;
7925 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7926 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7928 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7930 nla_nest_end(msg, attr);
7932 genlmsg_end(msg, hdr);
7934 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7935 nl80211_mlme_mcgrp.id, gfp);
7939 genlmsg_cancel(msg, hdr);
7943 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
7944 struct net_device *netdev, int freq,
7945 enum nl80211_channel_type type, gfp_t gfp)
7947 struct sk_buff *msg;
7950 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7954 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
7960 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7961 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7962 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type);
7964 genlmsg_end(msg, hdr);
7966 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7967 nl80211_mlme_mcgrp.id, gfp);
7971 genlmsg_cancel(msg, hdr);
7976 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7977 struct net_device *netdev, const u8 *peer,
7978 u32 num_packets, gfp_t gfp)
7980 struct sk_buff *msg;
7981 struct nlattr *pinfoattr;
7984 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7988 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7994 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7995 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7996 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7998 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8000 goto nla_put_failure;
8002 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
8004 nla_nest_end(msg, pinfoattr);
8006 genlmsg_end(msg, hdr);
8008 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8009 nl80211_mlme_mcgrp.id, gfp);
8013 genlmsg_cancel(msg, hdr);
8017 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8018 u64 cookie, bool acked, gfp_t gfp)
8020 struct wireless_dev *wdev = dev->ieee80211_ptr;
8021 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8022 struct sk_buff *msg;
8026 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8030 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8036 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8037 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
8038 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8039 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
8041 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
8043 err = genlmsg_end(msg, hdr);
8049 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8050 nl80211_mlme_mcgrp.id, gfp);
8054 genlmsg_cancel(msg, hdr);
8057 EXPORT_SYMBOL(cfg80211_probe_status);
8059 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8060 const u8 *frame, size_t len,
8061 int freq, int sig_dbm, gfp_t gfp)
8063 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8064 struct sk_buff *msg;
8066 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8071 msg = nlmsg_new(len + 100, gfp);
8075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8081 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8083 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8085 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
8086 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
8088 genlmsg_end(msg, hdr);
8090 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8094 genlmsg_cancel(msg, hdr);
8097 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8099 static int nl80211_netlink_notify(struct notifier_block * nb,
8100 unsigned long state,
8103 struct netlink_notify *notify = _notify;
8104 struct cfg80211_registered_device *rdev;
8105 struct wireless_dev *wdev;
8107 if (state != NETLINK_URELEASE)
8112 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8113 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8114 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8115 if (rdev->ap_beacons_nlpid == notify->pid)
8116 rdev->ap_beacons_nlpid = 0;
8124 static struct notifier_block nl80211_netlink_notifier = {
8125 .notifier_call = nl80211_netlink_notify,
8128 /* initialisation/exit functions */
8130 int nl80211_init(void)
8134 err = genl_register_family_with_ops(&nl80211_fam,
8135 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8139 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8143 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8147 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8151 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8155 #ifdef CONFIG_NL80211_TESTMODE
8156 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8161 err = netlink_register_notifier(&nl80211_netlink_notifier);
8167 genl_unregister_family(&nl80211_fam);
8171 void nl80211_exit(void)
8173 netlink_unregister_notifier(&nl80211_netlink_notifier);
8174 genl_unregister_family(&nl80211_fam);