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_QUEUE] || !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->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1113 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1114 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1115 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1116 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1121 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1124 * You can only set the channel explicitly for AP, mesh
1125 * and WDS type interfaces; all others have their channel
1126 * managed via their respective "establish a connection"
1127 * command (connect, join, ...)
1129 * Monitors are special as they are normally slaved to
1130 * whatever else is going on, so they behave as though
1131 * you tried setting the wiphy channel itself.
1134 wdev->iftype == NL80211_IFTYPE_AP ||
1135 wdev->iftype == NL80211_IFTYPE_WDS ||
1136 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1137 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1138 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1141 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1142 struct wireless_dev *wdev,
1143 struct genl_info *info)
1145 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1149 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1152 if (!nl80211_can_set_dev_channel(wdev))
1155 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1156 channel_type = nla_get_u32(info->attrs[
1157 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1158 if (channel_type != NL80211_CHAN_NO_HT &&
1159 channel_type != NL80211_CHAN_HT20 &&
1160 channel_type != NL80211_CHAN_HT40PLUS &&
1161 channel_type != NL80211_CHAN_HT40MINUS)
1165 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1167 mutex_lock(&rdev->devlist_mtx);
1170 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1173 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1175 mutex_unlock(&rdev->devlist_mtx);
1180 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1183 struct net_device *netdev = info->user_ptr[1];
1185 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1188 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1191 struct net_device *dev = info->user_ptr[1];
1192 struct wireless_dev *wdev = dev->ieee80211_ptr;
1195 if (!info->attrs[NL80211_ATTR_MAC])
1198 if (netif_running(dev))
1201 if (!rdev->ops->set_wds_peer)
1204 if (wdev->iftype != NL80211_IFTYPE_WDS)
1207 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1208 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1212 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1214 struct cfg80211_registered_device *rdev;
1215 struct net_device *netdev = NULL;
1216 struct wireless_dev *wdev;
1217 int result = 0, rem_txq_params = 0;
1218 struct nlattr *nl_txq_params;
1220 u8 retry_short = 0, retry_long = 0;
1221 u32 frag_threshold = 0, rts_threshold = 0;
1222 u8 coverage_class = 0;
1225 * Try to find the wiphy and netdev. Normally this
1226 * function shouldn't need the netdev, but this is
1227 * done for backward compatibility -- previously
1228 * setting the channel was done per wiphy, but now
1229 * it is per netdev. Previous userland like hostapd
1230 * also passed a netdev to set_wiphy, so that it is
1231 * possible to let that go to the right netdev!
1233 mutex_lock(&cfg80211_mutex);
1235 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1236 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1238 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1239 if (netdev && netdev->ieee80211_ptr) {
1240 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1241 mutex_lock(&rdev->mtx);
1247 rdev = __cfg80211_rdev_from_info(info);
1249 mutex_unlock(&cfg80211_mutex);
1250 return PTR_ERR(rdev);
1256 mutex_lock(&rdev->mtx);
1257 } else if (netif_running(netdev) &&
1258 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1259 wdev = netdev->ieee80211_ptr;
1264 * end workaround code, by now the rdev is available
1265 * and locked, and wdev may or may not be NULL.
1268 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1269 result = cfg80211_dev_rename(
1270 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1272 mutex_unlock(&cfg80211_mutex);
1277 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1278 struct ieee80211_txq_params txq_params;
1279 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1281 if (!rdev->ops->set_txq_params) {
1282 result = -EOPNOTSUPP;
1291 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1292 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1297 nla_for_each_nested(nl_txq_params,
1298 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1300 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1301 nla_data(nl_txq_params),
1302 nla_len(nl_txq_params),
1304 result = parse_txq_params(tb, &txq_params);
1308 result = rdev->ops->set_txq_params(&rdev->wiphy,
1316 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1317 result = __nl80211_set_channel(rdev, wdev, info);
1322 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1323 enum nl80211_tx_power_setting type;
1326 if (!rdev->ops->set_tx_power) {
1327 result = -EOPNOTSUPP;
1331 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1332 type = nla_get_u32(info->attrs[idx]);
1334 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1335 (type != NL80211_TX_POWER_AUTOMATIC)) {
1340 if (type != NL80211_TX_POWER_AUTOMATIC) {
1341 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1342 mbm = nla_get_u32(info->attrs[idx]);
1345 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1350 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1351 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1353 if ((!rdev->wiphy.available_antennas_tx &&
1354 !rdev->wiphy.available_antennas_rx) ||
1355 !rdev->ops->set_antenna) {
1356 result = -EOPNOTSUPP;
1360 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1361 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1363 /* reject antenna configurations which don't match the
1364 * available antenna masks, except for the "all" mask */
1365 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1366 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1371 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1372 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1374 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1381 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1382 retry_short = nla_get_u8(
1383 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1384 if (retry_short == 0) {
1388 changed |= WIPHY_PARAM_RETRY_SHORT;
1391 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1392 retry_long = nla_get_u8(
1393 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1394 if (retry_long == 0) {
1398 changed |= WIPHY_PARAM_RETRY_LONG;
1401 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1402 frag_threshold = nla_get_u32(
1403 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1404 if (frag_threshold < 256) {
1408 if (frag_threshold != (u32) -1) {
1410 * Fragments (apart from the last one) are required to
1411 * have even length. Make the fragmentation code
1412 * simpler by stripping LSB should someone try to use
1413 * odd threshold value.
1415 frag_threshold &= ~0x1;
1417 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1420 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1421 rts_threshold = nla_get_u32(
1422 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1423 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1426 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1427 coverage_class = nla_get_u8(
1428 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1429 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1433 u8 old_retry_short, old_retry_long;
1434 u32 old_frag_threshold, old_rts_threshold;
1435 u8 old_coverage_class;
1437 if (!rdev->ops->set_wiphy_params) {
1438 result = -EOPNOTSUPP;
1442 old_retry_short = rdev->wiphy.retry_short;
1443 old_retry_long = rdev->wiphy.retry_long;
1444 old_frag_threshold = rdev->wiphy.frag_threshold;
1445 old_rts_threshold = rdev->wiphy.rts_threshold;
1446 old_coverage_class = rdev->wiphy.coverage_class;
1448 if (changed & WIPHY_PARAM_RETRY_SHORT)
1449 rdev->wiphy.retry_short = retry_short;
1450 if (changed & WIPHY_PARAM_RETRY_LONG)
1451 rdev->wiphy.retry_long = retry_long;
1452 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1453 rdev->wiphy.frag_threshold = frag_threshold;
1454 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1455 rdev->wiphy.rts_threshold = rts_threshold;
1456 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1457 rdev->wiphy.coverage_class = coverage_class;
1459 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1461 rdev->wiphy.retry_short = old_retry_short;
1462 rdev->wiphy.retry_long = old_retry_long;
1463 rdev->wiphy.frag_threshold = old_frag_threshold;
1464 rdev->wiphy.rts_threshold = old_rts_threshold;
1465 rdev->wiphy.coverage_class = old_coverage_class;
1470 mutex_unlock(&rdev->mtx);
1477 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1478 struct cfg80211_registered_device *rdev,
1479 struct net_device *dev)
1483 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1487 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1488 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1489 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1490 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1492 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1493 rdev->devlist_generation ^
1494 (cfg80211_rdev_list_generation << 2));
1496 return genlmsg_end(msg, hdr);
1499 genlmsg_cancel(msg, hdr);
1503 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1507 int wp_start = cb->args[0];
1508 int if_start = cb->args[1];
1509 struct cfg80211_registered_device *rdev;
1510 struct wireless_dev *wdev;
1512 mutex_lock(&cfg80211_mutex);
1513 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1514 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1516 if (wp_idx < wp_start) {
1522 mutex_lock(&rdev->devlist_mtx);
1523 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1524 if (if_idx < if_start) {
1528 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1529 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1530 rdev, wdev->netdev) < 0) {
1531 mutex_unlock(&rdev->devlist_mtx);
1536 mutex_unlock(&rdev->devlist_mtx);
1541 mutex_unlock(&cfg80211_mutex);
1543 cb->args[0] = wp_idx;
1544 cb->args[1] = if_idx;
1549 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1551 struct sk_buff *msg;
1552 struct cfg80211_registered_device *dev = info->user_ptr[0];
1553 struct net_device *netdev = info->user_ptr[1];
1555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1559 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1565 return genlmsg_reply(msg, info);
1568 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1569 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1570 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1571 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1572 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1573 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1576 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1578 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1586 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1587 nla, mntr_flags_policy))
1590 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1592 *mntrflags |= (1<<flag);
1597 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1598 struct net_device *netdev, u8 use_4addr,
1599 enum nl80211_iftype iftype)
1602 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1608 case NL80211_IFTYPE_AP_VLAN:
1609 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1612 case NL80211_IFTYPE_STATION:
1613 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1623 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1626 struct vif_params params;
1628 enum nl80211_iftype otype, ntype;
1629 struct net_device *dev = info->user_ptr[1];
1630 u32 _flags, *flags = NULL;
1631 bool change = false;
1633 memset(¶ms, 0, sizeof(params));
1635 otype = ntype = dev->ieee80211_ptr->iftype;
1637 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1638 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1641 if (ntype > NL80211_IFTYPE_MAX)
1645 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1646 struct wireless_dev *wdev = dev->ieee80211_ptr;
1648 if (ntype != NL80211_IFTYPE_MESH_POINT)
1650 if (netif_running(dev))
1654 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1655 IEEE80211_MAX_MESH_ID_LEN);
1656 wdev->mesh_id_up_len =
1657 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1658 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1659 wdev->mesh_id_up_len);
1663 if (info->attrs[NL80211_ATTR_4ADDR]) {
1664 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1666 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1670 params.use_4addr = -1;
1673 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1674 if (ntype != NL80211_IFTYPE_MONITOR)
1676 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1686 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1690 if (!err && params.use_4addr != -1)
1691 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1696 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1699 struct vif_params params;
1700 struct net_device *dev;
1702 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1705 memset(¶ms, 0, sizeof(params));
1707 if (!info->attrs[NL80211_ATTR_IFNAME])
1710 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1711 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1712 if (type > NL80211_IFTYPE_MAX)
1716 if (!rdev->ops->add_virtual_intf ||
1717 !(rdev->wiphy.interface_modes & (1 << type)))
1720 if (info->attrs[NL80211_ATTR_4ADDR]) {
1721 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1722 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1727 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1728 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1730 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1731 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1732 type, err ? NULL : &flags, ¶ms);
1734 return PTR_ERR(dev);
1736 if (type == NL80211_IFTYPE_MESH_POINT &&
1737 info->attrs[NL80211_ATTR_MESH_ID]) {
1738 struct wireless_dev *wdev = dev->ieee80211_ptr;
1741 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1742 IEEE80211_MAX_MESH_ID_LEN);
1743 wdev->mesh_id_up_len =
1744 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1745 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1746 wdev->mesh_id_up_len);
1753 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1755 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1756 struct net_device *dev = info->user_ptr[1];
1758 if (!rdev->ops->del_virtual_intf)
1761 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1764 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1767 struct net_device *dev = info->user_ptr[1];
1770 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1773 if (!rdev->ops->set_noack_map)
1776 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1778 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1781 struct get_key_cookie {
1782 struct sk_buff *msg;
1787 static void get_key_callback(void *c, struct key_params *params)
1790 struct get_key_cookie *cookie = c;
1793 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1794 params->key_len, params->key);
1797 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1798 params->seq_len, params->seq);
1801 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1804 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1806 goto nla_put_failure;
1809 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1810 params->key_len, params->key);
1813 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1814 params->seq_len, params->seq);
1817 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1820 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1822 nla_nest_end(cookie->msg, key);
1829 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1833 struct net_device *dev = info->user_ptr[1];
1835 const u8 *mac_addr = NULL;
1837 struct get_key_cookie cookie = {
1841 struct sk_buff *msg;
1843 if (info->attrs[NL80211_ATTR_KEY_IDX])
1844 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1849 if (info->attrs[NL80211_ATTR_MAC])
1850 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1852 pairwise = !!mac_addr;
1853 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1854 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1855 if (kt >= NUM_NL80211_KEYTYPES)
1857 if (kt != NL80211_KEYTYPE_GROUP &&
1858 kt != NL80211_KEYTYPE_PAIRWISE)
1860 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1863 if (!rdev->ops->get_key)
1866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1870 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1871 NL80211_CMD_NEW_KEY);
1873 return PTR_ERR(hdr);
1876 cookie.idx = key_idx;
1878 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1879 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1881 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1883 if (pairwise && mac_addr &&
1884 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1887 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1888 mac_addr, &cookie, get_key_callback);
1894 goto nla_put_failure;
1896 genlmsg_end(msg, hdr);
1897 return genlmsg_reply(msg, info);
1906 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1909 struct key_parse key;
1911 struct net_device *dev = info->user_ptr[1];
1913 err = nl80211_parse_key(info, &key);
1920 /* only support setting default key */
1921 if (!key.def && !key.defmgmt)
1924 wdev_lock(dev->ieee80211_ptr);
1927 if (!rdev->ops->set_default_key) {
1932 err = nl80211_key_allowed(dev->ieee80211_ptr);
1936 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1937 key.def_uni, key.def_multi);
1942 #ifdef CONFIG_CFG80211_WEXT
1943 dev->ieee80211_ptr->wext.default_key = key.idx;
1946 if (key.def_uni || !key.def_multi) {
1951 if (!rdev->ops->set_default_mgmt_key) {
1956 err = nl80211_key_allowed(dev->ieee80211_ptr);
1960 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1965 #ifdef CONFIG_CFG80211_WEXT
1966 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1971 wdev_unlock(dev->ieee80211_ptr);
1976 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1980 struct net_device *dev = info->user_ptr[1];
1981 struct key_parse key;
1982 const u8 *mac_addr = NULL;
1984 err = nl80211_parse_key(info, &key);
1991 if (info->attrs[NL80211_ATTR_MAC])
1992 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1994 if (key.type == -1) {
1996 key.type = NL80211_KEYTYPE_PAIRWISE;
1998 key.type = NL80211_KEYTYPE_GROUP;
2002 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2003 key.type != NL80211_KEYTYPE_GROUP)
2006 if (!rdev->ops->add_key)
2009 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2010 key.type == NL80211_KEYTYPE_PAIRWISE,
2014 wdev_lock(dev->ieee80211_ptr);
2015 err = nl80211_key_allowed(dev->ieee80211_ptr);
2017 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2018 key.type == NL80211_KEYTYPE_PAIRWISE,
2020 wdev_unlock(dev->ieee80211_ptr);
2025 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2029 struct net_device *dev = info->user_ptr[1];
2030 u8 *mac_addr = NULL;
2031 struct key_parse key;
2033 err = nl80211_parse_key(info, &key);
2037 if (info->attrs[NL80211_ATTR_MAC])
2038 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2040 if (key.type == -1) {
2042 key.type = NL80211_KEYTYPE_PAIRWISE;
2044 key.type = NL80211_KEYTYPE_GROUP;
2048 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2049 key.type != NL80211_KEYTYPE_GROUP)
2052 if (!rdev->ops->del_key)
2055 wdev_lock(dev->ieee80211_ptr);
2056 err = nl80211_key_allowed(dev->ieee80211_ptr);
2058 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2059 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2063 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2064 key.type == NL80211_KEYTYPE_PAIRWISE,
2067 #ifdef CONFIG_CFG80211_WEXT
2069 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2070 dev->ieee80211_ptr->wext.default_key = -1;
2071 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2072 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2075 wdev_unlock(dev->ieee80211_ptr);
2080 static int nl80211_parse_beacon(struct genl_info *info,
2081 struct cfg80211_beacon_data *bcn)
2083 bool haveinfo = false;
2085 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2086 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2087 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2088 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2091 memset(bcn, 0, sizeof(*bcn));
2093 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2094 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2095 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2101 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2102 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2104 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2111 if (info->attrs[NL80211_ATTR_IE]) {
2112 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2113 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2116 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2117 bcn->proberesp_ies =
2118 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2119 bcn->proberesp_ies_len =
2120 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2123 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2124 bcn->assocresp_ies =
2125 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2126 bcn->assocresp_ies_len =
2127 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2130 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2132 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2133 bcn->probe_resp_len =
2134 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2140 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2143 struct net_device *dev = info->user_ptr[1];
2144 struct wireless_dev *wdev = dev->ieee80211_ptr;
2145 struct cfg80211_ap_settings params;
2148 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2149 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2152 if (!rdev->ops->start_ap)
2155 if (wdev->beacon_interval)
2158 memset(¶ms, 0, sizeof(params));
2160 /* these are required for START_AP */
2161 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2162 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2163 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2166 err = nl80211_parse_beacon(info, ¶ms.beacon);
2170 params.beacon_interval =
2171 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2172 params.dtim_period =
2173 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2175 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2180 * In theory, some of these attributes should be required here
2181 * but since they were not used when the command was originally
2182 * added, keep them optional for old user space programs to let
2183 * them continue to work with drivers that do not need the
2184 * additional information -- drivers must check!
2186 if (info->attrs[NL80211_ATTR_SSID]) {
2187 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2189 nla_len(info->attrs[NL80211_ATTR_SSID]);
2190 if (params.ssid_len == 0 ||
2191 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2195 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2196 params.hidden_ssid = nla_get_u32(
2197 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2198 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2199 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2200 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2204 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2206 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2207 params.auth_type = nla_get_u32(
2208 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2209 if (!nl80211_valid_auth_type(params.auth_type))
2212 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2214 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2215 NL80211_MAX_NR_CIPHER_SUITES);
2219 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2220 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2222 params.inactivity_timeout = nla_get_u16(
2223 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2226 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2228 wdev->beacon_interval = params.beacon_interval;
2232 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2235 struct net_device *dev = info->user_ptr[1];
2236 struct wireless_dev *wdev = dev->ieee80211_ptr;
2237 struct cfg80211_beacon_data params;
2240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2241 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2244 if (!rdev->ops->change_beacon)
2247 if (!wdev->beacon_interval)
2250 err = nl80211_parse_beacon(info, ¶ms);
2254 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2257 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2260 struct net_device *dev = info->user_ptr[1];
2261 struct wireless_dev *wdev = dev->ieee80211_ptr;
2264 if (!rdev->ops->stop_ap)
2267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2271 if (!wdev->beacon_interval)
2274 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2276 wdev->beacon_interval = 0;
2280 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2281 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2282 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2283 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2284 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2285 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2286 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2289 static int parse_station_flags(struct genl_info *info,
2290 enum nl80211_iftype iftype,
2291 struct station_parameters *params)
2293 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2298 * Try parsing the new attribute first so userspace
2299 * can specify both for older kernels.
2301 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2303 struct nl80211_sta_flag_update *sta_flags;
2305 sta_flags = nla_data(nla);
2306 params->sta_flags_mask = sta_flags->mask;
2307 params->sta_flags_set = sta_flags->set;
2308 if ((params->sta_flags_mask |
2309 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2314 /* if present, parse the old attribute */
2316 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2320 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2321 nla, sta_flags_policy))
2325 * Only allow certain flags for interface types so that
2326 * other attributes are silently ignored. Remember that
2327 * this is backward compatibility code with old userspace
2328 * and shouldn't be hit in other cases anyway.
2331 case NL80211_IFTYPE_AP:
2332 case NL80211_IFTYPE_AP_VLAN:
2333 case NL80211_IFTYPE_P2P_GO:
2334 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2335 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2336 BIT(NL80211_STA_FLAG_WME) |
2337 BIT(NL80211_STA_FLAG_MFP);
2339 case NL80211_IFTYPE_P2P_CLIENT:
2340 case NL80211_IFTYPE_STATION:
2341 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2342 BIT(NL80211_STA_FLAG_TDLS_PEER);
2344 case NL80211_IFTYPE_MESH_POINT:
2345 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2346 BIT(NL80211_STA_FLAG_MFP) |
2347 BIT(NL80211_STA_FLAG_AUTHORIZED);
2352 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2354 params->sta_flags_set |= (1<<flag);
2359 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2362 struct nlattr *rate;
2365 rate = nla_nest_start(msg, attr);
2367 goto nla_put_failure;
2369 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2370 bitrate = cfg80211_calculate_bitrate(info);
2372 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2374 if (info->flags & RATE_INFO_FLAGS_MCS)
2375 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2376 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2377 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2378 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2379 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2381 nla_nest_end(msg, rate);
2388 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2390 struct cfg80211_registered_device *rdev,
2391 struct net_device *dev,
2392 const u8 *mac_addr, struct station_info *sinfo)
2395 struct nlattr *sinfoattr, *bss_param;
2397 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2401 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2402 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2404 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2406 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2408 goto nla_put_failure;
2409 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2410 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2411 sinfo->connected_time);
2412 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2413 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2414 sinfo->inactive_time);
2415 if (sinfo->filled & STATION_INFO_RX_BYTES)
2416 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2418 if (sinfo->filled & STATION_INFO_TX_BYTES)
2419 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2421 if (sinfo->filled & STATION_INFO_LLID)
2422 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2424 if (sinfo->filled & STATION_INFO_PLID)
2425 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2427 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2428 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2429 sinfo->plink_state);
2430 switch (rdev->wiphy.signal_type) {
2431 case CFG80211_SIGNAL_TYPE_MBM:
2432 if (sinfo->filled & STATION_INFO_SIGNAL)
2433 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2435 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2436 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2442 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2443 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2444 NL80211_STA_INFO_TX_BITRATE))
2445 goto nla_put_failure;
2447 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2448 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2449 NL80211_STA_INFO_RX_BITRATE))
2450 goto nla_put_failure;
2452 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2453 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2455 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2456 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2458 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2459 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2461 if (sinfo->filled & STATION_INFO_TX_FAILED)
2462 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2464 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2465 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2466 sinfo->beacon_loss_count);
2467 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2468 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2470 goto nla_put_failure;
2472 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2473 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2474 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2475 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2476 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2478 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2479 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2480 sinfo->bss_param.dtim_period);
2481 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2482 sinfo->bss_param.beacon_interval);
2484 nla_nest_end(msg, bss_param);
2486 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2487 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2488 sizeof(struct nl80211_sta_flag_update),
2490 nla_nest_end(msg, sinfoattr);
2492 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2493 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2494 sinfo->assoc_req_ies);
2496 return genlmsg_end(msg, hdr);
2499 genlmsg_cancel(msg, hdr);
2503 static int nl80211_dump_station(struct sk_buff *skb,
2504 struct netlink_callback *cb)
2506 struct station_info sinfo;
2507 struct cfg80211_registered_device *dev;
2508 struct net_device *netdev;
2509 u8 mac_addr[ETH_ALEN];
2510 int sta_idx = cb->args[1];
2513 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2517 if (!dev->ops->dump_station) {
2523 memset(&sinfo, 0, sizeof(sinfo));
2524 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2531 if (nl80211_send_station(skb,
2532 NETLINK_CB(cb->skb).pid,
2533 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2534 dev, netdev, mac_addr,
2543 cb->args[1] = sta_idx;
2546 nl80211_finish_netdev_dump(dev);
2551 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2554 struct net_device *dev = info->user_ptr[1];
2555 struct station_info sinfo;
2556 struct sk_buff *msg;
2557 u8 *mac_addr = NULL;
2560 memset(&sinfo, 0, sizeof(sinfo));
2562 if (!info->attrs[NL80211_ATTR_MAC])
2565 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2567 if (!rdev->ops->get_station)
2570 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2578 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2579 rdev, dev, mac_addr, &sinfo) < 0) {
2584 return genlmsg_reply(msg, info);
2588 * Get vlan interface making sure it is running and on the right wiphy.
2590 static struct net_device *get_vlan(struct genl_info *info,
2591 struct cfg80211_registered_device *rdev)
2593 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2594 struct net_device *v;
2600 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2602 return ERR_PTR(-ENODEV);
2604 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2609 if (!netif_running(v)) {
2617 return ERR_PTR(ret);
2620 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2624 struct net_device *dev = info->user_ptr[1];
2625 struct station_parameters params;
2626 u8 *mac_addr = NULL;
2628 memset(¶ms, 0, sizeof(params));
2630 params.listen_interval = -1;
2631 params.plink_state = -1;
2633 if (info->attrs[NL80211_ATTR_STA_AID])
2636 if (!info->attrs[NL80211_ATTR_MAC])
2639 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2641 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2642 params.supported_rates =
2643 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2644 params.supported_rates_len =
2645 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2648 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2649 params.listen_interval =
2650 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2652 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2654 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2656 if (!rdev->ops->change_station)
2659 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2662 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2663 params.plink_action =
2664 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2666 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2667 params.plink_state =
2668 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2670 switch (dev->ieee80211_ptr->iftype) {
2671 case NL80211_IFTYPE_AP:
2672 case NL80211_IFTYPE_AP_VLAN:
2673 case NL80211_IFTYPE_P2P_GO:
2674 /* disallow mesh-specific things */
2675 if (params.plink_action)
2678 /* TDLS can't be set, ... */
2679 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2682 * ... but don't bother the driver with it. This works around
2683 * a hostapd/wpa_supplicant issue -- it always includes the
2684 * TLDS_PEER flag in the mask even for AP mode.
2686 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2688 /* accept only the listed bits */
2689 if (params.sta_flags_mask &
2690 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2691 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2692 BIT(NL80211_STA_FLAG_WME) |
2693 BIT(NL80211_STA_FLAG_MFP)))
2696 /* must be last in here for error handling */
2697 params.vlan = get_vlan(info, rdev);
2698 if (IS_ERR(params.vlan))
2699 return PTR_ERR(params.vlan);
2701 case NL80211_IFTYPE_P2P_CLIENT:
2702 case NL80211_IFTYPE_STATION:
2704 * Don't allow userspace to change the TDLS_PEER flag,
2705 * but silently ignore attempts to change it since we
2706 * don't have state here to verify that it doesn't try
2707 * to change the flag.
2709 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2711 case NL80211_IFTYPE_ADHOC:
2712 /* disallow things sta doesn't support */
2713 if (params.plink_action)
2717 if (params.listen_interval >= 0)
2719 /* reject any changes other than AUTHORIZED */
2720 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2723 case NL80211_IFTYPE_MESH_POINT:
2724 /* disallow things mesh doesn't support */
2729 if (params.listen_interval >= 0)
2732 * No special handling for TDLS here -- the userspace
2733 * mesh code doesn't have this bug.
2735 if (params.sta_flags_mask &
2736 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2737 BIT(NL80211_STA_FLAG_MFP) |
2738 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2745 /* be aware of params.vlan when changing code here */
2747 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2750 dev_put(params.vlan);
2755 static struct nla_policy
2756 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2757 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2758 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2761 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2765 struct net_device *dev = info->user_ptr[1];
2766 struct station_parameters params;
2767 u8 *mac_addr = NULL;
2769 memset(¶ms, 0, sizeof(params));
2771 if (!info->attrs[NL80211_ATTR_MAC])
2774 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2777 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2780 if (!info->attrs[NL80211_ATTR_STA_AID])
2783 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2784 params.supported_rates =
2785 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2786 params.supported_rates_len =
2787 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2788 params.listen_interval =
2789 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2791 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2792 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2795 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2797 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2799 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2800 params.plink_action =
2801 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2803 if (!rdev->ops->add_station)
2806 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2809 switch (dev->ieee80211_ptr->iftype) {
2810 case NL80211_IFTYPE_AP:
2811 case NL80211_IFTYPE_AP_VLAN:
2812 case NL80211_IFTYPE_P2P_GO:
2813 /* parse WME attributes if sta is WME capable */
2814 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2815 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2816 info->attrs[NL80211_ATTR_STA_WME]) {
2817 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2820 nla = info->attrs[NL80211_ATTR_STA_WME];
2821 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2822 nl80211_sta_wme_policy);
2826 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2827 params.uapsd_queues =
2828 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2829 if (params.uapsd_queues &
2830 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2833 if (tb[NL80211_STA_WME_MAX_SP])
2835 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2838 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2841 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2843 /* TDLS peers cannot be added */
2844 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2846 /* but don't bother the driver with it */
2847 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2849 /* must be last in here for error handling */
2850 params.vlan = get_vlan(info, rdev);
2851 if (IS_ERR(params.vlan))
2852 return PTR_ERR(params.vlan);
2854 case NL80211_IFTYPE_MESH_POINT:
2855 /* TDLS peers cannot be added */
2856 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2859 case NL80211_IFTYPE_STATION:
2860 /* Only TDLS peers can be added */
2861 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2863 /* Can only add if TDLS ... */
2864 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2866 /* ... with external setup is supported */
2867 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2874 /* be aware of params.vlan when changing code here */
2876 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2879 dev_put(params.vlan);
2883 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2886 struct net_device *dev = info->user_ptr[1];
2887 u8 *mac_addr = NULL;
2889 if (info->attrs[NL80211_ATTR_MAC])
2890 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2898 if (!rdev->ops->del_station)
2901 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2904 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2905 int flags, struct net_device *dev,
2906 u8 *dst, u8 *next_hop,
2907 struct mpath_info *pinfo)
2910 struct nlattr *pinfoattr;
2912 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2916 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2917 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2918 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2920 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2922 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2924 goto nla_put_failure;
2925 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2926 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2928 if (pinfo->filled & MPATH_INFO_SN)
2929 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2931 if (pinfo->filled & MPATH_INFO_METRIC)
2932 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2934 if (pinfo->filled & MPATH_INFO_EXPTIME)
2935 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2937 if (pinfo->filled & MPATH_INFO_FLAGS)
2938 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2940 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2941 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2942 pinfo->discovery_timeout);
2943 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2944 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2945 pinfo->discovery_retries);
2947 nla_nest_end(msg, pinfoattr);
2949 return genlmsg_end(msg, hdr);
2952 genlmsg_cancel(msg, hdr);
2956 static int nl80211_dump_mpath(struct sk_buff *skb,
2957 struct netlink_callback *cb)
2959 struct mpath_info pinfo;
2960 struct cfg80211_registered_device *dev;
2961 struct net_device *netdev;
2963 u8 next_hop[ETH_ALEN];
2964 int path_idx = cb->args[1];
2967 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2971 if (!dev->ops->dump_mpath) {
2976 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2982 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2983 dst, next_hop, &pinfo);
2989 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2990 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2991 netdev, dst, next_hop,
3000 cb->args[1] = path_idx;
3003 nl80211_finish_netdev_dump(dev);
3007 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3011 struct net_device *dev = info->user_ptr[1];
3012 struct mpath_info pinfo;
3013 struct sk_buff *msg;
3015 u8 next_hop[ETH_ALEN];
3017 memset(&pinfo, 0, sizeof(pinfo));
3019 if (!info->attrs[NL80211_ATTR_MAC])
3022 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3024 if (!rdev->ops->get_mpath)
3027 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3030 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3034 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3038 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3039 dev, dst, next_hop, &pinfo) < 0) {
3044 return genlmsg_reply(msg, info);
3047 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3050 struct net_device *dev = info->user_ptr[1];
3052 u8 *next_hop = NULL;
3054 if (!info->attrs[NL80211_ATTR_MAC])
3057 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3060 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3061 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3063 if (!rdev->ops->change_mpath)
3066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3069 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3072 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3075 struct net_device *dev = info->user_ptr[1];
3077 u8 *next_hop = NULL;
3079 if (!info->attrs[NL80211_ATTR_MAC])
3082 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3085 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3086 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3088 if (!rdev->ops->add_mpath)
3091 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3094 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3097 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3100 struct net_device *dev = info->user_ptr[1];
3103 if (info->attrs[NL80211_ATTR_MAC])
3104 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3106 if (!rdev->ops->del_mpath)
3109 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3112 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3115 struct net_device *dev = info->user_ptr[1];
3116 struct bss_parameters params;
3118 memset(¶ms, 0, sizeof(params));
3119 /* default to not changing parameters */
3120 params.use_cts_prot = -1;
3121 params.use_short_preamble = -1;
3122 params.use_short_slot_time = -1;
3123 params.ap_isolate = -1;
3124 params.ht_opmode = -1;
3126 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3127 params.use_cts_prot =
3128 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3129 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3130 params.use_short_preamble =
3131 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3132 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3133 params.use_short_slot_time =
3134 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3135 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3136 params.basic_rates =
3137 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3138 params.basic_rates_len =
3139 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3141 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3142 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3143 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3145 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3147 if (!rdev->ops->change_bss)
3150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3154 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3157 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3158 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3159 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3160 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3161 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3162 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3163 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3166 static int parse_reg_rule(struct nlattr *tb[],
3167 struct ieee80211_reg_rule *reg_rule)
3169 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3170 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3172 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3174 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3176 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3178 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3180 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3183 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3185 freq_range->start_freq_khz =
3186 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3187 freq_range->end_freq_khz =
3188 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3189 freq_range->max_bandwidth_khz =
3190 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3192 power_rule->max_eirp =
3193 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3195 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3196 power_rule->max_antenna_gain =
3197 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3202 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3208 * You should only get this when cfg80211 hasn't yet initialized
3209 * completely when built-in to the kernel right between the time
3210 * window between nl80211_init() and regulatory_init(), if that is
3213 mutex_lock(&cfg80211_mutex);
3214 if (unlikely(!cfg80211_regdomain)) {
3215 mutex_unlock(&cfg80211_mutex);
3216 return -EINPROGRESS;
3218 mutex_unlock(&cfg80211_mutex);
3220 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3223 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3225 r = regulatory_hint_user(data);
3230 static int nl80211_get_mesh_config(struct sk_buff *skb,
3231 struct genl_info *info)
3233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3234 struct net_device *dev = info->user_ptr[1];
3235 struct wireless_dev *wdev = dev->ieee80211_ptr;
3236 struct mesh_config cur_params;
3239 struct nlattr *pinfoattr;
3240 struct sk_buff *msg;
3242 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3245 if (!rdev->ops->get_mesh_config)
3249 /* If not connected, get default parameters */
3250 if (!wdev->mesh_id_len)
3251 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3253 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3260 /* Draw up a netlink message to send back */
3261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3264 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3265 NL80211_CMD_GET_MESH_CONFIG);
3268 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3270 goto nla_put_failure;
3271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3272 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3273 cur_params.dot11MeshRetryTimeout);
3274 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3275 cur_params.dot11MeshConfirmTimeout);
3276 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3277 cur_params.dot11MeshHoldingTimeout);
3278 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3279 cur_params.dot11MeshMaxPeerLinks);
3280 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3281 cur_params.dot11MeshMaxRetries);
3282 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3283 cur_params.dot11MeshTTL);
3284 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3285 cur_params.element_ttl);
3286 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3287 cur_params.auto_open_plinks);
3288 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3289 cur_params.dot11MeshHWMPmaxPREQretries);
3290 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3291 cur_params.path_refresh_time);
3292 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3293 cur_params.min_discovery_timeout);
3294 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3295 cur_params.dot11MeshHWMPactivePathTimeout);
3296 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3297 cur_params.dot11MeshHWMPpreqMinInterval);
3298 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3299 cur_params.dot11MeshHWMPperrMinInterval);
3300 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3301 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3302 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3303 cur_params.dot11MeshHWMPRootMode);
3304 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3305 cur_params.dot11MeshHWMPRannInterval);
3306 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3307 cur_params.dot11MeshGateAnnouncementProtocol);
3308 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3309 cur_params.dot11MeshForwarding);
3310 NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3311 cur_params.rssi_threshold);
3312 nla_nest_end(msg, pinfoattr);
3313 genlmsg_end(msg, hdr);
3314 return genlmsg_reply(msg, info);
3317 genlmsg_cancel(msg, hdr);
3323 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3324 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3325 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3326 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3327 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3328 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3329 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3330 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3331 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3333 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3334 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3335 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3336 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3337 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3338 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3339 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3340 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3341 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3342 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3343 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3344 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
3347 static const struct nla_policy
3348 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3349 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3350 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3351 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3352 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3353 .len = IEEE80211_MAX_DATA_LEN },
3354 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3357 static int nl80211_parse_mesh_config(struct genl_info *info,
3358 struct mesh_config *cfg,
3361 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3364 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3366 if (table[attr_num]) {\
3367 cfg->param = nla_fn(table[attr_num]); \
3368 mask |= (1 << (attr_num - 1)); \
3373 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3375 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3376 info->attrs[NL80211_ATTR_MESH_CONFIG],
3377 nl80211_meshconf_params_policy))
3380 /* This makes sure that there aren't more than 32 mesh config
3381 * parameters (otherwise our bitfield scheme would not work.) */
3382 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3384 /* Fill in the params struct */
3385 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3386 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3388 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3389 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3390 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3391 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3392 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3393 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3394 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3395 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3396 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3397 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3398 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3399 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3400 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3401 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3402 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3404 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3405 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3406 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3407 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3409 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3410 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3413 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3415 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3416 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3418 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3419 dot11MeshHWMPnetDiameterTraversalTime,
3420 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3422 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3423 dot11MeshHWMPRootMode, mask,
3424 NL80211_MESHCONF_HWMP_ROOTMODE,
3426 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3427 dot11MeshHWMPRannInterval, mask,
3428 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3430 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3431 dot11MeshGateAnnouncementProtocol, mask,
3432 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3434 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3435 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
3436 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3437 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
3443 #undef FILL_IN_MESH_PARAM_IF_SET
3446 static int nl80211_parse_mesh_setup(struct genl_info *info,
3447 struct mesh_setup *setup)
3449 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3451 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3453 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3454 info->attrs[NL80211_ATTR_MESH_SETUP],
3455 nl80211_mesh_setup_params_policy))
3458 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3459 setup->path_sel_proto =
3460 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3461 IEEE80211_PATH_PROTOCOL_VENDOR :
3462 IEEE80211_PATH_PROTOCOL_HWMP;
3464 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3465 setup->path_metric =
3466 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3467 IEEE80211_PATH_METRIC_VENDOR :
3468 IEEE80211_PATH_METRIC_AIRTIME;
3471 if (tb[NL80211_MESH_SETUP_IE]) {
3472 struct nlattr *ieattr =
3473 tb[NL80211_MESH_SETUP_IE];
3474 if (!is_valid_ie_attr(ieattr))
3476 setup->ie = nla_data(ieattr);
3477 setup->ie_len = nla_len(ieattr);
3479 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3480 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3485 static int nl80211_update_mesh_config(struct sk_buff *skb,
3486 struct genl_info *info)
3488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3489 struct net_device *dev = info->user_ptr[1];
3490 struct wireless_dev *wdev = dev->ieee80211_ptr;
3491 struct mesh_config cfg;
3495 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3498 if (!rdev->ops->update_mesh_config)
3501 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3506 if (!wdev->mesh_id_len)
3510 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3518 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3520 struct sk_buff *msg;
3522 struct nlattr *nl_reg_rules;
3526 mutex_lock(&cfg80211_mutex);
3528 if (!cfg80211_regdomain)
3531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3537 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3538 NL80211_CMD_GET_REG);
3542 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3543 cfg80211_regdomain->alpha2);
3544 if (cfg80211_regdomain->dfs_region)
3545 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3546 cfg80211_regdomain->dfs_region);
3548 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3550 goto nla_put_failure;
3552 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3553 struct nlattr *nl_reg_rule;
3554 const struct ieee80211_reg_rule *reg_rule;
3555 const struct ieee80211_freq_range *freq_range;
3556 const struct ieee80211_power_rule *power_rule;
3558 reg_rule = &cfg80211_regdomain->reg_rules[i];
3559 freq_range = ®_rule->freq_range;
3560 power_rule = ®_rule->power_rule;
3562 nl_reg_rule = nla_nest_start(msg, i);
3564 goto nla_put_failure;
3566 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3568 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3569 freq_range->start_freq_khz);
3570 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3571 freq_range->end_freq_khz);
3572 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3573 freq_range->max_bandwidth_khz);
3574 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3575 power_rule->max_antenna_gain);
3576 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3577 power_rule->max_eirp);
3579 nla_nest_end(msg, nl_reg_rule);
3582 nla_nest_end(msg, nl_reg_rules);
3584 genlmsg_end(msg, hdr);
3585 err = genlmsg_reply(msg, info);
3589 genlmsg_cancel(msg, hdr);
3594 mutex_unlock(&cfg80211_mutex);
3598 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3600 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3601 struct nlattr *nl_reg_rule;
3602 char *alpha2 = NULL;
3603 int rem_reg_rules = 0, r = 0;
3604 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3606 struct ieee80211_regdomain *rd = NULL;
3608 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3611 if (!info->attrs[NL80211_ATTR_REG_RULES])
3614 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3616 if (info->attrs[NL80211_ATTR_DFS_REGION])
3617 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3619 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3622 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3626 mutex_lock(&cfg80211_mutex);
3628 if (!reg_is_valid_request(alpha2)) {
3633 size_of_regd = sizeof(struct ieee80211_regdomain) +
3634 (num_rules * sizeof(struct ieee80211_reg_rule));
3636 rd = kzalloc(size_of_regd, GFP_KERNEL);
3642 rd->n_reg_rules = num_rules;
3643 rd->alpha2[0] = alpha2[0];
3644 rd->alpha2[1] = alpha2[1];
3647 * Disable DFS master mode if the DFS region was
3648 * not supported or known on this kernel.
3650 if (reg_supported_dfs_region(dfs_region))
3651 rd->dfs_region = dfs_region;
3653 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3655 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3656 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3658 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3664 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3670 BUG_ON(rule_idx != num_rules);
3674 mutex_unlock(&cfg80211_mutex);
3679 mutex_unlock(&cfg80211_mutex);
3684 static int validate_scan_freqs(struct nlattr *freqs)
3686 struct nlattr *attr1, *attr2;
3687 int n_channels = 0, tmp1, tmp2;
3689 nla_for_each_nested(attr1, freqs, tmp1) {
3692 * Some hardware has a limited channel list for
3693 * scanning, and it is pretty much nonsensical
3694 * to scan for a channel twice, so disallow that
3695 * and don't require drivers to check that the
3696 * channel list they get isn't longer than what
3697 * they can scan, as long as they can scan all
3698 * the channels they registered at once.
3700 nla_for_each_nested(attr2, freqs, tmp2)
3701 if (attr1 != attr2 &&
3702 nla_get_u32(attr1) == nla_get_u32(attr2))
3709 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3712 struct net_device *dev = info->user_ptr[1];
3713 struct cfg80211_scan_request *request;
3714 struct nlattr *attr;
3715 struct wiphy *wiphy;
3716 int err, tmp, n_ssids = 0, n_channels, i;
3719 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3722 wiphy = &rdev->wiphy;
3724 if (!rdev->ops->scan)
3730 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3731 n_channels = validate_scan_freqs(
3732 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3736 enum ieee80211_band band;
3739 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3740 if (wiphy->bands[band])
3741 n_channels += wiphy->bands[band]->n_channels;
3744 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3745 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3748 if (n_ssids > wiphy->max_scan_ssids)
3751 if (info->attrs[NL80211_ATTR_IE])
3752 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3756 if (ie_len > wiphy->max_scan_ie_len)
3759 request = kzalloc(sizeof(*request)
3760 + sizeof(*request->ssids) * n_ssids
3761 + sizeof(*request->channels) * n_channels
3762 + ie_len, GFP_KERNEL);
3767 request->ssids = (void *)&request->channels[n_channels];
3768 request->n_ssids = n_ssids;
3771 request->ie = (void *)(request->ssids + n_ssids);
3773 request->ie = (void *)(request->channels + n_channels);
3777 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3778 /* user specified, bail out if channel not found */
3779 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3780 struct ieee80211_channel *chan;
3782 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3789 /* ignore disabled channels */
3790 if (chan->flags & IEEE80211_CHAN_DISABLED)
3793 request->channels[i] = chan;
3797 enum ieee80211_band band;
3800 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3802 if (!wiphy->bands[band])
3804 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3805 struct ieee80211_channel *chan;
3807 chan = &wiphy->bands[band]->channels[j];
3809 if (chan->flags & IEEE80211_CHAN_DISABLED)
3812 request->channels[i] = chan;
3823 request->n_channels = i;
3826 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3827 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3828 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3832 request->ssids[i].ssid_len = nla_len(attr);
3833 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3838 if (info->attrs[NL80211_ATTR_IE]) {
3839 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3840 memcpy((void *)request->ie,
3841 nla_data(info->attrs[NL80211_ATTR_IE]),
3845 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3846 if (wiphy->bands[i])
3848 (1 << wiphy->bands[i]->n_bitrates) - 1;
3850 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3851 nla_for_each_nested(attr,
3852 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3854 enum ieee80211_band band = nla_type(attr);
3856 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3860 err = ieee80211_get_ratemask(wiphy->bands[band],
3863 &request->rates[band]);
3870 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3873 request->wiphy = &rdev->wiphy;
3875 rdev->scan_req = request;
3876 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3879 nl80211_send_scan_start(rdev, dev);
3883 rdev->scan_req = NULL;
3890 static int nl80211_start_sched_scan(struct sk_buff *skb,
3891 struct genl_info *info)
3893 struct cfg80211_sched_scan_request *request;
3894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3895 struct net_device *dev = info->user_ptr[1];
3896 struct nlattr *attr;
3897 struct wiphy *wiphy;
3898 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3900 enum ieee80211_band band;
3902 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3904 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3905 !rdev->ops->sched_scan_start)
3908 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3911 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3914 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3918 wiphy = &rdev->wiphy;
3920 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3921 n_channels = validate_scan_freqs(
3922 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3928 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3929 if (wiphy->bands[band])
3930 n_channels += wiphy->bands[band]->n_channels;
3933 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3934 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3938 if (n_ssids > wiphy->max_sched_scan_ssids)
3941 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3942 nla_for_each_nested(attr,
3943 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3947 if (n_match_sets > wiphy->max_match_sets)
3950 if (info->attrs[NL80211_ATTR_IE])
3951 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3955 if (ie_len > wiphy->max_sched_scan_ie_len)
3958 mutex_lock(&rdev->sched_scan_mtx);
3960 if (rdev->sched_scan_req) {
3965 request = kzalloc(sizeof(*request)
3966 + sizeof(*request->ssids) * n_ssids
3967 + sizeof(*request->match_sets) * n_match_sets
3968 + sizeof(*request->channels) * n_channels
3969 + ie_len, GFP_KERNEL);
3976 request->ssids = (void *)&request->channels[n_channels];
3977 request->n_ssids = n_ssids;
3980 request->ie = (void *)(request->ssids + n_ssids);
3982 request->ie = (void *)(request->channels + n_channels);
3987 request->match_sets = (void *)(request->ie + ie_len);
3988 else if (request->ssids)
3989 request->match_sets =
3990 (void *)(request->ssids + n_ssids);
3992 request->match_sets =
3993 (void *)(request->channels + n_channels);
3995 request->n_match_sets = n_match_sets;
3998 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3999 /* user specified, bail out if channel not found */
4000 nla_for_each_nested(attr,
4001 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4003 struct ieee80211_channel *chan;
4005 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4012 /* ignore disabled channels */
4013 if (chan->flags & IEEE80211_CHAN_DISABLED)
4016 request->channels[i] = chan;
4021 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4023 if (!wiphy->bands[band])
4025 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4026 struct ieee80211_channel *chan;
4028 chan = &wiphy->bands[band]->channels[j];
4030 if (chan->flags & IEEE80211_CHAN_DISABLED)
4033 request->channels[i] = chan;
4044 request->n_channels = i;
4047 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4048 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4050 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4054 request->ssids[i].ssid_len = nla_len(attr);
4055 memcpy(request->ssids[i].ssid, nla_data(attr),
4062 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4063 nla_for_each_nested(attr,
4064 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4066 struct nlattr *ssid;
4068 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4069 nla_data(attr), nla_len(attr),
4070 nl80211_match_policy);
4071 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4073 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4077 memcpy(request->match_sets[i].ssid.ssid,
4078 nla_data(ssid), nla_len(ssid));
4079 request->match_sets[i].ssid.ssid_len =
4086 if (info->attrs[NL80211_ATTR_IE]) {
4087 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4088 memcpy((void *)request->ie,
4089 nla_data(info->attrs[NL80211_ATTR_IE]),
4094 request->wiphy = &rdev->wiphy;
4095 request->interval = interval;
4097 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4099 rdev->sched_scan_req = request;
4100 nl80211_send_sched_scan(rdev, dev,
4101 NL80211_CMD_START_SCHED_SCAN);
4108 mutex_unlock(&rdev->sched_scan_mtx);
4112 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4113 struct genl_info *info)
4115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4118 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4119 !rdev->ops->sched_scan_stop)
4122 mutex_lock(&rdev->sched_scan_mtx);
4123 err = __cfg80211_stop_sched_scan(rdev, false);
4124 mutex_unlock(&rdev->sched_scan_mtx);
4129 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4131 struct cfg80211_registered_device *rdev,
4132 struct wireless_dev *wdev,
4133 struct cfg80211_internal_bss *intbss)
4135 struct cfg80211_bss *res = &intbss->pub;
4139 ASSERT_WDEV_LOCK(wdev);
4141 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4142 NL80211_CMD_NEW_SCAN_RESULTS);
4146 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4148 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
4149 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
4151 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4153 goto nla_put_failure;
4154 if (!is_zero_ether_addr(res->bssid))
4155 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4156 if (res->information_elements && res->len_information_elements)
4157 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4158 res->len_information_elements,
4159 res->information_elements);
4160 if (res->beacon_ies && res->len_beacon_ies &&
4161 res->beacon_ies != res->information_elements)
4162 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4163 res->len_beacon_ies, res->beacon_ies);
4165 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4166 if (res->beacon_interval)
4167 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4168 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4169 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
4170 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4171 jiffies_to_msecs(jiffies - intbss->ts));
4173 switch (rdev->wiphy.signal_type) {
4174 case CFG80211_SIGNAL_TYPE_MBM:
4175 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4177 case CFG80211_SIGNAL_TYPE_UNSPEC:
4178 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4184 switch (wdev->iftype) {
4185 case NL80211_IFTYPE_P2P_CLIENT:
4186 case NL80211_IFTYPE_STATION:
4187 if (intbss == wdev->current_bss)
4188 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4189 NL80211_BSS_STATUS_ASSOCIATED);
4191 case NL80211_IFTYPE_ADHOC:
4192 if (intbss == wdev->current_bss)
4193 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4194 NL80211_BSS_STATUS_IBSS_JOINED);
4200 nla_nest_end(msg, bss);
4202 return genlmsg_end(msg, hdr);
4205 genlmsg_cancel(msg, hdr);
4209 static int nl80211_dump_scan(struct sk_buff *skb,
4210 struct netlink_callback *cb)
4212 struct cfg80211_registered_device *rdev;
4213 struct net_device *dev;
4214 struct cfg80211_internal_bss *scan;
4215 struct wireless_dev *wdev;
4216 int start = cb->args[1], idx = 0;
4219 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4223 wdev = dev->ieee80211_ptr;
4226 spin_lock_bh(&rdev->bss_lock);
4227 cfg80211_bss_expire(rdev);
4229 cb->seq = rdev->bss_generation;
4231 list_for_each_entry(scan, &rdev->bss_list, list) {
4234 if (nl80211_send_bss(skb, cb,
4235 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4236 rdev, wdev, scan) < 0) {
4242 spin_unlock_bh(&rdev->bss_lock);
4246 nl80211_finish_netdev_dump(rdev);
4251 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4252 int flags, struct net_device *dev,
4253 struct survey_info *survey)
4256 struct nlattr *infoattr;
4258 hdr = nl80211hdr_put(msg, pid, seq, flags,
4259 NL80211_CMD_NEW_SURVEY_RESULTS);
4263 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4265 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4267 goto nla_put_failure;
4269 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4270 survey->channel->center_freq);
4271 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4272 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4274 if (survey->filled & SURVEY_INFO_IN_USE)
4275 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4276 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4277 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4278 survey->channel_time);
4279 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4280 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4281 survey->channel_time_busy);
4282 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4283 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4284 survey->channel_time_ext_busy);
4285 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4286 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4287 survey->channel_time_rx);
4288 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4289 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4290 survey->channel_time_tx);
4292 nla_nest_end(msg, infoattr);
4294 return genlmsg_end(msg, hdr);
4297 genlmsg_cancel(msg, hdr);
4301 static int nl80211_dump_survey(struct sk_buff *skb,
4302 struct netlink_callback *cb)
4304 struct survey_info survey;
4305 struct cfg80211_registered_device *dev;
4306 struct net_device *netdev;
4307 int survey_idx = cb->args[1];
4310 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4314 if (!dev->ops->dump_survey) {
4320 struct ieee80211_channel *chan;
4322 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4329 /* Survey without a channel doesn't make sense */
4330 if (!survey.channel) {
4335 chan = ieee80211_get_channel(&dev->wiphy,
4336 survey.channel->center_freq);
4337 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4342 if (nl80211_send_survey(skb,
4343 NETLINK_CB(cb->skb).pid,
4344 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4352 cb->args[1] = survey_idx;
4355 nl80211_finish_netdev_dump(dev);
4359 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4361 return auth_type <= NL80211_AUTHTYPE_MAX;
4364 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4366 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4367 NL80211_WPA_VERSION_2));
4370 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4373 struct net_device *dev = info->user_ptr[1];
4374 struct ieee80211_channel *chan;
4375 const u8 *bssid, *ssid, *ie = NULL;
4376 int err, ssid_len, ie_len = 0;
4377 enum nl80211_auth_type auth_type;
4378 struct key_parse key;
4379 bool local_state_change;
4381 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4384 if (!info->attrs[NL80211_ATTR_MAC])
4387 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4390 if (!info->attrs[NL80211_ATTR_SSID])
4393 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4396 err = nl80211_parse_key(info, &key);
4401 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4403 if (!key.p.key || !key.p.key_len)
4405 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4406 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4407 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4408 key.p.key_len != WLAN_KEY_LEN_WEP104))
4420 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4421 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4430 if (!rdev->ops->auth)
4433 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4434 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4437 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4438 chan = ieee80211_get_channel(&rdev->wiphy,
4439 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4440 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4443 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4444 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4446 if (info->attrs[NL80211_ATTR_IE]) {
4447 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4448 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4451 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4452 if (!nl80211_valid_auth_type(auth_type))
4455 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4458 * Since we no longer track auth state, ignore
4459 * requests to only change local state.
4461 if (local_state_change)
4464 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4465 ssid, ssid_len, ie, ie_len,
4466 key.p.key, key.p.key_len, key.idx);
4469 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4470 struct genl_info *info,
4471 struct cfg80211_crypto_settings *settings,
4474 memset(settings, 0, sizeof(*settings));
4476 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4478 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4480 proto = nla_get_u16(
4481 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4482 settings->control_port_ethertype = cpu_to_be16(proto);
4483 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4486 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4487 settings->control_port_no_encrypt = true;
4489 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4491 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4495 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4496 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4497 settings->n_ciphers_pairwise = len / sizeof(u32);
4499 if (len % sizeof(u32))
4502 if (settings->n_ciphers_pairwise > cipher_limit)
4505 memcpy(settings->ciphers_pairwise, data, len);
4507 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4508 if (!cfg80211_supported_cipher_suite(
4510 settings->ciphers_pairwise[i]))
4514 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4515 settings->cipher_group =
4516 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4517 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4518 settings->cipher_group))
4522 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4523 settings->wpa_versions =
4524 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4525 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4529 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4533 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4534 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4535 settings->n_akm_suites = len / sizeof(u32);
4537 if (len % sizeof(u32))
4540 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4543 memcpy(settings->akm_suites, data, len);
4549 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4552 struct net_device *dev = info->user_ptr[1];
4553 struct cfg80211_crypto_settings crypto;
4554 struct ieee80211_channel *chan;
4555 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4556 int err, ssid_len, ie_len = 0;
4557 bool use_mfp = false;
4559 struct ieee80211_ht_cap *ht_capa = NULL;
4560 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4562 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4565 if (!info->attrs[NL80211_ATTR_MAC] ||
4566 !info->attrs[NL80211_ATTR_SSID] ||
4567 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4570 if (!rdev->ops->assoc)
4573 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4574 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4577 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4579 chan = ieee80211_get_channel(&rdev->wiphy,
4580 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4581 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4584 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4585 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4587 if (info->attrs[NL80211_ATTR_IE]) {
4588 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4589 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4592 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4593 enum nl80211_mfp mfp =
4594 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4595 if (mfp == NL80211_MFP_REQUIRED)
4597 else if (mfp != NL80211_MFP_NO)
4601 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4602 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4604 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4605 flags |= ASSOC_REQ_DISABLE_HT;
4607 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4609 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4611 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4614 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4617 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4619 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4620 ssid, ssid_len, ie, ie_len, use_mfp,
4621 &crypto, flags, ht_capa,
4627 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4630 struct net_device *dev = info->user_ptr[1];
4631 const u8 *ie = NULL, *bssid;
4634 bool local_state_change;
4636 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4639 if (!info->attrs[NL80211_ATTR_MAC])
4642 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4645 if (!rdev->ops->deauth)
4648 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4649 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4652 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4654 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4655 if (reason_code == 0) {
4656 /* Reason Code 0 is reserved */
4660 if (info->attrs[NL80211_ATTR_IE]) {
4661 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4662 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4665 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4667 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4668 local_state_change);
4671 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4674 struct net_device *dev = info->user_ptr[1];
4675 const u8 *ie = NULL, *bssid;
4678 bool local_state_change;
4680 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4683 if (!info->attrs[NL80211_ATTR_MAC])
4686 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4689 if (!rdev->ops->disassoc)
4692 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4693 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4696 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4698 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4699 if (reason_code == 0) {
4700 /* Reason Code 0 is reserved */
4704 if (info->attrs[NL80211_ATTR_IE]) {
4705 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4706 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4709 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4711 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4712 local_state_change);
4716 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4717 int mcast_rate[IEEE80211_NUM_BANDS],
4720 struct wiphy *wiphy = &rdev->wiphy;
4724 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4725 struct ieee80211_supported_band *sband;
4727 sband = wiphy->bands[band];
4731 for (i = 0; i < sband->n_bitrates; i++) {
4732 if (sband->bitrates[i].bitrate == rateval) {
4733 mcast_rate[band] = i + 1;
4743 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4745 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4746 struct net_device *dev = info->user_ptr[1];
4747 struct cfg80211_ibss_params ibss;
4748 struct wiphy *wiphy;
4749 struct cfg80211_cached_keys *connkeys = NULL;
4752 memset(&ibss, 0, sizeof(ibss));
4754 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4757 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4758 !info->attrs[NL80211_ATTR_SSID] ||
4759 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4762 ibss.beacon_interval = 100;
4764 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4765 ibss.beacon_interval =
4766 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4767 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4771 if (!rdev->ops->join_ibss)
4774 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4777 wiphy = &rdev->wiphy;
4779 if (info->attrs[NL80211_ATTR_MAC]) {
4780 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4782 if (!is_valid_ether_addr(ibss.bssid))
4785 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4786 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4788 if (info->attrs[NL80211_ATTR_IE]) {
4789 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4790 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4793 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4794 enum nl80211_channel_type channel_type;
4796 channel_type = nla_get_u32(
4797 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4798 if (channel_type != NL80211_CHAN_NO_HT &&
4799 channel_type != NL80211_CHAN_HT20 &&
4800 channel_type != NL80211_CHAN_HT40MINUS &&
4801 channel_type != NL80211_CHAN_HT40PLUS)
4804 if (channel_type != NL80211_CHAN_NO_HT &&
4805 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4808 ibss.channel_type = channel_type;
4810 ibss.channel_type = NL80211_CHAN_NO_HT;
4813 ibss.channel = rdev_freq_to_chan(rdev,
4814 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4816 if (!ibss.channel ||
4817 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4818 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4821 /* Both channels should be able to initiate communication */
4822 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4823 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4824 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4828 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4829 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4831 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4833 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4835 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4836 struct ieee80211_supported_band *sband =
4837 wiphy->bands[ibss.channel->band];
4839 err = ieee80211_get_ratemask(sband, rates, n_rates,
4845 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4846 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4847 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4850 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4851 connkeys = nl80211_parse_connkeys(rdev,
4852 info->attrs[NL80211_ATTR_KEYS]);
4853 if (IS_ERR(connkeys))
4854 return PTR_ERR(connkeys);
4858 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4860 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4866 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4869 struct net_device *dev = info->user_ptr[1];
4871 if (!rdev->ops->leave_ibss)
4874 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4877 return cfg80211_leave_ibss(rdev, dev, false);
4880 #ifdef CONFIG_NL80211_TESTMODE
4881 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4885 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4890 if (!info->attrs[NL80211_ATTR_TESTDATA])
4894 if (rdev->ops->testmode_cmd) {
4895 rdev->testmode_info = info;
4896 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4897 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4898 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4899 rdev->testmode_info = NULL;
4905 static int nl80211_testmode_dump(struct sk_buff *skb,
4906 struct netlink_callback *cb)
4908 struct cfg80211_registered_device *rdev;
4916 * 0 is a valid index, but not valid for args[0],
4917 * so we need to offset by 1.
4919 phy_idx = cb->args[0] - 1;
4921 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4922 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4926 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4927 phy_idx = nla_get_u32(
4928 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4930 struct net_device *netdev;
4932 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4933 nl80211_fam.attrbuf,
4938 phy_idx = rdev->wiphy_idx;
4939 cfg80211_unlock_rdev(rdev);
4941 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4943 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4947 data = nla_data((void *)cb->args[1]);
4948 data_len = nla_len((void *)cb->args[1]);
4951 mutex_lock(&cfg80211_mutex);
4952 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4954 mutex_unlock(&cfg80211_mutex);
4957 cfg80211_lock_rdev(rdev);
4958 mutex_unlock(&cfg80211_mutex);
4960 if (!rdev->ops->testmode_dump) {
4966 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4967 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4968 NL80211_CMD_TESTMODE);
4969 struct nlattr *tmdata;
4971 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
4972 genlmsg_cancel(skb, hdr);
4976 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4978 genlmsg_cancel(skb, hdr);
4981 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4983 nla_nest_end(skb, tmdata);
4985 if (err == -ENOBUFS || err == -ENOENT) {
4986 genlmsg_cancel(skb, hdr);
4989 genlmsg_cancel(skb, hdr);
4993 genlmsg_end(skb, hdr);
4998 cb->args[0] = phy_idx + 1;
5000 cfg80211_unlock_rdev(rdev);
5004 static struct sk_buff *
5005 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5006 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5008 struct sk_buff *skb;
5010 struct nlattr *data;
5012 skb = nlmsg_new(approxlen + 100, gfp);
5016 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5022 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5023 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5025 ((void **)skb->cb)[0] = rdev;
5026 ((void **)skb->cb)[1] = hdr;
5027 ((void **)skb->cb)[2] = data;
5036 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5039 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5041 if (WARN_ON(!rdev->testmode_info))
5044 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5045 rdev->testmode_info->snd_pid,
5046 rdev->testmode_info->snd_seq,
5049 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5051 int cfg80211_testmode_reply(struct sk_buff *skb)
5053 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5054 void *hdr = ((void **)skb->cb)[1];
5055 struct nlattr *data = ((void **)skb->cb)[2];
5057 if (WARN_ON(!rdev->testmode_info)) {
5062 nla_nest_end(skb, data);
5063 genlmsg_end(skb, hdr);
5064 return genlmsg_reply(skb, rdev->testmode_info);
5066 EXPORT_SYMBOL(cfg80211_testmode_reply);
5068 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5069 int approxlen, gfp_t gfp)
5071 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5073 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5075 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5077 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5079 void *hdr = ((void **)skb->cb)[1];
5080 struct nlattr *data = ((void **)skb->cb)[2];
5082 nla_nest_end(skb, data);
5083 genlmsg_end(skb, hdr);
5084 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5086 EXPORT_SYMBOL(cfg80211_testmode_event);
5089 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5092 struct net_device *dev = info->user_ptr[1];
5093 struct cfg80211_connect_params connect;
5094 struct wiphy *wiphy;
5095 struct cfg80211_cached_keys *connkeys = NULL;
5098 memset(&connect, 0, sizeof(connect));
5100 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5103 if (!info->attrs[NL80211_ATTR_SSID] ||
5104 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5107 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5109 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5110 if (!nl80211_valid_auth_type(connect.auth_type))
5113 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5115 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5117 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5118 NL80211_MAX_NR_CIPHER_SUITES);
5122 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5123 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5126 wiphy = &rdev->wiphy;
5128 connect.bg_scan_period = -1;
5129 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5130 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5131 connect.bg_scan_period =
5132 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5135 if (info->attrs[NL80211_ATTR_MAC])
5136 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5137 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5138 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5140 if (info->attrs[NL80211_ATTR_IE]) {
5141 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5142 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5145 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5147 ieee80211_get_channel(wiphy,
5148 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5149 if (!connect.channel ||
5150 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5154 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5155 connkeys = nl80211_parse_connkeys(rdev,
5156 info->attrs[NL80211_ATTR_KEYS]);
5157 if (IS_ERR(connkeys))
5158 return PTR_ERR(connkeys);
5161 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5162 connect.flags |= ASSOC_REQ_DISABLE_HT;
5164 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5165 memcpy(&connect.ht_capa_mask,
5166 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5167 sizeof(connect.ht_capa_mask));
5169 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5170 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5172 memcpy(&connect.ht_capa,
5173 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5174 sizeof(connect.ht_capa));
5177 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5183 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5186 struct net_device *dev = info->user_ptr[1];
5189 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5190 reason = WLAN_REASON_DEAUTH_LEAVING;
5192 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5197 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5198 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5201 return cfg80211_disconnect(rdev, dev, reason, true);
5204 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5211 if (!info->attrs[NL80211_ATTR_PID])
5214 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5216 net = get_net_ns_by_pid(pid);
5218 return PTR_ERR(net);
5222 /* check if anything to do */
5223 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5224 err = cfg80211_switch_netns(rdev, net);
5230 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5233 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5234 struct cfg80211_pmksa *pmksa) = NULL;
5235 struct net_device *dev = info->user_ptr[1];
5236 struct cfg80211_pmksa pmksa;
5238 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5240 if (!info->attrs[NL80211_ATTR_MAC])
5243 if (!info->attrs[NL80211_ATTR_PMKID])
5246 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5247 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5249 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5250 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5253 switch (info->genlhdr->cmd) {
5254 case NL80211_CMD_SET_PMKSA:
5255 rdev_ops = rdev->ops->set_pmksa;
5257 case NL80211_CMD_DEL_PMKSA:
5258 rdev_ops = rdev->ops->del_pmksa;
5268 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5271 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5274 struct net_device *dev = info->user_ptr[1];
5276 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5277 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5280 if (!rdev->ops->flush_pmksa)
5283 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5286 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5289 struct net_device *dev = info->user_ptr[1];
5290 u8 action_code, dialog_token;
5294 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5295 !rdev->ops->tdls_mgmt)
5298 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5299 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5300 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5301 !info->attrs[NL80211_ATTR_IE] ||
5302 !info->attrs[NL80211_ATTR_MAC])
5305 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5306 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5307 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5308 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5310 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5311 dialog_token, status_code,
5312 nla_data(info->attrs[NL80211_ATTR_IE]),
5313 nla_len(info->attrs[NL80211_ATTR_IE]));
5316 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5319 struct net_device *dev = info->user_ptr[1];
5320 enum nl80211_tdls_operation operation;
5323 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5324 !rdev->ops->tdls_oper)
5327 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5328 !info->attrs[NL80211_ATTR_MAC])
5331 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5332 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5334 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5337 static int nl80211_remain_on_channel(struct sk_buff *skb,
5338 struct genl_info *info)
5340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5341 struct net_device *dev = info->user_ptr[1];
5342 struct ieee80211_channel *chan;
5343 struct sk_buff *msg;
5346 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5350 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5351 !info->attrs[NL80211_ATTR_DURATION])
5354 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5357 * We should be on that channel for at least one jiffie,
5358 * and more than 5 seconds seems excessive.
5360 if (!duration || !msecs_to_jiffies(duration) ||
5361 duration > rdev->wiphy.max_remain_on_channel_duration)
5364 if (!rdev->ops->remain_on_channel ||
5365 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5368 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5369 channel_type = nla_get_u32(
5370 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5371 if (channel_type != NL80211_CHAN_NO_HT &&
5372 channel_type != NL80211_CHAN_HT20 &&
5373 channel_type != NL80211_CHAN_HT40PLUS &&
5374 channel_type != NL80211_CHAN_HT40MINUS)
5378 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5379 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5387 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5388 NL80211_CMD_REMAIN_ON_CHANNEL);
5395 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5396 channel_type, duration, &cookie);
5401 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5403 genlmsg_end(msg, hdr);
5405 return genlmsg_reply(msg, info);
5414 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5415 struct genl_info *info)
5417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5418 struct net_device *dev = info->user_ptr[1];
5421 if (!info->attrs[NL80211_ATTR_COOKIE])
5424 if (!rdev->ops->cancel_remain_on_channel)
5427 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5429 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5432 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5433 u8 *rates, u8 rates_len)
5438 for (i = 0; i < rates_len; i++) {
5439 int rate = (rates[i] & 0x7f) * 5;
5441 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5442 struct ieee80211_rate *srate =
5443 &sband->bitrates[ridx];
5444 if (rate == srate->bitrate) {
5449 if (ridx == sband->n_bitrates)
5450 return 0; /* rate not found */
5456 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5457 u8 *rates, u8 rates_len,
5458 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5462 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5464 for (i = 0; i < rates_len; i++) {
5467 ridx = rates[i] / 8;
5468 rbit = BIT(rates[i] % 8);
5470 /* check validity */
5471 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5474 /* check availability */
5475 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5484 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5485 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5486 .len = NL80211_MAX_SUPP_RATES },
5487 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5488 .len = NL80211_MAX_SUPP_HT_RATES },
5491 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5492 struct genl_info *info)
5494 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5496 struct cfg80211_bitrate_mask mask;
5498 struct net_device *dev = info->user_ptr[1];
5499 struct nlattr *tx_rates;
5500 struct ieee80211_supported_band *sband;
5502 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5505 if (!rdev->ops->set_bitrate_mask)
5508 memset(&mask, 0, sizeof(mask));
5509 /* Default to all rates enabled */
5510 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5511 sband = rdev->wiphy.bands[i];
5512 mask.control[i].legacy =
5513 sband ? (1 << sband->n_bitrates) - 1 : 0;
5515 memcpy(mask.control[i].mcs,
5516 sband->ht_cap.mcs.rx_mask,
5517 sizeof(mask.control[i].mcs));
5519 memset(mask.control[i].mcs, 0,
5520 sizeof(mask.control[i].mcs));
5524 * The nested attribute uses enum nl80211_band as the index. This maps
5525 * directly to the enum ieee80211_band values used in cfg80211.
5527 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5528 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5530 enum ieee80211_band band = nla_type(tx_rates);
5531 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5533 sband = rdev->wiphy.bands[band];
5536 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5537 nla_len(tx_rates), nl80211_txattr_policy);
5538 if (tb[NL80211_TXRATE_LEGACY]) {
5539 mask.control[band].legacy = rateset_to_mask(
5541 nla_data(tb[NL80211_TXRATE_LEGACY]),
5542 nla_len(tb[NL80211_TXRATE_LEGACY]));
5544 if (tb[NL80211_TXRATE_MCS]) {
5545 if (!ht_rateset_to_mask(
5547 nla_data(tb[NL80211_TXRATE_MCS]),
5548 nla_len(tb[NL80211_TXRATE_MCS]),
5549 mask.control[band].mcs))
5553 if (mask.control[band].legacy == 0) {
5554 /* don't allow empty legacy rates if HT
5555 * is not even supported. */
5556 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5559 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5560 if (mask.control[band].mcs[i])
5563 /* legacy and mcs rates may not be both empty */
5564 if (i == IEEE80211_HT_MCS_MASK_LEN)
5569 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5572 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5575 struct net_device *dev = info->user_ptr[1];
5576 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5578 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5581 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5582 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5586 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5587 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5590 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5593 /* not much point in registering if we can't reply */
5594 if (!rdev->ops->mgmt_tx)
5597 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5599 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5600 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5603 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5606 struct net_device *dev = info->user_ptr[1];
5607 struct ieee80211_channel *chan;
5608 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5609 bool channel_type_valid = false;
5614 struct sk_buff *msg = NULL;
5615 unsigned int wait = 0;
5616 bool offchan, no_cck, dont_wait_for_ack;
5618 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5620 if (!info->attrs[NL80211_ATTR_FRAME] ||
5621 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5624 if (!rdev->ops->mgmt_tx)
5627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5631 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5632 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5633 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5636 if (info->attrs[NL80211_ATTR_DURATION]) {
5637 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5639 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5642 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5643 channel_type = nla_get_u32(
5644 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5645 if (channel_type != NL80211_CHAN_NO_HT &&
5646 channel_type != NL80211_CHAN_HT20 &&
5647 channel_type != NL80211_CHAN_HT40PLUS &&
5648 channel_type != NL80211_CHAN_HT40MINUS)
5650 channel_type_valid = true;
5653 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5655 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5658 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5660 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5661 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5665 if (!dont_wait_for_ack) {
5666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5670 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5679 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5680 channel_type_valid, wait,
5681 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5682 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5683 no_cck, dont_wait_for_ack, &cookie);
5688 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5690 genlmsg_end(msg, hdr);
5691 return genlmsg_reply(msg, info);
5703 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5706 struct net_device *dev = info->user_ptr[1];
5709 if (!info->attrs[NL80211_ATTR_COOKIE])
5712 if (!rdev->ops->mgmt_tx_cancel_wait)
5715 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5716 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5717 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5718 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5719 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5723 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5725 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5728 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5731 struct wireless_dev *wdev;
5732 struct net_device *dev = info->user_ptr[1];
5737 if (!info->attrs[NL80211_ATTR_PS_STATE])
5740 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5742 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5745 wdev = dev->ieee80211_ptr;
5747 if (!rdev->ops->set_power_mgmt)
5750 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5752 if (state == wdev->ps)
5755 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5762 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5765 enum nl80211_ps_state ps_state;
5766 struct wireless_dev *wdev;
5767 struct net_device *dev = info->user_ptr[1];
5768 struct sk_buff *msg;
5772 wdev = dev->ieee80211_ptr;
5774 if (!rdev->ops->set_power_mgmt)
5777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5781 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5782 NL80211_CMD_GET_POWER_SAVE);
5789 ps_state = NL80211_PS_ENABLED;
5791 ps_state = NL80211_PS_DISABLED;
5793 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5795 genlmsg_end(msg, hdr);
5796 return genlmsg_reply(msg, info);
5805 static struct nla_policy
5806 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5807 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5808 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5809 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5812 static int nl80211_set_cqm_rssi(struct genl_info *info,
5813 s32 threshold, u32 hysteresis)
5815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5816 struct wireless_dev *wdev;
5817 struct net_device *dev = info->user_ptr[1];
5822 wdev = dev->ieee80211_ptr;
5824 if (!rdev->ops->set_cqm_rssi_config)
5827 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5828 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5831 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5832 threshold, hysteresis);
5835 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5837 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5841 cqm = info->attrs[NL80211_ATTR_CQM];
5847 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5848 nl80211_attr_cqm_policy);
5852 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5853 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5856 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5857 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5858 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5866 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5869 struct net_device *dev = info->user_ptr[1];
5870 struct mesh_config cfg;
5871 struct mesh_setup setup;
5874 /* start with default */
5875 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5876 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5878 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5879 /* and parse parameters if given */
5880 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5885 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5886 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5889 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5890 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5892 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5893 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5894 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5897 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5898 /* parse additional setup parameters if given */
5899 err = nl80211_parse_mesh_setup(info, &setup);
5904 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5907 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5910 struct net_device *dev = info->user_ptr[1];
5912 return cfg80211_leave_mesh(rdev, dev);
5915 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5918 struct sk_buff *msg;
5921 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5928 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5929 NL80211_CMD_GET_WOWLAN);
5931 goto nla_put_failure;
5934 struct nlattr *nl_wowlan;
5936 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5938 goto nla_put_failure;
5940 if (rdev->wowlan->any)
5941 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5942 if (rdev->wowlan->disconnect)
5943 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5944 if (rdev->wowlan->magic_pkt)
5945 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5946 if (rdev->wowlan->gtk_rekey_failure)
5947 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5948 if (rdev->wowlan->eap_identity_req)
5949 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5950 if (rdev->wowlan->four_way_handshake)
5951 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5952 if (rdev->wowlan->rfkill_release)
5953 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5954 if (rdev->wowlan->n_patterns) {
5955 struct nlattr *nl_pats, *nl_pat;
5958 nl_pats = nla_nest_start(msg,
5959 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5961 goto nla_put_failure;
5963 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5964 nl_pat = nla_nest_start(msg, i + 1);
5966 goto nla_put_failure;
5967 pat_len = rdev->wowlan->patterns[i].pattern_len;
5968 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5969 DIV_ROUND_UP(pat_len, 8),
5970 rdev->wowlan->patterns[i].mask);
5971 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5973 rdev->wowlan->patterns[i].pattern);
5974 nla_nest_end(msg, nl_pat);
5976 nla_nest_end(msg, nl_pats);
5979 nla_nest_end(msg, nl_wowlan);
5982 genlmsg_end(msg, hdr);
5983 return genlmsg_reply(msg, info);
5990 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5993 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5994 struct cfg80211_wowlan no_triggers = {};
5995 struct cfg80211_wowlan new_triggers = {};
5996 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5999 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6002 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6005 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6006 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6007 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6008 nl80211_wowlan_policy);
6012 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6013 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6015 new_triggers.any = true;
6018 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6019 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6021 new_triggers.disconnect = true;
6024 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6025 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6027 new_triggers.magic_pkt = true;
6030 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6033 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6034 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6036 new_triggers.gtk_rekey_failure = true;
6039 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6040 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6042 new_triggers.eap_identity_req = true;
6045 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6046 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6048 new_triggers.four_way_handshake = true;
6051 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6052 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6054 new_triggers.rfkill_release = true;
6057 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6060 int rem, pat_len, mask_len;
6061 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6063 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6066 if (n_patterns > wowlan->n_patterns)
6069 new_triggers.patterns = kcalloc(n_patterns,
6070 sizeof(new_triggers.patterns[0]),
6072 if (!new_triggers.patterns)
6075 new_triggers.n_patterns = n_patterns;
6078 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6080 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6081 nla_data(pat), nla_len(pat), NULL);
6083 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6084 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6086 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6087 mask_len = DIV_ROUND_UP(pat_len, 8);
6088 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6091 if (pat_len > wowlan->pattern_max_len ||
6092 pat_len < wowlan->pattern_min_len)
6095 new_triggers.patterns[i].mask =
6096 kmalloc(mask_len + pat_len, GFP_KERNEL);
6097 if (!new_triggers.patterns[i].mask) {
6101 new_triggers.patterns[i].pattern =
6102 new_triggers.patterns[i].mask + mask_len;
6103 memcpy(new_triggers.patterns[i].mask,
6104 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6106 new_triggers.patterns[i].pattern_len = pat_len;
6107 memcpy(new_triggers.patterns[i].pattern,
6108 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6114 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6115 struct cfg80211_wowlan *ntrig;
6116 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6122 cfg80211_rdev_free_wowlan(rdev);
6123 rdev->wowlan = ntrig;
6126 cfg80211_rdev_free_wowlan(rdev);
6127 rdev->wowlan = NULL;
6132 for (i = 0; i < new_triggers.n_patterns; i++)
6133 kfree(new_triggers.patterns[i].mask);
6134 kfree(new_triggers.patterns);
6138 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6141 struct net_device *dev = info->user_ptr[1];
6142 struct wireless_dev *wdev = dev->ieee80211_ptr;
6143 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6144 struct cfg80211_gtk_rekey_data rekey_data;
6147 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6150 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6151 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6152 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6153 nl80211_rekey_policy);
6157 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6159 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6161 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6164 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6166 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6168 memcpy(rekey_data.replay_ctr,
6169 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6170 NL80211_REPLAY_CTR_LEN);
6173 if (!wdev->current_bss) {
6178 if (!rdev->ops->set_rekey_data) {
6183 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6189 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6190 struct genl_info *info)
6192 struct net_device *dev = info->user_ptr[1];
6193 struct wireless_dev *wdev = dev->ieee80211_ptr;
6195 if (wdev->iftype != NL80211_IFTYPE_AP &&
6196 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6199 if (wdev->ap_unexpected_nlpid)
6202 wdev->ap_unexpected_nlpid = info->snd_pid;
6206 static int nl80211_probe_client(struct sk_buff *skb,
6207 struct genl_info *info)
6209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6210 struct net_device *dev = info->user_ptr[1];
6211 struct wireless_dev *wdev = dev->ieee80211_ptr;
6212 struct sk_buff *msg;
6218 if (wdev->iftype != NL80211_IFTYPE_AP &&
6219 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6222 if (!info->attrs[NL80211_ATTR_MAC])
6225 if (!rdev->ops->probe_client)
6228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6232 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6233 NL80211_CMD_PROBE_CLIENT);
6240 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6242 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6246 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6248 genlmsg_end(msg, hdr);
6250 return genlmsg_reply(msg, info);
6259 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6263 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6266 if (rdev->ap_beacons_nlpid)
6269 rdev->ap_beacons_nlpid = info->snd_pid;
6274 #define NL80211_FLAG_NEED_WIPHY 0x01
6275 #define NL80211_FLAG_NEED_NETDEV 0x02
6276 #define NL80211_FLAG_NEED_RTNL 0x04
6277 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6278 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6279 NL80211_FLAG_CHECK_NETDEV_UP)
6281 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6282 struct genl_info *info)
6284 struct cfg80211_registered_device *rdev;
6285 struct net_device *dev;
6287 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6292 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6293 rdev = cfg80211_get_dev_from_info(info);
6297 return PTR_ERR(rdev);
6299 info->user_ptr[0] = rdev;
6300 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6301 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6308 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6309 !netif_running(dev)) {
6310 cfg80211_unlock_rdev(rdev);
6316 info->user_ptr[0] = rdev;
6317 info->user_ptr[1] = dev;
6323 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6324 struct genl_info *info)
6326 if (info->user_ptr[0])
6327 cfg80211_unlock_rdev(info->user_ptr[0]);
6328 if (info->user_ptr[1])
6329 dev_put(info->user_ptr[1]);
6330 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6334 static struct genl_ops nl80211_ops[] = {
6336 .cmd = NL80211_CMD_GET_WIPHY,
6337 .doit = nl80211_get_wiphy,
6338 .dumpit = nl80211_dump_wiphy,
6339 .policy = nl80211_policy,
6340 /* can be retrieved by unprivileged users */
6341 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6344 .cmd = NL80211_CMD_SET_WIPHY,
6345 .doit = nl80211_set_wiphy,
6346 .policy = nl80211_policy,
6347 .flags = GENL_ADMIN_PERM,
6348 .internal_flags = NL80211_FLAG_NEED_RTNL,
6351 .cmd = NL80211_CMD_GET_INTERFACE,
6352 .doit = nl80211_get_interface,
6353 .dumpit = nl80211_dump_interface,
6354 .policy = nl80211_policy,
6355 /* can be retrieved by unprivileged users */
6356 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6359 .cmd = NL80211_CMD_SET_INTERFACE,
6360 .doit = nl80211_set_interface,
6361 .policy = nl80211_policy,
6362 .flags = GENL_ADMIN_PERM,
6363 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6364 NL80211_FLAG_NEED_RTNL,
6367 .cmd = NL80211_CMD_NEW_INTERFACE,
6368 .doit = nl80211_new_interface,
6369 .policy = nl80211_policy,
6370 .flags = GENL_ADMIN_PERM,
6371 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6372 NL80211_FLAG_NEED_RTNL,
6375 .cmd = NL80211_CMD_DEL_INTERFACE,
6376 .doit = nl80211_del_interface,
6377 .policy = nl80211_policy,
6378 .flags = GENL_ADMIN_PERM,
6379 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6380 NL80211_FLAG_NEED_RTNL,
6383 .cmd = NL80211_CMD_GET_KEY,
6384 .doit = nl80211_get_key,
6385 .policy = nl80211_policy,
6386 .flags = GENL_ADMIN_PERM,
6387 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6388 NL80211_FLAG_NEED_RTNL,
6391 .cmd = NL80211_CMD_SET_KEY,
6392 .doit = nl80211_set_key,
6393 .policy = nl80211_policy,
6394 .flags = GENL_ADMIN_PERM,
6395 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6396 NL80211_FLAG_NEED_RTNL,
6399 .cmd = NL80211_CMD_NEW_KEY,
6400 .doit = nl80211_new_key,
6401 .policy = nl80211_policy,
6402 .flags = GENL_ADMIN_PERM,
6403 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6404 NL80211_FLAG_NEED_RTNL,
6407 .cmd = NL80211_CMD_DEL_KEY,
6408 .doit = nl80211_del_key,
6409 .policy = nl80211_policy,
6410 .flags = GENL_ADMIN_PERM,
6411 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6412 NL80211_FLAG_NEED_RTNL,
6415 .cmd = NL80211_CMD_SET_BEACON,
6416 .policy = nl80211_policy,
6417 .flags = GENL_ADMIN_PERM,
6418 .doit = nl80211_set_beacon,
6419 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6420 NL80211_FLAG_NEED_RTNL,
6423 .cmd = NL80211_CMD_START_AP,
6424 .policy = nl80211_policy,
6425 .flags = GENL_ADMIN_PERM,
6426 .doit = nl80211_start_ap,
6427 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6428 NL80211_FLAG_NEED_RTNL,
6431 .cmd = NL80211_CMD_STOP_AP,
6432 .policy = nl80211_policy,
6433 .flags = GENL_ADMIN_PERM,
6434 .doit = nl80211_stop_ap,
6435 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6436 NL80211_FLAG_NEED_RTNL,
6439 .cmd = NL80211_CMD_GET_STATION,
6440 .doit = nl80211_get_station,
6441 .dumpit = nl80211_dump_station,
6442 .policy = nl80211_policy,
6443 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6444 NL80211_FLAG_NEED_RTNL,
6447 .cmd = NL80211_CMD_SET_STATION,
6448 .doit = nl80211_set_station,
6449 .policy = nl80211_policy,
6450 .flags = GENL_ADMIN_PERM,
6451 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6452 NL80211_FLAG_NEED_RTNL,
6455 .cmd = NL80211_CMD_NEW_STATION,
6456 .doit = nl80211_new_station,
6457 .policy = nl80211_policy,
6458 .flags = GENL_ADMIN_PERM,
6459 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6460 NL80211_FLAG_NEED_RTNL,
6463 .cmd = NL80211_CMD_DEL_STATION,
6464 .doit = nl80211_del_station,
6465 .policy = nl80211_policy,
6466 .flags = GENL_ADMIN_PERM,
6467 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6468 NL80211_FLAG_NEED_RTNL,
6471 .cmd = NL80211_CMD_GET_MPATH,
6472 .doit = nl80211_get_mpath,
6473 .dumpit = nl80211_dump_mpath,
6474 .policy = nl80211_policy,
6475 .flags = GENL_ADMIN_PERM,
6476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6477 NL80211_FLAG_NEED_RTNL,
6480 .cmd = NL80211_CMD_SET_MPATH,
6481 .doit = nl80211_set_mpath,
6482 .policy = nl80211_policy,
6483 .flags = GENL_ADMIN_PERM,
6484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6485 NL80211_FLAG_NEED_RTNL,
6488 .cmd = NL80211_CMD_NEW_MPATH,
6489 .doit = nl80211_new_mpath,
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_DEL_MPATH,
6497 .doit = nl80211_del_mpath,
6498 .policy = nl80211_policy,
6499 .flags = GENL_ADMIN_PERM,
6500 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6501 NL80211_FLAG_NEED_RTNL,
6504 .cmd = NL80211_CMD_SET_BSS,
6505 .doit = nl80211_set_bss,
6506 .policy = nl80211_policy,
6507 .flags = GENL_ADMIN_PERM,
6508 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6509 NL80211_FLAG_NEED_RTNL,
6512 .cmd = NL80211_CMD_GET_REG,
6513 .doit = nl80211_get_reg,
6514 .policy = nl80211_policy,
6515 /* can be retrieved by unprivileged users */
6518 .cmd = NL80211_CMD_SET_REG,
6519 .doit = nl80211_set_reg,
6520 .policy = nl80211_policy,
6521 .flags = GENL_ADMIN_PERM,
6524 .cmd = NL80211_CMD_REQ_SET_REG,
6525 .doit = nl80211_req_set_reg,
6526 .policy = nl80211_policy,
6527 .flags = GENL_ADMIN_PERM,
6530 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6531 .doit = nl80211_get_mesh_config,
6532 .policy = nl80211_policy,
6533 /* can be retrieved by unprivileged users */
6534 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6535 NL80211_FLAG_NEED_RTNL,
6538 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6539 .doit = nl80211_update_mesh_config,
6540 .policy = nl80211_policy,
6541 .flags = GENL_ADMIN_PERM,
6542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6543 NL80211_FLAG_NEED_RTNL,
6546 .cmd = NL80211_CMD_TRIGGER_SCAN,
6547 .doit = nl80211_trigger_scan,
6548 .policy = nl80211_policy,
6549 .flags = GENL_ADMIN_PERM,
6550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6551 NL80211_FLAG_NEED_RTNL,
6554 .cmd = NL80211_CMD_GET_SCAN,
6555 .policy = nl80211_policy,
6556 .dumpit = nl80211_dump_scan,
6559 .cmd = NL80211_CMD_START_SCHED_SCAN,
6560 .doit = nl80211_start_sched_scan,
6561 .policy = nl80211_policy,
6562 .flags = GENL_ADMIN_PERM,
6563 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6564 NL80211_FLAG_NEED_RTNL,
6567 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6568 .doit = nl80211_stop_sched_scan,
6569 .policy = nl80211_policy,
6570 .flags = GENL_ADMIN_PERM,
6571 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6572 NL80211_FLAG_NEED_RTNL,
6575 .cmd = NL80211_CMD_AUTHENTICATE,
6576 .doit = nl80211_authenticate,
6577 .policy = nl80211_policy,
6578 .flags = GENL_ADMIN_PERM,
6579 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6580 NL80211_FLAG_NEED_RTNL,
6583 .cmd = NL80211_CMD_ASSOCIATE,
6584 .doit = nl80211_associate,
6585 .policy = nl80211_policy,
6586 .flags = GENL_ADMIN_PERM,
6587 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6588 NL80211_FLAG_NEED_RTNL,
6591 .cmd = NL80211_CMD_DEAUTHENTICATE,
6592 .doit = nl80211_deauthenticate,
6593 .policy = nl80211_policy,
6594 .flags = GENL_ADMIN_PERM,
6595 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6596 NL80211_FLAG_NEED_RTNL,
6599 .cmd = NL80211_CMD_DISASSOCIATE,
6600 .doit = nl80211_disassociate,
6601 .policy = nl80211_policy,
6602 .flags = GENL_ADMIN_PERM,
6603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6604 NL80211_FLAG_NEED_RTNL,
6607 .cmd = NL80211_CMD_JOIN_IBSS,
6608 .doit = nl80211_join_ibss,
6609 .policy = nl80211_policy,
6610 .flags = GENL_ADMIN_PERM,
6611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6612 NL80211_FLAG_NEED_RTNL,
6615 .cmd = NL80211_CMD_LEAVE_IBSS,
6616 .doit = nl80211_leave_ibss,
6617 .policy = nl80211_policy,
6618 .flags = GENL_ADMIN_PERM,
6619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6620 NL80211_FLAG_NEED_RTNL,
6622 #ifdef CONFIG_NL80211_TESTMODE
6624 .cmd = NL80211_CMD_TESTMODE,
6625 .doit = nl80211_testmode_do,
6626 .dumpit = nl80211_testmode_dump,
6627 .policy = nl80211_policy,
6628 .flags = GENL_ADMIN_PERM,
6629 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6630 NL80211_FLAG_NEED_RTNL,
6634 .cmd = NL80211_CMD_CONNECT,
6635 .doit = nl80211_connect,
6636 .policy = nl80211_policy,
6637 .flags = GENL_ADMIN_PERM,
6638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6639 NL80211_FLAG_NEED_RTNL,
6642 .cmd = NL80211_CMD_DISCONNECT,
6643 .doit = nl80211_disconnect,
6644 .policy = nl80211_policy,
6645 .flags = GENL_ADMIN_PERM,
6646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6647 NL80211_FLAG_NEED_RTNL,
6650 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6651 .doit = nl80211_wiphy_netns,
6652 .policy = nl80211_policy,
6653 .flags = GENL_ADMIN_PERM,
6654 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6655 NL80211_FLAG_NEED_RTNL,
6658 .cmd = NL80211_CMD_GET_SURVEY,
6659 .policy = nl80211_policy,
6660 .dumpit = nl80211_dump_survey,
6663 .cmd = NL80211_CMD_SET_PMKSA,
6664 .doit = nl80211_setdel_pmksa,
6665 .policy = nl80211_policy,
6666 .flags = GENL_ADMIN_PERM,
6667 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6668 NL80211_FLAG_NEED_RTNL,
6671 .cmd = NL80211_CMD_DEL_PMKSA,
6672 .doit = nl80211_setdel_pmksa,
6673 .policy = nl80211_policy,
6674 .flags = GENL_ADMIN_PERM,
6675 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6676 NL80211_FLAG_NEED_RTNL,
6679 .cmd = NL80211_CMD_FLUSH_PMKSA,
6680 .doit = nl80211_flush_pmksa,
6681 .policy = nl80211_policy,
6682 .flags = GENL_ADMIN_PERM,
6683 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6684 NL80211_FLAG_NEED_RTNL,
6687 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6688 .doit = nl80211_remain_on_channel,
6689 .policy = nl80211_policy,
6690 .flags = GENL_ADMIN_PERM,
6691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6692 NL80211_FLAG_NEED_RTNL,
6695 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6696 .doit = nl80211_cancel_remain_on_channel,
6697 .policy = nl80211_policy,
6698 .flags = GENL_ADMIN_PERM,
6699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6700 NL80211_FLAG_NEED_RTNL,
6703 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6704 .doit = nl80211_set_tx_bitrate_mask,
6705 .policy = nl80211_policy,
6706 .flags = GENL_ADMIN_PERM,
6707 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6708 NL80211_FLAG_NEED_RTNL,
6711 .cmd = NL80211_CMD_REGISTER_FRAME,
6712 .doit = nl80211_register_mgmt,
6713 .policy = nl80211_policy,
6714 .flags = GENL_ADMIN_PERM,
6715 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6716 NL80211_FLAG_NEED_RTNL,
6719 .cmd = NL80211_CMD_FRAME,
6720 .doit = nl80211_tx_mgmt,
6721 .policy = nl80211_policy,
6722 .flags = GENL_ADMIN_PERM,
6723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6724 NL80211_FLAG_NEED_RTNL,
6727 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6728 .doit = nl80211_tx_mgmt_cancel_wait,
6729 .policy = nl80211_policy,
6730 .flags = GENL_ADMIN_PERM,
6731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6732 NL80211_FLAG_NEED_RTNL,
6735 .cmd = NL80211_CMD_SET_POWER_SAVE,
6736 .doit = nl80211_set_power_save,
6737 .policy = nl80211_policy,
6738 .flags = GENL_ADMIN_PERM,
6739 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6740 NL80211_FLAG_NEED_RTNL,
6743 .cmd = NL80211_CMD_GET_POWER_SAVE,
6744 .doit = nl80211_get_power_save,
6745 .policy = nl80211_policy,
6746 /* can be retrieved by unprivileged users */
6747 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6748 NL80211_FLAG_NEED_RTNL,
6751 .cmd = NL80211_CMD_SET_CQM,
6752 .doit = nl80211_set_cqm,
6753 .policy = nl80211_policy,
6754 .flags = GENL_ADMIN_PERM,
6755 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6756 NL80211_FLAG_NEED_RTNL,
6759 .cmd = NL80211_CMD_SET_CHANNEL,
6760 .doit = nl80211_set_channel,
6761 .policy = nl80211_policy,
6762 .flags = GENL_ADMIN_PERM,
6763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6764 NL80211_FLAG_NEED_RTNL,
6767 .cmd = NL80211_CMD_SET_WDS_PEER,
6768 .doit = nl80211_set_wds_peer,
6769 .policy = nl80211_policy,
6770 .flags = GENL_ADMIN_PERM,
6771 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6772 NL80211_FLAG_NEED_RTNL,
6775 .cmd = NL80211_CMD_JOIN_MESH,
6776 .doit = nl80211_join_mesh,
6777 .policy = nl80211_policy,
6778 .flags = GENL_ADMIN_PERM,
6779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6780 NL80211_FLAG_NEED_RTNL,
6783 .cmd = NL80211_CMD_LEAVE_MESH,
6784 .doit = nl80211_leave_mesh,
6785 .policy = nl80211_policy,
6786 .flags = GENL_ADMIN_PERM,
6787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6788 NL80211_FLAG_NEED_RTNL,
6791 .cmd = NL80211_CMD_GET_WOWLAN,
6792 .doit = nl80211_get_wowlan,
6793 .policy = nl80211_policy,
6794 /* can be retrieved by unprivileged users */
6795 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6796 NL80211_FLAG_NEED_RTNL,
6799 .cmd = NL80211_CMD_SET_WOWLAN,
6800 .doit = nl80211_set_wowlan,
6801 .policy = nl80211_policy,
6802 .flags = GENL_ADMIN_PERM,
6803 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6804 NL80211_FLAG_NEED_RTNL,
6807 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6808 .doit = nl80211_set_rekey_data,
6809 .policy = nl80211_policy,
6810 .flags = GENL_ADMIN_PERM,
6811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6812 NL80211_FLAG_NEED_RTNL,
6815 .cmd = NL80211_CMD_TDLS_MGMT,
6816 .doit = nl80211_tdls_mgmt,
6817 .policy = nl80211_policy,
6818 .flags = GENL_ADMIN_PERM,
6819 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6820 NL80211_FLAG_NEED_RTNL,
6823 .cmd = NL80211_CMD_TDLS_OPER,
6824 .doit = nl80211_tdls_oper,
6825 .policy = nl80211_policy,
6826 .flags = GENL_ADMIN_PERM,
6827 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6828 NL80211_FLAG_NEED_RTNL,
6831 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6832 .doit = nl80211_register_unexpected_frame,
6833 .policy = nl80211_policy,
6834 .flags = GENL_ADMIN_PERM,
6835 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6836 NL80211_FLAG_NEED_RTNL,
6839 .cmd = NL80211_CMD_PROBE_CLIENT,
6840 .doit = nl80211_probe_client,
6841 .policy = nl80211_policy,
6842 .flags = GENL_ADMIN_PERM,
6843 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6844 NL80211_FLAG_NEED_RTNL,
6847 .cmd = NL80211_CMD_REGISTER_BEACONS,
6848 .doit = nl80211_register_beacons,
6849 .policy = nl80211_policy,
6850 .flags = GENL_ADMIN_PERM,
6851 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6852 NL80211_FLAG_NEED_RTNL,
6855 .cmd = NL80211_CMD_SET_NOACK_MAP,
6856 .doit = nl80211_set_noack_map,
6857 .policy = nl80211_policy,
6858 .flags = GENL_ADMIN_PERM,
6859 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6860 NL80211_FLAG_NEED_RTNL,
6865 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6869 /* multicast groups */
6870 static struct genl_multicast_group nl80211_config_mcgrp = {
6873 static struct genl_multicast_group nl80211_scan_mcgrp = {
6876 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6877 .name = "regulatory",
6880 /* notification functions */
6882 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6884 struct sk_buff *msg;
6886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6890 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6895 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6896 nl80211_config_mcgrp.id, GFP_KERNEL);
6899 static int nl80211_add_scan_req(struct sk_buff *msg,
6900 struct cfg80211_registered_device *rdev)
6902 struct cfg80211_scan_request *req = rdev->scan_req;
6903 struct nlattr *nest;
6906 ASSERT_RDEV_LOCK(rdev);
6911 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6913 goto nla_put_failure;
6914 for (i = 0; i < req->n_ssids; i++)
6915 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6916 nla_nest_end(msg, nest);
6918 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6920 goto nla_put_failure;
6921 for (i = 0; i < req->n_channels; i++)
6922 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6923 nla_nest_end(msg, nest);
6926 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6933 static int nl80211_send_scan_msg(struct sk_buff *msg,
6934 struct cfg80211_registered_device *rdev,
6935 struct net_device *netdev,
6936 u32 pid, u32 seq, int flags,
6941 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6945 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6946 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6948 /* ignore errors and send incomplete event anyway */
6949 nl80211_add_scan_req(msg, rdev);
6951 return genlmsg_end(msg, hdr);
6954 genlmsg_cancel(msg, hdr);
6959 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6960 struct cfg80211_registered_device *rdev,
6961 struct net_device *netdev,
6962 u32 pid, u32 seq, int flags, u32 cmd)
6966 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6970 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6971 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6973 return genlmsg_end(msg, hdr);
6976 genlmsg_cancel(msg, hdr);
6980 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6981 struct net_device *netdev)
6983 struct sk_buff *msg;
6985 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6989 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6990 NL80211_CMD_TRIGGER_SCAN) < 0) {
6995 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6996 nl80211_scan_mcgrp.id, GFP_KERNEL);
6999 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7000 struct net_device *netdev)
7002 struct sk_buff *msg;
7004 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7008 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7009 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7014 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7015 nl80211_scan_mcgrp.id, GFP_KERNEL);
7018 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7019 struct net_device *netdev)
7021 struct sk_buff *msg;
7023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7027 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7028 NL80211_CMD_SCAN_ABORTED) < 0) {
7033 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7034 nl80211_scan_mcgrp.id, GFP_KERNEL);
7037 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7038 struct net_device *netdev)
7040 struct sk_buff *msg;
7042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7046 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7047 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7052 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7053 nl80211_scan_mcgrp.id, GFP_KERNEL);
7056 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7057 struct net_device *netdev, u32 cmd)
7059 struct sk_buff *msg;
7061 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7065 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7070 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7071 nl80211_scan_mcgrp.id, GFP_KERNEL);
7075 * This can happen on global regulatory changes or device specific settings
7076 * based on custom world regulatory domains.
7078 void nl80211_send_reg_change_event(struct regulatory_request *request)
7080 struct sk_buff *msg;
7083 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7087 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7093 /* Userspace can always count this one always being set */
7094 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7096 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7097 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7098 NL80211_REGDOM_TYPE_WORLD);
7099 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7100 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7101 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7102 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7104 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7105 NL80211_REGDOM_TYPE_INTERSECTION);
7107 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7108 NL80211_REGDOM_TYPE_COUNTRY);
7109 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7112 if (wiphy_idx_valid(request->wiphy_idx))
7113 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7115 genlmsg_end(msg, hdr);
7118 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7125 genlmsg_cancel(msg, hdr);
7129 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7130 struct net_device *netdev,
7131 const u8 *buf, size_t len,
7132 enum nl80211_commands cmd, gfp_t gfp)
7134 struct sk_buff *msg;
7137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7141 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7147 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7148 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7149 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7151 genlmsg_end(msg, hdr);
7153 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7154 nl80211_mlme_mcgrp.id, gfp);
7158 genlmsg_cancel(msg, hdr);
7162 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7163 struct net_device *netdev, const u8 *buf,
7164 size_t len, gfp_t gfp)
7166 nl80211_send_mlme_event(rdev, netdev, buf, len,
7167 NL80211_CMD_AUTHENTICATE, gfp);
7170 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7171 struct net_device *netdev, const u8 *buf,
7172 size_t len, gfp_t gfp)
7174 nl80211_send_mlme_event(rdev, netdev, buf, len,
7175 NL80211_CMD_ASSOCIATE, gfp);
7178 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7179 struct net_device *netdev, const u8 *buf,
7180 size_t len, gfp_t gfp)
7182 nl80211_send_mlme_event(rdev, netdev, buf, len,
7183 NL80211_CMD_DEAUTHENTICATE, gfp);
7186 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7187 struct net_device *netdev, const u8 *buf,
7188 size_t len, gfp_t gfp)
7190 nl80211_send_mlme_event(rdev, netdev, buf, len,
7191 NL80211_CMD_DISASSOCIATE, gfp);
7194 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7195 struct net_device *netdev, const u8 *buf,
7196 size_t len, gfp_t gfp)
7198 nl80211_send_mlme_event(rdev, netdev, buf, len,
7199 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7202 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7203 struct net_device *netdev, const u8 *buf,
7204 size_t len, gfp_t gfp)
7206 nl80211_send_mlme_event(rdev, netdev, buf, len,
7207 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7210 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7211 struct net_device *netdev, int cmd,
7212 const u8 *addr, gfp_t gfp)
7214 struct sk_buff *msg;
7217 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7221 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7227 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7228 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7229 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7230 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7232 genlmsg_end(msg, hdr);
7234 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7235 nl80211_mlme_mcgrp.id, gfp);
7239 genlmsg_cancel(msg, hdr);
7243 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7244 struct net_device *netdev, const u8 *addr,
7247 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7251 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7252 struct net_device *netdev, const u8 *addr,
7255 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7259 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7260 struct net_device *netdev, const u8 *bssid,
7261 const u8 *req_ie, size_t req_ie_len,
7262 const u8 *resp_ie, size_t resp_ie_len,
7263 u16 status, gfp_t gfp)
7265 struct sk_buff *msg;
7268 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7278 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7279 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7282 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7284 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7286 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7288 genlmsg_end(msg, hdr);
7290 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7291 nl80211_mlme_mcgrp.id, gfp);
7295 genlmsg_cancel(msg, hdr);
7300 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7301 struct net_device *netdev, const u8 *bssid,
7302 const u8 *req_ie, size_t req_ie_len,
7303 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7305 struct sk_buff *msg;
7308 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7312 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7318 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7319 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7320 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7322 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7324 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7326 genlmsg_end(msg, hdr);
7328 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7329 nl80211_mlme_mcgrp.id, gfp);
7333 genlmsg_cancel(msg, hdr);
7338 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7339 struct net_device *netdev, u16 reason,
7340 const u8 *ie, size_t ie_len, bool from_ap)
7342 struct sk_buff *msg;
7345 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7355 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7356 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7357 if (from_ap && reason)
7358 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7360 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7362 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7364 genlmsg_end(msg, hdr);
7366 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7367 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7371 genlmsg_cancel(msg, hdr);
7376 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7377 struct net_device *netdev, const u8 *bssid,
7380 struct sk_buff *msg;
7383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7387 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7393 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7394 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7395 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7397 genlmsg_end(msg, hdr);
7399 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7400 nl80211_mlme_mcgrp.id, gfp);
7404 genlmsg_cancel(msg, hdr);
7408 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7409 struct net_device *netdev,
7410 const u8 *macaddr, const u8* ie, u8 ie_len,
7413 struct sk_buff *msg;
7416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7420 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7426 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7428 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7430 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7432 genlmsg_end(msg, hdr);
7434 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7435 nl80211_mlme_mcgrp.id, gfp);
7439 genlmsg_cancel(msg, hdr);
7443 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7444 struct net_device *netdev, const u8 *addr,
7445 enum nl80211_key_type key_type, int key_id,
7446 const u8 *tsc, gfp_t gfp)
7448 struct sk_buff *msg;
7451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7461 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7462 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7464 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7465 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7467 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7469 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7471 genlmsg_end(msg, hdr);
7473 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7474 nl80211_mlme_mcgrp.id, gfp);
7478 genlmsg_cancel(msg, hdr);
7482 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7483 struct ieee80211_channel *channel_before,
7484 struct ieee80211_channel *channel_after)
7486 struct sk_buff *msg;
7488 struct nlattr *nl_freq;
7490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7501 * Since we are applying the beacon hint to a wiphy we know its
7502 * wiphy_idx is valid
7504 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7507 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7509 goto nla_put_failure;
7510 if (nl80211_msg_put_channel(msg, channel_before))
7511 goto nla_put_failure;
7512 nla_nest_end(msg, nl_freq);
7515 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7517 goto nla_put_failure;
7518 if (nl80211_msg_put_channel(msg, channel_after))
7519 goto nla_put_failure;
7520 nla_nest_end(msg, nl_freq);
7522 genlmsg_end(msg, hdr);
7525 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7532 genlmsg_cancel(msg, hdr);
7536 static void nl80211_send_remain_on_chan_event(
7537 int cmd, struct cfg80211_registered_device *rdev,
7538 struct net_device *netdev, u64 cookie,
7539 struct ieee80211_channel *chan,
7540 enum nl80211_channel_type channel_type,
7541 unsigned int duration, gfp_t gfp)
7543 struct sk_buff *msg;
7546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7550 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7557 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7558 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7559 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7560 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7562 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7563 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7565 genlmsg_end(msg, hdr);
7567 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7568 nl80211_mlme_mcgrp.id, gfp);
7572 genlmsg_cancel(msg, hdr);
7576 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7577 struct net_device *netdev, u64 cookie,
7578 struct ieee80211_channel *chan,
7579 enum nl80211_channel_type channel_type,
7580 unsigned int duration, gfp_t gfp)
7582 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7583 rdev, netdev, cookie, chan,
7584 channel_type, duration, gfp);
7587 void nl80211_send_remain_on_channel_cancel(
7588 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7589 u64 cookie, struct ieee80211_channel *chan,
7590 enum nl80211_channel_type channel_type, gfp_t gfp)
7592 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7593 rdev, netdev, cookie, chan,
7594 channel_type, 0, gfp);
7597 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7598 struct net_device *dev, const u8 *mac_addr,
7599 struct station_info *sinfo, gfp_t gfp)
7601 struct sk_buff *msg;
7603 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7607 if (nl80211_send_station(msg, 0, 0, 0,
7608 rdev, dev, mac_addr, sinfo) < 0) {
7613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7614 nl80211_mlme_mcgrp.id, gfp);
7617 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7618 struct net_device *dev, const u8 *mac_addr,
7621 struct sk_buff *msg;
7624 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7628 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7634 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7635 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7637 genlmsg_end(msg, hdr);
7639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7640 nl80211_mlme_mcgrp.id, gfp);
7644 genlmsg_cancel(msg, hdr);
7648 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7649 const u8 *addr, gfp_t gfp)
7651 struct wireless_dev *wdev = dev->ieee80211_ptr;
7652 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7653 struct sk_buff *msg;
7656 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7661 msg = nlmsg_new(100, gfp);
7665 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7671 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7672 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7673 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7675 err = genlmsg_end(msg, hdr);
7681 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7685 genlmsg_cancel(msg, hdr);
7690 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7692 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7696 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7697 const u8 *addr, gfp_t gfp)
7699 return __nl80211_unexpected_frame(dev,
7700 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7704 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7705 struct net_device *netdev, u32 nlpid,
7706 int freq, int sig_dbm,
7707 const u8 *buf, size_t len, gfp_t gfp)
7709 struct sk_buff *msg;
7712 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7716 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7722 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7723 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7726 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
7727 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7729 genlmsg_end(msg, hdr);
7731 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7734 genlmsg_cancel(msg, hdr);
7739 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7740 struct net_device *netdev, u64 cookie,
7741 const u8 *buf, size_t len, bool ack,
7744 struct sk_buff *msg;
7747 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7751 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7757 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7758 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7759 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7760 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7762 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7764 genlmsg_end(msg, hdr);
7766 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7770 genlmsg_cancel(msg, hdr);
7775 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7776 struct net_device *netdev,
7777 enum nl80211_cqm_rssi_threshold_event rssi_event,
7780 struct sk_buff *msg;
7781 struct nlattr *pinfoattr;
7784 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7788 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7794 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7795 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7797 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7799 goto nla_put_failure;
7801 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7804 nla_nest_end(msg, pinfoattr);
7806 genlmsg_end(msg, hdr);
7808 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7809 nl80211_mlme_mcgrp.id, gfp);
7813 genlmsg_cancel(msg, hdr);
7817 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7818 struct net_device *netdev, const u8 *bssid,
7819 const u8 *replay_ctr, gfp_t gfp)
7821 struct sk_buff *msg;
7822 struct nlattr *rekey_attr;
7825 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7829 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7835 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7837 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7839 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7841 goto nla_put_failure;
7843 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7844 NL80211_REPLAY_CTR_LEN, replay_ctr);
7846 nla_nest_end(msg, rekey_attr);
7848 genlmsg_end(msg, hdr);
7850 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7851 nl80211_mlme_mcgrp.id, gfp);
7855 genlmsg_cancel(msg, hdr);
7859 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7860 struct net_device *netdev, int index,
7861 const u8 *bssid, bool preauth, gfp_t gfp)
7863 struct sk_buff *msg;
7864 struct nlattr *attr;
7867 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7871 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7877 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7878 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7880 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7882 goto nla_put_failure;
7884 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7885 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7887 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7889 nla_nest_end(msg, attr);
7891 genlmsg_end(msg, hdr);
7893 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7894 nl80211_mlme_mcgrp.id, gfp);
7898 genlmsg_cancel(msg, hdr);
7903 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7904 struct net_device *netdev, const u8 *peer,
7905 u32 num_packets, gfp_t gfp)
7907 struct sk_buff *msg;
7908 struct nlattr *pinfoattr;
7911 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7915 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7921 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7922 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7923 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7925 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7927 goto nla_put_failure;
7929 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7931 nla_nest_end(msg, pinfoattr);
7933 genlmsg_end(msg, hdr);
7935 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7936 nl80211_mlme_mcgrp.id, gfp);
7940 genlmsg_cancel(msg, hdr);
7944 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7945 u64 cookie, bool acked, gfp_t gfp)
7947 struct wireless_dev *wdev = dev->ieee80211_ptr;
7948 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7949 struct sk_buff *msg;
7953 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7957 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7963 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7964 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7965 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7966 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7968 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7970 err = genlmsg_end(msg, hdr);
7976 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7977 nl80211_mlme_mcgrp.id, gfp);
7981 genlmsg_cancel(msg, hdr);
7984 EXPORT_SYMBOL(cfg80211_probe_status);
7986 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7987 const u8 *frame, size_t len,
7988 int freq, int sig_dbm, gfp_t gfp)
7990 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7991 struct sk_buff *msg;
7993 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7998 msg = nlmsg_new(len + 100, gfp);
8002 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8008 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8010 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8012 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
8013 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
8015 genlmsg_end(msg, hdr);
8017 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8021 genlmsg_cancel(msg, hdr);
8024 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8026 static int nl80211_netlink_notify(struct notifier_block * nb,
8027 unsigned long state,
8030 struct netlink_notify *notify = _notify;
8031 struct cfg80211_registered_device *rdev;
8032 struct wireless_dev *wdev;
8034 if (state != NETLINK_URELEASE)
8039 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8040 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8041 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8042 if (rdev->ap_beacons_nlpid == notify->pid)
8043 rdev->ap_beacons_nlpid = 0;
8051 static struct notifier_block nl80211_netlink_notifier = {
8052 .notifier_call = nl80211_netlink_notify,
8055 /* initialisation/exit functions */
8057 int nl80211_init(void)
8061 err = genl_register_family_with_ops(&nl80211_fam,
8062 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8066 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8070 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8074 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8078 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8082 #ifdef CONFIG_NL80211_TESTMODE
8083 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8088 err = netlink_register_notifier(&nl80211_netlink_notifier);
8094 genl_unregister_family(&nl80211_fam);
8098 void nl80211_exit(void)
8100 netlink_unregister_notifier(&nl80211_netlink_notifier);
8101 genl_unregister_family(&nl80211_fam);