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 /* the netlink family */
27 static struct genl_family nl80211_fam = {
28 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
29 .name = "nl80211", /* have users key off the name instead */
30 .hdrsize = 0, /* no private header */
31 .version = 1, /* no particular meaning now */
32 .maxattr = NL80211_ATTR_MAX,
36 /* internal helper: get rdev and dev */
37 static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
38 struct cfg80211_registered_device **rdev,
39 struct net_device **dev)
41 struct nlattr **attrs = info->attrs;
44 if (!attrs[NL80211_ATTR_IFINDEX])
47 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
48 *dev = dev_get_by_index(genl_info_net(info), ifindex);
52 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
55 return PTR_ERR(*rdev);
61 /* policy for the attributes */
62 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
63 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
64 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
66 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
67 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
68 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
69 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
70 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
71 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
72 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
73 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
75 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
76 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
77 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
79 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
80 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
82 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
83 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
84 .len = WLAN_MAX_KEY_LEN },
85 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
86 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
87 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
88 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
90 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
91 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
92 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
93 .len = IEEE80211_MAX_DATA_LEN },
94 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
95 .len = IEEE80211_MAX_DATA_LEN },
96 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
97 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
98 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
99 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
100 .len = NL80211_MAX_SUPP_RATES },
101 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
102 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
103 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
104 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
105 .len = IEEE80211_MAX_MESH_ID_LEN },
106 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
108 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
109 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
111 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
112 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
113 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
114 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
115 .len = NL80211_MAX_SUPP_RATES },
117 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
119 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
120 .len = NL80211_HT_CAPABILITY_LEN },
122 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
123 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
124 .len = IEEE80211_MAX_DATA_LEN },
125 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
126 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
128 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
129 .len = IEEE80211_MAX_SSID_LEN },
130 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
131 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
132 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
133 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
134 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
135 [NL80211_ATTR_STA_FLAGS2] = {
136 .len = sizeof(struct nl80211_sta_flag_update),
138 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
139 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
140 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
141 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
142 [NL80211_ATTR_PID] = { .type = NLA_U32 },
143 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
144 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
145 .len = WLAN_PMKID_LEN },
146 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
147 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
148 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
149 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
150 .len = IEEE80211_MAX_DATA_LEN },
151 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
152 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
153 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
154 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
157 /* policy for the attributes */
158 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
159 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
160 [NL80211_KEY_IDX] = { .type = NLA_U8 },
161 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
162 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
163 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
164 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
167 /* ifidx get helper */
168 static int nl80211_get_ifidx(struct netlink_callback *cb)
172 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
173 nl80211_fam.attrbuf, nl80211_fam.maxattr,
178 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
181 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
188 static bool is_valid_ie_attr(const struct nlattr *attr)
196 pos = nla_data(attr);
217 /* message building helper */
218 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
221 /* since there is no private header just add the generic one */
222 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
225 static int nl80211_msg_put_channel(struct sk_buff *msg,
226 struct ieee80211_channel *chan)
228 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
231 if (chan->flags & IEEE80211_CHAN_DISABLED)
232 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
233 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
234 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
235 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
236 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
237 if (chan->flags & IEEE80211_CHAN_RADAR)
238 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
240 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
241 DBM_TO_MBM(chan->max_power));
249 /* netlink command implementations */
257 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
259 struct nlattr *tb[NL80211_KEY_MAX + 1];
260 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
265 k->def = !!tb[NL80211_KEY_DEFAULT];
266 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
268 if (tb[NL80211_KEY_IDX])
269 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
271 if (tb[NL80211_KEY_DATA]) {
272 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
273 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
276 if (tb[NL80211_KEY_SEQ]) {
277 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
278 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
281 if (tb[NL80211_KEY_CIPHER])
282 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
287 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
289 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
290 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
291 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
294 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
295 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
296 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
299 if (info->attrs[NL80211_ATTR_KEY_IDX])
300 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
302 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
303 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
305 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
306 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
311 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
315 memset(k, 0, sizeof(*k));
318 if (info->attrs[NL80211_ATTR_KEY])
319 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
321 err = nl80211_parse_key_old(info, k);
326 if (k->def && k->defmgmt)
331 if (k->idx < 4 || k->idx > 5)
334 if (k->idx < 0 || k->idx > 3)
337 if (k->idx < 0 || k->idx > 5)
345 static struct cfg80211_cached_keys *
346 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
349 struct key_parse parse;
351 struct cfg80211_cached_keys *result;
352 int rem, err, def = 0;
354 result = kzalloc(sizeof(*result), GFP_KERNEL);
356 return ERR_PTR(-ENOMEM);
359 result->defmgmt = -1;
361 nla_for_each_nested(key, keys, rem) {
362 memset(&parse, 0, sizeof(parse));
365 err = nl80211_parse_key_new(key, &parse);
371 if (parse.idx < 0 || parse.idx > 4)
377 result->def = parse.idx;
378 } else if (parse.defmgmt)
380 err = cfg80211_validate_key_settings(rdev, &parse.p,
384 result->params[parse.idx].cipher = parse.p.cipher;
385 result->params[parse.idx].key_len = parse.p.key_len;
386 result->params[parse.idx].key = result->data[parse.idx];
387 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
396 static int nl80211_key_allowed(struct wireless_dev *wdev)
398 ASSERT_WDEV_LOCK(wdev);
400 if (!netif_running(wdev->netdev))
403 switch (wdev->iftype) {
404 case NL80211_IFTYPE_AP:
405 case NL80211_IFTYPE_AP_VLAN:
407 case NL80211_IFTYPE_ADHOC:
408 if (!wdev->current_bss)
411 case NL80211_IFTYPE_STATION:
412 if (wdev->sme_state != CFG80211_SME_CONNECTED)
422 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
423 struct cfg80211_registered_device *dev)
426 struct nlattr *nl_bands, *nl_band;
427 struct nlattr *nl_freqs, *nl_freq;
428 struct nlattr *nl_rates, *nl_rate;
429 struct nlattr *nl_modes;
430 struct nlattr *nl_cmds;
431 enum ieee80211_band band;
432 struct ieee80211_channel *chan;
433 struct ieee80211_rate *rate;
435 u16 ifmodes = dev->wiphy.interface_modes;
437 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
441 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
442 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
444 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
445 cfg80211_rdev_list_generation);
447 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
448 dev->wiphy.retry_short);
449 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
450 dev->wiphy.retry_long);
451 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
452 dev->wiphy.frag_threshold);
453 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
454 dev->wiphy.rts_threshold);
455 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
456 dev->wiphy.coverage_class);
458 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
459 dev->wiphy.max_scan_ssids);
460 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
461 dev->wiphy.max_scan_ie_len);
463 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
464 sizeof(u32) * dev->wiphy.n_cipher_suites,
465 dev->wiphy.cipher_suites);
467 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
468 dev->wiphy.max_num_pmkids);
470 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
472 goto nla_put_failure;
477 NLA_PUT_FLAG(msg, i);
482 nla_nest_end(msg, nl_modes);
484 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
486 goto nla_put_failure;
488 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
489 if (!dev->wiphy.bands[band])
492 nl_band = nla_nest_start(msg, band);
494 goto nla_put_failure;
497 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
498 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
499 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
500 &dev->wiphy.bands[band]->ht_cap.mcs);
501 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
502 dev->wiphy.bands[band]->ht_cap.cap);
503 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
504 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
505 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
506 dev->wiphy.bands[band]->ht_cap.ampdu_density);
509 /* add frequencies */
510 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
512 goto nla_put_failure;
514 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
515 nl_freq = nla_nest_start(msg, i);
517 goto nla_put_failure;
519 chan = &dev->wiphy.bands[band]->channels[i];
521 if (nl80211_msg_put_channel(msg, chan))
522 goto nla_put_failure;
524 nla_nest_end(msg, nl_freq);
527 nla_nest_end(msg, nl_freqs);
530 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
532 goto nla_put_failure;
534 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
535 nl_rate = nla_nest_start(msg, i);
537 goto nla_put_failure;
539 rate = &dev->wiphy.bands[band]->bitrates[i];
540 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
542 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
544 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
546 nla_nest_end(msg, nl_rate);
549 nla_nest_end(msg, nl_rates);
551 nla_nest_end(msg, nl_band);
553 nla_nest_end(msg, nl_bands);
555 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
557 goto nla_put_failure;
562 if (dev->ops->op) { \
564 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
568 CMD(add_virtual_intf, NEW_INTERFACE);
569 CMD(change_virtual_intf, SET_INTERFACE);
570 CMD(add_key, NEW_KEY);
571 CMD(add_beacon, NEW_BEACON);
572 CMD(add_station, NEW_STATION);
573 CMD(add_mpath, NEW_MPATH);
574 CMD(set_mesh_params, SET_MESH_PARAMS);
575 CMD(change_bss, SET_BSS);
576 CMD(auth, AUTHENTICATE);
577 CMD(assoc, ASSOCIATE);
578 CMD(deauth, DEAUTHENTICATE);
579 CMD(disassoc, DISASSOCIATE);
580 CMD(join_ibss, JOIN_IBSS);
581 CMD(set_pmksa, SET_PMKSA);
582 CMD(del_pmksa, DEL_PMKSA);
583 CMD(flush_pmksa, FLUSH_PMKSA);
584 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
585 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
587 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
589 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
594 if (dev->ops->connect || dev->ops->auth) {
596 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
599 if (dev->ops->disconnect || dev->ops->deauth) {
601 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
604 nla_nest_end(msg, nl_cmds);
606 return genlmsg_end(msg, hdr);
609 genlmsg_cancel(msg, hdr);
613 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
616 int start = cb->args[0];
617 struct cfg80211_registered_device *dev;
619 mutex_lock(&cfg80211_mutex);
620 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
621 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
625 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
626 cb->nlh->nlmsg_seq, NLM_F_MULTI,
632 mutex_unlock(&cfg80211_mutex);
639 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
642 struct cfg80211_registered_device *dev;
644 dev = cfg80211_get_dev_from_info(info);
648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
652 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
655 cfg80211_unlock_rdev(dev);
657 return genlmsg_reply(msg, info);
662 cfg80211_unlock_rdev(dev);
666 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
667 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
668 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
669 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
670 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
671 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
674 static int parse_txq_params(struct nlattr *tb[],
675 struct ieee80211_txq_params *txq_params)
677 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
678 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
679 !tb[NL80211_TXQ_ATTR_AIFS])
682 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
683 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
684 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
685 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
686 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
691 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
693 struct cfg80211_registered_device *rdev;
694 int result = 0, rem_txq_params = 0;
695 struct nlattr *nl_txq_params;
697 u8 retry_short = 0, retry_long = 0;
698 u32 frag_threshold = 0, rts_threshold = 0;
699 u8 coverage_class = 0;
703 mutex_lock(&cfg80211_mutex);
705 rdev = __cfg80211_rdev_from_info(info);
707 mutex_unlock(&cfg80211_mutex);
708 result = PTR_ERR(rdev);
712 mutex_lock(&rdev->mtx);
714 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
715 result = cfg80211_dev_rename(
716 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
718 mutex_unlock(&cfg80211_mutex);
723 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
724 struct ieee80211_txq_params txq_params;
725 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
727 if (!rdev->ops->set_txq_params) {
728 result = -EOPNOTSUPP;
732 nla_for_each_nested(nl_txq_params,
733 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
735 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
736 nla_data(nl_txq_params),
737 nla_len(nl_txq_params),
739 result = parse_txq_params(tb, &txq_params);
743 result = rdev->ops->set_txq_params(&rdev->wiphy,
750 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
751 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
756 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
757 channel_type = nla_get_u32(info->attrs[
758 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
759 if (channel_type != NL80211_CHAN_NO_HT &&
760 channel_type != NL80211_CHAN_HT20 &&
761 channel_type != NL80211_CHAN_HT40PLUS &&
762 channel_type != NL80211_CHAN_HT40MINUS)
766 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
768 mutex_lock(&rdev->devlist_mtx);
769 result = rdev_set_freq(rdev, NULL, freq, channel_type);
770 mutex_unlock(&rdev->devlist_mtx);
777 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
778 retry_short = nla_get_u8(
779 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
780 if (retry_short == 0) {
784 changed |= WIPHY_PARAM_RETRY_SHORT;
787 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
788 retry_long = nla_get_u8(
789 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
790 if (retry_long == 0) {
794 changed |= WIPHY_PARAM_RETRY_LONG;
797 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
798 frag_threshold = nla_get_u32(
799 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
800 if (frag_threshold < 256) {
804 if (frag_threshold != (u32) -1) {
806 * Fragments (apart from the last one) are required to
807 * have even length. Make the fragmentation code
808 * simpler by stripping LSB should someone try to use
809 * odd threshold value.
811 frag_threshold &= ~0x1;
813 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
816 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
817 rts_threshold = nla_get_u32(
818 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
819 changed |= WIPHY_PARAM_RTS_THRESHOLD;
822 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
823 coverage_class = nla_get_u8(
824 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
825 changed |= WIPHY_PARAM_COVERAGE_CLASS;
829 u8 old_retry_short, old_retry_long;
830 u32 old_frag_threshold, old_rts_threshold;
831 u8 old_coverage_class;
833 if (!rdev->ops->set_wiphy_params) {
834 result = -EOPNOTSUPP;
838 old_retry_short = rdev->wiphy.retry_short;
839 old_retry_long = rdev->wiphy.retry_long;
840 old_frag_threshold = rdev->wiphy.frag_threshold;
841 old_rts_threshold = rdev->wiphy.rts_threshold;
842 old_coverage_class = rdev->wiphy.coverage_class;
844 if (changed & WIPHY_PARAM_RETRY_SHORT)
845 rdev->wiphy.retry_short = retry_short;
846 if (changed & WIPHY_PARAM_RETRY_LONG)
847 rdev->wiphy.retry_long = retry_long;
848 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
849 rdev->wiphy.frag_threshold = frag_threshold;
850 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
851 rdev->wiphy.rts_threshold = rts_threshold;
852 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
853 rdev->wiphy.coverage_class = coverage_class;
855 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
857 rdev->wiphy.retry_short = old_retry_short;
858 rdev->wiphy.retry_long = old_retry_long;
859 rdev->wiphy.frag_threshold = old_frag_threshold;
860 rdev->wiphy.rts_threshold = old_rts_threshold;
861 rdev->wiphy.coverage_class = old_coverage_class;
866 mutex_unlock(&rdev->mtx);
873 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
874 struct cfg80211_registered_device *rdev,
875 struct net_device *dev)
879 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
883 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
884 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
885 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
886 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
888 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
889 rdev->devlist_generation ^
890 (cfg80211_rdev_list_generation << 2));
892 return genlmsg_end(msg, hdr);
895 genlmsg_cancel(msg, hdr);
899 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
903 int wp_start = cb->args[0];
904 int if_start = cb->args[1];
905 struct cfg80211_registered_device *rdev;
906 struct wireless_dev *wdev;
908 mutex_lock(&cfg80211_mutex);
909 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
910 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
912 if (wp_idx < wp_start) {
918 mutex_lock(&rdev->devlist_mtx);
919 list_for_each_entry(wdev, &rdev->netdev_list, list) {
920 if (if_idx < if_start) {
924 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
925 cb->nlh->nlmsg_seq, NLM_F_MULTI,
926 rdev, wdev->netdev) < 0) {
927 mutex_unlock(&rdev->devlist_mtx);
932 mutex_unlock(&rdev->devlist_mtx);
937 mutex_unlock(&cfg80211_mutex);
939 cb->args[0] = wp_idx;
940 cb->args[1] = if_idx;
945 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
948 struct cfg80211_registered_device *dev;
949 struct net_device *netdev;
952 err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
956 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
960 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
965 cfg80211_unlock_rdev(dev);
967 return genlmsg_reply(msg, info);
973 cfg80211_unlock_rdev(dev);
977 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
978 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
979 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
980 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
981 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
982 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
985 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
987 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
995 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
996 nla, mntr_flags_policy))
999 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1001 *mntrflags |= (1<<flag);
1006 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1007 struct net_device *netdev, u8 use_4addr,
1008 enum nl80211_iftype iftype)
1011 if (netdev && netdev->br_port)
1017 case NL80211_IFTYPE_AP_VLAN:
1018 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1021 case NL80211_IFTYPE_STATION:
1022 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1032 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1034 struct cfg80211_registered_device *rdev;
1035 struct vif_params params;
1037 enum nl80211_iftype otype, ntype;
1038 struct net_device *dev;
1039 u32 _flags, *flags = NULL;
1040 bool change = false;
1042 memset(¶ms, 0, sizeof(params));
1046 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1050 otype = ntype = dev->ieee80211_ptr->iftype;
1052 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1053 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1056 if (ntype > NL80211_IFTYPE_MAX) {
1062 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1063 if (ntype != NL80211_IFTYPE_MESH_POINT) {
1067 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1068 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1072 if (info->attrs[NL80211_ATTR_4ADDR]) {
1073 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1075 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1079 params.use_4addr = -1;
1082 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1083 if (ntype != NL80211_IFTYPE_MONITOR) {
1087 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1097 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1101 if (!err && params.use_4addr != -1)
1102 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1106 cfg80211_unlock_rdev(rdev);
1112 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1114 struct cfg80211_registered_device *rdev;
1115 struct vif_params params;
1117 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1120 memset(¶ms, 0, sizeof(params));
1122 if (!info->attrs[NL80211_ATTR_IFNAME])
1125 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1126 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1127 if (type > NL80211_IFTYPE_MAX)
1133 rdev = cfg80211_get_dev_from_info(info);
1135 err = PTR_ERR(rdev);
1139 if (!rdev->ops->add_virtual_intf ||
1140 !(rdev->wiphy.interface_modes & (1 << type))) {
1145 if (type == NL80211_IFTYPE_MESH_POINT &&
1146 info->attrs[NL80211_ATTR_MESH_ID]) {
1147 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1148 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1151 if (info->attrs[NL80211_ATTR_4ADDR]) {
1152 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1153 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1158 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1159 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1161 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
1162 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1163 type, err ? NULL : &flags, ¶ms);
1166 cfg80211_unlock_rdev(rdev);
1172 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1174 struct cfg80211_registered_device *rdev;
1176 struct net_device *dev;
1180 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1184 if (!rdev->ops->del_virtual_intf) {
1189 err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1192 cfg80211_unlock_rdev(rdev);
1199 struct get_key_cookie {
1200 struct sk_buff *msg;
1205 static void get_key_callback(void *c, struct key_params *params)
1208 struct get_key_cookie *cookie = c;
1211 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1212 params->key_len, params->key);
1215 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1216 params->seq_len, params->seq);
1219 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1222 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1224 goto nla_put_failure;
1227 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1228 params->key_len, params->key);
1231 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1232 params->seq_len, params->seq);
1235 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1238 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1240 nla_nest_end(cookie->msg, key);
1247 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1249 struct cfg80211_registered_device *rdev;
1251 struct net_device *dev;
1253 u8 *mac_addr = NULL;
1254 struct get_key_cookie cookie = {
1258 struct sk_buff *msg;
1260 if (info->attrs[NL80211_ATTR_KEY_IDX])
1261 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1266 if (info->attrs[NL80211_ATTR_MAC])
1267 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1271 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1275 if (!rdev->ops->get_key) {
1280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1286 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1287 NL80211_CMD_NEW_KEY);
1295 cookie.idx = key_idx;
1297 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1298 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1300 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1302 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
1303 &cookie, get_key_callback);
1309 goto nla_put_failure;
1311 genlmsg_end(msg, hdr);
1312 err = genlmsg_reply(msg, info);
1320 cfg80211_unlock_rdev(rdev);
1328 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1330 struct cfg80211_registered_device *rdev;
1331 struct key_parse key;
1333 struct net_device *dev;
1334 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1337 err = nl80211_parse_key(info, &key);
1344 /* only support setting default key */
1345 if (!key.def && !key.defmgmt)
1350 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1355 func = rdev->ops->set_default_key;
1357 func = rdev->ops->set_default_mgmt_key;
1364 wdev_lock(dev->ieee80211_ptr);
1365 err = nl80211_key_allowed(dev->ieee80211_ptr);
1367 err = func(&rdev->wiphy, dev, key.idx);
1369 #ifdef CONFIG_CFG80211_WEXT
1371 if (func == rdev->ops->set_default_key)
1372 dev->ieee80211_ptr->wext.default_key = key.idx;
1374 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1377 wdev_unlock(dev->ieee80211_ptr);
1380 cfg80211_unlock_rdev(rdev);
1389 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1391 struct cfg80211_registered_device *rdev;
1393 struct net_device *dev;
1394 struct key_parse key;
1395 u8 *mac_addr = NULL;
1397 err = nl80211_parse_key(info, &key);
1404 if (info->attrs[NL80211_ATTR_MAC])
1405 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1409 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1413 if (!rdev->ops->add_key) {
1418 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
1423 wdev_lock(dev->ieee80211_ptr);
1424 err = nl80211_key_allowed(dev->ieee80211_ptr);
1426 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1428 wdev_unlock(dev->ieee80211_ptr);
1431 cfg80211_unlock_rdev(rdev);
1439 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1441 struct cfg80211_registered_device *rdev;
1443 struct net_device *dev;
1444 u8 *mac_addr = NULL;
1445 struct key_parse key;
1447 err = nl80211_parse_key(info, &key);
1451 if (info->attrs[NL80211_ATTR_MAC])
1452 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1456 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1460 if (!rdev->ops->del_key) {
1465 wdev_lock(dev->ieee80211_ptr);
1466 err = nl80211_key_allowed(dev->ieee80211_ptr);
1468 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
1470 #ifdef CONFIG_CFG80211_WEXT
1472 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1473 dev->ieee80211_ptr->wext.default_key = -1;
1474 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1475 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1478 wdev_unlock(dev->ieee80211_ptr);
1481 cfg80211_unlock_rdev(rdev);
1490 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1492 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1493 struct beacon_parameters *info);
1494 struct cfg80211_registered_device *rdev;
1496 struct net_device *dev;
1497 struct beacon_parameters params;
1500 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1505 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1509 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1514 switch (info->genlhdr->cmd) {
1515 case NL80211_CMD_NEW_BEACON:
1516 /* these are required for NEW_BEACON */
1517 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1518 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1519 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1524 call = rdev->ops->add_beacon;
1526 case NL80211_CMD_SET_BEACON:
1527 call = rdev->ops->set_beacon;
1540 memset(¶ms, 0, sizeof(params));
1542 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1544 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1548 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1549 params.dtim_period =
1550 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1554 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1555 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1557 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1561 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1562 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1564 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1573 err = call(&rdev->wiphy, dev, ¶ms);
1576 cfg80211_unlock_rdev(rdev);
1584 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1586 struct cfg80211_registered_device *rdev;
1588 struct net_device *dev;
1592 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1596 if (!rdev->ops->del_beacon) {
1601 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1605 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
1608 cfg80211_unlock_rdev(rdev);
1616 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1617 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1618 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1619 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1620 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
1623 static int parse_station_flags(struct genl_info *info,
1624 struct station_parameters *params)
1626 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1631 * Try parsing the new attribute first so userspace
1632 * can specify both for older kernels.
1634 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1636 struct nl80211_sta_flag_update *sta_flags;
1638 sta_flags = nla_data(nla);
1639 params->sta_flags_mask = sta_flags->mask;
1640 params->sta_flags_set = sta_flags->set;
1641 if ((params->sta_flags_mask |
1642 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1647 /* if present, parse the old attribute */
1649 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
1653 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1654 nla, sta_flags_policy))
1657 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1658 params->sta_flags_mask &= ~1;
1660 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1662 params->sta_flags_set |= (1<<flag);
1667 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1668 int flags, struct net_device *dev,
1669 const u8 *mac_addr, struct station_info *sinfo)
1672 struct nlattr *sinfoattr, *txrate;
1675 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1679 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1680 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1682 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1684 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1686 goto nla_put_failure;
1687 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1688 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1689 sinfo->inactive_time);
1690 if (sinfo->filled & STATION_INFO_RX_BYTES)
1691 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1693 if (sinfo->filled & STATION_INFO_TX_BYTES)
1694 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1696 if (sinfo->filled & STATION_INFO_LLID)
1697 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1699 if (sinfo->filled & STATION_INFO_PLID)
1700 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1702 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1703 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1704 sinfo->plink_state);
1705 if (sinfo->filled & STATION_INFO_SIGNAL)
1706 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1708 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1709 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1711 goto nla_put_failure;
1713 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1714 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
1716 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1718 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1719 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1721 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1722 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1723 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1724 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1726 nla_nest_end(msg, txrate);
1728 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1729 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1731 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1732 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1734 nla_nest_end(msg, sinfoattr);
1736 return genlmsg_end(msg, hdr);
1739 genlmsg_cancel(msg, hdr);
1743 static int nl80211_dump_station(struct sk_buff *skb,
1744 struct netlink_callback *cb)
1746 struct station_info sinfo;
1747 struct cfg80211_registered_device *dev;
1748 struct net_device *netdev;
1749 u8 mac_addr[ETH_ALEN];
1750 int ifidx = cb->args[0];
1751 int sta_idx = cb->args[1];
1755 ifidx = nl80211_get_ifidx(cb);
1761 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1767 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
1773 if (!dev->ops->dump_station) {
1779 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1786 if (nl80211_send_station(skb,
1787 NETLINK_CB(cb->skb).pid,
1788 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1798 cb->args[1] = sta_idx;
1801 cfg80211_unlock_rdev(dev);
1808 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1810 struct cfg80211_registered_device *rdev;
1812 struct net_device *dev;
1813 struct station_info sinfo;
1814 struct sk_buff *msg;
1815 u8 *mac_addr = NULL;
1817 memset(&sinfo, 0, sizeof(sinfo));
1819 if (!info->attrs[NL80211_ATTR_MAC])
1822 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1826 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1830 if (!rdev->ops->get_station) {
1835 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
1839 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1843 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1844 dev, mac_addr, &sinfo) < 0)
1847 err = genlmsg_reply(msg, info);
1853 cfg80211_unlock_rdev(rdev);
1862 * Get vlan interface making sure it is running and on the right wiphy.
1864 static int get_vlan(struct genl_info *info,
1865 struct cfg80211_registered_device *rdev,
1866 struct net_device **vlan)
1868 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
1872 *vlan = dev_get_by_index(genl_info_net(info),
1873 nla_get_u32(vlanattr));
1876 if (!(*vlan)->ieee80211_ptr)
1878 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1880 if (!netif_running(*vlan))
1886 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1888 struct cfg80211_registered_device *rdev;
1890 struct net_device *dev;
1891 struct station_parameters params;
1892 u8 *mac_addr = NULL;
1894 memset(¶ms, 0, sizeof(params));
1896 params.listen_interval = -1;
1898 if (info->attrs[NL80211_ATTR_STA_AID])
1901 if (!info->attrs[NL80211_ATTR_MAC])
1904 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1906 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1907 params.supported_rates =
1908 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1909 params.supported_rates_len =
1910 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1913 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1914 params.listen_interval =
1915 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1917 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1919 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1921 if (parse_station_flags(info, ¶ms))
1924 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1925 params.plink_action =
1926 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1930 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1934 err = get_vlan(info, rdev, ¶ms.vlan);
1938 /* validate settings */
1941 switch (dev->ieee80211_ptr->iftype) {
1942 case NL80211_IFTYPE_AP:
1943 case NL80211_IFTYPE_AP_VLAN:
1944 /* disallow mesh-specific things */
1945 if (params.plink_action)
1948 case NL80211_IFTYPE_STATION:
1949 /* disallow everything but AUTHORIZED flag */
1950 if (params.plink_action)
1954 if (params.supported_rates)
1958 if (params.listen_interval >= 0)
1960 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
1963 case NL80211_IFTYPE_MESH_POINT:
1964 /* disallow things mesh doesn't support */
1969 if (params.listen_interval >= 0)
1971 if (params.supported_rates)
1973 if (params.sta_flags_mask)
1983 if (!rdev->ops->change_station) {
1988 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
1992 dev_put(params.vlan);
1993 cfg80211_unlock_rdev(rdev);
2001 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2003 struct cfg80211_registered_device *rdev;
2005 struct net_device *dev;
2006 struct station_parameters params;
2007 u8 *mac_addr = NULL;
2009 memset(¶ms, 0, sizeof(params));
2011 if (!info->attrs[NL80211_ATTR_MAC])
2014 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2017 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2020 if (!info->attrs[NL80211_ATTR_STA_AID])
2023 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2024 params.supported_rates =
2025 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2026 params.supported_rates_len =
2027 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2028 params.listen_interval =
2029 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2031 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2032 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2035 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2037 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2039 if (parse_station_flags(info, ¶ms))
2044 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2048 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
2054 err = get_vlan(info, rdev, ¶ms.vlan);
2058 /* validate settings */
2061 if (!rdev->ops->add_station) {
2066 if (!netif_running(dev)) {
2071 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2075 dev_put(params.vlan);
2076 cfg80211_unlock_rdev(rdev);
2084 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2086 struct cfg80211_registered_device *rdev;
2088 struct net_device *dev;
2089 u8 *mac_addr = NULL;
2091 if (info->attrs[NL80211_ATTR_MAC])
2092 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2096 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2100 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2101 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2107 if (!rdev->ops->del_station) {
2112 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2115 cfg80211_unlock_rdev(rdev);
2123 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2124 int flags, struct net_device *dev,
2125 u8 *dst, u8 *next_hop,
2126 struct mpath_info *pinfo)
2129 struct nlattr *pinfoattr;
2131 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2135 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2136 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2137 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2139 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2141 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2143 goto nla_put_failure;
2144 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2145 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2147 if (pinfo->filled & MPATH_INFO_SN)
2148 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2150 if (pinfo->filled & MPATH_INFO_METRIC)
2151 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2153 if (pinfo->filled & MPATH_INFO_EXPTIME)
2154 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2156 if (pinfo->filled & MPATH_INFO_FLAGS)
2157 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2159 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2160 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2161 pinfo->discovery_timeout);
2162 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2163 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2164 pinfo->discovery_retries);
2166 nla_nest_end(msg, pinfoattr);
2168 return genlmsg_end(msg, hdr);
2171 genlmsg_cancel(msg, hdr);
2175 static int nl80211_dump_mpath(struct sk_buff *skb,
2176 struct netlink_callback *cb)
2178 struct mpath_info pinfo;
2179 struct cfg80211_registered_device *dev;
2180 struct net_device *netdev;
2182 u8 next_hop[ETH_ALEN];
2183 int ifidx = cb->args[0];
2184 int path_idx = cb->args[1];
2188 ifidx = nl80211_get_ifidx(cb);
2194 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
2200 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
2206 if (!dev->ops->dump_mpath) {
2211 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2217 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2218 dst, next_hop, &pinfo);
2224 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2225 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2226 netdev, dst, next_hop,
2235 cb->args[1] = path_idx;
2238 cfg80211_unlock_rdev(dev);
2245 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2247 struct cfg80211_registered_device *rdev;
2249 struct net_device *dev;
2250 struct mpath_info pinfo;
2251 struct sk_buff *msg;
2253 u8 next_hop[ETH_ALEN];
2255 memset(&pinfo, 0, sizeof(pinfo));
2257 if (!info->attrs[NL80211_ATTR_MAC])
2260 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2264 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2268 if (!rdev->ops->get_mpath) {
2273 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2278 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2282 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2286 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2287 dev, dst, next_hop, &pinfo) < 0)
2290 err = genlmsg_reply(msg, info);
2296 cfg80211_unlock_rdev(rdev);
2304 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2306 struct cfg80211_registered_device *rdev;
2308 struct net_device *dev;
2310 u8 *next_hop = NULL;
2312 if (!info->attrs[NL80211_ATTR_MAC])
2315 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2318 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2319 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2323 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2327 if (!rdev->ops->change_mpath) {
2332 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2337 if (!netif_running(dev)) {
2342 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2345 cfg80211_unlock_rdev(rdev);
2352 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2354 struct cfg80211_registered_device *rdev;
2356 struct net_device *dev;
2358 u8 *next_hop = NULL;
2360 if (!info->attrs[NL80211_ATTR_MAC])
2363 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2366 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2367 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2371 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2375 if (!rdev->ops->add_mpath) {
2380 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2385 if (!netif_running(dev)) {
2390 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2393 cfg80211_unlock_rdev(rdev);
2401 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2403 struct cfg80211_registered_device *rdev;
2405 struct net_device *dev;
2408 if (info->attrs[NL80211_ATTR_MAC])
2409 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2413 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2417 if (!rdev->ops->del_mpath) {
2422 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2425 cfg80211_unlock_rdev(rdev);
2433 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2435 struct cfg80211_registered_device *rdev;
2437 struct net_device *dev;
2438 struct bss_parameters params;
2440 memset(¶ms, 0, sizeof(params));
2441 /* default to not changing parameters */
2442 params.use_cts_prot = -1;
2443 params.use_short_preamble = -1;
2444 params.use_short_slot_time = -1;
2446 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2447 params.use_cts_prot =
2448 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2449 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2450 params.use_short_preamble =
2451 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2452 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2453 params.use_short_slot_time =
2454 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2455 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2456 params.basic_rates =
2457 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2458 params.basic_rates_len =
2459 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2464 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2468 if (!rdev->ops->change_bss) {
2473 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2478 err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2481 cfg80211_unlock_rdev(rdev);
2489 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2490 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2491 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2492 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2493 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2494 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2495 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2498 static int parse_reg_rule(struct nlattr *tb[],
2499 struct ieee80211_reg_rule *reg_rule)
2501 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2502 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2504 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2506 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2508 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2510 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2512 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2515 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2517 freq_range->start_freq_khz =
2518 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2519 freq_range->end_freq_khz =
2520 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2521 freq_range->max_bandwidth_khz =
2522 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2524 power_rule->max_eirp =
2525 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2527 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2528 power_rule->max_antenna_gain =
2529 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2534 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2540 * You should only get this when cfg80211 hasn't yet initialized
2541 * completely when built-in to the kernel right between the time
2542 * window between nl80211_init() and regulatory_init(), if that is
2545 mutex_lock(&cfg80211_mutex);
2546 if (unlikely(!cfg80211_regdomain)) {
2547 mutex_unlock(&cfg80211_mutex);
2548 return -EINPROGRESS;
2550 mutex_unlock(&cfg80211_mutex);
2552 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2555 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2557 r = regulatory_hint_user(data);
2562 static int nl80211_get_mesh_params(struct sk_buff *skb,
2563 struct genl_info *info)
2565 struct cfg80211_registered_device *rdev;
2566 struct mesh_config cur_params;
2568 struct net_device *dev;
2570 struct nlattr *pinfoattr;
2571 struct sk_buff *msg;
2575 /* Look up our device */
2576 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2580 if (!rdev->ops->get_mesh_params) {
2585 /* Get the mesh params */
2586 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
2590 /* Draw up a netlink message to send back */
2591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2596 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2597 NL80211_CMD_GET_MESH_PARAMS);
2599 goto nla_put_failure;
2600 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2602 goto nla_put_failure;
2603 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2604 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2605 cur_params.dot11MeshRetryTimeout);
2606 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2607 cur_params.dot11MeshConfirmTimeout);
2608 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2609 cur_params.dot11MeshHoldingTimeout);
2610 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2611 cur_params.dot11MeshMaxPeerLinks);
2612 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2613 cur_params.dot11MeshMaxRetries);
2614 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2615 cur_params.dot11MeshTTL);
2616 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2617 cur_params.auto_open_plinks);
2618 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2619 cur_params.dot11MeshHWMPmaxPREQretries);
2620 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2621 cur_params.path_refresh_time);
2622 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2623 cur_params.min_discovery_timeout);
2624 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2625 cur_params.dot11MeshHWMPactivePathTimeout);
2626 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2627 cur_params.dot11MeshHWMPpreqMinInterval);
2628 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2629 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2630 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2631 cur_params.dot11MeshHWMPRootMode);
2632 nla_nest_end(msg, pinfoattr);
2633 genlmsg_end(msg, hdr);
2634 err = genlmsg_reply(msg, info);
2638 genlmsg_cancel(msg, hdr);
2642 cfg80211_unlock_rdev(rdev);
2650 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2652 if (table[attr_num]) {\
2653 cfg.param = nla_fn(table[attr_num]); \
2654 mask |= (1 << (attr_num - 1)); \
2658 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
2659 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2660 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2661 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2662 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2663 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2664 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2665 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2667 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2668 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2669 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2670 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2671 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2672 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2675 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2679 struct cfg80211_registered_device *rdev;
2680 struct net_device *dev;
2681 struct mesh_config cfg;
2682 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2683 struct nlattr *parent_attr;
2685 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2688 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2689 parent_attr, nl80211_meshconf_params_policy))
2694 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2698 if (!rdev->ops->set_mesh_params) {
2703 /* This makes sure that there aren't more than 32 mesh config
2704 * parameters (otherwise our bitfield scheme would not work.) */
2705 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2707 /* Fill in the params struct */
2709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2710 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2712 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2714 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2716 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2718 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2720 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2722 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2724 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2727 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2729 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2732 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2735 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2738 dot11MeshHWMPnetDiameterTraversalTime,
2739 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2742 dot11MeshHWMPRootMode, mask,
2743 NL80211_MESHCONF_HWMP_ROOTMODE,
2747 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
2751 cfg80211_unlock_rdev(rdev);
2759 #undef FILL_IN_MESH_PARAM_IF_SET
2761 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2763 struct sk_buff *msg;
2765 struct nlattr *nl_reg_rules;
2769 mutex_lock(&cfg80211_mutex);
2771 if (!cfg80211_regdomain)
2774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2780 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2781 NL80211_CMD_GET_REG);
2783 goto nla_put_failure;
2785 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2786 cfg80211_regdomain->alpha2);
2788 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2790 goto nla_put_failure;
2792 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2793 struct nlattr *nl_reg_rule;
2794 const struct ieee80211_reg_rule *reg_rule;
2795 const struct ieee80211_freq_range *freq_range;
2796 const struct ieee80211_power_rule *power_rule;
2798 reg_rule = &cfg80211_regdomain->reg_rules[i];
2799 freq_range = ®_rule->freq_range;
2800 power_rule = ®_rule->power_rule;
2802 nl_reg_rule = nla_nest_start(msg, i);
2804 goto nla_put_failure;
2806 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2808 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2809 freq_range->start_freq_khz);
2810 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2811 freq_range->end_freq_khz);
2812 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2813 freq_range->max_bandwidth_khz);
2814 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2815 power_rule->max_antenna_gain);
2816 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2817 power_rule->max_eirp);
2819 nla_nest_end(msg, nl_reg_rule);
2822 nla_nest_end(msg, nl_reg_rules);
2824 genlmsg_end(msg, hdr);
2825 err = genlmsg_reply(msg, info);
2829 genlmsg_cancel(msg, hdr);
2832 mutex_unlock(&cfg80211_mutex);
2836 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2838 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2839 struct nlattr *nl_reg_rule;
2840 char *alpha2 = NULL;
2841 int rem_reg_rules = 0, r = 0;
2842 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2843 struct ieee80211_regdomain *rd = NULL;
2845 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2848 if (!info->attrs[NL80211_ATTR_REG_RULES])
2851 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2853 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2856 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2860 mutex_lock(&cfg80211_mutex);
2862 if (!reg_is_valid_request(alpha2)) {
2867 size_of_regd = sizeof(struct ieee80211_regdomain) +
2868 (num_rules * sizeof(struct ieee80211_reg_rule));
2870 rd = kzalloc(size_of_regd, GFP_KERNEL);
2876 rd->n_reg_rules = num_rules;
2877 rd->alpha2[0] = alpha2[0];
2878 rd->alpha2[1] = alpha2[1];
2880 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2882 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2883 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2885 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2891 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2897 BUG_ON(rule_idx != num_rules);
2901 mutex_unlock(&cfg80211_mutex);
2906 mutex_unlock(&cfg80211_mutex);
2911 static int validate_scan_freqs(struct nlattr *freqs)
2913 struct nlattr *attr1, *attr2;
2914 int n_channels = 0, tmp1, tmp2;
2916 nla_for_each_nested(attr1, freqs, tmp1) {
2919 * Some hardware has a limited channel list for
2920 * scanning, and it is pretty much nonsensical
2921 * to scan for a channel twice, so disallow that
2922 * and don't require drivers to check that the
2923 * channel list they get isn't longer than what
2924 * they can scan, as long as they can scan all
2925 * the channels they registered at once.
2927 nla_for_each_nested(attr2, freqs, tmp2)
2928 if (attr1 != attr2 &&
2929 nla_get_u32(attr1) == nla_get_u32(attr2))
2936 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2938 struct cfg80211_registered_device *rdev;
2939 struct net_device *dev;
2940 struct cfg80211_scan_request *request;
2941 struct cfg80211_ssid *ssid;
2942 struct ieee80211_channel *channel;
2943 struct nlattr *attr;
2944 struct wiphy *wiphy;
2945 int err, tmp, n_ssids = 0, n_channels, i;
2946 enum ieee80211_band band;
2949 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2954 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2958 wiphy = &rdev->wiphy;
2960 if (!rdev->ops->scan) {
2965 if (!netif_running(dev)) {
2970 if (rdev->scan_req) {
2975 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2976 n_channels = validate_scan_freqs(
2977 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2985 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2986 if (wiphy->bands[band])
2987 n_channels += wiphy->bands[band]->n_channels;
2990 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2991 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2994 if (n_ssids > wiphy->max_scan_ssids) {
2999 if (info->attrs[NL80211_ATTR_IE])
3000 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3004 if (ie_len > wiphy->max_scan_ie_len) {
3009 request = kzalloc(sizeof(*request)
3010 + sizeof(*ssid) * n_ssids
3011 + sizeof(channel) * n_channels
3012 + ie_len, GFP_KERNEL);
3019 request->ssids = (void *)&request->channels[n_channels];
3020 request->n_ssids = n_ssids;
3023 request->ie = (void *)(request->ssids + n_ssids);
3025 request->ie = (void *)(request->channels + n_channels);
3029 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3030 /* user specified, bail out if channel not found */
3031 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3032 struct ieee80211_channel *chan;
3034 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3041 /* ignore disabled channels */
3042 if (chan->flags & IEEE80211_CHAN_DISABLED)
3045 request->channels[i] = chan;
3050 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3052 if (!wiphy->bands[band])
3054 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3055 struct ieee80211_channel *chan;
3057 chan = &wiphy->bands[band]->channels[j];
3059 if (chan->flags & IEEE80211_CHAN_DISABLED)
3062 request->channels[i] = chan;
3073 request->n_channels = i;
3076 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3077 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3078 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3082 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3083 request->ssids[i].ssid_len = nla_len(attr);
3088 if (info->attrs[NL80211_ATTR_IE]) {
3089 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3090 memcpy((void *)request->ie,
3091 nla_data(info->attrs[NL80211_ATTR_IE]),
3096 request->wiphy = &rdev->wiphy;
3098 rdev->scan_req = request;
3099 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3102 nl80211_send_scan_start(rdev, dev);
3108 rdev->scan_req = NULL;
3112 cfg80211_unlock_rdev(rdev);
3120 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3121 struct cfg80211_registered_device *rdev,
3122 struct wireless_dev *wdev,
3123 struct cfg80211_internal_bss *intbss)
3125 struct cfg80211_bss *res = &intbss->pub;
3130 ASSERT_WDEV_LOCK(wdev);
3132 hdr = nl80211hdr_put(msg, pid, seq, flags,
3133 NL80211_CMD_NEW_SCAN_RESULTS);
3137 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3138 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3140 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3142 goto nla_put_failure;
3143 if (!is_zero_ether_addr(res->bssid))
3144 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3145 if (res->information_elements && res->len_information_elements)
3146 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3147 res->len_information_elements,
3148 res->information_elements);
3149 if (res->beacon_ies && res->len_beacon_ies &&
3150 res->beacon_ies != res->information_elements)
3151 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3152 res->len_beacon_ies, res->beacon_ies);
3154 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3155 if (res->beacon_interval)
3156 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3157 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3158 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3159 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3160 jiffies_to_msecs(jiffies - intbss->ts));
3162 switch (rdev->wiphy.signal_type) {
3163 case CFG80211_SIGNAL_TYPE_MBM:
3164 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3166 case CFG80211_SIGNAL_TYPE_UNSPEC:
3167 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3173 switch (wdev->iftype) {
3174 case NL80211_IFTYPE_STATION:
3175 if (intbss == wdev->current_bss)
3176 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3177 NL80211_BSS_STATUS_ASSOCIATED);
3178 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3179 if (intbss != wdev->auth_bsses[i])
3181 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3182 NL80211_BSS_STATUS_AUTHENTICATED);
3186 case NL80211_IFTYPE_ADHOC:
3187 if (intbss == wdev->current_bss)
3188 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3189 NL80211_BSS_STATUS_IBSS_JOINED);
3195 nla_nest_end(msg, bss);
3197 return genlmsg_end(msg, hdr);
3200 genlmsg_cancel(msg, hdr);
3204 static int nl80211_dump_scan(struct sk_buff *skb,
3205 struct netlink_callback *cb)
3207 struct cfg80211_registered_device *rdev;
3208 struct net_device *dev;
3209 struct cfg80211_internal_bss *scan;
3210 struct wireless_dev *wdev;
3211 int ifidx = cb->args[0];
3212 int start = cb->args[1], idx = 0;
3216 ifidx = nl80211_get_ifidx(cb);
3219 cb->args[0] = ifidx;
3221 dev = dev_get_by_index(sock_net(skb->sk), ifidx);
3225 rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3227 err = PTR_ERR(rdev);
3228 goto out_put_netdev;
3231 wdev = dev->ieee80211_ptr;
3234 spin_lock_bh(&rdev->bss_lock);
3235 cfg80211_bss_expire(rdev);
3237 list_for_each_entry(scan, &rdev->bss_list, list) {
3240 if (nl80211_send_bss(skb,
3241 NETLINK_CB(cb->skb).pid,
3242 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3243 rdev, wdev, scan) < 0) {
3250 spin_unlock_bh(&rdev->bss_lock);
3255 cfg80211_unlock_rdev(rdev);
3262 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3263 int flags, struct net_device *dev,
3264 struct survey_info *survey)
3267 struct nlattr *infoattr;
3269 /* Survey without a channel doesn't make sense */
3270 if (!survey->channel)
3273 hdr = nl80211hdr_put(msg, pid, seq, flags,
3274 NL80211_CMD_NEW_SURVEY_RESULTS);
3278 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3280 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3282 goto nla_put_failure;
3284 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3285 survey->channel->center_freq);
3286 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3287 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3290 nla_nest_end(msg, infoattr);
3292 return genlmsg_end(msg, hdr);
3295 genlmsg_cancel(msg, hdr);
3299 static int nl80211_dump_survey(struct sk_buff *skb,
3300 struct netlink_callback *cb)
3302 struct survey_info survey;
3303 struct cfg80211_registered_device *dev;
3304 struct net_device *netdev;
3305 int ifidx = cb->args[0];
3306 int survey_idx = cb->args[1];
3310 ifidx = nl80211_get_ifidx(cb);
3313 cb->args[0] = ifidx;
3317 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3323 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3329 if (!dev->ops->dump_survey) {
3335 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3342 if (nl80211_send_survey(skb,
3343 NETLINK_CB(cb->skb).pid,
3344 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3352 cb->args[1] = survey_idx;
3355 cfg80211_unlock_rdev(dev);
3362 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3364 return auth_type <= NL80211_AUTHTYPE_MAX;
3367 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3369 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3370 NL80211_WPA_VERSION_2));
3373 static bool nl80211_valid_akm_suite(u32 akm)
3375 return akm == WLAN_AKM_SUITE_8021X ||
3376 akm == WLAN_AKM_SUITE_PSK;
3379 static bool nl80211_valid_cipher_suite(u32 cipher)
3381 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3382 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3383 cipher == WLAN_CIPHER_SUITE_TKIP ||
3384 cipher == WLAN_CIPHER_SUITE_CCMP ||
3385 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3389 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3391 struct cfg80211_registered_device *rdev;
3392 struct net_device *dev;
3393 struct ieee80211_channel *chan;
3394 const u8 *bssid, *ssid, *ie = NULL;
3395 int err, ssid_len, ie_len = 0;
3396 enum nl80211_auth_type auth_type;
3397 struct key_parse key;
3398 bool local_state_change;
3400 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3403 if (!info->attrs[NL80211_ATTR_MAC])
3406 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3409 if (!info->attrs[NL80211_ATTR_SSID])
3412 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3415 err = nl80211_parse_key(info, &key);
3420 if (!key.p.key || !key.p.key_len)
3422 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3423 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3424 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3425 key.p.key_len != WLAN_KEY_LEN_WEP104))
3436 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3440 if (!rdev->ops->auth) {
3445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3450 if (!netif_running(dev)) {
3455 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3456 chan = ieee80211_get_channel(&rdev->wiphy,
3457 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3458 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3463 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3464 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3466 if (info->attrs[NL80211_ATTR_IE]) {
3467 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3468 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3471 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3472 if (!nl80211_valid_auth_type(auth_type)) {
3477 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3479 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3480 ssid, ssid_len, ie, ie_len,
3481 key.p.key, key.p.key_len, key.idx,
3482 local_state_change);
3485 cfg80211_unlock_rdev(rdev);
3492 static int nl80211_crypto_settings(struct genl_info *info,
3493 struct cfg80211_crypto_settings *settings,
3496 memset(settings, 0, sizeof(*settings));
3498 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3500 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3504 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3505 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3506 settings->n_ciphers_pairwise = len / sizeof(u32);
3508 if (len % sizeof(u32))
3511 if (settings->n_ciphers_pairwise > cipher_limit)
3514 memcpy(settings->ciphers_pairwise, data, len);
3516 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3517 if (!nl80211_valid_cipher_suite(
3518 settings->ciphers_pairwise[i]))
3522 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3523 settings->cipher_group =
3524 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3525 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3529 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3530 settings->wpa_versions =
3531 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3532 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3536 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3540 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3541 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3542 settings->n_akm_suites = len / sizeof(u32);
3544 if (len % sizeof(u32))
3547 memcpy(settings->akm_suites, data, len);
3549 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3550 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3557 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3559 struct cfg80211_registered_device *rdev;
3560 struct net_device *dev;
3561 struct wireless_dev *wdev;
3562 struct cfg80211_crypto_settings crypto;
3563 struct ieee80211_channel *chan, *fixedchan;
3564 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
3565 int err, ssid_len, ie_len = 0;
3566 bool use_mfp = false;
3568 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3571 if (!info->attrs[NL80211_ATTR_MAC] ||
3572 !info->attrs[NL80211_ATTR_SSID] ||
3573 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
3578 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3582 if (!rdev->ops->assoc) {
3587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3592 if (!netif_running(dev)) {
3597 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3599 chan = ieee80211_get_channel(&rdev->wiphy,
3600 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3601 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3606 mutex_lock(&rdev->devlist_mtx);
3607 wdev = dev->ieee80211_ptr;
3608 fixedchan = rdev_fixed_channel(rdev, wdev);
3609 if (fixedchan && chan != fixedchan) {
3611 mutex_unlock(&rdev->devlist_mtx);
3614 mutex_unlock(&rdev->devlist_mtx);
3616 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3617 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3619 if (info->attrs[NL80211_ATTR_IE]) {
3620 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3621 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3624 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3625 enum nl80211_mfp mfp =
3626 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3627 if (mfp == NL80211_MFP_REQUIRED)
3629 else if (mfp != NL80211_MFP_NO) {
3635 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3636 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3638 err = nl80211_crypto_settings(info, &crypto, 1);
3640 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3641 ssid, ssid_len, ie, ie_len, use_mfp,
3645 cfg80211_unlock_rdev(rdev);
3652 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3654 struct cfg80211_registered_device *rdev;
3655 struct net_device *dev;
3656 const u8 *ie = NULL, *bssid;
3657 int err, ie_len = 0;
3659 bool local_state_change;
3661 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3664 if (!info->attrs[NL80211_ATTR_MAC])
3667 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3672 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3676 if (!rdev->ops->deauth) {
3681 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3686 if (!netif_running(dev)) {
3691 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3693 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3694 if (reason_code == 0) {
3695 /* Reason Code 0 is reserved */
3700 if (info->attrs[NL80211_ATTR_IE]) {
3701 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3702 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3705 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3707 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3708 local_state_change);
3711 cfg80211_unlock_rdev(rdev);
3718 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3720 struct cfg80211_registered_device *rdev;
3721 struct net_device *dev;
3722 const u8 *ie = NULL, *bssid;
3723 int err, ie_len = 0;
3725 bool local_state_change;
3727 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3730 if (!info->attrs[NL80211_ATTR_MAC])
3733 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3738 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3742 if (!rdev->ops->disassoc) {
3747 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3752 if (!netif_running(dev)) {
3757 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3759 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3760 if (reason_code == 0) {
3761 /* Reason Code 0 is reserved */
3766 if (info->attrs[NL80211_ATTR_IE]) {
3767 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3768 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3771 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3773 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3774 local_state_change);
3777 cfg80211_unlock_rdev(rdev);
3784 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3786 struct cfg80211_registered_device *rdev;
3787 struct net_device *dev;
3788 struct cfg80211_ibss_params ibss;
3789 struct wiphy *wiphy;
3790 struct cfg80211_cached_keys *connkeys = NULL;
3793 memset(&ibss, 0, sizeof(ibss));
3795 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3798 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3799 !info->attrs[NL80211_ATTR_SSID] ||
3800 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3803 ibss.beacon_interval = 100;
3805 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3806 ibss.beacon_interval =
3807 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3808 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3814 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3818 if (!rdev->ops->join_ibss) {
3823 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3828 if (!netif_running(dev)) {
3833 wiphy = &rdev->wiphy;
3835 if (info->attrs[NL80211_ATTR_MAC])
3836 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3837 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3838 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3840 if (info->attrs[NL80211_ATTR_IE]) {
3841 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3842 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3845 ibss.channel = ieee80211_get_channel(wiphy,
3846 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3847 if (!ibss.channel ||
3848 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3849 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3854 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3855 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3857 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3858 connkeys = nl80211_parse_connkeys(rdev,
3859 info->attrs[NL80211_ATTR_KEYS]);
3860 if (IS_ERR(connkeys)) {
3861 err = PTR_ERR(connkeys);
3867 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
3870 cfg80211_unlock_rdev(rdev);
3879 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3881 struct cfg80211_registered_device *rdev;
3882 struct net_device *dev;
3887 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3891 if (!rdev->ops->leave_ibss) {
3896 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3901 if (!netif_running(dev)) {
3906 err = cfg80211_leave_ibss(rdev, dev, false);
3909 cfg80211_unlock_rdev(rdev);
3916 #ifdef CONFIG_NL80211_TESTMODE
3917 static struct genl_multicast_group nl80211_testmode_mcgrp = {
3921 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3923 struct cfg80211_registered_device *rdev;
3926 if (!info->attrs[NL80211_ATTR_TESTDATA])
3931 rdev = cfg80211_get_dev_from_info(info);
3933 err = PTR_ERR(rdev);
3938 if (rdev->ops->testmode_cmd) {
3939 rdev->testmode_info = info;
3940 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3941 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3942 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3943 rdev->testmode_info = NULL;
3946 cfg80211_unlock_rdev(rdev);
3953 static struct sk_buff *
3954 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3955 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3957 struct sk_buff *skb;
3959 struct nlattr *data;
3961 skb = nlmsg_new(approxlen + 100, gfp);
3965 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3971 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3972 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3974 ((void **)skb->cb)[0] = rdev;
3975 ((void **)skb->cb)[1] = hdr;
3976 ((void **)skb->cb)[2] = data;
3985 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3988 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3990 if (WARN_ON(!rdev->testmode_info))
3993 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3994 rdev->testmode_info->snd_pid,
3995 rdev->testmode_info->snd_seq,
3998 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4000 int cfg80211_testmode_reply(struct sk_buff *skb)
4002 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4003 void *hdr = ((void **)skb->cb)[1];
4004 struct nlattr *data = ((void **)skb->cb)[2];
4006 if (WARN_ON(!rdev->testmode_info)) {
4011 nla_nest_end(skb, data);
4012 genlmsg_end(skb, hdr);
4013 return genlmsg_reply(skb, rdev->testmode_info);
4015 EXPORT_SYMBOL(cfg80211_testmode_reply);
4017 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4018 int approxlen, gfp_t gfp)
4020 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4022 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4024 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4026 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4028 void *hdr = ((void **)skb->cb)[1];
4029 struct nlattr *data = ((void **)skb->cb)[2];
4031 nla_nest_end(skb, data);
4032 genlmsg_end(skb, hdr);
4033 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4035 EXPORT_SYMBOL(cfg80211_testmode_event);
4038 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4040 struct cfg80211_registered_device *rdev;
4041 struct net_device *dev;
4042 struct cfg80211_connect_params connect;
4043 struct wiphy *wiphy;
4044 struct cfg80211_cached_keys *connkeys = NULL;
4047 memset(&connect, 0, sizeof(connect));
4049 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4052 if (!info->attrs[NL80211_ATTR_SSID] ||
4053 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4056 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4058 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4059 if (!nl80211_valid_auth_type(connect.auth_type))
4062 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4064 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4066 err = nl80211_crypto_settings(info, &connect.crypto,
4067 NL80211_MAX_NR_CIPHER_SUITES);
4072 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4076 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4081 if (!netif_running(dev)) {
4086 wiphy = &rdev->wiphy;
4088 if (info->attrs[NL80211_ATTR_MAC])
4089 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4090 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4091 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4093 if (info->attrs[NL80211_ATTR_IE]) {
4094 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4095 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4098 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4100 ieee80211_get_channel(wiphy,
4101 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4102 if (!connect.channel ||
4103 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
4109 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4110 connkeys = nl80211_parse_connkeys(rdev,
4111 info->attrs[NL80211_ATTR_KEYS]);
4112 if (IS_ERR(connkeys)) {
4113 err = PTR_ERR(connkeys);
4119 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4122 cfg80211_unlock_rdev(rdev);
4131 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4133 struct cfg80211_registered_device *rdev;
4134 struct net_device *dev;
4138 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4139 reason = WLAN_REASON_DEAUTH_LEAVING;
4141 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4148 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4152 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4157 if (!netif_running(dev)) {
4162 err = cfg80211_disconnect(rdev, dev, reason, true);
4165 cfg80211_unlock_rdev(rdev);
4172 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4174 struct cfg80211_registered_device *rdev;
4179 if (!info->attrs[NL80211_ATTR_PID])
4182 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4186 rdev = cfg80211_get_dev_from_info(info);
4188 err = PTR_ERR(rdev);
4192 net = get_net_ns_by_pid(pid);
4200 /* check if anything to do */
4201 if (net_eq(wiphy_net(&rdev->wiphy), net))
4204 err = cfg80211_switch_netns(rdev, net);
4208 cfg80211_unlock_rdev(rdev);
4214 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4216 struct cfg80211_registered_device *rdev;
4217 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4218 struct cfg80211_pmksa *pmksa) = NULL;
4220 struct net_device *dev;
4221 struct cfg80211_pmksa pmksa;
4223 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4225 if (!info->attrs[NL80211_ATTR_MAC])
4228 if (!info->attrs[NL80211_ATTR_PMKID])
4233 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4237 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4238 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4245 switch (info->genlhdr->cmd) {
4246 case NL80211_CMD_SET_PMKSA:
4247 rdev_ops = rdev->ops->set_pmksa;
4249 case NL80211_CMD_DEL_PMKSA:
4250 rdev_ops = rdev->ops->del_pmksa;
4262 err = rdev_ops(&rdev->wiphy, dev, &pmksa);
4265 cfg80211_unlock_rdev(rdev);
4273 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4275 struct cfg80211_registered_device *rdev;
4277 struct net_device *dev;
4281 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4285 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4290 if (!rdev->ops->flush_pmksa) {
4295 err = rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4298 cfg80211_unlock_rdev(rdev);
4307 static int nl80211_remain_on_channel(struct sk_buff *skb,
4308 struct genl_info *info)
4310 struct cfg80211_registered_device *rdev;
4311 struct net_device *dev;
4312 struct ieee80211_channel *chan;
4313 struct sk_buff *msg;
4316 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4320 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4321 !info->attrs[NL80211_ATTR_DURATION])
4324 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4327 * We should be on that channel for at least one jiffie,
4328 * and more than 5 seconds seems excessive.
4330 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4335 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4339 if (!rdev->ops->remain_on_channel) {
4344 if (!netif_running(dev)) {
4349 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4350 channel_type = nla_get_u32(
4351 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4352 if (channel_type != NL80211_CHAN_NO_HT &&
4353 channel_type != NL80211_CHAN_HT20 &&
4354 channel_type != NL80211_CHAN_HT40PLUS &&
4355 channel_type != NL80211_CHAN_HT40MINUS)
4360 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4361 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4367 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4373 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4374 NL80211_CMD_REMAIN_ON_CHANNEL);
4381 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4382 channel_type, duration, &cookie);
4387 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4389 genlmsg_end(msg, hdr);
4390 err = genlmsg_reply(msg, info);
4398 cfg80211_unlock_rdev(rdev);
4405 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4406 struct genl_info *info)
4408 struct cfg80211_registered_device *rdev;
4409 struct net_device *dev;
4413 if (!info->attrs[NL80211_ATTR_COOKIE])
4418 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4422 if (!rdev->ops->cancel_remain_on_channel) {
4427 if (!netif_running(dev)) {
4432 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4434 err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4437 cfg80211_unlock_rdev(rdev);
4444 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4445 u8 *rates, u8 rates_len)
4450 for (i = 0; i < rates_len; i++) {
4451 int rate = (rates[i] & 0x7f) * 5;
4453 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4454 struct ieee80211_rate *srate =
4455 &sband->bitrates[ridx];
4456 if (rate == srate->bitrate) {
4461 if (ridx == sband->n_bitrates)
4462 return 0; /* rate not found */
4468 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
4469 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4470 .len = NL80211_MAX_SUPP_RATES },
4473 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4474 struct genl_info *info)
4476 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4477 struct cfg80211_registered_device *rdev;
4478 struct cfg80211_bitrate_mask mask;
4480 struct net_device *dev;
4481 struct nlattr *tx_rates;
4482 struct ieee80211_supported_band *sband;
4484 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4489 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4493 if (!rdev->ops->set_bitrate_mask) {
4498 memset(&mask, 0, sizeof(mask));
4499 /* Default to all rates enabled */
4500 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4501 sband = rdev->wiphy.bands[i];
4502 mask.control[i].legacy =
4503 sband ? (1 << sband->n_bitrates) - 1 : 0;
4507 * The nested attribute uses enum nl80211_band as the index. This maps
4508 * directly to the enum ieee80211_band values used in cfg80211.
4510 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4512 enum ieee80211_band band = nla_type(tx_rates);
4513 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4517 sband = rdev->wiphy.bands[band];
4518 if (sband == NULL) {
4522 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4523 nla_len(tx_rates), nl80211_txattr_policy);
4524 if (tb[NL80211_TXRATE_LEGACY]) {
4525 mask.control[band].legacy = rateset_to_mask(
4527 nla_data(tb[NL80211_TXRATE_LEGACY]),
4528 nla_len(tb[NL80211_TXRATE_LEGACY]));
4529 if (mask.control[band].legacy == 0) {
4536 err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
4540 cfg80211_unlock_rdev(rdev);
4546 static int nl80211_register_action(struct sk_buff *skb, struct genl_info *info)
4548 struct cfg80211_registered_device *rdev;
4549 struct net_device *dev;
4552 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4555 if (nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]) < 1)
4560 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4564 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4569 /* not much point in registering if we can't reply */
4570 if (!rdev->ops->action) {
4575 err = cfg80211_mlme_register_action(dev->ieee80211_ptr, info->snd_pid,
4576 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4577 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
4579 cfg80211_unlock_rdev(rdev);
4586 static int nl80211_action(struct sk_buff *skb, struct genl_info *info)
4588 struct cfg80211_registered_device *rdev;
4589 struct net_device *dev;
4590 struct ieee80211_channel *chan;
4591 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4596 struct sk_buff *msg;
4598 if (!info->attrs[NL80211_ATTR_FRAME] ||
4599 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4604 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4608 if (!rdev->ops->action) {
4613 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4618 if (!netif_running(dev)) {
4623 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4624 channel_type = nla_get_u32(
4625 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4626 if (channel_type != NL80211_CHAN_NO_HT &&
4627 channel_type != NL80211_CHAN_HT20 &&
4628 channel_type != NL80211_CHAN_HT40PLUS &&
4629 channel_type != NL80211_CHAN_HT40MINUS)
4634 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4635 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4641 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4647 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4648 NL80211_CMD_ACTION);
4654 err = cfg80211_mlme_action(rdev, dev, chan, channel_type,
4655 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4656 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4661 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4663 genlmsg_end(msg, hdr);
4664 err = genlmsg_reply(msg, info);
4672 cfg80211_unlock_rdev(rdev);
4679 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4681 struct cfg80211_registered_device *rdev;
4682 struct wireless_dev *wdev;
4683 struct net_device *dev;
4688 if (!info->attrs[NL80211_ATTR_PS_STATE]) {
4693 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4695 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) {
4702 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4706 wdev = dev->ieee80211_ptr;
4708 if (!rdev->ops->set_power_mgmt) {
4713 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4715 if (state == wdev->ps)
4720 if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps,
4722 /* assume this means it's off */
4726 cfg80211_unlock_rdev(rdev);
4734 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4736 struct cfg80211_registered_device *rdev;
4737 enum nl80211_ps_state ps_state;
4738 struct wireless_dev *wdev;
4739 struct net_device *dev;
4740 struct sk_buff *msg;
4746 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4750 wdev = dev->ieee80211_ptr;
4752 if (!rdev->ops->set_power_mgmt) {
4757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4763 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4764 NL80211_CMD_GET_POWER_SAVE);
4771 ps_state = NL80211_PS_ENABLED;
4773 ps_state = NL80211_PS_DISABLED;
4775 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4777 genlmsg_end(msg, hdr);
4778 err = genlmsg_reply(msg, info);
4788 cfg80211_unlock_rdev(rdev);
4797 static struct nla_policy
4798 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4799 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4800 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4801 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4804 static int nl80211_set_cqm_rssi(struct genl_info *info,
4805 s32 threshold, u32 hysteresis)
4807 struct cfg80211_registered_device *rdev;
4808 struct wireless_dev *wdev;
4809 struct net_device *dev;
4817 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4821 wdev = dev->ieee80211_ptr;
4823 if (!rdev->ops->set_cqm_rssi_config) {
4828 if (wdev->iftype != NL80211_IFTYPE_STATION) {
4833 err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4834 threshold, hysteresis);
4837 cfg80211_unlock_rdev(rdev);
4844 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4846 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4850 cqm = info->attrs[NL80211_ATTR_CQM];
4856 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4857 nl80211_attr_cqm_policy);
4861 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4862 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4865 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4866 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4867 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4875 static struct genl_ops nl80211_ops[] = {
4877 .cmd = NL80211_CMD_GET_WIPHY,
4878 .doit = nl80211_get_wiphy,
4879 .dumpit = nl80211_dump_wiphy,
4880 .policy = nl80211_policy,
4881 /* can be retrieved by unprivileged users */
4884 .cmd = NL80211_CMD_SET_WIPHY,
4885 .doit = nl80211_set_wiphy,
4886 .policy = nl80211_policy,
4887 .flags = GENL_ADMIN_PERM,
4890 .cmd = NL80211_CMD_GET_INTERFACE,
4891 .doit = nl80211_get_interface,
4892 .dumpit = nl80211_dump_interface,
4893 .policy = nl80211_policy,
4894 /* can be retrieved by unprivileged users */
4897 .cmd = NL80211_CMD_SET_INTERFACE,
4898 .doit = nl80211_set_interface,
4899 .policy = nl80211_policy,
4900 .flags = GENL_ADMIN_PERM,
4903 .cmd = NL80211_CMD_NEW_INTERFACE,
4904 .doit = nl80211_new_interface,
4905 .policy = nl80211_policy,
4906 .flags = GENL_ADMIN_PERM,
4909 .cmd = NL80211_CMD_DEL_INTERFACE,
4910 .doit = nl80211_del_interface,
4911 .policy = nl80211_policy,
4912 .flags = GENL_ADMIN_PERM,
4915 .cmd = NL80211_CMD_GET_KEY,
4916 .doit = nl80211_get_key,
4917 .policy = nl80211_policy,
4918 .flags = GENL_ADMIN_PERM,
4921 .cmd = NL80211_CMD_SET_KEY,
4922 .doit = nl80211_set_key,
4923 .policy = nl80211_policy,
4924 .flags = GENL_ADMIN_PERM,
4927 .cmd = NL80211_CMD_NEW_KEY,
4928 .doit = nl80211_new_key,
4929 .policy = nl80211_policy,
4930 .flags = GENL_ADMIN_PERM,
4933 .cmd = NL80211_CMD_DEL_KEY,
4934 .doit = nl80211_del_key,
4935 .policy = nl80211_policy,
4936 .flags = GENL_ADMIN_PERM,
4939 .cmd = NL80211_CMD_SET_BEACON,
4940 .policy = nl80211_policy,
4941 .flags = GENL_ADMIN_PERM,
4942 .doit = nl80211_addset_beacon,
4945 .cmd = NL80211_CMD_NEW_BEACON,
4946 .policy = nl80211_policy,
4947 .flags = GENL_ADMIN_PERM,
4948 .doit = nl80211_addset_beacon,
4951 .cmd = NL80211_CMD_DEL_BEACON,
4952 .policy = nl80211_policy,
4953 .flags = GENL_ADMIN_PERM,
4954 .doit = nl80211_del_beacon,
4957 .cmd = NL80211_CMD_GET_STATION,
4958 .doit = nl80211_get_station,
4959 .dumpit = nl80211_dump_station,
4960 .policy = nl80211_policy,
4963 .cmd = NL80211_CMD_SET_STATION,
4964 .doit = nl80211_set_station,
4965 .policy = nl80211_policy,
4966 .flags = GENL_ADMIN_PERM,
4969 .cmd = NL80211_CMD_NEW_STATION,
4970 .doit = nl80211_new_station,
4971 .policy = nl80211_policy,
4972 .flags = GENL_ADMIN_PERM,
4975 .cmd = NL80211_CMD_DEL_STATION,
4976 .doit = nl80211_del_station,
4977 .policy = nl80211_policy,
4978 .flags = GENL_ADMIN_PERM,
4981 .cmd = NL80211_CMD_GET_MPATH,
4982 .doit = nl80211_get_mpath,
4983 .dumpit = nl80211_dump_mpath,
4984 .policy = nl80211_policy,
4985 .flags = GENL_ADMIN_PERM,
4988 .cmd = NL80211_CMD_SET_MPATH,
4989 .doit = nl80211_set_mpath,
4990 .policy = nl80211_policy,
4991 .flags = GENL_ADMIN_PERM,
4994 .cmd = NL80211_CMD_NEW_MPATH,
4995 .doit = nl80211_new_mpath,
4996 .policy = nl80211_policy,
4997 .flags = GENL_ADMIN_PERM,
5000 .cmd = NL80211_CMD_DEL_MPATH,
5001 .doit = nl80211_del_mpath,
5002 .policy = nl80211_policy,
5003 .flags = GENL_ADMIN_PERM,
5006 .cmd = NL80211_CMD_SET_BSS,
5007 .doit = nl80211_set_bss,
5008 .policy = nl80211_policy,
5009 .flags = GENL_ADMIN_PERM,
5012 .cmd = NL80211_CMD_GET_REG,
5013 .doit = nl80211_get_reg,
5014 .policy = nl80211_policy,
5015 /* can be retrieved by unprivileged users */
5018 .cmd = NL80211_CMD_SET_REG,
5019 .doit = nl80211_set_reg,
5020 .policy = nl80211_policy,
5021 .flags = GENL_ADMIN_PERM,
5024 .cmd = NL80211_CMD_REQ_SET_REG,
5025 .doit = nl80211_req_set_reg,
5026 .policy = nl80211_policy,
5027 .flags = GENL_ADMIN_PERM,
5030 .cmd = NL80211_CMD_GET_MESH_PARAMS,
5031 .doit = nl80211_get_mesh_params,
5032 .policy = nl80211_policy,
5033 /* can be retrieved by unprivileged users */
5036 .cmd = NL80211_CMD_SET_MESH_PARAMS,
5037 .doit = nl80211_set_mesh_params,
5038 .policy = nl80211_policy,
5039 .flags = GENL_ADMIN_PERM,
5042 .cmd = NL80211_CMD_TRIGGER_SCAN,
5043 .doit = nl80211_trigger_scan,
5044 .policy = nl80211_policy,
5045 .flags = GENL_ADMIN_PERM,
5048 .cmd = NL80211_CMD_GET_SCAN,
5049 .policy = nl80211_policy,
5050 .dumpit = nl80211_dump_scan,
5053 .cmd = NL80211_CMD_AUTHENTICATE,
5054 .doit = nl80211_authenticate,
5055 .policy = nl80211_policy,
5056 .flags = GENL_ADMIN_PERM,
5059 .cmd = NL80211_CMD_ASSOCIATE,
5060 .doit = nl80211_associate,
5061 .policy = nl80211_policy,
5062 .flags = GENL_ADMIN_PERM,
5065 .cmd = NL80211_CMD_DEAUTHENTICATE,
5066 .doit = nl80211_deauthenticate,
5067 .policy = nl80211_policy,
5068 .flags = GENL_ADMIN_PERM,
5071 .cmd = NL80211_CMD_DISASSOCIATE,
5072 .doit = nl80211_disassociate,
5073 .policy = nl80211_policy,
5074 .flags = GENL_ADMIN_PERM,
5077 .cmd = NL80211_CMD_JOIN_IBSS,
5078 .doit = nl80211_join_ibss,
5079 .policy = nl80211_policy,
5080 .flags = GENL_ADMIN_PERM,
5083 .cmd = NL80211_CMD_LEAVE_IBSS,
5084 .doit = nl80211_leave_ibss,
5085 .policy = nl80211_policy,
5086 .flags = GENL_ADMIN_PERM,
5088 #ifdef CONFIG_NL80211_TESTMODE
5090 .cmd = NL80211_CMD_TESTMODE,
5091 .doit = nl80211_testmode_do,
5092 .policy = nl80211_policy,
5093 .flags = GENL_ADMIN_PERM,
5097 .cmd = NL80211_CMD_CONNECT,
5098 .doit = nl80211_connect,
5099 .policy = nl80211_policy,
5100 .flags = GENL_ADMIN_PERM,
5103 .cmd = NL80211_CMD_DISCONNECT,
5104 .doit = nl80211_disconnect,
5105 .policy = nl80211_policy,
5106 .flags = GENL_ADMIN_PERM,
5109 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5110 .doit = nl80211_wiphy_netns,
5111 .policy = nl80211_policy,
5112 .flags = GENL_ADMIN_PERM,
5115 .cmd = NL80211_CMD_GET_SURVEY,
5116 .policy = nl80211_policy,
5117 .dumpit = nl80211_dump_survey,
5120 .cmd = NL80211_CMD_SET_PMKSA,
5121 .doit = nl80211_setdel_pmksa,
5122 .policy = nl80211_policy,
5123 .flags = GENL_ADMIN_PERM,
5126 .cmd = NL80211_CMD_DEL_PMKSA,
5127 .doit = nl80211_setdel_pmksa,
5128 .policy = nl80211_policy,
5129 .flags = GENL_ADMIN_PERM,
5132 .cmd = NL80211_CMD_FLUSH_PMKSA,
5133 .doit = nl80211_flush_pmksa,
5134 .policy = nl80211_policy,
5135 .flags = GENL_ADMIN_PERM,
5138 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5139 .doit = nl80211_remain_on_channel,
5140 .policy = nl80211_policy,
5141 .flags = GENL_ADMIN_PERM,
5144 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5145 .doit = nl80211_cancel_remain_on_channel,
5146 .policy = nl80211_policy,
5147 .flags = GENL_ADMIN_PERM,
5150 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5151 .doit = nl80211_set_tx_bitrate_mask,
5152 .policy = nl80211_policy,
5153 .flags = GENL_ADMIN_PERM,
5156 .cmd = NL80211_CMD_REGISTER_ACTION,
5157 .doit = nl80211_register_action,
5158 .policy = nl80211_policy,
5159 .flags = GENL_ADMIN_PERM,
5162 .cmd = NL80211_CMD_ACTION,
5163 .doit = nl80211_action,
5164 .policy = nl80211_policy,
5165 .flags = GENL_ADMIN_PERM,
5168 .cmd = NL80211_CMD_SET_POWER_SAVE,
5169 .doit = nl80211_set_power_save,
5170 .policy = nl80211_policy,
5171 .flags = GENL_ADMIN_PERM,
5174 .cmd = NL80211_CMD_GET_POWER_SAVE,
5175 .doit = nl80211_get_power_save,
5176 .policy = nl80211_policy,
5177 /* can be retrieved by unprivileged users */
5180 .cmd = NL80211_CMD_SET_CQM,
5181 .doit = nl80211_set_cqm,
5182 .policy = nl80211_policy,
5183 .flags = GENL_ADMIN_PERM,
5187 static struct genl_multicast_group nl80211_mlme_mcgrp = {
5191 /* multicast groups */
5192 static struct genl_multicast_group nl80211_config_mcgrp = {
5195 static struct genl_multicast_group nl80211_scan_mcgrp = {
5198 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5199 .name = "regulatory",
5202 /* notification functions */
5204 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5206 struct sk_buff *msg;
5208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5212 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5217 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5218 nl80211_config_mcgrp.id, GFP_KERNEL);
5221 static int nl80211_add_scan_req(struct sk_buff *msg,
5222 struct cfg80211_registered_device *rdev)
5224 struct cfg80211_scan_request *req = rdev->scan_req;
5225 struct nlattr *nest;
5228 ASSERT_RDEV_LOCK(rdev);
5233 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5235 goto nla_put_failure;
5236 for (i = 0; i < req->n_ssids; i++)
5237 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5238 nla_nest_end(msg, nest);
5240 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5242 goto nla_put_failure;
5243 for (i = 0; i < req->n_channels; i++)
5244 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5245 nla_nest_end(msg, nest);
5248 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5255 static int nl80211_send_scan_msg(struct sk_buff *msg,
5256 struct cfg80211_registered_device *rdev,
5257 struct net_device *netdev,
5258 u32 pid, u32 seq, int flags,
5263 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5267 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5268 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5270 /* ignore errors and send incomplete event anyway */
5271 nl80211_add_scan_req(msg, rdev);
5273 return genlmsg_end(msg, hdr);
5276 genlmsg_cancel(msg, hdr);
5280 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5281 struct net_device *netdev)
5283 struct sk_buff *msg;
5285 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5289 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5290 NL80211_CMD_TRIGGER_SCAN) < 0) {
5295 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5296 nl80211_scan_mcgrp.id, GFP_KERNEL);
5299 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5300 struct net_device *netdev)
5302 struct sk_buff *msg;
5304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5308 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5309 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
5314 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5315 nl80211_scan_mcgrp.id, GFP_KERNEL);
5318 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5319 struct net_device *netdev)
5321 struct sk_buff *msg;
5323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5327 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5328 NL80211_CMD_SCAN_ABORTED) < 0) {
5333 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5334 nl80211_scan_mcgrp.id, GFP_KERNEL);
5338 * This can happen on global regulatory changes or device specific settings
5339 * based on custom world regulatory domains.
5341 void nl80211_send_reg_change_event(struct regulatory_request *request)
5343 struct sk_buff *msg;
5346 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5350 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5356 /* Userspace can always count this one always being set */
5357 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5359 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5360 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5361 NL80211_REGDOM_TYPE_WORLD);
5362 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5363 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5364 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5365 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5367 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5368 NL80211_REGDOM_TYPE_INTERSECTION);
5370 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5371 NL80211_REGDOM_TYPE_COUNTRY);
5372 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5375 if (wiphy_idx_valid(request->wiphy_idx))
5376 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5378 if (genlmsg_end(msg, hdr) < 0) {
5384 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5391 genlmsg_cancel(msg, hdr);
5395 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5396 struct net_device *netdev,
5397 const u8 *buf, size_t len,
5398 enum nl80211_commands cmd, gfp_t gfp)
5400 struct sk_buff *msg;
5403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5407 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5413 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5414 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5415 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5417 if (genlmsg_end(msg, hdr) < 0) {
5422 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5423 nl80211_mlme_mcgrp.id, gfp);
5427 genlmsg_cancel(msg, hdr);
5431 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
5432 struct net_device *netdev, const u8 *buf,
5433 size_t len, gfp_t gfp)
5435 nl80211_send_mlme_event(rdev, netdev, buf, len,
5436 NL80211_CMD_AUTHENTICATE, gfp);
5439 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5440 struct net_device *netdev, const u8 *buf,
5441 size_t len, gfp_t gfp)
5443 nl80211_send_mlme_event(rdev, netdev, buf, len,
5444 NL80211_CMD_ASSOCIATE, gfp);
5447 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
5448 struct net_device *netdev, const u8 *buf,
5449 size_t len, gfp_t gfp)
5451 nl80211_send_mlme_event(rdev, netdev, buf, len,
5452 NL80211_CMD_DEAUTHENTICATE, gfp);
5455 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5456 struct net_device *netdev, const u8 *buf,
5457 size_t len, gfp_t gfp)
5459 nl80211_send_mlme_event(rdev, netdev, buf, len,
5460 NL80211_CMD_DISASSOCIATE, gfp);
5463 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5464 struct net_device *netdev, int cmd,
5465 const u8 *addr, gfp_t gfp)
5467 struct sk_buff *msg;
5470 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5474 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5480 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5481 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5482 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5483 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5485 if (genlmsg_end(msg, hdr) < 0) {
5490 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5491 nl80211_mlme_mcgrp.id, gfp);
5495 genlmsg_cancel(msg, hdr);
5499 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
5500 struct net_device *netdev, const u8 *addr,
5503 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
5507 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
5508 struct net_device *netdev, const u8 *addr,
5511 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5515 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5516 struct net_device *netdev, const u8 *bssid,
5517 const u8 *req_ie, size_t req_ie_len,
5518 const u8 *resp_ie, size_t resp_ie_len,
5519 u16 status, gfp_t gfp)
5521 struct sk_buff *msg;
5524 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5528 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5534 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5535 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5537 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5538 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5540 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5542 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5544 if (genlmsg_end(msg, hdr) < 0) {
5549 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5550 nl80211_mlme_mcgrp.id, gfp);
5554 genlmsg_cancel(msg, hdr);
5559 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5560 struct net_device *netdev, const u8 *bssid,
5561 const u8 *req_ie, size_t req_ie_len,
5562 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5564 struct sk_buff *msg;
5567 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5577 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5578 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5579 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5581 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5583 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5585 if (genlmsg_end(msg, hdr) < 0) {
5590 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5591 nl80211_mlme_mcgrp.id, gfp);
5595 genlmsg_cancel(msg, hdr);
5600 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5601 struct net_device *netdev, u16 reason,
5602 const u8 *ie, size_t ie_len, bool from_ap)
5604 struct sk_buff *msg;
5607 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5611 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5617 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5619 if (from_ap && reason)
5620 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5622 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5624 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5626 if (genlmsg_end(msg, hdr) < 0) {
5631 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5632 nl80211_mlme_mcgrp.id, GFP_KERNEL);
5636 genlmsg_cancel(msg, hdr);
5641 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5642 struct net_device *netdev, const u8 *bssid,
5645 struct sk_buff *msg;
5648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5652 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5658 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5659 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5660 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5662 if (genlmsg_end(msg, hdr) < 0) {
5667 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5668 nl80211_mlme_mcgrp.id, gfp);
5672 genlmsg_cancel(msg, hdr);
5676 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5677 struct net_device *netdev, const u8 *addr,
5678 enum nl80211_key_type key_type, int key_id,
5679 const u8 *tsc, gfp_t gfp)
5681 struct sk_buff *msg;
5684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5688 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5694 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5695 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5697 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5698 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5699 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5701 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5703 if (genlmsg_end(msg, hdr) < 0) {
5708 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5709 nl80211_mlme_mcgrp.id, gfp);
5713 genlmsg_cancel(msg, hdr);
5717 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5718 struct ieee80211_channel *channel_before,
5719 struct ieee80211_channel *channel_after)
5721 struct sk_buff *msg;
5723 struct nlattr *nl_freq;
5725 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
5729 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5736 * Since we are applying the beacon hint to a wiphy we know its
5737 * wiphy_idx is valid
5739 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5742 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5744 goto nla_put_failure;
5745 if (nl80211_msg_put_channel(msg, channel_before))
5746 goto nla_put_failure;
5747 nla_nest_end(msg, nl_freq);
5750 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5752 goto nla_put_failure;
5753 if (nl80211_msg_put_channel(msg, channel_after))
5754 goto nla_put_failure;
5755 nla_nest_end(msg, nl_freq);
5757 if (genlmsg_end(msg, hdr) < 0) {
5763 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5770 genlmsg_cancel(msg, hdr);
5774 static void nl80211_send_remain_on_chan_event(
5775 int cmd, struct cfg80211_registered_device *rdev,
5776 struct net_device *netdev, u64 cookie,
5777 struct ieee80211_channel *chan,
5778 enum nl80211_channel_type channel_type,
5779 unsigned int duration, gfp_t gfp)
5781 struct sk_buff *msg;
5784 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5788 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5794 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5795 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5796 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5797 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5798 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5800 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5801 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5803 if (genlmsg_end(msg, hdr) < 0) {
5808 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5809 nl80211_mlme_mcgrp.id, gfp);
5813 genlmsg_cancel(msg, hdr);
5817 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5818 struct net_device *netdev, u64 cookie,
5819 struct ieee80211_channel *chan,
5820 enum nl80211_channel_type channel_type,
5821 unsigned int duration, gfp_t gfp)
5823 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5824 rdev, netdev, cookie, chan,
5825 channel_type, duration, gfp);
5828 void nl80211_send_remain_on_channel_cancel(
5829 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5830 u64 cookie, struct ieee80211_channel *chan,
5831 enum nl80211_channel_type channel_type, gfp_t gfp)
5833 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5834 rdev, netdev, cookie, chan,
5835 channel_type, 0, gfp);
5838 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5839 struct net_device *dev, const u8 *mac_addr,
5840 struct station_info *sinfo, gfp_t gfp)
5842 struct sk_buff *msg;
5844 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5848 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5853 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5854 nl80211_mlme_mcgrp.id, gfp);
5857 int nl80211_send_action(struct cfg80211_registered_device *rdev,
5858 struct net_device *netdev, u32 nlpid,
5859 int freq, const u8 *buf, size_t len, gfp_t gfp)
5861 struct sk_buff *msg;
5865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5869 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION);
5875 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5877 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5878 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5880 err = genlmsg_end(msg, hdr);
5886 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5892 genlmsg_cancel(msg, hdr);
5897 void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev,
5898 struct net_device *netdev, u64 cookie,
5899 const u8 *buf, size_t len, bool ack,
5902 struct sk_buff *msg;
5905 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5909 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION_TX_STATUS);
5915 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5916 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5917 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5918 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5920 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5922 if (genlmsg_end(msg, hdr) < 0) {
5927 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5931 genlmsg_cancel(msg, hdr);
5936 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5937 struct net_device *netdev,
5938 enum nl80211_cqm_rssi_threshold_event rssi_event,
5941 struct sk_buff *msg;
5942 struct nlattr *pinfoattr;
5945 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5949 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5955 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5956 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5958 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5960 goto nla_put_failure;
5962 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5965 nla_nest_end(msg, pinfoattr);
5967 if (genlmsg_end(msg, hdr) < 0) {
5972 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5973 nl80211_mlme_mcgrp.id, gfp);
5977 genlmsg_cancel(msg, hdr);
5981 static int nl80211_netlink_notify(struct notifier_block * nb,
5982 unsigned long state,
5985 struct netlink_notify *notify = _notify;
5986 struct cfg80211_registered_device *rdev;
5987 struct wireless_dev *wdev;
5989 if (state != NETLINK_URELEASE)
5994 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5995 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
5996 cfg80211_mlme_unregister_actions(wdev, notify->pid);
6003 static struct notifier_block nl80211_netlink_notifier = {
6004 .notifier_call = nl80211_netlink_notify,
6007 /* initialisation/exit functions */
6009 int nl80211_init(void)
6013 err = genl_register_family_with_ops(&nl80211_fam,
6014 nl80211_ops, ARRAY_SIZE(nl80211_ops));
6018 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6022 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6026 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6030 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6034 #ifdef CONFIG_NL80211_TESTMODE
6035 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6040 err = netlink_register_notifier(&nl80211_netlink_notifier);
6046 genl_unregister_family(&nl80211_fam);
6050 void nl80211_exit(void)
6052 netlink_unregister_notifier(&nl80211_netlink_notifier);
6053 genl_unregister_family(&nl80211_fam);