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 },
155 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
157 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
158 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
161 /* policy for the attributes */
162 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
163 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
164 [NL80211_KEY_IDX] = { .type = NLA_U8 },
165 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
166 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
167 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
168 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
171 /* ifidx get helper */
172 static int nl80211_get_ifidx(struct netlink_callback *cb)
176 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
177 nl80211_fam.attrbuf, nl80211_fam.maxattr,
182 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
185 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
192 static bool is_valid_ie_attr(const struct nlattr *attr)
200 pos = nla_data(attr);
221 /* message building helper */
222 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
225 /* since there is no private header just add the generic one */
226 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
229 static int nl80211_msg_put_channel(struct sk_buff *msg,
230 struct ieee80211_channel *chan)
232 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
235 if (chan->flags & IEEE80211_CHAN_DISABLED)
236 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
237 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
238 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
239 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
240 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
241 if (chan->flags & IEEE80211_CHAN_RADAR)
242 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
244 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
245 DBM_TO_MBM(chan->max_power));
253 /* netlink command implementations */
261 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
263 struct nlattr *tb[NL80211_KEY_MAX + 1];
264 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
269 k->def = !!tb[NL80211_KEY_DEFAULT];
270 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
272 if (tb[NL80211_KEY_IDX])
273 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
275 if (tb[NL80211_KEY_DATA]) {
276 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
277 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
280 if (tb[NL80211_KEY_SEQ]) {
281 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
282 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
285 if (tb[NL80211_KEY_CIPHER])
286 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
291 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
293 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
294 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
295 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
298 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
299 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
300 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
303 if (info->attrs[NL80211_ATTR_KEY_IDX])
304 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
306 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
307 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
309 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
310 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
315 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
319 memset(k, 0, sizeof(*k));
322 if (info->attrs[NL80211_ATTR_KEY])
323 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
325 err = nl80211_parse_key_old(info, k);
330 if (k->def && k->defmgmt)
335 if (k->idx < 4 || k->idx > 5)
338 if (k->idx < 0 || k->idx > 3)
341 if (k->idx < 0 || k->idx > 5)
349 static struct cfg80211_cached_keys *
350 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
353 struct key_parse parse;
355 struct cfg80211_cached_keys *result;
356 int rem, err, def = 0;
358 result = kzalloc(sizeof(*result), GFP_KERNEL);
360 return ERR_PTR(-ENOMEM);
363 result->defmgmt = -1;
365 nla_for_each_nested(key, keys, rem) {
366 memset(&parse, 0, sizeof(parse));
369 err = nl80211_parse_key_new(key, &parse);
375 if (parse.idx < 0 || parse.idx > 4)
381 result->def = parse.idx;
382 } else if (parse.defmgmt)
384 err = cfg80211_validate_key_settings(rdev, &parse.p,
388 result->params[parse.idx].cipher = parse.p.cipher;
389 result->params[parse.idx].key_len = parse.p.key_len;
390 result->params[parse.idx].key = result->data[parse.idx];
391 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
400 static int nl80211_key_allowed(struct wireless_dev *wdev)
402 ASSERT_WDEV_LOCK(wdev);
404 if (!netif_running(wdev->netdev))
407 switch (wdev->iftype) {
408 case NL80211_IFTYPE_AP:
409 case NL80211_IFTYPE_AP_VLAN:
411 case NL80211_IFTYPE_ADHOC:
412 if (!wdev->current_bss)
415 case NL80211_IFTYPE_STATION:
416 if (wdev->sme_state != CFG80211_SME_CONNECTED)
426 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
427 struct cfg80211_registered_device *dev)
430 struct nlattr *nl_bands, *nl_band;
431 struct nlattr *nl_freqs, *nl_freq;
432 struct nlattr *nl_rates, *nl_rate;
433 struct nlattr *nl_modes;
434 struct nlattr *nl_cmds;
435 enum ieee80211_band band;
436 struct ieee80211_channel *chan;
437 struct ieee80211_rate *rate;
439 u16 ifmodes = dev->wiphy.interface_modes;
441 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
445 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
446 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
448 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
449 cfg80211_rdev_list_generation);
451 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
452 dev->wiphy.retry_short);
453 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
454 dev->wiphy.retry_long);
455 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
456 dev->wiphy.frag_threshold);
457 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
458 dev->wiphy.rts_threshold);
459 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
460 dev->wiphy.coverage_class);
462 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
463 dev->wiphy.max_scan_ssids);
464 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
465 dev->wiphy.max_scan_ie_len);
467 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
468 sizeof(u32) * dev->wiphy.n_cipher_suites,
469 dev->wiphy.cipher_suites);
471 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
472 dev->wiphy.max_num_pmkids);
474 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
476 goto nla_put_failure;
481 NLA_PUT_FLAG(msg, i);
486 nla_nest_end(msg, nl_modes);
488 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
490 goto nla_put_failure;
492 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
493 if (!dev->wiphy.bands[band])
496 nl_band = nla_nest_start(msg, band);
498 goto nla_put_failure;
501 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
502 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
503 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
504 &dev->wiphy.bands[band]->ht_cap.mcs);
505 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
506 dev->wiphy.bands[band]->ht_cap.cap);
507 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
508 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
509 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
510 dev->wiphy.bands[band]->ht_cap.ampdu_density);
513 /* add frequencies */
514 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
516 goto nla_put_failure;
518 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
519 nl_freq = nla_nest_start(msg, i);
521 goto nla_put_failure;
523 chan = &dev->wiphy.bands[band]->channels[i];
525 if (nl80211_msg_put_channel(msg, chan))
526 goto nla_put_failure;
528 nla_nest_end(msg, nl_freq);
531 nla_nest_end(msg, nl_freqs);
534 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
536 goto nla_put_failure;
538 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
539 nl_rate = nla_nest_start(msg, i);
541 goto nla_put_failure;
543 rate = &dev->wiphy.bands[band]->bitrates[i];
544 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
546 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
548 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
550 nla_nest_end(msg, nl_rate);
553 nla_nest_end(msg, nl_rates);
555 nla_nest_end(msg, nl_band);
557 nla_nest_end(msg, nl_bands);
559 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
561 goto nla_put_failure;
566 if (dev->ops->op) { \
568 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
572 CMD(add_virtual_intf, NEW_INTERFACE);
573 CMD(change_virtual_intf, SET_INTERFACE);
574 CMD(add_key, NEW_KEY);
575 CMD(add_beacon, NEW_BEACON);
576 CMD(add_station, NEW_STATION);
577 CMD(add_mpath, NEW_MPATH);
578 CMD(set_mesh_params, SET_MESH_PARAMS);
579 CMD(change_bss, SET_BSS);
580 CMD(auth, AUTHENTICATE);
581 CMD(assoc, ASSOCIATE);
582 CMD(deauth, DEAUTHENTICATE);
583 CMD(disassoc, DISASSOCIATE);
584 CMD(join_ibss, JOIN_IBSS);
585 CMD(set_pmksa, SET_PMKSA);
586 CMD(del_pmksa, DEL_PMKSA);
587 CMD(flush_pmksa, FLUSH_PMKSA);
588 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
589 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
591 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
593 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
595 CMD(set_channel, SET_CHANNEL);
599 if (dev->ops->connect || dev->ops->auth) {
601 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
604 if (dev->ops->disconnect || dev->ops->deauth) {
606 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
609 nla_nest_end(msg, nl_cmds);
611 return genlmsg_end(msg, hdr);
614 genlmsg_cancel(msg, hdr);
618 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
621 int start = cb->args[0];
622 struct cfg80211_registered_device *dev;
624 mutex_lock(&cfg80211_mutex);
625 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
626 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
630 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
631 cb->nlh->nlmsg_seq, NLM_F_MULTI,
637 mutex_unlock(&cfg80211_mutex);
644 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
647 struct cfg80211_registered_device *dev;
649 dev = cfg80211_get_dev_from_info(info);
653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
657 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
660 cfg80211_unlock_rdev(dev);
662 return genlmsg_reply(msg, info);
667 cfg80211_unlock_rdev(dev);
671 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
672 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
673 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
674 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
675 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
676 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
679 static int parse_txq_params(struct nlattr *tb[],
680 struct ieee80211_txq_params *txq_params)
682 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
683 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
684 !tb[NL80211_TXQ_ATTR_AIFS])
687 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
688 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
689 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
690 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
691 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
696 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
699 * You can only set the channel explicitly for AP, mesh
700 * and WDS type interfaces; all others have their channel
701 * managed via their respective "establish a connection"
702 * command (connect, join, ...)
704 * Monitors are special as they are normally slaved to
705 * whatever else is going on, so they behave as though
706 * you tried setting the wiphy channel itself.
709 wdev->iftype == NL80211_IFTYPE_AP ||
710 wdev->iftype == NL80211_IFTYPE_WDS ||
711 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
712 wdev->iftype == NL80211_IFTYPE_MONITOR;
715 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
716 struct wireless_dev *wdev,
717 struct genl_info *info)
719 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
723 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
726 if (!nl80211_can_set_dev_channel(wdev))
729 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
730 channel_type = nla_get_u32(info->attrs[
731 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
732 if (channel_type != NL80211_CHAN_NO_HT &&
733 channel_type != NL80211_CHAN_HT20 &&
734 channel_type != NL80211_CHAN_HT40PLUS &&
735 channel_type != NL80211_CHAN_HT40MINUS)
739 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
741 mutex_lock(&rdev->devlist_mtx);
744 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
747 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
749 mutex_unlock(&rdev->devlist_mtx);
754 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
756 struct cfg80211_registered_device *rdev;
757 struct net_device *netdev;
762 result = get_rdev_dev_by_info_ifindex(info, &rdev, &netdev);
766 result = __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
774 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
776 struct cfg80211_registered_device *rdev;
777 struct net_device *netdev = NULL;
778 struct wireless_dev *wdev;
779 int result, rem_txq_params = 0;
780 struct nlattr *nl_txq_params;
782 u8 retry_short = 0, retry_long = 0;
783 u32 frag_threshold = 0, rts_threshold = 0;
784 u8 coverage_class = 0;
789 * Try to find the wiphy and netdev. Normally this
790 * function shouldn't need the netdev, but this is
791 * done for backward compatibility -- previously
792 * setting the channel was done per wiphy, but now
793 * it is per netdev. Previous userland like hostapd
794 * also passed a netdev to set_wiphy, so that it is
795 * possible to let that go to the right netdev!
797 mutex_lock(&cfg80211_mutex);
799 if (info->attrs[NL80211_ATTR_IFINDEX]) {
800 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
802 netdev = dev_get_by_index(genl_info_net(info), ifindex);
803 if (netdev && netdev->ieee80211_ptr) {
804 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
805 mutex_lock(&rdev->mtx);
811 rdev = __cfg80211_rdev_from_info(info);
813 mutex_unlock(&cfg80211_mutex);
814 result = PTR_ERR(rdev);
821 mutex_lock(&rdev->mtx);
822 } else if (netif_running(netdev) &&
823 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
824 wdev = netdev->ieee80211_ptr;
829 * end workaround code, by now the rdev is available
830 * and locked, and wdev may or may not be NULL.
833 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
834 result = cfg80211_dev_rename(
835 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
837 mutex_unlock(&cfg80211_mutex);
842 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
843 struct ieee80211_txq_params txq_params;
844 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
846 if (!rdev->ops->set_txq_params) {
847 result = -EOPNOTSUPP;
851 nla_for_each_nested(nl_txq_params,
852 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
854 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
855 nla_data(nl_txq_params),
856 nla_len(nl_txq_params),
858 result = parse_txq_params(tb, &txq_params);
862 result = rdev->ops->set_txq_params(&rdev->wiphy,
869 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
870 result = __nl80211_set_channel(rdev, wdev, info);
875 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
876 enum nl80211_tx_power_setting type;
879 if (!rdev->ops->set_tx_power) {
880 result = -EOPNOTSUPP;
884 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
885 type = nla_get_u32(info->attrs[idx]);
887 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
888 (type != NL80211_TX_POWER_AUTOMATIC)) {
893 if (type != NL80211_TX_POWER_AUTOMATIC) {
894 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
895 mbm = nla_get_u32(info->attrs[idx]);
898 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
905 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
906 retry_short = nla_get_u8(
907 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
908 if (retry_short == 0) {
912 changed |= WIPHY_PARAM_RETRY_SHORT;
915 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
916 retry_long = nla_get_u8(
917 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
918 if (retry_long == 0) {
922 changed |= WIPHY_PARAM_RETRY_LONG;
925 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
926 frag_threshold = nla_get_u32(
927 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
928 if (frag_threshold < 256) {
932 if (frag_threshold != (u32) -1) {
934 * Fragments (apart from the last one) are required to
935 * have even length. Make the fragmentation code
936 * simpler by stripping LSB should someone try to use
937 * odd threshold value.
939 frag_threshold &= ~0x1;
941 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
944 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
945 rts_threshold = nla_get_u32(
946 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
947 changed |= WIPHY_PARAM_RTS_THRESHOLD;
950 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
951 coverage_class = nla_get_u8(
952 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
953 changed |= WIPHY_PARAM_COVERAGE_CLASS;
957 u8 old_retry_short, old_retry_long;
958 u32 old_frag_threshold, old_rts_threshold;
959 u8 old_coverage_class;
961 if (!rdev->ops->set_wiphy_params) {
962 result = -EOPNOTSUPP;
966 old_retry_short = rdev->wiphy.retry_short;
967 old_retry_long = rdev->wiphy.retry_long;
968 old_frag_threshold = rdev->wiphy.frag_threshold;
969 old_rts_threshold = rdev->wiphy.rts_threshold;
970 old_coverage_class = rdev->wiphy.coverage_class;
972 if (changed & WIPHY_PARAM_RETRY_SHORT)
973 rdev->wiphy.retry_short = retry_short;
974 if (changed & WIPHY_PARAM_RETRY_LONG)
975 rdev->wiphy.retry_long = retry_long;
976 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
977 rdev->wiphy.frag_threshold = frag_threshold;
978 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
979 rdev->wiphy.rts_threshold = rts_threshold;
980 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
981 rdev->wiphy.coverage_class = coverage_class;
983 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
985 rdev->wiphy.retry_short = old_retry_short;
986 rdev->wiphy.retry_long = old_retry_long;
987 rdev->wiphy.frag_threshold = old_frag_threshold;
988 rdev->wiphy.rts_threshold = old_rts_threshold;
989 rdev->wiphy.coverage_class = old_coverage_class;
994 mutex_unlock(&rdev->mtx);
1003 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1004 struct cfg80211_registered_device *rdev,
1005 struct net_device *dev)
1009 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1013 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1014 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1015 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1016 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1018 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1019 rdev->devlist_generation ^
1020 (cfg80211_rdev_list_generation << 2));
1022 return genlmsg_end(msg, hdr);
1025 genlmsg_cancel(msg, hdr);
1029 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1033 int wp_start = cb->args[0];
1034 int if_start = cb->args[1];
1035 struct cfg80211_registered_device *rdev;
1036 struct wireless_dev *wdev;
1038 mutex_lock(&cfg80211_mutex);
1039 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1040 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1042 if (wp_idx < wp_start) {
1048 mutex_lock(&rdev->devlist_mtx);
1049 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1050 if (if_idx < if_start) {
1054 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1055 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1056 rdev, wdev->netdev) < 0) {
1057 mutex_unlock(&rdev->devlist_mtx);
1062 mutex_unlock(&rdev->devlist_mtx);
1067 mutex_unlock(&cfg80211_mutex);
1069 cb->args[0] = wp_idx;
1070 cb->args[1] = if_idx;
1075 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1077 struct sk_buff *msg;
1078 struct cfg80211_registered_device *dev;
1079 struct net_device *netdev;
1082 err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
1086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1090 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1095 cfg80211_unlock_rdev(dev);
1097 return genlmsg_reply(msg, info);
1103 cfg80211_unlock_rdev(dev);
1107 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1108 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1109 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1110 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1111 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1112 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1115 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1117 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1125 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1126 nla, mntr_flags_policy))
1129 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1131 *mntrflags |= (1<<flag);
1136 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1137 struct net_device *netdev, u8 use_4addr,
1138 enum nl80211_iftype iftype)
1141 if (netdev && netdev->br_port)
1147 case NL80211_IFTYPE_AP_VLAN:
1148 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1151 case NL80211_IFTYPE_STATION:
1152 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1162 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1164 struct cfg80211_registered_device *rdev;
1165 struct vif_params params;
1167 enum nl80211_iftype otype, ntype;
1168 struct net_device *dev;
1169 u32 _flags, *flags = NULL;
1170 bool change = false;
1172 memset(¶ms, 0, sizeof(params));
1176 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1180 otype = ntype = dev->ieee80211_ptr->iftype;
1182 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1183 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1186 if (ntype > NL80211_IFTYPE_MAX) {
1192 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1193 if (ntype != NL80211_IFTYPE_MESH_POINT) {
1197 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1198 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1202 if (info->attrs[NL80211_ATTR_4ADDR]) {
1203 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1205 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1209 params.use_4addr = -1;
1212 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1213 if (ntype != NL80211_IFTYPE_MONITOR) {
1217 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1227 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1231 if (!err && params.use_4addr != -1)
1232 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1236 cfg80211_unlock_rdev(rdev);
1242 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1244 struct cfg80211_registered_device *rdev;
1245 struct vif_params params;
1247 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1250 memset(¶ms, 0, sizeof(params));
1252 if (!info->attrs[NL80211_ATTR_IFNAME])
1255 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1256 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1257 if (type > NL80211_IFTYPE_MAX)
1263 rdev = cfg80211_get_dev_from_info(info);
1265 err = PTR_ERR(rdev);
1269 if (!rdev->ops->add_virtual_intf ||
1270 !(rdev->wiphy.interface_modes & (1 << type))) {
1275 if (type == NL80211_IFTYPE_MESH_POINT &&
1276 info->attrs[NL80211_ATTR_MESH_ID]) {
1277 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1278 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1281 if (info->attrs[NL80211_ATTR_4ADDR]) {
1282 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1283 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1288 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1289 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1291 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
1292 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1293 type, err ? NULL : &flags, ¶ms);
1296 cfg80211_unlock_rdev(rdev);
1302 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1304 struct cfg80211_registered_device *rdev;
1306 struct net_device *dev;
1310 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1314 if (!rdev->ops->del_virtual_intf) {
1319 err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1322 cfg80211_unlock_rdev(rdev);
1329 struct get_key_cookie {
1330 struct sk_buff *msg;
1335 static void get_key_callback(void *c, struct key_params *params)
1338 struct get_key_cookie *cookie = c;
1341 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1342 params->key_len, params->key);
1345 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1346 params->seq_len, params->seq);
1349 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1352 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1354 goto nla_put_failure;
1357 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1358 params->key_len, params->key);
1361 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1362 params->seq_len, params->seq);
1365 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1368 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1370 nla_nest_end(cookie->msg, key);
1377 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1379 struct cfg80211_registered_device *rdev;
1381 struct net_device *dev;
1383 u8 *mac_addr = NULL;
1384 struct get_key_cookie cookie = {
1388 struct sk_buff *msg;
1390 if (info->attrs[NL80211_ATTR_KEY_IDX])
1391 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1396 if (info->attrs[NL80211_ATTR_MAC])
1397 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1401 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1405 if (!rdev->ops->get_key) {
1410 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1416 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1417 NL80211_CMD_NEW_KEY);
1425 cookie.idx = key_idx;
1427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1428 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1430 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1432 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
1433 &cookie, get_key_callback);
1439 goto nla_put_failure;
1441 genlmsg_end(msg, hdr);
1442 err = genlmsg_reply(msg, info);
1450 cfg80211_unlock_rdev(rdev);
1458 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1460 struct cfg80211_registered_device *rdev;
1461 struct key_parse key;
1463 struct net_device *dev;
1464 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1467 err = nl80211_parse_key(info, &key);
1474 /* only support setting default key */
1475 if (!key.def && !key.defmgmt)
1480 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1485 func = rdev->ops->set_default_key;
1487 func = rdev->ops->set_default_mgmt_key;
1494 wdev_lock(dev->ieee80211_ptr);
1495 err = nl80211_key_allowed(dev->ieee80211_ptr);
1497 err = func(&rdev->wiphy, dev, key.idx);
1499 #ifdef CONFIG_CFG80211_WEXT
1501 if (func == rdev->ops->set_default_key)
1502 dev->ieee80211_ptr->wext.default_key = key.idx;
1504 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1507 wdev_unlock(dev->ieee80211_ptr);
1510 cfg80211_unlock_rdev(rdev);
1519 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1521 struct cfg80211_registered_device *rdev;
1523 struct net_device *dev;
1524 struct key_parse key;
1525 u8 *mac_addr = NULL;
1527 err = nl80211_parse_key(info, &key);
1534 if (info->attrs[NL80211_ATTR_MAC])
1535 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1539 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1543 if (!rdev->ops->add_key) {
1548 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
1553 wdev_lock(dev->ieee80211_ptr);
1554 err = nl80211_key_allowed(dev->ieee80211_ptr);
1556 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1558 wdev_unlock(dev->ieee80211_ptr);
1561 cfg80211_unlock_rdev(rdev);
1569 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1571 struct cfg80211_registered_device *rdev;
1573 struct net_device *dev;
1574 u8 *mac_addr = NULL;
1575 struct key_parse key;
1577 err = nl80211_parse_key(info, &key);
1581 if (info->attrs[NL80211_ATTR_MAC])
1582 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1586 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1590 if (!rdev->ops->del_key) {
1595 wdev_lock(dev->ieee80211_ptr);
1596 err = nl80211_key_allowed(dev->ieee80211_ptr);
1598 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
1600 #ifdef CONFIG_CFG80211_WEXT
1602 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1603 dev->ieee80211_ptr->wext.default_key = -1;
1604 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1605 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1608 wdev_unlock(dev->ieee80211_ptr);
1611 cfg80211_unlock_rdev(rdev);
1620 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1622 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1623 struct beacon_parameters *info);
1624 struct cfg80211_registered_device *rdev;
1626 struct net_device *dev;
1627 struct beacon_parameters params;
1630 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1635 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1644 switch (info->genlhdr->cmd) {
1645 case NL80211_CMD_NEW_BEACON:
1646 /* these are required for NEW_BEACON */
1647 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1648 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1649 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1654 call = rdev->ops->add_beacon;
1656 case NL80211_CMD_SET_BEACON:
1657 call = rdev->ops->set_beacon;
1670 memset(¶ms, 0, sizeof(params));
1672 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1674 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1678 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1679 params.dtim_period =
1680 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1684 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1685 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1687 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1691 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1692 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1694 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1703 err = call(&rdev->wiphy, dev, ¶ms);
1706 cfg80211_unlock_rdev(rdev);
1714 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1716 struct cfg80211_registered_device *rdev;
1718 struct net_device *dev;
1722 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1726 if (!rdev->ops->del_beacon) {
1731 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1735 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
1738 cfg80211_unlock_rdev(rdev);
1746 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1747 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1748 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1749 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1750 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
1753 static int parse_station_flags(struct genl_info *info,
1754 struct station_parameters *params)
1756 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1761 * Try parsing the new attribute first so userspace
1762 * can specify both for older kernels.
1764 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1766 struct nl80211_sta_flag_update *sta_flags;
1768 sta_flags = nla_data(nla);
1769 params->sta_flags_mask = sta_flags->mask;
1770 params->sta_flags_set = sta_flags->set;
1771 if ((params->sta_flags_mask |
1772 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1777 /* if present, parse the old attribute */
1779 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
1783 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1784 nla, sta_flags_policy))
1787 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1788 params->sta_flags_mask &= ~1;
1790 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1792 params->sta_flags_set |= (1<<flag);
1797 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1798 int flags, struct net_device *dev,
1799 const u8 *mac_addr, struct station_info *sinfo)
1802 struct nlattr *sinfoattr, *txrate;
1805 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1809 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1810 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1812 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1814 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1816 goto nla_put_failure;
1817 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1818 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1819 sinfo->inactive_time);
1820 if (sinfo->filled & STATION_INFO_RX_BYTES)
1821 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1823 if (sinfo->filled & STATION_INFO_TX_BYTES)
1824 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1826 if (sinfo->filled & STATION_INFO_LLID)
1827 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1829 if (sinfo->filled & STATION_INFO_PLID)
1830 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1832 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1833 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1834 sinfo->plink_state);
1835 if (sinfo->filled & STATION_INFO_SIGNAL)
1836 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1838 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1839 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1841 goto nla_put_failure;
1843 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1844 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
1846 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1848 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1849 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1851 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1852 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1853 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1854 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1856 nla_nest_end(msg, txrate);
1858 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1859 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1861 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1862 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1864 nla_nest_end(msg, sinfoattr);
1866 return genlmsg_end(msg, hdr);
1869 genlmsg_cancel(msg, hdr);
1873 static int nl80211_dump_station(struct sk_buff *skb,
1874 struct netlink_callback *cb)
1876 struct station_info sinfo;
1877 struct cfg80211_registered_device *dev;
1878 struct net_device *netdev;
1879 u8 mac_addr[ETH_ALEN];
1880 int ifidx = cb->args[0];
1881 int sta_idx = cb->args[1];
1885 ifidx = nl80211_get_ifidx(cb);
1891 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1897 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
1903 if (!dev->ops->dump_station) {
1909 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1916 if (nl80211_send_station(skb,
1917 NETLINK_CB(cb->skb).pid,
1918 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1928 cb->args[1] = sta_idx;
1931 cfg80211_unlock_rdev(dev);
1938 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1940 struct cfg80211_registered_device *rdev;
1942 struct net_device *dev;
1943 struct station_info sinfo;
1944 struct sk_buff *msg;
1945 u8 *mac_addr = NULL;
1947 memset(&sinfo, 0, sizeof(sinfo));
1949 if (!info->attrs[NL80211_ATTR_MAC])
1952 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1956 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1960 if (!rdev->ops->get_station) {
1965 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
1969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1973 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1974 dev, mac_addr, &sinfo) < 0)
1977 err = genlmsg_reply(msg, info);
1983 cfg80211_unlock_rdev(rdev);
1992 * Get vlan interface making sure it is running and on the right wiphy.
1994 static int get_vlan(struct genl_info *info,
1995 struct cfg80211_registered_device *rdev,
1996 struct net_device **vlan)
1998 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2002 *vlan = dev_get_by_index(genl_info_net(info),
2003 nla_get_u32(vlanattr));
2006 if (!(*vlan)->ieee80211_ptr)
2008 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2010 if (!netif_running(*vlan))
2016 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2018 struct cfg80211_registered_device *rdev;
2020 struct net_device *dev;
2021 struct station_parameters params;
2022 u8 *mac_addr = NULL;
2024 memset(¶ms, 0, sizeof(params));
2026 params.listen_interval = -1;
2028 if (info->attrs[NL80211_ATTR_STA_AID])
2031 if (!info->attrs[NL80211_ATTR_MAC])
2034 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2036 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2037 params.supported_rates =
2038 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2039 params.supported_rates_len =
2040 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2043 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2044 params.listen_interval =
2045 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2047 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2049 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2051 if (parse_station_flags(info, ¶ms))
2054 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2055 params.plink_action =
2056 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2060 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2064 err = get_vlan(info, rdev, ¶ms.vlan);
2068 /* validate settings */
2071 switch (dev->ieee80211_ptr->iftype) {
2072 case NL80211_IFTYPE_AP:
2073 case NL80211_IFTYPE_AP_VLAN:
2074 /* disallow mesh-specific things */
2075 if (params.plink_action)
2078 case NL80211_IFTYPE_STATION:
2079 /* disallow everything but AUTHORIZED flag */
2080 if (params.plink_action)
2084 if (params.supported_rates)
2088 if (params.listen_interval >= 0)
2090 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2093 case NL80211_IFTYPE_MESH_POINT:
2094 /* disallow things mesh doesn't support */
2099 if (params.listen_interval >= 0)
2101 if (params.supported_rates)
2103 if (params.sta_flags_mask)
2113 if (!rdev->ops->change_station) {
2118 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2122 dev_put(params.vlan);
2123 cfg80211_unlock_rdev(rdev);
2131 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2133 struct cfg80211_registered_device *rdev;
2135 struct net_device *dev;
2136 struct station_parameters params;
2137 u8 *mac_addr = NULL;
2139 memset(¶ms, 0, sizeof(params));
2141 if (!info->attrs[NL80211_ATTR_MAC])
2144 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2147 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2150 if (!info->attrs[NL80211_ATTR_STA_AID])
2153 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2154 params.supported_rates =
2155 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2156 params.supported_rates_len =
2157 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2158 params.listen_interval =
2159 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2161 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2162 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2165 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2167 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2169 if (parse_station_flags(info, ¶ms))
2174 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2178 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2179 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
2184 err = get_vlan(info, rdev, ¶ms.vlan);
2188 /* validate settings */
2191 if (!rdev->ops->add_station) {
2196 if (!netif_running(dev)) {
2201 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2205 dev_put(params.vlan);
2206 cfg80211_unlock_rdev(rdev);
2214 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2216 struct cfg80211_registered_device *rdev;
2218 struct net_device *dev;
2219 u8 *mac_addr = NULL;
2221 if (info->attrs[NL80211_ATTR_MAC])
2222 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2226 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2230 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2231 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2232 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2237 if (!rdev->ops->del_station) {
2242 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2245 cfg80211_unlock_rdev(rdev);
2253 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2254 int flags, struct net_device *dev,
2255 u8 *dst, u8 *next_hop,
2256 struct mpath_info *pinfo)
2259 struct nlattr *pinfoattr;
2261 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2265 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2266 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2267 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2269 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2271 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2273 goto nla_put_failure;
2274 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2275 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2277 if (pinfo->filled & MPATH_INFO_SN)
2278 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2280 if (pinfo->filled & MPATH_INFO_METRIC)
2281 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2283 if (pinfo->filled & MPATH_INFO_EXPTIME)
2284 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2286 if (pinfo->filled & MPATH_INFO_FLAGS)
2287 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2289 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2290 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2291 pinfo->discovery_timeout);
2292 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2293 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2294 pinfo->discovery_retries);
2296 nla_nest_end(msg, pinfoattr);
2298 return genlmsg_end(msg, hdr);
2301 genlmsg_cancel(msg, hdr);
2305 static int nl80211_dump_mpath(struct sk_buff *skb,
2306 struct netlink_callback *cb)
2308 struct mpath_info pinfo;
2309 struct cfg80211_registered_device *dev;
2310 struct net_device *netdev;
2312 u8 next_hop[ETH_ALEN];
2313 int ifidx = cb->args[0];
2314 int path_idx = cb->args[1];
2318 ifidx = nl80211_get_ifidx(cb);
2324 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
2330 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
2336 if (!dev->ops->dump_mpath) {
2341 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2347 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2348 dst, next_hop, &pinfo);
2354 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2355 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2356 netdev, dst, next_hop,
2365 cb->args[1] = path_idx;
2368 cfg80211_unlock_rdev(dev);
2375 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2377 struct cfg80211_registered_device *rdev;
2379 struct net_device *dev;
2380 struct mpath_info pinfo;
2381 struct sk_buff *msg;
2383 u8 next_hop[ETH_ALEN];
2385 memset(&pinfo, 0, sizeof(pinfo));
2387 if (!info->attrs[NL80211_ATTR_MAC])
2390 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2394 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2398 if (!rdev->ops->get_mpath) {
2403 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2408 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2416 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2417 dev, dst, next_hop, &pinfo) < 0)
2420 err = genlmsg_reply(msg, info);
2426 cfg80211_unlock_rdev(rdev);
2434 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2436 struct cfg80211_registered_device *rdev;
2438 struct net_device *dev;
2440 u8 *next_hop = NULL;
2442 if (!info->attrs[NL80211_ATTR_MAC])
2445 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2448 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2449 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2453 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2457 if (!rdev->ops->change_mpath) {
2462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2467 if (!netif_running(dev)) {
2472 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2475 cfg80211_unlock_rdev(rdev);
2482 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2484 struct cfg80211_registered_device *rdev;
2486 struct net_device *dev;
2488 u8 *next_hop = NULL;
2490 if (!info->attrs[NL80211_ATTR_MAC])
2493 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2496 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2497 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2501 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2505 if (!rdev->ops->add_mpath) {
2510 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2515 if (!netif_running(dev)) {
2520 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2523 cfg80211_unlock_rdev(rdev);
2531 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2533 struct cfg80211_registered_device *rdev;
2535 struct net_device *dev;
2538 if (info->attrs[NL80211_ATTR_MAC])
2539 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2543 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2547 if (!rdev->ops->del_mpath) {
2552 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2555 cfg80211_unlock_rdev(rdev);
2563 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2565 struct cfg80211_registered_device *rdev;
2567 struct net_device *dev;
2568 struct bss_parameters params;
2570 memset(¶ms, 0, sizeof(params));
2571 /* default to not changing parameters */
2572 params.use_cts_prot = -1;
2573 params.use_short_preamble = -1;
2574 params.use_short_slot_time = -1;
2575 params.ap_isolate = -1;
2577 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2578 params.use_cts_prot =
2579 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2580 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2581 params.use_short_preamble =
2582 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2583 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2584 params.use_short_slot_time =
2585 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2586 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2587 params.basic_rates =
2588 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2589 params.basic_rates_len =
2590 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2592 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2593 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2597 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2601 if (!rdev->ops->change_bss) {
2606 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2611 err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2614 cfg80211_unlock_rdev(rdev);
2622 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2623 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2624 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2625 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2626 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2627 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2628 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2631 static int parse_reg_rule(struct nlattr *tb[],
2632 struct ieee80211_reg_rule *reg_rule)
2634 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2635 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2637 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2639 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2641 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2643 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2645 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2648 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2650 freq_range->start_freq_khz =
2651 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2652 freq_range->end_freq_khz =
2653 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2654 freq_range->max_bandwidth_khz =
2655 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2657 power_rule->max_eirp =
2658 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2660 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2661 power_rule->max_antenna_gain =
2662 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2667 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2673 * You should only get this when cfg80211 hasn't yet initialized
2674 * completely when built-in to the kernel right between the time
2675 * window between nl80211_init() and regulatory_init(), if that is
2678 mutex_lock(&cfg80211_mutex);
2679 if (unlikely(!cfg80211_regdomain)) {
2680 mutex_unlock(&cfg80211_mutex);
2681 return -EINPROGRESS;
2683 mutex_unlock(&cfg80211_mutex);
2685 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2688 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2690 r = regulatory_hint_user(data);
2695 static int nl80211_get_mesh_params(struct sk_buff *skb,
2696 struct genl_info *info)
2698 struct cfg80211_registered_device *rdev;
2699 struct mesh_config cur_params;
2701 struct net_device *dev;
2703 struct nlattr *pinfoattr;
2704 struct sk_buff *msg;
2708 /* Look up our device */
2709 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2713 if (!rdev->ops->get_mesh_params) {
2718 /* Get the mesh params */
2719 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
2723 /* Draw up a netlink message to send back */
2724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2729 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2730 NL80211_CMD_GET_MESH_PARAMS);
2732 goto nla_put_failure;
2733 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2735 goto nla_put_failure;
2736 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2737 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2738 cur_params.dot11MeshRetryTimeout);
2739 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2740 cur_params.dot11MeshConfirmTimeout);
2741 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2742 cur_params.dot11MeshHoldingTimeout);
2743 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2744 cur_params.dot11MeshMaxPeerLinks);
2745 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2746 cur_params.dot11MeshMaxRetries);
2747 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2748 cur_params.dot11MeshTTL);
2749 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2750 cur_params.auto_open_plinks);
2751 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2752 cur_params.dot11MeshHWMPmaxPREQretries);
2753 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2754 cur_params.path_refresh_time);
2755 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2756 cur_params.min_discovery_timeout);
2757 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2758 cur_params.dot11MeshHWMPactivePathTimeout);
2759 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2760 cur_params.dot11MeshHWMPpreqMinInterval);
2761 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2762 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2763 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2764 cur_params.dot11MeshHWMPRootMode);
2765 nla_nest_end(msg, pinfoattr);
2766 genlmsg_end(msg, hdr);
2767 err = genlmsg_reply(msg, info);
2771 genlmsg_cancel(msg, hdr);
2775 cfg80211_unlock_rdev(rdev);
2783 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2785 if (table[attr_num]) {\
2786 cfg.param = nla_fn(table[attr_num]); \
2787 mask |= (1 << (attr_num - 1)); \
2791 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
2792 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2793 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2794 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2795 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2796 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2797 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2798 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2800 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2801 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2802 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2803 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2804 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2805 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2808 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2812 struct cfg80211_registered_device *rdev;
2813 struct net_device *dev;
2814 struct mesh_config cfg;
2815 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2816 struct nlattr *parent_attr;
2818 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2821 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2822 parent_attr, nl80211_meshconf_params_policy))
2827 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2831 if (!rdev->ops->set_mesh_params) {
2836 /* This makes sure that there aren't more than 32 mesh config
2837 * parameters (otherwise our bitfield scheme would not work.) */
2838 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2840 /* Fill in the params struct */
2842 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2843 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2845 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2846 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2847 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2849 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2850 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2851 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2852 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2853 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2855 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2856 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2857 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2859 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2860 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2862 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2865 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2868 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2871 dot11MeshHWMPnetDiameterTraversalTime,
2872 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2875 dot11MeshHWMPRootMode, mask,
2876 NL80211_MESHCONF_HWMP_ROOTMODE,
2880 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
2884 cfg80211_unlock_rdev(rdev);
2892 #undef FILL_IN_MESH_PARAM_IF_SET
2894 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2896 struct sk_buff *msg;
2898 struct nlattr *nl_reg_rules;
2902 mutex_lock(&cfg80211_mutex);
2904 if (!cfg80211_regdomain)
2907 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2913 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2914 NL80211_CMD_GET_REG);
2916 goto nla_put_failure;
2918 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2919 cfg80211_regdomain->alpha2);
2921 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2923 goto nla_put_failure;
2925 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2926 struct nlattr *nl_reg_rule;
2927 const struct ieee80211_reg_rule *reg_rule;
2928 const struct ieee80211_freq_range *freq_range;
2929 const struct ieee80211_power_rule *power_rule;
2931 reg_rule = &cfg80211_regdomain->reg_rules[i];
2932 freq_range = ®_rule->freq_range;
2933 power_rule = ®_rule->power_rule;
2935 nl_reg_rule = nla_nest_start(msg, i);
2937 goto nla_put_failure;
2939 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2941 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2942 freq_range->start_freq_khz);
2943 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2944 freq_range->end_freq_khz);
2945 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2946 freq_range->max_bandwidth_khz);
2947 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2948 power_rule->max_antenna_gain);
2949 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2950 power_rule->max_eirp);
2952 nla_nest_end(msg, nl_reg_rule);
2955 nla_nest_end(msg, nl_reg_rules);
2957 genlmsg_end(msg, hdr);
2958 err = genlmsg_reply(msg, info);
2962 genlmsg_cancel(msg, hdr);
2965 mutex_unlock(&cfg80211_mutex);
2969 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2971 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2972 struct nlattr *nl_reg_rule;
2973 char *alpha2 = NULL;
2974 int rem_reg_rules = 0, r = 0;
2975 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2976 struct ieee80211_regdomain *rd = NULL;
2978 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2981 if (!info->attrs[NL80211_ATTR_REG_RULES])
2984 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2986 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2989 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2993 mutex_lock(&cfg80211_mutex);
2995 if (!reg_is_valid_request(alpha2)) {
3000 size_of_regd = sizeof(struct ieee80211_regdomain) +
3001 (num_rules * sizeof(struct ieee80211_reg_rule));
3003 rd = kzalloc(size_of_regd, GFP_KERNEL);
3009 rd->n_reg_rules = num_rules;
3010 rd->alpha2[0] = alpha2[0];
3011 rd->alpha2[1] = alpha2[1];
3013 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3015 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3016 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3018 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3024 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3030 BUG_ON(rule_idx != num_rules);
3034 mutex_unlock(&cfg80211_mutex);
3039 mutex_unlock(&cfg80211_mutex);
3044 static int validate_scan_freqs(struct nlattr *freqs)
3046 struct nlattr *attr1, *attr2;
3047 int n_channels = 0, tmp1, tmp2;
3049 nla_for_each_nested(attr1, freqs, tmp1) {
3052 * Some hardware has a limited channel list for
3053 * scanning, and it is pretty much nonsensical
3054 * to scan for a channel twice, so disallow that
3055 * and don't require drivers to check that the
3056 * channel list they get isn't longer than what
3057 * they can scan, as long as they can scan all
3058 * the channels they registered at once.
3060 nla_for_each_nested(attr2, freqs, tmp2)
3061 if (attr1 != attr2 &&
3062 nla_get_u32(attr1) == nla_get_u32(attr2))
3069 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3071 struct cfg80211_registered_device *rdev;
3072 struct net_device *dev;
3073 struct cfg80211_scan_request *request;
3074 struct cfg80211_ssid *ssid;
3075 struct ieee80211_channel *channel;
3076 struct nlattr *attr;
3077 struct wiphy *wiphy;
3078 int err, tmp, n_ssids = 0, n_channels, i;
3079 enum ieee80211_band band;
3082 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3087 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3091 wiphy = &rdev->wiphy;
3093 if (!rdev->ops->scan) {
3098 if (!netif_running(dev)) {
3103 if (rdev->scan_req) {
3108 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3109 n_channels = validate_scan_freqs(
3110 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3118 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3119 if (wiphy->bands[band])
3120 n_channels += wiphy->bands[band]->n_channels;
3123 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3124 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3127 if (n_ssids > wiphy->max_scan_ssids) {
3132 if (info->attrs[NL80211_ATTR_IE])
3133 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3137 if (ie_len > wiphy->max_scan_ie_len) {
3142 request = kzalloc(sizeof(*request)
3143 + sizeof(*ssid) * n_ssids
3144 + sizeof(channel) * n_channels
3145 + ie_len, GFP_KERNEL);
3152 request->ssids = (void *)&request->channels[n_channels];
3153 request->n_ssids = n_ssids;
3156 request->ie = (void *)(request->ssids + n_ssids);
3158 request->ie = (void *)(request->channels + n_channels);
3162 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3163 /* user specified, bail out if channel not found */
3164 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3165 struct ieee80211_channel *chan;
3167 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3174 /* ignore disabled channels */
3175 if (chan->flags & IEEE80211_CHAN_DISABLED)
3178 request->channels[i] = chan;
3183 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3185 if (!wiphy->bands[band])
3187 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3188 struct ieee80211_channel *chan;
3190 chan = &wiphy->bands[band]->channels[j];
3192 if (chan->flags & IEEE80211_CHAN_DISABLED)
3195 request->channels[i] = chan;
3206 request->n_channels = i;
3209 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3210 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3211 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3215 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3216 request->ssids[i].ssid_len = nla_len(attr);
3221 if (info->attrs[NL80211_ATTR_IE]) {
3222 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3223 memcpy((void *)request->ie,
3224 nla_data(info->attrs[NL80211_ATTR_IE]),
3229 request->wiphy = &rdev->wiphy;
3231 rdev->scan_req = request;
3232 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3235 nl80211_send_scan_start(rdev, dev);
3241 rdev->scan_req = NULL;
3245 cfg80211_unlock_rdev(rdev);
3253 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3254 struct cfg80211_registered_device *rdev,
3255 struct wireless_dev *wdev,
3256 struct cfg80211_internal_bss *intbss)
3258 struct cfg80211_bss *res = &intbss->pub;
3263 ASSERT_WDEV_LOCK(wdev);
3265 hdr = nl80211hdr_put(msg, pid, seq, flags,
3266 NL80211_CMD_NEW_SCAN_RESULTS);
3270 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3273 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3275 goto nla_put_failure;
3276 if (!is_zero_ether_addr(res->bssid))
3277 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3278 if (res->information_elements && res->len_information_elements)
3279 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3280 res->len_information_elements,
3281 res->information_elements);
3282 if (res->beacon_ies && res->len_beacon_ies &&
3283 res->beacon_ies != res->information_elements)
3284 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3285 res->len_beacon_ies, res->beacon_ies);
3287 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3288 if (res->beacon_interval)
3289 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3290 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3291 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3292 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3293 jiffies_to_msecs(jiffies - intbss->ts));
3295 switch (rdev->wiphy.signal_type) {
3296 case CFG80211_SIGNAL_TYPE_MBM:
3297 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3299 case CFG80211_SIGNAL_TYPE_UNSPEC:
3300 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3306 switch (wdev->iftype) {
3307 case NL80211_IFTYPE_STATION:
3308 if (intbss == wdev->current_bss)
3309 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3310 NL80211_BSS_STATUS_ASSOCIATED);
3311 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3312 if (intbss != wdev->auth_bsses[i])
3314 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3315 NL80211_BSS_STATUS_AUTHENTICATED);
3319 case NL80211_IFTYPE_ADHOC:
3320 if (intbss == wdev->current_bss)
3321 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3322 NL80211_BSS_STATUS_IBSS_JOINED);
3328 nla_nest_end(msg, bss);
3330 return genlmsg_end(msg, hdr);
3333 genlmsg_cancel(msg, hdr);
3337 static int nl80211_dump_scan(struct sk_buff *skb,
3338 struct netlink_callback *cb)
3340 struct cfg80211_registered_device *rdev;
3341 struct net_device *dev;
3342 struct cfg80211_internal_bss *scan;
3343 struct wireless_dev *wdev;
3344 int ifidx = cb->args[0];
3345 int start = cb->args[1], idx = 0;
3349 ifidx = nl80211_get_ifidx(cb);
3352 cb->args[0] = ifidx;
3354 dev = dev_get_by_index(sock_net(skb->sk), ifidx);
3358 rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3360 err = PTR_ERR(rdev);
3361 goto out_put_netdev;
3364 wdev = dev->ieee80211_ptr;
3367 spin_lock_bh(&rdev->bss_lock);
3368 cfg80211_bss_expire(rdev);
3370 list_for_each_entry(scan, &rdev->bss_list, list) {
3373 if (nl80211_send_bss(skb,
3374 NETLINK_CB(cb->skb).pid,
3375 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3376 rdev, wdev, scan) < 0) {
3383 spin_unlock_bh(&rdev->bss_lock);
3388 cfg80211_unlock_rdev(rdev);
3395 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3396 int flags, struct net_device *dev,
3397 struct survey_info *survey)
3400 struct nlattr *infoattr;
3402 /* Survey without a channel doesn't make sense */
3403 if (!survey->channel)
3406 hdr = nl80211hdr_put(msg, pid, seq, flags,
3407 NL80211_CMD_NEW_SURVEY_RESULTS);
3411 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3413 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3415 goto nla_put_failure;
3417 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3418 survey->channel->center_freq);
3419 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3420 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3423 nla_nest_end(msg, infoattr);
3425 return genlmsg_end(msg, hdr);
3428 genlmsg_cancel(msg, hdr);
3432 static int nl80211_dump_survey(struct sk_buff *skb,
3433 struct netlink_callback *cb)
3435 struct survey_info survey;
3436 struct cfg80211_registered_device *dev;
3437 struct net_device *netdev;
3438 int ifidx = cb->args[0];
3439 int survey_idx = cb->args[1];
3443 ifidx = nl80211_get_ifidx(cb);
3446 cb->args[0] = ifidx;
3450 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3456 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3462 if (!dev->ops->dump_survey) {
3468 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3475 if (nl80211_send_survey(skb,
3476 NETLINK_CB(cb->skb).pid,
3477 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3485 cb->args[1] = survey_idx;
3488 cfg80211_unlock_rdev(dev);
3495 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3497 return auth_type <= NL80211_AUTHTYPE_MAX;
3500 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3502 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3503 NL80211_WPA_VERSION_2));
3506 static bool nl80211_valid_akm_suite(u32 akm)
3508 return akm == WLAN_AKM_SUITE_8021X ||
3509 akm == WLAN_AKM_SUITE_PSK;
3512 static bool nl80211_valid_cipher_suite(u32 cipher)
3514 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3515 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3516 cipher == WLAN_CIPHER_SUITE_TKIP ||
3517 cipher == WLAN_CIPHER_SUITE_CCMP ||
3518 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3522 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3524 struct cfg80211_registered_device *rdev;
3525 struct net_device *dev;
3526 struct ieee80211_channel *chan;
3527 const u8 *bssid, *ssid, *ie = NULL;
3528 int err, ssid_len, ie_len = 0;
3529 enum nl80211_auth_type auth_type;
3530 struct key_parse key;
3531 bool local_state_change;
3533 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3536 if (!info->attrs[NL80211_ATTR_MAC])
3539 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3542 if (!info->attrs[NL80211_ATTR_SSID])
3545 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3548 err = nl80211_parse_key(info, &key);
3553 if (!key.p.key || !key.p.key_len)
3555 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3556 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3557 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3558 key.p.key_len != WLAN_KEY_LEN_WEP104))
3569 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3573 if (!rdev->ops->auth) {
3578 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3583 if (!netif_running(dev)) {
3588 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3589 chan = ieee80211_get_channel(&rdev->wiphy,
3590 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3591 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3596 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3597 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3599 if (info->attrs[NL80211_ATTR_IE]) {
3600 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3601 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3604 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3605 if (!nl80211_valid_auth_type(auth_type)) {
3610 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3612 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3613 ssid, ssid_len, ie, ie_len,
3614 key.p.key, key.p.key_len, key.idx,
3615 local_state_change);
3618 cfg80211_unlock_rdev(rdev);
3625 static int nl80211_crypto_settings(struct genl_info *info,
3626 struct cfg80211_crypto_settings *settings,
3629 memset(settings, 0, sizeof(*settings));
3631 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3633 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3637 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3638 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3639 settings->n_ciphers_pairwise = len / sizeof(u32);
3641 if (len % sizeof(u32))
3644 if (settings->n_ciphers_pairwise > cipher_limit)
3647 memcpy(settings->ciphers_pairwise, data, len);
3649 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3650 if (!nl80211_valid_cipher_suite(
3651 settings->ciphers_pairwise[i]))
3655 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3656 settings->cipher_group =
3657 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3658 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3662 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3663 settings->wpa_versions =
3664 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3665 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3669 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3673 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3674 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3675 settings->n_akm_suites = len / sizeof(u32);
3677 if (len % sizeof(u32))
3680 memcpy(settings->akm_suites, data, len);
3682 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3683 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3690 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3692 struct cfg80211_registered_device *rdev;
3693 struct net_device *dev;
3694 struct cfg80211_crypto_settings crypto;
3695 struct ieee80211_channel *chan;
3696 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
3697 int err, ssid_len, ie_len = 0;
3698 bool use_mfp = false;
3700 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3703 if (!info->attrs[NL80211_ATTR_MAC] ||
3704 !info->attrs[NL80211_ATTR_SSID] ||
3705 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
3710 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3714 if (!rdev->ops->assoc) {
3719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3724 if (!netif_running(dev)) {
3729 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3731 chan = ieee80211_get_channel(&rdev->wiphy,
3732 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3733 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3738 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3739 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3741 if (info->attrs[NL80211_ATTR_IE]) {
3742 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3743 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3746 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3747 enum nl80211_mfp mfp =
3748 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3749 if (mfp == NL80211_MFP_REQUIRED)
3751 else if (mfp != NL80211_MFP_NO) {
3757 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3758 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3760 err = nl80211_crypto_settings(info, &crypto, 1);
3762 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3763 ssid, ssid_len, ie, ie_len, use_mfp,
3767 cfg80211_unlock_rdev(rdev);
3774 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3776 struct cfg80211_registered_device *rdev;
3777 struct net_device *dev;
3778 const u8 *ie = NULL, *bssid;
3779 int err, ie_len = 0;
3781 bool local_state_change;
3783 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3786 if (!info->attrs[NL80211_ATTR_MAC])
3789 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3794 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3798 if (!rdev->ops->deauth) {
3803 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3808 if (!netif_running(dev)) {
3813 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3815 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3816 if (reason_code == 0) {
3817 /* Reason Code 0 is reserved */
3822 if (info->attrs[NL80211_ATTR_IE]) {
3823 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3824 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3827 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3829 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3830 local_state_change);
3833 cfg80211_unlock_rdev(rdev);
3840 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3842 struct cfg80211_registered_device *rdev;
3843 struct net_device *dev;
3844 const u8 *ie = NULL, *bssid;
3845 int err, ie_len = 0;
3847 bool local_state_change;
3849 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3852 if (!info->attrs[NL80211_ATTR_MAC])
3855 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3860 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3864 if (!rdev->ops->disassoc) {
3869 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3874 if (!netif_running(dev)) {
3879 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3881 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3882 if (reason_code == 0) {
3883 /* Reason Code 0 is reserved */
3888 if (info->attrs[NL80211_ATTR_IE]) {
3889 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3890 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3893 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3895 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3896 local_state_change);
3899 cfg80211_unlock_rdev(rdev);
3906 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3908 struct cfg80211_registered_device *rdev;
3909 struct net_device *dev;
3910 struct cfg80211_ibss_params ibss;
3911 struct wiphy *wiphy;
3912 struct cfg80211_cached_keys *connkeys = NULL;
3915 memset(&ibss, 0, sizeof(ibss));
3917 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3920 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3921 !info->attrs[NL80211_ATTR_SSID] ||
3922 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3925 ibss.beacon_interval = 100;
3927 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3928 ibss.beacon_interval =
3929 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3930 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3936 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3940 if (!rdev->ops->join_ibss) {
3945 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3950 if (!netif_running(dev)) {
3955 wiphy = &rdev->wiphy;
3957 if (info->attrs[NL80211_ATTR_MAC])
3958 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3959 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3960 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3962 if (info->attrs[NL80211_ATTR_IE]) {
3963 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3964 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3967 ibss.channel = ieee80211_get_channel(wiphy,
3968 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3969 if (!ibss.channel ||
3970 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3971 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3976 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3977 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3979 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3980 connkeys = nl80211_parse_connkeys(rdev,
3981 info->attrs[NL80211_ATTR_KEYS]);
3982 if (IS_ERR(connkeys)) {
3983 err = PTR_ERR(connkeys);
3989 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3991 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3993 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3994 struct ieee80211_supported_band *sband =
3995 wiphy->bands[ibss.channel->band];
4003 for (i = 0; i < n_rates; i++) {
4004 int rate = (rates[i] & 0x7f) * 5;
4007 for (j = 0; j < sband->n_bitrates; j++) {
4008 if (sband->bitrates[j].bitrate == rate) {
4010 ibss.basic_rates |= BIT(j);
4021 * If no rates were explicitly configured,
4022 * use the mandatory rate set for 11b or
4023 * 11a for maximum compatibility.
4025 struct ieee80211_supported_band *sband =
4026 wiphy->bands[ibss.channel->band];
4028 u32 flag = ibss.channel->band == IEEE80211_BAND_5GHZ ?
4029 IEEE80211_RATE_MANDATORY_A :
4030 IEEE80211_RATE_MANDATORY_B;
4032 for (j = 0; j < sband->n_bitrates; j++) {
4033 if (sband->bitrates[j].flags & flag)
4034 ibss.basic_rates |= BIT(j);
4038 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4041 cfg80211_unlock_rdev(rdev);
4050 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4052 struct cfg80211_registered_device *rdev;
4053 struct net_device *dev;
4058 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4062 if (!rdev->ops->leave_ibss) {
4067 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
4072 if (!netif_running(dev)) {
4077 err = cfg80211_leave_ibss(rdev, dev, false);
4080 cfg80211_unlock_rdev(rdev);
4087 #ifdef CONFIG_NL80211_TESTMODE
4088 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4092 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4094 struct cfg80211_registered_device *rdev;
4097 if (!info->attrs[NL80211_ATTR_TESTDATA])
4102 rdev = cfg80211_get_dev_from_info(info);
4104 err = PTR_ERR(rdev);
4109 if (rdev->ops->testmode_cmd) {
4110 rdev->testmode_info = info;
4111 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4112 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4113 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4114 rdev->testmode_info = NULL;
4117 cfg80211_unlock_rdev(rdev);
4124 static struct sk_buff *
4125 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4126 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4128 struct sk_buff *skb;
4130 struct nlattr *data;
4132 skb = nlmsg_new(approxlen + 100, gfp);
4136 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4142 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4143 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4145 ((void **)skb->cb)[0] = rdev;
4146 ((void **)skb->cb)[1] = hdr;
4147 ((void **)skb->cb)[2] = data;
4156 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4159 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4161 if (WARN_ON(!rdev->testmode_info))
4164 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4165 rdev->testmode_info->snd_pid,
4166 rdev->testmode_info->snd_seq,
4169 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4171 int cfg80211_testmode_reply(struct sk_buff *skb)
4173 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4174 void *hdr = ((void **)skb->cb)[1];
4175 struct nlattr *data = ((void **)skb->cb)[2];
4177 if (WARN_ON(!rdev->testmode_info)) {
4182 nla_nest_end(skb, data);
4183 genlmsg_end(skb, hdr);
4184 return genlmsg_reply(skb, rdev->testmode_info);
4186 EXPORT_SYMBOL(cfg80211_testmode_reply);
4188 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4189 int approxlen, gfp_t gfp)
4191 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4193 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4195 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4197 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4199 void *hdr = ((void **)skb->cb)[1];
4200 struct nlattr *data = ((void **)skb->cb)[2];
4202 nla_nest_end(skb, data);
4203 genlmsg_end(skb, hdr);
4204 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4206 EXPORT_SYMBOL(cfg80211_testmode_event);
4209 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4211 struct cfg80211_registered_device *rdev;
4212 struct net_device *dev;
4213 struct cfg80211_connect_params connect;
4214 struct wiphy *wiphy;
4215 struct cfg80211_cached_keys *connkeys = NULL;
4218 memset(&connect, 0, sizeof(connect));
4220 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4223 if (!info->attrs[NL80211_ATTR_SSID] ||
4224 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4227 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4229 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4230 if (!nl80211_valid_auth_type(connect.auth_type))
4233 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4235 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4237 err = nl80211_crypto_settings(info, &connect.crypto,
4238 NL80211_MAX_NR_CIPHER_SUITES);
4243 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4252 if (!netif_running(dev)) {
4257 wiphy = &rdev->wiphy;
4259 if (info->attrs[NL80211_ATTR_MAC])
4260 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4261 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4262 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4264 if (info->attrs[NL80211_ATTR_IE]) {
4265 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4266 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4269 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4271 ieee80211_get_channel(wiphy,
4272 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4273 if (!connect.channel ||
4274 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
4280 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4281 connkeys = nl80211_parse_connkeys(rdev,
4282 info->attrs[NL80211_ATTR_KEYS]);
4283 if (IS_ERR(connkeys)) {
4284 err = PTR_ERR(connkeys);
4290 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4293 cfg80211_unlock_rdev(rdev);
4302 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4304 struct cfg80211_registered_device *rdev;
4305 struct net_device *dev;
4309 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4310 reason = WLAN_REASON_DEAUTH_LEAVING;
4312 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4319 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4328 if (!netif_running(dev)) {
4333 err = cfg80211_disconnect(rdev, dev, reason, true);
4336 cfg80211_unlock_rdev(rdev);
4343 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4345 struct cfg80211_registered_device *rdev;
4350 if (!info->attrs[NL80211_ATTR_PID])
4353 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4357 rdev = cfg80211_get_dev_from_info(info);
4359 err = PTR_ERR(rdev);
4363 net = get_net_ns_by_pid(pid);
4371 /* check if anything to do */
4372 if (net_eq(wiphy_net(&rdev->wiphy), net))
4375 err = cfg80211_switch_netns(rdev, net);
4379 cfg80211_unlock_rdev(rdev);
4385 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4387 struct cfg80211_registered_device *rdev;
4388 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4389 struct cfg80211_pmksa *pmksa) = NULL;
4391 struct net_device *dev;
4392 struct cfg80211_pmksa pmksa;
4394 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4396 if (!info->attrs[NL80211_ATTR_MAC])
4399 if (!info->attrs[NL80211_ATTR_PMKID])
4404 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4408 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4409 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4416 switch (info->genlhdr->cmd) {
4417 case NL80211_CMD_SET_PMKSA:
4418 rdev_ops = rdev->ops->set_pmksa;
4420 case NL80211_CMD_DEL_PMKSA:
4421 rdev_ops = rdev->ops->del_pmksa;
4433 err = rdev_ops(&rdev->wiphy, dev, &pmksa);
4436 cfg80211_unlock_rdev(rdev);
4444 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4446 struct cfg80211_registered_device *rdev;
4448 struct net_device *dev;
4452 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4456 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4461 if (!rdev->ops->flush_pmksa) {
4466 err = rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4469 cfg80211_unlock_rdev(rdev);
4478 static int nl80211_remain_on_channel(struct sk_buff *skb,
4479 struct genl_info *info)
4481 struct cfg80211_registered_device *rdev;
4482 struct net_device *dev;
4483 struct ieee80211_channel *chan;
4484 struct sk_buff *msg;
4487 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4491 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4492 !info->attrs[NL80211_ATTR_DURATION])
4495 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4498 * We should be on that channel for at least one jiffie,
4499 * and more than 5 seconds seems excessive.
4501 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4506 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4510 if (!rdev->ops->remain_on_channel) {
4515 if (!netif_running(dev)) {
4520 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4521 channel_type = nla_get_u32(
4522 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4523 if (channel_type != NL80211_CHAN_NO_HT &&
4524 channel_type != NL80211_CHAN_HT20 &&
4525 channel_type != NL80211_CHAN_HT40PLUS &&
4526 channel_type != NL80211_CHAN_HT40MINUS) {
4532 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4533 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4539 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4545 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4546 NL80211_CMD_REMAIN_ON_CHANNEL);
4553 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4554 channel_type, duration, &cookie);
4559 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4561 genlmsg_end(msg, hdr);
4562 err = genlmsg_reply(msg, info);
4570 cfg80211_unlock_rdev(rdev);
4577 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4578 struct genl_info *info)
4580 struct cfg80211_registered_device *rdev;
4581 struct net_device *dev;
4585 if (!info->attrs[NL80211_ATTR_COOKIE])
4590 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4594 if (!rdev->ops->cancel_remain_on_channel) {
4599 if (!netif_running(dev)) {
4604 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4606 err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4609 cfg80211_unlock_rdev(rdev);
4616 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4617 u8 *rates, u8 rates_len)
4622 for (i = 0; i < rates_len; i++) {
4623 int rate = (rates[i] & 0x7f) * 5;
4625 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4626 struct ieee80211_rate *srate =
4627 &sband->bitrates[ridx];
4628 if (rate == srate->bitrate) {
4633 if (ridx == sband->n_bitrates)
4634 return 0; /* rate not found */
4640 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
4641 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4642 .len = NL80211_MAX_SUPP_RATES },
4645 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4646 struct genl_info *info)
4648 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4649 struct cfg80211_registered_device *rdev;
4650 struct cfg80211_bitrate_mask mask;
4652 struct net_device *dev;
4653 struct nlattr *tx_rates;
4654 struct ieee80211_supported_band *sband;
4656 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4661 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4665 if (!rdev->ops->set_bitrate_mask) {
4670 memset(&mask, 0, sizeof(mask));
4671 /* Default to all rates enabled */
4672 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4673 sband = rdev->wiphy.bands[i];
4674 mask.control[i].legacy =
4675 sband ? (1 << sband->n_bitrates) - 1 : 0;
4679 * The nested attribute uses enum nl80211_band as the index. This maps
4680 * directly to the enum ieee80211_band values used in cfg80211.
4682 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4684 enum ieee80211_band band = nla_type(tx_rates);
4685 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4689 sband = rdev->wiphy.bands[band];
4690 if (sband == NULL) {
4694 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4695 nla_len(tx_rates), nl80211_txattr_policy);
4696 if (tb[NL80211_TXRATE_LEGACY]) {
4697 mask.control[band].legacy = rateset_to_mask(
4699 nla_data(tb[NL80211_TXRATE_LEGACY]),
4700 nla_len(tb[NL80211_TXRATE_LEGACY]));
4701 if (mask.control[band].legacy == 0) {
4708 err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
4712 cfg80211_unlock_rdev(rdev);
4718 static int nl80211_register_action(struct sk_buff *skb, struct genl_info *info)
4720 struct cfg80211_registered_device *rdev;
4721 struct net_device *dev;
4724 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4727 if (nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]) < 1)
4732 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4736 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4737 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
4742 /* not much point in registering if we can't reply */
4743 if (!rdev->ops->action) {
4748 err = cfg80211_mlme_register_action(dev->ieee80211_ptr, info->snd_pid,
4749 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4750 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
4752 cfg80211_unlock_rdev(rdev);
4759 static int nl80211_action(struct sk_buff *skb, struct genl_info *info)
4761 struct cfg80211_registered_device *rdev;
4762 struct net_device *dev;
4763 struct ieee80211_channel *chan;
4764 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4765 bool channel_type_valid = false;
4770 struct sk_buff *msg;
4772 if (!info->attrs[NL80211_ATTR_FRAME] ||
4773 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4778 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4782 if (!rdev->ops->action) {
4787 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4788 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
4793 if (!netif_running(dev)) {
4798 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4799 channel_type = nla_get_u32(
4800 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4801 if (channel_type != NL80211_CHAN_NO_HT &&
4802 channel_type != NL80211_CHAN_HT20 &&
4803 channel_type != NL80211_CHAN_HT40PLUS &&
4804 channel_type != NL80211_CHAN_HT40MINUS) {
4808 channel_type_valid = true;
4811 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4812 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4824 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4825 NL80211_CMD_ACTION);
4831 err = cfg80211_mlme_action(rdev, dev, chan, channel_type,
4833 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4834 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4839 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4841 genlmsg_end(msg, hdr);
4842 err = genlmsg_reply(msg, info);
4850 cfg80211_unlock_rdev(rdev);
4857 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4859 struct cfg80211_registered_device *rdev;
4860 struct wireless_dev *wdev;
4861 struct net_device *dev;
4866 if (!info->attrs[NL80211_ATTR_PS_STATE]) {
4871 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4873 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) {
4880 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4884 wdev = dev->ieee80211_ptr;
4886 if (!rdev->ops->set_power_mgmt) {
4891 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4893 if (state == wdev->ps)
4898 if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps,
4900 /* assume this means it's off */
4904 cfg80211_unlock_rdev(rdev);
4912 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4914 struct cfg80211_registered_device *rdev;
4915 enum nl80211_ps_state ps_state;
4916 struct wireless_dev *wdev;
4917 struct net_device *dev;
4918 struct sk_buff *msg;
4924 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4928 wdev = dev->ieee80211_ptr;
4930 if (!rdev->ops->set_power_mgmt) {
4935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4941 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4942 NL80211_CMD_GET_POWER_SAVE);
4949 ps_state = NL80211_PS_ENABLED;
4951 ps_state = NL80211_PS_DISABLED;
4953 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4955 genlmsg_end(msg, hdr);
4956 err = genlmsg_reply(msg, info);
4966 cfg80211_unlock_rdev(rdev);
4975 static struct nla_policy
4976 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4977 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4978 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4979 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4982 static int nl80211_set_cqm_rssi(struct genl_info *info,
4983 s32 threshold, u32 hysteresis)
4985 struct cfg80211_registered_device *rdev;
4986 struct wireless_dev *wdev;
4987 struct net_device *dev;
4995 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4999 wdev = dev->ieee80211_ptr;
5001 if (!rdev->ops->set_cqm_rssi_config) {
5006 if (wdev->iftype != NL80211_IFTYPE_STATION) {
5011 err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5012 threshold, hysteresis);
5015 cfg80211_unlock_rdev(rdev);
5022 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5024 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5028 cqm = info->attrs[NL80211_ATTR_CQM];
5034 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5035 nl80211_attr_cqm_policy);
5039 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5040 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5043 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5044 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5045 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5053 static struct genl_ops nl80211_ops[] = {
5055 .cmd = NL80211_CMD_GET_WIPHY,
5056 .doit = nl80211_get_wiphy,
5057 .dumpit = nl80211_dump_wiphy,
5058 .policy = nl80211_policy,
5059 /* can be retrieved by unprivileged users */
5062 .cmd = NL80211_CMD_SET_WIPHY,
5063 .doit = nl80211_set_wiphy,
5064 .policy = nl80211_policy,
5065 .flags = GENL_ADMIN_PERM,
5068 .cmd = NL80211_CMD_GET_INTERFACE,
5069 .doit = nl80211_get_interface,
5070 .dumpit = nl80211_dump_interface,
5071 .policy = nl80211_policy,
5072 /* can be retrieved by unprivileged users */
5075 .cmd = NL80211_CMD_SET_INTERFACE,
5076 .doit = nl80211_set_interface,
5077 .policy = nl80211_policy,
5078 .flags = GENL_ADMIN_PERM,
5081 .cmd = NL80211_CMD_NEW_INTERFACE,
5082 .doit = nl80211_new_interface,
5083 .policy = nl80211_policy,
5084 .flags = GENL_ADMIN_PERM,
5087 .cmd = NL80211_CMD_DEL_INTERFACE,
5088 .doit = nl80211_del_interface,
5089 .policy = nl80211_policy,
5090 .flags = GENL_ADMIN_PERM,
5093 .cmd = NL80211_CMD_GET_KEY,
5094 .doit = nl80211_get_key,
5095 .policy = nl80211_policy,
5096 .flags = GENL_ADMIN_PERM,
5099 .cmd = NL80211_CMD_SET_KEY,
5100 .doit = nl80211_set_key,
5101 .policy = nl80211_policy,
5102 .flags = GENL_ADMIN_PERM,
5105 .cmd = NL80211_CMD_NEW_KEY,
5106 .doit = nl80211_new_key,
5107 .policy = nl80211_policy,
5108 .flags = GENL_ADMIN_PERM,
5111 .cmd = NL80211_CMD_DEL_KEY,
5112 .doit = nl80211_del_key,
5113 .policy = nl80211_policy,
5114 .flags = GENL_ADMIN_PERM,
5117 .cmd = NL80211_CMD_SET_BEACON,
5118 .policy = nl80211_policy,
5119 .flags = GENL_ADMIN_PERM,
5120 .doit = nl80211_addset_beacon,
5123 .cmd = NL80211_CMD_NEW_BEACON,
5124 .policy = nl80211_policy,
5125 .flags = GENL_ADMIN_PERM,
5126 .doit = nl80211_addset_beacon,
5129 .cmd = NL80211_CMD_DEL_BEACON,
5130 .policy = nl80211_policy,
5131 .flags = GENL_ADMIN_PERM,
5132 .doit = nl80211_del_beacon,
5135 .cmd = NL80211_CMD_GET_STATION,
5136 .doit = nl80211_get_station,
5137 .dumpit = nl80211_dump_station,
5138 .policy = nl80211_policy,
5141 .cmd = NL80211_CMD_SET_STATION,
5142 .doit = nl80211_set_station,
5143 .policy = nl80211_policy,
5144 .flags = GENL_ADMIN_PERM,
5147 .cmd = NL80211_CMD_NEW_STATION,
5148 .doit = nl80211_new_station,
5149 .policy = nl80211_policy,
5150 .flags = GENL_ADMIN_PERM,
5153 .cmd = NL80211_CMD_DEL_STATION,
5154 .doit = nl80211_del_station,
5155 .policy = nl80211_policy,
5156 .flags = GENL_ADMIN_PERM,
5159 .cmd = NL80211_CMD_GET_MPATH,
5160 .doit = nl80211_get_mpath,
5161 .dumpit = nl80211_dump_mpath,
5162 .policy = nl80211_policy,
5163 .flags = GENL_ADMIN_PERM,
5166 .cmd = NL80211_CMD_SET_MPATH,
5167 .doit = nl80211_set_mpath,
5168 .policy = nl80211_policy,
5169 .flags = GENL_ADMIN_PERM,
5172 .cmd = NL80211_CMD_NEW_MPATH,
5173 .doit = nl80211_new_mpath,
5174 .policy = nl80211_policy,
5175 .flags = GENL_ADMIN_PERM,
5178 .cmd = NL80211_CMD_DEL_MPATH,
5179 .doit = nl80211_del_mpath,
5180 .policy = nl80211_policy,
5181 .flags = GENL_ADMIN_PERM,
5184 .cmd = NL80211_CMD_SET_BSS,
5185 .doit = nl80211_set_bss,
5186 .policy = nl80211_policy,
5187 .flags = GENL_ADMIN_PERM,
5190 .cmd = NL80211_CMD_GET_REG,
5191 .doit = nl80211_get_reg,
5192 .policy = nl80211_policy,
5193 /* can be retrieved by unprivileged users */
5196 .cmd = NL80211_CMD_SET_REG,
5197 .doit = nl80211_set_reg,
5198 .policy = nl80211_policy,
5199 .flags = GENL_ADMIN_PERM,
5202 .cmd = NL80211_CMD_REQ_SET_REG,
5203 .doit = nl80211_req_set_reg,
5204 .policy = nl80211_policy,
5205 .flags = GENL_ADMIN_PERM,
5208 .cmd = NL80211_CMD_GET_MESH_PARAMS,
5209 .doit = nl80211_get_mesh_params,
5210 .policy = nl80211_policy,
5211 /* can be retrieved by unprivileged users */
5214 .cmd = NL80211_CMD_SET_MESH_PARAMS,
5215 .doit = nl80211_set_mesh_params,
5216 .policy = nl80211_policy,
5217 .flags = GENL_ADMIN_PERM,
5220 .cmd = NL80211_CMD_TRIGGER_SCAN,
5221 .doit = nl80211_trigger_scan,
5222 .policy = nl80211_policy,
5223 .flags = GENL_ADMIN_PERM,
5226 .cmd = NL80211_CMD_GET_SCAN,
5227 .policy = nl80211_policy,
5228 .dumpit = nl80211_dump_scan,
5231 .cmd = NL80211_CMD_AUTHENTICATE,
5232 .doit = nl80211_authenticate,
5233 .policy = nl80211_policy,
5234 .flags = GENL_ADMIN_PERM,
5237 .cmd = NL80211_CMD_ASSOCIATE,
5238 .doit = nl80211_associate,
5239 .policy = nl80211_policy,
5240 .flags = GENL_ADMIN_PERM,
5243 .cmd = NL80211_CMD_DEAUTHENTICATE,
5244 .doit = nl80211_deauthenticate,
5245 .policy = nl80211_policy,
5246 .flags = GENL_ADMIN_PERM,
5249 .cmd = NL80211_CMD_DISASSOCIATE,
5250 .doit = nl80211_disassociate,
5251 .policy = nl80211_policy,
5252 .flags = GENL_ADMIN_PERM,
5255 .cmd = NL80211_CMD_JOIN_IBSS,
5256 .doit = nl80211_join_ibss,
5257 .policy = nl80211_policy,
5258 .flags = GENL_ADMIN_PERM,
5261 .cmd = NL80211_CMD_LEAVE_IBSS,
5262 .doit = nl80211_leave_ibss,
5263 .policy = nl80211_policy,
5264 .flags = GENL_ADMIN_PERM,
5266 #ifdef CONFIG_NL80211_TESTMODE
5268 .cmd = NL80211_CMD_TESTMODE,
5269 .doit = nl80211_testmode_do,
5270 .policy = nl80211_policy,
5271 .flags = GENL_ADMIN_PERM,
5275 .cmd = NL80211_CMD_CONNECT,
5276 .doit = nl80211_connect,
5277 .policy = nl80211_policy,
5278 .flags = GENL_ADMIN_PERM,
5281 .cmd = NL80211_CMD_DISCONNECT,
5282 .doit = nl80211_disconnect,
5283 .policy = nl80211_policy,
5284 .flags = GENL_ADMIN_PERM,
5287 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5288 .doit = nl80211_wiphy_netns,
5289 .policy = nl80211_policy,
5290 .flags = GENL_ADMIN_PERM,
5293 .cmd = NL80211_CMD_GET_SURVEY,
5294 .policy = nl80211_policy,
5295 .dumpit = nl80211_dump_survey,
5298 .cmd = NL80211_CMD_SET_PMKSA,
5299 .doit = nl80211_setdel_pmksa,
5300 .policy = nl80211_policy,
5301 .flags = GENL_ADMIN_PERM,
5304 .cmd = NL80211_CMD_DEL_PMKSA,
5305 .doit = nl80211_setdel_pmksa,
5306 .policy = nl80211_policy,
5307 .flags = GENL_ADMIN_PERM,
5310 .cmd = NL80211_CMD_FLUSH_PMKSA,
5311 .doit = nl80211_flush_pmksa,
5312 .policy = nl80211_policy,
5313 .flags = GENL_ADMIN_PERM,
5316 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5317 .doit = nl80211_remain_on_channel,
5318 .policy = nl80211_policy,
5319 .flags = GENL_ADMIN_PERM,
5322 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5323 .doit = nl80211_cancel_remain_on_channel,
5324 .policy = nl80211_policy,
5325 .flags = GENL_ADMIN_PERM,
5328 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5329 .doit = nl80211_set_tx_bitrate_mask,
5330 .policy = nl80211_policy,
5331 .flags = GENL_ADMIN_PERM,
5334 .cmd = NL80211_CMD_REGISTER_ACTION,
5335 .doit = nl80211_register_action,
5336 .policy = nl80211_policy,
5337 .flags = GENL_ADMIN_PERM,
5340 .cmd = NL80211_CMD_ACTION,
5341 .doit = nl80211_action,
5342 .policy = nl80211_policy,
5343 .flags = GENL_ADMIN_PERM,
5346 .cmd = NL80211_CMD_SET_POWER_SAVE,
5347 .doit = nl80211_set_power_save,
5348 .policy = nl80211_policy,
5349 .flags = GENL_ADMIN_PERM,
5352 .cmd = NL80211_CMD_GET_POWER_SAVE,
5353 .doit = nl80211_get_power_save,
5354 .policy = nl80211_policy,
5355 /* can be retrieved by unprivileged users */
5358 .cmd = NL80211_CMD_SET_CQM,
5359 .doit = nl80211_set_cqm,
5360 .policy = nl80211_policy,
5361 .flags = GENL_ADMIN_PERM,
5364 .cmd = NL80211_CMD_SET_CHANNEL,
5365 .doit = nl80211_set_channel,
5366 .policy = nl80211_policy,
5367 .flags = GENL_ADMIN_PERM,
5371 static struct genl_multicast_group nl80211_mlme_mcgrp = {
5375 /* multicast groups */
5376 static struct genl_multicast_group nl80211_config_mcgrp = {
5379 static struct genl_multicast_group nl80211_scan_mcgrp = {
5382 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5383 .name = "regulatory",
5386 /* notification functions */
5388 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5390 struct sk_buff *msg;
5392 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5396 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5401 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5402 nl80211_config_mcgrp.id, GFP_KERNEL);
5405 static int nl80211_add_scan_req(struct sk_buff *msg,
5406 struct cfg80211_registered_device *rdev)
5408 struct cfg80211_scan_request *req = rdev->scan_req;
5409 struct nlattr *nest;
5412 ASSERT_RDEV_LOCK(rdev);
5417 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5419 goto nla_put_failure;
5420 for (i = 0; i < req->n_ssids; i++)
5421 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5422 nla_nest_end(msg, nest);
5424 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5426 goto nla_put_failure;
5427 for (i = 0; i < req->n_channels; i++)
5428 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5429 nla_nest_end(msg, nest);
5432 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5439 static int nl80211_send_scan_msg(struct sk_buff *msg,
5440 struct cfg80211_registered_device *rdev,
5441 struct net_device *netdev,
5442 u32 pid, u32 seq, int flags,
5447 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5451 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5452 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5454 /* ignore errors and send incomplete event anyway */
5455 nl80211_add_scan_req(msg, rdev);
5457 return genlmsg_end(msg, hdr);
5460 genlmsg_cancel(msg, hdr);
5464 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5465 struct net_device *netdev)
5467 struct sk_buff *msg;
5469 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5473 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5474 NL80211_CMD_TRIGGER_SCAN) < 0) {
5479 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5480 nl80211_scan_mcgrp.id, GFP_KERNEL);
5483 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5484 struct net_device *netdev)
5486 struct sk_buff *msg;
5488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5492 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5493 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
5498 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5499 nl80211_scan_mcgrp.id, GFP_KERNEL);
5502 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5503 struct net_device *netdev)
5505 struct sk_buff *msg;
5507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5511 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5512 NL80211_CMD_SCAN_ABORTED) < 0) {
5517 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5518 nl80211_scan_mcgrp.id, GFP_KERNEL);
5522 * This can happen on global regulatory changes or device specific settings
5523 * based on custom world regulatory domains.
5525 void nl80211_send_reg_change_event(struct regulatory_request *request)
5527 struct sk_buff *msg;
5530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5534 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5540 /* Userspace can always count this one always being set */
5541 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5543 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5544 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5545 NL80211_REGDOM_TYPE_WORLD);
5546 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5547 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5548 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5549 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5551 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5552 NL80211_REGDOM_TYPE_INTERSECTION);
5554 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5555 NL80211_REGDOM_TYPE_COUNTRY);
5556 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5559 if (wiphy_idx_valid(request->wiphy_idx))
5560 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5562 if (genlmsg_end(msg, hdr) < 0) {
5568 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5575 genlmsg_cancel(msg, hdr);
5579 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5580 struct net_device *netdev,
5581 const u8 *buf, size_t len,
5582 enum nl80211_commands cmd, gfp_t gfp)
5584 struct sk_buff *msg;
5587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5591 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5597 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5598 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5599 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5601 if (genlmsg_end(msg, hdr) < 0) {
5606 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5607 nl80211_mlme_mcgrp.id, gfp);
5611 genlmsg_cancel(msg, hdr);
5615 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
5616 struct net_device *netdev, const u8 *buf,
5617 size_t len, gfp_t gfp)
5619 nl80211_send_mlme_event(rdev, netdev, buf, len,
5620 NL80211_CMD_AUTHENTICATE, gfp);
5623 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5624 struct net_device *netdev, const u8 *buf,
5625 size_t len, gfp_t gfp)
5627 nl80211_send_mlme_event(rdev, netdev, buf, len,
5628 NL80211_CMD_ASSOCIATE, gfp);
5631 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
5632 struct net_device *netdev, const u8 *buf,
5633 size_t len, gfp_t gfp)
5635 nl80211_send_mlme_event(rdev, netdev, buf, len,
5636 NL80211_CMD_DEAUTHENTICATE, gfp);
5639 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5640 struct net_device *netdev, const u8 *buf,
5641 size_t len, gfp_t gfp)
5643 nl80211_send_mlme_event(rdev, netdev, buf, len,
5644 NL80211_CMD_DISASSOCIATE, gfp);
5647 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5648 struct net_device *netdev, int cmd,
5649 const u8 *addr, gfp_t gfp)
5651 struct sk_buff *msg;
5654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5658 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5664 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5665 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5666 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5667 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5669 if (genlmsg_end(msg, hdr) < 0) {
5674 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5675 nl80211_mlme_mcgrp.id, gfp);
5679 genlmsg_cancel(msg, hdr);
5683 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
5684 struct net_device *netdev, const u8 *addr,
5687 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
5691 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
5692 struct net_device *netdev, const u8 *addr,
5695 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5699 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5700 struct net_device *netdev, const u8 *bssid,
5701 const u8 *req_ie, size_t req_ie_len,
5702 const u8 *resp_ie, size_t resp_ie_len,
5703 u16 status, gfp_t gfp)
5705 struct sk_buff *msg;
5708 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5718 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5719 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5721 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5722 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5724 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5726 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5728 if (genlmsg_end(msg, hdr) < 0) {
5733 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5734 nl80211_mlme_mcgrp.id, gfp);
5738 genlmsg_cancel(msg, hdr);
5743 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5744 struct net_device *netdev, const u8 *bssid,
5745 const u8 *req_ie, size_t req_ie_len,
5746 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5748 struct sk_buff *msg;
5751 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5755 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5761 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5762 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5763 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5765 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5767 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5769 if (genlmsg_end(msg, hdr) < 0) {
5774 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5775 nl80211_mlme_mcgrp.id, gfp);
5779 genlmsg_cancel(msg, hdr);
5784 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5785 struct net_device *netdev, u16 reason,
5786 const u8 *ie, size_t ie_len, bool from_ap)
5788 struct sk_buff *msg;
5791 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5795 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5801 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5802 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5803 if (from_ap && reason)
5804 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5806 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5808 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5810 if (genlmsg_end(msg, hdr) < 0) {
5815 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5816 nl80211_mlme_mcgrp.id, GFP_KERNEL);
5820 genlmsg_cancel(msg, hdr);
5825 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5826 struct net_device *netdev, const u8 *bssid,
5829 struct sk_buff *msg;
5832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5836 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5842 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5843 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5844 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5846 if (genlmsg_end(msg, hdr) < 0) {
5851 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5852 nl80211_mlme_mcgrp.id, gfp);
5856 genlmsg_cancel(msg, hdr);
5860 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5861 struct net_device *netdev, const u8 *addr,
5862 enum nl80211_key_type key_type, int key_id,
5863 const u8 *tsc, gfp_t gfp)
5865 struct sk_buff *msg;
5868 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5872 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5878 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5879 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5881 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5882 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5883 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5885 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5887 if (genlmsg_end(msg, hdr) < 0) {
5892 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5893 nl80211_mlme_mcgrp.id, gfp);
5897 genlmsg_cancel(msg, hdr);
5901 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5902 struct ieee80211_channel *channel_before,
5903 struct ieee80211_channel *channel_after)
5905 struct sk_buff *msg;
5907 struct nlattr *nl_freq;
5909 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
5913 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5920 * Since we are applying the beacon hint to a wiphy we know its
5921 * wiphy_idx is valid
5923 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5926 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5928 goto nla_put_failure;
5929 if (nl80211_msg_put_channel(msg, channel_before))
5930 goto nla_put_failure;
5931 nla_nest_end(msg, nl_freq);
5934 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5936 goto nla_put_failure;
5937 if (nl80211_msg_put_channel(msg, channel_after))
5938 goto nla_put_failure;
5939 nla_nest_end(msg, nl_freq);
5941 if (genlmsg_end(msg, hdr) < 0) {
5947 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5954 genlmsg_cancel(msg, hdr);
5958 static void nl80211_send_remain_on_chan_event(
5959 int cmd, struct cfg80211_registered_device *rdev,
5960 struct net_device *netdev, u64 cookie,
5961 struct ieee80211_channel *chan,
5962 enum nl80211_channel_type channel_type,
5963 unsigned int duration, gfp_t gfp)
5965 struct sk_buff *msg;
5968 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5972 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5978 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5979 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5980 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5981 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5982 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5984 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5985 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5987 if (genlmsg_end(msg, hdr) < 0) {
5992 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5993 nl80211_mlme_mcgrp.id, gfp);
5997 genlmsg_cancel(msg, hdr);
6001 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6002 struct net_device *netdev, u64 cookie,
6003 struct ieee80211_channel *chan,
6004 enum nl80211_channel_type channel_type,
6005 unsigned int duration, gfp_t gfp)
6007 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6008 rdev, netdev, cookie, chan,
6009 channel_type, duration, gfp);
6012 void nl80211_send_remain_on_channel_cancel(
6013 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6014 u64 cookie, struct ieee80211_channel *chan,
6015 enum nl80211_channel_type channel_type, gfp_t gfp)
6017 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6018 rdev, netdev, cookie, chan,
6019 channel_type, 0, gfp);
6022 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6023 struct net_device *dev, const u8 *mac_addr,
6024 struct station_info *sinfo, gfp_t gfp)
6026 struct sk_buff *msg;
6028 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6032 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6037 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6038 nl80211_mlme_mcgrp.id, gfp);
6041 int nl80211_send_action(struct cfg80211_registered_device *rdev,
6042 struct net_device *netdev, u32 nlpid,
6043 int freq, const u8 *buf, size_t len, gfp_t gfp)
6045 struct sk_buff *msg;
6049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION);
6059 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6060 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6061 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6062 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6064 err = genlmsg_end(msg, hdr);
6070 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6076 genlmsg_cancel(msg, hdr);
6081 void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev,
6082 struct net_device *netdev, u64 cookie,
6083 const u8 *buf, size_t len, bool ack,
6086 struct sk_buff *msg;
6089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION_TX_STATUS);
6099 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6100 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6101 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6102 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6104 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6106 if (genlmsg_end(msg, hdr) < 0) {
6111 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6115 genlmsg_cancel(msg, hdr);
6120 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6121 struct net_device *netdev,
6122 enum nl80211_cqm_rssi_threshold_event rssi_event,
6125 struct sk_buff *msg;
6126 struct nlattr *pinfoattr;
6129 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6133 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6139 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6140 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6142 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6144 goto nla_put_failure;
6146 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6149 nla_nest_end(msg, pinfoattr);
6151 if (genlmsg_end(msg, hdr) < 0) {
6156 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6157 nl80211_mlme_mcgrp.id, gfp);
6161 genlmsg_cancel(msg, hdr);
6165 static int nl80211_netlink_notify(struct notifier_block * nb,
6166 unsigned long state,
6169 struct netlink_notify *notify = _notify;
6170 struct cfg80211_registered_device *rdev;
6171 struct wireless_dev *wdev;
6173 if (state != NETLINK_URELEASE)
6178 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6179 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
6180 cfg80211_mlme_unregister_actions(wdev, notify->pid);
6187 static struct notifier_block nl80211_netlink_notifier = {
6188 .notifier_call = nl80211_netlink_notify,
6191 /* initialisation/exit functions */
6193 int nl80211_init(void)
6197 err = genl_register_family_with_ops(&nl80211_fam,
6198 nl80211_ops, ARRAY_SIZE(nl80211_ops));
6202 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6206 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6210 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6214 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6218 #ifdef CONFIG_NL80211_TESTMODE
6219 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6224 err = netlink_register_notifier(&nl80211_netlink_notifier);
6230 genl_unregister_family(&nl80211_fam);
6234 void nl80211_exit(void)
6236 netlink_unregister_notifier(&nl80211_netlink_notifier);
6237 genl_unregister_family(&nl80211_fam);