2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
26 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
31 /* the netlink family */
32 static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
43 /* internal helper: get rdev and dev */
44 static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
45 struct cfg80211_registered_device **rdev,
46 struct net_device **dev)
48 struct nlattr **attrs = info->attrs;
51 if (!attrs[NL80211_ATTR_IFINDEX])
54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
62 return PTR_ERR(*rdev);
68 /* policy for the attributes */
69 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
125 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
127 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
128 .len = NL80211_HT_CAPABILITY_LEN },
130 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
131 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
132 .len = IEEE80211_MAX_DATA_LEN },
133 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
134 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
136 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
137 .len = IEEE80211_MAX_SSID_LEN },
138 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
139 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
140 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
141 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
142 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
143 [NL80211_ATTR_STA_FLAGS2] = {
144 .len = sizeof(struct nl80211_sta_flag_update),
146 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
147 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
148 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
149 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
150 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
151 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
152 [NL80211_ATTR_PID] = { .type = NLA_U32 },
153 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
154 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
155 .len = WLAN_PMKID_LEN },
156 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
157 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
158 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
159 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
160 .len = IEEE80211_MAX_DATA_LEN },
161 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
162 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
163 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
164 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
165 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
166 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
167 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
168 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
169 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
170 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
171 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
172 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
175 /* policy for the key attributes */
176 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
177 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
178 [NL80211_KEY_IDX] = { .type = NLA_U8 },
179 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
180 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
181 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
182 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
183 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
186 /* ifidx get helper */
187 static int nl80211_get_ifidx(struct netlink_callback *cb)
191 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
192 nl80211_fam.attrbuf, nl80211_fam.maxattr,
197 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
200 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
206 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
207 struct netlink_callback *cb,
208 struct cfg80211_registered_device **rdev,
209 struct net_device **dev)
211 int ifidx = cb->args[0];
215 ifidx = nl80211_get_ifidx(cb);
223 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
229 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
231 err = PTR_ERR(*rdev);
241 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
243 cfg80211_unlock_rdev(rdev);
248 static bool is_valid_ie_attr(const struct nlattr *attr)
256 pos = nla_data(attr);
277 /* message building helper */
278 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
281 /* since there is no private header just add the generic one */
282 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
285 static int nl80211_msg_put_channel(struct sk_buff *msg,
286 struct ieee80211_channel *chan)
288 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
291 if (chan->flags & IEEE80211_CHAN_DISABLED)
292 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
293 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
294 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
295 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
296 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
297 if (chan->flags & IEEE80211_CHAN_RADAR)
298 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
300 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
301 DBM_TO_MBM(chan->max_power));
309 /* netlink command implementations */
318 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
320 struct nlattr *tb[NL80211_KEY_MAX + 1];
321 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
326 k->def = !!tb[NL80211_KEY_DEFAULT];
327 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
329 if (tb[NL80211_KEY_IDX])
330 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
332 if (tb[NL80211_KEY_DATA]) {
333 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
334 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
337 if (tb[NL80211_KEY_SEQ]) {
338 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
339 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
342 if (tb[NL80211_KEY_CIPHER])
343 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
345 if (tb[NL80211_KEY_TYPE]) {
346 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
347 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
354 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
356 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
357 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
358 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
361 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
362 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
363 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
366 if (info->attrs[NL80211_ATTR_KEY_IDX])
367 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
369 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
370 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
372 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
373 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
375 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
376 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
377 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
384 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
388 memset(k, 0, sizeof(*k));
392 if (info->attrs[NL80211_ATTR_KEY])
393 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
395 err = nl80211_parse_key_old(info, k);
400 if (k->def && k->defmgmt)
405 if (k->idx < 4 || k->idx > 5)
408 if (k->idx < 0 || k->idx > 3)
411 if (k->idx < 0 || k->idx > 5)
419 static struct cfg80211_cached_keys *
420 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
423 struct key_parse parse;
425 struct cfg80211_cached_keys *result;
426 int rem, err, def = 0;
428 result = kzalloc(sizeof(*result), GFP_KERNEL);
430 return ERR_PTR(-ENOMEM);
433 result->defmgmt = -1;
435 nla_for_each_nested(key, keys, rem) {
436 memset(&parse, 0, sizeof(parse));
439 err = nl80211_parse_key_new(key, &parse);
445 if (parse.idx < 0 || parse.idx > 4)
451 result->def = parse.idx;
452 } else if (parse.defmgmt)
454 err = cfg80211_validate_key_settings(rdev, &parse.p,
455 parse.idx, false, NULL);
458 result->params[parse.idx].cipher = parse.p.cipher;
459 result->params[parse.idx].key_len = parse.p.key_len;
460 result->params[parse.idx].key = result->data[parse.idx];
461 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
470 static int nl80211_key_allowed(struct wireless_dev *wdev)
472 ASSERT_WDEV_LOCK(wdev);
474 switch (wdev->iftype) {
475 case NL80211_IFTYPE_AP:
476 case NL80211_IFTYPE_AP_VLAN:
477 case NL80211_IFTYPE_P2P_GO:
479 case NL80211_IFTYPE_ADHOC:
480 if (!wdev->current_bss)
483 case NL80211_IFTYPE_STATION:
484 case NL80211_IFTYPE_P2P_CLIENT:
485 if (wdev->sme_state != CFG80211_SME_CONNECTED)
495 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
496 struct cfg80211_registered_device *dev)
499 struct nlattr *nl_bands, *nl_band;
500 struct nlattr *nl_freqs, *nl_freq;
501 struct nlattr *nl_rates, *nl_rate;
502 struct nlattr *nl_modes;
503 struct nlattr *nl_cmds;
504 enum ieee80211_band band;
505 struct ieee80211_channel *chan;
506 struct ieee80211_rate *rate;
508 u16 ifmodes = dev->wiphy.interface_modes;
509 const struct ieee80211_txrx_stypes *mgmt_stypes =
510 dev->wiphy.mgmt_stypes;
512 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
516 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
517 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
519 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
520 cfg80211_rdev_list_generation);
522 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
523 dev->wiphy.retry_short);
524 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
525 dev->wiphy.retry_long);
526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
527 dev->wiphy.frag_threshold);
528 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
529 dev->wiphy.rts_threshold);
530 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
531 dev->wiphy.coverage_class);
532 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
533 dev->wiphy.max_scan_ssids);
534 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
535 dev->wiphy.max_scan_ie_len);
537 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
538 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
540 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
541 sizeof(u32) * dev->wiphy.n_cipher_suites,
542 dev->wiphy.cipher_suites);
544 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
545 dev->wiphy.max_num_pmkids);
547 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
548 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
550 if (dev->ops->get_antenna) {
551 u32 tx_ant = 0, rx_ant = 0;
553 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
555 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
560 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
562 goto nla_put_failure;
567 NLA_PUT_FLAG(msg, i);
572 nla_nest_end(msg, nl_modes);
574 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
576 goto nla_put_failure;
578 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
579 if (!dev->wiphy.bands[band])
582 nl_band = nla_nest_start(msg, band);
584 goto nla_put_failure;
587 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
588 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
589 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
590 &dev->wiphy.bands[band]->ht_cap.mcs);
591 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
592 dev->wiphy.bands[band]->ht_cap.cap);
593 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
594 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
595 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
596 dev->wiphy.bands[band]->ht_cap.ampdu_density);
599 /* add frequencies */
600 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
602 goto nla_put_failure;
604 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
605 nl_freq = nla_nest_start(msg, i);
607 goto nla_put_failure;
609 chan = &dev->wiphy.bands[band]->channels[i];
611 if (nl80211_msg_put_channel(msg, chan))
612 goto nla_put_failure;
614 nla_nest_end(msg, nl_freq);
617 nla_nest_end(msg, nl_freqs);
620 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
622 goto nla_put_failure;
624 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
625 nl_rate = nla_nest_start(msg, i);
627 goto nla_put_failure;
629 rate = &dev->wiphy.bands[band]->bitrates[i];
630 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
632 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
634 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
636 nla_nest_end(msg, nl_rate);
639 nla_nest_end(msg, nl_rates);
641 nla_nest_end(msg, nl_band);
643 nla_nest_end(msg, nl_bands);
645 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
647 goto nla_put_failure;
652 if (dev->ops->op) { \
654 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
658 CMD(add_virtual_intf, NEW_INTERFACE);
659 CMD(change_virtual_intf, SET_INTERFACE);
660 CMD(add_key, NEW_KEY);
661 CMD(add_beacon, NEW_BEACON);
662 CMD(add_station, NEW_STATION);
663 CMD(add_mpath, NEW_MPATH);
664 CMD(set_mesh_params, SET_MESH_PARAMS);
665 CMD(change_bss, SET_BSS);
666 CMD(auth, AUTHENTICATE);
667 CMD(assoc, ASSOCIATE);
668 CMD(deauth, DEAUTHENTICATE);
669 CMD(disassoc, DISASSOCIATE);
670 CMD(join_ibss, JOIN_IBSS);
671 CMD(set_pmksa, SET_PMKSA);
672 CMD(del_pmksa, DEL_PMKSA);
673 CMD(flush_pmksa, FLUSH_PMKSA);
674 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
675 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
677 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
678 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
680 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
682 CMD(set_channel, SET_CHANNEL);
683 CMD(set_wds_peer, SET_WDS_PEER);
687 if (dev->ops->connect || dev->ops->auth) {
689 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
692 if (dev->ops->disconnect || dev->ops->deauth) {
694 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
697 nla_nest_end(msg, nl_cmds);
699 /* for now at least assume all drivers have it */
700 if (dev->ops->mgmt_tx)
701 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
705 struct nlattr *nl_ftypes, *nl_ifs;
706 enum nl80211_iftype ift;
708 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
710 goto nla_put_failure;
712 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
713 nl_ftypes = nla_nest_start(msg, ift);
715 goto nla_put_failure;
717 stypes = mgmt_stypes[ift].tx;
720 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
721 (i << 4) | IEEE80211_FTYPE_MGMT);
725 nla_nest_end(msg, nl_ftypes);
728 nla_nest_end(msg, nl_ifs);
730 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
732 goto nla_put_failure;
734 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
735 nl_ftypes = nla_nest_start(msg, ift);
737 goto nla_put_failure;
739 stypes = mgmt_stypes[ift].rx;
742 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
743 (i << 4) | IEEE80211_FTYPE_MGMT);
747 nla_nest_end(msg, nl_ftypes);
749 nla_nest_end(msg, nl_ifs);
752 return genlmsg_end(msg, hdr);
755 genlmsg_cancel(msg, hdr);
759 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
762 int start = cb->args[0];
763 struct cfg80211_registered_device *dev;
765 mutex_lock(&cfg80211_mutex);
766 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
767 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
771 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
772 cb->nlh->nlmsg_seq, NLM_F_MULTI,
778 mutex_unlock(&cfg80211_mutex);
785 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
788 struct cfg80211_registered_device *dev = info->user_ptr[0];
790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
794 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
799 return genlmsg_reply(msg, info);
802 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
803 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
804 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
805 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
806 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
807 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
810 static int parse_txq_params(struct nlattr *tb[],
811 struct ieee80211_txq_params *txq_params)
813 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
814 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
815 !tb[NL80211_TXQ_ATTR_AIFS])
818 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
819 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
820 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
821 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
822 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
827 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
830 * You can only set the channel explicitly for AP, mesh
831 * and WDS type interfaces; all others have their channel
832 * managed via their respective "establish a connection"
833 * command (connect, join, ...)
835 * Monitors are special as they are normally slaved to
836 * whatever else is going on, so they behave as though
837 * you tried setting the wiphy channel itself.
840 wdev->iftype == NL80211_IFTYPE_AP ||
841 wdev->iftype == NL80211_IFTYPE_WDS ||
842 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
843 wdev->iftype == NL80211_IFTYPE_MONITOR ||
844 wdev->iftype == NL80211_IFTYPE_P2P_GO;
847 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
848 struct wireless_dev *wdev,
849 struct genl_info *info)
851 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
855 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
858 if (!nl80211_can_set_dev_channel(wdev))
861 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
862 channel_type = nla_get_u32(info->attrs[
863 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
864 if (channel_type != NL80211_CHAN_NO_HT &&
865 channel_type != NL80211_CHAN_HT20 &&
866 channel_type != NL80211_CHAN_HT40PLUS &&
867 channel_type != NL80211_CHAN_HT40MINUS)
871 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
873 mutex_lock(&rdev->devlist_mtx);
876 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
879 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
881 mutex_unlock(&rdev->devlist_mtx);
886 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
889 struct net_device *netdev = info->user_ptr[1];
891 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
894 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
897 struct net_device *dev = info->user_ptr[1];
898 struct wireless_dev *wdev = dev->ieee80211_ptr;
901 if (!info->attrs[NL80211_ATTR_MAC])
904 if (netif_running(dev))
907 if (!rdev->ops->set_wds_peer)
910 if (wdev->iftype != NL80211_IFTYPE_WDS)
913 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
914 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
918 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
920 struct cfg80211_registered_device *rdev;
921 struct net_device *netdev = NULL;
922 struct wireless_dev *wdev;
923 int result = 0, rem_txq_params = 0;
924 struct nlattr *nl_txq_params;
926 u8 retry_short = 0, retry_long = 0;
927 u32 frag_threshold = 0, rts_threshold = 0;
928 u8 coverage_class = 0;
931 * Try to find the wiphy and netdev. Normally this
932 * function shouldn't need the netdev, but this is
933 * done for backward compatibility -- previously
934 * setting the channel was done per wiphy, but now
935 * it is per netdev. Previous userland like hostapd
936 * also passed a netdev to set_wiphy, so that it is
937 * possible to let that go to the right netdev!
939 mutex_lock(&cfg80211_mutex);
941 if (info->attrs[NL80211_ATTR_IFINDEX]) {
942 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
944 netdev = dev_get_by_index(genl_info_net(info), ifindex);
945 if (netdev && netdev->ieee80211_ptr) {
946 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
947 mutex_lock(&rdev->mtx);
953 rdev = __cfg80211_rdev_from_info(info);
955 mutex_unlock(&cfg80211_mutex);
956 return PTR_ERR(rdev);
962 mutex_lock(&rdev->mtx);
963 } else if (netif_running(netdev) &&
964 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
965 wdev = netdev->ieee80211_ptr;
970 * end workaround code, by now the rdev is available
971 * and locked, and wdev may or may not be NULL.
974 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
975 result = cfg80211_dev_rename(
976 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
978 mutex_unlock(&cfg80211_mutex);
983 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
984 struct ieee80211_txq_params txq_params;
985 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
987 if (!rdev->ops->set_txq_params) {
988 result = -EOPNOTSUPP;
992 nla_for_each_nested(nl_txq_params,
993 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
995 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
996 nla_data(nl_txq_params),
997 nla_len(nl_txq_params),
999 result = parse_txq_params(tb, &txq_params);
1003 result = rdev->ops->set_txq_params(&rdev->wiphy,
1010 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1011 result = __nl80211_set_channel(rdev, wdev, info);
1016 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1017 enum nl80211_tx_power_setting type;
1020 if (!rdev->ops->set_tx_power) {
1021 result = -EOPNOTSUPP;
1025 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1026 type = nla_get_u32(info->attrs[idx]);
1028 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1029 (type != NL80211_TX_POWER_AUTOMATIC)) {
1034 if (type != NL80211_TX_POWER_AUTOMATIC) {
1035 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1036 mbm = nla_get_u32(info->attrs[idx]);
1039 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1044 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1045 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1047 if (!rdev->ops->set_antenna) {
1048 result = -EOPNOTSUPP;
1052 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1053 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1055 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1062 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1063 retry_short = nla_get_u8(
1064 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1065 if (retry_short == 0) {
1069 changed |= WIPHY_PARAM_RETRY_SHORT;
1072 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1073 retry_long = nla_get_u8(
1074 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1075 if (retry_long == 0) {
1079 changed |= WIPHY_PARAM_RETRY_LONG;
1082 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1083 frag_threshold = nla_get_u32(
1084 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1085 if (frag_threshold < 256) {
1089 if (frag_threshold != (u32) -1) {
1091 * Fragments (apart from the last one) are required to
1092 * have even length. Make the fragmentation code
1093 * simpler by stripping LSB should someone try to use
1094 * odd threshold value.
1096 frag_threshold &= ~0x1;
1098 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1101 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1102 rts_threshold = nla_get_u32(
1103 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1104 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1107 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1108 coverage_class = nla_get_u8(
1109 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1110 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1114 u8 old_retry_short, old_retry_long;
1115 u32 old_frag_threshold, old_rts_threshold;
1116 u8 old_coverage_class;
1118 if (!rdev->ops->set_wiphy_params) {
1119 result = -EOPNOTSUPP;
1123 old_retry_short = rdev->wiphy.retry_short;
1124 old_retry_long = rdev->wiphy.retry_long;
1125 old_frag_threshold = rdev->wiphy.frag_threshold;
1126 old_rts_threshold = rdev->wiphy.rts_threshold;
1127 old_coverage_class = rdev->wiphy.coverage_class;
1129 if (changed & WIPHY_PARAM_RETRY_SHORT)
1130 rdev->wiphy.retry_short = retry_short;
1131 if (changed & WIPHY_PARAM_RETRY_LONG)
1132 rdev->wiphy.retry_long = retry_long;
1133 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1134 rdev->wiphy.frag_threshold = frag_threshold;
1135 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1136 rdev->wiphy.rts_threshold = rts_threshold;
1137 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1138 rdev->wiphy.coverage_class = coverage_class;
1140 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1142 rdev->wiphy.retry_short = old_retry_short;
1143 rdev->wiphy.retry_long = old_retry_long;
1144 rdev->wiphy.frag_threshold = old_frag_threshold;
1145 rdev->wiphy.rts_threshold = old_rts_threshold;
1146 rdev->wiphy.coverage_class = old_coverage_class;
1151 mutex_unlock(&rdev->mtx);
1158 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1159 struct cfg80211_registered_device *rdev,
1160 struct net_device *dev)
1164 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1168 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1169 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1170 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1171 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1173 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1174 rdev->devlist_generation ^
1175 (cfg80211_rdev_list_generation << 2));
1177 return genlmsg_end(msg, hdr);
1180 genlmsg_cancel(msg, hdr);
1184 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1188 int wp_start = cb->args[0];
1189 int if_start = cb->args[1];
1190 struct cfg80211_registered_device *rdev;
1191 struct wireless_dev *wdev;
1193 mutex_lock(&cfg80211_mutex);
1194 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1195 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1197 if (wp_idx < wp_start) {
1203 mutex_lock(&rdev->devlist_mtx);
1204 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1205 if (if_idx < if_start) {
1209 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1210 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1211 rdev, wdev->netdev) < 0) {
1212 mutex_unlock(&rdev->devlist_mtx);
1217 mutex_unlock(&rdev->devlist_mtx);
1222 mutex_unlock(&cfg80211_mutex);
1224 cb->args[0] = wp_idx;
1225 cb->args[1] = if_idx;
1230 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1232 struct sk_buff *msg;
1233 struct cfg80211_registered_device *dev = info->user_ptr[0];
1234 struct net_device *netdev = info->user_ptr[1];
1236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1240 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1246 return genlmsg_reply(msg, info);
1249 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1250 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1251 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1252 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1253 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1254 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1257 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1259 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1267 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1268 nla, mntr_flags_policy))
1271 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1273 *mntrflags |= (1<<flag);
1278 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1279 struct net_device *netdev, u8 use_4addr,
1280 enum nl80211_iftype iftype)
1283 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1289 case NL80211_IFTYPE_AP_VLAN:
1290 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1293 case NL80211_IFTYPE_STATION:
1294 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1304 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1307 struct vif_params params;
1309 enum nl80211_iftype otype, ntype;
1310 struct net_device *dev = info->user_ptr[1];
1311 u32 _flags, *flags = NULL;
1312 bool change = false;
1314 memset(¶ms, 0, sizeof(params));
1316 otype = ntype = dev->ieee80211_ptr->iftype;
1318 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1319 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1322 if (ntype > NL80211_IFTYPE_MAX)
1326 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1327 if (ntype != NL80211_IFTYPE_MESH_POINT)
1329 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1330 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1334 if (info->attrs[NL80211_ATTR_4ADDR]) {
1335 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1337 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1341 params.use_4addr = -1;
1344 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1345 if (ntype != NL80211_IFTYPE_MONITOR)
1347 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1357 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1361 if (!err && params.use_4addr != -1)
1362 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1367 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1370 struct vif_params params;
1372 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1375 memset(¶ms, 0, sizeof(params));
1377 if (!info->attrs[NL80211_ATTR_IFNAME])
1380 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1381 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1382 if (type > NL80211_IFTYPE_MAX)
1386 if (!rdev->ops->add_virtual_intf ||
1387 !(rdev->wiphy.interface_modes & (1 << type)))
1390 if (type == NL80211_IFTYPE_MESH_POINT &&
1391 info->attrs[NL80211_ATTR_MESH_ID]) {
1392 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1393 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1396 if (info->attrs[NL80211_ATTR_4ADDR]) {
1397 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1398 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1403 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1404 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1406 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
1407 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1408 type, err ? NULL : &flags, ¶ms);
1413 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1416 struct net_device *dev = info->user_ptr[1];
1418 if (!rdev->ops->del_virtual_intf)
1421 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1424 struct get_key_cookie {
1425 struct sk_buff *msg;
1430 static void get_key_callback(void *c, struct key_params *params)
1433 struct get_key_cookie *cookie = c;
1436 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1437 params->key_len, params->key);
1440 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1441 params->seq_len, params->seq);
1444 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1447 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1449 goto nla_put_failure;
1452 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1453 params->key_len, params->key);
1456 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1457 params->seq_len, params->seq);
1460 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1463 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1465 nla_nest_end(cookie->msg, key);
1472 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1476 struct net_device *dev = info->user_ptr[1];
1478 const u8 *mac_addr = NULL;
1480 struct get_key_cookie cookie = {
1484 struct sk_buff *msg;
1486 if (info->attrs[NL80211_ATTR_KEY_IDX])
1487 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1492 if (info->attrs[NL80211_ATTR_MAC])
1493 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1495 pairwise = !!mac_addr;
1496 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1497 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1498 if (kt >= NUM_NL80211_KEYTYPES)
1500 if (kt != NL80211_KEYTYPE_GROUP &&
1501 kt != NL80211_KEYTYPE_PAIRWISE)
1503 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1506 if (!rdev->ops->get_key)
1509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1513 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1514 NL80211_CMD_NEW_KEY);
1516 return PTR_ERR(hdr);
1519 cookie.idx = key_idx;
1521 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1522 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1524 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1526 if (pairwise && mac_addr &&
1527 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1530 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1531 mac_addr, &cookie, get_key_callback);
1537 goto nla_put_failure;
1539 genlmsg_end(msg, hdr);
1540 return genlmsg_reply(msg, info);
1549 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1552 struct key_parse key;
1554 struct net_device *dev = info->user_ptr[1];
1555 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1558 err = nl80211_parse_key(info, &key);
1565 /* only support setting default key */
1566 if (!key.def && !key.defmgmt)
1570 func = rdev->ops->set_default_key;
1572 func = rdev->ops->set_default_mgmt_key;
1577 wdev_lock(dev->ieee80211_ptr);
1578 err = nl80211_key_allowed(dev->ieee80211_ptr);
1580 err = func(&rdev->wiphy, dev, key.idx);
1582 #ifdef CONFIG_CFG80211_WEXT
1584 if (func == rdev->ops->set_default_key)
1585 dev->ieee80211_ptr->wext.default_key = key.idx;
1587 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1590 wdev_unlock(dev->ieee80211_ptr);
1595 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1599 struct net_device *dev = info->user_ptr[1];
1600 struct key_parse key;
1601 const u8 *mac_addr = NULL;
1603 err = nl80211_parse_key(info, &key);
1610 if (info->attrs[NL80211_ATTR_MAC])
1611 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1613 if (key.type == -1) {
1615 key.type = NL80211_KEYTYPE_PAIRWISE;
1617 key.type = NL80211_KEYTYPE_GROUP;
1621 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1622 key.type != NL80211_KEYTYPE_GROUP)
1625 if (!rdev->ops->add_key)
1628 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1629 key.type == NL80211_KEYTYPE_PAIRWISE,
1633 wdev_lock(dev->ieee80211_ptr);
1634 err = nl80211_key_allowed(dev->ieee80211_ptr);
1636 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1637 key.type == NL80211_KEYTYPE_PAIRWISE,
1639 wdev_unlock(dev->ieee80211_ptr);
1644 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1648 struct net_device *dev = info->user_ptr[1];
1649 u8 *mac_addr = NULL;
1650 struct key_parse key;
1652 err = nl80211_parse_key(info, &key);
1656 if (info->attrs[NL80211_ATTR_MAC])
1657 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1659 if (key.type == -1) {
1661 key.type = NL80211_KEYTYPE_PAIRWISE;
1663 key.type = NL80211_KEYTYPE_GROUP;
1667 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1668 key.type != NL80211_KEYTYPE_GROUP)
1671 if (!rdev->ops->del_key)
1674 wdev_lock(dev->ieee80211_ptr);
1675 err = nl80211_key_allowed(dev->ieee80211_ptr);
1677 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1678 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1682 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1683 key.type == NL80211_KEYTYPE_PAIRWISE,
1686 #ifdef CONFIG_CFG80211_WEXT
1688 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1689 dev->ieee80211_ptr->wext.default_key = -1;
1690 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1691 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1694 wdev_unlock(dev->ieee80211_ptr);
1699 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1701 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1702 struct beacon_parameters *info);
1703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1704 struct net_device *dev = info->user_ptr[1];
1705 struct beacon_parameters params;
1708 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1711 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1712 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1715 switch (info->genlhdr->cmd) {
1716 case NL80211_CMD_NEW_BEACON:
1717 /* these are required for NEW_BEACON */
1718 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1719 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1720 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1723 call = rdev->ops->add_beacon;
1725 case NL80211_CMD_SET_BEACON:
1726 call = rdev->ops->set_beacon;
1736 memset(¶ms, 0, sizeof(params));
1738 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1740 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1744 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1745 params.dtim_period =
1746 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1750 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1751 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1753 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1757 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1758 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1760 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1767 return call(&rdev->wiphy, dev, ¶ms);
1770 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1773 struct net_device *dev = info->user_ptr[1];
1775 if (!rdev->ops->del_beacon)
1778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1782 return rdev->ops->del_beacon(&rdev->wiphy, dev);
1785 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1786 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1787 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1788 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1789 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
1792 static int parse_station_flags(struct genl_info *info,
1793 struct station_parameters *params)
1795 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1800 * Try parsing the new attribute first so userspace
1801 * can specify both for older kernels.
1803 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1805 struct nl80211_sta_flag_update *sta_flags;
1807 sta_flags = nla_data(nla);
1808 params->sta_flags_mask = sta_flags->mask;
1809 params->sta_flags_set = sta_flags->set;
1810 if ((params->sta_flags_mask |
1811 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1816 /* if present, parse the old attribute */
1818 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
1822 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1823 nla, sta_flags_policy))
1826 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1827 params->sta_flags_mask &= ~1;
1829 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1831 params->sta_flags_set |= (1<<flag);
1836 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1837 int flags, struct net_device *dev,
1838 const u8 *mac_addr, struct station_info *sinfo)
1841 struct nlattr *sinfoattr, *txrate;
1844 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1848 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1849 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1851 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1853 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1855 goto nla_put_failure;
1856 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1857 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1858 sinfo->inactive_time);
1859 if (sinfo->filled & STATION_INFO_RX_BYTES)
1860 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1862 if (sinfo->filled & STATION_INFO_TX_BYTES)
1863 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1865 if (sinfo->filled & STATION_INFO_LLID)
1866 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1868 if (sinfo->filled & STATION_INFO_PLID)
1869 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1871 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1872 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1873 sinfo->plink_state);
1874 if (sinfo->filled & STATION_INFO_SIGNAL)
1875 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1877 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1878 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1880 goto nla_put_failure;
1882 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1883 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
1885 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1887 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1888 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1890 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1891 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1892 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1893 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1895 nla_nest_end(msg, txrate);
1897 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1898 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1900 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1901 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1903 if (sinfo->filled & STATION_INFO_TX_RETRIES)
1904 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
1906 if (sinfo->filled & STATION_INFO_TX_FAILED)
1907 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
1909 nla_nest_end(msg, sinfoattr);
1911 return genlmsg_end(msg, hdr);
1914 genlmsg_cancel(msg, hdr);
1918 static int nl80211_dump_station(struct sk_buff *skb,
1919 struct netlink_callback *cb)
1921 struct station_info sinfo;
1922 struct cfg80211_registered_device *dev;
1923 struct net_device *netdev;
1924 u8 mac_addr[ETH_ALEN];
1925 int sta_idx = cb->args[1];
1928 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
1932 if (!dev->ops->dump_station) {
1938 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1945 if (nl80211_send_station(skb,
1946 NETLINK_CB(cb->skb).pid,
1947 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1957 cb->args[1] = sta_idx;
1960 nl80211_finish_netdev_dump(dev);
1965 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1968 struct net_device *dev = info->user_ptr[1];
1969 struct station_info sinfo;
1970 struct sk_buff *msg;
1971 u8 *mac_addr = NULL;
1974 memset(&sinfo, 0, sizeof(sinfo));
1976 if (!info->attrs[NL80211_ATTR_MAC])
1979 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1981 if (!rdev->ops->get_station)
1984 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
1988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1992 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1993 dev, mac_addr, &sinfo) < 0) {
1998 return genlmsg_reply(msg, info);
2002 * Get vlan interface making sure it is running and on the right wiphy.
2004 static int get_vlan(struct genl_info *info,
2005 struct cfg80211_registered_device *rdev,
2006 struct net_device **vlan)
2008 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2012 *vlan = dev_get_by_index(genl_info_net(info),
2013 nla_get_u32(vlanattr));
2016 if (!(*vlan)->ieee80211_ptr)
2018 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2020 if (!netif_running(*vlan))
2026 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2030 struct net_device *dev = info->user_ptr[1];
2031 struct station_parameters params;
2032 u8 *mac_addr = NULL;
2034 memset(¶ms, 0, sizeof(params));
2036 params.listen_interval = -1;
2038 if (info->attrs[NL80211_ATTR_STA_AID])
2041 if (!info->attrs[NL80211_ATTR_MAC])
2044 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2046 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2047 params.supported_rates =
2048 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2049 params.supported_rates_len =
2050 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2053 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2054 params.listen_interval =
2055 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2057 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2059 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2061 if (parse_station_flags(info, ¶ms))
2064 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2065 params.plink_action =
2066 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2068 err = get_vlan(info, rdev, ¶ms.vlan);
2072 /* validate settings */
2075 switch (dev->ieee80211_ptr->iftype) {
2076 case NL80211_IFTYPE_AP:
2077 case NL80211_IFTYPE_AP_VLAN:
2078 case NL80211_IFTYPE_P2P_GO:
2079 /* disallow mesh-specific things */
2080 if (params.plink_action)
2083 case NL80211_IFTYPE_P2P_CLIENT:
2084 case NL80211_IFTYPE_STATION:
2085 /* disallow everything but AUTHORIZED flag */
2086 if (params.plink_action)
2090 if (params.supported_rates)
2094 if (params.listen_interval >= 0)
2096 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2099 case NL80211_IFTYPE_MESH_POINT:
2100 /* disallow things mesh doesn't support */
2105 if (params.listen_interval >= 0)
2107 if (params.supported_rates)
2109 if (params.sta_flags_mask)
2119 if (!rdev->ops->change_station) {
2124 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2128 dev_put(params.vlan);
2133 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2137 struct net_device *dev = info->user_ptr[1];
2138 struct station_parameters params;
2139 u8 *mac_addr = NULL;
2141 memset(¶ms, 0, sizeof(params));
2143 if (!info->attrs[NL80211_ATTR_MAC])
2146 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2149 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2152 if (!info->attrs[NL80211_ATTR_STA_AID])
2155 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2156 params.supported_rates =
2157 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2158 params.supported_rates_len =
2159 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2160 params.listen_interval =
2161 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2163 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2164 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2167 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2169 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2171 if (parse_station_flags(info, ¶ms))
2174 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2175 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2176 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2179 err = get_vlan(info, rdev, ¶ms.vlan);
2183 /* validate settings */
2186 if (!rdev->ops->add_station) {
2191 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2195 dev_put(params.vlan);
2199 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2202 struct net_device *dev = info->user_ptr[1];
2203 u8 *mac_addr = NULL;
2205 if (info->attrs[NL80211_ATTR_MAC])
2206 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2208 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2209 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2210 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2211 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2214 if (!rdev->ops->del_station)
2217 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2220 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2221 int flags, struct net_device *dev,
2222 u8 *dst, u8 *next_hop,
2223 struct mpath_info *pinfo)
2226 struct nlattr *pinfoattr;
2228 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2233 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2234 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2236 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2238 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2240 goto nla_put_failure;
2241 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2242 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2244 if (pinfo->filled & MPATH_INFO_SN)
2245 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2247 if (pinfo->filled & MPATH_INFO_METRIC)
2248 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2250 if (pinfo->filled & MPATH_INFO_EXPTIME)
2251 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2253 if (pinfo->filled & MPATH_INFO_FLAGS)
2254 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2256 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2257 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2258 pinfo->discovery_timeout);
2259 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2260 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2261 pinfo->discovery_retries);
2263 nla_nest_end(msg, pinfoattr);
2265 return genlmsg_end(msg, hdr);
2268 genlmsg_cancel(msg, hdr);
2272 static int nl80211_dump_mpath(struct sk_buff *skb,
2273 struct netlink_callback *cb)
2275 struct mpath_info pinfo;
2276 struct cfg80211_registered_device *dev;
2277 struct net_device *netdev;
2279 u8 next_hop[ETH_ALEN];
2280 int path_idx = cb->args[1];
2283 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2287 if (!dev->ops->dump_mpath) {
2292 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2298 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2299 dst, next_hop, &pinfo);
2305 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2306 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2307 netdev, dst, next_hop,
2316 cb->args[1] = path_idx;
2319 nl80211_finish_netdev_dump(dev);
2323 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2327 struct net_device *dev = info->user_ptr[1];
2328 struct mpath_info pinfo;
2329 struct sk_buff *msg;
2331 u8 next_hop[ETH_ALEN];
2333 memset(&pinfo, 0, sizeof(pinfo));
2335 if (!info->attrs[NL80211_ATTR_MAC])
2338 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2340 if (!rdev->ops->get_mpath)
2343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2346 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2350 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2354 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2355 dev, dst, next_hop, &pinfo) < 0) {
2360 return genlmsg_reply(msg, info);
2363 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2366 struct net_device *dev = info->user_ptr[1];
2368 u8 *next_hop = NULL;
2370 if (!info->attrs[NL80211_ATTR_MAC])
2373 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2376 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2377 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2379 if (!rdev->ops->change_mpath)
2382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2385 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2388 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2391 struct net_device *dev = info->user_ptr[1];
2393 u8 *next_hop = NULL;
2395 if (!info->attrs[NL80211_ATTR_MAC])
2398 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2401 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2402 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2404 if (!rdev->ops->add_mpath)
2407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2410 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2413 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2416 struct net_device *dev = info->user_ptr[1];
2419 if (info->attrs[NL80211_ATTR_MAC])
2420 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2422 if (!rdev->ops->del_mpath)
2425 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2428 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2431 struct net_device *dev = info->user_ptr[1];
2432 struct bss_parameters params;
2434 memset(¶ms, 0, sizeof(params));
2435 /* default to not changing parameters */
2436 params.use_cts_prot = -1;
2437 params.use_short_preamble = -1;
2438 params.use_short_slot_time = -1;
2439 params.ap_isolate = -1;
2441 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2442 params.use_cts_prot =
2443 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2444 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2445 params.use_short_preamble =
2446 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2447 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2448 params.use_short_slot_time =
2449 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2450 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2451 params.basic_rates =
2452 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2453 params.basic_rates_len =
2454 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2456 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2457 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2459 if (!rdev->ops->change_bss)
2462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2463 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2466 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2469 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2470 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2471 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2472 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2473 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2474 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2475 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2478 static int parse_reg_rule(struct nlattr *tb[],
2479 struct ieee80211_reg_rule *reg_rule)
2481 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2482 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2484 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2486 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2488 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2490 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2492 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2495 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2497 freq_range->start_freq_khz =
2498 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2499 freq_range->end_freq_khz =
2500 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2501 freq_range->max_bandwidth_khz =
2502 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2504 power_rule->max_eirp =
2505 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2507 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2508 power_rule->max_antenna_gain =
2509 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2514 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2520 * You should only get this when cfg80211 hasn't yet initialized
2521 * completely when built-in to the kernel right between the time
2522 * window between nl80211_init() and regulatory_init(), if that is
2525 mutex_lock(&cfg80211_mutex);
2526 if (unlikely(!cfg80211_regdomain)) {
2527 mutex_unlock(&cfg80211_mutex);
2528 return -EINPROGRESS;
2530 mutex_unlock(&cfg80211_mutex);
2532 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2535 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2537 r = regulatory_hint_user(data);
2542 static int nl80211_get_mesh_params(struct sk_buff *skb,
2543 struct genl_info *info)
2545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2546 struct mesh_config cur_params;
2548 struct net_device *dev = info->user_ptr[1];
2550 struct nlattr *pinfoattr;
2551 struct sk_buff *msg;
2553 if (!rdev->ops->get_mesh_params)
2556 /* Get the mesh params */
2557 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
2561 /* Draw up a netlink message to send back */
2562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2565 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2566 NL80211_CMD_GET_MESH_PARAMS);
2568 goto nla_put_failure;
2569 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2571 goto nla_put_failure;
2572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2573 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2574 cur_params.dot11MeshRetryTimeout);
2575 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2576 cur_params.dot11MeshConfirmTimeout);
2577 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2578 cur_params.dot11MeshHoldingTimeout);
2579 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2580 cur_params.dot11MeshMaxPeerLinks);
2581 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2582 cur_params.dot11MeshMaxRetries);
2583 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2584 cur_params.dot11MeshTTL);
2585 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2586 cur_params.element_ttl);
2587 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2588 cur_params.auto_open_plinks);
2589 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2590 cur_params.dot11MeshHWMPmaxPREQretries);
2591 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2592 cur_params.path_refresh_time);
2593 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2594 cur_params.min_discovery_timeout);
2595 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2596 cur_params.dot11MeshHWMPactivePathTimeout);
2597 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2598 cur_params.dot11MeshHWMPpreqMinInterval);
2599 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2600 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2601 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2602 cur_params.dot11MeshHWMPRootMode);
2603 nla_nest_end(msg, pinfoattr);
2604 genlmsg_end(msg, hdr);
2605 return genlmsg_reply(msg, info);
2608 genlmsg_cancel(msg, hdr);
2613 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2615 if (table[attr_num]) {\
2616 cfg.param = nla_fn(table[attr_num]); \
2617 mask |= (1 << (attr_num - 1)); \
2621 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
2622 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2623 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2624 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2625 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2626 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2627 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2628 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
2629 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2631 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2632 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2633 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2634 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2635 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2636 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2639 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2643 struct net_device *dev = info->user_ptr[1];
2644 struct mesh_config cfg;
2645 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2646 struct nlattr *parent_attr;
2648 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2651 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2652 parent_attr, nl80211_meshconf_params_policy))
2655 if (!rdev->ops->set_mesh_params)
2658 /* This makes sure that there aren't more than 32 mesh config
2659 * parameters (otherwise our bitfield scheme would not work.) */
2660 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2662 /* Fill in the params struct */
2664 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2665 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2666 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2667 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2668 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2669 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2670 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2671 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2673 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2674 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2675 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2677 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
2678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2679 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2681 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2684 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2685 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2686 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2689 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2692 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2695 dot11MeshHWMPnetDiameterTraversalTime,
2696 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2699 dot11MeshHWMPRootMode, mask,
2700 NL80211_MESHCONF_HWMP_ROOTMODE,
2704 return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
2707 #undef FILL_IN_MESH_PARAM_IF_SET
2709 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2711 struct sk_buff *msg;
2713 struct nlattr *nl_reg_rules;
2717 mutex_lock(&cfg80211_mutex);
2719 if (!cfg80211_regdomain)
2722 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2728 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2729 NL80211_CMD_GET_REG);
2731 goto nla_put_failure;
2733 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2734 cfg80211_regdomain->alpha2);
2736 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2738 goto nla_put_failure;
2740 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2741 struct nlattr *nl_reg_rule;
2742 const struct ieee80211_reg_rule *reg_rule;
2743 const struct ieee80211_freq_range *freq_range;
2744 const struct ieee80211_power_rule *power_rule;
2746 reg_rule = &cfg80211_regdomain->reg_rules[i];
2747 freq_range = ®_rule->freq_range;
2748 power_rule = ®_rule->power_rule;
2750 nl_reg_rule = nla_nest_start(msg, i);
2752 goto nla_put_failure;
2754 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2756 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2757 freq_range->start_freq_khz);
2758 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2759 freq_range->end_freq_khz);
2760 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2761 freq_range->max_bandwidth_khz);
2762 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2763 power_rule->max_antenna_gain);
2764 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2765 power_rule->max_eirp);
2767 nla_nest_end(msg, nl_reg_rule);
2770 nla_nest_end(msg, nl_reg_rules);
2772 genlmsg_end(msg, hdr);
2773 err = genlmsg_reply(msg, info);
2777 genlmsg_cancel(msg, hdr);
2781 mutex_unlock(&cfg80211_mutex);
2785 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2787 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2788 struct nlattr *nl_reg_rule;
2789 char *alpha2 = NULL;
2790 int rem_reg_rules = 0, r = 0;
2791 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2792 struct ieee80211_regdomain *rd = NULL;
2794 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2797 if (!info->attrs[NL80211_ATTR_REG_RULES])
2800 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2802 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2805 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2809 mutex_lock(&cfg80211_mutex);
2811 if (!reg_is_valid_request(alpha2)) {
2816 size_of_regd = sizeof(struct ieee80211_regdomain) +
2817 (num_rules * sizeof(struct ieee80211_reg_rule));
2819 rd = kzalloc(size_of_regd, GFP_KERNEL);
2825 rd->n_reg_rules = num_rules;
2826 rd->alpha2[0] = alpha2[0];
2827 rd->alpha2[1] = alpha2[1];
2829 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2831 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2832 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2834 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2840 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2846 BUG_ON(rule_idx != num_rules);
2850 mutex_unlock(&cfg80211_mutex);
2855 mutex_unlock(&cfg80211_mutex);
2860 static int validate_scan_freqs(struct nlattr *freqs)
2862 struct nlattr *attr1, *attr2;
2863 int n_channels = 0, tmp1, tmp2;
2865 nla_for_each_nested(attr1, freqs, tmp1) {
2868 * Some hardware has a limited channel list for
2869 * scanning, and it is pretty much nonsensical
2870 * to scan for a channel twice, so disallow that
2871 * and don't require drivers to check that the
2872 * channel list they get isn't longer than what
2873 * they can scan, as long as they can scan all
2874 * the channels they registered at once.
2876 nla_for_each_nested(attr2, freqs, tmp2)
2877 if (attr1 != attr2 &&
2878 nla_get_u32(attr1) == nla_get_u32(attr2))
2885 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2888 struct net_device *dev = info->user_ptr[1];
2889 struct cfg80211_scan_request *request;
2890 struct cfg80211_ssid *ssid;
2891 struct ieee80211_channel *channel;
2892 struct nlattr *attr;
2893 struct wiphy *wiphy;
2894 int err, tmp, n_ssids = 0, n_channels, i;
2895 enum ieee80211_band band;
2898 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2901 wiphy = &rdev->wiphy;
2903 if (!rdev->ops->scan)
2909 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2910 n_channels = validate_scan_freqs(
2911 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2917 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2918 if (wiphy->bands[band])
2919 n_channels += wiphy->bands[band]->n_channels;
2922 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2923 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2926 if (n_ssids > wiphy->max_scan_ssids)
2929 if (info->attrs[NL80211_ATTR_IE])
2930 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2934 if (ie_len > wiphy->max_scan_ie_len)
2937 request = kzalloc(sizeof(*request)
2938 + sizeof(*ssid) * n_ssids
2939 + sizeof(channel) * n_channels
2940 + ie_len, GFP_KERNEL);
2945 request->ssids = (void *)&request->channels[n_channels];
2946 request->n_ssids = n_ssids;
2949 request->ie = (void *)(request->ssids + n_ssids);
2951 request->ie = (void *)(request->channels + n_channels);
2955 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2956 /* user specified, bail out if channel not found */
2957 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
2958 struct ieee80211_channel *chan;
2960 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2967 /* ignore disabled channels */
2968 if (chan->flags & IEEE80211_CHAN_DISABLED)
2971 request->channels[i] = chan;
2976 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2978 if (!wiphy->bands[band])
2980 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
2981 struct ieee80211_channel *chan;
2983 chan = &wiphy->bands[band]->channels[j];
2985 if (chan->flags & IEEE80211_CHAN_DISABLED)
2988 request->channels[i] = chan;
2999 request->n_channels = i;
3002 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3003 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3004 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3008 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3009 request->ssids[i].ssid_len = nla_len(attr);
3014 if (info->attrs[NL80211_ATTR_IE]) {
3015 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3016 memcpy((void *)request->ie,
3017 nla_data(info->attrs[NL80211_ATTR_IE]),
3022 request->wiphy = &rdev->wiphy;
3024 rdev->scan_req = request;
3025 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3028 nl80211_send_scan_start(rdev, dev);
3032 rdev->scan_req = NULL;
3039 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3040 struct cfg80211_registered_device *rdev,
3041 struct wireless_dev *wdev,
3042 struct cfg80211_internal_bss *intbss)
3044 struct cfg80211_bss *res = &intbss->pub;
3049 ASSERT_WDEV_LOCK(wdev);
3051 hdr = nl80211hdr_put(msg, pid, seq, flags,
3052 NL80211_CMD_NEW_SCAN_RESULTS);
3056 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3057 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3059 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3061 goto nla_put_failure;
3062 if (!is_zero_ether_addr(res->bssid))
3063 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3064 if (res->information_elements && res->len_information_elements)
3065 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3066 res->len_information_elements,
3067 res->information_elements);
3068 if (res->beacon_ies && res->len_beacon_ies &&
3069 res->beacon_ies != res->information_elements)
3070 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3071 res->len_beacon_ies, res->beacon_ies);
3073 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3074 if (res->beacon_interval)
3075 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3076 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3077 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3078 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3079 jiffies_to_msecs(jiffies - intbss->ts));
3081 switch (rdev->wiphy.signal_type) {
3082 case CFG80211_SIGNAL_TYPE_MBM:
3083 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3085 case CFG80211_SIGNAL_TYPE_UNSPEC:
3086 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3092 switch (wdev->iftype) {
3093 case NL80211_IFTYPE_P2P_CLIENT:
3094 case NL80211_IFTYPE_STATION:
3095 if (intbss == wdev->current_bss)
3096 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3097 NL80211_BSS_STATUS_ASSOCIATED);
3098 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3099 if (intbss != wdev->auth_bsses[i])
3101 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3102 NL80211_BSS_STATUS_AUTHENTICATED);
3106 case NL80211_IFTYPE_ADHOC:
3107 if (intbss == wdev->current_bss)
3108 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3109 NL80211_BSS_STATUS_IBSS_JOINED);
3115 nla_nest_end(msg, bss);
3117 return genlmsg_end(msg, hdr);
3120 genlmsg_cancel(msg, hdr);
3124 static int nl80211_dump_scan(struct sk_buff *skb,
3125 struct netlink_callback *cb)
3127 struct cfg80211_registered_device *rdev;
3128 struct net_device *dev;
3129 struct cfg80211_internal_bss *scan;
3130 struct wireless_dev *wdev;
3131 int start = cb->args[1], idx = 0;
3134 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3138 wdev = dev->ieee80211_ptr;
3141 spin_lock_bh(&rdev->bss_lock);
3142 cfg80211_bss_expire(rdev);
3144 list_for_each_entry(scan, &rdev->bss_list, list) {
3147 if (nl80211_send_bss(skb,
3148 NETLINK_CB(cb->skb).pid,
3149 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3150 rdev, wdev, scan) < 0) {
3156 spin_unlock_bh(&rdev->bss_lock);
3160 nl80211_finish_netdev_dump(rdev);
3165 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3166 int flags, struct net_device *dev,
3167 struct survey_info *survey)
3170 struct nlattr *infoattr;
3172 /* Survey without a channel doesn't make sense */
3173 if (!survey->channel)
3176 hdr = nl80211hdr_put(msg, pid, seq, flags,
3177 NL80211_CMD_NEW_SURVEY_RESULTS);
3181 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3183 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3185 goto nla_put_failure;
3187 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3188 survey->channel->center_freq);
3189 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3190 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3192 if (survey->filled & SURVEY_INFO_IN_USE)
3193 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
3194 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3195 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3196 survey->channel_time);
3197 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3198 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3199 survey->channel_time_busy);
3200 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3201 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3202 survey->channel_time_ext_busy);
3203 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3204 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3205 survey->channel_time_rx);
3206 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3207 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3208 survey->channel_time_tx);
3210 nla_nest_end(msg, infoattr);
3212 return genlmsg_end(msg, hdr);
3215 genlmsg_cancel(msg, hdr);
3219 static int nl80211_dump_survey(struct sk_buff *skb,
3220 struct netlink_callback *cb)
3222 struct survey_info survey;
3223 struct cfg80211_registered_device *dev;
3224 struct net_device *netdev;
3225 int survey_idx = cb->args[1];
3228 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3232 if (!dev->ops->dump_survey) {
3238 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3245 if (nl80211_send_survey(skb,
3246 NETLINK_CB(cb->skb).pid,
3247 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3255 cb->args[1] = survey_idx;
3258 nl80211_finish_netdev_dump(dev);
3262 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3264 return auth_type <= NL80211_AUTHTYPE_MAX;
3267 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3269 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3270 NL80211_WPA_VERSION_2));
3273 static bool nl80211_valid_akm_suite(u32 akm)
3275 return akm == WLAN_AKM_SUITE_8021X ||
3276 akm == WLAN_AKM_SUITE_PSK;
3279 static bool nl80211_valid_cipher_suite(u32 cipher)
3281 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3282 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3283 cipher == WLAN_CIPHER_SUITE_TKIP ||
3284 cipher == WLAN_CIPHER_SUITE_CCMP ||
3285 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3289 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3292 struct net_device *dev = info->user_ptr[1];
3293 struct ieee80211_channel *chan;
3294 const u8 *bssid, *ssid, *ie = NULL;
3295 int err, ssid_len, ie_len = 0;
3296 enum nl80211_auth_type auth_type;
3297 struct key_parse key;
3298 bool local_state_change;
3300 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3303 if (!info->attrs[NL80211_ATTR_MAC])
3306 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3309 if (!info->attrs[NL80211_ATTR_SSID])
3312 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3315 err = nl80211_parse_key(info, &key);
3320 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3322 if (!key.p.key || !key.p.key_len)
3324 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3325 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3326 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3327 key.p.key_len != WLAN_KEY_LEN_WEP104))
3339 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3340 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3349 if (!rdev->ops->auth)
3352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3353 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3356 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3357 chan = ieee80211_get_channel(&rdev->wiphy,
3358 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3359 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3362 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3363 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3365 if (info->attrs[NL80211_ATTR_IE]) {
3366 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3367 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3370 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3371 if (!nl80211_valid_auth_type(auth_type))
3374 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3376 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3377 ssid, ssid_len, ie, ie_len,
3378 key.p.key, key.p.key_len, key.idx,
3379 local_state_change);
3382 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3383 struct genl_info *info,
3384 struct cfg80211_crypto_settings *settings,
3387 memset(settings, 0, sizeof(*settings));
3389 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3391 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3393 proto = nla_get_u16(
3394 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3395 settings->control_port_ethertype = cpu_to_be16(proto);
3396 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3399 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3400 settings->control_port_no_encrypt = true;
3402 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3404 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3408 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3409 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3410 settings->n_ciphers_pairwise = len / sizeof(u32);
3412 if (len % sizeof(u32))
3415 if (settings->n_ciphers_pairwise > cipher_limit)
3418 memcpy(settings->ciphers_pairwise, data, len);
3420 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3421 if (!nl80211_valid_cipher_suite(
3422 settings->ciphers_pairwise[i]))
3426 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3427 settings->cipher_group =
3428 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3429 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3433 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3434 settings->wpa_versions =
3435 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3436 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3440 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3444 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3445 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3446 settings->n_akm_suites = len / sizeof(u32);
3448 if (len % sizeof(u32))
3451 memcpy(settings->akm_suites, data, len);
3453 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3454 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3461 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3464 struct net_device *dev = info->user_ptr[1];
3465 struct cfg80211_crypto_settings crypto;
3466 struct ieee80211_channel *chan;
3467 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
3468 int err, ssid_len, ie_len = 0;
3469 bool use_mfp = false;
3471 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3474 if (!info->attrs[NL80211_ATTR_MAC] ||
3475 !info->attrs[NL80211_ATTR_SSID] ||
3476 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
3479 if (!rdev->ops->assoc)
3482 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3483 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3486 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3488 chan = ieee80211_get_channel(&rdev->wiphy,
3489 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3490 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3493 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3494 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3496 if (info->attrs[NL80211_ATTR_IE]) {
3497 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3498 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3501 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3502 enum nl80211_mfp mfp =
3503 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3504 if (mfp == NL80211_MFP_REQUIRED)
3506 else if (mfp != NL80211_MFP_NO)
3510 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3511 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3513 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
3515 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3516 ssid, ssid_len, ie, ie_len, use_mfp,
3522 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3525 struct net_device *dev = info->user_ptr[1];
3526 const u8 *ie = NULL, *bssid;
3529 bool local_state_change;
3531 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3534 if (!info->attrs[NL80211_ATTR_MAC])
3537 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3540 if (!rdev->ops->deauth)
3543 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3544 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3547 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3549 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3550 if (reason_code == 0) {
3551 /* Reason Code 0 is reserved */
3555 if (info->attrs[NL80211_ATTR_IE]) {
3556 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3557 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3560 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3562 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3563 local_state_change);
3566 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3569 struct net_device *dev = info->user_ptr[1];
3570 const u8 *ie = NULL, *bssid;
3573 bool local_state_change;
3575 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3578 if (!info->attrs[NL80211_ATTR_MAC])
3581 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3584 if (!rdev->ops->disassoc)
3587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3591 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3593 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3594 if (reason_code == 0) {
3595 /* Reason Code 0 is reserved */
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 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3606 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3607 local_state_change);
3611 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3612 int mcast_rate[IEEE80211_NUM_BANDS],
3615 struct wiphy *wiphy = &rdev->wiphy;
3619 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3620 struct ieee80211_supported_band *sband;
3622 sband = wiphy->bands[band];
3626 for (i = 0; i < sband->n_bitrates; i++) {
3627 if (sband->bitrates[i].bitrate == rateval) {
3628 mcast_rate[band] = i + 1;
3638 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3641 struct net_device *dev = info->user_ptr[1];
3642 struct cfg80211_ibss_params ibss;
3643 struct wiphy *wiphy;
3644 struct cfg80211_cached_keys *connkeys = NULL;
3647 memset(&ibss, 0, sizeof(ibss));
3649 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3652 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3653 !info->attrs[NL80211_ATTR_SSID] ||
3654 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3657 ibss.beacon_interval = 100;
3659 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3660 ibss.beacon_interval =
3661 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3662 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3666 if (!rdev->ops->join_ibss)
3669 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3672 wiphy = &rdev->wiphy;
3674 if (info->attrs[NL80211_ATTR_MAC])
3675 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3676 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3677 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3679 if (info->attrs[NL80211_ATTR_IE]) {
3680 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3681 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3684 ibss.channel = ieee80211_get_channel(wiphy,
3685 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3686 if (!ibss.channel ||
3687 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3688 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3691 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3692 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3694 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3696 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3698 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3699 struct ieee80211_supported_band *sband =
3700 wiphy->bands[ibss.channel->band];
3706 for (i = 0; i < n_rates; i++) {
3707 int rate = (rates[i] & 0x7f) * 5;
3710 for (j = 0; j < sband->n_bitrates; j++) {
3711 if (sband->bitrates[j].bitrate == rate) {
3713 ibss.basic_rates |= BIT(j);
3722 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3723 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3724 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3727 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3728 connkeys = nl80211_parse_connkeys(rdev,
3729 info->attrs[NL80211_ATTR_KEYS]);
3730 if (IS_ERR(connkeys))
3731 return PTR_ERR(connkeys);
3734 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
3740 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3743 struct net_device *dev = info->user_ptr[1];
3745 if (!rdev->ops->leave_ibss)
3748 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3751 return cfg80211_leave_ibss(rdev, dev, false);
3754 #ifdef CONFIG_NL80211_TESTMODE
3755 static struct genl_multicast_group nl80211_testmode_mcgrp = {
3759 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3764 if (!info->attrs[NL80211_ATTR_TESTDATA])
3768 if (rdev->ops->testmode_cmd) {
3769 rdev->testmode_info = info;
3770 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3771 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3772 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3773 rdev->testmode_info = NULL;
3779 static struct sk_buff *
3780 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3781 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3783 struct sk_buff *skb;
3785 struct nlattr *data;
3787 skb = nlmsg_new(approxlen + 100, gfp);
3791 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3797 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3798 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3800 ((void **)skb->cb)[0] = rdev;
3801 ((void **)skb->cb)[1] = hdr;
3802 ((void **)skb->cb)[2] = data;
3811 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3814 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3816 if (WARN_ON(!rdev->testmode_info))
3819 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3820 rdev->testmode_info->snd_pid,
3821 rdev->testmode_info->snd_seq,
3824 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3826 int cfg80211_testmode_reply(struct sk_buff *skb)
3828 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3829 void *hdr = ((void **)skb->cb)[1];
3830 struct nlattr *data = ((void **)skb->cb)[2];
3832 if (WARN_ON(!rdev->testmode_info)) {
3837 nla_nest_end(skb, data);
3838 genlmsg_end(skb, hdr);
3839 return genlmsg_reply(skb, rdev->testmode_info);
3841 EXPORT_SYMBOL(cfg80211_testmode_reply);
3843 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3844 int approxlen, gfp_t gfp)
3846 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3848 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3850 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3852 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3854 void *hdr = ((void **)skb->cb)[1];
3855 struct nlattr *data = ((void **)skb->cb)[2];
3857 nla_nest_end(skb, data);
3858 genlmsg_end(skb, hdr);
3859 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3861 EXPORT_SYMBOL(cfg80211_testmode_event);
3864 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3867 struct net_device *dev = info->user_ptr[1];
3868 struct cfg80211_connect_params connect;
3869 struct wiphy *wiphy;
3870 struct cfg80211_cached_keys *connkeys = NULL;
3873 memset(&connect, 0, sizeof(connect));
3875 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3878 if (!info->attrs[NL80211_ATTR_SSID] ||
3879 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3882 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3884 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3885 if (!nl80211_valid_auth_type(connect.auth_type))
3888 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3890 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3892 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3893 NL80211_MAX_NR_CIPHER_SUITES);
3897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3901 wiphy = &rdev->wiphy;
3903 if (info->attrs[NL80211_ATTR_MAC])
3904 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3905 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3906 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3908 if (info->attrs[NL80211_ATTR_IE]) {
3909 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3910 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3913 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3915 ieee80211_get_channel(wiphy,
3916 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3917 if (!connect.channel ||
3918 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3922 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3923 connkeys = nl80211_parse_connkeys(rdev,
3924 info->attrs[NL80211_ATTR_KEYS]);
3925 if (IS_ERR(connkeys))
3926 return PTR_ERR(connkeys);
3929 err = cfg80211_connect(rdev, dev, &connect, connkeys);
3935 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3938 struct net_device *dev = info->user_ptr[1];
3941 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3942 reason = WLAN_REASON_DEAUTH_LEAVING;
3944 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3949 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3950 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3953 return cfg80211_disconnect(rdev, dev, reason, true);
3956 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
3958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3963 if (!info->attrs[NL80211_ATTR_PID])
3966 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
3968 net = get_net_ns_by_pid(pid);
3970 return PTR_ERR(net);
3974 /* check if anything to do */
3975 if (!net_eq(wiphy_net(&rdev->wiphy), net))
3976 err = cfg80211_switch_netns(rdev, net);
3982 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
3984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3985 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
3986 struct cfg80211_pmksa *pmksa) = NULL;
3987 struct net_device *dev = info->user_ptr[1];
3988 struct cfg80211_pmksa pmksa;
3990 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
3992 if (!info->attrs[NL80211_ATTR_MAC])
3995 if (!info->attrs[NL80211_ATTR_PMKID])
3998 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
3999 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4001 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4002 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4005 switch (info->genlhdr->cmd) {
4006 case NL80211_CMD_SET_PMKSA:
4007 rdev_ops = rdev->ops->set_pmksa;
4009 case NL80211_CMD_DEL_PMKSA:
4010 rdev_ops = rdev->ops->del_pmksa;
4020 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4023 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4026 struct net_device *dev = info->user_ptr[1];
4028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4032 if (!rdev->ops->flush_pmksa)
4035 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4038 static int nl80211_remain_on_channel(struct sk_buff *skb,
4039 struct genl_info *info)
4041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4042 struct net_device *dev = info->user_ptr[1];
4043 struct ieee80211_channel *chan;
4044 struct sk_buff *msg;
4047 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4051 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4052 !info->attrs[NL80211_ATTR_DURATION])
4055 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4058 * We should be on that channel for at least one jiffie,
4059 * and more than 5 seconds seems excessive.
4061 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4064 if (!rdev->ops->remain_on_channel)
4067 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4068 channel_type = nla_get_u32(
4069 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4070 if (channel_type != NL80211_CHAN_NO_HT &&
4071 channel_type != NL80211_CHAN_HT20 &&
4072 channel_type != NL80211_CHAN_HT40PLUS &&
4073 channel_type != NL80211_CHAN_HT40MINUS)
4077 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4078 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4086 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4087 NL80211_CMD_REMAIN_ON_CHANNEL);
4094 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4095 channel_type, duration, &cookie);
4100 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4102 genlmsg_end(msg, hdr);
4104 return genlmsg_reply(msg, info);
4113 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4114 struct genl_info *info)
4116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4117 struct net_device *dev = info->user_ptr[1];
4120 if (!info->attrs[NL80211_ATTR_COOKIE])
4123 if (!rdev->ops->cancel_remain_on_channel)
4126 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4128 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4131 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4132 u8 *rates, u8 rates_len)
4137 for (i = 0; i < rates_len; i++) {
4138 int rate = (rates[i] & 0x7f) * 5;
4140 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4141 struct ieee80211_rate *srate =
4142 &sband->bitrates[ridx];
4143 if (rate == srate->bitrate) {
4148 if (ridx == sband->n_bitrates)
4149 return 0; /* rate not found */
4155 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
4156 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4157 .len = NL80211_MAX_SUPP_RATES },
4160 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4161 struct genl_info *info)
4163 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4165 struct cfg80211_bitrate_mask mask;
4167 struct net_device *dev = info->user_ptr[1];
4168 struct nlattr *tx_rates;
4169 struct ieee80211_supported_band *sband;
4171 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4174 if (!rdev->ops->set_bitrate_mask)
4177 memset(&mask, 0, sizeof(mask));
4178 /* Default to all rates enabled */
4179 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4180 sband = rdev->wiphy.bands[i];
4181 mask.control[i].legacy =
4182 sband ? (1 << sband->n_bitrates) - 1 : 0;
4186 * The nested attribute uses enum nl80211_band as the index. This maps
4187 * directly to the enum ieee80211_band values used in cfg80211.
4189 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4191 enum ieee80211_band band = nla_type(tx_rates);
4192 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4194 sband = rdev->wiphy.bands[band];
4197 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4198 nla_len(tx_rates), nl80211_txattr_policy);
4199 if (tb[NL80211_TXRATE_LEGACY]) {
4200 mask.control[band].legacy = rateset_to_mask(
4202 nla_data(tb[NL80211_TXRATE_LEGACY]),
4203 nla_len(tb[NL80211_TXRATE_LEGACY]));
4204 if (mask.control[band].legacy == 0)
4209 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
4212 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
4214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4215 struct net_device *dev = info->user_ptr[1];
4216 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
4218 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4221 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4222 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
4224 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4225 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4227 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4228 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4229 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4232 /* not much point in registering if we can't reply */
4233 if (!rdev->ops->mgmt_tx)
4236 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
4238 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4239 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
4242 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
4244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4245 struct net_device *dev = info->user_ptr[1];
4246 struct ieee80211_channel *chan;
4247 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4248 bool channel_type_valid = false;
4253 struct sk_buff *msg;
4254 unsigned int wait = 0;
4257 if (!info->attrs[NL80211_ATTR_FRAME] ||
4258 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4261 if (!rdev->ops->mgmt_tx)
4264 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4265 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4266 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4267 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4272 if (info->attrs[NL80211_ATTR_DURATION]) {
4273 if (!rdev->ops->mgmt_tx_cancel_wait)
4275 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4278 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4279 channel_type = nla_get_u32(
4280 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4281 if (channel_type != NL80211_CHAN_NO_HT &&
4282 channel_type != NL80211_CHAN_HT20 &&
4283 channel_type != NL80211_CHAN_HT40PLUS &&
4284 channel_type != NL80211_CHAN_HT40MINUS)
4286 channel_type_valid = true;
4289 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4291 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4292 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4300 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4307 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4308 channel_type_valid, wait,
4309 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4310 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4315 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4317 genlmsg_end(msg, hdr);
4318 return genlmsg_reply(msg, info);
4327 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4330 struct net_device *dev = info->user_ptr[1];
4333 if (!info->attrs[NL80211_ATTR_COOKIE])
4336 if (!rdev->ops->mgmt_tx_cancel_wait)
4339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4340 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4341 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4342 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4347 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4349 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4352 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4355 struct wireless_dev *wdev;
4356 struct net_device *dev = info->user_ptr[1];
4361 if (!info->attrs[NL80211_ATTR_PS_STATE])
4364 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4366 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4369 wdev = dev->ieee80211_ptr;
4371 if (!rdev->ops->set_power_mgmt)
4374 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4376 if (state == wdev->ps)
4379 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4386 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4389 enum nl80211_ps_state ps_state;
4390 struct wireless_dev *wdev;
4391 struct net_device *dev = info->user_ptr[1];
4392 struct sk_buff *msg;
4396 wdev = dev->ieee80211_ptr;
4398 if (!rdev->ops->set_power_mgmt)
4401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4405 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4406 NL80211_CMD_GET_POWER_SAVE);
4413 ps_state = NL80211_PS_ENABLED;
4415 ps_state = NL80211_PS_DISABLED;
4417 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4419 genlmsg_end(msg, hdr);
4420 return genlmsg_reply(msg, info);
4429 static struct nla_policy
4430 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4431 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4432 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4433 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4436 static int nl80211_set_cqm_rssi(struct genl_info *info,
4437 s32 threshold, u32 hysteresis)
4439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4440 struct wireless_dev *wdev;
4441 struct net_device *dev = info->user_ptr[1];
4446 wdev = dev->ieee80211_ptr;
4448 if (!rdev->ops->set_cqm_rssi_config)
4451 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4452 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4455 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4456 threshold, hysteresis);
4459 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4461 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4465 cqm = info->attrs[NL80211_ATTR_CQM];
4471 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4472 nl80211_attr_cqm_policy);
4476 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4477 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4480 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4481 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4482 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4490 #define NL80211_FLAG_NEED_WIPHY 0x01
4491 #define NL80211_FLAG_NEED_NETDEV 0x02
4492 #define NL80211_FLAG_NEED_RTNL 0x04
4493 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4494 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4495 NL80211_FLAG_CHECK_NETDEV_UP)
4497 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4498 struct genl_info *info)
4500 struct cfg80211_registered_device *rdev;
4501 struct net_device *dev;
4503 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4508 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4509 rdev = cfg80211_get_dev_from_info(info);
4513 return PTR_ERR(rdev);
4515 info->user_ptr[0] = rdev;
4516 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4517 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4523 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4524 !netif_running(dev)) {
4525 cfg80211_unlock_rdev(rdev);
4531 info->user_ptr[0] = rdev;
4532 info->user_ptr[1] = dev;
4538 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4539 struct genl_info *info)
4541 if (info->user_ptr[0])
4542 cfg80211_unlock_rdev(info->user_ptr[0]);
4543 if (info->user_ptr[1])
4544 dev_put(info->user_ptr[1]);
4545 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4549 static struct genl_ops nl80211_ops[] = {
4551 .cmd = NL80211_CMD_GET_WIPHY,
4552 .doit = nl80211_get_wiphy,
4553 .dumpit = nl80211_dump_wiphy,
4554 .policy = nl80211_policy,
4555 /* can be retrieved by unprivileged users */
4556 .internal_flags = NL80211_FLAG_NEED_WIPHY,
4559 .cmd = NL80211_CMD_SET_WIPHY,
4560 .doit = nl80211_set_wiphy,
4561 .policy = nl80211_policy,
4562 .flags = GENL_ADMIN_PERM,
4563 .internal_flags = NL80211_FLAG_NEED_RTNL,
4566 .cmd = NL80211_CMD_GET_INTERFACE,
4567 .doit = nl80211_get_interface,
4568 .dumpit = nl80211_dump_interface,
4569 .policy = nl80211_policy,
4570 /* can be retrieved by unprivileged users */
4571 .internal_flags = NL80211_FLAG_NEED_NETDEV,
4574 .cmd = NL80211_CMD_SET_INTERFACE,
4575 .doit = nl80211_set_interface,
4576 .policy = nl80211_policy,
4577 .flags = GENL_ADMIN_PERM,
4578 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4579 NL80211_FLAG_NEED_RTNL,
4582 .cmd = NL80211_CMD_NEW_INTERFACE,
4583 .doit = nl80211_new_interface,
4584 .policy = nl80211_policy,
4585 .flags = GENL_ADMIN_PERM,
4586 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4587 NL80211_FLAG_NEED_RTNL,
4590 .cmd = NL80211_CMD_DEL_INTERFACE,
4591 .doit = nl80211_del_interface,
4592 .policy = nl80211_policy,
4593 .flags = GENL_ADMIN_PERM,
4594 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4595 NL80211_FLAG_NEED_RTNL,
4598 .cmd = NL80211_CMD_GET_KEY,
4599 .doit = nl80211_get_key,
4600 .policy = nl80211_policy,
4601 .flags = GENL_ADMIN_PERM,
4602 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4603 NL80211_FLAG_NEED_RTNL,
4606 .cmd = NL80211_CMD_SET_KEY,
4607 .doit = nl80211_set_key,
4608 .policy = nl80211_policy,
4609 .flags = GENL_ADMIN_PERM,
4610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4611 NL80211_FLAG_NEED_RTNL,
4614 .cmd = NL80211_CMD_NEW_KEY,
4615 .doit = nl80211_new_key,
4616 .policy = nl80211_policy,
4617 .flags = GENL_ADMIN_PERM,
4618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4619 NL80211_FLAG_NEED_RTNL,
4622 .cmd = NL80211_CMD_DEL_KEY,
4623 .doit = nl80211_del_key,
4624 .policy = nl80211_policy,
4625 .flags = GENL_ADMIN_PERM,
4626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4627 NL80211_FLAG_NEED_RTNL,
4630 .cmd = NL80211_CMD_SET_BEACON,
4631 .policy = nl80211_policy,
4632 .flags = GENL_ADMIN_PERM,
4633 .doit = nl80211_addset_beacon,
4634 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4635 NL80211_FLAG_NEED_RTNL,
4638 .cmd = NL80211_CMD_NEW_BEACON,
4639 .policy = nl80211_policy,
4640 .flags = GENL_ADMIN_PERM,
4641 .doit = nl80211_addset_beacon,
4642 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4643 NL80211_FLAG_NEED_RTNL,
4646 .cmd = NL80211_CMD_DEL_BEACON,
4647 .policy = nl80211_policy,
4648 .flags = GENL_ADMIN_PERM,
4649 .doit = nl80211_del_beacon,
4650 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4651 NL80211_FLAG_NEED_RTNL,
4654 .cmd = NL80211_CMD_GET_STATION,
4655 .doit = nl80211_get_station,
4656 .dumpit = nl80211_dump_station,
4657 .policy = nl80211_policy,
4658 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4659 NL80211_FLAG_NEED_RTNL,
4662 .cmd = NL80211_CMD_SET_STATION,
4663 .doit = nl80211_set_station,
4664 .policy = nl80211_policy,
4665 .flags = GENL_ADMIN_PERM,
4666 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4667 NL80211_FLAG_NEED_RTNL,
4670 .cmd = NL80211_CMD_NEW_STATION,
4671 .doit = nl80211_new_station,
4672 .policy = nl80211_policy,
4673 .flags = GENL_ADMIN_PERM,
4674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4675 NL80211_FLAG_NEED_RTNL,
4678 .cmd = NL80211_CMD_DEL_STATION,
4679 .doit = nl80211_del_station,
4680 .policy = nl80211_policy,
4681 .flags = GENL_ADMIN_PERM,
4682 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4683 NL80211_FLAG_NEED_RTNL,
4686 .cmd = NL80211_CMD_GET_MPATH,
4687 .doit = nl80211_get_mpath,
4688 .dumpit = nl80211_dump_mpath,
4689 .policy = nl80211_policy,
4690 .flags = GENL_ADMIN_PERM,
4691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4692 NL80211_FLAG_NEED_RTNL,
4695 .cmd = NL80211_CMD_SET_MPATH,
4696 .doit = nl80211_set_mpath,
4697 .policy = nl80211_policy,
4698 .flags = GENL_ADMIN_PERM,
4699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4700 NL80211_FLAG_NEED_RTNL,
4703 .cmd = NL80211_CMD_NEW_MPATH,
4704 .doit = nl80211_new_mpath,
4705 .policy = nl80211_policy,
4706 .flags = GENL_ADMIN_PERM,
4707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4708 NL80211_FLAG_NEED_RTNL,
4711 .cmd = NL80211_CMD_DEL_MPATH,
4712 .doit = nl80211_del_mpath,
4713 .policy = nl80211_policy,
4714 .flags = GENL_ADMIN_PERM,
4715 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4716 NL80211_FLAG_NEED_RTNL,
4719 .cmd = NL80211_CMD_SET_BSS,
4720 .doit = nl80211_set_bss,
4721 .policy = nl80211_policy,
4722 .flags = GENL_ADMIN_PERM,
4723 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4724 NL80211_FLAG_NEED_RTNL,
4727 .cmd = NL80211_CMD_GET_REG,
4728 .doit = nl80211_get_reg,
4729 .policy = nl80211_policy,
4730 /* can be retrieved by unprivileged users */
4733 .cmd = NL80211_CMD_SET_REG,
4734 .doit = nl80211_set_reg,
4735 .policy = nl80211_policy,
4736 .flags = GENL_ADMIN_PERM,
4739 .cmd = NL80211_CMD_REQ_SET_REG,
4740 .doit = nl80211_req_set_reg,
4741 .policy = nl80211_policy,
4742 .flags = GENL_ADMIN_PERM,
4745 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4746 .doit = nl80211_get_mesh_params,
4747 .policy = nl80211_policy,
4748 /* can be retrieved by unprivileged users */
4749 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4750 NL80211_FLAG_NEED_RTNL,
4753 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4754 .doit = nl80211_set_mesh_params,
4755 .policy = nl80211_policy,
4756 .flags = GENL_ADMIN_PERM,
4757 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4758 NL80211_FLAG_NEED_RTNL,
4761 .cmd = NL80211_CMD_TRIGGER_SCAN,
4762 .doit = nl80211_trigger_scan,
4763 .policy = nl80211_policy,
4764 .flags = GENL_ADMIN_PERM,
4765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4766 NL80211_FLAG_NEED_RTNL,
4769 .cmd = NL80211_CMD_GET_SCAN,
4770 .policy = nl80211_policy,
4771 .dumpit = nl80211_dump_scan,
4774 .cmd = NL80211_CMD_AUTHENTICATE,
4775 .doit = nl80211_authenticate,
4776 .policy = nl80211_policy,
4777 .flags = GENL_ADMIN_PERM,
4778 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4779 NL80211_FLAG_NEED_RTNL,
4782 .cmd = NL80211_CMD_ASSOCIATE,
4783 .doit = nl80211_associate,
4784 .policy = nl80211_policy,
4785 .flags = GENL_ADMIN_PERM,
4786 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4787 NL80211_FLAG_NEED_RTNL,
4790 .cmd = NL80211_CMD_DEAUTHENTICATE,
4791 .doit = nl80211_deauthenticate,
4792 .policy = nl80211_policy,
4793 .flags = GENL_ADMIN_PERM,
4794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4795 NL80211_FLAG_NEED_RTNL,
4798 .cmd = NL80211_CMD_DISASSOCIATE,
4799 .doit = nl80211_disassociate,
4800 .policy = nl80211_policy,
4801 .flags = GENL_ADMIN_PERM,
4802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4803 NL80211_FLAG_NEED_RTNL,
4806 .cmd = NL80211_CMD_JOIN_IBSS,
4807 .doit = nl80211_join_ibss,
4808 .policy = nl80211_policy,
4809 .flags = GENL_ADMIN_PERM,
4810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4811 NL80211_FLAG_NEED_RTNL,
4814 .cmd = NL80211_CMD_LEAVE_IBSS,
4815 .doit = nl80211_leave_ibss,
4816 .policy = nl80211_policy,
4817 .flags = GENL_ADMIN_PERM,
4818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4819 NL80211_FLAG_NEED_RTNL,
4821 #ifdef CONFIG_NL80211_TESTMODE
4823 .cmd = NL80211_CMD_TESTMODE,
4824 .doit = nl80211_testmode_do,
4825 .policy = nl80211_policy,
4826 .flags = GENL_ADMIN_PERM,
4827 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4828 NL80211_FLAG_NEED_RTNL,
4832 .cmd = NL80211_CMD_CONNECT,
4833 .doit = nl80211_connect,
4834 .policy = nl80211_policy,
4835 .flags = GENL_ADMIN_PERM,
4836 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4837 NL80211_FLAG_NEED_RTNL,
4840 .cmd = NL80211_CMD_DISCONNECT,
4841 .doit = nl80211_disconnect,
4842 .policy = nl80211_policy,
4843 .flags = GENL_ADMIN_PERM,
4844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4845 NL80211_FLAG_NEED_RTNL,
4848 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4849 .doit = nl80211_wiphy_netns,
4850 .policy = nl80211_policy,
4851 .flags = GENL_ADMIN_PERM,
4852 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4853 NL80211_FLAG_NEED_RTNL,
4856 .cmd = NL80211_CMD_GET_SURVEY,
4857 .policy = nl80211_policy,
4858 .dumpit = nl80211_dump_survey,
4861 .cmd = NL80211_CMD_SET_PMKSA,
4862 .doit = nl80211_setdel_pmksa,
4863 .policy = nl80211_policy,
4864 .flags = GENL_ADMIN_PERM,
4865 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4866 NL80211_FLAG_NEED_RTNL,
4869 .cmd = NL80211_CMD_DEL_PMKSA,
4870 .doit = nl80211_setdel_pmksa,
4871 .policy = nl80211_policy,
4872 .flags = GENL_ADMIN_PERM,
4873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4874 NL80211_FLAG_NEED_RTNL,
4877 .cmd = NL80211_CMD_FLUSH_PMKSA,
4878 .doit = nl80211_flush_pmksa,
4879 .policy = nl80211_policy,
4880 .flags = GENL_ADMIN_PERM,
4881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4882 NL80211_FLAG_NEED_RTNL,
4885 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4886 .doit = nl80211_remain_on_channel,
4887 .policy = nl80211_policy,
4888 .flags = GENL_ADMIN_PERM,
4889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4890 NL80211_FLAG_NEED_RTNL,
4893 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4894 .doit = nl80211_cancel_remain_on_channel,
4895 .policy = nl80211_policy,
4896 .flags = GENL_ADMIN_PERM,
4897 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4898 NL80211_FLAG_NEED_RTNL,
4901 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
4902 .doit = nl80211_set_tx_bitrate_mask,
4903 .policy = nl80211_policy,
4904 .flags = GENL_ADMIN_PERM,
4905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4906 NL80211_FLAG_NEED_RTNL,
4909 .cmd = NL80211_CMD_REGISTER_FRAME,
4910 .doit = nl80211_register_mgmt,
4911 .policy = nl80211_policy,
4912 .flags = GENL_ADMIN_PERM,
4913 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4914 NL80211_FLAG_NEED_RTNL,
4917 .cmd = NL80211_CMD_FRAME,
4918 .doit = nl80211_tx_mgmt,
4919 .policy = nl80211_policy,
4920 .flags = GENL_ADMIN_PERM,
4921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4922 NL80211_FLAG_NEED_RTNL,
4925 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
4926 .doit = nl80211_tx_mgmt_cancel_wait,
4927 .policy = nl80211_policy,
4928 .flags = GENL_ADMIN_PERM,
4929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4930 NL80211_FLAG_NEED_RTNL,
4933 .cmd = NL80211_CMD_SET_POWER_SAVE,
4934 .doit = nl80211_set_power_save,
4935 .policy = nl80211_policy,
4936 .flags = GENL_ADMIN_PERM,
4937 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4938 NL80211_FLAG_NEED_RTNL,
4941 .cmd = NL80211_CMD_GET_POWER_SAVE,
4942 .doit = nl80211_get_power_save,
4943 .policy = nl80211_policy,
4944 /* can be retrieved by unprivileged users */
4945 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4946 NL80211_FLAG_NEED_RTNL,
4949 .cmd = NL80211_CMD_SET_CQM,
4950 .doit = nl80211_set_cqm,
4951 .policy = nl80211_policy,
4952 .flags = GENL_ADMIN_PERM,
4953 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4954 NL80211_FLAG_NEED_RTNL,
4957 .cmd = NL80211_CMD_SET_CHANNEL,
4958 .doit = nl80211_set_channel,
4959 .policy = nl80211_policy,
4960 .flags = GENL_ADMIN_PERM,
4961 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4962 NL80211_FLAG_NEED_RTNL,
4965 .cmd = NL80211_CMD_SET_WDS_PEER,
4966 .doit = nl80211_set_wds_peer,
4967 .policy = nl80211_policy,
4968 .flags = GENL_ADMIN_PERM,
4969 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4970 NL80211_FLAG_NEED_RTNL,
4974 static struct genl_multicast_group nl80211_mlme_mcgrp = {
4978 /* multicast groups */
4979 static struct genl_multicast_group nl80211_config_mcgrp = {
4982 static struct genl_multicast_group nl80211_scan_mcgrp = {
4985 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4986 .name = "regulatory",
4989 /* notification functions */
4991 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4993 struct sk_buff *msg;
4995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4999 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5004 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5005 nl80211_config_mcgrp.id, GFP_KERNEL);
5008 static int nl80211_add_scan_req(struct sk_buff *msg,
5009 struct cfg80211_registered_device *rdev)
5011 struct cfg80211_scan_request *req = rdev->scan_req;
5012 struct nlattr *nest;
5015 ASSERT_RDEV_LOCK(rdev);
5020 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5022 goto nla_put_failure;
5023 for (i = 0; i < req->n_ssids; i++)
5024 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5025 nla_nest_end(msg, nest);
5027 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5029 goto nla_put_failure;
5030 for (i = 0; i < req->n_channels; i++)
5031 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5032 nla_nest_end(msg, nest);
5035 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5042 static int nl80211_send_scan_msg(struct sk_buff *msg,
5043 struct cfg80211_registered_device *rdev,
5044 struct net_device *netdev,
5045 u32 pid, u32 seq, int flags,
5050 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5054 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5055 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5057 /* ignore errors and send incomplete event anyway */
5058 nl80211_add_scan_req(msg, rdev);
5060 return genlmsg_end(msg, hdr);
5063 genlmsg_cancel(msg, hdr);
5067 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5068 struct net_device *netdev)
5070 struct sk_buff *msg;
5072 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5076 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5077 NL80211_CMD_TRIGGER_SCAN) < 0) {
5082 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5083 nl80211_scan_mcgrp.id, GFP_KERNEL);
5086 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5087 struct net_device *netdev)
5089 struct sk_buff *msg;
5091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5095 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5096 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
5101 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5102 nl80211_scan_mcgrp.id, GFP_KERNEL);
5105 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5106 struct net_device *netdev)
5108 struct sk_buff *msg;
5110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5114 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5115 NL80211_CMD_SCAN_ABORTED) < 0) {
5120 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5121 nl80211_scan_mcgrp.id, GFP_KERNEL);
5125 * This can happen on global regulatory changes or device specific settings
5126 * based on custom world regulatory domains.
5128 void nl80211_send_reg_change_event(struct regulatory_request *request)
5130 struct sk_buff *msg;
5133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5137 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5143 /* Userspace can always count this one always being set */
5144 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5146 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5147 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5148 NL80211_REGDOM_TYPE_WORLD);
5149 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5150 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5151 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5152 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5154 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5155 NL80211_REGDOM_TYPE_INTERSECTION);
5157 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5158 NL80211_REGDOM_TYPE_COUNTRY);
5159 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5162 if (wiphy_idx_valid(request->wiphy_idx))
5163 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5165 if (genlmsg_end(msg, hdr) < 0) {
5171 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5178 genlmsg_cancel(msg, hdr);
5182 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5183 struct net_device *netdev,
5184 const u8 *buf, size_t len,
5185 enum nl80211_commands cmd, gfp_t gfp)
5187 struct sk_buff *msg;
5190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5194 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5200 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5201 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5202 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5204 if (genlmsg_end(msg, hdr) < 0) {
5209 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5210 nl80211_mlme_mcgrp.id, gfp);
5214 genlmsg_cancel(msg, hdr);
5218 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
5219 struct net_device *netdev, const u8 *buf,
5220 size_t len, gfp_t gfp)
5222 nl80211_send_mlme_event(rdev, netdev, buf, len,
5223 NL80211_CMD_AUTHENTICATE, gfp);
5226 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5227 struct net_device *netdev, const u8 *buf,
5228 size_t len, gfp_t gfp)
5230 nl80211_send_mlme_event(rdev, netdev, buf, len,
5231 NL80211_CMD_ASSOCIATE, gfp);
5234 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
5235 struct net_device *netdev, const u8 *buf,
5236 size_t len, gfp_t gfp)
5238 nl80211_send_mlme_event(rdev, netdev, buf, len,
5239 NL80211_CMD_DEAUTHENTICATE, gfp);
5242 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5243 struct net_device *netdev, const u8 *buf,
5244 size_t len, gfp_t gfp)
5246 nl80211_send_mlme_event(rdev, netdev, buf, len,
5247 NL80211_CMD_DISASSOCIATE, gfp);
5250 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5251 struct net_device *netdev, int cmd,
5252 const u8 *addr, gfp_t gfp)
5254 struct sk_buff *msg;
5257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5261 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5267 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5268 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5269 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5270 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5272 if (genlmsg_end(msg, hdr) < 0) {
5277 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5278 nl80211_mlme_mcgrp.id, gfp);
5282 genlmsg_cancel(msg, hdr);
5286 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
5287 struct net_device *netdev, const u8 *addr,
5290 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
5294 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
5295 struct net_device *netdev, const u8 *addr,
5298 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5302 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5303 struct net_device *netdev, const u8 *bssid,
5304 const u8 *req_ie, size_t req_ie_len,
5305 const u8 *resp_ie, size_t resp_ie_len,
5306 u16 status, gfp_t gfp)
5308 struct sk_buff *msg;
5311 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5321 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5322 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5324 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5325 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5327 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5329 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5331 if (genlmsg_end(msg, hdr) < 0) {
5336 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5337 nl80211_mlme_mcgrp.id, gfp);
5341 genlmsg_cancel(msg, hdr);
5346 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5347 struct net_device *netdev, const u8 *bssid,
5348 const u8 *req_ie, size_t req_ie_len,
5349 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5351 struct sk_buff *msg;
5354 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5364 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5366 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5368 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5370 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5372 if (genlmsg_end(msg, hdr) < 0) {
5377 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5378 nl80211_mlme_mcgrp.id, gfp);
5382 genlmsg_cancel(msg, hdr);
5387 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5388 struct net_device *netdev, u16 reason,
5389 const u8 *ie, size_t ie_len, bool from_ap)
5391 struct sk_buff *msg;
5394 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5398 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5404 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5405 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5406 if (from_ap && reason)
5407 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5409 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5411 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5413 if (genlmsg_end(msg, hdr) < 0) {
5418 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5419 nl80211_mlme_mcgrp.id, GFP_KERNEL);
5423 genlmsg_cancel(msg, hdr);
5428 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5429 struct net_device *netdev, const u8 *bssid,
5432 struct sk_buff *msg;
5435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5445 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5446 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5447 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5449 if (genlmsg_end(msg, hdr) < 0) {
5454 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5455 nl80211_mlme_mcgrp.id, gfp);
5459 genlmsg_cancel(msg, hdr);
5463 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5464 struct net_device *netdev, const u8 *addr,
5465 enum nl80211_key_type key_type, int key_id,
5466 const u8 *tsc, gfp_t gfp)
5468 struct sk_buff *msg;
5471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5475 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5481 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5482 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5484 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5485 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5486 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5488 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5490 if (genlmsg_end(msg, hdr) < 0) {
5495 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5496 nl80211_mlme_mcgrp.id, gfp);
5500 genlmsg_cancel(msg, hdr);
5504 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5505 struct ieee80211_channel *channel_before,
5506 struct ieee80211_channel *channel_after)
5508 struct sk_buff *msg;
5510 struct nlattr *nl_freq;
5512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
5516 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5523 * Since we are applying the beacon hint to a wiphy we know its
5524 * wiphy_idx is valid
5526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5529 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5531 goto nla_put_failure;
5532 if (nl80211_msg_put_channel(msg, channel_before))
5533 goto nla_put_failure;
5534 nla_nest_end(msg, nl_freq);
5537 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5539 goto nla_put_failure;
5540 if (nl80211_msg_put_channel(msg, channel_after))
5541 goto nla_put_failure;
5542 nla_nest_end(msg, nl_freq);
5544 if (genlmsg_end(msg, hdr) < 0) {
5550 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5557 genlmsg_cancel(msg, hdr);
5561 static void nl80211_send_remain_on_chan_event(
5562 int cmd, struct cfg80211_registered_device *rdev,
5563 struct net_device *netdev, u64 cookie,
5564 struct ieee80211_channel *chan,
5565 enum nl80211_channel_type channel_type,
5566 unsigned int duration, gfp_t gfp)
5568 struct sk_buff *msg;
5571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5575 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5581 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5582 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5583 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5584 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5585 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5587 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5588 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5590 if (genlmsg_end(msg, hdr) < 0) {
5595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5596 nl80211_mlme_mcgrp.id, gfp);
5600 genlmsg_cancel(msg, hdr);
5604 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5605 struct net_device *netdev, u64 cookie,
5606 struct ieee80211_channel *chan,
5607 enum nl80211_channel_type channel_type,
5608 unsigned int duration, gfp_t gfp)
5610 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5611 rdev, netdev, cookie, chan,
5612 channel_type, duration, gfp);
5615 void nl80211_send_remain_on_channel_cancel(
5616 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5617 u64 cookie, struct ieee80211_channel *chan,
5618 enum nl80211_channel_type channel_type, gfp_t gfp)
5620 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5621 rdev, netdev, cookie, chan,
5622 channel_type, 0, gfp);
5625 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5626 struct net_device *dev, const u8 *mac_addr,
5627 struct station_info *sinfo, gfp_t gfp)
5629 struct sk_buff *msg;
5631 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5635 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5640 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5641 nl80211_mlme_mcgrp.id, gfp);
5644 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5645 struct net_device *netdev, u32 nlpid,
5646 int freq, const u8 *buf, size_t len, gfp_t gfp)
5648 struct sk_buff *msg;
5652 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5656 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
5662 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5664 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5665 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5667 err = genlmsg_end(msg, hdr);
5673 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5679 genlmsg_cancel(msg, hdr);
5684 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5685 struct net_device *netdev, u64 cookie,
5686 const u8 *buf, size_t len, bool ack,
5689 struct sk_buff *msg;
5692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5696 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
5702 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5703 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5704 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5705 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5707 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5709 if (genlmsg_end(msg, hdr) < 0) {
5714 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5718 genlmsg_cancel(msg, hdr);
5723 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5724 struct net_device *netdev,
5725 enum nl80211_cqm_rssi_threshold_event rssi_event,
5728 struct sk_buff *msg;
5729 struct nlattr *pinfoattr;
5732 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5736 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5742 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5745 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5747 goto nla_put_failure;
5749 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5752 nla_nest_end(msg, pinfoattr);
5754 if (genlmsg_end(msg, hdr) < 0) {
5759 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5760 nl80211_mlme_mcgrp.id, gfp);
5764 genlmsg_cancel(msg, hdr);
5769 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
5770 struct net_device *netdev, const u8 *peer,
5771 u32 num_packets, gfp_t gfp)
5773 struct sk_buff *msg;
5774 struct nlattr *pinfoattr;
5777 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5787 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5788 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5789 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
5791 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5793 goto nla_put_failure;
5795 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
5797 nla_nest_end(msg, pinfoattr);
5799 if (genlmsg_end(msg, hdr) < 0) {
5804 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5805 nl80211_mlme_mcgrp.id, gfp);
5809 genlmsg_cancel(msg, hdr);
5813 static int nl80211_netlink_notify(struct notifier_block * nb,
5814 unsigned long state,
5817 struct netlink_notify *notify = _notify;
5818 struct cfg80211_registered_device *rdev;
5819 struct wireless_dev *wdev;
5821 if (state != NETLINK_URELEASE)
5826 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5827 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
5828 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5835 static struct notifier_block nl80211_netlink_notifier = {
5836 .notifier_call = nl80211_netlink_notify,
5839 /* initialisation/exit functions */
5841 int nl80211_init(void)
5845 err = genl_register_family_with_ops(&nl80211_fam,
5846 nl80211_ops, ARRAY_SIZE(nl80211_ops));
5850 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5854 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5858 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5862 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5866 #ifdef CONFIG_NL80211_TESTMODE
5867 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5872 err = netlink_register_notifier(&nl80211_netlink_notifier);
5878 genl_unregister_family(&nl80211_fam);
5882 void nl80211_exit(void)
5884 netlink_unregister_notifier(&nl80211_netlink_notifier);
5885 genl_unregister_family(&nl80211_fam);