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nl80211: Use nl80211_drv_msg() helper
[thirdparty/hostap.git] / src / drivers / driver_nl80211_capa.c
1 /*
2 * Driver interaction with Linux nl80211/cfg80211 - Capabilities
3 * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (c) 2009-2010, Atheros Communications
6 *
7 * This software may be distributed under the terms of the BSD license.
8 * See README for more details.
9 */
10
11 #include "includes.h"
12 #include <netlink/genl/genl.h>
13
14 #include "utils/common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/ieee802_11_common.h"
17 #include "common/qca-vendor.h"
18 #include "common/qca-vendor-attr.h"
19 #include "driver_nl80211.h"
20
21
22 static int protocol_feature_handler(struct nl_msg *msg, void *arg)
23 {
24 u32 *feat = arg;
25 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
26 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
27
28 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
29 genlmsg_attrlen(gnlh, 0), NULL);
30
31 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
32 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
33
34 return NL_SKIP;
35 }
36
37
38 static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
39 {
40 u32 feat = 0;
41 struct nl_msg *msg;
42
43 msg = nlmsg_alloc();
44 if (!msg)
45 return 0;
46
47 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES)) {
48 nlmsg_free(msg);
49 return 0;
50 }
51
52 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
53 return feat;
54
55 return 0;
56 }
57
58
59 struct wiphy_info_data {
60 struct wpa_driver_nl80211_data *drv;
61 struct wpa_driver_capa *capa;
62
63 unsigned int num_multichan_concurrent;
64
65 unsigned int error:1;
66 unsigned int device_ap_sme:1;
67 unsigned int poll_command_supported:1;
68 unsigned int data_tx_status:1;
69 unsigned int monitor_supported:1;
70 unsigned int auth_supported:1;
71 unsigned int connect_supported:1;
72 unsigned int p2p_go_supported:1;
73 unsigned int p2p_client_supported:1;
74 unsigned int p2p_concurrent:1;
75 unsigned int channel_switch_supported:1;
76 unsigned int set_qos_map_supported:1;
77 unsigned int have_low_prio_scan:1;
78 unsigned int wmm_ac_supported:1;
79 };
80
81
82 static unsigned int probe_resp_offload_support(int supp_protocols)
83 {
84 unsigned int prot = 0;
85
86 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
87 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
88 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
89 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
90 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
91 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
92 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
93 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
94
95 return prot;
96 }
97
98
99 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
100 struct nlattr *tb)
101 {
102 struct nlattr *nl_mode;
103 int i;
104
105 if (tb == NULL)
106 return;
107
108 nla_for_each_nested(nl_mode, tb, i) {
109 switch (nla_type(nl_mode)) {
110 case NL80211_IFTYPE_AP:
111 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
112 break;
113 case NL80211_IFTYPE_MESH_POINT:
114 info->capa->flags |= WPA_DRIVER_FLAGS_MESH;
115 break;
116 case NL80211_IFTYPE_ADHOC:
117 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
118 break;
119 case NL80211_IFTYPE_P2P_DEVICE:
120 info->capa->flags |=
121 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
122 break;
123 case NL80211_IFTYPE_P2P_GO:
124 info->p2p_go_supported = 1;
125 break;
126 case NL80211_IFTYPE_P2P_CLIENT:
127 info->p2p_client_supported = 1;
128 break;
129 case NL80211_IFTYPE_MONITOR:
130 info->monitor_supported = 1;
131 break;
132 }
133 }
134 }
135
136
137 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
138 struct nlattr *nl_combi)
139 {
140 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
141 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
142 struct nlattr *nl_limit, *nl_mode;
143 int err, rem_limit, rem_mode;
144 int combination_has_p2p = 0, combination_has_mgd = 0;
145 static struct nla_policy
146 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
147 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
148 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
149 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
150 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
151 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
152 },
153 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
154 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
155 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
156 };
157
158 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
159 nl_combi, iface_combination_policy);
160 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
161 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
162 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
163 return 0; /* broken combination */
164
165 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
166 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
167
168 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
169 rem_limit) {
170 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
171 nl_limit, iface_limit_policy);
172 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
173 return 0; /* broken combination */
174
175 nla_for_each_nested(nl_mode,
176 tb_limit[NL80211_IFACE_LIMIT_TYPES],
177 rem_mode) {
178 int ift = nla_type(nl_mode);
179 if (ift == NL80211_IFTYPE_P2P_GO ||
180 ift == NL80211_IFTYPE_P2P_CLIENT)
181 combination_has_p2p = 1;
182 if (ift == NL80211_IFTYPE_STATION)
183 combination_has_mgd = 1;
184 }
185 if (combination_has_p2p && combination_has_mgd)
186 break;
187 }
188
189 if (combination_has_p2p && combination_has_mgd) {
190 unsigned int num_channels =
191 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
192
193 info->p2p_concurrent = 1;
194 if (info->num_multichan_concurrent < num_channels)
195 info->num_multichan_concurrent = num_channels;
196 }
197
198 return 0;
199 }
200
201
202 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
203 struct nlattr *tb)
204 {
205 struct nlattr *nl_combi;
206 int rem_combi;
207
208 if (tb == NULL)
209 return;
210
211 nla_for_each_nested(nl_combi, tb, rem_combi) {
212 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
213 break;
214 }
215 }
216
217
218 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
219 struct nlattr *tb)
220 {
221 struct nlattr *nl_cmd;
222 int i;
223
224 if (tb == NULL)
225 return;
226
227 nla_for_each_nested(nl_cmd, tb, i) {
228 switch (nla_get_u32(nl_cmd)) {
229 case NL80211_CMD_AUTHENTICATE:
230 info->auth_supported = 1;
231 break;
232 case NL80211_CMD_CONNECT:
233 info->connect_supported = 1;
234 break;
235 case NL80211_CMD_START_SCHED_SCAN:
236 info->capa->sched_scan_supported = 1;
237 break;
238 case NL80211_CMD_PROBE_CLIENT:
239 info->poll_command_supported = 1;
240 break;
241 case NL80211_CMD_CHANNEL_SWITCH:
242 info->channel_switch_supported = 1;
243 break;
244 case NL80211_CMD_SET_QOS_MAP:
245 info->set_qos_map_supported = 1;
246 break;
247 }
248 }
249 }
250
251
252 static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
253 struct nlattr *tb)
254 {
255 int i, num;
256 u32 *ciphers;
257
258 if (tb == NULL)
259 return;
260
261 num = nla_len(tb) / sizeof(u32);
262 ciphers = nla_data(tb);
263 for (i = 0; i < num; i++) {
264 u32 c = ciphers[i];
265
266 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
267 c >> 24, (c >> 16) & 0xff,
268 (c >> 8) & 0xff, c & 0xff);
269 switch (c) {
270 case WLAN_CIPHER_SUITE_CCMP_256:
271 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
272 break;
273 case WLAN_CIPHER_SUITE_GCMP_256:
274 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
275 break;
276 case WLAN_CIPHER_SUITE_CCMP:
277 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
278 break;
279 case WLAN_CIPHER_SUITE_GCMP:
280 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
281 break;
282 case WLAN_CIPHER_SUITE_TKIP:
283 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
284 break;
285 case WLAN_CIPHER_SUITE_WEP104:
286 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
287 break;
288 case WLAN_CIPHER_SUITE_WEP40:
289 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
290 break;
291 case WLAN_CIPHER_SUITE_AES_CMAC:
292 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
293 break;
294 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
295 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
296 break;
297 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
298 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
299 break;
300 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
301 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
302 break;
303 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR:
304 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
305 break;
306 }
307 }
308 }
309
310
311 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
312 struct nlattr *tb)
313 {
314 if (tb)
315 capa->max_remain_on_chan = nla_get_u32(tb);
316 }
317
318
319 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
320 struct nlattr *ext_setup)
321 {
322 if (tdls == NULL)
323 return;
324
325 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
326 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
327
328 if (ext_setup) {
329 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
330 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
331 }
332 }
333
334
335 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
336 struct nlattr *tb)
337 {
338 u32 flags;
339 struct wpa_driver_capa *capa = info->capa;
340
341 if (tb == NULL)
342 return;
343
344 flags = nla_get_u32(tb);
345
346 if (flags & NL80211_FEATURE_SK_TX_STATUS)
347 info->data_tx_status = 1;
348
349 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
350 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
351
352 if (flags & NL80211_FEATURE_SAE)
353 capa->flags |= WPA_DRIVER_FLAGS_SAE;
354
355 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
356 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
357
358 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
359 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
360
361 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
362 info->have_low_prio_scan = 1;
363
364 if (flags & NL80211_FEATURE_STATIC_SMPS)
365 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
366
367 if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
368 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
369
370 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
371 info->wmm_ac_supported = 1;
372
373 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES)
374 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES;
375
376 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES)
377 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES;
378
379 if (flags & NL80211_FEATURE_QUIET)
380 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET;
381
382 if (flags & NL80211_FEATURE_TX_POWER_INSERTION)
383 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION;
384 }
385
386
387 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
388 struct nlattr *tb)
389 {
390 u32 protocols;
391
392 if (tb == NULL)
393 return;
394
395 protocols = nla_get_u32(tb);
396 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
397 "mode");
398 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
399 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
400 }
401
402
403 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
404 struct nlattr *tb)
405 {
406 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
407
408 if (tb == NULL)
409 return;
410
411 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
412 tb, NULL))
413 return;
414
415 if (triggers[NL80211_WOWLAN_TRIG_ANY])
416 capa->wowlan_triggers.any = 1;
417 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
418 capa->wowlan_triggers.disconnect = 1;
419 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
420 capa->wowlan_triggers.magic_pkt = 1;
421 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
422 capa->wowlan_triggers.gtk_rekey_failure = 1;
423 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
424 capa->wowlan_triggers.eap_identity_req = 1;
425 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
426 capa->wowlan_triggers.four_way_handshake = 1;
427 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
428 capa->wowlan_triggers.rfkill_release = 1;
429 }
430
431
432 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
433 {
434 struct nlattr *tb[NL80211_ATTR_MAX + 1];
435 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
436 struct wiphy_info_data *info = arg;
437 struct wpa_driver_capa *capa = info->capa;
438 struct wpa_driver_nl80211_data *drv = info->drv;
439
440 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
441 genlmsg_attrlen(gnlh, 0), NULL);
442
443 if (tb[NL80211_ATTR_WIPHY_NAME])
444 os_strlcpy(drv->phyname,
445 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
446 sizeof(drv->phyname));
447 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
448 capa->max_scan_ssids =
449 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
450
451 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
452 capa->max_sched_scan_ssids =
453 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
454
455 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
456 capa->max_match_sets =
457 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
458
459 if (tb[NL80211_ATTR_MAC_ACL_MAX])
460 capa->max_acl_mac_addrs =
461 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
462
463 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
464 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
465 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
466 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
467
468 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
469 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
470 "off-channel TX");
471 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
472 }
473
474 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
475 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
476 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
477 }
478
479 wiphy_info_max_roc(capa,
480 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
481
482 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
483 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
484
485 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
486 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
487
488 if (tb[NL80211_ATTR_DEVICE_AP_SME])
489 info->device_ap_sme = 1;
490
491 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
492 wiphy_info_probe_resp_offload(capa,
493 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
494
495 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
496 drv->extended_capa == NULL) {
497 drv->extended_capa =
498 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
499 if (drv->extended_capa) {
500 os_memcpy(drv->extended_capa,
501 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
502 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
503 drv->extended_capa_len =
504 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
505 }
506 drv->extended_capa_mask =
507 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
508 if (drv->extended_capa_mask) {
509 os_memcpy(drv->extended_capa_mask,
510 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
511 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
512 } else {
513 os_free(drv->extended_capa);
514 drv->extended_capa = NULL;
515 drv->extended_capa_len = 0;
516 }
517 }
518
519 if (tb[NL80211_ATTR_VENDOR_DATA]) {
520 struct nlattr *nl;
521 int rem;
522
523 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
524 struct nl80211_vendor_cmd_info *vinfo;
525 if (nla_len(nl) != sizeof(*vinfo)) {
526 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
527 continue;
528 }
529 vinfo = nla_data(nl);
530 switch (vinfo->subcmd) {
531 case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
532 drv->roaming_vendor_cmd_avail = 1;
533 break;
534 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
535 drv->dfs_vendor_cmd_avail = 1;
536 break;
537 case QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY:
538 drv->key_mgmt_set_key_vendor_cmd_avail = 1;
539 break;
540 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
541 drv->capa.flags |= WPA_DRIVER_FLAGS_ACS_OFFLOAD;
542 break;
543 }
544
545 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
546 vinfo->vendor_id, vinfo->subcmd);
547 }
548 }
549
550 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
551 struct nlattr *nl;
552 int rem;
553
554 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
555 struct nl80211_vendor_cmd_info *vinfo;
556 if (nla_len(nl) != sizeof(*vinfo)) {
557 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
558 continue;
559 }
560 vinfo = nla_data(nl);
561 if (vinfo->subcmd ==
562 QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH)
563 drv->roam_auth_vendor_event_avail = 1;
564 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
565 vinfo->vendor_id, vinfo->subcmd);
566 }
567 }
568
569 wiphy_info_wowlan_triggers(capa,
570 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
571
572 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
573 capa->max_stations =
574 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
575
576 return NL_SKIP;
577 }
578
579
580 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
581 struct wiphy_info_data *info)
582 {
583 u32 feat;
584 struct nl_msg *msg;
585 int flags = 0;
586
587 os_memset(info, 0, sizeof(*info));
588 info->capa = &drv->capa;
589 info->drv = drv;
590
591 feat = get_nl80211_protocol_features(drv);
592 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
593 flags = NLM_F_DUMP;
594 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
595 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
596 nlmsg_free(msg);
597 return -1;
598 }
599
600 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
601 return -1;
602
603 if (info->auth_supported)
604 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
605 else if (!info->connect_supported) {
606 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
607 "authentication/association or connect commands");
608 info->error = 1;
609 }
610
611 if (info->p2p_go_supported && info->p2p_client_supported)
612 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
613 if (info->p2p_concurrent) {
614 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
615 "interface (driver advertised support)");
616 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
617 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
618 }
619 if (info->num_multichan_concurrent > 1) {
620 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
621 "concurrent (driver advertised support)");
622 drv->capa.num_multichan_concurrent =
623 info->num_multichan_concurrent;
624 }
625 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
626 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
627
628 /* default to 5000 since early versions of mac80211 don't set it */
629 if (!drv->capa.max_remain_on_chan)
630 drv->capa.max_remain_on_chan = 5000;
631
632 if (info->channel_switch_supported)
633 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
634 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
635
636 return 0;
637 }
638
639
640 static int dfs_info_handler(struct nl_msg *msg, void *arg)
641 {
642 struct nlattr *tb[NL80211_ATTR_MAX + 1];
643 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
644 int *dfs_capability_ptr = arg;
645
646 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
647 genlmsg_attrlen(gnlh, 0), NULL);
648
649 if (tb[NL80211_ATTR_VENDOR_DATA]) {
650 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
651 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
652
653 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
654 nla_data(nl_vend), nla_len(nl_vend), NULL);
655
656 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
657 u32 val;
658 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
659 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
660 val);
661 *dfs_capability_ptr = val;
662 }
663 }
664
665 return NL_SKIP;
666 }
667
668
669 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
670 {
671 struct nl_msg *msg;
672 int dfs_capability = 0;
673 int ret;
674
675 if (!drv->dfs_vendor_cmd_avail)
676 return;
677
678 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
679 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
680 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
681 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
682 nlmsg_free(msg);
683 return;
684 }
685
686 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
687 if (!ret && dfs_capability)
688 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
689 }
690
691
692 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
693 {
694 struct wiphy_info_data info;
695 if (wpa_driver_nl80211_get_info(drv, &info))
696 return -1;
697
698 if (info.error)
699 return -1;
700
701 drv->has_capability = 1;
702 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
703 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
704 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
705 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
706 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
707 WPA_DRIVER_AUTH_SHARED |
708 WPA_DRIVER_AUTH_LEAP;
709
710 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
711 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
712 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
713
714 /*
715 * As all cfg80211 drivers must support cases where the AP interface is
716 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
717 * case that the user space daemon has crashed, they must be able to
718 * cleanup all stations and key entries in the AP tear down flow. Thus,
719 * this flag can/should always be set for cfg80211 drivers.
720 */
721 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
722
723 if (!info.device_ap_sme) {
724 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
725
726 /*
727 * No AP SME is currently assumed to also indicate no AP MLME
728 * in the driver/firmware.
729 */
730 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
731 }
732
733 drv->device_ap_sme = info.device_ap_sme;
734 drv->poll_command_supported = info.poll_command_supported;
735 drv->data_tx_status = info.data_tx_status;
736 if (info.set_qos_map_supported)
737 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
738 drv->have_low_prio_scan = info.have_low_prio_scan;
739
740 /*
741 * If poll command and tx status are supported, mac80211 is new enough
742 * to have everything we need to not need monitor interfaces.
743 */
744 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
745
746 if (drv->device_ap_sme && drv->use_monitor) {
747 /*
748 * Non-mac80211 drivers may not support monitor interface.
749 * Make sure we do not get stuck with incorrect capability here
750 * by explicitly testing this.
751 */
752 if (!info.monitor_supported) {
753 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
754 "with device_ap_sme since no monitor mode "
755 "support detected");
756 drv->use_monitor = 0;
757 }
758 }
759
760 /*
761 * If we aren't going to use monitor interfaces, but the
762 * driver doesn't support data TX status, we won't get TX
763 * status for EAPOL frames.
764 */
765 if (!drv->use_monitor && !info.data_tx_status)
766 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
767
768 qca_nl80211_check_dfs_capa(drv);
769
770 return 0;
771 }
772
773
774 struct phy_info_arg {
775 u16 *num_modes;
776 struct hostapd_hw_modes *modes;
777 int last_mode, last_chan_idx;
778 };
779
780 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
781 struct nlattr *ampdu_factor,
782 struct nlattr *ampdu_density,
783 struct nlattr *mcs_set)
784 {
785 if (capa)
786 mode->ht_capab = nla_get_u16(capa);
787
788 if (ampdu_factor)
789 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
790
791 if (ampdu_density)
792 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
793
794 if (mcs_set && nla_len(mcs_set) >= 16) {
795 u8 *mcs;
796 mcs = nla_data(mcs_set);
797 os_memcpy(mode->mcs_set, mcs, 16);
798 }
799 }
800
801
802 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
803 struct nlattr *capa,
804 struct nlattr *mcs_set)
805 {
806 if (capa)
807 mode->vht_capab = nla_get_u32(capa);
808
809 if (mcs_set && nla_len(mcs_set) >= 8) {
810 u8 *mcs;
811 mcs = nla_data(mcs_set);
812 os_memcpy(mode->vht_mcs_set, mcs, 8);
813 }
814 }
815
816
817 static void phy_info_freq(struct hostapd_hw_modes *mode,
818 struct hostapd_channel_data *chan,
819 struct nlattr *tb_freq[])
820 {
821 u8 channel;
822 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
823 chan->flag = 0;
824 chan->dfs_cac_ms = 0;
825 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
826 chan->chan = channel;
827
828 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
829 chan->flag |= HOSTAPD_CHAN_DISABLED;
830 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
831 chan->flag |= HOSTAPD_CHAN_NO_IR;
832 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
833 chan->flag |= HOSTAPD_CHAN_RADAR;
834 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
835 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
836 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
837 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
838
839 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
840 enum nl80211_dfs_state state =
841 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
842
843 switch (state) {
844 case NL80211_DFS_USABLE:
845 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
846 break;
847 case NL80211_DFS_AVAILABLE:
848 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
849 break;
850 case NL80211_DFS_UNAVAILABLE:
851 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
852 break;
853 }
854 }
855
856 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
857 chan->dfs_cac_ms = nla_get_u32(
858 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
859 }
860 }
861
862
863 static int phy_info_freqs(struct phy_info_arg *phy_info,
864 struct hostapd_hw_modes *mode, struct nlattr *tb)
865 {
866 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
867 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
868 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
869 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
870 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
871 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
872 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
873 };
874 int new_channels = 0;
875 struct hostapd_channel_data *channel;
876 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
877 struct nlattr *nl_freq;
878 int rem_freq, idx;
879
880 if (tb == NULL)
881 return NL_OK;
882
883 nla_for_each_nested(nl_freq, tb, rem_freq) {
884 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
885 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
886 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
887 continue;
888 new_channels++;
889 }
890
891 channel = os_realloc_array(mode->channels,
892 mode->num_channels + new_channels,
893 sizeof(struct hostapd_channel_data));
894 if (!channel)
895 return NL_SKIP;
896
897 mode->channels = channel;
898 mode->num_channels += new_channels;
899
900 idx = phy_info->last_chan_idx;
901
902 nla_for_each_nested(nl_freq, tb, rem_freq) {
903 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
904 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
905 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
906 continue;
907 phy_info_freq(mode, &mode->channels[idx], tb_freq);
908 idx++;
909 }
910 phy_info->last_chan_idx = idx;
911
912 return NL_OK;
913 }
914
915
916 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
917 {
918 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
919 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
920 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
921 { .type = NLA_FLAG },
922 };
923 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
924 struct nlattr *nl_rate;
925 int rem_rate, idx;
926
927 if (tb == NULL)
928 return NL_OK;
929
930 nla_for_each_nested(nl_rate, tb, rem_rate) {
931 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
932 nla_data(nl_rate), nla_len(nl_rate),
933 rate_policy);
934 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
935 continue;
936 mode->num_rates++;
937 }
938
939 mode->rates = os_calloc(mode->num_rates, sizeof(int));
940 if (!mode->rates)
941 return NL_SKIP;
942
943 idx = 0;
944
945 nla_for_each_nested(nl_rate, tb, rem_rate) {
946 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
947 nla_data(nl_rate), nla_len(nl_rate),
948 rate_policy);
949 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
950 continue;
951 mode->rates[idx] = nla_get_u32(
952 tb_rate[NL80211_BITRATE_ATTR_RATE]);
953 idx++;
954 }
955
956 return NL_OK;
957 }
958
959
960 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
961 {
962 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
963 struct hostapd_hw_modes *mode;
964 int ret;
965
966 if (phy_info->last_mode != nl_band->nla_type) {
967 mode = os_realloc_array(phy_info->modes,
968 *phy_info->num_modes + 1,
969 sizeof(*mode));
970 if (!mode)
971 return NL_SKIP;
972 phy_info->modes = mode;
973
974 mode = &phy_info->modes[*(phy_info->num_modes)];
975 os_memset(mode, 0, sizeof(*mode));
976 mode->mode = NUM_HOSTAPD_MODES;
977 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
978 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
979
980 /*
981 * Unsupported VHT MCS stream is defined as value 3, so the VHT
982 * MCS RX/TX map must be initialized with 0xffff to mark all 8
983 * possible streams as unsupported. This will be overridden if
984 * driver advertises VHT support.
985 */
986 mode->vht_mcs_set[0] = 0xff;
987 mode->vht_mcs_set[1] = 0xff;
988 mode->vht_mcs_set[4] = 0xff;
989 mode->vht_mcs_set[5] = 0xff;
990
991 *(phy_info->num_modes) += 1;
992 phy_info->last_mode = nl_band->nla_type;
993 phy_info->last_chan_idx = 0;
994 } else
995 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
996
997 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
998 nla_len(nl_band), NULL);
999
1000 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1001 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1002 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1003 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1004 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1005 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1006 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1007 if (ret != NL_OK)
1008 return ret;
1009 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1010 if (ret != NL_OK)
1011 return ret;
1012
1013 return NL_OK;
1014 }
1015
1016
1017 static int phy_info_handler(struct nl_msg *msg, void *arg)
1018 {
1019 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1020 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1021 struct phy_info_arg *phy_info = arg;
1022 struct nlattr *nl_band;
1023 int rem_band;
1024
1025 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1026 genlmsg_attrlen(gnlh, 0), NULL);
1027
1028 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1029 return NL_SKIP;
1030
1031 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1032 {
1033 int res = phy_info_band(phy_info, nl_band);
1034 if (res != NL_OK)
1035 return res;
1036 }
1037
1038 return NL_SKIP;
1039 }
1040
1041
1042 static struct hostapd_hw_modes *
1043 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1044 u16 *num_modes)
1045 {
1046 u16 m;
1047 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1048 int i, mode11g_idx = -1;
1049
1050 /* heuristic to set up modes */
1051 for (m = 0; m < *num_modes; m++) {
1052 if (!modes[m].num_channels)
1053 continue;
1054 if (modes[m].channels[0].freq < 4000) {
1055 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1056 for (i = 0; i < modes[m].num_rates; i++) {
1057 if (modes[m].rates[i] > 200) {
1058 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1059 break;
1060 }
1061 }
1062 } else if (modes[m].channels[0].freq > 50000)
1063 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1064 else
1065 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1066 }
1067
1068 /* If only 802.11g mode is included, use it to construct matching
1069 * 802.11b mode data. */
1070
1071 for (m = 0; m < *num_modes; m++) {
1072 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1073 return modes; /* 802.11b already included */
1074 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1075 mode11g_idx = m;
1076 }
1077
1078 if (mode11g_idx < 0)
1079 return modes; /* 2.4 GHz band not supported at all */
1080
1081 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1082 if (nmodes == NULL)
1083 return modes; /* Could not add 802.11b mode */
1084
1085 mode = &nmodes[*num_modes];
1086 os_memset(mode, 0, sizeof(*mode));
1087 (*num_modes)++;
1088 modes = nmodes;
1089
1090 mode->mode = HOSTAPD_MODE_IEEE80211B;
1091
1092 mode11g = &modes[mode11g_idx];
1093 mode->num_channels = mode11g->num_channels;
1094 mode->channels = os_malloc(mode11g->num_channels *
1095 sizeof(struct hostapd_channel_data));
1096 if (mode->channels == NULL) {
1097 (*num_modes)--;
1098 return modes; /* Could not add 802.11b mode */
1099 }
1100 os_memcpy(mode->channels, mode11g->channels,
1101 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1102
1103 mode->num_rates = 0;
1104 mode->rates = os_malloc(4 * sizeof(int));
1105 if (mode->rates == NULL) {
1106 os_free(mode->channels);
1107 (*num_modes)--;
1108 return modes; /* Could not add 802.11b mode */
1109 }
1110
1111 for (i = 0; i < mode11g->num_rates; i++) {
1112 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1113 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1114 continue;
1115 mode->rates[mode->num_rates] = mode11g->rates[i];
1116 mode->num_rates++;
1117 if (mode->num_rates == 4)
1118 break;
1119 }
1120
1121 if (mode->num_rates == 0) {
1122 os_free(mode->channels);
1123 os_free(mode->rates);
1124 (*num_modes)--;
1125 return modes; /* No 802.11b rates */
1126 }
1127
1128 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1129 "information");
1130
1131 return modes;
1132 }
1133
1134
1135 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1136 int end)
1137 {
1138 int c;
1139
1140 for (c = 0; c < mode->num_channels; c++) {
1141 struct hostapd_channel_data *chan = &mode->channels[c];
1142 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1143 chan->flag |= HOSTAPD_CHAN_HT40;
1144 }
1145 }
1146
1147
1148 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1149 int end)
1150 {
1151 int c;
1152
1153 for (c = 0; c < mode->num_channels; c++) {
1154 struct hostapd_channel_data *chan = &mode->channels[c];
1155 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1156 continue;
1157 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1158 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1159 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1160 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1161 }
1162 }
1163
1164
1165 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1166 struct phy_info_arg *results)
1167 {
1168 u16 m;
1169
1170 for (m = 0; m < *results->num_modes; m++) {
1171 int c;
1172 struct hostapd_hw_modes *mode = &results->modes[m];
1173
1174 for (c = 0; c < mode->num_channels; c++) {
1175 struct hostapd_channel_data *chan = &mode->channels[c];
1176 if ((u32) chan->freq - 10 >= start &&
1177 (u32) chan->freq + 10 <= end)
1178 chan->max_tx_power = max_eirp;
1179 }
1180 }
1181 }
1182
1183
1184 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1185 struct phy_info_arg *results)
1186 {
1187 u16 m;
1188
1189 for (m = 0; m < *results->num_modes; m++) {
1190 if (!(results->modes[m].ht_capab &
1191 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1192 continue;
1193 nl80211_set_ht40_mode(&results->modes[m], start, end);
1194 }
1195 }
1196
1197
1198 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1199 struct phy_info_arg *results)
1200 {
1201 u32 start, end, max_bw;
1202 u16 m;
1203
1204 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1205 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1206 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1207 return;
1208
1209 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1210 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1211 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1212
1213 if (max_bw < 20)
1214 return;
1215
1216 for (m = 0; m < *results->num_modes; m++) {
1217 if (!(results->modes[m].ht_capab &
1218 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1219 continue;
1220 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1221 }
1222 }
1223
1224
1225 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1226 int end)
1227 {
1228 int c;
1229
1230 for (c = 0; c < mode->num_channels; c++) {
1231 struct hostapd_channel_data *chan = &mode->channels[c];
1232 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1233 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1234
1235 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1236 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1237
1238 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1239 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1240
1241 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1242 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1243 }
1244 }
1245
1246
1247 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1248 struct phy_info_arg *results)
1249 {
1250 u32 start, end, max_bw;
1251 u16 m;
1252
1253 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1254 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1255 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1256 return;
1257
1258 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1259 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1260 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1261
1262 if (max_bw < 80)
1263 return;
1264
1265 for (m = 0; m < *results->num_modes; m++) {
1266 if (!(results->modes[m].ht_capab &
1267 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1268 continue;
1269 /* TODO: use a real VHT support indication */
1270 if (!results->modes[m].vht_capab)
1271 continue;
1272
1273 nl80211_set_vht_mode(&results->modes[m], start, end);
1274 }
1275 }
1276
1277
1278 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1279 {
1280 switch (region) {
1281 case NL80211_DFS_UNSET:
1282 return "DFS-UNSET";
1283 case NL80211_DFS_FCC:
1284 return "DFS-FCC";
1285 case NL80211_DFS_ETSI:
1286 return "DFS-ETSI";
1287 case NL80211_DFS_JP:
1288 return "DFS-JP";
1289 default:
1290 return "DFS-invalid";
1291 }
1292 }
1293
1294
1295 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1296 {
1297 struct phy_info_arg *results = arg;
1298 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1299 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1300 struct nlattr *nl_rule;
1301 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1302 int rem_rule;
1303 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1304 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1305 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1306 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1307 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1308 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1309 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1310 };
1311
1312 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1313 genlmsg_attrlen(gnlh, 0), NULL);
1314 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1315 !tb_msg[NL80211_ATTR_REG_RULES]) {
1316 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1317 "available");
1318 return NL_SKIP;
1319 }
1320
1321 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1322 enum nl80211_dfs_regions dfs_domain;
1323 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1324 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1325 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1326 dfs_domain_name(dfs_domain));
1327 } else {
1328 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1329 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1330 }
1331
1332 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1333 {
1334 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1335 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1336 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1337 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1338 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1339 continue;
1340 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1341 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1342 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1343 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1344 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1345 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1346 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1347 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1348
1349 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1350 start, end, max_bw, max_eirp,
1351 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1352 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1353 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1354 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1355 "",
1356 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1357 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1358 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1359 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1360 if (max_bw >= 40)
1361 nl80211_reg_rule_ht40(start, end, results);
1362 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1363 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1364 results);
1365 }
1366
1367 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1368 {
1369 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1370 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1371 nl80211_reg_rule_sec(tb_rule, results);
1372 }
1373
1374 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1375 {
1376 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1377 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1378 nl80211_reg_rule_vht(tb_rule, results);
1379 }
1380
1381 return NL_SKIP;
1382 }
1383
1384
1385 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1386 struct phy_info_arg *results)
1387 {
1388 struct nl_msg *msg;
1389
1390 msg = nlmsg_alloc();
1391 if (!msg)
1392 return -ENOMEM;
1393
1394 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1395 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1396 }
1397
1398
1399 struct hostapd_hw_modes *
1400 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1401 {
1402 u32 feat;
1403 struct i802_bss *bss = priv;
1404 struct wpa_driver_nl80211_data *drv = bss->drv;
1405 int nl_flags = 0;
1406 struct nl_msg *msg;
1407 struct phy_info_arg result = {
1408 .num_modes = num_modes,
1409 .modes = NULL,
1410 .last_mode = -1,
1411 };
1412
1413 *num_modes = 0;
1414 *flags = 0;
1415
1416 feat = get_nl80211_protocol_features(drv);
1417 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
1418 nl_flags = NLM_F_DUMP;
1419 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1420 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
1421 nlmsg_free(msg);
1422 return NULL;
1423 }
1424
1425 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1426 nl80211_set_regulatory_flags(drv, &result);
1427 return wpa_driver_nl80211_postprocess_modes(result.modes,
1428 num_modes);
1429 }
1430
1431 return NULL;
1432 }
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