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QCA vendor command support to set band to driver
[thirdparty/hostap.git] / src / drivers / driver_nl80211_capa.c
1 /*
2 * Driver interaction with Linux nl80211/cfg80211 - Capabilities
3 * Copyright (c) 2002-2015, 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_go_ctwindow_supported:1;
75 unsigned int p2p_concurrent:1;
76 unsigned int channel_switch_supported:1;
77 unsigned int set_qos_map_supported:1;
78 unsigned int have_low_prio_scan:1;
79 unsigned int wmm_ac_supported:1;
80 unsigned int mac_addr_rand_scan_supported:1;
81 unsigned int mac_addr_rand_sched_scan_supported:1;
82 };
83
84
85 static unsigned int probe_resp_offload_support(int supp_protocols)
86 {
87 unsigned int prot = 0;
88
89 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
90 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
91 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
92 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
93 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
94 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
95 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
96 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
97
98 return prot;
99 }
100
101
102 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
103 struct nlattr *tb)
104 {
105 struct nlattr *nl_mode;
106 int i;
107
108 if (tb == NULL)
109 return;
110
111 nla_for_each_nested(nl_mode, tb, i) {
112 switch (nla_type(nl_mode)) {
113 case NL80211_IFTYPE_AP:
114 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
115 break;
116 case NL80211_IFTYPE_MESH_POINT:
117 info->capa->flags |= WPA_DRIVER_FLAGS_MESH;
118 break;
119 case NL80211_IFTYPE_ADHOC:
120 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
121 break;
122 case NL80211_IFTYPE_P2P_DEVICE:
123 info->capa->flags |=
124 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
125 break;
126 case NL80211_IFTYPE_P2P_GO:
127 info->p2p_go_supported = 1;
128 break;
129 case NL80211_IFTYPE_P2P_CLIENT:
130 info->p2p_client_supported = 1;
131 break;
132 case NL80211_IFTYPE_MONITOR:
133 info->monitor_supported = 1;
134 break;
135 }
136 }
137 }
138
139
140 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
141 struct nlattr *nl_combi)
142 {
143 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
144 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
145 struct nlattr *nl_limit, *nl_mode;
146 int err, rem_limit, rem_mode;
147 int combination_has_p2p = 0, combination_has_mgd = 0;
148 static struct nla_policy
149 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
150 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
151 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
152 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
153 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
154 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
155 },
156 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
157 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
158 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
159 };
160
161 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
162 nl_combi, iface_combination_policy);
163 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
164 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
165 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
166 return 0; /* broken combination */
167
168 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
169 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
170
171 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
172 rem_limit) {
173 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
174 nl_limit, iface_limit_policy);
175 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
176 return 0; /* broken combination */
177
178 nla_for_each_nested(nl_mode,
179 tb_limit[NL80211_IFACE_LIMIT_TYPES],
180 rem_mode) {
181 int ift = nla_type(nl_mode);
182 if (ift == NL80211_IFTYPE_P2P_GO ||
183 ift == NL80211_IFTYPE_P2P_CLIENT)
184 combination_has_p2p = 1;
185 if (ift == NL80211_IFTYPE_STATION)
186 combination_has_mgd = 1;
187 }
188 if (combination_has_p2p && combination_has_mgd)
189 break;
190 }
191
192 if (combination_has_p2p && combination_has_mgd) {
193 unsigned int num_channels =
194 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
195
196 info->p2p_concurrent = 1;
197 if (info->num_multichan_concurrent < num_channels)
198 info->num_multichan_concurrent = num_channels;
199 }
200
201 return 0;
202 }
203
204
205 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
206 struct nlattr *tb)
207 {
208 struct nlattr *nl_combi;
209 int rem_combi;
210
211 if (tb == NULL)
212 return;
213
214 nla_for_each_nested(nl_combi, tb, rem_combi) {
215 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
216 break;
217 }
218 }
219
220
221 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
222 struct nlattr *tb)
223 {
224 struct nlattr *nl_cmd;
225 int i;
226
227 if (tb == NULL)
228 return;
229
230 nla_for_each_nested(nl_cmd, tb, i) {
231 switch (nla_get_u32(nl_cmd)) {
232 case NL80211_CMD_AUTHENTICATE:
233 info->auth_supported = 1;
234 break;
235 case NL80211_CMD_CONNECT:
236 info->connect_supported = 1;
237 break;
238 case NL80211_CMD_START_SCHED_SCAN:
239 info->capa->sched_scan_supported = 1;
240 break;
241 case NL80211_CMD_PROBE_CLIENT:
242 info->poll_command_supported = 1;
243 break;
244 case NL80211_CMD_CHANNEL_SWITCH:
245 info->channel_switch_supported = 1;
246 break;
247 case NL80211_CMD_SET_QOS_MAP:
248 info->set_qos_map_supported = 1;
249 break;
250 }
251 }
252 }
253
254
255 static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
256 struct nlattr *tb)
257 {
258 int i, num;
259 u32 *ciphers;
260
261 if (tb == NULL)
262 return;
263
264 num = nla_len(tb) / sizeof(u32);
265 ciphers = nla_data(tb);
266 for (i = 0; i < num; i++) {
267 u32 c = ciphers[i];
268
269 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
270 c >> 24, (c >> 16) & 0xff,
271 (c >> 8) & 0xff, c & 0xff);
272 switch (c) {
273 case WLAN_CIPHER_SUITE_CCMP_256:
274 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
275 break;
276 case WLAN_CIPHER_SUITE_GCMP_256:
277 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
278 break;
279 case WLAN_CIPHER_SUITE_CCMP:
280 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
281 break;
282 case WLAN_CIPHER_SUITE_GCMP:
283 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
284 break;
285 case WLAN_CIPHER_SUITE_TKIP:
286 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
287 break;
288 case WLAN_CIPHER_SUITE_WEP104:
289 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
290 break;
291 case WLAN_CIPHER_SUITE_WEP40:
292 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
293 break;
294 case WLAN_CIPHER_SUITE_AES_CMAC:
295 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
296 break;
297 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
298 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
299 break;
300 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
301 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
302 break;
303 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
304 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
305 break;
306 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR:
307 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
308 break;
309 }
310 }
311 }
312
313
314 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
315 struct nlattr *tb)
316 {
317 if (tb)
318 capa->max_remain_on_chan = nla_get_u32(tb);
319 }
320
321
322 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
323 struct nlattr *ext_setup)
324 {
325 if (tdls == NULL)
326 return;
327
328 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
329 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
330
331 if (ext_setup) {
332 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
333 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
334 }
335 }
336
337
338 static int ext_feature_isset(const u8 *ext_features, int ext_features_len,
339 enum nl80211_ext_feature_index ftidx)
340 {
341 u8 ft_byte;
342
343 if ((int) ftidx / 8 >= ext_features_len)
344 return 0;
345
346 ft_byte = ext_features[ftidx / 8];
347 return (ft_byte & BIT(ftidx % 8)) != 0;
348 }
349
350
351 static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info,
352 struct nlattr *tb)
353 {
354 struct wpa_driver_capa *capa = info->capa;
355
356 if (tb == NULL)
357 return;
358
359 if (ext_feature_isset(nla_data(tb), nla_len(tb),
360 NL80211_EXT_FEATURE_VHT_IBSS))
361 capa->flags |= WPA_DRIVER_FLAGS_VHT_IBSS;
362 }
363
364
365 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
366 struct nlattr *tb)
367 {
368 u32 flags;
369 struct wpa_driver_capa *capa = info->capa;
370
371 if (tb == NULL)
372 return;
373
374 flags = nla_get_u32(tb);
375
376 if (flags & NL80211_FEATURE_SK_TX_STATUS)
377 info->data_tx_status = 1;
378
379 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
380 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
381
382 if (flags & NL80211_FEATURE_SAE)
383 capa->flags |= WPA_DRIVER_FLAGS_SAE;
384
385 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
386 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
387
388 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
389 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
390
391 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) {
392 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch");
393 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH;
394 }
395
396 if (flags & NL80211_FEATURE_P2P_GO_CTWIN)
397 info->p2p_go_ctwindow_supported = 1;
398
399 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
400 info->have_low_prio_scan = 1;
401
402 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)
403 info->mac_addr_rand_scan_supported = 1;
404
405 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR)
406 info->mac_addr_rand_sched_scan_supported = 1;
407
408 if (flags & NL80211_FEATURE_STATIC_SMPS)
409 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
410
411 if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
412 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
413
414 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
415 info->wmm_ac_supported = 1;
416
417 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES)
418 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES;
419
420 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES)
421 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES;
422
423 if (flags & NL80211_FEATURE_QUIET)
424 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET;
425
426 if (flags & NL80211_FEATURE_TX_POWER_INSERTION)
427 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION;
428
429 if (flags & NL80211_FEATURE_HT_IBSS)
430 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS;
431 }
432
433
434 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
435 struct nlattr *tb)
436 {
437 u32 protocols;
438
439 if (tb == NULL)
440 return;
441
442 protocols = nla_get_u32(tb);
443 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
444 "mode");
445 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
446 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
447 }
448
449
450 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
451 struct nlattr *tb)
452 {
453 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
454
455 if (tb == NULL)
456 return;
457
458 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
459 tb, NULL))
460 return;
461
462 if (triggers[NL80211_WOWLAN_TRIG_ANY])
463 capa->wowlan_triggers.any = 1;
464 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
465 capa->wowlan_triggers.disconnect = 1;
466 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
467 capa->wowlan_triggers.magic_pkt = 1;
468 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
469 capa->wowlan_triggers.gtk_rekey_failure = 1;
470 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
471 capa->wowlan_triggers.eap_identity_req = 1;
472 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
473 capa->wowlan_triggers.four_way_handshake = 1;
474 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
475 capa->wowlan_triggers.rfkill_release = 1;
476 }
477
478
479 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
480 {
481 struct nlattr *tb[NL80211_ATTR_MAX + 1];
482 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
483 struct wiphy_info_data *info = arg;
484 struct wpa_driver_capa *capa = info->capa;
485 struct wpa_driver_nl80211_data *drv = info->drv;
486
487 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
488 genlmsg_attrlen(gnlh, 0), NULL);
489
490 if (tb[NL80211_ATTR_WIPHY_NAME])
491 os_strlcpy(drv->phyname,
492 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
493 sizeof(drv->phyname));
494 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
495 capa->max_scan_ssids =
496 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
497
498 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
499 capa->max_sched_scan_ssids =
500 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
501
502 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
503 capa->max_match_sets =
504 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
505
506 if (tb[NL80211_ATTR_MAC_ACL_MAX])
507 capa->max_acl_mac_addrs =
508 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
509
510 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
511 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
512 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
513 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
514
515 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
516 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
517 "off-channel TX");
518 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
519 }
520
521 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
522 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
523 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
524 }
525
526 wiphy_info_max_roc(capa,
527 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
528
529 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
530 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
531
532 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
533 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
534
535 if (tb[NL80211_ATTR_DEVICE_AP_SME])
536 info->device_ap_sme = 1;
537
538 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
539 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]);
540 wiphy_info_probe_resp_offload(capa,
541 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
542
543 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
544 drv->extended_capa == NULL) {
545 drv->extended_capa =
546 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
547 if (drv->extended_capa) {
548 os_memcpy(drv->extended_capa,
549 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
550 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
551 drv->extended_capa_len =
552 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
553 }
554 drv->extended_capa_mask =
555 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
556 if (drv->extended_capa_mask) {
557 os_memcpy(drv->extended_capa_mask,
558 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]),
559 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
560 } else {
561 os_free(drv->extended_capa);
562 drv->extended_capa = NULL;
563 drv->extended_capa_len = 0;
564 }
565 }
566
567 if (tb[NL80211_ATTR_VENDOR_DATA]) {
568 struct nlattr *nl;
569 int rem;
570
571 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
572 struct nl80211_vendor_cmd_info *vinfo;
573 if (nla_len(nl) != sizeof(*vinfo)) {
574 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
575 continue;
576 }
577 vinfo = nla_data(nl);
578 if (vinfo->vendor_id == OUI_QCA) {
579 switch (vinfo->subcmd) {
580 case QCA_NL80211_VENDOR_SUBCMD_TEST:
581 drv->vendor_cmd_test_avail = 1;
582 break;
583 case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
584 drv->roaming_vendor_cmd_avail = 1;
585 break;
586 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
587 drv->dfs_vendor_cmd_avail = 1;
588 break;
589 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
590 drv->get_features_vendor_cmd_avail = 1;
591 break;
592 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
593 drv->capa.flags |=
594 WPA_DRIVER_FLAGS_ACS_OFFLOAD;
595 break;
596 case QCA_NL80211_VENDOR_SUBCMD_SETBAND:
597 drv->setband_vendor_cmd_avail = 1;
598 break;
599 }
600 }
601
602 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
603 vinfo->vendor_id, vinfo->subcmd);
604 }
605 }
606
607 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
608 struct nlattr *nl;
609 int rem;
610
611 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
612 struct nl80211_vendor_cmd_info *vinfo;
613 if (nla_len(nl) != sizeof(*vinfo)) {
614 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
615 continue;
616 }
617 vinfo = nla_data(nl);
618 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
619 vinfo->vendor_id, vinfo->subcmd);
620 }
621 }
622
623 wiphy_info_wowlan_triggers(capa,
624 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
625
626 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
627 capa->max_stations =
628 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
629
630 return NL_SKIP;
631 }
632
633
634 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
635 struct wiphy_info_data *info)
636 {
637 u32 feat;
638 struct nl_msg *msg;
639 int flags = 0;
640
641 os_memset(info, 0, sizeof(*info));
642 info->capa = &drv->capa;
643 info->drv = drv;
644
645 feat = get_nl80211_protocol_features(drv);
646 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
647 flags = NLM_F_DUMP;
648 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
649 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
650 nlmsg_free(msg);
651 return -1;
652 }
653
654 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
655 return -1;
656
657 if (info->auth_supported)
658 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
659 else if (!info->connect_supported) {
660 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
661 "authentication/association or connect commands");
662 info->error = 1;
663 }
664
665 if (info->p2p_go_supported && info->p2p_client_supported)
666 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
667 if (info->p2p_concurrent) {
668 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
669 "interface (driver advertised support)");
670 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
671 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
672 }
673 if (info->num_multichan_concurrent > 1) {
674 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
675 "concurrent (driver advertised support)");
676 drv->capa.num_multichan_concurrent =
677 info->num_multichan_concurrent;
678 }
679 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
680 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
681
682 /* default to 5000 since early versions of mac80211 don't set it */
683 if (!drv->capa.max_remain_on_chan)
684 drv->capa.max_remain_on_chan = 5000;
685
686 if (info->channel_switch_supported)
687 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
688 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
689
690 drv->capa.mac_addr_rand_sched_scan_supported =
691 info->mac_addr_rand_sched_scan_supported;
692 drv->capa.mac_addr_rand_scan_supported =
693 info->mac_addr_rand_scan_supported;
694
695 return 0;
696 }
697
698
699 static int dfs_info_handler(struct nl_msg *msg, void *arg)
700 {
701 struct nlattr *tb[NL80211_ATTR_MAX + 1];
702 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
703 int *dfs_capability_ptr = arg;
704
705 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
706 genlmsg_attrlen(gnlh, 0), NULL);
707
708 if (tb[NL80211_ATTR_VENDOR_DATA]) {
709 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
710 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
711
712 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
713 nla_data(nl_vend), nla_len(nl_vend), NULL);
714
715 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
716 u32 val;
717 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
718 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
719 val);
720 *dfs_capability_ptr = val;
721 }
722 }
723
724 return NL_SKIP;
725 }
726
727
728 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
729 {
730 struct nl_msg *msg;
731 int dfs_capability = 0;
732 int ret;
733
734 if (!drv->dfs_vendor_cmd_avail)
735 return;
736
737 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
738 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
739 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
740 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
741 nlmsg_free(msg);
742 return;
743 }
744
745 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
746 if (!ret && dfs_capability)
747 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
748 }
749
750
751 struct features_info {
752 u8 *flags;
753 size_t flags_len;
754 };
755
756
757 static int features_info_handler(struct nl_msg *msg, void *arg)
758 {
759 struct nlattr *tb[NL80211_ATTR_MAX + 1];
760 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
761 struct features_info *info = arg;
762 struct nlattr *nl_vend, *attr;
763
764 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
765 genlmsg_attrlen(gnlh, 0), NULL);
766
767 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
768 if (nl_vend) {
769 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
770
771 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
772 nla_data(nl_vend), nla_len(nl_vend), NULL);
773
774 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS];
775 if (attr) {
776 info->flags = nla_data(attr);
777 info->flags_len = nla_len(attr);
778 }
779 }
780
781 return NL_SKIP;
782 }
783
784
785 static int check_feature(enum qca_wlan_vendor_features feature,
786 struct features_info *info)
787 {
788 size_t idx = feature / 8;
789
790 return (idx < info->flags_len) &&
791 (info->flags[idx] & BIT(feature % 8));
792 }
793
794
795 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
796 {
797 struct nl_msg *msg;
798 struct features_info info;
799 int ret;
800
801 if (!drv->get_features_vendor_cmd_avail)
802 return;
803
804 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
805 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
806 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
807 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
808 nlmsg_free(msg);
809 return;
810 }
811
812 os_memset(&info, 0, sizeof(info));
813 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
814 if (ret || !info.flags)
815 return;
816
817 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
818 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
819
820 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
821 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
822 }
823
824
825 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
826 {
827 struct wiphy_info_data info;
828 if (wpa_driver_nl80211_get_info(drv, &info))
829 return -1;
830
831 if (info.error)
832 return -1;
833
834 drv->has_capability = 1;
835 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
836 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
837 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
838 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK |
839 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B |
840 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192;
841 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
842 WPA_DRIVER_AUTH_SHARED |
843 WPA_DRIVER_AUTH_LEAP;
844
845 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
846 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
847 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
848
849 /*
850 * As all cfg80211 drivers must support cases where the AP interface is
851 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
852 * case that the user space daemon has crashed, they must be able to
853 * cleanup all stations and key entries in the AP tear down flow. Thus,
854 * this flag can/should always be set for cfg80211 drivers.
855 */
856 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
857
858 if (!info.device_ap_sme) {
859 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
860
861 /*
862 * No AP SME is currently assumed to also indicate no AP MLME
863 * in the driver/firmware.
864 */
865 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
866 }
867
868 drv->device_ap_sme = info.device_ap_sme;
869 drv->poll_command_supported = info.poll_command_supported;
870 drv->data_tx_status = info.data_tx_status;
871 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported;
872 if (info.set_qos_map_supported)
873 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
874 drv->have_low_prio_scan = info.have_low_prio_scan;
875
876 /*
877 * If poll command and tx status are supported, mac80211 is new enough
878 * to have everything we need to not need monitor interfaces.
879 */
880 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
881
882 if (drv->device_ap_sme && drv->use_monitor) {
883 /*
884 * Non-mac80211 drivers may not support monitor interface.
885 * Make sure we do not get stuck with incorrect capability here
886 * by explicitly testing this.
887 */
888 if (!info.monitor_supported) {
889 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
890 "with device_ap_sme since no monitor mode "
891 "support detected");
892 drv->use_monitor = 0;
893 }
894 }
895
896 /*
897 * If we aren't going to use monitor interfaces, but the
898 * driver doesn't support data TX status, we won't get TX
899 * status for EAPOL frames.
900 */
901 if (!drv->use_monitor && !info.data_tx_status)
902 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
903
904 qca_nl80211_check_dfs_capa(drv);
905 qca_nl80211_get_features(drv);
906
907 return 0;
908 }
909
910
911 struct phy_info_arg {
912 u16 *num_modes;
913 struct hostapd_hw_modes *modes;
914 int last_mode, last_chan_idx;
915 };
916
917 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
918 struct nlattr *ampdu_factor,
919 struct nlattr *ampdu_density,
920 struct nlattr *mcs_set)
921 {
922 if (capa)
923 mode->ht_capab = nla_get_u16(capa);
924
925 if (ampdu_factor)
926 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
927
928 if (ampdu_density)
929 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
930
931 if (mcs_set && nla_len(mcs_set) >= 16) {
932 u8 *mcs;
933 mcs = nla_data(mcs_set);
934 os_memcpy(mode->mcs_set, mcs, 16);
935 }
936 }
937
938
939 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
940 struct nlattr *capa,
941 struct nlattr *mcs_set)
942 {
943 if (capa)
944 mode->vht_capab = nla_get_u32(capa);
945
946 if (mcs_set && nla_len(mcs_set) >= 8) {
947 u8 *mcs;
948 mcs = nla_data(mcs_set);
949 os_memcpy(mode->vht_mcs_set, mcs, 8);
950 }
951 }
952
953
954 static void phy_info_freq(struct hostapd_hw_modes *mode,
955 struct hostapd_channel_data *chan,
956 struct nlattr *tb_freq[])
957 {
958 u8 channel;
959 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
960 chan->flag = 0;
961 chan->dfs_cac_ms = 0;
962 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
963 chan->chan = channel;
964
965 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
966 chan->flag |= HOSTAPD_CHAN_DISABLED;
967 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
968 chan->flag |= HOSTAPD_CHAN_NO_IR;
969 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
970 chan->flag |= HOSTAPD_CHAN_RADAR;
971 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
972 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
973 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
974 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
975
976 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
977 enum nl80211_dfs_state state =
978 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
979
980 switch (state) {
981 case NL80211_DFS_USABLE:
982 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
983 break;
984 case NL80211_DFS_AVAILABLE:
985 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
986 break;
987 case NL80211_DFS_UNAVAILABLE:
988 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
989 break;
990 }
991 }
992
993 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
994 chan->dfs_cac_ms = nla_get_u32(
995 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
996 }
997 }
998
999
1000 static int phy_info_freqs(struct phy_info_arg *phy_info,
1001 struct hostapd_hw_modes *mode, struct nlattr *tb)
1002 {
1003 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1004 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1005 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1006 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
1007 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1008 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1009 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
1010 };
1011 int new_channels = 0;
1012 struct hostapd_channel_data *channel;
1013 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1014 struct nlattr *nl_freq;
1015 int rem_freq, idx;
1016
1017 if (tb == NULL)
1018 return NL_OK;
1019
1020 nla_for_each_nested(nl_freq, tb, rem_freq) {
1021 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1022 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1023 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1024 continue;
1025 new_channels++;
1026 }
1027
1028 channel = os_realloc_array(mode->channels,
1029 mode->num_channels + new_channels,
1030 sizeof(struct hostapd_channel_data));
1031 if (!channel)
1032 return NL_SKIP;
1033
1034 mode->channels = channel;
1035 mode->num_channels += new_channels;
1036
1037 idx = phy_info->last_chan_idx;
1038
1039 nla_for_each_nested(nl_freq, tb, rem_freq) {
1040 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1041 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1042 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1043 continue;
1044 phy_info_freq(mode, &mode->channels[idx], tb_freq);
1045 idx++;
1046 }
1047 phy_info->last_chan_idx = idx;
1048
1049 return NL_OK;
1050 }
1051
1052
1053 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1054 {
1055 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1056 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1057 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1058 { .type = NLA_FLAG },
1059 };
1060 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1061 struct nlattr *nl_rate;
1062 int rem_rate, idx;
1063
1064 if (tb == NULL)
1065 return NL_OK;
1066
1067 nla_for_each_nested(nl_rate, tb, rem_rate) {
1068 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1069 nla_data(nl_rate), nla_len(nl_rate),
1070 rate_policy);
1071 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1072 continue;
1073 mode->num_rates++;
1074 }
1075
1076 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1077 if (!mode->rates)
1078 return NL_SKIP;
1079
1080 idx = 0;
1081
1082 nla_for_each_nested(nl_rate, tb, rem_rate) {
1083 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1084 nla_data(nl_rate), nla_len(nl_rate),
1085 rate_policy);
1086 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1087 continue;
1088 mode->rates[idx] = nla_get_u32(
1089 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1090 idx++;
1091 }
1092
1093 return NL_OK;
1094 }
1095
1096
1097 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1098 {
1099 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1100 struct hostapd_hw_modes *mode;
1101 int ret;
1102
1103 if (phy_info->last_mode != nl_band->nla_type) {
1104 mode = os_realloc_array(phy_info->modes,
1105 *phy_info->num_modes + 1,
1106 sizeof(*mode));
1107 if (!mode)
1108 return NL_SKIP;
1109 phy_info->modes = mode;
1110
1111 mode = &phy_info->modes[*(phy_info->num_modes)];
1112 os_memset(mode, 0, sizeof(*mode));
1113 mode->mode = NUM_HOSTAPD_MODES;
1114 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1115 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1116
1117 /*
1118 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1119 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1120 * possible streams as unsupported. This will be overridden if
1121 * driver advertises VHT support.
1122 */
1123 mode->vht_mcs_set[0] = 0xff;
1124 mode->vht_mcs_set[1] = 0xff;
1125 mode->vht_mcs_set[4] = 0xff;
1126 mode->vht_mcs_set[5] = 0xff;
1127
1128 *(phy_info->num_modes) += 1;
1129 phy_info->last_mode = nl_band->nla_type;
1130 phy_info->last_chan_idx = 0;
1131 } else
1132 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1133
1134 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1135 nla_len(nl_band), NULL);
1136
1137 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1138 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1139 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1140 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1141 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1142 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1143 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1144 if (ret != NL_OK)
1145 return ret;
1146 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1147 if (ret != NL_OK)
1148 return ret;
1149
1150 return NL_OK;
1151 }
1152
1153
1154 static int phy_info_handler(struct nl_msg *msg, void *arg)
1155 {
1156 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1157 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1158 struct phy_info_arg *phy_info = arg;
1159 struct nlattr *nl_band;
1160 int rem_band;
1161
1162 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1163 genlmsg_attrlen(gnlh, 0), NULL);
1164
1165 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1166 return NL_SKIP;
1167
1168 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1169 {
1170 int res = phy_info_band(phy_info, nl_band);
1171 if (res != NL_OK)
1172 return res;
1173 }
1174
1175 return NL_SKIP;
1176 }
1177
1178
1179 static struct hostapd_hw_modes *
1180 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1181 u16 *num_modes)
1182 {
1183 u16 m;
1184 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1185 int i, mode11g_idx = -1;
1186
1187 /* heuristic to set up modes */
1188 for (m = 0; m < *num_modes; m++) {
1189 if (!modes[m].num_channels)
1190 continue;
1191 if (modes[m].channels[0].freq < 4000) {
1192 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1193 for (i = 0; i < modes[m].num_rates; i++) {
1194 if (modes[m].rates[i] > 200) {
1195 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1196 break;
1197 }
1198 }
1199 } else if (modes[m].channels[0].freq > 50000)
1200 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1201 else
1202 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1203 }
1204
1205 /* If only 802.11g mode is included, use it to construct matching
1206 * 802.11b mode data. */
1207
1208 for (m = 0; m < *num_modes; m++) {
1209 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1210 return modes; /* 802.11b already included */
1211 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1212 mode11g_idx = m;
1213 }
1214
1215 if (mode11g_idx < 0)
1216 return modes; /* 2.4 GHz band not supported at all */
1217
1218 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1219 if (nmodes == NULL)
1220 return modes; /* Could not add 802.11b mode */
1221
1222 mode = &nmodes[*num_modes];
1223 os_memset(mode, 0, sizeof(*mode));
1224 (*num_modes)++;
1225 modes = nmodes;
1226
1227 mode->mode = HOSTAPD_MODE_IEEE80211B;
1228
1229 mode11g = &modes[mode11g_idx];
1230 mode->num_channels = mode11g->num_channels;
1231 mode->channels = os_malloc(mode11g->num_channels *
1232 sizeof(struct hostapd_channel_data));
1233 if (mode->channels == NULL) {
1234 (*num_modes)--;
1235 return modes; /* Could not add 802.11b mode */
1236 }
1237 os_memcpy(mode->channels, mode11g->channels,
1238 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1239
1240 mode->num_rates = 0;
1241 mode->rates = os_malloc(4 * sizeof(int));
1242 if (mode->rates == NULL) {
1243 os_free(mode->channels);
1244 (*num_modes)--;
1245 return modes; /* Could not add 802.11b mode */
1246 }
1247
1248 for (i = 0; i < mode11g->num_rates; i++) {
1249 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1250 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1251 continue;
1252 mode->rates[mode->num_rates] = mode11g->rates[i];
1253 mode->num_rates++;
1254 if (mode->num_rates == 4)
1255 break;
1256 }
1257
1258 if (mode->num_rates == 0) {
1259 os_free(mode->channels);
1260 os_free(mode->rates);
1261 (*num_modes)--;
1262 return modes; /* No 802.11b rates */
1263 }
1264
1265 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1266 "information");
1267
1268 return modes;
1269 }
1270
1271
1272 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1273 int end)
1274 {
1275 int c;
1276
1277 for (c = 0; c < mode->num_channels; c++) {
1278 struct hostapd_channel_data *chan = &mode->channels[c];
1279 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1280 chan->flag |= HOSTAPD_CHAN_HT40;
1281 }
1282 }
1283
1284
1285 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1286 int end)
1287 {
1288 int c;
1289
1290 for (c = 0; c < mode->num_channels; c++) {
1291 struct hostapd_channel_data *chan = &mode->channels[c];
1292 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1293 continue;
1294 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1295 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1296 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1297 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1298 }
1299 }
1300
1301
1302 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1303 struct phy_info_arg *results)
1304 {
1305 u16 m;
1306
1307 for (m = 0; m < *results->num_modes; m++) {
1308 int c;
1309 struct hostapd_hw_modes *mode = &results->modes[m];
1310
1311 for (c = 0; c < mode->num_channels; c++) {
1312 struct hostapd_channel_data *chan = &mode->channels[c];
1313 if ((u32) chan->freq - 10 >= start &&
1314 (u32) chan->freq + 10 <= end)
1315 chan->max_tx_power = max_eirp;
1316 }
1317 }
1318 }
1319
1320
1321 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1322 struct phy_info_arg *results)
1323 {
1324 u16 m;
1325
1326 for (m = 0; m < *results->num_modes; m++) {
1327 if (!(results->modes[m].ht_capab &
1328 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1329 continue;
1330 nl80211_set_ht40_mode(&results->modes[m], start, end);
1331 }
1332 }
1333
1334
1335 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1336 struct phy_info_arg *results)
1337 {
1338 u32 start, end, max_bw;
1339 u16 m;
1340
1341 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1342 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1343 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1344 return;
1345
1346 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1347 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1348 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1349
1350 if (max_bw < 20)
1351 return;
1352
1353 for (m = 0; m < *results->num_modes; m++) {
1354 if (!(results->modes[m].ht_capab &
1355 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1356 continue;
1357 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1358 }
1359 }
1360
1361
1362 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1363 int end)
1364 {
1365 int c;
1366
1367 for (c = 0; c < mode->num_channels; c++) {
1368 struct hostapd_channel_data *chan = &mode->channels[c];
1369 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1370 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1371
1372 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1373 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1374
1375 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1376 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1377
1378 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1379 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1380 }
1381 }
1382
1383
1384 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1385 struct phy_info_arg *results)
1386 {
1387 u32 start, end, max_bw;
1388 u16 m;
1389
1390 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1391 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1392 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1393 return;
1394
1395 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1396 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1397 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1398
1399 if (max_bw < 80)
1400 return;
1401
1402 for (m = 0; m < *results->num_modes; m++) {
1403 if (!(results->modes[m].ht_capab &
1404 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1405 continue;
1406 /* TODO: use a real VHT support indication */
1407 if (!results->modes[m].vht_capab)
1408 continue;
1409
1410 nl80211_set_vht_mode(&results->modes[m], start, end);
1411 }
1412 }
1413
1414
1415 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1416 {
1417 switch (region) {
1418 case NL80211_DFS_UNSET:
1419 return "DFS-UNSET";
1420 case NL80211_DFS_FCC:
1421 return "DFS-FCC";
1422 case NL80211_DFS_ETSI:
1423 return "DFS-ETSI";
1424 case NL80211_DFS_JP:
1425 return "DFS-JP";
1426 default:
1427 return "DFS-invalid";
1428 }
1429 }
1430
1431
1432 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1433 {
1434 struct phy_info_arg *results = arg;
1435 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1436 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1437 struct nlattr *nl_rule;
1438 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1439 int rem_rule;
1440 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1441 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1442 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1443 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1444 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1445 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1446 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1447 };
1448
1449 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1450 genlmsg_attrlen(gnlh, 0), NULL);
1451 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1452 !tb_msg[NL80211_ATTR_REG_RULES]) {
1453 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1454 "available");
1455 return NL_SKIP;
1456 }
1457
1458 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1459 enum nl80211_dfs_regions dfs_domain;
1460 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1461 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1462 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1463 dfs_domain_name(dfs_domain));
1464 } else {
1465 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1466 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1467 }
1468
1469 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1470 {
1471 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1472 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1473 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1474 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1475 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1476 continue;
1477 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1478 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1479 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1480 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1481 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1482 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1483 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1484 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1485
1486 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1487 start, end, max_bw, max_eirp,
1488 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1489 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1490 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1491 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1492 "",
1493 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1494 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1495 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1496 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1497 if (max_bw >= 40)
1498 nl80211_reg_rule_ht40(start, end, results);
1499 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1500 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1501 results);
1502 }
1503
1504 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1505 {
1506 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1507 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1508 nl80211_reg_rule_sec(tb_rule, results);
1509 }
1510
1511 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1512 {
1513 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1514 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1515 nl80211_reg_rule_vht(tb_rule, results);
1516 }
1517
1518 return NL_SKIP;
1519 }
1520
1521
1522 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1523 struct phy_info_arg *results)
1524 {
1525 struct nl_msg *msg;
1526
1527 msg = nlmsg_alloc();
1528 if (!msg)
1529 return -ENOMEM;
1530
1531 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1532 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1533 }
1534
1535
1536 struct hostapd_hw_modes *
1537 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1538 {
1539 u32 feat;
1540 struct i802_bss *bss = priv;
1541 struct wpa_driver_nl80211_data *drv = bss->drv;
1542 int nl_flags = 0;
1543 struct nl_msg *msg;
1544 struct phy_info_arg result = {
1545 .num_modes = num_modes,
1546 .modes = NULL,
1547 .last_mode = -1,
1548 };
1549
1550 *num_modes = 0;
1551 *flags = 0;
1552
1553 feat = get_nl80211_protocol_features(drv);
1554 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
1555 nl_flags = NLM_F_DUMP;
1556 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1557 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
1558 nlmsg_free(msg);
1559 return NULL;
1560 }
1561
1562 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1563 nl80211_set_regulatory_flags(drv, &result);
1564 return wpa_driver_nl80211_postprocess_modes(result.modes,
1565 num_modes);
1566 }
1567
1568 return NULL;
1569 }
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