]> git.ipfire.org Git - thirdparty/hostap.git/blob - src/drivers/driver_nl80211_capa.c
projects / thirdparty / hostap.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
nl80211: Extract driver offchannel simultaneous capability
[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_GET_PREFERRED_FREQ_LIST:
593 drv->get_pref_freq_list = 1;
594 break;
595 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL:
596 drv->set_prob_oper_freq = 1;
597 break;
598 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
599 drv->capa.flags |=
600 WPA_DRIVER_FLAGS_ACS_OFFLOAD;
601 break;
602 case QCA_NL80211_VENDOR_SUBCMD_SETBAND:
603 drv->setband_vendor_cmd_avail = 1;
604 break;
605 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN:
606 drv->scan_vendor_cmd_avail = 1;
607 break;
608 }
609 }
610
611 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
612 vinfo->vendor_id, vinfo->subcmd);
613 }
614 }
615
616 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
617 struct nlattr *nl;
618 int rem;
619
620 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
621 struct nl80211_vendor_cmd_info *vinfo;
622 if (nla_len(nl) != sizeof(*vinfo)) {
623 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
624 continue;
625 }
626 vinfo = nla_data(nl);
627 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
628 vinfo->vendor_id, vinfo->subcmd);
629 }
630 }
631
632 wiphy_info_wowlan_triggers(capa,
633 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
634
635 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
636 capa->max_stations =
637 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
638
639 return NL_SKIP;
640 }
641
642
643 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
644 struct wiphy_info_data *info)
645 {
646 u32 feat;
647 struct nl_msg *msg;
648 int flags = 0;
649
650 os_memset(info, 0, sizeof(*info));
651 info->capa = &drv->capa;
652 info->drv = drv;
653
654 feat = get_nl80211_protocol_features(drv);
655 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
656 flags = NLM_F_DUMP;
657 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
658 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
659 nlmsg_free(msg);
660 return -1;
661 }
662
663 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
664 return -1;
665
666 if (info->auth_supported)
667 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
668 else if (!info->connect_supported) {
669 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
670 "authentication/association or connect commands");
671 info->error = 1;
672 }
673
674 if (info->p2p_go_supported && info->p2p_client_supported)
675 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
676 if (info->p2p_concurrent) {
677 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
678 "interface (driver advertised support)");
679 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
680 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
681 }
682 if (info->num_multichan_concurrent > 1) {
683 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
684 "concurrent (driver advertised support)");
685 drv->capa.num_multichan_concurrent =
686 info->num_multichan_concurrent;
687 }
688 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
689 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
690
691 /* default to 5000 since early versions of mac80211 don't set it */
692 if (!drv->capa.max_remain_on_chan)
693 drv->capa.max_remain_on_chan = 5000;
694
695 if (info->channel_switch_supported)
696 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
697 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
698
699 drv->capa.mac_addr_rand_sched_scan_supported =
700 info->mac_addr_rand_sched_scan_supported;
701 drv->capa.mac_addr_rand_scan_supported =
702 info->mac_addr_rand_scan_supported;
703
704 return 0;
705 }
706
707
708 static int dfs_info_handler(struct nl_msg *msg, void *arg)
709 {
710 struct nlattr *tb[NL80211_ATTR_MAX + 1];
711 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
712 int *dfs_capability_ptr = arg;
713
714 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
715 genlmsg_attrlen(gnlh, 0), NULL);
716
717 if (tb[NL80211_ATTR_VENDOR_DATA]) {
718 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
719 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
720
721 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
722 nla_data(nl_vend), nla_len(nl_vend), NULL);
723
724 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
725 u32 val;
726 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
727 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
728 val);
729 *dfs_capability_ptr = val;
730 }
731 }
732
733 return NL_SKIP;
734 }
735
736
737 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
738 {
739 struct nl_msg *msg;
740 int dfs_capability = 0;
741 int ret;
742
743 if (!drv->dfs_vendor_cmd_avail)
744 return;
745
746 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
747 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
748 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
749 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
750 nlmsg_free(msg);
751 return;
752 }
753
754 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
755 if (!ret && dfs_capability)
756 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
757 }
758
759
760 struct features_info {
761 u8 *flags;
762 size_t flags_len;
763 struct wpa_driver_capa *capa;
764 };
765
766
767 static int features_info_handler(struct nl_msg *msg, void *arg)
768 {
769 struct nlattr *tb[NL80211_ATTR_MAX + 1];
770 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
771 struct features_info *info = arg;
772 struct nlattr *nl_vend, *attr;
773
774 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
775 genlmsg_attrlen(gnlh, 0), NULL);
776
777 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
778 if (nl_vend) {
779 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
780
781 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
782 nla_data(nl_vend), nla_len(nl_vend), NULL);
783
784 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS];
785 if (attr) {
786 info->flags = nla_data(attr);
787 info->flags_len = nla_len(attr);
788 }
789 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA];
790 if (attr)
791 info->capa->conc_capab = nla_get_u32(attr);
792
793 attr = tb_vendor[
794 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND];
795 if (attr)
796 info->capa->max_conc_chan_2_4 = nla_get_u32(attr);
797
798 attr = tb_vendor[
799 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND];
800 if (attr)
801 info->capa->max_conc_chan_5_0 = nla_get_u32(attr);
802 }
803
804 return NL_SKIP;
805 }
806
807
808 static int check_feature(enum qca_wlan_vendor_features feature,
809 struct features_info *info)
810 {
811 size_t idx = feature / 8;
812
813 return (idx < info->flags_len) &&
814 (info->flags[idx] & BIT(feature % 8));
815 }
816
817
818 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
819 {
820 struct nl_msg *msg;
821 struct features_info info;
822 int ret;
823
824 if (!drv->get_features_vendor_cmd_avail)
825 return;
826
827 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
828 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
829 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
830 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
831 nlmsg_free(msg);
832 return;
833 }
834
835 os_memset(&info, 0, sizeof(info));
836 info.capa = &drv->capa;
837 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
838 if (ret || !info.flags)
839 return;
840
841 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
842 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
843
844 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
845 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
846
847 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS,
848 &info))
849 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
850 }
851
852
853 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
854 {
855 struct wiphy_info_data info;
856 if (wpa_driver_nl80211_get_info(drv, &info))
857 return -1;
858
859 if (info.error)
860 return -1;
861
862 drv->has_capability = 1;
863 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
864 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
865 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
866 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK |
867 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B |
868 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192;
869 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
870 WPA_DRIVER_AUTH_SHARED |
871 WPA_DRIVER_AUTH_LEAP;
872
873 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
874 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
875 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
876
877 /*
878 * As all cfg80211 drivers must support cases where the AP interface is
879 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
880 * case that the user space daemon has crashed, they must be able to
881 * cleanup all stations and key entries in the AP tear down flow. Thus,
882 * this flag can/should always be set for cfg80211 drivers.
883 */
884 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
885
886 if (!info.device_ap_sme) {
887 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
888
889 /*
890 * No AP SME is currently assumed to also indicate no AP MLME
891 * in the driver/firmware.
892 */
893 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
894 }
895
896 drv->device_ap_sme = info.device_ap_sme;
897 drv->poll_command_supported = info.poll_command_supported;
898 drv->data_tx_status = info.data_tx_status;
899 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported;
900 if (info.set_qos_map_supported)
901 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
902 drv->have_low_prio_scan = info.have_low_prio_scan;
903
904 /*
905 * If poll command and tx status are supported, mac80211 is new enough
906 * to have everything we need to not need monitor interfaces.
907 */
908 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
909
910 if (drv->device_ap_sme && drv->use_monitor) {
911 /*
912 * Non-mac80211 drivers may not support monitor interface.
913 * Make sure we do not get stuck with incorrect capability here
914 * by explicitly testing this.
915 */
916 if (!info.monitor_supported) {
917 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
918 "with device_ap_sme since no monitor mode "
919 "support detected");
920 drv->use_monitor = 0;
921 }
922 }
923
924 /*
925 * If we aren't going to use monitor interfaces, but the
926 * driver doesn't support data TX status, we won't get TX
927 * status for EAPOL frames.
928 */
929 if (!drv->use_monitor && !info.data_tx_status)
930 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
931
932 qca_nl80211_check_dfs_capa(drv);
933 qca_nl80211_get_features(drv);
934
935 /*
936 * To enable offchannel simultaneous support in wpa_supplicant, the
937 * underlying driver needs to support the same along with offchannel TX.
938 * Offchannel TX support is needed since remain_on_channel and
939 * action_tx use some common data structures and hence cannot be
940 * scheduled simultaneously.
941 */
942 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
943 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
944
945 return 0;
946 }
947
948
949 struct phy_info_arg {
950 u16 *num_modes;
951 struct hostapd_hw_modes *modes;
952 int last_mode, last_chan_idx;
953 };
954
955 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
956 struct nlattr *ampdu_factor,
957 struct nlattr *ampdu_density,
958 struct nlattr *mcs_set)
959 {
960 if (capa)
961 mode->ht_capab = nla_get_u16(capa);
962
963 if (ampdu_factor)
964 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
965
966 if (ampdu_density)
967 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
968
969 if (mcs_set && nla_len(mcs_set) >= 16) {
970 u8 *mcs;
971 mcs = nla_data(mcs_set);
972 os_memcpy(mode->mcs_set, mcs, 16);
973 }
974 }
975
976
977 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
978 struct nlattr *capa,
979 struct nlattr *mcs_set)
980 {
981 if (capa)
982 mode->vht_capab = nla_get_u32(capa);
983
984 if (mcs_set && nla_len(mcs_set) >= 8) {
985 u8 *mcs;
986 mcs = nla_data(mcs_set);
987 os_memcpy(mode->vht_mcs_set, mcs, 8);
988 }
989 }
990
991
992 static void phy_info_freq(struct hostapd_hw_modes *mode,
993 struct hostapd_channel_data *chan,
994 struct nlattr *tb_freq[])
995 {
996 u8 channel;
997 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
998 chan->flag = 0;
999 chan->dfs_cac_ms = 0;
1000 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
1001 chan->chan = channel;
1002
1003 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1004 chan->flag |= HOSTAPD_CHAN_DISABLED;
1005 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
1006 chan->flag |= HOSTAPD_CHAN_NO_IR;
1007 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1008 chan->flag |= HOSTAPD_CHAN_RADAR;
1009 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
1010 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
1011 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
1012 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
1013
1014 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
1015 enum nl80211_dfs_state state =
1016 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
1017
1018 switch (state) {
1019 case NL80211_DFS_USABLE:
1020 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
1021 break;
1022 case NL80211_DFS_AVAILABLE:
1023 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
1024 break;
1025 case NL80211_DFS_UNAVAILABLE:
1026 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
1027 break;
1028 }
1029 }
1030
1031 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
1032 chan->dfs_cac_ms = nla_get_u32(
1033 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
1034 }
1035 }
1036
1037
1038 static int phy_info_freqs(struct phy_info_arg *phy_info,
1039 struct hostapd_hw_modes *mode, struct nlattr *tb)
1040 {
1041 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1042 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1043 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1044 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
1045 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1046 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1047 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
1048 };
1049 int new_channels = 0;
1050 struct hostapd_channel_data *channel;
1051 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1052 struct nlattr *nl_freq;
1053 int rem_freq, idx;
1054
1055 if (tb == NULL)
1056 return NL_OK;
1057
1058 nla_for_each_nested(nl_freq, tb, rem_freq) {
1059 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1060 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1061 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1062 continue;
1063 new_channels++;
1064 }
1065
1066 channel = os_realloc_array(mode->channels,
1067 mode->num_channels + new_channels,
1068 sizeof(struct hostapd_channel_data));
1069 if (!channel)
1070 return NL_SKIP;
1071
1072 mode->channels = channel;
1073 mode->num_channels += new_channels;
1074
1075 idx = phy_info->last_chan_idx;
1076
1077 nla_for_each_nested(nl_freq, tb, rem_freq) {
1078 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1079 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1080 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1081 continue;
1082 phy_info_freq(mode, &mode->channels[idx], tb_freq);
1083 idx++;
1084 }
1085 phy_info->last_chan_idx = idx;
1086
1087 return NL_OK;
1088 }
1089
1090
1091 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1092 {
1093 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1094 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1095 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1096 { .type = NLA_FLAG },
1097 };
1098 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1099 struct nlattr *nl_rate;
1100 int rem_rate, idx;
1101
1102 if (tb == NULL)
1103 return NL_OK;
1104
1105 nla_for_each_nested(nl_rate, tb, rem_rate) {
1106 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1107 nla_data(nl_rate), nla_len(nl_rate),
1108 rate_policy);
1109 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1110 continue;
1111 mode->num_rates++;
1112 }
1113
1114 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1115 if (!mode->rates)
1116 return NL_SKIP;
1117
1118 idx = 0;
1119
1120 nla_for_each_nested(nl_rate, tb, rem_rate) {
1121 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1122 nla_data(nl_rate), nla_len(nl_rate),
1123 rate_policy);
1124 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1125 continue;
1126 mode->rates[idx] = nla_get_u32(
1127 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1128 idx++;
1129 }
1130
1131 return NL_OK;
1132 }
1133
1134
1135 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1136 {
1137 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1138 struct hostapd_hw_modes *mode;
1139 int ret;
1140
1141 if (phy_info->last_mode != nl_band->nla_type) {
1142 mode = os_realloc_array(phy_info->modes,
1143 *phy_info->num_modes + 1,
1144 sizeof(*mode));
1145 if (!mode)
1146 return NL_SKIP;
1147 phy_info->modes = mode;
1148
1149 mode = &phy_info->modes[*(phy_info->num_modes)];
1150 os_memset(mode, 0, sizeof(*mode));
1151 mode->mode = NUM_HOSTAPD_MODES;
1152 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1153 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1154
1155 /*
1156 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1157 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1158 * possible streams as unsupported. This will be overridden if
1159 * driver advertises VHT support.
1160 */
1161 mode->vht_mcs_set[0] = 0xff;
1162 mode->vht_mcs_set[1] = 0xff;
1163 mode->vht_mcs_set[4] = 0xff;
1164 mode->vht_mcs_set[5] = 0xff;
1165
1166 *(phy_info->num_modes) += 1;
1167 phy_info->last_mode = nl_band->nla_type;
1168 phy_info->last_chan_idx = 0;
1169 } else
1170 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1171
1172 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1173 nla_len(nl_band), NULL);
1174
1175 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1176 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1177 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1178 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1179 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1180 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1181 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1182 if (ret != NL_OK)
1183 return ret;
1184 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1185 if (ret != NL_OK)
1186 return ret;
1187
1188 return NL_OK;
1189 }
1190
1191
1192 static int phy_info_handler(struct nl_msg *msg, void *arg)
1193 {
1194 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1195 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1196 struct phy_info_arg *phy_info = arg;
1197 struct nlattr *nl_band;
1198 int rem_band;
1199
1200 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1201 genlmsg_attrlen(gnlh, 0), NULL);
1202
1203 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1204 return NL_SKIP;
1205
1206 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1207 {
1208 int res = phy_info_band(phy_info, nl_band);
1209 if (res != NL_OK)
1210 return res;
1211 }
1212
1213 return NL_SKIP;
1214 }
1215
1216
1217 static struct hostapd_hw_modes *
1218 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1219 u16 *num_modes)
1220 {
1221 u16 m;
1222 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1223 int i, mode11g_idx = -1;
1224
1225 /* heuristic to set up modes */
1226 for (m = 0; m < *num_modes; m++) {
1227 if (!modes[m].num_channels)
1228 continue;
1229 if (modes[m].channels[0].freq < 4000) {
1230 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1231 for (i = 0; i < modes[m].num_rates; i++) {
1232 if (modes[m].rates[i] > 200) {
1233 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1234 break;
1235 }
1236 }
1237 } else if (modes[m].channels[0].freq > 50000)
1238 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1239 else
1240 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1241 }
1242
1243 /* If only 802.11g mode is included, use it to construct matching
1244 * 802.11b mode data. */
1245
1246 for (m = 0; m < *num_modes; m++) {
1247 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1248 return modes; /* 802.11b already included */
1249 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1250 mode11g_idx = m;
1251 }
1252
1253 if (mode11g_idx < 0)
1254 return modes; /* 2.4 GHz band not supported at all */
1255
1256 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1257 if (nmodes == NULL)
1258 return modes; /* Could not add 802.11b mode */
1259
1260 mode = &nmodes[*num_modes];
1261 os_memset(mode, 0, sizeof(*mode));
1262 (*num_modes)++;
1263 modes = nmodes;
1264
1265 mode->mode = HOSTAPD_MODE_IEEE80211B;
1266
1267 mode11g = &modes[mode11g_idx];
1268 mode->num_channels = mode11g->num_channels;
1269 mode->channels = os_malloc(mode11g->num_channels *
1270 sizeof(struct hostapd_channel_data));
1271 if (mode->channels == NULL) {
1272 (*num_modes)--;
1273 return modes; /* Could not add 802.11b mode */
1274 }
1275 os_memcpy(mode->channels, mode11g->channels,
1276 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1277
1278 mode->num_rates = 0;
1279 mode->rates = os_malloc(4 * sizeof(int));
1280 if (mode->rates == NULL) {
1281 os_free(mode->channels);
1282 (*num_modes)--;
1283 return modes; /* Could not add 802.11b mode */
1284 }
1285
1286 for (i = 0; i < mode11g->num_rates; i++) {
1287 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1288 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1289 continue;
1290 mode->rates[mode->num_rates] = mode11g->rates[i];
1291 mode->num_rates++;
1292 if (mode->num_rates == 4)
1293 break;
1294 }
1295
1296 if (mode->num_rates == 0) {
1297 os_free(mode->channels);
1298 os_free(mode->rates);
1299 (*num_modes)--;
1300 return modes; /* No 802.11b rates */
1301 }
1302
1303 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1304 "information");
1305
1306 return modes;
1307 }
1308
1309
1310 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1311 int end)
1312 {
1313 int c;
1314
1315 for (c = 0; c < mode->num_channels; c++) {
1316 struct hostapd_channel_data *chan = &mode->channels[c];
1317 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1318 chan->flag |= HOSTAPD_CHAN_HT40;
1319 }
1320 }
1321
1322
1323 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1324 int end)
1325 {
1326 int c;
1327
1328 for (c = 0; c < mode->num_channels; c++) {
1329 struct hostapd_channel_data *chan = &mode->channels[c];
1330 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1331 continue;
1332 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1333 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1334 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1335 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1336 }
1337 }
1338
1339
1340 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1341 struct phy_info_arg *results)
1342 {
1343 u16 m;
1344
1345 for (m = 0; m < *results->num_modes; m++) {
1346 int c;
1347 struct hostapd_hw_modes *mode = &results->modes[m];
1348
1349 for (c = 0; c < mode->num_channels; c++) {
1350 struct hostapd_channel_data *chan = &mode->channels[c];
1351 if ((u32) chan->freq - 10 >= start &&
1352 (u32) chan->freq + 10 <= end)
1353 chan->max_tx_power = max_eirp;
1354 }
1355 }
1356 }
1357
1358
1359 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1360 struct phy_info_arg *results)
1361 {
1362 u16 m;
1363
1364 for (m = 0; m < *results->num_modes; m++) {
1365 if (!(results->modes[m].ht_capab &
1366 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1367 continue;
1368 nl80211_set_ht40_mode(&results->modes[m], start, end);
1369 }
1370 }
1371
1372
1373 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1374 struct phy_info_arg *results)
1375 {
1376 u32 start, end, max_bw;
1377 u16 m;
1378
1379 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1380 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1381 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1382 return;
1383
1384 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1385 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1386 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1387
1388 if (max_bw < 20)
1389 return;
1390
1391 for (m = 0; m < *results->num_modes; m++) {
1392 if (!(results->modes[m].ht_capab &
1393 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1394 continue;
1395 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1396 }
1397 }
1398
1399
1400 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1401 int end)
1402 {
1403 int c;
1404
1405 for (c = 0; c < mode->num_channels; c++) {
1406 struct hostapd_channel_data *chan = &mode->channels[c];
1407 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1408 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1409
1410 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1411 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1412
1413 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1414 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1415
1416 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1417 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1418 }
1419 }
1420
1421
1422 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1423 struct phy_info_arg *results)
1424 {
1425 u32 start, end, max_bw;
1426 u16 m;
1427
1428 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1429 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1430 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1431 return;
1432
1433 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1434 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1435 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1436
1437 if (max_bw < 80)
1438 return;
1439
1440 for (m = 0; m < *results->num_modes; m++) {
1441 if (!(results->modes[m].ht_capab &
1442 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1443 continue;
1444 /* TODO: use a real VHT support indication */
1445 if (!results->modes[m].vht_capab)
1446 continue;
1447
1448 nl80211_set_vht_mode(&results->modes[m], start, end);
1449 }
1450 }
1451
1452
1453 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1454 {
1455 switch (region) {
1456 case NL80211_DFS_UNSET:
1457 return "DFS-UNSET";
1458 case NL80211_DFS_FCC:
1459 return "DFS-FCC";
1460 case NL80211_DFS_ETSI:
1461 return "DFS-ETSI";
1462 case NL80211_DFS_JP:
1463 return "DFS-JP";
1464 default:
1465 return "DFS-invalid";
1466 }
1467 }
1468
1469
1470 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1471 {
1472 struct phy_info_arg *results = arg;
1473 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1474 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1475 struct nlattr *nl_rule;
1476 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1477 int rem_rule;
1478 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1479 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1480 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1481 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1482 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1483 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1484 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1485 };
1486
1487 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1488 genlmsg_attrlen(gnlh, 0), NULL);
1489 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1490 !tb_msg[NL80211_ATTR_REG_RULES]) {
1491 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1492 "available");
1493 return NL_SKIP;
1494 }
1495
1496 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1497 enum nl80211_dfs_regions dfs_domain;
1498 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1499 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1500 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1501 dfs_domain_name(dfs_domain));
1502 } else {
1503 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1504 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1505 }
1506
1507 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1508 {
1509 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1510 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1511 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1512 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1513 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1514 continue;
1515 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1516 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1517 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1518 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1519 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1520 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1521 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1522 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1523
1524 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1525 start, end, max_bw, max_eirp,
1526 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1527 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1528 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1529 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1530 "",
1531 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1532 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1533 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1534 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1535 if (max_bw >= 40)
1536 nl80211_reg_rule_ht40(start, end, results);
1537 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1538 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1539 results);
1540 }
1541
1542 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1543 {
1544 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1545 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1546 nl80211_reg_rule_sec(tb_rule, results);
1547 }
1548
1549 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1550 {
1551 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1552 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1553 nl80211_reg_rule_vht(tb_rule, results);
1554 }
1555
1556 return NL_SKIP;
1557 }
1558
1559
1560 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1561 struct phy_info_arg *results)
1562 {
1563 struct nl_msg *msg;
1564
1565 msg = nlmsg_alloc();
1566 if (!msg)
1567 return -ENOMEM;
1568
1569 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1570 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1571 }
1572
1573
1574 struct hostapd_hw_modes *
1575 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1576 {
1577 u32 feat;
1578 struct i802_bss *bss = priv;
1579 struct wpa_driver_nl80211_data *drv = bss->drv;
1580 int nl_flags = 0;
1581 struct nl_msg *msg;
1582 struct phy_info_arg result = {
1583 .num_modes = num_modes,
1584 .modes = NULL,
1585 .last_mode = -1,
1586 };
1587
1588 *num_modes = 0;
1589 *flags = 0;
1590
1591 feat = get_nl80211_protocol_features(drv);
1592 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
1593 nl_flags = NLM_F_DUMP;
1594 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1595 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
1596 nlmsg_free(msg);
1597 return NULL;
1598 }
1599
1600 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1601 nl80211_set_regulatory_flags(drv, &result);
1602 return wpa_driver_nl80211_postprocess_modes(result.modes,
1603 num_modes);
1604 }
1605
1606 return NULL;
1607 }
Unnamed repository; edit this file 'description' to name the repository.