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_common.h"
16 #include "common/wpa_common.h"
17 #include "common/qca-vendor.h"
18 #include "common/qca-vendor-attr.h"
19 #include "driver_nl80211.h"
20
21
protocol_feature_handler(struct nl_msg * msg,void * arg)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
get_nl80211_protocol_features(struct wpa_driver_nl80211_data * drv)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 auth_supported:1;
70 unsigned int connect_supported:1;
71 unsigned int p2p_go_supported:1;
72 unsigned int p2p_client_supported:1;
73 unsigned int p2p_go_ctwindow_supported:1;
74 unsigned int p2p_concurrent:1;
75 unsigned int channel_switch_supported:1;
76 unsigned int set_qos_map_supported:1;
77 unsigned int have_low_prio_scan:1;
78 unsigned int wmm_ac_supported:1;
79 unsigned int mac_addr_rand_scan_supported:1;
80 unsigned int mac_addr_rand_sched_scan_supported:1;
81 };
82
83
probe_resp_offload_support(int supp_protocols)84 static unsigned int probe_resp_offload_support(int supp_protocols)
85 {
86 unsigned int prot = 0;
87
88 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
89 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
90 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
91 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
92 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
93 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
94 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
95 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
96
97 return prot;
98 }
99
100
wiphy_info_supported_iftypes(struct wiphy_info_data * info,struct nlattr * tb)101 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
102 struct nlattr *tb)
103 {
104 struct nlattr *nl_mode;
105 int i;
106
107 if (tb == NULL)
108 return;
109
110 nla_for_each_nested(nl_mode, tb, i) {
111 switch (nla_type(nl_mode)) {
112 case NL80211_IFTYPE_AP:
113 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
114 break;
115 case NL80211_IFTYPE_MESH_POINT:
116 info->capa->flags |= WPA_DRIVER_FLAGS_MESH;
117 break;
118 case NL80211_IFTYPE_ADHOC:
119 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
120 break;
121 case NL80211_IFTYPE_P2P_DEVICE:
122 info->capa->flags |=
123 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
124 break;
125 case NL80211_IFTYPE_P2P_GO:
126 info->p2p_go_supported = 1;
127 break;
128 case NL80211_IFTYPE_P2P_CLIENT:
129 info->p2p_client_supported = 1;
130 break;
131 }
132 }
133 }
134
135
wiphy_info_iface_comb_process(struct wiphy_info_data * info,struct nlattr * nl_combi)136 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
137 struct nlattr *nl_combi)
138 {
139 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
140 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
141 struct nlattr *nl_limit, *nl_mode;
142 int err, rem_limit, rem_mode;
143 int combination_has_p2p = 0, combination_has_mgd = 0;
144 static struct nla_policy
145 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
146 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
147 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
148 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
149 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
150 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
151 },
152 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
153 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
154 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
155 };
156
157 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
158 nl_combi, iface_combination_policy);
159 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
160 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
161 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
162 return 0; /* broken combination */
163
164 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
165 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
166
167 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
168 rem_limit) {
169 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
170 nl_limit, iface_limit_policy);
171 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
172 return 0; /* broken combination */
173
174 nla_for_each_nested(nl_mode,
175 tb_limit[NL80211_IFACE_LIMIT_TYPES],
176 rem_mode) {
177 int ift = nla_type(nl_mode);
178 if (ift == NL80211_IFTYPE_P2P_GO ||
179 ift == NL80211_IFTYPE_P2P_CLIENT)
180 combination_has_p2p = 1;
181 if (ift == NL80211_IFTYPE_STATION)
182 combination_has_mgd = 1;
183 }
184 if (combination_has_p2p && combination_has_mgd)
185 break;
186 }
187
188 if (combination_has_p2p && combination_has_mgd) {
189 unsigned int num_channels =
190 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
191
192 info->p2p_concurrent = 1;
193 if (info->num_multichan_concurrent < num_channels)
194 info->num_multichan_concurrent = num_channels;
195 }
196
197 return 0;
198 }
199
200
wiphy_info_iface_comb(struct wiphy_info_data * info,struct nlattr * tb)201 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
202 struct nlattr *tb)
203 {
204 struct nlattr *nl_combi;
205 int rem_combi;
206
207 if (tb == NULL)
208 return;
209
210 nla_for_each_nested(nl_combi, tb, rem_combi) {
211 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
212 break;
213 }
214 }
215
216
wiphy_info_supp_cmds(struct wiphy_info_data * info,struct nlattr * tb)217 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
218 struct nlattr *tb)
219 {
220 struct nlattr *nl_cmd;
221 int i;
222
223 if (tb == NULL)
224 return;
225
226 nla_for_each_nested(nl_cmd, tb, i) {
227 switch (nla_get_u32(nl_cmd)) {
228 case NL80211_CMD_AUTHENTICATE:
229 info->auth_supported = 1;
230 break;
231 case NL80211_CMD_CONNECT:
232 info->connect_supported = 1;
233 break;
234 case NL80211_CMD_START_SCHED_SCAN:
235 info->capa->sched_scan_supported = 1;
236 break;
237 case NL80211_CMD_PROBE_CLIENT:
238 info->poll_command_supported = 1;
239 break;
240 case NL80211_CMD_CHANNEL_SWITCH:
241 info->channel_switch_supported = 1;
242 break;
243 case NL80211_CMD_SET_QOS_MAP:
244 info->set_qos_map_supported = 1;
245 break;
246 }
247 }
248 }
249
250
wiphy_info_cipher_suites(struct wiphy_info_data * info,struct nlattr * tb)251 static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
252 struct nlattr *tb)
253 {
254 int i, num;
255 u32 *ciphers;
256
257 if (tb == NULL)
258 return;
259
260 num = nla_len(tb) / sizeof(u32);
261 ciphers = nla_data(tb);
262 for (i = 0; i < num; i++) {
263 u32 c = ciphers[i];
264
265 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
266 c >> 24, (c >> 16) & 0xff,
267 (c >> 8) & 0xff, c & 0xff);
268 switch (c) {
269 case RSN_CIPHER_SUITE_CCMP_256:
270 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
271 break;
272 case RSN_CIPHER_SUITE_GCMP_256:
273 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
274 break;
275 case RSN_CIPHER_SUITE_CCMP:
276 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
277 break;
278 case RSN_CIPHER_SUITE_GCMP:
279 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
280 break;
281 case RSN_CIPHER_SUITE_TKIP:
282 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
283 break;
284 case RSN_CIPHER_SUITE_WEP104:
285 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
286 break;
287 case RSN_CIPHER_SUITE_WEP40:
288 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
289 break;
290 case RSN_CIPHER_SUITE_AES_128_CMAC:
291 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
292 break;
293 case RSN_CIPHER_SUITE_BIP_GMAC_128:
294 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
295 break;
296 case RSN_CIPHER_SUITE_BIP_GMAC_256:
297 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
298 break;
299 case RSN_CIPHER_SUITE_BIP_CMAC_256:
300 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
301 break;
302 case RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED:
303 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
304 break;
305 }
306 }
307 }
308
309
wiphy_info_max_roc(struct wpa_driver_capa * capa,struct nlattr * tb)310 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
311 struct nlattr *tb)
312 {
313 if (tb)
314 capa->max_remain_on_chan = nla_get_u32(tb);
315 }
316
317
wiphy_info_tdls(struct wpa_driver_capa * capa,struct nlattr * tdls,struct nlattr * ext_setup)318 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
319 struct nlattr *ext_setup)
320 {
321 if (tdls == NULL)
322 return;
323
324 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
325 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
326
327 if (ext_setup) {
328 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
329 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
330 }
331 }
332
333
ext_feature_isset(const u8 * ext_features,int ext_features_len,enum nl80211_ext_feature_index ftidx)334 static int ext_feature_isset(const u8 *ext_features, int ext_features_len,
335 enum nl80211_ext_feature_index ftidx)
336 {
337 u8 ft_byte;
338
339 if ((int) ftidx / 8 >= ext_features_len)
340 return 0;
341
342 ft_byte = ext_features[ftidx / 8];
343 return (ft_byte & BIT(ftidx % 8)) != 0;
344 }
345
346
wiphy_info_ext_feature_flags(struct wiphy_info_data * info,struct nlattr * tb)347 static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info,
348 struct nlattr *tb)
349 {
350 struct wpa_driver_capa *capa = info->capa;
351 u8 *ext_features;
352 int len;
353
354 if (tb == NULL)
355 return;
356
357 ext_features = nla_data(tb);
358 len = nla_len(tb);
359
360 if (ext_feature_isset(ext_features, len, NL80211_EXT_FEATURE_VHT_IBSS))
361 capa->flags |= WPA_DRIVER_FLAGS_VHT_IBSS;
362
363 if (ext_feature_isset(ext_features, len, NL80211_EXT_FEATURE_RRM))
364 capa->rrm_flags |= WPA_DRIVER_FLAGS_SUPPORT_RRM;
365
366 if (ext_feature_isset(ext_features, len, NL80211_EXT_FEATURE_FILS_STA))
367 capa->flags |= WPA_DRIVER_FLAGS_SUPPORT_FILS;
368
369 if (ext_feature_isset(ext_features, len,
370 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
371 capa->flags |= WPA_DRIVER_FLAGS_BEACON_RATE_LEGACY;
372
373 if (ext_feature_isset(ext_features, len,
374 NL80211_EXT_FEATURE_BEACON_RATE_HT))
375 capa->flags |= WPA_DRIVER_FLAGS_BEACON_RATE_HT;
376
377 if (ext_feature_isset(ext_features, len,
378 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
379 capa->flags |= WPA_DRIVER_FLAGS_BEACON_RATE_VHT;
380
381 if (ext_feature_isset(ext_features, len,
382 NL80211_EXT_FEATURE_SET_SCAN_DWELL))
383 capa->rrm_flags |= WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL;
384
385 if (ext_feature_isset(ext_features, len,
386 NL80211_EXT_FEATURE_SCAN_START_TIME) &&
387 ext_feature_isset(ext_features, len,
388 NL80211_EXT_FEATURE_BSS_PARENT_TSF) &&
389 ext_feature_isset(ext_features, len,
390 NL80211_EXT_FEATURE_SET_SCAN_DWELL))
391 capa->rrm_flags |= WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT;
392 if (ext_feature_isset(ext_features, len,
393 NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA))
394 capa->flags |= WPA_DRIVER_FLAGS_MGMT_TX_RANDOM_TA;
395 if (ext_feature_isset(ext_features, len,
396 NL80211_EXT_FEATURE_MGMT_TX_RANDOM_TA_CONNECTED))
397 capa->flags |= WPA_DRIVER_FLAGS_MGMT_TX_RANDOM_TA_CONNECTED;
398 if (ext_feature_isset(ext_features, len,
399 NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI))
400 capa->flags |= WPA_DRIVER_FLAGS_SCHED_SCAN_RELATIVE_RSSI;
401 }
402
403
wiphy_info_feature_flags(struct wiphy_info_data * info,struct nlattr * tb)404 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
405 struct nlattr *tb)
406 {
407 u32 flags;
408 struct wpa_driver_capa *capa = info->capa;
409
410 if (tb == NULL)
411 return;
412
413 flags = nla_get_u32(tb);
414
415 if (flags & NL80211_FEATURE_SK_TX_STATUS)
416 info->data_tx_status = 1;
417
418 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
419 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
420
421 if (flags & NL80211_FEATURE_SAE)
422 capa->flags |= WPA_DRIVER_FLAGS_SAE;
423
424 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
425 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
426
427 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
428 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
429
430 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) {
431 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch");
432 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH;
433 }
434
435 if (flags & NL80211_FEATURE_P2P_GO_CTWIN)
436 info->p2p_go_ctwindow_supported = 1;
437
438 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
439 info->have_low_prio_scan = 1;
440
441 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)
442 info->mac_addr_rand_scan_supported = 1;
443
444 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR)
445 info->mac_addr_rand_sched_scan_supported = 1;
446
447 if (flags & NL80211_FEATURE_STATIC_SMPS)
448 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
449
450 if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
451 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
452
453 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
454 info->wmm_ac_supported = 1;
455
456 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES)
457 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES;
458
459 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES)
460 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES;
461
462 if (flags & NL80211_FEATURE_QUIET)
463 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET;
464
465 if (flags & NL80211_FEATURE_TX_POWER_INSERTION)
466 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION;
467
468 if (flags & NL80211_FEATURE_HT_IBSS)
469 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS;
470
471 if (flags & NL80211_FEATURE_FULL_AP_CLIENT_STATE)
472 capa->flags |= WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE;
473 }
474
475
wiphy_info_probe_resp_offload(struct wpa_driver_capa * capa,struct nlattr * tb)476 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
477 struct nlattr *tb)
478 {
479 u32 protocols;
480
481 if (tb == NULL)
482 return;
483
484 protocols = nla_get_u32(tb);
485 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
486 "mode");
487 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
488 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
489 }
490
491
wiphy_info_wowlan_triggers(struct wpa_driver_capa * capa,struct nlattr * tb)492 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
493 struct nlattr *tb)
494 {
495 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
496
497 if (tb == NULL)
498 return;
499
500 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
501 tb, NULL))
502 return;
503
504 if (triggers[NL80211_WOWLAN_TRIG_ANY])
505 capa->wowlan_triggers.any = 1;
506 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
507 capa->wowlan_triggers.disconnect = 1;
508 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
509 capa->wowlan_triggers.magic_pkt = 1;
510 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
511 capa->wowlan_triggers.gtk_rekey_failure = 1;
512 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
513 capa->wowlan_triggers.eap_identity_req = 1;
514 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
515 capa->wowlan_triggers.four_way_handshake = 1;
516 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
517 capa->wowlan_triggers.rfkill_release = 1;
518 }
519
520
wiphy_info_extended_capab(struct wpa_driver_nl80211_data * drv,struct nlattr * tb)521 static void wiphy_info_extended_capab(struct wpa_driver_nl80211_data *drv,
522 struct nlattr *tb)
523 {
524 int rem = 0, i;
525 struct nlattr *tb1[NL80211_ATTR_MAX + 1], *attr;
526
527 if (!tb || drv->num_iface_ext_capa == NL80211_IFTYPE_MAX)
528 return;
529
530 nla_for_each_nested(attr, tb, rem) {
531 unsigned int len;
532 struct drv_nl80211_ext_capa *capa;
533
534 nla_parse(tb1, NL80211_ATTR_MAX, nla_data(attr),
535 nla_len(attr), NULL);
536
537 if (!tb1[NL80211_ATTR_IFTYPE] ||
538 !tb1[NL80211_ATTR_EXT_CAPA] ||
539 !tb1[NL80211_ATTR_EXT_CAPA_MASK])
540 continue;
541
542 capa = &drv->iface_ext_capa[drv->num_iface_ext_capa];
543 capa->iftype = nla_get_u32(tb1[NL80211_ATTR_IFTYPE]);
544 wpa_printf(MSG_DEBUG,
545 "nl80211: Driver-advertised extended capabilities for interface type %s",
546 nl80211_iftype_str(capa->iftype));
547
548 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA]);
549 capa->ext_capa = os_malloc(len);
550 if (!capa->ext_capa)
551 goto err;
552
553 os_memcpy(capa->ext_capa, nla_data(tb1[NL80211_ATTR_EXT_CAPA]),
554 len);
555 capa->ext_capa_len = len;
556 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities",
557 capa->ext_capa, capa->ext_capa_len);
558
559 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA_MASK]);
560 capa->ext_capa_mask = os_malloc(len);
561 if (!capa->ext_capa_mask)
562 goto err;
563
564 os_memcpy(capa->ext_capa_mask,
565 nla_data(tb1[NL80211_ATTR_EXT_CAPA_MASK]), len);
566 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities mask",
567 capa->ext_capa_mask, capa->ext_capa_len);
568
569 drv->num_iface_ext_capa++;
570 if (drv->num_iface_ext_capa == NL80211_IFTYPE_MAX)
571 break;
572 }
573
574 return;
575
576 err:
577 /* Cleanup allocated memory on error */
578 for (i = 0; i < NL80211_IFTYPE_MAX; i++) {
579 os_free(drv->iface_ext_capa[i].ext_capa);
580 drv->iface_ext_capa[i].ext_capa = NULL;
581 os_free(drv->iface_ext_capa[i].ext_capa_mask);
582 drv->iface_ext_capa[i].ext_capa_mask = NULL;
583 drv->iface_ext_capa[i].ext_capa_len = 0;
584 }
585 drv->num_iface_ext_capa = 0;
586 }
587
588
wiphy_info_handler(struct nl_msg * msg,void * arg)589 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
590 {
591 struct nlattr *tb[NL80211_ATTR_MAX + 1];
592 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
593 struct wiphy_info_data *info = arg;
594 struct wpa_driver_capa *capa = info->capa;
595 struct wpa_driver_nl80211_data *drv = info->drv;
596
597 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
598 genlmsg_attrlen(gnlh, 0), NULL);
599
600 if (tb[NL80211_ATTR_WIPHY])
601 drv->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
602
603 if (tb[NL80211_ATTR_WIPHY_NAME])
604 os_strlcpy(drv->phyname,
605 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
606 sizeof(drv->phyname));
607 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
608 capa->max_scan_ssids =
609 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
610
611 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
612 capa->max_sched_scan_ssids =
613 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
614
615 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS] &&
616 tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL] &&
617 tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]) {
618 capa->max_sched_scan_plans =
619 nla_get_u32(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS]);
620
621 capa->max_sched_scan_plan_interval =
622 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL]);
623
624 capa->max_sched_scan_plan_iterations =
625 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]);
626 }
627
628 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
629 capa->max_match_sets =
630 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
631
632 if (tb[NL80211_ATTR_MAC_ACL_MAX])
633 capa->max_acl_mac_addrs =
634 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
635
636 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
637 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
638 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
639 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
640
641 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
642 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
643 "off-channel TX");
644 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
645 }
646
647 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
648 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
649 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
650 }
651
652 wiphy_info_max_roc(capa,
653 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
654
655 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
656 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
657
658 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
659 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
660
661 if (tb[NL80211_ATTR_DEVICE_AP_SME])
662 info->device_ap_sme = 1;
663
664 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
665 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]);
666 wiphy_info_probe_resp_offload(capa,
667 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
668
669 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
670 drv->extended_capa == NULL) {
671 drv->extended_capa =
672 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
673 if (drv->extended_capa) {
674 os_memcpy(drv->extended_capa,
675 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
676 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
677 drv->extended_capa_len =
678 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
679 wpa_hexdump(MSG_DEBUG,
680 "nl80211: Driver-advertised extended capabilities (default)",
681 drv->extended_capa, drv->extended_capa_len);
682 }
683 drv->extended_capa_mask =
684 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
685 if (drv->extended_capa_mask) {
686 os_memcpy(drv->extended_capa_mask,
687 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]),
688 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
689 wpa_hexdump(MSG_DEBUG,
690 "nl80211: Driver-advertised extended capabilities mask (default)",
691 drv->extended_capa_mask,
692 drv->extended_capa_len);
693 } else {
694 os_free(drv->extended_capa);
695 drv->extended_capa = NULL;
696 drv->extended_capa_len = 0;
697 }
698 }
699
700 wiphy_info_extended_capab(drv, tb[NL80211_ATTR_IFTYPE_EXT_CAPA]);
701
702 if (tb[NL80211_ATTR_VENDOR_DATA]) {
703 struct nlattr *nl;
704 int rem;
705
706 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
707 struct nl80211_vendor_cmd_info *vinfo;
708 if (nla_len(nl) != sizeof(*vinfo)) {
709 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
710 continue;
711 }
712 vinfo = nla_data(nl);
713 if (vinfo->vendor_id == OUI_QCA) {
714 switch (vinfo->subcmd) {
715 case QCA_NL80211_VENDOR_SUBCMD_TEST:
716 drv->vendor_cmd_test_avail = 1;
717 break;
718 #ifdef CONFIG_DRIVER_NL80211_QCA
719 case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
720 drv->roaming_vendor_cmd_avail = 1;
721 break;
722 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
723 drv->dfs_vendor_cmd_avail = 1;
724 break;
725 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
726 drv->get_features_vendor_cmd_avail = 1;
727 break;
728 case QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST:
729 drv->get_pref_freq_list = 1;
730 break;
731 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL:
732 drv->set_prob_oper_freq = 1;
733 break;
734 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
735 drv->capa.flags |=
736 WPA_DRIVER_FLAGS_ACS_OFFLOAD;
737 break;
738 case QCA_NL80211_VENDOR_SUBCMD_SETBAND:
739 drv->setband_vendor_cmd_avail = 1;
740 break;
741 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN:
742 drv->scan_vendor_cmd_avail = 1;
743 break;
744 case QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION:
745 drv->set_wifi_conf_vendor_cmd_avail = 1;
746 break;
747 case QCA_NL80211_VENDOR_SUBCMD_GET_HE_CAPABILITIES:
748 drv->he_capab_vendor_cmd_avail = 1;
749 break;
750 #endif /* CONFIG_DRIVER_NL80211_QCA */
751 }
752 }
753
754 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
755 vinfo->vendor_id, vinfo->subcmd);
756 }
757 }
758
759 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
760 struct nlattr *nl;
761 int rem;
762
763 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
764 struct nl80211_vendor_cmd_info *vinfo;
765 if (nla_len(nl) != sizeof(*vinfo)) {
766 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
767 continue;
768 }
769 vinfo = nla_data(nl);
770 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
771 vinfo->vendor_id, vinfo->subcmd);
772 }
773 }
774
775 wiphy_info_wowlan_triggers(capa,
776 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
777
778 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
779 capa->max_stations =
780 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
781
782 if (tb[NL80211_ATTR_MAX_CSA_COUNTERS])
783 capa->max_csa_counters =
784 nla_get_u8(tb[NL80211_ATTR_MAX_CSA_COUNTERS]);
785
786 return NL_SKIP;
787 }
788
789
wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data * drv,struct wiphy_info_data * info)790 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
791 struct wiphy_info_data *info)
792 {
793 u32 feat;
794 struct nl_msg *msg;
795 int flags = 0;
796
797 os_memset(info, 0, sizeof(*info));
798 info->capa = &drv->capa;
799 info->drv = drv;
800
801 feat = get_nl80211_protocol_features(drv);
802 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
803 flags = NLM_F_DUMP;
804 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
805 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
806 nlmsg_free(msg);
807 return -1;
808 }
809
810 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
811 return -1;
812
813 if (info->auth_supported)
814 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
815 else if (!info->connect_supported) {
816 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
817 "authentication/association or connect commands");
818 info->error = 1;
819 }
820
821 if (info->p2p_go_supported && info->p2p_client_supported)
822 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
823 if (info->p2p_concurrent) {
824 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
825 "interface (driver advertised support)");
826 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
827 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
828 }
829 if (info->num_multichan_concurrent > 1) {
830 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
831 "concurrent (driver advertised support)");
832 drv->capa.num_multichan_concurrent =
833 info->num_multichan_concurrent;
834 }
835 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
836 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
837
838 /* default to 5000 since early versions of mac80211 don't set it */
839 if (!drv->capa.max_remain_on_chan)
840 drv->capa.max_remain_on_chan = 5000;
841
842 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
843
844 drv->capa.mac_addr_rand_sched_scan_supported =
845 info->mac_addr_rand_sched_scan_supported;
846 drv->capa.mac_addr_rand_scan_supported =
847 info->mac_addr_rand_scan_supported;
848
849 if (info->channel_switch_supported) {
850 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
851 if (!drv->capa.max_csa_counters)
852 drv->capa.max_csa_counters = 1;
853 }
854
855 if (!drv->capa.max_sched_scan_plans) {
856 drv->capa.max_sched_scan_plans = 1;
857 drv->capa.max_sched_scan_plan_interval = UINT32_MAX;
858 drv->capa.max_sched_scan_plan_iterations = 0;
859 }
860
861 return 0;
862 }
863
864
865 #ifdef CONFIG_DRIVER_NL80211_QCA
866
dfs_info_handler(struct nl_msg * msg,void * arg)867 static int dfs_info_handler(struct nl_msg *msg, void *arg)
868 {
869 struct nlattr *tb[NL80211_ATTR_MAX + 1];
870 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
871 int *dfs_capability_ptr = arg;
872
873 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
874 genlmsg_attrlen(gnlh, 0), NULL);
875
876 if (tb[NL80211_ATTR_VENDOR_DATA]) {
877 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
878 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
879
880 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
881 nla_data(nl_vend), nla_len(nl_vend), NULL);
882
883 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
884 u32 val;
885 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
886 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
887 val);
888 *dfs_capability_ptr = val;
889 }
890 }
891
892 return NL_SKIP;
893 }
894
895
qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data * drv)896 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
897 {
898 struct nl_msg *msg;
899 int dfs_capability = 0;
900 int ret;
901
902 if (!drv->dfs_vendor_cmd_avail)
903 return;
904
905 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
906 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
907 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
908 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
909 nlmsg_free(msg);
910 return;
911 }
912
913 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
914 if (!ret && dfs_capability)
915 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
916 }
917
918
qca_nl80211_he_capab_handler(struct nl_msg * msg,void * arg)919 static int qca_nl80211_he_capab_handler(struct nl_msg *msg, void *arg)
920 {
921 struct nlattr *tb[NL80211_ATTR_MAX + 1];
922 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
923 struct he_capabilities *he_capab = arg;
924 struct nlattr *nl_vend;
925 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_CAPABILITIES_MAX + 1];
926 size_t len;
927
928 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
929 genlmsg_attrlen(gnlh, 0), NULL);
930
931 if (!tb[NL80211_ATTR_VENDOR_DATA])
932 return NL_SKIP;
933
934 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
935 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_HE_CAPABILITIES_MAX,
936 nla_data(nl_vend), nla_len(nl_vend), NULL);
937
938 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_SUPPORTED]) {
939 u8 he_supported;
940
941 he_supported = nla_get_u8(
942 tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_SUPPORTED]);
943 wpa_printf(MSG_DEBUG, "nl80211: HE capabilities supported: %u",
944 he_supported);
945 he_capab->he_supported = he_supported;
946 if (!he_supported)
947 return NL_SKIP;
948 }
949
950 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_PHY_CAPAB]) {
951 len = nla_len(tb_vendor[QCA_WLAN_VENDOR_ATTR_PHY_CAPAB]);
952
953 if (len > sizeof(he_capab->phy_cap))
954 len = sizeof(he_capab->phy_cap);
955 os_memcpy(he_capab->phy_cap,
956 nla_data(tb_vendor[QCA_WLAN_VENDOR_ATTR_PHY_CAPAB]),
957 len);
958 }
959
960 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_MAC_CAPAB])
961 he_capab->mac_cap =
962 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_MAC_CAPAB]);
963
964 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_MCS])
965 he_capab->mcs =
966 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_HE_MCS]);
967
968 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_NUM_SS])
969 he_capab->ppet.numss_m1 =
970 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_NUM_SS]);
971
972 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_RU_IDX_MASK])
973 he_capab->ppet.ru_count =
974 nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_RU_IDX_MASK]);
975
976 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_PPE_THRESHOLD]) {
977 len = nla_len(tb_vendor[QCA_WLAN_VENDOR_ATTR_PPE_THRESHOLD]);
978
979 if (len > sizeof(he_capab->ppet.ppet16_ppet8_ru3_ru0))
980 len = sizeof(he_capab->ppet.ppet16_ppet8_ru3_ru0);
981 os_memcpy(he_capab->ppet.ppet16_ppet8_ru3_ru0,
982 nla_data(tb_vendor[QCA_WLAN_VENDOR_ATTR_PPE_THRESHOLD]),
983 len);
984 }
985
986 return NL_SKIP;
987 }
988
989
qca_nl80211_check_he_capab(struct wpa_driver_nl80211_data * drv)990 static void qca_nl80211_check_he_capab(struct wpa_driver_nl80211_data *drv)
991 {
992 struct nl_msg *msg;
993 int ret;
994
995 if (!drv->he_capab_vendor_cmd_avail)
996 return;
997
998 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
999 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
1000 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
1001 QCA_NL80211_VENDOR_SUBCMD_GET_HE_CAPABILITIES)) {
1002 nlmsg_free(msg);
1003 return;
1004 }
1005
1006 ret = send_and_recv_msgs(drv, msg, qca_nl80211_he_capab_handler,
1007 &drv->he_capab);
1008 if (!ret && drv->he_capab.he_supported)
1009 drv->capa.flags |= WPA_DRIVER_FLAGS_HE_CAPABILITIES;
1010 }
1011
1012
1013 struct features_info {
1014 u8 *flags;
1015 size_t flags_len;
1016 struct wpa_driver_capa *capa;
1017 };
1018
1019
features_info_handler(struct nl_msg * msg,void * arg)1020 static int features_info_handler(struct nl_msg *msg, void *arg)
1021 {
1022 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1023 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1024 struct features_info *info = arg;
1025 struct nlattr *nl_vend, *attr;
1026
1027 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1028 genlmsg_attrlen(gnlh, 0), NULL);
1029
1030 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
1031 if (nl_vend) {
1032 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
1033
1034 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
1035 nla_data(nl_vend), nla_len(nl_vend), NULL);
1036
1037 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS];
1038 if (attr) {
1039 int len = nla_len(attr);
1040 info->flags = os_malloc(len);
1041 if (info->flags != NULL) {
1042 os_memcpy(info->flags, nla_data(attr), len);
1043 info->flags_len = len;
1044 }
1045 }
1046 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA];
1047 if (attr)
1048 info->capa->conc_capab = nla_get_u32(attr);
1049
1050 attr = tb_vendor[
1051 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND];
1052 if (attr)
1053 info->capa->max_conc_chan_2_4 = nla_get_u32(attr);
1054
1055 attr = tb_vendor[
1056 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND];
1057 if (attr)
1058 info->capa->max_conc_chan_5_0 = nla_get_u32(attr);
1059 }
1060
1061 return NL_SKIP;
1062 }
1063
1064
check_feature(enum qca_wlan_vendor_features feature,struct features_info * info)1065 static int check_feature(enum qca_wlan_vendor_features feature,
1066 struct features_info *info)
1067 {
1068 size_t idx = feature / 8;
1069
1070 return (idx < info->flags_len) &&
1071 (info->flags[idx] & BIT(feature % 8));
1072 }
1073
1074
qca_nl80211_get_features(struct wpa_driver_nl80211_data * drv)1075 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
1076 {
1077 struct nl_msg *msg;
1078 struct features_info info;
1079 int ret;
1080
1081 if (!drv->get_features_vendor_cmd_avail)
1082 return;
1083
1084 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
1085 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
1086 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
1087 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
1088 nlmsg_free(msg);
1089 return;
1090 }
1091
1092 os_memset(&info, 0, sizeof(info));
1093 info.capa = &drv->capa;
1094 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
1095 if (ret || !info.flags)
1096 return;
1097
1098 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
1099 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
1100
1101 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
1102 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
1103
1104 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS,
1105 &info))
1106 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
1107 if (check_feature(QCA_WLAN_VENDOR_FEATURE_P2P_LISTEN_OFFLOAD, &info))
1108 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD;
1109 os_free(info.flags);
1110 }
1111
1112 #endif /* CONFIG_DRIVER_NL80211_QCA */
1113
1114
wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data * drv)1115 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
1116 {
1117 struct wiphy_info_data info;
1118 if (wpa_driver_nl80211_get_info(drv, &info))
1119 return -1;
1120
1121 if (info.error)
1122 return -1;
1123
1124 drv->has_capability = 1;
1125 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1126 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1127 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1128 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK |
1129 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B |
1130 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192;
1131 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1132 WPA_DRIVER_AUTH_SHARED |
1133 WPA_DRIVER_AUTH_LEAP;
1134
1135 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
1136 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1137 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
1138
1139 /*
1140 * As all cfg80211 drivers must support cases where the AP interface is
1141 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
1142 * case that the user space daemon has crashed, they must be able to
1143 * cleanup all stations and key entries in the AP tear down flow. Thus,
1144 * this flag can/should always be set for cfg80211 drivers.
1145 */
1146 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
1147
1148 if (!info.device_ap_sme) {
1149 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
1150
1151 /*
1152 * No AP SME is currently assumed to also indicate no AP MLME
1153 * in the driver/firmware.
1154 */
1155 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
1156 }
1157
1158 drv->device_ap_sme = info.device_ap_sme;
1159 drv->poll_command_supported = info.poll_command_supported;
1160 drv->data_tx_status = info.data_tx_status;
1161 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported;
1162 if (info.set_qos_map_supported)
1163 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
1164 drv->have_low_prio_scan = info.have_low_prio_scan;
1165
1166 /*
1167 * If poll command and tx status are supported, mac80211 is new enough
1168 * to have everything we need to not need monitor interfaces.
1169 */
1170 drv->use_monitor = !info.device_ap_sme &&
1171 (!info.poll_command_supported || !info.data_tx_status);
1172
1173 /*
1174 * If we aren't going to use monitor interfaces, but the
1175 * driver doesn't support data TX status, we won't get TX
1176 * status for EAPOL frames.
1177 */
1178 if (!drv->use_monitor && !info.data_tx_status)
1179 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
1180
1181 #ifdef CONFIG_DRIVER_NL80211_QCA
1182 qca_nl80211_check_dfs_capa(drv);
1183 qca_nl80211_get_features(drv);
1184 qca_nl80211_check_he_capab(drv);
1185
1186 /*
1187 * To enable offchannel simultaneous support in wpa_supplicant, the
1188 * underlying driver needs to support the same along with offchannel TX.
1189 * Offchannel TX support is needed since remain_on_channel and
1190 * action_tx use some common data structures and hence cannot be
1191 * scheduled simultaneously.
1192 */
1193 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
1194 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
1195 #endif /* CONFIG_DRIVER_NL80211_QCA */
1196
1197 return 0;
1198 }
1199
1200
1201 struct phy_info_arg {
1202 u16 *num_modes;
1203 struct hostapd_hw_modes *modes;
1204 int last_mode, last_chan_idx;
1205 int failed;
1206 };
1207
phy_info_ht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * ampdu_factor,struct nlattr * ampdu_density,struct nlattr * mcs_set)1208 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
1209 struct nlattr *ampdu_factor,
1210 struct nlattr *ampdu_density,
1211 struct nlattr *mcs_set)
1212 {
1213 if (capa)
1214 mode->ht_capab = nla_get_u16(capa);
1215
1216 if (ampdu_factor)
1217 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
1218
1219 if (ampdu_density)
1220 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
1221
1222 if (mcs_set && nla_len(mcs_set) >= 16) {
1223 u8 *mcs;
1224 mcs = nla_data(mcs_set);
1225 os_memcpy(mode->mcs_set, mcs, 16);
1226 }
1227 }
1228
1229
phy_info_vht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * mcs_set)1230 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
1231 struct nlattr *capa,
1232 struct nlattr *mcs_set)
1233 {
1234 if (capa)
1235 mode->vht_capab = nla_get_u32(capa);
1236
1237 if (mcs_set && nla_len(mcs_set) >= 8) {
1238 u8 *mcs;
1239 mcs = nla_data(mcs_set);
1240 os_memcpy(mode->vht_mcs_set, mcs, 8);
1241 }
1242 }
1243
1244
phy_info_freq(struct hostapd_hw_modes * mode,struct hostapd_channel_data * chan,struct nlattr * tb_freq[])1245 static void phy_info_freq(struct hostapd_hw_modes *mode,
1246 struct hostapd_channel_data *chan,
1247 struct nlattr *tb_freq[])
1248 {
1249 u8 channel;
1250 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1251 chan->flag = 0;
1252 chan->dfs_cac_ms = 0;
1253 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
1254 chan->chan = channel;
1255
1256 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1257 chan->flag |= HOSTAPD_CHAN_DISABLED;
1258 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
1259 chan->flag |= HOSTAPD_CHAN_NO_IR;
1260 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1261 chan->flag |= HOSTAPD_CHAN_RADAR;
1262 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
1263 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
1264 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
1265 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
1266
1267 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
1268 enum nl80211_dfs_state state =
1269 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
1270
1271 switch (state) {
1272 case NL80211_DFS_USABLE:
1273 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
1274 break;
1275 case NL80211_DFS_AVAILABLE:
1276 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
1277 break;
1278 case NL80211_DFS_UNAVAILABLE:
1279 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
1280 break;
1281 }
1282 }
1283
1284 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
1285 chan->dfs_cac_ms = nla_get_u32(
1286 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
1287 }
1288 }
1289
1290
phy_info_freqs(struct phy_info_arg * phy_info,struct hostapd_hw_modes * mode,struct nlattr * tb)1291 static int phy_info_freqs(struct phy_info_arg *phy_info,
1292 struct hostapd_hw_modes *mode, struct nlattr *tb)
1293 {
1294 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1295 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1296 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1297 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
1298 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1299 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1300 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
1301 };
1302 int new_channels = 0;
1303 struct hostapd_channel_data *channel;
1304 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1305 struct nlattr *nl_freq;
1306 int rem_freq, idx;
1307
1308 if (tb == NULL)
1309 return NL_OK;
1310
1311 nla_for_each_nested(nl_freq, tb, rem_freq) {
1312 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1313 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1314 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1315 continue;
1316 new_channels++;
1317 }
1318
1319 channel = os_realloc_array(mode->channels,
1320 mode->num_channels + new_channels,
1321 sizeof(struct hostapd_channel_data));
1322 if (!channel)
1323 return NL_STOP;
1324
1325 mode->channels = channel;
1326 mode->num_channels += new_channels;
1327
1328 idx = phy_info->last_chan_idx;
1329
1330 nla_for_each_nested(nl_freq, tb, rem_freq) {
1331 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1332 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1333 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1334 continue;
1335 phy_info_freq(mode, &mode->channels[idx], tb_freq);
1336 idx++;
1337 }
1338 phy_info->last_chan_idx = idx;
1339
1340 return NL_OK;
1341 }
1342
1343
phy_info_rates(struct hostapd_hw_modes * mode,struct nlattr * tb)1344 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1345 {
1346 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1347 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1348 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1349 { .type = NLA_FLAG },
1350 };
1351 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1352 struct nlattr *nl_rate;
1353 int rem_rate, idx;
1354
1355 if (tb == NULL)
1356 return NL_OK;
1357
1358 nla_for_each_nested(nl_rate, tb, rem_rate) {
1359 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1360 nla_data(nl_rate), nla_len(nl_rate),
1361 rate_policy);
1362 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1363 continue;
1364 mode->num_rates++;
1365 }
1366
1367 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1368 if (!mode->rates)
1369 return NL_STOP;
1370
1371 idx = 0;
1372
1373 nla_for_each_nested(nl_rate, tb, rem_rate) {
1374 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1375 nla_data(nl_rate), nla_len(nl_rate),
1376 rate_policy);
1377 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1378 continue;
1379 mode->rates[idx] = nla_get_u32(
1380 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1381 idx++;
1382 }
1383
1384 return NL_OK;
1385 }
1386
1387
phy_info_band(struct phy_info_arg * phy_info,struct nlattr * nl_band)1388 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1389 {
1390 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1391 struct hostapd_hw_modes *mode;
1392 int ret;
1393
1394 if (phy_info->last_mode != nl_band->nla_type) {
1395 mode = os_realloc_array(phy_info->modes,
1396 *phy_info->num_modes + 1,
1397 sizeof(*mode));
1398 if (!mode) {
1399 phy_info->failed = 1;
1400 return NL_STOP;
1401 }
1402 phy_info->modes = mode;
1403
1404 mode = &phy_info->modes[*(phy_info->num_modes)];
1405 os_memset(mode, 0, sizeof(*mode));
1406 mode->mode = NUM_HOSTAPD_MODES;
1407 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1408 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1409
1410 /*
1411 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1412 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1413 * possible streams as unsupported. This will be overridden if
1414 * driver advertises VHT support.
1415 */
1416 mode->vht_mcs_set[0] = 0xff;
1417 mode->vht_mcs_set[1] = 0xff;
1418 mode->vht_mcs_set[4] = 0xff;
1419 mode->vht_mcs_set[5] = 0xff;
1420
1421 *(phy_info->num_modes) += 1;
1422 phy_info->last_mode = nl_band->nla_type;
1423 phy_info->last_chan_idx = 0;
1424 } else
1425 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1426
1427 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1428 nla_len(nl_band), NULL);
1429
1430 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1431 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1432 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1433 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1434 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1435 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1436 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1437 if (ret == NL_OK)
1438 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1439 if (ret != NL_OK) {
1440 phy_info->failed = 1;
1441 return ret;
1442 }
1443
1444 return NL_OK;
1445 }
1446
1447
phy_info_handler(struct nl_msg * msg,void * arg)1448 static int phy_info_handler(struct nl_msg *msg, void *arg)
1449 {
1450 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1451 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1452 struct phy_info_arg *phy_info = arg;
1453 struct nlattr *nl_band;
1454 int rem_band;
1455
1456 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1457 genlmsg_attrlen(gnlh, 0), NULL);
1458
1459 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1460 return NL_SKIP;
1461
1462 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1463 {
1464 int res = phy_info_band(phy_info, nl_band);
1465 if (res != NL_OK)
1466 return res;
1467 }
1468
1469 return NL_SKIP;
1470 }
1471
1472
1473 static struct hostapd_hw_modes *
wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes * modes,u16 * num_modes)1474 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1475 u16 *num_modes)
1476 {
1477 u16 m;
1478 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1479 int i, mode11g_idx = -1;
1480
1481 /* heuristic to set up modes */
1482 for (m = 0; m < *num_modes; m++) {
1483 if (!modes[m].num_channels)
1484 continue;
1485 if (modes[m].channels[0].freq < 4000) {
1486 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1487 for (i = 0; i < modes[m].num_rates; i++) {
1488 if (modes[m].rates[i] > 200) {
1489 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1490 break;
1491 }
1492 }
1493 } else if (modes[m].channels[0].freq > 50000)
1494 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1495 else
1496 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1497 }
1498
1499 /* If only 802.11g mode is included, use it to construct matching
1500 * 802.11b mode data. */
1501
1502 for (m = 0; m < *num_modes; m++) {
1503 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1504 return modes; /* 802.11b already included */
1505 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1506 mode11g_idx = m;
1507 }
1508
1509 if (mode11g_idx < 0)
1510 return modes; /* 2.4 GHz band not supported at all */
1511
1512 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1513 if (nmodes == NULL)
1514 return modes; /* Could not add 802.11b mode */
1515
1516 mode = &nmodes[*num_modes];
1517 os_memset(mode, 0, sizeof(*mode));
1518 (*num_modes)++;
1519 modes = nmodes;
1520
1521 mode->mode = HOSTAPD_MODE_IEEE80211B;
1522
1523 mode11g = &modes[mode11g_idx];
1524 mode->num_channels = mode11g->num_channels;
1525 mode->channels = os_malloc(mode11g->num_channels *
1526 sizeof(struct hostapd_channel_data));
1527 if (mode->channels == NULL) {
1528 (*num_modes)--;
1529 return modes; /* Could not add 802.11b mode */
1530 }
1531 os_memcpy(mode->channels, mode11g->channels,
1532 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1533
1534 mode->num_rates = 0;
1535 mode->rates = os_malloc(4 * sizeof(int));
1536 if (mode->rates == NULL) {
1537 os_free(mode->channels);
1538 (*num_modes)--;
1539 return modes; /* Could not add 802.11b mode */
1540 }
1541
1542 for (i = 0; i < mode11g->num_rates; i++) {
1543 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1544 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1545 continue;
1546 mode->rates[mode->num_rates] = mode11g->rates[i];
1547 mode->num_rates++;
1548 if (mode->num_rates == 4)
1549 break;
1550 }
1551
1552 if (mode->num_rates == 0) {
1553 os_free(mode->channels);
1554 os_free(mode->rates);
1555 (*num_modes)--;
1556 return modes; /* No 802.11b rates */
1557 }
1558
1559 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1560 "information");
1561
1562 return modes;
1563 }
1564
1565
nl80211_set_ht40_mode(struct hostapd_hw_modes * mode,int start,int end)1566 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1567 int end)
1568 {
1569 int c;
1570
1571 for (c = 0; c < mode->num_channels; c++) {
1572 struct hostapd_channel_data *chan = &mode->channels[c];
1573 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1574 chan->flag |= HOSTAPD_CHAN_HT40;
1575 }
1576 }
1577
1578
nl80211_set_ht40_mode_sec(struct hostapd_hw_modes * mode,int start,int end)1579 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1580 int end)
1581 {
1582 int c;
1583
1584 for (c = 0; c < mode->num_channels; c++) {
1585 struct hostapd_channel_data *chan = &mode->channels[c];
1586 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1587 continue;
1588 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1589 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1590 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1591 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1592 }
1593 }
1594
1595
nl80211_reg_rule_max_eirp(u32 start,u32 end,u32 max_eirp,struct phy_info_arg * results)1596 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1597 struct phy_info_arg *results)
1598 {
1599 u16 m;
1600
1601 for (m = 0; m < *results->num_modes; m++) {
1602 int c;
1603 struct hostapd_hw_modes *mode = &results->modes[m];
1604
1605 for (c = 0; c < mode->num_channels; c++) {
1606 struct hostapd_channel_data *chan = &mode->channels[c];
1607 if ((u32) chan->freq - 10 >= start &&
1608 (u32) chan->freq + 10 <= end)
1609 chan->max_tx_power = max_eirp;
1610 }
1611 }
1612 }
1613
1614
nl80211_reg_rule_ht40(u32 start,u32 end,struct phy_info_arg * results)1615 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1616 struct phy_info_arg *results)
1617 {
1618 u16 m;
1619
1620 for (m = 0; m < *results->num_modes; m++) {
1621 if (!(results->modes[m].ht_capab &
1622 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1623 continue;
1624 nl80211_set_ht40_mode(&results->modes[m], start, end);
1625 }
1626 }
1627
1628
nl80211_reg_rule_sec(struct nlattr * tb[],struct phy_info_arg * results)1629 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1630 struct phy_info_arg *results)
1631 {
1632 u32 start, end, max_bw;
1633 u16 m;
1634
1635 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1636 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1637 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1638 return;
1639
1640 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1641 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1642 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1643
1644 if (max_bw < 20)
1645 return;
1646
1647 for (m = 0; m < *results->num_modes; m++) {
1648 if (!(results->modes[m].ht_capab &
1649 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1650 continue;
1651 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1652 }
1653 }
1654
1655
nl80211_set_vht_mode(struct hostapd_hw_modes * mode,int start,int end,int max_bw)1656 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1657 int end, int max_bw)
1658 {
1659 int c;
1660
1661 for (c = 0; c < mode->num_channels; c++) {
1662 struct hostapd_channel_data *chan = &mode->channels[c];
1663 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1664 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1665
1666 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1667 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1668
1669 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1670 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1671
1672 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1673 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1674
1675 if (max_bw >= 160) {
1676 if (chan->freq - 10 >= start && chan->freq + 150 <= end)
1677 chan->flag |= HOSTAPD_CHAN_VHT_10_150;
1678
1679 if (chan->freq - 30 >= start && chan->freq + 130 <= end)
1680 chan->flag |= HOSTAPD_CHAN_VHT_30_130;
1681
1682 if (chan->freq - 50 >= start && chan->freq + 110 <= end)
1683 chan->flag |= HOSTAPD_CHAN_VHT_50_110;
1684
1685 if (chan->freq - 70 >= start && chan->freq + 90 <= end)
1686 chan->flag |= HOSTAPD_CHAN_VHT_70_90;
1687
1688 if (chan->freq - 90 >= start && chan->freq + 70 <= end)
1689 chan->flag |= HOSTAPD_CHAN_VHT_90_70;
1690
1691 if (chan->freq - 110 >= start && chan->freq + 50 <= end)
1692 chan->flag |= HOSTAPD_CHAN_VHT_110_50;
1693
1694 if (chan->freq - 130 >= start && chan->freq + 30 <= end)
1695 chan->flag |= HOSTAPD_CHAN_VHT_130_30;
1696
1697 if (chan->freq - 150 >= start && chan->freq + 10 <= end)
1698 chan->flag |= HOSTAPD_CHAN_VHT_150_10;
1699 }
1700 }
1701 }
1702
1703
nl80211_reg_rule_vht(struct nlattr * tb[],struct phy_info_arg * results)1704 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1705 struct phy_info_arg *results)
1706 {
1707 u32 start, end, max_bw;
1708 u16 m;
1709
1710 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1711 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1712 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1713 return;
1714
1715 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1716 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1717 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1718
1719 if (max_bw < 80)
1720 return;
1721
1722 for (m = 0; m < *results->num_modes; m++) {
1723 if (!(results->modes[m].ht_capab &
1724 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1725 continue;
1726 /* TODO: use a real VHT support indication */
1727 if (!results->modes[m].vht_capab)
1728 continue;
1729
1730 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw);
1731 }
1732 }
1733
1734
dfs_domain_name(enum nl80211_dfs_regions region)1735 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1736 {
1737 switch (region) {
1738 case NL80211_DFS_UNSET:
1739 return "DFS-UNSET";
1740 case NL80211_DFS_FCC:
1741 return "DFS-FCC";
1742 case NL80211_DFS_ETSI:
1743 return "DFS-ETSI";
1744 case NL80211_DFS_JP:
1745 return "DFS-JP";
1746 default:
1747 return "DFS-invalid";
1748 }
1749 }
1750
1751
nl80211_get_reg(struct nl_msg * msg,void * arg)1752 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1753 {
1754 struct phy_info_arg *results = arg;
1755 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1756 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1757 struct nlattr *nl_rule;
1758 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1759 int rem_rule;
1760 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1761 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1762 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1763 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1764 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1765 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1766 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1767 };
1768
1769 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1770 genlmsg_attrlen(gnlh, 0), NULL);
1771 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1772 !tb_msg[NL80211_ATTR_REG_RULES]) {
1773 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1774 "available");
1775 return NL_SKIP;
1776 }
1777
1778 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1779 enum nl80211_dfs_regions dfs_domain;
1780 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1781 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1782 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1783 dfs_domain_name(dfs_domain));
1784 } else {
1785 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1786 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1787 }
1788
1789 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1790 {
1791 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1792 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1793 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1794 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1795 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1796 continue;
1797 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1798 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1799 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1800 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1801 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1802 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1803 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1804 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1805
1806 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1807 start, end, max_bw, max_eirp,
1808 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1809 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1810 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1811 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1812 "",
1813 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1814 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1815 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1816 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1817 if (max_bw >= 40)
1818 nl80211_reg_rule_ht40(start, end, results);
1819 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1820 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1821 results);
1822 }
1823
1824 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1825 {
1826 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1827 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1828 nl80211_reg_rule_sec(tb_rule, results);
1829 }
1830
1831 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1832 {
1833 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1834 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1835 nl80211_reg_rule_vht(tb_rule, results);
1836 }
1837
1838 return NL_SKIP;
1839 }
1840
1841
nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data * drv,struct phy_info_arg * results)1842 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1843 struct phy_info_arg *results)
1844 {
1845 struct nl_msg *msg;
1846
1847 msg = nlmsg_alloc();
1848 if (!msg)
1849 return -ENOMEM;
1850
1851 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1852 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1853 }
1854
1855
1856 struct hostapd_hw_modes *
nl80211_get_hw_feature_data(void * priv,u16 * num_modes,u16 * flags)1857 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1858 {
1859 u32 feat;
1860 struct i802_bss *bss = priv;
1861 struct wpa_driver_nl80211_data *drv = bss->drv;
1862 int nl_flags = 0;
1863 struct nl_msg *msg;
1864 struct phy_info_arg result = {
1865 .num_modes = num_modes,
1866 .modes = NULL,
1867 .last_mode = -1,
1868 .failed = 0,
1869 };
1870
1871 *num_modes = 0;
1872 *flags = 0;
1873
1874 feat = get_nl80211_protocol_features(drv);
1875 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
1876 nl_flags = NLM_F_DUMP;
1877 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1878 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
1879 nlmsg_free(msg);
1880 return NULL;
1881 }
1882
1883 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1884 nl80211_set_regulatory_flags(drv, &result);
1885 if (result.failed) {
1886 int i;
1887
1888 for (i = 0; result.modes && i < *num_modes; i++) {
1889 os_free(result.modes[i].channels);
1890 os_free(result.modes[i].rates);
1891 }
1892 os_free(result.modes);
1893 *num_modes = 0;
1894 return NULL;
1895 }
1896 return wpa_driver_nl80211_postprocess_modes(result.modes,
1897 num_modes);
1898 }
1899
1900 return NULL;
1901 }
1902