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 if (ext_feature_isset(ext_features, len,
402 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD))
403 capa->flags |= WPA_DRIVER_FLAGS_FILS_SK_OFFLOAD;
404
405 if (ext_feature_isset(ext_features, len,
406 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
407 capa->flags |= WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK;
408 if (ext_feature_isset(ext_features, len,
409 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
410 capa->flags |= WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X;
411
412 if (ext_feature_isset(ext_features, len,
413 NL80211_EXT_FEATURE_MFP_OPTIONAL))
414 capa->flags |= WPA_DRIVER_FLAGS_MFP_OPTIONAL;
415
416 if (ext_feature_isset(ext_features, len,
417 NL80211_EXT_FEATURE_DFS_OFFLOAD))
418 capa->flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
419
420 #ifdef CONFIG_MBO
421 if (ext_feature_isset(ext_features, len,
422 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME) &&
423 ext_feature_isset(ext_features, len,
424 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP) &&
425 ext_feature_isset(ext_features, len,
426 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE) &&
427 ext_feature_isset(
428 ext_features, len,
429 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
430 capa->flags |= WPA_DRIVER_FLAGS_OCE_STA;
431 #endif /* CONFIG_MBO */
432
433 if (ext_feature_isset(ext_features, len,
434 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER))
435 capa->flags |= WPA_DRIVER_FLAGS_FTM_RESPONDER;
436 }
437
438
wiphy_info_feature_flags(struct wiphy_info_data * info,struct nlattr * tb)439 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
440 struct nlattr *tb)
441 {
442 u32 flags;
443 struct wpa_driver_capa *capa = info->capa;
444
445 if (tb == NULL)
446 return;
447
448 flags = nla_get_u32(tb);
449
450 if (flags & NL80211_FEATURE_SK_TX_STATUS)
451 info->data_tx_status = 1;
452
453 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
454 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
455
456 if (flags & NL80211_FEATURE_SAE)
457 capa->flags |= WPA_DRIVER_FLAGS_SAE;
458
459 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
460 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
461
462 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
463 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
464
465 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) {
466 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch");
467 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH;
468 }
469
470 if (flags & NL80211_FEATURE_P2P_GO_CTWIN)
471 info->p2p_go_ctwindow_supported = 1;
472
473 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
474 info->have_low_prio_scan = 1;
475
476 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)
477 info->mac_addr_rand_scan_supported = 1;
478
479 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR)
480 info->mac_addr_rand_sched_scan_supported = 1;
481
482 if (flags & NL80211_FEATURE_STATIC_SMPS)
483 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
484
485 if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
486 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
487
488 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
489 info->wmm_ac_supported = 1;
490
491 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES)
492 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES;
493
494 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES)
495 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES;
496
497 if (flags & NL80211_FEATURE_QUIET)
498 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET;
499
500 if (flags & NL80211_FEATURE_TX_POWER_INSERTION)
501 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION;
502
503 if (flags & NL80211_FEATURE_HT_IBSS)
504 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS;
505
506 if (flags & NL80211_FEATURE_FULL_AP_CLIENT_STATE)
507 capa->flags |= WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE;
508 }
509
510
wiphy_info_probe_resp_offload(struct wpa_driver_capa * capa,struct nlattr * tb)511 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
512 struct nlattr *tb)
513 {
514 u32 protocols;
515
516 if (tb == NULL)
517 return;
518
519 protocols = nla_get_u32(tb);
520 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
521 "mode");
522 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
523 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
524 }
525
526
wiphy_info_wowlan_triggers(struct wpa_driver_capa * capa,struct nlattr * tb)527 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
528 struct nlattr *tb)
529 {
530 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
531
532 if (tb == NULL)
533 return;
534
535 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
536 tb, NULL))
537 return;
538
539 if (triggers[NL80211_WOWLAN_TRIG_ANY])
540 capa->wowlan_triggers.any = 1;
541 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
542 capa->wowlan_triggers.disconnect = 1;
543 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
544 capa->wowlan_triggers.magic_pkt = 1;
545 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
546 capa->wowlan_triggers.gtk_rekey_failure = 1;
547 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
548 capa->wowlan_triggers.eap_identity_req = 1;
549 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
550 capa->wowlan_triggers.four_way_handshake = 1;
551 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
552 capa->wowlan_triggers.rfkill_release = 1;
553 }
554
555
wiphy_info_extended_capab(struct wpa_driver_nl80211_data * drv,struct nlattr * tb)556 static void wiphy_info_extended_capab(struct wpa_driver_nl80211_data *drv,
557 struct nlattr *tb)
558 {
559 int rem = 0, i;
560 struct nlattr *tb1[NL80211_ATTR_MAX + 1], *attr;
561
562 if (!tb || drv->num_iface_ext_capa == NL80211_IFTYPE_MAX)
563 return;
564
565 nla_for_each_nested(attr, tb, rem) {
566 unsigned int len;
567 struct drv_nl80211_ext_capa *capa;
568
569 nla_parse(tb1, NL80211_ATTR_MAX, nla_data(attr),
570 nla_len(attr), NULL);
571
572 if (!tb1[NL80211_ATTR_IFTYPE] ||
573 !tb1[NL80211_ATTR_EXT_CAPA] ||
574 !tb1[NL80211_ATTR_EXT_CAPA_MASK])
575 continue;
576
577 capa = &drv->iface_ext_capa[drv->num_iface_ext_capa];
578 capa->iftype = nla_get_u32(tb1[NL80211_ATTR_IFTYPE]);
579 wpa_printf(MSG_DEBUG,
580 "nl80211: Driver-advertised extended capabilities for interface type %s",
581 nl80211_iftype_str(capa->iftype));
582
583 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA]);
584 capa->ext_capa = os_memdup(nla_data(tb1[NL80211_ATTR_EXT_CAPA]),
585 len);
586 if (!capa->ext_capa)
587 goto err;
588
589 capa->ext_capa_len = len;
590 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities",
591 capa->ext_capa, capa->ext_capa_len);
592
593 len = nla_len(tb1[NL80211_ATTR_EXT_CAPA_MASK]);
594 capa->ext_capa_mask =
595 os_memdup(nla_data(tb1[NL80211_ATTR_EXT_CAPA_MASK]),
596 len);
597 if (!capa->ext_capa_mask)
598 goto err;
599
600 wpa_hexdump(MSG_DEBUG, "nl80211: Extended capabilities mask",
601 capa->ext_capa_mask, capa->ext_capa_len);
602
603 drv->num_iface_ext_capa++;
604 if (drv->num_iface_ext_capa == NL80211_IFTYPE_MAX)
605 break;
606 }
607
608 return;
609
610 err:
611 /* Cleanup allocated memory on error */
612 for (i = 0; i < NL80211_IFTYPE_MAX; i++) {
613 os_free(drv->iface_ext_capa[i].ext_capa);
614 drv->iface_ext_capa[i].ext_capa = NULL;
615 os_free(drv->iface_ext_capa[i].ext_capa_mask);
616 drv->iface_ext_capa[i].ext_capa_mask = NULL;
617 drv->iface_ext_capa[i].ext_capa_len = 0;
618 }
619 drv->num_iface_ext_capa = 0;
620 }
621
622
wiphy_info_handler(struct nl_msg * msg,void * arg)623 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
624 {
625 struct nlattr *tb[NL80211_ATTR_MAX + 1];
626 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
627 struct wiphy_info_data *info = arg;
628 struct wpa_driver_capa *capa = info->capa;
629 struct wpa_driver_nl80211_data *drv = info->drv;
630
631 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
632 genlmsg_attrlen(gnlh, 0), NULL);
633
634 if (tb[NL80211_ATTR_WIPHY])
635 drv->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
636
637 if (tb[NL80211_ATTR_WIPHY_NAME])
638 os_strlcpy(drv->phyname,
639 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
640 sizeof(drv->phyname));
641 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
642 capa->max_scan_ssids =
643 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
644
645 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
646 capa->max_sched_scan_ssids =
647 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
648
649 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS] &&
650 tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL] &&
651 tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]) {
652 capa->max_sched_scan_plans =
653 nla_get_u32(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS]);
654
655 capa->max_sched_scan_plan_interval =
656 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL]);
657
658 capa->max_sched_scan_plan_iterations =
659 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]);
660 }
661
662 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
663 capa->max_match_sets =
664 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
665
666 if (tb[NL80211_ATTR_MAC_ACL_MAX])
667 capa->max_acl_mac_addrs =
668 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
669
670 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
671 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
672 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
673 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
674
675 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
676 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
677 "off-channel TX");
678 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
679 }
680
681 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
682 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
683 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
684 }
685
686 wiphy_info_max_roc(capa,
687 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
688
689 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
690 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
691
692 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
693 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
694
695 if (tb[NL80211_ATTR_DEVICE_AP_SME])
696 info->device_ap_sme = 1;
697
698 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
699 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]);
700 wiphy_info_probe_resp_offload(capa,
701 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
702
703 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
704 drv->extended_capa == NULL) {
705 drv->extended_capa =
706 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
707 if (drv->extended_capa) {
708 os_memcpy(drv->extended_capa,
709 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
710 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
711 drv->extended_capa_len =
712 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
713 wpa_hexdump(MSG_DEBUG,
714 "nl80211: Driver-advertised extended capabilities (default)",
715 drv->extended_capa, drv->extended_capa_len);
716 }
717 drv->extended_capa_mask =
718 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
719 if (drv->extended_capa_mask) {
720 os_memcpy(drv->extended_capa_mask,
721 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]),
722 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
723 wpa_hexdump(MSG_DEBUG,
724 "nl80211: Driver-advertised extended capabilities mask (default)",
725 drv->extended_capa_mask,
726 drv->extended_capa_len);
727 } else {
728 os_free(drv->extended_capa);
729 drv->extended_capa = NULL;
730 drv->extended_capa_len = 0;
731 }
732 }
733
734 wiphy_info_extended_capab(drv, tb[NL80211_ATTR_IFTYPE_EXT_CAPA]);
735
736 if (tb[NL80211_ATTR_VENDOR_DATA]) {
737 struct nlattr *nl;
738 int rem;
739
740 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
741 struct nl80211_vendor_cmd_info *vinfo;
742 if (nla_len(nl) != sizeof(*vinfo)) {
743 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
744 continue;
745 }
746 vinfo = nla_data(nl);
747 if (vinfo->vendor_id == OUI_QCA) {
748 switch (vinfo->subcmd) {
749 case QCA_NL80211_VENDOR_SUBCMD_TEST:
750 drv->vendor_cmd_test_avail = 1;
751 break;
752 #ifdef CONFIG_DRIVER_NL80211_QCA
753 case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
754 drv->roaming_vendor_cmd_avail = 1;
755 break;
756 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
757 drv->dfs_vendor_cmd_avail = 1;
758 break;
759 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
760 drv->get_features_vendor_cmd_avail = 1;
761 break;
762 case QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST:
763 drv->get_pref_freq_list = 1;
764 break;
765 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL:
766 drv->set_prob_oper_freq = 1;
767 break;
768 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
769 drv->capa.flags |=
770 WPA_DRIVER_FLAGS_ACS_OFFLOAD;
771 break;
772 case QCA_NL80211_VENDOR_SUBCMD_SETBAND:
773 drv->setband_vendor_cmd_avail = 1;
774 break;
775 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN:
776 drv->scan_vendor_cmd_avail = 1;
777 break;
778 case QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION:
779 drv->set_wifi_conf_vendor_cmd_avail = 1;
780 break;
781 case QCA_NL80211_VENDOR_SUBCMD_FETCH_BSS_TRANSITION_STATUS:
782 drv->fetch_bss_trans_status = 1;
783 break;
784 case QCA_NL80211_VENDOR_SUBCMD_ROAM:
785 drv->roam_vendor_cmd_avail = 1;
786 break;
787 case QCA_NL80211_VENDOR_SUBCMD_GET_SUPPORTED_AKMS:
788 drv->get_supported_akm_suites_avail = 1;
789 break;
790 #endif /* CONFIG_DRIVER_NL80211_QCA */
791 }
792 }
793
794 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
795 vinfo->vendor_id, vinfo->subcmd);
796 }
797 }
798
799 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
800 struct nlattr *nl;
801 int rem;
802
803 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
804 struct nl80211_vendor_cmd_info *vinfo;
805 if (nla_len(nl) != sizeof(*vinfo)) {
806 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
807 continue;
808 }
809 vinfo = nla_data(nl);
810 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
811 vinfo->vendor_id, vinfo->subcmd);
812 }
813 }
814
815 wiphy_info_wowlan_triggers(capa,
816 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
817
818 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
819 capa->max_stations =
820 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
821
822 if (tb[NL80211_ATTR_MAX_CSA_COUNTERS])
823 capa->max_csa_counters =
824 nla_get_u8(tb[NL80211_ATTR_MAX_CSA_COUNTERS]);
825
826 if (tb[NL80211_ATTR_WIPHY_SELF_MANAGED_REG])
827 capa->flags |= WPA_DRIVER_FLAGS_SELF_MANAGED_REGULATORY;
828
829 return NL_SKIP;
830 }
831
832
wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data * drv,struct wiphy_info_data * info)833 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
834 struct wiphy_info_data *info)
835 {
836 u32 feat;
837 struct nl_msg *msg;
838 int flags = 0;
839
840 os_memset(info, 0, sizeof(*info));
841 info->capa = &drv->capa;
842 info->drv = drv;
843
844 feat = get_nl80211_protocol_features(drv);
845 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
846 flags = NLM_F_DUMP;
847 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
848 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
849 nlmsg_free(msg);
850 return -1;
851 }
852
853 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
854 return -1;
855
856 if (info->auth_supported)
857 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
858 else if (!info->connect_supported) {
859 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
860 "authentication/association or connect commands");
861 info->error = 1;
862 }
863
864 if (info->p2p_go_supported && info->p2p_client_supported)
865 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
866 if (info->p2p_concurrent) {
867 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
868 "interface (driver advertised support)");
869 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
870 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
871 }
872 if (info->num_multichan_concurrent > 1) {
873 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
874 "concurrent (driver advertised support)");
875 drv->capa.num_multichan_concurrent =
876 info->num_multichan_concurrent;
877 }
878 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
879 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
880
881 /* default to 5000 since early versions of mac80211 don't set it */
882 if (!drv->capa.max_remain_on_chan)
883 drv->capa.max_remain_on_chan = 5000;
884
885 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
886
887 drv->capa.mac_addr_rand_sched_scan_supported =
888 info->mac_addr_rand_sched_scan_supported;
889 drv->capa.mac_addr_rand_scan_supported =
890 info->mac_addr_rand_scan_supported;
891
892 if (info->channel_switch_supported) {
893 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
894 if (!drv->capa.max_csa_counters)
895 drv->capa.max_csa_counters = 1;
896 }
897
898 if (!drv->capa.max_sched_scan_plans) {
899 drv->capa.max_sched_scan_plans = 1;
900 drv->capa.max_sched_scan_plan_interval = UINT32_MAX;
901 drv->capa.max_sched_scan_plan_iterations = 0;
902 }
903
904 return 0;
905 }
906
907
908 #ifdef CONFIG_DRIVER_NL80211_QCA
909
dfs_info_handler(struct nl_msg * msg,void * arg)910 static int dfs_info_handler(struct nl_msg *msg, void *arg)
911 {
912 struct nlattr *tb[NL80211_ATTR_MAX + 1];
913 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
914 int *dfs_capability_ptr = arg;
915
916 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
917 genlmsg_attrlen(gnlh, 0), NULL);
918
919 if (tb[NL80211_ATTR_VENDOR_DATA]) {
920 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
921 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
922
923 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
924 nla_data(nl_vend), nla_len(nl_vend), NULL);
925
926 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
927 u32 val;
928 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
929 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
930 val);
931 *dfs_capability_ptr = val;
932 }
933 }
934
935 return NL_SKIP;
936 }
937
938
qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data * drv)939 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
940 {
941 struct nl_msg *msg;
942 int dfs_capability = 0;
943 int ret;
944
945 if (!drv->dfs_vendor_cmd_avail)
946 return;
947
948 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
949 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
950 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
951 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
952 nlmsg_free(msg);
953 return;
954 }
955
956 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
957 if (!ret && dfs_capability)
958 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
959 }
960
961
get_akm_suites_info(struct nlattr * tb)962 static unsigned int get_akm_suites_info(struct nlattr *tb)
963 {
964 int i, num;
965 unsigned int key_mgmt = 0;
966 u32 *akms;
967
968 if (!tb)
969 return 0;
970
971 num = nla_len(tb) / sizeof(u32);
972 akms = nla_data(tb);
973 for (i = 0; i < num; i++) {
974 u32 a = akms[i];
975
976 wpa_printf(MSG_DEBUG,
977 "nl80211: Supported AKM %02x-%02x-%02x:%u",
978 a >> 24, (a >> 16) & 0xff,
979 (a >> 8) & 0xff, a & 0xff);
980 switch (a) {
981 case RSN_AUTH_KEY_MGMT_UNSPEC_802_1X:
982 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA |
983 WPA_DRIVER_CAPA_KEY_MGMT_WPA2;
984 break;
985 case RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X:
986 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
987 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
988 break;
989 case RSN_AUTH_KEY_MGMT_FT_802_1X:
990 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT;
991 break;
992 case RSN_AUTH_KEY_MGMT_FT_PSK:
993 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
994 break;
995 case RSN_AUTH_KEY_MGMT_802_1X_SUITE_B:
996 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B;
997 break;
998 case RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192:
999 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192;
1000 break;
1001 case RSN_AUTH_KEY_MGMT_OWE:
1002 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_OWE;
1003 break;
1004 case RSN_AUTH_KEY_MGMT_DPP:
1005 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_DPP;
1006 break;
1007 case RSN_AUTH_KEY_MGMT_FILS_SHA256:
1008 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA256;
1009 break;
1010 case RSN_AUTH_KEY_MGMT_FILS_SHA384:
1011 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA384;
1012 break;
1013 case RSN_AUTH_KEY_MGMT_FT_FILS_SHA256:
1014 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT_FILS_SHA256;
1015 break;
1016 case RSN_AUTH_KEY_MGMT_FT_FILS_SHA384:
1017 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT_FILS_SHA384;
1018 break;
1019 case RSN_AUTH_KEY_MGMT_SAE:
1020 key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_SAE;
1021 break;
1022 }
1023 }
1024
1025 return key_mgmt;
1026 }
1027
1028
get_akm_suites_handler(struct nl_msg * msg,void * arg)1029 static int get_akm_suites_handler(struct nl_msg *msg, void *arg)
1030 {
1031 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1032 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1033 unsigned int *key_mgmt = arg;
1034
1035 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1036 genlmsg_attrlen(gnlh, 0), NULL);
1037
1038 if (tb[NL80211_ATTR_VENDOR_DATA]) {
1039 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
1040 struct nlattr *tb_data[NL80211_ATTR_MAX + 1];
1041
1042 nla_parse(tb_data, NL80211_ATTR_MAX,
1043 nla_data(nl_vend), nla_len(nl_vend), NULL);
1044
1045 *key_mgmt =
1046 get_akm_suites_info(tb_data[NL80211_ATTR_AKM_SUITES]);
1047 }
1048
1049 return NL_SKIP;
1050 }
1051
1052
qca_nl80211_get_akm_suites(struct wpa_driver_nl80211_data * drv)1053 static int qca_nl80211_get_akm_suites(struct wpa_driver_nl80211_data *drv)
1054 {
1055 struct nl_msg *msg;
1056 unsigned int key_mgmt = 0;
1057 int ret;
1058
1059 if (!drv->get_supported_akm_suites_avail)
1060 return -1;
1061
1062 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
1063 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
1064 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
1065 QCA_NL80211_VENDOR_SUBCMD_GET_SUPPORTED_AKMS)) {
1066 nlmsg_free(msg);
1067 return -1;
1068 }
1069
1070 ret = send_and_recv_msgs(drv, msg, get_akm_suites_handler, &key_mgmt);
1071 if (!ret) {
1072 wpa_printf(MSG_DEBUG,
1073 "nl80211: Replace capa.key_mgmt based on driver advertised capabilities: 0x%x",
1074 key_mgmt);
1075 drv->capa.key_mgmt = key_mgmt;
1076 }
1077
1078 return ret;
1079 }
1080
1081
1082 struct features_info {
1083 u8 *flags;
1084 size_t flags_len;
1085 struct wpa_driver_capa *capa;
1086 };
1087
1088
features_info_handler(struct nl_msg * msg,void * arg)1089 static int features_info_handler(struct nl_msg *msg, void *arg)
1090 {
1091 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1092 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1093 struct features_info *info = arg;
1094 struct nlattr *nl_vend, *attr;
1095
1096 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1097 genlmsg_attrlen(gnlh, 0), NULL);
1098
1099 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
1100 if (nl_vend) {
1101 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
1102
1103 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
1104 nla_data(nl_vend), nla_len(nl_vend), NULL);
1105
1106 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS];
1107 if (attr) {
1108 int len = nla_len(attr);
1109 info->flags = os_malloc(len);
1110 if (info->flags != NULL) {
1111 os_memcpy(info->flags, nla_data(attr), len);
1112 info->flags_len = len;
1113 }
1114 }
1115 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA];
1116 if (attr)
1117 info->capa->conc_capab = nla_get_u32(attr);
1118
1119 attr = tb_vendor[
1120 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND];
1121 if (attr)
1122 info->capa->max_conc_chan_2_4 = nla_get_u32(attr);
1123
1124 attr = tb_vendor[
1125 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND];
1126 if (attr)
1127 info->capa->max_conc_chan_5_0 = nla_get_u32(attr);
1128 }
1129
1130 return NL_SKIP;
1131 }
1132
1133
check_feature(enum qca_wlan_vendor_features feature,struct features_info * info)1134 static int check_feature(enum qca_wlan_vendor_features feature,
1135 struct features_info *info)
1136 {
1137 size_t idx = feature / 8;
1138
1139 return (idx < info->flags_len) &&
1140 (info->flags[idx] & BIT(feature % 8));
1141 }
1142
1143
qca_nl80211_get_features(struct wpa_driver_nl80211_data * drv)1144 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
1145 {
1146 struct nl_msg *msg;
1147 struct features_info info;
1148 int ret;
1149
1150 if (!drv->get_features_vendor_cmd_avail)
1151 return;
1152
1153 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
1154 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
1155 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
1156 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
1157 nlmsg_free(msg);
1158 return;
1159 }
1160
1161 os_memset(&info, 0, sizeof(info));
1162 info.capa = &drv->capa;
1163 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
1164 if (ret || !info.flags)
1165 return;
1166
1167 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
1168 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
1169
1170 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
1171 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
1172
1173 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS,
1174 &info))
1175 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
1176 if (check_feature(QCA_WLAN_VENDOR_FEATURE_P2P_LISTEN_OFFLOAD, &info))
1177 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD;
1178 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OCE_STA, &info))
1179 drv->capa.flags |= WPA_DRIVER_FLAGS_OCE_STA;
1180 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OCE_AP, &info))
1181 drv->capa.flags |= WPA_DRIVER_FLAGS_OCE_AP;
1182 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OCE_STA_CFON, &info))
1183 drv->capa.flags |= WPA_DRIVER_FLAGS_OCE_STA_CFON;
1184 os_free(info.flags);
1185 }
1186
1187 #endif /* CONFIG_DRIVER_NL80211_QCA */
1188
1189
wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data * drv)1190 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
1191 {
1192 struct wiphy_info_data info;
1193 if (wpa_driver_nl80211_get_info(drv, &info))
1194 return -1;
1195
1196 if (info.error)
1197 return -1;
1198
1199 drv->has_capability = 1;
1200 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1201 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1202 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1203 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK |
1204 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B |
1205 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192 |
1206 WPA_DRIVER_CAPA_KEY_MGMT_OWE |
1207 WPA_DRIVER_CAPA_KEY_MGMT_DPP;
1208
1209 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME)
1210 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA256 |
1211 WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA384 |
1212 WPA_DRIVER_CAPA_KEY_MGMT_FT_FILS_SHA256 |
1213 WPA_DRIVER_CAPA_KEY_MGMT_FT_FILS_SHA384 |
1214 WPA_DRIVER_CAPA_KEY_MGMT_SAE;
1215 else if (drv->capa.flags & WPA_DRIVER_FLAGS_FILS_SK_OFFLOAD)
1216 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA256 |
1217 WPA_DRIVER_CAPA_KEY_MGMT_FILS_SHA384;
1218
1219 #ifdef CONFIG_DRIVER_NL80211_QCA
1220 /* Override drv->capa.key_mgmt based on driver advertised capability
1221 * constraints, if available. */
1222 qca_nl80211_get_akm_suites(drv);
1223 #endif /* CONFIG_DRIVER_NL80211_QCA */
1224
1225 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1226 WPA_DRIVER_AUTH_SHARED |
1227 WPA_DRIVER_AUTH_LEAP;
1228
1229 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
1230 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1231 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
1232
1233 /*
1234 * As all cfg80211 drivers must support cases where the AP interface is
1235 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
1236 * case that the user space daemon has crashed, they must be able to
1237 * cleanup all stations and key entries in the AP tear down flow. Thus,
1238 * this flag can/should always be set for cfg80211 drivers.
1239 */
1240 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
1241
1242 if (!info.device_ap_sme) {
1243 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
1244
1245 /*
1246 * No AP SME is currently assumed to also indicate no AP MLME
1247 * in the driver/firmware.
1248 */
1249 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
1250 }
1251
1252 drv->device_ap_sme = info.device_ap_sme;
1253 drv->poll_command_supported = info.poll_command_supported;
1254 drv->data_tx_status = info.data_tx_status;
1255 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported;
1256 if (info.set_qos_map_supported)
1257 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
1258 drv->have_low_prio_scan = info.have_low_prio_scan;
1259
1260 /*
1261 * If poll command and tx status are supported, mac80211 is new enough
1262 * to have everything we need to not need monitor interfaces.
1263 */
1264 drv->use_monitor = !info.device_ap_sme &&
1265 (!info.poll_command_supported || !info.data_tx_status);
1266
1267 /*
1268 * If we aren't going to use monitor interfaces, but the
1269 * driver doesn't support data TX status, we won't get TX
1270 * status for EAPOL frames.
1271 */
1272 if (!drv->use_monitor && !info.data_tx_status)
1273 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
1274
1275 #ifdef CONFIG_DRIVER_NL80211_QCA
1276 if (!(info.capa->flags & WPA_DRIVER_FLAGS_DFS_OFFLOAD))
1277 qca_nl80211_check_dfs_capa(drv);
1278 qca_nl80211_get_features(drv);
1279
1280 /*
1281 * To enable offchannel simultaneous support in wpa_supplicant, the
1282 * underlying driver needs to support the same along with offchannel TX.
1283 * Offchannel TX support is needed since remain_on_channel and
1284 * action_tx use some common data structures and hence cannot be
1285 * scheduled simultaneously.
1286 */
1287 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
1288 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
1289 #endif /* CONFIG_DRIVER_NL80211_QCA */
1290
1291 return 0;
1292 }
1293
1294
1295 struct phy_info_arg {
1296 u16 *num_modes;
1297 struct hostapd_hw_modes *modes;
1298 int last_mode, last_chan_idx;
1299 int failed;
1300 u8 dfs_domain;
1301 };
1302
phy_info_ht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * ampdu_factor,struct nlattr * ampdu_density,struct nlattr * mcs_set)1303 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
1304 struct nlattr *ampdu_factor,
1305 struct nlattr *ampdu_density,
1306 struct nlattr *mcs_set)
1307 {
1308 if (capa)
1309 mode->ht_capab = nla_get_u16(capa);
1310
1311 if (ampdu_factor)
1312 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
1313
1314 if (ampdu_density)
1315 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
1316
1317 if (mcs_set && nla_len(mcs_set) >= 16) {
1318 u8 *mcs;
1319 mcs = nla_data(mcs_set);
1320 os_memcpy(mode->mcs_set, mcs, 16);
1321 }
1322 }
1323
1324
phy_info_vht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * mcs_set)1325 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
1326 struct nlattr *capa,
1327 struct nlattr *mcs_set)
1328 {
1329 if (capa)
1330 mode->vht_capab = nla_get_u32(capa);
1331
1332 if (mcs_set && nla_len(mcs_set) >= 8) {
1333 u8 *mcs;
1334 mcs = nla_data(mcs_set);
1335 os_memcpy(mode->vht_mcs_set, mcs, 8);
1336 }
1337 }
1338
1339
phy_info_freq(struct hostapd_hw_modes * mode,struct hostapd_channel_data * chan,struct nlattr * tb_freq[])1340 static void phy_info_freq(struct hostapd_hw_modes *mode,
1341 struct hostapd_channel_data *chan,
1342 struct nlattr *tb_freq[])
1343 {
1344 u8 channel;
1345 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1346 chan->flag = 0;
1347 chan->allowed_bw = ~0;
1348 chan->dfs_cac_ms = 0;
1349 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
1350 chan->chan = channel;
1351
1352 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1353 chan->flag |= HOSTAPD_CHAN_DISABLED;
1354 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
1355 chan->flag |= HOSTAPD_CHAN_NO_IR;
1356 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1357 chan->flag |= HOSTAPD_CHAN_RADAR;
1358 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
1359 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
1360 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
1361 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
1362
1363 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_10MHZ])
1364 chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_10;
1365 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_20MHZ])
1366 chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_20;
1367 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_HT40_PLUS])
1368 chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_40P;
1369 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_HT40_MINUS])
1370 chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_40M;
1371 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_80MHZ])
1372 chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_80;
1373 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_160MHZ])
1374 chan->allowed_bw &= ~HOSTAPD_CHAN_WIDTH_160;
1375
1376 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
1377 enum nl80211_dfs_state state =
1378 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
1379
1380 switch (state) {
1381 case NL80211_DFS_USABLE:
1382 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
1383 break;
1384 case NL80211_DFS_AVAILABLE:
1385 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
1386 break;
1387 case NL80211_DFS_UNAVAILABLE:
1388 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
1389 break;
1390 }
1391 }
1392
1393 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
1394 chan->dfs_cac_ms = nla_get_u32(
1395 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
1396 }
1397
1398 chan->wmm_rules_valid = 0;
1399 if (tb_freq[NL80211_FREQUENCY_ATTR_WMM]) {
1400 static struct nla_policy wmm_policy[NL80211_WMMR_MAX + 1] = {
1401 [NL80211_WMMR_CW_MIN] = { .type = NLA_U16 },
1402 [NL80211_WMMR_CW_MAX] = { .type = NLA_U16 },
1403 [NL80211_WMMR_AIFSN] = { .type = NLA_U8 },
1404 [NL80211_WMMR_TXOP] = { .type = NLA_U16 },
1405 };
1406 struct nlattr *nl_wmm;
1407 struct nlattr *tb_wmm[NL80211_WMMR_MAX + 1];
1408 int rem_wmm, ac, count = 0;
1409
1410 nla_for_each_nested(nl_wmm, tb_freq[NL80211_FREQUENCY_ATTR_WMM],
1411 rem_wmm) {
1412 if (nla_parse_nested(tb_wmm, NL80211_WMMR_MAX, nl_wmm,
1413 wmm_policy)) {
1414 wpa_printf(MSG_DEBUG,
1415 "nl80211: Failed to parse WMM rules attribute");
1416 return;
1417 }
1418 if (!tb_wmm[NL80211_WMMR_CW_MIN] ||
1419 !tb_wmm[NL80211_WMMR_CW_MAX] ||
1420 !tb_wmm[NL80211_WMMR_AIFSN] ||
1421 !tb_wmm[NL80211_WMMR_TXOP]) {
1422 wpa_printf(MSG_DEBUG,
1423 "nl80211: Channel is missing WMM rule attribute");
1424 return;
1425 }
1426 ac = nl_wmm->nla_type;
1427 if (ac < 0 || ac >= WMM_AC_NUM) {
1428 wpa_printf(MSG_DEBUG,
1429 "nl80211: Invalid AC value %d", ac);
1430 return;
1431 }
1432
1433 chan->wmm_rules[ac].min_cwmin =
1434 nla_get_u16(tb_wmm[NL80211_WMMR_CW_MIN]);
1435 chan->wmm_rules[ac].min_cwmax =
1436 nla_get_u16(tb_wmm[NL80211_WMMR_CW_MAX]);
1437 chan->wmm_rules[ac].min_aifs =
1438 nla_get_u8(tb_wmm[NL80211_WMMR_AIFSN]);
1439 chan->wmm_rules[ac].max_txop =
1440 nla_get_u16(tb_wmm[NL80211_WMMR_TXOP]) / 32;
1441 count++;
1442 }
1443
1444 /* Set valid flag if all the AC rules are present */
1445 if (count == WMM_AC_NUM)
1446 chan->wmm_rules_valid = 1;
1447 }
1448 }
1449
1450
phy_info_freqs(struct phy_info_arg * phy_info,struct hostapd_hw_modes * mode,struct nlattr * tb)1451 static int phy_info_freqs(struct phy_info_arg *phy_info,
1452 struct hostapd_hw_modes *mode, struct nlattr *tb)
1453 {
1454 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1455 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1456 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1457 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
1458 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1459 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1460 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
1461 [NL80211_FREQUENCY_ATTR_NO_10MHZ] = { .type = NLA_FLAG },
1462 [NL80211_FREQUENCY_ATTR_NO_20MHZ] = { .type = NLA_FLAG },
1463 [NL80211_FREQUENCY_ATTR_NO_HT40_PLUS] = { .type = NLA_FLAG },
1464 [NL80211_FREQUENCY_ATTR_NO_HT40_MINUS] = { .type = NLA_FLAG },
1465 [NL80211_FREQUENCY_ATTR_NO_80MHZ] = { .type = NLA_FLAG },
1466 [NL80211_FREQUENCY_ATTR_NO_160MHZ] = { .type = NLA_FLAG },
1467 };
1468 int new_channels = 0;
1469 struct hostapd_channel_data *channel;
1470 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1471 struct nlattr *nl_freq;
1472 int rem_freq, idx;
1473
1474 if (tb == NULL)
1475 return NL_OK;
1476
1477 nla_for_each_nested(nl_freq, tb, rem_freq) {
1478 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1479 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1480 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1481 continue;
1482 new_channels++;
1483 }
1484
1485 channel = os_realloc_array(mode->channels,
1486 mode->num_channels + new_channels,
1487 sizeof(struct hostapd_channel_data));
1488 if (!channel)
1489 return NL_STOP;
1490
1491 mode->channels = channel;
1492 mode->num_channels += new_channels;
1493
1494 idx = phy_info->last_chan_idx;
1495
1496 nla_for_each_nested(nl_freq, tb, rem_freq) {
1497 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1498 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1499 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1500 continue;
1501 phy_info_freq(mode, &mode->channels[idx], tb_freq);
1502 idx++;
1503 }
1504 phy_info->last_chan_idx = idx;
1505
1506 return NL_OK;
1507 }
1508
1509
phy_info_rates(struct hostapd_hw_modes * mode,struct nlattr * tb)1510 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1511 {
1512 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1513 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1514 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1515 { .type = NLA_FLAG },
1516 };
1517 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1518 struct nlattr *nl_rate;
1519 int rem_rate, idx;
1520
1521 if (tb == NULL)
1522 return NL_OK;
1523
1524 nla_for_each_nested(nl_rate, tb, rem_rate) {
1525 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1526 nla_data(nl_rate), nla_len(nl_rate),
1527 rate_policy);
1528 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1529 continue;
1530 mode->num_rates++;
1531 }
1532
1533 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1534 if (!mode->rates)
1535 return NL_STOP;
1536
1537 idx = 0;
1538
1539 nla_for_each_nested(nl_rate, tb, rem_rate) {
1540 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1541 nla_data(nl_rate), nla_len(nl_rate),
1542 rate_policy);
1543 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1544 continue;
1545 mode->rates[idx] = nla_get_u32(
1546 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1547 idx++;
1548 }
1549
1550 return NL_OK;
1551 }
1552
1553
phy_info_iftype_copy(struct he_capabilities * he_capab,enum ieee80211_op_mode opmode,struct nlattr ** tb,struct nlattr ** tb_flags)1554 static void phy_info_iftype_copy(struct he_capabilities *he_capab,
1555 enum ieee80211_op_mode opmode,
1556 struct nlattr **tb, struct nlattr **tb_flags)
1557 {
1558 enum nl80211_iftype iftype;
1559 size_t len;
1560
1561 switch (opmode) {
1562 case IEEE80211_MODE_INFRA:
1563 iftype = NL80211_IFTYPE_STATION;
1564 break;
1565 case IEEE80211_MODE_IBSS:
1566 iftype = NL80211_IFTYPE_ADHOC;
1567 break;
1568 case IEEE80211_MODE_AP:
1569 iftype = NL80211_IFTYPE_AP;
1570 break;
1571 case IEEE80211_MODE_MESH:
1572 iftype = NL80211_IFTYPE_MESH_POINT;
1573 break;
1574 default:
1575 return;
1576 }
1577
1578 if (!nla_get_flag(tb_flags[iftype]))
1579 return;
1580
1581 he_capab->he_supported = 1;
1582
1583 if (tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY]) {
1584 len = nla_len(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY]);
1585
1586 if (len > sizeof(he_capab->phy_cap))
1587 len = sizeof(he_capab->phy_cap);
1588 os_memcpy(he_capab->phy_cap,
1589 nla_data(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY]),
1590 len);
1591 }
1592
1593 if (tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC]) {
1594 len = nla_len(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC]);
1595
1596 if (len > sizeof(he_capab->mac_cap))
1597 len = sizeof(he_capab->mac_cap);
1598 os_memcpy(he_capab->mac_cap,
1599 nla_data(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC]),
1600 len);
1601 }
1602
1603 if (tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET]) {
1604 len = nla_len(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET]);
1605
1606 if (len > sizeof(he_capab->mcs))
1607 len = sizeof(he_capab->mcs);
1608 os_memcpy(he_capab->mcs,
1609 nla_data(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET]),
1610 len);
1611 }
1612
1613 if (tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE]) {
1614 len = nla_len(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE]);
1615
1616 if (len > sizeof(he_capab->ppet))
1617 len = sizeof(he_capab->ppet);
1618 os_memcpy(&he_capab->ppet,
1619 nla_data(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE]),
1620 len);
1621 }
1622 }
1623
1624
phy_info_iftype(struct hostapd_hw_modes * mode,struct nlattr * nl_iftype)1625 static int phy_info_iftype(struct hostapd_hw_modes *mode,
1626 struct nlattr *nl_iftype)
1627 {
1628 struct nlattr *tb[NL80211_BAND_IFTYPE_ATTR_MAX + 1];
1629 struct nlattr *tb_flags[NL80211_IFTYPE_MAX + 1];
1630 unsigned int i;
1631
1632 nla_parse(tb, NL80211_BAND_IFTYPE_ATTR_MAX,
1633 nla_data(nl_iftype), nla_len(nl_iftype), NULL);
1634
1635 if (!tb[NL80211_BAND_IFTYPE_ATTR_IFTYPES])
1636 return NL_STOP;
1637
1638 if (nla_parse_nested(tb_flags, NL80211_IFTYPE_MAX,
1639 tb[NL80211_BAND_IFTYPE_ATTR_IFTYPES], NULL))
1640 return NL_STOP;
1641
1642 for (i = 0; i < IEEE80211_MODE_NUM; i++)
1643 phy_info_iftype_copy(&mode->he_capab[i], i, tb, tb_flags);
1644
1645 return NL_OK;
1646 }
1647
1648
phy_info_band(struct phy_info_arg * phy_info,struct nlattr * nl_band)1649 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1650 {
1651 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1652 struct hostapd_hw_modes *mode;
1653 int ret;
1654
1655 if (phy_info->last_mode != nl_band->nla_type) {
1656 mode = os_realloc_array(phy_info->modes,
1657 *phy_info->num_modes + 1,
1658 sizeof(*mode));
1659 if (!mode) {
1660 phy_info->failed = 1;
1661 return NL_STOP;
1662 }
1663 phy_info->modes = mode;
1664
1665 mode = &phy_info->modes[*(phy_info->num_modes)];
1666 os_memset(mode, 0, sizeof(*mode));
1667 mode->mode = NUM_HOSTAPD_MODES;
1668 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1669 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1670
1671 /*
1672 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1673 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1674 * possible streams as unsupported. This will be overridden if
1675 * driver advertises VHT support.
1676 */
1677 mode->vht_mcs_set[0] = 0xff;
1678 mode->vht_mcs_set[1] = 0xff;
1679 mode->vht_mcs_set[4] = 0xff;
1680 mode->vht_mcs_set[5] = 0xff;
1681
1682 *(phy_info->num_modes) += 1;
1683 phy_info->last_mode = nl_band->nla_type;
1684 phy_info->last_chan_idx = 0;
1685 } else
1686 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1687
1688 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1689 nla_len(nl_band), NULL);
1690
1691 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1692 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1693 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1694 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1695 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1696 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1697 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1698 if (ret == NL_OK)
1699 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1700 if (ret != NL_OK) {
1701 phy_info->failed = 1;
1702 return ret;
1703 }
1704
1705 if (tb_band[NL80211_BAND_ATTR_IFTYPE_DATA]) {
1706 struct nlattr *nl_iftype;
1707 int rem_band;
1708
1709 nla_for_each_nested(nl_iftype,
1710 tb_band[NL80211_BAND_ATTR_IFTYPE_DATA],
1711 rem_band) {
1712 ret = phy_info_iftype(mode, nl_iftype);
1713 if (ret != NL_OK)
1714 return ret;
1715 }
1716 }
1717
1718 return NL_OK;
1719 }
1720
1721
phy_info_handler(struct nl_msg * msg,void * arg)1722 static int phy_info_handler(struct nl_msg *msg, void *arg)
1723 {
1724 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1725 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1726 struct phy_info_arg *phy_info = arg;
1727 struct nlattr *nl_band;
1728 int rem_band;
1729
1730 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1731 genlmsg_attrlen(gnlh, 0), NULL);
1732
1733 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1734 return NL_SKIP;
1735
1736 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1737 {
1738 int res = phy_info_band(phy_info, nl_band);
1739 if (res != NL_OK)
1740 return res;
1741 }
1742
1743 return NL_SKIP;
1744 }
1745
1746
1747 static struct hostapd_hw_modes *
wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes * modes,u16 * num_modes)1748 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1749 u16 *num_modes)
1750 {
1751 u16 m;
1752 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1753 int i, mode11g_idx = -1;
1754
1755 /* heuristic to set up modes */
1756 for (m = 0; m < *num_modes; m++) {
1757 if (!modes[m].num_channels)
1758 continue;
1759 if (modes[m].channels[0].freq < 4000) {
1760 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1761 for (i = 0; i < modes[m].num_rates; i++) {
1762 if (modes[m].rates[i] > 200) {
1763 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1764 break;
1765 }
1766 }
1767 } else if (modes[m].channels[0].freq > 50000)
1768 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1769 else
1770 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1771 }
1772
1773 /* If only 802.11g mode is included, use it to construct matching
1774 * 802.11b mode data. */
1775
1776 for (m = 0; m < *num_modes; m++) {
1777 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1778 return modes; /* 802.11b already included */
1779 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1780 mode11g_idx = m;
1781 }
1782
1783 if (mode11g_idx < 0)
1784 return modes; /* 2.4 GHz band not supported at all */
1785
1786 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1787 if (nmodes == NULL)
1788 return modes; /* Could not add 802.11b mode */
1789
1790 mode = &nmodes[*num_modes];
1791 os_memset(mode, 0, sizeof(*mode));
1792 (*num_modes)++;
1793 modes = nmodes;
1794
1795 mode->mode = HOSTAPD_MODE_IEEE80211B;
1796
1797 mode11g = &modes[mode11g_idx];
1798 mode->num_channels = mode11g->num_channels;
1799 mode->channels = os_memdup(mode11g->channels,
1800 mode11g->num_channels *
1801 sizeof(struct hostapd_channel_data));
1802 if (mode->channels == NULL) {
1803 (*num_modes)--;
1804 return modes; /* Could not add 802.11b mode */
1805 }
1806
1807 mode->num_rates = 0;
1808 mode->rates = os_malloc(4 * sizeof(int));
1809 if (mode->rates == NULL) {
1810 os_free(mode->channels);
1811 (*num_modes)--;
1812 return modes; /* Could not add 802.11b mode */
1813 }
1814
1815 for (i = 0; i < mode11g->num_rates; i++) {
1816 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1817 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1818 continue;
1819 mode->rates[mode->num_rates] = mode11g->rates[i];
1820 mode->num_rates++;
1821 if (mode->num_rates == 4)
1822 break;
1823 }
1824
1825 if (mode->num_rates == 0) {
1826 os_free(mode->channels);
1827 os_free(mode->rates);
1828 (*num_modes)--;
1829 return modes; /* No 802.11b rates */
1830 }
1831
1832 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1833 "information");
1834
1835 return modes;
1836 }
1837
1838
nl80211_set_ht40_mode(struct hostapd_hw_modes * mode,int start,int end)1839 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1840 int end)
1841 {
1842 int c;
1843
1844 for (c = 0; c < mode->num_channels; c++) {
1845 struct hostapd_channel_data *chan = &mode->channels[c];
1846 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1847 chan->flag |= HOSTAPD_CHAN_HT40;
1848 }
1849 }
1850
1851
nl80211_set_ht40_mode_sec(struct hostapd_hw_modes * mode,int start,int end)1852 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1853 int end)
1854 {
1855 int c;
1856
1857 for (c = 0; c < mode->num_channels; c++) {
1858 struct hostapd_channel_data *chan = &mode->channels[c];
1859 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1860 continue;
1861 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1862 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1863 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1864 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1865 }
1866 }
1867
1868
nl80211_reg_rule_max_eirp(u32 start,u32 end,u32 max_eirp,struct phy_info_arg * results)1869 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1870 struct phy_info_arg *results)
1871 {
1872 u16 m;
1873
1874 for (m = 0; m < *results->num_modes; m++) {
1875 int c;
1876 struct hostapd_hw_modes *mode = &results->modes[m];
1877
1878 for (c = 0; c < mode->num_channels; c++) {
1879 struct hostapd_channel_data *chan = &mode->channels[c];
1880 if ((u32) chan->freq - 10 >= start &&
1881 (u32) chan->freq + 10 <= end)
1882 chan->max_tx_power = max_eirp;
1883 }
1884 }
1885 }
1886
1887
nl80211_reg_rule_ht40(u32 start,u32 end,struct phy_info_arg * results)1888 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1889 struct phy_info_arg *results)
1890 {
1891 u16 m;
1892
1893 for (m = 0; m < *results->num_modes; m++) {
1894 if (!(results->modes[m].ht_capab &
1895 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1896 continue;
1897 nl80211_set_ht40_mode(&results->modes[m], start, end);
1898 }
1899 }
1900
1901
nl80211_reg_rule_sec(struct nlattr * tb[],struct phy_info_arg * results)1902 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1903 struct phy_info_arg *results)
1904 {
1905 u32 start, end, max_bw;
1906 u16 m;
1907
1908 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1909 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1910 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1911 return;
1912
1913 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1914 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1915 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1916
1917 if (max_bw < 20)
1918 return;
1919
1920 for (m = 0; m < *results->num_modes; m++) {
1921 if (!(results->modes[m].ht_capab &
1922 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1923 continue;
1924 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1925 }
1926 }
1927
1928
nl80211_set_vht_mode(struct hostapd_hw_modes * mode,int start,int end,int max_bw)1929 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1930 int end, int max_bw)
1931 {
1932 int c;
1933
1934 for (c = 0; c < mode->num_channels; c++) {
1935 struct hostapd_channel_data *chan = &mode->channels[c];
1936 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1937 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1938
1939 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1940 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1941
1942 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1943 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1944
1945 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1946 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1947
1948 if (max_bw >= 160) {
1949 if (chan->freq - 10 >= start && chan->freq + 150 <= end)
1950 chan->flag |= HOSTAPD_CHAN_VHT_10_150;
1951
1952 if (chan->freq - 30 >= start && chan->freq + 130 <= end)
1953 chan->flag |= HOSTAPD_CHAN_VHT_30_130;
1954
1955 if (chan->freq - 50 >= start && chan->freq + 110 <= end)
1956 chan->flag |= HOSTAPD_CHAN_VHT_50_110;
1957
1958 if (chan->freq - 70 >= start && chan->freq + 90 <= end)
1959 chan->flag |= HOSTAPD_CHAN_VHT_70_90;
1960
1961 if (chan->freq - 90 >= start && chan->freq + 70 <= end)
1962 chan->flag |= HOSTAPD_CHAN_VHT_90_70;
1963
1964 if (chan->freq - 110 >= start && chan->freq + 50 <= end)
1965 chan->flag |= HOSTAPD_CHAN_VHT_110_50;
1966
1967 if (chan->freq - 130 >= start && chan->freq + 30 <= end)
1968 chan->flag |= HOSTAPD_CHAN_VHT_130_30;
1969
1970 if (chan->freq - 150 >= start && chan->freq + 10 <= end)
1971 chan->flag |= HOSTAPD_CHAN_VHT_150_10;
1972 }
1973 }
1974 }
1975
1976
nl80211_reg_rule_vht(struct nlattr * tb[],struct phy_info_arg * results)1977 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1978 struct phy_info_arg *results)
1979 {
1980 u32 start, end, max_bw;
1981 u16 m;
1982
1983 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1984 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1985 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1986 return;
1987
1988 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1989 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1990 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1991
1992 if (max_bw < 80)
1993 return;
1994
1995 for (m = 0; m < *results->num_modes; m++) {
1996 if (!(results->modes[m].ht_capab &
1997 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1998 continue;
1999 /* TODO: use a real VHT support indication */
2000 if (!results->modes[m].vht_capab)
2001 continue;
2002
2003 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw);
2004 }
2005 }
2006
2007
nl80211_set_dfs_domain(enum nl80211_dfs_regions region,u8 * dfs_domain)2008 static void nl80211_set_dfs_domain(enum nl80211_dfs_regions region,
2009 u8 *dfs_domain)
2010 {
2011 if (region == NL80211_DFS_FCC)
2012 *dfs_domain = HOSTAPD_DFS_REGION_FCC;
2013 else if (region == NL80211_DFS_ETSI)
2014 *dfs_domain = HOSTAPD_DFS_REGION_ETSI;
2015 else if (region == NL80211_DFS_JP)
2016 *dfs_domain = HOSTAPD_DFS_REGION_JP;
2017 else
2018 *dfs_domain = 0;
2019 }
2020
2021
dfs_domain_name(enum nl80211_dfs_regions region)2022 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
2023 {
2024 switch (region) {
2025 case NL80211_DFS_UNSET:
2026 return "DFS-UNSET";
2027 case NL80211_DFS_FCC:
2028 return "DFS-FCC";
2029 case NL80211_DFS_ETSI:
2030 return "DFS-ETSI";
2031 case NL80211_DFS_JP:
2032 return "DFS-JP";
2033 default:
2034 return "DFS-invalid";
2035 }
2036 }
2037
2038
nl80211_get_reg(struct nl_msg * msg,void * arg)2039 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
2040 {
2041 struct phy_info_arg *results = arg;
2042 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2043 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2044 struct nlattr *nl_rule;
2045 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
2046 int rem_rule;
2047 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2048 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2049 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2050 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2051 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2052 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2053 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2054 };
2055
2056 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2057 genlmsg_attrlen(gnlh, 0), NULL);
2058 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
2059 !tb_msg[NL80211_ATTR_REG_RULES]) {
2060 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
2061 "available");
2062 return NL_SKIP;
2063 }
2064
2065 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
2066 enum nl80211_dfs_regions dfs_domain;
2067 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
2068 nl80211_set_dfs_domain(dfs_domain, &results->dfs_domain);
2069 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
2070 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
2071 dfs_domain_name(dfs_domain));
2072 } else {
2073 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
2074 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
2075 }
2076
2077 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
2078 {
2079 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
2080 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
2081 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
2082 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
2083 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
2084 continue;
2085 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
2086 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
2087 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2088 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
2089 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2090 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
2091 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
2092 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
2093
2094 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
2095 start, end, max_bw, max_eirp,
2096 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
2097 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
2098 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
2099 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
2100 "",
2101 flags & NL80211_RRF_DFS ? " (DFS)" : "",
2102 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
2103 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
2104 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
2105 if (max_bw >= 40)
2106 nl80211_reg_rule_ht40(start, end, results);
2107 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2108 nl80211_reg_rule_max_eirp(start, end, max_eirp,
2109 results);
2110 }
2111
2112 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
2113 {
2114 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
2115 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
2116 nl80211_reg_rule_sec(tb_rule, results);
2117 }
2118
2119 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
2120 {
2121 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
2122 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
2123 nl80211_reg_rule_vht(tb_rule, results);
2124 }
2125
2126 return NL_SKIP;
2127 }
2128
2129
nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data * drv,struct phy_info_arg * results)2130 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
2131 struct phy_info_arg *results)
2132 {
2133 struct nl_msg *msg;
2134
2135 msg = nlmsg_alloc();
2136 if (!msg)
2137 return -ENOMEM;
2138
2139 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
2140 if (drv->capa.flags & WPA_DRIVER_FLAGS_SELF_MANAGED_REGULATORY) {
2141 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, drv->wiphy_idx)) {
2142 nlmsg_free(msg);
2143 return -1;
2144 }
2145 }
2146
2147 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
2148 }
2149
2150
modestr(enum hostapd_hw_mode mode)2151 static const char * modestr(enum hostapd_hw_mode mode)
2152 {
2153 switch (mode) {
2154 case HOSTAPD_MODE_IEEE80211B:
2155 return "802.11b";
2156 case HOSTAPD_MODE_IEEE80211G:
2157 return "802.11g";
2158 case HOSTAPD_MODE_IEEE80211A:
2159 return "802.11a";
2160 case HOSTAPD_MODE_IEEE80211AD:
2161 return "802.11ad";
2162 default:
2163 return "?";
2164 }
2165 }
2166
2167
nl80211_dump_chan_list(struct hostapd_hw_modes * modes,u16 num_modes)2168 static void nl80211_dump_chan_list(struct hostapd_hw_modes *modes,
2169 u16 num_modes)
2170 {
2171 int i;
2172
2173 if (!modes)
2174 return;
2175
2176 for (i = 0; i < num_modes; i++) {
2177 struct hostapd_hw_modes *mode = &modes[i];
2178 char str[200];
2179 char *pos = str;
2180 char *end = pos + sizeof(str);
2181 int j, res;
2182
2183 for (j = 0; j < mode->num_channels; j++) {
2184 struct hostapd_channel_data *chan = &mode->channels[j];
2185
2186 res = os_snprintf(pos, end - pos, " %d%s%s%s",
2187 chan->freq,
2188 (chan->flag & HOSTAPD_CHAN_DISABLED) ?
2189 "[DISABLED]" : "",
2190 (chan->flag & HOSTAPD_CHAN_NO_IR) ?
2191 "[NO_IR]" : "",
2192 (chan->flag & HOSTAPD_CHAN_RADAR) ?
2193 "[RADAR]" : "");
2194 if (os_snprintf_error(end - pos, res))
2195 break;
2196 pos += res;
2197 }
2198
2199 *pos = '\0';
2200 wpa_printf(MSG_DEBUG, "nl80211: Mode IEEE %s:%s",
2201 modestr(mode->mode), str);
2202 }
2203 }
2204
2205
2206 struct hostapd_hw_modes *
nl80211_get_hw_feature_data(void * priv,u16 * num_modes,u16 * flags,u8 * dfs_domain)2207 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags,
2208 u8 *dfs_domain)
2209 {
2210 u32 feat;
2211 struct i802_bss *bss = priv;
2212 struct wpa_driver_nl80211_data *drv = bss->drv;
2213 int nl_flags = 0;
2214 struct nl_msg *msg;
2215 struct phy_info_arg result = {
2216 .num_modes = num_modes,
2217 .modes = NULL,
2218 .last_mode = -1,
2219 .failed = 0,
2220 .dfs_domain = 0,
2221 };
2222
2223 *num_modes = 0;
2224 *flags = 0;
2225 *dfs_domain = 0;
2226
2227 feat = get_nl80211_protocol_features(drv);
2228 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
2229 nl_flags = NLM_F_DUMP;
2230 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
2231 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
2232 nlmsg_free(msg);
2233 return NULL;
2234 }
2235
2236 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
2237 struct hostapd_hw_modes *modes;
2238
2239 nl80211_set_regulatory_flags(drv, &result);
2240 if (result.failed) {
2241 int i;
2242
2243 for (i = 0; result.modes && i < *num_modes; i++) {
2244 os_free(result.modes[i].channels);
2245 os_free(result.modes[i].rates);
2246 }
2247 os_free(result.modes);
2248 *num_modes = 0;
2249 return NULL;
2250 }
2251
2252 *dfs_domain = result.dfs_domain;
2253
2254 modes = wpa_driver_nl80211_postprocess_modes(result.modes,
2255 num_modes);
2256 nl80211_dump_chan_list(modes, *num_modes);
2257 return modes;
2258 }
2259
2260 return NULL;
2261 }
2262