1 /*
2 * Driver interaction with Linux nl80211/cfg80211 - Capabilities
3 * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
5 * Copyright (c) 2009-2010, Atheros Communications
6 *
7 * This software may be distributed under the terms of the BSD license.
8 * See README for more details.
9 */
10
11 #include "includes.h"
12 #include <netlink/genl/genl.h>
13
14 #include "utils/common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/ieee802_11_common.h"
17 #include "common/qca-vendor.h"
18 #include "common/qca-vendor-attr.h"
19 #include "driver_nl80211.h"
20
21
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 monitor_supported:1;
70 unsigned int auth_supported:1;
71 unsigned int connect_supported:1;
72 unsigned int p2p_go_supported:1;
73 unsigned int p2p_client_supported:1;
74 unsigned int p2p_go_ctwindow_supported:1;
75 unsigned int p2p_concurrent:1;
76 unsigned int channel_switch_supported:1;
77 unsigned int set_qos_map_supported:1;
78 unsigned int have_low_prio_scan:1;
79 unsigned int wmm_ac_supported:1;
80 unsigned int mac_addr_rand_scan_supported:1;
81 unsigned int mac_addr_rand_sched_scan_supported:1;
82 };
83
84
probe_resp_offload_support(int supp_protocols)85 static unsigned int probe_resp_offload_support(int supp_protocols)
86 {
87 unsigned int prot = 0;
88
89 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
90 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
91 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
92 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
93 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
94 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
95 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
96 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
97
98 return prot;
99 }
100
101
wiphy_info_supported_iftypes(struct wiphy_info_data * info,struct nlattr * tb)102 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
103 struct nlattr *tb)
104 {
105 struct nlattr *nl_mode;
106 int i;
107
108 if (tb == NULL)
109 return;
110
111 nla_for_each_nested(nl_mode, tb, i) {
112 switch (nla_type(nl_mode)) {
113 case NL80211_IFTYPE_AP:
114 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
115 break;
116 case NL80211_IFTYPE_MESH_POINT:
117 info->capa->flags |= WPA_DRIVER_FLAGS_MESH;
118 break;
119 case NL80211_IFTYPE_ADHOC:
120 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
121 break;
122 case NL80211_IFTYPE_P2P_DEVICE:
123 info->capa->flags |=
124 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
125 break;
126 case NL80211_IFTYPE_P2P_GO:
127 info->p2p_go_supported = 1;
128 break;
129 case NL80211_IFTYPE_P2P_CLIENT:
130 info->p2p_client_supported = 1;
131 break;
132 case NL80211_IFTYPE_MONITOR:
133 info->monitor_supported = 1;
134 break;
135 }
136 }
137 }
138
139
wiphy_info_iface_comb_process(struct wiphy_info_data * info,struct nlattr * nl_combi)140 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
141 struct nlattr *nl_combi)
142 {
143 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
144 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
145 struct nlattr *nl_limit, *nl_mode;
146 int err, rem_limit, rem_mode;
147 int combination_has_p2p = 0, combination_has_mgd = 0;
148 static struct nla_policy
149 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
150 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
151 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
152 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
153 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
154 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
155 },
156 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
157 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
158 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
159 };
160
161 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
162 nl_combi, iface_combination_policy);
163 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
164 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
165 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
166 return 0; /* broken combination */
167
168 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
169 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
170
171 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
172 rem_limit) {
173 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
174 nl_limit, iface_limit_policy);
175 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
176 return 0; /* broken combination */
177
178 nla_for_each_nested(nl_mode,
179 tb_limit[NL80211_IFACE_LIMIT_TYPES],
180 rem_mode) {
181 int ift = nla_type(nl_mode);
182 if (ift == NL80211_IFTYPE_P2P_GO ||
183 ift == NL80211_IFTYPE_P2P_CLIENT)
184 combination_has_p2p = 1;
185 if (ift == NL80211_IFTYPE_STATION)
186 combination_has_mgd = 1;
187 }
188 if (combination_has_p2p && combination_has_mgd)
189 break;
190 }
191
192 if (combination_has_p2p && combination_has_mgd) {
193 unsigned int num_channels =
194 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
195
196 info->p2p_concurrent = 1;
197 if (info->num_multichan_concurrent < num_channels)
198 info->num_multichan_concurrent = num_channels;
199 }
200
201 return 0;
202 }
203
204
wiphy_info_iface_comb(struct wiphy_info_data * info,struct nlattr * tb)205 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
206 struct nlattr *tb)
207 {
208 struct nlattr *nl_combi;
209 int rem_combi;
210
211 if (tb == NULL)
212 return;
213
214 nla_for_each_nested(nl_combi, tb, rem_combi) {
215 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
216 break;
217 }
218 }
219
220
wiphy_info_supp_cmds(struct wiphy_info_data * info,struct nlattr * tb)221 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
222 struct nlattr *tb)
223 {
224 struct nlattr *nl_cmd;
225 int i;
226
227 if (tb == NULL)
228 return;
229
230 nla_for_each_nested(nl_cmd, tb, i) {
231 switch (nla_get_u32(nl_cmd)) {
232 case NL80211_CMD_AUTHENTICATE:
233 info->auth_supported = 1;
234 break;
235 case NL80211_CMD_CONNECT:
236 info->connect_supported = 1;
237 break;
238 case NL80211_CMD_START_SCHED_SCAN:
239 info->capa->sched_scan_supported = 1;
240 break;
241 case NL80211_CMD_PROBE_CLIENT:
242 info->poll_command_supported = 1;
243 break;
244 case NL80211_CMD_CHANNEL_SWITCH:
245 info->channel_switch_supported = 1;
246 break;
247 case NL80211_CMD_SET_QOS_MAP:
248 info->set_qos_map_supported = 1;
249 break;
250 }
251 }
252 }
253
254
wiphy_info_cipher_suites(struct wiphy_info_data * info,struct nlattr * tb)255 static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
256 struct nlattr *tb)
257 {
258 int i, num;
259 u32 *ciphers;
260
261 if (tb == NULL)
262 return;
263
264 num = nla_len(tb) / sizeof(u32);
265 ciphers = nla_data(tb);
266 for (i = 0; i < num; i++) {
267 u32 c = ciphers[i];
268
269 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
270 c >> 24, (c >> 16) & 0xff,
271 (c >> 8) & 0xff, c & 0xff);
272 switch (c) {
273 case WLAN_CIPHER_SUITE_CCMP_256:
274 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
275 break;
276 case WLAN_CIPHER_SUITE_GCMP_256:
277 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
278 break;
279 case WLAN_CIPHER_SUITE_CCMP:
280 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
281 break;
282 case WLAN_CIPHER_SUITE_GCMP:
283 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
284 break;
285 case WLAN_CIPHER_SUITE_TKIP:
286 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
287 break;
288 case WLAN_CIPHER_SUITE_WEP104:
289 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
290 break;
291 case WLAN_CIPHER_SUITE_WEP40:
292 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
293 break;
294 case WLAN_CIPHER_SUITE_AES_CMAC:
295 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
296 break;
297 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
298 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
299 break;
300 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
301 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
302 break;
303 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
304 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
305 break;
306 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR:
307 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
308 break;
309 }
310 }
311 }
312
313
wiphy_info_max_roc(struct wpa_driver_capa * capa,struct nlattr * tb)314 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
315 struct nlattr *tb)
316 {
317 if (tb)
318 capa->max_remain_on_chan = nla_get_u32(tb);
319 }
320
321
wiphy_info_tdls(struct wpa_driver_capa * capa,struct nlattr * tdls,struct nlattr * ext_setup)322 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
323 struct nlattr *ext_setup)
324 {
325 if (tdls == NULL)
326 return;
327
328 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
329 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
330
331 if (ext_setup) {
332 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
333 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
334 }
335 }
336
337
ext_feature_isset(const u8 * ext_features,int ext_features_len,enum nl80211_ext_feature_index ftidx)338 static int ext_feature_isset(const u8 *ext_features, int ext_features_len,
339 enum nl80211_ext_feature_index ftidx)
340 {
341 u8 ft_byte;
342
343 if ((int) ftidx / 8 >= ext_features_len)
344 return 0;
345
346 ft_byte = ext_features[ftidx / 8];
347 return (ft_byte & BIT(ftidx % 8)) != 0;
348 }
349
350
wiphy_info_ext_feature_flags(struct wiphy_info_data * info,struct nlattr * tb)351 static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info,
352 struct nlattr *tb)
353 {
354 struct wpa_driver_capa *capa = info->capa;
355
356 if (tb == NULL)
357 return;
358
359 if (ext_feature_isset(nla_data(tb), nla_len(tb),
360 NL80211_EXT_FEATURE_VHT_IBSS))
361 capa->flags |= WPA_DRIVER_FLAGS_VHT_IBSS;
362 }
363
364
wiphy_info_feature_flags(struct wiphy_info_data * info,struct nlattr * tb)365 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
366 struct nlattr *tb)
367 {
368 u32 flags;
369 struct wpa_driver_capa *capa = info->capa;
370
371 if (tb == NULL)
372 return;
373
374 flags = nla_get_u32(tb);
375
376 if (flags & NL80211_FEATURE_SK_TX_STATUS)
377 info->data_tx_status = 1;
378
379 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
380 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
381
382 if (flags & NL80211_FEATURE_SAE)
383 capa->flags |= WPA_DRIVER_FLAGS_SAE;
384
385 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
386 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
387
388 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
389 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
390
391 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) {
392 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch");
393 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH;
394 }
395
396 if (flags & NL80211_FEATURE_P2P_GO_CTWIN)
397 info->p2p_go_ctwindow_supported = 1;
398
399 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
400 info->have_low_prio_scan = 1;
401
402 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)
403 info->mac_addr_rand_scan_supported = 1;
404
405 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR)
406 info->mac_addr_rand_sched_scan_supported = 1;
407
408 if (flags & NL80211_FEATURE_STATIC_SMPS)
409 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
410
411 if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
412 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
413
414 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
415 info->wmm_ac_supported = 1;
416
417 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES)
418 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES;
419
420 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES)
421 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES;
422
423 if (flags & NL80211_FEATURE_QUIET)
424 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET;
425
426 if (flags & NL80211_FEATURE_TX_POWER_INSERTION)
427 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION;
428
429 if (flags & NL80211_FEATURE_HT_IBSS)
430 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS;
431
432 if (flags & NL80211_FEATURE_FULL_AP_CLIENT_STATE)
433 capa->flags |= WPA_DRIVER_FLAGS_FULL_AP_CLIENT_STATE;
434 }
435
436
wiphy_info_probe_resp_offload(struct wpa_driver_capa * capa,struct nlattr * tb)437 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
438 struct nlattr *tb)
439 {
440 u32 protocols;
441
442 if (tb == NULL)
443 return;
444
445 protocols = nla_get_u32(tb);
446 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
447 "mode");
448 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
449 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
450 }
451
452
wiphy_info_wowlan_triggers(struct wpa_driver_capa * capa,struct nlattr * tb)453 static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
454 struct nlattr *tb)
455 {
456 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
457
458 if (tb == NULL)
459 return;
460
461 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
462 tb, NULL))
463 return;
464
465 if (triggers[NL80211_WOWLAN_TRIG_ANY])
466 capa->wowlan_triggers.any = 1;
467 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
468 capa->wowlan_triggers.disconnect = 1;
469 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
470 capa->wowlan_triggers.magic_pkt = 1;
471 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
472 capa->wowlan_triggers.gtk_rekey_failure = 1;
473 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
474 capa->wowlan_triggers.eap_identity_req = 1;
475 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
476 capa->wowlan_triggers.four_way_handshake = 1;
477 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
478 capa->wowlan_triggers.rfkill_release = 1;
479 }
480
481
wiphy_info_handler(struct nl_msg * msg,void * arg)482 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
483 {
484 struct nlattr *tb[NL80211_ATTR_MAX + 1];
485 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
486 struct wiphy_info_data *info = arg;
487 struct wpa_driver_capa *capa = info->capa;
488 struct wpa_driver_nl80211_data *drv = info->drv;
489
490 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
491 genlmsg_attrlen(gnlh, 0), NULL);
492
493 if (tb[NL80211_ATTR_WIPHY])
494 drv->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
495
496 if (tb[NL80211_ATTR_WIPHY_NAME])
497 os_strlcpy(drv->phyname,
498 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
499 sizeof(drv->phyname));
500 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
501 capa->max_scan_ssids =
502 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
503
504 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
505 capa->max_sched_scan_ssids =
506 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
507
508 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS] &&
509 tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL] &&
510 tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]) {
511 capa->max_sched_scan_plans =
512 nla_get_u32(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS]);
513
514 capa->max_sched_scan_plan_interval =
515 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL]);
516
517 capa->max_sched_scan_plan_iterations =
518 nla_get_u32(tb[NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS]);
519 }
520
521 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
522 capa->max_match_sets =
523 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
524
525 if (tb[NL80211_ATTR_MAC_ACL_MAX])
526 capa->max_acl_mac_addrs =
527 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
528
529 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
530 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
531 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
532 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
533
534 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
535 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
536 "off-channel TX");
537 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
538 }
539
540 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
541 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
542 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
543 }
544
545 wiphy_info_max_roc(capa,
546 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
547
548 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
549 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
550
551 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
552 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
553
554 if (tb[NL80211_ATTR_DEVICE_AP_SME])
555 info->device_ap_sme = 1;
556
557 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
558 wiphy_info_ext_feature_flags(info, tb[NL80211_ATTR_EXT_FEATURES]);
559 wiphy_info_probe_resp_offload(capa,
560 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
561
562 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
563 drv->extended_capa == NULL) {
564 drv->extended_capa =
565 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
566 if (drv->extended_capa) {
567 os_memcpy(drv->extended_capa,
568 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
569 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
570 drv->extended_capa_len =
571 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
572 }
573 drv->extended_capa_mask =
574 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
575 if (drv->extended_capa_mask) {
576 os_memcpy(drv->extended_capa_mask,
577 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]),
578 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
579 } else {
580 os_free(drv->extended_capa);
581 drv->extended_capa = NULL;
582 drv->extended_capa_len = 0;
583 }
584 }
585
586 if (tb[NL80211_ATTR_VENDOR_DATA]) {
587 struct nlattr *nl;
588 int rem;
589
590 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
591 struct nl80211_vendor_cmd_info *vinfo;
592 if (nla_len(nl) != sizeof(*vinfo)) {
593 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
594 continue;
595 }
596 vinfo = nla_data(nl);
597 if (vinfo->vendor_id == OUI_QCA) {
598 switch (vinfo->subcmd) {
599 case QCA_NL80211_VENDOR_SUBCMD_TEST:
600 drv->vendor_cmd_test_avail = 1;
601 break;
602 #ifdef CONFIG_DRIVER_NL80211_QCA
603 case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
604 drv->roaming_vendor_cmd_avail = 1;
605 break;
606 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
607 drv->dfs_vendor_cmd_avail = 1;
608 break;
609 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
610 drv->get_features_vendor_cmd_avail = 1;
611 break;
612 case QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST:
613 drv->get_pref_freq_list = 1;
614 break;
615 case QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL:
616 drv->set_prob_oper_freq = 1;
617 break;
618 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
619 drv->capa.flags |=
620 WPA_DRIVER_FLAGS_ACS_OFFLOAD;
621 break;
622 case QCA_NL80211_VENDOR_SUBCMD_SETBAND:
623 drv->setband_vendor_cmd_avail = 1;
624 break;
625 case QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN:
626 drv->scan_vendor_cmd_avail = 1;
627 break;
628 #endif /* CONFIG_DRIVER_NL80211_QCA */
629 }
630 }
631
632 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
633 vinfo->vendor_id, vinfo->subcmd);
634 }
635 }
636
637 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
638 struct nlattr *nl;
639 int rem;
640
641 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
642 struct nl80211_vendor_cmd_info *vinfo;
643 if (nla_len(nl) != sizeof(*vinfo)) {
644 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
645 continue;
646 }
647 vinfo = nla_data(nl);
648 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
649 vinfo->vendor_id, vinfo->subcmd);
650 }
651 }
652
653 wiphy_info_wowlan_triggers(capa,
654 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
655
656 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
657 capa->max_stations =
658 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
659
660 if (tb[NL80211_ATTR_MAX_CSA_COUNTERS])
661 capa->max_csa_counters =
662 nla_get_u8(tb[NL80211_ATTR_MAX_CSA_COUNTERS]);
663
664 return NL_SKIP;
665 }
666
667
wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data * drv,struct wiphy_info_data * info)668 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
669 struct wiphy_info_data *info)
670 {
671 u32 feat;
672 struct nl_msg *msg;
673 int flags = 0;
674
675 os_memset(info, 0, sizeof(*info));
676 info->capa = &drv->capa;
677 info->drv = drv;
678
679 feat = get_nl80211_protocol_features(drv);
680 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
681 flags = NLM_F_DUMP;
682 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
683 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
684 nlmsg_free(msg);
685 return -1;
686 }
687
688 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
689 return -1;
690
691 if (info->auth_supported)
692 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
693 else if (!info->connect_supported) {
694 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
695 "authentication/association or connect commands");
696 info->error = 1;
697 }
698
699 if (info->p2p_go_supported && info->p2p_client_supported)
700 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
701 if (info->p2p_concurrent) {
702 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
703 "interface (driver advertised support)");
704 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
705 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
706 }
707 if (info->num_multichan_concurrent > 1) {
708 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
709 "concurrent (driver advertised support)");
710 drv->capa.num_multichan_concurrent =
711 info->num_multichan_concurrent;
712 }
713 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
714 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
715
716 /* default to 5000 since early versions of mac80211 don't set it */
717 if (!drv->capa.max_remain_on_chan)
718 drv->capa.max_remain_on_chan = 5000;
719
720 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
721
722 drv->capa.mac_addr_rand_sched_scan_supported =
723 info->mac_addr_rand_sched_scan_supported;
724 drv->capa.mac_addr_rand_scan_supported =
725 info->mac_addr_rand_scan_supported;
726
727 if (info->channel_switch_supported) {
728 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
729 if (!drv->capa.max_csa_counters)
730 drv->capa.max_csa_counters = 1;
731 }
732
733 if (!drv->capa.max_sched_scan_plans) {
734 drv->capa.max_sched_scan_plans = 1;
735 drv->capa.max_sched_scan_plan_interval = UINT32_MAX;
736 drv->capa.max_sched_scan_plan_iterations = 0;
737 }
738
739 return 0;
740 }
741
742
743 #ifdef CONFIG_DRIVER_NL80211_QCA
744
dfs_info_handler(struct nl_msg * msg,void * arg)745 static int dfs_info_handler(struct nl_msg *msg, void *arg)
746 {
747 struct nlattr *tb[NL80211_ATTR_MAX + 1];
748 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
749 int *dfs_capability_ptr = arg;
750
751 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
752 genlmsg_attrlen(gnlh, 0), NULL);
753
754 if (tb[NL80211_ATTR_VENDOR_DATA]) {
755 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
756 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
757
758 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
759 nla_data(nl_vend), nla_len(nl_vend), NULL);
760
761 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
762 u32 val;
763 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
764 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
765 val);
766 *dfs_capability_ptr = val;
767 }
768 }
769
770 return NL_SKIP;
771 }
772
773
qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data * drv)774 static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
775 {
776 struct nl_msg *msg;
777 int dfs_capability = 0;
778 int ret;
779
780 if (!drv->dfs_vendor_cmd_avail)
781 return;
782
783 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
784 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
785 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
786 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
787 nlmsg_free(msg);
788 return;
789 }
790
791 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
792 if (!ret && dfs_capability)
793 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
794 }
795
796
797 struct features_info {
798 u8 *flags;
799 size_t flags_len;
800 struct wpa_driver_capa *capa;
801 };
802
803
features_info_handler(struct nl_msg * msg,void * arg)804 static int features_info_handler(struct nl_msg *msg, void *arg)
805 {
806 struct nlattr *tb[NL80211_ATTR_MAX + 1];
807 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
808 struct features_info *info = arg;
809 struct nlattr *nl_vend, *attr;
810
811 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
812 genlmsg_attrlen(gnlh, 0), NULL);
813
814 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
815 if (nl_vend) {
816 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
817
818 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
819 nla_data(nl_vend), nla_len(nl_vend), NULL);
820
821 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS];
822 if (attr) {
823 int len = nla_len(attr);
824 info->flags = os_malloc(len);
825 if (info->flags != NULL) {
826 os_memcpy(info->flags, nla_data(attr), len);
827 info->flags_len = len;
828 }
829 }
830 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA];
831 if (attr)
832 info->capa->conc_capab = nla_get_u32(attr);
833
834 attr = tb_vendor[
835 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND];
836 if (attr)
837 info->capa->max_conc_chan_2_4 = nla_get_u32(attr);
838
839 attr = tb_vendor[
840 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND];
841 if (attr)
842 info->capa->max_conc_chan_5_0 = nla_get_u32(attr);
843 }
844
845 return NL_SKIP;
846 }
847
848
check_feature(enum qca_wlan_vendor_features feature,struct features_info * info)849 static int check_feature(enum qca_wlan_vendor_features feature,
850 struct features_info *info)
851 {
852 size_t idx = feature / 8;
853
854 return (idx < info->flags_len) &&
855 (info->flags[idx] & BIT(feature % 8));
856 }
857
858
qca_nl80211_get_features(struct wpa_driver_nl80211_data * drv)859 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
860 {
861 struct nl_msg *msg;
862 struct features_info info;
863 int ret;
864
865 if (!drv->get_features_vendor_cmd_avail)
866 return;
867
868 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
869 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
870 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
871 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
872 nlmsg_free(msg);
873 return;
874 }
875
876 os_memset(&info, 0, sizeof(info));
877 info.capa = &drv->capa;
878 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
879 if (ret || !info.flags)
880 return;
881
882 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
883 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
884
885 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
886 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
887
888 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS,
889 &info))
890 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
891 os_free(info.flags);
892 }
893
894 #endif /* CONFIG_DRIVER_NL80211_QCA */
895
896
wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data * drv)897 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
898 {
899 struct wiphy_info_data info;
900 if (wpa_driver_nl80211_get_info(drv, &info))
901 return -1;
902
903 if (info.error)
904 return -1;
905
906 drv->has_capability = 1;
907 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
908 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
909 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
910 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK |
911 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B |
912 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192;
913 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
914 WPA_DRIVER_AUTH_SHARED |
915 WPA_DRIVER_AUTH_LEAP;
916
917 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
918 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
919 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
920
921 /*
922 * As all cfg80211 drivers must support cases where the AP interface is
923 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
924 * case that the user space daemon has crashed, they must be able to
925 * cleanup all stations and key entries in the AP tear down flow. Thus,
926 * this flag can/should always be set for cfg80211 drivers.
927 */
928 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
929
930 if (!info.device_ap_sme) {
931 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
932
933 /*
934 * No AP SME is currently assumed to also indicate no AP MLME
935 * in the driver/firmware.
936 */
937 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
938 }
939
940 drv->device_ap_sme = info.device_ap_sme;
941 drv->poll_command_supported = info.poll_command_supported;
942 drv->data_tx_status = info.data_tx_status;
943 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported;
944 if (info.set_qos_map_supported)
945 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
946 drv->have_low_prio_scan = info.have_low_prio_scan;
947
948 /*
949 * If poll command and tx status are supported, mac80211 is new enough
950 * to have everything we need to not need monitor interfaces.
951 */
952 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
953
954 if (drv->device_ap_sme && drv->use_monitor) {
955 /*
956 * Non-mac80211 drivers may not support monitor interface.
957 * Make sure we do not get stuck with incorrect capability here
958 * by explicitly testing this.
959 */
960 if (!info.monitor_supported) {
961 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
962 "with device_ap_sme since no monitor mode "
963 "support detected");
964 drv->use_monitor = 0;
965 }
966 }
967
968 /*
969 * If we aren't going to use monitor interfaces, but the
970 * driver doesn't support data TX status, we won't get TX
971 * status for EAPOL frames.
972 */
973 if (!drv->use_monitor && !info.data_tx_status)
974 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
975
976 #ifdef CONFIG_DRIVER_NL80211_QCA
977 qca_nl80211_check_dfs_capa(drv);
978 qca_nl80211_get_features(drv);
979
980 /*
981 * To enable offchannel simultaneous support in wpa_supplicant, the
982 * underlying driver needs to support the same along with offchannel TX.
983 * Offchannel TX support is needed since remain_on_channel and
984 * action_tx use some common data structures and hence cannot be
985 * scheduled simultaneously.
986 */
987 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
988 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
989 #endif /* CONFIG_DRIVER_NL80211_QCA */
990
991 return 0;
992 }
993
994
995 struct phy_info_arg {
996 u16 *num_modes;
997 struct hostapd_hw_modes *modes;
998 int last_mode, last_chan_idx;
999 int failed;
1000 };
1001
phy_info_ht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * ampdu_factor,struct nlattr * ampdu_density,struct nlattr * mcs_set)1002 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
1003 struct nlattr *ampdu_factor,
1004 struct nlattr *ampdu_density,
1005 struct nlattr *mcs_set)
1006 {
1007 if (capa)
1008 mode->ht_capab = nla_get_u16(capa);
1009
1010 if (ampdu_factor)
1011 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
1012
1013 if (ampdu_density)
1014 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
1015
1016 if (mcs_set && nla_len(mcs_set) >= 16) {
1017 u8 *mcs;
1018 mcs = nla_data(mcs_set);
1019 os_memcpy(mode->mcs_set, mcs, 16);
1020 }
1021 }
1022
1023
phy_info_vht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * mcs_set)1024 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
1025 struct nlattr *capa,
1026 struct nlattr *mcs_set)
1027 {
1028 if (capa)
1029 mode->vht_capab = nla_get_u32(capa);
1030
1031 if (mcs_set && nla_len(mcs_set) >= 8) {
1032 u8 *mcs;
1033 mcs = nla_data(mcs_set);
1034 os_memcpy(mode->vht_mcs_set, mcs, 8);
1035 }
1036 }
1037
1038
phy_info_freq(struct hostapd_hw_modes * mode,struct hostapd_channel_data * chan,struct nlattr * tb_freq[])1039 static void phy_info_freq(struct hostapd_hw_modes *mode,
1040 struct hostapd_channel_data *chan,
1041 struct nlattr *tb_freq[])
1042 {
1043 u8 channel;
1044 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1045 chan->flag = 0;
1046 chan->dfs_cac_ms = 0;
1047 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
1048 chan->chan = channel;
1049
1050 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1051 chan->flag |= HOSTAPD_CHAN_DISABLED;
1052 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
1053 chan->flag |= HOSTAPD_CHAN_NO_IR;
1054 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1055 chan->flag |= HOSTAPD_CHAN_RADAR;
1056 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
1057 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
1058 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
1059 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
1060
1061 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
1062 enum nl80211_dfs_state state =
1063 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
1064
1065 switch (state) {
1066 case NL80211_DFS_USABLE:
1067 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
1068 break;
1069 case NL80211_DFS_AVAILABLE:
1070 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
1071 break;
1072 case NL80211_DFS_UNAVAILABLE:
1073 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
1074 break;
1075 }
1076 }
1077
1078 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
1079 chan->dfs_cac_ms = nla_get_u32(
1080 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
1081 }
1082 }
1083
1084
phy_info_freqs(struct phy_info_arg * phy_info,struct hostapd_hw_modes * mode,struct nlattr * tb)1085 static int phy_info_freqs(struct phy_info_arg *phy_info,
1086 struct hostapd_hw_modes *mode, struct nlattr *tb)
1087 {
1088 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1089 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1090 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1091 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
1092 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1093 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1094 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
1095 };
1096 int new_channels = 0;
1097 struct hostapd_channel_data *channel;
1098 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1099 struct nlattr *nl_freq;
1100 int rem_freq, idx;
1101
1102 if (tb == NULL)
1103 return NL_OK;
1104
1105 nla_for_each_nested(nl_freq, tb, rem_freq) {
1106 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1107 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1108 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1109 continue;
1110 new_channels++;
1111 }
1112
1113 channel = os_realloc_array(mode->channels,
1114 mode->num_channels + new_channels,
1115 sizeof(struct hostapd_channel_data));
1116 if (!channel)
1117 return NL_STOP;
1118
1119 mode->channels = channel;
1120 mode->num_channels += new_channels;
1121
1122 idx = phy_info->last_chan_idx;
1123
1124 nla_for_each_nested(nl_freq, tb, rem_freq) {
1125 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1126 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1127 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1128 continue;
1129 phy_info_freq(mode, &mode->channels[idx], tb_freq);
1130 idx++;
1131 }
1132 phy_info->last_chan_idx = idx;
1133
1134 return NL_OK;
1135 }
1136
1137
phy_info_rates(struct hostapd_hw_modes * mode,struct nlattr * tb)1138 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1139 {
1140 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1141 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1142 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1143 { .type = NLA_FLAG },
1144 };
1145 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1146 struct nlattr *nl_rate;
1147 int rem_rate, idx;
1148
1149 if (tb == NULL)
1150 return NL_OK;
1151
1152 nla_for_each_nested(nl_rate, tb, rem_rate) {
1153 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1154 nla_data(nl_rate), nla_len(nl_rate),
1155 rate_policy);
1156 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1157 continue;
1158 mode->num_rates++;
1159 }
1160
1161 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1162 if (!mode->rates)
1163 return NL_STOP;
1164
1165 idx = 0;
1166
1167 nla_for_each_nested(nl_rate, tb, rem_rate) {
1168 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1169 nla_data(nl_rate), nla_len(nl_rate),
1170 rate_policy);
1171 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1172 continue;
1173 mode->rates[idx] = nla_get_u32(
1174 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1175 idx++;
1176 }
1177
1178 return NL_OK;
1179 }
1180
1181
phy_info_band(struct phy_info_arg * phy_info,struct nlattr * nl_band)1182 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1183 {
1184 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1185 struct hostapd_hw_modes *mode;
1186 int ret;
1187
1188 if (phy_info->last_mode != nl_band->nla_type) {
1189 mode = os_realloc_array(phy_info->modes,
1190 *phy_info->num_modes + 1,
1191 sizeof(*mode));
1192 if (!mode) {
1193 phy_info->failed = 1;
1194 return NL_STOP;
1195 }
1196 phy_info->modes = mode;
1197
1198 mode = &phy_info->modes[*(phy_info->num_modes)];
1199 os_memset(mode, 0, sizeof(*mode));
1200 mode->mode = NUM_HOSTAPD_MODES;
1201 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1202 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1203
1204 /*
1205 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1206 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1207 * possible streams as unsupported. This will be overridden if
1208 * driver advertises VHT support.
1209 */
1210 mode->vht_mcs_set[0] = 0xff;
1211 mode->vht_mcs_set[1] = 0xff;
1212 mode->vht_mcs_set[4] = 0xff;
1213 mode->vht_mcs_set[5] = 0xff;
1214
1215 *(phy_info->num_modes) += 1;
1216 phy_info->last_mode = nl_band->nla_type;
1217 phy_info->last_chan_idx = 0;
1218 } else
1219 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1220
1221 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1222 nla_len(nl_band), NULL);
1223
1224 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1225 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1226 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1227 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1228 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1229 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1230 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1231 if (ret == NL_OK)
1232 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1233 if (ret != NL_OK) {
1234 phy_info->failed = 1;
1235 return ret;
1236 }
1237
1238 return NL_OK;
1239 }
1240
1241
phy_info_handler(struct nl_msg * msg,void * arg)1242 static int phy_info_handler(struct nl_msg *msg, void *arg)
1243 {
1244 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1245 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1246 struct phy_info_arg *phy_info = arg;
1247 struct nlattr *nl_band;
1248 int rem_band;
1249
1250 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1251 genlmsg_attrlen(gnlh, 0), NULL);
1252
1253 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1254 return NL_SKIP;
1255
1256 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1257 {
1258 int res = phy_info_band(phy_info, nl_band);
1259 if (res != NL_OK)
1260 return res;
1261 }
1262
1263 return NL_SKIP;
1264 }
1265
1266
1267 static struct hostapd_hw_modes *
wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes * modes,u16 * num_modes)1268 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1269 u16 *num_modes)
1270 {
1271 u16 m;
1272 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1273 int i, mode11g_idx = -1;
1274
1275 /* heuristic to set up modes */
1276 for (m = 0; m < *num_modes; m++) {
1277 if (!modes[m].num_channels)
1278 continue;
1279 if (modes[m].channels[0].freq < 4000) {
1280 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1281 for (i = 0; i < modes[m].num_rates; i++) {
1282 if (modes[m].rates[i] > 200) {
1283 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1284 break;
1285 }
1286 }
1287 } else if (modes[m].channels[0].freq > 50000)
1288 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1289 else
1290 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1291 }
1292
1293 /* If only 802.11g mode is included, use it to construct matching
1294 * 802.11b mode data. */
1295
1296 for (m = 0; m < *num_modes; m++) {
1297 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1298 return modes; /* 802.11b already included */
1299 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1300 mode11g_idx = m;
1301 }
1302
1303 if (mode11g_idx < 0)
1304 return modes; /* 2.4 GHz band not supported at all */
1305
1306 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1307 if (nmodes == NULL)
1308 return modes; /* Could not add 802.11b mode */
1309
1310 mode = &nmodes[*num_modes];
1311 os_memset(mode, 0, sizeof(*mode));
1312 (*num_modes)++;
1313 modes = nmodes;
1314
1315 mode->mode = HOSTAPD_MODE_IEEE80211B;
1316
1317 mode11g = &modes[mode11g_idx];
1318 mode->num_channels = mode11g->num_channels;
1319 mode->channels = os_malloc(mode11g->num_channels *
1320 sizeof(struct hostapd_channel_data));
1321 if (mode->channels == NULL) {
1322 (*num_modes)--;
1323 return modes; /* Could not add 802.11b mode */
1324 }
1325 os_memcpy(mode->channels, mode11g->channels,
1326 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1327
1328 mode->num_rates = 0;
1329 mode->rates = os_malloc(4 * sizeof(int));
1330 if (mode->rates == NULL) {
1331 os_free(mode->channels);
1332 (*num_modes)--;
1333 return modes; /* Could not add 802.11b mode */
1334 }
1335
1336 for (i = 0; i < mode11g->num_rates; i++) {
1337 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1338 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1339 continue;
1340 mode->rates[mode->num_rates] = mode11g->rates[i];
1341 mode->num_rates++;
1342 if (mode->num_rates == 4)
1343 break;
1344 }
1345
1346 if (mode->num_rates == 0) {
1347 os_free(mode->channels);
1348 os_free(mode->rates);
1349 (*num_modes)--;
1350 return modes; /* No 802.11b rates */
1351 }
1352
1353 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1354 "information");
1355
1356 return modes;
1357 }
1358
1359
nl80211_set_ht40_mode(struct hostapd_hw_modes * mode,int start,int end)1360 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1361 int end)
1362 {
1363 int c;
1364
1365 for (c = 0; c < mode->num_channels; c++) {
1366 struct hostapd_channel_data *chan = &mode->channels[c];
1367 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1368 chan->flag |= HOSTAPD_CHAN_HT40;
1369 }
1370 }
1371
1372
nl80211_set_ht40_mode_sec(struct hostapd_hw_modes * mode,int start,int end)1373 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1374 int end)
1375 {
1376 int c;
1377
1378 for (c = 0; c < mode->num_channels; c++) {
1379 struct hostapd_channel_data *chan = &mode->channels[c];
1380 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1381 continue;
1382 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1383 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1384 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1385 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1386 }
1387 }
1388
1389
nl80211_reg_rule_max_eirp(u32 start,u32 end,u32 max_eirp,struct phy_info_arg * results)1390 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1391 struct phy_info_arg *results)
1392 {
1393 u16 m;
1394
1395 for (m = 0; m < *results->num_modes; m++) {
1396 int c;
1397 struct hostapd_hw_modes *mode = &results->modes[m];
1398
1399 for (c = 0; c < mode->num_channels; c++) {
1400 struct hostapd_channel_data *chan = &mode->channels[c];
1401 if ((u32) chan->freq - 10 >= start &&
1402 (u32) chan->freq + 10 <= end)
1403 chan->max_tx_power = max_eirp;
1404 }
1405 }
1406 }
1407
1408
nl80211_reg_rule_ht40(u32 start,u32 end,struct phy_info_arg * results)1409 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1410 struct phy_info_arg *results)
1411 {
1412 u16 m;
1413
1414 for (m = 0; m < *results->num_modes; m++) {
1415 if (!(results->modes[m].ht_capab &
1416 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1417 continue;
1418 nl80211_set_ht40_mode(&results->modes[m], start, end);
1419 }
1420 }
1421
1422
nl80211_reg_rule_sec(struct nlattr * tb[],struct phy_info_arg * results)1423 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1424 struct phy_info_arg *results)
1425 {
1426 u32 start, end, max_bw;
1427 u16 m;
1428
1429 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1430 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1431 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1432 return;
1433
1434 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1435 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1436 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1437
1438 if (max_bw < 20)
1439 return;
1440
1441 for (m = 0; m < *results->num_modes; m++) {
1442 if (!(results->modes[m].ht_capab &
1443 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1444 continue;
1445 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1446 }
1447 }
1448
1449
nl80211_set_vht_mode(struct hostapd_hw_modes * mode,int start,int end,int max_bw)1450 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1451 int end, int max_bw)
1452 {
1453 int c;
1454
1455 for (c = 0; c < mode->num_channels; c++) {
1456 struct hostapd_channel_data *chan = &mode->channels[c];
1457 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1458 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1459
1460 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1461 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1462
1463 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1464 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1465
1466 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1467 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1468
1469 if (max_bw >= 160) {
1470 if (chan->freq - 10 >= start && chan->freq + 150 <= end)
1471 chan->flag |= HOSTAPD_CHAN_VHT_10_150;
1472
1473 if (chan->freq - 30 >= start && chan->freq + 130 <= end)
1474 chan->flag |= HOSTAPD_CHAN_VHT_30_130;
1475
1476 if (chan->freq - 50 >= start && chan->freq + 110 <= end)
1477 chan->flag |= HOSTAPD_CHAN_VHT_50_110;
1478
1479 if (chan->freq - 70 >= start && chan->freq + 90 <= end)
1480 chan->flag |= HOSTAPD_CHAN_VHT_70_90;
1481
1482 if (chan->freq - 90 >= start && chan->freq + 70 <= end)
1483 chan->flag |= HOSTAPD_CHAN_VHT_90_70;
1484
1485 if (chan->freq - 110 >= start && chan->freq + 50 <= end)
1486 chan->flag |= HOSTAPD_CHAN_VHT_110_50;
1487
1488 if (chan->freq - 130 >= start && chan->freq + 30 <= end)
1489 chan->flag |= HOSTAPD_CHAN_VHT_130_30;
1490
1491 if (chan->freq - 150 >= start && chan->freq + 10 <= end)
1492 chan->flag |= HOSTAPD_CHAN_VHT_150_10;
1493 }
1494 }
1495 }
1496
1497
nl80211_reg_rule_vht(struct nlattr * tb[],struct phy_info_arg * results)1498 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1499 struct phy_info_arg *results)
1500 {
1501 u32 start, end, max_bw;
1502 u16 m;
1503
1504 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1505 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1506 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1507 return;
1508
1509 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1510 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1511 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1512
1513 if (max_bw < 80)
1514 return;
1515
1516 for (m = 0; m < *results->num_modes; m++) {
1517 if (!(results->modes[m].ht_capab &
1518 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1519 continue;
1520 /* TODO: use a real VHT support indication */
1521 if (!results->modes[m].vht_capab)
1522 continue;
1523
1524 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw);
1525 }
1526 }
1527
1528
dfs_domain_name(enum nl80211_dfs_regions region)1529 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1530 {
1531 switch (region) {
1532 case NL80211_DFS_UNSET:
1533 return "DFS-UNSET";
1534 case NL80211_DFS_FCC:
1535 return "DFS-FCC";
1536 case NL80211_DFS_ETSI:
1537 return "DFS-ETSI";
1538 case NL80211_DFS_JP:
1539 return "DFS-JP";
1540 default:
1541 return "DFS-invalid";
1542 }
1543 }
1544
1545
nl80211_get_reg(struct nl_msg * msg,void * arg)1546 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1547 {
1548 struct phy_info_arg *results = arg;
1549 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1550 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1551 struct nlattr *nl_rule;
1552 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1553 int rem_rule;
1554 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1555 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1556 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1557 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1558 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1559 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1560 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1561 };
1562
1563 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1564 genlmsg_attrlen(gnlh, 0), NULL);
1565 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1566 !tb_msg[NL80211_ATTR_REG_RULES]) {
1567 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1568 "available");
1569 return NL_SKIP;
1570 }
1571
1572 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1573 enum nl80211_dfs_regions dfs_domain;
1574 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1575 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1576 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1577 dfs_domain_name(dfs_domain));
1578 } else {
1579 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1580 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1581 }
1582
1583 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1584 {
1585 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1586 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1587 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1588 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1589 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1590 continue;
1591 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1592 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1593 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1594 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1595 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1596 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1597 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1598 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1599
1600 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1601 start, end, max_bw, max_eirp,
1602 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1603 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1604 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1605 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1606 "",
1607 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1608 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1609 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1610 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1611 if (max_bw >= 40)
1612 nl80211_reg_rule_ht40(start, end, results);
1613 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1614 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1615 results);
1616 }
1617
1618 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1619 {
1620 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1621 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1622 nl80211_reg_rule_sec(tb_rule, results);
1623 }
1624
1625 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1626 {
1627 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1628 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1629 nl80211_reg_rule_vht(tb_rule, results);
1630 }
1631
1632 return NL_SKIP;
1633 }
1634
1635
nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data * drv,struct phy_info_arg * results)1636 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1637 struct phy_info_arg *results)
1638 {
1639 struct nl_msg *msg;
1640
1641 msg = nlmsg_alloc();
1642 if (!msg)
1643 return -ENOMEM;
1644
1645 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1646 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1647 }
1648
1649
1650 struct hostapd_hw_modes *
nl80211_get_hw_feature_data(void * priv,u16 * num_modes,u16 * flags)1651 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1652 {
1653 u32 feat;
1654 struct i802_bss *bss = priv;
1655 struct wpa_driver_nl80211_data *drv = bss->drv;
1656 int nl_flags = 0;
1657 struct nl_msg *msg;
1658 struct phy_info_arg result = {
1659 .num_modes = num_modes,
1660 .modes = NULL,
1661 .last_mode = -1,
1662 .failed = 0,
1663 };
1664
1665 *num_modes = 0;
1666 *flags = 0;
1667
1668 feat = get_nl80211_protocol_features(drv);
1669 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
1670 nl_flags = NLM_F_DUMP;
1671 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1672 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
1673 nlmsg_free(msg);
1674 return NULL;
1675 }
1676
1677 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1678 nl80211_set_regulatory_flags(drv, &result);
1679 if (result.failed) {
1680 int i;
1681
1682 for (i = 0; result.modes && i < *num_modes; i++) {
1683 os_free(result.modes[i].channels);
1684 os_free(result.modes[i].rates);
1685 }
1686 os_free(result.modes);
1687 return NULL;
1688 }
1689 return wpa_driver_nl80211_postprocess_modes(result.modes,
1690 num_modes);
1691 }
1692
1693 return NULL;
1694 }
1695