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 info->flags = nla_data(attr);
824 info->flags_len = nla_len(attr);
825 }
826 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_CONCURRENCY_CAPA];
827 if (attr)
828 info->capa->conc_capab = nla_get_u32(attr);
829
830 attr = tb_vendor[
831 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND];
832 if (attr)
833 info->capa->max_conc_chan_2_4 = nla_get_u32(attr);
834
835 attr = tb_vendor[
836 QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND];
837 if (attr)
838 info->capa->max_conc_chan_5_0 = nla_get_u32(attr);
839 }
840
841 return NL_SKIP;
842 }
843
844
check_feature(enum qca_wlan_vendor_features feature,struct features_info * info)845 static int check_feature(enum qca_wlan_vendor_features feature,
846 struct features_info *info)
847 {
848 size_t idx = feature / 8;
849
850 return (idx < info->flags_len) &&
851 (info->flags[idx] & BIT(feature % 8));
852 }
853
854
qca_nl80211_get_features(struct wpa_driver_nl80211_data * drv)855 static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
856 {
857 struct nl_msg *msg;
858 struct features_info info;
859 int ret;
860
861 if (!drv->get_features_vendor_cmd_avail)
862 return;
863
864 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
865 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
866 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
867 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
868 nlmsg_free(msg);
869 return;
870 }
871
872 os_memset(&info, 0, sizeof(info));
873 info.capa = &drv->capa;
874 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
875 if (ret || !info.flags)
876 return;
877
878 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
879 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
880
881 if (check_feature(QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY, &info))
882 drv->capa.flags |= WPA_DRIVER_FLAGS_SUPPORT_HW_MODE_ANY;
883
884 if (check_feature(QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS,
885 &info))
886 drv->capa.flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
887 }
888
889 #endif /* CONFIG_DRIVER_NL80211_QCA */
890
891
wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data * drv)892 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
893 {
894 struct wiphy_info_data info;
895 if (wpa_driver_nl80211_get_info(drv, &info))
896 return -1;
897
898 if (info.error)
899 return -1;
900
901 drv->has_capability = 1;
902 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
903 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
904 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
905 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK |
906 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B |
907 WPA_DRIVER_CAPA_KEY_MGMT_SUITE_B_192;
908 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
909 WPA_DRIVER_AUTH_SHARED |
910 WPA_DRIVER_AUTH_LEAP;
911
912 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
913 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
914 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
915
916 /*
917 * As all cfg80211 drivers must support cases where the AP interface is
918 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
919 * case that the user space daemon has crashed, they must be able to
920 * cleanup all stations and key entries in the AP tear down flow. Thus,
921 * this flag can/should always be set for cfg80211 drivers.
922 */
923 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
924
925 if (!info.device_ap_sme) {
926 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
927
928 /*
929 * No AP SME is currently assumed to also indicate no AP MLME
930 * in the driver/firmware.
931 */
932 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
933 }
934
935 drv->device_ap_sme = info.device_ap_sme;
936 drv->poll_command_supported = info.poll_command_supported;
937 drv->data_tx_status = info.data_tx_status;
938 drv->p2p_go_ctwindow_supported = info.p2p_go_ctwindow_supported;
939 if (info.set_qos_map_supported)
940 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
941 drv->have_low_prio_scan = info.have_low_prio_scan;
942
943 /*
944 * If poll command and tx status are supported, mac80211 is new enough
945 * to have everything we need to not need monitor interfaces.
946 */
947 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
948
949 if (drv->device_ap_sme && drv->use_monitor) {
950 /*
951 * Non-mac80211 drivers may not support monitor interface.
952 * Make sure we do not get stuck with incorrect capability here
953 * by explicitly testing this.
954 */
955 if (!info.monitor_supported) {
956 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
957 "with device_ap_sme since no monitor mode "
958 "support detected");
959 drv->use_monitor = 0;
960 }
961 }
962
963 /*
964 * If we aren't going to use monitor interfaces, but the
965 * driver doesn't support data TX status, we won't get TX
966 * status for EAPOL frames.
967 */
968 if (!drv->use_monitor && !info.data_tx_status)
969 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
970
971 #ifdef CONFIG_DRIVER_NL80211_QCA
972 qca_nl80211_check_dfs_capa(drv);
973 qca_nl80211_get_features(drv);
974
975 /*
976 * To enable offchannel simultaneous support in wpa_supplicant, the
977 * underlying driver needs to support the same along with offchannel TX.
978 * Offchannel TX support is needed since remain_on_channel and
979 * action_tx use some common data structures and hence cannot be
980 * scheduled simultaneously.
981 */
982 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
983 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_SIMULTANEOUS;
984 #endif /* CONFIG_DRIVER_NL80211_QCA */
985
986 return 0;
987 }
988
989
990 struct phy_info_arg {
991 u16 *num_modes;
992 struct hostapd_hw_modes *modes;
993 int last_mode, last_chan_idx;
994 int failed;
995 };
996
phy_info_ht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * ampdu_factor,struct nlattr * ampdu_density,struct nlattr * mcs_set)997 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
998 struct nlattr *ampdu_factor,
999 struct nlattr *ampdu_density,
1000 struct nlattr *mcs_set)
1001 {
1002 if (capa)
1003 mode->ht_capab = nla_get_u16(capa);
1004
1005 if (ampdu_factor)
1006 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
1007
1008 if (ampdu_density)
1009 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
1010
1011 if (mcs_set && nla_len(mcs_set) >= 16) {
1012 u8 *mcs;
1013 mcs = nla_data(mcs_set);
1014 os_memcpy(mode->mcs_set, mcs, 16);
1015 }
1016 }
1017
1018
phy_info_vht_capa(struct hostapd_hw_modes * mode,struct nlattr * capa,struct nlattr * mcs_set)1019 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
1020 struct nlattr *capa,
1021 struct nlattr *mcs_set)
1022 {
1023 if (capa)
1024 mode->vht_capab = nla_get_u32(capa);
1025
1026 if (mcs_set && nla_len(mcs_set) >= 8) {
1027 u8 *mcs;
1028 mcs = nla_data(mcs_set);
1029 os_memcpy(mode->vht_mcs_set, mcs, 8);
1030 }
1031 }
1032
1033
phy_info_freq(struct hostapd_hw_modes * mode,struct hostapd_channel_data * chan,struct nlattr * tb_freq[])1034 static void phy_info_freq(struct hostapd_hw_modes *mode,
1035 struct hostapd_channel_data *chan,
1036 struct nlattr *tb_freq[])
1037 {
1038 u8 channel;
1039 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1040 chan->flag = 0;
1041 chan->dfs_cac_ms = 0;
1042 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
1043 chan->chan = channel;
1044
1045 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1046 chan->flag |= HOSTAPD_CHAN_DISABLED;
1047 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
1048 chan->flag |= HOSTAPD_CHAN_NO_IR;
1049 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1050 chan->flag |= HOSTAPD_CHAN_RADAR;
1051 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
1052 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
1053 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
1054 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
1055
1056 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
1057 enum nl80211_dfs_state state =
1058 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
1059
1060 switch (state) {
1061 case NL80211_DFS_USABLE:
1062 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
1063 break;
1064 case NL80211_DFS_AVAILABLE:
1065 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
1066 break;
1067 case NL80211_DFS_UNAVAILABLE:
1068 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
1069 break;
1070 }
1071 }
1072
1073 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
1074 chan->dfs_cac_ms = nla_get_u32(
1075 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
1076 }
1077 }
1078
1079
phy_info_freqs(struct phy_info_arg * phy_info,struct hostapd_hw_modes * mode,struct nlattr * tb)1080 static int phy_info_freqs(struct phy_info_arg *phy_info,
1081 struct hostapd_hw_modes *mode, struct nlattr *tb)
1082 {
1083 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1084 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1085 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1086 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
1087 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1088 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1089 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
1090 };
1091 int new_channels = 0;
1092 struct hostapd_channel_data *channel;
1093 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1094 struct nlattr *nl_freq;
1095 int rem_freq, idx;
1096
1097 if (tb == NULL)
1098 return NL_OK;
1099
1100 nla_for_each_nested(nl_freq, tb, rem_freq) {
1101 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1102 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1103 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1104 continue;
1105 new_channels++;
1106 }
1107
1108 channel = os_realloc_array(mode->channels,
1109 mode->num_channels + new_channels,
1110 sizeof(struct hostapd_channel_data));
1111 if (!channel)
1112 return NL_STOP;
1113
1114 mode->channels = channel;
1115 mode->num_channels += new_channels;
1116
1117 idx = phy_info->last_chan_idx;
1118
1119 nla_for_each_nested(nl_freq, tb, rem_freq) {
1120 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
1121 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
1122 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1123 continue;
1124 phy_info_freq(mode, &mode->channels[idx], tb_freq);
1125 idx++;
1126 }
1127 phy_info->last_chan_idx = idx;
1128
1129 return NL_OK;
1130 }
1131
1132
phy_info_rates(struct hostapd_hw_modes * mode,struct nlattr * tb)1133 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1134 {
1135 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1136 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1137 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1138 { .type = NLA_FLAG },
1139 };
1140 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1141 struct nlattr *nl_rate;
1142 int rem_rate, idx;
1143
1144 if (tb == NULL)
1145 return NL_OK;
1146
1147 nla_for_each_nested(nl_rate, tb, rem_rate) {
1148 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1149 nla_data(nl_rate), nla_len(nl_rate),
1150 rate_policy);
1151 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1152 continue;
1153 mode->num_rates++;
1154 }
1155
1156 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1157 if (!mode->rates)
1158 return NL_STOP;
1159
1160 idx = 0;
1161
1162 nla_for_each_nested(nl_rate, tb, rem_rate) {
1163 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1164 nla_data(nl_rate), nla_len(nl_rate),
1165 rate_policy);
1166 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1167 continue;
1168 mode->rates[idx] = nla_get_u32(
1169 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1170 idx++;
1171 }
1172
1173 return NL_OK;
1174 }
1175
1176
phy_info_band(struct phy_info_arg * phy_info,struct nlattr * nl_band)1177 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1178 {
1179 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1180 struct hostapd_hw_modes *mode;
1181 int ret;
1182
1183 if (phy_info->last_mode != nl_band->nla_type) {
1184 mode = os_realloc_array(phy_info->modes,
1185 *phy_info->num_modes + 1,
1186 sizeof(*mode));
1187 if (!mode) {
1188 phy_info->failed = 1;
1189 return NL_STOP;
1190 }
1191 phy_info->modes = mode;
1192
1193 mode = &phy_info->modes[*(phy_info->num_modes)];
1194 os_memset(mode, 0, sizeof(*mode));
1195 mode->mode = NUM_HOSTAPD_MODES;
1196 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1197 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1198
1199 /*
1200 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1201 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1202 * possible streams as unsupported. This will be overridden if
1203 * driver advertises VHT support.
1204 */
1205 mode->vht_mcs_set[0] = 0xff;
1206 mode->vht_mcs_set[1] = 0xff;
1207 mode->vht_mcs_set[4] = 0xff;
1208 mode->vht_mcs_set[5] = 0xff;
1209
1210 *(phy_info->num_modes) += 1;
1211 phy_info->last_mode = nl_band->nla_type;
1212 phy_info->last_chan_idx = 0;
1213 } else
1214 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1215
1216 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1217 nla_len(nl_band), NULL);
1218
1219 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1220 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1221 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1222 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1223 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1224 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1225 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1226 if (ret == NL_OK)
1227 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1228 if (ret != NL_OK) {
1229 phy_info->failed = 1;
1230 return ret;
1231 }
1232
1233 return NL_OK;
1234 }
1235
1236
phy_info_handler(struct nl_msg * msg,void * arg)1237 static int phy_info_handler(struct nl_msg *msg, void *arg)
1238 {
1239 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1241 struct phy_info_arg *phy_info = arg;
1242 struct nlattr *nl_band;
1243 int rem_band;
1244
1245 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1246 genlmsg_attrlen(gnlh, 0), NULL);
1247
1248 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1249 return NL_SKIP;
1250
1251 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1252 {
1253 int res = phy_info_band(phy_info, nl_band);
1254 if (res != NL_OK)
1255 return res;
1256 }
1257
1258 return NL_SKIP;
1259 }
1260
1261
1262 static struct hostapd_hw_modes *
wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes * modes,u16 * num_modes)1263 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1264 u16 *num_modes)
1265 {
1266 u16 m;
1267 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1268 int i, mode11g_idx = -1;
1269
1270 /* heuristic to set up modes */
1271 for (m = 0; m < *num_modes; m++) {
1272 if (!modes[m].num_channels)
1273 continue;
1274 if (modes[m].channels[0].freq < 4000) {
1275 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1276 for (i = 0; i < modes[m].num_rates; i++) {
1277 if (modes[m].rates[i] > 200) {
1278 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1279 break;
1280 }
1281 }
1282 } else if (modes[m].channels[0].freq > 50000)
1283 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1284 else
1285 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1286 }
1287
1288 /* If only 802.11g mode is included, use it to construct matching
1289 * 802.11b mode data. */
1290
1291 for (m = 0; m < *num_modes; m++) {
1292 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1293 return modes; /* 802.11b already included */
1294 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1295 mode11g_idx = m;
1296 }
1297
1298 if (mode11g_idx < 0)
1299 return modes; /* 2.4 GHz band not supported at all */
1300
1301 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1302 if (nmodes == NULL)
1303 return modes; /* Could not add 802.11b mode */
1304
1305 mode = &nmodes[*num_modes];
1306 os_memset(mode, 0, sizeof(*mode));
1307 (*num_modes)++;
1308 modes = nmodes;
1309
1310 mode->mode = HOSTAPD_MODE_IEEE80211B;
1311
1312 mode11g = &modes[mode11g_idx];
1313 mode->num_channels = mode11g->num_channels;
1314 mode->channels = os_malloc(mode11g->num_channels *
1315 sizeof(struct hostapd_channel_data));
1316 if (mode->channels == NULL) {
1317 (*num_modes)--;
1318 return modes; /* Could not add 802.11b mode */
1319 }
1320 os_memcpy(mode->channels, mode11g->channels,
1321 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1322
1323 mode->num_rates = 0;
1324 mode->rates = os_malloc(4 * sizeof(int));
1325 if (mode->rates == NULL) {
1326 os_free(mode->channels);
1327 (*num_modes)--;
1328 return modes; /* Could not add 802.11b mode */
1329 }
1330
1331 for (i = 0; i < mode11g->num_rates; i++) {
1332 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1333 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1334 continue;
1335 mode->rates[mode->num_rates] = mode11g->rates[i];
1336 mode->num_rates++;
1337 if (mode->num_rates == 4)
1338 break;
1339 }
1340
1341 if (mode->num_rates == 0) {
1342 os_free(mode->channels);
1343 os_free(mode->rates);
1344 (*num_modes)--;
1345 return modes; /* No 802.11b rates */
1346 }
1347
1348 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1349 "information");
1350
1351 return modes;
1352 }
1353
1354
nl80211_set_ht40_mode(struct hostapd_hw_modes * mode,int start,int end)1355 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1356 int end)
1357 {
1358 int c;
1359
1360 for (c = 0; c < mode->num_channels; c++) {
1361 struct hostapd_channel_data *chan = &mode->channels[c];
1362 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1363 chan->flag |= HOSTAPD_CHAN_HT40;
1364 }
1365 }
1366
1367
nl80211_set_ht40_mode_sec(struct hostapd_hw_modes * mode,int start,int end)1368 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1369 int end)
1370 {
1371 int c;
1372
1373 for (c = 0; c < mode->num_channels; c++) {
1374 struct hostapd_channel_data *chan = &mode->channels[c];
1375 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1376 continue;
1377 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1378 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1379 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1380 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1381 }
1382 }
1383
1384
nl80211_reg_rule_max_eirp(u32 start,u32 end,u32 max_eirp,struct phy_info_arg * results)1385 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1386 struct phy_info_arg *results)
1387 {
1388 u16 m;
1389
1390 for (m = 0; m < *results->num_modes; m++) {
1391 int c;
1392 struct hostapd_hw_modes *mode = &results->modes[m];
1393
1394 for (c = 0; c < mode->num_channels; c++) {
1395 struct hostapd_channel_data *chan = &mode->channels[c];
1396 if ((u32) chan->freq - 10 >= start &&
1397 (u32) chan->freq + 10 <= end)
1398 chan->max_tx_power = max_eirp;
1399 }
1400 }
1401 }
1402
1403
nl80211_reg_rule_ht40(u32 start,u32 end,struct phy_info_arg * results)1404 static void nl80211_reg_rule_ht40(u32 start, u32 end,
1405 struct phy_info_arg *results)
1406 {
1407 u16 m;
1408
1409 for (m = 0; m < *results->num_modes; m++) {
1410 if (!(results->modes[m].ht_capab &
1411 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1412 continue;
1413 nl80211_set_ht40_mode(&results->modes[m], start, end);
1414 }
1415 }
1416
1417
nl80211_reg_rule_sec(struct nlattr * tb[],struct phy_info_arg * results)1418 static void nl80211_reg_rule_sec(struct nlattr *tb[],
1419 struct phy_info_arg *results)
1420 {
1421 u32 start, end, max_bw;
1422 u16 m;
1423
1424 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1425 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1426 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1427 return;
1428
1429 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1430 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1431 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1432
1433 if (max_bw < 20)
1434 return;
1435
1436 for (m = 0; m < *results->num_modes; m++) {
1437 if (!(results->modes[m].ht_capab &
1438 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1439 continue;
1440 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1441 }
1442 }
1443
1444
nl80211_set_vht_mode(struct hostapd_hw_modes * mode,int start,int end,int max_bw)1445 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1446 int end, int max_bw)
1447 {
1448 int c;
1449
1450 for (c = 0; c < mode->num_channels; c++) {
1451 struct hostapd_channel_data *chan = &mode->channels[c];
1452 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1453 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1454
1455 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1456 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1457
1458 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1459 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1460
1461 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1462 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1463
1464 if (max_bw >= 160) {
1465 if (chan->freq - 10 >= start && chan->freq + 150 <= end)
1466 chan->flag |= HOSTAPD_CHAN_VHT_10_150;
1467
1468 if (chan->freq - 30 >= start && chan->freq + 130 <= end)
1469 chan->flag |= HOSTAPD_CHAN_VHT_30_130;
1470
1471 if (chan->freq - 50 >= start && chan->freq + 110 <= end)
1472 chan->flag |= HOSTAPD_CHAN_VHT_50_110;
1473
1474 if (chan->freq - 70 >= start && chan->freq + 90 <= end)
1475 chan->flag |= HOSTAPD_CHAN_VHT_70_90;
1476
1477 if (chan->freq - 90 >= start && chan->freq + 70 <= end)
1478 chan->flag |= HOSTAPD_CHAN_VHT_90_70;
1479
1480 if (chan->freq - 110 >= start && chan->freq + 50 <= end)
1481 chan->flag |= HOSTAPD_CHAN_VHT_110_50;
1482
1483 if (chan->freq - 130 >= start && chan->freq + 30 <= end)
1484 chan->flag |= HOSTAPD_CHAN_VHT_130_30;
1485
1486 if (chan->freq - 150 >= start && chan->freq + 10 <= end)
1487 chan->flag |= HOSTAPD_CHAN_VHT_150_10;
1488 }
1489 }
1490 }
1491
1492
nl80211_reg_rule_vht(struct nlattr * tb[],struct phy_info_arg * results)1493 static void nl80211_reg_rule_vht(struct nlattr *tb[],
1494 struct phy_info_arg *results)
1495 {
1496 u32 start, end, max_bw;
1497 u16 m;
1498
1499 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1500 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1501 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1502 return;
1503
1504 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1505 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1506 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1507
1508 if (max_bw < 80)
1509 return;
1510
1511 for (m = 0; m < *results->num_modes; m++) {
1512 if (!(results->modes[m].ht_capab &
1513 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1514 continue;
1515 /* TODO: use a real VHT support indication */
1516 if (!results->modes[m].vht_capab)
1517 continue;
1518
1519 nl80211_set_vht_mode(&results->modes[m], start, end, max_bw);
1520 }
1521 }
1522
1523
dfs_domain_name(enum nl80211_dfs_regions region)1524 static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1525 {
1526 switch (region) {
1527 case NL80211_DFS_UNSET:
1528 return "DFS-UNSET";
1529 case NL80211_DFS_FCC:
1530 return "DFS-FCC";
1531 case NL80211_DFS_ETSI:
1532 return "DFS-ETSI";
1533 case NL80211_DFS_JP:
1534 return "DFS-JP";
1535 default:
1536 return "DFS-invalid";
1537 }
1538 }
1539
1540
nl80211_get_reg(struct nl_msg * msg,void * arg)1541 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1542 {
1543 struct phy_info_arg *results = arg;
1544 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1545 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1546 struct nlattr *nl_rule;
1547 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1548 int rem_rule;
1549 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1550 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1551 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1552 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1553 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1554 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1555 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1556 };
1557
1558 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1559 genlmsg_attrlen(gnlh, 0), NULL);
1560 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1561 !tb_msg[NL80211_ATTR_REG_RULES]) {
1562 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1563 "available");
1564 return NL_SKIP;
1565 }
1566
1567 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1568 enum nl80211_dfs_regions dfs_domain;
1569 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1570 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1571 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1572 dfs_domain_name(dfs_domain));
1573 } else {
1574 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1575 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1576 }
1577
1578 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1579 {
1580 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1581 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1582 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1583 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1584 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1585 continue;
1586 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1587 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1588 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1589 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1590 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1591 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1592 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1593 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1594
1595 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1596 start, end, max_bw, max_eirp,
1597 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1598 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1599 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1600 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1601 "",
1602 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1603 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1604 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1605 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1606 if (max_bw >= 40)
1607 nl80211_reg_rule_ht40(start, end, results);
1608 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1609 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1610 results);
1611 }
1612
1613 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1614 {
1615 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1616 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1617 nl80211_reg_rule_sec(tb_rule, results);
1618 }
1619
1620 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1621 {
1622 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1623 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1624 nl80211_reg_rule_vht(tb_rule, results);
1625 }
1626
1627 return NL_SKIP;
1628 }
1629
1630
nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data * drv,struct phy_info_arg * results)1631 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1632 struct phy_info_arg *results)
1633 {
1634 struct nl_msg *msg;
1635
1636 msg = nlmsg_alloc();
1637 if (!msg)
1638 return -ENOMEM;
1639
1640 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1641 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1642 }
1643
1644
1645 struct hostapd_hw_modes *
nl80211_get_hw_feature_data(void * priv,u16 * num_modes,u16 * flags)1646 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1647 {
1648 u32 feat;
1649 struct i802_bss *bss = priv;
1650 struct wpa_driver_nl80211_data *drv = bss->drv;
1651 int nl_flags = 0;
1652 struct nl_msg *msg;
1653 struct phy_info_arg result = {
1654 .num_modes = num_modes,
1655 .modes = NULL,
1656 .last_mode = -1,
1657 .failed = 0,
1658 };
1659
1660 *num_modes = 0;
1661 *flags = 0;
1662
1663 feat = get_nl80211_protocol_features(drv);
1664 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
1665 nl_flags = NLM_F_DUMP;
1666 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1667 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
1668 nlmsg_free(msg);
1669 return NULL;
1670 }
1671
1672 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1673 nl80211_set_regulatory_flags(drv, &result);
1674 if (result.failed) {
1675 int i;
1676
1677 for (i = 0; result.modes && i < *num_modes; i++) {
1678 os_free(result.modes[i].channels);
1679 os_free(result.modes[i].rates);
1680 }
1681 os_free(result.modes);
1682 return NULL;
1683 }
1684 return wpa_driver_nl80211_postprocess_modes(result.modes,
1685 num_modes);
1686 }
1687
1688 return NULL;
1689 }
1690