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[thirdparty/hostap.git] / src / drivers / driver_nl80211_capa.c
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0fafeb54
JM		 1/*
2 * Driver interaction with Linux nl80211/cfg80211 - Capabilities
3 * Copyright (c) 2002-2014, 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
22static 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
38static 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)
9589a91e
JM		 45 return 0;
46
47 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES)) {
48 nlmsg_free(msg);
49 return 0;
50 }
0fafeb54 51
0fafeb54
JM		 52 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
53 return feat;
54
0fafeb54
JM		 55 return 0;
56}
57
58
59struct 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_concurrent:1;
75 unsigned int channel_switch_supported:1;
76 unsigned int set_qos_map_supported:1;
77 unsigned int have_low_prio_scan:1;
dfa87878 78 unsigned int wmm_ac_supported:1;
86056fea
IP		 79 unsigned int mac_addr_rand_scan_supported:1;
80 unsigned int mac_addr_rand_sched_scan_supported:1;
0fafeb54
JM		 81};
82
83
84static unsigned int probe_resp_offload_support(int supp_protocols)
85{
86 unsigned int prot = 0;
87
88 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
89 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
90 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
91 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
92 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
93 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
94 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
95 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
96
97 return prot;
98}
99
100
101static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
102 struct nlattr *tb)
103{
104 struct nlattr *nl_mode;
105 int i;
106
107 if (tb == NULL)
108 return;
109
110 nla_for_each_nested(nl_mode, tb, i) {
111 switch (nla_type(nl_mode)) {
112 case NL80211_IFTYPE_AP:
113 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
114 break;
115 case NL80211_IFTYPE_MESH_POINT:
116 info->capa->flags |= WPA_DRIVER_FLAGS_MESH;
117 break;
118 case NL80211_IFTYPE_ADHOC:
119 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
120 break;
121 case NL80211_IFTYPE_P2P_DEVICE:
122 info->capa->flags |=
123 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
124 break;
125 case NL80211_IFTYPE_P2P_GO:
126 info->p2p_go_supported = 1;
127 break;
128 case NL80211_IFTYPE_P2P_CLIENT:
129 info->p2p_client_supported = 1;
130 break;
131 case NL80211_IFTYPE_MONITOR:
132 info->monitor_supported = 1;
133 break;
134 }
135 }
136}
137
138
139static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
140 struct nlattr *nl_combi)
141{
142 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
143 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
144 struct nlattr *nl_limit, *nl_mode;
145 int err, rem_limit, rem_mode;
146 int combination_has_p2p = 0, combination_has_mgd = 0;
147 static struct nla_policy
148 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
149 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
150 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
151 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
152 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
153 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
154 },
155 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
156 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
157 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
158 };
159
160 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
161 nl_combi, iface_combination_policy);
162 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
163 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
164 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
165 return 0; /* broken combination */
166
167 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
168 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
169
170 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
171 rem_limit) {
172 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
173 nl_limit, iface_limit_policy);
174 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
175 return 0; /* broken combination */
176
177 nla_for_each_nested(nl_mode,
178 tb_limit[NL80211_IFACE_LIMIT_TYPES],
179 rem_mode) {
180 int ift = nla_type(nl_mode);
181 if (ift == NL80211_IFTYPE_P2P_GO ||
182 ift == NL80211_IFTYPE_P2P_CLIENT)
183 combination_has_p2p = 1;
184 if (ift == NL80211_IFTYPE_STATION)
185 combination_has_mgd = 1;
186 }
187 if (combination_has_p2p && combination_has_mgd)
188 break;
189 }
190
191 if (combination_has_p2p && combination_has_mgd) {
192 unsigned int num_channels =
193 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
194
195 info->p2p_concurrent = 1;
196 if (info->num_multichan_concurrent < num_channels)
197 info->num_multichan_concurrent = num_channels;
198 }
199
200 return 0;
201}
202
203
204static void wiphy_info_iface_comb(struct wiphy_info_data *info,
205 struct nlattr *tb)
206{
207 struct nlattr *nl_combi;
208 int rem_combi;
209
210 if (tb == NULL)
211 return;
212
213 nla_for_each_nested(nl_combi, tb, rem_combi) {
214 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
215 break;
216 }
217}
218
219
220static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
221 struct nlattr *tb)
222{
223 struct nlattr *nl_cmd;
224 int i;
225
226 if (tb == NULL)
227 return;
228
229 nla_for_each_nested(nl_cmd, tb, i) {
230 switch (nla_get_u32(nl_cmd)) {
231 case NL80211_CMD_AUTHENTICATE:
232 info->auth_supported = 1;
233 break;
234 case NL80211_CMD_CONNECT:
235 info->connect_supported = 1;
236 break;
237 case NL80211_CMD_START_SCHED_SCAN:
238 info->capa->sched_scan_supported = 1;
239 break;
240 case NL80211_CMD_PROBE_CLIENT:
241 info->poll_command_supported = 1;
242 break;
243 case NL80211_CMD_CHANNEL_SWITCH:
244 info->channel_switch_supported = 1;
245 break;
246 case NL80211_CMD_SET_QOS_MAP:
247 info->set_qos_map_supported = 1;
248 break;
249 }
250 }
251}
252
253
254static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
255 struct nlattr *tb)
256{
257 int i, num;
258 u32 *ciphers;
259
260 if (tb == NULL)
261 return;
262
263 num = nla_len(tb) / sizeof(u32);
264 ciphers = nla_data(tb);
265 for (i = 0; i < num; i++) {
266 u32 c = ciphers[i];
267
268 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
269 c >> 24, (c >> 16) & 0xff,
270 (c >> 8) & 0xff, c & 0xff);
271 switch (c) {
272 case WLAN_CIPHER_SUITE_CCMP_256:
273 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
274 break;
275 case WLAN_CIPHER_SUITE_GCMP_256:
276 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
277 break;
278 case WLAN_CIPHER_SUITE_CCMP:
279 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
280 break;
281 case WLAN_CIPHER_SUITE_GCMP:
282 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
283 break;
284 case WLAN_CIPHER_SUITE_TKIP:
285 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
286 break;
287 case WLAN_CIPHER_SUITE_WEP104:
288 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
289 break;
290 case WLAN_CIPHER_SUITE_WEP40:
291 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
292 break;
293 case WLAN_CIPHER_SUITE_AES_CMAC:
294 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
295 break;
296 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
297 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
298 break;
299 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
300 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
301 break;
302 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
303 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
304 break;
305 case WLAN_CIPHER_SUITE_NO_GROUP_ADDR:
306 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GTK_NOT_USED;
307 break;
308 }
309 }
310}
311
312
313static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
314 struct nlattr *tb)
315{
316 if (tb)
317 capa->max_remain_on_chan = nla_get_u32(tb);
318}
319
320
321static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
322 struct nlattr *ext_setup)
323{
324 if (tdls == NULL)
325 return;
326
327 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
328 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
329
330 if (ext_setup) {
331 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
332 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
333 }
334}
335
336
337static void wiphy_info_feature_flags(struct wiphy_info_data *info,
338 struct nlattr *tb)
339{
340 u32 flags;
341 struct wpa_driver_capa *capa = info->capa;
342
343 if (tb == NULL)
344 return;
345
346 flags = nla_get_u32(tb);
347
348 if (flags & NL80211_FEATURE_SK_TX_STATUS)
349 info->data_tx_status = 1;
350
351 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
352 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
353
354 if (flags & NL80211_FEATURE_SAE)
355 capa->flags |= WPA_DRIVER_FLAGS_SAE;
356
357 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
358 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
359
360 if (flags & NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)
361 capa->flags |= WPA_DRIVER_FLAGS_HT_2040_COEX;
362
4daa5729
AN		 363 if (flags & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) {
364 wpa_printf(MSG_DEBUG, "nl80211: TDLS channel switch");
365 capa->flags |= WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH;
366 }
367
0fafeb54
JM		 368 if (flags & NL80211_FEATURE_LOW_PRIORITY_SCAN)
369 info->have_low_prio_scan = 1;
370
86056fea
IP		 371 if (flags & NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)
372 info->mac_addr_rand_scan_supported = 1;
373
374 if (flags & NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR)
375 info->mac_addr_rand_sched_scan_supported = 1;
376
0fafeb54
JM		 377 if (flags & NL80211_FEATURE_STATIC_SMPS)
378 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_STATIC;
379
380 if (flags & NL80211_FEATURE_DYNAMIC_SMPS)
381 capa->smps_modes |= WPA_DRIVER_SMPS_MODE_DYNAMIC;
dfa87878
MB		 382
383 if (flags & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
384 info->wmm_ac_supported = 1;
58162adf
AK		 385
386 if (flags & NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES)
387 capa->rrm_flags |= WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES;
388
389 if (flags & NL80211_FEATURE_WFA_TPC_IE_IN_PROBES)
390 capa->rrm_flags |= WPA_DRIVER_FLAGS_WFA_TPC_IE_IN_PROBES;
391
392 if (flags & NL80211_FEATURE_QUIET)
393 capa->rrm_flags |= WPA_DRIVER_FLAGS_QUIET;
394
395 if (flags & NL80211_FEATURE_TX_POWER_INSERTION)
396 capa->rrm_flags |= WPA_DRIVER_FLAGS_TX_POWER_INSERTION;
1830817e
JD		 397
398 if (flags & NL80211_FEATURE_HT_IBSS)
399 capa->flags |= WPA_DRIVER_FLAGS_HT_IBSS;
0fafeb54
JM		 400}
401
402
403static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
404 struct nlattr *tb)
405{
406 u32 protocols;
407
408 if (tb == NULL)
409 return;
410
411 protocols = nla_get_u32(tb);
412 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
413 "mode");
414 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
415 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
416}
417
418
419static void wiphy_info_wowlan_triggers(struct wpa_driver_capa *capa,
420 struct nlattr *tb)
421{
422 struct nlattr *triggers[MAX_NL80211_WOWLAN_TRIG + 1];
423
424 if (tb == NULL)
425 return;
426
427 if (nla_parse_nested(triggers, MAX_NL80211_WOWLAN_TRIG,
428 tb, NULL))
429 return;
430
431 if (triggers[NL80211_WOWLAN_TRIG_ANY])
432 capa->wowlan_triggers.any = 1;
433 if (triggers[NL80211_WOWLAN_TRIG_DISCONNECT])
434 capa->wowlan_triggers.disconnect = 1;
435 if (triggers[NL80211_WOWLAN_TRIG_MAGIC_PKT])
436 capa->wowlan_triggers.magic_pkt = 1;
437 if (triggers[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE])
438 capa->wowlan_triggers.gtk_rekey_failure = 1;
439 if (triggers[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST])
440 capa->wowlan_triggers.eap_identity_req = 1;
441 if (triggers[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE])
442 capa->wowlan_triggers.four_way_handshake = 1;
443 if (triggers[NL80211_WOWLAN_TRIG_RFKILL_RELEASE])
444 capa->wowlan_triggers.rfkill_release = 1;
445}
446
447
448static int wiphy_info_handler(struct nl_msg *msg, void *arg)
449{
450 struct nlattr *tb[NL80211_ATTR_MAX + 1];
451 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
452 struct wiphy_info_data *info = arg;
453 struct wpa_driver_capa *capa = info->capa;
454 struct wpa_driver_nl80211_data *drv = info->drv;
455
456 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
457 genlmsg_attrlen(gnlh, 0), NULL);
458
459 if (tb[NL80211_ATTR_WIPHY_NAME])
460 os_strlcpy(drv->phyname,
461 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
462 sizeof(drv->phyname));
463 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
464 capa->max_scan_ssids =
465 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
466
467 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
468 capa->max_sched_scan_ssids =
469 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
470
471 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
472 capa->max_match_sets =
473 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
474
475 if (tb[NL80211_ATTR_MAC_ACL_MAX])
476 capa->max_acl_mac_addrs =
477 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
478
479 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
480 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
481 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
482 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
483
484 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
485 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
486 "off-channel TX");
487 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
488 }
489
490 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
491 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
492 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
493 }
494
495 wiphy_info_max_roc(capa,
496 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
497
498 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
499 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
500
501 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
502 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
503
504 if (tb[NL80211_ATTR_DEVICE_AP_SME])
505 info->device_ap_sme = 1;
506
507 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
508 wiphy_info_probe_resp_offload(capa,
509 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
510
511 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
512 drv->extended_capa == NULL) {
513 drv->extended_capa =
514 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
515 if (drv->extended_capa) {
516 os_memcpy(drv->extended_capa,
517 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
518 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
519 drv->extended_capa_len =
520 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
521 }
522 drv->extended_capa_mask =
7b7b4449 523 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
0fafeb54
JM		 524 if (drv->extended_capa_mask) {
525 os_memcpy(drv->extended_capa_mask,
7b7b4449
LC		 526 nla_data(tb[NL80211_ATTR_EXT_CAPA_MASK]),
527 nla_len(tb[NL80211_ATTR_EXT_CAPA_MASK]));
0fafeb54
JM		 528 } else {
529 os_free(drv->extended_capa);
530 drv->extended_capa = NULL;
531 drv->extended_capa_len = 0;
532 }
533 }
534
535 if (tb[NL80211_ATTR_VENDOR_DATA]) {
536 struct nlattr *nl;
537 int rem;
538
539 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
540 struct nl80211_vendor_cmd_info *vinfo;
541 if (nla_len(nl) != sizeof(*vinfo)) {
542 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
543 continue;
544 }
545 vinfo = nla_data(nl);
546 switch (vinfo->subcmd) {
547 case QCA_NL80211_VENDOR_SUBCMD_ROAMING:
548 drv->roaming_vendor_cmd_avail = 1;
549 break;
550 case QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY:
551 drv->dfs_vendor_cmd_avail = 1;
552 break;
15badebd
CL		 553 case QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES:
554 drv->get_features_vendor_cmd_avail = 1;
0fafeb54 555 break;
16689c7c
PX		 556 case QCA_NL80211_VENDOR_SUBCMD_DO_ACS:
557 drv->capa.flags |= WPA_DRIVER_FLAGS_ACS_OFFLOAD;
558 break;
0fafeb54
JM		 559 }
560
561 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
562 vinfo->vendor_id, vinfo->subcmd);
563 }
564 }
565
566 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
567 struct nlattr *nl;
568 int rem;
569
570 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
571 struct nl80211_vendor_cmd_info *vinfo;
572 if (nla_len(nl) != sizeof(*vinfo)) {
573 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
574 continue;
575 }
576 vinfo = nla_data(nl);
0fafeb54
JM		 577 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
578 vinfo->vendor_id, vinfo->subcmd);
579 }
580 }
581
582 wiphy_info_wowlan_triggers(capa,
583 tb[NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED]);
584
585 if (tb[NL80211_ATTR_MAX_AP_ASSOC_STA])
586 capa->max_stations =
587 nla_get_u32(tb[NL80211_ATTR_MAX_AP_ASSOC_STA]);
588
589 return NL_SKIP;
590}
591
592
593static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
594 struct wiphy_info_data *info)
595{
596 u32 feat;
597 struct nl_msg *msg;
9589a91e 598 int flags = 0;
0fafeb54
JM		 599
600 os_memset(info, 0, sizeof(*info));
601 info->capa = &drv->capa;
602 info->drv = drv;
603
0fafeb54
JM		 604 feat = get_nl80211_protocol_features(drv);
605 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
9589a91e 606 flags = NLM_F_DUMP;
56f77852
JM		 607 msg = nl80211_cmd_msg(drv->first_bss, flags, NL80211_CMD_GET_WIPHY);
608 if (!msg || nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
9589a91e
JM		 609 nlmsg_free(msg);
610 return -1;
611 }
0fafeb54
JM		 612
613 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
614 return -1;
615
616 if (info->auth_supported)
617 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
618 else if (!info->connect_supported) {
619 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
620 "authentication/association or connect commands");
621 info->error = 1;
622 }
623
624 if (info->p2p_go_supported && info->p2p_client_supported)
625 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
626 if (info->p2p_concurrent) {
627 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
628 "interface (driver advertised support)");
629 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
630 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
631 }
632 if (info->num_multichan_concurrent > 1) {
633 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
634 "concurrent (driver advertised support)");
635 drv->capa.num_multichan_concurrent =
636 info->num_multichan_concurrent;
637 }
638 if (drv->capa.flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)
639 wpa_printf(MSG_DEBUG, "nl80211: use P2P_DEVICE support");
640
641 /* default to 5000 since early versions of mac80211 don't set it */
642 if (!drv->capa.max_remain_on_chan)
643 drv->capa.max_remain_on_chan = 5000;
644
645 if (info->channel_switch_supported)
646 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
dfa87878 647 drv->capa.wmm_ac_supported = info->wmm_ac_supported;
0fafeb54 648
86056fea
IP		 649 drv->capa.mac_addr_rand_sched_scan_supported =
650 info->mac_addr_rand_sched_scan_supported;
651 drv->capa.mac_addr_rand_scan_supported =
652 info->mac_addr_rand_scan_supported;
653
0fafeb54 654 return 0;
0fafeb54
JM		 655}
656
657
658static int dfs_info_handler(struct nl_msg *msg, void *arg)
659{
660 struct nlattr *tb[NL80211_ATTR_MAX + 1];
661 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
662 int *dfs_capability_ptr = arg;
663
664 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
665 genlmsg_attrlen(gnlh, 0), NULL);
666
667 if (tb[NL80211_ATTR_VENDOR_DATA]) {
668 struct nlattr *nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
669 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
670
671 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
672 nla_data(nl_vend), nla_len(nl_vend), NULL);
673
674 if (tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]) {
675 u32 val;
676 val = nla_get_u32(tb_vendor[QCA_WLAN_VENDOR_ATTR_DFS]);
677 wpa_printf(MSG_DEBUG, "nl80211: DFS offload capability: %u",
678 val);
679 *dfs_capability_ptr = val;
680 }
681 }
682
683 return NL_SKIP;
684}
685
686
687static void qca_nl80211_check_dfs_capa(struct wpa_driver_nl80211_data *drv)
688{
689 struct nl_msg *msg;
690 int dfs_capability = 0;
691 int ret;
692
693 if (!drv->dfs_vendor_cmd_avail)
694 return;
695
9725b784 696 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9589a91e
JM		 697 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
698 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
699 QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY)) {
700 nlmsg_free(msg);
701 return;
702 }
0fafeb54
JM		 703
704 ret = send_and_recv_msgs(drv, msg, dfs_info_handler, &dfs_capability);
705 if (!ret && dfs_capability)
706 drv->capa.flags |= WPA_DRIVER_FLAGS_DFS_OFFLOAD;
0fafeb54
JM		 707}
708
709
15badebd
CL		 710struct features_info {
711 u8 *flags;
712 size_t flags_len;
713};
714
715
716static int features_info_handler(struct nl_msg *msg, void *arg)
717{
718 struct nlattr *tb[NL80211_ATTR_MAX + 1];
719 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
720 struct features_info *info = arg;
721 struct nlattr *nl_vend, *attr;
722
723 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
724 genlmsg_attrlen(gnlh, 0), NULL);
725
726 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
727 if (nl_vend) {
728 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
729
730 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
731 nla_data(nl_vend), nla_len(nl_vend), NULL);
732
733 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS];
734 if (attr) {
735 info->flags = nla_data(attr);
736 info->flags_len = nla_len(attr);
737 }
738 }
739
740 return NL_SKIP;
741}
742
743
744static int check_feature(enum qca_wlan_vendor_features feature,
745 struct features_info *info)
746{
49e3eea8 747 size_t idx = feature / 8;
15badebd 748
49e3eea8
JM		 749 return (idx < info->flags_len) &&
750 (info->flags[idx] & BIT(feature % 8));
15badebd
CL		 751}
752
753
754static void qca_nl80211_get_features(struct wpa_driver_nl80211_data *drv)
755{
756 struct nl_msg *msg;
757 struct features_info info;
758 int ret;
759
760 if (!drv->get_features_vendor_cmd_avail)
761 return;
762
763 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
764 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
765 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
766 QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES)) {
767 nlmsg_free(msg);
768 return;
769 }
770
771 os_memset(&info, 0, sizeof(info));
772 ret = send_and_recv_msgs(drv, msg, features_info_handler, &info);
773 if (ret || !info.flags)
774 return;
775
776 if (check_feature(QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD, &info))
777 drv->capa.flags |= WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD;
778}
779
780
0fafeb54
JM		 781int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
782{
783 struct wiphy_info_data info;
784 if (wpa_driver_nl80211_get_info(drv, &info))
785 return -1;
786
787 if (info.error)
788 return -1;
789
790 drv->has_capability = 1;
791 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
792 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
793 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
794 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
795 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
796 WPA_DRIVER_AUTH_SHARED |
797 WPA_DRIVER_AUTH_LEAP;
798
799 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
800 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
801 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
802
803 /*
804 * As all cfg80211 drivers must support cases where the AP interface is
805 * removed without the knowledge of wpa_supplicant/hostapd, e.g., in
806 * case that the user space daemon has crashed, they must be able to
807 * cleanup all stations and key entries in the AP tear down flow. Thus,
808 * this flag can/should always be set for cfg80211 drivers.
809 */
810 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_TEARDOWN_SUPPORT;
811
812 if (!info.device_ap_sme) {
813 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
814
815 /*
816 * No AP SME is currently assumed to also indicate no AP MLME
817 * in the driver/firmware.
818 */
819 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
820 }
821
822 drv->device_ap_sme = info.device_ap_sme;
823 drv->poll_command_supported = info.poll_command_supported;
824 drv->data_tx_status = info.data_tx_status;
825 if (info.set_qos_map_supported)
826 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
827 drv->have_low_prio_scan = info.have_low_prio_scan;
828
829 /*
830 * If poll command and tx status are supported, mac80211 is new enough
831 * to have everything we need to not need monitor interfaces.
832 */
833 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
834
835 if (drv->device_ap_sme && drv->use_monitor) {
836 /*
837 * Non-mac80211 drivers may not support monitor interface.
838 * Make sure we do not get stuck with incorrect capability here
839 * by explicitly testing this.
840 */
841 if (!info.monitor_supported) {
842 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
843 "with device_ap_sme since no monitor mode "
844 "support detected");
845 drv->use_monitor = 0;
846 }
847 }
848
849 /*
850 * If we aren't going to use monitor interfaces, but the
851 * driver doesn't support data TX status, we won't get TX
852 * status for EAPOL frames.
853 */
854 if (!drv->use_monitor && !info.data_tx_status)
855 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
856
857 qca_nl80211_check_dfs_capa(drv);
15badebd 858 qca_nl80211_get_features(drv);
0fafeb54
JM		 859
860 return 0;
861}
862
863
864struct phy_info_arg {
865 u16 *num_modes;
866 struct hostapd_hw_modes *modes;
867 int last_mode, last_chan_idx;
868};
869
870static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
871 struct nlattr *ampdu_factor,
872 struct nlattr *ampdu_density,
873 struct nlattr *mcs_set)
874{
875 if (capa)
876 mode->ht_capab = nla_get_u16(capa);
877
878 if (ampdu_factor)
879 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
880
881 if (ampdu_density)
882 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
883
884 if (mcs_set && nla_len(mcs_set) >= 16) {
885 u8 *mcs;
886 mcs = nla_data(mcs_set);
887 os_memcpy(mode->mcs_set, mcs, 16);
888 }
889}
890
891
892static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
893 struct nlattr *capa,
894 struct nlattr *mcs_set)
895{
896 if (capa)
897 mode->vht_capab = nla_get_u32(capa);
898
899 if (mcs_set && nla_len(mcs_set) >= 8) {
900 u8 *mcs;
901 mcs = nla_data(mcs_set);
902 os_memcpy(mode->vht_mcs_set, mcs, 8);
903 }
904}
905
906
907static void phy_info_freq(struct hostapd_hw_modes *mode,
908 struct hostapd_channel_data *chan,
909 struct nlattr *tb_freq[])
910{
911 u8 channel;
912 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
913 chan->flag = 0;
914 chan->dfs_cac_ms = 0;
915 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
916 chan->chan = channel;
917
918 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
919 chan->flag |= HOSTAPD_CHAN_DISABLED;
920 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
921 chan->flag |= HOSTAPD_CHAN_NO_IR;
922 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
923 chan->flag |= HOSTAPD_CHAN_RADAR;
924 if (tb_freq[NL80211_FREQUENCY_ATTR_INDOOR_ONLY])
925 chan->flag |= HOSTAPD_CHAN_INDOOR_ONLY;
926 if (tb_freq[NL80211_FREQUENCY_ATTR_GO_CONCURRENT])
927 chan->flag |= HOSTAPD_CHAN_GO_CONCURRENT;
928
929 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
930 enum nl80211_dfs_state state =
931 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
932
933 switch (state) {
934 case NL80211_DFS_USABLE:
935 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
936 break;
937 case NL80211_DFS_AVAILABLE:
938 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
939 break;
940 case NL80211_DFS_UNAVAILABLE:
941 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
942 break;
943 }
944 }
945
946 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]) {
947 chan->dfs_cac_ms = nla_get_u32(
948 tb_freq[NL80211_FREQUENCY_ATTR_DFS_CAC_TIME]);
949 }
950}
951
952
953static int phy_info_freqs(struct phy_info_arg *phy_info,
954 struct hostapd_hw_modes *mode, struct nlattr *tb)
955{
956 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
957 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
958 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
959 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
960 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
961 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
962 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
963 };
964 int new_channels = 0;
965 struct hostapd_channel_data *channel;
966 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
967 struct nlattr *nl_freq;
968 int rem_freq, idx;
969
970 if (tb == NULL)
971 return NL_OK;
972
973 nla_for_each_nested(nl_freq, tb, rem_freq) {
974 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
975 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
976 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
977 continue;
978 new_channels++;
979 }
980
981 channel = os_realloc_array(mode->channels,
982 mode->num_channels + new_channels,
983 sizeof(struct hostapd_channel_data));
984 if (!channel)
985 return NL_SKIP;
986
987 mode->channels = channel;
988 mode->num_channels += new_channels;
989
990 idx = phy_info->last_chan_idx;
991
992 nla_for_each_nested(nl_freq, tb, rem_freq) {
993 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
994 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
995 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
996 continue;
997 phy_info_freq(mode, &mode->channels[idx], tb_freq);
998 idx++;
999 }
1000 phy_info->last_chan_idx = idx;
1001
1002 return NL_OK;
1003}
1004
1005
1006static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
1007{
1008 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1009 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1010 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
1011 { .type = NLA_FLAG },
1012 };
1013 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1014 struct nlattr *nl_rate;
1015 int rem_rate, idx;
1016
1017 if (tb == NULL)
1018 return NL_OK;
1019
1020 nla_for_each_nested(nl_rate, tb, rem_rate) {
1021 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1022 nla_data(nl_rate), nla_len(nl_rate),
1023 rate_policy);
1024 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1025 continue;
1026 mode->num_rates++;
1027 }
1028
1029 mode->rates = os_calloc(mode->num_rates, sizeof(int));
1030 if (!mode->rates)
1031 return NL_SKIP;
1032
1033 idx = 0;
1034
1035 nla_for_each_nested(nl_rate, tb, rem_rate) {
1036 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
1037 nla_data(nl_rate), nla_len(nl_rate),
1038 rate_policy);
1039 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1040 continue;
1041 mode->rates[idx] = nla_get_u32(
1042 tb_rate[NL80211_BITRATE_ATTR_RATE]);
1043 idx++;
1044 }
1045
1046 return NL_OK;
1047}
1048
1049
1050static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
1051{
1052 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1053 struct hostapd_hw_modes *mode;
1054 int ret;
1055
1056 if (phy_info->last_mode != nl_band->nla_type) {
1057 mode = os_realloc_array(phy_info->modes,
1058 *phy_info->num_modes + 1,
1059 sizeof(*mode));
1060 if (!mode)
1061 return NL_SKIP;
1062 phy_info->modes = mode;
1063
1064 mode = &phy_info->modes[*(phy_info->num_modes)];
1065 os_memset(mode, 0, sizeof(*mode));
1066 mode->mode = NUM_HOSTAPD_MODES;
1067 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
1068 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
1069
1070 /*
1071 * Unsupported VHT MCS stream is defined as value 3, so the VHT
1072 * MCS RX/TX map must be initialized with 0xffff to mark all 8
1073 * possible streams as unsupported. This will be overridden if
1074 * driver advertises VHT support.
1075 */
1076 mode->vht_mcs_set[0] = 0xff;
1077 mode->vht_mcs_set[1] = 0xff;
1078 mode->vht_mcs_set[4] = 0xff;
1079 mode->vht_mcs_set[5] = 0xff;
1080
1081 *(phy_info->num_modes) += 1;
1082 phy_info->last_mode = nl_band->nla_type;
1083 phy_info->last_chan_idx = 0;
1084 } else
1085 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
1086
1087 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1088 nla_len(nl_band), NULL);
1089
1090 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
1091 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
1092 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
1093 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
1094 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
1095 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
1096 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
1097 if (ret != NL_OK)
1098 return ret;
1099 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
1100 if (ret != NL_OK)
1101 return ret;
1102
1103 return NL_OK;
1104}
1105
1106
1107static int phy_info_handler(struct nl_msg *msg, void *arg)
1108{
1109 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1110 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1111 struct phy_info_arg *phy_info = arg;
1112 struct nlattr *nl_band;
1113 int rem_band;
1114
1115 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1116 genlmsg_attrlen(gnlh, 0), NULL);
1117
1118 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1119 return NL_SKIP;
1120
1121 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
1122 {
1123 int res = phy_info_band(phy_info, nl_band);
1124 if (res != NL_OK)
1125 return res;
1126 }
1127
1128 return NL_SKIP;
1129}
1130
1131
1132static struct hostapd_hw_modes *
1133wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
1134 u16 *num_modes)
1135{
1136 u16 m;
1137 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1138 int i, mode11g_idx = -1;
1139
1140 /* heuristic to set up modes */
1141 for (m = 0; m < *num_modes; m++) {
1142 if (!modes[m].num_channels)
1143 continue;
1144 if (modes[m].channels[0].freq < 4000) {
1145 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
1146 for (i = 0; i < modes[m].num_rates; i++) {
1147 if (modes[m].rates[i] > 200) {
1148 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
1149 break;
1150 }
1151 }
1152 } else if (modes[m].channels[0].freq > 50000)
1153 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
1154 else
1155 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
1156 }
1157
1158 /* If only 802.11g mode is included, use it to construct matching
1159 * 802.11b mode data. */
1160
1161 for (m = 0; m < *num_modes; m++) {
1162 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
1163 return modes; /* 802.11b already included */
1164 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
1165 mode11g_idx = m;
1166 }
1167
1168 if (mode11g_idx < 0)
1169 return modes; /* 2.4 GHz band not supported at all */
1170
1171 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
1172 if (nmodes == NULL)
1173 return modes; /* Could not add 802.11b mode */
1174
1175 mode = &nmodes[*num_modes];
1176 os_memset(mode, 0, sizeof(*mode));
1177 (*num_modes)++;
1178 modes = nmodes;
1179
1180 mode->mode = HOSTAPD_MODE_IEEE80211B;
1181
1182 mode11g = &modes[mode11g_idx];
1183 mode->num_channels = mode11g->num_channels;
1184 mode->channels = os_malloc(mode11g->num_channels *
1185 sizeof(struct hostapd_channel_data));
1186 if (mode->channels == NULL) {
1187 (*num_modes)--;
1188 return modes; /* Could not add 802.11b mode */
1189 }
1190 os_memcpy(mode->channels, mode11g->channels,
1191 mode11g->num_channels * sizeof(struct hostapd_channel_data));
1192
1193 mode->num_rates = 0;
1194 mode->rates = os_malloc(4 * sizeof(int));
1195 if (mode->rates == NULL) {
1196 os_free(mode->channels);
1197 (*num_modes)--;
1198 return modes; /* Could not add 802.11b mode */
1199 }
1200
1201 for (i = 0; i < mode11g->num_rates; i++) {
1202 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
1203 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
1204 continue;
1205 mode->rates[mode->num_rates] = mode11g->rates[i];
1206 mode->num_rates++;
1207 if (mode->num_rates == 4)
1208 break;
1209 }
1210
1211 if (mode->num_rates == 0) {
1212 os_free(mode->channels);
1213 os_free(mode->rates);
1214 (*num_modes)--;
1215 return modes; /* No 802.11b rates */
1216 }
1217
1218 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
1219 "information");
1220
1221 return modes;
1222}
1223
1224
1225static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
1226 int end)
1227{
1228 int c;
1229
1230 for (c = 0; c < mode->num_channels; c++) {
1231 struct hostapd_channel_data *chan = &mode->channels[c];
1232 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
1233 chan->flag |= HOSTAPD_CHAN_HT40;
1234 }
1235}
1236
1237
1238static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
1239 int end)
1240{
1241 int c;
1242
1243 for (c = 0; c < mode->num_channels; c++) {
1244 struct hostapd_channel_data *chan = &mode->channels[c];
1245 if (!(chan->flag & HOSTAPD_CHAN_HT40))
1246 continue;
1247 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
1248 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
1249 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
1250 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
1251 }
1252}
1253
1254
1255static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
1256 struct phy_info_arg *results)
1257{
1258 u16 m;
1259
1260 for (m = 0; m < *results->num_modes; m++) {
1261 int c;
1262 struct hostapd_hw_modes *mode = &results->modes[m];
1263
1264 for (c = 0; c < mode->num_channels; c++) {
1265 struct hostapd_channel_data *chan = &mode->channels[c];
1266 if ((u32) chan->freq - 10 >= start &&
1267 (u32) chan->freq + 10 <= end)
1268 chan->max_tx_power = max_eirp;
1269 }
1270 }
1271}
1272
1273
1274static void nl80211_reg_rule_ht40(u32 start, u32 end,
1275 struct phy_info_arg *results)
1276{
1277 u16 m;
1278
1279 for (m = 0; m < *results->num_modes; m++) {
1280 if (!(results->modes[m].ht_capab &
1281 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1282 continue;
1283 nl80211_set_ht40_mode(&results->modes[m], start, end);
1284 }
1285}
1286
1287
1288static void nl80211_reg_rule_sec(struct nlattr *tb[],
1289 struct phy_info_arg *results)
1290{
1291 u32 start, end, max_bw;
1292 u16 m;
1293
1294 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1295 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1296 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1297 return;
1298
1299 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1300 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1301 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1302
1303 if (max_bw < 20)
1304 return;
1305
1306 for (m = 0; m < *results->num_modes; m++) {
1307 if (!(results->modes[m].ht_capab &
1308 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1309 continue;
1310 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
1311 }
1312}
1313
1314
1315static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
1316 int end)
1317{
1318 int c;
1319
1320 for (c = 0; c < mode->num_channels; c++) {
1321 struct hostapd_channel_data *chan = &mode->channels[c];
1322 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
1323 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
1324
1325 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
1326 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
1327
1328 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
1329 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
1330
1331 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
1332 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
1333 }
1334}
1335
1336
1337static void nl80211_reg_rule_vht(struct nlattr *tb[],
1338 struct phy_info_arg *results)
1339{
1340 u32 start, end, max_bw;
1341 u16 m;
1342
1343 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1344 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
1345 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
1346 return;
1347
1348 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1349 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1350 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1351
1352 if (max_bw < 80)
1353 return;
1354
1355 for (m = 0; m < *results->num_modes; m++) {
1356 if (!(results->modes[m].ht_capab &
1357 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
1358 continue;
1359 /* TODO: use a real VHT support indication */
1360 if (!results->modes[m].vht_capab)
1361 continue;
1362
1363 nl80211_set_vht_mode(&results->modes[m], start, end);
1364 }
1365}
1366
1367
1368static const char * dfs_domain_name(enum nl80211_dfs_regions region)
1369{
1370 switch (region) {
1371 case NL80211_DFS_UNSET:
1372 return "DFS-UNSET";
1373 case NL80211_DFS_FCC:
1374 return "DFS-FCC";
1375 case NL80211_DFS_ETSI:
1376 return "DFS-ETSI";
1377 case NL80211_DFS_JP:
1378 return "DFS-JP";
1379 default:
1380 return "DFS-invalid";
1381 }
1382}
1383
1384
1385static int nl80211_get_reg(struct nl_msg *msg, void *arg)
1386{
1387 struct phy_info_arg *results = arg;
1388 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1389 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1390 struct nlattr *nl_rule;
1391 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
1392 int rem_rule;
1393 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1394 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1395 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1396 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1397 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1398 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1399 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1400 };
1401
1402 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1403 genlmsg_attrlen(gnlh, 0), NULL);
1404 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
1405 !tb_msg[NL80211_ATTR_REG_RULES]) {
1406 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
1407 "available");
1408 return NL_SKIP;
1409 }
1410
1411 if (tb_msg[NL80211_ATTR_DFS_REGION]) {
1412 enum nl80211_dfs_regions dfs_domain;
1413 dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
1414 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s (%s)",
1415 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]),
1416 dfs_domain_name(dfs_domain));
1417 } else {
1418 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
1419 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
1420 }
1421
1422 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1423 {
1424 u32 start, end, max_eirp = 0, max_bw = 0, flags = 0;
1425 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1426 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1427 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
1428 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
1429 continue;
1430 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
1431 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
1432 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1433 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
1434 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1435 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
1436 if (tb_rule[NL80211_ATTR_REG_RULE_FLAGS])
1437 flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
1438
1439 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm%s%s%s%s%s%s%s%s",
1440 start, end, max_bw, max_eirp,
1441 flags & NL80211_RRF_NO_OFDM ? " (no OFDM)" : "",
1442 flags & NL80211_RRF_NO_CCK ? " (no CCK)" : "",
1443 flags & NL80211_RRF_NO_INDOOR ? " (no indoor)" : "",
1444 flags & NL80211_RRF_NO_OUTDOOR ? " (no outdoor)" :
1445 "",
1446 flags & NL80211_RRF_DFS ? " (DFS)" : "",
1447 flags & NL80211_RRF_PTP_ONLY ? " (PTP only)" : "",
1448 flags & NL80211_RRF_PTMP_ONLY ? " (PTMP only)" : "",
1449 flags & NL80211_RRF_NO_IR ? " (no IR)" : "");
1450 if (max_bw >= 40)
1451 nl80211_reg_rule_ht40(start, end, results);
1452 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1453 nl80211_reg_rule_max_eirp(start, end, max_eirp,
1454 results);
1455 }
1456
1457 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1458 {
1459 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1460 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1461 nl80211_reg_rule_sec(tb_rule, results);
1462 }
1463
1464 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
1465 {
1466 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
1467 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
1468 nl80211_reg_rule_vht(tb_rule, results);
1469 }
1470
1471 return NL_SKIP;
1472}
1473
1474
1475static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
1476 struct phy_info_arg *results)
1477{
1478 struct nl_msg *msg;
1479
1480 msg = nlmsg_alloc();
1481 if (!msg)
1482 return -ENOMEM;
1483
1484 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1485 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
1486}
1487
1488
1489struct hostapd_hw_modes *
1490nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
1491{
1492 u32 feat;
1493 struct i802_bss *bss = priv;
1494 struct wpa_driver_nl80211_data *drv = bss->drv;
9589a91e 1495 int nl_flags = 0;
0fafeb54
JM		 1496 struct nl_msg *msg;
1497 struct phy_info_arg result = {
1498 .num_modes = num_modes,
1499 .modes = NULL,
1500 .last_mode = -1,
1501 };
1502
1503 *num_modes = 0;
1504 *flags = 0;
1505
0fafeb54
JM		 1506 feat = get_nl80211_protocol_features(drv);
1507 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
9589a91e 1508 nl_flags = NLM_F_DUMP;
56f77852
JM		 1509 if (!(msg = nl80211_cmd_msg(bss, nl_flags, NL80211_CMD_GET_WIPHY)) ||
1510 nla_put_flag(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP)) {
9589a91e
JM		 1511 nlmsg_free(msg);
1512 return NULL;
1513 }
0fafeb54
JM		 1514
1515 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
1516 nl80211_set_regulatory_flags(drv, &result);
1517 return wpa_driver_nl80211_postprocess_modes(result.modes,
1518 num_modes);
1519 }
9589a91e 1520
0fafeb54
JM		 1521 return NULL;
1522}
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