1 /*
2 * Copyright (c) 2009, Atheros Communications, Inc.
3 * Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10 #include <sys/stat.h>
11
12 #include "common.h"
13 #include "eloop.h"
14 #include "common/ieee802_11_common.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/gas.h"
17 #include "common/wpa_ctrl.h"
18 #include "rsn_supp/wpa.h"
19 #include "wpa_supplicant_i.h"
20 #include "driver_i.h"
21 #include "config.h"
22 #include "scan.h"
23 #include "bss.h"
24 #include "bssid_ignore.h"
25 #include "gas_query.h"
26 #include "interworking.h"
27 #include "hs20_supplicant.h"
28 #include "base64.h"
29
30
31 #define OSU_MAX_ITEMS 10
32
33 struct osu_lang_string {
34 char lang[4];
35 char text[253];
36 };
37
38 struct osu_icon {
39 u16 width;
40 u16 height;
41 char lang[4];
42 char icon_type[256];
43 char filename[256];
44 unsigned int id;
45 unsigned int failed:1;
46 };
47
48 struct osu_provider {
49 u8 bssid[ETH_ALEN];
50 u8 osu_ssid[SSID_MAX_LEN];
51 u8 osu_ssid_len;
52 u8 osu_ssid2[SSID_MAX_LEN];
53 u8 osu_ssid2_len;
54 char server_uri[256];
55 u32 osu_methods; /* bit 0 = OMA-DM, bit 1 = SOAP-XML SPP */
56 char osu_nai[256];
57 char osu_nai2[256];
58 struct osu_lang_string friendly_name[OSU_MAX_ITEMS];
59 size_t friendly_name_count;
60 struct osu_lang_string serv_desc[OSU_MAX_ITEMS];
61 size_t serv_desc_count;
62 struct osu_icon icon[OSU_MAX_ITEMS];
63 size_t icon_count;
64 };
65
66
hs20_configure_frame_filters(struct wpa_supplicant * wpa_s)67 void hs20_configure_frame_filters(struct wpa_supplicant *wpa_s)
68 {
69 struct wpa_bss *bss = wpa_s->current_bss;
70 u8 *bssid = wpa_s->bssid;
71 const u8 *ie;
72 const u8 *ext_capa;
73 u32 filter = 0;
74
75 if (!bss || !is_hs20_network(wpa_s, wpa_s->current_ssid, bss)) {
76 wpa_printf(MSG_DEBUG,
77 "Not configuring frame filtering - BSS " MACSTR
78 " is not a Hotspot 2.0 network", MAC2STR(bssid));
79 return;
80 }
81
82 ie = wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE);
83
84 /* Check if DGAF disabled bit is zero (5th byte in the IE) */
85 if (!ie || ie[1] < 5)
86 wpa_printf(MSG_DEBUG,
87 "Not configuring frame filtering - Can't extract DGAF bit");
88 else if (!(ie[6] & HS20_DGAF_DISABLED))
89 filter |= WPA_DATA_FRAME_FILTER_FLAG_GTK;
90
91 ext_capa = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
92 if (!ext_capa || ext_capa[1] < 2) {
93 wpa_printf(MSG_DEBUG,
94 "Not configuring frame filtering - Can't extract Proxy ARP bit");
95 return;
96 }
97
98 if (wpa_bss_ext_capab(bss, WLAN_EXT_CAPAB_PROXY_ARP))
99 filter |= WPA_DATA_FRAME_FILTER_FLAG_ARP |
100 WPA_DATA_FRAME_FILTER_FLAG_NA;
101
102 wpa_drv_configure_frame_filters(wpa_s, filter);
103 }
104
105
wpas_hs20_add_indication(struct wpabuf * buf,int pps_mo_id,int ap_release)106 void wpas_hs20_add_indication(struct wpabuf *buf, int pps_mo_id, int ap_release)
107 {
108 int release;
109 u8 conf;
110
111 release = (HS20_VERSION >> 4) + 1;
112 if (ap_release > 0 && release > ap_release)
113 release = ap_release;
114 if (release < 2)
115 pps_mo_id = -1;
116
117 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
118 wpabuf_put_u8(buf, pps_mo_id >= 0 ? 7 : 5);
119 wpabuf_put_be24(buf, OUI_WFA);
120 wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
121 conf = (release - 1) << 4;
122 if (pps_mo_id >= 0)
123 conf |= HS20_PPS_MO_ID_PRESENT;
124 wpabuf_put_u8(buf, conf);
125 if (pps_mo_id >= 0)
126 wpabuf_put_le16(buf, pps_mo_id);
127 }
128
129
wpas_hs20_add_roam_cons_sel(struct wpabuf * buf,const struct wpa_ssid * ssid)130 void wpas_hs20_add_roam_cons_sel(struct wpabuf *buf,
131 const struct wpa_ssid *ssid)
132 {
133 if (!ssid->roaming_consortium_selection ||
134 !ssid->roaming_consortium_selection_len)
135 return;
136
137 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
138 wpabuf_put_u8(buf, 4 + ssid->roaming_consortium_selection_len);
139 wpabuf_put_be24(buf, OUI_WFA);
140 wpabuf_put_u8(buf, HS20_ROAMING_CONS_SEL_OUI_TYPE);
141 wpabuf_put_data(buf, ssid->roaming_consortium_selection,
142 ssid->roaming_consortium_selection_len);
143 }
144
145
get_hs20_version(struct wpa_bss * bss)146 int get_hs20_version(struct wpa_bss *bss)
147 {
148 const u8 *ie;
149
150 if (!bss)
151 return 0;
152
153 ie = wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE);
154 if (!ie || ie[1] < 5)
155 return 0;
156
157 return ((ie[6] >> 4) & 0x0f) + 1;
158 }
159
160
is_hs20_network(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss)161 int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
162 struct wpa_bss *bss)
163 {
164 if (!wpa_s->conf->hs20 || !ssid)
165 return 0;
166
167 if (ssid->parent_cred)
168 return 1;
169
170 if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
171 return 0;
172
173 /*
174 * This may catch some non-Hotspot 2.0 cases, but it is safer to do that
175 * than cause Hotspot 2.0 connections without indication element getting
176 * added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
177 */
178
179 if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
180 return 0;
181 if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
182 return 0;
183 if (ssid->proto != WPA_PROTO_RSN)
184 return 0;
185
186 return 1;
187 }
188
189
hs20_get_pps_mo_id(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)190 int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
191 {
192 struct wpa_cred *cred;
193
194 if (ssid == NULL)
195 return 0;
196
197 if (ssid->update_identifier)
198 return ssid->update_identifier;
199
200 if (ssid->parent_cred == NULL)
201 return 0;
202
203 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
204 if (ssid->parent_cred == cred)
205 return cred->update_identifier;
206 }
207
208 return 0;
209 }
210
211
hs20_put_anqp_req(u32 stypes,const u8 * payload,size_t payload_len,struct wpabuf * buf)212 void hs20_put_anqp_req(u32 stypes, const u8 *payload, size_t payload_len,
213 struct wpabuf *buf)
214 {
215 u8 *len_pos;
216
217 if (buf == NULL)
218 return;
219
220 len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
221 wpabuf_put_be24(buf, OUI_WFA);
222 wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
223 if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
224 wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
225 wpabuf_put_u8(buf, 0); /* Reserved */
226 if (payload)
227 wpabuf_put_data(buf, payload, payload_len);
228 } else if (stypes == BIT(HS20_STYPE_ICON_REQUEST)) {
229 wpabuf_put_u8(buf, HS20_STYPE_ICON_REQUEST);
230 wpabuf_put_u8(buf, 0); /* Reserved */
231 if (payload)
232 wpabuf_put_data(buf, payload, payload_len);
233 } else {
234 u8 i;
235 wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
236 wpabuf_put_u8(buf, 0); /* Reserved */
237 for (i = 0; i < 32; i++) {
238 if (stypes & BIT(i))
239 wpabuf_put_u8(buf, i);
240 }
241 }
242 gas_anqp_set_element_len(buf, len_pos);
243
244 gas_anqp_set_len(buf);
245 }
246
247
hs20_build_anqp_req(u32 stypes,const u8 * payload,size_t payload_len)248 static struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
249 size_t payload_len)
250 {
251 struct wpabuf *buf;
252
253 buf = gas_anqp_build_initial_req(0, 100 + payload_len);
254 if (buf == NULL)
255 return NULL;
256
257 hs20_put_anqp_req(stypes, payload, payload_len, buf);
258
259 return buf;
260 }
261
262
hs20_anqp_send_req(struct wpa_supplicant * wpa_s,const u8 * dst,u32 stypes,const u8 * payload,size_t payload_len,int inmem)263 int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
264 const u8 *payload, size_t payload_len, int inmem)
265 {
266 struct wpabuf *buf;
267 int ret = 0;
268 int freq;
269 struct wpa_bss *bss;
270 int res;
271 struct icon_entry *icon_entry;
272
273 bss = wpa_bss_get_bssid(wpa_s, dst);
274 if (!bss) {
275 wpa_printf(MSG_WARNING,
276 "ANQP: Cannot send query to unknown BSS "
277 MACSTR, MAC2STR(dst));
278 return -1;
279 }
280
281 wpa_bss_anqp_unshare_alloc(bss);
282 freq = bss->freq;
283
284 wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
285 "subtypes 0x%x", MAC2STR(dst), stypes);
286
287 buf = hs20_build_anqp_req(stypes, payload, payload_len);
288 if (buf == NULL)
289 return -1;
290
291 res = gas_query_req(wpa_s->gas, dst, freq, 0, 0, buf, anqp_resp_cb,
292 wpa_s);
293 if (res < 0) {
294 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
295 wpabuf_free(buf);
296 return -1;
297 } else
298 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
299 "%u", res);
300
301 if (inmem) {
302 icon_entry = os_zalloc(sizeof(struct icon_entry));
303 if (!icon_entry)
304 return -1;
305 os_memcpy(icon_entry->bssid, dst, ETH_ALEN);
306 icon_entry->file_name = os_malloc(payload_len + 1);
307 if (!icon_entry->file_name) {
308 os_free(icon_entry);
309 return -1;
310 }
311 os_memcpy(icon_entry->file_name, payload, payload_len);
312 icon_entry->file_name[payload_len] = '\0';
313 icon_entry->dialog_token = res;
314
315 dl_list_add(&wpa_s->icon_head, &icon_entry->list);
316 }
317
318 return ret;
319 }
320
321
hs20_find_icon(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * file_name)322 static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
323 const u8 *bssid,
324 const char *file_name)
325 {
326 struct icon_entry *icon;
327
328 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
329 if (os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0 &&
330 os_strcmp(icon->file_name, file_name) == 0 && icon->image)
331 return icon;
332 }
333
334 return NULL;
335 }
336
337
hs20_get_icon(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * file_name,size_t offset,size_t size,char * reply,size_t buf_len)338 int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
339 const char *file_name, size_t offset, size_t size,
340 char *reply, size_t buf_len)
341 {
342 struct icon_entry *icon;
343 size_t out_size;
344 char *b64;
345 size_t b64_size;
346 int reply_size;
347
348 wpa_printf(MSG_DEBUG, "HS20: Get icon " MACSTR " %s @ %u +%u (%u)",
349 MAC2STR(bssid), file_name, (unsigned int) offset,
350 (unsigned int) size, (unsigned int) buf_len);
351
352 icon = hs20_find_icon(wpa_s, bssid, file_name);
353 if (!icon || !icon->image || offset >= icon->image_len)
354 return -1;
355 if (size > icon->image_len - offset)
356 size = icon->image_len - offset;
357 out_size = buf_len - 3 /* max base64 padding */;
358 if (size * 4 > out_size * 3)
359 size = out_size * 3 / 4;
360 if (size == 0)
361 return -1;
362
363 b64 = base64_encode(&icon->image[offset], size, &b64_size);
364 if (b64 && buf_len >= b64_size) {
365 os_memcpy(reply, b64, b64_size);
366 reply_size = b64_size;
367 } else {
368 reply_size = -1;
369 }
370 os_free(b64);
371 return reply_size;
372 }
373
374
hs20_free_icon_entry(struct icon_entry * icon)375 static void hs20_free_icon_entry(struct icon_entry *icon)
376 {
377 wpa_printf(MSG_DEBUG, "HS20: Free stored icon from " MACSTR
378 " dialog_token=%u file_name=%s image_len=%u",
379 MAC2STR(icon->bssid), icon->dialog_token,
380 icon->file_name ? icon->file_name : "N/A",
381 (unsigned int) icon->image_len);
382 os_free(icon->file_name);
383 os_free(icon->image);
384 os_free(icon);
385 }
386
387
hs20_del_icon(struct wpa_supplicant * wpa_s,const u8 * bssid,const char * file_name)388 int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
389 const char *file_name)
390 {
391 struct icon_entry *icon, *tmp;
392 int count = 0;
393
394 if (!bssid)
395 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons");
396 else if (!file_name)
397 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons for "
398 MACSTR, MAC2STR(bssid));
399 else
400 wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
401 MACSTR " file name %s", MAC2STR(bssid), file_name);
402
403 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
404 list) {
405 if ((!bssid || os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0) &&
406 (!file_name ||
407 os_strcmp(icon->file_name, file_name) == 0)) {
408 dl_list_del(&icon->list);
409 hs20_free_icon_entry(icon);
410 count++;
411 }
412 }
413 return count == 0 ? -1 : 0;
414 }
415
416
hs20_set_osu_access_permission(const char * osu_dir,const char * fname)417 static void hs20_set_osu_access_permission(const char *osu_dir,
418 const char *fname)
419 {
420 struct stat statbuf;
421
422 /* Get OSU directory information */
423 if (stat(osu_dir, &statbuf) < 0) {
424 wpa_printf(MSG_WARNING, "Cannot stat the OSU directory %s",
425 osu_dir);
426 return;
427 }
428
429 if (chmod(fname, statbuf.st_mode) < 0) {
430 wpa_printf(MSG_WARNING,
431 "Cannot change the permissions for %s", fname);
432 return;
433 }
434
435 if (lchown(fname, statbuf.st_uid, statbuf.st_gid) < 0) {
436 wpa_printf(MSG_WARNING, "Cannot change the ownership for %s",
437 fname);
438 }
439 }
440
441
hs20_remove_duplicate_icons(struct wpa_supplicant * wpa_s,struct icon_entry * new_icon)442 static void hs20_remove_duplicate_icons(struct wpa_supplicant *wpa_s,
443 struct icon_entry *new_icon)
444 {
445 struct icon_entry *icon, *tmp;
446
447 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
448 list) {
449 if (icon == new_icon)
450 continue;
451 if (os_memcmp(icon->bssid, new_icon->bssid, ETH_ALEN) == 0 &&
452 os_strcmp(icon->file_name, new_icon->file_name) == 0) {
453 dl_list_del(&icon->list);
454 hs20_free_icon_entry(icon);
455 }
456 }
457 }
458
459
hs20_process_icon_binary_file(struct wpa_supplicant * wpa_s,const u8 * sa,const u8 * pos,size_t slen,u8 dialog_token)460 static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
461 const u8 *sa, const u8 *pos,
462 size_t slen, u8 dialog_token)
463 {
464 char fname[256];
465 int png;
466 FILE *f;
467 u16 data_len;
468 struct icon_entry *icon;
469
470 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
471 if (icon->dialog_token == dialog_token && !icon->image &&
472 os_memcmp(icon->bssid, sa, ETH_ALEN) == 0) {
473 icon->image = os_memdup(pos, slen);
474 if (!icon->image)
475 return -1;
476 icon->image_len = slen;
477 hs20_remove_duplicate_icons(wpa_s, icon);
478 wpa_msg(wpa_s, MSG_INFO,
479 RX_HS20_ICON MACSTR " %s %u",
480 MAC2STR(sa), icon->file_name,
481 (unsigned int) icon->image_len);
482 return 0;
483 }
484 }
485
486 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR " Icon Binary File",
487 MAC2STR(sa));
488
489 if (slen < 4) {
490 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
491 "value from " MACSTR, MAC2STR(sa));
492 return -1;
493 }
494
495 wpa_printf(MSG_DEBUG, "HS 2.0: Download Status Code %u", *pos);
496 if (*pos != 0)
497 return -1;
498 pos++;
499 slen--;
500
501 if ((size_t) 1 + pos[0] > slen) {
502 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
503 "value from " MACSTR, MAC2STR(sa));
504 return -1;
505 }
506 wpa_hexdump_ascii(MSG_DEBUG, "Icon Type", pos + 1, pos[0]);
507 png = os_strncasecmp((char *) pos + 1, "image/png", 9) == 0;
508 slen -= 1 + pos[0];
509 pos += 1 + pos[0];
510
511 if (slen < 2) {
512 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
513 "value from " MACSTR, MAC2STR(sa));
514 return -1;
515 }
516 data_len = WPA_GET_LE16(pos);
517 pos += 2;
518 slen -= 2;
519
520 if (data_len > slen) {
521 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
522 "value from " MACSTR, MAC2STR(sa));
523 return -1;
524 }
525
526 wpa_printf(MSG_DEBUG, "Icon Binary Data: %u bytes", data_len);
527 if (wpa_s->conf->osu_dir == NULL)
528 return -1;
529
530 wpa_s->osu_icon_id++;
531 if (wpa_s->osu_icon_id == 0)
532 wpa_s->osu_icon_id++;
533 snprintf(fname, sizeof(fname), "%s/osu-icon-%u.%s",
534 wpa_s->conf->osu_dir, wpa_s->osu_icon_id,
535 png ? "png" : "icon");
536 f = fopen(fname, "wb");
537 if (f == NULL)
538 return -1;
539
540 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
541
542 if (fwrite(pos, slen, 1, f) != 1) {
543 fclose(f);
544 unlink(fname);
545 return -1;
546 }
547 fclose(f);
548
549 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP_ICON "%s", fname);
550 return 0;
551 }
552
553
hs20_continue_icon_fetch(void * eloop_ctx,void * sock_ctx)554 static void hs20_continue_icon_fetch(void *eloop_ctx, void *sock_ctx)
555 {
556 struct wpa_supplicant *wpa_s = eloop_ctx;
557 if (wpa_s->fetch_osu_icon_in_progress)
558 hs20_next_osu_icon(wpa_s);
559 }
560
561
hs20_osu_icon_fetch_result(struct wpa_supplicant * wpa_s,int res)562 static void hs20_osu_icon_fetch_result(struct wpa_supplicant *wpa_s, int res)
563 {
564 size_t i, j;
565 struct os_reltime now, tmp;
566 int dur;
567
568 os_get_reltime(&now);
569 os_reltime_sub(&now, &wpa_s->osu_icon_fetch_start, &tmp);
570 dur = tmp.sec * 1000 + tmp.usec / 1000;
571 wpa_printf(MSG_DEBUG, "HS 2.0: Icon fetch dur=%d ms res=%d",
572 dur, res);
573
574 for (i = 0; i < wpa_s->osu_prov_count; i++) {
575 struct osu_provider *osu = &wpa_s->osu_prov[i];
576 for (j = 0; j < osu->icon_count; j++) {
577 struct osu_icon *icon = &osu->icon[j];
578 if (icon->id || icon->failed)
579 continue;
580 if (res < 0)
581 icon->failed = 1;
582 else
583 icon->id = wpa_s->osu_icon_id;
584 return;
585 }
586 }
587 }
588
589
hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 * sa,const u8 * data,size_t slen,u8 dialog_token)590 void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
591 struct wpa_bss *bss, const u8 *sa,
592 const u8 *data, size_t slen, u8 dialog_token)
593 {
594 const u8 *pos = data;
595 u8 subtype;
596 struct wpa_bss_anqp *anqp = NULL;
597 int ret;
598
599 if (slen < 2)
600 return;
601
602 if (bss)
603 anqp = bss->anqp;
604
605 subtype = *pos++;
606 slen--;
607
608 pos++; /* Reserved */
609 slen--;
610
611 switch (subtype) {
612 case HS20_STYPE_CAPABILITY_LIST:
613 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
614 " HS Capability List", MAC2STR(sa));
615 wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
616 if (anqp) {
617 wpabuf_free(anqp->hs20_capability_list);
618 anqp->hs20_capability_list =
619 wpabuf_alloc_copy(pos, slen);
620 }
621 break;
622 case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
623 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
624 " Operator Friendly Name", MAC2STR(sa));
625 wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
626 if (anqp) {
627 wpabuf_free(anqp->hs20_operator_friendly_name);
628 anqp->hs20_operator_friendly_name =
629 wpabuf_alloc_copy(pos, slen);
630 }
631 break;
632 case HS20_STYPE_WAN_METRICS:
633 wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
634 if (slen < 13) {
635 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
636 "Metrics value from " MACSTR, MAC2STR(sa));
637 break;
638 }
639 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
640 " WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
641 pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
642 pos[9], pos[10], WPA_GET_LE16(pos + 11));
643 if (anqp) {
644 wpabuf_free(anqp->hs20_wan_metrics);
645 anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
646 }
647 break;
648 case HS20_STYPE_CONNECTION_CAPABILITY:
649 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
650 " Connection Capability", MAC2STR(sa));
651 wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
652 if (anqp) {
653 wpabuf_free(anqp->hs20_connection_capability);
654 anqp->hs20_connection_capability =
655 wpabuf_alloc_copy(pos, slen);
656 }
657 break;
658 case HS20_STYPE_OPERATING_CLASS:
659 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
660 " Operating Class", MAC2STR(sa));
661 wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
662 if (anqp) {
663 wpabuf_free(anqp->hs20_operating_class);
664 anqp->hs20_operating_class =
665 wpabuf_alloc_copy(pos, slen);
666 }
667 break;
668 case HS20_STYPE_OSU_PROVIDERS_LIST:
669 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
670 " OSU Providers list", MAC2STR(sa));
671 wpa_s->num_prov_found++;
672 if (anqp) {
673 wpabuf_free(anqp->hs20_osu_providers_list);
674 anqp->hs20_osu_providers_list =
675 wpabuf_alloc_copy(pos, slen);
676 }
677 break;
678 case HS20_STYPE_ICON_BINARY_FILE:
679 ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen,
680 dialog_token);
681 if (wpa_s->fetch_osu_icon_in_progress) {
682 hs20_osu_icon_fetch_result(wpa_s, ret);
683 eloop_cancel_timeout(hs20_continue_icon_fetch,
684 wpa_s, NULL);
685 eloop_register_timeout(0, 0, hs20_continue_icon_fetch,
686 wpa_s, NULL);
687 }
688 break;
689 case HS20_STYPE_OPERATOR_ICON_METADATA:
690 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
691 " Operator Icon Metadata", MAC2STR(sa));
692 wpa_hexdump(MSG_DEBUG, "Operator Icon Metadata", pos, slen);
693 if (anqp) {
694 wpabuf_free(anqp->hs20_operator_icon_metadata);
695 anqp->hs20_operator_icon_metadata =
696 wpabuf_alloc_copy(pos, slen);
697 }
698 break;
699 case HS20_STYPE_OSU_PROVIDERS_NAI_LIST:
700 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
701 " OSU Providers NAI List", MAC2STR(sa));
702 if (anqp) {
703 wpabuf_free(anqp->hs20_osu_providers_nai_list);
704 anqp->hs20_osu_providers_nai_list =
705 wpabuf_alloc_copy(pos, slen);
706 }
707 break;
708 default:
709 wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);
710 break;
711 }
712 }
713
714
hs20_notify_parse_done(struct wpa_supplicant * wpa_s)715 void hs20_notify_parse_done(struct wpa_supplicant *wpa_s)
716 {
717 if (!wpa_s->fetch_osu_icon_in_progress)
718 return;
719 if (eloop_is_timeout_registered(hs20_continue_icon_fetch, wpa_s, NULL))
720 return;
721 /*
722 * We are going through icon fetch, but no icon response was received.
723 * Assume this means the current AP could not provide an answer to avoid
724 * getting stuck in fetch iteration.
725 */
726 hs20_icon_fetch_failed(wpa_s);
727 }
728
729
hs20_free_osu_prov_entry(struct osu_provider * prov)730 static void hs20_free_osu_prov_entry(struct osu_provider *prov)
731 {
732 }
733
734
hs20_free_osu_prov(struct wpa_supplicant * wpa_s)735 void hs20_free_osu_prov(struct wpa_supplicant *wpa_s)
736 {
737 size_t i;
738 for (i = 0; i < wpa_s->osu_prov_count; i++)
739 hs20_free_osu_prov_entry(&wpa_s->osu_prov[i]);
740 os_free(wpa_s->osu_prov);
741 wpa_s->osu_prov = NULL;
742 wpa_s->osu_prov_count = 0;
743 }
744
745
hs20_osu_fetch_done(struct wpa_supplicant * wpa_s)746 static void hs20_osu_fetch_done(struct wpa_supplicant *wpa_s)
747 {
748 char fname[256];
749 FILE *f;
750 size_t i, j;
751
752 wpa_s->fetch_osu_info = 0;
753 wpa_s->fetch_osu_icon_in_progress = 0;
754
755 if (wpa_s->conf->osu_dir == NULL) {
756 hs20_free_osu_prov(wpa_s);
757 wpa_s->fetch_anqp_in_progress = 0;
758 return;
759 }
760
761 snprintf(fname, sizeof(fname), "%s/osu-providers.txt",
762 wpa_s->conf->osu_dir);
763 f = fopen(fname, "w");
764 if (f == NULL) {
765 wpa_msg(wpa_s, MSG_INFO,
766 "Could not write OSU provider information");
767 hs20_free_osu_prov(wpa_s);
768 wpa_s->fetch_anqp_in_progress = 0;
769 return;
770 }
771
772 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
773
774 for (i = 0; i < wpa_s->osu_prov_count; i++) {
775 struct osu_provider *osu = &wpa_s->osu_prov[i];
776 if (i > 0)
777 fprintf(f, "\n");
778 fprintf(f, "OSU-PROVIDER " MACSTR "\n"
779 "uri=%s\n"
780 "methods=%08x\n",
781 MAC2STR(osu->bssid), osu->server_uri, osu->osu_methods);
782 if (osu->osu_ssid_len) {
783 fprintf(f, "osu_ssid=%s\n",
784 wpa_ssid_txt(osu->osu_ssid,
785 osu->osu_ssid_len));
786 }
787 if (osu->osu_ssid2_len) {
788 fprintf(f, "osu_ssid2=%s\n",
789 wpa_ssid_txt(osu->osu_ssid2,
790 osu->osu_ssid2_len));
791 }
792 if (osu->osu_nai[0])
793 fprintf(f, "osu_nai=%s\n", osu->osu_nai);
794 if (osu->osu_nai2[0])
795 fprintf(f, "osu_nai2=%s\n", osu->osu_nai2);
796 for (j = 0; j < osu->friendly_name_count; j++) {
797 fprintf(f, "friendly_name=%s:%s\n",
798 osu->friendly_name[j].lang,
799 osu->friendly_name[j].text);
800 }
801 for (j = 0; j < osu->serv_desc_count; j++) {
802 fprintf(f, "desc=%s:%s\n",
803 osu->serv_desc[j].lang,
804 osu->serv_desc[j].text);
805 }
806 for (j = 0; j < osu->icon_count; j++) {
807 struct osu_icon *icon = &osu->icon[j];
808 if (icon->failed)
809 continue; /* could not fetch icon */
810 fprintf(f, "icon=%u:%u:%u:%s:%s:%s\n",
811 icon->id, icon->width, icon->height, icon->lang,
812 icon->icon_type, icon->filename);
813 }
814 }
815 fclose(f);
816 hs20_free_osu_prov(wpa_s);
817
818 wpa_msg(wpa_s, MSG_INFO, "OSU provider fetch completed");
819 wpa_s->fetch_anqp_in_progress = 0;
820 }
821
822
hs20_next_osu_icon(struct wpa_supplicant * wpa_s)823 void hs20_next_osu_icon(struct wpa_supplicant *wpa_s)
824 {
825 size_t i, j;
826
827 wpa_printf(MSG_DEBUG, "HS 2.0: Ready to fetch next icon");
828
829 for (i = 0; i < wpa_s->osu_prov_count; i++) {
830 struct osu_provider *osu = &wpa_s->osu_prov[i];
831 for (j = 0; j < osu->icon_count; j++) {
832 struct osu_icon *icon = &osu->icon[j];
833 if (icon->id || icon->failed)
834 continue;
835
836 wpa_printf(MSG_DEBUG, "HS 2.0: Try to fetch icon '%s' "
837 "from " MACSTR, icon->filename,
838 MAC2STR(osu->bssid));
839 os_get_reltime(&wpa_s->osu_icon_fetch_start);
840 if (hs20_anqp_send_req(wpa_s, osu->bssid,
841 BIT(HS20_STYPE_ICON_REQUEST),
842 (u8 *) icon->filename,
843 os_strlen(icon->filename),
844 0) < 0) {
845 icon->failed = 1;
846 continue;
847 }
848 return;
849 }
850 }
851
852 wpa_printf(MSG_DEBUG, "HS 2.0: No more icons to fetch");
853 hs20_osu_fetch_done(wpa_s);
854 }
855
856
hs20_osu_add_prov(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 * osu_ssid,u8 osu_ssid_len,const u8 * osu_ssid2,u8 osu_ssid2_len,const u8 * pos,size_t len)857 static void hs20_osu_add_prov(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
858 const u8 *osu_ssid, u8 osu_ssid_len,
859 const u8 *osu_ssid2, u8 osu_ssid2_len,
860 const u8 *pos, size_t len)
861 {
862 struct osu_provider *prov;
863 const u8 *end = pos + len;
864 u16 len2;
865 const u8 *pos2;
866 u8 uri_len, osu_method_len, osu_nai_len;
867
868 wpa_hexdump(MSG_DEBUG, "HS 2.0: Parsing OSU Provider", pos, len);
869 prov = os_realloc_array(wpa_s->osu_prov,
870 wpa_s->osu_prov_count + 1,
871 sizeof(*prov));
872 if (prov == NULL)
873 return;
874 wpa_s->osu_prov = prov;
875 prov = &prov[wpa_s->osu_prov_count];
876 os_memset(prov, 0, sizeof(*prov));
877
878 os_memcpy(prov->bssid, bss->bssid, ETH_ALEN);
879 os_memcpy(prov->osu_ssid, osu_ssid, osu_ssid_len);
880 prov->osu_ssid_len = osu_ssid_len;
881 if (osu_ssid2)
882 os_memcpy(prov->osu_ssid2, osu_ssid2, osu_ssid2_len);
883 prov->osu_ssid2_len = osu_ssid2_len;
884
885 /* OSU Friendly Name Length */
886 if (end - pos < 2) {
887 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
888 "Friendly Name Length");
889 return;
890 }
891 len2 = WPA_GET_LE16(pos);
892 pos += 2;
893 if (len2 > end - pos) {
894 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
895 "Friendly Name Duples");
896 return;
897 }
898 pos2 = pos;
899 pos += len2;
900
901 /* OSU Friendly Name Duples */
902 while (pos - pos2 >= 4 && prov->friendly_name_count < OSU_MAX_ITEMS) {
903 struct osu_lang_string *f;
904 u8 slen;
905
906 slen = pos2[0];
907 if (1 + slen > pos - pos2) {
908 wpa_printf(MSG_DEBUG, "Invalid OSU Friendly Name");
909 break;
910 }
911 if (slen < 3) {
912 wpa_printf(MSG_DEBUG,
913 "Invalid OSU Friendly Name (no room for language)");
914 break;
915 }
916 f = &prov->friendly_name[prov->friendly_name_count++];
917 pos2++;
918 os_memcpy(f->lang, pos2, 3);
919 pos2 += 3;
920 slen -= 3;
921 os_memcpy(f->text, pos2, slen);
922 pos2 += slen;
923 }
924
925 /* OSU Server URI */
926 if (end - pos < 1) {
927 wpa_printf(MSG_DEBUG,
928 "HS 2.0: Not enough room for OSU Server URI length");
929 return;
930 }
931 uri_len = *pos++;
932 if (uri_len > end - pos) {
933 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Server "
934 "URI");
935 return;
936 }
937 os_memcpy(prov->server_uri, pos, uri_len);
938 pos += uri_len;
939
940 /* OSU Method list */
941 if (end - pos < 1) {
942 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
943 "list length");
944 return;
945 }
946 osu_method_len = pos[0];
947 if (osu_method_len > end - pos - 1) {
948 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
949 "list");
950 return;
951 }
952 pos2 = pos + 1;
953 pos += 1 + osu_method_len;
954 while (pos2 < pos) {
955 if (*pos2 < 32)
956 prov->osu_methods |= BIT(*pos2);
957 pos2++;
958 }
959
960 /* Icons Available Length */
961 if (end - pos < 2) {
962 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
963 "Available Length");
964 return;
965 }
966 len2 = WPA_GET_LE16(pos);
967 pos += 2;
968 if (len2 > end - pos) {
969 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
970 "Available");
971 return;
972 }
973 pos2 = pos;
974 pos += len2;
975
976 /* Icons Available */
977 while (pos2 < pos) {
978 struct osu_icon *icon = &prov->icon[prov->icon_count];
979 u8 flen;
980
981 if (2 + 2 + 3 + 1 + 1 > pos - pos2) {
982 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid Icon Metadata");
983 break;
984 }
985
986 icon->width = WPA_GET_LE16(pos2);
987 pos2 += 2;
988 icon->height = WPA_GET_LE16(pos2);
989 pos2 += 2;
990 os_memcpy(icon->lang, pos2, 3);
991 pos2 += 3;
992
993 flen = *pos2++;
994 if (flen > pos - pos2) {
995 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon Type");
996 break;
997 }
998 os_memcpy(icon->icon_type, pos2, flen);
999 pos2 += flen;
1000
1001 if (pos - pos2 < 1) {
1002 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
1003 "Filename length");
1004 break;
1005 }
1006 flen = *pos2++;
1007 if (flen > pos - pos2) {
1008 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
1009 "Filename");
1010 break;
1011 }
1012 os_memcpy(icon->filename, pos2, flen);
1013 pos2 += flen;
1014
1015 prov->icon_count++;
1016 }
1017
1018 /* OSU_NAI */
1019 if (end - pos < 1) {
1020 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
1021 return;
1022 }
1023 osu_nai_len = *pos++;
1024 if (osu_nai_len > end - pos) {
1025 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
1026 return;
1027 }
1028 os_memcpy(prov->osu_nai, pos, osu_nai_len);
1029 pos += osu_nai_len;
1030
1031 /* OSU Service Description Length */
1032 if (end - pos < 2) {
1033 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
1034 "Service Description Length");
1035 return;
1036 }
1037 len2 = WPA_GET_LE16(pos);
1038 pos += 2;
1039 if (len2 > end - pos) {
1040 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
1041 "Service Description Duples");
1042 return;
1043 }
1044 pos2 = pos;
1045 pos += len2;
1046
1047 /* OSU Service Description Duples */
1048 while (pos - pos2 >= 4 && prov->serv_desc_count < OSU_MAX_ITEMS) {
1049 struct osu_lang_string *f;
1050 u8 descr_len;
1051
1052 descr_len = *pos2++;
1053 if (descr_len > pos - pos2 || descr_len < 3) {
1054 wpa_printf(MSG_DEBUG, "Invalid OSU Service "
1055 "Description");
1056 break;
1057 }
1058 f = &prov->serv_desc[prov->serv_desc_count++];
1059 os_memcpy(f->lang, pos2, 3);
1060 os_memcpy(f->text, pos2 + 3, descr_len - 3);
1061 pos2 += descr_len;
1062 }
1063
1064 wpa_printf(MSG_DEBUG, "HS 2.0: Added OSU Provider through " MACSTR,
1065 MAC2STR(bss->bssid));
1066 wpa_s->osu_prov_count++;
1067 }
1068
1069
hs20_osu_icon_fetch(struct wpa_supplicant * wpa_s)1070 void hs20_osu_icon_fetch(struct wpa_supplicant *wpa_s)
1071 {
1072 struct wpa_bss *bss;
1073 struct wpabuf *prov_anqp;
1074 const u8 *pos, *end;
1075 u16 len;
1076 const u8 *osu_ssid, *osu_ssid2;
1077 u8 osu_ssid_len, osu_ssid2_len;
1078 u8 num_providers;
1079
1080 hs20_free_osu_prov(wpa_s);
1081
1082 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1083 struct wpa_ie_data data;
1084 const u8 *ie;
1085
1086 if (bss->anqp == NULL)
1087 continue;
1088 prov_anqp = bss->anqp->hs20_osu_providers_list;
1089 if (prov_anqp == NULL)
1090 continue;
1091 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1092 if (ie && wpa_parse_wpa_ie(ie, 2 + ie[1], &data) == 0 &&
1093 (data.key_mgmt & WPA_KEY_MGMT_OSEN)) {
1094 osu_ssid2 = bss->ssid;
1095 osu_ssid2_len = bss->ssid_len;
1096 } else {
1097 osu_ssid2 = NULL;
1098 osu_ssid2_len = 0;
1099 }
1100 wpa_printf(MSG_DEBUG, "HS 2.0: Parsing OSU Providers list from "
1101 MACSTR, MAC2STR(bss->bssid));
1102 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers list",
1103 prov_anqp);
1104 pos = wpabuf_head(prov_anqp);
1105 end = pos + wpabuf_len(prov_anqp);
1106
1107 /* OSU SSID */
1108 if (end - pos < 1)
1109 continue;
1110 if (1 + pos[0] > end - pos) {
1111 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1112 "OSU SSID");
1113 continue;
1114 }
1115 osu_ssid_len = *pos++;
1116 if (osu_ssid_len > SSID_MAX_LEN) {
1117 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid OSU SSID "
1118 "Length %u", osu_ssid_len);
1119 continue;
1120 }
1121 osu_ssid = pos;
1122 pos += osu_ssid_len;
1123
1124 if (end - pos < 1) {
1125 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1126 "Number of OSU Providers");
1127 continue;
1128 }
1129 num_providers = *pos++;
1130 wpa_printf(MSG_DEBUG, "HS 2.0: Number of OSU Providers: %u",
1131 num_providers);
1132
1133 /* OSU Providers */
1134 while (end - pos > 2 && num_providers > 0) {
1135 num_providers--;
1136 len = WPA_GET_LE16(pos);
1137 pos += 2;
1138 if (len > (unsigned int) (end - pos))
1139 break;
1140 hs20_osu_add_prov(wpa_s, bss, osu_ssid,
1141 osu_ssid_len, osu_ssid2,
1142 osu_ssid2_len, pos, len);
1143 pos += len;
1144 }
1145
1146 if (pos != end) {
1147 wpa_printf(MSG_DEBUG, "HS 2.0: Ignored %d bytes of "
1148 "extra data after OSU Providers",
1149 (int) (end - pos));
1150 }
1151
1152 prov_anqp = bss->anqp->hs20_osu_providers_nai_list;
1153 if (!prov_anqp)
1154 continue;
1155 wpa_printf(MSG_DEBUG,
1156 "HS 2.0: Parsing OSU Providers NAI List from "
1157 MACSTR, MAC2STR(bss->bssid));
1158 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers NAI List",
1159 prov_anqp);
1160 pos = wpabuf_head(prov_anqp);
1161 end = pos + wpabuf_len(prov_anqp);
1162 num_providers = 0;
1163 while (end - pos > 0) {
1164 len = *pos++;
1165 if (end - pos < len) {
1166 wpa_printf(MSG_DEBUG,
1167 "HS 2.0: Not enough room for OSU_NAI");
1168 break;
1169 }
1170 if (num_providers >= wpa_s->osu_prov_count) {
1171 wpa_printf(MSG_DEBUG,
1172 "HS 2.0: Ignore unexpected OSU Provider NAI List entries");
1173 break;
1174 }
1175 os_memcpy(wpa_s->osu_prov[num_providers].osu_nai2,
1176 pos, len);
1177 pos += len;
1178 num_providers++;
1179 }
1180 }
1181
1182 wpa_s->fetch_osu_icon_in_progress = 1;
1183 hs20_next_osu_icon(wpa_s);
1184 }
1185
1186
hs20_osu_scan_res_handler(struct wpa_supplicant * wpa_s,struct wpa_scan_results * scan_res)1187 static void hs20_osu_scan_res_handler(struct wpa_supplicant *wpa_s,
1188 struct wpa_scan_results *scan_res)
1189 {
1190 wpa_printf(MSG_DEBUG, "OSU provisioning fetch scan completed");
1191 if (!wpa_s->fetch_osu_waiting_scan) {
1192 wpa_printf(MSG_DEBUG, "OSU fetch have been canceled");
1193 return;
1194 }
1195 wpa_s->network_select = 0;
1196 wpa_s->fetch_all_anqp = 1;
1197 wpa_s->fetch_osu_info = 1;
1198 wpa_s->fetch_osu_icon_in_progress = 0;
1199
1200 interworking_start_fetch_anqp(wpa_s);
1201 }
1202
1203
hs20_fetch_osu(struct wpa_supplicant * wpa_s,int skip_scan)1204 int hs20_fetch_osu(struct wpa_supplicant *wpa_s, int skip_scan)
1205 {
1206 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1207 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1208 "interface disabled");
1209 return -1;
1210 }
1211
1212 if (wpa_s->scanning) {
1213 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1214 "scanning");
1215 return -1;
1216 }
1217
1218 if (wpa_s->conf->osu_dir == NULL) {
1219 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1220 "osu_dir not configured");
1221 return -1;
1222 }
1223
1224 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) {
1225 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1226 "fetch in progress (%d, %d)",
1227 wpa_s->fetch_anqp_in_progress,
1228 wpa_s->network_select);
1229 return -1;
1230 }
1231
1232 wpa_msg(wpa_s, MSG_INFO, "Starting OSU provisioning information fetch");
1233 wpa_s->num_osu_scans = 0;
1234 wpa_s->num_prov_found = 0;
1235 if (skip_scan) {
1236 wpa_s->network_select = 0;
1237 wpa_s->fetch_all_anqp = 1;
1238 wpa_s->fetch_osu_info = 1;
1239 wpa_s->fetch_osu_icon_in_progress = 0;
1240
1241 interworking_start_fetch_anqp(wpa_s);
1242 } else {
1243 hs20_start_osu_scan(wpa_s);
1244 }
1245
1246 return 0;
1247 }
1248
1249
hs20_start_osu_scan(struct wpa_supplicant * wpa_s)1250 void hs20_start_osu_scan(struct wpa_supplicant *wpa_s)
1251 {
1252 wpa_s->fetch_osu_waiting_scan = 1;
1253 wpa_s->num_osu_scans++;
1254 wpa_s->scan_req = MANUAL_SCAN_REQ;
1255 wpa_s->scan_res_handler = hs20_osu_scan_res_handler;
1256 wpa_supplicant_req_scan(wpa_s, 0, 0);
1257 }
1258
1259
hs20_cancel_fetch_osu(struct wpa_supplicant * wpa_s)1260 void hs20_cancel_fetch_osu(struct wpa_supplicant *wpa_s)
1261 {
1262 wpa_printf(MSG_DEBUG, "Cancel OSU fetch");
1263 interworking_stop_fetch_anqp(wpa_s);
1264 wpa_s->fetch_osu_waiting_scan = 0;
1265 wpa_s->network_select = 0;
1266 wpa_s->fetch_osu_info = 0;
1267 wpa_s->fetch_osu_icon_in_progress = 0;
1268 }
1269
1270
hs20_icon_fetch_failed(struct wpa_supplicant * wpa_s)1271 void hs20_icon_fetch_failed(struct wpa_supplicant *wpa_s)
1272 {
1273 hs20_osu_icon_fetch_result(wpa_s, -1);
1274 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1275 eloop_register_timeout(0, 0, hs20_continue_icon_fetch, wpa_s, NULL);
1276 }
1277
1278
hs20_rx_subscription_remediation(struct wpa_supplicant * wpa_s,const char * url,u8 osu_method)1279 void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
1280 const char *url, u8 osu_method)
1281 {
1282 if (url)
1283 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION "%u %s",
1284 osu_method, url);
1285 else
1286 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
1287 }
1288
1289
hs20_rx_deauth_imminent_notice(struct wpa_supplicant * wpa_s,u8 code,u16 reauth_delay,const char * url)1290 void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
1291 u16 reauth_delay, const char *url)
1292 {
1293 if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1294 wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
1295 return;
1296 }
1297
1298 wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
1299 code, reauth_delay, url);
1300
1301 if (code == HS20_DEAUTH_REASON_CODE_BSS) {
1302 wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to ignore list");
1303 wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
1304 /* TODO: For now, disable full ESS since some drivers may not
1305 * support disabling per BSS. */
1306 if (wpa_s->current_ssid) {
1307 struct os_reltime now;
1308 os_get_reltime(&now);
1309 if (now.sec + reauth_delay <=
1310 wpa_s->current_ssid->disabled_until.sec)
1311 return;
1312 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds (BSS)",
1313 reauth_delay);
1314 wpa_s->current_ssid->disabled_until.sec =
1315 now.sec + reauth_delay;
1316 }
1317 }
1318
1319 if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
1320 struct os_reltime now;
1321 os_get_reltime(&now);
1322 if (now.sec + reauth_delay <=
1323 wpa_s->current_ssid->disabled_until.sec)
1324 return;
1325 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
1326 reauth_delay);
1327 wpa_s->current_ssid->disabled_until.sec =
1328 now.sec + reauth_delay;
1329 }
1330 }
1331
1332
hs20_rx_t_c_acceptance(struct wpa_supplicant * wpa_s,const char * url)1333 void hs20_rx_t_c_acceptance(struct wpa_supplicant *wpa_s, const char *url)
1334 {
1335 if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1336 wpa_printf(MSG_DEBUG,
1337 "HS 2.0: Ignore Terms and Conditions Acceptance since PMF was not enabled");
1338 return;
1339 }
1340
1341 wpa_msg(wpa_s, MSG_INFO, HS20_T_C_ACCEPTANCE "%s", url);
1342 }
1343
1344
hs20_init(struct wpa_supplicant * wpa_s)1345 void hs20_init(struct wpa_supplicant *wpa_s)
1346 {
1347 dl_list_init(&wpa_s->icon_head);
1348 }
1349
1350
hs20_deinit(struct wpa_supplicant * wpa_s)1351 void hs20_deinit(struct wpa_supplicant *wpa_s)
1352 {
1353 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1354 hs20_free_osu_prov(wpa_s);
1355 if (wpa_s->icon_head.next)
1356 hs20_del_icon(wpa_s, NULL, NULL);
1357 }
1358
