2 * Copyright (c) 2009, Atheros Communications, Inc.
3 * Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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"
24 #include "blacklist.h"
25 #include "gas_query.h"
26 #include "interworking.h"
27 #include "hs20_supplicant.h"
31 #define OSU_MAX_ITEMS 10
33 struct osu_lang_string {
45 unsigned int failed:1;
50 u8 osu_ssid[SSID_MAX_LEN];
53 u32 osu_methods; /* bit 0 = OMA-DM, bit 1 = SOAP-XML SPP */
55 struct osu_lang_string friendly_name[OSU_MAX_ITEMS];
56 size_t friendly_name_count;
57 struct osu_lang_string serv_desc[OSU_MAX_ITEMS];
58 size_t serv_desc_count;
59 struct osu_icon icon[OSU_MAX_ITEMS];
64 void wpas_hs20_add_indication(struct wpabuf *buf, int pps_mo_id)
68 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
69 wpabuf_put_u8(buf, pps_mo_id >= 0 ? 7 : 5);
70 wpabuf_put_be24(buf, OUI_WFA);
71 wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
74 conf |= HS20_PPS_MO_ID_PRESENT;
75 wpabuf_put_u8(buf, conf);
77 wpabuf_put_le16(buf, pps_mo_id);
81 int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
84 if (!wpa_s->conf->hs20 || !ssid)
87 if (ssid->parent_cred)
90 if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
94 * This may catch some non-Hotspot 2.0 cases, but it is safer to do that
95 * than cause Hotspot 2.0 connections without indication element getting
96 * added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
99 if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
101 if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
103 if (ssid->proto != WPA_PROTO_RSN)
110 int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
112 struct wpa_cred *cred;
117 if (ssid->update_identifier)
118 return ssid->update_identifier;
120 if (ssid->parent_cred == NULL)
123 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
124 if (ssid->parent_cred == cred)
125 return cred->update_identifier;
132 void hs20_put_anqp_req(u32 stypes, const u8 *payload, size_t payload_len,
140 len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
141 wpabuf_put_be24(buf, OUI_WFA);
142 wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
143 if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
144 wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
145 wpabuf_put_u8(buf, 0); /* Reserved */
147 wpabuf_put_data(buf, payload, payload_len);
148 } else if (stypes == BIT(HS20_STYPE_ICON_REQUEST)) {
149 wpabuf_put_u8(buf, HS20_STYPE_ICON_REQUEST);
150 wpabuf_put_u8(buf, 0); /* Reserved */
152 wpabuf_put_data(buf, payload, payload_len);
155 wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
156 wpabuf_put_u8(buf, 0); /* Reserved */
157 for (i = 0; i < 32; i++) {
159 wpabuf_put_u8(buf, i);
162 gas_anqp_set_element_len(buf, len_pos);
164 gas_anqp_set_len(buf);
168 struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
173 buf = gas_anqp_build_initial_req(0, 100 + payload_len);
177 hs20_put_anqp_req(stypes, payload, payload_len, buf);
183 int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
184 const u8 *payload, size_t payload_len, int inmem)
191 struct icon_entry *icon_entry;
193 bss = wpa_bss_get_bssid(wpa_s, dst);
195 wpa_printf(MSG_WARNING,
196 "ANQP: Cannot send query to unknown BSS "
197 MACSTR, MAC2STR(dst));
201 wpa_bss_anqp_unshare_alloc(bss);
204 wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
205 "subtypes 0x%x", MAC2STR(dst), stypes);
207 buf = hs20_build_anqp_req(stypes, payload, payload_len);
211 res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
213 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
217 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
221 icon_entry = os_zalloc(sizeof(struct icon_entry));
224 os_memcpy(icon_entry->bssid, dst, ETH_ALEN);
225 icon_entry->file_name = os_malloc(payload_len + 1);
226 if (!icon_entry->file_name) {
230 os_memcpy(icon_entry->file_name, payload, payload_len);
231 icon_entry->file_name[payload_len] = '\0';
232 icon_entry->dialog_token = res;
234 dl_list_add(&wpa_s->icon_head, &icon_entry->list);
241 static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
243 const char *file_name)
245 struct icon_entry *icon;
247 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
248 if (os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0 &&
249 os_strcmp(icon->file_name, file_name) == 0 && icon->image)
257 int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
258 const char *file_name, size_t offset, size_t size,
259 char *reply, size_t buf_len)
261 struct icon_entry *icon;
267 wpa_printf(MSG_DEBUG, "HS20: Get icon " MACSTR " %s @ %u +%u (%u)",
268 MAC2STR(bssid), file_name, (unsigned int) offset,
269 (unsigned int) size, (unsigned int) buf_len);
271 icon = hs20_find_icon(wpa_s, bssid, file_name);
272 if (!icon || !icon->image || offset >= icon->image_len)
274 if (size > icon->image_len - offset)
275 size = icon->image_len - offset;
276 out_size = buf_len - 3 /* max base64 padding */;
277 if (size * 4 > out_size * 3)
278 size = out_size * 3 / 4;
282 b64 = base64_encode(&icon->image[offset], size, &b64_size);
283 if (buf_len >= b64_size) {
284 os_memcpy(reply, b64, b64_size);
285 reply_size = b64_size;
294 static void hs20_free_icon_entry(struct icon_entry *icon)
296 wpa_printf(MSG_DEBUG, "HS20: Free stored icon from " MACSTR
297 " dialog_token=%u file_name=%s image_len=%u",
298 MAC2STR(icon->bssid), icon->dialog_token,
299 icon->file_name ? icon->file_name : "N/A",
300 (unsigned int) icon->image_len);
301 os_free(icon->file_name);
302 os_free(icon->image);
307 int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
308 const char *file_name)
310 struct icon_entry *icon, *tmp;
314 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons");
316 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons for "
317 MACSTR, MAC2STR(bssid));
319 wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
320 MACSTR " file name %s", MAC2STR(bssid), file_name);
322 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
324 if ((!bssid || os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0) &&
326 os_strcmp(icon->file_name, file_name) == 0)) {
327 dl_list_del(&icon->list);
328 hs20_free_icon_entry(icon);
332 return count == 0 ? -1 : 0;
336 static void hs20_set_osu_access_permission(const char *osu_dir,
341 /* Get OSU directory information */
342 if (stat(osu_dir, &statbuf) < 0) {
343 wpa_printf(MSG_WARNING, "Cannot stat the OSU directory %s",
348 if (chmod(fname, statbuf.st_mode) < 0) {
349 wpa_printf(MSG_WARNING,
350 "Cannot change the permissions for %s", fname);
354 if (chown(fname, statbuf.st_uid, statbuf.st_gid) < 0) {
355 wpa_printf(MSG_WARNING, "Cannot change the ownership for %s",
361 static void hs20_remove_duplicate_icons(struct wpa_supplicant *wpa_s,
362 struct icon_entry *new_icon)
364 struct icon_entry *icon, *tmp;
366 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
368 if (icon == new_icon)
370 if (os_memcmp(icon->bssid, new_icon->bssid, ETH_ALEN) == 0 &&
371 os_strcmp(icon->file_name, new_icon->file_name) == 0) {
372 dl_list_del(&icon->list);
373 hs20_free_icon_entry(icon);
379 static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
380 const u8 *sa, const u8 *pos,
381 size_t slen, u8 dialog_token)
387 struct icon_entry *icon;
389 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
390 if (icon->dialog_token == dialog_token && !icon->image &&
391 os_memcmp(icon->bssid, sa, ETH_ALEN) == 0) {
392 icon->image = os_malloc(slen);
395 os_memcpy(icon->image, pos, slen);
396 icon->image_len = slen;
397 hs20_remove_duplicate_icons(wpa_s, icon);
398 wpa_msg(wpa_s, MSG_INFO,
399 "RX-HS20-ICON " MACSTR " %s %u",
400 MAC2STR(sa), icon->file_name,
401 (unsigned int) icon->image_len);
406 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR " Icon Binary File",
410 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
411 "value from " MACSTR, MAC2STR(sa));
415 wpa_printf(MSG_DEBUG, "HS 2.0: Download Status Code %u", *pos);
421 if ((size_t) 1 + pos[0] > slen) {
422 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
423 "value from " MACSTR, MAC2STR(sa));
426 wpa_hexdump_ascii(MSG_DEBUG, "Icon Type", pos + 1, pos[0]);
427 png = os_strncasecmp((char *) pos + 1, "image/png", 9) == 0;
432 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
433 "value from " MACSTR, MAC2STR(sa));
436 data_len = WPA_GET_LE16(pos);
440 if (data_len > slen) {
441 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
442 "value from " MACSTR, MAC2STR(sa));
446 wpa_printf(MSG_DEBUG, "Icon Binary Data: %u bytes", data_len);
447 if (wpa_s->conf->osu_dir == NULL)
450 wpa_s->osu_icon_id++;
451 if (wpa_s->osu_icon_id == 0)
452 wpa_s->osu_icon_id++;
453 snprintf(fname, sizeof(fname), "%s/osu-icon-%u.%s",
454 wpa_s->conf->osu_dir, wpa_s->osu_icon_id,
455 png ? "png" : "icon");
456 f = fopen(fname, "wb");
460 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
462 if (fwrite(pos, slen, 1, f) != 1) {
469 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP-ICON %s", fname);
474 static void hs20_continue_icon_fetch(void *eloop_ctx, void *sock_ctx)
476 struct wpa_supplicant *wpa_s = eloop_ctx;
477 if (wpa_s->fetch_osu_icon_in_progress)
478 hs20_next_osu_icon(wpa_s);
482 static void hs20_osu_icon_fetch_result(struct wpa_supplicant *wpa_s, int res)
485 struct os_reltime now, tmp;
488 os_get_reltime(&now);
489 os_reltime_sub(&now, &wpa_s->osu_icon_fetch_start, &tmp);
490 dur = tmp.sec * 1000 + tmp.usec / 1000;
491 wpa_printf(MSG_DEBUG, "HS 2.0: Icon fetch dur=%d ms res=%d",
494 for (i = 0; i < wpa_s->osu_prov_count; i++) {
495 struct osu_provider *osu = &wpa_s->osu_prov[i];
496 for (j = 0; j < osu->icon_count; j++) {
497 struct osu_icon *icon = &osu->icon[j];
498 if (icon->id || icon->failed)
503 icon->id = wpa_s->osu_icon_id;
510 void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
511 struct wpa_bss *bss, const u8 *sa,
512 const u8 *data, size_t slen, u8 dialog_token)
514 const u8 *pos = data;
516 struct wpa_bss_anqp *anqp = NULL;
528 pos++; /* Reserved */
532 case HS20_STYPE_CAPABILITY_LIST:
533 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
534 " HS Capability List", MAC2STR(sa));
535 wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
537 wpabuf_free(anqp->hs20_capability_list);
538 anqp->hs20_capability_list =
539 wpabuf_alloc_copy(pos, slen);
542 case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
543 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
544 " Operator Friendly Name", MAC2STR(sa));
545 wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
547 wpabuf_free(anqp->hs20_operator_friendly_name);
548 anqp->hs20_operator_friendly_name =
549 wpabuf_alloc_copy(pos, slen);
552 case HS20_STYPE_WAN_METRICS:
553 wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
555 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
556 "Metrics value from " MACSTR, MAC2STR(sa));
559 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
560 " WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
561 pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
562 pos[9], pos[10], WPA_GET_LE16(pos + 11));
564 wpabuf_free(anqp->hs20_wan_metrics);
565 anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
568 case HS20_STYPE_CONNECTION_CAPABILITY:
569 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
570 " Connection Capability", MAC2STR(sa));
571 wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
573 wpabuf_free(anqp->hs20_connection_capability);
574 anqp->hs20_connection_capability =
575 wpabuf_alloc_copy(pos, slen);
578 case HS20_STYPE_OPERATING_CLASS:
579 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
580 " Operating Class", MAC2STR(sa));
581 wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
583 wpabuf_free(anqp->hs20_operating_class);
584 anqp->hs20_operating_class =
585 wpabuf_alloc_copy(pos, slen);
588 case HS20_STYPE_OSU_PROVIDERS_LIST:
589 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
590 " OSU Providers list", MAC2STR(sa));
591 wpa_s->num_prov_found++;
593 wpabuf_free(anqp->hs20_osu_providers_list);
594 anqp->hs20_osu_providers_list =
595 wpabuf_alloc_copy(pos, slen);
598 case HS20_STYPE_ICON_BINARY_FILE:
599 ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen,
601 if (wpa_s->fetch_osu_icon_in_progress) {
602 hs20_osu_icon_fetch_result(wpa_s, ret);
603 eloop_cancel_timeout(hs20_continue_icon_fetch,
605 eloop_register_timeout(0, 0, hs20_continue_icon_fetch,
610 wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);
616 void hs20_notify_parse_done(struct wpa_supplicant *wpa_s)
618 if (!wpa_s->fetch_osu_icon_in_progress)
620 if (eloop_is_timeout_registered(hs20_continue_icon_fetch, wpa_s, NULL))
623 * We are going through icon fetch, but no icon response was received.
624 * Assume this means the current AP could not provide an answer to avoid
625 * getting stuck in fetch iteration.
627 hs20_icon_fetch_failed(wpa_s);
631 static void hs20_free_osu_prov_entry(struct osu_provider *prov)
636 void hs20_free_osu_prov(struct wpa_supplicant *wpa_s)
639 for (i = 0; i < wpa_s->osu_prov_count; i++)
640 hs20_free_osu_prov_entry(&wpa_s->osu_prov[i]);
641 os_free(wpa_s->osu_prov);
642 wpa_s->osu_prov = NULL;
643 wpa_s->osu_prov_count = 0;
647 static void hs20_osu_fetch_done(struct wpa_supplicant *wpa_s)
653 wpa_s->fetch_osu_info = 0;
654 wpa_s->fetch_osu_icon_in_progress = 0;
656 if (wpa_s->conf->osu_dir == NULL) {
657 hs20_free_osu_prov(wpa_s);
658 wpa_s->fetch_anqp_in_progress = 0;
662 snprintf(fname, sizeof(fname), "%s/osu-providers.txt",
663 wpa_s->conf->osu_dir);
664 f = fopen(fname, "w");
666 hs20_free_osu_prov(wpa_s);
670 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
672 for (i = 0; i < wpa_s->osu_prov_count; i++) {
673 struct osu_provider *osu = &wpa_s->osu_prov[i];
676 fprintf(f, "OSU-PROVIDER " MACSTR "\n"
679 MAC2STR(osu->bssid), osu->server_uri, osu->osu_methods);
680 if (osu->osu_ssid_len) {
681 fprintf(f, "osu_ssid=%s\n",
682 wpa_ssid_txt(osu->osu_ssid,
686 fprintf(f, "osu_nai=%s\n", osu->osu_nai);
687 for (j = 0; j < osu->friendly_name_count; j++) {
688 fprintf(f, "friendly_name=%s:%s\n",
689 osu->friendly_name[j].lang,
690 osu->friendly_name[j].text);
692 for (j = 0; j < osu->serv_desc_count; j++) {
693 fprintf(f, "desc=%s:%s\n",
694 osu->serv_desc[j].lang,
695 osu->serv_desc[j].text);
697 for (j = 0; j < osu->icon_count; j++) {
698 struct osu_icon *icon = &osu->icon[j];
700 continue; /* could not fetch icon */
701 fprintf(f, "icon=%u:%u:%u:%s:%s:%s\n",
702 icon->id, icon->width, icon->height, icon->lang,
703 icon->icon_type, icon->filename);
707 hs20_free_osu_prov(wpa_s);
709 wpa_msg(wpa_s, MSG_INFO, "OSU provider fetch completed");
710 wpa_s->fetch_anqp_in_progress = 0;
714 void hs20_next_osu_icon(struct wpa_supplicant *wpa_s)
718 wpa_printf(MSG_DEBUG, "HS 2.0: Ready to fetch next icon");
720 for (i = 0; i < wpa_s->osu_prov_count; i++) {
721 struct osu_provider *osu = &wpa_s->osu_prov[i];
722 for (j = 0; j < osu->icon_count; j++) {
723 struct osu_icon *icon = &osu->icon[j];
724 if (icon->id || icon->failed)
727 wpa_printf(MSG_DEBUG, "HS 2.0: Try to fetch icon '%s' "
728 "from " MACSTR, icon->filename,
729 MAC2STR(osu->bssid));
730 os_get_reltime(&wpa_s->osu_icon_fetch_start);
731 if (hs20_anqp_send_req(wpa_s, osu->bssid,
732 BIT(HS20_STYPE_ICON_REQUEST),
733 (u8 *) icon->filename,
734 os_strlen(icon->filename),
743 wpa_printf(MSG_DEBUG, "HS 2.0: No more icons to fetch");
744 hs20_osu_fetch_done(wpa_s);
748 static void hs20_osu_add_prov(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
749 const u8 *osu_ssid, u8 osu_ssid_len,
750 const u8 *pos, size_t len)
752 struct osu_provider *prov;
753 const u8 *end = pos + len;
756 u8 uri_len, osu_method_len, osu_nai_len;
758 wpa_hexdump(MSG_DEBUG, "HS 2.0: Parsing OSU Provider", pos, len);
759 prov = os_realloc_array(wpa_s->osu_prov,
760 wpa_s->osu_prov_count + 1,
764 wpa_s->osu_prov = prov;
765 prov = &prov[wpa_s->osu_prov_count];
766 os_memset(prov, 0, sizeof(*prov));
768 os_memcpy(prov->bssid, bss->bssid, ETH_ALEN);
769 os_memcpy(prov->osu_ssid, osu_ssid, osu_ssid_len);
770 prov->osu_ssid_len = osu_ssid_len;
772 /* OSU Friendly Name Length */
774 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
775 "Friendly Name Length");
778 len2 = WPA_GET_LE16(pos);
780 if (len2 > end - pos) {
781 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
782 "Friendly Name Duples");
788 /* OSU Friendly Name Duples */
789 while (pos - pos2 >= 4 && prov->friendly_name_count < OSU_MAX_ITEMS) {
790 struct osu_lang_string *f;
791 if (1 + pos2[0] > pos - pos2 || pos2[0] < 3) {
792 wpa_printf(MSG_DEBUG, "Invalid OSU Friendly Name");
795 f = &prov->friendly_name[prov->friendly_name_count++];
796 os_memcpy(f->lang, pos2 + 1, 3);
797 os_memcpy(f->text, pos2 + 1 + 3, pos2[0] - 3);
803 wpa_printf(MSG_DEBUG,
804 "HS 2.0: Not enough room for OSU Server URI length");
808 if (uri_len > end - pos) {
809 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Server "
813 os_memcpy(prov->server_uri, pos, uri_len);
816 /* OSU Method list */
818 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
822 osu_method_len = pos[0];
823 if (osu_method_len > end - pos - 1) {
824 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
829 pos += 1 + osu_method_len;
832 prov->osu_methods |= BIT(*pos2);
836 /* Icons Available Length */
838 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
842 len2 = WPA_GET_LE16(pos);
844 if (len2 > end - pos) {
845 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
852 /* Icons Available */
854 struct osu_icon *icon = &prov->icon[prov->icon_count];
857 if (2 + 2 + 3 + 1 + 1 > pos - pos2) {
858 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid Icon Metadata");
862 icon->width = WPA_GET_LE16(pos2);
864 icon->height = WPA_GET_LE16(pos2);
866 os_memcpy(icon->lang, pos2, 3);
870 if (flen > pos - pos2) {
871 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon Type");
874 os_memcpy(icon->icon_type, pos2, flen);
877 if (pos - pos2 < 1) {
878 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
883 if (flen > pos - pos2) {
884 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
888 os_memcpy(icon->filename, pos2, flen);
896 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
899 osu_nai_len = *pos++;
900 if (osu_nai_len > end - pos) {
901 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
904 os_memcpy(prov->osu_nai, pos, osu_nai_len);
907 /* OSU Service Description Length */
909 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
910 "Service Description Length");
913 len2 = WPA_GET_LE16(pos);
915 if (len2 > end - pos) {
916 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
917 "Service Description Duples");
923 /* OSU Service Description Duples */
924 while (pos - pos2 >= 4 && prov->serv_desc_count < OSU_MAX_ITEMS) {
925 struct osu_lang_string *f;
929 if (descr_len > pos - pos2 || descr_len < 3) {
930 wpa_printf(MSG_DEBUG, "Invalid OSU Service "
934 f = &prov->serv_desc[prov->serv_desc_count++];
935 os_memcpy(f->lang, pos2, 3);
936 os_memcpy(f->text, pos2 + 3, descr_len - 3);
940 wpa_printf(MSG_DEBUG, "HS 2.0: Added OSU Provider through " MACSTR,
941 MAC2STR(bss->bssid));
942 wpa_s->osu_prov_count++;
946 void hs20_osu_icon_fetch(struct wpa_supplicant *wpa_s)
949 struct wpabuf *prov_anqp;
956 hs20_free_osu_prov(wpa_s);
958 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
959 if (bss->anqp == NULL)
961 prov_anqp = bss->anqp->hs20_osu_providers_list;
962 if (prov_anqp == NULL)
964 wpa_printf(MSG_DEBUG, "HS 2.0: Parsing OSU Providers list from "
965 MACSTR, MAC2STR(bss->bssid));
966 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers list",
968 pos = wpabuf_head(prov_anqp);
969 end = pos + wpabuf_len(prov_anqp);
974 if (1 + pos[0] > end - pos) {
975 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
979 osu_ssid_len = *pos++;
980 if (osu_ssid_len > SSID_MAX_LEN) {
981 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid OSU SSID "
982 "Length %u", osu_ssid_len);
989 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
990 "Number of OSU Providers");
993 num_providers = *pos++;
994 wpa_printf(MSG_DEBUG, "HS 2.0: Number of OSU Providers: %u",
998 while (end - pos > 2 && num_providers > 0) {
1000 len = WPA_GET_LE16(pos);
1002 if (len > (unsigned int) (end - pos))
1004 hs20_osu_add_prov(wpa_s, bss, osu_ssid,
1005 osu_ssid_len, pos, len);
1010 wpa_printf(MSG_DEBUG, "HS 2.0: Ignored %d bytes of "
1011 "extra data after OSU Providers",
1016 wpa_s->fetch_osu_icon_in_progress = 1;
1017 hs20_next_osu_icon(wpa_s);
1021 static void hs20_osu_scan_res_handler(struct wpa_supplicant *wpa_s,
1022 struct wpa_scan_results *scan_res)
1024 wpa_printf(MSG_DEBUG, "OSU provisioning fetch scan completed");
1025 if (!wpa_s->fetch_osu_waiting_scan) {
1026 wpa_printf(MSG_DEBUG, "OSU fetch have been canceled");
1029 wpa_s->network_select = 0;
1030 wpa_s->fetch_all_anqp = 1;
1031 wpa_s->fetch_osu_info = 1;
1032 wpa_s->fetch_osu_icon_in_progress = 0;
1034 interworking_start_fetch_anqp(wpa_s);
1038 int hs20_fetch_osu(struct wpa_supplicant *wpa_s)
1040 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1041 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1042 "interface disabled");
1046 if (wpa_s->scanning) {
1047 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1052 if (wpa_s->conf->osu_dir == NULL) {
1053 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1054 "osu_dir not configured");
1058 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) {
1059 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1060 "fetch in progress (%d, %d)",
1061 wpa_s->fetch_anqp_in_progress,
1062 wpa_s->network_select);
1066 wpa_msg(wpa_s, MSG_INFO, "Starting OSU provisioning information fetch");
1067 wpa_s->num_osu_scans = 0;
1068 wpa_s->num_prov_found = 0;
1069 hs20_start_osu_scan(wpa_s);
1075 void hs20_start_osu_scan(struct wpa_supplicant *wpa_s)
1077 wpa_s->fetch_osu_waiting_scan = 1;
1078 wpa_s->num_osu_scans++;
1079 wpa_s->scan_req = MANUAL_SCAN_REQ;
1080 wpa_s->scan_res_handler = hs20_osu_scan_res_handler;
1081 wpa_supplicant_req_scan(wpa_s, 0, 0);
1085 void hs20_cancel_fetch_osu(struct wpa_supplicant *wpa_s)
1087 wpa_printf(MSG_DEBUG, "Cancel OSU fetch");
1088 interworking_stop_fetch_anqp(wpa_s);
1089 wpa_s->fetch_osu_waiting_scan = 0;
1090 wpa_s->network_select = 0;
1091 wpa_s->fetch_osu_info = 0;
1092 wpa_s->fetch_osu_icon_in_progress = 0;
1096 void hs20_icon_fetch_failed(struct wpa_supplicant *wpa_s)
1098 hs20_osu_icon_fetch_result(wpa_s, -1);
1099 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1100 eloop_register_timeout(0, 0, hs20_continue_icon_fetch, wpa_s, NULL);
1104 void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
1105 const char *url, u8 osu_method)
1108 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION "%u %s",
1111 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
1115 void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
1116 u16 reauth_delay, const char *url)
1118 if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1119 wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
1123 wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
1124 code, reauth_delay, url);
1126 if (code == HS20_DEAUTH_REASON_CODE_BSS) {
1127 wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to blacklist");
1128 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1129 /* TODO: For now, disable full ESS since some drivers may not
1130 * support disabling per BSS. */
1131 if (wpa_s->current_ssid) {
1132 struct os_reltime now;
1133 os_get_reltime(&now);
1134 if (now.sec + reauth_delay <=
1135 wpa_s->current_ssid->disabled_until.sec)
1137 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds (BSS)",
1139 wpa_s->current_ssid->disabled_until.sec =
1140 now.sec + reauth_delay;
1144 if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
1145 struct os_reltime now;
1146 os_get_reltime(&now);
1147 if (now.sec + reauth_delay <=
1148 wpa_s->current_ssid->disabled_until.sec)
1150 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
1152 wpa_s->current_ssid->disabled_until.sec =
1153 now.sec + reauth_delay;
1158 void hs20_init(struct wpa_supplicant *wpa_s)
1160 dl_list_init(&wpa_s->icon_head);
1164 void hs20_deinit(struct wpa_supplicant *wpa_s)
1166 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1167 hs20_free_osu_prov(wpa_s);
1168 if (wpa_s->icon_head.next)
1169 hs20_del_icon(wpa_s, NULL, NULL);