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 hs20_configure_frame_filters(struct wpa_supplicant *wpa_s)
66 struct wpa_bss *bss = wpa_s->current_bss;
67 u8 *bssid = wpa_s->bssid;
72 if (!bss || !is_hs20_network(wpa_s, wpa_s->current_ssid, bss)) {
74 "Not configuring frame filtering - BSS " MACSTR
75 " is not a Hotspot 2.0 network", MAC2STR(bssid));
79 ie = wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE);
81 /* Check if DGAF disabled bit is zero (5th byte in the IE) */
84 "Not configuring frame filtering - Can't extract DGAF bit");
85 else if (!(ie[6] & HS20_DGAF_DISABLED))
86 filter |= WPA_DATA_FRAME_FILTER_FLAG_GTK;
88 ext_capa = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
89 if (!ext_capa || ext_capa[1] < 2) {
91 "Not configuring frame filtering - Can't extract Proxy ARP bit");
95 /* Check if Proxy ARP is enabled (2nd byte in the IE) */
96 if (ext_capa[3] & BIT(4))
97 filter |= WPA_DATA_FRAME_FILTER_FLAG_ARP |
98 WPA_DATA_FRAME_FILTER_FLAG_NA;
100 wpa_drv_configure_frame_filters(wpa_s, filter);
104 void wpas_hs20_add_indication(struct wpabuf *buf, int pps_mo_id)
108 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
109 wpabuf_put_u8(buf, pps_mo_id >= 0 ? 7 : 5);
110 wpabuf_put_be24(buf, OUI_WFA);
111 wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
114 conf |= HS20_PPS_MO_ID_PRESENT;
115 wpabuf_put_u8(buf, conf);
117 wpabuf_put_le16(buf, pps_mo_id);
121 int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
124 if (!wpa_s->conf->hs20 || !ssid)
127 if (ssid->parent_cred)
130 if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
134 * This may catch some non-Hotspot 2.0 cases, but it is safer to do that
135 * than cause Hotspot 2.0 connections without indication element getting
136 * added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
139 if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
141 if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
143 if (ssid->proto != WPA_PROTO_RSN)
150 int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
152 struct wpa_cred *cred;
157 if (ssid->update_identifier)
158 return ssid->update_identifier;
160 if (ssid->parent_cred == NULL)
163 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
164 if (ssid->parent_cred == cred)
165 return cred->update_identifier;
172 void hs20_put_anqp_req(u32 stypes, const u8 *payload, size_t payload_len,
180 len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
181 wpabuf_put_be24(buf, OUI_WFA);
182 wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
183 if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
184 wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
185 wpabuf_put_u8(buf, 0); /* Reserved */
187 wpabuf_put_data(buf, payload, payload_len);
188 } else if (stypes == BIT(HS20_STYPE_ICON_REQUEST)) {
189 wpabuf_put_u8(buf, HS20_STYPE_ICON_REQUEST);
190 wpabuf_put_u8(buf, 0); /* Reserved */
192 wpabuf_put_data(buf, payload, payload_len);
195 wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
196 wpabuf_put_u8(buf, 0); /* Reserved */
197 for (i = 0; i < 32; i++) {
199 wpabuf_put_u8(buf, i);
202 gas_anqp_set_element_len(buf, len_pos);
204 gas_anqp_set_len(buf);
208 struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
213 buf = gas_anqp_build_initial_req(0, 100 + payload_len);
217 hs20_put_anqp_req(stypes, payload, payload_len, buf);
223 int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
224 const u8 *payload, size_t payload_len, int inmem)
231 struct icon_entry *icon_entry;
233 bss = wpa_bss_get_bssid(wpa_s, dst);
235 wpa_printf(MSG_WARNING,
236 "ANQP: Cannot send query to unknown BSS "
237 MACSTR, MAC2STR(dst));
241 wpa_bss_anqp_unshare_alloc(bss);
244 wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
245 "subtypes 0x%x", MAC2STR(dst), stypes);
247 buf = hs20_build_anqp_req(stypes, payload, payload_len);
251 res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
253 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
257 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
261 icon_entry = os_zalloc(sizeof(struct icon_entry));
264 os_memcpy(icon_entry->bssid, dst, ETH_ALEN);
265 icon_entry->file_name = os_malloc(payload_len + 1);
266 if (!icon_entry->file_name) {
270 os_memcpy(icon_entry->file_name, payload, payload_len);
271 icon_entry->file_name[payload_len] = '\0';
272 icon_entry->dialog_token = res;
274 dl_list_add(&wpa_s->icon_head, &icon_entry->list);
281 static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
283 const char *file_name)
285 struct icon_entry *icon;
287 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
288 if (os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0 &&
289 os_strcmp(icon->file_name, file_name) == 0 && icon->image)
297 int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
298 const char *file_name, size_t offset, size_t size,
299 char *reply, size_t buf_len)
301 struct icon_entry *icon;
307 wpa_printf(MSG_DEBUG, "HS20: Get icon " MACSTR " %s @ %u +%u (%u)",
308 MAC2STR(bssid), file_name, (unsigned int) offset,
309 (unsigned int) size, (unsigned int) buf_len);
311 icon = hs20_find_icon(wpa_s, bssid, file_name);
312 if (!icon || !icon->image || offset >= icon->image_len)
314 if (size > icon->image_len - offset)
315 size = icon->image_len - offset;
316 out_size = buf_len - 3 /* max base64 padding */;
317 if (size * 4 > out_size * 3)
318 size = out_size * 3 / 4;
322 b64 = base64_encode(&icon->image[offset], size, &b64_size);
323 if (buf_len >= b64_size) {
324 os_memcpy(reply, b64, b64_size);
325 reply_size = b64_size;
334 static void hs20_free_icon_entry(struct icon_entry *icon)
336 wpa_printf(MSG_DEBUG, "HS20: Free stored icon from " MACSTR
337 " dialog_token=%u file_name=%s image_len=%u",
338 MAC2STR(icon->bssid), icon->dialog_token,
339 icon->file_name ? icon->file_name : "N/A",
340 (unsigned int) icon->image_len);
341 os_free(icon->file_name);
342 os_free(icon->image);
347 int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
348 const char *file_name)
350 struct icon_entry *icon, *tmp;
354 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons");
356 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons for "
357 MACSTR, MAC2STR(bssid));
359 wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
360 MACSTR " file name %s", MAC2STR(bssid), file_name);
362 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
364 if ((!bssid || os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0) &&
366 os_strcmp(icon->file_name, file_name) == 0)) {
367 dl_list_del(&icon->list);
368 hs20_free_icon_entry(icon);
372 return count == 0 ? -1 : 0;
376 static void hs20_set_osu_access_permission(const char *osu_dir,
381 /* Get OSU directory information */
382 if (stat(osu_dir, &statbuf) < 0) {
383 wpa_printf(MSG_WARNING, "Cannot stat the OSU directory %s",
388 if (chmod(fname, statbuf.st_mode) < 0) {
389 wpa_printf(MSG_WARNING,
390 "Cannot change the permissions for %s", fname);
394 if (chown(fname, statbuf.st_uid, statbuf.st_gid) < 0) {
395 wpa_printf(MSG_WARNING, "Cannot change the ownership for %s",
401 static void hs20_remove_duplicate_icons(struct wpa_supplicant *wpa_s,
402 struct icon_entry *new_icon)
404 struct icon_entry *icon, *tmp;
406 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
408 if (icon == new_icon)
410 if (os_memcmp(icon->bssid, new_icon->bssid, ETH_ALEN) == 0 &&
411 os_strcmp(icon->file_name, new_icon->file_name) == 0) {
412 dl_list_del(&icon->list);
413 hs20_free_icon_entry(icon);
419 static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
420 const u8 *sa, const u8 *pos,
421 size_t slen, u8 dialog_token)
427 struct icon_entry *icon;
429 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
430 if (icon->dialog_token == dialog_token && !icon->image &&
431 os_memcmp(icon->bssid, sa, ETH_ALEN) == 0) {
432 icon->image = os_malloc(slen);
435 os_memcpy(icon->image, pos, slen);
436 icon->image_len = slen;
437 hs20_remove_duplicate_icons(wpa_s, icon);
438 wpa_msg(wpa_s, MSG_INFO,
439 "RX-HS20-ICON " MACSTR " %s %u",
440 MAC2STR(sa), icon->file_name,
441 (unsigned int) icon->image_len);
446 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR " Icon Binary File",
450 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
451 "value from " MACSTR, MAC2STR(sa));
455 wpa_printf(MSG_DEBUG, "HS 2.0: Download Status Code %u", *pos);
461 if ((size_t) 1 + pos[0] > slen) {
462 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
463 "value from " MACSTR, MAC2STR(sa));
466 wpa_hexdump_ascii(MSG_DEBUG, "Icon Type", pos + 1, pos[0]);
467 png = os_strncasecmp((char *) pos + 1, "image/png", 9) == 0;
472 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
473 "value from " MACSTR, MAC2STR(sa));
476 data_len = WPA_GET_LE16(pos);
480 if (data_len > slen) {
481 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
482 "value from " MACSTR, MAC2STR(sa));
486 wpa_printf(MSG_DEBUG, "Icon Binary Data: %u bytes", data_len);
487 if (wpa_s->conf->osu_dir == NULL)
490 wpa_s->osu_icon_id++;
491 if (wpa_s->osu_icon_id == 0)
492 wpa_s->osu_icon_id++;
493 snprintf(fname, sizeof(fname), "%s/osu-icon-%u.%s",
494 wpa_s->conf->osu_dir, wpa_s->osu_icon_id,
495 png ? "png" : "icon");
496 f = fopen(fname, "wb");
500 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
502 if (fwrite(pos, slen, 1, f) != 1) {
509 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP-ICON %s", fname);
514 static void hs20_continue_icon_fetch(void *eloop_ctx, void *sock_ctx)
516 struct wpa_supplicant *wpa_s = eloop_ctx;
517 if (wpa_s->fetch_osu_icon_in_progress)
518 hs20_next_osu_icon(wpa_s);
522 static void hs20_osu_icon_fetch_result(struct wpa_supplicant *wpa_s, int res)
525 struct os_reltime now, tmp;
528 os_get_reltime(&now);
529 os_reltime_sub(&now, &wpa_s->osu_icon_fetch_start, &tmp);
530 dur = tmp.sec * 1000 + tmp.usec / 1000;
531 wpa_printf(MSG_DEBUG, "HS 2.0: Icon fetch dur=%d ms res=%d",
534 for (i = 0; i < wpa_s->osu_prov_count; i++) {
535 struct osu_provider *osu = &wpa_s->osu_prov[i];
536 for (j = 0; j < osu->icon_count; j++) {
537 struct osu_icon *icon = &osu->icon[j];
538 if (icon->id || icon->failed)
543 icon->id = wpa_s->osu_icon_id;
550 void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
551 struct wpa_bss *bss, const u8 *sa,
552 const u8 *data, size_t slen, u8 dialog_token)
554 const u8 *pos = data;
556 struct wpa_bss_anqp *anqp = NULL;
568 pos++; /* Reserved */
572 case HS20_STYPE_CAPABILITY_LIST:
573 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
574 " HS Capability List", MAC2STR(sa));
575 wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
577 wpabuf_free(anqp->hs20_capability_list);
578 anqp->hs20_capability_list =
579 wpabuf_alloc_copy(pos, slen);
582 case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
583 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
584 " Operator Friendly Name", MAC2STR(sa));
585 wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
587 wpabuf_free(anqp->hs20_operator_friendly_name);
588 anqp->hs20_operator_friendly_name =
589 wpabuf_alloc_copy(pos, slen);
592 case HS20_STYPE_WAN_METRICS:
593 wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
595 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
596 "Metrics value from " MACSTR, MAC2STR(sa));
599 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
600 " WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
601 pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
602 pos[9], pos[10], WPA_GET_LE16(pos + 11));
604 wpabuf_free(anqp->hs20_wan_metrics);
605 anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
608 case HS20_STYPE_CONNECTION_CAPABILITY:
609 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
610 " Connection Capability", MAC2STR(sa));
611 wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
613 wpabuf_free(anqp->hs20_connection_capability);
614 anqp->hs20_connection_capability =
615 wpabuf_alloc_copy(pos, slen);
618 case HS20_STYPE_OPERATING_CLASS:
619 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
620 " Operating Class", MAC2STR(sa));
621 wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
623 wpabuf_free(anqp->hs20_operating_class);
624 anqp->hs20_operating_class =
625 wpabuf_alloc_copy(pos, slen);
628 case HS20_STYPE_OSU_PROVIDERS_LIST:
629 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
630 " OSU Providers list", MAC2STR(sa));
631 wpa_s->num_prov_found++;
633 wpabuf_free(anqp->hs20_osu_providers_list);
634 anqp->hs20_osu_providers_list =
635 wpabuf_alloc_copy(pos, slen);
638 case HS20_STYPE_ICON_BINARY_FILE:
639 ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen,
641 if (wpa_s->fetch_osu_icon_in_progress) {
642 hs20_osu_icon_fetch_result(wpa_s, ret);
643 eloop_cancel_timeout(hs20_continue_icon_fetch,
645 eloop_register_timeout(0, 0, hs20_continue_icon_fetch,
650 wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);
656 void hs20_notify_parse_done(struct wpa_supplicant *wpa_s)
658 if (!wpa_s->fetch_osu_icon_in_progress)
660 if (eloop_is_timeout_registered(hs20_continue_icon_fetch, wpa_s, NULL))
663 * We are going through icon fetch, but no icon response was received.
664 * Assume this means the current AP could not provide an answer to avoid
665 * getting stuck in fetch iteration.
667 hs20_icon_fetch_failed(wpa_s);
671 static void hs20_free_osu_prov_entry(struct osu_provider *prov)
676 void hs20_free_osu_prov(struct wpa_supplicant *wpa_s)
679 for (i = 0; i < wpa_s->osu_prov_count; i++)
680 hs20_free_osu_prov_entry(&wpa_s->osu_prov[i]);
681 os_free(wpa_s->osu_prov);
682 wpa_s->osu_prov = NULL;
683 wpa_s->osu_prov_count = 0;
687 static void hs20_osu_fetch_done(struct wpa_supplicant *wpa_s)
693 wpa_s->fetch_osu_info = 0;
694 wpa_s->fetch_osu_icon_in_progress = 0;
696 if (wpa_s->conf->osu_dir == NULL) {
697 hs20_free_osu_prov(wpa_s);
698 wpa_s->fetch_anqp_in_progress = 0;
702 snprintf(fname, sizeof(fname), "%s/osu-providers.txt",
703 wpa_s->conf->osu_dir);
704 f = fopen(fname, "w");
706 hs20_free_osu_prov(wpa_s);
707 wpa_s->fetch_anqp_in_progress = 0;
711 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
713 for (i = 0; i < wpa_s->osu_prov_count; i++) {
714 struct osu_provider *osu = &wpa_s->osu_prov[i];
717 fprintf(f, "OSU-PROVIDER " MACSTR "\n"
720 MAC2STR(osu->bssid), osu->server_uri, osu->osu_methods);
721 if (osu->osu_ssid_len) {
722 fprintf(f, "osu_ssid=%s\n",
723 wpa_ssid_txt(osu->osu_ssid,
727 fprintf(f, "osu_nai=%s\n", osu->osu_nai);
728 for (j = 0; j < osu->friendly_name_count; j++) {
729 fprintf(f, "friendly_name=%s:%s\n",
730 osu->friendly_name[j].lang,
731 osu->friendly_name[j].text);
733 for (j = 0; j < osu->serv_desc_count; j++) {
734 fprintf(f, "desc=%s:%s\n",
735 osu->serv_desc[j].lang,
736 osu->serv_desc[j].text);
738 for (j = 0; j < osu->icon_count; j++) {
739 struct osu_icon *icon = &osu->icon[j];
741 continue; /* could not fetch icon */
742 fprintf(f, "icon=%u:%u:%u:%s:%s:%s\n",
743 icon->id, icon->width, icon->height, icon->lang,
744 icon->icon_type, icon->filename);
748 hs20_free_osu_prov(wpa_s);
750 wpa_msg(wpa_s, MSG_INFO, "OSU provider fetch completed");
751 wpa_s->fetch_anqp_in_progress = 0;
755 void hs20_next_osu_icon(struct wpa_supplicant *wpa_s)
759 wpa_printf(MSG_DEBUG, "HS 2.0: Ready to fetch next icon");
761 for (i = 0; i < wpa_s->osu_prov_count; i++) {
762 struct osu_provider *osu = &wpa_s->osu_prov[i];
763 for (j = 0; j < osu->icon_count; j++) {
764 struct osu_icon *icon = &osu->icon[j];
765 if (icon->id || icon->failed)
768 wpa_printf(MSG_DEBUG, "HS 2.0: Try to fetch icon '%s' "
769 "from " MACSTR, icon->filename,
770 MAC2STR(osu->bssid));
771 os_get_reltime(&wpa_s->osu_icon_fetch_start);
772 if (hs20_anqp_send_req(wpa_s, osu->bssid,
773 BIT(HS20_STYPE_ICON_REQUEST),
774 (u8 *) icon->filename,
775 os_strlen(icon->filename),
784 wpa_printf(MSG_DEBUG, "HS 2.0: No more icons to fetch");
785 hs20_osu_fetch_done(wpa_s);
789 static void hs20_osu_add_prov(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
790 const u8 *osu_ssid, u8 osu_ssid_len,
791 const u8 *pos, size_t len)
793 struct osu_provider *prov;
794 const u8 *end = pos + len;
797 u8 uri_len, osu_method_len, osu_nai_len;
799 wpa_hexdump(MSG_DEBUG, "HS 2.0: Parsing OSU Provider", pos, len);
800 prov = os_realloc_array(wpa_s->osu_prov,
801 wpa_s->osu_prov_count + 1,
805 wpa_s->osu_prov = prov;
806 prov = &prov[wpa_s->osu_prov_count];
807 os_memset(prov, 0, sizeof(*prov));
809 os_memcpy(prov->bssid, bss->bssid, ETH_ALEN);
810 os_memcpy(prov->osu_ssid, osu_ssid, osu_ssid_len);
811 prov->osu_ssid_len = osu_ssid_len;
813 /* OSU Friendly Name Length */
815 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
816 "Friendly Name Length");
819 len2 = WPA_GET_LE16(pos);
821 if (len2 > end - pos) {
822 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
823 "Friendly Name Duples");
829 /* OSU Friendly Name Duples */
830 while (pos - pos2 >= 4 && prov->friendly_name_count < OSU_MAX_ITEMS) {
831 struct osu_lang_string *f;
832 if (1 + pos2[0] > pos - pos2 || pos2[0] < 3) {
833 wpa_printf(MSG_DEBUG, "Invalid OSU Friendly Name");
836 f = &prov->friendly_name[prov->friendly_name_count++];
837 os_memcpy(f->lang, pos2 + 1, 3);
838 os_memcpy(f->text, pos2 + 1 + 3, pos2[0] - 3);
844 wpa_printf(MSG_DEBUG,
845 "HS 2.0: Not enough room for OSU Server URI length");
849 if (uri_len > end - pos) {
850 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Server "
854 os_memcpy(prov->server_uri, pos, uri_len);
857 /* OSU Method list */
859 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
863 osu_method_len = pos[0];
864 if (osu_method_len > end - pos - 1) {
865 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
870 pos += 1 + osu_method_len;
873 prov->osu_methods |= BIT(*pos2);
877 /* Icons Available Length */
879 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
883 len2 = WPA_GET_LE16(pos);
885 if (len2 > end - pos) {
886 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
893 /* Icons Available */
895 struct osu_icon *icon = &prov->icon[prov->icon_count];
898 if (2 + 2 + 3 + 1 + 1 > pos - pos2) {
899 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid Icon Metadata");
903 icon->width = WPA_GET_LE16(pos2);
905 icon->height = WPA_GET_LE16(pos2);
907 os_memcpy(icon->lang, pos2, 3);
911 if (flen > pos - pos2) {
912 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon Type");
915 os_memcpy(icon->icon_type, pos2, flen);
918 if (pos - pos2 < 1) {
919 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
924 if (flen > pos - pos2) {
925 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
929 os_memcpy(icon->filename, pos2, flen);
937 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
940 osu_nai_len = *pos++;
941 if (osu_nai_len > end - pos) {
942 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
945 os_memcpy(prov->osu_nai, pos, osu_nai_len);
948 /* OSU Service Description Length */
950 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
951 "Service Description Length");
954 len2 = WPA_GET_LE16(pos);
956 if (len2 > end - pos) {
957 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
958 "Service Description Duples");
964 /* OSU Service Description Duples */
965 while (pos - pos2 >= 4 && prov->serv_desc_count < OSU_MAX_ITEMS) {
966 struct osu_lang_string *f;
970 if (descr_len > pos - pos2 || descr_len < 3) {
971 wpa_printf(MSG_DEBUG, "Invalid OSU Service "
975 f = &prov->serv_desc[prov->serv_desc_count++];
976 os_memcpy(f->lang, pos2, 3);
977 os_memcpy(f->text, pos2 + 3, descr_len - 3);
981 wpa_printf(MSG_DEBUG, "HS 2.0: Added OSU Provider through " MACSTR,
982 MAC2STR(bss->bssid));
983 wpa_s->osu_prov_count++;
987 void hs20_osu_icon_fetch(struct wpa_supplicant *wpa_s)
990 struct wpabuf *prov_anqp;
997 hs20_free_osu_prov(wpa_s);
999 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1000 if (bss->anqp == NULL)
1002 prov_anqp = bss->anqp->hs20_osu_providers_list;
1003 if (prov_anqp == NULL)
1005 wpa_printf(MSG_DEBUG, "HS 2.0: Parsing OSU Providers list from "
1006 MACSTR, MAC2STR(bss->bssid));
1007 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers list",
1009 pos = wpabuf_head(prov_anqp);
1010 end = pos + wpabuf_len(prov_anqp);
1015 if (1 + pos[0] > end - pos) {
1016 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1020 osu_ssid_len = *pos++;
1021 if (osu_ssid_len > SSID_MAX_LEN) {
1022 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid OSU SSID "
1023 "Length %u", osu_ssid_len);
1027 pos += osu_ssid_len;
1029 if (end - pos < 1) {
1030 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1031 "Number of OSU Providers");
1034 num_providers = *pos++;
1035 wpa_printf(MSG_DEBUG, "HS 2.0: Number of OSU Providers: %u",
1039 while (end - pos > 2 && num_providers > 0) {
1041 len = WPA_GET_LE16(pos);
1043 if (len > (unsigned int) (end - pos))
1045 hs20_osu_add_prov(wpa_s, bss, osu_ssid,
1046 osu_ssid_len, pos, len);
1051 wpa_printf(MSG_DEBUG, "HS 2.0: Ignored %d bytes of "
1052 "extra data after OSU Providers",
1057 wpa_s->fetch_osu_icon_in_progress = 1;
1058 hs20_next_osu_icon(wpa_s);
1062 static void hs20_osu_scan_res_handler(struct wpa_supplicant *wpa_s,
1063 struct wpa_scan_results *scan_res)
1065 wpa_printf(MSG_DEBUG, "OSU provisioning fetch scan completed");
1066 if (!wpa_s->fetch_osu_waiting_scan) {
1067 wpa_printf(MSG_DEBUG, "OSU fetch have been canceled");
1070 wpa_s->network_select = 0;
1071 wpa_s->fetch_all_anqp = 1;
1072 wpa_s->fetch_osu_info = 1;
1073 wpa_s->fetch_osu_icon_in_progress = 0;
1075 interworking_start_fetch_anqp(wpa_s);
1079 int hs20_fetch_osu(struct wpa_supplicant *wpa_s)
1081 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1082 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1083 "interface disabled");
1087 if (wpa_s->scanning) {
1088 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1093 if (wpa_s->conf->osu_dir == NULL) {
1094 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1095 "osu_dir not configured");
1099 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) {
1100 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1101 "fetch in progress (%d, %d)",
1102 wpa_s->fetch_anqp_in_progress,
1103 wpa_s->network_select);
1107 wpa_msg(wpa_s, MSG_INFO, "Starting OSU provisioning information fetch");
1108 wpa_s->num_osu_scans = 0;
1109 wpa_s->num_prov_found = 0;
1110 hs20_start_osu_scan(wpa_s);
1116 void hs20_start_osu_scan(struct wpa_supplicant *wpa_s)
1118 wpa_s->fetch_osu_waiting_scan = 1;
1119 wpa_s->num_osu_scans++;
1120 wpa_s->scan_req = MANUAL_SCAN_REQ;
1121 wpa_s->scan_res_handler = hs20_osu_scan_res_handler;
1122 wpa_supplicant_req_scan(wpa_s, 0, 0);
1126 void hs20_cancel_fetch_osu(struct wpa_supplicant *wpa_s)
1128 wpa_printf(MSG_DEBUG, "Cancel OSU fetch");
1129 interworking_stop_fetch_anqp(wpa_s);
1130 wpa_s->fetch_osu_waiting_scan = 0;
1131 wpa_s->network_select = 0;
1132 wpa_s->fetch_osu_info = 0;
1133 wpa_s->fetch_osu_icon_in_progress = 0;
1137 void hs20_icon_fetch_failed(struct wpa_supplicant *wpa_s)
1139 hs20_osu_icon_fetch_result(wpa_s, -1);
1140 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1141 eloop_register_timeout(0, 0, hs20_continue_icon_fetch, wpa_s, NULL);
1145 void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
1146 const char *url, u8 osu_method)
1149 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION "%u %s",
1152 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
1156 void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
1157 u16 reauth_delay, const char *url)
1159 if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1160 wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
1164 wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
1165 code, reauth_delay, url);
1167 if (code == HS20_DEAUTH_REASON_CODE_BSS) {
1168 wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to blacklist");
1169 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1170 /* TODO: For now, disable full ESS since some drivers may not
1171 * support disabling per BSS. */
1172 if (wpa_s->current_ssid) {
1173 struct os_reltime now;
1174 os_get_reltime(&now);
1175 if (now.sec + reauth_delay <=
1176 wpa_s->current_ssid->disabled_until.sec)
1178 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds (BSS)",
1180 wpa_s->current_ssid->disabled_until.sec =
1181 now.sec + reauth_delay;
1185 if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
1186 struct os_reltime now;
1187 os_get_reltime(&now);
1188 if (now.sec + reauth_delay <=
1189 wpa_s->current_ssid->disabled_until.sec)
1191 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
1193 wpa_s->current_ssid->disabled_until.sec =
1194 now.sec + reauth_delay;
1199 void hs20_init(struct wpa_supplicant *wpa_s)
1201 dl_list_init(&wpa_s->icon_head);
1205 void hs20_deinit(struct wpa_supplicant *wpa_s)
1207 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1208 hs20_free_osu_prov(wpa_s);
1209 if (wpa_s->icon_head.next)
1210 hs20_del_icon(wpa_s, NULL, NULL);