blob: af28e885224ec82d9b5dab9d7a52b606052d6cb6 [file] [log] [blame]
Dmitry Shmidt04949592012-07-19 12:16:46 -07001/*
2 * Copyright (c) 2009, Atheros Communications, Inc.
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08003 * Copyright (c) 2011-2013, Qualcomm Atheros, Inc.
Dmitry Shmidt04949592012-07-19 12:16:46 -07004 *
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"
Dmitry Shmidt2f74e362015-01-21 13:19:05 -080010#include <sys/stat.h>
Dmitry Shmidt04949592012-07-19 12:16:46 -070011
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"
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080018#include "rsn_supp/wpa.h"
Dmitry Shmidt04949592012-07-19 12:16:46 -070019#include "wpa_supplicant_i.h"
20#include "driver_i.h"
21#include "config.h"
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080022#include "scan.h"
Roshan Pius04a9d742016-12-12 12:40:46 -080023#include "notify.h"
Dmitry Shmidt04949592012-07-19 12:16:46 -070024#include "bss.h"
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080025#include "blacklist.h"
Dmitry Shmidt04949592012-07-19 12:16:46 -070026#include "gas_query.h"
27#include "interworking.h"
28#include "hs20_supplicant.h"
Dmitry Shmidt7d56b752015-12-22 10:59:44 -080029#include "base64.h"
Dmitry Shmidt04949592012-07-19 12:16:46 -070030
31
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080032#define OSU_MAX_ITEMS 10
33
34struct osu_lang_string {
35 char lang[4];
36 char text[253];
37};
38
39struct osu_icon {
40 u16 width;
41 u16 height;
42 char lang[4];
43 char icon_type[256];
44 char filename[256];
45 unsigned int id;
46 unsigned int failed:1;
47};
48
49struct osu_provider {
50 u8 bssid[ETH_ALEN];
Dmitry Shmidt9d9e6022015-04-23 10:34:55 -070051 u8 osu_ssid[SSID_MAX_LEN];
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080052 u8 osu_ssid_len;
53 char server_uri[256];
54 u32 osu_methods; /* bit 0 = OMA-DM, bit 1 = SOAP-XML SPP */
55 char osu_nai[256];
56 struct osu_lang_string friendly_name[OSU_MAX_ITEMS];
57 size_t friendly_name_count;
58 struct osu_lang_string serv_desc[OSU_MAX_ITEMS];
59 size_t serv_desc_count;
60 struct osu_icon icon[OSU_MAX_ITEMS];
61 size_t icon_count;
62};
63
64
Dmitry Shmidt849734c2016-05-27 09:59:01 -070065void hs20_configure_frame_filters(struct wpa_supplicant *wpa_s)
66{
67 struct wpa_bss *bss = wpa_s->current_bss;
68 u8 *bssid = wpa_s->bssid;
69 const u8 *ie;
70 const u8 *ext_capa;
71 u32 filter = 0;
72
73 if (!bss || !is_hs20_network(wpa_s, wpa_s->current_ssid, bss)) {
74 wpa_printf(MSG_DEBUG,
75 "Not configuring frame filtering - BSS " MACSTR
76 " is not a Hotspot 2.0 network", MAC2STR(bssid));
77 return;
78 }
79
80 ie = wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE);
81
82 /* Check if DGAF disabled bit is zero (5th byte in the IE) */
83 if (!ie || ie[1] < 5)
84 wpa_printf(MSG_DEBUG,
85 "Not configuring frame filtering - Can't extract DGAF bit");
86 else if (!(ie[6] & HS20_DGAF_DISABLED))
87 filter |= WPA_DATA_FRAME_FILTER_FLAG_GTK;
88
89 ext_capa = wpa_bss_get_ie(bss, WLAN_EID_EXT_CAPAB);
90 if (!ext_capa || ext_capa[1] < 2) {
91 wpa_printf(MSG_DEBUG,
92 "Not configuring frame filtering - Can't extract Proxy ARP bit");
93 return;
94 }
95
96 /* Check if Proxy ARP is enabled (2nd byte in the IE) */
97 if (ext_capa[3] & BIT(4))
98 filter |= WPA_DATA_FRAME_FILTER_FLAG_ARP |
99 WPA_DATA_FRAME_FILTER_FLAG_NA;
100
101 wpa_drv_configure_frame_filters(wpa_s, filter);
102}
103
104
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800105void wpas_hs20_add_indication(struct wpabuf *buf, int pps_mo_id)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700106{
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800107 u8 conf;
108
Dmitry Shmidt04949592012-07-19 12:16:46 -0700109 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800110 wpabuf_put_u8(buf, pps_mo_id >= 0 ? 7 : 5);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700111 wpabuf_put_be24(buf, OUI_WFA);
112 wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800113 conf = HS20_VERSION;
114 if (pps_mo_id >= 0)
115 conf |= HS20_PPS_MO_ID_PRESENT;
116 wpabuf_put_u8(buf, conf);
117 if (pps_mo_id >= 0)
118 wpabuf_put_le16(buf, pps_mo_id);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700119}
120
121
Roshan Pius3a1667e2018-07-03 15:17:14 -0700122void wpas_hs20_add_roam_cons_sel(struct wpabuf *buf,
123 const struct wpa_ssid *ssid)
124{
125 if (!ssid->roaming_consortium_selection ||
126 !ssid->roaming_consortium_selection_len)
127 return;
128
129 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
130 wpabuf_put_u8(buf, 4 + ssid->roaming_consortium_selection_len);
131 wpabuf_put_be24(buf, OUI_WFA);
132 wpabuf_put_u8(buf, HS20_ROAMING_CONS_SEL_OUI_TYPE);
133 wpabuf_put_data(buf, ssid->roaming_consortium_selection,
134 ssid->roaming_consortium_selection_len);
135}
136
137
Dmitry Shmidt51b6ea82013-05-08 10:42:09 -0700138int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
139 struct wpa_bss *bss)
140{
141 if (!wpa_s->conf->hs20 || !ssid)
142 return 0;
143
144 if (ssid->parent_cred)
145 return 1;
146
147 if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
148 return 0;
149
150 /*
151 * This may catch some non-Hotspot 2.0 cases, but it is safer to do that
152 * than cause Hotspot 2.0 connections without indication element getting
153 * added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
154 */
155
156 if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
157 return 0;
158 if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
159 return 0;
160 if (ssid->proto != WPA_PROTO_RSN)
161 return 0;
162
163 return 1;
164}
165
166
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800167int hs20_get_pps_mo_id(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
168{
169 struct wpa_cred *cred;
170
Dmitry Shmidtc2817022014-07-02 10:32:10 -0700171 if (ssid == NULL)
172 return 0;
173
174 if (ssid->update_identifier)
175 return ssid->update_identifier;
176
177 if (ssid->parent_cred == NULL)
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800178 return 0;
179
180 for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
181 if (ssid->parent_cred == cred)
182 return cred->update_identifier;
183 }
184
185 return 0;
186}
187
188
Dmitry Shmidt15907092014-03-25 10:42:57 -0700189void hs20_put_anqp_req(u32 stypes, const u8 *payload, size_t payload_len,
190 struct wpabuf *buf)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700191{
Dmitry Shmidt04949592012-07-19 12:16:46 -0700192 u8 *len_pos;
193
Dmitry Shmidt04949592012-07-19 12:16:46 -0700194 if (buf == NULL)
Dmitry Shmidt15907092014-03-25 10:42:57 -0700195 return;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700196
197 len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
198 wpabuf_put_be24(buf, OUI_WFA);
199 wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
200 if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
201 wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
202 wpabuf_put_u8(buf, 0); /* Reserved */
203 if (payload)
204 wpabuf_put_data(buf, payload, payload_len);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800205 } else if (stypes == BIT(HS20_STYPE_ICON_REQUEST)) {
206 wpabuf_put_u8(buf, HS20_STYPE_ICON_REQUEST);
207 wpabuf_put_u8(buf, 0); /* Reserved */
208 if (payload)
209 wpabuf_put_data(buf, payload, payload_len);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700210 } else {
211 u8 i;
212 wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
213 wpabuf_put_u8(buf, 0); /* Reserved */
214 for (i = 0; i < 32; i++) {
215 if (stypes & BIT(i))
216 wpabuf_put_u8(buf, i);
217 }
218 }
219 gas_anqp_set_element_len(buf, len_pos);
220
221 gas_anqp_set_len(buf);
Dmitry Shmidt15907092014-03-25 10:42:57 -0700222}
223
224
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700225static struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
226 size_t payload_len)
Dmitry Shmidt15907092014-03-25 10:42:57 -0700227{
228 struct wpabuf *buf;
229
230 buf = gas_anqp_build_initial_req(0, 100 + payload_len);
231 if (buf == NULL)
232 return NULL;
233
234 hs20_put_anqp_req(stypes, payload, payload_len, buf);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700235
236 return buf;
237}
238
239
240int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800241 const u8 *payload, size_t payload_len, int inmem)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700242{
243 struct wpabuf *buf;
244 int ret = 0;
245 int freq;
246 struct wpa_bss *bss;
247 int res;
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800248 struct icon_entry *icon_entry;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700249
Dmitry Shmidt04949592012-07-19 12:16:46 -0700250 bss = wpa_bss_get_bssid(wpa_s, dst);
Dmitry Shmidtcc00d5d2015-05-04 10:34:12 -0700251 if (!bss) {
252 wpa_printf(MSG_WARNING,
253 "ANQP: Cannot send query to unknown BSS "
254 MACSTR, MAC2STR(dst));
Dmitry Shmidt04949592012-07-19 12:16:46 -0700255 return -1;
Dmitry Shmidtcc00d5d2015-05-04 10:34:12 -0700256 }
257
258 wpa_bss_anqp_unshare_alloc(bss);
259 freq = bss->freq;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700260
261 wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
262 "subtypes 0x%x", MAC2STR(dst), stypes);
263
264 buf = hs20_build_anqp_req(stypes, payload, payload_len);
265 if (buf == NULL)
266 return -1;
267
Roshan Pius3a1667e2018-07-03 15:17:14 -0700268 res = gas_query_req(wpa_s->gas, dst, freq, 0, buf, anqp_resp_cb, wpa_s);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700269 if (res < 0) {
270 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
Dmitry Shmidt051af732013-10-22 13:52:46 -0700271 wpabuf_free(buf);
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800272 return -1;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700273 } else
274 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
275 "%u", res);
276
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800277 if (inmem) {
278 icon_entry = os_zalloc(sizeof(struct icon_entry));
279 if (!icon_entry)
280 return -1;
281 os_memcpy(icon_entry->bssid, dst, ETH_ALEN);
282 icon_entry->file_name = os_malloc(payload_len + 1);
283 if (!icon_entry->file_name) {
284 os_free(icon_entry);
285 return -1;
286 }
287 os_memcpy(icon_entry->file_name, payload, payload_len);
288 icon_entry->file_name[payload_len] = '\0';
289 icon_entry->dialog_token = res;
290
291 dl_list_add(&wpa_s->icon_head, &icon_entry->list);
292 }
293
Dmitry Shmidt04949592012-07-19 12:16:46 -0700294 return ret;
295}
296
297
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800298static struct icon_entry * hs20_find_icon(struct wpa_supplicant *wpa_s,
299 const u8 *bssid,
300 const char *file_name)
301{
302 struct icon_entry *icon;
303
304 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
305 if (os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0 &&
306 os_strcmp(icon->file_name, file_name) == 0 && icon->image)
307 return icon;
308 }
309
310 return NULL;
311}
312
313
314int hs20_get_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
315 const char *file_name, size_t offset, size_t size,
316 char *reply, size_t buf_len)
317{
318 struct icon_entry *icon;
319 size_t out_size;
320 unsigned char *b64;
321 size_t b64_size;
322 int reply_size;
323
324 wpa_printf(MSG_DEBUG, "HS20: Get icon " MACSTR " %s @ %u +%u (%u)",
325 MAC2STR(bssid), file_name, (unsigned int) offset,
326 (unsigned int) size, (unsigned int) buf_len);
327
328 icon = hs20_find_icon(wpa_s, bssid, file_name);
329 if (!icon || !icon->image || offset >= icon->image_len)
330 return -1;
331 if (size > icon->image_len - offset)
332 size = icon->image_len - offset;
333 out_size = buf_len - 3 /* max base64 padding */;
334 if (size * 4 > out_size * 3)
335 size = out_size * 3 / 4;
336 if (size == 0)
337 return -1;
338
339 b64 = base64_encode(&icon->image[offset], size, &b64_size);
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700340 if (b64 && buf_len >= b64_size) {
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800341 os_memcpy(reply, b64, b64_size);
342 reply_size = b64_size;
343 } else {
344 reply_size = -1;
345 }
346 os_free(b64);
347 return reply_size;
348}
349
350
351static void hs20_free_icon_entry(struct icon_entry *icon)
352{
353 wpa_printf(MSG_DEBUG, "HS20: Free stored icon from " MACSTR
354 " dialog_token=%u file_name=%s image_len=%u",
355 MAC2STR(icon->bssid), icon->dialog_token,
356 icon->file_name ? icon->file_name : "N/A",
357 (unsigned int) icon->image_len);
358 os_free(icon->file_name);
359 os_free(icon->image);
360 os_free(icon);
361}
362
363
364int hs20_del_icon(struct wpa_supplicant *wpa_s, const u8 *bssid,
365 const char *file_name)
366{
367 struct icon_entry *icon, *tmp;
368 int count = 0;
369
370 if (!bssid)
371 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons");
372 else if (!file_name)
373 wpa_printf(MSG_DEBUG, "HS20: Delete all stored icons for "
374 MACSTR, MAC2STR(bssid));
375 else
376 wpa_printf(MSG_DEBUG, "HS20: Delete stored icons for "
377 MACSTR " file name %s", MAC2STR(bssid), file_name);
378
379 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
380 list) {
381 if ((!bssid || os_memcmp(icon->bssid, bssid, ETH_ALEN) == 0) &&
382 (!file_name ||
383 os_strcmp(icon->file_name, file_name) == 0)) {
384 dl_list_del(&icon->list);
385 hs20_free_icon_entry(icon);
386 count++;
387 }
388 }
389 return count == 0 ? -1 : 0;
390}
391
392
Dmitry Shmidt2f74e362015-01-21 13:19:05 -0800393static void hs20_set_osu_access_permission(const char *osu_dir,
394 const char *fname)
395{
396 struct stat statbuf;
397
398 /* Get OSU directory information */
399 if (stat(osu_dir, &statbuf) < 0) {
400 wpa_printf(MSG_WARNING, "Cannot stat the OSU directory %s",
401 osu_dir);
402 return;
403 }
404
405 if (chmod(fname, statbuf.st_mode) < 0) {
406 wpa_printf(MSG_WARNING,
407 "Cannot change the permissions for %s", fname);
408 return;
409 }
410
411 if (chown(fname, statbuf.st_uid, statbuf.st_gid) < 0) {
412 wpa_printf(MSG_WARNING, "Cannot change the ownership for %s",
413 fname);
414 }
415}
416
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800417
418static void hs20_remove_duplicate_icons(struct wpa_supplicant *wpa_s,
419 struct icon_entry *new_icon)
420{
421 struct icon_entry *icon, *tmp;
422
423 dl_list_for_each_safe(icon, tmp, &wpa_s->icon_head, struct icon_entry,
424 list) {
425 if (icon == new_icon)
426 continue;
427 if (os_memcmp(icon->bssid, new_icon->bssid, ETH_ALEN) == 0 &&
428 os_strcmp(icon->file_name, new_icon->file_name) == 0) {
429 dl_list_del(&icon->list);
430 hs20_free_icon_entry(icon);
431 }
432 }
433}
434
435
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800436static int hs20_process_icon_binary_file(struct wpa_supplicant *wpa_s,
437 const u8 *sa, const u8 *pos,
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800438 size_t slen, u8 dialog_token)
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800439{
440 char fname[256];
441 int png;
442 FILE *f;
443 u16 data_len;
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800444 struct icon_entry *icon;
445
446 dl_list_for_each(icon, &wpa_s->icon_head, struct icon_entry, list) {
447 if (icon->dialog_token == dialog_token && !icon->image &&
448 os_memcmp(icon->bssid, sa, ETH_ALEN) == 0) {
Dmitry Shmidtd2986c22017-10-23 14:22:09 -0700449 icon->image = os_memdup(pos, slen);
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800450 if (!icon->image)
451 return -1;
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800452 icon->image_len = slen;
453 hs20_remove_duplicate_icons(wpa_s, icon);
454 wpa_msg(wpa_s, MSG_INFO,
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700455 RX_HS20_ICON MACSTR " %s %u",
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800456 MAC2STR(sa), icon->file_name,
457 (unsigned int) icon->image_len);
Roshan Pius04a9d742016-12-12 12:40:46 -0800458 wpas_notify_hs20_icon_query_done(wpa_s, sa,
459 icon->file_name,
460 icon->image,
461 icon->image_len);
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800462 return 0;
463 }
464 }
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800465
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700466 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR " Icon Binary File",
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800467 MAC2STR(sa));
468
469 if (slen < 4) {
470 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
471 "value from " MACSTR, MAC2STR(sa));
472 return -1;
473 }
474
475 wpa_printf(MSG_DEBUG, "HS 2.0: Download Status Code %u", *pos);
476 if (*pos != 0)
477 return -1;
478 pos++;
479 slen--;
480
481 if ((size_t) 1 + pos[0] > slen) {
482 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
483 "value from " MACSTR, MAC2STR(sa));
484 return -1;
485 }
486 wpa_hexdump_ascii(MSG_DEBUG, "Icon Type", pos + 1, pos[0]);
487 png = os_strncasecmp((char *) pos + 1, "image/png", 9) == 0;
488 slen -= 1 + pos[0];
489 pos += 1 + pos[0];
490
491 if (slen < 2) {
492 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
493 "value from " MACSTR, MAC2STR(sa));
494 return -1;
495 }
496 data_len = WPA_GET_LE16(pos);
497 pos += 2;
498 slen -= 2;
499
500 if (data_len > slen) {
501 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short Icon Binary File "
502 "value from " MACSTR, MAC2STR(sa));
503 return -1;
504 }
505
506 wpa_printf(MSG_DEBUG, "Icon Binary Data: %u bytes", data_len);
507 if (wpa_s->conf->osu_dir == NULL)
508 return -1;
509
510 wpa_s->osu_icon_id++;
511 if (wpa_s->osu_icon_id == 0)
512 wpa_s->osu_icon_id++;
513 snprintf(fname, sizeof(fname), "%s/osu-icon-%u.%s",
514 wpa_s->conf->osu_dir, wpa_s->osu_icon_id,
515 png ? "png" : "icon");
516 f = fopen(fname, "wb");
517 if (f == NULL)
518 return -1;
Dmitry Shmidt2f74e362015-01-21 13:19:05 -0800519
520 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
521
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800522 if (fwrite(pos, slen, 1, f) != 1) {
523 fclose(f);
524 unlink(fname);
525 return -1;
526 }
527 fclose(f);
528
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700529 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP_ICON "%s", fname);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800530 return 0;
531}
532
533
534static void hs20_continue_icon_fetch(void *eloop_ctx, void *sock_ctx)
535{
536 struct wpa_supplicant *wpa_s = eloop_ctx;
537 if (wpa_s->fetch_osu_icon_in_progress)
538 hs20_next_osu_icon(wpa_s);
539}
540
541
542static void hs20_osu_icon_fetch_result(struct wpa_supplicant *wpa_s, int res)
543{
544 size_t i, j;
545 struct os_reltime now, tmp;
546 int dur;
547
548 os_get_reltime(&now);
549 os_reltime_sub(&now, &wpa_s->osu_icon_fetch_start, &tmp);
550 dur = tmp.sec * 1000 + tmp.usec / 1000;
551 wpa_printf(MSG_DEBUG, "HS 2.0: Icon fetch dur=%d ms res=%d",
552 dur, res);
553
554 for (i = 0; i < wpa_s->osu_prov_count; i++) {
555 struct osu_provider *osu = &wpa_s->osu_prov[i];
556 for (j = 0; j < osu->icon_count; j++) {
557 struct osu_icon *icon = &osu->icon[j];
558 if (icon->id || icon->failed)
559 continue;
560 if (res < 0)
561 icon->failed = 1;
562 else
563 icon->id = wpa_s->osu_icon_id;
564 return;
565 }
566 }
567}
568
569
Dmitry Shmidt04949592012-07-19 12:16:46 -0700570void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
Dmitry Shmidt2f74e362015-01-21 13:19:05 -0800571 struct wpa_bss *bss, const u8 *sa,
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800572 const u8 *data, size_t slen, u8 dialog_token)
Dmitry Shmidt04949592012-07-19 12:16:46 -0700573{
574 const u8 *pos = data;
575 u8 subtype;
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -0700576 struct wpa_bss_anqp *anqp = NULL;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800577 int ret;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700578
579 if (slen < 2)
580 return;
581
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -0700582 if (bss)
583 anqp = bss->anqp;
584
Dmitry Shmidt04949592012-07-19 12:16:46 -0700585 subtype = *pos++;
586 slen--;
587
588 pos++; /* Reserved */
589 slen--;
590
591 switch (subtype) {
592 case HS20_STYPE_CAPABILITY_LIST:
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700593 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
Dmitry Shmidt04949592012-07-19 12:16:46 -0700594 " HS Capability List", MAC2STR(sa));
595 wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
Dmitry Shmidt7f656022015-02-25 14:36:37 -0800596 if (anqp) {
597 wpabuf_free(anqp->hs20_capability_list);
598 anqp->hs20_capability_list =
599 wpabuf_alloc_copy(pos, slen);
600 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700601 break;
602 case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700603 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
Dmitry Shmidt04949592012-07-19 12:16:46 -0700604 " Operator Friendly Name", MAC2STR(sa));
605 wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -0700606 if (anqp) {
607 wpabuf_free(anqp->hs20_operator_friendly_name);
608 anqp->hs20_operator_friendly_name =
Dmitry Shmidt04949592012-07-19 12:16:46 -0700609 wpabuf_alloc_copy(pos, slen);
610 }
611 break;
612 case HS20_STYPE_WAN_METRICS:
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800613 wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
614 if (slen < 13) {
615 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
616 "Metrics value from " MACSTR, MAC2STR(sa));
617 break;
618 }
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700619 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800620 " WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
621 pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
622 pos[9], pos[10], WPA_GET_LE16(pos + 11));
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -0700623 if (anqp) {
624 wpabuf_free(anqp->hs20_wan_metrics);
625 anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700626 }
627 break;
628 case HS20_STYPE_CONNECTION_CAPABILITY:
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700629 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
Dmitry Shmidt04949592012-07-19 12:16:46 -0700630 " Connection Capability", MAC2STR(sa));
631 wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -0700632 if (anqp) {
633 wpabuf_free(anqp->hs20_connection_capability);
634 anqp->hs20_connection_capability =
Dmitry Shmidt04949592012-07-19 12:16:46 -0700635 wpabuf_alloc_copy(pos, slen);
636 }
637 break;
638 case HS20_STYPE_OPERATING_CLASS:
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700639 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
Dmitry Shmidt04949592012-07-19 12:16:46 -0700640 " Operating Class", MAC2STR(sa));
641 wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -0700642 if (anqp) {
643 wpabuf_free(anqp->hs20_operating_class);
644 anqp->hs20_operating_class =
Dmitry Shmidt04949592012-07-19 12:16:46 -0700645 wpabuf_alloc_copy(pos, slen);
646 }
647 break;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800648 case HS20_STYPE_OSU_PROVIDERS_LIST:
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700649 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800650 " OSU Providers list", MAC2STR(sa));
651 wpa_s->num_prov_found++;
652 if (anqp) {
653 wpabuf_free(anqp->hs20_osu_providers_list);
654 anqp->hs20_osu_providers_list =
655 wpabuf_alloc_copy(pos, slen);
656 }
657 break;
658 case HS20_STYPE_ICON_BINARY_FILE:
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800659 ret = hs20_process_icon_binary_file(wpa_s, sa, pos, slen,
660 dialog_token);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800661 if (wpa_s->fetch_osu_icon_in_progress) {
662 hs20_osu_icon_fetch_result(wpa_s, ret);
663 eloop_cancel_timeout(hs20_continue_icon_fetch,
664 wpa_s, NULL);
665 eloop_register_timeout(0, 0, hs20_continue_icon_fetch,
666 wpa_s, NULL);
667 }
668 break;
Roshan Pius3a1667e2018-07-03 15:17:14 -0700669 case HS20_STYPE_OPERATOR_ICON_METADATA:
670 wpa_msg(wpa_s, MSG_INFO, RX_HS20_ANQP MACSTR
671 " Operator Icon Metadata", MAC2STR(sa));
672 wpa_hexdump(MSG_DEBUG, "Operator Icon Metadata", pos, slen);
673 if (anqp) {
674 wpabuf_free(anqp->hs20_operator_icon_metadata);
675 anqp->hs20_operator_icon_metadata =
676 wpabuf_alloc_copy(pos, slen);
677 }
678 break;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700679 default:
680 wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);
681 break;
682 }
683}
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800684
685
686void hs20_notify_parse_done(struct wpa_supplicant *wpa_s)
687{
688 if (!wpa_s->fetch_osu_icon_in_progress)
689 return;
690 if (eloop_is_timeout_registered(hs20_continue_icon_fetch, wpa_s, NULL))
691 return;
692 /*
693 * We are going through icon fetch, but no icon response was received.
694 * Assume this means the current AP could not provide an answer to avoid
695 * getting stuck in fetch iteration.
696 */
697 hs20_icon_fetch_failed(wpa_s);
698}
699
700
701static void hs20_free_osu_prov_entry(struct osu_provider *prov)
702{
703}
704
705
706void hs20_free_osu_prov(struct wpa_supplicant *wpa_s)
707{
708 size_t i;
709 for (i = 0; i < wpa_s->osu_prov_count; i++)
710 hs20_free_osu_prov_entry(&wpa_s->osu_prov[i]);
711 os_free(wpa_s->osu_prov);
712 wpa_s->osu_prov = NULL;
713 wpa_s->osu_prov_count = 0;
714}
715
716
717static void hs20_osu_fetch_done(struct wpa_supplicant *wpa_s)
718{
719 char fname[256];
720 FILE *f;
721 size_t i, j;
722
723 wpa_s->fetch_osu_info = 0;
724 wpa_s->fetch_osu_icon_in_progress = 0;
725
726 if (wpa_s->conf->osu_dir == NULL) {
727 hs20_free_osu_prov(wpa_s);
728 wpa_s->fetch_anqp_in_progress = 0;
729 return;
730 }
731
732 snprintf(fname, sizeof(fname), "%s/osu-providers.txt",
733 wpa_s->conf->osu_dir);
734 f = fopen(fname, "w");
735 if (f == NULL) {
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -0700736 wpa_msg(wpa_s, MSG_INFO,
737 "Could not write OSU provider information");
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800738 hs20_free_osu_prov(wpa_s);
Dmitry Shmidt9c175262016-03-03 10:20:07 -0800739 wpa_s->fetch_anqp_in_progress = 0;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800740 return;
741 }
Dmitry Shmidt2f74e362015-01-21 13:19:05 -0800742
743 hs20_set_osu_access_permission(wpa_s->conf->osu_dir, fname);
744
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800745 for (i = 0; i < wpa_s->osu_prov_count; i++) {
746 struct osu_provider *osu = &wpa_s->osu_prov[i];
747 if (i > 0)
748 fprintf(f, "\n");
749 fprintf(f, "OSU-PROVIDER " MACSTR "\n"
750 "uri=%s\n"
751 "methods=%08x\n",
752 MAC2STR(osu->bssid), osu->server_uri, osu->osu_methods);
753 if (osu->osu_ssid_len) {
754 fprintf(f, "osu_ssid=%s\n",
755 wpa_ssid_txt(osu->osu_ssid,
756 osu->osu_ssid_len));
757 }
758 if (osu->osu_nai[0])
759 fprintf(f, "osu_nai=%s\n", osu->osu_nai);
760 for (j = 0; j < osu->friendly_name_count; j++) {
761 fprintf(f, "friendly_name=%s:%s\n",
762 osu->friendly_name[j].lang,
763 osu->friendly_name[j].text);
764 }
765 for (j = 0; j < osu->serv_desc_count; j++) {
766 fprintf(f, "desc=%s:%s\n",
767 osu->serv_desc[j].lang,
768 osu->serv_desc[j].text);
769 }
770 for (j = 0; j < osu->icon_count; j++) {
771 struct osu_icon *icon = &osu->icon[j];
772 if (icon->failed)
773 continue; /* could not fetch icon */
774 fprintf(f, "icon=%u:%u:%u:%s:%s:%s\n",
775 icon->id, icon->width, icon->height, icon->lang,
776 icon->icon_type, icon->filename);
777 }
778 }
779 fclose(f);
780 hs20_free_osu_prov(wpa_s);
781
782 wpa_msg(wpa_s, MSG_INFO, "OSU provider fetch completed");
783 wpa_s->fetch_anqp_in_progress = 0;
784}
785
786
787void hs20_next_osu_icon(struct wpa_supplicant *wpa_s)
788{
789 size_t i, j;
790
791 wpa_printf(MSG_DEBUG, "HS 2.0: Ready to fetch next icon");
792
793 for (i = 0; i < wpa_s->osu_prov_count; i++) {
794 struct osu_provider *osu = &wpa_s->osu_prov[i];
795 for (j = 0; j < osu->icon_count; j++) {
796 struct osu_icon *icon = &osu->icon[j];
797 if (icon->id || icon->failed)
798 continue;
799
800 wpa_printf(MSG_DEBUG, "HS 2.0: Try to fetch icon '%s' "
801 "from " MACSTR, icon->filename,
802 MAC2STR(osu->bssid));
803 os_get_reltime(&wpa_s->osu_icon_fetch_start);
804 if (hs20_anqp_send_req(wpa_s, osu->bssid,
805 BIT(HS20_STYPE_ICON_REQUEST),
806 (u8 *) icon->filename,
Dmitry Shmidt7d56b752015-12-22 10:59:44 -0800807 os_strlen(icon->filename),
808 0) < 0) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800809 icon->failed = 1;
810 continue;
811 }
812 return;
813 }
814 }
815
816 wpa_printf(MSG_DEBUG, "HS 2.0: No more icons to fetch");
817 hs20_osu_fetch_done(wpa_s);
818}
819
820
821static void hs20_osu_add_prov(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
822 const u8 *osu_ssid, u8 osu_ssid_len,
823 const u8 *pos, size_t len)
824{
825 struct osu_provider *prov;
826 const u8 *end = pos + len;
827 u16 len2;
828 const u8 *pos2;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800829 u8 uri_len, osu_method_len, osu_nai_len;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800830
831 wpa_hexdump(MSG_DEBUG, "HS 2.0: Parsing OSU Provider", pos, len);
832 prov = os_realloc_array(wpa_s->osu_prov,
833 wpa_s->osu_prov_count + 1,
834 sizeof(*prov));
835 if (prov == NULL)
836 return;
837 wpa_s->osu_prov = prov;
838 prov = &prov[wpa_s->osu_prov_count];
839 os_memset(prov, 0, sizeof(*prov));
840
841 os_memcpy(prov->bssid, bss->bssid, ETH_ALEN);
842 os_memcpy(prov->osu_ssid, osu_ssid, osu_ssid_len);
843 prov->osu_ssid_len = osu_ssid_len;
844
845 /* OSU Friendly Name Length */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800846 if (end - pos < 2) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800847 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
848 "Friendly Name Length");
849 return;
850 }
851 len2 = WPA_GET_LE16(pos);
852 pos += 2;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800853 if (len2 > end - pos) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800854 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
855 "Friendly Name Duples");
856 return;
857 }
858 pos2 = pos;
859 pos += len2;
860
861 /* OSU Friendly Name Duples */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800862 while (pos - pos2 >= 4 && prov->friendly_name_count < OSU_MAX_ITEMS) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800863 struct osu_lang_string *f;
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800864 if (1 + pos2[0] > pos - pos2 || pos2[0] < 3) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800865 wpa_printf(MSG_DEBUG, "Invalid OSU Friendly Name");
866 break;
867 }
868 f = &prov->friendly_name[prov->friendly_name_count++];
869 os_memcpy(f->lang, pos2 + 1, 3);
870 os_memcpy(f->text, pos2 + 1 + 3, pos2[0] - 3);
871 pos2 += 1 + pos2[0];
872 }
873
874 /* OSU Server URI */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800875 if (end - pos < 1) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800876 wpa_printf(MSG_DEBUG,
877 "HS 2.0: Not enough room for OSU Server URI length");
878 return;
879 }
880 uri_len = *pos++;
881 if (uri_len > end - pos) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800882 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Server "
883 "URI");
884 return;
885 }
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800886 os_memcpy(prov->server_uri, pos, uri_len);
887 pos += uri_len;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800888
889 /* OSU Method list */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800890 if (end - pos < 1) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800891 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
892 "list length");
893 return;
894 }
895 osu_method_len = pos[0];
896 if (osu_method_len > end - pos - 1) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800897 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU Method "
898 "list");
899 return;
900 }
901 pos2 = pos + 1;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800902 pos += 1 + osu_method_len;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800903 while (pos2 < pos) {
904 if (*pos2 < 32)
905 prov->osu_methods |= BIT(*pos2);
906 pos2++;
907 }
908
909 /* Icons Available Length */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800910 if (end - pos < 2) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800911 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
912 "Available Length");
913 return;
914 }
915 len2 = WPA_GET_LE16(pos);
916 pos += 2;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800917 if (len2 > end - pos) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800918 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for Icons "
919 "Available");
920 return;
921 }
922 pos2 = pos;
923 pos += len2;
924
925 /* Icons Available */
926 while (pos2 < pos) {
927 struct osu_icon *icon = &prov->icon[prov->icon_count];
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800928 u8 flen;
929
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800930 if (2 + 2 + 3 + 1 + 1 > pos - pos2) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800931 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid Icon Metadata");
932 break;
933 }
934
935 icon->width = WPA_GET_LE16(pos2);
936 pos2 += 2;
937 icon->height = WPA_GET_LE16(pos2);
938 pos2 += 2;
939 os_memcpy(icon->lang, pos2, 3);
940 pos2 += 3;
941
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800942 flen = *pos2++;
943 if (flen > pos - pos2) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800944 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon Type");
945 break;
946 }
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800947 os_memcpy(icon->icon_type, pos2, flen);
948 pos2 += flen;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800949
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800950 if (pos - pos2 < 1) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800951 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
952 "Filename length");
953 break;
954 }
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800955 flen = *pos2++;
956 if (flen > pos - pos2) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800957 wpa_printf(MSG_DEBUG, "HS 2.0: Not room for Icon "
958 "Filename");
959 break;
960 }
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800961 os_memcpy(icon->filename, pos2, flen);
962 pos2 += flen;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800963
964 prov->icon_count++;
965 }
966
967 /* OSU_NAI */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800968 if (end - pos < 1) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800969 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
970 return;
971 }
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800972 osu_nai_len = *pos++;
973 if (osu_nai_len > end - pos) {
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800974 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU_NAI");
975 return;
976 }
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800977 os_memcpy(prov->osu_nai, pos, osu_nai_len);
978 pos += osu_nai_len;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800979
980 /* OSU Service Description Length */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800981 if (end - pos < 2) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800982 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
983 "Service Description Length");
984 return;
985 }
986 len2 = WPA_GET_LE16(pos);
987 pos += 2;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800988 if (len2 > end - pos) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800989 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for OSU "
990 "Service Description Duples");
991 return;
992 }
993 pos2 = pos;
994 pos += len2;
995
996 /* OSU Service Description Duples */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -0800997 while (pos - pos2 >= 4 && prov->serv_desc_count < OSU_MAX_ITEMS) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800998 struct osu_lang_string *f;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800999 u8 descr_len;
1000
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001001 descr_len = *pos2++;
1002 if (descr_len > pos - pos2 || descr_len < 3) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001003 wpa_printf(MSG_DEBUG, "Invalid OSU Service "
1004 "Description");
1005 break;
1006 }
1007 f = &prov->serv_desc[prov->serv_desc_count++];
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001008 os_memcpy(f->lang, pos2, 3);
1009 os_memcpy(f->text, pos2 + 3, descr_len - 3);
1010 pos2 += descr_len;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001011 }
1012
1013 wpa_printf(MSG_DEBUG, "HS 2.0: Added OSU Provider through " MACSTR,
1014 MAC2STR(bss->bssid));
1015 wpa_s->osu_prov_count++;
1016}
1017
1018
1019void hs20_osu_icon_fetch(struct wpa_supplicant *wpa_s)
1020{
1021 struct wpa_bss *bss;
1022 struct wpabuf *prov_anqp;
1023 const u8 *pos, *end;
1024 u16 len;
1025 const u8 *osu_ssid;
1026 u8 osu_ssid_len;
1027 u8 num_providers;
1028
1029 hs20_free_osu_prov(wpa_s);
1030
1031 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1032 if (bss->anqp == NULL)
1033 continue;
1034 prov_anqp = bss->anqp->hs20_osu_providers_list;
1035 if (prov_anqp == NULL)
1036 continue;
1037 wpa_printf(MSG_DEBUG, "HS 2.0: Parsing OSU Providers list from "
1038 MACSTR, MAC2STR(bss->bssid));
1039 wpa_hexdump_buf(MSG_DEBUG, "HS 2.0: OSU Providers list",
1040 prov_anqp);
1041 pos = wpabuf_head(prov_anqp);
1042 end = pos + wpabuf_len(prov_anqp);
1043
1044 /* OSU SSID */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001045 if (end - pos < 1)
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001046 continue;
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001047 if (1 + pos[0] > end - pos) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001048 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1049 "OSU SSID");
1050 continue;
1051 }
1052 osu_ssid_len = *pos++;
Dmitry Shmidt9d9e6022015-04-23 10:34:55 -07001053 if (osu_ssid_len > SSID_MAX_LEN) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001054 wpa_printf(MSG_DEBUG, "HS 2.0: Invalid OSU SSID "
1055 "Length %u", osu_ssid_len);
1056 continue;
1057 }
1058 osu_ssid = pos;
1059 pos += osu_ssid_len;
1060
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001061 if (end - pos < 1) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001062 wpa_printf(MSG_DEBUG, "HS 2.0: Not enough room for "
1063 "Number of OSU Providers");
1064 continue;
1065 }
1066 num_providers = *pos++;
1067 wpa_printf(MSG_DEBUG, "HS 2.0: Number of OSU Providers: %u",
1068 num_providers);
1069
1070 /* OSU Providers */
Dmitry Shmidtd80a4012015-11-05 16:35:40 -08001071 while (end - pos > 2 && num_providers > 0) {
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001072 num_providers--;
1073 len = WPA_GET_LE16(pos);
1074 pos += 2;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001075 if (len > (unsigned int) (end - pos))
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001076 break;
1077 hs20_osu_add_prov(wpa_s, bss, osu_ssid,
1078 osu_ssid_len, pos, len);
1079 pos += len;
1080 }
1081
1082 if (pos != end) {
1083 wpa_printf(MSG_DEBUG, "HS 2.0: Ignored %d bytes of "
1084 "extra data after OSU Providers",
1085 (int) (end - pos));
1086 }
1087 }
1088
1089 wpa_s->fetch_osu_icon_in_progress = 1;
1090 hs20_next_osu_icon(wpa_s);
1091}
1092
1093
1094static void hs20_osu_scan_res_handler(struct wpa_supplicant *wpa_s,
1095 struct wpa_scan_results *scan_res)
1096{
1097 wpa_printf(MSG_DEBUG, "OSU provisioning fetch scan completed");
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001098 if (!wpa_s->fetch_osu_waiting_scan) {
1099 wpa_printf(MSG_DEBUG, "OSU fetch have been canceled");
1100 return;
1101 }
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001102 wpa_s->network_select = 0;
1103 wpa_s->fetch_all_anqp = 1;
1104 wpa_s->fetch_osu_info = 1;
1105 wpa_s->fetch_osu_icon_in_progress = 0;
1106
1107 interworking_start_fetch_anqp(wpa_s);
1108}
1109
1110
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -07001111int hs20_fetch_osu(struct wpa_supplicant *wpa_s, int skip_scan)
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001112{
1113 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1114 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1115 "interface disabled");
1116 return -1;
1117 }
1118
1119 if (wpa_s->scanning) {
1120 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1121 "scanning");
1122 return -1;
1123 }
1124
1125 if (wpa_s->conf->osu_dir == NULL) {
1126 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1127 "osu_dir not configured");
1128 return -1;
1129 }
1130
1131 if (wpa_s->fetch_anqp_in_progress || wpa_s->network_select) {
1132 wpa_printf(MSG_DEBUG, "HS 2.0: Cannot start fetch_osu - "
1133 "fetch in progress (%d, %d)",
1134 wpa_s->fetch_anqp_in_progress,
1135 wpa_s->network_select);
1136 return -1;
1137 }
1138
1139 wpa_msg(wpa_s, MSG_INFO, "Starting OSU provisioning information fetch");
1140 wpa_s->num_osu_scans = 0;
1141 wpa_s->num_prov_found = 0;
Dmitry Shmidt58d12ad2016-07-28 10:07:03 -07001142 if (skip_scan) {
1143 wpa_s->network_select = 0;
1144 wpa_s->fetch_all_anqp = 1;
1145 wpa_s->fetch_osu_info = 1;
1146 wpa_s->fetch_osu_icon_in_progress = 0;
1147
1148 interworking_start_fetch_anqp(wpa_s);
1149 } else {
1150 hs20_start_osu_scan(wpa_s);
1151 }
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001152
1153 return 0;
1154}
1155
1156
1157void hs20_start_osu_scan(struct wpa_supplicant *wpa_s)
1158{
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001159 wpa_s->fetch_osu_waiting_scan = 1;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001160 wpa_s->num_osu_scans++;
1161 wpa_s->scan_req = MANUAL_SCAN_REQ;
1162 wpa_s->scan_res_handler = hs20_osu_scan_res_handler;
1163 wpa_supplicant_req_scan(wpa_s, 0, 0);
1164}
1165
1166
1167void hs20_cancel_fetch_osu(struct wpa_supplicant *wpa_s)
1168{
1169 wpa_printf(MSG_DEBUG, "Cancel OSU fetch");
1170 interworking_stop_fetch_anqp(wpa_s);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001171 wpa_s->fetch_osu_waiting_scan = 0;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001172 wpa_s->network_select = 0;
1173 wpa_s->fetch_osu_info = 0;
1174 wpa_s->fetch_osu_icon_in_progress = 0;
1175}
1176
1177
1178void hs20_icon_fetch_failed(struct wpa_supplicant *wpa_s)
1179{
1180 hs20_osu_icon_fetch_result(wpa_s, -1);
1181 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1182 eloop_register_timeout(0, 0, hs20_continue_icon_fetch, wpa_s, NULL);
1183}
1184
1185
1186void hs20_rx_subscription_remediation(struct wpa_supplicant *wpa_s,
1187 const char *url, u8 osu_method)
1188{
1189 if (url)
1190 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION "%u %s",
1191 osu_method, url);
1192 else
1193 wpa_msg(wpa_s, MSG_INFO, HS20_SUBSCRIPTION_REMEDIATION);
Roshan Pius04a9d742016-12-12 12:40:46 -08001194 wpas_notify_hs20_rx_subscription_remediation(wpa_s, url, osu_method);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001195}
1196
1197
1198void hs20_rx_deauth_imminent_notice(struct wpa_supplicant *wpa_s, u8 code,
1199 u16 reauth_delay, const char *url)
1200{
1201 if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1202 wpa_printf(MSG_DEBUG, "HS 2.0: Ignore deauthentication imminent notice since PMF was not enabled");
1203 return;
1204 }
1205
1206 wpa_msg(wpa_s, MSG_INFO, HS20_DEAUTH_IMMINENT_NOTICE "%u %u %s",
1207 code, reauth_delay, url);
Roshan Pius04a9d742016-12-12 12:40:46 -08001208 wpas_notify_hs20_rx_deauth_imminent_notice(wpa_s, code, reauth_delay, url);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001209
1210 if (code == HS20_DEAUTH_REASON_CODE_BSS) {
1211 wpa_printf(MSG_DEBUG, "HS 2.0: Add BSS to blacklist");
1212 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1213 /* TODO: For now, disable full ESS since some drivers may not
1214 * support disabling per BSS. */
1215 if (wpa_s->current_ssid) {
Dmitry Shmidt4582d2a2014-02-28 11:14:23 -08001216 struct os_reltime now;
1217 os_get_reltime(&now);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001218 if (now.sec + reauth_delay <=
1219 wpa_s->current_ssid->disabled_until.sec)
1220 return;
1221 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds (BSS)",
1222 reauth_delay);
1223 wpa_s->current_ssid->disabled_until.sec =
1224 now.sec + reauth_delay;
1225 }
1226 }
1227
1228 if (code == HS20_DEAUTH_REASON_CODE_ESS && wpa_s->current_ssid) {
Dmitry Shmidt4582d2a2014-02-28 11:14:23 -08001229 struct os_reltime now;
1230 os_get_reltime(&now);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001231 if (now.sec + reauth_delay <=
1232 wpa_s->current_ssid->disabled_until.sec)
1233 return;
1234 wpa_printf(MSG_DEBUG, "HS 2.0: Disable network for %u seconds",
1235 reauth_delay);
1236 wpa_s->current_ssid->disabled_until.sec =
1237 now.sec + reauth_delay;
1238 }
1239}
Dmitry Shmidt684785c2014-05-12 13:34:29 -07001240
1241
Roshan Pius3a1667e2018-07-03 15:17:14 -07001242void hs20_rx_t_c_acceptance(struct wpa_supplicant *wpa_s, const char *url)
1243{
1244 if (!wpa_sm_pmf_enabled(wpa_s->wpa)) {
1245 wpa_printf(MSG_DEBUG,
1246 "HS 2.0: Ignore Terms and Conditions Acceptance since PMF was not enabled");
1247 return;
1248 }
1249
1250 wpa_msg(wpa_s, MSG_INFO, HS20_T_C_ACCEPTANCE "%s", url);
1251}
1252
1253
Dmitry Shmidt7d56b752015-12-22 10:59:44 -08001254void hs20_init(struct wpa_supplicant *wpa_s)
1255{
1256 dl_list_init(&wpa_s->icon_head);
1257}
1258
1259
Dmitry Shmidt684785c2014-05-12 13:34:29 -07001260void hs20_deinit(struct wpa_supplicant *wpa_s)
1261{
1262 eloop_cancel_timeout(hs20_continue_icon_fetch, wpa_s, NULL);
1263 hs20_free_osu_prov(wpa_s);
Dmitry Shmidt7d56b752015-12-22 10:59:44 -08001264 if (wpa_s->icon_head.next)
1265 hs20_del_icon(wpa_s, NULL, NULL);
Dmitry Shmidt684785c2014-05-12 13:34:29 -07001266}