5 * Copyright (C) 2007-2012 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
31 #include <sys/ioctl.h>
32 #include <sys/socket.h>
33 #include <linux/if_arp.h>
34 #include <linux/wireless.h>
35 #include <net/ethernet.h>
38 #define IFF_LOWER_UP 0x10000
41 #include <dbus/dbus.h>
44 #define CONNMAN_API_SUBJECT_TO_CHANGE
45 #include <connman/plugin.h>
46 #include <connman/inet.h>
47 #include <connman/device.h>
48 #include <connman/rtnl.h>
49 #include <connman/technology.h>
50 #include <connman/log.h>
51 #include <connman/option.h>
52 #include <connman/storage.h>
53 #include <include/setting.h>
55 #include <gsupplicant/gsupplicant.h>
57 #define CLEANUP_TIMEOUT 8 /* in seconds */
58 #define INACTIVE_TIMEOUT 12 /* in seconds */
59 #define MAXIMUM_RETRIES 4
61 #define BGSCAN_DEFAULT "simple:30:-45:300"
62 #define AUTOSCAN_DEFAULT "exponential:3:300"
64 static struct connman_technology *wifi_technology = NULL;
66 struct hidden_params {
68 unsigned int ssid_len;
75 * Used for autoscan "emulation".
76 * Should be removed when wpa_s autoscan support will be by default.
78 struct autoscan_params {
87 struct connman_device *device;
88 struct connman_network *network;
89 struct connman_network *pending_network;
91 GSupplicantInterface *interface;
92 GSupplicantState state;
93 connman_bool_t connected;
94 connman_bool_t disconnecting;
95 connman_bool_t tethering;
96 connman_bool_t bridged;
102 struct hidden_params *hidden;
104 * autoscan "emulation".
106 struct autoscan_params *autoscan;
109 static GList *iface_list = NULL;
111 static void handle_tethering(struct wifi_data *wifi)
113 if (wifi->tethering == FALSE)
116 if (wifi->bridge == NULL)
119 if (wifi->bridged == TRUE)
122 DBG("index %d bridge %s", wifi->index, wifi->bridge);
124 if (connman_inet_add_to_bridge(wifi->index, wifi->bridge) < 0)
127 wifi->bridged = TRUE;
130 static void wifi_newlink(unsigned flags, unsigned change, void *user_data)
132 struct connman_device *device = user_data;
133 struct wifi_data *wifi = connman_device_get_data(device);
135 DBG("index %d flags %d change %d", wifi->index, flags, change);
140 if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
144 DBG("interface down");
147 if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
148 if (flags & IFF_LOWER_UP) {
151 handle_tethering(wifi);
159 static int wifi_probe(struct connman_device *device)
161 struct wifi_data *wifi;
163 DBG("device %p", device);
165 wifi = g_try_new0(struct wifi_data, 1);
169 wifi->connected = FALSE;
170 wifi->disconnecting = FALSE;
171 wifi->tethering = FALSE;
172 wifi->bridged = FALSE;
174 wifi->state = G_SUPPLICANT_STATE_INACTIVE;
176 connman_device_set_data(device, wifi);
177 wifi->device = connman_device_ref(device);
179 wifi->index = connman_device_get_index(device);
182 wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
183 wifi_newlink, device);
185 iface_list = g_list_append(iface_list, wifi);
190 static void remove_networks(struct connman_device *device,
191 struct wifi_data *wifi)
195 for (list = wifi->networks; list != NULL; list = list->next) {
196 struct connman_network *network = list->data;
198 connman_device_remove_network(device, network);
199 connman_network_unref(network);
202 g_slist_free(wifi->networks);
203 wifi->networks = NULL;
206 static void stop_autoscan(struct connman_device *device)
208 struct wifi_data *wifi = connman_device_get_data(device);
209 struct autoscan_params *autoscan;
213 if (wifi == NULL || wifi->autoscan == NULL)
216 autoscan = wifi->autoscan;
218 if (autoscan->timeout == 0 && autoscan->interval == 0)
221 g_source_remove(autoscan->timeout);
223 autoscan->timeout = 0;
224 autoscan->interval = 0;
226 connman_device_set_scanning(device, FALSE);
228 connman_device_unref(device);
231 static void wifi_remove(struct connman_device *device)
233 struct wifi_data *wifi = connman_device_get_data(device);
235 DBG("device %p wifi %p", device, wifi);
240 iface_list = g_list_remove(iface_list, wifi);
242 remove_networks(device, wifi);
244 connman_device_set_powered(device, FALSE);
245 connman_device_set_data(device, NULL);
246 connman_device_unref(wifi->device);
247 connman_rtnl_remove_watch(wifi->watch);
249 g_supplicant_interface_set_data(wifi->interface, NULL);
251 g_free(wifi->autoscan);
252 g_free(wifi->identifier);
256 static int add_scan_param(gchar *hex_ssid, int freq,
257 GSupplicantScanParams *scan_data,
258 int driver_max_scan_ssids)
261 struct scan_ssid *scan_ssid;
263 if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
265 unsigned int j = 0, hex;
266 size_t hex_ssid_len = strlen(hex_ssid);
268 ssid = g_try_malloc0(hex_ssid_len / 2);
272 for (i = 0; i < hex_ssid_len; i += 2) {
273 sscanf(hex_ssid + i, "%02x", &hex);
277 scan_ssid = g_try_new(struct scan_ssid, 1);
278 if (scan_ssid == NULL) {
283 memcpy(scan_ssid->ssid, ssid, j);
284 scan_ssid->ssid_len = j;
285 scan_data->ssids = g_slist_prepend(scan_data->ssids,
288 scan_data->num_ssids++;
294 scan_data->ssids = g_slist_reverse(scan_data->ssids);
296 if (scan_data->freqs == NULL) {
297 scan_data->freqs = g_try_malloc0(sizeof(uint16_t) *
298 scan_data->num_ssids);
299 if (scan_data->freqs == NULL) {
300 g_slist_free_full(scan_data->ssids, g_free);
304 scan_data->freqs = g_try_realloc(scan_data->freqs,
305 sizeof(uint16_t) * scan_data->num_ssids);
306 if (scan_data->freqs == NULL) {
307 g_slist_free_full(scan_data->ssids, g_free);
310 scan_data->freqs[scan_data->num_ssids - 1] = 0;
313 /* Don't add duplicate entries */
314 for (i = 0; i < scan_data->num_ssids; i++) {
315 if (scan_data->freqs[i] == 0) {
316 scan_data->freqs[i] = freq;
318 } else if (scan_data->freqs[i] == freq)
325 static int get_hidden_connections(int max_ssids,
326 GSupplicantScanParams *scan_data)
334 int num_ssids = 0, add_param_failed = 0;
336 services = connman_storage_get_services();
337 for (i = 0; services && services[i]; i++) {
338 if (strncmp(services[i], "wifi_", 5) != 0)
341 keyfile = connman_storage_load_service(services[i]);
343 value = g_key_file_get_boolean(keyfile,
344 services[i], "Hidden", NULL);
345 if (value == FALSE) {
346 g_key_file_free(keyfile);
350 value = g_key_file_get_boolean(keyfile,
351 services[i], "Favorite", NULL);
352 if (value == FALSE) {
353 g_key_file_free(keyfile);
357 value = g_key_file_get_boolean(keyfile,
358 services[i], "AutoConnect", NULL);
359 if (value == FALSE) {
360 g_key_file_free(keyfile);
364 ssid = g_key_file_get_string(keyfile,
365 services[i], "SSID", NULL);
367 freq = g_key_file_get_integer(keyfile, services[i],
370 if (add_scan_param(ssid, freq, scan_data, max_ssids) < 0) {
371 str = g_key_file_get_string(keyfile,
372 services[i], "Name", NULL);
373 DBG("Cannot scan %s (%s)", ssid, str);
380 g_key_file_free(keyfile);
383 if (add_param_failed > 0)
384 connman_warn("Unable to scan %d out of %d SSIDs (max is %d)",
385 add_param_failed, num_ssids, max_ssids);
387 g_strfreev(services);
389 return num_ssids > max_ssids ? max_ssids : num_ssids;
392 static int throw_wifi_scan(struct connman_device *device,
393 GSupplicantInterfaceCallback callback)
395 struct wifi_data *wifi = connman_device_get_data(device);
398 DBG("device %p %p", device, wifi->interface);
400 if (wifi->tethering == TRUE)
403 if (connman_device_get_scanning(device) == TRUE)
406 connman_device_ref(device);
408 ret = g_supplicant_interface_scan(wifi->interface, NULL,
411 connman_device_set_scanning(device, TRUE);
413 connman_device_unref(device);
418 static void hidden_scan_callback(int result,
419 GSupplicantInterface *interface, void *user_data)
421 struct connman_device *device = user_data;
423 DBG("result %d", result);
425 connman_device_set_scanning(device, FALSE);
426 connman_device_unref(device);
429 static void autoscan_scan_callback(int result,
430 GSupplicantInterface *interface, void *user_data)
432 struct connman_device *device = user_data;
433 struct wifi_data *wifi = connman_device_get_data(device);
434 int driver_max_ssids;
436 DBG("result %d", result);
439 * Scan hidden networks so that we can autoconnect to them.
441 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
443 DBG("max ssids %d", driver_max_ssids);
445 if (driver_max_ssids > 0) {
446 GSupplicantScanParams *scan_params;
449 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
450 if (scan_params == NULL)
453 if (get_hidden_connections(driver_max_ssids,
455 ret = g_supplicant_interface_scan(wifi->interface,
457 hidden_scan_callback,
463 g_supplicant_free_scan_params(scan_params);
467 connman_device_set_scanning(device, FALSE);
468 connman_device_unref(device);
471 static gboolean autoscan_timeout(gpointer data)
473 struct connman_device *device = data;
474 struct wifi_data *wifi = connman_device_get_data(device);
475 struct autoscan_params *autoscan;
478 autoscan = wifi->autoscan;
480 if (autoscan->interval <= 0) {
481 interval = autoscan->base;
484 interval = autoscan->interval * autoscan->base;
486 if (autoscan->interval >= autoscan->limit)
487 interval = autoscan->limit;
489 throw_wifi_scan(wifi->device, autoscan_scan_callback);
492 DBG("interval %d", interval);
494 autoscan->interval = interval;
496 autoscan->timeout = g_timeout_add_seconds(interval,
497 autoscan_timeout, device);
502 static void start_autoscan(struct connman_device *device)
504 struct wifi_data *wifi = connman_device_get_data(device);
505 struct autoscan_params *autoscan;
512 autoscan = wifi->autoscan;
513 if (autoscan == NULL)
516 if (autoscan->timeout > 0 || autoscan->interval > 0)
519 connman_device_ref(device);
521 autoscan_timeout(device);
524 static struct autoscan_params *parse_autoscan_params(const char *params)
526 struct autoscan_params *autoscan;
531 DBG("Emulating autoscan");
533 list_params = g_strsplit(params, ":", 0);
534 if (list_params == 0)
537 if (g_strv_length(list_params) < 3) {
538 g_strfreev(list_params);
542 base = atoi(list_params[1]);
543 limit = atoi(list_params[2]);
545 g_strfreev(list_params);
547 autoscan = g_try_malloc0(sizeof(struct autoscan_params));
548 if (autoscan == NULL) {
549 DBG("Could not allocate memory for autoscan");
553 DBG("base %d - limit %d", base, limit);
554 autoscan->base = base;
555 autoscan->limit = limit;
560 static void setup_autoscan(struct wifi_data *wifi)
562 if (wifi->autoscan == NULL)
563 wifi->autoscan = parse_autoscan_params(AUTOSCAN_DEFAULT);
565 start_autoscan(wifi->device);
568 static void interface_create_callback(int result,
569 GSupplicantInterface *interface,
572 struct wifi_data *wifi = user_data;
574 DBG("result %d ifname %s, wifi %p", result,
575 g_supplicant_interface_get_ifname(interface),
578 if (result < 0 || wifi == NULL)
581 wifi->interface = interface;
582 g_supplicant_interface_set_data(interface, wifi);
584 if (g_supplicant_interface_get_ready(interface) == FALSE)
587 DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
589 if (wifi->device == NULL) {
590 connman_error("WiFi device not set");
594 connman_device_set_powered(wifi->device, TRUE);
596 if (connman_setting_get_bool("BackgroundScanning") == FALSE)
599 /* Setting up automatic scanning */
600 setup_autoscan(wifi);
603 static int wifi_enable(struct connman_device *device)
605 struct wifi_data *wifi = connman_device_get_data(device);
606 const char *interface = connman_device_get_string(device, "Interface");
607 const char *driver = connman_option_get_string("wifi");
610 DBG("device %p %p", device, wifi);
612 ret = g_supplicant_interface_create(interface, driver, NULL,
613 interface_create_callback,
621 static int wifi_disable(struct connman_device *device)
623 struct wifi_data *wifi = connman_device_get_data(device);
626 DBG("device %p", device);
628 wifi->connected = FALSE;
629 wifi->disconnecting = FALSE;
631 if (wifi->pending_network != NULL)
632 wifi->pending_network = NULL;
634 stop_autoscan(device);
636 /* In case of a user scan, device is still referenced */
637 if (connman_device_get_scanning(device) == TRUE) {
638 connman_device_set_scanning(device, FALSE);
639 connman_device_unref(wifi->device);
642 remove_networks(device, wifi);
644 ret = g_supplicant_interface_remove(wifi->interface, NULL, NULL);
651 static void hidden_free(struct hidden_params *hidden)
656 g_free(hidden->identity);
657 g_free(hidden->passphrase);
661 static void scan_callback(int result, GSupplicantInterface *interface,
664 struct connman_device *device = user_data;
665 struct wifi_data *wifi = connman_device_get_data(device);
667 DBG("result %d", result);
669 if (wifi != NULL && wifi->hidden != NULL) {
670 connman_network_clear_hidden(wifi->hidden->user_data);
671 hidden_free(wifi->hidden);
676 connman_device_reset_scanning(device);
678 connman_device_set_scanning(device, FALSE);
679 connman_device_unref(device);
681 start_autoscan(device);
684 struct last_connected {
690 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
692 GTimeVal *aval = (GTimeVal *)a;
693 GTimeVal *bval = (GTimeVal *)b;
695 /* Note that the sort order is descending */
696 if (aval->tv_sec < bval->tv_sec)
699 if (aval->tv_sec > bval->tv_sec)
705 static void free_entry(gpointer data)
707 struct last_connected *entry = data;
713 static int get_latest_connections(int max_ssids,
714 GSupplicantScanParams *scan_data)
717 GSequence *latest_list;
718 struct last_connected *entry;
727 latest_list = g_sequence_new(free_entry);
728 if (latest_list == NULL)
731 services = connman_storage_get_services();
732 for (i = 0; services && services[i]; i++) {
733 if (strncmp(services[i], "wifi_", 5) != 0)
736 keyfile = connman_storage_load_service(services[i]);
738 str = g_key_file_get_string(keyfile,
739 services[i], "Favorite", NULL);
740 if (str == NULL || g_strcmp0(str, "true")) {
743 g_key_file_free(keyfile);
748 str = g_key_file_get_string(keyfile,
749 services[i], "AutoConnect", NULL);
750 if (str == NULL || g_strcmp0(str, "true")) {
753 g_key_file_free(keyfile);
758 str = g_key_file_get_string(keyfile,
759 services[i], "Modified", NULL);
761 g_time_val_from_iso8601(str, &modified);
765 ssid = g_key_file_get_string(keyfile,
766 services[i], "SSID", NULL);
768 freq = g_key_file_get_integer(keyfile, services[i],
771 entry = g_try_new(struct last_connected, 1);
773 g_sequence_free(latest_list);
774 g_key_file_free(keyfile);
780 entry->modified = modified;
783 g_sequence_insert_sorted(latest_list, entry,
789 g_key_file_free(keyfile);
792 g_strfreev(services);
794 num_ssids = num_ssids > max_ssids ? max_ssids : num_ssids;
796 iter = g_sequence_get_begin_iter(latest_list);
798 for (i = 0; i < num_ssids; i++) {
799 entry = g_sequence_get(iter);
801 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
802 entry->modified.tv_sec);
804 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
806 iter = g_sequence_iter_next(iter);
809 g_sequence_free(latest_list);
813 static int wifi_scan(struct connman_device *device)
815 stop_autoscan(device);
817 return throw_wifi_scan(device, scan_callback);
820 static int wifi_scan_fast(struct connman_device *device)
822 struct wifi_data *wifi = connman_device_get_data(device);
823 GSupplicantScanParams *scan_params = NULL;
825 int driver_max_ssids = 0;
827 DBG("device %p %p", device, wifi->interface);
829 if (wifi->tethering == TRUE)
832 stop_autoscan(device);
834 if (connman_device_get_scanning(device) == TRUE)
837 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
839 DBG("max ssids %d", driver_max_ssids);
840 if (driver_max_ssids == 0)
841 return wifi_scan(device);
843 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
844 if (scan_params == NULL)
847 ret = get_latest_connections(driver_max_ssids, scan_params);
849 g_supplicant_free_scan_params(scan_params);
850 return wifi_scan(device);
853 connman_device_ref(device);
854 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
855 scan_callback, device);
857 connman_device_set_scanning(device, TRUE);
859 g_supplicant_free_scan_params(scan_params);
860 connman_device_unref(device);
867 * This func is only used when connecting to this specific AP first time.
868 * It is not used when system autoconnects to hidden AP.
870 static int wifi_scan_hidden(struct connman_device *device,
871 const char *ssid, unsigned int ssid_len,
872 const char *identity, const char* passphrase,
875 struct wifi_data *wifi = connman_device_get_data(device);
876 GSupplicantScanParams *scan_params = NULL;
877 struct scan_ssid *scan_ssid;
878 struct hidden_params *hidden;
881 DBG("hidden SSID %s", ssid);
883 if (wifi->tethering == TRUE || wifi->hidden != NULL)
886 if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
889 stop_autoscan(device);
891 if (connman_device_get_scanning(device) == TRUE)
894 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
895 if (scan_params == NULL)
898 scan_ssid = g_try_new(struct scan_ssid, 1);
899 if (scan_ssid == NULL) {
904 memcpy(scan_ssid->ssid, ssid, ssid_len);
905 scan_ssid->ssid_len = ssid_len;
906 scan_params->ssids = g_slist_prepend(scan_params->ssids, scan_ssid);
908 scan_params->num_ssids = 1;
910 hidden = g_try_new0(struct hidden_params, 1);
911 if (hidden == NULL) {
915 memcpy(hidden->ssid, ssid, ssid_len);
916 hidden->ssid_len = ssid_len;
917 hidden->identity = g_strdup(identity);
918 hidden->passphrase = g_strdup(passphrase);
919 hidden->user_data = user_data;
920 wifi->hidden = hidden;
922 connman_device_ref(device);
923 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
924 scan_callback, device);
926 connman_device_set_scanning(device, TRUE);
928 connman_device_unref(device);
929 g_supplicant_free_scan_params(scan_params);
930 hidden_free(wifi->hidden);
937 static struct connman_device_driver wifi_ng_driver = {
939 .type = CONNMAN_DEVICE_TYPE_WIFI,
940 .priority = CONNMAN_DEVICE_PRIORITY_LOW,
942 .remove = wifi_remove,
943 .enable = wifi_enable,
944 .disable = wifi_disable,
946 .scan_fast = wifi_scan_fast,
947 .scan_hidden = wifi_scan_hidden,
950 static void system_ready(void)
954 if (connman_device_driver_register(&wifi_ng_driver) < 0)
955 connman_error("Failed to register WiFi driver");
958 static void system_killed(void)
962 connman_device_driver_unregister(&wifi_ng_driver);
965 static int network_probe(struct connman_network *network)
967 DBG("network %p", network);
972 static void network_remove(struct connman_network *network)
974 struct connman_device *device = connman_network_get_device(network);
975 struct wifi_data *wifi;
977 DBG("network %p", network);
979 wifi = connman_device_get_data(device);
983 if (wifi->network != network)
986 wifi->network = NULL;
989 static void connect_callback(int result, GSupplicantInterface *interface,
992 struct connman_network *network = user_data;
994 DBG("network %p result %d", network, result);
996 if (result == -ENOKEY) {
997 connman_network_set_error(network,
998 CONNMAN_NETWORK_ERROR_INVALID_KEY);
999 } else if (result < 0) {
1000 connman_network_set_error(network,
1001 CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
1005 static GSupplicantSecurity network_security(const char *security)
1007 if (g_str_equal(security, "none") == TRUE)
1008 return G_SUPPLICANT_SECURITY_NONE;
1009 else if (g_str_equal(security, "wep") == TRUE)
1010 return G_SUPPLICANT_SECURITY_WEP;
1011 else if (g_str_equal(security, "psk") == TRUE)
1012 return G_SUPPLICANT_SECURITY_PSK;
1013 else if (g_str_equal(security, "wpa") == TRUE)
1014 return G_SUPPLICANT_SECURITY_PSK;
1015 else if (g_str_equal(security, "rsn") == TRUE)
1016 return G_SUPPLICANT_SECURITY_PSK;
1017 else if (g_str_equal(security, "ieee8021x") == TRUE)
1018 return G_SUPPLICANT_SECURITY_IEEE8021X;
1020 return G_SUPPLICANT_SECURITY_UNKNOWN;
1023 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
1025 const char *security, *passphrase, *agent_passphrase;
1027 memset(ssid, 0, sizeof(*ssid));
1028 ssid->mode = G_SUPPLICANT_MODE_INFRA;
1029 ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
1031 ssid->scan_ssid = 1;
1032 security = connman_network_get_string(network, "WiFi.Security");
1033 ssid->security = network_security(security);
1034 passphrase = connman_network_get_string(network,
1036 if (passphrase == NULL || strlen(passphrase) == 0) {
1038 /* Use agent provided passphrase as a fallback */
1039 agent_passphrase = connman_network_get_string(network,
1040 "WiFi.AgentPassphrase");
1042 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
1043 ssid->passphrase = NULL;
1045 ssid->passphrase = agent_passphrase;
1047 ssid->passphrase = passphrase;
1049 ssid->eap = connman_network_get_string(network, "WiFi.EAP");
1052 * If our private key password is unset,
1053 * we use the supplied passphrase. That is needed
1054 * for PEAP where 2 passphrases (identity and client
1055 * cert may have to be provided.
1057 if (connman_network_get_string(network,
1058 "WiFi.PrivateKeyPassphrase") == NULL)
1059 connman_network_set_string(network,
1060 "WiFi.PrivateKeyPassphrase",
1062 /* We must have an identity for both PEAP and TLS */
1063 ssid->identity = connman_network_get_string(network, "WiFi.Identity");
1065 /* Use agent provided identity as a fallback */
1066 if (ssid->identity == NULL || strlen(ssid->identity) == 0)
1067 ssid->identity = connman_network_get_string(network,
1068 "WiFi.AgentIdentity");
1070 ssid->ca_cert_path = connman_network_get_string(network,
1072 ssid->client_cert_path = connman_network_get_string(network,
1073 "WiFi.ClientCertFile");
1074 ssid->private_key_path = connman_network_get_string(network,
1075 "WiFi.PrivateKeyFile");
1076 ssid->private_key_passphrase = connman_network_get_string(network,
1077 "WiFi.PrivateKeyPassphrase");
1078 ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
1080 ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
1081 ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
1083 if (connman_setting_get_bool("BackgroundScanning") == TRUE)
1084 ssid->bgscan = BGSCAN_DEFAULT;
1087 static int network_connect(struct connman_network *network)
1089 struct connman_device *device = connman_network_get_device(network);
1090 struct wifi_data *wifi;
1091 GSupplicantInterface *interface;
1092 GSupplicantSSID *ssid;
1094 DBG("network %p", network);
1099 wifi = connman_device_get_data(device);
1103 ssid = g_try_malloc0(sizeof(GSupplicantSSID));
1107 interface = wifi->interface;
1109 ssid_init(ssid, network);
1111 if (wifi->disconnecting == TRUE)
1112 wifi->pending_network = network;
1114 wifi->network = network;
1117 return g_supplicant_interface_connect(interface, ssid,
1118 connect_callback, network);
1121 return -EINPROGRESS;
1124 static void disconnect_callback(int result, GSupplicantInterface *interface,
1127 struct wifi_data *wifi = user_data;
1129 if (wifi->network != NULL) {
1131 * if result < 0 supplican return an error because
1132 * the network is not current.
1133 * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
1134 * failed, call connman_network_set_connected to report
1135 * disconnect is completed.
1138 connman_network_set_connected(wifi->network, FALSE);
1141 wifi->network = NULL;
1143 wifi->disconnecting = FALSE;
1145 if (wifi->pending_network != NULL) {
1146 network_connect(wifi->pending_network);
1147 wifi->pending_network = NULL;
1150 start_autoscan(wifi->device);
1153 static int network_disconnect(struct connman_network *network)
1155 struct connman_device *device = connman_network_get_device(network);
1156 struct wifi_data *wifi;
1159 DBG("network %p", network);
1161 wifi = connman_device_get_data(device);
1162 if (wifi == NULL || wifi->interface == NULL)
1165 connman_network_set_associating(network, FALSE);
1167 if (wifi->disconnecting == TRUE)
1170 wifi->disconnecting = TRUE;
1172 err = g_supplicant_interface_disconnect(wifi->interface,
1173 disconnect_callback, wifi);
1175 wifi->disconnecting = FALSE;
1180 static struct connman_network_driver network_driver = {
1182 .type = CONNMAN_NETWORK_TYPE_WIFI,
1183 .priority = CONNMAN_NETWORK_PRIORITY_LOW,
1184 .probe = network_probe,
1185 .remove = network_remove,
1186 .connect = network_connect,
1187 .disconnect = network_disconnect,
1190 static void interface_added(GSupplicantInterface *interface)
1192 const char *ifname = g_supplicant_interface_get_ifname(interface);
1193 const char *driver = g_supplicant_interface_get_driver(interface);
1194 struct wifi_data *wifi;
1196 wifi = g_supplicant_interface_get_data(interface);
1199 * We can get here with a NULL wifi pointer when
1200 * the interface added signal is sent before the
1201 * interface creation callback is called.
1206 DBG("ifname %s driver %s wifi %p tethering %d",
1207 ifname, driver, wifi, wifi->tethering);
1209 if (wifi->device == NULL) {
1210 connman_error("WiFi device not set");
1214 connman_device_set_powered(wifi->device, TRUE);
1216 if (wifi->tethering == TRUE)
1220 static connman_bool_t is_idle(struct wifi_data *wifi)
1222 DBG("state %d", wifi->state);
1224 switch (wifi->state) {
1225 case G_SUPPLICANT_STATE_UNKNOWN:
1226 case G_SUPPLICANT_STATE_DISCONNECTED:
1227 case G_SUPPLICANT_STATE_INACTIVE:
1228 case G_SUPPLICANT_STATE_SCANNING:
1231 case G_SUPPLICANT_STATE_AUTHENTICATING:
1232 case G_SUPPLICANT_STATE_ASSOCIATING:
1233 case G_SUPPLICANT_STATE_ASSOCIATED:
1234 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1235 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1236 case G_SUPPLICANT_STATE_COMPLETED:
1243 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
1244 struct wifi_data *wifi)
1246 /* First, let's check if WPS processing did not went wrong */
1247 if (g_supplicant_interface_get_wps_state(interface) ==
1248 G_SUPPLICANT_WPS_STATE_FAIL)
1251 /* Unlike normal connection, being associated while processing wps
1252 * actually means that we are idling. */
1253 switch (wifi->state) {
1254 case G_SUPPLICANT_STATE_UNKNOWN:
1255 case G_SUPPLICANT_STATE_DISCONNECTED:
1256 case G_SUPPLICANT_STATE_INACTIVE:
1257 case G_SUPPLICANT_STATE_SCANNING:
1258 case G_SUPPLICANT_STATE_ASSOCIATED:
1260 case G_SUPPLICANT_STATE_AUTHENTICATING:
1261 case G_SUPPLICANT_STATE_ASSOCIATING:
1262 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1263 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1264 case G_SUPPLICANT_STATE_COMPLETED:
1271 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
1272 struct connman_network *network,
1273 struct connman_device *device,
1274 struct wifi_data *wifi)
1278 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1280 const unsigned char *ssid, *wps_ssid;
1281 unsigned int ssid_len, wps_ssid_len;
1282 const char *wps_key;
1284 /* Checking if we got associated with requested
1286 ssid = connman_network_get_blob(network, "WiFi.SSID",
1289 wps_ssid = g_supplicant_interface_get_wps_ssid(
1290 interface, &wps_ssid_len);
1292 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
1293 memcmp(ssid, wps_ssid, ssid_len) != 0) {
1294 connman_network_set_associating(network, FALSE);
1295 g_supplicant_interface_disconnect(wifi->interface,
1296 disconnect_callback, wifi);
1300 wps_key = g_supplicant_interface_get_wps_key(interface);
1301 connman_network_set_string(network, "WiFi.Passphrase",
1304 connman_network_set_string(network, "WiFi.PinWPS", NULL);
1310 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
1311 struct connman_network *network,
1312 struct wifi_data *wifi)
1314 if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
1319 if (wifi->retries < MAXIMUM_RETRIES)
1322 connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
1327 static void interface_state(GSupplicantInterface *interface)
1329 struct connman_network *network;
1330 struct connman_device *device;
1331 struct wifi_data *wifi;
1332 GSupplicantState state = g_supplicant_interface_get_state(interface);
1335 wifi = g_supplicant_interface_get_data(interface);
1337 DBG("wifi %p interface state %d", wifi, state);
1342 network = wifi->network;
1343 device = wifi->device;
1345 if (device == NULL || network == NULL)
1349 case G_SUPPLICANT_STATE_SCANNING:
1352 case G_SUPPLICANT_STATE_AUTHENTICATING:
1353 case G_SUPPLICANT_STATE_ASSOCIATING:
1354 stop_autoscan(device);
1356 if (wifi->connected == FALSE)
1357 connman_network_set_associating(network, TRUE);
1361 case G_SUPPLICANT_STATE_COMPLETED:
1362 /* though it should be already stopped: */
1363 stop_autoscan(device);
1365 if (handle_wps_completion(interface, network, device, wifi) ==
1369 connman_network_set_connected(network, TRUE);
1372 case G_SUPPLICANT_STATE_DISCONNECTED:
1374 * If we're in one of the idle modes, we have
1375 * not started association yet and thus setting
1376 * those ones to FALSE could cancel an association
1379 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1381 if (is_idle_wps(interface, wifi) == TRUE)
1387 /* If previous state was 4way-handshake, then
1388 * it's either: psk was incorrect and thus we retry
1389 * or if we reach the maximum retries we declare the
1391 if (handle_4way_handshake_failure(interface,
1392 network, wifi) == TRUE)
1395 /* We disable the selected network, if not then
1396 * wpa_supplicant will loop retrying */
1397 if (g_supplicant_interface_enable_selected_network(interface,
1399 DBG("Could not disables selected network");
1401 connman_network_set_connected(network, FALSE);
1402 connman_network_set_associating(network, FALSE);
1403 wifi->disconnecting = FALSE;
1405 start_autoscan(device);
1409 case G_SUPPLICANT_STATE_INACTIVE:
1410 connman_network_set_associating(network, FALSE);
1411 start_autoscan(device);
1415 case G_SUPPLICANT_STATE_UNKNOWN:
1416 case G_SUPPLICANT_STATE_ASSOCIATED:
1417 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1418 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1422 wifi->state = state;
1424 /* Saving wpa_s state policy:
1425 * If connected and if the state changes are roaming related:
1426 * --> We stay connected
1428 * --> We are connected
1430 * --> We are not connected
1433 case G_SUPPLICANT_STATE_AUTHENTICATING:
1434 case G_SUPPLICANT_STATE_ASSOCIATING:
1435 case G_SUPPLICANT_STATE_ASSOCIATED:
1436 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1437 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1438 if (wifi->connected == TRUE)
1439 connman_warn("Probably roaming right now!"
1440 " Staying connected...");
1442 wifi->connected = FALSE;
1444 case G_SUPPLICANT_STATE_COMPLETED:
1445 wifi->connected = TRUE;
1448 wifi->connected = FALSE;
1455 static void interface_removed(GSupplicantInterface *interface)
1457 const char *ifname = g_supplicant_interface_get_ifname(interface);
1458 struct wifi_data *wifi;
1460 DBG("ifname %s", ifname);
1462 wifi = g_supplicant_interface_get_data(interface);
1464 if (wifi != NULL && wifi->tethering == TRUE)
1467 if (wifi == NULL || wifi->device == NULL) {
1468 connman_error("Wrong wifi pointer");
1472 wifi->interface = NULL;
1473 connman_device_set_powered(wifi->device, FALSE);
1476 static void scan_started(GSupplicantInterface *interface)
1481 static void scan_finished(GSupplicantInterface *interface)
1486 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1488 unsigned char strength;
1490 strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1497 static void network_added(GSupplicantNetwork *supplicant_network)
1499 struct connman_network *network;
1500 GSupplicantInterface *interface;
1501 struct wifi_data *wifi;
1502 const char *name, *identifier, *security, *group, *mode;
1503 const unsigned char *ssid;
1504 unsigned int ssid_len;
1506 connman_bool_t wps_pbc;
1507 connman_bool_t wps_ready;
1508 connman_bool_t wps_advertizing;
1512 interface = g_supplicant_network_get_interface(supplicant_network);
1513 wifi = g_supplicant_interface_get_data(interface);
1514 name = g_supplicant_network_get_name(supplicant_network);
1515 identifier = g_supplicant_network_get_identifier(supplicant_network);
1516 security = g_supplicant_network_get_security(supplicant_network);
1517 group = g_supplicant_network_get_identifier(supplicant_network);
1518 wps = g_supplicant_network_get_wps(supplicant_network);
1519 wps_pbc = g_supplicant_network_is_wps_pbc(supplicant_network);
1520 wps_ready = g_supplicant_network_is_wps_active(supplicant_network);
1521 wps_advertizing = g_supplicant_network_is_wps_advertizing(
1522 supplicant_network);
1523 mode = g_supplicant_network_get_mode(supplicant_network);
1528 ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1530 network = connman_device_get_network(wifi->device, identifier);
1532 if (network == NULL) {
1533 network = connman_network_create(identifier,
1534 CONNMAN_NETWORK_TYPE_WIFI);
1535 if (network == NULL)
1538 connman_network_set_index(network, wifi->index);
1540 if (connman_device_add_network(wifi->device, network) < 0) {
1541 connman_network_unref(network);
1545 wifi->networks = g_slist_append(wifi->networks, network);
1548 if (name != NULL && name[0] != '\0')
1549 connman_network_set_name(network, name);
1551 connman_network_set_blob(network, "WiFi.SSID",
1553 connman_network_set_string(network, "WiFi.Security", security);
1554 connman_network_set_strength(network,
1555 calculate_strength(supplicant_network));
1556 connman_network_set_bool(network, "WiFi.WPS", wps);
1559 /* Is AP advertizing for WPS association?
1560 * If so, we decide to use WPS by default */
1561 if (wps_ready == TRUE && wps_pbc == TRUE &&
1562 wps_advertizing == TRUE)
1563 connman_network_set_bool(network, "WiFi.UseWPS", TRUE);
1566 connman_network_set_frequency(network,
1567 g_supplicant_network_get_frequency(supplicant_network));
1569 connman_network_set_available(network, TRUE);
1570 connman_network_set_string(network, "WiFi.Mode", mode);
1573 connman_network_set_group(network, group);
1575 if (wifi->hidden != NULL && ssid != NULL) {
1576 if (wifi->hidden->ssid_len == ssid_len &&
1577 memcmp(wifi->hidden->ssid, ssid,
1579 connman_network_connect_hidden(network,
1580 wifi->hidden->identity,
1581 wifi->hidden->passphrase,
1582 wifi->hidden->user_data);
1583 wifi->hidden->user_data = NULL;
1584 hidden_free(wifi->hidden);
1585 wifi->hidden = NULL;
1590 static void network_removed(GSupplicantNetwork *network)
1592 GSupplicantInterface *interface;
1593 struct wifi_data *wifi;
1594 const char *name, *identifier;
1595 struct connman_network *connman_network;
1597 interface = g_supplicant_network_get_interface(network);
1598 wifi = g_supplicant_interface_get_data(interface);
1599 identifier = g_supplicant_network_get_identifier(network);
1600 name = g_supplicant_network_get_name(network);
1602 DBG("name %s", name);
1607 connman_network = connman_device_get_network(wifi->device, identifier);
1608 if (connman_network == NULL)
1611 wifi->networks = g_slist_remove(wifi->networks, connman_network);
1613 connman_device_remove_network(wifi->device, connman_network);
1614 connman_network_unref(connman_network);
1617 static void network_changed(GSupplicantNetwork *network, const char *property)
1619 GSupplicantInterface *interface;
1620 struct wifi_data *wifi;
1621 const char *name, *identifier;
1622 struct connman_network *connman_network;
1624 interface = g_supplicant_network_get_interface(network);
1625 wifi = g_supplicant_interface_get_data(interface);
1626 identifier = g_supplicant_network_get_identifier(network);
1627 name = g_supplicant_network_get_name(network);
1629 DBG("name %s", name);
1634 connman_network = connman_device_get_network(wifi->device, identifier);
1635 if (connman_network == NULL)
1638 if (g_str_equal(property, "Signal") == TRUE) {
1639 connman_network_set_strength(connman_network,
1640 calculate_strength(network));
1641 connman_network_update(connman_network);
1645 static void debug(const char *str)
1647 if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1648 connman_debug("%s", str);
1651 static const GSupplicantCallbacks callbacks = {
1652 .system_ready = system_ready,
1653 .system_killed = system_killed,
1654 .interface_added = interface_added,
1655 .interface_state = interface_state,
1656 .interface_removed = interface_removed,
1657 .scan_started = scan_started,
1658 .scan_finished = scan_finished,
1659 .network_added = network_added,
1660 .network_removed = network_removed,
1661 .network_changed = network_changed,
1666 static int tech_probe(struct connman_technology *technology)
1668 wifi_technology = technology;
1673 static void tech_remove(struct connman_technology *technology)
1675 wifi_technology = NULL;
1678 struct wifi_tethering_info {
1679 struct wifi_data *wifi;
1680 struct connman_technology *technology;
1682 GSupplicantSSID *ssid;
1685 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1687 GSupplicantSSID *ap;
1689 ap = g_try_malloc0(sizeof(GSupplicantSSID));
1693 ap->mode = G_SUPPLICANT_MODE_MASTER;
1695 ap->ssid_len = strlen(ssid);
1699 if (passphrase == NULL || strlen(passphrase) == 0) {
1700 ap->security = G_SUPPLICANT_SECURITY_NONE;
1701 ap->passphrase = NULL;
1703 ap->security = G_SUPPLICANT_SECURITY_PSK;
1704 ap->protocol = G_SUPPLICANT_PROTO_RSN;
1705 ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1706 ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1707 ap->passphrase = passphrase;
1713 static void ap_start_callback(int result, GSupplicantInterface *interface,
1716 struct wifi_tethering_info *info = user_data;
1718 DBG("result %d index %d bridge %s",
1719 result, info->wifi->index, info->wifi->bridge);
1722 connman_inet_remove_from_bridge(info->wifi->index,
1723 info->wifi->bridge);
1724 connman_technology_tethering_notify(info->technology, FALSE);
1727 g_free(info->ifname);
1731 static void ap_create_callback(int result,
1732 GSupplicantInterface *interface,
1735 struct wifi_tethering_info *info = user_data;
1737 DBG("result %d ifname %s", result,
1738 g_supplicant_interface_get_ifname(interface));
1741 connman_inet_remove_from_bridge(info->wifi->index,
1742 info->wifi->bridge);
1743 connman_technology_tethering_notify(info->technology, FALSE);
1745 g_free(info->ifname);
1750 info->wifi->interface = interface;
1751 g_supplicant_interface_set_data(interface, info->wifi);
1753 if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1754 connman_error("Failed to set interface ap_scan property");
1756 g_supplicant_interface_connect(interface, info->ssid,
1757 ap_start_callback, info);
1760 static void sta_remove_callback(int result,
1761 GSupplicantInterface *interface,
1764 struct wifi_tethering_info *info = user_data;
1765 const char *driver = connman_option_get_string("wifi");
1767 DBG("ifname %s result %d ", info->ifname, result);
1770 info->wifi->tethering = TRUE;
1772 g_free(info->ifname);
1777 info->wifi->interface = NULL;
1779 connman_technology_tethering_notify(info->technology, TRUE);
1781 g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1786 static int tech_set_tethering(struct connman_technology *technology,
1787 const char *identifier, const char *passphrase,
1788 const char *bridge, connman_bool_t enabled)
1791 GSupplicantInterface *interface;
1792 struct wifi_data *wifi;
1793 struct wifi_tethering_info *info;
1800 if (enabled == FALSE) {
1801 for (list = iface_list; list; list = list->next) {
1804 if (wifi->tethering == TRUE) {
1805 wifi->tethering = FALSE;
1807 connman_inet_remove_from_bridge(wifi->index,
1809 wifi->bridged = FALSE;
1813 connman_technology_tethering_notify(technology, FALSE);
1818 for (list = iface_list; list; list = list->next) {
1821 interface = wifi->interface;
1823 if (interface == NULL)
1826 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1828 mode = g_supplicant_interface_get_mode(interface);
1829 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1830 DBG("%s does not support AP mode", ifname);
1834 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1839 info->technology = technology;
1840 info->wifi->bridge = bridge;
1841 info->ssid = ssid_ap_init(identifier, passphrase);
1842 if (info->ssid == NULL) {
1846 info->ifname = g_strdup(ifname);
1847 if (info->ifname == NULL) {
1852 info->wifi->tethering = TRUE;
1854 err = g_supplicant_interface_remove(interface,
1855 sta_remove_callback,
1864 static void regdom_callback(void *user_data)
1866 char *alpha2 = user_data;
1870 if (wifi_technology == NULL)
1873 connman_technology_regdom_notify(wifi_technology, alpha2);
1876 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1878 return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
1881 static struct connman_technology_driver tech_driver = {
1883 .type = CONNMAN_SERVICE_TYPE_WIFI,
1884 .probe = tech_probe,
1885 .remove = tech_remove,
1886 .set_tethering = tech_set_tethering,
1887 .set_regdom = tech_set_regdom,
1890 static int wifi_init(void)
1894 err = connman_network_driver_register(&network_driver);
1898 err = g_supplicant_register(&callbacks);
1900 connman_network_driver_unregister(&network_driver);
1904 err = connman_technology_driver_register(&tech_driver);
1906 g_supplicant_unregister(&callbacks);
1907 connman_network_driver_unregister(&network_driver);
1914 static void wifi_exit(void)
1918 connman_technology_driver_unregister(&tech_driver);
1920 g_supplicant_unregister(&callbacks);
1922 connman_network_driver_unregister(&network_driver);
1925 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1926 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)