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 start_autoscan(struct connman_device *device);
113 static void handle_tethering(struct wifi_data *wifi)
115 if (wifi->tethering == FALSE)
118 if (wifi->bridge == NULL)
121 if (wifi->bridged == TRUE)
124 DBG("index %d bridge %s", wifi->index, wifi->bridge);
126 if (connman_inet_add_to_bridge(wifi->index, wifi->bridge) < 0)
129 wifi->bridged = TRUE;
132 static void wifi_newlink(unsigned flags, unsigned change, void *user_data)
134 struct connman_device *device = user_data;
135 struct wifi_data *wifi = connman_device_get_data(device);
137 DBG("index %d flags %d change %d", wifi->index, flags, change);
142 if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
146 DBG("interface down");
149 if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
150 if (flags & IFF_LOWER_UP) {
153 handle_tethering(wifi);
161 static int wifi_probe(struct connman_device *device)
163 struct wifi_data *wifi;
165 DBG("device %p", device);
167 wifi = g_try_new0(struct wifi_data, 1);
171 wifi->connected = FALSE;
172 wifi->disconnecting = FALSE;
173 wifi->tethering = FALSE;
174 wifi->bridged = FALSE;
176 wifi->state = G_SUPPLICANT_STATE_INACTIVE;
178 connman_device_set_data(device, wifi);
179 wifi->device = connman_device_ref(device);
181 wifi->index = connman_device_get_index(device);
184 wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
185 wifi_newlink, device);
187 iface_list = g_list_append(iface_list, wifi);
192 static void remove_networks(struct connman_device *device,
193 struct wifi_data *wifi)
197 for (list = wifi->networks; list != NULL; list = list->next) {
198 struct connman_network *network = list->data;
200 connman_device_remove_network(device, network);
201 connman_network_unref(network);
204 g_slist_free(wifi->networks);
205 wifi->networks = NULL;
208 static void reset_autoscan(struct connman_device *device)
210 struct wifi_data *wifi = connman_device_get_data(device);
211 struct autoscan_params *autoscan;
215 if (wifi == NULL || wifi->autoscan == NULL)
218 autoscan = wifi->autoscan;
220 if (autoscan->timeout == 0 && autoscan->interval == 0)
223 g_source_remove(autoscan->timeout);
225 autoscan->timeout = 0;
226 autoscan->interval = 0;
228 connman_device_unref(device);
231 static void stop_autoscan(struct connman_device *device)
233 reset_autoscan(device);
235 connman_device_set_scanning(device, FALSE);
238 static void wifi_remove(struct connman_device *device)
240 struct wifi_data *wifi = connman_device_get_data(device);
242 DBG("device %p wifi %p", device, wifi);
247 iface_list = g_list_remove(iface_list, wifi);
249 remove_networks(device, wifi);
251 connman_device_set_powered(device, FALSE);
252 connman_device_set_data(device, NULL);
253 connman_device_unref(wifi->device);
254 connman_rtnl_remove_watch(wifi->watch);
256 g_supplicant_interface_set_data(wifi->interface, NULL);
258 g_free(wifi->autoscan);
259 g_free(wifi->identifier);
263 static int add_scan_param(gchar *hex_ssid, int freq,
264 GSupplicantScanParams *scan_data,
265 int driver_max_scan_ssids)
268 struct scan_ssid *scan_ssid;
270 if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
272 unsigned int j = 0, hex;
273 size_t hex_ssid_len = strlen(hex_ssid);
275 ssid = g_try_malloc0(hex_ssid_len / 2);
279 for (i = 0; i < hex_ssid_len; i += 2) {
280 sscanf(hex_ssid + i, "%02x", &hex);
284 scan_ssid = g_try_new(struct scan_ssid, 1);
285 if (scan_ssid == NULL) {
290 memcpy(scan_ssid->ssid, ssid, j);
291 scan_ssid->ssid_len = j;
292 scan_data->ssids = g_slist_prepend(scan_data->ssids,
295 scan_data->num_ssids++;
301 scan_data->ssids = g_slist_reverse(scan_data->ssids);
303 if (scan_data->freqs == NULL) {
304 scan_data->freqs = g_try_malloc0(sizeof(uint16_t) *
305 scan_data->num_ssids);
306 if (scan_data->freqs == NULL) {
307 g_slist_free_full(scan_data->ssids, g_free);
311 scan_data->freqs = g_try_realloc(scan_data->freqs,
312 sizeof(uint16_t) * scan_data->num_ssids);
313 if (scan_data->freqs == NULL) {
314 g_slist_free_full(scan_data->ssids, g_free);
317 scan_data->freqs[scan_data->num_ssids - 1] = 0;
320 /* Don't add duplicate entries */
321 for (i = 0; i < scan_data->num_ssids; i++) {
322 if (scan_data->freqs[i] == 0) {
323 scan_data->freqs[i] = freq;
325 } else if (scan_data->freqs[i] == freq)
332 static int get_hidden_connections(int max_ssids,
333 GSupplicantScanParams *scan_data)
341 int num_ssids = 0, add_param_failed = 0;
343 services = connman_storage_get_services();
344 for (i = 0; services && services[i]; i++) {
345 if (strncmp(services[i], "wifi_", 5) != 0)
348 keyfile = connman_storage_load_service(services[i]);
350 value = g_key_file_get_boolean(keyfile,
351 services[i], "Hidden", NULL);
352 if (value == FALSE) {
353 g_key_file_free(keyfile);
357 value = g_key_file_get_boolean(keyfile,
358 services[i], "Favorite", NULL);
359 if (value == FALSE) {
360 g_key_file_free(keyfile);
364 value = g_key_file_get_boolean(keyfile,
365 services[i], "AutoConnect", NULL);
366 if (value == FALSE) {
367 g_key_file_free(keyfile);
371 ssid = g_key_file_get_string(keyfile,
372 services[i], "SSID", NULL);
374 freq = g_key_file_get_integer(keyfile, services[i],
377 if (add_scan_param(ssid, freq, scan_data, max_ssids) < 0) {
378 str = g_key_file_get_string(keyfile,
379 services[i], "Name", NULL);
380 DBG("Cannot scan %s (%s)", ssid, str);
387 g_key_file_free(keyfile);
390 if (add_param_failed > 0)
391 connman_warn("Unable to scan %d out of %d SSIDs (max is %d)",
392 add_param_failed, num_ssids, max_ssids);
394 g_strfreev(services);
396 return num_ssids > max_ssids ? max_ssids : num_ssids;
399 static int throw_wifi_scan(struct connman_device *device,
400 GSupplicantInterfaceCallback callback)
402 struct wifi_data *wifi = connman_device_get_data(device);
405 DBG("device %p %p", device, wifi->interface);
407 if (wifi->tethering == TRUE)
410 if (connman_device_get_scanning(device) == TRUE)
413 connman_device_ref(device);
415 ret = g_supplicant_interface_scan(wifi->interface, NULL,
418 connman_device_set_scanning(device, TRUE);
420 connman_device_unref(device);
425 static void hidden_free(struct hidden_params *hidden)
430 g_free(hidden->identity);
431 g_free(hidden->passphrase);
435 static void scan_callback(int result, GSupplicantInterface *interface,
438 struct connman_device *device = user_data;
439 struct wifi_data *wifi = connman_device_get_data(device);
441 DBG("result %d", result);
443 if (wifi != NULL && wifi->hidden != NULL) {
444 connman_network_clear_hidden(wifi->hidden->user_data);
445 hidden_free(wifi->hidden);
450 connman_device_reset_scanning(device);
452 connman_device_set_scanning(device, FALSE);
453 start_autoscan(device);
454 connman_device_unref(device);
457 static void scan_callback_hidden(int result,
458 GSupplicantInterface *interface, void *user_data)
460 struct connman_device *device = user_data;
461 struct wifi_data *wifi = connman_device_get_data(device);
462 int driver_max_ssids;
464 DBG("result %d", result);
467 * Scan hidden networks so that we can autoconnect to them.
469 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
471 DBG("max ssids %d", driver_max_ssids);
473 if (driver_max_ssids > 0) {
474 GSupplicantScanParams *scan_params;
477 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
478 if (scan_params == NULL)
481 if (get_hidden_connections(driver_max_ssids,
483 ret = g_supplicant_interface_scan(wifi->interface,
491 g_supplicant_free_scan_params(scan_params);
495 connman_device_set_scanning(device, FALSE);
496 connman_device_unref(device);
499 static gboolean autoscan_timeout(gpointer data)
501 struct connman_device *device = data;
502 struct wifi_data *wifi = connman_device_get_data(device);
503 struct autoscan_params *autoscan;
506 autoscan = wifi->autoscan;
508 if (autoscan->interval <= 0) {
509 interval = autoscan->base;
512 interval = autoscan->interval * autoscan->base;
514 if (autoscan->interval >= autoscan->limit)
515 interval = autoscan->limit;
517 throw_wifi_scan(wifi->device, scan_callback_hidden);
520 DBG("interval %d", interval);
522 autoscan->interval = interval;
524 autoscan->timeout = g_timeout_add_seconds(interval,
525 autoscan_timeout, device);
530 static void start_autoscan(struct connman_device *device)
532 struct wifi_data *wifi = connman_device_get_data(device);
533 struct autoscan_params *autoscan;
540 autoscan = wifi->autoscan;
541 if (autoscan == NULL)
544 if (autoscan->timeout > 0 || autoscan->interval > 0)
547 connman_device_ref(device);
549 autoscan_timeout(device);
552 static struct autoscan_params *parse_autoscan_params(const char *params)
554 struct autoscan_params *autoscan;
559 DBG("Emulating autoscan");
561 list_params = g_strsplit(params, ":", 0);
562 if (list_params == 0)
565 if (g_strv_length(list_params) < 3) {
566 g_strfreev(list_params);
570 base = atoi(list_params[1]);
571 limit = atoi(list_params[2]);
573 g_strfreev(list_params);
575 autoscan = g_try_malloc0(sizeof(struct autoscan_params));
576 if (autoscan == NULL) {
577 DBG("Could not allocate memory for autoscan");
581 DBG("base %d - limit %d", base, limit);
582 autoscan->base = base;
583 autoscan->limit = limit;
588 static void setup_autoscan(struct wifi_data *wifi)
590 if (wifi->autoscan == NULL)
591 wifi->autoscan = parse_autoscan_params(AUTOSCAN_DEFAULT);
593 start_autoscan(wifi->device);
596 static void interface_create_callback(int result,
597 GSupplicantInterface *interface,
600 struct wifi_data *wifi = user_data;
602 DBG("result %d ifname %s, wifi %p", result,
603 g_supplicant_interface_get_ifname(interface),
606 if (result < 0 || wifi == NULL)
609 wifi->interface = interface;
610 g_supplicant_interface_set_data(interface, wifi);
612 if (g_supplicant_interface_get_ready(interface) == FALSE)
615 DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
617 if (wifi->device == NULL) {
618 connman_error("WiFi device not set");
622 connman_device_set_powered(wifi->device, TRUE);
624 if (connman_setting_get_bool("BackgroundScanning") == FALSE)
627 /* Setting up automatic scanning */
628 setup_autoscan(wifi);
631 static int wifi_enable(struct connman_device *device)
633 struct wifi_data *wifi = connman_device_get_data(device);
634 const char *interface = connman_device_get_string(device, "Interface");
635 const char *driver = connman_option_get_string("wifi");
638 DBG("device %p %p", device, wifi);
640 ret = g_supplicant_interface_create(interface, driver, NULL,
641 interface_create_callback,
649 static int wifi_disable(struct connman_device *device)
651 struct wifi_data *wifi = connman_device_get_data(device);
654 DBG("device %p", device);
656 wifi->connected = FALSE;
657 wifi->disconnecting = FALSE;
659 if (wifi->pending_network != NULL)
660 wifi->pending_network = NULL;
662 stop_autoscan(device);
664 /* In case of a user scan, device is still referenced */
665 if (connman_device_get_scanning(device) == TRUE) {
666 connman_device_set_scanning(device, FALSE);
667 connman_device_unref(wifi->device);
670 remove_networks(device, wifi);
672 ret = g_supplicant_interface_remove(wifi->interface, NULL, NULL);
679 struct last_connected {
685 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
687 GTimeVal *aval = (GTimeVal *)a;
688 GTimeVal *bval = (GTimeVal *)b;
690 /* Note that the sort order is descending */
691 if (aval->tv_sec < bval->tv_sec)
694 if (aval->tv_sec > bval->tv_sec)
700 static void free_entry(gpointer data)
702 struct last_connected *entry = data;
708 static int get_latest_connections(int max_ssids,
709 GSupplicantScanParams *scan_data)
712 GSequence *latest_list;
713 struct last_connected *entry;
722 latest_list = g_sequence_new(free_entry);
723 if (latest_list == NULL)
726 services = connman_storage_get_services();
727 for (i = 0; services && services[i]; i++) {
728 if (strncmp(services[i], "wifi_", 5) != 0)
731 keyfile = connman_storage_load_service(services[i]);
733 str = g_key_file_get_string(keyfile,
734 services[i], "Favorite", NULL);
735 if (str == NULL || g_strcmp0(str, "true")) {
738 g_key_file_free(keyfile);
743 str = g_key_file_get_string(keyfile,
744 services[i], "AutoConnect", NULL);
745 if (str == NULL || g_strcmp0(str, "true")) {
748 g_key_file_free(keyfile);
753 str = g_key_file_get_string(keyfile,
754 services[i], "Modified", NULL);
756 g_time_val_from_iso8601(str, &modified);
760 ssid = g_key_file_get_string(keyfile,
761 services[i], "SSID", NULL);
763 freq = g_key_file_get_integer(keyfile, services[i],
766 entry = g_try_new(struct last_connected, 1);
768 g_sequence_free(latest_list);
769 g_key_file_free(keyfile);
775 entry->modified = modified;
778 g_sequence_insert_sorted(latest_list, entry,
784 g_key_file_free(keyfile);
787 g_strfreev(services);
789 num_ssids = num_ssids > max_ssids ? max_ssids : num_ssids;
791 iter = g_sequence_get_begin_iter(latest_list);
793 for (i = 0; i < num_ssids; i++) {
794 entry = g_sequence_get(iter);
796 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
797 entry->modified.tv_sec);
799 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
801 iter = g_sequence_iter_next(iter);
804 g_sequence_free(latest_list);
808 static int wifi_scan(struct connman_device *device)
810 reset_autoscan(device);
812 return throw_wifi_scan(device, scan_callback_hidden);
815 static int wifi_scan_fast(struct connman_device *device)
817 struct wifi_data *wifi = connman_device_get_data(device);
818 GSupplicantScanParams *scan_params = NULL;
820 int driver_max_ssids = 0;
822 DBG("device %p %p", device, wifi->interface);
824 if (wifi->tethering == TRUE)
827 if (connman_device_get_scanning(device) == TRUE)
830 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
832 DBG("max ssids %d", driver_max_ssids);
833 if (driver_max_ssids == 0)
834 return wifi_scan(device);
836 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
837 if (scan_params == NULL)
840 ret = get_latest_connections(driver_max_ssids, scan_params);
842 g_supplicant_free_scan_params(scan_params);
843 return wifi_scan(device);
846 connman_device_ref(device);
847 reset_autoscan(device);
849 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
850 scan_callback, device);
852 connman_device_set_scanning(device, TRUE);
854 g_supplicant_free_scan_params(scan_params);
855 connman_device_unref(device);
862 * This func is only used when connecting to this specific AP first time.
863 * It is not used when system autoconnects to hidden AP.
865 static int wifi_scan_hidden(struct connman_device *device,
866 const char *ssid, unsigned int ssid_len,
867 const char *identity, const char* passphrase,
870 struct wifi_data *wifi = connman_device_get_data(device);
871 GSupplicantScanParams *scan_params = NULL;
872 struct scan_ssid *scan_ssid;
873 struct hidden_params *hidden;
876 DBG("hidden SSID %s", ssid);
878 if (wifi->tethering == TRUE || wifi->hidden != NULL)
881 if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
884 if (connman_device_get_scanning(device) == TRUE)
887 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
888 if (scan_params == NULL)
891 scan_ssid = g_try_new(struct scan_ssid, 1);
892 if (scan_ssid == NULL) {
897 memcpy(scan_ssid->ssid, ssid, ssid_len);
898 scan_ssid->ssid_len = ssid_len;
899 scan_params->ssids = g_slist_prepend(scan_params->ssids, scan_ssid);
901 scan_params->num_ssids = 1;
903 hidden = g_try_new0(struct hidden_params, 1);
904 if (hidden == NULL) {
908 memcpy(hidden->ssid, ssid, ssid_len);
909 hidden->ssid_len = ssid_len;
910 hidden->identity = g_strdup(identity);
911 hidden->passphrase = g_strdup(passphrase);
912 hidden->user_data = user_data;
913 wifi->hidden = hidden;
915 connman_device_ref(device);
917 reset_autoscan(device);
919 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
920 scan_callback, device);
922 connman_device_set_scanning(device, TRUE);
924 connman_device_unref(device);
925 g_supplicant_free_scan_params(scan_params);
926 hidden_free(wifi->hidden);
933 static struct connman_device_driver wifi_ng_driver = {
935 .type = CONNMAN_DEVICE_TYPE_WIFI,
936 .priority = CONNMAN_DEVICE_PRIORITY_LOW,
938 .remove = wifi_remove,
939 .enable = wifi_enable,
940 .disable = wifi_disable,
942 .scan_fast = wifi_scan_fast,
943 .scan_hidden = wifi_scan_hidden,
946 static void system_ready(void)
950 if (connman_device_driver_register(&wifi_ng_driver) < 0)
951 connman_error("Failed to register WiFi driver");
954 static void system_killed(void)
958 connman_device_driver_unregister(&wifi_ng_driver);
961 static int network_probe(struct connman_network *network)
963 DBG("network %p", network);
968 static void network_remove(struct connman_network *network)
970 struct connman_device *device = connman_network_get_device(network);
971 struct wifi_data *wifi;
973 DBG("network %p", network);
975 wifi = connman_device_get_data(device);
979 if (wifi->network != network)
982 wifi->network = NULL;
985 static void connect_callback(int result, GSupplicantInterface *interface,
988 struct connman_network *network = user_data;
990 DBG("network %p result %d", network, result);
992 if (result == -ENOKEY) {
993 connman_network_set_error(network,
994 CONNMAN_NETWORK_ERROR_INVALID_KEY);
995 } else if (result < 0) {
996 connman_network_set_error(network,
997 CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
1001 static GSupplicantSecurity network_security(const char *security)
1003 if (g_str_equal(security, "none") == TRUE)
1004 return G_SUPPLICANT_SECURITY_NONE;
1005 else if (g_str_equal(security, "wep") == TRUE)
1006 return G_SUPPLICANT_SECURITY_WEP;
1007 else if (g_str_equal(security, "psk") == TRUE)
1008 return G_SUPPLICANT_SECURITY_PSK;
1009 else if (g_str_equal(security, "wpa") == TRUE)
1010 return G_SUPPLICANT_SECURITY_PSK;
1011 else if (g_str_equal(security, "rsn") == TRUE)
1012 return G_SUPPLICANT_SECURITY_PSK;
1013 else if (g_str_equal(security, "ieee8021x") == TRUE)
1014 return G_SUPPLICANT_SECURITY_IEEE8021X;
1016 return G_SUPPLICANT_SECURITY_UNKNOWN;
1019 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
1021 const char *security, *passphrase, *agent_passphrase;
1023 memset(ssid, 0, sizeof(*ssid));
1024 ssid->mode = G_SUPPLICANT_MODE_INFRA;
1025 ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
1027 ssid->scan_ssid = 1;
1028 security = connman_network_get_string(network, "WiFi.Security");
1029 ssid->security = network_security(security);
1030 passphrase = connman_network_get_string(network,
1032 if (passphrase == NULL || strlen(passphrase) == 0) {
1034 /* Use agent provided passphrase as a fallback */
1035 agent_passphrase = connman_network_get_string(network,
1036 "WiFi.AgentPassphrase");
1038 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
1039 ssid->passphrase = NULL;
1041 ssid->passphrase = agent_passphrase;
1043 ssid->passphrase = passphrase;
1045 ssid->eap = connman_network_get_string(network, "WiFi.EAP");
1048 * If our private key password is unset,
1049 * we use the supplied passphrase. That is needed
1050 * for PEAP where 2 passphrases (identity and client
1051 * cert may have to be provided.
1053 if (connman_network_get_string(network,
1054 "WiFi.PrivateKeyPassphrase") == NULL)
1055 connman_network_set_string(network,
1056 "WiFi.PrivateKeyPassphrase",
1058 /* We must have an identity for both PEAP and TLS */
1059 ssid->identity = connman_network_get_string(network, "WiFi.Identity");
1061 /* Use agent provided identity as a fallback */
1062 if (ssid->identity == NULL || strlen(ssid->identity) == 0)
1063 ssid->identity = connman_network_get_string(network,
1064 "WiFi.AgentIdentity");
1066 ssid->ca_cert_path = connman_network_get_string(network,
1068 ssid->client_cert_path = connman_network_get_string(network,
1069 "WiFi.ClientCertFile");
1070 ssid->private_key_path = connman_network_get_string(network,
1071 "WiFi.PrivateKeyFile");
1072 ssid->private_key_passphrase = connman_network_get_string(network,
1073 "WiFi.PrivateKeyPassphrase");
1074 ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
1076 ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
1077 ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
1079 if (connman_setting_get_bool("BackgroundScanning") == TRUE)
1080 ssid->bgscan = BGSCAN_DEFAULT;
1083 static int network_connect(struct connman_network *network)
1085 struct connman_device *device = connman_network_get_device(network);
1086 struct wifi_data *wifi;
1087 GSupplicantInterface *interface;
1088 GSupplicantSSID *ssid;
1090 DBG("network %p", network);
1095 wifi = connman_device_get_data(device);
1099 ssid = g_try_malloc0(sizeof(GSupplicantSSID));
1103 interface = wifi->interface;
1105 ssid_init(ssid, network);
1107 if (wifi->disconnecting == TRUE)
1108 wifi->pending_network = network;
1110 wifi->network = network;
1113 return g_supplicant_interface_connect(interface, ssid,
1114 connect_callback, network);
1117 return -EINPROGRESS;
1120 static void disconnect_callback(int result, GSupplicantInterface *interface,
1123 struct wifi_data *wifi = user_data;
1125 if (wifi->network != NULL) {
1127 * if result < 0 supplican return an error because
1128 * the network is not current.
1129 * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
1130 * failed, call connman_network_set_connected to report
1131 * disconnect is completed.
1134 connman_network_set_connected(wifi->network, FALSE);
1137 wifi->network = NULL;
1139 wifi->disconnecting = FALSE;
1141 if (wifi->pending_network != NULL) {
1142 network_connect(wifi->pending_network);
1143 wifi->pending_network = NULL;
1146 start_autoscan(wifi->device);
1149 static int network_disconnect(struct connman_network *network)
1151 struct connman_device *device = connman_network_get_device(network);
1152 struct wifi_data *wifi;
1155 DBG("network %p", network);
1157 wifi = connman_device_get_data(device);
1158 if (wifi == NULL || wifi->interface == NULL)
1161 connman_network_set_associating(network, FALSE);
1163 if (wifi->disconnecting == TRUE)
1166 wifi->disconnecting = TRUE;
1168 err = g_supplicant_interface_disconnect(wifi->interface,
1169 disconnect_callback, wifi);
1171 wifi->disconnecting = FALSE;
1176 static struct connman_network_driver network_driver = {
1178 .type = CONNMAN_NETWORK_TYPE_WIFI,
1179 .priority = CONNMAN_NETWORK_PRIORITY_LOW,
1180 .probe = network_probe,
1181 .remove = network_remove,
1182 .connect = network_connect,
1183 .disconnect = network_disconnect,
1186 static void interface_added(GSupplicantInterface *interface)
1188 const char *ifname = g_supplicant_interface_get_ifname(interface);
1189 const char *driver = g_supplicant_interface_get_driver(interface);
1190 struct wifi_data *wifi;
1192 wifi = g_supplicant_interface_get_data(interface);
1195 * We can get here with a NULL wifi pointer when
1196 * the interface added signal is sent before the
1197 * interface creation callback is called.
1202 DBG("ifname %s driver %s wifi %p tethering %d",
1203 ifname, driver, wifi, wifi->tethering);
1205 if (wifi->device == NULL) {
1206 connman_error("WiFi device not set");
1210 connman_device_set_powered(wifi->device, TRUE);
1212 if (wifi->tethering == TRUE)
1216 static connman_bool_t is_idle(struct wifi_data *wifi)
1218 DBG("state %d", wifi->state);
1220 switch (wifi->state) {
1221 case G_SUPPLICANT_STATE_UNKNOWN:
1222 case G_SUPPLICANT_STATE_DISCONNECTED:
1223 case G_SUPPLICANT_STATE_INACTIVE:
1224 case G_SUPPLICANT_STATE_SCANNING:
1227 case G_SUPPLICANT_STATE_AUTHENTICATING:
1228 case G_SUPPLICANT_STATE_ASSOCIATING:
1229 case G_SUPPLICANT_STATE_ASSOCIATED:
1230 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1231 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1232 case G_SUPPLICANT_STATE_COMPLETED:
1239 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
1240 struct wifi_data *wifi)
1242 /* First, let's check if WPS processing did not went wrong */
1243 if (g_supplicant_interface_get_wps_state(interface) ==
1244 G_SUPPLICANT_WPS_STATE_FAIL)
1247 /* Unlike normal connection, being associated while processing wps
1248 * actually means that we are idling. */
1249 switch (wifi->state) {
1250 case G_SUPPLICANT_STATE_UNKNOWN:
1251 case G_SUPPLICANT_STATE_DISCONNECTED:
1252 case G_SUPPLICANT_STATE_INACTIVE:
1253 case G_SUPPLICANT_STATE_SCANNING:
1254 case G_SUPPLICANT_STATE_ASSOCIATED:
1256 case G_SUPPLICANT_STATE_AUTHENTICATING:
1257 case G_SUPPLICANT_STATE_ASSOCIATING:
1258 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1259 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1260 case G_SUPPLICANT_STATE_COMPLETED:
1267 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
1268 struct connman_network *network,
1269 struct connman_device *device,
1270 struct wifi_data *wifi)
1274 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1276 const unsigned char *ssid, *wps_ssid;
1277 unsigned int ssid_len, wps_ssid_len;
1278 const char *wps_key;
1280 /* Checking if we got associated with requested
1282 ssid = connman_network_get_blob(network, "WiFi.SSID",
1285 wps_ssid = g_supplicant_interface_get_wps_ssid(
1286 interface, &wps_ssid_len);
1288 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
1289 memcmp(ssid, wps_ssid, ssid_len) != 0) {
1290 connman_network_set_associating(network, FALSE);
1291 g_supplicant_interface_disconnect(wifi->interface,
1292 disconnect_callback, wifi);
1296 wps_key = g_supplicant_interface_get_wps_key(interface);
1297 connman_network_set_string(network, "WiFi.Passphrase",
1300 connman_network_set_string(network, "WiFi.PinWPS", NULL);
1306 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
1307 struct connman_network *network,
1308 struct wifi_data *wifi)
1310 if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
1315 if (wifi->retries < MAXIMUM_RETRIES)
1318 connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
1323 static void interface_state(GSupplicantInterface *interface)
1325 struct connman_network *network;
1326 struct connman_device *device;
1327 struct wifi_data *wifi;
1328 GSupplicantState state = g_supplicant_interface_get_state(interface);
1331 wifi = g_supplicant_interface_get_data(interface);
1333 DBG("wifi %p interface state %d", wifi, state);
1338 network = wifi->network;
1339 device = wifi->device;
1341 if (device == NULL || network == NULL)
1345 case G_SUPPLICANT_STATE_SCANNING:
1348 case G_SUPPLICANT_STATE_AUTHENTICATING:
1349 case G_SUPPLICANT_STATE_ASSOCIATING:
1350 stop_autoscan(device);
1352 if (wifi->connected == FALSE)
1353 connman_network_set_associating(network, TRUE);
1357 case G_SUPPLICANT_STATE_COMPLETED:
1358 /* though it should be already stopped: */
1359 stop_autoscan(device);
1361 if (handle_wps_completion(interface, network, device, wifi) ==
1365 connman_network_set_connected(network, TRUE);
1368 case G_SUPPLICANT_STATE_DISCONNECTED:
1370 * If we're in one of the idle modes, we have
1371 * not started association yet and thus setting
1372 * those ones to FALSE could cancel an association
1375 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1377 if (is_idle_wps(interface, wifi) == TRUE)
1383 /* If previous state was 4way-handshake, then
1384 * it's either: psk was incorrect and thus we retry
1385 * or if we reach the maximum retries we declare the
1387 if (handle_4way_handshake_failure(interface,
1388 network, wifi) == TRUE)
1391 /* We disable the selected network, if not then
1392 * wpa_supplicant will loop retrying */
1393 if (g_supplicant_interface_enable_selected_network(interface,
1395 DBG("Could not disables selected network");
1397 connman_network_set_connected(network, FALSE);
1398 connman_network_set_associating(network, FALSE);
1399 wifi->disconnecting = FALSE;
1401 start_autoscan(device);
1405 case G_SUPPLICANT_STATE_INACTIVE:
1406 connman_network_set_associating(network, FALSE);
1407 start_autoscan(device);
1411 case G_SUPPLICANT_STATE_UNKNOWN:
1412 case G_SUPPLICANT_STATE_ASSOCIATED:
1413 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1414 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1418 wifi->state = state;
1420 /* Saving wpa_s state policy:
1421 * If connected and if the state changes are roaming related:
1422 * --> We stay connected
1424 * --> We are connected
1426 * --> We are not connected
1429 case G_SUPPLICANT_STATE_AUTHENTICATING:
1430 case G_SUPPLICANT_STATE_ASSOCIATING:
1431 case G_SUPPLICANT_STATE_ASSOCIATED:
1432 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1433 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1434 if (wifi->connected == TRUE)
1435 connman_warn("Probably roaming right now!"
1436 " Staying connected...");
1438 wifi->connected = FALSE;
1440 case G_SUPPLICANT_STATE_COMPLETED:
1441 wifi->connected = TRUE;
1444 wifi->connected = FALSE;
1451 static void interface_removed(GSupplicantInterface *interface)
1453 const char *ifname = g_supplicant_interface_get_ifname(interface);
1454 struct wifi_data *wifi;
1456 DBG("ifname %s", ifname);
1458 wifi = g_supplicant_interface_get_data(interface);
1460 if (wifi != NULL && wifi->tethering == TRUE)
1463 if (wifi == NULL || wifi->device == NULL) {
1464 DBG("wifi interface already removed");
1468 wifi->interface = NULL;
1469 connman_device_set_powered(wifi->device, FALSE);
1472 static void scan_started(GSupplicantInterface *interface)
1477 static void scan_finished(GSupplicantInterface *interface)
1482 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1484 unsigned char strength;
1486 strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1493 static void network_added(GSupplicantNetwork *supplicant_network)
1495 struct connman_network *network;
1496 GSupplicantInterface *interface;
1497 struct wifi_data *wifi;
1498 const char *name, *identifier, *security, *group, *mode;
1499 const unsigned char *ssid;
1500 unsigned int ssid_len;
1502 connman_bool_t wps_pbc;
1503 connman_bool_t wps_ready;
1504 connman_bool_t wps_advertizing;
1508 interface = g_supplicant_network_get_interface(supplicant_network);
1509 wifi = g_supplicant_interface_get_data(interface);
1510 name = g_supplicant_network_get_name(supplicant_network);
1511 identifier = g_supplicant_network_get_identifier(supplicant_network);
1512 security = g_supplicant_network_get_security(supplicant_network);
1513 group = g_supplicant_network_get_identifier(supplicant_network);
1514 wps = g_supplicant_network_get_wps(supplicant_network);
1515 wps_pbc = g_supplicant_network_is_wps_pbc(supplicant_network);
1516 wps_ready = g_supplicant_network_is_wps_active(supplicant_network);
1517 wps_advertizing = g_supplicant_network_is_wps_advertizing(
1518 supplicant_network);
1519 mode = g_supplicant_network_get_mode(supplicant_network);
1524 ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1526 network = connman_device_get_network(wifi->device, identifier);
1528 if (network == NULL) {
1529 network = connman_network_create(identifier,
1530 CONNMAN_NETWORK_TYPE_WIFI);
1531 if (network == NULL)
1534 connman_network_set_index(network, wifi->index);
1536 if (connman_device_add_network(wifi->device, network) < 0) {
1537 connman_network_unref(network);
1541 wifi->networks = g_slist_append(wifi->networks, network);
1544 if (name != NULL && name[0] != '\0')
1545 connman_network_set_name(network, name);
1547 connman_network_set_blob(network, "WiFi.SSID",
1549 connman_network_set_string(network, "WiFi.Security", security);
1550 connman_network_set_strength(network,
1551 calculate_strength(supplicant_network));
1552 connman_network_set_bool(network, "WiFi.WPS", wps);
1555 /* Is AP advertizing for WPS association?
1556 * If so, we decide to use WPS by default */
1557 if (wps_ready == TRUE && wps_pbc == TRUE &&
1558 wps_advertizing == TRUE)
1559 connman_network_set_bool(network, "WiFi.UseWPS", TRUE);
1562 connman_network_set_frequency(network,
1563 g_supplicant_network_get_frequency(supplicant_network));
1565 connman_network_set_available(network, TRUE);
1566 connman_network_set_string(network, "WiFi.Mode", mode);
1569 connman_network_set_group(network, group);
1571 if (wifi->hidden != NULL && ssid != NULL) {
1572 if (wifi->hidden->ssid_len == ssid_len &&
1573 memcmp(wifi->hidden->ssid, ssid,
1575 connman_network_connect_hidden(network,
1576 wifi->hidden->identity,
1577 wifi->hidden->passphrase,
1578 wifi->hidden->user_data);
1579 wifi->hidden->user_data = NULL;
1580 hidden_free(wifi->hidden);
1581 wifi->hidden = NULL;
1586 static void network_removed(GSupplicantNetwork *network)
1588 GSupplicantInterface *interface;
1589 struct wifi_data *wifi;
1590 const char *name, *identifier;
1591 struct connman_network *connman_network;
1593 interface = g_supplicant_network_get_interface(network);
1594 wifi = g_supplicant_interface_get_data(interface);
1595 identifier = g_supplicant_network_get_identifier(network);
1596 name = g_supplicant_network_get_name(network);
1598 DBG("name %s", name);
1603 connman_network = connman_device_get_network(wifi->device, identifier);
1604 if (connman_network == NULL)
1607 wifi->networks = g_slist_remove(wifi->networks, connman_network);
1609 connman_device_remove_network(wifi->device, connman_network);
1610 connman_network_unref(connman_network);
1613 static void network_changed(GSupplicantNetwork *network, const char *property)
1615 GSupplicantInterface *interface;
1616 struct wifi_data *wifi;
1617 const char *name, *identifier;
1618 struct connman_network *connman_network;
1620 interface = g_supplicant_network_get_interface(network);
1621 wifi = g_supplicant_interface_get_data(interface);
1622 identifier = g_supplicant_network_get_identifier(network);
1623 name = g_supplicant_network_get_name(network);
1625 DBG("name %s", name);
1630 connman_network = connman_device_get_network(wifi->device, identifier);
1631 if (connman_network == NULL)
1634 if (g_str_equal(property, "Signal") == TRUE) {
1635 connman_network_set_strength(connman_network,
1636 calculate_strength(network));
1637 connman_network_update(connman_network);
1641 static void debug(const char *str)
1643 if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1644 connman_debug("%s", str);
1647 static const GSupplicantCallbacks callbacks = {
1648 .system_ready = system_ready,
1649 .system_killed = system_killed,
1650 .interface_added = interface_added,
1651 .interface_state = interface_state,
1652 .interface_removed = interface_removed,
1653 .scan_started = scan_started,
1654 .scan_finished = scan_finished,
1655 .network_added = network_added,
1656 .network_removed = network_removed,
1657 .network_changed = network_changed,
1662 static int tech_probe(struct connman_technology *technology)
1664 wifi_technology = technology;
1669 static void tech_remove(struct connman_technology *technology)
1671 wifi_technology = NULL;
1674 struct wifi_tethering_info {
1675 struct wifi_data *wifi;
1676 struct connman_technology *technology;
1678 GSupplicantSSID *ssid;
1681 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1683 GSupplicantSSID *ap;
1685 ap = g_try_malloc0(sizeof(GSupplicantSSID));
1689 ap->mode = G_SUPPLICANT_MODE_MASTER;
1691 ap->ssid_len = strlen(ssid);
1695 if (passphrase == NULL || strlen(passphrase) == 0) {
1696 ap->security = G_SUPPLICANT_SECURITY_NONE;
1697 ap->passphrase = NULL;
1699 ap->security = G_SUPPLICANT_SECURITY_PSK;
1700 ap->protocol = G_SUPPLICANT_PROTO_RSN;
1701 ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1702 ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1703 ap->passphrase = passphrase;
1709 static void ap_start_callback(int result, GSupplicantInterface *interface,
1712 struct wifi_tethering_info *info = user_data;
1714 DBG("result %d index %d bridge %s",
1715 result, info->wifi->index, info->wifi->bridge);
1718 connman_inet_remove_from_bridge(info->wifi->index,
1719 info->wifi->bridge);
1720 connman_technology_tethering_notify(info->technology, FALSE);
1723 g_free(info->ifname);
1727 static void ap_create_callback(int result,
1728 GSupplicantInterface *interface,
1731 struct wifi_tethering_info *info = user_data;
1733 DBG("result %d ifname %s", result,
1734 g_supplicant_interface_get_ifname(interface));
1737 connman_inet_remove_from_bridge(info->wifi->index,
1738 info->wifi->bridge);
1739 connman_technology_tethering_notify(info->technology, FALSE);
1741 g_free(info->ifname);
1746 info->wifi->interface = interface;
1747 g_supplicant_interface_set_data(interface, info->wifi);
1749 if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1750 connman_error("Failed to set interface ap_scan property");
1752 g_supplicant_interface_connect(interface, info->ssid,
1753 ap_start_callback, info);
1756 static void sta_remove_callback(int result,
1757 GSupplicantInterface *interface,
1760 struct wifi_tethering_info *info = user_data;
1761 const char *driver = connman_option_get_string("wifi");
1763 DBG("ifname %s result %d ", info->ifname, result);
1766 info->wifi->tethering = TRUE;
1768 g_free(info->ifname);
1773 info->wifi->interface = NULL;
1775 connman_technology_tethering_notify(info->technology, TRUE);
1777 g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1782 static int tech_set_tethering(struct connman_technology *technology,
1783 const char *identifier, const char *passphrase,
1784 const char *bridge, connman_bool_t enabled)
1787 GSupplicantInterface *interface;
1788 struct wifi_data *wifi;
1789 struct wifi_tethering_info *info;
1796 if (enabled == FALSE) {
1797 for (list = iface_list; list; list = list->next) {
1800 if (wifi->tethering == TRUE) {
1801 wifi->tethering = FALSE;
1803 connman_inet_remove_from_bridge(wifi->index,
1805 wifi->bridged = FALSE;
1809 connman_technology_tethering_notify(technology, FALSE);
1814 for (list = iface_list; list; list = list->next) {
1817 interface = wifi->interface;
1819 if (interface == NULL)
1822 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1824 mode = g_supplicant_interface_get_mode(interface);
1825 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1826 DBG("%s does not support AP mode", ifname);
1830 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1835 info->technology = technology;
1836 info->wifi->bridge = bridge;
1837 info->ssid = ssid_ap_init(identifier, passphrase);
1838 if (info->ssid == NULL) {
1842 info->ifname = g_strdup(ifname);
1843 if (info->ifname == NULL) {
1848 info->wifi->tethering = TRUE;
1850 err = g_supplicant_interface_remove(interface,
1851 sta_remove_callback,
1860 static void regdom_callback(void *user_data)
1862 char *alpha2 = user_data;
1866 if (wifi_technology == NULL)
1869 connman_technology_regdom_notify(wifi_technology, alpha2);
1872 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1874 return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
1877 static struct connman_technology_driver tech_driver = {
1879 .type = CONNMAN_SERVICE_TYPE_WIFI,
1880 .probe = tech_probe,
1881 .remove = tech_remove,
1882 .set_tethering = tech_set_tethering,
1883 .set_regdom = tech_set_regdom,
1886 static int wifi_init(void)
1890 err = connman_network_driver_register(&network_driver);
1894 err = g_supplicant_register(&callbacks);
1896 connman_network_driver_unregister(&network_driver);
1900 err = connman_technology_driver_register(&tech_driver);
1902 g_supplicant_unregister(&callbacks);
1903 connman_network_driver_unregister(&network_driver);
1910 static void wifi_exit(void)
1914 connman_technology_driver_unregister(&tech_driver);
1916 g_supplicant_unregister(&callbacks);
1918 connman_network_driver_unregister(&network_driver);
1921 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1922 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)