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);
140 DBG("index %d flags %d change %d", wifi->index, flags, change);
145 if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
149 DBG("interface down");
152 if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
153 if (flags & IFF_LOWER_UP) {
156 handle_tethering(wifi);
164 static int wifi_probe(struct connman_device *device)
166 struct wifi_data *wifi;
168 DBG("device %p", device);
170 wifi = g_try_new0(struct wifi_data, 1);
174 wifi->connected = FALSE;
175 wifi->disconnecting = FALSE;
176 wifi->tethering = FALSE;
177 wifi->bridged = FALSE;
179 wifi->state = G_SUPPLICANT_STATE_INACTIVE;
181 connman_device_set_data(device, wifi);
182 wifi->device = connman_device_ref(device);
184 wifi->index = connman_device_get_index(device);
187 wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
188 wifi_newlink, device);
190 iface_list = g_list_append(iface_list, wifi);
195 static void remove_networks(struct connman_device *device,
196 struct wifi_data *wifi)
200 for (list = wifi->networks; list != NULL; list = list->next) {
201 struct connman_network *network = list->data;
203 connman_device_remove_network(device, network);
204 connman_network_unref(network);
207 g_slist_free(wifi->networks);
208 wifi->networks = NULL;
211 static void reset_autoscan(struct connman_device *device)
213 struct wifi_data *wifi = connman_device_get_data(device);
214 struct autoscan_params *autoscan;
218 if (wifi == NULL || wifi->autoscan == NULL)
221 autoscan = wifi->autoscan;
223 if (autoscan->timeout == 0 && autoscan->interval == 0)
226 g_source_remove(autoscan->timeout);
228 autoscan->timeout = 0;
229 autoscan->interval = 0;
231 connman_device_unref(device);
234 static void stop_autoscan(struct connman_device *device)
236 reset_autoscan(device);
238 connman_device_set_scanning(device, FALSE);
241 static void wifi_remove(struct connman_device *device)
243 struct wifi_data *wifi = connman_device_get_data(device);
245 DBG("device %p wifi %p", device, wifi);
250 iface_list = g_list_remove(iface_list, wifi);
252 remove_networks(device, wifi);
254 connman_device_set_powered(device, FALSE);
255 connman_device_set_data(device, NULL);
256 connman_device_unref(wifi->device);
257 connman_rtnl_remove_watch(wifi->watch);
259 g_supplicant_interface_set_data(wifi->interface, NULL);
261 g_free(wifi->autoscan);
262 g_free(wifi->identifier);
266 static int add_scan_param(gchar *hex_ssid, int freq,
267 GSupplicantScanParams *scan_data,
268 int driver_max_scan_ssids)
271 struct scan_ssid *scan_ssid;
273 if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
275 unsigned int j = 0, hex;
276 size_t hex_ssid_len = strlen(hex_ssid);
278 ssid = g_try_malloc0(hex_ssid_len / 2);
282 for (i = 0; i < hex_ssid_len; i += 2) {
283 sscanf(hex_ssid + i, "%02x", &hex);
287 scan_ssid = g_try_new(struct scan_ssid, 1);
288 if (scan_ssid == NULL) {
293 memcpy(scan_ssid->ssid, ssid, j);
294 scan_ssid->ssid_len = j;
295 scan_data->ssids = g_slist_prepend(scan_data->ssids,
298 scan_data->num_ssids++;
304 scan_data->ssids = g_slist_reverse(scan_data->ssids);
306 if (scan_data->freqs == NULL) {
307 scan_data->freqs = g_try_malloc0(sizeof(uint16_t) *
308 scan_data->num_ssids);
309 if (scan_data->freqs == NULL) {
310 g_slist_free_full(scan_data->ssids, g_free);
314 scan_data->freqs = g_try_realloc(scan_data->freqs,
315 sizeof(uint16_t) * scan_data->num_ssids);
316 if (scan_data->freqs == NULL) {
317 g_slist_free_full(scan_data->ssids, g_free);
320 scan_data->freqs[scan_data->num_ssids - 1] = 0;
323 /* Don't add duplicate entries */
324 for (i = 0; i < scan_data->num_ssids; i++) {
325 if (scan_data->freqs[i] == 0) {
326 scan_data->freqs[i] = freq;
328 } else if (scan_data->freqs[i] == freq)
335 static int get_hidden_connections(int max_ssids,
336 GSupplicantScanParams *scan_data)
344 int num_ssids = 0, add_param_failed = 0;
346 services = connman_storage_get_services();
347 for (i = 0; services && services[i]; i++) {
348 if (strncmp(services[i], "wifi_", 5) != 0)
351 keyfile = connman_storage_load_service(services[i]);
353 value = g_key_file_get_boolean(keyfile,
354 services[i], "Hidden", NULL);
355 if (value == FALSE) {
356 g_key_file_free(keyfile);
360 value = g_key_file_get_boolean(keyfile,
361 services[i], "Favorite", NULL);
362 if (value == FALSE) {
363 g_key_file_free(keyfile);
367 value = g_key_file_get_boolean(keyfile,
368 services[i], "AutoConnect", NULL);
369 if (value == FALSE) {
370 g_key_file_free(keyfile);
374 ssid = g_key_file_get_string(keyfile,
375 services[i], "SSID", NULL);
377 freq = g_key_file_get_integer(keyfile, services[i],
380 if (add_scan_param(ssid, freq, scan_data, max_ssids) < 0) {
381 str = g_key_file_get_string(keyfile,
382 services[i], "Name", NULL);
383 DBG("Cannot scan %s (%s)", ssid, str);
390 g_key_file_free(keyfile);
393 if (add_param_failed > 0)
394 connman_warn("Unable to scan %d out of %d SSIDs (max is %d)",
395 add_param_failed, num_ssids, max_ssids);
397 g_strfreev(services);
399 return num_ssids > max_ssids ? max_ssids : num_ssids;
402 static int throw_wifi_scan(struct connman_device *device,
403 GSupplicantInterfaceCallback callback)
405 struct wifi_data *wifi = connman_device_get_data(device);
411 DBG("device %p %p", device, wifi->interface);
413 if (wifi->tethering == TRUE)
416 if (connman_device_get_scanning(device) == TRUE)
419 connman_device_ref(device);
421 ret = g_supplicant_interface_scan(wifi->interface, NULL,
424 connman_device_set_scanning(device, TRUE);
426 connman_device_unref(device);
431 static void hidden_free(struct hidden_params *hidden)
436 g_free(hidden->identity);
437 g_free(hidden->passphrase);
441 static void scan_callback(int result, GSupplicantInterface *interface,
444 struct connman_device *device = user_data;
445 struct wifi_data *wifi = connman_device_get_data(device);
447 DBG("result %d wifi %p", result, wifi);
449 if (wifi != NULL && wifi->hidden != NULL) {
450 connman_network_clear_hidden(wifi->hidden->user_data);
451 hidden_free(wifi->hidden);
456 connman_device_reset_scanning(device);
458 connman_device_set_scanning(device, FALSE);
459 start_autoscan(device);
460 connman_device_unref(device);
463 static void scan_callback_hidden(int result,
464 GSupplicantInterface *interface, void *user_data)
466 struct connman_device *device = user_data;
467 struct wifi_data *wifi = connman_device_get_data(device);
468 int driver_max_ssids;
470 DBG("result %d wifi %p", result, wifi);
476 * Scan hidden networks so that we can autoconnect to them.
478 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
480 DBG("max ssids %d", driver_max_ssids);
482 if (driver_max_ssids > 0) {
483 GSupplicantScanParams *scan_params;
486 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
487 if (scan_params == NULL)
490 if (get_hidden_connections(driver_max_ssids,
492 ret = g_supplicant_interface_scan(wifi->interface,
500 g_supplicant_free_scan_params(scan_params);
504 scan_callback(result, interface, user_data);
507 static gboolean autoscan_timeout(gpointer data)
509 struct connman_device *device = data;
510 struct wifi_data *wifi = connman_device_get_data(device);
511 struct autoscan_params *autoscan;
517 autoscan = wifi->autoscan;
519 if (autoscan->interval <= 0) {
520 interval = autoscan->base;
523 interval = autoscan->interval * autoscan->base;
525 if (autoscan->interval >= autoscan->limit)
526 interval = autoscan->limit;
528 throw_wifi_scan(wifi->device, scan_callback_hidden);
531 DBG("interval %d", interval);
533 autoscan->interval = interval;
535 autoscan->timeout = g_timeout_add_seconds(interval,
536 autoscan_timeout, device);
541 static void start_autoscan(struct connman_device *device)
543 struct wifi_data *wifi = connman_device_get_data(device);
544 struct autoscan_params *autoscan;
551 autoscan = wifi->autoscan;
552 if (autoscan == NULL)
555 if (autoscan->timeout > 0 || autoscan->interval > 0)
558 connman_device_ref(device);
560 autoscan_timeout(device);
563 static struct autoscan_params *parse_autoscan_params(const char *params)
565 struct autoscan_params *autoscan;
570 DBG("Emulating autoscan");
572 list_params = g_strsplit(params, ":", 0);
573 if (list_params == 0)
576 if (g_strv_length(list_params) < 3) {
577 g_strfreev(list_params);
581 base = atoi(list_params[1]);
582 limit = atoi(list_params[2]);
584 g_strfreev(list_params);
586 autoscan = g_try_malloc0(sizeof(struct autoscan_params));
587 if (autoscan == NULL) {
588 DBG("Could not allocate memory for autoscan");
592 DBG("base %d - limit %d", base, limit);
593 autoscan->base = base;
594 autoscan->limit = limit;
599 static void setup_autoscan(struct wifi_data *wifi)
601 if (wifi->autoscan == NULL)
602 wifi->autoscan = parse_autoscan_params(AUTOSCAN_DEFAULT);
604 start_autoscan(wifi->device);
607 static void interface_create_callback(int result,
608 GSupplicantInterface *interface,
611 struct wifi_data *wifi = user_data;
613 DBG("result %d ifname %s, wifi %p", result,
614 g_supplicant_interface_get_ifname(interface),
617 if (result < 0 || wifi == NULL)
620 wifi->interface = interface;
621 g_supplicant_interface_set_data(interface, wifi);
623 if (g_supplicant_interface_get_ready(interface) == FALSE)
626 DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
628 if (wifi->device == NULL) {
629 connman_error("WiFi device not set");
633 connman_device_set_powered(wifi->device, TRUE);
635 if (connman_setting_get_bool("BackgroundScanning") == FALSE)
638 /* Setting up automatic scanning */
639 setup_autoscan(wifi);
642 static int wifi_enable(struct connman_device *device)
644 struct wifi_data *wifi = connman_device_get_data(device);
645 const char *interface = connman_device_get_string(device, "Interface");
646 const char *driver = connman_option_get_string("wifi");
649 DBG("device %p %p", device, wifi);
654 ret = g_supplicant_interface_create(interface, driver, NULL,
655 interface_create_callback,
663 static int wifi_disable(struct connman_device *device)
665 struct wifi_data *wifi = connman_device_get_data(device);
668 DBG("device %p wifi %p", device, wifi);
673 wifi->connected = FALSE;
674 wifi->disconnecting = FALSE;
676 if (wifi->pending_network != NULL)
677 wifi->pending_network = NULL;
679 stop_autoscan(device);
681 /* In case of a user scan, device is still referenced */
682 if (connman_device_get_scanning(device) == TRUE) {
683 connman_device_set_scanning(device, FALSE);
684 connman_device_unref(wifi->device);
687 remove_networks(device, wifi);
689 ret = g_supplicant_interface_remove(wifi->interface, NULL, NULL);
696 struct last_connected {
702 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
704 GTimeVal *aval = (GTimeVal *)a;
705 GTimeVal *bval = (GTimeVal *)b;
707 /* Note that the sort order is descending */
708 if (aval->tv_sec < bval->tv_sec)
711 if (aval->tv_sec > bval->tv_sec)
717 static void free_entry(gpointer data)
719 struct last_connected *entry = data;
725 static int get_latest_connections(int max_ssids,
726 GSupplicantScanParams *scan_data)
729 GSequence *latest_list;
730 struct last_connected *entry;
739 latest_list = g_sequence_new(free_entry);
740 if (latest_list == NULL)
743 services = connman_storage_get_services();
744 for (i = 0; services && services[i]; i++) {
745 if (strncmp(services[i], "wifi_", 5) != 0)
748 keyfile = connman_storage_load_service(services[i]);
750 str = g_key_file_get_string(keyfile,
751 services[i], "Favorite", NULL);
752 if (str == NULL || g_strcmp0(str, "true")) {
755 g_key_file_free(keyfile);
760 str = g_key_file_get_string(keyfile,
761 services[i], "AutoConnect", NULL);
762 if (str == NULL || g_strcmp0(str, "true")) {
765 g_key_file_free(keyfile);
770 str = g_key_file_get_string(keyfile,
771 services[i], "Modified", NULL);
773 g_time_val_from_iso8601(str, &modified);
777 ssid = g_key_file_get_string(keyfile,
778 services[i], "SSID", NULL);
780 freq = g_key_file_get_integer(keyfile, services[i],
783 entry = g_try_new(struct last_connected, 1);
785 g_sequence_free(latest_list);
786 g_key_file_free(keyfile);
792 entry->modified = modified;
795 g_sequence_insert_sorted(latest_list, entry,
801 g_key_file_free(keyfile);
804 g_strfreev(services);
806 num_ssids = num_ssids > max_ssids ? max_ssids : num_ssids;
808 iter = g_sequence_get_begin_iter(latest_list);
810 for (i = 0; i < num_ssids; i++) {
811 entry = g_sequence_get(iter);
813 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
814 entry->modified.tv_sec);
816 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
818 iter = g_sequence_iter_next(iter);
821 g_sequence_free(latest_list);
825 static int wifi_scan(struct connman_device *device)
827 reset_autoscan(device);
829 return throw_wifi_scan(device, scan_callback_hidden);
832 static int wifi_scan_fast(struct connman_device *device)
834 struct wifi_data *wifi = connman_device_get_data(device);
835 GSupplicantScanParams *scan_params = NULL;
837 int driver_max_ssids = 0;
842 DBG("device %p %p", device, wifi->interface);
844 if (wifi->tethering == TRUE)
847 if (connman_device_get_scanning(device) == TRUE)
850 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
852 DBG("max ssids %d", driver_max_ssids);
853 if (driver_max_ssids == 0)
854 return wifi_scan(device);
856 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
857 if (scan_params == NULL)
860 ret = get_latest_connections(driver_max_ssids, scan_params);
862 g_supplicant_free_scan_params(scan_params);
863 return wifi_scan(device);
866 connman_device_ref(device);
867 reset_autoscan(device);
869 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
870 scan_callback, device);
872 connman_device_set_scanning(device, TRUE);
874 g_supplicant_free_scan_params(scan_params);
875 connman_device_unref(device);
882 * This func is only used when connecting to this specific AP first time.
883 * It is not used when system autoconnects to hidden AP.
885 static int wifi_scan_hidden(struct connman_device *device,
886 const char *ssid, unsigned int ssid_len,
887 const char *identity, const char* passphrase,
890 struct wifi_data *wifi = connman_device_get_data(device);
891 GSupplicantScanParams *scan_params = NULL;
892 struct scan_ssid *scan_ssid;
893 struct hidden_params *hidden;
899 DBG("hidden SSID %s", ssid);
901 if (wifi->tethering == TRUE || wifi->hidden != NULL)
904 if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
907 if (connman_device_get_scanning(device) == TRUE)
910 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
911 if (scan_params == NULL)
914 scan_ssid = g_try_new(struct scan_ssid, 1);
915 if (scan_ssid == NULL) {
920 memcpy(scan_ssid->ssid, ssid, ssid_len);
921 scan_ssid->ssid_len = ssid_len;
922 scan_params->ssids = g_slist_prepend(scan_params->ssids, scan_ssid);
924 scan_params->num_ssids = 1;
926 hidden = g_try_new0(struct hidden_params, 1);
927 if (hidden == NULL) {
931 memcpy(hidden->ssid, ssid, ssid_len);
932 hidden->ssid_len = ssid_len;
933 hidden->identity = g_strdup(identity);
934 hidden->passphrase = g_strdup(passphrase);
935 hidden->user_data = user_data;
936 wifi->hidden = hidden;
938 connman_device_ref(device);
940 reset_autoscan(device);
942 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
943 scan_callback, device);
945 connman_device_set_scanning(device, TRUE);
947 connman_device_unref(device);
948 g_supplicant_free_scan_params(scan_params);
949 hidden_free(wifi->hidden);
956 static struct connman_device_driver wifi_ng_driver = {
958 .type = CONNMAN_DEVICE_TYPE_WIFI,
959 .priority = CONNMAN_DEVICE_PRIORITY_LOW,
961 .remove = wifi_remove,
962 .enable = wifi_enable,
963 .disable = wifi_disable,
965 .scan_fast = wifi_scan_fast,
966 .scan_hidden = wifi_scan_hidden,
969 static void system_ready(void)
973 if (connman_device_driver_register(&wifi_ng_driver) < 0)
974 connman_error("Failed to register WiFi driver");
977 static void system_killed(void)
981 connman_device_driver_unregister(&wifi_ng_driver);
984 static int network_probe(struct connman_network *network)
986 DBG("network %p", network);
991 static void network_remove(struct connman_network *network)
993 struct connman_device *device = connman_network_get_device(network);
994 struct wifi_data *wifi;
996 DBG("network %p", network);
998 wifi = connman_device_get_data(device);
1002 if (wifi->network != network)
1005 wifi->network = NULL;
1008 static void connect_callback(int result, GSupplicantInterface *interface,
1011 struct connman_network *network = user_data;
1013 DBG("network %p result %d", network, result);
1015 if (result == -ENOKEY) {
1016 connman_network_set_error(network,
1017 CONNMAN_NETWORK_ERROR_INVALID_KEY);
1018 } else if (result < 0) {
1019 connman_network_set_error(network,
1020 CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
1024 static GSupplicantSecurity network_security(const char *security)
1026 if (g_str_equal(security, "none") == TRUE)
1027 return G_SUPPLICANT_SECURITY_NONE;
1028 else if (g_str_equal(security, "wep") == TRUE)
1029 return G_SUPPLICANT_SECURITY_WEP;
1030 else if (g_str_equal(security, "psk") == TRUE)
1031 return G_SUPPLICANT_SECURITY_PSK;
1032 else if (g_str_equal(security, "wpa") == TRUE)
1033 return G_SUPPLICANT_SECURITY_PSK;
1034 else if (g_str_equal(security, "rsn") == TRUE)
1035 return G_SUPPLICANT_SECURITY_PSK;
1036 else if (g_str_equal(security, "ieee8021x") == TRUE)
1037 return G_SUPPLICANT_SECURITY_IEEE8021X;
1039 return G_SUPPLICANT_SECURITY_UNKNOWN;
1042 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
1044 const char *security, *passphrase, *agent_passphrase;
1046 memset(ssid, 0, sizeof(*ssid));
1047 ssid->mode = G_SUPPLICANT_MODE_INFRA;
1048 ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
1050 ssid->scan_ssid = 1;
1051 security = connman_network_get_string(network, "WiFi.Security");
1052 ssid->security = network_security(security);
1053 passphrase = connman_network_get_string(network,
1055 if (passphrase == NULL || strlen(passphrase) == 0) {
1057 /* Use agent provided passphrase as a fallback */
1058 agent_passphrase = connman_network_get_string(network,
1059 "WiFi.AgentPassphrase");
1061 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
1062 ssid->passphrase = NULL;
1064 ssid->passphrase = agent_passphrase;
1066 ssid->passphrase = passphrase;
1068 ssid->eap = connman_network_get_string(network, "WiFi.EAP");
1071 * If our private key password is unset,
1072 * we use the supplied passphrase. That is needed
1073 * for PEAP where 2 passphrases (identity and client
1074 * cert may have to be provided.
1076 if (connman_network_get_string(network,
1077 "WiFi.PrivateKeyPassphrase") == NULL)
1078 connman_network_set_string(network,
1079 "WiFi.PrivateKeyPassphrase",
1081 /* We must have an identity for both PEAP and TLS */
1082 ssid->identity = connman_network_get_string(network, "WiFi.Identity");
1084 /* Use agent provided identity as a fallback */
1085 if (ssid->identity == NULL || strlen(ssid->identity) == 0)
1086 ssid->identity = connman_network_get_string(network,
1087 "WiFi.AgentIdentity");
1089 ssid->ca_cert_path = connman_network_get_string(network,
1091 ssid->client_cert_path = connman_network_get_string(network,
1092 "WiFi.ClientCertFile");
1093 ssid->private_key_path = connman_network_get_string(network,
1094 "WiFi.PrivateKeyFile");
1095 ssid->private_key_passphrase = connman_network_get_string(network,
1096 "WiFi.PrivateKeyPassphrase");
1097 ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
1099 ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
1100 ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
1102 if (connman_setting_get_bool("BackgroundScanning") == TRUE)
1103 ssid->bgscan = BGSCAN_DEFAULT;
1106 static int network_connect(struct connman_network *network)
1108 struct connman_device *device = connman_network_get_device(network);
1109 struct wifi_data *wifi;
1110 GSupplicantInterface *interface;
1111 GSupplicantSSID *ssid;
1113 DBG("network %p", network);
1118 wifi = connman_device_get_data(device);
1122 ssid = g_try_malloc0(sizeof(GSupplicantSSID));
1126 interface = wifi->interface;
1128 ssid_init(ssid, network);
1130 if (wifi->disconnecting == TRUE)
1131 wifi->pending_network = network;
1133 wifi->network = network;
1136 return g_supplicant_interface_connect(interface, ssid,
1137 connect_callback, network);
1140 return -EINPROGRESS;
1143 static void disconnect_callback(int result, GSupplicantInterface *interface,
1146 struct wifi_data *wifi = user_data;
1148 if (wifi->network != NULL) {
1150 * if result < 0 supplican return an error because
1151 * the network is not current.
1152 * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
1153 * failed, call connman_network_set_connected to report
1154 * disconnect is completed.
1157 connman_network_set_connected(wifi->network, FALSE);
1160 wifi->network = NULL;
1162 wifi->disconnecting = FALSE;
1164 if (wifi->pending_network != NULL) {
1165 network_connect(wifi->pending_network);
1166 wifi->pending_network = NULL;
1169 start_autoscan(wifi->device);
1172 static int network_disconnect(struct connman_network *network)
1174 struct connman_device *device = connman_network_get_device(network);
1175 struct wifi_data *wifi;
1178 DBG("network %p", network);
1180 wifi = connman_device_get_data(device);
1181 if (wifi == NULL || wifi->interface == NULL)
1184 connman_network_set_associating(network, FALSE);
1186 if (wifi->disconnecting == TRUE)
1189 wifi->disconnecting = TRUE;
1191 err = g_supplicant_interface_disconnect(wifi->interface,
1192 disconnect_callback, wifi);
1194 wifi->disconnecting = FALSE;
1199 static struct connman_network_driver network_driver = {
1201 .type = CONNMAN_NETWORK_TYPE_WIFI,
1202 .priority = CONNMAN_NETWORK_PRIORITY_LOW,
1203 .probe = network_probe,
1204 .remove = network_remove,
1205 .connect = network_connect,
1206 .disconnect = network_disconnect,
1209 static void interface_added(GSupplicantInterface *interface)
1211 const char *ifname = g_supplicant_interface_get_ifname(interface);
1212 const char *driver = g_supplicant_interface_get_driver(interface);
1213 struct wifi_data *wifi;
1215 wifi = g_supplicant_interface_get_data(interface);
1218 * We can get here with a NULL wifi pointer when
1219 * the interface added signal is sent before the
1220 * interface creation callback is called.
1225 DBG("ifname %s driver %s wifi %p tethering %d",
1226 ifname, driver, wifi, wifi->tethering);
1228 if (wifi->device == NULL) {
1229 connman_error("WiFi device not set");
1233 connman_device_set_powered(wifi->device, TRUE);
1235 if (wifi->tethering == TRUE)
1239 static connman_bool_t is_idle(struct wifi_data *wifi)
1241 DBG("state %d", wifi->state);
1243 switch (wifi->state) {
1244 case G_SUPPLICANT_STATE_UNKNOWN:
1245 case G_SUPPLICANT_STATE_DISCONNECTED:
1246 case G_SUPPLICANT_STATE_INACTIVE:
1247 case G_SUPPLICANT_STATE_SCANNING:
1250 case G_SUPPLICANT_STATE_AUTHENTICATING:
1251 case G_SUPPLICANT_STATE_ASSOCIATING:
1252 case G_SUPPLICANT_STATE_ASSOCIATED:
1253 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1254 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1255 case G_SUPPLICANT_STATE_COMPLETED:
1262 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
1263 struct wifi_data *wifi)
1265 /* First, let's check if WPS processing did not went wrong */
1266 if (g_supplicant_interface_get_wps_state(interface) ==
1267 G_SUPPLICANT_WPS_STATE_FAIL)
1270 /* Unlike normal connection, being associated while processing wps
1271 * actually means that we are idling. */
1272 switch (wifi->state) {
1273 case G_SUPPLICANT_STATE_UNKNOWN:
1274 case G_SUPPLICANT_STATE_DISCONNECTED:
1275 case G_SUPPLICANT_STATE_INACTIVE:
1276 case G_SUPPLICANT_STATE_SCANNING:
1277 case G_SUPPLICANT_STATE_ASSOCIATED:
1279 case G_SUPPLICANT_STATE_AUTHENTICATING:
1280 case G_SUPPLICANT_STATE_ASSOCIATING:
1281 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1282 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1283 case G_SUPPLICANT_STATE_COMPLETED:
1290 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
1291 struct connman_network *network,
1292 struct connman_device *device,
1293 struct wifi_data *wifi)
1297 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1299 const unsigned char *ssid, *wps_ssid;
1300 unsigned int ssid_len, wps_ssid_len;
1301 const char *wps_key;
1303 /* Checking if we got associated with requested
1305 ssid = connman_network_get_blob(network, "WiFi.SSID",
1308 wps_ssid = g_supplicant_interface_get_wps_ssid(
1309 interface, &wps_ssid_len);
1311 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
1312 memcmp(ssid, wps_ssid, ssid_len) != 0) {
1313 connman_network_set_associating(network, FALSE);
1314 g_supplicant_interface_disconnect(wifi->interface,
1315 disconnect_callback, wifi);
1319 wps_key = g_supplicant_interface_get_wps_key(interface);
1320 connman_network_set_string(network, "WiFi.Passphrase",
1323 connman_network_set_string(network, "WiFi.PinWPS", NULL);
1329 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
1330 struct connman_network *network,
1331 struct wifi_data *wifi)
1333 if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
1338 if (wifi->retries < MAXIMUM_RETRIES)
1341 connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
1346 static void interface_state(GSupplicantInterface *interface)
1348 struct connman_network *network;
1349 struct connman_device *device;
1350 struct wifi_data *wifi;
1351 GSupplicantState state = g_supplicant_interface_get_state(interface);
1354 wifi = g_supplicant_interface_get_data(interface);
1356 DBG("wifi %p interface state %d", wifi, state);
1361 network = wifi->network;
1362 device = wifi->device;
1364 if (device == NULL || network == NULL)
1368 case G_SUPPLICANT_STATE_SCANNING:
1371 case G_SUPPLICANT_STATE_AUTHENTICATING:
1372 case G_SUPPLICANT_STATE_ASSOCIATING:
1373 stop_autoscan(device);
1375 if (wifi->connected == FALSE)
1376 connman_network_set_associating(network, TRUE);
1380 case G_SUPPLICANT_STATE_COMPLETED:
1381 /* though it should be already stopped: */
1382 stop_autoscan(device);
1384 if (handle_wps_completion(interface, network, device, wifi) ==
1388 connman_network_set_connected(network, TRUE);
1391 case G_SUPPLICANT_STATE_DISCONNECTED:
1393 * If we're in one of the idle modes, we have
1394 * not started association yet and thus setting
1395 * those ones to FALSE could cancel an association
1398 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1400 if (is_idle_wps(interface, wifi) == TRUE)
1406 /* If previous state was 4way-handshake, then
1407 * it's either: psk was incorrect and thus we retry
1408 * or if we reach the maximum retries we declare the
1410 if (handle_4way_handshake_failure(interface,
1411 network, wifi) == TRUE)
1414 /* We disable the selected network, if not then
1415 * wpa_supplicant will loop retrying */
1416 if (g_supplicant_interface_enable_selected_network(interface,
1418 DBG("Could not disables selected network");
1420 connman_network_set_connected(network, FALSE);
1421 connman_network_set_associating(network, FALSE);
1422 wifi->disconnecting = FALSE;
1424 start_autoscan(device);
1428 case G_SUPPLICANT_STATE_INACTIVE:
1429 connman_network_set_associating(network, FALSE);
1430 start_autoscan(device);
1434 case G_SUPPLICANT_STATE_UNKNOWN:
1435 case G_SUPPLICANT_STATE_ASSOCIATED:
1436 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1437 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1441 wifi->state = state;
1443 /* Saving wpa_s state policy:
1444 * If connected and if the state changes are roaming related:
1445 * --> We stay connected
1447 * --> We are connected
1449 * --> We are not connected
1452 case G_SUPPLICANT_STATE_AUTHENTICATING:
1453 case G_SUPPLICANT_STATE_ASSOCIATING:
1454 case G_SUPPLICANT_STATE_ASSOCIATED:
1455 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1456 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1457 if (wifi->connected == TRUE)
1458 connman_warn("Probably roaming right now!"
1459 " Staying connected...");
1461 wifi->connected = FALSE;
1463 case G_SUPPLICANT_STATE_COMPLETED:
1464 wifi->connected = TRUE;
1467 wifi->connected = FALSE;
1474 static void interface_removed(GSupplicantInterface *interface)
1476 const char *ifname = g_supplicant_interface_get_ifname(interface);
1477 struct wifi_data *wifi;
1479 DBG("ifname %s", ifname);
1481 wifi = g_supplicant_interface_get_data(interface);
1483 if (wifi != NULL && wifi->tethering == TRUE)
1486 if (wifi == NULL || wifi->device == NULL) {
1487 DBG("wifi interface already removed");
1491 wifi->interface = NULL;
1492 connman_device_set_powered(wifi->device, FALSE);
1495 static void scan_started(GSupplicantInterface *interface)
1500 static void scan_finished(GSupplicantInterface *interface)
1505 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1507 unsigned char strength;
1509 strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1516 static void network_added(GSupplicantNetwork *supplicant_network)
1518 struct connman_network *network;
1519 GSupplicantInterface *interface;
1520 struct wifi_data *wifi;
1521 const char *name, *identifier, *security, *group, *mode;
1522 const unsigned char *ssid;
1523 unsigned int ssid_len;
1525 connman_bool_t wps_pbc;
1526 connman_bool_t wps_ready;
1527 connman_bool_t wps_advertizing;
1531 interface = g_supplicant_network_get_interface(supplicant_network);
1532 wifi = g_supplicant_interface_get_data(interface);
1533 name = g_supplicant_network_get_name(supplicant_network);
1534 identifier = g_supplicant_network_get_identifier(supplicant_network);
1535 security = g_supplicant_network_get_security(supplicant_network);
1536 group = g_supplicant_network_get_identifier(supplicant_network);
1537 wps = g_supplicant_network_get_wps(supplicant_network);
1538 wps_pbc = g_supplicant_network_is_wps_pbc(supplicant_network);
1539 wps_ready = g_supplicant_network_is_wps_active(supplicant_network);
1540 wps_advertizing = g_supplicant_network_is_wps_advertizing(
1541 supplicant_network);
1542 mode = g_supplicant_network_get_mode(supplicant_network);
1547 ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1549 network = connman_device_get_network(wifi->device, identifier);
1551 if (network == NULL) {
1552 network = connman_network_create(identifier,
1553 CONNMAN_NETWORK_TYPE_WIFI);
1554 if (network == NULL)
1557 connman_network_set_index(network, wifi->index);
1559 if (connman_device_add_network(wifi->device, network) < 0) {
1560 connman_network_unref(network);
1564 wifi->networks = g_slist_append(wifi->networks, network);
1567 if (name != NULL && name[0] != '\0')
1568 connman_network_set_name(network, name);
1570 connman_network_set_blob(network, "WiFi.SSID",
1572 connman_network_set_string(network, "WiFi.Security", security);
1573 connman_network_set_strength(network,
1574 calculate_strength(supplicant_network));
1575 connman_network_set_bool(network, "WiFi.WPS", wps);
1578 /* Is AP advertizing for WPS association?
1579 * If so, we decide to use WPS by default */
1580 if (wps_ready == TRUE && wps_pbc == TRUE &&
1581 wps_advertizing == TRUE)
1582 connman_network_set_bool(network, "WiFi.UseWPS", TRUE);
1585 connman_network_set_frequency(network,
1586 g_supplicant_network_get_frequency(supplicant_network));
1588 connman_network_set_available(network, TRUE);
1589 connman_network_set_string(network, "WiFi.Mode", mode);
1592 connman_network_set_group(network, group);
1594 if (wifi->hidden != NULL && ssid != NULL) {
1595 if (wifi->hidden->ssid_len == ssid_len &&
1596 memcmp(wifi->hidden->ssid, ssid,
1598 connman_network_connect_hidden(network,
1599 wifi->hidden->identity,
1600 wifi->hidden->passphrase,
1601 wifi->hidden->user_data);
1602 wifi->hidden->user_data = NULL;
1603 hidden_free(wifi->hidden);
1604 wifi->hidden = NULL;
1609 static void network_removed(GSupplicantNetwork *network)
1611 GSupplicantInterface *interface;
1612 struct wifi_data *wifi;
1613 const char *name, *identifier;
1614 struct connman_network *connman_network;
1616 interface = g_supplicant_network_get_interface(network);
1617 wifi = g_supplicant_interface_get_data(interface);
1618 identifier = g_supplicant_network_get_identifier(network);
1619 name = g_supplicant_network_get_name(network);
1621 DBG("name %s", name);
1626 connman_network = connman_device_get_network(wifi->device, identifier);
1627 if (connman_network == NULL)
1630 wifi->networks = g_slist_remove(wifi->networks, connman_network);
1632 connman_device_remove_network(wifi->device, connman_network);
1633 connman_network_unref(connman_network);
1636 static void network_changed(GSupplicantNetwork *network, const char *property)
1638 GSupplicantInterface *interface;
1639 struct wifi_data *wifi;
1640 const char *name, *identifier;
1641 struct connman_network *connman_network;
1643 interface = g_supplicant_network_get_interface(network);
1644 wifi = g_supplicant_interface_get_data(interface);
1645 identifier = g_supplicant_network_get_identifier(network);
1646 name = g_supplicant_network_get_name(network);
1648 DBG("name %s", name);
1653 connman_network = connman_device_get_network(wifi->device, identifier);
1654 if (connman_network == NULL)
1657 if (g_str_equal(property, "Signal") == TRUE) {
1658 connman_network_set_strength(connman_network,
1659 calculate_strength(network));
1660 connman_network_update(connman_network);
1664 static void debug(const char *str)
1666 if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1667 connman_debug("%s", str);
1670 static const GSupplicantCallbacks callbacks = {
1671 .system_ready = system_ready,
1672 .system_killed = system_killed,
1673 .interface_added = interface_added,
1674 .interface_state = interface_state,
1675 .interface_removed = interface_removed,
1676 .scan_started = scan_started,
1677 .scan_finished = scan_finished,
1678 .network_added = network_added,
1679 .network_removed = network_removed,
1680 .network_changed = network_changed,
1685 static int tech_probe(struct connman_technology *technology)
1687 wifi_technology = technology;
1692 static void tech_remove(struct connman_technology *technology)
1694 wifi_technology = NULL;
1697 struct wifi_tethering_info {
1698 struct wifi_data *wifi;
1699 struct connman_technology *technology;
1701 GSupplicantSSID *ssid;
1704 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1706 GSupplicantSSID *ap;
1708 ap = g_try_malloc0(sizeof(GSupplicantSSID));
1712 ap->mode = G_SUPPLICANT_MODE_MASTER;
1714 ap->ssid_len = strlen(ssid);
1718 if (passphrase == NULL || strlen(passphrase) == 0) {
1719 ap->security = G_SUPPLICANT_SECURITY_NONE;
1720 ap->passphrase = NULL;
1722 ap->security = G_SUPPLICANT_SECURITY_PSK;
1723 ap->protocol = G_SUPPLICANT_PROTO_RSN;
1724 ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1725 ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1726 ap->passphrase = passphrase;
1732 static void ap_start_callback(int result, GSupplicantInterface *interface,
1735 struct wifi_tethering_info *info = user_data;
1737 DBG("result %d index %d bridge %s",
1738 result, info->wifi->index, info->wifi->bridge);
1741 connman_inet_remove_from_bridge(info->wifi->index,
1742 info->wifi->bridge);
1743 connman_technology_tethering_notify(info->technology, FALSE);
1746 g_free(info->ifname);
1750 static void ap_create_callback(int result,
1751 GSupplicantInterface *interface,
1754 struct wifi_tethering_info *info = user_data;
1756 DBG("result %d ifname %s", result,
1757 g_supplicant_interface_get_ifname(interface));
1760 connman_inet_remove_from_bridge(info->wifi->index,
1761 info->wifi->bridge);
1762 connman_technology_tethering_notify(info->technology, FALSE);
1764 g_free(info->ifname);
1769 info->wifi->interface = interface;
1770 g_supplicant_interface_set_data(interface, info->wifi);
1772 if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1773 connman_error("Failed to set interface ap_scan property");
1775 g_supplicant_interface_connect(interface, info->ssid,
1776 ap_start_callback, info);
1779 static void sta_remove_callback(int result,
1780 GSupplicantInterface *interface,
1783 struct wifi_tethering_info *info = user_data;
1784 const char *driver = connman_option_get_string("wifi");
1786 DBG("ifname %s result %d ", info->ifname, result);
1789 info->wifi->tethering = TRUE;
1791 g_free(info->ifname);
1796 info->wifi->interface = NULL;
1798 connman_technology_tethering_notify(info->technology, TRUE);
1800 g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1805 static int tech_set_tethering(struct connman_technology *technology,
1806 const char *identifier, const char *passphrase,
1807 const char *bridge, connman_bool_t enabled)
1810 GSupplicantInterface *interface;
1811 struct wifi_data *wifi;
1812 struct wifi_tethering_info *info;
1819 if (enabled == FALSE) {
1820 for (list = iface_list; list; list = list->next) {
1823 if (wifi->tethering == TRUE) {
1824 wifi->tethering = FALSE;
1826 connman_inet_remove_from_bridge(wifi->index,
1828 wifi->bridged = FALSE;
1832 connman_technology_tethering_notify(technology, FALSE);
1837 for (list = iface_list; list; list = list->next) {
1840 interface = wifi->interface;
1842 if (interface == NULL)
1845 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1847 mode = g_supplicant_interface_get_mode(interface);
1848 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1849 DBG("%s does not support AP mode", ifname);
1853 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1858 info->technology = technology;
1859 info->wifi->bridge = bridge;
1860 info->ssid = ssid_ap_init(identifier, passphrase);
1861 if (info->ssid == NULL) {
1865 info->ifname = g_strdup(ifname);
1866 if (info->ifname == NULL) {
1871 info->wifi->tethering = TRUE;
1873 err = g_supplicant_interface_remove(interface,
1874 sta_remove_callback,
1883 static void regdom_callback(int result, const char *alpha2, void *user_data)
1887 if (wifi_technology == NULL)
1893 connman_technology_regdom_notify(wifi_technology, alpha2);
1896 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1898 return g_supplicant_set_country(alpha2, regdom_callback, NULL);
1901 static struct connman_technology_driver tech_driver = {
1903 .type = CONNMAN_SERVICE_TYPE_WIFI,
1904 .probe = tech_probe,
1905 .remove = tech_remove,
1906 .set_tethering = tech_set_tethering,
1907 .set_regdom = tech_set_regdom,
1910 static int wifi_init(void)
1914 err = connman_network_driver_register(&network_driver);
1918 err = g_supplicant_register(&callbacks);
1920 connman_network_driver_unregister(&network_driver);
1924 err = connman_technology_driver_register(&tech_driver);
1926 g_supplicant_unregister(&callbacks);
1927 connman_network_driver_unregister(&network_driver);
1934 static void wifi_exit(void)
1938 connman_technology_driver_unregister(&tech_driver);
1940 g_supplicant_unregister(&callbacks);
1942 connman_network_driver_unregister(&network_driver);
1945 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1946 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)