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 stop_autoscan(device);
242 /* In case of a user scan, device is still referenced */
243 if (connman_device_get_scanning(device) == TRUE)
244 connman_device_unref(wifi->device);
246 iface_list = g_list_remove(iface_list, wifi);
248 remove_networks(device, wifi);
250 connman_device_set_powered(device, FALSE);
251 connman_device_set_data(device, NULL);
252 connman_device_unref(wifi->device);
253 connman_rtnl_remove_watch(wifi->watch);
255 g_supplicant_interface_set_data(wifi->interface, NULL);
257 g_free(wifi->autoscan);
258 g_free(wifi->identifier);
262 static int add_scan_param(gchar *hex_ssid, int freq,
263 GSupplicantScanParams *scan_data,
264 int driver_max_scan_ssids)
267 struct scan_ssid *scan_ssid;
269 if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
271 unsigned int j = 0, hex;
272 size_t hex_ssid_len = strlen(hex_ssid);
274 ssid = g_try_malloc0(hex_ssid_len / 2);
278 for (i = 0; i < hex_ssid_len; i += 2) {
279 sscanf(hex_ssid + i, "%02x", &hex);
283 scan_ssid = g_try_new(struct scan_ssid, 1);
284 if (scan_ssid == NULL) {
289 memcpy(scan_ssid->ssid, ssid, j);
290 scan_ssid->ssid_len = j;
291 scan_data->ssids = g_slist_prepend(scan_data->ssids,
294 scan_data->num_ssids++;
300 scan_data->ssids = g_slist_reverse(scan_data->ssids);
302 if (scan_data->freqs == NULL) {
303 scan_data->freqs = g_try_malloc0(sizeof(uint16_t) *
304 scan_data->num_ssids);
305 if (scan_data->freqs == NULL) {
306 g_slist_free_full(scan_data->ssids, g_free);
310 scan_data->freqs = g_try_realloc(scan_data->freqs,
311 sizeof(uint16_t) * scan_data->num_ssids);
312 if (scan_data->freqs == NULL) {
313 g_slist_free_full(scan_data->ssids, g_free);
316 scan_data->freqs[scan_data->num_ssids - 1] = 0;
319 /* Don't add duplicate entries */
320 for (i = 0; i < scan_data->num_ssids; i++) {
321 if (scan_data->freqs[i] == 0) {
322 scan_data->freqs[i] = freq;
324 } else if (scan_data->freqs[i] == freq)
331 static int get_hidden_connections(int max_ssids,
332 GSupplicantScanParams *scan_data)
340 int num_ssids = 0, add_param_failed = 0;
342 services = connman_storage_get_services();
343 for (i = 0; services && services[i]; i++) {
344 if (strncmp(services[i], "wifi_", 5) != 0)
347 keyfile = connman_storage_load_service(services[i]);
349 value = g_key_file_get_boolean(keyfile,
350 services[i], "Hidden", NULL);
351 if (value == FALSE) {
352 g_key_file_free(keyfile);
356 value = g_key_file_get_boolean(keyfile,
357 services[i], "Favorite", NULL);
358 if (value == FALSE) {
359 g_key_file_free(keyfile);
363 value = g_key_file_get_boolean(keyfile,
364 services[i], "AutoConnect", NULL);
365 if (value == FALSE) {
366 g_key_file_free(keyfile);
370 ssid = g_key_file_get_string(keyfile,
371 services[i], "SSID", NULL);
373 freq = g_key_file_get_integer(keyfile, services[i],
376 if (add_scan_param(ssid, freq, scan_data, max_ssids) < 0) {
377 str = g_key_file_get_string(keyfile,
378 services[i], "Name", NULL);
379 DBG("Cannot scan %s (%s)", ssid, str);
386 g_key_file_free(keyfile);
389 if (add_param_failed > 0)
390 connman_warn("Unable to scan %d out of %d SSIDs (max is %d)",
391 add_param_failed, num_ssids, max_ssids);
393 g_strfreev(services);
395 return num_ssids > max_ssids ? max_ssids : num_ssids;
398 static int throw_wifi_scan(struct connman_device *device,
399 GSupplicantInterfaceCallback callback)
401 struct wifi_data *wifi = connman_device_get_data(device);
404 DBG("device %p %p", device, wifi->interface);
406 if (wifi->tethering == TRUE)
409 if (connman_device_get_scanning(device) == TRUE)
412 connman_device_ref(device);
414 ret = g_supplicant_interface_scan(wifi->interface, NULL,
417 connman_device_set_scanning(device, TRUE);
419 connman_device_unref(device);
424 static void hidden_scan_callback(int result,
425 GSupplicantInterface *interface, void *user_data)
427 struct connman_device *device = user_data;
429 DBG("result %d", result);
431 connman_device_set_scanning(device, FALSE);
432 connman_device_unref(device);
435 static void autoscan_scan_callback(int result,
436 GSupplicantInterface *interface, void *user_data)
438 struct connman_device *device = user_data;
439 struct wifi_data *wifi = connman_device_get_data(device);
440 int driver_max_ssids;
442 DBG("result %d", result);
445 * Scan hidden networks so that we can autoconnect to them.
447 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
449 DBG("max ssids %d", driver_max_ssids);
451 if (driver_max_ssids > 0) {
452 GSupplicantScanParams *scan_params;
455 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
456 if (scan_params == NULL)
459 if (get_hidden_connections(driver_max_ssids,
461 ret = g_supplicant_interface_scan(wifi->interface,
463 hidden_scan_callback,
469 g_supplicant_free_scan_params(scan_params);
473 connman_device_set_scanning(device, FALSE);
474 connman_device_unref(device);
477 static gboolean autoscan_timeout(gpointer data)
479 struct connman_device *device = data;
480 struct wifi_data *wifi = connman_device_get_data(device);
481 struct autoscan_params *autoscan;
484 autoscan = wifi->autoscan;
486 if (autoscan->interval <= 0) {
487 interval = autoscan->base;
490 interval = autoscan->interval * autoscan->base;
492 if (autoscan->interval >= autoscan->limit)
493 interval = autoscan->limit;
495 throw_wifi_scan(wifi->device, autoscan_scan_callback);
498 DBG("interval %d", interval);
500 autoscan->interval = interval;
502 autoscan->timeout = g_timeout_add_seconds(interval,
503 autoscan_timeout, device);
508 static void start_autoscan(struct connman_device *device)
510 struct wifi_data *wifi = connman_device_get_data(device);
511 struct autoscan_params *autoscan;
518 autoscan = wifi->autoscan;
519 if (autoscan == NULL)
522 if (autoscan->timeout > 0 || autoscan->interval > 0)
525 connman_device_ref(device);
527 autoscan_timeout(device);
530 static struct autoscan_params *parse_autoscan_params(const char *params)
532 struct autoscan_params *autoscan;
537 DBG("Emulating autoscan");
539 list_params = g_strsplit(params, ":", 0);
540 if (list_params == 0)
543 if (g_strv_length(list_params) < 3) {
544 g_strfreev(list_params);
548 base = atoi(list_params[1]);
549 limit = atoi(list_params[2]);
551 g_strfreev(list_params);
553 autoscan = g_try_malloc0(sizeof(struct autoscan_params));
554 if (autoscan == NULL) {
555 DBG("Could not allocate memory for autoscan");
559 DBG("base %d - limit %d", base, limit);
560 autoscan->base = base;
561 autoscan->limit = limit;
566 static void setup_autoscan(struct wifi_data *wifi)
568 if (wifi->autoscan == NULL)
569 wifi->autoscan = parse_autoscan_params(AUTOSCAN_DEFAULT);
571 start_autoscan(wifi->device);
574 static void interface_create_callback(int result,
575 GSupplicantInterface *interface,
578 struct wifi_data *wifi = user_data;
580 DBG("result %d ifname %s, wifi %p", result,
581 g_supplicant_interface_get_ifname(interface),
584 if (result < 0 || wifi == NULL)
587 wifi->interface = interface;
588 g_supplicant_interface_set_data(interface, wifi);
590 if (g_supplicant_interface_get_ready(interface) == FALSE)
593 DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
595 if (wifi->device == NULL) {
596 connman_error("WiFi device not set");
600 connman_device_set_powered(wifi->device, TRUE);
602 if (connman_setting_get_bool("BackgroundScanning") == FALSE)
605 /* Setting up automatic scanning */
606 setup_autoscan(wifi);
609 static int wifi_enable(struct connman_device *device)
611 struct wifi_data *wifi = connman_device_get_data(device);
612 const char *interface = connman_device_get_string(device, "Interface");
613 const char *driver = connman_option_get_string("wifi");
616 DBG("device %p %p", device, wifi);
618 ret = g_supplicant_interface_create(interface, driver, NULL,
619 interface_create_callback,
627 static int wifi_disable(struct connman_device *device)
629 struct wifi_data *wifi = connman_device_get_data(device);
632 DBG("device %p", device);
634 wifi->connected = FALSE;
635 wifi->disconnecting = FALSE;
637 if (wifi->pending_network != NULL)
638 wifi->pending_network = NULL;
640 remove_networks(device, wifi);
642 ret = g_supplicant_interface_remove(wifi->interface, NULL, NULL);
649 static void hidden_free(struct hidden_params *hidden)
654 g_free(hidden->identity);
655 g_free(hidden->passphrase);
659 static void scan_callback(int result, GSupplicantInterface *interface,
662 struct connman_device *device = user_data;
663 struct wifi_data *wifi = connman_device_get_data(device);
665 DBG("result %d", result);
667 if (wifi != NULL && wifi->hidden != NULL) {
668 connman_network_clear_hidden(wifi->hidden->user_data);
669 hidden_free(wifi->hidden);
674 connman_device_reset_scanning(device);
676 connman_device_set_scanning(device, FALSE);
677 connman_device_unref(device);
679 start_autoscan(device);
682 struct last_connected {
688 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
690 GTimeVal *aval = (GTimeVal *)a;
691 GTimeVal *bval = (GTimeVal *)b;
693 /* Note that the sort order is descending */
694 if (aval->tv_sec < bval->tv_sec)
697 if (aval->tv_sec > bval->tv_sec)
703 static void free_entry(gpointer data)
705 struct last_connected *entry = data;
711 static int get_latest_connections(int max_ssids,
712 GSupplicantScanParams *scan_data)
715 GSequence *latest_list;
716 struct last_connected *entry;
725 latest_list = g_sequence_new(free_entry);
726 if (latest_list == NULL)
729 services = connman_storage_get_services();
730 for (i = 0; services && services[i]; i++) {
731 if (strncmp(services[i], "wifi_", 5) != 0)
734 keyfile = connman_storage_load_service(services[i]);
736 str = g_key_file_get_string(keyfile,
737 services[i], "Favorite", NULL);
738 if (str == NULL || g_strcmp0(str, "true")) {
741 g_key_file_free(keyfile);
746 str = g_key_file_get_string(keyfile,
747 services[i], "AutoConnect", NULL);
748 if (str == NULL || g_strcmp0(str, "true")) {
751 g_key_file_free(keyfile);
756 str = g_key_file_get_string(keyfile,
757 services[i], "Modified", NULL);
759 g_time_val_from_iso8601(str, &modified);
763 ssid = g_key_file_get_string(keyfile,
764 services[i], "SSID", NULL);
766 freq = g_key_file_get_integer(keyfile, services[i],
769 entry = g_try_new(struct last_connected, 1);
771 g_sequence_free(latest_list);
772 g_key_file_free(keyfile);
778 entry->modified = modified;
781 g_sequence_insert_sorted(latest_list, entry,
787 g_key_file_free(keyfile);
790 g_strfreev(services);
792 num_ssids = num_ssids > max_ssids ? max_ssids : num_ssids;
794 iter = g_sequence_get_begin_iter(latest_list);
796 for (i = 0; i < num_ssids; i++) {
797 entry = g_sequence_get(iter);
799 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
800 entry->modified.tv_sec);
802 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
804 iter = g_sequence_iter_next(iter);
807 g_sequence_free(latest_list);
811 static int wifi_scan(struct connman_device *device)
813 stop_autoscan(device);
815 return throw_wifi_scan(device, scan_callback);
818 static int wifi_scan_fast(struct connman_device *device)
820 struct wifi_data *wifi = connman_device_get_data(device);
821 GSupplicantScanParams *scan_params = NULL;
823 int driver_max_ssids = 0;
825 DBG("device %p %p", device, wifi->interface);
827 if (wifi->tethering == TRUE)
830 stop_autoscan(device);
832 if (connman_device_get_scanning(device) == TRUE)
835 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
837 DBG("max ssids %d", driver_max_ssids);
838 if (driver_max_ssids == 0)
839 return wifi_scan(device);
841 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
842 if (scan_params == NULL)
845 ret = get_latest_connections(driver_max_ssids, scan_params);
847 g_supplicant_free_scan_params(scan_params);
848 return wifi_scan(device);
851 connman_device_ref(device);
852 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
853 scan_callback, device);
855 connman_device_set_scanning(device, TRUE);
857 g_supplicant_free_scan_params(scan_params);
858 connman_device_unref(device);
865 * This func is only used when connecting to this specific AP first time.
866 * It is not used when system autoconnects to hidden AP.
868 static int wifi_scan_hidden(struct connman_device *device,
869 const char *ssid, unsigned int ssid_len,
870 const char *identity, const char* passphrase,
873 struct wifi_data *wifi = connman_device_get_data(device);
874 GSupplicantScanParams *scan_params = NULL;
875 struct scan_ssid *scan_ssid;
876 struct hidden_params *hidden;
879 DBG("hidden SSID %s", ssid);
881 if (wifi->tethering == TRUE || wifi->hidden != NULL)
884 if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
887 stop_autoscan(device);
889 if (connman_device_get_scanning(device) == TRUE)
892 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
893 if (scan_params == NULL)
896 scan_ssid = g_try_new(struct scan_ssid, 1);
897 if (scan_ssid == NULL) {
902 memcpy(scan_ssid->ssid, ssid, ssid_len);
903 scan_ssid->ssid_len = ssid_len;
904 scan_params->ssids = g_slist_prepend(scan_params->ssids, scan_ssid);
906 scan_params->num_ssids = 1;
908 hidden = g_try_new0(struct hidden_params, 1);
909 if (hidden == NULL) {
913 memcpy(hidden->ssid, ssid, ssid_len);
914 hidden->ssid_len = ssid_len;
915 hidden->identity = g_strdup(identity);
916 hidden->passphrase = g_strdup(passphrase);
917 hidden->user_data = user_data;
918 wifi->hidden = hidden;
920 connman_device_ref(device);
921 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
922 scan_callback, device);
924 connman_device_set_scanning(device, TRUE);
926 connman_device_unref(device);
927 g_supplicant_free_scan_params(scan_params);
928 hidden_free(wifi->hidden);
935 static struct connman_device_driver wifi_ng_driver = {
937 .type = CONNMAN_DEVICE_TYPE_WIFI,
938 .priority = CONNMAN_DEVICE_PRIORITY_LOW,
940 .remove = wifi_remove,
941 .enable = wifi_enable,
942 .disable = wifi_disable,
944 .scan_fast = wifi_scan_fast,
945 .scan_hidden = wifi_scan_hidden,
948 static void system_ready(void)
952 if (connman_device_driver_register(&wifi_ng_driver) < 0)
953 connman_error("Failed to register WiFi driver");
956 static void system_killed(void)
960 connman_device_driver_unregister(&wifi_ng_driver);
963 static int network_probe(struct connman_network *network)
965 DBG("network %p", network);
970 static void network_remove(struct connman_network *network)
972 struct connman_device *device = connman_network_get_device(network);
973 struct wifi_data *wifi;
975 DBG("network %p", network);
977 wifi = connman_device_get_data(device);
981 if (wifi->network != network)
984 wifi->network = NULL;
987 static void connect_callback(int result, GSupplicantInterface *interface,
990 struct connman_network *network = user_data;
992 DBG("network %p result %d", network, result);
994 if (result == -ENOKEY) {
995 connman_network_set_error(network,
996 CONNMAN_NETWORK_ERROR_INVALID_KEY);
997 } else if (result < 0) {
998 connman_network_set_error(network,
999 CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
1003 static GSupplicantSecurity network_security(const char *security)
1005 if (g_str_equal(security, "none") == TRUE)
1006 return G_SUPPLICANT_SECURITY_NONE;
1007 else if (g_str_equal(security, "wep") == TRUE)
1008 return G_SUPPLICANT_SECURITY_WEP;
1009 else if (g_str_equal(security, "psk") == TRUE)
1010 return G_SUPPLICANT_SECURITY_PSK;
1011 else if (g_str_equal(security, "wpa") == TRUE)
1012 return G_SUPPLICANT_SECURITY_PSK;
1013 else if (g_str_equal(security, "rsn") == TRUE)
1014 return G_SUPPLICANT_SECURITY_PSK;
1015 else if (g_str_equal(security, "ieee8021x") == TRUE)
1016 return G_SUPPLICANT_SECURITY_IEEE8021X;
1018 return G_SUPPLICANT_SECURITY_UNKNOWN;
1021 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
1023 const char *security, *passphrase, *agent_passphrase;
1025 memset(ssid, 0, sizeof(*ssid));
1026 ssid->mode = G_SUPPLICANT_MODE_INFRA;
1027 ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
1029 ssid->scan_ssid = 1;
1030 security = connman_network_get_string(network, "WiFi.Security");
1031 ssid->security = network_security(security);
1032 passphrase = connman_network_get_string(network,
1034 if (passphrase == NULL || strlen(passphrase) == 0) {
1036 /* Use agent provided passphrase as a fallback */
1037 agent_passphrase = connman_network_get_string(network,
1038 "WiFi.AgentPassphrase");
1040 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
1041 ssid->passphrase = NULL;
1043 ssid->passphrase = agent_passphrase;
1045 ssid->passphrase = passphrase;
1047 ssid->eap = connman_network_get_string(network, "WiFi.EAP");
1050 * If our private key password is unset,
1051 * we use the supplied passphrase. That is needed
1052 * for PEAP where 2 passphrases (identity and client
1053 * cert may have to be provided.
1055 if (connman_network_get_string(network,
1056 "WiFi.PrivateKeyPassphrase") == NULL)
1057 connman_network_set_string(network,
1058 "WiFi.PrivateKeyPassphrase",
1060 /* We must have an identity for both PEAP and TLS */
1061 ssid->identity = connman_network_get_string(network, "WiFi.Identity");
1063 /* Use agent provided identity as a fallback */
1064 if (ssid->identity == NULL || strlen(ssid->identity) == 0)
1065 ssid->identity = connman_network_get_string(network,
1066 "WiFi.AgentIdentity");
1068 ssid->ca_cert_path = connman_network_get_string(network,
1070 ssid->client_cert_path = connman_network_get_string(network,
1071 "WiFi.ClientCertFile");
1072 ssid->private_key_path = connman_network_get_string(network,
1073 "WiFi.PrivateKeyFile");
1074 ssid->private_key_passphrase = connman_network_get_string(network,
1075 "WiFi.PrivateKeyPassphrase");
1076 ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
1078 ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
1079 ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
1081 if (connman_setting_get_bool("BackgroundScanning") == TRUE)
1082 ssid->bgscan = BGSCAN_DEFAULT;
1085 static int network_connect(struct connman_network *network)
1087 struct connman_device *device = connman_network_get_device(network);
1088 struct wifi_data *wifi;
1089 GSupplicantInterface *interface;
1090 GSupplicantSSID *ssid;
1092 DBG("network %p", network);
1097 wifi = connman_device_get_data(device);
1101 ssid = g_try_malloc0(sizeof(GSupplicantSSID));
1105 interface = wifi->interface;
1107 ssid_init(ssid, network);
1109 if (wifi->disconnecting == TRUE)
1110 wifi->pending_network = network;
1112 wifi->network = network;
1115 return g_supplicant_interface_connect(interface, ssid,
1116 connect_callback, network);
1119 return -EINPROGRESS;
1122 static void disconnect_callback(int result, GSupplicantInterface *interface,
1125 struct wifi_data *wifi = user_data;
1127 if (wifi->network != NULL) {
1129 * if result < 0 supplican return an error because
1130 * the network is not current.
1131 * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
1132 * failed, call connman_network_set_connected to report
1133 * disconnect is completed.
1136 connman_network_set_connected(wifi->network, FALSE);
1139 wifi->network = NULL;
1141 wifi->disconnecting = FALSE;
1143 if (wifi->pending_network != NULL) {
1144 network_connect(wifi->pending_network);
1145 wifi->pending_network = NULL;
1148 start_autoscan(wifi->device);
1151 static int network_disconnect(struct connman_network *network)
1153 struct connman_device *device = connman_network_get_device(network);
1154 struct wifi_data *wifi;
1157 DBG("network %p", network);
1159 wifi = connman_device_get_data(device);
1160 if (wifi == NULL || wifi->interface == NULL)
1163 connman_network_set_associating(network, FALSE);
1165 if (wifi->disconnecting == TRUE)
1168 wifi->disconnecting = TRUE;
1170 err = g_supplicant_interface_disconnect(wifi->interface,
1171 disconnect_callback, wifi);
1173 wifi->disconnecting = FALSE;
1178 static struct connman_network_driver network_driver = {
1180 .type = CONNMAN_NETWORK_TYPE_WIFI,
1181 .priority = CONNMAN_NETWORK_PRIORITY_LOW,
1182 .probe = network_probe,
1183 .remove = network_remove,
1184 .connect = network_connect,
1185 .disconnect = network_disconnect,
1188 static void interface_added(GSupplicantInterface *interface)
1190 const char *ifname = g_supplicant_interface_get_ifname(interface);
1191 const char *driver = g_supplicant_interface_get_driver(interface);
1192 struct wifi_data *wifi;
1194 wifi = g_supplicant_interface_get_data(interface);
1197 * We can get here with a NULL wifi pointer when
1198 * the interface added signal is sent before the
1199 * interface creation callback is called.
1204 DBG("ifname %s driver %s wifi %p tethering %d",
1205 ifname, driver, wifi, wifi->tethering);
1207 if (wifi->device == NULL) {
1208 connman_error("WiFi device not set");
1212 connman_device_set_powered(wifi->device, TRUE);
1214 if (wifi->tethering == TRUE)
1218 static connman_bool_t is_idle(struct wifi_data *wifi)
1220 DBG("state %d", wifi->state);
1222 switch (wifi->state) {
1223 case G_SUPPLICANT_STATE_UNKNOWN:
1224 case G_SUPPLICANT_STATE_DISCONNECTED:
1225 case G_SUPPLICANT_STATE_INACTIVE:
1226 case G_SUPPLICANT_STATE_SCANNING:
1229 case G_SUPPLICANT_STATE_AUTHENTICATING:
1230 case G_SUPPLICANT_STATE_ASSOCIATING:
1231 case G_SUPPLICANT_STATE_ASSOCIATED:
1232 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1233 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1234 case G_SUPPLICANT_STATE_COMPLETED:
1241 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
1242 struct wifi_data *wifi)
1244 /* First, let's check if WPS processing did not went wrong */
1245 if (g_supplicant_interface_get_wps_state(interface) ==
1246 G_SUPPLICANT_WPS_STATE_FAIL)
1249 /* Unlike normal connection, being associated while processing wps
1250 * actually means that we are idling. */
1251 switch (wifi->state) {
1252 case G_SUPPLICANT_STATE_UNKNOWN:
1253 case G_SUPPLICANT_STATE_DISCONNECTED:
1254 case G_SUPPLICANT_STATE_INACTIVE:
1255 case G_SUPPLICANT_STATE_SCANNING:
1256 case G_SUPPLICANT_STATE_ASSOCIATED:
1258 case G_SUPPLICANT_STATE_AUTHENTICATING:
1259 case G_SUPPLICANT_STATE_ASSOCIATING:
1260 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1261 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1262 case G_SUPPLICANT_STATE_COMPLETED:
1269 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
1270 struct connman_network *network,
1271 struct connman_device *device,
1272 struct wifi_data *wifi)
1276 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1278 const unsigned char *ssid, *wps_ssid;
1279 unsigned int ssid_len, wps_ssid_len;
1280 const char *wps_key;
1282 /* Checking if we got associated with requested
1284 ssid = connman_network_get_blob(network, "WiFi.SSID",
1287 wps_ssid = g_supplicant_interface_get_wps_ssid(
1288 interface, &wps_ssid_len);
1290 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
1291 memcmp(ssid, wps_ssid, ssid_len) != 0) {
1292 connman_network_set_associating(network, FALSE);
1293 g_supplicant_interface_disconnect(wifi->interface,
1294 disconnect_callback, wifi);
1298 wps_key = g_supplicant_interface_get_wps_key(interface);
1299 connman_network_set_string(network, "WiFi.Passphrase",
1302 connman_network_set_string(network, "WiFi.PinWPS", NULL);
1308 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
1309 struct connman_network *network,
1310 struct wifi_data *wifi)
1312 if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
1317 if (wifi->retries < MAXIMUM_RETRIES)
1320 connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
1325 static void interface_state(GSupplicantInterface *interface)
1327 struct connman_network *network;
1328 struct connman_device *device;
1329 struct wifi_data *wifi;
1330 GSupplicantState state = g_supplicant_interface_get_state(interface);
1333 wifi = g_supplicant_interface_get_data(interface);
1335 DBG("wifi %p interface state %d", wifi, state);
1340 network = wifi->network;
1341 device = wifi->device;
1343 if (device == NULL || network == NULL)
1347 case G_SUPPLICANT_STATE_SCANNING:
1350 case G_SUPPLICANT_STATE_AUTHENTICATING:
1351 case G_SUPPLICANT_STATE_ASSOCIATING:
1352 stop_autoscan(device);
1354 if (wifi->connected == FALSE)
1355 connman_network_set_associating(network, TRUE);
1359 case G_SUPPLICANT_STATE_COMPLETED:
1360 /* though it should be already stopped: */
1361 stop_autoscan(device);
1363 if (handle_wps_completion(interface, network, device, wifi) ==
1367 connman_network_set_connected(network, TRUE);
1370 case G_SUPPLICANT_STATE_DISCONNECTED:
1372 * If we're in one of the idle modes, we have
1373 * not started association yet and thus setting
1374 * those ones to FALSE could cancel an association
1377 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1379 if (is_idle_wps(interface, wifi) == TRUE)
1385 /* If previous state was 4way-handshake, then
1386 * it's either: psk was incorrect and thus we retry
1387 * or if we reach the maximum retries we declare the
1389 if (handle_4way_handshake_failure(interface,
1390 network, wifi) == TRUE)
1393 /* We disable the selected network, if not then
1394 * wpa_supplicant will loop retrying */
1395 if (g_supplicant_interface_enable_selected_network(interface,
1397 DBG("Could not disables selected network");
1399 connman_network_set_connected(network, FALSE);
1400 connman_network_set_associating(network, FALSE);
1401 wifi->disconnecting = FALSE;
1403 start_autoscan(device);
1407 case G_SUPPLICANT_STATE_INACTIVE:
1408 connman_network_set_associating(network, FALSE);
1409 start_autoscan(device);
1413 case G_SUPPLICANT_STATE_UNKNOWN:
1414 case G_SUPPLICANT_STATE_ASSOCIATED:
1415 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1416 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1420 wifi->state = state;
1422 /* Saving wpa_s state policy:
1423 * If connected and if the state changes are roaming related:
1424 * --> We stay connected
1426 * --> We are connected
1428 * --> We are not connected
1431 case G_SUPPLICANT_STATE_AUTHENTICATING:
1432 case G_SUPPLICANT_STATE_ASSOCIATING:
1433 case G_SUPPLICANT_STATE_ASSOCIATED:
1434 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1435 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1436 if (wifi->connected == TRUE)
1437 connman_warn("Probably roaming right now!"
1438 " Staying connected...");
1440 wifi->connected = FALSE;
1442 case G_SUPPLICANT_STATE_COMPLETED:
1443 wifi->connected = TRUE;
1446 wifi->connected = FALSE;
1453 static void interface_removed(GSupplicantInterface *interface)
1455 const char *ifname = g_supplicant_interface_get_ifname(interface);
1456 struct wifi_data *wifi;
1458 DBG("ifname %s", ifname);
1460 wifi = g_supplicant_interface_get_data(interface);
1462 if (wifi != NULL && wifi->tethering == TRUE)
1465 if (wifi == NULL || wifi->device == NULL) {
1466 connman_error("Wrong wifi pointer");
1470 wifi->interface = NULL;
1471 connman_device_set_powered(wifi->device, FALSE);
1474 static void scan_started(GSupplicantInterface *interface)
1479 static void scan_finished(GSupplicantInterface *interface)
1484 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1486 unsigned char strength;
1488 strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1495 static void network_added(GSupplicantNetwork *supplicant_network)
1497 struct connman_network *network;
1498 GSupplicantInterface *interface;
1499 struct wifi_data *wifi;
1500 const char *name, *identifier, *security, *group, *mode;
1501 const unsigned char *ssid;
1502 unsigned int ssid_len;
1504 connman_bool_t wps_pbc;
1505 connman_bool_t wps_ready;
1506 connman_bool_t wps_advertizing;
1510 interface = g_supplicant_network_get_interface(supplicant_network);
1511 wifi = g_supplicant_interface_get_data(interface);
1512 name = g_supplicant_network_get_name(supplicant_network);
1513 identifier = g_supplicant_network_get_identifier(supplicant_network);
1514 security = g_supplicant_network_get_security(supplicant_network);
1515 group = g_supplicant_network_get_identifier(supplicant_network);
1516 wps = g_supplicant_network_get_wps(supplicant_network);
1517 wps_pbc = g_supplicant_network_is_wps_pbc(supplicant_network);
1518 wps_ready = g_supplicant_network_is_wps_active(supplicant_network);
1519 wps_advertizing = g_supplicant_network_is_wps_advertizing(
1520 supplicant_network);
1521 mode = g_supplicant_network_get_mode(supplicant_network);
1526 ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1528 network = connman_device_get_network(wifi->device, identifier);
1530 if (network == NULL) {
1531 network = connman_network_create(identifier,
1532 CONNMAN_NETWORK_TYPE_WIFI);
1533 if (network == NULL)
1536 connman_network_set_index(network, wifi->index);
1538 if (connman_device_add_network(wifi->device, network) < 0) {
1539 connman_network_unref(network);
1543 wifi->networks = g_slist_append(wifi->networks, network);
1546 if (name != NULL && name[0] != '\0')
1547 connman_network_set_name(network, name);
1549 connman_network_set_blob(network, "WiFi.SSID",
1551 connman_network_set_string(network, "WiFi.Security", security);
1552 connman_network_set_strength(network,
1553 calculate_strength(supplicant_network));
1554 connman_network_set_bool(network, "WiFi.WPS", wps);
1557 /* Is AP advertizing for WPS association?
1558 * If so, we decide to use WPS by default */
1559 if (wps_ready == TRUE && wps_pbc == TRUE &&
1560 wps_advertizing == TRUE)
1561 connman_network_set_bool(network, "WiFi.UseWPS", TRUE);
1564 connman_network_set_frequency(network,
1565 g_supplicant_network_get_frequency(supplicant_network));
1567 connman_network_set_available(network, TRUE);
1568 connman_network_set_string(network, "WiFi.Mode", mode);
1571 connman_network_set_group(network, group);
1573 if (wifi->hidden != NULL && ssid != NULL) {
1574 if (wifi->hidden->ssid_len == ssid_len &&
1575 memcmp(wifi->hidden->ssid, ssid,
1577 connman_network_connect_hidden(network,
1578 wifi->hidden->identity,
1579 wifi->hidden->passphrase,
1580 wifi->hidden->user_data);
1581 wifi->hidden->user_data = NULL;
1582 hidden_free(wifi->hidden);
1583 wifi->hidden = NULL;
1588 static void network_removed(GSupplicantNetwork *network)
1590 GSupplicantInterface *interface;
1591 struct wifi_data *wifi;
1592 const char *name, *identifier;
1593 struct connman_network *connman_network;
1595 interface = g_supplicant_network_get_interface(network);
1596 wifi = g_supplicant_interface_get_data(interface);
1597 identifier = g_supplicant_network_get_identifier(network);
1598 name = g_supplicant_network_get_name(network);
1600 DBG("name %s", name);
1605 connman_network = connman_device_get_network(wifi->device, identifier);
1606 if (connman_network == NULL)
1609 wifi->networks = g_slist_remove(wifi->networks, connman_network);
1611 connman_device_remove_network(wifi->device, connman_network);
1612 connman_network_unref(connman_network);
1615 static void network_changed(GSupplicantNetwork *network, const char *property)
1617 GSupplicantInterface *interface;
1618 struct wifi_data *wifi;
1619 const char *name, *identifier;
1620 struct connman_network *connman_network;
1622 interface = g_supplicant_network_get_interface(network);
1623 wifi = g_supplicant_interface_get_data(interface);
1624 identifier = g_supplicant_network_get_identifier(network);
1625 name = g_supplicant_network_get_name(network);
1627 DBG("name %s", name);
1632 connman_network = connman_device_get_network(wifi->device, identifier);
1633 if (connman_network == NULL)
1636 if (g_str_equal(property, "Signal") == TRUE) {
1637 connman_network_set_strength(connman_network,
1638 calculate_strength(network));
1639 connman_network_update(connman_network);
1643 static void debug(const char *str)
1645 if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1646 connman_debug("%s", str);
1649 static const GSupplicantCallbacks callbacks = {
1650 .system_ready = system_ready,
1651 .system_killed = system_killed,
1652 .interface_added = interface_added,
1653 .interface_state = interface_state,
1654 .interface_removed = interface_removed,
1655 .scan_started = scan_started,
1656 .scan_finished = scan_finished,
1657 .network_added = network_added,
1658 .network_removed = network_removed,
1659 .network_changed = network_changed,
1664 static int tech_probe(struct connman_technology *technology)
1666 wifi_technology = technology;
1671 static void tech_remove(struct connman_technology *technology)
1673 wifi_technology = NULL;
1676 struct wifi_tethering_info {
1677 struct wifi_data *wifi;
1678 struct connman_technology *technology;
1680 GSupplicantSSID *ssid;
1683 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1685 GSupplicantSSID *ap;
1687 ap = g_try_malloc0(sizeof(GSupplicantSSID));
1691 ap->mode = G_SUPPLICANT_MODE_MASTER;
1693 ap->ssid_len = strlen(ssid);
1697 if (passphrase == NULL || strlen(passphrase) == 0) {
1698 ap->security = G_SUPPLICANT_SECURITY_NONE;
1699 ap->passphrase = NULL;
1701 ap->security = G_SUPPLICANT_SECURITY_PSK;
1702 ap->protocol = G_SUPPLICANT_PROTO_RSN;
1703 ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1704 ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1705 ap->passphrase = passphrase;
1711 static void ap_start_callback(int result, GSupplicantInterface *interface,
1714 struct wifi_tethering_info *info = user_data;
1716 DBG("result %d index %d bridge %s",
1717 result, info->wifi->index, info->wifi->bridge);
1720 connman_inet_remove_from_bridge(info->wifi->index,
1721 info->wifi->bridge);
1722 connman_technology_tethering_notify(info->technology, FALSE);
1725 g_free(info->ifname);
1729 static void ap_create_callback(int result,
1730 GSupplicantInterface *interface,
1733 struct wifi_tethering_info *info = user_data;
1735 DBG("result %d ifname %s", result,
1736 g_supplicant_interface_get_ifname(interface));
1739 connman_inet_remove_from_bridge(info->wifi->index,
1740 info->wifi->bridge);
1741 connman_technology_tethering_notify(info->technology, FALSE);
1743 g_free(info->ifname);
1748 info->wifi->interface = interface;
1749 g_supplicant_interface_set_data(interface, info->wifi);
1751 if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1752 connman_error("Failed to set interface ap_scan property");
1754 g_supplicant_interface_connect(interface, info->ssid,
1755 ap_start_callback, info);
1758 static void sta_remove_callback(int result,
1759 GSupplicantInterface *interface,
1762 struct wifi_tethering_info *info = user_data;
1763 const char *driver = connman_option_get_string("wifi");
1765 DBG("ifname %s result %d ", info->ifname, result);
1768 info->wifi->tethering = TRUE;
1770 g_free(info->ifname);
1775 info->wifi->interface = NULL;
1777 connman_technology_tethering_notify(info->technology, TRUE);
1779 g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1784 static int tech_set_tethering(struct connman_technology *technology,
1785 const char *identifier, const char *passphrase,
1786 const char *bridge, connman_bool_t enabled)
1789 GSupplicantInterface *interface;
1790 struct wifi_data *wifi;
1791 struct wifi_tethering_info *info;
1798 if (enabled == FALSE) {
1799 for (list = iface_list; list; list = list->next) {
1802 if (wifi->tethering == TRUE) {
1803 wifi->tethering = FALSE;
1805 connman_inet_remove_from_bridge(wifi->index,
1807 wifi->bridged = FALSE;
1811 connman_technology_tethering_notify(technology, FALSE);
1816 for (list = iface_list; list; list = list->next) {
1819 interface = wifi->interface;
1821 if (interface == NULL)
1824 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1826 mode = g_supplicant_interface_get_mode(interface);
1827 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1828 DBG("%s does not support AP mode", ifname);
1832 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1837 info->technology = technology;
1838 info->wifi->bridge = bridge;
1839 info->ssid = ssid_ap_init(identifier, passphrase);
1840 if (info->ssid == NULL) {
1844 info->ifname = g_strdup(ifname);
1845 if (info->ifname == NULL) {
1850 info->wifi->tethering = TRUE;
1852 err = g_supplicant_interface_remove(interface,
1853 sta_remove_callback,
1862 static void regdom_callback(void *user_data)
1864 char *alpha2 = user_data;
1868 if (wifi_technology == NULL)
1871 connman_technology_regdom_notify(wifi_technology, alpha2);
1874 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1876 return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
1879 static struct connman_technology_driver tech_driver = {
1881 .type = CONNMAN_SERVICE_TYPE_WIFI,
1882 .probe = tech_probe,
1883 .remove = tech_remove,
1884 .set_tethering = tech_set_tethering,
1885 .set_regdom = tech_set_regdom,
1888 static int wifi_init(void)
1892 err = connman_network_driver_register(&network_driver);
1896 err = g_supplicant_register(&callbacks);
1898 connman_network_driver_unregister(&network_driver);
1902 err = connman_technology_driver_register(&tech_driver);
1904 g_supplicant_unregister(&callbacks);
1905 connman_network_driver_unregister(&network_driver);
1912 static void wifi_exit(void)
1916 connman_technology_driver_unregister(&tech_driver);
1918 g_supplicant_unregister(&callbacks);
1920 connman_network_driver_unregister(&network_driver);
1923 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1924 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)