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 reset_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_unref(device);
229 static void stop_autoscan(struct connman_device *device)
231 reset_autoscan(device);
233 connman_device_set_scanning(device, FALSE);
236 static void wifi_remove(struct connman_device *device)
238 struct wifi_data *wifi = connman_device_get_data(device);
240 DBG("device %p wifi %p", device, wifi);
245 iface_list = g_list_remove(iface_list, wifi);
247 remove_networks(device, wifi);
249 connman_device_set_powered(device, FALSE);
250 connman_device_set_data(device, NULL);
251 connman_device_unref(wifi->device);
252 connman_rtnl_remove_watch(wifi->watch);
254 g_supplicant_interface_set_data(wifi->interface, NULL);
256 g_free(wifi->autoscan);
257 g_free(wifi->identifier);
261 static int add_scan_param(gchar *hex_ssid, int freq,
262 GSupplicantScanParams *scan_data,
263 int driver_max_scan_ssids)
266 struct scan_ssid *scan_ssid;
268 if (driver_max_scan_ssids > scan_data->num_ssids && hex_ssid != NULL) {
270 unsigned int j = 0, hex;
271 size_t hex_ssid_len = strlen(hex_ssid);
273 ssid = g_try_malloc0(hex_ssid_len / 2);
277 for (i = 0; i < hex_ssid_len; i += 2) {
278 sscanf(hex_ssid + i, "%02x", &hex);
282 scan_ssid = g_try_new(struct scan_ssid, 1);
283 if (scan_ssid == NULL) {
288 memcpy(scan_ssid->ssid, ssid, j);
289 scan_ssid->ssid_len = j;
290 scan_data->ssids = g_slist_prepend(scan_data->ssids,
293 scan_data->num_ssids++;
299 scan_data->ssids = g_slist_reverse(scan_data->ssids);
301 if (scan_data->freqs == NULL) {
302 scan_data->freqs = g_try_malloc0(sizeof(uint16_t) *
303 scan_data->num_ssids);
304 if (scan_data->freqs == NULL) {
305 g_slist_free_full(scan_data->ssids, g_free);
309 scan_data->freqs = g_try_realloc(scan_data->freqs,
310 sizeof(uint16_t) * scan_data->num_ssids);
311 if (scan_data->freqs == NULL) {
312 g_slist_free_full(scan_data->ssids, g_free);
315 scan_data->freqs[scan_data->num_ssids - 1] = 0;
318 /* Don't add duplicate entries */
319 for (i = 0; i < scan_data->num_ssids; i++) {
320 if (scan_data->freqs[i] == 0) {
321 scan_data->freqs[i] = freq;
323 } else if (scan_data->freqs[i] == freq)
330 static int get_hidden_connections(int max_ssids,
331 GSupplicantScanParams *scan_data)
339 int num_ssids = 0, add_param_failed = 0;
341 services = connman_storage_get_services();
342 for (i = 0; services && services[i]; i++) {
343 if (strncmp(services[i], "wifi_", 5) != 0)
346 keyfile = connman_storage_load_service(services[i]);
348 value = g_key_file_get_boolean(keyfile,
349 services[i], "Hidden", NULL);
350 if (value == FALSE) {
351 g_key_file_free(keyfile);
355 value = g_key_file_get_boolean(keyfile,
356 services[i], "Favorite", NULL);
357 if (value == FALSE) {
358 g_key_file_free(keyfile);
362 value = g_key_file_get_boolean(keyfile,
363 services[i], "AutoConnect", NULL);
364 if (value == FALSE) {
365 g_key_file_free(keyfile);
369 ssid = g_key_file_get_string(keyfile,
370 services[i], "SSID", NULL);
372 freq = g_key_file_get_integer(keyfile, services[i],
375 if (add_scan_param(ssid, freq, scan_data, max_ssids) < 0) {
376 str = g_key_file_get_string(keyfile,
377 services[i], "Name", NULL);
378 DBG("Cannot scan %s (%s)", ssid, str);
385 g_key_file_free(keyfile);
388 if (add_param_failed > 0)
389 connman_warn("Unable to scan %d out of %d SSIDs (max is %d)",
390 add_param_failed, num_ssids, max_ssids);
392 g_strfreev(services);
394 return num_ssids > max_ssids ? max_ssids : num_ssids;
397 static int throw_wifi_scan(struct connman_device *device,
398 GSupplicantInterfaceCallback callback)
400 struct wifi_data *wifi = connman_device_get_data(device);
403 DBG("device %p %p", device, wifi->interface);
405 if (wifi->tethering == TRUE)
408 if (connman_device_get_scanning(device) == TRUE)
411 connman_device_ref(device);
413 ret = g_supplicant_interface_scan(wifi->interface, NULL,
416 connman_device_set_scanning(device, TRUE);
418 connman_device_unref(device);
423 static void hidden_scan_callback(int result,
424 GSupplicantInterface *interface, void *user_data)
426 struct connman_device *device = user_data;
428 DBG("result %d", result);
430 connman_device_set_scanning(device, FALSE);
431 connman_device_unref(device);
434 static void autoscan_scan_callback(int result,
435 GSupplicantInterface *interface, void *user_data)
437 struct connman_device *device = user_data;
438 struct wifi_data *wifi = connman_device_get_data(device);
439 int driver_max_ssids;
441 DBG("result %d", result);
444 * Scan hidden networks so that we can autoconnect to them.
446 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
448 DBG("max ssids %d", driver_max_ssids);
450 if (driver_max_ssids > 0) {
451 GSupplicantScanParams *scan_params;
454 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
455 if (scan_params == NULL)
458 if (get_hidden_connections(driver_max_ssids,
460 ret = g_supplicant_interface_scan(wifi->interface,
462 hidden_scan_callback,
468 g_supplicant_free_scan_params(scan_params);
472 connman_device_set_scanning(device, FALSE);
473 connman_device_unref(device);
476 static gboolean autoscan_timeout(gpointer data)
478 struct connman_device *device = data;
479 struct wifi_data *wifi = connman_device_get_data(device);
480 struct autoscan_params *autoscan;
483 autoscan = wifi->autoscan;
485 if (autoscan->interval <= 0) {
486 interval = autoscan->base;
489 interval = autoscan->interval * autoscan->base;
491 if (autoscan->interval >= autoscan->limit)
492 interval = autoscan->limit;
494 throw_wifi_scan(wifi->device, autoscan_scan_callback);
497 DBG("interval %d", interval);
499 autoscan->interval = interval;
501 autoscan->timeout = g_timeout_add_seconds(interval,
502 autoscan_timeout, device);
507 static void start_autoscan(struct connman_device *device)
509 struct wifi_data *wifi = connman_device_get_data(device);
510 struct autoscan_params *autoscan;
517 autoscan = wifi->autoscan;
518 if (autoscan == NULL)
521 if (autoscan->timeout > 0 || autoscan->interval > 0)
524 connman_device_ref(device);
526 autoscan_timeout(device);
529 static struct autoscan_params *parse_autoscan_params(const char *params)
531 struct autoscan_params *autoscan;
536 DBG("Emulating autoscan");
538 list_params = g_strsplit(params, ":", 0);
539 if (list_params == 0)
542 if (g_strv_length(list_params) < 3) {
543 g_strfreev(list_params);
547 base = atoi(list_params[1]);
548 limit = atoi(list_params[2]);
550 g_strfreev(list_params);
552 autoscan = g_try_malloc0(sizeof(struct autoscan_params));
553 if (autoscan == NULL) {
554 DBG("Could not allocate memory for autoscan");
558 DBG("base %d - limit %d", base, limit);
559 autoscan->base = base;
560 autoscan->limit = limit;
565 static void setup_autoscan(struct wifi_data *wifi)
567 if (wifi->autoscan == NULL)
568 wifi->autoscan = parse_autoscan_params(AUTOSCAN_DEFAULT);
570 start_autoscan(wifi->device);
573 static void interface_create_callback(int result,
574 GSupplicantInterface *interface,
577 struct wifi_data *wifi = user_data;
579 DBG("result %d ifname %s, wifi %p", result,
580 g_supplicant_interface_get_ifname(interface),
583 if (result < 0 || wifi == NULL)
586 wifi->interface = interface;
587 g_supplicant_interface_set_data(interface, wifi);
589 if (g_supplicant_interface_get_ready(interface) == FALSE)
592 DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering);
594 if (wifi->device == NULL) {
595 connman_error("WiFi device not set");
599 connman_device_set_powered(wifi->device, TRUE);
601 if (connman_setting_get_bool("BackgroundScanning") == FALSE)
604 /* Setting up automatic scanning */
605 setup_autoscan(wifi);
608 static int wifi_enable(struct connman_device *device)
610 struct wifi_data *wifi = connman_device_get_data(device);
611 const char *interface = connman_device_get_string(device, "Interface");
612 const char *driver = connman_option_get_string("wifi");
615 DBG("device %p %p", device, wifi);
617 ret = g_supplicant_interface_create(interface, driver, NULL,
618 interface_create_callback,
626 static int wifi_disable(struct connman_device *device)
628 struct wifi_data *wifi = connman_device_get_data(device);
631 DBG("device %p", device);
633 wifi->connected = FALSE;
634 wifi->disconnecting = FALSE;
636 if (wifi->pending_network != NULL)
637 wifi->pending_network = NULL;
639 stop_autoscan(device);
641 /* In case of a user scan, device is still referenced */
642 if (connman_device_get_scanning(device) == TRUE) {
643 connman_device_set_scanning(device, FALSE);
644 connman_device_unref(wifi->device);
647 remove_networks(device, wifi);
649 ret = g_supplicant_interface_remove(wifi->interface, NULL, NULL);
656 static void hidden_free(struct hidden_params *hidden)
661 g_free(hidden->identity);
662 g_free(hidden->passphrase);
666 static void scan_callback(int result, GSupplicantInterface *interface,
669 struct connman_device *device = user_data;
670 struct wifi_data *wifi = connman_device_get_data(device);
672 DBG("result %d", result);
674 if (wifi != NULL && wifi->hidden != NULL) {
675 connman_network_clear_hidden(wifi->hidden->user_data);
676 hidden_free(wifi->hidden);
681 connman_device_reset_scanning(device);
683 connman_device_set_scanning(device, FALSE);
684 connman_device_unref(device);
686 start_autoscan(device);
689 struct last_connected {
695 static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data)
697 GTimeVal *aval = (GTimeVal *)a;
698 GTimeVal *bval = (GTimeVal *)b;
700 /* Note that the sort order is descending */
701 if (aval->tv_sec < bval->tv_sec)
704 if (aval->tv_sec > bval->tv_sec)
710 static void free_entry(gpointer data)
712 struct last_connected *entry = data;
718 static int get_latest_connections(int max_ssids,
719 GSupplicantScanParams *scan_data)
722 GSequence *latest_list;
723 struct last_connected *entry;
732 latest_list = g_sequence_new(free_entry);
733 if (latest_list == NULL)
736 services = connman_storage_get_services();
737 for (i = 0; services && services[i]; i++) {
738 if (strncmp(services[i], "wifi_", 5) != 0)
741 keyfile = connman_storage_load_service(services[i]);
743 str = g_key_file_get_string(keyfile,
744 services[i], "Favorite", 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], "AutoConnect", NULL);
755 if (str == NULL || g_strcmp0(str, "true")) {
758 g_key_file_free(keyfile);
763 str = g_key_file_get_string(keyfile,
764 services[i], "Modified", NULL);
766 g_time_val_from_iso8601(str, &modified);
770 ssid = g_key_file_get_string(keyfile,
771 services[i], "SSID", NULL);
773 freq = g_key_file_get_integer(keyfile, services[i],
776 entry = g_try_new(struct last_connected, 1);
778 g_sequence_free(latest_list);
779 g_key_file_free(keyfile);
785 entry->modified = modified;
788 g_sequence_insert_sorted(latest_list, entry,
794 g_key_file_free(keyfile);
797 g_strfreev(services);
799 num_ssids = num_ssids > max_ssids ? max_ssids : num_ssids;
801 iter = g_sequence_get_begin_iter(latest_list);
803 for (i = 0; i < num_ssids; i++) {
804 entry = g_sequence_get(iter);
806 DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq,
807 entry->modified.tv_sec);
809 add_scan_param(entry->ssid, entry->freq, scan_data, max_ssids);
811 iter = g_sequence_iter_next(iter);
814 g_sequence_free(latest_list);
818 static int wifi_scan(struct connman_device *device)
820 reset_autoscan(device);
822 return throw_wifi_scan(device, scan_callback);
825 static int wifi_scan_fast(struct connman_device *device)
827 struct wifi_data *wifi = connman_device_get_data(device);
828 GSupplicantScanParams *scan_params = NULL;
830 int driver_max_ssids = 0;
832 DBG("device %p %p", device, wifi->interface);
834 if (wifi->tethering == TRUE)
837 if (connman_device_get_scanning(device) == TRUE)
840 driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(
842 DBG("max ssids %d", driver_max_ssids);
843 if (driver_max_ssids == 0)
844 return wifi_scan(device);
846 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
847 if (scan_params == NULL)
850 ret = get_latest_connections(driver_max_ssids, scan_params);
852 g_supplicant_free_scan_params(scan_params);
853 return wifi_scan(device);
856 connman_device_ref(device);
857 reset_autoscan(device);
859 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
860 scan_callback, device);
862 connman_device_set_scanning(device, TRUE);
864 g_supplicant_free_scan_params(scan_params);
865 connman_device_unref(device);
872 * This func is only used when connecting to this specific AP first time.
873 * It is not used when system autoconnects to hidden AP.
875 static int wifi_scan_hidden(struct connman_device *device,
876 const char *ssid, unsigned int ssid_len,
877 const char *identity, const char* passphrase,
880 struct wifi_data *wifi = connman_device_get_data(device);
881 GSupplicantScanParams *scan_params = NULL;
882 struct scan_ssid *scan_ssid;
883 struct hidden_params *hidden;
886 DBG("hidden SSID %s", ssid);
888 if (wifi->tethering == TRUE || wifi->hidden != NULL)
891 if (ssid == NULL || ssid_len == 0 || ssid_len > 32)
894 if (connman_device_get_scanning(device) == TRUE)
897 scan_params = g_try_malloc0(sizeof(GSupplicantScanParams));
898 if (scan_params == NULL)
901 scan_ssid = g_try_new(struct scan_ssid, 1);
902 if (scan_ssid == NULL) {
907 memcpy(scan_ssid->ssid, ssid, ssid_len);
908 scan_ssid->ssid_len = ssid_len;
909 scan_params->ssids = g_slist_prepend(scan_params->ssids, scan_ssid);
911 scan_params->num_ssids = 1;
913 hidden = g_try_new0(struct hidden_params, 1);
914 if (hidden == NULL) {
918 memcpy(hidden->ssid, ssid, ssid_len);
919 hidden->ssid_len = ssid_len;
920 hidden->identity = g_strdup(identity);
921 hidden->passphrase = g_strdup(passphrase);
922 hidden->user_data = user_data;
923 wifi->hidden = hidden;
925 connman_device_ref(device);
927 reset_autoscan(device);
929 ret = g_supplicant_interface_scan(wifi->interface, scan_params,
930 scan_callback, device);
932 connman_device_set_scanning(device, TRUE);
934 connman_device_unref(device);
935 g_supplicant_free_scan_params(scan_params);
936 hidden_free(wifi->hidden);
943 static struct connman_device_driver wifi_ng_driver = {
945 .type = CONNMAN_DEVICE_TYPE_WIFI,
946 .priority = CONNMAN_DEVICE_PRIORITY_LOW,
948 .remove = wifi_remove,
949 .enable = wifi_enable,
950 .disable = wifi_disable,
952 .scan_fast = wifi_scan_fast,
953 .scan_hidden = wifi_scan_hidden,
956 static void system_ready(void)
960 if (connman_device_driver_register(&wifi_ng_driver) < 0)
961 connman_error("Failed to register WiFi driver");
964 static void system_killed(void)
968 connman_device_driver_unregister(&wifi_ng_driver);
971 static int network_probe(struct connman_network *network)
973 DBG("network %p", network);
978 static void network_remove(struct connman_network *network)
980 struct connman_device *device = connman_network_get_device(network);
981 struct wifi_data *wifi;
983 DBG("network %p", network);
985 wifi = connman_device_get_data(device);
989 if (wifi->network != network)
992 wifi->network = NULL;
995 static void connect_callback(int result, GSupplicantInterface *interface,
998 struct connman_network *network = user_data;
1000 DBG("network %p result %d", network, result);
1002 if (result == -ENOKEY) {
1003 connman_network_set_error(network,
1004 CONNMAN_NETWORK_ERROR_INVALID_KEY);
1005 } else if (result < 0) {
1006 connman_network_set_error(network,
1007 CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL);
1011 static GSupplicantSecurity network_security(const char *security)
1013 if (g_str_equal(security, "none") == TRUE)
1014 return G_SUPPLICANT_SECURITY_NONE;
1015 else if (g_str_equal(security, "wep") == TRUE)
1016 return G_SUPPLICANT_SECURITY_WEP;
1017 else if (g_str_equal(security, "psk") == TRUE)
1018 return G_SUPPLICANT_SECURITY_PSK;
1019 else if (g_str_equal(security, "wpa") == TRUE)
1020 return G_SUPPLICANT_SECURITY_PSK;
1021 else if (g_str_equal(security, "rsn") == TRUE)
1022 return G_SUPPLICANT_SECURITY_PSK;
1023 else if (g_str_equal(security, "ieee8021x") == TRUE)
1024 return G_SUPPLICANT_SECURITY_IEEE8021X;
1026 return G_SUPPLICANT_SECURITY_UNKNOWN;
1029 static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network)
1031 const char *security, *passphrase, *agent_passphrase;
1033 memset(ssid, 0, sizeof(*ssid));
1034 ssid->mode = G_SUPPLICANT_MODE_INFRA;
1035 ssid->ssid = connman_network_get_blob(network, "WiFi.SSID",
1037 ssid->scan_ssid = 1;
1038 security = connman_network_get_string(network, "WiFi.Security");
1039 ssid->security = network_security(security);
1040 passphrase = connman_network_get_string(network,
1042 if (passphrase == NULL || strlen(passphrase) == 0) {
1044 /* Use agent provided passphrase as a fallback */
1045 agent_passphrase = connman_network_get_string(network,
1046 "WiFi.AgentPassphrase");
1048 if (agent_passphrase == NULL || strlen(agent_passphrase) == 0)
1049 ssid->passphrase = NULL;
1051 ssid->passphrase = agent_passphrase;
1053 ssid->passphrase = passphrase;
1055 ssid->eap = connman_network_get_string(network, "WiFi.EAP");
1058 * If our private key password is unset,
1059 * we use the supplied passphrase. That is needed
1060 * for PEAP where 2 passphrases (identity and client
1061 * cert may have to be provided.
1063 if (connman_network_get_string(network,
1064 "WiFi.PrivateKeyPassphrase") == NULL)
1065 connman_network_set_string(network,
1066 "WiFi.PrivateKeyPassphrase",
1068 /* We must have an identity for both PEAP and TLS */
1069 ssid->identity = connman_network_get_string(network, "WiFi.Identity");
1071 /* Use agent provided identity as a fallback */
1072 if (ssid->identity == NULL || strlen(ssid->identity) == 0)
1073 ssid->identity = connman_network_get_string(network,
1074 "WiFi.AgentIdentity");
1076 ssid->ca_cert_path = connman_network_get_string(network,
1078 ssid->client_cert_path = connman_network_get_string(network,
1079 "WiFi.ClientCertFile");
1080 ssid->private_key_path = connman_network_get_string(network,
1081 "WiFi.PrivateKeyFile");
1082 ssid->private_key_passphrase = connman_network_get_string(network,
1083 "WiFi.PrivateKeyPassphrase");
1084 ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2");
1086 ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS");
1087 ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS");
1089 if (connman_setting_get_bool("BackgroundScanning") == TRUE)
1090 ssid->bgscan = BGSCAN_DEFAULT;
1093 static int network_connect(struct connman_network *network)
1095 struct connman_device *device = connman_network_get_device(network);
1096 struct wifi_data *wifi;
1097 GSupplicantInterface *interface;
1098 GSupplicantSSID *ssid;
1100 DBG("network %p", network);
1105 wifi = connman_device_get_data(device);
1109 ssid = g_try_malloc0(sizeof(GSupplicantSSID));
1113 interface = wifi->interface;
1115 ssid_init(ssid, network);
1117 if (wifi->disconnecting == TRUE)
1118 wifi->pending_network = network;
1120 wifi->network = network;
1123 return g_supplicant_interface_connect(interface, ssid,
1124 connect_callback, network);
1127 return -EINPROGRESS;
1130 static void disconnect_callback(int result, GSupplicantInterface *interface,
1133 struct wifi_data *wifi = user_data;
1135 if (wifi->network != NULL) {
1137 * if result < 0 supplican return an error because
1138 * the network is not current.
1139 * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it
1140 * failed, call connman_network_set_connected to report
1141 * disconnect is completed.
1144 connman_network_set_connected(wifi->network, FALSE);
1147 wifi->network = NULL;
1149 wifi->disconnecting = FALSE;
1151 if (wifi->pending_network != NULL) {
1152 network_connect(wifi->pending_network);
1153 wifi->pending_network = NULL;
1156 start_autoscan(wifi->device);
1159 static int network_disconnect(struct connman_network *network)
1161 struct connman_device *device = connman_network_get_device(network);
1162 struct wifi_data *wifi;
1165 DBG("network %p", network);
1167 wifi = connman_device_get_data(device);
1168 if (wifi == NULL || wifi->interface == NULL)
1171 connman_network_set_associating(network, FALSE);
1173 if (wifi->disconnecting == TRUE)
1176 wifi->disconnecting = TRUE;
1178 err = g_supplicant_interface_disconnect(wifi->interface,
1179 disconnect_callback, wifi);
1181 wifi->disconnecting = FALSE;
1186 static struct connman_network_driver network_driver = {
1188 .type = CONNMAN_NETWORK_TYPE_WIFI,
1189 .priority = CONNMAN_NETWORK_PRIORITY_LOW,
1190 .probe = network_probe,
1191 .remove = network_remove,
1192 .connect = network_connect,
1193 .disconnect = network_disconnect,
1196 static void interface_added(GSupplicantInterface *interface)
1198 const char *ifname = g_supplicant_interface_get_ifname(interface);
1199 const char *driver = g_supplicant_interface_get_driver(interface);
1200 struct wifi_data *wifi;
1202 wifi = g_supplicant_interface_get_data(interface);
1205 * We can get here with a NULL wifi pointer when
1206 * the interface added signal is sent before the
1207 * interface creation callback is called.
1212 DBG("ifname %s driver %s wifi %p tethering %d",
1213 ifname, driver, wifi, wifi->tethering);
1215 if (wifi->device == NULL) {
1216 connman_error("WiFi device not set");
1220 connman_device_set_powered(wifi->device, TRUE);
1222 if (wifi->tethering == TRUE)
1226 static connman_bool_t is_idle(struct wifi_data *wifi)
1228 DBG("state %d", wifi->state);
1230 switch (wifi->state) {
1231 case G_SUPPLICANT_STATE_UNKNOWN:
1232 case G_SUPPLICANT_STATE_DISCONNECTED:
1233 case G_SUPPLICANT_STATE_INACTIVE:
1234 case G_SUPPLICANT_STATE_SCANNING:
1237 case G_SUPPLICANT_STATE_AUTHENTICATING:
1238 case G_SUPPLICANT_STATE_ASSOCIATING:
1239 case G_SUPPLICANT_STATE_ASSOCIATED:
1240 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1241 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1242 case G_SUPPLICANT_STATE_COMPLETED:
1249 static connman_bool_t is_idle_wps(GSupplicantInterface *interface,
1250 struct wifi_data *wifi)
1252 /* First, let's check if WPS processing did not went wrong */
1253 if (g_supplicant_interface_get_wps_state(interface) ==
1254 G_SUPPLICANT_WPS_STATE_FAIL)
1257 /* Unlike normal connection, being associated while processing wps
1258 * actually means that we are idling. */
1259 switch (wifi->state) {
1260 case G_SUPPLICANT_STATE_UNKNOWN:
1261 case G_SUPPLICANT_STATE_DISCONNECTED:
1262 case G_SUPPLICANT_STATE_INACTIVE:
1263 case G_SUPPLICANT_STATE_SCANNING:
1264 case G_SUPPLICANT_STATE_ASSOCIATED:
1266 case G_SUPPLICANT_STATE_AUTHENTICATING:
1267 case G_SUPPLICANT_STATE_ASSOCIATING:
1268 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1269 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1270 case G_SUPPLICANT_STATE_COMPLETED:
1277 static connman_bool_t handle_wps_completion(GSupplicantInterface *interface,
1278 struct connman_network *network,
1279 struct connman_device *device,
1280 struct wifi_data *wifi)
1284 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1286 const unsigned char *ssid, *wps_ssid;
1287 unsigned int ssid_len, wps_ssid_len;
1288 const char *wps_key;
1290 /* Checking if we got associated with requested
1292 ssid = connman_network_get_blob(network, "WiFi.SSID",
1295 wps_ssid = g_supplicant_interface_get_wps_ssid(
1296 interface, &wps_ssid_len);
1298 if (wps_ssid == NULL || wps_ssid_len != ssid_len ||
1299 memcmp(ssid, wps_ssid, ssid_len) != 0) {
1300 connman_network_set_associating(network, FALSE);
1301 g_supplicant_interface_disconnect(wifi->interface,
1302 disconnect_callback, wifi);
1306 wps_key = g_supplicant_interface_get_wps_key(interface);
1307 connman_network_set_string(network, "WiFi.Passphrase",
1310 connman_network_set_string(network, "WiFi.PinWPS", NULL);
1316 static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface,
1317 struct connman_network *network,
1318 struct wifi_data *wifi)
1320 if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE)
1325 if (wifi->retries < MAXIMUM_RETRIES)
1328 connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY);
1333 static void interface_state(GSupplicantInterface *interface)
1335 struct connman_network *network;
1336 struct connman_device *device;
1337 struct wifi_data *wifi;
1338 GSupplicantState state = g_supplicant_interface_get_state(interface);
1341 wifi = g_supplicant_interface_get_data(interface);
1343 DBG("wifi %p interface state %d", wifi, state);
1348 network = wifi->network;
1349 device = wifi->device;
1351 if (device == NULL || network == NULL)
1355 case G_SUPPLICANT_STATE_SCANNING:
1358 case G_SUPPLICANT_STATE_AUTHENTICATING:
1359 case G_SUPPLICANT_STATE_ASSOCIATING:
1360 stop_autoscan(device);
1362 if (wifi->connected == FALSE)
1363 connman_network_set_associating(network, TRUE);
1367 case G_SUPPLICANT_STATE_COMPLETED:
1368 /* though it should be already stopped: */
1369 stop_autoscan(device);
1371 if (handle_wps_completion(interface, network, device, wifi) ==
1375 connman_network_set_connected(network, TRUE);
1378 case G_SUPPLICANT_STATE_DISCONNECTED:
1380 * If we're in one of the idle modes, we have
1381 * not started association yet and thus setting
1382 * those ones to FALSE could cancel an association
1385 wps = connman_network_get_bool(network, "WiFi.UseWPS");
1387 if (is_idle_wps(interface, wifi) == TRUE)
1393 /* If previous state was 4way-handshake, then
1394 * it's either: psk was incorrect and thus we retry
1395 * or if we reach the maximum retries we declare the
1397 if (handle_4way_handshake_failure(interface,
1398 network, wifi) == TRUE)
1401 /* We disable the selected network, if not then
1402 * wpa_supplicant will loop retrying */
1403 if (g_supplicant_interface_enable_selected_network(interface,
1405 DBG("Could not disables selected network");
1407 connman_network_set_connected(network, FALSE);
1408 connman_network_set_associating(network, FALSE);
1409 wifi->disconnecting = FALSE;
1411 start_autoscan(device);
1415 case G_SUPPLICANT_STATE_INACTIVE:
1416 connman_network_set_associating(network, FALSE);
1417 start_autoscan(device);
1421 case G_SUPPLICANT_STATE_UNKNOWN:
1422 case G_SUPPLICANT_STATE_ASSOCIATED:
1423 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1424 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1428 wifi->state = state;
1430 /* Saving wpa_s state policy:
1431 * If connected and if the state changes are roaming related:
1432 * --> We stay connected
1434 * --> We are connected
1436 * --> We are not connected
1439 case G_SUPPLICANT_STATE_AUTHENTICATING:
1440 case G_SUPPLICANT_STATE_ASSOCIATING:
1441 case G_SUPPLICANT_STATE_ASSOCIATED:
1442 case G_SUPPLICANT_STATE_4WAY_HANDSHAKE:
1443 case G_SUPPLICANT_STATE_GROUP_HANDSHAKE:
1444 if (wifi->connected == TRUE)
1445 connman_warn("Probably roaming right now!"
1446 " Staying connected...");
1448 wifi->connected = FALSE;
1450 case G_SUPPLICANT_STATE_COMPLETED:
1451 wifi->connected = TRUE;
1454 wifi->connected = FALSE;
1461 static void interface_removed(GSupplicantInterface *interface)
1463 const char *ifname = g_supplicant_interface_get_ifname(interface);
1464 struct wifi_data *wifi;
1466 DBG("ifname %s", ifname);
1468 wifi = g_supplicant_interface_get_data(interface);
1470 if (wifi != NULL && wifi->tethering == TRUE)
1473 if (wifi == NULL || wifi->device == NULL) {
1474 DBG("wifi interface already removed");
1478 wifi->interface = NULL;
1479 connman_device_set_powered(wifi->device, FALSE);
1482 static void scan_started(GSupplicantInterface *interface)
1487 static void scan_finished(GSupplicantInterface *interface)
1492 static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network)
1494 unsigned char strength;
1496 strength = 120 + g_supplicant_network_get_signal(supplicant_network);
1503 static void network_added(GSupplicantNetwork *supplicant_network)
1505 struct connman_network *network;
1506 GSupplicantInterface *interface;
1507 struct wifi_data *wifi;
1508 const char *name, *identifier, *security, *group, *mode;
1509 const unsigned char *ssid;
1510 unsigned int ssid_len;
1512 connman_bool_t wps_pbc;
1513 connman_bool_t wps_ready;
1514 connman_bool_t wps_advertizing;
1518 interface = g_supplicant_network_get_interface(supplicant_network);
1519 wifi = g_supplicant_interface_get_data(interface);
1520 name = g_supplicant_network_get_name(supplicant_network);
1521 identifier = g_supplicant_network_get_identifier(supplicant_network);
1522 security = g_supplicant_network_get_security(supplicant_network);
1523 group = g_supplicant_network_get_identifier(supplicant_network);
1524 wps = g_supplicant_network_get_wps(supplicant_network);
1525 wps_pbc = g_supplicant_network_is_wps_pbc(supplicant_network);
1526 wps_ready = g_supplicant_network_is_wps_active(supplicant_network);
1527 wps_advertizing = g_supplicant_network_is_wps_advertizing(
1528 supplicant_network);
1529 mode = g_supplicant_network_get_mode(supplicant_network);
1534 ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len);
1536 network = connman_device_get_network(wifi->device, identifier);
1538 if (network == NULL) {
1539 network = connman_network_create(identifier,
1540 CONNMAN_NETWORK_TYPE_WIFI);
1541 if (network == NULL)
1544 connman_network_set_index(network, wifi->index);
1546 if (connman_device_add_network(wifi->device, network) < 0) {
1547 connman_network_unref(network);
1551 wifi->networks = g_slist_append(wifi->networks, network);
1554 if (name != NULL && name[0] != '\0')
1555 connman_network_set_name(network, name);
1557 connman_network_set_blob(network, "WiFi.SSID",
1559 connman_network_set_string(network, "WiFi.Security", security);
1560 connman_network_set_strength(network,
1561 calculate_strength(supplicant_network));
1562 connman_network_set_bool(network, "WiFi.WPS", wps);
1565 /* Is AP advertizing for WPS association?
1566 * If so, we decide to use WPS by default */
1567 if (wps_ready == TRUE && wps_pbc == TRUE &&
1568 wps_advertizing == TRUE)
1569 connman_network_set_bool(network, "WiFi.UseWPS", TRUE);
1572 connman_network_set_frequency(network,
1573 g_supplicant_network_get_frequency(supplicant_network));
1575 connman_network_set_available(network, TRUE);
1576 connman_network_set_string(network, "WiFi.Mode", mode);
1579 connman_network_set_group(network, group);
1581 if (wifi->hidden != NULL && ssid != NULL) {
1582 if (wifi->hidden->ssid_len == ssid_len &&
1583 memcmp(wifi->hidden->ssid, ssid,
1585 connman_network_connect_hidden(network,
1586 wifi->hidden->identity,
1587 wifi->hidden->passphrase,
1588 wifi->hidden->user_data);
1589 wifi->hidden->user_data = NULL;
1590 hidden_free(wifi->hidden);
1591 wifi->hidden = NULL;
1596 static void network_removed(GSupplicantNetwork *network)
1598 GSupplicantInterface *interface;
1599 struct wifi_data *wifi;
1600 const char *name, *identifier;
1601 struct connman_network *connman_network;
1603 interface = g_supplicant_network_get_interface(network);
1604 wifi = g_supplicant_interface_get_data(interface);
1605 identifier = g_supplicant_network_get_identifier(network);
1606 name = g_supplicant_network_get_name(network);
1608 DBG("name %s", name);
1613 connman_network = connman_device_get_network(wifi->device, identifier);
1614 if (connman_network == NULL)
1617 wifi->networks = g_slist_remove(wifi->networks, connman_network);
1619 connman_device_remove_network(wifi->device, connman_network);
1620 connman_network_unref(connman_network);
1623 static void network_changed(GSupplicantNetwork *network, const char *property)
1625 GSupplicantInterface *interface;
1626 struct wifi_data *wifi;
1627 const char *name, *identifier;
1628 struct connman_network *connman_network;
1630 interface = g_supplicant_network_get_interface(network);
1631 wifi = g_supplicant_interface_get_data(interface);
1632 identifier = g_supplicant_network_get_identifier(network);
1633 name = g_supplicant_network_get_name(network);
1635 DBG("name %s", name);
1640 connman_network = connman_device_get_network(wifi->device, identifier);
1641 if (connman_network == NULL)
1644 if (g_str_equal(property, "Signal") == TRUE) {
1645 connman_network_set_strength(connman_network,
1646 calculate_strength(network));
1647 connman_network_update(connman_network);
1651 static void debug(const char *str)
1653 if (getenv("CONNMAN_SUPPLICANT_DEBUG"))
1654 connman_debug("%s", str);
1657 static const GSupplicantCallbacks callbacks = {
1658 .system_ready = system_ready,
1659 .system_killed = system_killed,
1660 .interface_added = interface_added,
1661 .interface_state = interface_state,
1662 .interface_removed = interface_removed,
1663 .scan_started = scan_started,
1664 .scan_finished = scan_finished,
1665 .network_added = network_added,
1666 .network_removed = network_removed,
1667 .network_changed = network_changed,
1672 static int tech_probe(struct connman_technology *technology)
1674 wifi_technology = technology;
1679 static void tech_remove(struct connman_technology *technology)
1681 wifi_technology = NULL;
1684 struct wifi_tethering_info {
1685 struct wifi_data *wifi;
1686 struct connman_technology *technology;
1688 GSupplicantSSID *ssid;
1691 static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase)
1693 GSupplicantSSID *ap;
1695 ap = g_try_malloc0(sizeof(GSupplicantSSID));
1699 ap->mode = G_SUPPLICANT_MODE_MASTER;
1701 ap->ssid_len = strlen(ssid);
1705 if (passphrase == NULL || strlen(passphrase) == 0) {
1706 ap->security = G_SUPPLICANT_SECURITY_NONE;
1707 ap->passphrase = NULL;
1709 ap->security = G_SUPPLICANT_SECURITY_PSK;
1710 ap->protocol = G_SUPPLICANT_PROTO_RSN;
1711 ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP;
1712 ap->group_cipher = G_SUPPLICANT_GROUP_CCMP;
1713 ap->passphrase = passphrase;
1719 static void ap_start_callback(int result, GSupplicantInterface *interface,
1722 struct wifi_tethering_info *info = user_data;
1724 DBG("result %d index %d bridge %s",
1725 result, info->wifi->index, info->wifi->bridge);
1728 connman_inet_remove_from_bridge(info->wifi->index,
1729 info->wifi->bridge);
1730 connman_technology_tethering_notify(info->technology, FALSE);
1733 g_free(info->ifname);
1737 static void ap_create_callback(int result,
1738 GSupplicantInterface *interface,
1741 struct wifi_tethering_info *info = user_data;
1743 DBG("result %d ifname %s", result,
1744 g_supplicant_interface_get_ifname(interface));
1747 connman_inet_remove_from_bridge(info->wifi->index,
1748 info->wifi->bridge);
1749 connman_technology_tethering_notify(info->technology, FALSE);
1751 g_free(info->ifname);
1756 info->wifi->interface = interface;
1757 g_supplicant_interface_set_data(interface, info->wifi);
1759 if (g_supplicant_interface_set_apscan(interface, 2) < 0)
1760 connman_error("Failed to set interface ap_scan property");
1762 g_supplicant_interface_connect(interface, info->ssid,
1763 ap_start_callback, info);
1766 static void sta_remove_callback(int result,
1767 GSupplicantInterface *interface,
1770 struct wifi_tethering_info *info = user_data;
1771 const char *driver = connman_option_get_string("wifi");
1773 DBG("ifname %s result %d ", info->ifname, result);
1776 info->wifi->tethering = TRUE;
1778 g_free(info->ifname);
1783 info->wifi->interface = NULL;
1785 connman_technology_tethering_notify(info->technology, TRUE);
1787 g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge,
1792 static int tech_set_tethering(struct connman_technology *technology,
1793 const char *identifier, const char *passphrase,
1794 const char *bridge, connman_bool_t enabled)
1797 GSupplicantInterface *interface;
1798 struct wifi_data *wifi;
1799 struct wifi_tethering_info *info;
1806 if (enabled == FALSE) {
1807 for (list = iface_list; list; list = list->next) {
1810 if (wifi->tethering == TRUE) {
1811 wifi->tethering = FALSE;
1813 connman_inet_remove_from_bridge(wifi->index,
1815 wifi->bridged = FALSE;
1819 connman_technology_tethering_notify(technology, FALSE);
1824 for (list = iface_list; list; list = list->next) {
1827 interface = wifi->interface;
1829 if (interface == NULL)
1832 ifname = g_supplicant_interface_get_ifname(wifi->interface);
1834 mode = g_supplicant_interface_get_mode(interface);
1835 if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) {
1836 DBG("%s does not support AP mode", ifname);
1840 info = g_try_malloc0(sizeof(struct wifi_tethering_info));
1845 info->technology = technology;
1846 info->wifi->bridge = bridge;
1847 info->ssid = ssid_ap_init(identifier, passphrase);
1848 if (info->ssid == NULL) {
1852 info->ifname = g_strdup(ifname);
1853 if (info->ifname == NULL) {
1858 info->wifi->tethering = TRUE;
1860 err = g_supplicant_interface_remove(interface,
1861 sta_remove_callback,
1870 static void regdom_callback(void *user_data)
1872 char *alpha2 = user_data;
1876 if (wifi_technology == NULL)
1879 connman_technology_regdom_notify(wifi_technology, alpha2);
1882 static int tech_set_regdom(struct connman_technology *technology, const char *alpha2)
1884 return g_supplicant_set_country(alpha2, regdom_callback, alpha2);
1887 static struct connman_technology_driver tech_driver = {
1889 .type = CONNMAN_SERVICE_TYPE_WIFI,
1890 .probe = tech_probe,
1891 .remove = tech_remove,
1892 .set_tethering = tech_set_tethering,
1893 .set_regdom = tech_set_regdom,
1896 static int wifi_init(void)
1900 err = connman_network_driver_register(&network_driver);
1904 err = g_supplicant_register(&callbacks);
1906 connman_network_driver_unregister(&network_driver);
1910 err = connman_technology_driver_register(&tech_driver);
1912 g_supplicant_unregister(&callbacks);
1913 connman_network_driver_unregister(&network_driver);
1920 static void wifi_exit(void)
1924 connman_technology_driver_unregister(&tech_driver);
1926 g_supplicant_unregister(&callbacks);
1928 connman_network_driver_unregister(&network_driver);
1931 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
1932 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)