| /* |
| * |
| * Connection Manager |
| * |
| * Copyright (C) 2007-2012 Intel Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <sys/ioctl.h> |
| #include <sys/socket.h> |
| #include <linux/if_arp.h> |
| #include <linux/wireless.h> |
| #include <net/ethernet.h> |
| |
| #ifndef IFF_LOWER_UP |
| #define IFF_LOWER_UP 0x10000 |
| #endif |
| |
| #include <dbus/dbus.h> |
| #include <glib.h> |
| |
| #define CONNMAN_API_SUBJECT_TO_CHANGE |
| #include <connman/plugin.h> |
| #include <connman/inet.h> |
| #include <connman/device.h> |
| #include <connman/rtnl.h> |
| #include <connman/technology.h> |
| #include <connman/service.h> |
| #include <connman/log.h> |
| #include <connman/option.h> |
| #include <connman/storage.h> |
| #include <include/setting.h> |
| #include <connman/provision.h> |
| |
| #include <gsupplicant/gsupplicant.h> |
| |
| #define CLEANUP_TIMEOUT 8 /* in seconds */ |
| #define INACTIVE_TIMEOUT 12 /* in seconds */ |
| #define MAXIMUM_RETRIES 2 |
| #define FAVORITE_MAXIMUM_RETRIES 4 |
| |
| #define BGSCAN_DEFAULT "simple:30:-45:300" |
| #define AUTOSCAN_DEFAULT "exponential:3:300" |
| |
| static struct connman_technology *wifi_technology = NULL; |
| |
| struct hidden_params { |
| char ssid[32]; |
| unsigned int ssid_len; |
| char *identity; |
| char *passphrase; |
| GSupplicantScanParams *scan_params; |
| gpointer user_data; |
| }; |
| |
| /** |
| * Used for autoscan "emulation". |
| * Should be removed when wpa_s autoscan support will be by default. |
| */ |
| struct autoscan_params { |
| int base; |
| int limit; |
| int interval; |
| unsigned int timeout; |
| }; |
| |
| struct wifi_data { |
| char *identifier; |
| struct connman_device *device; |
| struct connman_network *network; |
| struct connman_network *pending_network; |
| GSList *networks; |
| GSupplicantInterface *interface; |
| GSupplicantState state; |
| connman_bool_t connected; |
| connman_bool_t disconnecting; |
| connman_bool_t tethering; |
| connman_bool_t bridged; |
| const char *bridge; |
| int index; |
| unsigned flags; |
| unsigned int watch; |
| int retries; |
| struct hidden_params *hidden; |
| connman_bool_t postpone_hidden; |
| |
| /** |
| * autoscan "emulation". |
| */ |
| struct autoscan_params *autoscan; |
| |
| GSupplicantScanParams *scan_params; |
| }; |
| |
| static GList *iface_list = NULL; |
| |
| static void start_autoscan(struct connman_device *device); |
| |
| static void handle_tethering(struct wifi_data *wifi) |
| { |
| if (wifi->tethering == FALSE) |
| return; |
| |
| if (wifi->bridge == NULL) |
| return; |
| |
| if (wifi->bridged == TRUE) |
| return; |
| |
| DBG("index %d bridge %s", wifi->index, wifi->bridge); |
| |
| if (connman_inet_add_to_bridge(wifi->index, wifi->bridge) < 0) |
| return; |
| |
| wifi->bridged = TRUE; |
| } |
| |
| static void wifi_newlink(unsigned flags, unsigned change, void *user_data) |
| { |
| struct connman_device *device = user_data; |
| struct wifi_data *wifi = connman_device_get_data(device); |
| |
| if (wifi == NULL) |
| return; |
| |
| DBG("index %d flags %d change %d", wifi->index, flags, change); |
| |
| if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) { |
| if (flags & IFF_UP) |
| DBG("interface up"); |
| else |
| DBG("interface down"); |
| } |
| |
| if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) { |
| if (flags & IFF_LOWER_UP) { |
| DBG("carrier on"); |
| |
| handle_tethering(wifi); |
| } else |
| DBG("carrier off"); |
| } |
| |
| wifi->flags = flags; |
| } |
| |
| static int wifi_probe(struct connman_device *device) |
| { |
| struct wifi_data *wifi; |
| |
| DBG("device %p", device); |
| |
| wifi = g_try_new0(struct wifi_data, 1); |
| if (wifi == NULL) |
| return -ENOMEM; |
| |
| wifi->connected = FALSE; |
| wifi->disconnecting = FALSE; |
| wifi->tethering = FALSE; |
| wifi->bridged = FALSE; |
| wifi->bridge = NULL; |
| wifi->state = G_SUPPLICANT_STATE_INACTIVE; |
| |
| connman_device_set_data(device, wifi); |
| wifi->device = connman_device_ref(device); |
| |
| wifi->index = connman_device_get_index(device); |
| wifi->flags = 0; |
| |
| wifi->watch = connman_rtnl_add_newlink_watch(wifi->index, |
| wifi_newlink, device); |
| |
| iface_list = g_list_append(iface_list, wifi); |
| |
| return 0; |
| } |
| |
| static void remove_networks(struct connman_device *device, |
| struct wifi_data *wifi) |
| { |
| GSList *list; |
| |
| for (list = wifi->networks; list != NULL; list = list->next) { |
| struct connman_network *network = list->data; |
| |
| connman_device_remove_network(device, network); |
| connman_network_unref(network); |
| } |
| |
| g_slist_free(wifi->networks); |
| wifi->networks = NULL; |
| } |
| |
| static void reset_autoscan(struct connman_device *device) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| struct autoscan_params *autoscan; |
| |
| DBG(""); |
| |
| if (wifi == NULL || wifi->autoscan == NULL) |
| return; |
| |
| autoscan = wifi->autoscan; |
| |
| if (autoscan->timeout == 0 && autoscan->interval == 0) |
| return; |
| |
| g_source_remove(autoscan->timeout); |
| |
| autoscan->timeout = 0; |
| autoscan->interval = 0; |
| |
| connman_device_unref(device); |
| } |
| |
| static void stop_autoscan(struct connman_device *device) |
| { |
| const struct wifi_data *wifi = connman_device_get_data(device); |
| |
| /* |
| * This is a proposed fix for upstream issue MEEGO-25987 |
| * <https://bugs.meego.com/show_bug.cgi?id=25987>. If this |
| * becomes a final fix, simply remove this comment. Otherwise, |
| * replace this with the final upstream fix. |
| * |
| * If autoscan isn't active, then don't bother doing anything. |
| */ |
| |
| if (wifi == NULL || wifi->autoscan == NULL) |
| return; |
| |
| reset_autoscan(device); |
| |
| connman_device_set_scanning(device, FALSE); |
| } |
| |
| static void wifi_remove(struct connman_device *device) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| |
| DBG("device %p wifi %p", device, wifi); |
| |
| if (wifi == NULL) |
| return; |
| |
| iface_list = g_list_remove(iface_list, wifi); |
| |
| remove_networks(device, wifi); |
| |
| connman_device_set_powered(device, FALSE); |
| connman_device_set_data(device, NULL); |
| connman_device_unref(wifi->device); |
| connman_rtnl_remove_watch(wifi->watch); |
| |
| g_supplicant_interface_set_data(wifi->interface, NULL); |
| |
| if (wifi->scan_params != NULL) |
| g_supplicant_free_scan_params(wifi->scan_params); |
| |
| g_free(wifi->autoscan); |
| g_free(wifi->identifier); |
| g_free(wifi); |
| } |
| |
| static gboolean is_duplicate(GSList *list, gchar *ssid, int ssid_len) |
| { |
| GSList *iter; |
| |
| for (iter = list; iter != NULL; iter = g_slist_next(iter)) { |
| struct scan_ssid *scan_ssid = iter->data; |
| |
| if (ssid_len == scan_ssid->ssid_len && |
| memcmp(ssid, scan_ssid->ssid, ssid_len) == 0) |
| return TRUE; |
| } |
| |
| return FALSE; |
| } |
| |
| static int add_scan_param(gchar *hex_ssid, char *raw_ssid, int ssid_len, |
| int freq, GSupplicantScanParams *scan_data, |
| int driver_max_scan_ssids, char *ssid_name) |
| { |
| unsigned int i; |
| struct scan_ssid *scan_ssid; |
| |
| if ((driver_max_scan_ssids == 0 || |
| driver_max_scan_ssids > scan_data->num_ssids) && |
| (hex_ssid != NULL || raw_ssid != NULL)) { |
| gchar *ssid; |
| unsigned int j = 0, hex; |
| |
| if (hex_ssid != NULL) { |
| size_t hex_ssid_len = strlen(hex_ssid); |
| |
| ssid = g_try_malloc0(hex_ssid_len / 2); |
| if (ssid == NULL) |
| return -ENOMEM; |
| |
| for (i = 0; i < hex_ssid_len; i += 2) { |
| sscanf(hex_ssid + i, "%02x", &hex); |
| ssid[j++] = hex; |
| } |
| } else { |
| ssid = raw_ssid; |
| j = ssid_len; |
| } |
| |
| /* |
| * If we have already added hidden AP to the list, |
| * then do not do it again. This might happen if you have |
| * used or are using multiple wifi cards, so in that case |
| * you might have multiple service files for same AP. |
| */ |
| if (is_duplicate(scan_data->ssids, ssid, j) == TRUE) |
| return 0; |
| |
| scan_ssid = g_try_new(struct scan_ssid, 1); |
| if (scan_ssid == NULL) { |
| g_free(ssid); |
| return -ENOMEM; |
| } |
| |
| memcpy(scan_ssid->ssid, ssid, j); |
| scan_ssid->ssid_len = j; |
| scan_data->ssids = g_slist_prepend(scan_data->ssids, |
| scan_ssid); |
| |
| scan_data->num_ssids++; |
| |
| DBG("SSID %s added to scanned list of %d entries", ssid_name, |
| scan_data->num_ssids); |
| |
| if (hex_ssid != NULL) |
| g_free(ssid); |
| } else |
| return -EINVAL; |
| |
| scan_data->ssids = g_slist_reverse(scan_data->ssids); |
| |
| if (scan_data->freqs == NULL) { |
| scan_data->freqs = g_try_malloc0(sizeof(uint16_t)); |
| if (scan_data->freqs == NULL) { |
| g_slist_free_full(scan_data->ssids, g_free); |
| return -ENOMEM; |
| } |
| |
| scan_data->num_freqs = 1; |
| scan_data->freqs[0] = freq; |
| } else { |
| connman_bool_t duplicate = FALSE; |
| |
| /* Don't add duplicate entries */ |
| for (i = 0; i < scan_data->num_freqs; i++) { |
| if (scan_data->freqs[i] == freq) { |
| duplicate = TRUE; |
| break; |
| } |
| } |
| |
| if (duplicate == FALSE) { |
| scan_data->num_freqs++; |
| scan_data->freqs = g_try_realloc(scan_data->freqs, |
| sizeof(uint16_t) * scan_data->num_freqs); |
| if (scan_data->freqs == NULL) { |
| g_slist_free_full(scan_data->ssids, g_free); |
| return -ENOMEM; |
| } |
| scan_data->freqs[scan_data->num_freqs - 1] = freq; |
| } |
| } |
| |
| return 1; |
| } |
| |
| static int get_hidden_connections(GSupplicantScanParams *scan_data) |
| { |
| struct connman_config_entry **entries; |
| GKeyFile *keyfile; |
| gchar **services; |
| char *ssid, *name; |
| int i, freq, ret; |
| gboolean value; |
| int num_ssids = 0, add_param_failed = 0; |
| |
| services = connman_storage_get_services(); |
| for (i = 0; services && services[i]; i++) { |
| if (strncmp(services[i], "wifi_", 5) != 0) |
| continue; |
| |
| keyfile = connman_storage_load_service(services[i]); |
| if (keyfile == NULL) |
| continue; |
| |
| value = g_key_file_get_boolean(keyfile, |
| services[i], "Hidden", NULL); |
| if (value == FALSE) { |
| g_key_file_free(keyfile); |
| continue; |
| } |
| |
| value = g_key_file_get_boolean(keyfile, |
| services[i], "Favorite", NULL); |
| if (value == FALSE) { |
| g_key_file_free(keyfile); |
| continue; |
| } |
| |
| ssid = g_key_file_get_string(keyfile, |
| services[i], "SSID", NULL); |
| |
| freq = g_key_file_get_integer(keyfile, services[i], |
| "Frequency", NULL); |
| |
| name = g_key_file_get_string(keyfile, services[i], "Name", |
| NULL); |
| |
| ret = add_scan_param(ssid, NULL, 0, freq, scan_data, 0, name); |
| if (ret < 0) |
| add_param_failed++; |
| else if (ret > 0) |
| num_ssids++; |
| |
| g_free(ssid); |
| g_free(name); |
| g_key_file_free(keyfile); |
| } |
| |
| /* |
| * Check if there are any hidden AP that needs to be provisioned. |
| */ |
| entries = connman_config_get_entries(); |
| for (i = 0; entries && entries[i]; i++) { |
| int len; |
| |
| if (entries[i]->hidden == FALSE) |
| continue; |
| |
| if (entries[i]->ssid == NULL) { |
| ssid = entries[i]->name; |
| len = strlen(ssid); |
| } else { |
| ssid = entries[i]->ssid; |
| len = entries[i]->ssid_len; |
| } |
| |
| if (ssid == NULL) |
| continue; |
| |
| ret = add_scan_param(NULL, ssid, len, 0, scan_data, 0, ssid); |
| if (ret < 0) |
| add_param_failed++; |
| else if (ret > 0) |
| num_ssids++; |
| } |
| |
| connman_config_free_entries(entries); |
| |
| if (add_param_failed > 0) |
| DBG("Unable to scan %d out of %d SSIDs", |
| add_param_failed, num_ssids); |
| |
| g_strfreev(services); |
| |
| return num_ssids; |
| } |
| |
| static int get_hidden_connections_params(struct wifi_data *wifi, |
| GSupplicantScanParams *scan_params) |
| { |
| int driver_max_ssids, i; |
| GSupplicantScanParams *orig_params; |
| |
| /* |
| * Scan hidden networks so that we can autoconnect to them. |
| * We will assume 1 as a default number of ssid to scan. |
| */ |
| driver_max_ssids = g_supplicant_interface_get_max_scan_ssids( |
| wifi->interface); |
| if (driver_max_ssids == 0) |
| driver_max_ssids = 1; |
| |
| DBG("max ssids %d", driver_max_ssids); |
| |
| if (wifi->scan_params == NULL) { |
| wifi->scan_params = g_try_malloc0(sizeof(GSupplicantScanParams)); |
| if (wifi->scan_params == NULL) |
| return 0; |
| |
| if (get_hidden_connections(wifi->scan_params) == 0) { |
| g_supplicant_free_scan_params(wifi->scan_params); |
| wifi->scan_params = NULL; |
| |
| return 0; |
| } |
| } |
| |
| orig_params = wifi->scan_params; |
| |
| /* Let's transfer driver_max_ssids params */ |
| for (i = 0; i < driver_max_ssids; i++) { |
| struct scan_ssid *ssid; |
| |
| if (wifi->scan_params->ssids == NULL) |
| break; |
| |
| ssid = orig_params->ssids->data; |
| orig_params->ssids = g_slist_remove(orig_params->ssids, ssid); |
| scan_params->ssids = g_slist_prepend(scan_params->ssids, ssid); |
| } |
| |
| if (i > 0) { |
| scan_params->num_ssids = i; |
| scan_params->ssids = g_slist_reverse(scan_params->ssids); |
| |
| scan_params->freqs = g_memdup(orig_params->freqs, |
| sizeof(uint16_t) * orig_params->num_freqs); |
| if (scan_params->freqs == NULL) |
| goto err; |
| |
| scan_params->num_freqs = orig_params->num_freqs; |
| |
| } else |
| goto err; |
| |
| orig_params->num_ssids -= scan_params->num_ssids; |
| |
| return scan_params->num_ssids; |
| |
| err: |
| g_slist_free_full(scan_params->ssids, g_free); |
| g_supplicant_free_scan_params(wifi->scan_params); |
| wifi->scan_params = NULL; |
| |
| return 0; |
| } |
| |
| static int throw_wifi_scan(struct connman_device *device, |
| GSupplicantInterfaceCallback callback) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| int ret; |
| |
| if (wifi == NULL) |
| return -ENODEV; |
| |
| DBG("device %p %p", device, wifi->interface); |
| |
| if (wifi->tethering == TRUE) |
| return -EBUSY; |
| |
| if (connman_device_get_scanning(device) == TRUE) |
| return -EALREADY; |
| |
| connman_device_ref(device); |
| |
| ret = g_supplicant_interface_scan(wifi->interface, NULL, |
| callback, device); |
| if (ret == 0) |
| connman_device_set_scanning(device, TRUE); |
| else |
| connman_device_unref(device); |
| |
| return ret; |
| } |
| |
| static void hidden_free(struct hidden_params *hidden) |
| { |
| if (hidden == NULL) |
| return; |
| |
| if (hidden->scan_params) |
| g_supplicant_free_scan_params(hidden->scan_params); |
| |
| g_free(hidden->identity); |
| g_free(hidden->passphrase); |
| g_free(hidden); |
| } |
| |
| static void scan_callback(int result, GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct connman_device *device = user_data; |
| struct wifi_data *wifi = connman_device_get_data(device); |
| connman_bool_t scanning; |
| |
| DBG("result %d wifi %p", result, wifi); |
| |
| if (wifi != NULL) { |
| if ((wifi->hidden != NULL) && !wifi->postpone_hidden) { |
| connman_network_clear_hidden(wifi->hidden->user_data); |
| hidden_free(wifi->hidden); |
| wifi->hidden = NULL; |
| } |
| |
| if (wifi->scan_params != NULL) { |
| g_supplicant_free_scan_params(wifi->scan_params); |
| wifi->scan_params = NULL; |
| } |
| } |
| |
| if (result < 0) |
| connman_device_reset_scanning(device); |
| |
| |
| /* User is connecting to a hidden AP, let's wait for finished event */ |
| if (wifi && wifi->hidden && wifi->postpone_hidden) { |
| GSupplicantScanParams *scan_params; |
| int ret; |
| |
| wifi->postpone_hidden = FALSE; |
| scan_params = wifi->hidden->scan_params; |
| wifi->hidden->scan_params = NULL; |
| |
| reset_autoscan(device); |
| |
| ret = g_supplicant_interface_scan(wifi->interface, scan_params, |
| scan_callback, device); |
| if (ret == 0) |
| return; |
| |
| /* On error, let's recall scan_callback, which will cleanup */ |
| return scan_callback(ret, interface, user_data); |
| } |
| |
| scanning = connman_device_get_scanning(device); |
| |
| if (scanning == TRUE) |
| connman_device_set_scanning(device, FALSE); |
| |
| if (result != -ENOLINK) |
| start_autoscan(device); |
| |
| /* |
| * If we are here then we were scanning; however, if we are |
| * also mid-flight disabling the interface, then wifi_disable |
| * has already cleared the device scanning state and |
| * unreferenced the device, obviating the need to do it here. |
| */ |
| |
| if (scanning == TRUE) |
| connman_device_unref(device); |
| } |
| |
| static void scan_callback_hidden(int result, |
| GSupplicantInterface *interface, void *user_data) |
| { |
| struct connman_device *device = user_data; |
| struct wifi_data *wifi = connman_device_get_data(device); |
| GSupplicantScanParams *scan_params; |
| int ret; |
| |
| DBG("result %d wifi %p", result, wifi); |
| |
| if (wifi == NULL) |
| goto out; |
| |
| /* User is trying to connect to a hidden AP */ |
| if (wifi->hidden && wifi->postpone_hidden) |
| goto out; |
| |
| |
| scan_params = g_try_malloc0(sizeof(GSupplicantScanParams)); |
| if (scan_params == NULL) |
| goto out; |
| |
| if (get_hidden_connections_params(wifi, scan_params) > 0) { |
| ret = g_supplicant_interface_scan(wifi->interface, |
| scan_params, |
| scan_callback_hidden, |
| device); |
| if (ret == 0) |
| return; |
| } |
| |
| g_supplicant_free_scan_params(scan_params); |
| |
| out: |
| scan_callback(result, interface, user_data); |
| } |
| |
| static gboolean autoscan_timeout(gpointer data) |
| { |
| struct connman_device *device = data; |
| struct wifi_data *wifi = connman_device_get_data(device); |
| struct autoscan_params *autoscan; |
| int interval; |
| |
| if (wifi == NULL) |
| return FALSE; |
| |
| autoscan = wifi->autoscan; |
| |
| if (autoscan->interval <= 0) { |
| interval = autoscan->base; |
| goto set_interval; |
| } else |
| interval = autoscan->interval * autoscan->base; |
| |
| if (autoscan->interval >= autoscan->limit) |
| interval = autoscan->limit; |
| |
| throw_wifi_scan(wifi->device, scan_callback_hidden); |
| |
| set_interval: |
| DBG("interval %d", interval); |
| |
| autoscan->interval = interval; |
| |
| autoscan->timeout = g_timeout_add_seconds(interval, |
| autoscan_timeout, device); |
| |
| return FALSE; |
| } |
| |
| static void start_autoscan(struct connman_device *device) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| struct autoscan_params *autoscan; |
| |
| DBG(""); |
| |
| if (wifi == NULL) |
| return; |
| |
| autoscan = wifi->autoscan; |
| if (autoscan == NULL) |
| return; |
| |
| if (autoscan->timeout > 0 || autoscan->interval > 0) |
| return; |
| |
| connman_device_ref(device); |
| |
| autoscan_timeout(device); |
| } |
| |
| static struct autoscan_params *parse_autoscan_params(const char *params) |
| { |
| struct autoscan_params *autoscan; |
| char **list_params; |
| int limit; |
| int base; |
| |
| DBG("Emulating autoscan"); |
| |
| list_params = g_strsplit(params, ":", 0); |
| if (list_params == 0) |
| return NULL; |
| |
| if (g_strv_length(list_params) < 3) { |
| g_strfreev(list_params); |
| return NULL; |
| } |
| |
| base = atoi(list_params[1]); |
| limit = atoi(list_params[2]); |
| |
| g_strfreev(list_params); |
| |
| autoscan = g_try_malloc0(sizeof(struct autoscan_params)); |
| if (autoscan == NULL) { |
| DBG("Could not allocate memory for autoscan"); |
| return NULL; |
| } |
| |
| DBG("base %d - limit %d", base, limit); |
| autoscan->base = base; |
| autoscan->limit = limit; |
| |
| return autoscan; |
| } |
| |
| static void setup_autoscan(struct wifi_data *wifi) |
| { |
| if (wifi->autoscan == NULL) |
| wifi->autoscan = parse_autoscan_params(AUTOSCAN_DEFAULT); |
| |
| start_autoscan(wifi->device); |
| } |
| |
| static void interface_autoscan_callback(int result, |
| GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct wifi_data *wifi = user_data; |
| |
| if (result < 0) { |
| DBG("Could not enable Autoscan, falling back..."); |
| setup_autoscan(wifi); |
| } |
| } |
| |
| static void interface_create_callback(int result, |
| GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct wifi_data *wifi = user_data; |
| |
| DBG("result %d ifname %s, wifi %p", result, |
| g_supplicant_interface_get_ifname(interface), |
| wifi); |
| |
| if (result < 0 || wifi == NULL) |
| return; |
| |
| wifi->interface = interface; |
| g_supplicant_interface_set_data(interface, wifi); |
| |
| if (g_supplicant_interface_get_ready(interface) == FALSE) |
| return; |
| |
| DBG("interface is ready wifi %p tethering %d", wifi, wifi->tethering); |
| |
| if (wifi->device == NULL) { |
| connman_error("WiFi device not set"); |
| return; |
| } |
| |
| connman_device_set_powered(wifi->device, TRUE); |
| |
| if (connman_setting_get_bool("BackgroundScanning") == FALSE) |
| return; |
| |
| /* Setting up automatic scanning */ |
| if (g_supplicant_interface_autoscan(interface, AUTOSCAN_DEFAULT, |
| interface_autoscan_callback, wifi) < 0) { |
| DBG("Could not enable Autoscan, falling back..."); |
| setup_autoscan(wifi); |
| } |
| } |
| |
| static int wifi_enable(struct connman_device *device) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| const char *interface = connman_device_get_string(device, "Interface"); |
| const char *driver = connman_option_get_string("wifi"); |
| int ret; |
| |
| DBG("device %p %p", device, wifi); |
| |
| if (wifi == NULL) |
| return -ENODEV; |
| |
| ret = g_supplicant_interface_create(interface, driver, NULL, |
| interface_create_callback, |
| wifi); |
| if (ret < 0) |
| return ret; |
| |
| return -EINPROGRESS; |
| } |
| |
| static int wifi_disable(struct connman_device *device) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| int ret; |
| |
| DBG("device %p wifi %p", device, wifi); |
| |
| if (wifi == NULL) |
| return -ENODEV; |
| |
| wifi->connected = FALSE; |
| wifi->disconnecting = FALSE; |
| |
| if (wifi->pending_network != NULL) |
| wifi->pending_network = NULL; |
| |
| stop_autoscan(device); |
| |
| /* In case of a user scan, device is still referenced */ |
| if (connman_device_get_scanning(device) == TRUE) { |
| connman_device_set_scanning(device, FALSE); |
| connman_device_unref(wifi->device); |
| } |
| |
| remove_networks(device, wifi); |
| |
| ret = g_supplicant_interface_remove(wifi->interface, NULL, NULL); |
| if (ret < 0) |
| return ret; |
| |
| return -EINPROGRESS; |
| } |
| |
| struct last_connected { |
| GTimeVal modified; |
| gchar *ssid; |
| int freq; |
| }; |
| |
| static gint sort_entry(gconstpointer a, gconstpointer b, gpointer user_data) |
| { |
| GTimeVal *aval = (GTimeVal *)a; |
| GTimeVal *bval = (GTimeVal *)b; |
| |
| /* Note that the sort order is descending */ |
| if (aval->tv_sec < bval->tv_sec) |
| return 1; |
| |
| if (aval->tv_sec > bval->tv_sec) |
| return -1; |
| |
| return 0; |
| } |
| |
| static void free_entry(gpointer data) |
| { |
| struct last_connected *entry = data; |
| |
| g_free(entry->ssid); |
| g_free(entry); |
| } |
| |
| static int get_latest_connections(int max_ssids, |
| GSupplicantScanParams *scan_data) |
| { |
| GSequenceIter *iter; |
| GSequence *latest_list; |
| struct last_connected *entry; |
| GKeyFile *keyfile; |
| GTimeVal modified; |
| gchar **services; |
| gchar *str; |
| char *ssid; |
| int i, freq; |
| int num_ssids = 0; |
| |
| latest_list = g_sequence_new(free_entry); |
| if (latest_list == NULL) |
| return -ENOMEM; |
| |
| services = connman_storage_get_services(); |
| for (i = 0; services && services[i]; i++) { |
| if (strncmp(services[i], "wifi_", 5) != 0) |
| continue; |
| |
| keyfile = connman_storage_load_service(services[i]); |
| if (keyfile == NULL) |
| continue; |
| |
| str = g_key_file_get_string(keyfile, |
| services[i], "Favorite", NULL); |
| if (str == NULL || g_strcmp0(str, "true")) { |
| if (str) |
| g_free(str); |
| g_key_file_free(keyfile); |
| continue; |
| } |
| g_free(str); |
| |
| str = g_key_file_get_string(keyfile, |
| services[i], "AutoConnect", NULL); |
| if (str == NULL || g_strcmp0(str, "true")) { |
| if (str) |
| g_free(str); |
| g_key_file_free(keyfile); |
| continue; |
| } |
| g_free(str); |
| |
| str = g_key_file_get_string(keyfile, |
| services[i], "Modified", NULL); |
| if (str != NULL) { |
| g_time_val_from_iso8601(str, &modified); |
| g_free(str); |
| } |
| |
| ssid = g_key_file_get_string(keyfile, |
| services[i], "SSID", NULL); |
| |
| freq = g_key_file_get_integer(keyfile, services[i], |
| "Frequency", NULL); |
| if (freq) { |
| entry = g_try_new(struct last_connected, 1); |
| if (entry == NULL) { |
| g_sequence_free(latest_list); |
| g_key_file_free(keyfile); |
| g_free(ssid); |
| return -ENOMEM; |
| } |
| |
| entry->ssid = ssid; |
| entry->modified = modified; |
| entry->freq = freq; |
| |
| g_sequence_insert_sorted(latest_list, entry, |
| sort_entry, NULL); |
| num_ssids++; |
| } else |
| g_free(ssid); |
| |
| g_key_file_free(keyfile); |
| } |
| |
| g_strfreev(services); |
| |
| num_ssids = num_ssids > max_ssids ? max_ssids : num_ssids; |
| |
| iter = g_sequence_get_begin_iter(latest_list); |
| |
| for (i = 0; i < num_ssids; i++) { |
| entry = g_sequence_get(iter); |
| |
| DBG("ssid %s freq %d modified %lu", entry->ssid, entry->freq, |
| entry->modified.tv_sec); |
| |
| add_scan_param(entry->ssid, NULL, 0, entry->freq, scan_data, |
| max_ssids, entry->ssid); |
| |
| iter = g_sequence_iter_next(iter); |
| } |
| |
| g_sequence_free(latest_list); |
| return num_ssids; |
| } |
| |
| static int wifi_scan_simple(struct connman_device *device) |
| { |
| reset_autoscan(device); |
| |
| return throw_wifi_scan(device, scan_callback_hidden); |
| } |
| |
| /* |
| * Note that the hidden scan is only used when connecting to this specific |
| * hidden AP first time. It is not used when system autoconnects to hidden AP. |
| */ |
| static int wifi_scan(struct connman_device *device, |
| const char *ssid, unsigned int ssid_len, |
| const char *identity, const char* passphrase, |
| gpointer user_data) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| GSupplicantScanParams *scan_params = NULL; |
| struct scan_ssid *scan_ssid; |
| struct hidden_params *hidden; |
| int ret; |
| int driver_max_ssids = 0; |
| connman_bool_t do_hidden; |
| connman_bool_t scanning; |
| |
| if (wifi == NULL) |
| return -ENODEV; |
| |
| DBG("device %p wifi %p hidden ssid %s", device, wifi->interface, ssid); |
| |
| if (wifi->tethering == TRUE) |
| return 0; |
| |
| scanning = connman_device_get_scanning(device); |
| |
| if (ssid == NULL || ssid_len == 0 || ssid_len > 32) { |
| if (scanning) |
| return -EALREADY; |
| |
| driver_max_ssids = g_supplicant_interface_get_max_scan_ssids(wifi->interface); |
| DBG("max ssids %d", driver_max_ssids); |
| if (driver_max_ssids == 0) |
| return wifi_scan_simple(device); |
| |
| do_hidden = FALSE; |
| } else { |
| if (scanning && wifi->hidden && wifi->postpone_hidden) |
| return -EALREADY; |
| |
| do_hidden = TRUE; |
| } |
| |
| scan_params = g_try_malloc0(sizeof(GSupplicantScanParams)); |
| if (scan_params == NULL) |
| return -ENOMEM; |
| |
| if (do_hidden == TRUE) { |
| scan_ssid = g_try_new(struct scan_ssid, 1); |
| if (scan_ssid == NULL) { |
| g_free(scan_params); |
| return -ENOMEM; |
| } |
| |
| memcpy(scan_ssid->ssid, ssid, ssid_len); |
| scan_ssid->ssid_len = ssid_len; |
| scan_params->ssids = g_slist_prepend(scan_params->ssids, |
| scan_ssid); |
| scan_params->num_ssids = 1; |
| |
| hidden = g_try_new0(struct hidden_params, 1); |
| if (hidden == NULL) { |
| g_supplicant_free_scan_params(scan_params); |
| return -ENOMEM; |
| } |
| |
| if (wifi->hidden) { |
| hidden_free(wifi->hidden); |
| wifi->hidden = NULL; |
| } |
| |
| |
| memcpy(hidden->ssid, ssid, ssid_len); |
| hidden->ssid_len = ssid_len; |
| hidden->identity = g_strdup(identity); |
| hidden->passphrase = g_strdup(passphrase); |
| hidden->user_data = user_data; |
| wifi->hidden = hidden; |
| |
| |
| if (scanning) { |
| /* Let's keep this active scan for later, |
| * when current scan will be over. */ |
| wifi->postpone_hidden = TRUE; |
| hidden->scan_params = scan_params; |
| |
| return 0; |
| } |
| |
| } else if (wifi->connected) { |
| g_supplicant_free_scan_params(scan_params); |
| return wifi_scan_simple(device); |
| } else { |
| ret = get_latest_connections(driver_max_ssids, scan_params); |
| if (ret <= 0) { |
| g_supplicant_free_scan_params(scan_params); |
| return wifi_scan_simple(device); |
| } |
| } |
| |
| connman_device_ref(device); |
| |
| reset_autoscan(device); |
| |
| ret = g_supplicant_interface_scan(wifi->interface, scan_params, |
| scan_callback, device); |
| if (ret == 0) |
| connman_device_set_scanning(device, TRUE); |
| else { |
| g_supplicant_free_scan_params(scan_params); |
| connman_device_unref(device); |
| |
| if (do_hidden == TRUE) { |
| hidden_free(wifi->hidden); |
| wifi->hidden = NULL; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static void wifi_regdom_callback(int result, |
| const char *alpha2, |
| void *user_data) |
| { |
| struct connman_device *device = user_data; |
| |
| connman_device_regdom_notify(device, result, alpha2); |
| |
| connman_device_unref(device); |
| } |
| |
| static int wifi_set_regdom(struct connman_device *device, const char *alpha2) |
| { |
| struct wifi_data *wifi = connman_device_get_data(device); |
| int ret; |
| |
| if (wifi == NULL) |
| return -EINVAL; |
| |
| connman_device_ref(device); |
| |
| ret = g_supplicant_interface_set_country(wifi->interface, |
| wifi_regdom_callback, |
| alpha2, device); |
| if (ret != 0) |
| connman_device_unref(device); |
| |
| return ret; |
| } |
| |
| static struct connman_device_driver wifi_ng_driver = { |
| .name = "wifi", |
| .type = CONNMAN_DEVICE_TYPE_WIFI, |
| .priority = CONNMAN_DEVICE_PRIORITY_LOW, |
| .probe = wifi_probe, |
| .remove = wifi_remove, |
| .enable = wifi_enable, |
| .disable = wifi_disable, |
| .scan = wifi_scan, |
| .set_regdom = wifi_set_regdom, |
| }; |
| |
| static void system_ready(void) |
| { |
| DBG(""); |
| |
| if (connman_device_driver_register(&wifi_ng_driver) < 0) |
| connman_error("Failed to register WiFi driver"); |
| } |
| |
| static void system_killed(void) |
| { |
| DBG(""); |
| |
| connman_device_driver_unregister(&wifi_ng_driver); |
| } |
| |
| static int network_probe(struct connman_network *network) |
| { |
| DBG("network %p", network); |
| |
| return 0; |
| } |
| |
| static void network_remove(struct connman_network *network) |
| { |
| struct connman_device *device = connman_network_get_device(network); |
| struct wifi_data *wifi; |
| |
| DBG("network %p", network); |
| |
| wifi = connman_device_get_data(device); |
| if (wifi == NULL) |
| return; |
| |
| if (wifi->network != network) |
| return; |
| |
| wifi->network = NULL; |
| } |
| |
| static void connect_callback(int result, GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct connman_network *network = user_data; |
| |
| DBG("network %p result %d", network, result); |
| |
| if (result == -ENOKEY) { |
| connman_network_set_error(network, |
| CONNMAN_NETWORK_ERROR_INVALID_KEY); |
| } else if (result < 0) { |
| connman_network_set_error(network, |
| CONNMAN_NETWORK_ERROR_CONFIGURE_FAIL); |
| } |
| } |
| |
| static GSupplicantSecurity network_security(const char *security) |
| { |
| if (g_str_equal(security, "none") == TRUE) |
| return G_SUPPLICANT_SECURITY_NONE; |
| else if (g_str_equal(security, "wep") == TRUE) |
| return G_SUPPLICANT_SECURITY_WEP; |
| else if (g_str_equal(security, "psk") == TRUE) |
| return G_SUPPLICANT_SECURITY_PSK; |
| else if (g_str_equal(security, "wpa") == TRUE) |
| return G_SUPPLICANT_SECURITY_PSK; |
| else if (g_str_equal(security, "rsn") == TRUE) |
| return G_SUPPLICANT_SECURITY_PSK; |
| else if (g_str_equal(security, "ieee8021x") == TRUE) |
| return G_SUPPLICANT_SECURITY_IEEE8021X; |
| |
| return G_SUPPLICANT_SECURITY_UNKNOWN; |
| } |
| |
| static void ssid_init(GSupplicantSSID *ssid, struct connman_network *network) |
| { |
| const char *security, *passphrase, *agent_passphrase; |
| |
| memset(ssid, 0, sizeof(*ssid)); |
| ssid->mode = G_SUPPLICANT_MODE_INFRA; |
| ssid->ssid = connman_network_get_blob(network, "WiFi.SSID", |
| &ssid->ssid_len); |
| ssid->scan_ssid = 1; |
| security = connman_network_get_string(network, "WiFi.Security"); |
| ssid->security = network_security(security); |
| passphrase = connman_network_get_string(network, |
| "WiFi.Passphrase"); |
| if (passphrase == NULL || strlen(passphrase) == 0) { |
| |
| /* Use agent provided passphrase as a fallback */ |
| agent_passphrase = connman_network_get_string(network, |
| "WiFi.AgentPassphrase"); |
| |
| if (agent_passphrase == NULL || strlen(agent_passphrase) == 0) |
| ssid->passphrase = NULL; |
| else |
| ssid->passphrase = agent_passphrase; |
| } else |
| ssid->passphrase = passphrase; |
| |
| ssid->eap = connman_network_get_string(network, "WiFi.EAP"); |
| |
| /* |
| * If our private key password is unset, |
| * we use the supplied passphrase. That is needed |
| * for PEAP where 2 passphrases (identity and client |
| * cert may have to be provided. |
| */ |
| if (connman_network_get_string(network, |
| "WiFi.PrivateKeyPassphrase") == NULL) |
| connman_network_set_string(network, |
| "WiFi.PrivateKeyPassphrase", |
| ssid->passphrase); |
| /* We must have an identity for both PEAP and TLS */ |
| ssid->identity = connman_network_get_string(network, "WiFi.Identity"); |
| |
| /* Use agent provided identity as a fallback */ |
| if (ssid->identity == NULL || strlen(ssid->identity) == 0) |
| ssid->identity = connman_network_get_string(network, |
| "WiFi.AgentIdentity"); |
| |
| ssid->ca_cert_path = connman_network_get_string(network, |
| "WiFi.CACertFile"); |
| ssid->client_cert_path = connman_network_get_string(network, |
| "WiFi.ClientCertFile"); |
| ssid->private_key_path = connman_network_get_string(network, |
| "WiFi.PrivateKeyFile"); |
| ssid->private_key_passphrase = connman_network_get_string(network, |
| "WiFi.PrivateKeyPassphrase"); |
| ssid->phase2_auth = connman_network_get_string(network, "WiFi.Phase2"); |
| |
| ssid->use_wps = connman_network_get_bool(network, "WiFi.UseWPS"); |
| ssid->pin_wps = connman_network_get_string(network, "WiFi.PinWPS"); |
| |
| if (connman_setting_get_bool("BackgroundScanning") == TRUE) |
| ssid->bgscan = BGSCAN_DEFAULT; |
| } |
| |
| static int network_connect(struct connman_network *network) |
| { |
| struct connman_device *device = connman_network_get_device(network); |
| struct wifi_data *wifi; |
| GSupplicantInterface *interface; |
| GSupplicantSSID *ssid; |
| |
| DBG("network %p", network); |
| |
| if (device == NULL) |
| return -ENODEV; |
| |
| wifi = connman_device_get_data(device); |
| if (wifi == NULL) |
| return -ENODEV; |
| |
| ssid = g_try_malloc0(sizeof(GSupplicantSSID)); |
| if (ssid == NULL) |
| return -ENOMEM; |
| |
| interface = wifi->interface; |
| |
| ssid_init(ssid, network); |
| |
| if (wifi->disconnecting == TRUE) { |
| wifi->pending_network = network; |
| g_free(ssid); |
| |
| } else { |
| wifi->network = network; |
| wifi->retries = 0; |
| |
| return g_supplicant_interface_connect(interface, ssid, |
| connect_callback, network); |
| } |
| |
| return -EINPROGRESS; |
| } |
| |
| static void disconnect_callback(int result, GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct wifi_data *wifi = user_data; |
| |
| DBG("result %d supplicant interface %p wifi %p", |
| result, interface, wifi); |
| |
| if (result == -ECONNABORTED) { |
| DBG("wifi interface no longer available"); |
| return; |
| } |
| |
| if (wifi->network != NULL) { |
| /* |
| * if result < 0 supplican return an error because |
| * the network is not current. |
| * we wont receive G_SUPPLICANT_STATE_DISCONNECTED since it |
| * failed, call connman_network_set_connected to report |
| * disconnect is completed. |
| */ |
| if (result < 0) |
| connman_network_set_connected(wifi->network, FALSE); |
| } |
| |
| wifi->network = NULL; |
| |
| wifi->disconnecting = FALSE; |
| |
| if (wifi->pending_network != NULL) { |
| network_connect(wifi->pending_network); |
| wifi->pending_network = NULL; |
| } |
| |
| start_autoscan(wifi->device); |
| } |
| |
| static int network_disconnect(struct connman_network *network, connman_bool_t user_initiated) |
| { |
| struct connman_device *device = connman_network_get_device(network); |
| struct wifi_data *wifi; |
| int err; |
| |
| DBG("network %p", network); |
| |
| wifi = connman_device_get_data(device); |
| if (wifi == NULL || wifi->interface == NULL) |
| return -ENODEV; |
| |
| connman_network_set_associating(network, FALSE); |
| |
| if (wifi->disconnecting == TRUE) |
| return -EALREADY; |
| |
| wifi->disconnecting = TRUE; |
| |
| err = g_supplicant_interface_disconnect(wifi->interface, |
| disconnect_callback, wifi); |
| if (err < 0) |
| wifi->disconnecting = FALSE; |
| |
| return err; |
| } |
| |
| static struct connman_network_driver network_driver = { |
| .name = "wifi", |
| .type = CONNMAN_NETWORK_TYPE_WIFI, |
| .priority = CONNMAN_NETWORK_PRIORITY_LOW, |
| .probe = network_probe, |
| .remove = network_remove, |
| .connect = network_connect, |
| .disconnect = network_disconnect, |
| }; |
| |
| static void interface_added(GSupplicantInterface *interface) |
| { |
| const char *ifname = g_supplicant_interface_get_ifname(interface); |
| const char *driver = g_supplicant_interface_get_driver(interface); |
| struct wifi_data *wifi; |
| |
| wifi = g_supplicant_interface_get_data(interface); |
| |
| /* |
| * We can get here with a NULL wifi pointer when |
| * the interface added signal is sent before the |
| * interface creation callback is called. |
| */ |
| if (wifi == NULL) |
| return; |
| |
| DBG("ifname %s driver %s wifi %p tethering %d", |
| ifname, driver, wifi, wifi->tethering); |
| |
| if (wifi->device == NULL) { |
| connman_error("WiFi device not set"); |
| return; |
| } |
| |
| connman_device_set_powered(wifi->device, TRUE); |
| |
| if (wifi->tethering == TRUE) |
| return; |
| } |
| |
| static connman_bool_t is_idle(struct wifi_data *wifi) |
| { |
| DBG("state %d", wifi->state); |
| |
| switch (wifi->state) { |
| case G_SUPPLICANT_STATE_UNKNOWN: |
| case G_SUPPLICANT_STATE_DISABLED: |
| case G_SUPPLICANT_STATE_DISCONNECTED: |
| case G_SUPPLICANT_STATE_INACTIVE: |
| case G_SUPPLICANT_STATE_SCANNING: |
| return TRUE; |
| |
| case G_SUPPLICANT_STATE_AUTHENTICATING: |
| case G_SUPPLICANT_STATE_ASSOCIATING: |
| case G_SUPPLICANT_STATE_ASSOCIATED: |
| case G_SUPPLICANT_STATE_4WAY_HANDSHAKE: |
| case G_SUPPLICANT_STATE_GROUP_HANDSHAKE: |
| case G_SUPPLICANT_STATE_COMPLETED: |
| return FALSE; |
| } |
| |
| return FALSE; |
| } |
| |
| static connman_bool_t is_idle_wps(GSupplicantInterface *interface, |
| struct wifi_data *wifi) |
| { |
| /* First, let's check if WPS processing did not went wrong */ |
| if (g_supplicant_interface_get_wps_state(interface) == |
| G_SUPPLICANT_WPS_STATE_FAIL) |
| return FALSE; |
| |
| /* Unlike normal connection, being associated while processing wps |
| * actually means that we are idling. */ |
| switch (wifi->state) { |
| case G_SUPPLICANT_STATE_UNKNOWN: |
| case G_SUPPLICANT_STATE_DISABLED: |
| case G_SUPPLICANT_STATE_DISCONNECTED: |
| case G_SUPPLICANT_STATE_INACTIVE: |
| case G_SUPPLICANT_STATE_SCANNING: |
| case G_SUPPLICANT_STATE_ASSOCIATED: |
| return TRUE; |
| case G_SUPPLICANT_STATE_AUTHENTICATING: |
| case G_SUPPLICANT_STATE_ASSOCIATING: |
| case G_SUPPLICANT_STATE_4WAY_HANDSHAKE: |
| case G_SUPPLICANT_STATE_GROUP_HANDSHAKE: |
| case G_SUPPLICANT_STATE_COMPLETED: |
| return FALSE; |
| } |
| |
| return FALSE; |
| } |
| |
| static connman_bool_t handle_wps_completion(GSupplicantInterface *interface, |
| struct connman_network *network, |
| struct connman_device *device, |
| struct wifi_data *wifi) |
| { |
| connman_bool_t wps; |
| |
| wps = connman_network_get_bool(network, "WiFi.UseWPS"); |
| if (wps == TRUE) { |
| const unsigned char *ssid, *wps_ssid; |
| unsigned int ssid_len, wps_ssid_len; |
| const char *wps_key; |
| |
| /* Checking if we got associated with requested |
| * network */ |
| ssid = connman_network_get_blob(network, "WiFi.SSID", |
| &ssid_len); |
| |
| wps_ssid = g_supplicant_interface_get_wps_ssid( |
| interface, &wps_ssid_len); |
| |
| if (wps_ssid == NULL || wps_ssid_len != ssid_len || |
| memcmp(ssid, wps_ssid, ssid_len) != 0) { |
| connman_network_set_associating(network, FALSE); |
| g_supplicant_interface_disconnect(wifi->interface, |
| disconnect_callback, wifi); |
| return FALSE; |
| } |
| |
| wps_key = g_supplicant_interface_get_wps_key(interface); |
| connman_network_set_string(network, "WiFi.Passphrase", |
| wps_key); |
| |
| connman_network_set_string(network, "WiFi.PinWPS", NULL); |
| } |
| |
| return TRUE; |
| } |
| |
| static connman_bool_t handle_4way_handshake_failure(GSupplicantInterface *interface, |
| struct connman_network *network, |
| struct wifi_data *wifi) |
| { |
| struct connman_service *service; |
| |
| if (wifi->state != G_SUPPLICANT_STATE_4WAY_HANDSHAKE) |
| return FALSE; |
| |
| service = connman_service_lookup_from_network(network); |
| if (service == NULL) |
| return FALSE; |
| |
| wifi->retries++; |
| |
| if (connman_service_get_favorite(service) == TRUE) { |
| if (wifi->retries < FAVORITE_MAXIMUM_RETRIES) |
| return TRUE; |
| } else if (wifi->retries < MAXIMUM_RETRIES) |
| return TRUE; |
| |
| connman_network_set_error(network, CONNMAN_NETWORK_ERROR_INVALID_KEY); |
| |
| return FALSE; |
| } |
| |
| static void interface_state(GSupplicantInterface *interface) |
| { |
| struct connman_network *network; |
| struct connman_device *device; |
| struct wifi_data *wifi; |
| GSupplicantState state = g_supplicant_interface_get_state(interface); |
| connman_bool_t wps; |
| |
| wifi = g_supplicant_interface_get_data(interface); |
| |
| DBG("wifi %p interface state %d", wifi, state); |
| |
| if (wifi == NULL) |
| return; |
| |
| network = wifi->network; |
| device = wifi->device; |
| |
| if (device == NULL || network == NULL) |
| return; |
| |
| switch (state) { |
| case G_SUPPLICANT_STATE_SCANNING: |
| break; |
| |
| case G_SUPPLICANT_STATE_AUTHENTICATING: |
| case G_SUPPLICANT_STATE_ASSOCIATING: |
| stop_autoscan(device); |
| |
| if (wifi->connected == FALSE) |
| connman_network_set_associating(network, TRUE); |
| |
| break; |
| |
| case G_SUPPLICANT_STATE_COMPLETED: |
| /* though it should be already stopped: */ |
| stop_autoscan(device); |
| |
| if (handle_wps_completion(interface, network, device, wifi) == |
| FALSE) |
| break; |
| |
| connman_network_set_connected(network, TRUE); |
| break; |
| |
| case G_SUPPLICANT_STATE_DISCONNECTED: |
| /* |
| * If we're in one of the idle modes, we have |
| * not started association yet and thus setting |
| * those ones to FALSE could cancel an association |
| * in progress. |
| */ |
| wps = connman_network_get_bool(network, "WiFi.UseWPS"); |
| if (wps == TRUE) |
| if (is_idle_wps(interface, wifi) == TRUE) |
| break; |
| |
| if (is_idle(wifi)) |
| break; |
| |
| /* If previous state was 4way-handshake, then |
| * it's either: psk was incorrect and thus we retry |
| * or if we reach the maximum retries we declare the |
| * psk as wrong */ |
| if (handle_4way_handshake_failure(interface, |
| network, wifi) == TRUE) |
| break; |
| |
| /* We disable the selected network, if not then |
| * wpa_supplicant will loop retrying */ |
| if (g_supplicant_interface_enable_selected_network(interface, |
| FALSE) != 0) |
| DBG("Could not disables selected network"); |
| |
| connman_network_set_connected(network, FALSE); |
| connman_network_set_associating(network, FALSE); |
| wifi->disconnecting = FALSE; |
| |
| start_autoscan(device); |
| |
| break; |
| |
| case G_SUPPLICANT_STATE_INACTIVE: |
| connman_network_set_associating(network, FALSE); |
| start_autoscan(device); |
| |
| break; |
| |
| case G_SUPPLICANT_STATE_UNKNOWN: |
| case G_SUPPLICANT_STATE_DISABLED: |
| case G_SUPPLICANT_STATE_ASSOCIATED: |
| case G_SUPPLICANT_STATE_4WAY_HANDSHAKE: |
| case G_SUPPLICANT_STATE_GROUP_HANDSHAKE: |
| break; |
| } |
| |
| wifi->state = state; |
| |
| /* Saving wpa_s state policy: |
| * If connected and if the state changes are roaming related: |
| * --> We stay connected |
| * If completed |
| * --> We are connected |
| * All other case: |
| * --> We are not connected |
| * */ |
| switch (state) { |
| case G_SUPPLICANT_STATE_AUTHENTICATING: |
| case G_SUPPLICANT_STATE_ASSOCIATING: |
| case G_SUPPLICANT_STATE_ASSOCIATED: |
| case G_SUPPLICANT_STATE_4WAY_HANDSHAKE: |
| case G_SUPPLICANT_STATE_GROUP_HANDSHAKE: |
| if (wifi->connected == TRUE) |
| connman_warn("Probably roaming right now!" |
| " Staying connected..."); |
| else |
| wifi->connected = FALSE; |
| break; |
| case G_SUPPLICANT_STATE_COMPLETED: |
| wifi->connected = TRUE; |
| break; |
| default: |
| wifi->connected = FALSE; |
| break; |
| } |
| |
| DBG("DONE"); |
| } |
| |
| static void interface_removed(GSupplicantInterface *interface) |
| { |
| const char *ifname = g_supplicant_interface_get_ifname(interface); |
| struct wifi_data *wifi; |
| |
| DBG("ifname %s", ifname); |
| |
| wifi = g_supplicant_interface_get_data(interface); |
| |
| if (wifi != NULL && wifi->tethering == TRUE) |
| return; |
| |
| if (wifi == NULL || wifi->device == NULL) { |
| DBG("wifi interface already removed"); |
| return; |
| } |
| |
| wifi->interface = NULL; |
| connman_device_set_powered(wifi->device, FALSE); |
| } |
| |
| static void scan_started(GSupplicantInterface *interface) |
| { |
| DBG(""); |
| } |
| |
| static void scan_finished(GSupplicantInterface *interface) |
| { |
| DBG(""); |
| } |
| |
| static unsigned char calculate_strength(GSupplicantNetwork *supplicant_network) |
| { |
| unsigned char strength; |
| |
| strength = 120 + g_supplicant_network_get_signal(supplicant_network); |
| if (strength > 100) |
| strength = 100; |
| |
| return strength; |
| } |
| |
| static void network_added(GSupplicantNetwork *supplicant_network) |
| { |
| struct connman_network *network; |
| GSupplicantInterface *interface; |
| struct wifi_data *wifi; |
| const char *name, *identifier, *security, *group, *mode; |
| const unsigned char *ssid; |
| unsigned int ssid_len; |
| connman_bool_t wps; |
| connman_bool_t wps_pbc; |
| connman_bool_t wps_ready; |
| connman_bool_t wps_advertizing; |
| |
| DBG(""); |
| |
| interface = g_supplicant_network_get_interface(supplicant_network); |
| wifi = g_supplicant_interface_get_data(interface); |
| name = g_supplicant_network_get_name(supplicant_network); |
| identifier = g_supplicant_network_get_identifier(supplicant_network); |
| security = g_supplicant_network_get_security(supplicant_network); |
| group = g_supplicant_network_get_identifier(supplicant_network); |
| wps = g_supplicant_network_get_wps(supplicant_network); |
| wps_pbc = g_supplicant_network_is_wps_pbc(supplicant_network); |
| wps_ready = g_supplicant_network_is_wps_active(supplicant_network); |
| wps_advertizing = g_supplicant_network_is_wps_advertizing( |
| supplicant_network); |
| mode = g_supplicant_network_get_mode(supplicant_network); |
| |
| if (wifi == NULL) |
| return; |
| |
| ssid = g_supplicant_network_get_ssid(supplicant_network, &ssid_len); |
| |
| network = connman_device_get_network(wifi->device, identifier); |
| |
| if (network == NULL) { |
| network = connman_network_create(identifier, |
| CONNMAN_NETWORK_TYPE_WIFI); |
| if (network == NULL) |
| return; |
| |
| connman_network_set_index(network, wifi->index); |
| |
| if (connman_device_add_network(wifi->device, network) < 0) { |
| connman_network_unref(network); |
| return; |
| } |
| |
| wifi->networks = g_slist_prepend(wifi->networks, network); |
| } |
| |
| if (name != NULL && name[0] != '\0') |
| connman_network_set_name(network, name); |
| |
| connman_network_set_blob(network, "WiFi.SSID", |
| ssid, ssid_len); |
| connman_network_set_string(network, "WiFi.Security", security); |
| connman_network_set_strength(network, |
| calculate_strength(supplicant_network)); |
| connman_network_set_bool(network, "WiFi.WPS", wps); |
| |
| if (wps == TRUE) { |
| /* Is AP advertizing for WPS association? |
| * If so, we decide to use WPS by default */ |
| if (wps_ready == TRUE && wps_pbc == TRUE && |
| wps_advertizing == TRUE) |
| connman_network_set_bool(network, "WiFi.UseWPS", TRUE); |
| } |
| |
| connman_network_set_frequency(network, |
| g_supplicant_network_get_frequency(supplicant_network)); |
| |
| connman_network_set_available(network, TRUE); |
| connman_network_set_string(network, "WiFi.Mode", mode); |
| |
| if (ssid != NULL) |
| connman_network_set_group(network, group); |
| |
| if (wifi->hidden != NULL && ssid != NULL) { |
| if (wifi->hidden->ssid_len == ssid_len && |
| memcmp(wifi->hidden->ssid, ssid, |
| ssid_len) == 0) { |
| connman_network_connect_hidden(network, |
| wifi->hidden->identity, |
| wifi->hidden->passphrase, |
| wifi->hidden->user_data); |
| wifi->hidden->user_data = NULL; |
| hidden_free(wifi->hidden); |
| wifi->hidden = NULL; |
| } |
| } |
| } |
| |
| static void network_removed(GSupplicantNetwork *network) |
| { |
| GSupplicantInterface *interface; |
| struct wifi_data *wifi; |
| const char *name, *identifier; |
| struct connman_network *connman_network; |
| |
| interface = g_supplicant_network_get_interface(network); |
| wifi = g_supplicant_interface_get_data(interface); |
| identifier = g_supplicant_network_get_identifier(network); |
| name = g_supplicant_network_get_name(network); |
| |
| DBG("name %s", name); |
| |
| if (wifi == NULL) |
| return; |
| |
| if (wifi->device == NULL) |
| return; |
| |
| connman_network = connman_device_get_network(wifi->device, identifier); |
| if (connman_network == NULL) |
| return; |
| |
| wifi->networks = g_slist_remove(wifi->networks, connman_network); |
| |
| connman_device_remove_network(wifi->device, connman_network); |
| connman_network_unref(connman_network); |
| } |
| |
| static void network_changed(GSupplicantNetwork *network, const char *property) |
| { |
| GSupplicantInterface *interface; |
| struct wifi_data *wifi; |
| const char *name, *identifier; |
| struct connman_network *connman_network; |
| |
| interface = g_supplicant_network_get_interface(network); |
| wifi = g_supplicant_interface_get_data(interface); |
| identifier = g_supplicant_network_get_identifier(network); |
| name = g_supplicant_network_get_name(network); |
| |
| DBG("name %s", name); |
| |
| if (wifi == NULL) |
| return; |
| |
| connman_network = connman_device_get_network(wifi->device, identifier); |
| if (connman_network == NULL) |
| return; |
| |
| if (g_str_equal(property, "Signal") == TRUE) { |
| connman_network_set_strength(connman_network, |
| calculate_strength(network)); |
| connman_network_update(connman_network); |
| } |
| } |
| |
| static void debug(const char *str) |
| { |
| if (getenv("CONNMAN_SUPPLICANT_DEBUG")) |
| connman_debug("%s", str); |
| } |
| |
| static const GSupplicantCallbacks callbacks = { |
| .system_ready = system_ready, |
| .system_killed = system_killed, |
| .interface_added = interface_added, |
| .interface_state = interface_state, |
| .interface_removed = interface_removed, |
| .scan_started = scan_started, |
| .scan_finished = scan_finished, |
| .network_added = network_added, |
| .network_removed = network_removed, |
| .network_changed = network_changed, |
| .debug = debug, |
| }; |
| |
| |
| static int tech_probe(struct connman_technology *technology) |
| { |
| wifi_technology = technology; |
| |
| return 0; |
| } |
| |
| static void tech_remove(struct connman_technology *technology) |
| { |
| wifi_technology = NULL; |
| } |
| |
| struct wifi_tethering_info { |
| struct wifi_data *wifi; |
| struct connman_technology *technology; |
| char *ifname; |
| GSupplicantSSID *ssid; |
| }; |
| |
| static GSupplicantSSID *ssid_ap_init(const char *ssid, const char *passphrase) |
| { |
| GSupplicantSSID *ap; |
| |
| ap = g_try_malloc0(sizeof(GSupplicantSSID)); |
| if (ap == NULL) |
| return NULL; |
| |
| ap->mode = G_SUPPLICANT_MODE_MASTER; |
| ap->ssid = ssid; |
| ap->ssid_len = strlen(ssid); |
| ap->scan_ssid = 0; |
| ap->freq = 2412; |
| |
| if (passphrase == NULL || strlen(passphrase) == 0) { |
| ap->security = G_SUPPLICANT_SECURITY_NONE; |
| ap->passphrase = NULL; |
| } else { |
| ap->security = G_SUPPLICANT_SECURITY_PSK; |
| ap->protocol = G_SUPPLICANT_PROTO_RSN; |
| ap->pairwise_cipher = G_SUPPLICANT_PAIRWISE_CCMP; |
| ap->group_cipher = G_SUPPLICANT_GROUP_CCMP; |
| ap->passphrase = passphrase; |
| } |
| |
| return ap; |
| } |
| |
| static void ap_start_callback(int result, GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct wifi_tethering_info *info = user_data; |
| |
| DBG("result %d index %d bridge %s", |
| result, info->wifi->index, info->wifi->bridge); |
| |
| if (result < 0) { |
| connman_inet_remove_from_bridge(info->wifi->index, |
| info->wifi->bridge); |
| connman_technology_tethering_notify(info->technology, FALSE); |
| } |
| |
| g_free(info->ifname); |
| g_free(info); |
| } |
| |
| static void ap_create_callback(int result, |
| GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct wifi_tethering_info *info = user_data; |
| |
| DBG("result %d ifname %s", result, |
| g_supplicant_interface_get_ifname(interface)); |
| |
| if (result < 0) { |
| connman_inet_remove_from_bridge(info->wifi->index, |
| info->wifi->bridge); |
| connman_technology_tethering_notify(info->technology, FALSE); |
| |
| g_free(info->ifname); |
| g_free(info); |
| return; |
| } |
| |
| info->wifi->interface = interface; |
| g_supplicant_interface_set_data(interface, info->wifi); |
| |
| if (g_supplicant_interface_set_apscan(interface, 2) < 0) |
| connman_error("Failed to set interface ap_scan property"); |
| |
| g_supplicant_interface_connect(interface, info->ssid, |
| ap_start_callback, info); |
| } |
| |
| static void sta_remove_callback(int result, |
| GSupplicantInterface *interface, |
| void *user_data) |
| { |
| struct wifi_tethering_info *info = user_data; |
| const char *driver = connman_option_get_string("wifi"); |
| |
| DBG("ifname %s result %d ", info->ifname, result); |
| |
| if (result < 0) { |
| info->wifi->tethering = TRUE; |
| |
| g_free(info->ifname); |
| g_free(info); |
| return; |
| } |
| |
| info->wifi->interface = NULL; |
| |
| connman_technology_tethering_notify(info->technology, TRUE); |
| |
| g_supplicant_interface_create(info->ifname, driver, info->wifi->bridge, |
| ap_create_callback, |
| info); |
| } |
| |
| static int tech_set_tethering(struct connman_technology *technology, |
| const char *identifier, const char *passphrase, |
| const char *bridge, connman_bool_t enabled) |
| { |
| GList *list; |
| GSupplicantInterface *interface; |
| struct wifi_data *wifi; |
| struct wifi_tethering_info *info; |
| const char *ifname; |
| unsigned int mode; |
| int err; |
| |
| DBG(""); |
| |
| if (enabled == FALSE) { |
| for (list = iface_list; list; list = list->next) { |
| wifi = list->data; |
| |
| if (wifi->tethering == TRUE) { |
| wifi->tethering = FALSE; |
| |
| connman_inet_remove_from_bridge(wifi->index, |
| bridge); |
| wifi->bridged = FALSE; |
| } |
| } |
| |
| connman_technology_tethering_notify(technology, FALSE); |
| |
| return 0; |
| } |
| |
| for (list = iface_list; list; list = list->next) { |
| wifi = list->data; |
| |
| interface = wifi->interface; |
| |
| if (interface == NULL) |
| continue; |
| |
| ifname = g_supplicant_interface_get_ifname(wifi->interface); |
| |
| mode = g_supplicant_interface_get_mode(interface); |
| if ((mode & G_SUPPLICANT_CAPABILITY_MODE_AP) == 0) { |
| DBG("%s does not support AP mode", ifname); |
| continue; |
| } |
| |
| info = g_try_malloc0(sizeof(struct wifi_tethering_info)); |
| if (info == NULL) |
| return -ENOMEM; |
| |
| info->wifi = wifi; |
| info->technology = technology; |
| info->wifi->bridge = bridge; |
| info->ssid = ssid_ap_init(identifier, passphrase); |
| if (info->ssid == NULL) { |
| g_free(info); |
| continue; |
| } |
| info->ifname = g_strdup(ifname); |
| if (info->ifname == NULL) { |
| g_free(info); |
| continue; |
| } |
| |
| info->wifi->tethering = TRUE; |
| |
| err = g_supplicant_interface_remove(interface, |
| sta_remove_callback, |
| info); |
| if (err == 0) |
| return err; |
| } |
| |
| return -EOPNOTSUPP; |
| } |
| |
| static void regdom_callback(int result, const char *alpha2, void *user_data) |
| { |
| DBG(""); |
| |
| if (wifi_technology == NULL) |
| return; |
| |
| if (result != 0) |
| alpha2 = NULL; |
| |
| connman_technology_regdom_notify(wifi_technology, alpha2); |
| } |
| |
| static int tech_set_regdom(struct connman_technology *technology, const char *alpha2) |
| { |
| return g_supplicant_set_country(alpha2, regdom_callback, NULL); |
| } |
| |
| static struct connman_technology_driver tech_driver = { |
| .name = "wifi", |
| .type = CONNMAN_SERVICE_TYPE_WIFI, |
| .probe = tech_probe, |
| .remove = tech_remove, |
| .set_tethering = tech_set_tethering, |
| .set_regdom = tech_set_regdom, |
| }; |
| |
| static int wifi_init(void) |
| { |
| int err; |
| |
| err = connman_network_driver_register(&network_driver); |
| if (err < 0) |
| return err; |
| |
| err = g_supplicant_register(&callbacks); |
| if (err < 0) { |
| connman_network_driver_unregister(&network_driver); |
| return err; |
| } |
| |
| err = connman_technology_driver_register(&tech_driver); |
| if (err < 0) { |
| g_supplicant_unregister(&callbacks); |
| connman_network_driver_unregister(&network_driver); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void wifi_exit(void) |
| { |
| DBG(); |
| |
| connman_technology_driver_unregister(&tech_driver); |
| |
| g_supplicant_unregister(&callbacks); |
| |
| connman_network_driver_unregister(&network_driver); |
| } |
| |
| CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION, |
| CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit) |