- if (compute_notifiable_changes(session) == FALSE)
- return FALSE;
-
- DBG("session %p owner %s notify_path %s", session,
- session->owner, session->notify_path);
-
- msg = dbus_message_new_method_call(session->owner, session->notify_path,
- CONNMAN_NOTIFICATION_INTERFACE,
- "Update");
- if (msg == NULL)
- return FALSE;
-
- dbus_message_iter_init_append(msg, &array);
- connman_dbus_dict_open(&array, &dict);
-
- append_notify(&dict, session);
-
- connman_dbus_dict_close(&array, &dict);
-
- g_dbus_send_message(connection, msg);
-
- return FALSE;
-}
-
-static void ipconfig_ipv4_changed(struct connman_session *session)
-{
- struct session_info *info = session->info;
-
- connman_dbus_setting_changed_dict(session->owner, session->notify_path,
- "IPv4", append_ipconfig_ipv4,
- info->entry->service);
-}
-
-static void ipconfig_ipv6_changed(struct connman_session *session)
-{
- struct session_info *info = session->info;
-
- connman_dbus_setting_changed_dict(session->owner, session->notify_path,
- "IPv6", append_ipconfig_ipv6,
- info->entry->service);
-}
-
-static connman_bool_t service_type_match(struct connman_session *session,
- struct connman_service *service)
-{
- struct session_info *info = session->info;
- GSList *list;
-
- for (list = info->config.allowed_bearers;
- list != NULL; list = list->next) {
- enum connman_service_type bearer = GPOINTER_TO_INT(list->data);
- enum connman_service_type service_type;
-
- if (bearer == CONNMAN_SERVICE_TYPE_UNKNOWN)
- return TRUE;
-
- service_type = connman_service_get_type(service);
- if (bearer == service_type)
- return TRUE;
- }
-
- return FALSE;
-}
-
-static connman_bool_t service_match(struct connman_session *session,
- struct connman_service *service)
-{
- if (service_type_match(session, service) == FALSE)
- return FALSE;
-
- return TRUE;
-}
-
-static int service_type_weight(enum connman_service_type type)
-{
- /*
- * The session doesn't care which service
- * to use. Nevertheless we have to sort them
- * according their type. The ordering is
- *
- * 1. Ethernet
- * 2. Bluetooth
- * 3. WiFi/WiMAX
- * 4. Cellular
- */
-
- switch (type) {
- case CONNMAN_SERVICE_TYPE_ETHERNET:
- return 4;
- case CONNMAN_SERVICE_TYPE_BLUETOOTH:
- return 3;
- case CONNMAN_SERVICE_TYPE_WIFI:
- case CONNMAN_SERVICE_TYPE_WIMAX:
- return 2;
- case CONNMAN_SERVICE_TYPE_CELLULAR:
- return 1;
- case CONNMAN_SERVICE_TYPE_UNKNOWN:
- case CONNMAN_SERVICE_TYPE_SYSTEM:
- case CONNMAN_SERVICE_TYPE_GPS:
- case CONNMAN_SERVICE_TYPE_VPN:
- case CONNMAN_SERVICE_TYPE_GADGET:
- break;
- }
-
- return 0;
-}
-
-static gint sort_allowed_bearers(struct connman_service *service_a,
- struct connman_service *service_b,
- struct connman_session *session)
-{
- struct session_info *info = session->info;
- GSList *list;
- enum connman_service_type type_a, type_b;
- int weight_a, weight_b;
-
- type_a = connman_service_get_type(service_a);
- type_b = connman_service_get_type(service_b);
-
- for (list = info->config.allowed_bearers;
- list != NULL; list = list->next) {
- enum connman_service_type bearer = GPOINTER_TO_INT(list->data);
-
- if (bearer == CONNMAN_SERVICE_TYPE_UNKNOWN) {
- if (type_a != type_b) {
- weight_a = service_type_weight(type_a);
- weight_b = service_type_weight(type_b);
-
- if (weight_a > weight_b)
- return -1;
-
- if (weight_a < weight_b)
- return 1;
-
- return 0;
- }
- }
-
- if (type_a == bearer && type_b == bearer)
- return 0;
-
- if (type_a == bearer && type_b != bearer)
- return -1;
-
- if (type_a != bearer && type_b == bearer)
- return 1;
- }
-
- return 0;
-}
-
-static gint sort_services(gconstpointer a, gconstpointer b, gpointer user_data)
-{
- struct service_entry *entry_a = (void *)a;
- struct service_entry *entry_b = (void *)b;
- struct connman_session *session = user_data;
-
- return sort_allowed_bearers(entry_a->service, entry_b->service,
- session);
-}
-
-static enum connman_session_state service_to_session_state(enum connman_service_state state)
-{
- switch (state) {
- case CONNMAN_SERVICE_STATE_UNKNOWN:
- case CONNMAN_SERVICE_STATE_IDLE:
- case CONNMAN_SERVICE_STATE_ASSOCIATION:
- case CONNMAN_SERVICE_STATE_CONFIGURATION:
- case CONNMAN_SERVICE_STATE_DISCONNECT:
- case CONNMAN_SERVICE_STATE_FAILURE:
- break;
- case CONNMAN_SERVICE_STATE_READY:
- return CONNMAN_SESSION_STATE_CONNECTED;
- case CONNMAN_SERVICE_STATE_ONLINE:
- return CONNMAN_SESSION_STATE_ONLINE;
- }
-
- return CONNMAN_SESSION_STATE_DISCONNECTED;
-}
-
-static connman_bool_t is_connected(enum connman_service_state state)
-{
- switch (state) {
- case CONNMAN_SERVICE_STATE_UNKNOWN:
- case CONNMAN_SERVICE_STATE_IDLE:
- case CONNMAN_SERVICE_STATE_ASSOCIATION:
- case CONNMAN_SERVICE_STATE_CONFIGURATION:
- case CONNMAN_SERVICE_STATE_DISCONNECT:
- case CONNMAN_SERVICE_STATE_FAILURE:
- break;
- case CONNMAN_SERVICE_STATE_READY:
- case CONNMAN_SERVICE_STATE_ONLINE:
- return TRUE;
- }
-
- return FALSE;
-}
-
-static connman_bool_t is_connecting(enum connman_service_state state)
-{
- switch (state) {
- case CONNMAN_SERVICE_STATE_UNKNOWN:
- case CONNMAN_SERVICE_STATE_IDLE:
- break;
- case CONNMAN_SERVICE_STATE_ASSOCIATION:
- case CONNMAN_SERVICE_STATE_CONFIGURATION:
- return TRUE;
- case CONNMAN_SERVICE_STATE_DISCONNECT:
- case CONNMAN_SERVICE_STATE_FAILURE:
- case CONNMAN_SERVICE_STATE_READY:
- case CONNMAN_SERVICE_STATE_ONLINE:
- break;
- }
-
- return FALSE;
-}
-
-static connman_bool_t explicit_connect(enum connman_session_reason reason)
-{
- switch (reason) {
- case CONNMAN_SESSION_REASON_UNKNOWN:
- case CONNMAN_SESSION_REASON_FREE_RIDE:
- break;
- case CONNMAN_SESSION_REASON_CONNECT:
- return TRUE;
- }
-
- return FALSE;
-}
-
-static connman_bool_t explicit_disconnect(struct session_info *info)
-{
- if (info->entry == NULL)
- return FALSE;
-
- DBG("reason %s service %p state %d",
- reason2string(info->entry->reason),
- info->entry->service, info->entry->state);
-
- if (info->entry->reason == CONNMAN_SESSION_REASON_UNKNOWN)
- return FALSE;
-
- if (explicit_connect(info->entry->reason) == FALSE)
- return FALSE;
-
- if (__connman_service_session_dec(info->entry->service) == FALSE)
- return FALSE;
-
- return TRUE;
-}
-
-struct pending_data {
- unsigned int timeout;
- struct service_entry *entry;
- gboolean (*cb)(gpointer);
-};
-
-static void pending_timeout_free(gpointer data, gpointer user_data)
-{
- struct pending_data *pending = data;
-
- DBG("pending %p timeout %d", pending, pending->timeout);
- g_source_remove(pending->timeout);
- g_free(pending);
-}
-
-static void pending_timeout_remove_all(struct service_entry *entry)
-{
- DBG("");
-
- g_slist_foreach(entry->pending_timeouts, pending_timeout_free, NULL);
- g_slist_free(entry->pending_timeouts);
- entry->pending_timeouts = NULL;
-}
-
-static gboolean pending_timeout_cb(gpointer data)
-{
- struct pending_data *pending = data;
- struct service_entry *entry = pending->entry;
- gboolean ret;
-
- DBG("pending %p timeout %d", pending, pending->timeout);
-
- ret = pending->cb(pending->entry);
- if (ret == FALSE) {
- entry->pending_timeouts =
- g_slist_remove(entry->pending_timeouts,
- pending);
- g_free(pending);
- }
- return ret;
-}
-
-static connman_bool_t pending_timeout_add(unsigned int seconds,
- gboolean (*cb)(gpointer),
- struct service_entry *entry)
-{
- struct pending_data *pending = g_try_new0(struct pending_data, 1);
-
- if (pending == NULL || cb == NULL || entry == NULL) {
- g_free(pending);
- return FALSE;
- }
-
- pending->cb = cb;
- pending->entry = entry;
- pending->timeout = g_timeout_add_seconds(seconds, pending_timeout_cb,
- pending);
- entry->pending_timeouts = g_slist_prepend(entry->pending_timeouts,
- pending);
-
- DBG("pending %p entry %p timeout id %d", pending, entry,
- pending->timeout);
-
- return TRUE;
-}
-
-static gboolean call_disconnect(gpointer user_data)
-{
- struct service_entry *entry = user_data;
- struct connman_service *service = entry->service;
-
- /*
- * TODO: We should mark this entry as pending work. In case
- * disconnect fails we just unassign this session from the
- * service and can't do anything later on it
- */
- DBG("disconnect service %p", service);
- __connman_service_disconnect(service);
-
- return FALSE;
-}
-
-static gboolean call_connect(gpointer user_data)
-{
- struct service_entry *entry = user_data;
- struct connman_service *service = entry->service;
-
- DBG("connect service %p", service);
- __connman_service_connect(service);
-
- return FALSE;
-}
-
-static void deselect_service(struct session_info *info)
-{
- struct service_entry *entry;
- connman_bool_t disconnect, connected;
-
- DBG("");
-
- if (info->entry == NULL)
- return;
-
- disconnect = explicit_disconnect(info);
-
- connected = is_connecting(info->entry->state) == TRUE ||
- is_connected(info->entry->state) == TRUE;
-
- info->state = CONNMAN_SESSION_STATE_DISCONNECTED;
- info->entry->reason = CONNMAN_SESSION_REASON_UNKNOWN;
-
- entry = info->entry;
- info->entry = NULL;
-
- DBG("disconnect %d connected %d", disconnect, connected);
-
- if (disconnect == TRUE && connected == TRUE)
- pending_timeout_add(0, call_disconnect, entry);
-}
-
-static void deselect_and_disconnect(struct connman_session *session)
-{
- struct session_info *info = session->info;
-
- deselect_service(info);
-
- info->reason = CONNMAN_SESSION_REASON_FREE_RIDE;
-}
-
-static void select_connected_service(struct session_info *info,
- struct service_entry *entry)
-{
- enum connman_session_state state;
-
- state = service_to_session_state(entry->state);
- if (is_type_matching_state(&state, info->config.type) == FALSE)
- return;
-
- info->state = state;
-
- info->entry = entry;
- info->entry->reason = info->reason;
-
- if (explicit_connect(info->reason) == FALSE)
- return;
-
- __connman_service_session_inc(info->entry->service);
-}
-
-static void select_offline_service(struct session_info *info,
- struct service_entry *entry)
-{
- if (explicit_connect(info->reason) == FALSE)
- return;
-
- info->state = service_to_session_state(entry->state);
-
- info->entry = entry;
- info->entry->reason = info->reason;
-
- __connman_service_session_inc(info->entry->service);
- pending_timeout_add(0, call_connect, entry);
-}
-
-static void select_service(struct session_info *info,
- struct service_entry *entry)
-{
- DBG("service %p", entry->service);
-
- if (is_connected(entry->state) == TRUE)
- select_connected_service(info, entry);
- else
- select_offline_service(info, entry);
-}
-
-static void select_and_connect(struct connman_session *session,
- enum connman_session_reason reason)
-{
- struct session_info *info = session->info;
- struct service_entry *entry = NULL;
- GSequenceIter *iter;
-
- DBG("session %p reason %s", session, reason2string(reason));
-
- info->reason = reason;
-
- iter = g_sequence_get_begin_iter(session->service_list);
-
- while (g_sequence_iter_is_end(iter) == FALSE) {
- entry = g_sequence_get(iter);
-
- switch (entry->state) {
- case CONNMAN_SERVICE_STATE_ASSOCIATION:
- case CONNMAN_SERVICE_STATE_CONFIGURATION:
- case CONNMAN_SERVICE_STATE_READY:
- case CONNMAN_SERVICE_STATE_ONLINE:
- case CONNMAN_SERVICE_STATE_IDLE:
- case CONNMAN_SERVICE_STATE_DISCONNECT:
- select_service(info, entry);
- return;
- case CONNMAN_SERVICE_STATE_UNKNOWN:
- case CONNMAN_SERVICE_STATE_FAILURE:
- break;
- }
-
- iter = g_sequence_iter_next(iter);
- }
-}
-
-static struct service_entry *create_service_entry(struct connman_service *service,
- const char *name,
- enum connman_service_state state)
-{
- struct service_entry *entry;
- enum connman_service_type type;
- int idx;
-
- entry = g_try_new0(struct service_entry, 1);
- if (entry == NULL)
- return entry;
-
- entry->reason = CONNMAN_SESSION_REASON_UNKNOWN;
- entry->state = state;
- if (name != NULL)
- entry->name = name;
- else
- entry->name = "";
- entry->service = service;
-
- idx = __connman_service_get_index(entry->service);
- entry->ifname = connman_inet_ifname(idx);
- if (entry->ifname == NULL)
- entry->ifname = g_strdup("");
-
- type = connman_service_get_type(entry->service);
- entry->bearer = service2bearer(type);
-
- return entry;
-}
-
-static void destroy_service_entry(gpointer data)
-{
- struct service_entry *entry = data;
-
- pending_timeout_remove_all(entry);
- g_free(entry->ifname);
-
- g_free(entry);
-}
-
-static void populate_service_list(struct connman_session *session)
-{
- struct service_entry *entry;
- GSequenceIter *iter;
-
- session->service_hash =
- g_hash_table_new_full(g_direct_hash, g_direct_equal,
- NULL, NULL);
- session->service_list = __connman_service_get_list(session,
- service_match,
- create_service_entry,
- destroy_service_entry);
-
- g_sequence_sort(session->service_list, sort_services, session);
-
- iter = g_sequence_get_begin_iter(session->service_list);
-
- while (g_sequence_iter_is_end(iter) == FALSE) {
- entry = g_sequence_get(iter);
-
- DBG("service %p type %s name %s", entry->service,
- service2bearer(connman_service_get_type(entry->service)),
- entry->name);
-
- g_hash_table_replace(session->service_hash,
- entry->service, iter);
-
- iter = g_sequence_iter_next(iter);
- }
-}
-
-static void session_changed(struct connman_session *session,
- enum connman_session_trigger trigger)
-{
- struct session_info *info = session->info;
- struct session_info *info_last = session->info_last;
- GSequenceIter *service_iter = NULL, *service_iter_last = NULL;
- GSequence *service_list_last;
- GHashTable *service_hash_last;
-
- /*
- * TODO: This only a placeholder for the 'real' algorithm to
- * play a bit around. So we are going to improve it step by step.
- */
-
- DBG("session %p trigger %s reason %s", session, trigger2string(trigger),
- reason2string(info->reason));
-
- if (info->entry != NULL) {
- enum connman_session_state state;
-
- state = service_to_session_state(info->entry->state);
-
- if (is_type_matching_state(&state, info->config.type) == TRUE)
- info->state = state;
- }
-
- switch (trigger) {
- case CONNMAN_SESSION_TRIGGER_UNKNOWN:
- DBG("ignore session changed event");
- return;
- case CONNMAN_SESSION_TRIGGER_SETTING:
- if (info->config.allowed_bearers != info_last->config.allowed_bearers) {
-
- service_hash_last = session->service_hash;
- service_list_last = session->service_list;
-
- populate_service_list(session);
-
- if (info->entry != NULL) {
- service_iter_last = g_hash_table_lookup(
- service_hash_last,
- info->entry->service);
- service_iter = g_hash_table_lookup(
- session->service_hash,
- info->entry->service);
- }
-
- if (service_iter == NULL && service_iter_last != NULL) {
- /*
- * The currently selected service is
- * not part of this session anymore.
- */
- deselect_and_disconnect(session);
- }
-
- g_hash_table_remove_all(service_hash_last);
- g_sequence_free(service_list_last);
- }
-
- if (info->config.type != info_last->config.type) {
- if (info->state >= CONNMAN_SESSION_STATE_CONNECTED &&
- is_type_matching_state(&info->state,
- info->config.type) == FALSE)
- deselect_and_disconnect(session);
- }
-
- if (info->state == CONNMAN_SESSION_STATE_DISCONNECTED) {
- select_and_connect(session,
- CONNMAN_SESSION_REASON_FREE_RIDE);
- }