/** * dhcp_invalidate: Invalidate an existing DHCP lease * @dhcp: pointer to the DHCP lease to invalidate. * @callback: flag indicating whether or not to invoke the client callback * if present. * * Invalidates an existing DHCP lease, optionally invoking the client * callback. The caller may wish to avoid the client callback invocation * when the invocation of that callback might otherwise unnecessarily upset * service state due to the IP configuration change implied by this * invalidation. */ static void dhcp_invalidate(struct connman_dhcp *dhcp, connman_bool_t callback) { struct connman_service *service; struct connman_ipconfig *ipconfig; int i; DBG("dhcp %p callback %u", dhcp, callback); if (dhcp == NULL) return; service = connman_service_lookup_from_network(dhcp->network); if (service == NULL) goto out; ipconfig = __connman_service_get_ip4config(service); if (ipconfig == NULL) goto out; __connman_6to4_remove(ipconfig); __connman_service_set_domainname(service, NULL); __connman_service_set_pac(service, NULL); if (dhcp->timeservers != NULL) { for (i = 0; dhcp->timeservers[i] != NULL; i++) { __connman_service_timeserver_remove(service, dhcp->timeservers[i]); } } if (dhcp->nameservers != NULL) { for (i = 0; dhcp->nameservers[i] != NULL; i++) { __connman_service_nameserver_remove(service, dhcp->nameservers[i], FALSE); } } __connman_ipconfig_set_dhcp_address(ipconfig, __connman_ipconfig_get_local(ipconfig)); DBG("last address %s", __connman_ipconfig_get_dhcp_address(ipconfig)); __connman_ipconfig_address_remove(ipconfig); __connman_ipconfig_set_local(ipconfig, NULL); __connman_ipconfig_set_broadcast(ipconfig, NULL); __connman_ipconfig_set_gateway(ipconfig, NULL); __connman_ipconfig_set_prefixlen(ipconfig, 0); if (dhcp->callback != NULL && callback) dhcp->callback(dhcp->network, FALSE, NULL); out: dhcp_free(dhcp); }
static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data) { struct connman_dhcp *dhcp = user_data; GList *list, *option = NULL; char *address, *netmask = NULL, *gateway = NULL; const char *c_address, *c_gateway; char *domainname = NULL, *hostname = NULL; char **nameservers, *timeserver = NULL, *pac = NULL; int ns_entries; struct connman_ipconfig *ipconfig; struct connman_service *service; unsigned char prefixlen, c_prefixlen; gboolean ip_change; int i; DBG("Lease available"); service = __connman_service_lookup_from_network(dhcp->network); if (service == NULL) { connman_error("Can not lookup service"); return; } ipconfig = __connman_service_get_ip4config(service); if (ipconfig == NULL) { connman_error("Could not lookup ipconfig"); return; } c_address = __connman_ipconfig_get_local(ipconfig); c_gateway = __connman_ipconfig_get_gateway(ipconfig); c_prefixlen = __connman_ipconfig_get_prefixlen(ipconfig); address = g_dhcp_client_get_address(dhcp_client); __connman_ipconfig_set_dhcp_address(ipconfig, address); DBG("last address %s", address); option = g_dhcp_client_get_option(dhcp_client, G_DHCP_SUBNET); if (option != NULL) netmask = g_strdup(option->data); option = g_dhcp_client_get_option(dhcp_client, G_DHCP_ROUTER); if (option != NULL) gateway = g_strdup(option->data); prefixlen = __connman_ipconfig_netmask_prefix_len(netmask); DBG("c_address %s", c_address); if (address != NULL && c_address != NULL && g_strcmp0(address, c_address) != 0) ip_change = TRUE; else if (gateway != NULL && c_gateway != NULL && g_strcmp0(gateway, c_gateway) != 0) ip_change = TRUE; else if (prefixlen != c_prefixlen) ip_change = TRUE; else if (c_address == NULL || c_gateway == NULL) ip_change = TRUE; else ip_change = FALSE; option = g_dhcp_client_get_option(dhcp_client, G_DHCP_DNS_SERVER); for (ns_entries = 0, list = option; list; list = list->next) ns_entries += 1; nameservers = g_try_new0(char *, ns_entries + 1); if (nameservers != NULL) { for (i = 0, list = option; list; list = list->next, i++) nameservers[i] = g_strdup(list->data); nameservers[ns_entries] = NULL; } option = g_dhcp_client_get_option(dhcp_client, G_DHCP_DOMAIN_NAME); if (option != NULL) domainname = g_strdup(option->data); option = g_dhcp_client_get_option(dhcp_client, G_DHCP_HOST_NAME); if (option != NULL) hostname = g_strdup(option->data); option = g_dhcp_client_get_option(dhcp_client, G_DHCP_NTP_SERVER); if (option != NULL) timeserver = g_strdup(option->data); option = g_dhcp_client_get_option(dhcp_client, 252); if (option != NULL) pac = g_strdup(option->data); connman_ipconfig_set_method(ipconfig, CONNMAN_IPCONFIG_METHOD_DHCP); if (ip_change == TRUE) { __connman_ipconfig_set_local(ipconfig, address); __connman_ipconfig_set_prefixlen(ipconfig, prefixlen); __connman_ipconfig_set_gateway(ipconfig, gateway); } if (compare_string_arrays(nameservers, dhcp->nameservers) == FALSE) { if (dhcp->nameservers != NULL) { for (i = 0; dhcp->nameservers[i] != NULL; i++) { __connman_service_nameserver_remove(service, dhcp->nameservers[i]); } g_strfreev(dhcp->nameservers); } dhcp->nameservers = nameservers; for (i = 0; dhcp->nameservers[i] != NULL; i++) { __connman_service_nameserver_append(service, dhcp->nameservers[i]); } } else { g_strfreev(nameservers); } if (g_strcmp0(timeserver, dhcp->timeserver) != 0) { if (dhcp->timeserver != NULL) { __connman_service_timeserver_remove(service, dhcp->timeserver); g_free(dhcp->timeserver); } dhcp->timeserver = timeserver; if (dhcp->timeserver != NULL) __connman_service_timeserver_append(service, dhcp->timeserver); } if (g_strcmp0(pac, dhcp->pac) != 0) { g_free(dhcp->pac); dhcp->pac = pac; __connman_service_set_pac(service, dhcp->pac); } __connman_service_set_domainname(service, domainname); if (domainname != NULL) __connman_utsname_set_domainname(domainname); if (hostname != NULL) __connman_utsname_set_hostname(hostname); if (ip_change == TRUE) dhcp_valid(dhcp); __connman_6to4_probe(service); g_free(address); g_free(netmask); g_free(gateway); g_free(domainname); g_free(hostname); }