Maintain connection status when wifi roaming

[platform/upstream/connman.git] / src / dhcp.c

diff --git a/src/dhcp.c b/src/dhcp.c
index 1af1eb5..7c446cf 100644 (file)
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -67,6 +67,9 @@ static GHashTable *ipconfig_table;
 
 static void dhcp_free(struct connman_dhcp *dhcp)
 {
+#if defined TIZEN_EXT
+       DBG("dhcp_free [%p]", dhcp);
+#endif
        g_strfreev(dhcp->nameservers);
        g_strfreev(dhcp->timeservers);
        g_free(dhcp->pac);
@@ -76,10 +79,16 @@ static void dhcp_free(struct connman_dhcp *dhcp)
        dhcp->pac = NULL;
 
        g_free(dhcp);
+#if defined TIZEN_EXT
+       dhcp = NULL;
+#endif
 }
 
 static void ipv4ll_stop_client(struct connman_dhcp *dhcp)
 {
+#if defined TIZEN_EXT
+       DBG("dhcp [%p] ipv4ll_client [%p]", dhcp, dhcp->ipv4ll_client);
+#endif
        if (!dhcp->ipv4ll_client)
                return;
 
@@ -119,8 +128,14 @@ static bool apply_dhcp_invalidate_on_network(struct connman_dhcp *dhcp)
        }
        if (dhcp->nameservers) {
                for (i = 0; dhcp->nameservers[i]; i++) {
+#if defined TIZEN_EXT
+                       __connman_service_nameserver_remove(service,
+                                       dhcp->nameservers[i], false,
+                                       CONNMAN_IPCONFIG_TYPE_IPV4);
+#else
                        __connman_service_nameserver_remove(service,
                                                dhcp->nameservers[i], false);
+#endif
                }
                g_strfreev(dhcp->nameservers);
                dhcp->nameservers = NULL;
@@ -193,6 +208,10 @@ static int ipv4ll_start_client(struct connman_dhcp *dhcp)
        int index;
        int err;
 
+#if defined TIZEN_EXT
+       DBG("dhcp %p", dhcp);
+#endif
+
        if (dhcp->ipv4ll_client)
                return -EALREADY;
 
@@ -202,12 +221,16 @@ static int ipv4ll_start_client(struct connman_dhcp *dhcp)
        if (error != G_DHCP_CLIENT_ERROR_NONE)
                return -EINVAL;
 
+#if !defined TIZEN_EXT
        if (getenv("CONNMAN_DHCP_DEBUG")) {
+#endif
                dhcp->ipv4ll_debug_prefix = g_strdup_printf("IPv4LL index %d",
                                                        index);
                g_dhcp_client_set_debug(ipv4ll_client, dhcp_debug,
                                        dhcp->ipv4ll_debug_prefix);
+#if !defined TIZEN_EXT
        }
+#endif
 
        g_dhcp_client_set_id(ipv4ll_client);
 
@@ -243,6 +266,10 @@ static gboolean dhcp_retry_cb(gpointer user_data)
 
        dhcp->timeout = 0;
 
+#if defined TIZEN_EXT
+       DBG("dhcp %p", dhcp);
+       DBG("dhcp->timeout %d", dhcp->timeout);
+#endif
        g_dhcp_client_start(dhcp->dhcp_client,
                        __connman_ipconfig_get_dhcp_address(dhcp->ipconfig));
 
@@ -257,6 +284,22 @@ static void no_lease_cb(GDHCPClient *dhcp_client, gpointer user_data)
        DBG("No lease available ipv4ll %d client %p", dhcp->ipv4ll_running,
                dhcp->ipv4ll_client);
 
+#if defined TIZEN_EXT
+       if (dhcp->network &&
+                       connman_network_get_bool(dhcp->network, "WiFi.RoamingDHCP")) {
+               connman_network_set_bool(dhcp->network, "WiFi.RoamingDHCP", false);
+               __connman_network_enable_ipconfig(dhcp->network, dhcp->ipconfig);
+
+               return;
+       }
+
+       if (connman_setting_get_bool("EnableAutoIp") == false) {
+               DBG("link-local address autoconfiguration is disabled.");
+               if (dhcp->network)
+                       __connman_network_disconnect(dhcp->network);
+               return;
+       }
+#endif
        if (dhcp->timeout > 0)
                g_source_remove(dhcp->timeout);
 
@@ -382,18 +425,32 @@ static bool apply_lease_available_on_network(GDHCPClient *dhcp_client,
 
        if (!compare_string_arrays(nameservers, dhcp->nameservers)) {
                if (dhcp->nameservers) {
+#if defined TIZEN_EXT
+                       for (i = 0; dhcp->nameservers[i] != NULL; i++) {
+                               __connman_service_nameserver_remove(service,
+                                               dhcp->nameservers[i], false,
+                                               CONNMAN_IPCONFIG_TYPE_IPV4);
+                       }
+#else
                        for (i = 0; dhcp->nameservers[i]; i++) {
                                __connman_service_nameserver_remove(service,
                                                dhcp->nameservers[i], false);
                        }
+#endif
                        g_strfreev(dhcp->nameservers);
                }
 
                dhcp->nameservers = nameservers;
 
                for (i = 0; dhcp->nameservers && dhcp->nameservers[i]; i++) {
+#if defined TIZEN_EXT
+                       __connman_service_nameserver_append(service,
+                                               dhcp->nameservers[i], false,
+                                               CONNMAN_IPCONFIG_TYPE_IPV4);
+#else
                        __connman_service_nameserver_append(service,
                                                dhcp->nameservers[i], false);
+#endif
                }
        } else {
                g_strfreev(nameservers);
@@ -458,6 +515,10 @@ static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data)
        __connman_ipconfig_set_dhcp_address(dhcp->ipconfig, address);
        DBG("last address %s", address);
 
+#if defined TIZEN_EXT
+       int dhcp_lease_duration = g_dhcp_client_get_dhcp_lease_duration(dhcp_client);
+#endif
+
        option = g_dhcp_client_get_option(dhcp_client, G_DHCP_SUBNET);
        if (option)
                netmask = g_strdup(option->data);
@@ -492,6 +553,10 @@ static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data)
        __connman_ipconfig_set_method(dhcp->ipconfig,
                                                CONNMAN_IPCONFIG_METHOD_DHCP);
 
+#if defined TIZEN_EXT
+       __connman_ipconfig_set_dhcp_lease_duration(dhcp->ipconfig, dhcp_lease_duration);
+#endif
+
        /*
         * Notify IPv4.Configuration's method moved back to DHCP.
         *
@@ -506,6 +571,17 @@ static void lease_available_cb(GDHCPClient *dhcp_client, gpointer user_data)
                        __connman_service_notify_ipv4_configuration(service);
        }
 
+#if defined TIZEN_EXT
+       if (connman_network_get_bool(dhcp->network, "WiFi.RoamingDHCP")) {
+
+               if (ip_change)
+                       connman_service_notify_reconnection(
+                               connman_service_lookup_from_network(dhcp->network));
+
+               connman_network_set_bool(dhcp->network, "WiFi.RoamingDHCP", false);
+       }
+#endif
+
        if (ip_change) {
                __connman_ipconfig_set_local(dhcp->ipconfig, address);
                __connman_ipconfig_set_prefixlen(dhcp->ipconfig, prefixlen);
@@ -580,14 +656,25 @@ static int dhcp_initialize(struct connman_dhcp *dhcp)
 
        dhcp_client = g_dhcp_client_new(G_DHCP_IPV4, index, &error);
        if (error != G_DHCP_CLIENT_ERROR_NONE)
+#if defined TIZEN_EXT
+       {
+               DBG("failed g_dhcp_client_new(%d), index(%d)", error, index);
+#endif
                return -EINVAL;
+#if defined TIZEN_EXT
+       }
+#endif
 
+#if !defined TIZEN_EXT
        if (getenv("CONNMAN_DHCP_DEBUG")) {
+#endif
                dhcp->dhcp_debug_prefix = g_strdup_printf("DHCP index %d",
                                                        index);
                g_dhcp_client_set_debug(dhcp_client, dhcp_debug,
                                        dhcp->dhcp_debug_prefix);
+#if !defined TIZEN_EXT
        }
+#endif
 
        g_dhcp_client_set_id(dhcp_client);
 
@@ -616,7 +703,7 @@ static int dhcp_initialize(struct connman_dhcp *dhcp)
        g_dhcp_client_set_request(dhcp_client, G_DHCP_ROUTER);
        g_dhcp_client_set_request(dhcp_client, G_DHCP_SUBNET);
 
-       vendor_class_id = connman_option_get_string("VendorClassID");
+       vendor_class_id = connman_setting_get_string("VendorClassID");
        if (vendor_class_id)
                g_dhcp_client_set_send(dhcp_client, G_DHCP_VENDOR_CLASS_ID,
                                        vendor_class_id);
@@ -671,11 +758,48 @@ char *__connman_dhcp_get_server_address(struct connman_ipconfig *ipconfig)
        return g_dhcp_client_get_server_address(dhcp->dhcp_client);
 }
 
+#if defined TIZEN_EXT_WIFI_MESH
+int __connman_mesh_dhcp_start(struct connman_ipconfig *ipconfig,
+                       dhcp_cb callback, gpointer user_data)
+{
+       struct connman_dhcp *dhcp;
+       int err;
+
+       DBG("");
+
+       dhcp = g_hash_table_lookup(ipconfig_table, ipconfig);
+       if (!dhcp) {
+
+               dhcp = g_try_new0(struct connman_dhcp, 1);
+               if (!dhcp)
+                       return -ENOMEM;
+
+               dhcp->ipconfig = ipconfig;
+               __connman_ipconfig_ref(ipconfig);
+
+               err = dhcp_initialize(dhcp);
+
+               if (err < 0) {
+                       g_free(dhcp);
+                       return err;
+               }
+
+               g_hash_table_insert(ipconfig_table, ipconfig, dhcp);
+       }
+
+       dhcp->callback = callback;
+       dhcp->user_data = user_data;
+       return g_dhcp_client_start(dhcp->dhcp_client, NULL);
+}
+#endif
+
 int __connman_dhcp_start(struct connman_ipconfig *ipconfig,
                        struct connman_network *network, dhcp_cb callback,
                        gpointer user_data)
 {
+#if !defined TIZEN_EXT
        const char *last_addr = NULL;
+#endif
        struct connman_dhcp *dhcp;
        int err;
 
@@ -689,7 +813,9 @@ int __connman_dhcp_start(struct connman_ipconfig *ipconfig,
                        return -EINVAL;
        }
 
+#if !defined TIZEN_EXT
        last_addr = __connman_ipconfig_get_dhcp_address(ipconfig);
+#endif
 
        dhcp = g_hash_table_lookup(ipconfig_table, ipconfig);
        if (!dhcp) {
@@ -721,7 +847,19 @@ int __connman_dhcp_start(struct connman_ipconfig *ipconfig,
        dhcp->callback = callback;
        dhcp->user_data = user_data;
 
+#if defined TIZEN_EXT
+       if (connman_network_get_bool(network, "WiFi.RoamingDHCP")) {
+               const char *last_addr = __connman_ipconfig_get_dhcp_address(ipconfig);
+
+               DBG("Start DHCP with last address request");
+               return g_dhcp_client_start(dhcp->dhcp_client, last_addr);
+       } else {
+               DBG("Start DHCP with DHCPDISCOVER request");
+               return g_dhcp_client_start(dhcp->dhcp_client, NULL);
+       }
+#else
        return g_dhcp_client_start(dhcp->dhcp_client, last_addr);
+#endif
 }
 
 void __connman_dhcp_stop(struct connman_ipconfig *ipconfig)
@@ -745,6 +883,30 @@ void __connman_dhcp_stop(struct connman_ipconfig *ipconfig)
        }
 }
 
+void __connman_dhcp_decline(struct connman_ipconfig *ipconfig)
+{
+       struct connman_dhcp *dhcp;
+       const char *address;
+       struct in_addr addr;
+
+       DBG("ipconfig_table %p ipconfig %p", ipconfig_table, ipconfig);
+
+       if (!ipconfig_table)
+               return;
+
+       dhcp = g_hash_table_lookup(ipconfig_table, ipconfig);
+       if (dhcp) {
+               address = __connman_ipconfig_get_local(ipconfig);
+               if (!address)
+                       return;
+
+               if (inet_pton(AF_INET, address, &addr) != 1)
+                       connman_error("Could not convert address %s", address);
+
+               g_dhcp_client_decline(dhcp->dhcp_client, htonl(addr.s_addr));
+       }
+}
+
 int __connman_dhcp_init(void)
 {
        DBG("");
@@ -761,6 +923,4 @@ void __connman_dhcp_cleanup(void)
 
        g_hash_table_destroy(ipconfig_table);
        ipconfig_table = NULL;
-
-       dhcp_cleanup_random();
 }