core: abstract out the duplicated default-ifname-generating code

NMDeviceBond, NMDeviceBridge, and NMDeviceTeam all used basically the
same code to generate a default interface name. Move it into
nm_utils_complete_generic().

src/NetworkManagerUtils.c

@@ -907,6 +907,40 @@ get_new_connection_name (const GSList *existing,
 	return cname;
 }
 
+static char *
+get_new_connection_ifname (const GSList *existing,
+                           const char *prefix)
+{
+	int i;
+	char *name;
+	const GSList *iter;
+	gboolean found;
+
+	for (i = 0; i < 500; i++) {
+		name = g_strdup_printf ("%s%d", prefix, i);
+
+		if (nm_platform_link_exists (name))
+			goto next;
+
+		for (iter = existing, found = FALSE; iter; iter = g_slist_next (iter)) {
+			NMConnection *candidate = iter->data;
+
+			if (g_strcmp0 (nm_connection_get_interface_name (candidate), name) == 0) {
+				found = TRUE;
+				break;
+			}
+		}
+
+		if (!found)
+			return name;
+
+	next:
+		g_free (name);
+	}
+
+	return NULL;
+}
+
 const char *
 nm_utils_get_ip_config_method (NMConnection *connection,
                                GType         ip_setting_type)
@@ -954,18 +988,16 @@ void
 nm_utils_complete_generic (NMConnection *connection,
                            const char *ctype,
                            const GSList *existing,
-                           const char *preferred,
+                           const char *preferred_id,
-                           const char *fallback_prefix,
+                           const char *fallback_id_prefix,
+                           const char *ifname_prefix,
                            gboolean default_enable_ipv6)
 {
 	NMSettingConnection *s_con;
-	char *id, *uuid;
+	char *id, *uuid, *ifname;
-	GHashTable *parameters = g_hash_table_new (g_str_hash, g_str_equal);
+	GHashTable *parameters;
 
-	g_assert (fallback_prefix);
+	g_assert (fallback_id_prefix);
-
-	g_hash_table_insert (parameters, NM_CONNECTION_NORMALIZE_PARAM_IP6_CONFIG_METHOD,
-	                     default_enable_ipv6 ? NM_SETTING_IP6_CONFIG_METHOD_AUTO : NM_SETTING_IP6_CONFIG_METHOD_IGNORE);
 
 	s_con = nm_connection_get_setting_connection (connection);
 	if (!s_con) {
@@ -982,14 +1014,23 @@ nm_utils_complete_generic (NMConnection *connection,
 
 	/* Add a connection ID if absent */
 	if (!nm_setting_connection_get_id (s_con)) {
-		id = get_new_connection_name (existing, preferred, fallback_prefix);
+		id = get_new_connection_name (existing, preferred_id, fallback_id_prefix);
 		g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_ID, id, NULL);
 		g_free (id);
 	}
 
-	/* Normalize */
+	/* Add an interface name, if requested */
-	nm_connection_normalize (connection, parameters, NULL, NULL);
+	if (ifname_prefix && !nm_setting_connection_get_interface_name (s_con)) {
+		ifname = get_new_connection_ifname (existing, ifname_prefix);
+		g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_INTERFACE_NAME, ifname, NULL);
+		g_free (ifname);
+	}
 
+	/* Normalize */
+	parameters = g_hash_table_new (g_str_hash, g_str_equal);
+	g_hash_table_insert (parameters, NM_CONNECTION_NORMALIZE_PARAM_IP6_CONFIG_METHOD,
+	                     default_enable_ipv6 ? NM_SETTING_IP6_CONFIG_METHOD_AUTO : NM_SETTING_IP6_CONFIG_METHOD_IGNORE);
+	nm_connection_normalize (connection, parameters, NULL, NULL);
 	g_hash_table_destroy (parameters);
 }
 

src/NetworkManagerUtils.h

@@ -102,8 +102,9 @@ const char *nm_utils_get_ip_config_method (NMConnection *connection,
 void nm_utils_complete_generic (NMConnection *connection,
                                 const char *ctype,
                                 const GSList *existing,
-                                const char *preferred,
+                                const char *preferred_id,
-                                const char *fallback_prefix,
+                                const char *fallback_id_prefix,
+                                const char *ifname_prefix,
                                 gboolean default_enable_ipv6);
 
 char *nm_utils_new_vlan_name (const char *parent_iface, guint32 vlan_id);

src/devices/adsl/nm-device-adsl.c

@@ -125,6 +125,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           NULL,
 	                           _("ADSL connection"),
+	                           NULL,
 	                           FALSE); /* No IPv6 yet by default */
 
 

src/devices/bluetooth/nm-device-bt.c

@@ -318,6 +318,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           preferred,
 	                           fallback_prefix,
+	                           NULL,
 	                           is_dun ? FALSE : TRUE); /* No IPv6 yet for DUN */
 
 	setting_bdaddr = nm_setting_bluetooth_get_bdaddr (s_bt);

src/devices/nm-device-bond.c

@@ -128,17 +128,13 @@ complete_connection (NMDevice *device,
                      GError **error)
 {
 	NMSettingBond *s_bond;
-	NMSettingConnection *s_con;
-	guint32 i = 0;
-	char *name;
-	const GSList *iter;
-	gboolean found;
 
 	nm_utils_complete_generic (connection,
 	                           NM_SETTING_BOND_SETTING_NAME,
 	                           existing_connections,
 	                           NULL,
 	                           _("Bond connection"),
+	                           "bond",
 	                           TRUE);
 
 	s_bond = nm_connection_get_setting_bond (connection);
@@ -146,35 +142,6 @@ complete_connection (NMDevice *device,
 		s_bond = (NMSettingBond *) nm_setting_bond_new ();
 		nm_connection_add_setting (connection, NM_SETTING (s_bond));
 	}
-	s_con = nm_connection_get_setting_connection (connection);
-	g_return_val_if_fail (s_con != NULL, FALSE);
-
-	/* Grab the first name that doesn't exist in either our connections
-	 * or a device on the system.
-	 */
-	while (i < 500 && !nm_setting_connection_get_interface_name (s_con)) {
-		name = g_strdup_printf ("bond%u", i);
-		/* check interface names */
-		if (!nm_platform_link_exists (name)) {
-			/* check existing bond connections */
-			for (iter = existing_connections, found = FALSE; iter; iter = g_slist_next (iter)) {
-				NMConnection *candidate = iter->data;
-
-				if (nm_connection_is_type (candidate, NM_SETTING_BOND_SETTING_NAME)) {
-					if (g_strcmp0 (nm_connection_get_interface_name (candidate), name) == 0) {
-						found = TRUE;
-						break;
-					}
-				}
-			}
-
-			if (!found)
-				g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_INTERFACE_NAME, name, NULL);
-		}
-
-		g_free (name);
-		i++;
-	}
 
 	return TRUE;
 }

src/devices/nm-device-bridge.c

@@ -136,17 +136,13 @@ complete_connection (NMDevice *device,
                      GError **error)
 {
 	NMSettingBridge *s_bridge;
-	NMSettingConnection *s_con;
-	guint32 i = 0;
-	char *name;
-	const GSList *iter;
-	gboolean found;
 
 	nm_utils_complete_generic (connection,
 	                           NM_SETTING_BRIDGE_SETTING_NAME,
 	                           existing_connections,
 	                           NULL,
 	                           _("Bridge connection"),
+	                           "bridge",
 	                           TRUE);
 
 	s_bridge = nm_connection_get_setting_bridge (connection);
@@ -154,35 +150,6 @@ complete_connection (NMDevice *device,
 		s_bridge = (NMSettingBridge *) nm_setting_bridge_new ();
 		nm_connection_add_setting (connection, NM_SETTING (s_bridge));
 	}
-	s_con = nm_connection_get_setting_connection (connection);
-	g_return_val_if_fail (s_con != NULL, FALSE);
-
-	/* Grab the first name that doesn't exist in either our connections
-	 * or a device on the system.
-	 */
-	while (i < 500 && !nm_setting_connection_get_interface_name (s_con)) {
-		name = g_strdup_printf ("br%u", i);
-		/* check interface names */
-		if (!nm_platform_link_exists (name)) {
-			/* check existing bridge connections */
-			for (iter = existing_connections, found = FALSE; iter; iter = g_slist_next (iter)) {
-				NMConnection *candidate = iter->data;
-
-				if (nm_connection_is_type (candidate, NM_SETTING_BRIDGE_SETTING_NAME)) {
-					if (g_strcmp0 (nm_connection_get_interface_name (candidate), name) == 0) {
-						found = TRUE;
-						break;
-					}
-				}
-			}
-
-			if (!found)
-				g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_INTERFACE_NAME, name, NULL);
-		}
-
-		g_free (name);
-		i++;
-	}
 
 	return TRUE;
 }

src/devices/nm-device-ethernet.c

@@ -1448,6 +1448,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           NULL,
 	                           s_pppoe ? _("PPPoE connection") : _("Wired connection"),
+	                           NULL,
 	                           s_pppoe ? FALSE : TRUE); /* No IPv6 by default yet for PPPoE */
 
 	s_wired = nm_connection_get_setting_wired (connection);

src/devices/nm-device-infiniband.c

@@ -233,6 +233,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           NULL,
 	                           _("InfiniBand connection"),
+	                           NULL,
 	                           TRUE);
 
 	s_infiniband = nm_connection_get_setting_infiniband (connection);

src/devices/nm-device-vlan.c

@@ -228,6 +228,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           NULL,
 	                           _("VLAN connection"),
+	                           NULL,
 	                           TRUE);
 
 	s_vlan = nm_connection_get_setting_vlan (connection);

src/devices/team/nm-device-team.c

@@ -139,17 +139,13 @@ complete_connection (NMDevice *device,
                      GError **error)
 {
 	NMSettingTeam *s_team;
-	NMSettingConnection *s_con;
-	guint32 i = 0;
-	char *name;
-	const GSList *iter;
-	gboolean found;
 
 	nm_utils_complete_generic (connection,
 	                           NM_SETTING_TEAM_SETTING_NAME,
 	                           existing_connections,
 	                           NULL,
 	                           _("Team connection"),
+	                           "team",
 	                           TRUE);
 
 	s_team = nm_connection_get_setting_team (connection);
@@ -157,35 +153,6 @@ complete_connection (NMDevice *device,
 		s_team = (NMSettingTeam *) nm_setting_team_new ();
 		nm_connection_add_setting (connection, NM_SETTING (s_team));
 	}
-	s_con = nm_connection_get_setting_connection (connection);
-	g_return_val_if_fail (s_con != NULL, FALSE);
-
-	/* Grab the first name that doesn't exist in either our connections
-	 * or a device on the system.
-	 */
-	while (i < 500 && !nm_setting_connection_get_interface_name (s_con)) {
-		name = g_strdup_printf ("team%u", i);
-		/* check interface names */
-		if (!nm_platform_link_exists (name)) {
-			/* check existing team connections */
-			for (iter = existing_connections, found = FALSE; iter; iter = g_slist_next (iter)) {
-				NMConnection *candidate = iter->data;
-
-				if (nm_connection_is_type (candidate, NM_SETTING_TEAM_SETTING_NAME)) {
-					if (g_strcmp0 (nm_connection_get_interface_name (candidate), name) == 0) {
-						found = TRUE;
-						break;
-					}
-				}
-			}
-
-			if (!found)
-				g_object_set (G_OBJECT (s_con), NM_SETTING_CONNECTION_INTERFACE_NAME, name, NULL);
-		}
-
-		g_free (name);
-		i++;
-	}
 
 	return TRUE;
 }

src/devices/wifi/nm-device-olpc-mesh.c

@@ -164,6 +164,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           NULL,
 	                           _("Mesh"),
+	                           NULL,
 	                           FALSE); /* No IPv6 by default */
 
 	return TRUE;

src/devices/wifi/nm-device-wifi.c

@@ -1109,6 +1109,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           str_ssid,
 	                           str_ssid,
+	                           NULL,
 	                           TRUE);
 	g_free (str_ssid);
 

src/devices/wimax/nm-device-wimax.c

@@ -442,6 +442,7 @@ complete_connection (NMDevice *device,
 	                           existing_connections,
 	                           nsp_name,
 	                           nsp_name,
+	                           NULL,
 	                           TRUE);
 	g_object_set (G_OBJECT (s_wimax), NM_SETTING_WIMAX_NETWORK_NAME, nsp_name, NULL);
 

src/devices/wwan/nm-modem-broadband.c

@@ -481,6 +481,7 @@ complete_connection (NMModem *_self,
 		                           existing_connections,
 		                           NULL,
 		                           _("GSM connection"),
+		                           NULL,
 		                           FALSE); /* No IPv6 yet by default */
 
 		return TRUE;
@@ -503,6 +504,7 @@ complete_connection (NMModem *_self,
 		                           existing_connections,
 		                           NULL,
 		                           _("CDMA connection"),
+		                           NULL,
 		                           FALSE); /* No IPv6 yet by default */
 
 		return TRUE;

src/nm-manager.c

@@ -3413,6 +3413,7 @@ impl_manager_add_and_activate_connection (NMManager *self,
 		                           all_connections,
 		                           NULL,
 		                           _("VPN connection"),
+		                           NULL,
 		                           FALSE); /* No IPv6 by default for now */
 	} else {
 		/* Let each device subclass complete the connection */