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path: root/src/settings/plugins/ifupdown/nms-ifupdown-parser.c
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Diffstat (limited to 'src/settings/plugins/ifupdown/nms-ifupdown-parser.c')
-rw-r--r--src/settings/plugins/ifupdown/nms-ifupdown-parser.c452
1 files changed, 229 insertions, 223 deletions
diff --git a/src/settings/plugins/ifupdown/nms-ifupdown-parser.c b/src/settings/plugins/ifupdown/nms-ifupdown-parser.c
index 369fa70d..884c6591 100644
--- a/src/settings/plugins/ifupdown/nms-ifupdown-parser.c
+++ b/src/settings/plugins/ifupdown/nms-ifupdown-parser.c
@@ -37,64 +37,42 @@
 #include "nms-ifupdown-plugin.h"
 #include "nms-ifupdown-parser.h"
 
-/*****************************************************************************/
-
-#define _NMLOG_PREFIX_NAME      "ifupdown"
-#define _NMLOG_DOMAIN           LOGD_SETTINGS
-#define _NMLOG(level, ...) \
-    nm_log ((level), _NMLOG_DOMAIN, NULL, NULL, \
-            "%s" _NM_UTILS_MACRO_FIRST (__VA_ARGS__), \
-            _NMLOG_PREFIX_NAME": " \
-            _NM_UTILS_MACRO_REST (__VA_ARGS__))
-
-/*****************************************************************************/
-
-#define _str_has_prefix(val, prefix, require_suffix) \
-	({ \
-		const char *_val = (val); \
-		\
-		   (strncmp (_val, ""prefix"", NM_STRLEN (prefix)) == 0) \
-		&& (   !(require_suffix) \
-		    || _val[NM_STRLEN (prefix)] != '\0'); \
-	})
-
-static const char*
+static const gchar*
 _ifupdownplugin_guess_connection_type (if_block *block)
 {
-	const char *ret_type = NULL;
-
-	if(nm_streq0 (ifparser_getkey (block, "inet"), "ppp"))
+	if_data *curr = block->info;
+	const gchar* ret_type = NULL;
+	const gchar* value = ifparser_getkey(block, "inet");
+	if(value && !strcmp("ppp", value)) {
 		ret_type = NM_SETTING_PPP_SETTING_NAME;
-	else {
-		if_data *ifb;
-
-		c_list_for_each_entry (ifb, &block->data_lst_head, data_lst) {
-			if (   _str_has_prefix (ifb->key, "wireless-", FALSE)
-			    || _str_has_prefix (ifb->key, "wpa-", FALSE)) {
-				ret_type = NM_SETTING_WIRELESS_SETTING_NAME;
-				break;
-			}
+	}
+
+	while(!ret_type && curr) {
+		if(!strncmp("wireless-", curr->key, strlen("wireless-")) ||
+		   !strncmp("wpa-", curr->key, strlen("wpa-"))) {
+			ret_type = NM_SETTING_WIRELESS_SETTING_NAME;
 		}
-		if(!ret_type)
-			ret_type = NM_SETTING_WIRED_SETTING_NAME;
+		curr = curr->next;
 	}
 
-	_LOGI ("guessed connection type (%s) = %s", block->name, ret_type);
+	if(!ret_type)
+		ret_type = NM_SETTING_WIRED_SETTING_NAME;
+
+	nm_log_info (LOGD_SETTINGS, "guessed connection type (%s) = %s", block->name, ret_type);
 	return ret_type;
 }
 
 struct _Mapping {
-	const char *domain;
+	const gchar *domain;
 	const gpointer target;
 };
 
 static gpointer
-map_by_mapping (struct _Mapping *mapping, const char *key)
+map_by_mapping(struct _Mapping *mapping, const gchar *key)
 {
 	struct _Mapping *curr = mapping;
-
-	while (curr->domain) {
-		if (nm_streq (curr->domain, key))
+	while(curr->domain) {
+		if(!strcmp(curr->domain, key))
 			return curr->target;
 		curr++;
 	}
@@ -102,11 +80,14 @@ map_by_mapping (struct _Mapping *mapping, const char *key)
 }
 
 static void
-update_wireless_setting_from_if_block (NMConnection *connection,
-                                       if_block *block)
+update_wireless_setting_from_if_block(NMConnection *connection,
+							   if_block *block)
 {
-	if_data *curr;
-	const char *value = ifparser_getkey (block, "inet");
+	gint wpa_l= strlen("wpa-");
+	gint wireless_l= strlen("wireless-");
+
+	if_data *curr = block->info;
+	const gchar* value = ifparser_getkey (block, "inet");
 	struct _Mapping mapping[] = {
 		{"ssid", "ssid"},
 		{"essid", "ssid"},
@@ -116,26 +97,27 @@ update_wireless_setting_from_if_block (NMConnection *connection,
 
 	NMSettingWireless *wireless_setting = NULL;
 
-	if (nm_streq0 (value, "ppp"))
+	if(value && !strcmp("ppp", value)) {
 		return;
+	}
 
-	_LOGI ("update wireless settings (%s).", block->name);
-	wireless_setting = NM_SETTING_WIRELESS (nm_setting_wireless_new ());
-
-	c_list_for_each_entry (curr, &block->data_lst_head, data_lst) {
-		if (_str_has_prefix (curr->key, "wireless-", TRUE)) {
-			const char* newkey = map_by_mapping (mapping, curr->key + NM_STRLEN ("wireless-"));
+	nm_log_info (LOGD_SETTINGS, "update wireless settings (%s).", block->name);
+	wireless_setting = NM_SETTING_WIRELESS(nm_setting_wireless_new());
 
-			_LOGI ("wireless setting key: %s='%s'", newkey, curr->data);
-			if (nm_streq0 (newkey, "ssid")) {
+	while(curr) {
+		if(strlen(curr->key) > wireless_l &&
+		   !strncmp("wireless-", curr->key, wireless_l)) {
+			const gchar* newkey = map_by_mapping(mapping, curr->key+wireless_l);
+			nm_log_info (LOGD_SETTINGS, "wireless setting key: %s='%s'", newkey, curr->data);
+			if(newkey && !strcmp("ssid", newkey)) {
 				GBytes *ssid;
-				int len = strlen (curr->data);
+				gint len = strlen(curr->data);
 
 				ssid = g_bytes_new (curr->data, len);
 				g_object_set (wireless_setting, NM_SETTING_WIRELESS_SSID, ssid, NULL);
 				g_bytes_unref (ssid);
-				_LOGI ("setting wireless ssid = %d", len);
-			} else if (nm_streq0 (newkey, "mode")) {
+				nm_log_info (LOGD_SETTINGS, "setting wireless ssid = %d", len);
+			} else if(newkey && !strcmp("mode", newkey)) {
 				if (!g_ascii_strcasecmp (curr->data, "Managed") || !g_ascii_strcasecmp (curr->data, "Auto"))
 					g_object_set (wireless_setting, NM_SETTING_WIRELESS_MODE, NM_SETTING_WIRELESS_MODE_INFRA, NULL);
 				else if (!g_ascii_strcasecmp (curr->data, "Ad-Hoc"))
@@ -143,37 +125,39 @@ update_wireless_setting_from_if_block (NMConnection *connection,
 				else if (!g_ascii_strcasecmp (curr->data, "Master"))
 					g_object_set (wireless_setting, NM_SETTING_WIRELESS_MODE, NM_SETTING_WIRELESS_MODE_AP, NULL);
 				else
-					_LOGW ("Invalid mode '%s' (not 'Ad-Hoc', 'Ap', 'Managed', or 'Auto')", curr->data);
+					nm_log_warn (LOGD_SETTINGS, "Invalid mode '%s' (not 'Ad-Hoc', 'Ap', 'Managed', or 'Auto')", curr->data);
 			} else {
-				g_object_set (wireless_setting,
-				              newkey, curr->data,
-				              NULL);
+				g_object_set(wireless_setting,
+					   newkey, curr->data,
+					   NULL);
 			}
-		} else if (_str_has_prefix (curr->key, "wpa-", TRUE)) {
-			const char* newkey = map_by_mapping (mapping, curr->key + NM_STRLEN ("wpa-"));
+		} else if(strlen(curr->key) > wpa_l &&
+				!strncmp("wpa-", curr->key, wpa_l)) {
+			const gchar* newkey = map_by_mapping(mapping, curr->key+wpa_l);
 
-			if (nm_streq0 (newkey, "ssid")) {
+			if(newkey && !strcmp("ssid", newkey)) {
 				GBytes *ssid;
-				int len = strlen (curr->data);
+				gint len = strlen(curr->data);
 
 				ssid = g_bytes_new (curr->data, len);
 				g_object_set (wireless_setting, NM_SETTING_WIRELESS_SSID, ssid, NULL);
 				g_bytes_unref (ssid);
-				_LOGI ("setting wpa ssid = %d", len);
-			} else if (newkey) {
+				nm_log_info (LOGD_SETTINGS, "setting wpa ssid = %d", len);
+			} else if(newkey) {
 
-				g_object_set (wireless_setting,
-				              newkey, curr->data,
-				              NULL);
-				_LOGI ("setting wpa newkey(%s)=data(%s)", newkey, curr->data);
+				g_object_set(wireless_setting,
+						   newkey, curr->data,
+						   NULL);
+				nm_log_info (LOGD_SETTINGS, "setting wpa newkey(%s)=data(%s)", newkey, curr->data);
 			}
 		}
+		curr = curr->next;
 	}
-	nm_connection_add_setting (connection, (NMSetting*) wireless_setting);
+	nm_connection_add_setting(connection, (NMSetting*) wireless_setting);
 }
 
-typedef char* (*IfupdownStrDupeFunc) (gconstpointer value, gpointer data);
-typedef gpointer (*IfupdownStrToTypeFunc) (const char* value);
+typedef gchar* (*IfupdownStrDupeFunc) (gpointer value, gpointer data);
+typedef gpointer (*IfupdownStrToTypeFunc) (const gchar* value);
 
 static char*
 normalize_dupe_wireless_key (gpointer value, gpointer data) {
@@ -193,7 +177,7 @@ normalize_dupe_wireless_key (gpointer value, gpointer data) {
 		result_cur += next - delim;
 		delim = next + 1;
 	}
-	if (*delim && strlen (valuec) > GPOINTER_TO_UINT (delim - valuec)) {
+	if (*delim && strlen (valuec) > GPOINTER_TO_UINT(delim - valuec)) {
 		strncpy (result_cur, delim, endc - delim);
 		result_cur += endc - delim;
 	}
@@ -203,12 +187,12 @@ normalize_dupe_wireless_key (gpointer value, gpointer data) {
 
 static char*
 normalize_dupe (gpointer value, gpointer data) {
-	return g_strdup (value);
+	return g_strdup(value);
 }
 
 static char*
 normalize_tolower (gpointer value, gpointer data) {
-	return g_ascii_strdown (value, -1);
+	return g_ascii_strdown(value, -1);
 }
 
 static char *normalize_psk (gpointer value, gpointer data)
@@ -219,25 +203,25 @@ static char *normalize_psk (gpointer value, gpointer data)
 }
 
 static gpointer
-string_to_gpointerint (const char* data)
+string_to_gpointerint(const gchar* data)
 {
-	int result = (int) strtol (data, NULL, 10);
-	return GINT_TO_POINTER (result);
+	gint result = (gint) strtol (data, NULL, 10);
+	return GINT_TO_POINTER(result);
 }
 
 static gpointer
-string_to_glist_of_strings (const char* data)
+string_to_glist_of_strings(const gchar* data)
 {
 	GSList *ret = NULL;
-	char *string = (char*) data;
-	while (string) {
-		char* next = NULL;
-		if ( (next = strchr (string, ' '))  ||
-		     (next = strchr (string, '\t')) ||
-		     (next = strchr (string, '\0')) ) {
-
-			char *part = g_strndup (string, (next - string));
-			ret = g_slist_append (ret, part);
+	gchar *string = (gchar*) data;
+	while(string) {
+		gchar* next = NULL;
+		if( (next = strchr(string, ' '))  ||
+		    (next = strchr(string, '\t')) ||
+		    (next = strchr(string, '\0')) ) {
+
+			gchar *part = g_strndup(string, (next - string));
+			ret = g_slist_append(ret, part);
 			if (*next)
 				string = next+1;
 			else
@@ -250,17 +234,19 @@ string_to_glist_of_strings (const char* data)
 }
 
 static void
-slist_free_all (gpointer slist)
+slist_free_all(gpointer slist)
 {
 	g_slist_free_full ((GSList *) slist, g_free);
 }
 
 static void
-update_wireless_security_setting_from_if_block (NMConnection *connection,
-                                                if_block *block)
+update_wireless_security_setting_from_if_block(NMConnection *connection,
+									  if_block *block)
 {
-	if_data *curr;
-	const char* value = ifparser_getkey (block, "inet");
+	gint wpa_l= strlen("wpa-");
+	gint wireless_l= strlen("wireless-");
+	if_data *curr = block->info;
+	const gchar* value = ifparser_getkey (block, "inet");
 	struct _Mapping mapping[] = {
 		{"psk", "psk"},
 		{"identity", "leap-username"},
@@ -316,93 +302,101 @@ update_wireless_security_setting_from_if_block (NMConnection *connection,
 	NMSettingWireless *s_wireless;
 	gboolean security = FALSE;
 
-	if (nm_streq0 (value, "ppp"))
+	if(value && !strcmp("ppp", value)) {
 		return;
+	}
+
+	s_wireless = nm_connection_get_setting_wireless(connection);
+	g_return_if_fail(s_wireless);
 
-	s_wireless = nm_connection_get_setting_wireless (connection);
-	g_return_if_fail (s_wireless);
+	nm_log_info (LOGD_SETTINGS, "update wireless security settings (%s).", block->name);
+	wireless_security_setting =
+		NM_SETTING_WIRELESS_SECURITY(nm_setting_wireless_security_new());
 
-	_LOGI ("update wireless security settings (%s).", block->name);
-	wireless_security_setting = NM_SETTING_WIRELESS_SECURITY (nm_setting_wireless_security_new ());
+	while(curr) {
+		if(strlen(curr->key) > wireless_l &&
+		   !strncmp("wireless-", curr->key, wireless_l)) {
 
-	c_list_for_each_entry (curr, &block->data_lst_head, data_lst) {
-		if (_str_has_prefix (curr->key, "wireless-", TRUE)) {
-			const char *key = curr->key + NM_STRLEN ("wireless-");
-			char *property_value = NULL;
+			gchar *property_value = NULL;
 			gpointer typed_property_value = NULL;
-			const char* newkey = map_by_mapping (mapping, key);
-			IfupdownStrDupeFunc dupe_func = map_by_mapping (dupe_mapping, key);
-			IfupdownStrToTypeFunc type_map_func = map_by_mapping (type_mapping, key);
-			GFreeFunc free_func = map_by_mapping (free_type_mapping, key);
-			if (!newkey || !dupe_func)
+			const gchar* newkey = map_by_mapping(mapping, curr->key+wireless_l);
+			IfupdownStrDupeFunc dupe_func = map_by_mapping (dupe_mapping, curr->key+wireless_l);
+			IfupdownStrToTypeFunc type_map_func = map_by_mapping (type_mapping, curr->key+wireless_l);
+			GFreeFunc free_func = map_by_mapping (free_type_mapping, curr->key+wireless_l);
+			if(!newkey || !dupe_func)
 				goto next;
 
 			property_value = (*dupe_func) (curr->data, connection);
-			_LOGI ("setting wireless security key: %s=%s",
-			       newkey, property_value);
+			nm_log_info (LOGD_SETTINGS, "setting wireless security key: %s=%s",
+			             newkey, property_value);
 
 			if (type_map_func) {
 				errno = 0;
 				typed_property_value = (*type_map_func) (property_value);
-				if (errno)
+				if(errno)
 					goto wireless_next;
 			}
 
-			g_object_set (wireless_security_setting,
-			              newkey, typed_property_value ?: property_value,
-			              NULL);
+			g_object_set(wireless_security_setting,
+					   newkey, typed_property_value ?: property_value,
+					   NULL);
 			security = TRUE;
 
-wireless_next:
-			g_free (property_value);
+		wireless_next:
+			g_free(property_value);
 			if (typed_property_value && free_func)
 				(*free_func) (typed_property_value);
 
-		} else if (_str_has_prefix (curr->key, "wpa-", TRUE)) {
-			const char *key = curr->key + NM_STRLEN ("wpa-");
-			char *property_value = NULL;
+		} else if(strlen(curr->key) > wpa_l &&
+				!strncmp("wpa-", curr->key, wpa_l)) {
+
+			gchar *property_value = NULL;
 			gpointer typed_property_value = NULL;
-			const char* newkey = map_by_mapping (mapping, key);
-			IfupdownStrDupeFunc dupe_func = map_by_mapping (dupe_mapping, key);
-			IfupdownStrToTypeFunc type_map_func = map_by_mapping (type_mapping, key);
-			GFreeFunc free_func = map_by_mapping (free_type_mapping, key);
-			if (!newkey || !dupe_func)
+			const gchar* newkey = map_by_mapping(mapping, curr->key+wpa_l);
+			IfupdownStrDupeFunc dupe_func = map_by_mapping (dupe_mapping, curr->key+wpa_l);
+			IfupdownStrToTypeFunc type_map_func = map_by_mapping (type_mapping, curr->key+wpa_l);
+			GFreeFunc free_func = map_by_mapping (free_type_mapping, curr->key+wpa_l);
+			if(!newkey || !dupe_func)
 				goto next;
 
 			property_value = (*dupe_func) (curr->data, connection);
-			_LOGI ("setting wpa security key: %s=%s",
-			       newkey,
-			       NM_IN_STRSET (newkey, "key",
-			                             "leap-password",
-			                             "pin",
-			                             "psk",
-			                             "wep-key0",
-			                             "wep-key1",
-			                             "wep-key2",
-			                             "wep-key3")
-			         ? "<omitted>"
-			         : property_value
-			       );
+			nm_log_info (LOGD_SETTINGS, "setting wpa security key: %s=%s",
+			             newkey,
+#ifdef DEBUG_SECRETS
+			             property_value
+#else /* DEBUG_SECRETS */
+			             !strcmp("key", newkey) ||
+			             !strcmp("leap-password", newkey) ||
+			             !strcmp("pin", newkey) ||
+			             !strcmp("psk", newkey) ||
+			             !strcmp("wep-key0", newkey) ||
+			             !strcmp("wep-key1", newkey) ||
+			             !strcmp("wep-key2", newkey) ||
+			             !strcmp("wep-key3", newkey) ||
+			             NULL ?
+			             "<omitted>" : property_value
+#endif /* DEBUG_SECRETS */
+			             );
 
 			if (type_map_func) {
 				errno = 0;
 				typed_property_value = (*type_map_func) (property_value);
-				if (errno)
+				if(errno)
 					goto wpa_next;
 			}
 
-			g_object_set (wireless_security_setting,
-			              newkey, typed_property_value ?: property_value,
-			              NULL);
+			g_object_set(wireless_security_setting,
+					   newkey, typed_property_value ?: property_value,
+					   NULL);
 			security = TRUE;
 
-wpa_next:
-			g_free (property_value);
+		wpa_next:
+			g_free(property_value);
 			if (free_func && typed_property_value)
 				(*free_func) (typed_property_value);
 		}
-next:
-		;
+	next:
+		curr = curr->next;
 	}
 
 	if (security)
@@ -410,52 +404,51 @@ next:
 }
 
 static void
-update_wired_setting_from_if_block (NMConnection *connection,
-                                    if_block *block)
+update_wired_setting_from_if_block(NMConnection *connection,
+							if_block *block)
 {
 	NMSettingWired *s_wired = NULL;
-	s_wired = NM_SETTING_WIRED (nm_setting_wired_new ());
-	nm_connection_add_setting (connection, NM_SETTING (s_wired));
+	s_wired = NM_SETTING_WIRED(nm_setting_wired_new());
+	nm_connection_add_setting(connection, NM_SETTING(s_wired));
 }
 
 static void
 ifupdown_ip4_add_dns (NMSettingIPConfig *s_ip4, const char *dns)
 {
 	guint32 addr;
-	gs_strfreev char **list = NULL;
-	char **iter;
+	char **list, **iter;
 
 	if (dns == NULL)
 		return;
 
 	list = g_strsplit_set (dns, " \t", -1);
 	for (iter = list; iter && *iter; iter++) {
-		if ((*iter)[0] == '\0')
+		g_strstrip (*iter);
+		if (g_ascii_isspace (*iter[0]))
 			continue;
 		if (!inet_pton (AF_INET, *iter, &addr)) {
-			_LOGW ("    ignoring invalid nameserver '%s'", *iter);
+			nm_log_warn (LOGD_SETTINGS, "    ignoring invalid nameserver '%s'", *iter);
 			continue;
 		}
 
 		if (!nm_setting_ip_config_add_dns (s_ip4, *iter))
-			_LOGW ("    duplicate DNS domain '%s'", *iter);
+			nm_log_warn (LOGD_SETTINGS, "    duplicate DNS domain '%s'", *iter);
 	}
+	g_strfreev (list);
 }
 
 static gboolean
-update_ip4_setting_from_if_block (NMConnection *connection,
-                                  if_block *block,
-                                  GError **error)
+update_ip4_setting_from_if_block(NMConnection *connection,
+						   if_block *block,
+						   GError **error)
 {
 
-	gs_unref_object NMSettingIPConfig *s_ip4 = NM_SETTING_IP_CONFIG (nm_setting_ip4_config_new ());
-	const char *type = ifparser_getkey (block, "inet");
+	NMSettingIPConfig *s_ip4 = NM_SETTING_IP_CONFIG (nm_setting_ip4_config_new());
+	const char *type = ifparser_getkey(block, "inet");
+	gboolean is_static = type && !strcmp("static", type);
 
-	if (!nm_streq0 (type, "static")) {
-		g_object_set (s_ip4,
-		              NM_SETTING_IP_CONFIG_METHOD,
-		              NM_SETTING_IP4_CONFIG_METHOD_AUTO,
-		              NULL);
+	if (!is_static) {
+		g_object_set (s_ip4, NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_AUTO, NULL);
 	} else {
 		guint32 tmp_mask;
 		NMIPAddress *addr;
@@ -465,6 +458,7 @@ update_ip4_setting_from_if_block (NMConnection *connection,
 		const char *nameserver_v;
 		const char *nameservers_v;
 		const char *search_v;
+		char **list, **iter;
 		guint32 netmask_int = 32;
 
 		/* Address */
@@ -472,7 +466,7 @@ update_ip4_setting_from_if_block (NMConnection *connection,
 		if (!address_v) {
 			g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
 			             "Missing IPv4 address");
-			return FALSE;
+			goto error;
 		}
 
 		/* mask/prefix */
@@ -482,8 +476,8 @@ update_ip4_setting_from_if_block (NMConnection *connection,
 				netmask_int = atoi (netmask_v);
 			} else if (!inet_pton (AF_INET, netmask_v, &tmp_mask)) {
 				g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
-				             "Invalid IPv4 netmask '%s'", netmask_v);
-				return FALSE;
+						   "Invalid IPv4 netmask '%s'", netmask_v);
+				goto error;
 			} else {
 				netmask_int = nm_utils_ip4_netmask_to_prefix (tmp_mask);
 			}
@@ -492,13 +486,13 @@ update_ip4_setting_from_if_block (NMConnection *connection,
 		/* Add the new address to the setting */
 		addr = nm_ip_address_new (AF_INET, address_v, netmask_int, error);
 		if (!addr)
-			return FALSE;
+			goto error;
 
 		if (nm_setting_ip_config_add_address (s_ip4, addr)) {
-			_LOGI ("addresses count: %d",
-			       nm_setting_ip_config_get_num_addresses (s_ip4));
+			nm_log_info (LOGD_SETTINGS, "addresses count: %d",
+			             nm_setting_ip_config_get_num_addresses (s_ip4));
 		} else {
-			_LOGI ("ignoring duplicate IP4 address");
+			nm_log_info (LOGD_SETTINGS, "ignoring duplicate IP4 address");
 		}
 		nm_ip_address_unref (addr);
 
@@ -508,7 +502,7 @@ update_ip4_setting_from_if_block (NMConnection *connection,
 			if (!nm_utils_ipaddr_valid (AF_INET, gateway_v)) {
 				g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
 				             "Invalid IPv4 gateway '%s'", gateway_v);
-				return FALSE;
+				goto error;
 			}
 			if (!nm_setting_ip_config_get_gateway (s_ip4))
 				g_object_set (s_ip4, NM_SETTING_IP_CONFIG_GATEWAY, gateway_v, NULL);
@@ -521,67 +515,70 @@ update_ip4_setting_from_if_block (NMConnection *connection,
 		ifupdown_ip4_add_dns (s_ip4, nameservers_v);
 
 		if (!nm_setting_ip_config_get_num_dns (s_ip4))
-			_LOGI ("No dns-nameserver configured in /etc/network/interfaces");
+			nm_log_info (LOGD_SETTINGS, "No dns-nameserver configured in /etc/network/interfaces");
 
 		/* DNS searches */
 		search_v = ifparser_getkey (block, "dns-search");
 		if (search_v) {
-			gs_strfreev char **list = NULL;
-			char **iter;
-
 			list = g_strsplit_set (search_v, " \t", -1);
 			for (iter = list; iter && *iter; iter++) {
-				if ((*iter)[0] == '\0')
+				g_strstrip (*iter);
+				if (g_ascii_isspace (*iter[0]))
 					continue;
 				if (!nm_setting_ip_config_add_dns_search (s_ip4, *iter))
-					_LOGW ("    duplicate DNS domain '%s'", *iter);
+					nm_log_warn (LOGD_SETTINGS, "    duplicate DNS domain '%s'", *iter);
 			}
+			g_strfreev (list);
 		}
 
 		g_object_set (s_ip4, NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_MANUAL, NULL);
 	}
 
-	nm_connection_add_setting (connection, NM_SETTING (g_steal_pointer (&s_ip4)));
+	nm_connection_add_setting (connection, NM_SETTING (s_ip4));
 	return TRUE;
+
+error:
+	g_object_unref (s_ip4);
+	return FALSE;
 }
 
 static void
 ifupdown_ip6_add_dns (NMSettingIPConfig *s_ip6, const char *dns)
 {
 	struct in6_addr addr;
-	gs_strfreev char **list = NULL;
-	char **iter;
+	char **list, **iter;
 
 	if (dns == NULL)
 		return;
 
 	list = g_strsplit_set (dns, " \t", -1);
 	for (iter = list; iter && *iter; iter++) {
-		if ((*iter)[0] == '\0')
+		g_strstrip (*iter);
+		if (g_ascii_isspace (*iter[0]))
 			continue;
 		if (!inet_pton (AF_INET6, *iter, &addr)) {
-			_LOGW ("    ignoring invalid nameserver '%s'", *iter);
+			nm_log_warn (LOGD_SETTINGS, "    ignoring invalid nameserver '%s'", *iter);
 			continue;
 		}
 
 		if (!nm_setting_ip_config_add_dns (s_ip6, *iter))
-			_LOGW ("    duplicate DNS domain '%s'", *iter);
+			nm_log_warn (LOGD_SETTINGS, "    duplicate DNS domain '%s'", *iter);
 	}
+	g_strfreev (list);
 }
 
 static gboolean
-update_ip6_setting_from_if_block (NMConnection *connection,
-                                  if_block *block,
-                                  GError **error)
+update_ip6_setting_from_if_block(NMConnection *connection,
+						   if_block *block,
+						   GError **error)
 {
-	gs_unref_object NMSettingIPConfig *s_ip6 = NM_SETTING_IP_CONFIG (nm_setting_ip6_config_new ());
-	const char *type = ifparser_getkey (block, "inet6");
+	NMSettingIPConfig *s_ip6 = NM_SETTING_IP_CONFIG (nm_setting_ip6_config_new());
+	const char *type = ifparser_getkey(block, "inet6");
+	gboolean is_static = type && (!strcmp("static", type) ||
+							!strcmp("v4tunnel", type));
 
-	if (!NM_IN_STRSET (type, "static", "v4tunnel")) {
-		g_object_set (s_ip6,
-		              NM_SETTING_IP_CONFIG_METHOD,
-		              NM_SETTING_IP6_CONFIG_METHOD_AUTO,
-		              NULL);
+	if (!is_static) {
+		g_object_set(s_ip6, NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_AUTO, NULL);
 	} else {
 		NMIPAddress *addr;
 		const char *address_v;
@@ -591,30 +588,31 @@ update_ip6_setting_from_if_block (NMConnection *connection,
 		const char *nameservers_v;
 		const char *search_v;
 		int prefix_int = 128;
+		char **list, **iter;
 
 		/* Address */
-		address_v = ifparser_getkey (block, "address");
+		address_v = ifparser_getkey(block, "address");
 		if (!address_v) {
 			g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
 			             "Missing IPv6 address");
-			return FALSE;
+			goto error;
 		}
 
 		/* Prefix */
-		prefix_v = ifparser_getkey (block, "netmask");
+		prefix_v = ifparser_getkey(block, "netmask");
 		if (prefix_v)
 			prefix_int = g_ascii_strtoll (prefix_v, NULL, 10);
 
 		/* Add the new address to the setting */
 		addr = nm_ip_address_new (AF_INET6, address_v, prefix_int, error);
 		if (!addr)
-			return FALSE;
+			goto error;
 
 		if (nm_setting_ip_config_add_address (s_ip6, addr)) {
-			_LOGI ("addresses count: %d",
+			nm_log_info (LOGD_SETTINGS, "addresses count: %d",
 			             nm_setting_ip_config_get_num_addresses (s_ip6));
 		} else {
-			_LOGI ("ignoring duplicate IP6 address");
+			nm_log_info (LOGD_SETTINGS, "ignoring duplicate IP6 address");
 		}
 		nm_ip_address_unref (addr);
 
@@ -624,34 +622,33 @@ update_ip6_setting_from_if_block (NMConnection *connection,
 			if (!nm_utils_ipaddr_valid (AF_INET6, gateway_v)) {
 				g_set_error (error, NM_SETTINGS_ERROR, NM_SETTINGS_ERROR_INVALID_CONNECTION,
 				             "Invalid IPv6 gateway '%s'", gateway_v);
-				return FALSE;
+				goto error;
 			}
 			if (!nm_setting_ip_config_get_gateway (s_ip6))
 				g_object_set (s_ip6, NM_SETTING_IP_CONFIG_GATEWAY, gateway_v, NULL);
 		}
 
-		nameserver_v = ifparser_getkey (block, "dns-nameserver");
+		nameserver_v = ifparser_getkey(block, "dns-nameserver");
 		ifupdown_ip6_add_dns (s_ip6, nameserver_v);
 
-		nameservers_v = ifparser_getkey (block, "dns-nameservers");
+		nameservers_v = ifparser_getkey(block, "dns-nameservers");
 		ifupdown_ip6_add_dns (s_ip6, nameservers_v);
 
 		if (!nm_setting_ip_config_get_num_dns (s_ip6))
-			_LOGI ("No dns-nameserver configured in /etc/network/interfaces");
+			nm_log_info (LOGD_SETTINGS, "No dns-nameserver configured in /etc/network/interfaces");
 
 		/* DNS searches */
 		search_v = ifparser_getkey (block, "dns-search");
 		if (search_v) {
-			gs_strfreev char **list = NULL;
-			char **iter;
-
 			list = g_strsplit_set (search_v, " \t", -1);
 			for (iter = list; iter && *iter; iter++) {
-				if ((*iter)[0] == '\0')
+				g_strstrip (*iter);
+				if (isblank (*iter[0]))
 					continue;
 				if (!nm_setting_ip_config_add_dns_search (s_ip6, *iter))
-					_LOGW ("    duplicate DNS domain '%s'", *iter);
+					nm_log_warn (LOGD_SETTINGS, "    duplicate DNS domain '%s'", *iter);
 			}
+			g_strfreev (list);
 		}
 
 		g_object_set (s_ip6,
@@ -659,8 +656,12 @@ update_ip6_setting_from_if_block (NMConnection *connection,
 		              NULL);
 	}
 
-	nm_connection_add_setting (connection, NM_SETTING (g_steal_pointer (&s_ip6)));
+	nm_connection_add_setting (connection, NM_SETTING (s_ip6));
 	return TRUE;
+
+error:
+	g_object_unref (s_ip6);
+	return FALSE;
 }
 
 gboolean
@@ -668,22 +669,25 @@ ifupdown_update_connection_from_if_block (NMConnection *connection,
                                           if_block *block,
                                           GError **error)
 {
-	const char *type;
-	gs_free char *idstr = NULL;
-	gs_free char *uuid = NULL;
+	const char *type = NULL;
+	char *idstr = NULL;
+	char *uuid_base = NULL;
+	char *uuid = NULL;
 	NMSettingConnection *s_con;
 	gboolean success = FALSE;
 
 	s_con = nm_connection_get_setting_connection (connection);
-	if (!s_con) {
-		s_con = NM_SETTING_CONNECTION (nm_setting_connection_new ());
+	if(!s_con) {
+		s_con = NM_SETTING_CONNECTION (nm_setting_connection_new());
+		g_assert (s_con);
 		nm_connection_add_setting (connection, NM_SETTING (s_con));
 	}
 
 	type = _ifupdownplugin_guess_connection_type (block);
 	idstr = g_strconcat ("Ifupdown (", block->name, ")", NULL);
+	uuid_base = idstr;
 
-	uuid = nm_utils_uuid_generate_from_string (idstr, -1, NM_UTILS_UUID_TYPE_LEGACY, NULL);
+	uuid = nm_utils_uuid_generate_from_string (uuid_base, -1, NM_UTILS_UUID_TYPE_LEGACY, NULL);
 	g_object_set (s_con,
 	              NM_SETTING_CONNECTION_TYPE, type,
 	              NM_SETTING_CONNECTION_INTERFACE_NAME, block->name,
@@ -692,18 +696,19 @@ ifupdown_update_connection_from_if_block (NMConnection *connection,
 	              NM_SETTING_CONNECTION_READ_ONLY, TRUE,
 	              NM_SETTING_CONNECTION_AUTOCONNECT, FALSE,
 	              NULL);
+	g_free (uuid);
 
-	_LOGI ("update_connection_setting_from_if_block: name:%s, type:%s, id:%s, uuid: %s",
-	       block->name, type, idstr, nm_setting_connection_get_uuid (s_con));
+	nm_log_info (LOGD_SETTINGS, "update_connection_setting_from_if_block: name:%s, type:%s, id:%s, uuid: %s",
+	             block->name, type, idstr, nm_setting_connection_get_uuid (s_con));
 
-	if (nm_streq (type, NM_SETTING_WIRED_SETTING_NAME))
+	if (!strcmp (NM_SETTING_WIRED_SETTING_NAME, type))
 		update_wired_setting_from_if_block (connection, block);
-	else if (nm_streq (type, NM_SETTING_WIRELESS_SETTING_NAME)) {
+	else if (!strcmp (NM_SETTING_WIRELESS_SETTING_NAME, type)) {
 		update_wireless_setting_from_if_block (connection, block);
 		update_wireless_security_setting_from_if_block (connection, block);
 	}
 
-	if (ifparser_haskey (block, "inet6"))
+	if (ifparser_haskey(block, "inet6"))
 		success = update_ip6_setting_from_if_block (connection, block, error);
 	else
 		success = update_ip4_setting_from_if_block (connection, block, error);
@@ -711,5 +716,6 @@ ifupdown_update_connection_from_if_block (NMConnection *connection,
 	if (success == TRUE)
 		success = nm_connection_verify (connection, error);
 
+	g_free (idstr);
 	return success;
 }