device: support match.interface-name

Add support for matching a connection with the new
match.interface-name property.

src/devices/nm-device.c

@@ -5511,6 +5511,9 @@ check_connection_compatible (NMDevice *self, NMConnection *connection, GError **
 	gs_free_error GError *local = NULL;
 	gs_free char *conn_iface = NULL;
 	NMDeviceClass *klass;
+	const char *const *patterns;
+	NMSettingMatch *s_match;
+	guint num_patterns;
 
 	klass = NM_DEVICE_GET_CLASS (self);
 	if (klass->connection_type_check_compatible) {
@@ -5534,15 +5537,23 @@ check_connection_compatible (NMDevice *self, NMConnection *connection, GError **
 			                    "cannot get interface name due to %s", local->message);
 			return FALSE;
 		}
-		return TRUE;
+	} else if (!nm_streq0 (conn_iface, device_iface)) {
-	}
-
-	if (!nm_streq0 (conn_iface, device_iface)) {
 		nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
 		                            "mismatching interface name");
 		return FALSE;
 	}
 
+	s_match = (NMSettingMatch *) nm_connection_get_setting (connection,
+	                                                        NM_TYPE_SETTING_MATCH);
+	if (s_match) {
+		patterns = nm_setting_match_get_interface_names (s_match, &num_patterns);
+		if (!nm_wildcard_match_check (device_iface, patterns, num_patterns)) {
+			nm_utils_error_set_literal (error, NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+			                            "device does not satisfy match.interface-name property");
+			return FALSE;
+		}
+	}
+
 	return TRUE;
 }
 

src/nm-core-utils.c

@@ -25,6 +25,7 @@
 
 #include <errno.h>
 #include <fcntl.h>
+#include <fnmatch.h>
 #include <string.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -1730,6 +1731,33 @@ nm_match_spec_join (GSList *specs)
 	return g_string_free (str, FALSE);
 }
 
+gboolean
+nm_wildcard_match_check (const char *str,
+                         const char *const *patterns,
+                         guint num_patterns)
+{
+	guint i, neg = 0;
+
+	for (i = 0; i < num_patterns; i++) {
+		if (patterns[i][0] == '!') {
+			neg++;
+			if (!fnmatch (patterns[i] + 1, str, 0))
+				return FALSE;
+		}
+	}
+
+	if (neg == num_patterns)
+		return TRUE;
+
+	for (i = 0; i < num_patterns; i++) {
+		if (   patterns[i][0] != '!'
+		    && !fnmatch (patterns[i], str, 0))
+			return TRUE;
+	}
+
+	return FALSE;
+}
+
 /*****************************************************************************/
 
 char *

src/nm-core-utils.h

@@ -215,6 +215,10 @@ NMMatchSpecMatchType nm_match_spec_config (const GSList *specs,
 GSList *nm_match_spec_split (const char *value);
 char *nm_match_spec_join (GSList *specs);
 
+gboolean nm_wildcard_match_check (const char *str,
+                                  const char *const *patterns,
+                                  guint num_patterns);
+
 /*****************************************************************************/
 
 const char *nm_utils_get_ip_config_method (NMConnection *connection,