names: add linkinfo kind to type mapping functions

src/names.c

@@ -94,6 +94,40 @@ ni_linktype_type_to_name(unsigned int type)
 	return ni_format_uint_mapped(type, __linktype_names);
 }
 
+/*
+ * Map interface link layer types to strings and vice versa
+ */
+static const ni_intmap_t	__linkinfo_kind_names[] = {
+	{ "bridge",		NI_IFTYPE_BRIDGE },
+	{ "bond",		NI_IFTYPE_BOND },
+	{ "vlan",		NI_IFTYPE_VLAN },
+	{ "macvlan",		NI_IFTYPE_MACVLAN },
+	{ "macvtap",		NI_IFTYPE_MACVTAP },
+	{ "tun",		NI_IFTYPE_TUN },
+	{ "dummy",		NI_IFTYPE_DUMMY },
+	{ "sit",		NI_IFTYPE_SIT },
+	{ "ipip",		NI_IFTYPE_IPIP },
+	{ "gre",		NI_IFTYPE_GRE },
+
+	{ NULL }
+};
+
+int
+ni_linkinfo_kind_to_type(const char *name)
+{
+	unsigned int value;
+
+	if (ni_parse_uint_mapped(name, __linkinfo_kind_names, &value) < 0)
+		return -1;
+	return value;
+}
+
+const char *
+ni_linkinfo_type_to_kind(unsigned int type)
+{
+	return ni_format_uint_mapped(type, __linkinfo_kind_names);
+}
+
 /*
  * Map addrconf name to type constant and vice versa
  */