1 files changed, 129 insertions, 0 deletions
diff --git a/ip/rtm_map.c b/ip/rtm_map.c
new file mode 100644
index 0000000..8d8eafe
--- /dev/null
+++ b/ip/rtm_map.c
@@ -0,0 +1,129 @@
+/*
+ * rtm_map.c
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ *
+ * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "rt_names.h"
+#include "utils.h"
+
+char *rtnl_rtntype_n2a(int id, char *buf, int len)
+{
+
+	if (numeric) {
+		snprintf(buf, len, "%d", id);
+		return buf;
+	}
+
+	switch (id) {
+	case RTN_UNSPEC:
+		return "none";
+	case RTN_UNICAST:
+		return "unicast";
+	case RTN_LOCAL:
+		return "local";
+	case RTN_BROADCAST:
+		return "broadcast";
+	case RTN_ANYCAST:
+		return "anycast";
+	case RTN_MULTICAST:
+		return "multicast";
+	case RTN_BLACKHOLE:
+		return "blackhole";
+	case RTN_UNREACHABLE:
+		return "unreachable";
+	case RTN_PROHIBIT:
+		return "prohibit";
+	case RTN_THROW:
+		return "throw";
+	case RTN_NAT:
+		return "nat";
+	case RTN_XRESOLVE:
+		return "xresolve";
+	default:
+		snprintf(buf, len, "%d", id);
+		return buf;
+	}
+}
+
+
+int rtnl_rtntype_a2n(int *id, char *arg)
+{
+	char *end;
+	unsigned long res;
+
+	if (strcmp(arg, "local") == 0)
+		res = RTN_LOCAL;
+	else if (strcmp(arg, "nat") == 0)
+		res = RTN_NAT;
+	else if (matches(arg, "broadcast") == 0 ||
+		 strcmp(arg, "brd") == 0)
+		res = RTN_BROADCAST;
+	else if (matches(arg, "anycast") == 0)
+		res = RTN_ANYCAST;
+	else if (matches(arg, "multicast") == 0)
+		res = RTN_MULTICAST;
+	else if (matches(arg, "prohibit") == 0)
+		res = RTN_PROHIBIT;
+	else if (matches(arg, "unreachable") == 0)
+		res = RTN_UNREACHABLE;
+	else if (matches(arg, "blackhole") == 0)
+		res = RTN_BLACKHOLE;
+	else if (matches(arg, "xresolve") == 0)
+		res = RTN_XRESOLVE;
+	else if (matches(arg, "unicast") == 0)
+		res = RTN_UNICAST;
+	else if (strcmp(arg, "throw") == 0)
+		res = RTN_THROW;
+	else {
+		res = strtoul(arg, &end, 0);
+		if (!end || end == arg || *end || res > 255)
+			return -1;
+	}
+	*id = res;
+	return 0;
+}
+
+static int get_rt_realms(__u32 *realms, char *arg)
+{
+	__u32 realm = 0;
+	char *p = strchr(arg, '/');
+
+	*realms = 0;
+	if (p) {
+		*p = 0;
+		if (rtnl_rtrealm_a2n(realms, arg)) {
+			*p = '/';
+			return -1;
+		}
+		*realms <<= 16;
+		*p = '/';
+		arg = p+1;
+	}
+	if (*arg && rtnl_rtrealm_a2n(&realm, arg))
+		return -1;
+	*realms |= realm;
+	return 0;
+}
+
+int get_rt_realms_or_raw(__u32 *realms, char *arg)
+{
+	if (!get_rt_realms(realms, arg))
+		return 0;
+
+	return get_unsigned(realms, arg, 0);
+}