1 files changed, 118 insertions, 0 deletions
diff --git a/networking/libiproute/rtm_map.c b/networking/libiproute/rtm_map.c
new file mode 100644
index 0000000..ca2f443
--- /dev/null
+++ b/networking/libiproute/rtm_map.c
@@ -0,0 +1,118 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * 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 "libbb.h"
+#include "rt_names.h"
+#include "utils.h"
+
+const char *rtnl_rtntype_n2a(int id, char *buf, int len)
+{
+	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)
+{
+	static const char keywords[] ALIGN1 =
+		"local\0""nat\0""broadcast\0""brd\0""anycast\0"
+		"multicast\0""prohibit\0""unreachable\0""blackhole\0"
+		"xresolve\0""unicast\0""throw\0";
+	enum {
+		ARG_local = 1, ARG_nat, ARG_broadcast, ARG_brd, ARG_anycast,
+		ARG_multicast, ARG_prohibit, ARG_unreachable, ARG_blackhole,
+		ARG_xresolve, ARG_unicast, ARG_throw
+	};
+	const smalluint key = index_in_substrings(keywords, arg) + 1;
+	char *end;
+	unsigned long res;
+
+	if (key == ARG_local)
+		res = RTN_LOCAL;
+	else if (key == ARG_nat)
+		res = RTN_NAT;
+	else if (key == ARG_broadcast || key == ARG_brd)
+		res = RTN_BROADCAST;
+	else if (key == ARG_anycast)
+		res = RTN_ANYCAST;
+	else if (key == ARG_multicast)
+		res = RTN_MULTICAST;
+	else if (key == ARG_prohibit)
+		res = RTN_PROHIBIT;
+	else if (key == ARG_unreachable)
+		res = RTN_UNREACHABLE;
+	else if (key == ARG_blackhole)
+		res = RTN_BLACKHOLE;
+	else if (key == ARG_xresolve)
+		res = RTN_XRESOLVE;
+	else if (key == ARG_unicast)
+		res = RTN_UNICAST;
+	else if (key == ARG_throw)
+		res = RTN_THROW;
+	else {
+		res = strtoul(arg, &end, 0);
+		if (!end || end == arg || *end || res > 255)
+			return -1;
+	}
+	*id = res;
+	return 0;
+}
+
+int get_rt_realms(uint32_t *realms, char *arg)
+{
+	uint32_t 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;
+}