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-rw-r--r--ip/rtm_map.c129
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);
+}