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/* 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 * const keywords[] = {
"local", "nat", "broadcast", "brd", "anycast",
"multicast", "prohibit", "unreachable", "blackhole",
"xresolve", "unicast", "throw", NULL
};
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_substr_array(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;
}
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