mirror of
https://github.com/sheumann/hush.git
synced 2024-12-25 03:32:18 +00:00
117 lines
2.5 KiB
C
117 lines
2.5 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* 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* FAST_FUNC rtnl_rtntype_n2a(int id, char *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:
|
|
/* buf is SPRINT_BSIZE big */
|
|
sprintf(buf, "%d", id);
|
|
return buf;
|
|
}
|
|
}
|
|
|
|
|
|
int FAST_FUNC 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 == arg || *end || res > 255)
|
|
return -1;
|
|
}
|
|
*id = res;
|
|
return 0;
|
|
}
|
|
|
|
int FAST_FUNC 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;
|
|
}
|