/*
 * Copyright (C) 2012 by Darren Reed.
 *
 * See the IPFILTER.LICENCE file for details on licencing.
 *
 * Added redirect stuff and a variety of bug fixes. (mcn@EnGarde.com)
 */
#include "ipf.h"
#include "kmem.h"



/*
 * Get a nat filter type given its kernel address.
 */
char *
getnattype(nat_t *nat)
{
        static char unknownbuf[20];
        char *which;

        if (!nat)
                return ("???");

        switch (nat->nat_redir)
        {
        case NAT_MAP :
                which = "MAP";
                break;
        case NAT_MAPBLK :
                which = "MAP-BLOCK";
                break;
        case NAT_REDIRECT :
                which = "RDR";
                break;
        case NAT_MAP|NAT_REWRITE :
                which = "RWR-MAP";
                break;
        case NAT_REDIRECT|NAT_REWRITE :
                which = "RWR-RDR";
                break;
        case NAT_BIMAP :
                which = "BIMAP";
                break;
        case NAT_REDIRECT|NAT_DIVERTUDP :
                which = "DIV-RDR";
                break;
        case NAT_MAP|NAT_DIVERTUDP :
                which = "DIV-MAP";
                break;
        case NAT_REDIRECT|NAT_ENCAP :
                which = "ENC-RDR";
                break;
        case NAT_MAP|NAT_ENCAP :
                which = "ENC-MAP";
                break;
        default :
                snprintf(unknownbuf, sizeof(unknownbuf), "unknown(%04x)",
                        nat->nat_redir & 0xffffffff);
                which = unknownbuf;
                break;
        }
        return (which);
}