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      1 /*	$NetBSD: getnattype.c,v 1.3 2018/02/04 08:19:42 mrg Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2012 by Darren Reed.
      5  *
      6  * See the IPFILTER.LICENCE file for details on licencing.
      7  *
      8  * Added redirect stuff and a variety of bug fixes. (mcn (at) EnGarde.com)
      9  */
     10 #include "ipf.h"
     11 #include "kmem.h"
     12 
     13 #if !defined(lint)
     14 static __attribute__((__used__)) const char rcsid[] = "@(#)Id: getnattype.c,v 1.1.1.2 2012/07/22 13:44:38 darrenr Exp $";
     15 #endif
     16 
     17 
     18 /*
     19  * Get a nat filter type given its kernel address.
     20  */
     21 char *
     22 getnattype(nat)
     23 	nat_t *nat;
     24 {
     25 	static char unknownbuf[20];
     26 	char *which;
     27 
     28 	if (!nat)
     29 		return "???";
     30 
     31 	switch (nat->nat_redir)
     32 	{
     33 	case NAT_MAP :
     34 		which = "MAP";
     35 		break;
     36 	case NAT_MAPBLK :
     37 		which = "MAP-BLOCK";
     38 		break;
     39 	case NAT_REDIRECT :
     40 		which = "RDR";
     41 		break;
     42 	case NAT_MAP|NAT_REWRITE :
     43 		which = "RWR-MAP";
     44 		break;
     45 	case NAT_REDIRECT|NAT_REWRITE :
     46 		which = "RWR-RDR";
     47 		break;
     48 	case NAT_BIMAP :
     49 		which = "BIMAP";
     50 		break;
     51 	case NAT_REDIRECT|NAT_DIVERTUDP :
     52 		which = "DIV-RDR";
     53 		break;
     54 	case NAT_MAP|NAT_DIVERTUDP :
     55 		which = "DIV-MAP";
     56 		break;
     57 	case NAT_REDIRECT|NAT_ENCAP :
     58 		which = "ENC-RDR";
     59 		break;
     60 	case NAT_MAP|NAT_ENCAP :
     61 		which = "ENC-MAP";
     62 		break;
     63 	default :
     64 		sprintf(unknownbuf, "unknown(%04x)",
     65 			nat->nat_redir & 0xffffffff);
     66 		which = unknownbuf;
     67 		break;
     68 	}
     69 	return which;
     70 }
     71