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@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 * getnattype(nat)22getnattype(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