1 /*
2  * Copyright (C) 1993-2001 by Darren Reed.
3  *
4  * See the IPFILTER.LICENCE file for details on licencing.
5  *
6  * Added redirect stuff and a variety of bug fixes. (mcn@EnGarde.com)
7  *
8  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
9  * Use is subject to license terms.
10  */
11 
12 #pragma ident	"%Z%%M%	%I%	%E% SMI"
13 
14 #include "ipf.h"
15 #include "kmem.h"
16 
17 #if !defined(lint)
18 static const char rcsid[] = "@(#)$Id: getnattype.c,v 1.3 2004/01/17 17:26:07 darrenr Exp $";
19 #endif
20 
21 
22 /*
23  * Get a nat filter type given its kernel address.
24  */
getnattype(nat,alive)25 char *getnattype(nat, alive)
26 nat_t *nat;
27 int alive;
28 {
29 	static char unknownbuf[20];
30 	ipnat_t *ipn, ipnatbuff;
31 	char *which;
32 	int type;
33 
34 	if (!nat)
35 		return "???";
36 	if (alive) {
37 		type = nat->nat_redir;
38 	} else {
39 		ipn = nat->nat_ptr;
40 		if (kmemcpy((char *)&ipnatbuff, (long)ipn, sizeof(ipnatbuff)))
41 			return "!!!";
42 		type = ipnatbuff.in_redir;
43 	}
44 
45 	switch (type)
46 	{
47 	case NAT_MAP :
48 		which = "MAP";
49 		break;
50 	case NAT_MAPBLK :
51 		which = "MAP-BLOCK";
52 		break;
53 	case NAT_REDIRECT :
54 		which = "RDR";
55 		break;
56 	case NAT_BIMAP :
57 		which = "BIMAP";
58 		break;
59 	default :
60 		sprintf(unknownbuf, "unknown(%04x)", type & 0xffffffff);
61 		which = unknownbuf;
62 		break;
63 	}
64 	return which;
65 }
66