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