1 /* $OpenBSD: print-enc.c,v 1.7 2002/02/19 19:39:40 millert Exp $ */ 2 3 /* 4 * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that: (1) source code distributions 9 * retain the above copyright notice and this paragraph in its entirety, (2) 10 * distributions including binary code include the above copyright notice and 11 * this paragraph in its entirety in the documentation or other materials 12 * provided with the distribution, and (3) all advertising materials mentioning 13 * features or use of this software display the following acknowledgement: 14 * ``This product includes software developed by the University of California, 15 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 16 * the University nor the names of its contributors may be used to endorse 17 * or promote products derived from this software without specific prior 18 * written permission. 19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 20 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 22 */ 23 24 #ifndef lint 25 static const char rcsid[] _U_ = 26 "@(#) $Header: /tcpdump/master/tcpdump/print-enc.c,v 1.1.2.2 2003/11/16 08:51:19 guy Exp $ (LBL)"; 27 #endif 28 29 #ifdef HAVE_CONFIG_H 30 #include "config.h" 31 #endif 32 33 #include <tcpdump-stdinc.h> 34 35 #include <pcap.h> 36 37 #include "interface.h" 38 #include "addrtoname.h" 39 40 #include "enc.h" 41 42 #define ENC_PRINT_TYPE(wh, xf, nam) \ 43 if ((wh) & (xf)) { \ 44 printf("%s%s", nam, (wh) == (xf) ? "): " : ","); \ 45 (wh) &= ~(xf); \ 46 } 47 48 u_int 49 enc_if_print(const struct pcap_pkthdr *h, register const u_char *p) 50 { 51 register u_int length = h->len; 52 register u_int caplen = h->caplen; 53 int flags; 54 const struct enchdr *hdr; 55 56 if (caplen < ENC_HDRLEN) { 57 printf("[|enc]"); 58 goto out; 59 } 60 61 hdr = (struct enchdr *)p; 62 flags = hdr->flags; 63 if (flags == 0) 64 printf("(unprotected): "); 65 else 66 printf("("); 67 ENC_PRINT_TYPE(flags, M_AUTH, "authentic"); 68 ENC_PRINT_TYPE(flags, M_CONF, "confidential"); 69 /* ENC_PRINT_TYPE(flags, M_TUNNEL, "tunnel"); */ 70 printf("SPI 0x%08x: ", (u_int32_t)ntohl(hdr->spi)); 71 72 length -= ENC_HDRLEN; 73 /* XXX - use the address family */ 74 ip_print(p + ENC_HDRLEN, length); 75 76 out: 77 return (ENC_HDRLEN); 78 } 79