/* * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint static const char rcsid[] = "@(#) $Header: /cvs/OpenBSD/src/usr.sbin/tcpdump/print-enc.c,v 1.5 2000/04/18 06:06:17 angelos Exp $ (LBL)"; #endif #include #include #include #include #include #include #ifdef __STDC__ struct rtentry; #endif #include #include #include #include #include #include #include #include #include #include #include #include "interface.h" #include "addrtoname.h" #define ENC_PRINT_TYPE(wh, xf, nam) \ if ((wh) & (xf)) { \ printf("%s%s", nam, (wh) == (xf) ? "): " : ","); \ (wh) &= ~(xf); \ } void enc_if_print(u_char *user, const struct pcap_pkthdr *h, register const u_char *p) { register u_int length = h->len; register u_int caplen = h->caplen; int flags; const struct ip *ip; const struct enchdr *hdr; ts_print(&h->ts); if (caplen < ENC_HDRLEN) { printf("[|enc]"); goto out; } /* * Some printers want to get back at the link level addresses, * and/or check that they're not walking off the end of the packet. * Rather than pass them all the way down, we set these globals. */ packetp = p; snapend = p + caplen; hdr = (struct enchdr *)p; flags = hdr->flags; if (flags == 0) printf("(unprotected): "); else printf("("); ENC_PRINT_TYPE(flags, M_AUTH, "authentic"); ENC_PRINT_TYPE(flags, M_CONF, "confidential"); /* ENC_PRINT_TYPE(flags, M_TUNNEL, "tunnel"); */ printf("SPI 0x%08x: ", ntohl(hdr->spi)); length -= ENC_HDRLEN; ip = (struct ip *)(p + ENC_HDRLEN); ip_print((const u_char *)ip, length); if (xflag) default_print((const u_char *)ip, caplen - ENC_HDRLEN); out: putchar('\n'); }