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https://github.com/the-tcpdump-group/tcpdump.git
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c9d84d15c5
Hope I did not break anything. Portability on IPv4-only node needs checking, I'll do this very soon. (sorry for rather jumbo commit) XXx what is _FAVOR_BSD?
117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/*
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* Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"@(#) /master/usr.sbin/tcpdump/tcpdump/print-icmp.c,v 2.1 1995/02/03 18:14:42 polk Exp (LBL)";
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#endif
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#ifdef INET6
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_icmp.h>
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#include <netinet/ip_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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#include <netinet/tcp.h>
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#include <stdio.h>
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#include <netinet/ip6.h>
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#include "interface.h"
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#include "addrtoname.h"
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int
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rt6_print(register const u_char *bp, register const u_char *bp2)
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{
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register const struct ip6_rthdr0 *dp;
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register const struct ip6_hdr *ip;
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register const u_char *ep;
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u_long bitmap = 0x0800;
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u_long slmap;
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int i, len;
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#if 0
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#define TCHECK(var) if ((u_char *)&(var) >= ep - sizeof(var)) goto trunc
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#endif
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dp = (struct ip6_rthdr0 *)bp;
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ip = (struct ip6_hdr *)bp2;
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len = dp->ip6r0_len;
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/* 'ep' points to the end of avaible data. */
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ep = snapend;
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printf("%s > %s: ",
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ip6addr_string(&ip->ip6_src),
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ip6addr_string(&ip->ip6_dst));
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TCHECK(dp->ip6r0_slmap[2]);
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printf("srcrt (len=%d, ", dp->ip6r0_len);
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printf("type=%d, ", dp->ip6r0_type);
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printf("segleft=%d, ", dp->ip6r0_segleft);
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if (dp->ip6r0_type != 0)
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goto trunc;
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slmap = (dp->ip6r0_slmap[0] << 16)
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| (dp->ip6r0_slmap[1] << 8)
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| (dp->ip6r0_slmap[2]);
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printf("bitmap=");
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for (i = 24; i > 0; i--) {
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if (slmap & bitmap)
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printf("S");
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else
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printf("L");
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bitmap >>= 1;
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}
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if (len % 2 == 1)
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goto trunc;
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len >>= 1;
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printf(", ");
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for (i = 0; i < len; i++) {
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if ((((u_char *)&(dp->ip6r0_reserved)) + sizeof(u_long)
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+ (i<<4)) > ep) goto trunc;
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printf(" [%d]%s", i,
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ip6addr_string(((u_char *)&(dp->ip6r0_reserved)) +
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sizeof(u_long) + (i<<4)));
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if (i != len - 1)
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printf(", ");
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}
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printf(")");
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return((dp->ip6r0_len + 1) << 3);
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trunc:
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fputs("[|srcrt]", stdout);
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return 65535;
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#undef TCHECK
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}
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#endif /* INET6 */
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