1 /* $OpenBSD: print-rt6.c,v 1.2 2007/05/06 09:56:45 claudio Exp $ */ 2 3 4 /* 5 * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that: (1) source code distributions 10 * retain the above copyright notice and this paragraph in its entirety, (2) 11 * distributions including binary code include the above copyright notice and 12 * this paragraph in its entirety in the documentation or other materials 13 * provided with the distribution, and (3) all advertising materials mentioning 14 * features or use of this software display the following acknowledgement: 15 * ``This product includes software developed by the University of California, 16 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 17 * the University nor the names of its contributors may be used to endorse 18 * or promote products derived from this software without specific prior 19 * written permission. 20 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 21 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 23 */ 24 25 #ifndef lint 26 static const char rcsid[] = 27 "@(#) /master/usr.sbin/tcpdump/tcpdump/print-icmp.c,v 2.1 1995/02/03 18:14:42 polk Exp (LBL)"; 28 #endif 29 30 #ifdef INET6 31 32 #include <sys/param.h> 33 #include <sys/time.h> 34 #include <sys/types.h> 35 #include <sys/socket.h> 36 37 #include <net/if.h> 38 39 #include <netinet/in.h> 40 #include <netinet/if_ether.h> 41 #include <netinet/in_systm.h> 42 #include <netinet/ip.h> 43 #include <netinet/ip_icmp.h> 44 #include <netinet/ip_var.h> 45 #include <netinet/udp.h> 46 #include <netinet/udp_var.h> 47 #include <netinet/tcp.h> 48 49 #include <stdio.h> 50 51 #include <netinet/ip6.h> 52 53 #include "interface.h" 54 #include "addrtoname.h" 55 56 int 57 rt6_print(register const u_char *bp, register const u_char *bp2) 58 { 59 register const struct ip6_rthdr *dp; 60 register const struct ip6_rthdr0 *dp0; 61 register const struct ip6_hdr *ip; 62 register const u_char *ep; 63 int i, len; 64 65 dp = (struct ip6_rthdr *)bp; 66 ip = (struct ip6_hdr *)bp2; 67 len = dp->ip6r_len; 68 69 /* 'ep' points to the end of avaible data. */ 70 ep = snapend; 71 72 #if 0 73 printf("%s > %s: ", 74 ip6addr_string(&ip->ip6_src), 75 ip6addr_string(&ip->ip6_dst)); 76 #endif 77 78 TCHECK(dp->ip6r_segleft); 79 80 printf("srcrt (len=%d, ", dp->ip6r_len); 81 printf("type=%d, ", dp->ip6r_type); 82 printf("segleft=%d", dp->ip6r_segleft); 83 84 switch (dp->ip6r_type) { 85 case IPV6_RTHDR_TYPE_0: 86 dp0 = (struct ip6_rthdr0 *)dp; 87 88 TCHECK(dp0->ip6r0_reserved); 89 if (dp0->ip6r0_reserved || vflag) { 90 printf(", rsv=0x%0x", 91 (u_int32_t)ntohl(dp0->ip6r0_reserved)); 92 } 93 94 if (len % 2 == 1) 95 goto trunc; 96 len >>= 1; 97 for (i = 0; i < len; i++) { 98 struct in6_addr *addr; 99 100 addr = ((struct in6_addr *)(dp0 + 1)) + i; 101 if ((u_char *)addr > ep - sizeof(*addr)) 102 goto trunc; 103 104 printf(", [%d]%s", i, ip6addr_string((u_char *)addr)); 105 } 106 printf(")"); 107 return((dp0->ip6r0_len + 1) << 3); 108 default: 109 if (bp + ((dp->ip6r_len + 1) << 3) > ep) 110 goto trunc; 111 printf(")"); 112 return((dp->ip6r_len + 1) << 3); 113 } 114 115 trunc: 116 fputs(", [|srcrt]", stdout); 117 return 65535; /* XXX */ 118 } 119 #endif /* INET6 */ 120