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93 lines
2.6 KiB
93 lines
2.6 KiB
/* |
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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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/* \summary: IPv6 routing header printer */ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <netdissect-stdinc.h> |
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#include <string.h> |
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#include "ip6.h" |
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#include "netdissect.h" |
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#include "addrtoname.h" |
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#include "extract.h" |
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int |
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rt6_print(netdissect_options *ndo, register const u_char *bp, const u_char *bp2 _U_) |
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{ |
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register const struct ip6_rthdr *dp; |
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register const struct ip6_rthdr0 *dp0; |
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register const u_char *ep; |
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int i, len; |
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register const struct in6_addr *addr; |
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dp = (const struct ip6_rthdr *)bp; |
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len = dp->ip6r_len; |
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/* 'ep' points to the end of available data. */ |
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ep = ndo->ndo_snapend; |
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ND_TCHECK(dp->ip6r_segleft); |
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ND_PRINT((ndo, "srcrt (len=%d", dp->ip6r_len)); /*)*/ |
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ND_PRINT((ndo, ", type=%d", dp->ip6r_type)); |
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ND_PRINT((ndo, ", segleft=%d", dp->ip6r_segleft)); |
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switch (dp->ip6r_type) { |
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case IPV6_RTHDR_TYPE_0: |
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case IPV6_RTHDR_TYPE_2: /* Mobile IPv6 ID-20 */ |
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dp0 = (const struct ip6_rthdr0 *)dp; |
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ND_TCHECK(dp0->ip6r0_reserved); |
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if (dp0->ip6r0_reserved || ndo->ndo_vflag) { |
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ND_PRINT((ndo, ", rsv=0x%0x", |
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EXTRACT_32BITS(&dp0->ip6r0_reserved))); |
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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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addr = &dp0->ip6r0_addr[0]; |
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for (i = 0; i < len; i++) { |
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if ((const u_char *)(addr + 1) > ep) |
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goto trunc; |
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ND_PRINT((ndo, ", [%d]%s", i, ip6addr_string(ndo, addr))); |
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addr++; |
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} |
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/*(*/ |
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ND_PRINT((ndo, ") ")); |
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return((dp0->ip6r0_len + 1) << 3); |
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break; |
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default: |
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goto trunc; |
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break; |
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} |
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trunc: |
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ND_PRINT((ndo, "[|srcrt]")); |
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return -1; |
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}
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