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https://github.com/the-tcpdump-group/tcpdump.git
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26687fd6b9
Make sure we don't run past the end of a BGP attribute or LDP TLV when dissecting the attribute/TLV. Make some of the code do a bit more of a "step the pointer through the data"-style dissection; that was done while debugging the changes in question. It also fixes up some code to not check for more data than should actually be there. Update references to RFC 4906 from the draft, and note that RFC 4447 replaces it.
42 lines
1.9 KiB
C
42 lines
1.9 KiB
C
/*
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* Copyright (C) 1999 WIDE Project.
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* 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 the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Extensively modified by Hannes Gredler (hannes@juniper.net) for more
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* complete BGP support.
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*/
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#ifndef tcpdump_decode_prefix_h
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#define tcpdump_decode_prefix_h
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extern int decode_prefix4(const u_char *pptr, u_int itemlen, char *buf, u_int buflen);
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#ifdef INET6
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extern int decode_prefix6(const u_char *pd, u_int itemlen, char *buf, u_int buflen);
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#endif
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#endif
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