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108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*
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* daemon/cachedump.h - dump the cache to text format.
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*
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* Copyright (c) 2008, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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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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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This file contains functions to read and write the cache(s)
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* to text format.
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*
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* The format of the file is as follows:
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* [RRset cache]
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* [Message cache]
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* EOF -- fixed string "EOF" before end of the file.
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*
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* The RRset cache is:
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* START_RRSET_CACHE
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* [rrset]*
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* END_RRSET_CACHE
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*
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* rrset is:
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* ;rrset [nsec_apex] TTL rr_count rrsig_count trust security
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* resource records, one per line, in zonefile format
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* rrsig records, one per line, in zonefile format
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* If the text conversion fails, BADRR is printed on the line.
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*
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* The Message cache is:
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* START_MSG_CACHE
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* [msg]*
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* END_MSG_CACHE
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*
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* msg is:
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* msg name class type flags qdcount ttl security an ns ar
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* list of rrset references, one per line. If conversion fails, BADREF
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* reference is:
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* name class type flags
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*
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* Expired cache entries are not printed.
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*/
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#ifndef DAEMON_DUMPCACHE_H
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#define DAEMON_DUMPCACHE_H
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struct worker;
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/**
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* Dump cache(s) to text
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* @param ssl: to print to
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* @param worker: worker that is available (buffers, etc) and has
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* ptrs to the caches.
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* @return false on ssl print error.
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*/
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int dump_cache(SSL* ssl, struct worker* worker);
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/**
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* Load cache(s) from text
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* @param ssl: to read from
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* @param worker: worker that is available (buffers, etc) and has
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* ptrs to the caches.
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* @return false on ssl error.
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*/
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int load_cache(SSL* ssl, struct worker* worker);
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/**
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* Print the delegation used to lookup for this name.
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* @param ssl: to read from
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* @param worker: worker that is available (buffers, etc) and has
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* ptrs to the caches.
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* @param nm: name to lookup
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* @param nmlen: length of name.
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* @param nmlabs: labels in name.
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* @return false on ssl error.
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*/
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int print_deleg_lookup(SSL* ssl, struct worker* worker, uint8_t* nm,
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size_t nmlen, int nmlabs);
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#endif /* DAEMON_DUMPCACHE_H */
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