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90 lines
3.5 KiB
C
90 lines
3.5 KiB
C
/*
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* pythonmod_utils.h: utils header file
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*
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* Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
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* Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
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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 organization nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without 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 LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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* Utility functions for the python module that perform stores and loads and
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* conversions.
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*/
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#ifndef PYTHONMOD_UTILS_H
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#define PYTHONMOD_UTILS_H
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#include "util/module.h"
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/**
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* Store the reply_info and query_info pair in message cache (qstate->msg_cache)
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*
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* @param qstate: module environment
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* @param qinfo: query info, the query for which answer is stored.
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* @param msgrep: reply in dns_msg
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* @param is_referral: If true, then the given message to be stored is a
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* referral. The cache implementation may use this as a hint.
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* It will store only the RRsets, not the message.
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* @return 0 on alloc error (out of memory).
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*/
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int storeQueryInCache(struct module_qstate* qstate, struct query_info* qinfo, struct reply_info* msgrep, int is_referral);
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/**
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* Invalidate the message associated with query_info stored in message cache.
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*
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* This function invalidates the record in message cache associated with the given query only if such a record exists.
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*
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* @param qstate: module environment
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* @param qinfo: query info, the query for which answer is stored.
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*/
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void invalidateQueryInCache(struct module_qstate* qstate, struct query_info* qinfo);
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/**
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* Create response according to the ldns packet content
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*
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* This function fills qstate.return_msg up with data of a given packet
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*
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* @param qstate: module environment
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* @param pkt: a sldns_buffer which contains sldns_packet data
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* @return 0 on failure, out of memory or parse error.
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*/
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int createResponse(struct module_qstate* qstate, sldns_buffer* pkt);
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/**
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* Convert reply->addr to string
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* @param reply: comm reply with address in it.
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* @param dest: destination string.
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* @param maxlen: length of string buffer.
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*/
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void reply_addr2str(struct comm_reply* reply, char* dest, int maxlen);
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#endif /* PYTHONMOD_UTILS_H */
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