a85b5759f3
These files were pulled from the 1.6.3 release tarball. This new version builds against OpenSSL version 1.1 which will be the default in the new Debian Stable which is due to be released RealSoonNow (tm).
113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/*
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* iterator/iter_priv.h - iterative resolver private address and domain store
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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 assist the iterator module.
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* Keep track of the private addresses and lookup fast.
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*/
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#ifndef ITERATOR_ITER_PRIV_H
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#define ITERATOR_ITER_PRIV_H
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#include "util/rbtree.h"
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struct sldns_buffer;
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struct iter_env;
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struct config_file;
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struct regional;
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struct rrset_parse;
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/**
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* Iterator priv structure
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*/
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struct iter_priv {
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/** regional for allocation */
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struct regional* region;
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/**
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* Tree of the address spans that are blocked.
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* contents of type addr_tree_node.
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* No further data need, only presence or absence.
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*/
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rbtree_type a;
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/**
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* Tree of the domains spans that are allowed to contain
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* the blocked address spans.
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* contents of type name_tree_node.
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* No further data need, only presence or absence.
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*/
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rbtree_type n;
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};
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/**
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* Create priv structure
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* @return new structure or NULL on error.
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*/
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struct iter_priv* priv_create(void);
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/**
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* Delete priv structure.
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* @param priv: to delete.
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*/
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void priv_delete(struct iter_priv* priv);
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/**
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* Process priv config.
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* @param priv: where to store.
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* @param cfg: config options.
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* @return 0 on error.
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*/
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int priv_apply_cfg(struct iter_priv* priv, struct config_file* cfg);
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/**
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* See if rrset is bad.
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* Will remove individual RRs that are bad (if possible) to
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* sanitize the RRset without removing it completely.
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* @param priv: structure for private address storage.
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* @param pkt: packet to decompress rrset name in.
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* @param rrset: the rrset to examine, A or AAAA.
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* @return true if the rrset is bad and should be removed.
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*/
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int priv_rrset_bad(struct iter_priv* priv, struct sldns_buffer* pkt,
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struct rrset_parse* rrset);
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/**
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* Get memory used by priv structure.
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* @param priv: structure for address storage.
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* @return bytes in use.
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*/
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size_t priv_get_mem(struct iter_priv* priv);
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#endif /* ITERATOR_ITER_PRIV_H */
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