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https://github.com/isc-projects/bind9.git
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179 lines
5.4 KiB
C
179 lines
5.4 KiB
C
/*
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* Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
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* Copyright (C) 1999-2002 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $Id: dnssec.h,v 1.21.12.5 2004/03/08 09:04:35 marka Exp $ */
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#ifndef DNS_DNSSEC_H
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#define DNS_DNSSEC_H 1
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#include <isc/lang.h>
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#include <isc/stdtime.h>
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#include <dns/types.h>
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#include <dst/dst.h>
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ISC_LANG_BEGINDECLS
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isc_result_t
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dns_dnssec_keyfromrdata(dns_name_t *name, dns_rdata_t *rdata, isc_mem_t *mctx,
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dst_key_t **key);
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/*
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* Creates a DST key from a DNS record. Basically a wrapper around
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* dst_key_fromdns().
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*
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* Requires:
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* 'name' is not NULL
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* 'rdata' is not NULL
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* 'mctx' is not NULL
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* 'key' is not NULL
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* '*key' is NULL
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOMEMORY
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* DST_R_INVALIDPUBLICKEY
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* various errors from dns_name_totext
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*/
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isc_result_t
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dns_dnssec_sign(dns_name_t *name, dns_rdataset_t *set, dst_key_t *key,
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isc_stdtime_t *inception, isc_stdtime_t *expire,
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isc_mem_t *mctx, isc_buffer_t *buffer, dns_rdata_t *sigrdata);
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/*
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* Generates a SIG record covering this rdataset. This has no effect
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* on existing SIG records.
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*
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* Requires:
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* 'name' (the owner name of the record) is a valid name
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* 'set' is a valid rdataset
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* 'key' is a valid key
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* 'inception' is not NULL
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* 'expire' is not NULL
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* 'mctx' is not NULL
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* 'buffer' is not NULL
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* 'sigrdata' is not NULL
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOMEMORY
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* ISC_R_NOSPACE
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* DNS_R_INVALIDTIME - the expiration is before the inception
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* DNS_R_KEYUNAUTHORIZED - the key cannot sign this data (either
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* it is not a zone key or its flags prevent
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* authentication)
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* DST_R_*
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*/
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isc_result_t
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dns_dnssec_verify(dns_name_t *name, dns_rdataset_t *set, dst_key_t *key,
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isc_boolean_t ignoretime, isc_mem_t *mctx,
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dns_rdata_t *sigrdata);
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isc_result_t
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dns_dnssec_verify2(dns_name_t *name, dns_rdataset_t *set, dst_key_t *key,
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isc_boolean_t ignoretime, isc_mem_t *mctx,
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dns_rdata_t *sigrdata, dns_name_t *wild);
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/*
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* Verifies the SIG record covering this rdataset signed by a specific
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* key. This does not determine if the key's owner is authorized to
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* sign this record, as this requires a resolver or database.
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* If 'ignoretime' is ISC_TRUE, temporal validity will not be checked.
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*
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* Requires:
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* 'name' (the owner name of the record) is a valid name
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* 'set' is a valid rdataset
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* 'key' is a valid key
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* 'mctx' is not NULL
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* 'sigrdata' is a valid rdata containing a SIG record
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* 'wild' if non-NULL then is a valid and has a buffer.
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOMEMORY
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* DNS_R_FROMWILDCARD - the signature is valid and is from
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* a wildcard expansion. dns_dnssec_verify2() only.
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* 'wild' contains the name of the wildcard if non-NULL.
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* DNS_R_SIGINVALID - the signature fails to verify
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* DNS_R_SIGEXPIRED - the signature has expired
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* DNS_R_SIGFUTURE - the signature's validity period has not begun
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* DNS_R_KEYUNAUTHORIZED - the key cannot sign this data (either
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* it is not a zone key or its flags prevent
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* authentication)
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* DST_R_*
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*/
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isc_result_t
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dns_dnssec_findzonekeys(dns_db_t *db, dns_dbversion_t *ver, dns_dbnode_t *node,
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dns_name_t *name, isc_mem_t *mctx,
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unsigned int maxkeys, dst_key_t **keys,
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unsigned int *nkeys);
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isc_result_t
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dns_dnssec_findzonekeys2(dns_db_t *db, dns_dbversion_t *ver,
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dns_dbnode_t *node, dns_name_t *name,
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const char *directory, isc_mem_t *mctx,
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unsigned int maxkeys, dst_key_t **keys,
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unsigned int *nkeys);
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/*
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* Finds a set of zone keys.
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* XXX temporary - this should be handled in dns_zone_t.
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*/
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isc_result_t
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dns_dnssec_signmessage(dns_message_t *msg, dst_key_t *key);
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/*
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* Signs a message with a SIG(0) record. This is implicitly called by
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* dns_message_renderend() if msg->sig0key is not NULL.
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*
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* Requires:
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* 'msg' is a valid message
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* 'key' is a valid key that can be used for signing
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOMEMORY
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* DST_R_*
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*/
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isc_result_t
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dns_dnssec_verifymessage(isc_buffer_t *source, dns_message_t *msg,
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dst_key_t *key);
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/*
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* Verifies a message signed by a SIG(0) record. This is not
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* called implicitly by dns_message_parse(). If dns_message_signer()
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* is called before dns_dnssec_verifymessage(), it will return
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* DNS_R_NOTVERIFIEDYET. dns_dnssec_verifymessage() will set
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* the verified_sig0 flag in msg if the verify succeeds, and
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* the sig0status field otherwise.
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*
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* Requires:
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* 'source' is a valid buffer containing the unparsed message
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* 'msg' is a valid message
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* 'key' is a valid key
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*
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* Returns:
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* ISC_R_SUCCESS
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* ISC_R_NOMEMORY
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* ISC_R_NOTFOUND - no SIG(0) was found
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* DNS_R_SIGINVALID - the SIG record is not well-formed or
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* was not generated by the key.
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* DST_R_*
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*/
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ISC_LANG_ENDDECLS
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#endif /* DNS_DNSSEC_H */
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