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* Portions Copyright (C) Internet Systems Consortium, Inc. ("ISC")

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* This Source Code Form is subject to the terms of the Mozilla Public

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* License, v. 2.0. If a copy of the MPL was not distributed with this

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* file, you can obtain one at https://mozilla.org/MPL/2.0/.

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* See the COPYRIGHT file distributed with this work for additional

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* information regarding copyright ownership.

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* Permission to use, copy, modify, and/or 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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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NOMINUM DISCLAIMS ALL

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* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES

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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY

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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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#ifndef ISCCC_CC_H

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#define ISCCC_CC_H 1

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/*! \file isccc/cc.h */

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#include <inttypes.h>

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#include <stdbool.h>

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#include <isc/lang.h>

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#include <isc/buffer.h>

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#include <isccc/types.h>

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ISC_LANG_BEGINDECLS

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/*% from lib/dns/include/dst/dst.h */

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#define ISCCC_ALG_UNKNOWN 0

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#define ISCCC_ALG_HMACMD5 157

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#define ISCCC_ALG_HMACSHA1 161

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#define ISCCC_ALG_HMACSHA224 162

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#define ISCCC_ALG_HMACSHA256 163

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#define ISCCC_ALG_HMACSHA384 164

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#define ISCCC_ALG_HMACSHA512 165

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/*% Maximum Datagram Package */

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#define ISCCC_CC_MAXDGRAMPACKET 4096

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/*% Message Type String */

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#define ISCCC_CCMSGTYPE_STRING 0x00

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/*% Message Type Binary Data */

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#define ISCCC_CCMSGTYPE_BINARYDATA 0x01

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/*% Message Type Table */

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#define ISCCC_CCMSGTYPE_TABLE 0x02

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/*% Message Type List */

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#define ISCCC_CCMSGTYPE_LIST 0x03

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/*% Send to Wire */

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isc_result_t

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isccc_cc_towire(isccc_sexpr_t *alist, isc_buffer_t **buffer,

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uint32_t algorithm, isccc_region_t *secret);

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/*% Get From Wire */

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isc_result_t

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isccc_cc_fromwire(isccc_region_t *source, isccc_sexpr_t **alistp,

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uint32_t algorithm, isccc_region_t *secret);

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/*% Create Message */

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isc_result_t

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isccc_cc_createmessage(uint32_t version, const char *from, const char *to,

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uint32_t serial, isccc_time_t now,

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isccc_time_t expires, isccc_sexpr_t **alistp);

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/*% Create Acknowledgment */

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isc_result_t

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isccc_cc_createack(isccc_sexpr_t *message, bool ok,

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isccc_sexpr_t **ackp);

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/*% Is Ack? */

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bool

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isccc_cc_isack(isccc_sexpr_t *message);

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/*% Is Reply? */

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bool

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isccc_cc_isreply(isccc_sexpr_t *message);

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/*% Create Response */

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isc_result_t

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isccc_cc_createresponse(isccc_sexpr_t *message, isccc_time_t now,

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isccc_time_t expires, isccc_sexpr_t **alistp);

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/*% Define String */

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isccc_sexpr_t *

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isccc_cc_definestring(isccc_sexpr_t *alist, const char *key, const char *str);

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/*% Define uint 32 */

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isccc_sexpr_t *

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isccc_cc_defineuint32(isccc_sexpr_t *alist, const char *key, uint32_t i);

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/*% Lookup String */

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isc_result_t

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isccc_cc_lookupstring(isccc_sexpr_t *alist, const char *key, char **strp);

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/*% Lookup uint 32 */

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isc_result_t

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isccc_cc_lookupuint32(isccc_sexpr_t *alist, const char *key,

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uint32_t *uintp);

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/*% Create Symbol Table */

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isc_result_t

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isccc_cc_createsymtab(isccc_symtab_t **symtabp);

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/*% Clean up Symbol Table */

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void

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isccc_cc_cleansymtab(isccc_symtab_t *symtab, isccc_time_t now);

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/*% Check for Duplicates */

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isc_result_t

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isccc_cc_checkdup(isccc_symtab_t *symtab, isccc_sexpr_t *message,

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isccc_time_t now);

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ISC_LANG_ENDDECLS

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#endif /* ISCCC_CC_H */

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