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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef DNS_MASTER_H
#define DNS_MASTER_H 1
/*! \file dns/master.h */
/***
*** Imports
***/
#include <stdio.h>
#include <isc/lang.h>
#include <dns/types.h>
/*
* Flags to be passed in the 'options' argument in the functions below.
*/
#define DNS_MASTER_AGETTL 0x00000001 /*%< Age the ttl based on $DATE. */
#define DNS_MASTER_MANYERRORS 0x00000002 /*%< Continue processing on errors. */
#define DNS_MASTER_NOINCLUDE 0x00000004 /*%< Disallow $INCLUDE directives. */
#define DNS_MASTER_ZONE 0x00000008 /*%< Loading a zone master file. */
#define DNS_MASTER_HINT 0x00000010 /*%< Loading a hint master file. */
#define DNS_MASTER_SLAVE 0x00000020 /*%< Loading a slave master file. */
#define DNS_MASTER_CHECKNS 0x00000040 /*%<
* Check NS records to see
* if they are an address
*/
#define DNS_MASTER_FATALNS 0x00000080 /*%<
* Treat DNS_MASTER_CHECKNS
* matches as fatal
*/
#define DNS_MASTER_CHECKNAMES 0x00000100
#define DNS_MASTER_CHECKNAMESFAIL 0x00000200
#define DNS_MASTER_CHECKWILDCARD 0x00000400 /* Check for internal wildcards. */
#define DNS_MASTER_CHECKMX 0x00000800
#define DNS_MASTER_CHECKMXFAIL 0x00001000
#define DNS_MASTER_RESIGN 0x00002000
#define DNS_MASTER_KEY 0x00004000 /*%< Loading a key zone master file. */
#define DNS_MASTER_NOTTL 0x00008000 /*%< Don't require ttl. */
#define DNS_MASTER_CHECKTTL 0x00010000 /*%< Check max-zone-ttl */
ISC_LANG_BEGINDECLS
/*
* Structures that implement the "raw" format for master dump.
* These are provided for a reference purpose only; in the actual
* encoding, we directly read/write each field so that the encoded data
* is always "packed", regardless of the hardware architecture.
*/
#define DNS_RAWFORMAT_VERSION 1
/*
* Flags to indicate the status of the data in the raw file header
*/
#define DNS_MASTERRAW_COMPAT 0x01
#define DNS_MASTERRAW_SOURCESERIALSET 0x02
#define DNS_MASTERRAW_LASTXFRINSET 0x04
/* Common header */
struct dns_masterrawheader {
isc_uint32_t format; /* must be
* dns_masterformat_raw
* or
* dns_masterformat_map */
isc_uint32_t version; /* compatibility for future
* extensions */
isc_uint32_t dumptime; /* timestamp on creation
* (currently unused) */
isc_uint32_t flags; /* Flags */
isc_uint32_t sourceserial; /* Source serial number (used
* by inline-signing zones) */
isc_uint32_t lastxfrin; /* timestamp of last transfer
* (used by slave zones) */
};
/* The structure for each RRset */
typedef struct {
isc_uint32_t totallen; /* length of the data for this
* RRset, including the
* "header" part */
dns_rdataclass_t rdclass; /* 16-bit class */
dns_rdatatype_t type; /* 16-bit type */
dns_rdatatype_t covers; /* same as type */
dns_ttl_t ttl; /* 32-bit TTL */
isc_uint32_t nrdata; /* number of RRs in this set */
/* followed by encoded owner name, and then rdata */
} dns_masterrawrdataset_t;
/*
* Method prototype: a callback to register each include file as
* it is encountered.
*/
typedef void
(*dns_masterincludecb_t)(const char *file, void *arg);
/***
*** Function
***/
isc_result_t
dns_master_loadfile(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_mem_t *mctx);
isc_result_t
dns_master_loadfile2(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_mem_t *mctx,
dns_masterformat_t format);
isc_result_t
dns_master_loadfile3(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
isc_uint32_t resign,
dns_rdatacallbacks_t *callbacks,
isc_mem_t *mctx,
dns_masterformat_t format);
isc_result_t
dns_master_loadfile4(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
isc_uint32_t resign,
dns_rdatacallbacks_t *callbacks,
dns_masterincludecb_t include_cb,
void *include_arg, isc_mem_t *mctx,
dns_masterformat_t format);
isc_result_t
dns_master_loadfile5(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
isc_uint32_t resign,
dns_rdatacallbacks_t *callbacks,
dns_masterincludecb_t include_cb,
void *include_arg, isc_mem_t *mctx,
dns_masterformat_t format,
dns_ttl_t maxttl);
isc_result_t
dns_master_loadstream(FILE *stream,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_mem_t *mctx);
isc_result_t
dns_master_loadbuffer(isc_buffer_t *buffer,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_mem_t *mctx);
isc_result_t
dns_master_loadlexer(isc_lex_t *lex,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_mem_t *mctx);
isc_result_t
dns_master_loadfileinc(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp, isc_mem_t *mctx);
isc_result_t
dns_master_loadfileinc2(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp, isc_mem_t *mctx,
dns_masterformat_t format);
isc_result_t
dns_master_loadfileinc3(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
isc_uint32_t resign,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp, isc_mem_t *mctx,
dns_masterformat_t format);
isc_result_t
dns_master_loadfileinc4(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
isc_uint32_t resign,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp,
dns_masterincludecb_t include_cb, void *include_arg,
isc_mem_t *mctx, dns_masterformat_t format);
isc_result_t
dns_master_loadfileinc5(const char *master_file,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
isc_uint32_t resign,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp,
dns_masterincludecb_t include_cb, void *include_arg,
isc_mem_t *mctx, dns_masterformat_t format,
isc_uint32_t maxttl);
isc_result_t
dns_master_loadstreaminc(FILE *stream,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp, isc_mem_t *mctx);
isc_result_t
dns_master_loadbufferinc(isc_buffer_t *buffer,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp, isc_mem_t *mctx);
isc_result_t
dns_master_loadlexerinc(isc_lex_t *lex,
dns_name_t *top,
dns_name_t *origin,
dns_rdataclass_t zclass,
unsigned int options,
dns_rdatacallbacks_t *callbacks,
isc_task_t *task,
dns_loaddonefunc_t done, void *done_arg,
dns_loadctx_t **ctxp, isc_mem_t *mctx);
/*%<
* Loads a RFC1305 master file from a file, stream, buffer, or existing
* lexer into rdatasets and then calls 'callbacks->commit' to commit the
* rdatasets. Rdata memory belongs to dns_master_load and will be
* reused / released when the callback completes. dns_load_master will
* abort if callbacks->commit returns any value other than ISC_R_SUCCESS.
*
* If 'DNS_MASTER_AGETTL' is set and the master file contains one or more
* $DATE directives, the TTLs of the data will be aged accordingly.
*
* 'callbacks->commit' is assumed to call 'callbacks->error' or
* 'callbacks->warn' to generate any error messages required.
*
* 'done' is called with 'done_arg' and a result code when the loading
* is completed or has failed. If the initial setup fails 'done' is
* not called.
*
* 'resign' the number of seconds before a RRSIG expires that it should
* be re-signed. 0 is used if not provided.
*
* Requires:
*\li 'master_file' points to a valid string.
*\li 'lexer' points to a valid lexer.
*\li 'top' points to a valid name.
*\li 'origin' points to a valid name.
*\li 'callbacks->commit' points to a valid function.
*\li 'callbacks->error' points to a valid function.
*\li 'callbacks->warn' points to a valid function.
*\li 'mctx' points to a valid memory context.
*\li 'task' and 'done' to be valid.
*\li 'lmgr' to be valid.
*\li 'ctxp != NULL && ctxp == NULL'.
*
* Returns:
*\li ISC_R_SUCCESS upon successfully loading the master file.
*\li ISC_R_SEENINCLUDE upon successfully loading the master file with
* a $INCLUDE statement.
*\li ISC_R_NOMEMORY out of memory.
*\li ISC_R_UNEXPECTEDEND expected to be able to read a input token and
* there was not one.
*\li ISC_R_UNEXPECTED
*\li DNS_R_NOOWNER failed to specify a ownername.
*\li DNS_R_NOTTL failed to specify a ttl.
*\li DNS_R_BADCLASS record class did not match zone class.
*\li DNS_R_CONTINUE load still in progress (dns_master_load*inc() only).
*\li Any dns_rdata_fromtext() error code.
*\li Any error code from callbacks->commit().
*/
void
dns_loadctx_detach(dns_loadctx_t **ctxp);
/*%<
* Detach from the load context.
*
* Requires:
*\li '*ctxp' to be valid.
*
* Ensures:
*\li '*ctxp == NULL'
*/
void
dns_loadctx_attach(dns_loadctx_t *source, dns_loadctx_t **target);
/*%<
* Attach to the load context.
*
* Requires:
*\li 'source' to be valid.
*\li 'target != NULL && *target == NULL'.
*/
void
dns_loadctx_cancel(dns_loadctx_t *ctx);
/*%<
* Cancel loading the zone file associated with this load context.
*
* Requires:
*\li 'ctx' to be valid
*/
void
dns_master_initrawheader(dns_masterrawheader_t *header);
/*%<
* Initializes the header for a raw master file, setting all
* values to zero.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_MASTER_H */