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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_MASTERDUMP_H #define DNS_MASTERDUMP_H 1 /*! \file dns/masterdump.h */ /*** *** Imports ***/ #include <stdio.h> #include <isc/lang.h> #include <dns/types.h> /*** *** Types ***/ typedef struct dns_master_style dns_master_style_t; /*** *** Definitions ***/ /* * Flags affecting master file formatting. Flags 0x0000FFFF * define the formatting of the rdata part and are defined in * rdata.h. */ /*% Omit the owner name when possible. */ #define DNS_STYLEFLAG_OMIT_OWNER 0x000010000ULL /*% * Omit the TTL when possible. If DNS_STYLEFLAG_TTL is * also set, this means no TTLs are ever printed * because $TTL directives are generated before every * change in the TTL. In this case, no columns need to * be reserved for the TTL. Master files generated with * these options will be rejected by BIND 4.x because it * does not recognize the $TTL directive. * * If DNS_STYLEFLAG_TTL is not also set, the TTL will be * omitted when it is equal to the previous TTL. * This is correct according to RFC1035, but the * TTLs may be silently misinterpreted by older * versions of BIND which use the SOA MINTTL as a * default TTL value. */ #define DNS_STYLEFLAG_OMIT_TTL 0x000020000ULL /*% Omit the class when possible. */ #define DNS_STYLEFLAG_OMIT_CLASS 0x000040000ULL /*% Output $TTL directives. */ #define DNS_STYLEFLAG_TTL 0x000080000ULL /*% * Output $ORIGIN directives and print owner names relative to * the origin when possible. */ #define DNS_STYLEFLAG_REL_OWNER 0x000100000ULL /*% Print domain names in RR data in relative form when possible. For this to take effect, DNS_STYLEFLAG_REL_OWNER must also be set. */ #define DNS_STYLEFLAG_REL_DATA 0x000200000ULL /*% Print the trust level of each rdataset. */ #define DNS_STYLEFLAG_TRUST 0x000400000ULL /*% Print negative caching entries. */ #define DNS_STYLEFLAG_NCACHE 0x000800000ULL /*% Never print the TTL. */ #define DNS_STYLEFLAG_NO_TTL 0x001000000ULL /*% Never print the CLASS. */ #define DNS_STYLEFLAG_NO_CLASS 0x002000000ULL /*% Report re-signing time. */ #define DNS_STYLEFLAG_RESIGN 0x004000000ULL /*% Don't printout the cryptographic parts of DNSSEC records. */ #define DNS_STYLEFLAG_NOCRYPTO 0x008000000ULL /*% Comment out data by prepending with ";" */ #define DNS_STYLEFLAG_COMMENTDATA 0x010000000ULL /*% Print TTL with human-readable units. */ #define DNS_STYLEFLAG_TTL_UNITS 0x020000000ULL /*% Indent output. */ #define DNS_STYLEFLAG_INDENT 0x040000000ULL /*% Output in YAML style. */ #define DNS_STYLEFLAG_YAML 0x080000000ULL /*% Print ECS cache entries as comments (reserved for future use). */ #define DNS_STYLEFLAG_ECSCACHE 0x100000000ULL ISC_LANG_BEGINDECLS /*** *** Constants ***/ /*% * The default master file style. * * This uses $TTL directives to avoid the need to dedicate a * tab stop for the TTL. The class is only printed for the first * rrset in the file and shares a tab stop with the RR type. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_default; /*% * A master file style that dumps zones to a very generic format easily * imported/checked with external tools. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_full; /*% * A master file style that prints explicit TTL values on each * record line, never using $TTL statements. The TTL has a tab * stop of its own, but the class and type share one. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_explicitttl; /*% * A master style format designed for cache files. It prints explicit TTL * values on each record line and never uses $ORIGIN or relative names. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_cache; /*% * A master style that prints name, ttl, class, type, and value on * every line. Similar to explicitttl above, but more verbose. * Intended for generating master files which can be easily parsed * by perl scripts and similar applications. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_simple; /*% * The style used for debugging, "dig" output, etc. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_debug; /*% * Similar to dns_master_style_debug but data is prepended with ";" */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_comment; /*% * Similar to dns_master_style_debug but data is indented with * dns_master_indentstr (defaults to tab). */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_indent; /*% * The style used for dumping "key" zones. */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_keyzone; /*% * YAML-compatible output */ LIBDNS_EXTERNAL_DATA extern const dns_master_style_t dns_master_style_yaml; /*% * The default indent string to prepend lines with when using * styleflag DNS_STYLEFLAG_INDENT or DNS_STYLEFLAG_YAML. * This is set to "\t" by default. The indent is repeated * 'dns_master_indent' times. This precedes everything else * on the line, including comment characters (;). * * XXX: Changing this value at runtime is not thread-safe. */ LIBDNS_EXTERNAL_DATA extern const char *dns_master_indentstr; /*% * The number of copies of the indent string to put at the beginning * of the line when using DNS_STYLEFLAG_INDENT or DNS_STYLEFLAG_YAML. * This is set to 1 by default. It is increased and decreased * to adjust indentation levels when producing YAML output. * * XXX: This is not thread-safe. */ LIBDNS_EXTERNAL_DATA extern unsigned int dns_master_indent; /*** *** Functions ***/ void dns_dumpctx_attach(dns_dumpctx_t *source, dns_dumpctx_t **target); /*%< * Attach to a dump context. * * Require: *\li 'source' to be valid. *\li 'target' to be non NULL and '*target' to be NULL. */ void dns_dumpctx_detach(dns_dumpctx_t **dctxp); /*%< * Detach from a dump context. * * Require: *\li 'dctxp' to point to a valid dump context. * * Ensures: *\li '*dctxp' is NULL. */ void dns_dumpctx_cancel(dns_dumpctx_t *dctx); /*%< * Cancel a in progress dump. * * Require: *\li 'dctx' to be valid. */ dns_dbversion_t * dns_dumpctx_version(dns_dumpctx_t *dctx); /*%< * Return the version handle (if any) of the database being dumped. * * Require: *\li 'dctx' to be valid. */ dns_db_t * dns_dumpctx_db(dns_dumpctx_t *dctx); /*%< * Return the database being dumped. * * Require: *\li 'dctx' to be valid. */ /*@{*/ isc_result_t dns_master_dumptostreaminc(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, FILE *f, isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg, dns_dumpctx_t **dctxp); isc_result_t dns_master_dumptostream(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, FILE *f); isc_result_t dns_master_dumptostream2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, dns_masterformat_t format, FILE *f); isc_result_t dns_master_dumptostream3(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, dns_masterformat_t format, dns_masterrawheader_t *header, FILE *f); /*%< * Dump the database 'db' to the steam 'f' in the specified format by * 'format'. If the format is dns_masterformat_text (the RFC1035 format), * 'style' specifies the file style (e.g., &dns_master_style_default). * * dns_master_dumptostream() is an old form of dns_master_dumptostream3(), * which always specifies the dns_masterformat_text format. * dns_master_dumptostream2() is an old form which always specifies * a NULL header. * * If 'format' is dns_masterformat_raw, then 'header' can contain * information to be written to the file header. * * Temporary dynamic memory may be allocated from 'mctx'. * * Require: *\li 'task' to be valid. *\li 'done' to be non NULL. *\li 'dctxp' to be non NULL && '*dctxp' to be NULL. * * Returns: *\li ISC_R_SUCCESS *\li ISC_R_CONTINUE dns_master_dumptostreaminc() only. *\li ISC_R_NOMEMORY *\li Any database or rrset iterator error. *\li Any dns_rdata_totext() error code. */ /*@}*/ /*@{*/ isc_result_t dns_master_dumpinc(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, const char *filename, isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg, dns_dumpctx_t **dctxp); isc_result_t dns_master_dumpinc2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, const char *filename, isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg, dns_dumpctx_t **dctxp, dns_masterformat_t format); isc_result_t dns_master_dumpinc3(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, const char *filename, isc_task_t *task, dns_dumpdonefunc_t done, void *done_arg, dns_dumpctx_t **dctxp, dns_masterformat_t format, dns_masterrawheader_t *header); isc_result_t dns_master_dump(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, const char *filename); isc_result_t dns_master_dump2(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, const char *filename, dns_masterformat_t format); isc_result_t dns_master_dump3(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, const dns_master_style_t *style, const char *filename, dns_masterformat_t format, dns_masterrawheader_t *header); /*%< * Dump the database 'db' to the file 'filename' in the specified format by * 'format'. If the format is dns_masterformat_text (the RFC1035 format), * 'style' specifies the file style (e.g., &dns_master_style_default). * * dns_master_dumpinc() and dns_master_dump() are old forms of _dumpinc3() * and _dump3(), respectively, which always specify the dns_masterformat_text * format. dns_master_dumpinc2() and dns_master_dump2() are old forms which * always specify a NULL header. * * If 'format' is dns_masterformat_raw, then 'header' can contain * information to be written to the file header. * * Temporary dynamic memory may be allocated from 'mctx'. * * Returns: *\li ISC_R_SUCCESS *\li ISC_R_CONTINUE dns_master_dumpinc() only. *\li ISC_R_NOMEMORY *\li Any database or rrset iterator error. *\li Any dns_rdata_totext() error code. */ /*@}*/ isc_result_t dns_master_rdatasettotext(dns_name_t *owner_name, dns_rdataset_t *rdataset, const dns_master_style_t *style, isc_buffer_t *target); /*%< * Convert 'rdataset' to text format, storing the result in 'target'. * * Notes: *\li The rdata cursor position will be changed. * * Requires: *\li 'rdataset' is a valid non-question rdataset. * *\li 'rdataset' is not empty. */ isc_result_t dns_master_questiontotext(dns_name_t *owner_name, dns_rdataset_t *rdataset, const dns_master_style_t *style, isc_buffer_t *target); isc_result_t dns_master_dumpnodetostream(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node, dns_name_t *name, const dns_master_style_t *style, FILE *f); isc_result_t dns_master_dumpnode(isc_mem_t *mctx, dns_db_t *db, dns_dbversion_t *version, dns_dbnode_t *node, dns_name_t *name, const dns_master_style_t *style, const char *filename); dns_masterstyle_flags_t dns_master_styleflags(const dns_master_style_t *style); isc_result_t dns_master_stylecreate(dns_master_style_t **style, unsigned int flags, unsigned int ttl_column, unsigned int class_column, unsigned int type_column, unsigned int rdata_column, unsigned int line_length, unsigned int tab_width, isc_mem_t *mctx); isc_result_t dns_master_stylecreate2(dns_master_style_t **style, unsigned int flags, unsigned int ttl_column, unsigned int class_column, unsigned int type_column, unsigned int rdata_column, unsigned int line_length, unsigned int tab_width, unsigned int split_width, isc_mem_t *mctx); void dns_master_styledestroy(dns_master_style_t **style, isc_mem_t *mctx); ISC_LANG_ENDDECLS #endif /* DNS_MASTERDUMP_H */