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Diffstat (limited to 'lib/dns/include/dns/masterdump.h')
| -rw-r--r-- | lib/dns/include/dns/masterdump.h | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/lib/dns/include/dns/masterdump.h b/lib/dns/include/dns/masterdump.h new file mode 100644 index 0000000..056780b --- /dev/null +++ b/lib/dns/include/dns/masterdump.h @@ -0,0 +1,359 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 + * + * 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 https://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +#pragma once + +/*! \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 + +/*% Print expired cache entries. */ +#define DNS_STYLEFLAG_EXPIRED 0x200000000ULL + +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. + */ +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. + */ +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. + */ +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. + */ +extern const dns_master_style_t dns_master_style_cache; + +/*% + * A master style format designed for cache files. The same as above but + * this also prints expired entries. + */ +extern const dns_master_style_t dns_master_style_cache_with_expired; + +/*% + * 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. + */ +extern const dns_master_style_t dns_master_style_simple; + +/*% + * The style used for debugging, "dig" output, etc. + */ +extern const dns_master_style_t dns_master_style_debug; + +/*% + * Similar to dns_master_style_debug but data is prepended with ";" + */ +extern const dns_master_style_t dns_master_style_comment; + +/*% + * Similar to dns_master_style_debug but data is indented with "\t" (tab) + */ +extern const dns_master_style_t dns_master_style_indent; + +/*% + * The style used for dumping "key" zones. + */ +extern const dns_master_style_t dns_master_style_keyzone; + +/*% + * YAML-compatible output + */ +extern const dns_master_style_t dns_master_style_yaml; + +/*** + *** 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_dumptostreamasync(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, + 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). + * + * 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_NOMEMORY + *\li Any database or rrset iterator error. + *\li Any dns_rdata_totext() error code. + */ +/*@}*/ + +/*@{*/ + +isc_result_t +dns_master_dumpasync(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, + 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). + * + * 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_NOMEMORY + *\li Any database or rrset iterator error. + *\li Any dns_rdata_totext() error code. + */ +/*@}*/ + +isc_result_t +dns_master_rdatasettotext(const dns_name_t *owner_name, + dns_rdataset_t *rdataset, + const dns_master_style_t *style, dns_indent_t *indent, + 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(const 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, + const 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, const 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, + dns_masterstyle_flags_t 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 |