2 * Copyright (C) 2004-2009, 2011-2013 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2002 Internet Software Consortium.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
21 #define DNS_MASTER_H 1
23 /*! \file dns/master.h */
33 #include <dns/types.h>
36 * Flags to be passed in the 'options' argument in the functions below.
38 #define DNS_MASTER_AGETTL 0x00000001 /*%< Age the ttl based on $DATE. */
39 #define DNS_MASTER_MANYERRORS 0x00000002 /*%< Continue processing on errors. */
40 #define DNS_MASTER_NOINCLUDE 0x00000004 /*%< Disallow $INCLUDE directives. */
41 #define DNS_MASTER_ZONE 0x00000008 /*%< Loading a zone master file. */
42 #define DNS_MASTER_HINT 0x00000010 /*%< Loading a hint master file. */
43 #define DNS_MASTER_SLAVE 0x00000020 /*%< Loading a slave master file. */
44 #define DNS_MASTER_CHECKNS 0x00000040 /*%<
45 * Check NS records to see
46 * if they are an address
48 #define DNS_MASTER_FATALNS 0x00000080 /*%<
49 * Treat DNS_MASTER_CHECKNS
52 #define DNS_MASTER_CHECKNAMES 0x00000100
53 #define DNS_MASTER_CHECKNAMESFAIL 0x00000200
54 #define DNS_MASTER_CHECKWILDCARD 0x00000400 /* Check for internal wildcards. */
55 #define DNS_MASTER_CHECKMX 0x00000800
56 #define DNS_MASTER_CHECKMXFAIL 0x00001000
58 #define DNS_MASTER_RESIGN 0x00002000
59 #define DNS_MASTER_KEY 0x00004000 /*%< Loading a key zone master file. */
60 #define DNS_MASTER_NOTTL 0x00008000 /*%< Don't require ttl. */
65 * Structures that implement the "raw" format for master dump.
66 * These are provided for a reference purpose only; in the actual
67 * encoding, we directly read/write each field so that the encoded data
68 * is always "packed", regardless of the hardware architecture.
70 #define DNS_RAWFORMAT_VERSION 1
73 * Flags to indicate the status of the data in the raw file header
75 #define DNS_MASTERRAW_COMPAT 0x01
76 #define DNS_MASTERRAW_SOURCESERIALSET 0x02
77 #define DNS_MASTERRAW_LASTXFRINSET 0x04
80 struct dns_masterrawheader {
81 isc_uint32_t format; /* must be
82 * dns_masterformat_raw */
83 isc_uint32_t version; /* compatibility for future
85 isc_uint32_t dumptime; /* timestamp on creation
86 * (currently unused) */
87 isc_uint32_t flags; /* Flags */
88 isc_uint32_t sourceserial; /* Source serial number (used
89 * by inline-signing zones) */
90 isc_uint32_t lastxfrin; /* timestamp of last transfer
91 * (used by slave zones) */
94 /* The structure for each RRset */
96 isc_uint32_t totallen; /* length of the data for this
97 * RRset, including the
99 dns_rdataclass_t rdclass; /* 16-bit class */
100 dns_rdatatype_t type; /* 16-bit type */
101 dns_rdatatype_t covers; /* same as type */
102 dns_ttl_t ttl; /* 32-bit TTL */
103 isc_uint32_t nrdata; /* number of RRs in this set */
104 /* followed by encoded owner name, and then rdata */
105 } dns_masterrawrdataset_t;
112 dns_master_loadfile(const char *master_file,
115 dns_rdataclass_t zclass,
116 unsigned int options,
117 dns_rdatacallbacks_t *callbacks,
121 dns_master_loadfile2(const char *master_file,
124 dns_rdataclass_t zclass,
125 unsigned int options,
126 dns_rdatacallbacks_t *callbacks,
128 dns_masterformat_t format);
131 dns_master_loadfile3(const char *master_file,
134 dns_rdataclass_t zclass,
135 unsigned int options,
137 dns_rdatacallbacks_t *callbacks,
139 dns_masterformat_t format);
142 dns_master_loadstream(FILE *stream,
145 dns_rdataclass_t zclass,
146 unsigned int options,
147 dns_rdatacallbacks_t *callbacks,
151 dns_master_loadbuffer(isc_buffer_t *buffer,
154 dns_rdataclass_t zclass,
155 unsigned int options,
156 dns_rdatacallbacks_t *callbacks,
160 dns_master_loadlexer(isc_lex_t *lex,
163 dns_rdataclass_t zclass,
164 unsigned int options,
165 dns_rdatacallbacks_t *callbacks,
169 dns_master_loadfileinc(const char *master_file,
172 dns_rdataclass_t zclass,
173 unsigned int options,
174 dns_rdatacallbacks_t *callbacks,
176 dns_loaddonefunc_t done, void *done_arg,
177 dns_loadctx_t **ctxp, isc_mem_t *mctx);
180 dns_master_loadfileinc2(const char *master_file,
183 dns_rdataclass_t zclass,
184 unsigned int options,
185 dns_rdatacallbacks_t *callbacks,
187 dns_loaddonefunc_t done, void *done_arg,
188 dns_loadctx_t **ctxp, isc_mem_t *mctx,
189 dns_masterformat_t format);
192 dns_master_loadfileinc3(const char *master_file,
195 dns_rdataclass_t zclass,
196 unsigned int options,
198 dns_rdatacallbacks_t *callbacks,
200 dns_loaddonefunc_t done, void *done_arg,
201 dns_loadctx_t **ctxp, isc_mem_t *mctx,
202 dns_masterformat_t format);
205 dns_master_loadstreaminc(FILE *stream,
208 dns_rdataclass_t zclass,
209 unsigned int options,
210 dns_rdatacallbacks_t *callbacks,
212 dns_loaddonefunc_t done, void *done_arg,
213 dns_loadctx_t **ctxp, isc_mem_t *mctx);
216 dns_master_loadbufferinc(isc_buffer_t *buffer,
219 dns_rdataclass_t zclass,
220 unsigned int options,
221 dns_rdatacallbacks_t *callbacks,
223 dns_loaddonefunc_t done, void *done_arg,
224 dns_loadctx_t **ctxp, isc_mem_t *mctx);
227 dns_master_loadlexerinc(isc_lex_t *lex,
230 dns_rdataclass_t zclass,
231 unsigned int options,
232 dns_rdatacallbacks_t *callbacks,
234 dns_loaddonefunc_t done, void *done_arg,
235 dns_loadctx_t **ctxp, isc_mem_t *mctx);
238 * Loads a RFC1305 master file from a file, stream, buffer, or existing
239 * lexer into rdatasets and then calls 'callbacks->commit' to commit the
240 * rdatasets. Rdata memory belongs to dns_master_load and will be
241 * reused / released when the callback completes. dns_load_master will
242 * abort if callbacks->commit returns any value other than ISC_R_SUCCESS.
244 * If 'DNS_MASTER_AGETTL' is set and the master file contains one or more
245 * $DATE directives, the TTLs of the data will be aged accordingly.
247 * 'callbacks->commit' is assumed to call 'callbacks->error' or
248 * 'callbacks->warn' to generate any error messages required.
250 * 'done' is called with 'done_arg' and a result code when the loading
251 * is completed or has failed. If the initial setup fails 'done' is
254 * 'resign' the number of seconds before a RRSIG expires that it should
255 * be re-signed. 0 is used if not provided.
258 *\li 'master_file' points to a valid string.
259 *\li 'lexer' points to a valid lexer.
260 *\li 'top' points to a valid name.
261 *\li 'origin' points to a valid name.
262 *\li 'callbacks->commit' points to a valid function.
263 *\li 'callbacks->error' points to a valid function.
264 *\li 'callbacks->warn' points to a valid function.
265 *\li 'mctx' points to a valid memory context.
266 *\li 'task' and 'done' to be valid.
267 *\li 'lmgr' to be valid.
268 *\li 'ctxp != NULL && ctxp == NULL'.
271 *\li ISC_R_SUCCESS upon successfully loading the master file.
272 *\li ISC_R_SEENINCLUDE upon successfully loading the master file with
273 * a $INCLUDE statement.
274 *\li ISC_R_NOMEMORY out of memory.
275 *\li ISC_R_UNEXPECTEDEND expected to be able to read a input token and
277 *\li ISC_R_UNEXPECTED
278 *\li DNS_R_NOOWNER failed to specify a ownername.
279 *\li DNS_R_NOTTL failed to specify a ttl.
280 *\li DNS_R_BADCLASS record class did not match zone class.
281 *\li DNS_R_CONTINUE load still in progress (dns_master_load*inc() only).
282 *\li Any dns_rdata_fromtext() error code.
283 *\li Any error code from callbacks->commit().
287 dns_loadctx_detach(dns_loadctx_t **ctxp);
289 * Detach from the load context.
292 *\li '*ctxp' to be valid.
299 dns_loadctx_attach(dns_loadctx_t *source, dns_loadctx_t **target);
301 * Attach to the load context.
304 *\li 'source' to be valid.
305 *\li 'target != NULL && *target == NULL'.
309 dns_loadctx_cancel(dns_loadctx_t *ctx);
311 * Cancel loading the zone file associated with this load context.
314 *\li 'ctx' to be valid
318 dns_master_initrawheader(dns_masterrawheader_t *header);
320 * Initializes the header for a raw master file, setting all
325 #endif /* DNS_MASTER_H */