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Name	Size	Permission
acl.h	6.33 KB	-rw-r--r--
adb.h	21.75 KB	-rw-r--r--
badcache.h	3.31 KB	-rw-r--r--
bit.h	798 B	-rw-r--r--
byaddr.h	3.51 KB	-rw-r--r--
cache.h	8.53 KB	-rw-r--r--
callbacks.h	2.23 KB	-rw-r--r--
catz.h	11.6 KB	-rw-r--r--
cert.h	1.43 KB	-rw-r--r--
client.h	14.19 KB	-rw-r--r--
clientinfo.h	1.97 KB	-rw-r--r--
compress.h	6.88 KB	-rw-r--r--
db.h	49.26 KB	-rw-r--r--
dbiterator.h	7.21 KB	-rw-r--r--
dbtable.h	3.09 KB	-rw-r--r--
diff.h	6.87 KB	-rw-r--r--
dispatch.h	15.17 KB	-rw-r--r--
dlz.h	10.62 KB	-rw-r--r--
dlz_dlopen.h	4.29 KB	-rw-r--r--
dns64.h	5.59 KB	-rw-r--r--
dnsrps.h	2.51 KB	-rw-r--r--
dnssec.h	12.29 KB	-rw-r--r--
dnstap.h	9.95 KB	-rw-r--r--
ds.h	1.63 KB	-rw-r--r--
dsdigest.h	1.67 KB	-rw-r--r--
dyndb.h	4.75 KB	-rw-r--r--
ecdb.h	806 B	-rw-r--r--
ecs.h	1.22 KB	-rw-r--r--
edns.h	783 B	-rw-r--r--
enumclass.h	1.19 KB	-rw-r--r--
enumtype.h	8.29 KB	-rw-r--r--
events.h	4.35 KB	-rw-r--r--
fixedname.h	1.61 KB	-rw-r--r--
forward.h	2.99 KB	-rw-r--r--
geoip.h	2.29 KB	-rw-r--r--
ipkeylist.h	2.17 KB	-rw-r--r--
iptable.h	1.49 KB	-rw-r--r--
journal.h	9.48 KB	-rw-r--r--
kasp.h	11.84 KB	-rw-r--r--
keydata.h	1.02 KB	-rw-r--r--
keyflags.h	1.25 KB	-rw-r--r--
keymgr.h	4.01 KB	-rw-r--r--
keytable.h	7.69 KB	-rw-r--r--
keyvalues.h	3.99 KB	-rw-r--r--
lib.h	993 B	-rw-r--r--
librpz.h	30.67 KB	-rw-r--r--
lmdb.h	779 B	-rw-r--r--
log.h	3.93 KB	-rw-r--r--
lookup.h	2.85 KB	-rw-r--r--
master.h	8.58 KB	-rw-r--r--
masterdump.h	9.9 KB	-rw-r--r--
message.h	38.64 KB	-rw-r--r--
name.h	36.9 KB	-rw-r--r--
ncache.h	4.84 KB	-rw-r--r--
nsec.h	2.99 KB	-rw-r--r--
nsec3.h	8.06 KB	-rw-r--r--
nta.h	4.73 KB	-rw-r--r--
opcode.h	1006 B	-rw-r--r--
order.h	1.96 KB	-rw-r--r--
peer.h	6.32 KB	-rw-r--r--
portlist.h	2.05 KB	-rw-r--r--
private.h	1.92 KB	-rw-r--r--
rbt.h	36.61 KB	-rw-r--r--
rcode.h	2.41 KB	-rw-r--r--
rdata.h	22.04 KB	-rw-r--r--
rdataclass.h	2.2 KB	-rw-r--r--
rdatalist.h	2.5 KB	-rw-r--r--
rdataset.h	18.28 KB	-rw-r--r--
rdatasetiter.h	3.82 KB	-rw-r--r--
rdataslab.h	4.14 KB	-rw-r--r--
rdatastruct.h	61.23 KB	-rw-r--r--
rdatatype.h	2.24 KB	-rw-r--r--
request.h	8.97 KB	-rw-r--r--
resolver.h	19.68 KB	-rw-r--r--
result.h	8.98 KB	-rw-r--r--
rootns.h	891 B	-rw-r--r--
rpz.h	11.87 KB	-rw-r--r--
rriterator.h	4.12 KB	-rw-r--r--
rrl.h	6.8 KB	-rw-r--r--
sdb.h	7.18 KB	-rw-r--r--
sdlz.h	13.76 KB	-rw-r--r--
secalg.h	1.67 KB	-rw-r--r--
secproto.h	1.52 KB	-rw-r--r--
soa.h	2.13 KB	-rw-r--r--
ssu.h	7.01 KB	-rw-r--r--
stats.h	24.11 KB	-rw-r--r--
tcpmsg.h	3.05 KB	-rw-r--r--
time.h	1.65 KB	-rw-r--r--
timer.h	1.03 KB	-rw-r--r--
tkey.h	7.48 KB	-rw-r--r--
tsec.h	2.88 KB	-rw-r--r--
tsig.h	8.3 KB	-rw-r--r--
ttl.h	1.83 KB	-rw-r--r--
types.h	14.19 KB	-rw-r--r--
update.h	1.96 KB	-rw-r--r--
validator.h	6.52 KB	-rw-r--r--
version.h	679 B	-rw-r--r--
view.h	34.51 KB	-rw-r--r--
xfrin.h	2.26 KB	-rw-r--r--
zone.h	64.01 KB	-rw-r--r--
zonekey.h	776 B	-rw-r--r--
zoneverify.h	1.36 KB	-rw-r--r--
zt.h	5.12 KB	-rw-r--r--

Code Editor : rdataslab.h

/*
 * 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 https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#ifndef DNS_RDATASLAB_H
#define DNS_RDATASLAB_H 1

/*! \file dns/rdataslab.h
 * \brief
 * Implements storage of rdatasets into slabs of memory.
 *
 * MP:
 *\li	Clients of this module must impose any required synchronization.
 *
 * Reliability:
 *\li	This module deals with low-level byte streams.  Errors in any of
 *	the functions are likely to crash the server or corrupt memory.
 *
 *\li	If the caller passes invalid memory references, these functions are
 *	likely to crash the server or corrupt memory.
 *
 * Resources:
 *\li	None.
 *
 * Security:
 *\li	None.
 *
 * Standards:
 *\li	None.
 */

/***
 *** Imports
 ***/

#include <stdbool.h>

#include <isc/lang.h>

#include <dns/types.h>

ISC_LANG_BEGINDECLS

#define DNS_RDATASLAB_FORCE 0x1
#define DNS_RDATASLAB_EXACT 0x2

#define DNS_RDATASLAB_OFFLINE 0x01 /* RRSIG is for offline DNSKEY */
#define DNS_RDATASLAB_WARNMASK          \
	0x0E /*%< RRSIG(DNSKEY) expired \
	      * warnings number mask. */
#define DNS_RDATASLAB_WARNSHIFT               \
	1 /*%< How many bits to shift to find \
	   * remaining expired warning number. */

/***
 *** Functions
 ***/

isc_result_t
dns_rdataslab_fromrdataset(dns_rdataset_t *rdataset, isc_mem_t *mctx,
			   isc_region_t *region, unsigned int reservelen,
			   uint32_t limit);
/*%<
 * Slabify a rdataset.  The slab area will be allocated and returned
 * in 'region'.
 *
 * Requires:
 *\li	'rdataset' is valid.
 *
 * Ensures:
 *\li	'region' will have base pointing to the start of allocated memory,
 *	with the slabified region beginning at region->base + reservelen.
 *	region->length contains the total length allocated.
 *
 * Returns:
 *\li	ISC_R_SUCCESS		- successful completion
 *\li	ISC_R_NOMEMORY		- no memory.
 *\li	XXX others
 */

unsigned int
dns_rdataslab_size(unsigned char *slab, unsigned int reservelen);
/*%<
 * Return the total size of an rdataslab.
 *
 * Requires:
 *\li	'slab' points to a slab.
 *
 * Returns:
 *\li	The number of bytes in the slab, including the reservelen.
 */

unsigned int
dns_rdataslab_rdatasize(unsigned char *slab, unsigned int reservelen);
/*%<
 * Return the size of the rdata in an rdataslab.
 *
 * Requires:
 *\li	'slab' points to a slab.
 */

unsigned int
dns_rdataslab_count(unsigned char *slab, unsigned int reservelen);
/*%<
 * Return the number of records in the rdataslab
 *
 * Requires:
 *\li	'slab' points to a slab.
 *
 * Returns:
 *\li	The number of records in the slab.
 */

isc_result_t
dns_rdataslab_merge(unsigned char *oslab, unsigned char *nslab,
		    unsigned int reservelen, isc_mem_t *mctx,
		    dns_rdataclass_t rdclass, dns_rdatatype_t type,
		    unsigned int flags, uint32_t maxrrperset,
		    unsigned char **tslabp);
/*%<
 * Merge 'oslab' and 'nslab'.
 */

isc_result_t
dns_rdataslab_subtract(unsigned char *mslab, unsigned char *sslab,
		       unsigned int reservelen, isc_mem_t *mctx,
		       dns_rdataclass_t rdclass, dns_rdatatype_t type,
		       unsigned int flags, unsigned char **tslabp);
/*%<
 * Subtract 'sslab' from 'mslab'.  If 'exact' is true then all elements
 * of 'sslab' must exist in 'mslab'.
 *
 * XXX
 * valid flags are DNS_RDATASLAB_EXACT
 */

bool
dns_rdataslab_equal(unsigned char *slab1, unsigned char *slab2,
		    unsigned int reservelen);
/*%<
 * Compare two rdataslabs for equality.  This does _not_ do a full
 * DNSSEC comparison.
 *
 * Requires:
 *\li	'slab1' and 'slab2' point to slabs.
 *
 * Returns:
 *\li	true if the slabs are equal, false otherwise.
 */
bool
dns_rdataslab_equalx(unsigned char *slab1, unsigned char *slab2,
		     unsigned int reservelen, dns_rdataclass_t rdclass,
		     dns_rdatatype_t type);
/*%<
 * Compare two rdataslabs for DNSSEC equality.
 *
 * Requires:
 *\li	'slab1' and 'slab2' point to slabs.
 *
 * Returns:
 *\li	true if the slabs are equal, #false otherwise.
 */

ISC_LANG_ENDDECLS

#endif /* DNS_RDATASLAB_H */

${this.title}

Code Editor : rdataslab.h