OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	11/10/2025 03:35:42 AM	rwxr-xr-x
📄 acl.h	6.33 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 adb.h	21.75 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 badcache.h	3.31 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 bit.h	798 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 byaddr.h	3.51 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 cache.h	8.53 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 callbacks.h	2.23 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 catz.h	11.6 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 cert.h	1.43 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 client.h	14.19 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 clientinfo.h	1.97 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 compress.h	6.88 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 db.h	49.26 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 dbiterator.h	7.21 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dbtable.h	3.09 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 diff.h	6.87 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dispatch.h	15.17 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dlz.h	10.62 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dlz_dlopen.h	4.29 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dns64.h	5.59 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dnsrps.h	2.51 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dnssec.h	12.29 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dnstap.h	9.95 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 ds.h	1.63 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dsdigest.h	1.67 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 dyndb.h	4.75 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 ecdb.h	806 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 ecs.h	1.22 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 edns.h	783 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 enumclass.h	1.19 KB	11/10/2025 03:34:13 AM	rw-r--r--
📄 enumtype.h	8.29 KB	11/10/2025 03:34:13 AM	rw-r--r--
📄 events.h	4.35 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 fixedname.h	1.61 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 forward.h	2.99 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 geoip.h	2.29 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 ipkeylist.h	2.17 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 iptable.h	1.49 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 journal.h	9.48 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 kasp.h	11.84 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 keydata.h	1.02 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 keyflags.h	1.25 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 keymgr.h	4.01 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 keytable.h	7.69 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 keyvalues.h	3.99 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 lib.h	993 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 librpz.h	30.67 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 lmdb.h	779 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 log.h	3.93 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 lookup.h	2.85 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 master.h	8.58 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 masterdump.h	9.9 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 message.h	38.64 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 name.h	36.9 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 ncache.h	4.84 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 nsec.h	2.99 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 nsec3.h	8.06 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 nta.h	4.73 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 opcode.h	1006 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 order.h	1.96 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 peer.h	6.32 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 portlist.h	2.05 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 private.h	1.92 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rbt.h	36.61 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 rcode.h	2.41 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rdata.h	22.04 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rdataclass.h	2.2 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rdatalist.h	2.5 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rdataset.h	18.28 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 rdatasetiter.h	3.82 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rdataslab.h	4.14 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 rdatastruct.h	61.23 KB	11/10/2025 03:34:13 AM	rw-r--r--
📄 rdatatype.h	2.24 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 request.h	8.97 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 resolver.h	19.68 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 result.h	8.98 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rootns.h	891 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 rpz.h	11.87 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rriterator.h	4.12 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 rrl.h	6.8 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 sdb.h	7.18 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 sdlz.h	13.76 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 secalg.h	1.67 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 secproto.h	1.52 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 soa.h	2.13 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 ssu.h	7.01 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 stats.h	24.11 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 tcpmsg.h	3.05 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 time.h	1.65 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 timer.h	1.03 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 tkey.h	7.48 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 tsec.h	2.88 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 tsig.h	8.3 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 ttl.h	1.83 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 types.h	14.19 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 update.h	1.96 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 validator.h	6.52 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 version.h	679 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 view.h	34.51 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 xfrin.h	2.26 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 zone.h	64.01 KB	11/10/2025 03:33:48 AM	rw-r--r--
📄 zonekey.h	776 bytes	11/05/2021 09:03:26 AM	rw-r--r--
📄 zoneverify.h	1.36 KB	11/05/2021 09:03:26 AM	rw-r--r--
📄 zt.h	5.12 KB	11/10/2025 03:33:48 AM	rw-r--r--

Editing: compress.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_COMPRESS_H
#define DNS_COMPRESS_H 1

#include <inttypes.h>
#include <stdbool.h>

#include <isc/lang.h>
#include <isc/region.h>

#include <dns/name.h>
#include <dns/types.h>

ISC_LANG_BEGINDECLS

/*! \file dns/compress.h
 * Direct manipulation of the structures is strongly discouraged.
 *
 * A name compression context handles compression of multiple DNS names
 * in relation to a single DNS message. The context can be used to
 * selectively turn on/off compression for specific names (depending on
 * the RR type) by using \c dns_compress_setmethods(). Alternately,
 * compression can be disabled completely using \c
 * dns_compress_disable().
 *
 * \c dns_compress_setmethods() is intended for use by RDATA towire()
 * implementations, whereas \c dns_compress_disable() is intended to be
 * used by a nameserver's configuration manager.
 */

#define DNS_COMPRESS_NONE	   0x00 /*%< no compression */
#define DNS_COMPRESS_GLOBAL14	   0x01 /*%< "normal" compression. */
#define DNS_COMPRESS_ALL	   0x01 /*%< all compression. */
#define DNS_COMPRESS_CASESENSITIVE 0x02 /*%< case sensitive compression. */
#define DNS_COMPRESS_ENABLED	   0x04

/*
 * DNS_COMPRESS_TABLESIZE must be a power of 2. The compress code
 * utilizes this assumption.
 */
#define DNS_COMPRESS_TABLEBITS	  6
#define DNS_COMPRESS_TABLESIZE	  (1U << DNS_COMPRESS_TABLEBITS)
#define DNS_COMPRESS_TABLEMASK	  (DNS_COMPRESS_TABLESIZE - 1)
#define DNS_COMPRESS_INITIALNODES 24
#define DNS_COMPRESS_ARENA_SIZE	  640

typedef struct dns_compressnode dns_compressnode_t;

struct dns_compressnode {
	dns_compressnode_t *next;
	uint16_t	    offset;
	uint16_t	    count;
	isc_region_t	    r;
	dns_name_t	    name;
};

struct dns_compress {
	unsigned int magic;   /*%< Magic number. */
	unsigned int allowed; /*%< Allowed methods. */
	int	     edns;    /*%< Edns version or -1. */
	/*% Global compression table. */
	dns_compressnode_t *table[DNS_COMPRESS_TABLESIZE];
	/*% Preallocated arena for names. */
	unsigned char arena[DNS_COMPRESS_ARENA_SIZE];
	off_t	      arena_off;
	/*% Preallocated nodes for the table. */
	dns_compressnode_t initialnodes[DNS_COMPRESS_INITIALNODES];
	uint16_t	   count; /*%< Number of nodes. */
	isc_mem_t	  *mctx;  /*%< Memory context. */
};

typedef enum {
	DNS_DECOMPRESS_ANY,    /*%< Any compression */
	DNS_DECOMPRESS_STRICT, /*%< Allowed compression */
	DNS_DECOMPRESS_NONE    /*%< No compression */
} dns_decompresstype_t;

struct dns_decompress {
	unsigned int	     magic;   /*%< Magic number. */
	unsigned int	     allowed; /*%< Allowed methods. */
	int		     edns;    /*%< Edns version or -1. */
	dns_decompresstype_t type;    /*%< Strict checking */
};

isc_result_t
dns_compress_init(dns_compress_t *cctx, int edns, isc_mem_t *mctx);
/*%<
 *	Initialise the compression context structure pointed to by
 *	'cctx'. A freshly initialized context has name compression
 *	enabled, but no methods are set. Please use \c
 *	dns_compress_setmethods() to set a compression method.
 *
 *	Requires:
 *	\li	'cctx' is a valid dns_compress_t structure.
 *	\li	'mctx' is an initialized memory context.
 *	Ensures:
 *	\li	cctx->global is initialized.
 *
 *	Returns:
 *	\li	#ISC_R_SUCCESS
 */

void
dns_compress_invalidate(dns_compress_t *cctx);

/*%<
 *	Invalidate the compression structure pointed to by cctx.
 *
 *	Requires:
 *\li		'cctx' to be initialized.
 */

void
dns_compress_setmethods(dns_compress_t *cctx, unsigned int allowed);

/*%<
 *	Sets allowed compression methods.
 *
 *	Requires:
 *\li		'cctx' to be initialized.
 */

unsigned int
dns_compress_getmethods(dns_compress_t *cctx);

/*%<
 *	Gets allowed compression methods.
 *
 *	Requires:
 *\li		'cctx' to be initialized.
 *
 *	Returns:
 *\li		allowed compression bitmap.
 */

void
dns_compress_disable(dns_compress_t *cctx);
/*%<
 *	Disables all name compression in the context. Once disabled,
 *	name compression cannot currently be re-enabled.
 *
 *	Requires:
 *\li		'cctx' to be initialized.
 *
 */

void
dns_compress_setsensitive(dns_compress_t *cctx, bool sensitive);

/*
 *	Preserve the case of compressed domain names.
 *
 *	Requires:
 *		'cctx' to be initialized.
 */

bool
dns_compress_getsensitive(dns_compress_t *cctx);
/*
 *	Return whether case is to be preserved when compressing
 *	domain names.
 *
 *	Requires:
 *		'cctx' to be initialized.
 */

int
dns_compress_getedns(dns_compress_t *cctx);

/*%<
 *	Gets edns value.
 *
 *	Requires:
 *\li		'cctx' to be initialized.
 *
 *	Returns:
 *\li		-1 .. 255
 */

bool
dns_compress_findglobal(dns_compress_t *cctx, const dns_name_t *name,
			dns_name_t *prefix, uint16_t *offset);
/*%<
 *	Finds longest possible match of 'name' in the global compression table.
 *
 *	Requires:
 *\li		'cctx' to be initialized.
 *\li		'name' to be a absolute name.
 *\li		'prefix' to be initialized.
 *\li		'offset' to point to an uint16_t.
 *
 *	Ensures:
 *\li		'prefix' and 'offset' are valid if true is 	returned.
 *
 *	Returns:
 *\li		#true / #false
 */

void
dns_compress_add(dns_compress_t *cctx, const dns_name_t *name,
		 const dns_name_t *prefix, uint16_t offset);
/*%<
 *	Add compression pointers for 'name' to the compression table,
 *	not replacing existing pointers.
 *
 *	Requires:
 *\li		'cctx' initialized
 *
 *\li		'name' must be initialized and absolute, and must remain
 *		valid until the message compression is complete.
 *
 *\li		'prefix' must be a prefix returned by
 *		dns_compress_findglobal(), or the same as 'name'.
 */

void
dns_compress_rollback(dns_compress_t *cctx, uint16_t offset);

/*%<
 *	Remove any compression pointers from global table >= offset.
 *
 *	Requires:
 *\li		'cctx' is initialized.
 */

void
dns_decompress_init(dns_decompress_t *dctx, int edns,
		    dns_decompresstype_t type);

/*%<
 *	Initializes 'dctx'.
 *	Records 'edns' and 'type' into the structure.
 *
 *	Requires:
 *\li		'dctx' to be a valid pointer.
 */

void
dns_decompress_invalidate(dns_decompress_t *dctx);

/*%<
 *	Invalidates 'dctx'.
 *
 *	Requires:
 *\li		'dctx' to be initialized
 */

void
dns_decompress_setmethods(dns_decompress_t *dctx, unsigned int allowed);

/*%<
 *	Sets 'dctx->allowed' to 'allowed'.
 *
 *	Requires:
 *\li		'dctx' to be initialized
 */

unsigned int
dns_decompress_getmethods(dns_decompress_t *dctx);

/*%<
 *	Returns 'dctx->allowed'
 *
 *	Requires:
 *\li		'dctx' to be initialized
 */

int
dns_decompress_edns(dns_decompress_t *dctx);

/*%<
 *	Returns 'dctx->edns'
 *
 *	Requires:
 *\li		'dctx' to be initialized
 */

dns_decompresstype_t
dns_decompress_type(dns_decompress_t *dctx);

/*%<
 *	Returns 'dctx->type'
 *
 *	Requires:
 *\li		'dctx' to be initialized
 */

ISC_LANG_ENDDECLS

#endif /* DNS_COMPRESS_H */