mirror of
https://gitlab.isc.org/isc-projects/bind9
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Files supportting the zoneinfo structure.
This commit is contained in:
James Brister
391
bin/named/zone.c
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391
bin/named/zone.c
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@@ -0,0 +1,391 @@
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/*
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* Copyright (C) 1998, 1999 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <dns/types.h>
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#include <isc/mem.h>
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#include <isc/assertions.h>
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#include "zone.h"
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/*
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NOTES
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- This needs to be fixed for threads.
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-
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- we do not 'realloc' to keep all the zones in contiguous memory.
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*/
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#define ZONECHUNK 50 /* how many zone structs we make at once.*/
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#define ZONE_USED_MAGIC 0x7fffffff
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#define ZONE_FREE_MAGIC 0x0
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/* This structure contains all the run-time information about a zone. */
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struct zoneinfo
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{
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char *origin; /* name of zone */
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time_t filemodtime; /* mod time of zone file */
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char *source; /* where zone data came from */
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#if 0
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dns_db_t what_am_i; /* XXX unknown thing... */
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#endif
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time_t lastupdate; /* time last soa serial increment */
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u_int32_t refresh; /* refresh interval */
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u_int32_t retry; /* refresh retry interval */
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u_int32_t expire; /* expiration time for cached info */
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u_int32_t minimum; /* minimum TTL value */
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u_int32_t serial; /* SOA serial number */
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u_int options; /* zone specific options */
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int zoneclass; /* zone class type */
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int32_t magic; /* private magic stamp for valid'ng */
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struct zonectx *zctx; /* contect zone came from. */
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ISC_LINK(struct zoneinfo) chainlink;
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};
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/* This structure contains context information about a set of
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zones. Presumamable there'd only be one of these passed around the
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various threads, but separating out zones might be useful in some way */
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struct zonectx
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{
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ISC_LIST(zoneinfo_t) freezones;
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ISC_LIST(zoneinfo_t) usedzones;
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isc_mem_t *memctx; /* where we get all our memory from */
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};
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isc_result_t
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new_zonecontext(isc_mem_t *memctx, zonectx_t **zctx) {
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zonectx_t *zc ;
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INSIST(zctx != NULL);
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INSIST(memctx != NULL);
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zc = isc_mem_get(memctx, sizeof *zc);
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INSIST(zc != NULL);
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memset(zc, 0x0, sizeof *zc);
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zc->memctx = memctx;
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*zctx = zc;
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return ISC_R_SUCCESS;
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}
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isc_result_t
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new_zone(zonectx_t *zctx, zoneinfo_t **zone) {
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struct zoneinfo *zp;
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INSIST(zctx != NULL);
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INSIST(zone != NULL);
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if (ISC_LIST_EMPTY(zctx->freezones)) {
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int bytes = sizeof (*zp) * ZONECHUNK;
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int idx;
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zp = isc_mem_get(zctx->memctx, bytes);
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INSIST(zp != NULL);
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memset(zp, 0x0, bytes);
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zp->magic = ZONE_FREE_MAGIC;
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for (idx = 0 ; idx < ZONECHUNK ; idx++) {
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zp[idx].magic = ZONE_FREE_MAGIC;
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ISC_LIST_APPEND(zctx->freezones, &zp[idx], chainlink);
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}
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}
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INSIST(!ISC_LIST_EMPTY(zctx->freezones));
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zp = ISC_LIST_HEAD(zctx->freezones);
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ISC_LIST_UNLINK(zctx->freezones, zp, chainlink);
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ISC_LIST_APPEND(zctx->usedzones, zp, chainlink);
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zp->magic = ZONE_USED_MAGIC;
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zp->zctx = zctx;
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*zone = zp;
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return ISC_R_SUCCESS;
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}
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isc_result_t
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free_zone(zoneinfo_t *zone) {
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INSIST(zone != NULL);
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INSIST(zone->magic == ZONE_USED_MAGIC);
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INSIST(zone->zctx != NULL);
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ISC_LIST_UNLINK(zone->zctx->usedzones, zone, chainlink);
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zone->magic = ZONE_FREE_MAGIC;
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ISC_LIST_APPEND(zone->zctx->freezones, zone, chainlink);
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setorigin(zoneinfo_t *zone, char *origin)
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{
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(void) zone;
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(void) origin;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getorigin(zoneinfo_t *zone, char **origin)
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{
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(void) zone;
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(void) origin;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setfilemodtime(zoneinfo_t *zone, time_t ftime)
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{
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(void) zone;
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(void) ftime;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getfilemodtime(zoneinfo_t *zone, time_t *ftime)
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{
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(void) zone;
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(void) ftime;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setsource(zoneinfo_t *zone, char *source)
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{
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(void) zone;
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(void) source;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getsource(zoneinfo_t *zone, char **source)
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{
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(void) zone;
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(void) source;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setlastupdate(zoneinfo_t *zone, time_t lastupdate)
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{
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(void) zone;
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(void) lastupdate;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getlastupdate(zoneinfo_t *zone, time_t *lastupdate)
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{
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(void) zone;
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(void) lastupdate;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setrefresh(zoneinfo_t *zone, u_int32_t refresh)
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{
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(void) zone;
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(void) refresh;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getrefresh(zoneinfo_t *zone, u_int32_t *refresh)
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{
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(void) zone;
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(void) refresh;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setretry(zoneinfo_t *zone, u_int32_t retry)
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{
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(void) zone;
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(void) retry;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getretry(zoneinfo_t *zone, u_int32_t *retry)
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{
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(void) zone;
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(void) retry;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setexpire(zoneinfo_t *zone, u_int32_t expire)
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{
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(void) zone;
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(void) expire;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getexpire(zoneinfo_t *zone, u_int32_t *expire)
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{
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(void) zone;
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(void) expire;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setminimum(zoneinfo_t *zone, u_int32_t minimum)
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{
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(void) zone;
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(void) minimum;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getminimum(zoneinfo_t *zone, u_int32_t *minimum)
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{
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(void) zone;
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(void) minimum;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setserial(zoneinfo_t *zone, u_int32_t serial)
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{
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(void) zone;
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(void) serial;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getserial(zoneinfo_t *zone, u_int32_t *serial)
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{
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(void) zone;
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(void) serial;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setoptions(zoneinfo_t *zone, u_int options)
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{
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(void) zone;
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(void) options;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getoptions(zoneinfo_t *zone, u_int *options)
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{
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(void) zone;
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(void) options;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_setzoneclass(zoneinfo_t *zone, int zclass)
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{
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(void) zone;
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(void) zclass;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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isc_result_t zone_getzoneclass(zoneinfo_t *zone, int *zclass)
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{
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(void) zone;
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(void) zclass;
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/* XXX fill this in */
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return ISC_R_SUCCESS;
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}
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88
bin/named/zone.h
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88
bin/named/zone.h
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@@ -0,0 +1,88 @@
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/*
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* Copyright (C) 1998, 1999 Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
|
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
|
||||
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
||||
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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||||
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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||||
*/
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#include <config.h>
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#include <sys/types.h>
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#include <isc/list.h>
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#include <isc/result.h>
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#include <isc/mem.h>
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/* Zone context structures contain a set of zones and related information
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(like isc_mem_t contexts to allocate memory from). */
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typedef struct zonectx zonectx_t;
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/* The zone. All access is through function API */
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typedef struct zoneinfo zoneinfo_t;
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/* Allocate a zone context from the memctx pool. All zone-private data
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* structures will be will be made from that same pool.
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*/
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isc_result_t new_zonecontext(isc_mem_t *memctx, zonectx_t **ctx);
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/* Allocate a zone from the give zone context. */
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isc_result_t new_zone(zonectx_t *zctx, zoneinfo_t **zone);
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/* Free up a zone and all associated data structures. The zone knows which
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*zone context to go back to
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*/
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isc_result_t free_zone(zoneinfo_t *zone);
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/* Misc accessor routines. All returned data is through the parameter
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* lists. Function return values indicates success (or not). All the set
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* functions copy their arguments so the caller retains ownership of any
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* pointers passed through the API. All pointers that come back through
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* the API in the get functions (e.g. getorigin and getsource) are still
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* owned by the zoneinfo_t structure and the data they point to must be
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* copied by the caller
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*/
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isc_result_t zone_setorigin(zoneinfo_t *zone, char *origin);
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isc_result_t zone_getorigin(zoneinfo_t *zone, char **origin);
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isc_result_t zone_setfilemodtime(zoneinfo_t *zone, time_t ftime);
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isc_result_t zone_getfilemodtime(zoneinfo_t *zone, time_t *ftime);
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isc_result_t zone_setsource(zoneinfo_t *zone, char *source);
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isc_result_t zone_getsource(zoneinfo_t *zone, char **source);
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isc_result_t zone_setlastupdate(zoneinfo_t *zone, time_t lastupdate);
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isc_result_t zone_getlastupdate(zoneinfo_t *zone, time_t *lastupdate);
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isc_result_t zone_setrefresh(zoneinfo_t *zone, u_int32_t refresh);
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isc_result_t zone_getrefresh(zoneinfo_t *zone, u_int32_t *refresh);
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isc_result_t zone_setretry(zoneinfo_t *zone, u_int32_t retry);
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isc_result_t zone_getretry(zoneinfo_t *zone, u_int32_t *retry);
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isc_result_t zone_setexpire(zoneinfo_t *zone, u_int32_t expire);
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isc_result_t zone_getexpire(zoneinfo_t *zone, u_int32_t *expire);
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isc_result_t zone_setminimum(zoneinfo_t *zone, u_int32_t minimum);
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isc_result_t zone_getminimum(zoneinfo_t *zone, u_int32_t *minimum);
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isc_result_t zone_setserial(zoneinfo_t *zone, u_int32_t serial);
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isc_result_t zone_getserial(zoneinfo_t *zone, u_int32_t *serial);
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isc_result_t zone_setoptions(zoneinfo_t *zone, u_int options);
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isc_result_t zone_getoptions(zoneinfo_t *zone, u_int *options);
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isc_result_t zone_setzoneclass(zoneinfo_t *zone, int zclass);
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isc_result_t zone_getzoneclass(zoneinfo_t *zone, int *zclass);
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17
bin/tests/testzones.c
Normal file
17
bin/tests/testzones.c
Normal file
@@ -0,0 +1,17 @@
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#include <isc/error.h>
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#include "zone.h"
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int
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main (int argc, char **argv) {
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isc_mem_t *memctx = NULL;
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zonectx_t *zonectx = NULL;
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zoneinfo_t *zone = NULL;
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RUNTIME_CHECK(isc_mem_create(0, 0, &memctx) == ISC_R_SUCCESS);
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RUNTIME_CHECK(new_zonecontext(memctx, &zonectx) == ISC_R_SUCCESS);
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RUNTIME_CHECK(new_zone(zonectx, &zone) == ISC_R_SUCCESS);
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}
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Block a user