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defb237325
dns_name_compare() had logic to put @ and the top record in the tree being enumerated first, but if a domain had both then this would break the older qsort() implementation in ldb_qsort() and cause a read of memory before the base pointer. By removing this special case (not required as the base pointer is already seperatly located, no matter were it is in the returned records) the crash is avoided. BUG: https://bugzilla.samba.org/show_bug.cgi?id=14138 Signed-off-by: Andrew Bartlett <abartlet@samba.org>
265 lines
7.6 KiB
C
265 lines
7.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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DNS Server
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Copyright (C) Amitay Isaacs 2011
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __DNSSERVER_H__
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#define __DNSSERVER_H__
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#include "librpc/gen_ndr/dnsp.h"
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#include "librpc/gen_ndr/dnsserver.h"
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#include "param/param.h"
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#include "ldb.h"
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struct dnsserver_serverinfo {
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uint32_t dwVersion;
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uint8_t fBootMethod;
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uint8_t fAdminConfigured;
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uint8_t fAllowUpdate;
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uint8_t fDsAvailable;
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char * pszServerName;
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char * pszDsContainer;
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uint32_t dwDsForestVersion;
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uint32_t dwDsDomainVersion;
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uint32_t dwDsDsaVersion;
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uint32_t fReadOnlyDC;
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char * pszDomainName;
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char * pszForestName;
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char * pszDomainDirectoryPartition;
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char * pszForestDirectoryPartition;
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struct DNS_ADDR_ARRAY * aipServerAddrs;
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struct DNS_ADDR_ARRAY * aipListenAddrs;
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struct IP4_ARRAY * aipForwarders;
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struct IP4_ARRAY * aipLogFilter;
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char * pwszLogFilePath;
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uint32_t dwLogLevel;
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uint32_t dwDebugLevel;
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uint32_t dwEventLogLevel;
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uint32_t dwLogFileMaxSize;
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uint32_t dwForwardTimeout;
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uint32_t dwRpcProtocol;
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uint32_t dwNameCheckFlag;
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uint32_t cAddressAnswerLimit;
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uint32_t dwRecursionRetry;
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uint32_t dwRecursionTimeout;
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uint32_t dwMaxCacheTtl;
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uint32_t dwDsPollingInterval;
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uint32_t dwLocalNetPriorityNetMask;
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uint32_t dwScavengingInterval;
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uint32_t dwDefaultRefreshInterval;
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uint32_t dwDefaultNoRefreshInterval;
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uint32_t dwLastScavengeTime;
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uint8_t fAutoReverseZones;
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uint8_t fAutoCacheUpdate;
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uint8_t fRecurseAfterForwarding;
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uint8_t fForwardDelegations;
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uint8_t fNoRecursion;
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uint8_t fSecureResponses;
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uint8_t fRoundRobin;
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uint8_t fLocalNetPriority;
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uint8_t fBindSecondaries;
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uint8_t fWriteAuthorityNs;
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uint8_t fStrictFileParsing;
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uint8_t fLooseWildcarding;
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uint8_t fDefaultAgingState;
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};
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struct dnsserver_zoneinfo {
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uint8_t Version;
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uint32_t Flags;
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uint8_t dwZoneType;
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uint8_t fReverse;
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uint8_t fAllowUpdate;
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uint8_t fPaused;
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uint8_t fShutdown;
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uint8_t fAutoCreated;
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uint8_t fUseDatabase;
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char * pszDataFile;
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struct IP4_ARRAY * aipMasters;
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uint32_t fSecureSecondaries;
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uint32_t fNotifyLevel;
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struct IP4_ARRAY * aipSecondaries;
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struct IP4_ARRAY * aipNotify;
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uint32_t fUseWins;
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uint32_t fUseNbstat;
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uint32_t fAging;
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uint32_t dwNoRefreshInterval;
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uint32_t dwRefreshInterval;
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uint32_t dwAvailForScavengeTime;
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struct IP4_ARRAY * aipScavengeServers;
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uint32_t dwForwarderTimeout;
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uint32_t fForwarderSlave;
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struct IP4_ARRAY * aipLocalMasters;
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char * pwszZoneDn;
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uint32_t dwLastSuccessfulSoaCheck;
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uint32_t dwLastSuccessfulXfr;
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uint32_t fQueuedForBackgroundLoad;
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uint32_t fBackgroundLoadInProgress;
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uint8_t fReadOnlyZone;
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uint32_t dwLastXfrAttempt;
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uint32_t dwLastXfrResult;
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};
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struct dnsserver_partition {
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struct dnsserver_partition *prev, *next;
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struct ldb_dn *partition_dn;
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const char *pszDpFqdn;
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uint32_t dwDpFlags;
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bool is_forest;
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int zones_count;
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};
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struct dnsserver_partition_info {
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const char *pszCrDn;
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uint32_t dwState;
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uint32_t dwReplicaCount;
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struct DNS_RPC_DP_REPLICA **ReplicaArray;
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};
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struct dnsserver_zone {
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struct dnsserver_zone *prev, *next;
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struct dnsserver_partition *partition;
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const char *name;
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struct ldb_dn *zone_dn;
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struct dnsserver_zoneinfo *zoneinfo;
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struct dnsp_DnsProperty *tmp_props;
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int32_t num_props;
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};
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struct dns_tree {
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const char *name;
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int level;
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unsigned int num_children;
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struct dns_tree **children;
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void *data;
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};
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/* Data structure manipulation functions from dnsdata.c */
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struct IP4_ARRAY *ip4_array_copy(TALLOC_CTX *mem_ctx, struct IP4_ARRAY *ip4);
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struct DNS_ADDR_ARRAY *ip4_array_to_dns_addr_array(TALLOC_CTX *mem_ctx, struct IP4_ARRAY *ip4);
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struct IP4_ARRAY *dns_addr_array_to_ip4_array(TALLOC_CTX *mem_ctx,
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struct DNS_ADDR_ARRAY *ip);
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struct DNS_ADDR_ARRAY *dns_addr_array_copy(TALLOC_CTX *mem_ctx, struct DNS_ADDR_ARRAY *addr);
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int dns_split_name_components(TALLOC_CTX *mem_ctx, const char *name, char ***components);
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char *dns_split_node_name(TALLOC_CTX *mem_ctx, const char *node_name, const char *zone_name);
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int dns_name_compare(struct ldb_message * const *m1, struct ldb_message * const *m2,
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const char *search_name);
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bool dns_record_match(struct dnsp_DnssrvRpcRecord *rec1, struct dnsp_DnssrvRpcRecord *rec2);
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void dnsp_to_dns_copy(TALLOC_CTX *mem_ctx, struct dnsp_DnssrvRpcRecord *dnsp,
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struct DNS_RPC_RECORD *dns);
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WERROR dns_to_dnsp_convert(TALLOC_CTX *mem_ctx, struct DNS_RPC_RECORD *dns,
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struct dnsp_DnssrvRpcRecord **out_dnsp,
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bool check_name);
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struct dns_tree *dns_build_tree(TALLOC_CTX *mem_ctx, const char *name, struct ldb_result *res);
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WERROR dns_fill_records_array(TALLOC_CTX *mem_ctx, struct dnsserver_zone *z,
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enum dns_record_type record_type,
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unsigned int select_flag, const char *zone_name,
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struct ldb_message *msg, int num_children,
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struct DNS_RPC_RECORDS_ARRAY *recs,
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char ***add_names, int *add_count);
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/* Utility functions from dnsutils.c */
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struct dnsserver_serverinfo *dnsserver_init_serverinfo(TALLOC_CTX *mem_ctx,
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struct loadparm_context *lp_ctx,
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struct ldb_context *samdb);
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struct dnsserver_zoneinfo *dnsserver_init_zoneinfo(struct dnsserver_zone *zone,
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struct dnsserver_serverinfo *serverinfo);
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struct dnsserver_zone *dnsserver_find_zone(struct dnsserver_zone *zones,
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const char *zone_name);
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struct ldb_dn *dnsserver_name_to_dn(TALLOC_CTX *mem_ctx, struct dnsserver_zone *z,
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const char *name);
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uint32_t dnsserver_zone_to_request_filter(const char *zone);
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/* Database functions from dnsdb.c */
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struct dnsserver_partition *dnsserver_db_enumerate_partitions(TALLOC_CTX *mem_ctx,
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struct dnsserver_serverinfo *serverinfo,
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struct ldb_context *samdb);
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struct dnsserver_zone *dnsserver_db_enumerate_zones(TALLOC_CTX *mem_ctx,
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struct ldb_context *samdb,
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struct dnsserver_partition *p);
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struct dnsserver_partition_info *dnsserver_db_partition_info(TALLOC_CTX *mem_ctx,
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struct ldb_context *samdb,
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struct dnsserver_partition *p);
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WERROR dnsserver_db_add_empty_node(TALLOC_CTX *mem_ctx,
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struct ldb_context *samdb,
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struct dnsserver_zone *z,
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const char *node_name);
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WERROR dnsserver_db_add_record(TALLOC_CTX *mem_ctx,
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struct ldb_context *samdb,
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struct dnsserver_zone *z,
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const char *node_name,
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struct DNS_RPC_RECORD *add_record);
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WERROR dnsserver_db_update_record(TALLOC_CTX *mem_ctx,
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struct ldb_context *samdb,
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struct dnsserver_zone *z,
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const char *node_name,
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struct DNS_RPC_RECORD *add_record,
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struct DNS_RPC_RECORD *del_record);
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WERROR dnsserver_db_do_reset_dword(struct ldb_context *samdb,
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struct dnsserver_zone *z,
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struct DNS_RPC_NAME_AND_PARAM *n_p);
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WERROR dnsserver_db_delete_record(TALLOC_CTX *mem_ctx,
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struct ldb_context *samdb,
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struct dnsserver_zone *z,
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const char *node_name,
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struct DNS_RPC_RECORD *del_record);
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WERROR dnsserver_db_create_zone(struct ldb_context *samdb,
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struct dnsserver_partition *partitions,
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struct dnsserver_zone *z,
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struct loadparm_context *lp_ctx);
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WERROR dnsserver_db_delete_zone(struct ldb_context *samdb,
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struct dnsserver_zone *z);
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#endif /* __DNSSERVER_H__ */
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