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https://git.openldap.org/openldap/openldap.git
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683 lines
15 KiB
C
683 lines
15 KiB
C
/* init.c - initialize bdb backend */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/unistd.h>
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#include <ac/stdlib.h>
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#include "back-bdb.h"
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#include "external.h"
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#include <lutil.h>
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static struct bdbi_database {
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char *file;
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char *name;
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int type;
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int flags;
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} bdbi_databases[] = {
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{ "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
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#ifdef BDB_HIER
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{ "id2parent" BDB_SUFFIX, "id2parent", DB_BTREE, 0 },
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#else
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{ "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
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#endif
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{ NULL, NULL, 0, 0 }
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};
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struct berval bdb_uuid = { 0, NULL };
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typedef void * db_malloc(size_t);
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typedef void * db_realloc(void *, size_t);
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#if 0
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static int
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bdb_open( BackendInfo *bi )
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{
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return 0;
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}
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static int
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bdb_destroy( BackendInfo *bi )
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{
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return 0;
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}
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static int
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bdb_close( BackendInfo *bi )
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{
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/* terminate the underlying database system */
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return 0;
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}
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#endif
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static int
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bdb_db_init( BackendDB *be )
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{
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struct bdb_info *bdb;
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_init", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_init: Initializing BDB database\n",
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0, 0, 0 );
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#endif
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/* indicate system schema supported */
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be->be_flags |=
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#ifdef BDB_SUBENTRIES
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SLAP_BFLAG_SUBENTRIES |
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#endif
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#ifdef BDB_ALIASES
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SLAP_BFLAG_ALIASES |
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#endif
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SLAP_BFLAG_REFERRALS;
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/* allocate backend-database-specific stuff */
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bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
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/* DBEnv parameters */
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bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
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bdb->bi_dbenv_xflags = 0;
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bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
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bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
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bdb->bi_lock_detect = DB_LOCK_DEFAULT;
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bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
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bdb->bi_search_stack = NULL;
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#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
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LDAP_LIST_INIT (&bdb->psearch_list);
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#endif
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ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
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ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
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ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_mutex );
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ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
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#ifdef BDB_HIER
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ldap_pvt_thread_rdwr_init( &bdb->bi_tree_rdwr );
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#endif
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be->be_private = bdb;
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return 0;
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}
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int
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bdb_bt_compare(
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DB *db,
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const DBT *usrkey,
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const DBT *curkey
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)
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{
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unsigned char *u, *c;
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int i, x;
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u = usrkey->data;
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c = curkey->data;
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#ifdef WORDS_BIGENDIAN
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for( i = 0; i < (int)sizeof(ID); i++)
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#else
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for( i = sizeof(ID)-1; i >= 0; i--)
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#endif
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{
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x = u[i] - c[i];
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if( x ) return x;
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}
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return 0;
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}
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static int
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bdb_db_open( BackendDB *be )
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{
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int rc, i;
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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u_int32_t flags;
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#ifdef HAVE_EBCDIC
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char path[MAXPATHLEN];
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#endif
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ARGS,
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"bdb_db_open: %s\n", be->be_suffix[0].bv_val, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ARGS,
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"bdb_db_open: %s\n",
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be->be_suffix[0].bv_val, 0, 0 );
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#endif
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#ifndef BDB_MULTIPLE_SUFFIXES
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if ( be->be_suffix[1].bv_val ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
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#endif
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return -1;
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}
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#endif
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/* we should check existance of dbenv_home and db_directory */
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rc = db_env_create( &bdb->bi_dbenv, 0 );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: db_env_create failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: db_env_create failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#endif
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return rc;
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}
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flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
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| DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
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#if 0
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/* Never do automatic recovery, must perform it manually.
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* Otherwise restarting with gentlehup will corrupt the
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* database.
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*/
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if( !(slapMode & SLAP_TOOL_MODE) ) flags |= DB_RECOVER;
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#endif
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bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
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bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
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bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
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#ifdef SLAP_IDL_CACHE
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if ( bdb->bi_idl_cache_max_size ) {
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ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_mutex );
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bdb->bi_idl_cache_size = 0;
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}
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#endif
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#ifdef BDB_SUBDIRS
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{
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char dir[MAXPATHLEN];
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size_t len = strlen( bdb->bi_dbenv_home );
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strcpy( dir, bdb->bi_dbenv_home );
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strcat( &dir[len], BDB_TMP_SUBDIR );
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rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
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dir, db_strerror(rc), rc );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
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dir, db_strerror(rc), rc );
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#endif
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return rc;
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}
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strcat( &dir[len], BDB_LG_SUBDIR );
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rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
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dir, db_strerror(rc), rc );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
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dir, db_strerror(rc), rc );
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#endif
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return rc;
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}
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strcat( &dir[len], BDB_DATA_SUBDIR );
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rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
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dir, db_strerror(rc), rc );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
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dir, db_strerror(rc), rc );
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#endif
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return rc;
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}
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}
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#endif
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, DETAIL1,
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"bdb_db_open: dbenv_open %s\n", bdb->bi_dbenv_home, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"bdb_db_open: dbenv_open(%s)\n",
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bdb->bi_dbenv_home, 0, 0);
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#endif
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#ifdef HAVE_EBCDIC
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strcpy( path, bdb->bi_dbenv_home );
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__atoe( path );
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rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
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path,
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flags,
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bdb->bi_dbenv_mode );
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#else
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rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
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bdb->bi_dbenv_home,
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flags,
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bdb->bi_dbenv_mode );
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#endif
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: dbenv_open failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: dbenv_open failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#endif
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return rc;
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}
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if( bdb->bi_dbenv_xflags != 0 ) {
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rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
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bdb->bi_dbenv_xflags, 1);
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#endif
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return rc;
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}
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}
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flags = DB_THREAD | DB_CREATE | bdb->bi_db_opflags;
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bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
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BDB_INDICES * sizeof(struct bdb_db_info *) );
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/* open (and create) main database */
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for( i = 0; bdbi_databases[i].name; i++ ) {
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struct bdb_db_info *db;
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db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
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rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: db_create(%s) failed: %s (%d)\n",
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bdb->bi_dbenv_home, db_strerror(rc), rc );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: db_create(%s) failed: %s (%d)\n",
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bdb->bi_dbenv_home, db_strerror(rc), rc );
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#endif
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return rc;
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}
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if( i == BDB_ID2ENTRY ) {
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rc = db->bdi_db->set_bt_compare( db->bdi_db,
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bdb_bt_compare );
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rc = db->bdi_db->set_pagesize( db->bdi_db,
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BDB_ID2ENTRY_PAGESIZE );
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} else {
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#ifdef BDB_HIER
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rc = db->bdi_db->set_bt_compare( db->bdi_db,
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bdb_bt_compare );
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#else
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rc = db->bdi_db->set_flags( db->bdi_db,
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DB_DUP | DB_DUPSORT );
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rc = db->bdi_db->set_dup_compare( db->bdi_db,
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bdb_bt_compare );
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#endif
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rc = db->bdi_db->set_pagesize( db->bdi_db,
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BDB_PAGESIZE );
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}
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#ifdef HAVE_EBCDIC
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strcpy( path, bdbi_databases[i].file );
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__atoe( path );
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rc = DB_OPEN( db->bdi_db,
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path,
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/* bdbi_databases[i].name, */ NULL,
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bdbi_databases[i].type,
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bdbi_databases[i].flags | flags,
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bdb->bi_dbenv_mode );
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#else
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rc = DB_OPEN( db->bdi_db,
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bdbi_databases[i].file,
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/* bdbi_databases[i].name, */ NULL,
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bdbi_databases[i].type,
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bdbi_databases[i].flags | flags,
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bdb->bi_dbenv_mode );
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#endif
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: db_create(%s) failed: %s (%d)\n",
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bdb->bi_dbenv_home, db_strerror(rc), rc );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: db_open(%s) failed: %s (%d)\n",
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bdb->bi_dbenv_home, db_strerror(rc), rc );
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#endif
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return rc;
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}
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db->bdi_name = bdbi_databases[i].name;
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bdb->bi_databases[i] = db;
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}
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bdb->bi_databases[i] = NULL;
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bdb->bi_ndatabases = i;
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/* get nextid */
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rc = bdb_last_id( be, NULL );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_open: last_id(%s) failed: %s (%d)\n",
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bdb->bi_dbenv_home, db_strerror(rc), rc );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_open: last_id(%s) failed: %s (%d)\n",
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bdb->bi_dbenv_home, db_strerror(rc), rc );
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#endif
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return rc;
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}
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/* <insert> open (and create) index databases */
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#ifdef BDB_HIER
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rc = bdb_build_tree( be );
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#endif
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return 0;
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}
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static int
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bdb_db_close( BackendDB *be )
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{
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int rc;
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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struct bdb_db_info *db;
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#ifdef SLAP_IDL_CACHE
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bdb_idl_cache_entry_t *entry, *next_entry;
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#endif
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while( bdb->bi_ndatabases-- ) {
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db = bdb->bi_databases[bdb->bi_ndatabases];
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rc = db->bdi_db->close( db->bdi_db, 0 );
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/* Lower numbered names are not strdup'd */
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if( bdb->bi_ndatabases >= BDB_NDB )
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free( db->bdi_name );
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free( db );
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}
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free( bdb->bi_databases );
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bdb_attr_index_destroy( bdb->bi_attrs );
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bdb_cache_release_all (&bdb->bi_cache);
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#ifdef SLAP_IDL_CACHE
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ldap_pvt_thread_mutex_lock ( &bdb->bi_idl_tree_mutex );
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entry = bdb->bi_idl_lru_head;
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while ( entry != NULL ) {
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next_entry = entry->idl_lru_next;
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avl_delete( &bdb->bi_idl_tree, (caddr_t) entry, bdb_idl_entry_cmp );
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free( entry->idl );
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free( entry->kstr.bv_val );
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free( entry );
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entry = next_entry;
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}
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ldap_pvt_thread_mutex_unlock ( &bdb->bi_idl_tree_mutex );
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#endif
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return 0;
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}
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static int
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bdb_db_destroy( BackendDB *be )
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{
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int rc;
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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/* close db environment */
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if( bdb->bi_dbenv ) {
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/* force a checkpoint */
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rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#else
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Debug( LDAP_DEBUG_ANY,
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"bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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#endif
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}
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bdb_cache_release_all (&bdb->bi_cache);
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rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
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bdb->bi_dbenv = NULL;
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if( rc != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_BDB, ERR,
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"bdb_db_destroy: close failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_db_destroy: close failed: %s (%d)\n",
|
|
db_strerror(rc), rc, 0 );
|
|
#endif
|
|
return rc;
|
|
}
|
|
}
|
|
|
|
if( bdb->bi_dbenv_home ) ch_free( bdb->bi_dbenv_home );
|
|
|
|
#ifdef BDB_HIER
|
|
ldap_pvt_thread_rdwr_destroy( &bdb->bi_tree_rdwr );
|
|
#endif
|
|
ldap_pvt_thread_rdwr_destroy ( &bdb->bi_cache.c_rwlock );
|
|
ldap_pvt_thread_mutex_destroy( &bdb->bi_cache.lru_mutex );
|
|
ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
|
|
ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
|
|
|
|
ch_free( bdb );
|
|
be->be_private = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef SLAPD_BDB_DYNAMIC
|
|
int back_bdb_LTX_init_module( int argc, char *argv[] ) {
|
|
BackendInfo bi;
|
|
|
|
memset( &bi, '\0', sizeof(bi) );
|
|
bi.bi_type = "bdb";
|
|
bi.bi_init = bdb_initialize;
|
|
|
|
backend_add( &bi );
|
|
return 0;
|
|
}
|
|
#endif /* SLAPD_BDB_DYNAMIC */
|
|
|
|
int
|
|
bdb_initialize(
|
|
BackendInfo *bi
|
|
)
|
|
{
|
|
static char *controls[] = {
|
|
LDAP_CONTROL_MANAGEDSAIT,
|
|
LDAP_CONTROL_NOOP,
|
|
#ifdef LDAP_CONTROL_PAGEDRESULTS
|
|
LDAP_CONTROL_PAGEDRESULTS,
|
|
#endif
|
|
LDAP_CONTROL_VALUESRETURNFILTER,
|
|
#ifdef LDAP_CONTROL_SUBENTRIES
|
|
LDAP_CONTROL_SUBENTRIES,
|
|
#endif
|
|
#ifdef LDAP_CLIENT_UPDATE
|
|
LDAP_CONTROL_CLIENT_UPDATE,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
bi->bi_controls = controls;
|
|
|
|
/* initialize the underlying database system */
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_initialize\n", 0, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_TRACE, "bdb_initialize: initialize BDB backend\n",
|
|
0, 0, 0 );
|
|
#endif
|
|
|
|
{ /* version check */
|
|
int major, minor, patch;
|
|
char *version = db_version( &major, &minor, &patch );
|
|
#ifdef HAVE_EBCDIC
|
|
char v2[1024];
|
|
|
|
/* All our stdio does an ASCII to EBCDIC conversion on
|
|
* the output. Strings from the BDB library are already
|
|
* in EBCDIC; we have to go back and forth...
|
|
*/
|
|
strcpy( v2, version );
|
|
__etoa( v2 );
|
|
version = v2;
|
|
#endif
|
|
|
|
if( major != DB_VERSION_MAJOR ||
|
|
minor != DB_VERSION_MINOR ||
|
|
patch < DB_VERSION_PATCH )
|
|
{
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( BACK_BDB, ERR,
|
|
"bdb_db_initialize: version mismatch: "
|
|
"\texpected: %s \tgot: %s\n", DB_VERSION_STRING, version, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"bdb_initialize: version mismatch\n"
|
|
"\texpected: " DB_VERSION_STRING "\n"
|
|
"\tgot: %s \n", version, 0, 0 );
|
|
#endif
|
|
}
|
|
|
|
#ifdef NEW_LOGGING
|
|
LDAP_LOG( BACK_BDB, DETAIL1,
|
|
"bdb_db_initialize: %s\n", version, 0, 0 );
|
|
#else
|
|
Debug( LDAP_DEBUG_ANY, "bdb_initialize: %s\n",
|
|
version, 0, 0 );
|
|
#endif
|
|
}
|
|
|
|
db_env_set_func_free( ber_memfree );
|
|
db_env_set_func_malloc( (db_malloc *)ber_memalloc );
|
|
db_env_set_func_realloc( (db_realloc *)ber_memrealloc );
|
|
#ifndef NO_THREAD
|
|
/* This is a no-op on a NO_THREAD build. Leave the default
|
|
* alone so that BDB will sleep on interprocess conflicts.
|
|
*/
|
|
db_env_set_func_yield( ldap_pvt_thread_yield );
|
|
#endif
|
|
|
|
{
|
|
static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
|
|
|
|
bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
|
|
bdb_uuid.bv_val = uuidbuf;
|
|
}
|
|
|
|
bi->bi_open = 0;
|
|
bi->bi_close = 0;
|
|
bi->bi_config = 0;
|
|
bi->bi_destroy = 0;
|
|
|
|
bi->bi_db_init = bdb_db_init;
|
|
bi->bi_db_config = bdb_db_config;
|
|
bi->bi_db_open = bdb_db_open;
|
|
bi->bi_db_close = bdb_db_close;
|
|
bi->bi_db_destroy = bdb_db_destroy;
|
|
|
|
bi->bi_op_add = bdb_add;
|
|
bi->bi_op_bind = bdb_bind;
|
|
bi->bi_op_compare = bdb_compare;
|
|
bi->bi_op_delete = bdb_delete;
|
|
bi->bi_op_modify = bdb_modify;
|
|
bi->bi_op_modrdn = bdb_modrdn;
|
|
bi->bi_op_search = bdb_search;
|
|
|
|
bi->bi_op_unbind = 0;
|
|
|
|
#ifdef LDAP_CLIENT_UPDATE
|
|
bi->bi_op_abandon = bdb_abandon;
|
|
bi->bi_op_cancel = bdb_cancel;
|
|
#else
|
|
bi->bi_op_abandon = 0;
|
|
bi->bi_op_cancel = 0;
|
|
#endif
|
|
|
|
bi->bi_extended = bdb_extended;
|
|
|
|
#if 1
|
|
/*
|
|
* these routines (and their callers) are not yet designed
|
|
* to work with transaction. Using them may cause deadlock.
|
|
*/
|
|
bi->bi_acl_group = bdb_group;
|
|
bi->bi_acl_attribute = bdb_attribute;
|
|
#else
|
|
bi->bi_acl_group = 0;
|
|
bi->bi_acl_attribute = 0;
|
|
#endif
|
|
|
|
bi->bi_chk_referrals = bdb_referrals;
|
|
bi->bi_operational = bdb_operational;
|
|
bi->bi_has_subordinates = bdb_hasSubordinates;
|
|
bi->bi_entry_release_rw = bdb_entry_release;
|
|
|
|
/*
|
|
* hooks for slap tools
|
|
*/
|
|
bi->bi_tool_entry_open = bdb_tool_entry_open;
|
|
bi->bi_tool_entry_close = bdb_tool_entry_close;
|
|
bi->bi_tool_entry_first = bdb_tool_entry_next;
|
|
bi->bi_tool_entry_next = bdb_tool_entry_next;
|
|
bi->bi_tool_entry_get = bdb_tool_entry_get;
|
|
bi->bi_tool_entry_put = bdb_tool_entry_put;
|
|
bi->bi_tool_entry_reindex = bdb_tool_entry_reindex;
|
|
bi->bi_tool_sync = 0;
|
|
|
|
bi->bi_connection_init = 0;
|
|
bi->bi_connection_destroy = 0;
|
|
|
|
return 0;
|
|
}
|