]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-bdb/init.c
First rounded of changes in prep for 2.2.beta3
[openldap] / servers / slapd / back-bdb / init.c
index 0574375c08b606ad77630cfa98311dd6389eff40..fe6bbdf2705cfa7f85466940222d2bf5aa6ebd3e 100644 (file)
@@ -1,7 +1,7 @@
 /* init.c - initialize bdb backend */
 /* $OpenLDAP$ */
 /*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
  */
 
 
 #include "back-bdb.h"
 #include "external.h"
+#include <lutil.h>
 
-static struct bdbi_database {
+static const struct bdbi_database {
        char *file;
        char *name;
        int type;
        int flags;
 } bdbi_databases[] = {
        { "id2entry" BDB_SUFFIX, "id2entry", DB_BTREE, 0 },
-#ifdef BDB_HIER
-       { "id2parent" BDB_SUFFIX, "id2parent", DB_BTREE, 0 },
-#else
        { "dn2id" BDB_SUFFIX, "dn2id", DB_BTREE, 0 },
-#endif
        { NULL, NULL, 0, 0 }
 };
 
+struct berval bdb_uuid = { 0, NULL };
+
+typedef void * db_malloc(size_t);
+typedef void * db_realloc(void *, size_t);
+
 #if 0
 static int
-bdb_destroy( BackendInfo *bi )
+bdb_open( BackendInfo *bi )
 {
        return 0;
 }
 
 static int
-bdb_open( BackendInfo *bi )
+bdb_destroy( BackendInfo *bi )
 {
-       /* initialize the underlying database system */
-       Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
-               0, 0, 0 );
-
        return 0;
 }
 
@@ -60,53 +58,51 @@ bdb_db_init( BackendDB *be )
 {
        struct bdb_info *bdb;
 
+#ifdef NEW_LOGGING
+       LDAP_LOG( BACK_BDB, ENTRY, "bdb_db_init", 0, 0, 0 );
+#else
        Debug( LDAP_DEBUG_ANY,
                "bdb_db_init: Initializing BDB database\n",
                0, 0, 0 );
+#endif
+
+       /* indicate system schema supported */
+       be->be_flags |=
+               SLAP_BFLAG_INCREMENT |
+#ifdef BDB_SUBENTRIES
+               SLAP_BFLAG_SUBENTRIES |
+#endif
+#ifdef BDB_ALIASES
+               SLAP_BFLAG_ALIASES |
+#endif
+               SLAP_BFLAG_REFERRALS;
 
        /* allocate backend-database-specific stuff */
        bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
 
        /* DBEnv parameters */
-       bdb->bi_dbenv_home = ch_strdup( BDB_DBENV_HOME );
+       bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
        bdb->bi_dbenv_xflags = 0;
-       bdb->bi_dbenv_mode = DEFAULT_MODE;
-       bdb->bi_txn = 1;        /* default to using transactions */
+       bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
 
-#ifndef NO_THREADS
-       bdb->bi_lock_detect = DB_LOCK_NORUN;
-#endif
+       bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
+
+       bdb->bi_lock_detect = DB_LOCK_DEFAULT;
+       bdb->bi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
+       bdb->bi_search_stack = NULL;
+
+       LDAP_LIST_INIT (&bdb->bi_psearch_list);
 
        ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
        ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
-#ifdef BDB_HIER
-       ldap_pvt_thread_rdwr_init( &bdb->bi_tree_rdwr );
-#endif
+       ldap_pvt_thread_mutex_init( &bdb->bi_cache.lru_mutex );
+       ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_dntree.bei_kids_mutex );
+       ldap_pvt_thread_rdwr_init ( &bdb->bi_cache.c_rwlock );
 
        be->be_private = bdb;
-       return 0;
-}
-
-#ifndef NO_THREADS
-static void *lock_detect_task( void *arg )
-{
-       struct bdb_info *bdb = (struct bdb_info *) arg;
-
-       while( bdb->bi_dbenv != NULL ) {
-               int rc;
-               sleep( bdb->bi_lock_detect_seconds );
-
-               rc = LOCK_DETECT( bdb->bi_dbenv, 0,
-                       bdb->bi_lock_detect, NULL );
-
-               if( rc != 0 ) {
-                       break;
-               }
-       }
 
-       return NULL;
+       return 0;
 }
-#endif
 
 int
 bdb_bt_compare(
@@ -116,20 +112,21 @@ bdb_bt_compare(
 )
 {
        unsigned char *u, *c;
-       int i;
+       int i, x;
 
        u = usrkey->data;
        c = curkey->data;
 
 #ifdef WORDS_BIGENDIAN
-       for( i = 0; i < sizeof(ID); i++)
+       for( i = 0; i < (int)sizeof(ID); i++)
 #else
        for( i = sizeof(ID)-1; i >= 0; i--)
 #endif
        {
-               if( u[i] - c[i] )
-                       return u[i] - c[i];
+               x = u[i] - c[i];
+               if( x ) return x;
        }
+
        return 0;
 }
 
@@ -139,84 +136,184 @@ bdb_db_open( BackendDB *be )
        int rc, i;
        struct bdb_info *bdb = (struct bdb_info *) be->be_private;
        u_int32_t flags;
+#ifdef HAVE_EBCDIC
+       char path[MAXPATHLEN];
+#endif
 
+#ifdef NEW_LOGGING
+       LDAP_LOG( BACK_BDB, ARGS, 
+               "bdb_db_open: %s\n", be->be_suffix[0].bv_val, 0, 0 );
+#else
        Debug( LDAP_DEBUG_ARGS,
                "bdb_db_open: %s\n",
-               be->be_suffix[0], 0, 0 );
+               be->be_suffix[0].bv_val, 0, 0 );
+#endif
 
+#ifndef BDB_MULTIPLE_SUFFIXES
+       if ( be->be_suffix[1].bv_val ) {
+#ifdef NEW_LOGGING
+       LDAP_LOG( BACK_BDB, ERR, 
+               "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
+#else
+       Debug( LDAP_DEBUG_ANY,
+               "bdb_db_open: only one suffix allowed\n", 0, 0, 0 );
+#endif
+               return -1;
+       }
+#endif
        /* we should check existance of dbenv_home and db_directory */
 
        rc = db_env_create( &bdb->bi_dbenv, 0 );
        if( rc != 0 ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( BACK_BDB, ERR, 
+                       "bdb_db_open: db_env_create failed: %s (%d)\n", 
+                       db_strerror(rc), rc, 0 );
+#else
                Debug( LDAP_DEBUG_ANY,
                        "bdb_db_open: db_env_create failed: %s (%d)\n",
                        db_strerror(rc), rc, 0 );
+#endif
                return rc;
        }
 
-       flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE;
-
-       if( bdb->bi_txn ) {
-               flags |= DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN | DB_RECOVER;
+       flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
+               | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN;
+       
+#if 0
+       /* Never do automatic recovery, must perform it manually.
+        * Otherwise restarting with gentlehup will corrupt the
+        * database.
+        */
+       if( !(slapMode & SLAP_TOOL_MODE) ) flags |= DB_RECOVER;
+#endif
 
-       } else {
-               flags |= DB_INIT_CDB;
-               bdb->bi_txn_cp = 0;
+       /* If a key was set, use shared memory for the BDB environment */
+       if ( bdb->bi_shm_key ) {
+               bdb->bi_dbenv->set_shm_key( bdb->bi_dbenv, bdb->bi_shm_key );
+               flags |= DB_SYSTEM_MEM;
        }
 
-       bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0] );
+       bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0].bv_val );
        bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
+       bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
+
+#ifdef SLAP_IDL_CACHE
+       if ( bdb->bi_idl_cache_max_size ) {
+               bdb->bi_idl_tree = NULL;
+               ldap_pvt_thread_rdwr_init( &bdb->bi_idl_tree_rwlock );
+               ldap_pvt_thread_mutex_init( &bdb->bi_idl_tree_lrulock );
+               bdb->bi_idl_cache_size = 0;
+       }
+#endif
 
 #ifdef BDB_SUBDIRS
        {
-               char dir[MAXPATHLEN];
-               size_t len = strlen( bdb->bi_dbenv_home );
-
-               strcpy( dir, bdb->bi_dbenv_home );
-               strcat( &dir[len], BDB_TMP_SUBDIR );
+               char dir[MAXPATHLEN], *ptr;
                
+               if (bdb->bi_dbenv_home[0] == '.') {
+                       /* If home is a relative path, relative subdirs
+                        * are just concat'd by BDB. We don't want the
+                        * path to be concat'd twice, e.g.
+                        * ./test-db/./test-db/tmp
+                        */
+                       ptr = dir;
+               } else {
+                       ptr = lutil_strcopy( dir, bdb->bi_dbenv_home );
+                       *ptr++ = LDAP_DIRSEP[0];
+#ifdef HAVE_EBCDIC
+                       __atoe( dir );
+#endif
+               }
+
+               strcpy( ptr, BDB_TMP_SUBDIR );
+#ifdef HAVE_EBCDIC
+               __atoe( ptr );
+#endif
                rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n", 
+                               dir, db_strerror(rc), rc );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
                                dir, db_strerror(rc), rc );
+#endif
                        return rc;
                }
 
-               strcat( &dir[len], BDB_LG_SUBDIR );
-
+               strcpy( ptr, BDB_LG_SUBDIR );
+#ifdef HAVE_EBCDIC
+               __atoe( ptr );
+#endif
                rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n", 
+                               dir, db_strerror(rc), rc );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
                                dir, db_strerror(rc), rc );
+#endif
                        return rc;
                }
 
-               strcat( &dir[len], BDB_DATA_SUBDIR );
-
+               strcpy( ptr, BDB_DATA_SUBDIR );
+#ifdef HAVE_EBCDIC
+               __atoe( ptr );
+#endif
                rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
+                               dir, db_strerror(rc), rc );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
                                dir, db_strerror(rc), rc );
+#endif
                        return rc;
                }
        }
 #endif
 
+#ifdef NEW_LOGGING
+       LDAP_LOG( BACK_BDB, DETAIL1, 
+               "bdb_db_open: dbenv_open %s\n", bdb->bi_dbenv_home, 0, 0 );
+#else
        Debug( LDAP_DEBUG_TRACE,
                "bdb_db_open: dbenv_open(%s)\n",
                bdb->bi_dbenv_home, 0, 0);
+#endif
 
+#ifdef HAVE_EBCDIC
+       strcpy( path, bdb->bi_dbenv_home );
+       __atoe( path );
+       rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
+               path,
+               flags,
+               bdb->bi_dbenv_mode );
+#else
        rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
                bdb->bi_dbenv_home,
                flags,
                bdb->bi_dbenv_mode );
+#endif
        if( rc != 0 ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG( BACK_BDB, ERR, 
+                       "bdb_db_open: dbenv_open failed: %s (%d)\n", 
+                       db_strerror(rc), rc, 0 );
+#else
                Debug( LDAP_DEBUG_ANY,
                        "bdb_db_open: dbenv_open failed: %s (%d)\n",
                        db_strerror(rc), rc, 0 );
+#endif
                return rc;
        }
 
@@ -224,14 +321,20 @@ bdb_db_open( BackendDB *be )
                rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
                        bdb->bi_dbenv_xflags, 1);
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: dbenv_set_flags failed: %s (%d)\n", 
+                               db_strerror(rc), rc, 0 );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
                                db_strerror(rc), rc, 0 );
+#endif
                        return rc;
                }
        }
 
-       flags = DB_THREAD | DB_CREATE | bdb->bi_db_opflags;
+       flags = DB_THREAD | bdb->bi_db_opflags;
 
        bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
                BDB_INDICES * sizeof(struct bdb_db_info *) );
@@ -244,9 +347,15 @@ bdb_db_open( BackendDB *be )
 
                rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: db_create(%s) failed: %s (%d)\n", 
+                               bdb->bi_dbenv_home, db_strerror(rc), rc );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_open: db_create(%s) failed: %s (%d)\n",
                                bdb->bi_dbenv_home, db_strerror(rc), rc );
+#endif
                        return rc;
                }
 
@@ -255,34 +364,69 @@ bdb_db_open( BackendDB *be )
                                bdb_bt_compare );
                        rc = db->bdi_db->set_pagesize( db->bdi_db,
                                BDB_ID2ENTRY_PAGESIZE );
+                       if ( slapMode & SLAP_TOOL_READMAIN ) {
+                               flags |= DB_RDONLY;
+                       } else {
+                               flags |= DB_CREATE;
+                       }
                } else {
-#ifdef BDB_HIER
-                       rc = db->bdi_db->set_bt_compare( db->bdi_db,
-                               bdb_bt_compare );
-#elif defined(BDB_IDL_MULTI)
                        rc = db->bdi_db->set_flags( db->bdi_db, 
-                               DB_DUP | DB_DUPSORT | DB_NODUPDATA );
+                               DB_DUP | DB_DUPSORT );
+#ifndef BDB_HIER
                        rc = db->bdi_db->set_dup_compare( db->bdi_db,
                                bdb_bt_compare );
+                       if ( slapMode & SLAP_TOOL_READONLY ) {
+                               flags |= DB_RDONLY;
+                       } else {
+                               flags |= DB_CREATE;
+                       }
+#else
+                       rc = db->bdi_db->set_dup_compare( db->bdi_db,
+                               bdb_dup_compare );
+                       rc = db->bdi_db->set_bt_compare( db->bdi_db,
+                               bdb_bt_compare );
+                       if ( slapMode & (SLAP_TOOL_READONLY|SLAP_TOOL_READMAIN) ) {
+                               flags |= DB_RDONLY;
+                       } else {
+                               flags |= DB_CREATE;
+                       }
 #endif
                        rc = db->bdi_db->set_pagesize( db->bdi_db,
                                BDB_PAGESIZE );
                }
 
-               rc = db->bdi_db->open( db->bdi_db,
+#ifdef HAVE_EBCDIC
+               strcpy( path, bdbi_databases[i].file );
+               __atoe( path );
+               rc = DB_OPEN( db->bdi_db,
+                       path,
+               /*      bdbi_databases[i].name, */ NULL,
+                       bdbi_databases[i].type,
+                       bdbi_databases[i].flags | flags | DB_AUTO_COMMIT,
+                       bdb->bi_dbenv_mode );
+#else
+               rc = DB_OPEN( db->bdi_db,
                        bdbi_databases[i].file,
                /*      bdbi_databases[i].name, */ NULL,
                        bdbi_databases[i].type,
-                       bdbi_databases[i].flags | flags,
+                       bdbi_databases[i].flags | flags | DB_AUTO_COMMIT,
                        bdb->bi_dbenv_mode );
+#endif
 
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: db_create(%s) failed: %s (%d)\n", 
+                               bdb->bi_dbenv_home, db_strerror(rc), rc );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_open: db_open(%s) failed: %s (%d)\n",
                                bdb->bi_dbenv_home, db_strerror(rc), rc );
+#endif
                        return rc;
                }
 
+               flags &= ~(DB_CREATE | DB_RDONLY);
                db->bdi_name = bdbi_databases[i].name;
                bdb->bi_databases[i] = db;
        }
@@ -293,24 +437,19 @@ bdb_db_open( BackendDB *be )
        /* get nextid */
        rc = bdb_last_id( be, NULL );
        if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_open: last_id(%s) failed: %s (%d)\n", 
+                               bdb->bi_dbenv_home, db_strerror(rc), rc );
+#else
                Debug( LDAP_DEBUG_ANY,
                        "bdb_db_open: last_id(%s) failed: %s (%d)\n",
                        bdb->bi_dbenv_home, db_strerror(rc), rc );
+#endif
                return rc;
        }
 
        /* <insert> open (and create) index databases */
-#ifdef BDB_HIER
-       rc = bdb_build_tree( be );
-#endif
-
-#ifndef NO_THREADS
-       if( bdb->bi_lock_detect != DB_LOCK_NORUN ) {
-               /* listener as a separate THREAD */
-               rc = ldap_pvt_thread_create( &bdb->bi_lock_detect_tid,
-                       1, lock_detect_task, bdb );
-       }
-#endif
        return 0;
 }
 
@@ -320,6 +459,9 @@ bdb_db_close( BackendDB *be )
        int rc;
        struct bdb_info *bdb = (struct bdb_info *) be->be_private;
        struct bdb_db_info *db;
+#ifdef SLAP_IDL_CACHE
+       bdb_idl_cache_entry_t *entry, *next_entry;
+#endif
 
        while( bdb->bi_ndatabases-- ) {
                db = bdb->bi_databases[bdb->bi_ndatabases];
@@ -332,6 +474,25 @@ bdb_db_close( BackendDB *be )
        free( bdb->bi_databases );
        bdb_attr_index_destroy( bdb->bi_attrs );
 
+       bdb_cache_release_all (&bdb->bi_cache);
+
+#ifdef SLAP_IDL_CACHE
+       if ( bdb->bi_idl_cache_max_size ) {
+               ldap_pvt_thread_rdwr_wlock ( &bdb->bi_idl_tree_rwlock );
+               avl_free( bdb->bi_idl_tree, NULL );
+               entry = bdb->bi_idl_lru_head;
+               while ( entry != NULL ) {
+                       next_entry = entry->idl_lru_next;
+                       if ( entry->idl )
+                               free( entry->idl );
+                       free( entry->kstr.bv_val );
+                       free( entry );
+                       entry = next_entry;
+               }
+               ldap_pvt_thread_rdwr_wunlock ( &bdb->bi_idl_tree_rwlock );
+       }
+#endif
+
        return 0;
 }
 
@@ -341,37 +502,69 @@ bdb_db_destroy( BackendDB *be )
        int rc;
        struct bdb_info *bdb = (struct bdb_info *) be->be_private;
 
-       /* force a checkpoint */
-       if( bdb->bi_txn ) {
+       /* close db environment */
+       if( bdb->bi_dbenv ) {
+               /* force a checkpoint */
                rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
+                               db_strerror(rc), rc, 0 );
+#else
                        Debug( LDAP_DEBUG_ANY,
                                "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
                                db_strerror(rc), rc, 0 );
+#endif
                }
-       }
 
-       /* close db environment */
-       if( bdb->bi_dbenv ) {
                rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
                bdb->bi_dbenv = NULL;
                if( rc != 0 ) {
+#ifdef NEW_LOGGING
+                       LDAP_LOG( BACK_BDB, ERR, 
+                               "bdb_db_destroy: close failed: %s (%d)\n", 
+                               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 );
+
+       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_cache.c_dntree.bei_kids_mutex );
+       ldap_pvt_thread_mutex_destroy( &bdb->bi_lastid_mutex );
+       ldap_pvt_thread_mutex_destroy( &bdb->bi_database_mutex );
+#ifdef SLAP_IDL_CACHE
+       if ( bdb->bi_idl_cache_max_size ) {
+               ldap_pvt_thread_rdwr_destroy( &bdb->bi_idl_tree_rwlock );
+               ldap_pvt_thread_mutex_destroy( &bdb->bi_idl_tree_lrulock );
+       }
+#endif
+
+       ch_free( bdb );
+       be->be_private = NULL;
+
        return 0;
 }
 
-#ifdef SLAPD_BDB_DYNAMIC
-int back_bdb_LTX_init_module( int argc, char *argv[] ) {
+#if    (defined(SLAPD_BDB_DYNAMIC) && !defined(BDB_HIER)) || \
+       (defined(SLAPD_HDB_DYNAMIC) && defined(BDB_HIER))
+int init_module( int argc, char *argv[] ) {
        BackendInfo bi;
 
        memset( &bi, '\0', sizeof(bi) );
+#ifdef BDB_HIER
+       bi.bi_type = "hdb";
+#else
        bi.bi_type = "bdb";
+#endif
        bi.bi_init = bdb_initialize;
 
        backend_add( &bi );
@@ -385,37 +578,86 @@ bdb_initialize(
 )
 {
        static char *controls[] = {
+               LDAP_CONTROL_ASSERT,
                LDAP_CONTROL_MANAGEDSAIT,
+               LDAP_CONTROL_NOOP,
+#ifdef LDAP_CONTROL_PAGEDRESULTS
+               LDAP_CONTROL_PAGEDRESULTS,
+#endif
+#ifdef LDAP_CONTROL_SUBENTRIES
+               LDAP_CONTROL_SUBENTRIES,
+#endif
+               LDAP_CONTROL_VALUESRETURNFILTER,
                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_initialize: BDB library version mismatch:"
+                               " expected " DB_VERSION_STRING ","
+                               " got %s\n", version, 0, 0 );
+#else
                        Debug( LDAP_DEBUG_ANY,
-                               "bi_back_initialize: version mismatch\n"
-                               "\texpected: " DB_VERSION_STRING "\n"
-                               "\tgot: %s \n", version, 0, 0 );
+                               "bdb_initialize: BDB library version mismatch:"
+                               " expected " DB_VERSION_STRING ","
+                               " got %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
        }
 
-#if 0
-       db_env_set_func_malloc( ch_malloc );
-       db_env_set_func_realloc( ch_realloc );
-       db_env_set_func_free( ch_free );
+       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
 
-       db_env_set_func_yield( ldap_pvt_thread_yield );
+       {
+               static char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 
-       bi->bi_controls = controls;
+               bdb_uuid.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ));
+               bdb_uuid.bv_val = uuidbuf;
+       }
 
        bi->bi_open = 0;
        bi->bi_close = 0;
@@ -436,17 +678,18 @@ bdb_initialize(
        bi->bi_op_modrdn = bdb_modrdn;
        bi->bi_op_search = bdb_search;
 
-#if 0
-       bi->bi_op_unbind = bdb_unbind;
+       bi->bi_op_unbind = 0;
+
        bi->bi_op_abandon = bdb_abandon;
+       bi->bi_op_cancel = bdb_cancel;
 
        bi->bi_extended = bdb_extended;
-       bi->bi_acl_group = bdb_group;
-#endif
-       bi->bi_acl_attribute = bdb_attribute;
-       bi->bi_chk_referrals = bdb_referrals;
 
+       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;
+       bi->bi_entry_get_rw = bdb_entry_get;
 
        /*
         * hooks for slap tools
@@ -459,6 +702,9 @@ bdb_initialize(
        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_tool_dn2id_get = bdb_tool_dn2id_get;
+       bi->bi_tool_id2entry_get = bdb_tool_id2entry_get;
+       bi->bi_tool_entry_modify = bdb_tool_entry_modify;
 
        bi->bi_connection_init = 0;
        bi->bi_connection_destroy = 0;