/* init.c - initialize bdb backend */
/* $OpenLDAP$ */
/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
-
#include <ac/string.h>
-#include <ac/socket.h>
+#include <ac/unistd.h>
+#include <ac/stdlib.h>
-#include "slap.h"
-#include "back-bdb.h"
+#include <lutil.h>
-#ifdef SLAPD_BDB_DYNAMIC
+#include "back-bdb.h"
+#include "external.h"
+
+static 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 }
+};
-int back_bdb_LTX_init_module(int argc, char *argv[]) {
- BackendInfo bi;
+struct berval bdb_uuid = { 0, NULL };
- memset( &bi, '\0', sizeof(bi) );
- bi.bi_type = "bdb";
- bi.bi_init = bdb_back_initialize;
+static int
+bdb_open( BackendInfo *bi )
+{
+ return 0;
+}
- backend_add(&bi);
- return 0;
+#if 0
+static int
+bdb_destroy( BackendInfo *bi )
+{
+ return 0;
}
-#endif /* SLAPD_BDB_DYNAMIC */
+static int
+bdb_close( BackendInfo *bi )
+{
+ /* terminate the underlying database system */
+ return 0;
+}
+#endif
-int
-bdb_back_initialize(
- BackendInfo *bi
-)
+static int
+bdb_db_init( BackendDB *be )
{
- static char *controls[] = {
- LDAP_CONTROL_MANAGEDSAIT,
- NULL
- };
+ struct bdb_info *bdb;
- { /* version check */
- int major, minor, patch;
- char *version = db_version( &major, &minor, &patch );
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_init: Initializing BDB database\n",
+ 0, 0, 0 );
- if( major != DB_VERSION_MAJOR || minor != DB_VERSION_MINOR ||
- patch < DB_VERSION_PATCH )
- {
- Debug( LDAP_DEBUG_ANY,
- "bdb_back_initialize: version mismatch\n"
- "\texpected: " DB_VERSION_STRING "\n"
- "\tgot: %s \n", version, 0, 0 );
- }
+ /* indicate system schema supported */
+ be->be_flags |=
+#ifdef BDB_SUBENTRIES
+ SLAP_BFLAG_SUBENTRIES |
+#endif
+#ifdef BDB_ALIASES
+ SLAP_BFLAG_ALIASES |
+#endif
+ SLAP_BFLAG_REFERRALS;
- Debug( LDAP_DEBUG_ANY, "bdb_back_initialize: %s\n",
- version, 0, 0 );
- }
+ /* allocate backend-database-specific stuff */
+ bdb = (struct bdb_info *) ch_calloc( 1, sizeof(struct bdb_info) );
-#if 0
- bi->bi_controls = controls;
+ /* DBEnv parameters */
+ bdb->bi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
+ bdb->bi_dbenv_xflags = 0;
+ bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
- bi->bi_open = bdb_back_open;
- bi->bi_config = 0;
- bi->bi_close = bdb_back_close;
- bi->bi_destroy = bdb_back_destroy;
-
- bi->bi_db_init = bdb_back_db_init;
- bi->bi_db_config = bdb_back_db_config;
- bi->bi_db_open = bdb_back_db_open;
- bi->bi_db_close = bdb_back_db_close;
- bi->bi_db_destroy = bdb_back_db_destroy;
-
- bi->bi_op_bind = bdb_back_bind;
- bi->bi_op_unbind = bdb_back_unbind;
- bi->bi_op_search = bdb_back_search;
- bi->bi_op_compare = bdb_back_compare;
- bi->bi_op_modify = bdb_back_modify;
- bi->bi_op_modrdn = bdb_back_modrdn;
- bi->bi_op_add = bdb_back_add;
- bi->bi_op_delete = bdb_back_delete;
- bi->bi_op_abandon = bdb_back_abandon;
-
- bi->bi_extended = bdb_back_extended;
-
- bi->bi_entry_release_rw = bdb_back_entry_release_rw;
- bi->bi_acl_group = bdb_back_group;
- bi->bi_acl_attribute = bdb_back_attribute;
- bi->bi_chk_referrals = bdb_back_referrals;
+ bdb->bi_cache.c_maxsize = DEFAULT_CACHE_SIZE;
- /*
- * 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_first;
- 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 = bdb_tool_sync;
+#ifndef NO_THREADS
+#if 0
+ bdb->bi_lock_detect = DB_LOCK_NORUN;
+#else
+ bdb->bi_lock_detect = DB_LOCK_DEFAULT;
+#endif
+#endif
- bi->bi_connection_init = 0;
- bi->bi_connection_destroy = 0;
+ ldap_pvt_thread_mutex_init( &bdb->bi_database_mutex );
+ ldap_pvt_thread_mutex_init( &bdb->bi_lastid_mutex );
+ ldap_pvt_thread_mutex_init( &bdb->bi_cache.c_mutex );
+#ifdef BDB_HIER
+ ldap_pvt_thread_rdwr_init( &bdb->bi_tree_rdwr );
#endif
+ be->be_private = bdb;
return 0;
}
-int
-bdb_back_destroy(
- BackendInfo *bi
-)
+#if 0 /* ifndef NO_THREADS */
+static void *lock_detect_task( void *arg )
{
- return 0;
-}
+ struct bdb_info *bdb = (struct bdb_info *) arg;
-int
-bdb_back_open(
- BackendInfo *bi
-)
-{
- /* initialize the underlying database system */
- return 0;
-}
+ while( bdb->bi_dbenv != NULL ) {
+ int rc;
+ int aborted;
+ sleep( bdb->bi_lock_detect_seconds );
-int
-bdb_back_close(
- BackendInfo *bi
-)
-{
- /* terminate the underlying database system */
- return 0;
+ rc = LOCK_DETECT( bdb->bi_dbenv, 0,
+ bdb->bi_lock_detect, &aborted );
+
+ if( rc != 0 ) {
+ break;
+ }
+
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_lock_detect: aborted %d locks\n",
+ aborted, 0, 0 );
+ }
+
+ return NULL;
}
+#endif
int
-bdb_back_db_init(
- Backend *be
+bdb_bt_compare(
+ DB *db,
+ const DBT *usrkey,
+ const DBT *curkey
)
{
- struct bdb_dbinfo *bdi;
-
- /* allocate backend-database-specific stuff */
- bdi = (struct bdb_dbinfo *) ch_calloc( 1, sizeof(struct bdb_dbinfo) );
+ unsigned char *u, *c;
+ int i;
- /* DBEnv parameters */
- bdi->bdi_dbenv_home = ch_strdup( DEFAULT_DBENV_HOME );
- bdi->bdi_dbenv_xflags = 0;
- bdi->bdi_dbenv_mode = DEFAULT_DBENV_MODE;
-
- /* default database directories */
- bdi->bdi_db_directory = ch_strdup( DEFAULT_DB_DIRECTORY );
+ u = usrkey->data;
+ c = curkey->data;
- be->be_private = bdi;
+#ifdef WORDS_BIGENDIAN
+ for( i = 0; i < sizeof(ID); i++)
+#else
+ for( i = sizeof(ID)-1; i >= 0; i--)
+#endif
+ {
+ if( u[i] - c[i] )
+ return u[i] - c[i];
+ }
return 0;
}
-int
-bdb_back_db_open(
- BackendDB *be
-)
+static int
+bdb_db_open( BackendDB *be )
{
- int rc;
- struct bdb_dbinfo *bdi = (struct bdb_dbinfo *) be->be_private;
+ int rc, i;
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
u_int32_t flags;
+ Debug( LDAP_DEBUG_ARGS,
+ "bdb_db_open: %s\n",
+ be->be_suffix[0]->bv_val, 0, 0 );
+
/* we should check existance of dbenv_home and db_directory */
- rc = db_env_create( &bdi->bdi_dbenv, 0 );
+ rc = db_env_create( &bdb->bi_dbenv, 0 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bdb_back_db_open: db_env_create failed: %s (%d)\n",
+ "bdb_db_open: db_env_create failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
return rc;
}
- flags = DB_INIT_LOCK | DB_INIT_TXN |
- DB_PRIVATE | DB_RECOVER | DB_THREAD;
+ flags = DB_INIT_MPOOL | DB_THREAD | DB_CREATE
+ | DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_TXN | DB_RECOVER;
+
+ bdb->bi_dbenv->set_errpfx( bdb->bi_dbenv, be->be_suffix[0]->bv_val );
+ bdb->bi_dbenv->set_errcall( bdb->bi_dbenv, bdb_errcall );
+#ifndef NO_THREADS
+ bdb->bi_dbenv->set_lk_detect( bdb->bi_dbenv, bdb->bi_lock_detect );
+#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 );
+
+ rc = bdb->bi_dbenv->set_tmp_dir( bdb->bi_dbenv, dir );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: set_tmp_dir(%s) failed: %s (%d)\n",
+ dir, db_strerror(rc), rc );
+ return rc;
+ }
- rc = bdi->bdi_dbenv->open( bdi->bdi_dbenv,
- bdi->bdi_dbenv_home,
- flags | bdi->bdi_dbenv_xflags,
- bdi->bdi_dbenv_mode );
+ strcat( &dir[len], BDB_LG_SUBDIR );
+
+ rc = bdb->bi_dbenv->set_lg_dir( bdb->bi_dbenv, dir );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: set_lg_dir(%s) failed: %s (%d)\n",
+ dir, db_strerror(rc), rc );
+ return rc;
+ }
+ strcat( &dir[len], BDB_DATA_SUBDIR );
+
+ rc = bdb->bi_dbenv->set_data_dir( bdb->bi_dbenv, dir );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: set_data_dir(%s) failed: %s (%d)\n",
+ dir, db_strerror(rc), rc );
+ return rc;
+ }
+ }
+#endif
+
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_db_open: dbenv_open(%s)\n",
+ bdb->bi_dbenv_home, 0, 0);
+
+ rc = bdb->bi_dbenv->open( bdb->bi_dbenv,
+ bdb->bi_dbenv_home,
+ flags,
+ bdb->bi_dbenv_mode );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
- "bdb_back_db_open: db_open failed: %s (%d)\n",
+ "bdb_db_open: dbenv_open failed: %s (%d)\n",
db_strerror(rc), rc, 0 );
return rc;
}
+ if( bdb->bi_dbenv_xflags != 0 ) {
+ rc = bdb->bi_dbenv->set_flags( bdb->bi_dbenv,
+ bdb->bi_dbenv_xflags, 1);
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: dbenv_set_flags failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ return rc;
+ }
+ }
+
+ flags = DB_THREAD | DB_CREATE | bdb->bi_db_opflags;
+
+ bdb->bi_databases = (struct bdb_db_info **) ch_malloc(
+ BDB_INDICES * sizeof(struct bdb_db_info *) );
+
+ /* open (and create) main database */
+ for( i = 0; bdbi_databases[i].name; i++ ) {
+ struct bdb_db_info *db;
+
+ db = (struct bdb_db_info *) ch_calloc(1, sizeof(struct bdb_db_info));
+
+ rc = db_create( &db->bdi_db, bdb->bi_dbenv, 0 );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: db_create(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ return rc;
+ }
+
+ if( i == BDB_ID2ENTRY ) {
+ rc = db->bdi_db->set_bt_compare( db->bdi_db,
+ bdb_bt_compare );
+ rc = db->bdi_db->set_pagesize( db->bdi_db,
+ BDB_ID2ENTRY_PAGESIZE );
+ } 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 );
+ rc = db->bdi_db->set_dup_compare( db->bdi_db,
+ bdb_bt_compare );
+#endif
+ rc = db->bdi_db->set_pagesize( db->bdi_db,
+ BDB_PAGESIZE );
+ }
+
+ rc = db->bdi_db->open( db->bdi_db,
+ bdbi_databases[i].file,
+ /* bdbi_databases[i].name, */ NULL,
+ bdbi_databases[i].type,
+ bdbi_databases[i].flags | flags,
+ bdb->bi_dbenv_mode );
+
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: db_open(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ return rc;
+ }
+
+ db->bdi_name = bdbi_databases[i].name;
+ bdb->bi_databases[i] = db;
+ }
+
+ bdb->bi_databases[i] = NULL;
+ bdb->bi_ndatabases = i;
+
+ /* get nextid */
+ rc = bdb_last_id( be, NULL );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_open: last_id(%s) failed: %s (%d)\n",
+ bdb->bi_dbenv_home, db_strerror(rc), rc );
+ return rc;
+ }
+
+ /* <insert> open (and create) index databases */
+#ifdef BDB_HIER
+ rc = bdb_build_tree( be );
+#endif
+
+#if 0 /* 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;
}
+static int
+bdb_db_close( BackendDB *be )
+{
+ int rc;
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+ struct bdb_db_info *db;
+
+ while( bdb->bi_ndatabases-- ) {
+ db = bdb->bi_databases[bdb->bi_ndatabases];
+ rc = db->bdi_db->close( db->bdi_db, 0 );
+ /* Lower numbered names are not strdup'd */
+ if( bdb->bi_ndatabases >= BDB_NDB )
+ free( db->bdi_name );
+ free( db );
+ }
+ free( bdb->bi_databases );
+ bdb_attr_index_destroy( bdb->bi_attrs );
+
+ bdb_cache_release_all (&bdb->bi_cache);
+
+ return 0;
+}
+
+static int
+bdb_db_destroy( BackendDB *be )
+{
+ int rc;
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+
+ /* close db environment */
+ if( bdb->bi_dbenv ) {
+ /* force a checkpoint */
+ rc = TXN_CHECKPOINT( bdb->bi_dbenv, 0, 0, DB_FORCE );
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_destroy: txn_checkpoint failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ }
+
+ bdb_cache_release_all (&bdb->bi_cache);
+
+ rc = bdb->bi_dbenv->close( bdb->bi_dbenv, 0 );
+ bdb->bi_dbenv = NULL;
+ if( rc != 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_db_destroy: close failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ return rc;
+ }
+ }
+
+ 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_back_db_destroy(
- BackendDB *be
+bdb_initialize(
+ BackendInfo *bi
)
{
- int rc;
- struct bdb_dbinfo *bdi = (struct bdb_dbinfo *) be->be_private;
+ static char *controls[] = {
+ LDAP_CONTROL_MANAGEDSAIT,
+ LDAP_CONTROL_SUBENTRIES,
+ LDAP_CONTROL_NOOP,
+ NULL
+ };
- rc = bdi->bdi_dbenv->close( bdi->bdi_dbenv, 0 );
- bdi->bdi_dbenv = NULL;
+ bi->bi_controls = controls;
- if( rc != 0 ) {
- Debug( LDAP_DEBUG_ANY,
- "bdb_back_db_open: db_open failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
- return rc;
+ /* initialize the underlying database system */
+ Debug( LDAP_DEBUG_TRACE, "bdb_open: initialize BDB backend\n",
+ 0, 0, 0 );
+
+ { /* version check */
+ int major, minor, patch;
+ char *version = db_version( &major, &minor, &patch );
+
+ if( major != DB_VERSION_MAJOR ||
+ minor != DB_VERSION_MINOR ||
+ patch < DB_VERSION_PATCH )
+ {
+ Debug( LDAP_DEBUG_ANY,
+ "bdb_open: version mismatch\n"
+ "\texpected: " DB_VERSION_STRING "\n"
+ "\tgot: %s \n", version, 0, 0 );
+ }
+
+ Debug( LDAP_DEBUG_ANY, "bdb_open: %s\n",
+ version, 0, 0 );
+ }
+
+#if 0
+ db_env_set_func_malloc( ch_malloc );
+ db_env_set_func_realloc( ch_realloc );
+ db_env_set_func_free( ch_free );
+#endif
+
+ db_env_set_func_yield( ldap_pvt_thread_yield );
+
+ {
+ static char uuidbuf[40];
+
+ 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;
+ bi->bi_op_abandon = 0;
+
+ bi->bi_extended = bdb_extended;
+
+#if 0
+ /*
+ * 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_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;
}
projects / openldap / blobdiff