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openldap/servers/slapd/back-mdb/init.c

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Import back-mdb
2011-09-02 07:52:53 +08:00
/* init.c - initialize mdb backend */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
Happy New Year!
2012-01-01 23:07:45 +08:00
* Copyright 2000-2012 The OpenLDAP Foundation.
Import back-mdb
2011-09-02 07:52:53 +08:00
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/unistd.h>
#include <ac/stdlib.h>
#include <ac/errno.h>
#include <sys/stat.h>
#include "back-mdb.h"
#include <lutil.h>
#include <ldap_rq.h>
#include "config.h"
static const struct berval mdmi_databases[] = {
BER_BVC("ad2i"),
BER_BVC("dn2i"),
BER_BVC("id2e"),
BER_BVNULL
};
Tentative speedup - use plain ints for entry_encode/decode Keep entries word-aligned. Yields ~10% speedup, but also 10% more space used. May revert this if the space cost is unacceptable.
2011-09-14 06:19:04 +08:00
static int
mdb_id_compare( const MDB_val *a, const MDB_val *b )
{
return *(ID *)a->mv_data < *(ID *)b->mv_data ? -1 : *(ID *)a->mv_data > *(ID *)b->mv_data;
}
Import back-mdb
2011-09-02 07:52:53 +08:00
static int
mdb_db_init( BackendDB *be, ConfigReply *cr )
{
struct mdb_info *mdb;
int rc;
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_db_init) ": Initializing mdb database\n",
0, 0, 0 );
/* allocate backend-database-specific stuff */
mdb = (struct mdb_info *) ch_calloc( 1, sizeof(struct mdb_info) );
/* DBEnv parameters */
mdb->mi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
mdb->mi_dbenv_flags = 0;
mdb->mi_dbenv_mode = SLAPD_DEFAULT_DB_MODE;
mdb->mi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
mdb->mi_search_stack = NULL;
mdb->mi_mapsize = DEFAULT_MAPSIZE;
be->be_private = mdb;
be->be_cf_ocs = be->bd_info->bi_cf_ocs;
#ifndef MDB_MULTIPLE_SUFFIXES
SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_ONE_SUFFIX;
#endif
rc = mdb_monitor_db_init( be );
return rc;
}
static int
mdb_db_close( BackendDB *be, ConfigReply *cr );
static int
mdb_db_open( BackendDB *be, ConfigReply *cr )
{
int rc, i;
struct mdb_info *mdb = (struct mdb_info *) be->be_private;
struct stat stat1;
Fix u_intX -> uintX
2011-11-09 11:06:46 +08:00
uint32_t flags;
Import back-mdb
2011-09-02 07:52:53 +08:00
char *dbhome;
MDB_txn *txn;
if ( be->be_suffix == NULL ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": need suffix.\n",
1, 0, 0 );
return -1;
}
Debug( LDAP_DEBUG_ARGS,
LDAP_XSTRING(mdb_db_open) ": \"%s\"\n",
be->be_suffix[0].bv_val, 0, 0 );
/* Check existence of dbenv_home. Any error means trouble */
rc = stat( mdb->mi_dbenv_home, &stat1 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
"cannot access database directory \"%s\" (%d).\n",
be->be_suffix[0].bv_val, mdb->mi_dbenv_home, errno );
return -1;
}
/* mdb is always clean */
be->be_flags |= SLAP_DBFLAG_CLEAN;
rc = mdb_env_create( &mdb->mi_dbenv );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
"mdb_env_create failed: %s (%d).\n",
be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
goto fail;
}
if ( mdb->mi_readers ) {
rc = mdb_env_set_maxreaders( mdb->mi_dbenv, mdb->mi_readers );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
"mdb_env_set_maxreaders failed: %s (%d).\n",
be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
goto fail;
}
}
rc = mdb_env_set_mapsize( mdb->mi_dbenv, mdb->mi_mapsize );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
"mdb_env_set_mapsize failed: %s (%d).\n",
be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
goto fail;
}
rc = mdb_env_set_maxdbs( mdb->mi_dbenv, MDB_INDICES );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
"mdb_env_set_maxdbs failed: %s (%d).\n",
be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
goto fail;
}
#ifdef HAVE_EBCDIC
strcpy( path, mdb->mi_dbenv_home );
__atoe( path );
dbhome = path;
#else
dbhome = mdb->mi_dbenv_home;
#endif
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_db_open) ": database \"%s\": "
"dbenv_open(%s).\n",
be->be_suffix[0].bv_val, mdb->mi_dbenv_home, 0);
flags = mdb->mi_dbenv_flags;
if ( slapMode & SLAP_TOOL_QUICK )
Add envflags for MDB config allows setting writemap and some other useful flags
2012-09-25 19:31:37 +08:00
flags |= MDB_NOSYNC|MDB_WRITEMAP;
Import back-mdb
2011-09-02 07:52:53 +08:00
if ( slapMode & SLAP_TOOL_READONLY)
flags |= MDB_RDONLY;
rc = mdb_env_open( mdb->mi_dbenv, dbhome,
flags, mdb->mi_dbenv_mode );
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\" cannot be opened, err %d. "
"Restore from backup!\n",
be->be_suffix[0].bv_val, rc, 0 );
goto fail;
}
ITS#7391 more for ab04c50a32275e216b82edaeeed50208cf49336b
2012-09-15 03:53:47 +08:00
rc = mdb_txn_begin( mdb->mi_dbenv, NULL, flags & MDB_RDONLY, &txn );
Import back-mdb
2011-09-02 07:52:53 +08:00
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": database \"%s\" cannot be opened, err %d. "
"Restore from backup!\n",
be->be_suffix[0].bv_val, rc, 0 );
goto fail;
}
/* open (and create) main databases */
for( i = 0; mdmi_databases[i].bv_val; i++ ) {
flags = MDB_INTEGERKEY;
if( i == MDB_ID2ENTRY ) {
if ( !(slapMode & (SLAP_TOOL_READMAIN|SLAP_TOOL_READONLY) ))
flags |= MDB_CREATE;
} else {
if ( i == MDB_DN2ID )
flags |= MDB_DUPSORT;
if ( !(slapMode & SLAP_TOOL_READONLY) )
flags |= MDB_CREATE;
}
rc = mdb_open( txn,
mdmi_databases[i].bv_val,
flags,
&mdb->mi_dbis[i] );
if ( rc != 0 ) {
snprintf( cr->msg, sizeof(cr->msg), "database \"%s\": "
"mdb_open(%s/%s) failed: %s (%d).",
be->be_suffix[0].bv_val,
mdb->mi_dbenv_home, mdmi_databases[i].bv_val,
mdb_strerror(rc), rc );
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_db_open) ": %s\n",
cr->msg, 0, 0 );
goto fail;
}
Tentative speedup - use plain ints for entry_encode/decode Keep entries word-aligned. Yields ~10% speedup, but also 10% more space used. May revert this if the space cost is unacceptable.
2011-09-14 06:19:04 +08:00
if ( i == MDB_ID2ENTRY )
mdb_set_compare( txn, mdb->mi_dbis[i], mdb_id_compare );
else if ( i == MDB_DN2ID )
Import back-mdb
2011-09-02 07:52:53 +08:00
mdb_set_dupsort( txn, mdb->mi_dbis[i], mdb_dup_compare );
}
Use AD-indexes
2011-09-06 10:49:35 +08:00
rc = mdb_ad_read( mdb, txn );
if ( rc ) {
mdb_txn_abort( txn );
goto fail;
}
Import back-mdb
2011-09-02 07:52:53 +08:00
rc = mdb_attr_dbs_open( be, txn, cr );
if ( rc ) {
mdb_txn_abort( txn );
goto fail;
}
rc = mdb_txn_commit(txn);
if ( rc != 0 ) {
goto fail;
}
/* monitor setup */
rc = mdb_monitor_db_open( be );
if ( rc != 0 ) {
goto fail;
}
mdb->mi_flags |= MDB_IS_OPEN;
return 0;
fail:
mdb_db_close( be, NULL );
return rc;
}
static int
mdb_db_close( BackendDB *be, ConfigReply *cr )
{
int rc;
struct mdb_info *mdb = (struct mdb_info *) be->be_private;
/* monitor handling */
(void)mdb_monitor_db_close( be );
mdb->mi_flags &= ~MDB_IS_OPEN;
if( mdb->mi_dbenv ) {
mdb_reader_flush( mdb->mi_dbenv );
}
if ( mdb->mi_dbenv ) {
if ( mdb->mi_dbis[0] ) {
int i;
New mdb_close() signature
2011-09-19 04:25:38 +08:00
mdb_attr_dbs_close( mdb );
Import back-mdb
2011-09-02 07:52:53 +08:00
for ( i=0; i<MDB_NDB; i++ )
New mdb_close() signature
2011-09-19 04:25:38 +08:00
mdb_close( mdb->mi_dbenv, mdb->mi_dbis[i] );
Import back-mdb
2011-09-02 07:52:53 +08:00
mdb_db_close() should not force env_sync in quick mode
2011-09-13 16:28:37 +08:00
/* force a sync, but not if we were ReadOnly,
* and not in Quick mode.
*/
if (!(slapMode & (SLAP_TOOL_QUICK|SLAP_TOOL_READONLY))) {
rc = mdb_env_sync( mdb->mi_dbenv, 1 );
if( rc != 0 ) {
Debug( LDAP_DEBUG_ANY,
"mdb_db_close: database \"%s\": "
"mdb_env_sync failed: %s (%d).\n",
be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
}
Import back-mdb
2011-09-02 07:52:53 +08:00
}
}
mdb_env_close( mdb->mi_dbenv );
mdb->mi_dbenv = NULL;
}
return 0;
}
static int
mdb_db_destroy( BackendDB *be, ConfigReply *cr )
{
struct mdb_info *mdb = (struct mdb_info *) be->be_private;
/* stop and remove checkpoint task */
if ( mdb->mi_txn_cp_task ) {
struct re_s *re = mdb->mi_txn_cp_task;
mdb->mi_txn_cp_task = NULL;
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
if ( ldap_pvt_runqueue_isrunning( &slapd_rq, re ) )
ldap_pvt_runqueue_stoptask( &slapd_rq, re );
ldap_pvt_runqueue_remove( &slapd_rq, re );
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
}
/* monitor handling */
(void)mdb_monitor_db_destroy( be );
if( mdb->mi_dbenv_home ) ch_free( mdb->mi_dbenv_home );
mdb_attr_index_destroy( mdb );
ch_free( mdb );
be->be_private = NULL;
return 0;
}
int
mdb_back_initialize(
BackendInfo *bi )
{
int rc;
static char *controls[] = {
LDAP_CONTROL_ASSERT,
LDAP_CONTROL_MANAGEDSAIT,
LDAP_CONTROL_NOOP,
LDAP_CONTROL_PAGEDRESULTS,
LDAP_CONTROL_PRE_READ,
LDAP_CONTROL_POST_READ,
LDAP_CONTROL_SUBENTRIES,
LDAP_CONTROL_X_PERMISSIVE_MODIFY,
#ifdef LDAP_X_TXN
LDAP_CONTROL_X_TXN_SPEC,
#endif
NULL
};
/* initialize the underlying database system */
Debug( LDAP_DEBUG_TRACE,
LDAP_XSTRING(mdb_back_initialize) ": initialize "
MDB_UCTYPE " backend\n", 0, 0, 0 );
bi->bi_flags |=
SLAP_BFLAG_INCREMENT |
SLAP_BFLAG_SUBENTRIES |
SLAP_BFLAG_ALIASES |
SLAP_BFLAG_REFERRALS;
bi->bi_controls = controls;
{ /* version check */
int major, minor, patch, ver;
char *version = mdb_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 MDB library are already
* in EBCDIC; we have to go back and forth...
*/
strcpy( v2, version );
__etoa( v2 );
version = v2;
#endif
ver = (major << 24) | (minor << 16) | patch;
if( ver != MDB_VERSION_FULL ) {
/* fail if a versions don't match */
Debug( LDAP_DEBUG_ANY,
LDAP_XSTRING(mdb_back_initialize) ": "
"MDB library version mismatch:"
" expected " MDB_VERSION_STRING ","
" got %s\n", version, 0, 0 );
return -1;
}
Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_back_initialize)
": %s\n", version, 0, 0 );
}
bi->bi_open = 0;
bi->bi_close = 0;
bi->bi_config = 0;
bi->bi_destroy = 0;
bi->bi_db_init = mdb_db_init;
bi->bi_db_config = config_generic_wrapper;
bi->bi_db_open = mdb_db_open;
bi->bi_db_close = mdb_db_close;
bi->bi_db_destroy = mdb_db_destroy;
bi->bi_op_add = mdb_add;
bi->bi_op_bind = mdb_bind;
bi->bi_op_compare = mdb_compare;
bi->bi_op_delete = mdb_delete;
bi->bi_op_modify = mdb_modify;
bi->bi_op_modrdn = mdb_modrdn;
bi->bi_op_search = mdb_search;
bi->bi_op_unbind = 0;
bi->bi_extended = mdb_extended;
Drop referral.c
2011-09-09 13:02:59 +08:00
bi->bi_chk_referrals = 0;
Import back-mdb
2011-09-02 07:52:53 +08:00
bi->bi_operational = mdb_operational;
bi->bi_has_subordinates = mdb_hasSubordinates;
bi->bi_entry_release_rw = mdb_entry_release;
bi->bi_entry_get_rw = mdb_entry_get;
/*
* hooks for slap tools
*/
bi->bi_tool_entry_open = mdb_tool_entry_open;
bi->bi_tool_entry_close = mdb_tool_entry_close;
bi->bi_tool_entry_first = backend_tool_entry_first;
bi->bi_tool_entry_first_x = mdb_tool_entry_first_x;
bi->bi_tool_entry_next = mdb_tool_entry_next;
bi->bi_tool_entry_get = mdb_tool_entry_get;
bi->bi_tool_entry_put = mdb_tool_entry_put;
bi->bi_tool_entry_reindex = mdb_tool_entry_reindex;
bi->bi_tool_sync = 0;
bi->bi_tool_dn2id_get = mdb_tool_dn2id_get;
bi->bi_tool_entry_modify = mdb_tool_entry_modify;
bi->bi_connection_init = 0;
bi->bi_connection_destroy = 0;
rc = mdb_back_init_cf( bi );
return rc;
}
#if (SLAPD_MDB == SLAPD_MOD_DYNAMIC)
SLAP_BACKEND_INIT_MODULE( mdb )
#endif /* SLAPD_MDB == SLAPD_MOD_DYNAMIC */
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