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openldap/servers/slapd/back-bdb/config.c
Howard Chu f2de258e3d ITS#5442 slapd_rq mutexes must always be used
2008-04-02 03:08:06 +00:00

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/* config.c - bdb backend configuration file routine */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2000-2008 The OpenLDAP Foundation.
* 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/ctype.h>
#include <ac/string.h>
#include <ac/errno.h>
#include "back-bdb.h"
#include "config.h"
#include "lutil.h"
#include "ldap_rq.h"
#ifdef DB_DIRTY_READ
# define SLAP_BDB_ALLOW_DIRTY_READ
#endif
#define bdb_cf_gen BDB_SYMBOL(cf_gen)
#define bdb_cf_cleanup BDB_SYMBOL(cf_cleanup)
#define bdb_checkpoint BDB_SYMBOL(checkpoint)
#define bdb_online_index BDB_SYMBOL(online_index)
static ConfigDriver bdb_cf_gen;
enum {
BDB_CHKPT = 1,
BDB_CONFIG,
BDB_CRYPTFILE,
BDB_CRYPTKEY,
BDB_DIRECTORY,
BDB_NOSYNC,
BDB_DIRTYR,
BDB_INDEX,
BDB_LOCKD,
BDB_SSTACK
};
static ConfigTable bdbcfg[] = {
{ "directory", "dir", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_DIRECTORY,
bdb_cf_gen, "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
"DESC 'Directory for database content' "
"EQUALITY caseIgnoreMatch "
"SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
{ "cachefree", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_cache.c_minfree),
"( OLcfgDbAt:1.11 NAME 'olcDbCacheFree' "
"DESC 'Number of extra entries to free when max is reached' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ "cachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_cache.c_maxsize),
"( OLcfgDbAt:1.1 NAME 'olcDbCacheSize' "
"DESC 'Entry cache size in entries' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ "checkpoint", "kbyte> <min", 3, 3, 0, ARG_MAGIC|BDB_CHKPT,
bdb_cf_gen, "( OLcfgDbAt:1.2 NAME 'olcDbCheckpoint' "
"DESC 'Database checkpoint interval in kbytes and minutes' "
"SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
{ "cryptfile", "file", 2, 2, 0, ARG_STRING|ARG_MAGIC|BDB_CRYPTFILE,
bdb_cf_gen, "( OLcfgDbAt:1.13 NAME 'olcDbCryptFile' "
"DESC 'Pathname of file containing the DB encryption key' "
"SYNTAX OMsDirectoryString SINGLE-VALUE )",NULL, NULL },
{ "cryptkey", "key", 2, 2, 0, ARG_BERVAL|ARG_MAGIC|BDB_CRYPTKEY,
bdb_cf_gen, "( OLcfgDbAt:1.14 NAME 'olcDbCryptKey' "
"DESC 'DB encryption key' "
"SYNTAX OMsOctetString SINGLE-VALUE )",NULL, NULL },
{ "dbconfig", "DB_CONFIG setting", 1, 0, 0, ARG_MAGIC|BDB_CONFIG,
bdb_cf_gen, "( OLcfgDbAt:1.3 NAME 'olcDbConfig' "
"DESC 'BerkeleyDB DB_CONFIG configuration directives' "
"SYNTAX OMsIA5String X-ORDERED 'VALUES' )", NULL, NULL },
{ "dbnosync", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_NOSYNC,
bdb_cf_gen, "( OLcfgDbAt:1.4 NAME 'olcDbNoSync' "
"DESC 'Disable synchronous database writes' "
"SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
{ "dirtyread", NULL, 1, 2, 0,
#ifdef SLAP_BDB_ALLOW_DIRTY_READ
ARG_ON_OFF|ARG_MAGIC|BDB_DIRTYR, bdb_cf_gen,
#else
ARG_IGNORED, NULL,
#endif
"( OLcfgDbAt:1.5 NAME 'olcDbDirtyRead' "
"DESC 'Allow reads of uncommitted data' "
"SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
{ "dncachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_cache.c_eimax),
"( OLcfgDbAt:1.12 NAME 'olcDbDNcacheSize' "
"DESC 'DN cache size' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ "idlcachesize", "size", 2, 2, 0, ARG_UINT|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_idl_cache_max_size),
"( OLcfgDbAt:1.6 NAME 'olcDbIDLcacheSize' "
"DESC 'IDL cache size in IDLs' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ "index", "attr> <[pres,eq,approx,sub]", 2, 3, 0, ARG_MAGIC|BDB_INDEX,
bdb_cf_gen, "( OLcfgDbAt:0.2 NAME 'olcDbIndex' "
"DESC 'Attribute index parameters' "
"EQUALITY caseIgnoreMatch "
"SYNTAX OMsDirectoryString )", NULL, NULL },
{ "linearindex", NULL, 1, 2, 0, ARG_ON_OFF|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_linear_index),
"( OLcfgDbAt:1.7 NAME 'olcDbLinearIndex' "
"DESC 'Index attributes one at a time' "
"SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
{ "lockdetect", "policy", 2, 2, 0, ARG_MAGIC|BDB_LOCKD,
bdb_cf_gen, "( OLcfgDbAt:1.8 NAME 'olcDbLockDetect' "
"DESC 'Deadlock detection algorithm' "
"SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
{ "mode", "mode", 2, 2, 0, ARG_INT|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_dbenv_mode),
"( OLcfgDbAt:0.3 NAME 'olcDbMode' "
"DESC 'Unix permissions of database files' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ "searchstack", "depth", 2, 2, 0, ARG_INT|ARG_MAGIC|BDB_SSTACK,
bdb_cf_gen, "( OLcfgDbAt:1.9 NAME 'olcDbSearchStack' "
"DESC 'Depth of search stack in IDLs' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ "shm_key", "key", 2, 2, 0, ARG_LONG|ARG_OFFSET,
(void *)offsetof(struct bdb_info, bi_shm_key),
"( OLcfgDbAt:1.10 NAME 'olcDbShmKey' "
"DESC 'Key for shared memory region' "
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
{ NULL, NULL, 0, 0, 0, ARG_IGNORED,
NULL, NULL, NULL, NULL }
};
static ConfigOCs bdbocs[] = {
{
#ifdef BDB_HIER
"( OLcfgDbOc:1.2 "
"NAME 'olcHdbConfig' "
"DESC 'HDB backend configuration' "
#else
"( OLcfgDbOc:1.1 "
"NAME 'olcBdbConfig' "
"DESC 'BDB backend configuration' "
#endif
"SUP olcDatabaseConfig "
"MUST olcDbDirectory "
"MAY ( olcDbCacheSize $ olcDbCheckpoint $ olcDbConfig $ "
"olcDbCryptFile $ olcDbCryptKey $ "
"olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ "
"olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ "
"olcDbMode $ olcDbSearchStack $ olcDbShmKey $ "
"olcDbCacheFree $ olcDbDNcacheSize ) )",
Cft_Database, bdbcfg },
{ NULL, 0, NULL }
};
static slap_verbmasks bdb_lockd[] = {
{ BER_BVC("default"), DB_LOCK_DEFAULT },
{ BER_BVC("oldest"), DB_LOCK_OLDEST },
{ BER_BVC("random"), DB_LOCK_RANDOM },
{ BER_BVC("youngest"), DB_LOCK_YOUNGEST },
{ BER_BVC("fewest"), DB_LOCK_MINLOCKS },
{ BER_BVNULL, 0 }
};
/* perform periodic checkpoints */
static void *
bdb_checkpoint( void *ctx, void *arg )
{
struct re_s *rtask = arg;
struct bdb_info *bdb = rtask->arg;
TXN_CHECKPOINT( bdb->bi_dbenv, bdb->bi_txn_cp_kbyte,
bdb->bi_txn_cp_min, 0 );
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
return NULL;
}
/* reindex entries on the fly */
static void *
bdb_online_index( void *ctx, void *arg )
{
struct re_s *rtask = arg;
BackendDB *be = rtask->arg;
struct bdb_info *bdb = be->be_private;
Connection conn = {0};
OperationBuffer opbuf;
Operation *op;
DBC *curs;
DBT key, data;
DB_TXN *txn;
DB_LOCK lock;
BDB_LOCKER locker;
ID id, nid;
EntryInfo *ei;
int rc, getnext = 1;
int i;
connection_fake_init( &conn, &opbuf, ctx );
op = &opbuf.ob_op;
op->o_bd = be;
DBTzero( &key );
DBTzero( &data );
id = 1;
key.data = &nid;
key.size = key.ulen = sizeof(ID);
key.flags = DB_DBT_USERMEM;
data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
data.dlen = data.ulen = 0;
while ( 1 ) {
if ( slapd_shutdown )
break;
rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &txn, bdb->bi_db_opflags );
if ( rc )
break;
locker = TXN_ID( txn );
if ( getnext ) {
getnext = 0;
BDB_ID2DISK( id, &nid );
rc = bdb->bi_id2entry->bdi_db->cursor(
bdb->bi_id2entry->bdi_db, txn, &curs, bdb->bi_db_opflags );
if ( rc ) {
TXN_ABORT( txn );
break;
}
rc = curs->c_get( curs, &key, &data, DB_SET_RANGE );
curs->c_close( curs );
if ( rc ) {
TXN_ABORT( txn );
if ( rc == DB_NOTFOUND )
rc = 0;
if ( rc == DB_LOCK_DEADLOCK ) {
ldap_pvt_thread_yield();
continue;
}
break;
}
BDB_DISK2ID( &nid, &id );
}
ei = NULL;
rc = bdb_cache_find_id( op, txn, id, &ei, 0, locker, &lock );
if ( rc ) {
TXN_ABORT( txn );
if ( rc == DB_LOCK_DEADLOCK ) {
ldap_pvt_thread_yield();
continue;
}
if ( rc == DB_NOTFOUND ) {
id++;
getnext = 1;
continue;
}
break;
}
if ( ei->bei_e ) {
rc = bdb_index_entry( op, txn, BDB_INDEX_UPDATE_OP, ei->bei_e );
if ( rc == DB_LOCK_DEADLOCK ) {
TXN_ABORT( txn );
ldap_pvt_thread_yield();
continue;
}
if ( rc == 0 ) {
rc = TXN_COMMIT( txn, 0 );
txn = NULL;
}
if ( rc )
break;
}
id++;
getnext = 1;
}
for ( i = 0; i < bdb->bi_nattrs; i++ ) {
if ( bdb->bi_attrs[ i ]->ai_indexmask & BDB_INDEX_DELETING
|| bdb->bi_attrs[ i ]->ai_newmask == 0 )
{
continue;
}
bdb->bi_attrs[ i ]->ai_indexmask = bdb->bi_attrs[ i ]->ai_newmask;
bdb->bi_attrs[ i ]->ai_newmask = 0;
}
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
ldap_pvt_runqueue_stoptask( &slapd_rq, rtask );
bdb->bi_index_task = NULL;
ldap_pvt_runqueue_remove( &slapd_rq, rtask );
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
return NULL;
}
/* Cleanup loose ends after Modify completes */
static int
bdb_cf_cleanup( ConfigArgs *c )
{
struct bdb_info *bdb = c->be->be_private;
int rc = 0;
if ( bdb->bi_flags & BDB_UPD_CONFIG ) {
if ( bdb->bi_db_config ) {
int i;
FILE *f = fopen( bdb->bi_db_config_path, "w" );
if ( f ) {
for (i=0; bdb->bi_db_config[i].bv_val; i++)
fprintf( f, "%s\n", bdb->bi_db_config[i].bv_val );
fclose( f );
}
} else {
unlink( bdb->bi_db_config_path );
}
bdb->bi_flags ^= BDB_UPD_CONFIG;
}
if ( bdb->bi_flags & BDB_DEL_INDEX ) {
bdb_attr_flush( bdb );
bdb->bi_flags ^= BDB_DEL_INDEX;
}
if ( bdb->bi_flags & BDB_RE_OPEN ) {
bdb->bi_flags ^= BDB_RE_OPEN;
rc = c->be->bd_info->bi_db_close( c->be, &c->reply );
if ( rc == 0 )
rc = c->be->bd_info->bi_db_open( c->be, &c->reply );
/* If this fails, we need to restart */
if ( rc ) {
slapd_shutdown = 2;
snprintf( c->cr_msg, sizeof( c->cr_msg ),
"failed to reopen database, rc=%d", rc );
Debug( LDAP_DEBUG_ANY, LDAP_XSTRING(bdb_cf_cleanup)
": %s\n", c->cr_msg, 0, 0 );
rc = LDAP_OTHER;
}
}
return rc;
}
static int
bdb_cf_gen( ConfigArgs *c )
{
struct bdb_info *bdb = c->be->be_private;
int rc;
if ( c->op == SLAP_CONFIG_EMIT ) {
rc = 0;
switch( c->type ) {
case BDB_CHKPT:
if ( bdb->bi_txn_cp ) {
char buf[64];
struct berval bv;
bv.bv_len = sprintf( buf, "%d %d", bdb->bi_txn_cp_kbyte,
bdb->bi_txn_cp_min );
bv.bv_val = buf;
value_add_one( &c->rvalue_vals, &bv );
} else{
rc = 1;
}
break;
case BDB_CRYPTFILE:
if ( bdb->bi_db_crypt_file ) {
c->value_string = ch_strdup( bdb->bi_db_crypt_file );
} else {
rc = 1;
}
break;
/* If a crypt file has been set, its contents are copied here.
* But we don't want the key to be incorporated here.
*/
case BDB_CRYPTKEY:
if ( !bdb->bi_db_crypt_file && !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
value_add_one( &c->rvalue_vals, &bdb->bi_db_crypt_key );
} else {
rc = 1;
}
break;
case BDB_DIRECTORY:
if ( bdb->bi_dbenv_home ) {
c->value_string = ch_strdup( bdb->bi_dbenv_home );
} else {
rc = 1;
}
break;
case BDB_CONFIG:
if ( !( bdb->bi_flags & BDB_IS_OPEN )
&& !bdb->bi_db_config )
{
char buf[SLAP_TEXT_BUFLEN];
FILE *f = fopen( bdb->bi_db_config_path, "r" );
struct berval bv;
if ( f ) {
bdb->bi_flags |= BDB_HAS_CONFIG;
while ( fgets( buf, sizeof(buf), f )) {
ber_str2bv( buf, 0, 1, &bv );
if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\n' ) {
bv.bv_len--;
bv.bv_val[bv.bv_len] = '\0';
}
/* shouldn't need this, but ... */
if ( bv.bv_len > 0 && bv.bv_val[bv.bv_len-1] == '\r' ) {
bv.bv_len--;
bv.bv_val[bv.bv_len] = '\0';
}
ber_bvarray_add( &bdb->bi_db_config, &bv );
}
fclose( f );
}
}
if ( bdb->bi_db_config ) {
int i;
struct berval bv;
bv.bv_val = c->log;
for (i=0; !BER_BVISNULL(&bdb->bi_db_config[i]); i++) {
bv.bv_len = sprintf( bv.bv_val, "{%d}%s", i,
bdb->bi_db_config[i].bv_val );
value_add_one( &c->rvalue_vals, &bv );
}
}
if ( !c->rvalue_vals ) rc = 1;
break;
case BDB_NOSYNC:
if ( bdb->bi_dbenv_xflags & DB_TXN_NOSYNC )
c->value_int = 1;
break;
case BDB_INDEX:
bdb_attr_index_unparse( bdb, &c->rvalue_vals );
if ( !c->rvalue_vals ) rc = 1;
break;
case BDB_LOCKD:
rc = 1;
if ( bdb->bi_lock_detect != DB_LOCK_DEFAULT ) {
int i;
for (i=0; !BER_BVISNULL(&bdb_lockd[i].word); i++) {
if ( bdb->bi_lock_detect == bdb_lockd[i].mask ) {
value_add_one( &c->rvalue_vals, &bdb_lockd[i].word );
rc = 0;
break;
}
}
}
break;
case BDB_SSTACK:
c->value_int = bdb->bi_search_stack_depth;
break;
}
return rc;
} else if ( c->op == LDAP_MOD_DELETE ) {
rc = 0;
switch( c->type ) {
/* single-valued no-ops */
case BDB_LOCKD:
case BDB_SSTACK:
break;
case BDB_CHKPT:
if ( bdb->bi_txn_cp_task ) {
struct re_s *re = bdb->bi_txn_cp_task;
bdb->bi_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 );
}
bdb->bi_txn_cp = 0;
break;
case BDB_CONFIG:
if ( c->valx < 0 ) {
ber_bvarray_free( bdb->bi_db_config );
bdb->bi_db_config = NULL;
} else {
int i = c->valx;
ch_free( bdb->bi_db_config[i].bv_val );
for (; bdb->bi_db_config[i].bv_val; i++)
bdb->bi_db_config[i] = bdb->bi_db_config[i+1];
}
bdb->bi_flags |= BDB_UPD_CONFIG;
c->cleanup = bdb_cf_cleanup;
break;
/* Doesn't really make sense to change these on the fly;
* the entire DB must be dumped and reloaded
*/
case BDB_CRYPTFILE:
if ( bdb->bi_db_crypt_file ) {
ch_free( bdb->bi_db_crypt_file );
bdb->bi_db_crypt_file = NULL;
}
/* FALLTHRU */
case BDB_CRYPTKEY:
if ( !BER_BVISNULL( &bdb->bi_db_crypt_key )) {
ch_free( bdb->bi_db_crypt_key.bv_val );
BER_BVZERO( &bdb->bi_db_crypt_key );
}
break;
case BDB_DIRECTORY:
bdb->bi_flags |= BDB_RE_OPEN;
bdb->bi_flags ^= BDB_HAS_CONFIG;
ch_free( bdb->bi_dbenv_home );
bdb->bi_dbenv_home = NULL;
ch_free( bdb->bi_db_config_path );
bdb->bi_db_config_path = NULL;
c->cleanup = bdb_cf_cleanup;
ldap_pvt_thread_pool_purgekey( bdb->bi_dbenv );
break;
case BDB_NOSYNC:
bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC, 0 );
break;
case BDB_INDEX:
if ( c->valx == -1 ) {
int i;
/* delete all (FIXME) */
for ( i = 0; i < bdb->bi_nattrs; i++ ) {
bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING;
}
bdb->bi_flags |= BDB_DEL_INDEX;
c->cleanup = bdb_cf_cleanup;
} else {
struct berval bv, def = BER_BVC("default");
char *ptr;
for (ptr = c->line; !isspace( (unsigned char) *ptr ); ptr++);
bv.bv_val = c->line;
bv.bv_len = ptr - bv.bv_val;
if ( bvmatch( &bv, &def )) {
bdb->bi_defaultmask = 0;
} else {
int i;
char **attrs;
char sep;
sep = bv.bv_val[ bv.bv_len ];
bv.bv_val[ bv.bv_len ] = '\0';
attrs = ldap_str2charray( bv.bv_val, "," );
for ( i = 0; attrs[ i ]; i++ ) {
AttributeDescription *ad = NULL;
const char *text;
AttrInfo *ai;
slap_str2ad( attrs[ i ], &ad, &text );
/* if we got here... */
assert( ad != NULL );
ai = bdb_attr_mask( bdb, ad );
/* if we got here... */
assert( ai != NULL );
ai->ai_indexmask |= BDB_INDEX_DELETING;
bdb->bi_flags |= BDB_DEL_INDEX;
c->cleanup = bdb_cf_cleanup;
}
bv.bv_val[ bv.bv_len ] = sep;
ldap_charray_free( attrs );
}
}
break;
}
return rc;
}
switch( c->type ) {
case BDB_CHKPT: {
long l;
bdb->bi_txn_cp = 1;
if ( lutil_atolx( &l, c->argv[1], 0 ) != 0 ) {
fprintf( stderr, "%s: "
"invalid kbyte \"%s\" in \"checkpoint\".\n",
c->log, c->argv[1] );
return 1;
}
bdb->bi_txn_cp_kbyte = l;
if ( lutil_atolx( &l, c->argv[2], 0 ) != 0 ) {
fprintf( stderr, "%s: "
"invalid minutes \"%s\" in \"checkpoint\".\n",
c->log, c->argv[2] );
return 1;
}
bdb->bi_txn_cp_min = l;
/* If we're in server mode and time-based checkpointing is enabled,
* submit a task to perform periodic checkpoints.
*/
if ((slapMode & SLAP_SERVER_MODE) && bdb->bi_txn_cp_min ) {
struct re_s *re = bdb->bi_txn_cp_task;
if ( re ) {
re->interval.tv_sec = bdb->bi_txn_cp_min * 60;
} else {
if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
fprintf( stderr, "%s: "
"\"checkpoint\" must occur after \"suffix\".\n",
c->log );
return 1;
}
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
bdb->bi_txn_cp_task = ldap_pvt_runqueue_insert( &slapd_rq,
bdb->bi_txn_cp_min * 60, bdb_checkpoint, bdb,
LDAP_XSTRING(bdb_checkpoint), c->be->be_suffix[0].bv_val );
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
}
}
} break;
case BDB_CONFIG: {
char *ptr = c->line;
struct berval bv;
if ( c->op == SLAP_CONFIG_ADD ) {
ptr += STRLENOF("dbconfig");
while (!isspace((unsigned char)*ptr)) ptr++;
while (isspace((unsigned char)*ptr)) ptr++;
}
if ( bdb->bi_flags & BDB_IS_OPEN ) {
bdb->bi_flags |= BDB_UPD_CONFIG;
c->cleanup = bdb_cf_cleanup;
} else {
/* If we're just starting up...
*/
FILE *f;
/* If a DB_CONFIG file exists, or we don't know the path
* to the DB_CONFIG file, ignore these directives
*/
if (( bdb->bi_flags & BDB_HAS_CONFIG ) || !bdb->bi_db_config_path )
break;
f = fopen( bdb->bi_db_config_path, "a" );
if ( f ) {
/* FIXME: EBCDIC probably needs special handling */
fprintf( f, "%s\n", ptr );
fclose( f );
}
}
ber_str2bv( ptr, 0, 1, &bv );
ber_bvarray_add( &bdb->bi_db_config, &bv );
}
break;
case BDB_CRYPTFILE:
rc = lutil_get_filed_password( c->value_string, &bdb->bi_db_crypt_key );
if ( rc == 0 ) {
bdb->bi_db_crypt_file = c->value_string;
}
break;
/* Cannot set key if file was already set */
case BDB_CRYPTKEY:
if ( bdb->bi_db_crypt_file ) {
rc = 1;
} else {
bdb->bi_db_crypt_key = c->value_bv;
}
break;
case BDB_DIRECTORY: {
FILE *f;
char *ptr, *testpath;
int len;
len = strlen( c->value_string );
testpath = ch_malloc( len + STRLENOF(LDAP_DIRSEP) + STRLENOF("DUMMY") + 1 );
ptr = lutil_strcopy( testpath, c->value_string );
*ptr++ = LDAP_DIRSEP[0];
strcpy( ptr, "DUMMY" );
f = fopen( testpath, "w" );
if ( f ) {
fclose( f );
unlink( testpath );
}
ch_free( testpath );
if ( !f ) {
snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s: invalid path: %s",
c->log, strerror( errno ));
Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 );
return -1;
}
if ( bdb->bi_dbenv_home )
ch_free( bdb->bi_dbenv_home );
bdb->bi_dbenv_home = c->value_string;
/* See if a DB_CONFIG file already exists here */
if ( bdb->bi_db_config_path )
ch_free( bdb->bi_db_config_path );
bdb->bi_db_config_path = ch_malloc( len +
STRLENOF(LDAP_DIRSEP) + STRLENOF("DB_CONFIG") + 1 );
ptr = lutil_strcopy( bdb->bi_db_config_path, bdb->bi_dbenv_home );
*ptr++ = LDAP_DIRSEP[0];
strcpy( ptr, "DB_CONFIG" );
f = fopen( bdb->bi_db_config_path, "r" );
if ( f ) {
bdb->bi_flags |= BDB_HAS_CONFIG;
fclose(f);
}
}
break;
case BDB_NOSYNC:
if ( c->value_int )
bdb->bi_dbenv_xflags |= DB_TXN_NOSYNC;
else
bdb->bi_dbenv_xflags &= ~DB_TXN_NOSYNC;
if ( bdb->bi_flags & BDB_IS_OPEN ) {
bdb->bi_dbenv->set_flags( bdb->bi_dbenv, DB_TXN_NOSYNC,
c->value_int );
}
break;
case BDB_INDEX:
rc = bdb_attr_index_config( bdb, c->fname, c->lineno,
c->argc - 1, &c->argv[1] );
if( rc != LDAP_SUCCESS ) return 1;
if (( bdb->bi_flags & BDB_IS_OPEN ) && !bdb->bi_index_task ) {
/* Start the task as soon as we finish here. Set a long
* interval (10 hours) so that it only gets scheduled once.
*/
if ( c->be->be_suffix == NULL || BER_BVISNULL( &c->be->be_suffix[0] ) ) {
fprintf( stderr, "%s: "
"\"index\" must occur after \"suffix\".\n",
c->log );
return 1;
}
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
bdb->bi_index_task = ldap_pvt_runqueue_insert( &slapd_rq, 36000,
bdb_online_index, c->be,
LDAP_XSTRING(bdb_online_index), c->be->be_suffix[0].bv_val );
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
}
break;
case BDB_LOCKD:
rc = verb_to_mask( c->argv[1], bdb_lockd );
if ( BER_BVISNULL(&bdb_lockd[rc].word) ) {
fprintf( stderr, "%s: "
"bad policy (%s) in \"lockDetect <policy>\" line\n",
c->log, c->argv[1] );
return 1;
}
bdb->bi_lock_detect = rc;
break;
case BDB_SSTACK:
if ( c->value_int < MINIMUM_SEARCH_STACK_DEPTH ) {
fprintf( stderr,
"%s: depth %d too small, using %d\n",
c->log, c->value_int, MINIMUM_SEARCH_STACK_DEPTH );
c->value_int = MINIMUM_SEARCH_STACK_DEPTH;
}
bdb->bi_search_stack_depth = c->value_int;
break;
}
return 0;
}
int bdb_back_init_cf( BackendInfo *bi )
{
int rc;
bi->bi_cf_ocs = bdbocs;
rc = config_register_schema( bdbcfg, bdbocs );
if ( rc ) return rc;
return 0;
}
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