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Diffstat (limited to '')
| -rw-r--r-- | servers/slapd/back-bdb/config.c | 951 |
1 files changed, 951 insertions, 0 deletions
diff --git a/servers/slapd/back-bdb/config.c b/servers/slapd/back-bdb/config.c new file mode 100644 index 0000000..5746db8 --- /dev/null +++ b/servers/slapd/back-bdb/config.c @@ -0,0 +1,951 @@ +/* config.c - bdb backend configuration file routine */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2000-2021 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, + BDB_MODE, + BDB_PGSIZE, + BDB_CHECKSUM +}; + +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_ULONG|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_ULONG|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 }, + { "checksum", NULL, 1, 2, 0, ARG_ON_OFF|ARG_MAGIC|BDB_CHECKSUM, + bdb_cf_gen, "( OLcfgDbAt:1.16 NAME 'olcDbChecksum' " + "DESC 'Enable database checksum validation' " + "SYNTAX OMsBoolean 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 }, + { "dbpagesize", "db> <size", 3, 3, 0, ARG_MAGIC|BDB_PGSIZE, + bdb_cf_gen, "( OLcfgDbAt:1.15 NAME 'olcDbPageSize' " + "DESC 'Page size of specified DB, in Kbytes' " + "EQUALITY caseExactMatch " + "SYNTAX OMsDirectoryString )", 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_ULONG|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_ULONG|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_MAGIC|BDB_MODE, + bdb_cf_gen, "( OLcfgDbAt:0.3 NAME 'olcDbMode' " + "DESC 'Unix permissions of database files' " + "SYNTAX OMsDirectoryString 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 $ olcDbChecksum $ " + "olcDbConfig $ olcDbCryptFile $ olcDbCryptKey $ " + "olcDbNoSync $ olcDbDirtyRead $ olcDbIDLcacheSize $ " + "olcDbIndex $ olcDbLinearIndex $ olcDbLockDetect $ " + "olcDbMode $ olcDbSearchStack $ olcDbShmKey $ " + "olcDbCacheFree $ olcDbDNcacheSize $ olcDbPageSize ) )", + 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; + 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; + Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_online_index) ": txn id: %x\n", + txn->id(txn), 0, 0 ); + 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, &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 ) { + TXN_ABORT( txn ); + if ( rc == DB_LOCK_DEADLOCK ) { + ldap_pvt_thread_yield(); + continue; + } + break; + } + rc = TXN_COMMIT( txn, 0 ); + txn = NULL; + } + 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; + BerVarray bva; + + 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; + bva = bdb->bi_db_config; + bdb->bi_db_config = NULL; + rc = c->be->bd_info->bi_db_close( c->be, &c->reply ); + if ( rc == 0 ) { + if ( bdb->bi_flags & BDB_UPD_CONFIG ) { + if ( bva ) { + int i; + FILE *f = fopen( bdb->bi_db_config_path, "w" ); + if ( f ) { + bdb->bi_db_config = bva; + bva = NULL; + 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 { + ber_bvarray_free( bva ); + } + } else { + unlink( bdb->bi_db_config_path ); + } + bdb->bi_flags ^= BDB_UPD_CONFIG; + } + 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_MODE: { + char buf[64]; + struct berval bv; + bv.bv_len = snprintf( buf, sizeof(buf), "0%o", bdb->bi_dbenv_mode ); + if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) { + bv.bv_val = buf; + value_add_one( &c->rvalue_vals, &bv ); + } else { + rc = 1; + } + } break; + + case BDB_CHKPT: + if ( bdb->bi_txn_cp ) { + char buf[64]; + struct berval bv; + bv.bv_len = snprintf( buf, sizeof(buf), "%ld %ld", + (long) bdb->bi_txn_cp_kbyte, (long) bdb->bi_txn_cp_min ); + if ( bv.bv_len > 0 && bv.bv_len < sizeof(buf) ) { + bv.bv_val = buf; + value_add_one( &c->rvalue_vals, &bv ); + } else { + rc = 1; + } + } 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_CHECKSUM: + if ( bdb->bi_flags & BDB_CHKSUM ) + 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 == (u_int32_t)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; + + case BDB_PGSIZE: { + struct bdb_db_pgsize *ps; + char buf[SLAP_TEXT_BUFLEN]; + struct berval bv; + int rc = 1; + + bv.bv_val = buf; + for ( ps = bdb->bi_pagesizes; ps; ps = ps->bdp_next ) { + bv.bv_len = sprintf( buf, "%s %d", ps->bdp_name.bv_val, + ps->bdp_size / 1024 ); + value_add_one( &c->rvalue_vals, &bv ); + rc = 0; + + } + break; + } + } + return rc; + } else if ( c->op == LDAP_MOD_DELETE ) { + rc = 0; + switch( c->type ) { + case BDB_MODE: +#if 0 + /* FIXME: does it make any sense to change the mode, + * if we don't exec a chmod()? */ + bdb->bi_dbenv_mode = SLAPD_DEFAULT_DB_MODE; + break; +#endif + + /* 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|BDB_RE_OPEN; + 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_CHECKSUM: + bdb->bi_flags &= ~BDB_CHKSUM; + break; + case BDB_INDEX: + if ( c->valx == -1 ) { + int i; + + /* delete all */ + for ( i = 0; i < bdb->bi_nattrs; i++ ) { + bdb->bi_attrs[i]->ai_indexmask |= BDB_INDEX_DELETING; + } + bdb->bi_defaultmask = 0; + 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; + /* doesn't make sense on the fly; the DB file must be + * recreated + */ + case BDB_PGSIZE: { + struct bdb_db_pgsize *ps, **prev; + int i; + + for ( i = 0, prev = &bdb->bi_pagesizes, ps = *prev; ps; + prev = &ps->bdp_next, ps = ps->bdp_next, i++ ) { + if ( c->valx == -1 || i == c->valx ) { + *prev = ps->bdp_next; + ch_free( ps ); + ps = *prev; + if ( i == c->valx ) break; + } + } + } + break; + } + return rc; + } + + switch( c->type ) { + case BDB_MODE: + if ( ASCII_DIGIT( c->argv[1][0] ) ) { + long mode; + char *next; + errno = 0; + mode = strtol( c->argv[1], &next, 0 ); + if ( errno != 0 || next == c->argv[1] || next[0] != '\0' ) { + fprintf( stderr, "%s: " + "unable to parse mode=\"%s\".\n", + c->log, c->argv[1] ); + return 1; + } + bdb->bi_dbenv_mode = mode; + + } else { + char *m = c->argv[1]; + int who, what, mode = 0; + + if ( strlen( m ) != STRLENOF("-rwxrwxrwx") ) { + return 1; + } + + if ( m[0] != '-' ) { + return 1; + } + + m++; + for ( who = 0; who < 3; who++ ) { + for ( what = 0; what < 3; what++, m++ ) { + if ( m[0] == '-' ) { + continue; + } else if ( m[0] != "rwx"[what] ) { + return 1; + } + mode += ((1 << (2 - what)) << 3*(2 - who)); + } + } + bdb->bi_dbenv_mode = mode; + } + break; + 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|BDB_RE_OPEN; + 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_CHECKSUM: + if ( c->value_int ) + bdb->bi_flags |= BDB_CHKSUM; + else + bdb->bi_flags &= ~BDB_CHKSUM; + break; + + case BDB_INDEX: + rc = bdb_attr_index_config( bdb, c->fname, c->lineno, + c->argc - 1, &c->argv[1], &c->reply); + + 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 = (u_int32_t)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; + + case BDB_PGSIZE: { + struct bdb_db_pgsize *ps, **prev; + int i, s; + + s = atoi(c->argv[2]); + if ( s < 1 || s > 64 ) { + snprintf( c->cr_msg, sizeof( c->cr_msg ), + "%s: size must be > 0 and <= 64: %d", + c->log, s ); + Debug( LDAP_DEBUG_ANY, "%s\n", c->cr_msg, 0, 0 ); + return -1; + } + i = strlen(c->argv[1]); + ps = ch_malloc( sizeof(struct bdb_db_pgsize) + i + 1 ); + ps->bdp_next = NULL; + ps->bdp_name.bv_len = i; + ps->bdp_name.bv_val = (char *)(ps+1); + strcpy( ps->bdp_name.bv_val, c->argv[1] ); + ps->bdp_size = s * 1024; + for ( prev = &bdb->bi_pagesizes; *prev; prev = &(*prev)->bdp_next ) + ; + *prev = ps; + } + 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; +} |