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64cd7d3346
Resolved deadlock by passing target entry to be_group and using this if dn same as bdn. It might actually be safer to check entry ids instead of dns. Resolved bogus add to cache after failed acl check by deferring cache add until after parent/acl checks have successful been completed. Eliminated race condition caused by concurrent adds of same dn by adding 'li_add_mutex' around the critical section of code (most of ldbm_back_add). This code is preliminary and still needs significant testing.
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/* init.c - initialize ldbm backend */
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "back-ldbm.h"
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void
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ldbm_back_init(
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Backend *be
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)
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{
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struct ldbminfo *li;
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char *argv[ 4 ];
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int i;
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/* allocate backend-specific stuff */
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li = (struct ldbminfo *) ch_calloc( 1, sizeof(struct ldbminfo) );
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/* arrange to read nextid later (on first request for it) */
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li->li_nextid = -1;
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/* default cache size */
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li->li_cache.c_maxsize = DEFAULT_CACHE_SIZE;
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/* default database cache size */
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li->li_dbcachesize = DEFAULT_DBCACHE_SIZE;
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/* default cache mode is sync on write */
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li->li_dbcachewsync = 1;
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/* default file creation mode */
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li->li_mode = DEFAULT_MODE;
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/* default database directory */
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li->li_directory = DEFAULT_DB_DIRECTORY;
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/* always index dn, id2children, objectclass (used in some searches) */
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argv[ 0 ] = "dn";
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argv[ 1 ] = "dn";
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argv[ 2 ] = NULL;
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attr_syntax_config( "ldbm dn initialization", 0, 2, argv );
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argv[ 0 ] = "dn";
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argv[ 1 ] = "sub";
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argv[ 2 ] = "eq";
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argv[ 3 ] = NULL;
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attr_index_config( li, "ldbm dn initialization", 0, 3, argv, 1 );
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argv[ 0 ] = "id2children";
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argv[ 1 ] = "eq";
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argv[ 2 ] = NULL;
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attr_index_config( li, "ldbm id2children initialization", 0, 2, argv,
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1 );
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argv[ 0 ] = "objectclass";
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argv[ 1 ] = ch_strdup( "pres,eq" );
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argv[ 2 ] = NULL;
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attr_index_config( li, "ldbm objectclass initialization", 0, 2, argv,
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1 );
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free( argv[ 1 ] );
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/* initialize various mutex locks & condition variables */
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pthread_mutex_init( &li->li_add_mutex, pthread_mutexattr_default );
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pthread_mutex_init( &li->li_cache.c_mutex, pthread_mutexattr_default );
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pthread_mutex_init( &li->li_nextid_mutex, pthread_mutexattr_default );
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pthread_mutex_init( &li->li_dbcache_mutex, pthread_mutexattr_default );
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pthread_cond_init( &li->li_dbcache_cv, pthread_condattr_default );
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for ( i = 0; i < MAXDBCACHE; i++ ) {
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pthread_mutex_init( &li->li_dbcache[i].dbc_mutex,
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pthread_mutexattr_default );
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pthread_cond_init( &li->li_dbcache[i].dbc_cv,
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pthread_condattr_default );
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}
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be->be_private = li;
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}
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