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https://git.openldap.org/openldap/openldap.git
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423 lines
8.0 KiB
C
423 lines
8.0 KiB
C
/* index.c - routines for dealing with attribute indexes */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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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-bdb.h"
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#include "lutil_hash.h"
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static char presence_keyval[LUTIL_HASH_BYTES] = {0,0,0,1};
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static struct berval presence_key = {LUTIL_HASH_BYTES, presence_keyval};
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static slap_mask_t index_mask(
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Backend *be,
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AttributeDescription *desc,
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char **dbname,
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struct berval *atname )
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{
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AttributeType *at;
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slap_mask_t mask = 0;
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bdb_attr_mask( be->be_private, desc, &mask );
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if( mask ) {
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*atname = desc->ad_cname;
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*dbname = desc->ad_cname.bv_val;
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return mask;
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}
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/* If there is a language tag, did we ever index the base
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* type? If so, check for mask, otherwise it's not there.
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*/
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if( slap_ad_is_lang( desc ) && desc != desc->ad_type->sat_ad ) {
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/* has language tag */
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bdb_attr_mask( be->be_private, desc->ad_type->sat_ad, &mask );
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if ( mask && ( mask ^ SLAP_INDEX_NOLANG ) ) {
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*atname = desc->ad_type->sat_cname;
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*dbname = desc->ad_type->sat_cname.bv_val;
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return mask;
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}
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}
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/* see if supertype defined mask for its subtypes */
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for( at = desc->ad_type; at != NULL ; at = at->sat_sup ) {
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/* If no AD, we've never indexed this type */
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if ( !at->sat_ad ) continue;
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bdb_attr_mask( be->be_private, at->sat_ad, &mask );
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if ( mask & SLAP_INDEX_AUTO_SUBTYPES ) {
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*atname = desc->ad_type->sat_cname;
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*dbname = at->sat_cname.bv_val;
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return mask;
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}
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if ( mask && ( mask ^ SLAP_INDEX_NOSUBTYPES ) ) {
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*atname = at->sat_cname;
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*dbname = at->sat_cname.bv_val;
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return mask;
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}
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}
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return 0;
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}
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int bdb_index_is_indexed(
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Backend *be,
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AttributeDescription *desc )
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{
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int rc;
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slap_mask_t mask;
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char *dbname;
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struct berval prefix;
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mask = index_mask( be, desc, &dbname, &prefix );
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if( mask == 0 ) {
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return LDAP_INAPPROPRIATE_MATCHING;
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}
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return LDAP_SUCCESS;
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}
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int bdb_index_param(
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Backend *be,
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AttributeDescription *desc,
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int ftype,
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DB **dbp,
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slap_mask_t *maskp,
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struct berval *prefixp )
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{
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int rc;
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slap_mask_t mask;
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DB *db;
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char *dbname;
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mask = index_mask( be, desc, &dbname, prefixp );
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if( mask == 0 ) {
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return LDAP_INAPPROPRIATE_MATCHING;
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}
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rc = bdb_db_cache( be, dbname, &db );
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if( rc != LDAP_SUCCESS ) {
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return rc;
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}
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switch( ftype ) {
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case LDAP_FILTER_PRESENT:
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_PRESENT ) ) {
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goto done;
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}
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break;
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case LDAP_FILTER_APPROX:
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_APPROX ) ) {
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goto done;
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}
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/* fall thru */
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case LDAP_FILTER_EQUALITY:
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_EQUALITY ) ) {
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goto done;
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}
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break;
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case LDAP_FILTER_SUBSTRINGS:
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_SUBSTR ) ) {
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goto done;
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}
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break;
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default:
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return LDAP_OTHER;
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}
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return LDAP_INAPPROPRIATE_MATCHING;
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done:
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*dbp = db;
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*maskp = mask;
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return LDAP_SUCCESS;
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}
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static int indexer(
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Backend *be,
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DB_TXN *txn,
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char *dbname,
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struct berval *atname,
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BerVarray vals,
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ID id,
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int op,
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slap_mask_t mask )
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{
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int rc, i;
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const char *text;
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DB *db;
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AttributeDescription *ad = NULL;
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struct berval *keys;
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assert( mask );
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rc = bdb_db_cache( be, dbname, &db );
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if ( rc != LDAP_SUCCESS ) {
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#ifdef NEW_LOGGING
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LDAP_LOG(( "index", LDAP_LEVEL_ERR,
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"bdb_index_read: Could not open DB %s\n", dbname));
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#else
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Debug( LDAP_DEBUG_ANY,
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"<= bdb_index_read NULL (could not open %s)\n",
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dbname, 0, 0 );
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#endif
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return LDAP_OTHER;
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}
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rc = slap_bv2ad( atname, &ad, &text );
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if( rc != LDAP_SUCCESS ) return rc;
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_PRESENT ) ) {
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rc = bdb_key_change( be, db, txn, &presence_key, id, op );
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if( rc ) {
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goto done;
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}
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}
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_EQUALITY ) ) {
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rc = ad->ad_type->sat_equality->smr_indexer(
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LDAP_FILTER_EQUALITY,
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mask,
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ad->ad_type->sat_syntax,
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ad->ad_type->sat_equality,
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atname, vals, &keys );
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if( rc == LDAP_SUCCESS && keys != NULL ) {
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for( i=0; keys[i].bv_val != NULL; i++ ) {
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rc = bdb_key_change( be, db, txn, &keys[i], id, op );
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if( rc ) {
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ber_bvarray_free( keys );
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goto done;
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}
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}
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ber_bvarray_free( keys );
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}
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rc = LDAP_SUCCESS;
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}
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_APPROX ) ) {
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rc = ad->ad_type->sat_approx->smr_indexer(
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LDAP_FILTER_APPROX,
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mask,
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ad->ad_type->sat_syntax,
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ad->ad_type->sat_approx,
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atname, vals, &keys );
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if( rc == LDAP_SUCCESS && keys != NULL ) {
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for( i=0; keys[i].bv_val != NULL; i++ ) {
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rc = bdb_key_change( be, db, txn, &keys[i], id, op );
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if( rc ) {
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ber_bvarray_free( keys );
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goto done;
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}
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}
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ber_bvarray_free( keys );
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}
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rc = LDAP_SUCCESS;
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}
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if( IS_SLAP_INDEX( mask, SLAP_INDEX_SUBSTR ) ) {
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rc = ad->ad_type->sat_substr->smr_indexer(
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LDAP_FILTER_SUBSTRINGS,
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mask,
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ad->ad_type->sat_syntax,
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ad->ad_type->sat_substr,
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atname, vals, &keys );
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if( rc == LDAP_SUCCESS && keys != NULL ) {
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for( i=0; keys[i].bv_val != NULL; i++ ) {
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bdb_key_change( be, db, txn, &keys[i], id, op );
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if( rc ) {
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ber_bvarray_free( keys );
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goto done;
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}
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}
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ber_bvarray_free( keys );
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}
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rc = LDAP_SUCCESS;
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}
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done:
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return rc;
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}
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static int index_at_values(
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Backend *be,
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DB_TXN *txn,
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AttributeType *type,
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struct berval *lang,
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BerVarray vals,
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ID id,
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int op,
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char ** dbnamep,
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slap_mask_t *maskp )
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{
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int rc;
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slap_mask_t mask = 0;
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slap_mask_t tmpmask = 0;
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int lindex = 0;
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if( type->sat_sup ) {
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/* recurse */
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rc = index_at_values( be, txn,
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type->sat_sup, lang,
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vals, id, op,
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dbnamep, &tmpmask );
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if( rc ) return rc;
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}
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/* If this type has no AD, we've never used it before */
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if( type->sat_ad ) {
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bdb_attr_mask( be->be_private, type->sat_ad, &mask );
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}
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if( mask ) {
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*dbnamep = type->sat_cname.bv_val;
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} else if ( tmpmask & SLAP_INDEX_AUTO_SUBTYPES ) {
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mask = tmpmask;
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}
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if( mask ) {
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rc = indexer( be, txn, *dbnamep,
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&type->sat_cname,
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vals, id, op,
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mask );
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if( rc ) return rc;
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if( mask & SLAP_INDEX_AUTO_SUBTYPES ) {
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*maskp = mask;
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}
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}
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if( lang->bv_len ) {
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char *dbname = NULL;
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struct berval lname;
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AttributeDescription *desc;
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tmpmask = 0;
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lname.bv_val = NULL;
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desc = ad_find_lang( type, lang );
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if( desc ) {
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bdb_attr_mask( be->be_private, desc, &tmpmask );
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}
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if( tmpmask ) {
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dbname = desc->ad_cname.bv_val;
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lname = desc->ad_cname;
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mask = tmpmask;
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}
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if( dbname != NULL ) {
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rc = indexer( be, txn, dbname, &lname,
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vals, id, op,
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mask );
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if( !tmpmask ) {
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ch_free( lname.bv_val );
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}
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if( rc ) {
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return rc;
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}
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}
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}
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return LDAP_SUCCESS;
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}
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int bdb_index_values(
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Backend *be,
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DB_TXN *txn,
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AttributeDescription *desc,
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BerVarray vals,
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ID id,
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int op )
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{
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int rc;
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char *dbname = NULL;
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slap_mask_t mask;
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rc = index_at_values( be, txn,
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desc->ad_type, &desc->ad_lang,
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vals, id, op,
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&dbname, &mask );
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return rc;
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}
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int
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bdb_index_entry(
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Backend *be,
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DB_TXN *txn,
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int op,
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Entry *e,
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Attribute *ap )
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{
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int rc;
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#ifdef NEW_LOGGING
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LDAP_LOG(( "index", LDAP_LEVEL_ENTRY,
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"index_entry: %s (%s) %ld\n",
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op == SLAP_INDEX_ADD_OP ? "add" : "del",
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e->e_dn, (long) e->e_id ));
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#else
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Debug( LDAP_DEBUG_TRACE, "=> index_entry_%s( %ld, \"%s\" )\n",
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op == SLAP_INDEX_ADD_OP ? "add" : "del",
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(long) e->e_id, e->e_dn );
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#endif
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/* add each attribute to the indexes */
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for ( ; ap != NULL; ap = ap->a_next ) {
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rc = bdb_index_values( be, txn,
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ap->a_desc, ap->a_vals, e->e_id, op );
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if( rc != LDAP_SUCCESS ) {
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#ifdef NEW_LOGGING
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LDAP_LOG(( "index", LDAP_LEVEL_ENTRY,
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"index_entry: success\n" ));
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<= index_entry_%s( %ld, \"%s\" ) success\n",
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op == SLAP_INDEX_ADD_OP ? "add" : "del",
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(long) e->e_id, e->e_dn );
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#endif
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return rc;
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}
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}
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#ifdef NEW_LOGGING
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LDAP_LOG(( "index", LDAP_LEVEL_ENTRY,
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"index_entry: success\n" ));
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#else
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Debug( LDAP_DEBUG_TRACE, "<= index_entry_%s( %ld, \"%s\" ) success\n",
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op == SLAP_INDEX_ADD_OP ? "add" : "del",
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(long) e->e_id, e->e_dn );
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#endif
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return LDAP_SUCCESS;
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}
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