Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1327 insertions, 0 deletions

diff --git a/servers/slapd/back-bdb/tools.c b/servers/slapd/back-bdb/tools.c
new file mode 100644
index 0000000..2345d65
--- /dev/null
+++ b/servers/slapd/back-bdb/tools.c
@@ -0,0 +1,1327 @@
+/* tools.c - tools for slap tools */
+/* $OpenLDAP$ */
+/* 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/string.h>
+#include <ac/errno.h>
+
+#define AVL_INTERNAL
+#include "back-bdb.h"
+#include "idl.h"
+
+static DBC *cursor = NULL;
+static DBT key, data;
+static EntryHeader eh;
+static ID nid, previd = NOID;
+static char ehbuf[16];
+
+typedef struct dn_id {
+	ID id;
+	struct berval dn;
+} dn_id;
+
+#define	HOLE_SIZE	4096
+static dn_id hbuf[HOLE_SIZE], *holes = hbuf;
+static unsigned nhmax = HOLE_SIZE;
+static unsigned nholes;
+
+static int index_nattrs;
+
+static struct berval	*tool_base;
+static int		tool_scope;
+static Filter		*tool_filter;
+static Entry		*tool_next_entry;
+
+#ifdef BDB_TOOL_IDL_CACHING
+#define bdb_tool_idl_cmp		BDB_SYMBOL(tool_idl_cmp)
+#define bdb_tool_idl_flush_one		BDB_SYMBOL(tool_idl_flush_one)
+#define bdb_tool_idl_flush		BDB_SYMBOL(tool_idl_flush)
+
+static int bdb_tool_idl_flush( BackendDB *be );
+
+#define	IDBLOCK	1024
+
+typedef struct bdb_tool_idl_cache_entry {
+	struct bdb_tool_idl_cache_entry *next;
+	ID ids[IDBLOCK];
+} bdb_tool_idl_cache_entry;
+ 
+typedef struct bdb_tool_idl_cache {
+	struct berval kstr;
+	bdb_tool_idl_cache_entry *head, *tail;
+	ID first, last;
+	int count;
+} bdb_tool_idl_cache;
+
+static bdb_tool_idl_cache_entry *bdb_tool_idl_free_list;
+#endif	/* BDB_TOOL_IDL_CACHING */
+
+static ID bdb_tool_ix_id;
+static Operation *bdb_tool_ix_op;
+static int *bdb_tool_index_threads, bdb_tool_index_tcount;
+static void *bdb_tool_index_rec;
+static struct bdb_info *bdb_tool_info;
+static ldap_pvt_thread_mutex_t bdb_tool_index_mutex;
+static ldap_pvt_thread_cond_t bdb_tool_index_cond_main;
+static ldap_pvt_thread_cond_t bdb_tool_index_cond_work;
+
+#if DB_VERSION_FULL >= 0x04060000
+#define	USE_TRICKLE	1
+#else
+/* Seems to slow things down too much in BDB 4.5 */
+#undef USE_TRICKLE
+#endif
+
+#ifdef USE_TRICKLE
+static ldap_pvt_thread_mutex_t bdb_tool_trickle_mutex;
+static ldap_pvt_thread_cond_t bdb_tool_trickle_cond;
+static ldap_pvt_thread_cond_t bdb_tool_trickle_cond_end;
+
+static void * bdb_tool_trickle_task( void *ctx, void *ptr );
+static int bdb_tool_trickle_active;
+#endif
+
+static void * bdb_tool_index_task( void *ctx, void *ptr );
+
+static int
+bdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep );
+
+static int bdb_tool_threads;
+
+int bdb_tool_entry_open(
+	BackendDB *be, int mode )
+{
+	struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+
+	/* initialize key and data thangs */
+	DBTzero( &key );
+	DBTzero( &data );
+	key.flags = DB_DBT_USERMEM;
+	key.data = &nid;
+	key.size = key.ulen = sizeof( nid );
+	data.flags = DB_DBT_USERMEM;
+
+	if (cursor == NULL) {
+		int rc = bdb->bi_id2entry->bdi_db->cursor(
+			bdb->bi_id2entry->bdi_db, bdb->bi_cache.c_txn, &cursor,
+			bdb->bi_db_opflags );
+		if( rc != 0 ) {
+			return -1;
+		}
+	}
+
+	/* Set up for threaded slapindex */
+	if (( slapMode & (SLAP_TOOL_QUICK|SLAP_TOOL_READONLY)) == SLAP_TOOL_QUICK ) {
+		if ( !bdb_tool_info ) {
+#ifdef USE_TRICKLE
+			ldap_pvt_thread_mutex_init( &bdb_tool_trickle_mutex );
+			ldap_pvt_thread_cond_init( &bdb_tool_trickle_cond );
+			ldap_pvt_thread_cond_init( &bdb_tool_trickle_cond_end );
+			ldap_pvt_thread_pool_submit( &connection_pool, bdb_tool_trickle_task, bdb->bi_dbenv );
+#endif
+
+			ldap_pvt_thread_mutex_init( &bdb_tool_index_mutex );
+			ldap_pvt_thread_cond_init( &bdb_tool_index_cond_main );
+			ldap_pvt_thread_cond_init( &bdb_tool_index_cond_work );
+			if ( bdb->bi_nattrs ) {
+				int i;
+				bdb_tool_threads = slap_tool_thread_max - 1;
+				if ( bdb_tool_threads > 1 ) {
+					bdb_tool_index_threads = ch_malloc( bdb_tool_threads * sizeof( int ));
+					bdb_tool_index_rec = ch_malloc( bdb->bi_nattrs * sizeof( IndexRec ));
+					bdb_tool_index_tcount = bdb_tool_threads - 1;
+					for (i=1; i<bdb_tool_threads; i++) {
+						int *ptr = ch_malloc( sizeof( int ));
+						*ptr = i;
+						ldap_pvt_thread_pool_submit( &connection_pool,
+							bdb_tool_index_task, ptr );
+					}
+				}
+			}
+			bdb_tool_info = bdb;
+		}
+	}
+
+	return 0;
+}
+
+int bdb_tool_entry_close(
+	BackendDB *be )
+{
+	if ( bdb_tool_info ) {
+		slapd_shutdown = 1;
+#ifdef USE_TRICKLE
+		ldap_pvt_thread_mutex_lock( &bdb_tool_trickle_mutex );
+
+		/* trickle thread may not have started yet */
+		while ( !bdb_tool_trickle_active )
+			ldap_pvt_thread_cond_wait( &bdb_tool_trickle_cond_end,
+					&bdb_tool_trickle_mutex );
+
+		ldap_pvt_thread_cond_signal( &bdb_tool_trickle_cond );
+		while ( bdb_tool_trickle_active )
+			ldap_pvt_thread_cond_wait( &bdb_tool_trickle_cond_end,
+					&bdb_tool_trickle_mutex );
+		ldap_pvt_thread_mutex_unlock( &bdb_tool_trickle_mutex );
+#endif
+		if ( bdb_tool_threads > 1 ) {
+			ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+
+			/* There might still be some threads starting */
+			while ( bdb_tool_index_tcount > 0 ) {
+				ldap_pvt_thread_cond_wait( &bdb_tool_index_cond_main,
+						&bdb_tool_index_mutex );
+			}
+
+			bdb_tool_index_tcount = bdb_tool_threads - 1;
+			ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond_work );
+
+			/* Make sure all threads are stopped */
+			while ( bdb_tool_index_tcount > 0 ) {
+				ldap_pvt_thread_cond_wait( &bdb_tool_index_cond_main,
+					&bdb_tool_index_mutex );
+			}
+			ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+
+			ch_free( bdb_tool_index_threads );
+			ch_free( bdb_tool_index_rec );
+			bdb_tool_index_tcount = bdb_tool_threads - 1;
+		}
+		bdb_tool_info = NULL;
+		slapd_shutdown = 0;
+	}
+
+	if( eh.bv.bv_val ) {
+		ch_free( eh.bv.bv_val );
+		eh.bv.bv_val = NULL;
+	}
+
+	if( cursor ) {
+		cursor->c_close( cursor );
+		cursor = NULL;
+	}
+
+#ifdef BDB_TOOL_IDL_CACHING
+	bdb_tool_idl_flush( be );
+#endif
+
+	if( nholes ) {
+		unsigned i;
+		fprintf( stderr, "Error, entries missing!\n");
+		for (i=0; i<nholes; i++) {
+			fprintf(stderr, "  entry %ld: %s\n",
+				holes[i].id, holes[i].dn.bv_val);
+		}
+		return -1;
+	}
+			
+	return 0;
+}
+
+ID
+bdb_tool_entry_first_x(
+	BackendDB *be,
+	struct berval *base,
+	int scope,
+	Filter *f )
+{
+	tool_base = base;
+	tool_scope = scope;
+	tool_filter = f;
+	
+	return bdb_tool_entry_next( be );
+}
+
+ID bdb_tool_entry_next(
+	BackendDB *be )
+{
+	int rc;
+	ID id;
+	struct bdb_info *bdb;
+
+	assert( be != NULL );
+	assert( slapMode & SLAP_TOOL_MODE );
+
+	bdb = (struct bdb_info *) be->be_private;
+	assert( bdb != NULL );
+
+next:;
+	/* Get the header */
+	data.ulen = data.dlen = sizeof( ehbuf );
+	data.data = ehbuf;
+	data.flags |= DB_DBT_PARTIAL;
+	rc = cursor->c_get( cursor, &key, &data, DB_NEXT );
+
+	if( rc ) {
+		/* If we're doing linear indexing and there are more attrs to
+		 * index, and we're at the end of the database, start over.
+		 */
+		if ( index_nattrs && rc == DB_NOTFOUND ) {
+			/* optional - do a checkpoint here? */
+			bdb_attr_info_free( bdb->bi_attrs[0] );
+			bdb->bi_attrs[0] = bdb->bi_attrs[index_nattrs];
+			index_nattrs--;
+			rc = cursor->c_get( cursor, &key, &data, DB_FIRST );
+			if ( rc ) {
+				return NOID;
+			}
+		} else {
+			return NOID;
+		}
+	}
+
+	BDB_DISK2ID( key.data, &id );
+	previd = id;
+
+	if ( tool_filter || tool_base ) {
+		static Operation op = {0};
+		static Opheader ohdr = {0};
+
+		op.o_hdr = &ohdr;
+		op.o_bd = be;
+		op.o_tmpmemctx = NULL;
+		op.o_tmpmfuncs = &ch_mfuncs;
+
+		if ( tool_next_entry ) {
+			bdb_entry_release( &op, tool_next_entry, 0 );
+			tool_next_entry = NULL;
+		}
+
+		rc = bdb_tool_entry_get_int( be, id, &tool_next_entry );
+		if ( rc == LDAP_NO_SUCH_OBJECT ) {
+			goto next;
+		}
+
+		assert( tool_next_entry != NULL );
+
+#ifdef BDB_HIER
+		/* TODO: needed until BDB_HIER is handled accordingly
+		 * in bdb_tool_entry_get_int() */
+		if ( tool_base && !dnIsSuffixScope( &tool_next_entry->e_nname, tool_base, tool_scope ) )
+		{
+			bdb_entry_release( &op, tool_next_entry, 0 );
+			tool_next_entry = NULL;
+			goto next;
+		}
+#endif
+
+		if ( tool_filter && test_filter( NULL, tool_next_entry, tool_filter ) != LDAP_COMPARE_TRUE )
+		{
+			bdb_entry_release( &op, tool_next_entry, 0 );
+			tool_next_entry = NULL;
+			goto next;
+		}
+	}
+
+	return id;
+}
+
+ID bdb_tool_dn2id_get(
+	Backend *be,
+	struct berval *dn
+)
+{
+	Operation op = {0};
+	Opheader ohdr = {0};
+	EntryInfo *ei = NULL;
+	int rc;
+
+	if ( BER_BVISEMPTY(dn) )
+		return 0;
+
+	op.o_hdr = &ohdr;
+	op.o_bd = be;
+	op.o_tmpmemctx = NULL;
+	op.o_tmpmfuncs = &ch_mfuncs;
+
+	rc = bdb_cache_find_ndn( &op, 0, dn, &ei );
+	if ( ei ) bdb_cache_entryinfo_unlock( ei );
+	if ( rc == DB_NOTFOUND )
+		return NOID;
+	
+	return ei->bei_id;
+}
+
+static int
+bdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep )
+{
+	Entry *e = NULL;
+	char *dptr;
+	int rc, eoff;
+
+	assert( be != NULL );
+	assert( slapMode & SLAP_TOOL_MODE );
+
+	if ( ( tool_filter || tool_base ) && id == previd && tool_next_entry != NULL ) {
+		*ep = tool_next_entry;
+		tool_next_entry = NULL;
+		return LDAP_SUCCESS;
+	}
+
+	if ( id != previd ) {
+		data.ulen = data.dlen = sizeof( ehbuf );
+		data.data = ehbuf;
+		data.flags |= DB_DBT_PARTIAL;
+
+		BDB_ID2DISK( id, &nid );
+		rc = cursor->c_get( cursor, &key, &data, DB_SET );
+		if ( rc ) {
+			rc = LDAP_OTHER;
+			goto done;
+		}
+	}
+
+	/* Get the header */
+	dptr = eh.bv.bv_val;
+	eh.bv.bv_val = ehbuf;
+	eh.bv.bv_len = data.size;
+	rc = entry_header( &eh );
+	eoff = eh.data - eh.bv.bv_val;
+	eh.bv.bv_val = dptr;
+	if ( rc ) {
+		rc = LDAP_OTHER;
+		goto done;
+	}
+
+	/* Get the size */
+	data.flags &= ~DB_DBT_PARTIAL;
+	data.ulen = 0;
+	rc = cursor->c_get( cursor, &key, &data, DB_CURRENT );
+	if ( rc != DB_BUFFER_SMALL ) {
+		rc = LDAP_OTHER;
+		goto done;
+	}
+
+	/* Allocate a block and retrieve the data */
+	eh.bv.bv_len = eh.nvals * sizeof( struct berval ) + data.size;
+	eh.bv.bv_val = ch_realloc( eh.bv.bv_val, eh.bv.bv_len );
+	eh.data = eh.bv.bv_val + eh.nvals * sizeof( struct berval );
+	data.data = eh.data;
+	data.ulen = data.size;
+
+	/* Skip past already parsed nattr/nvals */
+	eh.data += eoff;
+
+	rc = cursor->c_get( cursor, &key, &data, DB_CURRENT );
+	if ( rc ) {
+		rc = LDAP_OTHER;
+		goto done;
+	}
+
+#ifndef BDB_HIER
+	/* TODO: handle BDB_HIER accordingly */
+	if ( tool_base != NULL ) {
+		struct berval ndn;
+		entry_decode_dn( &eh, NULL, &ndn );
+
+		if ( !dnIsSuffixScope( &ndn, tool_base, tool_scope ) ) {
+			return LDAP_NO_SUCH_OBJECT;
+		}
+	}
+#endif
+
+#ifdef SLAP_ZONE_ALLOC
+	/* FIXME: will add ctx later */
+	rc = entry_decode( &eh, &e, NULL );
+#else
+	rc = entry_decode( &eh, &e );
+#endif
+
+	if( rc == LDAP_SUCCESS ) {
+		e->e_id = id;
+#ifdef BDB_HIER
+		if ( slapMode & SLAP_TOOL_READONLY ) {
+			struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+			EntryInfo *ei = NULL;
+			Operation op = {0};
+			Opheader ohdr = {0};
+
+			op.o_hdr = &ohdr;
+			op.o_bd = be;
+			op.o_tmpmemctx = NULL;
+			op.o_tmpmfuncs = &ch_mfuncs;
+
+			rc = bdb_cache_find_parent( &op, bdb->bi_cache.c_txn, id, &ei );
+			if ( rc == LDAP_SUCCESS ) {
+				bdb_cache_entryinfo_unlock( ei );
+				e->e_private = ei;
+				ei->bei_e = e;
+				bdb_fix_dn( e, 0 );
+				ei->bei_e = NULL;
+				e->e_private = NULL;
+			}
+		}
+#endif
+	}
+done:
+	if ( e != NULL ) {
+		*ep = e;
+	}
+
+	return rc;
+}
+
+Entry*
+bdb_tool_entry_get( BackendDB *be, ID id )
+{
+	Entry *e = NULL;
+
+	(void)bdb_tool_entry_get_int( be, id, &e );
+	return e;
+}
+
+static int bdb_tool_next_id(
+	Operation *op,
+	DB_TXN *tid,
+	Entry *e,
+	struct berval *text,
+	int hole )
+{
+	struct berval dn = e->e_name;
+	struct berval ndn = e->e_nname;
+	struct berval pdn, npdn;
+	EntryInfo *ei = NULL, eidummy;
+	int rc;
+
+	if (ndn.bv_len == 0) {
+		e->e_id = 0;
+		return 0;
+	}
+
+	rc = bdb_cache_find_ndn( op, tid, &ndn, &ei );
+	if ( ei ) bdb_cache_entryinfo_unlock( ei );
+	if ( rc == DB_NOTFOUND ) {
+		if ( !be_issuffix( op->o_bd, &ndn ) ) {
+			ID eid = e->e_id;
+			dnParent( &dn, &pdn );
+			dnParent( &ndn, &npdn );
+			e->e_name = pdn;
+			e->e_nname = npdn;
+			rc = bdb_tool_next_id( op, tid, e, text, 1 );
+			e->e_name = dn;
+			e->e_nname = ndn;
+			if ( rc ) {
+				return rc;
+			}
+			/* If parent didn't exist, it was created just now
+			 * and its ID is now in e->e_id. Make sure the current
+			 * entry gets added under the new parent ID.
+			 */
+			if ( eid != e->e_id ) {
+				eidummy.bei_id = e->e_id;
+				ei = &eidummy;
+			}
+		}
+		rc = bdb_next_id( op->o_bd, &e->e_id );
+		if ( rc ) {
+			snprintf( text->bv_val, text->bv_len,
+				"next_id failed: %s (%d)",
+				db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> bdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
+			return rc;
+		}
+		rc = bdb_dn2id_add( op, tid, ei, e );
+		if ( rc ) {
+			snprintf( text->bv_val, text->bv_len, 
+				"dn2id_add failed: %s (%d)",
+				db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> bdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
+		} else if ( hole ) {
+			if ( nholes == nhmax - 1 ) {
+				if ( holes == hbuf ) {
+					holes = ch_malloc( nhmax * sizeof(dn_id) * 2 );
+					AC_MEMCPY( holes, hbuf, sizeof(hbuf) );
+				} else {
+					holes = ch_realloc( holes, nhmax * sizeof(dn_id) * 2 );
+				}
+				nhmax *= 2;
+			}
+			ber_dupbv( &holes[nholes].dn, &ndn );
+			holes[nholes++].id = e->e_id;
+		}
+	} else if ( !hole ) {
+		unsigned i, j;
+
+		e->e_id = ei->bei_id;
+
+		for ( i=0; i<nholes; i++) {
+			if ( holes[i].id == e->e_id ) {
+				free(holes[i].dn.bv_val);
+				for (j=i;j<nholes;j++) holes[j] = holes[j+1];
+				holes[j].id = 0;
+				nholes--;
+				break;
+			} else if ( holes[i].id > e->e_id ) {
+				break;
+			}
+		}
+	}
+	return rc;
+}
+
+static int
+bdb_tool_index_add(
+	Operation *op,
+	DB_TXN *txn,
+	Entry *e )
+{
+	struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+
+	if ( !bdb->bi_nattrs )
+		return 0;
+
+	if ( bdb_tool_threads > 1 ) {
+		IndexRec *ir;
+		int i, rc;
+		Attribute *a;
+		
+		ir = bdb_tool_index_rec;
+		memset(ir, 0, bdb->bi_nattrs * sizeof( IndexRec ));
+
+		for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
+			rc = bdb_index_recset( bdb, a, a->a_desc->ad_type, 
+				&a->a_desc->ad_tags, ir );
+			if ( rc )
+				return rc;
+		}
+		bdb_tool_ix_id = e->e_id;
+		bdb_tool_ix_op = op;
+		ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+		/* Wait for all threads to be ready */
+		while ( bdb_tool_index_tcount > 0 ) {
+			ldap_pvt_thread_cond_wait( &bdb_tool_index_cond_main, 
+				&bdb_tool_index_mutex );
+		}
+		for ( i=1; i<bdb_tool_threads; i++ )
+			bdb_tool_index_threads[i] = LDAP_BUSY;
+		bdb_tool_index_tcount = bdb_tool_threads - 1;
+		ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond_work );
+		ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+		rc = bdb_index_recrun( op, bdb, ir, e->e_id, 0 );
+		if ( rc )
+			return rc;
+		ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+		for ( i=1; i<bdb_tool_threads; i++ ) {
+			if ( bdb_tool_index_threads[i] == LDAP_BUSY ) {
+				ldap_pvt_thread_cond_wait( &bdb_tool_index_cond_main, 
+					&bdb_tool_index_mutex );
+				i--;
+				continue;
+			}
+			if ( bdb_tool_index_threads[i] ) {
+				rc = bdb_tool_index_threads[i];
+				break;
+			}
+		}
+		ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+		return rc;
+	} else {
+		return bdb_index_entry_add( op, txn, e );
+	}
+}
+
+ID bdb_tool_entry_put(
+	BackendDB *be,
+	Entry *e,
+	struct berval *text )
+{
+	int rc;
+	struct bdb_info *bdb;
+	DB_TXN *tid = NULL;
+	Operation op = {0};
+	Opheader ohdr = {0};
+
+	assert( be != NULL );
+	assert( slapMode & SLAP_TOOL_MODE );
+
+	assert( text != NULL );
+	assert( text->bv_val != NULL );
+	assert( text->bv_val[0] == '\0' );	/* overconservative? */
+
+	Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(bdb_tool_entry_put)
+		"( %ld, \"%s\" )\n", (long) e->e_id, e->e_dn, 0 );
+
+	bdb = (struct bdb_info *) be->be_private;
+
+	if (! (slapMode & SLAP_TOOL_QUICK)) {
+	rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &tid, 
+		bdb->bi_db_opflags );
+	if( rc != 0 ) {
+		snprintf( text->bv_val, text->bv_len,
+			"txn_begin failed: %s (%d)",
+			db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
+			 text->bv_val, 0, 0 );
+		return NOID;
+	}
+	Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_tool_entry_put) ": txn id: %x\n",
+		tid->id(tid), 0, 0 );
+	}
+
+	op.o_hdr = &ohdr;
+	op.o_bd = be;
+	op.o_tmpmemctx = NULL;
+	op.o_tmpmfuncs = &ch_mfuncs;
+
+	/* add dn2id indices */
+	rc = bdb_tool_next_id( &op, tid, e, text, 0 );
+	if( rc != 0 ) {
+		goto done;
+	}
+
+#ifdef USE_TRICKLE
+	if (( slapMode & SLAP_TOOL_QUICK ) && (( e->e_id & 0xfff ) == 0xfff )) {
+		ldap_pvt_thread_cond_signal( &bdb_tool_trickle_cond );
+	}
+#endif
+
+	if ( !bdb->bi_linear_index )
+		rc = bdb_tool_index_add( &op, tid, e );
+	if( rc != 0 ) {
+		snprintf( text->bv_val, text->bv_len,
+				"index_entry_add failed: %s (%d)",
+				rc == LDAP_OTHER ? "Internal error" :
+				db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
+			text->bv_val, 0, 0 );
+		goto done;
+	}
+
+	/* id2entry index */
+	rc = bdb_id2entry_add( be, tid, e );
+	if( rc != 0 ) {
+		snprintf( text->bv_val, text->bv_len,
+				"id2entry_add failed: %s (%d)",
+				db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
+			text->bv_val, 0, 0 );
+		goto done;
+	}
+
+done:
+	if( rc == 0 ) {
+		if ( !( slapMode & SLAP_TOOL_QUICK )) {
+		rc = TXN_COMMIT( tid, 0 );
+		if( rc != 0 ) {
+			snprintf( text->bv_val, text->bv_len,
+					"txn_commit failed: %s (%d)",
+					db_strerror(rc), rc );
+			Debug( LDAP_DEBUG_ANY,
+				"=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
+				text->bv_val, 0, 0 );
+			e->e_id = NOID;
+		}
+		}
+
+	} else {
+		if ( !( slapMode & SLAP_TOOL_QUICK )) {
+		TXN_ABORT( tid );
+		snprintf( text->bv_val, text->bv_len,
+			"txn_aborted! %s (%d)",
+			rc == LDAP_OTHER ? "Internal error" :
+			db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
+			text->bv_val, 0, 0 );
+		}
+		e->e_id = NOID;
+	}
+
+	return e->e_id;
+}
+
+int bdb_tool_entry_reindex(
+	BackendDB *be,
+	ID id,
+	AttributeDescription **adv )
+{
+	struct bdb_info *bi = (struct bdb_info *) be->be_private;
+	int rc;
+	Entry *e;
+	DB_TXN *tid = NULL;
+	Operation op = {0};
+	Opheader ohdr = {0};
+
+	Debug( LDAP_DEBUG_ARGS,
+		"=> " LDAP_XSTRING(bdb_tool_entry_reindex) "( %ld )\n",
+		(long) id, 0, 0 );
+	assert( tool_base == NULL );
+	assert( tool_filter == NULL );
+
+	/* No indexes configured, nothing to do. Could return an
+	 * error here to shortcut things.
+	 */
+	if (!bi->bi_attrs) {
+		return 0;
+	}
+
+	/* Check for explicit list of attrs to index */
+	if ( adv ) {
+		int i, j, n;
+
+		if ( bi->bi_attrs[0]->ai_desc != adv[0] ) {
+			/* count */
+			for ( n = 0; adv[n]; n++ ) ;
+
+			/* insertion sort */
+			for ( i = 0; i < n; i++ ) {
+				AttributeDescription *ad = adv[i];
+				for ( j = i-1; j>=0; j--) {
+					if ( SLAP_PTRCMP( adv[j], ad ) <= 0 ) break;
+					adv[j+1] = adv[j];
+				}
+				adv[j+1] = ad;
+			}
+		}
+
+		for ( i = 0; adv[i]; i++ ) {
+			if ( bi->bi_attrs[i]->ai_desc != adv[i] ) {
+				for ( j = i+1; j < bi->bi_nattrs; j++ ) {
+					if ( bi->bi_attrs[j]->ai_desc == adv[i] ) {
+						AttrInfo *ai = bi->bi_attrs[i];
+						bi->bi_attrs[i] = bi->bi_attrs[j];
+						bi->bi_attrs[j] = ai;
+						break;
+					}
+				}
+				if ( j == bi->bi_nattrs ) {
+					Debug( LDAP_DEBUG_ANY,
+						LDAP_XSTRING(bdb_tool_entry_reindex)
+						": no index configured for %s\n",
+						adv[i]->ad_cname.bv_val, 0, 0 );
+					return -1;
+				}
+			}
+		}
+		bi->bi_nattrs = i;
+	}
+
+	/* Get the first attribute to index */
+	if (bi->bi_linear_index && !index_nattrs) {
+		index_nattrs = bi->bi_nattrs - 1;
+		bi->bi_nattrs = 1;
+	}
+
+	e = bdb_tool_entry_get( be, id );
+
+	if( e == NULL ) {
+		Debug( LDAP_DEBUG_ANY,
+			LDAP_XSTRING(bdb_tool_entry_reindex)
+			": could not locate id=%ld\n",
+			(long) id, 0, 0 );
+		return -1;
+	}
+
+	op.o_hdr = &ohdr;
+	op.o_bd = be;
+	op.o_tmpmemctx = NULL;
+	op.o_tmpmfuncs = &ch_mfuncs;
+
+	if (! (slapMode & SLAP_TOOL_QUICK)) {
+	rc = TXN_BEGIN( bi->bi_dbenv, NULL, &tid, bi->bi_db_opflags );
+	if( rc != 0 ) {
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_reindex) ": "
+			"txn_begin failed: %s (%d)\n",
+			db_strerror(rc), rc, 0 );
+		goto done;
+	}
+	Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_tool_entry_reindex) ": txn id: %x\n",
+		tid->id(tid), 0, 0 );
+	}
+ 	
+	/*
+	 * just (re)add them for now
+	 * assume that some other routine (not yet implemented)
+	 * will zap index databases
+	 *
+	 */
+
+	Debug( LDAP_DEBUG_TRACE,
+		"=> " LDAP_XSTRING(bdb_tool_entry_reindex) "( %ld, \"%s\" )\n",
+		(long) id, e->e_dn, 0 );
+
+	rc = bdb_tool_index_add( &op, tid, e );
+
+done:
+	if( rc == 0 ) {
+		if (! (slapMode & SLAP_TOOL_QUICK)) {
+		rc = TXN_COMMIT( tid, 0 );
+		if( rc != 0 ) {
+			Debug( LDAP_DEBUG_ANY,
+				"=> " LDAP_XSTRING(bdb_tool_entry_reindex)
+				": txn_commit failed: %s (%d)\n",
+				db_strerror(rc), rc, 0 );
+			e->e_id = NOID;
+		}
+		}
+
+	} else {
+		if (! (slapMode & SLAP_TOOL_QUICK)) {
+		TXN_ABORT( tid );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_reindex)
+			": txn_aborted! %s (%d)\n",
+			db_strerror(rc), rc, 0 );
+		}
+		e->e_id = NOID;
+	}
+	bdb_entry_release( &op, e, 0 );
+
+	return rc;
+}
+
+ID bdb_tool_entry_modify(
+	BackendDB *be,
+	Entry *e,
+	struct berval *text )
+{
+	int rc;
+	struct bdb_info *bdb;
+	DB_TXN *tid = NULL;
+	Operation op = {0};
+	Opheader ohdr = {0};
+
+	assert( be != NULL );
+	assert( slapMode & SLAP_TOOL_MODE );
+
+	assert( text != NULL );
+	assert( text->bv_val != NULL );
+	assert( text->bv_val[0] == '\0' );	/* overconservative? */
+
+	assert ( e->e_id != NOID );
+
+	Debug( LDAP_DEBUG_TRACE,
+		"=> " LDAP_XSTRING(bdb_tool_entry_modify) "( %ld, \"%s\" )\n",
+		(long) e->e_id, e->e_dn, 0 );
+
+	bdb = (struct bdb_info *) be->be_private;
+
+	if (! (slapMode & SLAP_TOOL_QUICK)) {
+		if( cursor ) {
+			cursor->c_close( cursor );
+			cursor = NULL;
+		}
+		rc = TXN_BEGIN( bdb->bi_dbenv, NULL, &tid, 
+			bdb->bi_db_opflags );
+		if( rc != 0 ) {
+			snprintf( text->bv_val, text->bv_len,
+				"txn_begin failed: %s (%d)",
+				db_strerror(rc), rc );
+			Debug( LDAP_DEBUG_ANY,
+				"=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
+				 text->bv_val, 0, 0 );
+			return NOID;
+		}
+		Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_tool_entry_modify) ": txn id: %x\n",
+			tid->id(tid), 0, 0 );
+	}
+
+	op.o_hdr = &ohdr;
+	op.o_bd = be;
+	op.o_tmpmemctx = NULL;
+	op.o_tmpmfuncs = &ch_mfuncs;
+
+	/* id2entry index */
+	rc = bdb_id2entry_update( be, tid, e );
+	if( rc != 0 ) {
+		snprintf( text->bv_val, text->bv_len,
+				"id2entry_add failed: %s (%d)",
+				db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
+			text->bv_val, 0, 0 );
+		goto done;
+	}
+
+done:
+	if( rc == 0 ) {
+		if (! (slapMode & SLAP_TOOL_QUICK)) {
+		rc = TXN_COMMIT( tid, 0 );
+		if( rc != 0 ) {
+			snprintf( text->bv_val, text->bv_len,
+					"txn_commit failed: %s (%d)",
+					db_strerror(rc), rc );
+			Debug( LDAP_DEBUG_ANY,
+				"=> " LDAP_XSTRING(bdb_tool_entry_modify) ": "
+				"%s\n", text->bv_val, 0, 0 );
+			e->e_id = NOID;
+		}
+		}
+
+	} else {
+		if (! (slapMode & SLAP_TOOL_QUICK)) {
+		TXN_ABORT( tid );
+		snprintf( text->bv_val, text->bv_len,
+			"txn_aborted! %s (%d)",
+			db_strerror(rc), rc );
+		Debug( LDAP_DEBUG_ANY,
+			"=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
+			text->bv_val, 0, 0 );
+		}
+		e->e_id = NOID;
+	}
+
+	return e->e_id;
+}
+
+#ifdef BDB_TOOL_IDL_CACHING
+static int
+bdb_tool_idl_cmp( const void *v1, const void *v2 )
+{
+	const bdb_tool_idl_cache *c1 = v1, *c2 = v2;
+	int rc;
+
+	if (( rc = c1->kstr.bv_len - c2->kstr.bv_len )) return rc;
+	return memcmp( c1->kstr.bv_val, c2->kstr.bv_val, c1->kstr.bv_len );
+}
+
+static int
+bdb_tool_idl_flush_one( void *v1, void *arg )
+{
+	bdb_tool_idl_cache *ic = v1;
+	DB *db = arg;
+	struct bdb_info *bdb = bdb_tool_info;
+	bdb_tool_idl_cache_entry *ice;
+	DBC *curs;
+	DBT key, data;
+	int i, rc;
+	ID id, nid;
+
+	/* Freshly allocated, ignore it */
+	if ( !ic->head && ic->count <= BDB_IDL_DB_SIZE ) {
+		return 0;
+	}
+
+	rc = db->cursor( db, NULL, &curs, 0 );
+	if ( rc )
+		return -1;
+
+	DBTzero( &key );
+	DBTzero( &data );
+
+	bv2DBT( &ic->kstr, &key );
+
+	data.size = data.ulen = sizeof( ID );
+	data.flags = DB_DBT_USERMEM;
+	data.data = &nid;
+
+	rc = curs->c_get( curs, &key, &data, DB_SET );
+	/* If key already exists and we're writing a range... */
+	if ( rc == 0 && ic->count > BDB_IDL_DB_SIZE ) {
+		/* If it's not currently a range, must delete old info */
+		if ( nid ) {
+			/* Skip lo */
+			while ( curs->c_get( curs, &key, &data, DB_NEXT_DUP ) == 0 )
+				curs->c_del( curs, 0 );
+
+			nid = 0;
+			/* Store range marker */
+			curs->c_put( curs, &key, &data, DB_KEYFIRST );
+		} else {
+			
+			/* Skip lo */
+			rc = curs->c_get( curs, &key, &data, DB_NEXT_DUP );
+
+			/* Get hi */
+			rc = curs->c_get( curs, &key, &data, DB_NEXT_DUP );
+
+			/* Delete hi */
+			curs->c_del( curs, 0 );
+		}
+		BDB_ID2DISK( ic->last, &nid );
+		curs->c_put( curs, &key, &data, DB_KEYLAST );
+		rc = 0;
+	} else if ( rc && rc != DB_NOTFOUND ) {
+		rc = -1;
+	} else if ( ic->count > BDB_IDL_DB_SIZE ) {
+		/* range, didn't exist before */
+		nid = 0;
+		rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
+		if ( rc == 0 ) {
+			BDB_ID2DISK( ic->first, &nid );
+			rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
+			if ( rc == 0 ) {
+				BDB_ID2DISK( ic->last, &nid );
+				rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
+			}
+		}
+		if ( rc ) {
+			rc = -1;
+		}
+	} else {
+		int n;
+
+		/* Just a normal write */
+		rc = 0;
+		for ( ice = ic->head, n=0; ice; ice = ice->next, n++ ) {
+			int end;
+			if ( ice->next ) {
+				end = IDBLOCK;
+			} else {
+				end = ic->count & (IDBLOCK-1);
+				if ( !end )
+					end = IDBLOCK;
+			}
+			for ( i=0; i<end; i++ ) {
+				if ( !ice->ids[i] ) continue;
+				BDB_ID2DISK( ice->ids[i], &nid );
+				rc = curs->c_put( curs, &key, &data, DB_NODUPDATA );
+				if ( rc ) {
+					if ( rc == DB_KEYEXIST ) {
+						rc = 0;
+						continue;
+					}
+					rc = -1;
+					break;
+				}
+			}
+			if ( rc ) {
+				rc = -1;
+				break;
+			}
+		}
+		if ( ic->head ) {
+			ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+			ic->tail->next = bdb_tool_idl_free_list;
+			bdb_tool_idl_free_list = ic->head;
+			bdb->bi_idl_cache_size -= n;
+			ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+		}
+	}
+	if ( ic != db->app_private ) {
+		ch_free( ic );
+	} else {
+		ic->head = ic->tail = NULL;
+	}
+	curs->c_close( curs );
+	return rc;
+}
+
+static int
+bdb_tool_idl_flush_db( DB *db, bdb_tool_idl_cache *ic )
+{
+	Avlnode *root = db->app_private;
+	int rc;
+
+	db->app_private = ic;
+	rc = avl_apply( root, bdb_tool_idl_flush_one, db, -1, AVL_INORDER );
+	avl_free( root, NULL );
+	db->app_private = NULL;
+	if ( rc != -1 )
+		rc = 0;
+	return rc;
+}
+
+static int
+bdb_tool_idl_flush( BackendDB *be )
+{
+	struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+	DB *db;
+	Avlnode *root;
+	int i, rc = 0;
+
+	for ( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
+		db = bdb->bi_databases[i]->bdi_db;
+		if ( !db->app_private ) continue;
+		rc = bdb_tool_idl_flush_db( db, NULL );
+		if ( rc )
+			break;
+	}
+	if ( !rc ) {
+		bdb->bi_idl_cache_size = 0;
+	}
+	return rc;
+}
+
+int bdb_tool_idl_add(
+	BackendDB *be,
+	DB *db,
+	DB_TXN *txn,
+	DBT *key,
+	ID id )
+{
+	struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+	bdb_tool_idl_cache *ic, itmp;
+	bdb_tool_idl_cache_entry *ice;
+	int rc;
+
+	if ( !bdb->bi_idl_cache_max_size )
+		return bdb_idl_insert_key( be, db, txn, key, id );
+
+	DBT2bv( key, &itmp.kstr );
+
+	ic = avl_find( (Avlnode *)db->app_private, &itmp, bdb_tool_idl_cmp );
+
+	/* No entry yet, create one */
+	if ( !ic ) {
+		DBC *curs;
+		DBT data;
+		ID nid;
+		int rc;
+
+		ic = ch_malloc( sizeof( bdb_tool_idl_cache ) + itmp.kstr.bv_len );
+		ic->kstr.bv_len = itmp.kstr.bv_len;
+		ic->kstr.bv_val = (char *)(ic+1);
+		AC_MEMCPY( ic->kstr.bv_val, itmp.kstr.bv_val, ic->kstr.bv_len );
+		ic->head = ic->tail = NULL;
+		ic->last = 0;
+		ic->count = 0;
+		avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
+			avl_dup_error );
+
+		/* load existing key count here */
+		rc = db->cursor( db, NULL, &curs, 0 );
+		if ( rc ) return rc;
+
+		data.ulen = sizeof( ID );
+		data.flags = DB_DBT_USERMEM;
+		data.data = &nid;
+		rc = curs->c_get( curs, key, &data, DB_SET );
+		if ( rc == 0 ) {
+			if ( nid == 0 ) {
+				ic->count = BDB_IDL_DB_SIZE+1;
+			} else {
+				db_recno_t count;
+
+				curs->c_count( curs, &count, 0 );
+				ic->count = count;
+				BDB_DISK2ID( &nid, &ic->first );
+			}
+		}
+		curs->c_close( curs );
+	}
+	/* are we a range already? */
+	if ( ic->count > BDB_IDL_DB_SIZE ) {
+		ic->last = id;
+		return 0;
+	/* Are we at the limit, and converting to a range? */
+	} else if ( ic->count == BDB_IDL_DB_SIZE ) {
+		int n;
+		for ( ice = ic->head, n=0; ice; ice = ice->next, n++ )
+			/* counting */ ;
+		if ( n ) {
+			ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+			ic->tail->next = bdb_tool_idl_free_list;
+			bdb_tool_idl_free_list = ic->head;
+			bdb->bi_idl_cache_size -= n;
+			ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+		}
+		ic->head = ic->tail = NULL;
+		ic->last = id;
+		ic->count++;
+		return 0;
+	}
+	/* No free block, create that too */
+	if ( !ic->tail || ( ic->count & (IDBLOCK-1)) == 0) {
+		ice = NULL;
+		ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+		if ( bdb->bi_idl_cache_size >= bdb->bi_idl_cache_max_size ) {
+			ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+			rc = bdb_tool_idl_flush_db( db, ic );
+			if ( rc )
+				return rc;
+			avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
+				avl_dup_error );
+			ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+		}
+		bdb->bi_idl_cache_size++;
+		if ( bdb_tool_idl_free_list ) {
+			ice = bdb_tool_idl_free_list;
+			bdb_tool_idl_free_list = ice->next;
+		}
+		ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+		if ( !ice ) {
+			ice = ch_malloc( sizeof( bdb_tool_idl_cache_entry ));
+		}
+		memset( ice, 0, sizeof( *ice ));
+		if ( !ic->head ) {
+			ic->head = ice;
+		} else {
+			ic->tail->next = ice;
+		}
+		ic->tail = ice;
+		if ( !ic->count )
+			ic->first = id;
+	}
+	ice = ic->tail;
+	ice->ids[ ic->count & (IDBLOCK-1) ] = id;
+	ic->count++;
+
+	return 0;
+}
+#endif
+
+#ifdef USE_TRICKLE
+static void *
+bdb_tool_trickle_task( void *ctx, void *ptr )
+{
+	DB_ENV *env = ptr;
+	int wrote;
+
+	ldap_pvt_thread_mutex_lock( &bdb_tool_trickle_mutex );
+	bdb_tool_trickle_active = 1;
+	ldap_pvt_thread_cond_signal( &bdb_tool_trickle_cond_end );
+	while ( 1 ) {
+		ldap_pvt_thread_cond_wait( &bdb_tool_trickle_cond,
+			&bdb_tool_trickle_mutex );
+		if ( slapd_shutdown )
+			break;
+		env->memp_trickle( env, 30, &wrote );
+	}
+	bdb_tool_trickle_active = 0;
+	ldap_pvt_thread_cond_signal( &bdb_tool_trickle_cond_end );
+	ldap_pvt_thread_mutex_unlock( &bdb_tool_trickle_mutex );
+
+	return NULL;
+}
+#endif
+
+static void *
+bdb_tool_index_task( void *ctx, void *ptr )
+{
+	int base = *(int *)ptr;
+
+	free( ptr );
+	while ( 1 ) {
+		ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+		bdb_tool_index_tcount--;
+		if ( !bdb_tool_index_tcount )
+			ldap_pvt_thread_cond_signal( &bdb_tool_index_cond_main );
+		ldap_pvt_thread_cond_wait( &bdb_tool_index_cond_work,
+			&bdb_tool_index_mutex );
+		if ( slapd_shutdown ) {
+			bdb_tool_index_tcount--;
+			if ( !bdb_tool_index_tcount )
+				ldap_pvt_thread_cond_signal( &bdb_tool_index_cond_main );
+			ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+			break;
+		}
+		ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+
+		bdb_tool_index_threads[base] = bdb_index_recrun( bdb_tool_ix_op,
+			bdb_tool_info, bdb_tool_index_rec, bdb_tool_ix_id, base );
+	}
+
+	return NULL;
+}