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https://git.openldap.org/openldap/openldap.git
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319 lines
6.8 KiB
C
319 lines
6.8 KiB
C
/* add.c - ldap BerkeleyDB back-end add routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 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 "back-bdb.h"
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#include "external.h"
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int
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bdb_add(
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BackendDB *be,
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Connection *conn,
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Operation *op,
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Entry *e )
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{
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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char *pdn = NULL;
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Entry *p = NULL;
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int rc;
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const char *text;
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char textbuf[SLAP_TEXT_BUFLEN];
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size_t textlen = sizeof textbuf;
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AttributeDescription *children = slap_schema.si_ad_children;
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DB_TXN *ltid = NULL;
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struct bdb_op_info opinfo;
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Debug(LDAP_DEBUG_ARGS, "==> bdb_add: %s\n", e->e_dn, 0, 0);
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/* check entry's schema */
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rc = entry_schema_check( e, NULL, &text, textbuf, textlen );
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if ( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_add: entry failed schema check: %s (%d)\n",
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text, rc, 0 );
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goto return_results;
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}
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/*
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* acquire an ID outside of the operation transaction
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* to avoid serializing adds.
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*/
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rc = bdb_next_id( be, NULL, &e->e_id );
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if( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_add: next_id failed (%d)\n",
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rc, 0, 0 );
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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if( 0 ) {
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/* transaction retry */
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retry: rc = txn_abort( ltid );
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ltid = NULL;
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op->o_private = NULL;
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if( rc != 0 ) {
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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}
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/* begin transaction */
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if( bdb->bi_txn ) {
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rc = txn_begin( bdb->bi_dbenv, NULL, <id,
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bdb->bi_db_opflags );
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text = NULL;
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if( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_add: txn_begin failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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}
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opinfo.boi_bdb = be;
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opinfo.boi_txn = ltid;
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opinfo.boi_err = 0;
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op->o_private = &opinfo;
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/*
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* Get the parent dn and see if the corresponding entry exists.
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* If the parent does not exist, only allow the "root" user to
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* add the entry.
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*/
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pdn = dn_parent( be, e->e_ndn );
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if( pdn != NULL && *pdn != '\0' ) {
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Entry *matched = NULL;
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/* get parent */
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rc = bdb_dn2entry( be, ltid, pdn, &p, &matched, 0 );
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switch( rc ) {
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case 0:
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case DB_NOTFOUND:
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break;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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default:
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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if ( p == NULL ) {
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char *matched_dn = NULL;
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struct berval **refs;
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if ( matched != NULL ) {
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matched_dn = ch_strdup( matched->e_dn );
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refs = is_entry_referral( matched )
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? get_entry_referrals( be, conn, op,
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matched, e->e_dn, LDAP_SCOPE_DEFAULT )
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: NULL;
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bdb_entry_return( be, matched );
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matched = NULL;
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} else {
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refs = referral_rewrite( default_referral,
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NULL, e->e_dn, LDAP_SCOPE_DEFAULT );
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}
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Debug( LDAP_DEBUG_TRACE, "bdb_add: parent does not exist\n",
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0, 0, 0 );
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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ber_bvecfree( refs );
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ch_free( matched_dn );
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goto done;
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}
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if ( ! access_allowed( be, conn, op, p,
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children, NULL, ACL_WRITE ) )
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{
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Debug( LDAP_DEBUG_TRACE, "bdb_add: no write access to parent\n",
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0, 0, 0 );
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rc = LDAP_INSUFFICIENT_ACCESS;
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text = "no write access to parent";
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goto return_results;;
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}
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if ( is_entry_alias( p ) ) {
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/* parent is an alias, don't allow add */
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Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is alias\n",
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0, 0, 0 );
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rc = LDAP_ALIAS_PROBLEM;
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text = "parent is an alias";
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goto return_results;;
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}
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if ( is_entry_referral( p ) ) {
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/* parent is a referral, don't allow add */
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char *matched_dn = ch_strdup( p->e_dn );
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struct berval **refs = is_entry_referral( p )
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? get_entry_referrals( be, conn, op, p,
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e->e_dn, LDAP_SCOPE_DEFAULT )
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: NULL;
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Debug( LDAP_DEBUG_TRACE, "bdb_add: parent is referral\n",
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0, 0, 0 );
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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ber_bvecfree( refs );
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free( matched_dn );
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goto done;
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}
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/* free parent and writer lock */
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bdb_entry_return( be, p );
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p = NULL;
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} else {
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/*
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* no parent!
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* must be adding entry to at suffix
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* or with parent ""
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*/
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if ( !be_isroot( be, op->o_ndn )) {
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if ( be_issuffix( be, "" ) || be_isupdate( be, op->o_ndn ) ) {
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p = (Entry *)&slap_entry_root;
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/* check parent for "children" acl */
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rc = access_allowed( be, conn, op, p,
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children, NULL, ACL_WRITE );
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p = NULL;
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if ( ! rc ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_add: no write access to parent\n",
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0, 0, 0 );
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rc = LDAP_INSUFFICIENT_ACCESS;
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text = "no write access to parent";
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goto return_results;;
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}
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} else {
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Debug( LDAP_DEBUG_TRACE, "bdb_add: %s denied\n",
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pdn == NULL ? "suffix" : "entry at root",
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0, 0 );
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rc = LDAP_INSUFFICIENT_ACCESS;
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goto return_results;
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}
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}
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}
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/* dn2id index */
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rc = bdb_dn2id_add( be, ltid, pdn, e );
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if ( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE, "bdb_add: dn2id_add failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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case DB_KEYEXIST:
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rc = LDAP_ALREADY_EXISTS;
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break;
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default:
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rc = LDAP_OTHER;
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}
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goto return_results;
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}
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/* id2entry index */
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rc = bdb_id2entry_add( be, ltid, e );
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if ( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE, "bdb_add: id2entry_add failed\n",
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0, 0, 0 );
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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default:
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rc = LDAP_OTHER;
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}
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text = "entry store failed";
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goto return_results;
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}
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/* attribute indexes */
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rc = bdb_index_entry_add( be, ltid, e, e->e_attrs );
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if ( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_TRACE, "bdb_add: index_entry_add failed\n",
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0, 0, 0 );
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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default:
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rc = LDAP_OTHER;
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}
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text = "index generation failed";
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goto return_results;
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}
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if( bdb->bi_txn ) {
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rc = txn_commit( ltid, 0 );
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}
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ltid = NULL;
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op->o_private = NULL;
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if( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_add: txn_commit failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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rc = LDAP_OTHER;
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text = "commit failed";
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} else {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_add: added id=%08lx dn=\"%s\"\n",
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e->e_id, e->e_dn, 0 );
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rc = LDAP_SUCCESS;
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text = NULL;
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}
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return_results:
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send_ldap_result( conn, op, rc,
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NULL, text, NULL, NULL );
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if( rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
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ldap_pvt_thread_yield();
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TXN_CHECKPOINT( bdb->bi_dbenv,
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bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
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}
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done:
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if (p != NULL) {
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/* free parent and writer lock */
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bdb_entry_return( be, p );
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}
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if( ltid != NULL ) {
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txn_abort( ltid );
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op->o_private = NULL;
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}
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return rc;
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}
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