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https://git.openldap.org/openldap/openldap.git
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281 lines
6.8 KiB
C
281 lines
6.8 KiB
C
/* delete.c - ldbm backend delete routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2003 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-ldbm.h"
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#include "proto-back-ldbm.h"
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int
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ldbm_back_delete(
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Backend *be,
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Connection *conn,
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Operation *op,
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struct berval *dn,
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struct berval *ndn
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)
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{
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struct ldbminfo *li = (struct ldbminfo *) be->be_private;
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Entry *matched;
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struct berval pdn;
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Entry *e, *p = NULL;
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int rc = -1;
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int manageDSAit = get_manageDSAit( op );
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AttributeDescription *children = slap_schema.si_ad_children;
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AttributeDescription *entry = slap_schema.si_ad_entry;
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ENTRY, "ldbm_back_delete: %s\n", dn->bv_val, 0, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_delete: %s\n", dn->bv_val, 0, 0);
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#endif
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/* grab giant lock for writing */
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ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock);
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/* get entry with writer lock */
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if ( (e = dn2entry_w( be, ndn, &matched )) == NULL ) {
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char *matched_dn = NULL;
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BerVarray refs;
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, INFO,
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"ldbm_back_delete: no such object %s\n", dn->bv_val, 0, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS, "<=- ldbm_back_delete: no such object %s\n",
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dn->bv_val, 0, 0);
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#endif
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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, matched )
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: NULL;
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cache_return_entry_r( &li->li_cache, matched );
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} else {
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refs = referral_rewrite( default_referral,
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NULL, dn, LDAP_SCOPE_DEFAULT );
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}
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ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
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send_ldap_result( conn, op, LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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if ( refs ) ber_bvarray_free( refs );
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free( matched_dn );
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return( -1 );
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}
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/* check entry for "entry" acl */
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#ifdef LDAP_CACHING
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if( !op->o_caching_on ) {
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#endif /* LDAP_CACHING */
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if ( ! access_allowed( be, conn, op, e,
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entry, NULL, ACL_WRITE, NULL ) )
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{
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: no write access to entry of (%s)\n",
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dn->bv_val, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- ldbm_back_delete: no write access to entry\n", 0,
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0, 0 );
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#endif
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, "no write access to entry", NULL, NULL );
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rc = 1;
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goto return_results;
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}
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if ( !manageDSAit && is_entry_referral( e ) ) {
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/* parent is a referral, don't allow add */
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/* parent is an alias, don't allow add */
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BerVarray refs = get_entry_referrals( be,
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conn, op, e );
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, INFO,
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"ldbm_back_delete: entry (%s) is a referral.\n", e->e_dn, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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#endif
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send_ldap_result( conn, op, LDAP_REFERRAL,
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e->e_dn, NULL, refs, NULL );
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if ( refs ) ber_bvarray_free( refs );
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rc = 1;
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goto return_results;
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}
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if ( has_children( be, e ) ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: (%s) is a non-leaf node.\n", dn->bv_val, 0,0);
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#else
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Debug(LDAP_DEBUG_ARGS, "<=- ldbm_back_delete: non leaf %s\n",
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dn->bv_val, 0, 0);
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#endif
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send_ldap_result( conn, op, LDAP_NOT_ALLOWED_ON_NONLEAF,
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NULL, "subtree delete not supported", NULL, NULL );
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goto return_results;
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}
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/* delete from parent's id2children entry */
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if( !be_issuffix( be, &e->e_nname ) && (dnParent( &e->e_nname, &pdn ),
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pdn.bv_len) ) {
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if( (p = dn2entry_w( be, &pdn, NULL )) == NULL) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: parent of (%s) does not exist\n", dn, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- ldbm_back_delete: parent does not exist\n",
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0, 0, 0);
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#endif
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send_ldap_result( conn, op, LDAP_OTHER,
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NULL, "could not locate parent of entry", NULL, NULL );
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goto return_results;
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}
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/* check parent for "children" acl */
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if ( ! access_allowed( be, conn, op, p,
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children, NULL, ACL_WRITE, NULL ) )
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{
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: no access to parent of (%s)\n",
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dn->bv_val, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- ldbm_back_delete: no access to parent\n", 0,
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0, 0 );
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#endif
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, "no write access to parent", NULL, NULL );
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goto return_results;
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}
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} else {
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/* no parent, must be root to delete */
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if( ! be_isroot( be, &op->o_ndn ) ) {
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if ( be_issuffix( be, (struct berval *)&slap_empty_bv ) || be_isupdate( be, &op->o_ndn ) ) {
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p = (Entry *)&slap_entry_root;
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rc = access_allowed( be, conn, op, p,
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children, NULL, ACL_WRITE, NULL );
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p = NULL;
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/* check parent for "children" acl */
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if ( ! rc ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: no access "
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"to parent of ("")\n", 0, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- ldbm_back_delete: no "
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"access to parent\n", 0, 0, 0 );
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#endif
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, "no write access to parent", NULL, NULL );
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goto return_results;
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}
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} else {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: (%s) has no "
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"parent & not a root.\n", dn, 0, 0 );
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#else
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Debug( LDAP_DEBUG_TRACE,
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"<=- ldbm_back_delete: no parent & "
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"not root\n", 0, 0, 0);
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#endif
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send_ldap_result( conn, op,
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LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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}
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}
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#ifdef LDAP_CACHING
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}
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#endif /* LDAP_CACHING */
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/* delete from dn2id mapping */
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if ( dn2id_delete( be, &e->e_nname, e->e_id ) != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: (%s) operations error\n", dn->bv_val, 0, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS,
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"<=- ldbm_back_delete: operations error %s\n",
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dn->bv_val, 0, 0);
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#endif
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send_ldap_result( conn, op, LDAP_OTHER,
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NULL, "DN index delete failed", NULL, NULL );
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goto return_results;
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}
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/* delete from disk and cache */
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if ( id2entry_delete( be, e ) != 0 ) {
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#ifdef NEW_LOGGING
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LDAP_LOG( BACK_LDBM, ERR,
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"ldbm_back_delete: (%s) operations error\n", dn->bv_val, 0, 0 );
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#else
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Debug(LDAP_DEBUG_ARGS,
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"<=- ldbm_back_delete: operations error %s\n",
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dn->bv_val, 0, 0);
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#endif
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send_ldap_result( conn, op, LDAP_OTHER,
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NULL, "entry delete failed", NULL, NULL );
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goto return_results;
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}
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/* delete attribute indices */
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(void) index_entry_del( be, e, e->e_attrs );
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send_ldap_result( conn, op, LDAP_SUCCESS,
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NULL, NULL, NULL, NULL );
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rc = 0;
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return_results:;
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if( p != NULL ) {
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/* free parent and writer lock */
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cache_return_entry_w( &li->li_cache, p );
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}
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/* free entry and writer lock */
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cache_return_entry_w( &li->li_cache, e );
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ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock);
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return rc;
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}
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