/* delete.c - ldbm backend delete routine */ /* $OpenLDAP: pkg/ldap/servers/slapd/back-ldbm/delete.c,v 1.80.2.6 2007/01/02 21:44:02 kurt Exp $ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2007 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 * . */ #include "portable.h" #include #include #include #include "slap.h" #include "back-ldbm.h" #include "proto-back-ldbm.h" #include "lutil.h" int ldbm_back_delete( Operation *op, SlapReply *rs ) { struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private; Entry *matched; struct berval pdn; Entry *e, *p = NULL; int rc = -1; int manageDSAit = get_manageDSAit( op ); AttributeDescription *children = slap_schema.si_ad_children; AttributeDescription *entry = slap_schema.si_ad_entry; Debug(LDAP_DEBUG_ARGS, "==> ldbm_back_delete: %s\n", op->o_req_dn.bv_val, 0, 0); /* grab giant lock for writing */ ldap_pvt_thread_rdwr_wlock(&li->li_giant_rwlock); /* allocate CSN */ if ( BER_BVISEMPTY( &op->o_csn )) { struct berval csn; char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE]; csn.bv_val = csnbuf; csn.bv_len = sizeof(csnbuf); slap_get_csn( op, &csn, 1 ); } /* get entry with writer lock */ e = dn2entry_w( op->o_bd, &op->o_req_ndn, &matched ); /* FIXME : dn2entry() should return non-glue entry */ if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) { Debug(LDAP_DEBUG_ARGS, " op->o_req_dn.bv_val, 0, 0); if ( matched != NULL ) { rs->sr_matched = ch_strdup( matched->e_dn ); rs->sr_ref = is_entry_referral( matched ) ? get_entry_referrals( op, matched ) : NULL; cache_return_entry_r( &li->li_cache, matched ); } else { rs->sr_ref = referral_rewrite( default_referral, NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT ); } rs->sr_err = LDAP_REFERRAL; rs->sr_flags |= REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED; goto return_results; } /* check entry for "entry" acl */ if ( ! access_allowed( op, e, entry, NULL, ACL_WDEL, NULL ) ) { Debug( LDAP_DEBUG_TRACE, " 0, 0 ); rs->sr_err = LDAP_INSUFFICIENT_ACCESS; rs->sr_text = "no write access to entry"; goto return_results; } if ( !manageDSAit && is_entry_referral( e ) ) { /* parent is a referral, don't allow add */ /* parent is an alias, don't allow add */ rs->sr_ref = get_entry_referrals( op, e ); Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 ); rs->sr_err = LDAP_REFERRAL; rs->sr_matched = ch_strdup( e->e_name.bv_val ); rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED; goto return_results; } if ( has_children( op->o_bd, e ) ) { Debug(LDAP_DEBUG_ARGS, " op->o_req_dn.bv_val, 0, 0); rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF; rs->sr_text = "subordinate objects must be deleted first"; goto return_results; } /* delete from parent's id2children entry */ if( !be_issuffix( op->o_bd, &e->e_nname ) && (dnParent( &e->e_nname, &pdn ), pdn.bv_len) ) { if( (p = dn2entry_w( op->o_bd, &pdn, NULL )) == NULL) { Debug( LDAP_DEBUG_TRACE, " 0, 0, 0); rs->sr_err = LDAP_OTHER; rs->sr_text = "could not locate parent of entry"; goto return_results; } /* check parent for "children" acl */ if ( ! access_allowed( op, p, children, NULL, ACL_WDEL, NULL ) ) { Debug( LDAP_DEBUG_TRACE, " 0, 0 ); rs->sr_err = LDAP_INSUFFICIENT_ACCESS; rs->sr_text = "no write access to parent"; goto return_results; } } else { /* no parent, must be root to delete */ if( ! be_isroot( op ) ) { if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv ) || be_shadow_update( op ) ) { p = (Entry *)&slap_entry_root; rc = access_allowed( op, p, children, NULL, ACL_WDEL, NULL ); p = NULL; /* check parent for "children" acl */ if ( ! rc ) { Debug( LDAP_DEBUG_TRACE, " "access to parent\n", 0, 0, 0 ); rs->sr_err = LDAP_INSUFFICIENT_ACCESS; rs->sr_text = "no write access to parent"; goto return_results; } } else { Debug( LDAP_DEBUG_TRACE, " "not root\n", 0, 0, 0); rs->sr_err = LDAP_INSUFFICIENT_ACCESS; goto return_results; } } } /* delete from dn2id mapping */ if ( dn2id_delete( op->o_bd, &e->e_nname, e->e_id ) != 0 ) { Debug(LDAP_DEBUG_ARGS, " op->o_req_dn.bv_val, 0, 0); rs->sr_err = LDAP_OTHER; rs->sr_text = "DN index delete failed"; goto return_results; } /* delete from disk and cache */ if ( id2entry_delete( op->o_bd, e ) != 0 ) { Debug(LDAP_DEBUG_ARGS, " op->o_req_dn.bv_val, 0, 0); rs->sr_err = LDAP_OTHER; rs->sr_text = "entry delete failed"; goto return_results; } /* delete attribute indices */ (void) index_entry_del( op, e ); rs->sr_err = LDAP_SUCCESS; return_results:; rc = rs->sr_err; if( p != NULL ) { /* free parent and writer lock */ cache_return_entry_w( &li->li_cache, p ); } if ( e != NULL ) { /* free entry and writer lock */ cache_return_entry_w( &li->li_cache, e ); } ldap_pvt_thread_rdwr_wunlock(&li->li_giant_rwlock); send_ldap_result( op, rs ); slap_graduate_commit_csn( op ); return rc; }
