/* $NetBSD: delete.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $ */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2019 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 * . */ /* Portions Copyright (c) 1995 Regents of the University of Michigan. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that this notice is preserved and that due credit is given * to the University of Michigan at Ann Arbor. The name of the University * may not be used to endorse or promote products derived from this * software without specific prior written permission. This software * is provided ``as is'' without express or implied warranty. */ #include __RCSID("$NetBSD: delete.c,v 1.1.1.6.6.1 2019/08/10 06:17:17 martin Exp $"); #include "portable.h" #include #include #include #include "slap.h" #include "lutil.h" int do_delete( Operation *op, SlapReply *rs ) { struct berval dn = BER_BVNULL; Debug( LDAP_DEBUG_TRACE, "%s do_delete\n", op->o_log_prefix, 0, 0 ); /* * Parse the delete request. It looks like this: * * DelRequest := DistinguishedName */ if ( ber_scanf( op->o_ber, "m", &dn ) == LBER_ERROR ) { Debug( LDAP_DEBUG_ANY, "%s do_delete: ber_scanf failed\n", op->o_log_prefix, 0, 0 ); send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" ); return SLAPD_DISCONNECT; } if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) { Debug( LDAP_DEBUG_ANY, "%s do_delete: get_ctrls failed\n", op->o_log_prefix, 0, 0 ); goto cleanup; } rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx ); if( rs->sr_err != LDAP_SUCCESS ) { Debug( LDAP_DEBUG_ANY, "%s do_delete: invalid dn (%s)\n", op->o_log_prefix, dn.bv_val, 0 ); send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" ); goto cleanup; } Statslog( LDAP_DEBUG_STATS, "%s DEL dn=\"%s\"\n", op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 ); if( op->o_req_ndn.bv_len == 0 ) { Debug( LDAP_DEBUG_ANY, "%s do_delete: root dse!\n", op->o_log_prefix, 0, 0 ); /* protocolError would likely be a more appropriate error */ send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "cannot delete the root DSE" ); goto cleanup; } else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) { Debug( LDAP_DEBUG_ANY, "%s do_delete: subschema subentry!\n", op->o_log_prefix, 0, 0 ); /* protocolError would likely be a more appropriate error */ send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "cannot delete the root DSE" ); goto cleanup; } op->o_bd = frontendDB; rs->sr_err = frontendDB->be_delete( op, rs ); #ifdef LDAP_X_TXN if( rs->sr_err == LDAP_X_TXN_SPECIFY_OKAY ) { /* skip cleanup */ return rs->sr_err; } #endif cleanup:; op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx ); op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx ); return rs->sr_err; } int fe_op_delete( Operation *op, SlapReply *rs ) { struct berval pdn = BER_BVNULL; BackendDB *op_be, *bd = op->o_bd; /* * We could be serving multiple database backends. Select the * appropriate one, or send a referral to our "referral server" * if we don't hold it. */ op->o_bd = select_backend( &op->o_req_ndn, 1 ); if ( op->o_bd == NULL ) { op->o_bd = bd; rs->sr_ref = referral_rewrite( default_referral, NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT ); if (!rs->sr_ref) rs->sr_ref = default_referral; if ( rs->sr_ref != NULL ) { rs->sr_err = LDAP_REFERRAL; send_ldap_result( op, rs ); if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref ); } else { send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "no global superior knowledge" ); } goto cleanup; } /* If we've got a glued backend, check the real backend */ op_be = op->o_bd; if ( SLAP_GLUE_INSTANCE( op->o_bd )) { op->o_bd = select_backend( &op->o_req_ndn, 0 ); } /* check restrictions */ if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) { send_ldap_result( op, rs ); goto cleanup; } /* check for referrals */ if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) { goto cleanup; } /* * do the delete if 1 && (2 || 3) * 1) there is a delete function implemented in this backend; * 2) this backend is master for what it holds; * 3) it's a replica and the dn supplied is the update_ndn. */ if ( op->o_bd->be_delete ) { /* do the update here */ int repl_user = be_isupdate( op ); if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user ) { struct berval org_req_dn = BER_BVNULL; struct berval org_req_ndn = BER_BVNULL; struct berval org_dn = BER_BVNULL; struct berval org_ndn = BER_BVNULL; int org_managedsait; op->o_bd = op_be; op->o_bd->be_delete( op, rs ); org_req_dn = op->o_req_dn; org_req_ndn = op->o_req_ndn; org_dn = op->o_dn; org_ndn = op->o_ndn; org_managedsait = get_manageDSAit( op ); op->o_dn = op->o_bd->be_rootdn; op->o_ndn = op->o_bd->be_rootndn; op->o_managedsait = SLAP_CONTROL_NONCRITICAL; while ( rs->sr_err == LDAP_SUCCESS && op->o_delete_glue_parent ) { op->o_delete_glue_parent = 0; if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) { slap_callback cb = { NULL, NULL, NULL, NULL }; cb.sc_response = slap_null_cb; dnParent( &op->o_req_ndn, &pdn ); op->o_req_dn = pdn; op->o_req_ndn = pdn; op->o_callback = &cb; op->o_bd->be_delete( op, rs ); } else { break; } } op->o_managedsait = org_managedsait; op->o_dn = org_dn; op->o_ndn = org_ndn; op->o_req_dn = org_req_dn; op->o_req_ndn = org_req_ndn; op->o_delete_glue_parent = 0; } else { BerVarray defref = op->o_bd->be_update_refs ? op->o_bd->be_update_refs : default_referral; if ( defref != NULL ) { rs->sr_ref = referral_rewrite( defref, NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT ); if (!rs->sr_ref) rs->sr_ref = defref; rs->sr_err = LDAP_REFERRAL; send_ldap_result( op, rs ); if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref ); } else { send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "shadow context; no update referral" ); } } } else { send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM, "operation not supported within namingContext" ); } cleanup:; op->o_bd = bd; return rs->sr_err; }