git.sur5r.net Git - openldap/blob - servers/slapd/delete.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright (c) 1995 Regents of the University of Michigan.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * provided that this notice is preserved and that due credit is given
  12  * to the University of Michigan at Ann Arbor. The name of the University
  13  * may not be used to endorse or promote products derived from this
  14  * software without specific prior written permission. This software
  15  * is provided ``as is'' without express or implied warranty.
  16  */
  17
  18 #include "portable.h"
  19
  20 #include <stdio.h>
  21
  22 #include <ac/string.h>
  23 #include <ac/socket.h>
  24
  25 #include "ldap_pvt.h"
  26 #include "slap.h"
  27
  28 #ifdef LDAP_SLAPI
  29 #include "slapi.h"
  30 #endif
  31
  32 int
  33 do_delete(
  34     Operation   *op,
  35     SlapReply   *rs
  36 )
  37 {
  38         struct berval dn = { 0, NULL };
  39         int manageDSAit;
  40
  41 #ifdef LDAP_SLAPI
  42         Slapi_PBlock *pb = op->o_pb;
  43 #endif
  44
  45 #ifdef NEW_LOGGING
  46         LDAP_LOG( OPERATION, ENTRY,
  47                 "do_delete: conn %d\n", op->o_connid, 0, 0 );
  48 #else
  49         Debug( LDAP_DEBUG_TRACE, "do_delete\n", 0, 0, 0 );
  50 #endif
  51
  52         /*
  53          * Parse the delete request.  It looks like this:
  54          *
  55          *      DelRequest := DistinguishedName
  56          */
  57
  58         if ( ber_scanf( op->o_ber, "m", &dn ) == LBER_ERROR ) {
  59 #ifdef NEW_LOGGING
  60                 LDAP_LOG( OPERATION, ERR,
  61                         "do_delete: conn: %d  ber_scanf failed\n", op->o_connid, 0, 0 );
  62 #else
  63                 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
  64 #endif
  65                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  66                 return SLAPD_DISCONNECT;
  67         }
  68
  69         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
  70 #ifdef NEW_LOGGING
  71                 LDAP_LOG( OPERATION, ERR,
  72                         "do_delete: conn %d  get_ctrls failed\n", op->o_connid, 0, 0 );
  73 #else
  74                 Debug( LDAP_DEBUG_ANY, "do_delete: get_ctrls failed\n", 0, 0, 0 );
  75 #endif
  76                 goto cleanup;
  77         }
  78
  79         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn, op->o_tmpmemctx );
  80         if( rs->sr_err != LDAP_SUCCESS ) {
  81 #ifdef NEW_LOGGING
  82                 LDAP_LOG( OPERATION, INFO,
  83                         "do_delete: conn %d  invalid dn (%s)\n",
  84                         op->o_connid, dn.bv_val, 0 );
  85 #else
  86                 Debug( LDAP_DEBUG_ANY,
  87                         "do_delete: invalid dn (%s)\n", dn.bv_val, 0, 0 );
  88 #endif
  89                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
  90                 goto cleanup;
  91         }
  92
  93         if( op->o_req_ndn.bv_len == 0 ) {
  94 #ifdef NEW_LOGGING
  95                 LDAP_LOG( OPERATION, INFO,
  96                         "do_delete: conn %d: Attempt to delete root DSE.\n",
  97                         op->o_connid, 0, 0 );
  98 #else
  99                 Debug( LDAP_DEBUG_ANY, "do_delete: root dse!\n", 0, 0, 0 );
 100 #endif
 101                 /* protocolError would likely be a more appropriate error */
 102                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 103                         "cannot delete the root DSE" );
 104                 goto cleanup;
 105
 106         } else if ( bvmatch( &op->o_req_ndn, &global_schemandn ) ) {
 107 #ifdef NEW_LOGGING
 108                 LDAP_LOG( OPERATION, INFO, "do_delete: conn %d: "
 109                         "Attempt to delete subschema subentry.\n", op->o_connid, 0, 0 );
 110 #else
 111                 Debug( LDAP_DEBUG_ANY, "do_delete: subschema subentry!\n", 0, 0, 0 );
 112 #endif
 113                 /* protocolError would likely be a more appropriate error */
 114                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 115                         "cannot delete the root DSE" );
 116                 goto cleanup;
 117         }
 118
 119         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu DEL dn=\"%s\"\n",
 120                 op->o_connid, op->o_opid, op->o_req_dn.bv_val, 0, 0 );
 121
 122         manageDSAit = get_manageDSAit( op );
 123
 124         /*
 125          * We could be serving multiple database backends.  Select the
 126          * appropriate one, or send a referral to our "referral server"
 127          * if we don't hold it.
 128          */
 129         if ( (op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 )) == NULL ) {
 130                 rs->sr_ref = referral_rewrite( default_referral,
 131                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 132
 133                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 134                 if ( rs->sr_ref != NULL ) {
 135                         rs->sr_err = LDAP_REFERRAL;
 136
 137                         send_ldap_result( op, rs );
 138
 139                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 140                 } else {
 141                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 142                                         "referral missing" );
 143                 }
 144                 goto cleanup;
 145         }
 146
 147         /* check restrictions */
 148         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 149                 send_ldap_result( op, rs );
 150                 goto cleanup;
 151         }
 152
 153         /* check for referrals */
 154         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 155                 goto cleanup;
 156         }
 157
 158 #if defined( LDAP_SLAPI )
 159         slapi_x_pblock_set_operation( pb, op );
 160         slapi_pblock_set( pb, SLAPI_DELETE_TARGET, (void *)dn.bv_val );
 161         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 162
 163         rs->sr_err = doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_DELETE_FN, pb );
 164         if ( rs->sr_err < 0 ) {
 165                 /*
 166                  * A preoperation plugin failure will abort the
 167                  * entire operation.
 168                  */
 169 #ifdef NEW_LOGGING
 170                 LDAP_LOG( OPERATION, INFO, "do_delete: delete preoperation plugin "
 171                                 "failed\n", 0, 0, 0 );
 172 #else
 173                 Debug (LDAP_DEBUG_TRACE, "do_delete: delete preoperation plugin failed.\n",
 174                                 0, 0, 0);
 175 #endif
 176                 if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE, (void *)&rs->sr_err ) != 0 )  ||
 177                      rs->sr_err == LDAP_SUCCESS ) {
 178                         rs->sr_err = LDAP_OTHER;
 179                 }
 180                 goto cleanup;
 181         }
 182 #endif /* defined( LDAP_SLAPI ) */
 183
 184         /*
 185          * do the delete if 1 && (2 || 3)
 186          * 1) there is a delete function implemented in this backend;
 187          * 2) this backend is master for what it holds;
 188          * 3) it's a replica and the dn supplied is the update_ndn.
 189          */
 190         if ( op->o_bd->be_delete ) {
 191                 /* do the update here */
 192                 int repl_user = be_isupdate( op->o_bd, &op->o_ndn );
 193 #if defined(LDAP_SYNCREPL) && !defined(SLAPD_MULTIMASTER)
 194                 if ( !op->o_bd->syncinfo && ( !op->o_bd->be_update_ndn.bv_len || repl_user ))
 195 #elif defined(LDAP_SYNCREPL) && defined(SLAPD_MULTIMASTER)
 196                 if ( !op->o_bd->syncinfo )  /* LDAP_SYNCREPL overrides MM */
 197 #elif !defined(LDAP_SYNCREPL) && !defined(SLAPD_MULTIMASTER)
 198                 if ( !op->o_bd->be_update_ndn.bv_len || repl_user )
 199 #endif
 200                 {
 201                         if ( (op->o_bd->be_delete)( op, rs ) == 0 ) {
 202 #ifdef SLAPD_MULTIMASTER
 203                                 if ( !op->o_bd->be_update_ndn.bv_len || !repl_user )
 204 #endif
 205                                 {
 206                                         replog( op );
 207                                 }
 208                         }
 209 #if defined(LDAP_SYNCREPL) || !defined(SLAPD_MULTIMASTER)
 210                 } else {
 211                         BerVarray defref = NULL;
 212 #ifdef LDAP_SYNCREPL
 213                         if ( op->o_bd->syncinfo ) {
 214                                 defref = op->o_bd->syncinfo->master_bv;
 215                         } else
 216 #endif
 217                         {
 218                                 defref = op->o_bd->be_update_refs
 219                                                 ? op->o_bd->be_update_refs : default_referral;
 220                         }
 221                         if ( defref != NULL ) {
 222                                 rs->sr_ref = referral_rewrite( defref,
 223                                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 224                                 if (!rs->sr_ref) rs->sr_ref = defref;
 225                                 rs->sr_err = LDAP_REFERRAL;
 226                                 send_ldap_result( op, rs );
 227
 228                                 if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
 229                         } else {
 230                                 send_ldap_error( op, rs,
 231                                                 LDAP_UNWILLING_TO_PERFORM,
 232                                                 "referral missing" );
 233                         }
 234 #endif
 235                 }
 236
 237         } else {
 238                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 239                         "operation not supported within namingContext" );
 240         }
 241
 242 #if defined( LDAP_SLAPI )
 243         if ( doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_DELETE_FN, pb ) < 0) {
 244 #ifdef NEW_LOGGING
 245                 LDAP_LOG( OPERATION, INFO, "do_delete: delete postoperation plugins "
 246                                 "failed\n", 0, 0, 0 );
 247 #else
 248                 Debug(LDAP_DEBUG_TRACE, "do_delete: delete postoperation plugins "
 249                                 "failed.\n", 0, 0, 0);
 250 #endif
 251         }
 252 #endif /* defined( LDAP_SLAPI ) */
 253
 254 cleanup:
 255         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 256         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 257         return rs->sr_err;
 258 }