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

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2004 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  16  * All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms are permitted
  19  * provided that this notice is preserved and that due credit is given
  20  * to the University of Michigan at Ann Arbor. The name of the University
  21  * may not be used to endorse or promote products derived from this
  22  * software without specific prior written permission. This software
  23  * is provided ``as is'' without express or implied warranty.
  24  */
  25
  26 #include "portable.h"
  27
  28 #include <stdio.h>
  29
  30 #include <ac/socket.h>
  31 #include <ac/string.h>
  32 #include <ac/time.h>
  33
  34 #include "ldap_pvt.h"
  35 #include "slap.h"
  36 #ifdef LDAP_SLAPI
  37 #include "slapi/slapi.h"
  38 #endif
  39 #include "lutil.h"
  40
  41
  42 int
  43 do_modify(
  44     Operation   *op,
  45     SlapReply   *rs )
  46 {
  47         struct berval dn = BER_BVNULL;
  48         char            *last;
  49         ber_tag_t       tag;
  50         ber_len_t       len;
  51         Modifications   *modlist = NULL;
  52         Modifications   **modtail = &modlist;
  53 #ifdef LDAP_DEBUG
  54         Modifications *tmp;
  55 #endif
  56 #ifdef LDAP_SLAPI
  57         LDAPMod         **modv = NULL;
  58 #endif
  59         int manageDSAit;
  60         int increment = 0;
  61
  62 #ifdef NEW_LOGGING
  63         LDAP_LOG( OPERATION, ENTRY, "do_modify: enter\n", 0, 0, 0 );
  64 #else
  65         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  66 #endif
  67
  68         /*
  69          * Parse the modify request.  It looks like this:
  70          *
  71          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  72          *              name    DistinguishedName,
  73          *              mods    SEQUENCE OF SEQUENCE {
  74          *                      operation       ENUMERATED {
  75          *                              add     (0),
  76          *                              delete  (1),
  77          *                              replace (2)
  78          *                      },
  79          *                      modification    SEQUENCE {
  80          *                              type    AttributeType,
  81          *                              values  SET OF AttributeValue
  82          *                      }
  83          *              }
  84          *      }
  85          */
  86
  87         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  88 #ifdef NEW_LOGGING
  89                 LDAP_LOG( OPERATION, ERR, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  90 #else
  91                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  92 #endif
  93
  94                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  95                 return SLAPD_DISCONNECT;
  96         }
  97
  98 #ifdef NEW_LOGGING
  99         LDAP_LOG( OPERATION, ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
 100 #else
 101         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
 102 #endif
 103
 104         /* collect modifications & save for later */
 105         for ( tag = ber_first_element( op->o_ber, &len, &last );
 106             tag != LBER_DEFAULT;
 107             tag = ber_next_element( op->o_ber, &len, last ) )
 108         {
 109                 ber_int_t mop;
 110                 Modifications tmp, *mod;
 111
 112                 tmp.sml_nvalues = NULL;
 113
 114                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 115                     &tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
 116                 {
 117                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR,
 118                                 "decoding modlist error" );
 119                         rs->sr_err = SLAPD_DISCONNECT;
 120                         goto cleanup;
 121                 }
 122
 123                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 124                 mod->sml_op = mop;
 125                 mod->sml_type = tmp.sml_type;
 126                 mod->sml_values = tmp.sml_values;
 127                 mod->sml_nvalues = NULL;
 128                 mod->sml_desc = NULL;
 129                 mod->sml_next = NULL;
 130                 *modtail = mod;
 131
 132                 switch( mop ) {
 133                 case LDAP_MOD_ADD:
 134                         if ( mod->sml_values == NULL ) {
 135 #ifdef NEW_LOGGING
 136                                 LDAP_LOG( OPERATION, ERR,
 137                                         "do_modify: modify/add operation (%ld) requires values\n",
 138                                         (long)mop, 0, 0 );
 139 #else
 140                                 Debug( LDAP_DEBUG_ANY,
 141                                         "do_modify: modify/add operation (%ld) requires values\n",
 142                                         (long) mop, 0, 0 );
 143 #endif
 144
 145                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 146                                         "modify/add operation requires values" );
 147                                 goto cleanup;
 148                         }
 149
 150                         /* fall through */
 151
 152                 case LDAP_MOD_DELETE:
 153                 case LDAP_MOD_REPLACE:
 154                         break;
 155
 156                 case LDAP_MOD_INCREMENT:
 157                         if( op->o_protocol >= LDAP_VERSION3 ) {
 158                                 increment++;
 159                                 if ( mod->sml_values == NULL ) {
 160 #ifdef NEW_LOGGING
 161                                         LDAP_LOG( OPERATION, ERR, "do_modify: "
 162                                                 "modify/increment operation (%ld) requires value\n",
 163                                                 (long)mop, 0, 0 );
 164 #else
 165                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 166                                                 "modify/increment operation (%ld) requires value\n",
 167                                                 (long) mop, 0, 0 );
 168 #endif
 169
 170                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 171                                                 "modify/increment operation requires value" );
 172                                         goto cleanup;
 173                                 }
 174
 175                                 if( mod->sml_values[1].bv_val ) {
 176 #ifdef NEW_LOGGING
 177                                         LDAP_LOG( OPERATION, ERR, "do_modify: modify/increment "
 178                                                 "operation (%ld) requires single value\n",
 179                                                 (long)mop, 0, 0 );
 180 #else
 181                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 182                                                 "operation (%ld) requires single value\n",
 183                                                 (long) mop, 0, 0 );
 184 #endif
 185
 186                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 187                                                 "modify/increment operation requires single value" );
 188                                         goto cleanup;
 189                                 }
 190
 191                                 break;
 192                         }
 193                         /* fall thru */
 194
 195                 default: {
 196 #ifdef NEW_LOGGING
 197                                 LDAP_LOG( OPERATION, ERR,
 198                                         "do_modify: unrecognized modify operation (%ld)\n",
 199                                         (long)mop, 0, 0 );
 200 #else
 201                                 Debug( LDAP_DEBUG_ANY,
 202                                         "do_modify: unrecognized modify operation (%ld)\n",
 203                                         (long) mop, 0, 0 );
 204 #endif
 205
 206                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 207                                         "unrecognized modify operation" );
 208                                 goto cleanup;
 209                         }
 210                 }
 211
 212                 modtail = &mod->sml_next;
 213         }
 214         *modtail = NULL;
 215
 216         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 217 #ifdef NEW_LOGGING
 218                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 219 #else
 220                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 221 #endif
 222
 223                 goto cleanup;
 224         }
 225
 226         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 227                 op->o_tmpmemctx );
 228         if( rs->sr_err != LDAP_SUCCESS ) {
 229 #ifdef NEW_LOGGING
 230                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 231                         op->o_connid, dn.bv_val, 0 );
 232 #else
 233                 Debug( LDAP_DEBUG_ANY,
 234                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 235 #endif
 236                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 237                 goto cleanup;
 238         }
 239
 240         if( op->o_req_ndn.bv_len == 0 ) {
 241 #ifdef NEW_LOGGING
 242                 LDAP_LOG( OPERATION, ERR,
 243                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 244 #else
 245                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 246 #endif
 247
 248                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 249                         "modify upon the root DSE not supported" );
 250                 goto cleanup;
 251
 252         } else if ( bvmatch( &op->o_req_ndn, &global_schemandn ) ) {
 253 #ifdef NEW_LOGGING
 254                 LDAP_LOG( OPERATION, ERR,
 255                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 256 #else
 257                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 258 #endif
 259
 260                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 261                         "modification of subschema subentry not supported" );
 262                 goto cleanup;
 263         }
 264
 265 #ifdef LDAP_DEBUG
 266 #ifdef NEW_LOGGING
 267         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 268 #else
 269         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 270 #endif
 271
 272         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 273 #ifdef NEW_LOGGING
 274                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 275                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 276                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 277                                         (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 278                                                 "replace")), tmp->sml_type.bv_val, 0 );
 279
 280                 if ( tmp->sml_values == NULL ) {
 281                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 282                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 283                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 284                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 285                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 286                 } else {
 287                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 288                 }
 289
 290 #else
 291                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 292                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 293                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 294                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 295                                         "replace")), tmp->sml_type.bv_val, 0 );
 296
 297                 if ( tmp->sml_values == NULL ) {
 298                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 299                            "\t\tno values", NULL, NULL );
 300                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 301                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 302                            "\t\tzero values", NULL, NULL );
 303                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 304                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 305                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 306                 } else {
 307                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 308                            "\t\tmultiple values", NULL, NULL );
 309                 }
 310 #endif
 311         }
 312
 313         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 314                 char abuf[BUFSIZ/2], *ptr = abuf;
 315                 int len = 0;
 316
 317                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 318                         op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 319
 320                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 321                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 322                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 323                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 324
 325                         len = 0;
 326                                 ptr = abuf;
 327
 328                                 if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 329                                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 330                                                 op->o_connid, op->o_opid, tmp->sml_type.bv_val, 0, 0 );
 331                                         continue;
 332                                 }
 333                         }
 334                         if (len) {
 335                                 *ptr++ = ' ';
 336                                 len++;
 337                         }
 338                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 339                         len += tmp->sml_type.bv_len;
 340                 }
 341                 if (len) {
 342                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 343                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 344                 }
 345         }
 346 #endif  /* LDAP_DEBUG */
 347
 348         manageDSAit = get_manageDSAit( op );
 349
 350         /*
 351          * We could be serving multiple database backends.  Select the
 352          * appropriate one, or send a referral to our "referral server"
 353          * if we don't hold it.
 354          */
 355         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 356         if ( op->o_bd == NULL ) {
 357                 rs->sr_ref = referral_rewrite( default_referral,
 358                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 359                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 360
 361                 if (rs->sr_ref != NULL ) {
 362                         rs->sr_err = LDAP_REFERRAL;
 363                         send_ldap_result( op, rs );
 364
 365                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 366                 } else {
 367                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 368                                 "no global superior knowledge" );
 369                 }
 370                 goto cleanup;
 371         }
 372
 373         /* check restrictions */
 374         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 375                 send_ldap_result( op, rs );
 376                 goto cleanup;
 377         }
 378
 379         /* check for referrals */
 380         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 381                 goto cleanup;
 382         }
 383
 384         /* check for modify/increment support */
 385         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 386                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 387                         "modify/increment not supported in context" );
 388         }
 389
 390 #if defined( LDAP_SLAPI )
 391 #define pb      op->o_pb
 392         if ( pb ) {
 393                 slapi_int_pblock_set_operation( pb, op );
 394                 slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)dn.bv_val );
 395                 slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 396                 modv = slapi_int_modifications2ldapmods( &modlist );
 397                 slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 398
 399                 rs->sr_err = slapi_int_call_plugins( op->o_bd,
 400                         SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 401                 if ( rs->sr_err < 0 ) {
 402                         /*
 403                          * A preoperation plugin failure will abort the
 404                          * entire operation.
 405                          */
 406 #ifdef NEW_LOGGING
 407                         LDAP_LOG( OPERATION, INFO,
 408                                 "do_modify: modify preoperation plugin failed\n",
 409                                 0, 0, 0 );
 410 #else
 411                         Debug(LDAP_DEBUG_TRACE,
 412                                 "do_modify: modify preoperation plugin failed.\n",
 413                                 0, 0, 0);
 414 #endif
 415                         if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
 416                                 (void *)&rs->sr_err ) != 0 ) || rs->sr_err == LDAP_SUCCESS )
 417                         {
 418                                 rs->sr_err = LDAP_OTHER;
 419                         }
 420                         slapi_int_free_ldapmods( modv );
 421                         modv = NULL;
 422                         goto cleanup;
 423                 }
 424
 425                 /*
 426                  * It's possible that the preoperation plugin changed the
 427                  * modification array, so we need to convert it back to
 428                  * a Modification list.
 429                  *
 430                  * Calling slapi_int_modifications2ldapmods() destroyed modlist so
 431                  * we don't need to free it.
 432                  */
 433                 slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 434                 modlist = slapi_int_ldapmods2modifications( modv );
 435         }
 436
 437         /*
 438          * NB: it is valid for the plugin to return no modifications
 439          * (for example, a plugin might store some attributes elsewhere
 440          * and remove them from the modification list; if only those
 441          * attribute types were included in the modification request,
 442          * then slapi_int_ldapmods2modifications() above will return
 443          * NULL).
 444          *
 445          * However, the post-operation plugin should still be
 446          * called.
 447          */
 448         if ( modlist == NULL ) {
 449                 rs->sr_err = LDAP_SUCCESS;
 450                 send_ldap_result( op, rs );
 451         } else {
 452 #endif /* defined( LDAP_SLAPI ) */
 453
 454         /*
 455          * do the modify if 1 && (2 || 3)
 456          * 1) there is a modify function implemented in this backend;
 457          * 2) this backend is master for what it holds;
 458          * 3) it's a replica and the dn supplied is the update_ndn.
 459          */
 460         if ( op->o_bd->be_modify ) {
 461                 /* do the update here */
 462                 int repl_user = be_isupdate( op );
 463
 464                 /* Multimaster slapd does not have to check for replicator dn
 465                  * because it accepts each modify request
 466                  */
 467 #ifndef SLAPD_MULTIMASTER
 468                 if ( !SLAP_SHADOW(op->o_bd) || repl_user )
 469 #endif
 470                 {
 471                         int update = op->o_bd->be_update_ndn.bv_len;
 472                         char textbuf[SLAP_TEXT_BUFLEN];
 473                         size_t textlen = sizeof textbuf;
 474                         slap_callback cb = { NULL, slap_replog_cb, NULL, NULL };
 475
 476                         rs->sr_err = slap_mods_check( modlist, update, &rs->sr_text,
 477                                 textbuf, textlen, NULL );
 478
 479                         if( rs->sr_err != LDAP_SUCCESS ) {
 480                                 send_ldap_result( op, rs );
 481                                 goto cleanup;
 482                         }
 483
 484                         if ( !repl_user ) {
 485                                 for( modtail = &modlist;
 486                                         *modtail != NULL;
 487                                         modtail = &(*modtail)->sml_next )
 488                                 {
 489                                         /* empty */
 490                                 }
 491
 492                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 493                                         &rs->sr_text, textbuf, textlen );
 494                                 if( rs->sr_err != LDAP_SUCCESS ) {
 495                                         send_ldap_result( op, rs );
 496                                         goto cleanup;
 497                                 }
 498                         }
 499
 500                         op->orm_modlist = modlist;
 501 #ifdef SLAPD_MULTIMASTER
 502                         if ( !repl_user )
 503 #endif
 504                         {
 505                                 /* but we log only the ones not from a replicator user */
 506                                 cb.sc_next = op->o_callback;
 507                                 op->o_callback = &cb;
 508                         }
 509                         op->o_bd->be_modify( op, rs );
 510
 511 #ifndef SLAPD_MULTIMASTER
 512                 /* send a referral */
 513                 } else {
 514                         BerVarray defref = op->o_bd->be_update_refs
 515                                 ? op->o_bd->be_update_refs : default_referral;
 516                         if ( defref != NULL ) {
 517                                 rs->sr_ref = referral_rewrite( defref,
 518                                         NULL, &op->o_req_dn,
 519                                         LDAP_SCOPE_DEFAULT );
 520                                 if (!rs->sr_ref) rs->sr_ref = defref;
 521                                 rs->sr_err = LDAP_REFERRAL;
 522                                 send_ldap_result( op, rs );
 523                                 if (rs->sr_ref != defref) {
 524                                         ber_bvarray_free( rs->sr_ref );
 525                                 }
 526                         } else {
 527                                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 528                                         "shadow context; no update referral" );
 529                         }
 530 #endif
 531                 }
 532         } else {
 533                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 534                     "operation not supported within namingContext" );
 535         }
 536
 537 #if defined( LDAP_SLAPI )
 538         } /* modlist != NULL */
 539
 540         if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
 541                 SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 )
 542         {
 543 #ifdef NEW_LOGGING
 544                 LDAP_LOG( OPERATION, INFO,
 545                         "do_modify: modify postoperation plugins failed\n", 0, 0, 0 );
 546 #else
 547                 Debug(LDAP_DEBUG_TRACE,
 548                         "do_modify: modify postoperation plugins failed.\n", 0, 0, 0);
 549 #endif
 550         }
 551 #endif /* defined( LDAP_SLAPI ) */
 552
 553 cleanup:
 554         slap_graduate_commit_csn( op );
 555
 556         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 557         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 558         if ( modlist != NULL ) slap_mods_free( modlist );
 559 #if defined( LDAP_SLAPI )
 560         if ( modv != NULL ) slapi_int_free_ldapmods( modv );
 561 #endif
 562         return rs->sr_err;
 563 }
 564
 565 /*
 566  * Do basic attribute type checking and syntax validation.
 567  */
 568 int slap_mods_check(
 569         Modifications *ml,
 570         int update,
 571         const char **text,
 572         char *textbuf,
 573         size_t textlen,
 574         void *ctx )
 575 {
 576         int rc;
 577
 578         for( ; ml != NULL; ml = ml->sml_next ) {
 579                 AttributeDescription *ad = NULL;
 580
 581                 /* convert to attribute description */
 582                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 583
 584                 if( rc != LDAP_SUCCESS ) {
 585                         snprintf( textbuf, textlen, "%s: %s",
 586                                 ml->sml_type.bv_val, *text );
 587                         *text = textbuf;
 588                         return rc;
 589                 }
 590
 591                 ad = ml->sml_desc;
 592
 593                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 594                         && !slap_ad_is_binary( ad ))
 595                 {
 596                         /* attribute requires binary transfer */
 597                         snprintf( textbuf, textlen,
 598                                 "%s: requires ;binary transfer",
 599                                 ml->sml_type.bv_val );
 600                         *text = textbuf;
 601                         return LDAP_UNDEFINED_TYPE;
 602                 }
 603
 604                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 605                         && slap_ad_is_binary( ad ))
 606                 {
 607                         /* attribute does not require binary transfer */
 608                         snprintf( textbuf, textlen,
 609                                 "%s: disallows ;binary transfer",
 610                                 ml->sml_type.bv_val );
 611                         *text = textbuf;
 612                         return LDAP_UNDEFINED_TYPE;
 613                 }
 614
 615                 if( slap_ad_is_tag_range( ad )) {
 616                         /* attribute requires binary transfer */
 617                         snprintf( textbuf, textlen,
 618                                 "%s: inappropriate use of tag range option",
 619                                 ml->sml_type.bv_val );
 620                         *text = textbuf;
 621                         return LDAP_UNDEFINED_TYPE;
 622                 }
 623
 624                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 625                         /* user modification disallowed */
 626                         snprintf( textbuf, textlen,
 627                                 "%s: no user modification allowed",
 628                                 ml->sml_type.bv_val );
 629                         *text = textbuf;
 630                         return LDAP_CONSTRAINT_VIOLATION;
 631                 }
 632
 633                 if ( is_at_obsolete( ad->ad_type ) &&
 634                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 635                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 636                                         ml->sml_values != NULL ))
 637                 {
 638                         /*
 639                          * attribute is obsolete,
 640                          * only allow replace/delete with no values
 641                          */
 642                         snprintf( textbuf, textlen,
 643                                 "%s: attribute is obsolete",
 644                                 ml->sml_type.bv_val );
 645                         *text = textbuf;
 646                         return LDAP_CONSTRAINT_VIOLATION;
 647                 }
 648
 649                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 650 #ifdef SLAPD_REAL_SYNTAX
 651                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 652 #endif
 653                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 654                 {
 655                         /*
 656                          * attribute values must be INTEGER or REAL
 657                          */
 658                         snprintf( textbuf, textlen,
 659                                 "%s: attribute syntax inappropriate for increment",
 660                                 ml->sml_type.bv_val );
 661                         *text = textbuf;
 662                         return LDAP_CONSTRAINT_VIOLATION;
 663                 }
 664
 665                 /*
 666                  * check values
 667                  */
 668                 if( ml->sml_values != NULL ) {
 669                         ber_len_t nvals;
 670                         slap_syntax_validate_func *validate =
 671                                 ad->ad_type->sat_syntax->ssyn_validate;
 672                         slap_syntax_transform_func *pretty =
 673                                 ad->ad_type->sat_syntax->ssyn_pretty;
 674
 675                         if( !pretty && !validate ) {
 676                                 *text = "no validator for syntax";
 677                                 snprintf( textbuf, textlen,
 678                                         "%s: no validator for syntax %s",
 679                                         ml->sml_type.bv_val,
 680                                         ad->ad_type->sat_syntax->ssyn_oid );
 681                                 *text = textbuf;
 682                                 return LDAP_INVALID_SYNTAX;
 683                         }
 684
 685                         /*
 686                          * check that each value is valid per syntax
 687                          *      and pretty if appropriate
 688                          */
 689                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 690                                 struct berval pval;
 691                                 if( pretty ) {
 692                                         rc = pretty( ad->ad_type->sat_syntax,
 693                                                 &ml->sml_values[nvals], &pval, ctx );
 694                                 } else {
 695                                         rc = validate( ad->ad_type->sat_syntax,
 696                                                 &ml->sml_values[nvals] );
 697                                 }
 698
 699                                 if( rc != 0 ) {
 700                                         snprintf( textbuf, textlen,
 701                                                 "%s: value #%ld invalid per syntax",
 702                                                 ml->sml_type.bv_val, (long) nvals );
 703                                         *text = textbuf;
 704                                         return LDAP_INVALID_SYNTAX;
 705                                 }
 706
 707                                 if( pretty ) {
 708                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 709                                         ml->sml_values[nvals] = pval;
 710                                 }
 711                         }
 712
 713                         /*
 714                          * a rough single value check... an additional check is needed
 715                          * to catch add of single value to existing single valued attribute
 716                          */
 717                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 718                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 719                         {
 720                                 snprintf( textbuf, textlen,
 721                                         "%s: multiple values provided",
 722                                         ml->sml_type.bv_val );
 723                                 *text = textbuf;
 724                                 return LDAP_CONSTRAINT_VIOLATION;
 725                         }
 726
 727                         /* if the type has a normalizer, generate the
 728                          * normalized values. otherwise leave them NULL.
 729                          *
 730                          * this is different from the rule for attributes
 731                          * in an entry - in an attribute list, the normalized
 732                          * value is set equal to the non-normalized value
 733                          * when there is no normalizer.
 734                          */
 735                         if( nvals && ad->ad_type->sat_equality &&
 736                                 ad->ad_type->sat_equality->smr_normalize )
 737                         {
 738                                 ml->sml_nvalues = ber_memalloc_x(
 739                                         (nvals+1)*sizeof(struct berval), ctx );
 740
 741                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 742                                         rc = ad->ad_type->sat_equality->smr_normalize(
 743                                                 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 744                                                 ad->ad_type->sat_syntax,
 745                                                 ad->ad_type->sat_equality,
 746                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 747                                         if( rc ) {
 748 #ifdef NEW_LOGGING
 749                                                 LDAP_LOG( OPERATION, DETAIL1,
 750                                                         "str2entry:  NULL (ssyn_normalize %d)\n",
 751                                                         rc, 0, 0 );
 752 #else
 753                                                 Debug( LDAP_DEBUG_ANY,
 754                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 755                                                         rc, 0, 0 );
 756 #endif
 757                                                 snprintf( textbuf, textlen,
 758                                                         "%s: value #%ld normalization failed",
 759                                                         ml->sml_type.bv_val, (long) nvals );
 760                                                 *text = textbuf;
 761                                                 return rc;
 762                                         }
 763                                 }
 764
 765                                 ml->sml_nvalues[nvals].bv_val = NULL;
 766                                 ml->sml_nvalues[nvals].bv_len = 0;
 767                         }
 768
 769                         if( nvals ) {
 770                                 /* check for duplicates */
 771                                 int             i, j;
 772                                 MatchingRule *mr = ad->ad_type->sat_equality;
 773
 774                                 /* check if the values we're adding already exist */
 775                                 if( mr == NULL || !mr->smr_match ) {
 776                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 777                                                 /* test asserted values against themselves */
 778                                                 for( j = 0; j < i; j++ ) {
 779                                                         if ( bvmatch( &ml->sml_values[i],
 780                                                                 &ml->sml_values[j] ) )
 781                                                         {
 782                                                                 /* value exists already */
 783                                                                 snprintf( textbuf, textlen,
 784                                                                         "%s: value #%d provided more than once",
 785                                                                         ml->sml_desc->ad_cname.bv_val, j );
 786                                                                 *text = textbuf;
 787                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 788                                                         }
 789                                                 }
 790                                         }
 791
 792                                 } else {
 793                                         int rc;
 794                                         int match;
 795
 796                                         for ( i = 1; ml->sml_values[i].bv_val != NULL; i++ ) {
 797                                                 /* test asserted values against themselves */
 798                                                 for( j = 0; j < i; j++ ) {
 799                                                         rc = value_match( &match, ml->sml_desc, mr,
 800                                                                 SLAP_MR_EQUALITY
 801                                                                         | SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
 802                                                                         | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
 803                                                                         | SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
 804                                                                 ml->sml_nvalues
 805                                                                         ? &ml->sml_nvalues[i]
 806                                                                         : &ml->sml_values[i],
 807                                                                 ml->sml_nvalues
 808                                                                         ? &ml->sml_nvalues[j]
 809                                                                         : &ml->sml_values[j],
 810                                                                 text );
 811                                                         if ( rc == LDAP_SUCCESS && match == 0 ) {
 812                                                                 /* value exists already */
 813                                                                 snprintf( textbuf, textlen,
 814                                                                         "%s: value #%d provided more than once",
 815                                                                         ml->sml_desc->ad_cname.bv_val, j );
 816                                                                 *text = textbuf;
 817                                                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 818
 819                                                         } else if ( rc != LDAP_SUCCESS ) {
 820                                                                 return rc;
 821                                                         }
 822                                                 }
 823                                         }
 824                                 }
 825                         }
 826
 827                 }
 828         }
 829
 830         return LDAP_SUCCESS;
 831 }
 832
 833 int slap_mods_opattrs(
 834         Operation *op,
 835         Modifications *mods,
 836         Modifications **modtail,
 837         const char **text,
 838         char *textbuf, size_t textlen )
 839 {
 840         struct berval name, timestamp, csn;
 841         struct berval nname;
 842         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 843         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 844         Modifications *mod;
 845
 846         int mop = op->o_tag == LDAP_REQ_ADD
 847                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 848
 849         assert( modtail != NULL );
 850         assert( *modtail == NULL );
 851
 852         if ( SLAP_LASTMOD( op->o_bd )) {
 853                 struct tm *ltm;
 854 #ifdef HAVE_GMTIME_R
 855                 struct tm ltm_buf;
 856 #endif
 857                 time_t now = slap_get_time();
 858
 859 #ifdef HAVE_GMTIME_R
 860                 ltm = gmtime_r( &now, &ltm_buf );
 861 #else
 862                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 863                 ltm = gmtime( &now );
 864 #endif /* HAVE_GMTIME_R */
 865                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 866
 867                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, 1 );
 868
 869 #ifndef HAVE_GMTIME_R
 870                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 871 #endif
 872
 873                 timestamp.bv_val = timebuf;
 874                 timestamp.bv_len = strlen(timebuf);
 875
 876                 if( op->o_dn.bv_len == 0 ) {
 877                         BER_BVSTR( &name, SLAPD_ANONYMOUS );
 878                         nname = name;
 879                 } else {
 880                         name = op->o_dn;
 881                         nname = op->o_ndn;
 882                 }
 883         }
 884
 885         if( op->o_tag == LDAP_REQ_ADD ) {
 886                 struct berval tmpval;
 887
 888                 if( global_schemacheck ) {
 889                         int rc = mods_structural_class( mods, &tmpval,
 890                                 text, textbuf, textlen );
 891                         if( rc != LDAP_SUCCESS ) return rc;
 892
 893                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 894                         mod->sml_op = mop;
 895                         mod->sml_type.bv_val = NULL;
 896                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 897                         mod->sml_values =
 898                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 899                         ber_dupbv( &mod->sml_values[0], &tmpval );
 900                         mod->sml_values[1].bv_len = 0;
 901                         mod->sml_values[1].bv_val = NULL;
 902                         assert( mod->sml_values[0].bv_val );
 903                         mod->sml_nvalues =
 904                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 905                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 906                         mod->sml_nvalues[1].bv_len = 0;
 907                         mod->sml_nvalues[1].bv_val = NULL;
 908                         assert( mod->sml_nvalues[0].bv_val );
 909                         *modtail = mod;
 910                         modtail = &mod->sml_next;
 911                 }
 912
 913                 if ( SLAP_LASTMOD( op->o_bd )) {
 914                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 915
 916                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 917                         tmpval.bv_val = uuidbuf;
 918
 919                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 920                         mod->sml_op = mop;
 921                         mod->sml_type.bv_val = NULL;
 922                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 923                         mod->sml_values =
 924                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 925                         ber_dupbv( &mod->sml_values[0], &tmpval );
 926                         mod->sml_values[1].bv_len = 0;
 927                         mod->sml_values[1].bv_val = NULL;
 928                         assert( mod->sml_values[0].bv_val );
 929                         mod->sml_nvalues =
 930                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 931                         (*mod->sml_desc->ad_type->sat_equality->smr_normalize)(
 932                                         SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
 933                                         mod->sml_desc->ad_type->sat_syntax,
 934                                         mod->sml_desc->ad_type->sat_equality,
 935                                         mod->sml_values, mod->sml_nvalues, NULL );
 936                         mod->sml_nvalues[1].bv_len = 0;
 937                         mod->sml_nvalues[1].bv_val = NULL;
 938                         *modtail = mod;
 939                         modtail = &mod->sml_next;
 940
 941                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 942                         mod->sml_op = mop;
 943                         mod->sml_type.bv_val = NULL;
 944                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 945                         mod->sml_values =
 946                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 947                         ber_dupbv( &mod->sml_values[0], &name );
 948                         mod->sml_values[1].bv_len = 0;
 949                         mod->sml_values[1].bv_val = NULL;
 950                         assert( mod->sml_values[0].bv_val );
 951                         mod->sml_nvalues =
 952                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 953                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 954                         mod->sml_nvalues[1].bv_len = 0;
 955                         mod->sml_nvalues[1].bv_val = NULL;
 956                         assert( mod->sml_nvalues[0].bv_val );
 957                         *modtail = mod;
 958                         modtail = &mod->sml_next;
 959
 960                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 961                         mod->sml_op = mop;
 962                         mod->sml_type.bv_val = NULL;
 963                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 964                         mod->sml_values =
 965                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 966                         ber_dupbv( &mod->sml_values[0], &timestamp );
 967                         mod->sml_values[1].bv_len = 0;
 968                         mod->sml_values[1].bv_val = NULL;
 969                         assert( mod->sml_values[0].bv_val );
 970                         mod->sml_nvalues = NULL;
 971                         *modtail = mod;
 972                         modtail = &mod->sml_next;
 973                 }
 974         }
 975
 976         if ( SLAP_LASTMOD( op->o_bd )) {
 977                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 978                 mod->sml_op = mop;
 979                 mod->sml_type.bv_val = NULL;
 980                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 981                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 982                 ber_dupbv( &mod->sml_values[0], &csn );
 983                 mod->sml_values[1].bv_len = 0;
 984                 mod->sml_values[1].bv_val = NULL;
 985                 assert( mod->sml_values[0].bv_val );
 986                 mod->sml_nvalues = NULL;
 987                 *modtail = mod;
 988                 modtail = &mod->sml_next;
 989
 990                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 991                 mod->sml_op = mop;
 992                 mod->sml_type.bv_val = NULL;
 993                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 994                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 995                 ber_dupbv( &mod->sml_values[0], &name );
 996                 mod->sml_values[1].bv_len = 0;
 997                 mod->sml_values[1].bv_val = NULL;
 998                 assert( mod->sml_values[0].bv_val );
 999                 mod->sml_nvalues =
1000                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1001                 ber_dupbv( &mod->sml_nvalues[0], &nname );
1002                 mod->sml_nvalues[1].bv_len = 0;
1003                 mod->sml_nvalues[1].bv_val = NULL;
1004                 assert( mod->sml_nvalues[0].bv_val );
1005                 *modtail = mod;
1006                 modtail = &mod->sml_next;
1007
1008                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
1009                 mod->sml_op = mop;
1010                 mod->sml_type.bv_val = NULL;
1011                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
1012                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
1013                 ber_dupbv( &mod->sml_values[0], &timestamp );
1014                 mod->sml_values[1].bv_len = 0;
1015                 mod->sml_values[1].bv_val = NULL;
1016                 assert( mod->sml_values[0].bv_val );
1017                 mod->sml_nvalues = NULL;
1018                 *modtail = mod;
1019                 modtail = &mod->sml_next;
1020         }
1021
1022         *modtail = NULL;
1023         return LDAP_SUCCESS;
1024 }
1025