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