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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright (c) 1995 Regents of the University of Michigan.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * provided that this notice is preserved and that due credit is given
  12  * to the University of Michigan at Ann Arbor. The name of the University
  13  * may not be used to endorse or promote products derived from this
  14  * software without specific prior written permission. This software
  15  * is provided ``as is'' without express or implied warranty.
  16  */
  17
  18 #include "portable.h"
  19
  20 #include <stdio.h>
  21
  22 #include <ac/socket.h>
  23 #include <ac/string.h>
  24 #include <ac/time.h>
  25
  26 #include "ldap_pvt.h"
  27 #include "slap.h"
  28 #ifdef LDAP_SLAPI
  29 #include "slapi.h"
  30 #endif
  31 #include "lutil.h"
  32
  33
  34 int
  35 do_modify(
  36     Connection  *conn,
  37     Operation   *op )
  38 {
  39         struct berval dn = { 0, NULL };
  40         struct berval pdn = { 0, NULL };
  41         struct berval ndn = { 0, NULL };
  42         char            *last;
  43         ber_tag_t       tag;
  44         ber_len_t       len;
  45         Modifications   *modlist = NULL;
  46         Modifications   **modtail = &modlist;
  47 #ifdef LDAP_DEBUG
  48         Modifications *tmp;
  49 #endif
  50 #ifdef LDAP_SLAPI
  51         LDAPMod         **modv = NULL;
  52         Slapi_PBlock *pb = op->o_pb;
  53 #endif
  54         Backend         *be;
  55         int rc;
  56         const char      *text;
  57         int manageDSAit;
  58
  59 #ifdef NEW_LOGGING
  60         LDAP_LOG( OPERATION, ENTRY, "do_modify: enter\n", 0, 0, 0 );
  61 #else
  62         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  63 #endif
  64
  65         /*
  66          * Parse the modify request.  It looks like this:
  67          *
  68          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  69          *              name    DistinguishedName,
  70          *              mods    SEQUENCE OF SEQUENCE {
  71          *                      operation       ENUMERATED {
  72          *                              add     (0),
  73          *                              delete  (1),
  74          *                              replace (2)
  75          *                      },
  76          *                      modification    SEQUENCE {
  77          *                              type    AttributeType,
  78          *                              values  SET OF AttributeValue
  79          *                      }
  80          *              }
  81          *      }
  82          */
  83
  84         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  85 #ifdef NEW_LOGGING
  86                 LDAP_LOG( OPERATION, ERR, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  87 #else
  88                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  89 #endif
  90
  91                 send_ldap_disconnect( conn, op,
  92                         LDAP_PROTOCOL_ERROR, "decoding error" );
  93                 return SLAPD_DISCONNECT;
  94         }
  95
  96 #ifdef NEW_LOGGING
  97         LDAP_LOG( OPERATION, ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  98 #else
  99         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
 100 #endif
 101
 102
 103         /* collect modifications & save for later */
 104
 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
 113                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 114                     &tmp.sml_type, &tmp.sml_bvalues )
 115                     == LBER_ERROR )
 116                 {
 117                         send_ldap_disconnect( conn, op,
 118                                 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
 119                         rc = 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_bvalues = tmp.sml_bvalues;
 127                 mod->sml_desc = NULL;
 128                 mod->sml_next = NULL;
 129                 *modtail = mod;
 130
 131                 switch( mop ) {
 132                 case LDAP_MOD_ADD:
 133                         if ( mod->sml_bvalues == NULL ) {
 134 #ifdef NEW_LOGGING
 135                                 LDAP_LOG( OPERATION, ERR,
 136                                         "do_modify: modify/add operation (%ld) requires values\n",
 137                                         (long)mop, 0, 0 );
 138 #else
 139                                 Debug( LDAP_DEBUG_ANY,
 140                                         "do_modify: modify/add operation (%ld) requires values\n",
 141                                         (long) mop, 0, 0 );
 142 #endif
 143
 144                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 145                                         NULL, "modify/add operation requires values",
 146                                         NULL, NULL );
 147                                 rc = LDAP_PROTOCOL_ERROR;
 148                                 goto cleanup;
 149                         }
 150
 151                         /* fall through */
 152
 153                 case LDAP_MOD_DELETE:
 154                 case LDAP_MOD_REPLACE:
 155                         break;
 156
 157                 default: {
 158 #ifdef NEW_LOGGING
 159                                 LDAP_LOG( OPERATION, ERR,
 160                                         "do_modify: invalid modify operation (%ld)\n", (long)mop, 0, 0 );
 161 #else
 162                                 Debug( LDAP_DEBUG_ANY,
 163                                         "do_modify: invalid modify operation (%ld)\n",
 164                                         (long) mop, 0, 0 );
 165 #endif
 166
 167                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 168                                         NULL, "unrecognized modify operation", NULL, NULL );
 169                                 rc = LDAP_PROTOCOL_ERROR;
 170                                 goto cleanup;
 171                         }
 172                 }
 173
 174                 modtail = &mod->sml_next;
 175         }
 176         *modtail = NULL;
 177
 178         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 179 #ifdef NEW_LOGGING
 180                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 181 #else
 182                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 183 #endif
 184
 185                 goto cleanup;
 186         }
 187
 188         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 189         if( rc != LDAP_SUCCESS ) {
 190 #ifdef NEW_LOGGING
 191                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 192                         conn->c_connid, dn.bv_val, 0 );
 193 #else
 194                 Debug( LDAP_DEBUG_ANY,
 195                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 196 #endif
 197                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 198                     "invalid DN", NULL, NULL );
 199                 goto cleanup;
 200         }
 201
 202         if( ndn.bv_len == 0 ) {
 203 #ifdef NEW_LOGGING
 204                 LDAP_LOG( OPERATION, ERR,
 205                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 206 #else
 207                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 208 #endif
 209
 210                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 211                         NULL, "modify upon the root DSE not supported", NULL, NULL );
 212                 goto cleanup;
 213
 214         } else if ( bvmatch( &ndn, &global_schemandn ) ) {
 215 #ifdef NEW_LOGGING
 216                 LDAP_LOG( OPERATION, ERR,
 217                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 218 #else
 219                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 220 #endif
 221
 222                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 223                         NULL, "modification of subschema subentry not supported",
 224                         NULL, NULL );
 225                 goto cleanup;
 226         }
 227
 228 #ifdef LDAP_DEBUG
 229 #ifdef NEW_LOGGING
 230         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 231 #else
 232         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 233 #endif
 234
 235         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 236 #ifdef NEW_LOGGING
 237                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 238                         tmp->sml_op == LDAP_MOD_ADD ?
 239                         "add" : (tmp->sml_op == LDAP_MOD_DELETE ?
 240                         "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 241
 242                 if ( tmp->sml_bvalues == NULL ) {
 243                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 244                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 245                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 246                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 247                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 248                 } else {
 249                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 250                 }
 251
 252 #else
 253                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 254                         tmp->sml_op == LDAP_MOD_ADD
 255                                 ? "add" : (tmp->sml_op == LDAP_MOD_DELETE
 256                                         ? "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 257
 258                 if ( tmp->sml_bvalues == NULL ) {
 259                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 260                            "\t\tno values", NULL, NULL );
 261                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 262                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 263                            "\t\tzero values", NULL, NULL );
 264                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 265                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 266                            "\t\tone value", (long) tmp->sml_bvalues[0].bv_len, NULL );
 267                 } else {
 268                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 269                            "\t\tmultiple values", NULL, NULL );
 270                 }
 271 #endif
 272         }
 273
 274         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 275                 char abuf[BUFSIZ/2], *ptr = abuf;
 276                 int len = 0;
 277
 278                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 279                         op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 280
 281                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 282                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 283                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 284                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 285                                 len = 0;
 286                                 ptr = abuf;
 287                         }
 288                         if (len) {
 289                                 *ptr++ = ' ';
 290                                 len++;
 291                         }
 292                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 293                         len += tmp->sml_type.bv_len;
 294                 }
 295                 if (len) {
 296                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 297                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 298                 }
 299         }
 300 #endif  /* LDAP_DEBUG */
 301
 302         manageDSAit = get_manageDSAit( op );
 303
 304         /*
 305          * We could be serving multiple database backends.  Select the
 306          * appropriate one, or send a referral to our "referral server"
 307          * if we don't hold it.
 308          */
 309         if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
 310                 BerVarray ref = referral_rewrite( default_referral,
 311                         NULL, &pdn, LDAP_SCOPE_DEFAULT );
 312                 if ( ref == NULL ) ref = default_referral;
 313                 if ( ref != NULL ) {
 314                         send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 315                                 NULL, NULL, ref, NULL );
 316
 317                         if ( ref != default_referral ) ber_bvarray_free( ref );
 318                 } else {
 319                         send_ldap_result( conn, op,
 320                                         rc = LDAP_UNWILLING_TO_PERFORM,
 321                                         NULL, "referral missing", NULL, NULL );
 322                 }
 323                 goto cleanup;
 324         }
 325
 326         /* check restrictions */
 327         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 328         if( rc != LDAP_SUCCESS ) {
 329                 send_ldap_result( conn, op, rc,
 330                         NULL, text, NULL, NULL );
 331                 goto cleanup;
 332         }
 333
 334         /* check for referrals */
 335         rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
 336         if ( rc != LDAP_SUCCESS ) {
 337                 goto cleanup;
 338         }
 339
 340 #if defined( LDAP_SLAPI )
 341         slapi_x_backend_set_pb( pb, be );
 342         slapi_x_connection_set_pb( pb, conn );
 343         slapi_x_operation_set_pb( pb, op );
 344         slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)dn.bv_val );
 345         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 346         modv = slapi_x_modifications2ldapmods( &modlist );
 347         slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 348
 349         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 350         if ( rc != 0 ) {
 351                 /*
 352                  * A preoperation plugin failure will abort the
 353                  * entire operation.
 354                  */
 355 #ifdef NEW_LOGGING
 356                 LDAP_LOG( OPERATION, INFO, "do_modify: modify preoperation plugin "
 357                                 "failed\n", 0, 0, 0 );
 358 #else
 359                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify preoperation plugin failed.\n",
 360                                 0, 0, 0);
 361 #endif
 362                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&rc ) != 0) {
 363                         rc = LDAP_OTHER;
 364                 }
 365                 ldap_mods_free( modv, 1 );
 366                 modv = NULL;
 367                 goto cleanup;
 368         }
 369
 370         /*
 371          * It's possible that the preoperation plugin changed the
 372          * modification array, so we need to convert it back to
 373          * a Modification list.
 374          *
 375          * Calling slapi_x_modifications2ldapmods() destroyed modlist so
 376          * we don't need to free it.
 377          */
 378         slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 379         modlist = slapi_x_ldapmods2modifications( modv );
 380 #endif /* defined( LDAP_SLAPI ) */
 381
 382         /*
 383          * do the modify if 1 && (2 || 3)
 384          * 1) there is a modify function implemented in this backend;
 385          * 2) this backend is master for what it holds;
 386          * 3) it's a replica and the dn supplied is the update_ndn.
 387          */
 388         if ( be->be_modify ) {
 389                 /* do the update here */
 390                 int repl_user = be_isupdate( be, &op->o_ndn );
 391 #ifndef SLAPD_MULTIMASTER
 392                 /* Multimaster slapd does not have to check for replicator dn
 393                  * because it accepts each modify request
 394                  */
 395                 if ( !be->be_update_ndn.bv_len || repl_user )
 396 #endif
 397                 {
 398                         int update = be->be_update_ndn.bv_len;
 399                         const char *text;
 400                         char textbuf[SLAP_TEXT_BUFLEN];
 401                         size_t textlen = sizeof textbuf;
 402                         slap_replog_ctx ctx;
 403                         slap_callback cb = {0};
 404
 405                         rc = slap_mods_check( modlist, update, &text,
 406                                 textbuf, textlen );
 407
 408                         if( rc != LDAP_SUCCESS ) {
 409                                 send_ldap_result( conn, op, rc,
 410                                         NULL, text, NULL, NULL );
 411                                 goto cleanup;
 412                         }
 413
 414                         if ( !repl_user ) {
 415                                 for( modtail = &modlist;
 416                                         *modtail != NULL;
 417                                         modtail = &(*modtail)->sml_next )
 418                                 {
 419                                         /* empty */
 420                                 }
 421
 422                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 423                                         textbuf, textlen );
 424                                 if( rc != LDAP_SUCCESS ) {
 425                                         send_ldap_result( conn, op, rc,
 426                                                 NULL, text,
 427                                                 NULL, NULL );
 428                                         goto cleanup;
 429                                 }
 430                         }
 431
 432 #ifdef SLAPD_MULTIMASTER
 433                         if ( !repl_user )
 434 #endif
 435                         {
 436                                 ctx.prev = op->o_callback;
 437                                 ctx.be = be;
 438                                 ctx.dn = &pdn;
 439                                 ctx.ndn = &ndn;
 440                                 ctx.change = modlist;
 441                                 cb.sc_private = &ctx;
 442                                 cb.sc_response = slap_replog_cb;
 443                                 op->o_callback = &cb;
 444                         }
 445                         rc = (*be->be_modify)( be, conn, op, &pdn, &ndn, modlist );
 446
 447 #ifndef SLAPD_MULTIMASTER
 448                 /* send a referral */
 449                 } else {
 450                         BerVarray defref = be->be_update_refs
 451                                 ? be->be_update_refs : default_referral;
 452                         if ( defref != NULL ) {
 453                                 BerVarray ref = referral_rewrite( defref,
 454                                         NULL, &pdn, LDAP_SCOPE_DEFAULT );
 455
 456                                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 457                                                 NULL, NULL,
 458                                                 ref ? ref : defref, NULL );
 459
 460                                 ber_bvarray_free( ref );
 461                         } else {
 462                                 send_ldap_result( conn, op,
 463                                                 rc = LDAP_UNWILLING_TO_PERFORM,
 464                                                 NULL, "referral missing",
 465                                                 NULL, NULL );
 466                         }
 467 #endif
 468                 }
 469         } else {
 470                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 471                     NULL, "operation not supported within namingContext",
 472                         NULL, NULL );
 473         }
 474
 475 #if defined( LDAP_SLAPI )
 476         if ( doPluginFNs( be, SLAPI_PLUGIN_POST_MODIFY_FN, pb ) != 0 ) {
 477 #ifdef NEW_LOGGING
 478                 LDAP_LOG( OPERATION, INFO, "do_modify: modify postoperation plugins "
 479                                 "failed\n", 0, 0, 0 );
 480 #else
 481                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify postoperation plugins "
 482                                 "failed.\n", 0, 0, 0);
 483 #endif
 484         }
 485 #endif /* defined( LDAP_SLAPI ) */
 486
 487 cleanup:
 488         free( pdn.bv_val );
 489         free( ndn.bv_val );
 490         if ( modlist != NULL ) slap_mods_free( modlist );
 491 #if defined( LDAP_SLAPI )
 492         if ( modv != NULL ) slapi_x_free_ldapmods( modv );
 493 #endif
 494         return rc;
 495 }
 496
 497 /*
 498  * Do basic attribute type checking and syntax validation.
 499  */
 500 int slap_mods_check(
 501         Modifications *ml,
 502         int update,
 503         const char **text,
 504         char *textbuf,
 505         size_t textlen )
 506 {
 507         int rc;
 508
 509         for( ; ml != NULL; ml = ml->sml_next ) {
 510                 AttributeDescription *ad = NULL;
 511
 512                 /* convert to attribute description */
 513                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 514
 515                 if( rc != LDAP_SUCCESS ) {
 516                         snprintf( textbuf, textlen, "%s: %s",
 517                                 ml->sml_type.bv_val, *text );
 518                         *text = textbuf;
 519                         return rc;
 520                 }
 521
 522                 ad = ml->sml_desc;
 523
 524                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 525                         && !slap_ad_is_binary( ad ))
 526                 {
 527                         /* attribute requires binary transfer */
 528                         snprintf( textbuf, textlen,
 529                                 "%s: requires ;binary transfer",
 530                                 ml->sml_type.bv_val );
 531                         *text = textbuf;
 532                         return LDAP_UNDEFINED_TYPE;
 533                 }
 534
 535                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 536                         && slap_ad_is_binary( ad ))
 537                 {
 538                         /* attribute requires binary transfer */
 539                         snprintf( textbuf, textlen,
 540                                 "%s: disallows ;binary transfer",
 541                                 ml->sml_type.bv_val );
 542                         *text = textbuf;
 543                         return LDAP_UNDEFINED_TYPE;
 544                 }
 545
 546                 if( slap_ad_is_tag_range( ad )) {
 547                         /* attribute requires binary transfer */
 548                         snprintf( textbuf, textlen,
 549                                 "%s: inappropriate use of tag range option",
 550                                 ml->sml_type.bv_val );
 551                         *text = textbuf;
 552                         return LDAP_UNDEFINED_TYPE;
 553                 }
 554
 555                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 556                         /* user modification disallowed */
 557                         snprintf( textbuf, textlen,
 558                                 "%s: no user modification allowed",
 559                                 ml->sml_type.bv_val );
 560                         *text = textbuf;
 561                         return LDAP_CONSTRAINT_VIOLATION;
 562                 }
 563
 564                 if ( is_at_obsolete( ad->ad_type ) &&
 565                         ( ml->sml_op == LDAP_MOD_ADD || ml->sml_bvalues != NULL ) )
 566                 {
 567                         /*
 568                          * attribute is obsolete,
 569                          * only allow replace/delete with no values
 570                          */
 571                         snprintf( textbuf, textlen,
 572                                 "%s: attribute is obsolete",
 573                                 ml->sml_type.bv_val );
 574                         *text = textbuf;
 575                         return LDAP_CONSTRAINT_VIOLATION;
 576                 }
 577
 578                 /*
 579                  * check values
 580                  */
 581                 if( ml->sml_bvalues != NULL ) {
 582                         ber_len_t nvals;
 583                         slap_syntax_validate_func *validate =
 584                                 ad->ad_type->sat_syntax->ssyn_validate;
 585                         slap_syntax_transform_func *pretty =
 586                                 ad->ad_type->sat_syntax->ssyn_pretty;
 587
 588                         if( !pretty && !validate ) {
 589                                 *text = "no validator for syntax";
 590                                 snprintf( textbuf, textlen,
 591                                         "%s: no validator for syntax %s",
 592                                         ml->sml_type.bv_val,
 593                                         ad->ad_type->sat_syntax->ssyn_oid );
 594                                 *text = textbuf;
 595                                 return LDAP_INVALID_SYNTAX;
 596                         }
 597
 598                         /*
 599                          * check that each value is valid per syntax
 600                          *      and pretty if appropriate
 601                          */
 602                         for( nvals = 0; ml->sml_bvalues[nvals].bv_val; nvals++ ) {
 603                                 struct berval pval;
 604                                 if( pretty ) {
 605                                         rc = pretty( ad->ad_type->sat_syntax,
 606                                                 &ml->sml_bvalues[nvals], &pval );
 607                                 } else {
 608                                         rc = validate( ad->ad_type->sat_syntax,
 609                                                 &ml->sml_bvalues[nvals] );
 610                                 }
 611
 612                                 if( rc != 0 ) {
 613                                         snprintf( textbuf, textlen,
 614                                                 "%s: value #%ld invalid per syntax",
 615                                                 ml->sml_type.bv_val, (long) nvals );
 616                                         *text = textbuf;
 617                                         return LDAP_INVALID_SYNTAX;
 618                                 }
 619
 620                                 if( pretty ) {
 621                                         ber_memfree( ml->sml_bvalues[nvals].bv_val );
 622                                         ml->sml_bvalues[nvals] = pval;
 623                                 }
 624                         }
 625
 626                         /*
 627                          * a rough single value check... an additional check is needed
 628                          * to catch add of single value to existing single valued attribute
 629                          */
 630                         if( ( ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE )
 631                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 632                         {
 633                                 snprintf( textbuf, textlen,
 634                                         "%s: multiple value provided",
 635                                         ml->sml_type.bv_val );
 636                                 *text = textbuf;
 637                                 return LDAP_CONSTRAINT_VIOLATION;
 638                         }
 639                 }
 640         }
 641
 642         return LDAP_SUCCESS;
 643 }
 644
 645 int slap_mods_opattrs(
 646         Backend *be,
 647         Operation *op,
 648         Modifications *mods,
 649         Modifications **modtail,
 650         const char **text,
 651         char *textbuf, size_t textlen )
 652 {
 653         struct berval name, timestamp, csn;
 654         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 655         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 656         Modifications *mod;
 657
 658         int mop = op->o_tag == LDAP_REQ_ADD
 659                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 660
 661         assert( modtail != NULL );
 662         assert( *modtail == NULL );
 663
 664         if( SLAP_LASTMOD(be) ) {
 665                 struct tm *ltm;
 666                 time_t now = slap_get_time();
 667
 668                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 669                 ltm = gmtime( &now );
 670                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 671
 672                 csn.bv_len = lutil_csnstr( csnbuf, sizeof( csnbuf ), 0, 0 );
 673                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 674                 csn.bv_val = csnbuf;
 675
 676                 timestamp.bv_val = timebuf;
 677                 timestamp.bv_len = strlen(timebuf);
 678
 679                 if( op->o_dn.bv_len == 0 ) {
 680                         name.bv_val = SLAPD_ANONYMOUS;
 681                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 682                 } else {
 683                         name = op->o_dn;
 684                 }
 685         }
 686
 687         if( op->o_tag == LDAP_REQ_ADD ) {
 688                 struct berval tmpval;
 689
 690                 if( global_schemacheck ) {
 691                         int rc = mods_structural_class( mods, &tmpval,
 692                                 text, textbuf, textlen );
 693                         if( rc != LDAP_SUCCESS ) {
 694                                 return rc;
 695                         }
 696
 697                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 698                         mod->sml_op = mop;
 699                         mod->sml_type.bv_val = NULL;
 700                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 701                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 702                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 703                         mod->sml_bvalues[1].bv_val = NULL;
 704                         assert( mod->sml_bvalues[0].bv_val );
 705                         *modtail = mod;
 706                         modtail = &mod->sml_next;
 707                 }
 708
 709                 if( SLAP_LASTMOD(be) ) {
 710                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 711
 712                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 713                         tmpval.bv_val = uuidbuf;
 714
 715                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 716                         mod->sml_op = mop;
 717                         mod->sml_type.bv_val = NULL;
 718                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 719                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 720                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 721                         mod->sml_bvalues[1].bv_val = NULL;
 722                         assert( mod->sml_bvalues[0].bv_val );
 723                         *modtail = mod;
 724                         modtail = &mod->sml_next;
 725
 726                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 727                         mod->sml_op = mop;
 728                         mod->sml_type.bv_val = NULL;
 729                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 730                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 731                         ber_dupbv( &mod->sml_bvalues[0], &name );
 732                         mod->sml_bvalues[1].bv_val = NULL;
 733                         assert( mod->sml_bvalues[0].bv_val );
 734                         *modtail = mod;
 735                         modtail = &mod->sml_next;
 736
 737                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 738                         mod->sml_op = mop;
 739                         mod->sml_type.bv_val = NULL;
 740                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 741                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 742                         ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 743                         mod->sml_bvalues[1].bv_val = NULL;
 744                         assert( mod->sml_bvalues[0].bv_val );
 745                         *modtail = mod;
 746                         modtail = &mod->sml_next;
 747                 }
 748         }
 749
 750         if( SLAP_LASTMOD(be) ) {
 751                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 752                 mod->sml_op = mop;
 753                 mod->sml_type.bv_val = NULL;
 754                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 755                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 756                 ber_dupbv( &mod->sml_bvalues[0], &csn );
 757                 mod->sml_bvalues[1].bv_val = NULL;
 758                 assert( mod->sml_bvalues[0].bv_val );
 759                 *modtail = mod;
 760                 modtail = &mod->sml_next;
 761
 762                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 763                 mod->sml_op = mop;
 764                 mod->sml_type.bv_val = NULL;
 765                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 766                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 767                 ber_dupbv( &mod->sml_bvalues[0], &name );
 768                 mod->sml_bvalues[1].bv_val = NULL;
 769                 assert( mod->sml_bvalues[0].bv_val );
 770                 *modtail = mod;
 771                 modtail = &mod->sml_next;
 772
 773                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 774                 mod->sml_op = mop;
 775                 mod->sml_type.bv_val = NULL;
 776                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 777                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 778                 ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 779                 mod->sml_bvalues[1].bv_val = NULL;
 780                 assert( mod->sml_bvalues[0].bv_val );
 781                 *modtail = mod;
 782                 modtail = &mod->sml_next;
 783         }
 784
 785         *modtail = NULL;
 786         return LDAP_SUCCESS;
 787 }
 788