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 "lutil.h"
  27
  28 #include "ldap_pvt.h"
  29 #include "slap.h"
  30 #include "slapi.h"
  31
  32 int
  33 do_modify(
  34     Connection  *conn,
  35     Operation   *op )
  36 {
  37         struct berval dn = { 0, NULL };
  38         struct berval pdn = { 0, NULL };
  39         struct berval ndn = { 0, NULL };
  40         char            *last;
  41         ber_tag_t       tag;
  42         ber_len_t       len;
  43         Modifications   *modlist = NULL;
  44         Modifications   **modtail = &modlist;
  45 #ifdef LDAP_DEBUG
  46         Modifications *tmp;
  47 #endif
  48 #ifdef LDAP_SLAPI
  49         LDAPMod         **modv = NULL;
  50         Slapi_PBlock *pb = op->o_pb;
  51 #endif
  52         Backend         *be;
  53         int rc;
  54         const char      *text;
  55         int manageDSAit;
  56
  57 #ifdef NEW_LOGGING
  58         LDAP_LOG( OPERATION, ENTRY, "do_modify: enter\n", 0, 0, 0 );
  59 #else
  60         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  61 #endif
  62
  63         /*
  64          * Parse the modify request.  It looks like this:
  65          *
  66          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  67          *              name    DistinguishedName,
  68          *              mods    SEQUENCE OF SEQUENCE {
  69          *                      operation       ENUMERATED {
  70          *                              add     (0),
  71          *                              delete  (1),
  72          *                              replace (2)
  73          *                      },
  74          *                      modification    SEQUENCE {
  75          *                              type    AttributeType,
  76          *                              values  SET OF AttributeValue
  77          *                      }
  78          *              }
  79          *      }
  80          */
  81
  82         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  83 #ifdef NEW_LOGGING
  84                 LDAP_LOG( OPERATION, ERR, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  85 #else
  86                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  87 #endif
  88
  89                 send_ldap_disconnect( conn, op,
  90                         LDAP_PROTOCOL_ERROR, "decoding error" );
  91                 return SLAPD_DISCONNECT;
  92         }
  93
  94 #ifdef NEW_LOGGING
  95         LDAP_LOG( OPERATION, ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  96 #else
  97         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  98 #endif
  99
 100
 101         /* collect modifications & save for later */
 102
 103         for ( tag = ber_first_element( op->o_ber, &len, &last );
 104             tag != LBER_DEFAULT;
 105             tag = ber_next_element( op->o_ber, &len, last ) )
 106         {
 107                 ber_int_t mop;
 108                 Modifications tmp, *mod;
 109
 110
 111                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 112                     &tmp.sml_type, &tmp.sml_bvalues )
 113                     == LBER_ERROR )
 114                 {
 115                         send_ldap_disconnect( conn, op,
 116                                 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
 117                         rc = SLAPD_DISCONNECT;
 118                         goto cleanup;
 119                 }
 120
 121                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 122                 mod->sml_op = mop;
 123                 mod->sml_type = tmp.sml_type;
 124                 mod->sml_bvalues = tmp.sml_bvalues;
 125                 mod->sml_desc = NULL;
 126                 mod->sml_next = NULL;
 127                 *modtail = mod;
 128
 129                 switch( mop ) {
 130                 case LDAP_MOD_ADD:
 131                         if ( mod->sml_bvalues == NULL ) {
 132 #ifdef NEW_LOGGING
 133                                 LDAP_LOG( OPERATION, ERR,
 134                                         "do_modify: modify/add operation (%ld) requires values\n",
 135                                         (long)mop, 0, 0 );
 136 #else
 137                                 Debug( LDAP_DEBUG_ANY,
 138                                         "do_modify: modify/add operation (%ld) requires values\n",
 139                                         (long) mop, 0, 0 );
 140 #endif
 141
 142                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 143                                         NULL, "modify/add operation requires values",
 144                                         NULL, NULL );
 145                                 rc = LDAP_PROTOCOL_ERROR;
 146                                 goto cleanup;
 147                         }
 148
 149                         /* fall through */
 150
 151                 case LDAP_MOD_DELETE:
 152                 case LDAP_MOD_REPLACE:
 153                         break;
 154
 155                 default: {
 156 #ifdef NEW_LOGGING
 157                                 LDAP_LOG( OPERATION, ERR,
 158                                         "do_modify: invalid modify operation (%ld)\n", (long)mop, 0, 0 );
 159 #else
 160                                 Debug( LDAP_DEBUG_ANY,
 161                                         "do_modify: invalid modify operation (%ld)\n",
 162                                         (long) mop, 0, 0 );
 163 #endif
 164
 165                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 166                                         NULL, "unrecognized modify operation", NULL, NULL );
 167                                 rc = LDAP_PROTOCOL_ERROR;
 168                                 goto cleanup;
 169                         }
 170                 }
 171
 172                 modtail = &mod->sml_next;
 173         }
 174         *modtail = NULL;
 175
 176         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 177 #ifdef NEW_LOGGING
 178                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 179 #else
 180                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 181 #endif
 182
 183                 goto cleanup;
 184         }
 185
 186         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 187         if( rc != LDAP_SUCCESS ) {
 188 #ifdef NEW_LOGGING
 189                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 190                         conn->c_connid, dn.bv_val, 0 );
 191 #else
 192                 Debug( LDAP_DEBUG_ANY,
 193                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 194 #endif
 195                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 196                     "invalid DN", NULL, NULL );
 197                 goto cleanup;
 198         }
 199
 200         if( ndn.bv_len == 0 ) {
 201 #ifdef NEW_LOGGING
 202                 LDAP_LOG( OPERATION, ERR,
 203                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 204 #else
 205                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 206 #endif
 207
 208                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 209                         NULL, "modify upon the root DSE not supported", NULL, NULL );
 210                 goto cleanup;
 211
 212         } else if ( bvmatch( &ndn, &global_schemandn ) ) {
 213 #ifdef NEW_LOGGING
 214                 LDAP_LOG( OPERATION, ERR,
 215                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 216 #else
 217                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 218 #endif
 219
 220                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 221                         NULL, "modification of subschema subentry not supported",
 222                         NULL, NULL );
 223                 goto cleanup;
 224         }
 225
 226 #ifdef LDAP_DEBUG
 227 #ifdef NEW_LOGGING
 228         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 229 #else
 230         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 231 #endif
 232
 233         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 234 #ifdef NEW_LOGGING
 235                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 236                         tmp->sml_op == LDAP_MOD_ADD ?
 237                         "add" : (tmp->sml_op == LDAP_MOD_DELETE ?
 238                         "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 239
 240                 if ( tmp->sml_bvalues == NULL ) {
 241                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 242                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 243                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 244                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 245                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 246                 } else {
 247                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 248                 }
 249
 250 #else
 251                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 252                         tmp->sml_op == LDAP_MOD_ADD
 253                                 ? "add" : (tmp->sml_op == LDAP_MOD_DELETE
 254                                         ? "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 255
 256                 if ( tmp->sml_bvalues == NULL ) {
 257                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 258                            "\t\tno values", NULL, NULL );
 259                 } else if ( tmp->sml_bvalues[0].bv_val == NULL ) {
 260                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 261                            "\t\tzero values", NULL, NULL );
 262                 } else if ( tmp->sml_bvalues[1].bv_val == NULL ) {
 263                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 264                            "\t\tone value", (long) tmp->sml_bvalues[0].bv_len, NULL );
 265                 } else {
 266                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 267                            "\t\tmultiple values", NULL, NULL );
 268                 }
 269 #endif
 270         }
 271 #endif
 272
 273         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 274                 char abuf[BUFSIZ/2], *ptr = abuf;
 275                 int len = 0;
 276
 277                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 278                         op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 279
 280                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 281                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 282                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 283                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 284                                 len = 0;
 285                                 ptr = abuf;
 286                         }
 287                         if (len) {
 288                                 *ptr++ = ' ';
 289                                 len++;
 290                         }
 291                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 292                         len += tmp->sml_type.bv_len;
 293                 }
 294                 if (len) {
 295                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 296                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 297                 }
 298         }
 299
 300         manageDSAit = get_manageDSAit( op );
 301
 302         /*
 303          * We could be serving multiple database backends.  Select the
 304          * appropriate one, or send a referral to our "referral server"
 305          * if we don't hold it.
 306          */
 307         if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
 308                 BerVarray ref = referral_rewrite( default_referral,
 309                         NULL, &pdn, LDAP_SCOPE_DEFAULT );
 310
 311                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 312                         NULL, NULL, ref ? ref : default_referral, NULL );
 313
 314                 ber_bvarray_free( ref );
 315                 goto cleanup;
 316         }
 317
 318         /* check restrictions */
 319         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 320         if( rc != LDAP_SUCCESS ) {
 321                 send_ldap_result( conn, op, rc,
 322                         NULL, text, NULL, NULL );
 323                 goto cleanup;
 324         }
 325
 326         /* check for referrals */
 327         rc = backend_check_referrals( be, conn, op, &pdn, &ndn );
 328         if ( rc != LDAP_SUCCESS ) {
 329                 goto cleanup;
 330         }
 331
 332 #if defined( LDAP_SLAPI )
 333         slapi_x_backend_set_pb( pb, be );
 334         slapi_x_connection_set_pb( pb, conn );
 335         slapi_x_operation_set_pb( pb, op );
 336         slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)dn.bv_val );
 337         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 338         modv = slapi_x_modifications2ldapmods( &modlist );
 339         slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 340
 341         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 342         if ( rc != 0 ) {
 343                 /*
 344                  * A preoperation plugin failure will abort the
 345                  * entire operation.
 346                  */
 347 #ifdef NEW_LOGGING
 348                 LDAP_LOG( OPERATION, INFO, "do_modify: modify preoperation plugin "
 349                                 "failed\n", 0, 0, 0 );
 350 #else
 351                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify preoperation plugin failed.\n",
 352                                 0, 0, 0);
 353 #endif
 354                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&rc ) != 0) {
 355                         rc = LDAP_OTHER;
 356                 }
 357                 ldap_mods_free( modv, 1 );
 358                 modv = NULL;
 359                 goto cleanup;
 360         }
 361
 362         /*
 363          * It's possible that the preoperation plugin changed the
 364          * modification array, so we need to convert it back to
 365          * a Modification list.
 366          *
 367          * Calling slapi_x_modifications2ldapmods() destroyed modlist so
 368          * we don't need to free it.
 369          */
 370         slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 371         modlist = slapi_x_ldapmods2modifications( modv );
 372 #endif /* defined( LDAP_SLAPI ) */
 373
 374         /*
 375          * do the modify if 1 && (2 || 3)
 376          * 1) there is a modify function implemented in this backend;
 377          * 2) this backend is master for what it holds;
 378          * 3) it's a replica and the dn supplied is the update_ndn.
 379          */
 380         if ( be->be_modify ) {
 381                 /* do the update here */
 382                 int repl_user = be_isupdate( be, &op->o_ndn );
 383 #ifndef SLAPD_MULTIMASTER
 384                 /* Multimaster slapd does not have to check for replicator dn
 385                  * because it accepts each modify request
 386                  */
 387                 if ( !be->be_update_ndn.bv_len || repl_user )
 388 #endif
 389                 {
 390                         int update = be->be_update_ndn.bv_len;
 391                         const char *text;
 392                         char textbuf[SLAP_TEXT_BUFLEN];
 393                         size_t textlen = sizeof textbuf;
 394
 395                         rc = slap_mods_check( modlist, update, &text,
 396                                 textbuf, textlen );
 397
 398                         if( rc != LDAP_SUCCESS ) {
 399                                 send_ldap_result( conn, op, rc,
 400                                         NULL, text, NULL, NULL );
 401                                 goto cleanup;
 402                         }
 403
 404                         if ( !repl_user ) {
 405                                 for( modtail = &modlist;
 406                                         *modtail != NULL;
 407                                         modtail = &(*modtail)->sml_next )
 408                                 {
 409                                         /* empty */
 410                                 }
 411
 412                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 413                                         textbuf, textlen );
 414                                 if( rc != LDAP_SUCCESS ) {
 415                                         send_ldap_result( conn, op, rc,
 416                                                 NULL, text,
 417                                                 NULL, NULL );
 418                                         goto cleanup;
 419                                 }
 420                         }
 421
 422                         if ( (*be->be_modify)( be, conn, op, &pdn, &ndn, modlist ) == 0
 423 #ifdef SLAPD_MULTIMASTER
 424                                 && !repl_user
 425 #endif
 426                         ) {
 427                                 /* but we log only the ones not from a replicator user */
 428                                 replog( be, op, &pdn, &ndn, modlist );
 429                         }
 430
 431 #ifndef SLAPD_MULTIMASTER
 432                 /* send a referral */
 433                 } else {
 434                         BerVarray defref = be->be_update_refs
 435                                 ? be->be_update_refs : default_referral;
 436                         BerVarray ref = referral_rewrite( defref,
 437                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 438
 439                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 440                                 ref ? ref : defref, NULL );
 441
 442                         ber_bvarray_free( ref );
 443 #endif
 444                 }
 445         } else {
 446                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 447                     NULL, "operation not supported within namingContext",
 448                         NULL, NULL );
 449         }
 450
 451 #if defined( LDAP_SLAPI )
 452         if ( doPluginFNs( be, SLAPI_PLUGIN_POST_MODIFY_FN, pb ) != 0 ) {
 453 #ifdef NEW_LOGGING
 454                 LDAP_LOG( OPERATION, INFO, "do_modify: modify postoperation plugins "
 455                                 "failed\n", 0, 0, 0 );
 456 #else
 457                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify postoperation plugins "
 458                                 "failed.\n", 0, 0, 0);
 459 #endif
 460         }
 461 #endif /* defined( LDAP_SLAPI ) */
 462
 463 cleanup:
 464         free( pdn.bv_val );
 465         free( ndn.bv_val );
 466         if ( modlist != NULL ) slap_mods_free( modlist );
 467 #if defined( LDAP_SLAPI )
 468         if ( modv != NULL ) slapi_x_free_ldapmods( modv );
 469 #endif
 470         return rc;
 471 }
 472
 473 /*
 474  * Do basic attribute type checking and syntax validation.
 475  */
 476 int slap_mods_check(
 477         Modifications *ml,
 478         int update,
 479         const char **text,
 480         char *textbuf,
 481         size_t textlen )
 482 {
 483         int rc;
 484
 485         for( ; ml != NULL; ml = ml->sml_next ) {
 486                 AttributeDescription *ad = NULL;
 487
 488                 /* convert to attribute description */
 489                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 490
 491                 if( rc != LDAP_SUCCESS ) {
 492                         snprintf( textbuf, textlen, "%s: %s",
 493                                 ml->sml_type.bv_val, *text );
 494                         *text = textbuf;
 495                         return rc;
 496                 }
 497
 498                 ad = ml->sml_desc;
 499
 500                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 501                         && !slap_ad_is_binary( ad ))
 502                 {
 503                         /* attribute requires binary transfer */
 504                         snprintf( textbuf, textlen,
 505                                 "%s: requires ;binary transfer",
 506                                 ml->sml_type.bv_val );
 507                         *text = textbuf;
 508                         return LDAP_UNDEFINED_TYPE;
 509                 }
 510
 511                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 512                         && slap_ad_is_binary( ad ))
 513                 {
 514                         /* attribute requires binary transfer */
 515                         snprintf( textbuf, textlen,
 516                                 "%s: disallows ;binary transfer",
 517                                 ml->sml_type.bv_val );
 518                         *text = textbuf;
 519                         return LDAP_UNDEFINED_TYPE;
 520                 }
 521
 522                 if( slap_ad_is_tag_range( ad )) {
 523                         /* attribute requires binary transfer */
 524                         snprintf( textbuf, textlen,
 525                                 "%s: inappropriate use of tag range option",
 526                                 ml->sml_type.bv_val );
 527                         *text = textbuf;
 528                         return LDAP_UNDEFINED_TYPE;
 529                 }
 530
 531                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 532                         /* user modification disallowed */
 533                         snprintf( textbuf, textlen,
 534                                 "%s: no user modification allowed",
 535                                 ml->sml_type.bv_val );
 536                         *text = textbuf;
 537                         return LDAP_CONSTRAINT_VIOLATION;
 538                 }
 539
 540                 if ( is_at_obsolete( ad->ad_type ) &&
 541                         ( ml->sml_op == LDAP_MOD_ADD || ml->sml_bvalues != NULL ) )
 542                 {
 543                         /*
 544                          * attribute is obsolete,
 545                          * only allow replace/delete with no values
 546                          */
 547                         snprintf( textbuf, textlen,
 548                                 "%s: attribute is obsolete",
 549                                 ml->sml_type.bv_val );
 550                         *text = textbuf;
 551                         return LDAP_CONSTRAINT_VIOLATION;
 552                 }
 553
 554                 /*
 555                  * check values
 556                  */
 557                 if( ml->sml_bvalues != NULL ) {
 558                         ber_len_t nvals;
 559                         slap_syntax_validate_func *validate =
 560                                 ad->ad_type->sat_syntax->ssyn_validate;
 561                         slap_syntax_transform_func *pretty =
 562                                 ad->ad_type->sat_syntax->ssyn_pretty;
 563
 564                         if( !pretty && !validate ) {
 565                                 *text = "no validator for syntax";
 566                                 snprintf( textbuf, textlen,
 567                                         "%s: no validator for syntax %s",
 568                                         ml->sml_type.bv_val,
 569                                         ad->ad_type->sat_syntax->ssyn_oid );
 570                                 *text = textbuf;
 571                                 return LDAP_INVALID_SYNTAX;
 572                         }
 573
 574                         /*
 575                          * check that each value is valid per syntax
 576                          *      and pretty if appropriate
 577                          */
 578                         for( nvals = 0; ml->sml_bvalues[nvals].bv_val; nvals++ ) {
 579                                 struct berval pval;
 580                                 if( pretty ) {
 581                                         rc = pretty( ad->ad_type->sat_syntax,
 582                                                 &ml->sml_bvalues[nvals], &pval );
 583                                 } else {
 584                                         rc = validate( ad->ad_type->sat_syntax,
 585                                                 &ml->sml_bvalues[nvals] );
 586                                 }
 587
 588                                 if( rc != 0 ) {
 589                                         snprintf( textbuf, textlen,
 590                                                 "%s: value #%ld invalid per syntax",
 591                                                 ml->sml_type.bv_val, (long) nvals );
 592                                         *text = textbuf;
 593                                         return LDAP_INVALID_SYNTAX;
 594                                 }
 595
 596                                 if( pretty ) {
 597                                         ber_memfree( ml->sml_bvalues[nvals].bv_val );
 598                                         ml->sml_bvalues[nvals] = pval;
 599                                 }
 600                         }
 601
 602                         /*
 603                          * a rough single value check... an additional check is needed
 604                          * to catch add of single value to existing single valued attribute
 605                          */
 606                         if( ( ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE )
 607                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 608                         {
 609                                 snprintf( textbuf, textlen,
 610                                         "%s: multiple value provided",
 611                                         ml->sml_type.bv_val );
 612                                 *text = textbuf;
 613                                 return LDAP_CONSTRAINT_VIOLATION;
 614                         }
 615                 }
 616         }
 617
 618         return LDAP_SUCCESS;
 619 }
 620
 621 int slap_mods_opattrs(
 622         Backend *be,
 623         Operation *op,
 624         Modifications *mods,
 625         Modifications **modtail,
 626         const char **text,
 627         char *textbuf, size_t textlen )
 628 {
 629         struct berval name, timestamp, csn;
 630         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 631         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 632         Modifications *mod;
 633
 634         int mop = op->o_tag == LDAP_REQ_ADD
 635                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 636
 637         assert( modtail != NULL );
 638         assert( *modtail == NULL );
 639
 640         if( SLAP_LASTMOD(be) ) {
 641                 struct tm *ltm;
 642                 time_t now = slap_get_time();
 643
 644                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 645                 ltm = gmtime( &now );
 646                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 647
 648                 csn.bv_len = lutil_csnstr( csnbuf, sizeof( csnbuf ), 0, 0 );
 649                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 650                 csn.bv_val = csnbuf;
 651
 652                 timestamp.bv_val = timebuf;
 653                 timestamp.bv_len = strlen(timebuf);
 654
 655                 if( op->o_dn.bv_len == 0 ) {
 656                         name.bv_val = SLAPD_ANONYMOUS;
 657                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 658                 } else {
 659                         name = op->o_dn;
 660                 }
 661         }
 662
 663         if( op->o_tag == LDAP_REQ_ADD ) {
 664                 struct berval tmpval;
 665
 666                 if( global_schemacheck ) {
 667                         int rc = mods_structural_class( mods, &tmpval,
 668                                 text, textbuf, textlen );
 669                         if( rc != LDAP_SUCCESS ) {
 670                                 return rc;
 671                         }
 672
 673                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 674                         mod->sml_op = mop;
 675                         mod->sml_type.bv_val = NULL;
 676                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 677                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 678                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 679                         mod->sml_bvalues[1].bv_val = NULL;
 680                         assert( mod->sml_bvalues[0].bv_val );
 681                         *modtail = mod;
 682                         modtail = &mod->sml_next;
 683                 }
 684
 685                 if( SLAP_LASTMOD(be) ) {
 686                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 687
 688                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 689                         tmpval.bv_val = uuidbuf;
 690
 691                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 692                         mod->sml_op = mop;
 693                         mod->sml_type.bv_val = NULL;
 694                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 695                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 696                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 697                         mod->sml_bvalues[1].bv_val = NULL;
 698                         assert( mod->sml_bvalues[0].bv_val );
 699                         *modtail = mod;
 700                         modtail = &mod->sml_next;
 701
 702                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 703                         mod->sml_op = mop;
 704                         mod->sml_type.bv_val = NULL;
 705                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 706                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 707                         ber_dupbv( &mod->sml_bvalues[0], &name );
 708                         mod->sml_bvalues[1].bv_val = NULL;
 709                         assert( mod->sml_bvalues[0].bv_val );
 710                         *modtail = mod;
 711                         modtail = &mod->sml_next;
 712
 713                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 714                         mod->sml_op = mop;
 715                         mod->sml_type.bv_val = NULL;
 716                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 717                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 718                         ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 719                         mod->sml_bvalues[1].bv_val = NULL;
 720                         assert( mod->sml_bvalues[0].bv_val );
 721                         *modtail = mod;
 722                         modtail = &mod->sml_next;
 723                 }
 724         }
 725
 726         if( SLAP_LASTMOD(be) ) {
 727                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 728                 mod->sml_op = mop;
 729                 mod->sml_type.bv_val = NULL;
 730                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 731                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 732                 ber_dupbv( &mod->sml_bvalues[0], &csn );
 733                 mod->sml_bvalues[1].bv_val = NULL;
 734                 assert( mod->sml_bvalues[0].bv_val );
 735                 *modtail = mod;
 736                 modtail = &mod->sml_next;
 737
 738                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 739                 mod->sml_op = mop;
 740                 mod->sml_type.bv_val = NULL;
 741                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 742                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 743                 ber_dupbv( &mod->sml_bvalues[0], &name );
 744                 mod->sml_bvalues[1].bv_val = NULL;
 745                 assert( mod->sml_bvalues[0].bv_val );
 746                 *modtail = mod;
 747                 modtail = &mod->sml_next;
 748
 749                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 750                 mod->sml_op = mop;
 751                 mod->sml_type.bv_val = NULL;
 752                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 753                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 754                 ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 755                 mod->sml_bvalues[1].bv_val = NULL;
 756                 assert( mod->sml_bvalues[0].bv_val );
 757                 *modtail = mod;
 758                 modtail = &mod->sml_next;
 759         }
 760
 761         *modtail = NULL;
 762         return LDAP_SUCCESS;
 763 }
 764