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         /* deref suffix alias if appropriate */
 333         suffix_alias( be, &ndn );
 334
 335 #if defined( LDAP_SLAPI )
 336         slapi_x_backend_set_pb( pb, be );
 337         slapi_x_connection_set_pb( pb, conn );
 338         slapi_x_operation_set_pb( pb, op );
 339         slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)dn.bv_val );
 340         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 341         modv = slapi_x_modifications2ldapmods( &modlist );
 342         slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 343
 344         rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 345         if ( rc != 0 ) {
 346                 /*
 347                  * A preoperation plugin failure will abort the
 348                  * entire operation.
 349                  */
 350 #ifdef NEW_LOGGING
 351                 LDAP_LOG( OPERATION, INFO, "do_modify: modify preoperation plugin "
 352                                 "failed\n", 0, 0, 0 );
 353 #else
 354                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify preoperation plugin failed.\n",
 355                                 0, 0, 0);
 356 #endif
 357                 if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&rc ) != 0) {
 358                         rc = LDAP_OTHER;
 359                 }
 360                 ldap_mods_free( modv, 1 );
 361                 modv = NULL;
 362                 goto cleanup;
 363         }
 364
 365         /*
 366          * It's possible that the preoperation plugin changed the
 367          * modification array, so we need to convert it back to
 368          * a Modification list.
 369          *
 370          * Calling slapi_x_modifications2ldapmods() destroyed modlist so
 371          * we don't need to free it.
 372          */
 373         slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 374         modlist = slapi_x_ldapmods2modifications( modv );
 375 #endif /* defined( LDAP_SLAPI ) */
 376
 377         /*
 378          * do the modify if 1 && (2 || 3)
 379          * 1) there is a modify function implemented in this backend;
 380          * 2) this backend is master for what it holds;
 381          * 3) it's a replica and the dn supplied is the update_ndn.
 382          */
 383         if ( be->be_modify ) {
 384                 /* do the update here */
 385                 int repl_user = be_isupdate( be, &op->o_ndn );
 386 #ifndef SLAPD_MULTIMASTER
 387                 /* Multimaster slapd does not have to check for replicator dn
 388                  * because it accepts each modify request
 389                  */
 390                 if ( !be->be_update_ndn.bv_len || repl_user )
 391 #endif
 392                 {
 393                         int update = be->be_update_ndn.bv_len;
 394                         const char *text;
 395                         char textbuf[SLAP_TEXT_BUFLEN];
 396                         size_t textlen = sizeof textbuf;
 397
 398                         rc = slap_mods_check( modlist, update, &text,
 399                                 textbuf, textlen );
 400
 401                         if( rc != LDAP_SUCCESS ) {
 402                                 send_ldap_result( conn, op, rc,
 403                                         NULL, text, NULL, NULL );
 404                                 goto cleanup;
 405                         }
 406
 407                         if ( !repl_user ) {
 408                                 for( modtail = &modlist;
 409                                         *modtail != NULL;
 410                                         modtail = &(*modtail)->sml_next )
 411                                 {
 412                                         /* empty */
 413                                 }
 414
 415                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 416                                         textbuf, textlen );
 417                                 if( rc != LDAP_SUCCESS ) {
 418                                         send_ldap_result( conn, op, rc,
 419                                                 NULL, text,
 420                                                 NULL, NULL );
 421                                         goto cleanup;
 422                                 }
 423                         }
 424
 425                         if ( (*be->be_modify)( be, conn, op, &pdn, &ndn, modlist ) == 0
 426 #ifdef SLAPD_MULTIMASTER
 427                                 && !repl_user
 428 #endif
 429                         ) {
 430                                 /* but we log only the ones not from a replicator user */
 431                                 replog( be, op, &pdn, &ndn, modlist );
 432                         }
 433
 434 #ifndef SLAPD_MULTIMASTER
 435                 /* send a referral */
 436                 } else {
 437                         BerVarray defref = be->be_update_refs
 438                                 ? be->be_update_refs : default_referral;
 439                         BerVarray ref = referral_rewrite( defref,
 440                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 441
 442                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 443                                 ref ? ref : defref, NULL );
 444
 445                         ber_bvarray_free( ref );
 446 #endif
 447                 }
 448         } else {
 449                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 450                     NULL, "operation not supported within namingContext",
 451                         NULL, NULL );
 452         }
 453
 454 #if defined( LDAP_SLAPI )
 455         if ( doPluginFNs( be, SLAPI_PLUGIN_POST_MODIFY_FN, pb ) != 0 ) {
 456 #ifdef NEW_LOGGING
 457                 LDAP_LOG( OPERATION, INFO, "do_modify: modify postoperation plugins "
 458                                 "failed\n", 0, 0, 0 );
 459 #else
 460                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify postoperation plugins "
 461                                 "failed.\n", 0, 0, 0);
 462 #endif
 463         }
 464 #endif /* defined( LDAP_SLAPI ) */
 465
 466 cleanup:
 467         free( pdn.bv_val );
 468         free( ndn.bv_val );
 469         if ( modlist != NULL ) slap_mods_free( modlist );
 470 #if defined( LDAP_SLAPI )
 471         if ( modv != NULL ) slapi_x_free_ldapmods( modv );
 472 #endif
 473         return rc;
 474 }
 475
 476 /*
 477  * Do basic attribute type checking and syntax validation.
 478  */
 479 int slap_mods_check(
 480         Modifications *ml,
 481         int update,
 482         const char **text,
 483         char *textbuf,
 484         size_t textlen )
 485 {
 486         int rc;
 487
 488         for( ; ml != NULL; ml = ml->sml_next ) {
 489                 AttributeDescription *ad = NULL;
 490
 491                 /* convert to attribute description */
 492                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 493
 494                 if( rc != LDAP_SUCCESS ) {
 495                         snprintf( textbuf, textlen, "%s: %s",
 496                                 ml->sml_type.bv_val, *text );
 497                         *text = textbuf;
 498                         return rc;
 499                 }
 500
 501                 ad = ml->sml_desc;
 502
 503                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 504                         && !slap_ad_is_binary( ad ))
 505                 {
 506                         /* attribute requires binary transfer */
 507                         snprintf( textbuf, textlen,
 508                                 "%s: requires ;binary transfer",
 509                                 ml->sml_type.bv_val );
 510                         *text = textbuf;
 511                         return LDAP_UNDEFINED_TYPE;
 512                 }
 513
 514                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 515                         && slap_ad_is_binary( ad ))
 516                 {
 517                         /* attribute requires binary transfer */
 518                         snprintf( textbuf, textlen,
 519                                 "%s: disallows ;binary transfer",
 520                                 ml->sml_type.bv_val );
 521                         *text = textbuf;
 522                         return LDAP_UNDEFINED_TYPE;
 523                 }
 524
 525                 if( slap_ad_is_tag_range( ad )) {
 526                         /* attribute requires binary transfer */
 527                         snprintf( textbuf, textlen,
 528                                 "%s: inappropriate use of tag range option",
 529                                 ml->sml_type.bv_val );
 530                         *text = textbuf;
 531                         return LDAP_UNDEFINED_TYPE;
 532                 }
 533
 534                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 535                         /* user modification disallowed */
 536                         snprintf( textbuf, textlen,
 537                                 "%s: no user modification allowed",
 538                                 ml->sml_type.bv_val );
 539                         *text = textbuf;
 540                         return LDAP_CONSTRAINT_VIOLATION;
 541                 }
 542
 543                 if ( is_at_obsolete( ad->ad_type ) &&
 544                         ( ml->sml_op == LDAP_MOD_ADD || ml->sml_bvalues != NULL ) )
 545                 {
 546                         /*
 547                          * attribute is obsolete,
 548                          * only allow replace/delete with no values
 549                          */
 550                         snprintf( textbuf, textlen,
 551                                 "%s: attribute is obsolete",
 552                                 ml->sml_type.bv_val );
 553                         *text = textbuf;
 554                         return LDAP_CONSTRAINT_VIOLATION;
 555                 }
 556
 557                 /*
 558                  * check values
 559                  */
 560                 if( ml->sml_bvalues != NULL ) {
 561                         ber_len_t nvals;
 562                         slap_syntax_validate_func *validate =
 563                                 ad->ad_type->sat_syntax->ssyn_validate;
 564                         slap_syntax_transform_func *pretty =
 565                                 ad->ad_type->sat_syntax->ssyn_pretty;
 566
 567                         if( !pretty && !validate ) {
 568                                 *text = "no validator for syntax";
 569                                 snprintf( textbuf, textlen,
 570                                         "%s: no validator for syntax %s",
 571                                         ml->sml_type.bv_val,
 572                                         ad->ad_type->sat_syntax->ssyn_oid );
 573                                 *text = textbuf;
 574                                 return LDAP_INVALID_SYNTAX;
 575                         }
 576
 577                         /*
 578                          * check that each value is valid per syntax
 579                          *      and pretty if appropriate
 580                          */
 581                         for( nvals = 0; ml->sml_bvalues[nvals].bv_val; nvals++ ) {
 582                                 struct berval pval;
 583                                 if( pretty ) {
 584                                         rc = pretty( ad->ad_type->sat_syntax,
 585                                                 &ml->sml_bvalues[nvals], &pval );
 586                                 } else {
 587                                         rc = validate( ad->ad_type->sat_syntax,
 588                                                 &ml->sml_bvalues[nvals] );
 589                                 }
 590
 591                                 if( rc != 0 ) {
 592                                         snprintf( textbuf, textlen,
 593                                                 "%s: value #%ld invalid per syntax",
 594                                                 ml->sml_type.bv_val, (long) nvals );
 595                                         *text = textbuf;
 596                                         return LDAP_INVALID_SYNTAX;
 597                                 }
 598
 599                                 if( pretty ) {
 600                                         ber_memfree( ml->sml_bvalues[nvals].bv_val );
 601                                         ml->sml_bvalues[nvals] = pval;
 602                                 }
 603                         }
 604
 605                         /*
 606                          * a rough single value check... an additional check is needed
 607                          * to catch add of single value to existing single valued attribute
 608                          */
 609                         if( ( ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE )
 610                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 611                         {
 612                                 snprintf( textbuf, textlen,
 613                                         "%s: multiple value provided",
 614                                         ml->sml_type.bv_val );
 615                                 *text = textbuf;
 616                                 return LDAP_CONSTRAINT_VIOLATION;
 617                         }
 618                 }
 619         }
 620
 621         return LDAP_SUCCESS;
 622 }
 623
 624 int slap_mods_opattrs(
 625         Backend *be,
 626         Operation *op,
 627         Modifications *mods,
 628         Modifications **modtail,
 629         const char **text,
 630         char *textbuf, size_t textlen )
 631 {
 632         struct berval name, timestamp, csn;
 633         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 634         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 635         Modifications *mod;
 636
 637         int mop = op->o_tag == LDAP_REQ_ADD
 638                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 639
 640         assert( modtail != NULL );
 641         assert( *modtail == NULL );
 642
 643         if( SLAP_LASTMOD(be) ) {
 644                 struct tm *ltm;
 645                 time_t now = slap_get_time();
 646
 647                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 648                 ltm = gmtime( &now );
 649                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 650
 651                 csn.bv_len = lutil_csnstr( csnbuf, sizeof( csnbuf ), 0, 0 );
 652                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 653                 csn.bv_val = csnbuf;
 654
 655                 timestamp.bv_val = timebuf;
 656                 timestamp.bv_len = strlen(timebuf);
 657
 658                 if( op->o_dn.bv_len == 0 ) {
 659                         name.bv_val = SLAPD_ANONYMOUS;
 660                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 661                 } else {
 662                         name = op->o_dn;
 663                 }
 664         }
 665
 666         if( op->o_tag == LDAP_REQ_ADD ) {
 667                 struct berval tmpval;
 668
 669                 if( global_schemacheck ) {
 670                         int rc = mods_structural_class( mods, &tmpval,
 671                                 text, textbuf, textlen );
 672                         if( rc != LDAP_SUCCESS ) {
 673                                 return rc;
 674                         }
 675
 676                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 677                         mod->sml_op = mop;
 678                         mod->sml_type.bv_val = NULL;
 679                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 680                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 681                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 682                         mod->sml_bvalues[1].bv_val = NULL;
 683                         assert( mod->sml_bvalues[0].bv_val );
 684                         *modtail = mod;
 685                         modtail = &mod->sml_next;
 686                 }
 687
 688                 if( SLAP_LASTMOD(be) ) {
 689                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 690
 691                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 692                         tmpval.bv_val = uuidbuf;
 693
 694                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 695                         mod->sml_op = mop;
 696                         mod->sml_type.bv_val = NULL;
 697                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 698                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 699                         ber_dupbv( &mod->sml_bvalues[0], &tmpval );
 700                         mod->sml_bvalues[1].bv_val = NULL;
 701                         assert( mod->sml_bvalues[0].bv_val );
 702                         *modtail = mod;
 703                         modtail = &mod->sml_next;
 704
 705                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 706                         mod->sml_op = mop;
 707                         mod->sml_type.bv_val = NULL;
 708                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 709                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 710                         ber_dupbv( &mod->sml_bvalues[0], &name );
 711                         mod->sml_bvalues[1].bv_val = NULL;
 712                         assert( mod->sml_bvalues[0].bv_val );
 713                         *modtail = mod;
 714                         modtail = &mod->sml_next;
 715
 716                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 717                         mod->sml_op = mop;
 718                         mod->sml_type.bv_val = NULL;
 719                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 720                         mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 721                         ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 722                         mod->sml_bvalues[1].bv_val = NULL;
 723                         assert( mod->sml_bvalues[0].bv_val );
 724                         *modtail = mod;
 725                         modtail = &mod->sml_next;
 726                 }
 727         }
 728
 729         if( SLAP_LASTMOD(be) ) {
 730                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 731                 mod->sml_op = mop;
 732                 mod->sml_type.bv_val = NULL;
 733                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 734                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 735                 ber_dupbv( &mod->sml_bvalues[0], &csn );
 736                 mod->sml_bvalues[1].bv_val = NULL;
 737                 assert( mod->sml_bvalues[0].bv_val );
 738                 *modtail = mod;
 739                 modtail = &mod->sml_next;
 740
 741                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 742                 mod->sml_op = mop;
 743                 mod->sml_type.bv_val = NULL;
 744                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 745                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 746                 ber_dupbv( &mod->sml_bvalues[0], &name );
 747                 mod->sml_bvalues[1].bv_val = NULL;
 748                 assert( mod->sml_bvalues[0].bv_val );
 749                 *modtail = mod;
 750                 modtail = &mod->sml_next;
 751
 752                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 753                 mod->sml_op = mop;
 754                 mod->sml_type.bv_val = NULL;
 755                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 756                 mod->sml_bvalues = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 757                 ber_dupbv( &mod->sml_bvalues[0], &timestamp );
 758                 mod->sml_bvalues[1].bv_val = NULL;
 759                 assert( mod->sml_bvalues[0].bv_val );
 760                 *modtail = mod;
 761                 modtail = &mod->sml_next;
 762         }
 763
 764         *modtail = NULL;
 765         return LDAP_SUCCESS;
 766 }
 767