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 #ifdef LDAP_SLAPI
  31 #include "slapi.h"
  32 #endif
  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 #ifdef SLAP_NVALUES
 113                 tmp.sml_nvalues = NULL;
 114 #endif
 115
 116                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 117                     &tmp.sml_type, &tmp.sml_values )
 118                     == LBER_ERROR )
 119                 {
 120                         send_ldap_disconnect( conn, op,
 121                                 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
 122                         rc = SLAPD_DISCONNECT;
 123                         goto cleanup;
 124                 }
 125
 126                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 127                 mod->sml_op = mop;
 128                 mod->sml_type = tmp.sml_type;
 129                 mod->sml_values = tmp.sml_values;
 130 #ifdef SLAP_NVALUES
 131                 mod->sml_nvalues = NULL;
 132 #endif
 133                 mod->sml_desc = NULL;
 134                 mod->sml_next = NULL;
 135                 *modtail = mod;
 136
 137                 switch( mop ) {
 138                 case LDAP_MOD_ADD:
 139                         if ( mod->sml_values == NULL ) {
 140 #ifdef NEW_LOGGING
 141                                 LDAP_LOG( OPERATION, ERR,
 142                                         "do_modify: modify/add operation (%ld) requires values\n",
 143                                         (long)mop, 0, 0 );
 144 #else
 145                                 Debug( LDAP_DEBUG_ANY,
 146                                         "do_modify: modify/add operation (%ld) requires values\n",
 147                                         (long) mop, 0, 0 );
 148 #endif
 149
 150                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 151                                         NULL, "modify/add operation requires values",
 152                                         NULL, NULL );
 153                                 rc = LDAP_PROTOCOL_ERROR;
 154                                 goto cleanup;
 155                         }
 156
 157                         /* fall through */
 158
 159                 case LDAP_MOD_DELETE:
 160                 case LDAP_MOD_REPLACE:
 161                         break;
 162
 163                 default: {
 164 #ifdef NEW_LOGGING
 165                                 LDAP_LOG( OPERATION, ERR,
 166                                         "do_modify: invalid modify operation (%ld)\n", (long)mop, 0, 0 );
 167 #else
 168                                 Debug( LDAP_DEBUG_ANY,
 169                                         "do_modify: invalid modify operation (%ld)\n",
 170                                         (long) mop, 0, 0 );
 171 #endif
 172
 173                                 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
 174                                         NULL, "unrecognized modify operation", NULL, NULL );
 175                                 rc = LDAP_PROTOCOL_ERROR;
 176                                 goto cleanup;
 177                         }
 178                 }
 179
 180                 modtail = &mod->sml_next;
 181         }
 182         *modtail = NULL;
 183
 184         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 185 #ifdef NEW_LOGGING
 186                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 187 #else
 188                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 189 #endif
 190
 191                 goto cleanup;
 192         }
 193
 194         rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
 195         if( rc != LDAP_SUCCESS ) {
 196 #ifdef NEW_LOGGING
 197                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 198                         conn->c_connid, dn.bv_val, 0 );
 199 #else
 200                 Debug( LDAP_DEBUG_ANY,
 201                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 202 #endif
 203                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 204                     "invalid DN", NULL, NULL );
 205                 goto cleanup;
 206         }
 207
 208         if( ndn.bv_len == 0 ) {
 209 #ifdef NEW_LOGGING
 210                 LDAP_LOG( OPERATION, ERR,
 211                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 212 #else
 213                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 214 #endif
 215
 216                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 217                         NULL, "modify upon the root DSE not supported", NULL, NULL );
 218                 goto cleanup;
 219
 220         } else if ( bvmatch( &ndn, &global_schemandn ) ) {
 221 #ifdef NEW_LOGGING
 222                 LDAP_LOG( OPERATION, ERR,
 223                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 224 #else
 225                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 226 #endif
 227
 228                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 229                         NULL, "modification of subschema subentry not supported",
 230                         NULL, NULL );
 231                 goto cleanup;
 232         }
 233
 234 #ifdef LDAP_DEBUG
 235 #ifdef NEW_LOGGING
 236         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 237 #else
 238         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 239 #endif
 240
 241         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 242 #ifdef NEW_LOGGING
 243                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 244                         tmp->sml_op == LDAP_MOD_ADD ?
 245                         "add" : (tmp->sml_op == LDAP_MOD_DELETE ?
 246                         "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 247
 248                 if ( tmp->sml_values == NULL ) {
 249                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 250                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 251                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 252                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 253                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 254                 } else {
 255                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 256                 }
 257
 258 #else
 259                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 260                         tmp->sml_op == LDAP_MOD_ADD
 261                                 ? "add" : (tmp->sml_op == LDAP_MOD_DELETE
 262                                         ? "delete" : "replace"), tmp->sml_type.bv_val, 0 );
 263
 264                 if ( tmp->sml_values == NULL ) {
 265                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 266                            "\t\tno values", NULL, NULL );
 267                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 268                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 269                            "\t\tzero values", NULL, NULL );
 270                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 271                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 272                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 273                 } else {
 274                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 275                            "\t\tmultiple values", NULL, NULL );
 276                 }
 277 #endif
 278         }
 279 #endif
 280
 281         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 282                 char abuf[BUFSIZ/2], *ptr = abuf;
 283                 int len = 0;
 284
 285                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 286                         op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 287
 288                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 289                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 290                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 291                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 292                                 len = 0;
 293                                 ptr = abuf;
 294                         }
 295                         if (len) {
 296                                 *ptr++ = ' ';
 297                                 len++;
 298                         }
 299                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 300                         len += tmp->sml_type.bv_len;
 301                 }
 302                 if (len) {
 303                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 304                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 305                 }
 306         }
 307
 308         manageDSAit = get_manageDSAit( op );
 309
 310         /*
 311          * We could be serving multiple database backends.  Select the
 312          * appropriate one, or send a referral to our "referral server"
 313          * if we don't hold it.
 314          */
 315         if ( (be = select_backend( &ndn, manageDSAit, 0 )) == NULL ) {
 316                 BerVarray ref = referral_rewrite( default_referral,
 317                         NULL, &pdn, LDAP_SCOPE_DEFAULT );
 318
 319                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 320                         NULL, NULL, ref ? ref : default_referral, NULL );
 321
 322                 ber_bvarray_free( ref );
 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
 403                         rc = slap_mods_check( modlist, update, &text,
 404                                 textbuf, textlen );
 405
 406                         if( rc != LDAP_SUCCESS ) {
 407                                 send_ldap_result( conn, op, rc,
 408                                         NULL, text, NULL, NULL );
 409                                 goto cleanup;
 410                         }
 411
 412                         if ( !repl_user ) {
 413                                 for( modtail = &modlist;
 414                                         *modtail != NULL;
 415                                         modtail = &(*modtail)->sml_next )
 416                                 {
 417                                         /* empty */
 418                                 }
 419
 420                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 421                                         textbuf, textlen );
 422                                 if( rc != LDAP_SUCCESS ) {
 423                                         send_ldap_result( conn, op, rc,
 424                                                 NULL, text,
 425                                                 NULL, NULL );
 426                                         goto cleanup;
 427                                 }
 428                         }
 429
 430                         if ( (*be->be_modify)( be, conn, op, &pdn, &ndn, modlist ) == 0
 431 #ifdef SLAPD_MULTIMASTER
 432                                 && !repl_user
 433 #endif
 434                         ) {
 435                                 /* but we log only the ones not from a replicator user */
 436                                 replog( be, op, &pdn, &ndn, modlist );
 437                         }
 438
 439 #ifndef SLAPD_MULTIMASTER
 440                 /* send a referral */
 441                 } else {
 442                         BerVarray defref = be->be_update_refs
 443                                 ? be->be_update_refs : default_referral;
 444                         BerVarray ref = referral_rewrite( defref,
 445                                 NULL, &pdn, LDAP_SCOPE_DEFAULT );
 446
 447                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 448                                 ref ? ref : defref, NULL );
 449
 450                         ber_bvarray_free( ref );
 451 #endif
 452                 }
 453         } else {
 454                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 455                     NULL, "operation not supported within namingContext",
 456                         NULL, NULL );
 457         }
 458
 459 #if defined( LDAP_SLAPI )
 460         if ( doPluginFNs( be, SLAPI_PLUGIN_POST_MODIFY_FN, pb ) != 0 ) {
 461 #ifdef NEW_LOGGING
 462                 LDAP_LOG( OPERATION, INFO, "do_modify: modify postoperation plugins "
 463                                 "failed\n", 0, 0, 0 );
 464 #else
 465                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify postoperation plugins "
 466                                 "failed.\n", 0, 0, 0);
 467 #endif
 468         }
 469 #endif /* defined( LDAP_SLAPI ) */
 470
 471 cleanup:
 472         free( pdn.bv_val );
 473         free( ndn.bv_val );
 474         if ( modlist != NULL ) slap_mods_free( modlist );
 475 #if defined( LDAP_SLAPI )
 476         if ( modv != NULL ) slapi_x_free_ldapmods( modv );
 477 #endif
 478         return rc;
 479 }
 480
 481 /*
 482  * Do basic attribute type checking and syntax validation.
 483  */
 484 int slap_mods_check(
 485         Modifications *ml,
 486         int update,
 487         const char **text,
 488         char *textbuf,
 489         size_t textlen )
 490 {
 491         int rc;
 492
 493         for( ; ml != NULL; ml = ml->sml_next ) {
 494                 AttributeDescription *ad = NULL;
 495
 496                 /* convert to attribute description */
 497                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 498
 499                 if( rc != LDAP_SUCCESS ) {
 500                         snprintf( textbuf, textlen, "%s: %s",
 501                                 ml->sml_type.bv_val, *text );
 502                         *text = textbuf;
 503                         return rc;
 504                 }
 505
 506                 ad = ml->sml_desc;
 507
 508                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 509                         && !slap_ad_is_binary( ad ))
 510                 {
 511                         /* attribute requires binary transfer */
 512                         snprintf( textbuf, textlen,
 513                                 "%s: requires ;binary transfer",
 514                                 ml->sml_type.bv_val );
 515                         *text = textbuf;
 516                         return LDAP_UNDEFINED_TYPE;
 517                 }
 518
 519                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 520                         && slap_ad_is_binary( ad ))
 521                 {
 522                         /* attribute requires binary transfer */
 523                         snprintf( textbuf, textlen,
 524                                 "%s: disallows ;binary transfer",
 525                                 ml->sml_type.bv_val );
 526                         *text = textbuf;
 527                         return LDAP_UNDEFINED_TYPE;
 528                 }
 529
 530                 if( slap_ad_is_tag_range( ad )) {
 531                         /* attribute requires binary transfer */
 532                         snprintf( textbuf, textlen,
 533                                 "%s: inappropriate use of tag range option",
 534                                 ml->sml_type.bv_val );
 535                         *text = textbuf;
 536                         return LDAP_UNDEFINED_TYPE;
 537                 }
 538
 539                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 540                         /* user modification disallowed */
 541                         snprintf( textbuf, textlen,
 542                                 "%s: no user modification allowed",
 543                                 ml->sml_type.bv_val );
 544                         *text = textbuf;
 545                         return LDAP_CONSTRAINT_VIOLATION;
 546                 }
 547
 548                 if ( is_at_obsolete( ad->ad_type ) &&
 549                         ( ml->sml_op == LDAP_MOD_ADD || ml->sml_values != NULL ) )
 550                 {
 551                         /*
 552                          * attribute is obsolete,
 553                          * only allow replace/delete with no values
 554                          */
 555                         snprintf( textbuf, textlen,
 556                                 "%s: attribute is obsolete",
 557                                 ml->sml_type.bv_val );
 558                         *text = textbuf;
 559                         return LDAP_CONSTRAINT_VIOLATION;
 560                 }
 561
 562                 /*
 563                  * check values
 564                  */
 565                 if( ml->sml_values != NULL ) {
 566                         ber_len_t nvals;
 567                         slap_syntax_validate_func *validate =
 568                                 ad->ad_type->sat_syntax->ssyn_validate;
 569                         slap_syntax_transform_func *pretty =
 570                                 ad->ad_type->sat_syntax->ssyn_pretty;
 571
 572                         if( !pretty && !validate ) {
 573                                 *text = "no validator for syntax";
 574                                 snprintf( textbuf, textlen,
 575                                         "%s: no validator for syntax %s",
 576                                         ml->sml_type.bv_val,
 577                                         ad->ad_type->sat_syntax->ssyn_oid );
 578                                 *text = textbuf;
 579                                 return LDAP_INVALID_SYNTAX;
 580                         }
 581
 582                         /*
 583                          * check that each value is valid per syntax
 584                          *      and pretty if appropriate
 585                          */
 586                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 587                                 struct berval pval;
 588                                 if( pretty ) {
 589                                         rc = pretty( ad->ad_type->sat_syntax,
 590                                                 &ml->sml_values[nvals], &pval );
 591                                 } else {
 592                                         rc = validate( ad->ad_type->sat_syntax,
 593                                                 &ml->sml_values[nvals] );
 594                                 }
 595
 596                                 if( rc != 0 ) {
 597                                         snprintf( textbuf, textlen,
 598                                                 "%s: value #%ld invalid per syntax",
 599                                                 ml->sml_type.bv_val, (long) nvals );
 600                                         *text = textbuf;
 601                                         return LDAP_INVALID_SYNTAX;
 602                                 }
 603
 604                                 if( pretty ) {
 605                                         ber_memfree( ml->sml_values[nvals].bv_val );
 606                                         ml->sml_values[nvals] = pval;
 607                                 }
 608                         }
 609
 610                         /*
 611                          * a rough single value check... an additional check is needed
 612                          * to catch add of single value to existing single valued attribute
 613                          */
 614                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 615                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 616                         {
 617                                 snprintf( textbuf, textlen,
 618                                         "%s: multiple values provided",
 619                                         ml->sml_type.bv_val );
 620                                 *text = textbuf;
 621                                 return LDAP_CONSTRAINT_VIOLATION;
 622                         }
 623
 624 #ifdef SLAP_NVALUES
 625                         if( nvals && ad->ad_type->sat_equality &&
 626                                 ad->ad_type->sat_equality->smr_normalize )
 627                         {
 628                                 ml->sml_nvalues = ch_malloc( (nvals+1)*sizeof(struct berval) );
 629                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 630                                         rc = ad->ad_type->sat_equality->smr_normalize(
 631                                                 0,
 632                                                 ad->ad_type->sat_syntax,
 633                                                 ad->ad_type->sat_equality,
 634                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals] );
 635                                         if( rc ) {
 636 #ifdef NEW_LOGGING
 637                                                 LDAP_LOG( OPERATION, DETAIL1,
 638                                                         "str2entry:  NULL (ssyn_normalize %d)\n",
 639                                                         rc, 0, 0 );
 640 #else
 641                                                 Debug( LDAP_DEBUG_ANY,
 642                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 643                                                         rc, 0, 0 );
 644 #endif
 645                                                 snprintf( textbuf, textlen,
 646                                                         "%s: value #%ld normalization failed",
 647                                                         ml->sml_type.bv_val, (long) nvals );
 648                                                 *text = textbuf;
 649                                                 return rc;
 650                                         }
 651                                 }
 652                                 ml->sml_nvalues[nvals].bv_val = NULL;
 653                                 ml->sml_nvalues[nvals].bv_len = 0;
 654                         }
 655 #endif
 656                 }
 657         }
 658
 659         return LDAP_SUCCESS;
 660 }
 661
 662 int slap_mods_opattrs(
 663         Backend *be,
 664         Operation *op,
 665         Modifications *mods,
 666         Modifications **modtail,
 667         const char **text,
 668         char *textbuf, size_t textlen )
 669 {
 670         struct berval name, timestamp, csn;
 671 #ifdef SLAP_NVALUES
 672         struct berval nname;
 673 #endif
 674         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 675         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 676         Modifications *mod;
 677
 678         int mop = op->o_tag == LDAP_REQ_ADD
 679                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 680
 681         assert( modtail != NULL );
 682         assert( *modtail == NULL );
 683
 684         if( SLAP_LASTMOD(be) ) {
 685                 struct tm *ltm;
 686                 time_t now = slap_get_time();
 687
 688                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 689                 ltm = gmtime( &now );
 690                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 691
 692                 csn.bv_len = lutil_csnstr( csnbuf, sizeof( csnbuf ), 0, 0 );
 693                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 694                 csn.bv_val = csnbuf;
 695
 696                 timestamp.bv_val = timebuf;
 697                 timestamp.bv_len = strlen(timebuf);
 698
 699                 if( op->o_dn.bv_len == 0 ) {
 700                         name.bv_val = SLAPD_ANONYMOUS;
 701                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 702 #ifdef SLAP_NVALUES
 703                         nname = name;
 704 #endif
 705                 } else {
 706                         name = op->o_dn;
 707 #ifdef SLAP_NVALUES
 708                         nname = op->o_ndn;
 709 #endif
 710                 }
 711         }
 712
 713         if( op->o_tag == LDAP_REQ_ADD ) {
 714                 struct berval tmpval;
 715
 716                 if( global_schemacheck ) {
 717                         int rc = mods_structural_class( mods, &tmpval,
 718                                 text, textbuf, textlen );
 719                         if( rc != LDAP_SUCCESS ) {
 720                                 return rc;
 721                         }
 722
 723                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 724                         mod->sml_op = mop;
 725                         mod->sml_type.bv_val = NULL;
 726                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 727                         mod->sml_values =
 728                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 729                         ber_dupbv( &mod->sml_values[0], &tmpval );
 730                         mod->sml_values[1].bv_len = 0;
 731                         mod->sml_values[1].bv_val = NULL;
 732                         assert( mod->sml_values[0].bv_val );
 733 #ifdef SLAP_NVALUES
 734                         mod->sml_nvalues =
 735                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 736                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 737                         mod->sml_nvalues[1].bv_len = 0;
 738                         mod->sml_nvalues[1].bv_val = NULL;
 739                         assert( mod->sml_nvalues[0].bv_val );
 740 #endif
 741                         *modtail = mod;
 742                         modtail = &mod->sml_next;
 743                 }
 744
 745                 if( SLAP_LASTMOD(be) ) {
 746                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 747
 748                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 749                         tmpval.bv_val = uuidbuf;
 750
 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_entryUUID;
 755                         mod->sml_values =
 756                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 757                         ber_dupbv( &mod->sml_values[0], &tmpval );
 758                         mod->sml_values[1].bv_len = 0;
 759                         mod->sml_values[1].bv_val = NULL;
 760                         assert( mod->sml_values[0].bv_val );
 761 #ifdef SLAP_NVALUES
 762                         mod->sml_nvalues = NULL;
 763 #endif
 764                         *modtail = mod;
 765                         modtail = &mod->sml_next;
 766
 767                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 768                         mod->sml_op = mop;
 769                         mod->sml_type.bv_val = NULL;
 770                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 771                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 772                         ber_dupbv( &mod->sml_values[0], &name );
 773                         mod->sml_values[1].bv_len = 0;
 774                         mod->sml_values[1].bv_val = NULL;
 775                         assert( mod->sml_values[0].bv_val );
 776 #ifdef SLAP_NVALUES
 777                         mod->sml_nvalues =
 778                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 779                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 780                         mod->sml_nvalues[1].bv_len = 0;
 781                         mod->sml_nvalues[1].bv_val = NULL;
 782                         assert( mod->sml_nvalues[0].bv_val );
 783 #endif
 784                         *modtail = mod;
 785                         modtail = &mod->sml_next;
 786
 787                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 788                         mod->sml_op = mop;
 789                         mod->sml_type.bv_val = NULL;
 790                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 791                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 792                         ber_dupbv( &mod->sml_values[0], &timestamp );
 793                         mod->sml_values[1].bv_len = 0;
 794                         mod->sml_values[1].bv_val = NULL;
 795                         assert( mod->sml_values[0].bv_val );
 796 #ifdef SLAP_NVALUES
 797                         mod->sml_nvalues = NULL;
 798 #endif
 799                         *modtail = mod;
 800                         modtail = &mod->sml_next;
 801                 }
 802         }
 803
 804         if( SLAP_LASTMOD(be) ) {
 805                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 806                 mod->sml_op = mop;
 807                 mod->sml_type.bv_val = NULL;
 808                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 809                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 810                 ber_dupbv( &mod->sml_values[0], &csn );
 811                 mod->sml_values[1].bv_len = 0;
 812                 mod->sml_values[1].bv_val = NULL;
 813                 assert( mod->sml_values[0].bv_val );
 814 #ifdef SLAP_NVALUES
 815                 mod->sml_nvalues = NULL;
 816 #endif
 817                 *modtail = mod;
 818                 modtail = &mod->sml_next;
 819
 820                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 821                 mod->sml_op = mop;
 822                 mod->sml_type.bv_val = NULL;
 823                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 824                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 825                 ber_dupbv( &mod->sml_values[0], &name );
 826                 mod->sml_values[1].bv_len = 0;
 827                 mod->sml_values[1].bv_val = NULL;
 828                 assert( mod->sml_values[0].bv_val );
 829 #ifdef SLAP_NVALUES
 830                 mod->sml_nvalues =
 831                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 832                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 833                 mod->sml_nvalues[1].bv_len = 0;
 834                 mod->sml_nvalues[1].bv_val = NULL;
 835                 assert( mod->sml_nvalues[0].bv_val );
 836 #endif
 837                 *modtail = mod;
 838                 modtail = &mod->sml_next;
 839
 840                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 841                 mod->sml_op = mop;
 842                 mod->sml_type.bv_val = NULL;
 843                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 844                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 845                 ber_dupbv( &mod->sml_values[0], &timestamp );
 846                 mod->sml_values[1].bv_len = 0;
 847                 mod->sml_values[1].bv_val = NULL;
 848                 assert( mod->sml_values[0].bv_val );
 849 #ifdef SLAP_NVALUES
 850                 mod->sml_nvalues = NULL;
 851 #endif
 852                 *modtail = mod;
 853                 modtail = &mod->sml_next;
 854         }
 855
 856         *modtail = NULL;
 857         return LDAP_SUCCESS;
 858 }
 859