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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright (c) 1995 Regents of the University of Michigan.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * provided that this notice is preserved and that due credit is given
  12  * to the University of Michigan at Ann Arbor. The name of the University
  13  * may not be used to endorse or promote products derived from this
  14  * software without specific prior written permission. This software
  15  * is provided ``as is'' without express or implied warranty.
  16  */
  17
  18 #include "portable.h"
  19
  20 #include <stdio.h>
  21
  22 #include <ac/socket.h>
  23 #include <ac/string.h>
  24 #include <ac/time.h>
  25
  26 #include "ldap_pvt.h"
  27 #include "slap.h"
  28 #ifdef LDAP_SLAPI
  29 #include "slapi.h"
  30 #endif
  31 #include "lutil.h"
  32
  33
  34 int
  35 do_modify(
  36     Operation   *op,
  37     SlapReply   *rs )
  38 {
  39         struct berval dn = { 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         int manageDSAit;
  53         int increment = 0;
  54
  55 #ifdef NEW_LOGGING
  56         LDAP_LOG( OPERATION, ENTRY, "do_modify: enter\n", 0, 0, 0 );
  57 #else
  58         Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
  59 #endif
  60
  61         /*
  62          * Parse the modify request.  It looks like this:
  63          *
  64          *      ModifyRequest := [APPLICATION 6] SEQUENCE {
  65          *              name    DistinguishedName,
  66          *              mods    SEQUENCE OF SEQUENCE {
  67          *                      operation       ENUMERATED {
  68          *                              add     (0),
  69          *                              delete  (1),
  70          *                              replace (2)
  71          *                      },
  72          *                      modification    SEQUENCE {
  73          *                              type    AttributeType,
  74          *                              values  SET OF AttributeValue
  75          *                      }
  76          *              }
  77          *      }
  78          */
  79
  80         if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
  81 #ifdef NEW_LOGGING
  82                 LDAP_LOG( OPERATION, ERR, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  83 #else
  84                 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
  85 #endif
  86
  87                 send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
  88                 return SLAPD_DISCONNECT;
  89         }
  90
  91 #ifdef NEW_LOGGING
  92         LDAP_LOG( OPERATION, ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  93 #else
  94         Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn.bv_val, 0, 0 );
  95 #endif
  96
  97
  98         /* collect modifications & save for later */
  99
 100         for ( tag = ber_first_element( op->o_ber, &len, &last );
 101             tag != LBER_DEFAULT;
 102             tag = ber_next_element( op->o_ber, &len, last ) )
 103         {
 104                 ber_int_t mop;
 105                 Modifications tmp, *mod;
 106
 107                 tmp.sml_nvalues = NULL;
 108
 109                 if ( ber_scanf( op->o_ber, "{i{m[W]}}", &mop,
 110                     &tmp.sml_type, &tmp.sml_values )
 111                     == LBER_ERROR )
 112                 {
 113                         send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding modlist error" );
 114                         rs->sr_err = SLAPD_DISCONNECT;
 115                         goto cleanup;
 116                 }
 117
 118                 mod = (Modifications *) ch_malloc( sizeof(Modifications) );
 119                 mod->sml_op = mop;
 120                 mod->sml_type = tmp.sml_type;
 121                 mod->sml_values = tmp.sml_values;
 122                 mod->sml_nvalues = NULL;
 123                 mod->sml_desc = NULL;
 124                 mod->sml_next = NULL;
 125                 *modtail = mod;
 126
 127                 switch( mop ) {
 128                 case LDAP_MOD_ADD:
 129                         if ( mod->sml_values == NULL ) {
 130 #ifdef NEW_LOGGING
 131                                 LDAP_LOG( OPERATION, ERR,
 132                                         "do_modify: modify/add operation (%ld) requires values\n",
 133                                         (long)mop, 0, 0 );
 134 #else
 135                                 Debug( LDAP_DEBUG_ANY,
 136                                         "do_modify: modify/add operation (%ld) requires values\n",
 137                                         (long) mop, 0, 0 );
 138 #endif
 139
 140                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 141                                         "modify/add operation requires values" );
 142                                 goto cleanup;
 143                         }
 144
 145                         /* fall through */
 146
 147                 case LDAP_MOD_DELETE:
 148                 case LDAP_MOD_REPLACE:
 149                         break;
 150
 151                 case LDAP_MOD_INCREMENT:
 152                         if( op->o_protocol >= LDAP_VERSION3 ) {
 153                                 increment++;
 154                                 if ( mod->sml_values == NULL ) {
 155 #ifdef NEW_LOGGING
 156                                         LDAP_LOG( OPERATION, ERR, "do_modify: "
 157                                                 "modify/increment operation (%ld) requires value\n",
 158                                                 (long)mop, 0, 0 );
 159 #else
 160                                         Debug( LDAP_DEBUG_ANY, "do_modify: "
 161                                                 "modify/increment operation (%ld) requires value\n",
 162                                                 (long) mop, 0, 0 );
 163 #endif
 164
 165                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 166                                                 "modify/increment operation requires value" );
 167                                         goto cleanup;
 168                                 }
 169
 170                                 if( mod->sml_values[1].bv_val ) {
 171 #ifdef NEW_LOGGING
 172                                         LDAP_LOG( OPERATION, ERR, "do_modify: modify/increment "
 173                                                 "operation (%ld) requires single value\n",
 174                                                 (long)mop, 0, 0 );
 175 #else
 176                                         Debug( LDAP_DEBUG_ANY, "do_modify: modify/increment "
 177                                                 "operation (%ld) requires single value\n",
 178                                                 (long) mop, 0, 0 );
 179 #endif
 180
 181                                         send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 182                                                 "modify/increment operation requires single value" );
 183                                         goto cleanup;
 184                                 }
 185
 186                                 break;
 187                         }
 188                         /* fall thru */
 189
 190                 default: {
 191 #ifdef NEW_LOGGING
 192                                 LDAP_LOG( OPERATION, ERR,
 193                                         "do_modify: unrecognized modify operation (%ld)\n",
 194                                         (long)mop, 0, 0 );
 195 #else
 196                                 Debug( LDAP_DEBUG_ANY,
 197                                         "do_modify: unrecognized modify operation (%ld)\n",
 198                                         (long) mop, 0, 0 );
 199 #endif
 200
 201                                 send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
 202                                         "unrecognized modify operation" );
 203                                 goto cleanup;
 204                         }
 205                 }
 206
 207                 modtail = &mod->sml_next;
 208         }
 209         *modtail = NULL;
 210
 211         if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
 212 #ifdef NEW_LOGGING
 213                 LDAP_LOG( OPERATION, ERR, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 214 #else
 215                 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
 216 #endif
 217
 218                 goto cleanup;
 219         }
 220
 221         rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
 222                 op->o_tmpmemctx );
 223         if( rs->sr_err != LDAP_SUCCESS ) {
 224 #ifdef NEW_LOGGING
 225                 LDAP_LOG( OPERATION, INFO, "do_modify: conn %d  invalid dn (%s)\n",
 226                         op->o_connid, dn.bv_val, 0 );
 227 #else
 228                 Debug( LDAP_DEBUG_ANY,
 229                         "do_modify: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 230 #endif
 231                 send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
 232                 goto cleanup;
 233         }
 234
 235         if( op->o_req_ndn.bv_len == 0 ) {
 236 #ifdef NEW_LOGGING
 237                 LDAP_LOG( OPERATION, ERR,
 238                         "do_modify: attempt to modify root DSE.\n",0, 0, 0 );
 239 #else
 240                 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
 241 #endif
 242
 243                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 244                         "modify upon the root DSE not supported" );
 245                 goto cleanup;
 246
 247         } else if ( bvmatch( &op->o_req_ndn, &global_schemandn ) ) {
 248 #ifdef NEW_LOGGING
 249                 LDAP_LOG( OPERATION, ERR,
 250                         "do_modify: attempt to modify subschema subentry.\n" , 0, 0, 0  );
 251 #else
 252                 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
 253 #endif
 254
 255                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 256                         "modification of subschema subentry not supported" );
 257                 goto cleanup;
 258         }
 259
 260 #ifdef LDAP_DEBUG
 261 #ifdef NEW_LOGGING
 262         LDAP_LOG( OPERATION, DETAIL1, "do_modify: modifications:\n", 0, 0, 0  );
 263 #else
 264         Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
 265 #endif
 266
 267         for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 268 #ifdef NEW_LOGGING
 269                 LDAP_LOG( OPERATION, DETAIL1, "\t%s:  %s\n",
 270                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 271                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 272                                         (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 273                                                 "replace")), tmp->sml_type.bv_val, 0 );
 274
 275                 if ( tmp->sml_values == NULL ) {
 276                         LDAP_LOG( OPERATION, DETAIL1, "\t\tno values", 0, 0, 0 );
 277                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 278                         LDAP_LOG( OPERATION, DETAIL1, "\t\tzero values", 0, 0, 0 );
 279                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 280                         LDAP_LOG( OPERATION, DETAIL1, "\t\tone value", 0, 0, 0 );
 281                 } else {
 282                         LDAP_LOG( OPERATION, DETAIL1, "\t\tmultiple values", 0, 0, 0 );
 283                 }
 284
 285 #else
 286                 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
 287                         tmp->sml_op == LDAP_MOD_ADD ? "add" :
 288                                 (tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
 289                                 (tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
 290                                         "replace")), tmp->sml_type.bv_val, 0 );
 291
 292                 if ( tmp->sml_values == NULL ) {
 293                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 294                            "\t\tno values", NULL, NULL );
 295                 } else if ( tmp->sml_values[0].bv_val == NULL ) {
 296                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 297                            "\t\tzero values", NULL, NULL );
 298                 } else if ( tmp->sml_values[1].bv_val == NULL ) {
 299                         Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
 300                            "\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
 301                 } else {
 302                         Debug( LDAP_DEBUG_ARGS, "%s\n",
 303                            "\t\tmultiple values", NULL, NULL );
 304                 }
 305 #endif
 306         }
 307
 308         if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
 309                 char abuf[BUFSIZ/2], *ptr = abuf;
 310                 int len = 0;
 311
 312                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD dn=\"%s\"\n",
 313                         op->o_connid, op->o_opid, dn.bv_val, 0, 0 );
 314
 315                 for ( tmp = modlist; tmp != NULL; tmp = tmp->sml_next ) {
 316                         if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
 317                                 Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 318                                     op->o_connid, op->o_opid, abuf, 0, 0 );
 319                                 len = 0;
 320                                 ptr = abuf;
 321                         }
 322                         if (len) {
 323                                 *ptr++ = ' ';
 324                                 len++;
 325                         }
 326                         ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
 327                         len += tmp->sml_type.bv_len;
 328                 }
 329                 if (len) {
 330                         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu MOD attr=%s\n",
 331                                 op->o_connid, op->o_opid, abuf, 0, 0 );
 332                 }
 333         }
 334 #endif  /* LDAP_DEBUG */
 335
 336         manageDSAit = get_manageDSAit( op );
 337
 338         /*
 339          * We could be serving multiple database backends.  Select the
 340          * appropriate one, or send a referral to our "referral server"
 341          * if we don't hold it.
 342          */
 343         op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
 344         if ( op->o_bd == NULL ) {
 345                 rs->sr_ref = referral_rewrite( default_referral,
 346                         NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 347                 if (!rs->sr_ref) rs->sr_ref = default_referral;
 348
 349                 if (rs->sr_ref != NULL ) {
 350                         rs->sr_err = LDAP_REFERRAL;
 351                         send_ldap_result( op, rs );
 352
 353                         if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
 354                 } else {
 355                         send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 356                                 "referral missing" );
 357                 }
 358                 goto cleanup;
 359         }
 360
 361         /* check restrictions */
 362         if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
 363                 send_ldap_result( op, rs );
 364                 goto cleanup;
 365         }
 366
 367         /* check for referrals */
 368         if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
 369                 goto cleanup;
 370         }
 371
 372         /* check for modify/increment support */
 373         if( increment && !SLAP_INCREMENT( op->o_bd ) ) {
 374                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 375                         "modify/increment not supported in context" );
 376         }
 377
 378 #if defined( LDAP_SLAPI )
 379         slapi_x_pblock_set_operation( pb, op );
 380         slapi_pblock_set( pb, SLAPI_MODIFY_TARGET, (void *)dn.bv_val );
 381         slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
 382         modv = slapi_x_modifications2ldapmods( &modlist );
 383         slapi_pblock_set( pb, SLAPI_MODIFY_MODS, (void *)modv );
 384
 385         rs->sr_err = doPluginFNs( op->o_bd, SLAPI_PLUGIN_PRE_MODIFY_FN, pb );
 386         if ( rs->sr_err < 0 ) {
 387                 /*
 388                  * A preoperation plugin failure will abort the
 389                  * entire operation.
 390                  */
 391 #ifdef NEW_LOGGING
 392                 LDAP_LOG( OPERATION, INFO, "do_modify: modify preoperation plugin "
 393                                 "failed\n", 0, 0, 0 );
 394 #else
 395                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify preoperation plugin failed.\n",
 396                                 0, 0, 0);
 397 #endif
 398                 if ( ( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE, (void *)&rs->sr_err ) != 0 )  ||
 399                      rs->sr_err == LDAP_SUCCESS ) {
 400                         rs->sr_err = LDAP_OTHER;
 401                 }
 402                 slapi_x_free_ldapmods( modv );
 403                 modv = NULL;
 404                 goto cleanup;
 405         }
 406
 407         /*
 408          * It's possible that the preoperation plugin changed the
 409          * modification array, so we need to convert it back to
 410          * a Modification list.
 411          *
 412          * Calling slapi_x_modifications2ldapmods() destroyed modlist so
 413          * we don't need to free it.
 414          */
 415         slapi_pblock_get( pb, SLAPI_MODIFY_MODS, (void **)&modv );
 416         modlist = slapi_x_ldapmods2modifications( modv );
 417
 418         /*
 419          * NB: it is valid for the plugin to return no modifications
 420          * (for example, a plugin might store some attributes elsewhere
 421          * and remove them from the modification list; if only those
 422          * attribute types were included in the modification request,
 423          * then slapi_x_ldapmods2modifications() above will return
 424          * NULL).
 425          *
 426          * However, the post-operation plugin should still be
 427          * called.
 428          */
 429         if ( modlist == NULL ) {
 430                 rs->sr_err = LDAP_SUCCESS;
 431                 send_ldap_result( op, rs );
 432         } else {
 433 #endif /* defined( LDAP_SLAPI ) */
 434
 435         /*
 436          * do the modify if 1 && (2 || 3)
 437          * 1) there is a modify function implemented in this backend;
 438          * 2) this backend is master for what it holds;
 439          * 3) it's a replica and the dn supplied is the update_ndn.
 440          */
 441         if ( op->o_bd->be_modify ) {
 442                 /* do the update here */
 443                 int repl_user = be_isupdate( op->o_bd, &op->o_ndn );
 444
 445                 /* Multimaster slapd does not have to check for replicator dn
 446                  * because it accepts each modify request
 447                  */
 448 #ifndef SLAPD_MULTIMASTER
 449                 if ( !op->o_bd->syncinfo &&
 450                         ( !op->o_bd->be_update_ndn.bv_len || repl_user ))
 451 #else
 452                 if ( !op->o_bd->syncinfo )
 453 #endif
 454                 {
 455                         int update = op->o_bd->be_update_ndn.bv_len;
 456                         char textbuf[SLAP_TEXT_BUFLEN];
 457                         size_t textlen = sizeof textbuf;
 458
 459                         rs->sr_err = slap_mods_check( modlist, update, &rs->sr_text,
 460                                 textbuf, textlen, NULL );
 461
 462                         if( rs->sr_err != LDAP_SUCCESS ) {
 463                                 send_ldap_result( op, rs );
 464                                 goto cleanup;
 465                         }
 466
 467                         if ( !repl_user ) {
 468                                 for( modtail = &modlist;
 469                                         *modtail != NULL;
 470                                         modtail = &(*modtail)->sml_next )
 471                                 {
 472                                         /* empty */
 473                                 }
 474
 475                                 rs->sr_err = slap_mods_opattrs( op, modlist, modtail,
 476                                         &rs->sr_text, textbuf, textlen );
 477                                 if( rs->sr_err != LDAP_SUCCESS ) {
 478                                         send_ldap_result( op, rs );
 479                                         goto cleanup;
 480                                 }
 481                         }
 482
 483                         op->orm_modlist = modlist;
 484                         if ( (op->o_bd->be_modify)( op, rs ) == 0
 485 #ifdef SLAPD_MULTIMASTER
 486                                 && !repl_user
 487 #endif
 488                         ) {
 489                                 /* but we log only the ones not from a replicator user */
 490                                 replog( op );
 491                         }
 492
 493 #ifndef SLAPD_MULTIMASTER
 494                 /* send a referral */
 495                 } else {
 496                         BerVarray defref = NULL;
 497                         if ( op->o_bd->syncinfo ) {
 498                                 defref = op->o_bd->syncinfo->provideruri_bv;
 499                         } else {
 500                                 defref = op->o_bd->be_update_refs
 501                                                 ? op->o_bd->be_update_refs : default_referral;
 502                         }
 503                         if ( defref != NULL ) {
 504                                 rs->sr_ref = referral_rewrite( defref,
 505                                         NULL, &op->o_req_dn,
 506                                         LDAP_SCOPE_DEFAULT );
 507                                 if (!rs->sr_ref) rs->sr_ref = defref;
 508                                 rs->sr_err = LDAP_REFERRAL;
 509                                 send_ldap_result( op, rs );
 510                                 if (rs->sr_ref != defref) {
 511                                         ber_bvarray_free( rs->sr_ref );
 512                                 }
 513                         } else {
 514                                 send_ldap_error( op, rs,
 515                                                 LDAP_UNWILLING_TO_PERFORM,
 516                                                 "referral missing" );
 517                         }
 518 #endif
 519                 }
 520         } else {
 521                 send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
 522                     "operation not supported within namingContext" );
 523         }
 524
 525 #if defined( LDAP_SLAPI )
 526         } /* modlist != NULL */
 527
 528         if ( doPluginFNs( op->o_bd, SLAPI_PLUGIN_POST_MODIFY_FN, pb ) < 0 ) {
 529 #ifdef NEW_LOGGING
 530                 LDAP_LOG( OPERATION, INFO, "do_modify: modify postoperation plugins "
 531                                 "failed\n", 0, 0, 0 );
 532 #else
 533                 Debug(LDAP_DEBUG_TRACE, "do_modify: modify postoperation plugins "
 534                                 "failed.\n", 0, 0, 0);
 535 #endif
 536         }
 537 #endif /* defined( LDAP_SLAPI ) */
 538
 539 cleanup:
 540
 541         slap_graduate_commit_csn( op );
 542
 543         op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
 544         op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
 545         if ( modlist != NULL ) slap_mods_free( modlist );
 546 #if defined( LDAP_SLAPI )
 547         if ( modv != NULL ) slapi_x_free_ldapmods( modv );
 548 #endif
 549         return rs->sr_err;
 550 }
 551
 552 /*
 553  * Do basic attribute type checking and syntax validation.
 554  */
 555 int slap_mods_check(
 556         Modifications *ml,
 557         int update,
 558         const char **text,
 559         char *textbuf,
 560         size_t textlen,
 561         void *ctx )
 562 {
 563         int rc;
 564
 565         for( ; ml != NULL; ml = ml->sml_next ) {
 566                 AttributeDescription *ad = NULL;
 567
 568                 /* convert to attribute description */
 569                 rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
 570
 571                 if( rc != LDAP_SUCCESS ) {
 572                         snprintf( textbuf, textlen, "%s: %s",
 573                                 ml->sml_type.bv_val, *text );
 574                         *text = textbuf;
 575                         return rc;
 576                 }
 577
 578                 ad = ml->sml_desc;
 579
 580                 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 581                         && !slap_ad_is_binary( ad ))
 582                 {
 583                         /* attribute requires binary transfer */
 584                         snprintf( textbuf, textlen,
 585                                 "%s: requires ;binary transfer",
 586                                 ml->sml_type.bv_val );
 587                         *text = textbuf;
 588                         return LDAP_UNDEFINED_TYPE;
 589                 }
 590
 591                 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
 592                         && slap_ad_is_binary( ad ))
 593                 {
 594                         /* attribute requires binary transfer */
 595                         snprintf( textbuf, textlen,
 596                                 "%s: disallows ;binary transfer",
 597                                 ml->sml_type.bv_val );
 598                         *text = textbuf;
 599                         return LDAP_UNDEFINED_TYPE;
 600                 }
 601
 602                 if( slap_ad_is_tag_range( ad )) {
 603                         /* attribute requires binary transfer */
 604                         snprintf( textbuf, textlen,
 605                                 "%s: inappropriate use of tag range option",
 606                                 ml->sml_type.bv_val );
 607                         *text = textbuf;
 608                         return LDAP_UNDEFINED_TYPE;
 609                 }
 610
 611                 if (!update && is_at_no_user_mod( ad->ad_type )) {
 612                         /* user modification disallowed */
 613                         snprintf( textbuf, textlen,
 614                                 "%s: no user modification allowed",
 615                                 ml->sml_type.bv_val );
 616                         *text = textbuf;
 617                         return LDAP_CONSTRAINT_VIOLATION;
 618                 }
 619
 620                 if ( is_at_obsolete( ad->ad_type ) &&
 621                         (( ml->sml_op != LDAP_MOD_REPLACE &&
 622                                 ml->sml_op != LDAP_MOD_DELETE ) ||
 623                                         ml->sml_values != NULL ))
 624                 {
 625                         /*
 626                          * attribute is obsolete,
 627                          * only allow replace/delete with no values
 628                          */
 629                         snprintf( textbuf, textlen,
 630                                 "%s: attribute is obsolete",
 631                                 ml->sml_type.bv_val );
 632                         *text = textbuf;
 633                         return LDAP_CONSTRAINT_VIOLATION;
 634                 }
 635
 636                 if ( ml->sml_op == LDAP_MOD_INCREMENT &&
 637 #ifdef SLAPD_REAL_SYNTAX
 638                         !is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
 639 #endif
 640                         !is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
 641                 {
 642                         /*
 643                          * attribute values must be INTEGER or REAL
 644                          */
 645                         snprintf( textbuf, textlen,
 646                                 "%s: attribute syntax inappropriate for increment",
 647                                 ml->sml_type.bv_val );
 648                         *text = textbuf;
 649                         return LDAP_CONSTRAINT_VIOLATION;
 650                 }
 651
 652                 /*
 653                  * check values
 654                  */
 655                 if( ml->sml_values != NULL ) {
 656                         ber_len_t nvals;
 657                         slap_syntax_validate_func *validate =
 658                                 ad->ad_type->sat_syntax->ssyn_validate;
 659                         slap_syntax_transform_func *pretty =
 660                                 ad->ad_type->sat_syntax->ssyn_pretty;
 661
 662                         if( !pretty && !validate ) {
 663                                 *text = "no validator for syntax";
 664                                 snprintf( textbuf, textlen,
 665                                         "%s: no validator for syntax %s",
 666                                         ml->sml_type.bv_val,
 667                                         ad->ad_type->sat_syntax->ssyn_oid );
 668                                 *text = textbuf;
 669                                 return LDAP_INVALID_SYNTAX;
 670                         }
 671
 672                         /*
 673                          * check that each value is valid per syntax
 674                          *      and pretty if appropriate
 675                          */
 676                         for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 677                                 struct berval pval;
 678                                 if( pretty ) {
 679                                         rc = pretty( ad->ad_type->sat_syntax,
 680                                                 &ml->sml_values[nvals], &pval, ctx );
 681                                 } else {
 682                                         rc = validate( ad->ad_type->sat_syntax,
 683                                                 &ml->sml_values[nvals] );
 684                                 }
 685
 686                                 if( rc != 0 ) {
 687                                         snprintf( textbuf, textlen,
 688                                                 "%s: value #%ld invalid per syntax",
 689                                                 ml->sml_type.bv_val, (long) nvals );
 690                                         *text = textbuf;
 691                                         return LDAP_INVALID_SYNTAX;
 692                                 }
 693
 694                                 if( pretty ) {
 695                                         ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
 696                                         ml->sml_values[nvals] = pval;
 697                                 }
 698                         }
 699
 700                         /*
 701                          * a rough single value check... an additional check is needed
 702                          * to catch add of single value to existing single valued attribute
 703                          */
 704                         if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
 705                                 && nvals > 1 && is_at_single_value( ad->ad_type ))
 706                         {
 707                                 snprintf( textbuf, textlen,
 708                                         "%s: multiple values provided",
 709                                         ml->sml_type.bv_val );
 710                                 *text = textbuf;
 711                                 return LDAP_CONSTRAINT_VIOLATION;
 712                         }
 713
 714                         /* if the type has a normalizer, generate the
 715                          * normalized values. otherwise leave them NULL.
 716                          *
 717                          * this is different from the rule for attributes
 718                          * in an entry - in an attribute list, the normalized
 719                          * value is set equal to the non-normalized value
 720                          * when there is no normalizer.
 721                          */
 722                         if( nvals && ad->ad_type->sat_equality &&
 723                                 ad->ad_type->sat_equality->smr_normalize )
 724                         {
 725                                 ml->sml_nvalues = ber_memalloc_x(
 726                                         (nvals+1)*sizeof(struct berval), ctx );
 727
 728                                 for( nvals = 0; ml->sml_values[nvals].bv_val; nvals++ ) {
 729                                         rc = ad->ad_type->sat_equality->smr_normalize(
 730                                                 0,
 731                                                 ad->ad_type->sat_syntax,
 732                                                 ad->ad_type->sat_equality,
 733                                                 &ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
 734                                         if( rc ) {
 735 #ifdef NEW_LOGGING
 736                                                 LDAP_LOG( OPERATION, DETAIL1,
 737                                                         "str2entry:  NULL (ssyn_normalize %d)\n",
 738                                                         rc, 0, 0 );
 739 #else
 740                                                 Debug( LDAP_DEBUG_ANY,
 741                                                         "<= str2entry NULL (ssyn_normalize %d)\n",
 742                                                         rc, 0, 0 );
 743 #endif
 744                                                 snprintf( textbuf, textlen,
 745                                                         "%s: value #%ld normalization failed",
 746                                                         ml->sml_type.bv_val, (long) nvals );
 747                                                 *text = textbuf;
 748                                                 return rc;
 749                                         }
 750                                 }
 751
 752                                 ml->sml_nvalues[nvals].bv_val = NULL;
 753                                 ml->sml_nvalues[nvals].bv_len = 0;
 754                         }
 755                 }
 756         }
 757
 758         return LDAP_SUCCESS;
 759 }
 760
 761 int slap_mods_opattrs(
 762         Operation *op,
 763         Modifications *mods,
 764         Modifications **modtail,
 765         const char **text,
 766         char *textbuf, size_t textlen )
 767 {
 768         struct berval name, timestamp, csn;
 769         struct berval nname;
 770         char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 771         char csnbuf[ LDAP_LUTIL_CSNSTR_BUFSIZE ];
 772         Modifications *mod;
 773
 774         int mop = op->o_tag == LDAP_REQ_ADD
 775                 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
 776
 777         assert( modtail != NULL );
 778         assert( *modtail == NULL );
 779
 780         if ( SLAP_LASTMOD( op->o_bd )) {
 781                 struct tm *ltm;
 782                 time_t now = slap_get_time();
 783
 784                 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 785                 ltm = gmtime( &now );
 786                 lutil_gentime( timebuf, sizeof(timebuf), ltm );
 787
 788                 slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, 1 );
 789
 790                 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 791
 792                 timestamp.bv_val = timebuf;
 793                 timestamp.bv_len = strlen(timebuf);
 794
 795                 if( op->o_dn.bv_len == 0 ) {
 796                         name.bv_val = SLAPD_ANONYMOUS;
 797                         name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
 798                         nname = name;
 799                 } else {
 800                         name = op->o_dn;
 801                         nname = op->o_ndn;
 802                 }
 803         }
 804
 805         if( op->o_tag == LDAP_REQ_ADD ) {
 806                 struct berval tmpval;
 807
 808                 if( global_schemacheck ) {
 809                         int rc = mods_structural_class( mods, &tmpval,
 810                                 text, textbuf, textlen );
 811                         if( rc != LDAP_SUCCESS ) return rc;
 812
 813                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 814                         mod->sml_op = mop;
 815                         mod->sml_type.bv_val = NULL;
 816                         mod->sml_desc = slap_schema.si_ad_structuralObjectClass;
 817                         mod->sml_values =
 818                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 819                         ber_dupbv( &mod->sml_values[0], &tmpval );
 820                         mod->sml_values[1].bv_len = 0;
 821                         mod->sml_values[1].bv_val = NULL;
 822                         assert( mod->sml_values[0].bv_val );
 823                         mod->sml_nvalues =
 824                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 825                         ber_dupbv( &mod->sml_nvalues[0], &tmpval );
 826                         mod->sml_nvalues[1].bv_len = 0;
 827                         mod->sml_nvalues[1].bv_val = NULL;
 828                         assert( mod->sml_nvalues[0].bv_val );
 829                         *modtail = mod;
 830                         modtail = &mod->sml_next;
 831                 }
 832
 833                 if ( SLAP_LASTMOD( op->o_bd )) {
 834                         char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
 835
 836                         tmpval.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
 837                         tmpval.bv_val = uuidbuf;
 838
 839                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 840                         mod->sml_op = mop;
 841                         mod->sml_type.bv_val = NULL;
 842                         mod->sml_desc = slap_schema.si_ad_entryUUID;
 843                         mod->sml_values =
 844                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 845                         ber_dupbv( &mod->sml_values[0], &tmpval );
 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                         mod->sml_nvalues = NULL;
 850                         *modtail = mod;
 851                         modtail = &mod->sml_next;
 852
 853                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 854                         mod->sml_op = mop;
 855                         mod->sml_type.bv_val = NULL;
 856                         mod->sml_desc = slap_schema.si_ad_creatorsName;
 857                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 858                         ber_dupbv( &mod->sml_values[0], &name );
 859                         mod->sml_values[1].bv_len = 0;
 860                         mod->sml_values[1].bv_val = NULL;
 861                         assert( mod->sml_values[0].bv_val );
 862                         mod->sml_nvalues =
 863                                 (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 864                         ber_dupbv( &mod->sml_nvalues[0], &nname );
 865                         mod->sml_nvalues[1].bv_len = 0;
 866                         mod->sml_nvalues[1].bv_val = NULL;
 867                         assert( mod->sml_nvalues[0].bv_val );
 868                         *modtail = mod;
 869                         modtail = &mod->sml_next;
 870
 871                         mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 872                         mod->sml_op = mop;
 873                         mod->sml_type.bv_val = NULL;
 874                         mod->sml_desc = slap_schema.si_ad_createTimestamp;
 875                         mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 876                         ber_dupbv( &mod->sml_values[0], &timestamp );
 877                         mod->sml_values[1].bv_len = 0;
 878                         mod->sml_values[1].bv_val = NULL;
 879                         assert( mod->sml_values[0].bv_val );
 880                         mod->sml_nvalues = NULL;
 881                         *modtail = mod;
 882                         modtail = &mod->sml_next;
 883                 }
 884         }
 885
 886         if ( SLAP_LASTMOD( op->o_bd )) {
 887                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 888                 mod->sml_op = mop;
 889                 mod->sml_type.bv_val = NULL;
 890                 mod->sml_desc = slap_schema.si_ad_entryCSN;
 891                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 892                 ber_dupbv( &mod->sml_values[0], &csn );
 893                 mod->sml_values[1].bv_len = 0;
 894                 mod->sml_values[1].bv_val = NULL;
 895                 assert( mod->sml_values[0].bv_val );
 896                 mod->sml_nvalues = NULL;
 897                 *modtail = mod;
 898                 modtail = &mod->sml_next;
 899
 900                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 901                 mod->sml_op = mop;
 902                 mod->sml_type.bv_val = NULL;
 903                 mod->sml_desc = slap_schema.si_ad_modifiersName;
 904                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 905                 ber_dupbv( &mod->sml_values[0], &name );
 906                 mod->sml_values[1].bv_len = 0;
 907                 mod->sml_values[1].bv_val = NULL;
 908                 assert( mod->sml_values[0].bv_val );
 909                 mod->sml_nvalues =
 910                         (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 911                 ber_dupbv( &mod->sml_nvalues[0], &nname );
 912                 mod->sml_nvalues[1].bv_len = 0;
 913                 mod->sml_nvalues[1].bv_val = NULL;
 914                 assert( mod->sml_nvalues[0].bv_val );
 915                 *modtail = mod;
 916                 modtail = &mod->sml_next;
 917
 918                 mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
 919                 mod->sml_op = mop;
 920                 mod->sml_type.bv_val = NULL;
 921                 mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
 922                 mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
 923                 ber_dupbv( &mod->sml_values[0], &timestamp );
 924                 mod->sml_values[1].bv_len = 0;
 925                 mod->sml_values[1].bv_val = NULL;
 926                 assert( mod->sml_values[0].bv_val );
 927                 mod->sml_nvalues = NULL;
 928                 *modtail = mod;
 929                 modtail = &mod->sml_next;
 930         }
 931
 932         *modtail = NULL;
 933         return LDAP_SUCCESS;
 934 }
 935