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

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 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 #include <ac/string.h>
  22 #include <ac/time.h>
  23 #include <ac/socket.h>
  24
  25 #include "ldap_pvt.h"
  26 #include "slap.h"
  27
  28 static int slap_mods2entry(
  29         Modifications *mods,
  30         Entry **e,
  31         int repl_user,
  32         const char **text,
  33         char *textbuf, size_t textlen );
  34
  35 int
  36 do_add( Connection *conn, Operation *op )
  37 {
  38         BerElement      *ber = op->o_ber;
  39         char            *last;
  40         struct berval dn = { 0, NULL };
  41         ber_len_t       len;
  42         ber_tag_t       tag;
  43         Entry           *e;
  44         Backend         *be;
  45         Modifications   *modlist = NULL;
  46         Modifications   **modtail = &modlist;
  47         Modifications   tmp;
  48         const char *text;
  49         int                     rc = LDAP_SUCCESS;
  50         int     manageDSAit;
  51
  52 #ifdef NEW_LOGGING
  53         LDAP_LOG( OPERATION, ENTRY, "do_add: conn %d enter\n", conn->c_connid,0,0 );
  54 #else
  55         Debug( LDAP_DEBUG_TRACE, "do_add\n", 0, 0, 0 );
  56 #endif
  57         /*
  58          * Parse the add request.  It looks like this:
  59          *
  60          *      AddRequest := [APPLICATION 14] SEQUENCE {
  61          *              name    DistinguishedName,
  62          *              attrs   SEQUENCE OF SEQUENCE {
  63          *                      type    AttributeType,
  64          *                      values  SET OF AttributeValue
  65          *              }
  66          *      }
  67          */
  68
  69         /* get the name */
  70         if ( ber_scanf( ber, "{m", /*}*/ &dn ) == LBER_ERROR ) {
  71 #ifdef NEW_LOGGING
  72                 LDAP_LOG( OPERATION, ERR,
  73                         "do_add: conn %d ber_scanf failed\n", conn->c_connid,0,0 );
  74 #else
  75                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
  76 #endif
  77                 send_ldap_disconnect( conn, op,
  78                         LDAP_PROTOCOL_ERROR, "decoding error" );
  79                 return -1;
  80         }
  81
  82         e = (Entry *) ch_calloc( 1, sizeof(Entry) );
  83
  84         rc = dnPrettyNormal( NULL, &dn, &e->e_name, &e->e_nname );
  85
  86         if( rc != LDAP_SUCCESS ) {
  87 #ifdef NEW_LOGGING
  88                 LDAP_LOG( OPERATION, ERR,
  89                         "do_add: conn %d invalid dn (%s)\n", conn->c_connid, dn.bv_val, 0 );
  90 #else
  91                 Debug( LDAP_DEBUG_ANY, "do_add: invalid dn (%s)\n", dn.bv_val, 0, 0 );
  92 #endif
  93                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
  94                             "invalid DN", NULL, NULL );
  95                 goto done;
  96         }
  97
  98 #ifdef NEW_LOGGING
  99         LDAP_LOG( OPERATION, ARGS,
 100                 "do_add: conn %d  dn (%s)\n", conn->c_connid, e->e_dn, 0 );
 101 #else
 102         Debug( LDAP_DEBUG_ARGS, "do_add: dn (%s)\n", e->e_dn, 0, 0 );
 103 #endif
 104
 105         /* get the attrs */
 106         for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
 107             tag = ber_next_element( ber, &len, last ) )
 108         {
 109                 Modifications *mod;
 110                 ber_tag_t rtag;
 111
 112                 rtag = ber_scanf( ber, "{m{W}}", &tmp.sml_type, &tmp.sml_bvalues );
 113
 114                 if ( rtag == LBER_ERROR ) {
 115 #ifdef NEW_LOGGING
 116                         LDAP_LOG( OPERATION, ERR,
 117                                    "do_add: conn %d      decoding error \n", conn->c_connid, 0, 0 );
 118 #else
 119                         Debug( LDAP_DEBUG_ANY, "do_add: decoding error\n", 0, 0, 0 );
 120 #endif
 121                         send_ldap_disconnect( conn, op,
 122                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 123                         rc = -1;
 124                         goto done;
 125                 }
 126
 127                 if ( tmp.sml_bvalues == NULL ) {
 128 #ifdef NEW_LOGGING
 129                         LDAP_LOG( OPERATION, INFO,
 130                                 "do_add: conn %d         no values for type %s\n",
 131                                 conn->c_connid, tmp.sml_type.bv_val, 0 );
 132 #else
 133                         Debug( LDAP_DEBUG_ANY, "no values for type %s\n",
 134                                 tmp.sml_type.bv_val, 0, 0 );
 135 #endif
 136                         send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 137                                 NULL, "no values for attribute type", NULL, NULL );
 138                         goto done;
 139                 }
 140                 mod  = (Modifications *) ch_malloc( sizeof(Modifications) );
 141
 142                 mod->sml_op = LDAP_MOD_ADD;
 143                 mod->sml_next = NULL;
 144                 mod->sml_desc = NULL;
 145                 mod->sml_type = tmp.sml_type;
 146                 mod->sml_bvalues = tmp.sml_bvalues;
 147
 148                 *modtail = mod;
 149                 modtail = &mod->sml_next;
 150         }
 151
 152         if ( ber_scanf( ber, /*{*/ "}") == LBER_ERROR ) {
 153 #ifdef NEW_LOGGING
 154                 LDAP_LOG( OPERATION, ERR,
 155                         "do_add: conn %d ber_scanf failed\n", conn->c_connid, 0, 0 );
 156 #else
 157                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
 158 #endif
 159                 send_ldap_disconnect( conn, op,
 160                         LDAP_PROTOCOL_ERROR, "decoding error" );
 161                 rc = -1;
 162                 goto done;
 163         }
 164
 165         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 166 #ifdef NEW_LOGGING
 167                 LDAP_LOG( OPERATION, INFO,
 168                         "do_add: conn %d get_ctrls failed\n", conn->c_connid, 0, 0 );
 169 #else
 170                 Debug( LDAP_DEBUG_ANY, "do_add: get_ctrls failed\n", 0, 0, 0 );
 171 #endif
 172                 goto done;
 173         }
 174
 175         if ( modlist == NULL ) {
 176                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 177                         NULL, "no attributes provided", NULL, NULL );
 178                 goto done;
 179         }
 180
 181         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu ADD dn=\"%s\"\n",
 182             op->o_connid, op->o_opid, e->e_dn, 0, 0 );
 183
 184         if( e->e_nname.bv_len == 0 ) {
 185                 /* protocolError may be a more appropriate error */
 186                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 187                         NULL, "root DSE already exists",
 188                         NULL, NULL );
 189                 goto done;
 190
 191 #if defined( SLAPD_SCHEMA_DN )
 192         } else if ( bvmatch( &e->e_nname, &global_schemandn ) ) {
 193                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 194                         NULL, "subschema subentry already exists",
 195                         NULL, NULL );
 196                 goto done;
 197 #endif
 198         }
 199
 200         manageDSAit = get_manageDSAit( op );
 201
 202         /*
 203          * We could be serving multiple database backends.  Select the
 204          * appropriate one, or send a referral to our "referral server"
 205          * if we don't hold it.
 206          */
 207         be = select_backend( &e->e_nname, manageDSAit, 0 );
 208         if ( be == NULL ) {
 209                 BerVarray ref = referral_rewrite( default_referral,
 210                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 211
 212                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 213                         NULL, NULL, ref ? ref : default_referral, NULL );
 214
 215                 if ( ref ) ber_bvarray_free( ref );
 216                 goto done;
 217         }
 218
 219         /* check restrictions */
 220         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 221         if( rc != LDAP_SUCCESS ) {
 222                 send_ldap_result( conn, op, rc,
 223                         NULL, text, NULL, NULL );
 224                 goto done;
 225         }
 226
 227         /* check for referrals */
 228         rc = backend_check_referrals( be, conn, op, &e->e_name, &e->e_nname );
 229         if ( rc != LDAP_SUCCESS ) {
 230                 goto done;
 231         }
 232
 233         /*
 234          * do the add if 1 && (2 || 3)
 235          * 1) there is an add function implemented in this backend;
 236          * 2) this backend is master for what it holds;
 237          * 3) it's a replica and the dn supplied is the updatedn.
 238          */
 239         if ( be->be_add ) {
 240                 /* do the update here */
 241                 int repl_user = be_isupdate(be, &op->o_ndn );
 242 #ifndef SLAPD_MULTIMASTER
 243                 if ( !be->be_update_ndn.bv_len || repl_user )
 244 #endif
 245                 {
 246                         int update = be->be_update_ndn.bv_len;
 247                         char textbuf[SLAP_TEXT_BUFLEN];
 248                         size_t textlen = sizeof textbuf;
 249
 250                         rc = slap_mods_check( modlist, update, &text,
 251                                 textbuf, textlen );
 252
 253                         if( rc != LDAP_SUCCESS ) {
 254                                 send_ldap_result( conn, op, rc,
 255                                         NULL, text, NULL, NULL );
 256                                 goto done;
 257                         }
 258
 259                         if ( !repl_user ) {
 260                                 for( modtail = &modlist;
 261                                         *modtail != NULL;
 262                                         modtail = &(*modtail)->sml_next )
 263                                 {
 264                                         assert( (*modtail)->sml_op == LDAP_MOD_ADD );
 265                                         assert( (*modtail)->sml_desc != NULL );
 266                                 }
 267                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 268                                         textbuf, textlen );
 269                                 if( rc != LDAP_SUCCESS ) {
 270                                         send_ldap_result( conn, op, rc,
 271                                                 NULL, text, NULL, NULL );
 272                                         goto done;
 273                                 }
 274                         }
 275
 276                         rc = slap_mods2entry( modlist, &e, repl_user, &text,
 277                                 textbuf, textlen );
 278                         if( rc != LDAP_SUCCESS ) {
 279                                 send_ldap_result( conn, op, rc,
 280                                         NULL, text, NULL, NULL );
 281                                 goto done;
 282                         }
 283
 284                         if ( (*be->be_add)( be, conn, op, e ) == 0 ) {
 285 #ifdef SLAPD_MULTIMASTER
 286                                 if ( !repl_user )
 287 #endif
 288                                 {
 289                                         replog( be, op, &e->e_name, &e->e_nname, e );
 290                                 }
 291                                 be_entry_release_w( be, conn, op, e );
 292                                 e = NULL;
 293                         }
 294
 295 #ifndef SLAPD_MULTIMASTER
 296                 } else {
 297                         BerVarray defref = be->be_update_refs
 298                                 ? be->be_update_refs : default_referral;
 299                         BerVarray ref = referral_rewrite( defref,
 300                                 NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 301
 302                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 303                                 ref ? ref : defref, NULL );
 304
 305                         if ( ref ) ber_bvarray_free( ref );
 306 #endif
 307                 }
 308         } else {
 309 #ifdef NEW_LOGGING
 310             LDAP_LOG( OPERATION, INFO,
 311                        "do_add: conn %d  no backend support\n", conn->c_connid, 0, 0 );
 312 #else
 313             Debug( LDAP_DEBUG_ARGS, "    do_add: no backend support\n", 0, 0, 0 );
 314 #endif
 315             send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 316                               NULL, "operation not supported within namingContext", NULL, NULL );
 317         }
 318
 319 done:
 320         if( modlist != NULL ) {
 321                 slap_mods_free( modlist );
 322         }
 323         if( e != NULL ) {
 324                 entry_free( e );
 325         }
 326
 327         return rc;
 328 }
 329
 330 static int slap_mods2entry(
 331         Modifications *mods,
 332         Entry **e,
 333         int repl_user,
 334         const char **text,
 335         char *textbuf, size_t textlen )
 336 {
 337         Attribute **tail = &(*e)->e_attrs;
 338         assert( *tail == NULL );
 339
 340         *text = textbuf;
 341
 342         for( ; mods != NULL; mods = mods->sml_next ) {
 343                 Attribute *attr;
 344
 345                 assert( mods->sml_op == LDAP_MOD_ADD );
 346                 assert( mods->sml_desc != NULL );
 347
 348                 attr = attr_find( (*e)->e_attrs, mods->sml_desc );
 349
 350                 if( attr != NULL ) {
 351 #define SLURPD_FRIENDLY
 352 #ifdef SLURPD_FRIENDLY
 353                         ber_len_t i,j;
 354
 355                         if( !repl_user ) {
 356                                 snprintf( textbuf, textlen,
 357                                         "attribute '%s' provided more than once",
 358                                         mods->sml_desc->ad_cname.bv_val );
 359                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 360                         }
 361
 362                         for( i=0; attr->a_vals[i].bv_val; i++ ) {
 363                                 /* count them */
 364                         }
 365                         for( j=0; mods->sml_bvalues[j].bv_val; j++ ) {
 366                                 /* count them */
 367                         }
 368                         j++;    /* NULL */
 369
 370                         attr->a_vals = ch_realloc( attr->a_vals,
 371                                 sizeof( struct berval ) * (i+j) );
 372
 373                         /* should check for duplicates */
 374
 375                         AC_MEMCPY( &attr->a_vals[i], mods->sml_bvalues,
 376                                 sizeof( struct berval ) * j );
 377
 378                         /* trim the mods array */
 379                         ch_free( mods->sml_bvalues );
 380                         mods->sml_bvalues = NULL;
 381
 382                         continue;
 383 #else
 384                         snprintf( textbuf, textlen,
 385                                 "attribute '%s' provided more than once",
 386                                 mods->sml_desc->ad_cname.bv_val );
 387                         return LDAP_TYPE_OR_VALUE_EXISTS;
 388 #endif
 389                 }
 390
 391                 if( mods->sml_bvalues[1].bv_val != NULL ) {
 392                         /* check for duplicates */
 393                         int             i, j;
 394                         MatchingRule *mr = mods->sml_desc->ad_type->sat_equality;
 395
 396                         /* check if the values we're adding already exist */
 397                         if( mr == NULL || !mr->smr_match ) {
 398                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 399                                         /* test asserted values against themselves */
 400                                         for( j = 0; j < i; j++ ) {
 401                                                 int rc = ber_bvcmp( &mods->sml_bvalues[i],
 402                                                         &mods->sml_bvalues[j] );
 403
 404                                                 if( rc == 0 ) {
 405                                                         /* value exists already */
 406                                                         snprintf( textbuf, textlen,
 407                                                                 "%s: value #%d provided more than once",
 408                                                                 mods->sml_desc->ad_cname.bv_val, j );
 409                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 410                                                 }
 411                                         }
 412                                 }
 413
 414                         } else {
 415                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 416                                         int rc, match;
 417                                         const char *text = NULL;
 418                                         struct berval asserted;
 419
 420                                         rc = value_normalize( mods->sml_desc,
 421                                                 SLAP_MR_EQUALITY,
 422                                                 &mods->sml_bvalues[i],
 423                                                 &asserted,
 424                                                 &text );
 425
 426                                         if( rc != LDAP_SUCCESS ) return rc;
 427
 428                                         for ( j = 0; j < i; j++ ) {
 429                                                 int rc = value_match( &match, mods->sml_desc, mr,
 430                                                         SLAP_MR_VALUE_SYNTAX_MATCH,
 431                                                         &mods->sml_bvalues[j], &asserted, &text );
 432
 433                                                 if( rc == LDAP_SUCCESS && match == 0 ) {
 434                                                         free( asserted.bv_val );
 435                                                         snprintf( textbuf, textlen,
 436                                                                 "%s: value #%d provided more than once",
 437                                                                 mods->sml_desc->ad_cname.bv_val, j );
 438                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 439                                                 }
 440                                         }
 441
 442                                         free( asserted.bv_val );
 443                                 }
 444                         }
 445                 }
 446
 447                 attr = ch_calloc( 1, sizeof(Attribute) );
 448
 449                 /* move ad to attr structure */
 450                 attr->a_desc = mods->sml_desc;
 451                 mods->sml_desc = NULL;
 452
 453                 /* move values to attr structure */
 454                 /*      should check for duplicates */
 455                 attr->a_vals = mods->sml_bvalues;
 456                 mods->sml_bvalues = NULL;
 457
 458                 *tail = attr;
 459                 tail = &attr->a_next;
 460         }
 461
 462         return LDAP_SUCCESS;
 463 }