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", LDAP_LEVEL_ENTRY,
  54                    "do_add: conn %d enter\n", conn->c_connid ));
  55 #else
  56         Debug( LDAP_DEBUG_TRACE, "do_add\n", 0, 0, 0 );
  57 #endif
  58         /*
  59          * Parse the add request.  It looks like this:
  60          *
  61          *      AddRequest := [APPLICATION 14] SEQUENCE {
  62          *              name    DistinguishedName,
  63          *              attrs   SEQUENCE OF SEQUENCE {
  64          *                      type    AttributeType,
  65          *                      values  SET OF AttributeValue
  66          *              }
  67          *      }
  68          */
  69
  70         /* get the name */
  71         if ( ber_scanf( ber, "{m", /*}*/ &dn ) == LBER_ERROR ) {
  72 #ifdef NEW_LOGGING
  73                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
  74                         "do_add: conn %d ber_scanf failed\n", conn->c_connid ));
  75 #else
  76                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
  77 #endif
  78                 send_ldap_disconnect( conn, op,
  79                         LDAP_PROTOCOL_ERROR, "decoding error" );
  80                 return -1;
  81         }
  82
  83         e = (Entry *) ch_calloc( 1, sizeof(Entry) );
  84
  85         rc = dnPrettyNormal( NULL, &dn, &e->e_name, &e->e_nname );
  86
  87         if( rc != LDAP_SUCCESS ) {
  88 #ifdef NEW_LOGGING
  89                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
  90                         "do_add: conn %d invalid dn (%s)\n", conn->c_connid,
  91                                 dn.bv_val ));
  92 #else
  93                 Debug( LDAP_DEBUG_ANY, "do_add: invalid dn (%s)\n", dn.bv_val, 0, 0 );
  94 #endif
  95                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
  96                             "invalid DN", NULL, NULL );
  97                 goto done;
  98         }
  99
 100 #ifdef NEW_LOGGING
 101         LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
 102                 "do_add: conn %d  dn (%s)\n", conn->c_connid, e->e_dn ));
 103 #else
 104         Debug( LDAP_DEBUG_ARGS, "do_add: dn (%s)\n", e->e_dn, 0, 0 );
 105 #endif
 106
 107         /* get the attrs */
 108         for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
 109             tag = ber_next_element( ber, &len, last ) )
 110         {
 111                 Modifications *mod;
 112                 ber_tag_t rtag;
 113
 114                 rtag = ber_scanf( ber, "{m{W}}", &tmp.sml_type, &tmp.sml_bvalues );
 115
 116                 if ( rtag == LBER_ERROR ) {
 117 #ifdef NEW_LOGGING
 118                         LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 119                                    "do_add: conn %d      decoding error \n", conn->c_connid ));
 120 #else
 121                         Debug( LDAP_DEBUG_ANY, "do_add: decoding error\n", 0, 0, 0 );
 122 #endif
 123                         send_ldap_disconnect( conn, op,
 124                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 125                         rc = -1;
 126                         goto done;
 127                 }
 128
 129                 if ( tmp.sml_bvalues == NULL ) {
 130 #ifdef NEW_LOGGING
 131                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 132                                 "do_add: conn %d         no values for type %s\n",
 133                                 conn->c_connid, tmp.sml_type.bv_val ));
 134 #else
 135                         Debug( LDAP_DEBUG_ANY, "no values for type %s\n",
 136                                 tmp.sml_type.bv_val, 0, 0 );
 137 #endif
 138                         send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 139                                 NULL, "no values for attribute type", NULL, NULL );
 140                         goto done;
 141                 }
 142                 mod  = (Modifications *) ch_malloc( sizeof(Modifications) );
 143
 144                 mod->sml_op = LDAP_MOD_ADD;
 145                 mod->sml_next = NULL;
 146                 mod->sml_desc = NULL;
 147                 mod->sml_type = tmp.sml_type;
 148                 mod->sml_bvalues = tmp.sml_bvalues;
 149
 150                 *modtail = mod;
 151                 modtail = &mod->sml_next;
 152         }
 153
 154         if ( ber_scanf( ber, /*{*/ "}") == LBER_ERROR ) {
 155 #ifdef NEW_LOGGING
 156                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 157                         "do_add: conn %d ber_scanf failed\n", conn->c_connid ));
 158 #else
 159                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
 160 #endif
 161                 send_ldap_disconnect( conn, op,
 162                         LDAP_PROTOCOL_ERROR, "decoding error" );
 163                 rc = -1;
 164                 goto done;
 165         }
 166
 167         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 168 #ifdef NEW_LOGGING
 169                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 170                         "do_add: conn %d get_ctrls failed\n", conn->c_connid ));
 171 #else
 172                 Debug( LDAP_DEBUG_ANY, "do_add: get_ctrls failed\n", 0, 0, 0 );
 173 #endif
 174                 goto done;
 175         }
 176
 177         if ( modlist == NULL ) {
 178                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 179                         NULL, "no attributes provided", NULL, NULL );
 180                 goto done;
 181         }
 182
 183         Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu ADD dn=\"%s\"\n",
 184             op->o_connid, op->o_opid, e->e_dn, 0, 0 );
 185
 186         if( e->e_nname.bv_len == 0 ) {
 187                 /* protocolError may be a more appropriate error */
 188                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 189                         NULL, "root DSE already exists",
 190                         NULL, NULL );
 191                 goto done;
 192
 193 #if defined( SLAPD_SCHEMA_DN )
 194         } else if ( strcasecmp( e->e_ndn, SLAPD_SCHEMA_DN ) == 0 ) {
 195                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 196                         NULL, "subschema subentry already exists",
 197                         NULL, NULL );
 198                 goto done;
 199 #endif
 200         }
 201
 202         manageDSAit = get_manageDSAit( op );
 203
 204         /*
 205          * We could be serving multiple database backends.  Select the
 206          * appropriate one, or send a referral to our "referral server"
 207          * if we don't hold it.
 208          */
 209         be = select_backend( &e->e_nname, manageDSAit, 0 );
 210         if ( be == NULL ) {
 211                 BerVarray ref = referral_rewrite( default_referral,
 212                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 213
 214                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 215                         NULL, NULL, ref ? ref : default_referral, NULL );
 216
 217                 if ( ref ) ber_bvarray_free( ref );
 218                 goto done;
 219         }
 220
 221         /* check restrictions */
 222         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 223         if( rc != LDAP_SUCCESS ) {
 224                 send_ldap_result( conn, op, rc,
 225                         NULL, text, NULL, NULL );
 226                 goto done;
 227         }
 228
 229         /* check for referrals */
 230         rc = backend_check_referrals( be, conn, op, &e->e_name, &e->e_nname );
 231         if ( rc != LDAP_SUCCESS ) {
 232                 goto done;
 233         }
 234
 235         /*
 236          * do the add if 1 && (2 || 3)
 237          * 1) there is an add function implemented in this backend;
 238          * 2) this backend is master for what it holds;
 239          * 3) it's a replica and the dn supplied is the updatedn.
 240          */
 241         if ( be->be_add ) {
 242                 /* do the update here */
 243                 int repl_user = be_isupdate(be, &op->o_ndn );
 244 #ifndef SLAPD_MULTIMASTER
 245                 if ( !be->be_update_ndn.bv_len || repl_user )
 246 #endif
 247                 {
 248                         int update = be->be_update_ndn.bv_len;
 249                         char textbuf[SLAP_TEXT_BUFLEN];
 250                         size_t textlen = sizeof textbuf;
 251
 252                         rc = slap_mods_check( modlist, update, &text,
 253                                 textbuf, textlen );
 254
 255                         if( rc != LDAP_SUCCESS ) {
 256                                 send_ldap_result( conn, op, rc,
 257                                         NULL, text, NULL, NULL );
 258                                 goto done;
 259                         }
 260
 261                         if ( !repl_user ) {
 262                                 for( modtail = &modlist;
 263                                         *modtail != NULL;
 264                                         modtail = &(*modtail)->sml_next )
 265                                 {
 266                                         assert( (*modtail)->sml_op == LDAP_MOD_ADD );
 267                                         assert( (*modtail)->sml_desc != NULL );
 268                                 }
 269                                 rc = slap_mods_opattrs( be, op, modlist, modtail, &text,
 270                                         textbuf, textlen );
 271                                 if( rc != LDAP_SUCCESS ) {
 272                                         send_ldap_result( conn, op, rc,
 273                                                 NULL, text, NULL, NULL );
 274                                         goto done;
 275                                 }
 276                         }
 277
 278                         rc = slap_mods2entry( modlist, &e, repl_user, &text,
 279                                 textbuf, textlen );
 280                         if( rc != LDAP_SUCCESS ) {
 281                                 send_ldap_result( conn, op, rc,
 282                                         NULL, text, NULL, NULL );
 283                                 goto done;
 284                         }
 285
 286                         if ( (*be->be_add)( be, conn, op, e ) == 0 ) {
 287 #ifdef SLAPD_MULTIMASTER
 288                                 if ( !repl_user )
 289 #endif
 290                                 {
 291                                         replog( be, op, &e->e_name, &e->e_nname, e );
 292                                 }
 293                                 be_entry_release_w( be, conn, op, e );
 294                                 e = NULL;
 295                         }
 296
 297 #ifndef SLAPD_MULTIMASTER
 298                 } else {
 299                         BerVarray defref = be->be_update_refs
 300                                 ? be->be_update_refs : default_referral;
 301                         BerVarray ref = referral_rewrite( defref,
 302                                 NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 303
 304                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 305                                 ref ? ref : defref, NULL );
 306
 307                         if ( ref ) ber_bvarray_free( ref );
 308 #endif
 309                 }
 310         } else {
 311 #ifdef NEW_LOGGING
 312             LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 313                        "do_add: conn %d  no backend support\n", conn->c_connid ));
 314 #else
 315             Debug( LDAP_DEBUG_ARGS, "    do_add: no backend support\n", 0, 0, 0 );
 316 #endif
 317             send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 318                               NULL, "operation not supported within namingContext", NULL, NULL );
 319         }
 320
 321 done:
 322         if( modlist != NULL ) {
 323                 slap_mods_free( modlist );
 324         }
 325         if( e != NULL ) {
 326                 entry_free( e );
 327         }
 328
 329         return rc;
 330 }
 331
 332 static int slap_mods2entry(
 333         Modifications *mods,
 334         Entry **e,
 335         int repl_user,
 336         const char **text,
 337         char *textbuf, size_t textlen )
 338 {
 339         Attribute **tail = &(*e)->e_attrs;
 340         assert( *tail == NULL );
 341
 342         *text = textbuf;
 343
 344         for( ; mods != NULL; mods = mods->sml_next ) {
 345                 Attribute *attr;
 346
 347                 assert( mods->sml_op == LDAP_MOD_ADD );
 348                 assert( mods->sml_desc != NULL );
 349
 350                 attr = attr_find( (*e)->e_attrs, mods->sml_desc );
 351
 352                 if( attr != NULL ) {
 353 #define SLURPD_FRIENDLY
 354 #ifdef SLURPD_FRIENDLY
 355                         ber_len_t i,j;
 356
 357                         if( !repl_user ) {
 358                                 snprintf( textbuf, textlen,
 359                                         "attribute '%s' provided more than once",
 360                                         mods->sml_desc->ad_cname.bv_val );
 361                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 362                         }
 363
 364                         for( i=0; attr->a_vals[i].bv_val; i++ ) {
 365                                 /* count them */
 366                         }
 367                         for( j=0; mods->sml_bvalues[j].bv_val; j++ ) {
 368                                 /* count them */
 369                         }
 370                         j++;    /* NULL */
 371
 372                         attr->a_vals = ch_realloc( attr->a_vals,
 373                                 sizeof( struct berval ) * (i+j) );
 374
 375                         /* should check for duplicates */
 376
 377                         AC_MEMCPY( &attr->a_vals[i], mods->sml_bvalues,
 378                                 sizeof( struct berval ) * j );
 379
 380                         /* trim the mods array */
 381                         ch_free( mods->sml_bvalues );
 382                         mods->sml_bvalues = NULL;
 383
 384                         continue;
 385 #else
 386                         snprintf( textbuf, textlen,
 387                                 "attribute '%s' provided more than once",
 388                                 mods->sml_desc->ad_cname.bv_val );
 389                         return LDAP_TYPE_OR_VALUE_EXISTS;
 390 #endif
 391                 }
 392
 393                 if( mods->sml_bvalues[1].bv_val != NULL ) {
 394                         /* check for duplicates */
 395                         int             i, j;
 396                         MatchingRule *mr = mods->sml_desc->ad_type->sat_equality;
 397
 398                         /* check if the values we're adding already exist */
 399                         if( mr == NULL || !mr->smr_match ) {
 400                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 401                                         /* test asserted values against themselves */
 402                                         for( j = 0; j < i; j++ ) {
 403                                                 int rc = ber_bvcmp( &mods->sml_bvalues[i],
 404                                                         &mods->sml_bvalues[j] );
 405
 406                                                 if( rc == 0 ) {
 407                                                         /* value exists already */
 408                                                         snprintf( textbuf, textlen,
 409                                                                 "%s: value #%d provided more than once",
 410                                                                 mods->sml_desc->ad_cname.bv_val, j );
 411                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 412                                                 }
 413                                         }
 414                                 }
 415
 416                         } else {
 417                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 418                                         int rc, match;
 419                                         const char *text = NULL;
 420                                         struct berval asserted;
 421
 422                                         rc = value_normalize( mods->sml_desc,
 423                                                 SLAP_MR_EQUALITY,
 424                                                 &mods->sml_bvalues[i],
 425                                                 &asserted,
 426                                                 &text );
 427
 428                                         if( rc != LDAP_SUCCESS ) return rc;
 429
 430                                         for ( j = 0; j < i; j++ ) {
 431                                                 int rc = value_match( &match, mods->sml_desc, mr,
 432                                                         SLAP_MR_VALUE_SYNTAX_MATCH,
 433                                                         &mods->sml_bvalues[j], &asserted, &text );
 434
 435                                                 if( rc == LDAP_SUCCESS && match == 0 ) {
 436                                                         free( asserted.bv_val );
 437                                                         snprintf( textbuf, textlen,
 438                                                                 "%s: value #%d provided more than once",
 439                                                                 mods->sml_desc->ad_cname.bv_val, j );
 440                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 441                                                 }
 442                                         }
 443
 444                                         free( asserted.bv_val );
 445                                 }
 446                         }
 447                 }
 448
 449                 attr = ch_calloc( 1, sizeof(Attribute) );
 450
 451                 /* move ad to attr structure */
 452                 attr->a_desc = mods->sml_desc;
 453                 mods->sml_desc = NULL;
 454
 455                 /* move values to attr structure */
 456                 /*      should check for duplicates */
 457                 attr->a_vals = mods->sml_bvalues;
 458                 mods->sml_bvalues = NULL;
 459
 460                 *tail = attr;
 461                 tail = &attr->a_next;
 462         }
 463
 464         return LDAP_SUCCESS;
 465 }