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         e->e_name.bv_val = NULL;
  85         e->e_name.bv_len = 0;
  86         e->e_nname.bv_val = NULL;
  87         e->e_nname.bv_len = 0;
  88         e->e_attrs = NULL;
  89         e->e_private = NULL;
  90
  91         rc = dnPrettyNormal( NULL, &dn, &e->e_name, &e->e_nname );
  92
  93         if( rc != LDAP_SUCCESS ) {
  94 #ifdef NEW_LOGGING
  95                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
  96                         "do_add: conn %d invalid dn (%s)\n", conn->c_connid,
  97                                 dn.bv_val ));
  98 #else
  99                 Debug( LDAP_DEBUG_ANY, "do_add: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 100 #endif
 101                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 102                             "invalid DN", NULL, NULL );
 103                 goto done;
 104         }
 105
 106 #ifdef NEW_LOGGING
 107         LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
 108                 "do_add: conn %d  dn (%s)\n", conn->c_connid, e->e_dn ));
 109 #else
 110         Debug( LDAP_DEBUG_ARGS, "do_add: dn (%s)\n", e->e_dn, 0, 0 );
 111 #endif
 112
 113         /* get the attrs */
 114         for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
 115             tag = ber_next_element( ber, &len, last ) )
 116         {
 117                 Modifications *mod;
 118
 119                 rc = ber_scanf( ber, "{m{W}}", &tmp.sml_type, &tmp.sml_bvalues );
 120
 121                 if ( rc == LBER_ERROR ) {
 122 #ifdef NEW_LOGGING
 123                         LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 124                                    "do_add: conn %d      decoding error \n", conn->c_connid ));
 125 #else
 126                         Debug( LDAP_DEBUG_ANY, "do_add: decoding error\n", 0, 0, 0 );
 127 #endif
 128                         send_ldap_disconnect( conn, op,
 129                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 130                         rc = -1;
 131                         goto done;
 132                 }
 133
 134                 if ( tmp.sml_bvalues == NULL ) {
 135 #ifdef NEW_LOGGING
 136                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 137                                 "do_add: conn %d         no values for type %s\n",
 138                                 conn->c_connid, tmp.sml_type.bv_val ));
 139 #else
 140                         Debug( LDAP_DEBUG_ANY, "no values for type %s\n",
 141                                 tmp.sml_type.bv_val, 0, 0 );
 142 #endif
 143                         send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 144                                 NULL, "no values for attribute type", NULL, NULL );
 145                         free( tmp.sml_type.bv_val );
 146                         goto done;
 147                 }
 148                 mod  = (Modifications *) ch_malloc( sizeof(Modifications) );
 149
 150                 mod->sml_op = LDAP_MOD_ADD;
 151                 mod->sml_next = NULL;
 152                 mod->sml_desc = NULL;
 153                 mod->sml_type = tmp.sml_type;
 154                 mod->sml_bvalues = tmp.sml_bvalues;
 155
 156                 *modtail = mod;
 157                 modtail = &mod->sml_next;
 158         }
 159
 160         if ( ber_scanf( ber, /*{*/ "}") == LBER_ERROR ) {
 161 #ifdef NEW_LOGGING
 162                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 163                         "do_add: conn %d ber_scanf failed\n", conn->c_connid ));
 164 #else
 165                 Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
 166 #endif
 167                 send_ldap_disconnect( conn, op,
 168                         LDAP_PROTOCOL_ERROR, "decoding error" );
 169                 rc = -1;
 170                 goto done;
 171         }
 172
 173         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 174 #ifdef NEW_LOGGING
 175                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 176                         "do_add: conn %d get_ctrls failed\n", conn->c_connid ));
 177 #else
 178                 Debug( LDAP_DEBUG_ANY, "do_add: get_ctrls failed\n", 0, 0, 0 );
 179 #endif
 180                 goto done;
 181         }
 182
 183         if ( modlist == NULL ) {
 184                 send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
 185                         NULL, "no attributes provided", NULL, NULL );
 186                 goto done;
 187         }
 188
 189         Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d ADD dn=\"%s\"\n",
 190             op->o_connid, op->o_opid, e->e_dn, 0, 0 );
 191
 192         if( e->e_nname.bv_len == 0 ) {
 193                 /* protocolError may be a more appropriate error */
 194                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 195                         NULL, "root DSE already exists",
 196                         NULL, NULL );
 197                 goto done;
 198
 199 #if defined( SLAPD_SCHEMA_DN )
 200         } else if ( strcasecmp( e->e_ndn, SLAPD_SCHEMA_DN ) == 0 ) {
 201                 send_ldap_result( conn, op, rc = LDAP_ALREADY_EXISTS,
 202                         NULL, "subschema subentry already exists",
 203                         NULL, NULL );
 204                 goto done;
 205 #endif
 206         }
 207
 208         manageDSAit = get_manageDSAit( op );
 209
 210         /*
 211          * We could be serving multiple database backends.  Select the
 212          * appropriate one, or send a referral to our "referral server"
 213          * if we don't hold it.
 214          */
 215         be = select_backend( &e->e_nname, manageDSAit, 0 );
 216         if ( be == NULL ) {
 217                 BerVarray ref = referral_rewrite( default_referral,
 218                         NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 219
 220                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 221                         NULL, NULL, ref ? ref : default_referral, NULL );
 222
 223                 if ( ref ) ber_bvarray_free( ref );
 224                 goto done;
 225         }
 226
 227         /* check restrictions */
 228         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 229         if( rc != LDAP_SUCCESS ) {
 230                 send_ldap_result( conn, op, rc,
 231                         NULL, text, NULL, NULL );
 232                 goto done;
 233         }
 234
 235         /* check for referrals */
 236         rc = backend_check_referrals( be, conn, op, &e->e_name, &e->e_nname );
 237         if ( rc != LDAP_SUCCESS ) {
 238                 goto done;
 239         }
 240
 241         /*
 242          * do the add if 1 && (2 || 3)
 243          * 1) there is an add function implemented in this backend;
 244          * 2) this backend is master for what it holds;
 245          * 3) it's a replica and the dn supplied is the updatedn.
 246          */
 247         if ( be->be_add ) {
 248                 /* do the update here */
 249                 int repl_user = be_isupdate(be, &op->o_ndn );
 250 #ifndef SLAPD_MULTIMASTER
 251                 if ( !be->be_update_ndn.bv_len || repl_user )
 252 #endif
 253                 {
 254                         int update = be->be_update_ndn.bv_len;
 255                         char textbuf[SLAP_TEXT_BUFLEN];
 256                         size_t textlen = sizeof textbuf;
 257
 258                         rc = slap_mods_check( modlist, update, &text,
 259                                 textbuf, textlen );
 260
 261                         if( rc != LDAP_SUCCESS ) {
 262                                 send_ldap_result( conn, op, rc,
 263                                         NULL, text, NULL, NULL );
 264                                 goto done;
 265                         }
 266
 267                         if ( SLAP_LASTMOD(be) && !repl_user ) {
 268                                 for( modtail = &modlist;
 269                                         *modtail != NULL;
 270                                         modtail = &(*modtail)->sml_next )
 271                                 {
 272                                         assert( (*modtail)->sml_op == LDAP_MOD_ADD );
 273                                         assert( (*modtail)->sml_desc != NULL );
 274                                 }
 275                                 rc = slap_mods_opattrs( op, modlist, modtail, &text,
 276                                         textbuf, textlen );
 277                                 if( rc != LDAP_SUCCESS ) {
 278                                         send_ldap_result( conn, op, rc,
 279                                                 NULL, text, NULL, NULL );
 280                                         goto done;
 281                                 }
 282                         }
 283
 284                         rc = slap_mods2entry( modlist, &e, repl_user, &text,
 285                                 textbuf, textlen );
 286                         if( rc != LDAP_SUCCESS ) {
 287                                 send_ldap_result( conn, op, rc,
 288                                         NULL, text, NULL, NULL );
 289                                 goto done;
 290                         }
 291
 292                         if ( (*be->be_add)( be, conn, op, e ) == 0 ) {
 293 #ifdef SLAPD_MULTIMASTER
 294                                 if ( !repl_user )
 295 #endif
 296                                 {
 297                                         replog( be, op, &e->e_name, &e->e_nname, e );
 298                                 }
 299                                 be_entry_release_w( be, conn, op, e );
 300                                 e = NULL;
 301                         }
 302
 303 #ifndef SLAPD_MULTIMASTER
 304                 } else {
 305                         BerVarray defref = be->be_update_refs
 306                                 ? be->be_update_refs : default_referral;
 307                         BerVarray ref = referral_rewrite( defref,
 308                                 NULL, &e->e_name, LDAP_SCOPE_DEFAULT );
 309
 310                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 311                                 ref ? ref : defref, NULL );
 312
 313                         if ( ref ) ber_bvarray_free( ref );
 314 #endif
 315                 }
 316         } else {
 317 #ifdef NEW_LOGGING
 318             LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 319                        "do_add: conn %d  no backend support\n", conn->c_connid ));
 320 #else
 321             Debug( LDAP_DEBUG_ARGS, "    do_add: no backend support\n", 0, 0, 0 );
 322 #endif
 323             send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 324                               NULL, "operation not supported within namingContext", NULL, NULL );
 325         }
 326
 327 done:
 328         if( modlist != NULL ) {
 329                 slap_mods_free( modlist );
 330         }
 331         if( e != NULL ) {
 332                 entry_free( e );
 333         }
 334
 335         return rc;
 336 }
 337
 338 static int slap_mods2entry(
 339         Modifications *mods,
 340         Entry **e,
 341         int repl_user,
 342         const char **text,
 343         char *textbuf, size_t textlen )
 344 {
 345         Attribute **tail = &(*e)->e_attrs;
 346         assert( *tail == NULL );
 347
 348         *text = textbuf;
 349
 350         for( ; mods != NULL; mods = mods->sml_next ) {
 351                 Attribute *attr;
 352
 353                 assert( mods->sml_op == LDAP_MOD_ADD );
 354                 assert( mods->sml_desc != NULL );
 355
 356                 attr = attr_find( (*e)->e_attrs, mods->sml_desc );
 357
 358                 if( attr != NULL ) {
 359 #define SLURPD_FRIENDLY
 360 #ifdef SLURPD_FRIENDLY
 361                         ber_len_t i,j;
 362
 363                         if( !repl_user ) {
 364                                 snprintf( textbuf, textlen,
 365                                         "attribute '%s' provided more than once",
 366                                         mods->sml_desc->ad_cname.bv_val );
 367                                 return LDAP_TYPE_OR_VALUE_EXISTS;
 368                         }
 369
 370                         for( i=0; attr->a_vals[i].bv_val; i++ ) {
 371                                 /* count them */
 372                         }
 373                         for( j=0; mods->sml_bvalues[j].bv_val; j++ ) {
 374                                 /* count them */
 375                         }
 376                         j++;    /* NULL */
 377
 378                         attr->a_vals = ch_realloc( attr->a_vals,
 379                                 sizeof( struct berval ) * (i+j) );
 380
 381                         /* should check for duplicates */
 382
 383                         AC_MEMCPY( &attr->a_vals[i], mods->sml_bvalues,
 384                                 sizeof( struct berval ) * j );
 385
 386                         /* trim the mods array */
 387                         ch_free( mods->sml_bvalues );
 388                         mods->sml_bvalues = NULL;
 389
 390                         continue;
 391 #else
 392                         snprintf( textbuf, textlen,
 393                                 "attribute '%s' provided more than once",
 394                                 mods->sml_desc->ad_cname.bv_val );
 395                         return LDAP_TYPE_OR_VALUE_EXISTS;
 396 #endif
 397                 }
 398
 399                 if( mods->sml_bvalues[1].bv_val != NULL ) {
 400                         /* check for duplicates */
 401                         int             i, j;
 402                         MatchingRule *mr = mods->sml_desc->ad_type->sat_equality;
 403
 404                         /* check if the values we're adding already exist */
 405                         if( mr == NULL || !mr->smr_match ) {
 406                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 407                                         /* test asserted values against themselves */
 408                                         for( j = 0; j < i; j++ ) {
 409                                                 int rc = ber_bvcmp( &mods->sml_bvalues[i],
 410                                                         &mods->sml_bvalues[j] );
 411
 412                                                 if( rc == 0 ) {
 413                                                         /* value exists already */
 414                                                         snprintf( textbuf, textlen,
 415                                                                 "%s: value #%d provided more than once",
 416                                                                 mods->sml_desc->ad_cname.bv_val, j );
 417                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 418                                                 }
 419                                         }
 420                                 }
 421
 422                         } else {
 423                                 for ( i = 0; mods->sml_bvalues[i].bv_val != NULL; i++ ) {
 424                                         int rc, match;
 425                                         const char *text = NULL;
 426                                         struct berval asserted;
 427
 428                                         rc = value_normalize( mods->sml_desc,
 429                                                 SLAP_MR_EQUALITY,
 430                                                 &mods->sml_bvalues[i],
 431                                                 &asserted,
 432                                                 &text );
 433
 434                                         if( rc != LDAP_SUCCESS ) return rc;
 435
 436                                         for ( j = 0; j < i; j++ ) {
 437                                                 int rc = value_match( &match, mods->sml_desc, mr,
 438                                                         SLAP_MR_VALUE_SYNTAX_MATCH,
 439                                                         &mods->sml_bvalues[j], &asserted, &text );
 440
 441                                                 if( rc == LDAP_SUCCESS && match == 0 ) {
 442                                                         free( asserted.bv_val );
 443                                                         snprintf( textbuf, textlen,
 444                                                                 "%s: value #%d provided more than once",
 445                                                                 mods->sml_desc->ad_cname.bv_val, j );
 446                                                         return LDAP_TYPE_OR_VALUE_EXISTS;
 447                                                 }
 448                                         }
 449
 450                                         free( asserted.bv_val );
 451                                 }
 452                         }
 453                 }
 454
 455                 attr = ch_calloc( 1, sizeof(Attribute) );
 456
 457                 /* move ad to attr structure */
 458                 attr->a_desc = mods->sml_desc;
 459                 mods->sml_desc = NULL;
 460
 461                 /* move values to attr structure */
 462                 /*      should check for duplicates */
 463                 attr->a_vals = mods->sml_bvalues;
 464                 mods->sml_bvalues = NULL;
 465
 466                 *tail = attr;
 467                 tail = &attr->a_next;
 468         }
 469
 470         return LDAP_SUCCESS;
 471 }