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