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

   1 /* ldif.c - the ldif backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2005-2008 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was originally developed by Eric Stokes for inclusion
  18  * in OpenLDAP Software.
  19  */
  20
  21 #include "portable.h"
  22 #include <stdio.h>
  23 #include <ac/string.h>
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <ac/dirent.h>
  27 #include <fcntl.h>
  28 #include <ac/errno.h>
  29 #include <ac/unistd.h>
  30 #include "slap.h"
  31 #include "lutil.h"
  32 #include "config.h"
  33
  34 typedef struct enumCookie {
  35         Operation *op;
  36         SlapReply *rs;
  37         Entry **entries;
  38         int elen;
  39         int eind;
  40 } enumCookie;
  41
  42 struct ldif_info {
  43         struct berval li_base_path;
  44         enumCookie li_tool_cookie;
  45         ID li_tool_current;
  46         ldap_pvt_thread_rdwr_t  li_rdwr;
  47 };
  48
  49 #ifdef _WIN32
  50 #define mkdir(a,b)      mkdir(a)
  51 #endif
  52
  53 #define LDIF    ".ldif"
  54
  55 #define IX_DNL  '{'
  56 #define IX_DNR  '}'
  57 #ifndef IX_FSL
  58 #define IX_FSL  IX_DNL
  59 #define IX_FSR  IX_DNR
  60 #endif
  61
  62 #define ENTRY_BUFF_INCREMENT 500
  63
  64 static ConfigTable ldifcfg[] = {
  65         { "directory", "dir", 2, 2, 0, ARG_BERVAL|ARG_OFFSET,
  66                 (void *)offsetof(struct ldif_info, li_base_path),
  67                 "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
  68                         "DESC 'Directory for database content' "
  69                         "EQUALITY caseIgnoreMatch "
  70                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
  71         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
  72                 NULL, NULL, NULL, NULL }
  73 };
  74
  75 static ConfigOCs ldifocs[] = {
  76         { "( OLcfgDbOc:2.1 "
  77                 "NAME 'olcLdifConfig' "
  78                 "DESC 'LDIF backend configuration' "
  79                 "SUP olcDatabaseConfig "
  80                 "MUST ( olcDbDirectory ) )", Cft_Database, ldifcfg },
  81         { NULL, 0, NULL }
  82 };
  83
  84
  85 /* Set *res = LDIF filename path for the normalized DN */
  86 static void
  87 dn2path( BackendDB *be, struct berval *orig_dn, struct berval *res )
  88 {
  89         struct ldif_info *li = (struct ldif_info *) be->be_private;
  90         struct berval *suffixdn = &be->be_nsuffix[0];
  91         char *ptr, *sep, *end;
  92         int nsep = 0;
  93         struct berval dn;
  94
  95         assert( orig_dn != NULL );
  96         assert( !BER_BVISNULL( orig_dn ) );
  97         assert( suffixdn != NULL );
  98         assert( !BER_BVISNULL( suffixdn ) );
  99         assert( dnIsSuffix( orig_dn, suffixdn ) );
 100
 101         dn = *orig_dn;
 102
 103         /* escape dirsep's
 104          * use "\" + hexpair, so the escaped DN remains formally valid */
 105         for ( ptr = dn.bv_val, end = &dn.bv_val[dn.bv_len]; ptr < end; ptr++ ) {
 106                 if ( ptr[0] == LDAP_DIRSEP[0] ) {
 107                         nsep++;
 108                 }
 109         }
 110
 111         if ( nsep ) {
 112                 char    *p;
 113
 114                 dn.bv_len += 2*nsep;
 115                 dn.bv_val = ch_malloc( dn.bv_len + 1 );
 116
 117                 for ( ptr = orig_dn->bv_val, end = &orig_dn->bv_val[orig_dn->bv_len], p = dn.bv_val;
 118                         ptr < end; ptr++, p++)
 119                 {
 120                         static const char hex[] = "0123456789ABCDEF";
 121                         if ( ptr[0] == LDAP_DIRSEP[0] ) {
 122                                 *p++ = '\\';
 123                                 *p++ = hex[(LDAP_DIRSEP[0] & 0xF0U) >> 4];
 124                                 *p = hex[LDAP_DIRSEP[0] & 0x0FU];
 125                         } else {
 126                                 p[0] = ptr[0];
 127                         }
 128                 }
 129                 p[0] = '\0';
 130         }
 131
 132         res->bv_len = dn.bv_len + li->li_base_path.bv_len + 1 + STRLENOF( LDIF );
 133         res->bv_val = ch_malloc( res->bv_len + 1 );
 134         ptr = lutil_strcopy( res->bv_val, li->li_base_path.bv_val );
 135         end = dn.bv_val + dn.bv_len;
 136         if ( !BER_BVISEMPTY( suffixdn ) ) {
 137                 *ptr++ = LDAP_DIRSEP[0];
 138                 ptr = lutil_strcopy( ptr, suffixdn->bv_val );
 139                 end -= suffixdn->bv_len + 1;
 140
 141         } else if ( BER_BVISEMPTY( &dn ) ) {
 142                 *ptr++ = LDAP_DIRSEP[0];
 143         }
 144         while ( end > dn.bv_val ) {
 145                 for (sep = end-1; sep >= dn.bv_val && !DN_SEPARATOR( *sep ); sep--);
 146                 *ptr++ = LDAP_DIRSEP[0];
 147                 ptr = lutil_strncopy( ptr, sep+1, end-sep-1 );
 148                 end = sep;
 149         }
 150         strcpy(ptr, LDIF);
 151 #if IX_FSL != IX_DNL
 152         {
 153                 struct berval bv;
 154                 bv = *res;
 155                 while ( ptr = ber_bvchr( &bv, IX_DNL ) ) {
 156                         *ptr++ = IX_FSL;
 157                         assert( ( ptr - bv.bv_val ) <= bv.bv_len );
 158                         bv.bv_len -= ( ptr - bv.bv_val );
 159                         bv.bv_val = ptr;
 160                         ptr = ber_bvchr( &bv, IX_DNR );
 161                         if ( !ptr )
 162                                 break;
 163                         *ptr++ = IX_FSR;
 164                         assert( ( ptr - bv.bv_val ) <= bv.bv_len );
 165                         bv.bv_len -= ( ptr - bv.bv_val );
 166                         bv.bv_val = ptr;
 167                 }
 168         }
 169 #endif
 170         if ( dn.bv_val != orig_dn->bv_val ) {
 171                 ch_free( dn.bv_val );
 172         }
 173
 174         assert( strlen( res->bv_val ) == res->bv_len );
 175 }
 176
 177 static char * slurp_file(int fd) {
 178         int read_chars_total = 0;
 179         int read_chars = 0;
 180         int entry_size;
 181         char * entry;
 182         char * entry_pos;
 183         struct stat st;
 184
 185         fstat(fd, &st);
 186         entry_size = st.st_size;
 187         entry = ch_malloc( entry_size+1 );
 188         entry_pos = entry;
 189
 190         while(1) {
 191                 read_chars = read(fd, (void *) entry_pos, entry_size - read_chars_total);
 192                 if(read_chars == -1) {
 193                         SLAP_FREE(entry);
 194                         return NULL;
 195                 }
 196                 if(read_chars == 0) {
 197                         entry[read_chars_total] = '\0';
 198                         break;
 199                 }
 200                 else {
 201                         read_chars_total += read_chars;
 202                         entry_pos += read_chars;
 203                 }
 204         }
 205         return entry;
 206 }
 207
 208 /*
 209  * return nonnegative for success or -1 for error
 210  * do not return numbers less than -1
 211  */
 212 static int spew_file(int fd, char * spew, int len) {
 213         int writeres = 0;
 214
 215         while(len > 0) {
 216                 writeres = write(fd, spew, len);
 217                 if(writeres == -1) {
 218                         return -1;
 219                 }
 220                 else {
 221                         spew += writeres;
 222                         len -= writeres;
 223                 }
 224         }
 225         return writeres;
 226 }
 227
 228 static int
 229 spew_entry( Entry * e, struct berval * path, int dolock, int *save_errnop )
 230 {
 231         int rs, save_errno = 0;
 232         int openres;
 233         int res, spew_res;
 234         int entry_length;
 235         char * entry_as_string;
 236         char *tmpfname = NULL;
 237
 238         tmpfname = ch_malloc( path->bv_len + STRLENOF( "XXXXXX" ) + 1 );
 239         AC_MEMCPY( tmpfname, path->bv_val, path->bv_len );
 240         AC_MEMCPY( &tmpfname[ path->bv_len ], "XXXXXX", STRLENOF( "XXXXXX" ) + 1 );
 241
 242         openres = mkstemp( tmpfname );
 243         if ( openres == -1 ) {
 244                 save_errno = errno;
 245                 rs = LDAP_UNWILLING_TO_PERFORM;
 246                 Debug( LDAP_DEBUG_ANY, "could not create tmpfile \"%s\": %s\n",
 247                         tmpfname, STRERROR( save_errno ), 0 );
 248
 249         } else {
 250                 struct berval rdn;
 251                 int tmp;
 252
 253                 /* Only save the RDN onto disk */
 254                 dnRdn( &e->e_name, &rdn );
 255                 if ( rdn.bv_len != e->e_name.bv_len ) {
 256                         e->e_name.bv_val[rdn.bv_len] = '\0';
 257                         tmp = e->e_name.bv_len;
 258                         e->e_name.bv_len = rdn.bv_len;
 259                         rdn.bv_len = tmp;
 260                 }
 261
 262                 spew_res = -2;
 263                 if ( dolock ) {
 264                         ldap_pvt_thread_mutex_lock(&entry2str_mutex);
 265                 }
 266
 267                 entry_as_string = entry2str(e, &entry_length);
 268                 if ( entry_as_string != NULL ) {
 269                         spew_res = spew_file( openres,
 270                                 entry_as_string, entry_length );
 271                         if ( spew_res == -1 ) {
 272                                 save_errno = errno;
 273                         }
 274                 }
 275
 276                 if ( dolock ) {
 277                         ldap_pvt_thread_mutex_unlock(&entry2str_mutex);
 278                 }
 279
 280                 /* Restore full DN */
 281                 if ( rdn.bv_len != e->e_name.bv_len ) {
 282                         e->e_name.bv_val[e->e_name.bv_len] = ',';
 283                         e->e_name.bv_len = rdn.bv_len;
 284                 }
 285
 286                 res = close( openres );
 287                 rs = LDAP_UNWILLING_TO_PERFORM;
 288
 289                 if ( spew_res > -2 ) {
 290                         if ( res == -1 || spew_res == -1 ) {
 291                                 if ( save_errno == 0 ) {
 292                                         save_errno = errno;
 293                                 }
 294                                 Debug( LDAP_DEBUG_ANY, "write error to tmpfile \"%s\": %s\n",
 295                                         tmpfname, STRERROR( save_errno ), 0 );
 296
 297                         } else {
 298                                 res = rename( tmpfname, path->bv_val );
 299                                 if ( res == 0 ) {
 300                                         rs = LDAP_SUCCESS;
 301
 302                                 } else {
 303                                         save_errno = errno;
 304                                         switch ( save_errno ) {
 305                                         case ENOENT:
 306                                                 rs = LDAP_NO_SUCH_OBJECT;
 307                                                 break;
 308
 309                                         default:
 310                                                 break;
 311                                         }
 312                                 }
 313                         }
 314                 }
 315
 316                 if ( rs != LDAP_SUCCESS ) {
 317                         unlink( tmpfname );
 318                 }
 319         }
 320
 321         ch_free( tmpfname );
 322
 323         if ( rs != LDAP_SUCCESS && save_errnop != NULL ) {
 324                 *save_errnop = save_errno;
 325         }
 326
 327         return rs;
 328 }
 329
 330 static Entry * get_entry_for_fd(int fd,
 331         struct berval *pdn,
 332         struct berval *pndn)
 333 {
 334         char * entry = (char *) slurp_file(fd);
 335         Entry * ldentry = NULL;
 336
 337         /* error reading file */
 338         if(entry == NULL) {
 339                 goto return_value;
 340         }
 341
 342         ldentry = str2entry(entry);
 343         if ( ldentry ) {
 344                 struct berval rdn;
 345                 rdn = ldentry->e_name;
 346                 build_new_dn( &ldentry->e_name, pdn, &rdn, NULL );
 347                 ch_free( rdn.bv_val );
 348                 rdn = ldentry->e_nname;
 349                 build_new_dn( &ldentry->e_nname, pndn, &rdn, NULL );
 350                 ch_free( rdn.bv_val );
 351         }
 352
 353  return_value:
 354         if(fd != -1) {
 355                 if(close(fd) != 0) {
 356                         /* log error */
 357                 }
 358         }
 359         if(entry != NULL)
 360                 SLAP_FREE(entry);
 361         return ldentry;
 362 }
 363
 364 static int
 365 get_entry(
 366         Operation *op,
 367         Entry **entryp,
 368         struct berval *pathp )
 369 {
 370         int rc;
 371         struct berval path, pdn, pndn;
 372         int fd;
 373
 374         dnParent(&op->o_req_dn, &pdn);
 375         dnParent(&op->o_req_ndn, &pndn);
 376         dn2path( op->o_bd, &op->o_req_ndn, &path );
 377         fd = open(path.bv_val, O_RDONLY);
 378         /* error opening file (mebbe should log error) */
 379         if ( fd == -1 && ( errno != ENOENT || op->o_tag != LDAP_REQ_ADD ) ) {
 380                 Debug( LDAP_DEBUG_ANY, "failed to open file \"%s\": %s\n",
 381                         path.bv_val, STRERROR(errno), 0 );
 382         }
 383         *entryp = fd < 0 ? NULL : get_entry_for_fd( fd, &pdn, &pndn );
 384         rc = *entryp ? LDAP_SUCCESS : LDAP_NO_SUCH_OBJECT;
 385
 386         if ( rc == LDAP_SUCCESS && pathp != NULL ) {
 387                 *pathp = path;
 388         } else {
 389                 SLAP_FREE(path.bv_val);
 390         }
 391         return rc;
 392 }
 393
 394 static void fullpath(struct berval *base, struct berval *name, struct berval *res) {
 395         char *ptr;
 396         res->bv_len = name->bv_len + base->bv_len + 1;
 397         res->bv_val = ch_malloc( res->bv_len + 1 );
 398         strcpy(res->bv_val, base->bv_val);
 399         ptr = res->bv_val + base->bv_len;
 400         *ptr++ = LDAP_DIRSEP[0];
 401         strcpy(ptr, name->bv_val);
 402 }
 403
 404 typedef struct bvlist {
 405         struct bvlist *next;
 406         struct berval bv;
 407         struct berval num;
 408         int inum;
 409         int off;
 410 } bvlist;
 411
 412
 413 static int r_enum_tree(enumCookie *ck, struct berval *path, int base,
 414         struct berval *pdn, struct berval *pndn)
 415 {
 416         Entry *e = NULL;
 417         int fd = 0, rc = LDAP_SUCCESS;
 418
 419         if ( !base ) {
 420                 fd = open( path->bv_val, O_RDONLY );
 421                 if ( fd < 0 ) {
 422                         Debug( LDAP_DEBUG_TRACE,
 423                                 "=> ldif_enum_tree: failed to open %s: %s\n",
 424                                 path->bv_val, STRERROR(errno), 0 );
 425                         return LDAP_NO_SUCH_OBJECT;
 426                 }
 427
 428                 e = get_entry_for_fd(fd, pdn, pndn);
 429                 if ( !e ) {
 430                         Debug( LDAP_DEBUG_ANY,
 431                                 "=> ldif_enum_tree: failed to read entry for %s\n",
 432                                 path->bv_val, 0, 0 );
 433                         return LDAP_BUSY;
 434                 }
 435
 436                 if ( ck->op->ors_scope == LDAP_SCOPE_BASE ||
 437                         ck->op->ors_scope == LDAP_SCOPE_SUBTREE ) {
 438                         /* Send right away? */
 439                         if ( ck->rs ) {
 440                                 /*
 441                                  * if it's a referral, add it to the list of referrals. only do
 442                                  * this for non-base searches, and don't check the filter
 443                                  * explicitly here since it's only a candidate anyway.
 444                                  */
 445                                 if ( !get_manageDSAit( ck->op )
 446                                                 && ck->op->ors_scope != LDAP_SCOPE_BASE
 447                                                 && is_entry_referral( e ) )
 448                                 {
 449                                         BerVarray erefs = get_entry_referrals( ck->op, e );
 450                                         ck->rs->sr_ref = referral_rewrite( erefs,
 451                                                         &e->e_name, NULL,
 452                                                         ck->op->oq_search.rs_scope == LDAP_SCOPE_ONELEVEL
 453                                                                 ? LDAP_SCOPE_BASE : LDAP_SCOPE_SUBTREE );
 454
 455                                         ck->rs->sr_entry = e;
 456                                         rc = send_search_reference( ck->op, ck->rs );
 457                                         ber_bvarray_free( ck->rs->sr_ref );
 458                                         ber_bvarray_free( erefs );
 459                                         ck->rs->sr_ref = NULL;
 460                                         ck->rs->sr_entry = NULL;
 461
 462                                 } else if ( test_filter( ck->op, e, ck->op->ors_filter ) == LDAP_COMPARE_TRUE )
 463                                 {
 464                                         ck->rs->sr_entry = e;
 465                                         ck->rs->sr_attrs = ck->op->ors_attrs;
 466                                         ck->rs->sr_flags = REP_ENTRY_MODIFIABLE;
 467                                         rc = send_search_entry(ck->op, ck->rs);
 468                                         ck->rs->sr_entry = NULL;
 469                                 }
 470                                 fd = 1;
 471                                 if ( rc )
 472                                         goto done;
 473                         } else {
 474                         /* Queueing up for tool mode */
 475                                 if(ck->entries == NULL) {
 476                                         ck->entries = (Entry **) ch_malloc(sizeof(Entry *) * ENTRY_BUFF_INCREMENT);
 477                                         ck->elen = ENTRY_BUFF_INCREMENT;
 478                                 }
 479                                 if(ck->eind >= ck->elen) { /* grow entries if necessary */
 480                                         ck->entries = (Entry **) ch_realloc(ck->entries, sizeof(Entry *) * (ck->elen) * 2);
 481                                         ck->elen *= 2;
 482                                 }
 483
 484                                 ck->entries[ck->eind++] = e;
 485                                 fd = 0;
 486                         }
 487                 } else {
 488                         fd = 1;
 489                 }
 490         }
 491
 492         if ( ck->op->ors_scope != LDAP_SCOPE_BASE ) {
 493                 DIR * dir_of_path;
 494                 bvlist *list = NULL, *ptr;
 495
 496                 path->bv_len -= STRLENOF( LDIF );
 497                 path->bv_val[path->bv_len] = '\0';
 498
 499                 dir_of_path = opendir(path->bv_val);
 500                 if(dir_of_path == NULL) { /* can't open directory */
 501                         if ( errno != ENOENT ) {
 502                                 /* it shouldn't be treated as an error
 503                                  * only if the directory doesn't exist */
 504                                 rc = LDAP_BUSY;
 505                                 Debug( LDAP_DEBUG_ANY,
 506                                         "=> ldif_enum_tree: failed to opendir %s (%d)\n",
 507                                         path->bv_val, errno, 0 );
 508                         }
 509                         goto done;
 510                 }
 511
 512                 while(1) {
 513                         struct berval fname, itmp;
 514                         struct dirent * dir;
 515                         bvlist *bvl, **prev;
 516
 517                         dir = readdir(dir_of_path);
 518                         if(dir == NULL) break; /* end of the directory */
 519                         fname.bv_len = strlen( dir->d_name );
 520                         if ( fname.bv_len <= STRLENOF( LDIF ))
 521                                 continue;
 522                         if ( strcmp( dir->d_name + (fname.bv_len - STRLENOF(LDIF)), LDIF))
 523                                 continue;
 524                         fname.bv_val = dir->d_name;
 525
 526                         bvl = ch_malloc( sizeof(bvlist) );
 527                         ber_dupbv( &bvl->bv, &fname );
 528                         BER_BVZERO( &bvl->num );
 529                         itmp.bv_val = ber_bvchr( &bvl->bv, IX_FSL );
 530                         if ( itmp.bv_val ) {
 531                                 char *ptr;
 532                                 itmp.bv_val++;
 533                                 itmp.bv_len = bvl->bv.bv_len
 534                                         - ( itmp.bv_val - bvl->bv.bv_val );
 535                                 ptr = ber_bvchr( &itmp, IX_FSR );
 536                                 if ( ptr ) {
 537                                         itmp.bv_len = ptr - itmp.bv_val;
 538                                         ber_dupbv( &bvl->num, &itmp );
 539                                         bvl->inum = strtol( itmp.bv_val, NULL, 0 );
 540                                         itmp.bv_val[0] = '\0';
 541                                         bvl->off = itmp.bv_val - bvl->bv.bv_val;
 542                                 }
 543                         }
 544
 545                         for (prev = &list; (ptr = *prev) != NULL; prev = &ptr->next) {
 546                                 int cmp = strcmp( bvl->bv.bv_val, ptr->bv.bv_val );
 547                                 if ( !cmp && bvl->num.bv_val )
 548                                         cmp = bvl->inum - ptr->inum;
 549                                 if ( cmp < 0 )
 550                                         break;
 551                         }
 552                         *prev = bvl;
 553                         bvl->next = ptr;
 554
 555                 }
 556                 closedir(dir_of_path);
 557
 558                 if (ck->op->ors_scope == LDAP_SCOPE_ONELEVEL)
 559                         ck->op->ors_scope = LDAP_SCOPE_BASE;
 560                 else if ( ck->op->ors_scope == LDAP_SCOPE_SUBORDINATE)
 561                         ck->op->ors_scope = LDAP_SCOPE_SUBTREE;
 562
 563                 while ( ( ptr = list ) ) {
 564                         struct berval fpath;
 565
 566                         list = ptr->next;
 567
 568                         if ( rc == LDAP_SUCCESS ) {
 569                                 if ( ptr->num.bv_val )
 570                                         AC_MEMCPY( ptr->bv.bv_val + ptr->off, ptr->num.bv_val,
 571                                                 ptr->num.bv_len );
 572                                 fullpath( path, &ptr->bv, &fpath );
 573                                 rc = r_enum_tree(ck, &fpath, 0,
 574                                         e != NULL ? &e->e_name : pdn,
 575                                         e != NULL ? &e->e_nname : pndn );
 576                                 free(fpath.bv_val);
 577                         }
 578                         if ( ptr->num.bv_val )
 579                                 free( ptr->num.bv_val );
 580                         free(ptr->bv.bv_val);
 581                         free(ptr);
 582                 }
 583         }
 584 done:
 585         if ( fd ) entry_free( e );
 586         return rc;
 587 }
 588
 589 static int
 590 enum_tree(
 591         enumCookie *ck
 592 )
 593 {
 594         struct berval path;
 595         struct berval pdn, pndn;
 596         int rc;
 597
 598         dnParent( &ck->op->o_req_dn, &pdn );
 599         dnParent( &ck->op->o_req_ndn, &pndn );
 600         dn2path( ck->op->o_bd, &ck->op->o_req_ndn, &path );
 601         rc = r_enum_tree(ck, &path, BER_BVISEMPTY( &ck->op->o_req_ndn ) ? 1 : 0, &pdn, &pndn);
 602         ch_free( path.bv_val );
 603         return rc;
 604 }
 605
 606
 607 /* Get the parent directory path, plus the LDIF suffix overwritten by a \0 */
 608 static void
 609 get_parent_path( struct berval *dnpath, struct berval *res )
 610 {
 611         int dnpathlen = dnpath->bv_len;
 612         int i;
 613
 614         for(i = dnpathlen;i>0;i--) /* find the first path seperator */
 615                 if(dnpath->bv_val[i] == LDAP_DIRSEP[0])
 616                         break;
 617         res->bv_len = i;
 618         res->bv_val = ch_malloc( res->bv_len + 1 + STRLENOF(LDIF) );
 619         strncpy(res->bv_val, dnpath->bv_val, i);
 620         strcpy(res->bv_val+i, LDIF);
 621         res->bv_val[i] = '\0';
 622 }
 623
 624 static int apply_modify_to_entry(Entry * entry,
 625                                 Modifications * modlist,
 626                                 Operation * op,
 627                                 SlapReply * rs)
 628 {
 629         char textbuf[SLAP_TEXT_BUFLEN];
 630         int rc = modlist ? LDAP_UNWILLING_TO_PERFORM : LDAP_SUCCESS;
 631         int is_oc = 0;
 632         Modification *mods;
 633
 634         if (!acl_check_modlist(op, entry, modlist)) {
 635                 return LDAP_INSUFFICIENT_ACCESS;
 636         }
 637
 638         for (; modlist != NULL; modlist = modlist->sml_next) {
 639                 mods = &modlist->sml_mod;
 640
 641                 if ( mods->sm_desc == slap_schema.si_ad_objectClass ) {
 642                         is_oc = 1;
 643                 }
 644                 switch (mods->sm_op) {
 645                 case LDAP_MOD_ADD:
 646                         rc = modify_add_values(entry, mods,
 647                                    get_permissiveModify(op),
 648                                    &rs->sr_text, textbuf,
 649                                    sizeof( textbuf ) );
 650                         break;
 651
 652                 case LDAP_MOD_DELETE:
 653                         rc = modify_delete_values(entry, mods,
 654                                 get_permissiveModify(op),
 655                                 &rs->sr_text, textbuf,
 656                                 sizeof( textbuf ) );
 657                         break;
 658
 659                 case LDAP_MOD_REPLACE:
 660                         rc = modify_replace_values(entry, mods,
 661                                  get_permissiveModify(op),
 662                                  &rs->sr_text, textbuf,
 663                                  sizeof( textbuf ) );
 664                         break;
 665
 666                 case LDAP_MOD_INCREMENT:
 667                         rc = modify_increment_values( entry,
 668                                 mods, get_permissiveModify(op),
 669                                 &rs->sr_text, textbuf,
 670                                 sizeof( textbuf ) );
 671                         break;
 672
 673                 case SLAP_MOD_SOFTADD:
 674                         mods->sm_op = LDAP_MOD_ADD;
 675                         rc = modify_add_values(entry, mods,
 676                                    get_permissiveModify(op),
 677                                    &rs->sr_text, textbuf,
 678                                    sizeof( textbuf ) );
 679                         mods->sm_op = SLAP_MOD_SOFTADD;
 680                         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
 681                                 rc = LDAP_SUCCESS;
 682                         }
 683                         break;
 684                 }
 685                 if(rc != LDAP_SUCCESS) break;
 686         }
 687
 688         if(rc == LDAP_SUCCESS) {
 689                 if ( is_oc ) {
 690                         entry->e_ocflags = 0;
 691                 }
 692                 /* check that the entry still obeys the schema */
 693                 rc = entry_schema_check( op, entry, NULL, 0, 0,
 694                           &rs->sr_text, textbuf, sizeof( textbuf ) );
 695         }
 696
 697         return rc;
 698 }
 699
 700 int
 701 ldif_back_referrals( Operation *op, SlapReply *rs )
 702 {
 703         struct ldif_info        *li = NULL;
 704         Entry                   *entry;
 705         int                     rc = LDAP_SUCCESS;
 706
 707 #if 0
 708         if ( op->o_tag == LDAP_REQ_SEARCH ) {
 709                 /* let search take care of itself */
 710                 return rc;
 711         }
 712 #endif
 713
 714         if ( get_manageDSAit( op ) ) {
 715                 /* let op take care of DSA management */
 716                 return rc;
 717         }
 718
 719         if ( BER_BVISEMPTY( &op->o_req_ndn ) ) {
 720                 /* the empty DN cannot be a referral */
 721                 return rc;
 722         }
 723
 724         li = (struct ldif_info *)op->o_bd->be_private;
 725         ldap_pvt_thread_rdwr_rlock( &li->li_rdwr );
 726         get_entry( op, &entry, NULL );
 727
 728         /* no object is found for them */
 729         if ( entry == NULL ) {
 730                 struct berval   odn = op->o_req_dn;
 731                 struct berval   ondn = op->o_req_ndn;
 732                 struct berval   pndn = ondn;
 733                 ber_len_t               min_dnlen = op->o_bd->be_nsuffix[0].bv_len;
 734
 735                 if ( min_dnlen == 0 )
 736                         min_dnlen = 1;     /* catch empty DN */
 737
 738                 for ( ; entry == NULL; ) {
 739                         dnParent( &pndn, &pndn );
 740                         if ( pndn.bv_len < min_dnlen ) {
 741                                 break;
 742                         }
 743
 744                         op->o_req_dn = pndn;
 745                         op->o_req_ndn = pndn;
 746
 747                         get_entry( op, &entry, NULL );
 748                 }
 749
 750                 ldap_pvt_thread_rdwr_runlock( &li->li_rdwr );
 751
 752                 op->o_req_dn = odn;
 753                 op->o_req_ndn = ondn;
 754
 755                 rc = LDAP_SUCCESS;
 756                 rs->sr_matched = NULL;
 757                 if ( entry != NULL ) {
 758                         Debug( LDAP_DEBUG_TRACE,
 759                                 "ldif_back_referrals: tag=%lu target=\"%s\" matched=\"%s\"\n",
 760                                 (unsigned long) op->o_tag, op->o_req_dn.bv_val, entry->e_name.bv_val );
 761
 762                         if ( is_entry_referral( entry ) ) {
 763                                 rc = LDAP_OTHER;
 764                                 rs->sr_ref = get_entry_referrals( op, entry );
 765                                 if ( rs->sr_ref ) {
 766                                         rs->sr_matched = ber_strdup_x(
 767                                         entry->e_name.bv_val, op->o_tmpmemctx );
 768                                 }
 769                         }
 770
 771                         entry_free(entry);
 772
 773                 } else if ( default_referral != NULL ) {
 774                         rc = LDAP_OTHER;
 775                         rs->sr_ref = referral_rewrite( default_referral,
 776                                 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 777                 }
 778
 779                 if ( rs->sr_ref != NULL ) {
 780                         /* send referrals */
 781                         rc = rs->sr_err = LDAP_REFERRAL;
 782                         send_ldap_result( op, rs );
 783                         ber_bvarray_free( rs->sr_ref );
 784                         rs->sr_ref = NULL;
 785
 786                 } else if ( rc != LDAP_SUCCESS ) {
 787                         rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
 788                 }
 789
 790                 if ( rs->sr_matched ) {
 791                         op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
 792                         rs->sr_matched = NULL;
 793                 }
 794
 795                 return rc;
 796         }
 797
 798         ldap_pvt_thread_rdwr_runlock( &li->li_rdwr );
 799
 800         if ( is_entry_referral( entry ) ) {
 801                 /* entry is a referral */
 802                 BerVarray refs = get_entry_referrals( op, entry );
 803                 rs->sr_ref = referral_rewrite(
 804                         refs, &entry->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 805
 806                 Debug( LDAP_DEBUG_TRACE,
 807                         "ldif_back_referrals: tag=%lu target=\"%s\" matched=\"%s\"\n",
 808                         (unsigned long) op->o_tag, op->o_req_dn.bv_val, entry->e_name.bv_val );
 809
 810                 rs->sr_matched = entry->e_name.bv_val;
 811                 if ( rs->sr_ref != NULL ) {
 812                         rc = rs->sr_err = LDAP_REFERRAL;
 813                         send_ldap_result( op, rs );
 814                         ber_bvarray_free( rs->sr_ref );
 815                         rs->sr_ref = NULL;
 816
 817                 } else {
 818                         rc = LDAP_OTHER;
 819                         rs->sr_text = "bad referral object";
 820                 }
 821
 822                 rs->sr_matched = NULL;
 823                 ber_bvarray_free( refs );
 824         }
 825
 826         entry_free( entry );
 827
 828         return rc;
 829 }
 830
 831
 832 /* LDAP operations */
 833
 834 static int
 835 ldif_back_bind( Operation *op, SlapReply *rs )
 836 {
 837         struct ldif_info *li;
 838         Attribute *a;
 839         AttributeDescription *password = slap_schema.si_ad_userPassword;
 840         int return_val;
 841         Entry *entry;
 842
 843         switch ( be_rootdn_bind( op, rs ) ) {
 844         case SLAP_CB_CONTINUE:
 845                 break;
 846
 847         default:
 848                 /* in case of success, front end will send result;
 849                  * otherwise, be_rootdn_bind() did */
 850                 return rs->sr_err;
 851         }
 852
 853         li = (struct ldif_info *) op->o_bd->be_private;
 854         ldap_pvt_thread_rdwr_rlock(&li->li_rdwr);
 855         return_val = get_entry(op, &entry, NULL);
 856
 857         /* no object is found for them */
 858         if(return_val != LDAP_SUCCESS) {
 859                 rs->sr_err = return_val = LDAP_INVALID_CREDENTIALS;
 860                 goto return_result;
 861         }
 862
 863         /* they don't have userpassword */
 864         if((a = attr_find(entry->e_attrs, password)) == NULL) {
 865                 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
 866                 return_val = 1;
 867                 goto return_result;
 868         }
 869
 870         /* authentication actually failed */
 871         if(slap_passwd_check(op, entry, a, &op->oq_bind.rb_cred,
 872                              &rs->sr_text) != 0) {
 873                 rs->sr_err = LDAP_INVALID_CREDENTIALS;
 874                 return_val = 1;
 875                 goto return_result;
 876         }
 877
 878         /* let the front-end send success */
 879         return_val = 0;
 880         goto return_result;
 881
 882  return_result:
 883         ldap_pvt_thread_rdwr_runlock(&li->li_rdwr);
 884         if(return_val != 0)
 885                 send_ldap_result( op, rs );
 886         if(entry != NULL)
 887                 entry_free(entry);
 888         return return_val;
 889 }
 890
 891 static int ldif_back_search(Operation *op, SlapReply *rs)
 892 {
 893         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
 894         enumCookie ck = { NULL, NULL, NULL, 0, 0 };
 895
 896         ck.op = op;
 897         ck.rs = rs;
 898         ldap_pvt_thread_rdwr_rlock(&li->li_rdwr);
 899         rs->sr_err = enum_tree( &ck );
 900         ldap_pvt_thread_rdwr_runlock(&li->li_rdwr);
 901         send_ldap_result(op, rs);
 902
 903         return rs->sr_err;
 904 }
 905
 906 static int ldif_back_add(Operation *op, SlapReply *rs) {
 907         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
 908         Entry * e = op->ora_e;
 909         struct berval dn = e->e_nname;
 910         struct berval leaf_path = BER_BVNULL;
 911         struct stat stats;
 912         int statres;
 913         char textbuf[SLAP_TEXT_BUFLEN];
 914
 915         Debug( LDAP_DEBUG_TRACE, "ldif_back_add: \"%s\"\n", dn.bv_val, 0, 0);
 916
 917         rs->sr_err = entry_schema_check(op, e, NULL, 0, 1,
 918                 &rs->sr_text, textbuf, sizeof( textbuf ) );
 919         if ( rs->sr_err != LDAP_SUCCESS ) goto send_res;
 920
 921         rs->sr_err = slap_add_opattrs( op,
 922                 &rs->sr_text, textbuf, sizeof( textbuf ), 1 );
 923         if ( rs->sr_err != LDAP_SUCCESS ) goto send_res;
 924
 925         ldap_pvt_thread_rdwr_wlock(&li->li_rdwr);
 926
 927         dn2path( op->o_bd, &dn, &leaf_path );
 928
 929         if(leaf_path.bv_val != NULL) {
 930                 struct berval base = BER_BVNULL;
 931                 /* build path to container and ldif of container */
 932                 get_parent_path(&leaf_path, &base);
 933
 934                 statres = stat(base.bv_val, &stats); /* check if container exists */
 935                 if(statres == -1 && errno == ENOENT) { /* container missing */
 936                         base.bv_val[base.bv_len] = '.';
 937                         statres = stat(base.bv_val, &stats); /* check for leaf node */
 938                         base.bv_val[base.bv_len] = '\0';
 939                         if(statres == -1 && errno == ENOENT) {
 940                                 rs->sr_err = LDAP_NO_SUCH_OBJECT; /* parent doesn't exist */
 941                                 rs->sr_text = "Parent does not exist";
 942                         }
 943                         else if(statres != -1) { /* create parent */
 944                                 int mkdirres = mkdir(base.bv_val, 0750);
 945                                 if(mkdirres == -1) {
 946                                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 947                                         rs->sr_text = "Could not create parent folder";
 948                                         Debug( LDAP_DEBUG_ANY, "could not create folder \"%s\": %s\n",
 949                                                 base.bv_val, STRERROR( errno ), 0 );
 950                                 }
 951                         }
 952                         else
 953                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 954                 }/* container was possibly created, move on to add the entry */
 955                 if(rs->sr_err == LDAP_SUCCESS) {
 956                         statres = stat(leaf_path.bv_val, &stats);
 957                         if(statres == -1 && errno == ENOENT) {
 958                                 rs->sr_err = spew_entry(e, &leaf_path, 1, NULL);
 959                         }
 960                         else if ( statres == -1 ) {
 961                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 962                                 Debug( LDAP_DEBUG_ANY, "could not stat file \"%s\": %s\n",
 963                                         leaf_path.bv_val, STRERROR( errno ), 0 );
 964                         }
 965                         else /* it already exists */
 966                                 rs->sr_err = LDAP_ALREADY_EXISTS;
 967                 }
 968                 SLAP_FREE(base.bv_val);
 969                 SLAP_FREE(leaf_path.bv_val);
 970         }
 971
 972         ldap_pvt_thread_rdwr_wunlock(&li->li_rdwr);
 973
 974 send_res:
 975         Debug( LDAP_DEBUG_TRACE,
 976                         "ldif_back_add: err: %d text: %s\n", rs->sr_err, rs->sr_text ?
 977                                 rs->sr_text : "", 0);
 978         send_ldap_result(op, rs);
 979         slap_graduate_commit_csn( op );
 980         return rs->sr_err;
 981 }
 982
 983 static int ldif_back_modify(Operation *op, SlapReply *rs) {
 984         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
 985         Modifications * modlst = op->orm_modlist;
 986         struct berval path;
 987         Entry *entry;
 988         int spew_res;
 989
 990         slap_mods_opattrs( op, &op->orm_modlist, 1 );
 991
 992         ldap_pvt_thread_rdwr_wlock(&li->li_rdwr);
 993
 994         rs->sr_err = get_entry( op, &entry, &path );
 995         if(entry != NULL) {
 996                 rs->sr_err = apply_modify_to_entry(entry, modlst, op, rs);
 997                 if(rs->sr_err == LDAP_SUCCESS) {
 998                         int save_errno;
 999                         spew_res = spew_entry(entry, &path, 1, &save_errno);
1000                         if(spew_res == -1) {
1001                                 Debug( LDAP_DEBUG_ANY,
1002                                         "%s ldif_back_modify: could not output entry \"%s\": %s\n",
1003                                         op->o_log_prefix, entry->e_name.bv_val, STRERROR( save_errno ) );
1004                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1005                         }
1006                 }
1007
1008                 entry_free( entry );
1009                 SLAP_FREE( path.bv_val );
1010         }
1011
1012         rs->sr_text = NULL;
1013         ldap_pvt_thread_rdwr_wunlock(&li->li_rdwr);
1014         send_ldap_result(op, rs);
1015         slap_graduate_commit_csn( op );
1016         return rs->sr_err;
1017 }
1018
1019 static int ldif_back_delete(Operation *op, SlapReply *rs) {
1020         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1021         struct berval path;
1022         int res = 0;
1023
1024         if ( BER_BVISEMPTY( &op->o_csn )) {
1025                 struct berval csn;
1026                 char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1027
1028                 csn.bv_val = csnbuf;
1029                 csn.bv_len = sizeof( csnbuf );
1030                 slap_get_csn( op, &csn, 1 );
1031         }
1032
1033         ldap_pvt_thread_rdwr_wlock(&li->li_rdwr);
1034
1035         dn2path( op->o_bd, &op->o_req_ndn, &path );
1036         path.bv_val[path.bv_len - STRLENOF(LDIF)] = '\0';
1037         res = rmdir(path.bv_val);
1038         path.bv_val[path.bv_len - STRLENOF(LDIF)] = '.';
1039         rs->sr_err = LDAP_SUCCESS;
1040         if ( res ) {
1041                 switch ( errno ) {
1042                 case ENOTEMPTY:
1043                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
1044                         break;
1045
1046                 case ENOENT:
1047                         /* is leaf, go on */
1048                         res = 0;
1049                         break;
1050
1051                 default:
1052                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1053                         break;
1054                 }
1055         }
1056
1057         if ( !res ) {
1058                 res = unlink(path.bv_val);
1059                 if ( res == -1 ) {
1060                         switch ( errno ) {
1061                         case ENOENT:
1062                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
1063                                 break;
1064
1065                         default:
1066                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1067                                 break;
1068                         }
1069                 }
1070         }
1071
1072         SLAP_FREE(path.bv_val);
1073         ldap_pvt_thread_rdwr_wunlock(&li->li_rdwr);
1074         send_ldap_result(op, rs);
1075         slap_graduate_commit_csn( op );
1076         return rs->sr_err;
1077 }
1078
1079
1080 static int
1081 ldif_move_entry(
1082         Operation *op,
1083         Entry *entry,
1084         struct berval *oldpath )
1085 {
1086         int res;
1087         int exists_res;
1088         struct berval newpath;
1089
1090         dn2path( op->o_bd, &entry->e_nname, &newpath );
1091
1092         if((entry == NULL || oldpath->bv_val == NULL) || newpath.bv_val == NULL) {
1093                 /* some object doesn't exist */
1094                 res = LDAP_NO_SUCH_OBJECT;
1095         }
1096         else { /* do the modrdn */
1097                 exists_res = open(newpath.bv_val, O_RDONLY);
1098                 if(exists_res == -1 && errno == ENOENT) {
1099                         ldap_pvt_thread_mutex_lock( &entry2str_mutex );
1100                         res = spew_entry(entry, &newpath, 0, NULL);
1101                         if(res != -1) {
1102                                 /* if this fails we should log something bad */
1103                                 res = unlink( oldpath->bv_val );
1104                                 oldpath->bv_val[oldpath->bv_len - STRLENOF(".ldif")] = '\0';
1105                                 newpath.bv_val[newpath.bv_len - STRLENOF(".ldif")] = '\0';
1106                                 res = rename( oldpath->bv_val, newpath.bv_val );
1107                                 res = LDAP_SUCCESS;
1108                         }
1109                         else {
1110                                 if(errno == ENOENT)
1111                                         res = LDAP_NO_SUCH_OBJECT;
1112                                 else
1113                                         res = LDAP_UNWILLING_TO_PERFORM;
1114                                 unlink(newpath.bv_val); /* in case file was created */
1115                         }
1116                         ldap_pvt_thread_mutex_unlock( &entry2str_mutex );
1117                 }
1118                 else if(exists_res) {
1119                         int close_res = close(exists_res);
1120                         res = LDAP_ALREADY_EXISTS;
1121                         if(close_res == -1) {
1122                         /* log heinous error */
1123                         }
1124                 }
1125                 else {
1126                         res = LDAP_UNWILLING_TO_PERFORM;
1127                 }
1128         }
1129
1130         if(newpath.bv_val != NULL)
1131                 SLAP_FREE(newpath.bv_val);
1132         return res;
1133 }
1134
1135 static int
1136 ldif_back_modrdn(Operation *op, SlapReply *rs)
1137 {
1138         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1139         struct berval new_dn = BER_BVNULL, new_ndn = BER_BVNULL;
1140         struct berval p_dn, old_path;
1141         Entry *entry;
1142         int rc;
1143
1144         slap_mods_opattrs( op, &op->orr_modlist, 1 );
1145
1146         ldap_pvt_thread_rdwr_wlock( &li->li_rdwr );
1147
1148         rc = get_entry( op, &entry, &old_path );
1149         if ( rc == LDAP_SUCCESS ) {
1150                 /* build new dn, and new ndn for the entry */
1151                 if ( op->oq_modrdn.rs_newSup != NULL ) {
1152                         struct berval   op_dn = op->o_req_dn,
1153                                         op_ndn = op->o_req_ndn;
1154                         Entry           *np;
1155
1156                         /* new superior */
1157                         p_dn = *op->oq_modrdn.rs_newSup;
1158                         op->o_req_dn = *op->oq_modrdn.rs_newSup;
1159                         op->o_req_ndn = *op->oq_modrdn.rs_nnewSup;
1160                         rc = get_entry( op, &np, NULL );
1161                         op->o_req_dn = op_dn;
1162                         op->o_req_ndn = op_ndn;
1163                         if ( rc != LDAP_SUCCESS ) {
1164                                 goto no_such_object;
1165                         }
1166                         entry_free( np );
1167                 } else {
1168                         dnParent( &entry->e_name, &p_dn );
1169                 }
1170                 build_new_dn( &new_dn, &p_dn, &op->oq_modrdn.rs_newrdn, NULL );
1171                 dnNormalize( 0, NULL, NULL, &new_dn, &new_ndn, NULL );
1172                 ber_memfree_x( entry->e_name.bv_val, NULL );
1173                 ber_memfree_x( entry->e_nname.bv_val, NULL );
1174                 entry->e_name = new_dn;
1175                 entry->e_nname = new_ndn;
1176
1177                 /* perform the modifications */
1178                 rc = apply_modify_to_entry( entry, op->orr_modlist, op, rs );
1179                 if ( rc == LDAP_SUCCESS )
1180                         rc = ldif_move_entry( op, entry, &old_path );
1181
1182 no_such_object:;
1183                 entry_free( entry );
1184                 SLAP_FREE( old_path.bv_val );
1185         }
1186
1187         rs->sr_text = "";
1188         ldap_pvt_thread_rdwr_wunlock( &li->li_rdwr );
1189         rs->sr_err = rc;
1190         send_ldap_result( op, rs );
1191         slap_graduate_commit_csn( op );
1192         return rs->sr_err;
1193 }
1194
1195
1196 /* Return LDAP_SUCCESS IFF we retrieve the specified entry. */
1197 static int
1198 ldif_back_entry_get(
1199         Operation *op,
1200         struct berval *ndn,
1201         ObjectClass *oc,
1202         AttributeDescription *at,
1203         int rw,
1204         Entry **e )
1205 {
1206         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1207         struct berval op_dn = op->o_req_dn, op_ndn = op->o_req_ndn;
1208         int rc;
1209
1210         assert( ndn != NULL );
1211         assert( !BER_BVISNULL( ndn ) );
1212
1213         ldap_pvt_thread_rdwr_rlock( &li->li_rdwr );
1214         op->o_req_dn = *ndn;
1215         op->o_req_ndn = *ndn;
1216         rc = get_entry( op, e, NULL );
1217         op->o_req_dn = op_dn;
1218         op->o_req_ndn = op_ndn;
1219         ldap_pvt_thread_rdwr_runlock( &li->li_rdwr );
1220
1221         if ( rc == LDAP_SUCCESS && oc && !is_entry_objectclass_or_sub( *e, oc ) ) {
1222                 rc = LDAP_NO_SUCH_ATTRIBUTE;
1223                 entry_free( *e );
1224                 *e = NULL;
1225         }
1226
1227         return rc;
1228 }
1229
1230
1231 /* Slap tools */
1232
1233 static int ldif_tool_entry_open(BackendDB *be, int mode) {
1234         struct ldif_info *li = (struct ldif_info *) be->be_private;
1235         li->li_tool_current = 0;
1236         return 0;
1237 }
1238
1239 static int ldif_tool_entry_close(BackendDB * be) {
1240         struct ldif_info *li = (struct ldif_info *) be->be_private;
1241
1242         SLAP_FREE(li->li_tool_cookie.entries);
1243         return 0;
1244 }
1245
1246 static ID ldif_tool_entry_next(BackendDB *be)
1247 {
1248         struct ldif_info *li = (struct ldif_info *) be->be_private;
1249         if(li->li_tool_current >= li->li_tool_cookie.eind)
1250                 return NOID;
1251         else
1252                 return ++li->li_tool_current;
1253 }
1254
1255 static ID
1256 ldif_tool_entry_first(BackendDB *be)
1257 {
1258         struct ldif_info *li = (struct ldif_info *) be->be_private;
1259
1260         if(li->li_tool_cookie.entries == NULL) {
1261                 Operation op = {0};
1262
1263                 op.o_bd = be;
1264                 op.o_req_dn = *be->be_suffix;
1265                 op.o_req_ndn = *be->be_nsuffix;
1266                 op.ors_scope = LDAP_SCOPE_SUBTREE;
1267                 li->li_tool_cookie.op = &op;
1268                 (void)enum_tree( &li->li_tool_cookie );
1269                 li->li_tool_cookie.op = NULL;
1270         }
1271         return ldif_tool_entry_next( be );
1272 }
1273
1274 static Entry * ldif_tool_entry_get(BackendDB * be, ID id) {
1275         struct ldif_info *li = (struct ldif_info *) be->be_private;
1276         Entry * e;
1277
1278         if(id > li->li_tool_cookie.eind || id < 1)
1279                 return NULL;
1280         else {
1281                 e = li->li_tool_cookie.entries[id - 1];
1282                 li->li_tool_cookie.entries[id - 1] = NULL;
1283                 return e;
1284         }
1285 }
1286
1287 static ID ldif_tool_entry_put(BackendDB * be, Entry * e, struct berval *text) {
1288         struct berval leaf_path = BER_BVNULL;
1289         struct stat stats;
1290         int statres;
1291         int res = LDAP_SUCCESS;
1292
1293         dn2path( be, &e->e_nname, &leaf_path );
1294
1295         if(leaf_path.bv_val != NULL) {
1296                 struct berval base = BER_BVNULL;
1297                 /* build path to container, and path to ldif of container */
1298                 get_parent_path(&leaf_path, &base);
1299
1300                 statres = stat(base.bv_val, &stats); /* check if container exists */
1301                 if(statres == -1 && errno == ENOENT) { /* container missing */
1302                         base.bv_val[base.bv_len] = '.';
1303                         statres = stat(base.bv_val, &stats); /* check for leaf node */
1304                         base.bv_val[base.bv_len] = '\0';
1305                         if(statres == -1 && errno == ENOENT) {
1306                                 res = LDAP_NO_SUCH_OBJECT; /* parent doesn't exist */
1307                         }
1308                         else if(statres != -1) { /* create parent */
1309                                 int mkdirres = mkdir(base.bv_val, 0750);
1310                                 if(mkdirres == -1) {
1311                                         res = LDAP_UNWILLING_TO_PERFORM;
1312                                 }
1313                         }
1314                         else
1315                                 res = LDAP_UNWILLING_TO_PERFORM;
1316                 }/* container was possibly created, move on to add the entry */
1317                 if(res == LDAP_SUCCESS) {
1318                         statres = stat(leaf_path.bv_val, &stats);
1319                         if(statres == -1 && errno == ENOENT) {
1320                                 res = spew_entry(e, &leaf_path, 0, NULL);
1321                         }
1322                         else /* it already exists */
1323                                 res = LDAP_ALREADY_EXISTS;
1324                 }
1325                 SLAP_FREE(base.bv_val);
1326                 SLAP_FREE(leaf_path.bv_val);
1327         }
1328
1329         if(res == LDAP_SUCCESS) {
1330                 return 1;
1331         }
1332         else
1333                 return NOID;
1334 }
1335
1336
1337 /* Setup */
1338
1339 static int
1340 ldif_back_db_init( BackendDB *be, ConfigReply *cr )
1341 {
1342         struct ldif_info *li;
1343
1344         li = ch_calloc( 1, sizeof(struct ldif_info) );
1345         be->be_private = li;
1346         be->be_cf_ocs = ldifocs;
1347         ldap_pvt_thread_rdwr_init(&li->li_rdwr);
1348         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_ONE_SUFFIX;
1349         return 0;
1350 }
1351
1352 static int
1353 ldif_back_db_destroy( Backend *be, ConfigReply *cr )
1354 {
1355         struct ldif_info *li = be->be_private;
1356
1357         ch_free(li->li_base_path.bv_val);
1358         ldap_pvt_thread_rdwr_destroy(&li->li_rdwr);
1359         free( be->be_private );
1360         return 0;
1361 }
1362
1363 static int
1364 ldif_back_db_open( Backend *be, ConfigReply *cr)
1365 {
1366         struct ldif_info *li = (struct ldif_info *) be->be_private;
1367         if( BER_BVISEMPTY(&li->li_base_path)) {/* missing base path */
1368                 Debug( LDAP_DEBUG_ANY, "missing base path for back-ldif\n", 0, 0, 0);
1369                 return 1;
1370         }
1371         return 0;
1372 }
1373
1374 int
1375 ldif_back_initialize(
1376                            BackendInfo  *bi
1377                            )
1378 {
1379         static char *controls[] = {
1380                 LDAP_CONTROL_MANAGEDSAIT,
1381                 NULL
1382         };
1383         int rc;
1384
1385         bi->bi_flags |=
1386                 SLAP_BFLAG_INCREMENT |
1387                 SLAP_BFLAG_REFERRALS;
1388
1389         bi->bi_controls = controls;
1390
1391         bi->bi_open = 0;
1392         bi->bi_close = 0;
1393         bi->bi_config = 0;
1394         bi->bi_destroy = 0;
1395
1396         bi->bi_db_init = ldif_back_db_init;
1397         bi->bi_db_config = config_generic_wrapper;
1398         bi->bi_db_open = ldif_back_db_open;
1399         bi->bi_db_close = 0;
1400         bi->bi_db_destroy = ldif_back_db_destroy;
1401
1402         bi->bi_op_bind = ldif_back_bind;
1403         bi->bi_op_unbind = 0;
1404         bi->bi_op_search = ldif_back_search;
1405         bi->bi_op_compare = 0;
1406         bi->bi_op_modify = ldif_back_modify;
1407         bi->bi_op_modrdn = ldif_back_modrdn;
1408         bi->bi_op_add = ldif_back_add;
1409         bi->bi_op_delete = ldif_back_delete;
1410         bi->bi_op_abandon = 0;
1411
1412         bi->bi_extended = 0;
1413
1414         bi->bi_chk_referrals = ldif_back_referrals;
1415
1416         bi->bi_connection_init = 0;
1417         bi->bi_connection_destroy = 0;
1418
1419         bi->bi_entry_get_rw = ldif_back_entry_get;
1420
1421 #if 0   /* NOTE: uncomment to completely disable access control */
1422         bi->bi_access_allowed = slap_access_always_allowed;
1423 #endif
1424
1425         bi->bi_tool_entry_open = ldif_tool_entry_open;
1426         bi->bi_tool_entry_close = ldif_tool_entry_close;
1427         bi->bi_tool_entry_first = ldif_tool_entry_first;
1428         bi->bi_tool_entry_next = ldif_tool_entry_next;
1429         bi->bi_tool_entry_get = ldif_tool_entry_get;
1430         bi->bi_tool_entry_put = ldif_tool_entry_put;
1431         bi->bi_tool_entry_reindex = 0;
1432         bi->bi_tool_sync = 0;
1433
1434         bi->bi_tool_dn2id_get = 0;
1435         bi->bi_tool_entry_modify = 0;
1436
1437         bi->bi_cf_ocs = ldifocs;
1438
1439         rc = config_register_schema( ldifcfg, ldifocs );
1440         if ( rc ) return rc;
1441         return 0;
1442 }