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         ID elen;
  39         ID 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
  54 #define LDIF    ".ldif"
  55 #define LDIF_FILETYPE_SEP       '.'                     /* LDIF[0] */
  56
  57 /*
  58  * Unsafe/translated characters in the filesystem.
  59  *
  60  * LDIF_UNSAFE_CHAR(c) returns true if the character c is not to be used
  61  * in relative filenames, except it should accept '\\' even if unsafe and
  62  * need not reject '{' and '}'.  The value should be a constant expression.
  63  *
  64  * If '\\' is unsafe, #define LDIF_ESCAPE_CHAR as a safe character.
  65  *
  66  * If '{' and '}' are unsafe, #define IX_FSL/IX_FSR as safe characters.
  67  * (Not digits, '-' or '+'.  IX_FSL == IX_FSR is allowed.)
  68  *
  69  * Characters are escaped as LDIF_ESCAPE_CHAR followed by two hex digits,
  70  * except '\\' is replaced with LDIF_ESCAPE_CHAR and {} with IX_FS[LR].
  71  * Also some LDIF special chars are hex-escaped.
  72  *
  73  * Thus an LDIF filename is a valid normalized RDN (or suffix DN)
  74  * followed by ".ldif", except with '\\' replaced with LDIF_ESCAPE_CHAR.
  75  */
  76
  77 #ifndef _WIN32
  78
  79 /*
  80  * Unix/MacOSX version.  ':' vs '/' can cause confusion on MacOSX so we
  81  * escape both.  We escape them on Unix so both OS variants get the same
  82  * filenames.
  83  */
  84 #define LDIF_ESCAPE_CHAR        '\\'
  85 #define LDIF_UNSAFE_CHAR(c)     ((c) == '/' || (c) == ':')
  86
  87 #else /* _WIN32 */
  88
  89 /* Windows version - Microsoft's list of unsafe characters, except '\\' */
  90 #define LDIF_ESCAPE_CHAR        '^'
  91 #define LDIF_UNSAFE_CHAR(c)     \
  92         ((c) == '/' || (c) == ':' || \
  93          (c) == '<' || (c) == '>' || (c) == '"' || \
  94          (c) == '|' || (c) == '?' || (c) == '*')
  95
  96 #endif /* !_WIN32 */
  97
  98 /*
  99  * Left and Right "{num}" prefix to ordered RDNs ("olcDatabase={1}bdb").
 100  * IX_DN* are for LDAP RDNs, IX_FS* for their .ldif filenames.
 101  */
 102 #define IX_DNL  '{'
 103 #define IX_DNR  '}'
 104 #ifndef IX_FSL
 105 #define IX_FSL  IX_DNL
 106 #define IX_FSR  IX_DNR
 107 #endif
 108
 109 /*
 110  * Test for unsafe chars, as well as chars handled specially by back-ldif:
 111  * - If the escape char is not '\\', it must itself be escaped.  Otherwise
 112  *   '\\' and the escape char would map to the same character.
 113  * - Escape the '.' in ".ldif", so the directory for an RDN that actually
 114  *   ends with ".ldif" can not conflict with a file of the same name.  And
 115  *   since some OSes/programs choke on multiple '.'s, escape all of them.
 116  * - If '{' and '}' are translated to some other characters, those
 117  *   characters must in turn be escaped when they occur in an RDN.
 118  */
 119 #ifndef LDIF_NEED_ESCAPE
 120 #define LDIF_NEED_ESCAPE(c) \
 121         ((LDIF_UNSAFE_CHAR(c)) || \
 122          LDIF_MAYBE_UNSAFE(c, LDIF_ESCAPE_CHAR) || \
 123          LDIF_MAYBE_UNSAFE(c, LDIF_FILETYPE_SEP) || \
 124          LDIF_MAYBE_UNSAFE(c, IX_FSL) || \
 125          (IX_FSR != IX_FSL && LDIF_MAYBE_UNSAFE(c, IX_FSR)))
 126 #endif
 127 /*
 128  * Helper macro for LDIF_NEED_ESCAPE(): Treat character x as unsafe if
 129  * back-ldif does not already treat is specially.
 130  */
 131 #define LDIF_MAYBE_UNSAFE(c, x) \
 132         (!(LDIF_UNSAFE_CHAR(x) || (x) == '\\' || (x) == IX_DNL || (x) == IX_DNR) \
 133          && (c) == (x))
 134
 135
 136 #define ENTRY_BUFF_INCREMENT 500
 137
 138 static ConfigTable ldifcfg[] = {
 139         { "directory", "dir", 2, 2, 0, ARG_BERVAL|ARG_OFFSET,
 140                 (void *)offsetof(struct ldif_info, li_base_path),
 141                 "( OLcfgDbAt:0.1 NAME 'olcDbDirectory' "
 142                         "DESC 'Directory for database content' "
 143                         "EQUALITY caseIgnoreMatch "
 144                         "SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
 145         { NULL, NULL, 0, 0, 0, ARG_IGNORED,
 146                 NULL, NULL, NULL, NULL }
 147 };
 148
 149 static ConfigOCs ldifocs[] = {
 150         { "( OLcfgDbOc:2.1 "
 151                 "NAME 'olcLdifConfig' "
 152                 "DESC 'LDIF backend configuration' "
 153                 "SUP olcDatabaseConfig "
 154                 "MUST ( olcDbDirectory ) )", Cft_Database, ldifcfg },
 155         { NULL, 0, NULL }
 156 };
 157
 158
 159 /* Set *res = LDIF filename path for the normalized DN */
 160 static void
 161 dn2path( BackendDB *be, struct berval *dn, struct berval *res )
 162 {
 163         struct ldif_info *li = (struct ldif_info *) be->be_private;
 164         struct berval *suffixdn = &be->be_nsuffix[0];
 165         const char *start, *end, *next, *p;
 166         char ch, *ptr;
 167         ber_len_t len;
 168         static const char hex[] = "0123456789ABCDEF";
 169
 170         assert( dn != NULL );
 171         assert( !BER_BVISNULL( dn ) );
 172         assert( suffixdn != NULL );
 173         assert( !BER_BVISNULL( suffixdn ) );
 174         assert( dnIsSuffix( dn, suffixdn ) );
 175
 176         start = dn->bv_val;
 177         end = start + dn->bv_len;
 178
 179         /* Room for dir, dirsep, dn, LDIF, "\hexpair"-escaping of unsafe chars */
 180         len = li->li_base_path.bv_len + dn->bv_len + (1 + STRLENOF( LDIF ));
 181         for ( p = start; p < end; ) {
 182                 ch = *p++;
 183                 if ( LDIF_NEED_ESCAPE( ch ) )
 184                         len += 2;
 185         }
 186         res->bv_val = ch_malloc( len + 1 );
 187
 188         ptr = lutil_strcopy( res->bv_val, li->li_base_path.bv_val );
 189         for ( next = end - suffixdn->bv_len; end > start; end = next ) {
 190                 /* Set p = start of DN component, next = &',' or start of DN */
 191                 while ( (p = next) > start ) {
 192                         --next;
 193                         if ( DN_SEPARATOR( *next ) )
 194                                 break;
 195                 }
 196                 /* Append <dirsep> <p..end-1: RDN or database-suffix> */
 197                 for ( *ptr++ = LDAP_DIRSEP[0]; p < end; *ptr++ = ch ) {
 198                         ch = *p++;
 199                         if ( LDIF_ESCAPE_CHAR != '\\' && ch == '\\' ) {
 200                                 ch = LDIF_ESCAPE_CHAR;
 201                         } else if ( IX_FSL != IX_DNL && ch == IX_DNL ) {
 202                                 ch = IX_FSL;
 203                         } else if ( IX_FSR != IX_DNR && ch == IX_DNR ) {
 204                                 ch = IX_FSR;
 205                         } else if ( LDIF_NEED_ESCAPE( ch ) ) {
 206                                 *ptr++ = LDIF_ESCAPE_CHAR;
 207                                 *ptr++ = hex[(ch & 0xFFU) >> 4];
 208                                 ch = hex[ch & 0x0FU];
 209                         }
 210                 }
 211         }
 212         ptr = lutil_strcopy( ptr, LDIF );
 213         res->bv_len = ptr - res->bv_val;
 214
 215         assert( res->bv_len <= len );
 216 }
 217
 218 static char * slurp_file(int fd) {
 219         int read_chars_total = 0;
 220         int read_chars = 0;
 221         int entry_size;
 222         char * entry;
 223         char * entry_pos;
 224         struct stat st;
 225
 226         fstat(fd, &st);
 227         entry_size = st.st_size;
 228         entry = ch_malloc( entry_size+1 );
 229         entry_pos = entry;
 230
 231         while(1) {
 232                 read_chars = read(fd, (void *) entry_pos, entry_size - read_chars_total);
 233                 if(read_chars == -1) {
 234                         SLAP_FREE(entry);
 235                         return NULL;
 236                 }
 237                 if(read_chars == 0) {
 238                         entry[read_chars_total] = '\0';
 239                         break;
 240                 }
 241                 else {
 242                         read_chars_total += read_chars;
 243                         entry_pos += read_chars;
 244                 }
 245         }
 246         return entry;
 247 }
 248
 249 /*
 250  * return nonnegative for success or -1 for error
 251  * do not return numbers less than -1
 252  */
 253 static int spew_file(int fd, char * spew, int len) {
 254         int writeres = 0;
 255
 256         while(len > 0) {
 257                 writeres = write(fd, spew, len);
 258                 if(writeres == -1) {
 259                         return -1;
 260                 }
 261                 else {
 262                         spew += writeres;
 263                         len -= writeres;
 264                 }
 265         }
 266         return writeres;
 267 }
 268
 269 static int
 270 spew_entry( Entry * e, struct berval * path, int dolock, int *save_errnop )
 271 {
 272         int rs, save_errno = 0;
 273         int openres;
 274         int res, spew_res;
 275         int entry_length;
 276         char * entry_as_string;
 277         char *tmpfname = NULL;
 278
 279         tmpfname = ch_malloc( path->bv_len + STRLENOF( "XXXXXX" ) + 1 );
 280         AC_MEMCPY( tmpfname, path->bv_val, path->bv_len );
 281         AC_MEMCPY( &tmpfname[ path->bv_len ], "XXXXXX", STRLENOF( "XXXXXX" ) + 1 );
 282
 283         openres = mkstemp( tmpfname );
 284         if ( openres == -1 ) {
 285                 save_errno = errno;
 286                 rs = LDAP_UNWILLING_TO_PERFORM;
 287                 Debug( LDAP_DEBUG_ANY, "could not create tmpfile \"%s\": %s\n",
 288                         tmpfname, STRERROR( save_errno ), 0 );
 289
 290         } else {
 291                 struct berval rdn;
 292                 int tmp;
 293
 294                 /* Only save the RDN onto disk */
 295                 dnRdn( &e->e_name, &rdn );
 296                 if ( rdn.bv_len != e->e_name.bv_len ) {
 297                         e->e_name.bv_val[rdn.bv_len] = '\0';
 298                         tmp = e->e_name.bv_len;
 299                         e->e_name.bv_len = rdn.bv_len;
 300                         rdn.bv_len = tmp;
 301                 }
 302
 303                 spew_res = -2;
 304                 if ( dolock ) {
 305                         ldap_pvt_thread_mutex_lock(&entry2str_mutex);
 306                 }
 307
 308                 entry_as_string = entry2str(e, &entry_length);
 309                 if ( entry_as_string != NULL ) {
 310                         spew_res = spew_file( openres,
 311                                 entry_as_string, entry_length );
 312                         if ( spew_res == -1 ) {
 313                                 save_errno = errno;
 314                         }
 315                 }
 316
 317                 if ( dolock ) {
 318                         ldap_pvt_thread_mutex_unlock(&entry2str_mutex);
 319                 }
 320
 321                 /* Restore full DN */
 322                 if ( rdn.bv_len != e->e_name.bv_len ) {
 323                         e->e_name.bv_val[e->e_name.bv_len] = ',';
 324                         e->e_name.bv_len = rdn.bv_len;
 325                 }
 326
 327                 res = close( openres );
 328                 rs = LDAP_UNWILLING_TO_PERFORM;
 329
 330                 if ( spew_res > -2 ) {
 331                         if ( res == -1 || spew_res == -1 ) {
 332                                 if ( save_errno == 0 ) {
 333                                         save_errno = errno;
 334                                 }
 335                                 Debug( LDAP_DEBUG_ANY, "write error to tmpfile \"%s\": %s\n",
 336                                         tmpfname, STRERROR( save_errno ), 0 );
 337
 338                         } else {
 339                                 res = rename( tmpfname, path->bv_val );
 340                                 if ( res == 0 ) {
 341                                         rs = LDAP_SUCCESS;
 342
 343                                 } else {
 344                                         save_errno = errno;
 345                                         switch ( save_errno ) {
 346                                         case ENOENT:
 347                                                 rs = LDAP_NO_SUCH_OBJECT;
 348                                                 break;
 349
 350                                         default:
 351                                                 break;
 352                                         }
 353                                 }
 354                         }
 355                 }
 356
 357                 if ( rs != LDAP_SUCCESS ) {
 358                         unlink( tmpfname );
 359                 }
 360         }
 361
 362         ch_free( tmpfname );
 363
 364         if ( rs != LDAP_SUCCESS && save_errnop != NULL ) {
 365                 *save_errnop = save_errno;
 366         }
 367
 368         return rs;
 369 }
 370
 371 static Entry * get_entry_for_fd(int fd,
 372         struct berval *pdn,
 373         struct berval *pndn)
 374 {
 375         char * entry = (char *) slurp_file(fd);
 376         Entry * ldentry = NULL;
 377
 378         /* error reading file */
 379         if(entry == NULL) {
 380                 goto return_value;
 381         }
 382
 383         ldentry = str2entry(entry);
 384         if ( ldentry ) {
 385                 struct berval rdn;
 386                 rdn = ldentry->e_name;
 387                 build_new_dn( &ldentry->e_name, pdn, &rdn, NULL );
 388                 ch_free( rdn.bv_val );
 389                 rdn = ldentry->e_nname;
 390                 build_new_dn( &ldentry->e_nname, pndn, &rdn, NULL );
 391                 ch_free( rdn.bv_val );
 392         }
 393
 394  return_value:
 395         if(fd != -1) {
 396                 if(close(fd) != 0) {
 397                         /* log error */
 398                 }
 399         }
 400         if(entry != NULL)
 401                 SLAP_FREE(entry);
 402         return ldentry;
 403 }
 404
 405 static int
 406 get_entry(
 407         Operation *op,
 408         Entry **entryp,
 409         struct berval *pathp )
 410 {
 411         int rc;
 412         struct berval path, pdn, pndn;
 413         int fd;
 414
 415         dnParent(&op->o_req_dn, &pdn);
 416         dnParent(&op->o_req_ndn, &pndn);
 417         dn2path( op->o_bd, &op->o_req_ndn, &path );
 418         fd = open(path.bv_val, O_RDONLY);
 419         /* error opening file (mebbe should log error) */
 420         if ( fd == -1 && ( errno != ENOENT || op->o_tag != LDAP_REQ_ADD ) ) {
 421                 Debug( LDAP_DEBUG_ANY, "failed to open file \"%s\": %s\n",
 422                         path.bv_val, STRERROR(errno), 0 );
 423         }
 424         *entryp = fd < 0 ? NULL : get_entry_for_fd( fd, &pdn, &pndn );
 425         rc = *entryp ? LDAP_SUCCESS : LDAP_NO_SUCH_OBJECT;
 426
 427         if ( rc == LDAP_SUCCESS && pathp != NULL ) {
 428                 *pathp = path;
 429         } else {
 430                 SLAP_FREE(path.bv_val);
 431         }
 432         return rc;
 433 }
 434
 435 static void fullpath(struct berval *base, struct berval *name, struct berval *res) {
 436         char *ptr;
 437         res->bv_len = name->bv_len + base->bv_len + 1;
 438         res->bv_val = ch_malloc( res->bv_len + 1 );
 439         strcpy(res->bv_val, base->bv_val);
 440         ptr = res->bv_val + base->bv_len;
 441         *ptr++ = LDAP_DIRSEP[0];
 442         strcpy(ptr, name->bv_val);
 443 }
 444
 445 typedef struct bvlist {
 446         struct bvlist *next;
 447         struct berval bv;
 448         struct berval num;
 449         int inum;
 450         int off;
 451 } bvlist;
 452
 453
 454 static int r_enum_tree(enumCookie *ck, struct berval *path, int base,
 455         struct berval *pdn, struct berval *pndn)
 456 {
 457         Entry *e = NULL;
 458         int fd = 0, rc = LDAP_SUCCESS;
 459
 460         if ( !base ) {
 461                 fd = open( path->bv_val, O_RDONLY );
 462                 if ( fd < 0 ) {
 463                         Debug( LDAP_DEBUG_TRACE,
 464                                 "=> ldif_enum_tree: failed to open %s: %s\n",
 465                                 path->bv_val, STRERROR(errno), 0 );
 466                         return LDAP_NO_SUCH_OBJECT;
 467                 }
 468
 469                 e = get_entry_for_fd(fd, pdn, pndn);
 470                 if ( !e ) {
 471                         Debug( LDAP_DEBUG_ANY,
 472                                 "=> ldif_enum_tree: failed to read entry for %s\n",
 473                                 path->bv_val, 0, 0 );
 474                         return LDAP_BUSY;
 475                 }
 476
 477                 if ( ck->op->ors_scope == LDAP_SCOPE_BASE ||
 478                         ck->op->ors_scope == LDAP_SCOPE_SUBTREE ) {
 479                         /* Send right away? */
 480                         if ( ck->rs ) {
 481                                 /*
 482                                  * if it's a referral, add it to the list of referrals. only do
 483                                  * this for non-base searches, and don't check the filter
 484                                  * explicitly here since it's only a candidate anyway.
 485                                  */
 486                                 if ( !get_manageDSAit( ck->op )
 487                                                 && ck->op->ors_scope != LDAP_SCOPE_BASE
 488                                                 && is_entry_referral( e ) )
 489                                 {
 490                                         BerVarray erefs = get_entry_referrals( ck->op, e );
 491                                         ck->rs->sr_ref = referral_rewrite( erefs,
 492                                                         &e->e_name, NULL,
 493                                                         ck->op->oq_search.rs_scope == LDAP_SCOPE_ONELEVEL
 494                                                                 ? LDAP_SCOPE_BASE : LDAP_SCOPE_SUBTREE );
 495
 496                                         ck->rs->sr_entry = e;
 497                                         rc = send_search_reference( ck->op, ck->rs );
 498                                         ber_bvarray_free( ck->rs->sr_ref );
 499                                         ber_bvarray_free( erefs );
 500                                         ck->rs->sr_ref = NULL;
 501                                         ck->rs->sr_entry = NULL;
 502
 503                                 } else if ( test_filter( ck->op, e, ck->op->ors_filter ) == LDAP_COMPARE_TRUE )
 504                                 {
 505                                         ck->rs->sr_entry = e;
 506                                         ck->rs->sr_attrs = ck->op->ors_attrs;
 507                                         ck->rs->sr_flags = REP_ENTRY_MODIFIABLE;
 508                                         rc = send_search_entry(ck->op, ck->rs);
 509                                         ck->rs->sr_entry = NULL;
 510                                 }
 511                                 fd = 1;
 512                                 if ( rc )
 513                                         goto done;
 514                         } else {
 515                         /* Queueing up for tool mode */
 516                                 if(ck->entries == NULL) {
 517                                         ck->entries = (Entry **) ch_malloc(sizeof(Entry *) * ENTRY_BUFF_INCREMENT);
 518                                         ck->elen = ENTRY_BUFF_INCREMENT;
 519                                 }
 520                                 if(ck->eind >= ck->elen) { /* grow entries if necessary */
 521                                         ck->entries = (Entry **) ch_realloc(ck->entries, sizeof(Entry *) * (ck->elen) * 2);
 522                                         ck->elen *= 2;
 523                                 }
 524
 525                                 ck->entries[ck->eind++] = e;
 526                                 fd = 0;
 527                         }
 528                 } else {
 529                         fd = 1;
 530                 }
 531         }
 532
 533         if ( ck->op->ors_scope != LDAP_SCOPE_BASE ) {
 534                 DIR * dir_of_path;
 535                 bvlist *list = NULL, *ptr;
 536
 537                 path->bv_len -= STRLENOF( LDIF );
 538                 path->bv_val[path->bv_len] = '\0';
 539
 540                 dir_of_path = opendir(path->bv_val);
 541                 if(dir_of_path == NULL) { /* can't open directory */
 542                         if ( errno != ENOENT ) {
 543                                 /* it shouldn't be treated as an error
 544                                  * only if the directory doesn't exist */
 545                                 rc = LDAP_BUSY;
 546                                 Debug( LDAP_DEBUG_ANY,
 547                                         "=> ldif_enum_tree: failed to opendir %s (%d)\n",
 548                                         path->bv_val, errno, 0 );
 549                         }
 550                         goto done;
 551                 }
 552
 553                 while(1) {
 554                         struct berval fname, itmp;
 555                         struct dirent * dir;
 556                         bvlist *bvl, **prev;
 557
 558                         dir = readdir(dir_of_path);
 559                         if(dir == NULL) break; /* end of the directory */
 560                         fname.bv_len = strlen( dir->d_name );
 561                         if ( fname.bv_len <= STRLENOF( LDIF ))
 562                                 continue;
 563                         if ( strcmp( dir->d_name + (fname.bv_len - STRLENOF(LDIF)), LDIF))
 564                                 continue;
 565                         fname.bv_val = dir->d_name;
 566
 567                         bvl = ch_malloc( sizeof(bvlist) );
 568                         ber_dupbv( &bvl->bv, &fname );
 569                         BER_BVZERO( &bvl->num );
 570                         itmp.bv_val = ber_bvchr( &bvl->bv, IX_FSL );
 571                         if ( itmp.bv_val ) {
 572                                 char *ptr;
 573                                 itmp.bv_val++;
 574                                 itmp.bv_len = bvl->bv.bv_len
 575                                         - ( itmp.bv_val - bvl->bv.bv_val );
 576                                 ptr = ber_bvchr( &itmp, IX_FSR );
 577                                 if ( ptr ) {
 578                                         itmp.bv_len = ptr - itmp.bv_val;
 579                                         ber_dupbv( &bvl->num, &itmp );
 580                                         bvl->inum = strtol( itmp.bv_val, NULL, 0 );
 581                                         itmp.bv_val[0] = '\0';
 582                                         bvl->off = itmp.bv_val - bvl->bv.bv_val;
 583                                 }
 584                         }
 585
 586                         for (prev = &list; (ptr = *prev) != NULL; prev = &ptr->next) {
 587                                 int cmp = strcmp( bvl->bv.bv_val, ptr->bv.bv_val );
 588                                 if ( !cmp && bvl->num.bv_val )
 589                                         cmp = bvl->inum - ptr->inum;
 590                                 if ( cmp < 0 )
 591                                         break;
 592                         }
 593                         *prev = bvl;
 594                         bvl->next = ptr;
 595
 596                 }
 597                 closedir(dir_of_path);
 598
 599                 if (ck->op->ors_scope == LDAP_SCOPE_ONELEVEL)
 600                         ck->op->ors_scope = LDAP_SCOPE_BASE;
 601                 else if ( ck->op->ors_scope == LDAP_SCOPE_SUBORDINATE)
 602                         ck->op->ors_scope = LDAP_SCOPE_SUBTREE;
 603
 604                 while ( ( ptr = list ) ) {
 605                         struct berval fpath;
 606
 607                         list = ptr->next;
 608
 609                         if ( rc == LDAP_SUCCESS ) {
 610                                 if ( ptr->num.bv_val )
 611                                         AC_MEMCPY( ptr->bv.bv_val + ptr->off, ptr->num.bv_val,
 612                                                 ptr->num.bv_len );
 613                                 fullpath( path, &ptr->bv, &fpath );
 614                                 rc = r_enum_tree(ck, &fpath, 0,
 615                                         e != NULL ? &e->e_name : pdn,
 616                                         e != NULL ? &e->e_nname : pndn );
 617                                 free(fpath.bv_val);
 618                         }
 619                         if ( ptr->num.bv_val )
 620                                 free( ptr->num.bv_val );
 621                         free(ptr->bv.bv_val);
 622                         free(ptr);
 623                 }
 624         }
 625 done:
 626         if ( fd ) entry_free( e );
 627         return rc;
 628 }
 629
 630 static int
 631 enum_tree(
 632         enumCookie *ck
 633 )
 634 {
 635         struct berval path;
 636         struct berval pdn, pndn;
 637         int rc;
 638
 639         dnParent( &ck->op->o_req_dn, &pdn );
 640         dnParent( &ck->op->o_req_ndn, &pndn );
 641         dn2path( ck->op->o_bd, &ck->op->o_req_ndn, &path );
 642         rc = r_enum_tree(ck, &path, BER_BVISEMPTY( &ck->op->o_req_ndn ) ? 1 : 0, &pdn, &pndn);
 643         ch_free( path.bv_val );
 644         return rc;
 645 }
 646
 647
 648 /* Get the parent directory path, plus the LDIF suffix overwritten by a \0 */
 649 static void
 650 get_parent_path( struct berval *dnpath, struct berval *res )
 651 {
 652         int dnpathlen = dnpath->bv_len;
 653         int i;
 654
 655         for(i = dnpathlen;i>0;i--) /* find the first path seperator */
 656                 if(dnpath->bv_val[i] == LDAP_DIRSEP[0])
 657                         break;
 658         res->bv_len = i;
 659         res->bv_val = ch_malloc( res->bv_len + 1 + STRLENOF(LDIF) );
 660         strncpy(res->bv_val, dnpath->bv_val, i);
 661         strcpy(res->bv_val+i, LDIF);
 662         res->bv_val[i] = '\0';
 663 }
 664
 665 static int apply_modify_to_entry(Entry * entry,
 666                                 Modifications * modlist,
 667                                 Operation * op,
 668                                 SlapReply * rs)
 669 {
 670         char textbuf[SLAP_TEXT_BUFLEN];
 671         int rc = modlist ? LDAP_UNWILLING_TO_PERFORM : LDAP_SUCCESS;
 672         int is_oc = 0;
 673         Modification *mods;
 674
 675         if (!acl_check_modlist(op, entry, modlist)) {
 676                 return LDAP_INSUFFICIENT_ACCESS;
 677         }
 678
 679         for (; modlist != NULL; modlist = modlist->sml_next) {
 680                 mods = &modlist->sml_mod;
 681
 682                 if ( mods->sm_desc == slap_schema.si_ad_objectClass ) {
 683                         is_oc = 1;
 684                 }
 685                 switch (mods->sm_op) {
 686                 case LDAP_MOD_ADD:
 687                         rc = modify_add_values(entry, mods,
 688                                    get_permissiveModify(op),
 689                                    &rs->sr_text, textbuf,
 690                                    sizeof( textbuf ) );
 691                         break;
 692
 693                 case LDAP_MOD_DELETE:
 694                         rc = modify_delete_values(entry, mods,
 695                                 get_permissiveModify(op),
 696                                 &rs->sr_text, textbuf,
 697                                 sizeof( textbuf ) );
 698                         break;
 699
 700                 case LDAP_MOD_REPLACE:
 701                         rc = modify_replace_values(entry, mods,
 702                                  get_permissiveModify(op),
 703                                  &rs->sr_text, textbuf,
 704                                  sizeof( textbuf ) );
 705                         break;
 706
 707                 case LDAP_MOD_INCREMENT:
 708                         rc = modify_increment_values( entry,
 709                                 mods, get_permissiveModify(op),
 710                                 &rs->sr_text, textbuf,
 711                                 sizeof( textbuf ) );
 712                         break;
 713
 714                 case SLAP_MOD_SOFTADD:
 715                         mods->sm_op = LDAP_MOD_ADD;
 716                         rc = modify_add_values(entry, mods,
 717                                    get_permissiveModify(op),
 718                                    &rs->sr_text, textbuf,
 719                                    sizeof( textbuf ) );
 720                         mods->sm_op = SLAP_MOD_SOFTADD;
 721                         if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
 722                                 rc = LDAP_SUCCESS;
 723                         }
 724                         break;
 725                 }
 726                 if(rc != LDAP_SUCCESS) break;
 727         }
 728
 729         if(rc == LDAP_SUCCESS) {
 730                 if ( is_oc ) {
 731                         entry->e_ocflags = 0;
 732                 }
 733                 /* check that the entry still obeys the schema */
 734                 rc = entry_schema_check( op, entry, NULL, 0, 0,
 735                           &rs->sr_text, textbuf, sizeof( textbuf ) );
 736         }
 737
 738         return rc;
 739 }
 740
 741 int
 742 ldif_back_referrals( Operation *op, SlapReply *rs )
 743 {
 744         struct ldif_info        *li = NULL;
 745         Entry                   *entry;
 746         int                     rc = LDAP_SUCCESS;
 747
 748 #if 0
 749         if ( op->o_tag == LDAP_REQ_SEARCH ) {
 750                 /* let search take care of itself */
 751                 return rc;
 752         }
 753 #endif
 754
 755         if ( get_manageDSAit( op ) ) {
 756                 /* let op take care of DSA management */
 757                 return rc;
 758         }
 759
 760         if ( BER_BVISEMPTY( &op->o_req_ndn ) ) {
 761                 /* the empty DN cannot be a referral */
 762                 return rc;
 763         }
 764
 765         li = (struct ldif_info *)op->o_bd->be_private;
 766         ldap_pvt_thread_rdwr_rlock( &li->li_rdwr );
 767         get_entry( op, &entry, NULL );
 768
 769         /* no object is found for them */
 770         if ( entry == NULL ) {
 771                 struct berval   odn = op->o_req_dn;
 772                 struct berval   ondn = op->o_req_ndn;
 773                 struct berval   pndn = ondn;
 774                 ber_len_t               min_dnlen = op->o_bd->be_nsuffix[0].bv_len;
 775
 776                 if ( min_dnlen == 0 )
 777                         min_dnlen = 1;     /* catch empty DN */
 778
 779                 for ( ; entry == NULL; ) {
 780                         dnParent( &pndn, &pndn );
 781                         if ( pndn.bv_len < min_dnlen ) {
 782                                 break;
 783                         }
 784
 785                         op->o_req_dn = pndn;
 786                         op->o_req_ndn = pndn;
 787
 788                         get_entry( op, &entry, NULL );
 789                 }
 790
 791                 ldap_pvt_thread_rdwr_runlock( &li->li_rdwr );
 792
 793                 op->o_req_dn = odn;
 794                 op->o_req_ndn = ondn;
 795
 796                 rc = LDAP_SUCCESS;
 797                 rs->sr_matched = NULL;
 798                 if ( entry != NULL ) {
 799                         Debug( LDAP_DEBUG_TRACE,
 800                                 "ldif_back_referrals: tag=%lu target=\"%s\" matched=\"%s\"\n",
 801                                 (unsigned long) op->o_tag, op->o_req_dn.bv_val, entry->e_name.bv_val );
 802
 803                         if ( is_entry_referral( entry ) ) {
 804                                 rc = LDAP_OTHER;
 805                                 rs->sr_ref = get_entry_referrals( op, entry );
 806                                 if ( rs->sr_ref ) {
 807                                         rs->sr_matched = ber_strdup_x(
 808                                         entry->e_name.bv_val, op->o_tmpmemctx );
 809                                 }
 810                         }
 811
 812                         entry_free(entry);
 813
 814                 } else if ( default_referral != NULL ) {
 815                         rc = LDAP_OTHER;
 816                         rs->sr_ref = referral_rewrite( default_referral,
 817                                 NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 818                 }
 819
 820                 if ( rs->sr_ref != NULL ) {
 821                         /* send referrals */
 822                         rc = rs->sr_err = LDAP_REFERRAL;
 823                         send_ldap_result( op, rs );
 824                         ber_bvarray_free( rs->sr_ref );
 825                         rs->sr_ref = NULL;
 826
 827                 } else if ( rc != LDAP_SUCCESS ) {
 828                         rs->sr_text = rs->sr_matched ? "bad referral object" : NULL;
 829                 }
 830
 831                 if ( rs->sr_matched ) {
 832                         op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
 833                         rs->sr_matched = NULL;
 834                 }
 835
 836                 return rc;
 837         }
 838
 839         ldap_pvt_thread_rdwr_runlock( &li->li_rdwr );
 840
 841         if ( is_entry_referral( entry ) ) {
 842                 /* entry is a referral */
 843                 BerVarray refs = get_entry_referrals( op, entry );
 844                 rs->sr_ref = referral_rewrite(
 845                         refs, &entry->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
 846
 847                 Debug( LDAP_DEBUG_TRACE,
 848                         "ldif_back_referrals: tag=%lu target=\"%s\" matched=\"%s\"\n",
 849                         (unsigned long) op->o_tag, op->o_req_dn.bv_val, entry->e_name.bv_val );
 850
 851                 rs->sr_matched = entry->e_name.bv_val;
 852                 if ( rs->sr_ref != NULL ) {
 853                         rc = rs->sr_err = LDAP_REFERRAL;
 854                         send_ldap_result( op, rs );
 855                         ber_bvarray_free( rs->sr_ref );
 856                         rs->sr_ref = NULL;
 857
 858                 } else {
 859                         rc = LDAP_OTHER;
 860                         rs->sr_text = "bad referral object";
 861                 }
 862
 863                 rs->sr_matched = NULL;
 864                 ber_bvarray_free( refs );
 865         }
 866
 867         entry_free( entry );
 868
 869         return rc;
 870 }
 871
 872
 873 /* LDAP operations */
 874
 875 static int
 876 ldif_back_bind( Operation *op, SlapReply *rs )
 877 {
 878         struct ldif_info *li;
 879         Attribute *a;
 880         AttributeDescription *password = slap_schema.si_ad_userPassword;
 881         int return_val;
 882         Entry *entry;
 883
 884         switch ( be_rootdn_bind( op, rs ) ) {
 885         case SLAP_CB_CONTINUE:
 886                 break;
 887
 888         default:
 889                 /* in case of success, front end will send result;
 890                  * otherwise, be_rootdn_bind() did */
 891                 return rs->sr_err;
 892         }
 893
 894         li = (struct ldif_info *) op->o_bd->be_private;
 895         ldap_pvt_thread_rdwr_rlock(&li->li_rdwr);
 896         return_val = get_entry(op, &entry, NULL);
 897
 898         /* no object is found for them */
 899         if(return_val != LDAP_SUCCESS) {
 900                 rs->sr_err = return_val = LDAP_INVALID_CREDENTIALS;
 901                 goto return_result;
 902         }
 903
 904         /* they don't have userpassword */
 905         if((a = attr_find(entry->e_attrs, password)) == NULL) {
 906                 rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
 907                 return_val = 1;
 908                 goto return_result;
 909         }
 910
 911         /* authentication actually failed */
 912         if(slap_passwd_check(op, entry, a, &op->oq_bind.rb_cred,
 913                              &rs->sr_text) != 0) {
 914                 rs->sr_err = LDAP_INVALID_CREDENTIALS;
 915                 return_val = 1;
 916                 goto return_result;
 917         }
 918
 919         /* let the front-end send success */
 920         return_val = 0;
 921         goto return_result;
 922
 923  return_result:
 924         ldap_pvt_thread_rdwr_runlock(&li->li_rdwr);
 925         if(return_val != 0)
 926                 send_ldap_result( op, rs );
 927         if(entry != NULL)
 928                 entry_free(entry);
 929         return return_val;
 930 }
 931
 932 static int ldif_back_search(Operation *op, SlapReply *rs)
 933 {
 934         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
 935         enumCookie ck = { NULL, NULL, NULL, 0, 0 };
 936
 937         ck.op = op;
 938         ck.rs = rs;
 939         ldap_pvt_thread_rdwr_rlock(&li->li_rdwr);
 940         rs->sr_err = enum_tree( &ck );
 941         ldap_pvt_thread_rdwr_runlock(&li->li_rdwr);
 942         send_ldap_result(op, rs);
 943
 944         return rs->sr_err;
 945 }
 946
 947 static int ldif_back_add(Operation *op, SlapReply *rs) {
 948         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
 949         Entry * e = op->ora_e;
 950         struct berval dn = e->e_nname;
 951         struct berval leaf_path = BER_BVNULL;
 952         struct stat stats;
 953         int statres;
 954         char textbuf[SLAP_TEXT_BUFLEN];
 955
 956         Debug( LDAP_DEBUG_TRACE, "ldif_back_add: \"%s\"\n", dn.bv_val, 0, 0);
 957
 958         rs->sr_err = entry_schema_check(op, e, NULL, 0, 1,
 959                 &rs->sr_text, textbuf, sizeof( textbuf ) );
 960         if ( rs->sr_err != LDAP_SUCCESS ) goto send_res;
 961
 962         rs->sr_err = slap_add_opattrs( op,
 963                 &rs->sr_text, textbuf, sizeof( textbuf ), 1 );
 964         if ( rs->sr_err != LDAP_SUCCESS ) goto send_res;
 965
 966         ldap_pvt_thread_rdwr_wlock(&li->li_rdwr);
 967
 968         dn2path( op->o_bd, &dn, &leaf_path );
 969
 970         if(leaf_path.bv_val != NULL) {
 971                 struct berval base = BER_BVNULL;
 972                 /* build path to container and ldif of container */
 973                 get_parent_path(&leaf_path, &base);
 974
 975                 statres = stat(base.bv_val, &stats); /* check if container exists */
 976                 if(statres == -1 && errno == ENOENT) { /* container missing */
 977                         base.bv_val[base.bv_len] = LDIF_FILETYPE_SEP;
 978                         statres = stat(base.bv_val, &stats); /* check for leaf node */
 979                         base.bv_val[base.bv_len] = '\0';
 980                         if(statres == -1 && errno == ENOENT) {
 981                                 rs->sr_err = LDAP_NO_SUCH_OBJECT; /* parent doesn't exist */
 982                                 rs->sr_text = "Parent does not exist";
 983                         }
 984                         else if(statres != -1) { /* create parent */
 985                                 int mkdirres = mkdir(base.bv_val, 0750);
 986                                 if(mkdirres == -1) {
 987                                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 988                                         rs->sr_text = "Could not create parent folder";
 989                                         Debug( LDAP_DEBUG_ANY, "could not create folder \"%s\": %s\n",
 990                                                 base.bv_val, STRERROR( errno ), 0 );
 991                                 }
 992                         }
 993                         else
 994                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 995                 }/* container was possibly created, move on to add the entry */
 996                 if(rs->sr_err == LDAP_SUCCESS) {
 997                         statres = stat(leaf_path.bv_val, &stats);
 998                         if(statres == -1 && errno == ENOENT) {
 999                                 rs->sr_err = spew_entry(e, &leaf_path, 1, NULL);
1000                         }
1001                         else if ( statres == -1 ) {
1002                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1003                                 Debug( LDAP_DEBUG_ANY, "could not stat file \"%s\": %s\n",
1004                                         leaf_path.bv_val, STRERROR( errno ), 0 );
1005                         }
1006                         else /* it already exists */
1007                                 rs->sr_err = LDAP_ALREADY_EXISTS;
1008                 }
1009                 SLAP_FREE(base.bv_val);
1010                 SLAP_FREE(leaf_path.bv_val);
1011         }
1012
1013         ldap_pvt_thread_rdwr_wunlock(&li->li_rdwr);
1014
1015 send_res:
1016         Debug( LDAP_DEBUG_TRACE,
1017                         "ldif_back_add: err: %d text: %s\n", rs->sr_err, rs->sr_text ?
1018                                 rs->sr_text : "", 0);
1019         send_ldap_result(op, rs);
1020         slap_graduate_commit_csn( op );
1021         return rs->sr_err;
1022 }
1023
1024 static int ldif_back_modify(Operation *op, SlapReply *rs) {
1025         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1026         Modifications * modlst = op->orm_modlist;
1027         struct berval path;
1028         Entry *entry;
1029         int spew_res;
1030
1031         slap_mods_opattrs( op, &op->orm_modlist, 1 );
1032
1033         ldap_pvt_thread_rdwr_wlock(&li->li_rdwr);
1034
1035         rs->sr_err = get_entry( op, &entry, &path );
1036         if(entry != NULL) {
1037                 rs->sr_err = apply_modify_to_entry(entry, modlst, op, rs);
1038                 if(rs->sr_err == LDAP_SUCCESS) {
1039                         int save_errno;
1040                         spew_res = spew_entry(entry, &path, 1, &save_errno);
1041                         if(spew_res == -1) {
1042                                 Debug( LDAP_DEBUG_ANY,
1043                                         "%s ldif_back_modify: could not output entry \"%s\": %s\n",
1044                                         op->o_log_prefix, entry->e_name.bv_val, STRERROR( save_errno ) );
1045                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1046                         }
1047                 }
1048
1049                 entry_free( entry );
1050                 SLAP_FREE( path.bv_val );
1051         }
1052
1053         rs->sr_text = NULL;
1054         ldap_pvt_thread_rdwr_wunlock(&li->li_rdwr);
1055         send_ldap_result(op, rs);
1056         slap_graduate_commit_csn( op );
1057         return rs->sr_err;
1058 }
1059
1060 static int ldif_back_delete(Operation *op, SlapReply *rs) {
1061         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1062         struct berval path;
1063         int res = 0;
1064
1065         if ( BER_BVISEMPTY( &op->o_csn )) {
1066                 struct berval csn;
1067                 char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
1068
1069                 csn.bv_val = csnbuf;
1070                 csn.bv_len = sizeof( csnbuf );
1071                 slap_get_csn( op, &csn, 1 );
1072         }
1073
1074         ldap_pvt_thread_rdwr_wlock(&li->li_rdwr);
1075
1076         dn2path( op->o_bd, &op->o_req_ndn, &path );
1077         path.bv_val[path.bv_len - STRLENOF(LDIF)] = '\0';
1078         res = rmdir(path.bv_val);
1079         path.bv_val[path.bv_len - STRLENOF(LDIF)] = LDIF_FILETYPE_SEP;
1080         rs->sr_err = LDAP_SUCCESS;
1081         if ( res ) {
1082                 switch ( errno ) {
1083                 case ENOTEMPTY:
1084                         rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
1085                         break;
1086
1087                 case ENOENT:
1088                         /* is leaf, go on */
1089                         res = 0;
1090                         break;
1091
1092                 default:
1093                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1094                         break;
1095                 }
1096         }
1097
1098         if ( !res ) {
1099                 res = unlink(path.bv_val);
1100                 if ( res == -1 ) {
1101                         switch ( errno ) {
1102                         case ENOENT:
1103                                 rs->sr_err = LDAP_NO_SUCH_OBJECT;
1104                                 break;
1105
1106                         default:
1107                                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
1108                                 break;
1109                         }
1110                 }
1111         }
1112
1113         SLAP_FREE(path.bv_val);
1114         ldap_pvt_thread_rdwr_wunlock(&li->li_rdwr);
1115         send_ldap_result(op, rs);
1116         slap_graduate_commit_csn( op );
1117         return rs->sr_err;
1118 }
1119
1120
1121 static int
1122 ldif_move_entry(
1123         Operation *op,
1124         Entry *entry,
1125         struct berval *oldpath )
1126 {
1127         int res;
1128         int exists_res;
1129         struct berval newpath;
1130
1131         dn2path( op->o_bd, &entry->e_nname, &newpath );
1132
1133         if((entry == NULL || oldpath->bv_val == NULL) || newpath.bv_val == NULL) {
1134                 /* some object doesn't exist */
1135                 res = LDAP_NO_SUCH_OBJECT;
1136         }
1137         else { /* do the modrdn */
1138                 exists_res = open(newpath.bv_val, O_RDONLY);
1139                 if(exists_res == -1 && errno == ENOENT) {
1140                         ldap_pvt_thread_mutex_lock( &entry2str_mutex );
1141                         res = spew_entry(entry, &newpath, 0, NULL);
1142                         if(res != -1) {
1143                                 /* if this fails we should log something bad */
1144                                 res = unlink( oldpath->bv_val );
1145                                 oldpath->bv_val[oldpath->bv_len - STRLENOF(".ldif")] = '\0';
1146                                 newpath.bv_val[newpath.bv_len - STRLENOF(".ldif")] = '\0';
1147                                 res = rename( oldpath->bv_val, newpath.bv_val );
1148                                 res = LDAP_SUCCESS;
1149                         }
1150                         else {
1151                                 if(errno == ENOENT)
1152                                         res = LDAP_NO_SUCH_OBJECT;
1153                                 else
1154                                         res = LDAP_UNWILLING_TO_PERFORM;
1155                                 unlink(newpath.bv_val); /* in case file was created */
1156                         }
1157                         ldap_pvt_thread_mutex_unlock( &entry2str_mutex );
1158                 }
1159                 else if(exists_res) {
1160                         int close_res = close(exists_res);
1161                         res = LDAP_ALREADY_EXISTS;
1162                         if(close_res == -1) {
1163                         /* log heinous error */
1164                         }
1165                 }
1166                 else {
1167                         res = LDAP_UNWILLING_TO_PERFORM;
1168                 }
1169         }
1170
1171         if(newpath.bv_val != NULL)
1172                 SLAP_FREE(newpath.bv_val);
1173         return res;
1174 }
1175
1176 static int
1177 ldif_back_modrdn(Operation *op, SlapReply *rs)
1178 {
1179         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1180         struct berval new_dn = BER_BVNULL, new_ndn = BER_BVNULL;
1181         struct berval p_dn, old_path;
1182         Entry *entry;
1183         int rc;
1184
1185         slap_mods_opattrs( op, &op->orr_modlist, 1 );
1186
1187         ldap_pvt_thread_rdwr_wlock( &li->li_rdwr );
1188
1189         rc = get_entry( op, &entry, &old_path );
1190         if ( rc == LDAP_SUCCESS ) {
1191                 /* build new dn, and new ndn for the entry */
1192                 if ( op->oq_modrdn.rs_newSup != NULL ) {
1193                         struct berval   op_dn = op->o_req_dn,
1194                                         op_ndn = op->o_req_ndn;
1195                         Entry           *np;
1196
1197                         /* new superior */
1198                         p_dn = *op->oq_modrdn.rs_newSup;
1199                         op->o_req_dn = *op->oq_modrdn.rs_newSup;
1200                         op->o_req_ndn = *op->oq_modrdn.rs_nnewSup;
1201                         rc = get_entry( op, &np, NULL );
1202                         op->o_req_dn = op_dn;
1203                         op->o_req_ndn = op_ndn;
1204                         if ( rc != LDAP_SUCCESS ) {
1205                                 goto no_such_object;
1206                         }
1207                         entry_free( np );
1208                 } else {
1209                         dnParent( &entry->e_name, &p_dn );
1210                 }
1211                 build_new_dn( &new_dn, &p_dn, &op->oq_modrdn.rs_newrdn, NULL );
1212                 dnNormalize( 0, NULL, NULL, &new_dn, &new_ndn, NULL );
1213                 ber_memfree_x( entry->e_name.bv_val, NULL );
1214                 ber_memfree_x( entry->e_nname.bv_val, NULL );
1215                 entry->e_name = new_dn;
1216                 entry->e_nname = new_ndn;
1217
1218                 /* perform the modifications */
1219                 rc = apply_modify_to_entry( entry, op->orr_modlist, op, rs );
1220                 if ( rc == LDAP_SUCCESS )
1221                         rc = ldif_move_entry( op, entry, &old_path );
1222
1223 no_such_object:;
1224                 entry_free( entry );
1225                 SLAP_FREE( old_path.bv_val );
1226         }
1227
1228         rs->sr_text = "";
1229         ldap_pvt_thread_rdwr_wunlock( &li->li_rdwr );
1230         rs->sr_err = rc;
1231         send_ldap_result( op, rs );
1232         slap_graduate_commit_csn( op );
1233         return rs->sr_err;
1234 }
1235
1236
1237 /* Return LDAP_SUCCESS IFF we retrieve the specified entry. */
1238 static int
1239 ldif_back_entry_get(
1240         Operation *op,
1241         struct berval *ndn,
1242         ObjectClass *oc,
1243         AttributeDescription *at,
1244         int rw,
1245         Entry **e )
1246 {
1247         struct ldif_info *li = (struct ldif_info *) op->o_bd->be_private;
1248         struct berval op_dn = op->o_req_dn, op_ndn = op->o_req_ndn;
1249         int rc;
1250
1251         assert( ndn != NULL );
1252         assert( !BER_BVISNULL( ndn ) );
1253
1254         ldap_pvt_thread_rdwr_rlock( &li->li_rdwr );
1255         op->o_req_dn = *ndn;
1256         op->o_req_ndn = *ndn;
1257         rc = get_entry( op, e, NULL );
1258         op->o_req_dn = op_dn;
1259         op->o_req_ndn = op_ndn;
1260         ldap_pvt_thread_rdwr_runlock( &li->li_rdwr );
1261
1262         if ( rc == LDAP_SUCCESS && oc && !is_entry_objectclass_or_sub( *e, oc ) ) {
1263                 rc = LDAP_NO_SUCH_ATTRIBUTE;
1264                 entry_free( *e );
1265                 *e = NULL;
1266         }
1267
1268         return rc;
1269 }
1270
1271
1272 /* Slap tools */
1273
1274 static int ldif_tool_entry_open(BackendDB *be, int mode) {
1275         struct ldif_info *li = (struct ldif_info *) be->be_private;
1276         li->li_tool_current = 0;
1277         return 0;
1278 }
1279
1280 static int ldif_tool_entry_close(BackendDB * be) {
1281         struct ldif_info *li = (struct ldif_info *) be->be_private;
1282
1283         SLAP_FREE(li->li_tool_cookie.entries);
1284         return 0;
1285 }
1286
1287 static ID ldif_tool_entry_next(BackendDB *be)
1288 {
1289         struct ldif_info *li = (struct ldif_info *) be->be_private;
1290         if(li->li_tool_current >= li->li_tool_cookie.eind)
1291                 return NOID;
1292         else
1293                 return ++li->li_tool_current;
1294 }
1295
1296 static ID
1297 ldif_tool_entry_first(BackendDB *be)
1298 {
1299         struct ldif_info *li = (struct ldif_info *) be->be_private;
1300
1301         if(li->li_tool_cookie.entries == NULL) {
1302                 Operation op = {0};
1303
1304                 op.o_bd = be;
1305                 op.o_req_dn = *be->be_suffix;
1306                 op.o_req_ndn = *be->be_nsuffix;
1307                 op.ors_scope = LDAP_SCOPE_SUBTREE;
1308                 li->li_tool_cookie.op = &op;
1309                 (void)enum_tree( &li->li_tool_cookie );
1310                 li->li_tool_cookie.op = NULL;
1311         }
1312         return ldif_tool_entry_next( be );
1313 }
1314
1315 static Entry * ldif_tool_entry_get(BackendDB * be, ID id) {
1316         struct ldif_info *li = (struct ldif_info *) be->be_private;
1317         Entry * e;
1318
1319         if(id > li->li_tool_cookie.eind || id < 1)
1320                 return NULL;
1321         else {
1322                 e = li->li_tool_cookie.entries[id - 1];
1323                 li->li_tool_cookie.entries[id - 1] = NULL;
1324                 return e;
1325         }
1326 }
1327
1328 static ID ldif_tool_entry_put(BackendDB * be, Entry * e, struct berval *text) {
1329         struct berval leaf_path = BER_BVNULL;
1330         struct stat stats;
1331         int statres;
1332         int res = LDAP_SUCCESS;
1333
1334         dn2path( be, &e->e_nname, &leaf_path );
1335
1336         if(leaf_path.bv_val != NULL) {
1337                 struct berval base = BER_BVNULL;
1338                 /* build path to container, and path to ldif of container */
1339                 get_parent_path(&leaf_path, &base);
1340
1341                 statres = stat(base.bv_val, &stats); /* check if container exists */
1342                 if(statres == -1 && errno == ENOENT) { /* container missing */
1343                         base.bv_val[base.bv_len] = LDIF_FILETYPE_SEP;
1344                         statres = stat(base.bv_val, &stats); /* check for leaf node */
1345                         base.bv_val[base.bv_len] = '\0';
1346                         if(statres == -1 && errno == ENOENT) {
1347                                 res = LDAP_NO_SUCH_OBJECT; /* parent doesn't exist */
1348                         }
1349                         else if(statres != -1) { /* create parent */
1350                                 int mkdirres = mkdir(base.bv_val, 0750);
1351                                 if(mkdirres == -1) {
1352                                         res = LDAP_UNWILLING_TO_PERFORM;
1353                                 }
1354                         }
1355                         else
1356                                 res = LDAP_UNWILLING_TO_PERFORM;
1357                 }/* container was possibly created, move on to add the entry */
1358                 if(res == LDAP_SUCCESS) {
1359                         statres = stat(leaf_path.bv_val, &stats);
1360                         if(statres == -1 && errno == ENOENT) {
1361                                 res = spew_entry(e, &leaf_path, 0, NULL);
1362                         }
1363                         else /* it already exists */
1364                                 res = LDAP_ALREADY_EXISTS;
1365                 }
1366                 SLAP_FREE(base.bv_val);
1367                 SLAP_FREE(leaf_path.bv_val);
1368         }
1369
1370         if(res == LDAP_SUCCESS) {
1371                 return 1;
1372         }
1373         else
1374                 return NOID;
1375 }
1376
1377
1378 /* Setup */
1379
1380 static int
1381 ldif_back_db_init( BackendDB *be, ConfigReply *cr )
1382 {
1383         struct ldif_info *li;
1384
1385         li = ch_calloc( 1, sizeof(struct ldif_info) );
1386         be->be_private = li;
1387         be->be_cf_ocs = ldifocs;
1388         ldap_pvt_thread_rdwr_init(&li->li_rdwr);
1389         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_ONE_SUFFIX;
1390         return 0;
1391 }
1392
1393 static int
1394 ldif_back_db_destroy( Backend *be, ConfigReply *cr )
1395 {
1396         struct ldif_info *li = be->be_private;
1397
1398         ch_free(li->li_base_path.bv_val);
1399         ldap_pvt_thread_rdwr_destroy(&li->li_rdwr);
1400         free( be->be_private );
1401         return 0;
1402 }
1403
1404 static int
1405 ldif_back_db_open( Backend *be, ConfigReply *cr)
1406 {
1407         struct ldif_info *li = (struct ldif_info *) be->be_private;
1408         if( BER_BVISEMPTY(&li->li_base_path)) {/* missing base path */
1409                 Debug( LDAP_DEBUG_ANY, "missing base path for back-ldif\n", 0, 0, 0);
1410                 return 1;
1411         }
1412         return 0;
1413 }
1414
1415 int
1416 ldif_back_initialize(
1417                            BackendInfo  *bi
1418                            )
1419 {
1420         static char *controls[] = {
1421                 LDAP_CONTROL_MANAGEDSAIT,
1422                 NULL
1423         };
1424         int rc;
1425
1426         bi->bi_flags |=
1427                 SLAP_BFLAG_INCREMENT |
1428                 SLAP_BFLAG_REFERRALS;
1429
1430         bi->bi_controls = controls;
1431
1432         bi->bi_open = 0;
1433         bi->bi_close = 0;
1434         bi->bi_config = 0;
1435         bi->bi_destroy = 0;
1436
1437         bi->bi_db_init = ldif_back_db_init;
1438         bi->bi_db_config = config_generic_wrapper;
1439         bi->bi_db_open = ldif_back_db_open;
1440         bi->bi_db_close = 0;
1441         bi->bi_db_destroy = ldif_back_db_destroy;
1442
1443         bi->bi_op_bind = ldif_back_bind;
1444         bi->bi_op_unbind = 0;
1445         bi->bi_op_search = ldif_back_search;
1446         bi->bi_op_compare = 0;
1447         bi->bi_op_modify = ldif_back_modify;
1448         bi->bi_op_modrdn = ldif_back_modrdn;
1449         bi->bi_op_add = ldif_back_add;
1450         bi->bi_op_delete = ldif_back_delete;
1451         bi->bi_op_abandon = 0;
1452
1453         bi->bi_extended = 0;
1454
1455         bi->bi_chk_referrals = ldif_back_referrals;
1456
1457         bi->bi_connection_init = 0;
1458         bi->bi_connection_destroy = 0;
1459
1460         bi->bi_entry_get_rw = ldif_back_entry_get;
1461
1462 #if 0   /* NOTE: uncomment to completely disable access control */
1463         bi->bi_access_allowed = slap_access_always_allowed;
1464 #endif
1465
1466         bi->bi_tool_entry_open = ldif_tool_entry_open;
1467         bi->bi_tool_entry_close = ldif_tool_entry_close;
1468         bi->bi_tool_entry_first = ldif_tool_entry_first;
1469         bi->bi_tool_entry_next = ldif_tool_entry_next;
1470         bi->bi_tool_entry_get = ldif_tool_entry_get;
1471         bi->bi_tool_entry_put = ldif_tool_entry_put;
1472         bi->bi_tool_entry_reindex = 0;
1473         bi->bi_tool_sync = 0;
1474
1475         bi->bi_tool_dn2id_get = 0;
1476         bi->bi_tool_entry_modify = 0;
1477
1478         bi->bi_cf_ocs = ldifocs;
1479
1480         rc = config_register_schema( ldifcfg, ldifocs );
1481         if ( rc ) return rc;
1482         return 0;
1483 }