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

   1 /* tools.c - tools for slap tools */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2011-2016 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
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20 #include <ac/string.h>
  21 #include <ac/errno.h>
  22
  23 #define AVL_INTERNAL
  24 #include "back-mdb.h"
  25 #include "idl.h"
  26
  27 #ifdef MDB_TOOL_IDL_CACHING
  28 static int mdb_tool_idl_flush( BackendDB *be, MDB_txn *txn );
  29
  30 #define IDBLOCK 1024
  31
  32 typedef struct mdb_tool_idl_cache_entry {
  33         struct mdb_tool_idl_cache_entry *next;
  34         ID ids[IDBLOCK];
  35 } mdb_tool_idl_cache_entry;
  36
  37 typedef struct mdb_tool_idl_cache {
  38         struct berval kstr;
  39         mdb_tool_idl_cache_entry *head, *tail;
  40         ID first, last;
  41         int count;
  42         short offset;
  43         short flags;
  44 } mdb_tool_idl_cache;
  45 #define WAS_FOUND       0x01
  46 #define WAS_RANGE       0x02
  47
  48 #define MDB_TOOL_IDL_FLUSH(be, txn)     mdb_tool_idl_flush(be, txn)
  49 #else
  50 #define MDB_TOOL_IDL_FLUSH(be, txn)
  51 #endif /* MDB_TOOL_IDL_CACHING */
  52
  53 MDB_txn *mdb_tool_txn = NULL;
  54
  55 static MDB_txn *txi = NULL;
  56 static MDB_cursor *cursor = NULL, *idcursor = NULL;
  57 static MDB_cursor *mcp = NULL, *mcd = NULL;
  58 static MDB_val key, data;
  59 static ID previd = NOID;
  60
  61 typedef struct dn_id {
  62         ID id;
  63         struct berval dn;
  64 } dn_id;
  65
  66 #define HOLE_SIZE       4096
  67 static dn_id hbuf[HOLE_SIZE], *holes = hbuf;
  68 static unsigned nhmax = HOLE_SIZE;
  69 static unsigned nholes;
  70
  71 static struct berval    *tool_base;
  72 static int              tool_scope;
  73 static Filter           *tool_filter;
  74 static Entry            *tool_next_entry;
  75
  76 static ID mdb_tool_ix_id;
  77 static Operation *mdb_tool_ix_op;
  78 static MDB_txn *mdb_tool_ix_txn;
  79 static int mdb_tool_index_tcount, mdb_tool_threads;
  80 static IndexRec *mdb_tool_index_rec;
  81 static struct mdb_info *mdb_tool_info;
  82 static ldap_pvt_thread_mutex_t mdb_tool_index_mutex;
  83 static ldap_pvt_thread_cond_t mdb_tool_index_cond_main;
  84 static ldap_pvt_thread_cond_t mdb_tool_index_cond_work;
  85 static void * mdb_tool_index_task( void *ctx, void *ptr );
  86
  87 static int      mdb_writes, mdb_writes_per_commit;
  88
  89 /* Number of ops per commit in Quick mode.
  90  * Batching speeds writes overall, but too large a
  91  * batch will fail with MDB_TXN_FULL.
  92  */
  93 #ifndef MDB_WRITES_PER_COMMIT
  94 #define MDB_WRITES_PER_COMMIT   500
  95 #endif
  96
  97 static int
  98 mdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep );
  99
 100 int mdb_tool_entry_open(
 101         BackendDB *be, int mode )
 102 {
 103         /* In Quick mode, commit once per 500 entries */
 104         mdb_writes = 0;
 105         if ( slapMode & SLAP_TOOL_QUICK )
 106                 mdb_writes_per_commit = MDB_WRITES_PER_COMMIT;
 107         else
 108                 mdb_writes_per_commit = 1;
 109
 110         /* Set up for threaded slapindex */
 111         if (( slapMode & (SLAP_TOOL_QUICK|SLAP_TOOL_READONLY)) == SLAP_TOOL_QUICK ) {
 112                 if ( !mdb_tool_info ) {
 113                         struct mdb_info *mdb = (struct mdb_info *) be->be_private;
 114                         ldap_pvt_thread_mutex_init( &mdb_tool_index_mutex );
 115                         ldap_pvt_thread_cond_init( &mdb_tool_index_cond_main );
 116                         ldap_pvt_thread_cond_init( &mdb_tool_index_cond_work );
 117                         if ( mdb->mi_nattrs ) {
 118                                 int i;
 119 #if 0                   /* threaded indexing has no performance advantage */
 120                                 mdb_tool_threads = slap_tool_thread_max - 1;
 121 #endif
 122                                 if ( mdb_tool_threads > 1 ) {
 123                                         mdb_tool_index_rec = ch_calloc( mdb->mi_nattrs, sizeof( IndexRec ));
 124                                         mdb_tool_index_tcount = mdb_tool_threads - 1;
 125                                         for (i=1; i<mdb_tool_threads; i++) {
 126                                                 int *ptr = ch_malloc( sizeof( int ));
 127                                                 *ptr = i;
 128                                                 ldap_pvt_thread_pool_submit( &connection_pool,
 129                                                         mdb_tool_index_task, ptr );
 130                                         }
 131                                         mdb_tool_info = mdb;
 132                                 }
 133                         }
 134                 }
 135         }
 136
 137         return 0;
 138 }
 139
 140 int mdb_tool_entry_close(
 141         BackendDB *be )
 142 {
 143         if ( mdb_tool_info ) {
 144                 slapd_shutdown = 1;
 145                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 146
 147                 /* There might still be some threads starting */
 148                 while ( mdb_tool_index_tcount > 0 ) {
 149                         ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 150                                         &mdb_tool_index_mutex );
 151                 }
 152
 153                 mdb_tool_index_tcount = mdb_tool_threads - 1;
 154                 ldap_pvt_thread_cond_broadcast( &mdb_tool_index_cond_work );
 155
 156                 /* Make sure all threads are stopped */
 157                 while ( mdb_tool_index_tcount > 0 ) {
 158                         ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 159                                 &mdb_tool_index_mutex );
 160                 }
 161                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 162
 163                 mdb_tool_info = NULL;
 164                 slapd_shutdown = 0;
 165                 ch_free( mdb_tool_index_rec );
 166                 mdb_tool_index_tcount = mdb_tool_threads - 1;
 167         }
 168
 169         if( idcursor ) {
 170                 mdb_cursor_close( idcursor );
 171                 idcursor = NULL;
 172         }
 173         if( cursor ) {
 174                 mdb_cursor_close( cursor );
 175                 cursor = NULL;
 176         }
 177         if( mdb_tool_txn ) {
 178                 int rc;
 179                 MDB_TOOL_IDL_FLUSH( be, mdb_tool_txn );
 180                 if (( rc = mdb_txn_commit( mdb_tool_txn ))) {
 181                         Debug( LDAP_DEBUG_ANY,
 182                                 LDAP_XSTRING(mdb_tool_entry_close) ": database %s: "
 183                                 "txn_commit failed: %s (%d)\n",
 184                                 be->be_suffix[0].bv_val, mdb_strerror(rc), rc );
 185                         return -1;
 186                 }
 187                 mdb_tool_txn = NULL;
 188         }
 189
 190         if( nholes ) {
 191                 unsigned i;
 192                 fprintf( stderr, "Error, entries missing!\n");
 193                 for (i=0; i<nholes; i++) {
 194                         fprintf(stderr, "  entry %ld: %s\n",
 195                                 holes[i].id, holes[i].dn.bv_val);
 196                 }
 197                 nholes = 0;
 198                 return -1;
 199         }
 200
 201         return 0;
 202 }
 203
 204 ID
 205 mdb_tool_entry_first_x(
 206         BackendDB *be,
 207         struct berval *base,
 208         int scope,
 209         Filter *f )
 210 {
 211         tool_base = base;
 212         tool_scope = scope;
 213         tool_filter = f;
 214
 215         return mdb_tool_entry_next( be );
 216 }
 217
 218 ID mdb_tool_entry_next(
 219         BackendDB *be )
 220 {
 221         int rc;
 222         ID id;
 223         struct mdb_info *mdb;
 224
 225         assert( be != NULL );
 226         assert( slapMode & SLAP_TOOL_MODE );
 227
 228         mdb = (struct mdb_info *) be->be_private;
 229         assert( mdb != NULL );
 230
 231         if ( !mdb_tool_txn ) {
 232                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, MDB_RDONLY, &mdb_tool_txn );
 233                 if ( rc )
 234                         return NOID;
 235                 rc = mdb_cursor_open( mdb_tool_txn, mdb->mi_id2entry, &cursor );
 236                 if ( rc ) {
 237                         mdb_txn_abort( mdb_tool_txn );
 238                         return NOID;
 239                 }
 240         }
 241
 242 next:;
 243         rc = mdb_cursor_get( cursor, &key, &data, MDB_NEXT );
 244
 245         if( rc ) {
 246                 return NOID;
 247         }
 248
 249         previd = *(ID *)key.mv_data;
 250         id = previd;
 251
 252         if ( !data.mv_size )
 253                 goto next;
 254
 255         if ( tool_filter || tool_base ) {
 256                 static Operation op = {0};
 257                 static Opheader ohdr = {0};
 258
 259                 op.o_hdr = &ohdr;
 260                 op.o_bd = be;
 261                 op.o_tmpmemctx = NULL;
 262                 op.o_tmpmfuncs = &ch_mfuncs;
 263
 264                 if ( tool_next_entry ) {
 265                         mdb_entry_release( &op, tool_next_entry, 0 );
 266                         tool_next_entry = NULL;
 267                 }
 268
 269                 rc = mdb_tool_entry_get_int( be, id, &tool_next_entry );
 270                 if ( rc == LDAP_NO_SUCH_OBJECT ) {
 271                         goto next;
 272                 }
 273
 274                 assert( tool_next_entry != NULL );
 275
 276                 if ( tool_filter && test_filter( NULL, tool_next_entry, tool_filter ) != LDAP_COMPARE_TRUE )
 277                 {
 278                         mdb_entry_release( &op, tool_next_entry, 0 );
 279                         tool_next_entry = NULL;
 280                         goto next;
 281                 }
 282         }
 283
 284         return id;
 285 }
 286
 287 ID mdb_tool_dn2id_get(
 288         Backend *be,
 289         struct berval *dn
 290 )
 291 {
 292         struct mdb_info *mdb;
 293         Operation op = {0};
 294         Opheader ohdr = {0};
 295         ID id;
 296         int rc;
 297
 298         if ( BER_BVISEMPTY(dn) )
 299                 return 0;
 300
 301         mdb = (struct mdb_info *) be->be_private;
 302
 303         if ( !mdb_tool_txn ) {
 304                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, (slapMode & SLAP_TOOL_READONLY) != 0 ?
 305                         MDB_RDONLY : 0, &mdb_tool_txn );
 306                 if ( rc )
 307                         return NOID;
 308         }
 309
 310         op.o_hdr = &ohdr;
 311         op.o_bd = be;
 312         op.o_tmpmemctx = NULL;
 313         op.o_tmpmfuncs = &ch_mfuncs;
 314
 315         rc = mdb_dn2id( &op, mdb_tool_txn, NULL, dn, &id, NULL, NULL, NULL );
 316         if ( rc == MDB_NOTFOUND )
 317                 return NOID;
 318
 319         return id;
 320 }
 321
 322 static int
 323 mdb_tool_entry_get_int( BackendDB *be, ID id, Entry **ep )
 324 {
 325         Operation op = {0};
 326         Opheader ohdr = {0};
 327
 328         Entry *e = NULL;
 329         struct berval dn = BER_BVNULL, ndn = BER_BVNULL;
 330         int rc;
 331
 332         assert( be != NULL );
 333         assert( slapMode & SLAP_TOOL_MODE );
 334
 335         if ( ( tool_filter || tool_base ) && id == previd && tool_next_entry != NULL ) {
 336                 *ep = tool_next_entry;
 337                 tool_next_entry = NULL;
 338                 return LDAP_SUCCESS;
 339         }
 340
 341         if ( id != previd ) {
 342                 key.mv_size = sizeof(ID);
 343                 key.mv_data = &id;
 344                 rc = mdb_cursor_get( cursor, &key, &data, MDB_SET );
 345                 if ( rc ) {
 346                         rc = LDAP_OTHER;
 347                         goto done;
 348                 }
 349         }
 350         if ( !data.mv_size ) {
 351                 rc = LDAP_NO_SUCH_OBJECT;
 352                 goto done;
 353         }
 354
 355         op.o_hdr = &ohdr;
 356         op.o_bd = be;
 357         op.o_tmpmemctx = NULL;
 358         op.o_tmpmfuncs = &ch_mfuncs;
 359         if ( slapMode & SLAP_TOOL_READONLY ) {
 360                 rc = mdb_id2name( &op, mdb_tool_txn, &idcursor, id, &dn, &ndn );
 361                 if ( rc  ) {
 362                         rc = LDAP_OTHER;
 363                         goto done;
 364                 }
 365                 if ( tool_base != NULL ) {
 366                         if ( !dnIsSuffixScope( &ndn, tool_base, tool_scope ) ) {
 367                                 ch_free( dn.bv_val );
 368                                 ch_free( ndn.bv_val );
 369                                 rc = LDAP_NO_SUCH_OBJECT;
 370                                 goto done;
 371                         }
 372                 }
 373         }
 374         rc = mdb_entry_decode( &op, mdb_tool_txn, &data, &e );
 375         e->e_id = id;
 376         if ( !BER_BVISNULL( &dn )) {
 377                 e->e_name = dn;
 378                 e->e_nname = ndn;
 379         } else {
 380                 e->e_name.bv_val = NULL;
 381                 e->e_nname.bv_val = NULL;
 382         }
 383
 384 done:
 385         if ( e != NULL ) {
 386                 *ep = e;
 387         }
 388
 389         return rc;
 390 }
 391
 392 Entry*
 393 mdb_tool_entry_get( BackendDB *be, ID id )
 394 {
 395         Entry *e = NULL;
 396         int rc;
 397
 398         if ( !mdb_tool_txn ) {
 399                 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
 400                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL,
 401                         (slapMode & SLAP_TOOL_READONLY) ? MDB_RDONLY : 0, &mdb_tool_txn );
 402                 if ( rc )
 403                         return NULL;
 404         }
 405         if ( !cursor ) {
 406                 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
 407                 rc = mdb_cursor_open( mdb_tool_txn, mdb->mi_id2entry, &cursor );
 408                 if ( rc ) {
 409                         mdb_txn_abort( mdb_tool_txn );
 410                         mdb_tool_txn = NULL;
 411                         return NULL;
 412                 }
 413         }
 414         (void)mdb_tool_entry_get_int( be, id, &e );
 415         return e;
 416 }
 417
 418 static int mdb_tool_next_id(
 419         Operation *op,
 420         MDB_txn *tid,
 421         Entry *e,
 422         struct berval *text,
 423         int hole )
 424 {
 425         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
 426         struct berval dn = e->e_name;
 427         struct berval ndn = e->e_nname;
 428         struct berval pdn, npdn, nmatched;
 429         ID id, pid = 0;
 430         int rc;
 431
 432         if (ndn.bv_len == 0) {
 433                 e->e_id = 0;
 434                 return 0;
 435         }
 436
 437         rc = mdb_dn2id( op, tid, mcp, &ndn, &id, NULL, NULL, &nmatched );
 438         if ( rc == MDB_NOTFOUND ) {
 439                 if ( !be_issuffix( op->o_bd, &ndn ) ) {
 440                         ID eid = e->e_id;
 441                         dnParent( &ndn, &npdn );
 442                         if ( nmatched.bv_len != npdn.bv_len ) {
 443                                 dnParent( &dn, &pdn );
 444                                 e->e_name = pdn;
 445                                 e->e_nname = npdn;
 446                                 rc = mdb_tool_next_id( op, tid, e, text, 1 );
 447                                 e->e_name = dn;
 448                                 e->e_nname = ndn;
 449                                 if ( rc ) {
 450                                         return rc;
 451                                 }
 452                                 /* If parent didn't exist, it was created just now
 453                                  * and its ID is now in e->e_id. Make sure the current
 454                                  * entry gets added under the new parent ID.
 455                                  */
 456                                 if ( eid != e->e_id ) {
 457                                         pid = e->e_id;
 458                                 }
 459                         } else {
 460                                 pid = id;
 461                         }
 462                 }
 463                 rc = mdb_next_id( op->o_bd, idcursor, &e->e_id );
 464                 if ( rc ) {
 465                         snprintf( text->bv_val, text->bv_len,
 466                                 "next_id failed: %s (%d)",
 467                                 mdb_strerror(rc), rc );
 468                 Debug( LDAP_DEBUG_ANY,
 469                         "=> mdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 470                         return rc;
 471                 }
 472                 rc = mdb_dn2id_add( op, mcp, mcd, pid, 1, 1, e );
 473                 if ( rc ) {
 474                         snprintf( text->bv_val, text->bv_len,
 475                                 "dn2id_add failed: %s (%d)",
 476                                 mdb_strerror(rc), rc );
 477                         Debug( LDAP_DEBUG_ANY,
 478                                 "=> mdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 479                 } else if ( hole ) {
 480                         MDB_val key, data;
 481                         if ( nholes == nhmax - 1 ) {
 482                                 if ( holes == hbuf ) {
 483                                         holes = ch_malloc( nhmax * sizeof(dn_id) * 2 );
 484                                         AC_MEMCPY( holes, hbuf, sizeof(hbuf) );
 485                                 } else {
 486                                         holes = ch_realloc( holes, nhmax * sizeof(dn_id) * 2 );
 487                                 }
 488                                 nhmax *= 2;
 489                         }
 490                         ber_dupbv( &holes[nholes].dn, &ndn );
 491                         holes[nholes++].id = e->e_id;
 492                         key.mv_size = sizeof(ID);
 493                         key.mv_data = &e->e_id;
 494                         data.mv_size = 0;
 495                         data.mv_data = NULL;
 496                         rc = mdb_cursor_put( idcursor, &key, &data, MDB_NOOVERWRITE );
 497                         if ( rc == MDB_KEYEXIST )
 498                                 rc = 0;
 499                         if ( rc ) {
 500                                 snprintf( text->bv_val, text->bv_len,
 501                                         "dummy id2entry add failed: %s (%d)",
 502                                         mdb_strerror(rc), rc );
 503                                 Debug( LDAP_DEBUG_ANY,
 504                                         "=> mdb_tool_next_id: %s\n", text->bv_val, 0, 0 );
 505                         }
 506                 }
 507         } else if ( !hole ) {
 508                 unsigned i, j;
 509
 510                 e->e_id = id;
 511
 512                 for ( i=0; i<nholes; i++) {
 513                         if ( holes[i].id == e->e_id ) {
 514                                 free(holes[i].dn.bv_val);
 515                                 for (j=i;j<nholes;j++) holes[j] = holes[j+1];
 516                                 holes[j].id = 0;
 517                                 nholes--;
 518                                 break;
 519                         } else if ( holes[i].id > e->e_id ) {
 520                                 break;
 521                         }
 522                 }
 523         }
 524         return rc;
 525 }
 526
 527 static int
 528 mdb_tool_index_add(
 529         Operation *op,
 530         MDB_txn *txn,
 531         Entry *e )
 532 {
 533         struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
 534
 535         if ( !mdb->mi_nattrs )
 536                 return 0;
 537
 538         if ( mdb_tool_threads > 1 ) {
 539                 IndexRec *ir;
 540                 int i, rc;
 541                 Attribute *a;
 542
 543                 ir = mdb_tool_index_rec;
 544                 for (i=0; i<mdb->mi_nattrs; i++)
 545                         ir[i].ir_attrs = NULL;
 546
 547                 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
 548                         rc = mdb_index_recset( mdb, a, a->a_desc->ad_type,
 549                                 &a->a_desc->ad_tags, ir );
 550                         if ( rc )
 551                                 return rc;
 552                 }
 553                 for (i=0; i<mdb->mi_nattrs; i++) {
 554                         if ( !ir[i].ir_ai )
 555                                 break;
 556                         rc = mdb_cursor_open( txn, ir[i].ir_ai->ai_dbi,
 557                                  &ir[i].ir_ai->ai_cursor );
 558                         if ( rc )
 559                                 return rc;
 560                 }
 561                 mdb_tool_ix_id = e->e_id;
 562                 mdb_tool_ix_op = op;
 563                 mdb_tool_ix_txn = txn;
 564                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 565                 /* Wait for all threads to be ready */
 566                 while ( mdb_tool_index_tcount ) {
 567                         ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 568                                 &mdb_tool_index_mutex );
 569                 }
 570
 571                 for ( i=1; i<mdb_tool_threads; i++ )
 572                         mdb_tool_index_rec[i].ir_i = LDAP_BUSY;
 573                 mdb_tool_index_tcount = mdb_tool_threads - 1;
 574                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 575                 ldap_pvt_thread_cond_broadcast( &mdb_tool_index_cond_work );
 576
 577                 rc = mdb_index_recrun( op, txn, mdb, ir, e->e_id, 0 );
 578                 if ( rc )
 579                         return rc;
 580                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
 581                 for ( i=1; i<mdb_tool_threads; i++ ) {
 582                         if ( mdb_tool_index_rec[i].ir_i == LDAP_BUSY ) {
 583                                 ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_main,
 584                                         &mdb_tool_index_mutex );
 585                                 i--;
 586                                 continue;
 587                         }
 588                         if ( mdb_tool_index_rec[i].ir_i ) {
 589                                 rc = mdb_tool_index_rec[i].ir_i;
 590                                 break;
 591                         }
 592                 }
 593                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
 594                 return rc;
 595         } else
 596         {
 597                 return mdb_index_entry_add( op, txn, e );
 598         }
 599 }
 600
 601 ID mdb_tool_entry_put(
 602         BackendDB *be,
 603         Entry *e,
 604         struct berval *text )
 605 {
 606         int rc;
 607         struct mdb_info *mdb;
 608         Operation op = {0};
 609         Opheader ohdr = {0};
 610
 611         assert( be != NULL );
 612         assert( slapMode & SLAP_TOOL_MODE );
 613
 614         assert( text != NULL );
 615         assert( text->bv_val != NULL );
 616         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 617
 618         Debug( LDAP_DEBUG_TRACE, "=> " LDAP_XSTRING(mdb_tool_entry_put)
 619                 "( %ld, \"%s\" )\n", (long) e->e_id, e->e_dn, 0 );
 620
 621         mdb = (struct mdb_info *) be->be_private;
 622
 623         if ( !mdb_tool_txn ) {
 624                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, 0, &mdb_tool_txn );
 625                 if( rc != 0 ) {
 626                         snprintf( text->bv_val, text->bv_len,
 627                                 "txn_begin failed: %s (%d)",
 628                                 mdb_strerror(rc), rc );
 629                         Debug( LDAP_DEBUG_ANY,
 630                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 631                                  text->bv_val, 0, 0 );
 632                         return NOID;
 633                 }
 634                 rc = mdb_cursor_open( mdb_tool_txn, mdb->mi_id2entry, &idcursor );
 635                 if( rc != 0 ) {
 636                         snprintf( text->bv_val, text->bv_len,
 637                                 "cursor_open failed: %s (%d)",
 638                                 mdb_strerror(rc), rc );
 639                         Debug( LDAP_DEBUG_ANY,
 640                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 641                                  text->bv_val, 0, 0 );
 642                         return NOID;
 643                 }
 644                 if ( !mdb->mi_nextid ) {
 645                         ID dummy;
 646                         mdb_next_id( be, idcursor, &dummy );
 647                 }
 648                 rc = mdb_cursor_open( mdb_tool_txn, mdb->mi_dn2id, &mcp );
 649                 if( rc != 0 ) {
 650                         snprintf( text->bv_val, text->bv_len,
 651                                 "cursor_open failed: %s (%d)",
 652                                 mdb_strerror(rc), rc );
 653                         Debug( LDAP_DEBUG_ANY,
 654                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 655                                  text->bv_val, 0, 0 );
 656                         return NOID;
 657                 }
 658                 rc = mdb_cursor_open( mdb_tool_txn, mdb->mi_dn2id, &mcd );
 659                 if( rc != 0 ) {
 660                         snprintf( text->bv_val, text->bv_len,
 661                                 "cursor_open failed: %s (%d)",
 662                                 mdb_strerror(rc), rc );
 663                         Debug( LDAP_DEBUG_ANY,
 664                                 "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 665                                  text->bv_val, 0, 0 );
 666                         return NOID;
 667                 }
 668         }
 669
 670         op.o_hdr = &ohdr;
 671         op.o_bd = be;
 672         op.o_tmpmemctx = NULL;
 673         op.o_tmpmfuncs = &ch_mfuncs;
 674
 675         /* add dn2id indices */
 676         rc = mdb_tool_next_id( &op, mdb_tool_txn, e, text, 0 );
 677         if( rc != 0 ) {
 678                 goto done;
 679         }
 680
 681         rc = mdb_tool_index_add( &op, mdb_tool_txn, e );
 682         if( rc != 0 ) {
 683                 snprintf( text->bv_val, text->bv_len,
 684                                 "index_entry_add failed: err=%d", rc );
 685                 Debug( LDAP_DEBUG_ANY,
 686                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 687                         text->bv_val, 0, 0 );
 688                 goto done;
 689         }
 690
 691
 692         /* id2entry index */
 693         rc = mdb_id2entry_add( &op, mdb_tool_txn, idcursor, e );
 694         if( rc != 0 ) {
 695                 snprintf( text->bv_val, text->bv_len,
 696                                 "id2entry_add failed: err=%d", rc );
 697                 Debug( LDAP_DEBUG_ANY,
 698                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 699                         text->bv_val, 0, 0 );
 700                 goto done;
 701         }
 702
 703 done:
 704         if( rc == 0 ) {
 705                 mdb_writes++;
 706                 if ( mdb_writes >= mdb_writes_per_commit ) {
 707                         unsigned i;
 708                         MDB_TOOL_IDL_FLUSH( be, mdb_tool_txn );
 709                         rc = mdb_txn_commit( mdb_tool_txn );
 710                         for ( i=0; i<mdb->mi_nattrs; i++ )
 711                                 mdb->mi_attrs[i]->ai_cursor = NULL;
 712                         mdb_writes = 0;
 713                         mdb_tool_txn = NULL;
 714                         idcursor = NULL;
 715                         if( rc != 0 ) {
 716                                 mdb->mi_numads = 0;
 717                                 snprintf( text->bv_val, text->bv_len,
 718                                                 "txn_commit failed: %s (%d)",
 719                                                 mdb_strerror(rc), rc );
 720                                 Debug( LDAP_DEBUG_ANY,
 721                                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 722                                         text->bv_val, 0, 0 );
 723                                 e->e_id = NOID;
 724                         }
 725                 }
 726
 727         } else {
 728                 unsigned i;
 729                 mdb_txn_abort( mdb_tool_txn );
 730                 mdb_tool_txn = NULL;
 731                 idcursor = NULL;
 732                 for ( i=0; i<mdb->mi_nattrs; i++ )
 733                         mdb->mi_attrs[i]->ai_cursor = NULL;
 734                 mdb_writes = 0;
 735                 snprintf( text->bv_val, text->bv_len,
 736                         "txn_aborted! %s (%d)",
 737                         rc == LDAP_OTHER ? "Internal error" :
 738                         mdb_strerror(rc), rc );
 739                 Debug( LDAP_DEBUG_ANY,
 740                         "=> " LDAP_XSTRING(mdb_tool_entry_put) ": %s\n",
 741                         text->bv_val, 0, 0 );
 742                 e->e_id = NOID;
 743         }
 744
 745         return e->e_id;
 746 }
 747
 748 static int mdb_dn2id_upgrade( BackendDB *be );
 749
 750 int mdb_tool_entry_reindex(
 751         BackendDB *be,
 752         ID id,
 753         AttributeDescription **adv )
 754 {
 755         struct mdb_info *mi = (struct mdb_info *) be->be_private;
 756         int rc;
 757         Entry *e;
 758         Operation op = {0};
 759         Opheader ohdr = {0};
 760
 761         Debug( LDAP_DEBUG_ARGS,
 762                 "=> " LDAP_XSTRING(mdb_tool_entry_reindex) "( %ld )\n",
 763                 (long) id, 0, 0 );
 764         assert( tool_base == NULL );
 765         assert( tool_filter == NULL );
 766
 767         /* Special: do a dn2id upgrade */
 768         if ( adv && adv[0] == slap_schema.si_ad_entryDN ) {
 769                 /* short-circuit tool_entry_next() */
 770                 mdb_cursor_get( cursor, &key, &data, MDB_LAST );
 771                 return mdb_dn2id_upgrade( be );
 772         }
 773
 774         /* No indexes configured, nothing to do. Could return an
 775          * error here to shortcut things.
 776          */
 777         if (!mi->mi_attrs) {
 778                 return 0;
 779         }
 780
 781         /* Check for explicit list of attrs to index */
 782         if ( adv ) {
 783                 int i, j, n;
 784
 785                 if ( mi->mi_attrs[0]->ai_desc != adv[0] ) {
 786                         /* count */
 787                         for ( n = 0; adv[n]; n++ ) ;
 788
 789                         /* insertion sort */
 790                         for ( i = 0; i < n; i++ ) {
 791                                 AttributeDescription *ad = adv[i];
 792                                 for ( j = i-1; j>=0; j--) {
 793                                         if ( SLAP_PTRCMP( adv[j], ad ) <= 0 ) break;
 794                                         adv[j+1] = adv[j];
 795                                 }
 796                                 adv[j+1] = ad;
 797                         }
 798                 }
 799
 800                 for ( i = 0; adv[i]; i++ ) {
 801                         if ( mi->mi_attrs[i]->ai_desc != adv[i] ) {
 802                                 for ( j = i+1; j < mi->mi_nattrs; j++ ) {
 803                                         if ( mi->mi_attrs[j]->ai_desc == adv[i] ) {
 804                                                 AttrInfo *ai = mi->mi_attrs[i];
 805                                                 mi->mi_attrs[i] = mi->mi_attrs[j];
 806                                                 mi->mi_attrs[j] = ai;
 807                                                 break;
 808                                         }
 809                                 }
 810                                 if ( j == mi->mi_nattrs ) {
 811                                         Debug( LDAP_DEBUG_ANY,
 812                                                 LDAP_XSTRING(mdb_tool_entry_reindex)
 813                                                 ": no index configured for %s\n",
 814                                                 adv[i]->ad_cname.bv_val, 0, 0 );
 815                                         return -1;
 816                                 }
 817                         }
 818                 }
 819                 mi->mi_nattrs = i;
 820         }
 821
 822         e = mdb_tool_entry_get( be, id );
 823
 824         if( e == NULL ) {
 825                 Debug( LDAP_DEBUG_ANY,
 826                         LDAP_XSTRING(mdb_tool_entry_reindex)
 827                         ": could not locate id=%ld\n",
 828                         (long) id, 0, 0 );
 829                 return -1;
 830         }
 831
 832         if ( !txi ) {
 833                 rc = mdb_txn_begin( mi->mi_dbenv, NULL, 0, &txi );
 834                 if( rc != 0 ) {
 835                         Debug( LDAP_DEBUG_ANY,
 836                                 "=> " LDAP_XSTRING(mdb_tool_entry_reindex) ": "
 837                                 "txn_begin failed: %s (%d)\n",
 838                                 mdb_strerror(rc), rc, 0 );
 839                         goto done;
 840                 }
 841         }
 842
 843         if ( slapMode & SLAP_TRUNCATE_MODE ) {
 844                 int i;
 845                 for ( i=0; i < mi->mi_nattrs; i++ ) {
 846                         rc = mdb_drop( txi, mi->mi_attrs[i]->ai_dbi, 0 );
 847                         if ( rc ) {
 848                                 Debug( LDAP_DEBUG_ANY,
 849                                         LDAP_XSTRING(mdb_tool_entry_reindex)
 850                                         ": (Truncate) mdb_drop(%s) failed: %s (%d)\n",
 851                                         mi->mi_attrs[i]->ai_desc->ad_type->sat_cname.bv_val,
 852                                         mdb_strerror(rc), rc );
 853                                 return -1;
 854                         }
 855                 }
 856                 slapMode ^= SLAP_TRUNCATE_MODE;
 857         }
 858
 859         /*
 860          * just (re)add them for now
 861          * Use truncate mode to empty/reset index databases
 862          */
 863
 864         Debug( LDAP_DEBUG_TRACE,
 865                 "=> " LDAP_XSTRING(mdb_tool_entry_reindex) "( %ld )\n",
 866                 (long) id, 0, 0 );
 867
 868         op.o_hdr = &ohdr;
 869         op.o_bd = be;
 870         op.o_tmpmemctx = NULL;
 871         op.o_tmpmfuncs = &ch_mfuncs;
 872
 873         rc = mdb_tool_index_add( &op, txi, e );
 874
 875 done:
 876         if( rc == 0 ) {
 877                 mdb_writes++;
 878                 if ( mdb_writes >= mdb_writes_per_commit ) {
 879                         MDB_val key;
 880                         unsigned i;
 881                         MDB_TOOL_IDL_FLUSH( be, txi );
 882                         rc = mdb_txn_commit( txi );
 883                         mdb_writes = 0;
 884                         for ( i=0; i<mi->mi_nattrs; i++ )
 885                                 mi->mi_attrs[i]->ai_cursor = NULL;
 886                         if( rc != 0 ) {
 887                                 Debug( LDAP_DEBUG_ANY,
 888                                         "=> " LDAP_XSTRING(mdb_tool_entry_reindex)
 889                                         ": txn_commit failed: %s (%d)\n",
 890                                         mdb_strerror(rc), rc, 0 );
 891                                 e->e_id = NOID;
 892                         }
 893                         mdb_cursor_close( cursor );
 894                         txi = NULL;
 895                         /* Must close the read txn to allow old pages to be reclaimed. */
 896                         mdb_txn_abort( mdb_tool_txn );
 897                         /* and then reopen it so that tool_entry_next still works. */
 898                         mdb_txn_begin( mi->mi_dbenv, NULL, MDB_RDONLY, &mdb_tool_txn );
 899                         mdb_cursor_open( mdb_tool_txn, mi->mi_id2entry, &cursor );
 900                         key.mv_data = &id;
 901                         key.mv_size = sizeof(ID);
 902                         mdb_cursor_get( cursor, &key, NULL, MDB_SET );
 903                 }
 904
 905         } else {
 906                 unsigned i;
 907                 mdb_writes = 0;
 908                 mdb_cursor_close( cursor );
 909                 cursor = NULL;
 910                 mdb_txn_abort( txi );
 911                 for ( i=0; i<mi->mi_nattrs; i++ )
 912                         mi->mi_attrs[i]->ai_cursor = NULL;
 913                 Debug( LDAP_DEBUG_ANY,
 914                         "=> " LDAP_XSTRING(mdb_tool_entry_reindex)
 915                         ": txn_aborted! err=%d\n",
 916                         rc, 0, 0 );
 917                 e->e_id = NOID;
 918                 txi = NULL;
 919         }
 920         mdb_entry_release( &op, e, 0 );
 921
 922         return rc;
 923 }
 924
 925 ID mdb_tool_entry_modify(
 926         BackendDB *be,
 927         Entry *e,
 928         struct berval *text )
 929 {
 930         int rc;
 931         struct mdb_info *mdb;
 932         Operation op = {0};
 933         Opheader ohdr = {0};
 934
 935         assert( be != NULL );
 936         assert( slapMode & SLAP_TOOL_MODE );
 937
 938         assert( text != NULL );
 939         assert( text->bv_val != NULL );
 940         assert( text->bv_val[0] == '\0' );      /* overconservative? */
 941
 942         assert ( e->e_id != NOID );
 943
 944         Debug( LDAP_DEBUG_TRACE,
 945                 "=> " LDAP_XSTRING(mdb_tool_entry_modify) "( %ld, \"%s\" )\n",
 946                 (long) e->e_id, e->e_dn, 0 );
 947
 948         mdb = (struct mdb_info *) be->be_private;
 949
 950         if( cursor ) {
 951                 mdb_cursor_close( cursor );
 952                 cursor = NULL;
 953         }
 954         if ( !mdb_tool_txn ) {
 955                 rc = mdb_txn_begin( mdb->mi_dbenv, NULL, 0, &mdb_tool_txn );
 956                 if( rc != 0 ) {
 957                         snprintf( text->bv_val, text->bv_len,
 958                                 "txn_begin failed: %s (%d)",
 959                                 mdb_strerror(rc), rc );
 960                         Debug( LDAP_DEBUG_ANY,
 961                                 "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": %s\n",
 962                                  text->bv_val, 0, 0 );
 963                         return NOID;
 964                 }
 965         }
 966
 967         op.o_hdr = &ohdr;
 968         op.o_bd = be;
 969         op.o_tmpmemctx = NULL;
 970         op.o_tmpmfuncs = &ch_mfuncs;
 971
 972         /* id2entry index */
 973         rc = mdb_id2entry_update( &op, mdb_tool_txn, NULL, e );
 974         if( rc != 0 ) {
 975                 snprintf( text->bv_val, text->bv_len,
 976                                 "id2entry_update failed: err=%d", rc );
 977                 Debug( LDAP_DEBUG_ANY,
 978                         "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": %s\n",
 979                         text->bv_val, 0, 0 );
 980                 goto done;
 981         }
 982
 983 done:
 984         if( rc == 0 ) {
 985                 rc = mdb_txn_commit( mdb_tool_txn );
 986                 if( rc != 0 ) {
 987                         mdb->mi_numads = 0;
 988                         snprintf( text->bv_val, text->bv_len,
 989                                         "txn_commit failed: %s (%d)",
 990                                         mdb_strerror(rc), rc );
 991                         Debug( LDAP_DEBUG_ANY,
 992                                 "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": "
 993                                 "%s\n", text->bv_val, 0, 0 );
 994                         e->e_id = NOID;
 995                 }
 996
 997         } else {
 998                 mdb_txn_abort( mdb_tool_txn );
 999                 snprintf( text->bv_val, text->bv_len,
1000                         "txn_aborted! %s (%d)",
1001                         mdb_strerror(rc), rc );
1002                 Debug( LDAP_DEBUG_ANY,
1003                         "=> " LDAP_XSTRING(mdb_tool_entry_modify) ": %s\n",
1004                         text->bv_val, 0, 0 );
1005                 e->e_id = NOID;
1006         }
1007         mdb_tool_txn = NULL;
1008         idcursor = NULL;
1009
1010         return e->e_id;
1011 }
1012
1013 static void *
1014 mdb_tool_index_task( void *ctx, void *ptr )
1015 {
1016         int base = *(int *)ptr;
1017
1018         free( ptr );
1019         while ( 1 ) {
1020                 ldap_pvt_thread_mutex_lock( &mdb_tool_index_mutex );
1021                 mdb_tool_index_tcount--;
1022                 if ( !mdb_tool_index_tcount )
1023                         ldap_pvt_thread_cond_signal( &mdb_tool_index_cond_main );
1024                 ldap_pvt_thread_cond_wait( &mdb_tool_index_cond_work,
1025                         &mdb_tool_index_mutex );
1026                 if ( slapd_shutdown ) {
1027                         mdb_tool_index_tcount--;
1028                         if ( !mdb_tool_index_tcount )
1029                                 ldap_pvt_thread_cond_signal( &mdb_tool_index_cond_main );
1030                         ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
1031                         break;
1032                 }
1033                 ldap_pvt_thread_mutex_unlock( &mdb_tool_index_mutex );
1034                 mdb_tool_index_rec[base].ir_i = mdb_index_recrun( mdb_tool_ix_op,
1035                         mdb_tool_ix_txn,
1036                         mdb_tool_info, mdb_tool_index_rec, mdb_tool_ix_id, base );
1037         }
1038
1039         return NULL;
1040 }
1041
1042 #ifdef MDB_TOOL_IDL_CACHING
1043 static int
1044 mdb_tool_idl_cmp( const void *v1, const void *v2 )
1045 {
1046         const mdb_tool_idl_cache *c1 = v1, *c2 = v2;
1047         int rc;
1048
1049         if (( rc = c1->kstr.bv_len - c2->kstr.bv_len )) return rc;
1050         return memcmp( c1->kstr.bv_val, c2->kstr.bv_val, c1->kstr.bv_len );
1051 }
1052
1053 static int
1054 mdb_tool_idl_flush_one( MDB_cursor *mc, AttrInfo *ai, mdb_tool_idl_cache *ic )
1055 {
1056         mdb_tool_idl_cache_entry *ice;
1057         MDB_val key, data[2];
1058         int i, rc;
1059         ID id, nid;
1060
1061         /* Freshly allocated, ignore it */
1062         if ( !ic->head && ic->count <= MDB_IDL_DB_SIZE ) {
1063                 return 0;
1064         }
1065
1066         key.mv_data = ic->kstr.bv_val;
1067         key.mv_size = ic->kstr.bv_len;
1068
1069         if ( ic->count > MDB_IDL_DB_SIZE ) {
1070                 while ( ic->flags & WAS_FOUND ) {
1071                         rc = mdb_cursor_get( mc, &key, data, MDB_SET );
1072                         if ( rc ) {
1073                                 /* FIXME: find out why this happens */
1074                                 ic->flags = 0;
1075                                 break;
1076                         }
1077                         if ( ic->flags & WAS_RANGE ) {
1078                                 /* Skip lo */
1079                                 rc = mdb_cursor_get( mc, &key, data, MDB_NEXT_DUP );
1080
1081                                 /* Get hi */
1082                                 rc = mdb_cursor_get( mc, &key, data, MDB_NEXT_DUP );
1083
1084                                 /* Store range hi */
1085                                 data[0].mv_data = &ic->last;
1086                                 rc = mdb_cursor_put( mc, &key, data, MDB_CURRENT );
1087                         } else {
1088                                 /* Delete old data, replace with range */
1089                                 ic->first = *(ID *)data[0].mv_data;
1090                                 mdb_cursor_del( mc, MDB_NODUPDATA );
1091                         }
1092                         break;
1093                 }
1094                 if ( !(ic->flags & WAS_RANGE)) {
1095                         /* range, didn't exist before */
1096                         nid = 0;
1097                         data[0].mv_size = sizeof(ID);
1098                         data[0].mv_data = &nid;
1099                         rc = mdb_cursor_put( mc, &key, data, 0 );
1100                         if ( rc == 0 ) {
1101                                 data[0].mv_data = &ic->first;
1102                                 rc = mdb_cursor_put( mc, &key, data, 0 );
1103                                 if ( rc == 0 ) {
1104                                         data[0].mv_data = &ic->last;
1105                                         rc = mdb_cursor_put( mc, &key, data, 0 );
1106                                 }
1107                         }
1108                         if ( rc ) {
1109                                 rc = -1;
1110                         }
1111                 }
1112         } else {
1113                 /* Normal write */
1114                 int n;
1115
1116                 data[0].mv_size = sizeof(ID);
1117                 rc = 0;
1118                 i = ic->offset;
1119                 for ( ice = ic->head, n=0; ice; ice = ice->next, n++ ) {
1120                         int end;
1121                         if ( ice->next ) {
1122                                 end = IDBLOCK;
1123                         } else {
1124                                 end = ic->count & (IDBLOCK-1);
1125                                 if ( !end )
1126                                         end = IDBLOCK;
1127                         }
1128                         data[1].mv_size = end - i;
1129                         data[0].mv_data = &ice->ids[i];
1130                         i = 0;
1131                         rc = mdb_cursor_put( mc, &key, data, MDB_NODUPDATA|MDB_APPEND|MDB_MULTIPLE );
1132                         if ( rc ) {
1133                                 if ( rc == MDB_KEYEXIST ) {
1134                                         rc = 0;
1135                                         continue;
1136                                 }
1137                                 rc = -1;
1138                                 break;
1139                         }
1140                 }
1141                 if ( ic->head ) {
1142                         ic->tail->next = ai->ai_flist;
1143                         ai->ai_flist = ic->head;
1144                 }
1145         }
1146         ic->head = ai->ai_clist;
1147         ai->ai_clist = ic;
1148         return rc;
1149 }
1150
1151 static int
1152 mdb_tool_idl_flush_db( MDB_txn *txn, AttrInfo *ai )
1153 {
1154         MDB_cursor *mc;
1155         Avlnode *root;
1156         int rc;
1157
1158         mdb_cursor_open( txn, ai->ai_dbi, &mc );
1159         root = tavl_end( ai->ai_root, TAVL_DIR_LEFT );
1160         do {
1161                 rc = mdb_tool_idl_flush_one( mc, ai, root->avl_data );
1162                 if ( rc != -1 )
1163                         rc = 0;
1164         } while ((root = tavl_next(root, TAVL_DIR_RIGHT)));
1165         mdb_cursor_close( mc );
1166
1167         return rc;
1168 }
1169
1170 static int
1171 mdb_tool_idl_flush( BackendDB *be, MDB_txn *txn )
1172 {
1173         struct mdb_info *mdb = (struct mdb_info *) be->be_private;
1174         int rc = 0;
1175         unsigned int i, dbi;
1176
1177         for ( i=0; i < mdb->mi_nattrs; i++ ) {
1178                 if ( !mdb->mi_attrs[i]->ai_root ) continue;
1179                 rc = mdb_tool_idl_flush_db( txn, mdb->mi_attrs[i] );
1180                 tavl_free(mdb->mi_attrs[i]->ai_root, NULL);
1181                 mdb->mi_attrs[i]->ai_root = NULL;
1182                 if ( rc )
1183                         break;
1184         }
1185         return rc;
1186 }
1187
1188 int mdb_tool_idl_add(
1189         BackendDB *be,
1190         MDB_cursor *mc,
1191         struct berval *keys,
1192         ID id )
1193 {
1194         MDB_dbi dbi;
1195         mdb_tool_idl_cache *ic, itmp;
1196         mdb_tool_idl_cache_entry *ice;
1197         int i, rc, lcount;
1198         AttrInfo *ai = (AttrInfo *)mc;
1199         mc = ai->ai_cursor;
1200
1201         dbi = ai->ai_dbi;
1202         for (i=0; keys[i].bv_val; i++) {
1203         itmp.kstr = keys[i];
1204         ic = tavl_find( (Avlnode *)ai->ai_root, &itmp, mdb_tool_idl_cmp );
1205
1206         /* No entry yet, create one */
1207         if ( !ic ) {
1208                 MDB_val key, data;
1209                 ID nid;
1210                 int rc;
1211
1212                 if ( ai->ai_clist ) {
1213                         ic = ai->ai_clist;
1214                         ai->ai_clist = ic->head;
1215                 } else {
1216                         ic = ch_malloc( sizeof( mdb_tool_idl_cache ) + itmp.kstr.bv_len + 4 );
1217                 }
1218                 ic->kstr.bv_len = itmp.kstr.bv_len;
1219                 ic->kstr.bv_val = (char *)(ic+1);
1220                 memcpy( ic->kstr.bv_val, itmp.kstr.bv_val, ic->kstr.bv_len );
1221                 ic->head = ic->tail = NULL;
1222                 ic->last = 0;
1223                 ic->count = 0;
1224                 ic->offset = 0;
1225                 ic->flags = 0;
1226                 tavl_insert( (Avlnode **)&ai->ai_root, ic, mdb_tool_idl_cmp,
1227                         avl_dup_error );
1228
1229                 /* load existing key count here */
1230                 key.mv_size = keys[i].bv_len;
1231                 key.mv_data = keys[i].bv_val;
1232                 rc = mdb_cursor_get( mc, &key, &data, MDB_SET );
1233                 if ( rc == 0 ) {
1234                         ic->flags |= WAS_FOUND;
1235                         nid = *(ID *)data.mv_data;
1236                         if ( nid == 0 ) {
1237                                 ic->count = MDB_IDL_DB_SIZE+1;
1238                                 ic->flags |= WAS_RANGE;
1239                         } else {
1240                                 size_t count;
1241
1242                                 mdb_cursor_count( mc, &count );
1243                                 ic->count = count;
1244                                 ic->first = nid;
1245                                 ic->offset = count & (IDBLOCK-1);
1246                         }
1247                 }
1248         }
1249         /* are we a range already? */
1250         if ( ic->count > MDB_IDL_DB_SIZE ) {
1251                 ic->last = id;
1252                 continue;
1253         /* Are we at the limit, and converting to a range? */
1254         } else if ( ic->count == MDB_IDL_DB_SIZE ) {
1255                 if ( ic->head ) {
1256                         ic->tail->next = ai->ai_flist;
1257                         ai->ai_flist = ic->head;
1258                 }
1259                 ic->head = ic->tail = NULL;
1260                 ic->last = id;
1261                 ic->count++;
1262                 continue;
1263         }
1264         /* No free block, create that too */
1265         lcount = ic->count & (IDBLOCK-1);
1266         if ( !ic->tail || lcount == 0) {
1267                 if ( ai->ai_flist ) {
1268                         ice = ai->ai_flist;
1269                         ai->ai_flist = ice->next;
1270                 } else {
1271                         ice = ch_malloc( sizeof( mdb_tool_idl_cache_entry ));
1272                 }
1273                 ice->next = NULL;
1274                 if ( !ic->head ) {
1275                         ic->head = ice;
1276                 } else {
1277                         ic->tail->next = ice;
1278                 }
1279                 ic->tail = ice;
1280                 if ( lcount )
1281                         ice->ids[lcount-1] = 0;
1282                 if ( !ic->count )
1283                         ic->first = id;
1284         }
1285         ice = ic->tail;
1286         if (!lcount || ice->ids[lcount-1] != id)
1287                 ice->ids[lcount] = id;
1288         ic->count++;
1289         }
1290
1291         return 0;
1292 }
1293 #endif /* MDB_TOOL_IDL_CACHING */
1294
1295 /* Upgrade from pre 2.4.34 dn2id format */
1296
1297 #include <ac/unistd.h>
1298 #include <lutil_meter.h>
1299
1300 #define STACKSIZ        2048
1301
1302 typedef struct rec {
1303         ID id;
1304         size_t len;
1305         char rdn[512];
1306 } rec;
1307
1308 static int
1309 mdb_dn2id_upgrade( BackendDB *be ) {
1310         struct mdb_info *mi = (struct mdb_info *) be->be_private;
1311         MDB_txn *mt;
1312         MDB_cursor *mc = NULL;
1313         MDB_val key, data;
1314         char *ptr;
1315         int rc, writes=0, depth=0;
1316         int enable_meter = 0;
1317         ID id = 0, *num, count = 0;
1318         rec *stack;
1319         lutil_meter_t meter;
1320
1321         if (!(mi->mi_flags & MDB_NEED_UPGRADE)) {
1322                 Debug( LDAP_DEBUG_ANY, "database %s: No upgrade needed.\n",
1323                         be->be_suffix[0].bv_val, 0, 0 );
1324                 return 0;
1325         }
1326
1327         {
1328                 MDB_stat st;
1329
1330                 mdb_stat(mdb_cursor_txn(cursor), mi->mi_dbis[MDB_ID2ENTRY], &st);
1331                 if (!st.ms_entries) {
1332                         /* Empty DB, nothing to upgrade? */
1333                         return 0;
1334                 }
1335                 if (isatty(2))
1336                         enable_meter = !lutil_meter_open(&meter,
1337                                 &lutil_meter_text_display,
1338                                 &lutil_meter_linear_estimator,
1339                                 st.ms_entries);
1340         }
1341
1342         num = ch_malloc(STACKSIZ * (sizeof(ID) + sizeof(rec)));
1343         stack = (rec *)(num + STACKSIZ);
1344
1345         rc = mdb_txn_begin(mi->mi_dbenv, NULL, 0, &mt);
1346         if (rc) {
1347                 Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_txn_begin failed, %s (%d)\n",
1348                         mdb_strerror(rc), rc, 0 );
1349                 goto leave;
1350         }
1351         rc = mdb_cursor_open(mt, mi->mi_dbis[MDB_DN2ID], &mc);
1352         if (rc) {
1353                 Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_open failed, %s (%d)\n",
1354                         mdb_strerror(rc), rc, 0 );
1355                 goto leave;
1356         }
1357
1358         key.mv_size = sizeof(ID);
1359         /* post-order depth-first update */
1360         for(;;) {
1361                 size_t dkids;
1362                 unsigned char *ptr;
1363
1364                 /* visit */
1365                 key.mv_data = &id;
1366                 stack[depth].id = id;
1367                 rc = mdb_cursor_get(mc, &key, &data, MDB_SET);
1368                 if (rc) {
1369                         Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_get failed, %s (%d)\n",
1370                                 mdb_strerror(rc), rc, 0 );
1371                         goto leave;
1372                 }
1373                 num[depth] = 1;
1374
1375                 rc = mdb_cursor_count(mc, &dkids);
1376                 if (rc) {
1377                         Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_count failed, %s (%d)\n",
1378                                 mdb_strerror(rc), rc, 0 );
1379                         goto leave;
1380                 }
1381                 if (dkids > 1) {
1382                         rc = mdb_cursor_get(mc, &key, &data, MDB_NEXT_DUP);
1383 down:
1384                         ptr = (unsigned char *)data.mv_data + data.mv_size - sizeof(ID);
1385                         memcpy(&id, ptr, sizeof(ID));
1386                         depth++;
1387                         memcpy(stack[depth].rdn, data.mv_data, data.mv_size);
1388                         stack[depth].len = data.mv_size;
1389                         continue;
1390                 }
1391
1392
1393                 /* pop: write updated count, advance to next node */
1394 pop:
1395                 /* update superior counts */
1396                 if (depth)
1397                         num[depth-1] += num[depth];
1398
1399                 key.mv_data = &id;
1400                 id = stack[depth-1].id;
1401                 data.mv_data = stack[depth].rdn;
1402                 data.mv_size = stack[depth].len;
1403                 rc = mdb_cursor_get(mc, &key, &data, MDB_GET_BOTH);
1404                 if (rc) {
1405                         Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_get(BOTH) failed, %s (%d)\n",
1406                                 mdb_strerror(rc), rc, 0 );
1407                         goto leave;
1408                 }
1409                 data.mv_data = stack[depth].rdn;
1410                 ptr = (unsigned char *)data.mv_data + data.mv_size;
1411                 memcpy(ptr, &num[depth], sizeof(ID));
1412                 data.mv_size += sizeof(ID);
1413                 rc = mdb_cursor_del(mc, 0);
1414                 if (rc) {
1415                         Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_del failed, %s (%d)\n",
1416                                 mdb_strerror(rc), rc, 0 );
1417                         goto leave;
1418                 }
1419                 rc = mdb_cursor_put(mc, &key, &data, 0);
1420                 if (rc) {
1421                         Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_put failed, %s (%d)\n",
1422                                 mdb_strerror(rc), rc, 0 );
1423                         goto leave;
1424                 }
1425                 count++;
1426 #if 1
1427                 if (enable_meter)
1428                         lutil_meter_update(&meter, count, 0);
1429 #else
1430                 {
1431                         int len;
1432                         ptr = data.mv_data;
1433                         len = (ptr[0] & 0x7f) << 8 | ptr[1];
1434                         printf("ID: %zu, %zu, %.*s\n", stack[depth].id, num[depth], len, ptr+2);
1435                 }
1436 #endif
1437                 writes++;
1438                 if (writes == 1000) {
1439                         mdb_cursor_close(mc);
1440                         rc = mdb_txn_commit(mt);
1441                         if (rc) {
1442                                 Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_txn_commit failed, %s (%d)\n",
1443                                         mdb_strerror(rc), rc, 0 );
1444                                 goto leave;
1445                         }
1446                         rc = mdb_txn_begin(mi->mi_dbenv, NULL, 0, &mt);
1447                         if (rc) {
1448                                 Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_txn_begin(2) failed, %s (%d)\n",
1449                                         mdb_strerror(rc), rc, 0 );
1450                                 goto leave;
1451                         }
1452                         rc = mdb_cursor_open(mt, mi->mi_dbis[MDB_DN2ID], &mc);
1453                         if (rc) {
1454                                 Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_open(2) failed, %s (%d)\n",
1455                                         mdb_strerror(rc), rc, 0 );
1456                                 goto leave;
1457                         }
1458                         rc = mdb_cursor_get(mc, &key, &data, MDB_GET_BOTH);
1459                         if (rc) {
1460                                 Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_cursor_get(2) failed, %s (%d)\n",
1461                                         mdb_strerror(rc), rc, 0 );
1462                                 goto leave;
1463                         }
1464                         writes = 0;
1465                 }
1466                 depth--;
1467
1468                 rc = mdb_cursor_get(mc, &key, &data, MDB_NEXT_DUP);
1469                 if (rc == 0)
1470                         goto down;
1471                 rc = 0;
1472                 if (depth)
1473                         goto pop;
1474                 else
1475                         break;
1476         }
1477 leave:
1478         mdb_cursor_close(mc);
1479         if (mt) {
1480                 int r2;
1481                 r2 = mdb_txn_commit(mt);
1482                 if (r2) {
1483                         Debug(LDAP_DEBUG_ANY, "mdb_dn2id_upgrade: mdb_txn_commit(2) failed, %s (%d)\n",
1484                                 mdb_strerror(r2), r2, 0 );
1485                         if (!rc)
1486                                 rc = r2;
1487                 }
1488         }
1489         ch_free(num);
1490         if (enable_meter) {
1491                 lutil_meter_update(&meter, count, 1);
1492                 lutil_meter_close(&meter);
1493         }
1494         return rc;
1495 }