git.sur5r.net Git - openldap/blob - servers/slapd/back-sql/schema-map.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2006 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2002 Pierangelo Masarati.
   7  * Portions Copyright 2004 Mark Adamson.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by Dmitry Kovalev for inclusion
  20  * by OpenLDAP Software.  Additional significant contributors include
  21  * Pierangelo Masarati and Mark Adamson.
  22  */
  23
  24 #include "portable.h"
  25
  26 #include <stdio.h>
  27 #include <sys/types.h>
  28 #include "ac/string.h"
  29
  30 #include "lutil.h"
  31 #include "slap.h"
  32 #include "proto-sql.h"
  33
  34 #define BACKSQL_DUPLICATE       (-1)
  35
  36 /* NOTE: by default, cannot just compare pointers because
  37  * objectClass/attributeType order would be machine-dependent
  38  * (and tests would fail!); however, if you don't want to run
  39  * tests, or see attributeTypes written in the same order
  40  * they are defined, define */
  41 /* #undef BACKSQL_USE_PTR_CMP */
  42
  43 /*
  44  * Uses the pointer to the ObjectClass structure
  45  */
  46 static int
  47 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  48 {
  49         const backsql_oc_map_rec        *m1 = v_m1,
  50                                         *m2 = v_m2;
  51
  52 #ifdef BACKSQL_USE_PTR_CMP
  53         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  54 #else /* ! BACKSQL_USE_PTR_CMP */
  55         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  56 #endif /* ! BACKSQL_USE_PTR_CMP */
  57 }
  58
  59 static int
  60 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  61 {
  62         const backsql_oc_map_rec        *m1 = v_m1,
  63                                         *m2 = v_m2;
  64
  65         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  66 }
  67
  68 /*
  69  * Uses the pointer to the AttributeDescription structure
  70  */
  71 static int
  72 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  73 {
  74         const backsql_at_map_rec        *m1 = v_m1,
  75                                         *m2 = v_m2;
  76
  77 #ifdef BACKSQL_USE_PTR_CMP
  78         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  79 #else /* ! BACKSQL_USE_PTR_CMP */
  80         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  81 #endif /* ! BACKSQL_USE_PTR_CMP */
  82 }
  83
  84 int
  85 backsql_dup_attr( void *v_m1, void *v_m2 )
  86 {
  87         backsql_at_map_rec              *m1 = v_m1,
  88                                         *m2 = v_m2;
  89
  90         assert( m1->bam_ad == m2->bam_ad );
  91
  92         /* duplicate definitions of attributeTypes are appended;
  93          * this allows to define multiple rules for the same
  94          * attributeType.  Use with care! */
  95         for ( ; m1->bam_next ; m1 = m1->bam_next );
  96         m1->bam_next = m2;
  97         m2->bam_next = NULL;
  98
  99         return BACKSQL_DUPLICATE;
 100 }
 101
 102 static int
 103 backsql_make_attr_query(
 104         backsql_info            *bi,
 105         backsql_oc_map_rec      *oc_map,
 106         backsql_at_map_rec      *at_map )
 107 {
 108         struct berbuf   bb = BB_NULL;
 109
 110         backsql_strfcat_x( &bb, NULL, "lblbbbblblbcbl",
 111                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 112                         &at_map->bam_sel_expr,
 113                         (ber_len_t)STRLENOF( " " ), " ",
 114                         &bi->sql_aliasing,
 115                         &bi->sql_aliasing_quote,
 116                         &at_map->bam_ad->ad_cname,
 117                         &bi->sql_aliasing_quote,
 118                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 119                         &at_map->bam_from_tbls,
 120                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 121                         &oc_map->bom_keytbl,
 122                         '.',
 123                         &oc_map->bom_keycol,
 124                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 125
 126         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 127                 backsql_strfcat_x( &bb, NULL, "lb",
 128                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 129                                 &at_map->bam_join_where );
 130         }
 131
 132         backsql_strfcat_x( &bb, NULL, "lbbb",
 133                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 134                         &bi->sql_aliasing_quote,
 135                         &at_map->bam_ad->ad_cname,
 136                         &bi->sql_aliasing_quote );
 137
 138         at_map->bam_query = bb.bb_val.bv_val;
 139
 140 #ifdef BACKSQL_COUNTQUERY
 141         /* Query to count how many rows will be returned. */
 142         BER_BVZERO( &bb.bb_val );
 143         bb.bb_len = 0;
 144         backsql_strfcat_x( &bb, NULL, "lblbcbl",
 145                         (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ),
 146                                 "SELECT COUNT(*) FROM ",
 147                         &at_map->bam_from_tbls,
 148                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 149                         &oc_map->bom_keytbl,
 150                         '.',
 151                         &oc_map->bom_keycol,
 152                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 153
 154         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 155                 backsql_strfcat_x( &bb, NULL, "lb",
 156                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 157                                 &at_map->bam_join_where );
 158         }
 159
 160         at_map->bam_countquery = bb.bb_val.bv_val;
 161 #endif /* BACKSQL_COUNTQUERY */
 162
 163         return 0;
 164 }
 165
 166 static int
 167 backsql_add_sysmaps( backsql_info *bi, backsql_oc_map_rec *oc_map )
 168 {
 169         backsql_at_map_rec      *at_map;
 170         char                    s[] = "+9223372036854775807L";
 171         struct berval           sbv;
 172         struct berbuf           bb;
 173
 174         sbv.bv_val = s;
 175         sbv.bv_len = snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 176
 177         /* extra objectClasses */
 178         at_map = (backsql_at_map_rec *)ch_calloc(1,
 179                         sizeof( backsql_at_map_rec ) );
 180         at_map->bam_ad = slap_schema.si_ad_objectClass;
 181         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 182                         &at_map->bam_sel_expr );
 183         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 184                         &at_map->bam_from_tbls );
 185
 186         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 187         bb.bb_val = at_map->bam_from_tbls;
 188         backsql_merge_from_clause( bi, &bb, &oc_map->bom_keytbl );
 189         at_map->bam_from_tbls = bb.bb_val;
 190
 191         BER_BVZERO( &bb.bb_val );
 192         bb.bb_len = 0;
 193         backsql_strfcat_x( &bb, NULL, "lbcblb",
 194                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 195                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 196                         &oc_map->bom_keytbl,
 197                         '.',
 198                         &oc_map->bom_keycol,
 199                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 200                                 " and ldap_entries.oc_map_id=",
 201                         &sbv );
 202         at_map->bam_join_where = bb.bb_val;
 203
 204         at_map->bam_oc = oc_map->bom_oc;
 205
 206         at_map->bam_add_proc = NULL;
 207         {
 208                 char    tmp[] =
 209                         "INSERT INTO ldap_entry_objclasses "
 210                         "(entry_id,oc_name) VALUES "
 211                         "((SELECT id FROM ldap_entries "
 212                         "WHERE oc_map_id="
 213                         "18446744073709551615UL "       /* 64 bit ULONG */
 214                         "AND keyval=?),?)";
 215                 snprintf( tmp, sizeof(tmp),
 216                         "INSERT INTO ldap_entry_objclasses "
 217                         "(entry_id,oc_name) VALUES "
 218                         "((SELECT id FROM ldap_entries "
 219                         "WHERE oc_map_id=%lu "
 220                         "AND keyval=?),?)", oc_map->bom_id );
 221                 at_map->bam_add_proc = ch_strdup( tmp );
 222         }
 223
 224         at_map->bam_delete_proc = NULL;
 225         {
 226                 char    tmp[] =
 227                         "DELETE FROM ldap_entry_objclasses "
 228                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 229                         "WHERE oc_map_id="
 230                         "18446744073709551615UL "       /* 64 bit ULONG */
 231                         "AND keyval=?) AND oc_name=?";
 232                 snprintf( tmp, sizeof(tmp),
 233                         "DELETE FROM ldap_entry_objclasses "
 234                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 235                         "WHERE oc_map_id=%lu "
 236                         "AND keyval=?) AND oc_name=?",
 237                         oc_map->bom_id );
 238                 at_map->bam_delete_proc = ch_strdup( tmp );
 239         }
 240
 241         at_map->bam_param_order = 0;
 242         at_map->bam_expect_return = 0;
 243         at_map->bam_next = NULL;
 244
 245         backsql_make_attr_query( bi, oc_map, at_map );
 246         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 247                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 248                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 249                                 at_map->bam_ad->ad_cname.bv_val,
 250                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 251         }
 252
 253         /* FIXME: we need to correct the objectClass join_where
 254          * after the attribute query is built */
 255         ch_free( at_map->bam_join_where.bv_val );
 256         BER_BVZERO( &bb.bb_val );
 257         bb.bb_len = 0;
 258         backsql_strfcat_x( &bb, NULL, "lbcblb",
 259                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 260                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 261                         &oc_map->bom_keytbl,
 262                         '.',
 263                         &oc_map->bom_keycol,
 264                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 265                                 " AND ldap_entries.oc_map_id=",
 266                         &sbv );
 267         at_map->bam_join_where = bb.bb_val;
 268
 269         return 1;
 270 }
 271
 272 struct backsql_attr_schema_info {
 273         backsql_info    *bas_bi;
 274         SQLHDBC         bas_dbh;
 275         SQLHSTMT        bas_sth;
 276         unsigned long   *bas_oc_id;
 277         int             bas_rc;
 278 };
 279
 280 static int
 281 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 282 {
 283         RETCODE                         rc;
 284         BACKSQL_ROW_NTS                 at_row;
 285         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 286         backsql_at_map_rec              *at_map;
 287         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 288
 289         /* bas->bas_oc_id has been bound to bas->bas_sth */
 290         *bas->bas_oc_id = oc_map->bom_id;
 291
 292         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 293                 "executing at_query\n"
 294                 "    \"%s\"\n"
 295                 "    for objectClass \"%s\"\n"
 296                 "    with param oc_id=\"%lu\"\n",
 297                 bas->bas_bi->sql_at_query,
 298                 BACKSQL_OC_NAME( oc_map ),
 299                 *bas->bas_oc_id );
 300
 301         rc = SQLExecute( bas->bas_sth );
 302         if ( rc != SQL_SUCCESS ) {
 303                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 304                         "error executing at_query\n"
 305                         "    \"%s\"\n"
 306                         "    for objectClass \"%s\"\n"
 307                         "    with param oc_id=\"%lu\"\n",
 308                         bas->bas_bi->sql_at_query,
 309                         BACKSQL_OC_NAME( oc_map ),
 310                         *bas->bas_oc_id );
 311                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 312                                 bas->bas_dbh, bas->bas_sth, rc );
 313                 bas->bas_rc = LDAP_OTHER;
 314                 return BACKSQL_AVL_STOP;
 315         }
 316
 317         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 318         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 319                 const char      *text = NULL;
 320                 struct berval   bv;
 321                 struct berbuf   bb = BB_NULL;
 322                 AttributeDescription *ad = NULL;
 323
 324                 Debug( LDAP_DEBUG_TRACE,
 325                         "attributeType:\n"
 326                         "\tname=\"%s\"\n"
 327                         "\tsel_expr=\"%s\"\n"
 328                         "\tfrom=\"%s\"\n",
 329                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 330                         at_row.cols[ 2 ] );
 331                 Debug( LDAP_DEBUG_TRACE,
 332                         "\tjoin_where=\"%s\"\n"
 333                         "\tadd_proc=\"%s\"\n"
 334                         "\tdelete_proc=\"%s\"\n",
 335                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 336                         at_row.cols[ 5 ]);
 337                 /* TimesTen */
 338                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 339                                 at_row.cols[ 8 ], 0, 0 );
 340                 rc = slap_str2ad( at_row.cols[ 0 ], &ad, &text );
 341                 if ( rc != LDAP_SUCCESS ) {
 342                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 343                                 "attribute \"%s\" for objectClass \"%s\" "
 344                                 "is not defined in schema: %s\n",
 345                                 at_row.cols[ 0 ],
 346                                 BACKSQL_OC_NAME( oc_map ), text );
 347                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 348                         return BACKSQL_AVL_STOP;
 349                 }
 350                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 351                                 sizeof( backsql_at_map_rec ) );
 352                 at_map->bam_ad = ad;
 353
 354                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 355                 if ( at_row.value_len[ 8 ] < 0 ) {
 356                         BER_BVZERO( &at_map->bam_sel_expr_u );
 357
 358                 } else {
 359                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 360                                         &at_map->bam_sel_expr_u );
 361                 }
 362
 363                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 364                 backsql_merge_from_clause( bas->bas_bi, &bb, &bv );
 365                 at_map->bam_from_tbls = bb.bb_val;
 366                 if ( at_row.value_len[ 3 ] < 0 ) {
 367                         BER_BVZERO( &at_map->bam_join_where );
 368
 369                 } else {
 370                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 371                                         &at_map->bam_join_where );
 372                 }
 373                 at_map->bam_add_proc = NULL;
 374                 if ( at_row.value_len[ 4 ] > 0 ) {
 375                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 376                 }
 377                 at_map->bam_delete_proc = NULL;
 378                 if ( at_row.value_len[ 5 ] > 0 ) {
 379                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 380                 }
 381                 if ( lutil_atoix( &at_map->bam_param_order, at_row.cols[ 6 ], 0 ) != 0 ) {
 382                         /* error */
 383                 }
 384                 if ( lutil_atoix( &at_map->bam_expect_return, at_row.cols[ 7 ], 0 ) != 0 ) {
 385                         /* error */
 386                 }
 387                 backsql_make_attr_query( bas->bas_bi, oc_map, at_map );
 388                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 389                         "preconstructed query \"%s\"\n",
 390                         at_map->bam_query, 0, 0 );
 391                 at_map->bam_next = NULL;
 392                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 393                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 394                                         "duplicate attribute \"%s\" "
 395                                         "in objectClass \"%s\" map\n",
 396                                         at_map->bam_ad->ad_cname.bv_val,
 397                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 398                 }
 399
 400                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 401                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 402                 {
 403                         struct berbuf   bb = BB_NULL;
 404
 405                         backsql_strfcat_x( &bb, NULL, "bcbc",
 406                                         &bas->bas_bi->sql_upper_func,
 407                                         '(' /* ) */ ,
 408                                         &at_map->bam_sel_expr,
 409                                         /* ( */ ')' );
 410                         at_map->bam_sel_expr_u = bb.bb_val;
 411                 }
 412         }
 413         backsql_FreeRow( &at_row );
 414         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 415
 416         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 417                 "autoadding 'objectClass' and 'ref' mappings\n",
 418                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 419
 420         (void)backsql_add_sysmaps( bas->bas_bi, oc_map );
 421
 422         return BACKSQL_AVL_CONTINUE;
 423 }
 424
 425
 426 int
 427 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 428 {
 429         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 430         RETCODE                         rc;
 431         BACKSQL_ROW_NTS                 oc_row;
 432         unsigned long                   oc_id;
 433         backsql_oc_map_rec              *oc_map;
 434         struct backsql_attr_schema_info bas;
 435
 436         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 437
 438         /*
 439          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 440          */
 441         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 442                 rc = backsql_Prepare( dbh, &sth,
 443                                 backsql_check_dn_ru_query, 0 );
 444                 if ( rc == SQL_SUCCESS ) {
 445                         /* Yes, the field exists */
 446                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 447                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 448                                 "in the schema\n", 0, 0, 0 );
 449                 } else {
 450                         /* No such field exists */
 451                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 452                 }
 453
 454                 SQLFreeStmt( sth, SQL_DROP );
 455         }
 456
 457         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 458                         bi->sql_oc_query, 0, 0 );
 459
 460         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 461         if ( rc != SQL_SUCCESS ) {
 462                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 463                         "error preparing oc_query: \"%s\"\n",
 464                         bi->sql_oc_query, 0, 0 );
 465                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 466                 return LDAP_OTHER;
 467         }
 468
 469         rc = SQLExecute( sth );
 470         if ( rc != SQL_SUCCESS ) {
 471                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 472                         "error executing oc_query: \n", 0, 0, 0 );
 473                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 474                 return LDAP_OTHER;
 475         }
 476
 477         backsql_BindRowAsStrings( sth, &oc_row );
 478         rc = SQLFetch( sth );
 479         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 480                 int     colnum;
 481
 482                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 483                                 sizeof( backsql_oc_map_rec ) );
 484
 485                 if ( lutil_atoulx( &oc_map->bom_id, oc_row.cols[ 0 ], 0 ) != 0 ) {
 486                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 487                                 "unable to parse id=\"%s\"\n",
 488                                 oc_row.cols[ 0 ], 0, 0 );
 489                         return LDAP_OTHER;
 490                 }
 491
 492                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 493                 if ( oc_map->bom_oc == NULL ) {
 494                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 495                                 "objectClass \"%s\" is not defined in schema\n",
 496                                 oc_row.cols[ 1 ], 0, 0 );
 497                         return LDAP_OTHER;      /* undefined objectClass ? */
 498                 }
 499
 500                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 501                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 502                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 503                         : ch_strdup( oc_row.cols[ 4 ] );
 504
 505                 colnum = 5;
 506                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 507                         colnum = 6;
 508                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 509                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 510                 }
 511                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 512                         : ch_strdup( oc_row.cols[ colnum ] );
 513                 if ( lutil_atoix( &oc_map->bom_expect_return, oc_row.cols[ colnum + 1 ], 0 ) != 0 ) {
 514                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 515                                 "unable to parse expect_return=\"%s\" for objectClass \"%s\"\n",
 516                                 oc_row.cols[ colnum + 1 ], oc_row.cols[ 1 ], 0 );
 517                         return LDAP_OTHER;
 518                 }
 519
 520                 colnum += 2;
 521                 if ( ( oc_row.ncols > colnum ) &&
 522                                 ( oc_row.value_len[ colnum ] > 0 ) )
 523                 {
 524                         const char      *text;
 525
 526                         oc_map->bom_create_hint = NULL;
 527                         rc = slap_str2ad( oc_row.cols[ colnum ],
 528                                         &oc_map->bom_create_hint, &text );
 529                         if ( rc != SQL_SUCCESS ) {
 530                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 531                                                 "error matching "
 532                                                 "AttributeDescription %s "
 533                                                 "in create_hint: %s (%d)\n",
 534                                                 oc_row.cols[ colnum ],
 535                                                 text, rc );
 536                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 537                                                 sth, rc );
 538                                 return LDAP_OTHER;
 539                         }
 540                 }
 541
 542                 /*
 543                  * FIXME: first attempt to check for offending
 544                  * instructions in {create|delete}_proc
 545                  */
 546
 547                 oc_map->bom_attrs = NULL;
 548                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 549                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 550                                         "duplicate objectClass \"%s\" in objectClass map\n",
 551                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 552                         return LDAP_OTHER;
 553                 }
 554                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 555                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 556                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 557                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 558                         return LDAP_OTHER;
 559                 }
 560                 oc_id = oc_map->bom_id;
 561                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 562                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 563                         BACKSQL_OC_NAME( oc_map ),
 564                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 565                 if ( oc_map->bom_create_proc ) {
 566                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 567                                 oc_map->bom_create_proc, 0, 0 );
 568                 }
 569                 if ( oc_map->bom_create_keyval ) {
 570                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 571                                 oc_map->bom_create_keyval, 0, 0 );
 572                 }
 573                 if ( oc_map->bom_create_hint ) {
 574                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 575                                 oc_map->bom_create_hint->ad_cname.bv_val,
 576                                 0, 0 );
 577                 }
 578                 if ( oc_map->bom_delete_proc ) {
 579                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 580                                 oc_map->bom_delete_proc, 0, 0 );
 581                 }
 582                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 583                         "add=%d, del=%d; attributes:\n",
 584                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 585                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 586         }
 587
 588         backsql_FreeRow( &oc_row );
 589         SQLFreeStmt( sth, SQL_DROP );
 590
 591         /* prepare for attribute fetching */
 592         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 593                         bi->sql_at_query, 0, 0 );
 594
 595         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 596         if ( rc != SQL_SUCCESS ) {
 597                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 598                         "error preparing at_query: \"%s\"\n",
 599                         bi->sql_at_query, 0, 0 );
 600                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 601                 return LDAP_OTHER;
 602         }
 603
 604         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 605         if ( rc != SQL_SUCCESS ) {
 606                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 607                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 608                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 609                 SQLFreeStmt( sth, SQL_DROP );
 610                 return LDAP_OTHER;
 611         }
 612
 613         bas.bas_bi = bi;
 614         bas.bas_dbh = dbh;
 615         bas.bas_sth = sth;
 616         bas.bas_oc_id = &oc_id;
 617         bas.bas_rc = LDAP_SUCCESS;
 618
 619         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 620                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 621
 622         SQLFreeStmt( sth, SQL_DROP );
 623
 624         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 625
 626         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 627
 628         return bas.bas_rc;
 629 }
 630
 631 backsql_oc_map_rec *
 632 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 633 {
 634         backsql_oc_map_rec      tmp, *res;
 635
 636 #ifdef BACKSQL_TRACE
 637         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 638                 "searching for objectclass with name=\"%s\"\n",
 639                 oc->soc_cname.bv_val, 0, 0 );
 640 #endif /* BACKSQL_TRACE */
 641
 642         tmp.bom_oc = oc;
 643         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 644 #ifdef BACKSQL_TRACE
 645         if ( res != NULL ) {
 646                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 647                         "found name=\"%s\", id=%d\n",
 648                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 649         } else {
 650                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 651                         "not found\n", 0, 0, 0 );
 652         }
 653 #endif /* BACKSQL_TRACE */
 654
 655         return res;
 656 }
 657
 658 backsql_oc_map_rec *
 659 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 660 {
 661         backsql_oc_map_rec      tmp, *res;
 662
 663 #ifdef BACKSQL_TRACE
 664         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 665                 "searching for objectclass with name=\"%s\"\n",
 666                 oc_name->bv_val, 0, 0 );
 667 #endif /* BACKSQL_TRACE */
 668
 669         tmp.bom_oc = oc_bvfind( oc_name );
 670         if ( tmp.bom_oc == NULL ) {
 671                 return NULL;
 672         }
 673
 674         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 675 #ifdef BACKSQL_TRACE
 676         if ( res != NULL ) {
 677                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 678                         "found name=\"%s\", id=%d\n",
 679                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 680         } else {
 681                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 682                         "not found\n", 0, 0, 0 );
 683         }
 684 #endif /* BACKSQL_TRACE */
 685
 686         return res;
 687 }
 688
 689 backsql_oc_map_rec *
 690 backsql_id2oc( backsql_info *bi, unsigned long id )
 691 {
 692         backsql_oc_map_rec      tmp, *res;
 693
 694 #ifdef BACKSQL_TRACE
 695         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 696                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 697 #endif /* BACKSQL_TRACE */
 698
 699         tmp.bom_id = id;
 700         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 701                         backsql_cmp_oc_id );
 702
 703 #ifdef BACKSQL_TRACE
 704         if ( res != NULL ) {
 705                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 706                         "found name=\"%s\", id=%d\n",
 707                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 708         } else {
 709                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 710                         "not found\n", 0, 0, 0 );
 711         }
 712 #endif /* BACKSQL_TRACE */
 713
 714         return res;
 715 }
 716
 717 backsql_at_map_rec *
 718 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 719 {
 720         backsql_at_map_rec      tmp, *res;
 721
 722 #ifdef BACKSQL_TRACE
 723         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 724                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 725                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 726 #endif /* BACKSQL_TRACE */
 727
 728         tmp.bam_ad = ad;
 729         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 730                         backsql_cmp_attr );
 731
 732 #ifdef BACKSQL_TRACE
 733         if ( res != NULL ) {
 734                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 735                         "found name=\"%s\", sel_expr=\"%s\"\n",
 736                         res->bam_ad->ad_cname.bv_val,
 737                         res->bam_sel_expr.bv_val, 0 );
 738         } else {
 739                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 740                         "not found\n", 0, 0, 0 );
 741         }
 742 #endif /* BACKSQL_TRACE */
 743
 744         return res;
 745 }
 746
 747 /* attributeType inheritance */
 748 struct supad2at_t {
 749         backsql_at_map_rec      **ret;
 750         AttributeDescription    *ad;
 751         unsigned                n;
 752 };
 753
 754 #define SUPAD2AT_STOP   (-1)
 755
 756 static int
 757 supad2at_f( void *v_at, void *v_arg )
 758 {
 759         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 760         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 761
 762         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 763                 backsql_at_map_rec      **ret = NULL;
 764                 unsigned                i;
 765
 766                 /* if already listed, holler! (should never happen) */
 767                 if ( va->ret ) {
 768                         for ( i = 0; i < va->n; i++ ) {
 769                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 770                                         break;
 771                                 }
 772                         }
 773
 774                         if ( i < va->n ) {
 775                                 return 0;
 776                         }
 777                 }
 778
 779                 ret = ch_realloc( va->ret,
 780                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 781                 if ( ret == NULL ) {
 782                         ch_free( va->ret );
 783                         va->ret = NULL;
 784                         va->n = 0;
 785                         return SUPAD2AT_STOP;
 786                 }
 787
 788                 ret[ va->n ] = at;
 789                 va->n++;
 790                 ret[ va->n ] = NULL;
 791                 va->ret = ret;
 792         }
 793
 794         return 0;
 795 }
 796
 797 /*
 798  * stores in *pret a NULL terminated array of pointers
 799  * to backsql_at_map_rec whose attributeType is supad->ad_type
 800  * or derived from it
 801  */
 802 int
 803 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 804                 backsql_at_map_rec ***pret )
 805 {
 806         struct supad2at_t       va = { 0 };
 807         int                     rc;
 808
 809         assert( objclass != NULL );
 810         assert( supad != NULL );
 811         assert( pret != NULL );
 812
 813         *pret = NULL;
 814
 815         va.ad = supad;
 816
 817         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 818                         SUPAD2AT_STOP, AVL_INORDER );
 819         if ( rc == SUPAD2AT_STOP ) {
 820                 return -1;
 821         }
 822
 823         *pret = va.ret;
 824
 825         return 0;
 826 }
 827
 828 static void
 829 backsql_free_attr( void *v_at )
 830 {
 831         backsql_at_map_rec      *at = v_at;
 832
 833         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 834                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 835         ch_free( at->bam_sel_expr.bv_val );
 836         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 837                 ch_free( at->bam_from_tbls.bv_val );
 838         }
 839         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 840                 ch_free( at->bam_join_where.bv_val );
 841         }
 842         if ( at->bam_add_proc != NULL ) {
 843                 ch_free( at->bam_add_proc );
 844         }
 845         if ( at->bam_delete_proc != NULL ) {
 846                 ch_free( at->bam_delete_proc );
 847         }
 848         if ( at->bam_query != NULL ) {
 849                 ch_free( at->bam_query );
 850         }
 851
 852 #ifdef BACKSQL_COUNTQUERY
 853         if ( at->bam_countquery != NULL ) {
 854                 ch_free( at->bam_countquery );
 855         }
 856 #endif /* BACKSQL_COUNTQUERY */
 857
 858         /* TimesTen */
 859         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 860                 ch_free( at->bam_sel_expr_u.bv_val );
 861         }
 862
 863         if ( at->bam_next ) {
 864                 backsql_free_attr( at->bam_next );
 865         }
 866
 867         ch_free( at );
 868
 869         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 870 }
 871
 872 static void
 873 backsql_free_oc( void *v_oc )
 874 {
 875         backsql_oc_map_rec      *oc = v_oc;
 876
 877         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 878                         BACKSQL_OC_NAME( oc ), 0, 0 );
 879         avl_free( oc->bom_attrs, backsql_free_attr );
 880         ch_free( oc->bom_keytbl.bv_val );
 881         ch_free( oc->bom_keycol.bv_val );
 882         if ( oc->bom_create_proc != NULL ) {
 883                 ch_free( oc->bom_create_proc );
 884         }
 885         if ( oc->bom_create_keyval != NULL ) {
 886                 ch_free( oc->bom_create_keyval );
 887         }
 888         if ( oc->bom_delete_proc != NULL ) {
 889                 ch_free( oc->bom_delete_proc );
 890         }
 891         ch_free( oc );
 892
 893         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 894 }
 895
 896 int
 897 backsql_destroy_schema_map( backsql_info *bi )
 898 {
 899         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 900         avl_free( bi->sql_oc_by_oc, 0 );
 901         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 902         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 903         return 0;
 904 }
 905