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
 323                 Debug( LDAP_DEBUG_TRACE,
 324                         "attributeType:\n"
 325                         "\tname=\"%s\"\n"
 326                         "\tsel_expr=\"%s\"\n"
 327                         "\tfrom=\"%s\"\n",
 328                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 329                         at_row.cols[ 2 ] );
 330                 Debug( LDAP_DEBUG_TRACE,
 331                         "\tjoin_where=\"%s\"\n"
 332                         "\tadd_proc=\"%s\"\n"
 333                         "\tdelete_proc=\"%s\"\n",
 334                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 335                         at_row.cols[ 5 ]);
 336                 /* TimesTen */
 337                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 338                                 at_row.cols[ 8 ], 0, 0 );
 339                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 340                                 sizeof( backsql_at_map_rec ) );
 341                 rc = slap_str2ad( at_row.cols[ 0 ],
 342                                 &at_map->bam_ad, &text );
 343                 if ( rc != LDAP_SUCCESS ) {
 344                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 345                                 "attribute \"%s\" for objectClass \"%s\" "
 346                                 "is not defined in schema: %s\n",
 347                                 at_row.cols[ 0 ],
 348                                 BACKSQL_OC_NAME( oc_map ), text );
 349                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 350                         return BACKSQL_AVL_STOP;
 351                 }
 352
 353                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 354                 if ( at_row.value_len[ 8 ] < 0 ) {
 355                         BER_BVZERO( &at_map->bam_sel_expr_u );
 356
 357                 } else {
 358                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 359                                         &at_map->bam_sel_expr_u );
 360                 }
 361
 362                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 363                 backsql_merge_from_clause( bas->bas_bi, &bb, &bv );
 364                 at_map->bam_from_tbls = bb.bb_val;
 365                 if ( at_row.value_len[ 3 ] < 0 ) {
 366                         BER_BVZERO( &at_map->bam_join_where );
 367
 368                 } else {
 369                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 370                                         &at_map->bam_join_where );
 371                 }
 372                 at_map->bam_add_proc = NULL;
 373                 if ( at_row.value_len[ 4 ] > 0 ) {
 374                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 375                 }
 376                 at_map->bam_delete_proc = NULL;
 377                 if ( at_row.value_len[ 5 ] > 0 ) {
 378                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 379                 }
 380                 if ( lutil_atoix( &at_map->bam_param_order, at_row.cols[ 6 ], 0 ) != 0 ) {
 381                         /* error */
 382                 }
 383                 if ( lutil_atoix( &at_map->bam_expect_return, at_row.cols[ 7 ], 0 ) != 0 ) {
 384                         /* error */
 385                 }
 386                 backsql_make_attr_query( bas->bas_bi, oc_map, at_map );
 387                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 388                         "preconstructed query \"%s\"\n",
 389                         at_map->bam_query, 0, 0 );
 390                 at_map->bam_next = NULL;
 391                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 392                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 393                                         "duplicate attribute \"%s\" "
 394                                         "in objectClass \"%s\" map\n",
 395                                         at_map->bam_ad->ad_cname.bv_val,
 396                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 397                 }
 398
 399                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 400                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 401                 {
 402                         struct berbuf   bb = BB_NULL;
 403
 404                         backsql_strfcat_x( &bb, NULL, "bcbc",
 405                                         &bas->bas_bi->sql_upper_func,
 406                                         '(' /* ) */ ,
 407                                         &at_map->bam_sel_expr,
 408                                         /* ( */ ')' );
 409                         at_map->bam_sel_expr_u = bb.bb_val;
 410                 }
 411         }
 412         backsql_FreeRow( &at_row );
 413         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 414
 415         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 416                 "autoadding 'objectClass' and 'ref' mappings\n",
 417                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 418
 419         (void)backsql_add_sysmaps( bas->bas_bi, oc_map );
 420
 421         return BACKSQL_AVL_CONTINUE;
 422 }
 423
 424
 425 int
 426 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 427 {
 428         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 429         RETCODE                         rc;
 430         BACKSQL_ROW_NTS                 oc_row;
 431         unsigned long                   oc_id;
 432         backsql_oc_map_rec              *oc_map;
 433         struct backsql_attr_schema_info bas;
 434
 435         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 436
 437         /*
 438          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 439          */
 440         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 441                 rc = backsql_Prepare( dbh, &sth,
 442                                 backsql_check_dn_ru_query, 0 );
 443                 if ( rc == SQL_SUCCESS ) {
 444                         /* Yes, the field exists */
 445                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 446                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 447                                 "in the schema\n", 0, 0, 0 );
 448                 } else {
 449                         /* No such field exists */
 450                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 451                 }
 452
 453                 SQLFreeStmt( sth, SQL_DROP );
 454         }
 455
 456         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 457                         bi->sql_oc_query, 0, 0 );
 458
 459         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 460         if ( rc != SQL_SUCCESS ) {
 461                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 462                         "error preparing oc_query: \"%s\"\n",
 463                         bi->sql_oc_query, 0, 0 );
 464                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 465                 return LDAP_OTHER;
 466         }
 467
 468         rc = SQLExecute( sth );
 469         if ( rc != SQL_SUCCESS ) {
 470                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 471                         "error executing oc_query: \n", 0, 0, 0 );
 472                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 473                 return LDAP_OTHER;
 474         }
 475
 476         backsql_BindRowAsStrings( sth, &oc_row );
 477         rc = SQLFetch( sth );
 478         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 479                 int     colnum;
 480
 481                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 482                                 sizeof( backsql_oc_map_rec ) );
 483
 484                 if ( lutil_atoulx( &oc_map->bom_id, oc_row.cols[ 0 ], 0 ) != 0 ) {
 485                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 486                                 "unable to parse id=\"%s\"\n",
 487                                 oc_row.cols[ 0 ], 0, 0 );
 488                         return LDAP_OTHER;
 489                 }
 490
 491                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 492                 if ( oc_map->bom_oc == NULL ) {
 493                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 494                                 "objectClass \"%s\" is not defined in schema\n",
 495                                 oc_row.cols[ 1 ], 0, 0 );
 496                         return LDAP_OTHER;      /* undefined objectClass ? */
 497                 }
 498
 499                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 500                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 501                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 502                         : ch_strdup( oc_row.cols[ 4 ] );
 503
 504                 colnum = 5;
 505                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 506                         colnum = 6;
 507                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 508                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 509                 }
 510                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 511                         : ch_strdup( oc_row.cols[ colnum ] );
 512                 if ( lutil_atoix( &oc_map->bom_expect_return, oc_row.cols[ colnum + 1 ], 0 ) != 0 ) {
 513                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 514                                 "unable to parse expect_return=\"%s\" for objectClass \"%s\"\n",
 515                                 oc_row.cols[ colnum + 1 ], oc_row.cols[ 1 ], 0 );
 516                         return LDAP_OTHER;
 517                 }
 518
 519                 colnum += 2;
 520                 if ( ( oc_row.ncols > colnum ) &&
 521                                 ( oc_row.value_len[ colnum ] > 0 ) )
 522                 {
 523                         const char      *text;
 524
 525                         oc_map->bom_create_hint = NULL;
 526                         rc = slap_str2ad( oc_row.cols[ colnum ],
 527                                         &oc_map->bom_create_hint, &text );
 528                         if ( rc != SQL_SUCCESS ) {
 529                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 530                                                 "error matching "
 531                                                 "AttributeDescription %s "
 532                                                 "in create_hint: %s (%d)\n",
 533                                                 oc_row.cols[ colnum ],
 534                                                 text, rc );
 535                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 536                                                 sth, rc );
 537                                 return LDAP_OTHER;
 538                         }
 539                 }
 540
 541                 /*
 542                  * FIXME: first attempt to check for offending
 543                  * instructions in {create|delete}_proc
 544                  */
 545
 546                 oc_map->bom_attrs = NULL;
 547                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 548                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 549                                         "duplicate objectClass \"%s\" in objectClass map\n",
 550                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 551                         return LDAP_OTHER;
 552                 }
 553                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 554                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 555                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 556                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 557                         return LDAP_OTHER;
 558                 }
 559                 oc_id = oc_map->bom_id;
 560                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 561                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 562                         BACKSQL_OC_NAME( oc_map ),
 563                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 564                 if ( oc_map->bom_create_proc ) {
 565                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 566                                 oc_map->bom_create_proc, 0, 0 );
 567                 }
 568                 if ( oc_map->bom_create_keyval ) {
 569                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 570                                 oc_map->bom_create_keyval, 0, 0 );
 571                 }
 572                 if ( oc_map->bom_create_hint ) {
 573                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 574                                 oc_map->bom_create_hint->ad_cname.bv_val,
 575                                 0, 0 );
 576                 }
 577                 if ( oc_map->bom_delete_proc ) {
 578                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 579                                 oc_map->bom_delete_proc, 0, 0 );
 580                 }
 581                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 582                         "add=%d, del=%d; attributes:\n",
 583                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 584                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 585         }
 586
 587         backsql_FreeRow( &oc_row );
 588         SQLFreeStmt( sth, SQL_DROP );
 589
 590         /* prepare for attribute fetching */
 591         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 592                         bi->sql_at_query, 0, 0 );
 593
 594         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 595         if ( rc != SQL_SUCCESS ) {
 596                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 597                         "error preparing at_query: \"%s\"\n",
 598                         bi->sql_at_query, 0, 0 );
 599                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 600                 return LDAP_OTHER;
 601         }
 602
 603         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 604         if ( rc != SQL_SUCCESS ) {
 605                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 606                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 607                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 608                 SQLFreeStmt( sth, SQL_DROP );
 609                 return LDAP_OTHER;
 610         }
 611
 612         bas.bas_bi = bi;
 613         bas.bas_dbh = dbh;
 614         bas.bas_sth = sth;
 615         bas.bas_oc_id = &oc_id;
 616         bas.bas_rc = LDAP_SUCCESS;
 617
 618         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 619                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 620
 621         SQLFreeStmt( sth, SQL_DROP );
 622
 623         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 624
 625         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 626
 627         return bas.bas_rc;
 628 }
 629
 630 backsql_oc_map_rec *
 631 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 632 {
 633         backsql_oc_map_rec      tmp, *res;
 634
 635 #ifdef BACKSQL_TRACE
 636         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 637                 "searching for objectclass with name=\"%s\"\n",
 638                 oc->soc_cname.bv_val, 0, 0 );
 639 #endif /* BACKSQL_TRACE */
 640
 641         tmp.bom_oc = oc;
 642         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 643 #ifdef BACKSQL_TRACE
 644         if ( res != NULL ) {
 645                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 646                         "found name=\"%s\", id=%d\n",
 647                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 648         } else {
 649                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 650                         "not found\n", 0, 0, 0 );
 651         }
 652 #endif /* BACKSQL_TRACE */
 653
 654         return res;
 655 }
 656
 657 backsql_oc_map_rec *
 658 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 659 {
 660         backsql_oc_map_rec      tmp, *res;
 661
 662 #ifdef BACKSQL_TRACE
 663         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 664                 "searching for objectclass with name=\"%s\"\n",
 665                 oc_name->bv_val, 0, 0 );
 666 #endif /* BACKSQL_TRACE */
 667
 668         tmp.bom_oc = oc_bvfind( oc_name );
 669         if ( tmp.bom_oc == NULL ) {
 670                 return NULL;
 671         }
 672
 673         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 674 #ifdef BACKSQL_TRACE
 675         if ( res != NULL ) {
 676                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 677                         "found name=\"%s\", id=%d\n",
 678                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 679         } else {
 680                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 681                         "not found\n", 0, 0, 0 );
 682         }
 683 #endif /* BACKSQL_TRACE */
 684
 685         return res;
 686 }
 687
 688 backsql_oc_map_rec *
 689 backsql_id2oc( backsql_info *bi, unsigned long id )
 690 {
 691         backsql_oc_map_rec      tmp, *res;
 692
 693 #ifdef BACKSQL_TRACE
 694         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 695                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 696 #endif /* BACKSQL_TRACE */
 697
 698         tmp.bom_id = id;
 699         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 700                         backsql_cmp_oc_id );
 701
 702 #ifdef BACKSQL_TRACE
 703         if ( res != NULL ) {
 704                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 705                         "found name=\"%s\", id=%d\n",
 706                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 707         } else {
 708                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 709                         "not found\n", 0, 0, 0 );
 710         }
 711 #endif /* BACKSQL_TRACE */
 712
 713         return res;
 714 }
 715
 716 backsql_at_map_rec *
 717 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 718 {
 719         backsql_at_map_rec      tmp, *res;
 720
 721 #ifdef BACKSQL_TRACE
 722         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 723                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 724                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 725 #endif /* BACKSQL_TRACE */
 726
 727         tmp.bam_ad = ad;
 728         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 729                         backsql_cmp_attr );
 730
 731 #ifdef BACKSQL_TRACE
 732         if ( res != NULL ) {
 733                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 734                         "found name=\"%s\", sel_expr=\"%s\"\n",
 735                         res->bam_ad->ad_cname.bv_val,
 736                         res->bam_sel_expr.bv_val, 0 );
 737         } else {
 738                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 739                         "not found\n", 0, 0, 0 );
 740         }
 741 #endif /* BACKSQL_TRACE */
 742
 743         return res;
 744 }
 745
 746 /* attributeType inheritance */
 747 struct supad2at_t {
 748         backsql_at_map_rec      **ret;
 749         AttributeDescription    *ad;
 750         unsigned                n;
 751 };
 752
 753 #define SUPAD2AT_STOP   (-1)
 754
 755 static int
 756 supad2at_f( void *v_at, void *v_arg )
 757 {
 758         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 759         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 760
 761         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 762                 backsql_at_map_rec      **ret = NULL;
 763                 unsigned                i;
 764
 765                 /* if already listed, holler! (should never happen) */
 766                 if ( va->ret ) {
 767                         for ( i = 0; i < va->n; i++ ) {
 768                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 769                                         break;
 770                                 }
 771                         }
 772
 773                         if ( i < va->n ) {
 774                                 return 0;
 775                         }
 776                 }
 777
 778                 ret = ch_realloc( va->ret,
 779                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 780                 if ( ret == NULL ) {
 781                         ch_free( va->ret );
 782                         va->ret = NULL;
 783                         va->n = 0;
 784                         return SUPAD2AT_STOP;
 785                 }
 786
 787                 ret[ va->n ] = at;
 788                 va->n++;
 789                 ret[ va->n ] = NULL;
 790                 va->ret = ret;
 791         }
 792
 793         return 0;
 794 }
 795
 796 /*
 797  * stores in *pret a NULL terminated array of pointers
 798  * to backsql_at_map_rec whose attributeType is supad->ad_type
 799  * or derived from it
 800  */
 801 int
 802 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 803                 backsql_at_map_rec ***pret )
 804 {
 805         struct supad2at_t       va = { 0 };
 806         int                     rc;
 807
 808         assert( objclass != NULL );
 809         assert( supad != NULL );
 810         assert( pret != NULL );
 811
 812         *pret = NULL;
 813
 814         va.ad = supad;
 815
 816         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 817                         SUPAD2AT_STOP, AVL_INORDER );
 818         if ( rc == SUPAD2AT_STOP ) {
 819                 return -1;
 820         }
 821
 822         *pret = va.ret;
 823
 824         return 0;
 825 }
 826
 827 static void
 828 backsql_free_attr( void *v_at )
 829 {
 830         backsql_at_map_rec      *at = v_at;
 831
 832         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 833                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 834         ch_free( at->bam_sel_expr.bv_val );
 835         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 836                 ch_free( at->bam_from_tbls.bv_val );
 837         }
 838         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 839                 ch_free( at->bam_join_where.bv_val );
 840         }
 841         if ( at->bam_add_proc != NULL ) {
 842                 ch_free( at->bam_add_proc );
 843         }
 844         if ( at->bam_delete_proc != NULL ) {
 845                 ch_free( at->bam_delete_proc );
 846         }
 847         if ( at->bam_query != NULL ) {
 848                 ch_free( at->bam_query );
 849         }
 850
 851 #ifdef BACKSQL_COUNTQUERY
 852         if ( at->bam_countquery != NULL ) {
 853                 ch_free( at->bam_countquery );
 854         }
 855 #endif /* BACKSQL_COUNTQUERY */
 856
 857         /* TimesTen */
 858         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 859                 ch_free( at->bam_sel_expr_u.bv_val );
 860         }
 861
 862         if ( at->bam_next ) {
 863                 backsql_free_attr( at->bam_next );
 864         }
 865
 866         ch_free( at );
 867
 868         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 869 }
 870
 871 static void
 872 backsql_free_oc( void *v_oc )
 873 {
 874         backsql_oc_map_rec      *oc = v_oc;
 875
 876         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 877                         BACKSQL_OC_NAME( oc ), 0, 0 );
 878         avl_free( oc->bom_attrs, backsql_free_attr );
 879         ch_free( oc->bom_keytbl.bv_val );
 880         ch_free( oc->bom_keycol.bv_val );
 881         if ( oc->bom_create_proc != NULL ) {
 882                 ch_free( oc->bom_create_proc );
 883         }
 884         if ( oc->bom_create_keyval != NULL ) {
 885                 ch_free( oc->bom_create_keyval );
 886         }
 887         if ( oc->bom_delete_proc != NULL ) {
 888                 ch_free( oc->bom_delete_proc );
 889         }
 890         ch_free( oc );
 891
 892         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 893 }
 894
 895 int
 896 backsql_destroy_schema_map( backsql_info *bi )
 897 {
 898         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 899         avl_free( bi->sql_oc_by_oc, 0 );
 900         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 901         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 902         return 0;
 903 }
 904