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 1999-2005 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 "slap.h"
  31 #include "proto-sql.h"
  32
  33 #define BACKSQL_DUPLICATE       (-1)
  34
  35 /* NOTE: by default, cannot just compare pointers because
  36  * objectClass/attributeType order would be machine-dependent
  37  * (and tests would fail!); however, if you don't want to run
  38  * tests, or see attributeTypes written in the same order
  39  * they are defined, define */
  40 /* #undef BACKSQL_USE_PTR_CMP */
  41
  42 /*
  43  * Uses the pointer to the ObjectClass structure
  44  */
  45 static int
  46 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  47 {
  48         const backsql_oc_map_rec        *m1 = v_m1,
  49                                         *m2 = v_m2;
  50
  51 #ifdef BACKSQL_USE_PTR_CMP
  52         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  53 #else /* ! BACKSQL_USE_PTR_CMP */
  54         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  55 #endif /* ! BACKSQL_USE_PTR_CMP */
  56 }
  57
  58 static int
  59 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  60 {
  61         const backsql_oc_map_rec        *m1 = v_m1,
  62                                         *m2 = v_m2;
  63
  64         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  65 }
  66
  67 /*
  68  * Uses the pointer to the AttributeDescription structure
  69  */
  70 static int
  71 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  72 {
  73         const backsql_at_map_rec        *m1 = v_m1,
  74                                         *m2 = v_m2;
  75
  76 #ifdef BACKSQL_USE_PTR_CMP
  77         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  78 #else /* ! BACKSQL_USE_PTR_CMP */
  79         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  80 #endif /* ! BACKSQL_USE_PTR_CMP */
  81 }
  82
  83 int
  84 backsql_dup_attr( void *v_m1, void *v_m2 )
  85 {
  86         backsql_at_map_rec              *m1 = v_m1,
  87                                         *m2 = v_m2;
  88
  89         assert( m1->bam_ad == m2->bam_ad );
  90
  91         /* duplicate definitions of attributeTypes are appended;
  92          * this allows to define multiple rules for the same
  93          * attributeType.  Use with care! */
  94         for ( ; m1->bam_next ; m1 = m1->bam_next );
  95         m1->bam_next = m2;
  96         m2->bam_next = NULL;
  97
  98         return BACKSQL_DUPLICATE;
  99 }
 100
 101 static int
 102 backsql_make_attr_query(
 103         backsql_info            *bi,
 104         backsql_oc_map_rec      *oc_map,
 105         backsql_at_map_rec      *at_map )
 106 {
 107         struct berbuf   bb = BB_NULL;
 108
 109         backsql_strfcat( &bb, "lblbbbblblbcbl",
 110                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 111                         &at_map->bam_sel_expr,
 112                         (ber_len_t)STRLENOF( " " ), " ",
 113                         &bi->sql_aliasing,
 114                         &bi->sql_aliasing_quote,
 115                         &at_map->bam_ad->ad_cname,
 116                         &bi->sql_aliasing_quote,
 117                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 118                         &at_map->bam_from_tbls,
 119                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 120                         &oc_map->bom_keytbl,
 121                         '.',
 122                         &oc_map->bom_keycol,
 123                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 124
 125         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 126                 backsql_strfcat( &bb, "lb",
 127                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 128                                 &at_map->bam_join_where );
 129         }
 130
 131         backsql_strfcat( &bb, "lbbb",
 132                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 133                         &bi->sql_aliasing_quote,
 134                         &at_map->bam_ad->ad_cname,
 135                         &bi->sql_aliasing_quote );
 136
 137         at_map->bam_query = bb.bb_val.bv_val;
 138
 139 #ifdef BACKSQL_COUNTQUERY
 140         /* Query to count how many rows will be returned. */
 141         BER_BVZERO( &bb.bb_val );
 142         bb.bb_len = 0;
 143         backsql_strfcat( &bb, "lblbcbl",
 144                         (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ),
 145                                 "SELECT COUNT(*) FROM ",
 146                         &at_map->bam_from_tbls,
 147                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 148                         &oc_map->bom_keytbl,
 149                         '.',
 150                         &oc_map->bom_keycol,
 151                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 152
 153         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 154                 backsql_strfcat( &bb, "lb",
 155                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 156                                 &at_map->bam_join_where );
 157         }
 158
 159         at_map->bam_countquery = bb.bb_val.bv_val;
 160 #endif /* BACKSQL_COUNTQUERY */
 161
 162         return 0;
 163 }
 164
 165 static int
 166 backsql_add_sysmaps( backsql_info *bi, backsql_oc_map_rec *oc_map )
 167 {
 168         backsql_at_map_rec      *at_map;
 169         char                    s[] = "+9223372036854775807L";
 170         struct berval           sbv;
 171         struct berbuf           bb;
 172
 173         sbv.bv_val = s;
 174         sbv.bv_len = snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 175
 176         /* extra objectClasses */
 177         at_map = (backsql_at_map_rec *)ch_calloc(1,
 178                         sizeof( backsql_at_map_rec ) );
 179         at_map->bam_ad = slap_schema.si_ad_objectClass;
 180         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 181                         &at_map->bam_sel_expr );
 182         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 183                         &at_map->bam_from_tbls );
 184
 185         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 186         bb.bb_val = at_map->bam_from_tbls;
 187         backsql_merge_from_clause( bi, &bb, &oc_map->bom_keytbl );
 188         at_map->bam_from_tbls = bb.bb_val;
 189
 190         BER_BVZERO( &bb.bb_val );
 191         bb.bb_len = 0;
 192         backsql_strfcat( &bb, "lbcblb",
 193                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 194                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 195                         &oc_map->bom_keytbl,
 196                         '.',
 197                         &oc_map->bom_keycol,
 198                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 199                                 " and ldap_entries.oc_map_id=",
 200                         &sbv );
 201         at_map->bam_join_where = bb.bb_val;
 202
 203         at_map->bam_oc = oc_map->bom_oc;
 204
 205         at_map->bam_add_proc = NULL;
 206         {
 207                 char    tmp[] =
 208                         "INSERT INTO ldap_entry_objclasses "
 209                         "(entry_id,oc_name) VALUES "
 210                         "((SELECT id FROM ldap_entries "
 211                         "WHERE oc_map_id="
 212                         "18446744073709551615UL "       /* 64 bit ULONG */
 213                         "AND keyval=?),?)";
 214                 snprintf( tmp, sizeof(tmp),
 215                         "INSERT INTO ldap_entry_objclasses "
 216                         "(entry_id,oc_name) VALUES "
 217                         "((SELECT id FROM ldap_entries "
 218                         "WHERE oc_map_id=%lu "
 219                         "AND keyval=?),?)", oc_map->bom_id );
 220                 at_map->bam_add_proc = ch_strdup( tmp );
 221         }
 222
 223         at_map->bam_delete_proc = NULL;
 224         {
 225                 char    tmp[] =
 226                         "DELETE FROM ldap_entry_objclasses "
 227                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 228                         "WHERE oc_map_id="
 229                         "18446744073709551615UL "       /* 64 bit ULONG */
 230                         "AND keyval=?) AND oc_name=?";
 231                 snprintf( tmp, sizeof(tmp),
 232                         "DELETE FROM ldap_entry_objclasses "
 233                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 234                         "WHERE oc_map_id=%lu"
 235                         "AND keyval=?) AND oc_name=?",
 236                         oc_map->bom_id );
 237                 at_map->bam_delete_proc = ch_strdup( tmp );
 238         }
 239
 240         at_map->bam_param_order = 0;
 241         at_map->bam_expect_return = 0;
 242         at_map->bam_next = NULL;
 243
 244         backsql_make_attr_query( bi, oc_map, at_map );
 245         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 246                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 247                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 248                                 at_map->bam_ad->ad_cname.bv_val,
 249                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 250         }
 251
 252         /* FIXME: we need to correct the objectClass join_where
 253          * after the attribute query is built */
 254         ch_free( at_map->bam_join_where.bv_val );
 255         BER_BVZERO( &bb.bb_val );
 256         bb.bb_len = 0;
 257         backsql_strfcat( &bb, "lbcblb",
 258                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 259                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 260                         &oc_map->bom_keytbl,
 261                         '.',
 262                         &oc_map->bom_keycol,
 263                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 264                                 " AND ldap_entries.oc_map_id=",
 265                         &sbv );
 266         at_map->bam_join_where = bb.bb_val;
 267
 268         return 1;
 269 }
 270
 271 struct backsql_attr_schema_info {
 272         backsql_info    *bas_bi;
 273         SQLHDBC         bas_dbh;
 274         SQLHSTMT        bas_sth;
 275         unsigned long   *bas_oc_id;
 276         int             bas_rc;
 277 };
 278
 279 static int
 280 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 281 {
 282         RETCODE                         rc;
 283         BACKSQL_ROW_NTS                 at_row;
 284         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 285         backsql_at_map_rec              *at_map;
 286         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 287
 288         /* bas->bas_oc_id has been bound to bas->bas_sth */
 289         *bas->bas_oc_id = oc_map->bom_id;
 290
 291         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 292                 "executing at_query\n"
 293                 "    \"%s\"\n"
 294                 "    for objectClass \"%s\"\n"
 295                 "    with param oc_id=\"%lu\"\n",
 296                 bas->bas_bi->sql_at_query,
 297                 BACKSQL_OC_NAME( oc_map ),
 298                 *bas->bas_oc_id );
 299
 300         rc = SQLExecute( bas->bas_sth );
 301         if ( rc != SQL_SUCCESS ) {
 302                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 303                         "error executing at_query\n"
 304                         "    \"%s\"\n"
 305                         "    for objectClass \"%s\"\n"
 306                         "    with param oc_id=\"%lu\"\n",
 307                         bas->bas_bi->sql_at_query,
 308                         BACKSQL_OC_NAME( oc_map ),
 309                         *bas->bas_oc_id );
 310                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 311                                 bas->bas_dbh, bas->bas_sth, rc );
 312                 bas->bas_rc = LDAP_OTHER;
 313                 return BACKSQL_AVL_STOP;
 314         }
 315
 316         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 317         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 318                 const char      *text = NULL;
 319                 char            *next = 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                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 381                                 &next, 0 );
 382                 if ( next == at_row.cols[ 6 ] || next[0] != '\0' ) {
 383                         /* error */
 384                 }
 385                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 386                                 &next, 0 );
 387                 if ( next == at_row.cols[ 7 ] || next[0] != '\0' ) {
 388                         /* error */
 389                 }
 390                 backsql_make_attr_query( bas->bas_bi, oc_map, at_map );
 391                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 392                         "preconstructed query \"%s\"\n",
 393                         at_map->bam_query, 0, 0 );
 394                 at_map->bam_next = NULL;
 395                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 396                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 397                                         "duplicate attribute \"%s\" "
 398                                         "in objectClass \"%s\" map\n",
 399                                         at_map->bam_ad->ad_cname.bv_val,
 400                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 401                 }
 402
 403                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 404                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 405                 {
 406                         struct berbuf   bb = BB_NULL;
 407
 408                         backsql_strfcat( &bb, "bcbc",
 409                                         &bas->bas_bi->sql_upper_func,
 410                                         '(' /* ) */ ,
 411                                         &at_map->bam_sel_expr,
 412                                         /* ( */ ')' );
 413                         at_map->bam_sel_expr_u = bb.bb_val;
 414                 }
 415         }
 416         backsql_FreeRow( &at_row );
 417         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 418
 419         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 420                 "autoadding 'objectClass' and 'ref' mappings\n",
 421                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 422
 423         (void)backsql_add_sysmaps( bas->bas_bi, oc_map );
 424
 425         return BACKSQL_AVL_CONTINUE;
 426 }
 427
 428
 429 int
 430 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 431 {
 432         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 433         RETCODE                         rc;
 434         BACKSQL_ROW_NTS                 oc_row;
 435         unsigned long                   oc_id;
 436         backsql_oc_map_rec              *oc_map;
 437         struct backsql_attr_schema_info bas;
 438
 439         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 440
 441         /*
 442          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 443          */
 444         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 445                 rc = backsql_Prepare( dbh, &sth,
 446                                 backsql_check_dn_ru_query, 0 );
 447                 if ( rc == SQL_SUCCESS ) {
 448                         /* Yes, the field exists */
 449                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 450                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 451                                 "in the schema\n", 0, 0, 0 );
 452                 } else {
 453                         /* No such field exists */
 454                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 455                 }
 456
 457                 SQLFreeStmt( sth, SQL_DROP );
 458         }
 459
 460         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 461                         bi->sql_oc_query, 0, 0 );
 462
 463         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 464         if ( rc != SQL_SUCCESS ) {
 465                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 466                         "error preparing oc_query: \"%s\"\n",
 467                         bi->sql_oc_query, 0, 0 );
 468                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 469                 return LDAP_OTHER;
 470         }
 471
 472         rc = SQLExecute( sth );
 473         if ( rc != SQL_SUCCESS ) {
 474                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 475                         "error executing oc_query: \n", 0, 0, 0 );
 476                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 477                 return LDAP_OTHER;
 478         }
 479
 480         backsql_BindRowAsStrings( sth, &oc_row );
 481         rc = SQLFetch( sth );
 482         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 483                 int     colnum;
 484
 485                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 486                                 sizeof( backsql_oc_map_rec ) );
 487
 488                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 489
 490                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 491                 if ( oc_map->bom_oc == NULL ) {
 492                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 493                                 "objectClass \"%s\" is not defined in schema\n",
 494                                 oc_row.cols[ 1 ], 0, 0 );
 495                         return LDAP_OTHER;      /* undefined objectClass ? */
 496                 }
 497
 498                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 499                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 500                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 501                         : ch_strdup( oc_row.cols[ 4 ] );
 502
 503                 colnum = 5;
 504                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 505                         colnum = 6;
 506                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 507                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 508                 }
 509                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 510                         : ch_strdup( oc_row.cols[ colnum ] );
 511                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 512                                 NULL, 0 );
 513
 514                 colnum += 2;
 515                 if ( ( oc_row.ncols > colnum ) &&
 516                                 ( oc_row.value_len[ colnum ] > 0 ) )
 517                 {
 518                         const char      *text;
 519
 520                         oc_map->bom_create_hint = NULL;
 521                         rc = slap_str2ad( oc_row.cols[ colnum ],
 522                                         &oc_map->bom_create_hint, &text );
 523                         if ( rc != SQL_SUCCESS ) {
 524                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 525                                                 "error matching "
 526                                                 "AttributeDescription %s "
 527                                                 "in create_hint: %s (%d)\n",
 528                                                 oc_row.cols[ colnum ],
 529                                                 text, rc );
 530                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 531                                                 sth, rc );
 532                                 return LDAP_OTHER;
 533                         }
 534                 }
 535
 536                 /*
 537                  * FIXME: first attempt to check for offending
 538                  * instructions in {create|delete}_proc
 539                  */
 540
 541                 oc_map->bom_attrs = NULL;
 542                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 543                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 544                                         "duplicate objectClass \"%s\" in objectClass map\n",
 545                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 546                         return LDAP_OTHER;
 547                 }
 548                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 549                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 550                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 551                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 552                         return LDAP_OTHER;
 553                 }
 554                 oc_id = oc_map->bom_id;
 555                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 556                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 557                         BACKSQL_OC_NAME( oc_map ),
 558                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 559                 if ( oc_map->bom_create_proc ) {
 560                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 561                                 oc_map->bom_create_proc, 0, 0 );
 562                 }
 563                 if ( oc_map->bom_create_keyval ) {
 564                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 565                                 oc_map->bom_create_keyval, 0, 0 );
 566                 }
 567                 if ( oc_map->bom_create_hint ) {
 568                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 569                                 oc_map->bom_create_hint->ad_cname.bv_val,
 570                                 0, 0 );
 571                 }
 572                 if ( oc_map->bom_delete_proc ) {
 573                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 574                                 oc_map->bom_delete_proc, 0, 0 );
 575                 }
 576                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 577                         "add=%d, del=%d; attributes:\n",
 578                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 579                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 580         }
 581
 582         backsql_FreeRow( &oc_row );
 583         SQLFreeStmt( sth, SQL_DROP );
 584
 585         /* prepare for attribute fetching */
 586         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 587                         bi->sql_at_query, 0, 0 );
 588
 589         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 590         if ( rc != SQL_SUCCESS ) {
 591                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 592                         "error preparing at_query: \"%s\"\n",
 593                         bi->sql_at_query, 0, 0 );
 594                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 595                 return LDAP_OTHER;
 596         }
 597
 598         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 599         if ( rc != SQL_SUCCESS ) {
 600                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 601                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 602                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 603                 SQLFreeStmt( sth, SQL_DROP );
 604                 return LDAP_OTHER;
 605         }
 606
 607         bas.bas_bi = bi;
 608         bas.bas_dbh = dbh;
 609         bas.bas_sth = sth;
 610         bas.bas_oc_id = &oc_id;
 611         bas.bas_rc = LDAP_SUCCESS;
 612
 613         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 614                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 615
 616         SQLFreeStmt( sth, SQL_DROP );
 617
 618         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 619
 620         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 621
 622         return bas.bas_rc;
 623 }
 624
 625 backsql_oc_map_rec *
 626 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 627 {
 628         backsql_oc_map_rec      tmp, *res;
 629
 630 #ifdef BACKSQL_TRACE
 631         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 632                 "searching for objectclass with name=\"%s\"\n",
 633                 oc->soc_cname.bv_val, 0, 0 );
 634 #endif /* BACKSQL_TRACE */
 635
 636         tmp.bom_oc = oc;
 637         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 638 #ifdef BACKSQL_TRACE
 639         if ( res != NULL ) {
 640                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 641                         "found name=\"%s\", id=%d\n",
 642                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 643         } else {
 644                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 645                         "not found\n", 0, 0, 0 );
 646         }
 647 #endif /* BACKSQL_TRACE */
 648
 649         return res;
 650 }
 651
 652 backsql_oc_map_rec *
 653 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 654 {
 655         backsql_oc_map_rec      tmp, *res;
 656
 657 #ifdef BACKSQL_TRACE
 658         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 659                 "searching for objectclass with name=\"%s\"\n",
 660                 oc_name->bv_val, 0, 0 );
 661 #endif /* BACKSQL_TRACE */
 662
 663         tmp.bom_oc = oc_bvfind( oc_name );
 664         if ( tmp.bom_oc == NULL ) {
 665                 return NULL;
 666         }
 667
 668         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 669 #ifdef BACKSQL_TRACE
 670         if ( res != NULL ) {
 671                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 672                         "found name=\"%s\", id=%d\n",
 673                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 674         } else {
 675                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 676                         "not found\n", 0, 0, 0 );
 677         }
 678 #endif /* BACKSQL_TRACE */
 679
 680         return res;
 681 }
 682
 683 backsql_oc_map_rec *
 684 backsql_id2oc( backsql_info *bi, unsigned long id )
 685 {
 686         backsql_oc_map_rec      tmp, *res;
 687
 688 #ifdef BACKSQL_TRACE
 689         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 690                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 691 #endif /* BACKSQL_TRACE */
 692
 693         tmp.bom_id = id;
 694         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 695                         backsql_cmp_oc_id );
 696
 697 #ifdef BACKSQL_TRACE
 698         if ( res != NULL ) {
 699                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 700                         "found name=\"%s\", id=%d\n",
 701                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 702         } else {
 703                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 704                         "not found\n", 0, 0, 0 );
 705         }
 706 #endif /* BACKSQL_TRACE */
 707
 708         return res;
 709 }
 710
 711 backsql_at_map_rec *
 712 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 713 {
 714         backsql_at_map_rec      tmp, *res;
 715
 716 #ifdef BACKSQL_TRACE
 717         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 718                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 719                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 720 #endif /* BACKSQL_TRACE */
 721
 722         tmp.bam_ad = ad;
 723         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 724                         backsql_cmp_attr );
 725
 726 #ifdef BACKSQL_TRACE
 727         if ( res != NULL ) {
 728                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 729                         "found name=\"%s\", sel_expr=\"%s\"\n",
 730                         res->bam_ad->ad_cname.bv_val,
 731                         res->bam_sel_expr.bv_val, 0 );
 732         } else {
 733                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 734                         "not found\n", 0, 0, 0 );
 735         }
 736 #endif /* BACKSQL_TRACE */
 737
 738         return res;
 739 }
 740
 741 /* attributeType inheritance */
 742 struct supad2at_t {
 743         backsql_at_map_rec      **ret;
 744         AttributeDescription    *ad;
 745         unsigned                n;
 746 };
 747
 748 #define SUPAD2AT_STOP   (-1)
 749
 750 static int
 751 supad2at_f( void *v_at, void *v_arg )
 752 {
 753         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 754         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 755
 756         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 757                 backsql_at_map_rec      **ret = NULL;
 758                 unsigned                i;
 759
 760                 /* if already listed, holler! (should never happen) */
 761                 if ( va->ret ) {
 762                         for ( i = 0; i < va->n; i++ ) {
 763                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 764                                         break;
 765                                 }
 766                         }
 767
 768                         if ( i < va->n ) {
 769                                 return 0;
 770                         }
 771                 }
 772
 773                 ret = ch_realloc( va->ret,
 774                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 775                 if ( ret == NULL ) {
 776                         ch_free( va->ret );
 777                         va->ret = NULL;
 778                         va->n = 0;
 779                         return SUPAD2AT_STOP;
 780                 }
 781
 782                 ret[ va->n ] = at;
 783                 va->n++;
 784                 ret[ va->n ] = NULL;
 785                 va->ret = ret;
 786         }
 787
 788         return 0;
 789 }
 790
 791 /*
 792  * stores in *pret a NULL terminated array of pointers
 793  * to backsql_at_map_rec whose attributeType is supad->ad_type
 794  * or derived from it
 795  */
 796 int
 797 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 798                 backsql_at_map_rec ***pret )
 799 {
 800         struct supad2at_t       va = { 0 };
 801         int                     rc;
 802
 803         assert( objclass != NULL );
 804         assert( supad != NULL );
 805         assert( pret != NULL );
 806
 807         *pret = NULL;
 808
 809         va.ad = supad;
 810
 811         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 812                         SUPAD2AT_STOP, AVL_INORDER );
 813         if ( rc == SUPAD2AT_STOP ) {
 814                 return -1;
 815         }
 816
 817         *pret = va.ret;
 818
 819         return 0;
 820 }
 821
 822 static void
 823 backsql_free_attr( void *v_at )
 824 {
 825         backsql_at_map_rec      *at = v_at;
 826
 827         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 828                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 829         ch_free( at->bam_sel_expr.bv_val );
 830         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 831                 ch_free( at->bam_from_tbls.bv_val );
 832         }
 833         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 834                 ch_free( at->bam_join_where.bv_val );
 835         }
 836         if ( at->bam_add_proc != NULL ) {
 837                 ch_free( at->bam_add_proc );
 838         }
 839         if ( at->bam_delete_proc != NULL ) {
 840                 ch_free( at->bam_delete_proc );
 841         }
 842         if ( at->bam_query != NULL ) {
 843                 ch_free( at->bam_query );
 844         }
 845
 846 #ifdef BACKSQL_COUNTQUERY
 847         if ( at->bam_countquery != NULL ) {
 848                 ch_free( at->bam_countquery );
 849         }
 850 #endif /* BACKSQL_COUNTQUERY */
 851
 852         /* TimesTen */
 853         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 854                 ch_free( at->bam_sel_expr_u.bv_val );
 855         }
 856
 857         if ( at->bam_next ) {
 858                 backsql_free_attr( at->bam_next );
 859         }
 860
 861         ch_free( at );
 862
 863         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 864 }
 865
 866 static void
 867 backsql_free_oc( void *v_oc )
 868 {
 869         backsql_oc_map_rec      *oc = v_oc;
 870
 871         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 872                         BACKSQL_OC_NAME( oc ), 0, 0 );
 873         avl_free( oc->bom_attrs, backsql_free_attr );
 874         ch_free( oc->bom_keytbl.bv_val );
 875         ch_free( oc->bom_keycol.bv_val );
 876         if ( oc->bom_create_proc != NULL ) {
 877                 ch_free( oc->bom_create_proc );
 878         }
 879         if ( oc->bom_create_keyval != NULL ) {
 880                 ch_free( oc->bom_create_keyval );
 881         }
 882         if ( oc->bom_delete_proc != NULL ) {
 883                 ch_free( oc->bom_delete_proc );
 884         }
 885         ch_free( oc );
 886
 887         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 888 }
 889
 890 int
 891 backsql_destroy_schema_map( backsql_info *bi )
 892 {
 893         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 894         avl_free( bi->sql_oc_by_oc, 0 );
 895         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 896         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 897         return 0;
 898 }
 899