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 1999-2007 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         if ( slap_ad_is_binary( m1->bam_ad ) || slap_ad_is_binary( m2->bam_ad ) ) {
  78 #ifdef BACKSQL_USE_PTR_CMP
  79                 return SLAP_PTRCMP( m1->bam_ad->ad_type, m2->bam_ad->ad_type );
  80 #else /* ! BACKSQL_USE_PTR_CMP */
  81                 return ber_bvcmp( &m1->bam_ad->ad_type->sat_cname, &m2->bam_ad->ad_type->sat_cname );
  82 #endif /* ! BACKSQL_USE_PTR_CMP */
  83         }
  84
  85 #ifdef BACKSQL_USE_PTR_CMP
  86         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  87 #else /* ! BACKSQL_USE_PTR_CMP */
  88         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  89 #endif /* ! BACKSQL_USE_PTR_CMP */
  90 }
  91
  92 int
  93 backsql_dup_attr( void *v_m1, void *v_m2 )
  94 {
  95         backsql_at_map_rec              *m1 = v_m1,
  96                                         *m2 = v_m2;
  97
  98         if ( slap_ad_is_binary( m1->bam_ad ) || slap_ad_is_binary( m2->bam_ad ) ) {
  99 #ifdef BACKSQL_USE_PTR_CMP
 100                 assert( m1->bam_ad->ad_type == m2->bam_ad->ad_type );
 101 #else /* ! BACKSQL_USE_PTR_CMP */
 102                 assert( ber_bvcmp( &m1->bam_ad->ad_type->sat_cname, &m2->bam_ad->ad_type->sat_cname ) == 0 );
 103 #endif /* ! BACKSQL_USE_PTR_CMP */
 104
 105         } else {
 106 #ifdef BACKSQL_USE_PTR_CMP
 107                 assert( m1->bam_ad == m2->bam_ad );
 108 #else /* ! BACKSQL_USE_PTR_CMP */
 109                 assert( ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname ) == 0 );
 110 #endif /* ! BACKSQL_USE_PTR_CMP */
 111         }
 112
 113         /* duplicate definitions of attributeTypes are appended;
 114          * this allows to define multiple rules for the same
 115          * attributeType.  Use with care! */
 116         for ( ; m1->bam_next ; m1 = m1->bam_next );
 117
 118         m1->bam_next = m2;
 119         m2->bam_next = NULL;
 120
 121         return BACKSQL_DUPLICATE;
 122 }
 123
 124 static int
 125 backsql_make_attr_query(
 126         backsql_info            *bi,
 127         backsql_oc_map_rec      *oc_map,
 128         backsql_at_map_rec      *at_map )
 129 {
 130         struct berbuf   bb = BB_NULL;
 131
 132         backsql_strfcat_x( &bb, NULL, "lblbbbblblbcbl",
 133                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 134                         &at_map->bam_sel_expr,
 135                         (ber_len_t)STRLENOF( " " ), " ",
 136                         &bi->sql_aliasing,
 137                         &bi->sql_aliasing_quote,
 138                         &at_map->bam_ad->ad_cname,
 139                         &bi->sql_aliasing_quote,
 140                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 141                         &at_map->bam_from_tbls,
 142                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 143                         &oc_map->bom_keytbl,
 144                         '.',
 145                         &oc_map->bom_keycol,
 146                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 147
 148         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 149                 backsql_strfcat_x( &bb, NULL, "lb",
 150                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 151                                 &at_map->bam_join_where );
 152         }
 153
 154         backsql_strfcat_x( &bb, NULL, "lbbb",
 155                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 156                         &bi->sql_aliasing_quote,
 157                         &at_map->bam_ad->ad_cname,
 158                         &bi->sql_aliasing_quote );
 159
 160         at_map->bam_query = bb.bb_val.bv_val;
 161
 162 #ifdef BACKSQL_COUNTQUERY
 163         /* Query to count how many rows will be returned. */
 164         BER_BVZERO( &bb.bb_val );
 165         bb.bb_len = 0;
 166         backsql_strfcat_x( &bb, NULL, "lblbcbl",
 167                         (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ),
 168                                 "SELECT COUNT(*) FROM ",
 169                         &at_map->bam_from_tbls,
 170                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 171                         &oc_map->bom_keytbl,
 172                         '.',
 173                         &oc_map->bom_keycol,
 174                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 175
 176         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 177                 backsql_strfcat_x( &bb, NULL, "lb",
 178                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 179                                 &at_map->bam_join_where );
 180         }
 181
 182         at_map->bam_countquery = bb.bb_val.bv_val;
 183 #endif /* BACKSQL_COUNTQUERY */
 184
 185         return 0;
 186 }
 187
 188 static int
 189 backsql_add_sysmaps( backsql_info *bi, backsql_oc_map_rec *oc_map )
 190 {
 191         backsql_at_map_rec      *at_map;
 192         char                    s[] = "+9223372036854775807L";
 193         struct berval           sbv;
 194         struct berbuf           bb;
 195
 196         sbv.bv_val = s;
 197         sbv.bv_len = snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 198
 199         /* extra objectClasses */
 200         at_map = (backsql_at_map_rec *)ch_calloc(1,
 201                         sizeof( backsql_at_map_rec ) );
 202         at_map->bam_ad = slap_schema.si_ad_objectClass;
 203         at_map->bam_true_ad = slap_schema.si_ad_objectClass;
 204         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 205                         &at_map->bam_sel_expr );
 206         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 207                         &at_map->bam_from_tbls );
 208
 209         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 210         bb.bb_val = at_map->bam_from_tbls;
 211         backsql_merge_from_clause( bi, &bb, &oc_map->bom_keytbl );
 212         at_map->bam_from_tbls = bb.bb_val;
 213
 214         BER_BVZERO( &bb.bb_val );
 215         bb.bb_len = 0;
 216         backsql_strfcat_x( &bb, NULL, "lbcblb",
 217                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 218                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 219                         &oc_map->bom_keytbl,
 220                         '.',
 221                         &oc_map->bom_keycol,
 222                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 223                                 " and ldap_entries.oc_map_id=",
 224                         &sbv );
 225         at_map->bam_join_where = bb.bb_val;
 226
 227         at_map->bam_oc = oc_map->bom_oc;
 228
 229         at_map->bam_add_proc = NULL;
 230         {
 231                 char    tmp[] =
 232                         "INSERT INTO ldap_entry_objclasses "
 233                         "(entry_id,oc_name) VALUES "
 234                         "((SELECT id FROM ldap_entries "
 235                         "WHERE oc_map_id="
 236                         "18446744073709551615UL "       /* 64 bit ULONG */
 237                         "AND keyval=?),?)";
 238                 snprintf( tmp, sizeof(tmp),
 239                         "INSERT INTO ldap_entry_objclasses "
 240                         "(entry_id,oc_name) VALUES "
 241                         "((SELECT id FROM ldap_entries "
 242                         "WHERE oc_map_id=%lu "
 243                         "AND keyval=?),?)", oc_map->bom_id );
 244                 at_map->bam_add_proc = ch_strdup( tmp );
 245         }
 246
 247         at_map->bam_delete_proc = NULL;
 248         {
 249                 char    tmp[] =
 250                         "DELETE FROM ldap_entry_objclasses "
 251                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 252                         "WHERE oc_map_id="
 253                         "18446744073709551615UL "       /* 64 bit ULONG */
 254                         "AND keyval=?) AND oc_name=?";
 255                 snprintf( tmp, sizeof(tmp),
 256                         "DELETE FROM ldap_entry_objclasses "
 257                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 258                         "WHERE oc_map_id=%lu "
 259                         "AND keyval=?) AND oc_name=?",
 260                         oc_map->bom_id );
 261                 at_map->bam_delete_proc = ch_strdup( tmp );
 262         }
 263
 264         at_map->bam_param_order = 0;
 265         at_map->bam_expect_return = 0;
 266         at_map->bam_next = NULL;
 267
 268         backsql_make_attr_query( bi, oc_map, at_map );
 269         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 270                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 271                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 272                                 at_map->bam_ad->ad_cname.bv_val,
 273                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 274         }
 275
 276         /* FIXME: we need to correct the objectClass join_where
 277          * after the attribute query is built */
 278         ch_free( at_map->bam_join_where.bv_val );
 279         BER_BVZERO( &bb.bb_val );
 280         bb.bb_len = 0;
 281         backsql_strfcat_x( &bb, NULL, "lbcblb",
 282                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 283                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 284                         &oc_map->bom_keytbl,
 285                         '.',
 286                         &oc_map->bom_keycol,
 287                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 288                                 " AND ldap_entries.oc_map_id=",
 289                         &sbv );
 290         at_map->bam_join_where = bb.bb_val;
 291
 292         return 1;
 293 }
 294
 295 struct backsql_attr_schema_info {
 296         backsql_info    *bas_bi;
 297         SQLHDBC         bas_dbh;
 298         SQLHSTMT        bas_sth;
 299         unsigned long   *bas_oc_id;
 300         int             bas_rc;
 301 };
 302
 303 static int
 304 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 305 {
 306         RETCODE                         rc;
 307         BACKSQL_ROW_NTS                 at_row;
 308         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 309         backsql_at_map_rec              *at_map;
 310         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 311
 312         /* bas->bas_oc_id has been bound to bas->bas_sth */
 313         *bas->bas_oc_id = oc_map->bom_id;
 314
 315         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 316                 "executing at_query\n"
 317                 "    \"%s\"\n"
 318                 "    for objectClass \"%s\"\n"
 319                 "    with param oc_id=\"%lu\"\n",
 320                 bas->bas_bi->sql_at_query,
 321                 BACKSQL_OC_NAME( oc_map ),
 322                 *bas->bas_oc_id );
 323
 324         rc = SQLExecute( bas->bas_sth );
 325         if ( rc != SQL_SUCCESS ) {
 326                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 327                         "error executing at_query\n"
 328                         "    \"%s\"\n"
 329                         "    for objectClass \"%s\"\n"
 330                         "    with param oc_id=\"%lu\"\n",
 331                         bas->bas_bi->sql_at_query,
 332                         BACKSQL_OC_NAME( oc_map ),
 333                         *bas->bas_oc_id );
 334                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 335                                 bas->bas_dbh, bas->bas_sth, rc );
 336                 bas->bas_rc = LDAP_OTHER;
 337                 return BACKSQL_AVL_STOP;
 338         }
 339
 340         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 341         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 342                 const char      *text = NULL;
 343                 struct berval   bv;
 344                 struct berbuf   bb = BB_NULL;
 345                 AttributeDescription *ad = NULL;
 346
 347                 Debug( LDAP_DEBUG_TRACE,
 348                         "attributeType:\n"
 349                         "\tname=\"%s\"\n"
 350                         "\tsel_expr=\"%s\"\n"
 351                         "\tfrom=\"%s\"\n",
 352                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 353                         at_row.cols[ 2 ] );
 354                 Debug( LDAP_DEBUG_TRACE,
 355                         "\tjoin_where=\"%s\"\n"
 356                         "\tadd_proc=\"%s\"\n"
 357                         "\tdelete_proc=\"%s\"\n",
 358                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 359                         at_row.cols[ 5 ]);
 360                 /* TimesTen */
 361                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 362                                 at_row.cols[ 8 ], 0, 0 );
 363                 rc = slap_str2ad( at_row.cols[ 0 ], &ad, &text );
 364                 if ( rc != LDAP_SUCCESS ) {
 365                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 366                                 "attribute \"%s\" for objectClass \"%s\" "
 367                                 "is not defined in schema: %s\n",
 368                                 at_row.cols[ 0 ],
 369                                 BACKSQL_OC_NAME( oc_map ), text );
 370                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 371                         return BACKSQL_AVL_STOP;
 372                 }
 373                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 374                                 sizeof( backsql_at_map_rec ) );
 375                 at_map->bam_ad = ad;
 376                 at_map->bam_true_ad = ad;
 377                 if ( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 378                         && !slap_ad_is_binary( ad ) )
 379                 {
 380                         char            buf[ BUFSIZ ];
 381                         struct berval   bv;
 382                         const char      *text = NULL;
 383
 384                         bv.bv_val = buf;
 385                         bv.bv_len = snprintf( buf, sizeof( buf ), "%s;binary",
 386                                 ad->ad_cname.bv_val );
 387                         at_map->bam_true_ad = NULL;
 388                         bas->bas_rc = slap_bv2ad( &bv, &at_map->bam_true_ad, &text );
 389                         if ( bas->bas_rc != LDAP_SUCCESS ) {
 390                                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 391                                         "unable to fetch attribute \"%s\": %s (%d)\n",
 392                                         buf, text, rc );
 393                                 return BACKSQL_AVL_STOP;
 394                         }
 395                 }
 396
 397                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 398                 if ( at_row.value_len[ 8 ] < 0 ) {
 399                         BER_BVZERO( &at_map->bam_sel_expr_u );
 400
 401                 } else {
 402                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 403                                         &at_map->bam_sel_expr_u );
 404                 }
 405
 406                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 407                 backsql_merge_from_clause( bas->bas_bi, &bb, &bv );
 408                 at_map->bam_from_tbls = bb.bb_val;
 409                 if ( at_row.value_len[ 3 ] < 0 ) {
 410                         BER_BVZERO( &at_map->bam_join_where );
 411
 412                 } else {
 413                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 414                                         &at_map->bam_join_where );
 415                 }
 416                 at_map->bam_add_proc = NULL;
 417                 if ( at_row.value_len[ 4 ] > 0 ) {
 418                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 419                 }
 420                 at_map->bam_delete_proc = NULL;
 421                 if ( at_row.value_len[ 5 ] > 0 ) {
 422                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 423                 }
 424                 if ( lutil_atoix( &at_map->bam_param_order, at_row.cols[ 6 ], 0 ) != 0 ) {
 425                         /* error */
 426                 }
 427                 if ( lutil_atoix( &at_map->bam_expect_return, at_row.cols[ 7 ], 0 ) != 0 ) {
 428                         /* error */
 429                 }
 430                 backsql_make_attr_query( bas->bas_bi, oc_map, at_map );
 431                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 432                         "preconstructed query \"%s\"\n",
 433                         at_map->bam_query, 0, 0 );
 434                 at_map->bam_next = NULL;
 435                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 436                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 437                                         "duplicate attribute \"%s\" "
 438                                         "in objectClass \"%s\" map\n",
 439                                         at_map->bam_ad->ad_cname.bv_val,
 440                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 441                 }
 442
 443                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 444                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 445                 {
 446                         struct berbuf   bb = BB_NULL;
 447
 448                         backsql_strfcat_x( &bb, NULL, "bcbc",
 449                                         &bas->bas_bi->sql_upper_func,
 450                                         '(' /* ) */ ,
 451                                         &at_map->bam_sel_expr,
 452                                         /* ( */ ')' );
 453                         at_map->bam_sel_expr_u = bb.bb_val;
 454                 }
 455         }
 456         backsql_FreeRow( &at_row );
 457         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 458
 459         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 460                 "autoadding 'objectClass' and 'ref' mappings\n",
 461                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 462
 463         (void)backsql_add_sysmaps( bas->bas_bi, oc_map );
 464
 465         return BACKSQL_AVL_CONTINUE;
 466 }
 467
 468
 469 int
 470 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 471 {
 472         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 473         RETCODE                         rc;
 474         BACKSQL_ROW_NTS                 oc_row;
 475         unsigned long                   oc_id;
 476         backsql_oc_map_rec              *oc_map;
 477         struct backsql_attr_schema_info bas;
 478
 479         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 480
 481         /*
 482          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 483          */
 484         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 485                 rc = backsql_Prepare( dbh, &sth,
 486                                 backsql_check_dn_ru_query, 0 );
 487                 if ( rc == SQL_SUCCESS ) {
 488                         /* Yes, the field exists */
 489                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 490                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 491                                 "in the schema\n", 0, 0, 0 );
 492                 } else {
 493                         /* No such field exists */
 494                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 495                 }
 496
 497                 SQLFreeStmt( sth, SQL_DROP );
 498         }
 499
 500         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 501                         bi->sql_oc_query, 0, 0 );
 502
 503         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 504         if ( rc != SQL_SUCCESS ) {
 505                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 506                         "error preparing oc_query: \"%s\"\n",
 507                         bi->sql_oc_query, 0, 0 );
 508                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 509                 return LDAP_OTHER;
 510         }
 511
 512         rc = SQLExecute( sth );
 513         if ( rc != SQL_SUCCESS ) {
 514                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 515                         "error executing oc_query: \n", 0, 0, 0 );
 516                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 517                 return LDAP_OTHER;
 518         }
 519
 520         backsql_BindRowAsStrings( sth, &oc_row );
 521         rc = SQLFetch( sth );
 522         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 523                 int     colnum;
 524
 525                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 526                                 sizeof( backsql_oc_map_rec ) );
 527
 528                 if ( lutil_atoulx( &oc_map->bom_id, oc_row.cols[ 0 ], 0 ) != 0 ) {
 529                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 530                                 "unable to parse id=\"%s\"\n",
 531                                 oc_row.cols[ 0 ], 0, 0 );
 532                         return LDAP_OTHER;
 533                 }
 534
 535                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 536                 if ( oc_map->bom_oc == NULL ) {
 537                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 538                                 "objectClass \"%s\" is not defined in schema\n",
 539                                 oc_row.cols[ 1 ], 0, 0 );
 540                         return LDAP_OTHER;      /* undefined objectClass ? */
 541                 }
 542
 543                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 544                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 545                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 546                         : ch_strdup( oc_row.cols[ 4 ] );
 547
 548                 colnum = 5;
 549                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 550                         colnum = 6;
 551                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 552                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 553                 }
 554                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 555                         : ch_strdup( oc_row.cols[ colnum ] );
 556                 if ( lutil_atoix( &oc_map->bom_expect_return, oc_row.cols[ colnum + 1 ], 0 ) != 0 ) {
 557                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 558                                 "unable to parse expect_return=\"%s\" for objectClass \"%s\"\n",
 559                                 oc_row.cols[ colnum + 1 ], oc_row.cols[ 1 ], 0 );
 560                         return LDAP_OTHER;
 561                 }
 562
 563                 colnum += 2;
 564                 if ( ( oc_row.ncols > colnum ) &&
 565                                 ( oc_row.value_len[ colnum ] > 0 ) )
 566                 {
 567                         const char      *text;
 568
 569                         oc_map->bom_create_hint = NULL;
 570                         rc = slap_str2ad( oc_row.cols[ colnum ],
 571                                         &oc_map->bom_create_hint, &text );
 572                         if ( rc != SQL_SUCCESS ) {
 573                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 574                                                 "error matching "
 575                                                 "AttributeDescription %s "
 576                                                 "in create_hint: %s (%d)\n",
 577                                                 oc_row.cols[ colnum ],
 578                                                 text, rc );
 579                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 580                                                 sth, rc );
 581                                 return LDAP_OTHER;
 582                         }
 583                 }
 584
 585                 /*
 586                  * FIXME: first attempt to check for offending
 587                  * instructions in {create|delete}_proc
 588                  */
 589
 590                 oc_map->bom_attrs = NULL;
 591                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 592                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 593                                         "duplicate objectClass \"%s\" in objectClass map\n",
 594                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 595                         return LDAP_OTHER;
 596                 }
 597                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 598                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 599                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 600                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 601                         return LDAP_OTHER;
 602                 }
 603                 oc_id = oc_map->bom_id;
 604                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 605                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 606                         BACKSQL_OC_NAME( oc_map ),
 607                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 608                 if ( oc_map->bom_create_proc ) {
 609                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 610                                 oc_map->bom_create_proc, 0, 0 );
 611                 }
 612                 if ( oc_map->bom_create_keyval ) {
 613                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 614                                 oc_map->bom_create_keyval, 0, 0 );
 615                 }
 616                 if ( oc_map->bom_create_hint ) {
 617                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 618                                 oc_map->bom_create_hint->ad_cname.bv_val,
 619                                 0, 0 );
 620                 }
 621                 if ( oc_map->bom_delete_proc ) {
 622                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 623                                 oc_map->bom_delete_proc, 0, 0 );
 624                 }
 625                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 626                         "add=%d, del=%d; attributes:\n",
 627                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 628                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 629         }
 630
 631         backsql_FreeRow( &oc_row );
 632         SQLFreeStmt( sth, SQL_DROP );
 633
 634         /* prepare for attribute fetching */
 635         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 636                         bi->sql_at_query, 0, 0 );
 637
 638         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 639         if ( rc != SQL_SUCCESS ) {
 640                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 641                         "error preparing at_query: \"%s\"\n",
 642                         bi->sql_at_query, 0, 0 );
 643                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 644                 return LDAP_OTHER;
 645         }
 646
 647         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 648         if ( rc != SQL_SUCCESS ) {
 649                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 650                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 651                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 652                 SQLFreeStmt( sth, SQL_DROP );
 653                 return LDAP_OTHER;
 654         }
 655
 656         bas.bas_bi = bi;
 657         bas.bas_dbh = dbh;
 658         bas.bas_sth = sth;
 659         bas.bas_oc_id = &oc_id;
 660         bas.bas_rc = LDAP_SUCCESS;
 661
 662         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 663                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 664
 665         SQLFreeStmt( sth, SQL_DROP );
 666
 667         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 668
 669         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 670
 671         return bas.bas_rc;
 672 }
 673
 674 backsql_oc_map_rec *
 675 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 676 {
 677         backsql_oc_map_rec      tmp, *res;
 678
 679 #ifdef BACKSQL_TRACE
 680         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 681                 "searching for objectclass with name=\"%s\"\n",
 682                 oc->soc_cname.bv_val, 0, 0 );
 683 #endif /* BACKSQL_TRACE */
 684
 685         tmp.bom_oc = oc;
 686         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 687 #ifdef BACKSQL_TRACE
 688         if ( res != NULL ) {
 689                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 690                         "found name=\"%s\", id=%d\n",
 691                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 692         } else {
 693                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 694                         "not found\n", 0, 0, 0 );
 695         }
 696 #endif /* BACKSQL_TRACE */
 697
 698         return res;
 699 }
 700
 701 backsql_oc_map_rec *
 702 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 703 {
 704         backsql_oc_map_rec      tmp, *res;
 705
 706 #ifdef BACKSQL_TRACE
 707         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 708                 "searching for objectclass with name=\"%s\"\n",
 709                 oc_name->bv_val, 0, 0 );
 710 #endif /* BACKSQL_TRACE */
 711
 712         tmp.bom_oc = oc_bvfind( oc_name );
 713         if ( tmp.bom_oc == NULL ) {
 714                 return NULL;
 715         }
 716
 717         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 718 #ifdef BACKSQL_TRACE
 719         if ( res != NULL ) {
 720                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 721                         "found name=\"%s\", id=%d\n",
 722                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 723         } else {
 724                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 725                         "not found\n", 0, 0, 0 );
 726         }
 727 #endif /* BACKSQL_TRACE */
 728
 729         return res;
 730 }
 731
 732 backsql_oc_map_rec *
 733 backsql_id2oc( backsql_info *bi, unsigned long id )
 734 {
 735         backsql_oc_map_rec      tmp, *res;
 736
 737 #ifdef BACKSQL_TRACE
 738         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 739                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 740 #endif /* BACKSQL_TRACE */
 741
 742         tmp.bom_id = id;
 743         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 744                         backsql_cmp_oc_id );
 745
 746 #ifdef BACKSQL_TRACE
 747         if ( res != NULL ) {
 748                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 749                         "found name=\"%s\", id=%d\n",
 750                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 751         } else {
 752                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 753                         "not found\n", 0, 0, 0 );
 754         }
 755 #endif /* BACKSQL_TRACE */
 756
 757         return res;
 758 }
 759
 760 backsql_at_map_rec *
 761 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 762 {
 763         backsql_at_map_rec      tmp = { 0 }, *res;
 764
 765 #ifdef BACKSQL_TRACE
 766         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 767                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 768                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 769 #endif /* BACKSQL_TRACE */
 770
 771         tmp.bam_ad = ad;
 772         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 773                         backsql_cmp_attr );
 774
 775 #ifdef BACKSQL_TRACE
 776         if ( res != NULL ) {
 777                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 778                         "found name=\"%s\", sel_expr=\"%s\"\n",
 779                         res->bam_ad->ad_cname.bv_val,
 780                         res->bam_sel_expr.bv_val, 0 );
 781         } else {
 782                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 783                         "not found\n", 0, 0, 0 );
 784         }
 785 #endif /* BACKSQL_TRACE */
 786
 787         return res;
 788 }
 789
 790 /* attributeType inheritance */
 791 struct supad2at_t {
 792         backsql_at_map_rec      **ret;
 793         AttributeDescription    *ad;
 794         unsigned                n;
 795 };
 796
 797 #define SUPAD2AT_STOP   (-1)
 798
 799 static int
 800 supad2at_f( void *v_at, void *v_arg )
 801 {
 802         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 803         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 804
 805         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 806                 backsql_at_map_rec      **ret = NULL;
 807                 unsigned                i;
 808
 809                 /* if already listed, holler! (should never happen) */
 810                 if ( va->ret ) {
 811                         for ( i = 0; i < va->n; i++ ) {
 812                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 813                                         break;
 814                                 }
 815                         }
 816
 817                         if ( i < va->n ) {
 818                                 return 0;
 819                         }
 820                 }
 821
 822                 ret = ch_realloc( va->ret,
 823                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 824                 if ( ret == NULL ) {
 825                         ch_free( va->ret );
 826                         va->ret = NULL;
 827                         va->n = 0;
 828                         return SUPAD2AT_STOP;
 829                 }
 830
 831                 ret[ va->n ] = at;
 832                 va->n++;
 833                 ret[ va->n ] = NULL;
 834                 va->ret = ret;
 835         }
 836
 837         return 0;
 838 }
 839
 840 /*
 841  * stores in *pret a NULL terminated array of pointers
 842  * to backsql_at_map_rec whose attributeType is supad->ad_type
 843  * or derived from it
 844  */
 845 int
 846 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 847                 backsql_at_map_rec ***pret )
 848 {
 849         struct supad2at_t       va = { 0 };
 850         int                     rc;
 851
 852         assert( objclass != NULL );
 853         assert( supad != NULL );
 854         assert( pret != NULL );
 855
 856         *pret = NULL;
 857
 858         va.ad = supad;
 859
 860         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 861                         SUPAD2AT_STOP, AVL_INORDER );
 862         if ( rc == SUPAD2AT_STOP ) {
 863                 return -1;
 864         }
 865
 866         *pret = va.ret;
 867
 868         return 0;
 869 }
 870
 871 static void
 872 backsql_free_attr( void *v_at )
 873 {
 874         backsql_at_map_rec      *at = v_at;
 875
 876         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 877                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 878         ch_free( at->bam_sel_expr.bv_val );
 879         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 880                 ch_free( at->bam_from_tbls.bv_val );
 881         }
 882         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 883                 ch_free( at->bam_join_where.bv_val );
 884         }
 885         if ( at->bam_add_proc != NULL ) {
 886                 ch_free( at->bam_add_proc );
 887         }
 888         if ( at->bam_delete_proc != NULL ) {
 889                 ch_free( at->bam_delete_proc );
 890         }
 891         if ( at->bam_query != NULL ) {
 892                 ch_free( at->bam_query );
 893         }
 894
 895 #ifdef BACKSQL_COUNTQUERY
 896         if ( at->bam_countquery != NULL ) {
 897                 ch_free( at->bam_countquery );
 898         }
 899 #endif /* BACKSQL_COUNTQUERY */
 900
 901         /* TimesTen */
 902         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 903                 ch_free( at->bam_sel_expr_u.bv_val );
 904         }
 905
 906         if ( at->bam_next ) {
 907                 backsql_free_attr( at->bam_next );
 908         }
 909
 910         ch_free( at );
 911
 912         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 913 }
 914
 915 static void
 916 backsql_free_oc( void *v_oc )
 917 {
 918         backsql_oc_map_rec      *oc = v_oc;
 919
 920         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 921                         BACKSQL_OC_NAME( oc ), 0, 0 );
 922         avl_free( oc->bom_attrs, backsql_free_attr );
 923         ch_free( oc->bom_keytbl.bv_val );
 924         ch_free( oc->bom_keycol.bv_val );
 925         if ( oc->bom_create_proc != NULL ) {
 926                 ch_free( oc->bom_create_proc );
 927         }
 928         if ( oc->bom_create_keyval != NULL ) {
 929                 ch_free( oc->bom_create_keyval );
 930         }
 931         if ( oc->bom_delete_proc != NULL ) {
 932                 ch_free( oc->bom_delete_proc );
 933         }
 934         ch_free( oc );
 935
 936         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 937 }
 938
 939 int
 940 backsql_destroy_schema_map( backsql_info *bi )
 941 {
 942         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 943         avl_free( bi->sql_oc_by_oc, 0 );
 944         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 945         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 946         return 0;
 947 }
 948