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 1999-2008 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[LDAP_PVT_INTTYPE_CHARS(long)];
 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[STRLENOF("INSERT INTO ldap_entry_objclasses "
 232                         "(entry_id,oc_name) VALUES "
 233                         "((SELECT id FROM ldap_entries "
 234                         "WHERE oc_map_id= "
 235                         "AND keyval=?),?)") + LDAP_PVT_INTTYPE_CHARS(unsigned long)];
 236                 snprintf( tmp, sizeof(tmp),
 237                         "INSERT INTO ldap_entry_objclasses "
 238                         "(entry_id,oc_name) VALUES "
 239                         "((SELECT id FROM ldap_entries "
 240                         "WHERE oc_map_id=%lu "
 241                         "AND keyval=?),?)", oc_map->bom_id );
 242                 at_map->bam_add_proc = ch_strdup( tmp );
 243         }
 244
 245         at_map->bam_delete_proc = NULL;
 246         {
 247                 char    tmp[STRLENOF("DELETE FROM ldap_entry_objclasses "
 248                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 249                         "WHERE oc_map_id= "
 250                         "AND keyval=?) AND oc_name=?") + LDAP_PVT_INTTYPE_CHARS(unsigned long)];
 251                 snprintf( tmp, sizeof(tmp),
 252                         "DELETE FROM ldap_entry_objclasses "
 253                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 254                         "WHERE oc_map_id=%lu "
 255                         "AND keyval=?) AND oc_name=?",
 256                         oc_map->bom_id );
 257                 at_map->bam_delete_proc = ch_strdup( tmp );
 258         }
 259
 260         at_map->bam_param_order = 0;
 261         at_map->bam_expect_return = 0;
 262         at_map->bam_next = NULL;
 263
 264         backsql_make_attr_query( bi, oc_map, at_map );
 265         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 266                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 267                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 268                                 at_map->bam_ad->ad_cname.bv_val,
 269                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 270         }
 271
 272         /* FIXME: we need to correct the objectClass join_where
 273          * after the attribute query is built */
 274         ch_free( at_map->bam_join_where.bv_val );
 275         BER_BVZERO( &bb.bb_val );
 276         bb.bb_len = 0;
 277         backsql_strfcat_x( &bb, NULL, "lbcblb",
 278                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 279                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 280                         &oc_map->bom_keytbl,
 281                         '.',
 282                         &oc_map->bom_keycol,
 283                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 284                                 " AND ldap_entries.oc_map_id=",
 285                         &sbv );
 286         at_map->bam_join_where = bb.bb_val;
 287
 288         return 1;
 289 }
 290
 291 struct backsql_attr_schema_info {
 292         backsql_info    *bas_bi;
 293         SQLHDBC         bas_dbh;
 294         SQLHSTMT        bas_sth;
 295         unsigned long   *bas_oc_id;
 296         int             bas_rc;
 297 };
 298
 299 static int
 300 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 301 {
 302         RETCODE                         rc;
 303         BACKSQL_ROW_NTS                 at_row;
 304         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 305         backsql_at_map_rec              *at_map;
 306         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 307
 308         /* bas->bas_oc_id has been bound to bas->bas_sth */
 309         *bas->bas_oc_id = oc_map->bom_id;
 310
 311         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 312                 "executing at_query\n"
 313                 "    \"%s\"\n"
 314                 "    for objectClass \"%s\"\n"
 315                 "    with param oc_id=\"%lu\"\n",
 316                 bas->bas_bi->sql_at_query,
 317                 BACKSQL_OC_NAME( oc_map ),
 318                 *bas->bas_oc_id );
 319
 320         rc = SQLExecute( bas->bas_sth );
 321         if ( rc != SQL_SUCCESS ) {
 322                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 323                         "error executing at_query\n"
 324                         "    \"%s\"\n"
 325                         "    for objectClass \"%s\"\n"
 326                         "    with param oc_id=\"%lu\"\n",
 327                         bas->bas_bi->sql_at_query,
 328                         BACKSQL_OC_NAME( oc_map ),
 329                         *bas->bas_oc_id );
 330                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 331                                 bas->bas_dbh, bas->bas_sth, rc );
 332                 bas->bas_rc = LDAP_OTHER;
 333                 return BACKSQL_AVL_STOP;
 334         }
 335
 336         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 337         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 338                 const char      *text = NULL;
 339                 struct berval   bv;
 340                 struct berbuf   bb = BB_NULL;
 341                 AttributeDescription *ad = NULL;
 342
 343                 Debug( LDAP_DEBUG_TRACE,
 344                         "attributeType:\n"
 345                         "\tname=\"%s\"\n"
 346                         "\tsel_expr=\"%s\"\n"
 347                         "\tfrom=\"%s\"\n",
 348                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 349                         at_row.cols[ 2 ] );
 350                 Debug( LDAP_DEBUG_TRACE,
 351                         "\tjoin_where=\"%s\"\n"
 352                         "\tadd_proc=\"%s\"\n"
 353                         "\tdelete_proc=\"%s\"\n",
 354                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 355                         at_row.cols[ 5 ]);
 356                 /* TimesTen */
 357                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 358                                 at_row.cols[ 8 ], 0, 0 );
 359                 rc = slap_str2ad( at_row.cols[ 0 ], &ad, &text );
 360                 if ( rc != LDAP_SUCCESS ) {
 361                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 362                                 "attribute \"%s\" for objectClass \"%s\" "
 363                                 "is not defined in schema: %s\n",
 364                                 at_row.cols[ 0 ],
 365                                 BACKSQL_OC_NAME( oc_map ), text );
 366                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 367                         return BACKSQL_AVL_STOP;
 368                 }
 369                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 370                                 sizeof( backsql_at_map_rec ) );
 371                 at_map->bam_ad = ad;
 372                 at_map->bam_true_ad = ad;
 373                 if ( slap_syntax_is_binary( ad->ad_type->sat_syntax )
 374                         && !slap_ad_is_binary( ad ) )
 375                 {
 376                         char            buf[ BUFSIZ ];
 377                         struct berval   bv;
 378                         const char      *text = NULL;
 379
 380                         bv.bv_val = buf;
 381                         bv.bv_len = snprintf( buf, sizeof( buf ), "%s;binary",
 382                                 ad->ad_cname.bv_val );
 383                         at_map->bam_true_ad = NULL;
 384                         bas->bas_rc = slap_bv2ad( &bv, &at_map->bam_true_ad, &text );
 385                         if ( bas->bas_rc != LDAP_SUCCESS ) {
 386                                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 387                                         "unable to fetch attribute \"%s\": %s (%d)\n",
 388                                         buf, text, rc );
 389                                 return BACKSQL_AVL_STOP;
 390                         }
 391                 }
 392
 393                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 394                 if ( at_row.value_len[ 8 ] <= 0 ) {
 395                         BER_BVZERO( &at_map->bam_sel_expr_u );
 396
 397                 } else {
 398                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 399                                         &at_map->bam_sel_expr_u );
 400                 }
 401
 402                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 403                 backsql_merge_from_clause( bas->bas_bi, &bb, &bv );
 404                 at_map->bam_from_tbls = bb.bb_val;
 405                 if ( at_row.value_len[ 3 ] <= 0 ) {
 406                         BER_BVZERO( &at_map->bam_join_where );
 407
 408                 } else {
 409                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 410                                         &at_map->bam_join_where );
 411                 }
 412                 at_map->bam_add_proc = NULL;
 413                 if ( at_row.value_len[ 4 ] > 0 ) {
 414                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 415                 }
 416                 at_map->bam_delete_proc = NULL;
 417                 if ( at_row.value_len[ 5 ] > 0 ) {
 418                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 419                 }
 420                 if ( lutil_atoix( &at_map->bam_param_order, at_row.cols[ 6 ], 0 ) != 0 ) {
 421                         /* error */
 422                 }
 423                 if ( lutil_atoix( &at_map->bam_expect_return, at_row.cols[ 7 ], 0 ) != 0 ) {
 424                         /* error */
 425                 }
 426                 backsql_make_attr_query( bas->bas_bi, oc_map, at_map );
 427                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 428                         "preconstructed query \"%s\"\n",
 429                         at_map->bam_query, 0, 0 );
 430                 at_map->bam_next = NULL;
 431                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 432                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 433                                         "duplicate attribute \"%s\" "
 434                                         "in objectClass \"%s\" map\n",
 435                                         at_map->bam_ad->ad_cname.bv_val,
 436                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 437                 }
 438
 439                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 440                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 441                 {
 442                         struct berbuf   bb = BB_NULL;
 443
 444                         backsql_strfcat_x( &bb, NULL, "bcbc",
 445                                         &bas->bas_bi->sql_upper_func,
 446                                         '(' /* ) */ ,
 447                                         &at_map->bam_sel_expr,
 448                                         /* ( */ ')' );
 449                         at_map->bam_sel_expr_u = bb.bb_val;
 450                 }
 451         }
 452         backsql_FreeRow( &at_row );
 453         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 454
 455         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 456                 "autoadding 'objectClass' and 'ref' mappings\n",
 457                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 458
 459         (void)backsql_add_sysmaps( bas->bas_bi, oc_map );
 460
 461         return BACKSQL_AVL_CONTINUE;
 462 }
 463
 464
 465 int
 466 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 467 {
 468         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 469         RETCODE                         rc;
 470         BACKSQL_ROW_NTS                 oc_row;
 471         unsigned long                   oc_id;
 472         backsql_oc_map_rec              *oc_map;
 473         struct backsql_attr_schema_info bas;
 474
 475         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 476
 477         /*
 478          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 479          */
 480         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 481                 rc = backsql_Prepare( dbh, &sth,
 482                                 backsql_check_dn_ru_query, 0 );
 483                 if ( rc == SQL_SUCCESS ) {
 484                         /* Yes, the field exists */
 485                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 486                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 487                                 "in the schema\n", 0, 0, 0 );
 488                 } else {
 489                         /* No such field exists */
 490                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 491                 }
 492
 493                 SQLFreeStmt( sth, SQL_DROP );
 494         }
 495
 496         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 497                         bi->sql_oc_query, 0, 0 );
 498
 499         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 500         if ( rc != SQL_SUCCESS ) {
 501                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 502                         "error preparing oc_query: \"%s\"\n",
 503                         bi->sql_oc_query, 0, 0 );
 504                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 505                 return LDAP_OTHER;
 506         }
 507
 508         rc = SQLExecute( sth );
 509         if ( rc != SQL_SUCCESS ) {
 510                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 511                         "error executing oc_query: \n", 0, 0, 0 );
 512                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 513                 return LDAP_OTHER;
 514         }
 515
 516         backsql_BindRowAsStrings( sth, &oc_row );
 517         rc = SQLFetch( sth );
 518         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 519                 int     colnum;
 520
 521                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 522                                 sizeof( backsql_oc_map_rec ) );
 523
 524                 if ( lutil_atoulx( &oc_map->bom_id, oc_row.cols[ 0 ], 0 ) != 0 ) {
 525                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 526                                 "unable to parse id=\"%s\"\n",
 527                                 oc_row.cols[ 0 ], 0, 0 );
 528                         return LDAP_OTHER;
 529                 }
 530
 531                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 532                 if ( oc_map->bom_oc == NULL ) {
 533                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 534                                 "objectClass \"%s\" is not defined in schema\n",
 535                                 oc_row.cols[ 1 ], 0, 0 );
 536                         return LDAP_OTHER;      /* undefined objectClass ? */
 537                 }
 538
 539                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 540                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 541                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] <= 0 ) ? NULL
 542                         : ch_strdup( oc_row.cols[ 4 ] );
 543
 544                 colnum = 5;
 545                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 546                         colnum = 6;
 547                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] <= 0 )
 548                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 549                 }
 550                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] <= 0 ) ? NULL
 551                         : ch_strdup( oc_row.cols[ colnum ] );
 552                 if ( lutil_atoix( &oc_map->bom_expect_return, oc_row.cols[ colnum + 1 ], 0 ) != 0 ) {
 553                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 554                                 "unable to parse expect_return=\"%s\" for objectClass \"%s\"\n",
 555                                 oc_row.cols[ colnum + 1 ], oc_row.cols[ 1 ], 0 );
 556                         return LDAP_OTHER;
 557                 }
 558
 559                 colnum += 2;
 560                 if ( ( oc_row.ncols > colnum ) &&
 561                                 ( oc_row.value_len[ colnum ] > 0 ) )
 562                 {
 563                         const char      *text;
 564
 565                         oc_map->bom_create_hint = NULL;
 566                         rc = slap_str2ad( oc_row.cols[ colnum ],
 567                                         &oc_map->bom_create_hint, &text );
 568                         if ( rc != SQL_SUCCESS ) {
 569                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 570                                                 "error matching "
 571                                                 "AttributeDescription %s "
 572                                                 "in create_hint: %s (%d)\n",
 573                                                 oc_row.cols[ colnum ],
 574                                                 text, rc );
 575                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 576                                                 sth, rc );
 577                                 return LDAP_OTHER;
 578                         }
 579                 }
 580
 581                 /*
 582                  * FIXME: first attempt to check for offending
 583                  * instructions in {create|delete}_proc
 584                  */
 585
 586                 oc_map->bom_attrs = NULL;
 587                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 588                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 589                                         "duplicate objectClass \"%s\" in objectClass map\n",
 590                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 591                         return LDAP_OTHER;
 592                 }
 593                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 594                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 595                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 596                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 597                         return LDAP_OTHER;
 598                 }
 599                 oc_id = oc_map->bom_id;
 600                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 601                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 602                         BACKSQL_OC_NAME( oc_map ),
 603                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 604                 if ( oc_map->bom_create_proc ) {
 605                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 606                                 oc_map->bom_create_proc, 0, 0 );
 607                 }
 608                 if ( oc_map->bom_create_keyval ) {
 609                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 610                                 oc_map->bom_create_keyval, 0, 0 );
 611                 }
 612                 if ( oc_map->bom_create_hint ) {
 613                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 614                                 oc_map->bom_create_hint->ad_cname.bv_val,
 615                                 0, 0 );
 616                 }
 617                 if ( oc_map->bom_delete_proc ) {
 618                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 619                                 oc_map->bom_delete_proc, 0, 0 );
 620                 }
 621                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 622                         "add=%d, del=%d; attributes:\n",
 623                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 624                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 625         }
 626
 627         backsql_FreeRow( &oc_row );
 628         SQLFreeStmt( sth, SQL_DROP );
 629
 630         /* prepare for attribute fetching */
 631         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 632                         bi->sql_at_query, 0, 0 );
 633
 634         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 635         if ( rc != SQL_SUCCESS ) {
 636                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 637                         "error preparing at_query: \"%s\"\n",
 638                         bi->sql_at_query, 0, 0 );
 639                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 640                 return LDAP_OTHER;
 641         }
 642
 643         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 644         if ( rc != SQL_SUCCESS ) {
 645                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 646                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 647                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 648                 SQLFreeStmt( sth, SQL_DROP );
 649                 return LDAP_OTHER;
 650         }
 651
 652         bas.bas_bi = bi;
 653         bas.bas_dbh = dbh;
 654         bas.bas_sth = sth;
 655         bas.bas_oc_id = &oc_id;
 656         bas.bas_rc = LDAP_SUCCESS;
 657
 658         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 659                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 660
 661         SQLFreeStmt( sth, SQL_DROP );
 662
 663         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 664
 665         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 666
 667         return bas.bas_rc;
 668 }
 669
 670 backsql_oc_map_rec *
 671 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 672 {
 673         backsql_oc_map_rec      tmp, *res;
 674
 675 #ifdef BACKSQL_TRACE
 676         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 677                 "searching for objectclass with name=\"%s\"\n",
 678                 oc->soc_cname.bv_val, 0, 0 );
 679 #endif /* BACKSQL_TRACE */
 680
 681         tmp.bom_oc = oc;
 682         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 683 #ifdef BACKSQL_TRACE
 684         if ( res != NULL ) {
 685                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 686                         "found name=\"%s\", id=%d\n",
 687                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 688         } else {
 689                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 690                         "not found\n", 0, 0, 0 );
 691         }
 692 #endif /* BACKSQL_TRACE */
 693
 694         return res;
 695 }
 696
 697 backsql_oc_map_rec *
 698 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 699 {
 700         backsql_oc_map_rec      tmp, *res;
 701
 702 #ifdef BACKSQL_TRACE
 703         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 704                 "searching for objectclass with name=\"%s\"\n",
 705                 oc_name->bv_val, 0, 0 );
 706 #endif /* BACKSQL_TRACE */
 707
 708         tmp.bom_oc = oc_bvfind( oc_name );
 709         if ( tmp.bom_oc == NULL ) {
 710                 return NULL;
 711         }
 712
 713         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 714 #ifdef BACKSQL_TRACE
 715         if ( res != NULL ) {
 716                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 717                         "found name=\"%s\", id=%d\n",
 718                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 719         } else {
 720                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 721                         "not found\n", 0, 0, 0 );
 722         }
 723 #endif /* BACKSQL_TRACE */
 724
 725         return res;
 726 }
 727
 728 backsql_oc_map_rec *
 729 backsql_id2oc( backsql_info *bi, unsigned long id )
 730 {
 731         backsql_oc_map_rec      tmp, *res;
 732
 733 #ifdef BACKSQL_TRACE
 734         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 735                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 736 #endif /* BACKSQL_TRACE */
 737
 738         tmp.bom_id = id;
 739         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 740                         backsql_cmp_oc_id );
 741
 742 #ifdef BACKSQL_TRACE
 743         if ( res != NULL ) {
 744                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 745                         "found name=\"%s\", id=%d\n",
 746                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 747         } else {
 748                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 749                         "not found\n", 0, 0, 0 );
 750         }
 751 #endif /* BACKSQL_TRACE */
 752
 753         return res;
 754 }
 755
 756 backsql_at_map_rec *
 757 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 758 {
 759         backsql_at_map_rec      tmp = { 0 }, *res;
 760
 761 #ifdef BACKSQL_TRACE
 762         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 763                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 764                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 765 #endif /* BACKSQL_TRACE */
 766
 767         tmp.bam_ad = ad;
 768         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 769                         backsql_cmp_attr );
 770
 771 #ifdef BACKSQL_TRACE
 772         if ( res != NULL ) {
 773                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 774                         "found name=\"%s\", sel_expr=\"%s\"\n",
 775                         res->bam_ad->ad_cname.bv_val,
 776                         res->bam_sel_expr.bv_val, 0 );
 777         } else {
 778                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 779                         "not found\n", 0, 0, 0 );
 780         }
 781 #endif /* BACKSQL_TRACE */
 782
 783         return res;
 784 }
 785
 786 /* attributeType inheritance */
 787 struct supad2at_t {
 788         backsql_at_map_rec      **ret;
 789         AttributeDescription    *ad;
 790         unsigned                n;
 791 };
 792
 793 #define SUPAD2AT_STOP   (-1)
 794
 795 static int
 796 supad2at_f( void *v_at, void *v_arg )
 797 {
 798         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 799         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 800
 801         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 802                 backsql_at_map_rec      **ret = NULL;
 803                 unsigned                i;
 804
 805                 /* if already listed, holler! (should never happen) */
 806                 if ( va->ret ) {
 807                         for ( i = 0; i < va->n; i++ ) {
 808                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 809                                         break;
 810                                 }
 811                         }
 812
 813                         if ( i < va->n ) {
 814                                 return 0;
 815                         }
 816                 }
 817
 818                 ret = ch_realloc( va->ret,
 819                                 sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) );
 820                 if ( ret == NULL ) {
 821                         ch_free( va->ret );
 822                         va->ret = NULL;
 823                         va->n = 0;
 824                         return SUPAD2AT_STOP;
 825                 }
 826
 827                 ret[ va->n ] = at;
 828                 va->n++;
 829                 ret[ va->n ] = NULL;
 830                 va->ret = ret;
 831         }
 832
 833         return 0;
 834 }
 835
 836 /*
 837  * stores in *pret a NULL terminated array of pointers
 838  * to backsql_at_map_rec whose attributeType is supad->ad_type
 839  * or derived from it
 840  */
 841 int
 842 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 843                 backsql_at_map_rec ***pret )
 844 {
 845         struct supad2at_t       va = { 0 };
 846         int                     rc;
 847
 848         assert( objclass != NULL );
 849         assert( supad != NULL );
 850         assert( pret != NULL );
 851
 852         *pret = NULL;
 853
 854         va.ad = supad;
 855
 856         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 857                         SUPAD2AT_STOP, AVL_INORDER );
 858         if ( rc == SUPAD2AT_STOP ) {
 859                 return -1;
 860         }
 861
 862         *pret = va.ret;
 863
 864         return 0;
 865 }
 866
 867 static void
 868 backsql_free_attr( void *v_at )
 869 {
 870         backsql_at_map_rec      *at = v_at;
 871
 872         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 873                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 874         ch_free( at->bam_sel_expr.bv_val );
 875         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 876                 ch_free( at->bam_from_tbls.bv_val );
 877         }
 878         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 879                 ch_free( at->bam_join_where.bv_val );
 880         }
 881         if ( at->bam_add_proc != NULL ) {
 882                 ch_free( at->bam_add_proc );
 883         }
 884         if ( at->bam_delete_proc != NULL ) {
 885                 ch_free( at->bam_delete_proc );
 886         }
 887         if ( at->bam_query != NULL ) {
 888                 ch_free( at->bam_query );
 889         }
 890
 891 #ifdef BACKSQL_COUNTQUERY
 892         if ( at->bam_countquery != NULL ) {
 893                 ch_free( at->bam_countquery );
 894         }
 895 #endif /* BACKSQL_COUNTQUERY */
 896
 897         /* TimesTen */
 898         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 899                 ch_free( at->bam_sel_expr_u.bv_val );
 900         }
 901
 902         if ( at->bam_next ) {
 903                 backsql_free_attr( at->bam_next );
 904         }
 905
 906         ch_free( at );
 907
 908         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 909 }
 910
 911 static void
 912 backsql_free_oc( void *v_oc )
 913 {
 914         backsql_oc_map_rec      *oc = v_oc;
 915
 916         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 917                         BACKSQL_OC_NAME( oc ), 0, 0 );
 918         avl_free( oc->bom_attrs, backsql_free_attr );
 919         ch_free( oc->bom_keytbl.bv_val );
 920         ch_free( oc->bom_keycol.bv_val );
 921         if ( oc->bom_create_proc != NULL ) {
 922                 ch_free( oc->bom_create_proc );
 923         }
 924         if ( oc->bom_create_keyval != NULL ) {
 925                 ch_free( oc->bom_create_keyval );
 926         }
 927         if ( oc->bom_delete_proc != NULL ) {
 928                 ch_free( oc->bom_delete_proc );
 929         }
 930         ch_free( oc );
 931
 932         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 933 }
 934
 935 int
 936 backsql_destroy_schema_map( backsql_info *bi )
 937 {
 938         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 939         avl_free( bi->sql_oc_by_oc, 0 );
 940         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 941         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 942         return 0;
 943 }
 944