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 1999-2004 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by Dmitry Kovalev for inclusion
  18  * by OpenLDAP Software.
  19  */
  20
  21 #include "portable.h"
  22
  23 #ifdef SLAPD_SQL
  24
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include "ac/string.h"
  28
  29 #include "slap.h"
  30 #include "proto-sql.h"
  31
  32 #define BACKSQL_DUPLICATE       (-1)
  33
  34 /* NOTE: by default, cannot just compare pointers because
  35  * objectClass/attributeType order would be machine-dependent
  36  * (and tests would fail!); however, if you don't want to run
  37  * tests, or see attributeTypes written in the same order
  38  * they are defined, define */
  39 /* #undef BACKSQL_USE_PTR_CMP */
  40
  41 /*
  42  * Uses the pointer to the ObjectClass structure
  43  */
  44 static int
  45 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  46 {
  47         const backsql_oc_map_rec        *m1 = v_m1,
  48                                         *m2 = v_m2;
  49
  50 #ifdef BACKSQL_USE_PTR_CMP
  51         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  52 #else /* ! BACKSQL_USE_PTR_CMP */
  53         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  54 #endif /* ! BACKSQL_USE_PTR_CMP */
  55 }
  56
  57 static int
  58 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  59 {
  60         const backsql_oc_map_rec        *m1 = v_m1,
  61                                         *m2 = v_m2;
  62
  63         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  64 }
  65
  66 /*
  67  * Uses the pointer to the AttributeDescription structure
  68  */
  69 static int
  70 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  71 {
  72         const backsql_at_map_rec        *m1 = v_m1,
  73                                         *m2 = v_m2;
  74
  75 #ifdef BACKSQL_USE_PTR_CMP
  76         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  77 #else /* ! BACKSQL_USE_PTR_CMP */
  78         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  79 #endif /* ! BACKSQL_USE_PTR_CMP */
  80 }
  81
  82 int
  83 backsql_dup_attr( void *v_m1, void *v_m2 )
  84 {
  85         backsql_at_map_rec              *m1 = v_m1,
  86                                         *m2 = v_m2;
  87
  88         assert( m1->bam_ad == m2->bam_ad );
  89
  90         /* duplicate definitions of attributeTypes are appended;
  91          * this allows to define multiple rules for the same
  92          * attributeType.  Use with care! */
  93         for ( ; m1->bam_next ; m1 = m1->bam_next );
  94         m1->bam_next = m2;
  95         m2->bam_next = NULL;
  96
  97         return BACKSQL_DUPLICATE;
  98 }
  99
 100 static int
 101 backsql_make_attr_query(
 102         backsql_oc_map_rec      *oc_map,
 103         backsql_at_map_rec      *at_map )
 104 {
 105         struct berbuf   bb = BB_NULL;
 106
 107 #ifdef BACKSQL_ALIASING_QUOTE
 108         backsql_strfcat( &bb, "lblcbclblbcbl",
 109                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 110                         &at_map->bam_sel_expr,
 111                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 112                         BACKSQL_ALIASING_QUOTE,
 113                         &at_map->bam_ad->ad_cname,
 114                         BACKSQL_ALIASING_QUOTE,
 115                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 116                         &at_map->bam_from_tbls,
 117                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 118                         &oc_map->bom_keytbl,
 119                         '.',
 120                         &oc_map->bom_keycol,
 121                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 122 #else /* ! BACKSQL_ALIASING_QUOTE */
 123         backsql_strfcat( &bb, "lblblblbcbl",
 124                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 125                         &at_map->bam_sel_expr,
 126                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 127                         &at_map->bam_ad->ad_cname,
 128                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 129                         &at_map->bam_from_tbls,
 130                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 131                         &oc_map->bom_keytbl,
 132                         '.',
 133                         &oc_map->bom_keycol,
 134                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 135 #endif /* ! BACKSQL_ALIASING_QUOTE */
 136
 137         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 138                 backsql_strfcat( &bb, "lb",
 139                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 140                                 &at_map->bam_join_where );
 141         }
 142
 143 #ifdef BACKSQL_ALIASING_QUOTE
 144         backsql_strfcat( &bb, "lcbc",
 145                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 146                         BACKSQL_ALIASING_QUOTE,
 147                         &at_map->bam_sel_expr,
 148                         BACKSQL_ALIASING_QUOTE );
 149 #else /* ! BACKSQL_ALIASING_QUOTE */
 150         backsql_strfcat( &bb, "lb",
 151                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 152                         &at_map->bam_sel_expr );
 153 #endif /* ! BACKSQL_ALIASING_QUOTE */
 154
 155         at_map->bam_query = bb.bb_val.bv_val;
 156
 157         return 0;
 158 }
 159
 160 static int
 161 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 162 {
 163         backsql_at_map_rec      *at_map;
 164         char                    s[] = "+9223372036854775807L";
 165         struct berval           sbv;
 166         struct berbuf           bb;
 167
 168         sbv.bv_val = s;
 169         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 170         sbv.bv_len = strlen( s );
 171
 172         /* extra objectClasses */
 173         at_map = (backsql_at_map_rec *)ch_calloc(1,
 174                         sizeof( backsql_at_map_rec ) );
 175         at_map->bam_ad = slap_schema.si_ad_objectClass;
 176         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 177                         &at_map->bam_sel_expr );
 178         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 179                         &at_map->bam_from_tbls );
 180
 181         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 182         bb.bb_val = at_map->bam_from_tbls;
 183         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 184         at_map->bam_from_tbls = bb.bb_val;
 185
 186         BER_BVZERO( &bb.bb_val );
 187         bb.bb_len = 0;
 188         backsql_strfcat( &bb, "lbcblb",
 189                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 190                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 191                         &oc_map->bom_keytbl,
 192                         '.',
 193                         &oc_map->bom_keycol,
 194                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 195                                 " and ldap_entries.oc_map_id=",
 196                         &sbv );
 197         at_map->bam_join_where = bb.bb_val;
 198
 199         at_map->bam_oc = oc_map->bom_oc;
 200
 201         at_map->bam_add_proc = NULL;
 202         {
 203                 char    tmp[] =
 204                         "INSERT INTO ldap_entry_objclasses "
 205                         "(entry_id,oc_name) VALUES "
 206                         "((SELECT id FROM ldap_entries "
 207                         "WHERE oc_map_id="
 208                         "18446744073709551615UL "       /* 64 bit ULONG */
 209                         "AND keyval=?),?)";
 210                 snprintf( tmp, sizeof(tmp),
 211                         "INSERT INTO ldap_entry_objclasses "
 212                         "(entry_id,oc_name) VALUES "
 213                         "((SELECT id FROM ldap_entries "
 214                         "WHERE oc_map_id=%lu "
 215                         "AND keyval=?),?)", oc_map->bom_id );
 216                 at_map->bam_add_proc = ch_strdup( tmp );
 217         }
 218
 219         at_map->bam_delete_proc = NULL;
 220         {
 221                 char    tmp[] =
 222                         "DELETE FROM ldap_entry_objclasses "
 223                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 224                         "WHERE oc_map_id="
 225                         "18446744073709551615UL "       /* 64 bit ULONG */
 226                         "AND keyval=?) AND oc_name=?";
 227                 snprintf( tmp, sizeof(tmp),
 228                         "DELETE FROM ldap_entry_objclasses "
 229                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 230                         "WHERE oc_map_id=%lu"
 231                         "AND keyval=?) AND oc_name=?",
 232                         oc_map->bom_id );
 233                 at_map->bam_delete_proc = ch_strdup( tmp );
 234         }
 235
 236         at_map->bam_param_order = 0;
 237         at_map->bam_expect_return = 0;
 238         at_map->bam_next = NULL;
 239
 240         backsql_make_attr_query( oc_map, at_map );
 241         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 242                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 243                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 244                                 at_map->bam_ad->ad_cname.bv_val,
 245                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 246         }
 247
 248         /* FIXME: we need to correct the objectClass join_where
 249          * after the attribute query is built */
 250         ch_free( at_map->bam_join_where.bv_val );
 251         BER_BVZERO( &bb.bb_val );
 252         bb.bb_len = 0;
 253         backsql_strfcat( &bb, "lbcblb",
 254                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 255                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 256                         &oc_map->bom_keytbl,
 257                         '.',
 258                         &oc_map->bom_keycol,
 259                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 260                                 " AND ldap_entries.oc_map_id=",
 261                         &sbv );
 262         at_map->bam_join_where = bb.bb_val;
 263
 264         /* referral attribute */
 265         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 266                         sizeof( backsql_at_map_rec ) );
 267         at_map->bam_ad = slap_schema.si_ad_ref;
 268         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 269         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 270
 271         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 272         bb.bb_val = at_map->bam_from_tbls;
 273         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 274         at_map->bam_from_tbls = bb.bb_val;
 275
 276         BER_BVZERO( &bb.bb_val );
 277         bb.bb_len = 0;
 278         backsql_strfcat( &bb, "lbcblb",
 279                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 280                                 "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=",
 281                         &oc_map->bom_keytbl,
 282                         '.',
 283                         &oc_map->bom_keycol,
 284                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 285                                 " AND ldap_entries.oc_map_id=",
 286                         &sbv );
 287
 288         at_map->bam_join_where = bb.bb_val;
 289
 290         at_map->bam_oc = NULL;
 291
 292         at_map->bam_add_proc = NULL;
 293         {
 294                 char    tmp[] =
 295                         "INSERT INTO ldap_referrals "
 296                         "(entry_id,url) VALUES "
 297                         "((SELECT id FROM ldap_entries "
 298                         "WHERE oc_map_id="
 299                         "18446744073709551615UL "       /* 64 bit ULONG */
 300                         "AND keyval=?),?)";
 301                 snprintf( tmp, sizeof(tmp),
 302                         "INSERT INTO ldap_referrals "
 303                         "(entry_id,url) VALUES "
 304                         "((SELECT id FROM ldap_entries "
 305                         "WHERE oc_map_id=%lu "
 306                         "AND keyval=?),?)", oc_map->bom_id );
 307                 at_map->bam_add_proc = ch_strdup( tmp );
 308         }
 309
 310         at_map->bam_delete_proc = NULL;
 311         {
 312                 char    tmp[] =
 313                         "DELETE FROM ldap_referrals "
 314                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 315                         "WHERE oc_map_id="
 316                         "18446744073709551615UL "       /* 64 bit ULONG */
 317                         "AND keyval=?) and url=?";
 318                 snprintf( tmp, sizeof(tmp),
 319                         "DELETE FROM ldap_referrals "
 320                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 321                         "WHERE oc_map_id=%lu"
 322                         "AND keyval=?) and url=?",
 323                         oc_map->bom_id );
 324                 at_map->bam_delete_proc = ch_strdup( tmp );
 325         }
 326
 327         at_map->bam_param_order = 0;
 328         at_map->bam_expect_return = 0;
 329         at_map->bam_next = NULL;
 330
 331         backsql_make_attr_query( oc_map, at_map );
 332         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 333                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 334                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 335                                 at_map->bam_ad->ad_cname.bv_val,
 336                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 337         }
 338
 339         return 1;
 340 }
 341
 342 struct backsql_attr_schema_info {
 343         backsql_info    *bas_bi;
 344         SQLHDBC         bas_dbh;
 345         SQLHSTMT        bas_sth;
 346         unsigned long   *bas_oc_id;
 347         int             bas_rc;
 348 };
 349
 350 static int
 351 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 352 {
 353         RETCODE                         rc;
 354         BACKSQL_ROW_NTS                 at_row;
 355         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 356         backsql_at_map_rec              *at_map;
 357         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 358
 359         /* bas->bas_oc_id has been bound to bas->bas_sth */
 360         *bas->bas_oc_id = oc_map->bom_id;
 361
 362         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 363                 "executing at_query\n"
 364                 "    \"%s\"\n"
 365                 "    for objectClass \"%s\"\n"
 366                 "    with param oc_id=\"%lu\"\n",
 367                 bas->bas_bi->sql_at_query,
 368                 BACKSQL_OC_NAME( oc_map ),
 369                 *bas->bas_oc_id );
 370
 371         rc = SQLExecute( bas->bas_sth );
 372         if ( rc != SQL_SUCCESS ) {
 373                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 374                         "error executing at_query\n"
 375                         "    \"%s\"\n"
 376                         "    for objectClass \"%s\"\n"
 377                         "    with param oc_id=\"%lu\"\n",
 378                         bas->bas_bi->sql_at_query,
 379                         BACKSQL_OC_NAME( oc_map ),
 380                         *bas->bas_oc_id );
 381                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 382                                 bas->bas_dbh, bas->bas_sth, rc );
 383                 bas->bas_rc = LDAP_OTHER;
 384                 return BACKSQL_AVL_STOP;
 385         }
 386
 387         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 388         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 389                 const char      *text = NULL;
 390                 struct berval   bv;
 391                 struct berbuf   bb = BB_NULL;
 392
 393                 Debug( LDAP_DEBUG_TRACE,
 394                         "attributeType:\n"
 395                         "\tname=\"%s\"\n"
 396                         "\tsel_expr=\"%s\"\n"
 397                         "\tfrom=\"%s\"\n",
 398                         at_row.cols[ 0 ], at_row.cols[ 1 ],
 399                         at_row.cols[ 2 ] );
 400                 Debug( LDAP_DEBUG_TRACE,
 401                         "\tjoin_where=\"%s\"\n"
 402                         "\tadd_proc=\"%s\"\n"
 403                         "\tdelete_proc=\"%s\"\n",
 404                         at_row.cols[ 3 ], at_row.cols[ 4 ],
 405                         at_row.cols[ 5 ]);
 406                 /* TimesTen */
 407                 Debug( LDAP_DEBUG_TRACE, "\tsel_expr_u=\"%s\"\n",
 408                                 at_row.cols[ 8 ], 0, 0 );
 409                 at_map = (backsql_at_map_rec *)ch_calloc( 1,
 410                                 sizeof( backsql_at_map_rec ) );
 411                 rc = slap_str2ad( at_row.cols[ 0 ],
 412                                 &at_map->bam_ad, &text );
 413                 if ( rc != LDAP_SUCCESS ) {
 414                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 415                                 "attribute \"%s\" for objectClass \"%s\" "
 416                                 "is not defined in schema: %s\n",
 417                                 at_row.cols[ 0 ],
 418                                 BACKSQL_OC_NAME( oc_map ), text );
 419                         bas->bas_rc = LDAP_CONSTRAINT_VIOLATION;
 420                         return BACKSQL_AVL_STOP;
 421                 }
 422
 423                 ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr );
 424                 if ( at_row.value_len[ 8 ] < 0 ) {
 425                         BER_BVZERO( &at_map->bam_sel_expr_u );
 426
 427                 } else {
 428                         ber_str2bv( at_row.cols[ 8 ], 0, 1,
 429                                         &at_map->bam_sel_expr_u );
 430                 }
 431
 432                 ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv );
 433                 backsql_merge_from_clause( &bb, &bv );
 434                 at_map->bam_from_tbls = bb.bb_val;
 435                 if ( at_row.value_len[ 3 ] < 0 ) {
 436                         BER_BVZERO( &at_map->bam_join_where );
 437
 438                 } else {
 439                         ber_str2bv( at_row.cols[ 3 ], 0, 1,
 440                                         &at_map->bam_join_where );
 441                 }
 442                 at_map->bam_add_proc = NULL;
 443                 if ( at_row.value_len[ 4 ] > 0 ) {
 444                         at_map->bam_add_proc = ch_strdup( at_row.cols[4] );
 445                 }
 446                 at_map->bam_delete_proc = NULL;
 447                 if ( at_row.value_len[ 5 ] > 0 ) {
 448                         at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] );
 449                 }
 450                 at_map->bam_param_order = strtol( at_row.cols[ 6 ],
 451                                 NULL, 0 );
 452                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 453                                 NULL, 0 );
 454                 backsql_make_attr_query( oc_map, at_map );
 455                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 456                         "preconstructed query \"%s\"\n",
 457                         at_map->bam_query, 0, 0 );
 458                 at_map->bam_next = NULL;
 459                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 460                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 461                                         "duplicate attribute \"%s\" "
 462                                         "in objectClass \"%s\" map\n",
 463                                         at_map->bam_ad->ad_cname.bv_val,
 464                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 465                 }
 466
 467                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 468                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 469                 {
 470                         struct berbuf   bb = BB_NULL;
 471
 472                         backsql_strfcat( &bb, "bcbc",
 473                                         &bas->bas_bi->sql_upper_func,
 474                                         '(' /* ) */ ,
 475                                         &at_map->bam_sel_expr,
 476                                         /* ( */ ')' );
 477                         at_map->bam_sel_expr_u = bb.bb_val;
 478                 }
 479         }
 480         backsql_FreeRow( &at_row );
 481         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 482
 483         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 484                 "autoadding 'objectClass' and 'ref' mappings\n",
 485                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 486
 487         (void)backsql_add_sysmaps( oc_map );
 488
 489         return BACKSQL_AVL_CONTINUE;
 490 }
 491
 492
 493 int
 494 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 495 {
 496         SQLHSTMT                        sth;
 497         RETCODE                         rc;
 498         BACKSQL_ROW_NTS                 oc_row;
 499         unsigned long                   oc_id;
 500         backsql_oc_map_rec              *oc_map;
 501         struct backsql_attr_schema_info bas;
 502
 503         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 504
 505         /*
 506          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 507          */
 508         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 509                 rc = backsql_Prepare( dbh, &sth,
 510                                 backsql_check_dn_ru_query, 0 );
 511                 if ( rc == SQL_SUCCESS ) {
 512                         /* Yes, the field exists */
 513                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 514                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 515                                 "in the schema\n", 0, 0, 0 );
 516                 } else {
 517                         /* No such field exists */
 518                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 519                 }
 520
 521                 SQLFreeStmt( sth, SQL_DROP );
 522         }
 523
 524         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 525                         bi->sql_oc_query, 0, 0 );
 526
 527         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 528         if ( rc != SQL_SUCCESS ) {
 529                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 530                         "error preparing oc_query: \"%s\"\n",
 531                         bi->sql_oc_query, 0, 0 );
 532                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 533                 return LDAP_OTHER;
 534         }
 535
 536         rc = SQLExecute( sth );
 537         if ( rc != SQL_SUCCESS ) {
 538                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 539                         "error executing oc_query: \n", 0, 0, 0 );
 540                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 541                 return LDAP_OTHER;
 542         }
 543
 544         backsql_BindRowAsStrings( sth, &oc_row );
 545         rc = SQLFetch( sth );
 546         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 547                 int     colnum;
 548
 549                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 550                                 sizeof( backsql_oc_map_rec ) );
 551
 552                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 553
 554                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 555                 if ( oc_map->bom_oc == NULL ) {
 556                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 557                                 "objectClass \"%s\" is not defined in schema\n",
 558                                 oc_row.cols[ 1 ], 0, 0 );
 559                         return LDAP_OTHER;      /* undefined objectClass ? */
 560                 }
 561
 562                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 563                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 564                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 565                         : ch_strdup( oc_row.cols[ 4 ] );
 566
 567                 colnum = 5;
 568                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 569                         colnum = 6;
 570                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 571                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 572                 }
 573                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 574                         : ch_strdup( oc_row.cols[ colnum ] );
 575                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 576                                 NULL, 0 );
 577
 578                 /*
 579                  * FIXME: first attempt to check for offending
 580                  * instructions in {create|delete}_proc
 581                  */
 582
 583                 oc_map->bom_attrs = NULL;
 584                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 585                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 586                                         "duplicate objectClass \"%s\" in objectClass map\n",
 587                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 588                         return LDAP_OTHER;
 589                 }
 590                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 591                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 592                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 593                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 594                         return LDAP_OTHER;
 595                 }
 596                 oc_id = oc_map->bom_id;
 597                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 598                         "objectClass \"%s\": keytbl=\"%s\" keycol=\"%s\"\n",
 599                         BACKSQL_OC_NAME( oc_map ),
 600                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 601                 if ( oc_map->bom_create_proc ) {
 602                         Debug( LDAP_DEBUG_TRACE, "create_proc=\"%s\"\n",
 603                                 oc_map->bom_create_proc, 0, 0 );
 604                 }
 605                 if ( oc_map->bom_create_keyval ) {
 606                         Debug( LDAP_DEBUG_TRACE, "create_keyval=\"%s\"\n",
 607                                 oc_map->bom_create_keyval, 0, 0 );
 608                 }
 609                 if ( oc_map->bom_delete_proc ) {
 610                         Debug( LDAP_DEBUG_TRACE, "delete_proc=\"%s\"\n",
 611                                 oc_map->bom_delete_proc, 0, 0 );
 612                 }
 613                 Debug( LDAP_DEBUG_TRACE, "expect_return: "
 614                         "add=%d, del=%d; attributes:\n",
 615                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 616                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 617         }
 618
 619         backsql_FreeRow( &oc_row );
 620         SQLFreeStmt( sth, SQL_DROP );
 621
 622         /* prepare for attribute fetching */
 623         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 624                         bi->sql_at_query, 0, 0 );
 625
 626         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 627         if ( rc != SQL_SUCCESS ) {
 628                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 629                         "error preparing at_query: \"%s\"\n",
 630                         bi->sql_at_query, 0, 0 );
 631                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 632                 return LDAP_OTHER;
 633         }
 634
 635         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 636         if ( rc != SQL_SUCCESS ) {
 637                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 638                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 639                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 640                 SQLFreeStmt( sth, SQL_DROP );
 641                 return LDAP_OTHER;
 642         }
 643
 644         bas.bas_bi = bi;
 645         bas.bas_dbh = dbh;
 646         bas.bas_sth = sth;
 647         bas.bas_oc_id = &oc_id;
 648         bas.bas_rc = LDAP_SUCCESS;
 649
 650         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 651                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 652
 653         SQLFreeStmt( sth, SQL_DROP );
 654
 655         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 656
 657         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 658
 659         return bas.bas_rc;
 660 }
 661
 662 backsql_oc_map_rec *
 663 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 664 {
 665         backsql_oc_map_rec      tmp, *res;
 666
 667 #ifdef BACKSQL_TRACE
 668         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 669                 "searching for objectclass with name=\"%s\"\n",
 670                 oc->soc_cname.bv_val, 0, 0 );
 671 #endif /* BACKSQL_TRACE */
 672
 673         tmp.bom_oc = oc;
 674         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 675 #ifdef BACKSQL_TRACE
 676         if ( res != NULL ) {
 677                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 678                         "found name=\"%s\", id=%d\n",
 679                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 680         } else {
 681                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 682                         "not found\n", 0, 0, 0 );
 683         }
 684 #endif /* BACKSQL_TRACE */
 685
 686         return res;
 687 }
 688
 689 backsql_oc_map_rec *
 690 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 691 {
 692         backsql_oc_map_rec      tmp, *res;
 693
 694 #ifdef BACKSQL_TRACE
 695         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 696                 "searching for objectclass with name=\"%s\"\n",
 697                 oc_name->bv_val, 0, 0 );
 698 #endif /* BACKSQL_TRACE */
 699
 700         tmp.bom_oc = oc_bvfind( oc_name );
 701         if ( tmp.bom_oc == NULL ) {
 702                 return NULL;
 703         }
 704
 705         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 706 #ifdef BACKSQL_TRACE
 707         if ( res != NULL ) {
 708                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 709                         "found name=\"%s\", id=%d\n",
 710                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 711         } else {
 712                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 713                         "not found\n", 0, 0, 0 );
 714         }
 715 #endif /* BACKSQL_TRACE */
 716
 717         return res;
 718 }
 719
 720 backsql_oc_map_rec *
 721 backsql_id2oc( backsql_info *bi, unsigned long id )
 722 {
 723         backsql_oc_map_rec      tmp, *res;
 724
 725 #ifdef BACKSQL_TRACE
 726         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 727                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 728 #endif /* BACKSQL_TRACE */
 729
 730         tmp.bom_id = id;
 731         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 732                         backsql_cmp_oc_id );
 733
 734 #ifdef BACKSQL_TRACE
 735         if ( res != NULL ) {
 736                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 737                         "found name=\"%s\", id=%d\n",
 738                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 739         } else {
 740                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 741                         "not found\n", 0, 0, 0 );
 742         }
 743 #endif /* BACKSQL_TRACE */
 744
 745         return res;
 746 }
 747
 748 backsql_at_map_rec *
 749 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 750 {
 751         backsql_at_map_rec      tmp, *res;
 752
 753 #ifdef BACKSQL_TRACE
 754         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 755                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 756                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 757 #endif /* BACKSQL_TRACE */
 758
 759         tmp.bam_ad = ad;
 760         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 761                         backsql_cmp_attr );
 762
 763 #ifdef BACKSQL_TRACE
 764         if ( res != NULL ) {
 765                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 766                         "found name=\"%s\", sel_expr=\"%s\"\n",
 767                         res->bam_ad->ad_cname.bv_val,
 768                         res->bam_sel_expr.bv_val, 0 );
 769         } else {
 770                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 771                         "not found\n", 0, 0, 0 );
 772         }
 773 #endif /* BACKSQL_TRACE */
 774
 775         return res;
 776 }
 777
 778 /* attributeType inheritance */
 779 struct supad2at_t {
 780         backsql_at_map_rec      **ret;
 781         AttributeDescription    *ad;
 782         unsigned                n;
 783 };
 784
 785 #define SUPAD2AT_STOP   (-1)
 786
 787 static int
 788 supad2at_f( void *v_at, void *v_arg )
 789 {
 790         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 791         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 792
 793         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 794                 backsql_at_map_rec      **ret;
 795                 unsigned                i;
 796
 797                 /* if already listed, holler! (should never happen) */
 798                 if ( va->ret ) {
 799                         for ( i = 0; i < va->n; i++ ) {
 800                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 801                                         break;
 802                                 }
 803                         }
 804
 805                         if ( i < va->n ) {
 806                                 return 0;
 807                         }
 808                 }
 809
 810                 ret = ch_realloc( va->ret,
 811                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 812                 if ( ret == NULL ) {
 813                         ch_free( va->ret );
 814                         return SUPAD2AT_STOP;
 815                 }
 816
 817                 ret[ va->n ] = at;
 818                 va->n++;
 819                 ret[ va->n ] = NULL;
 820                 va->ret = ret;
 821         }
 822
 823         return 0;
 824 }
 825
 826 /*
 827  * stores in *pret a NULL terminated array of pointers
 828  * to backsql_at_map_rec whose attributeType is supad->ad_type
 829  * or derived from it
 830  */
 831 int
 832 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 833                 backsql_at_map_rec ***pret )
 834 {
 835         struct supad2at_t       va;
 836         int                     rc;
 837
 838         assert( objclass );
 839         assert( supad );
 840         assert( pret );
 841
 842         *pret = NULL;
 843
 844         va.ret = NULL;
 845         va.ad = supad;
 846         va.n = 0;
 847
 848         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 849                         SUPAD2AT_STOP, AVL_INORDER );
 850         if ( rc == SUPAD2AT_STOP ) {
 851                 return -1;
 852         }
 853
 854         *pret = va.ret;
 855
 856         return 0;
 857 }
 858
 859 static void
 860 backsql_free_attr( void *v_at )
 861 {
 862         backsql_at_map_rec      *at = v_at;
 863
 864         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 865                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 866         ch_free( at->bam_sel_expr.bv_val );
 867         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 868                 ch_free( at->bam_from_tbls.bv_val );
 869         }
 870         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 871                 ch_free( at->bam_join_where.bv_val );
 872         }
 873         if ( at->bam_add_proc != NULL ) {
 874                 ch_free( at->bam_add_proc );
 875         }
 876         if ( at->bam_delete_proc != NULL ) {
 877                 ch_free( at->bam_delete_proc );
 878         }
 879         if ( at->bam_query ) {
 880                 ch_free( at->bam_query );
 881         }
 882
 883         /* TimesTen */
 884         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 885                 ch_free( at->bam_sel_expr_u.bv_val );
 886         }
 887
 888         if ( at->bam_next ) {
 889                 backsql_free_attr( at->bam_next );
 890         }
 891
 892         ch_free( at );
 893
 894         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 895 }
 896
 897 static void
 898 backsql_free_oc( void *v_oc )
 899 {
 900         backsql_oc_map_rec      *oc = v_oc;
 901
 902         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 903                         BACKSQL_OC_NAME( oc ), 0, 0 );
 904         avl_free( oc->bom_attrs, backsql_free_attr );
 905         ch_free( oc->bom_keytbl.bv_val );
 906         ch_free( oc->bom_keycol.bv_val );
 907         if ( oc->bom_create_proc != NULL ) {
 908                 ch_free( oc->bom_create_proc );
 909         }
 910         if ( oc->bom_create_keyval != NULL ) {
 911                 ch_free( oc->bom_create_keyval );
 912         }
 913         if ( oc->bom_delete_proc != NULL ) {
 914                 ch_free( oc->bom_delete_proc );
 915         }
 916         ch_free( oc );
 917
 918         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 919 }
 920
 921 int
 922 backsql_destroy_schema_map( backsql_info *bi )
 923 {
 924         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 925         avl_free( bi->sql_oc_by_oc, 0 );
 926         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 927         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 928         return 0;
 929 }
 930
 931 #endif /* SLAPD_SQL */
 932