git.sur5r.net Git - openldap/blob - servers/slapd/back-sql/schema-map.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2004 Mark Adamson.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Dmitry Kovalev for inclusion
  19  * by OpenLDAP Software.
  20  */
  21
  22 #include "portable.h"
  23
  24 #include <stdio.h>
  25 #include <sys/types.h>
  26 #include "ac/string.h"
  27
  28 #include "slap.h"
  29 #include "proto-sql.h"
  30
  31 #define BACKSQL_DUPLICATE       (-1)
  32
  33 /* NOTE: by default, cannot just compare pointers because
  34  * objectClass/attributeType order would be machine-dependent
  35  * (and tests would fail!); however, if you don't want to run
  36  * tests, or see attributeTypes written in the same order
  37  * they are defined, define */
  38 /* #undef BACKSQL_USE_PTR_CMP */
  39
  40 /*
  41  * Uses the pointer to the ObjectClass structure
  42  */
  43 static int
  44 backsql_cmp_oc( const void *v_m1, const void *v_m2 )
  45 {
  46         const backsql_oc_map_rec        *m1 = v_m1,
  47                                         *m2 = v_m2;
  48
  49 #ifdef BACKSQL_USE_PTR_CMP
  50         return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc );
  51 #else /* ! BACKSQL_USE_PTR_CMP */
  52         return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname );
  53 #endif /* ! BACKSQL_USE_PTR_CMP */
  54 }
  55
  56 static int
  57 backsql_cmp_oc_id( const void *v_m1, const void *v_m2 )
  58 {
  59         const backsql_oc_map_rec        *m1 = v_m1,
  60                                         *m2 = v_m2;
  61
  62         return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) );
  63 }
  64
  65 /*
  66  * Uses the pointer to the AttributeDescription structure
  67  */
  68 static int
  69 backsql_cmp_attr( const void *v_m1, const void *v_m2 )
  70 {
  71         const backsql_at_map_rec        *m1 = v_m1,
  72                                         *m2 = v_m2;
  73
  74 #ifdef BACKSQL_USE_PTR_CMP
  75         return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad );
  76 #else /* ! BACKSQL_USE_PTR_CMP */
  77         return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname );
  78 #endif /* ! BACKSQL_USE_PTR_CMP */
  79 }
  80
  81 int
  82 backsql_dup_attr( void *v_m1, void *v_m2 )
  83 {
  84         backsql_at_map_rec              *m1 = v_m1,
  85                                         *m2 = v_m2;
  86
  87         assert( m1->bam_ad == m2->bam_ad );
  88
  89         /* duplicate definitions of attributeTypes are appended;
  90          * this allows to define multiple rules for the same
  91          * attributeType.  Use with care! */
  92         for ( ; m1->bam_next ; m1 = m1->bam_next );
  93         m1->bam_next = m2;
  94         m2->bam_next = NULL;
  95
  96         return BACKSQL_DUPLICATE;
  97 }
  98
  99 static int
 100 backsql_make_attr_query(
 101         backsql_oc_map_rec      *oc_map,
 102         backsql_at_map_rec      *at_map )
 103 {
 104         struct berbuf   bb = BB_NULL;
 105
 106 #ifdef BACKSQL_ALIASING_QUOTE
 107         backsql_strfcat( &bb, "lblcbclblbcbl",
 108                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 109                         &at_map->bam_sel_expr,
 110                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 111                         BACKSQL_ALIASING_QUOTE,
 112                         &at_map->bam_ad->ad_cname,
 113                         BACKSQL_ALIASING_QUOTE,
 114                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 115                         &at_map->bam_from_tbls,
 116                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 117                         &oc_map->bom_keytbl,
 118                         '.',
 119                         &oc_map->bom_keycol,
 120                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 121 #else /* ! BACKSQL_ALIASING_QUOTE */
 122         backsql_strfcat( &bb, "lblblblbcbl",
 123                         (ber_len_t)STRLENOF( "SELECT " ), "SELECT ",
 124                         &at_map->bam_sel_expr,
 125                         (ber_len_t)STRLENOF( " " BACKSQL_ALIASING ), " " BACKSQL_ALIASING,
 126                         &at_map->bam_ad->ad_cname,
 127                         (ber_len_t)STRLENOF( " FROM " ), " FROM ",
 128                         &at_map->bam_from_tbls,
 129                         (ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
 130                         &oc_map->bom_keytbl,
 131                         '.',
 132                         &oc_map->bom_keycol,
 133                         (ber_len_t)STRLENOF( "=?" ), "=?" );
 134 #endif /* ! BACKSQL_ALIASING_QUOTE */
 135
 136         if ( !BER_BVISNULL( &at_map->bam_join_where ) ) {
 137                 backsql_strfcat( &bb, "lb",
 138                                 (ber_len_t)STRLENOF( " AND " ), " AND ",
 139                                 &at_map->bam_join_where );
 140         }
 141
 142 #ifdef BACKSQL_ALIASING_QUOTE
 143         backsql_strfcat( &bb, "lcbc",
 144                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 145                         BACKSQL_ALIASING_QUOTE,
 146                         &at_map->bam_sel_expr,
 147                         BACKSQL_ALIASING_QUOTE );
 148 #else /* ! BACKSQL_ALIASING_QUOTE */
 149         backsql_strfcat( &bb, "lb",
 150                         (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ",
 151                         &at_map->bam_sel_expr );
 152 #endif /* ! BACKSQL_ALIASING_QUOTE */
 153
 154         at_map->bam_query = bb.bb_val.bv_val;
 155
 156         return 0;
 157 }
 158
 159 static int
 160 backsql_add_sysmaps( backsql_oc_map_rec *oc_map )
 161 {
 162         backsql_at_map_rec      *at_map;
 163         char                    s[] = "+9223372036854775807L";
 164         struct berval           sbv;
 165         struct berbuf           bb;
 166
 167         sbv.bv_val = s;
 168         snprintf( s, sizeof( s ), "%ld", oc_map->bom_id );
 169         sbv.bv_len = strlen( s );
 170
 171         /* extra objectClasses */
 172         at_map = (backsql_at_map_rec *)ch_calloc(1,
 173                         sizeof( backsql_at_map_rec ) );
 174         at_map->bam_ad = slap_schema.si_ad_objectClass;
 175         ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1,
 176                         &at_map->bam_sel_expr );
 177         ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1,
 178                         &at_map->bam_from_tbls );
 179
 180         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 181         bb.bb_val = at_map->bam_from_tbls;
 182         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 183         at_map->bam_from_tbls = bb.bb_val;
 184
 185         BER_BVZERO( &bb.bb_val );
 186         bb.bb_len = 0;
 187         backsql_strfcat( &bb, "lbcblb",
 188                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ),
 189                                 "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=",
 190                         &oc_map->bom_keytbl,
 191                         '.',
 192                         &oc_map->bom_keycol,
 193                         (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ),
 194                                 " and ldap_entries.oc_map_id=",
 195                         &sbv );
 196         at_map->bam_join_where = bb.bb_val;
 197
 198         at_map->bam_oc = oc_map->bom_oc;
 199
 200         at_map->bam_add_proc = NULL;
 201         {
 202                 char    tmp[] =
 203                         "INSERT INTO ldap_entry_objclasses "
 204                         "(entry_id,oc_name) VALUES "
 205                         "((SELECT id FROM ldap_entries "
 206                         "WHERE oc_map_id="
 207                         "18446744073709551615UL "       /* 64 bit ULONG */
 208                         "AND keyval=?),?)";
 209                 snprintf( tmp, sizeof(tmp),
 210                         "INSERT INTO ldap_entry_objclasses "
 211                         "(entry_id,oc_name) VALUES "
 212                         "((SELECT id FROM ldap_entries "
 213                         "WHERE oc_map_id=%lu "
 214                         "AND keyval=?),?)", oc_map->bom_id );
 215                 at_map->bam_add_proc = ch_strdup( tmp );
 216         }
 217
 218         at_map->bam_delete_proc = NULL;
 219         {
 220                 char    tmp[] =
 221                         "DELETE FROM ldap_entry_objclasses "
 222                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 223                         "WHERE oc_map_id="
 224                         "18446744073709551615UL "       /* 64 bit ULONG */
 225                         "AND keyval=?) AND oc_name=?";
 226                 snprintf( tmp, sizeof(tmp),
 227                         "DELETE FROM ldap_entry_objclasses "
 228                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 229                         "WHERE oc_map_id=%lu"
 230                         "AND keyval=?) AND oc_name=?",
 231                         oc_map->bom_id );
 232                 at_map->bam_delete_proc = ch_strdup( tmp );
 233         }
 234
 235         at_map->bam_param_order = 0;
 236         at_map->bam_expect_return = 0;
 237         at_map->bam_next = NULL;
 238
 239         backsql_make_attr_query( oc_map, at_map );
 240         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 241                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 242                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 243                                 at_map->bam_ad->ad_cname.bv_val,
 244                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 245         }
 246
 247         /* FIXME: we need to correct the objectClass join_where
 248          * after the attribute query is built */
 249         ch_free( at_map->bam_join_where.bv_val );
 250         BER_BVZERO( &bb.bb_val );
 251         bb.bb_len = 0;
 252         backsql_strfcat( &bb, "lbcblb",
 253                         (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ),
 254                                 /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=",
 255                         &oc_map->bom_keytbl,
 256                         '.',
 257                         &oc_map->bom_keycol,
 258                         (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ),
 259                                 " AND ldap_entries.oc_map_id=",
 260                         &sbv );
 261         at_map->bam_join_where = bb.bb_val;
 262
 263         /* referral attribute */
 264         at_map = (backsql_at_map_rec *)ch_calloc( 1,
 265                         sizeof( backsql_at_map_rec ) );
 266         at_map->bam_ad = slap_schema.si_ad_ref;
 267         ber_str2bv( "ldap_referrals.url", 0, 1, &at_map->bam_sel_expr );
 268         ber_str2bv( "ldap_referrals,ldap_entries", 0, 1, &at_map->bam_from_tbls );
 269
 270         bb.bb_len = at_map->bam_from_tbls.bv_len + 1;
 271         bb.bb_val = at_map->bam_from_tbls;
 272         backsql_merge_from_clause( &bb, &oc_map->bom_keytbl );
 273         at_map->bam_from_tbls = bb.bb_val;
 274
 275         BER_BVZERO( &bb.bb_val );
 276         bb.bb_len = 0;
 277         backsql_strfcat( &bb, "lbcblb",
 278                         (ber_len_t)STRLENOF( "ldap_entries.id=ldap_referrals.entry_id AND ldap_entries.keyval=" ),
 279                                 "ldap_entries.id=ldap_referrals.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
 287         at_map->bam_join_where = bb.bb_val;
 288
 289         at_map->bam_oc = NULL;
 290
 291         at_map->bam_add_proc = NULL;
 292         {
 293                 char    tmp[] =
 294                         "INSERT INTO ldap_referrals "
 295                         "(entry_id,url) VALUES "
 296                         "((SELECT id FROM ldap_entries "
 297                         "WHERE oc_map_id="
 298                         "18446744073709551615UL "       /* 64 bit ULONG */
 299                         "AND keyval=?),?)";
 300                 snprintf( tmp, sizeof(tmp),
 301                         "INSERT INTO ldap_referrals "
 302                         "(entry_id,url) VALUES "
 303                         "((SELECT id FROM ldap_entries "
 304                         "WHERE oc_map_id=%lu "
 305                         "AND keyval=?),?)", oc_map->bom_id );
 306                 at_map->bam_add_proc = ch_strdup( tmp );
 307         }
 308
 309         at_map->bam_delete_proc = NULL;
 310         {
 311                 char    tmp[] =
 312                         "DELETE FROM ldap_referrals "
 313                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 314                         "WHERE oc_map_id="
 315                         "18446744073709551615UL "       /* 64 bit ULONG */
 316                         "AND keyval=?) and url=?";
 317                 snprintf( tmp, sizeof(tmp),
 318                         "DELETE FROM ldap_referrals "
 319                         "WHERE entry_id=(SELECT id FROM ldap_entries "
 320                         "WHERE oc_map_id=%lu"
 321                         "AND keyval=?) and url=?",
 322                         oc_map->bom_id );
 323                 at_map->bam_delete_proc = ch_strdup( tmp );
 324         }
 325
 326         at_map->bam_param_order = 0;
 327         at_map->bam_expect_return = 0;
 328         at_map->bam_next = NULL;
 329
 330         backsql_make_attr_query( oc_map, at_map );
 331         if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 332                 Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): "
 333                                 "duplicate attribute \"%s\" in objectClass \"%s\" map\n",
 334                                 at_map->bam_ad->ad_cname.bv_val,
 335                                 oc_map->bom_oc->soc_cname.bv_val, 0 );
 336         }
 337
 338         return 1;
 339 }
 340
 341 struct backsql_attr_schema_info {
 342         backsql_info    *bas_bi;
 343         SQLHDBC         bas_dbh;
 344         SQLHSTMT        bas_sth;
 345         unsigned long   *bas_oc_id;
 346         int             bas_rc;
 347 };
 348
 349 static int
 350 backsql_oc_get_attr_mapping( void *v_oc, void *v_bas )
 351 {
 352         RETCODE                         rc;
 353         BACKSQL_ROW_NTS                 at_row;
 354         backsql_oc_map_rec              *oc_map = (backsql_oc_map_rec *)v_oc;
 355         backsql_at_map_rec              *at_map;
 356         struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas;
 357
 358         /* bas->bas_oc_id has been bound to bas->bas_sth */
 359         *bas->bas_oc_id = oc_map->bom_id;
 360
 361         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 362                 "executing at_query\n"
 363                 "    \"%s\"\n"
 364                 "    for objectClass \"%s\"\n"
 365                 "    with param oc_id=\"%lu\"\n",
 366                 bas->bas_bi->sql_at_query,
 367                 BACKSQL_OC_NAME( oc_map ),
 368                 *bas->bas_oc_id );
 369
 370         rc = SQLExecute( bas->bas_sth );
 371         if ( rc != SQL_SUCCESS ) {
 372                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 373                         "error executing at_query\n"
 374                         "    \"%s\"\n"
 375                         "    for objectClass \"%s\"\n"
 376                         "    with param oc_id=\"%lu\"\n",
 377                         bas->bas_bi->sql_at_query,
 378                         BACKSQL_OC_NAME( oc_map ),
 379                         *bas->bas_oc_id );
 380                 backsql_PrintErrors( bas->bas_bi->sql_db_env,
 381                                 bas->bas_dbh, bas->bas_sth, rc );
 382                 bas->bas_rc = LDAP_OTHER;
 383                 return BACKSQL_AVL_STOP;
 384         }
 385
 386         backsql_BindRowAsStrings( bas->bas_sth, &at_row );
 387         for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) {
 388                 const char      *text = NULL;
 389                 char            *next = 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                                 &next, 0 );
 452                 if ( next == at_row.cols[ 6 ] || next[0] != '\0' ) {
 453                         /* error */
 454                 }
 455                 at_map->bam_expect_return = strtol( at_row.cols[ 7 ],
 456                                 &next, 0 );
 457                 if ( next == at_row.cols[ 7 ] || next[0] != '\0' ) {
 458                         /* error */
 459                 }
 460                 backsql_make_attr_query( oc_map, at_map );
 461                 Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 462                         "preconstructed query \"%s\"\n",
 463                         at_map->bam_query, 0, 0 );
 464                 at_map->bam_next = NULL;
 465                 if ( avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) {
 466                         Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): "
 467                                         "duplicate attribute \"%s\" "
 468                                         "in objectClass \"%s\" map\n",
 469                                         at_map->bam_ad->ad_cname.bv_val,
 470                                         oc_map->bom_oc->soc_cname.bv_val, 0 );
 471                 }
 472
 473                 if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) &&
 474                                 BER_BVISNULL( &at_map->bam_sel_expr_u ) )
 475                 {
 476                         struct berbuf   bb = BB_NULL;
 477
 478                         backsql_strfcat( &bb, "bcbc",
 479                                         &bas->bas_bi->sql_upper_func,
 480                                         '(' /* ) */ ,
 481                                         &at_map->bam_sel_expr,
 482                                         /* ( */ ')' );
 483                         at_map->bam_sel_expr_u = bb.bb_val;
 484                 }
 485         }
 486         backsql_FreeRow( &at_row );
 487         SQLFreeStmt( bas->bas_sth, SQL_CLOSE );
 488
 489         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): "
 490                 "autoadding 'objectClass' and 'ref' mappings\n",
 491                 BACKSQL_OC_NAME( oc_map ), 0, 0 );
 492
 493         (void)backsql_add_sysmaps( oc_map );
 494
 495         return BACKSQL_AVL_CONTINUE;
 496 }
 497
 498
 499 int
 500 backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh )
 501 {
 502         SQLHSTMT                        sth = SQL_NULL_HSTMT;
 503         RETCODE                         rc;
 504         BACKSQL_ROW_NTS                 oc_row;
 505         unsigned long                   oc_id;
 506         backsql_oc_map_rec              *oc_map;
 507         struct backsql_attr_schema_info bas;
 508
 509         Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n", 0, 0, 0 );
 510
 511         /*
 512          * TimesTen : See if the ldap_entries.dn_ru field exists in the schema
 513          */
 514         if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) {
 515                 rc = backsql_Prepare( dbh, &sth,
 516                                 backsql_check_dn_ru_query, 0 );
 517                 if ( rc == SQL_SUCCESS ) {
 518                         /* Yes, the field exists */
 519                         bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU;
 520                         Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists "
 521                                 "in the schema\n", 0, 0, 0 );
 522                 } else {
 523                         /* No such field exists */
 524                         bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU;
 525                 }
 526
 527                 SQLFreeStmt( sth, SQL_DROP );
 528         }
 529
 530         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n",
 531                         bi->sql_oc_query, 0, 0 );
 532
 533         rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 );
 534         if ( rc != SQL_SUCCESS ) {
 535                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 536                         "error preparing oc_query: \"%s\"\n",
 537                         bi->sql_oc_query, 0, 0 );
 538                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 539                 return LDAP_OTHER;
 540         }
 541
 542         rc = SQLExecute( sth );
 543         if ( rc != SQL_SUCCESS ) {
 544                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 545                         "error executing oc_query: \n", 0, 0, 0 );
 546                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 547                 return LDAP_OTHER;
 548         }
 549
 550         backsql_BindRowAsStrings( sth, &oc_row );
 551         rc = SQLFetch( sth );
 552         for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
 553                 int     colnum;
 554
 555                 oc_map = (backsql_oc_map_rec *)ch_calloc( 1,
 556                                 sizeof( backsql_oc_map_rec ) );
 557
 558                 oc_map->bom_id = strtol( oc_row.cols[ 0 ], NULL, 0 );
 559
 560                 oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] );
 561                 if ( oc_map->bom_oc == NULL ) {
 562                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 563                                 "objectClass \"%s\" is not defined in schema\n",
 564                                 oc_row.cols[ 1 ], 0, 0 );
 565                         return LDAP_OTHER;      /* undefined objectClass ? */
 566                 }
 567
 568                 ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl );
 569                 ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol );
 570                 oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] < 0 ) ? NULL
 571                         : ch_strdup( oc_row.cols[ 4 ] );
 572
 573                 colnum = 5;
 574                 if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
 575                         colnum = 6;
 576                         oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] < 0 )
 577                                 ? NULL : ch_strdup( oc_row.cols[ 5 ] );
 578                 }
 579                 oc_map->bom_delete_proc = ( oc_row.value_len[ colnum ] < 0 ) ? NULL
 580                         : ch_strdup( oc_row.cols[ colnum ] );
 581                 oc_map->bom_expect_return = strtol( oc_row.cols[ colnum + 1 ],
 582                                 NULL, 0 );
 583
 584                 colnum += 2;
 585                 if ( ( oc_row.ncols > colnum ) &&
 586                                 ( oc_row.value_len[ colnum ] > 0 ) )
 587                 {
 588                         const char      *text;
 589
 590                         oc_map->bom_create_hint = NULL;
 591                         rc = slap_str2ad( oc_row.cols[ colnum ],
 592                                         &oc_map->bom_create_hint, &text );
 593                         if ( rc != SQL_SUCCESS ) {
 594                                 Debug( LDAP_DEBUG_TRACE, "load_schema_map(): "
 595                                                 "error matching "
 596                                                 "AttributeDescription %s "
 597                                                 "in create_hint: %s (%d)\n",
 598                                                 oc_row.cols[ colnum ],
 599                                                 text, rc );
 600                                 backsql_PrintErrors( bi->sql_db_env, dbh,
 601                                                 sth, rc );
 602                                 return LDAP_OTHER;
 603                         }
 604                 }
 605
 606                 /*
 607                  * FIXME: first attempt to check for offending
 608                  * instructions in {create|delete}_proc
 609                  */
 610
 611                 oc_map->bom_attrs = NULL;
 612                 if ( avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, avl_dup_error ) == -1 ) {
 613                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 614                                         "duplicate objectClass \"%s\" in objectClass map\n",
 615                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 616                         return LDAP_OTHER;
 617                 }
 618                 if ( avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, avl_dup_error ) == -1 ) {
 619                         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 620                                         "duplicate objectClass \"%s\" in objectClass by ID map\n",
 621                                         oc_map->bom_oc->soc_cname.bv_val, 0, 0 );
 622                         return LDAP_OTHER;
 623                 }
 624                 oc_id = oc_map->bom_id;
 625                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 626                         "objectClass \"%s\":\n    keytbl=\"%s\" keycol=\"%s\"\n",
 627                         BACKSQL_OC_NAME( oc_map ),
 628                         oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val );
 629                 if ( oc_map->bom_create_proc ) {
 630                         Debug( LDAP_DEBUG_TRACE, "    create_proc=\"%s\"\n",
 631                                 oc_map->bom_create_proc, 0, 0 );
 632                 }
 633                 if ( oc_map->bom_create_keyval ) {
 634                         Debug( LDAP_DEBUG_TRACE, "    create_keyval=\"%s\"\n",
 635                                 oc_map->bom_create_keyval, 0, 0 );
 636                 }
 637                 if ( oc_map->bom_create_hint ) {
 638                         Debug( LDAP_DEBUG_TRACE, "    create_hint=\"%s\"\n",
 639                                 oc_map->bom_create_hint->ad_cname.bv_val,
 640                                 0, 0 );
 641                 }
 642                 if ( oc_map->bom_delete_proc ) {
 643                         Debug( LDAP_DEBUG_TRACE, "    delete_proc=\"%s\"\n",
 644                                 oc_map->bom_delete_proc, 0, 0 );
 645                 }
 646                 Debug( LDAP_DEBUG_TRACE, "    expect_return: "
 647                         "add=%d, del=%d; attributes:\n",
 648                         BACKSQL_IS_ADD( oc_map->bom_expect_return ),
 649                         BACKSQL_IS_DEL( oc_map->bom_expect_return ), 0 );
 650         }
 651
 652         backsql_FreeRow( &oc_row );
 653         SQLFreeStmt( sth, SQL_DROP );
 654
 655         /* prepare for attribute fetching */
 656         Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n",
 657                         bi->sql_at_query, 0, 0 );
 658
 659         rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 );
 660         if ( rc != SQL_SUCCESS ) {
 661                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 662                         "error preparing at_query: \"%s\"\n",
 663                         bi->sql_at_query, 0, 0 );
 664                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 665                 return LDAP_OTHER;
 666         }
 667
 668         rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT, &oc_id );
 669         if ( rc != SQL_SUCCESS ) {
 670                 Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): "
 671                         "error binding param \"oc_id\" for at_query\n", 0, 0, 0 );
 672                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 673                 SQLFreeStmt( sth, SQL_DROP );
 674                 return LDAP_OTHER;
 675         }
 676
 677         bas.bas_bi = bi;
 678         bas.bas_dbh = dbh;
 679         bas.bas_sth = sth;
 680         bas.bas_oc_id = &oc_id;
 681         bas.bas_rc = LDAP_SUCCESS;
 682
 683         (void)avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping,
 684                         &bas, BACKSQL_AVL_STOP, AVL_INORDER );
 685
 686         SQLFreeStmt( sth, SQL_DROP );
 687
 688         bi->sql_flags |= BSQLF_SCHEMA_LOADED;
 689
 690         Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n", 0, 0, 0 );
 691
 692         return bas.bas_rc;
 693 }
 694
 695 backsql_oc_map_rec *
 696 backsql_oc2oc( backsql_info *bi, ObjectClass *oc )
 697 {
 698         backsql_oc_map_rec      tmp, *res;
 699
 700 #ifdef BACKSQL_TRACE
 701         Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): "
 702                 "searching for objectclass with name=\"%s\"\n",
 703                 oc->soc_cname.bv_val, 0, 0 );
 704 #endif /* BACKSQL_TRACE */
 705
 706         tmp.bom_oc = oc;
 707         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 708 #ifdef BACKSQL_TRACE
 709         if ( res != NULL ) {
 710                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 711                         "found name=\"%s\", id=%d\n",
 712                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 713         } else {
 714                 Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): "
 715                         "not found\n", 0, 0, 0 );
 716         }
 717 #endif /* BACKSQL_TRACE */
 718
 719         return res;
 720 }
 721
 722 backsql_oc_map_rec *
 723 backsql_name2oc( backsql_info *bi, struct berval *oc_name )
 724 {
 725         backsql_oc_map_rec      tmp, *res;
 726
 727 #ifdef BACKSQL_TRACE
 728         Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): "
 729                 "searching for objectclass with name=\"%s\"\n",
 730                 oc_name->bv_val, 0, 0 );
 731 #endif /* BACKSQL_TRACE */
 732
 733         tmp.bom_oc = oc_bvfind( oc_name );
 734         if ( tmp.bom_oc == NULL ) {
 735                 return NULL;
 736         }
 737
 738         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc );
 739 #ifdef BACKSQL_TRACE
 740         if ( res != NULL ) {
 741                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 742                         "found name=\"%s\", id=%d\n",
 743                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 744         } else {
 745                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 746                         "not found\n", 0, 0, 0 );
 747         }
 748 #endif /* BACKSQL_TRACE */
 749
 750         return res;
 751 }
 752
 753 backsql_oc_map_rec *
 754 backsql_id2oc( backsql_info *bi, unsigned long id )
 755 {
 756         backsql_oc_map_rec      tmp, *res;
 757
 758 #ifdef BACKSQL_TRACE
 759         Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): "
 760                 "searching for objectclass with id='%d'\n", id, 0, 0 );
 761 #endif /* BACKSQL_TRACE */
 762
 763         tmp.bom_id = id;
 764         res = (backsql_oc_map_rec *)avl_find( bi->sql_oc_by_id, &tmp,
 765                         backsql_cmp_oc_id );
 766
 767 #ifdef BACKSQL_TRACE
 768         if ( res != NULL ) {
 769                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 770                         "found name=\"%s\", id=%d\n",
 771                         BACKSQL_OC_NAME( res ), res->bom_id, 0 );
 772         } else {
 773                 Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): "
 774                         "not found\n", 0, 0, 0 );
 775         }
 776 #endif /* BACKSQL_TRACE */
 777
 778         return res;
 779 }
 780
 781 backsql_at_map_rec *
 782 backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad )
 783 {
 784         backsql_at_map_rec      tmp, *res;
 785
 786 #ifdef BACKSQL_TRACE
 787         Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): "
 788                 "searching for attribute \"%s\" for objectclass \"%s\"\n",
 789                 ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ), 0 );
 790 #endif /* BACKSQL_TRACE */
 791
 792         tmp.bam_ad = ad;
 793         res = (backsql_at_map_rec *)avl_find( objclass->bom_attrs, &tmp,
 794                         backsql_cmp_attr );
 795
 796 #ifdef BACKSQL_TRACE
 797         if ( res != NULL ) {
 798                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 799                         "found name=\"%s\", sel_expr=\"%s\"\n",
 800                         res->bam_ad->ad_cname.bv_val,
 801                         res->bam_sel_expr.bv_val, 0 );
 802         } else {
 803                 Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): "
 804                         "not found\n", 0, 0, 0 );
 805         }
 806 #endif /* BACKSQL_TRACE */
 807
 808         return res;
 809 }
 810
 811 /* attributeType inheritance */
 812 struct supad2at_t {
 813         backsql_at_map_rec      **ret;
 814         AttributeDescription    *ad;
 815         unsigned                n;
 816 };
 817
 818 #define SUPAD2AT_STOP   (-1)
 819
 820 static int
 821 supad2at_f( void *v_at, void *v_arg )
 822 {
 823         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
 824         struct supad2at_t       *va = (struct supad2at_t *)v_arg;
 825
 826         if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) {
 827                 backsql_at_map_rec      **ret;
 828                 unsigned                i;
 829
 830                 /* if already listed, holler! (should never happen) */
 831                 if ( va->ret ) {
 832                         for ( i = 0; i < va->n; i++ ) {
 833                                 if ( va->ret[ i ]->bam_ad == at->bam_ad ) {
 834                                         break;
 835                                 }
 836                         }
 837
 838                         if ( i < va->n ) {
 839                                 return 0;
 840                         }
 841                 }
 842
 843                 ret = ch_realloc( va->ret,
 844                                 sizeof( backsql_at_map_rec *) * ( va->n + 2 ) );
 845                 if ( ret == NULL ) {
 846                         ch_free( va->ret );
 847                         return SUPAD2AT_STOP;
 848                 }
 849
 850                 ret[ va->n ] = at;
 851                 va->n++;
 852                 ret[ va->n ] = NULL;
 853                 va->ret = ret;
 854         }
 855
 856         return 0;
 857 }
 858
 859 /*
 860  * stores in *pret a NULL terminated array of pointers
 861  * to backsql_at_map_rec whose attributeType is supad->ad_type
 862  * or derived from it
 863  */
 864 int
 865 backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad,
 866                 backsql_at_map_rec ***pret )
 867 {
 868         struct supad2at_t       va;
 869         int                     rc;
 870
 871         assert( objclass );
 872         assert( supad );
 873         assert( pret );
 874
 875         *pret = NULL;
 876
 877         va.ret = NULL;
 878         va.ad = supad;
 879         va.n = 0;
 880
 881         rc = avl_apply( objclass->bom_attrs, supad2at_f, &va,
 882                         SUPAD2AT_STOP, AVL_INORDER );
 883         if ( rc == SUPAD2AT_STOP ) {
 884                 return -1;
 885         }
 886
 887         *pret = va.ret;
 888
 889         return 0;
 890 }
 891
 892 static void
 893 backsql_free_attr( void *v_at )
 894 {
 895         backsql_at_map_rec      *at = v_at;
 896
 897         Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n",
 898                         at->bam_ad->ad_cname.bv_val, 0, 0 );
 899         ch_free( at->bam_sel_expr.bv_val );
 900         if ( !BER_BVISNULL( &at->bam_from_tbls ) ) {
 901                 ch_free( at->bam_from_tbls.bv_val );
 902         }
 903         if ( !BER_BVISNULL( &at->bam_join_where ) ) {
 904                 ch_free( at->bam_join_where.bv_val );
 905         }
 906         if ( at->bam_add_proc != NULL ) {
 907                 ch_free( at->bam_add_proc );
 908         }
 909         if ( at->bam_delete_proc != NULL ) {
 910                 ch_free( at->bam_delete_proc );
 911         }
 912         if ( at->bam_query != NULL ) {
 913                 ch_free( at->bam_query );
 914         }
 915
 916         /* TimesTen */
 917         if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) {
 918                 ch_free( at->bam_sel_expr_u.bv_val );
 919         }
 920
 921         if ( at->bam_next ) {
 922                 backsql_free_attr( at->bam_next );
 923         }
 924
 925         ch_free( at );
 926
 927         Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n", 0, 0, 0 );
 928 }
 929
 930 static void
 931 backsql_free_oc( void *v_oc )
 932 {
 933         backsql_oc_map_rec      *oc = v_oc;
 934
 935         Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n",
 936                         BACKSQL_OC_NAME( oc ), 0, 0 );
 937         avl_free( oc->bom_attrs, backsql_free_attr );
 938         ch_free( oc->bom_keytbl.bv_val );
 939         ch_free( oc->bom_keycol.bv_val );
 940         if ( oc->bom_create_proc != NULL ) {
 941                 ch_free( oc->bom_create_proc );
 942         }
 943         if ( oc->bom_create_keyval != NULL ) {
 944                 ch_free( oc->bom_create_keyval );
 945         }
 946         if ( oc->bom_delete_proc != NULL ) {
 947                 ch_free( oc->bom_delete_proc );
 948         }
 949         ch_free( oc );
 950
 951         Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n", 0, 0, 0 );
 952 }
 953
 954 int
 955 backsql_destroy_schema_map( backsql_info *bi )
 956 {
 957         Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n", 0, 0, 0 );
 958         avl_free( bi->sql_oc_by_oc, 0 );
 959         avl_free( bi->sql_oc_by_id, backsql_free_oc );
 960         Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n", 0, 0, 0 );
 961         return 0;
 962 }
 963