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