diff options
Diffstat (limited to 'servers/slapd/back-sql/schema-map.c')
| -rw-r--r-- | servers/slapd/back-sql/schema-map.c | 1012 |
1 files changed, 1012 insertions, 0 deletions
diff --git a/servers/slapd/back-sql/schema-map.c b/servers/slapd/back-sql/schema-map.c new file mode 100644 index 0000000..f6294bb --- /dev/null +++ b/servers/slapd/back-sql/schema-map.c @@ -0,0 +1,1012 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1999-2022 The OpenLDAP Foundation. + * Portions Copyright 1999 Dmitry Kovalev. + * Portions Copyright 2002 Pierangelo Masarati. + * Portions Copyright 2004 Mark Adamson. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ +/* ACKNOWLEDGEMENTS: + * This work was initially developed by Dmitry Kovalev for inclusion + * by OpenLDAP Software. Additional significant contributors include + * Pierangelo Masarati and Mark Adamson. + */ + +#include "portable.h" + +#include <stdio.h> +#include <sys/types.h> +#include "ac/string.h" + +#include "lutil.h" +#include "slap.h" +#include "proto-sql.h" + +#define BACKSQL_DUPLICATE (-1) + +/* NOTE: by default, cannot just compare pointers because + * objectClass/attributeType order would be machine-dependent + * (and tests would fail!); however, if you don't want to run + * tests, or see attributeTypes written in the same order + * they are defined, define */ +/* #undef BACKSQL_USE_PTR_CMP */ + +/* + * Uses the pointer to the ObjectClass structure + */ +static int +backsql_cmp_oc( const void *v_m1, const void *v_m2 ) +{ + const backsql_oc_map_rec *m1 = v_m1, + *m2 = v_m2; + +#ifdef BACKSQL_USE_PTR_CMP + return SLAP_PTRCMP( m1->bom_oc, m2->bom_oc ); +#else /* ! BACKSQL_USE_PTR_CMP */ + return ber_bvcmp( &m1->bom_oc->soc_cname, &m2->bom_oc->soc_cname ); +#endif /* ! BACKSQL_USE_PTR_CMP */ +} + +static int +backsql_cmp_oc_id( const void *v_m1, const void *v_m2 ) +{ + const backsql_oc_map_rec *m1 = v_m1, + *m2 = v_m2; + + return ( m1->bom_id < m2->bom_id ? -1 : ( m1->bom_id > m2->bom_id ? 1 : 0 ) ); +} + +/* + * Uses the pointer to the AttributeDescription structure + */ +static int +backsql_cmp_attr( const void *v_m1, const void *v_m2 ) +{ + const backsql_at_map_rec *m1 = v_m1, + *m2 = v_m2; + + if ( slap_ad_is_binary( m1->bam_ad ) || slap_ad_is_binary( m2->bam_ad ) ) { +#ifdef BACKSQL_USE_PTR_CMP + return SLAP_PTRCMP( m1->bam_ad->ad_type, m2->bam_ad->ad_type ); +#else /* ! BACKSQL_USE_PTR_CMP */ + return ber_bvcmp( &m1->bam_ad->ad_type->sat_cname, &m2->bam_ad->ad_type->sat_cname ); +#endif /* ! BACKSQL_USE_PTR_CMP */ + } + +#ifdef BACKSQL_USE_PTR_CMP + return SLAP_PTRCMP( m1->bam_ad, m2->bam_ad ); +#else /* ! BACKSQL_USE_PTR_CMP */ + return ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname ); +#endif /* ! BACKSQL_USE_PTR_CMP */ +} + +int +backsql_dup_attr( void *v_m1, void *v_m2 ) +{ + backsql_at_map_rec *m1 = v_m1, + *m2 = v_m2; + + if ( slap_ad_is_binary( m1->bam_ad ) || slap_ad_is_binary( m2->bam_ad ) ) { +#ifdef BACKSQL_USE_PTR_CMP + assert( m1->bam_ad->ad_type == m2->bam_ad->ad_type ); +#else /* ! BACKSQL_USE_PTR_CMP */ + assert( ber_bvcmp( &m1->bam_ad->ad_type->sat_cname, &m2->bam_ad->ad_type->sat_cname ) == 0 ); +#endif /* ! BACKSQL_USE_PTR_CMP */ + + } else { +#ifdef BACKSQL_USE_PTR_CMP + assert( m1->bam_ad == m2->bam_ad ); +#else /* ! BACKSQL_USE_PTR_CMP */ + assert( ber_bvcmp( &m1->bam_ad->ad_cname, &m2->bam_ad->ad_cname ) == 0 ); +#endif /* ! BACKSQL_USE_PTR_CMP */ + } + + /* duplicate definitions of attributeTypes are appended; + * this allows to define multiple rules for the same + * attributeType. Use with care! */ + for ( ; m1->bam_next ; m1 = m1->bam_next ); + + m1->bam_next = m2; + m2->bam_next = NULL; + + return BACKSQL_DUPLICATE; +} + +static int +backsql_make_attr_query( + backsql_info *bi, + backsql_oc_map_rec *oc_map, + backsql_at_map_rec *at_map ) +{ + struct berbuf bb = BB_NULL; + + backsql_strfcat_x( &bb, NULL, "lblbbbblblbcbl", + (ber_len_t)STRLENOF( "SELECT " ), "SELECT ", + &at_map->bam_sel_expr, + (ber_len_t)STRLENOF( " " ), " ", + &bi->sql_aliasing, + &bi->sql_aliasing_quote, + &at_map->bam_ad->ad_cname, + &bi->sql_aliasing_quote, + (ber_len_t)STRLENOF( " FROM " ), " FROM ", + &at_map->bam_from_tbls, + (ber_len_t)STRLENOF( " WHERE " ), " WHERE ", + &oc_map->bom_keytbl, + '.', + &oc_map->bom_keycol, + (ber_len_t)STRLENOF( "=?" ), "=?" ); + + if ( !BER_BVISNULL( &at_map->bam_join_where ) ) { + backsql_strfcat_x( &bb, NULL, "lb", + (ber_len_t)STRLENOF( " AND " ), " AND ", + &at_map->bam_join_where ); + } + + backsql_strfcat_x( &bb, NULL, "lbbb", + (ber_len_t)STRLENOF( " ORDER BY " ), " ORDER BY ", + &bi->sql_aliasing_quote, + &at_map->bam_ad->ad_cname, + &bi->sql_aliasing_quote ); + + at_map->bam_query = bb.bb_val.bv_val; + +#ifdef BACKSQL_COUNTQUERY + /* Query to count how many rows will be returned. + + SELECT COUNT(*) FROM <from_tbls> WHERE <keytbl>.<keycol>=? + [ AND <join_where> ] + + */ + BER_BVZERO( &bb.bb_val ); + bb.bb_len = 0; + backsql_strfcat_x( &bb, NULL, "lblbcbl", + (ber_len_t)STRLENOF( "SELECT COUNT(*) FROM " ), + "SELECT COUNT(*) FROM ", + &at_map->bam_from_tbls, + (ber_len_t)STRLENOF( " WHERE " ), " WHERE ", + &oc_map->bom_keytbl, + '.', + &oc_map->bom_keycol, + (ber_len_t)STRLENOF( "=?" ), "=?" ); + + if ( !BER_BVISNULL( &at_map->bam_join_where ) ) { + backsql_strfcat_x( &bb, NULL, "lb", + (ber_len_t)STRLENOF( " AND " ), " AND ", + &at_map->bam_join_where ); + } + + at_map->bam_countquery = bb.bb_val.bv_val; +#endif /* BACKSQL_COUNTQUERY */ + + return 0; +} + +static int +backsql_add_sysmaps( backsql_info *bi, backsql_oc_map_rec *oc_map ) +{ + backsql_at_map_rec *at_map; + char s[LDAP_PVT_INTTYPE_CHARS(long)]; + struct berval sbv; + struct berbuf bb; + + sbv.bv_val = s; + sbv.bv_len = snprintf( s, sizeof( s ), BACKSQL_IDNUMFMT, oc_map->bom_id ); + + /* extra objectClasses */ + at_map = (backsql_at_map_rec *)ch_calloc(1, + sizeof( backsql_at_map_rec ) ); + at_map->bam_ad = slap_schema.si_ad_objectClass; + at_map->bam_true_ad = slap_schema.si_ad_objectClass; + ber_str2bv( "ldap_entry_objclasses.oc_name", 0, 1, + &at_map->bam_sel_expr ); + ber_str2bv( "ldap_entry_objclasses,ldap_entries", 0, 1, + &at_map->bam_from_tbls ); + + bb.bb_len = at_map->bam_from_tbls.bv_len + 1; + bb.bb_val = at_map->bam_from_tbls; + backsql_merge_from_clause( bi, &bb, &oc_map->bom_keytbl ); + at_map->bam_from_tbls = bb.bb_val; + + BER_BVZERO( &bb.bb_val ); + bb.bb_len = 0; + backsql_strfcat_x( &bb, NULL, "lbcblb", + (ber_len_t)STRLENOF( "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=" ), + "ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entries.keyval=", + &oc_map->bom_keytbl, + '.', + &oc_map->bom_keycol, + (ber_len_t)STRLENOF( " and ldap_entries.oc_map_id=" ), + " and ldap_entries.oc_map_id=", + &sbv ); + at_map->bam_join_where = bb.bb_val; + + at_map->bam_oc = oc_map->bom_oc; + + at_map->bam_add_proc = NULL; + { + char tmp[STRLENOF("INSERT INTO ldap_entry_objclasses " + "(entry_id,oc_name) VALUES " + "((SELECT id FROM ldap_entries " + "WHERE oc_map_id= " + "AND keyval=?),?)") + LDAP_PVT_INTTYPE_CHARS(unsigned long)]; + snprintf( tmp, sizeof(tmp), + "INSERT INTO ldap_entry_objclasses " + "(entry_id,oc_name) VALUES " + "((SELECT id FROM ldap_entries " + "WHERE oc_map_id=" BACKSQL_IDNUMFMT " " + "AND keyval=?),?)", oc_map->bom_id ); + at_map->bam_add_proc = ch_strdup( tmp ); + } + + at_map->bam_delete_proc = NULL; + { + char tmp[STRLENOF("DELETE FROM ldap_entry_objclasses " + "WHERE entry_id=(SELECT id FROM ldap_entries " + "WHERE oc_map_id= " + "AND keyval=?) AND oc_name=?") + LDAP_PVT_INTTYPE_CHARS(unsigned long)]; + snprintf( tmp, sizeof(tmp), + "DELETE FROM ldap_entry_objclasses " + "WHERE entry_id=(SELECT id FROM ldap_entries " + "WHERE oc_map_id=" BACKSQL_IDNUMFMT " " + "AND keyval=?) AND oc_name=?", + oc_map->bom_id ); + at_map->bam_delete_proc = ch_strdup( tmp ); + } + + at_map->bam_param_order = 0; + at_map->bam_expect_return = 0; + at_map->bam_next = NULL; + + backsql_make_attr_query( bi, oc_map, at_map ); + if ( ldap_avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) { + Debug( LDAP_DEBUG_TRACE, "backsql_add_sysmaps(): " + "duplicate attribute \"%s\" in objectClass \"%s\" map\n", + at_map->bam_ad->ad_cname.bv_val, + oc_map->bom_oc->soc_cname.bv_val ); + } + + /* FIXME: we need to correct the objectClass join_where + * after the attribute query is built */ + ch_free( at_map->bam_join_where.bv_val ); + BER_BVZERO( &bb.bb_val ); + bb.bb_len = 0; + backsql_strfcat_x( &bb, NULL, "lbcblb", + (ber_len_t)STRLENOF( /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=" ), + /* "ldap_entries.id=ldap_entry_objclasses.entry_id AND " */ "ldap_entries.keyval=", + &oc_map->bom_keytbl, + '.', + &oc_map->bom_keycol, + (ber_len_t)STRLENOF( " AND ldap_entries.oc_map_id=" ), + " AND ldap_entries.oc_map_id=", + &sbv ); + at_map->bam_join_where = bb.bb_val; + + return 1; +} + +struct backsql_attr_schema_info { + backsql_info *bas_bi; + SQLHDBC bas_dbh; + SQLHSTMT bas_sth; + backsql_key_t *bas_oc_id; + int bas_rc; +}; + +static int +backsql_oc_get_attr_mapping( void *v_oc, void *v_bas ) +{ + RETCODE rc; + BACKSQL_ROW_NTS at_row; + backsql_oc_map_rec *oc_map = (backsql_oc_map_rec *)v_oc; + backsql_at_map_rec *at_map; + struct backsql_attr_schema_info *bas = (struct backsql_attr_schema_info *)v_bas; + + /* bas->bas_oc_id has been bound to bas->bas_sth */ + *bas->bas_oc_id = oc_map->bom_id; + + Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): " + "executing at_query\n" + " \"%s\"\n" + " for objectClass \"%s\"\n" + " with param oc_id=" BACKSQL_IDNUMFMT "\n", + bas->bas_bi->sql_at_query, + BACKSQL_OC_NAME( oc_map ), + *bas->bas_oc_id ); + + rc = SQLExecute( bas->bas_sth ); + if ( rc != SQL_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): " + "error executing at_query\n" + " \"%s\"\n" + " for objectClass \"%s\"\n" + " with param oc_id=" BACKSQL_IDNUMFMT "\n", + bas->bas_bi->sql_at_query, + BACKSQL_OC_NAME( oc_map ), + *bas->bas_oc_id ); + backsql_PrintErrors( bas->bas_bi->sql_db_env, + bas->bas_dbh, bas->bas_sth, rc ); + bas->bas_rc = LDAP_OTHER; + return BACKSQL_AVL_STOP; + } + + backsql_BindRowAsStrings( bas->bas_sth, &at_row ); + for ( ; rc = SQLFetch( bas->bas_sth ), BACKSQL_SUCCESS( rc ); ) { + const char *text = NULL; + struct berval bv; + struct berbuf bb = BB_NULL; + AttributeDescription *ad = NULL; + + { + struct { + int idx; + char *name; + } required[] = { + { 0, "name" }, + { 1, "sel_expr" }, + { 2, "from" }, + { -1, NULL }, + }; + int i; + + for ( i = 0; required[ i ].name != NULL; i++ ) { + if ( at_row.value_len[ i ] <= 0 ) { + Debug( LDAP_DEBUG_ANY, + "backsql_oc_get_attr_mapping(): " + "required column #%d \"%s\" is empty\n", + required[ i ].idx, required[ i ].name ); + bas->bas_rc = LDAP_OTHER; + return BACKSQL_AVL_STOP; + } + } + } + + Debug(LDAP_DEBUG_TRACE, + "attributeType: " "name=\"%s\" " "sel_expr=\"%s\" " "from=\"%s\" " "join_where=\"%s\" " "add_proc=\"%s\" " "delete_proc=\"%s\" " "sel_expr_u=\"%s\"\n", + at_row.cols[0], at_row.cols[1], at_row.cols[2], + at_row.cols[3] ? at_row.cols[3] : "", + at_row.cols[4] ? at_row.cols[4] : "", + at_row.cols[5] ? at_row.cols[5] : "", + at_row.cols[8] ? at_row.cols[8] : "" ); + + rc = slap_str2ad( at_row.cols[ 0 ], &ad, &text ); + if ( rc != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): " + "attribute \"%s\" for objectClass \"%s\" " + "is not defined in schema: %s\n", + at_row.cols[ 0 ], + BACKSQL_OC_NAME( oc_map ), text ); + bas->bas_rc = LDAP_CONSTRAINT_VIOLATION; + return BACKSQL_AVL_STOP; + } + at_map = (backsql_at_map_rec *)ch_calloc( 1, + sizeof( backsql_at_map_rec ) ); + at_map->bam_ad = ad; + at_map->bam_true_ad = ad; + if ( slap_syntax_is_binary( ad->ad_type->sat_syntax ) + && !slap_ad_is_binary( ad ) ) + { + char buf[ SLAP_TEXT_BUFLEN ]; + struct berval bv; + const char *text = NULL; + + bv.bv_val = buf; + bv.bv_len = snprintf( buf, sizeof( buf ), "%s;binary", + ad->ad_cname.bv_val ); + at_map->bam_true_ad = NULL; + bas->bas_rc = slap_bv2ad( &bv, &at_map->bam_true_ad, &text ); + if ( bas->bas_rc != LDAP_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): " + "unable to fetch attribute \"%s\": %s (%d)\n", + buf, text, rc ); + ch_free( at_map ); + return BACKSQL_AVL_STOP; + } + } + + ber_str2bv( at_row.cols[ 1 ], 0, 1, &at_map->bam_sel_expr ); + if ( at_row.value_len[ 8 ] <= 0 ) { + BER_BVZERO( &at_map->bam_sel_expr_u ); + + } else { + ber_str2bv( at_row.cols[ 8 ], 0, 1, + &at_map->bam_sel_expr_u ); + } + + ber_str2bv( at_row.cols[ 2 ], 0, 0, &bv ); + backsql_merge_from_clause( bas->bas_bi, &bb, &bv ); + at_map->bam_from_tbls = bb.bb_val; + if ( at_row.value_len[ 3 ] <= 0 ) { + BER_BVZERO( &at_map->bam_join_where ); + + } else { + ber_str2bv( at_row.cols[ 3 ], 0, 1, + &at_map->bam_join_where ); + } + at_map->bam_add_proc = NULL; + if ( at_row.value_len[ 4 ] > 0 ) { + at_map->bam_add_proc = ch_strdup( at_row.cols[ 4 ] ); + } + at_map->bam_delete_proc = NULL; + if ( at_row.value_len[ 5 ] > 0 ) { + at_map->bam_delete_proc = ch_strdup( at_row.cols[ 5 ] ); + } + if ( lutil_atoix( &at_map->bam_param_order, at_row.cols[ 6 ], 0 ) != 0 ) { + /* error */ + } + if ( lutil_atoix( &at_map->bam_expect_return, at_row.cols[ 7 ], 0 ) != 0 ) { + /* error */ + } + backsql_make_attr_query( bas->bas_bi, oc_map, at_map ); + Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): " + "preconstructed query \"%s\"\n", + at_map->bam_query ); + at_map->bam_next = NULL; + if ( ldap_avl_insert( &oc_map->bom_attrs, at_map, backsql_cmp_attr, backsql_dup_attr ) == BACKSQL_DUPLICATE ) { + Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_attr_mapping(): " + "duplicate attribute \"%s\" " + "in objectClass \"%s\" map\n", + at_map->bam_ad->ad_cname.bv_val, + oc_map->bom_oc->soc_cname.bv_val ); + ch_free( at_map ); + } + + if ( !BER_BVISNULL( &bas->bas_bi->sql_upper_func ) && + BER_BVISNULL( &at_map->bam_sel_expr_u ) ) + { + struct berbuf bb = BB_NULL; + + backsql_strfcat_x( &bb, NULL, "bcbc", + &bas->bas_bi->sql_upper_func, + '(' /* ) */ , + &at_map->bam_sel_expr, + /* ( */ ')' ); + at_map->bam_sel_expr_u = bb.bb_val; + } + } + backsql_FreeRow( &at_row ); + SQLFreeStmt( bas->bas_sth, SQL_CLOSE ); + + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(\"%s\"): " + "autoadding 'objectClass' and 'ref' mappings\n", + BACKSQL_OC_NAME( oc_map ) ); + + (void)backsql_add_sysmaps( bas->bas_bi, oc_map ); + + return BACKSQL_AVL_CONTINUE; +} + + +int +backsql_load_schema_map( backsql_info *bi, SQLHDBC dbh ) +{ + SQLHSTMT sth = SQL_NULL_HSTMT; + RETCODE rc; + BACKSQL_ROW_NTS oc_row; + backsql_key_t oc_id; + backsql_oc_map_rec *oc_map; + struct backsql_attr_schema_info bas; + + int delete_proc_idx = 5; + int create_hint_idx = delete_proc_idx + 2; + + Debug( LDAP_DEBUG_TRACE, "==>backsql_load_schema_map()\n" ); + + /* + * TimesTen : See if the ldap_entries.dn_ru field exists in the schema + */ + if ( !BACKSQL_DONTCHECK_LDAPINFO_DN_RU( bi ) ) { + rc = backsql_Prepare( dbh, &sth, + backsql_check_dn_ru_query, 0 ); + if ( rc == SQL_SUCCESS ) { + /* Yes, the field exists */ + bi->sql_flags |= BSQLF_HAS_LDAPINFO_DN_RU; + Debug( LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists " + "in the schema\n" ); + } else { + /* No such field exists */ + bi->sql_flags &= ~BSQLF_HAS_LDAPINFO_DN_RU; + } + + SQLFreeStmt( sth, SQL_DROP ); + } + + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): oc_query \"%s\"\n", + bi->sql_oc_query ); + + rc = backsql_Prepare( dbh, &sth, bi->sql_oc_query, 0 ); + if ( rc != SQL_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "error preparing oc_query: \"%s\"\n", + bi->sql_oc_query ); + backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc ); + return LDAP_OTHER; + } + + rc = SQLExecute( sth ); + if ( rc != SQL_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "error executing oc_query: \n" ); + backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc ); + return LDAP_OTHER; + } + + backsql_BindRowAsStrings( sth, &oc_row ); + rc = SQLFetch( sth ); + + if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) { + delete_proc_idx++; + create_hint_idx++; + } + + for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) { + { + struct { + int idx; + char *name; + } required[] = { + { 0, "id" }, + { 1, "name" }, + { 2, "keytbl" }, + { 3, "keycol" }, + { -1, "expect_return" }, + { -1, NULL }, + }; + int i; + + required[4].idx = delete_proc_idx + 1; + + for ( i = 0; required[ i ].name != NULL; i++ ) { + if ( oc_row.value_len[ required[ i ].idx ] <= 0 ) { + Debug( LDAP_DEBUG_ANY, + "backsql_load_schema_map(): " + "required column #%d \"%s\" is empty\n", + required[ i ].idx, required[ i ].name ); + return LDAP_OTHER; + } + } + } + + Debug(LDAP_DEBUG_TRACE, + "objectClass: " "id=\"%s\" " "name=\"%s\" " "keytbl=\"%s\" " "keycol=\"%s\" " "create_proc=\"%s\" " "create_keyval=\"%s\" " "delete_proc=\"%s\" " "expect_return=\"%s\"" "create_hint=\"%s\" \n", + oc_row.cols[0], oc_row.cols[1], oc_row.cols[2], + oc_row.cols[3], + oc_row.cols[4] ? oc_row.cols[4] : "", + (BACKSQL_CREATE_NEEDS_SELECT(bi) && oc_row.cols[5]) ? oc_row.cols[5] : "", + oc_row.cols[delete_proc_idx] ? oc_row.cols[delete_proc_idx] : "", + oc_row.cols[delete_proc_idx + 1], + ((oc_row.ncols > create_hint_idx) && oc_row.cols[create_hint_idx]) ? oc_row.cols[create_hint_idx] : "" ); + + oc_map = (backsql_oc_map_rec *)ch_calloc( 1, + sizeof( backsql_oc_map_rec ) ); + + if ( BACKSQL_STR2ID( &oc_map->bom_id, oc_row.cols[ 0 ], 0 ) != 0 ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "unable to parse id=\"%s\"\n", + oc_row.cols[ 0 ] ); + ch_free( oc_map ); + return LDAP_OTHER; + } + + oc_map->bom_oc = oc_find( oc_row.cols[ 1 ] ); + if ( oc_map->bom_oc == NULL ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "objectClass \"%s\" is not defined in schema\n", + oc_row.cols[ 1 ] ); + ch_free( oc_map ); + return LDAP_OTHER; /* undefined objectClass ? */ + } + + ber_str2bv( oc_row.cols[ 2 ], 0, 1, &oc_map->bom_keytbl ); + ber_str2bv( oc_row.cols[ 3 ], 0, 1, &oc_map->bom_keycol ); + oc_map->bom_create_proc = ( oc_row.value_len[ 4 ] <= 0 ) ? NULL + : ch_strdup( oc_row.cols[ 4 ] ); + + if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) { + oc_map->bom_create_keyval = ( oc_row.value_len[ 5 ] <= 0 ) + ? NULL : ch_strdup( oc_row.cols[ 5 ] ); + } + oc_map->bom_delete_proc = ( oc_row.value_len[ delete_proc_idx ] <= 0 ) ? NULL + : ch_strdup( oc_row.cols[ delete_proc_idx ] ); + if ( lutil_atoix( &oc_map->bom_expect_return, oc_row.cols[ delete_proc_idx + 1 ], 0 ) != 0 ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "unable to parse expect_return=\"%s\" for objectClass \"%s\"\n", + oc_row.cols[ delete_proc_idx + 1 ], oc_row.cols[ 1 ] ); + ch_free( oc_map ); + return LDAP_OTHER; + } + + if ( ( oc_row.ncols > create_hint_idx ) && + ( oc_row.value_len[ create_hint_idx ] > 0 ) ) + { + const char *text; + + oc_map->bom_create_hint = NULL; + rc = slap_str2ad( oc_row.cols[ create_hint_idx ], + &oc_map->bom_create_hint, &text ); + if ( rc != SQL_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "load_schema_map(): " + "error matching " + "AttributeDescription %s " + "in create_hint: %s (%d)\n", + oc_row.cols[ create_hint_idx ], + text, rc ); + backsql_PrintErrors( bi->sql_db_env, dbh, + sth, rc ); + ch_free( oc_map ); + return LDAP_OTHER; + } + } + + /* + * FIXME: first attempt to check for offending + * instructions in {create|delete}_proc + */ + + oc_map->bom_attrs = NULL; + if ( ldap_avl_insert( &bi->sql_oc_by_oc, oc_map, backsql_cmp_oc, ldap_avl_dup_error ) == -1 ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "duplicate objectClass \"%s\" in objectClass map\n", + oc_map->bom_oc->soc_cname.bv_val ); + ch_free( oc_map ); + return LDAP_OTHER; + } + if ( ldap_avl_insert( &bi->sql_oc_by_id, oc_map, backsql_cmp_oc_id, ldap_avl_dup_error ) == -1 ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "duplicate objectClass \"%s\" in objectClass by ID map\n", + oc_map->bom_oc->soc_cname.bv_val ); + return LDAP_OTHER; + } + oc_id = oc_map->bom_id; + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "objectClass \"%s\":\n keytbl=\"%s\" keycol=\"%s\"\n", + BACKSQL_OC_NAME( oc_map ), + oc_map->bom_keytbl.bv_val, oc_map->bom_keycol.bv_val ); + if ( oc_map->bom_create_proc ) { + Debug( LDAP_DEBUG_TRACE, " create_proc=\"%s\"\n", + oc_map->bom_create_proc ); + } + if ( oc_map->bom_create_keyval ) { + Debug( LDAP_DEBUG_TRACE, " create_keyval=\"%s\"\n", + oc_map->bom_create_keyval ); + } + if ( oc_map->bom_create_hint ) { + Debug( LDAP_DEBUG_TRACE, " create_hint=\"%s\"\n", + oc_map->bom_create_hint->ad_cname.bv_val ); + } + if ( oc_map->bom_delete_proc ) { + Debug( LDAP_DEBUG_TRACE, " delete_proc=\"%s\"\n", + oc_map->bom_delete_proc ); + } + Debug( LDAP_DEBUG_TRACE, " expect_return: " + "add=%d, del=%d; attributes:\n", + BACKSQL_IS_ADD( oc_map->bom_expect_return ), + BACKSQL_IS_DEL( oc_map->bom_expect_return ) ); + } + + backsql_FreeRow( &oc_row ); + SQLFreeStmt( sth, SQL_DROP ); + + /* prepare for attribute fetching */ + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): at_query \"%s\"\n", + bi->sql_at_query ); + + rc = backsql_Prepare( dbh, &sth, bi->sql_at_query, 0 ); + if ( rc != SQL_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "error preparing at_query: \"%s\"\n", + bi->sql_at_query ); + backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc ); + return LDAP_OTHER; + } + + rc = backsql_BindParamNumID( sth, 1, SQL_PARAM_INPUT, &oc_id ); + if ( rc != SQL_SUCCESS ) { + Debug( LDAP_DEBUG_TRACE, "backsql_load_schema_map(): " + "error binding param \"oc_id\" for at_query\n" ); + backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc ); + SQLFreeStmt( sth, SQL_DROP ); + return LDAP_OTHER; + } + + bas.bas_bi = bi; + bas.bas_dbh = dbh; + bas.bas_sth = sth; + bas.bas_oc_id = &oc_id; + bas.bas_rc = LDAP_SUCCESS; + + (void)ldap_avl_apply( bi->sql_oc_by_oc, backsql_oc_get_attr_mapping, + &bas, BACKSQL_AVL_STOP, AVL_INORDER ); + + SQLFreeStmt( sth, SQL_DROP ); + + bi->sql_flags |= BSQLF_SCHEMA_LOADED; + + Debug( LDAP_DEBUG_TRACE, "<==backsql_load_schema_map()\n" ); + + return bas.bas_rc; +} + +backsql_oc_map_rec * +backsql_oc2oc( backsql_info *bi, ObjectClass *oc ) +{ + backsql_oc_map_rec tmp, *res; + +#ifdef BACKSQL_TRACE + Debug( LDAP_DEBUG_TRACE, "==>backsql_oc2oc(): " + "searching for objectclass with name=\"%s\"\n", + oc->soc_cname.bv_val ); +#endif /* BACKSQL_TRACE */ + + tmp.bom_oc = oc; + res = (backsql_oc_map_rec *)ldap_avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc ); +#ifdef BACKSQL_TRACE + if ( res != NULL ) { + Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): " + "found name=\"%s\", id=%d\n", + BACKSQL_OC_NAME( res ), res->bom_id ); + } else { + Debug( LDAP_DEBUG_TRACE, "<==backsql_oc2oc(): " + "not found\n" ); + } +#endif /* BACKSQL_TRACE */ + + return res; +} + +backsql_oc_map_rec * +backsql_name2oc( backsql_info *bi, struct berval *oc_name ) +{ + backsql_oc_map_rec tmp, *res; + +#ifdef BACKSQL_TRACE + Debug( LDAP_DEBUG_TRACE, "==>oc_with_name(): " + "searching for objectclass with name=\"%s\"\n", + oc_name->bv_val ); +#endif /* BACKSQL_TRACE */ + + tmp.bom_oc = oc_bvfind( oc_name ); + if ( tmp.bom_oc == NULL ) { + return NULL; + } + + res = (backsql_oc_map_rec *)ldap_avl_find( bi->sql_oc_by_oc, &tmp, backsql_cmp_oc ); +#ifdef BACKSQL_TRACE + if ( res != NULL ) { + Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): " + "found name=\"%s\", id=%d\n", + BACKSQL_OC_NAME( res ), res->bom_id ); + } else { + Debug( LDAP_DEBUG_TRACE, "<==oc_with_name(): " + "not found\n" ); + } +#endif /* BACKSQL_TRACE */ + + return res; +} + +backsql_oc_map_rec * +backsql_id2oc( backsql_info *bi, unsigned long id ) +{ + backsql_oc_map_rec tmp, *res; + +#ifdef BACKSQL_TRACE + Debug( LDAP_DEBUG_TRACE, "==>oc_with_id(): " + "searching for objectclass with id=%lu\n", id ); +#endif /* BACKSQL_TRACE */ + + tmp.bom_id = id; + res = (backsql_oc_map_rec *)ldap_avl_find( bi->sql_oc_by_id, &tmp, + backsql_cmp_oc_id ); + +#ifdef BACKSQL_TRACE + if ( res != NULL ) { + Debug( LDAP_DEBUG_TRACE, "<==oc_with_id(): " + "found name=\"%s\", id=%lu\n", + BACKSQL_OC_NAME( res ), res->bom_id ); + } else { + Debug( LDAP_DEBUG_TRACE, "<==oc_with_id(): " + "id=%lu not found\n", res->bom_id ); + } +#endif /* BACKSQL_TRACE */ + + return res; +} + +backsql_at_map_rec * +backsql_ad2at( backsql_oc_map_rec* objclass, AttributeDescription *ad ) +{ + backsql_at_map_rec tmp = { 0 }, *res; + +#ifdef BACKSQL_TRACE + Debug( LDAP_DEBUG_TRACE, "==>backsql_ad2at(): " + "searching for attribute \"%s\" for objectclass \"%s\"\n", + ad->ad_cname.bv_val, BACKSQL_OC_NAME( objclass ) ); +#endif /* BACKSQL_TRACE */ + + tmp.bam_ad = ad; + res = (backsql_at_map_rec *)ldap_avl_find( objclass->bom_attrs, &tmp, + backsql_cmp_attr ); + +#ifdef BACKSQL_TRACE + if ( res != NULL ) { + Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): " + "found name=\"%s\", sel_expr=\"%s\"\n", + res->bam_ad->ad_cname.bv_val, + res->bam_sel_expr.bv_val ); + } else { + Debug( LDAP_DEBUG_TRACE, "<==backsql_ad2at(): " + "not found\n" ); + } +#endif /* BACKSQL_TRACE */ + + return res; +} + +/* attributeType inheritance */ +struct supad2at_t { + backsql_at_map_rec **ret; + AttributeDescription *ad; + unsigned n; +}; + +#define SUPAD2AT_STOP (-1) + +static int +supad2at_f( void *v_at, void *v_arg ) +{ + backsql_at_map_rec *at = (backsql_at_map_rec *)v_at; + struct supad2at_t *va = (struct supad2at_t *)v_arg; + + if ( is_at_subtype( at->bam_ad->ad_type, va->ad->ad_type ) ) { + backsql_at_map_rec **ret = NULL; + unsigned i; + + /* if already listed, holler! (should never happen) */ + if ( va->ret ) { + for ( i = 0; i < va->n; i++ ) { + if ( va->ret[ i ]->bam_ad == at->bam_ad ) { + break; + } + } + + if ( i < va->n ) { + return 0; + } + } + + ret = ch_realloc( va->ret, + sizeof( backsql_at_map_rec * ) * ( va->n + 2 ) ); + if ( ret == NULL ) { + ch_free( va->ret ); + va->ret = NULL; + va->n = 0; + return SUPAD2AT_STOP; + } + + ret[ va->n ] = at; + va->n++; + ret[ va->n ] = NULL; + va->ret = ret; + } + + return 0; +} + +/* + * stores in *pret a NULL terminated array of pointers + * to backsql_at_map_rec whose attributeType is supad->ad_type + * or derived from it + */ +int +backsql_supad2at( backsql_oc_map_rec *objclass, AttributeDescription *supad, + backsql_at_map_rec ***pret ) +{ + struct supad2at_t va = { 0 }; + int rc; + + assert( objclass != NULL ); + assert( supad != NULL ); + assert( pret != NULL ); + + *pret = NULL; + + va.ad = supad; + + rc = ldap_avl_apply( objclass->bom_attrs, supad2at_f, &va, + SUPAD2AT_STOP, AVL_INORDER ); + if ( rc == SUPAD2AT_STOP ) { + return -1; + } + + *pret = va.ret; + + return 0; +} + +static void +backsql_free_attr( void *v_at ) +{ + backsql_at_map_rec *at = v_at; + + Debug( LDAP_DEBUG_TRACE, "==>free_attr(): \"%s\"\n", + at->bam_ad->ad_cname.bv_val ); + ch_free( at->bam_sel_expr.bv_val ); + if ( !BER_BVISNULL( &at->bam_from_tbls ) ) { + ch_free( at->bam_from_tbls.bv_val ); + } + if ( !BER_BVISNULL( &at->bam_join_where ) ) { + ch_free( at->bam_join_where.bv_val ); + } + if ( at->bam_add_proc != NULL ) { + ch_free( at->bam_add_proc ); + } + if ( at->bam_delete_proc != NULL ) { + ch_free( at->bam_delete_proc ); + } + if ( at->bam_query != NULL ) { + ch_free( at->bam_query ); + } + +#ifdef BACKSQL_COUNTQUERY + if ( at->bam_countquery != NULL ) { + ch_free( at->bam_countquery ); + } +#endif /* BACKSQL_COUNTQUERY */ + + /* TimesTen */ + if ( !BER_BVISNULL( &at->bam_sel_expr_u ) ) { + ch_free( at->bam_sel_expr_u.bv_val ); + } + + if ( at->bam_next ) { + backsql_free_attr( at->bam_next ); + } + + ch_free( at ); + + Debug( LDAP_DEBUG_TRACE, "<==free_attr()\n" ); +} + +static void +backsql_free_oc( void *v_oc ) +{ + backsql_oc_map_rec *oc = v_oc; + + Debug( LDAP_DEBUG_TRACE, "==>free_oc(): \"%s\"\n", + BACKSQL_OC_NAME( oc ) ); + ldap_avl_free( oc->bom_attrs, backsql_free_attr ); + ch_free( oc->bom_keytbl.bv_val ); + ch_free( oc->bom_keycol.bv_val ); + if ( oc->bom_create_proc != NULL ) { + ch_free( oc->bom_create_proc ); + } + if ( oc->bom_create_keyval != NULL ) { + ch_free( oc->bom_create_keyval ); + } + if ( oc->bom_delete_proc != NULL ) { + ch_free( oc->bom_delete_proc ); + } + ch_free( oc ); + + Debug( LDAP_DEBUG_TRACE, "<==free_oc()\n" ); +} + +int +backsql_destroy_schema_map( backsql_info *bi ) +{ + Debug( LDAP_DEBUG_TRACE, "==>destroy_schema_map()\n" ); + ldap_avl_free( bi->sql_oc_by_oc, 0 ); + ldap_avl_free( bi->sql_oc_by_id, backsql_free_oc ); + Debug( LDAP_DEBUG_TRACE, "<==destroy_schema_map()\n" ); + return 0; +} + |