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openldap/servers/slapd/back-sql/search.c

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/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1999-2004 The OpenLDAP Foundation.
* Portions Copyright 1999 Dmitry Kovalev.
* 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.
*/
#include "portable.h"
#ifdef SLAPD_SQL
#include <stdio.h>
#include <sys/types.h>
#include "ac/string.h"
#include "ac/ctype.h"
#include "slap.h"
#include "proto-sql.h"
static int backsql_process_filter( backsql_srch_info *bsi, Filter *f );
static int backsql_process_filter_eq( backsql_srch_info *bsi,
backsql_at_map_rec *at,
int casefold, struct berval *filter_value );
static int backsql_process_filter_like( backsql_srch_info *bsi,
backsql_at_map_rec *at,
int casefold, struct berval *filter_value );
static int backsql_process_filter_attr( backsql_srch_info *bsi, Filter *f,
backsql_at_map_rec *at );
static int
backsql_attrlist_add( backsql_srch_info *bsi, AttributeDescription *ad )
{
int n_attrs = 0;
AttributeName *an = NULL;
if ( bsi->bsi_attrs == NULL ) {
return 1;
}
/*
* clear the list (retrieve all attrs)
*/
if ( ad == NULL ) {
ch_free( bsi->bsi_attrs );
bsi->bsi_attrs = NULL;
return 1;
}
for ( ; !BER_BVISNULL( &bsi->bsi_attrs[ n_attrs ].an_name ); n_attrs++ ) {
an = &bsi->bsi_attrs[ n_attrs ];
Debug( LDAP_DEBUG_TRACE, "==>backsql_attrlist_add(): "
"attribute \"%s\" is in list\n",
an->an_name.bv_val, 0, 0 );
/*
* We can live with strcmp because the attribute
* list has been normalized before calling be_search
*/
if ( !BACKSQL_NCMP( &an->an_name, &ad->ad_cname ) ) {
return 1;
}
}
Debug( LDAP_DEBUG_TRACE, "==>backsql_attrlist_add(): "
"adding \"%s\" to list\n", ad->ad_cname.bv_val, 0, 0 );
an = (AttributeName *)ch_realloc( bsi->bsi_attrs,
sizeof( AttributeName ) * ( n_attrs + 2 ) );
if ( an == NULL ) {
return -1;
}
an[ n_attrs ].an_name = ad->ad_cname;
an[ n_attrs ].an_desc = ad;
BER_BVZERO( &an[ n_attrs + 1 ].an_name );
bsi->bsi_attrs = an;
return 1;
}
/*
* Initializes the search structure.
*
* If get_base_id != 0, the field bsi_base_id is filled
* with the entryID of bsi_base_ndn; it must be freed
* by backsql_free_entryID() when no longer required.
*
* NOTE: base must be normalized
*/
int
backsql_init_search(
backsql_srch_info *bsi,
struct berval *nbase,
int scope,
int slimit,
int tlimit,
time_t stoptime,
Filter *filter,
SQLHDBC dbh,
Operation *op,
SlapReply *rs,
AttributeName *attrs,
int get_base_id )
{
AttributeName *p;
int rc = LDAP_SUCCESS;
bsi->bsi_base_ndn = nbase;
BER_BVZERO( &bsi->bsi_base_id.eid_dn );
BER_BVZERO( &bsi->bsi_base_id.eid_ndn );
bsi->bsi_scope = scope;
bsi->bsi_slimit = slimit;
bsi->bsi_tlimit = tlimit;
bsi->bsi_filter = filter;
bsi->bsi_dbh = dbh;
bsi->bsi_op = op;
bsi->bsi_rs = rs;
bsi->bsi_flags = 0;
/*
* handle "*"
*/
if ( attrs == NULL || an_find( attrs, &AllUser ) ) {
bsi->bsi_attrs = NULL;
} else {
int got_oc = 0;
bsi->bsi_attrs = (AttributeName *)ch_calloc( 1,
sizeof( AttributeName ) );
BER_BVZERO( &bsi->bsi_attrs[ 0 ].an_name );
for ( p = attrs; !BER_BVISNULL( &p->an_name ); p++ ) {
/*
* ignore "1.1"; handle "+"
*/
if ( BACKSQL_NCMP( &p->an_name, &AllOper ) == 0 ) {
bsi->bsi_flags |= BSQL_SF_ALL_OPER;
continue;
} else if ( BACKSQL_NCMP( &p->an_name, &NoAttrs ) == 0 ) {
continue;
} else if ( p->an_desc == slap_schema.si_ad_objectClass ) {
got_oc = 1;
}
backsql_attrlist_add( bsi, p->an_desc );
}
if ( got_oc == 0 ) {
/* add objectClass if not present,
* because it is required to understand
* if an entry is a referral, an alias
* or so... */
backsql_attrlist_add( bsi, slap_schema.si_ad_objectClass );
}
}
bsi->bsi_abandon = 0;
bsi->bsi_id_list = NULL;
bsi->bsi_id_listtail = &bsi->bsi_id_list;
bsi->bsi_n_candidates = 0;
bsi->bsi_stoptime = stoptime;
BER_BVZERO( &bsi->bsi_sel.bb_val );
bsi->bsi_sel.bb_len = 0;
BER_BVZERO( &bsi->bsi_from.bb_val );
bsi->bsi_from.bb_len = 0;
BER_BVZERO( &bsi->bsi_join_where.bb_val );
bsi->bsi_join_where.bb_len = 0;
BER_BVZERO( &bsi->bsi_flt_where.bb_val );
bsi->bsi_flt_where.bb_len = 0;
bsi->bsi_filter_oc = NULL;
if ( get_base_id ) {
assert( op->o_bd->be_private );
rc = backsql_dn2id( (backsql_info *)op->o_bd->be_private,
&bsi->bsi_base_id, dbh, nbase );
}
return ( bsi->bsi_status = rc );
}
static int
backsql_process_filter_list( backsql_srch_info *bsi, Filter *f, int op )
{
int res;
if ( !f ) {
return 0;
}
backsql_strfcat( &bsi->bsi_flt_where, "c", '(' /* ) */ );
while ( 1 ) {
res = backsql_process_filter( bsi, f );
if ( res < 0 ) {
/*
* TimesTen : If the query has no answers,
* don't bother to run the query.
*/
return -1;
}
f = f->f_next;
if ( f == NULL ) {
break;
}
switch ( op ) {
case LDAP_FILTER_AND:
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( " AND " ),
" AND " );
break;
case LDAP_FILTER_OR:
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( " OR " ),
" OR " );
break;
}
}
backsql_strfcat( &bsi->bsi_flt_where, "c", /* ( */ ')' );
return 1;
}
static int
backsql_process_sub_filter( backsql_srch_info *bsi, Filter *f,
backsql_at_map_rec *at )
{
backsql_info *bi = (backsql_info *)bsi->bsi_op->o_bd->be_private;
int i;
int casefold = 0;
if ( !f ) {
return 0;
}
/* always uppercase strings by now */
#ifdef BACKSQL_UPPERCASE_FILTER
if ( SLAP_MR_ASSOCIATED( f->f_sub_desc->ad_type->sat_substr,
bi->sql_caseIgnoreMatch ) )
#endif /* BACKSQL_UPPERCASE_FILTER */
{
casefold = 1;
}
if ( SLAP_MR_ASSOCIATED( f->f_sub_desc->ad_type->sat_substr,
bi->sql_telephoneNumberMatch ) )
{
struct berval bv;
ber_len_t i, s, a;
/*
* to check for matching telephone numbers
* with intermixed chars, e.g. val='1234'
* use
*
* val LIKE '%1%2%3%4%'
*/
BER_BVZERO( &bv );
if ( f->f_sub_initial.bv_val ) {
bv.bv_len += f->f_sub_initial.bv_len;
}
if ( f->f_sub_any != NULL ) {
for ( a = 0; f->f_sub_any[ a ].bv_val != NULL; a++ ) {
bv.bv_len += f->f_sub_any[ a ].bv_len;
}
}
if ( f->f_sub_final.bv_val ) {
bv.bv_len += f->f_sub_final.bv_len;
}
bv.bv_len = 2 * bv.bv_len - 1;
bv.bv_val = ch_malloc( bv.bv_len + 1 );
s = 0;
if ( !BER_BVISNULL( &f->f_sub_initial ) ) {
bv.bv_val[ s ] = f->f_sub_initial.bv_val[ 0 ];
for ( i = 1; i < f->f_sub_initial.bv_len; i++ ) {
bv.bv_val[ s + 2 * i - 1 ] = '%';
bv.bv_val[ s + 2 * i ] = f->f_sub_initial.bv_val[ i ];
}
bv.bv_val[ s + 2 * i - 1 ] = '%';
s += 2 * i;
}
if ( f->f_sub_any != NULL ) {
for ( a = 0; !BER_BVISNULL( &f->f_sub_any[ a ] ); a++ ) {
bv.bv_val[ s ] = f->f_sub_any[ a ].bv_val[ 0 ];
for ( i = 1; i < f->f_sub_any[ a ].bv_len; i++ ) {
bv.bv_val[ s + 2 * i - 1 ] = '%';
bv.bv_val[ s + 2 * i ] = f->f_sub_any[ a ].bv_val[ i ];
}
bv.bv_val[ s + 2 * i - 1 ] = '%';
s += 2 * i;
}
}
if ( !BER_BVISNULL( &f->f_sub_final ) ) {
bv.bv_val[ s ] = f->f_sub_final.bv_val[ 0 ];
for ( i = 1; i < f->f_sub_final.bv_len; i++ ) {
bv.bv_val[ s + 2 * i - 1 ] = '%';
bv.bv_val[ s + 2 * i ] = f->f_sub_final.bv_val[ i ];
}
bv.bv_val[ s + 2 * i - 1 ] = '%';
s += 2 * i;
}
bv.bv_val[ s - 1 ] = '\0';
(void)backsql_process_filter_like( bsi, at, casefold, &bv );
ch_free( bv.bv_val );
return 1;
}
/*
* When dealing with case-sensitive strings
* we may omit normalization; however, normalized
* SQL filters are more liberal.
*/
backsql_strfcat( &bsi->bsi_flt_where, "c", '(' /* ) */ );
/* TimesTen */
Debug( LDAP_DEBUG_TRACE, "backsql_process_sub_filter(%s):\n",
at->bam_ad->ad_cname.bv_val, 0, 0 );
Debug(LDAP_DEBUG_TRACE, " expr: '%s%s%s'\n", at->bam_sel_expr.bv_val,
at->bam_sel_expr_u.bv_val ? "' '" : "",
at->bam_sel_expr_u.bv_val ? at->bam_sel_expr_u.bv_val : "" );
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
/*
* If a pre-upper-cased version of the column
* or a precompiled upper function exists, use it
*/
backsql_strfcat( &bsi->bsi_flt_where,
"bl",
&at->bam_sel_expr_u,
(ber_len_t)STRLENOF( " LIKE '" ),
" LIKE '" );
} else {
backsql_strfcat( &bsi->bsi_flt_where, "bl",
&at->bam_sel_expr,
(ber_len_t)STRLENOF( " LIKE '" ), " LIKE '" );
}
if ( !BER_BVISNULL( &f->f_sub_initial ) ) {
ber_len_t start;
#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE,
"==>backsql_process_sub_filter(%s): "
"sub_initial=\"%s\"\n", at->bam_ad->ad_cname.bv_val,
f->f_sub_initial.bv_val, 0 );
#endif /* BACKSQL_TRACE */
start = bsi->bsi_flt_where.bb_val.bv_len;
backsql_strfcat( &bsi->bsi_flt_where, "b",
&f->f_sub_initial );
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
ldap_pvt_str2upper( &bsi->bsi_flt_where.bb_val.bv_val[ start ] );
}
}
backsql_strfcat( &bsi->bsi_flt_where, "c", '%' );
if ( f->f_sub_any != NULL ) {
for ( i = 0; !BER_BVISNULL( &f->f_sub_any[ i ] ); i++ ) {
ber_len_t start;
#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE,
"==>backsql_process_sub_filter(%s): "
"sub_any[%d]=\"%s\"\n", at->bam_ad->ad_cname.bv_val,
i, f->f_sub_any[ i ].bv_val );
#endif /* BACKSQL_TRACE */
start = bsi->bsi_flt_where.bb_val.bv_len;
backsql_strfcat( &bsi->bsi_flt_where,
"bc",
&f->f_sub_any[ i ],
'%' );
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
/*
* Note: toupper('%') = '%'
*/
ldap_pvt_str2upper( &bsi->bsi_flt_where.bb_val.bv_val[ start ] );
}
}
}
if ( !BER_BVISNULL( &f->f_sub_final ) ) {
ber_len_t start;
#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE,
"==>backsql_process_sub_filter(%s): "
"sub_final=\"%s\"\n", at->bam_ad->ad_cname.bv_val,
f->f_sub_final.bv_val, 0 );
#endif /* BACKSQL_TRACE */
start = bsi->bsi_flt_where.bb_val.bv_len;
backsql_strfcat( &bsi->bsi_flt_where, "b",
&f->f_sub_final );
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
ldap_pvt_str2upper( &bsi->bsi_flt_where.bb_val.bv_val[ start ] );
}
}
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( /* (' */ "')" ), /* (' */ "')" );
return 1;
}
static int
backsql_merge_from_tbls( backsql_srch_info *bsi, struct berval *from_tbls )
{
if ( BER_BVISNULL( from_tbls ) ) {
return LDAP_SUCCESS;
}
if ( !BER_BVISNULL( &bsi->bsi_from.bb_val ) ) {
char *start, *end, *tmp;
tmp = ch_strdup( from_tbls->bv_val );
for ( start = tmp, end = strchr( start, ',' ); start; ) {
if ( end ) {
end[0] = '\0';
}
if ( strstr( bsi->bsi_from.bb_val.bv_val, start) == NULL )
{
backsql_strfcat( &bsi->bsi_from, "cs", ',', start );
}
if ( end ) {
/* in case there are spaces after the comma... */
for ( start = &end[1]; isspace( start[0] ); start++ );
if ( start[0] ) {
end = strchr( start, ',' );
} else {
start = NULL;
}
} else {
start = NULL;
}
}
ch_free( tmp );
} else {
backsql_strfcat( &bsi->bsi_from, "b", from_tbls );
}
return LDAP_SUCCESS;
}
static int
backsql_process_filter( backsql_srch_info *bsi, Filter *f )
{
backsql_at_map_rec **vat = NULL;
AttributeDescription *ad = NULL;
unsigned i;
int done = 0;
int rc = 0;
Debug( LDAP_DEBUG_TRACE, "==>backsql_process_filter()\n", 0, 0, 0 );
if ( f->f_choice == SLAPD_FILTER_COMPUTED ) {
Debug( LDAP_DEBUG_TRACE, "backsql_process_filter(): "
"invalid filter\n", 0, 0, 0 );
rc = -1;
goto done;
}
switch( f->f_choice ) {
case LDAP_FILTER_OR:
rc = backsql_process_filter_list( bsi, f->f_or,
LDAP_FILTER_OR );
done = 1;
break;
case LDAP_FILTER_AND:
rc = backsql_process_filter_list( bsi, f->f_and,
LDAP_FILTER_AND );
done = 1;
break;
case LDAP_FILTER_NOT:
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "NOT (" /* ) */ ),
"NOT (" /* ) */ );
rc = backsql_process_filter( bsi, f->f_not );
backsql_strfcat( &bsi->bsi_flt_where, "c", /* ( */ ')' );
done = 1;
break;
case LDAP_FILTER_PRESENT:
ad = f->f_desc;
break;
case LDAP_FILTER_EXT:
ad = f->f_mra->ma_desc;
if ( f->f_mr_dnattrs ) {
/*
* if dn attrs filtering is requested, better return
* success and let test_filter() deal with candidate
* selection; otherwise we'd need to set conditions
* on the contents of the DN, e.g. "SELECT ... FROM
* ldap_entries AS attributeName WHERE attributeName.dn
* like '%attributeName=value%'"
*/
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "1=1" ), "1=1" );
bsi->bsi_status = LDAP_SUCCESS;
rc = 1;
goto done;
}
break;
default:
ad = f->f_av_desc;
break;
}
if ( rc == -1 ) {
goto done;
}
if ( done ) {
rc = 1;
goto done;
}
/*
* Turn structuralObjectClass into objectClass
*/
if ( ad == slap_schema.si_ad_objectClass
|| ad == slap_schema.si_ad_structuralObjectClass )
{
/*
* If the filter is LDAP_FILTER_PRESENT, then it's done;
* otherwise, let's see if we are lucky: filtering
* for "structural" objectclass or ancestor...
*/
switch ( f->f_choice ) {
case LDAP_FILTER_EQUALITY:
{
ObjectClass *oc = oc_bvfind( &f->f_av_value );
if ( oc == NULL ) {
Debug( LDAP_DEBUG_TRACE,
"backsql_process_filter(): "
"unknown objectClass \"%s\" "
"in filter\n",
f->f_av_value.bv_val, 0, 0 );
bsi->bsi_status = LDAP_OTHER;
rc = -1;
goto done;
}
/*
* "structural" objectClass inheritance:
* - a search for "person" will also return
* "inetOrgPerson"
* - a search for "top" will return everything
*/
if ( is_object_subclass( oc, bsi->bsi_oc->bom_oc ) ) {
static struct berval ldap_entry_objclasses = BER_BVC( "ldap_entry_objclasses" );
backsql_merge_from_tbls( bsi, &ldap_entry_objclasses );
backsql_strfcat( &bsi->bsi_flt_where, "lbl",
(ber_len_t)STRLENOF( "1=1 OR (ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entry_objclasses.oc_name='" /* ') */ ),
"1=1 OR (ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entry_objclasses.oc_name='" /* ') */,
&bsi->bsi_oc->bom_oc->soc_cname,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* (' */ "')" );
bsi->bsi_status = LDAP_SUCCESS;
rc = 1;
goto done;
}
break;
}
case LDAP_FILTER_PRESENT:
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "1=1" ), "1=1" );
bsi->bsi_status = LDAP_SUCCESS;
rc = 1;
goto done;
/* FIXME: LDAP_FILTER_EXT? */
default:
Debug( LDAP_DEBUG_TRACE,
"backsql_process_filter(): "
"illegal/unhandled filter "
"on objectClass attribute",
0, 0, 0 );
bsi->bsi_status = LDAP_OTHER;
rc = -1;
goto done;
}
} else if ( ad == slap_schema.si_ad_entryUUID ) {
unsigned long oc_id;
#ifdef BACKSQL_ARBITRARY_KEY
struct berval keyval;
#else /* ! BACKSQL_ARBITRARY_KEY */
unsigned long keyval;
char keyvalbuf[] = "18446744073709551615";
#endif /* ! BACKSQL_ARBITRARY_KEY */
switch ( f->f_choice ) {
case LDAP_FILTER_EQUALITY:
backsql_entryUUID_decode( &f->f_av_value, &oc_id, &keyval );
if ( oc_id != bsi->bsi_oc->bom_id ) {
bsi->bsi_status = LDAP_SUCCESS;
rc = -1;
goto done;
}
#ifdef BACKSQL_ARBITRARY_KEY
backsql_strfcat( &bsi->bsi_flt_where, "bcblbc",
&bsi->bsi_oc->bom_keytbl, '.',
&bsi->bsi_oc->bom_keycol,
STRLENOF( " LIKE '" ), " LIKE '",
&keyval, '\'' );
#else /* ! BACKSQL_ARBITRARY_KEY */
snprintf( keyvalbuf, sizeof( keyvalbuf ), "%lu", keyval );
backsql_strfcat( &bsi->bsi_flt_where, "bcbcs",
&bsi->bsi_oc->bom_keytbl, '.',
&bsi->bsi_oc->bom_keycol, '=', keyvalbuf );
#endif /* ! BACKSQL_ARBITRARY_KEY */
break;
case LDAP_FILTER_PRESENT:
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "1=1" ), "1=1" );
break;
default:
rc = -1;
goto done;
}
bsi->bsi_flags |= BSQL_SF_FILTER_ENTRYUUID;
rc = 1;
goto done;
} else if ( ad == slap_schema.si_ad_hasSubordinates || ad == NULL ) {
/*
* FIXME: this is not robust; e.g. a filter
* '(!(hasSubordinates=TRUE))' fails because
* in SQL it would read 'NOT (1=1)' instead
* of no condition.
* Note however that hasSubordinates is boolean,
* so a more appropriate filter would be
* '(hasSubordinates=FALSE)'
*
* A more robust search for hasSubordinates
* would * require joining the ldap_entries table
* selecting if there are descendants of the
* candidate.
*/
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "1=1" ), "1=1" );
if ( ad == slap_schema.si_ad_hasSubordinates ) {
/*
* instruct candidate selection algorithm
* and attribute list to try to detect
* if an entry has subordinates
*/
bsi->bsi_flags |= BSQL_SF_FILTER_HASSUBORDINATE;
} else {
/*
* clear attributes to fetch, to require ALL
* and try extended match on all attributes
*/
backsql_attrlist_add( bsi, NULL );
}
rc = 1;
goto done;
}
/*
* attribute inheritance:
*/
if ( backsql_supad2at( bsi->bsi_oc, ad, &vat ) ) {
bsi->bsi_status = LDAP_OTHER;
rc = -1;
goto done;
}
if ( vat == NULL ) {
/* search anyway; other parts of the filter
* may succeeed */
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "1=1" ), "1=1" );
bsi->bsi_status = LDAP_SUCCESS;
rc = 1;
goto done;
}
/* if required, open extra level of parens */
done = 0;
if ( vat[0]->bam_next || vat[1] ) {
backsql_strfcat( &bsi->bsi_flt_where, "c", '(' );
done = 1;
}
i = 0;
next:;
/* apply attr */
if ( backsql_process_filter_attr( bsi, f, vat[i] ) == -1 ) {
return -1;
}
/* if more definitions of the same attr, apply */
if ( vat[i]->bam_next ) {
backsql_strfcat( &bsi->bsi_flt_where, "l",
STRLENOF( " OR " ), " OR " );
vat[i] = vat[i]->bam_next;
goto next;
}
/* if more descendants of the same attr, apply */
i++;
if ( vat[i] ) {
backsql_strfcat( &bsi->bsi_flt_where, "l",
STRLENOF( " OR " ), " OR " );
goto next;
}
/* if needed, close extra level of parens */
if ( done ) {
backsql_strfcat( &bsi->bsi_flt_where, "c", ')' );
}
rc = 1;
done:;
if ( vat ) {
ch_free( vat );
}
Debug( LDAP_DEBUG_TRACE,
"<==backsql_process_filter() %s\n",
rc == 1 ? "succeeded" : "failed", 0, 0);
return rc;
}
static int
backsql_process_filter_eq( backsql_srch_info *bsi, backsql_at_map_rec *at,
int casefold, struct berval *filter_value )
{
/*
* maybe we should check type of at->sel_expr here somehow,
* to know whether upper_func is applicable, but for now
* upper_func stuff is made for Oracle, where UPPER is
* safely applicable to NUMBER etc.
*/
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
ber_len_t start;
backsql_strfcat( &bsi->bsi_flt_where, "cbl",
'(', /* ) */
&at->bam_sel_expr_u,
(ber_len_t)STRLENOF( "='" ),
"='" );
start = bsi->bsi_flt_where.bb_val.bv_len;
backsql_strfcat( &bsi->bsi_flt_where, "bl",
filter_value,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* (' */ "')" );
ldap_pvt_str2upper( &bsi->bsi_flt_where.bb_val.bv_val[ start ] );
} else {
backsql_strfcat( &bsi->bsi_flt_where, "cblbl",
'(', /* ) */
&at->bam_sel_expr,
(ber_len_t)STRLENOF( "='" ), "='",
filter_value,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* (' */ "')" );
}
return 1;
}
static int
backsql_process_filter_like( backsql_srch_info *bsi, backsql_at_map_rec *at,
int casefold, struct berval *filter_value )
{
/*
* maybe we should check type of at->sel_expr here somehow,
* to know whether upper_func is applicable, but for now
* upper_func stuff is made for Oracle, where UPPER is
* safely applicable to NUMBER etc.
*/
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
ber_len_t start;
backsql_strfcat( &bsi->bsi_flt_where, "cbl",
'(', /* ) */
&at->bam_sel_expr_u,
(ber_len_t)STRLENOF( " LIKE '%" ),
" LIKE '%" );
start = bsi->bsi_flt_where.bb_val.bv_len;
backsql_strfcat( &bsi->bsi_flt_where, "bl",
filter_value,
(ber_len_t)STRLENOF( /* (' */ "%')" ),
/* (' */ "%')" );
ldap_pvt_str2upper( &bsi->bsi_flt_where.bb_val.bv_val[ start ] );
} else {
backsql_strfcat( &bsi->bsi_flt_where, "cblbl",
'(', /* ) */
&at->bam_sel_expr,
(ber_len_t)STRLENOF( " LIKE '%" ),
" LIKE '%",
filter_value,
(ber_len_t)STRLENOF( /* (' */ "%')" ),
/* (' */ "%')" );
}
return 1;
}
static int
backsql_process_filter_attr( backsql_srch_info *bsi, Filter *f, backsql_at_map_rec *at )
{
backsql_info *bi = (backsql_info *)bsi->bsi_op->o_bd->be_private;
int casefold = 0;
struct berval *filter_value = NULL;
MatchingRule *matching_rule = NULL;
struct berval ordering = BER_BVC("<=");
Debug( LDAP_DEBUG_TRACE, "==>backsql_process_filter_attr(%s)\n",
at->bam_ad->ad_cname.bv_val, 0, 0 );
/*
* need to add this attribute to list of attrs to load,
* so that we can do test_filter() later
*/
backsql_attrlist_add( bsi, at->bam_ad );
backsql_merge_from_tbls( bsi, &at->bam_from_tbls );
if ( !BER_BVISNULL( &at->bam_join_where )
&& strstr( bsi->bsi_join_where.bb_val.bv_val,
at->bam_join_where.bv_val ) == NULL )
{
backsql_strfcat( &bsi->bsi_join_where, "lb",
(ber_len_t)STRLENOF( " AND " ), " AND ",
&at->bam_join_where );
}
switch ( f->f_choice ) {
case LDAP_FILTER_EQUALITY:
filter_value = &f->f_av_value;
matching_rule = at->bam_ad->ad_type->sat_equality;
goto equality_match;
/* fail over into next case */
case LDAP_FILTER_EXT:
filter_value = &f->f_mra->ma_value;
matching_rule = f->f_mr_rule;
equality_match:;
/* always uppercase strings by now */
#ifdef BACKSQL_UPPERCASE_FILTER
if ( SLAP_MR_ASSOCIATED( matching_rule,
bi->sql_caseIgnoreMatch ) )
#endif /* BACKSQL_UPPERCASE_FILTER */
{
casefold = 1;
}
if ( SLAP_MR_ASSOCIATED( matching_rule,
bi->sql_telephoneNumberMatch ) )
{
struct berval bv;
ber_len_t i;
/*
* to check for matching telephone numbers
* with intermized chars, e.g. val='1234'
* use
*
* val LIKE '%1%2%3%4%'
*/
bv.bv_len = 2 * filter_value->bv_len - 1;
bv.bv_val = ch_malloc( bv.bv_len + 1 );
bv.bv_val[ 0 ] = filter_value->bv_val[ 0 ];
for ( i = 1; i < filter_value->bv_len; i++ ) {
bv.bv_val[ 2 * i - 1 ] = '%';
bv.bv_val[ 2 * i ] = filter_value->bv_val[ i ];
}
bv.bv_val[ 2 * i - 1 ] = '\0';
(void)backsql_process_filter_like( bsi, at, casefold, &bv );
ch_free( bv.bv_val );
break;
}
/* NOTE: this is required by objectClass inheritance
* and auxiliary objectClass use in filters for slightly
* more efficient candidate selection. */
/* FIXME: a bit too many specializations to deal with
* very specific cases... */
if ( at->bam_ad == slap_schema.si_ad_objectClass
|| at->bam_ad == slap_schema.si_ad_structuralObjectClass )
{
backsql_strfcat( &bsi->bsi_flt_where, "lbl",
(ber_len_t)STRLENOF( "(ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entry_objclasses.oc_name='" /* ') */ ),
"(ldap_entries.id=ldap_entry_objclasses.entry_id AND ldap_entry_objclasses.oc_name='" /* ') */,
filter_value,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* (' */ "')" );
break;
}
/*
* maybe we should check type of at->sel_expr here somehow,
* to know whether upper_func is applicable, but for now
* upper_func stuff is made for Oracle, where UPPER is
* safely applicable to NUMBER etc.
*/
(void)backsql_process_filter_eq( bsi, at, casefold, filter_value );
break;
case LDAP_FILTER_GE:
ordering.bv_val = ">=";
/* fall thru to next case */
case LDAP_FILTER_LE:
/* always uppercase strings by now */
#ifdef BACKSQL_UPPERCASE_FILTER
if ( SLAP_MR_ASSOCIATED( at->bam_ad->ad_type->sat_ordering,
bi->sql_caseIgnoreMatch ) )
#endif /* BACKSQL_UPPERCASE_FILTER */
{
casefold = 1;
}
/*
* FIXME: should we uppercase the operands?
*/
if ( casefold && BACKSQL_AT_CANUPPERCASE( at ) ) {
ber_len_t start;
backsql_strfcat( &bsi->bsi_flt_where, "cbbc",
'(', /* ) */
&at->bam_sel_expr_u,
&ordering,
'\'' );
start = bsi->bsi_flt_where.bb_val.bv_len;
backsql_strfcat( &bsi->bsi_flt_where, "bl",
filter_value,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* (' */ "')" );
ldap_pvt_str2upper( &bsi->bsi_flt_where.bb_val.bv_val[ start ] );
} else {
backsql_strfcat( &bsi->bsi_flt_where, "cbbcbl",
'(' /* ) */ ,
&at->bam_sel_expr,
&ordering,
'\'',
&f->f_av_value,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* ( */ "')" );
}
break;
case LDAP_FILTER_PRESENT:
backsql_strfcat( &bsi->bsi_flt_where, "lbl",
(ber_len_t)STRLENOF( "NOT (" /* ) */),
"NOT (", /* ) */
&at->bam_sel_expr,
(ber_len_t)STRLENOF( /* ( */ " IS NULL)" ),
/* ( */ " IS NULL)" );
break;
case LDAP_FILTER_SUBSTRINGS:
backsql_process_sub_filter( bsi, f, at );
break;
case LDAP_FILTER_APPROX:
/* we do our best */
/*
* maybe we should check type of at->sel_expr here somehow,
* to know whether upper_func is applicable, but for now
* upper_func stuff is made for Oracle, where UPPER is
* safely applicable to NUMBER etc.
*/
(void)backsql_process_filter_like( bsi, at, 1, &f->f_av_value );
break;
default:
/* unhandled filter type; should not happen */
assert( 0 );
backsql_strfcat( &bsi->bsi_flt_where, "l",
(ber_len_t)STRLENOF( "1=1" ), "1=1" );
break;
}
Debug( LDAP_DEBUG_TRACE, "<==backsql_process_filter_attr(%s)\n",
at->bam_ad->ad_cname.bv_val, 0, 0 );
return 1;
}
static int
backsql_srch_query( backsql_srch_info *bsi, struct berval *query )
{
backsql_info *bi = (backsql_info *)bsi->bsi_op->o_bd->be_private;
int rc;
assert( query );
BER_BVZERO( query );
Debug( LDAP_DEBUG_TRACE, "==>backsql_srch_query()\n", 0, 0, 0 );
BER_BVZERO( &bsi->bsi_sel.bb_val );
BER_BVZERO( &bsi->bsi_sel.bb_val );
bsi->bsi_sel.bb_len = 0;
BER_BVZERO( &bsi->bsi_from.bb_val );
bsi->bsi_from.bb_len = 0;
BER_BVZERO( &bsi->bsi_join_where.bb_val );
bsi->bsi_join_where.bb_len = 0;
BER_BVZERO( &bsi->bsi_flt_where.bb_val );
bsi->bsi_flt_where.bb_len = 0;
backsql_strfcat( &bsi->bsi_sel, "lbcbc",
(ber_len_t)STRLENOF( "SELECT DISTINCT ldap_entries.id," ),
"SELECT DISTINCT ldap_entries.id,",
&bsi->bsi_oc->bom_keytbl,
'.',
&bsi->bsi_oc->bom_keycol,
',' );
if ( !BER_BVISNULL( &bi->sql_strcast_func ) ) {
backsql_strfcat( &bsi->bsi_sel, "blbl",
&bi->sql_strcast_func,
(ber_len_t)STRLENOF( "('" /* ') */ ),
"('" /* ') */ ,
&bsi->bsi_oc->bom_oc->soc_cname,
(ber_len_t)STRLENOF( /* (' */ "')" ),
/* (' */ "')" );
} else {
backsql_strfcat( &bsi->bsi_sel, "cbc",
'\'',
&bsi->bsi_oc->bom_oc->soc_cname,
'\'' );
}
#ifdef BACKSQL_ALIASING_QUOTE
backsql_strfcat( &bsi->bsi_sel, "lclcl",
(ber_len_t)STRLENOF( " " BACKSQL_ALIASING ),
" " BACKSQL_ALIASING,
BACKSQL_ALIASING_QUOTE,
(ber_len_t)STRLENOF( "objectClass" ),
"objectClass",
BACKSQL_ALIASING_QUOTE,
(ber_len_t)STRLENOF( ",ldap_entries.dn " BACKSQL_ALIASING "dn" ),
",ldap_entries.dn " BACKSQL_ALIASING "dn" );
#else /* ! BACKSQL_ALIASING_QUOTE */
backsql_strfcat( &bsi->bsi_sel, "l",
(ber_len_t)STRLENOF( " " BACKSQL_ALIASING "objectClass,ldap_entries.dn " BACKSQL_ALIASING "dn" ),
" " BACKSQL_ALIASING "objectClass,ldap_entries.dn " BACKSQL_ALIASING "dn" );
#endif /* ! BACKSQL_ALIASING_QUOTE */
backsql_strfcat( &bsi->bsi_from, "lb",
(ber_len_t)STRLENOF( " FROM ldap_entries," ),
" FROM ldap_entries,",
&bsi->bsi_oc->bom_keytbl );
backsql_strfcat( &bsi->bsi_join_where, "lbcbl",
(ber_len_t)STRLENOF( " WHERE " ), " WHERE ",
&bsi->bsi_oc->bom_keytbl,
'.',
&bsi->bsi_oc->bom_keycol,
(ber_len_t)STRLENOF( "=ldap_entries.keyval AND ldap_entries.oc_map_id=? AND " ),
"=ldap_entries.keyval AND ldap_entries.oc_map_id=? AND " );
switch ( bsi->bsi_scope ) {
case LDAP_SCOPE_BASE:
if ( BACKSQL_CANUPPERCASE( bi ) ) {
backsql_strfcat( &bsi->bsi_join_where, "bl",
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(ldap_entries.dn)=?" ),
"(ldap_entries.dn)=?" );
} else {
backsql_strfcat( &bsi->bsi_join_where, "l",
(ber_len_t)STRLENOF( "ldap_entries.dn=?" ),
"ldap_entries.dn=?" );
}
break;
case BACKSQL_SCOPE_BASE_LIKE:
if ( BACKSQL_CANUPPERCASE( bi ) ) {
backsql_strfcat( &bsi->bsi_join_where, "bl",
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(ldap_entries.dn) LIKE ?" ),
"(ldap_entries.dn) LIKE ?" );
} else {
backsql_strfcat( &bsi->bsi_join_where, "l",
(ber_len_t)STRLENOF( "ldap_entries.dn LIKE ?" ),
"ldap_entries.dn LIKE ?" );
}
break;
case LDAP_SCOPE_ONELEVEL:
backsql_strfcat( &bsi->bsi_join_where, "l",
(ber_len_t)STRLENOF( "ldap_entries.parent=?" ),
"ldap_entries.parent=?" );
break;
#ifdef LDAP_SCOPE_SUBORDINATE
case LDAP_SCOPE_SUBORDINATE:
#endif /* LDAP_SCOPE_SUBORDINATE */
case LDAP_SCOPE_SUBTREE:
if ( BACKSQL_CANUPPERCASE( bi ) ) {
backsql_strfcat( &bsi->bsi_join_where, "bl",
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(ldap_entries.dn) LIKE ?" ),
"(ldap_entries.dn) LIKE ?" );
} else {
backsql_strfcat( &bsi->bsi_join_where, "l",
(ber_len_t)STRLENOF( "ldap_entries.dn LIKE ?" ),
"ldap_entries.dn LIKE ?" );
}
break;
default:
assert( 0 );
}
rc = backsql_process_filter( bsi, bsi->bsi_filter );
if ( rc > 0 ) {
struct berbuf bb = BB_NULL;
backsql_strfcat( &bb, "bbblb",
&bsi->bsi_sel.bb_val,
&bsi->bsi_from.bb_val,
&bsi->bsi_join_where.bb_val,
(ber_len_t)STRLENOF( " AND " ), " AND ",
&bsi->bsi_flt_where.bb_val );
*query = bb.bb_val;
} else if ( rc < 0 ) {
/*
* Indicates that there's no possible way the filter matches
* anything. No need to issue the query
*/
free( query->bv_val );
BER_BVZERO( query );
}
free( bsi->bsi_sel.bb_val.bv_val );
BER_BVZERO( &bsi->bsi_sel.bb_val );
bsi->bsi_sel.bb_len = 0;
free( bsi->bsi_from.bb_val.bv_val );
BER_BVZERO( &bsi->bsi_from.bb_val );
bsi->bsi_from.bb_len = 0;
free( bsi->bsi_join_where.bb_val.bv_val );
BER_BVZERO( &bsi->bsi_join_where.bb_val );
bsi->bsi_join_where.bb_len = 0;
free( bsi->bsi_flt_where.bb_val.bv_val );
BER_BVZERO( &bsi->bsi_flt_where.bb_val );
bsi->bsi_flt_where.bb_len = 0;
Debug( LDAP_DEBUG_TRACE, "<==backsql_srch_query() returns %s\n",
query->bv_val ? query->bv_val : "NULL", 0, 0 );
return ( rc <= 0 ? 1 : 0 );
}
static int
backsql_oc_get_candidates( void *v_oc, void *v_bsi )
{
backsql_oc_map_rec *oc = v_oc;
backsql_srch_info *bsi = v_bsi;
backsql_info *bi = (backsql_info *)bsi->bsi_op->o_bd->be_private;
struct berval query;
SQLHSTMT sth;
RETCODE rc;
int res;
BACKSQL_ROW_NTS row;
int i;
int j;
int n_candidates = bsi->bsi_n_candidates;
/*
* + 1 because we need room for '%';
* + 1 because we need room for ',' for LDAP_SCOPE_SUBORDINATE;
* this makes a subtree
* search for a DN BACKSQL_MAX_DN_LEN long legal
* if it returns that DN only
*/
char tmp_base_ndn[ BACKSQL_MAX_DN_LEN + 1 + 1 ];
bsi->bsi_status = LDAP_SUCCESS;
Debug( LDAP_DEBUG_TRACE, "==>backsql_oc_get_candidates(): oc=\"%s\"\n",
BACKSQL_OC_NAME( oc ), 0, 0 );
if ( bsi->bsi_n_candidates == -1 ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"unchecked limit has been overcome\n", 0, 0, 0 );
/* should never get here */
assert( 0 );
bsi->bsi_status = LDAP_ADMINLIMIT_EXCEEDED;
return BACKSQL_AVL_STOP;
}
bsi->bsi_oc = oc;
res = backsql_srch_query( bsi, &query );
if ( res ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error while constructing query for objectclass \"%s\"\n",
oc->bom_oc->soc_cname.bv_val, 0, 0 );
/*
* FIXME: need to separate errors from legally
* impossible filters
*/
switch ( bsi->bsi_status ) {
case LDAP_SUCCESS:
case LDAP_UNDEFINED_TYPE:
case LDAP_NO_SUCH_OBJECT:
/* we are conservative... */
default:
bsi->bsi_status = LDAP_SUCCESS;
/* try next */
return BACKSQL_AVL_CONTINUE;
case LDAP_ADMINLIMIT_EXCEEDED:
case LDAP_OTHER:
/* don't try any more */
return BACKSQL_AVL_STOP;
}
}
if ( BER_BVISNULL( &query ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"could not construct query for objectclass \"%s\"\n",
oc->bom_oc->soc_cname.bv_val, 0, 0 );
bsi->bsi_status = LDAP_SUCCESS;
return BACKSQL_AVL_CONTINUE;
}
Debug( LDAP_DEBUG_TRACE, "Constructed query: %s\n",
query.bv_val, 0, 0 );
rc = backsql_Prepare( bsi->bsi_dbh, &sth, query.bv_val, 0 );
free( query.bv_val );
BER_BVZERO( &query );
if ( rc != SQL_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error preparing query\n", 0, 0, 0 );
backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh, sth, rc );
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
Debug( LDAP_DEBUG_TRACE, "id: '%ld'\n", bsi->bsi_oc->bom_id, 0, 0 );
rc = backsql_BindParamInt( sth, 1, SQL_PARAM_INPUT,
&bsi->bsi_oc->bom_id );
if ( rc != SQL_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error binding objectclass id parameter\n", 0, 0, 0 );
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
switch ( bsi->bsi_scope ) {
case LDAP_SCOPE_BASE:
case BACKSQL_SCOPE_BASE_LIKE:
/*
* We do not accept DNs longer than BACKSQL_MAX_DN_LEN;
* however this should be handled earlier
*/
if ( bsi->bsi_base_ndn->bv_len > BACKSQL_MAX_DN_LEN ) {
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
AC_MEMCPY( tmp_base_ndn, bsi->bsi_base_ndn->bv_val,
bsi->bsi_base_ndn->bv_len + 1 );
/* uppercase DN only if the stored DN can be uppercased
* for comparison */
if ( BACKSQL_CANUPPERCASE( bi ) ) {
ldap_pvt_str2upper( tmp_base_ndn );
}
Debug( LDAP_DEBUG_TRACE, "(base)dn: \"%s\"\n",
tmp_base_ndn, 0, 0 );
rc = backsql_BindParamStr( sth, 2, SQL_PARAM_INPUT,
tmp_base_ndn, BACKSQL_MAX_DN_LEN );
if ( rc != SQL_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error binding base_ndn parameter\n", 0, 0, 0 );
backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh,
sth, rc );
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
break;
#ifdef LDAP_SCOPE_SUBORDINATE
case LDAP_SCOPE_SUBORDINATE:
#endif /* LDAP_SCOPE_SUBORDINATE */
case LDAP_SCOPE_SUBTREE:
{
/*
* We do not accept DNs longer than BACKSQL_MAX_DN_LEN;
* however this should be handled earlier
*/
if ( bsi->bsi_base_ndn->bv_len > BACKSQL_MAX_DN_LEN ) {
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
/*
* Sets the parameters for the SQL built earlier
* NOTE that all the databases could actually use
* the TimesTen version, which would be cleaner
* and would also eliminate the need for the
* subtree_cond line in the configuration file.
* For now, I'm leaving it the way it is,
* so non-TimesTen databases use the original code.
* But at some point this should get cleaned up.
*
* If "dn" is being used, do a suffix search.
* If "dn_ru" is being used, do a prefix search.
*/
if ( BACKSQL_HAS_LDAPINFO_DN_RU( bi ) ) {
tmp_base_ndn[ 0 ] = '\0';
for ( i = 0, j = bsi->bsi_base_ndn->bv_len - 1;
j >= 0; i++, j--) {
tmp_base_ndn[ i ] = bsi->bsi_base_ndn->bv_val[ j ];
}
#ifdef LDAP_SCOPE_SUBORDINATE
if ( bsi->bsi_scope == LDAP_SCOPE_SUBORDINATE ) {
tmp_base_ndn[ i++ ] = ',';
}
#endif /* LDAP_SCOPE_SUBORDINATE */
tmp_base_ndn[ i ] = '%';
tmp_base_ndn[ i + 1 ] = '\0';
} else {
i = 0;
tmp_base_ndn[ i++ ] = '%';
#ifdef LDAP_SCOPE_SUBORDINATE
if ( bsi->bsi_scope == LDAP_SCOPE_SUBORDINATE ) {
tmp_base_ndn[ i++ ] = ',';
}
#endif /* LDAP_SCOPE_SUBORDINATE */
AC_MEMCPY( &tmp_base_ndn[ i ], bsi->bsi_base_ndn->bv_val,
bsi->bsi_base_ndn->bv_len + 1 );
}
/* uppercase DN only if the stored DN can be uppercased
* for comparison */
if ( BACKSQL_CANUPPERCASE( bi ) ) {
ldap_pvt_str2upper( tmp_base_ndn );
}
#ifdef LDAP_SCOPE_SUBORDINATE
if ( bsi->bsi_scope == LDAP_SCOPE_SUBORDINATE ) {
Debug( LDAP_DEBUG_TRACE, "(children)dn: \"%s\"\n",
tmp_base_ndn, 0, 0 );
} else
#endif /* LDAP_SCOPE_SUBORDINATE */
{
Debug( LDAP_DEBUG_TRACE, "(sub)dn: \"%s\"\n",
tmp_base_ndn, 0, 0 );
}
rc = backsql_BindParamStr( sth, 2, SQL_PARAM_INPUT,
tmp_base_ndn, BACKSQL_MAX_DN_LEN );
if ( rc != SQL_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error binding base_ndn parameter (2)\n",
0, 0, 0 );
backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh,
sth, rc );
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
break;
}
case LDAP_SCOPE_ONELEVEL:
assert( !BER_BVISNULL( &bsi->bsi_base_id.eid_ndn ) );
#ifdef BACKSQL_ARBITRARY_KEY
Debug( LDAP_DEBUG_TRACE, "(one)id: \"%s\"\n",
bsi->bsi_base_id.eid_id.bv_val, 0, 0 );
#else /* ! BACKSQL_ARBITRARY_KEY */
Debug( LDAP_DEBUG_TRACE, "(one)id: '%lu'\n",
bsi->bsi_base_id.eid_id, 0, 0 );
#endif /* ! BACKSQL_ARBITRARY_KEY */
rc = backsql_BindParamID( sth, 2, SQL_PARAM_INPUT,
&bsi->bsi_base_id.eid_id );
if ( rc != SQL_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error binding base id parameter\n", 0, 0, 0 );
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
break;
}
rc = SQLExecute( sth );
if ( !BACKSQL_SUCCESS( rc ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"error executing query\n", 0, 0, 0 );
backsql_PrintErrors( bi->sql_db_env, bsi->bsi_dbh, sth, rc );
SQLFreeStmt( sth, SQL_DROP );
bsi->bsi_status = LDAP_OTHER;
return BACKSQL_AVL_CONTINUE;
}
backsql_BindRowAsStrings( sth, &row );
rc = SQLFetch( sth );
for ( ; BACKSQL_SUCCESS( rc ); rc = SQLFetch( sth ) ) {
struct berval dn, pdn, ndn;
backsql_entryID *c_id = NULL;
int ret;
ber_str2bv( row.cols[ 3 ], 0, 0, &dn );
if ( backsql_api_odbc2dn( bsi->bsi_op, bsi->bsi_rs, &dn ) ) {
continue;
}
ret = dnPrettyNormal( NULL, &dn, &pdn, &ndn, NULL );
if ( dn.bv_val != row.cols[ 3 ] ) {
free( dn.bv_val );
}
if ( ret != LDAP_SUCCESS ) {
continue;
}
if ( bi->sql_baseObject && dn_match( &ndn, &bi->sql_baseObject->e_nname ) ) {
free( pdn.bv_val );
free( ndn.bv_val );
continue;
}
c_id = (backsql_entryID *)ch_calloc( 1,
sizeof( backsql_entryID ) );
#ifdef BACKSQL_ARBITRARY_KEY
ber_str2bv( row.cols[ 0 ], 0, 1, &c_id->eid_id );
ber_str2bv( row.cols[ 1 ], 0, 1, &c_id->eid_keyval );
#else /* ! BACKSQL_ARBITRARY_KEY */
c_id->eid_id = strtol( row.cols[ 0 ], NULL, 0 );
c_id->eid_keyval = strtol( row.cols[ 1 ], NULL, 0 );
#endif /* ! BACKSQL_ARBITRARY_KEY */
c_id->eid_oc_id = bsi->bsi_oc->bom_id;
c_id->eid_dn = pdn;
c_id->eid_ndn = ndn;
/* append at end of list ... */
c_id->eid_next = NULL;
*bsi->bsi_id_listtail = c_id;
bsi->bsi_id_listtail = &c_id->eid_next;
#ifdef BACKSQL_ARBITRARY_KEY
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"added entry id=%s, keyval=%s dn=\"%s\"\n",
c_id->eid_id.bv_val, c_id->eid_keyval.bv_val,
row.cols[ 3 ] );
#else /* ! BACKSQL_ARBITRARY_KEY */
Debug( LDAP_DEBUG_TRACE, "backsql_oc_get_candidates(): "
"added entry id=%ld, keyval=%ld dn=\"%s\"\n",
c_id->eid_id, c_id->eid_keyval, row.cols[ 3 ] );
#endif /* ! BACKSQL_ARBITRARY_KEY */
/* count candidates, for unchecked limit */
bsi->bsi_n_candidates--;
if ( bsi->bsi_n_candidates == -1 ) {
break;
}
}
backsql_FreeRow( &row );
SQLFreeStmt( sth, SQL_DROP );
Debug( LDAP_DEBUG_TRACE, "<==backsql_oc_get_candidates(): %d\n",
n_candidates - bsi->bsi_n_candidates, 0, 0 );
return ( bsi->bsi_n_candidates == -1 ? BACKSQL_AVL_STOP : BACKSQL_AVL_CONTINUE );
}
int
backsql_search( Operation *op, SlapReply *rs )
{
backsql_info *bi = (backsql_info *)op->o_bd->be_private;
SQLHDBC dbh;
int sres;
Entry user_entry = { 0 };
int manageDSAit;
time_t stoptime = 0;
backsql_srch_info bsi;
backsql_entryID *eid = NULL;
struct berval nbase = BER_BVNULL;
manageDSAit = get_manageDSAit( op );
Debug( LDAP_DEBUG_TRACE, "==>backsql_search(): "
"base=\"%s\", filter=\"%s\", scope=%d,",
op->o_req_ndn.bv_val,
op->ors_filterstr.bv_val,
op->ors_scope );
Debug( LDAP_DEBUG_TRACE, " deref=%d, attrsonly=%d, "
"attributes to load: %s\n",
op->ors_deref,
op->ors_attrsonly,
op->ors_attrs == NULL ? "all" : "custom list" );
if ( op->o_req_ndn.bv_len > BACKSQL_MAX_DN_LEN ) {
Debug( LDAP_DEBUG_TRACE, "backsql_search(): "
"search base length (%ld) exceeds max length (%d)\n",
op->o_req_ndn.bv_len, BACKSQL_MAX_DN_LEN, 0 );
/*
* FIXME: a LDAP_NO_SUCH_OBJECT could be appropriate
* since it is impossible that such a long DN exists
* in the backend
*/
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
return 1;
}
sres = backsql_get_db_conn( op, &dbh );
if ( sres != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_search(): "
"could not get connection handle - exiting\n",
0, 0, 0 );
rs->sr_err = sres;
rs->sr_text = sres == LDAP_OTHER ? "SQL-backend error" : NULL;
send_ldap_result( op, rs );
return 1;
}
/* compute it anyway; root does not use it */
stoptime = op->o_time + op->ors_tlimit;
nbase = op->o_req_ndn;
if ( backsql_api_dn2odbc( op, rs, &nbase ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_search(): "
"backsql_api_dn2odbc failed\n",
0, 0, 0 );
rs->sr_err = LDAP_OTHER;
rs->sr_text = "SQL-backend error";
send_ldap_result( op, rs );
goto done;
}
/* init search */
rs->sr_err = backsql_init_search( &bsi, &nbase,
op->ors_scope,
op->ors_slimit, op->ors_tlimit,
stoptime, op->ors_filter,
dbh, op, rs, op->ors_attrs, 1 );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
bsi.bsi_n_candidates =
( op->ors_limit == NULL /* isroot == TRUE */ ? -2 :
( op->ors_limit->lms_s_unchecked == -1 ? -2 :
( op->ors_limit->lms_s_unchecked ) ) );
switch ( bsi.bsi_scope ) {
case LDAP_SCOPE_BASE:
case BACKSQL_SCOPE_BASE_LIKE:
/*
* probably already found...
*/
bsi.bsi_id_list = &bsi.bsi_base_id;
bsi.bsi_id_listtail = &bsi.bsi_base_id.eid_next;
break;
case LDAP_SCOPE_SUBTREE:
/*
* if baseObject is defined, and if it is the root
* of the search, add it to the candidate list
*/
if ( bi->sql_baseObject && BACKSQL_IS_BASEOBJECT_ID( &bsi.bsi_base_id.eid_id ) )
{
bsi.bsi_id_list = &bsi.bsi_base_id;
bsi.bsi_id_listtail = &bsi.bsi_base_id.eid_next;
}
/* FALLTHRU */
default:
/*
* for each objectclass we try to construct query which gets IDs
* of entries matching LDAP query filter and scope (or at least
* candidates), and get the IDs
*/
avl_apply( bi->sql_oc_by_oc, backsql_oc_get_candidates,
&bsi, BACKSQL_AVL_STOP, AVL_INORDER );
}
if ( op->ors_limit != NULL /* isroot == FALSE */
&& op->ors_limit->lms_s_unchecked != -1
&& bsi.bsi_n_candidates == -1 )
{
rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
send_ldap_result( op, rs );
goto done;
}
/*
* now we load candidate entries (only those attributes
* mentioned in attrs and filter), test it against full filter
* and then send to client; don't free entry_id if baseObject...
*/
for ( eid = bsi.bsi_id_list;
eid != NULL;
eid = backsql_free_entryID( eid, eid == &bsi.bsi_base_id ? 0 : 1 ) )
{
int rc;
Attribute *a_hasSubordinate = NULL,
*a_entryUUID = NULL,
*a = NULL;
Entry *e = NULL;
/* check for abandon */
if ( op->o_abandon ) {
break;
}
/* check time limit */
if ( op->ors_tlimit != SLAP_NO_LIMIT
&& slap_get_time() > stoptime )
{
rs->sr_err = LDAP_TIMELIMIT_EXCEEDED;
rs->sr_ctrls = NULL;
rs->sr_ref = rs->sr_v2ref;
rs->sr_err = (rs->sr_v2ref == NULL) ? LDAP_SUCCESS
: LDAP_REFERRAL;
send_ldap_result( op, rs );
goto end_of_search;
}
#ifdef BACKSQL_ARBITRARY_KEY
Debug(LDAP_DEBUG_TRACE, "backsql_search(): loading data "
"for entry id=%s, oc_id=%ld, keyval=%s\n",
eid->eid_id.bv_val, eid->eid_oc_id,
eid->eid_keyval.bv_val );
#else /* ! BACKSQL_ARBITRARY_KEY */
Debug(LDAP_DEBUG_TRACE, "backsql_search(): loading data "
"for entry id=%ld, oc_id=%ld, keyval=%ld\n",
eid->eid_id, eid->eid_oc_id, eid->eid_keyval );
#endif /* ! BACKSQL_ARBITRARY_KEY */
/* don't recollect baseObject ... */
if ( BACKSQL_IS_BASEOBJECT_ID( &eid->eid_id ) ) {
e = bi->sql_baseObject;
} else {
bsi.bsi_e = &user_entry;
rc = backsql_id2entry( &bsi, eid );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_search(): "
"error %d in backsql_id2entry() "
"- skipping\n", rc, 0, 0 );
continue;
}
e = &user_entry;
}
/* check scope */
switch ( op->ors_scope ) {
case LDAP_SCOPE_BASE:
case BACKSQL_SCOPE_BASE_LIKE:
if ( !dn_match( &e->e_nname, &op->o_req_ndn ) ) {
goto next_entry;
}
break;
case LDAP_SCOPE_ONE:
{
struct berval rdn = user_entry.e_nname;
rdn.bv_len -= op->o_req_ndn.bv_len + STRLENOF( "," );
if ( !dnIsOneLevelRDN( &rdn ) ) {
goto next_entry;
}
/* fall thru */
}
#ifdef LDAP_SCOPE_SUBORDINATE
case LDAP_SCOPE_SUBORDINATE:
/* discard the baseObject entry */
if ( dn_match( &e->e_nname, &op->o_req_ndn ) ) {
goto next_entry;
}
/* FALLTHRU */
#endif /* LDAP_SCOPE_SUBORDINATE */
case LDAP_SCOPE_SUBTREE:
/* FIXME: this should never fail... */
if ( !dnIsSuffix( &e->e_nname, &op->o_req_ndn ) ) {
goto next_entry;
}
break;
}
if ( !manageDSAit &&
op->ors_scope != LDAP_SCOPE_BASE &&
op->ors_scope != BACKSQL_SCOPE_BASE_LIKE &&
is_entry_referral( e ) )
{
BerVarray refs;
refs = get_entry_referrals( op, e );
if ( !refs ) {
backsql_srch_info bsi2 = { 0 };
Entry user_entry2 = { 0 };
/* retry with the full entry... */
(void)backsql_init_search( &bsi2,
&e->e_nname,
LDAP_SCOPE_BASE,
-1, -1, -1, NULL,
dbh, op, rs, NULL, 0 );
bsi2.bsi_e = &user_entry2;
rc = backsql_id2entry( &bsi2, eid );
if ( rc == LDAP_SUCCESS ) {
if ( is_entry_referral( &user_entry2 ) )
{
refs = get_entry_referrals( op,
&user_entry2 );
} /* else: FIXME: inconsistency! */
entry_clean( &user_entry2 );
}
}
if ( refs ) {
rs->sr_ref = referral_rewrite( refs,
&e->e_name,
&op->o_req_dn,
op->ors_scope );
ber_bvarray_free( refs );
}
if ( !rs->sr_ref ) {
rs->sr_text = "bad_referral object";
}
rs->sr_err = LDAP_REFERRAL;
rs->sr_matched = user_entry.e_name.bv_val;
send_search_reference( op, rs );
ber_bvarray_free( rs->sr_ref );
rs->sr_ref = NULL;
rs->sr_matched = NULL;
goto next_entry;
}
/*
* We use this flag since we need to parse the filter
* anyway; we should have used the frontend API function
* filter_has_subordinates()
*/
if ( bsi.bsi_flags & BSQL_SF_FILTER_HASSUBORDINATE ) {
rc = backsql_has_children( bi, dbh, &e->e_nname );
switch ( rc ) {
case LDAP_COMPARE_TRUE:
case LDAP_COMPARE_FALSE:
a_hasSubordinate = slap_operational_hasSubordinate( rc == LDAP_COMPARE_TRUE );
if ( a_hasSubordinate != NULL ) {
for ( a = user_entry.e_attrs;
a && a->a_next;
a = a->a_next );
a->a_next = a_hasSubordinate;
}
rc = 0;
break;
default:
Debug(LDAP_DEBUG_TRACE,
"backsql_search(): "
"has_children failed( %d)\n",
rc, 0, 0 );
rc = 1;
goto next_entry;
}
}
if ( bsi.bsi_flags & BSQL_SF_FILTER_ENTRYUUID ) {
a_entryUUID = backsql_operational_entryUUID( bi, eid );
if ( a_entryUUID != NULL ) {
for ( a = user_entry.e_attrs;
a && a->a_next;
a = a->a_next );
a->a_next = a_entryUUID;
}
}
if ( test_filter( op, e, op->ors_filter ) == LDAP_COMPARE_TRUE )
{
#if 0
if ( a_hasSubordinate && !( bsi.bsi_flags & BSQL_SF_ALL_OPER )
&& !ad_inlist( slap_schema.si_ad_hasSubordinates, op->ors_attrs ) )
{
a->a_next = NULL;
attr_free( a_hasSubordinate );
a_hasSubordinate = NULL;
}
if ( a_entryUUID && !( bsi.bsi_flags & BSQL_SF_ALL_OPER )
&& !ad_inlist( slap_schema.si_ad_entryUUID, op->ors_attrs ) )
{
a->a_next = NULL;
attr_free( a_hasSubordinate );
a_hasSubordinate = NULL;
}
#endif
rs->sr_attrs = op->ors_attrs;
rs->sr_operational_attrs = NULL;
rs->sr_entry = e;
if ( e == &user_entry ) {
rs->sr_flags = REP_ENTRY_MODIFIABLE;
}
sres = send_search_entry( op, rs );
rs->sr_entry = NULL;
rs->sr_attrs = NULL;
rs->sr_operational_attrs = NULL;
switch ( sres ) {
case 0:
break;
default:
/*
* FIXME: send_search_entry failed;
* better stop
*/
case -1:
Debug( LDAP_DEBUG_TRACE, "backsql_search(): "
"connection lost\n", 0, 0, 0 );
goto end_of_search;
}
}
next_entry:;
entry_clean( &user_entry );
if ( op->ors_slimit != SLAP_NO_LIMIT
&& rs->sr_nentries >= op->ors_slimit )
{
rs->sr_err = LDAP_SIZELIMIT_EXCEEDED;
send_ldap_result( op, rs );
goto end_of_search;
}
}
end_of_search:;
/* in case we got here accidentally */
entry_clean( &user_entry );
if ( rs->sr_nentries > 0 ) {
rs->sr_ref = rs->sr_v2ref;
rs->sr_err = (rs->sr_v2ref == NULL) ? LDAP_SUCCESS
: LDAP_REFERRAL;
} else {
rs->sr_err = bsi.bsi_status;
}
send_ldap_result( op, rs );
if ( rs->sr_v2ref ) {
ber_bvarray_free( rs->sr_v2ref );
rs->sr_v2ref = NULL;
}
done:;
if ( !BER_BVISNULL( &bsi.bsi_base_id.eid_ndn ) ) {
(void)backsql_free_entryID( &bsi.bsi_base_id, 0 );
}
if ( bsi.bsi_attrs ) {
ch_free( bsi.bsi_attrs );
}
if ( !BER_BVISNULL( &nbase )
&& nbase.bv_val != op->o_req_ndn.bv_val )
{
ch_free( nbase.bv_val );
}
/* restore scope ... FIXME: this should be done before ANY
* frontend call that uses op */
if ( op->ors_scope == BACKSQL_SCOPE_BASE_LIKE ) {
op->ors_scope = LDAP_SCOPE_BASE;
}
Debug( LDAP_DEBUG_TRACE, "<==backsql_search()\n", 0, 0, 0 );
return 0;
}
#endif /* SLAPD_SQL */
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