openldap/servers/slapd/search.c

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/* $OpenLDAP$ */
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/*
* Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
#include <ac/socket.h>
#include "ldap_pvt.h"
#include "slap.h"
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int
do_search(
Connection *conn, /* where to send results */
Operation *op /* info about the op to which we're responding */
)
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{
int i, err;
ber_int_t scope, deref, attrsonly;
ber_int_t sizelimit, timelimit;
char *base = NULL, *nbase = NULL, *fstr = NULL;
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Filter *filter = NULL;
char **attrs = NULL;
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Backend *be;
int rc;
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Debug( LDAP_DEBUG_TRACE, "do_search\n", 0, 0, 0 );
if( op->o_bind_in_progress ) {
Debug( LDAP_DEBUG_ANY, "do_search: SASL bind in progress.\n",
0, 0, 0 );
send_ldap_result( conn, op, LDAP_SASL_BIND_IN_PROGRESS,
NULL, "SASL bind in progress", NULL, NULL );
return LDAP_SASL_BIND_IN_PROGRESS;
}
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/*
* Parse the search request. It looks like this:
*
* SearchRequest := [APPLICATION 3] SEQUENCE {
* baseObject DistinguishedName,
* scope ENUMERATED {
* baseObject (0),
* singleLevel (1),
* wholeSubtree (2)
* },
* derefAliases ENUMERATED {
* neverDerefaliases (0),
* derefInSearching (1),
* derefFindingBaseObj (2),
* alwaysDerefAliases (3)
* },
* sizelimit INTEGER (0 .. 65535),
* timelimit INTEGER (0 .. 65535),
* attrsOnly BOOLEAN,
* filter Filter,
* attributes SEQUENCE OF AttributeType
* }
*/
/* baseObject, scope, derefAliases, sizelimit, timelimit, attrsOnly */
if ( ber_scanf( op->o_ber, "{aiiiib",
&base, &scope, &deref, &sizelimit,
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&timelimit, &attrsonly ) == LBER_ERROR ) {
send_ldap_disconnect( conn, op,
LDAP_PROTOCOL_ERROR, "decoding error" );
rc = -1;
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goto return_results;
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}
switch( scope ) {
case LDAP_SCOPE_BASE:
case LDAP_SCOPE_ONELEVEL:
case LDAP_SCOPE_SUBTREE:
break;
default:
send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
NULL, "invalid scope", NULL, NULL );
rc = -1;
goto return_results;
}
switch( deref ) {
case LDAP_DEREF_NEVER:
case LDAP_DEREF_FINDING:
case LDAP_DEREF_SEARCHING:
case LDAP_DEREF_ALWAYS:
break;
default:
send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
NULL, "invalid deref", NULL, NULL );
rc = -1;
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goto return_results;
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}
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nbase = ch_strdup( base );
if( dn_normalize( nbase ) == NULL ) {
send_ldap_result( conn, op, LDAP_INVALID_DN_SYNTAX,
NULL, "invalid DN", NULL, NULL );
rc = -1;
goto return_results;
}
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Debug( LDAP_DEBUG_ARGS, "SRCH \"%s\" %d %d", base, scope, deref );
Debug( LDAP_DEBUG_ARGS, " %d %d %d\n", sizelimit, timelimit,
attrsonly);
/* filter - returns a "normalized" version */
if ( (err = get_filter( conn, op->o_ber, &filter, &fstr )) != 0 ) {
if( err == -1 ) {
send_ldap_disconnect( conn, op,
LDAP_PROTOCOL_ERROR, "decode error" );
} else {
send_ldap_result( conn, op, err,
NULL, "Bad search filter", NULL, NULL );
}
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rc = -1;
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goto return_results;
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}
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Debug( LDAP_DEBUG_ARGS, " filter: %s\n", fstr, 0, 0 );
/* attributes */
if ( ber_scanf( op->o_ber, /*{*/ "{v}}", &attrs ) == LBER_ERROR ) {
send_ldap_disconnect( conn, op,
LDAP_PROTOCOL_ERROR, "decoding error" );
rc = -1;
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goto return_results;
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}
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if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "do_search: get_ctrls failed\n", 0, 0, 0 );
goto return_results;
}
rc = 0;
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Debug( LDAP_DEBUG_ARGS, " attrs:", 0, 0, 0 );
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if ( attrs != NULL ) {
for ( i = 0; attrs[i] != NULL; i++ ) {
attr_normalize( attrs[i] );
Debug( LDAP_DEBUG_ARGS, " %s", attrs[i], 0, 0 );
}
}
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Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 );
Statslog( LDAP_DEBUG_STATS,
"conn=%ld op=%d SRCH base=\"%s\" scope=%d filter=\"%s\"\n",
op->o_connid, op->o_opid, base, scope, fstr );
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if ( scope == LDAP_SCOPE_BASE ) {
#if defined( SLAPD_MONITOR_DN )
if ( strcmp( nbase, SLAPD_MONITOR_DN ) == 0 ) {
monitor_info( conn, op, attrs, attrsonly );
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goto return_results;
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}
#endif
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#if defined( SLAPD_CONFIG_DN )
if ( strcmp( nbase, SLAPD_CONFIG_DN ) == 0 ) {
config_info( conn, op, attrs, attrsonly );
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goto return_results;
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}
#endif
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#if defined( SLAPD_SCHEMA_DN )
if ( strcmp( nbase, SLAPD_SCHEMA_DN ) == 0 ) {
schema_info( conn, op, attrs, attrsonly );
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goto return_results;
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}
#endif
if ( strcmp( nbase, LDAP_ROOT_DSE ) == 0 ) {
root_dse_info( conn, op, attrs, attrsonly );
goto return_results;
}
}
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/*
* We could be serving multiple database backends. Select the
* appropriate one, or send a referral to our "referral server"
* if we don't hold it.
*/
if ( (be = select_backend( nbase )) == NULL ) {
send_ldap_result( conn, op, rc = LDAP_REFERRAL,
NULL, NULL, default_referral, NULL );
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goto return_results;
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}
/* make sure this backend recongizes critical controls */
rc = backend_check_controls( be, conn, op ) ;
if( rc != LDAP_SUCCESS ) {
send_ldap_result( conn, op, rc,
NULL, NULL, NULL, NULL );
}
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/* deref the base if needed */
nbase = suffix_alias( be, nbase );
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/* actually do the search and send the result(s) */
if ( be->be_search ) {
(*be->be_search)( be, conn, op, base, nbase, scope, deref, sizelimit,
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timelimit, filter, fstr, attrs, attrsonly );
} else {
send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
NULL, "Function not implemented", NULL, NULL );
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}
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return_results:;
if( base != NULL) free( base );
if( nbase != NULL) free( nbase );
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if( fstr != NULL) free( fstr );
if( filter != NULL) filter_free( filter );
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if ( attrs != NULL ) {
charray_free( attrs );
}
return rc;
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}