X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Flibldap%2Funbind.c;h=d6f247d9004a15cde8637be0cfeb73ce3ae96988;hb=550dc4aaeee2b9f2ed25b451d950bd5e7088652d;hp=63237ba8e236a16ec555a228c1bd9fcdca5b4b50;hpb=4d2761a6a64eaa1c4d5f7949277ecfe25b42ca83;p=openldap

diff --git a/libraries/libldap/unbind.c b/libraries/libldap/unbind.c
index 63237ba8e2..d6f247d900 100644
--- a/libraries/libldap/unbind.c
+++ b/libraries/libldap/unbind.c
@@ -1,18 +1,25 @@
-/*
- * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
- */
-/*  Portions
- *  Copyright (c) 1990 Regents of the University of Michigan.
- *  All rights reserved.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2011 The OpenLDAP Foundation.
+ * 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.
  *
- *  unbind.c
+ * 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>.
+ */
+/* Portions Copyright (c) 1990 Regents of the University of Michigan.
+ * All rights reserved.
  */
 
 #include "portable.h"
 
 #include <stdio.h>
-#include <stdlib.h>
+#include <ac/stdlib.h>
 
 #include <ac/socket.h>
 #include <ac/string.h>
@@ -20,130 +27,279 @@
 
 #include "ldap-int.h"
 
+/* An Unbind Request looks like this:
+ *
+ *	UnbindRequest ::= [APPLICATION 2] NULL
+ *
+ * and has no response.  (Source: RFC 4511)
+ */
+
+int
+ldap_unbind_ext(
+	LDAP *ld,
+	LDAPControl **sctrls,
+	LDAPControl **cctrls )
+{
+	int rc;
+
+	assert( ld != NULL );
+	assert( LDAP_VALID( ld ) );
+
+	/* check client controls */
+	rc = ldap_int_client_controls( ld, cctrls );
+	if( rc != LDAP_SUCCESS ) return rc;
+
+	return ldap_ld_free( ld, 1, sctrls, cctrls );
+}
+
+int
+ldap_unbind_ext_s(
+	LDAP *ld,
+	LDAPControl **sctrls,
+	LDAPControl **cctrls )
+{
+	return ldap_unbind_ext( ld, sctrls, cctrls );
+}
 
 int
 ldap_unbind( LDAP *ld )
 {
 	Debug( LDAP_DEBUG_TRACE, "ldap_unbind\n", 0, 0, 0 );
 
-	return( ldap_ld_free( ld, 1 ));
+	return( ldap_unbind_ext( ld, NULL, NULL ) );
 }
 
 
 int
-ldap_ld_free( LDAP *ld, int close )
+ldap_ld_free(
+	LDAP *ld,
+	int close,
+	LDAPControl **sctrls,
+	LDAPControl **cctrls )
 {
 	LDAPMessage	*lm, *next;
 	int		err = LDAP_SUCCESS;
-#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
-	LDAPRequest	*lr, *nextlr;
-#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
-
-	if ( ld->ld_sb.sb_naddr == 0 ) {
-#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
-		/* free LDAP structure and outstanding requests/responses */
-		for ( lr = ld->ld_requests; lr != NULL; lr = nextlr ) {
-			nextlr = lr->lr_next;
-			ldap_free_request( ld, lr );
-		}
 
-		/* free and unbind from all open connections */
-		while ( ld->ld_conns != NULL ) {
-			ldap_free_connection( ld, ld->ld_conns, 1, close );
+	LDAP_MUTEX_LOCK( &ld->ld_ldcmutex );
+	/* Someone else is still using this ld. */
+	if (ld->ld_ldcrefcnt > 1) {	/* but not last thread */
+		/* clean up self only */
+		ld->ld_ldcrefcnt--;
+		if ( ld->ld_error != NULL ) {
+			LDAP_FREE( ld->ld_error );
+			ld->ld_error = NULL;
 		}
-#else /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
-		if ( close ) {
-			err = ldap_send_unbind( ld, &ld->ld_sb );
-			ldap_close_connection( &ld->ld_sb );
-		}
-#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
-	} else {
-		int	i;
 
-		for ( i = 0; i < ld->ld_sb.sb_naddr; ++i ) {
-			free( ld->ld_sb.sb_addrs[ i ] );
+		if ( ld->ld_matched != NULL ) {
+			LDAP_FREE( ld->ld_matched );
+			ld->ld_matched = NULL;
 		}
-		free( ld->ld_sb.sb_addrs );
-		free( ld->ld_sb.sb_fromaddr );
+		if ( ld->ld_referrals != NULL) {
+			LDAP_VFREE(ld->ld_referrals);
+			ld->ld_referrals = NULL;
+		}  
+		LDAP_MUTEX_UNLOCK( &ld->ld_ldcmutex );
+		LDAP_FREE( (char *) ld );
+		return( err );
+	}
+
+	/* This ld is the last thread. */
+
+	/* free LDAP structure and outstanding requests/responses */
+	LDAP_MUTEX_LOCK( &ld->ld_req_mutex );
+	while ( ld->ld_requests != NULL ) {
+		ldap_free_request( ld, ld->ld_requests );
 	}
+	LDAP_MUTEX_UNLOCK( &ld->ld_req_mutex );
+	LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
 
+	/* free and unbind from all open connections */
+	while ( ld->ld_conns != NULL ) {
+		ldap_free_connection( ld, ld->ld_conns, 1, close );
+	}
+	LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
+	LDAP_MUTEX_LOCK( &ld->ld_res_mutex );
 	for ( lm = ld->ld_responses; lm != NULL; lm = next ) {
 		next = lm->lm_next;
 		ldap_msgfree( lm );
 	}
+    
+	if ( ld->ld_abandoned != NULL ) {
+		LDAP_FREE( ld->ld_abandoned );
+		ld->ld_abandoned = NULL;
+	}
+	LDAP_MUTEX_UNLOCK( &ld->ld_res_mutex );
+	LDAP_MUTEX_LOCK( &ld->ld_ldopts_mutex );
+
+	/* final close callbacks */
+	{
+		ldaplist *ll, *next;
+
+		for ( ll = ld->ld_options.ldo_conn_cbs; ll; ll = next ) {
+			ldap_conncb *cb = ll->ll_data;
+			next = ll->ll_next;
+			cb->lc_del( ld, NULL, cb );
+			LDAP_FREE( ll );
+		}
+	}
+
+	if ( ld->ld_error != NULL ) {
+		LDAP_FREE( ld->ld_error );
+		ld->ld_error = NULL;
+	}
+
+	if ( ld->ld_matched != NULL ) {
+		LDAP_FREE( ld->ld_matched );
+		ld->ld_matched = NULL;
+	}
 
-#ifndef LDAP_NOCACHE
-	if ( ld->ld_cache != NULL )
-		ldap_destroy_cache( ld );
-#endif /* !LDAP_NOCACHE */
-	if ( ld->ld_error != NULL )
-		free( ld->ld_error );
-	if ( ld->ld_matched != NULL )
-		free( ld->ld_matched );
-	if ( ld->ld_host != NULL )
-		free( ld->ld_host );
-	if ( ld->ld_ufnprefix != NULL )
-		free( ld->ld_ufnprefix );
-	if ( ld->ld_filtd != NULL )
-		ldap_getfilter_free( ld->ld_filtd );
-#ifndef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
-	if ( ld->ld_sb.sb_ber.ber_buf != NULL )
-		free( ld->ld_sb.sb_ber.ber_buf );
-#endif /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
-	if ( ld->ld_abandoned != NULL )
-		free( ld->ld_abandoned );
-
-#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
-	if ( ld->ld_selectinfo != NULL )
+	if ( ld->ld_referrals != NULL) {
+		LDAP_VFREE(ld->ld_referrals);
+		ld->ld_referrals = NULL;
+	}  
+    
+	if ( ld->ld_selectinfo != NULL ) {
 		ldap_free_select_info( ld->ld_selectinfo );
-#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
+		ld->ld_selectinfo = NULL;
+	}
+
+	if ( ld->ld_options.ldo_defludp != NULL ) {
+		ldap_free_urllist( ld->ld_options.ldo_defludp );
+		ld->ld_options.ldo_defludp = NULL;
+	}
+
+#ifdef LDAP_CONNECTIONLESS
+	if ( ld->ld_options.ldo_peer != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_peer );
+		ld->ld_options.ldo_peer = NULL;
+	}
+
+	if ( ld->ld_options.ldo_cldapdn != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_cldapdn );
+		ld->ld_options.ldo_cldapdn = NULL;
+	}
+#endif
+
+#ifdef HAVE_CYRUS_SASL
+	if ( ld->ld_options.ldo_def_sasl_mech != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_mech );
+		ld->ld_options.ldo_def_sasl_mech = NULL;
+	}
+
+	if ( ld->ld_options.ldo_def_sasl_realm != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_realm );
+		ld->ld_options.ldo_def_sasl_realm = NULL;
+	}
+
+	if ( ld->ld_options.ldo_def_sasl_authcid != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid );
+		ld->ld_options.ldo_def_sasl_authcid = NULL;
+	}
 
-	if ( ld->ld_options.ldo_defbase != NULL )
-		free( ld->ld_options.ldo_defbase );
+	if ( ld->ld_options.ldo_def_sasl_authzid != NULL ) {
+		LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid );
+		ld->ld_options.ldo_def_sasl_authzid = NULL;
+	}
+#endif
 
-	if ( ld->ld_options.ldo_defhost != NULL )
-		free( ld->ld_options.ldo_defhost );
+#ifdef HAVE_TLS
+	ldap_int_tls_destroy( &ld->ld_options );
+#endif
 
-	free( (char *) ld );
+	if ( ld->ld_options.ldo_sctrls != NULL ) {
+		ldap_controls_free( ld->ld_options.ldo_sctrls );
+		ld->ld_options.ldo_sctrls = NULL;
+	}
 
-	WSACleanup();
+	if ( ld->ld_options.ldo_cctrls != NULL ) {
+		ldap_controls_free( ld->ld_options.ldo_cctrls );
+		ld->ld_options.ldo_cctrls = NULL;
+	}
+	LDAP_MUTEX_UNLOCK( &ld->ld_ldopts_mutex );
 
+	ber_sockbuf_free( ld->ld_sb );   
+   
+#ifdef LDAP_R_COMPILE
+	ldap_pvt_thread_mutex_destroy( &ld->ld_msgid_mutex );
+	ldap_pvt_thread_mutex_destroy( &ld->ld_conn_mutex );
+	ldap_pvt_thread_mutex_destroy( &ld->ld_req_mutex );
+	ldap_pvt_thread_mutex_destroy( &ld->ld_res_mutex );
+	ldap_pvt_thread_mutex_destroy( &ld->ld_abandon_mutex );
+	ldap_pvt_thread_mutex_destroy( &ld->ld_ldopts_mutex );
+	ldap_pvt_thread_mutex_unlock( &ld->ld_ldcmutex );
+	ldap_pvt_thread_mutex_destroy( &ld->ld_ldcmutex );
+#endif
+#ifndef NDEBUG
+	LDAP_TRASH(ld);
+#endif
+	LDAP_FREE( (char *) ld->ldc );
+	LDAP_FREE( (char *) ld );
+   
 	return( err );
 }
 
 int
-ldap_unbind_s( LDAP *ld )
+ldap_destroy( LDAP *ld )
 {
-	return( ldap_ld_free( ld, 1 ));
+	return ( ldap_ld_free( ld, 1, NULL, NULL ) );
 }
 
+int
+ldap_unbind_s( LDAP *ld )
+{
+	return( ldap_unbind_ext( ld, NULL, NULL ) );
+}
 
+/* FIXME: this function is called only by ldap_free_connection(),
+ * which, most of the times, is called with ld_req_mutex locked */
 int
-ldap_send_unbind( LDAP *ld, Sockbuf *sb )
+ldap_send_unbind(
+	LDAP *ld,
+	Sockbuf *sb,
+	LDAPControl **sctrls,
+	LDAPControl **cctrls )
 {
 	BerElement	*ber;
+	ber_int_t	id;
 
 	Debug( LDAP_DEBUG_TRACE, "ldap_send_unbind\n", 0, 0, 0 );
 
+#ifdef LDAP_CONNECTIONLESS
+	if (LDAP_IS_UDP(ld))
+		return LDAP_SUCCESS;
+#endif
 	/* create a message to send */
-	if ( (ber = ldap_alloc_ber_with_options( ld )) == NULLBER ) {
+	if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
 		return( ld->ld_errno );
 	}
 
+	LDAP_NEXT_MSGID(ld, id);
+
 	/* fill it in */
-	if ( ber_printf( ber, "{itn}", ++ld->ld_msgid,
+	if ( ber_printf( ber, "{itn" /*}*/, id,
 	    LDAP_REQ_UNBIND ) == -1 ) {
 		ld->ld_errno = LDAP_ENCODING_ERROR;
 		ber_free( ber, 1 );
 		return( ld->ld_errno );
 	}
 
-	/* send the message */
-	if ( ber_flush( sb, ber, 1 ) == -1 ) {
-		ld->ld_errno = LDAP_SERVER_DOWN;
+	/* Put Server Controls */
+	if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) {
+		ber_free( ber, 1 );
+		return ld->ld_errno;
+	}
+
+	if ( ber_printf( ber, /*{*/ "N}", LDAP_REQ_UNBIND ) == -1 ) {
+		ld->ld_errno = LDAP_ENCODING_ERROR;
 		ber_free( ber, 1 );
 		return( ld->ld_errno );
 	}
 
-	return( LDAP_SUCCESS );
+	ld->ld_errno = LDAP_SUCCESS;
+	/* send the message */
+	if ( ber_flush2( sb, ber, LBER_FLUSH_FREE_ALWAYS ) == -1 ) {
+		ld->ld_errno = LDAP_SERVER_DOWN;
+	}
+
+	return( ld->ld_errno );
 }