/* abandon.c - decode and handle an ldap abandon operation */
-
-/*
- * Copyright (c) 1995 Regents of the University of Michigan.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2013 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.
+ *
+ * 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) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
#include "slap.h"
-extern Backend *select_backend();
-
-extern char *default_referral;
-
-void
-do_abandon(
- Connection *conn,
- Operation *op
-)
+int
+do_abandon( Operation *op, SlapReply *rs )
{
- int id;
- Backend *be;
+ ber_int_t id;
Operation *o;
+ const char *msg;
- Debug( LDAP_DEBUG_TRACE, "do_abandon\n", 0, 0, 0 );
+ Debug( LDAP_DEBUG_TRACE, "%s do_abandon\n",
+ op->o_log_prefix, 0, 0 );
/*
* Parse the abandon request. It looks like this:
*/
if ( ber_scanf( op->o_ber, "i", &id ) == LBER_ERROR ) {
- Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0 ,0 );
- return;
+ Debug( LDAP_DEBUG_ANY, "%s do_abandon: ber_scanf failed\n",
+ op->o_log_prefix, 0, 0 );
+ send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
+ return SLAPD_DISCONNECT;
}
- Debug( LDAP_DEBUG_ARGS, "do_abandon: id %d\n", id, 0 ,0 );
+ Statslog( LDAP_DEBUG_STATS, "%s ABANDON msg=%ld\n",
+ op->o_log_prefix, (long) id, 0, 0, 0 );
- /*
- * find the operation being abandoned and set the o_abandon
- * flag. It's up to the backend to periodically check this
- * flag and abort the operation at a convenient time.
- */
+ if( get_ctrls( op, rs, 0 ) != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY, "%s do_abandon: get_ctrls failed\n",
+ op->o_log_prefix, 0, 0 );
+ return rs->sr_err;
+ }
+
+ Debug( LDAP_DEBUG_ARGS, "%s do_abandon: id=%ld\n",
+ op->o_log_prefix, (long) id, 0 );
+
+ if( id <= 0 ) {
+ Debug( LDAP_DEBUG_ANY, "%s do_abandon: bad msgid %ld\n",
+ op->o_log_prefix, (long) id, 0 );
+ return LDAP_SUCCESS;
+ }
- pthread_mutex_lock( &conn->c_opsmutex );
- for ( o = conn->c_ops; o != NULL; o = o->o_next ) {
- if ( o->o_msgid == id )
+ ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
+
+ /* Find the operation being abandoned. */
+ LDAP_STAILQ_FOREACH( o, &op->o_conn->c_ops, o_next ) {
+ if ( o->o_msgid == id ) {
break;
+ }
}
- if ( o != NULL ) {
- pthread_mutex_lock( &o->o_abandonmutex );
- o->o_abandon = 1;
- pthread_mutex_unlock( &o->o_abandonmutex );
+ if ( o == NULL ) {
+ msg = "not found";
+ /* The operation is not active. Just discard it if found. */
+ LDAP_STAILQ_FOREACH( o, &op->o_conn->c_pending_ops, o_next ) {
+ if ( o->o_msgid == id ) {
+ msg = "discarded";
+ /* FIXME: This traverses c_pending_ops yet again. */
+ LDAP_STAILQ_REMOVE( &op->o_conn->c_pending_ops,
+ o, Operation, o_next );
+ LDAP_STAILQ_NEXT(o, o_next) = NULL;
+ op->o_conn->c_n_ops_pending--;
+ slap_op_free( o, NULL );
+ break;
+ }
+ }
+
+ } else if ( o->o_tag == LDAP_REQ_BIND
+ || o->o_tag == LDAP_REQ_UNBIND
+ || o->o_tag == LDAP_REQ_ABANDON ) {
+ msg = "cannot be abandoned";
+
+#if 0 /* Would break o_abandon used as "suppress response" flag, ITS#6138 */
+ } else if ( o->o_abandon ) {
+ msg = "already being abandoned";
+#endif
+
} else {
- Debug( LDAP_DEBUG_TRACE, "do_abandon: op not found\n", 0, 0,
- 0 );
+ msg = "found";
+ /* Set the o_abandon flag in the to-be-abandoned operation.
+ * The backend can periodically check this flag and abort the
+ * operation at a convenient time. However it should "send"
+ * the response anyway, with result code SLAPD_ABANDON.
+ * The functions in result.c will intercept the message.
+ */
+ o->o_abandon = 1;
+ op->orn_msgid = id;
+ op->o_bd = frontendDB;
+ rs->sr_err = frontendDB->be_abandon( op, rs );
}
- pthread_mutex_unlock( &conn->c_opsmutex );
+
+ ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+
+ Debug( LDAP_DEBUG_TRACE, "%s do_abandon: op=%ld %s\n",
+ op->o_log_prefix, (long) id, msg );
+ return rs->sr_err;
+}
+
+int
+fe_op_abandon( Operation *op, SlapReply *rs )
+{
+ LDAP_STAILQ_FOREACH( op->o_bd, &backendDB, be_next ) {
+ if ( op->o_bd->be_abandon ) {
+ (void)op->o_bd->be_abandon( op, rs );
+ }
+ }
+
+ return LDAP_SUCCESS;
}
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