/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
 */

/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 *
 * MODULE: dapl_cr_reject.c
 *
 * PURPOSE: Connection management
 * Description: Interfaces in this file are completely described in
 *              the DAPL 1.1 API, Chapter 6, section 4
 *
 * $Id: dapl_cr_reject.c,v 1.10 2003/08/18 12:00:25 sjs2 Exp $
 */

#include "dapl.h"
#include "dapl_cr_util.h"
#include "dapl_sp_util.h"
#include "dapl_adapter_util.h"

/*
 * dapl_cr_reject
 *
 * DAPL Requirements Version xxx, 6.4.2.2
 *
 * Reject a connection request from the active remote side requesting
 * an Endpoint.
 *
 * Input:
 *      cr_handle
 *
 * Output:
 *      none
 *
 * Returns:
 *      DAT_SUCCESS
 *      DAT_INVALID_PARAMETER
 */

DAT_RETURN
dapl_cr_reject(
        IN DAT_CR_HANDLE cr_handle)
{
        DAPL_CR *cr_ptr;
        DAPL_EP *ep_ptr;
        DAT_EP_STATE entry_ep_state;
        DAT_EP_HANDLE entry_ep_handle;
        DAPL_SP *sp_ptr;
        DAT_RETURN dat_status;

        dapl_dbg_log(DAPL_DBG_TYPE_API, "dapl_cr_reject (%p)\n", cr_handle);

        if (DAPL_BAD_HANDLE(cr_handle, DAPL_MAGIC_CR)) {
                dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
                    DAT_INVALID_HANDLE_CR);
                goto bail;
        }

        cr_ptr = (DAPL_CR *)cr_handle;

        /*
         * Clean up provider created EP if there is one: only if
         * DAT_PSP_PROVIDER_FLAG was set on the PSP
         */
        ep_ptr = (DAPL_EP *)cr_ptr->param.local_ep_handle;
        entry_ep_handle = cr_ptr->param.local_ep_handle;
        entry_ep_state  = 0;
        if (ep_ptr != NULL) {
                entry_ep_state = ep_ptr->param.ep_state;
                ep_ptr->param.ep_state = DAT_EP_STATE_UNCONNECTED;
                cr_ptr->param.local_ep_handle = NULL;
        }

        dat_status =  dapls_ib_reject_connection(cr_ptr->ib_cm_handle,
            IB_CM_REJ_REASON_CONSUMER_REJ, cr_ptr->sp_ptr);

        if (dat_status != DAT_SUCCESS) {
                if (ep_ptr != NULL) {
                        /* Revert our state to the beginning */
                        ep_ptr->param.ep_state = entry_ep_state;
                        cr_ptr->param.local_ep_handle = entry_ep_handle;
                        cr_ptr->param.local_ep_handle = (DAT_EP_HANDLE)ep_ptr;
                }
        } else {
                /*
                 * If this EP has been allocated by the provider, clean it up;
                 * see DAT 1.1 spec, page 100, lines 3-4 (section 6.4.3.1.1.1).
                 * RSP and user-provided EPs are in the control of the user.
                 */
                sp_ptr = cr_ptr->sp_ptr;
                if (ep_ptr != NULL &&
                    sp_ptr->psp_flags == DAT_PSP_PROVIDER_FLAG) {
                        (void) dapl_ep_free(ep_ptr);
                }
                /* Remove the CR from the queue, then free it */
                dapl_sp_remove_cr(cr_ptr->sp_ptr, cr_ptr);
                dapls_cr_free(cr_ptr);
        }

bail:
        return (dat_status);
}