/*
 * 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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 * Copyright 2015, Joyent, Inc.
 */

#ifndef _INET_KSOCKET_KSOCKET_IMPL_H
#define _INET_KSOCKET_KSOCKET_IMPL_H

/*
 * Note that if this relationship ever changes, the logic in ksocket_krecv_set
 * must be updated and we must maintain local state about this on whatever the
 * new ksocket object is.
 */
#define KSTOSO(ks)      ((struct sonode *)(ks))
#define SOTOKS(so)      ((ksocket_t)(uintptr_t)(so))

#define IS_KERNEL_SOCKET(so)    ((so)->so_mode & SM_KERNEL)

#define KSOCKET_MOD_VERSION     "kernel socket module"

#define __KSOCKET_EV_connected          KSOCKET_EV_CONNECTED
#define __KSOCKET_EV_connectfailed      KSOCKET_EV_CONNECTFAILED
#define __KSOCKET_EV_disconnected       KSOCKET_EV_DISCONNECTED
#define __KSOCKET_EV_oobdata            KSOCKET_EV_OOBDATA
#define __KSOCKET_EV_newdata            KSOCKET_EV_NEWDATA
#define __KSOCKET_EV_newconn            KSOCKET_EV_NEWCONN
#define __KSOCKET_EV_cansend            KSOCKET_EV_CANSEND
#define __KSOCKET_EV_cantsendmore       KSOCKET_EV_CANTSENDMORE
#define __KSOCKET_EV_cantrecvmore       KSOCKET_EV_CANTRECVMORE
#define __KSOCKET_EV_error              KSOCKET_EV_ERROR

#define KSOCKET_CALLBACK(so, cbfn, arg)                                 \
        if ((so)->so_ksock_callbacks.ksock_cb_##cbfn != NULL) {         \
                (*(so)->so_ksock_callbacks.ksock_cb_##cbfn)(SOTOKS(so), \
                    __KSOCKET_EV_##cbfn, (so)->so_ksock_cb_arg, (arg)); \
        }

#define KSOCKET_FMODE(so)       FREAD|FWRITE|   \
        ((KSTOSO(so)->so_state & (SS_NDELAY|SS_NONBLOCK)) ? FNDELAY : 0)

#define KSOCKET_VALID(ks)       \
        ((ks) != NULL && (KSTOSO(ks))->so_mode & SM_KERNEL &&           \
            !((KSTOSO(ks))->so_state & SS_CLOSING))

#define SETCALLBACK(so, cb, cbfn, cbflg)                        \
        if ((cb)->ksock_cb_flags & (cbflg)) {                   \
                (so)->so_ksock_callbacks.ksock_cb_##cbfn        \
                    = (cb)->ksock_cb_##cbfn;                    \
                if ((cb)->ksock_cb_##cbfn == NULL)              \
                        (so)->so_ksock_callbacks.ksock_cb_flags \
                            &= ~(cbflg);                        \
                else                                            \
                        (so)->so_ksock_callbacks.ksock_cb_flags \
                            |= (cbflg);                         \
        }


#endif /* _INET_KSOCKET_KSOCKET_IMPL_H */