/*
 * GPL HEADER START
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 only,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License version 2 for more details (a copy is included
 * in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this program; If not, see
 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 * GPL HEADER END
 */
/*
 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
 * Use is subject to license terms.
 *
 * Copyright (c) 2012, Intel Corporation.
 */
/*
 * This file is part of Lustre, http://www.lustre.org/
 * Lustre is a trademark of Sun Microsystems, Inc.
 *
 * libcfs/include/libcfs/linux/linux-tcpip.h
 *
 * Basic library routines.
 */

#ifndef __LIBCFS_LINUX_CFS_TCP_H__
#define __LIBCFS_LINUX_CFS_TCP_H__

#ifndef __LIBCFS_LIBCFS_H__
#error Do not #include this file directly. #include <libcfs/libcfs.h> instead
#endif

#ifndef __KERNEL__
#error This include is only for kernel use.
#endif

#include <net/sock.h>

#ifndef HIPQUAD
// XXX Should just kill all users
#if defined(__LITTLE_ENDIAN)
#define HIPQUAD(addr) \
        ((unsigned char *)&addr)[3], \
        ((unsigned char *)&addr)[2], \
        ((unsigned char *)&addr)[1], \
        ((unsigned char *)&addr)[0]
#elif defined(__BIG_ENDIAN)
#define HIPQUAD NIPQUAD
#else
#error "Please fix asm/byteorder.h"
#endif /* __LITTLE_ENDIAN */
#endif

typedef struct socket   cfs_socket_t;

#define SOCK_SNDBUF(so)         ((so)->sk->sk_sndbuf)
#define SOCK_TEST_NOSPACE(so)   test_bit(SOCK_NOSPACE, &(so)->flags)

static inline int
libcfs_sock_error(struct socket *sock)
{
        return sock->sk->sk_err;
}

static inline int
libcfs_sock_wmem_queued(struct socket *sock)
{
        return sock->sk->sk_wmem_queued;
}

#ifndef HAVE_SK_SLEEP
static inline wait_queue_head_t *cfs_sk_sleep(struct sock *sk)
{
        return sk->sk_sleep;
}
#else
#define cfs_sk_sleep(sk)	sk_sleep(sk)
#endif
#endif