/*-
 * Copyright (c) 2014 Roger Pau Monné <royger@FreeBSD.org>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef __XEN_ERROR_H__
#define __XEN_ERROR_H__

#include <contrib/xen/errno.h>

/* Translation table */
static int xen_errors[] =
{
        [XEN_EPERM]             = EPERM,
        [XEN_ENOENT]            = ENOENT,
        [XEN_ESRCH]             = ESRCH,
        [XEN_EIO]               = EIO,
        [XEN_ENXIO]             = ENXIO,
        [XEN_E2BIG]             = E2BIG,
        [XEN_ENOEXEC]           = ENOEXEC,
        [XEN_EBADF]             = EBADF,
        [XEN_ECHILD]            = ECHILD,
        [XEN_EAGAIN]            = EAGAIN,
        [XEN_ENOMEM]            = ENOMEM,
        [XEN_EACCES]            = EACCES,
        [XEN_EFAULT]            = EFAULT,
        [XEN_EBUSY]             = EBUSY,
        [XEN_EEXIST]            = EEXIST,
        [XEN_EXDEV]             = EXDEV,
        [XEN_ENODEV]            = ENODEV,
        [XEN_EINVAL]            = EINVAL,
        [XEN_ENFILE]            = ENFILE,
        [XEN_EMFILE]            = EMFILE,
        [XEN_ENOSPC]            = ENOSPC,
        [XEN_EMLINK]            = EMLINK,
        [XEN_EDOM]              = EDOM,
        [XEN_ERANGE]            = ERANGE,
        [XEN_EDEADLK]           = EDEADLK,
        [XEN_ENAMETOOLONG]      = ENAMETOOLONG,
        [XEN_ENOLCK]            = ENOLCK,
        [XEN_ENOSYS]            = ENOSYS,
        [XEN_ENODATA]           = ENOENT,
        [XEN_ETIME]             = ETIMEDOUT,
        [XEN_EBADMSG]           = EBADMSG,
        [XEN_EOVERFLOW]         = EOVERFLOW,
        [XEN_EILSEQ]            = EILSEQ,
        [XEN_ENOTSOCK]          = ENOTSOCK,
        [XEN_EOPNOTSUPP]        = EOPNOTSUPP,
        [XEN_EADDRINUSE]        = EADDRINUSE,
        [XEN_EADDRNOTAVAIL]     = EADDRNOTAVAIL,
        [XEN_ENOBUFS]           = ENOBUFS,
        [XEN_EISCONN]           = EISCONN,
        [XEN_ENOTCONN]          = ENOTCONN,
        [XEN_ETIMEDOUT]         = ETIMEDOUT,
};

static inline int
xen_translate_error(int error)
{
        int bsd_error;

        KASSERT((error < 0), ("Value is not a valid Xen error code"));

        if (-error >= nitems(xen_errors)) {
                /*
                 * We received an error value that cannot be translated,
                 * return EINVAL.
                 */
                return (EINVAL);
        }

        bsd_error = xen_errors[-error];
        KASSERT((bsd_error != 0), ("Unknown Xen error code"));

        return (bsd_error);
}

#endif /* !__XEN_ERROR_H__ */