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/* $NetBSD: linux_mtio.c,v 1.5 2007/10/19 18:52:11 njoly Exp $ */
/*
* Copyright (c) 2005 Soren S. Jorvang. 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: linux_mtio.c,v 1.5 2007/10/19 18:52:11 njoly Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/mtio.h>
#include <sys/syscallargs.h>
#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_ioctl.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_mtio.h>
#include <compat/linux/common/linux_ipc.h>
#include <compat/linux/common/linux_sem.h>
#include <compat/linux/linux_syscallargs.h>
static const struct mtop_mapping {
short lop;
short op;
} mtop_map[] = {
{ LINUX_MTFSF, MTFSF },
{ LINUX_MTBSF, MTBSF },
{ LINUX_MTFSR, MTFSR },
{ LINUX_MTBSR, MTBSR },
{ LINUX_MTWEOF, MTWEOF },
{ LINUX_MTREW, MTREW },
{ LINUX_MTOFFL, MTOFFL },
{ LINUX_MTNOP, MTNOP },
{ LINUX_MTRETEN, MTRETEN },
{ LINUX_MTEOM, MTEOM },
{ LINUX_MTERASE, MTERASE },
{ LINUX_MTSETBLK, MTSETBSIZ },
{ LINUX_MTSETDENSITY, MTSETDNSTY },
{ LINUX_MTCOMPRESSION, MTCMPRESS },
{ -1, -1 }
};
int
linux_ioctl_mtio(struct lwp *l, struct linux_sys_ioctl_args *uap,
register_t *retval)
{
struct file *fp;
struct filedesc *fdp;
u_long com = SCARG(uap, com);
int i, error = 0;
int (*ioctlf)(struct file *, u_long, void *, struct lwp *);
struct linux_mtop lmtop;
struct linux_mtget lmtget;
struct mtop mt;
fdp = l->l_proc->p_fd;
if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
return EBADF;
FILE_USE(fp);
ioctlf = fp->f_ops->fo_ioctl;
*retval = 0;
switch (com) {
case LINUX_MTIOCTOP:
error = copyin(SCARG(uap, data), &lmtop, sizeof lmtop);
for (i = 0; mtop_map[i].lop >= 0; i++) {
if (mtop_map[i].lop == lmtop.mt_op)
break;
}
if (mtop_map[i].lop == -1) {
error = EINVAL;
break;
}
mt.mt_op = mtop_map[i].op;
mt.mt_count = lmtop.mt_count;
error = ioctlf(fp, MTIOCTOP, (void *)&mt, l);
break;
case LINUX_MTIOCGET:
lmtget.mt_type = LINUX_MT_ISUNKNOWN;
lmtget.mt_resid = 0;
lmtget.mt_dsreg = 0;
lmtget.mt_gstat = 0;
lmtget.mt_erreg = 0;
lmtget.mt_fileno = 0;
lmtget.mt_blkno = 0;
error = copyout(&lmtget, SCARG(uap, data), sizeof lmtget);
break;
case LINUX_MTIOCPOS:
default:
printf("linux_mtio unsupported ioctl 0x%lx\n", com);
error = ENODEV;
break;
}
FILE_UNUSE(fp, l);
return error;
}
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