130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/* $NetBSD: linux_mtio.c,v 1.8 2021/09/07 11:43:04 riastradh 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 1.8 2021/09/07 11:43:04 riastradh 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, const struct linux_sys_ioctl_args *uap,
|
|
register_t *retval)
|
|
{
|
|
file_t *fp;
|
|
u_long com = SCARG(uap, com);
|
|
int i, error = 0;
|
|
int (*ioctlf)(file_t *, u_long, void *);
|
|
struct linux_mtop lmtop;
|
|
struct linux_mtget lmtget;
|
|
struct mtop mt;
|
|
|
|
if ((fp = fd_getfile(SCARG(uap, fd))) == NULL)
|
|
return EBADF;
|
|
|
|
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, &mt);
|
|
break;
|
|
case LINUX_MTIOCGET:
|
|
memset(&lmtget, 0, sizeof(lmtget));
|
|
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;
|
|
}
|
|
|
|
fd_putfile(SCARG(uap, fd));
|
|
|
|
return error;
|
|
}
|