NetBSD/sys/compat/linux/linux_ioctl.c

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/* $NetBSD: linux_ioctl.c,v 1.18 1998/08/07 00:00:57 augustss Exp $ */
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/*
* Copyright (c) 1995 Frank van der Linden
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project
* by Frank van der Linden
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "sequencer.h"
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#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/conf.h>
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#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/file.h>
#include <sys/vnode.h>
#include <sys/filedesc.h>
#include <sys/socket.h>
#include <net/if.h>
#include <sys/sockio.h>
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#include <sys/syscallargs.h>
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#include <compat/linux/linux_types.h>
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#include <compat/linux/linux_signal.h>
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#include <compat/linux/linux_syscallargs.h>
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#include <compat/linux/linux_ioctl.h>
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#include <compat/ossaudio/ossaudio.h>
#define LINUX_TO_OSS(v) (v) /* do nothing, same ioctl() encoding */
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/*
* Most ioctl command are just converted to their NetBSD values,
* and passed on. The ones that take structure pointers and (flag)
* values need some massaging. This is done the usual way by
* allocating stackgap memory, letting the actual ioctl call do its
* work there and converting back the data afterwards.
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*/
int
linux_sys_ioctl(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct linux_sys_ioctl_args /* {
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syscallarg(int) fd;
syscallarg(u_long) com;
syscallarg(caddr_t) data;
} */ *uap = v;
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switch (LINUX_IOCGROUP(SCARG(uap, com))) {
case 'M':
return oss_ioctl_mixer(p, LINUX_TO_OSS(v), retval);
case 'Q':
return oss_ioctl_sequencer(p, LINUX_TO_OSS(v), retval);
case 'P':
return oss_ioctl_audio(p, LINUX_TO_OSS(v), retval);
case 'S':
return linux_ioctl_cdrom(p, uap, retval);
case 'T':
{
#if NSEQUENCER > 0
/*
* Both termios and the MIDI sequncer use 'T' to identify
* the ioctl, so we have to differntiate them in a different
* way. We do it by indexing in the cdevsw with the major
* device number and check if that is the sequencer entry.
*/
struct file *fp;
struct filedesc *fdp;
struct vnode *vp;
struct vattr va;
extern int sequencerioctl
__P((dev_t, u_long, caddr_t, int, struct proc *));
fdp = p->p_fd;
if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
return EBADF;
vp = (struct vnode *)fp->f_data;
if (vp->v_type == VCHR &&
VOP_GETATTR(vp, &va, p->p_ucred, p) == 0 &&
major(va.va_rdev) < nchrdev &&
cdevsw[major(va.va_rdev)].d_ioctl == &sequencerioctl)
return oss_ioctl_sequencer(p, (void*)LINUX_TO_OSS(uap),
retval);
else
#endif
return linux_ioctl_termios(p, uap, retval);
}
case 0x89:
return linux_ioctl_socket(p, uap, retval);
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default:
return linux_machdepioctl(p, uap, retval);
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}
}