FreeBSD/Linux Kernel Cross Reference
sys/compat/linux/linux_ioctl.c

     /*      $OpenBSD: linux_ioctl.c,v 1.10 2003/07/23 20:18:10 tedu Exp $   */
     /*      $NetBSD: linux_ioctl.c,v 1.14 1996/04/05 00:01:28 christos Exp $        */
     
     /*
      * 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 <sys/param.h>
    #include <sys/proc.h>
    #include <sys/systm.h>
    #include <sys/ioctl.h>
    #include <sys/mount.h>
    
    #include <sys/socket.h>
    #include <net/if.h>
    #include <sys/sockio.h>
    
    #include <sys/syscallargs.h>
    
    #include <compat/linux/linux_types.h>
    #include <compat/linux/linux_signal.h>
    #include <compat/linux/linux_syscallargs.h>
    #include <compat/linux/linux_ioctl.h>
    
    #include <compat/ossaudio/ossaudio.h>
    #define LINUX_TO_OSS(v) (v)     /* do nothing, same ioctl() encoding */
    
    /*
     * Most ioctl command are just converted to their OpenBSD 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 their and converting back the data afterwards.
     */
    int
    linux_sys_ioctl(p, v, retval)
            register struct proc *p;
            void *v;
            register_t *retval;
    {
            register struct linux_sys_ioctl_args /* {
                    syscallarg(int) fd;
                    syscallarg(u_long) com;
                    syscallarg(caddr_t) data;
            } */ *uap = v;
    
            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 't':
            case 'f':
            case 'T':       /* XXX MIDI sequencer uses 'T' as well */
                    return linux_ioctl_termios(p, uap, retval);
            case 'S':
                    return linux_ioctl_cdrom(p, uap, retval);
            case 'r':       /* VFAT ioctls; not yet support */
                    return (EINVAL);
            case 0x89:
                    return linux_ioctl_socket(p, uap, retval);
            case 0x03:
                    return linux_ioctl_hdio(p, uap, retval);
            case 0x02:
                    return linux_ioctl_fdio(p, uap, retval);
            case 0x12:
                    return linux_ioctl_blkio(p, uap, retval);
            default:
                    return linux_machdepioctl(p, uap, retval);
            }
   }

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