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Annotation of sys/compat/linux/linux_ioctl.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: linux_ioctl.c,v 1.10 2003/07/23 20:18:10 tedu Exp $   */
        !             2: /*     $NetBSD: linux_ioctl.c,v 1.14 1996/04/05 00:01:28 christos Exp $        */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1995 Frank van der Linden
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *      This product includes software developed for the NetBSD Project
        !            19:  *      by Frank van der Linden
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: #include <sys/param.h>
        !            36: #include <sys/proc.h>
        !            37: #include <sys/systm.h>
        !            38: #include <sys/ioctl.h>
        !            39: #include <sys/mount.h>
        !            40:
        !            41: #include <sys/socket.h>
        !            42: #include <net/if.h>
        !            43: #include <sys/sockio.h>
        !            44:
        !            45: #include <sys/syscallargs.h>
        !            46:
        !            47: #include <compat/linux/linux_types.h>
        !            48: #include <compat/linux/linux_signal.h>
        !            49: #include <compat/linux/linux_syscallargs.h>
        !            50: #include <compat/linux/linux_ioctl.h>
        !            51:
        !            52: #include <compat/ossaudio/ossaudio.h>
        !            53: #define LINUX_TO_OSS(v) (v)    /* do nothing, same ioctl() encoding */
        !            54:
        !            55: /*
        !            56:  * Most ioctl command are just converted to their OpenBSD values,
        !            57:  * and passed on. The ones that take structure pointers and (flag)
        !            58:  * values need some massaging. This is done the usual way by
        !            59:  * allocating stackgap memory, letting the actual ioctl call do its
        !            60:  * work their and converting back the data afterwards.
        !            61:  */
        !            62: int
        !            63: linux_sys_ioctl(p, v, retval)
        !            64:        register struct proc *p;
        !            65:        void *v;
        !            66:        register_t *retval;
        !            67: {
        !            68:        register struct linux_sys_ioctl_args /* {
        !            69:                syscallarg(int) fd;
        !            70:                syscallarg(u_long) com;
        !            71:                syscallarg(caddr_t) data;
        !            72:        } */ *uap = v;
        !            73:
        !            74:        switch (LINUX_IOCGROUP(SCARG(uap, com))) {
        !            75:        case 'M':
        !            76:                return oss_ioctl_mixer(p, LINUX_TO_OSS(v), retval);
        !            77:        case 'Q':
        !            78:                return oss_ioctl_sequencer(p, LINUX_TO_OSS(v), retval);
        !            79:        case 'P':
        !            80:                return oss_ioctl_audio(p, LINUX_TO_OSS(v), retval);
        !            81:        case 't':
        !            82:        case 'f':
        !            83:        case 'T':       /* XXX MIDI sequencer uses 'T' as well */
        !            84:                return linux_ioctl_termios(p, uap, retval);
        !            85:        case 'S':
        !            86:                return linux_ioctl_cdrom(p, uap, retval);
        !            87:        case 'r':       /* VFAT ioctls; not yet support */
        !            88:                return (EINVAL);
        !            89:        case 0x89:
        !            90:                return linux_ioctl_socket(p, uap, retval);
        !            91:        case 0x03:
        !            92:                return linux_ioctl_hdio(p, uap, retval);
        !            93:        case 0x02:
        !            94:                return linux_ioctl_fdio(p, uap, retval);
        !            95:        case 0x12:
        !            96:                return linux_ioctl_blkio(p, uap, retval);
        !            97:        default:
        !            98:                return linux_machdepioctl(p, uap, retval);
        !            99:        }
        !           100: }