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Annotation of sys/compat/linux/linux_ioctl.c, Revision 1.1.1.1

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: }