amr_linux.c revision 158267
1/*- 2 * Copyright (c) 2005 Paul Saab 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: head/sys/dev/amr/amr_linux.c 158267 2006-05-03 16:45:15Z ambrisko $"); 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/conf.h> 34#include <sys/kernel.h> 35#include <sys/module.h> 36#include <sys/file.h> 37#include <sys/proc.h> 38 39#if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */ 40#include <machine/../linux32/linux.h> 41#include <machine/../linux32/linux32_proto.h> 42#else 43#include <machine/../linux/linux.h> 44#include <machine/../linux/linux_proto.h> 45#endif 46#include <compat/linux/linux_ioctl.h> 47 48/* There are multiple ioctl number ranges that need to be handled */ 49#define AMR_LINUX_IOCTL_MIN 0x6d00 50#define AMR_LINUX_IOCTL_MAX 0x6d01 51 52static linux_ioctl_function_t amr_linux_ioctl; 53static struct linux_ioctl_handler amr_linux_handler = {amr_linux_ioctl, 54 AMR_LINUX_IOCTL_MIN, 55 AMR_LINUX_IOCTL_MAX}; 56 57SYSINIT (amr_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 58 linux_ioctl_register_handler, &amr_linux_handler); 59SYSUNINIT(amr_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 60 linux_ioctl_unregister_handler, &amr_linux_handler); 61 62static int 63amr_linux_modevent(module_t mod, int cmd, void *data) 64{ 65 return (0); 66} 67 68DEV_MODULE(amr_linux, amr_linux_modevent, NULL); 69MODULE_DEPEND(amr, linux, 1, 1, 1); 70 71static int 72amr_linux_ioctl(d_thread_t *p, struct linux_ioctl_args *args) 73{ 74 struct file *fp; 75 int error; 76 77 if ((error = fget(p, args->fd, &fp)) != 0) 78 return (error); 79 error = fo_ioctl(fp, args->cmd, (caddr_t)args->arg, p->td_ucred, p); 80 fdrop(fp, p); 81 return (error); 82} 83