1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2002 Scott Long 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30/* 31 * Linux ioctl handler for the aac device driver 32 */ 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/capsicum.h> 37#include <sys/conf.h> 38#include <sys/kernel.h> 39#include <sys/module.h> 40#include <sys/file.h> 41#include <sys/proc.h> 42#ifdef __amd64__ 43#include <machine/../linux32/linux.h> 44#include <machine/../linux32/linux32_proto.h> 45#else 46#include <machine/../linux/linux.h> 47#include <machine/../linux/linux_proto.h> 48#endif 49#include <compat/linux/linux_ioctl.h> 50 51/* There are multiple ioctl number ranges that need to be handled */ 52#define AAC_LINUX_IOCTL_MIN 0x0000 53#define AAC_LINUX_IOCTL_MAX 0x21ff 54 55static linux_ioctl_function_t aac_linux_ioctl; 56static struct linux_ioctl_handler aac_linux_handler = {aac_linux_ioctl, 57 AAC_LINUX_IOCTL_MIN, 58 AAC_LINUX_IOCTL_MAX}; 59 60SYSINIT (aac_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 61 linux_ioctl_register_handler, &aac_linux_handler); 62SYSUNINIT(aac_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 63 linux_ioctl_unregister_handler, &aac_linux_handler); 64 65static int 66aac_linux_modevent(module_t mod, int type, void *data) 67{ 68 /* Do we care about any specific load/unload actions? */ 69 return (0); 70} 71 72DEV_MODULE(aac_linux, aac_linux_modevent, NULL); 73MODULE_DEPEND(aac_linux, linux, 1, 1, 1); 74 75static int 76aac_linux_ioctl(struct thread *td, struct linux_ioctl_args *args) 77{ 78 cap_rights_t rights; 79 struct file *fp; 80 u_long cmd; 81 int error; 82 83 error = fget(td, args->fd, cap_rights_init_one(&rights, CAP_IOCTL), 84 &fp); 85 if (error != 0) 86 return (error); 87 cmd = args->cmd; 88 89 /* 90 * Pass the ioctl off to our standard handler. 91 */ 92 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td)); 93 fdrop(fp, td); 94 return (error); 95} 96