1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002 Scott Long 5 * Copyright (c) 2002-2010 Adaptec, Inc. 6 * Copyright (c) 2010-2012 PMC-Sierra, Inc. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 /* 35 * Linux ioctl handler for the aac device driver 36 */ 37 38 #include <sys/param.h> 39 #if __FreeBSD_version >= 900000 40 #include <sys/capsicum.h> 41 #endif 42 #include <sys/systm.h> 43 #include <sys/conf.h> 44 #include <sys/kernel.h> 45 #include <sys/module.h> 46 #include <sys/file.h> 47 #include <sys/proc.h> 48 #ifdef __amd64__ 49 #include <machine/../linux32/linux.h> 50 #include <machine/../linux32/linux32_proto.h> 51 #else 52 #include <machine/../linux/linux.h> 53 #include <machine/../linux/linux_proto.h> 54 #endif 55 #include <compat/linux/linux_ioctl.h> 56 57 /* There are multiple ioctl number ranges that need to be handled */ 58 #define AAC_LINUX_IOCTL_MIN 0x0000 59 #define AAC_LINUX_IOCTL_MAX 0x21ff 60 61 static linux_ioctl_function_t aacraid_linux_ioctl; 62 static struct linux_ioctl_handler aacraid_linux_handler = {aacraid_linux_ioctl, 63 AAC_LINUX_IOCTL_MIN, 64 AAC_LINUX_IOCTL_MAX}; 65 66 SYSINIT (aacraid_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 67 linux_ioctl_register_handler, &aacraid_linux_handler); 68 SYSUNINIT(aacraid_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 69 linux_ioctl_unregister_handler, &aacraid_linux_handler); 70 71 static int 72 aacraid_linux_modevent(module_t mod, int type, void *data) 73 { 74 /* Do we care about any specific load/unload actions? */ 75 return (0); 76 } 77 78 DEV_MODULE(aacraid_linux, aacraid_linux_modevent, NULL); 79 MODULE_DEPEND(aacraid_linux, linux, 1, 1, 1); 80 81 static int 82 aacraid_linux_ioctl(struct thread *td, struct linux_ioctl_args *args) 83 { 84 struct file *fp; 85 #if __FreeBSD_version >= 900000 86 cap_rights_t rights; 87 #endif 88 u_long cmd; 89 int error; 90 91 if ((error = fget(td, args->fd, 92 #if __FreeBSD_version >= 900000 93 cap_rights_init(&rights, CAP_IOCTL), 94 #endif 95 &fp)) != 0) { 96 return (error); 97 } 98 cmd = args->cmd; 99 100 /* 101 * Pass the ioctl off to our standard handler. 102 */ 103 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td)); 104 fdrop(fp, td); 105 return (error); 106 } 107