1 /*- 2 * Copyright (c) 2002 Scott Long 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 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 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/conf.h> 37 #include <sys/kernel.h> 38 #include <sys/file.h> 39 #include <sys/proc.h> 40 #include <machine/../linux/linux.h> 41 #include <machine/../linux/linux_proto.h> 42 #include <compat/linux/linux_ioctl.h> 43 44 /* There are multiple ioctl number ranges that need to be handled */ 45 #define AAC_LINUX_IOCTL_MIN 0x0000 46 #define AAC_LINUX_IOCTL_MAX 0x21ff 47 48 static linux_ioctl_function_t aac_linux_ioctl; 49 static struct linux_ioctl_handler aac_linux_handler = {aac_linux_ioctl, 50 AAC_LINUX_IOCTL_MIN, 51 AAC_LINUX_IOCTL_MAX}; 52 53 SYSINIT (aac_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 54 linux_ioctl_register_handler, &aac_linux_handler); 55 SYSUNINIT(aac_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 56 linux_ioctl_unregister_handler, &aac_linux_handler); 57 58 static int 59 aac_linux_modevent(module_t mod, int type, void *data) 60 { 61 /* Do we care about any specific load/unload actions? */ 62 return (0); 63 } 64 65 DEV_MODULE(aac_linux, aac_linux_modevent, NULL); 66 MODULE_DEPEND(aac_linux, linux, 1, 1, 1); 67 68 static int 69 aac_linux_ioctl(struct thread *td, struct linux_ioctl_args *args) 70 { 71 struct file *fp; 72 u_long cmd; 73 int error; 74 75 if ((error = fget(td, args->fd, &fp)) != 0) 76 return (error); 77 cmd = args->cmd; 78 79 /* 80 * Pass the ioctl off to our standard handler. 81 */ 82 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td)); 83 fdrop(fp, td); 84 return (error); 85 } 86