1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006 IronPort Systems 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 __FBSDID("$FreeBSD$"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/capsicum.h> 35 #include <sys/conf.h> 36 #include <sys/kernel.h> 37 #include <sys/module.h> 38 #include <sys/file.h> 39 #include <sys/proc.h> 40 #include <machine/bus.h> 41 42 #if defined(__amd64__) /* Assume amd64 wants 32 bit Linux */ 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 #include <compat/linux/linux_util.h> 51 52 #include <dev/mfi/mfireg.h> 53 #include <dev/mfi/mfi_ioctl.h> 54 55 /* There are multiple ioctl number ranges that need to be handled */ 56 #define MFI_LINUX_IOCTL_MIN 0x4d00 57 #define MFI_LINUX_IOCTL_MAX 0x4d04 58 59 static linux_ioctl_function_t mfi_linux_ioctl; 60 static struct linux_ioctl_handler mfi_linux_handler = {mfi_linux_ioctl, 61 MFI_LINUX_IOCTL_MIN, 62 MFI_LINUX_IOCTL_MAX}; 63 64 SYSINIT (mfi_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 65 linux_ioctl_register_handler, &mfi_linux_handler); 66 SYSUNINIT(mfi_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 67 linux_ioctl_unregister_handler, &mfi_linux_handler); 68 69 static struct linux_device_handler mfi_device_handler = 70 { "mfi", "megaraid_sas", "mfi0", "megaraid_sas_ioctl_node", -1, 0, 1}; 71 72 SYSINIT (mfi_register2, SI_SUB_KLD, SI_ORDER_MIDDLE, 73 linux_device_register_handler, &mfi_device_handler); 74 SYSUNINIT(mfi_unregister2, SI_SUB_KLD, SI_ORDER_MIDDLE, 75 linux_device_unregister_handler, &mfi_device_handler); 76 77 static int 78 mfi_linux_modevent(module_t mod, int cmd, void *data) 79 { 80 return (0); 81 } 82 83 DEV_MODULE(mfi_linux, mfi_linux_modevent, NULL); 84 MODULE_DEPEND(mfi, linux, 1, 1, 1); 85 86 static int 87 mfi_linux_ioctl(struct thread *p, struct linux_ioctl_args *args) 88 { 89 cap_rights_t rights; 90 struct file *fp; 91 int error; 92 u_long cmd = args->cmd; 93 94 switch (cmd) { 95 case MFI_LINUX_CMD: 96 cmd = MFI_LINUX_CMD_2; 97 break; 98 case MFI_LINUX_SET_AEN: 99 cmd = MFI_LINUX_SET_AEN_2; 100 break; 101 } 102 103 error = fget(p, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp); 104 if (error != 0) 105 return (error); 106 error = fo_ioctl(fp, cmd, (caddr_t)args->arg, p->td_ucred, p); 107 fdrop(fp, p); 108 return (error); 109 } 110