ipmi_linux.c revision 263233
1/*- 2 * Copyright (c) 2009 IronPort Systems Inc. <ambrisko@ironport.com> 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: head/sys/dev/ipmi/ipmi_linux.c 263233 2014-03-16 10:55:57Z rwatson $"); 29 30/* 31 * Linux ioctl handler for the ipmi 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#include <sys/ioccom.h> 51#include <sys/ipmi.h> 52 53/* There are multiple ioctl number ranges that need to be handled */ 54#define IPMI_LINUX_IOCTL_MIN 0x690b 55#define IPMI_LINUX_IOCTL_MAX 0x6915 56 57/* Linux versions of ioctl's */ 58#define L_IPMICTL_RECEIVE_MSG_TRUNC _IOWR(IPMI_IOC_MAGIC, 11, struct ipmi_recv) 59#define L_IPMICTL_RECEIVE_MSG _IOWR(IPMI_IOC_MAGIC, 12, struct ipmi_recv) 60#define L_IPMICTL_SEND_COMMAND _IOW(IPMI_IOC_MAGIC, 13, struct ipmi_req) 61#define L_IPMICTL_REGISTER_FOR_CMD _IOW(IPMI_IOC_MAGIC, 14, struct ipmi_cmdspec) 62#define L_IPMICTL_UNREGISTER_FOR_CMD _IOW(IPMI_IOC_MAGIC, 15, struct ipmi_cmdspec) 63#define L_IPMICTL_SET_GETS_EVENTS_CMD _IOW(IPMI_IOC_MAGIC, 16, int) 64#define L_IPMICTL_SET_MY_ADDRESS_CMD _IOW(IPMI_IOC_MAGIC, 17, unsigned int) 65#define L_IPMICTL_GET_MY_ADDRESS_CMD _IOW(IPMI_IOC_MAGIC, 18, unsigned int) 66#define L_IPMICTL_SET_MY_LUN_CMD _IOW(IPMI_IOC_MAGIC, 19, unsigned int) 67#define L_IPMICTL_GET_MY_LUN_CMD _IOW(IPMI_IOC_MAGIC, 20, unsigned int) 68 69static linux_ioctl_function_t ipmi_linux_ioctl; 70static struct linux_ioctl_handler ipmi_linux_handler = {ipmi_linux_ioctl, 71 IPMI_LINUX_IOCTL_MIN, 72 IPMI_LINUX_IOCTL_MAX}; 73 74SYSINIT (ipmi_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 75 linux_ioctl_register_handler, &ipmi_linux_handler); 76SYSUNINIT(ipmi_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 77 linux_ioctl_unregister_handler, &ipmi_linux_handler); 78 79static int 80ipmi_linux_modevent(module_t mod, int type, void *data) 81{ 82 /* Do we care about any specific load/unload actions? */ 83 return (0); 84} 85 86DEV_MODULE(ipmi_linux, ipmi_linux_modevent, NULL); 87MODULE_DEPEND(ipmi_linux, linux, 1, 1, 1); 88 89static int 90ipmi_linux_ioctl(struct thread *td, struct linux_ioctl_args *args) 91{ 92 cap_rights_t rights; 93 struct file *fp; 94 u_long cmd; 95 int error; 96 97 error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp); 98 if (error != 0) 99 return (error); 100 cmd = args->cmd; 101 102 switch(cmd) { 103 case L_IPMICTL_GET_MY_ADDRESS_CMD: 104 cmd = IPMICTL_GET_MY_ADDRESS_CMD; 105 break; 106 case L_IPMICTL_GET_MY_LUN_CMD: 107 cmd = IPMICTL_GET_MY_LUN_CMD; 108 break; 109 } 110 /* 111 * Pass the ioctl off to our standard handler. 112 */ 113 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td)); 114 fdrop(fp, td); 115 return (error); 116} 117