1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009 IronPort Systems Inc. <ambrisko@ironport.com> 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 /* 33 * Linux ioctl handler for the ipmi device driver 34 */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/capsicum.h> 39 #include <sys/conf.h> 40 #include <sys/kernel.h> 41 #include <sys/module.h> 42 #include <sys/file.h> 43 #include <sys/proc.h> 44 #ifdef __amd64__ 45 #include <machine/../linux32/linux.h> 46 #include <machine/../linux32/linux32_proto.h> 47 #else 48 #include <machine/../linux/linux.h> 49 #include <machine/../linux/linux_proto.h> 50 #endif 51 #include <compat/linux/linux_ioctl.h> 52 #include <sys/ioccom.h> 53 #include <sys/ipmi.h> 54 55 /* There are multiple ioctl number ranges that need to be handled */ 56 #define IPMI_LINUX_IOCTL_MIN 0x690b 57 #define IPMI_LINUX_IOCTL_MAX 0x6915 58 59 /* Linux versions of ioctl's */ 60 #define L_IPMICTL_RECEIVE_MSG_TRUNC _IOWR(IPMI_IOC_MAGIC, 11, struct ipmi_recv) 61 #define L_IPMICTL_RECEIVE_MSG _IOWR(IPMI_IOC_MAGIC, 12, struct ipmi_recv) 62 #define L_IPMICTL_SEND_COMMAND _IOW(IPMI_IOC_MAGIC, 13, struct ipmi_req) 63 #define L_IPMICTL_REGISTER_FOR_CMD _IOW(IPMI_IOC_MAGIC, 14, struct ipmi_cmdspec) 64 #define L_IPMICTL_UNREGISTER_FOR_CMD _IOW(IPMI_IOC_MAGIC, 15, struct ipmi_cmdspec) 65 #define L_IPMICTL_SET_GETS_EVENTS_CMD _IOW(IPMI_IOC_MAGIC, 16, int) 66 #define L_IPMICTL_SET_MY_ADDRESS_CMD _IOW(IPMI_IOC_MAGIC, 17, unsigned int) 67 #define L_IPMICTL_GET_MY_ADDRESS_CMD _IOW(IPMI_IOC_MAGIC, 18, unsigned int) 68 #define L_IPMICTL_SET_MY_LUN_CMD _IOW(IPMI_IOC_MAGIC, 19, unsigned int) 69 #define L_IPMICTL_GET_MY_LUN_CMD _IOW(IPMI_IOC_MAGIC, 20, unsigned int) 70 71 static linux_ioctl_function_t ipmi_linux_ioctl; 72 static struct linux_ioctl_handler ipmi_linux_handler = {ipmi_linux_ioctl, 73 IPMI_LINUX_IOCTL_MIN, 74 IPMI_LINUX_IOCTL_MAX}; 75 76 SYSINIT (ipmi_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 77 linux_ioctl_register_handler, &ipmi_linux_handler); 78 SYSUNINIT(ipmi_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 79 linux_ioctl_unregister_handler, &ipmi_linux_handler); 80 81 static int 82 ipmi_linux_modevent(module_t mod, int type, void *data) 83 { 84 /* Do we care about any specific load/unload actions? */ 85 return (0); 86 } 87 88 DEV_MODULE(ipmi_linux, ipmi_linux_modevent, NULL); 89 MODULE_DEPEND(ipmi_linux, linux, 1, 1, 1); 90 91 static int 92 ipmi_linux_ioctl(struct thread *td, struct linux_ioctl_args *args) 93 { 94 cap_rights_t rights; 95 struct file *fp; 96 u_long cmd; 97 int error; 98 99 error = fget(td, args->fd, cap_rights_init(&rights, CAP_IOCTL), &fp); 100 if (error != 0) 101 return (error); 102 cmd = args->cmd; 103 104 switch(cmd) { 105 case L_IPMICTL_GET_MY_ADDRESS_CMD: 106 cmd = IPMICTL_GET_MY_ADDRESS_CMD; 107 break; 108 case L_IPMICTL_GET_MY_LUN_CMD: 109 cmd = IPMICTL_GET_MY_LUN_CMD; 110 break; 111 } 112 /* 113 * Pass the ioctl off to our standard handler. 114 */ 115 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td)); 116 fdrop(fp, td); 117 return (error); 118 } 119