1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 /* 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 69 static linux_ioctl_function_t ipmi_linux_ioctl; 70 static struct linux_ioctl_handler ipmi_linux_handler = {ipmi_linux_ioctl, 71 IPMI_LINUX_IOCTL_MIN, 72 IPMI_LINUX_IOCTL_MAX}; 73 74 SYSINIT (ipmi_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 75 linux_ioctl_register_handler, &ipmi_linux_handler); 76 SYSUNINIT(ipmi_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 77 linux_ioctl_unregister_handler, &ipmi_linux_handler); 78 79 static int 80 ipmi_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 86 DEV_MODULE(ipmi_linux, ipmi_linux_modevent, NULL); 87 MODULE_DEPEND(ipmi_linux, linux, 1, 1, 1); 88 89 static int 90 ipmi_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_one(&rights, CAP_IOCTL), 98 &fp); 99 if (error != 0) 100 return (error); 101 cmd = args->cmd; 102 103 switch(cmd) { 104 case L_IPMICTL_GET_MY_ADDRESS_CMD: 105 cmd = IPMICTL_GET_MY_ADDRESS_CMD; 106 break; 107 case L_IPMICTL_GET_MY_LUN_CMD: 108 cmd = IPMICTL_GET_MY_LUN_CMD; 109 break; 110 } 111 /* 112 * Pass the ioctl off to our standard handler. 113 */ 114 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td)); 115 fdrop(fp, td); 116 return (error); 117 } 118