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 LINUX_IOCTL_SET(ipmi, IPMI_LINUX_IOCTL_MIN, IPMI_LINUX_IOCTL_MAX);
70
71 static int
ipmi_linux_modevent(module_t mod,int type,void * data)72 ipmi_linux_modevent(module_t mod, int type, void *data)
73 {
74 /* Do we care about any specific load/unload actions? */
75 return (0);
76 }
77
78 DEV_MODULE(ipmi_linux, ipmi_linux_modevent, NULL);
79 MODULE_DEPEND(ipmi_linux, linux, 1, 1, 1);
80
81 static int
ipmi_linux_ioctl(struct thread * td,struct linux_ioctl_args * args)82 ipmi_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
83 {
84 cap_rights_t rights;
85 struct file *fp;
86 u_long cmd;
87 int error;
88
89 error = fget(td, args->fd, cap_rights_init_one(&rights, CAP_IOCTL),
90 &fp);
91 if (error != 0)
92 return (error);
93 cmd = args->cmd;
94
95 switch(cmd) {
96 case L_IPMICTL_GET_MY_ADDRESS_CMD:
97 cmd = IPMICTL_GET_MY_ADDRESS_CMD;
98 break;
99 case L_IPMICTL_GET_MY_LUN_CMD:
100 cmd = IPMICTL_GET_MY_LUN_CMD;
101 break;
102 }
103 /*
104 * Pass the ioctl off to our standard handler.
105 */
106 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td));
107 fdrop(fp, td);
108 return (error);
109 }
110