xref: /freebsd/sys/dev/ipmi/ipmi_linux.c (revision 6b3a9a0f3d2cd66145e89fdd8d07cb33a9963e8f)
1d2b2128aSDoug Ambrisko /*-
2718cf2ccSPedro F. Giffuni  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3718cf2ccSPedro F. Giffuni  *
4d2b2128aSDoug Ambrisko  * Copyright (c) 2009 IronPort Systems Inc. <ambrisko@ironport.com>
5d2b2128aSDoug Ambrisko  * All rights reserved.
6d2b2128aSDoug Ambrisko  *
7d2b2128aSDoug Ambrisko  * Redistribution and use in source and binary forms, with or without
8d2b2128aSDoug Ambrisko  * modification, are permitted provided that the following conditions
9d2b2128aSDoug Ambrisko  * are met:
10d2b2128aSDoug Ambrisko  * 1. Redistributions of source code must retain the above copyright
11d2b2128aSDoug Ambrisko  *    notice, this list of conditions and the following disclaimer.
12d2b2128aSDoug Ambrisko  * 2. Redistributions in binary form must reproduce the above copyright
13d2b2128aSDoug Ambrisko  *    notice, this list of conditions and the following disclaimer in the
14d2b2128aSDoug Ambrisko  *    documentation and/or other materials provided with the distribution.
15d2b2128aSDoug Ambrisko  *
16d2b2128aSDoug Ambrisko  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17d2b2128aSDoug Ambrisko  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18d2b2128aSDoug Ambrisko  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19d2b2128aSDoug Ambrisko  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20d2b2128aSDoug Ambrisko  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21d2b2128aSDoug Ambrisko  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22d2b2128aSDoug Ambrisko  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23d2b2128aSDoug Ambrisko  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24d2b2128aSDoug Ambrisko  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25d2b2128aSDoug Ambrisko  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26d2b2128aSDoug Ambrisko  * SUCH DAMAGE.
27d2b2128aSDoug Ambrisko  */
28d2b2128aSDoug Ambrisko 
29d2b2128aSDoug Ambrisko #include <sys/cdefs.h>
30d2b2128aSDoug Ambrisko __FBSDID("$FreeBSD$");
31d2b2128aSDoug Ambrisko 
32d2b2128aSDoug Ambrisko /*
33d2b2128aSDoug Ambrisko  * Linux ioctl handler for the ipmi device driver
34d2b2128aSDoug Ambrisko  */
35d2b2128aSDoug Ambrisko 
36d2b2128aSDoug Ambrisko #include <sys/param.h>
37d2b2128aSDoug Ambrisko #include <sys/systm.h>
384a144410SRobert Watson #include <sys/capsicum.h>
39d2b2128aSDoug Ambrisko #include <sys/conf.h>
40d2b2128aSDoug Ambrisko #include <sys/kernel.h>
41d2b2128aSDoug Ambrisko #include <sys/module.h>
42d2b2128aSDoug Ambrisko #include <sys/file.h>
43d2b2128aSDoug Ambrisko #include <sys/proc.h>
44d2b2128aSDoug Ambrisko #ifdef __amd64__
45d2b2128aSDoug Ambrisko #include <machine/../linux32/linux.h>
46d2b2128aSDoug Ambrisko #include <machine/../linux32/linux32_proto.h>
47d2b2128aSDoug Ambrisko #else
48d2b2128aSDoug Ambrisko #include <machine/../linux/linux.h>
49d2b2128aSDoug Ambrisko #include <machine/../linux/linux_proto.h>
50d2b2128aSDoug Ambrisko #endif
51d2b2128aSDoug Ambrisko #include <compat/linux/linux_ioctl.h>
52d2b2128aSDoug Ambrisko #include <sys/ioccom.h>
53d2b2128aSDoug Ambrisko #include <sys/ipmi.h>
54d2b2128aSDoug Ambrisko 
55d2b2128aSDoug Ambrisko /* There are multiple ioctl number ranges that need to be handled */
56d2b2128aSDoug Ambrisko #define IPMI_LINUX_IOCTL_MIN  0x690b
57d2b2128aSDoug Ambrisko #define IPMI_LINUX_IOCTL_MAX  0x6915
58d2b2128aSDoug Ambrisko 
59d2b2128aSDoug Ambrisko /* Linux versions of ioctl's */
60d2b2128aSDoug Ambrisko #define L_IPMICTL_RECEIVE_MSG_TRUNC       _IOWR(IPMI_IOC_MAGIC, 11, struct ipmi_recv)
61d2b2128aSDoug Ambrisko #define L_IPMICTL_RECEIVE_MSG             _IOWR(IPMI_IOC_MAGIC, 12, struct ipmi_recv)
62d2b2128aSDoug Ambrisko #define L_IPMICTL_SEND_COMMAND            _IOW(IPMI_IOC_MAGIC, 13, struct ipmi_req)
63d2b2128aSDoug Ambrisko #define L_IPMICTL_REGISTER_FOR_CMD        _IOW(IPMI_IOC_MAGIC, 14, struct ipmi_cmdspec)
64d2b2128aSDoug Ambrisko #define L_IPMICTL_UNREGISTER_FOR_CMD      _IOW(IPMI_IOC_MAGIC, 15, struct ipmi_cmdspec)
65d2b2128aSDoug Ambrisko #define L_IPMICTL_SET_GETS_EVENTS_CMD     _IOW(IPMI_IOC_MAGIC, 16, int)
66d2b2128aSDoug Ambrisko #define L_IPMICTL_SET_MY_ADDRESS_CMD      _IOW(IPMI_IOC_MAGIC, 17, unsigned int)
67d2b2128aSDoug Ambrisko #define L_IPMICTL_GET_MY_ADDRESS_CMD      _IOW(IPMI_IOC_MAGIC, 18, unsigned int)
68d2b2128aSDoug Ambrisko #define L_IPMICTL_SET_MY_LUN_CMD          _IOW(IPMI_IOC_MAGIC, 19, unsigned int)
69d2b2128aSDoug Ambrisko #define L_IPMICTL_GET_MY_LUN_CMD          _IOW(IPMI_IOC_MAGIC, 20, unsigned int)
70d2b2128aSDoug Ambrisko 
71d2b2128aSDoug Ambrisko static linux_ioctl_function_t ipmi_linux_ioctl;
72d2b2128aSDoug Ambrisko static struct linux_ioctl_handler ipmi_linux_handler = {ipmi_linux_ioctl,
73d2b2128aSDoug Ambrisko 						       IPMI_LINUX_IOCTL_MIN,
74d2b2128aSDoug Ambrisko 						       IPMI_LINUX_IOCTL_MAX};
75d2b2128aSDoug Ambrisko 
76d2b2128aSDoug Ambrisko SYSINIT  (ipmi_linux_register,   SI_SUB_KLD, SI_ORDER_MIDDLE,
77d2b2128aSDoug Ambrisko 	  linux_ioctl_register_handler, &ipmi_linux_handler);
78d2b2128aSDoug Ambrisko SYSUNINIT(ipmi_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
79d2b2128aSDoug Ambrisko 	  linux_ioctl_unregister_handler, &ipmi_linux_handler);
80d2b2128aSDoug Ambrisko 
81d2b2128aSDoug Ambrisko static int
82d2b2128aSDoug Ambrisko ipmi_linux_modevent(module_t mod, int type, void *data)
83d2b2128aSDoug Ambrisko {
84d2b2128aSDoug Ambrisko 	/* Do we care about any specific load/unload actions? */
85d2b2128aSDoug Ambrisko 	return (0);
86d2b2128aSDoug Ambrisko }
87d2b2128aSDoug Ambrisko 
88d2b2128aSDoug Ambrisko DEV_MODULE(ipmi_linux, ipmi_linux_modevent, NULL);
89d2b2128aSDoug Ambrisko MODULE_DEPEND(ipmi_linux, linux, 1, 1, 1);
90d2b2128aSDoug Ambrisko 
91d2b2128aSDoug Ambrisko static int
92d2b2128aSDoug Ambrisko ipmi_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
93d2b2128aSDoug Ambrisko {
947008be5bSPawel Jakub Dawidek 	cap_rights_t rights;
95d2b2128aSDoug Ambrisko 	struct file *fp;
96d2b2128aSDoug Ambrisko 	u_long cmd;
97d2b2128aSDoug Ambrisko 	int error;
98d2b2128aSDoug Ambrisko 
99*6b3a9a0fSMateusz Guzik 	error = fget(td, args->fd, cap_rights_init_one(&rights, CAP_IOCTL),
100*6b3a9a0fSMateusz Guzik 	    &fp);
1017008be5bSPawel Jakub Dawidek 	if (error != 0)
102d2b2128aSDoug Ambrisko 		return (error);
103d2b2128aSDoug Ambrisko 	cmd = args->cmd;
104d2b2128aSDoug Ambrisko 
105d2b2128aSDoug Ambrisko 	switch(cmd) {
106d2b2128aSDoug Ambrisko 	case L_IPMICTL_GET_MY_ADDRESS_CMD:
107d2b2128aSDoug Ambrisko 		cmd = IPMICTL_GET_MY_ADDRESS_CMD;
108d2b2128aSDoug Ambrisko 		break;
109d2b2128aSDoug Ambrisko 	case L_IPMICTL_GET_MY_LUN_CMD:
110d2b2128aSDoug Ambrisko 		cmd = IPMICTL_GET_MY_LUN_CMD;
111d2b2128aSDoug Ambrisko 		break;
112d2b2128aSDoug Ambrisko 	}
113d2b2128aSDoug Ambrisko 	/*
114d2b2128aSDoug Ambrisko 	 * Pass the ioctl off to our standard handler.
115d2b2128aSDoug Ambrisko 	 */
116d2b2128aSDoug Ambrisko 	error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td));
117d2b2128aSDoug Ambrisko 	fdrop(fp, td);
118d2b2128aSDoug Ambrisko 	return (error);
119d2b2128aSDoug Ambrisko }
120