1 /*-
2 * Copyright (c) 2002 Scott Long
3 * Copyright (c) 2002-2010 Adaptec, Inc.
4 * Copyright (c) 2010-2012 PMC-Sierra, Inc.
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 aac device driver
34 */
35
36 #include <sys/param.h>
37 #if __FreeBSD_version >= 900000
38 #include <sys/capsicum.h>
39 #endif
40 #include <sys/systm.h>
41 #include <sys/conf.h>
42 #include <sys/kernel.h>
43 #include <sys/module.h>
44 #include <sys/file.h>
45 #include <sys/proc.h>
46 #ifdef __amd64__
47 #include <machine/../linux32/linux.h>
48 #include <machine/../linux32/linux32_proto.h>
49 #else
50 #include <machine/../linux/linux.h>
51 #include <machine/../linux/linux_proto.h>
52 #endif
53 #include <compat/linux/linux_ioctl.h>
54
55 /* There are multiple ioctl number ranges that need to be handled */
56 #define AAC_LINUX_IOCTL_MIN 0x0000
57 #define AAC_LINUX_IOCTL_MAX 0x21ff
58
59 static linux_ioctl_function_t aacraid_linux_ioctl;
60 static struct linux_ioctl_handler aacraid_linux_handler = {aacraid_linux_ioctl,
61 AAC_LINUX_IOCTL_MIN,
62 AAC_LINUX_IOCTL_MAX};
63
64 SYSINIT (aacraid_linux_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
65 linux_ioctl_register_handler, &aacraid_linux_handler);
66 SYSUNINIT(aacraid_linux_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
67 linux_ioctl_unregister_handler, &aacraid_linux_handler);
68
69 static int
aacraid_linux_modevent(module_t mod,int type,void * data)70 aacraid_linux_modevent(module_t mod, int type, void *data)
71 {
72 /* Do we care about any specific load/unload actions? */
73 return (0);
74 }
75
76 DEV_MODULE(aacraid_linux, aacraid_linux_modevent, NULL);
77 MODULE_DEPEND(aacraid_linux, linux, 1, 1, 1);
78
79 static int
aacraid_linux_ioctl(struct thread * td,struct linux_ioctl_args * args)80 aacraid_linux_ioctl(struct thread *td, struct linux_ioctl_args *args)
81 {
82 struct file *fp;
83 #if __FreeBSD_version >= 900000
84 cap_rights_t rights;
85 #endif
86 u_long cmd;
87 int error;
88
89 if ((error = fget(td, args->fd,
90 #if __FreeBSD_version >= 900000
91 cap_rights_init(&rights, CAP_IOCTL),
92 #endif
93 &fp)) != 0) {
94 return (error);
95 }
96 cmd = args->cmd;
97
98 /*
99 * Pass the ioctl off to our standard handler.
100 */
101 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td->td_ucred, td));
102 fdrop(fp, td);
103 return (error);
104 }
105