xref: /freebsd/sys/contrib/openzfs/module/os/freebsd/spl/spl_misc.c (revision bdd1243df58e60e85101c09001d9812a789b6bc4)
1 /*
2  * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/types.h>
31 #include <sys/param.h>
32 #include <sys/jail.h>
33 #include <sys/kernel.h>
34 #include <sys/libkern.h>
35 #include <sys/limits.h>
36 #include <sys/misc.h>
37 #include <sys/sysctl.h>
38 #include <sys/vnode.h>
39 
40 #include <sys/zfs_context.h>
41 
42 static struct opensolaris_utsname hw_utsname = {
43 	.machine = MACHINE
44 };
45 
46 utsname_t *
47 utsname(void)
48 {
49 	return (&hw_utsname);
50 }
51 
52 static void
53 opensolaris_utsname_init(void *arg)
54 {
55 
56 	hw_utsname.sysname = ostype;
57 	hw_utsname.nodename = prison0.pr_hostname;
58 	hw_utsname.release = osrelease;
59 	snprintf(hw_utsname.version, sizeof (hw_utsname.version),
60 	    "%d", osreldate);
61 }
62 
63 char *
64 kmem_strdup(const char *s)
65 {
66 	char *buf;
67 
68 	buf = kmem_alloc(strlen(s) + 1, KM_SLEEP);
69 	strcpy(buf, s);
70 	return (buf);
71 }
72 
73 int
74 ddi_copyin(const void *from, void *to, size_t len, int flags)
75 {
76 	/* Fake ioctl() issued by kernel, 'from' is a kernel address */
77 	if (flags & FKIOCTL) {
78 		memcpy(to, from, len);
79 		return (0);
80 	}
81 
82 	return (copyin(from, to, len));
83 }
84 
85 int
86 ddi_copyout(const void *from, void *to, size_t len, int flags)
87 {
88 	/* Fake ioctl() issued by kernel, 'from' is a kernel address */
89 	if (flags & FKIOCTL) {
90 		memcpy(to, from, len);
91 		return (0);
92 	}
93 
94 	return (copyout(from, to, len));
95 }
96 
97 void
98 spl_panic(const char *file, const char *func, int line, const char *fmt, ...)
99 {
100 	va_list ap;
101 
102 	va_start(ap, fmt);
103 	vpanic(fmt, ap);
104 	va_end(ap);
105 }
106 
107 
108 SYSINIT(opensolaris_utsname_init, SI_SUB_TUNABLES, SI_ORDER_ANY,
109     opensolaris_utsname_init, NULL);
110