1 // SPDX-License-Identifier: BSD-2-Clause
2 /*
3 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/types.h>
29 #include <sys/param.h>
30 #include <sys/jail.h>
31 #include <sys/kernel.h>
32 #include <sys/libkern.h>
33 #include <sys/limits.h>
34 #include <sys/misc.h>
35 #include <sys/sysctl.h>
36 #include <sys/vnode.h>
37
38 #include <sys/zfs_context.h>
39
40 static struct opensolaris_utsname hw_utsname = {
41 .sysname = ostype,
42 .nodename = prison0.pr_hostname,
43 .release = osrelease,
44 .machine = MACHINE
45 };
46
47 utsname_t *
utsname(void)48 utsname(void)
49 {
50 return (&hw_utsname);
51 }
52
53 static void
opensolaris_utsname_init(void * arg)54 opensolaris_utsname_init(void *arg)
55 {
56 snprintf(hw_utsname.version, sizeof (hw_utsname.version),
57 "%d", osreldate);
58 }
59
60 char *
kmem_strdup(const char * s)61 kmem_strdup(const char *s)
62 {
63 char *buf;
64
65 buf = kmem_alloc(strlen(s) + 1, KM_SLEEP);
66 strcpy(buf, s);
67 return (buf);
68 }
69
70 int
ddi_copyin(const void * from,void * to,size_t len,int flags)71 ddi_copyin(const void *from, void *to, size_t len, int flags)
72 {
73 /* Fake ioctl() issued by kernel, 'from' is a kernel address */
74 if (flags & FKIOCTL) {
75 memcpy(to, from, len);
76 return (0);
77 }
78
79 return (copyin(from, to, len));
80 }
81
82 int
ddi_copyout(const void * from,void * to,size_t len,int flags)83 ddi_copyout(const void *from, void *to, size_t len, int flags)
84 {
85 /* Fake ioctl() issued by kernel, 'from' is a kernel address */
86 if (flags & FKIOCTL) {
87 memcpy(to, from, len);
88 return (0);
89 }
90
91 return (copyout(from, to, len));
92 }
93
94 void
spl_panic(const char * file,const char * func,int line,const char * fmt,...)95 spl_panic(const char *file, const char *func, int line, const char *fmt, ...)
96 {
97 va_list ap;
98
99 va_start(ap, fmt);
100 vpanic(fmt, ap);
101 va_end(ap);
102 }
103
104 /*
105 * Check if the current thread is a memory reclaim thread.
106 * Returns true if curproc is pageproc (FreeBSD's page daemon).
107 */
108 int
current_is_reclaim_thread(void)109 current_is_reclaim_thread(void)
110 {
111 return (curproc == pageproc);
112 }
113
114 SYSINIT(opensolaris_utsname_init, SI_SUB_TUNABLES, SI_ORDER_ANY,
115 opensolaris_utsname_init, NULL);
116