1/* $NetBSD: kern_50.c,v 1.1 2014/04/04 18:17:36 njoly Exp $ */
2
3/*-
4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32__KERNEL_RCSID(0, "$NetBSD: kern_50.c,v 1.1 2014/04/04 18:17:36 njoly Exp $");
33
34#include <sys/param.h>
35#include <sys/lwp.h>
36#include <sys/proc.h>
37#include <sys/syscallargs.h>
38
39#include <compat/sys/resource.h>
40#include <compat/sys/time.h>
41
42int
43compat_50_sys__lwp_park(struct lwp *l,
44 const struct compat_50_sys__lwp_park_args *uap, register_t *retval)
45{
46 /* {
47 syscallarg(const struct timespec50 *) ts;
48 syscallarg(lwpid_t) unpark;
49 syscallarg(const void *) hint;
50 syscallarg(const void *) unparkhint;
51 } */
52 struct timespec ts, *tsp;
53 struct timespec50 ts50;
54 int error;
55
56 if (SCARG(uap, ts) == NULL)
57 tsp = NULL;
58 else {
59 error = copyin(SCARG(uap, ts), &ts50, sizeof(ts50));
60 if (error != 0)
61 return error;
62 timespec50_to_timespec(&ts50, &ts);
63 tsp = &ts;
64 }
65
66 if (SCARG(uap, unpark) != 0) {
67 error = lwp_unpark(SCARG(uap, unpark), SCARG(uap, unparkhint));
68 if (error != 0)
69 return error;
70 }
71
72 return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp, SCARG(uap, hint));
73}
74
75static int
76tscopyin(const void *u, void *s, size_t len)
77{
78 struct timespec50 ts50;
79 int error;
80
81 KASSERT(len == sizeof(struct timespec));
82 error = copyin(u, &ts50, sizeof(ts50));
83 if (error)
84 return error;
85 timespec50_to_timespec(&ts50, s);
86 return 0;
87}
88
89static int
90tscopyout(const void *s, void *u, size_t len)
91{
92 struct timespec50 ts50;
93
94 KASSERT(len == sizeof(struct timespec));
95 timespec_to_timespec50(s, &ts50);
96 return copyout(&ts50, u, sizeof(ts50));
97}
98
99int
100compat_50_sys___sigtimedwait(struct lwp *l,
101 const struct compat_50_sys___sigtimedwait_args *uap, register_t *retval)
102{
103 int res;
104
105 res = sigtimedwait1(l,
106 (const struct sys_____sigtimedwait50_args *)uap, retval, copyin,
107 copyout, tscopyin, tscopyout);
108 if (!res)
109 *retval = 0; /* XXX NetBSD<=5 was not POSIX compliant */
110 return res;
111}
112
113int
114compat_50_sys_wait4(struct lwp *l, const struct compat_50_sys_wait4_args *uap,
115 register_t *retval)
116{
117 /* {
118 syscallarg(int) pid;
119 syscallarg(int *) status;
120 syscallarg(int) options;
121 syscallarg(struct rusage50 *) rusage;
122 } */
123 int status, error, pid = SCARG(uap, pid);
124 struct rusage50 ru50;
125 struct rusage ru;
126
127 error = do_sys_wait(&pid, &status, SCARG(uap, options),
128 SCARG(uap, rusage) != NULL ? &ru : NULL);
129
130 retval[0] = pid;
131 if (pid == 0)
132 return error;
133
134 if (SCARG(uap, rusage)) {
135 rusage_to_rusage50(&ru, &ru50);
136 error = copyout(&ru50, SCARG(uap, rusage), sizeof(ru50));
137 }
138
139 if (error == 0 && SCARG(uap, status))
140 error = copyout(&status, SCARG(uap, status), sizeof(status));
141
142 return error;
143}
144