1 /* $NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Emmanuel Dreyfus.
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 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $");
35
36 #if defined(_KERNEL_OPT)
37 #include "opt_compat_netbsd.h"
38 #endif
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/proc.h>
43 #include <sys/errno.h>
44 #include <sys/ioctl.h>
45 #include <sys/device.h>
46 #include <sys/time.h>
47 #include <sys/conf.h>
48 #include <sys/timex.h>
49 #include <sys/kauth.h>
50 #include <sys/module.h>
51 #include <sys/mutex.h>
52 #include <sys/compat_stub.h>
53
54 #include <sys/clockctl.h>
55 #include <compat/sys/clockctl.h>
56 #include <compat/sys/time_types.h>
57
58 int
compat50_clockctlioctl(dev_t dev,u_long cmd,void * data,int flags,struct lwp * l)59 compat50_clockctlioctl(dev_t dev, u_long cmd, void *data, int flags,
60 struct lwp *l)
61 {
62 int error = 0;
63 const struct cdevsw *cd = cdevsw_lookup(dev);
64
65 if (cd == NULL || cd->d_ioctl == NULL)
66 return ENXIO;
67
68 switch (cmd) {
69 case CLOCKCTL_OSETTIMEOFDAY: {
70 struct timeval50 tv50;
71 struct timeval tv;
72 struct clockctl50_settimeofday *args = data;
73
74 error = copyin(args->tv, &tv50, sizeof(tv50));
75 if (error)
76 return (error);
77 timeval50_to_timeval(&tv50, &tv);
78 error = settimeofday1(&tv, false, args->tzp, l, false);
79 break;
80 }
81 case CLOCKCTL_OADJTIME: {
82 struct timeval atv, oldatv;
83 struct timeval50 atv50;
84 struct clockctl50_adjtime *args = data;
85
86 if (args->delta) {
87 error = copyin(args->delta, &atv50, sizeof(atv50));
88 if (error)
89 return (error);
90 timeval50_to_timeval(&atv50, &atv);
91 }
92 adjtime1(args->delta ? &atv : NULL,
93 args->olddelta ? &oldatv : NULL, l->l_proc);
94 if (args->olddelta) {
95 timeval_to_timeval50(&oldatv, &atv50);
96 error = copyout(&atv50, args->olddelta, sizeof(atv50));
97 }
98 break;
99 }
100 case CLOCKCTL_OCLOCK_SETTIME: {
101 struct timespec50 tp50;
102 struct timespec tp;
103 struct clockctl50_clock_settime *args = data;
104
105 error = copyin(args->tp, &tp50, sizeof(tp50));
106 if (error)
107 return (error);
108 timespec50_to_timespec(&tp50, &tp);
109 error = clock_settime1(l->l_proc, args->clock_id, &tp, true);
110 break;
111 }
112 case CLOCKCTL_ONTP_ADJTIME: {
113 if (vec_ntp_timestatus == NULL) {
114 error = ENOTTY;
115 break;
116 }
117 /* The ioctl number changed but the data did not change. */
118 error = (cd->d_ioctl)(dev, CLOCKCTL_NTP_ADJTIME,
119 data, flags, l);
120 break;
121 }
122 default:
123 error = ENOTTY;
124 }
125
126 return (error);
127 }
128
129 void
clockctl_50_init(void)130 clockctl_50_init(void)
131 {
132
133 MODULE_HOOK_SET(clockctl_ioctl_50_hook, compat50_clockctlioctl);
134 }
135
136 void
clockctl_50_fini(void)137 clockctl_50_fini(void)
138 {
139
140 MODULE_HOOK_UNSET(clockctl_ioctl_50_hook);
141 }
142