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
58int
59compat50_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
129void
130clockctl_50_init(void)
131{
132
133	MODULE_HOOK_SET(clockctl_ioctl_50_hook, compat50_clockctlioctl);
134}
135
136void
137clockctl_50_fini(void)
138{
139
140	MODULE_HOOK_UNSET(clockctl_ioctl_50_hook);
141}
142