xref: /netbsd-src/sys/compat/common/clockctl_50.c (revision 8a031a1d1e0aac23d43015c71ae6350b917c8347)
1*8a031a1dSpgoyette /*      $NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $ */
2d91f98a8Spgoyette 
3d91f98a8Spgoyette /*-
4d91f98a8Spgoyette  * Copyright (c) 2001 The NetBSD Foundation, Inc.
5d91f98a8Spgoyette  * All rights reserved.
6d91f98a8Spgoyette  *
7d91f98a8Spgoyette  * This code is derived from software contributed to The NetBSD Foundation
8d91f98a8Spgoyette  * by Emmanuel Dreyfus.
9d91f98a8Spgoyette  *
10d91f98a8Spgoyette  * Redistribution and use in source and binary forms, with or without
11d91f98a8Spgoyette  * modification, are permitted provided that the following conditions
12d91f98a8Spgoyette  * are met:
13d91f98a8Spgoyette  * 1. Redistributions of source code must retain the above copyright
14d91f98a8Spgoyette  *    notice, this list of conditions and the following disclaimer.
15d91f98a8Spgoyette  * 2. Redistributions in binary form must reproduce the above copyright
16d91f98a8Spgoyette  *    notice, this list of conditions and the following disclaimer in the
17d91f98a8Spgoyette  *    documentation and/or other materials provided with the distribution.
18d91f98a8Spgoyette  * 3. The name of the author may not be used to endorse or promote products
19d91f98a8Spgoyette  *    derived from this software without specific prior written permission.
20d91f98a8Spgoyette  *
21d91f98a8Spgoyette  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22d91f98a8Spgoyette  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23d91f98a8Spgoyette  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24d91f98a8Spgoyette  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25d91f98a8Spgoyette  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26d91f98a8Spgoyette  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27d91f98a8Spgoyette  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28d91f98a8Spgoyette  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29d91f98a8Spgoyette  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30d91f98a8Spgoyette  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31d91f98a8Spgoyette  */
32d91f98a8Spgoyette 
33d91f98a8Spgoyette #include <sys/cdefs.h>
34*8a031a1dSpgoyette __KERNEL_RCSID(0, "$NetBSD: clockctl_50.c,v 1.4 2019/12/12 02:15:42 pgoyette Exp $");
35d91f98a8Spgoyette 
36d91f98a8Spgoyette #if defined(_KERNEL_OPT)
37d91f98a8Spgoyette #include "opt_compat_netbsd.h"
38d91f98a8Spgoyette #endif
39d91f98a8Spgoyette 
40d91f98a8Spgoyette #include <sys/param.h>
41d91f98a8Spgoyette #include <sys/systm.h>
42d91f98a8Spgoyette #include <sys/proc.h>
43d91f98a8Spgoyette #include <sys/errno.h>
44d91f98a8Spgoyette #include <sys/ioctl.h>
45d91f98a8Spgoyette #include <sys/device.h>
46d91f98a8Spgoyette #include <sys/time.h>
47d91f98a8Spgoyette #include <sys/conf.h>
48d91f98a8Spgoyette #include <sys/timex.h>
49d91f98a8Spgoyette #include <sys/kauth.h>
50d91f98a8Spgoyette #include <sys/module.h>
51d91f98a8Spgoyette #include <sys/mutex.h>
52d91f98a8Spgoyette #include <sys/compat_stub.h>
53d91f98a8Spgoyette 
54d91f98a8Spgoyette #include <sys/clockctl.h>
55d91f98a8Spgoyette #include <compat/sys/clockctl.h>
56d91f98a8Spgoyette #include <compat/sys/time_types.h>
57d91f98a8Spgoyette 
58d91f98a8Spgoyette int
compat50_clockctlioctl(dev_t dev,u_long cmd,void * data,int flags,struct lwp * l)59d91f98a8Spgoyette compat50_clockctlioctl(dev_t dev, u_long cmd, void *data, int flags,
60d91f98a8Spgoyette     struct lwp *l)
61d91f98a8Spgoyette {
62d91f98a8Spgoyette 	int error = 0;
63d91f98a8Spgoyette 	const struct cdevsw *cd = cdevsw_lookup(dev);
64d91f98a8Spgoyette 
65d91f98a8Spgoyette 	if (cd == NULL || cd->d_ioctl == NULL)
66d91f98a8Spgoyette 		return ENXIO;
67d91f98a8Spgoyette 
68d91f98a8Spgoyette 	switch (cmd) {
69d91f98a8Spgoyette 	case CLOCKCTL_OSETTIMEOFDAY: {
70d91f98a8Spgoyette 		struct timeval50 tv50;
71d91f98a8Spgoyette 		struct timeval tv;
72d91f98a8Spgoyette 		struct clockctl50_settimeofday *args = data;
73d91f98a8Spgoyette 
74d91f98a8Spgoyette 		error = copyin(args->tv, &tv50, sizeof(tv50));
75d91f98a8Spgoyette 		if (error)
76d91f98a8Spgoyette 			return (error);
77d91f98a8Spgoyette 		timeval50_to_timeval(&tv50, &tv);
78d91f98a8Spgoyette 		error = settimeofday1(&tv, false, args->tzp, l, false);
79d91f98a8Spgoyette 		break;
80d91f98a8Spgoyette 	}
81d91f98a8Spgoyette 	case CLOCKCTL_OADJTIME: {
82d91f98a8Spgoyette 		struct timeval atv, oldatv;
83d91f98a8Spgoyette 		struct timeval50 atv50;
84d91f98a8Spgoyette 		struct clockctl50_adjtime *args = data;
85d91f98a8Spgoyette 
86d91f98a8Spgoyette 		if (args->delta) {
87d91f98a8Spgoyette 			error = copyin(args->delta, &atv50, sizeof(atv50));
88d91f98a8Spgoyette 			if (error)
89d91f98a8Spgoyette 				return (error);
90d91f98a8Spgoyette 			timeval50_to_timeval(&atv50, &atv);
91d91f98a8Spgoyette 		}
92d91f98a8Spgoyette 		adjtime1(args->delta ? &atv : NULL,
93d91f98a8Spgoyette 		    args->olddelta ? &oldatv : NULL, l->l_proc);
94d91f98a8Spgoyette 		if (args->olddelta) {
95d91f98a8Spgoyette 			timeval_to_timeval50(&oldatv, &atv50);
96d91f98a8Spgoyette 			error = copyout(&atv50, args->olddelta, sizeof(atv50));
97d91f98a8Spgoyette 		}
98d91f98a8Spgoyette 		break;
99d91f98a8Spgoyette 	}
100d91f98a8Spgoyette 	case CLOCKCTL_OCLOCK_SETTIME: {
101d91f98a8Spgoyette 		struct timespec50 tp50;
102d91f98a8Spgoyette 		struct timespec tp;
103d91f98a8Spgoyette 		struct clockctl50_clock_settime *args = data;
104d91f98a8Spgoyette 
105d91f98a8Spgoyette 		error = copyin(args->tp, &tp50, sizeof(tp50));
106d91f98a8Spgoyette 		if (error)
107d91f98a8Spgoyette 			return (error);
108d91f98a8Spgoyette 		timespec50_to_timespec(&tp50, &tp);
109d91f98a8Spgoyette 		error = clock_settime1(l->l_proc, args->clock_id, &tp, true);
110d91f98a8Spgoyette 		break;
111d91f98a8Spgoyette 	}
112d91f98a8Spgoyette 	case CLOCKCTL_ONTP_ADJTIME: {
113d91f98a8Spgoyette 		if (vec_ntp_timestatus == NULL) {
114d91f98a8Spgoyette 			error = ENOTTY;
115d91f98a8Spgoyette 			break;
116d91f98a8Spgoyette 		}
117d91f98a8Spgoyette 		/* The ioctl number changed but the data did not change. */
118d91f98a8Spgoyette 		error = (cd->d_ioctl)(dev, CLOCKCTL_NTP_ADJTIME,
119d91f98a8Spgoyette 		    data, flags, l);
120d91f98a8Spgoyette 		break;
121d91f98a8Spgoyette 	}
122d91f98a8Spgoyette 	default:
123d91f98a8Spgoyette 		error = ENOTTY;
124d91f98a8Spgoyette 	}
125d91f98a8Spgoyette 
126d91f98a8Spgoyette 	return (error);
127d91f98a8Spgoyette }
128d91f98a8Spgoyette 
129d91f98a8Spgoyette void
clockctl_50_init(void)130d91f98a8Spgoyette clockctl_50_init(void)
131d91f98a8Spgoyette {
132d91f98a8Spgoyette 
133*8a031a1dSpgoyette 	MODULE_HOOK_SET(clockctl_ioctl_50_hook, compat50_clockctlioctl);
134d91f98a8Spgoyette }
135d91f98a8Spgoyette 
136d91f98a8Spgoyette void
clockctl_50_fini(void)137d91f98a8Spgoyette clockctl_50_fini(void)
138d91f98a8Spgoyette {
139d91f98a8Spgoyette 
1408c2f80f1Spgoyette 	MODULE_HOOK_UNSET(clockctl_ioctl_50_hook);
141d91f98a8Spgoyette }
142