summaryrefslogtreecommitdiff
path: root/sys/compat/linux32/common/linux32_time.c
blob: 3daa8d1bfb3290a264ddd1a09adad8296ca4db76 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
/*	$NetBSD: linux32_time.c,v 1.13 2007/05/12 20:24:54 dsl Exp $ */

/*-
 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Emmanuel Dreyfus
 * 4. The name of the author may not be used to endorse or promote 
 *    products derived from this software without specific prior written 
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>

__KERNEL_RCSID(0, "$NetBSD: linux32_time.c,v 1.13 2007/05/12 20:24:54 dsl Exp $");

#include <sys/types.h>
#include <sys/param.h>
#include <sys/fstypes.h>
#include <sys/signal.h>
#include <sys/dirent.h>
#include <sys/kauth.h>
#include <sys/kernel.h>
#include <sys/fcntl.h>
#include <sys/namei.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/resourcevar.h>
#include <sys/ucred.h>
#include <sys/swap.h>
#include <sys/vfs_syscalls.h>

#include <machine/types.h>

#include <sys/syscallargs.h>

#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_conv.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>

#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_machdep.h>
#include <compat/linux/common/linux_misc.h>
#include <compat/linux/common/linux_oldolduname.h>
#include <compat/linux/linux_syscallargs.h>

#include <compat/linux32/common/linux32_types.h>
#include <compat/linux32/common/linux32_signal.h>
#include <compat/linux32/common/linux32_machdep.h>
#include <compat/linux32/common/linux32_sysctl.h>
#include <compat/linux32/common/linux32_socketcall.h>
#include <compat/linux32/linux32_syscallargs.h>

extern struct timezone linux_sys_tz;
int
linux32_sys_gettimeofday(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct linux32_sys_gettimeofday_args /* {
		syscallarg(netbsd32_timevalp_t) tp;
		syscallarg(netbsd32_timezonep_t) tzp;
	} */ *uap = v;
	struct timeval tv;
	struct netbsd32_timeval tv32;
	int error;

	if (SCARG_P32(uap, tp) != NULL) {
		microtime(&tv);
		netbsd32_from_timeval(&tv, &tv32);
		if ((error = copyout(&tv32, SCARG_P32(uap, tp), 
		    sizeof(tv32))) != 0)
			return error;
	}

	/* timezone size does not change */
	if (SCARG_P32(uap, tzp) != NULL) {
		if ((error = copyout(&linux_sys_tz, SCARG_P32(uap, tzp), 
		    sizeof(linux_sys_tz))) != 0)
			return error;
	}

	return 0;
}

int
linux32_sys_settimeofday(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct linux32_sys_settimeofday_args /* {
		syscallarg(netbsd32_timevalp_t) tp;
		syscallarg(netbsd32_timezonep_t) tzp;
	} */ *uap = v;
	struct linux_sys_settimeofday_args ua;

	NETBSD32TOP_UAP(tp, struct timeval);
	NETBSD32TOP_UAP(tzp, struct timezone);

	return linux_sys_settimeofday(l, &ua, retval);
}

int
linux32_sys_time(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct linux32_sys_time_args /* {
		syscallcarg(linux32_timep_t) t;
	} */ *uap = v;
        struct timeval atv;
        linux32_time_t tt;
        int error;
 
        microtime(&atv);

        tt = (linux32_time_t)atv.tv_sec;

        if (SCARG_P32(uap, t) && (error = copyout(&tt, 
	    SCARG_P32(uap, t), sizeof(tt))))
                return error;

        retval[0] = tt;

        return 0;
}


static inline linux32_clock_t
timeval_to_clock_t(struct timeval *tv)
{
	return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz);
}

int
linux32_sys_times(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct linux32_sys_times_args /* {
		syscallarg(linux32_tmsp_t) tms;
	} */ *uap = v;
	struct linux32_tms ltms32;

	struct timeval		 t;
	struct rusage		 *ru;
	struct proc		 *p = l->l_proc;

	ru = &p->p_stats->p_ru;
	mutex_enter(&p->p_smutex);
	calcru(p, &ru->ru_utime, &ru->ru_stime, NULL, NULL);
	mutex_exit(&p->p_smutex);

	ltms32.ltms32_utime = timeval_to_clock_t(&ru->ru_utime);
	ltms32.ltms32_stime = timeval_to_clock_t(&ru->ru_stime);

	ru = &p->p_stats->p_cru;
	ltms32.ltms32_cutime = timeval_to_clock_t(&ru->ru_utime);
	ltms32.ltms32_cstime = timeval_to_clock_t(&ru->ru_stime);

	microtime(&t);
	*retval = timeval_to_clock_t(&t);

	return copyout(&ltms32, SCARG_P32(uap, tms), sizeof(ltms32));
}

int
linux32_sys_stime(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct linux32_sys_stime_args /* {
		syscallarg(linux32_timep_t) t;
	} */ *uap = v;
	struct timespec ts;
	linux32_time_t tt32;
	int error;
	
	if ((error = kauth_authorize_system(l->l_cred,
	    KAUTH_SYSTEM_TIME, KAUTH_REQ_SYSTEM_TIME_SYSTEM, NULL, NULL,
	    NULL)) != 0)
		return error;

	if ((error = copyin(&tt32, SCARG_P32(uap, t), sizeof tt32)) != 0)
		return error;

	ts.tv_sec = (long)tt32;
	ts.tv_nsec = 0;

	return settime(l->l_proc, &ts);
}

int
linux32_sys_utime(l, v, retval)
	struct lwp *l;
	void *v;
	register_t *retval;
{
	struct linux32_sys_utime_args /* {
		syscallarg(const netbsd32_charp) path;
		syscallarg(linux32_utimbufp_t) times;
	} */ *uap = v;
        struct timeval tv[2], *tvp;
        struct linux32_utimbuf lut;
        int error;

        if (SCARG_P32(uap, times) != NULL) {
                if ((error = copyin(SCARG_P32(uap, times), &lut, sizeof lut)))
                        return error;

                tv[0].tv_sec = (long)lut.l_actime;
                tv[0].tv_usec = 0;
                tv[1].tv_sec = (long)lut.l_modtime;
		tv[1].tv_usec = 0;
                tvp = tv;
        } else {
		tvp = NULL;
	}
                     
        return do_sys_utimes(l, NULL, SCARG_P32(uap, path), FOLLOW,
			    tvp, UIO_SYSSPACE);
}