1 #ifndef _LINUX_TIME32_H
2 #define _LINUX_TIME32_H
3 /*
4  * These are all interfaces based on the old time_t definition
5  * that overflows in 2038 on 32-bit architectures. New code
6  * should use the replacements based on time64_t and timespec64.
7  *
8  * Any interfaces in here that become unused as we migrate
9  * code to time64_t should get removed.
10  */
11 
12 #include <linux/time64.h>
13 #include <linux/timex.h>
14 
15 #include <vdso/time32.h>
16 
17 struct old_itimerspec32 {
18 	struct old_timespec32 it_interval;
19 	struct old_timespec32 it_value;
20 };
21 
22 struct old_utimbuf32 {
23 	old_time32_t	actime;
24 	old_time32_t	modtime;
25 };
26 
27 struct old_timex32 {
28 	u32 modes;
29 	s32 offset;
30 	s32 freq;
31 	s32 maxerror;
32 	s32 esterror;
33 	s32 status;
34 	s32 constant;
35 	s32 precision;
36 	s32 tolerance;
37 	struct old_timeval32 time;
38 	s32 tick;
39 	s32 ppsfreq;
40 	s32 jitter;
41 	s32 shift;
42 	s32 stabil;
43 	s32 jitcnt;
44 	s32 calcnt;
45 	s32 errcnt;
46 	s32 stbcnt;
47 	s32 tai;
48 
49 	s32:32; s32:32; s32:32; s32:32;
50 	s32:32; s32:32; s32:32; s32:32;
51 	s32:32; s32:32; s32:32;
52 };
53 
54 extern int get_old_timespec32(struct timespec64 *, const void __user *);
55 extern int put_old_timespec32(const struct timespec64 *, void __user *);
56 extern int get_old_itimerspec32(struct itimerspec64 *its,
57 			const struct old_itimerspec32 __user *uits);
58 extern int put_old_itimerspec32(const struct itimerspec64 *its,
59 			struct old_itimerspec32 __user *uits);
60 struct __kernel_timex;
61 int get_old_timex32(struct __kernel_timex *, const struct old_timex32 __user *);
62 int put_old_timex32(struct old_timex32 __user *, const struct __kernel_timex *);
63 
64 /**
65  * ns_to_kernel_old_timeval - Convert nanoseconds to timeval
66  * @nsec:	the nanoseconds value to be converted
67  *
68  * Returns the timeval representation of the nsec parameter.
69  */
70 extern struct __kernel_old_timeval ns_to_kernel_old_timeval(s64 nsec);
71 
72 #endif
73