include/linux/time32.h

   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