diff options
Diffstat (limited to 'kernel/time/posix-timers.c')
| -rw-r--r-- | kernel/time/posix-timers.c | 66 |
1 files changed, 62 insertions, 4 deletions
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index e82bb1fd614e..61a5fb91a3c7 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1082,8 +1082,66 @@ SYSCALL_DEFINE2(clock_adjtime, const clockid_t, which_clock, return err; } +SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, + struct timespec __user *, tp) +{ + const struct k_clock *kc = clockid_to_kclock(which_clock); + struct timespec64 rtn_tp64; + struct timespec rtn_tp; + int error; + + if (!kc) + return -EINVAL; + + error = kc->clock_getres(which_clock, &rtn_tp64); + rtn_tp = timespec64_to_timespec(rtn_tp64); + + if (!error && tp && copy_to_user(tp, &rtn_tp, sizeof (rtn_tp))) + error = -EFAULT; + + return error; +} + #ifdef CONFIG_COMPAT +COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock, + struct compat_timespec __user *, tp) +{ + const struct k_clock *kc = clockid_to_kclock(which_clock); + struct timespec64 new_tp64; + struct timespec new_tp; + + if (!kc || !kc->clock_set) + return -EINVAL; + + if (compat_get_timespec(&new_tp, tp)) + return -EFAULT; + + new_tp64 = timespec_to_timespec64(new_tp); + + return kc->clock_set(which_clock, &new_tp64); +} + +COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, + struct compat_timespec __user *, tp) +{ + const struct k_clock *kc = clockid_to_kclock(which_clock); + struct timespec64 kernel_tp64; + struct timespec kernel_tp; + int error; + + if (!kc) + return -EINVAL; + + error = kc->clock_get(which_clock, &kernel_tp64); + kernel_tp = timespec64_to_timespec(kernel_tp64); + + if (!error && compat_put_timespec(&kernel_tp, tp)) + error = -EFAULT; + + return error; +} + COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, struct compat_timex __user *, utp) { @@ -1107,10 +1165,9 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, return err; } -#endif -SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, - struct timespec __user *, tp) +COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, + struct compat_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 rtn_tp64; @@ -1123,11 +1180,12 @@ SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, error = kc->clock_getres(which_clock, &rtn_tp64); rtn_tp = timespec64_to_timespec(rtn_tp64); - if (!error && tp && copy_to_user(tp, &rtn_tp, sizeof (rtn_tp))) + if (!error && tp && compat_put_timespec(&rtn_tp, tp)) error = -EFAULT; return error; } +#endif /* * nanosleep for monotonic and realtime clocks |