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-rw-r--r--include/linux/compat.h8
-rw-r--r--include/linux/hrtimer.h6
-rw-r--r--include/linux/posix-timers.h2
-rw-r--r--include/linux/restart_block.h15
-rw-r--r--kernel/compat.c526
-rw-r--r--kernel/time/alarmtimer.c100
-rw-r--r--kernel/time/hrtimer.c106
-rw-r--r--kernel/time/itimer.c38
-rw-r--r--kernel/time/posix-cpu-timers.c73
-rw-r--r--kernel/time/posix-stubs.c112
-rw-r--r--kernel/time/posix-timers.c332
-rw-r--r--kernel/time/posix-timers.h3
-rw-r--r--kernel/time/time.c106
13 files changed, 723 insertions, 704 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 1c5f3152cbb5..425563c7647b 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -94,6 +94,10 @@ struct compat_itimerval {
struct compat_timeval it_value;
};
+struct itimerval;
+int get_compat_itimerval(struct itimerval *, const struct compat_itimerval __user *);
+int put_compat_itimerval(struct compat_itimerval __user *, const struct itimerval *);
+
struct compat_tms {
compat_clock_t tms_utime;
compat_clock_t tms_stime;
@@ -128,6 +132,10 @@ struct compat_timex {
compat_int_t:32; compat_int_t:32; compat_int_t:32;
};
+struct timex;
+int compat_get_timex(struct timex *, const struct compat_timex __user *);
+int compat_put_timex(struct compat_timex __user *, const struct timex *);
+
#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
typedef struct {
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 8c5b10eb7265..255edd5e7a74 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -452,11 +452,11 @@ static inline u64 hrtimer_forward_now(struct hrtimer *timer,
}
/* Precise sleep: */
-extern long hrtimer_nanosleep(struct timespec64 *rqtp,
- struct timespec __user *rmtp,
+
+extern int nanosleep_copyout(struct restart_block *, struct timespec *);
+extern long hrtimer_nanosleep(const struct timespec64 *rqtp,
const enum hrtimer_mode mode,
const clockid_t clockid);
-extern long hrtimer_nanosleep_restart(struct restart_block *restart_block);
extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
struct task_struct *tsk);
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index 667095dbcd37..29f1b7f09ced 100644
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -110,8 +110,6 @@ void posix_cpu_timers_exit_group(struct task_struct *task);
void set_process_cpu_timer(struct task_struct *task, unsigned int clock_idx,
u64 *newval, u64 *oldval);
-long clock_nanosleep_restart(struct restart_block *restart_block);
-
void update_rlimit_cpu(struct task_struct *task, unsigned long rlim_new);
void posixtimer_rearm(struct siginfo *info);
diff --git a/include/linux/restart_block.h b/include/linux/restart_block.h
index 0d905d8ec553..19df8422606c 100644
--- a/include/linux/restart_block.h
+++ b/include/linux/restart_block.h
@@ -11,6 +11,14 @@ struct timespec;
struct compat_timespec;
struct pollfd;
+enum timespec_type {
+ TT_NONE = 0,
+ TT_NATIVE = 1,
+#ifdef CONFIG_COMPAT
+ TT_COMPAT = 2,
+#endif
+};
+
/*
* System call restart block.
*/
@@ -29,10 +37,13 @@ struct restart_block {
/* For nanosleep */
struct {
clockid_t clockid;
- struct timespec __user *rmtp;
+ enum timespec_type type;
+ union {
+ struct timespec __user *rmtp;
#ifdef CONFIG_COMPAT
- struct compat_timespec __user *compat_rmtp;
+ struct compat_timespec __user *compat_rmtp;
#endif
+ };
u64 expires;
} nanosleep;
/* For poll */
diff --git a/kernel/compat.c b/kernel/compat.c
index 933bcb31ae10..ebd8bdc3fd68 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -30,100 +30,66 @@
#include <linux/uaccess.h>
-static int compat_get_timex(struct timex *txc, struct compat_timex __user *utp)
+int compat_get_timex(struct timex *txc, const struct compat_timex __user *utp)
{
- memset(txc, 0, sizeof(struct timex));
-
- if (!access_ok(VERIFY_READ, utp, sizeof(struct compat_timex)) ||
- __get_user(txc->modes, &utp->modes) ||
- __get_user(txc->offset, &utp->offset) ||
- __get_user(txc->freq, &utp->freq) ||
- __get_user(txc->maxerror, &utp->maxerror) ||
- __get_user(txc->esterror, &utp->esterror) ||
- __get_user(txc->status, &utp->status) ||
- __get_user(txc->constant, &utp->constant) ||
- __get_user(txc->precision, &utp->precision) ||
- __get_user(txc->tolerance, &utp->tolerance) ||
- __get_user(txc->time.tv_sec, &utp->time.tv_sec) ||
- __get_user(txc->time.tv_usec, &utp->time.tv_usec) ||
- __get_user(txc->tick, &utp->tick) ||
- __get_user(txc->ppsfreq, &utp->ppsfreq) ||
- __get_user(txc->jitter, &utp->jitter) ||
- __get_user(txc->shift, &utp->shift) ||
- __get_user(txc->stabil, &utp->stabil) ||
- __get_user(txc->jitcnt, &utp->jitcnt) ||
- __get_user(txc->calcnt, &utp->calcnt) ||
- __get_user(txc->errcnt, &utp->errcnt) ||
- __get_user(txc->stbcnt, &utp->stbcnt))
- return -EFAULT;
+ struct compat_timex tx32;
- return 0;
-}
-
-static int compat_put_timex(struct compat_timex __user *utp, struct timex *txc)
-{
- if (!access_ok(VERIFY_WRITE, utp, sizeof(struct compat_timex)) ||
- __put_user(txc->modes, &utp->modes) ||
- __put_user(txc->offset, &utp->offset) ||
- __put_user(txc->freq, &utp->freq) ||
- __put_user(txc->maxerror, &utp->maxerror) ||
- __put_user(txc->esterror, &utp->esterror) ||
- __put_user(txc->status, &utp->status) ||
- __put_user(txc->constant, &utp->constant) ||
- __put_user(txc->precision, &utp->precision) ||
- __put_user(txc->tolerance, &utp->tolerance) ||
- __put_user(txc->time.tv_sec, &utp->time.tv_sec) ||
- __put_user(txc->time.tv_usec, &utp->time.tv_usec) ||
- __put_user(txc->tick, &utp->tick) ||
- __put_user(txc->ppsfreq, &utp->ppsfreq) ||
- __put_user(txc->jitter, &utp->jitter) ||
- __put_user(txc->shift, &utp->shift) ||
- __put_user(txc->stabil, &utp->stabil) ||
- __put_user(txc->jitcnt, &utp->jitcnt) ||
- __put_user(txc->calcnt, &utp->calcnt) ||
- __put_user(txc->errcnt, &utp->errcnt) ||
- __put_user(txc->stbcnt, &utp->stbcnt) ||
- __put_user(txc->tai, &utp->tai))
+ if (copy_from_user(&tx32, utp, sizeof(struct compat_timex)))
return -EFAULT;
- return 0;
-}
-COMPAT_SYSCALL_DEFINE2(gettimeofday, struct compat_timeval __user *, tv,
- struct timezone __user *, tz)
-{
- if (tv) {
- struct timeval ktv;
- do_gettimeofday(&ktv);
- if (compat_put_timeval(&ktv, tv))
- return -EFAULT;
- }
- if (tz) {
- if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
- return -EFAULT;
- }
+ txc->modes = tx32.modes;
+ txc->offset = tx32.offset;
+ txc->freq = tx32.freq;
+ txc->maxerror = tx32.maxerror;
+ txc->esterror = tx32.esterror;
+ txc->status = tx32.status;
+ txc->constant = tx32.constant;
+ txc->precision = tx32.precision;
+ txc->tolerance = tx32.tolerance;
+ txc->time.tv_sec = tx32.time.tv_sec;
+ txc->time.tv_usec = tx32.time.tv_usec;
+ txc->tick = tx32.tick;
+ txc->ppsfreq = tx32.ppsfreq;
+ txc->jitter = tx32.jitter;
+ txc->shift = tx32.shift;
+ txc->stabil = tx32.stabil;
+ txc->jitcnt = tx32.jitcnt;
+ txc->calcnt = tx32.calcnt;
+ txc->errcnt = tx32.errcnt;
+ txc->stbcnt = tx32.stbcnt;
return 0;
}
-COMPAT_SYSCALL_DEFINE2(settimeofday, struct compat_timeval __user *, tv,
- struct timezone __user *, tz)
-{
- struct timespec64 new_ts;
- struct timeval user_tv;
- struct timezone new_tz;
-
- if (tv) {
- if (compat_get_timeval(&user_tv, tv))
- return -EFAULT;
- new_ts.tv_sec = user_tv.tv_sec;
- new_ts.tv_nsec = user_tv.tv_usec * NSEC_PER_USEC;
- }
- if (tz) {
- if (copy_from_user(&new_tz, tz, sizeof(*tz)))
- return -EFAULT;
- }
-
- return do_sys_settimeofday64(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
+int compat_put_timex(struct compat_timex __user *utp, const struct timex *txc)
+{
+ struct compat_timex tx32;
+
+ memset(&tx32, 0, sizeof(struct compat_timex));
+ tx32.modes = txc->modes;
+ tx32.offset = txc->offset;
+ tx32.freq = txc->freq;
+ tx32.maxerror = txc->maxerror;
+ tx32.esterror = txc->esterror;
+ tx32.status = txc->status;
+ tx32.constant = txc->constant;
+ tx32.precision = txc->precision;
+ tx32.tolerance = txc->tolerance;
+ tx32.time.tv_sec = txc->time.tv_sec;
+ tx32.time.tv_usec = txc->time.tv_usec;
+ tx32.tick = txc->tick;
+ tx32.ppsfreq = txc->ppsfreq;
+ tx32.jitter = txc->jitter;
+ tx32.shift = txc->shift;
+ tx32.stabil = txc->stabil;
+ tx32.jitcnt = txc->jitcnt;
+ tx32.calcnt = txc->calcnt;
+ tx32.errcnt = txc->errcnt;
+ tx32.stbcnt = txc->stbcnt;
+ tx32.tai = txc->tai;
+ if (copy_to_user(utp, &tx32, sizeof(struct compat_timex)))
+ return -EFAULT;
+ return 0;
}
static int __compat_get_timeval(struct timeval *tv, const struct compat_timeval __user *ctv)
@@ -213,141 +179,28 @@ int compat_convert_timespec(struct timespec __user **kts,
return 0;
}
-static long compat_nanosleep_restart(struct restart_block *restart)
-{
- struct compat_timespec __user *rmtp;
- struct timespec rmt;
- mm_segment_t oldfs;
- long ret;
-
- restart->nanosleep.rmtp = (struct timespec __user *) &rmt;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- ret = hrtimer_nanosleep_restart(restart);
- set_fs(oldfs);
-
- if (ret == -ERESTART_RESTARTBLOCK) {
- rmtp = restart->nanosleep.compat_rmtp;
-
- if (rmtp && compat_put_timespec(&rmt, rmtp))
- return -EFAULT;
- }
-
- return ret;
-}
-
-COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
- struct compat_timespec __user *, rmtp)
+int get_compat_itimerval(struct itimerval *o, const struct compat_itimerval __user *i)
{
- struct timespec tu, rmt;
- struct timespec64 tu64;
- mm_segment_t oldfs;
- long ret;
+ struct compat_itimerval v32;
- if (compat_get_timespec(&tu, rqtp))
+ if (copy_from_user(&v32, i, sizeof(struct compat_itimerval)))
return -EFAULT;
-
- tu64 = timespec_to_timespec64(tu);
- if (!timespec64_valid(&tu64))
- return -EINVAL;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- ret = hrtimer_nanosleep(&tu64,
- rmtp ? (struct timespec __user *)&rmt : NULL,
- HRTIMER_MODE_REL, CLOCK_MONOTONIC);
- set_fs(oldfs);
-
- /*
- * hrtimer_nanosleep() can only return 0 or
- * -ERESTART_RESTARTBLOCK here because:
- *
- * - we call it with HRTIMER_MODE_REL and therefor exclude the
- * -ERESTARTNOHAND return path.
- *
- * - we supply the rmtp argument from the task stack (due to
- * the necessary compat conversion. So the update cannot
- * fail, which excludes the -EFAULT return path as well. If
- * it fails nevertheless we have a bigger problem and wont
- * reach this place anymore.
- *
- * - if the return value is 0, we do not have to update rmtp
- * because there is no remaining time.
- *
- * We check for -ERESTART_RESTARTBLOCK nevertheless if the
- * core implementation decides to return random nonsense.
- */
- if (ret == -ERESTART_RESTARTBLOCK) {
- struct restart_block *restart = &current->restart_block;
-
- restart->fn = compat_nanosleep_restart;
- restart->nanosleep.compat_rmtp = rmtp;
-
- if (rmtp && compat_put_timespec(&rmt, rmtp))
- return -EFAULT;
- }
- return ret;
-}
-
-static inline long get_compat_itimerval(struct itimerval *o,
- struct compat_itimerval __user *i)
-{
- return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
- (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
- __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
- __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
- __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
-}
-
-static inline long put_compat_itimerval(struct compat_itimerval __user *o,
- struct itimerval *i)
-{
- return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
- (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
- __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
- __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
- __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
-}
-
-asmlinkage long sys_ni_posix_timers(void);
-
-COMPAT_SYSCALL_DEFINE2(getitimer, int, which,
- struct compat_itimerval __user *, it)
-{
- struct itimerval kit;
- int error;
-
- if (!IS_ENABLED(CONFIG_POSIX_TIMERS))
- return sys_ni_posix_timers();
-
- error = do_getitimer(which, &kit);
- if (!error && put_compat_itimerval(it, &kit))
- error = -EFAULT;
- return error;
+ o->it_interval.tv_sec = v32.it_interval.tv_sec;
+ o->it_interval.tv_usec = v32.it_interval.tv_usec;
+ o->it_value.tv_sec = v32.it_value.tv_sec;
+ o->it_value.tv_usec = v32.it_value.tv_usec;
+ return 0;
}
-COMPAT_SYSCALL_DEFINE3(setitimer, int, which,
- struct compat_itimerval __user *, in,
- struct compat_itimerval __user *, out)
+int put_compat_itimerval(struct compat_itimerval __user *o, const struct itimerval *i)
{
- struct itimerval kin, kout;
- int error;
-
- if (!IS_ENABLED(CONFIG_POSIX_TIMERS))
- return sys_ni_posix_timers();
+ struct compat_itimerval v32;
- if (in) {
- if (get_compat_itimerval(&kin, in))
- return -EFAULT;
- } else
- memset(&kin, 0, sizeof(kin));
-
- error = do_setitimer(which, &kin, out ? &kout : NULL);
- if (error || !out)
- return error;
- if (put_compat_itimerval(out, &kout))
- return -EFAULT;
- return 0;
+ v32.it_interval.tv_sec = i->it_interval.tv_sec;
+ v32.it_interval.tv_usec = i->it_interval.tv_usec;
+ v32.it_value.tv_sec = i->it_value.tv_sec;
+ v32.it_value.tv_usec = i->it_value.tv_usec;
+ return copy_to_user(o, &v32, sizeof(struct compat_itimerval)) ? -EFAULT : 0;
}
static compat_clock_t clock_t_to_compat_clock_t(clock_t x)
@@ -689,193 +542,6 @@ int put_compat_itimerspec(struct compat_itimerspec __user *dst,
return 0;
}
-COMPAT_SYSCALL_DEFINE3(timer_create, clockid_t, which_clock,
- struct compat_sigevent __user *, timer_event_spec,
- timer_t __user *, created_timer_id)
-{
- struct sigevent __user *event = NULL;
-
- if (timer_event_spec) {
- struct sigevent kevent;
-
- event = compat_alloc_user_space(sizeof(*event));
- if (get_compat_sigevent(&kevent, timer_event_spec) ||
- copy_to_user(event, &kevent, sizeof(*event)))
- return -EFAULT;
- }
-
- return sys_timer_create(which_clock, event, created_timer_id);
-}
-
-COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
- struct compat_itimerspec __user *, new,
- struct compat_itimerspec __user *, old)
-{
- long err;
- mm_segment_t oldfs;
- struct itimerspec newts, oldts;
-
- if (!new)
- return -EINVAL;
- if (get_compat_itimerspec(&newts, new))
- return -EFAULT;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_timer_settime(timer_id, flags,
- (struct itimerspec __user *) &newts,
- (struct itimerspec __user *) &oldts);
- set_fs(oldfs);
- if (!err && old && put_compat_itimerspec(old, &oldts))
- return -EFAULT;
- return err;
-}
-
-COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
- struct compat_itimerspec __user *, setting)
-{
- long err;
- mm_segment_t oldfs;
- struct itimerspec ts;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_timer_gettime(timer_id,
- (struct itimerspec __user *) &ts);
- set_fs(oldfs);
- if (!err && put_compat_itimerspec(setting, &ts))
- return -EFAULT;
- return err;
-}
-
-COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock,
- struct compat_timespec __user *, tp)
-{
- long err;
- mm_segment_t oldfs;
- struct timespec ts;
-
- if (compat_get_timespec(&ts, tp))
- return -EFAULT;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_clock_settime(which_clock,
- (struct timespec __user *) &ts);
- set_fs(oldfs);
- return err;
-}
-
-COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock,
- struct compat_timespec __user *, tp)
-{
- long err;
- mm_segment_t oldfs;
- struct timespec ts;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_clock_gettime(which_clock,
- (struct timespec __user *) &ts);
- set_fs(oldfs);
- if (!err && compat_put_timespec(&ts, tp))
- return -EFAULT;
- return err;
-}
-
-COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock,
- struct compat_timex __user *, utp)
-{
- struct timex txc;
- mm_segment_t oldfs;
- int err, ret;
-
- err = compat_get_timex(&txc, utp);
- if (err)
- return err;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- ret = sys_clock_adjtime(which_clock, (struct timex __user *) &txc);
- set_fs(oldfs);
-
- err = compat_put_timex(utp, &txc);
- if (err)
- return err;
-
- return ret;
-}
-
-COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock,
- struct compat_timespec __user *, tp)
-{
- long err;
- mm_segment_t oldfs;
- struct timespec ts;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_clock_getres(which_clock,
- (struct timespec __user *) &ts);
- set_fs(oldfs);
- if (!err && tp && compat_put_timespec(&ts, tp))
- return -EFAULT;
- return err;
-}
-
-static long compat_clock_nanosleep_restart(struct restart_block *restart)
-{
- long err;
- mm_segment_t oldfs;
- struct timespec tu;
- struct compat_timespec __user *rmtp = restart->nanosleep.compat_rmtp;
-
- restart->nanosleep.rmtp = (struct timespec __user *) &tu;
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = clock_nanosleep_restart(restart);
- set_fs(oldfs);
-
- if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
- compat_put_timespec(&tu, rmtp))
- return -EFAULT;
-
- if (err == -ERESTART_RESTARTBLOCK) {
- restart->fn = compat_clock_nanosleep_restart;
- restart->nanosleep.compat_rmtp = rmtp;
- }
- return err;
-}
-
-COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
- struct compat_timespec __user *, rqtp,
- struct compat_timespec __user *, rmtp)
-{
- long err;
- mm_segment_t oldfs;
- struct timespec in, out;
- struct restart_block *restart;
-
- if (compat_get_timespec(&in, rqtp))
- return -EFAULT;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- err = sys_clock_nanosleep(which_clock, flags,
- (struct timespec __user *) &in,
- (struct timespec __user *) &out);
- set_fs(oldfs);
-
- if ((err == -ERESTART_RESTARTBLOCK) && rmtp &&
- compat_put_timespec(&out, rmtp))
- return -EFAULT;
-
- if (err == -ERESTART_RESTARTBLOCK) {
- restart = &current->restart_block;
- restart->fn = compat_clock_nanosleep_restart;
- restart->nanosleep.compat_rmtp = rmtp;
- }
- return err;
-}
-
/*
* We currently only need the following fields from the sigevent
* structure: sigev_value, sigev_signo, sig_notify and (sometimes
@@ -1035,64 +701,6 @@ COMPAT_SYSCALL_DEFINE4(rt_sigtimedwait, compat_sigset_t __user *, uthese,
return ret;
}
-#ifdef __ARCH_WANT_COMPAT_SYS_TIME
-
-/* compat_time_t is a 32 bit "long" and needs to get converted. */
-
-COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
-{
- compat_time_t i;
- struct timeval tv;
-
- do_gettimeofday(&tv);
- i = tv.tv_sec;
-
- if (tloc) {
- if (put_user(i,tloc))
- return -EFAULT;
- }
- force_successful_syscall_return();
- return i;
-}
-
-COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
-{
- struct timespec tv;
- int err;
-
- if (get_user(tv.tv_sec, tptr))
- return -EFAULT;
-
- tv.tv_nsec = 0;
-
- err = security_settime(&tv, NULL);
- if (err)
- return err;
-
- do_settimeofday(&tv);
- return 0;
-}
-
-#endif /* __ARCH_WANT_COMPAT_SYS_TIME */
-
-COMPAT_SYSCALL_DEFINE1(adjtimex, struct compat_timex __user *, utp)
-{
- struct timex txc;
- int err, ret;
-
- err = compat_get_timex(&txc, utp);
- if (err)
- return err;
-
- ret = do_adjtimex(&txc);
-
- err = compat_put_timex(utp, &txc);
- if (err)
- return err;
-
- return ret;
-}
-
#ifdef CONFIG_NUMA
COMPAT_SYSCALL_DEFINE6(move_pages, pid_t, pid, compat_ulong_t, nr_pages,
compat_uptr_t __user *, pages32,
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index d8a7a7e214de..c991cf212c6d 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -27,6 +27,7 @@
#include <linux/posix-timers.h>
#include <linux/workqueue.h>
#include <linux/freezer.h>
+#include <linux/compat.h>
#include "posix-timers.h"
@@ -688,8 +689,10 @@ static enum alarmtimer_restart alarmtimer_nsleep_wakeup(struct alarm *alarm,
*
* Sets the alarm timer and sleeps until it is fired or interrupted.
*/
-static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp)
+static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp,
+ enum alarmtimer_type type)
{
+ struct restart_block *restart;
alarm->data = (void *)current;
do {
set_current_state(TASK_INTERRUPTIBLE);
@@ -702,36 +705,25 @@ static int alarmtimer_do_nsleep(struct alarm *alarm, ktime_t absexp)
__set_current_state(TASK_RUNNING);
- return (alarm->data == NULL);
-}
-
-
-/**
- * update_rmtp - Update remaining timespec value
- * @exp: expiration time
- * @type: timer type
- * @rmtp: user pointer to remaining timepsec value
- *
- * Helper function that fills in rmtp value with time between
- * now and the exp value
- */
-static int update_rmtp(ktime_t exp, enum alarmtimer_type type,
- struct timespec __user *rmtp)
-{
- struct timespec rmt;
- ktime_t rem;
-
- rem = ktime_sub(exp, alarm_bases[type].gettime());
-
- if (rem <= 0)
+ if (!alarm->data)
return 0;
- rmt = ktime_to_timespec(rem);
- if (copy_to_user(rmtp, &rmt, sizeof(*rmtp)))
- return -EFAULT;
+ if (freezing(current))
+ alarmtimer_freezerset(absexp, type);
+ restart = &current->restart_block;
+ if (restart->nanosleep.type != TT_NONE) {
+ struct timespec rmt;
+ ktime_t rem;
+
+ rem = ktime_sub(absexp, alarm_bases[type].gettime());
- return 1;
+ if (rem <= 0)
+ return 0;
+ rmt = ktime_to_timespec(rem);
+ return nanosleep_copyout(restart, &rmt);
+ }
+ return -ERESTART_RESTARTBLOCK;
}
/**
@@ -743,32 +735,12 @@ static int update_rmtp(ktime_t exp, enum alarmtimer_type type,
static long __sched alarm_timer_nsleep_restart(struct restart_block *restart)
{
enum alarmtimer_type type = restart->nanosleep.clockid;
- ktime_t exp;
- struct timespec __user *rmtp;
+ ktime_t exp = restart->nanosleep.expires;
struct alarm alarm;
- int ret = 0;
- exp = restart->nanosleep.expires;
alarm_init(&alarm, type, alarmtimer_nsleep_wakeup);
- if (alarmtimer_do_nsleep(&alarm, exp))
- goto out;
-
- if (freezing(current))
- alarmtimer_freezerset(exp, type);
-
- rmtp = restart->nanosleep.rmtp;
- if (rmtp) {
- ret = update_rmtp(exp, type, rmtp);
- if (ret <= 0)
- goto out;
- }
-
-
- /* The other values in restart are already filled in */
- ret = -ERESTART_RESTARTBLOCK;
-out:
- return ret;
+ return alarmtimer_do_nsleep(&alarm, exp, type);
}
/**
@@ -781,11 +753,10 @@ out:
* Handles clock_nanosleep calls against _ALARM clockids
*/
static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
- struct timespec64 *tsreq,
- struct timespec __user *rmtp)
+ const struct timespec64 *tsreq)
{
enum alarmtimer_type type = clock2alarm(which_clock);
- struct restart_block *restart;
+ struct restart_block *restart = &current->restart_block;
struct alarm alarm;
ktime_t exp;
int ret = 0;
@@ -808,32 +779,17 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags,
exp = ktime_add(now, exp);
}
- if (alarmtimer_do_nsleep(&alarm, exp))
- goto out;
-
- if (freezing(current))
- alarmtimer_freezerset(exp, type);
+ ret = alarmtimer_do_nsleep(&alarm, exp, type);
+ if (ret != -ERESTART_RESTARTBLOCK)
+ return ret;
/* abs timers don't set remaining time or restart */
- if (flags == TIMER_ABSTIME) {
- ret = -ERESTARTNOHAND;
- goto out;
- }
+ if (flags == TIMER_ABSTIME)
+ return -ERESTARTNOHAND;
- if (rmtp) {
- ret = update_rmtp(exp, type, rmtp);
- if (ret <= 0)
- goto out;
- }
-
- restart = &current->restart_block;
restart->fn = alarm_timer_nsleep_restart;
restart->nanosleep.clockid = type;
restart->nanosleep.expires = exp;
- restart->nanosleep.rmtp = rmtp;
- ret = -ERESTART_RESTARTBLOCK;
-
-out:
return ret;
}
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index ac053bb5296e..81da124f1115 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -51,6 +51,7 @@
#include <linux/sched/debug.h>
#include <linux/timer.h>
#include <linux/freezer.h>
+#include <linux/compat.h>
#include <linux/uaccess.h>
@@ -1439,8 +1440,29 @@ void hrtimer_init_sleeper(struct hrtimer_sleeper *sl, struct task_struct *task)
}
EXPORT_SYMBOL_GPL(hrtimer_init_sleeper);
+int nanosleep_copyout(struct restart_block *restart, struct timespec *ts)
+{
+ switch(restart->nanosleep.type) {
+#ifdef CONFIG_COMPAT
+ case TT_COMPAT:
+ if (compat_put_timespec(ts, restart->nanosleep.compat_rmtp))
+ return -EFAULT;
+ break;
+#endif
+ case TT_NATIVE:
+ if (copy_to_user(restart->nanosleep.rmtp, ts, sizeof(struct timespec)))
+ return -EFAULT;
+ break;
+ default:
+ BUG();
+ }
+ return -ERESTART_RESTARTBLOCK;
+}
+
static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mode)
{
+ struct restart_block *restart;
+
hrtimer_init_sleeper(t, current);
do {
@@ -1457,53 +1479,38 @@ static int __sched do_nanosleep(struct hrtimer_sleeper *t, enum hrtimer_mode mod
__set_current_state(TASK_RUNNING);
- return t->task == NULL;
-}
-
-static int update_rmtp(struct hrtimer *timer, struct timespec __user *rmtp)
-{
- struct timespec rmt;
- ktime_t rem;
-
- rem = hrtimer_expires_remaining(timer);
- if (rem <= 0)
+ if (!t->task)
return 0;
- rmt = ktime_to_timespec(rem);
- if (copy_to_user(rmtp, &rmt, sizeof(*rmtp)))
- return -EFAULT;
+ restart = &current->restart_block;
+ if (restart->nanosleep.type != TT_NONE) {
+ ktime_t rem = hrtimer_expires_remaining(&t->timer);
+ struct timespec rmt;
- return 1;
+ if (rem <= 0)
+ return 0;
+ rmt = ktime_to_timespec(rem);
+
+ return nanosleep_copyout(restart, &rmt);
+ }
+ return -ERESTART_RESTARTBLOCK;
}
-long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
+static long __sched hrtimer_nanosleep_restart(struct restart_block *restart)
{
struct hrtimer_sleeper t;
- struct timespec __user *rmtp;
- int ret = 0;
+ int ret;
hrtimer_init_on_stack(&t.timer, restart->nanosleep.clockid,
HRTIMER_MODE_ABS);
hrtimer_set_expires_tv64(&t.timer, restart->nanosleep.expires);
- if (do_nanosleep(&t, HRTIMER_MODE_ABS))
- goto out;
-
- rmtp = restart->nanosleep.rmtp;
- if (rmtp) {
- ret = update_rmtp(&t.timer, rmtp);
- if (ret <= 0)
- goto out;
- }
-
- /* The other values in restart are already filled in */
- ret = -ERESTART_RESTARTBLOCK;
-out:
+ ret = do_nanosleep(&t, HRTIMER_MODE_ABS);
destroy_hrtimer_on_stack(&t.timer);
return ret;
}
-long hrtimer_nanosleep(struct timespec64 *rqtp, struct timespec __user *rmtp,
+long hrtimer_nanosleep(const struct timespec64 *rqtp,
const enum hrtimer_mode mode, const clockid_t clockid)
{
struct restart_block *restart;
@@ -1517,7 +1524,8 @@ long hrtimer_nanosleep(struct timespec64 *rqtp, struct timespec __user *rmtp,
hrtimer_init_on_stack(&t.timer, clockid, mode);
hrtimer_set_expires_range_ns(&t.timer, timespec64_to_ktime(*rqtp), slack);
- if (do_nanosleep(&t, mode))
+ ret = do_nanosleep(&t, mode);
+ if (ret != -ERESTART_RESTARTBLOCK)
goto out;
/* Absolute timers do not update the rmtp value and restart: */
@@ -1526,19 +1534,10 @@ long hrtimer_nanosleep(struct timespec64 *rqtp, struct timespec __user *rmtp,
goto out;
}
- if (rmtp) {
- ret = update_rmtp(&t.timer, rmtp);
- if (ret <= 0)
- goto out;
- }
-
restart = &current->restart_block;
restart->fn = hrtimer_nanosleep_restart;
restart->nanosleep.clockid = t.timer.base->clockid;
- restart->nanosleep.rmtp = rmtp;
restart->nanosleep.expires = hrtimer_get_expires_tv64(&t.timer);
-
- ret = -ERESTART_RESTARTBLOCK;
out:
destroy_hrtimer_on_stack(&t.timer);
return ret;
@@ -1557,8 +1556,31 @@ SYSCALL_DEFINE2(nanosleep, struct timespec __user *, rqtp,
if (!timespec64_valid(&tu64))
return -EINVAL;
- return hrtimer_nanosleep(&tu64, rmtp, HRTIMER_MODE_REL, CLOCK_MONOTONIC);
+ current->restart_block.nanosleep.type = rmtp ? TT_NATIVE : TT_NONE;
+ current->restart_block.nanosleep.rmtp = rmtp;
+ return hrtimer_nanosleep(&tu64, HRTIMER_MODE_REL, CLOCK_MONOTONIC);
+}
+
+#ifdef CONFIG_COMPAT
+
+COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp,
+ struct compat_timespec __user *, rmtp)
+{
+ struct timespec64 tu64;
+ struct timespec tu;
+
+ if (compat_get_timespec(&tu, rqtp))
+ return -EFAULT;
+
+ tu64 = timespec_to_timespec64(tu);
+ if (!timespec64_valid(&tu64))
+ return -EINVAL;
+
+ current->restart_block.nanosleep.type = rmtp ? TT_COMPAT : TT_NONE;
+ current->restart_block.nanosleep.compat_rmtp = rmtp;
+ return hrtimer_nanosleep(&tu64, HRTIMER_MODE_REL, CLOCK_MONOTONIC);
}
+#endif
/*
* Functions related to boot-time initialization:
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index 087d6a1279b8..9dd7ff5e445a 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -15,6 +15,7 @@
#include <linux/posix-timers.h>
#include <linux/hrtimer.h>
#include <trace/events/timer.h>
+#include <linux/compat.h>
#include <linux/uaccess.h>
@@ -116,6 +117,19 @@ SYSCALL_DEFINE2(getitimer, int, which, struct itimerval __user *, value)
return error;
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(getitimer, int, which,
+ struct compat_itimerval __user *, it)
+{
+ struct itimerval kit;
+ int error = do_getitimer(which, &kit);
+
+ if (!error && put_compat_itimerval(it, &kit))
+ error = -EFAULT;
+ return error;
+}
+#endif
+
/*
* The timer is automagically restarted, when interval != 0
@@ -294,3 +308,27 @@ SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value,
return -EFAULT;
return 0;
}
+
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE3(setitimer, int, which,
+ struct compat_itimerval __user *, in,
+ struct compat_itimerval __user *, out)
+{
+ struct itimerval kin, kout;
+ int error;
+
+ if (in) {
+ if (get_compat_itimerval(&kin, in))
+ return -EFAULT;
+ } else {
+ memset(&kin, 0, sizeof(kin));
+ }
+
+ error = do_setitimer(which, &kin, out ? &kout : NULL);
+ if (error || !out)
+ return error;
+ if (put_compat_itimerval(out, &kout))
+ return -EFAULT;
+ return 0;
+}
+#endif
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index cb4a4eb44279..9df618ee64cf 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -12,6 +12,7 @@
#include <trace/events/timer.h>
#include <linux/tick.h>
#include <linux/workqueue.h>
+#include <linux/compat.h>
#include "posix-timers.h"
@@ -1226,9 +1227,11 @@ void set_process_cpu_timer(struct task_struct *tsk, unsigned int clock_idx,
}
static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
- struct timespec64 *rqtp, struct itimerspec64 *it)
+ const struct timespec64 *rqtp)
{
+ struct itimerspec64 it;
struct k_itimer timer;
+ u64 expires;
int error;
/*
@@ -1242,12 +1245,13 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
timer.it_process = current;
if (!error) {
static struct itimerspec64 zero_it;
+ struct restart_block *restart;
- memset(it, 0, sizeof *it);
- it->it_value = *rqtp;
+ memset(&it, 0, sizeof(it));
+ it.it_value = *rqtp;
spin_lock_irq(&timer.it_lock);
- error = posix_cpu_timer_set(&timer, flags, it, NULL);
+ error = posix_cpu_timer_set(&timer, flags, &it, NULL);
if (error) {
spin_unlock_irq(&timer.it_lock);
return error;
@@ -1276,8 +1280,8 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
/*
* We were interrupted by a signal.
*/
- *rqtp = ns_to_timespec64(timer.it.cpu.expires);
- error = posix_cpu_timer_set(&timer, 0, &zero_it, it);
+ expires = timer.it.cpu.expires;
+ error = posix_cpu_timer_set(&timer, 0, &zero_it, &it);
if (!error) {
/*
* Timer is now unarmed, deletion can not fail.
@@ -1297,7 +1301,7 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
spin_unlock_irq(&timer.it_lock);
}
- if ((it->it_value.tv_sec | it->it_value.tv_nsec) == 0) {
+ if ((it.it_value.tv_sec | it.it_value.tv_nsec) == 0) {
/*
* It actually did fire already.
*/
@@ -1305,6 +1309,17 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
}
error = -ERESTART_RESTARTBLOCK;
+ /*
+ * Report back to the user the time still remaining.
+ */
+ restart = &current->restart_block;
+ restart->nanosleep.expires = expires;
+ if (restart->nanosleep.type != TT_NONE) {
+ struct timespec ts;
+
+ ts = timespec64_to_timespec(it.it_value);
+ error = nanosleep_copyout(restart, &ts);
+ }
}
return error;
@@ -1313,11 +1328,9 @@ static int do_cpu_nanosleep(const clockid_t which_clock, int flags,
static long posix_cpu_nsleep_restart(struct restart_block *restart_block);
static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
- struct timespec64 *rqtp, struct timespec __user *rmtp)
+ const struct timespec64 *rqtp)
{
struct restart_block *restart_block = &current->restart_block;
- struct itimerspec64 it;
- struct timespec ts;
int error;
/*
@@ -1328,23 +1341,15 @@ static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
CPUCLOCK_PID(which_clock) == task_pid_vnr(current)))
return -EINVAL;
- error = do_cpu_nanosleep(which_clock, flags, rqtp, &it);
+ error = do_cpu_nanosleep(which_clock, flags, rqtp);
if (error == -ERESTART_RESTARTBLOCK) {
if (flags & TIMER_ABSTIME)
return -ERESTARTNOHAND;
- /*
- * Report back to the user the time still remaining.
- */
- ts = timespec64_to_timespec(it.it_value);
- if (rmtp && copy_to_user(rmtp, &ts, sizeof(*rmtp)))
- return -EFAULT;
restart_block->fn = posix_cpu_nsleep_restart;
restart_block->nanosleep.clockid = which_clock;
- restart_block->nanosleep.rmtp = rmtp;
- restart_block->nanosleep.expires = timespec64_to_ns(rqtp);
}
return error;
}
@@ -1352,28 +1357,11 @@ static int posix_cpu_nsleep(const clockid_t which_clock, int flags,
static long posix_cpu_nsleep_restart(struct restart_block *restart_block)
{
clockid_t which_clock = restart_block->nanosleep.clockid;
- struct itimerspec64 it;
struct timespec64 t;
- struct timespec tmp;
- int error;
t = ns_to_timespec64(restart_block->nanosleep.expires);
- error = do_cpu_nanosleep(which_clock, TIMER_ABSTIME, &t, &it);
-
- if (error == -ERESTART_RESTARTBLOCK) {
- struct timespec __user *rmtp = restart_block->nanosleep.rmtp;
- /*
- * Report back to the user the time still remaining.
- */
- tmp = timespec64_to_timespec(it.it_value);
- if (rmtp && copy_to_user(rmtp, &tmp, sizeof(*rmtp)))
- return -EFAULT;
-
- restart_block->nanosleep.expires = timespec64_to_ns(&t);
- }
- return error;
-
+ return do_cpu_nanosleep(which_clock, TIMER_ABSTIME, &t);
}
#define PROCESS_CLOCK MAKE_PROCESS_CPUCLOCK(0, CPUCLOCK_SCHED)
@@ -1395,14 +1383,9 @@ static int process_cpu_timer_create(struct k_itimer *timer)
return posix_cpu_timer_create(timer);
}
static int process_cpu_nsleep(const clockid_t which_clock, int flags,
- struct timespec64 *rqtp,
- struct timespec __user *rmtp)
-{
- return posix_cpu_nsleep(PROCESS_CLOCK, flags, rqtp, rmtp);
-}
-static long process_cpu_nsleep_restart(struct restart_block *restart_block)
+ const struct timespec64 *rqtp)
{
- return -EINVAL;
+ return posix_cpu_nsleep(PROCESS_CLOCK, flags, rqtp);
}
static int thread_cpu_clock_getres(const clockid_t which_clock,
struct timespec64 *tp)
@@ -1426,7 +1409,6 @@ const struct k_clock clock_posix_cpu = {
.clock_get = posix_cpu_clock_get,
.timer_create = posix_cpu_timer_create,
.nsleep = posix_cpu_nsleep,
- .nsleep_restart = posix_cpu_nsleep_restart,
.timer_set = posix_cpu_timer_set,
.timer_del = posix_cpu_timer_del,
.timer_get = posix_cpu_timer_get,
@@ -1438,7 +1420,6 @@ const struct k_clock clock_process = {
.clock_get = process_cpu_clock_get,
.timer_create = process_cpu_timer_create,
.nsleep = process_cpu_nsleep,
- .nsleep_restart = process_cpu_nsleep_restart,
};
const struct k_clock clock_thread = {
diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c
index c0cd53eb018a..38f3b20efa29 100644
--- a/kernel/time/posix-stubs.c
+++ b/kernel/time/posix-stubs.c
@@ -17,6 +17,7 @@
#include <linux/ktime.h>
#include <linux/timekeeping.h>
#include <linux/posix-timers.h>
+#include <linux/compat.h>
asmlinkage long sys_ni_posix_timers(void)
{
@@ -27,6 +28,7 @@ asmlinkage long sys_ni_posix_timers(void)
}
#define SYS_NI(name) SYSCALL_ALIAS(sys_##name, sys_ni_posix_timers)
+#define COMPAT_SYS_NI(name) SYSCALL_ALIAS(compat_sys_##name, sys_ni_posix_timers)
SYS_NI(timer_create);
SYS_NI(timer_gettime);
@@ -39,6 +41,12 @@ SYS_NI(setitimer);
#ifdef __ARCH_WANT_SYS_ALARM
SYS_NI(alarm);
#endif
+COMPAT_SYS_NI(timer_create);
+COMPAT_SYS_NI(clock_adjtime);
+COMPAT_SYS_NI(timer_settime);
+COMPAT_SYS_NI(timer_gettime);
+COMPAT_SYS_NI(getitimer);
+COMPAT_SYS_NI(setitimer);
/*
* We preserve minimal support for CLOCK_REALTIME and CLOCK_MONOTONIC
@@ -110,22 +118,106 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags,
case CLOCK_REALTIME:
case CLOCK_MONOTONIC:
case CLOCK_BOOTTIME:
- if (copy_from_user(&t, rqtp, sizeof (struct timespec)))
- return -EFAULT;
- t64 = timespec_to_timespec64(t);
- if (!timespec64_valid(&t64))
- return -EINVAL;
- return hrtimer_nanosleep(&t64, rmtp, flags & TIMER_ABSTIME ?
- HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
- which_clock);
+ break;
default:
return -EINVAL;
}
+
+ if (copy_from_user(&t, rqtp, sizeof (struct timespec)))
+ return -EFAULT;
+ t64 = timespec_to_timespec64(t);
+ if (!timespec64_valid(&t64))
+ return -EINVAL;
+ if (flags & TIMER_ABSTIME)
+ rmtp = NULL;
+ current->restart_block.nanosleep.type = rmtp ? TT_NATIVE : TT_NONE;
+ current->restart_block.nanosleep.rmtp = rmtp;
+ return hrtimer_nanosleep(&t64, flags & TIMER_ABSTIME ?
+ HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
+ which_clock);
}
#ifdef CONFIG_COMPAT
-long clock_nanosleep_restart(struct restart_block *restart_block)
+COMPAT_SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
+ struct compat_timespec __user *, tp)
+{
+ struct timespec64 new_tp64;
+ struct timespec new_tp;
+
+ if (which_clock != CLOCK_REALTIME)
+ return -EINVAL;
+ if (compat_get_timespec(&new_tp, tp))
+ return -EFAULT;
+
+ new_tp64 = timespec_to_timespec64(new_tp);
+ return do_sys_settimeofday64(&new_tp64, NULL);
+}
+
+COMPAT_SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,
+ struct compat_timespec __user *,tp)
{
- return hrtimer_nanosleep_restart(restart_block);
+ struct timespec64 kernel_tp64;
+ struct timespec kernel_tp;
+
+ switch (which_clock) {
+ case CLOCK_REALTIME: ktime_get_real_ts64(&kernel_tp64); break;
+ case CLOCK_MONOTONIC: ktime_get_ts64(&kernel_tp64); break;
+ case CLOCK_BOOTTIME: get_monotonic_boottime64(&kernel_tp64); break;
+ default: return -EINVAL;
+ }
+
+ kernel_tp = timespec64_to_timespec(kernel_tp64);
+ if (compat_put_timespec(&kernel_tp, tp))
+ return -EFAULT;
+ return 0;
+}
+
+COMPAT_SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock,
+ struct compat_timespec __user *, tp)
+{
+ struct timespec rtn_tp = {
+ .tv_sec = 0,
+ .tv_nsec = hrtimer_resolution,
+ };
+
+ switch (which_clock) {
+ case CLOCK_REALTIME:
+ case CLOCK_MONOTONIC:
+ case CLOCK_BOOTTIME:
+ if (compat_put_timespec(&rtn_tp, tp))
+ return -EFAULT;
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
+ struct compat_timespec __user *, rqtp,
+ struct compat_timespec __user *, rmtp)
+{
+ struct timespec64 t64;
+ struct timespec t;
+
+ switch (which_clock) {
+ case CLOCK_REALTIME:
+ case CLOCK_MONOTONIC:
+ case CLOCK_BOOTTIME:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (compat_get_timespec(&t, rqtp))
+ return -EFAULT;
+ t64 = timespec_to_timespec64(t);
+ if (!timespec64_valid(&t64))
+ return -EINVAL;
+ if (flags & TIMER_ABSTIME)
+ rmtp = NULL;
+ current->restart_block.nanosleep.type = rmtp ? TT_COMPAT : TT_NONE;
+ current->restart_block.nanosleep.compat_rmtp = rmtp;
+ return hrtimer_nanosleep(&t64, flags & TIMER_ABSTIME ?
+ HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
+ which_clock);
}
#endif
diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c
index 6e7a70b1bf37..82d67be7d9d1 100644
--- a/kernel/time/posix-timers.c
+++ b/kernel/time/posix-timers.c
@@ -49,6 +49,7 @@
#include <linux/workqueue.h>
#include <linux/export.h>
#include <linux/hashtable.h>
+#include <linux/compat.h>
#include "timekeeping.h"
#include "posix-timers.h"
@@ -72,6 +73,7 @@ static DEFINE_SPINLOCK(hash_lock);
static const struct k_clock * const posix_clocks[];
static const struct k_clock *clockid_to_kclock(const clockid_t id);
+static const struct k_clock clock_realtime, clock_monotonic;
/*
* we assume that the new SIGEV_THREAD_ID shares no bits with the other
@@ -488,15 +490,12 @@ static int common_timer_create(struct k_itimer *new_timer)
}
/* Create a POSIX.1b interval timer. */
-
-SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
- struct sigevent __user *, timer_event_spec,
- timer_t __user *, created_timer_id)
+static int do_timer_create(clockid_t which_clock, struct sigevent *event,
+ timer_t __user *created_timer_id)
{
const struct k_clock *kc = clockid_to_kclock(which_clock);
struct k_itimer *new_timer;
int error, new_timer_id;
- sigevent_t event;
int it_id_set = IT_ID_NOT_SET;
if (!kc)
@@ -521,29 +520,25 @@ SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
new_timer->kclock = kc;
new_timer->it_overrun = -1;
- if (timer_event_spec) {
- if (copy_from_user(&event, timer_event_spec, sizeof (event))) {
- error = -EFAULT;
- goto out;
- }
+ if (event) {
rcu_read_lock();
- new_timer->it_pid = get_pid(good_sigevent(&event));
+ new_timer->it_pid = get_pid(good_sigevent(event));
rcu_read_unlock();
if (!new_timer->it_pid) {
error = -EINVAL;
goto out;
}
+ new_timer->it_sigev_notify = event->sigev_notify;
+ new_timer->sigq->info.si_signo = event->sigev_signo;
+ new_timer->sigq->info.si_value = event->sigev_value;
} else {
- memset(&event.sigev_value, 0, sizeof(event.sigev_value));
- event.sigev_notify = SIGEV_SIGNAL;
- event.sigev_signo = SIGALRM;
- event.sigev_value.sival_int = new_timer->it_id;
+ new_timer->it_sigev_notify = SIGEV_SIGNAL;
+ new_timer->sigq->info.si_signo = SIGALRM;
+ memset(&new_timer->sigq->info.si_value, 0, sizeof(sigval_t));
+ new_timer->sigq->info.si_value.sival_int = new_timer->it_id;
new_timer->it_pid = get_pid(task_tgid(current));
}
- new_timer->it_sigev_notify = event.sigev_notify;
- new_timer->sigq->info.si_signo = event.sigev_signo;
- new_timer->sigq->info.si_value = event.sigev_value;
new_timer->sigq->info.si_tid = new_timer->it_id;
new_timer->sigq->info.si_code = SI_TIMER;
@@ -574,6 +569,36 @@ out:
return error;
}
+SYSCALL_DEFINE3(timer_create, const clockid_t, which_clock,
+ struct sigevent __user *, timer_event_spec,
+ timer_t __user *, created_timer_id)
+{
+ if (timer_event_spec) {
+ sigevent_t event;
+
+ if (copy_from_user(&event, timer_event_spec, sizeof (event)))
+ return -EFAULT;
+ return do_timer_create(which_clock, &event, created_timer_id);
+ }
+ return do_timer_create(which_clock, NULL, created_timer_id);
+}
+
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE3(timer_create, clockid_t, which_clock,
+ struct compat_sigevent __user *, timer_event_spec,
+ timer_t __user *, created_timer_id)
+{
+ if (timer_event_spec) {
+ sigevent_t event;
+
+ if (get_compat_sigevent(&event, timer_event_spec))
+ return -EFAULT;
+ return do_timer_create(which_clock, &event, created_timer_id);
+ }
+ return do_timer_create(which_clock, NULL, created_timer_id);
+}
+#endif
+
/*
* Locking issues: We need to protect the result of the id look up until
* we get the timer locked down so it is not deleted under us. The
@@ -644,7 +669,7 @@ void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)
struct timespec64 ts64;
bool sig_none;
- sig_none = (timr->it_sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_NONE;
+ sig_none = (timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE;
iv = timr->it_interval;
/* interval timer ? */
@@ -688,11 +713,8 @@ void common_timer_get(struct k_itimer *timr, struct itimerspec64 *cur_setting)
}
/* Get the time remaining on a POSIX.1b interval timer. */
-SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
- struct itimerspec __user *, setting)
+static int do_timer_gettime(timer_t timer_id, struct itimerspec64 *setting)
{
- struct itimerspec64 cur_setting64;
- struct itimerspec cur_setting;
struct k_itimer *timr;
const struct k_clock *kc;
unsigned long flags;
@@ -702,22 +724,50 @@ SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
if (!timr)
return -EINVAL;
- memset(&cur_setting64, 0, sizeof(cur_setting64));
+ memset(setting, 0, sizeof(*setting));
kc = timr->kclock;
if (WARN_ON_ONCE(!kc || !kc->timer_get))
ret = -EINVAL;
else
- kc->timer_get(timr, &cur_setting64);
+ kc->timer_get(timr, setting);
unlock_timer(timr, flags);
+ return ret;
+}
- cur_setting = itimerspec64_to_itimerspec(&cur_setting64);
- if (!ret && copy_to_user(setting, &cur_setting, sizeof (cur_setting)))
- return -EFAULT;
+/* Get the time remaining on a POSIX.1b interval timer. */
+SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
+ struct itimerspec __user *, setting)
+{
+ struct itimerspec64 cur_setting64;
+ int ret = do_timer_gettime(timer_id, &cur_setting64);
+ if (!ret) {
+ struct itimerspec cur_setting;
+ cur_setting = itimerspec64_to_itimerspec(&cur_setting64);
+ if (copy_to_user(setting, &cur_setting, sizeof (cur_setting)))
+ ret = -EFAULT;
+ }
return ret;
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id,
+ struct compat_itimerspec __user *, setting)
+{
+ struct itimerspec64 cur_setting64;
+
+ int ret = do_timer_gettime(timer_id, &cur_setting64);
+ if (!ret) {
+ struct itimerspec cur_setting;
+ cur_setting = itimerspec64_to_itimerspec(&cur_setting64);
+ if (put_compat_itimerspec(setting, &cur_setting))
+ ret = -EFAULT;
+ }
+ return ret;
+}
+#endif
+
/*
* Get the number of overruns of a POSIX.1b interval timer. This is to
* be the overrun of the timer last delivered. At the same time we are
@@ -750,6 +800,18 @@ static void common_hrtimer_arm(struct k_itimer *timr, ktime_t expires,
enum hrtimer_mode mode;
mode = absolute ? HRTIMER_MODE_ABS : HRTIMER_MODE_REL;
+ /*
+ * Posix magic: Relative CLOCK_REALTIME timers are not affected by
+ * clock modifications, so they become CLOCK_MONOTONIC based under the
+ * hood. See hrtimer_init(). Update timr->kclock, so the generic
+ * functions which use timr->kclock->clock_get() work.
+ *
+ * Note: it_clock stays unmodified, because the next timer_set() might
+ * use ABSTIME, so it needs to switch back.
+ */
+ if (timr->it_clock == CLOCK_REALTIME)
+ timr->kclock = absolute ? &clock_realtime : &clock_monotonic;
+
hrtimer_init(&timr->it.real.timer, timr->it_clock, mode);
timr->it.real.timer.function = posix_timer_fn;
@@ -805,29 +867,21 @@ int common_timer_set(struct k_itimer *timr, int flags,
return 0;
}
-/* Set a POSIX.1b interval timer */
-SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
- const struct itimerspec __user *, new_setting,
- struct itimerspec __user *, old_setting)
+static int do_timer_settime(timer_t timer_id, int flags,
+ struct itimerspec64 *new_spec64,
+ struct itimerspec64 *old_spec64)
{
- struct itimerspec64 new_spec64, old_spec64;
- struct itimerspec64 *rtn = old_setting ? &old_spec64 : NULL;
- struct itimerspec new_spec, old_spec;
+ const struct k_clock *kc;
struct k_itimer *timr;
unsigned long flag;
- const struct k_clock *kc;
int error = 0;
- if (!new_setting)
+ if (!timespec64_valid(&new_spec64->it_interval) ||
+ !timespec64_valid(&new_spec64->it_value))
return -EINVAL;
- if (copy_from_user(&new_spec, new_setting, sizeof (new_spec)))
- return -EFAULT;
- new_spec64 = itimerspec_to_itimerspec64(&new_spec);
-
- if (!timespec64_valid(&new_spec64.it_interval) ||
- !timespec64_valid(&new_spec64.it_value))
- return -EINVAL;
+ if (old_spec64)
+ memset(old_spec64, 0, sizeof(*old_spec64));
retry:
timr = lock_timer(timer_id, &flag);
if (!timr)
@@ -837,22 +891,71 @@ retry:
if (WARN_ON_ONCE(!kc || !kc->timer_set))
error = -EINVAL;
else
- error = kc->timer_set(timr, flags, &new_spec64, rtn);
+ error = kc->timer_set(timr, flags, new_spec64, old_spec64);
unlock_timer(timr, flag);
if (error == TIMER_RETRY) {
- rtn = NULL; // We already got the old time...
+ old_spec64 = NULL; // We already got the old time...
goto retry;
}
- old_spec = itimerspec64_to_itimerspec(&old_spec64);
- if (old_setting && !error &&
- copy_to_user(old_setting, &old_spec, sizeof (old_spec)))
- error = -EFAULT;
+ return error;
+}
+/* Set a POSIX.1b interval timer */
+SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
+ const struct itimerspec __user *, new_setting,
+ struct itimerspec __user *, old_setting)
+{
+ struct itimerspec64 new_spec64, old_spec64;
+ struct itimerspec64 *rtn = old_setting ? &old_spec64 : NULL;
+ struct itimerspec new_spec;
+ int error = 0;
+
+ if (!new_setting)
+ return -EINVAL;
+
+ if (copy_from_user(&new_spec, new_setting, sizeof (new_spec)))
+ return -EFAULT;
+ new_spec64 = itimerspec_to_itimerspec64(&new_spec);
+
+ error = do_timer_settime(timer_id, flags, &new_spec64, rtn);
+ if (!error && old_setting) {
+ struct itimerspec old_spec;
+ old_spec = itimerspec64_to_itimerspec(&old_spec64);
+ if (copy_to_user(old_setting, &old_spec, sizeof (old_spec)))
+ error = -EFAULT;
+ }
return error;
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags,
+ struct compat_itimerspec __user *, new,
+ struct compat_itimerspec __user *, old)
+{
+ struct itimerspec64 new_spec64, old_spec64;
+ struct itimerspec64 *rtn = old ? &old_spec64 : NULL;
+ struct itimerspec new_spec;
+ int error = 0;
+
+ if (!new)
+ return -EINVAL;
+ if (get_compat_itimerspec(&new_spec, new))
+ return -EFAULT;
+
+ new_spec64 = itimerspec_to_itimerspec64(&new_spec);
+ error = do_timer_settime(timer_id, flags, &new_spec64, rtn);
+ if (!error && old) {
+ struct itimerspec old_spec;
+ old_spec = itimerspec64_to_itimerspec(&old_spec64);
+ if (put_compat_itimerspec(old, &old_spec))
+ error = -EFAULT;
+ }
+ return error;
+}
+#endif
+
int common_timer_del(struct k_itimer *timer)
{
const struct k_clock *kc = timer->kclock;
@@ -1022,13 +1125,98 @@ SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock,
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)
+{
+ const struct k_clock *kc = clockid_to_kclock(which_clock);
+ struct timex ktx;
+ int err;
+
+ if (!kc)
+ return -EINVAL;
+ if (!kc->clock_adj)
+ return -EOPNOTSUPP;
+
+ err = compat_get_timex(&ktx, utp);
+ if (err)
+ return err;
+
+ err = kc->clock_adj(which_clock, &ktx);
+
+ if (err >= 0)
+ err = compat_put_timex(utp, &ktx);
+
+ return err;
+}
+
+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;
+ 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 && compat_put_timespec(&rtn_tp, tp))
+ error = -EFAULT;
+
+ return error;
+}
+#endif
+
/*
* nanosleep for monotonic and realtime clocks
*/
static int common_nsleep(const clockid_t which_clock, int flags,
- struct timespec64 *tsave, struct timespec __user *rmtp)
+ const struct timespec64 *rqtp)
{
- return hrtimer_nanosleep(tsave, rmtp, flags & TIMER_ABSTIME ?
+ return hrtimer_nanosleep(rqtp, flags & TIMER_ABSTIME ?
HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
which_clock);
}
@@ -1052,24 +1240,42 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags,
t64 = timespec_to_timespec64(t);
if (!timespec64_valid(&t64))
return -EINVAL;
+ if (flags & TIMER_ABSTIME)
+ rmtp = NULL;
+ current->restart_block.nanosleep.type = rmtp ? TT_NATIVE : TT_NONE;
+ current->restart_block.nanosleep.rmtp = rmtp;
- return kc->nsleep(which_clock, flags, &t64, rmtp);
+ return kc->nsleep(which_clock, flags, &t64);
}
-/*
- * This will restart clock_nanosleep. This is required only by
- * compat_clock_nanosleep_restart for now.
- */
-long clock_nanosleep_restart(struct restart_block *restart_block)
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
+ struct compat_timespec __user *, rqtp,
+ struct compat_timespec __user *, rmtp)
{
- clockid_t which_clock = restart_block->nanosleep.clockid;
const struct k_clock *kc = clockid_to_kclock(which_clock);
+ struct timespec64 t64;
+ struct timespec t;
- if (WARN_ON_ONCE(!kc || !kc->nsleep_restart))
+ if (!kc)
return -EINVAL;
+ if (!kc->nsleep)
+ return -ENANOSLEEP_NOTSUP;
+
+ if (compat_get_timespec(&t, rqtp))
+ return -EFAULT;
- return kc->nsleep_restart(restart_block);
+ t64 = timespec_to_timespec64(t);
+ if (!timespec64_valid(&t64))
+ return -EINVAL;
+ if (flags & TIMER_ABSTIME)
+ rmtp = NULL;
+ current->restart_block.nanosleep.type = rmtp ? TT_COMPAT : TT_NONE;
+ current->restart_block.nanosleep.compat_rmtp = rmtp;
+
+ return kc->nsleep(which_clock, flags, &t64);
}
+#endif
static const struct k_clock clock_realtime = {
.clock_getres = posix_get_hrtimer_res,
@@ -1077,7 +1283,6 @@ static const struct k_clock clock_realtime = {
.clock_set = posix_clock_realtime_set,
.clock_adj = posix_clock_realtime_adj,
.nsleep = common_nsleep,
- .nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
.timer_get = common_timer_get,
@@ -1093,7 +1298,6 @@ static const struct k_clock clock_monotonic = {
.clock_getres = posix_get_hrtimer_res,
.clock_get = posix_ktime_get_ts,
.nsleep = common_nsleep,
- .nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
.timer_get = common_timer_get,
@@ -1124,7 +1328,6 @@ static const struct k_clock clock_tai = {
.clock_getres = posix_get_hrtimer_res,
.clock_get = posix_get_tai,
.nsleep = common_nsleep,
- .nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
.timer_get = common_timer_get,
@@ -1140,7 +1343,6 @@ static const struct k_clock clock_boottime = {
.clock_getres = posix_get_hrtimer_res,
.clock_get = posix_get_boottime,
.nsleep = common_nsleep,
- .nsleep_restart = hrtimer_nanosleep_restart,
.timer_create = common_timer_create,
.timer_set = common_timer_set,
.timer_get = common_timer_get,
diff --git a/kernel/time/posix-timers.h b/kernel/time/posix-timers.h
index b086f5ba2f5b..fb303c3be4d3 100644
--- a/kernel/time/posix-timers.h
+++ b/kernel/time/posix-timers.h
@@ -10,8 +10,7 @@ struct k_clock {
int (*clock_adj)(const clockid_t which_clock, struct timex *tx);
int (*timer_create)(struct k_itimer *timer);
int (*nsleep)(const clockid_t which_clock, int flags,
- struct timespec64 *, struct timespec __user *);
- long (*nsleep_restart)(struct restart_block *restart_block);
+ const struct timespec64 *);
int (*timer_set)(struct k_itimer *timr, int flags,
struct itimerspec64 *new_setting,
struct itimerspec64 *old_setting);
diff --git a/kernel/time/time.c b/kernel/time/time.c
index 49c73c6ed648..7c89e437c4d7 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -39,6 +39,7 @@
#include <linux/ptrace.h>
#include <linux/uaccess.h>
+#include <linux/compat.h>
#include <asm/unistd.h>
#include <generated/timeconst.h>
@@ -99,6 +100,47 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr)
#endif /* __ARCH_WANT_SYS_TIME */
+#ifdef CONFIG_COMPAT
+#ifdef __ARCH_WANT_COMPAT_SYS_TIME
+
+/* compat_time_t is a 32 bit "long" and needs to get converted. */
+COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
+{
+ struct timeval tv;
+ compat_time_t i;
+
+ do_gettimeofday(&tv);
+ i = tv.tv_sec;
+
+ if (tloc) {
+ if (put_user(i,tloc))
+ return -EFAULT;
+ }
+ force_successful_syscall_return();
+ return i;
+}
+
+COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
+{
+ struct timespec tv;
+ int err;
+
+ if (get_user(tv.tv_sec, tptr))
+ return -EFAULT;
+
+ tv.tv_nsec = 0;
+
+ err = security_settime(&tv, NULL);
+ if (err)
+ return err;
+
+ do_settimeofday(&tv);
+ return 0;
+}
+
+#endif /* __ARCH_WANT_COMPAT_SYS_TIME */
+#endif
+
SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv,
struct timezone __user *, tz)
{
@@ -215,6 +257,47 @@ SYSCALL_DEFINE2(settimeofday, struct timeval __user *, tv,
return do_sys_settimeofday64(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
}
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE2(gettimeofday, struct compat_timeval __user *, tv,
+ struct timezone __user *, tz)
+{
+ if (tv) {
+ struct timeval ktv;
+
+ do_gettimeofday(&ktv);
+ if (compat_put_timeval(&ktv, tv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+COMPAT_SYSCALL_DEFINE2(settimeofday, struct compat_timeval __user *, tv,
+ struct timezone __user *, tz)
+{
+ struct timespec64 new_ts;
+ struct timeval user_tv;
+ struct timezone new_tz;
+
+ if (tv) {
+ if (compat_get_timeval(&user_tv, tv))
+ return -EFAULT;
+ new_ts.tv_sec = user_tv.tv_sec;
+ new_ts.tv_nsec = user_tv.tv_usec * NSEC_PER_USEC;
+ }
+ if (tz) {
+ if (copy_from_user(&new_tz, tz, sizeof(*tz)))
+ return -EFAULT;
+ }
+
+ return do_sys_settimeofday64(tv ? &new_ts : NULL, tz ? &new_tz : NULL);
+}
+#endif
+
SYSCALL_DEFINE1(adjtimex, struct timex __user *, txc_p)
{
struct timex txc; /* Local copy of parameter */
@@ -224,12 +307,33 @@ SYSCALL_DEFINE1(adjtimex, struct timex __user *, txc_p)
* structure. But bear in mind that the structures
* may change
*/
- if(copy_from_user(&txc, txc_p, sizeof(struct timex)))
+ if (copy_from_user(&txc, txc_p, sizeof(struct timex)))
return -EFAULT;
ret = do_adjtimex(&txc);
return copy_to_user(txc_p, &txc, sizeof(struct timex)) ? -EFAULT : ret;
}
+#ifdef CONFIG_COMPAT
+
+COMPAT_SYSCALL_DEFINE1(adjtimex, struct compat_timex __user *, utp)
+{
+ struct timex txc;
+ int err, ret;
+
+ err = compat_get_timex(&txc, utp);
+ if (err)
+ return err;
+
+ ret = do_adjtimex(&txc);
+
+ err = compat_put_timex(utp, &txc);
+ if (err)
+ return err;
+
+ return ret;
+}
+#endif
+
/*
* Convert jiffies to milliseconds and back.
*
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