int get_compat_timespec(struct timespec *ts, const struct compat_timespec __user *cts)
{
- return (verify_area(VERIFY_READ, cts, sizeof(*cts)) ||
+ return (!access_ok(VERIFY_READ, cts, sizeof(*cts)) ||
__get_user(ts->tv_sec, &cts->tv_sec) ||
__get_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0;
}
int put_compat_timespec(const struct timespec *ts, struct compat_timespec __user *cts)
{
- return (verify_area(VERIFY_WRITE, cts, sizeof(*cts)) ||
+ return (!access_ok(VERIFY_WRITE, cts, sizeof(*cts)) ||
__put_user(ts->tv_sec, &cts->tv_sec) ||
__put_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0;
}
if (!time_after(expire, now))
return 0;
- current->state = TASK_INTERRUPTIBLE;
- expire = schedule_timeout(expire - now);
+ expire = schedule_timeout_interruptible(expire - now);
if (expire == 0)
return 0;
return -EINVAL;
expire = timespec_to_jiffies(&t) + (t.tv_sec || t.tv_nsec);
- current->state = TASK_INTERRUPTIBLE;
- expire = schedule_timeout(expire);
+ expire = schedule_timeout_interruptible(expire);
if (expire == 0)
return 0;
}
}
+asmlinkage long compat_sys_waitid(int which, compat_pid_t pid,
+ struct compat_siginfo __user *uinfo, int options,
+ struct compat_rusage __user *uru)
+{
+ siginfo_t info;
+ struct rusage ru;
+ long ret;
+ mm_segment_t old_fs = get_fs();
+
+ memset(&info, 0, sizeof(info));
+
+ set_fs(KERNEL_DS);
+ ret = sys_waitid(which, pid, (siginfo_t __user *)&info, options,
+ uru ? (struct rusage __user *)&ru : NULL);
+ set_fs(old_fs);
+
+ if ((ret < 0) || (info.si_signo == 0))
+ return ret;
+
+ if (uru) {
+ ret = put_compat_rusage(&ru, uru);
+ if (ret)
+ return ret;
+ }
+
+ BUG_ON(info.si_code & __SI_MASK);
+ info.si_code |= __SI_CHLD;
+ return copy_siginfo_to_user32(uinfo, &info);
+}
+
static int compat_get_user_cpu_mask(compat_ulong_t __user *user_mask_ptr,
unsigned len, cpumask_t *new_mask)
{
return 0;
}
+long compat_sys_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);
+}
+
long compat_sys_timer_settime(timer_t timer_id, int flags,
struct compat_itimerspec __user *new,
struct compat_itimerspec __user *old)
return err;
}
-/* timer_create is architecture specific because it needs sigevent conversion */
+/*
+ * We currently only need the following fields from the sigevent
+ * structure: sigev_value, sigev_signo, sig_notify and (sometimes
+ * sigev_notify_thread_id). The others are handled in user mode.
+ * We also assume that copying sigev_value.sival_int is sufficient
+ * to keep all the bits of sigev_value.sival_ptr intact.
+ */
+int get_compat_sigevent(struct sigevent *event,
+ const struct compat_sigevent __user *u_event)
+{
+ memset(event, 0, sizeof(*event));
+ return (!access_ok(VERIFY_READ, u_event, sizeof(*u_event)) ||
+ __get_user(event->sigev_value.sival_int,
+ &u_event->sigev_value.sival_int) ||
+ __get_user(event->sigev_signo, &u_event->sigev_signo) ||
+ __get_user(event->sigev_notify, &u_event->sigev_notify) ||
+ __get_user(event->sigev_notify_thread_id,
+ &u_event->sigev_notify_thread_id))
+ ? -EFAULT : 0;
+}
long compat_get_bitmap(unsigned long *mask, compat_ulong_t __user *umask,
unsigned long bitmap_size)
/* align bitmap up to nearest compat_long_t boundary */
bitmap_size = ALIGN(bitmap_size, BITS_PER_COMPAT_LONG);
- if (verify_area(VERIFY_READ, umask, bitmap_size / 8))
+ if (!access_ok(VERIFY_READ, umask, bitmap_size / 8))
return -EFAULT;
nr_compat_longs = BITS_TO_COMPAT_LONGS(bitmap_size);
/* align bitmap up to nearest compat_long_t boundary */
bitmap_size = ALIGN(bitmap_size, BITS_PER_COMPAT_LONG);
- if (verify_area(VERIFY_WRITE, umask, bitmap_size / 8))
+ if (!access_ok(VERIFY_WRITE, umask, bitmap_size / 8))
return -EFAULT;
nr_compat_longs = BITS_TO_COMPAT_LONGS(bitmap_size);
recalc_sigpending();
spin_unlock_irq(¤t->sighand->siglock);
- current->state = TASK_INTERRUPTIBLE;
- timeout = schedule_timeout(timeout);
+ timeout = schedule_timeout_interruptible(timeout);
spin_lock_irq(¤t->sighand->siglock);
sig = dequeue_signal(current, &s, &info);
}
#endif /* __ARCH_WANT_COMPAT_SYS_TIME */
+
+#ifdef __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND
+asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, compat_size_t sigsetsize)
+{
+ sigset_t newset;
+ compat_sigset_t newset32;
+
+ /* XXX: Don't preclude handling different sized sigset_t's. */
+ if (sigsetsize != sizeof(sigset_t))
+ return -EINVAL;
+
+ if (copy_from_user(&newset32, unewset, sizeof(compat_sigset_t)))
+ return -EFAULT;
+ sigset_from_compat(&newset, &newset32);
+ sigdelsetmask(&newset, sigmask(SIGKILL)|sigmask(SIGSTOP));
+
+ spin_lock_irq(¤t->sighand->siglock);
+ current->saved_sigmask = current->blocked;
+ current->blocked = newset;
+ recalc_sigpending();
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+ set_thread_flag(TIF_RESTORE_SIGMASK);
+ return -ERESTARTNOHAND;
+}
+#endif /* __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND */