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-rw-r--r--fs/compat.c43
1 files changed, 35 insertions, 8 deletions
diff --git a/fs/compat.c b/fs/compat.c
index 9f6248dfd9d..9cf75df9b2b 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -77,30 +77,57 @@ int compat_printk(const char *fmt, ...)
*/
asmlinkage long compat_sys_utime(char __user *filename, struct compat_utimbuf __user *t)
{
- struct timeval tv[2];
+ struct timespec tv[2];
if (t) {
if (get_user(tv[0].tv_sec, &t->actime) ||
get_user(tv[1].tv_sec, &t->modtime))
return -EFAULT;
- tv[0].tv_usec = 0;
- tv[1].tv_usec = 0;
+ tv[0].tv_nsec = 0;
+ tv[1].tv_nsec = 0;
}
- return do_utimes(AT_FDCWD, filename, t ? tv : NULL);
+ return do_utimes(AT_FDCWD, filename, t ? tv : NULL, 0);
+}
+
+asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename, struct compat_timespec __user *t, int flags)
+{
+ struct timespec tv[2];
+
+ if (t) {
+ if (get_compat_timespec(&tv[0], &t[0]) ||
+ get_compat_timespec(&tv[1], &t[1]))
+ return -EFAULT;
+
+ if ((tv[0].tv_nsec == UTIME_OMIT || tv[0].tv_nsec == UTIME_NOW)
+ && tv[0].tv_sec != 0)
+ return -EINVAL;
+ if ((tv[1].tv_nsec == UTIME_OMIT || tv[1].tv_nsec == UTIME_NOW)
+ && tv[1].tv_sec != 0)
+ return -EINVAL;
+
+ if (tv[0].tv_nsec == UTIME_OMIT && tv[1].tv_nsec == UTIME_OMIT)
+ return 0;
+ }
+ return do_utimes(dfd, filename, t ? tv : NULL, flags);
}
asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename, struct compat_timeval __user *t)
{
- struct timeval tv[2];
+ struct timespec tv[2];
if (t) {
if (get_user(tv[0].tv_sec, &t[0].tv_sec) ||
- get_user(tv[0].tv_usec, &t[0].tv_usec) ||
+ get_user(tv[0].tv_nsec, &t[0].tv_usec) ||
get_user(tv[1].tv_sec, &t[1].tv_sec) ||
- get_user(tv[1].tv_usec, &t[1].tv_usec))
+ get_user(tv[1].tv_nsec, &t[1].tv_usec))
return -EFAULT;
+ if (tv[0].tv_nsec >= 1000000 || tv[0].tv_nsec < 0 ||
+ tv[1].tv_nsec >= 1000000 || tv[1].tv_nsec < 0)
+ return -EINVAL;
+ tv[0].tv_nsec *= 1000;
+ tv[1].tv_nsec *= 1000;
}
- return do_utimes(dfd, filename, t ? tv : NULL);
+ return do_utimes(dfd, filename, t ? tv : NULL, 0);
}
asmlinkage long compat_sys_utimes(char __user *filename, struct compat_timeval __user *t)