Add futimens and utimensat system calls.

The core kernel part is patch file utimes.2008.4.diff from
pluknet@FreeBSD.org. I updated the code for API changes, added the manual
page and added compatibility code for old kernels. There is also audit and
Capsicum support.

A new UTIME_* constant might allow setting birthtimes in future.

Differential Revision:	https://reviews.freebsd.org/D1426
Submitted by:	pluknet (partially)
Reviewed by:	delphij, pluknet, rwatson
Relnotes:	yes

2 files changed, 48 insertions, 0 deletions

diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c
index ffea283..a72612b 100644
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -1300,6 +1300,49 @@ freebsd32_futimesat(struct thread *td, struct freebsd32_futimesat_args *uap)
 }
 
 int
+freebsd32_futimens(struct thread *td, struct freebsd32_futimens_args *uap)
+{
+	struct timespec32 ts32[2];
+	struct timespec ts[2], *tsp;
+	int error;
+
+	if (uap->times != NULL) {
+		error = copyin(uap->times, ts32, sizeof(ts32));
+		if (error)
+			return (error);
+		CP(ts32[0], ts[0], tv_sec);
+		CP(ts32[0], ts[0], tv_nsec);
+		CP(ts32[1], ts[1], tv_sec);
+		CP(ts32[1], ts[1], tv_nsec);
+		tsp = ts;
+	} else
+		tsp = NULL;
+	return (kern_futimens(td, uap->fd, tsp, UIO_SYSSPACE));
+}
+
+int
+freebsd32_utimensat(struct thread *td, struct freebsd32_utimensat_args *uap)
+{
+	struct timespec32 ts32[2];
+	struct timespec ts[2], *tsp;
+	int error;
+
+	if (uap->times != NULL) {
+		error = copyin(uap->times, ts32, sizeof(ts32));
+		if (error)
+			return (error);
+		CP(ts32[0], ts[0], tv_sec);
+		CP(ts32[0], ts[0], tv_nsec);
+		CP(ts32[1], ts[1], tv_sec);
+		CP(ts32[1], ts[1], tv_nsec);
+		tsp = ts;
+	} else
+		tsp = NULL;
+	return (kern_utimensat(td, uap->fd, uap->path, UIO_USERSPACE,
+	    tsp, UIO_SYSSPACE, uap->flag));
+}
+
+int
 freebsd32_adjtime(struct thread *td, struct freebsd32_adjtime_args *uap)
 {
 	struct timeval32 tv32;
diff --git a/sys/compat/freebsd32/syscalls.master b/sys/compat/freebsd32/syscalls.master
index ce655bc..91d1727 100644
--- a/sys/compat/freebsd32/syscalls.master
+++ b/sys/compat/freebsd32/syscalls.master
@@ -1069,3 +1069,8 @@
 545	AUE_POLL	STD	{ int freebsd32_ppoll(struct pollfd *fds, \
 				    u_int nfds, const struct timespec32 *ts, \
 				    const sigset_t *set); }
+546	AUE_FUTIMES	STD	{ int freebsd32_futimens(int fd, \
+				    struct timespec *times); }
+547	AUE_FUTIMESAT	STD	{ int freebsd32_utimensat(int fd, \
+				    char *path, \
+				    struct timespec *times, int flag); }