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-rw-r--r--pkg/sentry/socket/control/control.go10
-rw-r--r--pkg/sentry/syscalls/linux/sys_socket.go2
-rw-r--r--pkg/sentry/syscalls/linux/vfs2/socket.go2
3 files changed, 6 insertions, 8 deletions
diff --git a/pkg/sentry/socket/control/control.go b/pkg/sentry/socket/control/control.go
index ff6b71802..65b556489 100644
--- a/pkg/sentry/socket/control/control.go
+++ b/pkg/sentry/socket/control/control.go
@@ -463,7 +463,7 @@ func CmsgsSpace(t *kernel.Task, cmsgs socket.ControlMessages) int {
}
// Parse parses a raw socket control message into portable objects.
-func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte) (socket.ControlMessages, error) {
+func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte, width uint) (socket.ControlMessages, error) {
var (
cmsgs socket.ControlMessages
fds linux.ControlMessageRights
@@ -487,10 +487,6 @@ func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte) (socket.Con
i += linux.SizeOfControlMessageHeader
length := int(h.Length) - linux.SizeOfControlMessageHeader
- // The use of t.Arch().Width() is analogous to Linux's use of
- // sizeof(long) in CMSG_ALIGN.
- width := t.Arch().Width()
-
switch h.Level {
case linux.SOL_SOCKET:
switch h.Type {
@@ -526,8 +522,10 @@ func Parse(t *kernel.Task, socketOrEndpoint interface{}, buf []byte) (socket.Con
if length < linux.SizeOfTimeval {
return socket.ControlMessages{}, syserror.EINVAL
}
+ var ts linux.Timeval
+ binary.Unmarshal(buf[i:i+linux.SizeOfTimeval], usermem.ByteOrder, &ts)
+ cmsgs.IP.Timestamp = ts.ToNsecCapped()
cmsgs.IP.HasTimestamp = true
- binary.Unmarshal(buf[i:i+linux.SizeOfTimeval], usermem.ByteOrder, &cmsgs.IP.Timestamp)
i += binary.AlignUp(length, width)
default:
diff --git a/pkg/sentry/syscalls/linux/sys_socket.go b/pkg/sentry/syscalls/linux/sys_socket.go
index 4adfa6637..fe45225c1 100644
--- a/pkg/sentry/syscalls/linux/sys_socket.go
+++ b/pkg/sentry/syscalls/linux/sys_socket.go
@@ -1030,7 +1030,7 @@ func sendSingleMsg(t *kernel.Task, s socket.Socket, file *fs.File, msgPtr userme
return 0, err
}
- controlMessages, err := control.Parse(t, s, controlData)
+ controlMessages, err := control.Parse(t, s, controlData, t.Arch().Width())
if err != nil {
return 0, err
}
diff --git a/pkg/sentry/syscalls/linux/vfs2/socket.go b/pkg/sentry/syscalls/linux/vfs2/socket.go
index 987012acc..f5795b4a8 100644
--- a/pkg/sentry/syscalls/linux/vfs2/socket.go
+++ b/pkg/sentry/syscalls/linux/vfs2/socket.go
@@ -1033,7 +1033,7 @@ func sendSingleMsg(t *kernel.Task, s socket.SocketVFS2, file *vfs.FileDescriptio
return 0, err
}
- controlMessages, err := control.Parse(t, s, controlData)
+ controlMessages, err := control.Parse(t, s, controlData, t.Arch().Width())
if err != nil {
return 0, err
}