[Bluetooth] Add compat handling for timestamp structure
The timestamp structure needs special handling in case of compat
programs. Use the same wrapping method the network core uses.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 1dae3df..68198a7 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -37,6 +37,7 @@
#include <linux/skbuff.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
+#include <linux/compat.h>
#include <linux/socket.h>
#include <linux/ioctl.h>
#include <net/sock.h>
@@ -342,9 +343,23 @@
if (mask & HCI_CMSG_TSTAMP) {
struct timeval tv;
+ void *data;
+ int len;
skb_get_timestamp(skb, &tv);
- put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, sizeof(tv), &tv);
+
+ if (msg->msg_flags & MSG_CMSG_COMPAT) {
+ struct compat_timeval ctv;
+ ctv.tv_sec = tv.tv_sec;
+ ctv.tv_usec = tv.tv_usec;
+ data = &ctv;
+ len = sizeof(ctv);
+ } else {
+ data = &tv;
+ len = sizeof(tv);
+ }
+
+ put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data);
}
}