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authorMarcel Holtmann <marcel@holtmann.org>2015-10-04 23:33:59 +0200
committerJohan Hedberg <johan.hedberg@intel.com>2015-10-05 10:29:23 +0300
commited1b28a48b6c4e206bd88f5758393261710566f2 (patch)
tree93a9f56290c5c8963285735dec946ed68db84c29 /net/bluetooth/hci_sock.c
parentb224d3ff717cc3af91a4ec74d863a176d79331af (diff)
downloadlinux-ed1b28a48b6c4e206bd88f5758393261710566f2.tar.bz2
Bluetooth: Limit userspace exposure of stack internal events
The stack internal events that are exposed to userspace should be limited to HCI_DEV_REG, HCI_DEV_UNREG, HCI_DEV_UP and HCI_DEV_DOWN. Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'net/bluetooth/hci_sock.c')
-rw-r--r--net/bluetooth/hci_sock.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 150556345263..d9ad68448173 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -392,14 +392,12 @@ static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
void hci_sock_dev_event(struct hci_dev *hdev, int event)
{
- struct hci_ev_si_device ev;
-
BT_DBG("hdev %s event %d", hdev->name, event);
- /* Send event to monitor */
if (atomic_read(&monitor_promisc)) {
struct sk_buff *skb;
+ /* Send event to monitor */
skb = create_monitor_event(hdev, event);
if (skb) {
hci_send_to_channel(HCI_CHANNEL_MONITOR, skb,
@@ -408,10 +406,14 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event)
}
}
- /* Send event to sockets */
- ev.event = event;
- ev.dev_id = hdev->id;
- hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev);
+ if (event <= HCI_DEV_DOWN) {
+ struct hci_ev_si_device ev;
+
+ /* Send event to sockets */
+ ev.event = event;
+ ev.dev_id = hdev->id;
+ hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev);
+ }
if (event == HCI_DEV_UNREG) {
struct sock *sk;