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Bluetooth: Limit userspace exposure of stack internal events

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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>
This commit is contained in:
Marcel Holtmann 2015-10-04 23:33:59 +02:00 committed by Johan Hedberg
parent b224d3ff71
commit ed1b28a48b
1 changed files with 9 additions and 7 deletions
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8
net/bluetooth/hci_sock.c
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@ -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) 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); BT_DBG("hdev %s event %d", hdev->name, event);
/* Send event to monitor */
if (atomic_read(&monitor_promisc)) { if (atomic_read(&monitor_promisc)) {
struct sk_buff *skb; struct sk_buff *skb;
/* Send event to monitor */
skb = create_monitor_event(hdev, event); skb = create_monitor_event(hdev, event);
if (skb) { if (skb) {
hci_send_to_channel(HCI_CHANNEL_MONITOR, skb, hci_send_to_channel(HCI_CHANNEL_MONITOR, skb,
@ -408,10 +406,14 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event)
} }
} }
if (event <= HCI_DEV_DOWN) {
struct hci_ev_si_device ev;
/* Send event to sockets */ /* Send event to sockets */
ev.event = event; ev.event = event;
ev.dev_id = hdev->id; ev.dev_id = hdev->id;
hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev); hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev);
}
if (event == HCI_DEV_UNREG) { if (event == HCI_DEV_UNREG) {
struct sock *sk; struct sock *sk;