Bluetooth: Clear advertising cache before scanning
The LE advertising cache should be cleared before performing a LE
scanning. This will force the cache to contain only fresh advertising
entries.
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9317798..bd285c6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -710,6 +710,12 @@
__u8 le_max_pkt;
} __packed;
+#define HCI_OP_LE_SET_SCAN_ENABLE 0x200c
+struct hci_cp_le_set_scan_enable {
+ __u8 enable;
+ __u8 filter_dup;
+} __packed;
+
#define HCI_OP_LE_CREATE_CONN 0x200d
struct hci_cp_le_create_conn {
__le16 scan_interval;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index db74958..056f7b2 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -839,6 +839,29 @@
rp->randomizer, rp->status);
}
+static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_cp_le_set_scan_enable *cp;
+ __u8 status = *((__u8 *) skb->data);
+
+ BT_DBG("%s status 0x%x", hdev->name, status);
+
+ if (status)
+ return;
+
+ cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_ENABLE);
+ if (!cp)
+ return;
+
+ hci_dev_lock(hdev);
+
+ if (cp->enable == 0x01)
+ hci_adv_entries_clear(hdev);
+
+ hci_dev_unlock(hdev);
+}
+
static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
{
BT_DBG("%s status 0x%x", hdev->name, status);
@@ -1814,6 +1837,10 @@
hci_cc_user_confirm_neg_reply(hdev, skb);
break;
+ case HCI_OP_LE_SET_SCAN_ENABLE:
+ hci_cc_le_set_scan_enable(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%x", hdev->name, opcode);
break;