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Commit eb9d91f5 authored by Andre Guedes's avatar Andre Guedes Committed by Gustavo Padovan
Browse files

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: default avatarAndre Guedes <andre.guedes@openbossa.org>
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 9aa04c91

include/net/bluetooth/hci.h

+6 −0
Original line number Diff line number Diff line
@@ -710,6 +710,12 @@ struct hci_rp_le_read_buffer_size { 
	__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;

net/bluetooth/hci_event.c

+27 −0
Original line number Diff line number Diff line
@@ -839,6 +839,29 @@ static void hci_cc_read_local_oob_data_reply(struct hci_dev *hdev, 
						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 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk 
		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;