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Bluetooth: Clear advertising cache before scanning

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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>
This commit is contained in:
Andre Guedes 2011-05-26 16:23:52 -03:00 • committed by Gustavo F. Padovan
parent 9aa04c9108
commit eb9d91f5ae
2 changed files with 33 additions and 0 deletions
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6
include/net/bluetooth/hci.h
View file

@ -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;

27
net/bluetooth/hci_event.c
View file

@ -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;