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Bluetooth: Track the current configured random address

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For Bluetooth controllers with LE support, track the value of the
currently configured random address. It is important to know what
the current random address is to avoid unneeded attempts to set
a new address. This will become important when introducing the
LE privacy support in the future.

In addition expose the current configured random address via
debugfs for debugging purposes.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann
2014-02-19 19:52:13 -08:00
committed by Johan Hedberg
parent b32bba6ced
commit 7a4cd51dec
3 changed files with 51 additions and 0 deletions
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24
net/bluetooth/hci_event.c
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@@ -959,6 +959,26 @@ static void hci_cc_read_local_oob_ext_data(struct hci_dev *hdev,
hci_dev_unlock(hdev);
}
static void hci_cc_le_set_random_addr(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 status = *((__u8 *) skb->data);
bdaddr_t *sent;
BT_DBG("%s status 0x%2.2x", hdev->name, status);
sent = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_RANDOM_ADDR);
if (!sent)
return;
hci_dev_lock(hdev);
if (!status)
bacpy(&hdev->random_addr, sent);
hci_dev_unlock(hdev);
}
static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 *sent, status = *((__u8 *) skb->data);
@@ -2308,6 +2328,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cc_user_passkey_neg_reply(hdev, skb);
break;
case HCI_OP_LE_SET_RANDOM_ADDR:
hci_cc_le_set_random_addr(hdev, skb);
break;
case HCI_OP_LE_SET_ADV_ENABLE:
hci_cc_le_set_adv_enable(hdev, skb);
break;