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Bluetooth: Add controller side link key clearing to hci_init_req

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The controller may have link keys in its own memory and these keys could
be used for secure connections. However, since the interface to access
these keys doesn't provide information about the key types (which would
be needed to infer the level of security each key provides) using these
keys is rather useless. Therefore, simply clear the controller side list
in the initialization procedure.

Signed-off-by: Johan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Johan Hedberg
2011-01-10 13:44:55 +02:00
committed by Gustavo F. Padovan
parent a5040efa20
commit b0916ea0d9
3 changed files with 25 additions and 0 deletions
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5
net/bluetooth/hci_core.c
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@ -190,6 +190,7 @@ static void hci_reset_req(struct hci_dev *hdev, unsigned long opt)
static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
{
struct hci_cp_delete_stored_link_key cp;
struct sk_buff *skb;
__le16 param;
__u8 flt_type;
@ -260,6 +261,10 @@ static void hci_init_req(struct hci_dev *hdev, unsigned long opt)
/* Connection accept timeout ~20 secs */
param = cpu_to_le16(0x7d00);
hci_send_cmd(hdev, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
bacpy(&cp.bdaddr, BDADDR_ANY);
cp.delete_all = 1;
hci_send_cmd(hdev, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
}
static void hci_scan_req(struct hci_dev *hdev, unsigned long opt)