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Bluetooth: Track the AES-CCM encryption status of LE and BR/EDR links 

When encryption for LE links has been enabled, it will always be use
AES-CCM encryption. In case of BR/EDR Secure Connections, the link
will also use AES-CCM encryption. In both cases track the AES-CCM
status in the connection flags.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2014-01-31 16:24:28 -08:00 committed by Johan Hedberg
parent dc8357cc72
commit abf76bad8f
2 changed files with 8 additions and 1 deletions
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1
include/net/bluetooth/hci_core.h
View File

@ -448,6 +448,7 @@ enum {
HCI_CONN_MGMT_CONNECTED,
HCI_CONN_SSP_ENABLED,
HCI_CONN_SC_ENABLED,
HCI_CONN_AES_CCM,
HCI_CONN_POWER_SAVE,
HCI_CONN_REMOTE_OOB,
HCI_CONN_6LOWPAN,

8
net/bluetooth/hci_event.c
View File

@ -1997,8 +1997,14 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
conn->link_mode |= HCI_LM_AUTH;
conn->link_mode |= HCI_LM_ENCRYPT;
conn->sec_level = conn->pending_sec_level;
} else
if ((conn->type == ACL_LINK && ev->encrypt == 0x02) ||
conn->type == LE_LINK)
set_bit(HCI_CONN_AES_CCM, &conn->flags);
} else {
conn->link_mode &= ~HCI_LM_ENCRYPT;
clear_bit(HCI_CONN_AES_CCM, &conn->flags);
}
}
clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);