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authorJakub Pawlowski <jpawlowski@google.com>2015-08-07 18:22:56 (GMT)
committerMarcel Holtmann <marcel@holtmann.org>2015-08-10 19:36:13 (GMT)
commitfa1422207756833096b54356a539e3a7d7edec4f (patch)
treec838a65b6ec3eaeb9484d030db72d43ae0ea508c /net/bluetooth
parentcc2b6911a205b327b29c1d771925f8ab2f80295f (diff)
Bluetooth: Enable new connection establishment procedure.
Currently, when trying to connect to already paired device that just rotated its RPA MAC address, old address would be used and connection would fail. In order to fix that, kernel must scan and receive advertisement with fresh RPA before connecting. This patch enables new connection establishment procedure. Instead of just sending HCI_OP_LE_CREATE_CONN to controller, "connect" will add device to kernel whitelist and start scan. If advertisement is received, it'll be compared against whitelist and then trigger connection if it matches. That fixes mentioned reconnect issue for already paired devices. It also make whole connection procedure more robust. We can try to connect to multiple devices at same time now, even though controller allow only one. Signed-off-by: Jakub Pawlowski <jpawlowski@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/l2cap_core.c6
-rw-r--r--net/bluetooth/mgmt.c7
2 files changed, 8 insertions, 5 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 45fffa4..7c65ee2 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -7113,8 +7113,10 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
else
role = HCI_ROLE_MASTER;
- hcon = hci_connect_le(hdev, dst, dst_type, chan->sec_level,
- HCI_LE_CONN_TIMEOUT, role);
+ hcon = hci_connect_le_scan(hdev, dst, dst_type,
+ chan->sec_level,
+ HCI_LE_CONN_TIMEOUT,
+ role);
} else {
u8 auth_type = l2cap_get_auth_type(chan);
hcon = hci_connect_acl(hdev, dst, chan->sec_level, auth_type);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 5f5d785..3a15f096 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3564,9 +3564,10 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
*/
hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
- conn = hci_connect_le(hdev, &cp->addr.bdaddr, addr_type,
- sec_level, HCI_LE_CONN_TIMEOUT,
- HCI_ROLE_MASTER);
+ conn = hci_connect_le_scan(hdev, &cp->addr.bdaddr,
+ addr_type, sec_level,
+ HCI_LE_CONN_TIMEOUT,
+ HCI_ROLE_MASTER);
}
if (IS_ERR(conn)) {

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