From 392599b95d76f4f3102d8614bdc1957795cd1a3a Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 18 Nov 2010 22:22:28 +0200 Subject: [PATCH] Bluetooth: Create a unified authentication request function This patch adds a single function that's responsible for requesting authentication for outgoing connections. This is preparation for the next patch which will add automated name requests and thereby move the authentication requests to a different location. Signed-off-by: Johan Hedberg Signed-off-by: Gustavo F. Padovan --- net/bluetooth/hci_event.c | 54 +++++++++++++++++++++++++++++---------- 1 file changed, 40 insertions(+), 14 deletions(-) diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 84302768939a..9c6d9bc1d8af 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -677,6 +677,29 @@ static void hci_cs_set_conn_encrypt(struct hci_dev *hdev, __u8 status) hci_dev_unlock(hdev); } +static int hci_request_outgoing_auth(struct hci_dev *hdev, + struct hci_conn *conn) +{ + struct hci_cp_auth_requested cp; + + if (conn->state != BT_CONFIG || !conn->out) + return 0; + + if (conn->sec_level == BT_SECURITY_SDP) + return 0; + + /* Only request authentication for SSP connections or non-SSP + * devices with sec_level HIGH */ + if (!(hdev->ssp_mode > 0 && conn->ssp_mode > 0) && + conn->sec_level != BT_SECURITY_HIGH) + return 0; + + cp.handle = __cpu_to_le16(conn->handle); + hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); + + return 1; +} + static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) { BT_DBG("%s status 0x%x", hdev->name, status); @@ -1156,6 +1179,7 @@ static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff { struct hci_ev_remote_features *ev = (void *) skb->data; struct hci_conn *conn; + int auth_requested; BT_DBG("%s status %d", hdev->name, ev->status); @@ -1177,12 +1201,15 @@ static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff cp.page = 0x01; hci_send_cmd(hdev, HCI_OP_READ_REMOTE_EXT_FEATURES, sizeof(cp), &cp); - } else if (!ev->status && conn->out && - conn->sec_level == BT_SECURITY_HIGH) { - struct hci_cp_auth_requested cp; - cp.handle = ev->handle; - hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); - } else { + goto unlock; + } + + if (!ev->status) + auth_requested = hci_request_outgoing_auth(hdev, conn); + else + auth_requested = 0; + + if (!auth_requested) { conn->state = BT_CONNECTED; hci_proto_connect_cfm(conn, ev->status); hci_conn_put(conn); @@ -1640,6 +1667,7 @@ static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_b { struct hci_ev_remote_ext_features *ev = (void *) skb->data; struct hci_conn *conn; + int auth_requested; BT_DBG("%s", hdev->name); @@ -1661,14 +1689,12 @@ static inline void hci_remote_ext_features_evt(struct hci_dev *hdev, struct sk_b if (conn->state != BT_CONFIG) goto unlock; - if (!ev->status && hdev->ssp_mode > 0 && - conn->ssp_mode > 0 && conn->out && - conn->sec_level != BT_SECURITY_SDP) { - struct hci_cp_auth_requested cp; - cp.handle = ev->handle; - hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, - sizeof(cp), &cp); - } else { + if (!ev->status) + auth_requested = hci_request_outgoing_auth(hdev, conn); + else + auth_requested = 0; + + if (!auth_requested) { conn->state = BT_CONNECTED; hci_proto_connect_cfm(conn, ev->status); hci_conn_put(conn); -- 2.20.1