[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20201015211225.1188104-1-hegtvedt@cisco.com>
Date: Thu, 15 Oct 2020 23:12:23 +0200
From: Hans-Christian Noren Egtvedt <hegtvedt@...co.com>
To: linux-kernel@...r.kernel.org
Cc: gregkh@...uxfoundation.org,
Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
Marcel Holtmann <marcel@...tmann.org>, stable@...r.kernel.org
Subject: [v4.4/bluetooth PATCH 1/3] Bluetooth: Consolidate encryption handling in hci_encrypt_cfm
From: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>
This makes hci_encrypt_cfm calls hci_connect_cfm in case the connection
state is BT_CONFIG so callers don't have to check the state.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@...el.com>
Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
(cherry picked from commit 3ca44c16b0dcc764b641ee4ac226909f5c421aa3)
Cc: stable@...r.kernel.org # 4.4
---
include/net/bluetooth/hci_core.h | 20 ++++++++++++++++++--
net/bluetooth/hci_event.c | 28 +++-------------------------
2 files changed, 21 insertions(+), 27 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7c0c83dfe86e..0269a772bfe1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1235,10 +1235,26 @@ static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
conn->security_cfm_cb(conn, status);
}
-static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
- __u8 encrypt)
+static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status)
{
struct hci_cb *cb;
+ __u8 encrypt;
+
+ if (conn->state == BT_CONFIG) {
+ if (status)
+ conn->state = BT_CONNECTED;
+
+ hci_connect_cfm(conn, status);
+ hci_conn_drop(conn);
+ return;
+ }
+
+ if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
+ encrypt = 0x00;
+ else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
+ encrypt = 0x02;
+ else
+ encrypt = 0x01;
if (conn->sec_level == BT_SECURITY_SDP)
conn->sec_level = BT_SECURITY_LOW;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 03319ab8a7c6..bb9c13506bca 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2479,7 +2479,7 @@ static void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
&cp);
} else {
clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags);
- hci_encrypt_cfm(conn, ev->status, 0x00);
+ hci_encrypt_cfm(conn, ev->status);
}
}
@@ -2565,22 +2565,7 @@ static void read_enc_key_size_complete(struct hci_dev *hdev, u8 status,
conn->enc_key_size = rp->key_size;
}
- if (conn->state == BT_CONFIG) {
- conn->state = BT_CONNECTED;
- hci_connect_cfm(conn, 0);
- hci_conn_drop(conn);
- } else {
- u8 encrypt;
-
- if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags))
- encrypt = 0x00;
- else if (test_bit(HCI_CONN_AES_CCM, &conn->flags))
- encrypt = 0x02;
- else
- encrypt = 0x01;
-
- hci_encrypt_cfm(conn, 0, encrypt);
- }
+ hci_encrypt_cfm(conn, 0);
unlock:
hci_dev_unlock(hdev);
@@ -2674,14 +2659,7 @@ static void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
}
notify:
- if (conn->state == BT_CONFIG) {
- if (!ev->status)
- conn->state = BT_CONNECTED;
-
- hci_connect_cfm(conn, ev->status);
- hci_conn_drop(conn);
- } else
- hci_encrypt_cfm(conn, ev->status, ev->encrypt);
+ hci_encrypt_cfm(conn, ev->status);
unlock:
hci_dev_unlock(hdev);
--
2.27.0
Powered by blists - more mailing lists