linux-kernel - [Bluez PATCH v1] Bluetooth: L2CAP: handle l2cap config request during open state

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Date:   Tue, 10 Mar 2020 18:08:52 +0800
From:   Howard Chung <howardchung@...gle.com>
To:     linux-bluetooth@...r.kernel.org, marcel@...tmann.org
Cc:     chromeos-bluetooth-upstreaming@...omium.org,
        Howard Chung <howardchung@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Johan Hedberg <johan.hedberg@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jakub Kicinski <kuba@...nel.org>
Subject: [Bluez PATCH v1] Bluetooth: L2CAP: handle l2cap config request during
 open state

According to Core Spec Version 5.2 | Vol 3, Part A 6.1.5,
the incoming L2CAP_ConfigReq should be handled during
OPEN state.

Signed-off-by: Howard Chung <howardchung@...gle.com>

---

 net/bluetooth/l2cap_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 697c0f7f2c1a..5e6e35ab44dd 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4300,7 +4300,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
 		return 0;
 	}
 
-	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
+	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2 &&
+	    chan->state != BT_CONNECTED) {
 		cmd_reject_invalid_cid(conn, cmd->ident, chan->scid,
 				       chan->dcid);
 		goto unlock;
-- 
2.25.1.481.gfbce0eb801-goog