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Subject: Re: After kernel update: connect/disconnect forever while attempting
 to auto-reconnect
From:   Johan Hedberg <johan.hedberg@gmail.com>
In-Reply-To: <CABBYNZKbWAaO9dTnHcV7vCYodRQYEZT8=PBws+=_iip-7Njo2w@mail.gmail.com>
Date:   Sat, 18 May 2019 21:08:28 +0300
Cc:     Alexandre Pereira Nunes <alexandre.nunes@gmail.com>,
        "linux-bluetooth@vger.kernel.org" <linux-bluetooth@vger.kernel.org>
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To:     Luiz Von Dentz <luiz.dentz@gmail.com>
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Hi Luiz,

On 18 May 2019, at 19.30, Luiz Augusto von Dentz <luiz.dentz@gmail.com> =
wrote:
> The problem seems to be here:
>=20
> < ACL Data TX: Handle 512 flags 0x00 dlen 16                #87 [hci0] =
9.952984
>      L2CAP: Connection Response (0x03) ident 1 len 8
>        Destination CID: 0
>        Source CID: 65
>        Result: Connection refused - security block (0x0003)
>        Status: No further information available (0x0000)
>=20
> Ruling out encryption since HID don't require it:

When both devices support SSP, encryption is required for any non-SDP =
PSM. The kernel enforces this regardless of what kind of options were =
set for the socket.

Johan=