linux-kernel - Re: [PATCH 03/11] Creation of "usb_device

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Message-ID: <CAJHCu1KORP9vKTSRCVNUBP3dfgiL6yg3DDEpuBjPc4r-iA3DEg@mail.gmail.com>
Date:   Tue, 13 Jun 2017 09:47:33 +0200
From:   Salvatore Mesoraca <s.mesoraca16@...il.com>
To:     Krzysztof Opasiak <k.opasiak@...sung.com>
Cc:     kernel list <linux-kernel@...r.kernel.org>,
        linux-security-module@...r.kernel.org,
        Kernel Hardening <kernel-hardening@...ts.openwall.com>,
        Brad Spengler <spender@...ecurity.net>,
        PaX Team <pageexec@...email.hu>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Kees Cook <keescook@...omium.org>,
        James Morris <james.l.morris@...cle.com>,
        "Serge E. Hallyn" <serge@...lyn.com>, linux-usb@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 03/11] Creation of "usb_device_auth" LSM hook

2017-06-12 19:35 GMT+02:00 Krzysztof Opasiak <k.opasiak@...sung.com>:
> Could you please explain me why we need LSM for this?
>
> There are tools like usbguard[1] and as far as I can tell it looks like they
> can do everything for you...

I have to admit that this is the first time I read about usbguard and it made
me realize that this feature can be implemented in userspace, so no need
to modify the kernel. :)
You are right.

Thank you very much for taking the time to answer me.