linux-kernel - Re: [PATCH] NFC: Driver for Inside Secure MicroRead NFC chip

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Fri, 25 Mar 2011 15:26:49 +0100
From:	Samuel Ortiz <sameo@...ux.intel.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Waldemar Rymarkiewicz <waldemar.rymarkiewicz@...to.com>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	hthebaud@...idefr.com, matti.j.aaltonen@...ia.com,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH] NFC: Driver for Inside Secure MicroRead NFC chip

On Fri, Mar 18, 2011 at 01:19:53PM +0100, Arnd Bergmann wrote:
> On Friday 18 March 2011, Waldemar Rymarkiewicz wrote:
> > Add new driver for MicroRead NFC chip connected to i2c bus.
> > 
> > See Documentation/nfc/nfc-microread.txt.
> 
> As I said in my first review and Alan also pointed out now, the
> most important change will be to add a common NFC core layer,
> before adding more hardware drivers.
> 
> Also, regarding the user interface, we need to be really sure
> that this is the best way of talking to NFC devices. The interface
> you have today is a simple character device read/write kind,
> which may be the best thing if the protocol stack on top is
> really simple and there is never the need to have multiple
> applications talking to different endpoints on the wireless
> interface, and if there are no protocol headers being
> send over the character device interface.
> 
> Otherwise, a better interface is probably to add a new network
> socket family and abstract the protocol layers in the kernel.

Yes, NFC seems to be a good fit for a new socket family. Especially if we ever
want to have a proper NFC p2p support from the kernel.
Sending HCI commands should be done through a dedicated netlink socket too.

I am currently strting to work on such solution, and I hope to be able to come
up with a basic prototype for it in a few weeks.

Cheers,
Samuel.

-- 
Intel Open Source Technology Centre
http://oss.intel.com/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/