netdev - Re: [PATCH net-next 4/7] ebpf: extend program type/subsystem registration

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Message-ID: <54DD15BD.7040306@iogearbox.net>
Date:	Thu, 12 Feb 2015 22:06:05 +0100
From:	Daniel Borkmann <daniel@...earbox.net>
To:	Alexei Starovoitov <ast@...mgrid.com>, Thomas Graf <tgraf@...g.ch>
CC:	Jiří Pírko <jiri@...nulli.us>,
	Network Development <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 4/7] ebpf: extend program type/subsystem registration

On 02/11/2015 02:37 AM, Alexei Starovoitov wrote:
...
> My concern that if we allow modules to register new program
> types we allow bypass of gpl and all safety checks we've
> put in place.

Right, I share this concern. That requires to make helper functions
generic enough and shareable among various ebpf users, but that should
be possible, so as mentioned in the other mail, the cls program type
reusing sock_filter_ops is a good way forward.

Thanks for the review!
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