netdev - Re: [PATCH bpf-next v3] bpf: add End.DT6 action to bpf_lwt_seg6

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Date:   Tue, 31 Jul 2018 09:25:29 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Mathieu Xhonneux <m.xhonneux@...il.com>, netdev@...r.kernel.org
Cc:     alexei.starovoitov@...il.com
Subject: Re: [PATCH bpf-next v3] bpf: add End.DT6 action to
 bpf_lwt_seg6_action helper

On 07/26/2018 04:10 AM, Mathieu Xhonneux wrote:
> The seg6local LWT provides the End.DT6 action, which allows to
> decapsulate an outer IPv6 header containing a Segment Routing Header
> (SRH), full specification is available here:
> 
> https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-05
> 
> This patch adds this action now to the seg6local BPF
> interface. Since it is not mandatory that the inner IPv6 header also
> contains a SRH, seg6_bpf_srh_state has been extended with a pointer to
> a possible SRH of the outermost IPv6 header. This helps assessing if the
> validation must be triggered or not, and avoids some calls to
> ipv6_find_hdr.
> 
> v3: s/1/true, s/0/false for boolean values
> v2: - changed true/false -> 1/0
>     - preempt_enable no longer called in first conditional block
> 
> Signed-off-by: Mathieu Xhonneux <m.xhonneux@...il.com>

Applied to bpf-next, thanks Mathieu!