netdev - Re: [PATCHv2 net 1/2] l2tp: fix manual sequencing (de)activation in L2TPv2

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Date:	Thu, 06 Mar 2014 14:26:02 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	g.nault@...halink.fr
Cc:	netdev@...r.kernel.org, jchapman@...alix.com
Subject: Re: [PATCHv2 net 1/2] l2tp: fix manual sequencing (de)activation
 in L2TPv2

From: Guillaume Nault <g.nault@...halink.fr>
Date: Thu, 6 Mar 2014 11:14:30 +0100

> Commit e0d4435f "l2tp: Update PPP-over-L2TP driver to work over L2TPv3"
> broke the PPPOL2TP_SO_SENDSEQ setsockopt. The L2TP header length was
> previously computed by pppol2tp_l2t_header_len() before each call to
> l2tp_xmit_skb(). Now that header length is retrieved from the hdr_len
> session field, this field must be updated every time the L2TP header
> format is modified, or l2tp_xmit_skb() won't push the right amount of
> data for the L2TP header.
> 
> This patch uses l2tp_session_set_header_len() to adjust hdr_len every
> time sequencing is (de)activated from userspace (either by the
> PPPOL2TP_SO_SENDSEQ setsockopt or the L2TP_ATTR_SEND_SEQ netlink
> attribute).
> 
> Signed-off-by: Guillaume Nault <g.nault@...halink.fr>

Applied.
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