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Date: Wed, 14 Aug 2013 13:39:29 -0700 (PDT) From: David Miller <davem@...emloft.net> To: kristian.evensen@...il.com Cc: netdev@...r.kernel.org Subject: Re: [PATCH net-next] ipip: Add room for user-specified custom header From: Kristian Evensen <kristian.evensen@...il.com> Date: Mon, 12 Aug 2013 10:39:38 +0200 > This patch adds support for specifying the size of a custom header to be > inserted between the two IP headers. The actual content will be inserted later, > for example by a module that is attached to a hook. > > A use-case for the feature provided by this patch is to ease the implementation > of custom tunneling protocols. Instead of implementing them directly in the > kernel and having to look out for changes in the kernel behavior/APIs, a > tunneling protocol can be implemented as an independent module. > > To avoid breaking user space (by updating ip_tunnel_params), it is only possible > to specify the custom header length when an IPIP-tunnel is created using > netlink-messages. > > Signed-off-by: Kristian Evensen <kristian.evensen@...il.com> Sorry I'm not even going to consider applying this until you post use-cases for this feature, because right now it just looks like a random way to facilitate some third party proprietary kernel module or similar. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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