From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next 0/2] Pack struct xfrm_usersa_info and struct xfrm_userpolicy_info Date: Tue, 07 Jan 2014 13:07:49 -0500 (EST) Message-ID: <20140107.130749.215535043457683103.davem@davemloft.net> References: <1389077339-12814-1-git-send-email-fan.du@windriver.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: steffen.klassert@secunet.com, stephen@networkplumber.org, dev@lists.strongswan.org, netdev@vger.kernel.org To: fan.du@windriver.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:43318 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753114AbaAGSHx (ORCPT ); Tue, 7 Jan 2014 13:07:53 -0500 In-Reply-To: <1389077339-12814-1-git-send-email-fan.du@windriver.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Fan Du Date: Tue, 7 Jan 2014 14:48:57 +0800 > When trying to setup IPsec configuration on a 64bits host with > iproute2(32bits compiled), the intened xfrm policy and sa is > either deficit or wrong when kernel trying to parse user land > information. You can't make this change without breaking userspace. We'll have to translate the data structures somehow with a compat layer like we have for 32/64 bit compatability for system calls.