From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1E4EC18E5B for ; Mon, 16 Mar 2020 08:42:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 82D62206B1 for ; Mon, 16 Mar 2020 08:42:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730132AbgCPImv (ORCPT ); Mon, 16 Mar 2020 04:42:51 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:40960 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730069AbgCPImv (ORCPT ); Mon, 16 Mar 2020 04:42:51 -0400 Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 2FCA914218234; Mon, 16 Mar 2020 01:42:51 -0700 (PDT) Date: Mon, 16 Mar 2020 01:42:47 -0700 (PDT) Message-Id: <20200316.014247.141724414124911729.davem@davemloft.net> To: mayflowerera@gmail.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 1/2] macsec: Support XPN frame handling - IEEE 802.1AEbw From: David Miller In-Reply-To: <20200309194702.117050-1-mayflowerera@gmail.com> References: <20200309194702.117050-1-mayflowerera@gmail.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 16 Mar 2020 01:42:51 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Era Mayflower Date: Mon, 9 Mar 2020 19:47:01 +0000 > Support extended packet number cipher suites (802.1AEbw) frames handling. > This does not include the needed netlink patches. > > * Added xpn boolean field to `struct macsec_secy`. > * Added ssci field to `struct_macsec_tx_sa` (802.1AE figure 10-5). > * Added ssci field to `struct_macsec_rx_sa` (802.1AE figure 10-5). > * Added salt field to `struct macsec_key` (802.1AE 10.7 NOTE 1). > * Created pn_t type for easy access to lower and upper halves. > * Created salt_t type for easy access to the "ssci" and "pn" parts. > * Created `macsec_fill_iv_xpn` function to create IV in XPN mode. > * Support in PN recovery and preliminary replay check in XPN mode. > > In addition, according to IEEE 802.1AEbw figure 10-5, the PN of incoming > frame can be 0 when XPN cipher suite is used, so fixed the function > `macsec_validate_skb` to fail on PN=0 only if XPN is off. > > Signed-off-by: Era Mayflower Applied.