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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 366E1C3A5A0 for ; Wed, 21 Aug 2019 22:00:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0242320856 for ; Wed, 21 Aug 2019 22:00:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=paul-moore-com.20150623.gappssmtp.com header.i=@paul-moore-com.20150623.gappssmtp.com header.b="Wv33EjD8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728372AbfHUWAX (ORCPT ); Wed, 21 Aug 2019 18:00:23 -0400 Received: from mail-lj1-f169.google.com ([209.85.208.169]:41220 "EHLO mail-lj1-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728028AbfHUWAW (ORCPT ); Wed, 21 Aug 2019 18:00:22 -0400 Received: by mail-lj1-f169.google.com with SMTP id m24so3578175ljg.8 for ; Wed, 21 Aug 2019 15:00:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paul-moore-com.20150623.gappssmtp.com; s=20150623; h=mime-version:from:date:message-id:subject:to:cc; bh=UtLPTpmziN33YG4O4Q+fjJadZXwsjUnQKgfuJCB6e30=; b=Wv33EjD8K7IOFULJM+TWEQSabao5/oqiMjnkyfl+6HMstEOSL21yE53KCLaJPidc0q 9qQfmolCwTV5Ek7i6WXu9us2CqOrFlqzfDi6IbIeX5BjL9wLsQzc8V1hBpm3xAARaQf+ Oga/EyMhUtNF36RfXc/LeFK2p99pwVJ4Le5o3nDYYFhbiY2AjRaNZBXXGQjOAszNS5oK x5kqhOXZTj3hO9PsmEr0X8PmJhX7gtV4ye515mRAs+e0iC0iWEn9/nGXCvOoV2j/dlPU fC5cVbqPsWu16g8XTObBhnsp0ywWzJ2r/i6l7YtdXrK8fZoGJiWCgNeQgFNgLX0lPPv7 ASwA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=UtLPTpmziN33YG4O4Q+fjJadZXwsjUnQKgfuJCB6e30=; b=GVjZ8/FYmmeBu4grCp12g+l+zC3CjhjSJXtQob1wwCsZ6UnSfN31zAvfrNMUIxToB3 vNo9gjEFUk2TPSncXDrEydmmI8UWJWnW3o5gWFyOcnC74sE/lRS1ctD7/3Z4DwESc+g/ JB4S/TCi+Ergn+w7gAeJX6VmTAHmBCDDm4JUIWum0C3WrNQi0g9Off5kHB8Bs91TQprW Si0k3gr4Cv4pdDLL6X18NIeV1gSJ3Xifpw04hIYTUVd9EFGdxieCBnpXknKryj3TBRhA PsJPexVmC3o/MvseESnjhN6aaYhbGGu+f960+drJj2QzvNLmnjVkcmb1uUzV+BQO4Y29 uKpA== X-Gm-Message-State: APjAAAWNf4l/w/Exus7HsEmrwb3jY3CdvsIRT3whoR4xUs7w6q3YVF6Z +XRsJ3QPVDp+Zq8YqnC07yoXgpKQld77Qp/PGUPWhTNfRWvX X-Google-Smtp-Source: APXvYqzkHSMhD3XMQ8GKHBBdvLF/0nj7DXZcIfPjPF24ezy7vpBJXXOuH0d3+RQVZvlHi4Wx+J41C7uj7eWbUoJtCuA= X-Received: by 2002:a05:651c:1111:: with SMTP id d17mr12865350ljo.87.1566424820383; Wed, 21 Aug 2019 15:00:20 -0700 (PDT) MIME-Version: 1.0 From: Paul Moore Date: Wed, 21 Aug 2019 18:00:09 -0400 Message-ID: Subject: New skb extension for use by LSMs (skb "security blob")? To: netdev@vger.kernel.org Cc: linux-security-module@vger.kernel.org, selinux@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello netdev, I was just made aware of the skb extension work, and it looks very appealing from a LSM perspective. As some of you probably remember, we (the LSM folks) have wanted a proper security blob in the skb for quite some time, but netdev has been resistant to this idea thus far. If I were to propose a patchset to add a SKB_EXT_SECURITY skb extension (a single extension ID to be shared among the different LSMs), would that be something that netdev would consider merging, or is there still a philosophical objection to things like this? -- paul moore www.paul-moore.com