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=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 3F399C2D0A8 for ; Sat, 26 Sep 2020 04:27:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E1A3320758 for ; Sat, 26 Sep 2020 04:27:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="eFt8y8YS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730020AbgIZE1B (ORCPT ); Sat, 26 Sep 2020 00:27:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42528 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725208AbgIZE1A (ORCPT ); Sat, 26 Sep 2020 00:27:00 -0400 Received: from mail-oi1-x243.google.com (mail-oi1-x243.google.com [IPv6:2607:f8b0:4864:20::243]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACA4DC0613CE for ; Fri, 25 Sep 2020 21:26:59 -0700 (PDT) Received: by mail-oi1-x243.google.com with SMTP id x69so5021660oia.8 for ; Fri, 25 Sep 2020 21:26:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:from:to:cc:date:message-id:user-agent:mime-version :content-transfer-encoding; bh=wWYHO9gA850tTcEE2d5sVOLFoekcrBikSrj3VJ6jQVA=; b=eFt8y8YSSkln6NfC8eXCFToHvyUnzdoCagCgg12edRgC0zcxIL5J0UhDqj01g5n+U1 IRDrbrtAysIodLHli/VRqp3+k7AXUgwOk119bZUaqVKmptCYDrAq90Lpgnkb/xJD48Gr N24IHcsPjI5JIBH5k3/UwAOih9BQ/AkF3eK0m/68NGo0UcVec7R+PuCFEEN2Ci5JDjUC 7P8cyET6hHxQJXNzpSyvlR2M/K09i3pd6rn/50S5cbr4fIhGe+3jWZ0dKCDxFVSbSWYc yhJvPDbT1TxfxxfaWXi1y+uw7KaMH9fX+kL+A4yHyhXbqwFOVb17oUPS0eV514+pPG4r eE4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:date:message-id:user-agent :mime-version:content-transfer-encoding; bh=wWYHO9gA850tTcEE2d5sVOLFoekcrBikSrj3VJ6jQVA=; b=e4HVqpMlZT/bsfcFHWhauf96n4B9H1Q/8eS2Z/urBefVvE9Mx9++VbqV5qA7uKtfPX 6mFF3VV6ZNubDBdY57eOPmP1D7QL0IHpkZOt+/UqBGkBeBYAc/Jcr44fKnvbrow1wQVQ pObh90A8LsAsCFmeV9lUOGatwwYLJFdaaA8/yX3xW3NVMEfthccm3lWOv+PRlcOViJSA 2q3/qiEbMh+qW6FI346eQ+gKubPWAp+ZbV7U+kyrpPmSSg3YZDX05Cjhodj0o3Yop5Cp QZX86tTtrJyi2ic29n1ieSRHZIGo4keNlJ3KGLTelXO1i+LJVdxOCeSrOeBwcY6JjW84 0SKA== X-Gm-Message-State: AOAM532arebNDTChDx4F32GbKLVR30wb2zSx9wt3Mq2E5PE//8AiIlF0 Cb4BqlDvZ9XsdFo+58LsdJSYhe9AydIO/Q== X-Google-Smtp-Source: ABdhPJzsr/yCs8R5Q7RkCemSA61DYDmO7SzPKFbpW+D231qGXX+wUqbc2/yitUau3tflkAX0zE187w== X-Received: by 2002:aca:c144:: with SMTP id r65mr453960oif.166.1601094419099; Fri, 25 Sep 2020 21:26:59 -0700 (PDT) Received: from [127.0.1.1] ([184.63.162.180]) by smtp.gmail.com with ESMTPSA id r62sm1095432oih.12.2020.09.25.21.26.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Sep 2020 21:26:58 -0700 (PDT) Subject: [bpf-next PATCH 0/2] Add skb_adjust_room() for SK_SKB From: John Fastabend To: ast@kernel.org, daniel@iogearbox.net Cc: netdev@vger.kernel.org, john.fastabend@gmail.com, jakub@cloudflare.com, lmb@cloudflare.com Date: Fri, 25 Sep 2020 21:26:41 -0700 Message-ID: <160109391820.6363.6475038352873960677.stgit@john-Precision-5820-Tower> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This implements the helper skb_adjust_room() for BPF_SKS_BK_STREAM_VERDICT programs so we can push/pop headers from the data on recieve. The obvious use case is to pop TLS headers of kTLS packets. The first patch implements the helper and the second updates test_sockmap to use it removing some case handling we had to do earlier to account for the TLS headers in the kTLS case. I have a couple more series to flush off my stack then I'll work on modernizing the test_sockmap tests themselves. It was created before global data and a few other nice things so its a bit more verbose than necessary. Thanks, John --- John Fastabend (2): bpf, sockmap: add skb_adjust_room to pop bytes off ingress payload bpf, sockmap: update selftests to use skb_adjust_room net/core/filter.c | 51 ++++++++++++++++++++ .../selftests/bpf/progs/test_sockmap_kern.h | 34 ++++++++++--- tools/testing/selftests/bpf/test_sockmap.c | 27 ++--------- 3 files changed, 82 insertions(+), 30 deletions(-) -- Signature