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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2F1DAC6FD18 for ; Tue, 28 Mar 2023 13:22:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232303AbjC1NWG (ORCPT ); Tue, 28 Mar 2023 09:22:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231238AbjC1NWF (ORCPT ); Tue, 28 Mar 2023 09:22:05 -0400 Received: from mail-ed1-x52c.google.com (mail-ed1-x52c.google.com [IPv6:2a00:1450:4864:20::52c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 93D837285 for ; Tue, 28 Mar 2023 06:22:03 -0700 (PDT) Received: by mail-ed1-x52c.google.com with SMTP id ew6so49596975edb.7 for ; Tue, 28 Mar 2023 06:22:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1680009721; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=M3Gr5Je7guIiujdLrMxTqrEOz8T6Uy5IsES9KC1M1QM=; b=q1sHfFRKjcGVZMWMduc1bexx7ZdQ2irxm6DO9OHqhsoPe0mmrMWiPkham5lG1/IgCF MeogglgreGdR5B+ctQbSDGuVmqjd8sHUU3H3hbrcwwkzjoZlxd36R/8v4UrbUKNaKhri BadNyGhWYVYcrTb5zeV/NuntHJQTbnv2p/D55GTMqndS5ms/K2/h0f+FCcJbff4B2yba VT3LWoK11ChlkIb81GA10xomh/l1gMlrQFSSeKQnPeX3MjDFVvqKqfRR/22t5BJn4BFK 7Uer85NugORgAxowXMq5oElSUbGK0KAjMxf4rG/o91FQLXZtlWMjc61nOJ/8R6TRC3uG kj+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680009721; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=M3Gr5Je7guIiujdLrMxTqrEOz8T6Uy5IsES9KC1M1QM=; b=ADD6DelrlO0SHmSPZAgY6TeiMnhqb5A12dKcOq0xJ05kj0+FiGtoFVEnVLOzlW2zy0 at2VLU7BmwUP5L2Cjbd9xvcokW7HqzUluiSBJS11KtZXnawCL+pMOaVBcHNgNbgAypdv DDCtG/NlLvyUjUXlqph3FG/YTfKZ6Xey52qnprtbmaBzwbw+WKDv0BGlqmlXQGuVClDs IE7JVyEYK1I2MQ7XxIM3Y6wDAIgy2GwfPxdYRezOuLVLNI1uDSSV0vwWwa4Y/P/sgNBj Y2/R6U9NXVrv8MsnE0wVgxpjA2mtJCBfNTNc8ICPTo7mqFy+UiOU98GNTqDjYx9hxiy3 ixoQ== X-Gm-Message-State: AAQBX9fCnpIIUzIGg/ZCr5Y3RXEhesKCINWwYIw47ElKbW1TqauOUZVa KOrvzJvgePVGqCY7aLCt/70WZU4TBvs2fWw3xe5+Vg== X-Google-Smtp-Source: AKy350alTuksoi33ATq8sJXMQyf+ozli/6xoOPKDV2GeINZxvQHBxOroi5lQ8tNu8t5K/7IH9jQuhA== X-Received: by 2002:a17:906:3e0f:b0:92b:69cd:34c7 with SMTP id k15-20020a1709063e0f00b0092b69cd34c7mr15846583eji.40.1680009721745; Tue, 28 Mar 2023 06:22:01 -0700 (PDT) Received: from localhost.localdomain ([45.35.56.2]) by smtp.gmail.com with ESMTPSA id h19-20020a1709070b1300b008ec4333fd65sm15240170ejl.188.2023.03.28.06.21.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Mar 2023 06:22:01 -0700 (PDT) From: Yixin Shen To: bpf@vger.kernel.org Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@kernel.org, song@kernel.org, yhs@fb.com, bobankhshen@gmail.com Subject: [PATCH 0/2] Allow BPF TCP CCs to write app_limited Date: Tue, 28 Mar 2023 13:20:33 +0000 Message-Id: <20230328132035.50839-1-bobankhshen@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org This series allow BPF TCP CCs to write app_limited of struct tcp_sock. A built-in CC or one from a kernel module is already able to write to app_limited of struct tcp_sock. Until now, a BPF CC doesn't have write access to this member of struct tcp_sock. Yixin Shen (2): bpf: allow a TCP CC to write app_limited selftests/bpf: test a BPF CC writing app_limited net/ipv4/bpf_tcp_ca.c | 3 + .../selftests/bpf/prog_tests/bpf_tcp_ca.c | 19 +++++ .../bpf/progs/tcp_ca_write_app_limited.c | 71 +++++++++++++++++++ 3 files changed, 93 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/tcp_ca_write_app_limited.c -- 2.25.1