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 01589C433FE for ; Thu, 27 Jan 2022 17:24:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237319AbiA0RYw (ORCPT ); Thu, 27 Jan 2022 12:24:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232315AbiA0RYv (ORCPT ); Thu, 27 Jan 2022 12:24:51 -0500 Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D6BFC06173B for ; Thu, 27 Jan 2022 09:24:51 -0800 (PST) Received: by mail-wr1-x436.google.com with SMTP id w11so6090328wra.4 for ; Thu, 27 Jan 2022 09:24:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cloudflare.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=fK+oJcKgMcWWWrq9i21ZgzQKrYXc3WUerqyecUfwfNk=; b=jr16Oeqj4M6JLMyVsipYEVvVIvded5FfOcE157uvxzOGZxzmRP7rqcBG3dDr81ekz/ sHAlPRKtfRvcgblGgpNm673V9YLy7Dw/ENUP7bnqdidi9Fz8GU+jrCqTs2PeSinI/32f lDca0Au5N4jWSqWgGXlsQsXFG6aSgywaF6gXI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=fK+oJcKgMcWWWrq9i21ZgzQKrYXc3WUerqyecUfwfNk=; b=XlvMYtZxJsTtsA2KuupIiDZAcEg24FOnJD07T2RppNMPGrJ1QxGXCRYSA6fhWHJC+z meYcvJ1bNKIv/J8Fk0PsJo6nNsJdQ9z3+KToW46SjylwzyHXYo+/pQiyFl6GyBKdV1/0 gVswmwy89XSjcX2Gawn39c+zURO3bzyNECpNecSVyCHAXJeDnzYJT69SAFuebHFrzbCJ rsLovk69hhrrzK5pUOmAEP9kFt5FTJvCMnb78xvBc7oDoXF1E9xIYbAjq8cPwmVmBxXC 1W2VxNrHTYS+0xjbJ5/sDYoGJMzWUzJ8zlVKdA93t3BOYWTh1FtgzXQyJofQ6VTe1Yl3 cYDQ== X-Gm-Message-State: AOAM532nteYv611Qo6KBK7LRx+Xlb2NpAodjt6oDA6y93izURYUtIIhr 2fjFH7L+K0HuaMUi4XUbYS3p2ow32dX2LQ== X-Google-Smtp-Source: ABdhPJz8mf34rI88UHVzNtKZTD75FOr4XOkhBAJyijwbCDSNNj+qrw51eCzG4JGmZAxB3m/KbIwXoA== X-Received: by 2002:a5d:6d05:: with SMTP id e5mr3779678wrq.398.1643304289766; Thu, 27 Jan 2022 09:24:49 -0800 (PST) Received: from cloudflare.com ([2a01:110f:4809:d800::e00]) by smtp.gmail.com with ESMTPSA id az16sm2420578wmb.15.2022.01.27.09.24.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jan 2022 09:24:49 -0800 (PST) From: Jakub Sitnicki To: bpf@vger.kernel.org Cc: netdev@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Menglong Dong , Martin KaFai Lau Subject: [PATCH bpf-next 0/2] Split bpf_sock dst_port field Date: Thu, 27 Jan 2022 18:24:46 +0100 Message-Id: <20220127172448.155686-1-jakub@cloudflare.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org This is a follow-up to discussion around the idea of making dst_port in struct bpf_sock a 16-bit field that happened in [1]. I have fleshed it out further: v1: - keep dst_field offset unchanged to prevent existing BPF program breakage (Martin) - allow 8-bit loads from dst_port[0] and [1] - add test coverage for the verifier and the context access converter [1] https://lore.kernel.org/bpf/87sftbobys.fsf@cloudflare.com/ Jakub Sitnicki (2): bpf: Make dst_port field in struct bpf_sock 16-bit wide selftests/bpf: Extend verifier and bpf_sock tests for dst_port loads include/uapi/linux/bpf.h | 3 +- net/core/filter.c | 9 ++- tools/include/uapi/linux/bpf.h | 3 +- .../selftests/bpf/prog_tests/sock_fields.c | 58 +++++++++---- .../selftests/bpf/progs/test_sock_fields.c | 41 ++++++++++ tools/testing/selftests/bpf/verifier/sock.c | 81 ++++++++++++++++++- 6 files changed, 172 insertions(+), 23 deletions(-) -- 2.31.1