From patchwork Thu Apr 18 23:38:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Kicinski X-Patchwork-Id: 790396 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 95E4C54907; Thu, 18 Apr 2024 23:38:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713483530; cv=none; b=Kx/uoU40YvkaC9MZTRv9H7r+TZgDAk90L/XNgONsqquhZj4aTqXVDLgaKrLriF0DuRvWIuY8ko69T3CraBQrH035cDAknWgsdqAaOaHS9ekARye9ehLxqg/xMqoIIEYx2xPsQDT1KC5udE1PfScdpApV+ovGkpMEJMcwCV8H3Bg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713483530; c=relaxed/simple; bh=1GK/S6OPKI5H31805uG2C4stCPsSr4VBSkY5Bv4RpkQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=tWLrKDCfdDyu8JryWRBJ3SZrSGdGGZ2ExORZGM+X9CRNI7rwSXjZSj05sTsEoSnbuIfuEh1PiisXDJ3YuSOBEgoD+khtaWQ2DynKOiLIv+oxJBuQOrARfEMcRUlVNuC6aswZguduwMe+CKQVW0TNBYcxdJfOv8lPNZdRk5ElP+U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iibcZVH9; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iibcZVH9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9A6ECC113CC; Thu, 18 Apr 2024 23:38:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713483530; bh=1GK/S6OPKI5H31805uG2C4stCPsSr4VBSkY5Bv4RpkQ=; h=From:To:Cc:Subject:Date:From; b=iibcZVH9rUQz709UH0YQ8acb9OVO4TGU+JRl/qwtkv6nosQytnQvWEFwgaq5qJk+H xYzfyRKWaKTgIBP9bDWKnLcAratQis6Az1rfN1UZLvYkWEaqzLfL/vTXo3cLC2gU6d 1r/sxlnob4DAn3f0CPtGTmkjuxN2cusA7pWNdD9S0NyTYJBK6o0qbkndeVVNbIFYqq lX1GNazvbxEZbxzoe/WRRLbcyTtsEMRoZ8sk1EyzG/wPhwlHNchIbBwMz0qokd+lqu 8Rvyrk7ZNckuH8JS9qW/ZUY/52CWv4ZJNOClMiYmRjiSHiSpeD2aMJgTJ2H15yRLMy NiOg6KEay87oQ== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, shuah@kernel.org, petrm@nvidia.com, linux-kselftest@vger.kernel.org, willemdebruijn.kernel@gmail.com, Jakub Kicinski Subject: [PATCH net-next v4 0/7] selftests: drv-net: support testing with a remote system Date: Thu, 18 Apr 2024 16:38:37 -0700 Message-ID: <20240418233844.2762396-1-kuba@kernel.org> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi! Implement support for tests which require access to a remote system / endpoint which can generate traffic. This series concludes the "groundwork" for upstream driver tests. I wanted to support the three models which came up in discussions: - SW testing with netdevsim - "local" testing with two ports on the same system in a loopback - "remote" testing via SSH so there is a tiny bit of an abstraction which wraps up how "remote" commands are executed. Otherwise hopefully there's nothing surprising. I'm only adding a ping test. I had a bigger one written but I was worried we'll get into discussing the details of the test itself and how I chose to hack up netdevsim, instead of the test infra... So that test will be a follow up :) v4: - improve coding sytle of patch 5 - switch from netcat to socat (patch 6) - support exit_wait for bkg() in context manager - add require_XYZ() helpers (patch 7) - increase timeouts a little (1,3 -> 5 sec) v3: https://lore.kernel.org/all/20240417231146.2435572-1-kuba@kernel.org - first two patches are new - make Remote::cmd() return Popen() object (patch 3) - always operate on absolute paths (patch 3) - last two patches are new v2: https://lore.kernel.org/all/20240416004556.1618804-1-kuba@kernel.org - rename endpoint -> remote - use 2001:db8:: v6 prefix - add a note about persistent SSH connections - add the kernel config v1: https://lore.kernel.org/all/20240412233705.1066444-1-kuba@kernel.org Jakub Kicinski (7): selftests: drv-net: define endpoint structures selftests: drv-net: factor out parsing of the env selftests: drv-net: construct environment for running tests which require an endpoint selftests: drv-net: add a trivial ping test selftests: net: support matching cases by name prefix selftests: drv-net: add a TCP ping test case (and useful helpers) selftests: drv-net: add require_XYZ() helpers for validating env tools/testing/selftests/drivers/net/Makefile | 5 +- .../testing/selftests/drivers/net/README.rst | 33 ++++ .../selftests/drivers/net/lib/py/__init__.py | 1 + .../selftests/drivers/net/lib/py/env.py | 174 ++++++++++++++++-- .../selftests/drivers/net/lib/py/remote.py | 15 ++ .../drivers/net/lib/py/remote_netns.py | 21 +++ .../drivers/net/lib/py/remote_ssh.py | 39 ++++ tools/testing/selftests/drivers/net/ping.py | 54 ++++++ .../testing/selftests/net/lib/py/__init__.py | 1 + tools/testing/selftests/net/lib/py/ksft.py | 13 +- tools/testing/selftests/net/lib/py/netns.py | 31 ++++ tools/testing/selftests/net/lib/py/utils.py | 52 +++++- 12 files changed, 410 insertions(+), 29 deletions(-) create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote.py create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote_netns.py create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote_ssh.py create mode 100755 tools/testing/selftests/drivers/net/ping.py create mode 100644 tools/testing/selftests/net/lib/py/netns.py