From patchwork Sat Apr 20 02:52:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Kicinski X-Patchwork-Id: 13636921 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 BB37D79F5; Sat, 20 Apr 2024 02:52:40 +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=1713581560; cv=none; b=DpRlm1teMMkSMKy91IfQbjFla0k7fBR3+Xjb5AFmI9QFeDuxmm2O261f8jN/ADUMOeSYSdQsCqI+aV/I875EpJ4dCeAu1w9C5a/tb3zqr9SVFV2Zck4rlPr80ilMcVx/JmDbNO83rIJh2x9//gtBC71tlbXnk/nvgo8ThgDd03g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713581560; c=relaxed/simple; bh=Ddgl4fer8XQqqIUUbAuPuEm3gp+8CbmSSS/skwlXGW8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=T70azMBWlfE3U2bbGwSoMvGGuWbQicX90saj5ueyRRYbhIqq/D4WzYoakLLSvC4GkWXwKRJ3hAEdIXYOxaEF9iIs0k5E/TzWXzOmkpaeXolo3SG8aX/6r+LALVIwjgiwH+a+C2Kcn5UbKYqAg0d35uiBuc6QJuso3QjhsnETFiw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Cr1Eg8QQ; 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="Cr1Eg8QQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DCD79C072AA; Sat, 20 Apr 2024 02:52:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713581560; bh=Ddgl4fer8XQqqIUUbAuPuEm3gp+8CbmSSS/skwlXGW8=; h=From:To:Cc:Subject:Date:From; b=Cr1Eg8QQidKUEV8s36/aGRcIbioeQmSqtsw7/HFSAG3rI1b0p2fCsWTOENXof0So6 Y32Vgi1Lb37W1BM5xiQaGWVr91pdq+FvNfpWvFPER1n9aOTHkelUH0UfP+yKrsD8yk RlZMWx6/TXG1TlPCmi+jE1yn0dUZYeEK2B6vhc1nFcGTmvLOMClwDkcqXpfX9fpk4i +NwBVFdE7rn4YVgWmmChZROrNzg1gmVJ1NmHyoZDJwUbPV/nAAYO9frV2vLnhwvq/k 0A8rmqgt+FZoafgtN5kRUDFLtwUZEmbqxOlKoxjFt2DIcMqEVRJn9NQh3OsdxPMOtC UuNPC8di9mIlw== 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 v5 0/7] selftests: drv-net: support testing with a remote system Date: Fri, 19 Apr 2024 19:52:30 -0700 Message-ID: <20240420025237.3309296-1-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 :) v5: - fix rand port generation, and wrap it in a helper in case the random thing proves to be flaky - reuseaddr - explicitly select the address family v4: https://lore.kernel.org/all/20240418233844.2762396-1-kuba@kernel.org - improve coding style 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 | 175 ++++++++++++++++-- .../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 | 51 +++++ .../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 | 60 +++++- 12 files changed, 416 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 Reviewed-by: Willem de Bruijn Tested-by: Willem de Bruijn