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[2604:1380:4601:e00::3]) by mx.google.com with ESMTPS id s5-20020a170906c30500b00a31b755546asi612069ejz.488.2024.01.25.12.40.01 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jan 2024 12:40:01 -0800 (PST) Received-SPF: pass (google.com: domain of linux-nfs+bounces-1431-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) client-ip=2604:1380:4601:e00::3; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=SHPLynff; arc=pass (i=1 dkim=pass dkdomain=kernel.org); spf=pass (google.com: domain of linux-nfs+bounces-1431-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-nfs+bounces-1431-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id 2814D1F21BDB for ; Thu, 25 Jan 2024 20:40:01 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CF1911386B7; Thu, 25 Jan 2024 20:37:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="SHPLynff" X-Original-To: linux-nfs@vger.kernel.org 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 A72211386B6 for ; Thu, 25 Jan 2024 20:37:47 +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=1706215067; cv=none; b=gxCKOA2keAxW2I5ttgJdOQxcih2l2UcCtG/KJeJO/f24RtbV8L4XYShiVu7dHPP3ydvI3Dntrg23kKp+P1Fg4qfwVtKIg5AZPUbb0RgtGtwGI5jA+Cv+1IoPUyU2zAToZH3gRzy4yCw8sNAaXGHQGv+/cajiSa/mrTfC/JQofl0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706215067; c=relaxed/simple; bh=acACGnJvIgFBbcIrpNKZ4D6WlwDgzE9Tp2uyt+1HKSo=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=ZRycgi/IJKkoxrlfMzPYVjtLvq4g8homJIXAIxeENFL4ksCwhKQTidPu0hUiFii4QvnmtbtX2IGQeEqlXeRCozUi1lUCMDMirFhzg7H/Dq9Pq6UaVsuydFPXsQSDuHqsMHUHhbrXP9uW70E0LpG+o4FP+V682G1OjTxBWESr5Mw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SHPLynff; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1991C433F1; Thu, 25 Jan 2024 20:37:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706215067; bh=acACGnJvIgFBbcIrpNKZ4D6WlwDgzE9Tp2uyt+1HKSo=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=SHPLynfftiB4GpehbqpGEqIpqzkWWyhqpLl5gELJ7eFATZhMwx3NbO5uEZu7S/+wS YF04hEU+EeqdSDVvmG6S3zcSLSJxfWJxY74dDTGep+RtKAnLiq/y644oaGg8tOqO8C 6K4V0jrq8yh+IpuZyJhovyftDpkrZKZz/LCgFbsyHXvOEZzF2cUw9sn8OGK48NBGUP ckJ5CrRcfx6u17S+p0+u8zXgcJIrZA2F42sBVhswlmjABsNoutQVxqUPb9GVLzcMEZ JvyUOdF5yWO1I7ITOQYQ9Vo7+lOy+C/x1YssQ+Dy6w87xmCiCjA2xjPBMOMaziSmgf FRatff0pmAzOw== Message-ID: Subject: Re: Implement NFSv4 TLS support with /usr/bin/openssl s_client? From: Jeff Layton To: Dan Shelton , Linux NFS Mailing List Cc: Benjamin Coddington Date: Thu, 25 Jan 2024 15:37:45 -0500 In-Reply-To: References: Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; 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kZWuOsJdJQdmwlWC5L5ln9xgfr/4mOY38B0U= Content-Type: text/plain; charset="ISO-8859-15" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.3 (3.50.3-1.fc39) Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Thu, 2024-01-25 at 03:21 +0100, Dan Shelton wrote: > Hello! >=20 > Is it possible for a NFSv4 client to implement TLS support via > /usr/bin/openssl s_client? >=20 > /usr/bin/openssl s_client would do the connection, and a normal > libtirpc client would connect to the other side of s_client. >=20 > Does that work? >=20 > Dan Doubtful. RPC over TLS requires some cleartext setup before TLS is negotiated. At one time Ben Coddington had a proxy based on nginx that could handle the TLS negotiation, but I think that might have been based on an earlier draft of the spec. It would probably need some work to be brought up to the state of the RFC. --=20 Jeff Layton