From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from BL0PR03CU003.outbound.protection.outlook.com (mail-eastusazon11022081.outbound.protection.outlook.com [52.101.53.81]) (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 C64743C1FDE for ; Wed, 21 Jan 2026 20:38:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.53.81 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769027891; cv=fail; b=Qr1rv534Up0dzEOKJyqk5ZY8R/ZPx3crFSyB6fOFh35m6L/ozpTw1Fy6mWpeEydzOBNUS8HLxNHsR2gSTqnYQ4UKUQY/2l23x7kns26EjF3nJtKMLXdFuGooa+8Lf5UFSdnc4/TAuK3XLa8LbRyE7qkklSjKqjl04sidcL9cQik= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769027891; c=relaxed/simple; bh=6YbXuHxXdciW8uNphY4mK53gX/mITiKOVpaYFoC2+4U=; h=From:To:Cc:Subject:Date:Message-ID:Content-Type:MIME-Version; b=WKrOyUh2JW4faSgxSgwrB8sW8Igt9+2zEmDAXR6NebY7uMYzrV7Dtoi3fk92RKyeFVMfo3XiMVv0zL3wtT3JlhKwawWPUvx+4rz30MysnmTAyCu8ddSjC1gtEKyAgcL7MA2wJ/Qm6T1xVQbF2xpEH4iZmXa8wXBCT0lfXFG2UzE= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=hammerspace.com; spf=pass smtp.mailfrom=hammerspace.com; dkim=pass (1024-bit key) header.d=hammerspace.com header.i=@hammerspace.com header.b=ersQsuJj; arc=fail smtp.client-ip=52.101.53.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=hammerspace.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=hammerspace.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=hammerspace.com header.i=@hammerspace.com header.b="ersQsuJj" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=wIgEgH4n/vbIv7FTtnOYWog8L5jtxgGI/iQNCfCp0+zYcsyS99+EH908cmYbJsT0K5UWMsDaniOB+aQ4Iv8LuvnxzQhSA3fAb/HIXRqfln4vM5wkRsbQXrXk5OcQTtxv7z88o98rTJaCA+8/7vVBmc3QBit1xcNBrnNyWY4kMDXfiMO6r6uqCFfpfO6psiW5MxyENCIUnVeMiWilwU1UBqE0WmKiKijt6fr80CPxU51m5e6EclohHKquboBoF1iDOifcd/eJaf5oKOssqk8gatKCWI4koqTxx6cVpIoeU9OpjAukeE6a14X3IVa6Q/Zpx8zTg8Rvz2u2MVw/3NWh8Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Cxg9fkU9TdUKKEZTJHQ4nV358k1epzCoX96Ttbq8az4=; b=uiLOevueRuS/h5RxPzRUUtKGcbg4HnWDSY5pfWGTFE8ynYcKdyHVY7LFmLap4tbzUgh0NOPKNdmDgjMHlFTxYjl2INW23YktjDAbK20+0855991YVy8COnSedtA2CMgrmeVcfaLq9at0R5x43KeWZXBhV0+S25pZP2MtOxaJ4di1SjikP7+V9n7Ng6uAD/lJmp8CXqXaxUEXrRVdT3bHFJW7nDFI+1OjEFw0fksE7fgPXTQscPn8pSonYtCbRKhWLepWU/A3CdpVvNlXa96jwXNPk3Iv9O1oaHKDdSaK/6c4jFDUpYFce84ad3p+prEUIAn9lHZYENNlDQ9IuAsSSg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=hammerspace.com; dmarc=pass action=none header.from=hammerspace.com; dkim=pass header.d=hammerspace.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hammerspace.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Cxg9fkU9TdUKKEZTJHQ4nV358k1epzCoX96Ttbq8az4=; b=ersQsuJjjUkc87/JyM5w36bGV17DZQhUVuAu/kgPLfayV8sJZOxXmZY/aNAMw0n7A8eRCadlmhnIjKfyFdR6nnKbR1tOeFm+7u11NYHSaaRpEz9Ph78oH/za8nle+3olYCGoTHh29KyNiQ/J1iNmxSH/Lz+rswo1J/O6p715YRg= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=hammerspace.com; Received: from DM8PR13MB5239.namprd13.prod.outlook.com (2603:10b6:5:314::5) by PH0PR13MB5422.namprd13.prod.outlook.com (2603:10b6:510:128::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9520.5; Wed, 21 Jan 2026 20:38:01 +0000 Received: from DM8PR13MB5239.namprd13.prod.outlook.com ([fe80::fa6e:7b5:d1ec:92f3]) by DM8PR13MB5239.namprd13.prod.outlook.com ([fe80::fa6e:7b5:d1ec:92f3%4]) with mapi id 15.20.9520.011; Wed, 21 Jan 2026 20:38:00 +0000 From: Benjamin Coddington To: Steve Dickson , Benjamin Coddington Cc: linux-nfs@vger.kernel.org, Chuck Lever , NeilBrown , Jeff Layton Subject: [PATCH v2 0/2] nfs-utils: signed filehandle support Date: Wed, 21 Jan 2026 15:37:54 -0500 Message-ID: X-Mailer: git-send-email 2.50.1 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: PH7PR17CA0039.namprd17.prod.outlook.com (2603:10b6:510:323::18) To DM8PR13MB5239.namprd13.prod.outlook.com (2603:10b6:5:314::5) Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM8PR13MB5239:EE_|PH0PR13MB5422:EE_ X-MS-Office365-Filtering-Correlation-Id: fe6d2ec9-19c9-4625-a0d3-08de592cf7e5 X-MS-Exchange-AtpMessageProperties: SA X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|376014|7142099003; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?RSlFW91g3NbW62F6NsxKNvH075q5BpzhuHPJGPDwhKVycbYbaQJxHRmobD5S?= =?us-ascii?Q?iC37k4+Fjjj8XzYYBbXJX3GCAGRS0IkNlPKltlltAjJnFUvPmHQqVx7ALee4?= =?us-ascii?Q?BWBeYUaZBstD2MxyM8lrmYd0p4wG01sA4fDfG046yq0MqD7e4773b209mvEK?= =?us-ascii?Q?av79kRNZNoPEeAlxM0xTKuWJVtFSrBIrbYDfOSGILnplEifUOJkRuo+ockzZ?= =?us-ascii?Q?xeC94bP/vaO0ywlPJ2EKSFTG9TtDV8WW1aAHY76smoQNev8bPJLWUDfVOKcq?= =?us-ascii?Q?r7nG07vi5A9ZDvvMoaAowYoKIwTIlGt1oHXQyM5L2U1vhkrmOiX+lohHyTeQ?= =?us-ascii?Q?VJ6eJ39MUSf3A8jA+efJ9H/ocNLZDCEZD95DPnEcrMkqJ7jq9WBw8tqrno/X?= =?us-ascii?Q?tCX/1gkM1H3Z9ESilB09HN9w/AS9Xtj0TpPJnRGPOyvdRdoT6ZoQ2ItYdMDC?= =?us-ascii?Q?sMF01isOmBWrpP0HCz6l7777B7dy/qWTndnvznrakdl9/TIuTn05p03AjqTm?= =?us-ascii?Q?672MkvIeUO+qqt+XtvpmJ2v+/sv5pdUdlY+1vuvJWiMEpJ6siENe+nbCkDGz?= =?us-ascii?Q?z7WxCKLiZFrj05DZD+6Vd8uH3OtGp6FfoMtgQFMX5uqgd70mk+mMIXsAJlMr?= =?us-ascii?Q?qZVXiKCp8GQqCRvAc29RiqsJgkz6v/lxprnQZwNDfji/JreZML9evt02r7SD?= =?us-ascii?Q?nox19IZ+JQUePIElFiP03rQ64zADDQMvVOjZrsjfi31e9DLY0bEOGI9lsiAZ?= =?us-ascii?Q?xwBNhFNrWbOOdN68XyFyH03EFAb/Gm4daRNxZqB/gStLVPJXJb4SkjPb0uCE?= =?us-ascii?Q?0LhmH7szQFp/+PjY0MAwIbyK8IYtlUEyHsMFK6472+yMHhxYd6i2U0g1W82E?= =?us-ascii?Q?2hDWkwyd/TIK/HBMjwjswsRBFLvr/gqBlJGB4Ym8ytc7R3d0J9Ndtzh8y9xN?= =?us-ascii?Q?LO21cHqyj1U+Ii9VY3hPJRT02/5MgaXBbikmuP8URa/IVOyB84AtLRV0Q3Dk?= =?us-ascii?Q?KMQeViiB9UEZJRwpMEggRuc5GCBcCDCr0Ggz1W8GhAu4cIyl7KJO9X/ICTT/?= =?us-ascii?Q?FpNtJgvY6MTCllnKhSsswAAOL2iKhlgMne049W+wHnusOJTkFovq5fd6NlUO?= =?us-ascii?Q?teM2XW3ApwlTfWvh1oSyaxs/spY5fnZ4YW8OQHJiNo7IY5YG5PoVhbSnCTk+?= =?us-ascii?Q?KI7tBn5FOLawRsueGv6RI2IEsQy8e0eFy86bER15WWtq8q9lX4JNBtVHZOPj?= =?us-ascii?Q?eWef0ZoyHVepZUg40Wg6RMTzaOV7Gw00cA1ijw6xbXjcrb+d08DGHBTDRmSd?= =?us-ascii?Q?aZkgBKJt5ggdlGfVpOvJOzyKD7TVeona1Mcy8mw+7WffWagbPI7Xgyfh7p6T?= =?us-ascii?Q?7Vcd7vjFKJte7U9UjjxfB5tmLqmRsKr14sONQiUVIyAVWowCxwWE1Rr6Hnax?= =?us-ascii?Q?/V6g9Zsfe9EUsFcW3cK//9Y3BjXT7/THEKglCe6Sg0A0QJJf2ne6Ap40/Wd1?= =?us-ascii?Q?vxJuOTOdXiPHCCOIO0IqvxeGa0qoPkpYHmbXAO2HgslrkEUwEZxVjy0ZPmq6?= =?us-ascii?Q?RKuQcscmHIeFHzk1oWc=3D?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DM8PR13MB5239.namprd13.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(366016)(376014)(7142099003);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?0tYgkEua4EdTvro/5XQCtjEKR6/qCrPdRLGnNcGEvxAkjotAwqgksG45GoeH?= =?us-ascii?Q?IcgeJkJnz46Jl7HR0CwEvIEnEbEUQpYXFyMMNe3C9EJZM7hLWZfrMyK9S4CV?= =?us-ascii?Q?+e3pLa99d9MrAvlDa5XgvDTuhykk/xO33Gptnr2XQn5mgfp0pm4TqxOFLqRl?= =?us-ascii?Q?9OcoZtqvODwWC4ez9widDHhDL2l1sYkX/RKKuAY7YOY14yiKDstm/syWIs0c?= =?us-ascii?Q?MTeK1A0aNCYM+kaGENsKA35b2WJd6Qn1Hwl9s8z2PkfMQct7EIoo9Dnx4lfH?= =?us-ascii?Q?CEskAudHINFtQeCQaTiszV10LdMsnZtp7Mwd/OQWZYAFm79OxiB8sPJFUHap?= =?us-ascii?Q?N81LqmPQBvMn6E6udpmnh8D2d6ykTWzC8zE7uPL+tBwqNETZlf1GU2J2pDfi?= =?us-ascii?Q?EkyfQkD4eL0WDESKKIYIoeRpcDeN8ps3CCldGWOQl1RknzVi6JASEx6S/6Ks?= =?us-ascii?Q?SlQoHMLfCvJRlgGdr/NXj5bfQvjWWn64LV3abypSlT04gEmvg4YumxOrf52Y?= =?us-ascii?Q?QJGibze+zdb6Aq2oirkER28b72Yo3b/IlT4U3/J8JKmScSCKt405uirlMFFT?= =?us-ascii?Q?4qF9EkZ0vFE6A/ENzfjN2CHK2kqy8xghUs13Tt0MTlhxWQM3cAWsAw9/towV?= =?us-ascii?Q?dfl+PvdLJ93K4Ogl9FGDE6sXq018fMxJ+TGLp+5JClhx2N9MFxCBxlev7JcP?= =?us-ascii?Q?Q4rsBTi9oBQEx1y53sm596CRYadtu0fz2gJ1zKHYx4UfwF18lhee7vTcPwCY?= =?us-ascii?Q?A8yBDRmlL+kuw24MSeNTnTQzW5yvwiTqfZ/ABn35er4QqdFUCZKK43u9lrWm?= =?us-ascii?Q?m9Qx7PmTr0vHClAdjVmZSoY5/1zYz+pTs1NIDwOaUo6Y4DocS3ki4C+yHlWt?= =?us-ascii?Q?/hrqaG7S1THHkHCklTJ94G2CVGPsgu+/pzLQsSVTxXv/la3QZj2gBlVDPlsa?= =?us-ascii?Q?UD366c+FHmo4nduuUiznP6N7klkR8HxZo8fHHtiMRtdACgsrxbilXyF4RJ0e?= =?us-ascii?Q?YTYpxQ1KHsl0NjxH6ltDmsP8lmeu+1+uOGxkgXafkj3/5MYJ9tJ9wHp9vEgq?= =?us-ascii?Q?W58vvqGx+pucjxx2WWL3TQJTPIsu+zmenPfjqyZB/eg7EHiwc45JtPT34WxJ?= =?us-ascii?Q?4n5b+iu6nGKdTTHNwEy4T050j4IkM2jqhQESo8G9VRHqKDRJIqMId4ovqgS2?= =?us-ascii?Q?3Omqpvocs4kg4YT1XAtHPl8Va1Qe33dF8m0uL0dXWV7GDcWdEh34+jNQrWo8?= =?us-ascii?Q?fRUdiXk5ORWcmROqumRrNnF02/WnmXG8/4cRam+jQYU6BIrMR5Ssa+UAAvON?= =?us-ascii?Q?+Cf2qJRFStSO8tjKnOuglMJ5/rZSf/T5f+6H851F5VPasnUmhjg/4euRulAY?= =?us-ascii?Q?VG8klVOOpA0buAOwbe8IZO7WrNz4uMclrxtOIXAO412RF6Ro1AD/d7QXqIGm?= =?us-ascii?Q?syBDYUw2Vej3hBxl2k803uO1Y9jO6d0FrxvN3cygNmFkRLEy3VcuNBwosd52?= =?us-ascii?Q?zqElyukm++goSfighA1g1YUZFtR15cf+iI60MP2setvobFeGzRFR9+FkrXVb?= =?us-ascii?Q?cHNd+o+QyYv2fcvq2S8cY/mWaIf7dliTQEYGGzqBUiAv1f4KpsD36XEqymmL?= =?us-ascii?Q?QdM3+Ikm50oLVPVuKUBoFa2+7P0BuyFAOe8h9l69kydCO6nabJPSoCduz5bM?= =?us-ascii?Q?0rqGhxzqnUBUyHkOmUtrMfFvOIswCrU+hfqfoXLdXAdnjvQh3h5+bDTdLWtA?= =?us-ascii?Q?a2p07LQr/l+4yX64NO1R7V01/jgi6Ww=3D?= X-OriginatorOrg: hammerspace.com X-MS-Exchange-CrossTenant-Network-Message-Id: fe6d2ec9-19c9-4625-a0d3-08de592cf7e5 X-MS-Exchange-CrossTenant-AuthSource: DM8PR13MB5239.namprd13.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Jan 2026 20:38:00.7382 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 0d4fed5c-3a70-46fe-9430-ece41741f59e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: Wu5olSG8ZLjpxoBt/jxL5u3toahI4DcKXgS2yVMFTYrMuBtb/vKr7zJbC7pZqZDXcrtlr2s6mBgIdyxEyjM10yd/X3a3N7H41wyayZFgeHA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR13MB5422 Here are two patches allowing userspace to set a secret key for kNFSD to sign filehandles, and also set the option to sign filehandles for an export. The secret key passed to the server is the first 128 bits of a sha1 hash of the contents of a file configured via the nfs.conf server section "fh_key_file". Exports that have the option "sign_fh" set will cause the server to use this key to append an 8-byte siphash of the filehandle onto each filehandle. This version of the userspace patches correspond with the v2 of the kernel changes which have been posted here: https://lore.kernel.org/linux-nfs/cover.1769026777.git.bcodding@hammerspace.com This work is based on a branch that includes Jeff Layton's patch for min-threads: https://lore.kernel.org/linux-nfs/20260112-minthreads-v1-1-30c5f4113720@kernel.org/ Comments and critique welcomed. Changes since v1: - fh_key hash is passed as an optional attr to threads verb - include missing hash_fh_key_file() function hunk - wording updates (thanks NeilBrown) Benjamin Coddington (2): exportfs: Add support for export option sign_fh nfsdctl/rpc.nfsd: Add support for passing encrypted filehandle key configure.ac | 4 +- nfs.conf | 1 + support/include/nfs/export.h | 2 +- support/include/nfslib.h | 2 + support/nfs/Makefile.am | 4 +- support/nfs/exports.c | 4 ++ support/nfs/fh_key_file.c | 80 ++++++++++++++++++++++++++++++++++++ systemd/nfs.conf.man | 1 + utils/exportfs/exportfs.c | 2 + utils/exportfs/exports.man | 9 ++++ utils/nfsd/nfsd.c | 16 +++++++- utils/nfsd/nfssvc.c | 26 ++++++++++++ utils/nfsd/nfssvc.h | 1 + utils/nfsdctl/nfsd_netlink.h | 2 + utils/nfsdctl/nfsdctl.c | 35 ++++++++++++++-- 15 files changed, 179 insertions(+), 10 deletions(-) create mode 100644 support/nfs/fh_key_file.c base-commit: 612e407c46b848932c32be00b835a7b5317e3d08 prerequisite-patch-id: cc4d768b1f6935b3c94ae87bd0389270717bc5b0 -- 2.50.1