From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yx1-f49.google.com (mail-yx1-f49.google.com [74.125.224.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C5CE5435A84 for ; Thu, 8 Oct 2026 20:58:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.224.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791493086; cv=none; b=BtoiQxVpoLt5BCsyaj0e5aAJPi2s8KUjFFuRp2NQg4zP7J3LFIsZzkjirBIM3ME/aKiTfLPzsoim113CAW6NttZqtUHlGxhS91GPsOzhtmzG3dvOG2bD8H6B+RySEM9P/lmThfySts4ML7uLeHOllGs4D3P4B/TA+tuu44Ktk1c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791493086; c=relaxed/simple; bh=vpbeEaPR3E1pmaT/xNDC5hjULFUimCv8YKxCMpWM/dg=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=ZTAT6V50K+tTpOhJElvTix9ZwTIczSS30XhKfLcSv8Qh3tLuKCqrch7u3zWqb2FlDZWXmhVlUpx4g74zlpROFszoA+/TNp2izCELLh1YIVGSW1iesvdQSdI0VIhCwpx2Ie5H9y81E7+d14WEXunyvIT+UVV5e0mn5BdWsITpqm8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=amutable.com; spf=pass smtp.mailfrom=amutable.com; dkim=pass (2048-bit key) header.d=amutable-com.20251104.gappssmtp.com header.i=@amutable-com.20251104.gappssmtp.com header.b=ZGQjSkiv; arc=none smtp.client-ip=74.125.224.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=amutable.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amutable.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=amutable-com.20251104.gappssmtp.com header.i=@amutable-com.20251104.gappssmtp.com header.b="ZGQjSkiv" Received: by mail-yx1-f49.google.com with SMTP id 956f58d0204a3-6711f05fb14so3807791d50.2 for ; Thu, 08 Oct 2026 13:58:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amutable-com.20251104.gappssmtp.com; s=20251104; t=1791493083; x=1792097883; darn=vger.kernel.org; h=cc:to:content-transfer-encoding:content-type:mime-version :message-id:date:subject:from:from:to:cc:subject:date:message-id :reply-to:content-type; bh=V0S61SflNz3PvfgcGBGx11GkE7hBo5diSyO3i89hlIg=; b=ZGQjSkiv2AEUSaNPDRvhadrbCMs1ALgftpyqaSsdg83snUiUpmwdtkPBHcPjXcMSW5 WTxrlWiKiSu+EiohigdEJyvDyhVbn64MLu/fV8wqp16F9oO2eu3g6wku9vB9EbmI0EB2 LB0WiT2LDRLnb7pQca7cTWOuOr3HtS8ca1rVms1p3iMuRVnxHkLTRYX3M3TWpvURtRSj eBE8oMrgkHViifnMrhbObPdyBF9FhNEDWhglMesj5txF1bXZB9bHgf9B+uyEAXeKEaH8 Mq4q1kDoBNvoY68r5QfLqMIsyxdPRH8aGDwENlYI12C3ehEf5R+UOFa5poKnY/LbpfB0 fynA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791493083; x=1792097883; h=cc:to:content-transfer-encoding:content-type:mime-version :message-id:date:subject:from:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to:content-type; bh=V0S61SflNz3PvfgcGBGx11GkE7hBo5diSyO3i89hlIg=; b=ANCZ649+R90dR7Jr/wCO+QxLeGviAxv2/Qo+m+ZHDa6iOnZ3cyB/wfYEqv3mRjb5fu PmbDpT4m2fEqNV4rMNSFpwkSxcXrCWxmGWNY4WL8QhRKoqdWMXIr2kicqq0xyKnbOsT2 92sfLxoNR1MtM+AZIBVKZDj/pSX6jvIha9BVDzX+lcrrt85i3y2Ooqhpltz39mE/ADi2 qEKBPPDyx4OGrtb0ACXlHKCKjT9hPNvyL/m1lUQABJKE7UUkPhCrEhdhhUsVXq5hmHj3 V4t+DPM5lGoCoP8J1UVFwgLuF+s7iX0qcqgs9r64H9ITRwnnvH4q/PTrve2O2L7+QcIH uJ7A== X-Forwarded-Encrypted: i=1; AKwUvByi2bPaqj2qOcJXsX0uN0OSSiAEgjFTeMFv4cTy8npPQbca9cLF2cEH+1SSUJMlFlM3jnyX+VNHtn6JYwI=@vger.kernel.org X-Gm-Message-State: AFq9FYLPzpDdew1JPBNOx6/Sm2mBu/y0tj6+4CGlmognURxpwPtRfB/1 MmHnDYzvTj3gdHWjtDplFHHqgxBwq4W2OLmgvtPSOW6NHr20Fnp5pkqtFquyBjCNg9ho X-Gm-Gg: AYBFou28ITRUoCOJMGiKR6ZgF2teAglxBTnnPp7aTdrVoNhkBjGjIcyHHpqgPtIOz+s JUSZlUvFC7c8bBuNkseQPmww0jaO74aeAdfMpeY5XizOq8EbQEcFcs+JCno/GQ88N9+QT3Ll/+M rVFTLOLsVswrnrv2YIjhYnhuhuq8DgeJVM5mRdcVk7AjkpZneBZsaO8F9R5tiurdfqKteDzRNBr D0QdYD3ywr+lFIr4UftkFEm2igvbVD24YiDmjCDMkNOHhBhcAD9h6y0xPtrld5YSoF5l82ABO4G 5+eoH74S5SO4EvTS2eyBtVuUyBnnWN4fkcuLXjJb14AwmLeOlpuWrQR2LWAD60WHRsubtD9cPlp X7G/MOqkpsGWVq63HXq1Fto8crVSFqcmOJS7X9QlCG7uSOpDSemDsjkNWrCRSJhbBoU5B0/Qkyn 6heGkjJxlqZZBZTHc3ekBj79zUts1w8HiDQWGxnD4A1591OQrdNHVmpduZHBq49sFXpsKyXg7iZ xbQCNQ1+bZfb9L/NiFKISl8U/cP0Re48Moz5u4yfUNnBuOLOyzP9rBE X-Received: by 2002:a05:690e:d06:b0:678:4671:d9d1 with SMTP id 956f58d0204a3-679360087aamr34732d50.21.1791493083618; Thu, 08 Oct 2026 13:58:03 -0700 (PDT) Received: from [192.168.1.110] (104-53-165-62.lightspeed.stlsmo.sbcglobal.net. [104.53.165.62]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-67935707401sm78814d50.24.2026.10.08.13.58.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Oct 2026 13:58:03 -0700 (PDT) From: Andrew Halaney Subject: [PATCH bpf-next v2 0/3] keys: Add well known IDs for fs-verity/dm-verity keys Date: Thu, 08 Oct 2026 15:57:34 -0500 Message-Id: <20261008-ajhalaney-dmverity-key-identifier-v2-0-008456d189cb@amutable.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/5WNQQ6CMBBFr0JmbU1bsIor72FYtHSQUSikrQ2Ec HcbbuDy5eX/t0FATxjgXmzgMVGgyWWQpwLaXrsXMrKZQXKpeC0qpt+9HrTDldkx5W1c2ScDWXS ROkLPKnG7GiXL0uAF8s/ssaPlaDzBzB1zuERosukpxMmvRzyJw//RSYJxxkUtpW1FqZR+6PEbt Rnw3E4jNPu+/wBcIMGP3wAAAA== X-Change-ID: 20260914-ajhalaney-dmverity-key-identifier-4187b6233be5 To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Benjamin Marzinski , David Howells , Jarkko Sakkinen , Paul Moore , James Morris , "Serge E. Hallyn" , Eric Biggers , "Theodore Y. Ts'o" , Jonathan Corbet , Shuah Khan , Randy Dunlap Cc: dm-devel@lists.linux.dev, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-security-module@vger.kernel.org, bpf@vger.kernel.org, fsverity@lists.linux.dev, linux-doc@vger.kernel.org, Andrew Halaney , "Christian Brauner (Amutable)" X-Mailer: b4 0.14.3 This more or less follows the bpf keyring approach, allowing userspace to easily find the keys instead of having to parse /proc/keys. Signed-off-by: Andrew Halaney --- Changes in v2: - Rebased / target bpf-next/for-next since 264d8fd2794f ("bpf, keys: Add a bpf keyring for program signature validation") only exists there. - Grabbed Reviewed-by trailers. - Link to v1: https://lore.kernel.org/r/20260914-ajhalaney-dmverity-key-identifier-v1-0-01922dc1366a@amutable.com --- Andrew Halaney (3): keys: add KEY_SPEC_DM_VERITY_KEYRING keys: add KEY_SPEC_FS_VERITY_KEYRING Documentation: keys: document IDs added since KEY_SPEC_REQKEY_AUTH_KEY Documentation/security/keys/core.rst | 13 ++++++++ drivers/md/dm-verity-verify-sig.c | 3 ++ fs/verity/signature.c | 2 ++ include/linux/key.h | 2 ++ include/uapi/linux/keyctl.h | 2 ++ security/keys/process_keys.c | 58 ++++++++++++++++++++++++++++++++++++ 6 files changed, 80 insertions(+) --- base-commit: e1d84a37cba984388988d2f1ddc84561413f0db2 change-id: 20260914-ajhalaney-dmverity-key-identifier-4187b6233be5 Best regards, -- Andrew Halaney