From nobody Sat Sep 26 21:59:44 2026 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 4CA2D2D9EED; Sat, 29 Aug 2026 13:09:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788008984; cv=none; b=qMKg9dqDYA3H4p0o/C30jeW8/8XCqNAPHkHE2mMKolJsKht9ltNGUBU4Yy9oNLSAIzPSnraNEXpUHmYTuN6fx+yEgmBkgRmP5Fq77I3Xy0pJN4n1guSYb6DrvkO3SqSbqf1G8PgYhDzDG/QCjFWwq08OFyQ8pCmWKeuGmgezio4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788008984; c=relaxed/simple; bh=1wJSA9j6KdEmGRo/uw/KfANMeWEX5Jtmk7BbYsOHZp4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=OX176Ao/6A+zgqoY4+HrqwdtGpjgMc/72yDhm2+8DRSA5E9qPj3lCFzQlx4J57CSHU0n7pJHWJfx0ek+oEctVVF+WUSR7VJ1zrlbKQ9aiLeaH+NPtqab4cKn7FpqpZKM/pg8dS/8lTDFPXypJgcMzEzmv16syLkR8RShSzsBoJY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=iZ8wySrU; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="iZ8wySrU" Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67TBWxag3021298; Sat, 29 Aug 2026 13:09:30 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:message-id:mime-version :subject:to; s=pp1; bh=5NaYmaIS33u3fTYeiTrbea/+sK1dh/f5UkJi16FEZ BI=; b=iZ8wySrU0xqD9KgaAS3pe3xNkclPOSKa/T1TVxyFv35YMJU4o5TA5TnaN AG1sj2ECYD1S+pkY9mMMiSnEFVrzoW/S1NwqCytSx8L+w3JspyJEVy4HPLbXwqNs h8KRImzmUPDZrqoQYsimdTLb7Vkz+Q/jq5dCqJus76DTM6vJ6jU1GiphEKP4SsMI gPAS+Vpqjd27QasYsh9TWlbsuysHs6FBqhhZxA3ZJFgToMf2eotl4q+cduBAbmLY KHctVGMlZevxabCLtkqq/yDSBezr3TzTYW7xTyUxzcqAu5kbnqewd+/XjomjA/NU MFz11qniPWG0p5x70UoaC7dmH78JQ== Received: from ppma22.wdc07v.mail.ibm.com (5c.69.3da9.ip4.static.sl-reverse.com [169.61.105.92]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4gbq3qscn3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 29 Aug 2026 13:09:30 +0000 (GMT) Received: from pps.filterd (ppma22.wdc07v.mail.ibm.com [127.0.0.1]) by ppma22.wdc07v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 67TCuLNs013516; Sat, 29 Aug 2026 13:09:28 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma22.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4g7pfwu4ka-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 29 Aug 2026 13:09:28 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 67TD9ORY37618016 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 29 Aug 2026 13:09:24 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7FE222004D; Sat, 29 Aug 2026 13:09:24 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EEC3B2004B; Sat, 29 Aug 2026 13:09:19 +0000 (GMT) Received: from li-fc74f8cc-3279-11b2-a85c-ef5828687581.ibm.com (unknown [9.67.101.99]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Sat, 29 Aug 2026 13:09:19 +0000 (GMT) From: Srish Srinivasan To: linux-integrity@vger.kernel.org, keyrings@vger.kernel.org Cc: James.Bottomley@HansenPartnership.com, stefanb@linux.ibm.com, jarkko@kernel.org, zohar@linux.ibm.com, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, nayna@linux.ibm.com, rnsastry@linux.ibm.com, sudhakar@linux.ibm.com, ssrish@linux.ibm.com Subject: [PATCH v4] keys/trusted_keys: move TPM-specific fields into trusted_tpm_options Date: Sat, 29 Aug 2026 18:39:17 +0530 Message-ID: <20260829130917.699516-1-ssrish@linux.ibm.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=EIc2FVZC c=1 sm=1 tr=0 ts=6a92da0a cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=l88gKiHFao-nr1m3x7IA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI5MDExMiBTYWx0ZWRfX0u9v+1IJksST /USYlwpVUM9qXREztVy0aCWuA+3Qouk6w1bJFQKFQPmUqvP96nf253xy2XuU5FJE1oWltZ2BlDR WJ9TP9mh2K5x71V7xieCxnj4/UxGO6P8uMattq3jC5M0QRZpZH+aWTccd+ECWkhgGK3tgFMSHYT trNyDSOnqxMG7zEWmZ66oqVJI69jTioBE8WS7eGW0RliOtlsfY7clOTKU+w8NHqXmkcT+65YtgB L/dIjPT6g7K5FrMELBJ2vffLjSqYqsUpkcJBeMqC+shmxdwLDTvmYEl+lYL39hCanDULnlFvcfs U/N3lh38jxLcvyF2A8mkJGi6rqAsoySFQ+5XHOZvhfBYcpKpuvwbbdY5kXPfdx5gXllLlOZNDQp /WjslzFXeAbimm0okFwlworNK3NflxwpZxaG+DNsbqQtRy2NfcDaFvbGZZNsECALIkterAr4s3J Ya+KEaer7D5YYTzzlEg== X-Proofpoint-GUID: yeN0pZV2FbBiwxYm8fXVlL3jZVRALUyW X-Proofpoint-ORIG-GUID: yeN0pZV2FbBiwxYm8fXVlL3jZVRALUyW X-Proofpoint-Spam-Info: AW1haW4tMjYwODI5MDExMiBTYWx0ZWRfX5yjuF8gkC1Td JAn6+iphWjJNGV9kbNFOaFhHuCe+DmhN9h3ddFhocvWCqOMoVFV1dzmklYbHTTPCKE5OOJtJVGV cS8t//zB9CX2kSf7rBRaYCYTJ9UZ4RY= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-29_03,2026-08-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 suspectscore=0 priorityscore=1501 clxscore=1015 phishscore=0 spamscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608290112 Content-Type: text/plain; charset="utf-8" The trusted_key_options struct contains TPM-specific fields (keyhandle, keyauth, blobauth_len, blobauth, pcrinfo_len, pcrinfo, pcrlock, hash, policydigest_len, policydigest, and policyhandle). This leads to the accumulation of backend-specific fields in the generic options structure. Define a trusted_tpm_options structure and move the TPM-specific fields there. Store a pointer to trusted_tpm_options in the private member of trusted_key_options. No functional change intended. Signed-off-by: Srish Srinivasan Reviewed-by: Stefan Berger --- Changelog: v4: - Rebased onto mainline after tpm-buf memory-safe allocation changes were merged - Resolved the resulting merge conflicts v3: - Exclude the preparatory clean up patch as the problem has been addressed in commit 9ec4175a30eb ("KEYS: trusted: Debugging as a feature") v2: - Exclude the bug-fix patch as it has already been applied to 6.19-rc7 - Rename instances of trusted_tpm_options from tpm_opts to private - Use pr_debug and KERN_DEBUG for logging debug messages (preparatory cle= an up patch) - Address other minor comments from Jarkko include/keys/trusted-type.h | 11 --- include/keys/trusted_tpm.h | 14 ++++ security/keys/trusted-keys/trusted_tpm1.c | 96 ++++++++++++++--------- security/keys/trusted-keys/trusted_tpm2.c | 50 ++++++------ 4 files changed, 102 insertions(+), 69 deletions(-) diff --git a/include/keys/trusted-type.h b/include/keys/trusted-type.h index 9f9940482da4..3db61b57cf73 100644 --- a/include/keys/trusted-type.h +++ b/include/keys/trusted-type.h @@ -39,17 +39,6 @@ struct trusted_key_payload { =20 struct trusted_key_options { uint16_t keytype; - uint32_t keyhandle; - unsigned char keyauth[TPM_DIGEST_SIZE]; - uint32_t blobauth_len; - unsigned char blobauth[TPM_DIGEST_SIZE]; - uint32_t pcrinfo_len; - unsigned char pcrinfo[MAX_PCRINFO_SIZE]; - int pcrlock; - uint32_t hash; - uint32_t policydigest_len; - unsigned char policydigest[MAX_DIGEST_SIZE]; - uint32_t policyhandle; void *private; }; =20 diff --git a/include/keys/trusted_tpm.h b/include/keys/trusted_tpm.h index 3a0fa3bc8454..98d638d13ecb 100644 --- a/include/keys/trusted_tpm.h +++ b/include/keys/trusted_tpm.h @@ -6,6 +6,20 @@ =20 extern struct trusted_key_ops trusted_key_tpm_ops; =20 +struct trusted_tpm_options { + uint32_t keyhandle; + unsigned char keyauth[TPM_DIGEST_SIZE]; + uint32_t blobauth_len; + unsigned char blobauth[TPM_DIGEST_SIZE]; + uint32_t pcrinfo_len; + unsigned char pcrinfo[MAX_PCRINFO_SIZE]; + int pcrlock; + uint32_t hash; + uint32_t policydigest_len; + unsigned char policydigest[MAX_DIGEST_SIZE]; + uint32_t policyhandle; +}; + int tpm2_seal_trusted(struct tpm_chip *chip, struct trusted_key_payload *payload, struct trusted_key_options *options); diff --git a/security/keys/trusted-keys/trusted_tpm1.c b/security/keys/trus= ted-keys/trusted_tpm1.c index bf0bf7f36970..14d005e76a1c 100644 --- a/security/keys/trusted-keys/trusted_tpm1.c +++ b/security/keys/trusted-keys/trusted_tpm1.c @@ -48,15 +48,17 @@ enum { #ifdef CONFIG_TRUSTED_KEYS_DEBUG static inline void dump_options(struct trusted_key_options *o) { + struct trusted_tpm_options *private =3D o->private; + if (!trusted_debug) return; =20 pr_debug("sealing key type %d\n", o->keytype); - pr_debug("sealing key handle %0X\n", o->keyhandle); - pr_debug("pcrlock %d\n", o->pcrlock); - pr_debug("pcrinfo %d\n", o->pcrinfo_len); + pr_debug("sealing key handle %0X\n", private->keyhandle); + pr_debug("pcrlock %d\n", private->pcrlock); + pr_debug("pcrinfo %d\n", private->pcrinfo_len); print_hex_dump_debug("pcrinfo ", DUMP_PREFIX_NONE, - 16, 1, o->pcrinfo, o->pcrinfo_len, 0); + 16, 1, private->pcrinfo, private->pcrinfo_len, 0); } =20 static inline void dump_sess(struct osapsess *s) @@ -626,6 +628,7 @@ static int tpm_unseal(struct tpm_buf *tb, static int key_seal(struct trusted_key_payload *p, struct trusted_key_options *o) { + struct trusted_tpm_options *private =3D o->private; int ret; =20 struct tpm_buf *tb __free(kfree) =3D kzalloc(TPM_BUFSIZE, GFP_KERNEL); @@ -637,9 +640,10 @@ static int key_seal(struct trusted_key_payload *p, /* include migratable flag at end of sealed key */ p->key[p->key_len] =3D p->migratable; =20 - ret =3D tpm_seal(tb, o->keytype, o->keyhandle, o->keyauth, + ret =3D tpm_seal(tb, o->keytype, private->keyhandle, private->keyauth, p->key, p->key_len + 1, p->blob, &p->blob_len, - o->blobauth, o->pcrinfo, o->pcrinfo_len); + private->blobauth, private->pcrinfo, + private->pcrinfo_len); if (ret < 0) pr_info("srkseal failed (%d)\n", ret); =20 @@ -652,6 +656,7 @@ static int key_seal(struct trusted_key_payload *p, static int key_unseal(struct trusted_key_payload *p, struct trusted_key_options *o) { + struct trusted_tpm_options *private =3D o->private; int ret; =20 struct tpm_buf *tb __free(kfree) =3D kzalloc(TPM_BUFSIZE, GFP_KERNEL); @@ -660,8 +665,8 @@ static int key_unseal(struct trusted_key_payload *p, =20 tpm_buf_init(tb, TPM_BUFSIZE); =20 - ret =3D tpm_unseal(tb, o->keyhandle, o->keyauth, p->blob, p->blob_len, - o->blobauth, p->key, &p->key_len); + ret =3D tpm_unseal(tb, private->keyhandle, private->keyauth, p->blob, + p->blob_len, private->blobauth, p->key, &p->key_len); if (ret < 0) pr_info("srkunseal failed (%d)\n", ret); else @@ -697,6 +702,7 @@ static const match_table_t key_tokens =3D { static int getoptions(char *c, struct trusted_key_payload *pay, struct trusted_key_options *opt) { + struct trusted_tpm_options *private =3D opt->private; substring_t args[MAX_OPT_ARGS]; char *p =3D c; int token; @@ -712,7 +718,7 @@ static int getoptions(char *c, struct trusted_key_paylo= ad *pay, if (tpm2 < 0) return tpm2; =20 - opt->hash =3D tpm2 ? HASH_ALGO_SHA256 : HASH_ALGO_SHA1; + private->hash =3D tpm2 ? HASH_ALGO_SHA256 : HASH_ALGO_SHA1; =20 if (!c) return 0; @@ -726,11 +732,11 @@ static int getoptions(char *c, struct trusted_key_pay= load *pay, =20 switch (token) { case Opt_pcrinfo: - opt->pcrinfo_len =3D strlen(args[0].from) / 2; - if (opt->pcrinfo_len > MAX_PCRINFO_SIZE) + private->pcrinfo_len =3D strlen(args[0].from) / 2; + if (private->pcrinfo_len > MAX_PCRINFO_SIZE) return -EINVAL; - res =3D hex2bin(opt->pcrinfo, args[0].from, - opt->pcrinfo_len); + res =3D hex2bin(private->pcrinfo, args[0].from, + private->pcrinfo_len); if (res < 0) return -EINVAL; break; @@ -739,12 +745,12 @@ static int getoptions(char *c, struct trusted_key_pay= load *pay, if (res < 0) return -EINVAL; opt->keytype =3D SEAL_keytype; - opt->keyhandle =3D handle; + private->keyhandle =3D handle; break; case Opt_keyauth: if (strlen(args[0].from) !=3D 2 * SHA1_DIGEST_SIZE) return -EINVAL; - res =3D hex2bin(opt->keyauth, args[0].from, + res =3D hex2bin(private->keyauth, args[0].from, SHA1_DIGEST_SIZE); if (res < 0) return -EINVAL; @@ -755,21 +761,23 @@ static int getoptions(char *c, struct trusted_key_pay= load *pay, * hex strings. TPM 2.0 authorizations are simple * passwords (although it can take a hash as well) */ - opt->blobauth_len =3D strlen(args[0].from); + private->blobauth_len =3D strlen(args[0].from); =20 - if (opt->blobauth_len =3D=3D 2 * TPM_DIGEST_SIZE) { - res =3D hex2bin(opt->blobauth, args[0].from, + if (private->blobauth_len =3D=3D 2 * TPM_DIGEST_SIZE) { + res =3D hex2bin(private->blobauth, args[0].from, TPM_DIGEST_SIZE); if (res < 0) return -EINVAL; =20 - opt->blobauth_len =3D TPM_DIGEST_SIZE; + private->blobauth_len =3D TPM_DIGEST_SIZE; break; } =20 - if (tpm2 && opt->blobauth_len <=3D sizeof(opt->blobauth)) { - memcpy(opt->blobauth, args[0].from, - opt->blobauth_len); + if (tpm2 && + private->blobauth_len <=3D + sizeof(private->blobauth)) { + memcpy(private->blobauth, args[0].from, + private->blobauth_len); break; } =20 @@ -787,14 +795,14 @@ static int getoptions(char *c, struct trusted_key_pay= load *pay, res =3D kstrtoul(args[0].from, 10, &lock); if (res < 0) return -EINVAL; - opt->pcrlock =3D lock; + private->pcrlock =3D lock; break; case Opt_hash: if (test_bit(Opt_policydigest, &token_mask)) return -EINVAL; for (i =3D 0; i < HASH_ALGO__LAST; i++) { if (!strcmp(args[0].from, hash_algo_name[i])) { - opt->hash =3D i; + private->hash =3D i; break; } } @@ -806,14 +814,14 @@ static int getoptions(char *c, struct trusted_key_pay= load *pay, } break; case Opt_policydigest: - digest_len =3D hash_digest_size[opt->hash]; + digest_len =3D hash_digest_size[private->hash]; if (!tpm2 || strlen(args[0].from) !=3D (2 * digest_len)) return -EINVAL; - res =3D hex2bin(opt->policydigest, args[0].from, + res =3D hex2bin(private->policydigest, args[0].from, digest_len); if (res < 0) return -EINVAL; - opt->policydigest_len =3D digest_len; + private->policydigest_len =3D digest_len; break; case Opt_policyhandle: if (!tpm2) @@ -821,7 +829,7 @@ static int getoptions(char *c, struct trusted_key_paylo= ad *pay, res =3D kstrtoul(args[0].from, 16, &handle); if (res < 0) return -EINVAL; - opt->policyhandle =3D handle; + private->policyhandle =3D handle; break; default: return -EINVAL; @@ -832,6 +840,7 @@ static int getoptions(char *c, struct trusted_key_paylo= ad *pay, =20 static struct trusted_key_options *trusted_options_alloc(void) { + struct trusted_tpm_options *private; struct trusted_key_options *options; int tpm2; =20 @@ -844,14 +853,22 @@ static struct trusted_key_options *trusted_options_al= loc(void) /* set any non-zero defaults */ options->keytype =3D SRK_keytype; =20 - if (!tpm2) - options->keyhandle =3D SRKHANDLE; + private =3D kzalloc_obj(*private); + if (!private) { + kfree_sensitive(options); + options =3D NULL; + } else { + if (!tpm2) + private->keyhandle =3D SRKHANDLE; + options->private =3D private; + } } return options; } =20 static int trusted_tpm_seal(struct trusted_key_payload *p, char *datablob) { + struct trusted_tpm_options *private =3D NULL; struct trusted_key_options *options =3D NULL; int ret =3D 0; int tpm2; @@ -869,7 +886,8 @@ static int trusted_tpm_seal(struct trusted_key_payload = *p, char *datablob) goto out; dump_options(options); =20 - if (!options->keyhandle && !tpm2) { + private =3D options->private; + if (!private->keyhandle && !tpm2) { ret =3D -EINVAL; goto out; } @@ -883,20 +901,23 @@ static int trusted_tpm_seal(struct trusted_key_payloa= d *p, char *datablob) goto out; } =20 - if (options->pcrlock) { - ret =3D pcrlock(options->pcrlock); + if (private->pcrlock) { + ret =3D pcrlock(private->pcrlock); if (ret < 0) { pr_info("pcrlock failed (%d)\n", ret); goto out; } } out: + if (options) + kfree_sensitive(options->private); kfree_sensitive(options); return ret; } =20 static int trusted_tpm_unseal(struct trusted_key_payload *p, char *datablo= b) { + struct trusted_tpm_options *private =3D NULL; struct trusted_key_options *options =3D NULL; int ret =3D 0; int tpm2; @@ -914,7 +935,8 @@ static int trusted_tpm_unseal(struct trusted_key_payloa= d *p, char *datablob) goto out; dump_options(options); =20 - if (!options->keyhandle && !tpm2) { + private =3D options->private; + if (!private->keyhandle && !tpm2) { ret =3D -EINVAL; goto out; } @@ -926,14 +948,16 @@ static int trusted_tpm_unseal(struct trusted_key_payl= oad *p, char *datablob) if (ret < 0) pr_info("key_unseal failed (%d)\n", ret); =20 - if (options->pcrlock) { - ret =3D pcrlock(options->pcrlock); + if (private->pcrlock) { + ret =3D pcrlock(private->pcrlock); if (ret < 0) { pr_info("pcrlock failed (%d)\n", ret); goto out; } } out: + if (options) + kfree_sensitive(options->private); kfree_sensitive(options); return ret; } diff --git a/security/keys/trusted-keys/trusted_tpm2.c b/security/keys/trus= ted-keys/trusted_tpm2.c index 67225dd562a9..07b831b515bb 100644 --- a/security/keys/trusted-keys/trusted_tpm2.c +++ b/security/keys/trusted-keys/trusted_tpm2.c @@ -23,6 +23,7 @@ static int tpm2_key_encode(struct trusted_key_payload *pa= yload, struct trusted_key_options *options, u8 *src, u32 len) { + struct trusted_tpm_options *private =3D options->private; const int SCRATCH_SIZE =3D PAGE_SIZE; u8 *scratch =3D kmalloc(SCRATCH_SIZE, GFP_KERNEL); u8 *work =3D scratch, *work1; @@ -45,7 +46,7 @@ static int tpm2_key_encode(struct trusted_key_payload *pa= yload, work =3D asn1_encode_oid(work, end_work, tpm2key_oid, asn1_oid_len(tpm2key_oid)); =20 - if (options->blobauth_len =3D=3D 0) { + if (private->blobauth_len =3D=3D 0) { unsigned char bool[3], *w =3D bool; /* tag 0 is emptyAuth */ w =3D asn1_encode_boolean(w, w + sizeof(bool), true); @@ -68,7 +69,7 @@ static int tpm2_key_encode(struct trusted_key_payload *pa= yload, goto err; } =20 - work =3D asn1_encode_integer(work, end_work, options->keyhandle); + work =3D asn1_encode_integer(work, end_work, private->keyhandle); work =3D asn1_encode_octet_string(work, end_work, pub, pub_len); work =3D asn1_encode_octet_string(work, end_work, priv, priv_len); =20 @@ -101,6 +102,7 @@ static int tpm2_key_decode(struct trusted_key_payload *= payload, struct trusted_key_options *options, u8 **buf) { + struct trusted_tpm_options *private =3D options->private; int ret; struct tpm2_key_context ctx; u8 *blob; @@ -120,7 +122,7 @@ static int tpm2_key_decode(struct trusted_key_payload *= payload, return -ENOMEM; =20 *buf =3D blob; - options->keyhandle =3D ctx.parent; + private->keyhandle =3D ctx.parent; =20 memcpy(blob, ctx.priv, ctx.priv_len); blob +=3D ctx.priv_len; @@ -232,6 +234,7 @@ int tpm2_seal_trusted(struct tpm_chip *chip, struct trusted_key_payload *payload, struct trusted_key_options *options) { + struct trusted_tpm_options *private =3D options->private; off_t offset =3D TPM_HEADER_SIZE; struct tpm_buf *buf __free(kfree) =3D NULL; struct tpm_buf *sized __free(kfree) =3D NULL; @@ -240,11 +243,11 @@ int tpm2_seal_trusted(struct tpm_chip *chip, u32 flags; int rc; =20 - hash =3D tpm2_find_hash_alg(options->hash); + hash =3D tpm2_find_hash_alg(private->hash); if (hash < 0) return hash; =20 - if (!options->keyhandle) + if (!private->keyhandle) return -EINVAL; =20 rc =3D tpm_try_get_ops(chip); @@ -274,18 +277,18 @@ int tpm2_seal_trusted(struct tpm_chip *chip, =20 tpm_buf_init_sized(sized, TPM_BUFSIZE); =20 - rc =3D tpm_buf_append_name(chip, buf, options->keyhandle, NULL); + rc =3D tpm_buf_append_name(chip, buf, private->keyhandle, NULL); if (rc) goto out; =20 tpm_buf_append_hmac_session(chip, buf, TPM2_SA_DECRYPT, - options->keyauth, TPM_DIGEST_SIZE); + private->keyauth, TPM_DIGEST_SIZE); =20 /* sensitive */ - tpm_buf_append_u16(sized, options->blobauth_len); + tpm_buf_append_u16(sized, private->blobauth_len); =20 - if (options->blobauth_len) - tpm_buf_append(sized, options->blobauth, options->blobauth_len); + if (private->blobauth_len) + tpm_buf_append(sized, private->blobauth, private->blobauth_len); =20 tpm_buf_append_u16(sized, payload->key_len); tpm_buf_append(sized, payload->key, payload->key_len); @@ -298,14 +301,15 @@ int tpm2_seal_trusted(struct tpm_chip *chip, =20 /* key properties */ flags =3D 0; - flags |=3D options->policydigest_len ? 0 : TPM2_OA_USER_WITH_AUTH; + flags |=3D private->policydigest_len ? 0 : TPM2_OA_USER_WITH_AUTH; flags |=3D payload->migratable ? 0 : (TPM2_OA_FIXED_TPM | TPM2_OA_FIXED_P= ARENT); tpm_buf_append_u32(sized, flags); =20 /* policy */ - tpm_buf_append_u16(sized, options->policydigest_len); - if (options->policydigest_len) - tpm_buf_append(sized, options->policydigest, options->policydigest_len); + tpm_buf_append_u16(sized, private->policydigest_len); + if (private->policydigest_len) + tpm_buf_append(sized, private->policydigest, + private->policydigest_len); =20 /* public parameters */ tpm_buf_append_u16(sized, TPM_ALG_NULL); @@ -376,6 +380,7 @@ static int tpm2_load_cmd(struct tpm_chip *chip, u32 *blob_handle) { u8 *blob_ref __free(kfree) =3D NULL; + struct trusted_tpm_options *private =3D options->private; struct tpm_buf *buf __free(kfree) =3D NULL; unsigned int private_len; unsigned int public_len; @@ -395,7 +400,7 @@ static int tpm2_load_cmd(struct tpm_chip *chip, } =20 /* new format carries keyhandle but old format doesn't */ - if (!options->keyhandle) + if (!private->keyhandle) return -EINVAL; =20 /* must be big enough for at least the two be16 size counts */ @@ -439,11 +444,11 @@ static int tpm2_load_cmd(struct tpm_chip *chip, tpm_buf_init(buf, TPM_BUFSIZE); tpm_buf_reset(buf, TPM2_ST_SESSIONS, TPM2_CC_LOAD); =20 - rc =3D tpm_buf_append_name(chip, buf, options->keyhandle, NULL); + rc =3D tpm_buf_append_name(chip, buf, private->keyhandle, NULL); if (rc) return rc; =20 - tpm_buf_append_hmac_session(chip, buf, 0, options->keyauth, + tpm_buf_append_hmac_session(chip, buf, 0, private->keyauth, TPM_DIGEST_SIZE); =20 tpm_buf_append(buf, blob, blob_len); @@ -483,6 +488,7 @@ static int tpm2_unseal_cmd(struct tpm_chip *chip, struct trusted_key_options *options, u32 blob_handle) { + struct trusted_tpm_options *private =3D options->private; struct tpm_header *head; struct tpm_buf *buf __free(kfree) =3D NULL; u16 data_len; @@ -507,10 +513,10 @@ static int tpm2_unseal_cmd(struct tpm_chip *chip, if (rc) return rc; =20 - if (!options->policyhandle) { + if (!private->policyhandle) { tpm_buf_append_hmac_session(chip, buf, TPM2_SA_ENCRYPT, - options->blobauth, - options->blobauth_len); + private->blobauth, + private->blobauth_len); } else { /* * FIXME: The policy session was generated outside the @@ -523,9 +529,9 @@ static int tpm2_unseal_cmd(struct tpm_chip *chip, * could repeat our actions with the exfiltrated * password. */ - tpm2_buf_append_auth(buf, options->policyhandle, + tpm2_buf_append_auth(buf, private->policyhandle, NULL /* nonce */, 0, 0, - options->blobauth, options->blobauth_len); + private->blobauth, private->blobauth_len); if (tpm2_chip_auth(chip)) { tpm_buf_append_hmac_session(chip, buf, TPM2_SA_ENCRYPT, NULL, 0); --=20 2.53.0