From: Jarkko Sakkinen <jarkko@kernel.org>
To: linux-integrity@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko@kernel.org>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
William Roberts <bill.c.roberts@gmail.com>,
Stefan Berger <stefanb@linux.ibm.com>,
David Howells <dhowells@redhat.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Mimi Zohar <zohar@linux.ibm.com>,
Mario Limonciello <mario.limonciello@amd.com>,
Jerry Snitselaar <jsnitsel@redhat.com>
Subject: [PATCH v5 0/8] Extend struct tpm_buf to support sized buffers (TPM2B)
Date: Wed, 22 Nov 2023 00:31:12 +0200 [thread overview]
Message-ID: <20231121223130.30824-1-jarkko@kernel.org> (raw)
This patch set extends struct tpm_buf to support TPM2 sized buffers, and
adds reader functions for parsing more complex response data. It is
implemented to support smooth landing of [2]. Sealing of the TPM2 trusted
keys is updated to utilize the new functionality, and thus provides a
legit test case for it.
TPM2 sized buffer, i.e. the buffers in TPM2 format, are defined in the
section 10.4 of the TPM2 Structures [1] specification.
Here's the smoke test that I've run for TPM2:
/usr/lib/kselftests/run_kselftest.sh
tpm2_createprimary --hierarchy o -G rsa2048 -c key.ctxt
tpm2_evictcontrol -c key.ctxt 0x81000001
keyctl add trusted kmk "new 32 keyhandle=0x81000001" @u
keyctl add encrypted 1000100010001000 "new ecryptfs trusted:kmk 64" @u
[1] https://trustedcomputinggroup.org/resource/tpm-library-specification/
[2] https://lore.kernel.org/linux-integrity/20230403214003.32093-1-James.Bottomley@HansenPartnership.com/
v5:
- Fixed glitch in tpm_buf_read() reported by James Bottomley to the v4.
Was forgotten from v4.
- Remove a spurious memset() call introduced in v4.
- Allow command buffer tag to be initially set to zero (caused spurious
warnings).
v4:
- Cleaned up the bit too spread code changes based on the v3 review.
- For testing instructions see the previous cover letter, and use
linux-v6.6.y branch:
https://lore.kernel.org/linux-integrity/20231024011531.442587-1-jarkko@kernel.org/
v3:
- Resend with rebase to the latest upstream.
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: William Roberts <bill.c.roberts@gmail.com>
Cc: Stefan Berger <stefanb@linux.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Mimi Zohar <zohar@linux.ibm.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Jerry Snitselaar <jsnitsel@redhat.com>
James Bottomley (1):
tpm: Move buffer handling from static inlines to real functions
Jarkko Sakkinen (7):
tpm: Remove unused tpm_buf_tag()
tpm: Remove tpm_send()
tpm: Update &tpm_buf documentation
tpm: Store the length of the tpm_buf data separately.
tpm: TPM2B formatted buffers
tpm: Add tpm_buf_read_{u8,u16,u32}
KEYS: trusted: tpm2: Use struct tpm_buf for sized buffers
drivers/char/tpm/Makefile | 1 +
drivers/char/tpm/tpm-buf.c | 222 ++++++++++++++++++++++
drivers/char/tpm/tpm-interface.c | 26 +--
include/keys/trusted_tpm.h | 2 -
include/linux/tpm.h | 112 +++--------
security/keys/trusted-keys/trusted_tpm1.c | 23 ++-
security/keys/trusted-keys/trusted_tpm2.c | 54 +++---
7 files changed, 295 insertions(+), 145 deletions(-)
create mode 100644 drivers/char/tpm/tpm-buf.c
--
2.42.1
next reply other threads:[~2023-11-21 22:31 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 22:31 Jarkko Sakkinen [this message]
2023-11-21 22:31 ` [PATCH v5 1/8] tpm: Remove unused tpm_buf_tag() Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 2/8] tpm: Remove tpm_send() Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 3/8] tpm: Move buffer handling from static inlines to real functions Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 4/8] tpm: Update &tpm_buf documentation Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 5/8] tpm: Store the length of the tpm_buf data separately Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 6/8] tpm: TPM2B formatted buffers Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 7/8] tpm: Add tpm_buf_read_{u8,u16,u32} Jarkko Sakkinen
2023-11-21 22:31 ` [PATCH v5 8/8] KEYS: trusted: tpm2: Use struct tpm_buf for sized buffers Jarkko Sakkinen
2023-11-28 3:48 ` Serge E. Hallyn
2023-11-28 12:24 ` James Bottomley
2023-11-28 14:34 ` Serge E. Hallyn
2023-11-28 14:37 ` James Bottomley
2023-12-04 4:03 ` Jarkko Sakkinen
2023-11-28 14:42 ` [PATCH v5 0/8] Extend struct tpm_buf to support sized buffers (TPM2B) Serge E. Hallyn
2023-12-04 4:06 ` Jarkko Sakkinen
-- strict thread matches above, loose matches on Subject: below --
2023-11-21 22:29 Jarkko Sakkinen
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