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| author | Jarkko Sakkinen <jarkko@kernel.org> | 2024-04-29 23:27:54 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko@kernel.org> | 2024-05-09 22:30:51 +0300 |
| commit | e1b72e1b11109bd81577950538a17bc0428e647f (patch) | |
| tree | 71735a798386429af0e0e358bfbc866c0597b459 /include/keys | |
| parent | 37e2ee16d67d17926085cbd0500dd78ca747e59c (diff) | |
| download | linux-e1b72e1b11109bd81577950538a17bc0428e647f.tar.xz | |
tpm: Store the length of the tpm_buf data separately.
TPM2B buffers, or sized buffers, have a two byte header, which contains the
length of the payload as a 16-bit big-endian number, without counting in
the space taken by the header. This differs from encoding in the TPM header
where the length includes also the bytes taken by the header.
Unbound the length of a tpm_buf from the value stored to the TPM command
header. A separate encoding and decoding step so that different buffer
types can be supported, with variant header format and length encoding.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Tested-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'include/keys')
| -rw-r--r-- | include/keys/trusted_tpm.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/keys/trusted_tpm.h b/include/keys/trusted_tpm.h index 7769b726863a..a088b33fd0e3 100644 --- a/include/keys/trusted_tpm.h +++ b/include/keys/trusted_tpm.h @@ -6,8 +6,6 @@ #include <linux/tpm_command.h> /* implementation specific TPM constants */ -#define MAX_BUF_SIZE 1024 -#define TPM_GETRANDOM_SIZE 14 #define TPM_SIZE_OFFSET 2 #define TPM_RETURN_OFFSET 6 #define TPM_DATA_OFFSET 10 |