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| author |   Roberto Sassu <roberto.sassu@huawei.com> | 2019-01-24 16:49:05 +0100 |
|---|---|---|
| committer |   Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2019-02-13 09:47:01 +0200 |
| commit | c8faabfc6f48009fb0d9ad4203aecfa569e5ff8d (patch) | |
| tree | 32f3fbfa5562daf387a54d44032c3bb4e1507716 /include/linux/tpm_eventlog.h | |
| parent | tpm: Fix off-by-one when reading binary_bios_measurements (diff) | |
| download | wireguard-linux-c8faabfc6f48009fb0d9ad4203aecfa569e5ff8d.tar.xz wireguard-linux-c8faabfc6f48009fb0d9ad4203aecfa569e5ff8d.zip | |
tpm: add _head suffix to tcg_efi_specid_event and tcg_pcr_event2
TCG defines two structures, TCG_EfiSpecIDEventStruct and TCG_PCR_EVENT2,
which contain variable-sized arrays in the middle of the definition.
Since these structures are not suitable for type casting, this patch
removes structure members after the variable-sized arrays and adds the
_head suffix to the structure name, to indicate that the renamed structures
do not contain all fields defined by TCG.
Lastly, given that variable-sized arrays are now in the last position, and
given that the size of the arrays cannot be determined in advance, this
patch also sets the size of those arrays to zero and removes the definition
of TPM2_ACTIVE_PCR_BANKS.
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Nayna Jain <nayna@linux.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'include/linux/tpm_eventlog.h')
| -rw-r--r-- | include/linux/tpm_eventlog.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/include/linux/tpm_eventlog.h b/include/linux/tpm_eventlog.h index 20d9da77fc11..f47342361e87 100644 --- a/include/linux/tpm_eventlog.h +++ b/include/linux/tpm_eventlog.h @@ -8,7 +8,6 @@ #define TCG_EVENT_NAME_LEN_MAX 255 #define MAX_TEXT_EVENT 1000 /* Max event string length */ #define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */ -#define TPM2_ACTIVE_PCR_BANKS 3 #define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 0x1 #define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 0x2 @@ -82,7 +81,7 @@ struct tcg_efi_specid_event_algs { u16 digest_size; } __packed; -struct tcg_efi_specid_event { +struct tcg_efi_specid_event_head { u8 signature[16]; u32 platform_class; u8 spec_version_minor; @@ -90,9 +89,7 @@ struct tcg_efi_specid_event { u8 spec_errata; u8 uintnsize; u32 num_algs; - struct tcg_efi_specid_event_algs digest_sizes[TPM2_ACTIVE_PCR_BANKS]; - u8 vendor_info_size; - u8 vendor_info[0]; + struct tcg_efi_specid_event_algs digest_sizes[]; } __packed; struct tcg_pcr_event { @@ -113,12 +110,11 @@ struct tpm2_digest { u8 digest[SHA512_DIGEST_SIZE]; } __packed; -struct tcg_pcr_event2 { +struct tcg_pcr_event2_head { u32 pcr_idx; u32 event_type; u32 count; - struct tpm2_digest digests[TPM2_ACTIVE_PCR_BANKS]; - struct tcg_event_field event; + struct tpm2_digest digests[]; } __packed; #endif |