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tpm: rename and export tpm2_digest and tpm2_algorithms

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Rename tpm2_* to tpm_* and move the definitions to include/linux/tpm.h so
that these can be used by other kernel subsystems (e.g. IMA).

Also, set the length of the digest array in tpm_digest to a new constant
named TPM_MAX_DIGEST_SIZE, equal to SHA512_DIGEST_SIZE.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
This commit is contained in:
Roberto Sassu
2019-02-06 17:24:48 +01:00
committed by Jarkko Sakkinen
parent bcfff8384f
commit aa04247593
6 changed files with 33 additions and 30 deletions
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13
drivers/char/tpm/tpm.h
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@@ -122,17 +122,6 @@ enum tpm2_return_codes {
TPM2_RC_RETRY = 0x0922,
};
enum tpm2_algorithms {
TPM2_ALG_ERROR = 0x0000,
TPM2_ALG_SHA1 = 0x0004,
TPM2_ALG_KEYEDHASH = 0x0008,
TPM2_ALG_SHA256 = 0x000B,
TPM2_ALG_SHA384 = 0x000C,
TPM2_ALG_SHA512 = 0x000D,
TPM2_ALG_NULL = 0x0010,
TPM2_ALG_SM3_256 = 0x0012,
};
enum tpm2_command_codes {
TPM2_CC_FIRST = 0x011F,
TPM2_CC_HIERARCHY_CONTROL = 0x0121,
@@ -545,7 +534,7 @@ static inline u32 tpm2_rc_value(u32 rc)
int tpm2_get_timeouts(struct tpm_chip *chip);
int tpm2_pcr_read(struct tpm_chip *chip, u32 pcr_idx, u8 *res_buf);
int tpm2_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, u32 count,
struct tpm2_digest *digests);
struct tpm_digest *digests);
int tpm2_get_random(struct tpm_chip *chip, u8 *dest, size_t max);
void tpm2_flush_context(struct tpm_chip *chip, u32 handle);
int tpm2_seal_trusted(struct tpm_chip *chip,