diff options
Diffstat (limited to 'include/linux/tpm.h')
| -rw-r--r-- | include/linux/tpm.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/tpm.h b/include/linux/tpm.h index 8f4ff39f51e7..543aa3b1dedc 100644 --- a/include/linux/tpm.h +++ b/include/linux/tpm.h @@ -31,6 +31,7 @@ struct tpm_chip; struct trusted_key_payload; struct trusted_key_options; +/* if you add a new hash to this, increment TPM_MAX_HASHES below */ enum tpm_algorithms { TPM_ALG_ERROR = 0x0000, TPM_ALG_SHA1 = 0x0004, @@ -42,6 +43,12 @@ enum tpm_algorithms { TPM_ALG_SM3_256 = 0x0012, }; +/* + * maximum number of hashing algorithms a TPM can have. This is + * basically a count of every hash in tpm_algorithms above + */ +#define TPM_MAX_HASHES 5 + struct tpm_digest { u16 alg_id; u8 digest[TPM_MAX_DIGEST_SIZE]; @@ -146,7 +153,7 @@ struct tpm_chip { struct dentry *bios_dir[TPM_NUM_EVENT_LOG_FILES]; - const struct attribute_group *groups[3]; + const struct attribute_group *groups[3 + TPM_MAX_HASHES]; unsigned int groups_cnt; u32 nr_allocated_banks; @@ -397,6 +404,10 @@ static inline u32 tpm2_rc_value(u32 rc) #if defined(CONFIG_TCG_TPM) || defined(CONFIG_TCG_TPM_MODULE) extern int tpm_is_tpm2(struct tpm_chip *chip); +extern __must_check int tpm_try_get_ops(struct tpm_chip *chip); +extern void tpm_put_ops(struct tpm_chip *chip); +extern ssize_t tpm_transmit_cmd(struct tpm_chip *chip, struct tpm_buf *buf, + size_t min_rsp_body_length, const char *desc); extern int tpm_pcr_read(struct tpm_chip *chip, u32 pcr_idx, struct tpm_digest *digest); extern int tpm_pcr_extend(struct tpm_chip *chip, u32 pcr_idx, @@ -410,7 +421,6 @@ static inline int tpm_is_tpm2(struct tpm_chip *chip) { return -ENODEV; } - static inline int tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, struct tpm_digest *digest) { |