A following patch introduces support for the EFI_TCG2_PROTOCOL eventlog management. Introduce the necessary tpm related headers
Signed-off-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- include/tpm-v2.h | 82 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+)
diff --git a/include/tpm-v2.h b/include/tpm-v2.h index f1826ff38589..fab6b86ca2fa 100644 --- a/include/tpm-v2.h +++ b/include/tpm-v2.h @@ -18,6 +18,12 @@
#define TPM2_DIGEST_LEN 32
+#define TPM2_SHA1_DIGEST_SIZE 20 +#define TPM2_SHA256_DIGEST_SIZE 32 +#define TPM2_SHA384_DIGEST_SIZE 48 +#define TPM2_SHA512_DIGEST_SIZE 64 +#define TPM2_SM3_256_DIGEST_SIZE 32 + #define TPM2_MAX_PCRS 32 #define TPM2_PCR_SELECT_MAX ((TPM2_MAX_PCRS + 7) / 8) #define TPM2_MAX_CAP_BUFFER 1024 @@ -45,6 +51,15 @@ #define TPM2_PT_MAX_COMMAND_SIZE (u32)(TPM2_PT_FIXED + 30) #define TPM2_PT_MAX_RESPONSE_SIZE (u32)(TPM2_PT_FIXED + 31)
+/* event types */ +#define EV_POST_CODE ((u32)0x00000001) +#define EV_NO_ACTION ((u32)0x00000003) +#define EV_SEPARATOR ((u32)0x00000004) +#define EV_S_CRTM_CONTENTS ((u32)0x00000007) +#define EV_S_CRTM_VERSION ((u32)0x00000008) +#define EV_CPU_MICROCODE ((u32)0x00000009) +#define EV_TABLE_OF_DEVICES ((u32)0x0000000B) + /* TPMS_TAGGED_PROPERTY Structure */ struct tpms_tagged_property { u32 property; @@ -86,6 +101,73 @@ struct tpms_capability_data { union tpmu_capabilities data; } __packed;
+/** + * SHA1 Event Log Entry Format + * + * @pcr_index: PCRIndex event extended to + * @event_type: Type of event (see EFI specs) + * @digest: Value extended into PCR index + * @event_size: Size of event + * @event: Event data + */ +struct tcg_pcr_event { + u32 pcr_index; + u32 event_type; + u8 digest[TPM2_SHA1_DIGEST_SIZE]; + u32 event_size; + u8 event[]; +} __packed; + +/** + * Definition of TPMU_HA Union + */ +union tmpu_ha { + u8 sha1[TPM2_SHA1_DIGEST_SIZE]; + u8 sha256[TPM2_SHA256_DIGEST_SIZE]; + u8 sm3_256[TPM2_SM3_256_DIGEST_SIZE]; + u8 sha384[TPM2_SHA384_DIGEST_SIZE]; + u8 sha512[TPM2_SHA512_DIGEST_SIZE]; +} __packed; + +/** + * Definition of TPMT_HA Structure + * + * @hash_alg: Hash algorithm defined in enum tpm2_algorithms + * @digest: Digest value for a given algorithm + */ +struct tpmt_ha { + u16 hash_alg; + union tmpu_ha digest; +} __packed; + +/** + * Definition of TPML_DIGEST_VALUES Structure + * + * @count: Number of algorithms supported by hardware + * @digests: struct for algorithm id and hash value + */ +struct tpml_digest_values { + u32 count; + struct tpmt_ha digests[TPM2_NUM_PCR_BANKS]; +} __packed; + +/** + * Crypto Agile Log Entry Format + * + * @pcr_index: PCRIndex event extended to + * @event_type: Type of event + * @digests: List of digestsextended to PCR index + * @event_size: Size of the event data + * @event: Event data + */ +struct tcg_pcr_event2 { + u32 pcr_index; + u32 event_type; + struct tpml_digest_values digests; + u32 event_size; + u8 event[]; +} __packed; + /** * TPM2 Structure Tags for command/response buffers. *