tpm: seal/unseal for TPM 2.0

[firefly-linux-kernel-4.4.55.git] / drivers / char / tpm / tpm.h

diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index cb46f6267af2560dedb10c18622fbbca1f4d3f42..a4257a32964f40c189f7a1dc54bd252efa48532a 100644 (file)
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -90,6 +90,9 @@ enum tpm2_return_codes {
 
 enum tpm2_algorithms {
        TPM2_ALG_SHA1           = 0x0004,
+       TPM2_ALG_KEYEDHASH      = 0x0008,
+       TPM2_ALG_SHA256         = 0x000B,
+       TPM2_ALG_NULL           = 0x0010
 };
 
 enum tpm2_command_codes {
@@ -97,6 +100,10 @@ enum tpm2_command_codes {
        TPM2_CC_SELF_TEST       = 0x0143,
        TPM2_CC_STARTUP         = 0x0144,
        TPM2_CC_SHUTDOWN        = 0x0145,
+       TPM2_CC_CREATE          = 0x0153,
+       TPM2_CC_LOAD            = 0x0157,
+       TPM2_CC_UNSEAL          = 0x015E,
+       TPM2_CC_FLUSH_CONTEXT   = 0x0165,
        TPM2_CC_GET_CAPABILITY  = 0x017A,
        TPM2_CC_GET_RANDOM      = 0x017B,
        TPM2_CC_PCR_READ        = 0x017E,
@@ -407,7 +414,7 @@ struct tpm_buf {
        u8 *data;
 };
 
-static inline void tpm_buf_init(struct tpm_buf *buf, u16 tag, u32 ordinal)
+static inline int tpm_buf_init(struct tpm_buf *buf, u16 tag, u32 ordinal)
 {
        struct tpm_input_header *head;
 
@@ -527,6 +534,12 @@ static inline void tpm_add_ppi(struct tpm_chip *chip)
 int tpm2_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf);
 int tpm2_pcr_extend(struct tpm_chip *chip, int pcr_idx, const u8 *hash);
 int tpm2_get_random(struct tpm_chip *chip, u8 *out, size_t max);
+int tpm2_seal_trusted(struct tpm_chip *chip,
+                     struct trusted_key_payload *payload,
+                     struct trusted_key_options *options);
+int tpm2_unseal_trusted(struct tpm_chip *chip,
+                       struct trusted_key_payload *payload,
+                       struct trusted_key_options *options);
 ssize_t tpm2_get_tpm_pt(struct tpm_chip *chip, u32 property_id,
                        u32 *value, const char *desc);