Merge branch 'net' of https://gitlab.denx.de/u-boot/custodians/u-boot-sh

[platform/kernel/u-boot.git] / include / tpm-v2.h

diff --git a/include/tpm-v2.h b/include/tpm-v2.h
index 2f2e66d..f6c045d 100644 (file)
--- a/include/tpm-v2.h
+++ b/include/tpm-v2.h
@@ -70,6 +70,7 @@ enum tpm2_handles {
  * @TPM2_CC_DAM_RESET: TPM2_DictionaryAttackLockReset().
  * @TPM2_CC_DAM_PARAMETERS: TPM2_DictionaryAttackParameters().
  * @TPM2_CC_GET_CAPABILITY: TPM2_GetCapibility().
+ * @TPM2_CC_GET_RANDOM: TPM2_GetRandom().
  * @TPM2_CC_PCR_READ: TPM2_PCR_Read().
  * @TPM2_CC_PCR_EXTEND: TPM2_PCR_Extend().
  * @TPM2_CC_PCR_SETAUTHVAL: TPM2_PCR_SetAuthValue().
@@ -85,6 +86,7 @@ enum tpm2_command_codes {
        TPM2_CC_DAM_PARAMETERS  = 0x013A,
        TPM2_CC_NV_READ         = 0x014E,
        TPM2_CC_GET_CAPABILITY  = 0x017A,
+       TPM2_CC_GET_RANDOM      = 0x017B,
        TPM2_CC_PCR_READ        = 0x017E,
        TPM2_CC_PCR_EXTEND      = 0x0182,
        TPM2_CC_PCR_SETAUTHVAL  = 0x0183,
@@ -128,6 +130,70 @@ enum tpm2_algorithms {
        TPM2_ALG_NULL           = 0x10,
 };
 
+/* NV index attributes */
+enum tpm_index_attrs {
+       TPMA_NV_PPWRITE         = 1UL << 0,
+       TPMA_NV_OWNERWRITE      = 1UL << 1,
+       TPMA_NV_AUTHWRITE       = 1UL << 2,
+       TPMA_NV_POLICYWRITE     = 1UL << 3,
+       TPMA_NV_COUNTER         = 1UL << 4,
+       TPMA_NV_BITS            = 1UL << 5,
+       TPMA_NV_EXTEND          = 1UL << 6,
+       TPMA_NV_POLICY_DELETE   = 1UL << 10,
+       TPMA_NV_WRITELOCKED     = 1UL << 11,
+       TPMA_NV_WRITEALL        = 1UL << 12,
+       TPMA_NV_WRITEDEFINE     = 1UL << 13,
+       TPMA_NV_WRITE_STCLEAR   = 1UL << 14,
+       TPMA_NV_GLOBALLOCK      = 1UL << 15,
+       TPMA_NV_PPREAD          = 1UL << 16,
+       TPMA_NV_OWNERREAD       = 1UL << 17,
+       TPMA_NV_AUTHREAD        = 1UL << 18,
+       TPMA_NV_POLICYREAD      = 1UL << 19,
+       TPMA_NV_NO_DA           = 1UL << 25,
+       TPMA_NV_ORDERLY         = 1UL << 26,
+       TPMA_NV_CLEAR_STCLEAR   = 1UL << 27,
+       TPMA_NV_READLOCKED      = 1UL << 28,
+       TPMA_NV_WRITTEN         = 1UL << 29,
+       TPMA_NV_PLATFORMCREATE  = 1UL << 30,
+       TPMA_NV_READ_STCLEAR    = 1UL << 31,
+
+       TPMA_NV_MASK_READ       = TPMA_NV_PPREAD | TPMA_NV_OWNERREAD |
+                               TPMA_NV_AUTHREAD | TPMA_NV_POLICYREAD,
+       TPMA_NV_MASK_WRITE      = TPMA_NV_PPWRITE | TPMA_NV_OWNERWRITE |
+                                       TPMA_NV_AUTHWRITE | TPMA_NV_POLICYWRITE,
+};
+
+enum {
+       TPM_ACCESS_VALID                = 1 << 7,
+       TPM_ACCESS_ACTIVE_LOCALITY      = 1 << 5,
+       TPM_ACCESS_REQUEST_PENDING      = 1 << 2,
+       TPM_ACCESS_REQUEST_USE          = 1 << 1,
+       TPM_ACCESS_ESTABLISHMENT        = 1 << 0,
+};
+
+enum {
+       TPM_STS_FAMILY_SHIFT            = 26,
+       TPM_STS_FAMILY_MASK             = 0x3 << TPM_STS_FAMILY_SHIFT,
+       TPM_STS_FAMILY_TPM2             = 1 << TPM_STS_FAMILY_SHIFT,
+       TPM_STS_RESE_TESTABLISMENT_BIT  = 1 << 25,
+       TPM_STS_COMMAND_CANCEL          = 1 << 24,
+       TPM_STS_BURST_COUNT_SHIFT       = 8,
+       TPM_STS_BURST_COUNT_MASK        = 0xffff << TPM_STS_BURST_COUNT_SHIFT,
+       TPM_STS_VALID                   = 1 << 7,
+       TPM_STS_COMMAND_READY           = 1 << 6,
+       TPM_STS_GO                      = 1 << 5,
+       TPM_STS_DATA_AVAIL              = 1 << 4,
+       TPM_STS_DATA_EXPECT             = 1 << 3,
+       TPM_STS_SELF_TEST_DONE          = 1 << 2,
+       TPM_STS_RESPONSE_RETRY          = 1 << 1,
+};
+
+enum {
+       TPM_CMD_COUNT_OFFSET    = 2,
+       TPM_CMD_ORDINAL_OFFSET  = 6,
+       TPM_MAX_BUF_SIZE        = 1260,
+};
+
 /**
  * Issue a TPM2_Startup command.
  *
@@ -275,4 +341,15 @@ u32 tpm2_pcr_setauthvalue(struct udevice *dev, const char *pw,
                          const ssize_t pw_sz, u32 index, const char *key,
                          const ssize_t key_sz);
 
+/**
+ * Issue a TPM2_GetRandom command.
+ *
+ * @dev                TPM device
+ * @param data         output buffer for the random bytes
+ * @param count                size of output buffer
+ *
+ * @return return code of the operation
+ */
+u32 tpm2_get_random(struct udevice *dev, void *data, u32 count);
+
 #endif /* __TPM_V2_H */