1 files changed, 111 insertions, 0 deletions
diff --git a/firmware/include/tpm2_tss_constants.h b/firmware/include/tpm2_tss_constants.h
new file mode 100644
index 00000000..cec91e61
--- /dev/null
+++ b/firmware/include/tpm2_tss_constants.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * Some TPM constants and type definitions for standalone compilation for use
+ * in the firmware
+ */
+
+#ifndef __VBOOT_REFERENCE_FIRMWARE_INCLUDE_TPM2_TSS_CONSTANTS_H
+#define __VBOOT_REFERENCE_FIRMWARE_INCLUDE_TPM2_TSS_CONSTANTS_H
+
+#define TPM_BUFFER_SIZE 256
+
+/* Tpm2 command tags. */
+#define TPM_ST_NO_SESSIONS 0x8001
+#define TPM_ST_SESSIONS    0x8002
+
+/* TPM2 command codes. */
+#define TPM2_NV_Write       ((TPM_CC)0x00000137)
+#define TPM2_NV_Read        ((TPM_CC)0x0000014E)
+
+/* TCG Spec defined, verify for TPM2. */
+#define TPM_E_BADINDEX              ((uint32_t) 0x00000002)
+#define TPM_E_INVALID_POSTINIT      ((uint32_t) 0x00000026)
+#define TPM_E_MAXNVWRITES           ((uint32_t) 0x00000048)
+
+#define HR_SHIFT               24
+#define TPM_HT_NV_INDEX        0x01
+#define HR_NV_INDEX           (TPM_HT_NV_INDEX <<  HR_SHIFT)
+#define TPM_RH_PLATFORM     0x4000000C
+#define TPM_RS_PW           0x40000009
+
+
+typedef uint32_t TPM_CC;
+typedef uint32_t TPM_HANDLE;
+typedef TPM_HANDLE TPMI_RH_NV_INDEX;
+
+typedef struct {
+	uint16_t      size;
+	uint8_t       *buffer;
+} TPM2B;
+
+typedef union {
+	struct {
+		uint16_t  size;
+		const uint8_t   *buffer;
+	} t;
+	TPM2B b;
+} TPM2B_MAX_NV_BUFFER;
+
+struct tpm2_nv_read_cmd {
+	TPMI_RH_NV_INDEX nvIndex;
+	uint16_t size;
+	uint16_t offset;
+};
+
+struct tpm2_nv_write_cmd {
+	TPMI_RH_NV_INDEX nvIndex;
+	TPM2B_MAX_NV_BUFFER data;
+	uint16_t offset;
+};
+
+/* Common command/response header. */
+struct tpm_header {
+	uint16_t tpm_tag;
+	uint32_t tpm_size;
+	TPM_CC tpm_code;
+} __attribute__((packed));
+
+struct nv_read_response {
+	uint32_t params_size;
+	TPM2B_MAX_NV_BUFFER buffer;
+};
+
+struct tpm2_session_attrs {
+	uint8_t continueSession : 1;
+	uint8_t auditExclusive  : 1;
+	uint8_t auditReset      : 1;
+	uint8_t reserved3_4     : 2;
+	uint8_t decrypt         : 1;
+	uint8_t encrypt         : 1;
+	uint8_t audit           : 1;
+};
+
+struct tpm2_session_header {
+	uint32_t session_handle;
+	uint16_t nonce_size;
+	uint8_t *nonce;
+	union {
+		struct tpm2_session_attrs session_attr_bits;
+		uint8_t session_attrs;
+	}  __attribute__((packed));
+	uint16_t auth_size;
+	uint8_t *auth;
+};
+
+struct tpm2_response {
+	struct tpm_header hdr;
+	union {
+		struct nv_read_response nvr;
+		struct tpm2_session_header def_space;
+	};
+};
+
+
+/* Temp stubs to quiet down compilation errors. */
+typedef struct {} TPM_PERMANENT_FLAGS;
+typedef struct {} TPM_STCLEAR_FLAGS;
+
+#endif  /* ! __VBOOT_REFERENCE_FIRMWARE_INCLUDE_TPM2_TSS_CONSTANTS_H */