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-rw-r--r--src/include/tpm_lite/tlcl.h23
-rw-r--r--src/lib/Makefile.inc3
-rw-r--r--src/lib/tpm2_tlcl.c284
-rw-r--r--src/lib/tpm2_tlcl_structures.h325
4 files changed, 634 insertions, 1 deletions
diff --git a/src/include/tpm_lite/tlcl.h b/src/include/tpm_lite/tlcl.h
index 77245922c9..c777ff997c 100644
--- a/src/include/tpm_lite/tlcl.h
+++ b/src/include/tpm_lite/tlcl.h
@@ -12,6 +12,7 @@
#ifndef TPM_LITE_TLCL_H_
#define TPM_LITE_TLCL_H_
#include <stdint.h>
+#include <types.h>
#include "tss_constants.h"
@@ -56,12 +57,34 @@ uint32_t tlcl_self_test_full(void);
*/
uint32_t tlcl_continue_self_test(void);
+#if IS_ENABLED(CONFIG_TPM)
/**
* Define a space with permission [perm]. [index] is the index for the space,
* [size] the usable data size. The TPM error code is returned.
*/
uint32_t tlcl_define_space(uint32_t index, uint32_t perm, uint32_t size);
+#elif IS_ENABLED(CONFIG_TPM2)
+
+/*
+ * This enum allows to communicate firmware privilege levels to the TPM layer,
+ * which can map them into its own attributes.
+ */
+enum privilege_level {
+ high_privilege = 1,
+ low_privilege
+};
+
+/*
+ * Define a TPM space. Privilege level describes who can modify the space
+ * (high_privilege - the RO code only, low_privilege - ether RO or RW. The
+ * privilege level needs to be dropped below low_privilege before starting the
+ * kernel.
+ */
+uint32_t tlcl_define_space(uint32_t space_index,
+ enum privilege_level priv_level, size_t space_size);
+#endif
+
/**
* Write [length] bytes of [data] to space at [index]. The TPM error code is
* returned.
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index 0c34b7535d..fe8ec0ac8e 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -54,7 +54,8 @@ verstage-$(CONFIG_COMMON_CBFS_SPI_WRAPPER) += cbfs_spi.c
ifeq ($(MOCK_TPM),1)
libverstage-y += mocked_tlcl.c
else
-libverstage-y += tlcl.c
+libverstage-$(CONFIG_TPM) += tlcl.c
+libverstage-$(CONFIG_TPM2) += tpm2_tlcl.c
endif
verstage-$(CONFIG_GENERIC_UDELAY) += timer.c
diff --git a/src/lib/tpm2_tlcl.c b/src/lib/tpm2_tlcl.c
new file mode 100644
index 0000000000..c352a2c4a6
--- /dev/null
+++ b/src/lib/tpm2_tlcl.c
@@ -0,0 +1,284 @@
+/*
+ * 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.
+ */
+
+#include <console/console.h>
+#include <endian.h>
+#include <lib/tpm2_tlcl_structures.h>
+#include <string.h>
+#include <tpm.h>
+#include <vb2_api.h>
+
+#include "tpm2_marshaling.h"
+
+/*
+ * This file provides interface between firmware and TPM2 device. The TPM1.2
+ * API was copied as is and relevant functions modified to comply with the
+ * TPM2 specification.
+ */
+
+static void *tpm_process_command(TPM_CC command, void *command_body)
+{
+ size_t out_size, in_size;
+ /* Command/response buffer. */
+ static uint8_t cr_buffer[TPM_BUFFER_SIZE];
+
+ out_size = tpm_marshal_command(command, command_body,
+ cr_buffer, sizeof(cr_buffer));
+ if (out_size < 0) {
+ printk(BIOS_ERR, "command %#x, cr size %zd\n",
+ command, out_size);
+ return NULL;
+ }
+
+ in_size = sizeof(cr_buffer);
+ if (tis_sendrecv(cr_buffer, out_size,
+ cr_buffer, &in_size)) {
+ printk(BIOS_ERR, "tpm transaction failed\n");
+ return NULL;
+ }
+
+ return tpm_unmarshal_response(command, cr_buffer, in_size);
+}
+
+
+uint32_t tlcl_get_permanent_flags(TPM_PERMANENT_FLAGS *pflags)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_resume(void)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_assert_physical_presence(void)
+{
+ /*
+ * Nothing to do on TPM2 for this, use platform hierarchy availability
+ * instead.
+ */
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_extend(int pcr_num, const uint8_t *in_digest,
+ uint8_t *out_digest)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_finalize_physical_presence(void)
+{
+ /* Nothing needs to be done with tpm2. */
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_force_clear(void)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_get_flags(uint8_t *disable, uint8_t *deactivated,
+ uint8_t *nvlocked)
+{
+ /*
+ * TPM2 does not map directly into these flags TPM1.2 based firmware
+ * expects to be able to retrieve.
+ *
+ * In any case, if any of these conditions are present, the following
+ * firmware flow would be interrupted and will have a chance to report
+ * an error. Let's just hardcode an "All OK" response for now.
+ */
+
+ if (disable)
+ *disable = 0;
+
+ if (nvlocked)
+ *nvlocked = 1;
+
+ if (deactivated)
+ *deactivated = 0;
+
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_lib_init(void)
+{
+ /*
+ * This function is called directly by vboot, uses vboot return
+ * types.
+ */
+ if (tis_init())
+ return VB2_ERROR_UNKNOWN;
+ if (tis_open())
+ return VB2_ERROR_UNKNOWN;
+ return VB2_SUCCESS;
+}
+
+uint32_t tlcl_physical_presence_cmd_enable(void)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_read(uint32_t index, void *data, uint32_t length)
+{
+ struct tpm2_nv_read_cmd nv_readc;
+ struct tpm2_response *response;
+
+ memset(&nv_readc, 0, sizeof(nv_readc));
+
+ nv_readc.nvIndex = HR_NV_INDEX + index;
+ nv_readc.size = length;
+
+ response = tpm_process_command(TPM2_NV_Read, &nv_readc);
+
+ /* Need to map tpm error codes into internal values. */
+ if (!response)
+ return TPM_E_READ_FAILURE;
+
+ printk(BIOS_INFO, "%s:%d index %#x return code %x\n",
+ __FILE__, __LINE__, index, response->hdr.tpm_code);
+ switch (response->hdr.tpm_code) {
+ case 0:
+ break;
+
+ case 0x28b:
+ return TPM_E_BADINDEX;
+
+ default:
+ return TPM_E_READ_FAILURE;
+ }
+
+ if (length > response->nvr.buffer.t.size)
+ return TPM_E_RESPONSE_TOO_LARGE;
+
+ if (length < response->nvr.buffer.t.size)
+ return TPM_E_READ_EMPTY;
+
+ memcpy(data, response->nvr.buffer.t.buffer, length);
+
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_self_test_full(void)
+{
+ struct tpm2_self_test st;
+ struct tpm2_response *response;
+
+ st.yes_no = 1;
+
+ response = tpm_process_command(TPM2_SelfTest, &st);
+ printk(BIOS_INFO, "%s: response is %x\n",
+ __func__, response ? response->hdr.tpm_code : -1);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_set_deactivated(uint8_t flag)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_set_enable(void)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_set_global_lock(void)
+{
+ /*
+ * This is where the locking of the RO NVram index is supposed to
+ * happen. The most likely way to achieve it is to extend PCR used for
+ * policy when defining this space.
+ */
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+uint32_t tlcl_set_nv_locked(void)
+{
+ printk(BIOS_INFO, "%s:%s:%d\n", __FILE__, __func__, __LINE__);
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_startup(void)
+{
+ struct tpm2_startup startup;
+ struct tpm2_response *response;
+
+ startup.startup_type = TPM_SU_CLEAR;
+ response = tpm_process_command(TPM2_Startup, &startup);
+ if (response && response->hdr.tpm_code &&
+ (response->hdr.tpm_code != TPM_RC_INITIALIZE)) {
+ printk(BIOS_INFO, "startup return code is %x\n",
+ response->hdr.tpm_code);
+ return TPM_E_IOERROR;
+ }
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_write(uint32_t index, const void *data, uint32_t length)
+{
+ struct tpm2_nv_write_cmd nv_writec;
+ struct tpm2_response *response;
+
+ memset(&nv_writec, 0, sizeof(nv_writec));
+
+ nv_writec.nvIndex = HR_NV_INDEX + index;
+ nv_writec.data.t.size = length;
+ nv_writec.data.t.buffer = data;
+
+ response = tpm_process_command(TPM2_NV_Write, &nv_writec);
+
+ /* Need to map tpm error codes into internal values. */
+ if (!response)
+ return TPM_E_WRITE_FAILURE;
+
+ printk(BIOS_INFO, "%s:%d return code %x\n", __func__, __LINE__,
+ response->hdr.tpm_code);
+
+ return TPM_SUCCESS;
+}
+
+uint32_t tlcl_define_space(uint32_t space_index,
+ enum privilege_level priv_level, size_t space_size)
+{
+ struct tpm2_nv_define_space_cmd nvds_cmd;
+ struct tpm2_response *response;
+
+ /* Prepare the define space command structure. */
+ memset(&nvds_cmd, 0, sizeof(nvds_cmd));
+
+ nvds_cmd.publicInfo.dataSize = space_size;
+ nvds_cmd.publicInfo.nvIndex = HR_NV_INDEX + space_index;
+ nvds_cmd.publicInfo.nameAlg = TPM_ALG_SHA256;
+
+ /* Attributes common for all privilege levels. */
+ nvds_cmd.publicInfo.attributes.TPMA_NV_PPWRITE = 1;
+ nvds_cmd.publicInfo.attributes.TPMA_NV_AUTHREAD = 1;
+ nvds_cmd.publicInfo.attributes.TPMA_NV_PPREAD = 1;
+ nvds_cmd.publicInfo.attributes.TPMA_NV_PLATFORMCREATE = 1;
+
+ if (priv_level == high_privilege) {
+ nvds_cmd.publicInfo.attributes.TPMA_NV_WRITE_STCLEAR = 1;
+ nvds_cmd.publicInfo.attributes.TPMA_NV_POLICY_DELETE = 1;
+ }
+
+ response = tpm_process_command(TPM2_NV_DefineSpace, &nvds_cmd);
+ printk(BIOS_INFO, "%s: response is %x\n",
+ __func__, response ? response->hdr.tpm_code : -1);
+
+ if (!response)
+ return TPM_E_NO_DEVICE;
+
+ return response->hdr.tpm_code ? TPM_E_INTERNAL_INCONSISTENCY :
+ TPM_SUCCESS;
+}
diff --git a/src/lib/tpm2_tlcl_structures.h b/src/lib/tpm2_tlcl_structures.h
new file mode 100644
index 0000000000..fad9c0d7bd
--- /dev/null
+++ b/src/lib/tpm2_tlcl_structures.h
@@ -0,0 +1,325 @@
+/*
+ * 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.
+ */
+
+#ifndef __SRC_LIB_TPM2_TLCL_STRUCTURES_H
+#define __SRC_LIB_TPM2_TLCL_STRUCTURES_H
+
+/*
+ * This file includes a subset of definitions of TPM protocol version 2.x
+ * constants and structures needed for functions used in coreboot.
+ */
+#include <stdint.h>
+#include <tpm_lite/tlcl.h>
+#include <types.h>
+
+/* This should be plenty for what firmware needs. */
+#define TPM_BUFFER_SIZE 256
+
+/* Basic TPM2 types. */
+typedef uint16_t TPM_SU;
+typedef uint16_t TPM_ALG_ID;
+typedef uint32_t TPM_CC;
+typedef uint32_t TPM_HANDLE;
+typedef uint32_t TPM_RC;
+typedef uint8_t TPMI_YES_NO;
+typedef TPM_HANDLE TPMI_RH_NV_INDEX;
+typedef TPM_HANDLE TPMI_RH_PROVISION;
+typedef TPM_HANDLE TPMI_SH_AUTH_SESSION;
+typedef TPM_HANDLE TPM_RH;
+typedef TPM_ALG_ID TPMI_ALG_HASH;
+
+/* Some hardcoded algorithm values. */
+#define TPM_ALG_HMAC ((TPM_ALG_ID)0x0005)
+#define TPM_ALG_NULL ((TPM_ALG_ID)0x0010)
+#define TPM_ALG_SHA1 ((TPM_ALG_ID)0x0004)
+#define TPM_ALG_SHA256 ((TPM_ALG_ID)0x000b)
+
+/* Some hardcoded hierarchies. */
+#define TPM_RH_NULL 0x40000007
+#define TPM_RS_PW 0x40000009
+#define TPM_RH_PLATFORM 0x4000000C
+
+typedef struct {
+ uint16_t size;
+ uint8_t *buffer;
+} TPM2B;
+
+typedef union {
+ uint8_t body[512];
+} TPMU_HA;
+
+typedef struct {
+ TPMI_ALG_HASH hashAlg;
+ TPMU_HA digest;
+} TPMT_HA;
+
+typedef union {
+ TPMT_HA digest;
+ TPM_HANDLE handle;
+} TPMU_NAME;
+
+typedef union {
+ struct {
+ uint16_t size;
+ uint8_t name[sizeof(TPMU_NAME)];
+ } t;
+ TPM2B b;
+} TPM2B_NAME;
+
+/* Relevant TPM Command's structures. */
+/* Common command/response header. */
+struct tpm_header {
+ uint16_t tpm_tag;
+ uint32_t tpm_size;
+ TPM_CC tpm_code;
+} __attribute__((packed));
+
+/* TPM command codes. */
+#define TPM2_NV_DefineSpace ((TPM_CC)0x0000012A)
+#define TPM2_NV_Write ((TPM_CC)0x00000137)
+#define TPM2_SelfTest ((TPM_CC)0x00000143)
+#define TPM2_Startup ((TPM_CC)0x00000144)
+#define TPM2_NV_Read ((TPM_CC)0x0000014E)
+#define TPM2_GetCapability ((TPM_CC)0x0000017A)
+
+/* Startup values. */
+#define TPM_SU_CLEAR 0
+#define TPM_SU_STATE 1
+
+#define TPM_HT_NV_INDEX 0x01
+#define TPM_HT_HMAC_SESSION 0x02
+#define TPM_HT_POLICY_SESSION 0x03
+
+#define HR_SHIFT 24
+#define HR_PCR (TPM_HT_PCR << HR_SHIFT)
+#define HR_HMAC_SESSION (TPM_HT_HMAC_SESSION << HR_SHIFT)
+#define HR_POLICY_SESSION (TPM_HT_POLICY_SESSION << HR_SHIFT)
+#define HR_TRANSIENT (TPM_HT_TRANSIENT << HR_SHIFT)
+#define HR_PERSISTENT (TPM_HT_PERSISTENT << HR_SHIFT)
+#define HR_NV_INDEX (TPM_HT_NV_INDEX << HR_SHIFT)
+#define HR_PERMANENT (TPM_HT_PERMANENT << HR_SHIFT)
+#define PCR_FIRST (HR_PCR + 0)
+#define PCR_LAST (PCR_FIRST + IMPLEMENTATION_PCR-1)
+#define HMAC_SESSION_FIRST (HR_HMAC_SESSION + 0)
+#define HMAC_SESSION_LAST (HMAC_SESSION_FIRST+MAX_ACTIVE_SESSIONS-1)
+#define LOADED_SESSION_FIRST HMAC_SESSION_FIRST
+#define LOADED_SESSION_LAST HMAC_SESSION_LAST
+#define POLICY_SESSION_FIRST (HR_POLICY_SESSION + 0)
+#define POLICY_SESSION_LAST (POLICY_SESSION_FIRST + MAX_ACTIVE_SESSIONS-1)
+#define TRANSIENT_FIRST (HR_TRANSIENT + 0)
+#define ACTIVE_SESSION_FIRST POLICY_SESSION_FIRST
+#define ACTIVE_SESSION_LAST POLICY_SESSION_LAST
+#define TRANSIENT_LAST (TRANSIENT_FIRST+MAX_LOADED_OBJECTS-1)
+#define PERSISTENT_FIRST (HR_PERSISTENT + 0)
+#define PERSISTENT_LAST (PERSISTENT_FIRST + 0x00FFFFFF)
+#define PLATFORM_PERSISTENT (PERSISTENT_FIRST + 0x00800000)
+#define NV_INDEX_FIRST (HR_NV_INDEX + 0)
+#define NV_INDEX_LAST (NV_INDEX_FIRST + 0x00FFFFFF)
+#define PERMANENT_FIRST TPM_RH_FIRST
+#define PERMANENT_LAST TPM_RH_LAST
+
+/* Tpm2 command tags. */
+#define TPM_ST_NO_SESSIONS 0x8001
+#define TPM_ST_SESSIONS 0x8002
+
+#define RC_VER1 0x100
+#define TPM_RC_INITIALIZE ((TPM_RC)(RC_VER1 + 0x000))
+
+/* TPM command structures. */
+
+struct tpm2_startup {
+ TPM_SU startup_type;
+};
+
+/* Various TPM capability types to use when querying the device. */
+typedef uint32_t TPM_CAP;
+#define TPM_CAP_TPM_PROPERTIES ((TPM_CAP)0x00000006)
+
+typedef TPM_HANDLE TPMI_RH_NV_AUTH;
+typedef TPM_HANDLE TPMI_RH_NV_INDEX;
+
+/* TPM Property capability constants. */
+typedef uint32_t TPM_PT;
+#define PT_GROUP 0x00000100
+#define PT_VAR (PT_GROUP * 2)
+#define TPM_PT_PERMANENT ((TPM_PT)(PT_VAR + 0))
+
+/* Structures of payloads of various TPM2 commands. */
+struct tpm2_get_capability {
+ TPM_CAP capability;
+ uint32_t property;
+ uint32_t propertyCount;
+};
+
+/* get_capability response when PT_PERMANENT is requested. */
+typedef struct {
+ uint32_t ownerAuthSet : 1;
+ uint32_t endorsementAuthSet : 1;
+ uint32_t lockoutAuthSet : 1;
+ uint32_t reserved3_7 : 5;
+ uint32_t disableClear : 1;
+ uint32_t inLockout : 1;
+ uint32_t tpmGeneratedEPS : 1;
+ uint32_t reserved11_31 : 21;
+} TPMA_PERMANENT;
+
+typedef struct {
+ uint32_t TPMA_NV_PPWRITE : 1;
+ uint32_t TPMA_NV_OWNERWRITE : 1;
+ uint32_t TPMA_NV_AUTHWRITE : 1;
+ uint32_t TPMA_NV_POLICYWRITE : 1;
+ uint32_t TPMA_NV_COUNTER : 1;
+ uint32_t TPMA_NV_BITS : 1;
+ uint32_t TPMA_NV_EXTEND : 1;
+ uint32_t reserved7_9 : 3;
+ uint32_t TPMA_NV_POLICY_DELETE : 1;
+ uint32_t TPMA_NV_WRITELOCKED : 1;
+ uint32_t TPMA_NV_WRITEALL : 1;
+ uint32_t TPMA_NV_WRITEDEFINE : 1;
+ uint32_t TPMA_NV_WRITE_STCLEAR : 1;
+ uint32_t TPMA_NV_GLOBALLOCK : 1;
+ uint32_t TPMA_NV_PPREAD : 1;
+ uint32_t TPMA_NV_OWNERREAD : 1;
+ uint32_t TPMA_NV_AUTHREAD : 1;
+ uint32_t TPMA_NV_POLICYREAD : 1;
+ uint32_t reserved20_24 : 5;
+ uint32_t TPMA_NV_NO_DA : 1;
+ uint32_t TPMA_NV_ORDERLY : 1;
+ uint32_t TPMA_NV_CLEAR_STCLEAR : 1;
+ uint32_t TPMA_NV_READLOCKED : 1;
+ uint32_t TPMA_NV_WRITTEN : 1;
+ uint32_t TPMA_NV_PLATFORMCREATE : 1;
+ uint32_t TPMA_NV_READ_STCLEAR : 1;
+} TPMA_NV;
+
+typedef union {
+ struct {
+ uint16_t size;
+ uint8_t buffer[sizeof(TPMU_HA)];
+ } t;
+ TPM2B b;
+} TPM2B_DIGEST;
+
+typedef TPM2B_DIGEST TPM2B_AUTH;
+typedef TPM2B_DIGEST TPM2B_NONCE;
+
+typedef struct {
+ TPM_PT property;
+ uint32_t value;
+} TPMS_TAGGED_PROPERTY;
+
+#define MAX_CAP_DATA (TPM_BUFFER_SIZE - sizeof(struct tpm_header) - \
+ sizeof(TPMI_YES_NO) - sizeof(TPM_CAP) - sizeof(uint32_t))
+#define MAX_TPM_PROPERTIES (MAX_CAP_DATA/sizeof(TPMS_TAGGED_PROPERTY))
+
+/* Somewhat arbitrary, leave enough room for command wrappers. */
+#define MAX_NV_BUFFER_SIZE (TPM_BUFFER_SIZE - sizeof(struct tpm_header) - 50)
+
+typedef struct {
+ uint32_t count;
+ TPMS_TAGGED_PROPERTY tpmProperty[MAX_TPM_PROPERTIES];
+} TPML_TAGGED_TPM_PROPERTY;
+
+typedef union {
+ TPML_TAGGED_TPM_PROPERTY tpmProperties;
+} TPMU_CAPABILITIES;
+
+typedef struct {
+ TPM_CAP capability;
+ TPMU_CAPABILITIES data;
+} TPMS_CAPABILITY_DATA;
+
+struct get_cap_response {
+ TPMI_YES_NO more_data;
+ TPMS_CAPABILITY_DATA cd;
+};
+
+typedef struct {
+ TPMI_RH_NV_INDEX nvIndex;
+ TPMI_ALG_HASH nameAlg;
+ TPMA_NV attributes;
+ TPM2B_DIGEST authPolicy;
+ uint16_t dataSize;
+} TPMS_NV_PUBLIC;
+
+typedef union {
+ struct {
+ uint16_t size;
+ TPMS_NV_PUBLIC nvPublic;
+ } t;
+ TPM2B b;
+} TPM2B_NV_PUBLIC;
+
+typedef union {
+ struct {
+ uint16_t size;
+ const uint8_t *buffer;
+ } t;
+ TPM2B b;
+} TPM2B_MAX_NV_BUFFER;
+
+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;
+};
+
+/*
+ * TPM session header for commands requiring session information. Also
+ * included in the responses to those commands.
+ */
+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 get_cap_response gc;
+ struct nv_read_response nvr;
+ struct tpm2_session_header def_space;
+ };
+};
+
+struct tpm2_nv_define_space_cmd {
+ TPM2B_AUTH auth;
+ TPMS_NV_PUBLIC publicInfo;
+};
+
+struct tpm2_nv_write_cmd {
+ TPMI_RH_NV_INDEX nvIndex;
+ TPM2B_MAX_NV_BUFFER data;
+ uint16_t offset;
+};
+
+struct tpm2_self_test {
+ TPMI_YES_NO yes_no;
+};
+
+struct tpm2_nv_read_cmd {
+ TPMI_RH_NV_INDEX nvIndex;
+ uint16_t size;
+ uint16_t offset;
+};
+
+#endif // __SRC_LIB_TPM2_TLCL_STRUCTURES_H
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-24 17:57:07 +0000