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tpm2.c
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tpm2.c
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/* SPDX-License-Identifier: BSD-3-Clause */
#include <string.h>
#include <tss2/tss2_mu.h>
#include <tss2/tss2_sys.h>
#include "log.h"
#include "object.h"
#include "tool_rc.h"
#include "tpm2.h"
#include "tpm2_alg_util.h"
#include "tpm2_auth_util.h"
#include "tpm2_openssl.h"
#include "tpm2_session.h"
#include "tpm2_tool.h"
#include "config.h"
#define TPM2_ERROR_TSS2_RC_ERROR_MASK 0xFFFF
static inline UINT16 tpm2_error_get(TSS2_RC rc) {
return ((rc & TPM2_ERROR_TSS2_RC_ERROR_MASK));
}
tool_rc tpm2_readpublic(ESYS_CONTEXT *esys_context, ESYS_TR object_handle,
TPM2B_PUBLIC **out_public, TPM2B_NAME **name,
TPM2B_NAME **qualified_name) {
TSS2_RC rval = Esys_ReadPublic(esys_context, object_handle,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE,
out_public, name, qualified_name);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Esys_ReadPublic, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_from_tpm_public(ESYS_CONTEXT *esys_context, TPM2_HANDLE tpm_handle,
ESYS_TR optional_session1, ESYS_TR optional_session2,
ESYS_TR optional_session3, ESYS_TR *object) {
TSS2_RC rval = Esys_TR_FromTPMPublic(esys_context, tpm_handle,
optional_session1, optional_session2, optional_session3, object);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TR_FromTPMPublic, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_tr_deserialize(ESYS_CONTEXT *esys_context, uint8_t const *buffer,
size_t buffer_size, ESYS_TR *esys_handle) {
TSS2_RC rval = Esys_TR_Deserialize(esys_context, buffer, buffer_size,
esys_handle);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TR_Deserialize, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_tr_serialize(ESYS_CONTEXT *esys_context, ESYS_TR object,
uint8_t **buffer, size_t *buffer_size) {
TSS2_RC rval = Esys_TR_Serialize(esys_context, object, buffer, buffer_size);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TR_Serialize, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_tr_get_name(ESYS_CONTEXT *esys_context, ESYS_TR handle,
TPM2B_NAME **name) {
TSS2_RC rval = Esys_TR_GetName(esys_context, handle, name);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TR_GetName, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_close(ESYS_CONTEXT *esys_context, ESYS_TR *rsrc_handle) {
TSS2_RC rval = Esys_TR_Close(esys_context, rsrc_handle);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TR_Close, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_nv_readpublic(ESYS_CONTEXT *esys_context, TPMI_RH_NV_INDEX nv_index,
TPM2B_NAME *precalc_nvname, TPM2B_NV_PUBLIC **nv_public,
TPM2B_NAME **nv_name, TPM2B_DIGEST *cp_hash, TPM2B_DIGEST *rp_hash,
TPMI_ALG_HASH parameter_hash_algorithm, ESYS_TR shandle1, ESYS_TR shandle2,
ESYS_TR shandle3) {
/*
* If command is to be dispatched the NV index must exist.
* In this case get the NV index name by reading its public information.
* If rpHash size is non zero then command is always dispatched.
*/
ESYS_TR esys_tr_nv_handle = ESYS_TR_NONE;
TSS2_RC rval = TSS2_RC_SUCCESS;
bool is_name_specified = precalc_nvname ? precalc_nvname->size : false;
if (!is_name_specified) {
rval = Esys_TR_FromTPMPublic(esys_context, nv_index, ESYS_TR_NONE,
ESYS_TR_NONE, ESYS_TR_NONE, &esys_tr_nv_handle);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Esys_TR_FromTPMPublic, rval);
return tool_rc_from_tpm(rval);
}
}
tool_rc rc = tool_rc_success;
TSS2_SYS_CONTEXT *sys_context = 0;
if ((cp_hash && cp_hash->size) || (rp_hash && rp_hash->size)) {
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire SAPI context.");
return rc;
}
}
if (cp_hash && cp_hash->size) {
rval = Tss2_Sys_NV_ReadPublic_Prepare(sys_context, nv_index);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_NV_ReadPublic_Prepare, rval);
return tool_rc_general_error;
}
TPM2B_NAME *name1 = 0;
if (is_name_specified) {
name1 = precalc_nvname;
} else {
rc = tpm2_tr_get_name(esys_context, esys_tr_nv_handle, &name1);
if (rc != tool_rc_success) {
goto tpm2_nvreadpublic_free_name1;
}
}
rc = tpm2_sapi_getcphash(sys_context, name1, 0, 0,
parameter_hash_algorithm, cp_hash);
tpm2_nvreadpublic_free_name1:
if (!is_name_specified) {
Esys_Free(name1);
}
if (rc != tool_rc_success || (rp_hash && !rp_hash->size)) {
goto tpm2_nvreadpublic_skip_esapi_call;
}
}
rval = Esys_NV_ReadPublic(esys_context, esys_tr_nv_handle, shandle1,
shandle2, shandle3, nv_public, nv_name);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_NV_ReadPublic, rval);
return tool_rc_from_tpm(rval);
}
if (rp_hash && rp_hash->size) {
rc = tpm2_sapi_getrphash(sys_context, rval, rp_hash,
parameter_hash_algorithm);
}
tpm2_nvreadpublic_skip_esapi_call:
return rc;
}
tool_rc tpm2_getcap(ESYS_CONTEXT *esys_context, TPM2_CAP capability,
UINT32 property, UINT32 property_count, TPMI_YES_NO *more_data,
TPMS_CAPABILITY_DATA **capability_data) {
TSS2_RC rval = Esys_GetCapability(esys_context, ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE,
capability, property, property_count, more_data, capability_data);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_NV_ReadPublic, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_nv_read(ESYS_CONTEXT *esys_context,
tpm2_loaded_object *auth_hierarchy_obj, TPM2_HANDLE nv_index,
TPM2B_NAME *precalc_nvname, UINT16 size, UINT16 offset,
TPM2B_MAX_NV_BUFFER **data, TPM2B_DIGEST *cp_hash, TPM2B_DIGEST *rp_hash,
TPMI_ALG_HASH parameter_hash_algorithm, ESYS_TR shandle2,
ESYS_TR shandle3) {
/*
* If command is to be dispatched the NV index must exist.
* In this case get the NV index name by reading its public information.
* If rpHash size is non zero then command is always dispatched.
*/
ESYS_TR esys_tr_nv_handle = ESYS_TR_NONE;
TSS2_RC rval = TSS2_RC_SUCCESS;
bool is_name_specified = precalc_nvname ? precalc_nvname->size : false;
if (!is_name_specified) {
rval = Esys_TR_FromTPMPublic(esys_context, nv_index, ESYS_TR_NONE,
ESYS_TR_NONE, ESYS_TR_NONE, &esys_tr_nv_handle);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Esys_TR_FromTPMPublic, rval);
return tool_rc_from_tpm(rval);
}
}
TSS2_SYS_CONTEXT *sys_context = NULL;
tool_rc rc = tool_rc_success;
if (cp_hash->size || rp_hash->size) {
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire SAPI context.");
return rc;
}
}
if (cp_hash->size) {
rval = Tss2_Sys_NV_Read_Prepare(sys_context, auth_hierarchy_obj->handle,
nv_index, size, offset);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_NV_Read_Prepare, rval);
return tool_rc_general_error;
}
/*
* We need this to use precalc-name for parent authorization when the
* NV index itself is the authorization parent AND
* we don't need/have the NV index defined when simply calculating cpHash.
*/
bool is_auth_hierarchy_nv_index =
(auth_hierarchy_obj->tr_handle != ESYS_TR_RH_OWNER) &&
(auth_hierarchy_obj->tr_handle != ESYS_TR_RH_PLATFORM);
/*
* We need this to avoid requiring an NV-index be defined when simply
* calculating cpHash.
*/
TPM2B_NAME *name1 = 0;
if (is_auth_hierarchy_nv_index && is_name_specified) {
name1 = precalc_nvname;
} else {
rc = tpm2_tr_get_name(esys_context, auth_hierarchy_obj->tr_handle,
&name1);
if (rc != tool_rc_success) {
goto tpm2_nvread_free_name1;
}
}
TPM2B_NAME *name2 = 0;
if (is_name_specified) {
name2 = precalc_nvname;
} else {
rc = tpm2_tr_get_name(esys_context, esys_tr_nv_handle, &name2);
if (rc != tool_rc_success) {
goto tpm2_nvread_free_name1_name2;
}
}
rc = tpm2_sapi_getcphash(sys_context, name1, name2, NULL,
parameter_hash_algorithm, cp_hash);
tpm2_nvread_free_name1_name2:
if (!(is_name_specified)) {
Esys_Free(name2);
}
tpm2_nvread_free_name1:
if (!is_name_specified) {
Esys_Free(name1);
}
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
if (!rp_hash->size) {
goto tpm2_nvread_skip_esapi_call;
}
}
ESYS_TR auth_hierarchy_obj_session_handle = ESYS_TR_NONE;
rc = tpm2_auth_util_get_shandle(esys_context,
auth_hierarchy_obj->tr_handle, auth_hierarchy_obj->session,
&auth_hierarchy_obj_session_handle);
if (rc != tool_rc_success) {
LOG_ERR("Failed to get shandle");
return rc;
}
rval = Esys_NV_Read(esys_context, auth_hierarchy_obj->tr_handle,
esys_tr_nv_handle, auth_hierarchy_obj_session_handle, shandle2,
shandle3, size, offset, data);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_NV_Read, rval);
return tool_rc_from_tpm(rval);
}
if (rp_hash->size) {
rc = tpm2_sapi_getrphash(sys_context, rval, rp_hash,
parameter_hash_algorithm);
}
tpm2_nvread_skip_esapi_call:
return rc;
}
tool_rc tpm2_context_save(ESYS_CONTEXT *esys_context, ESYS_TR save_handle,
bool autoflush, TPMS_CONTEXT **context) {
TSS2_RC rval = Esys_ContextSave(esys_context, save_handle, context);
TPM2_HANDLE tpm_handle;
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_ContextSave, rval);
return tool_rc_from_tpm(rval);
}
if (autoflush || tpm2_util_env_yes(TPM2TOOLS_ENV_AUTOFLUSH)) {
rval = Esys_TR_GetTpmHandle(esys_context, save_handle, &tpm_handle);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TR_GetTpmHandle, rval);
return tool_rc_from_tpm(rval);
}
if ((tpm_handle & TPM2_HR_RANGE_MASK) == TPM2_HR_TRANSIENT) {
TSS2_RC rval = Esys_FlushContext(esys_context, save_handle);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Eys_ContextFlush, rval);
return false;
}
}
}
return tool_rc_success;
}
tool_rc tpm2_context_load(ESYS_CONTEXT *esys_context,
const TPMS_CONTEXT *context, ESYS_TR *loaded_handle) {
TSS2_RC rval = Esys_ContextLoad(esys_context, context, loaded_handle);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_ContextLoad, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_flush_context(ESYS_CONTEXT *esys_context, ESYS_TR flush_handle,
TPM2B_DIGEST *cp_hash, TPMI_ALG_HASH parameter_hash_algorithm) {
tool_rc rc = tool_rc_success;
TSS2_RC rval = TSS2_RC_SUCCESS;
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire Tss2_Sys_FlushContext_Prepare SAPI context.");
return rc;
}
TPM2_HANDLE sapi_flush_handle = 0;
rval = Esys_TR_GetTpmHandle(esys_context, flush_handle,
&sapi_flush_handle);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to acquire SAPI handle");
return tool_rc_general_error;
}
TSS2_RC rval = Tss2_Sys_FlushContext_Prepare(
sys_context, sapi_flush_handle);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_FlushContext_Prepare, rval);
return tool_rc_general_error;
}
/*
* There is a bug in SAPI where in the flush handle is placed in the
* handle area instead of the parameter area.
* Ref: https://github.com/tpm2-software/tpm2-tss/issues/2382
*
* We determine this scenario by reading the parameter size in the
* cpBuffer which is returned as zero due to the bug.
*
* When calculating the cpHash, the workaround for this scenario is to
* provide the flush handle as a name.
*/
const uint8_t *command_parameters;
size_t command_parameters_size;
rval = Tss2_Sys_GetCpBuffer(sys_context, &command_parameters_size,
&command_parameters);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_GetCpBuffer, rval);
return tool_rc_general_error;
}
TPM2B_NAME name1 = { 0 };
if (!command_parameters_size) {
name1.size = sizeof(TPM2_HANDLE);
rval = Tss2_MU_TPM2_HANDLE_Marshal(sapi_flush_handle, name1.name,
name1.size, 0);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to populate SAPI handle");
return tool_rc_general_error;
}
}
rc = tpm2_sapi_getcphash(sys_context, name1.size ? &name1 : NULL, NULL,
NULL, parameter_hash_algorithm, cp_hash);
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
goto tpm2_flushcontext_skip_esapi_call;
}
rval = Esys_FlushContext(esys_context, flush_handle);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_FlushContext, rval);
return tool_rc_from_tpm(rval);
}
tpm2_flushcontext_skip_esapi_call:
return rc;
}
tool_rc tpm2_start_auth_session(ESYS_CONTEXT *esys_context, ESYS_TR tpm_key,
ESYS_TR bind, const TPM2B_NONCE *nonce_caller, TPM2_SE session_type,
const TPMT_SYM_DEF *symmetric, TPMI_ALG_HASH auth_hash,
ESYS_TR *session_handle) {
TSS2_RC rval = Esys_StartAuthSession(esys_context, tpm_key, bind,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE, nonce_caller, session_type,
symmetric, auth_hash, session_handle);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_StartAuthSession, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_sess_set_attributes(ESYS_CONTEXT *esys_context, ESYS_TR session,
TPMA_SESSION flags, TPMA_SESSION mask) {
TSS2_RC rval = Esys_TRSess_SetAttributes(esys_context, session, flags, mask);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TRSess_SetAttributes, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_sess_get_attributes(ESYS_CONTEXT *esys_context, ESYS_TR session,
TPMA_SESSION *flags) {
TSS2_RC rval = Esys_TRSess_GetAttributes(esys_context, session, flags);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TRSess_GetAttributes, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_sess_get_noncetpm(ESYS_CONTEXT *esys_context,
ESYS_TR session_handle, TPM2B_NONCE **nonce_tpm) {
TSS2_RC rval = Esys_TRSess_GetNonceTPM(esys_context, session_handle,
nonce_tpm);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_TRSess_GetNonceTPM, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_restart(ESYS_CONTEXT *esys_context, ESYS_TR session_handle,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
TPM2B_DIGEST *cp_hash, TPMI_ALG_HASH parameter_hash_algorithm) {
TSS2_RC rval = TSS2_RC_SUCCESS;
tool_rc rc = tool_rc_success;
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire Tss2_Sys_PolicyRestart_Prepare SAPI context.");
return rc;
}
TSS2_RC rval = Tss2_Sys_PolicyRestart_Prepare(
sys_context, session_handle);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_PolicyRestart_Prepare, rval);
return tool_rc_general_error;
}
TPM2_HANDLE sapi_policy_session = 0;
rval = Esys_TR_GetTpmHandle(esys_context, session_handle,
&sapi_policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to acquire SAPI handle");
return tool_rc_general_error;
}
TPM2B_NAME name1 = { 0 };
name1.size = sizeof(TPM2_HANDLE);
rval = Tss2_MU_TPM2_HANDLE_Marshal(sapi_policy_session, name1.name,
name1.size, 0);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to populate SAPI handle");
return tool_rc_general_error;
}
rc = tpm2_sapi_getcphash(sys_context, &name1, NULL, NULL,
parameter_hash_algorithm, cp_hash);
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
goto tpm2_policyrestart_skip_esapi_call;
}
rval = Esys_PolicyRestart(esys_context, session_handle, shandle1,
shandle2, shandle3);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyRestart, rval);
return tool_rc_from_tpm(rval);
}
tpm2_policyrestart_skip_esapi_call:
return rc;
}
tool_rc tpm2_get_capability(ESYS_CONTEXT *esys_context, ESYS_TR shandle1,
ESYS_TR shandle2, ESYS_TR shandle3, TPM2_CAP capability,
UINT32 property, UINT32 property_count, TPMI_YES_NO *more_data,
TPMS_CAPABILITY_DATA **capability_data) {
TSS2_RC rval = Esys_GetCapability(esys_context, shandle1, shandle2, shandle3,
capability, property, property_count, more_data, capability_data);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_GetCapability, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_create_primary(ESYS_CONTEXT *esys_context,
tpm2_loaded_object *auth_hierarchy_obj,
const TPM2B_SENSITIVE_CREATE *in_sensitive, const TPM2B_PUBLIC *in_public,
const TPM2B_DATA *outside_info, const TPML_PCR_SELECTION *creation_pcr,
ESYS_TR *object_handle, TPM2B_PUBLIC **out_public,
TPM2B_CREATION_DATA **creation_data, TPM2B_DIGEST **creation_hash,
TPMT_TK_CREATION **creation_ticket, TPM2B_DIGEST *cp_hash,
TPMI_ALG_HASH parameter_hash_algorithm) {
ESYS_TR shandle1 = ESYS_TR_NONE;
tool_rc rc = tpm2_auth_util_get_shandle(esys_context,
auth_hierarchy_obj->tr_handle, auth_hierarchy_obj->session, &shandle1);
if (rc != tool_rc_success) {
LOG_ERR("Couldn't get shandle for hierarchy");
return rc;
}
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire SAPI context.");
return rc;
}
TSS2_RC rval = Tss2_Sys_CreatePrimary_Prepare(sys_context,
auth_hierarchy_obj->handle, in_sensitive, in_public, outside_info,
creation_pcr);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_CreatePrimary_Prepare, rval);
return tool_rc_general_error;
}
TPM2B_NAME *name1 = 0;
rc = tpm2_tr_get_name(esys_context, auth_hierarchy_obj->tr_handle,
&name1);
if (rc != tool_rc_success) {
goto tpm2_create_free_name1;
}
rc = tpm2_sapi_getcphash(sys_context, name1, 0, 0,
parameter_hash_algorithm, cp_hash);
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
tpm2_create_free_name1:
Esys_Free(name1);
return rc;
}
TSS2_RC rval = Esys_CreatePrimary(esys_context, auth_hierarchy_obj->tr_handle, shandle1,
ESYS_TR_NONE, ESYS_TR_NONE, in_sensitive, in_public, outside_info,
creation_pcr, object_handle, out_public, creation_data, creation_hash,
creation_ticket);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_CreatePrimary, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_pcr_read(ESYS_CONTEXT *esys_context, ESYS_TR shandle1,
ESYS_TR shandle2, ESYS_TR shandle3,
const TPML_PCR_SELECTION *pcr_selection_in, UINT32 *pcr_update_counter,
TPML_PCR_SELECTION **pcr_selection_out, TPML_DIGEST **pcr_values,
TPM2B_DIGEST *cp_hash, TPMI_ALG_HASH parameter_hash_algorithm) {
TSS2_RC rval = TSS2_RC_SUCCESS;
tool_rc rc = tool_rc_success;
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire Tss2_Sys_PCR_Read_Prepare SAPI context.");
return rc;
}
TSS2_RC rval = Tss2_Sys_PCR_Read_Prepare(
sys_context, pcr_selection_in);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_PCR_Read_Prepare, rval);
return tool_rc_general_error;
}
rc = tpm2_sapi_getcphash(sys_context, NULL, NULL, NULL,
parameter_hash_algorithm, cp_hash);
goto tpm2_pcrread_skip_esapi_call;
}
rval = Esys_PCR_Read(esys_context, shandle1, shandle2, shandle3,
pcr_selection_in, pcr_update_counter, pcr_selection_out, pcr_values);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PCR_Read, rval);
return tool_rc_from_tpm(rval);
}
tpm2_pcrread_skip_esapi_call:
return rc;
}
tool_rc tpm2_policy_authorize(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
const TPM2B_DIGEST *approved_policy, const TPM2B_NONCE *policy_ref,
const TPM2B_NAME *key_sign, const TPMT_TK_VERIFIED *check_ticket,
TPM2B_DIGEST *cp_hash, TPMI_ALG_HASH parameter_hash_algorithm) {
TSS2_RC rval = TSS2_RC_SUCCESS;
tool_rc rc = tool_rc_success;
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire Tss2_Sys_PolicyAuthorize_Prepare SAPI context.");
return rc;
}
TSS2_RC rval = Tss2_Sys_PolicyAuthorize_Prepare(
sys_context, policy_session, approved_policy, policy_ref, key_sign,
check_ticket);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_PolicyAuthorize_Prepare, rval);
return tool_rc_general_error;
}
TPM2_HANDLE sapi_policy_session = 0;
rval = Esys_TR_GetTpmHandle(esys_context, policy_session,
&sapi_policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to acquire SAPI handle");
return tool_rc_general_error;
}
TPM2B_NAME name1 = { 0 };
name1.size = sizeof(TPM2_HANDLE);
rval = Tss2_MU_TPM2_HANDLE_Marshal(sapi_policy_session, name1.name,
name1.size, 0);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to populate SAPI handle");
return tool_rc_general_error;
}
rc = tpm2_sapi_getcphash(sys_context, &name1, NULL, NULL,
parameter_hash_algorithm, cp_hash);
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
goto tpm2_policyauthorize_skip_esapi_call;
}
rval = Esys_PolicyAuthorize(esys_context, policy_session, shandle1,
shandle2, shandle3, approved_policy, policy_ref, key_sign,
check_ticket);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyAuthorize, rval);
return tool_rc_from_tpm(rval);
}
tpm2_policyauthorize_skip_esapi_call:
return rc;
}
tool_rc tpm2_policy_or(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
const TPML_DIGEST *p_hash_list) {
TSS2_RC rval = Esys_PolicyOR(esys_context, policy_session, shandle1, shandle2,
shandle3, p_hash_list);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyAuthorize, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_namehash(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
const TPM2B_DIGEST *name_hash) {
TSS2_RC rval = Esys_PolicyNameHash(esys_context, policy_session,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE, name_hash);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyNameHash, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_template(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
const TPM2B_DIGEST *template_hash) {
TSS2_RC rval = Esys_PolicyTemplate(esys_context, policy_session,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE, template_hash);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyTemplate, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_cphash(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
const TPM2B_DIGEST *cphash) {
TSS2_RC rval = Esys_PolicyCpHash(esys_context, policy_session,
ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE, cphash);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyCpHash, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_pcr(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
const TPM2B_DIGEST *pcr_digest, const TPML_PCR_SELECTION *pcrs) {
TSS2_RC rval = Esys_PolicyPCR(esys_context, policy_session, shandle1,
shandle2, shandle3, pcr_digest, pcrs);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyPCR, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_password(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
ESYS_TR shandle1, ESYS_TR shandle2, ESYS_TR shandle3,
TPM2B_DIGEST *cp_hash, TPMI_ALG_HASH parameter_hash_algorithm) {
TSS2_RC rval = TSS2_RC_SUCCESS;
tool_rc rc = tool_rc_success;
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire Tss2_Sys_PolicyPassword_Prepare SAPI context.");
return rc;
}
TSS2_RC rval = Tss2_Sys_PolicyPassword_Prepare(
sys_context, policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_PolicyPassword_Prepare, rval);
return tool_rc_general_error;
}
TPM2_HANDLE sapi_policy_session = 0;
rval = Esys_TR_GetTpmHandle(esys_context, policy_session,
&sapi_policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to acquire SAPI handle");
return tool_rc_general_error;
}
TPM2B_NAME name1 = { 0 };
name1.size = sizeof(TPM2_HANDLE);
rval = Tss2_MU_TPM2_HANDLE_Marshal(sapi_policy_session, name1.name,
name1.size, 0);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to populate SAPI handle");
return tool_rc_general_error;
}
rc = tpm2_sapi_getcphash(sys_context, &name1, NULL, NULL,
parameter_hash_algorithm, cp_hash);
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
goto tpm2_policypassword_skip_esapi_call;
}
rval = Esys_PolicyPassword(esys_context, policy_session, shandle1,
shandle2, shandle3);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyPassword, rval);
return tool_rc_from_tpm(rval);
}
tpm2_policypassword_skip_esapi_call:
return rc;
}
tool_rc tpm2_policy_signed(ESYS_CONTEXT *esys_context,
tpm2_loaded_object *auth_entity_obj, ESYS_TR policy_session,
const TPMT_SIGNATURE *signature, INT32 expiration,
TPM2B_TIMEOUT **timeout, TPMT_TK_AUTH **policy_ticket,
TPM2B_NONCE *policy_qualifier, TPM2B_NONCE *nonce_tpm,
TPM2B_DIGEST *cphash) {
TSS2_RC rval = Esys_PolicySigned(esys_context, auth_entity_obj->tr_handle,
policy_session, ESYS_TR_NONE, ESYS_TR_NONE, ESYS_TR_NONE, nonce_tpm,
cphash, policy_qualifier, expiration, signature, timeout, policy_ticket);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicySigned, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_ticket(ESYS_CONTEXT *esys_context, ESYS_TR policy_session,
const TPM2B_TIMEOUT *timeout, const TPM2B_NONCE *policyref,
const TPM2B_NAME *authname, const TPMT_TK_AUTH *ticket) {
TSS2_RC rval = Esys_PolicyTicket(esys_context, policy_session, ESYS_TR_NONE,
ESYS_TR_NONE, ESYS_TR_NONE, timeout, NULL, policyref, authname, ticket);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicySigned, rval);
return tool_rc_from_tpm(rval);
}
return tool_rc_success;
}
tool_rc tpm2_policy_authvalue(ESYS_CONTEXT *esys_context,
ESYS_TR policy_session, ESYS_TR shandle1, ESYS_TR shandle2,
ESYS_TR shandle3, TPM2B_DIGEST *cp_hash,
TPMI_ALG_HASH parameter_hash_algorithm) {
TSS2_RC rval = TSS2_RC_SUCCESS;
tool_rc rc = tool_rc_success;
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire Tss2_Sys_PolicyAuthValue_Prepare SAPI context.");
return rc;
}
TSS2_RC rval = Tss2_Sys_PolicyAuthValue_Prepare(
sys_context, policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_PolicyAuthValue_Prepare, rval);
return tool_rc_general_error;
}
TPM2_HANDLE sapi_policy_session = 0;
rval = Esys_TR_GetTpmHandle(esys_context, policy_session,
&sapi_policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to acquire SAPI handle");
return tool_rc_general_error;
}
TPM2B_NAME name1 = { 0 };
name1.size = sizeof(TPM2_HANDLE);
rval = Tss2_MU_TPM2_HANDLE_Marshal(sapi_policy_session, name1.name,
name1.size, 0);
if (rval != TPM2_RC_SUCCESS) {
LOG_ERR("Failed to populate SAPI handle");
return tool_rc_general_error;
}
rc = tpm2_sapi_getcphash(sys_context, &name1, NULL, NULL,
parameter_hash_algorithm, cp_hash);
/*
* Exit here without making the ESYS call since we just need the cpHash
*/
goto tpm2_policyauthvalue_skip_esapi_call;
}
rval = Esys_PolicyAuthValue(esys_context, policy_session, shandle1,
shandle2, shandle3);
if (rval != TSS2_RC_SUCCESS) {
LOG_PERR(Esys_PolicyAuthValue, rval);
return tool_rc_from_tpm(rval);
}
tpm2_policyauthvalue_skip_esapi_call:
return rc;
}
tool_rc tpm2_policy_authorize_nv(ESYS_CONTEXT *esys_context,
tpm2_loaded_object *auth_hierarchy_obj, TPM2_HANDLE nv_index,
ESYS_TR policy_session, TPM2B_DIGEST *cp_hash,
TPMI_ALG_HASH parameter_hash_algorithm) {
ESYS_TR esys_tr_nv_index;
TSS2_RC rval = Esys_TR_FromTPMPublic(esys_context, nv_index, ESYS_TR_NONE,
ESYS_TR_NONE, ESYS_TR_NONE, &esys_tr_nv_index);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Esys_TR_FromTPMPublic, rval);
return tool_rc_from_tpm(rval);
}
ESYS_TR auth_hierarchy_obj_session_handle = ESYS_TR_NONE;
tool_rc rc = tpm2_auth_util_get_shandle(esys_context,
auth_hierarchy_obj->tr_handle, auth_hierarchy_obj->session,
&auth_hierarchy_obj_session_handle);
if (rc != tool_rc_success) {
LOG_ERR("Failed to get auth entity obj session");
return rc;
}
if (cp_hash && cp_hash->size) {
/*
* Need sys_context to be able to calculate CpHash
*/
TSS2_SYS_CONTEXT *sys_context = 0;
rc = tpm2_getsapicontext(esys_context, &sys_context);
if(rc != tool_rc_success) {
LOG_ERR("Failed to acquire SAPI context.");
return rc;
}
rval = Tss2_Sys_PolicyAuthorizeNV_Prepare(sys_context,
auth_hierarchy_obj->handle, nv_index, policy_session);
if (rval != TPM2_RC_SUCCESS) {
LOG_PERR(Tss2_Sys_PolicyAuthorizeNV_Prepare, rval);
return tool_rc_general_error;
}
TPM2B_NAME *name1 = 0;
rc = tpm2_tr_get_name(esys_context, auth_hierarchy_obj->tr_handle,
&name1);
if (rc != tool_rc_success) {
goto tpm2_policyauthorizenv_free_name1;