build(measured boot): rename measured boot makefile
With the removal of the generic functions measured_boot_init()/finish(),
measured_boot.mk becomes specific to the TCG event log backend. Change
its file name to event_log.mk.
Also, the Event Log driver is one of the backend of measured boot hence
created a separate folder for it under the measured_boot directory.
Alongside done some cosmetic changes (adding a comment and fixing
identation).
Change-Id: I4ce3300e6958728dc15ca5cced09eaa01510606c
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
diff --git a/drivers/measured_boot/event_log/event_log.c b/drivers/measured_boot/event_log/event_log.c
new file mode 100644
index 0000000..f713595
--- /dev/null
+++ b/drivers/measured_boot/event_log/event_log.c
@@ -0,0 +1,359 @@
+/*
+ * Copyright (c) 2020-2021, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <arch_helpers.h>
+
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <drivers/auth/crypto_mod.h>
+#include <drivers/measured_boot/event_log/event_log.h>
+#include <mbedtls/md.h>
+
+#include <plat/common/platform.h>
+
+/* Event Log data */
+static uint8_t event_log[EVENT_LOG_SIZE];
+
+/* End of Event Log */
+#define EVENT_LOG_END ((uintptr_t)event_log + sizeof(event_log) - 1U)
+
+CASSERT(sizeof(event_log) >= LOG_MIN_SIZE, assert_event_log_size);
+
+/* Pointer in event_log[] */
+static uint8_t *log_ptr = event_log;
+
+/* Pointer to measured_boot_data_t */
+const static measured_boot_data_t *plat_data_ptr;
+
+static uintptr_t tos_fw_config_base;
+static uintptr_t nt_fw_config_base;
+
+/* TCG_EfiSpecIdEvent */
+static const id_event_headers_t id_event_header = {
+ .header = {
+ .pcr_index = PCR_0,
+ .event_type = EV_NO_ACTION,
+ .digest = {0},
+ .event_size = (uint32_t)(sizeof(id_event_struct_t) +
+ (sizeof(id_event_algorithm_size_t) *
+ HASH_ALG_COUNT))
+ },
+
+ .struct_header = {
+ .signature = TCG_ID_EVENT_SIGNATURE_03,
+ .platform_class = PLATFORM_CLASS_CLIENT,
+ .spec_version_minor = TCG_SPEC_VERSION_MINOR_TPM2,
+ .spec_version_major = TCG_SPEC_VERSION_MAJOR_TPM2,
+ .spec_errata = TCG_SPEC_ERRATA_TPM2,
+ .uintn_size = (uint8_t)(sizeof(unsigned int) /
+ sizeof(uint32_t)),
+ .number_of_algorithms = HASH_ALG_COUNT
+ }
+};
+
+static const event2_header_t locality_event_header = {
+ /*
+ * All EV_NO_ACTION events SHALL set
+ * TCG_PCR_EVENT2.pcrIndex = 0, unless otherwise specified
+ */
+ .pcr_index = PCR_0,
+
+ /*
+ * All EV_NO_ACTION events SHALL set
+ * TCG_PCR_EVENT2.eventType = 03h
+ */
+ .event_type = EV_NO_ACTION,
+
+ /*
+ * All EV_NO_ACTION events SHALL set TCG_PCR_EVENT2.digests to all
+ * 0x00's for each allocated Hash algorithm
+ */
+ .digests = {
+ .count = HASH_ALG_COUNT
+ }
+};
+
+/*
+ * Add TCG_PCR_EVENT2 event
+ *
+ * @param[in] hash Pointer to hash data of TCG_DIGEST_SIZE bytes
+ * @param[in] image_ptr Pointer to image_data_t structure
+ *
+ * There must be room for storing this new event into the event log buffer.
+ */
+static void add_event2(const uint8_t *hash, const image_data_t *image_ptr)
+{
+ void *ptr = log_ptr;
+ uint32_t name_len;
+
+ assert(image_ptr != NULL);
+ assert(image_ptr->name != NULL);
+
+ name_len = (uint32_t)strlen(image_ptr->name) + 1U;
+
+ /* Check for space in Event Log buffer */
+ assert(((uintptr_t)ptr + (uint32_t)EVENT2_HDR_SIZE + name_len) <=
+ EVENT_LOG_END);
+
+ /*
+ * As per TCG specifications, firmware components that are measured
+ * into PCR[0] must be logged in the event log using the event type
+ * EV_POST_CODE.
+ */
+ /* TCG_PCR_EVENT2.PCRIndex */
+ ((event2_header_t *)ptr)->pcr_index = image_ptr->pcr;
+
+ /* TCG_PCR_EVENT2.EventType */
+ ((event2_header_t *)ptr)->event_type = EV_POST_CODE;
+
+ /* TCG_PCR_EVENT2.Digests.Count */
+ ptr = (uint8_t *)ptr + offsetof(event2_header_t, digests);
+ ((tpml_digest_values *)ptr)->count = HASH_ALG_COUNT;
+
+ /* TCG_PCR_EVENT2.Digests[] */
+ ptr = (uint8_t *)((uintptr_t)ptr +
+ offsetof(tpml_digest_values, digests));
+
+ /* TCG_PCR_EVENT2.Digests[].AlgorithmId */
+ ((tpmt_ha *)ptr)->algorithm_id = TPM_ALG_ID;
+
+ /* TCG_PCR_EVENT2.Digests[].Digest[] */
+ ptr = (uint8_t *)((uintptr_t)ptr + offsetof(tpmt_ha, digest));
+
+ if (hash == NULL) {
+ /* Get BL2 hash from DTB */
+ bl2_plat_get_hash(ptr);
+ } else {
+ /* Copy digest */
+ (void)memcpy(ptr, (const void *)hash, TCG_DIGEST_SIZE);
+ }
+
+ /* TCG_PCR_EVENT2.EventSize */
+ ptr = (uint8_t *)((uintptr_t)ptr + TCG_DIGEST_SIZE);
+ ((event2_data_t *)ptr)->event_size = name_len;
+
+ /* Copy event data to TCG_PCR_EVENT2.Event */
+ (void)memcpy((void *)(((event2_data_t *)ptr)->event),
+ (const void *)image_ptr->name, name_len);
+
+ /* End of event data */
+ log_ptr = (uint8_t *)((uintptr_t)ptr +
+ offsetof(event2_data_t, event) + name_len);
+}
+
+/*
+ * Init Event Log
+ *
+ * Initialises Event Log by writing Specification ID and
+ * Startup Locality events.
+ */
+void event_log_init(void)
+{
+ const char locality_signature[] = TCG_STARTUP_LOCALITY_SIGNATURE;
+ void *ptr = event_log;
+
+ /* Get pointer to platform's measured_boot_data_t structure */
+ plat_data_ptr = plat_get_measured_boot_data();
+
+ /*
+ * Add Specification ID Event first
+ *
+ * Copy TCG_EfiSpecIDEventStruct structure header
+ */
+ (void)memcpy(ptr, (const void *)&id_event_header,
+ sizeof(id_event_header));
+ ptr = (uint8_t *)((uintptr_t)ptr + sizeof(id_event_header));
+
+ /* TCG_EfiSpecIdEventAlgorithmSize structure */
+ ((id_event_algorithm_size_t *)ptr)->algorithm_id = TPM_ALG_ID;
+ ((id_event_algorithm_size_t *)ptr)->digest_size = TCG_DIGEST_SIZE;
+ ptr = (uint8_t *)((uintptr_t)ptr + sizeof(id_event_algorithm_size_t));
+
+ /*
+ * TCG_EfiSpecIDEventStruct.vendorInfoSize
+ * No vendor data
+ */
+ ((id_event_struct_data_t *)ptr)->vendor_info_size = 0;
+ ptr = (uint8_t *)((uintptr_t)ptr +
+ offsetof(id_event_struct_data_t, vendor_info));
+
+ /*
+ * The Startup Locality event should be placed in the log before
+ * any event which extends PCR[0].
+ *
+ * Ref. TCG PC Client Platform Firmware Profile 9.4.5.3
+ */
+
+ /* Copy Startup Locality Event Header */
+ (void)memcpy(ptr, (const void *)&locality_event_header,
+ sizeof(locality_event_header));
+ ptr = (uint8_t *)((uintptr_t)ptr + sizeof(locality_event_header));
+
+ /* TCG_PCR_EVENT2.Digests[].AlgorithmId */
+ ((tpmt_ha *)ptr)->algorithm_id = TPM_ALG_ID;
+
+ /* TCG_PCR_EVENT2.Digests[].Digest[] */
+ (void)memset(&((tpmt_ha *)ptr)->digest, 0, TPM_ALG_ID);
+ ptr = (uint8_t *)((uintptr_t)ptr +
+ offsetof(tpmt_ha, digest) + TCG_DIGEST_SIZE);
+
+ /* TCG_PCR_EVENT2.EventSize */
+ ((event2_data_t *)ptr)->event_size =
+ (uint32_t)sizeof(startup_locality_event_t);
+ ptr = (uint8_t *)((uintptr_t)ptr + offsetof(event2_data_t, event));
+
+ /* TCG_EfiStartupLocalityEvent.Signature */
+ (void)memcpy(ptr, (const void *)locality_signature,
+ sizeof(TCG_STARTUP_LOCALITY_SIGNATURE));
+
+ /*
+ * TCG_EfiStartupLocalityEvent.StartupLocality = 0:
+ * the platform's boot firmware
+ */
+ ((startup_locality_event_t *)ptr)->startup_locality = 0U;
+ ptr = (uint8_t *)((uintptr_t)ptr + sizeof(startup_locality_event_t));
+
+ log_ptr = (uint8_t *)ptr;
+
+ /* Add BL2 event */
+ add_event2(NULL, plat_data_ptr->images_data);
+}
+
+/*
+ * Calculate and write hash of image, configuration data, etc.
+ * to Event Log.
+ *
+ * @param[in] data_base Address of data
+ * @param[in] data_size Size of data
+ * @param[in] data_id Data ID
+ * @return:
+ * 0 = success
+ * < 0 = error
+ */
+int event_log_measure_and_record(uintptr_t data_base, uint32_t data_size,
+ uint32_t data_id)
+{
+ const image_data_t *data_ptr = plat_data_ptr->images_data;
+ unsigned char hash_data[MBEDTLS_MD_MAX_SIZE];
+ int rc;
+
+ /* Get the metadata associated with this image. */
+ while ((data_ptr->id != INVALID_ID) && (data_ptr->id != data_id)) {
+ data_ptr++;
+ }
+ assert(data_ptr->id != INVALID_ID);
+
+ if (data_id == TOS_FW_CONFIG_ID) {
+ tos_fw_config_base = data_base;
+ } else if (data_id == NT_FW_CONFIG_ID) {
+ nt_fw_config_base = data_base;
+ } else {
+ /* No action */
+ }
+
+ /* Calculate hash */
+ rc = crypto_mod_calc_hash((unsigned int)MBEDTLS_MD_ID,
+ (void *)data_base, data_size, hash_data);
+ if (rc != 0) {
+ return rc;
+ }
+
+ add_event2(hash_data, data_ptr);
+ return 0;
+}
+
+/*
+ * Finalise Event Log
+ *
+ * @param[out] log_addr Pointer to return Event Log address
+ * @param[out] log_size Pointer to return Event Log size
+ * @return:
+ * 0 = success
+ * < 0 = error code
+ */
+int event_log_finalise(uint8_t **log_addr, size_t *log_size)
+{
+ /* Event Log size */
+ size_t num_bytes = (uintptr_t)log_ptr - (uintptr_t)event_log;
+ int rc;
+
+ assert(log_addr != NULL);
+ assert(log_size != NULL);
+
+ if (nt_fw_config_base == 0UL) {
+ ERROR("%s(): %s_FW_CONFIG not loaded\n", __func__, "NT");
+ return -ENOENT;
+ }
+
+ /*
+ * Set Event Log data in NT_FW_CONFIG and
+ * get Event Log address in Non-Secure memory
+ */
+ if (plat_data_ptr->set_nt_fw_info != NULL) {
+
+ /* Event Log address in Non-Secure memory */
+ uintptr_t ns_log_addr;
+
+ rc = plat_data_ptr->set_nt_fw_info(
+ nt_fw_config_base,
+#ifdef SPD_opteed
+ (uintptr_t)event_log,
+#endif
+ num_bytes, &ns_log_addr);
+ if (rc != 0) {
+ ERROR("%s(): Unable to update %s_FW_CONFIG\n",
+ __func__, "NT");
+ return rc;
+ }
+
+ /* Copy Event Log to Non-secure memory */
+ (void)memcpy((void *)ns_log_addr, (const void *)event_log,
+ num_bytes);
+
+ /* Ensure that the Event Log is visible in Non-secure memory */
+ flush_dcache_range(ns_log_addr, num_bytes);
+
+ /* Return Event Log address in Non-Secure memory */
+ *log_addr = (uint8_t *)ns_log_addr;
+
+ } else {
+ INFO("%s(): set_%s_fw_info not set\n", __func__, "nt");
+
+ /* Return Event Log address in Secure memory */
+ *log_addr = event_log;
+ }
+
+ if (tos_fw_config_base != 0UL) {
+ if (plat_data_ptr->set_tos_fw_info != NULL) {
+
+ /* Set Event Log data in TOS_FW_CONFIG */
+ rc = plat_data_ptr->set_tos_fw_info(
+ tos_fw_config_base,
+ (uintptr_t)event_log,
+ num_bytes);
+ if (rc != 0) {
+ ERROR("%s(): Unable to update %s_FW_CONFIG\n",
+ __func__, "TOS");
+ return rc;
+ }
+ } else {
+ INFO("%s(): set_%s_fw_info not set\n", __func__, "tos");
+ }
+ } else {
+ INFO("%s(): %s_FW_CONFIG not loaded\n", __func__, "TOS");
+ }
+
+ /* Ensure that the Event Log is visible in Secure memory */
+ flush_dcache_range((uintptr_t)event_log, num_bytes);
+
+ /* Return Event Log size */
+ *log_size = num_bytes;
+
+ return 0;
+}
diff --git a/drivers/measured_boot/event_log/event_log.mk b/drivers/measured_boot/event_log/event_log.mk
new file mode 100644
index 0000000..34bde17
--- /dev/null
+++ b/drivers/measured_boot/event_log/event_log.mk
@@ -0,0 +1,52 @@
+#
+# Copyright (c) 2020-2021, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Default log level to dump the event log (LOG_LEVEL_INFO)
+EVENT_LOG_LEVEL ?= 40
+
+# TPM hash algorithm.
+# SHA-256 (or stronger) is required for all devices that are TPM 2.0 compliant.
+TPM_HASH_ALG := sha256
+
+ifeq (${TPM_HASH_ALG}, sha512)
+ MBEDTLS_MD_ID := MBEDTLS_MD_SHA512
+ TPM_ALG_ID := TPM_ALG_SHA512
+ TCG_DIGEST_SIZE := 64U
+else ifeq (${TPM_HASH_ALG}, sha384)
+ MBEDTLS_MD_ID := MBEDTLS_MD_SHA384
+ TPM_ALG_ID := TPM_ALG_SHA384
+ TCG_DIGEST_SIZE := 48U
+else
+ MBEDTLS_MD_ID := MBEDTLS_MD_SHA256
+ TPM_ALG_ID := TPM_ALG_SHA256
+ TCG_DIGEST_SIZE := 32U
+endif
+
+# Event Log length in bytes
+EVENT_LOG_SIZE := 1024
+
+# Set definitions for mbed TLS library and Measured Boot driver
+$(eval $(call add_defines,\
+ $(sort \
+ MBEDTLS_MD_ID \
+ TPM_ALG_ID \
+ TCG_DIGEST_SIZE \
+ EVENT_LOG_SIZE \
+ EVENT_LOG_LEVEL \
+)))
+
+ifeq (${HASH_ALG}, sha256)
+ ifneq (${TPM_HASH_ALG}, sha256)
+ $(eval $(call add_define,MBEDTLS_SHA512_C))
+ endif
+endif
+
+MEASURED_BOOT_SRC_DIR := drivers/measured_boot/event_log/
+
+MEASURED_BOOT_SOURCES := ${MEASURED_BOOT_SRC_DIR}event_log.c \
+ ${MEASURED_BOOT_SRC_DIR}event_print.c
+
+BL2_SOURCES += ${MEASURED_BOOT_SOURCES}
diff --git a/drivers/measured_boot/event_log/event_print.c b/drivers/measured_boot/event_log/event_print.c
new file mode 100644
index 0000000..e2ba174
--- /dev/null
+++ b/drivers/measured_boot/event_log/event_print.c
@@ -0,0 +1,265 @@
+/*
+ * Copyright (c) 2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include <common/debug.h>
+#include <drivers/measured_boot/event_log/event_log.h>
+
+#if LOG_LEVEL >= EVENT_LOG_LEVEL
+
+/*
+ * Print TCG_EfiSpecIDEventStruct
+ *
+ * @param[in/out] log_addr Pointer to Event Log
+ * @param[in/out] log_size Pointer to Event Log size
+ */
+static void id_event_print(uint8_t **log_addr, size_t *log_size)
+{
+ unsigned int i;
+ uint8_t info_size, *info_size_ptr;
+ void *ptr = *log_addr;
+ id_event_headers_t *event = (id_event_headers_t *)ptr;
+ id_event_algorithm_size_t *alg_ptr;
+ uint32_t event_size, number_of_algorithms;
+ size_t digest_len;
+#if ENABLE_ASSERTIONS
+ const uint8_t *end_ptr = (uint8_t *)((uintptr_t)*log_addr + *log_size);
+ bool valid = true;
+#endif
+
+ assert(*log_size >= sizeof(id_event_headers_t));
+
+ /* The fields of the event log header are defined to be PCRIndex of 0,
+ * EventType of EV_NO_ACTION, Digest of 20 bytes of 0, and
+ * Event content defined as TCG_EfiSpecIDEventStruct.
+ */
+ LOG_EVENT("TCG_EfiSpecIDEvent:\n");
+ LOG_EVENT(" PCRIndex : %u\n", event->header.pcr_index);
+ assert(event->header.pcr_index == (uint32_t)PCR_0);
+
+ LOG_EVENT(" EventType : %u\n", event->header.event_type);
+ assert(event->header.event_type == EV_NO_ACTION);
+
+ LOG_EVENT(" Digest :");
+ for (i = 0U; i < sizeof(event->header.digest); ++i) {
+ uint8_t val = event->header.digest[i];
+
+ (void)printf(" %02x", val);
+ if ((i & U(0xF)) == 0U) {
+ (void)printf("\n");
+ LOG_EVENT("\t\t :");
+ }
+#if ENABLE_ASSERTIONS
+ if (val != 0U) {
+ valid = false;
+ }
+#endif
+ }
+ if ((i & U(0xF)) != 0U) {
+ (void)printf("\n");
+ }
+
+ assert(valid);
+
+ /* EventSize */
+ event_size = event->header.event_size;
+ LOG_EVENT(" EventSize : %u\n", event_size);
+
+ LOG_EVENT(" Signature : %s\n",
+ event->struct_header.signature);
+ LOG_EVENT(" PlatformClass : %u\n",
+ event->struct_header.platform_class);
+ LOG_EVENT(" SpecVersion : %u.%u.%u\n",
+ event->struct_header.spec_version_major,
+ event->struct_header.spec_version_minor,
+ event->struct_header.spec_errata);
+ LOG_EVENT(" UintnSize : %u\n",
+ event->struct_header.uintn_size);
+
+ /* NumberOfAlgorithms */
+ number_of_algorithms = event->struct_header.number_of_algorithms;
+ LOG_EVENT(" NumberOfAlgorithms : %u\n", number_of_algorithms);
+
+ /* Address of DigestSizes[] */
+ alg_ptr = event->struct_header.digest_size;
+
+ /* Size of DigestSizes[] */
+ digest_len = number_of_algorithms * sizeof(id_event_algorithm_size_t);
+ assert(((uintptr_t)alg_ptr + digest_len) <= (uintptr_t)end_ptr);
+
+ LOG_EVENT(" DigestSizes :\n");
+ for (i = 0U; i < number_of_algorithms; ++i) {
+ LOG_EVENT(" #%u AlgorithmId : SHA", i);
+ uint16_t algorithm_id = alg_ptr[i].algorithm_id;
+
+ switch (algorithm_id) {
+ case TPM_ALG_SHA256:
+ (void)printf("256\n");
+ break;
+ case TPM_ALG_SHA384:
+ (void)printf("384\n");
+ break;
+ case TPM_ALG_SHA512:
+ (void)printf("512\n");
+ break;
+ default:
+ (void)printf("?\n");
+ ERROR("Algorithm 0x%x not found\n", algorithm_id);
+ assert(false);
+ }
+
+ LOG_EVENT(" DigestSize : %u\n",
+ alg_ptr[i].digest_size);
+ }
+
+ /* Address of VendorInfoSize */
+ info_size_ptr = (uint8_t *)((uintptr_t)alg_ptr + digest_len);
+ assert((uintptr_t)info_size_ptr <= (uintptr_t)end_ptr);
+
+ info_size = *info_size_ptr++;
+ LOG_EVENT(" VendorInfoSize : %u\n", info_size);
+
+ /* Check VendorInfo end address */
+ assert(((uintptr_t)info_size_ptr + info_size) <= (uintptr_t)end_ptr);
+
+ /* Check EventSize */
+ assert(event_size == (sizeof(id_event_struct_t) +
+ digest_len + info_size));
+ if (info_size != 0U) {
+ LOG_EVENT(" VendorInfo :");
+ for (i = 0U; i < info_size; ++i) {
+ (void)printf(" %02x", *info_size_ptr++);
+ }
+ (void)printf("\n");
+ }
+
+ *log_size -= (uintptr_t)info_size_ptr - (uintptr_t)*log_addr;
+ *log_addr = info_size_ptr;
+}
+
+/*
+ * Print TCG_PCR_EVENT2
+ *
+ * @param[in/out] log_addr Pointer to Event Log
+ * @param[in/out] log_size Pointer to Event Log size
+ */
+static void event2_print(uint8_t **log_addr, size_t *log_size)
+{
+ uint32_t event_size, count;
+ size_t sha_size, digests_size = 0U;
+ void *ptr = *log_addr;
+#if ENABLE_ASSERTIONS
+ const uint8_t *end_ptr = (uint8_t *)((uintptr_t)*log_addr + *log_size);
+#endif
+
+ assert(*log_size >= sizeof(event2_header_t));
+
+ LOG_EVENT("PCR_Event2:\n");
+ LOG_EVENT(" PCRIndex : %u\n",
+ ((event2_header_t *)ptr)->pcr_index);
+ LOG_EVENT(" EventType : %u\n",
+ ((event2_header_t *)ptr)->event_type);
+
+ count = ((event2_header_t *)ptr)->digests.count;
+ LOG_EVENT(" Digests Count : %u\n", count);
+
+ /* Address of TCG_PCR_EVENT2.Digests[] */
+ ptr = (uint8_t *)ptr + sizeof(event2_header_t);
+ assert(((uintptr_t)ptr <= (uintptr_t)end_ptr) && (count != 0U));
+
+ for (unsigned int i = 0U; i < count; ++i) {
+ /* Check AlgorithmId address */
+ assert(((uintptr_t)ptr +
+ offsetof(tpmt_ha, digest)) <= (uintptr_t)end_ptr);
+
+ LOG_EVENT(" #%u AlgorithmId : SHA", i);
+ switch (((tpmt_ha *)ptr)->algorithm_id) {
+ case TPM_ALG_SHA256:
+ sha_size = SHA256_DIGEST_SIZE;
+ (void)printf("256\n");
+ break;
+ case TPM_ALG_SHA384:
+ sha_size = SHA384_DIGEST_SIZE;
+ (void)printf("384\n");
+ break;
+ case TPM_ALG_SHA512:
+ sha_size = SHA512_DIGEST_SIZE;
+ (void)printf("512\n");
+ break;
+ default:
+ (void)printf("?\n");
+ ERROR("Algorithm 0x%x not found\n",
+ ((tpmt_ha *)ptr)->algorithm_id);
+ panic();
+ }
+
+ /* End of Digest[] */
+ ptr = (uint8_t *)((uintptr_t)ptr + offsetof(tpmt_ha, digest));
+ assert(((uintptr_t)ptr + sha_size) <= (uintptr_t)end_ptr);
+
+ /* Total size of all digests */
+ digests_size += sha_size;
+
+ LOG_EVENT(" Digest :");
+ for (unsigned int j = 0U; j < sha_size; ++j) {
+ (void)printf(" %02x", *(uint8_t *)ptr++);
+ if ((j & U(0xF)) == U(0xF)) {
+ (void)printf("\n");
+ if (j < (sha_size - 1U)) {
+ LOG_EVENT("\t\t :");
+ }
+ }
+ }
+ }
+
+ /* TCG_PCR_EVENT2.EventSize */
+ assert(((uintptr_t)ptr + offsetof(event2_data_t, event)) <= (uintptr_t)end_ptr);
+
+ event_size = ((event2_data_t *)ptr)->event_size;
+ LOG_EVENT(" EventSize : %u\n", event_size);
+
+ /* Address of TCG_PCR_EVENT2.Event[EventSize] */
+ ptr = (uint8_t *)((uintptr_t)ptr + offsetof(event2_data_t, event));
+
+ /* End of TCG_PCR_EVENT2.Event[EventSize] */
+ assert(((uintptr_t)ptr + event_size) <= (uintptr_t)end_ptr);
+
+ if ((event_size == sizeof(startup_locality_event_t)) &&
+ (strcmp((const char *)ptr, TCG_STARTUP_LOCALITY_SIGNATURE) == 0)) {
+ LOG_EVENT(" Signature : %s\n",
+ ((startup_locality_event_t *)ptr)->signature);
+ LOG_EVENT(" StartupLocality : %u\n",
+ ((startup_locality_event_t *)ptr)->startup_locality);
+ } else {
+ LOG_EVENT(" Event : %s\n", (uint8_t *)ptr);
+ }
+
+ *log_size -= (uintptr_t)ptr + event_size - (uintptr_t)*log_addr;
+ *log_addr = (uint8_t *)ptr + event_size;
+}
+#endif /* LOG_LEVEL >= EVENT_LOG_LEVEL */
+
+/*
+ * Print Event Log
+ *
+ * @param[in] log_addr Pointer to Event Log
+ * @param[in] log_size Event Log size
+ */
+void dump_event_log(uint8_t *log_addr, size_t log_size)
+{
+#if LOG_LEVEL >= EVENT_LOG_LEVEL
+ assert(log_addr != NULL);
+
+ /* Print TCG_EfiSpecIDEvent */
+ id_event_print(&log_addr, &log_size);
+
+ while (log_size != 0U) {
+ event2_print(&log_addr, &log_size);
+ }
+#endif
+}