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-rw-r--r--src/shared/tpm2-event-log.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/shared/tpm2-event-log.c b/src/shared/tpm2-event-log.c
new file mode 100644
index 0000000..2e23846
--- /dev/null
+++ b/src/shared/tpm2-event-log.c
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "tpm2-event-log.h"
+
+#include "sort-util.h"
+
+typedef struct tpm2_log_event_type_info {
+ uint32_t event_type;
+ const char *name;
+} tpm2_log_event_type_info;
+
+static tpm2_log_event_type_info tpm2_log_event_type_table[] = {
+ /* Unfortunately the types are defined all over the place, hence we are not using a dense table
+ * here.
+ *
+ * Keep this sorted by event type, so that we can do bisection! */
+ { EV_PREBOOT_CERT, "preboot-cert" },
+ { EV_POST_CODE, "post-code" },
+ { EV_NO_ACTION, "no-action" },
+ { EV_SEPARATOR, "separator" },
+ { EV_ACTION, "action" },
+ { EV_EVENT_TAG, "event-tag" },
+ { EV_S_CRTM_CONTENTS, "s-crtm-contents" },
+ { EV_S_CRTM_VERSION, "s-crtm-version" },
+ { EV_CPU_MICROCODE, "cpu-microcode" },
+ { EV_PLATFORM_CONFIG_FLAGS, "platform-config-flags" },
+ { EV_TABLE_OF_DEVICES, "table-of-devices" },
+ { EV_COMPACT_HASH, "compact-hash" },
+ { EV_IPL, "ipl" },
+ { EV_IPL_PARTITION_DATA, "ipl-partition-data" },
+ { EV_NONHOST_CODE, "nonhost-code" },
+ { EV_NONHOST_CONFIG, "nonhost-config" },
+ { EV_NONHOST_INFO, "nonhost-info" },
+ { EV_OMIT_BOOT_DEVICE_EVENTS, "omit-boot-device-events" },
+ /* omitting EV_EFI_EVENT_BASE, since its not an event, but just a base value for other events */
+ { EV_EFI_VARIABLE_DRIVER_CONFIG, "efi-variable-driver-config" },
+ { EV_EFI_VARIABLE_BOOT, "efi-variable-boot" },
+ { EV_EFI_BOOT_SERVICES_APPLICATION, "efi-boot-services-application" },
+ { EV_EFI_BOOT_SERVICES_DRIVER, "efi-boot-services-driver" },
+ { EV_EFI_RUNTIME_SERVICES_DRIVER, "efi-runtime-services-driver" },
+ { EV_EFI_GPT_EVENT, "efi-gpt-event" },
+ { EV_EFI_ACTION, "efi-action" },
+ { EV_EFI_PLATFORM_FIRMWARE_BLOB, "efi-platform-firmware-blob" },
+ { EV_EFI_HANDOFF_TABLES, "efi-handoff-tables" },
+ { EV_EFI_PLATFORM_FIRMWARE_BLOB2, "efi-platform-firmware-blob2" },
+ { EV_EFI_HANDOFF_TABLES2, "efi-handoff-tables" },
+ { EV_EFI_VARIABLE_BOOT2, "efi-variable-boot2" },
+ { EV_EFI_HCRTM_EVENT, "efi-hcrtm-event" },
+ { EV_EFI_VARIABLE_AUTHORITY, "efi-variable-authority" },
+ { EV_EFI_SPDM_FIRMWARE_BLOB, "efi-spdm-firmware-blob" },
+ { EV_EFI_SPDM_FIRMWARE_CONFIG, "efi-spdm-firmware-config" },
+};
+
+static int tpm2_log_event_type_info_cmp(const tpm2_log_event_type_info *a, const tpm2_log_event_type_info *b) {
+ return CMP(ASSERT_PTR(a)->event_type, ASSERT_PTR(b)->event_type);
+}
+
+const char *tpm2_log_event_type_to_string(uint32_t type) {
+
+ tpm2_log_event_type_info *found, key = {
+ .event_type = type,
+ };
+
+ found = typesafe_bsearch(&key, tpm2_log_event_type_table, ELEMENTSOF(tpm2_log_event_type_table), tpm2_log_event_type_info_cmp);
+
+ return found ? found->name : NULL;
+}