On Sat, Nov 14, 2020 at 04:45:18AM +0100, Heinrich Schuchardt wrote:
Provide a minimal test for the EFI_TCG2_PROTOCOL.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de
lib/efi_selftest/Makefile | 1 + lib/efi_selftest/efi_selftest_tcg2.c | 75 ++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100644 lib/efi_selftest/efi_selftest_tcg2.c
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile index aabb743ecb..58fb43fcdf 100644 --- a/lib/efi_selftest/Makefile +++ b/lib/efi_selftest/Makefile @@ -55,6 +55,7 @@ obj-$(CONFIG_EFI_LOADER_HII) += efi_selftest_hii.o obj-$(CONFIG_EFI_RNG_PROTOCOL) += efi_selftest_rng.o obj-$(CONFIG_EFI_GET_TIME) += efi_selftest_rtc.o obj-$(CONFIG_EFI_LOAD_FILE2_INITRD) += efi_selftest_load_initrd.o +obj-$(CONFIG_EFI_TCG2_PROTOCOL) += efi_selftest_tcg2.o
ifeq ($(CONFIG_GENERATE_ACPI_TABLE),) obj-y += efi_selftest_fdt.o diff --git a/lib/efi_selftest/efi_selftest_tcg2.c b/lib/efi_selftest/efi_selftest_tcg2.c new file mode 100644 index 0000000000..dcaac34618 --- /dev/null +++ b/lib/efi_selftest/efi_selftest_tcg2.c @@ -0,0 +1,75 @@ +// SPDX-License-Identifier: GPL-2.0+ +/*
- efi_selftest_devicepath
- Copyright (c) 2020 Heinrich Schuchardt xypron.glpk@gmx.de
- Test the EFI_TCG2_PROTOCOL
- */
+#include <efi_selftest.h> +#include <efi_tcg2.h>
+static struct efi_boot_services *boottime; +static const efi_guid_t guid_tcg2 = EFI_TCG2_PROTOCOL_GUID;
+/**
- efi_st_tcg2_setup() - setup test
- @handle: handle of the loaded image
- @systable: system table
- @return: status code
- */
+static int efi_st_tcg2_setup(const efi_handle_t img_handle,
const struct efi_system_table *systable)+{
- boottime = systable->boottime;
- return EFI_ST_SUCCESS;
+}
+/**
- efi_st_tcg2_execute() - execute test
- Call the GetCapability service of the EFI_TCG2_PROTOCOL.
- Return: status code
- */
+static int efi_st_tcg2_execute(void) +{
- struct efi_tcg2_protocol *tcg2;
- struct efi_tcg2_boot_service_capability capability;
- efi_status_t ret;
- ret = boottime->locate_protocol(&guid_tcg2, NULL, (void **)&tcg2);
- if (ret != EFI_SUCCESS) {
efi_st_error("TCG2 protocol is not available.\n");return EFI_ST_FAILURE;- }
- capability.size = sizeof(struct efi_tcg2_boot_service_capability) - 1;
Nit pick sizeof(capability)
- ret = tcg2->get_capability(tcg2, &capability);
- if (ret != EFI_BUFFER_TOO_SMALL) {
efi_st_error("tcg2->get_capability on small buffer failed\n");return EFI_ST_FAILURE;- }
- capability.size = sizeof(struct efi_tcg2_boot_service_capability);
ditto
- ret = tcg2->get_capability(tcg2, &capability);
- if (ret != EFI_SUCCESS) {
efi_st_error("tcg2->get_capability failed\n");return EFI_ST_FAILURE;- }
- if (!capability.tpm_present_flag) {
efi_st_error("TPM not present\n");return EFI_ST_FAILURE;- }
- efi_st_printf("TPM supports 0x%.8x event logs\n",
capability.supported_event_logs);- return EFI_ST_SUCCESS;
+}
+EFI_UNIT_TEST(tcg2) = {
- .name = "tcg2",
- .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
- .execute = efi_st_tcg2_execute,
- .setup = efi_st_tcg2_setup,
+};
2.29.2
Acked-by: Ilias Apalodimas ilias.apalodimas@linaro.org