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efi_selftest: unit test for EFI Conformance Profile Table

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Add a new unit test to test the integrity of the
EFI Conformance Profile Table.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Heinrich Schuchardt 2022-09-03 15:58:19 +02:00
parent b33f246c0b
commit 1e30e377a6
2 changed files with 77 additions and 0 deletions
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1
lib/efi_selftest/Makefile
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@ -49,6 +49,7 @@ efi_selftest_variables.o \
efi_selftest_variables_runtime.o \
efi_selftest_watchdog.o
obj-$(CONFIG_EFI_ECPT) += efi_selftest_ecpt.o
obj-$(CONFIG_NET) += efi_selftest_snp.o
obj-$(CONFIG_EFI_DEVICE_PATH_TO_TEXT) += efi_selftest_devicepath.o

76
lib/efi_selftest/efi_selftest_ecpt.c Normal file
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@ -0,0 +1,76 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_fdt
*
* Copyright (c) 2022 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* Check the EFI_CONFORMANCE_PROFILE_TABLE
*/
#include <efi_selftest.h>
static const efi_guid_t guid_ecpt = EFI_CONFORMANCE_PROFILES_TABLE_GUID;
static const efi_guid_t guid_ebbr_2_0 = EFI_CONFORMANCE_PROFILE_EBBR_2_0_GUID;
/*
* ecpt_find_guid() - find GUID in EFI Conformance Profile Table
*
* @ecpt: EFI Conformance Profile Table
* @guid: GUID to find
* Return: EFI_ST_SUCCESS for success
*/
static int ecpt_find_guid(struct efi_conformance_profiles_table *ecpt,
const efi_guid_t *guid) {
int i;
for (i = 0; i < ecpt->number_of_profiles; ++i) {
if (!memcmp(&ecpt->conformance_profiles[i], guid, 16))
return EFI_ST_SUCCESS;
}
efi_st_error("GUID %pU not found\n", guid);
return EFI_ST_FAILURE;
}
/*
* Execute unit test.
*
* Return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
struct efi_conformance_profiles_table *ecpt;
int expected_entries = 0;
ecpt = efi_st_get_config_table(&guid_ecpt);
if (!ecpt) {
efi_st_error("Missing EFI Conformance Profile Table\n");
return EFI_ST_FAILURE;
}
if (ecpt->version != EFI_CONFORMANCE_PROFILES_TABLE_VERSION) {
efi_st_error("Wrong table version\n");
return EFI_ST_FAILURE;
}
if (CONFIG_IS_ENABLED(EFI_EBBR_2_0_CONFORMANCE)) {
++expected_entries;
if (ecpt_find_guid(ecpt, &guid_ebbr_2_0))
return EFI_ST_FAILURE;
}
if (ecpt->number_of_profiles != expected_entries) {
efi_st_error("Expected %d entries, found %d\n",
expected_entries, ecpt->number_of_profiles);
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(ecpt) = {
.name = "conformance profile table",
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
.execute = execute,
};