diff options
Diffstat (limited to 'test/rollback_entropy.c')
| -rw-r--r-- | test/rollback_entropy.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/test/rollback_entropy.c b/test/rollback_entropy.c deleted file mode 100644 index 788fab2572..0000000000 --- a/test/rollback_entropy.c +++ /dev/null @@ -1,194 +0,0 @@ -/* Copyright 2020 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "rollback.h" -#include "rollback_private.h" -#include "string.h" -#include "system.h" -#include "test_util.h" - -static const uint32_t VALID_ROLLBACK_COOKIE = 0x0b112233; -static const uint32_t UNINITIALIZED_ROLLBACK_COOKIE = 0xffffffff; - -static const uint8_t FAKE_ENTROPY[] = { - 0xff, 0xff, 0xff, 0xff -}; - -/* - * Generated by concatenating 32-bytes (256-bits) of zeros with the 4 bytes - * of FAKE_ENTROPY and computing SHA256 sum: - * - * echo -n -e '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\ - * '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\ - * '\xFF\xFF\xFF\xFF' | sha256sum - * - * 890ed82cf09f22243bdc4252e4d79c8a9810c1391f455dce37a7b732eb0a0e4f - */ -#define EXPECTED_SECRET \ - 0x89, 0x0e, 0xd8, 0x2c, 0xf0, 0x9f, 0x22, 0x24, 0x3b, 0xdc, 0x42, \ - 0x52, 0xe4, 0xd7, 0x9c, 0x8a, 0x98, 0x10, 0xc1, 0x39, 0x1f, 0x45, \ - 0x5d, 0xce, 0x37, 0xa7, 0xb7, 0x32, 0xeb, 0x0a, 0x0e, 0x4f -__maybe_unused static const uint8_t _EXPECTED_SECRET[] = { - EXPECTED_SECRET -}; -BUILD_ASSERT(sizeof(_EXPECTED_SECRET) == CONFIG_ROLLBACK_SECRET_SIZE); - -/* - * Generated by concatenating 32-bytes (256-bits) of EXPECTED_SECRET with the 4 - * bytes of FAKE_ENTROPY and computing SHA256 sum: - * - * echo -n -e '\x89\x0e\xd8\x2c\xf0\x9f\x22\x24\x3b\xdc\x42\x52\xe4\xd7\x9c'\ - * '\x8a\x98\x10\xc1\x39\x1f\x45\x5d\xce\x37\xa7\xb7\x32\xeb\x0a\x0e\x4f\xFF'\ - * '\FF\xFF' | sha256sum - * - * b5d2c08b1f9109ac5c67de15486f0ac267ef9501bd9f646f4ea80085cb08284c - */ -#define EXPECTED_SECRET2 \ - 0xb5, 0xd2, 0xc0, 0x8b, 0x1f, 0x91, 0x09, 0xac, 0x5c, 0x67, 0xde, \ - 0x15, 0x48, 0x6f, 0x0a, 0xc2, 0x67, 0xef, 0x95, 0x01, 0xbd, 0x9f, \ - 0x64, 0x6f, 0x4e, 0xa8, 0x00, 0x85, 0xcb, 0x08, 0x28, 0x4c -__maybe_unused static const uint8_t _EXPECTED_SECRET2[] = { - EXPECTED_SECRET2 -}; -BUILD_ASSERT(sizeof(_EXPECTED_SECRET2) == CONFIG_ROLLBACK_SECRET_SIZE); - -#define EXPECTED_UNINITIALIZED_ROLLBACK_SECRET \ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ - 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, -__maybe_unused static const uint8_t -_EXPECTED_UNINITIALIZED_ROLLBACK_SECRET[] = { - EXPECTED_UNINITIALIZED_ROLLBACK_SECRET -}; -BUILD_ASSERT(sizeof(_EXPECTED_UNINITIALIZED_ROLLBACK_SECRET) == - CONFIG_ROLLBACK_SECRET_SIZE); - -test_static void print_rollback(const struct rollback_data *rb_data) -{ - int i; - - ccprintf("rollback secret: 0x"); - for (i = 0; i < sizeof(rb_data->secret); i++) - ccprintf("%02x", rb_data->secret[i]); - ccprintf("\n"); - - ccprintf("rollback id: %d\n", rb_data->id); - ccprintf("rollback cookie: %0x\n", rb_data->cookie); - ccprintf("rollback_min_version: %d\n", rb_data->rollback_min_version); -} - -test_static int check_equal(const struct rollback_data *actual, - const struct rollback_data *expected) -{ - int rv = memcmp(actual->secret, expected->secret, - sizeof(*actual->secret)); - TEST_EQ(rv, 0, "%d"); - TEST_EQ(actual->rollback_min_version, expected->rollback_min_version, - "%d"); - TEST_EQ(actual->id, expected->id, "%d"); - TEST_EQ(actual->cookie, expected->cookie, "%d"); - return EC_SUCCESS; -} - -test_static int test_add_entropy(void) -{ - int rv; - struct rollback_data rb_data; - - const struct rollback_data expected_empty = { - .id = 0, - .rollback_min_version = 0, - .secret = { 0 }, - .cookie = VALID_ROLLBACK_COOKIE - }; - - const struct rollback_data expected_uninitialized = { - .id = -1, - .rollback_min_version = -1, - .secret = { EXPECTED_UNINITIALIZED_ROLLBACK_SECRET }, - .cookie = UNINITIALIZED_ROLLBACK_COOKIE - }; - - const struct rollback_data expected_secret = { - .id = 1, - .rollback_min_version = 0, - .secret = { EXPECTED_SECRET }, - .cookie = VALID_ROLLBACK_COOKIE - }; - - const struct rollback_data expected_secret2 = { - .id = 2, - .rollback_min_version = 0, - .secret = { EXPECTED_SECRET2 }, - .cookie = VALID_ROLLBACK_COOKIE - }; - - if (system_get_image_copy() != EC_IMAGE_RO) { - ccprintf("This test is only works when running RO\n"); - return EC_ERROR_UNKNOWN; - } - - /* - * After flashing both rollback regions will be uninitialized (all - * 0xFF). During the boot process, we expect region 0 to be initialized - * by the call to rollback_get_minimum_version(). - */ - rv = read_rollback(0, &rb_data); - TEST_EQ(rv, EC_SUCCESS, "%d"); - TEST_EQ(check_equal(&rb_data, &expected_empty), EC_SUCCESS, "%d"); - - /* Immediately after boot region 1 should not yet be initialized. */ - rv = read_rollback(1, &rb_data); - TEST_EQ(rv, EC_SUCCESS, "%d"); - TEST_EQ(check_equal(&rb_data, &expected_uninitialized), EC_SUCCESS, "%d"); - - /* - * Add entropy. The result should end up being written to the unused - * region (region 1). - */ - if (IS_ENABLED(SECTION_IS_RO)) { - rv = rollback_add_entropy(FAKE_ENTROPY, sizeof(FAKE_ENTROPY)); - TEST_EQ(rv, EC_SUCCESS, "%d"); - } - - /* Validate that region 1 has been updated correctly. */ - rv = read_rollback(1, &rb_data); - TEST_EQ(rv, EC_SUCCESS, "%d"); - TEST_EQ(check_equal(&rb_data, &expected_secret), EC_SUCCESS, "%d"); - - /* Validate that region 0 has not changed. */ - rv = read_rollback(0, &rb_data); - TEST_EQ(rv, EC_SUCCESS, "%d"); - TEST_EQ(check_equal(&rb_data, &expected_empty), EC_SUCCESS, "%d"); - - /* - * Add more entropy. The result should now end up being written to - * region 0. - */ - if (IS_ENABLED(SECTION_IS_RO)) { - rv = rollback_add_entropy(FAKE_ENTROPY, sizeof(FAKE_ENTROPY)); - TEST_EQ(rv, EC_SUCCESS, "%d"); - } - - /* Check region 0. */ - rv = read_rollback(0, &rb_data); - TEST_EQ(rv, EC_SUCCESS, "%d"); - TEST_EQ(check_equal(&rb_data, &expected_secret2), EC_SUCCESS, "%d"); - - /* Check region 1 has not changed. */ - rv = read_rollback(1, &rb_data); - TEST_EQ(rv, EC_SUCCESS, "%d"); - TEST_EQ(check_equal(&rb_data, &expected_secret), EC_SUCCESS, "%d"); - - return rv; -} - -void run_test(int argc, char **argv) -{ - ccprintf("Running rollback_entropy test\n"); - RUN_TEST(test_add_entropy); - test_print_result(); -} |