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245 lines
7.7 KiB
245 lines
7.7 KiB
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Tests for firmware vboot_common.c
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "test_common.h"
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#include "utility.h"
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#include "vboot_common.h"
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/*
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* Test struct packing for vboot_struct.h structs which are passed between
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* firmware and OS, or passed between different phases of firmware.
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*/
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static void StructPackingTest(void)
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{
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TEST_EQ(EXPECTED_VBPUBLICKEY_SIZE, sizeof(VbPublicKey),
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"sizeof(VbPublicKey)");
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TEST_EQ(EXPECTED_VBSIGNATURE_SIZE, sizeof(VbSignature),
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"sizeof(VbSignature)");
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TEST_EQ(EXPECTED_VBKEYBLOCKHEADER_SIZE, sizeof(VbKeyBlockHeader),
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"sizeof(VbKeyBlockHeader)");
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TEST_EQ(EXPECTED_VBFIRMWAREPREAMBLEHEADER2_0_SIZE,
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sizeof(VbFirmwarePreambleHeader2_0),
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"sizeof(VbFirmwarePreambleHeader2_0)");
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TEST_EQ(EXPECTED_VBFIRMWAREPREAMBLEHEADER2_1_SIZE,
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sizeof(VbFirmwarePreambleHeader),
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"sizeof(VbFirmwarePreambleHeader)");
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TEST_EQ(EXPECTED_VBKERNELPREAMBLEHEADER2_2_SIZE,
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sizeof(VbKernelPreambleHeader),
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"sizeof(VbKernelPreambleHeader)");
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TEST_EQ(VB_SHARED_DATA_HEADER_SIZE_V1,
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(long)&((VbSharedDataHeader*)NULL)->recovery_reason,
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"sizeof(VbSharedDataHeader) V1");
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TEST_EQ(VB_SHARED_DATA_HEADER_SIZE_V2,
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sizeof(VbSharedDataHeader),
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"sizeof(VbSharedDataHeader) V2");
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}
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/* Test array size macro */
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static void ArraySizeTest(void)
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{
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uint8_t arr1[12];
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uint32_t arr2[7];
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uint64_t arr3[9];
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TEST_EQ(ARRAY_SIZE(arr1), 12, "ARRAYSIZE(uint8_t)");
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TEST_EQ(ARRAY_SIZE(arr2), 7, "ARRAYSIZE(uint32_t)");
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TEST_EQ(ARRAY_SIZE(arr3), 9, "ARRAYSIZE(uint64_t)");
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}
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/* Helper functions not dependent on specific key sizes */
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static void VerifyHelperFunctions(void)
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{
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{
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uint8_t *p = (uint8_t *)VerifyHelperFunctions;
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TEST_EQ((int)OffsetOf(p, p), 0, "OffsetOf() equal");
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TEST_EQ((int)OffsetOf(p, p+10), 10, "OffsetOf() positive");
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TEST_EQ((int)OffsetOf(p, p+0x12345678), 0x12345678,
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"OffsetOf() large");
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}
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{
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VbPublicKey k = {sizeof(k), 2, 3, 4};
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TEST_EQ((int)OffsetOf(&k, GetPublicKeyData(&k)), sizeof(k),
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"GetPublicKeyData() adjacent");
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TEST_EQ((int)OffsetOf(&k, GetPublicKeyDataC(&k)), sizeof(k),
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"GetPublicKeyDataC() adjacent");
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}
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{
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VbPublicKey k = {123, 2, 3, 4};
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TEST_EQ((int)OffsetOf(&k, GetPublicKeyData(&k)), 123,
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"GetPublicKeyData() spaced");
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TEST_EQ((int)OffsetOf(&k, GetPublicKeyDataC(&k)), 123,
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"GetPublicKeyDataC() spaced");
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}
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{
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uint8_t *p = (uint8_t *)VerifyHelperFunctions;
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TEST_EQ(VerifyMemberInside(p, 20, p, 6, 11, 3), 0,
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"MemberInside ok 1");
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TEST_EQ(VerifyMemberInside(p, 20, p+4, 4, 8, 4), 0,
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"MemberInside ok 2");
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TEST_EQ(VerifyMemberInside(p, 20, p-4, 4, 8, 4), 1,
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"MemberInside member before parent");
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TEST_EQ(VerifyMemberInside(p, 20, p+20, 4, 8, 4), 1,
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"MemberInside member after parent");
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TEST_EQ(VerifyMemberInside(p, 20, p, 21, 0, 0), 1,
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"MemberInside member too big");
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TEST_EQ(VerifyMemberInside(p, 20, p, 4, 21, 0), 1,
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"MemberInside data after parent");
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TEST_EQ(VerifyMemberInside(p, 20, p, 4, (uint64_t)-1, 0), 1,
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"MemberInside data before parent");
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TEST_EQ(VerifyMemberInside(p, 20, p, 4, 4, 17), 1,
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"MemberInside data too big");
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TEST_EQ(VerifyMemberInside(p, (uint64_t)-1,
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p+(uint64_t)-10, 12, 5, 0), 1,
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"MemberInside wraparound 1");
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TEST_EQ(VerifyMemberInside(p, (uint64_t)-1,
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p+(uint64_t)-10, 5, 12, 0), 1,
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"MemberInside wraparound 2");
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TEST_EQ(VerifyMemberInside(p, (uint64_t)-1,
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p+(uint64_t)-10, 5, 0, 12), 1,
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"MemberInside wraparound 3");
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}
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{
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VbPublicKey k = {sizeof(k), 128, 0, 0};
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TEST_EQ(VerifyPublicKeyInside(&k, sizeof(k)+128, &k), 0,
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"PublicKeyInside ok 1");
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TEST_EQ(VerifyPublicKeyInside(&k - 1, 2*sizeof(k)+128, &k), 0,
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"PublicKeyInside ok 2");
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TEST_EQ(VerifyPublicKeyInside(&k, 128, &k), 1,
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"PublicKeyInside key too big");
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}
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{
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VbPublicKey k = {100, 4, 0, 0};
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TEST_EQ(VerifyPublicKeyInside(&k, 99, &k), 1,
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"PublicKeyInside offset too big");
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}
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{
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VbSignature s = {sizeof(s), 128, 2000};
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TEST_EQ(VerifySignatureInside(&s, sizeof(s)+128, &s), 0,
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"SignatureInside ok 1");
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TEST_EQ(VerifySignatureInside(&s - 1, 2*sizeof(s)+128, &s), 0,
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"SignatureInside ok 2");
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TEST_EQ(VerifySignatureInside(&s, 128, &s), 1,
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"SignatureInside sig too big");
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}
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{
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VbSignature s = {100, 4, 0};
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TEST_EQ(VerifySignatureInside(&s, 99, &s), 1,
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"SignatureInside offset too big");
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}
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}
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/* Public key utility functions */
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static void PublicKeyTest(void)
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{
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VbPublicKey k[3];
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VbPublicKey j[5];
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/* Fill some bits of the public key data */
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Memset(j, 0, sizeof(j));
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Memset(k, 0x42, sizeof(k));
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k[1].key_size = 12345;
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k[2].key_version = 67;
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PublicKeyInit(k, (uint8_t*)(k + 1), 2 * sizeof(VbPublicKey));
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TEST_EQ(k->key_offset, sizeof(VbPublicKey), "PublicKeyInit key_offset");
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TEST_EQ(k->key_size, 2 * sizeof(VbPublicKey), "PublicKeyInit key_size");
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TEST_EQ(k->algorithm, kNumAlgorithms, "PublicKeyInit algorithm");
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TEST_EQ(k->key_version, 0, "PublicKeyInit key_version");
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/* Set algorithm and version, so we can tell if they get copied */
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k->algorithm = 3;
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k->key_version = 21;
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/* Copying to a smaller destination should fail */
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PublicKeyInit(j, (uint8_t*)(j + 1), 2 * sizeof(VbPublicKey) - 1);
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TEST_NEQ(0, PublicKeyCopy(j, k), "PublicKeyCopy too small");
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/* Copying to same or larger size should succeed */
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PublicKeyInit(j, (uint8_t*)(j + 2), 2 * sizeof(VbPublicKey) + 1);
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TEST_EQ(0, PublicKeyCopy(j, k), "PublicKeyCopy same");
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/* Offset in destination shouldn't have been modified */
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TEST_EQ(j->key_offset, 2 * sizeof(VbPublicKey),
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"PublicKeyCopy key_offset");
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/* Size should have been reduced to match the source */
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TEST_EQ(k->key_size, 2 * sizeof(VbPublicKey), "PublicKeyCopy key_size");
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/* Other fields should have been copied */
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TEST_EQ(k->algorithm, j->algorithm, "PublicKeyCopy algorithm");
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TEST_EQ(k->key_version, j->key_version, "PublicKeyCopy key_version");
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/* Data should have been copied */
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TEST_EQ(0,
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Memcmp(GetPublicKeyData(k), GetPublicKeyData(j), k->key_size),
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"PublicKeyCopy data");
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}
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/* VbSharedData utility tests */
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static void VbSharedDataTest(void)
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{
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uint8_t buf[VB_SHARED_DATA_MIN_SIZE + 1];
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VbSharedDataHeader* d = (VbSharedDataHeader*)buf;
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TEST_NEQ(VBOOT_SUCCESS,
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VbSharedDataInit(d, sizeof(VbSharedDataHeader) - 1),
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"VbSharedDataInit too small");
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TEST_NEQ(VBOOT_SUCCESS,
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VbSharedDataInit(d, VB_SHARED_DATA_MIN_SIZE - 1),
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"VbSharedDataInit too small 2");
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TEST_NEQ(VBOOT_SUCCESS,
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VbSharedDataInit(NULL, VB_SHARED_DATA_MIN_SIZE),
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"VbSharedDataInit null");
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Memset(buf, 0x68, sizeof(buf));
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TEST_EQ(VBOOT_SUCCESS, VbSharedDataInit(d, VB_SHARED_DATA_MIN_SIZE),
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"VbSharedDataInit");
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/* Check fields that should have been initialized */
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TEST_EQ(d->magic, VB_SHARED_DATA_MAGIC, "VbSharedDataInit magic");
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TEST_EQ(d->struct_version, VB_SHARED_DATA_VERSION,
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"VbSharedDataInit version");
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TEST_EQ(d->struct_size, sizeof(VbSharedDataHeader),
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"VbSharedDataInit struct_size");
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TEST_EQ(d->data_size, VB_SHARED_DATA_MIN_SIZE,
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"VbSharedDataInit data_size");
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TEST_EQ(d->data_used, d->struct_size, "VbSharedDataInit data_used");
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TEST_EQ(d->firmware_index, 0xFF, "VbSharedDataInit firmware index");
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/* Sample some other fields to make sure they were zeroed */
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TEST_EQ(d->flags, 0, "VbSharedDataInit firmware flags");
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TEST_EQ(d->lk_call_count, 0, "VbSharedDataInit lk_call_count");
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TEST_EQ(d->kernel_version_lowest, 0,
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"VbSharedDataInit kernel_version_lowest");
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TEST_NEQ(VBOOT_SUCCESS, VbSharedDataSetKernelKey(NULL, NULL),
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"VbSharedDataSetKernelKey null");
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}
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int main(int argc, char* argv[])
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{
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StructPackingTest();
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ArraySizeTest();
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VerifyHelperFunctions();
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PublicKeyTest();
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VbSharedDataTest();
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if (vboot_api_stub_check_memory())
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return 255;
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return gTestSuccess ? 0 : 255;
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}
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