1aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved. 2aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler * Use of this source code is governed by a BSD-style license that can be 3aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler * found in the LICENSE file. 4aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler * 5aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler * Tests for tpm_bootmode functions 6aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler */ 7aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 80c3ba249abb1dc60f5ebabccf84ff13206440b83Bill Richardson#include <stdint.h> 9aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#include <stdio.h> 10aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#include <stdlib.h> 11aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#include <string.h> 12aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 13aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#define _STUB_IMPLEMENTATION_ /* So we can use memset() ourselves */ 14aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 15aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#include "test_common.h" 16aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#include "utility.h" 17aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler#include "tpm_bootmode.h" 18aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 19aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spanglerextern const char* kBootStateSHA1Digests[]; 20aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 21f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson/* Last in_digest passed to TlclExtend() for each PCR */ 22f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic const uint8_t *last_in[20]; 23aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 24aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler/* Return value to pass for TlclExtend() */ 25f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic uint32_t extend_returns; 26aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 27f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson/* How many calls to TlclExtend() should one SetTPMBootModeState() make? */ 28f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic int expected_extend_count; 29f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson/* How many did we get? */ 30f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic int actual_extend_count; 31f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 32f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic GoogleBinaryBlockHeader gbb_v1 = { 33f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson .major_version = GBB_MAJOR_VER, 34f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson .minor_version = 1, 35f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson}; 36aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 37f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic GoogleBinaryBlockHeader gbb_v2 = { 38f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson .major_version = GBB_MAJOR_VER, 39f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson .minor_version = 2, 40f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson .hwid_digest = {1, 2, 3, 4,}, 41f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson}; 42aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 43f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson/* Mocked TlclExtend() function for testing */ 44f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonuint32_t TlclExtend(int pcr_num, const uint8_t *in_digest, 45f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson uint8_t *out_digest) 46f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson{ 47f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson /* Should be using correct pcr */ 48f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(pcr_num, actual_extend_count, "TlclExtend pcr_num"); 49aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 50f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson last_in[actual_extend_count] = in_digest; 51f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 52f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson actual_extend_count++; 53f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson return extend_returns; 54aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler} 55aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 56aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 57aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler/* Test setting TPM boot mode state */ 58f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonstatic void BootStateTest(void) 59f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson{ 60f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson int recdev; 61f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson int flags; 62f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson int index; 63f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson char what[128]; 64f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 65f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson /* Test all permutations of developer and recovery mode */ 66f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson for (recdev = 0; recdev < 4; recdev++) { 67f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson /* Exhaustively test all permutations of key block flags 68f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson * currently defined in vboot_struct.h (KEY_BLOCK_FLAG_*) */ 69f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson for (flags = 0; flags < 16; flags++) { 70f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson index = recdev * 3; 71f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson if (6 == flags) 72f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson index += 2; 73f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson else if (7 == flags) 74f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson index += 1; 75f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 76f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson /* Passing a null pointer for GBB */ 77f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson memset(last_in, 0, sizeof(last_in)); 78f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson actual_extend_count = 0; 79f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson expected_extend_count = 1; 80f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(SetTPMBootModeState(recdev & 2, recdev & 1, 81f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson flags, 0), 0, 82f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState return (gbb0)"); 83f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson snprintf(what, sizeof(what), 84f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState %d, 0x%x (gbb0)", 85f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson recdev, flags); 86f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_PTR_EQ(last_in[0], 87f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson kBootStateSHA1Digests[index], what); 88f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(expected_extend_count, actual_extend_count, 89f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "Expected TlclExtend call count (gbb0)"); 90f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson snprintf(what, sizeof(what), 91f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState %d, 0x%x (gbb0) PCR1", 92f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson recdev, flags); 93f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_PTR_EQ(last_in[1], NULL, what); 94f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 95f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson /* GBB v1.1 - should be exactly the same */ 96f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson memset(last_in, 0, sizeof(last_in)); 97f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson actual_extend_count = 0; 98f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson expected_extend_count = 1; 99f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(SetTPMBootModeState(recdev & 2, recdev & 1, 100f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson flags, &gbb_v1), 0, 101f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState return (gbb1)"); 102f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson snprintf(what, sizeof(what), 103f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState %d, 0x%x (gbb1)", 104f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson recdev, flags); 105f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_PTR_EQ(last_in[0], 106f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson kBootStateSHA1Digests[index], what); 107f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(expected_extend_count, actual_extend_count, 108f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "Expected TlclExtend call count (gbb1)"); 109f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson snprintf(what, sizeof(what), 110f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState %d, 0x%x (gbb1) PCR1", 111f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson recdev, flags); 112f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_PTR_EQ(last_in[1], NULL, what); 113f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 114f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson /* GBB v1.2 - should extend PCR1 with HWID digest */ 115f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson memset(last_in, 0, sizeof(last_in)); 116f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson actual_extend_count = 0; 117f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson expected_extend_count = 2; 118f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(SetTPMBootModeState(recdev & 2, recdev & 1, 119f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson flags, &gbb_v2), 0, 120f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState return (gbb2)"); 121f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson snprintf(what, sizeof(what), 122f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState %d, 0x%x (gbb2)", 123f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson recdev, flags); 124f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_PTR_EQ(last_in[0], 125f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson kBootStateSHA1Digests[index], what); 126f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(expected_extend_count, actual_extend_count, 127f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "Expected TlclExtend call count (gbb2)"); 128f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson snprintf(what, sizeof(what), 129f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState %d, 0x%x (gbb2) PCR1", 130f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson recdev, flags); 131f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_PTR_EQ(last_in[1], gbb_v2.hwid_digest, what); 132f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson } 133f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson } 134f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson 135f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson extend_returns = 1; 136f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson actual_extend_count = 0; 137f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson expected_extend_count = 1; 138f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson TEST_EQ(SetTPMBootModeState(0, 0, 0, 0), 1, 139f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson "SetTPMBootModeState error"); 140aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler} 141aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 142f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardsonint main(int argc, char *argv[]) 143f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson{ 144f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson int error_code = 0; 145aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 146f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson BootStateTest(); 147aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 148f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson if (!gTestSuccess) 149f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson error_code = 255; 150aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler 151f4f395e1ca724ef8795cfe86a9edbf15f14eacd1Bill Richardson return error_code; 152aeb8632258f240c9350716bdfe149d1f3c5c54a1Randall Spangler} 153