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/* Copyright (c) 2011 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.
*
* Tests for rollback_index functions
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define _STUB_IMPLEMENTATION_ /* So we can use memset() ourselves */
#include "rollback_index.h"
#include "test_common.h"
#include "tlcl.h"
#include "utility.h"
#include "vboot_common.h"
static char calls[16384];
static char *cnext = calls;
static int ccount = 0;
static int cfail = 0;
static uint32_t cfail_err = TPM_SUCCESS;
static TPM_PERMANENT_FLAGS mock_pflags;
static RollbackSpaceFirmware mock_rsf;
static RollbackSpaceKernel mock_rsk;
static void ResetMocks(int fail_on_call, uint32_t fail_with_err) {
cnext = calls;
ccount = 0;
cfail = fail_on_call;
cfail_err = fail_with_err;
Memset(&mock_pflags, 0, sizeof(mock_pflags));
Memset(&mock_rsf, 0, sizeof(mock_rsf));
Memset(&mock_rsk, 0, sizeof(mock_rsk));
}
/****************************************************************************/
/* Mocks for tlcl functions which log the calls made to calls[]. */
uint32_t TlclForceClear(void) {
cnext += sprintf(cnext, "TlclForceClear()\n");
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclSetEnable(void) {
cnext += sprintf(cnext, "TlclSetEnable()\n");
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclSetDeactivated(uint8_t flag) {
cnext += sprintf(cnext, "TlclSetDeactivated(%d)\n", flag);
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclWrite(uint32_t index, const void* data, uint32_t length) {
cnext += sprintf(cnext, "TlclWrite(0x%x, %d)\n", index, length);
if (FIRMWARE_NV_INDEX == index) {
TEST_EQ(length, sizeof(mock_rsf), "TlclWrite rsf size");
Memcpy(&mock_rsf, data, length);
} else if (KERNEL_NV_INDEX == index) {
TEST_EQ(length, sizeof(mock_rsk), "TlclWrite rsk size");
Memcpy(&mock_rsk, data, length);
}
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclDefineSpace(uint32_t index, uint32_t perm, uint32_t size) {
cnext += sprintf(cnext, "TlclDefineSpace(0x%x, 0x%x, %d)\n",
index, perm, size);
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclSelfTestFull(void) {
cnext += sprintf(cnext, "TlclSelfTestFull()\n");
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclGetPermanentFlags(TPM_PERMANENT_FLAGS* pflags) {
cnext += sprintf(cnext, "TlclGetPermanentFlags()\n");
Memcpy(pflags, &mock_pflags, sizeof(mock_pflags));
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclFinalizePhysicalPresence(void) {
cnext += sprintf(cnext, "TlclFinalizePhysicalPresence()\n");
mock_pflags.physicalPresenceLifetimeLock = 1;
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
uint32_t TlclSetNvLocked(void) {
cnext += sprintf(cnext, "TlclSetNvLocked()\n");
mock_pflags.nvLocked = 1;
return (++ccount == cfail) ? cfail_err : TPM_SUCCESS;
}
/****************************************************************************/
/* Tests for misc helper functions */
static void MiscTest(void) {
uint8_t buf[8];
ResetMocks(0, 0);
TEST_EQ(TPMClearAndReenable(), 0, "TPMClearAndReenable()");
TEST_STR_EQ(calls,
"TlclForceClear()\n"
"TlclSetEnable()\n"
"TlclSetDeactivated(0)\n",
"tlcl calls");
ResetMocks(0, 0);
TEST_EQ(SafeWrite(0x123, buf, 8), 0, "SafeWrite()");
TEST_STR_EQ(calls,
"TlclWrite(0x123, 8)\n",
"tlcl calls");
ResetMocks(1, TPM_E_BADINDEX);
TEST_EQ(SafeWrite(0x123, buf, 8), TPM_E_BADINDEX, "SafeWrite() bad");
TEST_STR_EQ(calls,
"TlclWrite(0x123, 8)\n",
"tlcl calls");
ResetMocks(1, TPM_E_MAXNVWRITES);
TEST_EQ(SafeWrite(0x123, buf, 8), 0, "SafeWrite() retry max writes");
TEST_STR_EQ(calls,
"TlclWrite(0x123, 8)\n"
"TlclForceClear()\n"
"TlclSetEnable()\n"
"TlclSetDeactivated(0)\n"
"TlclWrite(0x123, 8)\n",
"tlcl calls");
ResetMocks(0, 0);
TEST_EQ(SafeDefineSpace(0x123, 6, 8), 0, "SafeDefineSpace()");
TEST_STR_EQ(calls,
"TlclDefineSpace(0x123, 0x6, 8)\n",
"tlcl calls");
ResetMocks(1, TPM_E_BADINDEX);
TEST_EQ(SafeDefineSpace(0x123, 6, 8), TPM_E_BADINDEX,
"SafeDefineSpace() bad");
TEST_STR_EQ(calls,
"TlclDefineSpace(0x123, 0x6, 8)\n",
"tlcl calls");
ResetMocks(1, TPM_E_MAXNVWRITES);
TEST_EQ(SafeDefineSpace(0x123, 6, 8), 0,
"SafeDefineSpace() retry max writes");
TEST_STR_EQ(calls,
"TlclDefineSpace(0x123, 0x6, 8)\n"
"TlclForceClear()\n"
"TlclSetEnable()\n"
"TlclSetDeactivated(0)\n"
"TlclDefineSpace(0x123, 0x6, 8)\n",
"tlcl calls");
}
/****************************************************************************/
/* Tests for one-time initialization */
static void OneTimeInitTest(void) {
RollbackSpaceFirmware rsf;
RollbackSpaceKernel rsk;
/* Complete initialization */
ResetMocks(0, 0);
TEST_EQ(OneTimeInitializeTPM(&rsf, &rsk), 0, "OneTimeInitializeTPM()");
TEST_STR_EQ(calls,
"TlclSelfTestFull()\n"
"TlclGetPermanentFlags()\n"
"TlclFinalizePhysicalPresence()\n"
"TlclSetNvLocked()\n"
"TlclForceClear()\n"
"TlclSetEnable()\n"
"TlclSetDeactivated(0)\n"
/* kernel space */
"TlclDefineSpace(0x1008, 0x1, 13)\n"
"TlclWrite(0x1008, 13)\n"
/* firmware space */
"TlclDefineSpace(0x1007, 0x8001, 10)\n"
"TlclWrite(0x1007, 10)\n",
"tlcl calls");
TEST_EQ(mock_rsf.struct_version, ROLLBACK_SPACE_FIRMWARE_VERSION, "rsf ver");
TEST_EQ(mock_rsf.flags, 0, "rsf flags");
TEST_EQ(mock_rsf.fw_versions, 0, "rsf fw_versions");
TEST_EQ(mock_rsk.struct_version, ROLLBACK_SPACE_KERNEL_VERSION, "rsk ver");
TEST_EQ(mock_rsk.uid, ROLLBACK_SPACE_KERNEL_UID, "rsk uid");
TEST_EQ(mock_rsk.kernel_versions, 0, "rsk kernel_versions");
/* Physical presence already initialized */
ResetMocks(0, 0);
mock_pflags.physicalPresenceLifetimeLock = 1;
TEST_EQ(OneTimeInitializeTPM(&rsf, &rsk), 0, "OneTimeInitializeTPM()");
TEST_STR_EQ(calls,
"TlclSelfTestFull()\n"
"TlclGetPermanentFlags()\n"
"TlclSetNvLocked()\n"
"TlclForceClear()\n"
"TlclSetEnable()\n"
"TlclSetDeactivated(0)\n"
/* kernel space */
"TlclDefineSpace(0x1008, 0x1, 13)\n"
"TlclWrite(0x1008, 13)\n"
/* firmware space */
"TlclDefineSpace(0x1007, 0x8001, 10)\n"
"TlclWrite(0x1007, 10)\n",
"tlcl calls");
/* NV locking already initialized */
ResetMocks(0, 0);
mock_pflags.nvLocked = 1;
TEST_EQ(OneTimeInitializeTPM(&rsf, &rsk), 0, "OneTimeInitializeTPM()");
TEST_STR_EQ(calls,
"TlclSelfTestFull()\n"
"TlclGetPermanentFlags()\n"
"TlclFinalizePhysicalPresence()\n"
"TlclForceClear()\n"
"TlclSetEnable()\n"
"TlclSetDeactivated(0)\n"
/* kernel space */
"TlclDefineSpace(0x1008, 0x1, 13)\n"
"TlclWrite(0x1008, 13)\n"
/* firmware space */
"TlclDefineSpace(0x1007, 0x8001, 10)\n"
"TlclWrite(0x1007, 10)\n",
"tlcl calls");
/* Self test error */
ResetMocks(1, TPM_E_IOERROR);
TEST_EQ(OneTimeInitializeTPM(&rsf, &rsk), TPM_E_IOERROR,
"OneTimeInitializeTPM() selftest");
TEST_STR_EQ(calls,
"TlclSelfTestFull()\n",
"tlcl calls");
}
/* disable MSVC warnings on unused arguments */
__pragma(warning (disable: 4100))
int main(int argc, char* argv[]) {
int error_code = 0;
MiscTest();
OneTimeInitTest();
if (!gTestSuccess)
error_code = 255;
return error_code;
}
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