| /* Copyright (c) 2013 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 TPM lite library |
| */ |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <tss/tcs.h> |
| /* Don't use the vboot constants, since they conflict with the TCS lib */ |
| #define VBOOT_REFERENCE_TSS_CONSTANTS_H_ |
| |
| #include "host_common.h" |
| #include "test_common.h" |
| #include "tlcl.h" |
| #include "tlcl_internal.h" |
| #include "vboot_common.h" |
| |
| /* Mock data */ |
| static char debug_info[4096]; |
| static VbError_t mock_retval; |
| |
| /* Call to mocked VbExTpmSendReceive() */ |
| struct srcall |
| { |
| const uint8_t *req; /* Request */ |
| uint8_t *rsp; /* Response */ |
| uint8_t rsp_buf[32]; /* Default response buffer, if not overridden */ |
| int req_size; /* Request size */ |
| uint32_t req_cmd; /* Request command code */ |
| int rsp_size; /* Response size */ |
| VbError_t retval; /* Value to return */ |
| }; |
| |
| #define MAXCALLS 8 |
| static struct srcall calls[MAXCALLS]; |
| static int ncalls; |
| |
| /** |
| * Reset mock data (for use before each test) |
| */ |
| static void ResetMocks(void) |
| { |
| int i; |
| |
| *debug_info = 0; |
| mock_retval = VBERROR_SUCCESS; |
| |
| memset(calls, 0, sizeof(calls)); |
| for (i = 0; i < MAXCALLS; i++) |
| calls[i].rsp = calls[i].rsp_buf; |
| ncalls = 0; |
| } |
| |
| /** |
| * Set response code and length for call <call_idx>. |
| */ |
| static void SetResponse(int call_idx, uint32_t response_code, int rsp_size) |
| { |
| struct srcall *c = calls + call_idx; |
| |
| c->rsp_size = rsp_size; |
| ToTpmUint32(c->rsp_buf + 6, response_code); |
| } |
| |
| /* Mocks */ |
| |
| VbError_t VbExTpmInit(void) |
| { |
| return mock_retval; |
| } |
| |
| |
| VbError_t VbExTpmClose(void) |
| { |
| return mock_retval; |
| } |
| |
| VbError_t VbExTpmSendReceive(const uint8_t *request, uint32_t request_length, |
| uint8_t *response, uint32_t *response_length) |
| { |
| struct srcall *c = calls + ncalls++; |
| |
| c->req = request; |
| c->req_size = request_length; |
| |
| /* Parse out the command code */ |
| FromTpmUint32(request + 6, &c->req_cmd); |
| |
| // KLUDGE - remove |
| printf("TSR [%d] 0x%x\n", ncalls-1, c->req_cmd); |
| |
| memset(response, 0, *response_length); |
| if (c->rsp_size) |
| memcpy(response, c->rsp, c->rsp_size); |
| *response_length = c->rsp_size; |
| |
| return c->retval; |
| } |
| |
| /** |
| * Test assorted tlcl functions |
| */ |
| static void TlclTest(void) |
| { |
| uint8_t buf[32], buf2[32]; |
| |
| ResetMocks(); |
| TEST_EQ(TlclLibInit(), VBERROR_SUCCESS, "Init"); |
| |
| ResetMocks(); |
| mock_retval = VBERROR_SIMULATED; |
| TEST_EQ(TlclLibInit(), mock_retval, "Init bad"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclLibClose(), VBERROR_SUCCESS, "Close"); |
| |
| ResetMocks(); |
| mock_retval = VBERROR_SIMULATED; |
| TEST_EQ(TlclLibClose(), mock_retval, "Close bad"); |
| |
| ResetMocks(); |
| ToTpmUint32(buf + 2, 123); |
| TEST_EQ(TlclPacketSize(buf), 123, "TlclPacketSize"); |
| |
| ResetMocks(); |
| ToTpmUint32(buf + 2, 10); |
| TEST_EQ(TlclSendReceive(buf, buf2, sizeof(buf2)), 0, "SendReceive"); |
| TEST_PTR_EQ(calls[0].req, buf, "SendReceive req ptr"); |
| TEST_EQ(calls[0].req_size, 10, "SendReceive size"); |
| |
| ResetMocks(); |
| calls[0].retval = VBERROR_SIMULATED; |
| ToTpmUint32(buf + 2, 10); |
| TEST_EQ(TlclSendReceive(buf, buf2, sizeof(buf2)), VBERROR_SIMULATED, |
| "SendReceive fail"); |
| |
| ResetMocks(); |
| SetResponse(0, 123, 10); |
| ToTpmUint32(buf + 2, 10); |
| TEST_EQ(TlclSendReceive(buf, buf2, sizeof(buf2)), 123, |
| "SendReceive error response"); |
| |
| // TODO: continue self test (if needed or doing) |
| // TODO: then retry doing self test |
| |
| } |
| |
| |
| /** |
| * Test send-command functions |
| */ |
| static void SendCommandTest(void) |
| { |
| ResetMocks(); |
| TEST_EQ(TlclStartup(), 0, "SaveState"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_Startup, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclSaveState(), 0, "SaveState"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_SaveState, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclResume(), 0, "Resume"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_Startup, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclSelfTestFull(), 0, "SelfTestFull"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_SelfTestFull, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclContinueSelfTest(), 0, "ContinueSelfTest"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_ContinueSelfTest, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclAssertPhysicalPresence(), 0, |
| "AssertPhysicalPresence"); |
| TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclPhysicalPresenceCMDEnable(), 0, |
| "PhysicalPresenceCMDEnable"); |
| TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclFinalizePhysicalPresence(), 0, |
| "FinalizePhysicalPresence"); |
| TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclAssertPhysicalPresenceResult(), 0, |
| "AssertPhysicalPresenceResult"); |
| TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclLockPhysicalPresence(), 0, |
| "LockPhysicalPresence"); |
| TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclIsOwned(), 0, "IsOwned"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_ReadPubek, " cmd"); |
| ResetMocks(); |
| calls[0].retval = VBERROR_SIMULATED; |
| TEST_NEQ(TlclIsOwned(), 0, "IsOwned"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclForceClear(), 0, "ForceClear"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_ForceClear, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclSetEnable(), 0, "SetEnable"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_PhysicalEnable, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclClearEnable(), 0, "ClearEnable"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_PhysicalDisable, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclSetDeactivated(0), 0, "SetDeactivated"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_PhysicalSetDeactivated, " cmd"); |
| } |
| |
| /** |
| * NV spaces test |
| * |
| * TODO: check params/data read/written. |
| */ |
| static void ReadWriteTest(void) |
| { |
| uint8_t buf[32]; |
| |
| ResetMocks(); |
| TEST_EQ(TlclDefineSpace(1, 2, 3), 0, "DefineSpace"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_DefineSpace, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclSetNvLocked(), 0, "SetNvLocked"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_DefineSpace, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclWrite(1, buf, 3), 0, "Write"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_WriteValue, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclRead(1, buf, 3), 0, "Read"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_ReadValue, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclWriteLock(1), 0, "WriteLock"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_WriteValue, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclReadLock(1), 0, "ReadLock"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_ReadValue, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclSetGlobalLock(), 0, "SetGlobalLock"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_NV_WriteValue, " cmd"); |
| } |
| |
| /** |
| * Test PCR funcs |
| * |
| * TODO: check params/data read/written. |
| */ |
| static void PcrTest(void) |
| { |
| uint8_t buf[kPcrDigestLength], buf2[kPcrDigestLength]; |
| |
| ResetMocks(); |
| TEST_EQ(TlclPCRRead(1, buf, kPcrDigestLength), 0, "PCRRead"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_PcrRead, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclPCRRead(1, buf, kPcrDigestLength - 1), TPM_E_IOERROR, |
| "PCRRead too small"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclExtend(1, buf, buf2), 0, "Extend"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_Extend, " cmd"); |
| } |
| |
| /** |
| * Test flags / capabilities |
| * |
| * TODO: check params/data read/written. |
| */ |
| static void FlagsTest(void) |
| { |
| TPM_PERMANENT_FLAGS pflags; |
| TPM_STCLEAR_FLAGS vflags; |
| uint8_t disable = 0, deactivated = 0, nvlocked = 0; |
| uint32_t u; |
| uint8_t buf[32]; |
| |
| ResetMocks(); |
| TEST_EQ(TlclGetPermanentFlags(&pflags), 0, "GetPermanentFlags"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_GetCapability, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclGetSTClearFlags(&vflags), 0, "GetSTClearFlags"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_GetCapability, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclGetFlags(NULL, NULL, NULL), 0, "GetFlags NULL"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_GetCapability, " cmd"); |
| ResetMocks(); |
| TEST_EQ(TlclGetFlags(&disable, &deactivated, &nvlocked), 0, "GetFlags"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclGetPermissions(1, &u), 0, "GetPermissions"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_GetCapability, " cmd"); |
| |
| ResetMocks(); |
| TEST_EQ(TlclGetOwnership(buf), 0, "GetOwnership"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_GetCapability, " cmd"); |
| } |
| |
| /** |
| * Test random |
| * |
| * TODO: check params/data read/written. |
| * TODO: check overflow tests. |
| */ |
| static void RandomTest(void) |
| { |
| uint8_t buf[32]; |
| uint32_t size; |
| |
| ResetMocks(); |
| size = sizeof(buf); |
| TEST_EQ(TlclGetRandom(buf, sizeof(buf), &size), 0, "GetRandom"); |
| TEST_EQ(calls[0].req_cmd, TPM_ORD_GetRandom, " cmd"); |
| TEST_EQ(size, 0, " size 0"); |
| } |
| |
| int main(void) |
| { |
| TlclTest(); |
| SendCommandTest(); |
| ReadWriteTest(); |
| PcrTest(); |
| FlagsTest(); |
| RandomTest(); |
| |
| return gTestSuccess ? 0 : 255; |
| } |