| #include <stdio.h> |
| #include "log.h" |
| #include "test.h" |
| #include "sapi/tpm20.h" |
| #include "sysapi_util.h" |
| #define PCR_8 8 |
| /** |
| * This program contains integration test for SAPI Tss2_Sys_PCR_Read |
| * and Tss2_Sys_PCR_Extend. This is an use case scenario on PCR extend. |
| * First, we will get the list of PCR avaliable through getcapability |
| * SAPI. Then, PCR_Read SAPI is called to list out the PCR value and |
| * PCR_Extend SAPI is called next to update the PCR value. Last, |
| * PCR_Read SAPI is called again to check the PCR values are changed. |
| */ |
| int |
| test_invoke (TSS2_SYS_CONTEXT *sapi_context) |
| { |
| TSS2_RC rc; |
| TPMI_YES_NO more_data; |
| TPMS_CAPABILITY_DATA capability_data; |
| TPMS_AUTH_COMMAND session_data; |
| TSS2_SYS_CMD_AUTHS sessions_data; |
| UINT16 i, digest_size; |
| TPML_PCR_SELECTION pcr_selection; |
| UINT32 pcr_update_counter_before_extend; |
| UINT32 pcr_update_counter_after_extend; |
| UINT8 pcr_before_extend[20]; |
| UINT8 pcr_after_extend[20]; |
| TPML_DIGEST pcr_values; |
| TPML_DIGEST_VALUES digests; |
| TPML_PCR_SELECTION pcr_selection_out; |
| TPMS_AUTH_COMMAND *session_data_array[1]; |
| |
| session_data_array[0] = &session_data; |
| sessions_data.cmdAuths = &session_data_array[0]; |
| session_data.sessionHandle = TPM_RS_PW; |
| session_data.nonce.t.size = 0; |
| session_data.hmac.t.size = 0; |
| *( (UINT8 *)((void *)&session_data.sessionAttributes ) ) = 0; |
| |
| print_log("PCR Extension tests started."); |
| rc = Tss2_Sys_GetCapability(sapi_context, 0, TPM_CAP_PCR_PROPERTIES, TPM_PT_PCR_COUNT, 1, &more_data, &capability_data, 0); |
| if (rc != TSS2_RC_SUCCESS) |
| print_fail("GetCapability FAILED! Response Code : 0x%x", rc); |
| |
| digests.count = 1; |
| digests.digests[0].hashAlg = TPM_ALG_SHA1; |
| digest_size = GetDigestSize( digests.digests[0].hashAlg ); |
| |
| for( i = 0; i < digest_size; i++ ) |
| { |
| digests.digests[0].digest.sha1[i] = (UINT8)(i % 256); |
| } |
| pcr_selection.count = 1; |
| pcr_selection.pcrSelections[0].hash = TPM_ALG_SHA1; |
| pcr_selection.pcrSelections[0].sizeofSelect = 3; |
| pcr_selection.pcrSelections[0].pcrSelect[0] = 0; |
| pcr_selection.pcrSelections[0].pcrSelect[1] = 0; |
| pcr_selection.pcrSelections[0].pcrSelect[2] = 0; |
| pcr_selection.pcrSelections[0].pcrSelect[PCR_8 / 8] = 1 << (PCR_8 % 8); |
| |
| rc = Tss2_Sys_PCR_Read(sapi_context, 0, &pcr_selection, &pcr_update_counter_before_extend, &pcr_selection_out, &pcr_values, 0); |
| if (rc != TSS2_RC_SUCCESS) |
| print_fail("PCR_Read FAILED! Response Code : 0x%x", rc); |
| memcpy(&(pcr_before_extend[0]), &(pcr_values.digests[0].t.buffer[0]), pcr_values.digests[0].t.size); |
| |
| sessions_data.cmdAuthsCount = 1; |
| sessions_data.cmdAuths[0] = &session_data; |
| rc = Tss2_Sys_PCR_Extend(sapi_context, PCR_8, &sessions_data, &digests, 0); |
| if (rc != TSS2_RC_SUCCESS) |
| print_fail("PCR_Extend FAILED! Response Code : 0x%x", rc); |
| |
| rc = Tss2_Sys_PCR_Read(sapi_context, 0, &pcr_selection, &pcr_update_counter_after_extend, &pcr_selection_out, &pcr_values, 0); |
| if (rc != TSS2_RC_SUCCESS) |
| print_fail("PCR_Read FAILED! Response Code : 0x%x", rc); |
| memcpy(&(pcr_after_extend[0]), &(pcr_values.digests[0].t.buffer[0]), pcr_values.digests[0].t.size); |
| |
| if(pcr_update_counter_before_extend == pcr_update_counter_after_extend) |
| print_fail("ERROR!! pcr_update_counter didn't change value\n"); |
| |
| if(memcmp(&(pcr_before_extend[0]), &(pcr_after_extend[0]), 20) == 0) |
| print_fail("ERROR!! PCR didn't change value\n"); |
| |
| print_log("PCR Extension Test Passed!"); |
| return 0; |
| } |
| |