/* SPDX-License-Identifier: BSD-2-Clause */ /*********************************************************************** * Copyright (c) 2017-2018, Intel Corporation * * All rights reserved. ***********************************************************************/ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include #include #include "tss2_mu.h" #include "util/tss2_endian.h" /* * Success case */ static void tpmu_marshal_success(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; uint8_t buffer[sizeof(ha) + sizeof(sig)] = { 0 }; size_t buffer_size = sizeof(buffer); TPMS_SIGNATURE_ECDSA *ptr; TPM2B_ECC_PARAMETER *ptr2; TSS2_RC rc; memset(ha.sha512, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Marshal(&ha, TPM2_ALG_SHA512, buffer, buffer_size, NULL); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (memcmp(buffer, ha.sha512, TPM2_SHA512_DIGEST_SIZE), 0); sig.ecdsa.hash = TPM2_ALG_SHA1; sig.ecdsa.signatureR.size = 4; sig.ecdsa.signatureR.buffer[0] = 'a'; sig.ecdsa.signatureR.buffer[1] = 'b'; sig.ecdsa.signatureR.buffer[2] = 'c'; sig.ecdsa.signatureR.buffer[3] = 'd'; sig.ecdsa.signatureS.size = 4; sig.ecdsa.signatureS.buffer[0] = 'e'; sig.ecdsa.signatureS.buffer[1] = 'd'; sig.ecdsa.signatureS.buffer[2] = 'f'; sig.ecdsa.signatureS.buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Marshal(&sig, TPM2_ALG_ECDSA, buffer, buffer_size, NULL); assert_int_equal (rc, TSS2_RC_SUCCESS); ptr = (TPMS_SIGNATURE_ECDSA *) buffer; assert_int_equal (ptr->hash, HOST_TO_BE_16(TPM2_ALG_SHA1)); assert_int_equal (ptr->signatureR.size, HOST_TO_BE_16(4)); assert_int_equal (ptr->signatureR.buffer[0], 'a'); assert_int_equal (ptr->signatureR.buffer[1], 'b'); assert_int_equal (ptr->signatureR.buffer[2], 'c'); assert_int_equal (ptr->signatureR.buffer[3], 'd'); ptr2 = (TPM2B_ECC_PARAMETER *) (buffer + 8); assert_int_equal (ptr2->size, HOST_TO_BE_16(4)); assert_int_equal (ptr2->buffer[0], 'e'); assert_int_equal (ptr2->buffer[1], 'd'); assert_int_equal (ptr2->buffer[2], 'f'); assert_int_equal (ptr2->buffer[3], 'g'); } /* * Success case with a valid offset */ static void tpmu_marshal_success_offset(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; uint8_t buffer[sizeof(ha) + sizeof(sig) + 10] = { 0 }; size_t buffer_size = sizeof(buffer); TPMS_SIGNATURE_ECDSA *ptr; TPM2B_ECC_PARAMETER *ptr2; size_t offset = 10; TSS2_RC rc; memset(ha.sha512, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Marshal(&ha, TPM2_ALG_SHA512, buffer, buffer_size, &offset); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (memcmp(buffer + 10, ha.sha512, TPM2_SHA512_DIGEST_SIZE), 0); assert_int_equal (offset, 10 + TPM2_SHA512_DIGEST_SIZE); sig.ecdsa.hash = TPM2_ALG_SHA1; sig.ecdsa.signatureR.size = 4; sig.ecdsa.signatureR.buffer[0] = 'a'; sig.ecdsa.signatureR.buffer[1] = 'b'; sig.ecdsa.signatureR.buffer[2] = 'c'; sig.ecdsa.signatureR.buffer[3] = 'd'; sig.ecdsa.signatureS.size = 4; sig.ecdsa.signatureS.buffer[0] = 'e'; sig.ecdsa.signatureS.buffer[1] = 'd'; sig.ecdsa.signatureS.buffer[2] = 'f'; sig.ecdsa.signatureS.buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Marshal(&sig, TPM2_ALG_ECDSA, buffer, buffer_size, &offset); assert_int_equal (rc, TSS2_RC_SUCCESS); ptr = (TPMS_SIGNATURE_ECDSA *) (buffer + 10 + TPM2_SHA512_DIGEST_SIZE); assert_int_equal (ptr->hash, HOST_TO_BE_16(TPM2_ALG_SHA1)); assert_int_equal (ptr->signatureR.size, HOST_TO_BE_16(4)); assert_int_equal (ptr->signatureR.buffer[0], 'a'); assert_int_equal (ptr->signatureR.buffer[1], 'b'); assert_int_equal (ptr->signatureR.buffer[2], 'c'); assert_int_equal (ptr->signatureR.buffer[3], 'd'); ptr2 = (TPM2B_ECC_PARAMETER *) (buffer + 10 + TPM2_SHA512_DIGEST_SIZE + 8); assert_int_equal (ptr2->size, HOST_TO_BE_16(4)); assert_int_equal (ptr2->buffer[0], 'e'); assert_int_equal (ptr2->buffer[1], 'd'); assert_int_equal (ptr2->buffer[2], 'f'); assert_int_equal (ptr2->buffer[3], 'g'); assert_int_equal (offset, 10 + TPM2_SHA512_DIGEST_SIZE + 2 + ((2 + 1 + 1 + 1 + 1) * 2)); } /* * Success case with a null buffer */ static void tpmu_marshal_buffer_null_with_offset(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; size_t buffer_size = sizeof(ha) + sizeof(sig) + 10; size_t offset = 10; TSS2_RC rc; memset(ha.sha512, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Marshal(&ha, TPM2_ALG_SHA512, NULL, buffer_size, &offset); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, 10 + TPM2_SHA512_DIGEST_SIZE); sig.ecdsa.hash = TPM2_ALG_SHA1; sig.ecdsa.signatureR.size = 4; sig.ecdsa.signatureR.buffer[0] = 'a'; sig.ecdsa.signatureR.buffer[1] = 'b'; sig.ecdsa.signatureR.buffer[2] = 'c'; sig.ecdsa.signatureR.buffer[3] = 'd'; sig.ecdsa.signatureS.size = 4; sig.ecdsa.signatureS.buffer[0] = 'e'; sig.ecdsa.signatureS.buffer[1] = 'd'; sig.ecdsa.signatureS.buffer[2] = 'f'; sig.ecdsa.signatureS.buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Marshal(&sig, TPM2_ALG_ECDSA, NULL, buffer_size, &offset); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, 10 + TPM2_SHA512_DIGEST_SIZE + 2 + ((2 + 1 + 1 + 1 + 1) * 2)); } /* * Invalid case with a null buffer and a null offset */ static void tpmu_marshal_buffer_null_offset_null(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; TSS2_RC rc; rc = Tss2_MU_TPMU_HA_Marshal(&ha, TPM2_ALG_SHA512, NULL, sizeof(ha), NULL); assert_int_equal (rc, TSS2_MU_RC_BAD_REFERENCE); rc = Tss2_MU_TPMU_SIGNATURE_Marshal(&sig, TPM2_ALG_ECDSA, NULL, sizeof(sig), NULL); assert_int_equal (rc, TSS2_MU_RC_BAD_REFERENCE); } /* * Invalid case with not big enough buffer */ static void tpmu_marshal_buffer_size_lt_data_nad_lt_offset(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; uint8_t buffer[sizeof(ha) + sizeof(sig) + 10] = { 0 }; size_t offset = 10; TSS2_RC rc; memset(ha.sha512, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Marshal(&ha, TPM2_ALG_SHA512, buffer, TPM2_SHA512_DIGEST_SIZE - 1, &offset); assert_int_equal (rc, TSS2_MU_RC_INSUFFICIENT_BUFFER); assert_int_equal (offset, 10); sig.ecdsa.hash = TPM2_ALG_SHA1; sig.ecdsa.signatureR.size = 4; sig.ecdsa.signatureR.buffer[0] = 'a'; sig.ecdsa.signatureR.buffer[1] = 'b'; sig.ecdsa.signatureR.buffer[2] = 'c'; sig.ecdsa.signatureR.buffer[3] = 'd'; sig.ecdsa.signatureS.size = 4; sig.ecdsa.signatureS.buffer[0] = 'e'; sig.ecdsa.signatureS.buffer[1] = 'd'; sig.ecdsa.signatureS.buffer[2] = 'f'; sig.ecdsa.signatureS.buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Marshal(&sig, TPM2_ALG_ECDSA, buffer, 12, &offset); assert_int_equal (rc, TSS2_MU_RC_INSUFFICIENT_BUFFER); assert_int_equal (offset, 10); } /* * Success case */ static void tpmu_unmarshal_success(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; uint8_t buffer[sizeof(ha) + sizeof(sig)] = { 0 }; size_t buffer_size = sizeof(buffer); TPMS_SIGNATURE_ECDSA *ptr; TPM2B_ECC_PARAMETER *ptr2; size_t offset = 0; TSS2_RC rc; memset(buffer, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Unmarshal(buffer, buffer_size, &offset, TPM2_ALG_SHA512, &ha); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, TPM2_SHA512_DIGEST_SIZE); assert_int_equal (memcmp(buffer, ha.sha512, TPM2_SHA512_DIGEST_SIZE), 0); offset = 0; ptr = (TPMS_SIGNATURE_ECDSA *) buffer; ptr2 = (TPM2B_ECC_PARAMETER *) (buffer + 8); ptr->hash = HOST_TO_BE_16(TPM2_ALG_SHA1); ptr->signatureR.size = HOST_TO_BE_16(4); ptr->signatureR.buffer[0] = 'a'; ptr->signatureR.buffer[1] = 'b'; ptr->signatureR.buffer[2] = 'c'; ptr->signatureR.buffer[3] = 'd'; ptr2->size = HOST_TO_BE_16(4); ptr2->buffer[0] = 'e'; ptr2->buffer[1] = 'd'; ptr2->buffer[2] = 'f'; ptr2->buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Unmarshal(buffer, buffer_size, &offset, TPM2_ALG_ECDSA, &sig); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, 14); assert_int_equal (sig.ecdsa.hash, TPM2_ALG_SHA1); assert_int_equal (sig.ecdsa.signatureR.size, 4); assert_int_equal (sig.ecdsa.signatureR.buffer[0], 'a'); assert_int_equal (sig.ecdsa.signatureR.buffer[1], 'b'); assert_int_equal (sig.ecdsa.signatureR.buffer[2], 'c'); assert_int_equal (sig.ecdsa.signatureR.buffer[3], 'd'); assert_int_equal (sig.ecdsa.signatureS.size, 4); assert_int_equal (sig.ecdsa.signatureS.buffer[0], 'e'); assert_int_equal (sig.ecdsa.signatureS.buffer[1], 'd'); assert_int_equal (sig.ecdsa.signatureS.buffer[2], 'f'); assert_int_equal (sig.ecdsa.signatureS.buffer[3], 'g'); } /* * Invalid test case with buffer null and dest null */ static void tpmu_unmarshal_dest_null_buff_null(void **state) { size_t offset = 1; TSS2_RC rc; rc = Tss2_MU_TPMU_HA_Unmarshal(NULL, TPM2_SHA512_DIGEST_SIZE, &offset, TPM2_ALG_SHA512, NULL); assert_int_equal (rc, TSS2_MU_RC_BAD_REFERENCE); assert_int_equal (offset, 1); rc = Tss2_MU_TPMU_SIGNATURE_Unmarshal(NULL, 32, &offset, TPM2_ALG_ECDSA, NULL); assert_int_equal (rc, TSS2_MU_RC_BAD_REFERENCE); assert_int_equal (offset, 1); } /* * Invalid test case with offset null and dest null */ static void tpmu_unmarshal_buffer_null_offset_null(void **state) { uint8_t buffer[sizeof(TPMU_HA) + sizeof(TPMU_SIGNATURE)] = { 0 }; size_t buffer_size = sizeof(buffer); TSS2_RC rc; rc = Tss2_MU_TPMU_HA_Unmarshal(buffer, buffer_size, NULL, TPM2_ALG_SHA512, NULL); assert_int_equal (rc, TSS2_MU_RC_BAD_REFERENCE); rc = Tss2_MU_TPMU_SIGNATURE_Unmarshal(buffer, buffer_size, NULL, TPM2_ALG_ECDSA, NULL); assert_int_equal (rc, TSS2_MU_RC_BAD_REFERENCE); } /* * Test case ensures the offset is updated when dest is NULL * and offset is valid */ static void tpmu_unmarshal_dest_null_offset_valid(void **state) { uint8_t buffer[sizeof(TPMU_HA) + sizeof(TPMU_SIGNATURE)] = { 0 }; size_t buffer_size = sizeof(buffer); TPMS_SIGNATURE_ECDSA *ptr; TPM2B_ECC_PARAMETER *ptr2; size_t offset = 0; TSS2_RC rc; memset(buffer, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Unmarshal(buffer, buffer_size, &offset, TPM2_ALG_SHA512, NULL); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, TPM2_SHA512_DIGEST_SIZE); offset = 0; ptr = (TPMS_SIGNATURE_ECDSA *) buffer; ptr2 = (TPM2B_ECC_PARAMETER *) (buffer + 8); ptr->hash = HOST_TO_BE_16(TPM2_ALG_SHA1); ptr->signatureR.size = HOST_TO_BE_16(4); ptr->signatureR.buffer[0] = 'a'; ptr->signatureR.buffer[1] = 'b'; ptr->signatureR.buffer[2] = 'c'; ptr->signatureR.buffer[3] = 'd'; ptr2->size = HOST_TO_BE_16(4); ptr2->buffer[0] = 'e'; ptr2->buffer[1] = 'd'; ptr2->buffer[2] = 'f'; ptr2->buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Unmarshal(buffer, buffer_size, &offset, TPM2_ALG_ECDSA, NULL); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, 14); } /* * Invalid case with not big enough buffer. Make sure offest is untouched. */ static void tpmu_unmarshal_buffer_size_lt_data_nad_lt_offset(void **state) { TPMU_HA ha = {0}; TPMU_SIGNATURE sig = {0}; uint8_t buffer[sizeof(ha) + sizeof(sig)] = { 0 }; TPMS_SIGNATURE_ECDSA *ptr; TPM2B_ECC_PARAMETER *ptr2; size_t offset = 5; TSS2_RC rc; memset(buffer, 'a', TPM2_SHA512_DIGEST_SIZE); rc = Tss2_MU_TPMU_HA_Unmarshal(buffer, TPM2_SHA512_DIGEST_SIZE - 1, &offset, TPM2_ALG_SHA512, &ha); assert_int_equal (rc, TSS2_MU_RC_INSUFFICIENT_BUFFER); assert_int_equal (offset, 5); ptr = (TPMS_SIGNATURE_ECDSA *) buffer; ptr2 = (TPM2B_ECC_PARAMETER *) (buffer + 8); ptr->hash = HOST_TO_BE_16(TPM2_ALG_SHA1); ptr->signatureR.size = HOST_TO_BE_16(4); ptr->signatureR.buffer[0] = 'a'; ptr->signatureR.buffer[1] = 'b'; ptr->signatureR.buffer[2] = 'c'; ptr->signatureR.buffer[3] = 'd'; ptr2->size = HOST_TO_BE_16(4); ptr2->buffer[0] = 'e'; ptr2->buffer[1] = 'd'; ptr2->buffer[2] = 'f'; ptr2->buffer[3] = 'g'; rc = Tss2_MU_TPMU_SIGNATURE_Unmarshal(buffer, 14, &offset, TPM2_ALG_ECDSA, &sig); assert_int_equal (rc, TSS2_MU_RC_INSUFFICIENT_BUFFER); assert_int_equal (offset, 5); } static void tpmu_name_marshal(void **state) { TPMU_NAME name = {0}; TPMT_HA ha = {0}; uint8_t buf[256] = {0}; TPM2_HANDLE hdl = TPM2_RS_PW; TPM2_HANDLE hdl_expected = HOST_TO_BE_32(TPM2_RS_PW); TPM2_ALG_ID id_expected = HOST_TO_BE_16(TPM2_ALG_SHA1); size_t size = sizeof(hdl), offset = 0; const char digest[] = {0xa, 0xb, 0xc, 0xd, 0xe, 0xf, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x10, 0x11, 0x12, 0x13, 0x14}; TPM2_RC rc; /* Handle case */ size = sizeof(hdl); name.handle = hdl; rc = Tss2_MU_TPMU_NAME_Marshal(&name, size, buf, sizeof(hdl), &offset); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, sizeof(hdl)); assert_memory_equal ((void *) buf, &hdl_expected, sizeof(hdl)); /* Digest case */ offset = 0; size = sizeof(TPM2_ALG_ID) + TPM2_SHA1_DIGEST_SIZE; ha.hashAlg = TPM2_ALG_SHA1; memcpy(&ha.digest, digest, TPM2_SHA1_DIGEST_SIZE); memcpy(&name.digest, &ha, sizeof(ha)); rc = Tss2_MU_TPMU_NAME_Marshal(&name, size, buf, TPM2_SHA1_DIGEST_SIZE + 2, &offset); assert_int_equal (rc, TSS2_RC_SUCCESS); assert_int_equal (offset, TPM2_SHA1_DIGEST_SIZE + 2); assert_memory_equal (buf, &id_expected, sizeof(TPM2_ALG_ID)); assert_memory_equal (buf + 2, digest, TPM2_SHA1_DIGEST_SIZE); } int main(void) { const struct CMUnitTest tests[] = { cmocka_unit_test (tpmu_marshal_success), cmocka_unit_test (tpmu_marshal_success_offset), cmocka_unit_test (tpmu_marshal_buffer_null_with_offset), cmocka_unit_test (tpmu_marshal_buffer_null_offset_null), cmocka_unit_test (tpmu_marshal_buffer_size_lt_data_nad_lt_offset), cmocka_unit_test (tpmu_unmarshal_success), cmocka_unit_test (tpmu_unmarshal_dest_null_buff_null), cmocka_unit_test (tpmu_unmarshal_buffer_null_offset_null), cmocka_unit_test (tpmu_unmarshal_dest_null_offset_valid), cmocka_unit_test (tpmu_unmarshal_buffer_size_lt_data_nad_lt_offset), cmocka_unit_test (tpmu_name_marshal), }; return cmocka_run_group_tests(tests, NULL, NULL); }