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/* SPDX-License-Identifier: BSD-2-Clause */
/***********************************************************************
* Copyright (c) 2017-2018, Intel Corporation
*
* All rights reserved.
***********************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <arpa/inet.h>
#include <setjmp.h>
#include <cmocka.h>
#include "tss2_sys.h"
#include "sysapi_util.h"
#define MAX_SIZE_CTX 4096
/**
*
*/
static int
CopyCommandHeader_sys_setup (void **state)
{
_TSS2_SYS_CONTEXT_BLOB *sys_ctx;
UINT32 size_ctx;
size_ctx = Tss2_Sys_GetContextSize (MAX_SIZE_CTX);
sys_ctx = calloc (1, size_ctx);
assert_non_null (sys_ctx);
/**
* This is the important part: the CopyCommandHeader function builds up
* the command buffer in the memory pointed to by tpmInitBuffPtr. This
* must point to the data after the context structure.
*/
sys_ctx->cmdBuffer = (UINT8*) (sys_ctx + sizeof (_TSS2_SYS_CONTEXT_BLOB));
InitSysContextFields (sys_ctx);
InitSysContextPtrs (sys_ctx, size_ctx);
*state = sys_ctx;
return 0;
}
static int
CopyCommandHeader_sys_teardown (void **state)
{
TSS2_SYS_CONTEXT *sys_ctx = (TSS2_SYS_CONTEXT*)*state;
if (sys_ctx)
free (sys_ctx);
return 0;
}
/**
* CopyCommandHeader creates the standard TPM command header (tag, size,
* command_code) to the data buffer in the context structure. It also
* advances the 'nextData' pointer to the address after the header. This
* test will fail if the nextData pointer isn't set as expected
*/
static void
CopyCommandHeader_nextData_unit (void **state)
{
_TSS2_SYS_CONTEXT_BLOB *sys_ctx = (_TSS2_SYS_CONTEXT_BLOB *)*state;
TPM2_CC cc = TPM2_CC_GetCapability;
CopyCommandHeader (sys_ctx, cc);
assert_int_equal (sys_ctx->nextData, sizeof (TPM20_Header_In));
}
/**
* After a call to CopyCommandHeader the tag in the TPM20_Header_In portion of
* the cmdBuffer member of the sys context should be TPM2_ST_NO_SESSIONS
* transformed into network byte order.
*/
static void
CopyCommandHeader_tag_unit (void **state)
{
_TSS2_SYS_CONTEXT_BLOB *sys_ctx = (_TSS2_SYS_CONTEXT_BLOB*)*state;
TPM2_CC cc = TPM2_CC_GetCapability;
TPM20_Header_In *header = (TPM20_Header_In*)sys_ctx->cmdBuffer;
/* The TSS code uses a custom function to convert stuff to network byte
* order but we can just use htons. Not sure why we don't use htons/l
* everywhere.
*/
TPMI_ST_COMMAND_TAG tag_net = htons (TPM2_ST_NO_SESSIONS);
CopyCommandHeader (sys_ctx, cc);
assert_int_equal (tag_net, header->tag);
}
/**
* After a call to CopyCommandHeader the commandCode in the TPM20_Header_In
* portion of the cmdBuffer member of the sys context should be the command
* code parameter in network byte order.
*/
static void
CopyCommandHeader_commandcode_unit (void **state)
{
_TSS2_SYS_CONTEXT_BLOB *sys_ctx = (_TSS2_SYS_CONTEXT_BLOB*)*state;
TPM2_CC cc = TPM2_CC_GetCapability;
TPM2_CC cc_net = htonl (cc);
TPM20_Header_In *header = (TPM20_Header_In*)sys_ctx->cmdBuffer;
CopyCommandHeader (sys_ctx, cc);
assert_int_equal (cc_net, header->commandCode);
}
int
main (int argc, char* argv[])
{
const struct CMUnitTest tests[] = {
cmocka_unit_test_setup_teardown (CopyCommandHeader_nextData_unit,
CopyCommandHeader_sys_setup,
CopyCommandHeader_sys_teardown),
cmocka_unit_test_setup_teardown (CopyCommandHeader_tag_unit,
CopyCommandHeader_sys_setup,
CopyCommandHeader_sys_teardown),
cmocka_unit_test_setup_teardown (CopyCommandHeader_commandcode_unit,
CopyCommandHeader_sys_setup,
CopyCommandHeader_sys_teardown),
};
return cmocka_run_group_tests (tests, NULL, NULL);
}
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