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Support for TPMEstablished flag in TPM2 code

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Resolve a few TPMEstablishment bit related FIXMEs by implementing
supporting functions.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
This commit is contained in:
Stefan Berger 2016-12-21 16:26:19 -05:00
parent 0eaae34cc5
commit 00f85ac180
3 changed files with 52 additions and 4 deletions
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5
src/tpm2/Simulator_fp.h
View File

@ -196,5 +196,10 @@ main(
int argc,
char *argv[]
);
// Extensions:
void _rpc__Signal_SetTPMEstablished(void);
BOOL _rpc__Signal_GetTPMEstablished(void);
void _rpc__Signal_ResetTPMEstablished(void);
#endif // _SIMULATOR_FP_H_

23
src/tpm2/TPMCmdp.c
View File

@ -333,3 +333,26 @@ _rpc__Shutdown(
#endif
return;
}
// Extensions
static BOOL tpmEstablished;
void
_rpc__Signal_SetTPMEstablished(void)
{
tpmEstablished = TRUE;
}
void
_rpc__Signal_ResetTPMEstablished(void)
{
/* check for locality 3 or 4 already done by caller */
tpmEstablished = FALSE;
}
BOOL
_rpc__Signal_GetTPMEstablished(void)
{
return tpmEstablished;
}

28
src/tpm_tpm2_tis.c
View File

@ -49,25 +49,45 @@ typedef uint32_t UINT32;
#include "tpm2/_TPM_Hash_Start_fp.h"
#include "tpm2/_TPM_Hash_Data_fp.h"
#include "tpm2/_TPM_Hash_End_fp.h"
#include "tpm2/TpmTcpProtocol.h"
#include "tpm2/Platform_fp.h"
#include "tpm2/Simulator_fp.h"
TPM_RESULT TPM2_IO_TpmEstablished_Get(TPM_BOOL *tpmEstablished)
{
// FIXME: Missing
*tpmEstablished = FALSE;
*tpmEstablished = _rpc__Signal_GetTPMEstablished();
return TPM_SUCCESS;
}
TPM_RESULT TPM2_IO_TpmEstablished_Reset(void)
{
// FIXME: Missing
return TPM_SUCCESS;
TPM_RESULT ret = TPM_SUCCESS;
struct libtpms_callbacks *cbs = TPMLIB_GetCallbacks();
TPM_MODIFIER_INDICATOR locality = 0;
uint32_t tpm_number = 0;
if (cbs->tpm_io_getlocality) {
cbs->tpm_io_getlocality(&locality, tpm_number);
}
_plat__LocalitySet(locality);
if (locality == 3 || locality == 4) {
_rpc__Signal_ResetTPMEstablished();
} else {
ret = TPM_BAD_LOCALITY;
}
return ret;
}
TPM_RESULT TPM2_IO_Hash_Start(void)
{
_TPM_Hash_Start();
_rpc__Signal_SetTPMEstablished();
return TPM_SUCCESS;
}