diff options
Diffstat (limited to 'src/tcs/tcsi_counter.c')
| -rw-r--r-- | src/tcs/tcsi_counter.c | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/tcs/tcsi_counter.c b/src/tcs/tcsi_counter.c new file mode 100644 index 0000000..edba088 --- /dev/null +++ b/src/tcs/tcsi_counter.c @@ -0,0 +1,212 @@ + +/* + * Licensed Materials - Property of IBM + * + * trousers - An open source TCG Software Stack + * + * (C) Copyright International Business Machines Corp. 2007 + * + */ + + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include "trousers/tss.h" +#include "trousers_types.h" +#include "tcs_tsp.h" +#include "tcs_utils.h" +#include "tcs_int_literals.h" +#include "capabilities.h" +#include "tcslog.h" +#include "tcsps.h" +#include "req_mgr.h" + + +TSS_RESULT +TCSP_ReadCounter_Internal(TCS_CONTEXT_HANDLE hContext, + TSS_COUNTER_ID idCounter, + TPM_COUNTER_VALUE* counterValue) +{ + TSS_RESULT result; + UINT32 paramSize; + UINT64 offset = 0; + BYTE txBlob[TSS_TPM_TXBLOB_SIZE]; + + if ((result = ctx_verify_context(hContext))) + return result; + + if ((result = tpm_rqu_build(TPM_ORD_ReadCounter, &offset, txBlob, idCounter, NULL))) + return result; + + if ((result = req_mgr_submit_req(txBlob))) + goto out; + + if ((result = UnloadBlob_Header(txBlob, ¶mSize))) { + LogDebugFn("TPM_ReadCounter failed: rc=0x%x", result); + goto out; + } + + if (!result) { + result = tpm_rsp_parse(TPM_ORD_ReadCounter, txBlob, paramSize, NULL, counterValue, + NULL); + } + +out: + return result; +} + +TSS_RESULT +TCSP_CreateCounter_Internal(TCS_CONTEXT_HANDLE hContext, + UINT32 LabelSize, + BYTE* pLabel, + TPM_ENCAUTH CounterAuth, + TPM_AUTH* pOwnerAuth, + TSS_COUNTER_ID* idCounter, + TPM_COUNTER_VALUE* counterValue) +{ + TSS_RESULT result; + UINT32 paramSize; + UINT64 offset = 0; + BYTE txBlob[TSS_TPM_TXBLOB_SIZE]; + + if (LabelSize != 4) { + LogDebugFn("BAD_PARAMETER: LabelSize != 4"); + return TCSERR(TSS_E_BAD_PARAMETER); + } + + if ((result = ctx_verify_context(hContext))) + return result; + + if ((result = auth_mgr_check(hContext, &pOwnerAuth->AuthHandle))) + return result; + + if ((result = tpm_rqu_build(TPM_ORD_CreateCounter, &offset, txBlob, CounterAuth.authdata, + LabelSize, pLabel, pOwnerAuth))) + return result; + + if ((result = req_mgr_submit_req(txBlob))) + goto out; + + if ((result = UnloadBlob_Header(txBlob, ¶mSize))) { + LogDebugFn("TPM_CreateCounter failed: rc=0x%x", result); + goto out; + } + + if (!result) { + result = tpm_rsp_parse(TPM_ORD_CreateCounter, txBlob, paramSize, idCounter, + counterValue, pOwnerAuth); + } + +out: + return result; +} + +TSS_RESULT +TCSP_IncrementCounter_Internal(TCS_CONTEXT_HANDLE hContext, + TSS_COUNTER_ID idCounter, + TPM_AUTH* pCounterAuth, + TPM_COUNTER_VALUE* counterValue) +{ + TSS_RESULT result; + UINT32 paramSize; + UINT64 offset = 0; + BYTE txBlob[TSS_TPM_TXBLOB_SIZE]; + + if ((result = ctx_verify_context(hContext))) + return result; + + if ((result = auth_mgr_check(hContext, &pCounterAuth->AuthHandle))) + return result; + + if ((result = tpm_rqu_build(TPM_ORD_IncrementCounter, &offset, txBlob, idCounter, + pCounterAuth))) + return result; + + if ((result = req_mgr_submit_req(txBlob))) + goto out; + + if ((result = UnloadBlob_Header(txBlob, ¶mSize))) { + LogDebugFn("UnloadBlob_Header failed: rc=0x%x", result); + goto out; + } + + if (!result) { + result = tpm_rsp_parse(TPM_ORD_IncrementCounter, txBlob, paramSize, NULL, + counterValue, pCounterAuth); + } +out: + return result; +} + +TSS_RESULT +TCSP_ReleaseCounter_Internal(TCS_CONTEXT_HANDLE hContext, + TSS_COUNTER_ID idCounter, + TPM_AUTH* pCounterAuth) +{ + TSS_RESULT result; + UINT32 paramSize; + UINT64 offset = 0; + BYTE txBlob[TSS_TPM_TXBLOB_SIZE]; + + if ((result = ctx_verify_context(hContext))) + return result; + + if ((result = auth_mgr_check(hContext, &pCounterAuth->AuthHandle))) + return result; + + if ((result = tpm_rqu_build(TPM_ORD_ReleaseCounter, &offset, txBlob, idCounter, + pCounterAuth))) + return result; + + if ((result = req_mgr_submit_req(txBlob))) + goto out; + + if ((result = UnloadBlob_Header(txBlob, ¶mSize))) { + LogDebugFn("UnloadBlob_Header failed: rc=0x%x", result); + goto out; + } + + if (!result) { + result = tpm_rsp_parse(TPM_ORD_ReleaseCounter, txBlob, paramSize, pCounterAuth); + } +out: + return result; +} + +TSS_RESULT +TCSP_ReleaseCounterOwner_Internal(TCS_CONTEXT_HANDLE hContext, + TSS_COUNTER_ID idCounter, + TPM_AUTH* pOwnerAuth) +{ + TSS_RESULT result; + UINT32 paramSize; + UINT64 offset = 0; + BYTE txBlob[TSS_TPM_TXBLOB_SIZE]; + + if ((result = ctx_verify_context(hContext))) + return result; + + if ((result = auth_mgr_check(hContext, &pOwnerAuth->AuthHandle))) + return result; + + if ((result = tpm_rqu_build(TPM_ORD_ReleaseCounterOwner, &offset, txBlob, idCounter, + pOwnerAuth))) + return result; + + if ((result = req_mgr_submit_req(txBlob))) + goto out; + + if ((result = UnloadBlob_Header(txBlob, ¶mSize))) { + LogDebugFn("UnloadBlob_Header failed: rc=0x%x", result); + goto out; + } + + if (!result) { + result = tpm_rsp_parse(TPM_ORD_ReleaseCounterOwner, txBlob, paramSize, pOwnerAuth); + } +out: + return result; +} + |