diff options
Diffstat (limited to 'src/tspi/tsp_bind.c')
-rw-r--r-- | src/tspi/tsp_bind.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/tspi/tsp_bind.c b/src/tspi/tsp_bind.c new file mode 100644 index 0000000..38e30ff --- /dev/null +++ b/src/tspi/tsp_bind.c @@ -0,0 +1,92 @@ + +/* + * Licensed Materials - Property of IBM + * + * trousers - An open source TCG Software Stack + * + * (C) Copyright International Business Machines Corp. 2007 + * + */ + + +#include <stdlib.h> +#include <string.h> + +#include "trousers/tss.h" +#include "trousers/trousers.h" +#include "trousers_types.h" +#include "spi_utils.h" +#include "capabilities.h" +#include "tsplog.h" +#include "obj.h" + + +#ifdef TSS_BUILD_TRANSPORT +TSS_RESULT +Transport_UnBind(TSS_HCONTEXT tspContext, /* in */ + TCS_KEY_HANDLE keyHandle, /* in */ + UINT32 inDataSize, /* in */ + BYTE * inData, /* in */ + TPM_AUTH * privAuth, /* in, out */ + UINT32 * outDataSize, /* out */ + BYTE ** outData) /* out */ +{ + TSS_RESULT result; + UINT32 handlesLen, dataLen, decLen; + TCS_HANDLE *handles, handle; + TPM_DIGEST pubKeyHash; + Trspi_HashCtx hashCtx; + BYTE *dec, *data; + UINT64 offset; + + if ((result = obj_context_transport_init(tspContext))) + return result; + + LogDebugFn("Executing in a transport session"); + + if ((result = obj_tcskey_get_pubkeyhash(keyHandle, pubKeyHash.digest))) + return result; + + result = Trspi_HashInit(&hashCtx, TSS_HASH_SHA1); + result |= Trspi_Hash_DIGEST(&hashCtx, pubKeyHash.digest); + if ((result |= Trspi_HashFinal(&hashCtx, pubKeyHash.digest))) + return result; + + handlesLen = 1; + handle = keyHandle; + handles = &handle; + + dataLen = sizeof(UINT32) + inDataSize; + if ((data = malloc(dataLen)) == NULL) { + LogError("malloc of %u bytes failed", dataLen); + return TSPERR(TSS_E_OUTOFMEMORY); + } + + offset = 0; + Trspi_LoadBlob_UINT32(&offset, inDataSize, data); + Trspi_LoadBlob(&offset, inDataSize, data, inData); + + if ((result = obj_context_transport_execute(tspContext, TPM_ORD_UnBind, dataLen, data, + &pubKeyHash, &handlesLen, &handles, + privAuth, NULL, &decLen, &dec))) { + free(data); + return result; + } + free(data); + + offset = 0; + Trspi_UnloadBlob_UINT32(&offset, outDataSize, dec); + + if ((*outData = malloc(*outDataSize)) == NULL) { + free(dec); + LogError("malloc of %u bytes failed", *outDataSize); + return TSPERR(TSS_E_OUTOFMEMORY); + } + Trspi_UnloadBlob(&offset, *outDataSize, dec, *outData); + + free(dec); + + return TSS_SUCCESS; +} +#endif + |