/*
* return a key blob from PS given a uuid
*/
TSS_RESULT
psfile_get_key_by_uuid(int fd, TSS_UUID *uuid, BYTE *ret_buffer, UINT16 *ret_buffer_size)
{
int rc;
UINT32 file_offset = 0;
struct key_disk_cache *tmp;
MUTEX_LOCK(disk_cache_lock);
tmp = key_disk_cache_head;
while (tmp) {
if (memcmp(uuid, &tmp->uuid, sizeof(TSS_UUID)) || !(tmp->flags & CACHE_FLAG_VALID)) {
tmp = tmp->next;
continue;
}
/* jump to the location of the key blob */
file_offset = TSSPS_BLOB_DATA_OFFSET(tmp);
rc = lseek(fd, file_offset, SEEK_SET);
if (rc == ((off_t) - 1)) {
LogError("lseek: %s", strerror(errno));
MUTEX_UNLOCK(disk_cache_lock);
return TCSERR(TSS_E_INTERNAL_ERROR);
}
/* we found the key; file ptr is pointing at the blob */
if (*ret_buffer_size < tmp->blob_size) {
/* not enough room */
MUTEX_UNLOCK(disk_cache_lock);
return TCSERR(TSS_E_FAIL);
}
if ((rc = read_data(fd, ret_buffer, tmp->blob_size))) {
LogError("%s", __FUNCTION__);
MUTEX_UNLOCK(disk_cache_lock);
return rc;
}
*ret_buffer_size = tmp->blob_size;
LogDebugUnrollKey(ret_buffer);
MUTEX_UNLOCK(disk_cache_lock);
return TSS_SUCCESS;
}
MUTEX_UNLOCK(disk_cache_lock);
/* key not found */
return TCSERR(TSS_E_FAIL);
}
TSS_RESULT
TCS_RegisterKey_Internal(TCS_CONTEXT_HANDLE hContext, /* in */
TSS_UUID *WrappingKeyUUID, /* in */
TSS_UUID *KeyUUID, /* in */
UINT32 cKeySize, /* in */
BYTE * rgbKey, /* in */
UINT32 cVendorData, /* in */
BYTE * gbVendorData) /* in */
{
TSS_RESULT result;
TSS_BOOL is_reg;
if ((result = ctx_verify_context(hContext)))
return result;
/* Check if key is already regisitered */
if (isUUIDRegistered(KeyUUID, &is_reg) != TSS_SUCCESS) {
LogError("Failed checking if UUID is registered.");
return TCSERR(TSS_E_INTERNAL_ERROR);
}
if (is_reg == TRUE || TSS_UUID_IS_OWNEREVICT(KeyUUID)) {
LogDebug("UUID is already registered");
return TCSERR(TSS_E_KEY_ALREADY_REGISTERED);
}
LogDebugUnrollKey(rgbKey);
/* Go ahead and store it in system persistant storage */
if ((result = ps_write_key(KeyUUID, WrappingKeyUUID, gbVendorData, cVendorData, rgbKey,
cKeySize))) {
LogError("Error writing key to file");
return result;
}
return TSS_SUCCESS;
}
