routine.cpp 2.7 KB

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  1. /*
  2. * Copyright (C) 2011-2017 Intel Corporation. All rights reserved.
  3. *
  4. * Redistribution and use in source and binary forms, with or without
  5. * modification, are permitted provided that the following conditions
  6. * are met:
  7. *
  8. * * Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * * Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in
  12. * the documentation and/or other materials provided with the
  13. * distribution.
  14. * * Neither the name of Intel Corporation nor the names of its
  15. * contributors may be used to endorse or promote products derived
  16. * from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29. *
  30. */
  31. #include "enclave.h"
  32. #include "routine.h"
  33. #include "se_error_internal.h"
  34. #include "xsave.h"
  35. extern "C"
  36. sgx_status_t sgx_ecall(const sgx_enclave_id_t enclave_id, const int proc, const void *ocall_table, void *ms)
  37. {
  38. if(proc < 0)
  39. return SGX_ERROR_INVALID_FUNCTION;
  40. CEnclave* enclave = CEnclavePool::instance()->ref_enclave(enclave_id);
  41. //If we failed to reference enclave, there is no corresponding enclave instance, so we didn't increase the enclave.m_ref;
  42. if(!enclave)
  43. return SGX_ERROR_INVALID_ENCLAVE_ID;
  44. sgx_status_t result = SGX_ERROR_UNEXPECTED;
  45. {
  46. result = enclave->ecall(proc, ocall_table, ms);
  47. }
  48. {
  49. //This solution seems more readable and easy to validate, but low performace
  50. CEnclavePool::instance()->unref_enclave(enclave);
  51. }
  52. return result;
  53. }
  54. extern "C"
  55. int sgx_ocall(const unsigned int proc, const sgx_ocall_table_t *ocall_table, void *ms, CTrustThread *trust_thread)
  56. {
  57. assert(trust_thread != NULL);
  58. CEnclave* enclave = trust_thread->get_enclave();
  59. assert(enclave != NULL);
  60. return enclave->ocall(proc, ocall_table, ms);
  61. }