Arrays.edl 3.7 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. /* Arrays.edl - Samples for array attributes. */
  32. enclave {
  33. /*
  34. * Only for fixed-size array (size is explicitly specified).
  35. */
  36. trusted {
  37. /*
  38. * []: can be used to declare an array.
  39. * [user_check]:
  40. * pointer of the array won't be valified, and the buffer pointed by 'arr'
  41. * is not copied into the enclave either. But enclave can modify the memory outside.
  42. */
  43. public void ecall_array_user_check([user_check] int arr[4]);
  44. /*
  45. * [in]:
  46. * buffer for the array will be allocated inside the enclave,
  47. * content of the array will be copied into the new allocated memory inside.
  48. * Any changes performed inside the enclave will not affect the array outside.
  49. */
  50. public void ecall_array_in([in] int arr[4]);
  51. /*
  52. * [out]:
  53. * buffer for the array will be allocated inside the enclave,
  54. * but the content of the array won't be copied. After ECALL returns,
  55. * the buffer inside the enclave will copied into outside array.
  56. */
  57. public void ecall_array_out([out] int arr[4]);
  58. /*
  59. * [in, out]:
  60. * buffer for the array will be allocated inside the enclave,
  61. * the content of the array will be copied either. After ECALL returns,
  62. * the buffer inside the enclave will by copied into outside array again.
  63. */
  64. public void ecall_array_in_out([in, out] int arr[4]);
  65. /*
  66. * [isary]:
  67. * tells Edger8r the user defined 'array_t' is an array type, 'arr' will be
  68. * treated as a pointer, no memory copied either due to [user_check].
  69. * For OCALLs, 'arr' shall point to the memory outside the enclave.
  70. */
  71. public void ecall_array_isary([user_check, isary] array_t arr);
  72. };
  73. untrusted {
  74. /*
  75. * [user_check|in|out|in,out|isary] can also be used in OCALLs, refer to the "User Guide" for details.
  76. */
  77. };
  78. };