ant_crypto_info_get.c 4.6 KB

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  1. /**
  2. * Copyright (c) 2017 - 2020, Nordic Semiconductor ASA
  3. *
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without modification,
  7. * are permitted provided that the following conditions are met:
  8. *
  9. * 1. Redistributions of source code must retain the above copyright notice, this
  10. * list of conditions and the following disclaimer.
  11. *
  12. * 2. Redistributions in binary form, except as embedded into a Nordic
  13. * Semiconductor ASA integrated circuit in a product or a software update for
  14. * such product, must reproduce the above copyright notice, this list of
  15. * conditions and the following disclaimer in the documentation and/or other
  16. * materials provided with the distribution.
  17. *
  18. * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
  19. * contributors may be used to endorse or promote products derived from this
  20. * software without specific prior written permission.
  21. *
  22. * 4. This software, with or without modification, must only be used with a
  23. * Nordic Semiconductor ASA integrated circuit.
  24. *
  25. * 5. Any software provided in binary form under this license must not be reverse
  26. * engineered, decompiled, modified and/or disassembled.
  27. *
  28. * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
  29. * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  30. * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
  31. * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
  32. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  34. * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  37. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38. *
  39. */
  40. #include <stdlib.h>
  41. #include <string.h>
  42. #include "ant_app.h"
  43. #include "ble_serialization.h"
  44. #include "ant_struct_serialization.h"
  45. #include "cond_field_serialization.h"
  46. #include "app_util.h"
  47. uint32_t ant_crypto_info_get_req_enc(uint8_t type,
  48. uint8_t * const p_buf,
  49. uint32_t * const p_buf_len)
  50. {
  51. SER_ASSERT_NOT_NULL(p_buf);
  52. SER_ASSERT_NOT_NULL(p_buf_len);
  53. uint8_t svc_number = SVC_ANT_CRYPTO_INFO_GET;
  54. uint32_t err_code = NRF_SUCCESS;
  55. uint32_t buf_len = *p_buf_len;
  56. uint32_t index = 0;
  57. err_code = uint8_t_enc(&svc_number, p_buf, buf_len, &index);
  58. SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  59. err_code = uint8_t_enc(&type, p_buf, buf_len, &index);
  60. SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  61. SER_ASSERT_LENGTH_LEQ(index, buf_len);
  62. *p_buf_len = index;
  63. return err_code;
  64. }
  65. uint32_t ant_crypto_info_get_rsp_dec(uint8_t const * const p_buf,
  66. uint32_t packet_len,
  67. void * const p_info,
  68. uint32_t * const p_result_code)
  69. {
  70. SER_ASSERT_NOT_NULL(p_buf);
  71. SER_ASSERT_NOT_NULL(p_result_code);
  72. uint32_t index = 0;
  73. uint32_t err_code = ser_ble_cmd_rsp_result_code_dec(p_buf, &index, packet_len,
  74. SVC_ANT_CRYPTO_INFO_GET, p_result_code);
  75. SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  76. if (*p_result_code != NRF_SUCCESS)
  77. {
  78. SER_ASSERT_LENGTH_EQ(index, packet_len);
  79. return NRF_SUCCESS;
  80. }
  81. uint8_t type;
  82. uint8_t crypto_info_size;
  83. err_code = uint8_t_dec(p_buf, packet_len, &index, &type);
  84. SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  85. switch (type)
  86. {
  87. case ENCRYPTION_INFO_GET_SUPPORTED_MODE:
  88. crypto_info_size = MESG_CONFIG_ENCRYPT_REQ_CAPABILITIES_SIZE - MESG_CHANNEL_NUM_SIZE;
  89. break;
  90. case ENCRYPTION_INFO_GET_CRYPTO_ID:
  91. crypto_info_size = MESG_CONFIG_ENCRYPT_REQ_CONFIG_ID_SIZE - MESG_CHANNEL_NUM_SIZE;
  92. break;
  93. case ENCRYPTION_INFO_GET_CUSTOM_USER_DATA:
  94. crypto_info_size = (MESG_CONFIG_ENCRYPT_REQ_CONFIG_USER_DATA_SIZE -
  95. MESG_CHANNEL_NUM_SIZE);
  96. break;
  97. default:
  98. crypto_info_size = 0;
  99. break;
  100. }
  101. err_code = uint8_vector_dec(p_buf, packet_len, &index, (uint8_t *)p_info, crypto_info_size);
  102. SER_ASSERT(err_code == NRF_SUCCESS, err_code);
  103. SER_ASSERT_LENGTH_LEQ(index, packet_len);
  104. return NRF_SUCCESS;
  105. }