1 | // Copyright (c) Microsoft. All rights reserved.
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2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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3 |
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4 | #include <stdlib.h>
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5 | #include <stdbool.h>
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6 | #include <stdint.h>
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7 |
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8 | #include "parson.h"
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9 |
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10 | #include "azure_c_shared_utility/gballoc.h"
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11 | #include "azure_c_shared_utility/xlogging.h"
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12 | #include "azure_c_shared_utility/strings.h"
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13 | #include "azure_c_shared_utility/buffer_.h"
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14 | #include "azure_c_shared_utility/uniqueid.h"
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15 | #include "azure_c_shared_utility/sastoken.h"
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16 | #include "azure_c_shared_utility/crt_abstractions.h"
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17 | #include "azure_c_shared_utility/azure_base64.h"
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18 | #include "azure_c_shared_utility/urlencode.h"
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19 | #include "azure_c_shared_utility/shared_util_options.h"
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20 | #include "azure_c_shared_utility/tickcounter.h"
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21 |
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22 | #include "azure_prov_client/internal/prov_auth_client.h"
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23 | #include "azure_prov_client/internal/prov_transport_private.h"
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24 | #include "azure_prov_client/prov_device_ll_client.h"
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25 | #include "azure_prov_client/prov_client_const.h"
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26 |
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27 | static const char* const OPTION_LOG_TRACE = "logtrace";
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28 |
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29 | static const char* const JSON_NODE_STATUS = "status";
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30 | static const char* const JSON_NODE_REG_STATUS = "registrationState";
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31 | static const char* const JSON_NODE_AUTH_KEY = "authenticationKey";
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32 | static const char* const JSON_NODE_DEVICE_ID = "deviceId";
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33 | static const char* const JSON_NODE_KEY_NAME = "keyName";
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34 | static const char* const JSON_NODE_OPERATION_ID = "operationId";
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35 | static const char* const JSON_NODE_ASSIGNED_HUB = "assignedHub";
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36 | static const char* const JSON_NODE_TPM_NODE = "tpm";
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37 | static const char* const JSON_NODE_DATE_TIME = "lastUpdatedDateTimeUtc";
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38 | static const char* const JSON_NODE_ERROR_MSG = "errorMessage";
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39 | static const char* const JSON_NODE_ERROR_CODE = "errorCode";
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40 | static const char* const PROV_FAILED_STATUS = "failed";
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41 | static const char* const PROV_BLACKLISTED_STATUS = "blacklisted";
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42 | static const char* const JSON_CUSTOM_DATA_TAG = "payload";
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43 | static const char* const JSON_NODE_RETURNED_DATA = "payload";
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44 |
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45 | static const char* const SAS_TOKEN_SCOPE_FMT = "%s/registrations/%s";
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46 |
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47 | static const char* const REGISTRATION_ID = "registrationId";
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48 | static const char* const JSON_ENDORSMENT_KEY_NODE = "endorsementKey";
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49 | static const char* const JSON_STORAGE_ROOT_KEY_NODE = "storageRootKey";
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50 |
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51 | #define DPS_HUB_ERROR_NO_HUB 400208
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52 | #define DPS_HUB_ERROR_UNAUTH 400209
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53 |
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54 | #define SAS_TOKEN_DEFAULT_LIFETIME 2400
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55 | #define EPOCH_TIME_T_VALUE (time_t)0
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56 | #define MAX_AUTH_ATTEMPTS 3
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57 | #define PROV_DEFAULT_TIMEOUT 60
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58 |
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59 | typedef enum CLIENT_STATE_TAG
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60 | {
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61 | CLIENT_STATE_READY,
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62 |
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63 | CLIENT_STATE_REGISTER_SEND,
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64 | CLIENT_STATE_REGISTER_SENT,
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65 | CLIENT_STATE_REGISTER_RECV,
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66 |
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67 | CLIENT_STATE_STATUS_SEND,
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68 | CLIENT_STATE_STATUS_SENT,
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69 | CLIENT_STATE_STATUS_RECV,
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70 |
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71 | CLIENT_STATE_ERROR
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72 | } CLIENT_STATE;
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73 |
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74 | typedef struct IOTHUB_REQ_INFO_TAG
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75 | {
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76 | char* iothub_url;
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77 | char* iothub_key;
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78 | char* device_id;
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79 | } IOTHUB_REQ_INFO;
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80 |
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81 | typedef struct PROV_INSTANCE_INFO_TAG
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82 | {
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83 | PROV_DEVICE_CLIENT_REGISTER_DEVICE_CALLBACK register_callback;
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84 | void* user_context;
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85 | PROV_DEVICE_CLIENT_REGISTER_STATUS_CALLBACK register_status_cb;
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86 | void* status_user_ctx;
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87 | PROV_DEVICE_RESULT error_reason;
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88 |
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89 | const PROV_DEVICE_TRANSPORT_PROVIDER* prov_transport_protocol;
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90 | PROV_DEVICE_TRANSPORT_HANDLE transport_handle;
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91 | bool transport_open;
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92 |
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93 | TICK_COUNTER_HANDLE tick_counter;
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94 |
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95 | tickcounter_ms_t last_send_time_ms;
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96 | tickcounter_ms_t timeout_value;
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97 | size_t retry_after_ms;
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98 |
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99 | uint8_t prov_timeout;
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100 |
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101 | char* registration_id;
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102 | bool user_supplied_reg_id;
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103 |
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104 | PROV_AUTH_HANDLE prov_auth_handle;
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105 |
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106 | bool is_connected;
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107 |
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108 | PROV_AUTH_TYPE hsm_type;
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109 |
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110 | IOTHUB_REQ_INFO iothub_info;
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111 |
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112 | CLIENT_STATE prov_state;
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113 |
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114 | size_t auth_attempts_made;
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115 |
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116 | char* scope_id;
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117 |
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118 | char* custom_request_data;
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119 | char* custom_response_data;
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120 | } PROV_INSTANCE_INFO;
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121 |
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122 | static char* prov_transport_challenge_callback(const unsigned char* nonce, size_t nonce_len, const char* key_name, void* user_ctx)
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123 | {
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124 | char* result;
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125 | if (user_ctx == NULL)
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126 | {
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127 | LogError("Bad argument user_ctx is NULL");
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128 | result = NULL;
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129 | }
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130 | else
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131 | {
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132 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)user_ctx;
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133 | if ((prov_info->hsm_type == PROV_AUTH_TYPE_TPM) && nonce == NULL)
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134 | {
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135 | LogError("Bad argument nonce is NULL");
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136 | result = NULL;
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137 | }
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138 | else
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139 | {
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140 | char* token_scope;
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141 | size_t token_scope_len;
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142 |
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143 | size_t sec_since_epoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
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144 | size_t expiry_time = sec_since_epoch + SAS_TOKEN_DEFAULT_LIFETIME;
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145 |
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146 | // Construct Token scope
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147 | token_scope_len = strlen(SAS_TOKEN_SCOPE_FMT) + strlen(prov_info->scope_id) + strlen(prov_info->registration_id);
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148 |
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149 | token_scope = malloc(token_scope_len + 1);
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150 | if (token_scope == NULL)
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151 | {
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152 | LogError("Failure to allocate token scope");
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153 | result = NULL;
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154 | }
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155 | else if (sprintf(token_scope, SAS_TOKEN_SCOPE_FMT, prov_info->scope_id, prov_info->registration_id) <= 0)
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156 | {
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157 | LogError("Failure to constructing token_scope");
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158 | free(token_scope);
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159 | result = NULL;
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160 | }
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161 | else
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162 | {
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163 | STRING_HANDLE encoded_token = URL_EncodeString(token_scope);
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164 | if (encoded_token == NULL)
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165 | {
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166 | LogError("Failure to url encoding string");
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167 | result = NULL;
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168 | }
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169 | else
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170 | {
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171 | if (prov_info->hsm_type == PROV_AUTH_TYPE_TPM && (prov_auth_import_key(prov_info->prov_auth_handle, nonce, nonce_len) != 0))
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172 | {
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173 | LogError("Failure to import the provisioning key");
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174 | result = NULL;
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175 | }
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176 | else
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177 | {
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178 | if ((result = prov_auth_construct_sas_token(prov_info->prov_auth_handle, STRING_c_str(encoded_token), key_name, expiry_time)) == NULL)
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179 | {
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180 | LogError("Failure to import the provisioning key");
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181 | result = NULL;
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182 | }
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183 | }
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184 | STRING_delete(encoded_token);
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185 | }
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186 | free(token_scope);
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187 | }
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188 | }
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189 | }
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190 | return result;
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191 | }
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192 |
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193 | static void on_transport_error(PROV_DEVICE_TRANSPORT_ERROR transport_error, void* user_ctx)
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194 | {
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195 | if (user_ctx != NULL)
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196 | {
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197 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)user_ctx;
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198 | switch (transport_error)
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199 | {
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200 | case PROV_DEVICE_ERROR_KEY_FAIL:
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201 | prov_info->error_reason = PROV_DEVICE_RESULT_KEY_ERROR;
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202 | break;
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203 | case PROV_DEVICE_ERROR_KEY_UNAUTHORIZED:
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204 | prov_info->error_reason = PROV_DEVICE_RESULT_DEV_AUTH_ERROR;
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205 | break;
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206 |
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207 | case PROV_DEVICE_ERROR_MEMORY:
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208 | prov_info->error_reason = PROV_DEVICE_RESULT_MEMORY;
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209 | break;
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210 | }
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211 | }
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212 | }
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213 |
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214 | static PROV_DEVICE_TRANSPORT_STATUS retrieve_status_type(const char* prov_status)
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215 | {
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216 | PROV_DEVICE_TRANSPORT_STATUS result;
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217 | if (strcmp(prov_status, PROV_UNASSIGNED_STATUS) == 0)
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218 | {
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219 | result = PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED;
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220 | }
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221 | else if (strcmp(prov_status, PROV_ASSIGNING_STATUS) == 0)
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222 | {
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223 | result = PROV_DEVICE_TRANSPORT_STATUS_ASSIGNING;
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224 | }
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225 | else if (strcmp(prov_status, PROV_ASSIGNED_STATUS) == 0)
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226 | {
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227 | result = PROV_DEVICE_TRANSPORT_STATUS_ASSIGNED;
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228 | }
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229 | else if (strcmp(prov_status, PROV_FAILED_STATUS) == 0)
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230 | {
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231 | result = PROV_DEVICE_TRANSPORT_STATUS_ERROR;
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232 | }
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233 | else if (strcmp(prov_status, PROV_BLACKLISTED_STATUS) == 0)
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234 | {
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235 | result = PROV_DEVICE_TRANSPORT_STATUS_BLACKLISTED;
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236 | }
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237 | else if (strcmp(prov_status, PROV_DISABLE_STATUS) == 0)
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238 | {
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239 | result = PROV_DEVICE_TRANSPORT_STATUS_DISABLED;
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240 | }
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241 | else
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242 | {
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243 | result = PROV_DEVICE_TRANSPORT_STATUS_ERROR;
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244 | }
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245 | return result;
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246 | }
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247 |
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248 | static int retrieve_json_number(JSON_Object* json_object, const char* field_name)
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249 | {
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250 | int result;
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251 | JSON_Value* json_field;
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252 | if ((json_field = json_object_get_value(json_object, field_name)) == NULL)
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253 | {
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254 | LogError("failure retrieving json operation id");
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255 | result = 0;
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256 | }
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257 | else
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258 | {
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259 | result = (int)json_value_get_number(json_field);
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260 | }
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261 | return result;
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262 | }
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263 |
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264 | static void retrieve_json_payload(JSON_Object* json_object, PROV_INSTANCE_INFO* prov_info)
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265 | {
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266 | JSON_Value* json_field;
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267 |
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268 | // Returned Data is not available
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269 | if ((json_field = json_object_get_value(json_object, JSON_NODE_RETURNED_DATA)) != NULL)
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270 | {
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271 | prov_info->custom_response_data = json_serialize_to_string(json_field);
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272 | }
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273 | }
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274 |
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275 | static char* retrieve_json_string(JSON_Object* json_object, const char* field_name, bool is_required)
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276 | {
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277 | char* result;
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278 | JSON_Value* json_field;
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279 | if ((json_field = json_object_get_value(json_object, field_name)) == NULL)
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280 | {
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281 | if (is_required)
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282 | {
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283 | LogError("failure retrieving json object value %s", field_name);
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284 | }
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285 | result = NULL;
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286 | }
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287 | else
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288 | {
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289 | const char* json_item = json_value_get_string(json_field);
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290 | if (json_item != NULL)
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291 | {
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292 | if (mallocAndStrcpy_s(&result, json_item) != 0)
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293 | {
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294 | LogError("failure retrieving operation id");
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295 | result = NULL;
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296 | }
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297 | }
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298 | else
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299 | {
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300 | result = NULL;
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301 | }
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302 | }
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303 | return result;
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304 | }
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305 |
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306 | static JSON_Value* construct_security_type_json(PROV_INSTANCE_INFO* prov_info, const char* ek_value, const char* srk_value)
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307 | {
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308 | JSON_Value* result;
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309 |
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310 | JSON_Object* json_object;
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311 | result = json_value_init_object();
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312 | if (result == NULL)
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313 | {
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314 | LogError("Failure constructing json information");
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315 | }
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316 | else if ((json_object = json_value_get_object(result)) == NULL)
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317 | {
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318 | LogError("failure retrieving node root object");
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319 | json_value_free(result);
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320 | result = NULL;
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321 | }
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322 | else
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323 | {
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324 | if (json_object_set_string(json_object, REGISTRATION_ID, prov_info->registration_id) != JSONSuccess)
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325 | {
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326 | LogError("failure setting registration Id json node");
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327 | json_value_free(result);
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328 | result = NULL;
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329 | }
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330 | else
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331 | {
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332 | if (prov_info->hsm_type == PROV_AUTH_TYPE_TPM)
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333 | {
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334 | // tpm_node value only gets released on failure
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335 | JSON_Object* tpm_object;
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336 | JSON_Value* tpm_node = json_value_init_object();
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337 | if (tpm_node == NULL)
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338 | {
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339 | LogError("failure constructing json tpm object");
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340 | json_value_free(tpm_node);
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341 | json_value_free(result);
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342 | result = NULL;
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343 | }
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344 | else if ((tpm_object = json_value_get_object(tpm_node)) == NULL)
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345 | {
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346 | LogError("failure retrieving node root object");
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347 | json_value_free(tpm_node);
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348 | json_value_free(result);
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349 | result = NULL;
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350 | }
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351 | else if (json_object_set_string(tpm_object, JSON_ENDORSMENT_KEY_NODE, ek_value) != JSONSuccess)
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352 | {
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353 | LogError("failure setting endorsement key node");
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354 | json_value_free(tpm_node);
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355 | json_value_free(result);
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356 | result = NULL;
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357 | }
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358 | else if (json_object_set_string(tpm_object, JSON_STORAGE_ROOT_KEY_NODE, srk_value) != JSONSuccess)
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359 | {
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360 | LogError("failure setting tpm storage root key node");
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361 | json_value_free(tpm_node);
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362 | json_value_free(result);
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363 | result = NULL;
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364 | }
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365 | else if (json_object_set_value(json_object, JSON_NODE_TPM_NODE, tpm_node) != JSONSuccess)
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366 | {
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367 | LogError("failure constructing json tpm object");
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368 | json_value_free(tpm_node);
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369 | json_value_free(result);
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370 | result = NULL;
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371 | }
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372 | }
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373 | }
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374 | }
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375 | return result;
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376 | }
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377 |
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378 | static char* prov_transport_create_json_payload(const char* ek_value, const char* srk_value, void* user_ctx)
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379 | {
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380 | char* result = NULL;
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381 | if (user_ctx == NULL)
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382 | {
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383 | LogError("failure user_ctx is NULL");
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384 | }
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385 | else
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386 | {
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387 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)user_ctx;
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388 |
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389 | JSON_Value* json_root = construct_security_type_json(prov_info, ek_value, srk_value);
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390 | if (json_root == NULL)
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391 | {
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392 | LogError("Failure constructing security json");
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393 | }
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394 | else
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395 | {
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396 | bool error_encountered = false;
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397 | if (prov_info->custom_request_data != NULL)
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398 | {
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399 | JSON_Object* json_object;
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400 | JSON_Value* json_custom_data = NULL;
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401 |
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402 | if ((json_object = json_value_get_object(json_root)) == NULL)
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403 | {
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404 | LogError("failure retrieving node root object");
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405 | error_encountered = true;
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406 | }
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407 | else if ((json_custom_data = json_parse_string(prov_info->custom_request_data)) == NULL)
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408 | {
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409 | LogError("failure parsing custom info. This custom info MUST be valid json");
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410 | error_encountered = true;
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411 | }
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412 | // Success on json_object_set_value transfers ownership of json_custom_data to json_object, so do not
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413 | // explicitly free json_custom_data after this point.
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414 | else if (json_object_set_value(json_object, JSON_CUSTOM_DATA_TAG, json_custom_data) != JSONSuccess)
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415 | {
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416 | LogError("failure setting %s value", JSON_CUSTOM_DATA_TAG);
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417 | json_value_free(json_custom_data);
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418 | error_encountered = true;
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419 | }
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420 | }
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421 |
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422 | if (!error_encountered)
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423 | {
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424 | char* json_string = json_serialize_to_string(json_root);
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425 | if (json_string == NULL)
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426 | {
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427 | LogError("failure serializing json to string");
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428 | }
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429 | else
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430 | {
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431 | if (mallocAndStrcpy_s(&result, json_string) != 0)
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432 | {
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433 | LogError("failure constructing json result value");
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434 | }
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435 | json_free_serialized_string(json_string);
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436 | }
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437 | }
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438 | json_value_free(json_root);
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439 | }
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440 | }
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441 |
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442 | return result;
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443 | }
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444 |
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445 | static PROV_JSON_INFO* prov_transport_process_json_reply(const char* json_document, void* user_ctx)
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446 | {
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447 | PROV_JSON_INFO* result;
|
---|
448 | JSON_Value* root_value;
|
---|
449 | JSON_Object* json_object;
|
---|
450 | if (user_ctx == NULL)
|
---|
451 | {
|
---|
452 | LogError("failure user_ctx is NULL");
|
---|
453 | result = NULL;
|
---|
454 | }
|
---|
455 | else if ((root_value = json_parse_string(json_document)) == NULL)
|
---|
456 | {
|
---|
457 | LogError("failure calling json_parse_string");
|
---|
458 | result = NULL;
|
---|
459 | }
|
---|
460 | else if ((json_object = json_value_get_object(root_value)) == NULL)
|
---|
461 | {
|
---|
462 | LogError("failure retrieving node root object");
|
---|
463 | json_value_free(root_value);
|
---|
464 | result = NULL;
|
---|
465 | }
|
---|
466 | else if ((result = malloc(sizeof(PROV_JSON_INFO))) == NULL)
|
---|
467 | {
|
---|
468 | LogError("failure allocating PROV_JSON_INFO");
|
---|
469 | json_value_free(root_value);
|
---|
470 | }
|
---|
471 | else
|
---|
472 | {
|
---|
473 | memset(result, 0, sizeof(PROV_JSON_INFO));
|
---|
474 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)user_ctx;
|
---|
475 | JSON_Value* json_status = json_object_get_value(json_object, JSON_NODE_STATUS);
|
---|
476 |
|
---|
477 | if (json_status == NULL)
|
---|
478 | {
|
---|
479 | // Under TPM the status will be error if this is an authorization request. We need to make it unassigned.
|
---|
480 | if (prov_info->hsm_type == PROV_AUTH_TYPE_TPM)
|
---|
481 | {
|
---|
482 | result->prov_status = PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED;
|
---|
483 | }
|
---|
484 | else
|
---|
485 | {
|
---|
486 | result->prov_status = PROV_DEVICE_TRANSPORT_STATUS_ERROR;
|
---|
487 | }
|
---|
488 | }
|
---|
489 | else
|
---|
490 | {
|
---|
491 | // status can be NULL
|
---|
492 | const char* json_string = json_value_get_string(json_status);
|
---|
493 | if (json_string == NULL)
|
---|
494 | {
|
---|
495 | result->prov_status = PROV_DEVICE_TRANSPORT_STATUS_ERROR;
|
---|
496 | }
|
---|
497 | else
|
---|
498 | {
|
---|
499 | result->prov_status = retrieve_status_type(json_string);
|
---|
500 | }
|
---|
501 | }
|
---|
502 | switch (result->prov_status)
|
---|
503 | {
|
---|
504 | case PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED:
|
---|
505 | {
|
---|
506 | JSON_Value* auth_key;
|
---|
507 | if ((auth_key = json_object_get_value(json_object, JSON_NODE_AUTH_KEY)) == NULL)
|
---|
508 | {
|
---|
509 | LogError("failure retrieving json auth key value");
|
---|
510 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
511 | free(result);
|
---|
512 | result = NULL;
|
---|
513 | }
|
---|
514 | else
|
---|
515 | {
|
---|
516 | const char* nonce_field = json_value_get_string(auth_key);
|
---|
517 | if ((result->authorization_key = Azure_Base64_Decode(nonce_field)) == NULL)
|
---|
518 | {
|
---|
519 | LogError("failure creating buffer nonce field");
|
---|
520 | prov_info->error_reason = PROV_DEVICE_RESULT_MEMORY;
|
---|
521 | free(result);
|
---|
522 | result = NULL;
|
---|
523 | }
|
---|
524 | else
|
---|
525 | {
|
---|
526 | result->key_name = retrieve_json_string(json_object, JSON_NODE_KEY_NAME, true);
|
---|
527 | if (result->key_name == NULL)
|
---|
528 | {
|
---|
529 | LogError("failure retrieving keyname field");
|
---|
530 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
531 | BUFFER_delete(result->authorization_key);
|
---|
532 | free(result);
|
---|
533 | result = NULL;
|
---|
534 | }
|
---|
535 | }
|
---|
536 | }
|
---|
537 | break;
|
---|
538 | }
|
---|
539 |
|
---|
540 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNING:
|
---|
541 | if ((result->operation_id = retrieve_json_string(json_object, JSON_NODE_OPERATION_ID, true)) == NULL)
|
---|
542 | {
|
---|
543 | LogError("Failure: operation_id node is mising");
|
---|
544 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
545 | free(result);
|
---|
546 | result = NULL;
|
---|
547 | }
|
---|
548 | break;
|
---|
549 |
|
---|
550 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNED:
|
---|
551 | {
|
---|
552 | JSON_Object* json_reg_status_node;
|
---|
553 | if ((json_reg_status_node = json_object_get_object(json_object, JSON_NODE_REG_STATUS)) == NULL)
|
---|
554 | {
|
---|
555 | LogError("failure retrieving json registration status node");
|
---|
556 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
557 | free(result);
|
---|
558 | result = NULL;
|
---|
559 | }
|
---|
560 | else
|
---|
561 | {
|
---|
562 | if (prov_info->hsm_type == PROV_AUTH_TYPE_TPM)
|
---|
563 | {
|
---|
564 | JSON_Object* json_tpm_node;
|
---|
565 | JSON_Value* auth_key;
|
---|
566 |
|
---|
567 | if ((json_tpm_node = json_object_get_object(json_reg_status_node, JSON_NODE_TPM_NODE)) == NULL)
|
---|
568 | {
|
---|
569 | LogError("failure retrieving tpm node json_tpm_node: %p, auth key: %p", json_tpm_node, result->authorization_key);
|
---|
570 | free(result);
|
---|
571 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
572 | result = NULL;
|
---|
573 | }
|
---|
574 | else if ((auth_key = json_object_get_value(json_tpm_node, JSON_NODE_AUTH_KEY)) == NULL)
|
---|
575 | {
|
---|
576 | LogError("failure retrieving json auth key value");
|
---|
577 | free(result);
|
---|
578 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
579 | result = NULL;
|
---|
580 | }
|
---|
581 | else
|
---|
582 | {
|
---|
583 | const char* nonce_field = json_value_get_string(auth_key);
|
---|
584 | if (nonce_field == NULL)
|
---|
585 | {
|
---|
586 | LogError("failure getting nonce field from json");
|
---|
587 | prov_info->error_reason = PROV_DEVICE_RESULT_MEMORY;
|
---|
588 | free(result);
|
---|
589 | result = NULL;
|
---|
590 | }
|
---|
591 | else if ((result->authorization_key = Azure_Base64_Decode(nonce_field)) == NULL)
|
---|
592 | {
|
---|
593 | LogError("failure creating buffer nonce field");
|
---|
594 | prov_info->error_reason = PROV_DEVICE_RESULT_MEMORY;
|
---|
595 | free(result);
|
---|
596 | result = NULL;
|
---|
597 | }
|
---|
598 | }
|
---|
599 | }
|
---|
600 |
|
---|
601 | if (result != NULL)
|
---|
602 | {
|
---|
603 | if (
|
---|
604 | ((result->iothub_uri = retrieve_json_string(json_reg_status_node, JSON_NODE_ASSIGNED_HUB, true)) == NULL) ||
|
---|
605 | ((result->device_id = retrieve_json_string(json_reg_status_node, JSON_NODE_DEVICE_ID, true)) == NULL)
|
---|
606 | )
|
---|
607 | {
|
---|
608 | LogError("failure retrieving json value assigned_hub: %p, device_id: %p", result->iothub_uri, result->device_id);
|
---|
609 | prov_info->error_reason = PROV_DEVICE_RESULT_PARSING;
|
---|
610 | free(result->iothub_uri);
|
---|
611 | free(result->authorization_key);
|
---|
612 | free(result);
|
---|
613 | result = NULL;
|
---|
614 | }
|
---|
615 | else
|
---|
616 | {
|
---|
617 | // Get the returned Data from the payload if it's there
|
---|
618 | retrieve_json_payload(json_reg_status_node, prov_info);
|
---|
619 | }
|
---|
620 | }
|
---|
621 | }
|
---|
622 | break;
|
---|
623 | }
|
---|
624 |
|
---|
625 | case PROV_DEVICE_TRANSPORT_STATUS_BLACKLISTED:
|
---|
626 | LogError("The device is unauthorized with service");
|
---|
627 | prov_info->error_reason = PROV_DEVICE_RESULT_ERROR;
|
---|
628 | free(result);
|
---|
629 | result = NULL;
|
---|
630 | break;
|
---|
631 |
|
---|
632 | case PROV_DEVICE_TRANSPORT_STATUS_ERROR:
|
---|
633 | {
|
---|
634 | char* json_operation_id = NULL;
|
---|
635 | JSON_Object* json_reg_state = NULL;
|
---|
636 | if ((json_reg_state = json_object_get_object(json_object, JSON_NODE_REG_STATUS)) != NULL &&
|
---|
637 | (json_operation_id = retrieve_json_string(json_object, JSON_NODE_OPERATION_ID, true)) != NULL)
|
---|
638 | {
|
---|
639 | int error_code = retrieve_json_number(json_reg_state, JSON_NODE_ERROR_CODE);
|
---|
640 | switch (error_code)
|
---|
641 | {
|
---|
642 | case DPS_HUB_ERROR_NO_HUB:
|
---|
643 | prov_info->error_reason = PROV_DEVICE_RESULT_HUB_NOT_SPECIFIED;
|
---|
644 | break;
|
---|
645 | case DPS_HUB_ERROR_UNAUTH:
|
---|
646 | prov_info->error_reason = PROV_DEVICE_RESULT_UNAUTHORIZED;
|
---|
647 | break;
|
---|
648 | default:
|
---|
649 | prov_info->error_reason = PROV_DEVICE_RESULT_DEV_AUTH_ERROR;
|
---|
650 | break;
|
---|
651 | }
|
---|
652 | #ifndef NO_LOGGING
|
---|
653 | JSON_Value* json_error_date_time = NULL;
|
---|
654 | JSON_Value* json_error_msg = NULL;
|
---|
655 | if ((json_error_msg = json_object_get_value(json_reg_state, JSON_NODE_ERROR_MSG)) != NULL &&
|
---|
656 | (json_error_date_time = json_object_get_value(json_reg_state, JSON_NODE_DATE_TIME)) != NULL)
|
---|
657 | {
|
---|
658 | LogError("Provisioning Failure: OperationId: %s - Date: %s - Msg: %s", json_operation_id, json_value_get_string(json_error_date_time), json_value_get_string(json_error_msg) );
|
---|
659 | }
|
---|
660 | else
|
---|
661 | {
|
---|
662 | LogError("Unsuccessful json encountered: %s", json_document);
|
---|
663 | }
|
---|
664 | free(json_operation_id);
|
---|
665 | #endif
|
---|
666 | }
|
---|
667 | else
|
---|
668 | {
|
---|
669 | prov_info->error_reason = PROV_DEVICE_RESULT_DEV_AUTH_ERROR;
|
---|
670 | LogError("Unsuccessful json encountered: %s", json_document);
|
---|
671 | }
|
---|
672 | free(result);
|
---|
673 | result = NULL;
|
---|
674 | break;
|
---|
675 | }
|
---|
676 |
|
---|
677 | case PROV_DEVICE_TRANSPORT_STATUS_DISABLED:
|
---|
678 | LogError("The device has been disabled by DPS service");
|
---|
679 | prov_info->error_reason = PROV_DEVICE_RESULT_DISABLED;
|
---|
680 | free(result);
|
---|
681 | result = NULL;
|
---|
682 | break;
|
---|
683 |
|
---|
684 | default:
|
---|
685 | LogError("invalid json status specified %d", result->prov_status);
|
---|
686 | free(result);
|
---|
687 | result = NULL;
|
---|
688 | break;
|
---|
689 | }
|
---|
690 | json_value_free(root_value);
|
---|
691 | }
|
---|
692 | return result;
|
---|
693 | }
|
---|
694 |
|
---|
695 | static void cleanup_prov_info(PROV_INSTANCE_INFO* prov_info)
|
---|
696 | {
|
---|
697 | if (prov_info->transport_open)
|
---|
698 | {
|
---|
699 | prov_info->prov_transport_protocol->prov_transport_close(prov_info->transport_handle);
|
---|
700 | prov_info->transport_open = false;
|
---|
701 | prov_info->is_connected = false;
|
---|
702 | }
|
---|
703 | free(prov_info->registration_id);
|
---|
704 | prov_info->registration_id = NULL;
|
---|
705 | free(prov_info->iothub_info.device_id);
|
---|
706 | prov_info->iothub_info.device_id = NULL;
|
---|
707 | free(prov_info->iothub_info.iothub_key);
|
---|
708 | prov_info->iothub_info.iothub_key = NULL;
|
---|
709 | free(prov_info->iothub_info.iothub_url);
|
---|
710 | prov_info->iothub_info.iothub_url = NULL;
|
---|
711 | prov_info->auth_attempts_made = 0;
|
---|
712 | }
|
---|
713 |
|
---|
714 | static void on_transport_registration_data(PROV_DEVICE_TRANSPORT_RESULT transport_result, BUFFER_HANDLE iothub_key, const char* assigned_hub, const char* device_id, void* user_ctx)
|
---|
715 | {
|
---|
716 | if (user_ctx == NULL)
|
---|
717 | {
|
---|
718 | LogError("user context was unexpectantly NULL");
|
---|
719 | }
|
---|
720 | else
|
---|
721 | {
|
---|
722 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)user_ctx;
|
---|
723 | if (transport_result == PROV_DEVICE_TRANSPORT_RESULT_OK)
|
---|
724 | {
|
---|
725 | if (prov_info->hsm_type == PROV_AUTH_TYPE_TPM)
|
---|
726 | {
|
---|
727 | if (iothub_key == NULL)
|
---|
728 | {
|
---|
729 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
730 | if (prov_info->error_reason == PROV_DEVICE_RESULT_OK)
|
---|
731 | {
|
---|
732 | prov_info->error_reason = PROV_DEVICE_RESULT_KEY_ERROR;
|
---|
733 | }
|
---|
734 | LogError("invalid iothub device key");
|
---|
735 | }
|
---|
736 | else
|
---|
737 | {
|
---|
738 | const unsigned char* key_value = BUFFER_u_char(iothub_key);
|
---|
739 | size_t key_len = BUFFER_length(iothub_key);
|
---|
740 |
|
---|
741 | /* Codes_SRS_SECURE_ENCLAVE_CLIENT_07_028: [ prov_auth_import_key shall import the specified key into the tpm using secure_device_import_key secure enclave function. ] */
|
---|
742 | if (prov_auth_import_key(prov_info->prov_auth_handle, key_value, key_len) != 0)
|
---|
743 | {
|
---|
744 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
745 | prov_info->error_reason = PROV_DEVICE_RESULT_KEY_ERROR;
|
---|
746 | LogError("Failure to import the provisioning key");
|
---|
747 | }
|
---|
748 | }
|
---|
749 | }
|
---|
750 |
|
---|
751 | if (prov_info->prov_state != CLIENT_STATE_ERROR)
|
---|
752 | {
|
---|
753 | prov_info->register_callback(PROV_DEVICE_RESULT_OK, assigned_hub, device_id, prov_info->user_context);
|
---|
754 | prov_info->prov_state = CLIENT_STATE_READY;
|
---|
755 | cleanup_prov_info(prov_info);
|
---|
756 | }
|
---|
757 | }
|
---|
758 | else if (transport_result == PROV_DEVICE_TRANSPORT_RESULT_UNAUTHORIZED)
|
---|
759 | {
|
---|
760 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
761 | prov_info->error_reason = PROV_DEVICE_RESULT_DEV_AUTH_ERROR;
|
---|
762 | LogError("provisioning result is unauthorized");
|
---|
763 | }
|
---|
764 | else
|
---|
765 | {
|
---|
766 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
767 | if (prov_info->error_reason == PROV_DEVICE_RESULT_OK)
|
---|
768 | {
|
---|
769 | prov_info->error_reason = PROV_DEVICE_RESULT_TRANSPORT;
|
---|
770 | }
|
---|
771 | LogError("Failure retrieving data from the provisioning service");
|
---|
772 | }
|
---|
773 | }
|
---|
774 | }
|
---|
775 |
|
---|
776 | static void on_transport_status(PROV_DEVICE_TRANSPORT_STATUS transport_status, uint32_t retry_interval, void* user_ctx)
|
---|
777 | {
|
---|
778 | if (user_ctx == NULL)
|
---|
779 | {
|
---|
780 | LogError("user_ctx was unexpectatly NULL");
|
---|
781 | }
|
---|
782 | else
|
---|
783 | {
|
---|
784 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)user_ctx;
|
---|
785 |
|
---|
786 | prov_info->retry_after_ms = (size_t)retry_interval * 1000; // retry_interval is in seconds.
|
---|
787 |
|
---|
788 | switch (transport_status)
|
---|
789 | {
|
---|
790 | case PROV_DEVICE_TRANSPORT_STATUS_CONNECTED:
|
---|
791 | prov_info->is_connected = true;
|
---|
792 | if (prov_info->register_status_cb != NULL)
|
---|
793 | {
|
---|
794 | prov_info->register_status_cb(PROV_DEVICE_REG_STATUS_CONNECTED, prov_info->status_user_ctx);
|
---|
795 | }
|
---|
796 | break;
|
---|
797 | case PROV_DEVICE_TRANSPORT_STATUS_AUTHENTICATED:
|
---|
798 | case PROV_DEVICE_TRANSPORT_STATUS_ASSIGNING:
|
---|
799 | case PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED:
|
---|
800 | prov_info->prov_state = CLIENT_STATE_STATUS_SEND;
|
---|
801 | if (transport_status == PROV_DEVICE_TRANSPORT_STATUS_UNASSIGNED)
|
---|
802 | {
|
---|
803 | if (prov_info->register_status_cb != NULL)
|
---|
804 | {
|
---|
805 | prov_info->register_status_cb(PROV_DEVICE_REG_STATUS_REGISTERING, prov_info->status_user_ctx);
|
---|
806 | }
|
---|
807 | }
|
---|
808 | else if (transport_status == PROV_DEVICE_TRANSPORT_STATUS_ASSIGNING)
|
---|
809 | {
|
---|
810 | if (prov_info->register_status_cb != NULL)
|
---|
811 | {
|
---|
812 | prov_info->register_status_cb(PROV_DEVICE_REG_STATUS_ASSIGNING, prov_info->status_user_ctx);
|
---|
813 | }
|
---|
814 | }
|
---|
815 | break;
|
---|
816 | case PROV_DEVICE_TRANSPORT_STATUS_TRANSIENT:
|
---|
817 | if (prov_info->prov_state == CLIENT_STATE_REGISTER_SENT)
|
---|
818 | {
|
---|
819 | prov_info->prov_state = CLIENT_STATE_REGISTER_SEND;
|
---|
820 | }
|
---|
821 | else if (prov_info->prov_state == CLIENT_STATE_STATUS_SENT)
|
---|
822 | {
|
---|
823 | prov_info->prov_state = CLIENT_STATE_STATUS_SEND;
|
---|
824 | }
|
---|
825 | else
|
---|
826 | {
|
---|
827 | // Ideally this should not happen
|
---|
828 | LogError("State Error: Transient Error occured in the %d state", (int)transport_status);
|
---|
829 | }
|
---|
830 | break;
|
---|
831 | default:
|
---|
832 | LogError("Unknown status encountered");
|
---|
833 | break;
|
---|
834 | }
|
---|
835 | }
|
---|
836 | }
|
---|
837 |
|
---|
838 | static void destroy_instance(PROV_INSTANCE_INFO* prov_info)
|
---|
839 | {
|
---|
840 | cleanup_prov_info(prov_info);
|
---|
841 | // Clean custom request data
|
---|
842 | free(prov_info->custom_request_data);
|
---|
843 | prov_info->custom_request_data = NULL;
|
---|
844 | if (prov_info->custom_response_data != NULL)
|
---|
845 | {
|
---|
846 | json_free_serialized_string(prov_info->custom_response_data);
|
---|
847 | prov_info->custom_response_data = NULL;
|
---|
848 | }
|
---|
849 | prov_info->prov_transport_protocol->prov_transport_destroy(prov_info->transport_handle);
|
---|
850 | prov_info->transport_handle = NULL;
|
---|
851 | free(prov_info->scope_id);
|
---|
852 | prov_auth_destroy(prov_info->prov_auth_handle);
|
---|
853 | tickcounter_destroy(prov_info->tick_counter);
|
---|
854 | free(prov_info);
|
---|
855 | }
|
---|
856 |
|
---|
857 | PROV_DEVICE_LL_HANDLE Prov_Device_LL_Create(const char* uri, const char* id_scope, PROV_DEVICE_TRANSPORT_PROVIDER_FUNCTION protocol)
|
---|
858 | {
|
---|
859 | PROV_INSTANCE_INFO* result;
|
---|
860 | /* Codes_SRS_PROV_CLIENT_07_001: [If uri is NULL Prov_Device_LL_CreateFromUri shall return NULL.] */
|
---|
861 | if (uri == NULL || id_scope == NULL || protocol == NULL)
|
---|
862 | {
|
---|
863 | LogError("Invalid parameter specified uri: %p, id_scope: %p, protocol: %p", uri, id_scope, protocol);
|
---|
864 | result = NULL;
|
---|
865 | }
|
---|
866 | else
|
---|
867 | {
|
---|
868 | srand((unsigned int)get_time(NULL));
|
---|
869 |
|
---|
870 | /* Codes_SRS_PROV_CLIENT_07_002: [ Prov_Device_LL_CreateFromUri shall allocate a PROV_DEVICE_LL_HANDLE and initialize all members. ] */
|
---|
871 | result = (PROV_INSTANCE_INFO*)malloc(sizeof(PROV_INSTANCE_INFO));
|
---|
872 | if (result == NULL)
|
---|
873 | {
|
---|
874 | LogError("unable to allocate Instance Info");
|
---|
875 | }
|
---|
876 | else
|
---|
877 | {
|
---|
878 | memset(result, 0, sizeof(PROV_INSTANCE_INFO));
|
---|
879 |
|
---|
880 | /* Codes_SRS_PROV_CLIENT_07_028: [ CLIENT_STATE_READY is the initial state after the object is created which will send a uhttp_client_open call to the http endpoint. ] */
|
---|
881 | result->prov_state = CLIENT_STATE_READY;
|
---|
882 | result->retry_after_ms = PROV_GET_THROTTLE_TIME * 1000;
|
---|
883 | result->prov_transport_protocol = protocol();
|
---|
884 | result->error_reason = PROV_DEVICE_RESULT_OK;
|
---|
885 |
|
---|
886 | /* Codes_SRS_PROV_CLIENT_07_034: [ Prov_Device_LL_Create shall construct a id_scope by base64 encoding the uri. ] */
|
---|
887 | if (mallocAndStrcpy_s(&result->scope_id, id_scope) != 0)
|
---|
888 | {
|
---|
889 | /* Codes_SRS_PROV_CLIENT_07_003: [ If any error is encountered, Prov_Device_LL_CreateFromUri shall return NULL. ] */
|
---|
890 | LogError("failed to construct id_scope");
|
---|
891 | free(result);
|
---|
892 | result = NULL;
|
---|
893 | }
|
---|
894 | else if ((result->prov_auth_handle = prov_auth_create()) == NULL)
|
---|
895 | {
|
---|
896 | /* Codes_SRS_PROV_CLIENT_07_003: [ If any error is encountered, Prov_Device_LL_CreateFromUri shall return NULL. ] */
|
---|
897 | LogError("failed calling prov_auth_create\r\n");
|
---|
898 | destroy_instance(result);
|
---|
899 | result = NULL;
|
---|
900 | }
|
---|
901 | else if ((result->tick_counter = tickcounter_create()) == NULL)
|
---|
902 | {
|
---|
903 | LogError("failure: allocating tickcounter");
|
---|
904 | destroy_instance(result);
|
---|
905 | result = NULL;
|
---|
906 | }
|
---|
907 | else
|
---|
908 | {
|
---|
909 | TRANSPORT_HSM_TYPE hsm_type;
|
---|
910 | if ((result->hsm_type = prov_auth_get_type(result->prov_auth_handle)) == PROV_AUTH_TYPE_TPM)
|
---|
911 | {
|
---|
912 | hsm_type = TRANSPORT_HSM_TYPE_TPM;
|
---|
913 | }
|
---|
914 | else if (result->hsm_type == PROV_AUTH_TYPE_KEY)
|
---|
915 | {
|
---|
916 | hsm_type = TRANSPORT_HSM_TYPE_SYMM_KEY;
|
---|
917 | }
|
---|
918 | else
|
---|
919 | {
|
---|
920 | hsm_type = TRANSPORT_HSM_TYPE_X509;
|
---|
921 | }
|
---|
922 |
|
---|
923 | if ((result->transport_handle = result->prov_transport_protocol->prov_transport_create(uri, hsm_type, result->scope_id, PROV_API_VERSION, on_transport_error, result)) == NULL)
|
---|
924 | {
|
---|
925 | /* Codes_SRS_PROV_CLIENT_07_003: [ If any error is encountered, Prov_Device_LL_CreateFromUri shall return NULL. ] */
|
---|
926 | LogError("failed calling into transport create");
|
---|
927 | destroy_instance(result);
|
---|
928 | result = NULL;
|
---|
929 | }
|
---|
930 | else
|
---|
931 | {
|
---|
932 | // Ensure that we are passed the throttling time and send on the first send
|
---|
933 | (void)tickcounter_get_current_ms(result->tick_counter, &result->last_send_time_ms);
|
---|
934 | result->last_send_time_ms += result->retry_after_ms;
|
---|
935 | }
|
---|
936 | }
|
---|
937 | }
|
---|
938 | }
|
---|
939 | return (PROV_DEVICE_LL_HANDLE)result;
|
---|
940 | }
|
---|
941 |
|
---|
942 | void Prov_Device_LL_Destroy(PROV_DEVICE_LL_HANDLE handle)
|
---|
943 | {
|
---|
944 | /* Codes_SRS_PROV_CLIENT_07_005: [ If handle is NULL Prov_Device_LL_Destroy shall do nothing. ] */
|
---|
945 | if (handle != NULL)
|
---|
946 | {
|
---|
947 | /* Codes_SRS_PROV_CLIENT_07_006: [ Prov_Device_LL_Destroy shall destroy resources associated with the IoTHub_client ] */
|
---|
948 | destroy_instance(handle);
|
---|
949 | }
|
---|
950 | }
|
---|
951 |
|
---|
952 | PROV_DEVICE_RESULT Prov_Device_LL_Register_Device(PROV_DEVICE_LL_HANDLE handle, PROV_DEVICE_CLIENT_REGISTER_DEVICE_CALLBACK register_callback, void* user_context, PROV_DEVICE_CLIENT_REGISTER_STATUS_CALLBACK reg_status_cb, void* status_ctx)
|
---|
953 | {
|
---|
954 | PROV_DEVICE_RESULT result;
|
---|
955 | /* Codes_SRS_PROV_CLIENT_07_007: [ If handle or register_callback is NULL, Prov_Device_LL_Register_Device shall return PROV_CLIENT_INVALID_ARG. ] */
|
---|
956 | if (handle == NULL || register_callback == NULL)
|
---|
957 | {
|
---|
958 | LogError("Invalid parameter specified handle: %p register_callback: %p", handle, register_callback);
|
---|
959 | result = PROV_DEVICE_RESULT_INVALID_ARG;
|
---|
960 | }
|
---|
961 | /* Codes_SRS_PROV_CLIENT_07_035: [ Prov_Device_LL_Create shall store the registration_id from the security module. ] */
|
---|
962 | else if (handle->registration_id == NULL && (handle->registration_id = prov_auth_get_registration_id(handle->prov_auth_handle)) == NULL)
|
---|
963 | {
|
---|
964 | /* Codes_SRS_PROV_CLIENT_07_003: [ If any error is encountered, Prov_Device_LL_CreateFromUri shall return NULL. ] */
|
---|
965 | LogError("failure: Unable to retrieve registration Id from device auth.");
|
---|
966 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
967 | }
|
---|
968 | else
|
---|
969 | {
|
---|
970 | BUFFER_HANDLE ek_value = NULL;
|
---|
971 | BUFFER_HANDLE srk_value = NULL;
|
---|
972 |
|
---|
973 | if (handle->prov_state != CLIENT_STATE_READY)
|
---|
974 | {
|
---|
975 | LogError("state is invalid");
|
---|
976 | if (!handle->user_supplied_reg_id)
|
---|
977 | {
|
---|
978 | free(handle->registration_id);
|
---|
979 | handle->registration_id = NULL;
|
---|
980 | }
|
---|
981 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
982 | }
|
---|
983 | else
|
---|
984 | {
|
---|
985 | if (handle->hsm_type == PROV_AUTH_TYPE_TPM)
|
---|
986 | {
|
---|
987 | if ((ek_value = prov_auth_get_endorsement_key(handle->prov_auth_handle)) == NULL)
|
---|
988 | {
|
---|
989 | LogError("Could not get endorsement key from tpm");
|
---|
990 | if (!handle->user_supplied_reg_id)
|
---|
991 | {
|
---|
992 | free(handle->registration_id);
|
---|
993 | handle->registration_id = NULL;
|
---|
994 | }
|
---|
995 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
996 | }
|
---|
997 | else if ((srk_value = prov_auth_get_storage_key(handle->prov_auth_handle)) == NULL)
|
---|
998 | {
|
---|
999 | LogError("Could not get storage root key from tpm");
|
---|
1000 | if (!handle->user_supplied_reg_id)
|
---|
1001 | {
|
---|
1002 | free(handle->registration_id);
|
---|
1003 | handle->registration_id = NULL;
|
---|
1004 | }
|
---|
1005 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1006 | BUFFER_delete(ek_value);
|
---|
1007 | }
|
---|
1008 | else
|
---|
1009 | {
|
---|
1010 | result = PROV_DEVICE_RESULT_OK;
|
---|
1011 | }
|
---|
1012 | }
|
---|
1013 | else if (handle->hsm_type == PROV_AUTH_TYPE_X509)
|
---|
1014 | {
|
---|
1015 | char* x509_cert;
|
---|
1016 | char* x509_private_key;
|
---|
1017 | if ((x509_cert = prov_auth_get_certificate(handle->prov_auth_handle)) == NULL)
|
---|
1018 | {
|
---|
1019 | LogError("Could not get the x509 certificate");
|
---|
1020 | if (!handle->user_supplied_reg_id)
|
---|
1021 | {
|
---|
1022 | free(handle->registration_id);
|
---|
1023 | handle->registration_id = NULL;
|
---|
1024 | }
|
---|
1025 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1026 | }
|
---|
1027 | else if ((x509_private_key = prov_auth_get_alias_key(handle->prov_auth_handle)) == NULL)
|
---|
1028 | {
|
---|
1029 | LogError("Could not get the x509 alias key");
|
---|
1030 | if (!handle->user_supplied_reg_id)
|
---|
1031 | {
|
---|
1032 | free(handle->registration_id);
|
---|
1033 | handle->registration_id = NULL;
|
---|
1034 | }
|
---|
1035 | free(x509_cert);
|
---|
1036 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1037 | }
|
---|
1038 | else
|
---|
1039 | {
|
---|
1040 | if (handle->prov_transport_protocol->prov_transport_x509_cert(handle->transport_handle, x509_cert, x509_private_key) != 0)
|
---|
1041 | {
|
---|
1042 | LogError("unable to set the x509 certificate information on transport");
|
---|
1043 | if (!handle->user_supplied_reg_id)
|
---|
1044 | {
|
---|
1045 | free(handle->registration_id);
|
---|
1046 | handle->registration_id = NULL;
|
---|
1047 | }
|
---|
1048 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1049 | }
|
---|
1050 | else
|
---|
1051 | {
|
---|
1052 | result = PROV_DEVICE_RESULT_OK;
|
---|
1053 | }
|
---|
1054 | free(x509_cert);
|
---|
1055 | free(x509_private_key);
|
---|
1056 | }
|
---|
1057 | }
|
---|
1058 | else
|
---|
1059 | {
|
---|
1060 | result = PROV_DEVICE_RESULT_OK;
|
---|
1061 | }
|
---|
1062 | }
|
---|
1063 | if (result == PROV_DEVICE_RESULT_OK)
|
---|
1064 | {
|
---|
1065 | /* Codes_SRS_PROV_CLIENT_07_008: [ Prov_Device_LL_Register_Device shall set the state to send the registration request to on subsequent DoWork calls. ] */
|
---|
1066 | handle->register_callback = register_callback;
|
---|
1067 | handle->user_context = user_context;
|
---|
1068 |
|
---|
1069 | handle->register_status_cb = reg_status_cb;
|
---|
1070 | handle->status_user_ctx = status_ctx;
|
---|
1071 |
|
---|
1072 | // Free the custom data if its been allocated
|
---|
1073 | if (handle->custom_response_data != NULL)
|
---|
1074 | {
|
---|
1075 | json_free_serialized_string(handle->custom_response_data);
|
---|
1076 | handle->custom_response_data = NULL;
|
---|
1077 | }
|
---|
1078 |
|
---|
1079 | if (handle->prov_transport_protocol->prov_transport_open(handle->transport_handle, handle->registration_id, ek_value, srk_value, on_transport_registration_data, handle, on_transport_status, handle, prov_transport_challenge_callback, handle) != 0)
|
---|
1080 | {
|
---|
1081 | LogError("Failure establishing connection");
|
---|
1082 | if (!handle->user_supplied_reg_id)
|
---|
1083 | {
|
---|
1084 | free(handle->registration_id);
|
---|
1085 | handle->registration_id = NULL;
|
---|
1086 | }
|
---|
1087 | handle->register_callback = NULL;
|
---|
1088 | handle->user_context = NULL;
|
---|
1089 |
|
---|
1090 | handle->register_status_cb = NULL;
|
---|
1091 | handle->status_user_ctx = NULL;
|
---|
1092 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1093 | }
|
---|
1094 | else
|
---|
1095 | {
|
---|
1096 | handle->transport_open = true;
|
---|
1097 | handle->prov_state = CLIENT_STATE_REGISTER_SEND;
|
---|
1098 | /* Codes_SRS_PROV_CLIENT_07_009: [ Upon success Prov_Device_LL_Register_Device shall return PROV_CLIENT_OK. ] */
|
---|
1099 | result = PROV_DEVICE_RESULT_OK;
|
---|
1100 | }
|
---|
1101 | BUFFER_delete(ek_value);
|
---|
1102 | BUFFER_delete(srk_value);
|
---|
1103 | }
|
---|
1104 | }
|
---|
1105 | return result;
|
---|
1106 | }
|
---|
1107 |
|
---|
1108 | void Prov_Device_LL_DoWork(PROV_DEVICE_LL_HANDLE handle)
|
---|
1109 | {
|
---|
1110 | /* Codes_SRS_PROV_CLIENT_07_010: [ If handle is NULL, Prov_Device_LL_DoWork shall do nothing. ] */
|
---|
1111 | if (handle != NULL)
|
---|
1112 | {
|
---|
1113 | PROV_INSTANCE_INFO* prov_info = (PROV_INSTANCE_INFO*)handle;
|
---|
1114 | /* Codes_SRS_PROV_CLIENT_07_011: [ Prov_Device_LL_DoWork shall call the underlying http_client_dowork function ] */
|
---|
1115 | if (prov_info->prov_state != CLIENT_STATE_ERROR)
|
---|
1116 | {
|
---|
1117 | prov_info->prov_transport_protocol->prov_transport_dowork(prov_info->transport_handle);
|
---|
1118 | }
|
---|
1119 | if (prov_info->is_connected || prov_info->prov_state == CLIENT_STATE_ERROR)
|
---|
1120 | {
|
---|
1121 | tickcounter_ms_t current_time = 0;
|
---|
1122 |
|
---|
1123 | switch (prov_info->prov_state)
|
---|
1124 | {
|
---|
1125 | case CLIENT_STATE_REGISTER_SEND:
|
---|
1126 | if (tickcounter_get_current_ms(prov_info->tick_counter, ¤t_time) != 0)
|
---|
1127 | {
|
---|
1128 | LogError("Failure getting the current time");
|
---|
1129 | prov_info->error_reason = PROV_DEVICE_RESULT_ERROR;
|
---|
1130 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1131 | }
|
---|
1132 | else
|
---|
1133 | {
|
---|
1134 | if ((current_time - prov_info->last_send_time_ms) > prov_info->retry_after_ms)
|
---|
1135 | {
|
---|
1136 | /* Codes_SRS_PROV_CLIENT_07_013: [ CLIENT_STATE_REGISTER_SEND which shall construct an initial call to the service with endorsement information ] */
|
---|
1137 | if (prov_info->prov_transport_protocol->prov_transport_register(prov_info->transport_handle, prov_transport_process_json_reply, prov_transport_create_json_payload, prov_info) != 0)
|
---|
1138 | {
|
---|
1139 | LogError("Failure registering device");
|
---|
1140 | if (prov_info->error_reason == PROV_DEVICE_RESULT_OK)
|
---|
1141 | {
|
---|
1142 | prov_info->error_reason = PROV_DEVICE_RESULT_TRANSPORT;
|
---|
1143 | }
|
---|
1144 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1145 | }
|
---|
1146 | else
|
---|
1147 | {
|
---|
1148 | (void)tickcounter_get_current_ms(prov_info->tick_counter, &prov_info->timeout_value);
|
---|
1149 | prov_info->prov_state = CLIENT_STATE_REGISTER_SENT;
|
---|
1150 | }
|
---|
1151 | prov_info->last_send_time_ms = current_time;
|
---|
1152 | }
|
---|
1153 | }
|
---|
1154 | break;
|
---|
1155 |
|
---|
1156 | case CLIENT_STATE_STATUS_SEND:
|
---|
1157 | {
|
---|
1158 | if (tickcounter_get_current_ms(prov_info->tick_counter, ¤t_time) != 0)
|
---|
1159 | {
|
---|
1160 | LogError("Failure getting the current time");
|
---|
1161 | prov_info->error_reason = PROV_DEVICE_RESULT_ERROR;
|
---|
1162 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1163 | }
|
---|
1164 | else
|
---|
1165 | {
|
---|
1166 | if ((current_time - prov_info->last_send_time_ms) > prov_info->retry_after_ms)
|
---|
1167 | {
|
---|
1168 | /* Codes_SRS_PROV_CLIENT_07_026: [ Upon receiving the reply of the CLIENT_STATE_URL_REQ_SEND message from iothub_client shall process the the reply of the CLIENT_STATE_URL_REQ_SEND state ] */
|
---|
1169 | if (prov_info->prov_transport_protocol->prov_transport_get_op_status(prov_info->transport_handle) != 0)
|
---|
1170 | {
|
---|
1171 | LogError("Failure sending operation status");
|
---|
1172 | if (prov_info->error_reason == PROV_DEVICE_RESULT_OK)
|
---|
1173 | {
|
---|
1174 | prov_info->error_reason = PROV_DEVICE_RESULT_TRANSPORT;
|
---|
1175 | }
|
---|
1176 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1177 | }
|
---|
1178 | else
|
---|
1179 | {
|
---|
1180 | prov_info->prov_state = CLIENT_STATE_STATUS_SENT;
|
---|
1181 | if (tickcounter_get_current_ms(prov_info->tick_counter, &prov_info->timeout_value) != 0)
|
---|
1182 | {
|
---|
1183 | LogError("Failure getting the current time");
|
---|
1184 | prov_info->error_reason = PROV_DEVICE_RESULT_ERROR;
|
---|
1185 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1186 | }
|
---|
1187 | }
|
---|
1188 | prov_info->last_send_time_ms = current_time;
|
---|
1189 | }
|
---|
1190 | }
|
---|
1191 | break;
|
---|
1192 | }
|
---|
1193 |
|
---|
1194 | case CLIENT_STATE_REGISTER_SENT:
|
---|
1195 | case CLIENT_STATE_STATUS_SENT:
|
---|
1196 | {
|
---|
1197 | if (prov_info->prov_timeout > 0)
|
---|
1198 | {
|
---|
1199 | (void)tickcounter_get_current_ms(prov_info->tick_counter, ¤t_time);
|
---|
1200 | if ((current_time - prov_info->timeout_value) / 1000 > prov_info->prov_timeout)
|
---|
1201 | {
|
---|
1202 | LogError("Timeout waiting for reply");
|
---|
1203 | prov_info->error_reason = PROV_DEVICE_RESULT_TIMEOUT;
|
---|
1204 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1205 | }
|
---|
1206 | }
|
---|
1207 | break;
|
---|
1208 | }
|
---|
1209 |
|
---|
1210 | case CLIENT_STATE_READY:
|
---|
1211 | break;
|
---|
1212 |
|
---|
1213 | case CLIENT_STATE_ERROR:
|
---|
1214 | default:
|
---|
1215 | prov_info->register_callback(prov_info->error_reason, NULL, NULL, prov_info->user_context);
|
---|
1216 | prov_info->prov_state = CLIENT_STATE_READY;
|
---|
1217 | cleanup_prov_info(prov_info);
|
---|
1218 | break;
|
---|
1219 | }
|
---|
1220 | }
|
---|
1221 | else
|
---|
1222 | {
|
---|
1223 | // Check the connection
|
---|
1224 | if ((prov_info->prov_state != CLIENT_STATE_READY) && (prov_info->prov_timeout > 0))
|
---|
1225 | {
|
---|
1226 | tickcounter_ms_t current_time = 0;
|
---|
1227 | (void)tickcounter_get_current_ms(prov_info->tick_counter, ¤t_time);
|
---|
1228 | if ((current_time - prov_info->timeout_value) / 1000 > prov_info->prov_timeout)
|
---|
1229 | {
|
---|
1230 | LogError("Timed out connecting to provisioning service");
|
---|
1231 | prov_info->error_reason = PROV_DEVICE_RESULT_TIMEOUT;
|
---|
1232 | prov_info->prov_state = CLIENT_STATE_ERROR;
|
---|
1233 | }
|
---|
1234 | }
|
---|
1235 | }
|
---|
1236 | }
|
---|
1237 | }
|
---|
1238 |
|
---|
1239 | PROV_DEVICE_RESULT Prov_Device_LL_SetOption(PROV_DEVICE_LL_HANDLE handle, const char* option_name, const void* value)
|
---|
1240 | {
|
---|
1241 | PROV_DEVICE_RESULT result;
|
---|
1242 | if (handle == NULL || option_name == NULL)
|
---|
1243 | {
|
---|
1244 | LogError("Invalid parameter specified handle: %p option_name: %p", handle, option_name);
|
---|
1245 | result = PROV_DEVICE_RESULT_INVALID_ARG;
|
---|
1246 | }
|
---|
1247 | else
|
---|
1248 | {
|
---|
1249 | if (strcmp(option_name, OPTION_TRUSTED_CERT) == 0)
|
---|
1250 | {
|
---|
1251 | const char* cert_info = (const char*)value;
|
---|
1252 | if (handle->prov_transport_protocol->prov_transport_trusted_cert(handle->transport_handle, cert_info) != 0)
|
---|
1253 | {
|
---|
1254 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1255 | LogError("failure allocating certificate");
|
---|
1256 | }
|
---|
1257 | else
|
---|
1258 | {
|
---|
1259 | result = PROV_DEVICE_RESULT_OK;
|
---|
1260 | }
|
---|
1261 | }
|
---|
1262 | else if (strcmp(OPTION_LOG_TRACE, option_name) == 0)
|
---|
1263 | {
|
---|
1264 | bool log_trace = *((bool*)value);
|
---|
1265 | if (handle->prov_transport_protocol->prov_transport_set_trace(handle->transport_handle, log_trace) != 0)
|
---|
1266 | {
|
---|
1267 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1268 | LogError("failure setting trace option");
|
---|
1269 | }
|
---|
1270 | else
|
---|
1271 | {
|
---|
1272 | result = PROV_DEVICE_RESULT_OK;
|
---|
1273 | }
|
---|
1274 | }
|
---|
1275 | else if (strcmp(OPTION_HTTP_PROXY, option_name) == 0)
|
---|
1276 | {
|
---|
1277 | /* Codes_SRS_IOTHUB_TRANSPORT_MQTT_COMMON_01_001: [ If `option` is `proxy_data`, `value` shall be used as an `HTTP_PROXY_OPTIONS*`. ]*/
|
---|
1278 | HTTP_PROXY_OPTIONS* proxy_options = (HTTP_PROXY_OPTIONS*)value;
|
---|
1279 |
|
---|
1280 | if (handle->prov_transport_protocol->prov_transport_set_proxy(handle->transport_handle, proxy_options) != 0)
|
---|
1281 | {
|
---|
1282 | LogError("setting proxy options");
|
---|
1283 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1284 | }
|
---|
1285 | else
|
---|
1286 | {
|
---|
1287 | result = PROV_DEVICE_RESULT_OK;
|
---|
1288 | }
|
---|
1289 | }
|
---|
1290 | else if (strcmp(PROV_OPTION_TIMEOUT, option_name) == 0)
|
---|
1291 | {
|
---|
1292 | if (value == NULL)
|
---|
1293 | {
|
---|
1294 | LogError("setting PROV_OPTION_TIMEOUT option");
|
---|
1295 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1296 | }
|
---|
1297 | else
|
---|
1298 | {
|
---|
1299 | handle->prov_timeout = *((uint8_t*)value);
|
---|
1300 | result = PROV_DEVICE_RESULT_OK;
|
---|
1301 | }
|
---|
1302 | }
|
---|
1303 | else if (strcmp(PROV_REGISTRATION_ID, option_name) == 0)
|
---|
1304 | {
|
---|
1305 | if (handle->prov_state != CLIENT_STATE_READY)
|
---|
1306 | {
|
---|
1307 | LogError("registration id cannot be set after registration has begun");
|
---|
1308 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1309 | }
|
---|
1310 | else if (value == NULL)
|
---|
1311 | {
|
---|
1312 | LogError("value must be set to the correct registration id");
|
---|
1313 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1314 | }
|
---|
1315 | else
|
---|
1316 | {
|
---|
1317 | char* temp_reg;
|
---|
1318 | if (mallocAndStrcpy_s(&temp_reg, (const char*)value) != 0)
|
---|
1319 | {
|
---|
1320 | LogError("Failure allocating setting registration id");
|
---|
1321 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1322 | }
|
---|
1323 | else if (prov_auth_set_registration_id(handle->prov_auth_handle, temp_reg) != 0)
|
---|
1324 | {
|
---|
1325 | LogError("Failure setting registration id");
|
---|
1326 | free(temp_reg);
|
---|
1327 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1328 | }
|
---|
1329 | else
|
---|
1330 | {
|
---|
1331 | if (handle->registration_id != NULL)
|
---|
1332 | {
|
---|
1333 | free(handle->registration_id);
|
---|
1334 | }
|
---|
1335 | handle->registration_id = temp_reg;
|
---|
1336 | handle->user_supplied_reg_id = true;
|
---|
1337 | result = PROV_DEVICE_RESULT_OK;
|
---|
1338 | }
|
---|
1339 | }
|
---|
1340 | }
|
---|
1341 | else
|
---|
1342 | {
|
---|
1343 | if (handle->prov_transport_protocol->prov_transport_set_option(handle->transport_handle, option_name, value) != 0)
|
---|
1344 | {
|
---|
1345 | LogError("Failure in prov transport set option\n");
|
---|
1346 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1347 | }
|
---|
1348 | else
|
---|
1349 | {
|
---|
1350 | result = PROV_DEVICE_RESULT_OK;
|
---|
1351 | }
|
---|
1352 | }
|
---|
1353 | }
|
---|
1354 | return result;
|
---|
1355 | }
|
---|
1356 |
|
---|
1357 | const char* Prov_Device_LL_GetVersionString(void)
|
---|
1358 | {
|
---|
1359 | return PROV_DEVICE_CLIENT_VERSION;
|
---|
1360 | }
|
---|
1361 |
|
---|
1362 | PROV_DEVICE_RESULT Prov_Device_LL_Set_Provisioning_Payload(PROV_DEVICE_LL_HANDLE handle, const char* jsonDataField)
|
---|
1363 | {
|
---|
1364 | PROV_DEVICE_RESULT result;
|
---|
1365 | if (handle == NULL)
|
---|
1366 | {
|
---|
1367 | LogError("Invalid parameter specified handle: %p", handle);
|
---|
1368 | result = PROV_DEVICE_RESULT_INVALID_ARG;
|
---|
1369 | }
|
---|
1370 | else
|
---|
1371 | {
|
---|
1372 | char* temp_data;
|
---|
1373 | if (mallocAndStrcpy_s(&temp_data, jsonDataField) != 0)
|
---|
1374 | {
|
---|
1375 | LogError("Failure setting custom provisioning data");
|
---|
1376 | result = PROV_DEVICE_RESULT_ERROR;
|
---|
1377 | }
|
---|
1378 | else
|
---|
1379 | {
|
---|
1380 | if (handle->custom_request_data != NULL)
|
---|
1381 | {
|
---|
1382 | free(handle->custom_request_data);
|
---|
1383 | }
|
---|
1384 | handle->custom_request_data = temp_data;
|
---|
1385 | result = PROV_DEVICE_RESULT_OK;
|
---|
1386 | }
|
---|
1387 | }
|
---|
1388 | return result;
|
---|
1389 | }
|
---|
1390 |
|
---|
1391 | const char* Prov_Device_LL_Get_Provisioning_Payload(PROV_DEVICE_LL_HANDLE handle)
|
---|
1392 | {
|
---|
1393 | const char* result;
|
---|
1394 | if (handle == NULL)
|
---|
1395 | {
|
---|
1396 | LogError("Invalid parameter specified handle: %p", handle);
|
---|
1397 | result = NULL;
|
---|
1398 | }
|
---|
1399 | else
|
---|
1400 | {
|
---|
1401 | result = handle->custom_response_data;
|
---|
1402 | }
|
---|
1403 | return result;
|
---|
1404 | }
|
---|