fix(endpoint): Unify error/status code for consistency

The error and the status code inside defined_error.h should be
unified. This commit replaces all the endpoint_retcode_t to status_t
structure for error/status code consistency. Besides, it also removes
the defined_error cc_library and the bazel rule depending on it.

Close #598

common/BUILD

@@ -45,8 +45,3 @@ cc_library(
         "@entangled//common/model:transaction",
     ],
 )
-
-cc_library(
-    name = "defined_error",
-    hdrs = ["defined_error.h"],
-)

common/ta_errors.h

@@ -56,6 +56,7 @@ extern "C" {
 #define SC_MODULE_MQTT (0x0A << SC_MODULE_SHIFT)
 #define SC_MODULE_STORAGE (0x0B << SC_MODULE_SHIFT)
 #define SC_MODULE_CORE (0x0C << SC_MODULE_SHIFT)
+#define SC_MODULE_ENDPOINT (0x0D << SC_MODULE_SHIFT)
 /** @} */
 
 /** @name serverity code */
@@ -179,6 +180,28 @@ typedef enum {
   SC_UTILS_TIMER_ERROR = 0x02 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
   /**< Errors occurred in timer function */
   SC_UTILS_TIMER_EXPIRED = 0x03 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< Failed to send message */
+  SC_UTILS_HTTPS_SEND_ERROR = 0x04 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< HTTPS module initialize error */
+  SC_UTILS_HTTPS_INIT_ERROR = 0x05 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< HTTPS X509 certificate parse error */
+  SC_UTILS_HTTPS_X509_ERROR = 0x06 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< HTTPS initial connection error */
+  SC_UTILS_HTTPS_CONN_ERROR = 0x07 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< HTTPS setting SSL config error */
+  SC_UTILS_HTTPS_SSL_ERROR = 0x08 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< HTTPS response error */
+  SC_UTILS_HTTPS_RESPONSE_ERROR = 0x09 | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< Error occured when serialize message */
+  SC_UTILS_TEXT_SERIALIZE = 0x0A | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< Error occured when deserialize message */
+  SC_UTILS_TEXT_DESERIALIZE = 0x0B | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< Out of memory error */
+  SC_UTILS_OOM_ERROR = 0x0C | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< Overflow error */
+  SC_UTILS_OVERFLOW_ERROR = 0x0D | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
+  /**< Error occured when encrypt or descrypt message */
+  SC_UTILS_CIPHER_ERROR = 0x0E | SC_MODULE_UTILS | SC_SEVERITY_FATAL,
   /**< Timer expired */
 
   // HTTP module
@@ -231,6 +254,22 @@ typedef enum {
   SC_CORE_IRI_UNSYNC = 0x03 | SC_MODULE_CORE | SC_SEVERITY_FATAL,
   /**< IRI host is unsynchronized */
 
+  // Endpoint module
+  /**< Failed to initialize the device  */
+  SC_ENDPOINT_DEVICE_INIT = 0x01 | SC_MODULE_ENDPOINT | SC_SEVERITY_FATAL,
+  /**< Failed to finalize the device */
+  SC_ENDPOINT_DEVICE_FINI = 0x02 | SC_MODULE_ENDPOINT | SC_SEVERITY_FATAL,
+  /**< Uart error occured in device component */
+  SC_ENDPOINT_UART = 0x03 | SC_MODULE_ENDPOINT | SC_SEVERITY_FATAL,
+  /**< Error occured inside secure storage */
+  SC_ENDPOINT_SEC_FAULT = 0x04 | SC_MODULE_ENDPOINT | SC_SEVERITY_MINOR,
+  /**< Error occured when item not found inside secure storage */
+  SC_ENDPOINT_SEC_ITEM_NOT_FOUND = 0x05 | SC_MODULE_ENDPOINT | SC_SEVERITY_MINOR,
+  /**< Error occured when the secure storage service is unavailable */
+  SC_ENDPOINT_SEC_UNAVAILABLE = 0x06 | SC_MODULE_ENDPOINT | SC_SEVERITY_MINOR,
+  /**< Error occured when the sending transfer message */
+  SC_ENDPOINT_SEND_TRANSFER = 0x07 | SC_MODULE_ENDPOINT | SC_SEVERITY_FATAL,
+
 } status_t;
 
 typedef enum {

endpoint/endpoint.c

@@ -29,9 +29,9 @@ const char* SSL_SEED = STRINGIZE_VALUE_OF(TA_SSL_SEED);
 
 #define SEND_TRANSACTION_API "transaction/"
 
-endpoint_retcode_t send_transaction_information(int value, const char* message, const char* message_fmt,
-                                                const char* tag, const char* address, const char* next_address,
-                                                const uint8_t* private_key, const char* device_id, uint8_t* iv) {
+status_t send_transaction_information(int value, const char* message, const char* message_fmt, const char* tag,
+                                      const char* address, const char* next_address, const uint8_t* private_key,
+                                      const char* device_id, uint8_t* iv) {
   char tryte_msg[MAX_MSG_LEN] = {0};
   char msg[MAX_MSG_LEN] = {0};
   char ciphertext[MAX_MSG_LEN] = {0};
@@ -42,7 +42,7 @@ endpoint_retcode_t send_transaction_information(int value, const char* message,
   if (ret < 0) {
     // FIXME: Replace to default logger
     fprintf(stderr, "message is to long");
-    return RET_FAULT;
+    return SC_ENDPOINT_SEND_TRANSFER;
   }
 
   size_t msg_len = 0;
@@ -59,7 +59,7 @@ endpoint_retcode_t send_transaction_information(int value, const char* message,
   memcpy(iv, encrypt_ctx.iv, AES_IV_SIZE);
 
   // FIXME: Replace to default logger
-  if (ret != RET_OK) {
+  if (ret != SC_OK) {
     fprintf(stderr, "%s\n", "encrypt msg error");
     return ret;
   }
@@ -72,14 +72,14 @@ endpoint_retcode_t send_transaction_information(int value, const char* message,
   if (ret < 0) {
     // FIXME: Replace to default logger
     fprintf(stderr, "message is to long");
-    return RET_FAULT;
+    return SC_ENDPOINT_SEND_TRANSFER;
   }
 
-  if (send_https_msg(HOST, PORT, SEND_TRANSACTION_API, req_body, MAX_MSG_LEN, SSL_SEED) != RET_OK) {
+  if (send_https_msg(HOST, PORT, SEND_TRANSACTION_API, req_body, MAX_MSG_LEN, SSL_SEED) != SC_OK) {
     // FIXME: Replace to default logger
     fprintf(stderr, "%s\n", "send http message error");
-    return RET_FAULT;
+    return SC_ENDPOINT_SEND_TRANSFER;
   }
 
-  return RET_OK;
+  return SC_OK;
 }

endpoint/endpoint.h

@@ -13,7 +13,7 @@
 #define MAX_MSG_LEN 1024
 
 #include <stdint.h>
-#include "common/defined_error.h"
+#include "common/ta_errors.h"
 
 /**
  * @brief Send transaction information to tangle accelerator
@@ -30,10 +30,10 @@
  * @param[in] device_id Device id from device
  * @param[in/out] iv Initialization vector, must be read/write. The length of iv must be AES_IV_SIZE @see #ta_cipher_ctx
  *
- * @return #endpoint_retcode_t
+ * @return #status_t
  */
-endpoint_retcode_t send_transaction_information(const int value, const char* message, const char* message_fmt,
-                                                const char* tag, const char* address, const char* next_address,
-                                                const uint8_t* private_key, const char* device_id, uint8_t* iv);
+status_t send_transaction_information(const int value, const char* message, const char* message_fmt, const char* tag,
+                                      const char* address, const char* next_address, const uint8_t* private_key,
+                                      const char* device_id, uint8_t* iv);
 
 #endif  // ENDPOINT_H

endpoint/hal/device.c

@@ -32,28 +32,28 @@ device_t *ta_device(const char *type) {
   return *p;
 }
 
-endpoint_retcode_t register_device(struct device_type *dv) {
-  endpoint_retcode_t res = RET_OK;
+status_t register_device(struct device_type *dv) {
+  status_t res = SC_OK;
   struct device_type **p;
   if (dv->next) {
-    return -RET_DEVICE_INIT;
+    return SC_DEVICE_INIT;
   }
   p = find_device(dv->name, strlen(dv->name));
   if (*p) {
-    res = -RET_DEVICE_INIT;
+    res = SC_DEVICE_INIT;
   } else {
     *p = dv;
   }
   return res;
 }
 
-endpoint_retcode_t unregister_device(struct device_type *dv) {
+status_t unregister_device(struct device_type *dv) {
   for (struct device_type **tmp = &devices; *tmp != NULL; tmp = &(*tmp)->next) {
     if (dv == *tmp) {
       *tmp = dv->next;
       dv->next = NULL;
-      return RET_OK;
+      return SC_OK;
     }
   }
-  return -RET_DEVICE_FINI;
+  return SC_DEVICE_FINI;
 }

endpoint/hal/device.h

@@ -17,7 +17,7 @@ extern "C" {
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "defined_error.h"
+#include "ta_errors.h"
 
 /*! device initialization entry point */
 #define DECLARE_DEVICE(name)                                  \
@@ -27,21 +27,21 @@ extern "C" {
 typedef struct device_type device_t;
 
 struct device_operations {
-  endpoint_retcode_t (*init)(void);               /**< initialize device */
-  void (*fini)(void);                             /**< destructor of device  */
-  endpoint_retcode_t (*get_key)(uint8_t *);       /**< get device private key */
-  endpoint_retcode_t (*get_device_id)(uint8_t *); /**< get device id          */
+  status_t (*init)(void);               /**< initialize device */
+  void (*fini)(void);                   /**< destructor of device  */
+  status_t (*get_key)(uint8_t *);       /**< get device private key */
+  status_t (*get_device_id)(uint8_t *); /**< get device id          */
 };
 
 struct uart_operations {
-  endpoint_retcode_t (*init)(const uint8_t *device); /**< initialize uart */
-  void (*write)(const int fd, const char *cmd);      /**< write command to uart */
-  char *(*read)(const int fd);                       /**< read from uart */
-  void (*clean)(const int fd);                       /**< flush uart buffer */
+  status_t (*init)(const uint8_t *device);      /**< initialize uart */
+  void (*write)(const int fd, const char *cmd); /**< write command to uart */
+  char *(*read)(const int fd);                  /**< read from uart */
+  void (*clean)(const int fd);                  /**< flush uart buffer */
 };
 
 struct secure_store_operations {
-  endpoint_retcode_t (*init)(void); /**< initialize secure storage */
+  status_t (*init)(void); /**< initialize secure storage */
   /**
    * @brief Write an item to secure storage
    *
@@ -50,12 +50,12 @@ struct secure_store_operations {
    * @param[in] buf_size Length of data
    *
    * @return
-   * - #RET_OK on success
+   * - #SC_OK on success
    * - #RET_NO_MEMORY on no memory error
-   * - #RET_UNAVAILABLE on unavailable secure storage
-   * - #RET_FAULT on some other error
+   * - #SC_ENDPOINT_SEC_UNAVAILABLE on unavailable secure storage
+   * - #SC_ENDPOINT_SEC_FAULT on some other error
    */
-  endpoint_retcode_t (*write)(const char *name, const uint8_t *buf, size_t buf_size);
+  status_t (*write)(const char *name, const uint8_t *buf, size_t buf_size);
   /**
    * @brief Read an item from secure storage
    *
@@ -64,25 +64,25 @@ struct secure_store_operations {
    * @param[out] buf_size Pointer to length of data
    *
    * @return
-   * - #RET_OK on success
-   * - #RET_OVERFLOW error on the buffer is too small
-   * - #RET_NOT_FOUND error on the item not found inside secure storage
-   * - #RET_UNAVAILABLE error if the storage is currently unavailable
-   * - #RET_FAULT on some other error
+   * - #SC_OK on success
+   * - #SC_UTILS_OVERFLOW_ERROR error on the buffer is too small
+   * - #SC_ENDPOINT_SEC_ITEM_NOT_FOUND error on the item not found inside secure storage
+   * - #SC_ENDPOINT_SEC_UNAVAILABLE error if the storage is currently unavailable
+   * - #SC_ENDPOINT_SEC_FAULT on some other error
    */
-  endpoint_retcode_t (*read)(const char *name, uint8_t *buf, size_t *buf_size);
+  status_t (*read)(const char *name, uint8_t *buf, size_t *buf_size);
   /**
    * @brief Delete item in secure storage
    *
    * @param[in] name Name of item
    *
    * @return
-   * - #RET_OK on success
-   * - #RET_NOT_FOUND error on the item not found inside secure storage
-   * - #RET_UNAVAILABLE error if the storage is currently unavailable
-   * - #RET_FAULT if there are some other error
+   * - #SC_OK on success
+   * - #SC_ENDPOINT_SEC_ITEM_NOT_FOUND error on the item not found inside secure storage
+   * - #SC_ENDPOINT_SEC_UNAVAILABLE error if the storage is currently unavailable
+   * - #SC_ENDPOINT_SEC_FAULT if there are some other error
    */
-  endpoint_retcode_t (*delete)(const char *name);
+  status_t (*delete)(const char *name);
 };
 
 struct device_type {
@@ -112,21 +112,21 @@ device_t *ta_device(const char *device);
  * @param[in] dv Device to register
  *
  * @return
- * - #RET_OK on success
- * - #RET_DEVICE_INIT on failed
+ * - #SC_OK on success
+ * - #SC_DEVICE_INIT on failed
  */
-endpoint_retcode_t register_device(struct device_type *dv);
+status_t register_device(struct device_type *dv);
 
 /**
  * @brief Unregister device
  *
  * @param[in] dv Device to unregister
  *
  * @return
- * - #RET_OK on success
- * - #RET_DEVICE_FINI on failed
+ * - #SC_OK on success
+ * - #SC_DEVICE_FINI on failed
  */
-endpoint_retcode_t unregister_device(struct device_type *dv);
+status_t unregister_device(struct device_type *dv);
 
 #ifdef __cplusplus
 }

endpoint/test_endpoint.c

@@ -10,8 +10,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
-#include "common/defined_error.h"
 #include "common/macros.h"
+#include "common/ta_errors.h"
 #include "endpoint.h"
 #include "tests/test_define.h"
 #include "utils/cipher.h"
@@ -61,9 +61,9 @@ void test_endpoint(void) {
   strftime(time_str, 26, "%Y-%m-%d %H:%M:%S", tm_info);
   gen_rand_trytes(next_addr, ADDR_LEN);
 
-  endpoint_retcode_t ret = send_transaction_information(TEST_VALUE, TEST_MESSAGE, TEST_MESSAGE_FMT, TEST_TAG,
-                                                        TEST_ADDRESS, next_addr, test_key, TEST_DEVICE_ID, iv);
-  TEST_ASSERT(ret == RET_OK);
+  status_t ret = send_transaction_information(TEST_VALUE, TEST_MESSAGE, TEST_MESSAGE_FMT, TEST_TAG, TEST_ADDRESS,
+                                              next_addr, test_key, TEST_DEVICE_ID, iv);
+  TEST_ASSERT(ret == SC_OK);
 }
 
 int main(int argc, char *argv[]) {