Add option to enable TLS security on a socket

Author: mazgch

src/SparkFun_u-blox_SARA-R5_Arduino_Library.cpp

@@ -2705,6 +2705,20 @@ int SARA_R5::socketOpen(SARA_R5_socket_protocol_t protocol, unsigned int localPo
   return sockId;
 }
 
+$SARA_R5_error_t SARA_R5::socketSetSecure(int profile, bool secure, int secprofile)
+{
+  SARA_R5_error_t err;
+  char *command = sara_r5_calloc_char(strlen(SARA_R5_SECURE_SOCKET) + 32);
+  if (command == nullptr)
+    return SARA_R5_ERROR_OUT_OF_MEMORY;
+  if ((secprofile == -1) || !secure) sprintf(command, "%s=%d,%d", SARA_R5_SECURE_SOCKET, profile, secure);
+  else sprintf(command, "%s=%d,%d,%d", SARA_R5_SECURE_SOCKET, profile, secure, secprofile);
+  err = sendCommandWithResponse(command, SARA_R5_RESPONSE_OK_OR_ERROR, nullptr,
+                                SARA_R5_STANDARD_RESPONSE_TIMEOUT);
+  free(command);
+  return err;
+}
+
 SARA_R5_error_t SARA_R5::socketClose(int socket, unsigned long timeout)
 {
   SARA_R5_error_t err;
@@ -4089,7 +4103,7 @@ SARA_R5_error_t SARA_R5::setHTTPsecure(int profile, bool secure, int secprofile)
   command = sara_r5_calloc_char(strlen(SARA_R5_HTTP_PROFILE) + 32);
   if (command == nullptr)
     return SARA_R5_ERROR_OUT_OF_MEMORY;
-  if (secprofile == -1)
+  if ((secprofile == -1) || !secure) 
       sprintf(command, "%s=%d,%d,%d", SARA_R5_HTTP_PROFILE, profile, SARA_R5_HTTP_OP_CODE_SECURE,
           secure);
   else sprintf(command, "%s=%d,%d,%d,%d", SARA_R5_HTTP_PROFILE, profile, SARA_R5_HTTP_OP_CODE_SECURE,
@@ -4302,7 +4316,7 @@ SARA_R5_error_t SARA_R5::setMQTTsecure(bool secure, int secprofile)
     command = sara_r5_calloc_char(strlen(SARA_R5_MQTT_PROFILE) + 16);
     if (command == nullptr)
       return SARA_R5_ERROR_OUT_OF_MEMORY;
-    if (secprofile == -1) sprintf(command, "%s=%d,%d", SARA_R5_MQTT_PROFILE, SARA_R5_MQTT_PROFILE_SECURE, secure);
+    if ((secprofile == -1) || !secure) sprintf(command, "%s=%d,%d", SARA_R5_MQTT_PROFILE, SARA_R5_MQTT_PROFILE_SECURE, secure);
     else sprintf(command, "%s=%d,%d,%d", SARA_R5_MQTT_PROFILE, SARA_R5_MQTT_PROFILE_SECURE, secure, secprofile);
     err = sendCommandWithResponse(command, SARA_R5_RESPONSE_OK_OR_ERROR, nullptr,
                                   SARA_R5_STANDARD_RESPONSE_TIMEOUT);

src/SparkFun_u-blox_SARA-R5_Arduino_Library.h

@@ -153,6 +153,7 @@ const char SARA_R5_GET_ERROR[] = "+USOER";          // Get last socket error.
 const char SARA_R5_SOCKET_DIRECT_LINK[] = "+USODL"; // Set socket in Direct Link mode
 const char SARA_R5_SOCKET_CONTROL[] = "+USOCTL";    // Query the socket parameters
 const char SARA_R5_UD_CONFIGURATION[] = "+UDCONF";  // User Datagram Configuration
+const char SARA_R5_SECURE_SOCKET[] = "+USOSEC";     // SSL/TLS/DTLS mode configuration
 // ### Ping
 const char SARA_R5_PING_COMMAND[] = "+UPING"; // Ping
 // ### HTTP
@@ -897,6 +898,8 @@ class SARA_R5 : public Print
   SARA_R5_error_t querySocketRemoteIPAddress(int socket, IPAddress *address, int *port);
   SARA_R5_error_t querySocketStatusTCP(int socket, SARA_R5_tcp_socket_status_t *status);
   SARA_R5_error_t querySocketOutUnackData(int socket, uint32_t *total);
+  // enable / disable socket securoty 
+  SARA_R5_error_t socketSetSecure(int profile, bool secure, int secprofile = -1);
   // Return the most recent socket error
   int socketGetLastError();
   // Return the remote IP Address from the most recent socket listen indication (socket connection)