Make network address url data type configurable so we can support both IPv4 /...

Make network address url data type configurable so we can support both IPv4 / IPv6 multicast from  CLI.

coupler/opc-ua-server/keep_alive_publisher.h

@@ -177,7 +177,7 @@ static void enablePublishHeartBeat(UA_Server *server, UA_ServerConfig *config){
 
     UA_String transportProfile = UA_STRING(DEFAULT_TRANSPORT_PROFILE);
     UA_NetworkAddressUrlDataType networkAddressUrl =
-        {UA_STRING_NULL , UA_STRING(DEFAULT_NETWORK_ADDRESS_URL)};
+        {UA_STRING_NULL , UA_STRING(NETWORK_ADDRESS_URL_DATA_TYPE)};
     addPubSubConnection(server, &transportProfile, &networkAddressUrl);
     addPublishedDataSet(server);
     for(i = 0; i < countof(publishedVariableArray); i++) {

coupler/opc-ua-server/keep_alive_subscriber.h

@@ -291,7 +291,7 @@ void callbackCheckHeartBeat() {
 static int enableSubscribeToHeartBeat(UA_Server *server, UA_ServerConfig *config){
     // enable subscribe to keep-alive messages
     UA_String transportProfile = UA_STRING(DEFAULT_TRANSPORT_PROFILE);
-    UA_NetworkAddressUrlDataType networkAddressUrl = {UA_STRING_NULL , UA_STRING(DEFAULT_NETWORK_ADDRESS_URL)};
+    UA_NetworkAddressUrlDataType networkAddressUrl = {UA_STRING_NULL , UA_STRING(NETWORK_ADDRESS_URL_DATA_TYPE)};
     addPubSubConnectionXXX(server, &transportProfile, &networkAddressUrl);
 
     /* Add ReaderGroup to the created PubSubConnection */

coupler/opc-ua-server/server.c

@@ -49,7 +49,7 @@ const int DEFAULT_ID = 0;
 
 // OPC UA's Pub/Sub profile
 char *DEFAULT_TRANSPORT_PROFILE = "http://opcfoundation.org/UA-Profile/Transport/pubsub-udp-uadp";
-char *DEFAULT_NETWORK_ADDRESS_URL = "opc.udp://224.0.0.22:4840/";
+char *NETWORK_ADDRESS_URL_DATA_TYPE = "opc.udp://224.0.0.22:4840/";
 
 #include "keep_alive_publisher.h"
 #include "keep_alive_subscriber.h"
@@ -74,6 +74,8 @@ static struct argp_option options[] = {
   {"heart-beat-interval",  't', "500", 0, "Heart beat interval in ms."},
   {"heart-beat-id-list",  'l', "", 0, "Comma separated list of IDs of couplers to watch for heart beats. \
 If heart beat is missing coupler goes to safe mode."},
+  {"network-address-url-data-type", 'n', "opc.udp://224.0.0.22:4840/", 0, "Netwrok address URL type used for Pub/Sub."},
+
   {0}
 };
 
@@ -91,6 +93,7 @@ struct arguments
     bool heart_beat;
     int heart_beat_interval;
     char *heart_beat_id_list;
+    char *network_address_url_data_type;
 };
 
 static error_t parse_opt(int key, char *arg, struct argp_state *state)
@@ -133,6 +136,9 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state)
     case 'l':
       arguments->heart_beat_id_list = arg;
       break;
+    case 'n':
+      arguments->network_address_url_data_type = arg;
+      break;
     case ARGP_KEY_ARG:
       return 0;
     default: 
@@ -176,6 +182,7 @@ int main(int argc, char **argv)
     arguments.certificate = "";
     arguments.id = DEFAULT_ID;
     arguments.heart_beat_interval = DEFAULT_HEART_BEAT_INTERVAL;
+    arguments.network_address_url_data_type = NETWORK_ADDRESS_URL_DATA_TYPE;
     argp_parse(&argp, argc, argv, 0, 0, &arguments);
 
     printf("Mode=%d\n", arguments.mode);
@@ -188,12 +195,14 @@ int main(int argc, char **argv)
     printf("Heart beat=%d\n", arguments.heart_beat);
     printf("Heart beat interval=%d ms\n", arguments.heart_beat_interval);
     printf("Heart beat ID list=%s\n", arguments.heart_beat_id_list);
+    printf("Network address URL data type=%s\n", arguments.network_address_url_data_type);
 
     // transfer to global variables (CLI input)
     COUPLER_ID = arguments.id;
     I2C_VIRTUAL_MODE = arguments.mode;
     I2C_BLOCK_DEVICE_NAME = arguments.device;
     HEART_BEAT_INTERVAL = arguments.heart_beat_interval;
+    NETWORK_ADDRESS_URL_DATA_TYPE = arguments.network_address_url_data_type;
 
     // convert arguments.slave_address_list -> I2C_SLAVE_ADDR_LIST
     i = 0;