--- /dev/null
+/*
+ * heartbeat.c
+ *
+ * Created on: Oct 24, 2019
+ * Author: parallels
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <string.h>
+#include <time.h>
+#include <math.h>
+#include <sys/time.h>
+
+#include <pthread.h>
+
+#include "heartbeat.h"
+#include "sysrepo.h"
+#include "sysrepo/values.h"
+
+#include "utils.h"
+
+#define LINE_BUFSIZE 128
+#define SLEEP_BEFORE_PNF_AUTOREG 60
+
+volatile int exit_application = 0;
+
+pthread_mutex_t lock;
+
+static CURL *curl;
+
+int _init_curl()
+{
+ curl = curl_easy_init();
+
+ if (curl == NULL) {
+ printf("cURL initialization error! Aborting call!\n");
+ return SR_ERR_OPERATION_FAILED;
+ }
+
+ return SR_ERR_OK;
+}
+
+int cleanup_curl()
+{
+ if (curl != NULL)
+ {
+ curl_easy_cleanup(curl);
+ }
+
+ return SR_ERR_OK;
+}
+
+//static void prepare_ves_message_curl(void)
+//{
+// curl_easy_reset(curl);
+// set_curl_common_info();
+//
+// char *ves_ip = getVesIpFromConfigJson();
+// int ves_port = getVesPortFromConfigJson();
+//
+// char url[100];
+// sprintf(url, "http://%s:%d/eventListener/v7", ves_ip, ves_port);
+// curl_easy_setopt(curl, CURLOPT_URL, url);
+//
+// free(ves_ip);
+//
+//// curl_easy_setopt(curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
+//
+// return;
+//}
+/*
+ * Heartbeat payload example
+ *
+ * {
+ "event": {
+ "commonEventHeader": {
+ "domain": "heartbeat",
+ "eventId": "parallels-Parallels-Virtual-Platform_2019-10-24T10:25:25.514Z",
+ "eventName": "heartbeat_Controller",
+ "eventType": "Controller",
+ "sequence": 0,
+ "priority": "Low",
+ "reportingEntityId": "",
+ "reportingEntityName": "parallels-Parallels-Virtual-Platform",
+ "sourceId": "",
+ "sourceName": "parallels-Parallels-Virtual-Platform",
+ "startEpochMicrosec": 1571912725514,
+ "lastEpochMicrosec": 1571912725514,
+ "nfNamingCode": "sdn controller",
+ "nfVendorName": "sdn",
+ "timeZoneOffset": "+00:00",
+ "version": "4.0.1",
+ "vesEventListenerVersion":"7.0.1"
+ },
+ "heartbeatFields": {
+ "heartbeatFieldsVersion": "3.0",
+ "heartbeatInterval": 20,
+ "additionalFields": {
+ "eventTime": "2019-10-24T10:25:25.514Z"
+ }
+ }
+ }
+}
+*
+* */
+
+static int send_heartbeat(int heartbeat_interval)
+{
+ CURLcode res;
+ static int sequence_number = 0;
+
+ prepare_ves_message_curl(curl);
+
+ cJSON *postDataJson = cJSON_CreateObject();
+
+ cJSON *event = cJSON_CreateObject();
+ if (event == NULL)
+ {
+ printf("Could not create JSON object: event\n");
+ return 1;
+ }
+ cJSON_AddItemToObject(postDataJson, "event", event);
+
+ char hostname[100];
+ sprintf(hostname, "%s", getenv("HOSTNAME"));
+
+ cJSON *commonEventHeader = vesCreateCommonEventHeader("heartbeat", "Controller", hostname, sequence_number++);
+ if (commonEventHeader == NULL)
+ {
+ printf("Could not create JSON object: commonEventHeader\n");
+ return 1;
+ }
+ cJSON_AddItemToObject(event, "commonEventHeader", commonEventHeader);
+
+ cJSON *heartbeatFields = vesCreateHeartbeatFields(heartbeat_interval);
+ if (heartbeatFields == NULL)
+ {
+ printf("Could not create JSON object: heartbeatFields\n");
+ return 1;
+ }
+ cJSON_AddItemToObject(event, "heartbeatFields", heartbeatFields);
+
+ char *post_data_string = NULL;
+
+ post_data_string = cJSON_PrintUnformatted(postDataJson);
+
+ printf("Post data JSON:\n%s\n", post_data_string);
+
+ if (postDataJson != NULL)
+ {
+ cJSON_Delete(postDataJson);
+ }
+
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post_data_string);
+
+ res = curl_easy_perform(curl);
+
+ if (res != CURLE_OK)
+ {
+ printf("Failed to send cURL...\n");
+ return SR_ERR_OPERATION_FAILED;
+ }
+
+ return SR_ERR_OK;
+}
+
+static void
+sigint_handler(int signum)
+{
+ exit_application = 1;
+}
+
+static int send_pnf_registration_instance(char *hostname, int port, bool is_tls)
+{
+ CURLcode res;
+ static int sequence_number = 0;
+
+ prepare_ves_message_curl(curl);
+
+ cJSON *postDataJson = cJSON_CreateObject();
+
+ cJSON *event = cJSON_CreateObject();
+ if (event == NULL)
+ {
+ printf("Could not create JSON object: event\n");
+ return 1;
+ }
+ cJSON_AddItemToObject(postDataJson, "event", event);
+
+ char source_name[100];
+ sprintf(source_name, "%s_%d", hostname, port);
+
+ cJSON *commonEventHeader = vesCreateCommonEventHeader("pnfRegistration", "EventType5G", source_name, sequence_number++);
+ if (commonEventHeader == NULL)
+ {
+ printf("Could not create JSON object: commonEventHeader\n");
+ return 1;
+ }
+ cJSON_AddItemToObject(event, "commonEventHeader", commonEventHeader);
+
+ cJSON *pnfRegistrationFields = vesCreatePnfRegistrationFields(port, is_tls);
+ if (pnfRegistrationFields == NULL)
+ {
+ printf("Could not create JSON object: pnfRegistrationFields\n");
+ return 1;
+ }
+ cJSON_AddItemToObject(event, "pnfRegistrationFields", pnfRegistrationFields);
+
+ char *post_data_string = NULL;
+
+ post_data_string = cJSON_PrintUnformatted(postDataJson);
+
+ printf("Post data JSON:\n%s\n", post_data_string);
+
+ if (postDataJson != NULL)
+ {
+ cJSON_Delete(postDataJson);
+ }
+
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post_data_string);
+
+ res = curl_easy_perform(curl);
+
+ if (res != CURLE_OK)
+ {
+ printf("Failed to send cURL...\n");
+ return SR_ERR_OPERATION_FAILED;
+ }
+
+ return SR_ERR_OK;
+}
+
+static void pnf_registration(void)
+{
+ // delay the PNF Registration VES message, until anything else is initialized
+ printf("delay the PNF Registration VES message, until anything else is initialized");
+ sleep(SLEEP_BEFORE_PNF_AUTOREG);
+
+ int is_reg = getVesRegistrationFromConfigJson();
+
+ if (!is_reg)
+ {
+ //ves-registration object is set to False, we do not make an automatic PNF registration
+ printf("ves-registration object is set to False, we do not make an automatic PNF registration");
+ return;
+ }
+
+ int rc = SR_ERR_OK, netconf_port_base = 0;
+ char *netconf_base_string = getenv("NETCONF_BASE");
+ char *hostname_string = getenv("HOSTNAME");
+
+ if (netconf_base_string != NULL)
+ {
+ rc = sscanf(netconf_base_string, "%d", &netconf_port_base);
+ if (rc != 1)
+ {
+ printf("Could not find the NETCONF base port, aborting the PNF registration...\n");
+ return;
+ }
+ }
+
+ //TODO This is where we hardcoded: 7 devices will have SSH connections and 3 devices will have TLS connections
+ for (int port = 0; port < NETCONF_CONNECTIONS_PER_DEVICE - 3; ++port)
+ {
+ pthread_mutex_lock(&lock);
+ rc = send_pnf_registration_instance(hostname_string, netconf_port_base + port, FALSE);
+ if (rc != SR_ERR_OK)
+ {
+ printf("Could not send PNF Registration SSH message...\n");
+ }
+ pthread_mutex_unlock(&lock);
+ }
+ for (int port = NETCONF_CONNECTIONS_PER_DEVICE - 3; port < NETCONF_CONNECTIONS_PER_DEVICE; ++port)
+ {
+ pthread_mutex_lock(&lock);
+ rc = send_pnf_registration_instance(hostname_string, netconf_port_base + port, TRUE);
+ pthread_mutex_unlock(&lock);
+ if (rc != SR_ERR_OK)
+ {
+ printf("Could not send PNF Registration TLS message...\n");
+ }
+ }
+
+ return;
+}
+
+int
+main(int argc, char **argv)
+{
+ int rc = SR_ERR_OK;
+
+ int heartbeat_interval = 120; //seconds
+
+ setbuf(stdout, NULL);
+
+ if (pthread_mutex_init(&lock, NULL) != 0)
+ {
+ printf("Mutex init failed...\n");
+ goto cleanup;
+ }
+
+ pthread_t pnf_autoregistration_thread;
+ if(pthread_create(&pnf_autoregistration_thread, NULL, pnf_registration, NULL))
+ {
+ fprintf(stderr, "Could not create thread for pnf auto registration\n");
+ goto cleanup;
+ }
+
+ rc = _init_curl();
+ if (rc != SR_ERR_OK)
+ {
+ fprintf(stderr, "Could not initialize cURL: %s\n", sr_strerror(rc));
+ goto cleanup;
+ }
+
+ /* loop until ctrl-c is pressed / SIGINT is received */
+ signal(SIGINT, sigint_handler);
+ signal(SIGTERM, sigint_handler);
+ signal(SIGPIPE, SIG_IGN);
+
+ while (!exit_application)
+ {
+ heartbeat_interval = getVesHeartbeatPeriodFromConfigJson();
+
+ if (heartbeat_interval > 0)
+ {
+ pthread_mutex_lock(&lock);
+ send_heartbeat(heartbeat_interval);
+ pthread_mutex_unlock(&lock);
+ sleep(heartbeat_interval);
+ }
+ else
+ {
+ sleep(1);
+ }
+ }
+
+ printf("Application exit requested, exiting.\n");
+
+cleanup:
+
+ rc = cleanup_curl();
+
+ return rc;
+}
+