vnfs/VESreporting_vFW5.0/vpp_measurement_reporter.c

   1
   2 /*************************************************************************//**
   3  *
   4  * Copyright © 2019 AT&T Intellectual Property. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  ****************************************************************************/
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22 #include <string.h>
  23 #include <sys/time.h>
  24
  25 #include "evel.h"
  26
  27 #define BUFSIZE 128
  28 #define READ_INTERVAL 10
  29
  30 typedef struct dummy_vpp_metrics_struct {
  31   int bytes_in;
  32   int bytes_out;
  33   int packets_in;
  34   int packets_out;
  35 } vpp_metrics_struct;
  36
  37 void read_vpp_metrics(vpp_metrics_struct *, char *);
  38
  39 int main(int argc, char** argv)
  40 {
  41   EVEL_ERR_CODES evel_rc = EVEL_SUCCESS;
  42   EVENT_MEASUREMENT* vpp_m = NULL;
  43   EVENT_HEADER* vpp_m_header = NULL;
  44   EVENT_HEADER* batch_header = NULL;
  45   MEASUREMENT_VNIC_PERFORMANCE * vnic_performance = NULL;
  46   int bytes_in_this_round;
  47   int bytes_out_this_round;
  48   int packets_in_this_round;
  49   int packets_out_this_round;
  50   vpp_metrics_struct* last_vpp_metrics = malloc(sizeof(vpp_metrics_struct));
  51   vpp_metrics_struct* curr_vpp_metrics = malloc(sizeof(vpp_metrics_struct));
  52   struct timeval time_val;
  53   time_t start_epoch;
  54   time_t last_epoch;
  55   char hostname[BUFSIZE];
  56   char eventName[BUFSIZE];
  57   char eventId[BUFSIZE];
  58   char* fqdn2 = NULL;
  59   int port2 = 0;
  60   char * vnic = NULL;
  61   memset(eventName, 0, BUFSIZE);
  62   memset(eventId, 0, BUFSIZE);
  63   memset(hostname, 0, BUFSIZE);
  64
  65   strcpy(eventName, "vFirewallBroadcastPackets");
  66   strcpy(eventId, "mvfs00000001");
  67
  68   char* fqdn = argv[1];
  69   int port = atoi(argv[2]);
  70   char* caFile = "/opt/config/onap-ca.crt";
  71   char* userName = "sample1";
  72   char* passWord = "sample1";
  73
  74   if(argc == 6)
  75   {
  76      fqdn2 = argv[3];
  77      port2 = atoi(argv[4]);
  78      vnic = argv[5];
  79   }
  80   else
  81      vnic = argv[3];
  82
  83   printf("\nVector Packet Processing (VPP) measurement collection\n");
  84   fflush(stdout);
  85
  86   if (!((argc == 4) || (argc == 6)))
  87   {
  88     fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <FQDN>|<IP address> <port> <interface> \n", argv[0]);
  89     fprintf(stderr, "OR\n");
  90     fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <interface>\n", argv[0]);
  91     exit(-1);
  92   }
  93
  94   /**************************************************************************/
  95   /* Initialize                                                             */
  96   /**************************************************************************/
  97   if(evel_initialize(fqdn,                         /* FQDN                  */
  98                      port,                         /* Port                  */
  99                      fqdn2,                        /* Backup FQDN           */
 100                      port2,                        /* Backup port           */
 101                      NULL,                         /* optional path         */
 102                      NULL,                         /* optional topic        */
 103                      100,                          /* Ring Buffer size      */
 104                      1,                            /* HTTPS?                */
 105                      NULL,                         /* cert file             */
 106                      NULL,                         /* key  file             */
 107                      caFile,                       /* ca   file             */
 108                      NULL,                         /* ca   directory        */
 109                      0,                            /* verify peer           */
 110                      0,                            /* verify host           */
 111                      userName,                     /* Username              */
 112                      passWord,                     /* Password              */
 113                      "sample1",                    /* Username2             */
 114                      "sample1",                    /* Password2             */
 115                      NULL,                         /* Source ip             */
 116                      NULL,                         /* Source ip2            */
 117                      EVEL_SOURCE_VIRTUAL_MACHINE,  /* Source type           */
 118                      "vFirewall",                  /* Role                  */
 119                      1))                           /* Verbosity             */
 120
 121   {
 122     fprintf(stderr, "\nFailed to initialize the EVEL library!!!\n");
 123     exit(-1);
 124   }
 125   else
 126   {
 127     printf("\nInitialization completed\n");
 128   }
 129
 130   gethostname(hostname, BUFSIZE);
 131   memset(last_vpp_metrics, 0, sizeof(vpp_metrics_struct));
 132   read_vpp_metrics(last_vpp_metrics, vnic);
 133   gettimeofday(&time_val, NULL);
 134   start_epoch = time_val.tv_sec * 1000000 + time_val.tv_usec;
 135   sleep(READ_INTERVAL);
 136
 137   /***************************************************************************/
 138   /* Collect metrics from the VNIC                                           */
 139   /***************************************************************************/
 140   while(1) {
 141     memset(curr_vpp_metrics, 0, sizeof(vpp_metrics_struct));
 142     read_vpp_metrics(curr_vpp_metrics, vnic);
 143
 144     if(curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in > 0) {
 145       bytes_in_this_round = curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in;
 146     }
 147     else {
 148       bytes_in_this_round = 0;
 149     }
 150     if(curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out > 0) {
 151       bytes_out_this_round = curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out;
 152     }
 153     else {
 154       bytes_out_this_round = 0;
 155     }
 156     if(curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in > 0) {
 157       packets_in_this_round = curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in;
 158     }
 159     else {
 160       packets_in_this_round = 0;
 161     }
 162     if(curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out > 0) {
 163       packets_out_this_round = curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out;
 164     }
 165     else {
 166       packets_out_this_round = 0;
 167     }
 168
 169     vpp_m = evel_new_measurement(READ_INTERVAL, eventName, eventId);
 170
 171     if(vpp_m != NULL) {
 172       printf("New measurement report created...\n");
 173       vnic_performance = (MEASUREMENT_VNIC_PERFORMANCE *)evel_measurement_new_vnic_performance(vnic, "true");
 174       evel_meas_vnic_performance_add(vpp_m, vnic_performance);
 175       evel_vnic_performance_rx_total_pkt_delta_set(vnic_performance, packets_in_this_round);
 176       evel_vnic_performance_tx_total_pkt_delta_set(vnic_performance, packets_out_this_round);
 177
 178       evel_vnic_performance_rx_octets_delta_set(vnic_performance, bytes_in_this_round);
 179       evel_vnic_performance_tx_octets_delta_set(vnic_performance, bytes_out_this_round);
 180
 181       /***************************************************************************/
 182       /* Set parameters in the MEASUREMENT header packet                         */
 183       /***************************************************************************/
 184       last_epoch = start_epoch + READ_INTERVAL * 1000000;
 185       vpp_m_header = (EVENT_HEADER *)vpp_m;
 186       vpp_m_header->start_epoch_microsec = start_epoch;
 187       vpp_m_header->last_epoch_microsec = last_epoch;
 188       evel_reporting_entity_id_set(vpp_m_header, "No UUID available");
 189       printf("1111\n");
 190       evel_reporting_entity_name_set(vpp_m_header, hostname);
 191       printf("1111\n");
 192       // evel_rc = evel_post_event(vpp_m_header);
 193       batch_header = evel_new_batch("batch_event_name", "bevent_id");
 194       evel_batch_add_event(batch_header, vpp_m_header);
 195       evel_rc = evel_post_event(batch_header);
 196
 197       if(evel_rc == EVEL_SUCCESS) {
 198         printf("Measurement report correctly sent to the collector!\n");
 199       }
 200       else {
 201         printf("Post failed %d (%s)\n", evel_rc, evel_error_string());
 202       }
 203     }
 204     else {
 205       printf("New measurement report failed (%s)\n", evel_error_string());
 206     }
 207
 208     last_vpp_metrics->bytes_in = curr_vpp_metrics->bytes_in;
 209     last_vpp_metrics->bytes_out = curr_vpp_metrics->bytes_out;
 210     last_vpp_metrics->packets_in = curr_vpp_metrics->packets_in;
 211     last_vpp_metrics->packets_out = curr_vpp_metrics->packets_out;
 212     gettimeofday(&time_val, NULL);
 213     start_epoch = time_val.tv_sec * 1000000 + time_val.tv_usec;
 214
 215     sleep(READ_INTERVAL);
 216   }
 217
 218   /***************************************************************************/
 219   /* Terminate                                                               */
 220   /***************************************************************************/
 221   sleep(1);
 222   free(last_vpp_metrics);
 223   free(curr_vpp_metrics);
 224   evel_terminate();
 225   printf("Terminated\n");
 226
 227   return 0;
 228 }
 229
 230 void read_vpp_metrics(vpp_metrics_struct *vpp_metrics, char *vnic) {
 231   // Define an array of char that contains the parameters of the unix 'cut' command
 232   char* params[] = {"-f3", "-f11", "-f4", "-f12"};
 233   // Define the unix command to execute in order to read metrics from the vNIC
 234   char* cmd_prefix = "sudo cat /proc/net/dev | grep \"";
 235   char* cmd_mid = "\" | tr -s \' \' | cut -d\' \' ";
 236   char cmd[BUFSIZE];
 237   // Define other variables
 238   char buf[BUFSIZE];            /* buffer used to store VPP metrics     */
 239   int temp[] = {0, 0, 0, 0};    /* temp array that contains VPP values  */
 240   FILE *fp;                     /* file descriptor to pipe cmd to shell */
 241   int i;
 242
 243   for(i = 0; i < 4; i++) {
 244     // Clear buffers
 245     memset(buf, 0, BUFSIZE);
 246     memset(cmd, 0, BUFSIZE);
 247     // Build shell command to read metrics from the vNIC
 248     strcat(cmd, cmd_prefix);
 249     strcat(cmd, vnic);
 250     strcat(cmd, cmd_mid);
 251     strcat(cmd, params[i]);
 252
 253     // Open a pipe and read VPP values
 254     if ((fp = popen(cmd, "r")) == NULL) {
 255         printf("Error opening pipe!\n");
 256         return;
 257     }
 258
 259     while (fgets(buf, BUFSIZE, fp) != NULL);
 260     temp[i] = atoi(buf);
 261
 262     if(pclose(fp))  {
 263         printf("Command not found or exited with error status\n");
 264         return;
 265     }
 266   }
 267
 268   // Store metrics read from the vNIC in the struct passed from the main function
 269   vpp_metrics->bytes_in = temp[0];
 270   vpp_metrics->bytes_out = temp[1];
 271   vpp_metrics->packets_in = temp[2];
 272   vpp_metrics->packets_out = temp[3];
 273 }