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, "measurement_vFirewall-Att-Linkdownerr");
  66   strcpy(eventId, "mvfs00000001");
  67
  68   char* fqdn = argv[1];
  69   int port = atoi(argv[2]);
  70   if(argc == 6)
  71   {
  72      fqdn2 = argv[3];
  73      port2 = atoi(argv[4]);
  74      vnic = argv[5];
  75   }
  76   else
  77      vnic = argv[3];
  78
  79   printf("\nVector Packet Processing (VPP) measurement collection\n");
  80   fflush(stdout);
  81
  82   if (!((argc == 4) || (argc == 6)))
  83   {
  84     fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <FQDN>|<IP address> <port> <interface> \n", argv[0]);
  85     fprintf(stderr, "OR\n");
  86     fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <interface>\n", argv[0]);
  87     exit(-1);
  88   }
  89
  90   /**************************************************************************/
  91   /* Initialize                                                             */
  92   /**************************************************************************/
  93   if(evel_initialize(fqdn,                         /* FQDN                  */
  94                      port,                         /* Port                  */
  95                      fqdn2,                        /* Backup FQDN           */
  96                      port2,                        /* Backup port           */
  97                      NULL,                         /* optional path         */
  98                      NULL,                         /* optional topic        */
  99                      100,                          /* Ring Buffer size      */
 100                      0,                            /* HTTPS?                */
 101                      NULL,                         /* cert file             */
 102                      NULL,                         /* key  file             */
 103                      NULL,                         /* ca   info             */
 104                      NULL,                         /* ca   file             */
 105                      0,                            /* verify peer           */
 106                      0,                            /* verify host           */
 107                      "sample1",                    /* Username              */
 108                      "sample1",                    /* Password              */
 109                      "sample1",                    /* Username2             */
 110                      "sample1",                    /* Password2             */
 111                      NULL,                         /* Source ip             */
 112                      NULL,                         /* Source ip2            */
 113                      EVEL_SOURCE_VIRTUAL_MACHINE,  /* Source type           */
 114                      "vFirewall",                  /* Role                  */
 115                      1))                           /* Verbosity             */
 116
 117   {
 118     fprintf(stderr, "\nFailed to initialize the EVEL library!!!\n");
 119     exit(-1);
 120   }
 121   else
 122   {
 123     printf("\nInitialization completed\n");
 124   }
 125
 126   gethostname(hostname, BUFSIZE);
 127   memset(last_vpp_metrics, 0, sizeof(vpp_metrics_struct));
 128   read_vpp_metrics(last_vpp_metrics, vnic);
 129   gettimeofday(&time_val, NULL);
 130   start_epoch = time_val.tv_sec * 1000000 + time_val.tv_usec;
 131   sleep(READ_INTERVAL);
 132
 133   /***************************************************************************/
 134   /* Collect metrics from the VNIC                                           */
 135   /***************************************************************************/
 136   while(1) {
 137     memset(curr_vpp_metrics, 0, sizeof(vpp_metrics_struct));
 138     read_vpp_metrics(curr_vpp_metrics, vnic);
 139
 140     if(curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in > 0) {
 141       bytes_in_this_round = curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in;
 142     }
 143     else {
 144       bytes_in_this_round = 0;
 145     }
 146     if(curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out > 0) {
 147       bytes_out_this_round = curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out;
 148     }
 149     else {
 150       bytes_out_this_round = 0;
 151     }
 152     if(curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in > 0) {
 153       packets_in_this_round = curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in;
 154     }
 155     else {
 156       packets_in_this_round = 0;
 157     }
 158     if(curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out > 0) {
 159       packets_out_this_round = curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out;
 160     }
 161     else {
 162       packets_out_this_round = 0;
 163     }
 164
 165     vpp_m = evel_new_measurement(READ_INTERVAL, eventName, eventId);
 166
 167     if(vpp_m != NULL) {
 168       printf("New measurement report created...\n");
 169       vnic_performance = (MEASUREMENT_VNIC_PERFORMANCE *)evel_measurement_new_vnic_performance(vnic, "true");
 170       evel_meas_vnic_performance_add(vpp_m, vnic_performance);
 171       evel_vnic_performance_rx_total_pkt_delta_set(vnic_performance, packets_in_this_round);
 172       evel_vnic_performance_tx_total_pkt_delta_set(vnic_performance, packets_out_this_round);
 173
 174       evel_vnic_performance_rx_octets_delta_set(vnic_performance, bytes_in_this_round);
 175       evel_vnic_performance_tx_octets_delta_set(vnic_performance, bytes_out_this_round);
 176
 177       /***************************************************************************/
 178       /* Set parameters in the MEASUREMENT header packet                         */
 179       /***************************************************************************/
 180       last_epoch = start_epoch + READ_INTERVAL * 1000000;
 181       vpp_m_header = (EVENT_HEADER *)vpp_m;
 182       vpp_m_header->start_epoch_microsec = start_epoch;
 183       vpp_m_header->last_epoch_microsec = last_epoch;
 184       evel_reporting_entity_id_set(vpp_m_header, "No UUID available");
 185 printf("1111\n");
 186       evel_reporting_entity_name_set(vpp_m_header, hostname);
 187 printf("1111\n");
 188      // evel_rc = evel_post_event(vpp_m_header);
 189       batch_header = evel_new_batch("batch_event_name", "bevent_id");
 190       evel_batch_add_event(batch_header, vpp_m_header);
 191       evel_rc = evel_post_event(batch_header);
 192
 193       if(evel_rc == EVEL_SUCCESS) {
 194         printf("Measurement report correctly sent to the collector!\n");
 195       }
 196       else {
 197         printf("Post failed %d (%s)\n", evel_rc, evel_error_string());
 198       }
 199     }
 200     else {
 201       printf("New measurement report failed (%s)\n", evel_error_string());
 202     }
 203
 204     last_vpp_metrics->bytes_in = curr_vpp_metrics->bytes_in;
 205     last_vpp_metrics->bytes_out = curr_vpp_metrics->bytes_out;
 206     last_vpp_metrics->packets_in = curr_vpp_metrics->packets_in;
 207     last_vpp_metrics->packets_out = curr_vpp_metrics->packets_out;
 208     gettimeofday(&time_val, NULL);
 209     start_epoch = time_val.tv_sec * 1000000 + time_val.tv_usec;
 210
 211     sleep(READ_INTERVAL);
 212   }
 213
 214   /***************************************************************************/
 215   /* Terminate                                                               */
 216   /***************************************************************************/
 217   sleep(1);
 218   free(last_vpp_metrics);
 219   free(curr_vpp_metrics);
 220   evel_terminate();
 221   printf("Terminated\n");
 222
 223   return 0;
 224 }
 225
 226 void read_vpp_metrics(vpp_metrics_struct *vpp_metrics, char *vnic) {
 227   // Define an array of char that contains the parameters of the unix 'cut' command
 228   char* params[] = {"-f3", "-f11", "-f4", "-f12"};
 229   // Define the unix command to execute in order to read metrics from the vNIC
 230   char* cmd_prefix = "sudo cat /proc/net/dev | grep \"";
 231   char* cmd_mid = "\" | tr -s \' \' | cut -d\' \' ";
 232   char cmd[BUFSIZE];
 233   // Define other variables
 234   char buf[BUFSIZE];            /* buffer used to store VPP metrics     */
 235   int temp[] = {0, 0, 0, 0};    /* temp array that contains VPP values  */
 236   FILE *fp;                     /* file descriptor to pipe cmd to shell */
 237   int i;
 238
 239   for(i = 0; i < 4; i++) {
 240     // Clear buffers
 241     memset(buf, 0, BUFSIZE);
 242     memset(cmd, 0, BUFSIZE);
 243     // Build shell command to read metrics from the vNIC
 244     strcat(cmd, cmd_prefix);
 245     strcat(cmd, vnic);
 246     strcat(cmd, cmd_mid);
 247     strcat(cmd, params[i]);
 248
 249     // Open a pipe and read VPP values
 250     if ((fp = popen(cmd, "r")) == NULL) {
 251         printf("Error opening pipe!\n");
 252         return;
 253     }
 254
 255     while (fgets(buf, BUFSIZE, fp) != NULL);
 256     temp[i] = atoi(buf);
 257
 258     if(pclose(fp))  {
 259         printf("Command not found or exited with error status\n");
 260         return;
 261     }
 262   }
 263
 264   // Store metrics read from the vNIC in the struct passed from the main function
 265   vpp_metrics->bytes_in = temp[0];
 266   vpp_metrics->bytes_out = temp[1];
 267   vpp_metrics->packets_in = temp[2];
 268   vpp_metrics->packets_out = temp[3];
 269 }