vnfs/VESreporting_vLB5.0/vpp_measurement_reporter.c

   1
   2 /*************************************************************************//**
   3  *
   4  * Copyright © 2017 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 #include <math.h>
  25
  26 #include "evel.h"
  27
  28 #define BUFSIZE 128
  29 #define READ_INTERVAL 10
  30
  31 typedef struct dummy_vpp_metrics_struct {
  32   int bytes_in;
  33   int bytes_out;
  34   int packets_in;
  35   int packets_out;
  36 } vpp_metrics_struct;
  37
  38 void read_vpp_metrics(vpp_metrics_struct *, char *);
  39
  40 unsigned long long epoch_start = 0;
  41
  42
  43 #ifdef DOCKER
  44 int measure_traffic()
  45 {
  46
  47   EVEL_ERR_CODES evel_rc = EVEL_SUCCESS;
  48   FILE *fp;
  49   int status;
  50   char count[10];
  51   time_t rawtime;
  52   struct tm * timeinfo;
  53   char period [21];
  54   char cmd [100];
  55   int concurrent_sessions = 0;
  56   int configured_entities = 0;
  57   double mean_request_latency = 0;
  58   double measurement_interval = 1;
  59   double memory_configured = 0;
  60   double memory_used = 0;
  61   int request_rate=0;
  62   char secs [3];
  63   int sec;
  64   double loadavg;
  65
  66   printf("Checking app traffic\n");
  67   time (&rawtime);
  68   timeinfo = localtime (&rawtime);
  69   strftime(period,21,"%d/%b/%Y:%H:%M:",timeinfo);
  70   strftime(secs,3,"%S",timeinfo);
  71   sec = atoi(secs);
  72   if (sec == 0) sec = 59;
  73   sprintf(secs, "%02d", sec);
  74   strncat(period, secs, 21);
  75   // ....x....1....x....2.
  76   // 15/Oct/2016:17:51:19
  77   strcpy(cmd, "sudo docker logs vHello | grep -c ");
  78   strncat(cmd, period, 100);
  79
  80   fp = popen(cmd, "r");
  81   if (fp == NULL) {
  82     EVEL_ERROR("popen failed to execute command");
  83   }
  84
  85   if (fgets(count, 10, fp) != NULL) {
  86     request_rate = atoi(count);
  87     printf("Reporting request rate for second: %s as %d\n", period, request_rate);
  88
  89     }
  90     else {
  91       EVEL_ERROR("New Measurement failed");
  92     }
  93     printf("Processed measurement\n");
  94
  95   status = pclose(fp);
  96   if (status == -1) {
  97     EVEL_ERROR("pclose returned an error");
  98   }
  99   return request_rate;
 100 }
 101
 102 #endif
 103
 104
 105 int main(int argc, char** argv)
 106 {
 107   EVEL_ERR_CODES evel_rc = EVEL_SUCCESS;
 108   EVENT_MEASUREMENT* vpp_m = NULL;
 109   EVENT_HEADER* vpp_m_header = NULL;
 110   int bytes_in_this_round;
 111   int bytes_out_this_round;
 112   int packets_in_this_round;
 113   int packets_out_this_round;
 114   vpp_metrics_struct* last_vpp_metrics = malloc(sizeof(vpp_metrics_struct));
 115   vpp_metrics_struct* curr_vpp_metrics = malloc(sizeof(vpp_metrics_struct));
 116   struct timeval time_val;
 117   //time_t start_epoch;
 118   //time_t last_epoch;
 119   char hostname[BUFSIZE];
 120   char* fqdn = argv[1];
 121   int port = atoi(argv[2]);
 122   char* vnic = argv[3];
 123   char* fqdn2 = NULL;
 124   int port2 = 0;
 125   char* caFile = "/opt/config/onap-ca.crt";
 126   char* userName = "sample1";
 127   char* passWord = "sample1";
 128
 129
 130   if(argc == 6)
 131   {
 132      fqdn2 = argv[3];
 133      port2 = atoi(argv[4]);
 134      vnic = argv[5];
 135   }
 136   else
 137      vnic = argv[3];
 138
 139   MEASUREMENT_VNIC_PERFORMANCE * vnic_performance = NULL;
 140
 141   printf("\nVector Packet Processing (VPP) measurement collection\n");
 142   fflush(stdout);
 143
 144   if (!((argc == 6) || (argc == 4)))
 145   {
 146     fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <FQDN>|<IP address> <port> <interface> \n", argv[0]);
 147     fprintf(stderr, "OR\n");
 148     fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <interface> \n", argv[0]);
 149     exit(-1);
 150   }
 151
 152   srand(time(NULL));
 153
 154   /**************************************************************************/
 155   /* Initialize                                                             */
 156   /**************************************************************************/
 157   if(evel_initialize(fqdn,                         /* FQDN                  */
 158                        port,                         /* Port                  */
 159                        fqdn2,                        /* Backup FQDN           */
 160                        port2,                        /* Backup port           */
 161                        NULL,                         /* optional path         */
 162                        NULL,                         /* optional topic        */
 163                        100,                          /* Ring Buffer size      */
 164                        1,                            /* HTTPS?                */
 165                        NULL,                         /* cert file             */
 166                        NULL,                         /* key  file             */
 167                        caFile,                         /* ca   info             */
 168                        NULL,                         /* ca   file             */
 169                        0,                            /* verify peer           */
 170                        0,                            /* verify host           */
 171                        userName,                    /* Username              */
 172                        passWord,                    /* Password              */
 173                        "sample1",                    /* Username2             */
 174                        "sample1",                    /* Password2             */
 175                        NULL,                         /* Source ip             */
 176                        NULL,                         /* Backup Source IP      */
 177                        EVEL_SOURCE_VIRTUAL_MACHINE,  /* Source type           */
 178                        "vLoadBalancer",              /* Role                  */
 179                        1))                           /* Verbosity             */
 180   {
 181     fprintf(stderr, "\nFailed to initialize the EVEL library!!!\n");
 182     exit(-1);
 183   }
 184   else
 185   {
 186     printf("\nInitialization completed\n");
 187   }
 188
 189   gethostname(hostname, BUFSIZE);
 190   memset(last_vpp_metrics, 0, sizeof(vpp_metrics_struct));
 191   read_vpp_metrics(last_vpp_metrics, vnic);
 192   gettimeofday(&time_val, NULL);
 193   epoch_start = time_val.tv_sec * 1000000 + time_val.tv_usec;
 194   sleep(READ_INTERVAL);
 195
 196   /***************************************************************************/
 197   /* Collect metrics from the VNIC                                           */
 198   /***************************************************************************/
 199   while(1) {
 200     // Read the number of vDNSs currently active
 201     int active_dns = 0;
 202     FILE* fd = fopen("active_dns.txt", "r");
 203     while(!feof(fd)) {
 204       if(fscanf(fd, "%d", &active_dns) != 1) /* Avoid infinite loops if the file doesn't contain exactly one number */
 205         break;
 206     }
 207
 208     if(fclose(fd))  {
 209       printf("Error when closing file\n");
 210       return 1;
 211     }
 212
 213     memset(curr_vpp_metrics, 0, sizeof(vpp_metrics_struct));
 214     read_vpp_metrics(curr_vpp_metrics, vnic);
 215
 216     if(active_dns > 0 && (curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in > 0)) {
 217       bytes_in_this_round = (int) round((curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in) / active_dns);
 218     }
 219     else {
 220       bytes_in_this_round = 0;
 221     }
 222     if(active_dns > 0 && (curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out > 0)) {
 223       bytes_out_this_round = (int) round((curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out) / active_dns);
 224     }
 225     else {
 226       bytes_out_this_round = 0;
 227     }
 228     if(active_dns > 0 && (curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in > 0)) {
 229       packets_in_this_round = (int) round((curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in) / active_dns);
 230     }
 231     else {
 232       packets_in_this_round = 0;
 233     }
 234     if(active_dns > 0 && (curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out > 0)) {
 235       packets_out_this_round = (int) round((curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out) / active_dns);
 236     }
 237     else {
 238       packets_out_this_round = 0;
 239     }
 240
 241     vpp_m = evel_new_measurement(READ_INTERVAL,"vLoadBalancer","TrafficStats_1.2.3.4");
 242     vnic_performance = (MEASUREMENT_VNIC_PERFORMANCE *)evel_measurement_new_vnic_performance(vnic, "true");
 243     evel_meas_vnic_performance_add(vpp_m, vnic_performance);
 244
 245     if(vpp_m != NULL) {
 246       printf("New measurement report created...\n");
 247
 248       evel_measurement_type_set(vpp_m, "HTTP request rate");
 249       evel_measurement_request_rate_set(vpp_m, rand()%10000);
 250
 251       evel_vnic_performance_rx_total_pkt_delta_set(vnic_performance, packets_in_this_round);
 252       evel_vnic_performance_tx_total_pkt_delta_set(vnic_performance, packets_out_this_round);
 253
 254       evel_vnic_performance_rx_octets_delta_set(vnic_performance, bytes_in_this_round);
 255       evel_vnic_performance_tx_octets_delta_set(vnic_performance, bytes_out_this_round);
 256
 257       /***************************************************************************/
 258       /* Set parameters in the MEASUREMENT header packet                         */
 259       /***************************************************************************/
 260       struct timeval tv_now;
 261       gettimeofday(&tv_now, NULL);
 262       unsigned long long epoch_now = tv_now.tv_usec + 1000000 * tv_now.tv_sec;
 263
 264       //last_epoch = start_epoch + READ_INTERVAL * 1000000;
 265       vpp_m_header = (EVENT_HEADER *)vpp_m;
 266       //vpp_m_header->start_epoch_microsec = start_epoch;
 267       //vpp_m_header->last_epoch_microsec = last_epoch;
 268       evel_start_epoch_set(&vpp_m->header, epoch_start);
 269       evel_last_epoch_set(&vpp_m->header, epoch_now);
 270       epoch_start = epoch_now;
 271
 272       evel_nfcnamingcode_set(&vpp_m->header, "vVNF");
 273       evel_nfnamingcode_set(&vpp_m->header, "vVNF");
 274       //strcpy(vpp_m_header->reporting_entity_id.value, "No UUID available");
 275       //strcpy(vpp_m_header->reporting_entity_name, hostname);
 276       evel_reporting_entity_name_set(&vpp_m->header, "lbll");
 277       evel_reporting_entity_id_set(&vpp_m->header, "No UUID available");
 278       evel_rc = evel_post_event(vpp_m_header);
 279
 280       if(evel_rc == EVEL_SUCCESS) {
 281         printf("Measurement report correctly sent to the collector!\n");
 282       }
 283       else {
 284         printf("Post failed %d (%s)\n", evel_rc, evel_error_string());
 285       }
 286     }
 287     else {
 288       printf("New measurement report failed (%s)\n", evel_error_string());
 289     }
 290
 291     last_vpp_metrics->bytes_in = curr_vpp_metrics->bytes_in;
 292     last_vpp_metrics->bytes_out = curr_vpp_metrics->bytes_out;
 293     last_vpp_metrics->packets_in = curr_vpp_metrics->packets_in;
 294     last_vpp_metrics->packets_out = curr_vpp_metrics->packets_out;
 295     //gettimeofday(&time_val, NULL);
 296     //start_epoch = time_val.tv_sec * 1000000 + time_val.tv_usec;
 297
 298     sleep(READ_INTERVAL);
 299   }
 300
 301   /***************************************************************************/
 302   /* Terminate                                                               */
 303   /***************************************************************************/
 304   sleep(1);
 305   evel_free_measurement(vpp_m);
 306   free(last_vpp_metrics);
 307   free(curr_vpp_metrics);
 308   evel_terminate();
 309   printf("Terminated\n");
 310
 311   return 0;
 312 }
 313
 314 void read_vpp_metrics(vpp_metrics_struct *vpp_metrics, char *vnic) {
 315   // Define an array of char that contains the parameters of the unix 'cut' command
 316   char* params[] = {"-f3", "-f11", "-f4", "-f12"};
 317   // Define the unix command to execute in order to read metrics from the vNIC
 318   char* cmd_prefix = "sudo cat /proc/net/dev | grep \"";
 319   char* cmd_mid = "\" | tr -s \' \' | cut -d\' \' ";
 320   char cmd[BUFSIZE];
 321   // Define other variables
 322   char buf[BUFSIZE];            /* buffer used to store VPP metrics     */
 323   int temp[] = {0, 0, 0, 0};    /* temp array that contains VPP values  */
 324   FILE *fp;                     /* file descriptor to pipe cmd to shell */
 325   int i;
 326
 327   for(i = 0; i < 4; i++) {
 328     // Clear buffers
 329     memset(buf, 0, BUFSIZE);
 330     memset(cmd, 0, BUFSIZE);
 331     // Build shell command to read metrics from the vNIC
 332     strcat(cmd, cmd_prefix);
 333     strcat(cmd, vnic);
 334     strcat(cmd, cmd_mid);
 335     strcat(cmd, params[i]);
 336
 337     // Open a pipe and read VPP values
 338     if ((fp = popen(cmd, "r")) == NULL) {
 339       printf("Error opening pipe!\n");
 340       return;
 341     }
 342
 343     while (fgets(buf, BUFSIZE, fp) != NULL);
 344     temp[i] = atoi(buf);
 345
 346     if(pclose(fp))  {
 347       printf("Command not found or exited with error status\n");
 348       return;
 349     }
 350   }
 351
 352   // Store metrics read from the vNIC in the struct passed from the main function
 353   vpp_metrics->bytes_in = temp[0];
 354   vpp_metrics->bytes_out = temp[1];
 355   vpp_metrics->packets_in = temp[2];
 356   vpp_metrics->packets_out = temp[3];
 357 }