/*************************************************************************//**
*
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/time.h>
#include "evel.h"
#define BUFSIZE 128
#define READ_INTERVAL 10
typedef struct dummy_vpp_metrics_struct {
int bytes_in;
int bytes_out;
int packets_in;
int packets_out;
} vpp_metrics_struct;
void read_vpp_metrics(vpp_metrics_struct *, char *);
unsigned long long epoch_start = 0;
#ifdef DOCKER
int measure_traffic()
{
EVEL_ERR_CODES evel_rc = EVEL_SUCCESS;
FILE *fp;
int status;
char count[10];
time_t rawtime;
struct tm * timeinfo;
char period [21];
char cmd [100];
int concurrent_sessions = 0;
int configured_entities = 0;
double mean_request_latency = 0;
double measurement_interval = 1;
double memory_configured = 0;
double memory_used = 0;
int request_rate=0;
char secs [3];
int sec;
double loadavg;
printf("Checking app traffic\n");
time (&rawtime);
timeinfo = localtime (&rawtime);
strftime(period,21,"%d/%b/%Y:%H:%M:",timeinfo);
strftime(secs,3,"%S",timeinfo);
sec = atoi(secs);
if (sec == 0) sec = 59;
sprintf(secs, "%02d", sec);
strncat(period, secs, 21);
// ....x....1....x....2.
// 15/Oct/2016:17:51:19
strcpy(cmd, "sudo docker logs vHello | grep -c ");
strncat(cmd, period, 100);
fp = popen(cmd, "r");
if (fp == NULL) {
EVEL_ERROR("popen failed to execute command");
}
if (fgets(count, 10, fp) != NULL) {
request_rate = atoi(count);
printf("Reporting request rate for second: %s as %d\n", period, request_rate);
}
else {
EVEL_ERROR("New Measurement failed");
}
printf("Processed measurement\n");
status = pclose(fp);
if (status == -1) {
EVEL_ERROR("pclose returned an error");
}
return request_rate;
}
#endif
/**************************************************************************//**
* tap live cpu stats
*****************************************************************************/
void evel_get_cpu_stats(EVENT_MEASUREMENT * measurement)
{
FILE *fp;
char path[1024];
double usage=0.0;
double idle;
double intrpt;
double nice;
double softirq;
double steal;
double sys;
double user;
double wait;
MEASUREMENT_CPU_USE *cpu_use = NULL;
/* Open the command for reading. */
//fp = popen("/bin/ls /etc/", "r");
fp = popen("/usr/bin/top -bn 2 -d 0.01 | grep '^%Cpu' | tail -n 1 ", "r");
if (fp == NULL) {
printf("Failed to run command\n" );
exit(1);
}
/* Read the output a line at a time - output it. */
while (fgets(path, sizeof(path)-1, fp) != NULL) {
printf("%s", path+10);
sscanf(path+10," %lf us, %lf sy, %lf ni, %lf id, %lf wa, %lf hi, %lf si, %lf st",
&user,&sys,&nice,&idle,&wait,&intrpt,&softirq,&steal);
}
/* close */
pclose(fp);
cpu_use = evel_measurement_new_cpu_use_add(measurement, "cpu1", usage);
if( cpu_use != NULL ){
evel_measurement_cpu_use_idle_set(cpu_use,idle);
//evel_measurement_cpu_use_interrupt_set(cpu_use,intrpt);
//evel_measurement_cpu_use_nice_set(cpu_use,nice);
//evel_measurement_cpu_use_softirq_set(cpu_use,softirq);
//evel_measurement_cpu_use_steal_set(cpu_use,steal);
evel_measurement_cpu_use_system_set(cpu_use,sys);
evel_measurement_cpu_use_usageuser_set(cpu_use,user);
//evel_measurement_cpu_use_wait_set(cpu_use,wait);
//evel_measurement_cpu_use_add(measurement, "cpu2", usage,idle,intrpt,nice,softirq,steal,sys,user,wait);
}
}
int main(int argc, char** argv)
{
EVEL_ERR_CODES evel_rc = EVEL_SUCCESS;
EVENT_MEASUREMENT* vpp_m = NULL;
EVENT_HEADER* vpp_m_header = NULL;
int bytes_in_this_round;
int bytes_out_this_round;
int packets_in_this_round;
int packets_out_this_round;
vpp_metrics_struct* last_vpp_metrics = malloc(sizeof(vpp_metrics_struct));
vpp_metrics_struct* curr_vpp_metrics = malloc(sizeof(vpp_metrics_struct));
struct timeval time_val;
//time_t start_epoch;
//time_t last_epoch;
char hostname[BUFSIZE];
char* fqdn = argv[1];
int port = atoi(argv[2]);
char* vnic = argv[3];
MEASUREMENT_VNIC_PERFORMANCE * vnic_performance = NULL;
//struct timeval tv_start;
printf("\nVector Packet Processing (VPP) measurement collection\n");
fflush(stdout);
if (argc != 4)
{
fprintf(stderr, "Usage: %s <FQDN>|<IP address> <port> <interface>\n", argv[0]);
exit(-1);
}
srand(time(NULL));
/**************************************************************************/
/* Initialize */
/**************************************************************************/
if(evel_initialize(fqdn, /* FQDN */
port, /* Port */
NULL, /* optional path */
NULL, /* optional topic */
0, /* HTTPS? */
"", /* Username */
"", /* Password */
EVEL_SOURCE_VIRTUAL_MACHINE, /* Source type */
"vFirewall", /* Role */
1)) /* Verbosity */
{
fprintf(stderr, "\nFailed to initialize the EVEL library!!!\n");
exit(-1);
}
else
{
printf("\nInitialization completed\n");
}
gethostname(hostname, BUFSIZE);
memset(last_vpp_metrics, 0, sizeof(vpp_metrics_struct));
read_vpp_metrics(last_vpp_metrics, vnic);
gettimeofday(&time_val, NULL);
epoch_start = time_val.tv_sec * 1000000 + time_val.tv_usec;
sleep(READ_INTERVAL);
/***************************************************************************/
/* Collect metrics from the VNIC */
/***************************************************************************/
while(1) {
memset(curr_vpp_metrics, 0, sizeof(vpp_metrics_struct));
read_vpp_metrics(curr_vpp_metrics, vnic);
if(curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in > 0) {
bytes_in_this_round = curr_vpp_metrics->bytes_in - last_vpp_metrics->bytes_in;
}
else {
bytes_in_this_round = 0;
}
if(curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out > 0) {
bytes_out_this_round = curr_vpp_metrics->bytes_out - last_vpp_metrics->bytes_out;
}
else {
bytes_out_this_round = 0;
}
if(curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in > 0) {
packets_in_this_round = curr_vpp_metrics->packets_in - last_vpp_metrics->packets_in;
}
else {
packets_in_this_round = 0;
}
if(curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out > 0) {
packets_out_this_round = curr_vpp_metrics->packets_out - last_vpp_metrics->packets_out;
}
else {
packets_out_this_round = 0;
}
vpp_m = evel_new_measurement(READ_INTERVAL,"Measurement_vVNF","TrafficStats_1.2.3.4");
vnic_performance = (MEASUREMENT_VNIC_PERFORMANCE *)evel_measurement_new_vnic_performance("eth0", "true");
evel_meas_vnic_performance_add(vpp_m, vnic_performance);
if(vpp_m != NULL) {
printf("New measurement report created...\n");
evel_measurement_type_set(vpp_m, "HTTP request rate");
evel_measurement_request_rate_set(vpp_m, rand()%10000);
evel_vnic_performance_rx_total_pkt_delta_set(vnic_performance, packets_in_this_round);
evel_vnic_performance_tx_total_pkt_delta_set(vnic_performance, packets_out_this_round);
evel_vnic_performance_rx_octets_delta_set(vnic_performance, bytes_in_this_round);
evel_vnic_performance_tx_octets_delta_set(vnic_performance, bytes_out_this_round);
evel_get_cpu_stats(vpp_m);
/***************************************************************************/
/* Set parameters in the MEASUREMENT header packet */
/***************************************************************************/
struct timeval tv_now;
gettimeofday(&tv_now, NULL);
unsigned long long epoch_now = tv_now.tv_usec + 1000000 * tv_now.tv_sec;
//last_epoch = start_epoch + READ_INTERVAL * 1000000;
vpp_m_header = (EVENT_HEADER *)vpp_m;
//vpp_m_header->start_epoch_microsec = start_epoch;
//vpp_m_header->last_epoch_microsec = last_epoch;
evel_start_epoch_set(&vpp_m->header, epoch_start);
evel_last_epoch_set(&vpp_m->header, epoch_now);
epoch_start = epoch_now;
evel_nfcnamingcode_set(&vpp_m->header, "vVNF");
evel_nfnamingcode_set(&vpp_m->header, "vVNF");
//strcpy(vpp_m_header->reporting_entity_id.value, "No UUID available");
//strcpy(vpp_m_header->reporting_entity_name, hostname);
evel_reporting_entity_name_set(&vpp_m->header, "fwll");
evel_reporting_entity_id_set(&vpp_m->header, "No UUID available");
evel_rc = evel_post_event(vpp_m_header);
if(evel_rc == EVEL_SUCCESS) {
printf("Measurement report correctly sent to the collector!\n");
}
else {
printf("Post failed %d (%s)\n", evel_rc, evel_error_string());
}
}
else {
printf("New measurement report failed (%s)\n", evel_error_string());
}
last_vpp_metrics->bytes_in = curr_vpp_metrics->bytes_in;
last_vpp_metrics->bytes_out = curr_vpp_metrics->bytes_out;
last_vpp_metrics->packets_in = curr_vpp_metrics->packets_in;
last_vpp_metrics->packets_out = curr_vpp_metrics->packets_out;
//gettimeofday(&time_val, NULL);
//start_epoch = time_val.tv_sec * 1000000 + time_val.tv_usec;
sleep(READ_INTERVAL);
}
/***************************************************************************/
/* Terminate */
/***************************************************************************/
sleep(1);
free(last_vpp_metrics);
free(curr_vpp_metrics);
evel_terminate();
printf("Terminated\n");
return 0;
}
void read_vpp_metrics(vpp_metrics_struct *vpp_metrics, char *vnic) {
// Define an array of char that contains the parameters of the unix 'cut' command
char* params[] = {"-f3", "-f11", "-f4", "-f12"};
// Define the unix command to execute in order to read metrics from the vNIC
char* cmd_prefix = "sudo cat /proc/net/dev | grep \"";
char* cmd_mid = "\" | tr -s \' \' | cut -d\' \' ";
char cmd[BUFSIZE];
// Define other variables
char buf[BUFSIZE]; /* buffer used to store VPP metrics */
int temp[] = {0, 0, 0, 0}; /* temp array that contains VPP values */
FILE *fp; /* file descriptor to pipe cmd to shell */
int i;
for(i = 0; i < 4; i++) {
// Clear buffers
memset(buf, 0, BUFSIZE);
memset(cmd, 0, BUFSIZE);
// Build shell command to read metrics from the vNIC
strcat(cmd, cmd_prefix);
strcat(cmd, vnic);
strcat(cmd, cmd_mid);
strcat(cmd, params[i]);
// Open a pipe and read VPP values
if ((fp = popen(cmd, "r")) == NULL) {
printf("Error opening pipe!\n");
return;
}
while (fgets(buf, BUFSIZE, fp) != NULL);
temp[i] = atoi(buf);
if(pclose(fp)) {
printf("Command not found or exited with error status\n");
return;
}
}
// Store metrics read from the vNIC in the struct passed from the main function
vpp_metrics->bytes_in = temp[0];
vpp_metrics->bytes_out = temp[1];
vpp_metrics->packets_in = temp[2];
vpp_metrics->packets_out = temp[3];
}