IPネットワーク自動化。 パート3-TCP異常の監視

 ====================================================================================================== | IO Statistics | | | | Duration: 5. 40977 secs | | Interval: 5 secs | | | | Col 1: (ip.addr==1.1.1.1) && tcp | | 2: COUNT(tcp.analysis.retransmission)(ip.addr==1.1.1.1) && tcp.analysis.retransmission | | 3: COUNT(tcp.analysis.duplicate_ack)(ip.addr==1.1.1.1) && tcp.analysis.duplicate_ack | | 4: COUNT(tcp.analysis.lost_segment)(ip.addr==1.1.1.1) && tcp.analysis.lost_segment | | 5: COUNT(tcp.analysis.fast_retransmission)(ip.addr==1.1.1.1) && | | tcp.analysis.fast_retransmission | | 6: COUNT(tcp.analysis.lost_segment)(ip.addr==1.1.1.1) && tcp.analysis.ack_lost_segment | |----------------------------------------------------------------------------------------------------| | |1 |2 |3 |4 |5 |6 | | | Date and time | Frames | Bytes | COUNT | COUNT | COUNT | COUNT | COUNT | | |-------------------------------------------------------------------------------| | | 2017-07-10 15:00:45 | 507 | 481496 | 1 | 0 | 2 | 0 | 0 | | | 2017-07-10 15:00:50 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | ====================================================================================================== 

 #!/usr/bin/env python # -*- coding: utf-8 -*- import datetime import re import os import subprocess import argparse import time import signal parser = argparse.ArgumentParser() parser.add_argument("-h_page", "--hostname_page", dest = "hostname_page") args = parser.parse_args() curent_time=str(datetime.datetime.now().strftime("%Y-%m-%d_%H:%M:%S_")) pid=os.getpid() ##########start Table parser############### def parser_tshark_output(open_time, parser_file): table_data = {'date':[],'1 frame':[],'2 frame':[],'retr':[],'dup_ack':[],'lost_seg':[],'fast_retr':[],'ack_lost_seg':[]} lines = open(parser_file, 'r').readlines() lookup = 'tcp.analysis.ack_lost_segment ' number = 0 for num in lines: if lookup in num: number+=lines.index(num) try: del (lines[-1]) except: pass L=open("/usr/TEST/TMP_FILES/test_tshark_temp_"+str(os.getpid())+".txt", 'w') L.writelines(lines) L.close() with open("/usr/TEST/TMP_FILES/test_tshark_temp_"+str(os.getpid())+".txt", 'r') as table: if number != 0: for _ in range(int(number+5)): next(table) #skip header for row in table: row=row.strip('\n').split('|') values = [r.strip() for r in row if r != ''] table_data['date'].append(values[0]) table_data['1 frame'].append(int(values[1])) table_data['2 frame'].append(int(values[2])) table_data['retr'].append(int(values[3])) table_data['dup_ack'].append(int(values[4])) table_data['lost_seg'].append(int(values[5])) table_data['fast_retr'].append(int(values[6])) table_data['ack_lost_seg'].append(int(values[7])) else: pass if number !=0: frames=sum(table_data['2 frame']) print ('start-frames_' + str.format("{0:.2f}", frames)+'_end-frames') tcp_errors=sum(table_data['retr'])+sum(table_data['dup_ack'])++sum(table_data['fast_retr'])+sum(table_data['ack_lost_seg']) print ('start-tcp_errors_' + str(tcp_errors)+'_end-tcp_errors') if open_time != 'open_error' and frames != 0: k=tcp_errors else: k= 'no data' else: k= 'no data' os.remove("/usr/TEST/TMP_FILES/test_tshark_temp_"+str(os.getpid())+".txt") return (k) ###########end table parser############### ###########start tshark part 1########### resault_temp=subprocess.Popen(['nslookup '+str(args.hostname_page)], bufsize=0, shell=True, stdout = subprocess.PIPE, stderr=subprocess.PIPE) data=resault_temp.communicate() ip_adr_temp=re.findall(r'(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', str(re.findall(r'Address: (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})', str(data)))) if ip_adr_temp != []: pass else: ip_adr_temp = ['1.1.1.1'] ip_adr='' for z in ip_adr_temp: if len(ip_adr_temp)-ip_adr_temp.index(z)==1: ip_adr+='ip.addr=='+str(z)+')' else: ip_adr+='ip.addr=='+str(z)+' or ' ftcp=open('/usr/TEST/TMP_FILES/1tshark_temp'+curent_time+str(pid)+'.txt', 'w') tcp=subprocess.Popen(['timeout 180 tshark -i bce0 -t ad -qz io,stat,5,"('+str(ip_adr)+' && tcp","COUNT(tcp.analysis.retransmission)('+str(ip_adr)+' && tcp.analysis.retransmission","COUNT(tcp.analysis.duplicate_ack)('\ +str(ip_adr)+' && tcp.analysis.duplicate_ack","COUNT(tcp.analysis.lost_segment)('+str(ip_adr)+' && tcp.analysis.lost_segment","COUNT(tcp.analysis.fast_retransmission)('+str(ip_adr)+\ ' && tcp.analysis.fast_retransmission","COUNT(tcp.analysis.lost_segment)('+str(ip_adr)+' && tcp.analysis.ack_lost_segment"']\ , bufsize=0, shell=True, stdout=(ftcp))#stdout = subprocess.PIPE, stderr=subprocess.PIPE) time.sleep(2) ############start wget ################ fweb=open('/usr/TEST/TMP_FILES/web_temp'+curent_time+str(pid)+'.txt', 'w') web=subprocess.call(["timeout 120 wget -E -H -p -Q300K --user-agent=Mozilla --no-cache --no-cookies --delete-after --timeout=15 --tries=2 "+args.hostname_page+" 2>&1 | grep '\([0-9.]\+ [KM]B/s\)'"], bufsize=0, shell=True, stdout=(fweb)) fweb.close() fweb=open('/usr/TEST/TMP_FILES/web_temp'+curent_time+str(pid)+'.txt', 'r') data=fweb.read() os.remove('/usr/TEST/TMP_FILES/web_temp'+curent_time+str(pid)+'.txt') speed_temp=re.findall(r's \((.*?)B/s', str(data))#[KM]B/s', str(data))) speed_temp_si=re.findall(r's \((.*?) [KM]B/s', str(data)) try: if re.findall(r'M', str(speed_temp))==[] and re.findall(r'K', str(speed_temp))==[]: speed_="{0:.3f}".format(float(speed_temp_si[0])*0.001*8) elif re.findall(r'M', str(speed_temp))!=[]: speed_="{0:.3f}".format(float(speed_temp_si[0])*1000*8) elif re.findall(r'K', str(speed_temp))!=[]: speed_="{0:.3f}".format(float(speed_temp_si[0])*1*8) except: speed_='no_data' ##############stop wget############## ##############start tshark part2####### os.kill(tcp.pid, signal.SIGINT) ftcp.close() time.sleep(0.3) tcp_error=parser_tshark_output('1', '/usr/TEST/TMP_FILES/1tshark_temp'+curent_time+str(pid)+'.txt') os.remove('/usr/TEST/TMP_FILES/1tshark_temp'+curent_time+str(pid)+'.txt') #########resault to DB########### print ('web_speed_test:'+str(speed_)+' tcp_error:'+str(tcp_error))