| #!/usr/bin/env python |
| ''' |
| Created on 26-Oct-2012 |
| |
| @author: Anil Kumar (anilkumar.s@paxterrasolutions.com) |
| |
| |
| TestON is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation, either version 2 of the License, or |
| (at your option) any later version. |
| |
| TestON is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with TestON. If not, see <http://www.gnu.org/licenses/>. |
| |
| |
| MininetCliDriver is the basic driver which will handle the Mininet functions |
| ''' |
| import traceback |
| import pexpect |
| import struct |
| import fcntl |
| import os |
| import signal |
| import re |
| import sys |
| import core.teston |
| sys.path.append("../") |
| from drivers.common.cli.emulatordriver import Emulator |
| from drivers.common.clidriver import CLI |
| |
| class MininetCliDriver(Emulator): |
| ''' |
| MininetCliDriver is the basic driver which will handle the Mininet functions |
| ''' |
| def __init__(self): |
| super(Emulator, self).__init__() |
| self.handle = self |
| self.wrapped = sys.modules[__name__] |
| self.flag = 0 |
| |
| def connect(self, **connectargs): |
| ''' |
| Here the main is the TestON instance after creating all the log handles. |
| ''' |
| for key in connectargs: |
| vars(self)[key] = connectargs[key] |
| |
| self.name = self.options['name'] |
| self.handle = super(MininetCliDriver, self).connect(user_name = self.user_name, ip_address = self.ip_address,port = None, pwd = self.pwd) |
| |
| self.ssh_handle = self.handle |
| |
| if self.handle : |
| main.log.info(self.name+": Clearing any residual state or processes") |
| self.handle.sendline("sudo mn -c") |
| i=self.handle.expect(['password\sfor\s','Cleanup\scomplete',pexpect.EOF,pexpect.TIMEOUT],120) |
| if i==0: |
| main.log.info(self.name+": Sending sudo password") |
| self.handle.sendline(self.pwd) |
| i=self.handle.expect(['%s:'%(self.user),'\$',pexpect.EOF,pexpect.TIMEOUT],120) |
| if i==1: |
| main.log.info(self.name+": Clean") |
| elif i==2: |
| main.log.error(self.name+": Connection terminated") |
| elif i==3: #timeout |
| main.log.error(self.name+": Something while cleaning MN took too long... " ) |
| |
| main.log.info(self.name+": building fresh mininet") |
| #### for reactive/PARP enabled tests |
| cmdString = "sudo mn " + self.options['arg1'] + " " + self.options['arg2'] + " --mac --controller " + self.options['controller'] + " " + self.options['arg3'] |
| #### for proactive flow with static ARP entries |
| #cmdString = "sudo mn " + self.options['arg1'] + " " + self.options['arg2'] + " --mac --arp --controller " + self.options['controller'] + " " + self.options['arg3'] |
| self.handle.sendline(cmdString) |
| self.handle.expect(["sudo mn",pexpect.EOF,pexpect.TIMEOUT]) |
| while 1: |
| i=self.handle.expect(['mininet>','\*\*\*','Exception',pexpect.EOF,pexpect.TIMEOUT],300) |
| if i==0: |
| main.log.info(self.name+": mininet built") |
| return main.TRUE |
| if i==1: |
| self.handle.expect(["\n",pexpect.EOF,pexpect.TIMEOUT]) |
| main.log.info(self.handle.before) |
| elif i==2: |
| main.log.error(self.name+": Launching mininet failed...") |
| return main.FALSE |
| elif i==3: |
| main.log.error(self.name+": Connection timeout") |
| return main.FALSE |
| elif i==4: #timeout |
| main.log.error(self.name+": Something took too long... " ) |
| return main.FALSE |
| #if utilities.assert_matches(expect=patterns,actual=resultCommand,onpass="Network is being launched",onfail="Network launching is being failed "): |
| return main.TRUE |
| else:#if no handle |
| main.log.error(self.name+": Connection failed to the host "+self.user_name+"@"+self.ip_address) |
| main.log.error(self.name+": Failed to connect to the Mininet") |
| return main.FALSE |
| |
| def pingall(self): |
| ''' |
| Verifies the reachability of the hosts using pingall command. |
| ''' |
| if self.handle : |
| main.log.info(self.name+": Checking reachabilty to the hosts using pingall") |
| try: |
| response = self.execute(cmd="pingall",prompt="mininet>",timeout=120) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| pattern = 'Results\:\s0\%\sdropped\s' |
| #FIXME:Pending Mininet Pull Request #408 |
| #pattern = 'Results\:\s0\.00\%\sdropped\s' |
| print response |
| #if utilities.assert_matches(expect=pattern,actual=response,onpass="All hosts are reaching",onfail="Unable to reach all the hosts"): |
| if re.search(pattern,response): |
| main.log.info(self.name+": All hosts are reachable") |
| return main.TRUE |
| else: |
| main.log.error(self.name+": Unable to reach all the hosts") |
| return main.FALSE |
| else : |
| main.log.error(self.name+": Connection failed to the host") |
| return main.FALSE |
| |
| def fpingHost(self,**pingParams): |
| ''' |
| Uses the fping package for faster pinging... |
| *requires fping to be installed on machine running mininet |
| ''' |
| args = utilities.parse_args(["SRC","TARGET"],**pingParams) |
| command = args["SRC"] + " fping -i 100 -t 20 -C 1 -q "+args["TARGET"] |
| self.handle.sendline(command) |
| self.handle.expect([args["TARGET"],pexpect.EOF,pexpect.TIMEOUT]) |
| self.handle.expect(["mininet",pexpect.EOF,pexpect.TIMEOUT]) |
| response = self.handle.before |
| if re.search(":\s-" ,response): |
| main.log.info(self.name+": Ping fail") |
| return main.FALSE |
| elif re.search(":\s\d{1,2}\.\d\d", response): |
| main.log.info(self.name+": Ping good!") |
| return main.TRUE |
| main.log.info(self.name+": Install fping on mininet machine... ") |
| main.log.info(self.name+": \n---\n"+response) |
| return main.FALSE |
| |
| def pingHost(self,**pingParams): |
| ''' |
| Ping from one mininet host to another |
| Currently the only supported Params: SRC and TARGET |
| ''' |
| args = utilities.parse_args(["SRC","TARGET"],**pingParams) |
| #command = args["SRC"] + " ping -" + args["CONTROLLER"] + " " +args ["TARGET"] |
| command = args["SRC"] + " ping "+args ["TARGET"]+" -c 1 -i 1 -W 8" |
| try: |
| main.log.warn("Sending: " + command) |
| #response = self.execute(cmd=command,prompt="mininet",timeout=10 ) |
| self.handle.sendline(command) |
| i = self.handle.expect([command,pexpect.TIMEOUT]) |
| if i == 1: |
| main.log.error(self.name + ": timeout when waiting for response from mininet") |
| main.log.error("response: " + str(self.handle.before)) |
| i = self.handle.expect(["mininet>",pexpect.TIMEOUT]) |
| if i == 1: |
| main.log.error(self.name + ": timeout when waiting for response from mininet") |
| main.log.error("response: " + str(self.handle.before)) |
| response = self.handle.before |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| main.log.info(self.name+": Ping Response: "+ response ) |
| #if utilities.assert_matches(expect=',\s0\%\spacket\sloss',actual=response,onpass="No Packet loss",onfail="Host is not reachable"): |
| if re.search(',\s0\%\spacket\sloss',response): |
| main.log.info(self.name+": no packets lost, host is reachable") |
| main.last_result = main.TRUE |
| return main.TRUE |
| else : |
| main.log.error(self.name+": PACKET LOST, HOST IS NOT REACHABLE") |
| main.last_result = main.FALSE |
| return main.FALSE |
| |
| def checkIP(self,host): |
| ''' |
| Verifies the host's ip configured or not. |
| ''' |
| if self.handle : |
| try: |
| response = self.execute(cmd=host+" ifconfig",prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| |
| pattern = "inet\s(addr|Mask):([0-1]{1}[0-9]{1,2}|2[0-4][0-9]|25[0-5]|[0-9]{1,2}).([0-1]{1}[0-9]{1,2}|2[0-4][0-9]|25[0-5]|[0-9]{1,2}).([0-1]{1}[0-9]{1,2}|2[0-4][0-9]|25[0-5]|[0-9]{1,2}).([0-1]{1}[0-9]{1,2}|2[0-4][0-9]|25[0-5]|[0-9]{1,2})" |
| #pattern = "inet addr:10.0.0.6" |
| #if utilities.assert_matches(expect=pattern,actual=response,onpass="Host Ip configured properly",onfail="Host IP not found") : |
| if re.search(pattern,response): |
| main.log.info(self.name+": Host Ip configured properly") |
| return main.TRUE |
| else: |
| main.log.error(self.name+": Host IP not found") |
| return main.FALSE |
| else : |
| main.log.error(self.name+": Connection failed to the host") |
| |
| def verifySSH(self,**connectargs): |
| try: |
| response = self.execute(cmd="h1 /usr/sbin/sshd -D&",prompt="mininet>",timeout=10) |
| response = self.execute(cmd="h4 /usr/sbin/sshd -D&",prompt="mininet>",timeout=10) |
| for key in connectargs: |
| vars(self)[key] = connectargs[key] |
| response = self.execute(cmd="xterm h1 h4 ",prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| import time |
| time.sleep(20) |
| if self.flag == 0: |
| self.flag = 1 |
| return main.FALSE |
| else : |
| return main.TRUE |
| |
| def getMacAddress(self,host): |
| ''' |
| Verifies the host's ip configured or not. |
| ''' |
| if self.handle : |
| try: |
| response = self.execute(cmd=host+" ifconfig",prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| |
| pattern = r'HWaddr\s([0-9A-F]{2}[:-]){5}([0-9A-F]{2})' |
| mac_address_search = re.search(pattern, response, re.I) |
| mac_address = mac_address_search.group().split(" ")[1] |
| main.log.info(self.name+": Mac-Address of Host "+ host + " is " + mac_address) |
| return mac_address |
| else : |
| main.log.error(self.name+": Connection failed to the host") |
| |
| def getInterfaceMACAddress(self,host, interface): |
| ''' |
| Return the IP address of the interface on the given host |
| ''' |
| if self.handle : |
| try: |
| response = self.execute(cmd=host+" ifconfig " + interface, |
| prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| |
| pattern = r'HWaddr\s([0-9A-F]{2}[:-]){5}([0-9A-F]{2})' |
| mac_address_search = re.search(pattern, response, re.I) |
| if mac_address_search is None: |
| main.log.info("No mac address found in %s" % response) |
| return main.FALSE |
| mac_address = mac_address_search.group().split(" ")[1] |
| main.log.info("Mac-Address of "+ host + ":"+ interface + " is " + mac_address) |
| return mac_address |
| else: |
| main.log.error("Connection failed to the host") |
| |
| def getIPAddress(self,host): |
| ''' |
| Verifies the host's ip configured or not. |
| ''' |
| if self.handle : |
| try: |
| response = self.execute(cmd=host+" ifconfig",prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| |
| pattern = "inet\saddr:(\d+\.\d+\.\d+\.\d+)" |
| ip_address_search = re.search(pattern, response) |
| main.log.info(self.name+": IP-Address of Host "+host +" is "+ip_address_search.group(1)) |
| return ip_address_search.group(1) |
| else : |
| main.log.error(self.name+": Connection failed to the host") |
| |
| def getSwitchDPID(self,switch): |
| ''' |
| return the datapath ID of the switch |
| ''' |
| if self.handle : |
| cmd = "py %s.dpid" % switch |
| try: |
| response = self.execute(cmd=cmd,prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| pattern = r'^(?P<dpid>\d)+' |
| result = re.search(pattern, response, re.MULTILINE) |
| if result is None: |
| main.log.info("Couldn't find DPID for switch '', found: %s" % (switch, response)) |
| return main.FALSE |
| return str(result.group(0)) |
| else: |
| main.log.error("Connection failed to the host") |
| |
| def getDPID(self, switch): |
| if self.handle: |
| self.handle.sendline("") |
| self.expect("mininet>") |
| cmd = "py %s.dpid" %switch |
| try: |
| response = self.execute(cmd=cmd,prompt="mininet>",timeout=10) |
| self.handle.expect("mininet>") |
| response = self.handle.before |
| return response |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| |
| |
| def getInterfaces(self, node): |
| ''' |
| return information dict about interfaces connected to the node |
| ''' |
| if self.handle : |
| cmd = 'py "\\n".join(["name=%s,mac=%s,ip=%s,isUp=%s" % (i.name, i.MAC(), i.IP(), i.isUp())' |
| cmd += ' for i in %s.intfs.values()])' % node |
| try: |
| response = self.execute(cmd=cmd,prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| else: |
| main.log.error("Connection failed to the node") |
| |
| def dump(self): |
| main.log.info(self.name+": Dump node info") |
| try: |
| response = self.execute(cmd = 'dump',prompt = 'mininet>',timeout = 10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| |
| def intfs(self): |
| main.log.info(self.name+": List interfaces") |
| try: |
| response = self.execute(cmd = 'intfs',prompt = 'mininet>',timeout = 10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| |
| def net(self): |
| main.log.info(self.name+": List network connections") |
| try: |
| response = self.execute(cmd = 'net',prompt = 'mininet>',timeout = 10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| |
| def iperf(self): |
| main.log.info(self.name+": Simple iperf TCP test between two (optionally specified) hosts") |
| try: |
| response = self.execute(cmd = 'iperf',prompt = 'mininet>',timeout = 10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| |
| def iperfudp(self): |
| main.log.info(self.name+": Simple iperf TCP test between two (optionally specified) hosts") |
| try: |
| response = self.execute(cmd = 'iperfudp',prompt = 'mininet>',timeout = 10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| |
| def nodes(self): |
| main.log.info(self.name+": List all nodes.") |
| try: |
| response = self.execute(cmd = 'nodes',prompt = 'mininet>',timeout = 10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return response |
| |
| def pingpair(self): |
| main.log.info(self.name+": Ping between first two hosts") |
| try: |
| response = self.execute(cmd = 'pingpair',prompt = 'mininet>',timeout = 20) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| |
| #if utilities.assert_matches(expect='0% packet loss',actual=response,onpass="No Packet loss",onfail="Hosts not reachable"): |
| if re.search(',\s0\%\spacket\sloss',response): |
| main.log.info(self.name+": Ping between two hosts SUCCESSFUL") |
| main.last_result = main.TRUE |
| return main.TRUE |
| else : |
| main.log.error(self.name+": PACKET LOST, HOSTS NOT REACHABLE") |
| main.last_result = main.FALSE |
| return main.FALSE |
| |
| def link(self,**linkargs): |
| ''' |
| Bring link(s) between two nodes up or down |
| ''' |
| main.log.info('Bring link(s) between two nodes up or down') |
| args = utilities.parse_args(["END1","END2","OPTION"],**linkargs) |
| end1 = args["END1"] if args["END1"] != None else "" |
| end2 = args["END2"] if args["END2"] != None else "" |
| option = args["OPTION"] if args["OPTION"] != None else "" |
| command = "link "+str(end1) + " " + str(end2)+ " " + str(option) |
| try: |
| #response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| self.handle.sendline(command) |
| self.handle.expect("mininet>") |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return main.TRUE |
| |
| |
| def yank(self,**yankargs): |
| ''' |
| yank a mininet switch interface to a host |
| ''' |
| main.log.info('Yank the switch interface attached to a host') |
| args = utilities.parse_args(["SW","INTF"],**yankargs) |
| sw = args["SW"] if args["SW"] !=None else "" |
| intf = args["INTF"] if args["INTF"] != None else "" |
| command = "py "+ str(sw) + '.detach("' + str(intf) + '")' |
| try: |
| response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return main.TRUE |
| |
| def plug(self, **plugargs): |
| ''' |
| plug the yanked mininet switch interface to a switch |
| ''' |
| main.log.info('Plug the switch interface attached to a switch') |
| args = utilities.parse_args(["SW","INTF"],**plugargs) |
| sw = args["SW"] if args["SW"] !=None else "" |
| intf = args["INTF"] if args["INTF"] != None else "" |
| command = "py "+ str(sw) + '.attach("' + str(intf) + '")' |
| try: |
| response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return main.TRUE |
| |
| |
| |
| def dpctl(self,**dpctlargs): |
| ''' |
| Run dpctl command on all switches. |
| ''' |
| main.log.info('Run dpctl command on all switches') |
| args = utilities.parse_args(["CMD","ARGS"],**dpctlargs) |
| cmd = args["CMD"] if args["CMD"] != None else "" |
| cmdargs = args["ARGS"] if args["ARGS"] != None else "" |
| command = "dpctl "+cmd + " " + str(cmdargs) |
| try: |
| response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| return main.TRUE |
| |
| |
| def get_version(self): |
| file_input = path+'/lib/Mininet/INSTALL' |
| version = super(Mininet, self).get_version() |
| pattern = 'Mininet\s\w\.\w\.\w\w*' |
| for line in open(file_input,'r').readlines(): |
| result = re.match(pattern, line) |
| if result: |
| version = result.group(0) |
| return version |
| |
| def get_sw_controller_sanity(self, sw): |
| command = "sh ovs-vsctl get-controller "+str(sw) |
| try: |
| response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| if response: |
| return main.TRUE |
| else: |
| return main.FALSE |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| else: |
| main.log.info(response) |
| |
| def get_sw_controller(self,sw): |
| command = "sh ovs-vsctl get-controller "+str(sw) |
| try: |
| response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| print(response) |
| if response: |
| print("**********************") |
| return response |
| else: |
| return main.FALSE |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| else: |
| main.log.info(response) |
| |
| def assign_sw_controller(self,**kwargs): |
| ''' |
| count is only needed if there is more than 1 controller |
| ''' |
| args = utilities.parse_args(["COUNT"],**kwargs) |
| count = args["COUNT"] if args!={} else 1 |
| |
| argstring = "SW" |
| for j in range(count): |
| argstring = argstring + ",IP" + str(j+1) + ",PORT" + str(j+1) |
| args = utilities.parse_args(argstring.split(","),**kwargs) |
| |
| sw = args["SW"] if args["SW"] != None else "" |
| ptcpA = int(args["PORT1"])+int(sw) if args["PORT1"] != None else "" |
| ptcpB = "ptcp:"+str(ptcpA) if ptcpA != "" else "" |
| |
| command = "sh ovs-vsctl set-controller s" + str(sw) + " " + ptcpB + " " |
| for j in range(count): |
| i=j+1 |
| args = utilities.parse_args(["IP"+str(i),"PORT"+str(i)],**kwargs) |
| ip = args["IP"+str(i)] if args["IP"+str(i)] != None else "" |
| port = args["PORT" + str(i)] if args["PORT" + str(i)] != None else "" |
| tcp = "tcp:" + str(ip) + ":" + str(port) + " " if ip != "" else "" |
| command = command + tcp |
| try: |
| self.execute(cmd=command,prompt="mininet>",timeout=5) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| except: |
| main.log.info(self.name + ":::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::") |
| main.log.error( traceback.print_exc() ) |
| main.log.info(":::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::") |
| main.cleanup() |
| main.exit() |
| |
| def delete_sw_controller(self,sw): |
| ''' |
| Removes the controller target from sw |
| ''' |
| |
| command = "sh ovs-vsctl del-controller "+str(sw) |
| try: |
| response = self.execute(cmd=command,prompt="mininet>",timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| else: |
| main.log.info(response) |
| |
| |
| def disconnect(self): |
| main.log.info(self.name+": Disconnecting mininet...") |
| response = '' |
| if self.handle: |
| try: |
| response = self.execute(cmd="exit",prompt="(.*)",timeout=120) |
| response = self.execute(cmd="exit",prompt="(.*)",timeout=120) |
| self.handle.sendline("sudo mn -c") |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| else : |
| main.log.error(self.name+": Connection failed to the host") |
| response = main.FALSE |
| return response |
| |
| def arping(self, src, dest, destmac): |
| self.handle.sendline('') |
| self.handle.expect(["mininet",pexpect.EOF,pexpect.TIMEOUT]) |
| |
| self.handle.sendline(src + ' arping ' + dest) |
| try: |
| self.handle.expect([destmac,pexpect.EOF,pexpect.TIMEOUT]) |
| main.log.info(self.name+": ARP successful") |
| self.handle.expect(["mininet",pexpect.EOF,pexpect.TIMEOUT]) |
| return main.TRUE |
| except: |
| main.log.warn(self.name+": ARP FAILURE") |
| self.handle.expect(["mininet",pexpect.EOF,pexpect.TIMEOUT]) |
| return main.FALSE |
| |
| def decToHex(num): |
| return hex(num).split('x')[1] |
| |
| def getSwitchFlowCount(self, switch): |
| ''' |
| return the Flow Count of the switch |
| ''' |
| if self.handle: |
| cmd = "sh ovs-ofctl dump-aggregate %s" % switch |
| try: |
| response = self.execute(cmd=cmd, prompt="mininet>", timeout=10) |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + " " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| pattern = "flow_count=(\d+)" |
| result = re.search(pattern, response, re.MULTILINE) |
| if result is None: |
| print "no flow on switch print test" |
| main.log.info("Couldn't find flows on switch '', found: %s" % (switch, response)) |
| return main.FALSE |
| return result.group(1) |
| else: |
| main.log.error("Connection failed to the Mininet host") |
| |
| def check_flows(self, sw, dump_format=None): |
| if dump_format: |
| command = "sh ovs-ofctl -F " + dump_format + " dump-flows " + str(sw) |
| else: |
| command = "sh ovs-ofctl dump-flows "+str(sw) |
| try: |
| response=self.execute(cmd=command,prompt="mininet>",timeout=10) |
| return response |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| else: |
| main.log.info(response) |
| |
| def start_tcpdump(self, filename, intf = "eth0", port = "port 6633"): |
| ''' |
| Runs tpdump on an intferface and saves the file |
| intf can be specified, or the default eth0 is used |
| ''' |
| try: |
| self.handle.sendline("") |
| self.handle.expect("mininet>") |
| self.handle.sendline("sh sudo tcpdump -n -i "+ intf + " " + port + " -w " + filename.strip() + " &") |
| self.handle.sendline("") |
| self.handle.sendline("") |
| i=self.handle.expect(['No\ssuch\device','listening\son',pexpect.TIMEOUT,"mininet>"],timeout=10) |
| main.log.warn(self.handle.before + self.handle.after) |
| if i == 0: |
| main.log.error(self.name + ": tcpdump - No such device exists. tcpdump attempted on: " + intf) |
| return main.FALSE |
| elif i == 1: |
| main.log.info(self.name + ": tcpdump started on " + intf) |
| return main.TRUE |
| elif i == 2: |
| main.log.error(self.name + ": tcpdump command timed out! Check interface name, given interface was: " + intf) |
| return main.FALSE |
| elif i ==3: |
| main.log.info(self.name +": " + self.handle.before) |
| return main.TRUE |
| else: |
| main.log.error(self.name + ": tcpdump - unexpected response") |
| return main.FALSE |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| except: |
| main.log.info(self.name + ":::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::") |
| main.log.error( traceback.print_exc() ) |
| main.log.info(":::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::") |
| main.cleanup() |
| main.exit() |
| |
| def stop_tcpdump(self): |
| "pkills tcpdump" |
| try: |
| self.handle.sendline("sh sudo pkill tcpdump") |
| self.handle.sendline("") |
| self.handle.sendline("") |
| self.handle.expect("mininet>") |
| except pexpect.EOF: |
| main.log.error(self.name + ": EOF exception found") |
| main.log.error(self.name + ": " + self.handle.before) |
| main.cleanup() |
| main.exit() |
| except: |
| main.log.info(self.name + ":::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::") |
| main.log.error( traceback.print_exc() ) |
| main.log.info(":::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::") |
| main.cleanup() |
| main.exit() |
| |
| def compare_topo(self, topo, onos_json): |
| ''' |
| compares mn topology with ONOS topology |
| onos_list is a list of ONOS controllers, each element of the list should be (handle, name, ip, port) |
| onos_json is the output of the onos get_json function calling the /wm/onos/topology REST API |
| Returns: True if MN and ONOS topology match and False if the differ. |
| Differences between ONOS and MN topology will be printed to the log. |
| |
| Dependency: Requires STS to be installed on the TestON machine. STS can be pulled |
| from https://github.com/ucb-sts/sts.git . Currently the required functions from STS are located in the |
| topology_refactoring2 branch, but may be merged into the master branch soon. You may need to install some |
| python modules such as networkx to use the STS functions. |
| |
| To install sts: |
| $ git clone git://github.com/ucb-sts/sts.git |
| $ cd sts |
| $ git clone -b debugger git://github.com/ucb-sts/pox.git |
| $ sudo apt-get install python-dev |
| $ ./tools/install_hassel_python.sh |
| $ sudo pip install networkx |
| |
| Include sts in your PYTHONPATH. it should looks comething like: |
| PYTHONPATH=/home/admin/TestON:/home/admin/sts |
| |
| ''' |
| import sys |
| sys.path.append("~/sts") |
| #NOTE: Create this once per Test and pass the TestONTopology object around. It takes too long to create this object. |
| # This will make it easier to use the sts methods for severing links and solve that issue |
| import json |
| |
| link_results = main.TRUE |
| switch_results = main.TRUE |
| port_results = main.TRUE |
| |
| ########Switches####### |
| output = {"switches":[]} |
| for switch in topo.graph.switches: #iterate through the MN topology and pull out switches and and port info |
| ports = [] |
| for port in switch.ports.values(): |
| #print port.hw_addr.toStr(separator = '') |
| ports.append({'of_port': port.port_no, 'mac': str(port.hw_addr).replace('\'',''), 'name': port.name}) |
| output['switches'].append({"name": switch.name, "dpid": str(switch.dpid).zfill(16), "ports": ports }) |
| #print output |
| |
| #print json.dumps(output, sort_keys=True,indent=4,separators=(',', ': ')) |
| |
| |
| # created sorted list of dpid's in MN and ONOS for comparison |
| mnDPIDs=[] |
| for switch in output['switches']: |
| mnDPIDs.append(switch['dpid']) |
| mnDPIDs.sort() |
| #print mnDPIDs |
| if onos_json == "":#if rest call fails |
| main.log.error(self.name + ".compare_topo(): Empty JSON object given from ONOS rest call") |
| return main.FALSE |
| onos=onos_json |
| onosDPIDs=[] |
| for switch in onos['switches']: |
| onosDPIDs.append(switch['dpid'].replace(":",'')) |
| onosDPIDs.sort() |
| #print onosDPIDs |
| |
| if mnDPIDs!=onosDPIDs: |
| switch_results = main.FALSE |
| main.log.report( "Switches in MN but not in ONOS:") |
| main.log.report( str([switch for switch in mnDPIDs if switch not in onosDPIDs])) |
| main.log.report( "Switches in ONOS but not in MN:") |
| main.log.report( str([switch for switch in onosDPIDs if switch not in mnDPIDs])) |
| else:#list of dpid's match in onos and mn |
| switch_results = main.TRUE |
| |
| ################ports############# |
| for switch in output['switches']: |
| mn_ports = [] |
| onos_ports = [] |
| for port in switch['ports']: |
| mn_ports.append(port['of_port']) |
| for onos_switch in onos['switches']: |
| if onos_switch['dpid'].replace(':','') == switch['dpid']: |
| for port in onos_switch['ports']: |
| onos_ports.append(port['portNumber']) |
| mn_ports.sort() |
| onos_ports.sort() |
| #print "mn_ports[] = ", mn_ports |
| #print "onos_ports90 = ", onos_ports |
| |
| #if mn_ports == onos_ports: |
| #pass #don't set results to true here as this is just one of many checks and it might override a failure |
| |
| #For OF1.3, the OFP_local port number is 0xfffffffe or 4294967294 instead of 0xfffe or 65534 in OF1.0, ONOS topology |
| #sees the correct port number, however MN topolofy as read from line 151 of https://github.com/ucb-sts/sts/blob/ |
| #topology_refactoring2/sts/entities/teston_entities.py is 0xfffe which doesn't work correctly with OF1.3 switches. |
| #So a short term fix is to ignore the case when mn_port == 65534 and onos_port ==4294967294. |
| for mn_port,onos_port in zip(mn_ports,onos_ports): |
| if mn_port == onos_port or (mn_port == 65534 and onos_port ==4294967294): |
| continue |
| else: |
| port_results = main.FALSE |
| break |
| pass #don't set results to true here as this is just one of many checks and it might override a failure |
| ''' |
| else: #the ports of this switch don't match |
| port_results = main.FALSE |
| main.log.report("ports in MN switch %s(%s) but not in ONOS:" % (switch['name'],switch['dpid'])) |
| main.log.report( str([port for port in mn_ports if port not in onos_ports])) |
| main.log.report("ports in ONOS switch %s(%s) but not in MN:" % (switch['name'],switch['dpid'])) |
| main.log.report( str([port for port in onos_ports if port not in mn_ports])) |
| ''' |
| if port_results == main.FALSE: |
| main.log.report("ports in MN switch %s(%s) but not in ONOS:" % (switch['name'],switch['dpid'])) |
| main.log.report( str([port for port in mn_ports if port not in onos_ports])) |
| main.log.report("ports in ONOS switch %s(%s) but not in MN:" % (switch['name'],switch['dpid'])) |
| main.log.report( str([port for port in onos_ports if port not in mn_ports])) |
| |
| #######Links######## |
| # iterate through MN links and check if and ONOS link exists in both directions |
| # NOTE: Will currently only show mn links as down if they are cut through STS. |
| # We can either do everything through STS or wait for up_network_links |
| # and down_network_links to be fully implemented. |
| for link in topo.patch_panel.network_links: |
| #print "Link: %s" % link |
| #TODO: Find a more efficient search method |
| node1 = None |
| port1 = None |
| node2 = None |
| port2 = None |
| first_dir = main.FALSE |
| second_dir = main.FALSE |
| for switch in output['switches']: |
| if switch['name'] == link.node1.name: |
| node1 = switch['dpid'] |
| for port in switch['ports']: |
| if str(port['name']) == str(link.port1): |
| port1 = port['of_port'] |
| if node1 is not None and node2 is not None: |
| break |
| if switch['name'] == link.node2.name: |
| node2 = switch['dpid'] |
| for port in switch['ports']: |
| if str(port['name']) == str(link.port2): |
| port2 = port['of_port'] |
| if node1 is not None and node2 is not None: |
| break |
| # check onos link from node1 to node2 |
| for onos_link in onos['links']: |
| if onos_link['src']['dpid'].replace(":",'') == node1 and onos_link['dst']['dpid'].replace(":",'') == node2: |
| if onos_link['src']['portNumber'] == port1 and onos_link['dst']['portNumber'] == port2: |
| first_dir = main.TRUE |
| else: |
| main.log.report('the port numbers do not match for ' +str(link) + ' between ONOS and MN') |
| #print node1, ' to ', node2 |
| elif onos_link['src']['dpid'].replace(":",'') == node2 and onos_link['dst']['dpid'].replace(":",'') == node1: |
| if onos_link['src']['portNumber'] == port2 and onos_link['dst']['portNumber'] == port1: |
| second_dir = main.TRUE |
| else: |
| main.log.report('the port numbers do not match for ' +str(link) + ' between ONOS and MN') |
| #print node2, ' to ', node1 |
| else:#this is not the link you're looking for |
| pass |
| if not first_dir: |
| main.log.report('ONOS has issues with the link from '+str(link.node1.name) +"(dpid: "+ str(node1)+"):"+str(link.port1)+"(portNumber: "+str(port1)+")"+ ' to ' + str(link.node2.name) +"(dpid: "+ str(node2)+"):"+str(link.port2)+"(portNumber: "+str(port2)+")") |
| if not second_dir: |
| main.log.report('ONOS has issues with the link from '+str(link.node2.name) +"(dpid: "+ str(node2)+"):"+str(link.port2)+"(portNumber: "+str(port2)+")"+ ' to ' + str(link.node1.name) +"(dpid: "+ str(node1)+"):"+str(link.port1)+"(portNumber: "+str(port1)+")") |
| link_results = link_results and first_dir and second_dir |
| |
| |
| results = switch_results and port_results and link_results |
| # if not results: #To print out both topologies |
| # main.log.error("Topology comparison failed, printing json objects, MN then ONOS") |
| # main.log.error(str(json.dumps(output, sort_keys=True,indent=4,separators=(',', ': ')))) |
| # main.log.error('MN Links:') |
| # for link in topo.patch_panel.network_links: main.log.error(str("\tLink: %s" % link)) |
| # main.log.error(str(json.dumps(onos, sort_keys=True,indent=4,separators=(',', ': ')))) |
| return results |
| |
| |
| |
| |
| |
| if __name__ != "__main__": |
| import sys |
| sys.modules[__name__] = MininetCliDriver() |
| |