blob: 408f91850d1d41209a855f1d49ccc269aad43c04 [file] [log] [blame]
#!/usr/bin/env python
"""
Copyright 2018 Open Networking Foundation (ONF)
Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>
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/>.
"""
import pexpect
import re
import sys
import types
import os
import time
from math import pow
from drivers.common.cli.emulatordriver import Emulator
from core.graph import Graph
class MininetHostDriver( Emulator ):
"""
This class is created as a standalone Mininet host driver. It could
be used as driver for a mock physical host for proof-of-concept
testing in physical environment.
"""
def __init__( self ):
super( MininetHostDriver, self ).__init__()
self.handle = self
self.name = None
self.shortName = None
self.home = None
self.hostPrompt = "~#"
def connect( self, **connectargs ):
"""
Creates ssh handle for the Mininet host.
NOTE:
The ip_address would come from the topo file using the host tag, the
value can be an environment variable as well as a "localhost" to get
the ip address needed to ssh to the "bench"
"""
try:
for key in connectargs:
vars( self )[ key ] = connectargs[ key ]
self.name = self.options[ 'name' ]
self.shortName = self.options[ 'shortName' ]
try:
if os.getenv( str( self.ip_address ) ) is not None:
self.ip_address = os.getenv( str( self.ip_address ) )
else:
main.log.info( self.name +
": Trying to connect to " +
self.ip_address )
except KeyError:
main.log.info( "Invalid host name," +
" connecting to local host instead" )
self.ip_address = 'localhost'
except Exception as inst:
main.log.error( "Uncaught exception: " + str( inst ) )
self.handle = super(
MininetHostDriver,
self ).connect(
user_name=self.user_name,
ip_address=self.ip_address,
port=None,
pwd=self.pwd )
if self.handle:
main.log.info( "Connection successful to the " +
self.user_name +
"@" +
self.ip_address )
self.handle.sendline( "~/mininet/util/m " + self.shortName )
self.handle.sendline( "cd" )
self.handle.expect( self.hostPrompt )
self.handle.sendline( "" )
self.handle.expect( self.hostPrompt )
return main.TRUE
else:
main.log.error( "Connection failed to " +
self.user_name +
"@" +
self.ip_address )
return main.FALSE
except pexpect.EOF:
main.log.error( self.name + ": EOF exception found" )
main.log.error( self.name + ": " + self.handle.before )
main.cleanAndExit()
except Exception:
main.log.exception( self.name + ": Uncaught exception!" )
main.cleanAndExit()
def disconnect( self, **connectargs ):
"""
Called when test is complete to disconnect the handle.
"""
try:
self.handle.sendline( '' )
i = self.handle.expect( [ self.hostPrompt, pexpect.EOF, pexpect.TIMEOUT ],
timeout=2 )
if i == 0:
return main.TRUE
elif i == 1:
return main.TRUE
else:
main.log.error( "Connection failed to the host" )
return main.ERROR
except pexpect.EOF:
main.log.error( self.name + ": EOF exception found" )
main.log.error( self.name + ": " + self.handle.before )
main.cleanAndExit()
except Exception:
main.log.exception( self.name + ": Uncaught exception!" )
main.cleanAndExit()
def ping( self, dst, ipv6=False, wait=3 ):
"""
Description:
Ping from this host to another
Required:
dst: IP address of destination host
Optional:
ipv6: will use ping6 command if True; otherwise use ping command
wait: timeout for ping command
"""
try:
command = "ping6" if ipv6 else "ping"
command += " -c 1 -i 1 -W " + str( wait ) + " " + str( dst )
main.log.info( self.name + ": Sending: " + command )
self.handle.sendline( command )
i = self.handle.expect( [ self.hostPrompt, pexpect.TIMEOUT ],
timeout=wait + 1 )
if i == 1:
main.log.error(
self.name +
": timeout when waiting for response" )
main.log.error( "response: " + str( self.handle.before ) )
self.handle.sendline( "" )
self.handle.expect( self.hostPrompt )
response = self.handle.before
if re.search( ',\s0\%\spacket\sloss', response ):
main.log.info( self.name + ": no packets lost, host is reachable" )
return main.TRUE
else:
main.log.warn(
self.name +
": PACKET LOST, HOST IS NOT REACHABLE" )
return main.FALSE
except pexpect.EOF:
main.log.error( self.name + ": EOF exception found" )
main.log.error( self.name + ": " + self.handle.before )
main.cleanAndExit()
except Exception:
main.log.exception( self.name + ": Uncaught exception!" )
main.cleanAndExit()
def ifconfig( self, wait=3 ):
"""
Run ifconfig command on host and return output
"""
try:
command = "ifconfig"
main.log.info( self.name + ": Sending: " + command )
self.handle.sendline( command )
i = self.handle.expect( [ self.hostPrompt, pexpect.TIMEOUT ],
timeout=wait + 1 )
if i == 1:
main.log.error(
self.name +
": timeout when waiting for response" )
main.log.error( "response: " + str( self.handle.before ) )
self.handle.sendline( "" )
self.handle.expect( self.hostPrompt )
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.cleanAndExit()
except Exception:
main.log.exception( self.name + ": Uncaught exception!" )
main.cleanAndExit()