blob: e02df4c412a58628c6aeac4a2f8dd901d66e3e32 [file] [log] [blame]
#!/usr/bin/python
"""
Libraries for Trellis hosts.
"""
import time
import sys
sys.path.append('..')
from mininet.node import Host
from routinglib import RoutedHost, RoutedHost6, Router
from stratum import NoOffloadHost
class TaggedRoutedHost(RoutedHost):
"""Host that can be configured with multiple IP addresses."""
def __init__(self, name, ips, gateway, vlan, *args, **kwargs):
super(RoutedHost, self).__init__(name, *args, **kwargs)
self.ips = ips
self.gateway = gateway
self.vlan = vlan
self.vlanIntf = None
def config(self, **kwargs):
Host.config(self, **kwargs)
intf = self.defaultIntf()
self.vlanIntf = "%s.%s" % (intf, self.vlan)
self.cmd('ip -4 addr flush dev %s' % intf)
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('ip link add link %s name %s type vlan id %s' % (intf, self.vlanIntf, self.vlan))
self.cmd('ip link set up %s' % self.vlanIntf)
for ip in self.ips:
self.cmd('ip addr add %s dev %s' % (ip, self.vlanIntf))
self.cmd('ip route add default via %s' % self.gateway)
intf.name = self.vlanIntf
self.nameToIntf[self.vlanIntf] = intf
def terminate(self, **kwargs):
self.cmd('ip link remove link %s' % self.vlanIntf)
super(TaggedRoutedHost, self).terminate()
class DualHomedRoutedHost(NoOffloadHost):
def __init__(self, name, ips, gateway, *args, **kwargs):
super(DualHomedRoutedHost, self).__init__(name, **kwargs)
self.bond0 = None
self.ips = ips
self.gateway = gateway
def config(self, **kwargs):
super(DualHomedRoutedHost, self).config(**kwargs)
self.bondIntfs( self.intfs[0], self.intfs[1] )
for ip in self.ips:
self.cmd('ip addr add %s dev %s' % (ip, self.bond0))
self.cmd('ip route add default via %s' % self.gateway)
def bondIntfs( self, intf1, intf2, bondedName="bond0" ):
'''
Bond two interfaces together
intf1 - the first interface to bond
intf2 - the second interface to bond
bondedName - the prefix of the new interface name
'''
# Setup bonded interface
# TODO: support multiple bonded interfaces. Maybe just changed self.bond0 to a list of bonded intf names?
self.bond0 = "%s-%s" % ( self.name, bondedName )
self.cmd('modprobe bonding')
self.cmd('ip link add %s type bond' % self.bond0)
self.cmd('ip link set %s down' % intf1.name)
self.cmd('ip link set %s down' % intf2.name)
self.cmd('ip link set %s master %s' % (intf1.name, self.bond0))
self.cmd('ip link set %s master %s' % (intf2.name, self.bond0))
self.cmd('ip addr flush dev %s' % intf1.name)
self.cmd('ip addr flush dev %s' % intf2.name)
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('ip link set %s up' % self.bond0)
# NOTE: Issues with bonded intfs in mn data structures. Either only show bonded intf
# or create a custom class to handle bonded infs??
lowestIntf = min( [ intf1, intf2 ] )
highestIntf = max( [ intf1, intf2 ] )
lowestIntf.name = self.bond0
self.nameToIntf[self.bond0] = lowestIntf
del self.intfs[ self.ports[ highestIntf ] ]
del self.ports[ highestIntf ]
def terminate(self, **kwargs):
self.cmd('ip link set %s down' % self.bond0)
self.cmd('ip link delete %s' % self.bond0)
super(DualHomedRoutedHost, self).terminate()
class DualHomedTaggedRoutedHost(DualHomedRoutedHost):
def __init__(self, name, ips, gateway, vlan, *args, **kwargs):
super(DualHomedTaggedRoutedHost, self).__init__(name, ips, gateway, *args, **kwargs)
self.ips = ips
self.gateway = gateway
self.vlan = vlan
self.vlanIntf = None
def config(self, **kwargs):
super(DualHomedTaggedRoutedHost, self).config(**kwargs)
default_intf = self.defaultIntf()
self.vlanIntf = "%s.%s" % (default_intf, self.vlan)
self.cmd('ip -4 addr flush dev %s' % default_intf)
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('ip link add link %s name %s type vlan id %s' % (default_intf, self.vlanIntf, self.vlan))
self.cmd('ip link set up %s' % self.vlanIntf)
for ip in self.ips:
self.cmd('ip addr add %s dev %s' % (ip, self.vlanIntf))
self.cmd('ip route add default via %s' % self.gateway)
default_intf.name = self.vlanIntf
self.nameToIntf[self.vlanIntf] = default_intf
def terminate(self, **kwargs):
self.cmd('ip link remove link %s' % self.vlanIntf)
super(DualHomedTaggedRoutedHost, self).terminate()
class DhcpClient(Host):
def __init__(self, name, *args, **kwargs):
super(DhcpClient, self).__init__(name, **kwargs)
self.pidFile = '/run/dhclient-%s.pid' % self.name
self.leaseFile = '/var/lib/dhcp/dhcpclient-%s.lease' % (self.name, )
def config(self, **kwargs):
super(DhcpClient, self).config(**kwargs)
self.cmd('ip addr flush dev %s' % self.defaultIntf())
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('dhclient -q -4 -nw -pf %s -lf %s %s' % (self.pidFile, self.leaseFile, self.defaultIntf()))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(DhcpClient, self).terminate()
class Dhcp6Client(Host):
def __init__(self, name, *args, **kwargs):
super(Dhcp6Client, self).__init__(name, **kwargs)
self.pidFile = '/run/dhclient-%s.pid' % self.name
self.leaseFile = '/var/lib/dhcp/dhcpclient6-%s.lease' % (self.name, )
def config(self, **kwargs):
super(Dhcp6Client, self).config(**kwargs)
self.cmd('ip -4 addr flush dev %s' % self.defaultIntf())
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('dhclient -q -6 -nw -pf %s -lf %s %s' % (self.pidFile, self.leaseFile, self.defaultIntf()))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(Dhcp6Client, self).terminate()
class DhcpServer(RoutedHost):
binFile = '/usr/sbin/dhcpd'
pidFile = '/run/dhcp-server-dhcpd.pid'
configFile = './dhcpd.conf'
leasesFile = '/var/lib/dhcp/dhcpd.leases'
def config(self, **kwargs):
super(DhcpServer, self).config(**kwargs)
self.cmd('touch %s' % self.leasesFile)
self.cmd('%s -q -4 -pf %s -cf %s %s' % (self.binFile, self.pidFile, self.configFile, self.defaultIntf()))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(DhcpServer, self).terminate()
class Dhcp6Server(RoutedHost6):
binFile = '/usr/sbin/dhcpd'
pidFile = '/run/dhcp-server-dhcpd6.pid'
configFile = './dhcpd6.conf'
leasesFile = '/var/lib/dhcp/dhcpd6.leases'
def config(self, **kwargs):
super(Dhcp6Server, self).config(**kwargs)
linkLocalAddr = mac_to_ipv6_linklocal(kwargs['mac'])
self.cmd('ip -6 addr add dev %s scope link %s' % (self.defaultIntf(), linkLocalAddr))
self.cmd('touch %s' % self.leasesFile)
self.cmd('%s -q -6 -pf %s -cf %s %s' % (self.binFile, self.pidFile, self.configFile, self.defaultIntf()))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
self.cmd('rm -rf %s' % self.leasesFile)
super(Dhcp6Server, self).terminate()
class DhcpRelay(Router):
binFile = '/usr/sbin/dhcrelay'
pidFile = '/run/dhcp-relay.pid'
serverIp = None
gateway = None
def __init__(self, name, serverIp, gateway, *args, **kwargs):
super(DhcpRelay, self).__init__(name, **kwargs)
self.serverIp = serverIp
self.gateway = gateway
def config(self, **kwargs):
super(DhcpRelay, self).config(**kwargs)
ifacesStr = ' '.join(["-i " + ifaceName for ifaceName in self.interfaces.keys()])
self.cmd('route add default gw %s' % self.gateway)
self.cmd('%s -4 -a -pf %s %s %s' % (self.binFile, self.pidFile, ifacesStr, self.serverIp))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`', self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(DhcpRelay, self).terminate()
class TaggedDhcpClient(Host):
def __init__(self, name, vlan, *args, **kwargs):
super(TaggedDhcpClient, self).__init__(name, **kwargs)
self.pidFile = '/run/dhclient-%s.pid' % self.name
self.vlan = vlan
self.vlanIntf = None
def config(self, **kwargs):
super(TaggedDhcpClient, self).config(**kwargs)
self.vlanIntf = "%s.%s" % (self.defaultIntf(), self.vlan)
self.cmd('ip addr flush dev %s' % self.defaultIntf())
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('ip link add link %s name %s type vlan id %s' % (self.defaultIntf(), self.vlanIntf, self.vlan))
self.cmd('ip link set up %s' % self.vlanIntf)
self.cmd('dhclient -q -4 -nw -pf %s %s' % (self.pidFile, self.vlanIntf))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
self.cmd('ip link remove link %s' % self.vlanIntf)
super(TaggedDhcpClient, self).terminate()
class TaggedDhcpServer(TaggedRoutedHost):
binFile = '/usr/sbin/dhcpd'
pidFile = '/run/dhcp-server/dhcpd.pid'
configFile = './dhcpd.conf'
def config(self, **kwargs):
super(TaggedDhcpServer, self).config(**kwargs)
self.cmd('%s -q -4 -pf %s -cf %s %s' % (self.binFile, self.pidFile, self.configFile, self.vlanIntf))
def terminate(self, **kwargs):
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(TaggedDhcpServer, self).terminate()
class DualHomedDhcpClient(Host):
def __init__(self, name, *args, **kwargs):
super(DualHomedDhcpClient, self).__init__(name, **kwargs)
self.pidFile = '/run/dhclient-%s.pid' % self.name
self.bond0 = None
def config(self, **kwargs):
super(DualHomedDhcpClient, self).config(**kwargs)
self.bondIntfs( self.intfs[0], self.intfs[1] )
self.cmd('dhclient -q -4 -nw -pf %s %s' % (self.pidFile, self.bond0))
def bondIntfs( self, intf1, intf2, bondedName="bond0" ):
'''
Bond two interfaces together
intf1 - the first interface to bond
intf2 - the second interface to bond
bondedName - the prefix of the new interface name
'''
# Setup bonded interface
# TODO: support multiple bonded interfaces. Maybe just changed self.bond0 to a list of bonded intf names?
self.bond0 = "%s-%s" % ( self.name, bondedName )
self.cmd('modprobe bonding')
self.cmd('ip link add %s type bond' % self.bond0)
self.cmd('ip link set %s down' % intf1.name)
self.cmd('ip link set %s down' % intf2.name)
self.cmd('ip link set %s master %s' % (intf1.name, self.bond0))
self.cmd('ip link set %s master %s' % (intf2.name, self.bond0))
self.cmd('ip addr flush dev %s' % intf1.name)
self.cmd('ip addr flush dev %s' % intf2.name)
self.cmd('sysctl -w net.ipv4.ip_forward=0')
self.cmd('ip link set %s up' % self.bond0)
# NOTE: Issues with bonded intfs in mn data structures. Either only show bonded intf
# or create a custom class to handle bonded infs??
lowestIntf = min( [ intf1, intf2 ] )
highestIntf = max( [ intf1, intf2 ] )
lowestIntf.name = self.bond0
self.nameToIntf[self.bond0] = lowestIntf
del self.intfs[ self.ports[ highestIntf ] ]
del self.ports[ highestIntf ]
def terminate(self, **kwargs):
self.cmd('ip link set %s down' % self.bond0)
self.cmd('ip link delete %s' % self.bond0)
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(DualHomedDhcpClient, self).terminate()
class TrellisHost(NoOffloadHost):
def __init__(self, name, ips=[], gateway="", dualHomed=False, vlan=None, dhcpClient=False, dhcpServer=False, ipv6=False, *args, **kwargs):
super(TrellisHost, self).__init__(name, *args, **kwargs)
self.dualHomed = dualHomed
self.bond0 = None
self.vlan = vlan
self.vlanIntf = None
self.dhcpClient = dhcpClient
self.dhcpServer = dhcpServer
if dhcpClient:
self.pidFile = '/run/dhclient-%s.pid' % self.name
self.leaseFile = '/var/lib/dhcp/dhcpclient%s-%s.lease' % ("6" if ipv6 else "", self.name)
else:
self.ips = ips
self.gateway = gateway
if dhcpServer:
self.binFile = '/usr/sbin/dhcpd'
self.pidFile = '/run/dhcp-server-dhcpd%s.pid' % ("6" if ipv6 else "")
self.configFile = './dhcpd%s.conf' % ("6" if ipv6 else "")
self.leasesFile = '/var/lib/dhcp/dhcpd%s.leases' % ("6" if ipv6 else "")
self.ipv6 = ipv6
def config(self, **kwargs):
super(TrellisHost, self).config(**kwargs)
if self.dualHomed:
self.bondIntfs( self.intfs[0], self.intfs[1] )
self.cmd('ip %s addr flush dev %s' % ("-4" if self.ipv6 else "", self.defaultIntf()))
self.cmd('sysctl -w net.ipv4.ip_forward=0')
if not self.ipv6:
self.cmd('sysctl -w net.ipv6.conf.all.disable_ipv6=1')
if self.vlan:
# Setup vlan interface
defaultIntf = self.defaultIntf()
self.vlanIntf = "%s.%s" % (defaultIntf, self.vlan)
self.cmd('ip link add link %s name %s type vlan id %s' % (defaultIntf, self.vlanIntf, self.vlan))
self.cmd('ip link set up %s' % self.vlanIntf)
defaultIntf.name = self.vlanIntf
self.nameToIntf[self.vlanIntf] = defaultIntf
if self.dhcpClient:
time.sleep(3)
self.cmd('dhclient -q -%s -nw -pf %s -lf %s %s' % (6 if self.ipv6 else 4, self.pidFile, self.leaseFile, self.defaultIntf()))
else:
# Setup IP addresses
for ip in self.ips:
self.cmd('ip addr add %s dev %s' % (ip, self.defaultIntf()))
self.cmd('ip route add default via %s' % self.gateway)
if self.dhcpServer:
if self.ipv6:
linkLocalAddr = mac_to_ipv6_linklocal(kwargs['mac'])
self.cmd('ip -6 addr add dev %s scope link %s' % (self.defaultIntf(), linkLocalAddr))
self.cmd('touch %s' % self.leasesFile)
self.cmd('%s -q -%s -pf %s -cf %s %s' % (self.binFile, 6 if self.ipv6 else 4, self.pidFile, self.configFile, self.defaultIntf()))
def bondIntfs( self, intf1, intf2, bondedName="bond0" ):
'''
Bond two interfaces together
intf1 - the first interface to bond
intf2 - the second interface to bond
bondedName - the prefix of the new interface name
'''
# Setup bonded interface
# TODO: support multiple bonded interfaces. Maybe just changed self.bond0 to a list of bonded intf names?
self.bond0 = "%s-%s" % ( self.name, bondedName )
self.cmd('modprobe bonding')
self.cmd('ip link add %s type bond' % self.bond0)
self.cmd('ip link set %s down' % intf1.name)
self.cmd('ip link set %s down' % intf2.name)
self.cmd('ip link set %s master %s' % (intf1.name, self.bond0))
self.cmd('ip link set %s master %s' % (intf2.name, self.bond0))
self.cmd('ip addr flush dev %s' % intf1.name)
self.cmd('ip addr flush dev %s' % intf2.name)
self.cmd('ip link set %s up' % self.bond0)
# NOTE: Issues with bonded intfs in mn data structures. Either only show bonded intf
# or create a custom class to handle bonded infs??
lowestIntf = min( [ intf1, intf2 ] )
highestIntf = max( [ intf1, intf2 ] )
lowestIntf.name = self.bond0
self.nameToIntf[self.bond0] = lowestIntf
del self.intfs[ self.ports[ highestIntf ] ]
del self.ports[ highestIntf ]
def terminate(self, **kwargs):
if self.vlan:
self.cmd('ip link remove link %s' % self.vlanIntf)
if self.dualHomed:
self.cmd('ip link set %s down' % self.bond0)
self.cmd('ip link delete %s' % self.bond0)
if self.dhcpClient:
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
self.cmd('rm -rf %s' % self.leaseFile)
if self.dhcpServer:
self.cmd('kill -9 `cat %s`' % self.pidFile)
self.cmd('rm -rf %s' % self.pidFile)
super(TrellisHost, self).terminate()
# Utility for IPv6
def mac_to_ipv6_linklocal(mac):
'''
Convert mac address to link-local IPv6 address
'''
# Remove the most common delimiters; dots, dashes, etc.
mac_value = int(mac.translate(None, ' .:-'), 16)
# Split out the bytes that slot into the IPv6 address
# XOR the most significant byte with 0x02, inverting the
# Universal / Local bit
high2 = mac_value >> 32 & 0xffff ^ 0x0200
high1 = mac_value >> 24 & 0xff
low1 = mac_value >> 16 & 0xff
low2 = mac_value & 0xffff
return 'fe80::{:04x}:{:02x}ff:fe{:02x}:{:04x}'.format(high2, high1, low1, low2)