def nextSubnetHost(self, addr, mask, gw):
try:
last_ip = self.subnetHostLastIP[subnetStr(addr, mask)]
except KeyError:
last_ip = gw
pieces = last_ip.split('.')
pieces[3] = str(1 + int(pieces[3]))
next_ip = '.'.join(pieces)
self.subnetHostLastIP[subnetStr(addr, mask)] = next_ip
return next_ip
def nextSubnetHost(self, addr, mask, gw):
try:
last_ip = self.subnetHostLastIP[subnetStr(addr, mask)]
except KeyError:
last_ip = gw
pieces = last_ip.split('.')
pieces[3] = str(1 + int(pieces[3]))
next_ip = '.'.join(pieces)
self.subnetHostLastIP[subnetStr(addr, mask)] = next_ip
return next_ip
def buildRouter(self, network, r, create_edge, create_srs):
r.name = r.name.encode('ascii', 'ignore')
router = network.addSwitch(r.name + '-rtr',
dpid=self.padDpid(r.self_dpid))
nat = network.addSwitch(r.name + '-nat',
dpid=self.padDpid(r.nat_dpid))
network.addLink(router, nat, **self.linkopts)
translator = network.addSwitch(r.name + '-tr',
dpid=self.padDpid(r.tr_dpid))
acl_table = network.addSwitch(r.name + '-acl',
dpid=self.padDpid(r.acl_dpid))
for (i, s) in enumerate(r.subnets):
s.gw = s.gw.encode('ascii', 'ignore')
N = i + 1
inPt = 2 * N - 1
outPt = 2 * N
rtrPt = N + 1
network.addLink(acl_table, translator, port1=outPt, port2=inPt,
**self.linkopts)
network.addLink(translator, router, port1=outPt, port2=rtrPt,
**self.linkopts)
if not create_srs:
continue
srs = self.subnetRootSwitch[subnetStr(s.addr, s.mask)]
network.addLink(srs, acl_table, port2=inPt, **self.linkopts)
# if there's room for hosts, add an edge switch with some hosts!
if s.mask < 30 and create_edge:
self.globalEdgeSwCount += 1
edge_switch = network.addSwitch('s' + str(self.globalEdgeSwCount))
network.addLink(srs, edge_switch, **self.linkopts)
for h in irange(1, self.numHostsPerSubnet):
self.globalHostCount += 1
name = "host%d" % self.globalHostCount
ip = self.nextSubnetHost(s.addr, s.mask, s.gw)
host = network.addHost(name, ip='%s/%d' % (ip, s.mask),
defaultRoute='dev %s-eth0 via %s'
% (name, s.gw))
network.addLink(host, edge_switch, **self.linkopts)
# Finally, add hosts which represents our BGP peers
for p in r.peers:
self.globalPeerCount += 1
name = "peer%d" % self.globalPeerCount
peer = network.addHost(name, ip='%s/%d' % (p.ip, p.mask),
mac=p.mac)
network.addLink(router, peer, **self.linkopts)
self.networksToLaunch[name] = p.networks
def nextSubnetHost(self, addr, mask, gw):
try:
last_ip = self.subnetHostLastIP[subnetStr(addr, mask)]
except KeyError:
last_ip = gw
pieces = last_ip.split('.')
pieces[3] = str(1 + int(pieces[3]))
next_ip = '.'.join(pieces)
# If IP has been used by the gw, find a nother available one
if next_ip in self.gwIPList:
pieces = next_ip.split('.')
pieces[3] = str(1 + int(pieces[3]))
next_ip = '.'.join(pieces)
self.subnetHostLastIP[subnetStr(addr, mask)] = next_ip
return next_ip
def nextSubnetHost(self, addr, mask, gw):
try:
last_ip = self.subnetHostLastIP[subnetStr(addr, mask)]
except KeyError:
last_ip = gw
pieces = last_ip.split('.')
pieces[3] = str(1 + int(pieces[3]))
next_ip = '.'.join(pieces)
# If IP has been used by the gw, find a nother available one
if next_ip in self.gwIPList:
pieces = next_ip.split('.')
pieces[3] = str(1 + int(pieces[3]))
next_ip = '.'.join(pieces)
self.subnetHostLastIP[subnetStr(addr, mask)] = next_ip
return next_ip
def buildRouter(self, network, r, create_edge, create_srs):
r.name = r.name.encode('ascii', 'ignore')
router = network.addSwitch(r.name + '-rtr',
dpid=self.padDpid(r.self_dpid))
nat = network.addSwitch(r.name + '-nat', dpid=self.padDpid(r.nat_dpid))
network.addLink(router, nat, **self.linkopts)
translator = network.addSwitch(r.name + '-tr',
dpid=self.padDpid(r.tr_dpid))
acl_table = network.addSwitch(r.name + '-acl',
dpid=self.padDpid(r.acl_dpid))
vlan = network.addSwitch(r.name + '-vlan',
dpid=self.padDpid(r.vlan_dpid))
for (i, s) in enumerate(r.subnets):
s.gw = s.gw.encode('ascii', 'ignore')
N = i + 1
inPt = 2 * N - 1
outPt = 2 * N
rtrPt = N + 1
network.addLink(vlan,
acl_table,
port1=r.num_physical + N,
port2=inPt,
**self.linkopts)
network.addLink(acl_table,
translator,
port1=outPt,
port2=inPt,
**self.linkopts)
network.addLink(translator,
router,
port1=outPt,
port2=rtrPt,
**self.linkopts)
if not create_srs:
return # Don't create anything
for p in r.ports:
# Not a vlan tag
if p.vlan_type == '':
s = filter(lambda x: p.id in x.physical_portid, r.subnets)[0]
srs = self.subnetRootSwitch[subnetStr(s.addr, s.mask)]
network.addLink(srs, vlan, port2=p.id, **self.linkopts)
# if there's room for hosts, add an edge switch with some hosts!
if s.mask < 30 and create_edge:
self.globalEdgeSwCount += 1
edge_switch = network.addSwitch(
's' + str(self.globalEdgeSwCount))
network.addLink(srs, edge_switch, **self.linkopts)
for h in irange(1, self.numHostsPerSubnet):
self.globalHostCount += 1
name = "host%d" % self.globalHostCount
ip = self.nextSubnetHost(s.addr, s.mask, s.gw)
host = network.addHost(
name,
ip='%s/%d' % (ip, s.mask),
defaultRoute='dev %s-eth0 via %s' % (name, s.gw))
network.addLink(host, edge_switch, **self.linkopts)
elif p.vlan_type.lower() == 'access':
s = filter(lambda x: p.id in x.physical_portid, r.subnets)
if len(s) == 0:
print "Warning! %s:%s is not in a subnet!" % (r.name,
p.name)
continue
s = s[0]
if s.mask < 30 and create_edge:
self.globalHostCount += 1
name = "host%d" % self.globalHostCount
ip = self.nextSubnetHost(s.addr, s.mask, s.gw)
host = network.addHost(name,
ip='%s/%d' % (ip, s.mask),
defaultRoute='dev %s-eth0 via %s' %
(name, s.gw))
network.addLink(host, vlan, port2=p.id, **self.linkopts)
elif p.vlan_type.lower() == 'trunk':
self.trunkPorts[r.name.lower(), p.name.lower()] = p.id
def buildRouter(self, network, r, create_edge, create_srs):
r.name = r.name.encode('ascii', 'ignore')
router = network.addSwitch(r.name + '-rtr',
dpid=self.padDpid(r.self_dpid))
nat = network.addSwitch(r.name + '-nat',
dpid=self.padDpid(r.nat_dpid))
network.addLink(router, nat, **self.linkopts)
translator = network.addSwitch(r.name + '-tr',
dpid=self.padDpid(r.tr_dpid))
acl_table = network.addSwitch(r.name + '-acl',
dpid=self.padDpid(r.acl_dpid))
vlan = network.addSwitch(r.name + '-vlan',
dpid=self.padDpid(r.vlan_dpid))
for (i, s) in enumerate(r.subnets):
s.gw = s.gw.encode('ascii', 'ignore')
N = i + 1
inPt = 2 * N - 1
outPt = 2 * N
rtrPt = N + 1
network.addLink(vlan, acl_table, port1=r.num_physical+N, port2=inPt,
**self.linkopts)
network.addLink(acl_table, translator, port1=outPt, port2=inPt,
**self.linkopts)
network.addLink(translator, router, port1=outPt, port2=rtrPt,
**self.linkopts)
if not create_srs:
return # Don't create anything
for p in r.ports:
# Not a vlan tag
if p.vlan_type == '':
s = filter(lambda x: p.id in x.physical_portid, r.subnets)[0]
srs = self.subnetRootSwitch[subnetStr(s.addr, s.mask)]
network.addLink(srs, vlan, port2=p.id, **self.linkopts)
# if there's room for hosts, add an edge switch with some hosts!
if s.mask < 30 and create_edge:
self.globalEdgeSwCount += 1
edge_switch = network.addSwitch('s' + str(self.globalEdgeSwCount))
network.addLink(srs, edge_switch, **self.linkopts)
for h in irange(1, self.numHostsPerSubnet):
self.globalHostCount += 1
name = "host%d" % self.globalHostCount
ip = self.nextSubnetHost(s.addr, s.mask, s.gw)
host = network.addHost(name, ip='%s/%d' % (ip, s.mask),
defaultRoute='dev %s-eth0 via %s'
% (name, s.gw))
network.addLink(host, edge_switch, **self.linkopts)
elif p.vlan_type.lower() == 'access':
s = filter(lambda x: p.id in x.physical_portid, r.subnets)
if len(s) == 0:
print "Warning! %s:%s is not in a subnet!" % (r.name, p.name)
continue
s = s[0]
if s.mask < 30 and create_edge:
self.globalHostCount += 1
name = "host%d" % self.globalHostCount
ip = self.nextSubnetHost(s.addr, s.mask, s.gw)
host = network.addHost(name, ip='%s/%d' % (ip, s.mask),
defaultRoute='dev %s-eth0 via %s'
% (name, s.gw))
network.addLink(host, vlan, port2 = p.id, **self.linkopts)
elif p.vlan_type.lower() == 'trunk':
self.trunkPorts[r.name.lower(), p.name.lower()] = p.id
