Extracting common code to trellis library
Change-Id: Iaa3170bb7679a273473bb3459082121e465907ea
diff --git a/trellis/trellislib.py b/trellis/trellislib.py
new file mode 100644
index 0000000..6bff4cc
--- /dev/null
+++ b/trellis/trellislib.py
@@ -0,0 +1,128 @@
+#!/usr/bin/python
+
+"""
+Libraries for Trellis hosts.
+"""
+
+import sys
+sys.path.append('..')
+from mininet.node import Host
+from routinglib import RoutedHost
+
+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)
+ self.vlanIntf = "%s.%s" % (self.defaultIntf(), self.vlan)
+ self.cmd('ip -4 addr flush dev %s' % self.defaultIntf())
+ 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)
+
+ 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)
+
+ def terminate(self, **kwargs):
+ self.cmd('ip link remove link %s' % self.vlanIntf)
+ super(TaggedRoutedHost, 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
+
+ def config(self, **kwargs):
+ super(DhcpClient, self).config(**kwargs)
+ self.cmd('ip addr flush dev %s' % self.defaultIntf())
+ self.cmd('dhclient -q -4 -nw -pf %s %s' % (self.pidFile, 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 DhcpServer(RoutedHost):
+ binFile = '/usr/sbin/dhcpd'
+ pidFile = '/run/dhcp-server/dhcpd.pid'
+ configFile = './dhcpd.conf'
+
+ def config(self, **kwargs):
+ super(DhcpServer, self).config(**kwargs)
+ 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 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('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)
+ intf0 = self.intfs[0].name
+ intf1 = self.intfs[1].name
+ self.bond0 = "%s-bond0" % self.name
+ self.cmd('modprobe bonding')
+ self.cmd('ip link add %s type bond' % self.bond0)
+ self.cmd('ip link set %s down' % intf0)
+ self.cmd('ip link set %s down' % intf1)
+ self.cmd('ip link set %s master %s' % (intf0, self.bond0))
+ self.cmd('ip link set %s master %s' % (intf1, self.bond0))
+ self.cmd('ip addr flush dev %s' % intf0)
+ self.cmd('ip addr flush dev %s' % intf1)
+ self.cmd('ip link set %s up' % self.bond0)
+ self.cmd('dhclient -q -4 -nw -pf %s %s' % (self.pidFile, self.bond0))
+
+ 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()