Implement changes to cord-tester framework for vrouter configuration.
And add vrouter tests to verify routes.
diff --git a/src/test/utils/CordContainer.py b/src/test/utils/CordContainer.py
new file mode 100644
index 0000000..4d713d7
--- /dev/null
+++ b/src/test/utils/CordContainer.py
@@ -0,0 +1,235 @@
+import os,time
+import io
+import json
+from pyroute2 import IPRoute
+from itertools import chain
+from nsenter import Namespace
+from docker import Client
+from shutil import copy
+
+class docker_netns(object):
+
+    dckr = Client()
+    def __init__(self, name):
+        pid = int(self.dckr.inspect_container(name)['State']['Pid'])
+        if pid == 0:
+            raise Exception('no container named {0}'.format(name))
+        self.pid = pid
+
+    def __enter__(self):
+        pid = self.pid
+        if not os.path.exists('/var/run/netns'):
+            os.mkdir('/var/run/netns')
+        os.symlink('/proc/{0}/ns/net'.format(pid), '/var/run/netns/{0}'.format(pid))
+        return str(pid)
+
+    def __exit__(self, type, value, traceback):
+        pid = self.pid
+        os.unlink('/var/run/netns/{0}'.format(pid))
+
+flatten = lambda l: chain.from_iterable(l)
+
+class Container(object):
+    dckr = Client()
+    def __init__(self, name, image, tag = 'latest', command = 'bash', quagga_config = None):
+        self.name = name
+        self.image = image
+        self.tag = tag
+        self.image_name = image + ':' + tag
+        self.id = None
+        self.command = command
+        if quagga_config is not None:
+            self.bridge = quagga_config['bridge']
+            self.ipaddress = quagga_config['ip']
+            self.mask = quagga_config['mask']
+        else:
+            self.bridge = None
+            self.ipaddress = None
+            self.mask = None
+
+    @classmethod
+    def build_image(cls, dockerfile, tag, force=True, nocache=False):
+        f = io.BytesIO(dockerfile.encode('utf-8'))
+        if force or not cls.image_exists(tag):
+            print('Build {0}...'.format(tag))
+            for line in cls.dckr.build(fileobj=f, rm=True, tag=tag, decode=True, nocache=nocache):
+                if 'stream' in line:
+                    print(line['stream'].strip())
+
+    @classmethod
+    def image_exists(cls, name):
+        return name in [ctn['RepoTags'][0] for ctn in cls.dckr.images()]
+
+    @classmethod
+    def create_host_config(cls, port_list = None, host_guest_map = None, privileged = False):
+        port_bindings = None
+        binds = None
+        if port_list:
+            port_bindings = {}
+            for p in port_list:
+                port_bindings[str(p)] = str(p)
+
+        if host_guest_map:
+            binds = []
+            for h, g in host_guest_map:
+                binds.append('{0}:{1}'.format(h, g))
+
+        return cls.dckr.create_host_config(binds = binds, port_bindings = port_bindings, privileged = privileged)
+
+    @classmethod
+    def cleanup(cls, image):
+        cnt_list = filter(lambda c: c['Image'] == image, cls.dckr.containers())
+        for cnt in cnt_list:
+            print('Cleaning container %s' %cnt['Id'])
+            cls.dckr.kill(cnt['Id'])
+            cls.dckr.remove_container(cnt['Id'], force=True)
+
+    @classmethod
+    def remove_container(cls, name, force=True):
+        try:
+            cls.dckr.remove_container(name, force = force)
+        except: pass
+
+    def exists(self):
+        return '/{0}'.format(self.name) in list(flatten(n['Names'] for n in self.dckr.containers()))
+
+    def img_exists(self):
+        return self.image_name in [ctn['RepoTags'][0] for ctn in self.dckr.images()]
+
+    def ip(self):
+        cnt_list = filter(lambda c: c['Image'] == self.image_name, self.dckr.containers())
+        cnt_settings = cnt_list.pop()
+        return cnt_settings['NetworkSettings']['Networks']['bridge']['IPAddress']
+
+    def kill(self, remove = True):
+        self.dckr.kill(self.name)
+        self.dckr.remove_container(self.name, force=True)
+
+    def start(self, rm = True, ports = None, volumes = None, host_config = None, 
+              environment = None, tty = False, stdin_open = True):
+
+        if rm and self.exists():
+            print('Removing container:', self.name)
+            self.dckr.remove_container(self.name, force=True)
+
+        ctn = self.dckr.create_container(image=self.image_name, ports = ports, command=self.command, 
+                                         detach=True, name=self.name,
+                                         environment = environment, 
+                                         volumes = volumes, 
+                                         host_config = host_config, stdin_open=stdin_open, tty = tty)
+        self.dckr.start(container=self.name)
+        if self.bridge:
+            self.connect_to_br()
+        self.id = ctn['Id']
+        return ctn
+
+    def connect_to_br(self):
+        with docker_netns(self.name) as pid:
+            ip = IPRoute()
+            br = ip.link_lookup(ifname=self.bridge)
+            if len(br) == 0:
+                ip.link_create(ifname=self.bridge, kind='bridge')
+                br = ip.link_lookup(ifname=self.bridge)
+            br = br[0]
+            ip.link('set', index=br, state='up')
+
+            ifs = ip.link_lookup(ifname=self.name)
+            if len(ifs) > 0:
+               ip.link_remove(ifs[0])
+
+            ip.link_create(ifname=self.name, kind='veth', peer=pid)
+            host = ip.link_lookup(ifname=self.name)[0]
+            ip.link('set', index=host, master=br)
+            ip.link('set', index=host, state='up')
+            guest = ip.link_lookup(ifname=pid)[0]
+            ip.link('set', index=guest, net_ns_fd=pid)
+            with Namespace(pid, 'net'):
+                ip = IPRoute()
+                ip.link('set', index=guest, ifname='eth1')
+                ip.addr('add', index=guest, address=self.ipaddress, mask=self.mask)
+                ip.link('set', index=guest, state='up')
+
+    def execute(self, cmd, tty = True, stream = False, shell = False):
+        res = 0
+        if type(cmd) == str:
+            cmds = (cmd,)
+        else:
+            cmds = cmd
+        if shell:
+            for c in cmds:
+                res += os.system('docker exec {0} {1}'.format(self.name, c))
+            return res
+        for c in cmds:
+            i = self.dckr.exec_create(container=self.name, cmd=c, tty = tty, privileged = True)
+            self.dckr.exec_start(i['Id'], stream = stream, detach=True)
+            result = self.dckr.exec_inspect(i['Id'])
+            res += 0 if result['ExitCode'] == None else result['ExitCode']
+        return res
+
+class Onos(Container):
+
+    quagga_config = { 'bridge' : 'quagga-br', 'ip': '10.10.0.4', 'mask' : 16 }
+    env = { 'ONOS_APPS' : 'drivers,openflow,proxyarp,aaa,igmp,vrouter,fwd' }
+    ports = [ 8181, 8101, 9876, 6653, 6633, 2000, 2620 ]
+    host_config_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..', 'setup/onos-config')
+    guest_config_dir = '/root/onos/config'
+    host_guest_map = ( (host_config_dir, guest_config_dir), )
+
+    def __init__(self, name = 'cord-onos', image = 'onosproject/onos', tag = 'latest', 
+                 boot_delay = 60, restart = False, network_cfg = None):
+        if restart is True:
+            ##Find the right image to restart
+            running_image = filter(lambda c: c['Names'][0] == '/{}'.format(name), self.dckr.containers())
+            if running_image:
+                image_name = running_image[0]['Image']
+                try:
+                    image = image_name.split(':')[0]
+                    tag = image_name.split(':')[1]
+                except: pass
+
+        super(Onos, self).__init__(name, image, tag = tag, quagga_config = self.quagga_config)
+        if restart is True and self.exists():
+            self.kill()
+        if not self.exists():
+            self.remove_container(name, force=True)
+            host_config = self.create_host_config(port_list = self.ports,
+                                                  host_guest_map = self.host_guest_map)
+            volumes = []
+            for _,g in self.host_guest_map:
+                volumes.append(g)
+            if network_cfg is not None:
+                json_data = json.dumps(network_cfg)
+                with open('{}/network-cfg.json'.format(self.host_config_dir), 'w') as f:
+                    f.write(json_data)
+            print('Starting ONOS container %s' %self.name)
+            self.start(ports = self.ports, environment = self.env, 
+                       host_config = host_config, volumes = volumes, tty = True)
+            print('Waiting %d seconds for ONOS to boot' %(boot_delay))
+            time.sleep(boot_delay)
+
+class Radius(Container):
+    ports = [ 1812, 1813 ]
+    env = {'TIMEZONE':'America/Los_Angeles', 
+           'DEBUG': 'true', 'cert_password':'whatever', 'primary_shared_secret':'radius_password'
+           }
+    host_db_dir = os.path.join(os.getenv('HOME'), 'services', 'radius', 'data', 'db')
+    guest_db_dir = os.path.join(os.path.sep, 'opt', 'db')
+    host_config_dir = os.path.join(os.getenv('HOME'), 'services', 'radius', 'freeradius')
+    guest_config_dir = os.path.join(os.path.sep, 'etc', 'freeradius')
+    start_command = '/root/start-radius.py'
+    host_guest_map = ( (host_db_dir, guest_db_dir),
+                       (host_config_dir, guest_config_dir)
+                       )
+    def __init__(self, name = 'cord-radius', image = 'freeradius', tag = 'podd'):
+        super(Radius, self).__init__(name, image, tag = tag, command = self.start_command)
+        if not self.exists():
+            self.remove_container(name, force=True)
+            host_config = self.create_host_config(port_list = self.ports,
+                                                  host_guest_map = self.host_guest_map)
+            volumes = []
+            for _,g in self.host_guest_map:
+                volumes.append(g)
+            self.start(ports = self.ports, environment = self.env, 
+                       volumes = volumes, 
+                       host_config = host_config, tty = True)
+