def cloud_init(net, vnfd, host_name):
"Configures the networks."
host = net.getNodeByName(host_name)
cloudinit = vnfd['topology_template']['node_templates']['VDU1'][
'properties']['user_data']
output('*** Initializing VDU ' + host_name + ' ...\n')
host.cmdPrint(cloudinit)
def vnfd_list(self, line):
"Lists all VNFD uploaded."
if line:
output('Use: vnfd_list\n')
return None
for i in VNFD:
output('%s: %s\n' % (i, VNFD[i]['description']))
#output('%s' % VNFD.keys() + '\n')
return None
def vnfd_delete(self, line):
"Deletes a given vnfd."
if len(line.split()) != 1:
output('Use: vnfd_delete <VNFD-NAME>\n')
return None
vnfd_name = line.split()[0]
if VNFD.has_key(vnfd_name):
del VNFD[vnfd_name]
else:
output('<VNFD-NAME> does not exist\n')
return None
def vnffg_delete(self, line):
"Deletes a given vnffg."
net = self.mn
if len(line.split()) != 1:
output('Use: vnffg_delete <VNFFG-NAME>\n')
return None
vnffg_name = line.split()[0]
if vnffg_name in VNFFGS:
del VNFFGS[VNFFGS.index(vnffg_name)]
# net.delNode(vnf_name)
# AttributeError: 'Mininet' object has no attribute 'delNode'
else:
output('<VNFFG-NAME> does not exist\n')
return None
def vnfd_create(self, line, jinja=False):
"Creates vnfd from template."
if len(line.split()) != 3 or line.split()[0] != '--vnfd-file':
output('Use: vnfd_create --vnfd-file <yaml file path> <VNFD-NAME>\n')
return None
file_path = line.split()[1]
vnfd = parse_tosca(file_path)
if vnfd:
vnfd_name = line.split()[2]
if not VNFD.has_key(vnfd_name):
VNFD[vnfd_name] = vnfd
else:
output('<VNFD-NAME> already in use\n')
return None
def list_ports(self, line):
"List all ports."
if len(line.split()) != 0:
output('Use: list_ports\n')
return None
for i in PORTS:
if i[0] == 's':
output('%s ' % i)
for j in PORTS[i]:
output('%s ' % j.IP())
else:
output(i, PORTS[i])
output('\n')
return None
def vnfd_template_show(self, line):
"Shows the template of a given vnfd."
if len(line.split()) != 1:
output('Wrong number or arguments\n')
output('Use: vnfd_template_show <VNFD-NAME>\n')
return None
vnfd_name = line.split()[0]
output(('%s' % VNFD[vnfd_name]) + '\n')
return None
def add_host(self, line):
"Adds a host to the mininet topology."
net = self.mn
if len(line.split()) < 1:
output('Use: add_host <HOST-NAME> [<IP1/masc> <IP2/masc> ...]\n')
return None
host_name = line.split()[0]
if host_name in HOSTS:
output('<HOST-NAME> already in use\n')
return None
ips = line.split()[1:]
if MULTSWITCHES:
i = 1
switchs = []
for i in ips:
try:
ip_address = netaddr.IPNetwork(i)
except netaddr.core.AddrFormatError:
output('IP format not valid: ' + i + '\n')
output(
'Use: add_host <HOST-NAME> [<IP1/masc> <IP2/masc> ...]\n')
return None
switch_name = 's%s' % ip_address.network
if not SWITCH.has_key(switch_name):
SWITCH[switch_name] = net.addSwitch(switch_name[:10])
switchs.append(switch_name)
host = net.addHost(host_name)
HOSTS.append(host_name)
for i in switchs:
net.addLink(i[:10], host)
PORTS[i[:10]].append(host)
else:
host = net.addHost(host_name)
HOSTS.append(host_name)
net.addLink('s1', host)
PORTS['s1'].append(host)
configure_host2(net, ips, host_name)
return None
def vnf_create(self, line, jinja=False):
"Creates vnf from vnfd previously created or directly from template."
net = self.mn
if len(line.split()) != 3 or line.split()[0] not in [
'--vnfd-name', '--vnfd-file', '--vnfd-template'
]:
output('Use: vnf_create --vnfd-name <VNFD-NAME> <VNF-NAME>\n')
output(' vnf_create --vnfd-file <yaml file path> <VNFD-NAME>\n')
output(
' vnf_create --vnfd-template <yaml file path> <VNFD-NAME>\n')
return None
if line.split()[0] in ['--vnfd-file', '--vnfd-template']:
file_path = line.split()[1]
vnfd = parse_tosca(file_path)
if jinja:
template = Template(str(vnfd))
print 'template jinja',
print "{}".format(template.render(net.values))
else: # --vnfd-name
vnfd_name = line.split()[1]
vnfd = VNFD[vnfd_name]
if vnfd:
vnf_name = line.split()[2]
if vnf_name in VNFS:
output('<VNF-NAME> already in use\n')
return None
VNFS.append(vnf_name)
net.addHost(vnf_name)
configure_network(net, vnfd, vnf_name)
configure_host(net, vnfd, vnf_name)
if vnfd['topology_template']['node_templates']['VDU1'][
'properties'].has_key('user_data'):
cloud_init(net, vnfd, vnf_name)
return None
return None
def vnffg_create(self, line, jinja=False):
"Creates vnffg from previously defined vnffgd or directly from template."
net = self.mn
#if len(line.split()) != 7:
# print 'problema e tamanho'
# print line.split()[0]
if len(line.split()) != 7 or line.split()[0] not in [
'--vnffgd-name', '--vnffgd-template'
] or line.split()[2] != '--vnf-mapping' or line.split(
)[4] != '--symmetrical':
output(
'''Use: vnffg-create --vnffgd-name <vnffgd-name> --vnf-mapping <vnf-mapping>
--symmetrical <boolean> <vnffg-name>\n''')
output(
''' vnffg-create --vnffgd-template <vnffgd-template> --vnf-mapping <vnf-mapping>
--symmetrical <boolean> <vnffg-name>\n''')
return None
if line.split()[0] == '--vnffgd-template':
file_path = line.split()[1]
vnffg = parse_tosca(file_path)
#print 'antes: ', vnffg
if jinja:
template = Template(str(vnffg))
#print 'template jinja',
#print "{}".format(template.render(net.values))
vnffg = yaml.load("{}".format(template.render(net.values)))
#print 'despues: ', vnffg
else: # --vnffg-name
vnffg_name = line.split()[1]
vnffg = VNFFGD[vnffg_name]
binds = read_binding(line.split()[3])
if vnffg:
vnffg_name = line.split()[6]
if vnffg_name in VNFFGS:
output('<VNFFG-NAME> already in use\n')
return None
#VNFFGS.append(vnffg_name)
configure_vnffg(net, vnffg, vnffg_name, binds)
return None
return None
def do_print(self, line):
"Prints a given line."
output(line + '\n')
return None
def vnffg_list(self, line):
"Lists all vnffgs created."
output('%s' % VNFFGS + '\n')
def configure_vnffg(net, vnffg, vnffg_name, binds):
"NFV Orchestration function."
criteria = vnffg['topology_template']['node_templates'][
'Forwarding_path1']['properties']['policy']['criteria']
path = vnffg['topology_template']['node_templates']['Forwarding_path1'][
'properties']['path'][0]
vnfs = vnffg['topology_template']['groups']['VNFFG1']['properties'][
'constituent_vnfs']
if vnfs[0] != binds[0]:
output('vnf-mapping <' + binds[0] + '> not defined in template\n')
return
if len(criteria) != 1:
for i in range(len(criteria)):
if criteria[i].has_key('network_src_port_id'):
port_id = criteria[i]['network_src_port_id']
elif criteria[i].has_key('ip_src_prefix'):
ip_src = criteria[i]['ip_src_prefix']
if not find_port(ip_src):
output('ip_src_prefix ,' + ip_src +
'> not exists in current environment\n')
return
ip_src = netaddr.IPNetwork(ip_src)
#ip_address_final = '%s/%s' % (ip_address.ip, ip_address.prefixlen)
elif criteria[i].has_key('ip_dst_prefix'):
ip_dst = criteria[i]['ip_dst_prefix']
if not find_port(ip_dst):
output('ip_dst_prefix ,' + ip_dst +
'> not exists in current environment\n')
return
ip_dst = netaddr.IPNetwork(ip_dst)
elif criteria[i].has_key('ip_proto'):
ip_proto = criteria[i]['ip_proto']
elif criteria[i].has_key('destination_port_range'):
port_range = criteria[i]['destination_port_range']
else:
if criteria[0].has_key('network_src_port_id'):
port_id = criteria[0]['network_src_port_id']
if criteria[0].has_key('ip_src_prefix'):
ip_src = criteria[0]['ip_src_prefix']
if not find_port(ip_src):
output('ip_src_prefix ,' + ip_src +
'> not exists in current environment\n')
return
if criteria[0].has_key('ip_dst_prefix'):
ip_dst = criteria[0]['ip_dst_prefix']
if not find_port(ip_dst):
output('ip_dst_prefix ,' + ip_dst +
'> not exists in current environment\n')
return
if criteria[0].has_key('ip_proto'):
ip_proto = criteria[0]['ip_proto']
if criteria[i].has_key('destination_port_range'):
port_range = criteria[0]['destination_port_range']
print 'vnfs0', binds[1], 'ip_src', ip_src, 'ip_dst', ip_dst
vnf = binds[1]
vnf = net.getNodeByName(vnf)
forwarder = path['forwarder']
port_dst = find_port2(ip_dst.ip)
port_vnf = find_port2(find_port3(forwarder, ip_src, ip_dst))
VNFFGS.append(vnffg_name)
print ip_src.ip, find_port2(
ip_src.ip), ip_dst.ip, port_dst, forwarder, port_vnf
if MULTSWITCHES:
#command = 'sudo ovs-ofctl mod-flows s192.168.1 ip,nw_src=192.168.120.1,actions=output:2,3'
command2 = "ovs-ofctl add-flow s192.168.1 priority=1,arp,actions=flood"
command = 'sudo ovs-ofctl mod-flows s192.168.1 ip,nw_src=%s,actions=output:%s,%s' % (
ip_src.ip, port_dst, port_vnf)
#command = 'sudo ovs-ofctl mod-flows s192.168.1 ip,nw_src=%s,actions=output:%s' % (ip_src.ip, port_vnf)
#command2 = 'sudo ovs-ofctl mod-flows s192.168.1 in_port=%s,actions=output:%s' % (port_vnf, port_dst)
#command3 = 'sudo ovs-ofctl mod-flows s192.168.1 arp,in_port="s192.168.1-eth4",vlan_tci=0x0000/0x1fff,dl_src=12:b9:d1:5d:26:5e,dl_dst=1e:29:c2:41:d5:02,arp_spa=192.168.120.2,arp_tpa=192.168.120.1,arp_op=2,actions=output:"s192.168.1-eth3"'
s2 = subprocess.check_output(command2, shell=True)
s = subprocess.check_output(command, shell=True)
#s3 = subprocess.check_output(command2, shell=True)
print s, s2
else:
vnf.cmdPrint(
'ip addr add %s/24 brd + dev %s-eth0' %
(netaddr.IPAddress(netaddr.IPNetwork(ip_src).first + 1), binds[1]))
vnf.cmdPrint(
'ip addr add %s/24 brd + dev %s-eth0' %
(netaddr.IPAddress(netaddr.IPNetwork(ip_dst).first + 1), binds[1]))
vnf.cmdPrint("echo 1 > /proc/sys/net/ipv4/ip_forward")
def vnf_list(self, line):
"Lists all vnfs created."
output('%s' % VNFS + '\n')
