def lldp_packet(dpid, port_no, dl_addr, ttl):
pkt = packet.Packet()
dst = lldp.LLDP_MAC_NEAREST_BRIDGE
src = dl_addr
ethertype = ETH_TYPE_LLDP
eth_pkt = ethernet.ethernet(dst, src, ethertype)
pkt.add_protocol(eth_pkt)
tlv_chassis_id = lldp.ChassisID(
subtype=lldp.ChassisID.SUB_LOCALLY_ASSIGNED,
chassis_id=(LLDPPacket.CHASSIS_ID_FMT %
dpid_to_str(dpid)).encode('ascii'))
tlv_port_id = lldp.PortID(subtype=lldp.PortID.SUB_PORT_COMPONENT,
port_id=struct.pack(LLDPPacket.PORT_ID_STR,
port_no))
tlv_ttl = lldp.TTL(ttl=ttl)
tlv_end = lldp.End()
tlvs = (tlv_chassis_id, tlv_port_id, tlv_ttl, tlv_end)
lldp_pkt = lldp.lldp(tlvs)
pkt.add_protocol(lldp_pkt)
pkt.serialize()
return pkt.data
def test_json(self):
chassis_id = lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=b'\x00\x01\x30\xf9\xad\xa0')
port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/1')
ttl = lldp.TTL(ttl=120)
port_desc = lldp.PortDescription(
port_description=b'Summit300-48-Port 1001\x00')
sys_name = lldp.SystemName(system_name=b'Summit300-48\x00')
sys_desc = lldp.SystemDescription(
system_description=b'Summit300-48 - Version 7.4e.1 (Build 5) ' +
b'by Release_Master 05/27/05 04:53:11\x00')
sys_cap = lldp.SystemCapabilities(system_cap=0x14, enabled_cap=0x14)
man_addr = lldp.ManagementAddress(addr_subtype=0x06,
addr=b'\x00\x01\x30\xf9\xad\xa0',
intf_subtype=0x02,
intf_num=1001,
oid='')
org_spec = lldp.OrganizationallySpecific(oui=b'\x00\x12\x0f',
subtype=0x02,
info=b'\x07\x01\x00')
end = lldp.End()
tlvs = (chassis_id, port_id, ttl, port_desc, sys_name, sys_desc,
sys_cap, man_addr, org_spec, end)
lldp1 = lldp.lldp(tlvs)
jsondict = lldp1.to_jsondict()
lldp2 = lldp.lldp.from_jsondict(jsondict['lldp'])
eq_(str(lldp1), str(lldp2))
def test_tlv(self):
tlv = lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=b'\x00\x04\x96\x1f\xa7\x26')
eq_(tlv.tlv_type, lldp.LLDP_TLV_CHASSIS_ID)
eq_(tlv.len, 7)
(typelen, ) = struct.unpack('!H', b'\x02\x07')
eq_(tlv.typelen, typelen)
def test_serialize(self):
pkt = packet.Packet()
dst = lldp.LLDP_MAC_NEAREST_BRIDGE
src = '00:04:96:1f:a7:26'
ethertype = ether.ETH_TYPE_LLDP
eth_pkt = ethernet.ethernet(dst, src, ethertype)
pkt.add_protocol(eth_pkt)
tlv_chassis_id = lldp.ChassisID(
subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=addrconv.mac.text_to_bin(src))
tlv_port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/3')
tlv_ttl = lldp.TTL(ttl=120)
tlv_end = lldp.End()
tlvs = (tlv_chassis_id, tlv_port_id, tlv_ttl, tlv_end)
lldp_pkt = lldp.lldp(tlvs)
pkt.add_protocol(lldp_pkt)
eq_(len(pkt.protocols), 2)
pkt.serialize()
# Note: If ethernet frame is less than 60 bytes length,
# ethernet.ethernet() appends padding to the payload.
# So, we splits the serialized data to compare.
data_len = len(self.data)
pkt_data_lldp = pkt.data[:data_len]
pkt_data_pad = pkt.data[data_len:]
eq_(b'\x00' * (60 - data_len), pkt_data_pad)
eq_(self.data, pkt_data_lldp)
def test_to_string(self):
chassis_id = lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=b'\x00\x04\x96\x1f\xa7\x26')
port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/3')
ttl = lldp.TTL(ttl=120)
end = lldp.End()
tlvs = (chassis_id, port_id, ttl, end)
lldp_pkt = lldp.lldp(tlvs)
chassis_id_values = {
'subtype': lldp.ChassisID.SUB_MAC_ADDRESS,
'chassis_id': b'\x00\x04\x96\x1f\xa7\x26',
'len': chassis_id.len,
'typelen': chassis_id.typelen
}
_ch_id_str = ','.join([
'%s=%s' % (k, repr(chassis_id_values[k]))
for k, v in inspect.getmembers(chassis_id)
if k in chassis_id_values
])
tlv_chassis_id_str = '%s(%s)' % (lldp.ChassisID.__name__, _ch_id_str)
port_id_values = {
'subtype': port_id.subtype,
'port_id': port_id.port_id,
'len': port_id.len,
'typelen': port_id.typelen
}
_port_id_str = ','.join([
'%s=%s' % (k, repr(port_id_values[k]))
for k, v in inspect.getmembers(port_id) if k in port_id_values
])
tlv_port_id_str = '%s(%s)' % (lldp.PortID.__name__, _port_id_str)
ttl_values = {'ttl': ttl.ttl, 'len': ttl.len, 'typelen': ttl.typelen}
_ttl_str = ','.join([
'%s=%s' % (k, repr(ttl_values[k]))
for k, v in inspect.getmembers(ttl) if k in ttl_values
])
tlv_ttl_str = '%s(%s)' % (lldp.TTL.__name__, _ttl_str)
end_values = {'len': end.len, 'typelen': end.typelen}
_end_str = ','.join([
'%s=%s' % (k, repr(end_values[k]))
for k, v in inspect.getmembers(end) if k in end_values
])
tlv_end_str = '%s(%s)' % (lldp.End.__name__, _end_str)
_tlvs_str = '(%s, %s, %s, %s)'
tlvs_str = _tlvs_str % (tlv_chassis_id_str, tlv_port_id_str,
tlv_ttl_str, tlv_end_str)
_lldp_str = '%s(tlvs=%s)'
lldp_str = _lldp_str % (lldp.lldp.__name__, tlvs_str)
eq_(str(lldp_pkt), lldp_str)
eq_(repr(lldp_pkt), lldp_str)
def test_serialize_without_ethernet(self):
tlv_chassis_id = lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=b'\x00\x04\x96\x1f\xa7\x26')
tlv_port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/3')
tlv_ttl = lldp.TTL(ttl=120)
tlv_end = lldp.End()
tlvs = (tlv_chassis_id, tlv_port_id, tlv_ttl, tlv_end)
lldp_pkt = lldp.lldp(tlvs)
eq_(lldp_pkt.serialize(None, None),
self.data[ethernet.ethernet._MIN_LEN:])
def test_json(self):
chassis_id = lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=b'\x00\x04\x96\x1f\xa7\x26')
port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/3')
ttl = lldp.TTL(ttl=120)
end = lldp.End()
tlvs = (chassis_id, port_id, ttl, end)
lldp1 = lldp.lldp(tlvs)
jsondict = lldp1.to_jsondict()
lldp2 = lldp.lldp.from_jsondict(jsondict['lldp'])
eq_(str(lldp1), str(lldp2))
def test_serialize(self):
pkt = packet.Packet()
dst = lldp.LLDP_MAC_NEAREST_BRIDGE
src = '00:01:30:f9:ad:a0'
ethertype = ether.ETH_TYPE_LLDP
eth_pkt = ethernet.ethernet(dst, src, ethertype)
pkt.add_protocol(eth_pkt)
tlv_chassis_id = lldp.ChassisID(
subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=addrconv.mac.text_to_bin(src))
tlv_port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/1')
tlv_ttl = lldp.TTL(ttl=120)
tlv_port_description = lldp.PortDescription(
port_description=b'Summit300-48-Port 1001\x00')
tlv_system_name = lldp.SystemName(system_name=b'Summit300-48\x00')
tlv_system_description = lldp.SystemDescription(
system_description=b'Summit300-48 - Version 7.4e.1 (Build 5) ' +
b'by Release_Master 05/27/05 04:53:11\x00')
tlv_system_capabilities = lldp.SystemCapabilities(system_cap=0x14,
enabled_cap=0x14)
tlv_management_address = lldp.ManagementAddress(
addr_subtype=0x06,
addr=b'\x00\x01\x30\xf9\xad\xa0',
intf_subtype=0x02,
intf_num=1001,
oid=b'')
tlv_organizationally_specific = lldp.OrganizationallySpecific(
oui=b'\x00\x12\x0f', subtype=0x02, info=b'\x07\x01\x00')
tlv_end = lldp.End()
tlvs = (tlv_chassis_id, tlv_port_id, tlv_ttl, tlv_port_description,
tlv_system_name, tlv_system_description,
tlv_system_capabilities, tlv_management_address,
tlv_organizationally_specific, tlv_end)
lldp_pkt = lldp.lldp(tlvs)
pkt.add_protocol(lldp_pkt)
eq_(len(pkt.protocols), 2)
pkt.serialize()
# self.data has many organizationally specific TLVs
data = six.binary_type(pkt.data[:-2])
eq_(data, self.data[:len(data)])
def lldp_beacon(eth_src,
chassis_id,
port_id,
ttl,
org_tlvs=None,
system_name=None,
port_descr=None):
"""Return an LLDP frame suitable for a host/access port.
Args:
eth_src (str): source Ethernet MAC address.
chassis_id (str): Chassis ID.
port_id (int): port ID,
TTL (int): TTL for payload.
org_tlvs (list): list of tuples of (OUI, subtype, info).
Returns:
ryu.lib.packet.ethernet: Ethernet packet with header.
"""
pkt = build_pkt_header(None, eth_src, lldp.LLDP_MAC_NEAREST_BRIDGE,
valve_of.ether.ETH_TYPE_LLDP)
tlvs = [
lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=addrconv.mac.text_to_bin(chassis_id)),
lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=str(port_id).encode('utf-8')),
lldp.TTL(ttl=ttl)
]
for tlv, info_name, info in ((lldp.SystemName, 'system_name', system_name),
(lldp.PortDescription, 'port_description',
port_descr)):
if info is not None:
info_args = {info_name: info.encode('UTF-8')}
tlvs.append(tlv(**info_args))
if org_tlvs is not None:
for tlv_oui, tlv_subtype, tlv_info in org_tlvs:
tlvs.append(
lldp.OrganizationallySpecific(oui=tlv_oui,
subtype=tlv_subtype,
info=tlv_info))
tlvs.append(lldp.End())
lldp_pkt = lldp.lldp(tlvs)
pkt.add_protocol(lldp_pkt)
pkt.serialize()
return pkt
def test_to_string(self):
chassis_id = lldp.ChassisID(subtype=lldp.ChassisID.SUB_MAC_ADDRESS,
chassis_id=b'\x00\x01\x30\xf9\xad\xa0')
port_id = lldp.PortID(subtype=lldp.PortID.SUB_INTERFACE_NAME,
port_id=b'1/1')
ttl = lldp.TTL(ttl=120)
port_desc = lldp.PortDescription(
port_description=b'Summit300-48-Port 1001\x00')
sys_name = lldp.SystemName(system_name=b'Summit300-48\x00')
sys_desc = lldp.SystemDescription(
system_description=b'Summit300-48 - Version 7.4e.1 (Build 5) ' +
b'by Release_Master 05/27/05 04:53:11\x00')
sys_cap = lldp.SystemCapabilities(system_cap=0x14, enabled_cap=0x14)
man_addr = lldp.ManagementAddress(addr_subtype=0x06,
addr=b'\x00\x01\x30\xf9\xad\xa0',
intf_subtype=0x02,
intf_num=1001,
oid='')
org_spec = lldp.OrganizationallySpecific(oui=b'\x00\x12\x0f',
subtype=0x02,
info=b'\x07\x01\x00')
end = lldp.End()
tlvs = (chassis_id, port_id, ttl, port_desc, sys_name, sys_desc,
sys_cap, man_addr, org_spec, end)
lldp_pkt = lldp.lldp(tlvs)
# ChassisID string
chassis_id_values = {
'subtype': lldp.ChassisID.SUB_MAC_ADDRESS,
'chassis_id': b'\x00\x01\x30\xf9\xad\xa0',
'len': chassis_id.len,
'typelen': chassis_id.typelen
}
_ch_id_str = ','.join([
'%s=%s' % (k, repr(chassis_id_values[k]))
for k, v in inspect.getmembers(chassis_id)
if k in chassis_id_values
])
tlv_chassis_id_str = '%s(%s)' % (lldp.ChassisID.__name__, _ch_id_str)
# PortID string
port_id_values = {
'subtype': port_id.subtype,
'port_id': port_id.port_id,
'len': port_id.len,
'typelen': port_id.typelen
}
_port_id_str = ','.join([
'%s=%s' % (k, repr(port_id_values[k]))
for k, v in inspect.getmembers(port_id) if k in port_id_values
])
tlv_port_id_str = '%s(%s)' % (lldp.PortID.__name__, _port_id_str)
# TTL string
ttl_values = {'ttl': ttl.ttl, 'len': ttl.len, 'typelen': ttl.typelen}
_ttl_str = ','.join([
'%s=%s' % (k, repr(ttl_values[k]))
for k, v in inspect.getmembers(ttl) if k in ttl_values
])
tlv_ttl_str = '%s(%s)' % (lldp.TTL.__name__, _ttl_str)
# PortDescription string
port_desc_values = {
'tlv_info': port_desc.tlv_info,
'len': port_desc.len,
'typelen': port_desc.typelen
}
_port_desc_str = ','.join([
'%s=%s' % (k, repr(port_desc_values[k]))
for k, v in inspect.getmembers(port_desc) if k in port_desc_values
])
tlv_port_desc_str = '%s(%s)' % (lldp.PortDescription.__name__,
_port_desc_str)
# SystemName string
sys_name_values = {
'tlv_info': sys_name.tlv_info,
'len': sys_name.len,
'typelen': sys_name.typelen
}
_system_name_str = ','.join([
'%s=%s' % (k, repr(sys_name_values[k]))
for k, v in inspect.getmembers(sys_name) if k in sys_name_values
])
tlv_system_name_str = '%s(%s)' % (lldp.SystemName.__name__,
_system_name_str)
# SystemDescription string
sys_desc_values = {
'tlv_info': sys_desc.tlv_info,
'len': sys_desc.len,
'typelen': sys_desc.typelen
}
_sys_desc_str = ','.join([
'%s=%s' % (k, repr(sys_desc_values[k]))
for k, v in inspect.getmembers(sys_desc) if k in sys_desc_values
])
tlv_sys_desc_str = '%s(%s)' % (lldp.SystemDescription.__name__,
_sys_desc_str)
# SystemCapabilities string
sys_cap_values = {
'system_cap': 0x14,
'enabled_cap': 0x14,
'len': sys_cap.len,
'typelen': sys_cap.typelen
}
_sys_cap_str = ','.join([
'%s=%s' % (k, repr(sys_cap_values[k]))
for k, v in inspect.getmembers(sys_cap) if k in sys_cap_values
])
tlv_sys_cap_str = '%s(%s)' % (lldp.SystemCapabilities.__name__,
_sys_cap_str)
# ManagementAddress string
man_addr_values = {
'addr_subtype': 0x06,
'addr': b'\x00\x01\x30\xf9\xad\xa0',
'addr_len': man_addr.addr_len,
'intf_subtype': 0x02,
'intf_num': 1001,
'oid': '',
'oid_len': man_addr.oid_len,
'len': man_addr.len,
'typelen': man_addr.typelen
}
_man_addr_str = ','.join([
'%s=%s' % (k, repr(man_addr_values[k]))
for k, v in inspect.getmembers(man_addr) if k in man_addr_values
])
tlv_man_addr_str = '%s(%s)' % (lldp.ManagementAddress.__name__,
_man_addr_str)
# OrganizationallySpecific string
org_spec_values = {
'oui': b'\x00\x12\x0f',
'subtype': 0x02,
'info': b'\x07\x01\x00',
'len': org_spec.len,
'typelen': org_spec.typelen
}
_org_spec_str = ','.join([
'%s=%s' % (k, repr(org_spec_values[k]))
for k, v in inspect.getmembers(org_spec) if k in org_spec_values
])
tlv_org_spec_str = '%s(%s)' % (lldp.OrganizationallySpecific.__name__,
_org_spec_str)
# End string
end_values = {'len': end.len, 'typelen': end.typelen}
_end_str = ','.join([
'%s=%s' % (k, repr(end_values[k]))
for k, v in inspect.getmembers(end) if k in end_values
])
tlv_end_str = '%s(%s)' % (lldp.End.__name__, _end_str)
# tlvs string
_tlvs_str = '(%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)'
tlvs_str = _tlvs_str % (
tlv_chassis_id_str, tlv_port_id_str, tlv_ttl_str,
tlv_port_desc_str, tlv_system_name_str, tlv_sys_desc_str,
tlv_sys_cap_str, tlv_man_addr_str, tlv_org_spec_str, tlv_end_str)
# lldp string
_lldp_str = '%s(tlvs=%s)'
lldp_str = _lldp_str % (lldp.lldp.__name__, tlvs_str)
eq_(str(lldp_pkt), lldp_str)
eq_(repr(lldp_pkt), lldp_str)