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pim_dm
Commit 8fec9cb1 authored by Pedro Oliveira's avatar Pedro Oliveira
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log igmp and neighbor events

parent a890f223
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Showing with 199 additions and 41 deletions
InterfaceIGMP.py
View file @ 8fec9cb1
import socket
import struct
from ipaddress import IPv4Address
from ctypes import create_string_buffer, addressof
import netifaces
from Packet.ReceivedPacket import ReceivedPacket
from Interface import Interface
from ctypes import create_string_buffer, addressof
from ipaddress import IPv4Address
from utils import Version_1_Membership_Report, Version_2_Membership_Report, Leave_Group, Membership_Query
import subprocess
if not hasattr(socket, 'SO_BINDTODEVICE'):
socket.SO_BINDTODEVICE = 25
......@@ -24,7 +23,7 @@ class InterfaceIGMP(Interface):
struct.pack('HBBI', 0x6, 0, 0, 0x00000000),
]
def __init__(self, interface_name: str, vif_index:int):
def __init__(self, interface_name: str, vif_index: int):
# SEND SOCKET
snd_s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_IGMP)
......@@ -104,3 +103,8 @@ class InterfaceIGMP(Interface):
Leave_Group: receive_leave_group,
Membership_Query: receive_membership_query,
}
##################
def remove(self):
super().remove()
self.interface_state.remove()
InterfacePIM.py
View file @ 8fec9cb1
......@@ -13,6 +13,7 @@ from threading import Timer
from tree.globals import REFRESH_INTERVAL
import socket
import netifaces
import logging
class InterfacePim(Interface):
......@@ -20,9 +21,10 @@ class InterfacePim(Interface):
PROPAGATION_DELAY = 0.5
OVERRIDE_INTERNAL = 2.5
HELLO_PERIOD = 16
HELLO_PERIOD = 30
TRIGGERED_HELLO_PERIOD = 5
LOGGER = logging.getLogger('pim.Interface')
def __init__(self, interface_name: str, vif_index:int, state_refresh_capable:bool=False):
# generation id
......@@ -49,6 +51,7 @@ class InterfacePim(Interface):
self._had_neighbors = False
self.neighbors = {}
self.neighbors_lock = RWLockWrite()
self.interface_logger = logging.LoggerAdapter(InterfacePim.LOGGER, {'vif': vif_index, 'interfacename': interface_name})
# SOCKET
ip_interface = netifaces.ifaddresses(interface_name)[netifaces.AF_INET][0]['addr']
......@@ -103,6 +106,7 @@ class InterfacePim(Interface):
self.hello_timer.start()
def send_hello(self):
self.interface_logger.debug('Send Hello message')
self.hello_timer.cancel()
pim_payload = PacketPimHello()
......@@ -170,6 +174,7 @@ class InterfacePim(Interface):
def remove_neighbor(self, ip):
with self.neighbors_lock.genWlock():
del self.neighbors[ip]
self.interface_logger.debug("Remove neighbor: " + ip)
self.check_number_of_neighbors()
......
Neighbor.py
View file @ 8fec9cb1
......@@ -3,14 +3,25 @@ import time
from utils import HELLO_HOLD_TIME_NO_TIMEOUT, HELLO_HOLD_TIME_TIMEOUT, TYPE_CHECKING
from threading import Lock, RLock
import Main
import logging
if TYPE_CHECKING:
from InterfacePIM import InterfacePim
class Neighbor:
def __init__(self, contact_interface: "InterfacePim", ip, generation_id: int, hello_hold_time: int, state_refresh_capable:bool):
LOGGER = logging.getLogger('pim.Interface.Neighbor')
def __init__(self, contact_interface: "InterfacePim", ip, generation_id: int, hello_hold_time: int,
state_refresh_capable: bool):
if hello_hold_time == HELLO_HOLD_TIME_TIMEOUT:
raise Exception
logger_info = dict(contact_interface.interface_logger.extra)
logger_info['neighbor_ip'] = ip
self.neighbor_logger = logging.LoggerAdapter(self.LOGGER, logger_info)
self.neighbor_logger.debug('Monitoring new neighbor ' + ip + ' with GenerationID: ' + str(generation_id) +
'; HelloHoldTime: ' + str(hello_hold_time) + '; StateRefreshCapable: ' +
str(state_refresh_capable))
self.contact_interface = contact_interface
self.ip = ip
self.generation_id = generation_id
......@@ -35,7 +46,9 @@ class Neighbor:
if hello_hold_time == HELLO_HOLD_TIME_TIMEOUT:
self.remove()
self.neighbor_logger.debug('Detected neighbor removal of ' + self.ip)
elif hello_hold_time != HELLO_HOLD_TIME_NO_TIMEOUT:
self.neighbor_logger.debug('Neighbor Liveness Timer reseted of ' + self.ip)
self.neighbor_liveness_timer = Timer(hello_hold_time, self.remove)
self.neighbor_liveness_timer.start()
else:
......@@ -44,6 +57,7 @@ class Neighbor:
def set_generation_id(self, generation_id):
# neighbor restarted
if self.generation_id != generation_id:
self.neighbor_logger.debug('Detected reset of ' + self.ip + '... new GenerationID: ' + str(generation_id))
self.generation_id = generation_id
self.contact_interface.force_send_hello()
self.reset()
......@@ -64,7 +78,7 @@ class Neighbor:
print('HELLO TIMER EXPIRED... remove neighbor')
if self.neighbor_liveness_timer is not None:
self.neighbor_liveness_timer.cancel()
self.neighbor_logger.debug('Neighbor Liveness Timer expired of ' + self.ip)
self.contact_interface.remove_neighbor(self.ip)
# notify interfaces which have this neighbor as AssertWinner
......@@ -78,6 +92,9 @@ class Neighbor:
def receive_hello(self, generation_id, hello_hold_time, state_refresh_capable):
self.neighbor_logger.debug('Receive Hello message with HelloHoldTime: ' + str(hello_hold_time) +
'; GenerationID: ' + str(generation_id) + '; StateRefreshCapable: ' +
str(state_refresh_capable) + ' from neighbor ' + self.ip)
if hello_hold_time == HELLO_HOLD_TIME_TIMEOUT:
self.set_hello_hold_time(hello_hold_time)
else:
......@@ -87,7 +104,6 @@ class Neighbor:
if state_refresh_capable != self.state_refresh_capable:
self.state_refresh_capable = state_refresh_capable
def subscribe_nlt_expiration(self, tree_if):
with self.tree_interface_nlt_subscribers_lock:
if tree_if not in self.tree_interface_nlt_subscribers:
......
TestLogger.py
View file @ 8fec9cb1
......@@ -7,7 +7,7 @@ class RootFilter(logging.Filter):
Rather than use actual contextual information, we just use random
data in this demo.
"""
def __init__(self, router_name, tree=''):
def __init__(self, router_name):
super().__init__()
self.router_name = router_name
......@@ -19,4 +19,6 @@ class RootFilter(logging.Filter):
record.vif = ''
if not hasattr(record, 'interfacename'):
record.interfacename = ''
if not hasattr(record, 'neighbor_ip'):
record.neighbor_ip = ''
return True
igmp/GroupState.py
View file @ 8fec9cb1
import logging
from threading import Lock
from threading import Timer
from .wrapper import NoMembersPresent
from utils import GroupMembershipInterval, LastMemberQueryInterval, TYPE_CHECKING
from threading import Lock
from .wrapper import NoMembersPresent
if TYPE_CHECKING:
from .RouterState import RouterState
class GroupState(object):
LOGGER = logging.getLogger('pim.igmp.RouterState.GroupState')
def __init__(self, router_state: 'RouterState', group_ip: str):
#logger
extra_dict_logger = router_state.router_state_logger.extra.copy()
extra_dict_logger['tree'] = '(*,' + group_ip + ')'
self.group_state_logger = logging.LoggerAdapter(GroupState.LOGGER, extra_dict_logger)
#timers and state
self.router_state = router_state
self.group_ip = group_ip
self.state = NoMembersPresent
......@@ -25,6 +35,13 @@ class GroupState(object):
def print_state(self):
return self.state.print_state()
###########################################
# Set state
###########################################
def set_state(self, state):
self.state = state
self.group_state_logger.debug("change membership state to: " + state.print_state())
###########################################
# Set timers
###########################################
......@@ -130,3 +147,12 @@ class GroupState(object):
def has_members(self):
return self.state is not NoMembersPresent
def remove(self):
with self.multicast_interface_state_lock:
self.clear_retransmit_timer()
self.clear_timer()
self.clear_v1_host_timer()
for interface_state in self.multicast_interface_state:
interface_state.notify_igmp(has_members=False)
del self.multicast_interface_state[:]
igmp/RouterState.py
View file @ 8fec9cb1
from threading import Timer
import logging
from Packet.PacketIGMPHeader import PacketIGMPHeader
from Packet.ReceivedPacket import ReceivedPacket
from threading import Timer
from utils import Membership_Query, QueryResponseInterval, QueryInterval, OtherQuerierPresentInterval, TYPE_CHECKING
from RWLock.RWLock import RWLockWrite
from .querier.Querier import Querier
from .nonquerier.NonQuerier import NonQuerier
from .GroupState import GroupState
from RWLock.RWLock import RWLockWrite
if TYPE_CHECKING:
from InterfaceIGMP import InterfaceIGMP
class RouterState(object):
ROUTER_STATE_LOGGER = logging.getLogger('pim.igmp.RouterState')
def __init__(self, interface: 'InterfaceIGMP'):
#logger
logger_extra = dict()
logger_extra['vif'] = interface.vif_index
logger_extra['interfacename'] = interface.interface_name
self.router_state_logger = logging.LoggerAdapter(RouterState.ROUTER_STATE_LOGGER, logger_extra)
# interface of the router connected to the network
self.interface = interface
......@@ -75,8 +85,10 @@ class RouterState(object):
def change_interface_state(self, querier: bool):
if querier:
self.interface_state = Querier
self.router_state_logger.debug('change querier state to -> Querier')
else:
self.interface_state = NonQuerier
self.router_state_logger.debug('change querier state to -> NonQuerier')
############################################
# group state methods
......@@ -125,4 +137,8 @@ class RouterState(object):
#if igmp_group != "0.0.0.0":
max_response_time = packet.payload.max_resp_time
#self.group_state[igmp_group].receive_group_specific_query(max_response_time)
self.get_group_state(igmp_group).receive_group_specific_query(max_response_time)
\ No newline at end of file
self.get_group_state(igmp_group).receive_group_specific_query(max_response_time)
def remove(self):
for group in self.group_state.values():
group.remove()
\ No newline at end of file
igmp/nonquerier/CheckingMembership.py
View file @ 8fec9cb1
from utils import TYPE_CHECKING
from ..wrapper import NoMembersPresent
from ..wrapper import MembersPresent
from utils import TYPE_CHECKING
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.state = NoMembersPresent
group_state.group_state_logger.debug('NonQuerier CheckingMembership: group_membership_timeout')
group_state.set_state(NoMembersPresent)
# NOTIFY ROUTING - !!!!
group_state.notify_routing_remove()
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier CheckingMembership: group_membership_v1_timeout')
# do nothing
return
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier CheckingMembership: retransmit_timeout')
# do nothing
return
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier CheckingMembership: receive_v1_membership_report')
receive_v2_membership_report(group_state)
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier CheckingMembership: receive_v2_membership_report')
group_state.set_timer()
group_state.state = MembersPresent
group_state.set_state(MembersPresent)
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier CheckingMembership: receive_leave_group')
# do nothing
return
def receive_group_specific_query(group_state: 'GroupState', max_response_time: int):
group_state.group_state_logger.debug('NonQuerier CheckingMembership: receive_group_specific_query')
# do nothing
return
igmp/nonquerier/MembersPresent.py
View file @ 8fec9cb1
from utils import TYPE_CHECKING
from ..wrapper import NoMembersPresent
from ..wrapper import CheckingMembership
from utils import TYPE_CHECKING
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.state = NoMembersPresent
group_state.group_state_logger.debug('NonQuerier MembersPresent: group_membership_timeout')
group_state.set_state(NoMembersPresent)
# NOTIFY ROUTING - !!!!
group_state.notify_routing_remove()
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier MembersPresent: group_membership_v1_timeout')
# do nothing
return
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier MembersPresent: retransmit_timeout')
# do nothing
return
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier MembersPresent: receive_v1_membership_report')
receive_v2_membership_report(group_state)
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier MembersPresent: receive_v2_membership_report')
group_state.set_timer()
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier MembersPresent: receive_leave_group')
# do nothing
return
def receive_group_specific_query(group_state: 'GroupState', max_response_time: int):
group_state.group_state_logger.debug('NonQuerier MembersPresent: receive_group_specific_query')
group_state.set_timer(alternative=True, max_response_time=max_response_time)
group_state.state = CheckingMembership
group_state.set_state(CheckingMembership)
igmp/nonquerier/NoMembersPresent.py
View file @ 8fec9cb1
from ..wrapper import MembersPresent
from utils import TYPE_CHECKING
from ..wrapper import MembersPresent
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: group_membership_timeout')
# do nothing
return
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: group_membership_v1_timeout')
# do nothing
return
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: retransmit_timeout')
# do nothing
return
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: receive_v1_membership_report')
receive_v2_membership_report(group_state)
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: receive_v2_membership_report')
group_state.set_timer()
group_state.state = MembersPresent
group_state.set_state(MembersPresent)
# NOTIFY ROUTING + !!!!
group_state.notify_routing_add()
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: receive_leave_group')
# do nothing
return
def receive_group_specific_query(group_state: 'GroupState', max_response_time: int):
group_state.group_state_logger.debug('NonQuerier NoMembersPresent: receive_group_specific_query')
# do nothing
return
igmp/nonquerier/NonQuerier.py
View file @ 8fec9cb1
from ipaddress import IPv4Address
from utils import Membership_Query, QueryResponseInterval, LastMemberQueryCount, TYPE_CHECKING
from Packet.PacketIGMPHeader import PacketIGMPHeader
from Packet.ReceivedPacket import ReceivedPacket
from . import NoMembersPresent, MembersPresent, CheckingMembership
from ipaddress import IPv4Address
if TYPE_CHECKING:
from ..RouterState import RouterState
......@@ -12,11 +12,13 @@ class NonQuerier:
@staticmethod
def general_query_timeout(router_state: 'RouterState'):
router_state.router_state_logger.debug('NonQuerier state: general_query_timeout')
# do nothing
return
@staticmethod
def other_querier_present_timeout(router_state: 'RouterState'):
router_state.router_state_logger.debug('NonQuerier state: other_querier_present_timeout')
#change state to Querier
router_state.change_interface_state(querier=True)
......@@ -29,6 +31,7 @@ class NonQuerier:
@staticmethod
def receive_query(router_state: 'RouterState', packet: ReceivedPacket):
router_state.router_state_logger.debug('NonQuerier state: receive_query')
source_ip = packet.ip_header.ip_src
# if source ip of membership query not lower than the ip of the received interface => ignore
......
igmp/querier/CheckingMembership.py
View file @ 8fec9cb1
from Packet.PacketIGMPHeader import PacketIGMPHeader
from ..wrapper import NoMembersPresent, MembersPresent, Version1MembersPresent
from utils import Membership_Query, LastMemberQueryInterval, TYPE_CHECKING
from ..wrapper import NoMembersPresent, MembersPresent, Version1MembersPresent
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier CheckingMembership: group_membership_timeout')
group_state.clear_retransmit_timer()
group_state.state = NoMembersPresent
group_state.set_state(NoMembersPresent)
# NOTIFY ROUTING - !!!!
group_state.notify_routing_remove()
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier CheckingMembership: group_membership_v1_timeout')
# do nothing
return
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier CheckingMembership: retransmit_timeout')
group_addr = group_state.group_ip
packet = PacketIGMPHeader(type=Membership_Query, max_resp_time=LastMemberQueryInterval*10, group_address=group_addr)
group_state.router_state.send(data=packet.bytes(), address=group_addr)
......@@ -27,21 +30,25 @@ def retransmit_timeout(group_state: 'GroupState'):
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier CheckingMembership: receive_v1_membership_report')
group_state.set_timer()
group_state.set_v1_host_timer()
group_state.state = Version1MembersPresent
group_state.set_state(Version1MembersPresent)
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier CheckingMembership: receive_v2_membership_report')
group_state.set_timer()
group_state.state = MembersPresent
group_state.set_state(MembersPresent)
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier CheckingMembership: receive_leave_group')
# do nothing
return
def receive_group_specific_query(group_state: 'GroupState', max_response_time: int):
group_state.group_state_logger.debug('Querier CheckingMembership: receive_group_specific_query')
# do nothing
return
igmp/querier/MembersPresent.py
View file @ 8fec9cb1
from Packet.PacketIGMPHeader import PacketIGMPHeader
from ..wrapper import Version1MembersPresent, CheckingMembership, NoMembersPresent
from utils import Membership_Query, LastMemberQueryInterval, TYPE_CHECKING
from ..wrapper import Version1MembersPresent, CheckingMembership, NoMembersPresent
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.state = NoMembersPresent
group_state.group_state_logger.debug('Querier MembersPresent: group_membership_timeout')
group_state.set_state(NoMembersPresent)
# NOTIFY ROUTING - !!!!
group_state.notify_routing_remove()
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier MembersPresent: group_membership_v1_timeout')
# do nothing
return
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier MembersPresent: retransmit_timeout')
# do nothing
return
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier MembersPresent: receive_v1_membership_report')
group_state.set_timer()
group_state.set_v1_host_timer()
group_state.state = Version1MembersPresent
group_state.set_state(Version1MembersPresent)
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier MembersPresent: receive_v2_membership_report')
group_state.set_timer()
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier MembersPresent: receive_leave_group')
group_ip = group_state.group_ip
group_state.set_timer(alternative=True)
......@@ -41,9 +47,10 @@ def receive_leave_group(group_state: 'GroupState'):
packet = PacketIGMPHeader(type=Membership_Query, max_resp_time=LastMemberQueryInterval*10, group_address=group_ip)
group_state.router_state.send(data=packet.bytes(), address=group_ip)
group_state.state = CheckingMembership
group_state.set_state(CheckingMembership)
def receive_group_specific_query(group_state: 'GroupState', max_response_time):
group_state.group_state_logger.debug('Querier MembersPresent: receive_group_specific_query')
# do nothing
return
igmp/querier/NoMembersPresent.py
View file @ 8fec9cb1
from utils import TYPE_CHECKING
from ..wrapper import MembersPresent
from ..wrapper import Version1MembersPresent
from utils import TYPE_CHECKING
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier NoMembersPresent: group_membership_timeout')
# do nothing
return
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier NoMembersPresent: group_membership_v1_timeout')
# do nothing
return
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier NoMembersPresent: retransmit_timeout')
# do nothing
return
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier NoMembersPresent: receive_v1_membership_report')
group_state.set_timer()
group_state.set_v1_host_timer()
group_state.state = Version1MembersPresent
group_state.set_state(Version1MembersPresent)
# NOTIFY ROUTING + !!!!
group_state.notify_routing_add()
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier NoMembersPresent: receive_v2_membership_report')
group_state.set_timer()
group_state.state = MembersPresent
group_state.set_state(MembersPresent)
# NOTIFY ROUTING + !!!!
group_state.notify_routing_add()
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier NoMembersPresent: receive_leave_group')
# do nothing
return
def receive_group_specific_query(group_state: 'GroupState', max_response_time: int):
group_state.group_state_logger.debug('Querier NoMembersPresent: receive_group_specific_query')
# do nothing
return
igmp/querier/Querier.py
View file @ 8fec9cb1
from ipaddress import IPv4Address
from utils import TYPE_CHECKING
from utils import Membership_Query, QueryResponseInterval, LastMemberQueryCount, LastMemberQueryInterval
from Packet.PacketIGMPHeader import PacketIGMPHeader
from Packet.ReceivedPacket import ReceivedPacket
from utils import Membership_Query, QueryResponseInterval, LastMemberQueryCount, LastMemberQueryInterval
from . import CheckingMembership, MembersPresent, Version1MembersPresent, NoMembersPresent
from ipaddress import IPv4Address
from utils import TYPE_CHECKING
if TYPE_CHECKING:
from ..RouterState import RouterState
......@@ -12,6 +14,7 @@ if TYPE_CHECKING:
class Querier:
@staticmethod
def general_query_timeout(router_state: 'RouterState'):
router_state.router_state_logger.debug('Querier state: general_query_timeout')
# send general query
packet = PacketIGMPHeader(type=Membership_Query, max_resp_time=QueryResponseInterval*10)
router_state.interface.send(packet.bytes())
......@@ -21,11 +24,13 @@ class Querier:
@staticmethod
def other_querier_present_timeout(router_state: 'RouterState'):
router_state.router_state_logger.debug('Querier state: other_querier_present_timeout')
# do nothing
return
@staticmethod
def receive_query(router_state: 'RouterState', packet: ReceivedPacket):
router_state.router_state_logger.debug('Querier state: receive_query')
source_ip = packet.ip_header.ip_src
# if source ip of membership query not lower than the ip of the received interface => ignore
......
igmp/querier/Version1MembersPresent.py
View file @ 8fec9cb1
from utils import TYPE_CHECKING
from ..wrapper import NoMembersPresent
from ..wrapper import MembersPresent
from utils import TYPE_CHECKING
if TYPE_CHECKING:
from ..GroupState import GroupState
def group_membership_timeout(group_state: 'GroupState'):
group_state.state = NoMembersPresent
group_state.group_state_logger.debug('Querier Version1MembersPresent: group_membership_timeout')
group_state.set_state(NoMembersPresent)
# NOTIFY ROUTING - !!!!
group_state.notify_routing_remove()
def group_membership_v1_timeout(group_state: 'GroupState'):
group_state.state = MembersPresent
group_state.group_state_logger.debug('Querier Version1MembersPresent: group_membership_v1_timeout')
group_state.set_state(MembersPresent)
def retransmit_timeout(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier Version1MembersPresent: retransmit_timeout')
# do nothing
return
def receive_v1_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier Version1MembersPresent: receive_v1_membership_report')
group_state.set_timer()
group_state.set_v1_host_timer()
def receive_v2_membership_report(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier Version1MembersPresent: receive_v2_membership_report')
group_state.set_timer()
def receive_leave_group(group_state: 'GroupState'):
group_state.group_state_logger.debug('Querier Version1MembersPresent: receive_leave_group')
# do nothing
return
def receive_group_specific_query(group_state: 'GroupState', max_response_time: int):
group_state.group_state_logger.debug('Querier Version1MembersPresent: receive_group_specific_query')
# do nothing
return
tree/KernelEntry.py
View file @ 8fec9cb1
......@@ -23,6 +23,7 @@ class KernelEntry:
#next_hop = UnicastRouting.get_route(source_ip)["gateway"]
#self.rpf_node = source_ip if next_hop is None else next_hop
'''
next_hop = UnicastRouting.get_route(source_ip)["gateway"]
multipaths = UnicastRouting.get_route(source_ip)["multipath"]
......@@ -35,6 +36,21 @@ class KernelEntry:
break
else:
self.rpf_node = m["gateway"]
'''
unicast_route = UnicastRouting.get_route(source_ip)
next_hop = unicast_route["gateway"]
multipaths = unicast_route["multipath"]
self.rpf_node = next_hop if next_hop is not None else source_ip
import ipaddress
highest_ip = ipaddress.ip_address("0.0.0.0")
for m in multipaths:
if m["gateway"] is None:
self.rpf_node = source_ip
break
elif ipaddress.ip_address(m["gateway"]) > highest_ip:
highest_ip = ipaddress.ip_address(m["gateway"])
self.rpf_node = m["gateway"]
print("RPF_NODE:", UnicastRouting.get_route(source_ip))
print(self.rpf_node == source_ip)
......@@ -167,6 +183,7 @@ class KernelEntry:
def network_update(self):
# TODO TALVEZ OUTRO LOCK PARA BLOQUEAR ENTRADA DE PACOTES
with self.CHANGE_STATE_LOCK:
'''
next_hop = UnicastRouting.get_route(self.source_ip)["gateway"]
multipaths = UnicastRouting.get_route(self.source_ip)["multipath"]
......@@ -179,6 +196,21 @@ class KernelEntry:
break
else:
rpf_node = m["gateway"]
'''
unicast_route = UnicastRouting.get_route(self.source_ip)
next_hop = unicast_route["gateway"]
multipaths = unicast_route["multipath"]
rpf_node = next_hop if next_hop is not None else self.source_ip
import ipaddress
highest_ip = ipaddress.ip_address("0.0.0.0")
for m in multipaths:
if m["gateway"] is None:
rpf_node = self.source_ip
break
elif ipaddress.ip_address(m["gateway"]) > highest_ip:
highest_ip = ipaddress.ip_address(m["gateway"])
rpf_node = m["gateway"]
print("RPF_NODE:", UnicastRouting.get_route(self.source_ip))
......
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