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Added detection and logging of multicast echoes never arriving on AutoInterface system interfaces. Implements #905.

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Mark Qvist 2025-11-01 14:51:50 +01:00
commit 25a73e6ef9
1 changed files with 11 additions and 3 deletions
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14
RNS/Interfaces/AutoInterface.py
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@ -125,6 +125,7 @@ class AutoInterface(Interface):
self.adopted_interfaces = {}
self.interface_servers = {}
self.multicast_echoes = {}
self.initial_echoes = {}
self.timed_out_interfaces = {}
self.spawned_interfaces = {}
self.write_lock = threading.Lock()
@ -412,9 +413,10 @@ class AutoInterface(Interface):
RNS.log("Could not get device information while updating link-local addresses for "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
# Check multicast echo timeouts
last_multicast_echo = 0
if ifname in self.multicast_echoes:
last_multicast_echo = self.multicast_echoes[ifname]
last_multicast_echo = 0
multicast_echo_received = False
if ifname in self.multicast_echoes: last_multicast_echo = self.multicast_echoes[ifname]
if ifname in self.initial_echoes: multicast_echo_received = True
if now - last_multicast_echo > self.multicast_echo_timeout:
if ifname in self.timed_out_interfaces and self.timed_out_interfaces[ifname] == False:
@ -426,6 +428,11 @@ class AutoInterface(Interface):
self.carrier_changed = True
RNS.log(str(self)+" Carrier recovered on "+str(ifname), RNS.LOG_WARNING)
self.timed_out_interfaces[ifname] = False
if not multicast_echo_received:
RNS.log(f"{self} No multicast echoes received on {ifname}. The networking hardware or a firewall may be blocking multicast traffic.", RNS.LOG_ERROR)
# else:
# RNS.log(f"{self} Initial multicast echo on {ifname} received {RNS.prettytime(time.time()-self.initial_echoes[ifname])} ago.", RNS.LOG_DEBUG)
def announce_handler(self, ifname):
@ -464,6 +471,7 @@ class AutoInterface(Interface):
if ifname != None:
self.multicast_echoes[ifname] = time.time()
if not ifname in self.initial_echoes: self.initial_echoes[ifname] = time.time()
else:
RNS.log(str(self)+" received multicast echo on unexpected interface "+str(ifname), RNS.LOG_WARNING)