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Fix: Handle IPv6 Stack Unavailability in Traceroute Functionality (Generated by Ana - AI SDE) #11

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Fix: Handle IPv6 Stack Unavailability in Traceroute Functionality (Generated by Ana - AI SDE) #11

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25 changes: 14 additions & 11 deletions connvitals/traceroute.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,17 +39,20 @@ def __init__(self, host:utils.Host, ID:int, maxHops:int):
self.maxHops = maxHops

# A bunch of stuff needs to be tweaked if we're using IPv6
if host.family is socket.AF_INET6:
# BTW, this doesn't actually work. The RFCs for IPv6 don't define
# the behaviour of raw sockets - which are heavily utilized by
# `connvitals`. One of these days, I'll have to implement it using
# raw ethernet frames ...

self.receiver = socket.socket(family=host.family,
type=socket.SOCK_RAW,
proto=socket.IPPROTO_ICMPV6)
self.setTTL = self.setIPv6TTL
self.isMyTraceResponse = self.isMyIPv6TraceResponse
if host.family is socket.AF_INET6:
if socket.has_ipv6:
# BTW, this doesn't actually work. The RFCs for IPv6 don't define
# the behaviour of raw sockets - which are heavily utilized by
# `connvitals`. One of these days, I'll have to implement it using
# raw ethernet frames ...

self.receiver = socket.socket(family=host.family,
type=socket.SOCK_RAW,
proto=socket.IPPROTO_ICMPV6)
self.setTTL = self.setIPv6TTL
self.isMyTraceResponse = self.isMyIPv6TraceResponse
else:
raise EnvironmentError("IPv6 stack is not available on this system.")

else:
self.receiver = socket.socket(family=host.family,
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