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fix(tunnel): refuse 192.0.0.0/24 and 6to4 literals on python before 3.11.10

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ipaddress.is_global reports these ranges as global before 3.11.10, so connect_public dialled them on the macOS and Windows CI runners.
This commit is contained in:
imSp4rky
2026-10-27 13:54:18 -06:00
parent 9f86464826
commit 88f9af2af6
1 changed files with 4 additions and 1 deletions
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unshackle/core/tunnel.py
+4 -1
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@@ -54,6 +54,8 @@ LOCAL_NETWORKS = tuple(
)
)
NAT64 = (ipaddress.ip_network("64:ff9b::/96"), ipaddress.ip_network("64:ff9b:1::/48"))
# is_global counts these as global before Python 3.11.10; drop once requires-python is >=3.11.10
NOT_GLOBAL = (ipaddress.ip_network("192.0.0.0/24"), ipaddress.ip_network("2002::/16"))
MAX_TUNNELS = 4
MAX_STREAMS = 256
CHUNK = 65536
@@ -326,7 +328,8 @@ def is_local_ip(address: str) -> bool:
def is_public_ip(address: str) -> bool:
return (ip := parse_ip(address)) is not None and ip.is_global and not is_local_ip(address)
ip = parse_ip(address)
return ip is not None and ip.is_global and not any(ip in n for n in NOT_GLOBAL) and not is_local_ip(address)
def is_ip_literal(host: str) -> bool: