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IPv6 support in nft method.

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This works for me but needs testing by others. Remember to specify a
::0/0 subnet or similar to route IPv6 through sshuttle.

I'm adding this to nft before nat since it is not sshuttle's default
method on Linux. Documentation updates may be required too.

This patch uses the ipaddress module, but that appears to be included
since Python 3.3.
This commit is contained in:
Scott Kuhl
2020-10-20 23:38:27 -04:00
parent ebf87d8f3b
commit 6d86e44fb4
3 changed files with 64 additions and 17 deletions
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10
tests/client/test_methods_nat.py
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@ -18,12 +18,22 @@ def test_get_supported_features():
def test_get_tcp_dstip():
sock = Mock()
sock.family = AF_INET
sock.getsockopt.return_value = struct.pack(
'!HHBBBB', socket.ntohs(AF_INET), 1024, 127, 0, 0, 1)
method = get_method('nat')
assert method.get_tcp_dstip(sock) == ('127.0.0.1', 1024)
assert sock.mock_calls == [call.getsockopt(0, 80, 16)]
sock = Mock()
sock.family = AF_INET6
sock.getsockopt.return_value = struct.pack(
'!HH4xBBBBBBBBBBBBBBBB', socket.ntohs(AF_INET6),
1024, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1)
method = get_method('nft')
assert method.get_tcp_dstip(sock) == ('::1', 1024)
assert sock.mock_calls == [call.getsockopt(41, 80, 64)]
def test_recv_udp():
sock = Mock()