MacOS method tproxy crashes

[piotrskowronski]

$ sshuttle --method tproxy --dns --remote lx 0/0 --exclude lx Traceback (most recent call last): File "/opt/local/bin/sshuttle", line 11, in load_entry_point('sshuttle==0.78.5', 'console_scripts', 'sshuttle')() File "/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/sshuttle/cmdline.py", line 82, in main opt.sudo_pythonpath) File "/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/sshuttle/client.py", line 772, in main fw.method.setup_tcp_listener(tcp_listener) File "/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/sshuttle/methods/tproxy.py", line 143, in setup_tcp_listener tcp_listener.setsockopt(socket.SOL_IP, IP_TRANSPARENT, 1) File "/opt/local/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/sshuttle/client.py", line 124, in setsockopt self.v6.setsockopt(level, optname, value)

sshuttle installed via mac ports. OS version High Sierra.

[brianmay]

This isn't actually a bug, tproxy is a Linux specific interface. OSX doesn't have it.

Possibly the documentation could be more clear on this however. Pull requests welcome.

[piotrskowronski]

Hi, What I could do is to implement a guard showing a clear error message when using this option on non Linux OS. Cheers,

[brianmay]

That sounds like a good idea also.

[skuhl]

This error message has been improved for a while. It now displays something like:

fw: fatal: The tproxy method is not supported on this machine. Check that the appropriate programs are in your PATH.
c : fatal: ['/usr/bin/sudo', '-p', ... ] returned 99