Avery Pennarun
d435c41bdb
stdin and stdout have different fds, so make SockWrapper take *two* socks.
...
We'll need this when we have a SockWrapper pointing at a Mux on a subprocess
pipe.
2010-05-01 23:32:30 -04:00
Avery Pennarun
5f0bfb5d9e
Basic implementation of a multiplex protocol - client side only.
...
Currently the 'server' is just a pipe to run 'hd' (hexdump) for looking at
the client-side results. Lame, but true.
2010-05-01 23:14:42 -04:00
Avery Pennarun
9f514d7a15
Smarter listenport selection.
...
Now if we aren't given an explicit port, we always initiate the port search
at 12300 and count upward looking for an available port.
Normally the kernel will assign us a random port, but that's not ideal
in our case because we'd like to use the same port numbers whenever
possible; that avoids piling up crap inside iptables in the (hopefully
unlikely) event that we die without cleaning up correctly.
2010-05-01 21:50:43 -04:00
Avery Pennarun
ad459e2918
iptables.py: completely replace ipt script.
...
Doing it in python instead of shell makes the code a bit less error prone.
Plus we can parse the iptables output and avoid triggering iptables errors.
2010-05-01 21:34:05 -04:00
Avery Pennarun
8278dcfb5d
Parse options correctly; call ./ipt automatically.
2010-05-01 21:14:19 -04:00
Avery Pennarun
550048370e
Move some code that'll be useful for the server into ssnet.py.
2010-05-01 20:48:11 -04:00
Avery Pennarun
3766d4d506
Don't "import * from socket".
2010-05-01 20:26:16 -04:00
Avery Pennarun
651b945299
Prevent loopbacks caused by telnetting to the transproxy port directly.
2010-05-01 20:20:54 -04:00
Avery Pennarun
dc643ccdc4
Clean up log messages slightly.
2010-05-01 20:14:17 -04:00
Avery Pennarun
72ed385b7f
Really basic transproxying on localhost.
...
When regenerating outgoing connections, we set TTL=42 to prevent re-proxying
of requests. That's a little hacky, but at least it avoids infinite loops.
2010-05-01 20:03:50 -04:00
Avery Pennarun
a818105dfe
client now listens on a socket and gets SO_ORIGINAL_DST correctly.
2010-05-01 18:03:45 -04:00
Avery Pennarun
f84b87d7eb
ipt: example script for how to set up an iptables transproxy.
2010-05-01 17:15:18 -04:00
Avery Pennarun
2f3c86e962
Initial commit.
...
Importing options.py, ssh.py, and LICENSE from the bup project.
2010-05-01 16:15:37 -04:00
