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Add support for IPv6 remote hosts.

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Supported sshuttle commands for IPv6:

./sshuttle -r "IPv6:addr" 0.0.0.0/0 -vv
./sshuttle -r "[IPv6:addr]" 0.0.0.0/0 -vv
./sshuttle -r "[IPv6:addr]:22" 0.0.0.0/0 -vv

Technically "invalid" address/port formats, but they can still be parsed because they’re unambiguous, so these also work:

./sshuttle -r "IPv6:addr]" 0.0.0.0/0 -vv
./sshuttle -r "IPv6:addr]:" 0.0.0.0/0 -vv
./sshuttle -r "IPv6:addr]:22" 0.0.0.0/0 -vv
./sshuttle -r "[IPv6:addr" 0.0.0.0/0 -vv

(If you have a Mac with Back To My Mac, use dns-sd to discover the remote host's IPv6 address:
dns-sd -G v4v6 <machine name>.<member name>.members.mac.com )
This commit is contained in:
Christopher Bowns 2010-11-19 15:11:58 -08:00
parent ef71751846
commit 95c9b788a0
1 changed files with 23 additions and 4 deletions
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27
ssh.py
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@ -23,15 +23,33 @@ def empackage(z, filename):
def connect(ssh_cmd, rhostport, python):
main_exe = sys.argv[0]
l = (rhostport or '').split(':', 1)
rhost = l[0]
portl = []
if len(l) > 1:
portl = ['-p', str(int(l[1]))]
rhostIsIPv6 = False
if rhostport.count(':') > 1:
rhostIsIPv6 = True
if rhostport.count(']') or rhostport.count('['):
result = rhostport.split(']')
rhost = result[0].strip('[')
if len(result) > 1:
result[1] = result[1].strip(':')
if result[1] is not '':
portl = ['-p', str(int(result[1]))]
else: # can't disambiguate IPv6 colons and a port number. pass the hostname through.
rhost = rhostport
else: # IPv4
l = (rhostport or '').split(':', 1)
rhost = l[0]
if len(l) > 1:
portl = ['-p', str(int(l[1]))]
if rhost == '-':
rhost = None
ipv6flag = []
if rhostIsIPv6:
ipv6flag = ['-6']
z = zlib.compressobj(1)
content = readfile('assembler.py')
content2 = (empackage(z, 'helpers.py') +
@ -59,6 +77,7 @@ def connect(ssh_cmd, rhostport, python):
sshl = ['ssh']
argv = (sshl +
portl +
ipv6flag +
[rhost, '--', "'%s' -c '%s'" % (python, pyscript)])
(s1,s2) = socket.socketpair()
def setup():