TashRouter: An AppleTalk Router

[treellama]

This is great, thanks for getting back to this!

 

[NJRoadfan]

Did anyone try this PR with an ImageWriter? https://github.com/lampmerchant/tashrouter/pull/2

This matches the behavior observed with a Shiva Fastpath 5 (at least from what I remember). Usenet posts state that the fix for the ImageWriter card was to always have a router send it NBP Lookups with DDP long packets which have the sender's source address in the header.

 

[fergycool]

I checked it out and it works fine for me. With the new "route_lkup_replies=True" parameter I am able to print from an EtherTalk connected Macintosh to an LocalTalk connected ImageWriter II just fine (good test out for my newly acquired color ribbons!).

At the risk of public humiliation but for anybody else who tries this and also does not read posts correctly. TapPort needs to be renamed to LinuxTapPort in your starting script! ;-)

 

[fergycool]

I spoke too soon. After that first print the IMII disappeared from the network. There are these errors:

Jul 11 13:05:14 wolfalice python3[18424]: Exception in thread Thread-13 (_run):
Jul 11 13:05:14 wolfalice python3[18424]: Traceback (most recent call last):
Jul 11 13:05:14 wolfalice python3[18424]: File "/usr/lib/python3.11/threading.py", line 1038, in _bootstrap_inner
Jul 11 13:05:14 wolfalice python3[18424]: self.run()
Jul 11 13:05:14 wolfalice python3[18424]: File "/usr/lib/python3.11/threading.py", line 975, in run
Jul 11 13:05:14 wolfalice python3[18424]: self._target(*self._args, **self._kwargs)
Jul 11 13:05:14 wolfalice python3[18424]: File "/home/chris/src/tashrouter1/tashrouter/service/name_information.py", line 326, in _run
Jul 11 13:05:14 wolfalice python3[18424]: router.route(Datagram(hop_count=0,
Jul 11 13:05:14 wolfalice python3[18424]: File "/home/chris/src/tashrouter1/tashrouter/router/router.py", line 155, in route
Jul 11 13:05:14 wolfalice python3[18424]: entry.port.unicast(datagram.destination_network, datagram.destination_node, datagram)
Jul 11 13:05:14 wolfalice python3[18424]: File "/home/chris/src/tashrouter1/tashrouter/port/localtalk/__init__.py", line 167, in unicast
Jul 11 13:05:14 wolfalice python3[18424]: self._send_frame_with_short_header(node, datagram)
Jul 11 13:05:14 wolfalice python3[18424]: File "/home/chris/src/tashrouter1/tashrouter/port/localtalk/__init__.py", line 152, in _send_frame_with_short_header
Jul 11 13:05:14 wolfalice python3[18424]: self.send_frame(bytes((destination_node, self.node, self.LLAP_APPLETALK_SHORT_HEADER)) + datagram.as_short_header_bytes())
Jul 11 13:05:14 wolfalice python3[18424]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 11 13:05:14 wolfalice python3[18424]: File "/home/chris/src/tashrouter1/tashrouter/datagram.py", line 125, in as_short_header_bytes
Jul 11 13:05:14 wolfalice python3[18424]: raise ValueError('invalid hop count %d, short-header datagrams may not have non-zero hop count' % self.hop_count)
Jul 11 13:05:14 wolfalice python3[18424]: ValueError: invalid hop count 1, short-header datagrams may not have non-zero hop count