Opened 7 years ago

Closed 7 years ago

#54447 closed defect (wontfix)

TunTap block in GNURadio

Reported by: vamsi765 Owned by: michaelld (Michael Dickens)
Priority: Normal Milestone:
Component: ports Version: 2.4.1
Keywords: Cc:
Port: gnuradio tuntaposx

Description

I get the following error when I have tun tap_pdu block in grc. The error persists even after I install tuntaposx port (and restart the computer). 

Traceback (most recent call last):
  File "gen_sink.py", line 58, in <module>
    main()
  File "gen_sink.py", line 47, in main
    tb = top_block_cls()
  File "gen_sink.py", line 30, in __init__
    self.blocks_tuntap_pdu_0 = blocks.tuntap_pdu('tap0', 10000, False)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gnuradio/blocks/blocks_swig6.py", line 1042, in make
    return _blocks_swig6.tuntap_pdu_make(dev, MTU, istunflag)
RuntimeError: tuntap_pdu not implemented on this platform

Change History (2)

comment:1 Changed 7 years ago by mf2k (Frank Schima)

Cc: michaelld removed
Keywords: GNURadio TunTap removed
Owner: set to michaelld
Port: gnuradio added; gnuradio-devel removed
Status: new → assigned

comment:2 Changed 7 years ago by michaelld (Michael Dickens)

Resolution: → wontfix
Status: assigned → closed

If you review the source code ​https://github.com/gnuradio/gnuradio/blob/master/gr-blocks/lib/tuntap_pdu_impl.cc#L51 , you'll see that the tuntap block is Linux-only. Doesn't matter if the port tuntaposx is installed or not. Given that tuntaposx installs just an ABI (libraries etc) and no API (headers), it's not clear to me how one could use it for this block.

If you want to see a tuntap block on macOS / Mac OS X, I'd advise you to open an issue on the GR github tracker: ​https://github.com/gnuradio/gnuradio/issues . This is not the place for enhancement requests for GR, just MacPorts, so I'm closing this ticket as "wontfix". Even then, I'm not sure how easy or difficult it will be to augment the block to allow for tuntap on OSX, but I'd be willing to give it a go once the GR-powers-that-be bless the effort.

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