Simon Rozman
e06a8f8f9f
wintun: Make two-step slicing a one step
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Stop relying to Go compiler optimizations and calculate the end offset
directly.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-22 16:11:33 +01:00
Simon Rozman
ac4944a708
wintun: Write exchange buffer increased back to 1MiB
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 20:13:33 +01:00
Simon Rozman
2491f9d454
wintun: Migrate from unsafe buffer handling to encoding/binary
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 20:10:24 +01:00
Simon Rozman
8091c6474a
wintun: Adopt new packet data alignment
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 19:56:10 +01:00
Simon Rozman
040da43889
wintun: Cleanup
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 18:38:18 +01:00
Simon Rozman
b7025b5627
wintun: Add TUN device locking
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In case reading from TUN device detected TUN device was closed, it
closed the file handle and set tunFile to nil. The tunFile is
automatically reopened on retry, but... If another packet comes in the
WireGuard calls Write() method. With tunFile set to nil, this will
cause access violation.
Therefore, locking was introduced.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 13:12:08 +01:00
Simon Rozman
6581cfb885
wintun: Move exchange buffer in separate struct on heap
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This allows buffer alignment and keeps it together with its meta-data.
Furthermore, the write buffer has been reduced - as long as we flush
after _every_ write, we don't need a 1MiB write buffer.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 11:41:37 +01:00
Simon Rozman
4863089120
wintun: Switch to dynamic packet sizes
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-19 18:50:42 +01:00
Jason A. Donenfeld
42c6d0e261
Change package path
2019-02-18 05:11:39 +01:00
Simon Rozman
b719a09a26
wintun: Auto-calculate TUN exchange buffer size
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 15:21:24 +01:00
Simon Rozman
f05f52637f
wintun: Simplify Read method()
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 14:31:05 +01:00
Simon Rozman
713477cfb1
wintun: Make constants private and adopt Go recommended case
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 08:55:23 +01:00
Simon Rozman
5981d5cacf
wintun: Check for user close in read loop regardless the load
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Do the WaitForSingleObject() always to provide high-load responsiveness.
Reorder events so TUN_SIGNAL_CLOSE has priority over
TUN_SIGNAL_DATA_AVAIL, to provide high-load responsiveness at all.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 08:48:35 +01:00
Simon Rozman
b13739ada2
wintun: Adjust tunRWQueue.left member to match Wintun driver
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 07:32:12 +01:00
Simon Rozman
d87cbeeb2f
wintun: Detect if a foreign interface with the same name exists
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 22:02:51 +01:00
Jason A. Donenfeld
c4b43e35a7
wintun: add FlushInterface stub
2019-02-07 18:24:28 +01:00
Jason A. Donenfeld
ea59177f1c
wintun: Introduce new package for obscuring Windows bits
2019-02-07 04:39:59 +01:00
Jason A. Donenfeld
306d08e692
tun_windows: Style
2019-02-07 04:08:05 +01:00
Simon Rozman
cb2bc4b34c
tun_windows: Introduce preliminary TUN interface creation
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-06 22:30:14 +01:00
Simon Rozman
46279ad0f9
tun_windows: Stop checking minimum size of received TUN packets
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Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-06 20:22:04 +01:00
Jason A. Donenfeld
c599bf9497
Fix up errors and paths
2019-02-05 22:06:25 +09:00
Jason A. Donenfeld
6f76edd045
Import windows scafolding
2019-02-05 12:59:42 +01:00
