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4b1db1d39b
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38 Commits

Author SHA1 Message Date
Simon Rozman
4b1db1d39b tun: windows: Increase unavailable adapter timeout to 30sec 
5 seconds was too short when debugging.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 13:52:51 +01:00
Simon Rozman
a80db5e65e tun: windows: Make writing persistent too 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 13:52:51 +01:00
Simon Rozman
9748a52073 tun: windows: Fix paused adapter test 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 13:52:51 +01:00
Jason A. Donenfeld
317d716d66 tun: windows: just open two file handles 2019-03-21 15:20:09 -06:00
Jason A. Donenfeld
6440f010ee receive: implement flush semantics 2019-03-21 14:45:41 -06:00
Jason A. Donenfeld
49ea0c9b1a tun: windows: add dummy overlapped events back 
These seem basically wrong to me, but we get crashes without them.
 2019-03-21 02:29:09 -06:00
Jason A. Donenfeld
ca59b60aa7 tun: windows: use new constants in sys 2019-03-20 23:42:30 -06:00
Simon Rozman
91b4e909bb wintun: Use native Win32 API for I/O 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-21 00:56:45 +01:00
Jason A. Donenfeld
03f2e2614a tun: windows: wintun does iocp 2019-03-18 02:42:45 -06:00
Jason A. Donenfeld
b0e0ab308d tun: windows: temporary hack for forcing MTU 2019-03-13 02:52:32 -06:00
Simon Rozman
1fdf7b19a3 wintun: Resolve some of golint warnings 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-04 16:37:11 +01:00
Simon Rozman
a1aabb21ae Elaborate the failing step when forwarding errors on return 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-04 16:37:11 +01:00
Jason A. Donenfeld
69f0fe67b6 global: begin modularization 2019-03-03 05:00:40 +01:00
Jason A. Donenfeld
d435be35ca tun: windows: expose GUID 2019-03-01 00:11:12 +01:00
Jason A. Donenfeld
967d1a0f3d tun: allow special methods in NativeTun 2019-03-01 00:05:57 +01:00
Simon Rozman
d002eff155 wintun: Read/write packet size from/to exchange buffer directly 
Driver <-> user-space communication is local and using native endian.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-22 16:16:14 +01:00
Simon Rozman
e06a8f8f9f wintun: Make two-step slicing a one step 
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 
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 
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 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-20 19:56:10 +01:00
Simon Rozman
040da43889 wintun: Cleanup 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-20 18:38:18 +01:00
Simon Rozman
b7025b5627 wintun: Add TUN device locking 
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 
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 
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 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-08 15:21:24 +01:00
Simon Rozman
f05f52637f wintun: Simplify Read method() 
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 
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 
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 
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 
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 
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 
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