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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
Jason A. Donenfeld f7170e5de2 Bump dependencies for ARM ChaCha20 2019-02-14 10:59:54 +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 c4988999ac setupapi: Merge _SP_DRVINFO_DETAIL_DATA and DrvInfoDetailData 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 23:50:43 +01:00
Simon Rozman b662896cf4 setupapi: Merge SP_DRVINFO_DATA and DrvInfoData 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 23:50:43 +01:00
Simon Rozman 0525f6b112 setupapi: Rename SP_REMOVEDEVICE_PARAMS to RemoveDeviceParams 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 23:50:43 +01:00
Simon Rozman 9d830826c5 setupapi: Rename SP_CLASSINSTALL_HEADER to ClassInstallHeader 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 23:50:43 +01:00
Simon Rozman bd963497da setupapi: Merge _SP_DEVINSTALL_PARAMS and DevInstallParams 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 23:50:30 +01:00
Simon Rozman 05d25fd1b7 setupapi: Merge _SP_DEVINFO_LIST_DETAIL_DATA and DevInfoListDetailData 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 23:49:50 +01:00
Simon Rozman 6d2729dccc setupapi: Rename SP_DEVINFO_DATA to DevInfoData 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 22:43:02 +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
Simon Rozman 043b7e8013 wintun: Clean excessive setupapi.DevInfo.GetDeviceInfoListDetail() call 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 20:49:41 +01:00
Simon Rozman ef48d4fa95 wintun: Explain rationale behind case-insensitive interface names 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 19:42:59 +01:00
Simon Rozman f7276ed522 wintun: Implement TODO in TestSetupDiGetDeviceRegistryProperty() 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-07 18:59:34 +01:00
Jason A. Donenfeld c4b43e35a7 wintun: add FlushInterface stub 2019-02-07 18:24:28 +01:00
Jason A. Donenfeld 2efafecab5 main_windows: Get iface name from argument 2019-02-07 15:44:07 +01:00
Jason A. Donenfeld fac1fbcd72 wintun: Compare values of GUID, not pointers, when removing 2019-02-07 04:49:15 +01:00
Jason A. Donenfeld 52aa00f3ba main_windows: Catch more exit events 2019-02-07 04:42:35 +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
Jason A. Donenfeld 3b7a4fa3ef setupapi: Lower case params 2019-02-07 03:46:31 +01:00
Jason A. Donenfeld 223685875f setupapi: Do not export the toGo/toWindows functions 2019-02-07 02:56:31 +01:00
Jason A. Donenfeld 652158ec3c setupapi: Pass pointers instead of values 2019-02-07 02:37:19 +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
Simon Rozman 73df1c0871 setupapi: Add DrvInfoDetailData.IsCompatible() to simplify HID detection 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-06 20:18:44 +01:00
Simon Rozman 069016bbc4 setupapi: Add SP_DRVINFO_DATA.IsNewer() method to simplify comparison 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-06 20:17:47 +01:00
Simon Rozman 3c29434a79 setupapi: Make toUTF16() public and add UTF16ToBuf() counterpart 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-06 20:15:40 +01:00
Jason A. Donenfeld c599bf9497 Fix up errors and paths 2019-02-05 22:06:25 +09:00
Jason A. Donenfeld f7f63765d1 conn: close ipv4 socket when ipv6 socket fails 2019-02-05 21:55:33 +09:00
Simon Rozman 3e8f2e3fa5 setupapi: Add support for driver info lists 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 16:29:17 +01:00
Simon Rozman 7b636380e5 setupapi: Move Go<>Windows struct marshaling to types_windows.go 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 14:03:28 +01:00
Simon Rozman 99a3b628e9 setupapi: Add support for SetupDi(Get|Set)DeviceRegistryProperty() 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 12:59:42 +01:00
Simon Rozman e7ffce0d21 setupapi: Introduce DevInfo methods for cleaner code 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 12:59:42 +01:00
Simon Rozman 35f72239ac Add support for setupapi.SetupDi(Get|Set)SelectedDevice() 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 12:59:42 +01:00
Simon Rozman c15cbefc12 Reorder data-types and functions to match SetupAPI.h 
Adding functions with non-consistent order made setupapi package a mess.
While we could reorder data-types and functions by alphabet - it would
make searching easier - it would put ...Get... and ...Set... functions
quite apart.

Therefore, the SetupAPI.h order was adopted.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 12:59:42 +01:00
Simon Rozman dd998ca86a Add support for setupapi.SetupDiCreateDeviceInfo() 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-02-05 12:59:42 +01:00