Commit graph

39 commits

Author SHA1 Message Date
Simon Rozman 6c1b66802f wintun: registry: revise value reading
- Make getStringValueRetry() reusable for reading any value type. This
  merges code from GetIntegerValueWait().
- expandString() >> toString() and extend to support REG_MULTI_SZ
  (to return first value of REG_MULTI_SZ). Furthermore, doing our own
  UTF-16 to UTF-8 conversion works around a bug in windows/registry's
  GetStringValue() non-zero terminated string handling.
- Provide toInteger() analogous to toString()
- GetStringValueWait() tolerates and reads REG_MULTI_SZ too now. It
  returns REG_MULTI_SZ[0], making GetFirstStringValueWait() redundant.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-11 17:14:37 +02:00
Jason A. Donenfeld 5669ed326f wintun: call HrRenameConnection in another thread 2019-05-10 21:31:37 +02:00
Jason A. Donenfeld 7a8553aef0 wintun: enumerate faster by using COMPATDRIVER instead of CLASSDRIVER 2019-05-10 20:30:59 +02:00
Jason A. Donenfeld a6045ac042 wintun: destroy devinfolist after usage 2019-05-10 20:19:11 +02:00
Simon Rozman 1c92b48415 wintun: registry: replace REG_NOTIFY with NOTIFY
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-10 18:09:20 +02:00
Jason A. Donenfeld c267965bf8 wintun: IpConfig is a MULTI_SZ, and fix errors 2019-05-10 18:06:49 +02:00
Jason A. Donenfeld 1bf1dadf15 wintun: poll for device key
It's actually pretty hard to guess where it is.
2019-05-10 17:34:03 +02:00
Jason A. Donenfeld f9dcfccbb7 wintun: fix scope of error object 2019-05-10 16:59:24 +02:00
Simon Rozman 7e962a9932 wintun: wait for interface registry key on device creation
By using RegNotifyChangeKeyValue(). Also disable dead gateway detection.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-10 16:43:58 +02:00
Jason A. Donenfeld 81ca08f1b3 setupapi: safer aliasing of slice types 2019-05-03 09:34:00 +02:00
Jason A. Donenfeld 46dbf54040 wintun: don't retry when not creating
The only time we're trying to counteract the race condition is when
we're creating a driver. When we're simply looking up all drivers, it
doesn't make sense to retry.
2019-05-02 23:53:15 +02:00
Jason A. Donenfeld e0a8c22aa6 windows: use proper constants from updated x/sys 2019-04-13 02:02:02 +02:00
Jason A. Donenfeld ac25702eaf wintun: rename device using undocumented API that netsh.exe uses 2019-04-01 12:04:44 +02:00
Jason A. Donenfeld 92f8474832 wintun: add more retry loops 2019-04-01 09:07:43 +02:00
Jason A. Donenfeld 2fa80c0cb7 wintun: query for NetCfgInstanceId several times 2019-03-22 16:48:40 -06:00
Simon Rozman 2faf2dcf90 tun: windows: Make adapter rename asynchronous
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-22 16:36:30 +01:00
Simon Rozman 41c30a7279 tun: windows: Adapter devices renamed to WINTUN<LUID Index>
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-22 15:29:14 +01:00
Jason A. Donenfeld 03f2e2614a tun: windows: wintun does iocp 2019-03-18 02:42:45 -06:00
Jason A. Donenfeld 66fb5caf02 wintun: Poll more often 2019-03-10 03:47:54 +01:00
Simon Rozman c2a2b8d739 wintun: Make errors more descriptive
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-08 10:03:57 +01:00
Simon Rozman 70449f1a97 wintun: Return correct reboot-req flag on CreateInterface() error too
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-08 10:03:57 +01:00
Simon Rozman 33c3528430 wintun: Fix double-quoted strings escaping on output
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-08 10:03:57 +01:00
Simon Rozman 30ab07e354 wintun: Introduce SetupAPI enumerator and machineName consts
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-08 10:03:57 +01:00
Simon Rozman 368dea72fe wintun: Cleanup
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-07 21:12:20 +01:00
Simon Rozman 9b22255cad wintun: Refactor network registry key name generation
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-07 21:12:20 +01:00
Simon Rozman 11f5780250 wintun: Revise interface creation wait
DIF_INSTALLDEVICE returns almost immediately, while the device
installation continues in the background. It might take a while, before
all registry keys and values are populated.

Previously, wireguard-go waited for HKLM\SYSTEM\CurrentControlSet\
Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\<id> registry key
only.

Followed by a SetInterfaceName() method of Wintun struct which tried to
access HKLM\SYSTEM\CurrentControlSet\Control\Network\
{4D36E972-E325-11CE-BFC1-08002BE10318}\<id>\Connection registry key
might not be available yet.

This commit loops until both registry keys are available before
returning from CreateInterface() function.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-07 21:12:20 +01:00
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 9041d38e2d Simplify reading NetCfgInstanceId from registry
As querying non-existing registry value and reading non-existing
registry string value both return ERROR_FILE_NOT_FOUND, we can
use later only.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-04 16:37:11 +01:00
Simon Rozman cddfd9a0d8 Unify interface-specific network registry key open
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-03-04 16:37:11 +01:00
Jason A. Donenfeld 42c6d0e261 Change package path 2019-02-18 05:11:39 +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 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
Jason A. Donenfeld c4b43e35a7 wintun: add FlushInterface stub 2019-02-07 18:24:28 +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 ea59177f1c wintun: Introduce new package for obscuring Windows bits 2019-02-07 04:39:59 +01:00