Commit Graph

191 Commits

Author SHA1 Message Date
Simon Rozman
d04721dee6 api: test the temporary driver idea
1. Add driver to the store: SetupCopyOEMInfW()
2. Create the adapter using explicit path to .inf file: DI_ENUMSINGLEINF
3. Delete all Wintun drivers from the store.

This is a subject of further research:

- It appears those adapters survive a reboot. So, Windows must store the
  driver somewhere on the disk and the driver removal is not completed.
  If the driver removal is not completed until there are existing
  adapters, this is excellent, as it will provide a self-cleanup.

- Test multiple adapters with different driver versions. Which driver
  wins?

- Are other Wintun adapters interrupted when adding a new one?

- Test Windows 7 behaviour.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
8272da638e api: unify security descriptors and disable for _DEBUG
When debugger is attached, CreateDirectory() with SYSTEM-only SID fails
with "This security ID may not be assigned as the owner of this object.
(Code 0x0000051B)".

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
8bfe692c97 api: arrange rundll32 a console logger
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
70461121f7 api: remove temporary folder in case of intermediate failure
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
369801cdfa api: elevate rundll32 calls to SYSTEM
I need this for debugging. In production environment, WoW64 clients will
already call rundll32 elevated to SYSTEM.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
ac6db7788a api: move documentation to .h and discontinue on static functions
While Doxygen correctly locates the function documentation when it is
written directly preceding the function body, Microsoft Visual Studio
IDE does not. The former requires the documentation to precede the
function declaration.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
1f87c307f6 api: log out-of-memory errors too
It's not likely the write to log will succeed in low memory condition
thou.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
2a77f20277 api: remove dead code
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
3058f1e57e api: added missing allocation-failure check
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
0ad302c11d api: stop double error status reporting
When an internal function logs an error and its cause, it bloats the log
when the caller logs the cause again.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
16a9737578 api: internal reorganization
Gather adapter management in adapter.h/.c (formerly devmgmt.h/.c) and
unify HwID tests.

Use "Namespace" namespace in all functions from namespace.h/.c.

Fix char strings in LOG_...

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
78b7a01eb3 api: simplify logger macros names
WINTUN_LOGGER_... => LOGGER_... => LOG_...

Those macros are internal, so they don/t need to start with WINTUN_...

Replacing the noun LOGGER_... with the verb LOG_... makes the code more
natural to read now.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
e157d421ec api: implement driver version extraction from .inf file
With installer.dll the installer did the decision whether to install or
upgrade the driver according to installer.dll version and hash stored in
registry by MSM.

With wintun.dll we need to know, which version of Wintun driver we are
packing in the resources to decide about driver upgrade. The most
accurate source of the driver version is the DriverVer directive in
[Version] section of the driver's .inf file.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
85c32a5566 api: disable driver management for wintun.dll that don't have a driver
Namely the 32-bit ARM platform, which we will ship wintun.dll for ARM on
ARM64 clients exclusively.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
84113bd294 api: unify and document resource loading
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:51:00 +01:00
Simon Rozman
a3d9431e70 api: unify hardware ID string
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
2727d14438 api: unify callback function type names
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
c324d07ffb api: add driver management
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
f316c13b3e api: introduce logging
And other unifications with installer before merging.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
abd20337e2 api: split api.h
As the project grew, api.h got bloated.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
295591046f api: revise str/memcpy
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
af937e52eb api: make adapter name searching more efficient
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
4c131caa7d api: honor locale when comparing case-insensitive
Quote from MSDN:
> You will need to call setlocale for _wcsicmp to work with Latin 1
> characters. The C locale is in effect by default, so, for example, ä
> will not compare equal to Ä.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
c8711464bb api: fix trailing number detection in RemoveNumberedSuffix()
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
5925f914e4 api: add support for WoW64
Some functions of SetupAPI only work when invoked from a native process.
Registry and filesystem reflection makes them fail on WoW64. For WoW64
processes, a minimum set of rundll32 functions are provided.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
b592e071d2 api: tighten source code annotation
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
640605a8d9 api: update documentation
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
355ce73841 api: simplify workflow
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
c213663a90 api: revise and unify error codes
GetDevInfoData: Some functions returned ERROR_OBJECT_NOT_FOUND, others
ERROR_FILE_NOT_FOUND when the needle was not found in the haystack.

GetTcpipInterfaceRegPath: When IpConfig is an empty REG_MULTI_SZ, it is
actually ERROR_INVALID_DATA - like other unexpected registry values -
rather than a misleading ERROR_NETWORK_NOT_AVAILABLE.

Failure in TakeNameMutex result in ERROR_INVALID_HANDLE rather than the
ERROR_GEN_FAILURE with a misleading message: "A device attached to the
system is not functioning."

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
28c135b8e1 api: tighten maximum registry key path length
Maximum registry key path length is not 260 (MAX_PATH), but 255 (256
incl. zero terminator).

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
43a1751b21 api: fix SPDRP_DEVICEDESC zero-termination
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
0adf0fab8d api: do the set-quiet-install later
Rather than setting the "quiet" flag to each and every device in the
process of iterating, set it when actually creating/deleting it.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
08e2993d23 api: cleanup
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:59 +01:00
Simon Rozman
0a986ce9fc api: add pre-compiled header support
...for super-fast compilation.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
a283add85b api: rename WINSTATUS to WINTUN_STATUS
...to reduce name collision probability.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
7e3740018d api: finish porting from wireguard-go
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
c8bf62ac19 api: unify Win32 error type
This makes the code more readable and works around the clang-format.exe
issues with _Return_type_success_ source annotation.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
d3a63116ba api: port GetInterface member from wireguard-go
Mind that this also fixes the order of adapter detection checks. A fast
test to eliminate non-Wintun adapters from iteration to speed things up
rendered the method incapable of detecting a non-Wintun adapter with the
name we are looking for.

ERROR_OBJECT_NOT_FOUND was replaced with ERROR_FILE_NOT_FOUND.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
3fa45fec71 api: port nci package from wireguard-go
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
6f55786c65 api: port tun\wintun\namespace_windows.go from wireguard-go
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00
Simon Rozman
0ef8578c81 api: add skeleton for wintun.dll
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-30 16:50:58 +01:00