Commit Graph

87 Commits

Author SHA1 Message Date
Simon Rozman
542a281808 api: tighten function parameter code analysis annotations
Signed-off-by: Simon Rozman <simon@rozman.si>
2021-02-04 19:00:17 +01:00
Simon Rozman
7a6bab7f04 api: unify NetCfgInstanceId registry retrieval
Signed-off-by: Simon Rozman <simon@rozman.si>
2021-02-04 18:39:10 +01:00
Jason A. Donenfeld
fb416747dc api: ensure that device object exists before returning from open/create
Some users are seeing errors like this after rebooting from Windows
Update:

2021-01-28 18:39:45.220197: [TUN] Creating Wintun interface
2021-01-28 18:39:49.420116: [TUN] [Wintun] CreateAdapter: Creating adapter
2021-01-28 18:39:53.704007: [TUN] [Wintun] OpenDeviceObject: Failed to connect to adapter: The system cannot find the path specified. (Code 0x00000003)
2021-01-28 18:39:53.704007: [TUN] [Wintun] WintunStartSession: Failed to open adapter device object
2021-01-28 18:39:54.097037: [TUN] Unable to create Wintun interface: Error starting session: The system cannot find the path specified.

It appears that creation of the device object file might happen
asynchronously, so this commit polls for it.

Reported-by: Artem Kuroptev <artem@kuroptev.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-02-03 22:36:41 +01:00
Jason A. Donenfeld
2628412d71 global: bump copyright
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-30 16:45:26 +01:00
Jason A. Donenfeld
49b7692d5b api: use custom devpkey for pool
It seems like the friendly name is still getting reset sometimes. Rather
than swimming upstream, it turns out we can just use a custom devpkey
that, according to msdn, is respected.

https://docs.microsoft.com/en-us/windows-hardware/drivers/install/creating-custom-device-properties

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-01-30 16:41:16 +01:00
Jason A. Donenfeld
a9f8b2b764 api: do not make dead gateway detection failures fatal
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-17 16:27:11 +01:00
Simon Rozman
f7c2ea4ded api: retry on ERROR_TRANSACTION_NOT_ACTIVE when disabling dead GW detect
There seems to be a race in the TCP/IP adapter registry key. Sometimes,
the adapter TCP/IP key is created, but setting the value
EnableDeadGWDetect fails with ERROR_TRANSACTION_NOT_ACTIVE.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-17 15:30:00 +01:00
Jason A. Donenfeld
fc348f519b api: relax IsPoolMember estimation
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-09 15:34:38 +01:00
Jason A. Donenfeld
0d214d7254 api: do not call UpdateDriverForPlugAndPlayDevicesW
This seems to reset a number of device properties, and our update flow
seems to update old adapters without needing to call this.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-09 15:14:33 +01:00
Jason A. Donenfeld
8ec14e5f6d api: take pool mutex when deleting
This prevents us from racing with driver deletion. Mutexes are
recursive, so we shouldn't deadlock if called from Enum.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-09 13:15:57 +01:00
Jason A. Donenfeld
7c5233a80e api: account for adapter disappearing during deletion
This makes the race less fatal.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-09 13:11:07 +01:00
Jason A. Donenfeld
ed0465b8a7 api: avoid loading version.dll if not used
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-06 10:25:15 +01:00
Jason A. Donenfeld
9f3d466791 api: remove WintunOpenAdapterDeviceObject
Discourage use of kernel interface, which gives us more flexibility if
we ever want to change it.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-05 16:58:43 +01:00
Jason A. Donenfeld
1285b8f528 api: rename WintunGetAdapter to WintunOpenAdapter
"Create" and "Open" natural names for these.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-05 16:58:43 +01:00
Jason A. Donenfeld
c26b16e06f api: CALLBACK_FUNC -> CALLBACK
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-04 16:46:24 +01:00
Jason A. Donenfeld
dc99f96da7 api: rename GetVersion to GetRunningDriverVersion
This makes our intentions a lot more clear, and in case we ever add
other version functions, makes the forward path simpler.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-04 14:53:39 +01:00
Jason A. Donenfeld
5d1efa847f api: use a logging alloc function
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-04 13:21:43 +01:00
Simon Rozman
0a51e26730 api: include the rundll32 helpers the MSVC-typical way
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-04 13:21:42 +01:00
Simon Rozman
552821f59a api: translate NTSTATUS to Win32 error codes
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-04 13:21:42 +01:00
Simon Rozman
f657e6fd27 api: use GetLastError() to report failures like standard Win32
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-04 13:21:42 +01:00
Jason A. Donenfeld
677ba8680f wintun: extract inf driverver at compile time into C header
This requires us to make some insane conversions between INF date,
JavaScript time, and finally Windows file time. The point is to mimic
SystemTimeToFileTime, which is what SpInf.dll's pSetupStringToDriverDate
does on the YYYY-MM-DD from the INF.

The result is that we no longer have to parse an ancient text format in
C at runtime.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 18:29:52 +01:00
Jason A. Donenfeld
90a33d9cc6 api: move undocumented ntdll symbols to ntdll.h
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 15:28:17 +01:00
Jason A. Donenfeld
080b6896e0 api: constify pool argument
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 12:47:26 +01:00
Jason A. Donenfeld
8963f7258e api: remove guid getter
The iphlpapi takes both LUIDs and GUIDs but prefers LUIDs, so exposing
the NET_LUID makes sense. However, we were previously exposing the
configuration GUID, rather than the net GUID, which is confusing, so
just make it all go away.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 12:34:19 +01:00
Jason A. Donenfeld
2af7fbd64a api: use 'open' name since caller must close handle
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 12:31:49 +01:00
Jason A. Donenfeld
7dede73406 api: add pool/driver removal for uninstaller semantics
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 12:27:42 +01:00
Jason A. Donenfeld
64f39cd95d api: only return top two version nibbles
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 11:01:20 +01:00
Simon Rozman
aa6e540811 api: prevent double SetupDiDestroyDriverInfoList calls on error
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-03 10:40:09 +01:00
Jason A. Donenfeld
19d6227c1d api: rundll32: repair token spawning semantics
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 10:34:25 +01:00
Simon Rozman
a73927ea6c api: refactor .inf parsing and check SystemTimeToFileTime for errors
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-03 10:34:23 +01:00
Simon Rozman
77ff03f621 api: simplify IsOurDrvInfoDetail()
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-03 10:34:23 +01:00
Jason A. Donenfeld
1201c9f346 api: ensure more code compiles by using dead code elimination
It'd be nicer to do this via

if (is_defined(HAVE_WHATEVER))

But MSVC won't work with the linux kernel macros for this. Ongoing
research.

Nevertheless, this makes most of the program always pass through the
compiler's type checker, only to have dead code removed later.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 02:25:57 +01:00
Jason A. Donenfeld
353cfa562e api: begin to separate rundll32 jumps
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-03 02:25:20 +01:00
Jason A. Donenfeld
0d7b9c7319 api: free beginning of heap object
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 23:42:43 +01:00
Jason A. Donenfeld
ddacb5491a api: pass around NET_LUID instead of LUID
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 23:33:20 +01:00
Jason A. Donenfeld
351349b4c4 api: return correct error when there's a duplicate
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 23:33:20 +01:00
Simon Rozman
283f6c8e63 api: install driver on demand
...and add API for uninstalling it.

Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-02 23:33:20 +01:00
Jason A. Donenfeld
78bad1436e api: statically compile devpkey constants
I don't like this solution, but I don't see much other choice. It's not
in uuid.lib or anywhere like that.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 13:52:47 +01:00
Jason A. Donenfeld
007db8bd94 api: serialize driver installation
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 12:07:05 +01:00
Jason A. Donenfeld
7f35f0dbab api: map cr errors to win32 errors
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 12:38:37 +01:00
Simon Rozman
47a241e5d8 api: simplify and unify error messages
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-11-02 12:19:36 +01:00
Jason A. Donenfeld
13494e979e api: pnf param is none
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 12:19:36 +01:00
Jason A. Donenfeld
b5836e9fb9 api: make version function uniform
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 09:17:47 +01:00
Jason A. Donenfeld
99097022fe api: avoid call to CM_Get_DevNode_Status
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 09:17:47 +01:00
Jason A. Donenfeld
dfa53185d0 api: check for duplicate adapter status
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 09:17:47 +01:00
Jason A. Donenfeld
9adb49e13d api: separate out driver installation
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-02 09:17:47 +01:00
Jason A. Donenfeld
334a5e619f api: cleanup names
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-01 00:00:14 +01:00
Jason A. Donenfeld
b65e35569b api: account for nt path to module
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-11-01 00:00:14 +01:00
Simon Rozman
60ad907b99 api: check buffer overflows in runtime
Signed-off-by: Simon Rozman <simon@rozman.si>
2020-10-31 19:11:57 +01:00
Jason A. Donenfeld
17bd620a36 api: do not require RebootRequired
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2020-10-31 19:11:56 +01:00