Commit Graph

264 Commits

Author SHA1 Message Date
Geoffrey McRae
ad9e84eaaa [host] return a proper exit code 2021-01-21 15:07:19 +11:00
Quantum
ffa72c7992 [host] nvfbc: force composition to capture some full screen apps
NvFBC is unable to capture certain applications that bypasses the DWM
compositor, for example, Firefox playing video in full screen. This
has been a known issue for a long time with Nvidia's ShadowPlay, see:
* https://www.nvidia.com/en-us/geforce/forums/geforce-experience/14/233709/
* https://crbug.com/609857

Nvidia won't fix this, but there are workarounds. For example, we
create a transparent 1x1 layered window, which forces desktop composition
to be enabled.

Note that SetLayeredWindowAttributes also supports alpha-based transparency,
but setting transparency to 0 will cause DWM to skip composition. We could
use a transparency of 1, but this ruins the image by the slightest bit,
which is unacceptable. Therefore, we must use chroma key-based
transparency, which tricks DWM into compositing despite being fully
transparent.
2021-01-21 12:14:03 +11:00
Geoffrey McRae
cac454d9cf [host] dxgi: reverse the rotation angle.
This is undocumented however testing yields that DXGI DD reports the
inverse rotation. Research shows that this is because of a difference in
coordiate spaces.

Ref: https://docs.microsoft.com/en-us/windows/uwp/gaming/supporting-screen-rotation-directx-and-cpp
2021-01-18 15:15:36 +11:00
Geoffrey McRae
f5587b6b6b [host] all: pass back the desktop rotation to the client 2021-01-18 13:53:29 +11:00
Quantum
95e1b48f83 [host] windows: make mousehook.c work on secure desktop
Basically, this creates a separate thread for the mouse events, and this
thread detects that the desktop has changed (say to the secure desktop),
and unhooks, switches to the new desktop, and then rehooks.

This allows the cursor location to be updated while using NvFBC on secure
desktop and the login screen.
2021-01-17 13:23:29 +11:00
Quantum
fe835b98d5 [host] windows: sleep for 1 second instead of 1 millisecond
This is definitely supposed to sleep for 1 second.
1 ms is basically no throttling.
2021-01-17 02:58:27 +11:00
Quantum
c5c43d99f3 [host] windows: allow capture of login screen
WTSGetActiveConsoleSessionId will return a session even if it's not logged in,
unlike our old GetInteractiveSessionID function. Launching looking glass on
such a console session will allow the login screen to be captured.

Note that WTSGetActiveConsoleSessionId() will return 0xFFFFFFFF if there are
no sessions attached.
2021-01-17 02:56:29 +11:00
Quantum
4858bb5899 [host] windows: avoid quoting issues with CreateProcessAsUserA
To quote MSDN documentation:

> The lpApplicationName parameter can be NULL, in which case the executable
> name must be the first white space–delimited string in lpCommandLine. If
> the executable or path name has a space in it, there is a risk that a
> different executable could be run because of the way the function parses
> spaces. The following example is dangerous because the function will
> attempt to run "Program.exe", if it exists, instead of "MyApp.exe".
>
>   LPTSTR szCmdline[] = _tcsdup(TEXT("C:\\Program Files\\MyApp"));
>   CreateProcessAsUser(hToken, NULL, szCmdline, /*...*/ );
>
> If a malicious user were to create an application called "Program.exe" on
> a system, any program that incorrectly calls CreateProcessAsUser using the
> Program Files directory will run this application instead of the intended
> application.
>
> To avoid this problem, do not pass NULL for lpApplicationName.

So instead, we pass the executable to lpApplicationName instead, which avoids
the issue. MSDN says:

> The lpCommandLine parameter can be NULL. In that case, the function uses
> the string pointed to by lpApplicationName as the command line.

This also avoids the strdup since lpApplicationName is LPCSTR unlike
lpCommandLine which is LPSTR.
2021-01-16 11:48:03 +11:00
Quantum
8f27789d25 [host] windows: close handle to token in enablePriv
This should eliminate all handle leaks resulting from killing the host.
2021-01-15 20:44:50 +11:00
Quantum
e401513552 [host] windows: add timestamps to service logs
This makes it easier to identify when things in the logs happened.
2021-01-15 20:44:38 +11:00
Quantum
81561a242f [host] windows: remove ImpersonateLoggedOnUser call
It shouldn't have any effect, since the host application is created with
the token, and there is no need for the service itself to impersonate.

In practice, removal doesn't appear to have any effect on the ability to
capture privileged things like secure desktop.
2021-01-15 20:44:25 +11:00
Quantum
789f21ccb3 [host] windows: handle defined exit codes in service
The service should now react to host application exit codes.
For the exit codes that demands it, the service will exit instead of
restarting the host.
2021-01-15 20:44:13 +11:00
Quantum
323aab8ec2 [host] windows: improve restart logic and remove mutex hack
Use the process handle returned by CreateProcessAsUserA to wait on the
process. This results in faster response times and less polling.
For example, it now restarts instantly when UAC is activated.

This also removes the call to OpenProcess and rendering the mutex unnecessary.

As a bonus, it should fix #298.
2021-01-15 11:43:23 +11:00
Quantum
22920acc88 [host] windows: define exit codes for future use
The host process will be changed to return these codes, from which the
service process could decide whether to exit or restart the process and log.

Note that on Windows, return values are 32-bit unlike POSIX which is only 8.
2021-01-15 11:27:02 +11:00
Quantum
65009dcedc [host] windows: avoid leaking process and thread handles
The handles in PROCESS_INFORMATION must be closed if not used, or they
will leak.
2021-01-15 09:49:42 +11:00
Quantum
a55b5e4b06 [host] linux: link with libX11 and libGL 2021-01-15 08:49:30 +11:00
Quantum
e467db64d8 [host] linux: include missing headers
- <pwd.h> for getpwuid
- <unistd.h> for getuid
- "common/stringutils.h" for alloc_sprintf
2021-01-15 08:49:30 +11:00
Quantum
dd2d69fa37 [host] xcb: remove undefined getPointer member from Capture_XCB 2021-01-15 08:49:30 +11:00
Quantum
ed9e3d253b [host] xcb: fix xcb_create signature error
Should have two arguments instead of zero.
2021-01-15 08:49:30 +11:00
Quantum
2723b4b7c0 [host] xcb: fix xcb_getFrame compile error
The argument should have been a pointer.
2021-01-15 08:49:30 +11:00
Tudor Brindus
a46a3a2668 [all] use explicit void parameter lists
This makes it a compile-time error to call a function that semantically
takes no parameters with a nonzero number of arguments.

Previously, such code would still compile, but risk blowing up the stack
if a compiler chose to use something other than caller-cleanup calling
conventions.
2021-01-14 17:29:37 +11:00
Geoffrey McRae
c2ad9666bb [host] use the HotSpot information as provided by DXGI
I must have originally overlooked this member when I wrote this code. :S
2021-01-05 20:55:39 +11:00
Quantum
7e4d323427 get display DPI info to scale mouse movement 2021-01-05 09:03:29 +11:00
Jonathan Rubenstein
393a879c0b [host] nsis: change 'Stopping' to imperative 'Stop'
This follows the rest of the output like Install, Delete
2021-01-01 12:12:07 +11:00
Jonathan Rubenstein
d01d9db9bf [host] nsis: log more details about the process
Uses nsExec:ExecToLog in a few places to log on the installation output
window
2021-01-01 12:12:02 +11:00
Jonathan Rubenstein
5cc4f5454f [host] nsis: amended installer welcome description 2021-01-01 12:10:23 +11:00
Jonathan Rubenstein
32c797e60a [host] nsis: adds colour to installer and welcome screen 2021-01-01 12:10:15 +11:00
Jonathan Rubenstein
b66715b042 [host] nsisi: add welcome page to installer 2021-01-01 12:10:09 +11:00
Geoffrey McRae
38198b1477 [host] dynamically locate CreateProcesssAsUserA for pre-win 10 2020-12-30 18:29:58 +11:00
Geoffrey McRae
604b6bec9a [host] don't fail if windows is dumb and doesnt give us the cursor info 2020-11-01 04:45:57 +11:00
Geoffrey McRae
9d0ae23f9f [host] init ivshmem options before testing 2020-10-19 03:01:35 +11:00
Geoffrey McRae
9ff1859dc1 [host] windows: check the ivshmem device exists in the service 2020-10-19 02:49:15 +11:00
Geoffrey McRae
7a7e1d006b [host] set the program name/description in the app.manifest 2020-10-19 01:56:03 +11:00
Geoffrey McRae
38b05cda50 [host] dxgi: fix incorrect bpp value 2020-10-12 20:08:51 +11:00
Geoffrey McRae
7a49f75d95 [host] dxgi: ensure formatVer is incremented on re-init 2020-10-12 19:39:57 +11:00
Geoffrey McRae
b2961c7939 [all] added new format version field to frame header 2020-10-12 18:52:37 +11:00
Geoffrey McRae
8a9f004ff6 [host/client] fix invalid initialization of RGBA16F 2020-10-11 19:39:47 +11:00
Geoffrey McRae
9c6bd888fd [host/client] added experimental RGBA16 float support (EGL only) 2020-10-11 19:22:31 +11:00
Geoffrey McRae
a94d3734c2 [all] pass the project path to the version.cmake script 2020-10-09 02:51:28 +11:00
Geoffrey McRae
e1d7752165 [host] fix nsis build failure to do invalid path to new VERSION file 2020-10-09 02:36:48 +11:00
Geoffrey McRae
e6c88a4af3 [all] be smarter about getting the git version 2020-10-09 02:17:20 +11:00
Geoffrey McRae
e20c8a5cc7 [host] dxgi: don't try to get the hotspot of a null cursor 2020-10-06 23:24:01 +11:00
Geoffrey McRae
4f4d2dbf42 [host] dxgi: fix memory leak if an error occurs 2020-10-06 22:32:10 +11:00
Geoffrey McRae
7e362050f7 [all] update KVMFR to provide cursor hotspot information
This commit bumps the KVMFR protocol version as it adds additional
hotspot x & y fields to the KVMFRCursor struct. This corrects the issue
of invalid alignment of the local mouse when the shape has an offset
such as the 'I' beam.
2020-08-20 13:51:01 +10:00
Geoffrey McRae
1c7961daeb [host] dxgi: rework locking and retry logic for lower latency 2020-08-15 20:49:49 +10:00
Geoffrey McRae
cdc3384883 [host] dxgi: improve frame signaling mechanics 2020-08-15 18:16:11 +10:00
Geoffrey McRae
969effedde [host] update information about PsExec now LG can run as a service 2020-08-13 11:41:16 +10:00
Geoffrey McRae
4e1f947a09 [host] Windows: fix uninstaller product name 2020-08-12 22:03:10 +10:00
Geoffrey McRae
15d1a74291 [host] Windows: multiple fixes to the installer 2020-08-12 21:50:48 +10:00
Geoffrey McRae
64fdb8b7bb [host] Windows: service (un)install now starts/stops the service
In addition to starting and stopping the service, it now also stops the
LG process if the service started it.
2020-08-12 20:56:02 +10:00
Geoffrey McRae
ca02e1aba9 [host] Windows: change "Open Log File" to "Log File Location" 2020-08-11 17:45:00 +10:00
Geoffrey McRae
ca4b1f5592 [host] Windows: don't open the log file, instead show it's location
Now that it's recommended to run LG as the `SYSTEM` user, launching an
application to read the log file is dangerous as it will be launched
with the same access rights (`SYSTEM`). Instead so as Microsoft
recommends and only present a message box with the information.
2020-08-11 17:42:00 +10:00
Geoffrey McRae
0cf1e27709 [host] Windows: run with HIGH priority if started by the service 2020-08-11 17:37:40 +10:00
Geoffrey McRae
bf5481446b [host] Windows: poll more freqently for a stopped LG process 2020-08-11 15:22:29 +10:00
Geoffrey McRae
4619ddef5d [host] Windows: added missing linker library 2020-08-11 13:15:18 +10:00
Geoffrey McRae
ea74ee6e25 [host] windows: fix crosscompile take 2 2020-08-11 13:11:42 +10:00
Geoffrey McRae
ecd73aa670 [host] windows: fix linux crosscompile 2020-08-11 13:07:23 +10:00
Geoffrey McRae
10d9678b3d [host] Windows: improved service restart detection 2020-08-11 12:47:50 +10:00
Geoffrey McRae
e08d3afdbc [host] Windows: added missing service files 2020-08-11 12:27:04 +10:00
Geoffrey McRae
9a6b598438 [host] Windows: Implemented service to launch LG as the SYSTEM user
Experimental, use at your own peril!

This commit adds the ability for the LG host to install and launch with
Windows as a system service.

To install simply run `looking-glass-host.exe InstallService` or
conversely to uninstall `looking-glass-host.exe UninstallService`.
2020-08-11 12:22:22 +10:00
Geoffrey McRae
1d6d640b6e [host] dxgi: default to using the acquire lock 2020-08-07 20:31:46 +10:00
Geoffrey McRae
977d7b277d [host] dxgi: boost GPU thread priority if possible 2020-08-07 19:44:00 +10:00
Geoffrey McRae
67dec216d2 [host] search the applications local directory for the config 2020-05-30 12:31:26 +10:00
Geoffrey McRae
bc7871f630 [c-host] renamed finall to just plain host 2020-05-25 13:42:43 +10:00