The extended information provided by VerifyCertificateEx and
VerifyChangedCertificateEx is now exploited by the new functions
client_cli_verify_certificate_ex and client_cli_verify_changed_certificate_ex.
The old callbacks now print out deprecation warnings to inform the
user and developer about this deprecation.
To fix#4825 GFX functions must now aquire a lock before accessing surfaces.
This prevents simultaneous update of internal data by client and gfx threads.
Also enforce return value checks, where not already done.
Added a library internal function freerdp_settings_set_default_order_support
which initializes the OrderSupport array of settings.
Now clients no longer need to set this up on their own, if they
do not implement their own hardware accelerated order processing.
With #4950 client side pointer implementation was made optional.
This addresses an issue that each client had to call
pointer_cache_register_callbacks on its own.
Icons on X11 windows are configured using the _NET_WM_ICON property
described in Extended Window Manager Hints. Here we implement converison
from DIB bitmaps used by RAIL to the format expected by _NET_WM_ICON,
and actually set the icon for RAIL app windows.
Both DIB format and _NET_WM_ICON (or rather, Xlib) are weird. Let's
start with RAIL's format. That's the one used in BMP and ICO formats
on Windows. It has some strange properties but thankfully FreeRDP's
freerdp_image_copy() can handle most of them for us. (With an exception
of monochrome and 16-color formats that it does not support. Sorry, but
I'm too lazy to fix them. They are not seem to be used by any real
application either.) The one thing that it can't do is to apply the
alpha transparency bitmask so we have to do it manually. This instantly
reminds us that DIB format has HISTORY: it's vertically flipped and
each must be padded to 4 bytes. Both these quirks having reasonable
(for a certain definition of 'reason') explanations. Such is life.
(Also, 8-bit images require a color palette which we must fill in.)
So okay, now comes _NET_WM_ICON. It is more sane (or rather, easier to
deal with). The bitmap is represented with a tiny [width, height] header
followed by an array of pixels in ARGB format. There is no padding, no
weird color formats. But here's a catch: you can't simply take the
output of freerdp_image_copy() and cast to (unsigned char*) of colors.
We have to allocate an array of C's longs and copy the pixels there,
because that's what Xlib expects (and this is mentioned in the spec).
Simply casting an array of bytes causes crashes on 64-bit systems.
So don't try to cheat or "optimize" and read the docs, kids.
Note that XFlush() call after XChangeProperty(). It's there because it
seems to helps see the icon quicker with Unity on Ubuntu 14.04. I don't
know why. (And Unity does not support _NET_WM_ICON officially. But it
sorta kinda works sometimes.)
Oh, and while we're here, delete some old, unused, and commented out
code that was setting window icons in the past. It's not needed anymore.
This commit adds a cache for RAIL application icons. It is (surpisingly)
used to cache icons for remote applications. This mechanism is described
in MS-RDPERP 3.1.1.2 Icon Cache Support and related items.
Note that some (actually, most) of the icons are not cached. These are
marked with CacheId == 0xFF. In order to keep the code clean we do not
introduce a special case and instead use a 'scratch' icon and simply
pretend to return an xfRailIcon from cache.
We're going to set icons via _NET_WM_ICON property which explains
why we use "long" values to store pixel data. The icon conversion
is not implemented in this commit, it's only stubs.
However, we do implement processing of window information orders that
contain new icons or cached references to previously sent icons. Note
that it is important to not fail (i.e., to not return FALSE) if we
cannot find a window for the icon by its ID. The server occasionally
likes to be slow or something and send icon updates for nonexistent
windows. This behavior is mandated by the spec, too:
MS-RDPERP 3.2.5.1.6 Processing Window Information Orders
Upon receipt of a Window Information Order for an icon or
cached icon, as specified in sections 2.2.1.3.1.2.2 and
2.2.1.3.1.2.3, the client SHOULD locate the local RAIL window
that corresponds to the WindowId reported in the Hdr field
and apply the icon updates to the RAIL window. If no such
window can be found, the client SHOULD ignore the order.
Indeed, we silently ignore such orders now.
The async transport option is broken by design.
If used the main loop is called from the transport thread and the
main thread of the application.
Unless the transport layer is refactored to just work on queues
(input and output) this option will never work, therefore remove it.
Add code annotation to silence false positive warnings from covscan
due to omitting termination \0.
buffer_size: Calling strncpy with a source string whose length (13 chars) is greater than or equal to the size argument (13) will fail to null-terminate "&tmp[cs]".
Remember the callback state to avoid calling reerdp_channels_post_connect
before the corresponding client callback has benn called.
This might happen during redirection and reconnection.
1. Fix fullscreen toggle for window managers that do not have multimonitor fullscreen extension support
2. Fix current monitor detection
3. Fix calculation of vscreen boundaries when single monitor is being used
4. Fix start up position of window when starting (used to always go to the top left corener, now centered)
Still a problem:
1. Window decorations do not show when going windowed
2. Smart resizing makes i3 really sad :(
3. Moving window across monitors and going fullscreen always maximizes on startup screen (when not using /multimon)
X11 is asynchronous, so events arriving in xf_event_PropertyNotify
may access a window that has already been discarded. Check that before
reading properties.
issue detected by cppcheck
[channels/drive/client/drive_main.c:454] -> [channels/drive/client/drive_main.c:443]: (warning) Either the condition '!irp' is redundant or there is possible null pointer dereference: irp.
[client/X11/xf_window.c:582] -> [client/X11/xf_window.c:580]: (warning) Either the condition '!xfc' is redundant or there is possible null pointer dereference: xfc.
[winpr/libwinpr/path/test/TestPathShell.c:40] -> [winpr/libwinpr/path/test/TestPathShell.c:43]: (warning) Either the condition '!path' is redundant or there is possible null pointer dereference: path.
[winpr/libwinpr/path/test/TestPathShell.c:49] -> [winpr/libwinpr/path/test/TestPathShell.c:52]: (warning) Either the condition '!path' is redundant or there is possible null pointer dereference: path.
The generator tool is called by CMake and is incompatible
with certain options. Therefore this commit
* removes WinPR dependency
* removes -fsanitize=* from CFLAGS
Implements the decoding of video streams using common H264 decoders. We also implement
a trivial feedback algorithm.
Sponsored by: Rangee GmbH (http://www.rangee.de)
When using pthread_once with destructors they are only called,
if each thread (including the main thread) is exited with pthread_exit.
Introducing winpr_exit as a wrapper for that purpose.
Move the cmd struct to a extra header file. This allows it to only
include the header file in generate_argument_docbook.c and therefore
remove a linker dependencies.
Since ec027bf dynamic resolution is broken when used with egfx. Before that commit
we were tracking a server sent resize by setting a DesktopResize callback. This callback
is called when the desktop is resized by the server. Anyway the problem was that when this
callback is called, the activation sequence is not always completed, which were leading to
some freeze with 2012r2 servers (sending packets before the sequence is finished).
So with the faulty commit, we are tracking server resizes by subscribing to the Actived
event, that is called at the end of a reactivation sequence, so we're sure to not send packets
when not fully activated.
Anyway the issue that shows on (#4330) is that when you use egfx, no reactivation sequence happens,
the server only sends a ResetGraphics message with the new size, and so we miss the resized event.
This fix introduces a new GraphicsReset event, makes the display channel subscribe to that event,
and react accordingly.
Fix a too restrictive detection of XRandr support.
Set more monitor's attributes like physical size and orientation when XRandr is
available.
Set [desktop|device]ScaleFactor when it has been given on the command line, this
should fix#4324.
freerdp_disconnect must only be called, if the connection
was established. Otherwise all resources are cleaned up twice
leading to double free and other issues.
Some window managers do not support _NET_WM_FULLSCREEN_MONITORS.
In that case multimonitor fullscreen does not properly work, so
add a path resizing the window over all screens instead.
Based on @erbth pull request, adding proper X11 atom checks.
If the display channel is available we use it to allow the user to resize the
xfreerdp window. When the window is resized we announce a new monitor layout and
the server reacts by doing a reactivation sequence to the new size.
The minimum window size is limited to 300x300 as 2012 servers crash horribly
if we send them a smaller layout.
This patch contains several improvements:
- add missing colons before format strings
- always print format string after argument
- do not duplicate format string before description
- use <replaceable> only for variables in format string
- use +/- for boolean arguments
- print also default value for all kinds of arguments
If the size parameter is used with a percentages like /size:50% now
an additional 'w' or 'h' can be appended (like /size:50%w) to specify
where the percentage should be applied. If both or none are set the
behavior is like it was before and the percentage is applied to width
and height.
* client/x11: Fix colors on big endian
The bitmaps are recieved in little endian byte order (LSBFirst in terms
of X11). This is a problem on systems, where bitmaps are expected in big
endian byte order (MSBFirst). X11 client tries to handle this situation
by different color formats (e.g. RGBX vs. BGRX), but this doesn't work.
BGRX is not MSBFirst variant of RGBX, it should be XRGB. But this would
work only for 32/24 depths, where color channels matches bytes. Let's
say to the XServer that all the bitmaps are in LSBFirst encoding instead
of changing the color formats on big endian systems.
https://github.com/FreeRDP/FreeRDP/issues/2520
* client/x11: Fix cursor color on big endian
The cursor color is wrong on big endian systems. It is not probably
possible to force bitmap_order for XcursorImage as it is possible for
XImage. Fortunately, cursors are always 32 bit so we can use ABGR
instead of BGRA to deal with.
https://github.com/FreeRDP/FreeRDP/issues/2520
* client/x11: Fix comment indentation
The comment has wrong indentation for some reason, let's fix it.
* client/x11: Fix BGR vs. RGB detection
The BGR vs. RGB detection code is leftover from history and I am conviced
that it is wrong with the current color handling, where invert flag is TRUE
by default. However, I suppose that the detection still makes sense and
XServer may use the inverted formats in some cases. Maybe we can force XServer
to use our masks somehow, but let's just fix the value to FALSE now.
* client/x11: Remove unused color shifts
The color shifts are lefover from history and are not used in current
code. Let's remove them.
Arguments of xf_Bitmap_SetSurface are not checked before use currently
which may lead to segfaults. It may happen if bitmap is not found in a
cache from some reason. Let's check the arguments before use similarly
as it is done in client/Windows/wf_graphics.c in order to avoid segfaults.
https://github.com/FreeRDP/FreeRDP/issues/4117
xf_FixWindowCoordinates occasionally set the dimensions of the window to invalid values (0) because the minimum value check was done at the beginning of the method rather than at the end
With some usb barcode scanners, repeated characters do not appear in the freerdp session.
It looks like this is because the KeyRelease signal is not sent for the first character.
Removing this if check fixes the problem.
The data provided by local applications can be actually encoded in
UTF-16 (e.g., Firefox does this to HTML). UTF-16 allows embedded null
bytes so we should not use strlen() to fix up the data. The HTML format
synthesizer can handle trailing null bytes just fine and can detect
whether it deals with UTF-8 or UTF-16.
Most of the functions is this file are internal-use callbacks so they do
not need to be exported from the compilation unit. Mark functions static
as appropriate.
The H264 context is surface specific, so in multi-monitor (with multiple surfaces)
the decoding was failing. This patch fixes that by introducing a surface specific
h264 context.
XSelection protocol does not define any global clipboard as there is on
Windows. Instead each window has its own property for clipboard content
(like CLIPBOARD or PRIMARY) and there is a global notion of clipboard
ownership. Only one window can claim ownership of some clipboard type
at the moment.
FreeRDP uses CLIPBOARD for clipboard transfers (it's the one used by
applications when Ctrl+V is pressed). For regular desktop sessions the
session window itself is used for clipboard interactions via
xfc->drawable field. However, for remote app session there is no session
window. We cannot use the current remote app window as it may change or
be destroyed without closing the session. We also cannot use the root
window as it is already used for CF_RAW transfer protocol.
Therefore we create a simple dummy window to put into xfc->drawable for
this exact job: to act as a clipboard vessel on behalf of the entire
remote app session.
xf_create_window() usually creates the window as we immediately start in
RAIL mode when possible. xf_rail_enable_remoteapp_mode() is invoked only
when autologin failed or remote desktop had to show the session window
to the user for some reason.
The surface's damage region is not relative to the output but
lives in its own universe starting at origin 0,0.
Also fixed the drawing coordinates used in the XRENDER code path
which is used with /smart-sizing
Now that we've got everything in place to handle files it's time to tell
the server that we can actually do this.
MS-RDPECLIP 3.2.5.1.3 Sending a Client Clipboard Capabilities PDU asks
us politely to not advertise file clipping support if the server did not
do that itself. Thus we need to parse the capabilities sent by the
server and take a note whether it supports file clipping.
There is also no point in advertising file clipping support if
wClipboard failed to initalize any local file subsystem, in which case
we cannot handle files for real. Take a note of this as well when we
register the file formats.
If everthing is really in place and the stars shine upon us then we are
allowed to set CB_STREAM_FILECLIP_ENABLED in the capabilities. There is
no command line switch to disable file clipping (and there is little
reason to), so we always support it if we can.
We also set an additional flag CB_FILECLIP_NO_FILE_PATHS flag in the
capabilities because it seems to be necessary for the server to send the
"FileGroupDescriptorW" format to us. Otherwise the server will only send
the old CF_HDROP format which can't be handled well without enabled disk
drive redirection and a properly negotiated server-side temporary
directory.
xf_cliprdr_server_file_contents_request() handles the
CLIPRDR_FILECONTENTS_REQUEST which is sent by the server to retrieve the
size or data of a single file. The server can only request one of these
things at a time, do confirm this.
The actual handling of the requests is done by wClipboardDelegate. In
order to handle its resposes we register a bunch of our own callbacks
which simply pass the responses to the server.
In case of an error we should always send a CB_RESPONSE_FAIL to the
server. If we do not then the file transfer progress dialog may end up
hanging in the remote session forever until the user logs out or kills
explorer.exe. We do wnat this.
To handle a new format we should first be able to transform the format
name from the local clipboard owner into its remote representation. In
our case this will be trasforming the "text/uri-list" target into the
"FileGroupDescriptorW" named format.
Add CB_FORMAT_TEXTURILIST to identify the local format by its ID during
the data conversion step. This numeric ID has nothing to do with the ID
which will be sent to server. It's a bit weird, but that's how XFreeRDP
works.
After that add a new client format with this ID and appropriate local
and remote format names (in atom and formatName fields respectively).
Do this only if wClipboard actually supports "text/uri-list" format.
(It could fail to initialize the local file subsystem, in which case
it will fail all file-related requests and there would be no point in
advertising the file format support in the first place.)
Finally, handle the actual format data request for a new named format
in xf_cliprdr_process_requested_data(). Remember to convert the
FILEDESCRIPTOR array we receive from wClipboard into the
CLIPRDR_FILELIST expected by the server. Also take care to not leak
memory during this conversion.
Note that this handles only the CLIPRDR_FORMAT_DATA_REQUEST. The server
is still not able to retrieve the file content as this is done via a
separate request-reply sequence.
Unify error handling in xf_clipboard_new() by using a common cleanup
code path. This fixes a leak of clipboard->system and format names when
an error occurs during initialization.
Also reformat the code to fit into 100 column limit without this line
break insanity and with improved readability.
I do not particularly like to use a variable with such a descriptive
name 'n' far away in the error handling part, but its short name is
kinda important for readability so let's keep it as is.
- draw only the updated region in the gdi and x11 surface bits implementation
- don't repeatedly call IsProcessorFeaturePresentEx in rfx rlgr decoder
- fix ugly and unaligned profiler print layout and remove an unnecessary value
FreeRDP uses clipboard->data to cache the result of the Windows->X11
clipboard format conversion, and xf_cliprdr_process_selection_request()
immediately provides this result to local applications if they request
the same clipboard format again. This saves us a possibly costly
conversion in case where the user pastes data repeatedly.
However, this caching mechanism did not support raw clipboard transfers
where the unmodified data is passed between two FreeRDP clients. We use
the same XClipboard protocol for this, so the clipboard->data is in play.
We clear the cached value when we receive new data from the server, so
initially raw transfers are fine. But if some local application (e.g.,
a clipboard manager) asks for some data format before the data is pasted
into the second FreeRDP session then clipboard->data will contain the
*converted* data. And this converted cached data will be provided to
the second FreeRDP session as a part of the raw data transfer. Instead
we should have provided the original data.
In order to achieve this we are now caching the original data in the
same way as the converted one, and the original data is now correctly
provided when the second FreeRDP session asks for a raw data transfer.
[client/X11/xf_rail.c:205] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:206] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:207] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:208] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:215] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:216] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:217] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
[client/X11/xf_rail.c:218] -> [client/X11/xf_rail.c:220]: (warning) Either the condition 'if(appWindow)' is redundant or there is possible null pointer dereference: appWindow.
