The VNC ACL concept has been replaced by the pluggable "authz" framework
which does not use monitor commands.
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
A long time ago the VNC server code had some memory corruption
fixes done in:
commit bea60dd767
Author: Peter Lieven <pl@kamp.de>
Date: Mon Jun 30 10:57:51 2014 +0200
ui/vnc: fix potential memory corruption issues
One of the implications of the fix was that the VNC server would have a
thin black bad down the right hand side if the guest desktop width was
not a multiple of 16. In practice this was a non-issue since the VNC
server was always honouring a guest specified resolution and guests
essentially always pick from a small set of sane resolutions likely in
real world hardware.
We recently introduced support for the extended desktop resize extension
and as a result the VNC client has ability to specify an arbitrary
desktop size and the guest OS may well honour it exactly. As a result we
no longer have any guarantee that the width will be a multiple of 16,
and so when resizing the desktop we have a 93% chance of getting the
black bar on the right hand size.
The VNC server maintains three different desktop dimensions
1. The guest surface
2. The server surface
3. The client desktop
The requirement for the width to be a multiple of 16 only applies to
item 2, the server surface, for the purpose of doing dirty bitmap
tracking.
Normally we will set the client desktop size to always match the server
surface size, but that's not a strict requirement. In order to cope with
clients that don't support the desktop size encoding, we already allow
for the client desktop to be a different size that the server surface.
Thus we can trivially eliminate the black bar, but setting the client
desktop size to be the un-rounded server surface size - the so called
"true width".
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210311182957.486939-5-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The WMVi message is supposed to provide the same width/height
information as the regular desktop resize and extended desktop
resize messages. There can be times where the client width and
height are different from the pixman surface dimensions.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210311182957.486939-4-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We plan framebuffer update rects based on the VNC server surface. If the
client doesn't support desktop resize, then the client bounds may differ
from the server surface bounds. VNC clients may become upset if we then
send an update message outside the bounds of the client desktop.
This takes the approach of clamping the rectangles from the worker
thread immediately before sending them. This may sometimes results in
sending a framebuffer update message with zero rectangles.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210311182957.486939-3-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This adds trace points for desktop size and audio related messages.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210311182957.486939-2-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
ui/cocoa used to call exit immediately after calling
qemu_system_shutdown_request, which prevents QEMU from actually
perfoming system shutdown. Just sleep forever, and wait QEMU to call
exit and kill the Cocoa thread.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210219111652.20623-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
OpenGL ES does not support conversion from the given data format
to the internal format with glTexImage2D.
Use the given data format as the internal format, and ignore
the given alpha channels with GL_TEXTURE_SWIZZLE_A in case the
format contains alpha channels.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210219094803.90860-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
With the new "password-secret" option, there is no reason to use the old
inecure "password" option with -spice, so it can be deprecated.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210311114343.439820-4-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently when using SPICE the "password" option provides the password
in plain text on the command line. This is insecure as it is visible
to all processes on the host. As an alternative, the password can be
provided separately via the monitor.
This introduces a "password-secret" option which lets the password be
provided up front.
$QEMU --object secret,id=vncsec0,file=passwd.txt \
--spice port=5901,password-secret=vncsec0
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210311114343.439820-3-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently when using VNC the "password" flag turns on password based
authentication. The actual password has to be provided separately via
the monitor.
This introduces a "password-secret" option which lets the password be
provided up front.
$QEMU --object secret,id=vncsec0,file=passwd.txt \
--vnc localhost:0,password-secret=vncsec0
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210311114343.439820-2-berrange@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
ui/cocoa deassociates the mouse input and the mouse cursor
position only when relative movement inputs are expected. Such
inputs may let the mouse cursor leave the view and cause undesired
side effects if they are associated. On the other hand, the
problem does not occur when inputting absolute points, and the
association allows seamless cursor movement across views.
However, the synchronization of the association and the expected
input type was only done when grabbing the mouse. In reality, the
state whether the emulated input device expects absolute pointing
inputs or relative movement inputs can vary dynamically due to
USB device hot-plugging, for example.
This change adds association state updates according to input type
expectation changes. It also removes an internal flag representing
the association state because the state can now be determined with
the current input type expectation and it only adds the
complexity of the state tracking.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210222150714.21766-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
ui/cocoa does not receive NSEventTypeFlagsChanged when it is not active,
and the modifier state can be desynchronized in such a situation.
[NSEvent -modifierFlags] tells whether a modifier is *not* pressed, so
check it whenever receiving an event and clear the modifier if it is not
pressed.
Note that [NSEvent -modifierFlags] does not tell if a certain modifier
*is* pressed because the documented mask for [NSEvent -modifierFlags]
generalizes left shift and right shift, for example. CapsLock is the
only exception. The pressed state is synchronized only with
NSEventTypeFlagsChanged.
This change also removes modifier keys from keycode map. If they
are input with NSEventTypeKeyDown or NSEventTypeKeyUp, it leads to
desynchronization. Although such a situation is not observed, they are
removed just in case.
Moreover, QKbdState is introduced for automatic key state tracking.
Thanks to Konstantin Nazarov for testing and finding a bug in this
change:
https://gist.github.com/akihikodaki/87df4149e7ca87f18dc56807ec5a1bc5#gistcomment-3659419
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210310144602.58528-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The first argument of the executable was used to get its path, but it is
not reliable because the executer can specify any arbitrary string. Use the
interfaces provided by QEMU and the platform to get those paths.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210309122226.23117-2-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
kCGColorSpaceGenericRGB | Apple Developer Documentation
https://developer.apple.com/documentation/coregraphics/kcgcolorspacegenericrgb
> Deprecated
> Use kCGColorSpaceSRGB instead.
This change also removes the legacy color space specification for
PowerPC.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210305121304.65096-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
c821a58ee7 ("ui/console: Pass placeholder surface to display")
eliminated the possibility that NULL is passed as surface to
dpy_gfx_switch and removed some NULL checks from gd_switch, but the
removal was not thoroughly. Remaining NULL checks were confusing for
Coverity and probably also for humans. This change removes those NULL
checks.
Reported-by: Coverity (CID 1448421)
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210308140713.17901-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The 'running' argument from VMChangeStateHandler does not require
other value than 0 / 1. Make it a plain boolean.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20210111152020.1422021-3-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Follow the inclusive terminology from the "Conscious Language in your
Open Source Projects" guidelines [*] and replace the words "whitelist"
appropriately.
[*] https://github.com/conscious-lang/conscious-lang-docs/blob/main/faq.md
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210303184644.1639691-2-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
ui/console used to accept NULL as graphic console surface, but its
semantics was inconsistent among displays:
- cocoa and gtk-egl perform NULL dereference.
- egl-headless, spice and spice-egl do nothing.
- gtk releases underlying resources.
- sdl2-2d and sdl2-gl destroys the window.
- vnc shows a message, "Display output is not active."
Fortunately, only virtio-gpu and virtio-gpu-3d assign NULL so
we can study them to figure out the desired behavior. They assign
NULL *except* for the primary display when the device is realized,
reset, or its scanout is disabled. This effectively destroys
windows for the (uninitialized) secondary displays.
To implement the consistent behavior of display device
realization/reset, this change embeds it to the operation
switching the surface. When NULL was given as a new surface when
switching, ui/console will instead passes a placeholder down
to each display listeners.
sdl destroys the window for a secondary console if its surface is a
placeholder. The other displays simply shows the placeholder.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210225101316.83940-2-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The surfaces created with former qemu_create_message_surface
did not display the content from the guest and always contained
simple messages describing the reason.
A display backend may want to hide the window showing such a
surface. This change renames the function to
qemu_create_placeholder_surface, and adds "placeholder" flag; the
display can check the flag to decide to do anything special like
hiding the window.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210225101316.83940-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This has the following visible changes:
- GBM is required only for OpenGL dma-buf.
- X11 is explicitly required by gtk-egl.
- EGL is now mandatory for the OpenGL displays.
The last one needs some detailed description. Before this change,
EGL was tested only for OpenGL dma-buf with the check of
EGL_MESA_image_dma_buf_export. However, all of the OpenGL
displays depend on EGL and EGL_MESA_image_dma_buf_export is always
defined by epoxy's EGL interface.
Therefore, it makes more sense to always check the presence of EGL
and say the OpenGL displays are available along with OpenGL dma-buf
if it is present.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210223060307.87736-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
A display can receive an image which its stride is greater than its
width. In fact, when a guest requests virtio-gpu to scan out a
smaller part of an image, virtio-gpu passes it to a display as an
image which its width represents the one of the part and its stride
equals to the one of the whole image.
This change makes ui/cocoa to cover such cases.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210222144012.21486-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When using the GTK UI with libvte, multicharacter keystrokes are not
sent correctly (such as arrow keys). gd_vc_in should check the
CharBackend's can_receive instead of assuming multiple characters can be
received. This is not an issue for e.g. the SDL UI because
qemu_chr_be_write is called with len=1 for each character (SDL sends
more than once keystroke).
Modify gd_vc_in to call qemu_chr_be_write multiple times if necessary.
Buglink: https://bugs.launchpad.net/qemu/+bug/1407808
Signed-off-by: Zack Marvel <zpmarvel@gmail.com>
Message-Id: <20210221170613.13183-2-zpmarvel@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The detections of [NSView -enterFullScreen:] and
[NSView -exitFullScreen:] were wrong. A detection is coded as:
[NSView respondsToSelector:@selector(exitFullScreenModeWithOptions:)]
but it should be:
[NSView instancesRespondToSelector:@selector(exitFullScreenModeWithOptions:)]
Because of those APIs were not detected, ui/cocoa always falled
back to a borderless window whose frame matches the screen to
implement fullscreen behavior.
The code using [NSView -enterFullScreen:] and
[NSView -exitFullScreen:] will be used if you fix the detections,
but its behavior is undesirable; the full screen view stretches
the video, changing the aspect ratio, even if zooming is disabled.
This change removes the code as it does nothing good.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210220013138.51437-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
It is not used, and it is unlikely that a new use case will emerge
anytime soon because the scope of OpenGL contexts are limited due to
the nature of the frontend, VirGL, processing simple commands from the
guest.
Remove the function and ease implementing a new OpenGL backend a little.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210219094702.90789-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There is no need of dynamic allocation as dcl is a small singleton.
Static allocation reduces code size and makes hacking with ui/cocoa a
bit easier.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210219084419.90181-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Old Macs were not equipped with mice with an ability to perform
"right clicks" and ui/cocoa interpreted left button down with
left command key pressed as right button down as a workaround.
The workaround has an obvious downside: you cannot tell the guest
that the left button is down while the left command key is
pressed.
Today, Macs has trackpads, Apple Mice, or Magic Mice. They are
capable to emulate right clicks with gestures, which also allows
to perform right clicks on "BootCamp" OSes like Windows.
By removing the workaround, we overcome its downside, and provide
a behavior consistent with BootCamp.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210212000706.28616-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When qemu is built with modules, but a given module doesn't load
qemu should handle that gracefully. When ui-spice-core.so isn't
able to be loaded and qemu is invoked with -display spice-app or
-spice, qemu will dereference a null pointer. With this change we
check the pointer before dereferencing and error out in a normal
way.
Signed-off-by: Bruce Rogers <brogers@suse.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210213032318.346093-1-brogers@suse.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The old CocoaView had an idea of synchronizing the host window
configuration and the guest screen configuration. Here, the guest screen
actually means pixman image given ui/cocoa display implementation.
However, [CocoaView -drawRect:] directly interacts with the pixman
image buffer in reality. There is no such distinction of "host" and
"guest." This change removes the "host" configuration and let drawRect
consistently have the direct reference to pixman image. It allows to
get rid of the error-prone "sync" and reduce code size a bit.
Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20210212000629.28551-1-akihiko.odaki@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This solves the client having slow/outdated VGA/2D console. It's a
regression introduced when the code was switched to render it via opengl
in commit 4423184376 ("spice/gl: render DisplaySurface via opengl")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210216092056.2301293-2-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Since the introduction of spice/virgl support in commit
474114b7 ("spice: add opengl/virgl/dmabuf support"), the drawing isn't
being flushed before notifying the client. This results in
outdated/sluggish drawing on client side, in particular when using the
Linux console.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210216092056.2301293-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Displaying rendered resources requires blocking qemu GPU to avoid extra
framebuffer copies. For an external display, via Spice currently, there
is a callback to block/unblock the rendering in the same thread.
But with the vhost-user-gpu backend, the qemu process doesn't handle
the rendering itself, and the blocking callback isn't effective.
Instead, the backend must be notified when the display code is done.
Fix this by adding a new GraphicHwOps callback to indicate the GL state
is flushed, and we are done manipulating the shared GL resources. Call
it from gtk and spice display.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210204105232.834642-19-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
GtkGLArea is used on wayland, where EGL is usually available.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210204105232.834642-17-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This check is currently limited. It only is used by vhost-user-gpu (not
by vfio-display), and will print an error repeatedly during run-time.
We are going to dissociate the GL context from the
DisplayChangeListener, and listeners may come and go. The following
patches will address this differently.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210204105232.834642-10-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There are no users left.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210204105232.834642-7-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
QEMU used to run qemu_spice.display_init() before vm_start(), and
QXL/display interfaces where started then. Now, vm_start() happens
before QXL/display interfaces are added and Spice server doesn't
automatically start them in this case (fixed in spice git)
Fixes Spice regression introduced after 5.2, with refactoring commits
b4e1a34211 ("vl: remove separate preconfig main_loop") and
facf7c60ee ("vl: initialize displays _after_ exiting preconfiguration"),
probably others.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210129152351.161971-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Primarily this is to pull in a fix for Win32 keycodes. The other useful
change is the removal of build timestamp from generated files which is
desirable for reproducable builds.
The make rules need updating due to slightly changed CLI syntax - more
args must now come after the command name.
6119e6e19a050df847418de7babe5166779955e4 Fix scan codes for Korean keys
685684a8404301780714e8a89a871981e7cae988 Fix argument order in output headers
b3774853042c951b200d767697285781cc59a83c Add HTML entries for Korean layout keys
8e54850d800e4697a2798fb82ac740e760f8530b Add macOS entries for Japanese keyboards
27acf0ef828bf719b2053ba398b195829413dbdd Fix win32 keycode for VK_OEM_102
317d3eeb963a515e15a63fa356d8ebcda7041a51 Add support for generating RST formatted docs pages
7381b9bfadd31c4c9e9a10b5bb5032f9189d4352 Introduce separate args for title & subtitle with docs generator
6280c94f306df6a20bbc100ba15a5a81af0366e6 keymap-gen: Name sections in pod output
df4e56f8fab65ba714ec18f4e7338a966a1620ad Add an empty meson project
16e5b0787687d8904dad2c026107409eb9bfcb95 remove buildtime from generated files
044f21dd0d4f62519aae9f1d53a026407a0b664f add header file generators
7779876a6b06755e3bb2c94ee3ded50635bcb0fa c++: add extern declaration to the generated file
0e0a317889464397d6f1ae03aad0d2ca593aab04 move CLanguageGenerator closer to CLanguageGenerator itself
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
These cases require a bit more thought to review; in each case, the
code was appending to a list, but not with a FOOList **tail variable.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210113221013.390592-6-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Flawed change to qmp_guest_network_get_interfaces() dropped]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Unlike other pseudo-encodings these don't break gtk-vnc
because older versions don't suport the extended desktop
resize extension in the first place.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210125104041.495274-3-kraxel@redhat.com>
This reverts commit 9e1632ad07.
Older gtk-vnc versions can't deal with non-incremental update
requests sending pseudo-encodings, so trying to send full server
state (including desktop size, cursor etc. which is done using
pseudo-encodings) doesn't fly. Return to old behavior to send
those only for new connects and when changes happen.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20210125104041.495274-2-kraxel@redhat.com>
Use qemu_opts_parse_noisily now that HMP does not call
vnc_parse anymore.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210120144235.345983-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The extended desktop resize encoding adds support for (a) clients
sending resize requests to the server, and (b) multihead support.
This patch implements (a). All resize requests are rejected by qemu.
Qemu can't resize the framebuffer on its own, this is in the hands of
the guest, so all qemu can do is forward the request to the guest.
Should the guest actually resize the framebuffer we can notify the vnc
client later with a separate message.
This requires support in the display device. Works with virtio-gpu.
https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#extendeddesktopsize-pseudo-encoding
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210112134120.2031837-4-kraxel@redhat.com
qemu sends various state info like current cursor shape to newly connected
clients in response to a set_encoding message. This is not correct according
to the rfb spec. Send that information in response to a full (incremental=0)
framebuffer update request instead. Also send the resize information
unconditionally, not only in case of an actual server-side change.
This makes the qemu vnc server conform to the spec and allows clients to
request the complete vnc server state without reconnect.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210112134120.2031837-3-kraxel@redhat.com
Move the check whenever a cursor exists into the vnc_cursor_define()
function so callers don't have to do it.
Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20210112134120.2031837-2-kraxel@redhat.com
The "XVP" (Xen VNC Proxy) extension defines a mechanism for a VNC client
to issue power control requests to trigger graceful shutdown, reboot, or
hard reset.
This option is not enabled by default, since we cannot assume that users
with VNC access implicitly have administrator access to the guest OS.
Thus is it enabled with a boolean "power-control" option e.g.
-vnc :1,power-control=on
While, QEMU can easily support shutdown and reset, there's no easy way
to wire up reboot support at this time. In theory it could be done by
issuing a shutdown, followed by a reset, but there's no convenient
wiring for such a pairing in QEMU. It also isn't possible to have the
VNC server directly talk to QEMU guest agent, since the agent chardev is
typically owned by an external mgmt app.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
[ kraxel: rebase to master ]
[ kraxel: add missing break ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In vnc_display_open(), if tls-creds is enabled, do object_ref(object
ref 1->2) for tls-creds. While in vnc_display_close(), object_unparent
sets object ref to 1(2->1) and unparent the object for root.
Problem:
1. the object can not be found from the objects_root, while the object
is not finalized.
2. the qemu_opts of tls-creds(id: creds0) is not deleted, so new tls
object with the same id(creds0) can not be delete & add.
Signed-off-by: Zihao Chang <changzihao1@huawei.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210111131911.805-1-changzihao1@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When running QEMU's GTK UI without EGL or OGL, the
gd_monitor_update_interval function gets executed and the display refresh
rate gets updated accordingly. However, when using EGL or just regular
OGL, the function never gets executed.
Which is why I decided that the function should be in gd_egl_refresh
where the display output gets updated, in the same vain as how it's done
for normal GTK UIs (aka. those without EGL) - in it's display refresh
function.
Since the gd_monitor_update_interval function now is exposed, we are
going to use it to update the refresh rate.
Signed-off-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Message-Id: <20210114140153.301473-3-pavlica.nikola@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The gd_egl_refresh function, as the name suggests, is responsible for
refreshing displays when using EGL graphics with QEMU's GTK UI. This is
a perfect candidate for a function to update the refresh rate in.
Since gd_monitor_update_interval is inaccessible from the gd_egl_refresh
function, we need to expose/globalize it in the include/ui/gtk.h file.
Signed-off-by: Nikola Pavlica <pavlica.nikola@gmail.com>
Message-Id: <20210114140153.301473-2-pavlica.nikola@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Limit the virtual console maximum update interval to
GUI_REFRESH_INTERVAL_DEFAULT. This papers over a integer
overflow bug in gtk3 on Windows where the reported monitor
refresh frequency can be much smaller than the real refresh
frequency.
The gtk bug report can be found here:
https://gitlab.gnome.org/GNOME/gtk/-/issues/3394
On my Windows 10 system gtk reports a monitor refresh rate of
1.511Hz instead of 60.031Hz and slows down the screen update
rate in qemu to a crawl. Provided you are affected by the gtk
bug on Windows, these are the steps to reproduce the issue:
Start qemu with -display gtk and activate all qemu virtual
consoles and notice the reduced qemu refresh rate. Activating
all virtual consoles is necessary, because gui_update() in
ui/console.c uses the minimum of all display change listeners
update interval and not yet activated virtual consoles report
the default update interval (30ms).
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20201213165724.13418-3-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The type of the variable window is GtkWidget. Rename the variable
from window to widget, because windows and widgets are different
things.
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20201213165724.13418-2-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Redefining SI prefixes is always wrong. 1s has per definition
1000ms. Remove the misnamed named constant and replace it with
a comment explaining the frequency to period conversion in two
simple steps. Now you can cancel out the unit mHz in the comment
with the implicit unit mHz in refresh_rate_millihz and see why
the implicit unit ms for update_interval remains.
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-Id: <20201213165724.13418-1-vr_qemu@t-online.de>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This also allows removing CONFIG_NEED_X11, all the ingredients
can be computed easily in meson.build.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
For now move the logic verbatim. GTK+ actually has a hard requirement
on X11 if gtk+x11 is present, but we will sort that out later.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
CONFIG_GTK_GL is defined if OpenGL is present and GTK+
is 3.16 or newer. Since GTK+ 3.22 is the minimum supported
version, just use CONFIG_OPENGL instead.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
crypto/tlscreds.h includes GnuTLS headers if CONFIG_GNUTLS is set, but
GNUTLS_CFLAGS, that describe include path, are not propagated
transitively to all users of crypto and build fails if GnuTLS headers
reside in non-standard directory (which is a case for homebrew on Apple
Silicon).
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20210102125213.41279-1-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
QEMU documentation can't be opened if QEMU is run from build tree
because executables are placed in the top of build tree after conversion
to meson.
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210108213815.64678-1-r.bolshakov@yadro.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is the result of running the timer-del-timer-free.cocci
script on the whole source tree.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
Anywhere we create a list of just one item or by prepending items
(typically because order doesn't matter), we can use
QAPI_LIST_PREPEND(). But places where we must keep the list in order
by appending remain open-coded until later patches.
Note that as a side effect, this also performs a cleanup of two minor
issues in qga/commands-posix.c: the old code was performing
new = g_malloc0(sizeof(*ret));
which 1) is confusing because you have to verify whether 'new' and
'ret' are variables with the same type, and 2) would conflict with C++
compilation (not an actual problem for this file, but makes
copy-and-paste harder).
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20201113011340.463563-5-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
[Straightforward conflicts due to commit a8aa94b5f8 "qga: update
schema for guest-get-disks 'dependents' field" and commit a10b453a52
"target/mips: Move mips_cpu_add_definition() from helper.c to cpu.c"
resolved. Commit message tweaked.]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Add a QMP command to allow for the behaviors specified by the
-no-reboot and -no-shutdown command line option to be set at runtime.
The new command is named set-action and takes optional arguments, named
after an event, that provide a corresponding action to take.
Example:
-> { "execute": "set-action",
"arguments": {
"reboot": "none",
"shutdown": "poweroff",
"watchdog": "debug" } }
<- { "return": {} }
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Message-Id: <1607705564-26264-4-git-send-email-alejandro.j.jimenez@oracle.com>
[Split the series differently, with -action based on the QMP command. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Generalize the qdev_hotplug variable to the different phases of
machine initialization. We would like to allow different
monitor commands depending on the phase.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
vnc_write() should be locked after the RFB protocol is initialized.
Fixes: 0c426e4534 ("vnc: Add support for color map")
Cc: qemu-stable@nongnu.org
Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Peng Liang <liangpeng10@huawei.com>
Message-id: 20201116141338.148911-1-liangpeng10@huawei.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
There is a new vnc extension for cursors with an alpha channel. Use
it if supported by the vnc client, prefer it over the "rich cursor"
extension which supports only a bitmask for transparency.
This is a visible improvement especially on modern desktops which
actually use the alpha channel when defining cursors.
https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#cursor-with-alpha-pseudo-encoding
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Tested-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20201208115737.18581-7-kraxel@redhat.com
vnc stopped using the copyrect pseudo encoding in 2017, in commit
50628d3479 ("cirrus/vnc: zap bitblit support from console code.")
So we can drop the now unused copyrect feature bit.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20201208115737.18581-5-kraxel@redhat.com
Use an enum for the vnc feature bits. That way they are enumerated
automatically and we don't have to do that manually when adding or
removing features.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20201208115737.18581-4-kraxel@redhat.com
Use active_console in that case like we do in many other places.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20201208115737.18581-3-kraxel@redhat.com
Add missing sanity check.
Reproducer: run qemu with "-device qxl" but without "-spice ..."
Fixes: 0d9b90ce5c ("console: make QMP/HMP screendump run in coroutine")
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20201124122936.30588-1-kraxel@redhat.com
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.
This patch contains all the files, whose maintainer I could not get
from ‘get_maintainer.pl’ script.
Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Message-Id: <20201023124424.20177-1-chetan4windows@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Adapted exec.c and qdev-monitor.c to new location]
Signed-off-by: Thomas Huth <thuth@redhat.com>
In graphic_hw_update(), first select an existing console,
a specific-console or active_console(if not specified),
then updating the console.
Signed-off-by: lichun <lichun@ruijie.com.cn>
Message-id: 1604682219-114389-1-git-send-email-lichun@ruijie.com.cn
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When we connect to vnc by websocket channel, and disconnect
(maybe by some network exception) before handshake,
qemu will left CLOSE_WAIT socket and never close it
After 04d2529da2 ("ui: convert VNC server to use QIOChannelSocket")
and dd154c4d9f ("io: fix handling of EOF / error conditions in websock GSource"),
the vnc call qio_channel_add_watch only care about G_IO_IN,
but mising G_IO_HUP and G_IO_ERR.
When the websocket channel get EOF or error, it cannot callback,
because the caller ignore the event, that leads to resource leak
We need handle G_IO_HUP and G_IO_ERR event, then cleanup the channel
Fixes: 04d2529da2 ("ui: convert VNC server to use QIOChannelSocket")
Fixes: dd154c4d9f ("io: fix handling of EOF / error conditions in websock GSource")
Cc: qemu-stable@nongnu.org
Signed-off-by: Ding Hui <dinghui@sangfor.com.cn>
Message-id: 20201029032241.11040-1-dinghui@sangfor.com.cn
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Thanks to the monitors' coroutine support (merge commit b7092cda1b),
the screendump handler can trigger a graphic_hw_update(), yield and let
the main loop run until update is done. Then the handler is resumed, and
ppm_save() will write the screen image to disk in the coroutine context.
The IO is still blocking though, as the file is set blocking so far,
this could be addressed by some future change (with other caveats).
Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1230527
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20201027133602.3038018-4-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The function is going to be called from a coroutine, and may yield.
Let's ensure our image reference doesn't change over time (due to resize
etc) by keeping a ref.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20201027133602.3038018-3-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Since installation is not part of Makefiles anymore, Make need not
know the directories anymore. Meson already knows them through
built-in options, do everything using them instead of the config_host
dictionary.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Removes opengl dependency from core qemu. The number of shared
libraries for qemu-system-x86_64 goes down from 66 to 60 on my system.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20201019075224.14803-15-kraxel@redhat.com
Build spice core code as module. This removes libspice-server and a
handful of indirect dependencies from core qemu. The number of shared
libraries for qemu-system-x86_64 goes down from 73 to 66 on my system.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20201019075224.14803-13-kraxel@redhat.com
Rename qmp_query_spice() to qmp_query_spice_real(), add to QemuSpiceOps.
Add new qmp_query_spice() function which calls the real function via
QemuSpiceOps if available, otherwise return SpiceInfo.enabled = false.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20201019075224.14803-9-kraxel@redhat.com
