Commit Graph

41 Commits

Author SHA1 Message Date
Demi Marie Obenour 31fb35a7af XFixes: add version check for byteswapped clients
The version check for byteswapped clients was missing.
2021-08-06 11:12:40 -04:00
Adam Jackson b2a0de4f07 xfixes: Allow the client to upgrade the fixes protocol version
If you say FixesQueryVersion twice we remember whatever the second
version number was. With just libXfixes this isn't an issue because the
request is hidden in extension setup, but libxcb-xfixes doesn't do that
for you, which means the second one can _lower_ the requested fixes
version, disabling requests that the client thought it had enabled.

Paper over this by allowing the version number to be raised but not
lowered. Also go ahead and delete the minor version number from the
client state since xfixes doesn't have minor versions (yet, anyway).
2021-07-01 19:18:19 +00:00
Olivier Fourdan e167299f60 xfixes: Add ClientDisconnectMode
With Wayland compositors now being able to start Xwayland on demand, the
next logical step is to be able to stop Xwayland when there is no more
need for it.

The Xserver itself is capable of terminating itself once all X11 clients
are gone, yet in a typical full session, there are a number of X11
clients running continuously (e.g. the Xsettings daemon, IBus, etc.).

Those always-running clients will prevent the Xserver from terminating,
because the actual number of X11 clients will never drop to 0. Worse,
the X11 window manager of a Wayland compositor also counts as an X11
client, hence also preventing Xwayland from stopping.

Some compositors such as mutter use the XRes extension to query the X11
clients connected, match their PID with the actual executable name and
compare those with a list of executables that can be ignored when
deciding to kill the Xserver.

But that's not just clumsy, it is also racy, because a new X11 client
might initiate a connection the X11 server right when the compositor is
about to kill it.

To solve this issue directly at the Xserver level, this add new entries
to the XFixes extension to let the X11 clients themselves specify the
disconnect mode they expect.

Typically, those X11 daemon clients would specify the disconnect mode
XFixesClientDisconnectFlagTerminate to let the Xserver know that they
should not be accounted for when checking the remaining clients prior
to terminate.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2021-06-07 17:28:05 +02:00
Daniel Martin d5379b350f Use ARRAY_SIZE all over the tree
Roundhouse kick replacing the various (sizeof(foo)/sizeof(foo[0])) with
the ARRAY_SIZE macro from dix.h when possible. A semantic patch for
coccinelle has been used first. Additionally, a few macros have been
inlined as they had only one or two users.

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2017-10-30 13:45:20 -04:00
Nathan Kidd 55caa8b08c xfixes: unvalidated lengths (CVE-2017-12183)
v2: Use before swap (Jeremy Huddleston Sequoia)

v3: Fix wrong XFixesCopyRegion checks (Alan Coopersmith)

Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Signed-off-by: Nathan Kidd <nkidd@opentext.com>
Signed-off-by: Julien Cristau <jcristau@debian.org>
2017-10-10 23:33:44 +02:00
Adam Jackson dc7ceda90f dispatch: Mark swapped dispatch as _X_COLD
This touches everything that ends up in the Xorg binary; the big missing
part is GLX since that's all generated code. Cuts about 14k from the
binary on amd64.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-03-01 10:16:20 -05:00
Adam Jackson f523ebb549 dix: Remove pointless client-state callbacks
Private storage is pre-zeroed by the private system itself.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2016-05-11 11:21:08 -04:00
Keith Packard 60014a4a98 Replace 'pointer' type with 'void *'
This lets us stop using the 'pointer' typedef in Xdefs.h as 'pointer'
is used throughout the X server for other things, and having duplicate
names generates compiler warnings.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-01-12 10:24:11 -08:00
Daniel Martin 36740d02b9 xfixes: Fix minor number in QueryVersion
Due to a typo the major version number was passed as minor version to
version_compare().

Regression-from: ffd4874798

Signed-off-by: Daniel Martin <consume.noise@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-10 14:18:22 +10:00
Daniel Stone a1d41e311c Move extension initialisation prototypes into extinit.h
Create extinit.h (and xf86Extensions.h, for Xorg-specific extensions) to
hold all our extension initialisation prototypes, rather than
duplicating them everywhere.

Signed-off-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2012-07-09 23:06:41 -07:00
Alan Coopersmith cc5f09c86f Use C99 designated initializers in various extension Replies
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
2012-07-09 19:58:30 -07:00
Alan Coopersmith 789d64e19a Remove unneccesary casts from WriteToClient calls
Casting return to (void) was used to tell lint that you intended
to ignore the return value, so it didn't warn you about it.

Casting the third argument to (char *) was used as the most generic
pointer type in the days before compilers supported C89 (void *)
(except for a couple places it's used for byte-sized pointer math).

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
2012-07-09 19:12:56 -07:00
Keith Packard 9838b7032e Introduce a consistent coding style
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00
Matt Turner 2c7c520cfe Use internal temp variable for swap macros
Also, fix whitespace, mainly around
	swaps(&rep.sequenceNumber)

Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
2011-09-21 17:12:04 -04:00
Adam Jackson d45f5b2493 fixes: Add support for pointer barriers
Implements pointer barriers as specified by version 5 of the XFIXES
protocol. Barriers are axis-aligned, zero-width lines that block pointer
movement for relative input devices. Barriers may block motion in either
the positive or negative direction, or both.

v3:
- Fix off-by-one in version_requests array
- Port to non-glib test harness
- Fix review notes from Søren Sandmann Pedersen, add tests to match

Co-authored-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-05-31 15:10:51 -04:00
Peter Hutterer ffd4874798 include: add version_compare helper function
Compare two version numbers in the major.minor form.
Switch the few users of manual version switching over to the new function.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
2011-05-13 09:41:50 +10:00
Alan Coopersmith 2db6951763 Sun's copyrights now belong to Oracle
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
2010-12-07 11:10:35 -08:00
David Reveman 6dea617e0f fixes: Add panoramix support
Taken from:
583f4dde81

With minor style fixes and ported to dixLookupResourceByType.

Reviewed-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2010-11-30 13:47:41 -05:00
Keith Packard faeebead7b Change the devPrivates API to require dixRegisterPrivateKey
This patch only changes the API, not the implementation of the
devPrivates infrastructure. This will permit a new devPrivates
implementation to be layed into the server without requiring
simultaneous changes in every devPrivates user.

Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Tiago Vignatti <tiago.vignatti@nokia.com>
2010-06-05 19:23:03 -07:00
Jamey Sharp c38552d115 Add typed resource-lookup errors for non-core resource types.
Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2010-05-19 12:32:48 -07:00
Jamey Sharp 92ed75ac59 Eliminate boilerplate around client->noClientException.
Just let Dispatch() check for a noClientException, rather than making
every single dispatch procedure take care of it.

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
2010-05-13 17:14:07 -07:00
Alan Coopersmith c9726bbe31 Update Sun license notices to current X.Org standard form
Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-12-16 17:11:35 -08:00
Peter Hutterer 55747d256d input: define server-supported protocol versions in one single file.
include/protocol-versions.h specifies each extension version as supported by
the server and sent back on the wire to the client.

This fixes up several issues with the server potentially reporting a higher
version of the protocol if recompiled against a newer version of the
protocol.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Rémi Cardona <remi@gentoo.org>
Acked-by: Julien Cristau <jcristau@debian.org>
2009-09-21 21:47:35 +10:00
Alan Coopersmith 8609a4e883 Correct some Sun license notices to Sun's standard X11 license format
Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
2009-05-15 11:24:15 -07:00
Peter Åstrand ddb8d8945d xserver: Avoid sending uninitialized padding data over the network
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-02-16 13:28:38 +10:00
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00
Paulo Cesar Pereira de Andrade 180bad8477 Add visibility flags to XSERVER_CFLAGS.
This is done to actually change DIX_CFLAGS, as not all "modules" use
XORG_CFLAGS.
  Also export the symbols that are required by other modules after
the change.
2008-12-02 02:50:45 -02:00
Adam Jackson f836e1f11b Unifdef ISC 2008-10-02 17:03:54 -04:00
Tomas Carnecky ebea78cdba Prepare for array-index based devPrivates.
TODO: static indices can be made just an int; some indices
can be combined.
2008-08-28 18:05:40 -04:00
Eamon Walsh e86852aff6 Revert "registry: Register XFixes extension protocol names."
This reverts commit 106758893b.

Moving all the names into dix/registry.c
2007-11-20 18:44:56 -05:00
Eamon Walsh 106758893b registry: Register XFixes extension protocol names. 2007-10-15 18:31:40 -04:00
Eamon Walsh 4017d31902 devPrivates rework: since API is already broken, switch everything
over to new system.

Need to update documentation and address some remaining vestiges of
old system such as CursorRec structure, fb "offman" structure, and
FontRec privates.
2007-08-28 09:28:25 -04:00
Adam Jackson 9a0f25de7c Static cleanups, dead code deletion. 2007-03-25 12:27:01 -04:00
Adam Jackson 7e0aeebb8f Bug #6786: Use separate defines for server's Fixes support level. 2006-11-08 12:03:37 -05:00
Adam Jackson 152090ce44 Coverity #487: Check version number correctly. 2006-03-15 16:33:12 +00:00
Deron Johnson 450018f48b Part 3 of 3 (Other parts are in proto and lib) Composite Version 0.3:
CompositeGetOverlayWindow, CompositeReleaseOverlayWindow Xfixes Version
    4.0: XFixesHideCursor, XFixesShowCursor
2006-03-13 21:59:55 +00:00
Daniel Stone 46b64bd5c6 Fix more include paths; add dix-config.h to XKB code. 2005-07-03 07:37:35 +00:00
Daniel Stone e03198972c Add Xtrans definitions (FONT_t, TRANS_CLIENT) to clean up warnings.
Add XSERV_t, TRANS_SERVER, TRANS_REOPEN to quash warnings.
Add #include <dix-config.h> or <xorg-config.h>, as appropriate, to all
    source files in the xserver/xorg tree, predicated on defines of
    HAVE_{DIX,XORG}_CONFIG_H. Change all Xfont includes to
    <X11/fonts/foo.h>.
2005-07-03 07:02:09 +00:00
Markus Kuhn 44f4713a05 Encoding of numerous files changed to UTF-8 2004-12-04 00:43:13 +00:00
Eric Anholt 8763cca7f9 Update xfixes server code to major version 3 from xserver CVS, and perform
minor diff-reduction versus xserver CVS.
2004-07-31 07:26:50 +00:00
Stuart Kreitman 6ed1c38455 bugzilla 859 -merging DAMAGE-XFIXES into trunk 2004-07-29 14:33:43 +00:00