Removed from xtrans in 2012, and never wired up in the modular build
anyway.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
When -displayfd is looping through the possible display ids to use,
if it can't open all the listening sockets for one (say when :0 is
already in use), it calls CloseWellKnownConnections to close all
the ListenTransConns entries before the point that ListenTransFds
was allocated & initialized, so CloseWellKnownConnections would
segfault trying to read entries from a NULL ListenTransFds pointer.
Introduced by commit 7b02f0b8
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=93212
Previously all X servers started with -displayfd would overwrite
Xorg.0.log - now a temporary name of Xorg.pid-<pid>.log is used
until after -displayfd finds an open display - then it is renamed
to the traditional Xorg.<display>.log name.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Replace the custom path for dealing with new incoming connections with
the general-purpose NotifyFd API.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This adds the ability to be notified when a file descriptor is
available for writing.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This provides a callback-based interface to monitor file
descriptors beyond the usual client and device interfaces.
Modules within the server using file descriptors for reading and/or
writing can call
Bool SetNotifyFd(int fd, NotifyFdProcPtr notify_fd, int mask, void *data);
mask can be any combination of X_NOTIFY_READ and X_NOTIFY_WRITE.
When 'fd' becomes readable or writable, the notify_fd function will be
called with the 'fd', the ready conditions and 'data' values as arguments,
When the module no longer needs to monitor the fd, it will call
void RemoveNotifyFd(int fd);
RemoveNotifyFd may be called from the notify function.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Make the maximum number of clients user configurable, either from the command
line or from xorg.conf
This patch works by using the MAXCLIENTS (raised to 512) as the maximum
allowed number of clients, but allowing the actual limit to be set by the
user to a lower value (keeping the default of 256).
There is a limit size of 29 bits to be used to store both the client ID and
the X resources ID, so by reducing the number of clients allowed to connect to
the X server, the user can increase the number of X resources per client or
vice-versa.
Parts of this patch are based on a similar patch from Adam Jackson
<ajax@redhat.com>
This now requires at least xproto 7.0.28
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
Since _XSERVTransClose frees the connection pointer passed to it,
remove that pointer from the array, so we don't try to double free it
if we come back into CloseWellKnownConnections again.
Should fix https://bugzilla.yoctoproject.org/show_bug.cgi?id=6665 in which
the shutdown section of the main() loop called CloseWellKnownConnections()
and then moved on to ddxGiveUp(), which failed to release the VT and thus
called AbortServer(), which called CloseWellKnownConnections() again.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Use typedefs to work around dtrace dropping const qualifiers from probe
arguments when generating Xserver-dtrace.h. Add new probes.h header to
avoid having to replicate these typedefs in every file with dtrace probes.
Gets rid of these warnings from gcc 4.8:
getevents.c:1096:9:
warning: passing argument 6 of '__dtrace_Xserver___input__event' discards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1096:9:
warning: passing argument 7 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1651:9:
warning: passing argument 6 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1651:9:
warning: passing argument 7 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1791:9:
warning: passing argument 6 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1791:9:
warning: passing argument 7 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1921:9:
warning: passing argument 6 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
getevents.c:1921:9:
warning: passing argument 7 of '__dtrace_Xserver___input__event' disards
'const' qualifier from pointer target type [enabled by default]
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
-displayfd should check ports up to 65535
Noticed during https://cygwin.com/ml/cygwin-xfree/2014-07/msg00024.html
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
pharris says that the resets should not be done in the hotplugging case.
This may fix a crash reported against XQuartz:
http://xquartz.macosforge.org/trac/ticket/869
Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
Reviewed-by: Peter Harris <pharris@opentext.com>
When the server is started with the -displayfd option, check to make
sure that the writes succeed and give up running if they don't.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Failing to clear this means that we'll attempt to write the display
number to a random file descriptor on subsequent X server generations.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Handle -displayfd and an explicit display number sensibly, e.g. use the
explicitly specified display number, and write it to the displayfd
v2: displayfd might be 0, so use -1 as invalid value
v3: Rebase for addition of NoListenAll flag
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
When the Xwayland server is socket-activated, we need to connect and
initialize the window manager before the activating client gets to
proceed with connecting. We do this by passing a socket file
descriptor for the window manager connection to the Xwayland server,
which then uses this new function to set it up as an X client.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
A socket-activated server will receive its listening sockets from the
parent process and should not create its own sockets. This patch
introduces a NoListen flag that can be set by a DDX to prevent
the server from creating the sockets. When NoListen is enabled, we
also disable the server lock checking, since the parent process is
responsible for checking the lock before picking the display name and
creating the sockets.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
This function was written to allow the X server to inherit the listen
socket from launchd on OS X. The code is not specific to OS X though
and will be useful for on-demand launched Xwayland servers.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
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>
Forwarding proxies like sshd will appear to be local, even though they
aren't really. This leads to weird behaviour for extensions that truly
require running under the same OS services as the client, like MIT-SHM
and DRI2.
Add two new legal values for the initial connection's byteOrder field,
'r' and 'R'. These act like 'l' and 'B' respectively, but have the side
effect of forcing the client to be treated as non-local. Forwarding
proxies should attempt to munge the first packet of the connection
accordingly; older servers will reject connections thusly munged, so the
proxy should fall back to passthrough if the munged connection attempt
fails.
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Daniel Stone <daniel@fooishbar.org>
Much easier for scripts that try to read the display value off the file
descriptor. Plus, this restores the behaviour we had for this patch in
Fedora since server 1.6 (April 2009).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
This option specifies a file descriptor in the launching process. X
will scan for an available display number and write that number back to
the launching process, at the same time as SIGUSR1 generation. This
means display managers don't need to guess at available display numbers.
As a consequence, if X fails to start when using -displayfd, it's not
because the display was in use, so there's no point in retrying the X
launch on a higher display number.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Tested-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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>
Move some constants near their only users, and remove some
getdtablesize() logic that's second-guessing configure.
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Forwarding proxies like sshd will appear to be local, even though they
aren't really. This leads to weird behaviour for extensions that truly
require running under the same OS services as the client, like MIT-SHM
and DRI2.
Add two new legal values for the initial connection's byteOrder field,
'r' and 'R'. These act like 'l' and 'B' respectively, but have the side
effect of forcing the client to be treated as non-local. Forwarding
proxies should attempt to munge the first packet of the connection
accordingly; older servers will reject connections thusly munged, so the
proxy should fall back to passthrough if the munged connection attempt
fails.
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Almost all of the places the string is assigned point to a literal
string constant, so use const char * for those, and const char **
for function calls that return it via an argument. Fortunately
the top level function, ClientAuthorized, which returns the string
as its return value is called from only one place, ProcEstablishConnection.
ProcEstablishConnection stores either that return value or a string literal
in char *reason. It only uses reason as an argument to SendConnSetup.
SendConnSetup passes the reason argument to strlen & WriteToClient,
both of which already have const qualifiers on their args.
Thus added const to the reason variable in ProcEstablishConnection
and the reason argument to SendConnSetup.
Fixes gcc warnings:
dispatch.c: In function 'ProcEstablishConnection':
dispatch.c:3711:9: warning: assignment discards qualifiers from pointer target type
auth.c: In function 'CheckAuthorization':
auth.c:218:14: warning: assignment discards qualifiers from pointer target type
auth.c:220:20: warning: assignment discards qualifiers from pointer target type
connection.c: In function 'ClientAuthorized':
connection.c:683:3: warning: return discards qualifiers from pointer target type
mitauth.c: In function 'MitCheckCookie':
mitauth.c:88:13: warning: assignment discards qualifiers from pointer target type
xdmauth.c:259:14: warning: assignment discards qualifiers from pointer target type
xdmauth.c:270:14: warning: assignment discards qualifiers from pointer target type
xdmauth.c:277:11: warning: assignment discards qualifiers from pointer target type
xdmauth.c:293:15: warning: assignment discards qualifiers from pointer target type
xdmauth.c:313:14: warning: assignment discards qualifiers from pointer target type
xdmauth.c:322:11: warning: assignment discards qualifiers from pointer target type
rpcauth.c: In function 'SecureRPCCheck':
rpcauth.c:136:10: warning: assignment discards qualifiers from pointer target type
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Replace multiple methods of checking for functions with AC_CHECK_FUNCS
Replace multiple methods of selecting fallback funcs with AC_REPLACE_FUNCS
Replace HAS_* and NEED_* #defines with autogenerated HAVE_*
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Gaetan Nadon <memsize@videotron.ca>
This batch is the straightforward set - others are more complex and
need more analysis to determine right size to pass.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
The extra "out" pointer to redirect writes to the array isn't needed since
the removal of LBX (commit a9ed5a8790), and eliminating it allows more
logical use of sizeof(addr) in length-checked strlcpy & snprintf calls to
write to it.
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Also, fix whitespace, mainly around
swaps(&rep.sequenceNumber)
Reviewed-by: Peter Harris <pharris@opentext.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
In the case of failure on AllocNewConnection, new_trans_conn cannot be
dereferenced because it's already freed. Swapping the order of this logic fix
the changes introduced in 04956b8043.
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
CC: Jeremy Huddleston <jeremyhu@freedesktop.org>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
LocalClient is used for all DRI2 requests that makes it frequently
called function. Querying if connection is local or not takes 10-15us
(on ARM) depending on malloc speed.
Signed-off-by: Pauli Nieminen <ext-pauli.nieminen@nokia.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Or at least, not supported since xserver 1.0.
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Signed-off-by: Adam Jackson <ajax@redhat.com>
This is very similar to the RunFromSmartParent (implicit) option, except
we do not send the signal to our parent process, but our own process
instead, and that signal is SIGSTOP, not SIGUSR1.
Upstart or a similar equivalent program will detect this, realize that
we are ready to accept clients now, send us SIGCONT and move our job
status from SPAWNED to RUNNING.
Signed-off-by: Oliver McFadden <oliver.mcfadden@nokia.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
We were missing the callback in a couple of places. Drivers may use
the flush callback to submit batched up rendering before events (for
example, damage events) are sent out, to ensure that the rendering
has been queued when the client receives the event.
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
When ResetCurrentRequest is called, or IgnoreClient is called when a
client has input pending, IgnoredClientsWithInput will be set. However,
a subsequent IgnoreClient request will clear the client fd from that fd
set, potentially causing the client to hang.
So add an Ignore/Attend count, and only apply the ignore logic on the
first ignore and the attend logic on the last attend. This is
consistent with the comments for these functions; callers must pair
them.
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=27035.
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
This patch was generated by the following Perl code:
perl -i -pe 's/([^_])return\s*\(\s*([^(]+?)\s*\)s*;(\s+(\n))?/$1return $2;$4/g;'
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Marcin Baczyński <marbacz@gmail.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The only remaining X-functions used in server are XNF*, the rest is converted to
plain alloc/calloc/realloc/free/strdup.
X* functions are still exported from server and x* macros are still defined in
header file, so both ABI and API are not affected by this change.
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>