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AbortClient performs most of the same operations as
CloseDownFileDescriptor except that it doesn't call ospoll_remove,
leaving that unaware that the file descriptor has been closed.
If the file descriptor is re-used before the server comes back around
to clean up, and that new file descriptor is passed to SetNotifyFd,
then that function will mistakenly re-interpret the stale ClientPtr
returned by ospoll_data as a struct notify * instead and mangle data
badly.
To fix this, the patch does:
1) Change CloseDownFileDescriptor so that it can be called multiple
times on the same OsCommPtr. The calls related to the file
descriptor are moved inside the check for trans_conn and
oc->trans_conn is set to NULL after cleaning up.
2) Move the XdmcpCloseDisplay call into CloseDownFileDescriptor. I
don't think the actually matters as we just need to know at some
point that the session client has exited. Moving it avoids the
possibility of having this accidentally trigger from another client
with the same fd which closes down at around the same time.
3) Change AbortClient to call CloseDownFileDescriptor. This makes sure
that all of the fd-related clean up happens in the same way
everywhere, in particular ensures that ospoll is notified about the
closed file descriptor at the time it is closed and not some time later.
Debian-bug: https://bugs.debian.org/862824
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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This infrastructure is no longer read, only written; the mapping
from fd to client is now handled by ospoll.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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Whatever problem this is trying to fix, we don't care. Just include the
thing and stop worrying about whether _POSIX_SOURCE is defined.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
Tested-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
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And the current code for MitToId has a use-after-free() issue.
[Also remove the actual implementations - ajax]
Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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With no code depending on the range of file descriptors, checking
for that can be eliminated.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
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Eliminates all of the fd_set mangling in the server main thread
v2: Listen for POLLOUT while writes are blocked.
v3: Only mark client not ready on EAGAIN return from read
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
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This lets other code share this functionality
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
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The type of fd_mask was changed in Cygwin 2.4.0 headers from 'long' to
'unsigned long'. This exposes an existing problem with winauth.c, which
includes Xwindows.h (which includes windows.h, which defines WIN32),
before including osdep.h, which causes the now conflicting definition of
fd_mask in osdep.h to be exposed:
In file included from ../os/osdep.h:198:18: error: conflicting types for
‘fd_mask’ typedef long int fd_mask; /usr/include/sys/select.h:46:23:
note: previous declaration of ‘fd_mask’ was here typedef unsigned long
fd_mask;
Adjust the include guards in osdep.h to make sure we only use WIN32
guarded code when not compiling for Cygwin (i.e. WIN32 && !__CYGWIN__)
This isn't a very elegant, but unfortunately appears to be the best
solution, since it doesn't seem to be possible to write the test in a
positive form.
Future work: Should also audit of all the other uses of WIN32 in
xserver, and make sure they are correct.
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Jon Turney <jon.turney@dronecode.org.uk>
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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>
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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>
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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>
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sed -i "s/[ ]\+$//g" **/*.(c|h)
happy reviewing...
git diff -w is an empty diff.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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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>
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This reverts commit d5f724544afd2949cebfcf4f0b4510ec0c701bec.
ABI change pended for 1.13
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This reverts commit 49d38b75c8f3276cfce33ffe6b8c4fbeb1081b96.
ABI change pended for 1.13
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This reverts commit 48e7a2ef574c8b38c4f8f07b45f54c8bfd02552b.
ABI change pended for 1.13
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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>
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Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
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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>
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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>
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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>
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If a client sends a big request that's too big (i.e. bigger than
maxBigRequestSize << 2 bytes), the server just disconnects it. This makes the
client receive SIGPIPE the next time it tries to send something.
The X Test Suite sends requests that are too big when the test specifies the
TOO_LONG test type. When the client receives SIGPIPE, XTS marks it as
UNRESOLVED, which counts as a failure.
Instead, remember how long the request is supposed to be and then return that
size. Dispatch() checks the length and sends BadLength to the client. Then,
whenever oci->ignoreBytes is nonzero, ignore the data read instead of trying to
process it as a request.
Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
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Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Tested-by: Gaetan Nadon <memsize@videotron.ca>
Signed-off-by: Keith Packard <keithp@keithp.com>
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Fix warnings due to prototypes not specifying function arguments
Fix warning with RegQueryValueEx()
Tidy up an include
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
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X.Org Bugzilla #16832: http://bugs.freedesktop.org/show_bug.cgi?id=16832
Patch #27279: http://bugs.freedesktop.org/attachment.cgi?id=27279
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Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
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Again, hasn't worked since at least 7.0.
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Remove a whole bunch of code that was never built, be it entire files or
just dead ifdefs.
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Enough with the casting. Doesn't break API or even ABI, but does make
a lot of silly casts superfluos.
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Conflicts:
afb/afbpntwin.c
afb/afbscrinit.c
afb/afbwindow.c
cfb/cfb.h
cfb/cfballpriv.c
cfb/cfbscrinit.c
cfb/cfbwindow.c
configure.ac
fb/wfbrename.h
hw/xfree86/xf4bpp/ppcIO.c
hw/xfree86/xf4bpp/ppcPntWin.c
hw/xfree86/xf4bpp/ppcWindow.c
hw/xfree86/xf8_32bpp/cfbscrinit.c
mfb/mfb.h
mfb/mfbpntwin.c
mfb/mfbscrinit.c
mfb/mfbwindow.c
mi/miexpose.c
Note: conflicts caused by devPrivates rework vs. paintwindow changes.
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MAXBUFSIZE appears to be a leftover of some previous time. Instead, just
use maxBigRequestSize when bigreqs are available (limiting buffers to ~16MB).
When bigreqs are not available, needed won't be larger than the maximum
size of a non-bigreqs request (256kB).
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This has never worked in any modular server release, and as far as I know
was never tested in 6.7 through 6.9.
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Before you complain, this code hasn't seen material change since at least
X11R6. It certainly does not build with any modern version of Kerberos.
Anybody wanting krb5 auth to their X server should probably be using
GSSAPI instead of internal krb5 API anyway.
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actual hardware. Fix kdrive pointer signed/unsigned types. Add
kdrive-required YX rotation functions. Replace rgb text file loading
with static rgb color table.
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for XdmAuthenticationInit() (Peter Breitenlohner)
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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>.
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