Commit Graph

100 Commits

Author SHA1 Message Date
Kristian Høgsberg
215f3d2e0f os: Add AddClientOnOpenFD() to create a new client for an file descriptor
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>
2014-03-25 08:46:12 +10:00
Kristian Høgsberg
62d584d631 os: Always compile ListenOnOpenFD() and export it
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>
2014-03-20 09:23:09 +10:00
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
Keith Packard
abce3206cb os: Clean up warnings
Just const char stuff.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-01-12 10:14:49 -08:00
Keith Packard
b6d7ed4d78 miext: Move SyncShm FDs out of the way of clients
Applications may end up allocating a bunch of shmfence objects, each
of which uses a file descriptor, which must be kept open lest some
other client ask for a copy of it later on.

Lacking an API that can turn a memory mapping back into a file
descriptor, about the best we can do is push the file descriptors out
of the way of other X clients so that we don't run out of the ability
to accept new connections.

This uses fcntl F_GETFD to push the FD up above MAXCLIENTS.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Julien Cristau <jcristau@debian.org>
2013-12-02 12:57:08 -08:00
Keith Packard
fc84166e65 Get rid of the rest of the FD passing code when XTRANS_SEND_FDS isn't set
req_fds and SetReqFds in include/dixstruct.h

ReadFdFromClient, WriteFdToClient and the FD flushing in os/io.c

Signed-off-by: Keith Packard <keithp@keithp.com>
2013-11-11 15:32:07 -08:00
Keith Packard
fdec793cdc Add support for MIT-SHM AttachFd request
This passes a file descriptor from the client to the server, which is
then mmap'd

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2013-10-31 16:58:28 -07:00
Keith Packard
9fd35daa31 Add interfaces to get FDs from clients over the socket
This adds two interfaces:

    void SetReqFds(ClientPtr client, int req_fds)

	Marks the number of file descriptors expected for this
	request. Call this before any request processing so that
	any un-retrieved file descriptors will be closed
	automatically.

    int ReadFdFromClient(ClientPtr client)

	Reads the next queued file descriptor from the connection. If
	this request is not expecting any more file descriptors, or
	if there are no more file descriptors available from the
	connection, then this will return -1.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2013-10-31 16:58:25 -07:00
Keith Packard
2d96948ab5 os: Add GetTimeInMicros
64-bit higher resolution current time value.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2013-10-31 16:58:21 -07:00
Jon TURNEY
e893d570aa Use X_ATTRIBUTE_PRINTF where suggested for os.h
InitOutput.c: In function ‘OsVendorInit’:
InitOutput.c:630:29: warning: assignment left-hand side might be a candidate for a format attribute [-Wmissing-format-attribute]
winprocarg.c: In function ‘ddxProcessArgument’:
winprocarg.c:231:29: warning: assignment left-hand side might be a candidate for a format attribute [-Wmissing-format-attribute]

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Colin Harrison <colin.harrison@virgin.net>
2012-10-16 22:29:54 +01:00
Adam Jackson
ff8e3ad807 dix: Pull client-is-local flag up to the ClientRec
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2012-09-20 14:36:39 -04:00
Keith Packard
75966a4186 xwin: Clean up os wrappers for System, Popen and Pclose on Windows
Popen and Pclose are never used on Windows, so don't bother to even
try to define them.

System(s) was defined as system(s), but the two users of that
function are in xkb, which carefully redefines that as
Win32System. Move Win32System and Win32TempDir to os/utils.c, renaming
Win32System to be just System, which simplifies the xkb code

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2012-07-17 16:08:04 +01:00
Keith Packard
023127915e Reliably reset signals at server init time
Each DDX currently calls OsReleaseSIGIO in case it was suspended when
the server regen started. This causes a BUG to occur if SIGIO was
*not* blocked at that time. Instead of relying on each DDX, make the
OS layer reliably reset all signal state at server init time, ensuring
that signals are suitably unblocked and that the various signal state
counting variables are set back to zero.

Signed-off-by: Keith Packard <keithp@keithp.com>
2012-07-09 16:34:39 -07:00
Peter Hutterer
d84f0f823e Merge branch 'sigio-vt-switch-issues' into for-keith
Conflicts:
	test/Makefile.am

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-07-04 21:23:48 +10:00
Peter Hutterer
6bf356ef28 os: add OsBlockSIGIO and OsReleaseSIGIO
Let the dix be in charge of changing the sigprocmask so we only have one
entity that changes it.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
2012-07-03 15:56:33 +10:00
Chase Douglas
ac20815d52 Add ErrorFSigSafe() alternative to ErrorF()
ErrorF() is not signal safe. Use ErrorSigSafe() whenever an error
message may be logged in signal context.

[whot: edited to "ErrorFSigSafe"]

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-07-02 22:34:32 -07:00
Chase Douglas
164b38c72f Add LogMessageVerbSigSafe() for logging messages while in signal context
[whot: edited to use varargs, squashed commit below]

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

os: fix vararg length calculation

Make %u and %x sizeof(unsigned int), %p sizeof(void*). This is printf
behaviour and we can't guarantee that void* is uint64_t anyway.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
2012-07-02 22:34:32 -07:00
Jeremy Huddleston
d97868d934 os: Annotate OsVendorFatalError as _X_ATTRIBUTE_PRINTF
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Tested-By: Michal Suchanek <hramrach@gmail.com>
2012-04-23 20:20:38 -07:00
Jeremy Huddleston
a818b30598 os: Pass the FatalError message to OsVendorFatalError
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2012-03-24 01:07:05 -07:00
Peter Hutterer
14e3ea730e include: add an X_DEBUG message type
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
2012-03-22 11:33:21 +10:00
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
Keith Packard
d9eeede52f Revert "dix: Pull client-is-local flag up to the ClientRec"
This reverts commit 49d38b75c8.

ABI change pended for 1.13
2012-01-12 12:09:59 -08:00
Adam Jackson
49d38b75c8 dix: Pull client-is-local flag up to the ClientRec
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2012-01-06 13:29:53 -05:00
Alan Coopersmith
50b1097643 Constify the reason string throughout the authorization check framework
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>
2011-12-12 17:03:10 -08:00
Alan Coopersmith
9999819601 Constify string for authorization protocol names
gcc was warning from storing string constants in a char *name field:
auth.c:64:1: warning: initialization discards qualifiers from pointer target type
auth.c:72:1: warning: initialization discards qualifiers from pointer target type
auth.c:81:1: warning: initialization discards qualifiers from pointer target type

Making the field const requires changing AuthorizationFromID to take
a const char ** pointer for the name argument which it sets to point
to the matching name entry.

Changing that argument requires changing its sole caller in the security
extension to pass the address of a const char * variable to it, which it
can do, since the only thing it does with the returned name is to pass
it back to the RemoveAuthorization function that already expects a const
char *name.

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>
2011-12-12 17:03:10 -08:00
Alan Coopersmith
d829a7c5cb Move to autoconf standard function name checks & defines
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>
2011-12-05 14:32:45 -08:00
Alan Coopersmith
cccafabd56 Mark arguments to fopen/popen/system wrappers as const char *
Silencing more gcc -Wwrite-strings warnings

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-11-23 12:15:06 -08:00
Alan Coopersmith
acde97a39d Add fallback implementation of strndup()
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Linux test code fixed by: Keith Packard <keithp@keithp.com>
2011-11-23 12:15:05 -08:00
Rami Ylimäki
c1bb8f43b9 record: Prevent out of bounds access when recording a reply.
Any pad bytes in replies are written to the client from a zeroed
array. However, record extension tries to incorrectly access the pad
bytes from the end of reply data.

Signed-off-by: Rami Ylimäki <rami.ylimaki@vincit.fi>
Reviewed-by: Erkki Seppälä <erkki.seppala@vincit.fi>
2011-11-18 11:26:02 -08:00
Jeremy Huddleston
09dbfcb0ad os: Remove Error()
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-10-11 21:23:46 -07:00
Daniel Kurtz
b31d104fc0 os/log: Add LogVHdrMessageVerb and friends
LogVHdrMessageVerb allows a custom header to be inserted in a log message,
between the Log system's MessageType string, and a formatted variable
message body. The custom header can itself be a formatted variable string.

These functions can be used, for example, by driver abstraction layers to
format specific driver messages in a standard format, but do it in a way
that is efficient, obeys the log-layers verbosity settings, and is safe
to use in signal handlers (because they don't call malloc), even for
types besides X_NONE.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-08-22 15:49:18 +10:00
Peter Hutterer
f51e42f583 Terminate the log with one last message.
Instead of just closing the log when everything is done, put one more
message in stating that we're actually terminating. Users or scripts that
look at the Xorg.log will then know that a) the server has terminated
properly and b) why the server terminated (to some degree, given that most
real-world errors will be caused by AbortServer()).

Acked-by: Gaetan Nadon <memsize@videotron.ca>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Tested-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Tested-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Reviewed-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-07-27 09:31:02 +10:00
Jeremy Huddleston
aad7b324ae os: Add missing _X_ATTRIBUTE_PRINTF to va_list variants
Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-04-25 10:45:34 -07:00
Keith Packard
519d243f0c Merge remote branch 'alanc/master' 2010-12-07 13:39:58 -08:00
Alan Coopersmith
c95c1d338f Add asprintf() implementation for platforms without it
Provides a portable implementation of this common allocating sprintf()
API found in many, but not yet all, of the platforms we support.
If the platform provides vasprintf() we simply wrap it, otherwise we
implement it - either way callers can use it regardless of platform.

Since not all platforms guarantee to NULL out the return pointer on
failure, we don't either, and require callers to check the return
value for -1.

The old Xprintf() API is deprecated, but left for compatibility for now.

The new API is added in a new header so that it can be used in parts of
the server such as hw/xfree86/parser that don't include all the server
headers.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
2010-12-07 11:10:35 -08:00
Cyril Brulebois
d1b45b0fd5 Fix missing <string.h> include.
The following happens otherwise (with -Wall -Werror):
| In file included from /usr/include/X11/Xfuncs.h:47,
|                  from ../../include/misc.h:112,
|                  from ../../include/screenint.h:52,
|                  from ../../include/scrnintstr.h:52,
|                  from ../../dix/cursor.c:58:
| /usr/include/string.h:534: error: conflicting types for ‘xstrcasecmp’
| ../../include/os.h:488: note: previous declaration of ‘xstrcasecmp’ was here
| /usr/include/string.h:538: error: conflicting types for ‘xstrncasecmp’
| ../../include/os.h:493: note: previous declaration of ‘xstrncasecmp’ was here

Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Cyril Brulebois <kibi@debian.org>
2010-12-07 18:42:43 +01:00
Alan Coopersmith
8f42b2b693 Simplify Error() - don't allocate temporary copy of error string
Doesn't seem to be any reason to just not pass the error string
as another argument directly to LogVWrite()

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Julien Cristau <jcristau@debian.org>
2010-11-30 16:25:22 -08:00
Alan Coopersmith
f4ba75a494 Remove unused ReqLen & CastxReq macros
According to Xserver-spec, they were part of the now-deleted DBE "Idioms"
code.   The last callers of them were removed in commits fe616f9230 &
3d64290547.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-11-30 13:16:35 -08:00
Jeremy Huddleston
bca85e2e12 Use _X_ATTRIBUTE_PRINTF _X_DEPRECATED _X_NORETURN
Use the values from xproto rather than duplicating the effort

Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-05-13 10:03:23 -07:00
Mikhail Gusarov
8b5326aa98 Mark OsAbort as noreturn function to make gcc happier.
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2010-05-13 04:54:44 +07:00
Mikhail Gusarov
868e372a73 Introduce X_NORETURN macro defined as __attribute__((noreturn)) for gcc
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2010-05-13 04:54:34 +07:00
Mikhail Gusarov
96c7ab27c3 Deprecate allocation functions which are plain wrappers for C stdlib
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2010-05-13 00:20:32 +07:00
Mikhail Gusarov
a5dba0f5ca Document allocation functions, noting deviations from C library
Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2010-05-13 00:20:32 +07:00
Mikhail Gusarov
e983848ab4 Clean {X,XNF}{alloc,calloc,realloc,free,strdup} from pre-C89 baggage
C89 guarantees alignment of pointers returned from malloc/calloc/realloc, so
stop fiddling with alignment manually and just pass the arguments to library
functions.

Also convert silent error when negative size is passed into function into
warning in log file.

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2010-05-13 00:20:32 +07:00
Alan Coopersmith
2eab697adb Constify function prototypes in auth & xdmcp code
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Tested-by: Gaetan Nadon <memsize@videotron.ca>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-05-07 12:22:58 -07:00
Rami Ylimaki
ca364ca82a os: Introduce OsAbort for proper core dumps.
Signed-off-by: Rami Ylimaki <ext-rami.ylimaki@nokia.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-02-17 23:20:41 -08:00
Yaakov Selkowitz
9bc4e88d84 Define ddxBeforeReset stubs in platform-neutral DDXs
XWin uses ddxBeforeReset, which is called in DIX.  Other DDXs need to
define these in order to avoid an undefined symbol error at link time
when building alongside XWin.  Xnest and Xvfb already provide empty stubs;
this does the same for Xdmx and the platform-neutral KDrive servers.

Also add a prototype to avoid a warning in all DDXs.

Signed-off-by: Yaakov Selkowitz <yselkowitz@users.sourceforge.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2009-10-15 08:06:53 -07:00
Alan Coopersmith
a0b6a363dc Lift fatal signal handlers from DDX'es up to a common DIX implementation
Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>
2009-04-09 17:10:12 -07:00
Adam Jackson
843166b033 os: signal handlers return void. 2009-04-06 11:05:17 -04:00
Tomas Carnecky
4e0d7cc506 FID, whatever that was, isn't anymore
No traces of FID in the xserver nor in the modules listed in
util/modular/xorg.modules

Signed-off-by: Tomas Carnecky <tom@dbservice.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2009-03-23 16:06:32 +10:00