summaryrefslogtreecommitdiff
path: root/src
AgeCommit message (Collapse)Author
2013-06-28Remove check that can never be true.Thomas Klausner
clang warns: warning: comparison of constant 268435455 with expression of type 'CARD16' (aka 'unsigned short') is always false Signed-off-by: Thomas Klausner <wiz@NetBSD.org> Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-06-27Include limits.h to prevent build error: missing INT_MAXPeter Hutterer
Introduced in 4c8e9bcab459ea5f870d3e56eff15f931807f9b7. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-06-27If the XGetDeviceDontPropagateList reply has an invalid length, return 0Peter Hutterer
If we skip over the reply data, return 0 as number of event classes. Follow-up to 6dd6dc51a2935c72774be81e5cc2ba2c30e9feff. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-06-27Change size += to size = in XGetDeviceControlPeter Hutterer
size += blah is technically correct but it implies that we're looping or otherwise incrementing the size. Which we don't, it's only ever set once. Change this to avoid reviewer confusion. Reported-by: Dave "color-me-confused" Airlie <airlied@redhat.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-06-27Fix potential corruption in mask_len handlingPeter Hutterer
First: check for allocation failure on the mask. XI2 requires that the mask is zeroed, so we can't just Data() the mask provided by the client (it will pad) - we need a tmp buffer. Make sure that doesn't fail. Second: req->mask_len is a uint16_t, so check against malicious mask_lens that would cause us to corrupt memory on copy, as the code always allocates req->mask_len * 4, but copies mask->mask_len bytes. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-24Don't overwrite the cookies serial numberPeter Hutterer
serial != sequenceNumber, see _XSetLastRequestRead() cookie->serial is already set at this point, setting it again directly from the sequenceNumber of the event causes a bunch of weird issues such as scrollbars and text drag-n-drop breaking. https://bugzilla.redhat.com/show_bug.cgi?id=965347 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23sign extension issue in XListInputDevices() [CVE-2013-1995]Alan Coopersmith
nptr is (signed) char, which can be negative, and will sign extend when added to the int size, which means size can be subtracted from, leading to allocating too small a buffer to hold the data being copied from the X server's reply. v2: check that string size fits inside the data read from the server, so that we don't read out of bounds either Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23Avoid integer overflow in XListInputDevices() [CVE-2013-1984 8/8]Alan Coopersmith
If the length of the reply as reported by the Xserver is too long, it could overflow the calculation for the size of the buffer to copy the reply into, causing memory corruption. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23Avoid integer overflow in XGetDeviceProperties() [CVE-2013-1984 7/8]Alan Coopersmith
If the number of items as reported by the Xserver is too large, it could overflow the calculation for the size of the buffer to copy the reply into, causing memory corruption. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23integer overflow in XIGetSelectedEvents() [CVE-2013-1984 6/8]Alan Coopersmith
If the number of events or masks reported by the server is large enough that it overflows when multiplied by the size of the appropriate struct, or the sizes overflow as they are totaled up, then memory corruption can occur when more bytes are copied from the X server reply than the size of the buffer we allocated to hold them. v2: check that reply size fits inside the data read from the server, so that we don't read out of bounds either Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23integer overflow in XIGetProperty() [CVE-2013-1984 5/8]Alan Coopersmith
If the number of items reported by the server is large enough that it overflows when multiplied by the size of the appropriate item type, then memory corruption can occur when more bytes are copied from the X server reply than the size of the buffer we allocated to hold them. Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23integer overflow in XGetDeviceMotionEvents() [CVE-2013-1984 4/8]Alan Coopersmith
If the number of events or axes reported by the server is large enough that it overflows when multiplied by the size of the appropriate struct, then memory corruption can occur when more bytes are copied from the X server reply than the size of the buffer we allocated to hold them. Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23integer overflow in XGetDeviceDontPropagateList() [CVE-2013-1984 3/8]Alan Coopersmith
If the number of event classes reported by the server is large enough that it overflows when multiplied by the size of the appropriate struct, then memory corruption can occur when more bytes are copied from the X server reply than the size of the buffer we allocated to hold them. V2: EatData if count is 0 but length is > 0 to avoid XIOErrors Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23integer overflow in XGetFeedbackControl() [CVE-2013-1984 2/8]Alan Coopersmith
If the number of feedbacks reported by the server is large enough that it overflows when multiplied by the size of the appropriate struct, or if the total size of all the feedback structures overflows when added together, then memory corruption can occur when more bytes are copied from the X server reply than the size of the buffer we allocated to hold them. v2: check that reply size fits inside the data read from the server, so we don't read out of bounds either Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23integer overflow in XGetDeviceControl() [CVE-2013-1984 1/8]Alan Coopersmith
If the number of valuators reported by the server is large enough that it overflows when multiplied by the size of the appropriate struct, then memory corruption can occur when more bytes are copied from the X server reply than the size of the buffer we allocated to hold them. v2: check that reply size fits inside the data read from the server, so we don't read out of bounds either Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23unvalidated lengths in XQueryDeviceState() [CVE-2013-1998 3/3]Alan Coopersmith
If the lengths given for each class state in the reply add up to more than the rep.length, we could read past the end of the buffer allocated to hold the data read from the server. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23memory corruption in _XIPassiveGrabDevice() [CVE-2013-1998 2/3]Alan Coopersmith
If the server returned more modifiers than the caller asked for, we'd just keep copying past the end of the array provided by the caller, writing over who-knows-what happened to be there. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23Stack buffer overflow in XGetDeviceButtonMapping() [CVE-2013-1998 1/3]Alan Coopersmith
We copy the entire reply sent by the server into the fixed size mapping[] array on the stack, even if the server says it's a larger size than the mapping array can hold. HULK SMASH STACK! Reported-by: Ilja Van Sprundel <ivansprundel@ioactive.com> Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-23Use _XEatDataWords to avoid overflow of rep.length bit shiftingAlan Coopersmith
rep.length is a CARD32, so rep.length << 2 could overflow in 32-bit builds Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-05-20Copy the sequence number into the target event too (#64687)Peter Hutterer
X.Org Bug 64687 <http://bugs.freedesktop.org/show_bug.cgi?id=64687> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jasper St. Pierre <jstpierre@mecheye.net>
2013-04-30Expand comment on the memory vs. reply ordering in XIGetSelectedEvents()Alan Coopersmith
Unpacking from the wire involves un-interleaving the structs & masks, which wasn't obvious to me the first time I read it, so make notes before I forget again. Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-04-05Require XFixes for PointerBarrier, remove duplicate typedefPeter Hutterer
The PointerBarrier typedef is duplicate if a client includes both Xfixes.h and XInput2.h. gcc 4.6 won't complain about that, but earlier versions do: http://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ce3765bf44e49ef0568a1ad4a0b7f807591d6412 gcc 4.6 with -pedantic-errors shows: /opt/xorg/include/X11/extensions/XInput2.h:172:13: error: redefinition of typedef ‘PointerBarrier’ [-pedantic] In file included from test.c:1:0: /opt/xorg/include/X11/extensions/Xfixes.h:255:13: note: previous declaration of ‘PointerBarrier’ was here Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Julien Cristau <jcristau@debian.org>
2013-01-15Add missing XI_RawTouch* in XInputCopyCookieBenjamin Tissoires
Looks like XI_RawTouch* events are missing in the big switch in this function. When running XIT tests for multitouch devices, several following errors appears: XInputCopyCookie: Failed to copy evtype 22 XInputCopyCookie: Failed to copy evtype 23 XInputCopyCookie: Failed to copy evtype 24 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-09Add support for pointer barrier eventsJasper St. Pierre
Signed-off-by: Jasper St. Pierre <jstpierre@mecheye.net> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-12-10Fix const compiler warningsPeter Hutterer
XExtInt.c:80:38: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] XExtInt.c:150:5: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] XExtInt.c:151:5: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] XExtInt.c:152:5: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] XExtInt.c:153:5: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] XExtInt.c:154:5: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
2012-12-10Fix compiler warningsPeter Hutterer
XIQueryVersion.c: In function '_xiQueryVersion': XIQueryVersion.c:63:26: warning: declaration of 'info' shadows a parameter [-Wshadow] XIQueryVersion.c:53:73: warning: shadowed declaration is here [-Wshadow] XExtInt.c: In function 'XInputWireToEvent': XExtInt.c:823:25: warning: declaration of 'i' shadows a previous local [-Wshadow] XExtInt.c:502:18: warning: shadowed declaration is here [-Wshadow] XExtInt.c:850:25: warning: declaration of 'i' shadows a previous local [-Wshadow] XExtInt.c:502:18: warning: shadowed declaration is here [-Wshadow] In file included from XExtInt.c:64:0: ../include/X11/extensions/XInput.h:166:17: note: previous declaration of '_xidevicebusy' was here XExtInt.c:101:12: warning: redundant redeclaration of '_XiGetDevicePresenceNotifyEvent' [-Wredundant-decls] XExtInt.c:76:13: warning: redundant redeclaration of '_xibaddevice' [-Wredundant-decls] In file included from XExtInt.c:64:0: ../include/X11/extensions/XInput.h:162:17: note: previous declaration of '_xibaddevice' was here XExtInt.c:81:13: warning: redundant redeclaration of '_xibadclass' [-Wredundant-decls] In file included from XExtInt.c:64:0: ../include/X11/extensions/XInput.h:163:17: note: previous declaration of '_xibadclass' was here XExtInt.c:86:13: warning: redundant redeclaration of '_xibadevent' [-Wredundant-decls] In file included from XExtInt.c:64:0: ../include/X11/extensions/XInput.h:164:17: note: previous declaration of '_xibadevent' was here XExtInt.c:91:13: warning: redundant redeclaration of '_xibadmode' [-Wredundant-decls] In file included from XExtInt.c:64:0: ../include/X11/extensions/XInput.h:165:17: note: previous declaration of '_xibadmode' was here XExtInt.c:96:13: warning: redundant redeclaration of '_xidevicebusy' [-Wredundant-decls] In file included from XExtInt.c:64:0: ../include/X11/extensions/XInput.h:166:17: note: previous declaration of '_xidevicebusy' was here XListDev.c: In function 'ParseClassInfo': XListDev.c:116:33: warning: declaration of 'k' shadows a previous local [-Wshadow] XListDev.c:109:12: warning: shadowed declaration is here [-Wshadow] XGetFCtl.c: In function 'XGetFeedbackControl': XGetFCtl.c:184:26: warning: declaration of 'i' shadows a previous local [-Wshadow] XGetFCtl.c:72:17: warning: shadowed declaration is here [-Wshadow] Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
2012-04-23Destroy extension record after last display is removedChase Douglas
The extension record is currently leaked and never freed. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-03-26Set the RawEvent sourceid (#34240)Peter Hutterer
XI 2.2 and later include the sourceid in raw events. X.Org Bug 34240 <http://bugs.freedesktop.org/show_bug.cgi?id=34240> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
2012-03-26Move version comparison into a helper function.Peter Hutterer
No functional changes, this simply introduces a version helper function that returns -1, 0 or 1 depending on the version comparison result. To be used internally only. Needed for fix to #34240 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
2012-03-15Fix wrong button label and mask copy on OS XPeter Hutterer
Regression introduced in c1a5a70b51f12dedf354102217c7cd4247ed3a4b. If double-padding is applied, the length of the mask on the wire may be smaller than libXi's mask_len. When copying, only the wire length must be copied, with the remainder set to 0. When advancing to the button labels, the wire length matters, not libXi's internal length. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com> Tested-by: Jeremy Huddleston <jeremyhu@apple.com>
2012-03-08Fix XIScrollClass increment value on 32-bit machinesChase Douglas
This fixes scroll class increment values on 32-bit machines. Performing 1UL << 32 shifts the bit off the end of a 32-bit unsigned long value. By expanding to 1ULL, we have the full 64-bits of an unsigned long long including on 32-bit machines. Before this change, xinput list --long would output scroll increment values of -nan. Signed-off-by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-02-23Fix bus error on MIPS N32 for bug #38331.Michał Masłowski
XIValuatorClassInfo and XIScrollClassInfo might have an address of 4 bytes modulo 8, while they contain doubles which need 8 byte alignment. This is fixed by adding extra padding after each structure or array in sizeDeviceClassType and adding helper functions to determine sizes and padding only in one place. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=38331 Signed-off-by: Michał Masłowski <mtjm@mtjm.eu> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2012-02-09Handle new XIAllowEvent request sizePeter Hutterer
inputproto 2.1.99.6 restored the previous request for ABI compatibility reasons, and it introduced a new XI 2.2 specific define. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Keith Packard <keithp@keithp.com>
2012-01-18Force class alignment to a multiple of sizeof(XID).Peter Hutterer
Calculate length field to a multiples of sizeof(XID). XIDs are typedefs to ulong and thus may be 8 bytes on some platforms. This can trigger a SIGBUS if a class ends up not being 8-aligned (e.g. after XAxisInfo). Reported-by: Nicolai Stange <nicolai.stange@zmaw.de> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Matthieu Herrb <matthieu.herrb@laas.fr>
2011-12-21Implement support for XI 2.2Peter Hutterer
Adds support for the new TouchClass for multitouch-capable servers/devices. New events: XITouchOwnershipEvent New event types handled: XITouchBegin, XITouchUpdate, XITouchEnd XIRawTouchBegin, XIRawTouchUpdate, XIRawTouchEnd New functions: XIGrabTouchBegin ... passive grabs on touches XIUngrabTouchBegin XIAllowTouchEvents ... Allow/reject touch event sequences New XIQueryDevice classes: XITouchClassInfo Requires libX11 1.5 for GetReqSized Co-authored by: Chase Douglas <chase.douglas@canonical.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-11-12Include config.h from source filesPeter Hutterer
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Gaetan Nadon <memsize@videotron.ca> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-11-12Stop unnecessary calls to size_classesPeter Hutterer
Xmalloc is a macro evaluating its argument twice. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-11-12Fix duplicate sizeof in copy_classesPeter Hutterer
sizeof(bla * sizeof()) is'nt right. Plus add some () to the next_block call too to emphasise that *nclasses is the multiplicator. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-10-10Remove superfluous assignment of lib->classes in XIQueryDevices.Peter Hutterer
A few lines south from here we malloc lib->classes, this assignment is a leftover from 225071e2e67fb65a0258397212f9826c9b25e078. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
2011-09-28Use a separate nclasses variable in XIQueryDevicePeter Hutterer
No functional changes, just clarifying the code. If we skip over unknown classes, lib->num_classes != wire->num_classe. Use a separate variable to make that change more explicit and align the code closer with wireToDeviceChangedEvent. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Daniel Stone <daniel@fooishbar.org>
2011-09-18Use AM_CPPFLAGS to use in tree headers before installed headersJeremy Huddleston
This addresses a build failure found by the tinderbox. Signed-off-by: Jeremy Huddleston <jeremyhu@apple.com> Reviewed-by: Gaetan Nadon <memsize@videotron.ca>
2011-09-17Support XI 2.1 XIScrollClassPeter Hutterer
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-09-17Support XI 2.1 internallyPeter Hutterer
Add the required constants to pretend to support XI 2.1. Having named constants for 2.1 seems a bit pointless, so let's just use the numbers directly. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-08-19Handle unknown device classes.Peter Hutterer
If the server sends an unknown device class in response to an XIQueryDevice call, no memory is allocated for these classes but we still write type and sourceid as well as setting to->classes[i]. The latter causes multiple classes to point to the same memory field. Move the common code of assigning these three into the respective class type handlers so to automatically skip any unknown classes. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-08-12Don't use the protocol defines for 2.0 versioning.Peter Hutterer
Otherwise we run into the old problem again: recompiling libXi against newer inputproto headers will appear to change the version support, potentially causing errors or other misbehaviours. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-08-02Add XI2 library-internal array offsets to XIint.hPeter Hutterer
These defines are currently defined in XI.h and XI2.h. Their only use is as offset into a library-internal array. Add them to XIint.h to have them where they belong. These defines do not have any effect on the protocol. They are simply offsets into an array for libXi-specific version checking. The defines are added to this header for readability, given that we cannot remove them from the protocol without potentially breaking clients (who should never use these anyway, but...) means they will never get hit. Future defines for these offsets will only be added to libXi, not the protocol. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-06-03Use Data, not Data32 in XIPassiveGrabDevicePeter Hutterer
Data32 takes and iterates over an array of longs, thus skipping every 4 bytes on LP64. Here we only have arrays of ints, use the normal Data macro instead. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
2011-05-19Silence compiler warning due to differnent event conversion procsPeter Hutterer
XExtInt.c:161:5: warning: initialization from incompatible pointer type XSndExEv.c: In function 'XSendExtensionEvent': XSndExEv.c:84:8: warning: assignment from incompatible pointer type Xlib and libXi differ in the conversion functions. libXi takes an xEvent** and a num_events parameter since it may split an event into multiple xEvents. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-05-19Silence compiler warning in XListDProp.cPeter Hutterer
XListDProp.c: In function 'XListDeviceProperties': XListDProp.c:72:9: warning: pointer targets in passing argument 2 of '_XRead32' differ in signedness /usr/include/X11/Xlibint.h:652:13: note: expected 'long int *' but argument is of type 'Atom *' Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2011-05-05Remove a few unused assignments.Peter Hutterer
Found by static analyzer. Reported-by: Jeremy Huddleston <jeremyhu@apple.com> Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Jeremy Huddleston <jeremyhu@apple.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 14:51:15 +0000