diff options
Diffstat (limited to 'xorg-server/Xext')
| -rw-r--r-- | xorg-server/Xext/bigreq.c | 2 | ||||
| -rw-r--r-- | xorg-server/Xext/geext.c | 9 | ||||
| -rw-r--r-- | xorg-server/Xext/mbuf.c | 322 | ||||
| -rw-r--r-- | xorg-server/Xext/panoramiX.c | 4 | ||||
| -rw-r--r-- | xorg-server/Xext/saver.c | 3085 | ||||
| -rw-r--r-- | xorg-server/Xext/security.c | 2311 | ||||
| -rw-r--r-- | xorg-server/Xext/securitysrv.h | 2 | ||||
| -rw-r--r-- | xorg-server/Xext/shape.c | 2589 | ||||
| -rw-r--r-- | xorg-server/Xext/shm.c | 2557 | ||||
| -rw-r--r-- | xorg-server/Xext/syncsrv.h | 1 | ||||
| -rw-r--r-- | xorg-server/Xext/xcalibrate.c | 5 | ||||
| -rw-r--r-- | xorg-server/Xext/xcmisc.c | 2 | ||||
| -rw-r--r-- | xorg-server/Xext/xf86bigfont.c | 5 | ||||
| -rw-r--r-- | xorg-server/Xext/xres.c | 5 | ||||
| -rw-r--r-- | xorg-server/Xext/xvmc.c | 5 |
15 files changed, 5566 insertions, 5338 deletions
diff --git a/xorg-server/Xext/bigreq.c b/xorg-server/Xext/bigreq.c index 582b670b0..f9f15edc5 100644 --- a/xorg-server/Xext/bigreq.c +++ b/xorg-server/Xext/bigreq.c @@ -42,6 +42,8 @@ from The Open Group. static DISPATCH_PROC(ProcBigReqDispatch); +void BigReqExtensionInit(INITARGS); + void BigReqExtensionInit(INITARGS) { diff --git a/xorg-server/Xext/geext.c b/xorg-server/Xext/geext.c index 1ddcbb1f6..6fad4aec0 100644 --- a/xorg-server/Xext/geext.c +++ b/xorg-server/Xext/geext.c @@ -32,10 +32,7 @@ #include "geint.h" #include "geext.h" - -/* Currently supported XGE version */ -#define SERVER_GE_MAJOR 1 -#define SERVER_GE_MINOR 0 +#include "protocol-versions.h" #define rClient(obj) (clients[CLIENT_ID((obj)->resource)]) @@ -81,8 +78,8 @@ ProcGEQueryVersion(ClientPtr client) rep.sequenceNumber = client->sequence; /* return the supported version by the server */ - rep.majorVersion = SERVER_GE_MAJOR; - rep.minorVersion = SERVER_GE_MINOR; + rep.majorVersion = SERVER_GE_MAJOR_VERSION; + rep.minorVersion = SERVER_GE_MINOR_VERSION; /* Remember version the client requested */ pGEClient->major_version = stuff->majorVersion; diff --git a/xorg-server/Xext/mbuf.c b/xorg-server/Xext/mbuf.c index 55e732a9f..1f2497463 100644 --- a/xorg-server/Xext/mbuf.c +++ b/xorg-server/Xext/mbuf.c @@ -41,8 +41,9 @@ in this Software without prior written authorization from The Open Group. #include "resource.h" #include "opaque.h" #include "sleepuntil.h" -#define _MULTIBUF_SERVER_ /* don't want Xlib structures */ -#include <X11/extensions/multibufst.h> +#include "inputstr.h" +#include <X11/extensions/multibufconst.h> +#include <X11/extensions/multibufproto.h> #include <stdio.h> #if !defined(WIN32) @@ -57,6 +58,251 @@ in this Software without prior written authorization from The Open Group. #define ValidEventMasks (ExposureMask|MultibufferClobberNotifyMask|MultibufferUpdateNotifyMask) +/* The _Multibuffer and _Multibuffers structures below refer to each other, + * so we need this forward declaration + */ +typedef struct _Multibuffers *MultibuffersPtr; + +/* + * per-Multibuffer data + */ +typedef struct _Multibuffer { + MultibuffersPtr pMultibuffers; /* associated window data */ + Mask eventMask; /* MultibufferClobberNotifyMask|ExposureMask|MultibufferUpdateNotifyMask */ + Mask otherEventMask; /* mask of all other clients event masks */ + OtherClients *otherClients; /* other clients that want events */ + int number; /* index of this buffer into array */ + int side; /* always Mono */ + int clobber; /* Unclobbered, PartiallyClobbered, FullClobbered */ + PixmapPtr pPixmap; /* associated pixmap */ +} MultibufferRec, *MultibufferPtr; + +/* + * per-window data + */ + +typedef struct _Multibuffers { + WindowPtr pWindow; /* associated window */ + int numMultibuffer; /* count of buffers */ + int refcnt; /* ref count for delete */ + int displayedMultibuffer; /* currently active buffer */ + int updateAction; /* Undefined, Background, Untouched, Copied */ + int updateHint; /* Frequent, Intermittent, Static */ + int windowMode; /* always Mono */ + + TimeStamp lastUpdate; /* time of last update */ + + unsigned short width, height; /* last known window size */ + short x, y; /* for static gravity */ + + MultibufferPtr buffers; /* array of numMultibuffer buffers */ +} MultibuffersRec; + +/* + * per-screen data + */ +typedef struct _MultibufferScreen { + PositionWindowProcPtr PositionWindow; /* pWin, x,y */ +} MultibufferScreenRec, *MultibufferScreenPtr; + +/* + * per display-image-buffers request data. + */ + +typedef struct _DisplayRequest { + struct _DisplayRequest *next; + TimeStamp activateTime; + ClientPtr pClient; + XID id; +} DisplayRequestRec, *DisplayRequestPtr; + +#define DestroyWindowMask (1L<<0) +#define PositionWindowMask (1L<<1) +#define PostValidateTreeMask (1L<<2) +#define ClipNotifyMask (1L<<3) +#define WindowExposuresMask (1L<<4) +#define CopyWindowMask (1L<<5) +#define ClearToBackgroundMask (1L<<6) +#define ChangeWindowAttributesMask (1L<<7) + +extern int MultibufferScreenIndex; +extern int MultibufferWindowIndex; + +extern RESTYPE MultibufferDrawableResType; + +extern void MultibufferUpdate( /* pMbuffer, time */ + MultibufferPtr /* pMultibuffer */, + CARD32 /* time */ + ); +extern void MultibufferExpose( /* pMbuffer, pRegion */ + MultibufferPtr /* pMultibuffer */, + RegionPtr /* pRegion */ + ); +extern void MultibufferClobber( /* pMbuffer */ + MultibufferPtr /* pMultibuffer */ + ); + +typedef struct _mbufWindow *mbufWindowPtr; + +void DestroyImageBuffers (WindowPtr pWin); + +/* + * per-buffer data + */ + +#define MB_DISPLAYED_BUFFER(pMBWindow) \ + ((pMBWindow)->buffers + (pMBWindow)->displayedMultibuffer) + +typedef struct _mbufBuffer { + mbufWindowPtr pMBWindow; /* associated window data */ + Mask eventMask; /* client event mask */ + Mask otherEventMask; /* union of other clients' event masks */ + OtherClientsPtr otherClients; /* other clients that want events */ + int number; /* index of this buffer into array */ + int side; /* stero side: always Mono */ + int clobber; /* clober state */ + DrawablePtr pDrawable; /* associated drawable */ +} mbufBufferRec, *mbufBufferPtr; + + +/* + * per-window data + */ + +#define MB_WINDOW_PRIV(pWin) \ + ((mbufWindowPtr)((pWin)->devPrivates[MultibufferWindowIndex].ptr)) + +typedef struct _mbufWindow { + WindowPtr pWindow; /* associated window */ + int numMultibuffer; /* count of buffers */ + mbufBufferPtr buffers; /* array of (numMultibuffer) buffers */ + int displayedMultibuffer; /* currently active buffer */ + int updateAction; /* Undefined, Background, + Untouched, Copied */ + int updateHint; /* Frequent, Intermittent, Static */ + int windowMode; /* always Mono */ + TimeStamp lastUpdate; /* time of last update */ + short x, y; /* for static gravity */ + unsigned short width, height; /* last known window size */ + DevUnion devPrivate; +} mbufWindowRec; + + +/* + * per-screen data + */ + +#define MB_SCREEN_PRIV(pScreen) \ + ((mbufScreenPtr)((pScreen)->devPrivates[MultibufferScreenIndex].ptr)) + +typedef struct _mbufScreen { + long mbufWindowCount; /* count of multibuffered windows */ + + /* Wrap pScreen->DestroyWindow */ + DestroyWindowProcPtr DestroyWindow; + long funcsWrapped; /* flags which functions are wrapped */ + + /* Initialized by device-dependent section */ + int nInfo; /* number of buffer info rec's */ + xMbufBufferInfo *pInfo; /* buffer info (for Normal buffers) */ + + int (* CreateImageBuffers)( + WindowPtr /* pWin */, + int /* nbuf */, + XID * /* ids */, + int /* action */, + int /* hint */ + ); + void (* DestroyImageBuffers)( + WindowPtr /* pWin */ + ); + void (* DisplayImageBuffers)( + ScreenPtr /* pScreen */, + mbufBufferPtr * /* ppMBBuffer */, + mbufWindowPtr * /* ppMBWindow */, + int /* nbuf */ + ); + void (* ClearImageBufferArea)( + mbufBufferPtr /* pMBBuffer */, + short /* x */, + short /* y */, + unsigned short /* width */, + unsigned short /* height */, + Bool /* exposures */ + ); + Bool (* ChangeMBufferAttributes)( /* pMBWindow, vmask */ + /* FIXME */ + ); + Bool (* ChangeBufferAttributes)( /* pMBBuffer, vmask */ + /* FIXME */ + ); + void (* DeleteBufferDrawable)( + DrawablePtr /* pDrawable */ + ); + void (* WrapScreenFuncs)( + ScreenPtr /* pScreen */ + ); + void (* ResetProc)( + ScreenPtr /* pScreen */ + ); + DevUnion devPrivate; +} mbufScreenRec, *mbufScreenPtr; + + +/* Privates to mbufScreenRec */ + +#ifdef _MULTIBUF_PIXMAP_ +#define MB_SCREEN_PRIV_PIXMAP(pScreen) \ + ((mbufPixmapPrivPtr) MB_SCREEN_PRIV((pScreen))->devPrivate.ptr) + +typedef struct _mbufPixmapPriv +{ + /* Pointers to wrapped functions */ + PositionWindowProcPtr PositionWindow; /* pWin, x,y */ + long funcsWrapped; /* flags which functions are wrapped */ +} mbufPixmapPrivRec, *mbufPixmapPrivPtr; +#endif /* _MULTIBUF_PIXMAP_ */ + + +#ifdef _MULTIBUF_BUFFER_ + +extern int frameWindowPrivateIndex; + +#define MB_SCREEN_PRIV_BUFFER(pScreen) \ + ((mbufBufferPrivPtr) MB_SCREEN_PRIV((pScreen))->devPrivate.ptr) + +typedef struct _mbufBufferPriv +{ + DevUnion *frameBuffer; /* Array of screen framebuffers */ + DevUnion selectPlane; /* Plane(s) that select displayed buffer */ + + /* + * Note: subtractRgn and unionRgn may overlap. subtractRgn is a union + * of all the old clipLists of the windows that are displaying + * the backbuffer. unionRgn is the union of all the new clipLists + * of the same windows. + */ + + RegionRec backBuffer; /* Area of screen displaying back buffer */ + RegionRec subtractRgn; /* Regions lost to backBuffer */ + RegionRec unionRgn; /* Regions gained by backBuffer */ + Bool rgnChanged; /* TRUE if "backBuffer" needs to be updated */ + + void (* CopyBufferBits)(); /* pMBWindow, srcBufferNum, dstBufferNum */ + void (* DrawSelectPlane)(); /* pScreen, selectPlane, pRegion, bufferNum */ + + /* Pointers to wrapped functions */ + PostValidateTreeProcPtr PostValidateTree; /* pParent, pChild, kind */ + ClipNotifyProcPtr ClipNotify; /* pWin, dx, dy */ + WindowExposuresProcPtr WindowExposures; /* pWin, pRegion */ + CopyWindowProcPtr CopyWindow; /* pWin, oldPt, pOldRegion */ + ClearToBackgroundProcPtr ClearToBackground; /* pWin, x,y,w,h, sendExpose */ + ChangeWindowAttributesProcPtr ChangeWindowAttributes; /* pWin, vmask */ + long funcsWrapped; /* flags which functions are wrapped */ + unsigned inClearToBackground:1; /* used by WindowExposure */ +} mbufBufferPrivRec, *mbufBufferPrivPtr; +#endif /* _MULTIBUF_BUFFER_ */ + static int MultibufferEventBase; static int MultibufferErrorBase; static int MultibufferScreenPrivKeyIndex; @@ -495,6 +741,7 @@ ProcDisplayImageBuffers (client) int i, j; CARD32 minDelay; TimeStamp activateTime, bufferTime; + int rc; REQUEST_AT_LEAST_SIZE (xMbufDisplayImageBuffersReq); @@ -516,9 +763,9 @@ ProcDisplayImageBuffers (client) activateTime.milliseconds = 0; for (i = 0; i < nbuf; i++) { - pMultibuffer[i] = (MultibufferPtr) LookupIDByType (ids[i], -MultibufferResType); - if (!pMultibuffer[i]) + rc = dixLookupResourceByType(&pMultibuffer[i], ids[i], + MultibufferResType, client, DixUseAccess); + if (rc != Success) { xfree(ppMultibuffers); xfree(pMultibuffer); @@ -589,8 +836,9 @@ ProcSetMBufferAttributes (client) rc = dixLookupWindow(&pWin, stuff->window, client, DixUnknownAccess); if (rc != Success) return rc; - pMultibuffers = (MultibuffersPtr)LookupIDByType (pWin->drawable.id, MultibuffersResType); - if (!pMultibuffers) + rc = dixLookupResourceByType(&pMultibuffers, pWin->drawable.id, + MultibufferResType, client, DixSetAttrAccess); + if (rc != Success) return BadMatch; len = stuff->length - bytes_to_int32(sizeof (xMbufSetMBufferAttributesReq)); vmask = stuff->valueMask; @@ -641,8 +889,9 @@ ProcGetMBufferAttributes (client) rc = dixLookupWindow(&pWin, stuff->window, client, DixUnknownAccess); if (rc != Success) return rc; - pMultibuffers = (MultibuffersPtr)LookupIDByType (pWin->drawable.id, MultibuffersResType); - if (!pMultibuffers) + rc = dixLookupResourceByType(&pMultibuffers, pWin->drawable.id, + MultibufferResType, client, DixGetAttrAccess); + if (rc != Success) return BadAccess; ids = xalloc (pMultibuffers->numMultibuffer * sizeof (XID)); if (!ids) @@ -682,10 +931,13 @@ ProcSetBufferAttributes (client) XID *vlist; Mask eventMask; int result; + int rc; REQUEST_AT_LEAST_SIZE (xMbufSetBufferAttributesReq); - pMultibuffer = (MultibufferPtr) LookupIDByType (stuff->buffer, MultibufferResType); - if (!pMultibuffer) + + rc = dixLookupResourceByType(&pMultibuffer, stuff->buffer, + MultibufferResType, client, DixSetAttrAccess); + if (rc != Success) return MultibufferErrorBase + MultibufferBadBuffer; len = stuff->length - bytes_to_int32(sizeof (xMbufSetBufferAttributesReq)); vmask = stuff->valueMask; @@ -722,10 +974,12 @@ ProcGetBufferAttributes (client) xMbufGetBufferAttributesReply rep; OtherClientsPtr other; int n; + int rc; REQUEST_SIZE_MATCH (xMbufGetBufferAttributesReq); - pMultibuffer = (MultibufferPtr) LookupIDByType (stuff->buffer, MultibufferResType); - if (!pMultibuffer) + rc = dixLookupResourceByType(&pMultibuffer, stuff->buffer, + MultibufferResType, client, DixGetAttrAccess); + if (rc != Success) return MultibufferErrorBase + MultibufferBadBuffer; rep.type = X_Reply; rep.sequenceNumber = client->sequence; @@ -832,10 +1086,12 @@ ProcClearImageBufferArea (client) int width, height; DrawablePtr pDrawable; ScreenPtr pScreen; + int rc; REQUEST_SIZE_MATCH (xMbufClearImageBufferAreaReq); - pMultibuffer = (MultibufferPtr) LookupIDByType (stuff->buffer, MultibufferResType); - if (!pMultibuffer) + rc = dixLookupResourceByType(&pMultibuffer, stuff->buffer, + MultibufferResType, client, DixWriteAccess); + if (rc != Success) return MultibufferErrorBase + MultibufferBadBuffer; if ((stuff->exposures != xTrue) && (stuff->exposures != xFalse)) { @@ -1253,42 +1509,6 @@ GetBufferPointer (pWin, i) return (DrawablePtr) pMultibuffers->buffers[i].pPixmap; } -int -DisplayImageBuffers (ids, nbuf) - XID *ids; - int nbuf; -{ - MultibufferPtr *pMultibuffer; - MultibuffersPtr *pMultibuffers; - int i, j; - - pMultibuffer = xalloc (nbuf * sizeof *pMultibuffer + - nbuf * sizeof *pMultibuffers); - if (!pMultibuffer) - return BadAlloc; - pMultibuffers = (MultibuffersPtr *) (pMultibuffer + nbuf); - for (i = 0; i < nbuf; i++) - { - pMultibuffer[i] = (MultibufferPtr) LookupIDByType (ids[i], MultibufferResType); - if (!pMultibuffer[i]) - { - xfree (pMultibuffer); - return MultibufferErrorBase + MultibufferBadBuffer; - } - pMultibuffers[i] = pMultibuffer[i]->pMultibuffers; - for (j = 0; j < i; j++) - if (pMultibuffers[i] == pMultibuffers[j]) - { - xfree (pMultibuffer); - return BadMatch; - } - } - PerformDisplayRequest (pMultibuffers, pMultibuffer, nbuf); - xfree (pMultibuffer); - return Success; -} - - static Bool QueueDisplayRequest (client, activateTime) ClientPtr client; diff --git a/xorg-server/Xext/panoramiX.c b/xorg-server/Xext/panoramiX.c index c5fb70061..4b7b07e1d 100644 --- a/xorg-server/Xext/panoramiX.c +++ b/xorg-server/Xext/panoramiX.c @@ -56,9 +56,7 @@ Equipment Corporation. #include "picturestr.h" #endif #include "modinit.h" - -#define SERVER_PANORAMIX_MAJOR_VERSION 1 -#define SERVER_PANORAMIX_MINOR_VERSION 1 +#include "protocol-versions.h" #ifdef GLXPROXY extern VisualPtr glxMatchVisual(ScreenPtr pScreen, diff --git a/xorg-server/Xext/saver.c b/xorg-server/Xext/saver.c index 22eb0fe2b..90d18ead5 100644 --- a/xorg-server/Xext/saver.c +++ b/xorg-server/Xext/saver.c @@ -1,1542 +1,1543 @@ -/* - * -Copyright (c) 1992 X Consortium - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of the X Consortium shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from the X Consortium. - * - * Author: Keith Packard, MIT X Consortium - */ - - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#else -#define SCREENSAVER -#endif - -#ifdef CreateWindow -#undef CreateWindow -#endif - -#include <X11/X.h> -#include <X11/Xproto.h> -#include "misc.h" -#include "os.h" -#include "windowstr.h" -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "extnsionst.h" -#include "dixstruct.h" -#include "resource.h" -#include "opaque.h" -#include <X11/extensions/saverproto.h> -#include "gcstruct.h" -#include "cursorstr.h" -#include "colormapst.h" -#include "xace.h" -#ifdef PANORAMIX -#include "panoramiX.h" -#include "panoramiXsrv.h" -#endif -#ifdef DPMSExtension -#include <X11/extensions/dpmsconst.h> -#endif - -#include <stdio.h> - -#include "modinit.h" - -static int ScreenSaverEventBase = 0; - -static DISPATCH_PROC(ProcScreenSaverQueryInfo); -static DISPATCH_PROC(ProcScreenSaverDispatch); -static DISPATCH_PROC(ProcScreenSaverQueryVersion); -static DISPATCH_PROC(ProcScreenSaverSelectInput); -static DISPATCH_PROC(ProcScreenSaverSetAttributes); -static DISPATCH_PROC(ProcScreenSaverUnsetAttributes); -static DISPATCH_PROC(ProcScreenSaverSuspend); -static DISPATCH_PROC(SProcScreenSaverDispatch); -static DISPATCH_PROC(SProcScreenSaverQueryInfo); -static DISPATCH_PROC(SProcScreenSaverQueryVersion); -static DISPATCH_PROC(SProcScreenSaverSelectInput); -static DISPATCH_PROC(SProcScreenSaverSetAttributes); -static DISPATCH_PROC(SProcScreenSaverUnsetAttributes); -static DISPATCH_PROC(SProcScreenSaverSuspend); - -static Bool ScreenSaverHandle ( - ScreenPtr /* pScreen */, - int /* xstate */, - Bool /* force */ - ); - -static Bool -CreateSaverWindow ( - ScreenPtr /* pScreen */ - ); - -static Bool -DestroySaverWindow ( - ScreenPtr /* pScreen */ - ); - -static void -UninstallSaverColormap ( - ScreenPtr /* pScreen */ - ); - -static void -CheckScreenPrivate ( - ScreenPtr /* pScreen */ - ); - -static void SScreenSaverNotifyEvent ( - xScreenSaverNotifyEvent * /* from */, - xScreenSaverNotifyEvent * /* to */ - ); - -static RESTYPE SuspendType; /* resource type for suspension records */ - -typedef struct _ScreenSaverSuspension *ScreenSaverSuspensionPtr; - -/* List of clients that are suspending the screensaver. */ -static ScreenSaverSuspensionPtr suspendingClients = NULL; - -/* - * clientResource is a resource ID that's added when the record is - * allocated, so the record is freed and the screensaver resumed when - * the client disconnects. count is the number of times the client has - * requested the screensaver be suspended. - */ -typedef struct _ScreenSaverSuspension -{ - ScreenSaverSuspensionPtr next; - ClientPtr pClient; - XID clientResource; - int count; -} ScreenSaverSuspensionRec; - -static int ScreenSaverFreeSuspend( - pointer /*value */, - XID /* id */ -); - -/* - * each screen has a list of clients requesting - * ScreenSaverNotify events. Each client has a resource - * for each screen it selects ScreenSaverNotify input for, - * this resource is used to delete the ScreenSaverNotifyRec - * entry from the per-screen queue. - */ - -static RESTYPE SaverEventType; /* resource type for event masks */ - -typedef struct _ScreenSaverEvent *ScreenSaverEventPtr; - -typedef struct _ScreenSaverEvent { - ScreenSaverEventPtr next; - ClientPtr client; - ScreenPtr screen; - XID resource; - CARD32 mask; -} ScreenSaverEventRec; - -static int ScreenSaverFreeEvents( - pointer /* value */, - XID /* id */ -); - -static Bool setEventMask ( - ScreenPtr /* pScreen */, - ClientPtr /* client */, - unsigned long /* mask */ -); - -static unsigned long getEventMask ( - ScreenPtr /* pScreen */, - ClientPtr /* client */ -); - -/* - * when a client sets the screen saver attributes, a resource is - * kept to be freed when the client exits - */ - -static RESTYPE AttrType; /* resource type for attributes */ - -typedef struct _ScreenSaverAttr { - ScreenPtr screen; - ClientPtr client; - XID resource; - short x, y; - unsigned short width, height, borderWidth; - unsigned char class; - unsigned char depth; - VisualID visual; - CursorPtr pCursor; - PixmapPtr pBackgroundPixmap; - PixmapPtr pBorderPixmap; - Colormap colormap; - unsigned long mask; /* no pixmaps or cursors */ - unsigned long *values; -} ScreenSaverAttrRec, *ScreenSaverAttrPtr; - -static int ScreenSaverFreeAttr ( - pointer /* value */, - XID /* id */ -); - -static void FreeAttrs ( - ScreenSaverAttrPtr /* pAttr */ -); - -static void FreeScreenAttr ( - ScreenSaverAttrPtr /* pAttr */ -); - -static void -SendScreenSaverNotify ( - ScreenPtr /* pScreen */, - int /* state */, - Bool /* forced */ -); - -typedef struct _ScreenSaverScreenPrivate { - ScreenSaverEventPtr events; - ScreenSaverAttrPtr attr; - Bool hasWindow; - Colormap installedMap; -} ScreenSaverScreenPrivateRec, *ScreenSaverScreenPrivatePtr; - -static ScreenSaverScreenPrivatePtr -MakeScreenPrivate ( - ScreenPtr /* pScreen */ - ); - -static int ScreenPrivateKeyIndex; -static DevPrivateKey ScreenPrivateKey = &ScreenPrivateKeyIndex; - -#define GetScreenPrivate(s) ((ScreenSaverScreenPrivatePtr) \ - dixLookupPrivate(&(s)->devPrivates, ScreenPrivateKey)) -#define SetScreenPrivate(s,v) \ - dixSetPrivate(&(s)->devPrivates, ScreenPrivateKey, v); -#define SetupScreen(s) ScreenSaverScreenPrivatePtr pPriv = (s ? GetScreenPrivate(s) : NULL) - -#define New(t) (xalloc (sizeof (t))) - -/**************** - * ScreenSaverExtensionInit - * - * Called from InitExtensions in main() or from QueryExtension() if the - * extension is dynamically loaded. - * - ****************/ - -void -ScreenSaverExtensionInit(INITARGS) -{ - ExtensionEntry *extEntry; - int i; - ScreenPtr pScreen; - - AttrType = CreateNewResourceType(ScreenSaverFreeAttr); - SaverEventType = CreateNewResourceType(ScreenSaverFreeEvents); - SuspendType = CreateNewResourceType(ScreenSaverFreeSuspend); - - for (i = 0; i < screenInfo.numScreens; i++) - { - pScreen = screenInfo.screens[i]; - SetScreenPrivate (pScreen, NULL); - } - if (AttrType && SaverEventType && SuspendType && - (extEntry = AddExtension(ScreenSaverName, ScreenSaverNumberEvents, 0, - ProcScreenSaverDispatch, SProcScreenSaverDispatch, - NULL, StandardMinorOpcode))) - { - ScreenSaverEventBase = extEntry->eventBase; - EventSwapVector[ScreenSaverEventBase] = (EventSwapPtr) SScreenSaverNotifyEvent; - } -} - -static void -CheckScreenPrivate (ScreenPtr pScreen) -{ - SetupScreen (pScreen); - - if (!pPriv) - return; - if (!pPriv->attr && !pPriv->events && - !pPriv->hasWindow && pPriv->installedMap == None) - { - xfree (pPriv); - SetScreenPrivate (pScreen, NULL); - savedScreenInfo[pScreen->myNum].ExternalScreenSaver = NULL; - } -} - -static ScreenSaverScreenPrivatePtr -MakeScreenPrivate (ScreenPtr pScreen) -{ - SetupScreen (pScreen); - - if (pPriv) - return pPriv; - pPriv = New (ScreenSaverScreenPrivateRec); - if (!pPriv) - return 0; - pPriv->events = 0; - pPriv->attr = 0; - pPriv->hasWindow = FALSE; - pPriv->installedMap = None; - SetScreenPrivate (pScreen, pPriv); - savedScreenInfo[pScreen->myNum].ExternalScreenSaver = ScreenSaverHandle; - return pPriv; -} - -static unsigned long -getEventMask (ScreenPtr pScreen, ClientPtr client) -{ - SetupScreen(pScreen); - ScreenSaverEventPtr pEv; - - if (!pPriv) - return 0; - for (pEv = pPriv->events; pEv; pEv = pEv->next) - if (pEv->client == client) - return pEv->mask; - return 0; -} - -static Bool -setEventMask (ScreenPtr pScreen, ClientPtr client, unsigned long mask) -{ - SetupScreen(pScreen); - ScreenSaverEventPtr pEv, *pPrev; - - if (getEventMask (pScreen, client) == mask) - return TRUE; - if (!pPriv) - { - pPriv = MakeScreenPrivate (pScreen); - if (!pPriv) - return FALSE; - } - for (pPrev = &pPriv->events; (pEv = *pPrev) != 0; pPrev = &pEv->next) - if (pEv->client == client) - break; - if (mask == 0) - { - FreeResource (pEv->resource, SaverEventType); - *pPrev = pEv->next; - xfree (pEv); - CheckScreenPrivate (pScreen); - } - else - { - if (!pEv) - { - pEv = New (ScreenSaverEventRec); - if (!pEv) - { - CheckScreenPrivate (pScreen); - return FALSE; - } - *pPrev = pEv; - pEv->next = NULL; - pEv->client = client; - pEv->screen = pScreen; - pEv->resource = FakeClientID (client->index); - if (!AddResource (pEv->resource, SaverEventType, (pointer) pEv)) - return FALSE; - } - pEv->mask = mask; - } - return TRUE; -} - -static void -FreeAttrs (ScreenSaverAttrPtr pAttr) -{ - PixmapPtr pPixmap; - CursorPtr pCursor; - - if ((pPixmap = pAttr->pBackgroundPixmap) != 0) - (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap); - if ((pPixmap = pAttr->pBorderPixmap) != 0) - (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap); - if ((pCursor = pAttr->pCursor) != 0) - FreeCursor (pCursor, (Cursor) 0); -} - -static void -FreeScreenAttr (ScreenSaverAttrPtr pAttr) -{ - FreeAttrs (pAttr); - xfree (pAttr->values); - xfree (pAttr); -} - -static int -ScreenSaverFreeEvents (pointer value, XID id) -{ - ScreenSaverEventPtr pOld = (ScreenSaverEventPtr)value; - ScreenPtr pScreen = pOld->screen; - SetupScreen (pScreen); - ScreenSaverEventPtr pEv, *pPrev; - - if (!pPriv) - return TRUE; - for (pPrev = &pPriv->events; (pEv = *pPrev) != 0; pPrev = &pEv->next) - if (pEv == pOld) - break; - if (!pEv) - return TRUE; - *pPrev = pEv->next; - xfree (pEv); - CheckScreenPrivate (pScreen); - return TRUE; -} - -static int -ScreenSaverFreeAttr (pointer value, XID id) -{ - ScreenSaverAttrPtr pOldAttr = (ScreenSaverAttrPtr)value; - ScreenPtr pScreen = pOldAttr->screen; - SetupScreen (pScreen); - - if (!pPriv) - return TRUE; - if (pPriv->attr != pOldAttr) - return TRUE; - FreeScreenAttr (pOldAttr); - pPriv->attr = NULL; - if (pPriv->hasWindow) - { - dixSaveScreens (serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset); - dixSaveScreens (serverClient, SCREEN_SAVER_FORCER, ScreenSaverActive); - } - CheckScreenPrivate (pScreen); - return TRUE; -} - -static int -ScreenSaverFreeSuspend (pointer value, XID id) -{ - ScreenSaverSuspensionPtr data = (ScreenSaverSuspensionPtr) value; - ScreenSaverSuspensionPtr *prev, this; - - /* Unlink and free the suspension record for the client */ - for (prev = &suspendingClients; (this = *prev); prev = &this->next) - { - if (this == data) - { - *prev = this->next; - xfree (this); - break; - } - } - - /* Reenable the screensaver if this was the last client suspending it. */ - if (screenSaverSuspended && suspendingClients == NULL) - { - screenSaverSuspended = FALSE; - - /* The screensaver could be active, since suspending it (by design) - doesn't prevent it from being forceably activated */ -#ifdef DPMSExtension - if (screenIsSaved != SCREEN_SAVER_ON && DPMSPowerLevel == DPMSModeOn) -#else - if (screenIsSaved != SCREEN_SAVER_ON) -#endif - { - UpdateCurrentTimeIf(); - lastDeviceEventTime = currentTime; - SetScreenSaverTimer(); - } - } - - return Success; -} - -static void -SendScreenSaverNotify (ScreenPtr pScreen, int state, Bool forced) -{ - ScreenSaverScreenPrivatePtr pPriv; - ScreenSaverEventPtr pEv; - unsigned long mask; - xScreenSaverNotifyEvent ev; - ClientPtr client; - int kind; - - UpdateCurrentTimeIf (); - mask = ScreenSaverNotifyMask; - if (state == ScreenSaverCycle) - mask = ScreenSaverCycleMask; - pScreen = screenInfo.screens[pScreen->myNum]; - pPriv = GetScreenPrivate(pScreen); - if (!pPriv) - return; - if (pPriv->attr) - kind = ScreenSaverExternal; - else if (ScreenSaverBlanking != DontPreferBlanking) - kind = ScreenSaverBlanked; - else - kind = ScreenSaverInternal; - for (pEv = pPriv->events; pEv; pEv = pEv->next) - { - client = pEv->client; - if (client->clientGone) - continue; - if (!(pEv->mask & mask)) - continue; - ev.type = ScreenSaverNotify + ScreenSaverEventBase; - ev.state = state; - ev.sequenceNumber = client->sequence; - ev.timestamp = currentTime.milliseconds; - ev.root = WindowTable[pScreen->myNum]->drawable.id; - ev.window = savedScreenInfo[pScreen->myNum].wid; - ev.kind = kind; - ev.forced = forced; - WriteEventsToClient (client, 1, (xEvent *) &ev); - } -} - -static void -SScreenSaverNotifyEvent (xScreenSaverNotifyEvent *from, - xScreenSaverNotifyEvent *to) -{ - to->type = from->type; - to->state = from->state; - cpswaps (from->sequenceNumber, to->sequenceNumber); - cpswapl (from->timestamp, to->timestamp); - cpswapl (from->root, to->root); - cpswapl (from->window, to->window); - to->kind = from->kind; - to->forced = from->forced; -} - -static void -UninstallSaverColormap (ScreenPtr pScreen) -{ - SetupScreen(pScreen); - ColormapPtr pCmap; - int rc; - - if (pPriv && pPriv->installedMap != None) - { - rc = dixLookupResourceByType((pointer *)&pCmap, pPriv->installedMap, - RT_COLORMAP, serverClient, - DixUninstallAccess); - if (rc == Success) - (*pCmap->pScreen->UninstallColormap) (pCmap); - pPriv->installedMap = None; - CheckScreenPrivate (pScreen); - } -} - -static Bool -CreateSaverWindow (ScreenPtr pScreen) -{ - SetupScreen (pScreen); - ScreenSaverStuffPtr pSaver; - ScreenSaverAttrPtr pAttr; - WindowPtr pWin; - int result; - unsigned long mask; - Colormap *installedMaps; - int numInstalled; - int i; - Colormap wantMap; - ColormapPtr pCmap; - - pSaver = &savedScreenInfo[pScreen->myNum]; - if (pSaver->pWindow) - { - pSaver->pWindow = NullWindow; - FreeResource (pSaver->wid, RT_NONE); - if (pPriv) - { - UninstallSaverColormap (pScreen); - pPriv->hasWindow = FALSE; - CheckScreenPrivate (pScreen); - } - } - - if (!pPriv || !(pAttr = pPriv->attr)) - return FALSE; - - pPriv->installedMap = None; - - if (GrabInProgress && GrabInProgress != pAttr->client->index) - return FALSE; - - pWin = CreateWindow (pSaver->wid, WindowTable[pScreen->myNum], - pAttr->x, pAttr->y, pAttr->width, pAttr->height, - pAttr->borderWidth, pAttr->class, - pAttr->mask, (XID *)pAttr->values, - pAttr->depth, serverClient, pAttr->visual, - &result); - if (!pWin) - return FALSE; - - if (!AddResource(pWin->drawable.id, RT_WINDOW, pWin)) - return FALSE; - - mask = 0; - if (pAttr->pBackgroundPixmap) - { - pWin->backgroundState = BackgroundPixmap; - pWin->background.pixmap = pAttr->pBackgroundPixmap; - pAttr->pBackgroundPixmap->refcnt++; - mask |= CWBackPixmap; - } - if (pAttr->pBorderPixmap) - { - pWin->borderIsPixel = FALSE; - pWin->border.pixmap = pAttr->pBorderPixmap; - pAttr->pBorderPixmap->refcnt++; - mask |= CWBorderPixmap; - } - if (pAttr->pCursor) - { - if (!pWin->optional) - if (!MakeWindowOptional (pWin)) - { - FreeResource (pWin->drawable.id, RT_NONE); - return FALSE; - } - if (pWin->optional->cursor) - FreeCursor (pWin->optional->cursor, (Cursor)0); - pWin->optional->cursor = pAttr->pCursor; - pAttr->pCursor->refcnt++; - pWin->cursorIsNone = FALSE; - CheckWindowOptionalNeed (pWin); - mask |= CWCursor; - } - if (mask) - (*pScreen->ChangeWindowAttributes) (pWin, mask); - - if (pAttr->colormap != None) - (void) ChangeWindowAttributes (pWin, CWColormap, &pAttr->colormap, - serverClient); - - MapWindow (pWin, serverClient); - - pPriv->hasWindow = TRUE; - pSaver->pWindow = pWin; - - /* check and install our own colormap if it isn't installed now */ - wantMap = wColormap (pWin); - if (wantMap == None) - return TRUE; - installedMaps = xalloc (pScreen->maxInstalledCmaps * sizeof (Colormap)); - numInstalled = (*pWin->drawable.pScreen->ListInstalledColormaps) - (pScreen, installedMaps); - for (i = 0; i < numInstalled; i++) - if (installedMaps[i] == wantMap) - break; - - xfree ((char *) installedMaps); - - if (i < numInstalled) - return TRUE; - - result = dixLookupResourceByType((pointer *)&pCmap, wantMap, RT_COLORMAP, - serverClient, DixInstallAccess); - if (result != Success) - return TRUE; - - pPriv->installedMap = wantMap; - - (*pCmap->pScreen->InstallColormap) (pCmap); - - return TRUE; -} - -static Bool -DestroySaverWindow (ScreenPtr pScreen) -{ - SetupScreen(pScreen); - ScreenSaverStuffPtr pSaver; - - if (!pPriv || !pPriv->hasWindow) - return FALSE; - - pSaver = &savedScreenInfo[pScreen->myNum]; - if (pSaver->pWindow) - { - pSaver->pWindow = NullWindow; - FreeResource (pSaver->wid, RT_NONE); - } - pPriv->hasWindow = FALSE; - CheckScreenPrivate (pScreen); - UninstallSaverColormap (pScreen); - return TRUE; -} - -static Bool -ScreenSaverHandle (ScreenPtr pScreen, int xstate, Bool force) -{ - int state = 0; - Bool ret = FALSE; - ScreenSaverScreenPrivatePtr pPriv; - - switch (xstate) - { - case SCREEN_SAVER_ON: - state = ScreenSaverOn; - ret = CreateSaverWindow (pScreen); - break; - case SCREEN_SAVER_OFF: - state = ScreenSaverOff; - ret = DestroySaverWindow (pScreen); - break; - case SCREEN_SAVER_CYCLE: - state = ScreenSaverCycle; - pPriv = GetScreenPrivate (pScreen); - if (pPriv && pPriv->hasWindow) - ret = TRUE; - - } -#ifdef PANORAMIX - if(noPanoramiXExtension || !pScreen->myNum) -#endif - SendScreenSaverNotify (pScreen, state, force); - return ret; -} - -static int -ProcScreenSaverQueryVersion (ClientPtr client) -{ - xScreenSaverQueryVersionReply rep; - int n; - - REQUEST_SIZE_MATCH (xScreenSaverQueryVersionReq); - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.majorVersion = ScreenSaverMajorVersion; - rep.minorVersion = ScreenSaverMinorVersion; - if (client->swapped) { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - } - WriteToClient(client, sizeof (xScreenSaverQueryVersionReply), (char *)&rep); - return (client->noClientException); -} - -static int -ProcScreenSaverQueryInfo (ClientPtr client) -{ - REQUEST(xScreenSaverQueryInfoReq); - xScreenSaverQueryInfoReply rep; - int n, rc; - ScreenSaverStuffPtr pSaver; - DrawablePtr pDraw; - CARD32 lastInput; - ScreenSaverScreenPrivatePtr pPriv; - - REQUEST_SIZE_MATCH (xScreenSaverQueryInfoReq); - rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, - DixGetAttrAccess); - if (rc != Success) - return rc; - rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, pDraw->pScreen, - DixGetAttrAccess); - if (rc != Success) - return rc; - - pSaver = &savedScreenInfo[pDraw->pScreen->myNum]; - pPriv = GetScreenPrivate (pDraw->pScreen); - - UpdateCurrentTime (); - lastInput = GetTimeInMillis() - lastDeviceEventTime.milliseconds; - - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.window = pSaver->wid; - if (screenIsSaved != SCREEN_SAVER_OFF) - { - rep.state = ScreenSaverOn; - if (ScreenSaverTime) - rep.tilOrSince = lastInput - ScreenSaverTime; - else - rep.tilOrSince = 0; - } - else - { - if (ScreenSaverTime) - { - rep.state = ScreenSaverOff; - if (ScreenSaverTime < lastInput) - rep.tilOrSince = 0; - else - rep.tilOrSince = ScreenSaverTime - lastInput; - } - else - { - rep.state = ScreenSaverDisabled; - rep.tilOrSince = 0; - } - } - rep.idle = lastInput; - rep.eventMask = getEventMask (pDraw->pScreen, client); - if (pPriv && pPriv->attr) - rep.kind = ScreenSaverExternal; - else if (ScreenSaverBlanking != DontPreferBlanking) - rep.kind = ScreenSaverBlanked; - else - rep.kind = ScreenSaverInternal; - if (client->swapped) - { - swaps (&rep.sequenceNumber, n); - swapl (&rep.length, n); - swapl (&rep.window, n); - swapl (&rep.tilOrSince, n); - swapl (&rep.idle, n); - swapl (&rep.eventMask, n); - } - WriteToClient(client, sizeof (xScreenSaverQueryInfoReply), (char *)&rep); - return (client->noClientException); -} - -static int -ProcScreenSaverSelectInput (ClientPtr client) -{ - REQUEST(xScreenSaverSelectInputReq); - DrawablePtr pDraw; - int rc; - - REQUEST_SIZE_MATCH (xScreenSaverSelectInputReq); - rc = dixLookupDrawable (&pDraw, stuff->drawable, client, 0, - DixGetAttrAccess); - if (rc != Success) - return rc; - - rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, pDraw->pScreen, - DixSetAttrAccess); - if (rc != Success) - return rc; - - if (!setEventMask (pDraw->pScreen, client, stuff->eventMask)) - return BadAlloc; - return Success; -} - -static int -ScreenSaverSetAttributes (ClientPtr client) -{ - REQUEST(xScreenSaverSetAttributesReq); - DrawablePtr pDraw; - WindowPtr pParent; - ScreenPtr pScreen; - ScreenSaverScreenPrivatePtr pPriv = 0; - ScreenSaverAttrPtr pAttr = 0; - int ret, len, class, bw, depth; - unsigned long visual; - int idepth, ivisual; - Bool fOK; - DepthPtr pDepth; - WindowOptPtr ancwopt; - unsigned int *pVlist; - unsigned long *values = 0; - unsigned long tmask, imask; - unsigned long val; - Pixmap pixID; - PixmapPtr pPixmap; - Cursor cursorID; - CursorPtr pCursor; - Colormap cmap; - ColormapPtr pCmap; - - REQUEST_AT_LEAST_SIZE (xScreenSaverSetAttributesReq); - ret = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, - DixGetAttrAccess); - if (ret != Success) - return ret; - pScreen = pDraw->pScreen; - pParent = WindowTable[pScreen->myNum]; - - ret = XaceHook(XACE_SCREENSAVER_ACCESS, client, pScreen, DixSetAttrAccess); - if (ret != Success) - return ret; - - len = stuff->length - bytes_to_int32(sizeof(xScreenSaverSetAttributesReq)); - if (Ones(stuff->mask) != len) - return BadLength; - if (!stuff->width || !stuff->height) - { - client->errorValue = 0; - return BadValue; - } - switch (class = stuff->c_class) - { - case CopyFromParent: - case InputOnly: - case InputOutput: - break; - default: - client->errorValue = class; - return BadValue; - } - bw = stuff->borderWidth; - depth = stuff->depth; - visual = stuff->visualID; - - /* copied directly from CreateWindow */ - - if (class == CopyFromParent) - class = pParent->drawable.class; - - if ((class != InputOutput) && (class != InputOnly)) - { - client->errorValue = class; - return BadValue; - } - - if ((class != InputOnly) && (pParent->drawable.class == InputOnly)) - return BadMatch; - - if ((class == InputOnly) && ((bw != 0) || (depth != 0))) - return BadMatch; - - if ((class == InputOutput) && (depth == 0)) - depth = pParent->drawable.depth; - ancwopt = pParent->optional; - if (!ancwopt) - ancwopt = FindWindowWithOptional(pParent)->optional; - if (visual == CopyFromParent) - visual = ancwopt->visual; - - /* Find out if the depth and visual are acceptable for this Screen */ - if ((visual != ancwopt->visual) || (depth != pParent->drawable.depth)) - { - fOK = FALSE; - for(idepth = 0; idepth < pScreen->numDepths; idepth++) - { - pDepth = (DepthPtr) &pScreen->allowedDepths[idepth]; - if ((depth == pDepth->depth) || (depth == 0)) - { - for (ivisual = 0; ivisual < pDepth->numVids; ivisual++) - { - if (visual == pDepth->vids[ivisual]) - { - fOK = TRUE; - break; - } - } - } - } - if (fOK == FALSE) - return BadMatch; - } - - if (((stuff->mask & (CWBorderPixmap | CWBorderPixel)) == 0) && - (class != InputOnly) && - (depth != pParent->drawable.depth)) - { - return BadMatch; - } - - if (((stuff->mask & CWColormap) == 0) && - (class != InputOnly) && - ((visual != ancwopt->visual) || (ancwopt->colormap == None))) - { - return BadMatch; - } - - /* end of errors from CreateWindow */ - - pPriv = GetScreenPrivate (pScreen); - if (pPriv && pPriv->attr) - { - if (pPriv->attr->client != client) - return BadAccess; - } - if (!pPriv) - { - pPriv = MakeScreenPrivate (pScreen); - if (!pPriv) - return FALSE; - } - pAttr = New (ScreenSaverAttrRec); - if (!pAttr) - { - ret = BadAlloc; - goto bail; - } - /* over allocate for override redirect */ - values = xalloc ((len + 1) * sizeof (unsigned long)); - if (!values) - { - ret = BadAlloc; - goto bail; - } - pAttr->screen = pScreen; - pAttr->client = client; - pAttr->x = stuff->x; - pAttr->y = stuff->y; - pAttr->width = stuff->width; - pAttr->height = stuff->height; - pAttr->borderWidth = stuff->borderWidth; - pAttr->class = stuff->c_class; - pAttr->depth = depth; - pAttr->visual = visual; - pAttr->colormap = None; - pAttr->pCursor = NullCursor; - pAttr->pBackgroundPixmap = NullPixmap; - pAttr->pBorderPixmap = NullPixmap; - pAttr->values = values; - /* - * go through the mask, checking the values, - * looking up pixmaps and cursors and hold a reference - * to them. - */ - pAttr->mask = tmask = stuff->mask | CWOverrideRedirect; - pVlist = (unsigned int *) (stuff + 1); - while (tmask) { - imask = lowbit (tmask); - tmask &= ~imask; - switch (imask) - { - case CWBackPixmap: - pixID = (Pixmap )*pVlist; - if (pixID == None) - { - *values++ = None; - } - else if (pixID == ParentRelative) - { - if (depth != pParent->drawable.depth) - { - ret = BadMatch; - goto PatchUp; - } - *values++ = ParentRelative; - } - else - { - ret = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP, - client, DixReadAccess); - if (ret == Success) - { - if ((pPixmap->drawable.depth != depth) || - (pPixmap->drawable.pScreen != pScreen)) - { - ret = BadMatch; - goto PatchUp; - } - pAttr->pBackgroundPixmap = pPixmap; - pPixmap->refcnt++; - pAttr->mask &= ~CWBackPixmap; - } - else - { - ret = (ret == BadValue) ? BadPixmap : ret; - client->errorValue = pixID; - goto PatchUp; - } - } - break; - case CWBackPixel: - *values++ = (CARD32) *pVlist; - break; - case CWBorderPixmap: - pixID = (Pixmap ) *pVlist; - if (pixID == CopyFromParent) - { - if (depth != pParent->drawable.depth) - { - ret = BadMatch; - goto PatchUp; - } - *values++ = CopyFromParent; - } - else - { - ret = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP, - client, DixReadAccess); - if (ret == Success) - { - if ((pPixmap->drawable.depth != depth) || - (pPixmap->drawable.pScreen != pScreen)) - { - ret = BadMatch; - goto PatchUp; - } - pAttr->pBorderPixmap = pPixmap; - pPixmap->refcnt++; - pAttr->mask &= ~CWBorderPixmap; - } - else - { - ret = (ret == BadValue) ? BadPixmap : ret; - client->errorValue = pixID; - goto PatchUp; - } - } - break; - case CWBorderPixel: - *values++ = (CARD32) *pVlist; - break; - case CWBitGravity: - val = (CARD8 )*pVlist; - if (val > StaticGravity) - { - ret = BadValue; - client->errorValue = val; - goto PatchUp; - } - *values++ = val; - break; - case CWWinGravity: - val = (CARD8 )*pVlist; - if (val > StaticGravity) - { - ret = BadValue; - client->errorValue = val; - goto PatchUp; - } - *values++ = val; - break; - case CWBackingStore: - val = (CARD8 )*pVlist; - if ((val != NotUseful) && (val != WhenMapped) && (val != Always)) - { - ret = BadValue; - client->errorValue = val; - goto PatchUp; - } - *values++ = val; - break; - case CWBackingPlanes: - *values++ = (CARD32) *pVlist; - break; - case CWBackingPixel: - *values++ = (CARD32) *pVlist; - break; - case CWSaveUnder: - val = (BOOL) *pVlist; - if ((val != xTrue) && (val != xFalse)) - { - ret = BadValue; - client->errorValue = val; - goto PatchUp; - } - *values++ = val; - break; - case CWEventMask: - *values++ = (CARD32) *pVlist; - break; - case CWDontPropagate: - *values++ = (CARD32) *pVlist; - break; - case CWOverrideRedirect: - if (!(stuff->mask & CWOverrideRedirect)) - pVlist--; - else - { - val = (BOOL ) *pVlist; - if ((val != xTrue) && (val != xFalse)) - { - ret = BadValue; - client->errorValue = val; - goto PatchUp; - } - } - *values++ = xTrue; - break; - case CWColormap: - cmap = (Colormap) *pVlist; - ret = dixLookupResourceByType((pointer *)&pCmap, cmap, RT_COLORMAP, - client, DixUseAccess); - if (ret != Success) - { - ret = (ret == BadValue) ? BadColor : ret; - client->errorValue = cmap; - goto PatchUp; - } - if (pCmap->pVisual->vid != visual || pCmap->pScreen != pScreen) - { - ret = BadMatch; - goto PatchUp; - } - pAttr->colormap = cmap; - pAttr->mask &= ~CWColormap; - break; - case CWCursor: - cursorID = (Cursor ) *pVlist; - if ( cursorID == None) - { - *values++ = None; - } - else - { - ret = dixLookupResourceByType((pointer *)&pCursor, cursorID, - RT_CURSOR, client, DixUseAccess); - if (ret != Success) - { - ret = (ret == BadValue) ? BadCursor : ret; - client->errorValue = cursorID; - goto PatchUp; - } - pCursor->refcnt++; - pAttr->pCursor = pCursor; - pAttr->mask &= ~CWCursor; - } - break; - default: - ret = BadValue; - client->errorValue = stuff->mask; - goto PatchUp; - } - pVlist++; - } - if (pPriv->attr) - FreeScreenAttr (pPriv->attr); - pPriv->attr = pAttr; - pAttr->resource = FakeClientID (client->index); - if (!AddResource (pAttr->resource, AttrType, (pointer) pAttr)) - return BadAlloc; - return Success; -PatchUp: - FreeAttrs (pAttr); -bail: - CheckScreenPrivate (pScreen); - if (pAttr) xfree (pAttr->values); - xfree (pAttr); - return ret; -} - -static int -ScreenSaverUnsetAttributes (ClientPtr client) -{ - REQUEST(xScreenSaverSetAttributesReq); - DrawablePtr pDraw; - ScreenSaverScreenPrivatePtr pPriv; - int rc; - - REQUEST_SIZE_MATCH (xScreenSaverUnsetAttributesReq); - rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, - DixGetAttrAccess); - if (rc != Success) - return rc; - pPriv = GetScreenPrivate (pDraw->pScreen); - if (pPriv && pPriv->attr && pPriv->attr->client == client) - { - FreeResource (pPriv->attr->resource, AttrType); - FreeScreenAttr (pPriv->attr); - pPriv->attr = NULL; - CheckScreenPrivate (pDraw->pScreen); - } - return Success; -} - -static int -ProcScreenSaverSetAttributes (ClientPtr client) -{ -#ifdef PANORAMIX - if(!noPanoramiXExtension) { - REQUEST(xScreenSaverSetAttributesReq); - PanoramiXRes *draw; - PanoramiXRes *backPix = NULL; - PanoramiXRes *bordPix = NULL; - PanoramiXRes *cmap = NULL; - int i, status, len; - int pback_offset = 0, pbord_offset = 0, cmap_offset = 0; - XID orig_visual, tmp; - - REQUEST_AT_LEAST_SIZE (xScreenSaverSetAttributesReq); - - status = dixLookupResourceByClass((pointer *)&draw, stuff->drawable, - XRC_DRAWABLE, client, DixWriteAccess); - if (status != Success) - return (status == BadValue) ? BadDrawable : status; - - len = stuff->length - bytes_to_int32(sizeof(xScreenSaverSetAttributesReq)); - if (Ones(stuff->mask) != len) - return BadLength; - - if((Mask)stuff->mask & CWBackPixmap) { - pback_offset = Ones((Mask)stuff->mask & (CWBackPixmap - 1)); - tmp = *((CARD32 *) &stuff[1] + pback_offset); - if ((tmp != None) && (tmp != ParentRelative)) { - status = dixLookupResourceByType((pointer *)&backPix, tmp, - XRT_PIXMAP, client, - DixReadAccess); - if (status != Success) - return (status == BadValue) ? BadPixmap : status; - } - } - - if ((Mask)stuff->mask & CWBorderPixmap) { - pbord_offset = Ones((Mask)stuff->mask & (CWBorderPixmap - 1)); - tmp = *((CARD32 *) &stuff[1] + pbord_offset); - if (tmp != CopyFromParent) { - status = dixLookupResourceByType((pointer *)&bordPix, tmp, - XRT_PIXMAP, client, - DixReadAccess); - if (status != Success) - return (status == BadValue) ? BadPixmap : status; - } - } - - if ((Mask)stuff->mask & CWColormap) { - cmap_offset = Ones((Mask)stuff->mask & (CWColormap - 1)); - tmp = *((CARD32 *) &stuff[1] + cmap_offset); - if ((tmp != CopyFromParent) && (tmp != None)) { - status = dixLookupResourceByType((pointer *)&cmap, tmp, - XRT_COLORMAP, client, - DixReadAccess); - if (status != Success) - return (status == BadValue) ? BadColor : status; - } - } - - orig_visual = stuff->visualID; - - FOR_NSCREENS_BACKWARD(i) { - stuff->drawable = draw->info[i].id; - if (backPix) - *((CARD32 *) &stuff[1] + pback_offset) = backPix->info[i].id; - if (bordPix) - *((CARD32 *) &stuff[1] + pbord_offset) = bordPix->info[i].id; - if (cmap) - *((CARD32 *) &stuff[1] + cmap_offset) = cmap->info[i].id; - - if (orig_visual != CopyFromParent) - stuff->visualID = PanoramiXTranslateVisualID(i, orig_visual); - - status = ScreenSaverSetAttributes(client); - } - - return status; - } -#endif - - return ScreenSaverSetAttributes(client); -} - -static int -ProcScreenSaverUnsetAttributes (ClientPtr client) -{ -#ifdef PANORAMIX - if(!noPanoramiXExtension) { - REQUEST(xScreenSaverUnsetAttributesReq); - PanoramiXRes *draw; - int rc, i; - - rc = dixLookupResourceByClass((pointer *)&draw, stuff->drawable, - XRC_DRAWABLE, client, DixWriteAccess); - if (rc != Success) - return (rc == BadValue) ? BadDrawable : rc; - - for(i = PanoramiXNumScreens - 1; i > 0; i--) { - stuff->drawable = draw->info[i].id; - ScreenSaverUnsetAttributes(client); - } - - stuff->drawable = draw->info[0].id; - } -#endif - - return ScreenSaverUnsetAttributes(client); -} - -static int -ProcScreenSaverSuspend (ClientPtr client) -{ - ScreenSaverSuspensionPtr *prev, this; - - REQUEST(xScreenSaverSuspendReq); - REQUEST_SIZE_MATCH(xScreenSaverSuspendReq); - - /* Check if this client is suspending the screensaver */ - for (prev = &suspendingClients; (this = *prev); prev = &this->next) - if (this->pClient == client) - break; - - if (this) - { - if (stuff->suspend == TRUE) - this->count++; - else if (--this->count == 0) - FreeResource (this->clientResource, RT_NONE); - - return Success; - } - - /* If we get to this point, this client isn't suspending the screensaver */ - if (stuff->suspend == FALSE) - return Success; - - /* - * Allocate a suspension record for the client, and stop the screensaver - * if it isn't already suspended by another client. We attach a resource ID - * to the record, so the screensaver will be reenabled and the record freed - * if the client disconnects without reenabling it first. - */ - this = xalloc (sizeof (ScreenSaverSuspensionRec)); - - if (!this) - return BadAlloc; - - this->next = NULL; - this->pClient = client; - this->count = 1; - this->clientResource = FakeClientID (client->index); - - if (!AddResource (this->clientResource, SuspendType, (pointer) this)) - { - xfree (this); - return BadAlloc; - } - - *prev = this; - if (!screenSaverSuspended) - { - screenSaverSuspended = TRUE; - FreeScreenSaverTimer(); - } - - return (client->noClientException); -} - -static DISPATCH_PROC((*NormalVector[])) = { - ProcScreenSaverQueryVersion, - ProcScreenSaverQueryInfo, - ProcScreenSaverSelectInput, - ProcScreenSaverSetAttributes, - ProcScreenSaverUnsetAttributes, - ProcScreenSaverSuspend, -}; - -#define NUM_REQUESTS ((sizeof NormalVector) / (sizeof NormalVector[0])) - -static int -ProcScreenSaverDispatch (ClientPtr client) -{ - REQUEST(xReq); - - if (stuff->data < NUM_REQUESTS) - return (*NormalVector[stuff->data])(client); - return BadRequest; -} - -static int -SProcScreenSaverQueryVersion (ClientPtr client) -{ - REQUEST(xScreenSaverQueryVersionReq); - int n; - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH(xScreenSaverQueryVersionReq); - return ProcScreenSaverQueryVersion (client); -} - -static int -SProcScreenSaverQueryInfo (ClientPtr client) -{ - REQUEST(xScreenSaverQueryInfoReq); - int n; - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH(xScreenSaverQueryInfoReq); - swapl (&stuff->drawable, n); - return ProcScreenSaverQueryInfo (client); -} - -static int -SProcScreenSaverSelectInput (ClientPtr client) -{ - REQUEST(xScreenSaverSelectInputReq); - int n; - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH(xScreenSaverSelectInputReq); - swapl (&stuff->drawable, n); - swapl (&stuff->eventMask, n); - return ProcScreenSaverSelectInput (client); -} - -static int -SProcScreenSaverSetAttributes (ClientPtr client) -{ - REQUEST(xScreenSaverSetAttributesReq); - int n; - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE(xScreenSaverSetAttributesReq); - swapl (&stuff->drawable, n); - swaps (&stuff->x, n); - swaps (&stuff->y, n); - swaps (&stuff->width, n); - swaps (&stuff->height, n); - swaps (&stuff->borderWidth, n); - swapl (&stuff->visualID, n); - swapl (&stuff->mask, n); - SwapRestL(stuff); - return ProcScreenSaverSetAttributes (client); -} - -static int -SProcScreenSaverUnsetAttributes (ClientPtr client) -{ - REQUEST(xScreenSaverUnsetAttributesReq); - int n; - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH(xScreenSaverUnsetAttributesReq); - swapl (&stuff->drawable, n); - return ProcScreenSaverUnsetAttributes (client); -} - -static int -SProcScreenSaverSuspend (ClientPtr client) -{ - int n; - REQUEST(xScreenSaverSuspendReq); - - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xScreenSaverSuspendReq); - swapl(&stuff->suspend, n); - return ProcScreenSaverSuspend (client); -} - -static DISPATCH_PROC((*SwappedVector[])) = { - SProcScreenSaverQueryVersion, - SProcScreenSaverQueryInfo, - SProcScreenSaverSelectInput, - SProcScreenSaverSetAttributes, - SProcScreenSaverUnsetAttributes, - SProcScreenSaverSuspend, -}; - -static int -SProcScreenSaverDispatch (ClientPtr client) -{ - REQUEST(xReq); - - if (stuff->data < NUM_REQUESTS) - return (*SwappedVector[stuff->data])(client); - return BadRequest; -} +/*
+ *
+Copyright (c) 1992 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+ *
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#else
+#define SCREENSAVER
+#endif
+
+#ifdef CreateWindow
+#undef CreateWindow
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "misc.h"
+#include "os.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "extnsionst.h"
+#include "dixstruct.h"
+#include "resource.h"
+#include "opaque.h"
+#include <X11/extensions/saverproto.h>
+#include "gcstruct.h"
+#include "cursorstr.h"
+#include "colormapst.h"
+#include "xace.h"
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
+#ifdef DPMSExtension
+#include <X11/extensions/dpmsconst.h>
+#endif
+#include "protocol-versions.h"
+
+#include <stdio.h>
+
+#include "modinit.h"
+
+static int ScreenSaverEventBase = 0;
+
+static DISPATCH_PROC(ProcScreenSaverQueryInfo);
+static DISPATCH_PROC(ProcScreenSaverDispatch);
+static DISPATCH_PROC(ProcScreenSaverQueryVersion);
+static DISPATCH_PROC(ProcScreenSaverSelectInput);
+static DISPATCH_PROC(ProcScreenSaverSetAttributes);
+static DISPATCH_PROC(ProcScreenSaverUnsetAttributes);
+static DISPATCH_PROC(ProcScreenSaverSuspend);
+static DISPATCH_PROC(SProcScreenSaverDispatch);
+static DISPATCH_PROC(SProcScreenSaverQueryInfo);
+static DISPATCH_PROC(SProcScreenSaverQueryVersion);
+static DISPATCH_PROC(SProcScreenSaverSelectInput);
+static DISPATCH_PROC(SProcScreenSaverSetAttributes);
+static DISPATCH_PROC(SProcScreenSaverUnsetAttributes);
+static DISPATCH_PROC(SProcScreenSaverSuspend);
+
+static Bool ScreenSaverHandle (
+ ScreenPtr /* pScreen */,
+ int /* xstate */,
+ Bool /* force */
+ );
+
+static Bool
+CreateSaverWindow (
+ ScreenPtr /* pScreen */
+ );
+
+static Bool
+DestroySaverWindow (
+ ScreenPtr /* pScreen */
+ );
+
+static void
+UninstallSaverColormap (
+ ScreenPtr /* pScreen */
+ );
+
+static void
+CheckScreenPrivate (
+ ScreenPtr /* pScreen */
+ );
+
+static void SScreenSaverNotifyEvent (
+ xScreenSaverNotifyEvent * /* from */,
+ xScreenSaverNotifyEvent * /* to */
+ );
+
+static RESTYPE SuspendType; /* resource type for suspension records */
+
+typedef struct _ScreenSaverSuspension *ScreenSaverSuspensionPtr;
+
+/* List of clients that are suspending the screensaver. */
+static ScreenSaverSuspensionPtr suspendingClients = NULL;
+
+/*
+ * clientResource is a resource ID that's added when the record is
+ * allocated, so the record is freed and the screensaver resumed when
+ * the client disconnects. count is the number of times the client has
+ * requested the screensaver be suspended.
+ */
+typedef struct _ScreenSaverSuspension
+{
+ ScreenSaverSuspensionPtr next;
+ ClientPtr pClient;
+ XID clientResource;
+ int count;
+} ScreenSaverSuspensionRec;
+
+static int ScreenSaverFreeSuspend(
+ pointer /*value */,
+ XID /* id */
+);
+
+/*
+ * each screen has a list of clients requesting
+ * ScreenSaverNotify events. Each client has a resource
+ * for each screen it selects ScreenSaverNotify input for,
+ * this resource is used to delete the ScreenSaverNotifyRec
+ * entry from the per-screen queue.
+ */
+
+static RESTYPE SaverEventType; /* resource type for event masks */
+
+typedef struct _ScreenSaverEvent *ScreenSaverEventPtr;
+
+typedef struct _ScreenSaverEvent {
+ ScreenSaverEventPtr next;
+ ClientPtr client;
+ ScreenPtr screen;
+ XID resource;
+ CARD32 mask;
+} ScreenSaverEventRec;
+
+static int ScreenSaverFreeEvents(
+ pointer /* value */,
+ XID /* id */
+);
+
+static Bool setEventMask (
+ ScreenPtr /* pScreen */,
+ ClientPtr /* client */,
+ unsigned long /* mask */
+);
+
+static unsigned long getEventMask (
+ ScreenPtr /* pScreen */,
+ ClientPtr /* client */
+);
+
+/*
+ * when a client sets the screen saver attributes, a resource is
+ * kept to be freed when the client exits
+ */
+
+static RESTYPE AttrType; /* resource type for attributes */
+
+typedef struct _ScreenSaverAttr {
+ ScreenPtr screen;
+ ClientPtr client;
+ XID resource;
+ short x, y;
+ unsigned short width, height, borderWidth;
+ unsigned char class;
+ unsigned char depth;
+ VisualID visual;
+ CursorPtr pCursor;
+ PixmapPtr pBackgroundPixmap;
+ PixmapPtr pBorderPixmap;
+ Colormap colormap;
+ unsigned long mask; /* no pixmaps or cursors */
+ unsigned long *values;
+} ScreenSaverAttrRec, *ScreenSaverAttrPtr;
+
+static int ScreenSaverFreeAttr (
+ pointer /* value */,
+ XID /* id */
+);
+
+static void FreeAttrs (
+ ScreenSaverAttrPtr /* pAttr */
+);
+
+static void FreeScreenAttr (
+ ScreenSaverAttrPtr /* pAttr */
+);
+
+static void
+SendScreenSaverNotify (
+ ScreenPtr /* pScreen */,
+ int /* state */,
+ Bool /* forced */
+);
+
+typedef struct _ScreenSaverScreenPrivate {
+ ScreenSaverEventPtr events;
+ ScreenSaverAttrPtr attr;
+ Bool hasWindow;
+ Colormap installedMap;
+} ScreenSaverScreenPrivateRec, *ScreenSaverScreenPrivatePtr;
+
+static ScreenSaverScreenPrivatePtr
+MakeScreenPrivate (
+ ScreenPtr /* pScreen */
+ );
+
+static int ScreenPrivateKeyIndex;
+static DevPrivateKey ScreenPrivateKey = &ScreenPrivateKeyIndex;
+
+#define GetScreenPrivate(s) ((ScreenSaverScreenPrivatePtr) \
+ dixLookupPrivate(&(s)->devPrivates, ScreenPrivateKey))
+#define SetScreenPrivate(s,v) \
+ dixSetPrivate(&(s)->devPrivates, ScreenPrivateKey, v);
+#define SetupScreen(s) ScreenSaverScreenPrivatePtr pPriv = (s ? GetScreenPrivate(s) : NULL)
+
+#define New(t) (xalloc (sizeof (t)))
+
+/****************
+ * ScreenSaverExtensionInit
+ *
+ * Called from InitExtensions in main() or from QueryExtension() if the
+ * extension is dynamically loaded.
+ *
+ ****************/
+
+void
+ScreenSaverExtensionInit(INITARGS)
+{
+ ExtensionEntry *extEntry;
+ int i;
+ ScreenPtr pScreen;
+
+ AttrType = CreateNewResourceType(ScreenSaverFreeAttr);
+ SaverEventType = CreateNewResourceType(ScreenSaverFreeEvents);
+ SuspendType = CreateNewResourceType(ScreenSaverFreeSuspend);
+
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ pScreen = screenInfo.screens[i];
+ SetScreenPrivate (pScreen, NULL);
+ }
+ if (AttrType && SaverEventType && SuspendType &&
+ (extEntry = AddExtension(ScreenSaverName, ScreenSaverNumberEvents, 0,
+ ProcScreenSaverDispatch, SProcScreenSaverDispatch,
+ NULL, StandardMinorOpcode)))
+ {
+ ScreenSaverEventBase = extEntry->eventBase;
+ EventSwapVector[ScreenSaverEventBase] = (EventSwapPtr) SScreenSaverNotifyEvent;
+ }
+}
+
+static void
+CheckScreenPrivate (ScreenPtr pScreen)
+{
+ SetupScreen (pScreen);
+
+ if (!pPriv)
+ return;
+ if (!pPriv->attr && !pPriv->events &&
+ !pPriv->hasWindow && pPriv->installedMap == None)
+ {
+ xfree (pPriv);
+ SetScreenPrivate (pScreen, NULL);
+ savedScreenInfo[pScreen->myNum].ExternalScreenSaver = NULL;
+ }
+}
+
+static ScreenSaverScreenPrivatePtr
+MakeScreenPrivate (ScreenPtr pScreen)
+{
+ SetupScreen (pScreen);
+
+ if (pPriv)
+ return pPriv;
+ pPriv = New (ScreenSaverScreenPrivateRec);
+ if (!pPriv)
+ return 0;
+ pPriv->events = 0;
+ pPriv->attr = 0;
+ pPriv->hasWindow = FALSE;
+ pPriv->installedMap = None;
+ SetScreenPrivate (pScreen, pPriv);
+ savedScreenInfo[pScreen->myNum].ExternalScreenSaver = ScreenSaverHandle;
+ return pPriv;
+}
+
+static unsigned long
+getEventMask (ScreenPtr pScreen, ClientPtr client)
+{
+ SetupScreen(pScreen);
+ ScreenSaverEventPtr pEv;
+
+ if (!pPriv)
+ return 0;
+ for (pEv = pPriv->events; pEv; pEv = pEv->next)
+ if (pEv->client == client)
+ return pEv->mask;
+ return 0;
+}
+
+static Bool
+setEventMask (ScreenPtr pScreen, ClientPtr client, unsigned long mask)
+{
+ SetupScreen(pScreen);
+ ScreenSaverEventPtr pEv, *pPrev;
+
+ if (getEventMask (pScreen, client) == mask)
+ return TRUE;
+ if (!pPriv)
+ {
+ pPriv = MakeScreenPrivate (pScreen);
+ if (!pPriv)
+ return FALSE;
+ }
+ for (pPrev = &pPriv->events; (pEv = *pPrev) != 0; pPrev = &pEv->next)
+ if (pEv->client == client)
+ break;
+ if (mask == 0)
+ {
+ FreeResource (pEv->resource, SaverEventType);
+ *pPrev = pEv->next;
+ xfree (pEv);
+ CheckScreenPrivate (pScreen);
+ }
+ else
+ {
+ if (!pEv)
+ {
+ pEv = New (ScreenSaverEventRec);
+ if (!pEv)
+ {
+ CheckScreenPrivate (pScreen);
+ return FALSE;
+ }
+ *pPrev = pEv;
+ pEv->next = NULL;
+ pEv->client = client;
+ pEv->screen = pScreen;
+ pEv->resource = FakeClientID (client->index);
+ if (!AddResource (pEv->resource, SaverEventType, (pointer) pEv))
+ return FALSE;
+ }
+ pEv->mask = mask;
+ }
+ return TRUE;
+}
+
+static void
+FreeAttrs (ScreenSaverAttrPtr pAttr)
+{
+ PixmapPtr pPixmap;
+ CursorPtr pCursor;
+
+ if ((pPixmap = pAttr->pBackgroundPixmap) != 0)
+ (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap);
+ if ((pPixmap = pAttr->pBorderPixmap) != 0)
+ (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap);
+ if ((pCursor = pAttr->pCursor) != 0)
+ FreeCursor (pCursor, (Cursor) 0);
+}
+
+static void
+FreeScreenAttr (ScreenSaverAttrPtr pAttr)
+{
+ FreeAttrs (pAttr);
+ xfree (pAttr->values);
+ xfree (pAttr);
+}
+
+static int
+ScreenSaverFreeEvents (pointer value, XID id)
+{
+ ScreenSaverEventPtr pOld = (ScreenSaverEventPtr)value;
+ ScreenPtr pScreen = pOld->screen;
+ SetupScreen (pScreen);
+ ScreenSaverEventPtr pEv, *pPrev;
+
+ if (!pPriv)
+ return TRUE;
+ for (pPrev = &pPriv->events; (pEv = *pPrev) != 0; pPrev = &pEv->next)
+ if (pEv == pOld)
+ break;
+ if (!pEv)
+ return TRUE;
+ *pPrev = pEv->next;
+ xfree (pEv);
+ CheckScreenPrivate (pScreen);
+ return TRUE;
+}
+
+static int
+ScreenSaverFreeAttr (pointer value, XID id)
+{
+ ScreenSaverAttrPtr pOldAttr = (ScreenSaverAttrPtr)value;
+ ScreenPtr pScreen = pOldAttr->screen;
+ SetupScreen (pScreen);
+
+ if (!pPriv)
+ return TRUE;
+ if (pPriv->attr != pOldAttr)
+ return TRUE;
+ FreeScreenAttr (pOldAttr);
+ pPriv->attr = NULL;
+ if (pPriv->hasWindow)
+ {
+ dixSaveScreens (serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
+ dixSaveScreens (serverClient, SCREEN_SAVER_FORCER, ScreenSaverActive);
+ }
+ CheckScreenPrivate (pScreen);
+ return TRUE;
+}
+
+static int
+ScreenSaverFreeSuspend (pointer value, XID id)
+{
+ ScreenSaverSuspensionPtr data = (ScreenSaverSuspensionPtr) value;
+ ScreenSaverSuspensionPtr *prev, this;
+
+ /* Unlink and free the suspension record for the client */
+ for (prev = &suspendingClients; (this = *prev); prev = &this->next)
+ {
+ if (this == data)
+ {
+ *prev = this->next;
+ xfree (this);
+ break;
+ }
+ }
+
+ /* Reenable the screensaver if this was the last client suspending it. */
+ if (screenSaverSuspended && suspendingClients == NULL)
+ {
+ screenSaverSuspended = FALSE;
+
+ /* The screensaver could be active, since suspending it (by design)
+ doesn't prevent it from being forceably activated */
+#ifdef DPMSExtension
+ if (screenIsSaved != SCREEN_SAVER_ON && DPMSPowerLevel == DPMSModeOn)
+#else
+ if (screenIsSaved != SCREEN_SAVER_ON)
+#endif
+ {
+ UpdateCurrentTimeIf();
+ lastDeviceEventTime = currentTime;
+ SetScreenSaverTimer();
+ }
+ }
+
+ return Success;
+}
+
+static void
+SendScreenSaverNotify (ScreenPtr pScreen, int state, Bool forced)
+{
+ ScreenSaverScreenPrivatePtr pPriv;
+ ScreenSaverEventPtr pEv;
+ unsigned long mask;
+ xScreenSaverNotifyEvent ev;
+ ClientPtr client;
+ int kind;
+
+ UpdateCurrentTimeIf ();
+ mask = ScreenSaverNotifyMask;
+ if (state == ScreenSaverCycle)
+ mask = ScreenSaverCycleMask;
+ pScreen = screenInfo.screens[pScreen->myNum];
+ pPriv = GetScreenPrivate(pScreen);
+ if (!pPriv)
+ return;
+ if (pPriv->attr)
+ kind = ScreenSaverExternal;
+ else if (ScreenSaverBlanking != DontPreferBlanking)
+ kind = ScreenSaverBlanked;
+ else
+ kind = ScreenSaverInternal;
+ for (pEv = pPriv->events; pEv; pEv = pEv->next)
+ {
+ client = pEv->client;
+ if (client->clientGone)
+ continue;
+ if (!(pEv->mask & mask))
+ continue;
+ ev.type = ScreenSaverNotify + ScreenSaverEventBase;
+ ev.state = state;
+ ev.sequenceNumber = client->sequence;
+ ev.timestamp = currentTime.milliseconds;
+ ev.root = WindowTable[pScreen->myNum]->drawable.id;
+ ev.window = savedScreenInfo[pScreen->myNum].wid;
+ ev.kind = kind;
+ ev.forced = forced;
+ WriteEventsToClient (client, 1, (xEvent *) &ev);
+ }
+}
+
+static void
+SScreenSaverNotifyEvent (xScreenSaverNotifyEvent *from,
+ xScreenSaverNotifyEvent *to)
+{
+ to->type = from->type;
+ to->state = from->state;
+ cpswaps (from->sequenceNumber, to->sequenceNumber);
+ cpswapl (from->timestamp, to->timestamp);
+ cpswapl (from->root, to->root);
+ cpswapl (from->window, to->window);
+ to->kind = from->kind;
+ to->forced = from->forced;
+}
+
+static void
+UninstallSaverColormap (ScreenPtr pScreen)
+{
+ SetupScreen(pScreen);
+ ColormapPtr pCmap;
+ int rc;
+
+ if (pPriv && pPriv->installedMap != None)
+ {
+ rc = dixLookupResourceByType((pointer *)&pCmap, pPriv->installedMap,
+ RT_COLORMAP, serverClient,
+ DixUninstallAccess);
+ if (rc == Success)
+ (*pCmap->pScreen->UninstallColormap) (pCmap);
+ pPriv->installedMap = None;
+ CheckScreenPrivate (pScreen);
+ }
+}
+
+static Bool
+CreateSaverWindow (ScreenPtr pScreen)
+{
+ SetupScreen (pScreen);
+ ScreenSaverStuffPtr pSaver;
+ ScreenSaverAttrPtr pAttr;
+ WindowPtr pWin;
+ int result;
+ unsigned long mask;
+ Colormap *installedMaps;
+ int numInstalled;
+ int i;
+ Colormap wantMap;
+ ColormapPtr pCmap;
+
+ pSaver = &savedScreenInfo[pScreen->myNum];
+ if (pSaver->pWindow)
+ {
+ pSaver->pWindow = NullWindow;
+ FreeResource (pSaver->wid, RT_NONE);
+ if (pPriv)
+ {
+ UninstallSaverColormap (pScreen);
+ pPriv->hasWindow = FALSE;
+ CheckScreenPrivate (pScreen);
+ }
+ }
+
+ if (!pPriv || !(pAttr = pPriv->attr))
+ return FALSE;
+
+ pPriv->installedMap = None;
+
+ if (GrabInProgress && GrabInProgress != pAttr->client->index)
+ return FALSE;
+
+ pWin = CreateWindow (pSaver->wid, WindowTable[pScreen->myNum],
+ pAttr->x, pAttr->y, pAttr->width, pAttr->height,
+ pAttr->borderWidth, pAttr->class,
+ pAttr->mask, (XID *)pAttr->values,
+ pAttr->depth, serverClient, pAttr->visual,
+ &result);
+ if (!pWin)
+ return FALSE;
+
+ if (!AddResource(pWin->drawable.id, RT_WINDOW, pWin))
+ return FALSE;
+
+ mask = 0;
+ if (pAttr->pBackgroundPixmap)
+ {
+ pWin->backgroundState = BackgroundPixmap;
+ pWin->background.pixmap = pAttr->pBackgroundPixmap;
+ pAttr->pBackgroundPixmap->refcnt++;
+ mask |= CWBackPixmap;
+ }
+ if (pAttr->pBorderPixmap)
+ {
+ pWin->borderIsPixel = FALSE;
+ pWin->border.pixmap = pAttr->pBorderPixmap;
+ pAttr->pBorderPixmap->refcnt++;
+ mask |= CWBorderPixmap;
+ }
+ if (pAttr->pCursor)
+ {
+ if (!pWin->optional)
+ if (!MakeWindowOptional (pWin))
+ {
+ FreeResource (pWin->drawable.id, RT_NONE);
+ return FALSE;
+ }
+ if (pWin->optional->cursor)
+ FreeCursor (pWin->optional->cursor, (Cursor)0);
+ pWin->optional->cursor = pAttr->pCursor;
+ pAttr->pCursor->refcnt++;
+ pWin->cursorIsNone = FALSE;
+ CheckWindowOptionalNeed (pWin);
+ mask |= CWCursor;
+ }
+ if (mask)
+ (*pScreen->ChangeWindowAttributes) (pWin, mask);
+
+ if (pAttr->colormap != None)
+ (void) ChangeWindowAttributes (pWin, CWColormap, &pAttr->colormap,
+ serverClient);
+
+ MapWindow (pWin, serverClient);
+
+ pPriv->hasWindow = TRUE;
+ pSaver->pWindow = pWin;
+
+ /* check and install our own colormap if it isn't installed now */
+ wantMap = wColormap (pWin);
+ if (wantMap == None)
+ return TRUE;
+ installedMaps = xalloc (pScreen->maxInstalledCmaps * sizeof (Colormap));
+ numInstalled = (*pWin->drawable.pScreen->ListInstalledColormaps)
+ (pScreen, installedMaps);
+ for (i = 0; i < numInstalled; i++)
+ if (installedMaps[i] == wantMap)
+ break;
+
+ xfree ((char *) installedMaps);
+
+ if (i < numInstalled)
+ return TRUE;
+
+ result = dixLookupResourceByType((pointer *)&pCmap, wantMap, RT_COLORMAP,
+ serverClient, DixInstallAccess);
+ if (result != Success)
+ return TRUE;
+
+ pPriv->installedMap = wantMap;
+
+ (*pCmap->pScreen->InstallColormap) (pCmap);
+
+ return TRUE;
+}
+
+static Bool
+DestroySaverWindow (ScreenPtr pScreen)
+{
+ SetupScreen(pScreen);
+ ScreenSaverStuffPtr pSaver;
+
+ if (!pPriv || !pPriv->hasWindow)
+ return FALSE;
+
+ pSaver = &savedScreenInfo[pScreen->myNum];
+ if (pSaver->pWindow)
+ {
+ pSaver->pWindow = NullWindow;
+ FreeResource (pSaver->wid, RT_NONE);
+ }
+ pPriv->hasWindow = FALSE;
+ CheckScreenPrivate (pScreen);
+ UninstallSaverColormap (pScreen);
+ return TRUE;
+}
+
+static Bool
+ScreenSaverHandle (ScreenPtr pScreen, int xstate, Bool force)
+{
+ int state = 0;
+ Bool ret = FALSE;
+ ScreenSaverScreenPrivatePtr pPriv;
+
+ switch (xstate)
+ {
+ case SCREEN_SAVER_ON:
+ state = ScreenSaverOn;
+ ret = CreateSaverWindow (pScreen);
+ break;
+ case SCREEN_SAVER_OFF:
+ state = ScreenSaverOff;
+ ret = DestroySaverWindow (pScreen);
+ break;
+ case SCREEN_SAVER_CYCLE:
+ state = ScreenSaverCycle;
+ pPriv = GetScreenPrivate (pScreen);
+ if (pPriv && pPriv->hasWindow)
+ ret = TRUE;
+
+ }
+#ifdef PANORAMIX
+ if(noPanoramiXExtension || !pScreen->myNum)
+#endif
+ SendScreenSaverNotify (pScreen, state, force);
+ return ret;
+}
+
+static int
+ProcScreenSaverQueryVersion (ClientPtr client)
+{
+ xScreenSaverQueryVersionReply rep;
+ int n;
+
+ REQUEST_SIZE_MATCH (xScreenSaverQueryVersionReq);
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.majorVersion = SERVER_SAVER_MAJOR_VERSION;
+ rep.minorVersion = SERVER_SAVER_MINOR_VERSION;
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber, n);
+ swapl(&rep.length, n);
+ }
+ WriteToClient(client, sizeof (xScreenSaverQueryVersionReply), (char *)&rep);
+ return (client->noClientException);
+}
+
+static int
+ProcScreenSaverQueryInfo (ClientPtr client)
+{
+ REQUEST(xScreenSaverQueryInfoReq);
+ xScreenSaverQueryInfoReply rep;
+ int n, rc;
+ ScreenSaverStuffPtr pSaver;
+ DrawablePtr pDraw;
+ CARD32 lastInput;
+ ScreenSaverScreenPrivatePtr pPriv;
+
+ REQUEST_SIZE_MATCH (xScreenSaverQueryInfoReq);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, pDraw->pScreen,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ pSaver = &savedScreenInfo[pDraw->pScreen->myNum];
+ pPriv = GetScreenPrivate (pDraw->pScreen);
+
+ UpdateCurrentTime ();
+ lastInput = GetTimeInMillis() - lastDeviceEventTime.milliseconds;
+
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.window = pSaver->wid;
+ if (screenIsSaved != SCREEN_SAVER_OFF)
+ {
+ rep.state = ScreenSaverOn;
+ if (ScreenSaverTime)
+ rep.tilOrSince = lastInput - ScreenSaverTime;
+ else
+ rep.tilOrSince = 0;
+ }
+ else
+ {
+ if (ScreenSaverTime)
+ {
+ rep.state = ScreenSaverOff;
+ if (ScreenSaverTime < lastInput)
+ rep.tilOrSince = 0;
+ else
+ rep.tilOrSince = ScreenSaverTime - lastInput;
+ }
+ else
+ {
+ rep.state = ScreenSaverDisabled;
+ rep.tilOrSince = 0;
+ }
+ }
+ rep.idle = lastInput;
+ rep.eventMask = getEventMask (pDraw->pScreen, client);
+ if (pPriv && pPriv->attr)
+ rep.kind = ScreenSaverExternal;
+ else if (ScreenSaverBlanking != DontPreferBlanking)
+ rep.kind = ScreenSaverBlanked;
+ else
+ rep.kind = ScreenSaverInternal;
+ if (client->swapped)
+ {
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swapl (&rep.window, n);
+ swapl (&rep.tilOrSince, n);
+ swapl (&rep.idle, n);
+ swapl (&rep.eventMask, n);
+ }
+ WriteToClient(client, sizeof (xScreenSaverQueryInfoReply), (char *)&rep);
+ return (client->noClientException);
+}
+
+static int
+ProcScreenSaverSelectInput (ClientPtr client)
+{
+ REQUEST(xScreenSaverSelectInputReq);
+ DrawablePtr pDraw;
+ int rc;
+
+ REQUEST_SIZE_MATCH (xScreenSaverSelectInputReq);
+ rc = dixLookupDrawable (&pDraw, stuff->drawable, client, 0,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, pDraw->pScreen,
+ DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!setEventMask (pDraw->pScreen, client, stuff->eventMask))
+ return BadAlloc;
+ return Success;
+}
+
+static int
+ScreenSaverSetAttributes (ClientPtr client)
+{
+ REQUEST(xScreenSaverSetAttributesReq);
+ DrawablePtr pDraw;
+ WindowPtr pParent;
+ ScreenPtr pScreen;
+ ScreenSaverScreenPrivatePtr pPriv = 0;
+ ScreenSaverAttrPtr pAttr = 0;
+ int ret, len, class, bw, depth;
+ unsigned long visual;
+ int idepth, ivisual;
+ Bool fOK;
+ DepthPtr pDepth;
+ WindowOptPtr ancwopt;
+ unsigned int *pVlist;
+ unsigned long *values = 0;
+ unsigned long tmask, imask;
+ unsigned long val;
+ Pixmap pixID;
+ PixmapPtr pPixmap;
+ Cursor cursorID;
+ CursorPtr pCursor;
+ Colormap cmap;
+ ColormapPtr pCmap;
+
+ REQUEST_AT_LEAST_SIZE (xScreenSaverSetAttributesReq);
+ ret = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
+ DixGetAttrAccess);
+ if (ret != Success)
+ return ret;
+ pScreen = pDraw->pScreen;
+ pParent = WindowTable[pScreen->myNum];
+
+ ret = XaceHook(XACE_SCREENSAVER_ACCESS, client, pScreen, DixSetAttrAccess);
+ if (ret != Success)
+ return ret;
+
+ len = stuff->length - bytes_to_int32(sizeof(xScreenSaverSetAttributesReq));
+ if (Ones(stuff->mask) != len)
+ return BadLength;
+ if (!stuff->width || !stuff->height)
+ {
+ client->errorValue = 0;
+ return BadValue;
+ }
+ switch (class = stuff->c_class)
+ {
+ case CopyFromParent:
+ case InputOnly:
+ case InputOutput:
+ break;
+ default:
+ client->errorValue = class;
+ return BadValue;
+ }
+ bw = stuff->borderWidth;
+ depth = stuff->depth;
+ visual = stuff->visualID;
+
+ /* copied directly from CreateWindow */
+
+ if (class == CopyFromParent)
+ class = pParent->drawable.class;
+
+ if ((class != InputOutput) && (class != InputOnly))
+ {
+ client->errorValue = class;
+ return BadValue;
+ }
+
+ if ((class != InputOnly) && (pParent->drawable.class == InputOnly))
+ return BadMatch;
+
+ if ((class == InputOnly) && ((bw != 0) || (depth != 0)))
+ return BadMatch;
+
+ if ((class == InputOutput) && (depth == 0))
+ depth = pParent->drawable.depth;
+ ancwopt = pParent->optional;
+ if (!ancwopt)
+ ancwopt = FindWindowWithOptional(pParent)->optional;
+ if (visual == CopyFromParent)
+ visual = ancwopt->visual;
+
+ /* Find out if the depth and visual are acceptable for this Screen */
+ if ((visual != ancwopt->visual) || (depth != pParent->drawable.depth))
+ {
+ fOK = FALSE;
+ for(idepth = 0; idepth < pScreen->numDepths; idepth++)
+ {
+ pDepth = (DepthPtr) &pScreen->allowedDepths[idepth];
+ if ((depth == pDepth->depth) || (depth == 0))
+ {
+ for (ivisual = 0; ivisual < pDepth->numVids; ivisual++)
+ {
+ if (visual == pDepth->vids[ivisual])
+ {
+ fOK = TRUE;
+ break;
+ }
+ }
+ }
+ }
+ if (fOK == FALSE)
+ return BadMatch;
+ }
+
+ if (((stuff->mask & (CWBorderPixmap | CWBorderPixel)) == 0) &&
+ (class != InputOnly) &&
+ (depth != pParent->drawable.depth))
+ {
+ return BadMatch;
+ }
+
+ if (((stuff->mask & CWColormap) == 0) &&
+ (class != InputOnly) &&
+ ((visual != ancwopt->visual) || (ancwopt->colormap == None)))
+ {
+ return BadMatch;
+ }
+
+ /* end of errors from CreateWindow */
+
+ pPriv = GetScreenPrivate (pScreen);
+ if (pPriv && pPriv->attr)
+ {
+ if (pPriv->attr->client != client)
+ return BadAccess;
+ }
+ if (!pPriv)
+ {
+ pPriv = MakeScreenPrivate (pScreen);
+ if (!pPriv)
+ return FALSE;
+ }
+ pAttr = New (ScreenSaverAttrRec);
+ if (!pAttr)
+ {
+ ret = BadAlloc;
+ goto bail;
+ }
+ /* over allocate for override redirect */
+ values = xalloc ((len + 1) * sizeof (unsigned long));
+ if (!values)
+ {
+ ret = BadAlloc;
+ goto bail;
+ }
+ pAttr->screen = pScreen;
+ pAttr->client = client;
+ pAttr->x = stuff->x;
+ pAttr->y = stuff->y;
+ pAttr->width = stuff->width;
+ pAttr->height = stuff->height;
+ pAttr->borderWidth = stuff->borderWidth;
+ pAttr->class = stuff->c_class;
+ pAttr->depth = depth;
+ pAttr->visual = visual;
+ pAttr->colormap = None;
+ pAttr->pCursor = NullCursor;
+ pAttr->pBackgroundPixmap = NullPixmap;
+ pAttr->pBorderPixmap = NullPixmap;
+ pAttr->values = values;
+ /*
+ * go through the mask, checking the values,
+ * looking up pixmaps and cursors and hold a reference
+ * to them.
+ */
+ pAttr->mask = tmask = stuff->mask | CWOverrideRedirect;
+ pVlist = (unsigned int *) (stuff + 1);
+ while (tmask) {
+ imask = lowbit (tmask);
+ tmask &= ~imask;
+ switch (imask)
+ {
+ case CWBackPixmap:
+ pixID = (Pixmap )*pVlist;
+ if (pixID == None)
+ {
+ *values++ = None;
+ }
+ else if (pixID == ParentRelative)
+ {
+ if (depth != pParent->drawable.depth)
+ {
+ ret = BadMatch;
+ goto PatchUp;
+ }
+ *values++ = ParentRelative;
+ }
+ else
+ {
+ ret = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP,
+ client, DixReadAccess);
+ if (ret == Success)
+ {
+ if ((pPixmap->drawable.depth != depth) ||
+ (pPixmap->drawable.pScreen != pScreen))
+ {
+ ret = BadMatch;
+ goto PatchUp;
+ }
+ pAttr->pBackgroundPixmap = pPixmap;
+ pPixmap->refcnt++;
+ pAttr->mask &= ~CWBackPixmap;
+ }
+ else
+ {
+ ret = (ret == BadValue) ? BadPixmap : ret;
+ client->errorValue = pixID;
+ goto PatchUp;
+ }
+ }
+ break;
+ case CWBackPixel:
+ *values++ = (CARD32) *pVlist;
+ break;
+ case CWBorderPixmap:
+ pixID = (Pixmap ) *pVlist;
+ if (pixID == CopyFromParent)
+ {
+ if (depth != pParent->drawable.depth)
+ {
+ ret = BadMatch;
+ goto PatchUp;
+ }
+ *values++ = CopyFromParent;
+ }
+ else
+ {
+ ret = dixLookupResourceByType((pointer *)&pPixmap, pixID, RT_PIXMAP,
+ client, DixReadAccess);
+ if (ret == Success)
+ {
+ if ((pPixmap->drawable.depth != depth) ||
+ (pPixmap->drawable.pScreen != pScreen))
+ {
+ ret = BadMatch;
+ goto PatchUp;
+ }
+ pAttr->pBorderPixmap = pPixmap;
+ pPixmap->refcnt++;
+ pAttr->mask &= ~CWBorderPixmap;
+ }
+ else
+ {
+ ret = (ret == BadValue) ? BadPixmap : ret;
+ client->errorValue = pixID;
+ goto PatchUp;
+ }
+ }
+ break;
+ case CWBorderPixel:
+ *values++ = (CARD32) *pVlist;
+ break;
+ case CWBitGravity:
+ val = (CARD8 )*pVlist;
+ if (val > StaticGravity)
+ {
+ ret = BadValue;
+ client->errorValue = val;
+ goto PatchUp;
+ }
+ *values++ = val;
+ break;
+ case CWWinGravity:
+ val = (CARD8 )*pVlist;
+ if (val > StaticGravity)
+ {
+ ret = BadValue;
+ client->errorValue = val;
+ goto PatchUp;
+ }
+ *values++ = val;
+ break;
+ case CWBackingStore:
+ val = (CARD8 )*pVlist;
+ if ((val != NotUseful) && (val != WhenMapped) && (val != Always))
+ {
+ ret = BadValue;
+ client->errorValue = val;
+ goto PatchUp;
+ }
+ *values++ = val;
+ break;
+ case CWBackingPlanes:
+ *values++ = (CARD32) *pVlist;
+ break;
+ case CWBackingPixel:
+ *values++ = (CARD32) *pVlist;
+ break;
+ case CWSaveUnder:
+ val = (BOOL) *pVlist;
+ if ((val != xTrue) && (val != xFalse))
+ {
+ ret = BadValue;
+ client->errorValue = val;
+ goto PatchUp;
+ }
+ *values++ = val;
+ break;
+ case CWEventMask:
+ *values++ = (CARD32) *pVlist;
+ break;
+ case CWDontPropagate:
+ *values++ = (CARD32) *pVlist;
+ break;
+ case CWOverrideRedirect:
+ if (!(stuff->mask & CWOverrideRedirect))
+ pVlist--;
+ else
+ {
+ val = (BOOL ) *pVlist;
+ if ((val != xTrue) && (val != xFalse))
+ {
+ ret = BadValue;
+ client->errorValue = val;
+ goto PatchUp;
+ }
+ }
+ *values++ = xTrue;
+ break;
+ case CWColormap:
+ cmap = (Colormap) *pVlist;
+ ret = dixLookupResourceByType((pointer *)&pCmap, cmap, RT_COLORMAP,
+ client, DixUseAccess);
+ if (ret != Success)
+ {
+ ret = (ret == BadValue) ? BadColor : ret;
+ client->errorValue = cmap;
+ goto PatchUp;
+ }
+ if (pCmap->pVisual->vid != visual || pCmap->pScreen != pScreen)
+ {
+ ret = BadMatch;
+ goto PatchUp;
+ }
+ pAttr->colormap = cmap;
+ pAttr->mask &= ~CWColormap;
+ break;
+ case CWCursor:
+ cursorID = (Cursor ) *pVlist;
+ if ( cursorID == None)
+ {
+ *values++ = None;
+ }
+ else
+ {
+ ret = dixLookupResourceByType((pointer *)&pCursor, cursorID,
+ RT_CURSOR, client, DixUseAccess);
+ if (ret != Success)
+ {
+ ret = (ret == BadValue) ? BadCursor : ret;
+ client->errorValue = cursorID;
+ goto PatchUp;
+ }
+ pCursor->refcnt++;
+ pAttr->pCursor = pCursor;
+ pAttr->mask &= ~CWCursor;
+ }
+ break;
+ default:
+ ret = BadValue;
+ client->errorValue = stuff->mask;
+ goto PatchUp;
+ }
+ pVlist++;
+ }
+ if (pPriv->attr)
+ FreeScreenAttr (pPriv->attr);
+ pPriv->attr = pAttr;
+ pAttr->resource = FakeClientID (client->index);
+ if (!AddResource (pAttr->resource, AttrType, (pointer) pAttr))
+ return BadAlloc;
+ return Success;
+PatchUp:
+ FreeAttrs (pAttr);
+bail:
+ CheckScreenPrivate (pScreen);
+ if (pAttr) xfree (pAttr->values);
+ xfree (pAttr);
+ return ret;
+}
+
+static int
+ScreenSaverUnsetAttributes (ClientPtr client)
+{
+ REQUEST(xScreenSaverSetAttributesReq);
+ DrawablePtr pDraw;
+ ScreenSaverScreenPrivatePtr pPriv;
+ int rc;
+
+ REQUEST_SIZE_MATCH (xScreenSaverUnsetAttributesReq);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ pPriv = GetScreenPrivate (pDraw->pScreen);
+ if (pPriv && pPriv->attr && pPriv->attr->client == client)
+ {
+ FreeResource (pPriv->attr->resource, AttrType);
+ FreeScreenAttr (pPriv->attr);
+ pPriv->attr = NULL;
+ CheckScreenPrivate (pDraw->pScreen);
+ }
+ return Success;
+}
+
+static int
+ProcScreenSaverSetAttributes (ClientPtr client)
+{
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ REQUEST(xScreenSaverSetAttributesReq);
+ PanoramiXRes *draw;
+ PanoramiXRes *backPix = NULL;
+ PanoramiXRes *bordPix = NULL;
+ PanoramiXRes *cmap = NULL;
+ int i, status, len;
+ int pback_offset = 0, pbord_offset = 0, cmap_offset = 0;
+ XID orig_visual, tmp;
+
+ REQUEST_AT_LEAST_SIZE (xScreenSaverSetAttributesReq);
+
+ status = dixLookupResourceByClass((pointer *)&draw, stuff->drawable,
+ XRC_DRAWABLE, client, DixWriteAccess);
+ if (status != Success)
+ return (status == BadValue) ? BadDrawable : status;
+
+ len = stuff->length - bytes_to_int32(sizeof(xScreenSaverSetAttributesReq));
+ if (Ones(stuff->mask) != len)
+ return BadLength;
+
+ if((Mask)stuff->mask & CWBackPixmap) {
+ pback_offset = Ones((Mask)stuff->mask & (CWBackPixmap - 1));
+ tmp = *((CARD32 *) &stuff[1] + pback_offset);
+ if ((tmp != None) && (tmp != ParentRelative)) {
+ status = dixLookupResourceByType((pointer *)&backPix, tmp,
+ XRT_PIXMAP, client,
+ DixReadAccess);
+ if (status != Success)
+ return (status == BadValue) ? BadPixmap : status;
+ }
+ }
+
+ if ((Mask)stuff->mask & CWBorderPixmap) {
+ pbord_offset = Ones((Mask)stuff->mask & (CWBorderPixmap - 1));
+ tmp = *((CARD32 *) &stuff[1] + pbord_offset);
+ if (tmp != CopyFromParent) {
+ status = dixLookupResourceByType((pointer *)&bordPix, tmp,
+ XRT_PIXMAP, client,
+ DixReadAccess);
+ if (status != Success)
+ return (status == BadValue) ? BadPixmap : status;
+ }
+ }
+
+ if ((Mask)stuff->mask & CWColormap) {
+ cmap_offset = Ones((Mask)stuff->mask & (CWColormap - 1));
+ tmp = *((CARD32 *) &stuff[1] + cmap_offset);
+ if ((tmp != CopyFromParent) && (tmp != None)) {
+ status = dixLookupResourceByType((pointer *)&cmap, tmp,
+ XRT_COLORMAP, client,
+ DixReadAccess);
+ if (status != Success)
+ return (status == BadValue) ? BadColor : status;
+ }
+ }
+
+ orig_visual = stuff->visualID;
+
+ FOR_NSCREENS_BACKWARD(i) {
+ stuff->drawable = draw->info[i].id;
+ if (backPix)
+ *((CARD32 *) &stuff[1] + pback_offset) = backPix->info[i].id;
+ if (bordPix)
+ *((CARD32 *) &stuff[1] + pbord_offset) = bordPix->info[i].id;
+ if (cmap)
+ *((CARD32 *) &stuff[1] + cmap_offset) = cmap->info[i].id;
+
+ if (orig_visual != CopyFromParent)
+ stuff->visualID = PanoramiXTranslateVisualID(i, orig_visual);
+
+ status = ScreenSaverSetAttributes(client);
+ }
+
+ return status;
+ }
+#endif
+
+ return ScreenSaverSetAttributes(client);
+}
+
+static int
+ProcScreenSaverUnsetAttributes (ClientPtr client)
+{
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ REQUEST(xScreenSaverUnsetAttributesReq);
+ PanoramiXRes *draw;
+ int rc, i;
+
+ rc = dixLookupResourceByClass((pointer *)&draw, stuff->drawable,
+ XRC_DRAWABLE, client, DixWriteAccess);
+ if (rc != Success)
+ return (rc == BadValue) ? BadDrawable : rc;
+
+ for(i = PanoramiXNumScreens - 1; i > 0; i--) {
+ stuff->drawable = draw->info[i].id;
+ ScreenSaverUnsetAttributes(client);
+ }
+
+ stuff->drawable = draw->info[0].id;
+ }
+#endif
+
+ return ScreenSaverUnsetAttributes(client);
+}
+
+static int
+ProcScreenSaverSuspend (ClientPtr client)
+{
+ ScreenSaverSuspensionPtr *prev, this;
+
+ REQUEST(xScreenSaverSuspendReq);
+ REQUEST_SIZE_MATCH(xScreenSaverSuspendReq);
+
+ /* Check if this client is suspending the screensaver */
+ for (prev = &suspendingClients; (this = *prev); prev = &this->next)
+ if (this->pClient == client)
+ break;
+
+ if (this)
+ {
+ if (stuff->suspend == TRUE)
+ this->count++;
+ else if (--this->count == 0)
+ FreeResource (this->clientResource, RT_NONE);
+
+ return Success;
+ }
+
+ /* If we get to this point, this client isn't suspending the screensaver */
+ if (stuff->suspend == FALSE)
+ return Success;
+
+ /*
+ * Allocate a suspension record for the client, and stop the screensaver
+ * if it isn't already suspended by another client. We attach a resource ID
+ * to the record, so the screensaver will be reenabled and the record freed
+ * if the client disconnects without reenabling it first.
+ */
+ this = xalloc (sizeof (ScreenSaverSuspensionRec));
+
+ if (!this)
+ return BadAlloc;
+
+ this->next = NULL;
+ this->pClient = client;
+ this->count = 1;
+ this->clientResource = FakeClientID (client->index);
+
+ if (!AddResource (this->clientResource, SuspendType, (pointer) this))
+ {
+ xfree (this);
+ return BadAlloc;
+ }
+
+ *prev = this;
+ if (!screenSaverSuspended)
+ {
+ screenSaverSuspended = TRUE;
+ FreeScreenSaverTimer();
+ }
+
+ return (client->noClientException);
+}
+
+static DISPATCH_PROC((*NormalVector[])) = {
+ ProcScreenSaverQueryVersion,
+ ProcScreenSaverQueryInfo,
+ ProcScreenSaverSelectInput,
+ ProcScreenSaverSetAttributes,
+ ProcScreenSaverUnsetAttributes,
+ ProcScreenSaverSuspend,
+};
+
+#define NUM_REQUESTS ((sizeof NormalVector) / (sizeof NormalVector[0]))
+
+static int
+ProcScreenSaverDispatch (ClientPtr client)
+{
+ REQUEST(xReq);
+
+ if (stuff->data < NUM_REQUESTS)
+ return (*NormalVector[stuff->data])(client);
+ return BadRequest;
+}
+
+static int
+SProcScreenSaverQueryVersion (ClientPtr client)
+{
+ REQUEST(xScreenSaverQueryVersionReq);
+ int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xScreenSaverQueryVersionReq);
+ return ProcScreenSaverQueryVersion (client);
+}
+
+static int
+SProcScreenSaverQueryInfo (ClientPtr client)
+{
+ REQUEST(xScreenSaverQueryInfoReq);
+ int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xScreenSaverQueryInfoReq);
+ swapl (&stuff->drawable, n);
+ return ProcScreenSaverQueryInfo (client);
+}
+
+static int
+SProcScreenSaverSelectInput (ClientPtr client)
+{
+ REQUEST(xScreenSaverSelectInputReq);
+ int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xScreenSaverSelectInputReq);
+ swapl (&stuff->drawable, n);
+ swapl (&stuff->eventMask, n);
+ return ProcScreenSaverSelectInput (client);
+}
+
+static int
+SProcScreenSaverSetAttributes (ClientPtr client)
+{
+ REQUEST(xScreenSaverSetAttributesReq);
+ int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_AT_LEAST_SIZE(xScreenSaverSetAttributesReq);
+ swapl (&stuff->drawable, n);
+ swaps (&stuff->x, n);
+ swaps (&stuff->y, n);
+ swaps (&stuff->width, n);
+ swaps (&stuff->height, n);
+ swaps (&stuff->borderWidth, n);
+ swapl (&stuff->visualID, n);
+ swapl (&stuff->mask, n);
+ SwapRestL(stuff);
+ return ProcScreenSaverSetAttributes (client);
+}
+
+static int
+SProcScreenSaverUnsetAttributes (ClientPtr client)
+{
+ REQUEST(xScreenSaverUnsetAttributesReq);
+ int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xScreenSaverUnsetAttributesReq);
+ swapl (&stuff->drawable, n);
+ return ProcScreenSaverUnsetAttributes (client);
+}
+
+static int
+SProcScreenSaverSuspend (ClientPtr client)
+{
+ int n;
+ REQUEST(xScreenSaverSuspendReq);
+
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xScreenSaverSuspendReq);
+ swapl(&stuff->suspend, n);
+ return ProcScreenSaverSuspend (client);
+}
+
+static DISPATCH_PROC((*SwappedVector[])) = {
+ SProcScreenSaverQueryVersion,
+ SProcScreenSaverQueryInfo,
+ SProcScreenSaverSelectInput,
+ SProcScreenSaverSetAttributes,
+ SProcScreenSaverUnsetAttributes,
+ SProcScreenSaverSuspend,
+};
+
+static int
+SProcScreenSaverDispatch (ClientPtr client)
+{
+ REQUEST(xReq);
+
+ if (stuff->data < NUM_REQUESTS)
+ return (*SwappedVector[stuff->data])(client);
+ return BadRequest;
+}
diff --git a/xorg-server/Xext/security.c b/xorg-server/Xext/security.c index d649b99cd..da7d1b9cf 100644 --- a/xorg-server/Xext/security.c +++ b/xorg-server/Xext/security.c @@ -1,1155 +1,1156 @@ -/* - -Copyright 1996, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - -*/ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#else -#define XACE -#endif - -#include "scrnintstr.h" -#include "inputstr.h" -#include "windowstr.h" -#include "propertyst.h" -#include "colormapst.h" -#include "privates.h" -#include "registry.h" -#include "xacestr.h" -#include "securitysrv.h" -#include <X11/extensions/securproto.h> -#include "modinit.h" - -/* Extension stuff */ -static int SecurityErrorBase; /* first Security error number */ -static int SecurityEventBase; /* first Security event number */ - -RESTYPE SecurityAuthorizationResType; /* resource type for authorizations */ -static RESTYPE RTEventClient; - -static CallbackListPtr SecurityValidateGroupCallback = NULL; - -/* Private state record */ -static int stateKeyIndex; -static DevPrivateKey stateKey = &stateKeyIndex; - -/* This is what we store as client security state */ -typedef struct { - int haveState; - unsigned int trustLevel; - XID authId; -} SecurityStateRec; - -/* Extensions that untrusted clients shouldn't have access to */ -static char *SecurityTrustedExtensions[] = { - "XC-MISC", - "BIG-REQUESTS", - "XpExtension", - NULL -}; - -/* - * Access modes that untrusted clients are allowed on trusted objects. - */ -static const Mask SecurityResourceMask = - DixGetAttrAccess | DixReceiveAccess | DixListPropAccess | - DixGetPropAccess | DixListAccess; -static const Mask SecurityWindowExtraMask = DixRemoveAccess; -static const Mask SecurityRootWindowExtraMask = - DixReceiveAccess | DixSendAccess | DixAddAccess | DixRemoveAccess; -static const Mask SecurityDeviceMask = - DixGetAttrAccess | DixReceiveAccess | DixGetFocusAccess | - DixGrabAccess | DixSetAttrAccess | DixUseAccess; -static const Mask SecurityServerMask = DixGetAttrAccess | DixGrabAccess; -static const Mask SecurityClientMask = DixGetAttrAccess; - - -/* SecurityAudit - * - * Arguments: - * format is the formatting string to be used to interpret the - * remaining arguments. - * - * Returns: nothing. - * - * Side Effects: - * Writes the message to the log file if security logging is on. - */ - -static void -SecurityAudit(char *format, ...) -{ - va_list args; - - if (auditTrailLevel < SECURITY_AUDIT_LEVEL) - return; - va_start(args, format); - VAuditF(format, args); - va_end(args); -} /* SecurityAudit */ - -/* - * Performs a Security permission check. - */ -static int -SecurityDoCheck(SecurityStateRec *subj, SecurityStateRec *obj, - Mask requested, Mask allowed) -{ - if (!subj->haveState || !obj->haveState) - return Success; - if (subj->trustLevel == XSecurityClientTrusted) - return Success; - if (obj->trustLevel != XSecurityClientTrusted) - return Success; - if ((requested | allowed) == allowed) - return Success; - - return BadAccess; -} - -/* - * Labels initial server objects. - */ -static void -SecurityLabelInitial(void) -{ - SecurityStateRec *state; - - /* Do the serverClient */ - state = dixLookupPrivate(&serverClient->devPrivates, stateKey); - state->trustLevel = XSecurityClientTrusted; - state->haveState = TRUE; -} - -/* - * Looks up a request name - */ -static _X_INLINE const char * -SecurityLookupRequestName(ClientPtr client) -{ - int major = ((xReq *)client->requestBuffer)->reqType; - int minor = MinorOpcodeOfRequest(client); - return LookupRequestName(major, minor); -} - - -#define rClient(obj) (clients[CLIENT_ID((obj)->resource)]) - -/* SecurityDeleteAuthorization - * - * Arguments: - * value is the authorization to delete. - * id is its resource ID. - * - * Returns: Success. - * - * Side Effects: - * Frees everything associated with the authorization. - */ - -static int -SecurityDeleteAuthorization( - pointer value, - XID id) -{ - SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr)value; - unsigned short name_len, data_len; - char *name, *data; - int status; - int i; - OtherClientsPtr pEventClient; - - /* Remove the auth using the os layer auth manager */ - - status = AuthorizationFromID(pAuth->id, &name_len, &name, - &data_len, &data); - assert(status); - status = RemoveAuthorization(name_len, name, data_len, data); - assert(status); - (void)status; - - /* free the auth timer if there is one */ - - if (pAuth->timer) TimerFree(pAuth->timer); - - /* send revoke events */ - - while ((pEventClient = pAuth->eventClients)) - { - /* send revocation event event */ - ClientPtr client = rClient(pEventClient); - - if (!client->clientGone) - { - xSecurityAuthorizationRevokedEvent are; - are.type = SecurityEventBase + XSecurityAuthorizationRevoked; - are.sequenceNumber = client->sequence; - are.authId = pAuth->id; - WriteEventsToClient(client, 1, (xEvent *)&are); - } - FreeResource(pEventClient->resource, RT_NONE); - } - - /* kill all clients using this auth */ - - for (i = 1; i<currentMaxClients; i++) - if (clients[i]) { - SecurityStateRec *state; - state = dixLookupPrivate(&clients[i]->devPrivates, stateKey); - if (state->haveState && state->authId == pAuth->id) - CloseDownClient(clients[i]); - } - - SecurityAudit("revoked authorization ID %d\n", pAuth->id); - xfree(pAuth); - return Success; - -} /* SecurityDeleteAuthorization */ - - -/* resource delete function for RTEventClient */ -static int -SecurityDeleteAuthorizationEventClient( - pointer value, - XID id) -{ - OtherClientsPtr pEventClient, prev = NULL; - SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr)value; - - for (pEventClient = pAuth->eventClients; - pEventClient; - pEventClient = pEventClient->next) - { - if (pEventClient->resource == id) - { - if (prev) - prev->next = pEventClient->next; - else - pAuth->eventClients = pEventClient->next; - xfree(pEventClient); - return(Success); - } - prev = pEventClient; - } - /*NOTREACHED*/ - return -1; /* make compiler happy */ -} /* SecurityDeleteAuthorizationEventClient */ - - -/* SecurityComputeAuthorizationTimeout - * - * Arguments: - * pAuth is the authorization for which we are computing the timeout - * seconds is the number of seconds we want to wait - * - * Returns: - * the number of milliseconds that the auth timer should be set to - * - * Side Effects: - * Sets pAuth->secondsRemaining to any "overflow" amount of time - * that didn't fit in 32 bits worth of milliseconds - */ - -static CARD32 -SecurityComputeAuthorizationTimeout( - SecurityAuthorizationPtr pAuth, - unsigned int seconds) -{ - /* maxSecs is the number of full seconds that can be expressed in - * 32 bits worth of milliseconds - */ - CARD32 maxSecs = (CARD32)(~0) / (CARD32)MILLI_PER_SECOND; - - if (seconds > maxSecs) - { /* only come here if we want to wait more than 49 days */ - pAuth->secondsRemaining = seconds - maxSecs; - return maxSecs * MILLI_PER_SECOND; - } - else - { /* by far the common case */ - pAuth->secondsRemaining = 0; - return seconds * MILLI_PER_SECOND; - } -} /* SecurityStartAuthorizationTimer */ - -/* SecurityAuthorizationExpired - * - * This function is passed as an argument to TimerSet and gets called from - * the timer manager in the os layer when its time is up. - * - * Arguments: - * timer is the timer for this authorization. - * time is the current time. - * pval is the authorization whose time is up. - * - * Returns: - * A new time delay in milliseconds if the timer should wait some - * more, else zero. - * - * Side Effects: - * Frees the authorization resource if the timeout period is really - * over, otherwise recomputes pAuth->secondsRemaining. - */ - -static CARD32 -SecurityAuthorizationExpired( - OsTimerPtr timer, - CARD32 time, - pointer pval) -{ - SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr)pval; - - assert(pAuth->timer == timer); - - if (pAuth->secondsRemaining) - { - return SecurityComputeAuthorizationTimeout(pAuth, - pAuth->secondsRemaining); - } - else - { - FreeResource(pAuth->id, RT_NONE); - return 0; - } -} /* SecurityAuthorizationExpired */ - -/* SecurityStartAuthorizationTimer - * - * Arguments: - * pAuth is the authorization whose timer should be started. - * - * Returns: nothing. - * - * Side Effects: - * A timer is started, set to expire after the timeout period for - * this authorization. When it expires, the function - * SecurityAuthorizationExpired will be called. - */ - -static void -SecurityStartAuthorizationTimer( - SecurityAuthorizationPtr pAuth) -{ - pAuth->timer = TimerSet(pAuth->timer, 0, - SecurityComputeAuthorizationTimeout(pAuth, pAuth->timeout), - SecurityAuthorizationExpired, pAuth); -} /* SecurityStartAuthorizationTimer */ - - -/* Proc functions all take a client argument, execute the request in - * client->requestBuffer, and return a protocol error status. - */ - -static int -ProcSecurityQueryVersion( - ClientPtr client) -{ - /* REQUEST(xSecurityQueryVersionReq); */ - xSecurityQueryVersionReply rep; - - REQUEST_SIZE_MATCH(xSecurityQueryVersionReq); - rep.type = X_Reply; - rep.sequenceNumber = client->sequence; - rep.length = 0; - rep.majorVersion = SECURITY_MAJOR_VERSION; - rep.minorVersion = SECURITY_MINOR_VERSION; - if(client->swapped) - { - char n; - swaps(&rep.sequenceNumber, n); - swaps(&rep.majorVersion, n); - swaps(&rep.minorVersion, n); - } - (void)WriteToClient(client, SIZEOF(xSecurityQueryVersionReply), - (char *)&rep); - return (client->noClientException); -} /* ProcSecurityQueryVersion */ - - -static int -SecurityEventSelectForAuthorization( - SecurityAuthorizationPtr pAuth, - ClientPtr client, - Mask mask) -{ - OtherClients *pEventClient; - - for (pEventClient = pAuth->eventClients; - pEventClient; - pEventClient = pEventClient->next) - { - if (SameClient(pEventClient, client)) - { - if (mask == 0) - FreeResource(pEventClient->resource, RT_NONE); - else - pEventClient->mask = mask; - return Success; - } - } - - pEventClient = xalloc(sizeof(OtherClients)); - if (!pEventClient) - return BadAlloc; - pEventClient->mask = mask; - pEventClient->resource = FakeClientID(client->index); - pEventClient->next = pAuth->eventClients; - if (!AddResource(pEventClient->resource, RTEventClient, - (pointer)pAuth)) - { - xfree(pEventClient); - return BadAlloc; - } - pAuth->eventClients = pEventClient; - - return Success; -} /* SecurityEventSelectForAuthorization */ - - -static int -ProcSecurityGenerateAuthorization( - ClientPtr client) -{ - REQUEST(xSecurityGenerateAuthorizationReq); - int len; /* request length in CARD32s*/ - Bool removeAuth = FALSE; /* if bailout, call RemoveAuthorization? */ - SecurityAuthorizationPtr pAuth = NULL; /* auth we are creating */ - int err; /* error to return from this function */ - XID authId; /* authorization ID assigned by os layer */ - xSecurityGenerateAuthorizationReply rep; /* reply struct */ - unsigned int trustLevel; /* trust level of new auth */ - XID group; /* group of new auth */ - CARD32 timeout; /* timeout of new auth */ - CARD32 *values; /* list of supplied attributes */ - char *protoname; /* auth proto name sent in request */ - char *protodata; /* auth proto data sent in request */ - unsigned int authdata_len; /* # bytes of generated auth data */ - char *pAuthdata; /* generated auth data */ - Mask eventMask; /* what events on this auth does client want */ - - /* check request length */ - - REQUEST_AT_LEAST_SIZE(xSecurityGenerateAuthorizationReq); - len = bytes_to_int32(SIZEOF(xSecurityGenerateAuthorizationReq)); - len += bytes_to_int32(stuff->nbytesAuthProto); - len += bytes_to_int32(stuff->nbytesAuthData); - values = ((CARD32 *)stuff) + len; - len += Ones(stuff->valueMask); - if (client->req_len != len) - return BadLength; - - /* check valuemask */ - if (stuff->valueMask & ~XSecurityAllAuthorizationAttributes) - { - client->errorValue = stuff->valueMask; - return BadValue; - } - - /* check timeout */ - timeout = 60; - if (stuff->valueMask & XSecurityTimeout) - { - timeout = *values++; - } - - /* check trustLevel */ - trustLevel = XSecurityClientUntrusted; - if (stuff->valueMask & XSecurityTrustLevel) - { - trustLevel = *values++; - if (trustLevel != XSecurityClientTrusted && - trustLevel != XSecurityClientUntrusted) - { - client->errorValue = trustLevel; - return BadValue; - } - } - - /* check group */ - group = None; - if (stuff->valueMask & XSecurityGroup) - { - group = *values++; - if (SecurityValidateGroupCallback) - { - SecurityValidateGroupInfoRec vgi; - vgi.group = group; - vgi.valid = FALSE; - CallCallbacks(&SecurityValidateGroupCallback, (pointer)&vgi); - - /* if nobody said they recognized it, it's an error */ - - if (!vgi.valid) - { - client->errorValue = group; - return BadValue; - } - } - } - - /* check event mask */ - eventMask = 0; - if (stuff->valueMask & XSecurityEventMask) - { - eventMask = *values++; - if (eventMask & ~XSecurityAllEventMasks) - { - client->errorValue = eventMask; - return BadValue; - } - } - - protoname = (char *)&stuff[1]; - protodata = protoname + bytes_to_int32(stuff->nbytesAuthProto); - - /* call os layer to generate the authorization */ - - authId = GenerateAuthorization(stuff->nbytesAuthProto, protoname, - stuff->nbytesAuthData, protodata, - &authdata_len, &pAuthdata); - if ((XID) ~0L == authId) - { - err = SecurityErrorBase + XSecurityBadAuthorizationProtocol; - goto bailout; - } - - /* now that we've added the auth, remember to remove it if we have to - * abort the request for some reason (like allocation failure) - */ - removeAuth = TRUE; - - /* associate additional information with this auth ID */ - - pAuth = xalloc(sizeof(SecurityAuthorizationRec)); - if (!pAuth) - { - err = BadAlloc; - goto bailout; - } - - /* fill in the auth fields */ - - pAuth->id = authId; - pAuth->timeout = timeout; - pAuth->group = group; - pAuth->trustLevel = trustLevel; - pAuth->refcnt = 0; /* the auth was just created; nobody's using it yet */ - pAuth->secondsRemaining = 0; - pAuth->timer = NULL; - pAuth->eventClients = NULL; - - /* handle event selection */ - if (eventMask) - { - err = SecurityEventSelectForAuthorization(pAuth, client, eventMask); - if (err != Success) - goto bailout; - } - - if (!AddResource(authId, SecurityAuthorizationResType, pAuth)) - { - err = BadAlloc; - goto bailout; - } - - /* start the timer ticking */ - - if (pAuth->timeout != 0) - SecurityStartAuthorizationTimer(pAuth); - - /* tell client the auth id and data */ - - rep.type = X_Reply; - rep.length = bytes_to_int32(authdata_len); - rep.sequenceNumber = client->sequence; - rep.authId = authId; - rep.dataLength = authdata_len; - - if (client->swapped) - { - char n; - swapl(&rep.length, n); - swaps(&rep.sequenceNumber, n); - swapl(&rep.authId, n); - swaps(&rep.dataLength, n); - } - - WriteToClient(client, SIZEOF(xSecurityGenerateAuthorizationReply), - (char *)&rep); - WriteToClient(client, authdata_len, pAuthdata); - - SecurityAudit("client %d generated authorization %d trust %d timeout %d group %d events %d\n", - client->index, pAuth->id, pAuth->trustLevel, pAuth->timeout, - pAuth->group, eventMask); - - /* the request succeeded; don't call RemoveAuthorization or free pAuth */ - - removeAuth = FALSE; - pAuth = NULL; - err = client->noClientException; - -bailout: - if (removeAuth) - RemoveAuthorization(stuff->nbytesAuthProto, protoname, - authdata_len, pAuthdata); - if (pAuth) xfree(pAuth); - return err; - -} /* ProcSecurityGenerateAuthorization */ - -static int -ProcSecurityRevokeAuthorization( - ClientPtr client) -{ - REQUEST(xSecurityRevokeAuthorizationReq); - SecurityAuthorizationPtr pAuth; - int rc; - - REQUEST_SIZE_MATCH(xSecurityRevokeAuthorizationReq); - - rc = dixLookupResourceByType((pointer *)&pAuth, stuff->authId, - SecurityAuthorizationResType, client, - DixDestroyAccess); - if (rc != Success) - return (rc == BadValue) ? - SecurityErrorBase + XSecurityBadAuthorization : rc; - - FreeResource(stuff->authId, RT_NONE); - return Success; -} /* ProcSecurityRevokeAuthorization */ - - -static int -ProcSecurityDispatch( - ClientPtr client) -{ - REQUEST(xReq); - - switch (stuff->data) - { - case X_SecurityQueryVersion: - return ProcSecurityQueryVersion(client); - case X_SecurityGenerateAuthorization: - return ProcSecurityGenerateAuthorization(client); - case X_SecurityRevokeAuthorization: - return ProcSecurityRevokeAuthorization(client); - default: - return BadRequest; - } -} /* ProcSecurityDispatch */ - -static int -SProcSecurityQueryVersion( - ClientPtr client) -{ - REQUEST(xSecurityQueryVersionReq); - char n; - - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xSecurityQueryVersionReq); - swaps(&stuff->majorVersion, n); - swaps(&stuff->minorVersion,n); - return ProcSecurityQueryVersion(client); -} /* SProcSecurityQueryVersion */ - - -static int -SProcSecurityGenerateAuthorization( - ClientPtr client) -{ - REQUEST(xSecurityGenerateAuthorizationReq); - char n; - CARD32 *values; - unsigned long nvalues; - int values_offset; - - swaps(&stuff->length, n); - REQUEST_AT_LEAST_SIZE(xSecurityGenerateAuthorizationReq); - swaps(&stuff->nbytesAuthProto, n); - swaps(&stuff->nbytesAuthData, n); - swapl(&stuff->valueMask, n); - values_offset = bytes_to_int32(stuff->nbytesAuthProto) + - bytes_to_int32(stuff->nbytesAuthData); - if (values_offset > - stuff->length - bytes_to_int32(sz_xSecurityGenerateAuthorizationReq)) - return BadLength; - values = (CARD32 *)(&stuff[1]) + values_offset; - nvalues = (((CARD32 *)stuff) + stuff->length) - values; - SwapLongs(values, nvalues); - return ProcSecurityGenerateAuthorization(client); -} /* SProcSecurityGenerateAuthorization */ - - -static int -SProcSecurityRevokeAuthorization( - ClientPtr client) -{ - REQUEST(xSecurityRevokeAuthorizationReq); - char n; - - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xSecurityRevokeAuthorizationReq); - swapl(&stuff->authId, n); - return ProcSecurityRevokeAuthorization(client); -} /* SProcSecurityRevokeAuthorization */ - - -static int -SProcSecurityDispatch( - ClientPtr client) -{ - REQUEST(xReq); - - switch (stuff->data) - { - case X_SecurityQueryVersion: - return SProcSecurityQueryVersion(client); - case X_SecurityGenerateAuthorization: - return SProcSecurityGenerateAuthorization(client); - case X_SecurityRevokeAuthorization: - return SProcSecurityRevokeAuthorization(client); - default: - return BadRequest; - } -} /* SProcSecurityDispatch */ - -static void -SwapSecurityAuthorizationRevokedEvent( - xSecurityAuthorizationRevokedEvent *from, - xSecurityAuthorizationRevokedEvent *to) -{ - to->type = from->type; - to->detail = from->detail; - cpswaps(from->sequenceNumber, to->sequenceNumber); - cpswapl(from->authId, to->authId); -} - -/* SecurityCheckDeviceAccess - * - * Arguments: - * client is the client attempting to access a device. - * dev is the device being accessed. - * fromRequest is TRUE if the device access is a direct result of - * the client executing some request and FALSE if it is a - * result of the server trying to send an event (e.g. KeymapNotify) - * to the client. - * Returns: - * TRUE if the device access should be allowed, else FALSE. - * - * Side Effects: - * An audit message is generated if access is denied. - */ - -static void -SecurityDevice(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceDeviceAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - Mask requested = rec->access_mode; - Mask allowed = SecurityDeviceMask; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&serverClient->devPrivates, stateKey); - - if (rec->dev != inputInfo.keyboard) - /* this extension only supports the core keyboard */ - allowed = requested; - - if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { - SecurityAudit("Security denied client %d keyboard access on request " - "%s\n", rec->client->index, - SecurityLookupRequestName(rec->client)); - rec->status = BadAccess; - } -} - -/* SecurityResource - * - * This function gets plugged into client->CheckAccess and is called from - * SecurityLookupIDByType/Class to determine if the client can access the - * resource. - * - * Arguments: - * client is the client doing the resource access. - * id is the resource id. - * rtype is its type or class. - * access_mode represents the intended use of the resource; see - * resource.h. - * res is a pointer to the resource structure for this resource. - * - * Returns: - * If access is granted, the value of rval that was passed in, else FALSE. - * - * Side Effects: - * Disallowed resource accesses are audited. - */ - -static void -SecurityResource(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceResourceAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - int cid = CLIENT_ID(rec->id); - Mask requested = rec->access_mode; - Mask allowed = SecurityResourceMask; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&clients[cid]->devPrivates, stateKey); - - /* disable background None for untrusted windows */ - if ((requested & DixCreateAccess) && (rec->rtype == RT_WINDOW)) - if (subj->haveState && subj->trustLevel != XSecurityClientTrusted) - ((WindowPtr)rec->res)->forcedBG = TRUE; - - /* additional permissions for specific resource types */ - if (rec->rtype == RT_WINDOW) - allowed |= SecurityWindowExtraMask; - - /* special checks for server-owned resources */ - if (cid == 0) { - if (rec->rtype & RC_DRAWABLE) - /* additional operations allowed on root windows */ - allowed |= SecurityRootWindowExtraMask; - - else if (rec->rtype == RT_COLORMAP) - /* allow access to default colormaps */ - allowed = requested; - - else - /* allow read access to other server-owned resources */ - allowed |= DixReadAccess; - } - - if (SecurityDoCheck(subj, obj, requested, allowed) == Success) - return; - - SecurityAudit("Security: denied client %d access %x to resource 0x%x " - "of client %d on request %s\n", rec->client->index, - requested, rec->id, cid, - SecurityLookupRequestName(rec->client)); - rec->status = BadAccess; /* deny access */ -} - - -static void -SecurityExtension(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceExtAccessRec *rec = calldata; - SecurityStateRec *subj; - int i = 0; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - - if (subj->haveState && subj->trustLevel == XSecurityClientTrusted) - return; - - while (SecurityTrustedExtensions[i]) - if (!strcmp(SecurityTrustedExtensions[i++], rec->ext->name)) - return; - - SecurityAudit("Security: denied client %d access to extension " - "%s on request %s\n", - rec->client->index, rec->ext->name, - SecurityLookupRequestName(rec->client)); - rec->status = BadAccess; -} - -static void -SecurityServer(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceServerAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - Mask requested = rec->access_mode; - Mask allowed = SecurityServerMask; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&serverClient->devPrivates, stateKey); - - if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { - SecurityAudit("Security: denied client %d access to server " - "configuration request %s\n", rec->client->index, - SecurityLookupRequestName(rec->client)); - rec->status = BadAccess; - } -} - -static void -SecurityClient(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceClientAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - Mask requested = rec->access_mode; - Mask allowed = SecurityClientMask; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&rec->target->devPrivates, stateKey); - - if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { - SecurityAudit("Security: denied client %d access to client %d on " - "request %s\n", rec->client->index, rec->target->index, - SecurityLookupRequestName(rec->client)); - rec->status = BadAccess; - } -} - -static void -SecurityProperty(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XacePropertyAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - ATOM name = (*rec->ppProp)->propertyName; - Mask requested = rec->access_mode; - Mask allowed = SecurityResourceMask | DixReadAccess; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey); - - if (SecurityDoCheck(subj, obj, requested, allowed) != Success) { - SecurityAudit("Security: denied client %d access to property %s " - "(atom 0x%x) window 0x%x of client %d on request %s\n", - rec->client->index, NameForAtom(name), name, - rec->pWin->drawable.id, wClient(rec->pWin)->index, - SecurityLookupRequestName(rec->client)); - rec->status = BadAccess; - } -} - -static void -SecuritySend(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceSendAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - - if (rec->client) { - int i; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey); - - if (SecurityDoCheck(subj, obj, DixSendAccess, 0) == Success) - return; - - for (i = 0; i < rec->count; i++) - if (rec->events[i].u.u.type != UnmapNotify && - rec->events[i].u.u.type != ConfigureRequest && - rec->events[i].u.u.type != ClientMessage) { - - SecurityAudit("Security: denied client %d from sending event " - "of type %s to window 0x%x of client %d\n", - rec->client->index, - LookupEventName(rec->events[i].u.u.type), - rec->pWin->drawable.id, - wClient(rec->pWin)->index); - rec->status = BadAccess; - return; - } - } -} - -static void -SecurityReceive(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - XaceReceiveAccessRec *rec = calldata; - SecurityStateRec *subj, *obj; - - subj = dixLookupPrivate(&rec->client->devPrivates, stateKey); - obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey); - - if (SecurityDoCheck(subj, obj, DixReceiveAccess, 0) == Success) - return; - - SecurityAudit("Security: denied client %d from receiving an event " - "sent to window 0x%x of client %d\n", - rec->client->index, rec->pWin->drawable.id, - wClient(rec->pWin)->index); - rec->status = BadAccess; -} - -/* SecurityClientStateCallback - * - * Arguments: - * pcbl is &ClientStateCallback. - * nullata is NULL. - * calldata is a pointer to a NewClientInfoRec (include/dixstruct.h) - * which contains information about client state changes. - * - * Returns: nothing. - * - * Side Effects: - * - * If a new client is connecting, its authorization ID is copied to - * client->authID. If this is a generated authorization, its reference - * count is bumped, its timer is cancelled if it was running, and its - * trustlevel is copied to TRUSTLEVEL(client). - * - * If a client is disconnecting and the client was using a generated - * authorization, the authorization's reference count is decremented, and - * if it is now zero, the timer for this authorization is started. - */ - -static void -SecurityClientState(CallbackListPtr *pcbl, pointer unused, pointer calldata) -{ - NewClientInfoRec *pci = calldata; - SecurityStateRec *state; - SecurityAuthorizationPtr pAuth; - int rc; - - state = dixLookupPrivate(&pci->client->devPrivates, stateKey); - - switch (pci->client->clientState) { - case ClientStateInitial: - state->trustLevel = XSecurityClientTrusted; - state->authId = None; - state->haveState = TRUE; - break; - - case ClientStateRunning: - state->authId = AuthorizationIDOfClient(pci->client); - rc = dixLookupResourceByType((pointer *)&pAuth, state->authId, - SecurityAuthorizationResType, serverClient, - DixGetAttrAccess); - if (rc == Success) { - /* it is a generated authorization */ - pAuth->refcnt++; - if (pAuth->refcnt == 1 && pAuth->timer) - TimerCancel(pAuth->timer); - - state->trustLevel = pAuth->trustLevel; - } - break; - - case ClientStateGone: - case ClientStateRetained: - rc = dixLookupResourceByType((pointer *)&pAuth, state->authId, - SecurityAuthorizationResType, serverClient, - DixGetAttrAccess); - if (rc == Success) { - /* it is a generated authorization */ - pAuth->refcnt--; - if (pAuth->refcnt == 0) - SecurityStartAuthorizationTimer(pAuth); - } - break; - - default: - break; - } -} - -/* SecurityResetProc - * - * Arguments: - * extEntry is the extension information for the security extension. - * - * Returns: nothing. - * - * Side Effects: - * Performs any cleanup needed by Security at server shutdown time. - */ - -static void -SecurityResetProc( - ExtensionEntry *extEntry) -{ - /* Unregister callbacks */ - DeleteCallback(&ClientStateCallback, SecurityClientState, NULL); - - XaceDeleteCallback(XACE_EXT_DISPATCH, SecurityExtension, NULL); - XaceDeleteCallback(XACE_RESOURCE_ACCESS, SecurityResource, NULL); - XaceDeleteCallback(XACE_DEVICE_ACCESS, SecurityDevice, NULL); - XaceDeleteCallback(XACE_PROPERTY_ACCESS, SecurityProperty, NULL); - XaceDeleteCallback(XACE_SEND_ACCESS, SecuritySend, NULL); - XaceDeleteCallback(XACE_RECEIVE_ACCESS, SecurityReceive, NULL); - XaceDeleteCallback(XACE_CLIENT_ACCESS, SecurityClient, NULL); - XaceDeleteCallback(XACE_EXT_ACCESS, SecurityExtension, NULL); - XaceDeleteCallback(XACE_SERVER_ACCESS, SecurityServer, NULL); -} - - -/* SecurityExtensionInit - * - * Arguments: none. - * - * Returns: nothing. - * - * Side Effects: - * Enables the Security extension if possible. - */ - -void -SecurityExtensionInit(INITARGS) -{ - ExtensionEntry *extEntry; - int ret = TRUE; - - SecurityAuthorizationResType = - CreateNewResourceType(SecurityDeleteAuthorization); - - RTEventClient = CreateNewResourceType( - SecurityDeleteAuthorizationEventClient); - - if (!SecurityAuthorizationResType || !RTEventClient) - return; - - RTEventClient |= RC_NEVERRETAIN; - RegisterResourceName(SecurityAuthorizationResType, "SecurityAuthorization"); - RegisterResourceName(RTEventClient, "SecurityEventClient"); - - /* Allocate the private storage */ - if (!dixRequestPrivate(stateKey, sizeof(SecurityStateRec))) - FatalError("SecurityExtensionSetup: Can't allocate client private.\n"); - - /* Register callbacks */ - ret &= AddCallback(&ClientStateCallback, SecurityClientState, NULL); - - ret &= XaceRegisterCallback(XACE_EXT_DISPATCH, SecurityExtension, NULL); - ret &= XaceRegisterCallback(XACE_RESOURCE_ACCESS, SecurityResource, NULL); - ret &= XaceRegisterCallback(XACE_DEVICE_ACCESS, SecurityDevice, NULL); - ret &= XaceRegisterCallback(XACE_PROPERTY_ACCESS, SecurityProperty, NULL); - ret &= XaceRegisterCallback(XACE_SEND_ACCESS, SecuritySend, NULL); - ret &= XaceRegisterCallback(XACE_RECEIVE_ACCESS, SecurityReceive, NULL); - ret &= XaceRegisterCallback(XACE_CLIENT_ACCESS, SecurityClient, NULL); - ret &= XaceRegisterCallback(XACE_EXT_ACCESS, SecurityExtension, NULL); - ret &= XaceRegisterCallback(XACE_SERVER_ACCESS, SecurityServer, NULL); - - if (!ret) - FatalError("SecurityExtensionSetup: Failed to register callbacks\n"); - - /* Add extension to server */ - extEntry = AddExtension(SECURITY_EXTENSION_NAME, - XSecurityNumberEvents, XSecurityNumberErrors, - ProcSecurityDispatch, SProcSecurityDispatch, - SecurityResetProc, StandardMinorOpcode); - - SecurityErrorBase = extEntry->errorBase; - SecurityEventBase = extEntry->eventBase; - - EventSwapVector[SecurityEventBase + XSecurityAuthorizationRevoked] = - (EventSwapPtr)SwapSecurityAuthorizationRevokedEvent; - - /* Label objects that were created before we could register ourself */ - SecurityLabelInitial(); -} +/*
+
+Copyright 1996, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#else
+#define XACE
+#endif
+
+#include "scrnintstr.h"
+#include "inputstr.h"
+#include "windowstr.h"
+#include "propertyst.h"
+#include "colormapst.h"
+#include "privates.h"
+#include "registry.h"
+#include "xacestr.h"
+#include "securitysrv.h"
+#include <X11/extensions/securproto.h>
+#include "modinit.h"
+#include "protocol-versions.h"
+
+/* Extension stuff */
+static int SecurityErrorBase; /* first Security error number */
+static int SecurityEventBase; /* first Security event number */
+
+RESTYPE SecurityAuthorizationResType; /* resource type for authorizations */
+static RESTYPE RTEventClient;
+
+static CallbackListPtr SecurityValidateGroupCallback = NULL;
+
+/* Private state record */
+static int stateKeyIndex;
+static DevPrivateKey stateKey = &stateKeyIndex;
+
+/* This is what we store as client security state */
+typedef struct {
+ int haveState;
+ unsigned int trustLevel;
+ XID authId;
+} SecurityStateRec;
+
+/* Extensions that untrusted clients shouldn't have access to */
+static char *SecurityTrustedExtensions[] = {
+ "XC-MISC",
+ "BIG-REQUESTS",
+ "XpExtension",
+ NULL
+};
+
+/*
+ * Access modes that untrusted clients are allowed on trusted objects.
+ */
+static const Mask SecurityResourceMask =
+ DixGetAttrAccess | DixReceiveAccess | DixListPropAccess |
+ DixGetPropAccess | DixListAccess;
+static const Mask SecurityWindowExtraMask = DixRemoveAccess;
+static const Mask SecurityRootWindowExtraMask =
+ DixReceiveAccess | DixSendAccess | DixAddAccess | DixRemoveAccess;
+static const Mask SecurityDeviceMask =
+ DixGetAttrAccess | DixReceiveAccess | DixGetFocusAccess |
+ DixGrabAccess | DixSetAttrAccess | DixUseAccess;
+static const Mask SecurityServerMask = DixGetAttrAccess | DixGrabAccess;
+static const Mask SecurityClientMask = DixGetAttrAccess;
+
+
+/* SecurityAudit
+ *
+ * Arguments:
+ * format is the formatting string to be used to interpret the
+ * remaining arguments.
+ *
+ * Returns: nothing.
+ *
+ * Side Effects:
+ * Writes the message to the log file if security logging is on.
+ */
+
+static void
+SecurityAudit(char *format, ...)
+{
+ va_list args;
+
+ if (auditTrailLevel < SECURITY_AUDIT_LEVEL)
+ return;
+ va_start(args, format);
+ VAuditF(format, args);
+ va_end(args);
+} /* SecurityAudit */
+
+/*
+ * Performs a Security permission check.
+ */
+static int
+SecurityDoCheck(SecurityStateRec *subj, SecurityStateRec *obj,
+ Mask requested, Mask allowed)
+{
+ if (!subj->haveState || !obj->haveState)
+ return Success;
+ if (subj->trustLevel == XSecurityClientTrusted)
+ return Success;
+ if (obj->trustLevel != XSecurityClientTrusted)
+ return Success;
+ if ((requested | allowed) == allowed)
+ return Success;
+
+ return BadAccess;
+}
+
+/*
+ * Labels initial server objects.
+ */
+static void
+SecurityLabelInitial(void)
+{
+ SecurityStateRec *state;
+
+ /* Do the serverClient */
+ state = dixLookupPrivate(&serverClient->devPrivates, stateKey);
+ state->trustLevel = XSecurityClientTrusted;
+ state->haveState = TRUE;
+}
+
+/*
+ * Looks up a request name
+ */
+static _X_INLINE const char *
+SecurityLookupRequestName(ClientPtr client)
+{
+ int major = ((xReq *)client->requestBuffer)->reqType;
+ int minor = MinorOpcodeOfRequest(client);
+ return LookupRequestName(major, minor);
+}
+
+
+#define rClient(obj) (clients[CLIENT_ID((obj)->resource)])
+
+/* SecurityDeleteAuthorization
+ *
+ * Arguments:
+ * value is the authorization to delete.
+ * id is its resource ID.
+ *
+ * Returns: Success.
+ *
+ * Side Effects:
+ * Frees everything associated with the authorization.
+ */
+
+static int
+SecurityDeleteAuthorization(
+ pointer value,
+ XID id)
+{
+ SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr)value;
+ unsigned short name_len, data_len;
+ char *name, *data;
+ int status;
+ int i;
+ OtherClientsPtr pEventClient;
+
+ /* Remove the auth using the os layer auth manager */
+
+ status = AuthorizationFromID(pAuth->id, &name_len, &name,
+ &data_len, &data);
+ assert(status);
+ status = RemoveAuthorization(name_len, name, data_len, data);
+ assert(status);
+ (void)status;
+
+ /* free the auth timer if there is one */
+
+ if (pAuth->timer) TimerFree(pAuth->timer);
+
+ /* send revoke events */
+
+ while ((pEventClient = pAuth->eventClients))
+ {
+ /* send revocation event event */
+ ClientPtr client = rClient(pEventClient);
+
+ if (!client->clientGone)
+ {
+ xSecurityAuthorizationRevokedEvent are;
+ are.type = SecurityEventBase + XSecurityAuthorizationRevoked;
+ are.sequenceNumber = client->sequence;
+ are.authId = pAuth->id;
+ WriteEventsToClient(client, 1, (xEvent *)&are);
+ }
+ FreeResource(pEventClient->resource, RT_NONE);
+ }
+
+ /* kill all clients using this auth */
+
+ for (i = 1; i<currentMaxClients; i++)
+ if (clients[i]) {
+ SecurityStateRec *state;
+ state = dixLookupPrivate(&clients[i]->devPrivates, stateKey);
+ if (state->haveState && state->authId == pAuth->id)
+ CloseDownClient(clients[i]);
+ }
+
+ SecurityAudit("revoked authorization ID %d\n", pAuth->id);
+ xfree(pAuth);
+ return Success;
+
+} /* SecurityDeleteAuthorization */
+
+
+/* resource delete function for RTEventClient */
+static int
+SecurityDeleteAuthorizationEventClient(
+ pointer value,
+ XID id)
+{
+ OtherClientsPtr pEventClient, prev = NULL;
+ SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr)value;
+
+ for (pEventClient = pAuth->eventClients;
+ pEventClient;
+ pEventClient = pEventClient->next)
+ {
+ if (pEventClient->resource == id)
+ {
+ if (prev)
+ prev->next = pEventClient->next;
+ else
+ pAuth->eventClients = pEventClient->next;
+ xfree(pEventClient);
+ return(Success);
+ }
+ prev = pEventClient;
+ }
+ /*NOTREACHED*/
+ return -1; /* make compiler happy */
+} /* SecurityDeleteAuthorizationEventClient */
+
+
+/* SecurityComputeAuthorizationTimeout
+ *
+ * Arguments:
+ * pAuth is the authorization for which we are computing the timeout
+ * seconds is the number of seconds we want to wait
+ *
+ * Returns:
+ * the number of milliseconds that the auth timer should be set to
+ *
+ * Side Effects:
+ * Sets pAuth->secondsRemaining to any "overflow" amount of time
+ * that didn't fit in 32 bits worth of milliseconds
+ */
+
+static CARD32
+SecurityComputeAuthorizationTimeout(
+ SecurityAuthorizationPtr pAuth,
+ unsigned int seconds)
+{
+ /* maxSecs is the number of full seconds that can be expressed in
+ * 32 bits worth of milliseconds
+ */
+ CARD32 maxSecs = (CARD32)(~0) / (CARD32)MILLI_PER_SECOND;
+
+ if (seconds > maxSecs)
+ { /* only come here if we want to wait more than 49 days */
+ pAuth->secondsRemaining = seconds - maxSecs;
+ return maxSecs * MILLI_PER_SECOND;
+ }
+ else
+ { /* by far the common case */
+ pAuth->secondsRemaining = 0;
+ return seconds * MILLI_PER_SECOND;
+ }
+} /* SecurityStartAuthorizationTimer */
+
+/* SecurityAuthorizationExpired
+ *
+ * This function is passed as an argument to TimerSet and gets called from
+ * the timer manager in the os layer when its time is up.
+ *
+ * Arguments:
+ * timer is the timer for this authorization.
+ * time is the current time.
+ * pval is the authorization whose time is up.
+ *
+ * Returns:
+ * A new time delay in milliseconds if the timer should wait some
+ * more, else zero.
+ *
+ * Side Effects:
+ * Frees the authorization resource if the timeout period is really
+ * over, otherwise recomputes pAuth->secondsRemaining.
+ */
+
+static CARD32
+SecurityAuthorizationExpired(
+ OsTimerPtr timer,
+ CARD32 time,
+ pointer pval)
+{
+ SecurityAuthorizationPtr pAuth = (SecurityAuthorizationPtr)pval;
+
+ assert(pAuth->timer == timer);
+
+ if (pAuth->secondsRemaining)
+ {
+ return SecurityComputeAuthorizationTimeout(pAuth,
+ pAuth->secondsRemaining);
+ }
+ else
+ {
+ FreeResource(pAuth->id, RT_NONE);
+ return 0;
+ }
+} /* SecurityAuthorizationExpired */
+
+/* SecurityStartAuthorizationTimer
+ *
+ * Arguments:
+ * pAuth is the authorization whose timer should be started.
+ *
+ * Returns: nothing.
+ *
+ * Side Effects:
+ * A timer is started, set to expire after the timeout period for
+ * this authorization. When it expires, the function
+ * SecurityAuthorizationExpired will be called.
+ */
+
+static void
+SecurityStartAuthorizationTimer(
+ SecurityAuthorizationPtr pAuth)
+{
+ pAuth->timer = TimerSet(pAuth->timer, 0,
+ SecurityComputeAuthorizationTimeout(pAuth, pAuth->timeout),
+ SecurityAuthorizationExpired, pAuth);
+} /* SecurityStartAuthorizationTimer */
+
+
+/* Proc functions all take a client argument, execute the request in
+ * client->requestBuffer, and return a protocol error status.
+ */
+
+static int
+ProcSecurityQueryVersion(
+ ClientPtr client)
+{
+ /* REQUEST(xSecurityQueryVersionReq); */
+ xSecurityQueryVersionReply rep;
+
+ REQUEST_SIZE_MATCH(xSecurityQueryVersionReq);
+ rep.type = X_Reply;
+ rep.sequenceNumber = client->sequence;
+ rep.length = 0;
+ rep.majorVersion = SERVER_SECURITY_MAJOR_VERSION;
+ rep.minorVersion = SERVER_SECURITY_MINOR_VERSION;
+ if(client->swapped)
+ {
+ char n;
+ swaps(&rep.sequenceNumber, n);
+ swaps(&rep.majorVersion, n);
+ swaps(&rep.minorVersion, n);
+ }
+ (void)WriteToClient(client, SIZEOF(xSecurityQueryVersionReply),
+ (char *)&rep);
+ return (client->noClientException);
+} /* ProcSecurityQueryVersion */
+
+
+static int
+SecurityEventSelectForAuthorization(
+ SecurityAuthorizationPtr pAuth,
+ ClientPtr client,
+ Mask mask)
+{
+ OtherClients *pEventClient;
+
+ for (pEventClient = pAuth->eventClients;
+ pEventClient;
+ pEventClient = pEventClient->next)
+ {
+ if (SameClient(pEventClient, client))
+ {
+ if (mask == 0)
+ FreeResource(pEventClient->resource, RT_NONE);
+ else
+ pEventClient->mask = mask;
+ return Success;
+ }
+ }
+
+ pEventClient = xalloc(sizeof(OtherClients));
+ if (!pEventClient)
+ return BadAlloc;
+ pEventClient->mask = mask;
+ pEventClient->resource = FakeClientID(client->index);
+ pEventClient->next = pAuth->eventClients;
+ if (!AddResource(pEventClient->resource, RTEventClient,
+ (pointer)pAuth))
+ {
+ xfree(pEventClient);
+ return BadAlloc;
+ }
+ pAuth->eventClients = pEventClient;
+
+ return Success;
+} /* SecurityEventSelectForAuthorization */
+
+
+static int
+ProcSecurityGenerateAuthorization(
+ ClientPtr client)
+{
+ REQUEST(xSecurityGenerateAuthorizationReq);
+ int len; /* request length in CARD32s*/
+ Bool removeAuth = FALSE; /* if bailout, call RemoveAuthorization? */
+ SecurityAuthorizationPtr pAuth = NULL; /* auth we are creating */
+ int err; /* error to return from this function */
+ XID authId; /* authorization ID assigned by os layer */
+ xSecurityGenerateAuthorizationReply rep; /* reply struct */
+ unsigned int trustLevel; /* trust level of new auth */
+ XID group; /* group of new auth */
+ CARD32 timeout; /* timeout of new auth */
+ CARD32 *values; /* list of supplied attributes */
+ char *protoname; /* auth proto name sent in request */
+ char *protodata; /* auth proto data sent in request */
+ unsigned int authdata_len; /* # bytes of generated auth data */
+ char *pAuthdata; /* generated auth data */
+ Mask eventMask; /* what events on this auth does client want */
+
+ /* check request length */
+
+ REQUEST_AT_LEAST_SIZE(xSecurityGenerateAuthorizationReq);
+ len = bytes_to_int32(SIZEOF(xSecurityGenerateAuthorizationReq));
+ len += bytes_to_int32(stuff->nbytesAuthProto);
+ len += bytes_to_int32(stuff->nbytesAuthData);
+ values = ((CARD32 *)stuff) + len;
+ len += Ones(stuff->valueMask);
+ if (client->req_len != len)
+ return BadLength;
+
+ /* check valuemask */
+ if (stuff->valueMask & ~XSecurityAllAuthorizationAttributes)
+ {
+ client->errorValue = stuff->valueMask;
+ return BadValue;
+ }
+
+ /* check timeout */
+ timeout = 60;
+ if (stuff->valueMask & XSecurityTimeout)
+ {
+ timeout = *values++;
+ }
+
+ /* check trustLevel */
+ trustLevel = XSecurityClientUntrusted;
+ if (stuff->valueMask & XSecurityTrustLevel)
+ {
+ trustLevel = *values++;
+ if (trustLevel != XSecurityClientTrusted &&
+ trustLevel != XSecurityClientUntrusted)
+ {
+ client->errorValue = trustLevel;
+ return BadValue;
+ }
+ }
+
+ /* check group */
+ group = None;
+ if (stuff->valueMask & XSecurityGroup)
+ {
+ group = *values++;
+ if (SecurityValidateGroupCallback)
+ {
+ SecurityValidateGroupInfoRec vgi;
+ vgi.group = group;
+ vgi.valid = FALSE;
+ CallCallbacks(&SecurityValidateGroupCallback, (pointer)&vgi);
+
+ /* if nobody said they recognized it, it's an error */
+
+ if (!vgi.valid)
+ {
+ client->errorValue = group;
+ return BadValue;
+ }
+ }
+ }
+
+ /* check event mask */
+ eventMask = 0;
+ if (stuff->valueMask & XSecurityEventMask)
+ {
+ eventMask = *values++;
+ if (eventMask & ~XSecurityAllEventMasks)
+ {
+ client->errorValue = eventMask;
+ return BadValue;
+ }
+ }
+
+ protoname = (char *)&stuff[1];
+ protodata = protoname + bytes_to_int32(stuff->nbytesAuthProto);
+
+ /* call os layer to generate the authorization */
+
+ authId = GenerateAuthorization(stuff->nbytesAuthProto, protoname,
+ stuff->nbytesAuthData, protodata,
+ &authdata_len, &pAuthdata);
+ if ((XID) ~0L == authId)
+ {
+ err = SecurityErrorBase + XSecurityBadAuthorizationProtocol;
+ goto bailout;
+ }
+
+ /* now that we've added the auth, remember to remove it if we have to
+ * abort the request for some reason (like allocation failure)
+ */
+ removeAuth = TRUE;
+
+ /* associate additional information with this auth ID */
+
+ pAuth = xalloc(sizeof(SecurityAuthorizationRec));
+ if (!pAuth)
+ {
+ err = BadAlloc;
+ goto bailout;
+ }
+
+ /* fill in the auth fields */
+
+ pAuth->id = authId;
+ pAuth->timeout = timeout;
+ pAuth->group = group;
+ pAuth->trustLevel = trustLevel;
+ pAuth->refcnt = 0; /* the auth was just created; nobody's using it yet */
+ pAuth->secondsRemaining = 0;
+ pAuth->timer = NULL;
+ pAuth->eventClients = NULL;
+
+ /* handle event selection */
+ if (eventMask)
+ {
+ err = SecurityEventSelectForAuthorization(pAuth, client, eventMask);
+ if (err != Success)
+ goto bailout;
+ }
+
+ if (!AddResource(authId, SecurityAuthorizationResType, pAuth))
+ {
+ err = BadAlloc;
+ goto bailout;
+ }
+
+ /* start the timer ticking */
+
+ if (pAuth->timeout != 0)
+ SecurityStartAuthorizationTimer(pAuth);
+
+ /* tell client the auth id and data */
+
+ rep.type = X_Reply;
+ rep.length = bytes_to_int32(authdata_len);
+ rep.sequenceNumber = client->sequence;
+ rep.authId = authId;
+ rep.dataLength = authdata_len;
+
+ if (client->swapped)
+ {
+ char n;
+ swapl(&rep.length, n);
+ swaps(&rep.sequenceNumber, n);
+ swapl(&rep.authId, n);
+ swaps(&rep.dataLength, n);
+ }
+
+ WriteToClient(client, SIZEOF(xSecurityGenerateAuthorizationReply),
+ (char *)&rep);
+ WriteToClient(client, authdata_len, pAuthdata);
+
+ SecurityAudit("client %d generated authorization %d trust %d timeout %d group %d events %d\n",
+ client->index, pAuth->id, pAuth->trustLevel, pAuth->timeout,
+ pAuth->group, eventMask);
+
+ /* the request succeeded; don't call RemoveAuthorization or free pAuth */
+
+ removeAuth = FALSE;
+ pAuth = NULL;
+ err = client->noClientException;
+
+bailout:
+ if (removeAuth)
+ RemoveAuthorization(stuff->nbytesAuthProto, protoname,
+ authdata_len, pAuthdata);
+ if (pAuth) xfree(pAuth);
+ return err;
+
+} /* ProcSecurityGenerateAuthorization */
+
+static int
+ProcSecurityRevokeAuthorization(
+ ClientPtr client)
+{
+ REQUEST(xSecurityRevokeAuthorizationReq);
+ SecurityAuthorizationPtr pAuth;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xSecurityRevokeAuthorizationReq);
+
+ rc = dixLookupResourceByType((pointer *)&pAuth, stuff->authId,
+ SecurityAuthorizationResType, client,
+ DixDestroyAccess);
+ if (rc != Success)
+ return (rc == BadValue) ?
+ SecurityErrorBase + XSecurityBadAuthorization : rc;
+
+ FreeResource(stuff->authId, RT_NONE);
+ return Success;
+} /* ProcSecurityRevokeAuthorization */
+
+
+static int
+ProcSecurityDispatch(
+ ClientPtr client)
+{
+ REQUEST(xReq);
+
+ switch (stuff->data)
+ {
+ case X_SecurityQueryVersion:
+ return ProcSecurityQueryVersion(client);
+ case X_SecurityGenerateAuthorization:
+ return ProcSecurityGenerateAuthorization(client);
+ case X_SecurityRevokeAuthorization:
+ return ProcSecurityRevokeAuthorization(client);
+ default:
+ return BadRequest;
+ }
+} /* ProcSecurityDispatch */
+
+static int
+SProcSecurityQueryVersion(
+ ClientPtr client)
+{
+ REQUEST(xSecurityQueryVersionReq);
+ char n;
+
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xSecurityQueryVersionReq);
+ swaps(&stuff->majorVersion, n);
+ swaps(&stuff->minorVersion,n);
+ return ProcSecurityQueryVersion(client);
+} /* SProcSecurityQueryVersion */
+
+
+static int
+SProcSecurityGenerateAuthorization(
+ ClientPtr client)
+{
+ REQUEST(xSecurityGenerateAuthorizationReq);
+ char n;
+ CARD32 *values;
+ unsigned long nvalues;
+ int values_offset;
+
+ swaps(&stuff->length, n);
+ REQUEST_AT_LEAST_SIZE(xSecurityGenerateAuthorizationReq);
+ swaps(&stuff->nbytesAuthProto, n);
+ swaps(&stuff->nbytesAuthData, n);
+ swapl(&stuff->valueMask, n);
+ values_offset = bytes_to_int32(stuff->nbytesAuthProto) +
+ bytes_to_int32(stuff->nbytesAuthData);
+ if (values_offset >
+ stuff->length - bytes_to_int32(sz_xSecurityGenerateAuthorizationReq))
+ return BadLength;
+ values = (CARD32 *)(&stuff[1]) + values_offset;
+ nvalues = (((CARD32 *)stuff) + stuff->length) - values;
+ SwapLongs(values, nvalues);
+ return ProcSecurityGenerateAuthorization(client);
+} /* SProcSecurityGenerateAuthorization */
+
+
+static int
+SProcSecurityRevokeAuthorization(
+ ClientPtr client)
+{
+ REQUEST(xSecurityRevokeAuthorizationReq);
+ char n;
+
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xSecurityRevokeAuthorizationReq);
+ swapl(&stuff->authId, n);
+ return ProcSecurityRevokeAuthorization(client);
+} /* SProcSecurityRevokeAuthorization */
+
+
+static int
+SProcSecurityDispatch(
+ ClientPtr client)
+{
+ REQUEST(xReq);
+
+ switch (stuff->data)
+ {
+ case X_SecurityQueryVersion:
+ return SProcSecurityQueryVersion(client);
+ case X_SecurityGenerateAuthorization:
+ return SProcSecurityGenerateAuthorization(client);
+ case X_SecurityRevokeAuthorization:
+ return SProcSecurityRevokeAuthorization(client);
+ default:
+ return BadRequest;
+ }
+} /* SProcSecurityDispatch */
+
+static void
+SwapSecurityAuthorizationRevokedEvent(
+ xSecurityAuthorizationRevokedEvent *from,
+ xSecurityAuthorizationRevokedEvent *to)
+{
+ to->type = from->type;
+ to->detail = from->detail;
+ cpswaps(from->sequenceNumber, to->sequenceNumber);
+ cpswapl(from->authId, to->authId);
+}
+
+/* SecurityCheckDeviceAccess
+ *
+ * Arguments:
+ * client is the client attempting to access a device.
+ * dev is the device being accessed.
+ * fromRequest is TRUE if the device access is a direct result of
+ * the client executing some request and FALSE if it is a
+ * result of the server trying to send an event (e.g. KeymapNotify)
+ * to the client.
+ * Returns:
+ * TRUE if the device access should be allowed, else FALSE.
+ *
+ * Side Effects:
+ * An audit message is generated if access is denied.
+ */
+
+static void
+SecurityDevice(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceDeviceAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+ Mask requested = rec->access_mode;
+ Mask allowed = SecurityDeviceMask;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&serverClient->devPrivates, stateKey);
+
+ if (rec->dev != inputInfo.keyboard)
+ /* this extension only supports the core keyboard */
+ allowed = requested;
+
+ if (SecurityDoCheck(subj, obj, requested, allowed) != Success) {
+ SecurityAudit("Security denied client %d keyboard access on request "
+ "%s\n", rec->client->index,
+ SecurityLookupRequestName(rec->client));
+ rec->status = BadAccess;
+ }
+}
+
+/* SecurityResource
+ *
+ * This function gets plugged into client->CheckAccess and is called from
+ * SecurityLookupIDByType/Class to determine if the client can access the
+ * resource.
+ *
+ * Arguments:
+ * client is the client doing the resource access.
+ * id is the resource id.
+ * rtype is its type or class.
+ * access_mode represents the intended use of the resource; see
+ * resource.h.
+ * res is a pointer to the resource structure for this resource.
+ *
+ * Returns:
+ * If access is granted, the value of rval that was passed in, else FALSE.
+ *
+ * Side Effects:
+ * Disallowed resource accesses are audited.
+ */
+
+static void
+SecurityResource(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceResourceAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+ int cid = CLIENT_ID(rec->id);
+ Mask requested = rec->access_mode;
+ Mask allowed = SecurityResourceMask;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&clients[cid]->devPrivates, stateKey);
+
+ /* disable background None for untrusted windows */
+ if ((requested & DixCreateAccess) && (rec->rtype == RT_WINDOW))
+ if (subj->haveState && subj->trustLevel != XSecurityClientTrusted)
+ ((WindowPtr)rec->res)->forcedBG = TRUE;
+
+ /* additional permissions for specific resource types */
+ if (rec->rtype == RT_WINDOW)
+ allowed |= SecurityWindowExtraMask;
+
+ /* special checks for server-owned resources */
+ if (cid == 0) {
+ if (rec->rtype & RC_DRAWABLE)
+ /* additional operations allowed on root windows */
+ allowed |= SecurityRootWindowExtraMask;
+
+ else if (rec->rtype == RT_COLORMAP)
+ /* allow access to default colormaps */
+ allowed = requested;
+
+ else
+ /* allow read access to other server-owned resources */
+ allowed |= DixReadAccess;
+ }
+
+ if (SecurityDoCheck(subj, obj, requested, allowed) == Success)
+ return;
+
+ SecurityAudit("Security: denied client %d access %x to resource 0x%x "
+ "of client %d on request %s\n", rec->client->index,
+ requested, rec->id, cid,
+ SecurityLookupRequestName(rec->client));
+ rec->status = BadAccess; /* deny access */
+}
+
+
+static void
+SecurityExtension(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceExtAccessRec *rec = calldata;
+ SecurityStateRec *subj;
+ int i = 0;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+
+ if (subj->haveState && subj->trustLevel == XSecurityClientTrusted)
+ return;
+
+ while (SecurityTrustedExtensions[i])
+ if (!strcmp(SecurityTrustedExtensions[i++], rec->ext->name))
+ return;
+
+ SecurityAudit("Security: denied client %d access to extension "
+ "%s on request %s\n",
+ rec->client->index, rec->ext->name,
+ SecurityLookupRequestName(rec->client));
+ rec->status = BadAccess;
+}
+
+static void
+SecurityServer(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceServerAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+ Mask requested = rec->access_mode;
+ Mask allowed = SecurityServerMask;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&serverClient->devPrivates, stateKey);
+
+ if (SecurityDoCheck(subj, obj, requested, allowed) != Success) {
+ SecurityAudit("Security: denied client %d access to server "
+ "configuration request %s\n", rec->client->index,
+ SecurityLookupRequestName(rec->client));
+ rec->status = BadAccess;
+ }
+}
+
+static void
+SecurityClient(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceClientAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+ Mask requested = rec->access_mode;
+ Mask allowed = SecurityClientMask;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&rec->target->devPrivates, stateKey);
+
+ if (SecurityDoCheck(subj, obj, requested, allowed) != Success) {
+ SecurityAudit("Security: denied client %d access to client %d on "
+ "request %s\n", rec->client->index, rec->target->index,
+ SecurityLookupRequestName(rec->client));
+ rec->status = BadAccess;
+ }
+}
+
+static void
+SecurityProperty(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XacePropertyAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+ ATOM name = (*rec->ppProp)->propertyName;
+ Mask requested = rec->access_mode;
+ Mask allowed = SecurityResourceMask | DixReadAccess;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey);
+
+ if (SecurityDoCheck(subj, obj, requested, allowed) != Success) {
+ SecurityAudit("Security: denied client %d access to property %s "
+ "(atom 0x%x) window 0x%x of client %d on request %s\n",
+ rec->client->index, NameForAtom(name), name,
+ rec->pWin->drawable.id, wClient(rec->pWin)->index,
+ SecurityLookupRequestName(rec->client));
+ rec->status = BadAccess;
+ }
+}
+
+static void
+SecuritySend(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceSendAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+
+ if (rec->client) {
+ int i;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey);
+
+ if (SecurityDoCheck(subj, obj, DixSendAccess, 0) == Success)
+ return;
+
+ for (i = 0; i < rec->count; i++)
+ if (rec->events[i].u.u.type != UnmapNotify &&
+ rec->events[i].u.u.type != ConfigureRequest &&
+ rec->events[i].u.u.type != ClientMessage) {
+
+ SecurityAudit("Security: denied client %d from sending event "
+ "of type %s to window 0x%x of client %d\n",
+ rec->client->index,
+ LookupEventName(rec->events[i].u.u.type),
+ rec->pWin->drawable.id,
+ wClient(rec->pWin)->index);
+ rec->status = BadAccess;
+ return;
+ }
+ }
+}
+
+static void
+SecurityReceive(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ XaceReceiveAccessRec *rec = calldata;
+ SecurityStateRec *subj, *obj;
+
+ subj = dixLookupPrivate(&rec->client->devPrivates, stateKey);
+ obj = dixLookupPrivate(&wClient(rec->pWin)->devPrivates, stateKey);
+
+ if (SecurityDoCheck(subj, obj, DixReceiveAccess, 0) == Success)
+ return;
+
+ SecurityAudit("Security: denied client %d from receiving an event "
+ "sent to window 0x%x of client %d\n",
+ rec->client->index, rec->pWin->drawable.id,
+ wClient(rec->pWin)->index);
+ rec->status = BadAccess;
+}
+
+/* SecurityClientStateCallback
+ *
+ * Arguments:
+ * pcbl is &ClientStateCallback.
+ * nullata is NULL.
+ * calldata is a pointer to a NewClientInfoRec (include/dixstruct.h)
+ * which contains information about client state changes.
+ *
+ * Returns: nothing.
+ *
+ * Side Effects:
+ *
+ * If a new client is connecting, its authorization ID is copied to
+ * client->authID. If this is a generated authorization, its reference
+ * count is bumped, its timer is cancelled if it was running, and its
+ * trustlevel is copied to TRUSTLEVEL(client).
+ *
+ * If a client is disconnecting and the client was using a generated
+ * authorization, the authorization's reference count is decremented, and
+ * if it is now zero, the timer for this authorization is started.
+ */
+
+static void
+SecurityClientState(CallbackListPtr *pcbl, pointer unused, pointer calldata)
+{
+ NewClientInfoRec *pci = calldata;
+ SecurityStateRec *state;
+ SecurityAuthorizationPtr pAuth;
+ int rc;
+
+ state = dixLookupPrivate(&pci->client->devPrivates, stateKey);
+
+ switch (pci->client->clientState) {
+ case ClientStateInitial:
+ state->trustLevel = XSecurityClientTrusted;
+ state->authId = None;
+ state->haveState = TRUE;
+ break;
+
+ case ClientStateRunning:
+ state->authId = AuthorizationIDOfClient(pci->client);
+ rc = dixLookupResourceByType((pointer *)&pAuth, state->authId,
+ SecurityAuthorizationResType, serverClient,
+ DixGetAttrAccess);
+ if (rc == Success) {
+ /* it is a generated authorization */
+ pAuth->refcnt++;
+ if (pAuth->refcnt == 1 && pAuth->timer)
+ TimerCancel(pAuth->timer);
+
+ state->trustLevel = pAuth->trustLevel;
+ }
+ break;
+
+ case ClientStateGone:
+ case ClientStateRetained:
+ rc = dixLookupResourceByType((pointer *)&pAuth, state->authId,
+ SecurityAuthorizationResType, serverClient,
+ DixGetAttrAccess);
+ if (rc == Success) {
+ /* it is a generated authorization */
+ pAuth->refcnt--;
+ if (pAuth->refcnt == 0)
+ SecurityStartAuthorizationTimer(pAuth);
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/* SecurityResetProc
+ *
+ * Arguments:
+ * extEntry is the extension information for the security extension.
+ *
+ * Returns: nothing.
+ *
+ * Side Effects:
+ * Performs any cleanup needed by Security at server shutdown time.
+ */
+
+static void
+SecurityResetProc(
+ ExtensionEntry *extEntry)
+{
+ /* Unregister callbacks */
+ DeleteCallback(&ClientStateCallback, SecurityClientState, NULL);
+
+ XaceDeleteCallback(XACE_EXT_DISPATCH, SecurityExtension, NULL);
+ XaceDeleteCallback(XACE_RESOURCE_ACCESS, SecurityResource, NULL);
+ XaceDeleteCallback(XACE_DEVICE_ACCESS, SecurityDevice, NULL);
+ XaceDeleteCallback(XACE_PROPERTY_ACCESS, SecurityProperty, NULL);
+ XaceDeleteCallback(XACE_SEND_ACCESS, SecuritySend, NULL);
+ XaceDeleteCallback(XACE_RECEIVE_ACCESS, SecurityReceive, NULL);
+ XaceDeleteCallback(XACE_CLIENT_ACCESS, SecurityClient, NULL);
+ XaceDeleteCallback(XACE_EXT_ACCESS, SecurityExtension, NULL);
+ XaceDeleteCallback(XACE_SERVER_ACCESS, SecurityServer, NULL);
+}
+
+
+/* SecurityExtensionInit
+ *
+ * Arguments: none.
+ *
+ * Returns: nothing.
+ *
+ * Side Effects:
+ * Enables the Security extension if possible.
+ */
+
+void
+SecurityExtensionInit(INITARGS)
+{
+ ExtensionEntry *extEntry;
+ int ret = TRUE;
+
+ SecurityAuthorizationResType =
+ CreateNewResourceType(SecurityDeleteAuthorization);
+
+ RTEventClient = CreateNewResourceType(
+ SecurityDeleteAuthorizationEventClient);
+
+ if (!SecurityAuthorizationResType || !RTEventClient)
+ return;
+
+ RTEventClient |= RC_NEVERRETAIN;
+ RegisterResourceName(SecurityAuthorizationResType, "SecurityAuthorization");
+ RegisterResourceName(RTEventClient, "SecurityEventClient");
+
+ /* Allocate the private storage */
+ if (!dixRequestPrivate(stateKey, sizeof(SecurityStateRec)))
+ FatalError("SecurityExtensionSetup: Can't allocate client private.\n");
+
+ /* Register callbacks */
+ ret &= AddCallback(&ClientStateCallback, SecurityClientState, NULL);
+
+ ret &= XaceRegisterCallback(XACE_EXT_DISPATCH, SecurityExtension, NULL);
+ ret &= XaceRegisterCallback(XACE_RESOURCE_ACCESS, SecurityResource, NULL);
+ ret &= XaceRegisterCallback(XACE_DEVICE_ACCESS, SecurityDevice, NULL);
+ ret &= XaceRegisterCallback(XACE_PROPERTY_ACCESS, SecurityProperty, NULL);
+ ret &= XaceRegisterCallback(XACE_SEND_ACCESS, SecuritySend, NULL);
+ ret &= XaceRegisterCallback(XACE_RECEIVE_ACCESS, SecurityReceive, NULL);
+ ret &= XaceRegisterCallback(XACE_CLIENT_ACCESS, SecurityClient, NULL);
+ ret &= XaceRegisterCallback(XACE_EXT_ACCESS, SecurityExtension, NULL);
+ ret &= XaceRegisterCallback(XACE_SERVER_ACCESS, SecurityServer, NULL);
+
+ if (!ret)
+ FatalError("SecurityExtensionSetup: Failed to register callbacks\n");
+
+ /* Add extension to server */
+ extEntry = AddExtension(SECURITY_EXTENSION_NAME,
+ XSecurityNumberEvents, XSecurityNumberErrors,
+ ProcSecurityDispatch, SProcSecurityDispatch,
+ SecurityResetProc, StandardMinorOpcode);
+
+ SecurityErrorBase = extEntry->errorBase;
+ SecurityEventBase = extEntry->eventBase;
+
+ EventSwapVector[SecurityEventBase + XSecurityAuthorizationRevoked] =
+ (EventSwapPtr)SwapSecurityAuthorizationRevokedEvent;
+
+ /* Label objects that were created before we could register ourself */
+ SecurityLabelInitial();
+}
diff --git a/xorg-server/Xext/securitysrv.h b/xorg-server/Xext/securitysrv.h index f4f3e32ae..3d3894a18 100644 --- a/xorg-server/Xext/securitysrv.h +++ b/xorg-server/Xext/securitysrv.h @@ -40,7 +40,7 @@ from The Open Group. # define NEED_UNDEF_Display #endif -#include <X11/extensions/security.h> +#include <X11/extensions/secur.h> #ifdef NEED_UNDEF_Status # undef Status diff --git a/xorg-server/Xext/shape.c b/xorg-server/Xext/shape.c index 0264d1c41..27f7ae25e 100644 --- a/xorg-server/Xext/shape.c +++ b/xorg-server/Xext/shape.c @@ -1,1294 +1,1295 @@ -/************************************************************ - -Copyright 1989, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - -********************************************************/ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#else -#define SHAPE -#endif - -#include <stdlib.h> - -#include <X11/X.h> -#include <X11/Xproto.h> -#include "misc.h" -#include "os.h" -#include "windowstr.h" -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "extnsionst.h" -#include "dixstruct.h" -#include "resource.h" -#include "opaque.h" -#include <X11/extensions/shapeproto.h> -#include "regionstr.h" -#include "gcstruct.h" -#include "modinit.h" - -typedef RegionPtr (*CreateDftPtr)( - WindowPtr /* pWin */ - ); - -static int ShapeFreeClient( - pointer /* data */, - XID /* id */ - ); -static int ShapeFreeEvents( - pointer /* data */, - XID /* id */ - ); -static void SShapeNotifyEvent( - xShapeNotifyEvent * /* from */, - xShapeNotifyEvent * /* to */ - ); - -/* SendShapeNotify, CreateBoundingShape and CreateClipShape are used - * externally by the Xfixes extension and are now defined in window.h - */ - -static DISPATCH_PROC(ProcShapeCombine); -static DISPATCH_PROC(ProcShapeDispatch); -static DISPATCH_PROC(ProcShapeGetRectangles); -static DISPATCH_PROC(ProcShapeInputSelected); -static DISPATCH_PROC(ProcShapeMask); -static DISPATCH_PROC(ProcShapeOffset); -static DISPATCH_PROC(ProcShapeQueryExtents); -static DISPATCH_PROC(ProcShapeQueryVersion); -static DISPATCH_PROC(ProcShapeRectangles); -static DISPATCH_PROC(ProcShapeSelectInput); -static DISPATCH_PROC(SProcShapeCombine); -static DISPATCH_PROC(SProcShapeDispatch); -static DISPATCH_PROC(SProcShapeGetRectangles); -static DISPATCH_PROC(SProcShapeInputSelected); -static DISPATCH_PROC(SProcShapeMask); -static DISPATCH_PROC(SProcShapeOffset); -static DISPATCH_PROC(SProcShapeQueryExtents); -static DISPATCH_PROC(SProcShapeQueryVersion); -static DISPATCH_PROC(SProcShapeRectangles); -static DISPATCH_PROC(SProcShapeSelectInput); - -#ifdef PANORAMIX -#include "panoramiX.h" -#include "panoramiXsrv.h" -#endif - -static int ShapeEventBase = 0; -static RESTYPE ClientType, ShapeEventType; /* resource types for event masks */ - -/* - * each window has a list of clients requesting - * ShapeNotify events. Each client has a resource - * for each window it selects ShapeNotify input for, - * this resource is used to delete the ShapeNotifyRec - * entry from the per-window queue. - */ - -typedef struct _ShapeEvent *ShapeEventPtr; - -typedef struct _ShapeEvent { - ShapeEventPtr next; - ClientPtr client; - WindowPtr window; - XID clientResource; -} ShapeEventRec; - -/**************** - * ShapeExtensionInit - * - * Called from InitExtensions in main() or from QueryExtension() if the - * extension is dynamically loaded. - * - ****************/ - -void -ShapeExtensionInit(void) -{ - ExtensionEntry *extEntry; - - ClientType = CreateNewResourceType(ShapeFreeClient); - ShapeEventType = CreateNewResourceType(ShapeFreeEvents); - if (ClientType && ShapeEventType && - (extEntry = AddExtension(SHAPENAME, ShapeNumberEvents, 0, - ProcShapeDispatch, SProcShapeDispatch, - NULL, StandardMinorOpcode))) - { - ShapeEventBase = extEntry->eventBase; - EventSwapVector[ShapeEventBase] = (EventSwapPtr) SShapeNotifyEvent; - } -} - -static int -RegionOperate ( - ClientPtr client, - WindowPtr pWin, - int kind, - RegionPtr *destRgnp, - RegionPtr srcRgn, - int op, - int xoff, int yoff, - CreateDftPtr create) -{ - ScreenPtr pScreen = pWin->drawable.pScreen; - - if (srcRgn && (xoff || yoff)) - REGION_TRANSLATE(pScreen, srcRgn, xoff, yoff); - if (!pWin->parent) - { - if (srcRgn) - REGION_DESTROY(pScreen, srcRgn); - return Success; - } - - /* May/30/2001: - * The shape.PS specs say if src is None, existing shape is to be - * removed (and so the op-code has no meaning in such removal); - * see shape.PS, page 3, ShapeMask. - */ - if (srcRgn == NULL) { - if (*destRgnp != NULL) { - REGION_DESTROY (pScreen, *destRgnp); - *destRgnp = 0; - /* go on to remove shape and generate ShapeNotify */ - } - else { - /* May/30/2001: - * The target currently has no shape in effect, so nothing to - * do here. The specs say that ShapeNotify is generated whenever - * the client region is "modified"; since no modification is done - * here, we do not generate that event. The specs does not say - * "it is an error to request removal when there is no shape in - * effect", so we return good status. - */ - return Success; - } - } - else switch (op) { - case ShapeSet: - if (*destRgnp) - REGION_DESTROY(pScreen, *destRgnp); - *destRgnp = srcRgn; - srcRgn = 0; - break; - case ShapeUnion: - if (*destRgnp) - REGION_UNION(pScreen, *destRgnp, *destRgnp, srcRgn); - break; - case ShapeIntersect: - if (*destRgnp) - REGION_INTERSECT(pScreen, *destRgnp, *destRgnp, srcRgn); - else { - *destRgnp = srcRgn; - srcRgn = 0; - } - break; - case ShapeSubtract: - if (!*destRgnp) - *destRgnp = (*create)(pWin); - REGION_SUBTRACT(pScreen, *destRgnp, *destRgnp, srcRgn); - break; - case ShapeInvert: - if (!*destRgnp) - *destRgnp = REGION_CREATE(pScreen, (BoxPtr) 0, 0); - else - REGION_SUBTRACT(pScreen, *destRgnp, srcRgn, *destRgnp); - break; - default: - client->errorValue = op; - return BadValue; - } - if (srcRgn) - REGION_DESTROY(pScreen, srcRgn); - (*pScreen->SetShape) (pWin); - SendShapeNotify (pWin, kind); - return Success; -} - -RegionPtr -CreateBoundingShape (WindowPtr pWin) -{ - BoxRec extents; - - extents.x1 = -wBorderWidth (pWin); - extents.y1 = -wBorderWidth (pWin); - extents.x2 = pWin->drawable.width + wBorderWidth (pWin); - extents.y2 = pWin->drawable.height + wBorderWidth (pWin); - return REGION_CREATE(pWin->drawable.pScreen, &extents, 1); -} - -RegionPtr -CreateClipShape (WindowPtr pWin) -{ - BoxRec extents; - - extents.x1 = 0; - extents.y1 = 0; - extents.x2 = pWin->drawable.width; - extents.y2 = pWin->drawable.height; - return REGION_CREATE(pWin->drawable.pScreen, &extents, 1); -} - -static int -ProcShapeQueryVersion (ClientPtr client) -{ - xShapeQueryVersionReply rep; - int n; - - REQUEST_SIZE_MATCH (xShapeQueryVersionReq); - memset(&rep, 0, sizeof(xShapeQueryVersionReply)); - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.majorVersion = SHAPE_MAJOR_VERSION; - rep.minorVersion = SHAPE_MINOR_VERSION; - if (client->swapped) { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swaps(&rep.majorVersion, n); - swaps(&rep.minorVersion, n); - } - WriteToClient(client, sizeof (xShapeQueryVersionReply), (char *)&rep); - return (client->noClientException); -} - -/***************** - * ProcShapeRectangles - * - *****************/ - -static int -ProcShapeRectangles (ClientPtr client) -{ - WindowPtr pWin; - ScreenPtr pScreen; - REQUEST(xShapeRectanglesReq); - xRectangle *prects; - int nrects, ctype, rc; - RegionPtr srcRgn; - RegionPtr *destRgn; - CreateDftPtr createDefault; - - REQUEST_AT_LEAST_SIZE (xShapeRectanglesReq); - UpdateCurrentTime(); - rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess); - if (rc != Success) - return rc; - switch (stuff->destKind) { - case ShapeBounding: - createDefault = CreateBoundingShape; - break; - case ShapeClip: - createDefault = CreateClipShape; - break; - case ShapeInput: - createDefault = CreateBoundingShape; - break; - default: - client->errorValue = stuff->destKind; - return BadValue; - } - if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) && - (stuff->ordering != YXSorted) && (stuff->ordering != YXBanded)) - { - client->errorValue = stuff->ordering; - return BadValue; - } - pScreen = pWin->drawable.pScreen; - nrects = ((stuff->length << 2) - sizeof(xShapeRectanglesReq)); - if (nrects & 4) - return BadLength; - nrects >>= 3; - prects = (xRectangle *) &stuff[1]; - ctype = VerifyRectOrder(nrects, prects, (int)stuff->ordering); - if (ctype < 0) - return BadMatch; - srcRgn = RECTS_TO_REGION(pScreen, nrects, prects, ctype); - - if (!pWin->optional) - MakeWindowOptional (pWin); - switch (stuff->destKind) { - case ShapeBounding: - destRgn = &pWin->optional->boundingShape; - break; - case ShapeClip: - destRgn = &pWin->optional->clipShape; - break; - case ShapeInput: - destRgn = &pWin->optional->inputShape; - break; - default: - return BadValue; - } - - return RegionOperate (client, pWin, (int)stuff->destKind, - destRgn, srcRgn, (int)stuff->op, - stuff->xOff, stuff->yOff, createDefault); -} - -#ifdef PANORAMIX -static int -ProcPanoramiXShapeRectangles( - ClientPtr client) -{ - REQUEST(xShapeRectanglesReq); - PanoramiXRes *win; - int j, result; - - REQUEST_AT_LEAST_SIZE (xShapeRectanglesReq); - - result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW, - client, DixWriteAccess); - if (result != Success) - return (result == BadValue) ? BadWindow : result; - - FOR_NSCREENS(j) { - stuff->dest = win->info[j].id; - result = ProcShapeRectangles (client); - BREAK_IF(result != Success); - } - return (result); -} -#endif - - -/************** - * ProcShapeMask - **************/ - - -static int -ProcShapeMask (ClientPtr client) -{ - WindowPtr pWin; - ScreenPtr pScreen; - REQUEST(xShapeMaskReq); - RegionPtr srcRgn; - RegionPtr *destRgn; - PixmapPtr pPixmap; - CreateDftPtr createDefault; - int rc; - - REQUEST_SIZE_MATCH (xShapeMaskReq); - UpdateCurrentTime(); - rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess); - if (rc != Success) - return rc; - switch (stuff->destKind) { - case ShapeBounding: - createDefault = CreateBoundingShape; - break; - case ShapeClip: - createDefault = CreateClipShape; - break; - case ShapeInput: - createDefault = CreateBoundingShape; - break; - default: - client->errorValue = stuff->destKind; - return BadValue; - } - pScreen = pWin->drawable.pScreen; - if (stuff->src == None) - srcRgn = 0; - else { - rc = dixLookupResourceByType((pointer *)&pPixmap, stuff->src, RT_PIXMAP, - client, DixReadAccess); - if (rc != Success) - return (rc == BadValue) ? BadPixmap : rc; - if (pPixmap->drawable.pScreen != pScreen || - pPixmap->drawable.depth != 1) - return BadMatch; - srcRgn = BITMAP_TO_REGION(pScreen, pPixmap); - if (!srcRgn) - return BadAlloc; - } - - if (!pWin->optional) - MakeWindowOptional (pWin); - switch (stuff->destKind) { - case ShapeBounding: - destRgn = &pWin->optional->boundingShape; - break; - case ShapeClip: - destRgn = &pWin->optional->clipShape; - break; - case ShapeInput: - destRgn = &pWin->optional->inputShape; - break; - default: - return BadValue; - } - - return RegionOperate (client, pWin, (int)stuff->destKind, - destRgn, srcRgn, (int)stuff->op, - stuff->xOff, stuff->yOff, createDefault); -} - -#ifdef PANORAMIX -static int -ProcPanoramiXShapeMask( - ClientPtr client) -{ - REQUEST(xShapeMaskReq); - PanoramiXRes *win, *pmap; - int j, result; - - REQUEST_SIZE_MATCH (xShapeMaskReq); - - result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW, - client, DixWriteAccess); - if (result != Success) - return (result == BadValue) ? BadWindow : result; - - if(stuff->src != None) { - result = dixLookupResourceByType((pointer *)&pmap, stuff->src, - XRT_PIXMAP, client, DixReadAccess); - if (result != Success) - return (result == BadValue) ? BadPixmap : result; - } else - pmap = NULL; - - FOR_NSCREENS(j) { - stuff->dest = win->info[j].id; - if(pmap) - stuff->src = pmap->info[j].id; - result = ProcShapeMask (client); - BREAK_IF(result != Success); - } - return (result); -} -#endif - - -/************ - * ProcShapeCombine - ************/ - -static int -ProcShapeCombine (ClientPtr client) -{ - WindowPtr pSrcWin, pDestWin; - ScreenPtr pScreen; - REQUEST(xShapeCombineReq); - RegionPtr srcRgn; - RegionPtr *destRgn; - CreateDftPtr createDefault; - CreateDftPtr createSrc; - RegionPtr tmp; - int rc; - - REQUEST_SIZE_MATCH (xShapeCombineReq); - UpdateCurrentTime(); - rc = dixLookupWindow(&pDestWin, stuff->dest, client, DixSetAttrAccess); - if (rc != Success) - return rc; - if (!pDestWin->optional) - MakeWindowOptional (pDestWin); - switch (stuff->destKind) { - case ShapeBounding: - createDefault = CreateBoundingShape; - break; - case ShapeClip: - createDefault = CreateClipShape; - break; - case ShapeInput: - createDefault = CreateBoundingShape; - break; - default: - client->errorValue = stuff->destKind; - return BadValue; - } - pScreen = pDestWin->drawable.pScreen; - - rc = dixLookupWindow(&pSrcWin, stuff->src, client, DixGetAttrAccess); - if (rc != Success) - return rc; - switch (stuff->srcKind) { - case ShapeBounding: - srcRgn = wBoundingShape (pSrcWin); - createSrc = CreateBoundingShape; - break; - case ShapeClip: - srcRgn = wClipShape (pSrcWin); - createSrc = CreateClipShape; - break; - case ShapeInput: - srcRgn = wInputShape (pSrcWin); - createSrc = CreateBoundingShape; - break; - default: - client->errorValue = stuff->srcKind; - return BadValue; - } - if (pSrcWin->drawable.pScreen != pScreen) - { - return BadMatch; - } - - if (srcRgn) { - tmp = REGION_CREATE(pScreen, (BoxPtr) 0, 0); - REGION_COPY(pScreen, tmp, srcRgn); - srcRgn = tmp; - } else - srcRgn = (*createSrc) (pSrcWin); - - if (!pDestWin->optional) - MakeWindowOptional (pDestWin); - switch (stuff->destKind) { - case ShapeBounding: - destRgn = &pDestWin->optional->boundingShape; - break; - case ShapeClip: - destRgn = &pDestWin->optional->clipShape; - break; - case ShapeInput: - destRgn = &pDestWin->optional->inputShape; - break; - default: - return BadValue; - } - - return RegionOperate (client, pDestWin, (int)stuff->destKind, - destRgn, srcRgn, (int)stuff->op, - stuff->xOff, stuff->yOff, createDefault); -} - - -#ifdef PANORAMIX -static int -ProcPanoramiXShapeCombine( - ClientPtr client) -{ - REQUEST(xShapeCombineReq); - PanoramiXRes *win, *win2; - int j, result; - - REQUEST_AT_LEAST_SIZE (xShapeCombineReq); - - result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW, - client, DixWriteAccess); - if (result != Success) - return (result == BadValue) ? BadWindow : result; - - result = dixLookupResourceByType((pointer *)&win2, stuff->src, XRT_WINDOW, - client, DixReadAccess); - if (result != Success) - return (result == BadValue) ? BadWindow : result; - - FOR_NSCREENS(j) { - stuff->dest = win->info[j].id; - stuff->src = win2->info[j].id; - result = ProcShapeCombine (client); - BREAK_IF(result != Success); - } - return (result); -} -#endif - -/************* - * ProcShapeOffset - *************/ - -static int -ProcShapeOffset (ClientPtr client) -{ - WindowPtr pWin; - ScreenPtr pScreen; - REQUEST(xShapeOffsetReq); - RegionPtr srcRgn; - int rc; - - REQUEST_SIZE_MATCH (xShapeOffsetReq); - UpdateCurrentTime(); - rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess); - if (rc != Success) - return rc; - switch (stuff->destKind) { - case ShapeBounding: - srcRgn = wBoundingShape (pWin); - break; - case ShapeClip: - srcRgn = wClipShape(pWin); - break; - case ShapeInput: - srcRgn = wInputShape (pWin); - break; - default: - client->errorValue = stuff->destKind; - return BadValue; - } - pScreen = pWin->drawable.pScreen; - if (srcRgn) - { - REGION_TRANSLATE(pScreen, srcRgn, stuff->xOff, stuff->yOff); - (*pScreen->SetShape) (pWin); - } - SendShapeNotify (pWin, (int)stuff->destKind); - return Success; -} - - -#ifdef PANORAMIX -static int -ProcPanoramiXShapeOffset( - ClientPtr client) -{ - REQUEST(xShapeOffsetReq); - PanoramiXRes *win; - int j, result; - - REQUEST_AT_LEAST_SIZE (xShapeOffsetReq); - - result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW, - client, DixWriteAccess); - if (result != Success) - return (result == BadValue) ? BadWindow : result; - - FOR_NSCREENS(j) { - stuff->dest = win->info[j].id; - result = ProcShapeOffset (client); - if(result != Success) break; - } - return (result); -} -#endif - - -static int -ProcShapeQueryExtents (ClientPtr client) -{ - REQUEST(xShapeQueryExtentsReq); - WindowPtr pWin; - xShapeQueryExtentsReply rep; - BoxRec extents, *pExtents; - int n, rc; - RegionPtr region; - - REQUEST_SIZE_MATCH (xShapeQueryExtentsReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); - if (rc != Success) - return rc; - memset(&rep, 0, sizeof(xShapeQueryExtentsReply)); - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.boundingShaped = (wBoundingShape(pWin) != 0); - rep.clipShaped = (wClipShape(pWin) != 0); - if ((region = wBoundingShape(pWin))) { - /* this is done in two steps because of a compiler bug on SunOS 4.1.3 */ - pExtents = REGION_EXTENTS(pWin->drawable.pScreen, region); - extents = *pExtents; - } else { - extents.x1 = -wBorderWidth (pWin); - extents.y1 = -wBorderWidth (pWin); - extents.x2 = pWin->drawable.width + wBorderWidth (pWin); - extents.y2 = pWin->drawable.height + wBorderWidth (pWin); - } - rep.xBoundingShape = extents.x1; - rep.yBoundingShape = extents.y1; - rep.widthBoundingShape = extents.x2 - extents.x1; - rep.heightBoundingShape = extents.y2 - extents.y1; - if ((region = wClipShape(pWin))) { - /* this is done in two steps because of a compiler bug on SunOS 4.1.3 */ - pExtents = REGION_EXTENTS(pWin->drawable.pScreen, region); - extents = *pExtents; - } else { - extents.x1 = 0; - extents.y1 = 0; - extents.x2 = pWin->drawable.width; - extents.y2 = pWin->drawable.height; - } - rep.xClipShape = extents.x1; - rep.yClipShape = extents.y1; - rep.widthClipShape = extents.x2 - extents.x1; - rep.heightClipShape = extents.y2 - extents.y1; - if (client->swapped) { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swaps(&rep.xBoundingShape, n); - swaps(&rep.yBoundingShape, n); - swaps(&rep.widthBoundingShape, n); - swaps(&rep.heightBoundingShape, n); - swaps(&rep.xClipShape, n); - swaps(&rep.yClipShape, n); - swaps(&rep.widthClipShape, n); - swaps(&rep.heightClipShape, n); - } - WriteToClient(client, sizeof (xShapeQueryExtentsReply), (char *)&rep); - return (client->noClientException); -} - -/*ARGSUSED*/ -static int -ShapeFreeClient (pointer data, XID id) -{ - ShapeEventPtr pShapeEvent; - WindowPtr pWin; - ShapeEventPtr *pHead, pCur, pPrev; - int rc; - - pShapeEvent = (ShapeEventPtr) data; - pWin = pShapeEvent->window; - rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id, - ShapeEventType, serverClient, DixReadAccess); - if (rc == Success) { - pPrev = 0; - for (pCur = *pHead; pCur && pCur != pShapeEvent; pCur=pCur->next) - pPrev = pCur; - if (pCur) - { - if (pPrev) - pPrev->next = pShapeEvent->next; - else - *pHead = pShapeEvent->next; - } - } - xfree ((pointer) pShapeEvent); - return 1; -} - -/*ARGSUSED*/ -static int -ShapeFreeEvents (pointer data, XID id) -{ - ShapeEventPtr *pHead, pCur, pNext; - - pHead = (ShapeEventPtr *) data; - for (pCur = *pHead; pCur; pCur = pNext) { - pNext = pCur->next; - FreeResource (pCur->clientResource, ClientType); - xfree ((pointer) pCur); - } - xfree ((pointer) pHead); - return 1; -} - -static int -ProcShapeSelectInput (ClientPtr client) -{ - REQUEST(xShapeSelectInputReq); - WindowPtr pWin; - ShapeEventPtr pShapeEvent, pNewShapeEvent, *pHead; - XID clientResource; - int rc; - - REQUEST_SIZE_MATCH (xShapeSelectInputReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixReceiveAccess); - if (rc != Success) - return rc; - rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id, - ShapeEventType, client, DixWriteAccess); - if (rc != Success && rc != BadValue) - return rc; - - switch (stuff->enable) { - case xTrue: - if (pHead) { - - /* check for existing entry. */ - for (pShapeEvent = *pHead; - pShapeEvent; - pShapeEvent = pShapeEvent->next) - { - if (pShapeEvent->client == client) - return Success; - } - } - - /* build the entry */ - pNewShapeEvent = xalloc (sizeof (ShapeEventRec)); - if (!pNewShapeEvent) - return BadAlloc; - pNewShapeEvent->next = 0; - pNewShapeEvent->client = client; - pNewShapeEvent->window = pWin; - /* - * add a resource that will be deleted when - * the client goes away - */ - clientResource = FakeClientID (client->index); - pNewShapeEvent->clientResource = clientResource; - if (!AddResource (clientResource, ClientType, (pointer)pNewShapeEvent)) - return BadAlloc; - /* - * create a resource to contain a pointer to the list - * of clients selecting input. This must be indirect as - * the list may be arbitrarily rearranged which cannot be - * done through the resource database. - */ - if (!pHead) - { - pHead = xalloc (sizeof (ShapeEventPtr)); - if (!pHead || - !AddResource (pWin->drawable.id, ShapeEventType, (pointer)pHead)) - { - FreeResource (clientResource, RT_NONE); - return BadAlloc; - } - *pHead = 0; - } - pNewShapeEvent->next = *pHead; - *pHead = pNewShapeEvent; - break; - case xFalse: - /* delete the interest */ - if (pHead) { - pNewShapeEvent = 0; - for (pShapeEvent = *pHead; pShapeEvent; pShapeEvent = pShapeEvent->next) { - if (pShapeEvent->client == client) - break; - pNewShapeEvent = pShapeEvent; - } - if (pShapeEvent) { - FreeResource (pShapeEvent->clientResource, ClientType); - if (pNewShapeEvent) - pNewShapeEvent->next = pShapeEvent->next; - else - *pHead = pShapeEvent->next; - xfree (pShapeEvent); - } - } - break; - default: - client->errorValue = stuff->enable; - return BadValue; - } - return Success; -} - -/* - * deliver the event - */ - -void -SendShapeNotify (WindowPtr pWin, int which) -{ - ShapeEventPtr *pHead, pShapeEvent; - ClientPtr client; - xShapeNotifyEvent se; - BoxRec extents; - RegionPtr region; - BYTE shaped; - int rc; - - rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id, - ShapeEventType, serverClient, DixReadAccess); - if (rc != Success) - return; - switch (which) { - case ShapeBounding: - region = wBoundingShape(pWin); - if (region) { - extents = *REGION_EXTENTS(pWin->drawable.pScreen, region); - shaped = xTrue; - } else { - extents.x1 = -wBorderWidth (pWin); - extents.y1 = -wBorderWidth (pWin); - extents.x2 = pWin->drawable.width + wBorderWidth (pWin); - extents.y2 = pWin->drawable.height + wBorderWidth (pWin); - shaped = xFalse; - } - break; - case ShapeClip: - region = wClipShape(pWin); - if (region) { - extents = *REGION_EXTENTS(pWin->drawable.pScreen, region); - shaped = xTrue; - } else { - extents.x1 = 0; - extents.y1 = 0; - extents.x2 = pWin->drawable.width; - extents.y2 = pWin->drawable.height; - shaped = xFalse; - } - break; - case ShapeInput: - region = wInputShape(pWin); - if (region) { - extents = *REGION_EXTENTS(pWin->drawable.pScreen, region); - shaped = xTrue; - } else { - extents.x1 = -wBorderWidth (pWin); - extents.y1 = -wBorderWidth (pWin); - extents.x2 = pWin->drawable.width + wBorderWidth (pWin); - extents.y2 = pWin->drawable.height + wBorderWidth (pWin); - shaped = xFalse; - } - break; - default: - return; - } - for (pShapeEvent = *pHead; pShapeEvent; pShapeEvent = pShapeEvent->next) { - client = pShapeEvent->client; - if (client == serverClient || client->clientGone) - continue; - se.type = ShapeNotify + ShapeEventBase; - se.kind = which; - se.window = pWin->drawable.id; - se.sequenceNumber = client->sequence; - se.x = extents.x1; - se.y = extents.y1; - se.width = extents.x2 - extents.x1; - se.height = extents.y2 - extents.y1; - se.time = currentTime.milliseconds; - se.shaped = shaped; - WriteEventsToClient (client, 1, (xEvent *) &se); - } -} - -static int -ProcShapeInputSelected (ClientPtr client) -{ - REQUEST(xShapeInputSelectedReq); - WindowPtr pWin; - ShapeEventPtr pShapeEvent, *pHead; - int enabled, rc; - xShapeInputSelectedReply rep; - int n; - - REQUEST_SIZE_MATCH (xShapeInputSelectedReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); - if (rc != Success) - return rc; - rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id, - ShapeEventType, client, DixReadAccess); - if (rc != Success && rc != BadValue) - return rc; - enabled = xFalse; - if (pHead) { - for (pShapeEvent = *pHead; - pShapeEvent; - pShapeEvent = pShapeEvent->next) - { - if (pShapeEvent->client == client) { - enabled = xTrue; - break; - } - } - } - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.enabled = enabled; - if (client->swapped) { - swaps (&rep.sequenceNumber, n); - swapl (&rep.length, n); - } - WriteToClient (client, sizeof (xShapeInputSelectedReply), (char *) &rep); - return (client->noClientException); -} - -static int -ProcShapeGetRectangles (ClientPtr client) -{ - REQUEST(xShapeGetRectanglesReq); - WindowPtr pWin; - xShapeGetRectanglesReply rep; - xRectangle *rects; - int nrects, i, rc; - RegionPtr region; - int n; - - REQUEST_SIZE_MATCH(xShapeGetRectanglesReq); - rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); - if (rc != Success) - return rc; - switch (stuff->kind) { - case ShapeBounding: - region = wBoundingShape(pWin); - break; - case ShapeClip: - region = wClipShape(pWin); - break; - case ShapeInput: - region = wInputShape (pWin); - break; - default: - client->errorValue = stuff->kind; - return BadValue; - } - if (!region) { - nrects = 1; - rects = xalloc (sizeof (xRectangle)); - if (!rects) - return BadAlloc; - switch (stuff->kind) { - case ShapeBounding: - rects->x = - (int) wBorderWidth (pWin); - rects->y = - (int) wBorderWidth (pWin); - rects->width = pWin->drawable.width + wBorderWidth (pWin); - rects->height = pWin->drawable.height + wBorderWidth (pWin); - break; - case ShapeClip: - rects->x = 0; - rects->y = 0; - rects->width = pWin->drawable.width; - rects->height = pWin->drawable.height; - break; - case ShapeInput: - rects->x = - (int) wBorderWidth (pWin); - rects->y = - (int) wBorderWidth (pWin); - rects->width = pWin->drawable.width + wBorderWidth (pWin); - rects->height = pWin->drawable.height + wBorderWidth (pWin); - break; - } - } else { - BoxPtr box; - nrects = REGION_NUM_RECTS(region); - box = REGION_RECTS(region); - rects = xalloc (nrects * sizeof (xRectangle)); - if (!rects && nrects) - return BadAlloc; - for (i = 0; i < nrects; i++, box++) { - rects[i].x = box->x1; - rects[i].y = box->y1; - rects[i].width = box->x2 - box->x1; - rects[i].height = box->y2 - box->y1; - } - } - rep.type = X_Reply; - rep.sequenceNumber = client->sequence; - rep.length = bytes_to_int32(nrects * sizeof (xRectangle)); - rep.ordering = YXBanded; - rep.nrects = nrects; - if (client->swapped) { - swaps (&rep.sequenceNumber, n); - swapl (&rep.length, n); - swapl (&rep.nrects, n); - SwapShorts ((short *)rects, (unsigned long)nrects * 4); - } - WriteToClient (client, sizeof (rep), (char *) &rep); - WriteToClient (client, nrects * sizeof (xRectangle), (char *) rects); - xfree (rects); - return client->noClientException; -} - -static int -ProcShapeDispatch (ClientPtr client) -{ - REQUEST(xReq); - switch (stuff->data) { - case X_ShapeQueryVersion: - return ProcShapeQueryVersion (client); - case X_ShapeRectangles: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShapeRectangles (client); - else -#endif - return ProcShapeRectangles (client); - case X_ShapeMask: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShapeMask (client); - else -#endif - return ProcShapeMask (client); - case X_ShapeCombine: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShapeCombine (client); - else -#endif - return ProcShapeCombine (client); - case X_ShapeOffset: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShapeOffset (client); - else -#endif - return ProcShapeOffset (client); - case X_ShapeQueryExtents: - return ProcShapeQueryExtents (client); - case X_ShapeSelectInput: - return ProcShapeSelectInput (client); - case X_ShapeInputSelected: - return ProcShapeInputSelected (client); - case X_ShapeGetRectangles: - return ProcShapeGetRectangles (client); - default: - return BadRequest; - } -} - -static void -SShapeNotifyEvent(xShapeNotifyEvent *from, xShapeNotifyEvent *to) -{ - to->type = from->type; - to->kind = from->kind; - cpswapl (from->window, to->window); - cpswaps (from->sequenceNumber, to->sequenceNumber); - cpswaps (from->x, to->x); - cpswaps (from->y, to->y); - cpswaps (from->width, to->width); - cpswaps (from->height, to->height); - cpswapl (from->time, to->time); - to->shaped = from->shaped; -} - -static int -SProcShapeQueryVersion (ClientPtr client) -{ - int n; - REQUEST (xShapeQueryVersionReq); - - swaps (&stuff->length, n); - return ProcShapeQueryVersion (client); -} - -static int -SProcShapeRectangles (ClientPtr client) -{ - char n; - REQUEST (xShapeRectanglesReq); - - swaps (&stuff->length, n); - REQUEST_AT_LEAST_SIZE (xShapeRectanglesReq); - swapl (&stuff->dest, n); - swaps (&stuff->xOff, n); - swaps (&stuff->yOff, n); - SwapRestS(stuff); - return ProcShapeRectangles (client); -} - -static int -SProcShapeMask (ClientPtr client) -{ - char n; - REQUEST (xShapeMaskReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xShapeMaskReq); - swapl (&stuff->dest, n); - swaps (&stuff->xOff, n); - swaps (&stuff->yOff, n); - swapl (&stuff->src, n); - return ProcShapeMask (client); -} - -static int -SProcShapeCombine (ClientPtr client) -{ - char n; - REQUEST (xShapeCombineReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xShapeCombineReq); - swapl (&stuff->dest, n); - swaps (&stuff->xOff, n); - swaps (&stuff->yOff, n); - swapl (&stuff->src, n); - return ProcShapeCombine (client); -} - -static int -SProcShapeOffset (ClientPtr client) -{ - char n; - REQUEST (xShapeOffsetReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xShapeOffsetReq); - swapl (&stuff->dest, n); - swaps (&stuff->xOff, n); - swaps (&stuff->yOff, n); - return ProcShapeOffset (client); -} - -static int -SProcShapeQueryExtents (ClientPtr client) -{ - char n; - REQUEST (xShapeQueryExtentsReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xShapeQueryExtentsReq); - swapl (&stuff->window, n); - return ProcShapeQueryExtents (client); -} - -static int -SProcShapeSelectInput (ClientPtr client) -{ - char n; - REQUEST (xShapeSelectInputReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xShapeSelectInputReq); - swapl (&stuff->window, n); - return ProcShapeSelectInput (client); -} - -static int -SProcShapeInputSelected (ClientPtr client) -{ - int n; - REQUEST (xShapeInputSelectedReq); - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH (xShapeInputSelectedReq); - swapl (&stuff->window, n); - return ProcShapeInputSelected (client); -} - -static int -SProcShapeGetRectangles (ClientPtr client) -{ - REQUEST(xShapeGetRectanglesReq); - char n; - - swaps (&stuff->length, n); - REQUEST_SIZE_MATCH(xShapeGetRectanglesReq); - swapl (&stuff->window, n); - return ProcShapeGetRectangles (client); -} - -static int -SProcShapeDispatch (ClientPtr client) -{ - REQUEST(xReq); - switch (stuff->data) { - case X_ShapeQueryVersion: - return SProcShapeQueryVersion (client); - case X_ShapeRectangles: - return SProcShapeRectangles (client); - case X_ShapeMask: - return SProcShapeMask (client); - case X_ShapeCombine: - return SProcShapeCombine (client); - case X_ShapeOffset: - return SProcShapeOffset (client); - case X_ShapeQueryExtents: - return SProcShapeQueryExtents (client); - case X_ShapeSelectInput: - return SProcShapeSelectInput (client); - case X_ShapeInputSelected: - return SProcShapeInputSelected (client); - case X_ShapeGetRectangles: - return SProcShapeGetRectangles (client); - default: - return BadRequest; - } -} +/************************************************************
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+********************************************************/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#else
+#define SHAPE
+#endif
+
+#include <stdlib.h>
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "misc.h"
+#include "os.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "extnsionst.h"
+#include "dixstruct.h"
+#include "resource.h"
+#include "opaque.h"
+#include <X11/extensions/shapeproto.h>
+#include "regionstr.h"
+#include "gcstruct.h"
+#include "modinit.h"
+#include "protocol-versions.h"
+
+typedef RegionPtr (*CreateDftPtr)(
+ WindowPtr /* pWin */
+ );
+
+static int ShapeFreeClient(
+ pointer /* data */,
+ XID /* id */
+ );
+static int ShapeFreeEvents(
+ pointer /* data */,
+ XID /* id */
+ );
+static void SShapeNotifyEvent(
+ xShapeNotifyEvent * /* from */,
+ xShapeNotifyEvent * /* to */
+ );
+
+/* SendShapeNotify, CreateBoundingShape and CreateClipShape are used
+ * externally by the Xfixes extension and are now defined in window.h
+ */
+
+static DISPATCH_PROC(ProcShapeCombine);
+static DISPATCH_PROC(ProcShapeDispatch);
+static DISPATCH_PROC(ProcShapeGetRectangles);
+static DISPATCH_PROC(ProcShapeInputSelected);
+static DISPATCH_PROC(ProcShapeMask);
+static DISPATCH_PROC(ProcShapeOffset);
+static DISPATCH_PROC(ProcShapeQueryExtents);
+static DISPATCH_PROC(ProcShapeQueryVersion);
+static DISPATCH_PROC(ProcShapeRectangles);
+static DISPATCH_PROC(ProcShapeSelectInput);
+static DISPATCH_PROC(SProcShapeCombine);
+static DISPATCH_PROC(SProcShapeDispatch);
+static DISPATCH_PROC(SProcShapeGetRectangles);
+static DISPATCH_PROC(SProcShapeInputSelected);
+static DISPATCH_PROC(SProcShapeMask);
+static DISPATCH_PROC(SProcShapeOffset);
+static DISPATCH_PROC(SProcShapeQueryExtents);
+static DISPATCH_PROC(SProcShapeQueryVersion);
+static DISPATCH_PROC(SProcShapeRectangles);
+static DISPATCH_PROC(SProcShapeSelectInput);
+
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
+
+static int ShapeEventBase = 0;
+static RESTYPE ClientType, ShapeEventType; /* resource types for event masks */
+
+/*
+ * each window has a list of clients requesting
+ * ShapeNotify events. Each client has a resource
+ * for each window it selects ShapeNotify input for,
+ * this resource is used to delete the ShapeNotifyRec
+ * entry from the per-window queue.
+ */
+
+typedef struct _ShapeEvent *ShapeEventPtr;
+
+typedef struct _ShapeEvent {
+ ShapeEventPtr next;
+ ClientPtr client;
+ WindowPtr window;
+ XID clientResource;
+} ShapeEventRec;
+
+/****************
+ * ShapeExtensionInit
+ *
+ * Called from InitExtensions in main() or from QueryExtension() if the
+ * extension is dynamically loaded.
+ *
+ ****************/
+
+void
+ShapeExtensionInit(void)
+{
+ ExtensionEntry *extEntry;
+
+ ClientType = CreateNewResourceType(ShapeFreeClient);
+ ShapeEventType = CreateNewResourceType(ShapeFreeEvents);
+ if (ClientType && ShapeEventType &&
+ (extEntry = AddExtension(SHAPENAME, ShapeNumberEvents, 0,
+ ProcShapeDispatch, SProcShapeDispatch,
+ NULL, StandardMinorOpcode)))
+ {
+ ShapeEventBase = extEntry->eventBase;
+ EventSwapVector[ShapeEventBase] = (EventSwapPtr) SShapeNotifyEvent;
+ }
+}
+
+static int
+RegionOperate (
+ ClientPtr client,
+ WindowPtr pWin,
+ int kind,
+ RegionPtr *destRgnp,
+ RegionPtr srcRgn,
+ int op,
+ int xoff, int yoff,
+ CreateDftPtr create)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+
+ if (srcRgn && (xoff || yoff))
+ REGION_TRANSLATE(pScreen, srcRgn, xoff, yoff);
+ if (!pWin->parent)
+ {
+ if (srcRgn)
+ REGION_DESTROY(pScreen, srcRgn);
+ return Success;
+ }
+
+ /* May/30/2001:
+ * The shape.PS specs say if src is None, existing shape is to be
+ * removed (and so the op-code has no meaning in such removal);
+ * see shape.PS, page 3, ShapeMask.
+ */
+ if (srcRgn == NULL) {
+ if (*destRgnp != NULL) {
+ REGION_DESTROY (pScreen, *destRgnp);
+ *destRgnp = 0;
+ /* go on to remove shape and generate ShapeNotify */
+ }
+ else {
+ /* May/30/2001:
+ * The target currently has no shape in effect, so nothing to
+ * do here. The specs say that ShapeNotify is generated whenever
+ * the client region is "modified"; since no modification is done
+ * here, we do not generate that event. The specs does not say
+ * "it is an error to request removal when there is no shape in
+ * effect", so we return good status.
+ */
+ return Success;
+ }
+ }
+ else switch (op) {
+ case ShapeSet:
+ if (*destRgnp)
+ REGION_DESTROY(pScreen, *destRgnp);
+ *destRgnp = srcRgn;
+ srcRgn = 0;
+ break;
+ case ShapeUnion:
+ if (*destRgnp)
+ REGION_UNION(pScreen, *destRgnp, *destRgnp, srcRgn);
+ break;
+ case ShapeIntersect:
+ if (*destRgnp)
+ REGION_INTERSECT(pScreen, *destRgnp, *destRgnp, srcRgn);
+ else {
+ *destRgnp = srcRgn;
+ srcRgn = 0;
+ }
+ break;
+ case ShapeSubtract:
+ if (!*destRgnp)
+ *destRgnp = (*create)(pWin);
+ REGION_SUBTRACT(pScreen, *destRgnp, *destRgnp, srcRgn);
+ break;
+ case ShapeInvert:
+ if (!*destRgnp)
+ *destRgnp = REGION_CREATE(pScreen, (BoxPtr) 0, 0);
+ else
+ REGION_SUBTRACT(pScreen, *destRgnp, srcRgn, *destRgnp);
+ break;
+ default:
+ client->errorValue = op;
+ return BadValue;
+ }
+ if (srcRgn)
+ REGION_DESTROY(pScreen, srcRgn);
+ (*pScreen->SetShape) (pWin);
+ SendShapeNotify (pWin, kind);
+ return Success;
+}
+
+RegionPtr
+CreateBoundingShape (WindowPtr pWin)
+{
+ BoxRec extents;
+
+ extents.x1 = -wBorderWidth (pWin);
+ extents.y1 = -wBorderWidth (pWin);
+ extents.x2 = pWin->drawable.width + wBorderWidth (pWin);
+ extents.y2 = pWin->drawable.height + wBorderWidth (pWin);
+ return REGION_CREATE(pWin->drawable.pScreen, &extents, 1);
+}
+
+RegionPtr
+CreateClipShape (WindowPtr pWin)
+{
+ BoxRec extents;
+
+ extents.x1 = 0;
+ extents.y1 = 0;
+ extents.x2 = pWin->drawable.width;
+ extents.y2 = pWin->drawable.height;
+ return REGION_CREATE(pWin->drawable.pScreen, &extents, 1);
+}
+
+static int
+ProcShapeQueryVersion (ClientPtr client)
+{
+ xShapeQueryVersionReply rep;
+ int n;
+
+ REQUEST_SIZE_MATCH (xShapeQueryVersionReq);
+ memset(&rep, 0, sizeof(xShapeQueryVersionReply));
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.majorVersion = SERVER_SHAPE_MAJOR_VERSION;
+ rep.minorVersion = SERVER_SHAPE_MINOR_VERSION;
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber, n);
+ swapl(&rep.length, n);
+ swaps(&rep.majorVersion, n);
+ swaps(&rep.minorVersion, n);
+ }
+ WriteToClient(client, sizeof (xShapeQueryVersionReply), (char *)&rep);
+ return (client->noClientException);
+}
+
+/*****************
+ * ProcShapeRectangles
+ *
+ *****************/
+
+static int
+ProcShapeRectangles (ClientPtr client)
+{
+ WindowPtr pWin;
+ ScreenPtr pScreen;
+ REQUEST(xShapeRectanglesReq);
+ xRectangle *prects;
+ int nrects, ctype, rc;
+ RegionPtr srcRgn;
+ RegionPtr *destRgn;
+ CreateDftPtr createDefault;
+
+ REQUEST_AT_LEAST_SIZE (xShapeRectanglesReq);
+ UpdateCurrentTime();
+ rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ createDefault = CreateBoundingShape;
+ break;
+ case ShapeClip:
+ createDefault = CreateClipShape;
+ break;
+ case ShapeInput:
+ createDefault = CreateBoundingShape;
+ break;
+ default:
+ client->errorValue = stuff->destKind;
+ return BadValue;
+ }
+ if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) &&
+ (stuff->ordering != YXSorted) && (stuff->ordering != YXBanded))
+ {
+ client->errorValue = stuff->ordering;
+ return BadValue;
+ }
+ pScreen = pWin->drawable.pScreen;
+ nrects = ((stuff->length << 2) - sizeof(xShapeRectanglesReq));
+ if (nrects & 4)
+ return BadLength;
+ nrects >>= 3;
+ prects = (xRectangle *) &stuff[1];
+ ctype = VerifyRectOrder(nrects, prects, (int)stuff->ordering);
+ if (ctype < 0)
+ return BadMatch;
+ srcRgn = RECTS_TO_REGION(pScreen, nrects, prects, ctype);
+
+ if (!pWin->optional)
+ MakeWindowOptional (pWin);
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ destRgn = &pWin->optional->boundingShape;
+ break;
+ case ShapeClip:
+ destRgn = &pWin->optional->clipShape;
+ break;
+ case ShapeInput:
+ destRgn = &pWin->optional->inputShape;
+ break;
+ default:
+ return BadValue;
+ }
+
+ return RegionOperate (client, pWin, (int)stuff->destKind,
+ destRgn, srcRgn, (int)stuff->op,
+ stuff->xOff, stuff->yOff, createDefault);
+}
+
+#ifdef PANORAMIX
+static int
+ProcPanoramiXShapeRectangles(
+ ClientPtr client)
+{
+ REQUEST(xShapeRectanglesReq);
+ PanoramiXRes *win;
+ int j, result;
+
+ REQUEST_AT_LEAST_SIZE (xShapeRectanglesReq);
+
+ result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW,
+ client, DixWriteAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadWindow : result;
+
+ FOR_NSCREENS(j) {
+ stuff->dest = win->info[j].id;
+ result = ProcShapeRectangles (client);
+ BREAK_IF(result != Success);
+ }
+ return (result);
+}
+#endif
+
+
+/**************
+ * ProcShapeMask
+ **************/
+
+
+static int
+ProcShapeMask (ClientPtr client)
+{
+ WindowPtr pWin;
+ ScreenPtr pScreen;
+ REQUEST(xShapeMaskReq);
+ RegionPtr srcRgn;
+ RegionPtr *destRgn;
+ PixmapPtr pPixmap;
+ CreateDftPtr createDefault;
+ int rc;
+
+ REQUEST_SIZE_MATCH (xShapeMaskReq);
+ UpdateCurrentTime();
+ rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ createDefault = CreateBoundingShape;
+ break;
+ case ShapeClip:
+ createDefault = CreateClipShape;
+ break;
+ case ShapeInput:
+ createDefault = CreateBoundingShape;
+ break;
+ default:
+ client->errorValue = stuff->destKind;
+ return BadValue;
+ }
+ pScreen = pWin->drawable.pScreen;
+ if (stuff->src == None)
+ srcRgn = 0;
+ else {
+ rc = dixLookupResourceByType((pointer *)&pPixmap, stuff->src, RT_PIXMAP,
+ client, DixReadAccess);
+ if (rc != Success)
+ return (rc == BadValue) ? BadPixmap : rc;
+ if (pPixmap->drawable.pScreen != pScreen ||
+ pPixmap->drawable.depth != 1)
+ return BadMatch;
+ srcRgn = BITMAP_TO_REGION(pScreen, pPixmap);
+ if (!srcRgn)
+ return BadAlloc;
+ }
+
+ if (!pWin->optional)
+ MakeWindowOptional (pWin);
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ destRgn = &pWin->optional->boundingShape;
+ break;
+ case ShapeClip:
+ destRgn = &pWin->optional->clipShape;
+ break;
+ case ShapeInput:
+ destRgn = &pWin->optional->inputShape;
+ break;
+ default:
+ return BadValue;
+ }
+
+ return RegionOperate (client, pWin, (int)stuff->destKind,
+ destRgn, srcRgn, (int)stuff->op,
+ stuff->xOff, stuff->yOff, createDefault);
+}
+
+#ifdef PANORAMIX
+static int
+ProcPanoramiXShapeMask(
+ ClientPtr client)
+{
+ REQUEST(xShapeMaskReq);
+ PanoramiXRes *win, *pmap;
+ int j, result;
+
+ REQUEST_SIZE_MATCH (xShapeMaskReq);
+
+ result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW,
+ client, DixWriteAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadWindow : result;
+
+ if(stuff->src != None) {
+ result = dixLookupResourceByType((pointer *)&pmap, stuff->src,
+ XRT_PIXMAP, client, DixReadAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadPixmap : result;
+ } else
+ pmap = NULL;
+
+ FOR_NSCREENS(j) {
+ stuff->dest = win->info[j].id;
+ if(pmap)
+ stuff->src = pmap->info[j].id;
+ result = ProcShapeMask (client);
+ BREAK_IF(result != Success);
+ }
+ return (result);
+}
+#endif
+
+
+/************
+ * ProcShapeCombine
+ ************/
+
+static int
+ProcShapeCombine (ClientPtr client)
+{
+ WindowPtr pSrcWin, pDestWin;
+ ScreenPtr pScreen;
+ REQUEST(xShapeCombineReq);
+ RegionPtr srcRgn;
+ RegionPtr *destRgn;
+ CreateDftPtr createDefault;
+ CreateDftPtr createSrc;
+ RegionPtr tmp;
+ int rc;
+
+ REQUEST_SIZE_MATCH (xShapeCombineReq);
+ UpdateCurrentTime();
+ rc = dixLookupWindow(&pDestWin, stuff->dest, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ if (!pDestWin->optional)
+ MakeWindowOptional (pDestWin);
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ createDefault = CreateBoundingShape;
+ break;
+ case ShapeClip:
+ createDefault = CreateClipShape;
+ break;
+ case ShapeInput:
+ createDefault = CreateBoundingShape;
+ break;
+ default:
+ client->errorValue = stuff->destKind;
+ return BadValue;
+ }
+ pScreen = pDestWin->drawable.pScreen;
+
+ rc = dixLookupWindow(&pSrcWin, stuff->src, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ switch (stuff->srcKind) {
+ case ShapeBounding:
+ srcRgn = wBoundingShape (pSrcWin);
+ createSrc = CreateBoundingShape;
+ break;
+ case ShapeClip:
+ srcRgn = wClipShape (pSrcWin);
+ createSrc = CreateClipShape;
+ break;
+ case ShapeInput:
+ srcRgn = wInputShape (pSrcWin);
+ createSrc = CreateBoundingShape;
+ break;
+ default:
+ client->errorValue = stuff->srcKind;
+ return BadValue;
+ }
+ if (pSrcWin->drawable.pScreen != pScreen)
+ {
+ return BadMatch;
+ }
+
+ if (srcRgn) {
+ tmp = REGION_CREATE(pScreen, (BoxPtr) 0, 0);
+ REGION_COPY(pScreen, tmp, srcRgn);
+ srcRgn = tmp;
+ } else
+ srcRgn = (*createSrc) (pSrcWin);
+
+ if (!pDestWin->optional)
+ MakeWindowOptional (pDestWin);
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ destRgn = &pDestWin->optional->boundingShape;
+ break;
+ case ShapeClip:
+ destRgn = &pDestWin->optional->clipShape;
+ break;
+ case ShapeInput:
+ destRgn = &pDestWin->optional->inputShape;
+ break;
+ default:
+ return BadValue;
+ }
+
+ return RegionOperate (client, pDestWin, (int)stuff->destKind,
+ destRgn, srcRgn, (int)stuff->op,
+ stuff->xOff, stuff->yOff, createDefault);
+}
+
+
+#ifdef PANORAMIX
+static int
+ProcPanoramiXShapeCombine(
+ ClientPtr client)
+{
+ REQUEST(xShapeCombineReq);
+ PanoramiXRes *win, *win2;
+ int j, result;
+
+ REQUEST_AT_LEAST_SIZE (xShapeCombineReq);
+
+ result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW,
+ client, DixWriteAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadWindow : result;
+
+ result = dixLookupResourceByType((pointer *)&win2, stuff->src, XRT_WINDOW,
+ client, DixReadAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadWindow : result;
+
+ FOR_NSCREENS(j) {
+ stuff->dest = win->info[j].id;
+ stuff->src = win2->info[j].id;
+ result = ProcShapeCombine (client);
+ BREAK_IF(result != Success);
+ }
+ return (result);
+}
+#endif
+
+/*************
+ * ProcShapeOffset
+ *************/
+
+static int
+ProcShapeOffset (ClientPtr client)
+{
+ WindowPtr pWin;
+ ScreenPtr pScreen;
+ REQUEST(xShapeOffsetReq);
+ RegionPtr srcRgn;
+ int rc;
+
+ REQUEST_SIZE_MATCH (xShapeOffsetReq);
+ UpdateCurrentTime();
+ rc = dixLookupWindow(&pWin, stuff->dest, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ switch (stuff->destKind) {
+ case ShapeBounding:
+ srcRgn = wBoundingShape (pWin);
+ break;
+ case ShapeClip:
+ srcRgn = wClipShape(pWin);
+ break;
+ case ShapeInput:
+ srcRgn = wInputShape (pWin);
+ break;
+ default:
+ client->errorValue = stuff->destKind;
+ return BadValue;
+ }
+ pScreen = pWin->drawable.pScreen;
+ if (srcRgn)
+ {
+ REGION_TRANSLATE(pScreen, srcRgn, stuff->xOff, stuff->yOff);
+ (*pScreen->SetShape) (pWin);
+ }
+ SendShapeNotify (pWin, (int)stuff->destKind);
+ return Success;
+}
+
+
+#ifdef PANORAMIX
+static int
+ProcPanoramiXShapeOffset(
+ ClientPtr client)
+{
+ REQUEST(xShapeOffsetReq);
+ PanoramiXRes *win;
+ int j, result;
+
+ REQUEST_AT_LEAST_SIZE (xShapeOffsetReq);
+
+ result = dixLookupResourceByType((pointer *)&win, stuff->dest, XRT_WINDOW,
+ client, DixWriteAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadWindow : result;
+
+ FOR_NSCREENS(j) {
+ stuff->dest = win->info[j].id;
+ result = ProcShapeOffset (client);
+ if(result != Success) break;
+ }
+ return (result);
+}
+#endif
+
+
+static int
+ProcShapeQueryExtents (ClientPtr client)
+{
+ REQUEST(xShapeQueryExtentsReq);
+ WindowPtr pWin;
+ xShapeQueryExtentsReply rep;
+ BoxRec extents, *pExtents;
+ int n, rc;
+ RegionPtr region;
+
+ REQUEST_SIZE_MATCH (xShapeQueryExtentsReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ memset(&rep, 0, sizeof(xShapeQueryExtentsReply));
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.boundingShaped = (wBoundingShape(pWin) != 0);
+ rep.clipShaped = (wClipShape(pWin) != 0);
+ if ((region = wBoundingShape(pWin))) {
+ /* this is done in two steps because of a compiler bug on SunOS 4.1.3 */
+ pExtents = REGION_EXTENTS(pWin->drawable.pScreen, region);
+ extents = *pExtents;
+ } else {
+ extents.x1 = -wBorderWidth (pWin);
+ extents.y1 = -wBorderWidth (pWin);
+ extents.x2 = pWin->drawable.width + wBorderWidth (pWin);
+ extents.y2 = pWin->drawable.height + wBorderWidth (pWin);
+ }
+ rep.xBoundingShape = extents.x1;
+ rep.yBoundingShape = extents.y1;
+ rep.widthBoundingShape = extents.x2 - extents.x1;
+ rep.heightBoundingShape = extents.y2 - extents.y1;
+ if ((region = wClipShape(pWin))) {
+ /* this is done in two steps because of a compiler bug on SunOS 4.1.3 */
+ pExtents = REGION_EXTENTS(pWin->drawable.pScreen, region);
+ extents = *pExtents;
+ } else {
+ extents.x1 = 0;
+ extents.y1 = 0;
+ extents.x2 = pWin->drawable.width;
+ extents.y2 = pWin->drawable.height;
+ }
+ rep.xClipShape = extents.x1;
+ rep.yClipShape = extents.y1;
+ rep.widthClipShape = extents.x2 - extents.x1;
+ rep.heightClipShape = extents.y2 - extents.y1;
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber, n);
+ swapl(&rep.length, n);
+ swaps(&rep.xBoundingShape, n);
+ swaps(&rep.yBoundingShape, n);
+ swaps(&rep.widthBoundingShape, n);
+ swaps(&rep.heightBoundingShape, n);
+ swaps(&rep.xClipShape, n);
+ swaps(&rep.yClipShape, n);
+ swaps(&rep.widthClipShape, n);
+ swaps(&rep.heightClipShape, n);
+ }
+ WriteToClient(client, sizeof (xShapeQueryExtentsReply), (char *)&rep);
+ return (client->noClientException);
+}
+
+/*ARGSUSED*/
+static int
+ShapeFreeClient (pointer data, XID id)
+{
+ ShapeEventPtr pShapeEvent;
+ WindowPtr pWin;
+ ShapeEventPtr *pHead, pCur, pPrev;
+ int rc;
+
+ pShapeEvent = (ShapeEventPtr) data;
+ pWin = pShapeEvent->window;
+ rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
+ ShapeEventType, serverClient, DixReadAccess);
+ if (rc == Success) {
+ pPrev = 0;
+ for (pCur = *pHead; pCur && pCur != pShapeEvent; pCur=pCur->next)
+ pPrev = pCur;
+ if (pCur)
+ {
+ if (pPrev)
+ pPrev->next = pShapeEvent->next;
+ else
+ *pHead = pShapeEvent->next;
+ }
+ }
+ xfree ((pointer) pShapeEvent);
+ return 1;
+}
+
+/*ARGSUSED*/
+static int
+ShapeFreeEvents (pointer data, XID id)
+{
+ ShapeEventPtr *pHead, pCur, pNext;
+
+ pHead = (ShapeEventPtr *) data;
+ for (pCur = *pHead; pCur; pCur = pNext) {
+ pNext = pCur->next;
+ FreeResource (pCur->clientResource, ClientType);
+ xfree ((pointer) pCur);
+ }
+ xfree ((pointer) pHead);
+ return 1;
+}
+
+static int
+ProcShapeSelectInput (ClientPtr client)
+{
+ REQUEST(xShapeSelectInputReq);
+ WindowPtr pWin;
+ ShapeEventPtr pShapeEvent, pNewShapeEvent, *pHead;
+ XID clientResource;
+ int rc;
+
+ REQUEST_SIZE_MATCH (xShapeSelectInputReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixReceiveAccess);
+ if (rc != Success)
+ return rc;
+ rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
+ ShapeEventType, client, DixWriteAccess);
+ if (rc != Success && rc != BadValue)
+ return rc;
+
+ switch (stuff->enable) {
+ case xTrue:
+ if (pHead) {
+
+ /* check for existing entry. */
+ for (pShapeEvent = *pHead;
+ pShapeEvent;
+ pShapeEvent = pShapeEvent->next)
+ {
+ if (pShapeEvent->client == client)
+ return Success;
+ }
+ }
+
+ /* build the entry */
+ pNewShapeEvent = xalloc (sizeof (ShapeEventRec));
+ if (!pNewShapeEvent)
+ return BadAlloc;
+ pNewShapeEvent->next = 0;
+ pNewShapeEvent->client = client;
+ pNewShapeEvent->window = pWin;
+ /*
+ * add a resource that will be deleted when
+ * the client goes away
+ */
+ clientResource = FakeClientID (client->index);
+ pNewShapeEvent->clientResource = clientResource;
+ if (!AddResource (clientResource, ClientType, (pointer)pNewShapeEvent))
+ return BadAlloc;
+ /*
+ * create a resource to contain a pointer to the list
+ * of clients selecting input. This must be indirect as
+ * the list may be arbitrarily rearranged which cannot be
+ * done through the resource database.
+ */
+ if (!pHead)
+ {
+ pHead = xalloc (sizeof (ShapeEventPtr));
+ if (!pHead ||
+ !AddResource (pWin->drawable.id, ShapeEventType, (pointer)pHead))
+ {
+ FreeResource (clientResource, RT_NONE);
+ return BadAlloc;
+ }
+ *pHead = 0;
+ }
+ pNewShapeEvent->next = *pHead;
+ *pHead = pNewShapeEvent;
+ break;
+ case xFalse:
+ /* delete the interest */
+ if (pHead) {
+ pNewShapeEvent = 0;
+ for (pShapeEvent = *pHead; pShapeEvent; pShapeEvent = pShapeEvent->next) {
+ if (pShapeEvent->client == client)
+ break;
+ pNewShapeEvent = pShapeEvent;
+ }
+ if (pShapeEvent) {
+ FreeResource (pShapeEvent->clientResource, ClientType);
+ if (pNewShapeEvent)
+ pNewShapeEvent->next = pShapeEvent->next;
+ else
+ *pHead = pShapeEvent->next;
+ xfree (pShapeEvent);
+ }
+ }
+ break;
+ default:
+ client->errorValue = stuff->enable;
+ return BadValue;
+ }
+ return Success;
+}
+
+/*
+ * deliver the event
+ */
+
+void
+SendShapeNotify (WindowPtr pWin, int which)
+{
+ ShapeEventPtr *pHead, pShapeEvent;
+ ClientPtr client;
+ xShapeNotifyEvent se;
+ BoxRec extents;
+ RegionPtr region;
+ BYTE shaped;
+ int rc;
+
+ rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
+ ShapeEventType, serverClient, DixReadAccess);
+ if (rc != Success)
+ return;
+ switch (which) {
+ case ShapeBounding:
+ region = wBoundingShape(pWin);
+ if (region) {
+ extents = *REGION_EXTENTS(pWin->drawable.pScreen, region);
+ shaped = xTrue;
+ } else {
+ extents.x1 = -wBorderWidth (pWin);
+ extents.y1 = -wBorderWidth (pWin);
+ extents.x2 = pWin->drawable.width + wBorderWidth (pWin);
+ extents.y2 = pWin->drawable.height + wBorderWidth (pWin);
+ shaped = xFalse;
+ }
+ break;
+ case ShapeClip:
+ region = wClipShape(pWin);
+ if (region) {
+ extents = *REGION_EXTENTS(pWin->drawable.pScreen, region);
+ shaped = xTrue;
+ } else {
+ extents.x1 = 0;
+ extents.y1 = 0;
+ extents.x2 = pWin->drawable.width;
+ extents.y2 = pWin->drawable.height;
+ shaped = xFalse;
+ }
+ break;
+ case ShapeInput:
+ region = wInputShape(pWin);
+ if (region) {
+ extents = *REGION_EXTENTS(pWin->drawable.pScreen, region);
+ shaped = xTrue;
+ } else {
+ extents.x1 = -wBorderWidth (pWin);
+ extents.y1 = -wBorderWidth (pWin);
+ extents.x2 = pWin->drawable.width + wBorderWidth (pWin);
+ extents.y2 = pWin->drawable.height + wBorderWidth (pWin);
+ shaped = xFalse;
+ }
+ break;
+ default:
+ return;
+ }
+ for (pShapeEvent = *pHead; pShapeEvent; pShapeEvent = pShapeEvent->next) {
+ client = pShapeEvent->client;
+ if (client == serverClient || client->clientGone)
+ continue;
+ se.type = ShapeNotify + ShapeEventBase;
+ se.kind = which;
+ se.window = pWin->drawable.id;
+ se.sequenceNumber = client->sequence;
+ se.x = extents.x1;
+ se.y = extents.y1;
+ se.width = extents.x2 - extents.x1;
+ se.height = extents.y2 - extents.y1;
+ se.time = currentTime.milliseconds;
+ se.shaped = shaped;
+ WriteEventsToClient (client, 1, (xEvent *) &se);
+ }
+}
+
+static int
+ProcShapeInputSelected (ClientPtr client)
+{
+ REQUEST(xShapeInputSelectedReq);
+ WindowPtr pWin;
+ ShapeEventPtr pShapeEvent, *pHead;
+ int enabled, rc;
+ xShapeInputSelectedReply rep;
+ int n;
+
+ REQUEST_SIZE_MATCH (xShapeInputSelectedReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ rc = dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
+ ShapeEventType, client, DixReadAccess);
+ if (rc != Success && rc != BadValue)
+ return rc;
+ enabled = xFalse;
+ if (pHead) {
+ for (pShapeEvent = *pHead;
+ pShapeEvent;
+ pShapeEvent = pShapeEvent->next)
+ {
+ if (pShapeEvent->client == client) {
+ enabled = xTrue;
+ break;
+ }
+ }
+ }
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.enabled = enabled;
+ if (client->swapped) {
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ }
+ WriteToClient (client, sizeof (xShapeInputSelectedReply), (char *) &rep);
+ return (client->noClientException);
+}
+
+static int
+ProcShapeGetRectangles (ClientPtr client)
+{
+ REQUEST(xShapeGetRectanglesReq);
+ WindowPtr pWin;
+ xShapeGetRectanglesReply rep;
+ xRectangle *rects;
+ int nrects, i, rc;
+ RegionPtr region;
+ int n;
+
+ REQUEST_SIZE_MATCH(xShapeGetRectanglesReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ switch (stuff->kind) {
+ case ShapeBounding:
+ region = wBoundingShape(pWin);
+ break;
+ case ShapeClip:
+ region = wClipShape(pWin);
+ break;
+ case ShapeInput:
+ region = wInputShape (pWin);
+ break;
+ default:
+ client->errorValue = stuff->kind;
+ return BadValue;
+ }
+ if (!region) {
+ nrects = 1;
+ rects = xalloc (sizeof (xRectangle));
+ if (!rects)
+ return BadAlloc;
+ switch (stuff->kind) {
+ case ShapeBounding:
+ rects->x = - (int) wBorderWidth (pWin);
+ rects->y = - (int) wBorderWidth (pWin);
+ rects->width = pWin->drawable.width + wBorderWidth (pWin);
+ rects->height = pWin->drawable.height + wBorderWidth (pWin);
+ break;
+ case ShapeClip:
+ rects->x = 0;
+ rects->y = 0;
+ rects->width = pWin->drawable.width;
+ rects->height = pWin->drawable.height;
+ break;
+ case ShapeInput:
+ rects->x = - (int) wBorderWidth (pWin);
+ rects->y = - (int) wBorderWidth (pWin);
+ rects->width = pWin->drawable.width + wBorderWidth (pWin);
+ rects->height = pWin->drawable.height + wBorderWidth (pWin);
+ break;
+ }
+ } else {
+ BoxPtr box;
+ nrects = REGION_NUM_RECTS(region);
+ box = REGION_RECTS(region);
+ rects = xalloc (nrects * sizeof (xRectangle));
+ if (!rects && nrects)
+ return BadAlloc;
+ for (i = 0; i < nrects; i++, box++) {
+ rects[i].x = box->x1;
+ rects[i].y = box->y1;
+ rects[i].width = box->x2 - box->x1;
+ rects[i].height = box->y2 - box->y1;
+ }
+ }
+ rep.type = X_Reply;
+ rep.sequenceNumber = client->sequence;
+ rep.length = bytes_to_int32(nrects * sizeof (xRectangle));
+ rep.ordering = YXBanded;
+ rep.nrects = nrects;
+ if (client->swapped) {
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swapl (&rep.nrects, n);
+ SwapShorts ((short *)rects, (unsigned long)nrects * 4);
+ }
+ WriteToClient (client, sizeof (rep), (char *) &rep);
+ WriteToClient (client, nrects * sizeof (xRectangle), (char *) rects);
+ xfree (rects);
+ return client->noClientException;
+}
+
+static int
+ProcShapeDispatch (ClientPtr client)
+{
+ REQUEST(xReq);
+ switch (stuff->data) {
+ case X_ShapeQueryVersion:
+ return ProcShapeQueryVersion (client);
+ case X_ShapeRectangles:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShapeRectangles (client);
+ else
+#endif
+ return ProcShapeRectangles (client);
+ case X_ShapeMask:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShapeMask (client);
+ else
+#endif
+ return ProcShapeMask (client);
+ case X_ShapeCombine:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShapeCombine (client);
+ else
+#endif
+ return ProcShapeCombine (client);
+ case X_ShapeOffset:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShapeOffset (client);
+ else
+#endif
+ return ProcShapeOffset (client);
+ case X_ShapeQueryExtents:
+ return ProcShapeQueryExtents (client);
+ case X_ShapeSelectInput:
+ return ProcShapeSelectInput (client);
+ case X_ShapeInputSelected:
+ return ProcShapeInputSelected (client);
+ case X_ShapeGetRectangles:
+ return ProcShapeGetRectangles (client);
+ default:
+ return BadRequest;
+ }
+}
+
+static void
+SShapeNotifyEvent(xShapeNotifyEvent *from, xShapeNotifyEvent *to)
+{
+ to->type = from->type;
+ to->kind = from->kind;
+ cpswapl (from->window, to->window);
+ cpswaps (from->sequenceNumber, to->sequenceNumber);
+ cpswaps (from->x, to->x);
+ cpswaps (from->y, to->y);
+ cpswaps (from->width, to->width);
+ cpswaps (from->height, to->height);
+ cpswapl (from->time, to->time);
+ to->shaped = from->shaped;
+}
+
+static int
+SProcShapeQueryVersion (ClientPtr client)
+{
+ int n;
+ REQUEST (xShapeQueryVersionReq);
+
+ swaps (&stuff->length, n);
+ return ProcShapeQueryVersion (client);
+}
+
+static int
+SProcShapeRectangles (ClientPtr client)
+{
+ char n;
+ REQUEST (xShapeRectanglesReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_AT_LEAST_SIZE (xShapeRectanglesReq);
+ swapl (&stuff->dest, n);
+ swaps (&stuff->xOff, n);
+ swaps (&stuff->yOff, n);
+ SwapRestS(stuff);
+ return ProcShapeRectangles (client);
+}
+
+static int
+SProcShapeMask (ClientPtr client)
+{
+ char n;
+ REQUEST (xShapeMaskReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH (xShapeMaskReq);
+ swapl (&stuff->dest, n);
+ swaps (&stuff->xOff, n);
+ swaps (&stuff->yOff, n);
+ swapl (&stuff->src, n);
+ return ProcShapeMask (client);
+}
+
+static int
+SProcShapeCombine (ClientPtr client)
+{
+ char n;
+ REQUEST (xShapeCombineReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH (xShapeCombineReq);
+ swapl (&stuff->dest, n);
+ swaps (&stuff->xOff, n);
+ swaps (&stuff->yOff, n);
+ swapl (&stuff->src, n);
+ return ProcShapeCombine (client);
+}
+
+static int
+SProcShapeOffset (ClientPtr client)
+{
+ char n;
+ REQUEST (xShapeOffsetReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH (xShapeOffsetReq);
+ swapl (&stuff->dest, n);
+ swaps (&stuff->xOff, n);
+ swaps (&stuff->yOff, n);
+ return ProcShapeOffset (client);
+}
+
+static int
+SProcShapeQueryExtents (ClientPtr client)
+{
+ char n;
+ REQUEST (xShapeQueryExtentsReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH (xShapeQueryExtentsReq);
+ swapl (&stuff->window, n);
+ return ProcShapeQueryExtents (client);
+}
+
+static int
+SProcShapeSelectInput (ClientPtr client)
+{
+ char n;
+ REQUEST (xShapeSelectInputReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH (xShapeSelectInputReq);
+ swapl (&stuff->window, n);
+ return ProcShapeSelectInput (client);
+}
+
+static int
+SProcShapeInputSelected (ClientPtr client)
+{
+ int n;
+ REQUEST (xShapeInputSelectedReq);
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH (xShapeInputSelectedReq);
+ swapl (&stuff->window, n);
+ return ProcShapeInputSelected (client);
+}
+
+static int
+SProcShapeGetRectangles (ClientPtr client)
+{
+ REQUEST(xShapeGetRectanglesReq);
+ char n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xShapeGetRectanglesReq);
+ swapl (&stuff->window, n);
+ return ProcShapeGetRectangles (client);
+}
+
+static int
+SProcShapeDispatch (ClientPtr client)
+{
+ REQUEST(xReq);
+ switch (stuff->data) {
+ case X_ShapeQueryVersion:
+ return SProcShapeQueryVersion (client);
+ case X_ShapeRectangles:
+ return SProcShapeRectangles (client);
+ case X_ShapeMask:
+ return SProcShapeMask (client);
+ case X_ShapeCombine:
+ return SProcShapeCombine (client);
+ case X_ShapeOffset:
+ return SProcShapeOffset (client);
+ case X_ShapeQueryExtents:
+ return SProcShapeQueryExtents (client);
+ case X_ShapeSelectInput:
+ return SProcShapeSelectInput (client);
+ case X_ShapeInputSelected:
+ return SProcShapeInputSelected (client);
+ case X_ShapeGetRectangles:
+ return SProcShapeGetRectangles (client);
+ default:
+ return BadRequest;
+ }
+}
diff --git a/xorg-server/Xext/shm.c b/xorg-server/Xext/shm.c index 52e117940..d3393bfed 100644 --- a/xorg-server/Xext/shm.c +++ b/xorg-server/Xext/shm.c @@ -1,1278 +1,1279 @@ -/************************************************************ - -Copyright 1989, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of The Open Group shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from The Open Group. - -********************************************************/ - -/* THIS IS NOT AN X CONSORTIUM STANDARD OR AN X PROJECT TEAM SPECIFICATION */ - - -#define SHM - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <sys/types.h> -#if !defined(_MSC_VER) -#include <sys/ipc.h> -#include <sys/shm.h> -#endif -#include <unistd.h> -#include <sys/stat.h> -#include <X11/X.h> -#include <X11/Xproto.h> -#include "misc.h" -#include "os.h" -#include "dixstruct.h" -#include "resource.h" -#include "scrnintstr.h" -#include "windowstr.h" -#include "pixmapstr.h" -#include "gcstruct.h" -#include "extnsionst.h" -#include "servermd.h" -#include "shmint.h" -#include "xace.h" -#include <X11/extensions/shmproto.h> -#include <X11/Xfuncproto.h> - -/* Needed for Solaris cross-zone shared memory extension */ -#ifdef HAVE_SHMCTL64 -#include <sys/ipc_impl.h> -#define SHMSTAT(id, buf) shmctl64(id, IPC_STAT64, buf) -#define SHMSTAT_TYPE struct shmid_ds64 -#define SHMPERM_TYPE struct ipc_perm64 -#define SHM_PERM(buf) buf.shmx_perm -#define SHM_SEGSZ(buf) buf.shmx_segsz -#define SHMPERM_UID(p) p->ipcx_uid -#define SHMPERM_CUID(p) p->ipcx_cuid -#define SHMPERM_GID(p) p->ipcx_gid -#define SHMPERM_CGID(p) p->ipcx_cgid -#define SHMPERM_MODE(p) p->ipcx_mode -#define SHMPERM_ZONEID(p) p->ipcx_zoneid -#else -#define SHMSTAT(id, buf) shmctl(id, IPC_STAT, buf) -#define SHMSTAT_TYPE struct shmid_ds -#define SHMPERM_TYPE struct ipc_perm -#define SHM_PERM(buf) buf.shm_perm -#define SHM_SEGSZ(buf) buf.shm_segsz -#define SHMPERM_UID(p) p->uid -#define SHMPERM_CUID(p) p->cuid -#define SHMPERM_GID(p) p->gid -#define SHMPERM_CGID(p) p->cgid -#define SHMPERM_MODE(p) p->mode -#endif - -#ifdef PANORAMIX -#include "panoramiX.h" -#include "panoramiXsrv.h" -#endif - -#include "modinit.h" - -typedef struct _ShmDesc { - struct _ShmDesc *next; - int shmid; - int refcnt; - char *addr; - Bool writable; - unsigned long size; -} ShmDescRec, *ShmDescPtr; - -static PixmapPtr fbShmCreatePixmap(XSHM_CREATE_PIXMAP_ARGS); -static int ShmDetachSegment( - pointer /* value */, - XID /* shmseg */ - ); -static void ShmResetProc( - ExtensionEntry * /* extEntry */ - ); -static void SShmCompletionEvent( - xShmCompletionEvent * /* from */, - xShmCompletionEvent * /* to */ - ); - -static Bool ShmDestroyPixmap (PixmapPtr pPixmap); - -static DISPATCH_PROC(ProcShmAttach); -static DISPATCH_PROC(ProcShmCreatePixmap); -static DISPATCH_PROC(ProcShmDetach); -static DISPATCH_PROC(ProcShmDispatch); -static DISPATCH_PROC(ProcShmGetImage); -static DISPATCH_PROC(ProcShmPutImage); -static DISPATCH_PROC(ProcShmQueryVersion); -static DISPATCH_PROC(SProcShmAttach); -static DISPATCH_PROC(SProcShmCreatePixmap); -static DISPATCH_PROC(SProcShmDetach); -static DISPATCH_PROC(SProcShmDispatch); -static DISPATCH_PROC(SProcShmGetImage); -static DISPATCH_PROC(SProcShmPutImage); -static DISPATCH_PROC(SProcShmQueryVersion); - -static unsigned char ShmReqCode; -int ShmCompletionCode; -int BadShmSegCode; -RESTYPE ShmSegType; -static ShmDescPtr Shmsegs; -static Bool sharedPixmaps; -static ShmFuncsPtr shmFuncs[MAXSCREENS]; -static DestroyPixmapProcPtr destroyPixmap[MAXSCREENS]; -static int shmPixmapPrivateIndex; -static DevPrivateKey shmPixmapPrivate = &shmPixmapPrivateIndex; -static ShmFuncs miFuncs = {NULL, NULL}; -static ShmFuncs fbFuncs = {fbShmCreatePixmap, NULL}; - -#define VERIFY_SHMSEG(shmseg,shmdesc,client) \ -{ \ - int rc; \ - rc = dixLookupResourceByType((pointer *)&(shmdesc), shmseg, ShmSegType, \ - client, DixReadAccess); \ - if (rc != Success) \ - return (rc == BadValue) ? BadShmSegCode : rc; \ -} - -#define VERIFY_SHMPTR(shmseg,offset,needwrite,shmdesc,client) \ -{ \ - VERIFY_SHMSEG(shmseg, shmdesc, client); \ - if ((offset & 3) || (offset > shmdesc->size)) \ - { \ - client->errorValue = offset; \ - return BadValue; \ - } \ - if (needwrite && !shmdesc->writable) \ - return BadAccess; \ -} - -#define VERIFY_SHMSIZE(shmdesc,offset,len,client) \ -{ \ - if ((offset + len) > shmdesc->size) \ - { \ - return BadAccess; \ - } \ -} - - -#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__) || defined(__DragonFly__) -#include <sys/signal.h> - -static Bool badSysCall = FALSE; - -static void -SigSysHandler(int signo) -{ - badSysCall = TRUE; -} - -static Bool CheckForShmSyscall(void) -{ - void (*oldHandler)(); - int shmid = -1; - - /* If no SHM support in the kernel, the bad syscall will generate SIGSYS */ - oldHandler = signal(SIGSYS, SigSysHandler); - - badSysCall = FALSE; - shmid = shmget(IPC_PRIVATE, 4096, IPC_CREAT); - - if (shmid != -1) - { - /* Successful allocation - clean up */ - shmctl(shmid, IPC_RMID, NULL); - } - else - { - /* Allocation failed */ - badSysCall = TRUE; - } - signal(SIGSYS, oldHandler); - return(!badSysCall); -} - -#define MUST_CHECK_FOR_SHM_SYSCALL - -#endif - -void -ShmExtensionInit(INITARGS) -{ - ExtensionEntry *extEntry; - int i; - -#ifdef MUST_CHECK_FOR_SHM_SYSCALL - if (!CheckForShmSyscall()) - { - ErrorF("MIT-SHM extension disabled due to lack of kernel support\n"); - return; - } -#endif - - sharedPixmaps = xFalse; - { - sharedPixmaps = xTrue; - for (i = 0; i < screenInfo.numScreens; i++) - { - if (!shmFuncs[i]) - shmFuncs[i] = &miFuncs; - if (!shmFuncs[i]->CreatePixmap) - sharedPixmaps = xFalse; - } - if (sharedPixmaps) - for (i = 0; i < screenInfo.numScreens; i++) - { - destroyPixmap[i] = screenInfo.screens[i]->DestroyPixmap; - screenInfo.screens[i]->DestroyPixmap = ShmDestroyPixmap; - } - } - ShmSegType = CreateNewResourceType(ShmDetachSegment); - if (ShmSegType && - (extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors, - ProcShmDispatch, SProcShmDispatch, - ShmResetProc, StandardMinorOpcode))) - { - ShmReqCode = (unsigned char)extEntry->base; - ShmCompletionCode = extEntry->eventBase; - BadShmSegCode = extEntry->errorBase; - EventSwapVector[ShmCompletionCode] = (EventSwapPtr) SShmCompletionEvent; - } -} - -/*ARGSUSED*/ -static void -ShmResetProc(ExtensionEntry *extEntry) -{ - int i; - - for (i = 0; i < MAXSCREENS; i++) - { - shmFuncs[i] = NULL; - } -} - -void -ShmRegisterFuncs(ScreenPtr pScreen, ShmFuncsPtr funcs) -{ - shmFuncs[pScreen->myNum] = funcs; -} - -static Bool -ShmDestroyPixmap (PixmapPtr pPixmap) -{ - ScreenPtr pScreen = pPixmap->drawable.pScreen; - Bool ret; - if (pPixmap->refcnt == 1) - { - ShmDescPtr shmdesc; - shmdesc = (ShmDescPtr)dixLookupPrivate(&pPixmap->devPrivates, - shmPixmapPrivate); - if (shmdesc) - ShmDetachSegment ((pointer) shmdesc, pPixmap->drawable.id); - } - - pScreen->DestroyPixmap = destroyPixmap[pScreen->myNum]; - ret = (*pScreen->DestroyPixmap) (pPixmap); - destroyPixmap[pScreen->myNum] = pScreen->DestroyPixmap; - pScreen->DestroyPixmap = ShmDestroyPixmap; - return ret; -} - -void -ShmRegisterFbFuncs(ScreenPtr pScreen) -{ - shmFuncs[pScreen->myNum] = &fbFuncs; -} - -static int -ProcShmQueryVersion(ClientPtr client) -{ - xShmQueryVersionReply rep; - int n; - - REQUEST_SIZE_MATCH(xShmQueryVersionReq); - memset(&rep, 0, sizeof(xShmQueryVersionReply)); - rep.type = X_Reply; - rep.length = 0; - rep.sequenceNumber = client->sequence; - rep.sharedPixmaps = sharedPixmaps; - rep.pixmapFormat = sharedPixmaps ? ZPixmap : 0; - rep.majorVersion = SHM_MAJOR_VERSION; - rep.minorVersion = SHM_MINOR_VERSION; -#ifndef _MSC_VER - rep.uid = geteuid(); - rep.gid = getegid(); -#endif - if (client->swapped) { - swaps(&rep.sequenceNumber, n); - swapl(&rep.length, n); - swaps(&rep.majorVersion, n); - swaps(&rep.minorVersion, n); - swaps(&rep.uid, n); - swaps(&rep.gid, n); - } - WriteToClient(client, sizeof(xShmQueryVersionReply), (char *)&rep); - return (client->noClientException); -} - -/* - * Simulate the access() system call for a shared memory segement, - * using the credentials from the client if available - */ -static int -shm_access(ClientPtr client, SHMPERM_TYPE *perm, int readonly) -{ - int uid, gid; - mode_t mask; - int uidset = 0, gidset = 0; - LocalClientCredRec *lcc; - - if (GetLocalClientCreds(client, &lcc) != -1) { - - if (lcc->fieldsSet & LCC_UID_SET) { - uid = lcc->euid; - uidset = 1; - } - if (lcc->fieldsSet & LCC_GID_SET) { - gid = lcc->egid; - gidset = 1; - } - -#if defined(HAVE_GETZONEID) && defined(SHMPERM_ZONEID) - if ( ((lcc->fieldsSet & LCC_ZID_SET) == 0) || (lcc->zoneid == -1) - || (lcc->zoneid != SHMPERM_ZONEID(perm))) { - uidset = 0; - gidset = 0; - } -#endif - FreeLocalClientCreds(lcc); - - if (uidset) { - /* User id 0 always gets access */ - if (uid == 0) { - return 0; - } - #ifdef _MSC_VER - __asm int 3; - #else - /* Check the owner */ - if (SHMPERM_UID(perm) == uid || SHMPERM_CUID(perm) == uid) { - mask = S_IRUSR; - if (!readonly) { - mask |= S_IWUSR; - } - return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1; - } - #endif - } - - if (gidset) { - /* Check the group */ - #ifdef _MSC_VER - __asm int 3; - #else - if (SHMPERM_GID(perm) == gid || SHMPERM_CGID(perm) == gid) { - mask = S_IRGRP; - if (!readonly) { - mask |= S_IWGRP; - } - return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1; - } - #endif - } - } - #ifdef _MSC_VER - __asm int 3; - return -1; - #else - /* Otherwise, check everyone else */ - mask = S_IROTH; - if (!readonly) { - mask |= S_IWOTH; - } - return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1; - #endif -} - -static int -ProcShmAttach(ClientPtr client) -{ - SHMSTAT_TYPE buf; - ShmDescPtr shmdesc; - REQUEST(xShmAttachReq); - - REQUEST_SIZE_MATCH(xShmAttachReq); - LEGAL_NEW_RESOURCE(stuff->shmseg, client); - if ((stuff->readOnly != xTrue) && (stuff->readOnly != xFalse)) - { - client->errorValue = stuff->readOnly; - return(BadValue); - } - for (shmdesc = Shmsegs; - shmdesc && (shmdesc->shmid != stuff->shmid); - shmdesc = shmdesc->next) - ; - if (shmdesc) - { - if (!stuff->readOnly && !shmdesc->writable) - return BadAccess; - shmdesc->refcnt++; - } - else - { - shmdesc = xalloc(sizeof(ShmDescRec)); - if (!shmdesc) - return BadAlloc; - shmdesc->addr = shmat(stuff->shmid, 0, - stuff->readOnly ? SHM_RDONLY : 0); - if ((shmdesc->addr == ((char *)-1)) || - SHMSTAT(stuff->shmid, &buf)) - { - xfree(shmdesc); - return BadAccess; - } - - /* The attach was performed with root privs. We must - * do manual checking of access rights for the credentials - * of the client */ - - if (shm_access(client, &(SHM_PERM(buf)), stuff->readOnly) == -1) { - shmdt(shmdesc->addr); - xfree(shmdesc); - return BadAccess; - } - - shmdesc->shmid = stuff->shmid; - shmdesc->refcnt = 1; - shmdesc->writable = !stuff->readOnly; - shmdesc->size = SHM_SEGSZ(buf); - shmdesc->next = Shmsegs; - Shmsegs = shmdesc; - } - if (!AddResource(stuff->shmseg, ShmSegType, (pointer)shmdesc)) - return BadAlloc; - return(client->noClientException); -} - -/*ARGSUSED*/ -static int -ShmDetachSegment(pointer value, /* must conform to DeleteType */ - XID shmseg) -{ - ShmDescPtr shmdesc = (ShmDescPtr)value; - ShmDescPtr *prev; - - if (--shmdesc->refcnt) - return TRUE; -#ifndef _MSC_VER - shmdt(shmdesc->addr); -#endif - for (prev = &Shmsegs; *prev != shmdesc; prev = &(*prev)->next) - ; - *prev = shmdesc->next; - xfree(shmdesc); - return Success; -} - -static int -ProcShmDetach(ClientPtr client) -{ - ShmDescPtr shmdesc; - REQUEST(xShmDetachReq); - - REQUEST_SIZE_MATCH(xShmDetachReq); - VERIFY_SHMSEG(stuff->shmseg, shmdesc, client); - FreeResource(stuff->shmseg, RT_NONE); - return(client->noClientException); -} - -/* - * If the given request doesn't exactly match PutImage's constraints, - * wrap the image in a scratch pixmap header and let CopyArea sort it out. - */ -static void -doShmPutImage(DrawablePtr dst, GCPtr pGC, - int depth, unsigned int format, - int w, int h, int sx, int sy, int sw, int sh, int dx, int dy, - char *data) -{ - PixmapPtr pPixmap; - - pPixmap = GetScratchPixmapHeader(dst->pScreen, w, h, depth, - BitsPerPixel(depth), - PixmapBytePad(w, depth), - data); - if (!pPixmap) - return; - pGC->ops->CopyArea((DrawablePtr)pPixmap, dst, pGC, sx, sy, sw, sh, dx, dy); - FreeScratchPixmapHeader(pPixmap); -} - -#ifdef PANORAMIX -static int -ProcPanoramiXShmPutImage(ClientPtr client) -{ - int j, result, orig_x, orig_y; - PanoramiXRes *draw, *gc; - Bool sendEvent, isRoot; - - REQUEST(xShmPutImageReq); - REQUEST_SIZE_MATCH(xShmPutImageReq); - - result = dixLookupResourceByClass((pointer *)&draw, stuff->drawable, - XRC_DRAWABLE, client, DixWriteAccess); - if (result != Success) - return (result == BadValue) ? BadDrawable : result; - - result = dixLookupResourceByType((pointer *)&gc, stuff->gc, - XRT_GC, client, DixReadAccess); - if (result != Success) - return (result == BadValue) ? BadGC : result; - - isRoot = (draw->type == XRT_WINDOW) && draw->u.win.root; - - orig_x = stuff->dstX; - orig_y = stuff->dstY; - sendEvent = stuff->sendEvent; - stuff->sendEvent = 0; - FOR_NSCREENS(j) { - if(!j) stuff->sendEvent = sendEvent; - stuff->drawable = draw->info[j].id; - stuff->gc = gc->info[j].id; - if (isRoot) { - stuff->dstX = orig_x - panoramiXdataPtr[j].x; - stuff->dstY = orig_y - panoramiXdataPtr[j].y; - } - result = ProcShmPutImage(client); - if(result != client->noClientException) break; - } - return(result); -} - -static int -ProcPanoramiXShmGetImage(ClientPtr client) -{ - PanoramiXRes *draw; - DrawablePtr drawables[MAXSCREENS]; - DrawablePtr pDraw; - xShmGetImageReply xgi; - ShmDescPtr shmdesc; - int i, x, y, w, h, format, rc; - Mask plane = 0, planemask; - long lenPer = 0, length, widthBytesLine; - Bool isRoot; - - REQUEST(xShmGetImageReq); - - REQUEST_SIZE_MATCH(xShmGetImageReq); - - if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap)) { - client->errorValue = stuff->format; - return(BadValue); - } - - rc = dixLookupResourceByClass((pointer *)&draw, stuff->drawable, - XRC_DRAWABLE, client, DixWriteAccess); - if (rc != Success) - return (rc == BadValue) ? BadDrawable : rc; - - if (draw->type == XRT_PIXMAP) - return ProcShmGetImage(client); - - rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, - DixReadAccess); - if (rc != Success) - return rc; - - VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client); - - x = stuff->x; - y = stuff->y; - w = stuff->width; - h = stuff->height; - format = stuff->format; - planemask = stuff->planeMask; - - isRoot = (draw->type == XRT_WINDOW) && draw->u.win.root; - - if(isRoot) { - if( /* check for being onscreen */ - x < 0 || x + w > PanoramiXPixWidth || - y < 0 || y + h > PanoramiXPixHeight ) - return(BadMatch); - } else { - if( /* check for being onscreen */ - panoramiXdataPtr[0].x + pDraw->x + x < 0 || - panoramiXdataPtr[0].x + pDraw->x + x + w > PanoramiXPixWidth || - panoramiXdataPtr[0].y + pDraw->y + y < 0 || - panoramiXdataPtr[0].y + pDraw->y + y + h > PanoramiXPixHeight || - /* check for being inside of border */ - x < - wBorderWidth((WindowPtr)pDraw) || - x + w > wBorderWidth((WindowPtr)pDraw) + (int)pDraw->width || - y < -wBorderWidth((WindowPtr)pDraw) || - y + h > wBorderWidth ((WindowPtr)pDraw) + (int)pDraw->height) - return(BadMatch); - } - - drawables[0] = pDraw; - for(i = 1; i < PanoramiXNumScreens; i++) { - rc = dixLookupDrawable(drawables+i, draw->info[i].id, client, 0, - DixReadAccess); - if (rc != Success) - return rc; - } - - xgi.visual = wVisual(((WindowPtr)pDraw)); - xgi.type = X_Reply; - xgi.length = 0; - xgi.sequenceNumber = client->sequence; - xgi.depth = pDraw->depth; - - if(format == ZPixmap) { - widthBytesLine = PixmapBytePad(w, pDraw->depth); - length = widthBytesLine * h; - } else { - widthBytesLine = PixmapBytePad(w, 1); - lenPer = widthBytesLine * h; - plane = ((Mask)1) << (pDraw->depth - 1); - length = lenPer * Ones(planemask & (plane | (plane - 1))); - } - - VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client); - xgi.size = length; - - if (length == 0) {/* nothing to do */ } - else if (format == ZPixmap) { - XineramaGetImageData(drawables, x, y, w, h, format, planemask, - shmdesc->addr + stuff->offset, - widthBytesLine, isRoot); - } else { - - length = stuff->offset; - for (; plane; plane >>= 1) { - if (planemask & plane) { - XineramaGetImageData(drawables, x, y, w, h, - format, plane, shmdesc->addr + length, - widthBytesLine, isRoot); - length += lenPer; - } - } - } - - if (client->swapped) { - int n; - swaps(&xgi.sequenceNumber, n); - swapl(&xgi.length, n); - swapl(&xgi.visual, n); - swapl(&xgi.size, n); - } - WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi); - - return(client->noClientException); -} - -static int -ProcPanoramiXShmCreatePixmap(ClientPtr client) -{ - ScreenPtr pScreen = NULL; - PixmapPtr pMap = NULL; - DrawablePtr pDraw; - DepthPtr pDepth; - int i, j, result, rc; - ShmDescPtr shmdesc; - REQUEST(xShmCreatePixmapReq); - unsigned int width, height, depth; - unsigned long size; - PanoramiXRes *newPix; - - REQUEST_SIZE_MATCH(xShmCreatePixmapReq); - client->errorValue = stuff->pid; - if (!sharedPixmaps) - return BadImplementation; - LEGAL_NEW_RESOURCE(stuff->pid, client); - rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY, - DixGetAttrAccess); - if (rc != Success) - return rc; - - VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client); - - width = stuff->width; - height = stuff->height; - depth = stuff->depth; - if (!width || !height || !depth) - { - client->errorValue = 0; - return BadValue; - } - if (width > 32767 || height > 32767) - return BadAlloc; - - if (stuff->depth != 1) - { - pDepth = pDraw->pScreen->allowedDepths; - for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++) - if (pDepth->depth == stuff->depth) - goto CreatePmap; - client->errorValue = stuff->depth; - return BadValue; - } - -CreatePmap: - size = PixmapBytePad(width, depth) * height; - if (sizeof(size) == 4 && BitsPerPixel(depth) > 8) { - if (size < width * height) - return BadAlloc; - } - /* thankfully, offset is unsigned */ - if (stuff->offset + size < size) - return BadAlloc; - - VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client); - - if(!(newPix = xalloc(sizeof(PanoramiXRes)))) - return BadAlloc; - - newPix->type = XRT_PIXMAP; - newPix->u.pix.shared = TRUE; - newPix->info[0].id = stuff->pid; - for(j = 1; j < PanoramiXNumScreens; j++) - newPix->info[j].id = FakeClientID(client->index); - - result = (client->noClientException); - - FOR_NSCREENS(j) { - pScreen = screenInfo.screens[j]; - - pMap = (*shmFuncs[j]->CreatePixmap)(pScreen, - stuff->width, stuff->height, stuff->depth, - shmdesc->addr + stuff->offset); - - if (pMap) { - dixSetPrivate(&pMap->devPrivates, shmPixmapPrivate, shmdesc); - shmdesc->refcnt++; - pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER; - pMap->drawable.id = newPix->info[j].id; - if (!AddResource(newPix->info[j].id, RT_PIXMAP, (pointer)pMap)) { - (*pScreen->DestroyPixmap)(pMap); - result = BadAlloc; - break; - } - } else { - result = BadAlloc; - break; - } - } - - if(result == BadAlloc) { - while(j--) { - (*pScreen->DestroyPixmap)(pMap); - FreeResource(newPix->info[j].id, RT_NONE); - } - xfree(newPix); - } else - AddResource(stuff->pid, XRT_PIXMAP, newPix); - - return result; -} - -#endif - -static int -ProcShmPutImage(ClientPtr client) -{ - GCPtr pGC; - DrawablePtr pDraw; - long length; - ShmDescPtr shmdesc; - REQUEST(xShmPutImageReq); - - REQUEST_SIZE_MATCH(xShmPutImageReq); - VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); - VERIFY_SHMPTR(stuff->shmseg, stuff->offset, FALSE, shmdesc, client); - if ((stuff->sendEvent != xTrue) && (stuff->sendEvent != xFalse)) - return BadValue; - if (stuff->format == XYBitmap) - { - if (stuff->depth != 1) - return BadMatch; - length = PixmapBytePad(stuff->totalWidth, 1); - } - else if (stuff->format == XYPixmap) - { - if (pDraw->depth != stuff->depth) - return BadMatch; - length = PixmapBytePad(stuff->totalWidth, 1); - length *= stuff->depth; - } - else if (stuff->format == ZPixmap) - { - if (pDraw->depth != stuff->depth) - return BadMatch; - length = PixmapBytePad(stuff->totalWidth, stuff->depth); - } - else - { - client->errorValue = stuff->format; - return BadValue; - } - - /* - * There's a potential integer overflow in this check: - * VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight, - * client); - * the version below ought to avoid it - */ - if (stuff->totalHeight != 0 && - length > (shmdesc->size - stuff->offset)/stuff->totalHeight) { - client->errorValue = stuff->totalWidth; - return BadValue; - } - if (stuff->srcX > stuff->totalWidth) - { - client->errorValue = stuff->srcX; - return BadValue; - } - if (stuff->srcY > stuff->totalHeight) - { - client->errorValue = stuff->srcY; - return BadValue; - } - if ((stuff->srcX + stuff->srcWidth) > stuff->totalWidth) - { - client->errorValue = stuff->srcWidth; - return BadValue; - } - if ((stuff->srcY + stuff->srcHeight) > stuff->totalHeight) - { - client->errorValue = stuff->srcHeight; - return BadValue; - } - - if ((((stuff->format == ZPixmap) && (stuff->srcX == 0)) || - ((stuff->format != ZPixmap) && - (stuff->srcX < screenInfo.bitmapScanlinePad) && - ((stuff->format == XYBitmap) || - ((stuff->srcY == 0) && - (stuff->srcHeight == stuff->totalHeight))))) && - ((stuff->srcX + stuff->srcWidth) == stuff->totalWidth)) - (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth, - stuff->dstX, stuff->dstY, - stuff->totalWidth, stuff->srcHeight, - stuff->srcX, stuff->format, - shmdesc->addr + stuff->offset + - (stuff->srcY * length)); - else - doShmPutImage(pDraw, pGC, stuff->depth, stuff->format, - stuff->totalWidth, stuff->totalHeight, - stuff->srcX, stuff->srcY, - stuff->srcWidth, stuff->srcHeight, - stuff->dstX, stuff->dstY, - shmdesc->addr + stuff->offset); - - if (stuff->sendEvent) - { - xShmCompletionEvent ev; - - ev.type = ShmCompletionCode; - ev.drawable = stuff->drawable; - ev.sequenceNumber = client->sequence; - ev.minorEvent = X_ShmPutImage; - ev.majorEvent = ShmReqCode; - ev.shmseg = stuff->shmseg; - ev.offset = stuff->offset; - WriteEventsToClient(client, 1, (xEvent *) &ev); - } - - return (client->noClientException); -} - - - -static int -ProcShmGetImage(ClientPtr client) -{ - DrawablePtr pDraw; - long lenPer = 0, length; - Mask plane = 0; - xShmGetImageReply xgi; - ShmDescPtr shmdesc; - int n, rc; - - REQUEST(xShmGetImageReq); - - REQUEST_SIZE_MATCH(xShmGetImageReq); - if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap)) - { - client->errorValue = stuff->format; - return(BadValue); - } - rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, - DixReadAccess); - if (rc != Success) - return rc; - VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client); - if (pDraw->type == DRAWABLE_WINDOW) - { - if( /* check for being viewable */ - !((WindowPtr) pDraw)->realized || - /* check for being on screen */ - pDraw->x + stuff->x < 0 || - pDraw->x + stuff->x + (int)stuff->width > pDraw->pScreen->width || - pDraw->y + stuff->y < 0 || - pDraw->y + stuff->y + (int)stuff->height > pDraw->pScreen->height || - /* check for being inside of border */ - stuff->x < - wBorderWidth((WindowPtr)pDraw) || - stuff->x + (int)stuff->width > - wBorderWidth((WindowPtr)pDraw) + (int)pDraw->width || - stuff->y < -wBorderWidth((WindowPtr)pDraw) || - stuff->y + (int)stuff->height > - wBorderWidth((WindowPtr)pDraw) + (int)pDraw->height - ) - return(BadMatch); - xgi.visual = wVisual(((WindowPtr)pDraw)); - } - else - { - if (stuff->x < 0 || - stuff->x+(int)stuff->width > pDraw->width || - stuff->y < 0 || - stuff->y+(int)stuff->height > pDraw->height - ) - return(BadMatch); - xgi.visual = None; - } - xgi.type = X_Reply; - xgi.length = 0; - xgi.sequenceNumber = client->sequence; - xgi.depth = pDraw->depth; - if(stuff->format == ZPixmap) - { - length = PixmapBytePad(stuff->width, pDraw->depth) * stuff->height; - } - else - { - lenPer = PixmapBytePad(stuff->width, 1) * stuff->height; - plane = ((Mask)1) << (pDraw->depth - 1); - /* only planes asked for */ - length = lenPer * Ones(stuff->planeMask & (plane | (plane - 1))); - } - - VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client); - xgi.size = length; - - if (length == 0) - { - /* nothing to do */ - } - else if (stuff->format == ZPixmap) - { - (*pDraw->pScreen->GetImage)(pDraw, stuff->x, stuff->y, - stuff->width, stuff->height, - stuff->format, stuff->planeMask, - shmdesc->addr + stuff->offset); - } - else - { - - length = stuff->offset; - for (; plane; plane >>= 1) - { - if (stuff->planeMask & plane) - { - (*pDraw->pScreen->GetImage)(pDraw, - stuff->x, stuff->y, - stuff->width, stuff->height, - stuff->format, plane, - shmdesc->addr + length); - length += lenPer; - } - } - } - - if (client->swapped) { - swaps(&xgi.sequenceNumber, n); - swapl(&xgi.length, n); - swapl(&xgi.visual, n); - swapl(&xgi.size, n); - } - WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi); - - return(client->noClientException); -} - -static PixmapPtr -fbShmCreatePixmap (ScreenPtr pScreen, - int width, int height, int depth, char *addr) -{ - PixmapPtr pPixmap; - - pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0); - if (!pPixmap) - return NullPixmap; - - if (!(*pScreen->ModifyPixmapHeader)(pPixmap, width, height, depth, - BitsPerPixel(depth), PixmapBytePad(width, depth), (pointer)addr)) { - (*pScreen->DestroyPixmap)(pPixmap); - return NullPixmap; - } - return pPixmap; -} - -static int -ProcShmCreatePixmap(ClientPtr client) -{ - PixmapPtr pMap; - DrawablePtr pDraw; - DepthPtr pDepth; - int i, rc; - ShmDescPtr shmdesc; - REQUEST(xShmCreatePixmapReq); - unsigned int width, height, depth; - unsigned long size; - - REQUEST_SIZE_MATCH(xShmCreatePixmapReq); - client->errorValue = stuff->pid; - if (!sharedPixmaps) - return BadImplementation; - LEGAL_NEW_RESOURCE(stuff->pid, client); - rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY, - DixGetAttrAccess); - if (rc != Success) - return rc; - - VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client); - - width = stuff->width; - height = stuff->height; - depth = stuff->depth; - if (!width || !height || !depth) - { - client->errorValue = 0; - return BadValue; - } - if (width > 32767 || height > 32767) - return BadAlloc; - - if (stuff->depth != 1) - { - pDepth = pDraw->pScreen->allowedDepths; - for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++) - if (pDepth->depth == stuff->depth) - goto CreatePmap; - client->errorValue = stuff->depth; - return BadValue; - } - -CreatePmap: - size = PixmapBytePad(width, depth) * height; - if (sizeof(size) == 4 && BitsPerPixel(depth) > 8) { - if (size < width * height) - return BadAlloc; - } - /* thankfully, offset is unsigned */ - if (stuff->offset + size < size) - return BadAlloc; - - VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client); - pMap = (*shmFuncs[pDraw->pScreen->myNum]->CreatePixmap)( - pDraw->pScreen, stuff->width, - stuff->height, stuff->depth, - shmdesc->addr + stuff->offset); - if (pMap) - { - rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP, - pMap, RT_NONE, NULL, DixCreateAccess); - if (rc != Success) { - pDraw->pScreen->DestroyPixmap(pMap); - return rc; - } - dixSetPrivate(&pMap->devPrivates, shmPixmapPrivate, shmdesc); - shmdesc->refcnt++; - pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER; - pMap->drawable.id = stuff->pid; - if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap)) - { - return(client->noClientException); - } - pDraw->pScreen->DestroyPixmap(pMap); - } - return (BadAlloc); -} - -static int -ProcShmDispatch (ClientPtr client) -{ - REQUEST(xReq); - switch (stuff->data) - { - case X_ShmQueryVersion: - return ProcShmQueryVersion(client); - case X_ShmAttach: - return ProcShmAttach(client); - case X_ShmDetach: - return ProcShmDetach(client); - case X_ShmPutImage: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShmPutImage(client); -#endif - return ProcShmPutImage(client); - case X_ShmGetImage: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShmGetImage(client); -#endif - return ProcShmGetImage(client); - case X_ShmCreatePixmap: -#ifdef PANORAMIX - if ( !noPanoramiXExtension ) - return ProcPanoramiXShmCreatePixmap(client); -#endif - return ProcShmCreatePixmap(client); - default: - return BadRequest; - } -} - -static void -SShmCompletionEvent(xShmCompletionEvent *from, xShmCompletionEvent *to) -{ - to->type = from->type; - cpswaps(from->sequenceNumber, to->sequenceNumber); - cpswapl(from->drawable, to->drawable); - cpswaps(from->minorEvent, to->minorEvent); - to->majorEvent = from->majorEvent; - cpswapl(from->shmseg, to->shmseg); - cpswapl(from->offset, to->offset); -} - -static int -SProcShmQueryVersion(ClientPtr client) -{ - int n; - REQUEST(xShmQueryVersionReq); - - swaps(&stuff->length, n); - return ProcShmQueryVersion(client); -} - -static int -SProcShmAttach(ClientPtr client) -{ - int n; - REQUEST(xShmAttachReq); - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xShmAttachReq); - swapl(&stuff->shmseg, n); - swapl(&stuff->shmid, n); - return ProcShmAttach(client); -} - -static int -SProcShmDetach(ClientPtr client) -{ - int n; - REQUEST(xShmDetachReq); - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xShmDetachReq); - swapl(&stuff->shmseg, n); - return ProcShmDetach(client); -} - -static int -SProcShmPutImage(ClientPtr client) -{ - int n; - REQUEST(xShmPutImageReq); - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xShmPutImageReq); - swapl(&stuff->drawable, n); - swapl(&stuff->gc, n); - swaps(&stuff->totalWidth, n); - swaps(&stuff->totalHeight, n); - swaps(&stuff->srcX, n); - swaps(&stuff->srcY, n); - swaps(&stuff->srcWidth, n); - swaps(&stuff->srcHeight, n); - swaps(&stuff->dstX, n); - swaps(&stuff->dstY, n); - swapl(&stuff->shmseg, n); - swapl(&stuff->offset, n); - return ProcShmPutImage(client); -} - -static int -SProcShmGetImage(ClientPtr client) -{ - int n; - REQUEST(xShmGetImageReq); - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xShmGetImageReq); - swapl(&stuff->drawable, n); - swaps(&stuff->x, n); - swaps(&stuff->y, n); - swaps(&stuff->width, n); - swaps(&stuff->height, n); - swapl(&stuff->planeMask, n); - swapl(&stuff->shmseg, n); - swapl(&stuff->offset, n); - return ProcShmGetImage(client); -} - -static int -SProcShmCreatePixmap(ClientPtr client) -{ - int n; - REQUEST(xShmCreatePixmapReq); - swaps(&stuff->length, n); - REQUEST_SIZE_MATCH(xShmCreatePixmapReq); - swapl(&stuff->pid, n); - swapl(&stuff->drawable, n); - swaps(&stuff->width, n); - swaps(&stuff->height, n); - swapl(&stuff->shmseg, n); - swapl(&stuff->offset, n); - return ProcShmCreatePixmap(client); -} - -static int -SProcShmDispatch (ClientPtr client) -{ - REQUEST(xReq); - switch (stuff->data) - { - case X_ShmQueryVersion: - return SProcShmQueryVersion(client); - case X_ShmAttach: - return SProcShmAttach(client); - case X_ShmDetach: - return SProcShmDetach(client); - case X_ShmPutImage: - return SProcShmPutImage(client); - case X_ShmGetImage: - return SProcShmGetImage(client); - case X_ShmCreatePixmap: - return SProcShmCreatePixmap(client); - default: - return BadRequest; - } -} +/************************************************************
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+********************************************************/
+
+/* THIS IS NOT AN X CONSORTIUM STANDARD OR AN X PROJECT TEAM SPECIFICATION */
+
+
+#define SHM
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <sys/types.h>
+#if !defined(_MSC_VER)
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#endif
+#include <unistd.h>
+#include <sys/stat.h>
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "misc.h"
+#include "os.h"
+#include "dixstruct.h"
+#include "resource.h"
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include "pixmapstr.h"
+#include "gcstruct.h"
+#include "extnsionst.h"
+#include "servermd.h"
+#include "shmint.h"
+#include "xace.h"
+#include <X11/extensions/shmproto.h>
+#include <X11/Xfuncproto.h>
+#include "protocol-versions.h"
+
+/* Needed for Solaris cross-zone shared memory extension */
+#ifdef HAVE_SHMCTL64
+#include <sys/ipc_impl.h>
+#define SHMSTAT(id, buf) shmctl64(id, IPC_STAT64, buf)
+#define SHMSTAT_TYPE struct shmid_ds64
+#define SHMPERM_TYPE struct ipc_perm64
+#define SHM_PERM(buf) buf.shmx_perm
+#define SHM_SEGSZ(buf) buf.shmx_segsz
+#define SHMPERM_UID(p) p->ipcx_uid
+#define SHMPERM_CUID(p) p->ipcx_cuid
+#define SHMPERM_GID(p) p->ipcx_gid
+#define SHMPERM_CGID(p) p->ipcx_cgid
+#define SHMPERM_MODE(p) p->ipcx_mode
+#define SHMPERM_ZONEID(p) p->ipcx_zoneid
+#else
+#define SHMSTAT(id, buf) shmctl(id, IPC_STAT, buf)
+#define SHMSTAT_TYPE struct shmid_ds
+#define SHMPERM_TYPE struct ipc_perm
+#define SHM_PERM(buf) buf.shm_perm
+#define SHM_SEGSZ(buf) buf.shm_segsz
+#define SHMPERM_UID(p) p->uid
+#define SHMPERM_CUID(p) p->cuid
+#define SHMPERM_GID(p) p->gid
+#define SHMPERM_CGID(p) p->cgid
+#define SHMPERM_MODE(p) p->mode
+#endif
+
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
+
+#include "modinit.h"
+
+typedef struct _ShmDesc {
+ struct _ShmDesc *next;
+ int shmid;
+ int refcnt;
+ char *addr;
+ Bool writable;
+ unsigned long size;
+} ShmDescRec, *ShmDescPtr;
+
+static PixmapPtr fbShmCreatePixmap(XSHM_CREATE_PIXMAP_ARGS);
+static int ShmDetachSegment(
+ pointer /* value */,
+ XID /* shmseg */
+ );
+static void ShmResetProc(
+ ExtensionEntry * /* extEntry */
+ );
+static void SShmCompletionEvent(
+ xShmCompletionEvent * /* from */,
+ xShmCompletionEvent * /* to */
+ );
+
+static Bool ShmDestroyPixmap (PixmapPtr pPixmap);
+
+static DISPATCH_PROC(ProcShmAttach);
+static DISPATCH_PROC(ProcShmCreatePixmap);
+static DISPATCH_PROC(ProcShmDetach);
+static DISPATCH_PROC(ProcShmDispatch);
+static DISPATCH_PROC(ProcShmGetImage);
+static DISPATCH_PROC(ProcShmPutImage);
+static DISPATCH_PROC(ProcShmQueryVersion);
+static DISPATCH_PROC(SProcShmAttach);
+static DISPATCH_PROC(SProcShmCreatePixmap);
+static DISPATCH_PROC(SProcShmDetach);
+static DISPATCH_PROC(SProcShmDispatch);
+static DISPATCH_PROC(SProcShmGetImage);
+static DISPATCH_PROC(SProcShmPutImage);
+static DISPATCH_PROC(SProcShmQueryVersion);
+
+static unsigned char ShmReqCode;
+int ShmCompletionCode;
+int BadShmSegCode;
+RESTYPE ShmSegType;
+static ShmDescPtr Shmsegs;
+static Bool sharedPixmaps;
+static ShmFuncsPtr shmFuncs[MAXSCREENS];
+static DestroyPixmapProcPtr destroyPixmap[MAXSCREENS];
+static int shmPixmapPrivateIndex;
+static DevPrivateKey shmPixmapPrivate = &shmPixmapPrivateIndex;
+static ShmFuncs miFuncs = {NULL, NULL};
+static ShmFuncs fbFuncs = {fbShmCreatePixmap, NULL};
+
+#define VERIFY_SHMSEG(shmseg,shmdesc,client) \
+{ \
+ int rc; \
+ rc = dixLookupResourceByType((pointer *)&(shmdesc), shmseg, ShmSegType, \
+ client, DixReadAccess); \
+ if (rc != Success) \
+ return (rc == BadValue) ? BadShmSegCode : rc; \
+}
+
+#define VERIFY_SHMPTR(shmseg,offset,needwrite,shmdesc,client) \
+{ \
+ VERIFY_SHMSEG(shmseg, shmdesc, client); \
+ if ((offset & 3) || (offset > shmdesc->size)) \
+ { \
+ client->errorValue = offset; \
+ return BadValue; \
+ } \
+ if (needwrite && !shmdesc->writable) \
+ return BadAccess; \
+}
+
+#define VERIFY_SHMSIZE(shmdesc,offset,len,client) \
+{ \
+ if ((offset + len) > shmdesc->size) \
+ { \
+ return BadAccess; \
+ } \
+}
+
+
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__) || defined(__DragonFly__)
+#include <sys/signal.h>
+
+static Bool badSysCall = FALSE;
+
+static void
+SigSysHandler(int signo)
+{
+ badSysCall = TRUE;
+}
+
+static Bool CheckForShmSyscall(void)
+{
+ void (*oldHandler)();
+ int shmid = -1;
+
+ /* If no SHM support in the kernel, the bad syscall will generate SIGSYS */
+ oldHandler = signal(SIGSYS, SigSysHandler);
+
+ badSysCall = FALSE;
+ shmid = shmget(IPC_PRIVATE, 4096, IPC_CREAT);
+
+ if (shmid != -1)
+ {
+ /* Successful allocation - clean up */
+ shmctl(shmid, IPC_RMID, NULL);
+ }
+ else
+ {
+ /* Allocation failed */
+ badSysCall = TRUE;
+ }
+ signal(SIGSYS, oldHandler);
+ return(!badSysCall);
+}
+
+#define MUST_CHECK_FOR_SHM_SYSCALL
+
+#endif
+
+void
+ShmExtensionInit(INITARGS)
+{
+ ExtensionEntry *extEntry;
+ int i;
+
+#ifdef MUST_CHECK_FOR_SHM_SYSCALL
+ if (!CheckForShmSyscall())
+ {
+ ErrorF("MIT-SHM extension disabled due to lack of kernel support\n");
+ return;
+ }
+#endif
+
+ sharedPixmaps = xFalse;
+ {
+ sharedPixmaps = xTrue;
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ if (!shmFuncs[i])
+ shmFuncs[i] = &miFuncs;
+ if (!shmFuncs[i]->CreatePixmap)
+ sharedPixmaps = xFalse;
+ }
+ if (sharedPixmaps)
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ destroyPixmap[i] = screenInfo.screens[i]->DestroyPixmap;
+ screenInfo.screens[i]->DestroyPixmap = ShmDestroyPixmap;
+ }
+ }
+ ShmSegType = CreateNewResourceType(ShmDetachSegment);
+ if (ShmSegType &&
+ (extEntry = AddExtension(SHMNAME, ShmNumberEvents, ShmNumberErrors,
+ ProcShmDispatch, SProcShmDispatch,
+ ShmResetProc, StandardMinorOpcode)))
+ {
+ ShmReqCode = (unsigned char)extEntry->base;
+ ShmCompletionCode = extEntry->eventBase;
+ BadShmSegCode = extEntry->errorBase;
+ EventSwapVector[ShmCompletionCode] = (EventSwapPtr) SShmCompletionEvent;
+ }
+}
+
+/*ARGSUSED*/
+static void
+ShmResetProc(ExtensionEntry *extEntry)
+{
+ int i;
+
+ for (i = 0; i < MAXSCREENS; i++)
+ {
+ shmFuncs[i] = NULL;
+ }
+}
+
+void
+ShmRegisterFuncs(ScreenPtr pScreen, ShmFuncsPtr funcs)
+{
+ shmFuncs[pScreen->myNum] = funcs;
+}
+
+static Bool
+ShmDestroyPixmap (PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ Bool ret;
+ if (pPixmap->refcnt == 1)
+ {
+ ShmDescPtr shmdesc;
+ shmdesc = (ShmDescPtr)dixLookupPrivate(&pPixmap->devPrivates,
+ shmPixmapPrivate);
+ if (shmdesc)
+ ShmDetachSegment ((pointer) shmdesc, pPixmap->drawable.id);
+ }
+
+ pScreen->DestroyPixmap = destroyPixmap[pScreen->myNum];
+ ret = (*pScreen->DestroyPixmap) (pPixmap);
+ destroyPixmap[pScreen->myNum] = pScreen->DestroyPixmap;
+ pScreen->DestroyPixmap = ShmDestroyPixmap;
+ return ret;
+}
+
+void
+ShmRegisterFbFuncs(ScreenPtr pScreen)
+{
+ shmFuncs[pScreen->myNum] = &fbFuncs;
+}
+
+static int
+ProcShmQueryVersion(ClientPtr client)
+{
+ xShmQueryVersionReply rep;
+ int n;
+
+ REQUEST_SIZE_MATCH(xShmQueryVersionReq);
+ memset(&rep, 0, sizeof(xShmQueryVersionReply));
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.sharedPixmaps = sharedPixmaps;
+ rep.pixmapFormat = sharedPixmaps ? ZPixmap : 0;
+ rep.majorVersion = SERVER_SHM_MAJOR_VERSION;
+ rep.minorVersion = SERVER_SHM_MINOR_VERSION;
+#ifndef _MSC_VER
+ rep.uid = geteuid();
+ rep.gid = getegid();
+#endif
+ if (client->swapped) {
+ swaps(&rep.sequenceNumber, n);
+ swapl(&rep.length, n);
+ swaps(&rep.majorVersion, n);
+ swaps(&rep.minorVersion, n);
+ swaps(&rep.uid, n);
+ swaps(&rep.gid, n);
+ }
+ WriteToClient(client, sizeof(xShmQueryVersionReply), (char *)&rep);
+ return (client->noClientException);
+}
+
+/*
+ * Simulate the access() system call for a shared memory segement,
+ * using the credentials from the client if available
+ */
+static int
+shm_access(ClientPtr client, SHMPERM_TYPE *perm, int readonly)
+{
+ int uid, gid;
+ mode_t mask;
+ int uidset = 0, gidset = 0;
+ LocalClientCredRec *lcc;
+
+ if (GetLocalClientCreds(client, &lcc) != -1) {
+
+ if (lcc->fieldsSet & LCC_UID_SET) {
+ uid = lcc->euid;
+ uidset = 1;
+ }
+ if (lcc->fieldsSet & LCC_GID_SET) {
+ gid = lcc->egid;
+ gidset = 1;
+ }
+
+#if defined(HAVE_GETZONEID) && defined(SHMPERM_ZONEID)
+ if ( ((lcc->fieldsSet & LCC_ZID_SET) == 0) || (lcc->zoneid == -1)
+ || (lcc->zoneid != SHMPERM_ZONEID(perm))) {
+ uidset = 0;
+ gidset = 0;
+ }
+#endif
+ FreeLocalClientCreds(lcc);
+
+ if (uidset) {
+ /* User id 0 always gets access */
+ if (uid == 0) {
+ return 0;
+ }
+ #ifdef _MSC_VER
+ __asm int 3;
+ #else
+ /* Check the owner */
+ if (SHMPERM_UID(perm) == uid || SHMPERM_CUID(perm) == uid) {
+ mask = S_IRUSR;
+ if (!readonly) {
+ mask |= S_IWUSR;
+ }
+ return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
+ }
+ #endif
+ }
+
+ if (gidset) {
+ /* Check the group */
+ #ifdef _MSC_VER
+ __asm int 3;
+ #else
+ if (SHMPERM_GID(perm) == gid || SHMPERM_CGID(perm) == gid) {
+ mask = S_IRGRP;
+ if (!readonly) {
+ mask |= S_IWGRP;
+ }
+ return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
+ }
+ #endif
+ }
+ }
+ #ifdef _MSC_VER
+ __asm int 3;
+ return -1;
+ #else
+ /* Otherwise, check everyone else */
+ mask = S_IROTH;
+ if (!readonly) {
+ mask |= S_IWOTH;
+ }
+ return (SHMPERM_MODE(perm) & mask) == mask ? 0 : -1;
+ #endif
+}
+
+static int
+ProcShmAttach(ClientPtr client)
+{
+ SHMSTAT_TYPE buf;
+ ShmDescPtr shmdesc;
+ REQUEST(xShmAttachReq);
+
+ REQUEST_SIZE_MATCH(xShmAttachReq);
+ LEGAL_NEW_RESOURCE(stuff->shmseg, client);
+ if ((stuff->readOnly != xTrue) && (stuff->readOnly != xFalse))
+ {
+ client->errorValue = stuff->readOnly;
+ return(BadValue);
+ }
+ for (shmdesc = Shmsegs;
+ shmdesc && (shmdesc->shmid != stuff->shmid);
+ shmdesc = shmdesc->next)
+ ;
+ if (shmdesc)
+ {
+ if (!stuff->readOnly && !shmdesc->writable)
+ return BadAccess;
+ shmdesc->refcnt++;
+ }
+ else
+ {
+ shmdesc = xalloc(sizeof(ShmDescRec));
+ if (!shmdesc)
+ return BadAlloc;
+ shmdesc->addr = shmat(stuff->shmid, 0,
+ stuff->readOnly ? SHM_RDONLY : 0);
+ if ((shmdesc->addr == ((char *)-1)) ||
+ SHMSTAT(stuff->shmid, &buf))
+ {
+ xfree(shmdesc);
+ return BadAccess;
+ }
+
+ /* The attach was performed with root privs. We must
+ * do manual checking of access rights for the credentials
+ * of the client */
+
+ if (shm_access(client, &(SHM_PERM(buf)), stuff->readOnly) == -1) {
+ shmdt(shmdesc->addr);
+ xfree(shmdesc);
+ return BadAccess;
+ }
+
+ shmdesc->shmid = stuff->shmid;
+ shmdesc->refcnt = 1;
+ shmdesc->writable = !stuff->readOnly;
+ shmdesc->size = SHM_SEGSZ(buf);
+ shmdesc->next = Shmsegs;
+ Shmsegs = shmdesc;
+ }
+ if (!AddResource(stuff->shmseg, ShmSegType, (pointer)shmdesc))
+ return BadAlloc;
+ return(client->noClientException);
+}
+
+/*ARGSUSED*/
+static int
+ShmDetachSegment(pointer value, /* must conform to DeleteType */
+ XID shmseg)
+{
+ ShmDescPtr shmdesc = (ShmDescPtr)value;
+ ShmDescPtr *prev;
+
+ if (--shmdesc->refcnt)
+ return TRUE;
+#ifndef _MSC_VER
+ shmdt(shmdesc->addr);
+#endif
+ for (prev = &Shmsegs; *prev != shmdesc; prev = &(*prev)->next)
+ ;
+ *prev = shmdesc->next;
+ xfree(shmdesc);
+ return Success;
+}
+
+static int
+ProcShmDetach(ClientPtr client)
+{
+ ShmDescPtr shmdesc;
+ REQUEST(xShmDetachReq);
+
+ REQUEST_SIZE_MATCH(xShmDetachReq);
+ VERIFY_SHMSEG(stuff->shmseg, shmdesc, client);
+ FreeResource(stuff->shmseg, RT_NONE);
+ return(client->noClientException);
+}
+
+/*
+ * If the given request doesn't exactly match PutImage's constraints,
+ * wrap the image in a scratch pixmap header and let CopyArea sort it out.
+ */
+static void
+doShmPutImage(DrawablePtr dst, GCPtr pGC,
+ int depth, unsigned int format,
+ int w, int h, int sx, int sy, int sw, int sh, int dx, int dy,
+ char *data)
+{
+ PixmapPtr pPixmap;
+
+ pPixmap = GetScratchPixmapHeader(dst->pScreen, w, h, depth,
+ BitsPerPixel(depth),
+ PixmapBytePad(w, depth),
+ data);
+ if (!pPixmap)
+ return;
+ pGC->ops->CopyArea((DrawablePtr)pPixmap, dst, pGC, sx, sy, sw, sh, dx, dy);
+ FreeScratchPixmapHeader(pPixmap);
+}
+
+#ifdef PANORAMIX
+static int
+ProcPanoramiXShmPutImage(ClientPtr client)
+{
+ int j, result, orig_x, orig_y;
+ PanoramiXRes *draw, *gc;
+ Bool sendEvent, isRoot;
+
+ REQUEST(xShmPutImageReq);
+ REQUEST_SIZE_MATCH(xShmPutImageReq);
+
+ result = dixLookupResourceByClass((pointer *)&draw, stuff->drawable,
+ XRC_DRAWABLE, client, DixWriteAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadDrawable : result;
+
+ result = dixLookupResourceByType((pointer *)&gc, stuff->gc,
+ XRT_GC, client, DixReadAccess);
+ if (result != Success)
+ return (result == BadValue) ? BadGC : result;
+
+ isRoot = (draw->type == XRT_WINDOW) && draw->u.win.root;
+
+ orig_x = stuff->dstX;
+ orig_y = stuff->dstY;
+ sendEvent = stuff->sendEvent;
+ stuff->sendEvent = 0;
+ FOR_NSCREENS(j) {
+ if(!j) stuff->sendEvent = sendEvent;
+ stuff->drawable = draw->info[j].id;
+ stuff->gc = gc->info[j].id;
+ if (isRoot) {
+ stuff->dstX = orig_x - panoramiXdataPtr[j].x;
+ stuff->dstY = orig_y - panoramiXdataPtr[j].y;
+ }
+ result = ProcShmPutImage(client);
+ if(result != client->noClientException) break;
+ }
+ return(result);
+}
+
+static int
+ProcPanoramiXShmGetImage(ClientPtr client)
+{
+ PanoramiXRes *draw;
+ DrawablePtr drawables[MAXSCREENS];
+ DrawablePtr pDraw;
+ xShmGetImageReply xgi;
+ ShmDescPtr shmdesc;
+ int i, x, y, w, h, format, rc;
+ Mask plane = 0, planemask;
+ long lenPer = 0, length, widthBytesLine;
+ Bool isRoot;
+
+ REQUEST(xShmGetImageReq);
+
+ REQUEST_SIZE_MATCH(xShmGetImageReq);
+
+ if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap)) {
+ client->errorValue = stuff->format;
+ return(BadValue);
+ }
+
+ rc = dixLookupResourceByClass((pointer *)&draw, stuff->drawable,
+ XRC_DRAWABLE, client, DixWriteAccess);
+ if (rc != Success)
+ return (rc == BadValue) ? BadDrawable : rc;
+
+ if (draw->type == XRT_PIXMAP)
+ return ProcShmGetImage(client);
+
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
+ DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
+
+ x = stuff->x;
+ y = stuff->y;
+ w = stuff->width;
+ h = stuff->height;
+ format = stuff->format;
+ planemask = stuff->planeMask;
+
+ isRoot = (draw->type == XRT_WINDOW) && draw->u.win.root;
+
+ if(isRoot) {
+ if( /* check for being onscreen */
+ x < 0 || x + w > PanoramiXPixWidth ||
+ y < 0 || y + h > PanoramiXPixHeight )
+ return(BadMatch);
+ } else {
+ if( /* check for being onscreen */
+ panoramiXdataPtr[0].x + pDraw->x + x < 0 ||
+ panoramiXdataPtr[0].x + pDraw->x + x + w > PanoramiXPixWidth ||
+ panoramiXdataPtr[0].y + pDraw->y + y < 0 ||
+ panoramiXdataPtr[0].y + pDraw->y + y + h > PanoramiXPixHeight ||
+ /* check for being inside of border */
+ x < - wBorderWidth((WindowPtr)pDraw) ||
+ x + w > wBorderWidth((WindowPtr)pDraw) + (int)pDraw->width ||
+ y < -wBorderWidth((WindowPtr)pDraw) ||
+ y + h > wBorderWidth ((WindowPtr)pDraw) + (int)pDraw->height)
+ return(BadMatch);
+ }
+
+ drawables[0] = pDraw;
+ for(i = 1; i < PanoramiXNumScreens; i++) {
+ rc = dixLookupDrawable(drawables+i, draw->info[i].id, client, 0,
+ DixReadAccess);
+ if (rc != Success)
+ return rc;
+ }
+
+ xgi.visual = wVisual(((WindowPtr)pDraw));
+ xgi.type = X_Reply;
+ xgi.length = 0;
+ xgi.sequenceNumber = client->sequence;
+ xgi.depth = pDraw->depth;
+
+ if(format == ZPixmap) {
+ widthBytesLine = PixmapBytePad(w, pDraw->depth);
+ length = widthBytesLine * h;
+ } else {
+ widthBytesLine = PixmapBytePad(w, 1);
+ lenPer = widthBytesLine * h;
+ plane = ((Mask)1) << (pDraw->depth - 1);
+ length = lenPer * Ones(planemask & (plane | (plane - 1)));
+ }
+
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client);
+ xgi.size = length;
+
+ if (length == 0) {/* nothing to do */ }
+ else if (format == ZPixmap) {
+ XineramaGetImageData(drawables, x, y, w, h, format, planemask,
+ shmdesc->addr + stuff->offset,
+ widthBytesLine, isRoot);
+ } else {
+
+ length = stuff->offset;
+ for (; plane; plane >>= 1) {
+ if (planemask & plane) {
+ XineramaGetImageData(drawables, x, y, w, h,
+ format, plane, shmdesc->addr + length,
+ widthBytesLine, isRoot);
+ length += lenPer;
+ }
+ }
+ }
+
+ if (client->swapped) {
+ int n;
+ swaps(&xgi.sequenceNumber, n);
+ swapl(&xgi.length, n);
+ swapl(&xgi.visual, n);
+ swapl(&xgi.size, n);
+ }
+ WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi);
+
+ return(client->noClientException);
+}
+
+static int
+ProcPanoramiXShmCreatePixmap(ClientPtr client)
+{
+ ScreenPtr pScreen = NULL;
+ PixmapPtr pMap = NULL;
+ DrawablePtr pDraw;
+ DepthPtr pDepth;
+ int i, j, result, rc;
+ ShmDescPtr shmdesc;
+ REQUEST(xShmCreatePixmapReq);
+ unsigned int width, height, depth;
+ unsigned long size;
+ PanoramiXRes *newPix;
+
+ REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
+ client->errorValue = stuff->pid;
+ if (!sharedPixmaps)
+ return BadImplementation;
+ LEGAL_NEW_RESOURCE(stuff->pid, client);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
+
+ width = stuff->width;
+ height = stuff->height;
+ depth = stuff->depth;
+ if (!width || !height || !depth)
+ {
+ client->errorValue = 0;
+ return BadValue;
+ }
+ if (width > 32767 || height > 32767)
+ return BadAlloc;
+
+ if (stuff->depth != 1)
+ {
+ pDepth = pDraw->pScreen->allowedDepths;
+ for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++)
+ if (pDepth->depth == stuff->depth)
+ goto CreatePmap;
+ client->errorValue = stuff->depth;
+ return BadValue;
+ }
+
+CreatePmap:
+ size = PixmapBytePad(width, depth) * height;
+ if (sizeof(size) == 4 && BitsPerPixel(depth) > 8) {
+ if (size < width * height)
+ return BadAlloc;
+ }
+ /* thankfully, offset is unsigned */
+ if (stuff->offset + size < size)
+ return BadAlloc;
+
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client);
+
+ if(!(newPix = xalloc(sizeof(PanoramiXRes))))
+ return BadAlloc;
+
+ newPix->type = XRT_PIXMAP;
+ newPix->u.pix.shared = TRUE;
+ newPix->info[0].id = stuff->pid;
+ for(j = 1; j < PanoramiXNumScreens; j++)
+ newPix->info[j].id = FakeClientID(client->index);
+
+ result = (client->noClientException);
+
+ FOR_NSCREENS(j) {
+ pScreen = screenInfo.screens[j];
+
+ pMap = (*shmFuncs[j]->CreatePixmap)(pScreen,
+ stuff->width, stuff->height, stuff->depth,
+ shmdesc->addr + stuff->offset);
+
+ if (pMap) {
+ dixSetPrivate(&pMap->devPrivates, shmPixmapPrivate, shmdesc);
+ shmdesc->refcnt++;
+ pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pMap->drawable.id = newPix->info[j].id;
+ if (!AddResource(newPix->info[j].id, RT_PIXMAP, (pointer)pMap)) {
+ (*pScreen->DestroyPixmap)(pMap);
+ result = BadAlloc;
+ break;
+ }
+ } else {
+ result = BadAlloc;
+ break;
+ }
+ }
+
+ if(result == BadAlloc) {
+ while(j--) {
+ (*pScreen->DestroyPixmap)(pMap);
+ FreeResource(newPix->info[j].id, RT_NONE);
+ }
+ xfree(newPix);
+ } else
+ AddResource(stuff->pid, XRT_PIXMAP, newPix);
+
+ return result;
+}
+
+#endif
+
+static int
+ProcShmPutImage(ClientPtr client)
+{
+ GCPtr pGC;
+ DrawablePtr pDraw;
+ long length;
+ ShmDescPtr shmdesc;
+ REQUEST(xShmPutImageReq);
+
+ REQUEST_SIZE_MATCH(xShmPutImageReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ VERIFY_SHMPTR(stuff->shmseg, stuff->offset, FALSE, shmdesc, client);
+ if ((stuff->sendEvent != xTrue) && (stuff->sendEvent != xFalse))
+ return BadValue;
+ if (stuff->format == XYBitmap)
+ {
+ if (stuff->depth != 1)
+ return BadMatch;
+ length = PixmapBytePad(stuff->totalWidth, 1);
+ }
+ else if (stuff->format == XYPixmap)
+ {
+ if (pDraw->depth != stuff->depth)
+ return BadMatch;
+ length = PixmapBytePad(stuff->totalWidth, 1);
+ length *= stuff->depth;
+ }
+ else if (stuff->format == ZPixmap)
+ {
+ if (pDraw->depth != stuff->depth)
+ return BadMatch;
+ length = PixmapBytePad(stuff->totalWidth, stuff->depth);
+ }
+ else
+ {
+ client->errorValue = stuff->format;
+ return BadValue;
+ }
+
+ /*
+ * There's a potential integer overflow in this check:
+ * VERIFY_SHMSIZE(shmdesc, stuff->offset, length * stuff->totalHeight,
+ * client);
+ * the version below ought to avoid it
+ */
+ if (stuff->totalHeight != 0 &&
+ length > (shmdesc->size - stuff->offset)/stuff->totalHeight) {
+ client->errorValue = stuff->totalWidth;
+ return BadValue;
+ }
+ if (stuff->srcX > stuff->totalWidth)
+ {
+ client->errorValue = stuff->srcX;
+ return BadValue;
+ }
+ if (stuff->srcY > stuff->totalHeight)
+ {
+ client->errorValue = stuff->srcY;
+ return BadValue;
+ }
+ if ((stuff->srcX + stuff->srcWidth) > stuff->totalWidth)
+ {
+ client->errorValue = stuff->srcWidth;
+ return BadValue;
+ }
+ if ((stuff->srcY + stuff->srcHeight) > stuff->totalHeight)
+ {
+ client->errorValue = stuff->srcHeight;
+ return BadValue;
+ }
+
+ if ((((stuff->format == ZPixmap) && (stuff->srcX == 0)) ||
+ ((stuff->format != ZPixmap) &&
+ (stuff->srcX < screenInfo.bitmapScanlinePad) &&
+ ((stuff->format == XYBitmap) ||
+ ((stuff->srcY == 0) &&
+ (stuff->srcHeight == stuff->totalHeight))))) &&
+ ((stuff->srcX + stuff->srcWidth) == stuff->totalWidth))
+ (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth,
+ stuff->dstX, stuff->dstY,
+ stuff->totalWidth, stuff->srcHeight,
+ stuff->srcX, stuff->format,
+ shmdesc->addr + stuff->offset +
+ (stuff->srcY * length));
+ else
+ doShmPutImage(pDraw, pGC, stuff->depth, stuff->format,
+ stuff->totalWidth, stuff->totalHeight,
+ stuff->srcX, stuff->srcY,
+ stuff->srcWidth, stuff->srcHeight,
+ stuff->dstX, stuff->dstY,
+ shmdesc->addr + stuff->offset);
+
+ if (stuff->sendEvent)
+ {
+ xShmCompletionEvent ev;
+
+ ev.type = ShmCompletionCode;
+ ev.drawable = stuff->drawable;
+ ev.sequenceNumber = client->sequence;
+ ev.minorEvent = X_ShmPutImage;
+ ev.majorEvent = ShmReqCode;
+ ev.shmseg = stuff->shmseg;
+ ev.offset = stuff->offset;
+ WriteEventsToClient(client, 1, (xEvent *) &ev);
+ }
+
+ return (client->noClientException);
+}
+
+
+
+static int
+ProcShmGetImage(ClientPtr client)
+{
+ DrawablePtr pDraw;
+ long lenPer = 0, length;
+ Mask plane = 0;
+ xShmGetImageReply xgi;
+ ShmDescPtr shmdesc;
+ int n, rc;
+
+ REQUEST(xShmGetImageReq);
+
+ REQUEST_SIZE_MATCH(xShmGetImageReq);
+ if ((stuff->format != XYPixmap) && (stuff->format != ZPixmap))
+ {
+ client->errorValue = stuff->format;
+ return(BadValue);
+ }
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
+ DixReadAccess);
+ if (rc != Success)
+ return rc;
+ VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
+ if (pDraw->type == DRAWABLE_WINDOW)
+ {
+ if( /* check for being viewable */
+ !((WindowPtr) pDraw)->realized ||
+ /* check for being on screen */
+ pDraw->x + stuff->x < 0 ||
+ pDraw->x + stuff->x + (int)stuff->width > pDraw->pScreen->width ||
+ pDraw->y + stuff->y < 0 ||
+ pDraw->y + stuff->y + (int)stuff->height > pDraw->pScreen->height ||
+ /* check for being inside of border */
+ stuff->x < - wBorderWidth((WindowPtr)pDraw) ||
+ stuff->x + (int)stuff->width >
+ wBorderWidth((WindowPtr)pDraw) + (int)pDraw->width ||
+ stuff->y < -wBorderWidth((WindowPtr)pDraw) ||
+ stuff->y + (int)stuff->height >
+ wBorderWidth((WindowPtr)pDraw) + (int)pDraw->height
+ )
+ return(BadMatch);
+ xgi.visual = wVisual(((WindowPtr)pDraw));
+ }
+ else
+ {
+ if (stuff->x < 0 ||
+ stuff->x+(int)stuff->width > pDraw->width ||
+ stuff->y < 0 ||
+ stuff->y+(int)stuff->height > pDraw->height
+ )
+ return(BadMatch);
+ xgi.visual = None;
+ }
+ xgi.type = X_Reply;
+ xgi.length = 0;
+ xgi.sequenceNumber = client->sequence;
+ xgi.depth = pDraw->depth;
+ if(stuff->format == ZPixmap)
+ {
+ length = PixmapBytePad(stuff->width, pDraw->depth) * stuff->height;
+ }
+ else
+ {
+ lenPer = PixmapBytePad(stuff->width, 1) * stuff->height;
+ plane = ((Mask)1) << (pDraw->depth - 1);
+ /* only planes asked for */
+ length = lenPer * Ones(stuff->planeMask & (plane | (plane - 1)));
+ }
+
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, length, client);
+ xgi.size = length;
+
+ if (length == 0)
+ {
+ /* nothing to do */
+ }
+ else if (stuff->format == ZPixmap)
+ {
+ (*pDraw->pScreen->GetImage)(pDraw, stuff->x, stuff->y,
+ stuff->width, stuff->height,
+ stuff->format, stuff->planeMask,
+ shmdesc->addr + stuff->offset);
+ }
+ else
+ {
+
+ length = stuff->offset;
+ for (; plane; plane >>= 1)
+ {
+ if (stuff->planeMask & plane)
+ {
+ (*pDraw->pScreen->GetImage)(pDraw,
+ stuff->x, stuff->y,
+ stuff->width, stuff->height,
+ stuff->format, plane,
+ shmdesc->addr + length);
+ length += lenPer;
+ }
+ }
+ }
+
+ if (client->swapped) {
+ swaps(&xgi.sequenceNumber, n);
+ swapl(&xgi.length, n);
+ swapl(&xgi.visual, n);
+ swapl(&xgi.size, n);
+ }
+ WriteToClient(client, sizeof(xShmGetImageReply), (char *)&xgi);
+
+ return(client->noClientException);
+}
+
+static PixmapPtr
+fbShmCreatePixmap (ScreenPtr pScreen,
+ int width, int height, int depth, char *addr)
+{
+ PixmapPtr pPixmap;
+
+ pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);
+ if (!pPixmap)
+ return NullPixmap;
+
+ if (!(*pScreen->ModifyPixmapHeader)(pPixmap, width, height, depth,
+ BitsPerPixel(depth), PixmapBytePad(width, depth), (pointer)addr)) {
+ (*pScreen->DestroyPixmap)(pPixmap);
+ return NullPixmap;
+ }
+ return pPixmap;
+}
+
+static int
+ProcShmCreatePixmap(ClientPtr client)
+{
+ PixmapPtr pMap;
+ DrawablePtr pDraw;
+ DepthPtr pDepth;
+ int i, rc;
+ ShmDescPtr shmdesc;
+ REQUEST(xShmCreatePixmapReq);
+ unsigned int width, height, depth;
+ unsigned long size;
+
+ REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
+ client->errorValue = stuff->pid;
+ if (!sharedPixmaps)
+ return BadImplementation;
+ LEGAL_NEW_RESOURCE(stuff->pid, client);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ VERIFY_SHMPTR(stuff->shmseg, stuff->offset, TRUE, shmdesc, client);
+
+ width = stuff->width;
+ height = stuff->height;
+ depth = stuff->depth;
+ if (!width || !height || !depth)
+ {
+ client->errorValue = 0;
+ return BadValue;
+ }
+ if (width > 32767 || height > 32767)
+ return BadAlloc;
+
+ if (stuff->depth != 1)
+ {
+ pDepth = pDraw->pScreen->allowedDepths;
+ for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++)
+ if (pDepth->depth == stuff->depth)
+ goto CreatePmap;
+ client->errorValue = stuff->depth;
+ return BadValue;
+ }
+
+CreatePmap:
+ size = PixmapBytePad(width, depth) * height;
+ if (sizeof(size) == 4 && BitsPerPixel(depth) > 8) {
+ if (size < width * height)
+ return BadAlloc;
+ }
+ /* thankfully, offset is unsigned */
+ if (stuff->offset + size < size)
+ return BadAlloc;
+
+ VERIFY_SHMSIZE(shmdesc, stuff->offset, size, client);
+ pMap = (*shmFuncs[pDraw->pScreen->myNum]->CreatePixmap)(
+ pDraw->pScreen, stuff->width,
+ stuff->height, stuff->depth,
+ shmdesc->addr + stuff->offset);
+ if (pMap)
+ {
+ rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP,
+ pMap, RT_NONE, NULL, DixCreateAccess);
+ if (rc != Success) {
+ pDraw->pScreen->DestroyPixmap(pMap);
+ return rc;
+ }
+ dixSetPrivate(&pMap->devPrivates, shmPixmapPrivate, shmdesc);
+ shmdesc->refcnt++;
+ pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pMap->drawable.id = stuff->pid;
+ if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap))
+ {
+ return(client->noClientException);
+ }
+ pDraw->pScreen->DestroyPixmap(pMap);
+ }
+ return (BadAlloc);
+}
+
+static int
+ProcShmDispatch (ClientPtr client)
+{
+ REQUEST(xReq);
+ switch (stuff->data)
+ {
+ case X_ShmQueryVersion:
+ return ProcShmQueryVersion(client);
+ case X_ShmAttach:
+ return ProcShmAttach(client);
+ case X_ShmDetach:
+ return ProcShmDetach(client);
+ case X_ShmPutImage:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmPutImage(client);
+#endif
+ return ProcShmPutImage(client);
+ case X_ShmGetImage:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmGetImage(client);
+#endif
+ return ProcShmGetImage(client);
+ case X_ShmCreatePixmap:
+#ifdef PANORAMIX
+ if ( !noPanoramiXExtension )
+ return ProcPanoramiXShmCreatePixmap(client);
+#endif
+ return ProcShmCreatePixmap(client);
+ default:
+ return BadRequest;
+ }
+}
+
+static void
+SShmCompletionEvent(xShmCompletionEvent *from, xShmCompletionEvent *to)
+{
+ to->type = from->type;
+ cpswaps(from->sequenceNumber, to->sequenceNumber);
+ cpswapl(from->drawable, to->drawable);
+ cpswaps(from->minorEvent, to->minorEvent);
+ to->majorEvent = from->majorEvent;
+ cpswapl(from->shmseg, to->shmseg);
+ cpswapl(from->offset, to->offset);
+}
+
+static int
+SProcShmQueryVersion(ClientPtr client)
+{
+ int n;
+ REQUEST(xShmQueryVersionReq);
+
+ swaps(&stuff->length, n);
+ return ProcShmQueryVersion(client);
+}
+
+static int
+SProcShmAttach(ClientPtr client)
+{
+ int n;
+ REQUEST(xShmAttachReq);
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xShmAttachReq);
+ swapl(&stuff->shmseg, n);
+ swapl(&stuff->shmid, n);
+ return ProcShmAttach(client);
+}
+
+static int
+SProcShmDetach(ClientPtr client)
+{
+ int n;
+ REQUEST(xShmDetachReq);
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xShmDetachReq);
+ swapl(&stuff->shmseg, n);
+ return ProcShmDetach(client);
+}
+
+static int
+SProcShmPutImage(ClientPtr client)
+{
+ int n;
+ REQUEST(xShmPutImageReq);
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xShmPutImageReq);
+ swapl(&stuff->drawable, n);
+ swapl(&stuff->gc, n);
+ swaps(&stuff->totalWidth, n);
+ swaps(&stuff->totalHeight, n);
+ swaps(&stuff->srcX, n);
+ swaps(&stuff->srcY, n);
+ swaps(&stuff->srcWidth, n);
+ swaps(&stuff->srcHeight, n);
+ swaps(&stuff->dstX, n);
+ swaps(&stuff->dstY, n);
+ swapl(&stuff->shmseg, n);
+ swapl(&stuff->offset, n);
+ return ProcShmPutImage(client);
+}
+
+static int
+SProcShmGetImage(ClientPtr client)
+{
+ int n;
+ REQUEST(xShmGetImageReq);
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xShmGetImageReq);
+ swapl(&stuff->drawable, n);
+ swaps(&stuff->x, n);
+ swaps(&stuff->y, n);
+ swaps(&stuff->width, n);
+ swaps(&stuff->height, n);
+ swapl(&stuff->planeMask, n);
+ swapl(&stuff->shmseg, n);
+ swapl(&stuff->offset, n);
+ return ProcShmGetImage(client);
+}
+
+static int
+SProcShmCreatePixmap(ClientPtr client)
+{
+ int n;
+ REQUEST(xShmCreatePixmapReq);
+ swaps(&stuff->length, n);
+ REQUEST_SIZE_MATCH(xShmCreatePixmapReq);
+ swapl(&stuff->pid, n);
+ swapl(&stuff->drawable, n);
+ swaps(&stuff->width, n);
+ swaps(&stuff->height, n);
+ swapl(&stuff->shmseg, n);
+ swapl(&stuff->offset, n);
+ return ProcShmCreatePixmap(client);
+}
+
+static int
+SProcShmDispatch (ClientPtr client)
+{
+ REQUEST(xReq);
+ switch (stuff->data)
+ {
+ case X_ShmQueryVersion:
+ return SProcShmQueryVersion(client);
+ case X_ShmAttach:
+ return SProcShmAttach(client);
+ case X_ShmDetach:
+ return SProcShmDetach(client);
+ case X_ShmPutImage:
+ return SProcShmPutImage(client);
+ case X_ShmGetImage:
+ return SProcShmGetImage(client);
+ case X_ShmCreatePixmap:
+ return SProcShmCreatePixmap(client);
+ default:
+ return BadRequest;
+ }
+}
diff --git a/xorg-server/Xext/syncsrv.h b/xorg-server/Xext/syncsrv.h index 00e0bda50..6d0e3d64a 100644 --- a/xorg-server/Xext/syncsrv.h +++ b/xorg-server/Xext/syncsrv.h @@ -173,4 +173,5 @@ extern void SyncDestroySystemCounter( ); extern void InitServertime(void); +extern void SyncExtensionInit(void); #endif /* _SYNCSRV_H_ */ diff --git a/xorg-server/Xext/xcalibrate.c b/xorg-server/Xext/xcalibrate.c index f923c17a1..6e6461a5f 100644 --- a/xorg-server/Xext/xcalibrate.c +++ b/xorg-server/Xext/xcalibrate.c @@ -32,6 +32,7 @@ #include "dixstruct.h" #include "extnsionst.h" #include "swaprep.h" +#include "protocol-versions.h" #include <X11/extensions/xcalibrateproto.h> #include <X11/extensions/xcalibratewire.h> @@ -79,8 +80,8 @@ ProcXCalibrateQueryVersion (ClientPtr client) rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; - rep.majorVersion = XCALIBRATE_MAJOR_VERSION; - rep.minorVersion = XCALIBRATE_MINOR_VERSION; + rep.majorVersion = SERVER_XCALIBRATE_MAJOR_VERSION; + rep.minorVersion = SERVER_XCALIBRATE_MINOR_VERSION; if (client->swapped) { int n; swaps(&rep.sequenceNumber, n); diff --git a/xorg-server/Xext/xcmisc.c b/xorg-server/Xext/xcmisc.c index f644cb458..39079a294 100644 --- a/xorg-server/Xext/xcmisc.c +++ b/xorg-server/Xext/xcmisc.c @@ -55,6 +55,8 @@ static DISPATCH_PROC(SProcXCMiscGetVersion); static DISPATCH_PROC(SProcXCMiscGetXIDList); static DISPATCH_PROC(SProcXCMiscGetXIDRange); +void XCMiscExtensionInit(INITARGS); + void XCMiscExtensionInit(INITARGS) { diff --git a/xorg-server/Xext/xf86bigfont.c b/xorg-server/Xext/xf86bigfont.c index aeea23313..ba8b60358 100644 --- a/xorg-server/Xext/xf86bigfont.c +++ b/xorg-server/Xext/xf86bigfont.c @@ -71,6 +71,7 @@ #include "gcstruct.h" #include "dixfontstr.h" #include "extnsionst.h" +#include "protocol-versions.h" #include <X11/extensions/xf86bigfproto.h> @@ -338,8 +339,8 @@ ProcXF86BigfontQueryVersion( reply.type = X_Reply; reply.length = 0; reply.sequenceNumber = client->sequence; - reply.majorVersion = XF86BIGFONT_MAJOR_VERSION; - reply.minorVersion = XF86BIGFONT_MINOR_VERSION; + reply.majorVersion = SERVER_XF86BIGFONT_MAJOR_VERSION; + reply.minorVersion = SERVER_XF86BIGFONT_MINOR_VERSION; reply.uid = geteuid(); reply.gid = getegid(); #ifdef HAS_SHM diff --git a/xorg-server/Xext/xres.c b/xorg-server/Xext/xres.c index 9dd08b113..109aa639a 100644 --- a/xorg-server/Xext/xres.c +++ b/xorg-server/Xext/xres.c @@ -21,6 +21,7 @@ #include "windowstr.h" #include "gcstruct.h" #include "modinit.h" +#include "protocol-versions.h" static int ProcXResQueryVersion (ClientPtr client) @@ -39,8 +40,8 @@ ProcXResQueryVersion (ClientPtr client) rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; - rep.server_major = XRES_MAJOR_VERSION; - rep.server_minor = XRES_MINOR_VERSION; + rep.server_major = SERVER_XRES_MAJOR_VERSION; + rep.server_minor = SERVER_XRES_MINOR_VERSION; if (client->swapped) { int n; swaps(&rep.sequenceNumber, n); diff --git a/xorg-server/Xext/xvmc.c b/xorg-server/Xext/xvmc.c index b7bb0fc1b..c17a4b1c3 100644 --- a/xorg-server/Xext/xvmc.c +++ b/xorg-server/Xext/xvmc.c @@ -20,6 +20,7 @@ #include <X11/extensions/Xvproto.h> #include <X11/extensions/XvMCproto.h> #include "xvmcext.h" +#include "protocol-versions.h" #ifdef HAS_XVMCSHM #include <sys/ipc.h> @@ -116,8 +117,8 @@ ProcXvMCQueryVersion(ClientPtr client) rep.type = X_Reply; rep.sequenceNumber = client->sequence; rep.length = 0; - rep.major = XvMCVersion; - rep.minor = XvMCRevision; + rep.major = SERVER_XVMC_MAJOR_VERSION; + rep.minor = SERVER_XVMC_MINOR_VERSION; WriteToClient(client, sizeof(xvmcQueryVersionReply), (char*)&rep); return Success; } |