/************************************************************ Copyright 1987, 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. Copyright 1987, 1989 by Digital Equipment Corporation, Maynard, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ********************************************************/ /* The panoramix components contained the following notice */ /***************************************************************** Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. 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. 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 DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from Digital Equipment Corporation. ******************************************************************/ /* XSERVER_DTRACE additions: * Copyright 2005-2006 Sun Microsystems, Inc. All rights reserved. * * 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 (including the next * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. */ #ifdef HAVE_DIX_CONFIG_H #include #include #endif #ifdef PANORAMIX_DEBUG #include int ProcInitialConnection(); #endif #include "windowstr.h" #include #include "dixfontstr.h" #include "gcstruct.h" #include "selection.h" #include "colormapst.h" #include "cursorstr.h" #include "scrnintstr.h" #include "opaque.h" #include "input.h" #include "servermd.h" #include "extnsionst.h" #include "dixfont.h" #include "dispatch.h" #include "swaprep.h" #include "swapreq.h" #include "privates.h" #include "xace.h" #include "inputstr.h" #include "xkbsrv.h" #include "site.h" #ifdef XSERVER_DTRACE #include "registry.h" #include typedef const char *string; #include "Xserver-dtrace.h" #endif #define mskcnt ((MAXCLIENTS + 31) / 32) #define BITMASK(i) (1U << ((i) & 31)) #define MASKIDX(i) ((i) >> 5) #define MASKWORD(buf, i) buf[MASKIDX(i)] #define BITSET(buf, i) MASKWORD(buf, i) |= BITMASK(i) #define BITCLEAR(buf, i) MASKWORD(buf, i) &= ~BITMASK(i) #define GETBIT(buf, i) (MASKWORD(buf, i) & BITMASK(i)) xConnSetupPrefix connSetupPrefix; PaddingInfo PixmapWidthPaddingInfo[33]; static ClientPtr grabClient; #define GrabNone 0 #define GrabActive 1 #define GrabKickout 2 static int grabState = GrabNone; static long grabWaiters[mskcnt]; CallbackListPtr ServerGrabCallback = NULL; HWEventQueuePtr checkForInput[2]; int connBlockScreenStart; static void KillAllClients(void); static int nextFreeClientID; /* always MIN free client ID */ static int nClients; /* number of authorized clients */ CallbackListPtr ClientStateCallback; /* dispatchException & isItTimeToYield must be declared volatile since they * are modified by signal handlers - otherwise optimizer may assume it doesn't * need to actually check value in memory when used and may miss changes from * signal handlers. */ volatile char dispatchException = 0; volatile char isItTimeToYield; /* Various of the DIX function interfaces were not designed to allow * the client->errorValue to be set on BadValue and other errors. * Rather than changing interfaces and breaking untold code we introduce * a new global that dispatch can use. */ XID clientErrorValue; /* XXX this is a kludge */ #define SAME_SCREENS(a, b) (\ (a.pScreen == b.pScreen)) void SetInputCheck(HWEventQueuePtr c0, HWEventQueuePtr c1) { checkForInput[0] = c0; checkForInput[1] = c1; } void UpdateCurrentTime(void) { TimeStamp systime; /* To avoid time running backwards, we must call GetTimeInMillis before * calling ProcessInputEvents. */ systime.months = currentTime.months; systime.milliseconds = GetTimeInMillis(); if (systime.milliseconds < currentTime.milliseconds) systime.months++; if (*checkForInput[0] != *checkForInput[1]) ProcessInputEvents(); if (CompareTimeStamps(systime, currentTime) == LATER) currentTime = systime; } /* Like UpdateCurrentTime, but can't call ProcessInputEvents */ void UpdateCurrentTimeIf(void) { TimeStamp systime; systime.months = currentTime.months; systime.milliseconds = GetTimeInMillis(); if (systime.milliseconds < currentTime.milliseconds) systime.months++; if (*checkForInput[0] == *checkForInput[1]) currentTime = systime; } #undef SMART_DEBUG #define SMART_SCHEDULE_DEFAULT_INTERVAL 20 /* ms */ #define SMART_SCHEDULE_MAX_SLICE 200 /* ms */ Bool SmartScheduleDisable = FALSE; long SmartScheduleSlice = SMART_SCHEDULE_DEFAULT_INTERVAL; long SmartScheduleInterval = SMART_SCHEDULE_DEFAULT_INTERVAL; long SmartScheduleMaxSlice = SMART_SCHEDULE_MAX_SLICE; long SmartScheduleTime; int SmartScheduleLatencyLimited = 0; static ClientPtr SmartLastClient; static int SmartLastIndex[SMART_MAX_PRIORITY-SMART_MIN_PRIORITY+1]; #ifdef SMART_DEBUG long SmartLastPrint; #endif void Dispatch(void); void InitProcVectors(void); static int SmartScheduleClient (int *clientReady, int nready) { ClientPtr pClient; int i; int client; int bestPrio, best = 0; int bestRobin, robin; long now = SmartScheduleTime; long idle; bestPrio = -0x7fffffff; bestRobin = 0; idle = 2 * SmartScheduleSlice; for (i = 0; i < nready; i++) { client = clientReady[i]; pClient = clients[client]; /* Praise clients which are idle */ if ((now - pClient->smart_check_tick) >= idle) { if (pClient->smart_priority < 0) pClient->smart_priority++; } pClient->smart_check_tick = now; /* check priority to select best client */ robin = (pClient->index - SmartLastIndex[pClient->smart_priority-SMART_MIN_PRIORITY]) & 0xff; if (pClient->smart_priority > bestPrio || (pClient->smart_priority == bestPrio && robin > bestRobin)) { bestPrio = pClient->smart_priority; bestRobin = robin; best = client; } #ifdef SMART_DEBUG if ((now - SmartLastPrint) >= 5000) fprintf (stderr, " %2d: %3d", client, pClient->smart_priority); #endif } #ifdef SMART_DEBUG if ((now - SmartLastPrint) >= 5000) { fprintf (stderr, " use %2d\n", best); SmartLastPrint = now; } #endif pClient = clients[best]; SmartLastIndex[bestPrio-SMART_MIN_PRIORITY] = pClient->index; /* * Set current client pointer */ if (SmartLastClient != pClient) { pClient->smart_start_tick = now; SmartLastClient = pClient; } /* * Adjust slice */ if (nready == 1 && SmartScheduleLatencyLimited == 0) { /* * If it's been a long time since another client * has run, bump the slice up to get maximal * performance from a single client */ if ((now - pClient->smart_start_tick) > 1000 && SmartScheduleSlice < SmartScheduleMaxSlice) { SmartScheduleSlice += SmartScheduleInterval; } } else { SmartScheduleSlice = SmartScheduleInterval; } return best; } void EnableLimitedSchedulingLatency(void) { ++SmartScheduleLatencyLimited; SmartScheduleSlice = SmartScheduleInterval; } void DisableLimitedSchedulingLatency(void) { --SmartScheduleLatencyLimited; /* protect against bugs */ if (SmartScheduleLatencyLimited < 0) SmartScheduleLatencyLimited = 0; } #define MAJOROP ((xReq *)client->requestBuffer)->reqType void Dispatch(void) { int *clientReady; /* array of request ready clients */ int result; ClientPtr client; int nready; HWEventQueuePtr* icheck = checkForInput; long start_tick; nextFreeClientID = 1; nClients = 0; clientReady = xalloc(sizeof(int) * MaxClients); if (!clientReady) return; SmartScheduleSlice = SmartScheduleInterval; while (!dispatchException) { if (*icheck[0] != *icheck[1]) { ProcessInputEvents(); FlushIfCriticalOutputPending(); } nready = WaitForSomething(clientReady); if (nready && !SmartScheduleDisable) { clientReady[0] = SmartScheduleClient (clientReady, nready); nready = 1; } /***************** * Handle events in round robin fashion, doing input between * each round *****************/ while (!dispatchException && (--nready >= 0)) { client = clients[clientReady[nready]]; if (! client) { /* KillClient can cause this to happen */ continue; } /* GrabServer activation can cause this to be true */ if (grabState == GrabKickout) { grabState = GrabActive; break; } isItTimeToYield = FALSE; start_tick = SmartScheduleTime; while (!isItTimeToYield) { if (*icheck[0] != *icheck[1]) ProcessInputEvents(); FlushIfCriticalOutputPending(); if (!SmartScheduleDisable && (SmartScheduleTime - start_tick) >= SmartScheduleSlice) { /* Penalize clients which consume ticks */ if (client->smart_priority > SMART_MIN_PRIORITY) client->smart_priority--; break; } /* now, finally, deal with client requests */ result = ReadRequestFromClient(client); if (result <= 0) { if (result < 0) CloseDownClient(client); break; } client->sequence++; #ifdef XSERVER_DTRACE XSERVER_REQUEST_START(LookupMajorName(MAJOROP), MAJOROP, ((xReq *)client->requestBuffer)->length, client->index, client->requestBuffer); #endif if (result > (maxBigRequestSize << 2)) result = BadLength; else { result = XaceHookDispatch(client, MAJOROP); if (result == Success) result = (* client->requestVector[MAJOROP])(client); XaceHookAuditEnd(client, result); } #ifdef XSERVER_DTRACE XSERVER_REQUEST_DONE(LookupMajorName(MAJOROP), MAJOROP, client->sequence, client->index, result); #endif if (result != Success) { if (client->noClientException != Success) CloseDownClient(client); else SendErrorToClient(client, MAJOROP, MinorOpcodeOfRequest(client), client->errorValue, result); break; } } FlushAllOutput(); client = clients[clientReady[nready]]; if (client) client->smart_stop_tick = SmartScheduleTime; } dispatchException &= ~DE_PRIORITYCHANGE; } #if defined(DDXBEFORERESET) ddxBeforeReset (); #endif KillAllClients(); xfree(clientReady); dispatchException &= ~DE_RESET; SmartScheduleLatencyLimited = 0; } #undef MAJOROP static int VendorRelease = VENDOR_RELEASE; static char *VendorString = VENDOR_NAME; static const int padlength[4] = {0, 3, 2, 1}; void SetVendorRelease(int release) { VendorRelease = release; } void SetVendorString(char *string) { VendorString = string; } Bool CreateConnectionBlock(void) { xConnSetup setup; xWindowRoot root; xDepth depth; xVisualType visual; xPixmapFormat format; unsigned long vid; int i, j, k, lenofblock, sizesofar = 0; char *pBuf; memset(&setup, 0, sizeof(xConnSetup)); /* Leave off the ridBase and ridMask, these must be sent with connection */ setup.release = VendorRelease; /* * per-server image and bitmap parameters are defined in Xmd.h */ setup.imageByteOrder = screenInfo.imageByteOrder; setup.bitmapScanlineUnit = screenInfo.bitmapScanlineUnit; setup.bitmapScanlinePad = screenInfo.bitmapScanlinePad; setup.bitmapBitOrder = screenInfo.bitmapBitOrder; setup.motionBufferSize = NumMotionEvents(); setup.numRoots = screenInfo.numScreens; setup.nbytesVendor = strlen(VendorString); setup.numFormats = screenInfo.numPixmapFormats; setup.maxRequestSize = MAX_REQUEST_SIZE; QueryMinMaxKeyCodes(&setup.minKeyCode, &setup.maxKeyCode); lenofblock = sizeof(xConnSetup) + pad_to_int32(setup.nbytesVendor) + (setup.numFormats * sizeof(xPixmapFormat)) + (setup.numRoots * sizeof(xWindowRoot)); ConnectionInfo = xalloc(lenofblock); if (!ConnectionInfo) return FALSE; memmove(ConnectionInfo, (char *)&setup, sizeof(xConnSetup)); sizesofar = sizeof(xConnSetup); pBuf = ConnectionInfo + sizeof(xConnSetup); memmove(pBuf, VendorString, (int)setup.nbytesVendor); sizesofar += setup.nbytesVendor; pBuf += setup.nbytesVendor; i = padlength[setup.nbytesVendor & 3]; sizesofar += i; while (--i >= 0) *pBuf++ = 0; memset(&format, 0, sizeof(xPixmapFormat)); for (i=0; idrawable.id; root.defaultColormap = pScreen->defColormap; root.whitePixel = pScreen->whitePixel; root.blackPixel = pScreen->blackPixel; root.currentInputMask = 0; /* filled in when sent */ root.pixWidth = pScreen->width; root.pixHeight = pScreen->height; root.mmWidth = pScreen->mmWidth; root.mmHeight = pScreen->mmHeight; root.minInstalledMaps = pScreen->minInstalledCmaps; root.maxInstalledMaps = pScreen->maxInstalledCmaps; root.rootVisualID = pScreen->rootVisual; root.backingStore = pScreen->backingStoreSupport; root.saveUnders = FALSE; root.rootDepth = pScreen->rootDepth; root.nDepths = pScreen->numDepths; memmove(pBuf, (char *)&root, sizeof(xWindowRoot)); sizesofar += sizeof(xWindowRoot); pBuf += sizeof(xWindowRoot); pDepth = pScreen->allowedDepths; for(j = 0; j < pScreen->numDepths; j++, pDepth++) { lenofblock += sizeof(xDepth) + (pDepth->numVids * sizeof(xVisualType)); pBuf = (char *)xrealloc(ConnectionInfo, lenofblock); if (!pBuf) { xfree(ConnectionInfo); return FALSE; } ConnectionInfo = pBuf; pBuf += sizesofar; depth.depth = pDepth->depth; depth.nVisuals = pDepth->numVids; memmove(pBuf, (char *)&depth, sizeof(xDepth)); pBuf += sizeof(xDepth); sizesofar += sizeof(xDepth); for(k = 0; k < pDepth->numVids; k++) { vid = pDepth->vids[k]; for (pVisual = pScreen->visuals; pVisual->vid != vid; pVisual++) ; visual.visualID = vid; visual.class = pVisual->class; visual.bitsPerRGB = pVisual->bitsPerRGBValue; visual.colormapEntries = pVisual->ColormapEntries; visual.redMask = pVisual->redMask; visual.greenMask = pVisual->greenMask; visual.blueMask = pVisual->blueMask; memmove(pBuf, (char *)&visual, sizeof(xVisualType)); pBuf += sizeof(xVisualType); sizesofar += sizeof(xVisualType); } } } connSetupPrefix.success = xTrue; connSetupPrefix.length = lenofblock/4; connSetupPrefix.majorVersion = X_PROTOCOL; connSetupPrefix.minorVersion = X_PROTOCOL_REVISION; return TRUE; } int ProcBadRequest(ClientPtr client) { return (BadRequest); } int ProcCreateWindow(ClientPtr client) { WindowPtr pParent, pWin; REQUEST(xCreateWindowReq); int len, rc; REQUEST_AT_LEAST_SIZE(xCreateWindowReq); LEGAL_NEW_RESOURCE(stuff->wid, client); rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess); if (rc != Success) return rc; len = client->req_len - bytes_to_int32(sizeof(xCreateWindowReq)); if (Ones(stuff->mask) != len) return BadLength; if (!stuff->width || !stuff->height) { client->errorValue = 0; return BadValue; } pWin = CreateWindow(stuff->wid, pParent, stuff->x, stuff->y, stuff->width, stuff->height, stuff->borderWidth, stuff->class, stuff->mask, (XID *) &stuff[1], (int)stuff->depth, client, stuff->visual, &rc); if (pWin) { Mask mask = pWin->eventMask; pWin->eventMask = 0; /* subterfuge in case AddResource fails */ if (!AddResource(stuff->wid, RT_WINDOW, (pointer)pWin)) return BadAlloc; pWin->eventMask = mask; } if (client->noClientException != Success) return(client->noClientException); else return rc; } int ProcChangeWindowAttributes(ClientPtr client) { WindowPtr pWin; REQUEST(xChangeWindowAttributesReq); int result, len, rc; Mask access_mode = 0; REQUEST_AT_LEAST_SIZE(xChangeWindowAttributesReq); access_mode |= (stuff->valueMask & CWEventMask) ? DixReceiveAccess : 0; access_mode |= (stuff->valueMask & ~CWEventMask) ? DixSetAttrAccess : 0; rc = dixLookupWindow(&pWin, stuff->window, client, access_mode); if (rc != Success) return rc; len = client->req_len - bytes_to_int32(sizeof(xChangeWindowAttributesReq)); if (len != Ones(stuff->valueMask)) return BadLength; result = ChangeWindowAttributes(pWin, stuff->valueMask, (XID *) &stuff[1], client); if (client->noClientException != Success) return(client->noClientException); else return(result); } int ProcGetWindowAttributes(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); xGetWindowAttributesReply wa; int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess); if (rc != Success) return rc; memset(&wa, 0, sizeof(xGetWindowAttributesReply)); GetWindowAttributes(pWin, client, &wa); WriteReplyToClient(client, sizeof(xGetWindowAttributesReply), &wa); return(client->noClientException); } int ProcDestroyWindow(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixDestroyAccess); if (rc != Success) return rc; if (pWin->parent) { rc = dixLookupWindow(&pWin, pWin->parent->drawable.id, client, DixRemoveAccess); if (rc != Success) return rc; FreeResource(stuff->id, RT_NONE); } return(client->noClientException); } int ProcDestroySubwindows(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixRemoveAccess); if (rc != Success) return rc; DestroySubwindows(pWin, client); return(client->noClientException); } int ProcChangeSaveSet(ClientPtr client) { WindowPtr pWin; REQUEST(xChangeSaveSetReq); int result, rc; REQUEST_SIZE_MATCH(xChangeSaveSetReq); rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess); if (rc != Success) return rc; if (client->clientAsMask == (CLIENT_BITS(pWin->drawable.id))) return BadMatch; if ((stuff->mode == SetModeInsert) || (stuff->mode == SetModeDelete)) { result = AlterSaveSetForClient(client, pWin, stuff->mode, FALSE, TRUE); if (client->noClientException != Success) return(client->noClientException); else return(result); } else { client->errorValue = stuff->mode; return( BadValue ); } } int ProcReparentWindow(ClientPtr client) { WindowPtr pWin, pParent; REQUEST(xReparentWindowReq); int result, rc; REQUEST_SIZE_MATCH(xReparentWindowReq); rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess); if (rc != Success) return rc; rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess); if (rc != Success) return rc; if (SAME_SCREENS(pWin->drawable, pParent->drawable)) { if ((pWin->backgroundState == ParentRelative) && (pParent->drawable.depth != pWin->drawable.depth)) return BadMatch; if ((pWin->drawable.class != InputOnly) && (pParent->drawable.class == InputOnly)) return BadMatch; result = ReparentWindow(pWin, pParent, (short)stuff->x, (short)stuff->y, client); if (client->noClientException != Success) return(client->noClientException); else return(result); } else return (BadMatch); } int ProcMapWindow(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixShowAccess); if (rc != Success) return rc; MapWindow(pWin, client); /* update cache to say it is mapped */ return(client->noClientException); } int ProcMapSubwindows(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess); if (rc != Success) return rc; MapSubwindows(pWin, client); /* update cache to say it is mapped */ return(client->noClientException); } int ProcUnmapWindow(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixHideAccess); if (rc != Success) return rc; UnmapWindow(pWin, FALSE); /* update cache to say it is mapped */ return(client->noClientException); } int ProcUnmapSubwindows(ClientPtr client) { WindowPtr pWin; REQUEST(xResourceReq); int rc; REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess); if (rc != Success) return rc; UnmapSubwindows(pWin); return(client->noClientException); } int ProcConfigureWindow(ClientPtr client) { WindowPtr pWin; REQUEST(xConfigureWindowReq); int result; int len, rc; REQUEST_AT_LEAST_SIZE(xConfigureWindowReq); rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess|DixSetAttrAccess); if (rc != Success) return rc; len = client->req_len - bytes_to_int32(sizeof(xConfigureWindowReq)); if (Ones((Mask)stuff->mask) != len) return BadLength; result = ConfigureWindow(pWin, (Mask)stuff->mask, (XID *) &stuff[1], client); if (client->noClientException != Success) return(client->noClientException); else return(result); } int ProcCirculateWindow(ClientPtr client) { WindowPtr pWin; REQUEST(xCirculateWindowReq); int rc; REQUEST_SIZE_MATCH(xCirculateWindowReq); if ((stuff->direction != RaiseLowest) && (stuff->direction != LowerHighest)) { client->errorValue = stuff->direction; return BadValue; } rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess); if (rc != Success) return rc; CirculateWindow(pWin, (int)stuff->direction, client); return(client->noClientException); } static int GetGeometry(ClientPtr client, xGetGeometryReply *rep) { DrawablePtr pDraw; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupDrawable(&pDraw, stuff->id, client, M_ANY, DixGetAttrAccess); if (rc != Success) return rc; rep->type = X_Reply; rep->length = 0; rep->sequenceNumber = client->sequence; rep->root = WindowTable[pDraw->pScreen->myNum]->drawable.id; rep->depth = pDraw->depth; rep->width = pDraw->width; rep->height = pDraw->height; /* XXX - Because the pixmap-implementation of the multibuffer extension * may have the buffer-id's drawable resource value be a pointer * to the buffer's window instead of the buffer itself * (this happens if the buffer is the displayed buffer), * we also have to check that the id matches before we can * truly say that it is a DRAWABLE_WINDOW. */ if ((pDraw->type == UNDRAWABLE_WINDOW) || ((pDraw->type == DRAWABLE_WINDOW) && (stuff->id == pDraw->id))) { WindowPtr pWin = (WindowPtr)pDraw; rep->x = pWin->origin.x - wBorderWidth (pWin); rep->y = pWin->origin.y - wBorderWidth (pWin); rep->borderWidth = pWin->borderWidth; } else /* DRAWABLE_PIXMAP or DRAWABLE_BUFFER */ { rep->x = rep->y = rep->borderWidth = 0; } return Success; } int ProcGetGeometry(ClientPtr client) { xGetGeometryReply rep; int status; memset(&rep, 0, sizeof(xGetGeometryReply)); if ((status = GetGeometry(client, &rep)) != Success) return status; WriteReplyToClient(client, sizeof(xGetGeometryReply), &rep); return(client->noClientException); } int ProcQueryTree(ClientPtr client) { xQueryTreeReply reply; int rc, numChildren = 0; WindowPtr pChild, pWin, pHead; Window *childIDs = (Window *)NULL; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess); if (rc != Success) return rc; memset(&reply, 0, sizeof(xQueryTreeReply)); reply.type = X_Reply; reply.root = WindowTable[pWin->drawable.pScreen->myNum]->drawable.id; reply.sequenceNumber = client->sequence; if (pWin->parent) reply.parent = pWin->parent->drawable.id; else reply.parent = (Window)None; pHead = RealChildHead(pWin); for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib) numChildren++; if (numChildren) { int curChild = 0; childIDs = xalloc(numChildren * sizeof(Window)); if (!childIDs) return BadAlloc; for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib) childIDs[curChild++] = pChild->drawable.id; } reply.nChildren = numChildren; reply.length = bytes_to_int32(numChildren * sizeof(Window)); WriteReplyToClient(client, sizeof(xQueryTreeReply), &reply); if (numChildren) { client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; WriteSwappedDataToClient(client, numChildren * sizeof(Window), childIDs); xfree(childIDs); } return(client->noClientException); } int ProcInternAtom(ClientPtr client) { Atom atom; char *tchar; REQUEST(xInternAtomReq); REQUEST_FIXED_SIZE(xInternAtomReq, stuff->nbytes); if ((stuff->onlyIfExists != xTrue) && (stuff->onlyIfExists != xFalse)) { client->errorValue = stuff->onlyIfExists; return(BadValue); } tchar = (char *) &stuff[1]; atom = MakeAtom(tchar, stuff->nbytes, !stuff->onlyIfExists); if (atom != BAD_RESOURCE) { xInternAtomReply reply; memset(&reply, 0, sizeof(xInternAtomReply)); reply.type = X_Reply; reply.length = 0; reply.sequenceNumber = client->sequence; reply.atom = atom; WriteReplyToClient(client, sizeof(xInternAtomReply), &reply); return(client->noClientException); } else return (BadAlloc); } int ProcGetAtomName(ClientPtr client) { const char *str; xGetAtomNameReply reply; int len; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); if ( (str = NameForAtom(stuff->id)) ) { len = strlen(str); memset(&reply, 0, sizeof(xGetAtomNameReply)); reply.type = X_Reply; reply.length = bytes_to_int32(len); reply.sequenceNumber = client->sequence; reply.nameLength = len; WriteReplyToClient(client, sizeof(xGetAtomNameReply), &reply); (void)WriteToClient(client, len, str); return(client->noClientException); } else { client->errorValue = stuff->id; return (BadAtom); } } int ProcGrabServer(ClientPtr client) { int rc; REQUEST_SIZE_MATCH(xReq); if (grabState != GrabNone && client != grabClient) { ResetCurrentRequest(client); client->sequence--; BITSET(grabWaiters, client->index); IgnoreClient(client); return(client->noClientException); } rc = OnlyListenToOneClient(client); if (rc != Success) return rc; grabState = GrabKickout; grabClient = client; if (ServerGrabCallback) { ServerGrabInfoRec grabinfo; grabinfo.client = client; grabinfo.grabstate = SERVER_GRABBED; CallCallbacks(&ServerGrabCallback, (pointer)&grabinfo); } return(client->noClientException); } static void UngrabServer(ClientPtr client) { int i; grabState = GrabNone; ListenToAllClients(); for (i = mskcnt; --i >= 0 && !grabWaiters[i]; ) ; if (i >= 0) { i <<= 5; while (!GETBIT(grabWaiters, i)) i++; BITCLEAR(grabWaiters, i); AttendClient(clients[i]); } if (ServerGrabCallback) { ServerGrabInfoRec grabinfo; grabinfo.client = client; grabinfo.grabstate = SERVER_UNGRABBED; CallCallbacks(&ServerGrabCallback, (pointer)&grabinfo); } } int ProcUngrabServer(ClientPtr client) { REQUEST_SIZE_MATCH(xReq); UngrabServer(client); return(client->noClientException); } int ProcTranslateCoords(ClientPtr client) { REQUEST(xTranslateCoordsReq); WindowPtr pWin, pDst; xTranslateCoordsReply rep; int rc; REQUEST_SIZE_MATCH(xTranslateCoordsReq); rc = dixLookupWindow(&pWin, stuff->srcWid, client, DixGetAttrAccess); if (rc != Success) return rc; rc = dixLookupWindow(&pDst, stuff->dstWid, client, DixGetAttrAccess); if (rc != Success) return rc; memset(&rep, 0, sizeof(xTranslateCoordsReply)); rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; if (!SAME_SCREENS(pWin->drawable, pDst->drawable)) { rep.sameScreen = xFalse; rep.child = None; rep.dstX = rep.dstY = 0; } else { INT16 x, y; rep.sameScreen = xTrue; rep.child = None; /* computing absolute coordinates -- adjust to destination later */ x = pWin->drawable.x + stuff->srcX; y = pWin->drawable.y + stuff->srcY; pWin = pDst->firstChild; while (pWin) { BoxRec box; if ((pWin->mapped) && (x >= pWin->drawable.x - wBorderWidth (pWin)) && (x < pWin->drawable.x + (int)pWin->drawable.width + wBorderWidth (pWin)) && (y >= pWin->drawable.y - wBorderWidth (pWin)) && (y < pWin->drawable.y + (int)pWin->drawable.height + wBorderWidth (pWin)) /* When a window is shaped, a further check * is made to see if the point is inside * borderSize */ && (!wBoundingShape(pWin) || POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderSize, x, y, &box)) && (!wInputShape(pWin) || POINT_IN_REGION(pWin->drawable.pScreen, wInputShape(pWin), x - pWin->drawable.x, y - pWin->drawable.y, &box)) ) { rep.child = pWin->drawable.id; pWin = (WindowPtr) NULL; } else pWin = pWin->nextSib; } /* adjust to destination coordinates */ rep.dstX = x - pDst->drawable.x; rep.dstY = y - pDst->drawable.y; } WriteReplyToClient(client, sizeof(xTranslateCoordsReply), &rep); return(client->noClientException); } int ProcOpenFont(ClientPtr client) { int err; REQUEST(xOpenFontReq); REQUEST_FIXED_SIZE(xOpenFontReq, stuff->nbytes); client->errorValue = stuff->fid; LEGAL_NEW_RESOURCE(stuff->fid, client); err = OpenFont(client, stuff->fid, (Mask) 0, stuff->nbytes, (char *)&stuff[1]); if (err == Success) { return(client->noClientException); } else return err; } int ProcCloseFont(ClientPtr client) { FontPtr pFont; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupResourceByType((pointer *)&pFont, stuff->id, RT_FONT, client, DixDestroyAccess); if (rc == Success) { FreeResource(stuff->id, RT_NONE); return(client->noClientException); } else { client->errorValue = stuff->id; return (rc == BadValue) ? BadFont : rc; } } int ProcQueryFont(ClientPtr client) { xQueryFontReply *reply; FontPtr pFont; GC *pGC; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); client->errorValue = stuff->id; /* EITHER font or gc */ rc = dixLookupResourceByType((pointer *)&pFont, stuff->id, RT_FONT, client, DixGetAttrAccess); if (rc == BadValue) { rc = dixLookupResourceByType((pointer *)&pGC, stuff->id, RT_GC, client, DixGetAttrAccess); if (rc == Success) pFont = pGC->font; } if (rc != Success) return (rc == BadValue) ? BadFont: rc; { xCharInfo *pmax = FONTINKMAX(pFont); xCharInfo *pmin = FONTINKMIN(pFont); int nprotoxcistructs; int rlength; nprotoxcistructs = ( pmax->rightSideBearing == pmin->rightSideBearing && pmax->leftSideBearing == pmin->leftSideBearing && pmax->descent == pmin->descent && pmax->ascent == pmin->ascent && pmax->characterWidth == pmin->characterWidth) ? 0 : N2dChars(pFont); rlength = sizeof(xQueryFontReply) + FONTINFONPROPS(FONTCHARSET(pFont)) * sizeof(xFontProp) + nprotoxcistructs * sizeof(xCharInfo); reply = xcalloc(1, rlength); if(!reply) { return(BadAlloc); } reply->type = X_Reply; reply->length = bytes_to_int32(rlength - sizeof(xGenericReply)); reply->sequenceNumber = client->sequence; QueryFont( pFont, reply, nprotoxcistructs); WriteReplyToClient(client, rlength, reply); xfree(reply); return(client->noClientException); } } int ProcQueryTextExtents(ClientPtr client) { xQueryTextExtentsReply reply; FontPtr pFont; GC *pGC; ExtentInfoRec info; unsigned long length; int rc; REQUEST(xQueryTextExtentsReq); REQUEST_AT_LEAST_SIZE(xQueryTextExtentsReq); client->errorValue = stuff->fid; /* EITHER font or gc */ rc = dixLookupResourceByType((pointer *)&pFont, stuff->fid, RT_FONT, client, DixGetAttrAccess); if (rc == BadValue) { rc = dixLookupResourceByType((pointer *)&pGC, stuff->fid, RT_GC, client, DixGetAttrAccess); if (rc == Success) pFont = pGC->font; } if (rc != Success) return (rc == BadValue) ? BadFont: rc; length = client->req_len - bytes_to_int32(sizeof(xQueryTextExtentsReq)); length = length << 1; if (stuff->oddLength) { if (length == 0) return(BadLength); length--; } if (!QueryTextExtents(pFont, length, (unsigned char *)&stuff[1], &info)) return(BadAlloc); reply.type = X_Reply; reply.length = 0; reply.sequenceNumber = client->sequence; reply.drawDirection = info.drawDirection; reply.fontAscent = info.fontAscent; reply.fontDescent = info.fontDescent; reply.overallAscent = info.overallAscent; reply.overallDescent = info.overallDescent; reply.overallWidth = info.overallWidth; reply.overallLeft = info.overallLeft; reply.overallRight = info.overallRight; WriteReplyToClient(client, sizeof(xQueryTextExtentsReply), &reply); return(client->noClientException); } int ProcListFonts(ClientPtr client) { REQUEST(xListFontsReq); REQUEST_FIXED_SIZE(xListFontsReq, stuff->nbytes); return ListFonts(client, (unsigned char *) &stuff[1], stuff->nbytes, stuff->maxNames); } int ProcListFontsWithInfo(ClientPtr client) { REQUEST(xListFontsWithInfoReq); REQUEST_FIXED_SIZE(xListFontsWithInfoReq, stuff->nbytes); return StartListFontsWithInfo(client, stuff->nbytes, (unsigned char *) &stuff[1], stuff->maxNames); } /** * * \param value must conform to DeleteType */ int dixDestroyPixmap(pointer value, XID pid) { PixmapPtr pPixmap = (PixmapPtr)value; return (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap); } int ProcCreatePixmap(ClientPtr client) { PixmapPtr pMap; DrawablePtr pDraw; REQUEST(xCreatePixmapReq); DepthPtr pDepth; int i, rc; REQUEST_SIZE_MATCH(xCreatePixmapReq); client->errorValue = stuff->pid; LEGAL_NEW_RESOURCE(stuff->pid, client); rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY, DixGetAttrAccess); if (rc != Success) return rc; if (!stuff->width || !stuff->height) { client->errorValue = 0; return BadValue; } if (stuff->width > 32767 || stuff->height > 32767) { /* It is allowed to try and allocate a pixmap which is larger than * 32767 in either dimension. However, all of the framebuffer code * is buggy and does not reliably draw to such big pixmaps, basically * because the Region data structure operates with signed shorts * for the rectangles in it. * * Furthermore, several places in the X server computes the * size in bytes of the pixmap and tries to store it in an * integer. This integer can overflow and cause the allocated size * to be much smaller. * * So, such big pixmaps are rejected here with a BadAlloc */ return BadAlloc; } if (stuff->depth != 1) { pDepth = pDraw->pScreen->allowedDepths; for (i=0; ipScreen->numDepths; i++, pDepth++) if (pDepth->depth == stuff->depth) goto CreatePmap; client->errorValue = stuff->depth; return BadValue; } CreatePmap: pMap = (PixmapPtr)(*pDraw->pScreen->CreatePixmap) (pDraw->pScreen, stuff->width, stuff->height, stuff->depth, 0); if (pMap) { pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER; pMap->drawable.id = stuff->pid; /* security creation/labeling check */ rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP, pMap, RT_NONE, NULL, DixCreateAccess); if (rc != Success) { (*pDraw->pScreen->DestroyPixmap)(pMap); return rc; } if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap)) return(client->noClientException); (*pDraw->pScreen->DestroyPixmap)(pMap); } return (BadAlloc); } int ProcFreePixmap(ClientPtr client) { PixmapPtr pMap; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupResourceByType((pointer *)&pMap, stuff->id, RT_PIXMAP, client, DixDestroyAccess); if (rc == Success) { FreeResource(stuff->id, RT_NONE); return(client->noClientException); } else { client->errorValue = stuff->id; return (rc == BadValue) ? BadPixmap : rc; } } int ProcCreateGC(ClientPtr client) { int error, rc; GC *pGC; DrawablePtr pDraw; unsigned len; REQUEST(xCreateGCReq); REQUEST_AT_LEAST_SIZE(xCreateGCReq); client->errorValue = stuff->gc; LEGAL_NEW_RESOURCE(stuff->gc, client); rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0, DixGetAttrAccess); if (rc != Success) return rc; len = client->req_len - bytes_to_int32(sizeof(xCreateGCReq)); if (len != Ones(stuff->mask)) return BadLength; pGC = (GC *)CreateGC(pDraw, stuff->mask, (XID *) &stuff[1], &error, stuff->gc, client); if (error != Success) return error; if (!AddResource(stuff->gc, RT_GC, (pointer)pGC)) return (BadAlloc); return(client->noClientException); } int ProcChangeGC(ClientPtr client) { GC *pGC; int result; unsigned len; REQUEST(xChangeGCReq); REQUEST_AT_LEAST_SIZE(xChangeGCReq); result = dixLookupGC(&pGC, stuff->gc, client, DixSetAttrAccess); if (result != Success) return result; len = client->req_len - bytes_to_int32(sizeof(xChangeGCReq)); if (len != Ones(stuff->mask)) return BadLength; result = dixChangeGC(client, pGC, stuff->mask, (CARD32 *) &stuff[1], 0); if (client->noClientException != Success) return(client->noClientException); else { client->errorValue = clientErrorValue; return(result); } } int ProcCopyGC(ClientPtr client) { GC *dstGC; GC *pGC; int result; REQUEST(xCopyGCReq); REQUEST_SIZE_MATCH(xCopyGCReq); result = dixLookupGC(&pGC, stuff->srcGC, client, DixGetAttrAccess); if (result != Success) return result; result = dixLookupGC(&dstGC, stuff->dstGC, client, DixSetAttrAccess); if (result != Success) return result; if ((dstGC->pScreen != pGC->pScreen) || (dstGC->depth != pGC->depth)) return (BadMatch); result = CopyGC(pGC, dstGC, stuff->mask); if (client->noClientException != Success) return(client->noClientException); else { client->errorValue = clientErrorValue; return(result); } } int ProcSetDashes(ClientPtr client) { GC *pGC; int result; REQUEST(xSetDashesReq); REQUEST_FIXED_SIZE(xSetDashesReq, stuff->nDashes); if (stuff->nDashes == 0) { client->errorValue = 0; return BadValue; } result = dixLookupGC(&pGC,stuff->gc, client, DixSetAttrAccess); if (result != Success) return result; result = SetDashes(pGC, stuff->dashOffset, stuff->nDashes, (unsigned char *)&stuff[1]); if (client->noClientException != Success) return(client->noClientException); else { client->errorValue = clientErrorValue; return(result); } } int ProcSetClipRectangles(ClientPtr client) { int nr, result; GC *pGC; REQUEST(xSetClipRectanglesReq); REQUEST_AT_LEAST_SIZE(xSetClipRectanglesReq); if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) && (stuff->ordering != YXSorted) && (stuff->ordering != YXBanded)) { client->errorValue = stuff->ordering; return BadValue; } result = dixLookupGC(&pGC,stuff->gc, client, DixSetAttrAccess); if (result != Success) return result; nr = (client->req_len << 2) - sizeof(xSetClipRectanglesReq); if (nr & 4) return(BadLength); nr >>= 3; result = SetClipRects(pGC, stuff->xOrigin, stuff->yOrigin, nr, (xRectangle *)&stuff[1], (int)stuff->ordering); if (client->noClientException != Success) return(client->noClientException); else return(result); } int ProcFreeGC(ClientPtr client) { GC *pGC; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupGC(&pGC, stuff->id, client, DixDestroyAccess); if (rc != Success) return rc; FreeResource(stuff->id, RT_NONE); return(client->noClientException); } int ProcClearToBackground(ClientPtr client) { REQUEST(xClearAreaReq); WindowPtr pWin; int rc; REQUEST_SIZE_MATCH(xClearAreaReq); rc = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess); if (rc != Success) return rc; if (pWin->drawable.class == InputOnly) { client->errorValue = stuff->window; return (BadMatch); } if ((stuff->exposures != xTrue) && (stuff->exposures != xFalse)) { client->errorValue = stuff->exposures; return(BadValue); } (*pWin->drawable.pScreen->ClearToBackground)(pWin, stuff->x, stuff->y, stuff->width, stuff->height, (Bool)stuff->exposures); return(client->noClientException); } int ProcCopyArea(ClientPtr client) { DrawablePtr pDst; DrawablePtr pSrc; GC *pGC; REQUEST(xCopyAreaReq); RegionPtr pRgn; int rc; REQUEST_SIZE_MATCH(xCopyAreaReq); VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pDst, DixWriteAccess); if (stuff->dstDrawable != stuff->srcDrawable) { rc = dixLookupDrawable(&pSrc, stuff->srcDrawable, client, 0, DixReadAccess); if (rc != Success) return rc; if ((pDst->pScreen != pSrc->pScreen) || (pDst->depth != pSrc->depth)) { client->errorValue = stuff->dstDrawable; return (BadMatch); } } else pSrc = pDst; pRgn = (*pGC->ops->CopyArea)(pSrc, pDst, pGC, stuff->srcX, stuff->srcY, stuff->width, stuff->height, stuff->dstX, stuff->dstY); if (pGC->graphicsExposures) { (*pDst->pScreen->SendGraphicsExpose) (client, pRgn, stuff->dstDrawable, X_CopyArea, 0); if (pRgn) REGION_DESTROY(pDst->pScreen, pRgn); } return(client->noClientException); } int ProcCopyPlane(ClientPtr client) { DrawablePtr psrcDraw, pdstDraw; GC *pGC; REQUEST(xCopyPlaneReq); RegionPtr pRgn; int rc; REQUEST_SIZE_MATCH(xCopyPlaneReq); VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pdstDraw, DixWriteAccess); if (stuff->dstDrawable != stuff->srcDrawable) { rc = dixLookupDrawable(&psrcDraw, stuff->srcDrawable, client, 0, DixReadAccess); if (rc != Success) return rc; if (pdstDraw->pScreen != psrcDraw->pScreen) { client->errorValue = stuff->dstDrawable; return (BadMatch); } } else psrcDraw = pdstDraw; /* Check to see if stuff->bitPlane has exactly ONE good bit set */ if(stuff->bitPlane == 0 || (stuff->bitPlane & (stuff->bitPlane - 1)) || (stuff->bitPlane > (1L << (psrcDraw->depth - 1)))) { client->errorValue = stuff->bitPlane; return(BadValue); } pRgn = (*pGC->ops->CopyPlane)(psrcDraw, pdstDraw, pGC, stuff->srcX, stuff->srcY, stuff->width, stuff->height, stuff->dstX, stuff->dstY, stuff->bitPlane); if (pGC->graphicsExposures) { (*pdstDraw->pScreen->SendGraphicsExpose) (client, pRgn, stuff->dstDrawable, X_CopyPlane, 0); if (pRgn) REGION_DESTROY(pdstDraw->pScreen, pRgn); } return(client->noClientException); } int ProcPolyPoint(ClientPtr client) { int npoint; GC *pGC; DrawablePtr pDraw; REQUEST(xPolyPointReq); REQUEST_AT_LEAST_SIZE(xPolyPointReq); if ((stuff->coordMode != CoordModeOrigin) && (stuff->coordMode != CoordModePrevious)) { client->errorValue = stuff->coordMode; return BadValue; } VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyPointReq)); if (npoint) (*pGC->ops->PolyPoint)(pDraw, pGC, stuff->coordMode, npoint, (xPoint *) &stuff[1]); return (client->noClientException); } int ProcPolyLine(ClientPtr client) { int npoint; GC *pGC; DrawablePtr pDraw; REQUEST(xPolyLineReq); REQUEST_AT_LEAST_SIZE(xPolyLineReq); if ((stuff->coordMode != CoordModeOrigin) && (stuff->coordMode != CoordModePrevious)) { client->errorValue = stuff->coordMode; return BadValue; } VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyLineReq)); if (npoint > 1) (*pGC->ops->Polylines)(pDraw, pGC, stuff->coordMode, npoint, (DDXPointPtr) &stuff[1]); return(client->noClientException); } int ProcPolySegment(ClientPtr client) { int nsegs; GC *pGC; DrawablePtr pDraw; REQUEST(xPolySegmentReq); REQUEST_AT_LEAST_SIZE(xPolySegmentReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); nsegs = (client->req_len << 2) - sizeof(xPolySegmentReq); if (nsegs & 4) return(BadLength); nsegs >>= 3; if (nsegs) (*pGC->ops->PolySegment)(pDraw, pGC, nsegs, (xSegment *) &stuff[1]); return (client->noClientException); } int ProcPolyRectangle (ClientPtr client) { int nrects; GC *pGC; DrawablePtr pDraw; REQUEST(xPolyRectangleReq); REQUEST_AT_LEAST_SIZE(xPolyRectangleReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); nrects = (client->req_len << 2) - sizeof(xPolyRectangleReq); if (nrects & 4) return(BadLength); nrects >>= 3; if (nrects) (*pGC->ops->PolyRectangle)(pDraw, pGC, nrects, (xRectangle *) &stuff[1]); return(client->noClientException); } int ProcPolyArc(ClientPtr client) { int narcs; GC *pGC; DrawablePtr pDraw; REQUEST(xPolyArcReq); REQUEST_AT_LEAST_SIZE(xPolyArcReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); narcs = (client->req_len << 2) - sizeof(xPolyArcReq); if (narcs % sizeof(xArc)) return(BadLength); narcs /= sizeof(xArc); if (narcs) (*pGC->ops->PolyArc)(pDraw, pGC, narcs, (xArc *) &stuff[1]); return (client->noClientException); } int ProcFillPoly(ClientPtr client) { int things; GC *pGC; DrawablePtr pDraw; REQUEST(xFillPolyReq); REQUEST_AT_LEAST_SIZE(xFillPolyReq); if ((stuff->shape != Complex) && (stuff->shape != Nonconvex) && (stuff->shape != Convex)) { client->errorValue = stuff->shape; return BadValue; } if ((stuff->coordMode != CoordModeOrigin) && (stuff->coordMode != CoordModePrevious)) { client->errorValue = stuff->coordMode; return BadValue; } VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); things = bytes_to_int32((client->req_len << 2) - sizeof(xFillPolyReq)); if (things) (*pGC->ops->FillPolygon) (pDraw, pGC, stuff->shape, stuff->coordMode, things, (DDXPointPtr) &stuff[1]); return(client->noClientException); } int ProcPolyFillRectangle(ClientPtr client) { int things; GC *pGC; DrawablePtr pDraw; REQUEST(xPolyFillRectangleReq); REQUEST_AT_LEAST_SIZE(xPolyFillRectangleReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); things = (client->req_len << 2) - sizeof(xPolyFillRectangleReq); if (things & 4) return(BadLength); things >>= 3; if (things) (*pGC->ops->PolyFillRect) (pDraw, pGC, things, (xRectangle *) &stuff[1]); return (client->noClientException); } int ProcPolyFillArc(ClientPtr client) { int narcs; GC *pGC; DrawablePtr pDraw; REQUEST(xPolyFillArcReq); REQUEST_AT_LEAST_SIZE(xPolyFillArcReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); narcs = (client->req_len << 2) - sizeof(xPolyFillArcReq); if (narcs % sizeof(xArc)) return(BadLength); narcs /= sizeof(xArc); if (narcs) (*pGC->ops->PolyFillArc) (pDraw, pGC, narcs, (xArc *) &stuff[1]); return (client->noClientException); } #ifdef MATCH_CLIENT_ENDIAN int ServerOrder (void) { int whichbyte = 1; if (*((char *) &whichbyte)) return LSBFirst; return MSBFirst; } #define ClientOrder(client) ((client)->swapped ? !ServerOrder() : ServerOrder()) void ReformatImage (char *base, int nbytes, int bpp, int order) { switch (bpp) { case 1: /* yuck */ if (BITMAP_BIT_ORDER != order) BitOrderInvert ((unsigned char *) base, nbytes); #if IMAGE_BYTE_ORDER != BITMAP_BIT_ORDER && BITMAP_SCANLINE_UNIT != 8 ReformatImage (base, nbytes, BITMAP_SCANLINE_UNIT, order); #endif break; case 4: break; /* yuck */ case 8: break; case 16: if (IMAGE_BYTE_ORDER != order) TwoByteSwap ((unsigned char *) base, nbytes); break; case 32: if (IMAGE_BYTE_ORDER != order) FourByteSwap ((unsigned char *) base, nbytes); break; } } #else #define ReformatImage(b,n,bpp,o) #endif /* 64-bit server notes: the protocol restricts padding of images to * 8-, 16-, or 32-bits. We would like to have 64-bits for the server * to use internally. Removes need for internal alignment checking. * All of the PutImage functions could be changed individually, but * as currently written, they call other routines which require things * to be 64-bit padded on scanlines, so we changed things here. * If an image would be padded differently for 64- versus 32-, then * copy each scanline to a 64-bit padded scanline. * Also, we need to make sure that the image is aligned on a 64-bit * boundary, even if the scanlines are padded to our satisfaction. */ int ProcPutImage(ClientPtr client) { GC *pGC; DrawablePtr pDraw; long length; /* length of scanline server padded */ long lengthProto; /* length of scanline protocol padded */ char *tmpImage; REQUEST(xPutImageReq); REQUEST_AT_LEAST_SIZE(xPutImageReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); if (stuff->format == XYBitmap) { if ((stuff->depth != 1) || (stuff->leftPad >= (unsigned int)screenInfo.bitmapScanlinePad)) return BadMatch; length = BitmapBytePad(stuff->width + stuff->leftPad); } else if (stuff->format == XYPixmap) { if ((pDraw->depth != stuff->depth) || (stuff->leftPad >= (unsigned int)screenInfo.bitmapScanlinePad)) return BadMatch; length = BitmapBytePad(stuff->width + stuff->leftPad); length *= stuff->depth; } else if (stuff->format == ZPixmap) { if ((pDraw->depth != stuff->depth) || (stuff->leftPad != 0)) return BadMatch; length = PixmapBytePad(stuff->width, stuff->depth); } else { client->errorValue = stuff->format; return BadValue; } tmpImage = (char *)&stuff[1]; lengthProto = length; if ((bytes_to_int32(lengthProto * stuff->height) + bytes_to_int32(sizeof(xPutImageReq))) != client->req_len) return BadLength; ReformatImage (tmpImage, lengthProto * stuff->height, stuff->format == ZPixmap ? BitsPerPixel (stuff->depth) : 1, ClientOrder(client)); (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth, stuff->dstX, stuff->dstY, stuff->width, stuff->height, stuff->leftPad, stuff->format, tmpImage); return (client->noClientException); } static int DoGetImage(ClientPtr client, int format, Drawable drawable, int x, int y, int width, int height, Mask planemask, xGetImageReply **im_return) { DrawablePtr pDraw, pBoundingDraw; int nlines, linesPerBuf, rc; int linesDone; /* coordinates relative to the bounding drawable */ int relx, rely; long widthBytesLine, length; Mask plane = 0; char *pBuf; xGetImageReply xgi; RegionPtr pVisibleRegion = NULL; if ((format != XYPixmap) && (format != ZPixmap)) { client->errorValue = format; return(BadValue); } rc = dixLookupDrawable(&pDraw, drawable, client, 0, DixReadAccess); if (rc != Success) return rc; memset(&xgi, 0, sizeof(xGetImageReply)); relx = x; rely = y; if(pDraw->type == DRAWABLE_WINDOW) { WindowPtr pWin = (WindowPtr)pDraw; /* "If the drawable is a window, the window must be viewable ... or a * BadMatch error results" */ if (!pWin->viewable) return BadMatch; relx += pDraw->x; rely += pDraw->y; if (pDraw->pScreen->GetWindowPixmap) { PixmapPtr pPix = (*pDraw->pScreen->GetWindowPixmap) (pWin); pBoundingDraw = &pPix->drawable; #ifdef COMPOSITE relx -= pPix->screen_x; rely -= pPix->screen_y; #endif } else { pBoundingDraw = (DrawablePtr)WindowTable[pDraw->pScreen->myNum]; } xgi.visual = wVisual (pWin); } else { pBoundingDraw = pDraw; xgi.visual = None; } /* "If the drawable is a pixmap, the given rectangle must be wholly * contained within the pixmap, or a BadMatch error results. If the * drawable is a window [...] it must be the case that if there were no * inferiors or overlapping windows, the specified rectangle of the window * would be fully visible on the screen and wholly contained within the * outside edges of the window, or a BadMatch error results." * * We relax the window case slightly to mean that the rectangle must exist * within the bounds of the window's backing pixmap. In particular, this * means that a GetImage request may succeed or fail with BadMatch depending * on whether any of its ancestor windows are redirected. */ if(relx < 0 || relx + width > (int)pBoundingDraw->width || rely < 0 || rely + height > (int)pBoundingDraw->height) return BadMatch; xgi.type = X_Reply; xgi.sequenceNumber = client->sequence; xgi.depth = pDraw->depth; if(format == ZPixmap) { widthBytesLine = PixmapBytePad(width, pDraw->depth); length = widthBytesLine * height; } else { widthBytesLine = BitmapBytePad(width); plane = ((Mask)1) << (pDraw->depth - 1); /* only planes asked for */ length = widthBytesLine * height * Ones(planemask & (plane | (plane - 1))); } xgi.length = length; if (im_return) { pBuf = xcalloc(1, sz_xGetImageReply + length); if (!pBuf) return (BadAlloc); if (widthBytesLine == 0) linesPerBuf = 0; else linesPerBuf = height; *im_return = (xGetImageReply *)pBuf; *(xGetImageReply *)pBuf = xgi; pBuf += sz_xGetImageReply; } else { xgi.length = bytes_to_int32(xgi.length); if (widthBytesLine == 0 || height == 0) linesPerBuf = 0; else if (widthBytesLine >= IMAGE_BUFSIZE) linesPerBuf = 1; else { linesPerBuf = IMAGE_BUFSIZE / widthBytesLine; if (linesPerBuf > height) linesPerBuf = height; } length = linesPerBuf * widthBytesLine; if (linesPerBuf < height) { /* we have to make sure intermediate buffers don't need padding */ while ((linesPerBuf > 1) && (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD)-1))) { linesPerBuf--; length -= widthBytesLine; } while (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD)-1)) { linesPerBuf++; length += widthBytesLine; } } if(!(pBuf = xcalloc(1, length))) return (BadAlloc); WriteReplyToClient(client, sizeof (xGetImageReply), &xgi); } if (pDraw->type == DRAWABLE_WINDOW) { pVisibleRegion = NotClippedByChildren((WindowPtr)pDraw); if (pVisibleRegion) { REGION_TRANSLATE(pDraw->pScreen, pVisibleRegion, -pDraw->x, -pDraw->y); } } if (linesPerBuf == 0) { /* nothing to do */ } else if (format == ZPixmap) { linesDone = 0; while (height - linesDone > 0) { nlines = min(linesPerBuf, height - linesDone); (*pDraw->pScreen->GetImage) (pDraw, x, y + linesDone, width, nlines, format, planemask, (pointer) pBuf); if (pVisibleRegion) XaceCensorImage(client, pVisibleRegion, widthBytesLine, pDraw, x, y + linesDone, width, nlines, format, pBuf); /* Note that this is NOT a call to WriteSwappedDataToClient, as we do NOT byte swap */ if (!im_return) { ReformatImage (pBuf, (int)(nlines * widthBytesLine), BitsPerPixel (pDraw->depth), ClientOrder(client)); /* Don't split me, gcc pukes when you do */ (void)WriteToClient(client, (int)(nlines * widthBytesLine), pBuf); } linesDone += nlines; } } else /* XYPixmap */ { for (; plane; plane >>= 1) { if (planemask & plane) { linesDone = 0; while (height - linesDone > 0) { nlines = min(linesPerBuf, height - linesDone); (*pDraw->pScreen->GetImage) (pDraw, x, y + linesDone, width, nlines, format, plane, (pointer)pBuf); if (pVisibleRegion) XaceCensorImage(client, pVisibleRegion, widthBytesLine, pDraw, x, y + linesDone, width, nlines, format, pBuf); /* Note: NOT a call to WriteSwappedDataToClient, as we do NOT byte swap */ if (im_return) { pBuf += nlines * widthBytesLine; } else { ReformatImage (pBuf, (int)(nlines * widthBytesLine), 1, ClientOrder (client)); /* Don't split me, gcc pukes when you do */ (void)WriteToClient(client, (int)(nlines * widthBytesLine), pBuf); } linesDone += nlines; } } } } if (pVisibleRegion) REGION_DESTROY(pDraw->pScreen, pVisibleRegion); if (!im_return) xfree(pBuf); return (client->noClientException); } int ProcGetImage(ClientPtr client) { REQUEST(xGetImageReq); REQUEST_SIZE_MATCH(xGetImageReq); return DoGetImage(client, stuff->format, stuff->drawable, stuff->x, stuff->y, (int)stuff->width, (int)stuff->height, stuff->planeMask, (xGetImageReply **)NULL); } int ProcPolyText(ClientPtr client) { int err; REQUEST(xPolyTextReq); DrawablePtr pDraw; GC *pGC; REQUEST_AT_LEAST_SIZE(xPolyTextReq); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); err = PolyText(client, pDraw, pGC, (unsigned char *)&stuff[1], ((unsigned char *) stuff) + (client->req_len << 2), stuff->x, stuff->y, stuff->reqType, stuff->drawable); if (err == Success) { return(client->noClientException); } else return err; } int ProcImageText8(ClientPtr client) { int err; DrawablePtr pDraw; GC *pGC; REQUEST(xImageTextReq); REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); err = ImageText(client, pDraw, pGC, stuff->nChars, (unsigned char *)&stuff[1], stuff->x, stuff->y, stuff->reqType, stuff->drawable); if (err == Success) { return(client->noClientException); } else return err; } int ProcImageText16(ClientPtr client) { int err; DrawablePtr pDraw; GC *pGC; REQUEST(xImageTextReq); REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars << 1); VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess); err = ImageText(client, pDraw, pGC, stuff->nChars, (unsigned char *)&stuff[1], stuff->x, stuff->y, stuff->reqType, stuff->drawable); if (err == Success) { return(client->noClientException); } else return err; } int ProcCreateColormap(ClientPtr client) { VisualPtr pVisual; ColormapPtr pmap; Colormap mid; WindowPtr pWin; ScreenPtr pScreen; REQUEST(xCreateColormapReq); int i, result; REQUEST_SIZE_MATCH(xCreateColormapReq); if ((stuff->alloc != AllocNone) && (stuff->alloc != AllocAll)) { client->errorValue = stuff->alloc; return(BadValue); } mid = stuff->mid; LEGAL_NEW_RESOURCE(mid, client); result = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess); if (result != Success) return result; pScreen = pWin->drawable.pScreen; for (i = 0, pVisual = pScreen->visuals; i < pScreen->numVisuals; i++, pVisual++) { if (pVisual->vid != stuff->visual) continue; result = CreateColormap(mid, pScreen, pVisual, &pmap, (int)stuff->alloc, client->index); if (client->noClientException != Success) return(client->noClientException); else return(result); } client->errorValue = stuff->visual; return(BadMatch); } int ProcFreeColormap(ClientPtr client) { ColormapPtr pmap; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupResourceByType((pointer *)&pmap, stuff->id, RT_COLORMAP, client, DixDestroyAccess); if (rc == Success) { /* Freeing a default colormap is a no-op */ if (!(pmap->flags & IsDefault)) FreeResource(stuff->id, RT_NONE); return (client->noClientException); } else { client->errorValue = stuff->id; return (rc == BadValue) ? BadColor : rc; } } int ProcCopyColormapAndFree(ClientPtr client) { Colormap mid; ColormapPtr pSrcMap; REQUEST(xCopyColormapAndFreeReq); int rc; REQUEST_SIZE_MATCH(xCopyColormapAndFreeReq); mid = stuff->mid; LEGAL_NEW_RESOURCE(mid, client); rc = dixLookupResourceByType((pointer *)&pSrcMap, stuff->srcCmap, RT_COLORMAP, client, DixReadAccess|DixRemoveAccess); if (rc == Success) { rc = CopyColormapAndFree(mid, pSrcMap, client->index); if (client->noClientException != Success) return(client->noClientException); else return rc; } else { client->errorValue = stuff->srcCmap; return (rc == BadValue) ? BadColor : rc; } } int ProcInstallColormap(ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP, client, DixInstallAccess); if (rc != Success) goto out; rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess); if (rc != Success) goto out; (*(pcmp->pScreen->InstallColormap)) (pcmp); rc = client->noClientException; out: client->errorValue = stuff->id; return (rc == BadValue) ? BadColor : rc; } int ProcUninstallColormap(ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP, client, DixUninstallAccess); if (rc != Success) goto out; rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess); if (rc != Success) goto out; if(pcmp->mid != pcmp->pScreen->defColormap) (*(pcmp->pScreen->UninstallColormap)) (pcmp); rc = client->noClientException; out: client->errorValue = stuff->id; return (rc == BadValue) ? BadColor : rc; } int ProcListInstalledColormaps(ClientPtr client) { xListInstalledColormapsReply *preply; int nummaps, rc; WindowPtr pWin; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess); if (rc != Success) goto out; rc = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen, DixGetAttrAccess); if (rc != Success) goto out; preply = xalloc(sizeof(xListInstalledColormapsReply) + pWin->drawable.pScreen->maxInstalledCmaps * sizeof(Colormap)); if(!preply) return(BadAlloc); preply->type = X_Reply; preply->sequenceNumber = client->sequence; nummaps = (*pWin->drawable.pScreen->ListInstalledColormaps) (pWin->drawable.pScreen, (Colormap *)&preply[1]); preply->nColormaps = nummaps; preply->length = nummaps; WriteReplyToClient(client, sizeof (xListInstalledColormapsReply), preply); client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; WriteSwappedDataToClient(client, nummaps * sizeof(Colormap), &preply[1]); xfree(preply); rc = client->noClientException; out: return rc; } int ProcAllocColor (ClientPtr client) { ColormapPtr pmap; int rc; xAllocColorReply acr; REQUEST(xAllocColorReq); REQUEST_SIZE_MATCH(xAllocColorReq); rc = dixLookupResourceByType((pointer *)&pmap, stuff->cmap, RT_COLORMAP, client, DixAddAccess); if (rc == Success) { acr.type = X_Reply; acr.length = 0; acr.sequenceNumber = client->sequence; acr.red = stuff->red; acr.green = stuff->green; acr.blue = stuff->blue; acr.pixel = 0; if( (rc = AllocColor(pmap, &acr.red, &acr.green, &acr.blue, &acr.pixel, client->index)) ) { if (client->noClientException != Success) return(client->noClientException); else return rc; } #ifdef PANORAMIX if (noPanoramiXExtension || !pmap->pScreen->myNum) #endif WriteReplyToClient(client, sizeof(xAllocColorReply), &acr); return (client->noClientException); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcAllocNamedColor (ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xAllocNamedColorReq); REQUEST_FIXED_SIZE(xAllocNamedColorReq, stuff->nbytes); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixAddAccess); if (rc == Success) { xAllocNamedColorReply ancr; ancr.type = X_Reply; ancr.length = 0; ancr.sequenceNumber = client->sequence; if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes, &ancr.exactRed, &ancr.exactGreen, &ancr.exactBlue)) { ancr.screenRed = ancr.exactRed; ancr.screenGreen = ancr.exactGreen; ancr.screenBlue = ancr.exactBlue; ancr.pixel = 0; if( (rc = AllocColor(pcmp, &ancr.screenRed, &ancr.screenGreen, &ancr.screenBlue, &ancr.pixel, client->index)) ) { if (client->noClientException != Success) return(client->noClientException); else return rc; } #ifdef PANORAMIX if (noPanoramiXExtension || !pcmp->pScreen->myNum) #endif WriteReplyToClient(client, sizeof (xAllocNamedColorReply), &ancr); return (client->noClientException); } else return(BadName); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcAllocColorCells (ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xAllocColorCellsReq); REQUEST_SIZE_MATCH(xAllocColorCellsReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixAddAccess); if (rc == Success) { xAllocColorCellsReply accr; int npixels, nmasks; long length; Pixel *ppixels, *pmasks; npixels = stuff->colors; if (!npixels) { client->errorValue = npixels; return (BadValue); } if (stuff->contiguous != xTrue && stuff->contiguous != xFalse) { client->errorValue = stuff->contiguous; return (BadValue); } nmasks = stuff->planes; length = ((long)npixels + (long)nmasks) * sizeof(Pixel); ppixels = xalloc(length); if(!ppixels) return(BadAlloc); pmasks = ppixels + npixels; if( (rc = AllocColorCells(client->index, pcmp, npixels, nmasks, (Bool)stuff->contiguous, ppixels, pmasks)) ) { xfree(ppixels); if (client->noClientException != Success) return(client->noClientException); else return rc; } #ifdef PANORAMIX if (noPanoramiXExtension || !pcmp->pScreen->myNum) #endif { accr.type = X_Reply; accr.length = bytes_to_int32(length); accr.sequenceNumber = client->sequence; accr.nPixels = npixels; accr.nMasks = nmasks; WriteReplyToClient(client, sizeof (xAllocColorCellsReply), &accr); client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; WriteSwappedDataToClient(client, length, ppixels); } xfree(ppixels); return (client->noClientException); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcAllocColorPlanes(ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xAllocColorPlanesReq); REQUEST_SIZE_MATCH(xAllocColorPlanesReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixAddAccess); if (rc == Success) { xAllocColorPlanesReply acpr; int npixels; long length; Pixel *ppixels; npixels = stuff->colors; if (!npixels) { client->errorValue = npixels; return (BadValue); } if (stuff->contiguous != xTrue && stuff->contiguous != xFalse) { client->errorValue = stuff->contiguous; return (BadValue); } acpr.type = X_Reply; acpr.sequenceNumber = client->sequence; acpr.nPixels = npixels; length = (long)npixels * sizeof(Pixel); ppixels = xalloc(length); if(!ppixels) return(BadAlloc); if( (rc = AllocColorPlanes(client->index, pcmp, npixels, (int)stuff->red, (int)stuff->green, (int)stuff->blue, (Bool)stuff->contiguous, ppixels, &acpr.redMask, &acpr.greenMask, &acpr.blueMask)) ) { xfree(ppixels); if (client->noClientException != Success) return(client->noClientException); else return rc; } acpr.length = bytes_to_int32(length); #ifdef PANORAMIX if (noPanoramiXExtension || !pcmp->pScreen->myNum) #endif { WriteReplyToClient(client, sizeof(xAllocColorPlanesReply), &acpr); client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; WriteSwappedDataToClient(client, length, ppixels); } xfree(ppixels); return (client->noClientException); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcFreeColors(ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xFreeColorsReq); REQUEST_AT_LEAST_SIZE(xFreeColorsReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixRemoveAccess); if (rc == Success) { int count; if(pcmp->flags & AllAllocated) return(BadAccess); count = bytes_to_int32((client->req_len << 2) - sizeof(xFreeColorsReq)); rc = FreeColors(pcmp, client->index, count, (Pixel *)&stuff[1], (Pixel)stuff->planeMask); if (client->noClientException != Success) return(client->noClientException); else { client->errorValue = clientErrorValue; return rc; } } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcStoreColors (ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xStoreColorsReq); REQUEST_AT_LEAST_SIZE(xStoreColorsReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixWriteAccess); if (rc == Success) { int count; count = (client->req_len << 2) - sizeof(xStoreColorsReq); if (count % sizeof(xColorItem)) return(BadLength); count /= sizeof(xColorItem); rc = StoreColors(pcmp, count, (xColorItem *)&stuff[1]); if (client->noClientException != Success) return(client->noClientException); else { client->errorValue = clientErrorValue; return rc; } } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcStoreNamedColor (ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xStoreNamedColorReq); REQUEST_FIXED_SIZE(xStoreNamedColorReq, stuff->nbytes); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixWriteAccess); if (rc == Success) { xColorItem def; if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes, &def.red, &def.green, &def.blue)) { def.flags = stuff->flags; def.pixel = stuff->pixel; rc = StoreColors(pcmp, 1, &def); if (client->noClientException != Success) return(client->noClientException); else return rc; } return (BadName); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcQueryColors(ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xQueryColorsReq); REQUEST_AT_LEAST_SIZE(xQueryColorsReq); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixReadAccess); if (rc == Success) { int count; xrgb *prgbs; xQueryColorsReply qcr; count = bytes_to_int32((client->req_len << 2) - sizeof(xQueryColorsReq)); prgbs = xcalloc(1, count * sizeof(xrgb)); if(!prgbs && count) return(BadAlloc); if( (rc = QueryColors(pcmp, count, (Pixel *)&stuff[1], prgbs)) ) { if (prgbs) xfree(prgbs); if (client->noClientException != Success) return(client->noClientException); else { client->errorValue = clientErrorValue; return rc; } } memset(&qcr, 0, sizeof(xQueryColorsReply)); qcr.type = X_Reply; qcr.length = bytes_to_int32(count * sizeof(xrgb)); qcr.sequenceNumber = client->sequence; qcr.nColors = count; WriteReplyToClient(client, sizeof(xQueryColorsReply), &qcr); if (count) { client->pSwapReplyFunc = (ReplySwapPtr) SQColorsExtend; WriteSwappedDataToClient(client, count * sizeof(xrgb), prgbs); } if (prgbs) xfree(prgbs); return(client->noClientException); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcLookupColor(ClientPtr client) { ColormapPtr pcmp; int rc; REQUEST(xLookupColorReq); REQUEST_FIXED_SIZE(xLookupColorReq, stuff->nbytes); rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client, DixReadAccess); if (rc == Success) { xLookupColorReply lcr; if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes, &lcr.exactRed, &lcr.exactGreen, &lcr.exactBlue)) { lcr.type = X_Reply; lcr.length = 0; lcr.sequenceNumber = client->sequence; lcr.screenRed = lcr.exactRed; lcr.screenGreen = lcr.exactGreen; lcr.screenBlue = lcr.exactBlue; (*pcmp->pScreen->ResolveColor)(&lcr.screenRed, &lcr.screenGreen, &lcr.screenBlue, pcmp->pVisual); WriteReplyToClient(client, sizeof(xLookupColorReply), &lcr); return(client->noClientException); } return (BadName); } else { client->errorValue = stuff->cmap; return (rc == BadValue) ? BadColor : rc; } } int ProcCreateCursor (ClientPtr client) { CursorPtr pCursor; PixmapPtr src; PixmapPtr msk; unsigned char * srcbits; unsigned char * mskbits; unsigned short width, height; long n; CursorMetricRec cm; int rc; REQUEST(xCreateCursorReq); REQUEST_SIZE_MATCH(xCreateCursorReq); LEGAL_NEW_RESOURCE(stuff->cid, client); rc = dixLookupResourceByType((pointer *)&src, stuff->source, RT_PIXMAP, client, DixReadAccess); if (rc != Success) { client->errorValue = stuff->source; return (rc == BadValue) ? BadPixmap : rc; } rc = dixLookupResourceByType((pointer *)&msk, stuff->mask, RT_PIXMAP, client, DixReadAccess); if (rc != Success) { if (stuff->mask != None) { client->errorValue = stuff->mask; return (rc == BadValue) ? BadPixmap : rc; } } else if ( src->drawable.width != msk->drawable.width || src->drawable.height != msk->drawable.height || src->drawable.depth != 1 || msk->drawable.depth != 1) return (BadMatch); width = src->drawable.width; height = src->drawable.height; if ( stuff->x > width || stuff->y > height ) return (BadMatch); n = BitmapBytePad(width)*height; srcbits = xcalloc(1, n); if (!srcbits) return (BadAlloc); mskbits = xalloc(n); if (!mskbits) { xfree(srcbits); return (BadAlloc); } (* src->drawable.pScreen->GetImage)( (DrawablePtr)src, 0, 0, width, height, XYPixmap, 1, (pointer)srcbits); if ( msk == (PixmapPtr)NULL) { unsigned char *bits = mskbits; while (--n >= 0) *bits++ = ~0; } else { /* zeroing the (pad) bits helps some ddx cursor handling */ bzero((char *)mskbits, n); (* msk->drawable.pScreen->GetImage)( (DrawablePtr)msk, 0, 0, width, height, XYPixmap, 1, (pointer)mskbits); } cm.width = width; cm.height = height; cm.xhot = stuff->x; cm.yhot = stuff->y; rc = AllocARGBCursor(srcbits, mskbits, NULL, &cm, stuff->foreRed, stuff->foreGreen, stuff->foreBlue, stuff->backRed, stuff->backGreen, stuff->backBlue, &pCursor, client, stuff->cid); if (rc != Success) return rc; if (!AddResource(stuff->cid, RT_CURSOR, (pointer)pCursor)) return BadAlloc; return client->noClientException; } int ProcCreateGlyphCursor (ClientPtr client) { CursorPtr pCursor; int res; REQUEST(xCreateGlyphCursorReq); REQUEST_SIZE_MATCH(xCreateGlyphCursorReq); LEGAL_NEW_RESOURCE(stuff->cid, client); res = AllocGlyphCursor(stuff->source, stuff->sourceChar, stuff->mask, stuff->maskChar, stuff->foreRed, stuff->foreGreen, stuff->foreBlue, stuff->backRed, stuff->backGreen, stuff->backBlue, &pCursor, client, stuff->cid); if (res != Success) return res; if (AddResource(stuff->cid, RT_CURSOR, (pointer)pCursor)) return client->noClientException; return BadAlloc; } int ProcFreeCursor (ClientPtr client) { CursorPtr pCursor; int rc; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); rc = dixLookupResourceByType((pointer *)&pCursor, stuff->id, RT_CURSOR, client, DixDestroyAccess); if (rc == Success) { FreeResource(stuff->id, RT_NONE); return (client->noClientException); } else { client->errorValue = stuff->id; return (rc == BadValue) ? BadCursor : rc; } } int ProcQueryBestSize (ClientPtr client) { xQueryBestSizeReply reply; DrawablePtr pDraw; ScreenPtr pScreen; int rc; REQUEST(xQueryBestSizeReq); REQUEST_SIZE_MATCH(xQueryBestSizeReq); if ((stuff->class != CursorShape) && (stuff->class != TileShape) && (stuff->class != StippleShape)) { client->errorValue = stuff->class; return(BadValue); } rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY, DixGetAttrAccess); if (rc != Success) return rc; if (stuff->class != CursorShape && pDraw->type == UNDRAWABLE_WINDOW) return (BadMatch); pScreen = pDraw->pScreen; rc = XaceHook(XACE_SCREEN_ACCESS, client, pScreen, DixGetAttrAccess); if (rc != Success) return rc; (* pScreen->QueryBestSize)(stuff->class, &stuff->width, &stuff->height, pScreen); memset(&reply, 0, sizeof(xQueryBestSizeReply)); reply.type = X_Reply; reply.length = 0; reply.sequenceNumber = client->sequence; reply.width = stuff->width; reply.height = stuff->height; WriteReplyToClient(client, sizeof(xQueryBestSizeReply), &reply); return (client->noClientException); } int ProcSetScreenSaver (ClientPtr client) { int rc, i, blankingOption, exposureOption; REQUEST(xSetScreenSaverReq); REQUEST_SIZE_MATCH(xSetScreenSaverReq); for (i = 0; i < screenInfo.numScreens; i++) { rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i], DixSetAttrAccess); if (rc != Success) return rc; } blankingOption = stuff->preferBlank; if ((blankingOption != DontPreferBlanking) && (blankingOption != PreferBlanking) && (blankingOption != DefaultBlanking)) { client->errorValue = blankingOption; return BadValue; } exposureOption = stuff->allowExpose; if ((exposureOption != DontAllowExposures) && (exposureOption != AllowExposures) && (exposureOption != DefaultExposures)) { client->errorValue = exposureOption; return BadValue; } if (stuff->timeout < -1) { client->errorValue = stuff->timeout; return BadValue; } if (stuff->interval < -1) { client->errorValue = stuff->interval; return BadValue; } if (blankingOption == DefaultBlanking) ScreenSaverBlanking = defaultScreenSaverBlanking; else ScreenSaverBlanking = blankingOption; if (exposureOption == DefaultExposures) ScreenSaverAllowExposures = defaultScreenSaverAllowExposures; else ScreenSaverAllowExposures = exposureOption; if (stuff->timeout >= 0) ScreenSaverTime = stuff->timeout * MILLI_PER_SECOND; else ScreenSaverTime = defaultScreenSaverTime; if (stuff->interval >= 0) ScreenSaverInterval = stuff->interval * MILLI_PER_SECOND; else ScreenSaverInterval = defaultScreenSaverInterval; SetScreenSaverTimer(); return (client->noClientException); } int ProcGetScreenSaver(ClientPtr client) { xGetScreenSaverReply rep; int rc, i; REQUEST_SIZE_MATCH(xReq); for (i = 0; i < screenInfo.numScreens; i++) { rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i], DixGetAttrAccess); if (rc != Success) return rc; } rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; rep.timeout = ScreenSaverTime / MILLI_PER_SECOND; rep.interval = ScreenSaverInterval / MILLI_PER_SECOND; rep.preferBlanking = ScreenSaverBlanking; rep.allowExposures = ScreenSaverAllowExposures; WriteReplyToClient(client, sizeof(xGetScreenSaverReply), &rep); return (client->noClientException); } int ProcChangeHosts(ClientPtr client) { REQUEST(xChangeHostsReq); int result; REQUEST_FIXED_SIZE(xChangeHostsReq, stuff->hostLength); if(stuff->mode == HostInsert) result = AddHost(client, (int)stuff->hostFamily, stuff->hostLength, (pointer)&stuff[1]); else if (stuff->mode == HostDelete) result = RemoveHost(client, (int)stuff->hostFamily, stuff->hostLength, (pointer)&stuff[1]); else { client->errorValue = stuff->mode; return BadValue; } if (!result) result = client->noClientException; return (result); } int ProcListHosts(ClientPtr client) { xListHostsReply reply; int len, nHosts, result; pointer pdata; /* REQUEST(xListHostsReq); */ REQUEST_SIZE_MATCH(xListHostsReq); /* untrusted clients can't list hosts */ result = XaceHook(XACE_SERVER_ACCESS, client, DixReadAccess); if (result != Success) return result; result = GetHosts(&pdata, &nHosts, &len, &reply.enabled); if (result != Success) return(result); reply.type = X_Reply; reply.sequenceNumber = client->sequence; reply.nHosts = nHosts; reply.length = bytes_to_int32(len); WriteReplyToClient(client, sizeof(xListHostsReply), &reply); if (nHosts) { client->pSwapReplyFunc = (ReplySwapPtr) SLHostsExtend; WriteSwappedDataToClient(client, len, pdata); } xfree(pdata); return (client->noClientException); } int ProcChangeAccessControl(ClientPtr client) { int result; REQUEST(xSetAccessControlReq); REQUEST_SIZE_MATCH(xSetAccessControlReq); if ((stuff->mode != EnableAccess) && (stuff->mode != DisableAccess)) { client->errorValue = stuff->mode; return BadValue; } result = ChangeAccessControl(client, stuff->mode == EnableAccess); if (!result) result = client->noClientException; return (result); } /********************* * CloseDownRetainedResources * * Find all clients that are gone and have terminated in RetainTemporary * and destroy their resources. *********************/ static void CloseDownRetainedResources(void) { int i; ClientPtr client; for (i=1; icloseDownMode == RetainTemporary) && (client->clientGone)) CloseDownClient(client); } } int ProcKillClient(ClientPtr client) { REQUEST(xResourceReq); ClientPtr killclient; int rc; REQUEST_SIZE_MATCH(xResourceReq); if (stuff->id == AllTemporary) { CloseDownRetainedResources(); return (client->noClientException); } rc = dixLookupClient(&killclient, stuff->id, client, DixDestroyAccess); if (rc == Success) { CloseDownClient(killclient); /* if an LBX proxy gets killed, isItTimeToYield will be set */ if (isItTimeToYield || (client == killclient)) { /* force yield and return Success, so that Dispatch() * doesn't try to touch client */ isItTimeToYield = TRUE; return (Success); } return (client->noClientException); } else return rc; } int ProcSetFontPath(ClientPtr client) { unsigned char *ptr; unsigned long nbytes, total; long nfonts; int n, result; int error; REQUEST(xSetFontPathReq); REQUEST_AT_LEAST_SIZE(xSetFontPathReq); nbytes = (client->req_len << 2) - sizeof(xSetFontPathReq); total = nbytes; ptr = (unsigned char *)&stuff[1]; nfonts = stuff->nFonts; while (--nfonts >= 0) { if ((total == 0) || (total < (n = (*ptr + 1)))) return(BadLength); total -= n; ptr += n; } if (total >= 4) return(BadLength); result = SetFontPath(client, stuff->nFonts, (unsigned char *)&stuff[1], &error); if (!result) { result = client->noClientException; client->errorValue = error; } return (result); } int ProcGetFontPath(ClientPtr client) { xGetFontPathReply reply; int rc, stringLens, numpaths; unsigned char *bufferStart; /* REQUEST (xReq); */ REQUEST_SIZE_MATCH(xReq); rc = GetFontPath(client, &numpaths, &stringLens, &bufferStart); if (rc != Success) return rc; reply.type = X_Reply; reply.sequenceNumber = client->sequence; reply.length = bytes_to_int32(stringLens + numpaths); reply.nPaths = numpaths; WriteReplyToClient(client, sizeof(xGetFontPathReply), &reply); if (stringLens || numpaths) (void)WriteToClient(client, stringLens + numpaths, (char *)bufferStart); return(client->noClientException); } int ProcChangeCloseDownMode(ClientPtr client) { int rc; REQUEST(xSetCloseDownModeReq); REQUEST_SIZE_MATCH(xSetCloseDownModeReq); rc = XaceHook(XACE_CLIENT_ACCESS, client, client, DixManageAccess); if (rc != Success) return rc; if ((stuff->mode == AllTemporary) || (stuff->mode == RetainPermanent) || (stuff->mode == RetainTemporary)) { client->closeDownMode = stuff->mode; return (client->noClientException); } else { client->errorValue = stuff->mode; return (BadValue); } } int ProcForceScreenSaver(ClientPtr client) { int rc; REQUEST(xForceScreenSaverReq); REQUEST_SIZE_MATCH(xForceScreenSaverReq); if ((stuff->mode != ScreenSaverReset) && (stuff->mode != ScreenSaverActive)) { client->errorValue = stuff->mode; return BadValue; } rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, (int)stuff->mode); if (rc != Success) return rc; return client->noClientException; } int ProcNoOperation(ClientPtr client) { REQUEST_AT_LEAST_SIZE(xReq); /* noop -- don't do anything */ return(client->noClientException); } void InitProcVectors(void) { int i; for (i = 0; i<256; i++) { if(!ProcVector[i]) { ProcVector[i] = SwappedProcVector[i] = ProcBadRequest; ReplySwapVector[i] = ReplyNotSwappd; } } for(i = LASTEvent; i < 128; i++) { EventSwapVector[i] = NotImplemented; } } /********************** * CloseDownClient * * Client can either mark his resources destroy or retain. If retained and * then killed again, the client is really destroyed. *********************/ char dispatchExceptionAtReset = DE_RESET; void CloseDownClient(ClientPtr client) { Bool really_close_down = client->clientGone || client->closeDownMode == DestroyAll; if (!client->clientGone) { /* ungrab server if grabbing client dies */ if (grabState != GrabNone && grabClient == client) { UngrabServer(client); } BITCLEAR(grabWaiters, client->index); DeleteClientFromAnySelections(client); ReleaseActiveGrabs(client); DeleteClientFontStuff(client); if (!really_close_down) { /* This frees resources that should never be retained * no matter what the close down mode is. Actually we * could do this unconditionally, but it's probably * better not to traverse all the client's resources * twice (once here, once a few lines down in * FreeClientResources) in the common case of * really_close_down == TRUE. */ FreeClientNeverRetainResources(client); client->clientState = ClientStateRetained; if (ClientStateCallback) { NewClientInfoRec clientinfo; clientinfo.client = client; clientinfo.prefix = (xConnSetupPrefix *)NULL; clientinfo.setup = (xConnSetup *) NULL; CallCallbacks((&ClientStateCallback), (pointer)&clientinfo); } } client->clientGone = TRUE; /* so events aren't sent to client */ if (ClientIsAsleep(client)) ClientSignal (client); ProcessWorkQueueZombies(); CloseDownConnection(client); /* If the client made it to the Running stage, nClients has * been incremented on its behalf, so we need to decrement it * now. If it hasn't gotten to Running, nClients has *not* * been incremented, so *don't* decrement it. */ if (client->clientState != ClientStateInitial && client->clientState != ClientStateAuthenticating ) { --nClients; } } if (really_close_down) { if (client->clientState == ClientStateRunning && nClients == 0) dispatchException |= dispatchExceptionAtReset; client->clientState = ClientStateGone; if (ClientStateCallback) { NewClientInfoRec clientinfo; clientinfo.client = client; clientinfo.prefix = (xConnSetupPrefix *)NULL; clientinfo.setup = (xConnSetup *) NULL; CallCallbacks((&ClientStateCallback), (pointer)&clientinfo); } FreeClientResources(client); #ifdef XSERVER_DTRACE XSERVER_CLIENT_DISCONNECT(client->index); #endif if (client->index < nextFreeClientID) nextFreeClientID = client->index; clients[client->index] = NullClient; SmartLastClient = NullClient; dixFreePrivates(client->devPrivates); xfree(client); while (!clients[currentMaxClients-1]) currentMaxClients--; } } static void KillAllClients(void) { int i; for (i=1; icloseDownMode = DestroyAll; CloseDownClient(clients[i]); } } void InitClient(ClientPtr client, int i, pointer ospriv) { memset(client, 0, sizeof(*client)); client->index = i; client->clientAsMask = ((Mask)i) << CLIENTOFFSET; client->closeDownMode = i ? DestroyAll : RetainPermanent; client->requestVector = InitialVector; client->osPrivate = ospriv; QueryMinMaxKeyCodes(&client->minKC,&client->maxKC); client->smart_start_tick = SmartScheduleTime; client->smart_stop_tick = SmartScheduleTime; client->smart_check_tick = SmartScheduleTime; } /************************ * int NextAvailableClient(ospriv) * * OS dependent portion can't assign client id's because of CloseDownModes. * Returns NULL if there are no free clients. *************************/ ClientPtr NextAvailableClient(pointer ospriv) { int i; ClientPtr client; xReq data; i = nextFreeClientID; if (i == MAXCLIENTS) return (ClientPtr)NULL; clients[i] = client = xalloc(sizeof(ClientRec)); if (!client) return (ClientPtr)NULL; InitClient(client, i, ospriv); if (!InitClientResources(client)) { xfree(client); return (ClientPtr)NULL; } data.reqType = 1; data.length = bytes_to_int32(sz_xReq + sz_xConnClientPrefix); if (!InsertFakeRequest(client, (char *)&data, sz_xReq)) { FreeClientResources(client); xfree(client); return (ClientPtr)NULL; } if (i == currentMaxClients) currentMaxClients++; while ((nextFreeClientID < MAXCLIENTS) && clients[nextFreeClientID]) nextFreeClientID++; if (ClientStateCallback) { NewClientInfoRec clientinfo; clientinfo.client = client; clientinfo.prefix = (xConnSetupPrefix *)NULL; clientinfo.setup = (xConnSetup *) NULL; CallCallbacks((&ClientStateCallback), (pointer)&clientinfo); } return(client); } int ProcInitialConnection(ClientPtr client) { REQUEST(xReq); xConnClientPrefix *prefix; int whichbyte = 1; prefix = (xConnClientPrefix *)((char *)stuff + sz_xReq); if ((prefix->byteOrder != 'l') && (prefix->byteOrder != 'B')) return (client->noClientException = -1); if (((*(char *) &whichbyte) && (prefix->byteOrder == 'B')) || (!(*(char *) &whichbyte) && (prefix->byteOrder == 'l'))) { client->swapped = TRUE; SwapConnClientPrefix(prefix); } stuff->reqType = 2; stuff->length += bytes_to_int32(prefix->nbytesAuthProto) + bytes_to_int32(prefix->nbytesAuthString); if (client->swapped) { swaps(&stuff->length, whichbyte); } ResetCurrentRequest(client); return (client->noClientException); } static int SendConnSetup(ClientPtr client, char *reason) { xWindowRoot *root; int i; int numScreens; char* lConnectionInfo; xConnSetupPrefix* lconnSetupPrefix; if (reason) { xConnSetupPrefix csp; csp.success = xFalse; csp.lengthReason = strlen(reason); csp.length = bytes_to_int32(csp.lengthReason); csp.majorVersion = X_PROTOCOL; csp.minorVersion = X_PROTOCOL_REVISION; if (client->swapped) WriteSConnSetupPrefix(client, &csp); else (void)WriteToClient(client, sz_xConnSetupPrefix, (char *) &csp); (void)WriteToClient(client, (int)csp.lengthReason, reason); return (client->noClientException = -1); } numScreens = screenInfo.numScreens; lConnectionInfo = ConnectionInfo; lconnSetupPrefix = &connSetupPrefix; /* We're about to start speaking X protocol back to the client by * sending the connection setup info. This means the authorization * step is complete, and we can count the client as an * authorized one. */ nClients++; client->requestVector = client->swapped ? SwappedProcVector : ProcVector; client->sequence = 0; ((xConnSetup *)lConnectionInfo)->ridBase = client->clientAsMask; ((xConnSetup *)lConnectionInfo)->ridMask = RESOURCE_ID_MASK; #ifdef MATCH_CLIENT_ENDIAN ((xConnSetup *)lConnectionInfo)->imageByteOrder = ClientOrder (client); ((xConnSetup *)lConnectionInfo)->bitmapBitOrder = ClientOrder (client); #endif /* fill in the "currentInputMask" */ root = (xWindowRoot *)(lConnectionInfo + connBlockScreenStart); #ifdef PANORAMIX if (noPanoramiXExtension) numScreens = screenInfo.numScreens; else numScreens = ((xConnSetup *)ConnectionInfo)->numRoots; #endif for (i=0; icurrentInputMask = WindowTable[i]->eventMask | wOtherEventMasks (WindowTable[i]); pDepth = (xDepth *)(root + 1); for (j = 0; j < root->nDepths; j++) { pDepth = (xDepth *)(((char *)(pDepth + 1)) + pDepth->nVisuals * sizeof(xVisualType)); } root = (xWindowRoot *)pDepth; } if (client->swapped) { WriteSConnSetupPrefix(client, lconnSetupPrefix); WriteSConnectionInfo(client, (unsigned long)(lconnSetupPrefix->length << 2), lConnectionInfo); } else { (void)WriteToClient(client, sizeof(xConnSetupPrefix), (char *) lconnSetupPrefix); (void)WriteToClient(client, (int)(lconnSetupPrefix->length << 2), lConnectionInfo); } client->clientState = ClientStateRunning; if (ClientStateCallback) { NewClientInfoRec clientinfo; clientinfo.client = client; clientinfo.prefix = lconnSetupPrefix; clientinfo.setup = (xConnSetup *)lConnectionInfo; CallCallbacks((&ClientStateCallback), (pointer)&clientinfo); } return (client->noClientException); } int ProcEstablishConnection(ClientPtr client) { char *reason, *auth_proto, *auth_string; xConnClientPrefix *prefix; REQUEST(xReq); prefix = (xConnClientPrefix *)((char *)stuff + sz_xReq); auth_proto = (char *)prefix + sz_xConnClientPrefix; auth_string = auth_proto + pad_to_int32(prefix->nbytesAuthProto); if ((prefix->majorVersion != X_PROTOCOL) || (prefix->minorVersion != X_PROTOCOL_REVISION)) reason = "Protocol version mismatch"; else reason = ClientAuthorized(client, (unsigned short)prefix->nbytesAuthProto, auth_proto, (unsigned short)prefix->nbytesAuthString, auth_string); /* * If Kerberos is being used for this client, the clientState * will be set to ClientStateAuthenticating at this point. * More messages need to be exchanged among the X server, Kerberos * server, and client to figure out if everyone is authorized. * So we don't want to send the connection setup info yet, since * the auth step isn't really done. */ if (client->clientState == ClientStateCheckingSecurity) client->clientState = ClientStateCheckedSecurity; else if (client->clientState != ClientStateAuthenticating) return(SendConnSetup(client, reason)); return(client->noClientException); } void SendErrorToClient(ClientPtr client, unsigned majorCode, unsigned minorCode, XID resId, int errorCode) { xError rep; memset(&rep, 0, sizeof(xError)); rep.type = X_Error; rep.sequenceNumber = client->sequence; rep.errorCode = errorCode; rep.majorCode = majorCode; rep.minorCode = minorCode; rep.resourceID = resId; WriteEventsToClient (client, 1, (xEvent *)&rep); } void MarkClientException(ClientPtr client) { client->noClientException = -1; } /* * This array encodes the answer to the question "what is the log base 2 * of the number of pixels that fit in a scanline pad unit?" * Note that ~0 is an invalid entry (mostly for the benefit of the reader). */ static int answer[6][4] = { /* pad pad pad pad*/ /* 8 16 32 64 */ { 3, 4, 5 , 6 }, /* 1 bit per pixel */ { 1, 2, 3 , 4 }, /* 4 bits per pixel */ { 0, 1, 2 , 3 }, /* 8 bits per pixel */ { ~0, 0, 1 , 2 }, /* 16 bits per pixel */ { ~0, ~0, 0 , 1 }, /* 24 bits per pixel */ { ~0, ~0, 0 , 1 } /* 32 bits per pixel */ }; /* * This array gives the answer to the question "what is the first index for * the answer array above given the number of bits per pixel?" * Note that ~0 is an invalid entry (mostly for the benefit of the reader). */ static int indexForBitsPerPixel[ 33 ] = { ~0, 0, ~0, ~0, /* 1 bit per pixel */ 1, ~0, ~0, ~0, /* 4 bits per pixel */ 2, ~0, ~0, ~0, /* 8 bits per pixel */ ~0,~0, ~0, ~0, 3, ~0, ~0, ~0, /* 16 bits per pixel */ ~0,~0, ~0, ~0, 4, ~0, ~0, ~0, /* 24 bits per pixel */ ~0,~0, ~0, ~0, 5 /* 32 bits per pixel */ }; /* * This array gives the bytesperPixel value for cases where the number * of bits per pixel is a multiple of 8 but not a power of 2. */ static int answerBytesPerPixel[ 33 ] = { ~0, 0, ~0, ~0, /* 1 bit per pixel */ 0, ~0, ~0, ~0, /* 4 bits per pixel */ 0, ~0, ~0, ~0, /* 8 bits per pixel */ ~0,~0, ~0, ~0, 0, ~0, ~0, ~0, /* 16 bits per pixel */ ~0,~0, ~0, ~0, 3, ~0, ~0, ~0, /* 24 bits per pixel */ ~0,~0, ~0, ~0, 0 /* 32 bits per pixel */ }; /* * This array gives the answer to the question "what is the second index for * the answer array above given the number of bits per scanline pad unit?" * Note that ~0 is an invalid entry (mostly for the benefit of the reader). */ static int indexForScanlinePad[ 65 ] = { ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, 0, ~0, ~0, ~0, /* 8 bits per scanline pad unit */ ~0, ~0, ~0, ~0, 1, ~0, ~0, ~0, /* 16 bits per scanline pad unit */ ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, 2, ~0, ~0, ~0, /* 32 bits per scanline pad unit */ ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, ~0, 3 /* 64 bits per scanline pad unit */ }; /* grow the array of screenRecs if necessary. call the device-supplied initialization procedure with its screen number, a pointer to its ScreenRec, argc, and argv. return the number of successfully installed screens. */ int AddScreen( Bool (* pfnInit)( int /*index*/, ScreenPtr /*pScreen*/, int /*argc*/, char ** /*argv*/ ), int argc, char **argv) { int i; int scanlinepad, format, depth, bitsPerPixel, j, k; ScreenPtr pScreen; i = screenInfo.numScreens; if (i == MAXSCREENS) return -1; pScreen = (ScreenPtr) xcalloc(1, sizeof(ScreenRec)); if (!pScreen) return -1; pScreen->devPrivates = NULL; pScreen->myNum = i; pScreen->totalPixmapSize = BitmapBytePad(sizeof(PixmapRec)*8); pScreen->ClipNotify = 0; /* for R4 ddx compatibility */ pScreen->CreateScreenResources = 0; /* * This loop gets run once for every Screen that gets added, * but thats ok. If the ddx layer initializes the formats * one at a time calling AddScreen() after each, then each * iteration will make it a little more accurate. Worst case * we do this loop N * numPixmapFormats where N is # of screens. * Anyway, this must be called after InitOutput and before the * screen init routine is called. */ for (format=0; formatrgf = ~0L; /* there are no scratch GCs yet*/ WindowTable[i] = NullWindow; screenInfo.screens[i] = pScreen; screenInfo.numScreens++; if (!(*pfnInit)(i, pScreen, argc, argv)) { dixFreePrivates(pScreen->devPrivates); xfree(pScreen); screenInfo.numScreens--; return -1; } return i; }