/**************************************************************************/ /* */ /* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ /* Copyright (c) 2008-2014 Oleksandr Shneyder */ /* Copyright (c) 2011-2016 Mike Gabriel */ /* Copyright (c) 2014-2016 Mihai Moldovan */ /* Copyright (c) 2014-2016 Ulrich Sibiller */ /* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ /* */ /* NXAGENT, NX protocol compression and NX extensions to this software */ /* are copyright of the aforementioned persons and companies. */ /* */ /* Redistribution and use of the present software is allowed according */ /* to terms specified in the file LICENSE which comes in the source */ /* distribution. */ /* */ /* All rights reserved. */ /* */ /* NOTE: This software has received contributions from various other */ /* contributors, only the core maintainers and supporters are listed as */ /* copyright holders. Please contact us, if you feel you should be listed */ /* as copyright holder, as well. */ /* */ /**************************************************************************/ /************************************************************ 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. ******************************************************************/ #ifdef __sun #define False 0 #define True 1 #endif #include #define GC XlibGC #include #undef GC #include "../../dix/dispatch.c" #include "windowstr.h" #include "Atoms.h" #include "Splash.h" #include "Client.h" #include "Clipboard.h" #include "Reconnect.h" #include "Millis.h" #include "Font.h" #include #include "Handlers.h" #include "Keyboard.h" const int nxagentMaxFontNames = 10000; char dispatchExceptionAtReset = DE_RESET; /* * This allows the agent to exit if no * client is connected within a timeout. */ int nxagentClients = 0; void nxagentWaitDisplay(void); void nxagentListRemoteFonts(const char *, int); /* * Timeouts based on screen saver time. */ int nxagentAutoDisconnectTimeout = 0; #include "Xatom.h" /* * Set here the required log level. */ #define PANIC #define WARNING #undef TEST #undef WATCH /* * Log begin and end of the important handlers. */ #undef BLOCKS #ifdef WATCH #include "unistd.h" #endif #ifdef TEST #include "Literals.h" #endif #ifdef VIEWPORT_FRAME extern WindowPtr nxagentViewportFrameLeft; extern WindowPtr nxagentViewportFrameRight; extern WindowPtr nxagentViewportFrameAbove; extern WindowPtr nxagentViewportFrameBelow; #define IsViewportFrame(pWin) ((pWin) == nxagentViewportFrameLeft || \ (pWin) == nxagentViewportFrameRight || \ (pWin) == nxagentViewportFrameAbove || \ (pWin) == nxagentViewportFrameBelow) #else #define IsViewportFrame(pWin) (0) #endif /* #ifdef VIEWPORT_FRAME */ extern int nxagentMaxAllowedResets; extern int nxagentFindClientResource(int, RESTYPE, void *); void InitSelections() { if (CurrentSelections) free(CurrentSelections); CurrentSelections = (Selection *)NULL; NumCurrentSelections = 0; #ifdef NXAGENT_CLIPBOARD { Selection *newsels; newsels = (Selection *)malloc(2 * sizeof(Selection)); if (!newsels) return; NumCurrentSelections += 2; CurrentSelections = newsels; CurrentSelections[0].selection = XA_PRIMARY; CurrentSelections[0].lastTimeChanged = ClientTimeToServerTime(0); CurrentSelections[0].window = screenInfo.screens[0]->root->drawable.id; CurrentSelections[0].pWin = NULL; CurrentSelections[0].client = NullClient; CurrentSelections[1].selection = MakeAtom("CLIPBOARD", 9, 1); CurrentSelections[1].lastTimeChanged = ClientTimeToServerTime(0); CurrentSelections[1].window = screenInfo.screens[0]->root->drawable.id; CurrentSelections[1].pWin = NULL; CurrentSelections[1].client = NullClient; } #endif } #define MAJOROP ((xReq *)client->requestBuffer)->reqType void Dispatch(void) { register int *clientReady; /* array of request ready clients */ register int result; register ClientPtr client; register int nready; register HWEventQueuePtr* icheck = checkForInput; long start_tick; nextFreeClientID = 1; InitSelections(); nClients = 0; /* * The agent initialization was successfully * completed. We can now handle our clients. */ #ifdef XKB nxagentInitXkbWrapper(); nxagentTuneXkbWrapper(); #endif #ifdef NXAGENT_ONSTART /* * Set NX_WM property (used by NX client to identify the agent's * window) three seconds since the first client connects. */ unsigned int nxagentWMtimeout = GetTimeInMillis() + 3000; #endif clientReady = (int *) malloc(sizeof(int) * MaxClients); if (!clientReady) return; #ifdef WATCH fprintf(stderr, "Dispatch: Watchpoint 12.\n"); /* Reply Total Cached Bits In Bits Out Bits/Reply Ratio ------- ----- ------ ------- -------- ---------- ----- #3 1 352 bits (0 KB) -> 236 bits (0 KB) -> 352/1 -> 236/1 = 1.492:1 #14 1 256 bits (0 KB) -> 101 bits (0 KB) -> 256/1 -> 101/1 = 2.535:1 #16 1 256 bits (0 KB) -> 26 bits (0 KB) -> 256/1 -> 26/1 = 9.846:1 #20 2 2 12256 bits (1 KB) -> 56 bits (0 KB) -> 6128/1 -> 28/1 = 218.857:1 #43 1 256 bits (0 KB) -> 45 bits (0 KB) -> 256/1 -> 45/1 = 5.689:1 #47 2 2 42304 bits (5 KB) -> 49 bits (0 KB) -> 21152/1 -> 24/1 = 863.347:1 #98 1 256 bits (0 KB) -> 34 bits (0 KB) -> 256/1 -> 34/1 = 7.529:1 */ sleep(30); #endif #ifdef TEST fprintf(stderr, "Dispatch: Value of dispatchException is [%x].\n", dispatchException); fprintf(stderr, "Dispatch: Value of dispatchExceptionAtReset is [%x].\n", dispatchExceptionAtReset); #endif if (!(dispatchException & DE_TERMINATE)) dispatchException = 0; while (!dispatchException) { if (*icheck[0] != *icheck[1]) { ProcessInputEvents(); FlushIfCriticalOutputPending(); } /* * Ensure we remove the splash after the timeout. * Initializing clientReady[0] to -1 will tell * WaitForSomething() to yield control after the * timeout set in clientReady[1]. */ clientReady[0] = 0; if (nxagentSplashWindow != None || (nxagentOption(Xdmcp) == 1 && nxagentXdmcpUp == 0)) { #ifdef TEST fprintf(stderr, "******Dispatch: Requesting a timeout of [%d] Ms.\n", NXAGENT_WAKEUP); #endif clientReady[0] = -1; clientReady[1] = NXAGENT_WAKEUP; } if (serverGeneration > nxagentMaxAllowedResets && nxagentSessionState == SESSION_STARTING && (nxagentOption(Xdmcp) == 0 || nxagentXdmcpUp == 1)) { #ifdef NX_DEBUG_INPUT fprintf(stderr, "Session: Session started at '%s' timestamp [%lu].\n", GetTimeAsString(), GetTimeInMillis()); #else fprintf(stderr, "Session: Session started at '%s'.\n", GetTimeAsString()); #endif nxagentSessionState = SESSION_UP; saveAgentState("RUNNING"); } #ifdef BLOCKS fprintf(stderr, "[End dispatch]\n"); #endif nready = WaitForSomething(clientReady); #ifdef BLOCKS fprintf(stderr, "[Begin dispatch]\n"); #endif #ifdef TEST fprintf(stderr, "******Dispatch: Running with [%d] clients ready.\n", nready); #endif #ifdef NXAGENT_ONSTART /* * If the timeout is expired set the selection informing the * NX client that the agent is ready. */ if (nxagentWMtimeout < GetTimeInMillis()) { nxagentRemoveSplashWindow(); } nxagentClients = nClients; #endif if (nready) { 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; requestingClient = client; start_tick = SmartScheduleTime; while (!isItTimeToYield) { if (*icheck[0] != *icheck[1]) { ProcessInputEvents(); FlushIfCriticalOutputPending(); } if ((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 */ #ifdef TEST fprintf(stderr, "******Dispatch: Reading request from client [%d].\n", client->index); #endif result = ReadRequestFromClient(client); if (result <= 0) { if (result < 0) CloseDownClient(client); break; } #ifdef NXAGENT_SERVER #ifdef TEST else { if (MAJOROP > 127) { fprintf(stderr, "******Dispatch: Read [Extension] request OPCODE#%d MINOR#%d " "size [%d] client [%d].\n", MAJOROP, *((char *) client->requestBuffer + 1), client->req_len << 2, client->index); } else { fprintf(stderr, "******Dispatch: Read [%s] request OPCODE#%d size [%d] client [%d].\n", nxagentRequestLiteral[MAJOROP], MAJOROP, client->req_len << 2, client->index); } } #endif #endif client->sequence++; if (result > (maxBigRequestSize << 2)) result = BadLength; else #ifdef NXAGENT_SERVER { result = (* client->requestVector[MAJOROP])(client); #ifdef TEST if (MAJOROP > 127) { fprintf(stderr, "******Dispatch: Handled [Extension] request OPCODE#%d MINOR#%d " "size [%d] client [%d] result [%d].\n", MAJOROP, *((char *) client->requestBuffer + 1), client->req_len << 2, client->index, result); } else { fprintf(stderr, "******Dispatch: Handled [%s] request OPCODE#%d size [%d] client [%d] " "result [%d].\n", nxagentRequestLiteral[MAJOROP], MAJOROP, client->req_len << 2, client->index, result); } #endif /* * Can set isItTimeToYield to force * the dispatcher to pay attention * to another client. */ nxagentDispatchHandler(client, client->req_len << 2, 0); } #else result = (* client->requestVector[MAJOROP])(client); #endif if (!SmartScheduleSignalEnable) SmartScheduleTime = GetTimeInMillis(); if (result != Success) { if (client->noClientException != Success) CloseDownClient(client); else SendErrorToClient(client, MAJOROP, MinorOpcodeOfRequest(client), client->errorValue, result); break; } #ifdef DAMAGEEXT FlushIfCriticalOutputPending (); #endif } FlushAllOutput(); client = clients[clientReady[nready]]; if (client) client->smart_stop_tick = SmartScheduleTime; requestingClient = NULL; } dispatchException &= ~DE_PRIORITYCHANGE; } #if defined(DDXBEFORERESET) ddxBeforeReset (); #endif /* FIXME: maybe move the code up to the KillAllClients() call to ddxBeforeReset? */ if ((dispatchException & DE_RESET) && (serverGeneration > nxagentMaxAllowedResets)) { dispatchException &= ~DE_RESET; dispatchException |= DE_TERMINATE; fprintf(stderr, "Info: Reached threshold of maximum allowed resets.\n"); } nxagentResetAtomMap(); if (serverGeneration > nxagentMaxAllowedResets) { /* * The session is terminating. Force an I/O * error on the display and wait until the * NX transport is gone. */ fprintf(stderr, "Session: Terminating session at '%s'.\n", GetTimeAsString()); saveAgentState("TERMINATING"); nxagentWaitDisplay(); fprintf(stderr, "Session: Session terminated at '%s'.\n", GetTimeAsString()); } if (nxagentOption(Shadow) == 1) { NXShadowDestroy(); } saveAgentState("TERMINATED"); KillAllClients(); free(clientReady); dispatchException &= ~DE_RESET; } #undef MAJOROP int ProcReparentWindow(register ClientPtr client) { register WindowPtr pWin, pParent; REQUEST(xReparentWindowReq); register int result; REQUEST_SIZE_MATCH(xReparentWindowReq); pWin = (WindowPtr)SecurityLookupWindow(stuff->window, client, DixWriteAccess); if (!pWin) return(BadWindow); nxagentRemoveSplashWindow(); pParent = (WindowPtr)SecurityLookupWindow(stuff->parent, client, DixWriteAccess); if (!pParent) return(BadWindow); 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 ProcQueryTree(register ClientPtr client) { xQueryTreeReply reply = {0}; int numChildren = 0; register WindowPtr pChild, pWin, pHead; Window *childIDs = (Window *)NULL; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); pWin = (WindowPtr)SecurityLookupWindow(stuff->id, client, DixReadAccess); if (!pWin) return(BadWindow); reply.type = X_Reply; reply.root = pWin->drawable.pScreen->root->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) { if (!IsViewportFrame(pChild)) { numChildren++; } } if (numChildren) { int curChild = 0; childIDs = (Window *) malloc(numChildren * sizeof(Window)); if (!childIDs) return BadAlloc; for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib) { if (!IsViewportFrame(pChild)) { childIDs[curChild++] = pChild->drawable.id; } } } reply.nChildren = numChildren; reply.length = (numChildren * sizeof(Window)) >> 2; WriteReplyToClient(client, sizeof(xQueryTreeReply), &reply); if (numChildren) { client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write; WriteSwappedDataToClient(client, numChildren * sizeof(Window), childIDs); free(childIDs); } return(client->noClientException); } int ProcConvertSelection(register ClientPtr client) { Bool paramsOkay; xEvent event; WindowPtr pWin; REQUEST(xConvertSelectionReq); REQUEST_SIZE_MATCH(xConvertSelectionReq); pWin = (WindowPtr)SecurityLookupWindow(stuff->requestor, client, DixReadAccess); if (!pWin) return(BadWindow); #ifdef NXAGENT_CLIPBOARD if (((stuff->selection == XA_PRIMARY) || (stuff->selection == MakeAtom("CLIPBOARD", 9, 0))) && nxagentOption(Clipboard) != ClipboardNone) { int i = 0; while ((i < NumCurrentSelections) && CurrentSelections[i].selection != stuff->selection) i++; if ((i < NumCurrentSelections) && (CurrentSelections[i].window != None)) { if (nxagentConvertSelection(client, pWin, stuff->selection, stuff->requestor, stuff->property, stuff->target, stuff->time)) { return (client->noClientException); } } } #endif paramsOkay = (ValidAtom(stuff->selection) && ValidAtom(stuff->target)); if (stuff->property != None) paramsOkay &= ValidAtom(stuff->property); if (paramsOkay) { int i; i = 0; while ((i < NumCurrentSelections) && CurrentSelections[i].selection != stuff->selection) i++; if ((i < NumCurrentSelections) && (CurrentSelections[i].window != None) && (CurrentSelections[i].client != NullClient) #ifdef XCSECURITY && (!client->CheckAccess || (* client->CheckAccess)(client, CurrentSelections[i].window, RT_WINDOW, DixReadAccess, CurrentSelections[i].pWin)) #endif ) { memset(&event, 0, sizeof(xEvent)); event.u.u.type = SelectionRequest; event.u.selectionRequest.time = stuff->time; event.u.selectionRequest.owner = CurrentSelections[i].window; event.u.selectionRequest.requestor = stuff->requestor; event.u.selectionRequest.selection = stuff->selection; event.u.selectionRequest.target = stuff->target; event.u.selectionRequest.property = stuff->property; if (TryClientEvents( CurrentSelections[i].client, &event, 1, NoEventMask, NoEventMask /* CantBeFiltered */, NullGrab)) return (client->noClientException); } memset(&event, 0, sizeof(xEvent)); event.u.u.type = SelectionNotify; event.u.selectionNotify.time = stuff->time; event.u.selectionNotify.requestor = stuff->requestor; event.u.selectionNotify.selection = stuff->selection; event.u.selectionNotify.target = stuff->target; event.u.selectionNotify.property = None; (void) TryClientEvents(client, &event, 1, NoEventMask, NoEventMask /* CantBeFiltered */, NullGrab); return (client->noClientException); } else { client->errorValue = stuff->property; return (BadAtom); } } int ProcOpenFont(register ClientPtr client) { int err; char fontReq[256]; REQUEST(xOpenFontReq); REQUEST_FIXED_SIZE(xOpenFontReq, stuff->nbytes); client->errorValue = stuff->fid; LEGAL_NEW_RESOURCE(stuff->fid, client); memcpy(fontReq,(char *)&stuff[1],(stuff->nbytes<256)?stuff->nbytes:255); fontReq[stuff->nbytes]=0; if (strchr(fontReq,'*') || strchr(fontReq,'?')) { extern int nxOpenFont(ClientPtr, XID, Mask, unsigned, char*); #ifdef NXAGENT_FONTMATCH_DEBUG fprintf(stderr, "Dispatch: ProcOpenFont try to find a common font with font pattern=%s\n",fontReq); #endif nxagentListRemoteFonts(fontReq, nxagentMaxFontNames); err = nxOpenFont(client, stuff->fid, (Mask) 0, stuff->nbytes, (char *)&stuff[1]); } else err = OpenFont(client, stuff->fid, (Mask) 0, stuff->nbytes, (char *)&stuff[1]); if (err == Success) { return(client->noClientException); } else return err; } int ProcCloseFont(register ClientPtr client) { FontPtr pFont; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); pFont = (FontPtr)SecurityLookupIDByType(client, stuff->id, RT_FONT, DixDestroyAccess); if (pFont != (FontPtr)NULL) { #ifdef NXAGENT_SERVER /* * When a client closes a font the resource * should not be lost if the reference counter * is not 0, otherwise the server will not be * able to find this font looping through the * resources. */ if (pFont -> refcnt > 0) { if (nxagentFindClientResource(serverClient -> index, RT_NX_FONT, pFont) == 0) { #ifdef TEST fprintf(stderr, "ProcCloseFont: Switching resource for font at [%p].\n", (void *) pFont); #endif nxagentFontPriv(pFont) -> mirrorID = FakeClientID(serverClient -> index); AddResource(nxagentFontPriv(pFont) -> mirrorID, RT_NX_FONT, pFont); } #ifdef TEST else { fprintf(stderr, "ProcCloseFont: Found duplicated font at [%p], " "resource switching skipped.\n", (void *) pFont); } #endif } #endif FreeResource(stuff->id, RT_NONE); return(client->noClientException); } else { client->errorValue = stuff->id; return (BadFont); } } int ProcListFonts(register ClientPtr client) { char tmp[256]; REQUEST(xListFontsReq); REQUEST_FIXED_SIZE(xListFontsReq, stuff->nbytes); memcpy(tmp,(unsigned char *) &stuff[1],(stuff->nbytes<256)?stuff->nbytes:255); tmp[stuff->nbytes]=0; #ifdef NXAGENT_FONTMATCH_DEBUG fprintf(stderr, "Dispatch: ListFont request with pattern %s max_names=%d\n",tmp,stuff->maxNames); #endif nxagentListRemoteFonts(tmp, stuff -> maxNames < nxagentMaxFontNames ? nxagentMaxFontNames : stuff->maxNames); return ListFonts(client, (unsigned char *) &stuff[1], stuff->nbytes, stuff->maxNames); } int ProcListFontsWithInfo(register ClientPtr client) { char tmp[256]; REQUEST(xListFontsWithInfoReq); REQUEST_FIXED_SIZE(xListFontsWithInfoReq, stuff->nbytes); memcpy(tmp,(unsigned char *) &stuff[1],(stuff->nbytes<256)?stuff->nbytes:255); tmp[stuff->nbytes]=0; #ifdef NXAGENT_FONTMATCH_DEBUG fprintf(stderr, "Dispatch: ListFont with info request with pattern %s max_names=%d\n",tmp,stuff->maxNames); #endif nxagentListRemoteFonts(tmp, stuff -> maxNames < nxagentMaxFontNames ? nxagentMaxFontNames :stuff->maxNames); return StartListFontsWithInfo(client, stuff->nbytes, (unsigned char *) &stuff[1], stuff->maxNames); } int ProcFreePixmap(register ClientPtr client) { PixmapPtr pMap; REQUEST(xResourceReq); REQUEST_SIZE_MATCH(xResourceReq); pMap = (PixmapPtr)SecurityLookupIDByType(client, stuff->id, RT_PIXMAP, DixDestroyAccess); if (pMap) { #ifdef NXAGENT_SERVER /* * When a client releases a pixmap the resource * should not be lost if the reference counter * is not 0, otherwise the server will not be * able to find this pixmap looping through the * resources. */ if (pMap -> refcnt > 0) { if (nxagentFindClientResource(serverClient -> index, RT_NX_PIXMAP, pMap) == 0) { #ifdef TEST fprintf(stderr, "ProcFreePixmap: Switching resource for pixmap at [%p].\n", (void *) pMap); #endif nxagentPixmapPriv(pMap) -> mid = FakeClientID(serverClient -> index); AddResource(nxagentPixmapPriv(pMap) -> mid, RT_NX_PIXMAP, pMap); } #ifdef TEST else { fprintf(stderr, "ProcFreePixmap: Found duplicated pixmap at [%p], " "resource switching skipped.\n", (void *) pMap); } #endif } #endif FreeResource(stuff->id, RT_NONE); return(client->noClientException); } else { client->errorValue = stuff->id; return (BadPixmap); } } int ProcSetScreenSaver (register ClientPtr client) { int blankingOption, exposureOption; REQUEST(xSetScreenSaverReq); REQUEST_SIZE_MATCH(xSetScreenSaverReq); 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; } /* * The NX agent uses the screen saver procedure * to monitor the user activities and launch its * handlers (like timeout feature), so we can't * always allow the clients to change our values. */ #ifdef TEST fprintf(stderr, "ProcSetScreenSaver: Called with timeout [%d] interval [%d] Blanking [%d] Exposure [%d].\n", stuff -> timeout, stuff -> interval, blankingOption, exposureOption); #endif if (nxagentOption(Timeout) == 0) { 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(); } #ifdef TEST else { fprintf(stderr, "ProcSetScreenSaver: Keeping auto-disconnect timeout set to [%d] seconds.\n", nxagentOption(Timeout)); } #endif return (client->noClientException); } int ProcForceScreenSaver(register ClientPtr client) { REQUEST(xForceScreenSaverReq); REQUEST_SIZE_MATCH(xForceScreenSaverReq); if ((stuff->mode != ScreenSaverReset) && (stuff->mode != ScreenSaverActive)) { client->errorValue = stuff->mode; return BadValue; } /* * The NX agent uses the screen saver procedure * to monitor the user activities and launch its * handlers (like timeout feature), so we can't * always allow the clients to force the screen * saver handler execution. */ if (nxagentOption(Timeout) == 0) { SaveScreens(SCREEN_SAVER_FORCER, (int)stuff->mode); } #ifdef TEST else { fprintf(stderr, "ProcForceScreenSaver: Ignoring the client request with mode [%d].\n", stuff -> mode); } #endif return client->noClientException; } /********************** * CloseDownClient * * Client can either mark his resources destroy or retain. If retained and * then killed again, the client is really destroyed. *********************/ void CloseDownClient(register ClientPtr client) { Bool really_close_down = client->clientGone || client->closeDownMode == DestroyAll; /* * There must be a better way to hook a * call-back function to be called any * time a client is going to be closed. */ nxagentClearClipboard(client, NULL); /* * Need to reset the karma counter and * get rid of the pending sync replies. */ nxagentWakeupByReset(client); /* * Check if the client * is a shadow nxagent. */ nxagentCheckIfShadowAgent(client); 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), (void *)&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), (void *)&clientinfo); } FreeClientResources(client); /* Disable client ID tracking. This must be done after * ClientStateCallback. */ ReleaseClientIds(client); if (client->index < nextFreeClientID) nextFreeClientID = client->index; clients[client->index] = NullClient; SmartLastClient = NullClient; free(client); while (!clients[currentMaxClients-1]) currentMaxClients--; } } int InitClientPrivates(ClientPtr client) { register char *ptr; DevUnion *ppriv; register unsigned *sizes; register unsigned size; register int i; if (totalClientSize == sizeof(ClientRec)) ppriv = (DevUnion *)NULL; else if (client->index) ppriv = (DevUnion *)(client + 1); else { ppriv = (DevUnion *)malloc(totalClientSize - sizeof(ClientRec)); if (!ppriv) return 0; } client->devPrivates = ppriv; sizes = clientPrivateSizes; ptr = (char *)(ppriv + clientPrivateLen); for (i = clientPrivateLen; --i >= 0; ppriv++, sizes++) { if ( (size = *sizes) ) { ppriv->ptr = (void *)ptr; ptr += size; } else ppriv->ptr = (void *)NULL; } /* * Initialize the private members. */ nxagentInitClientPrivates(client); return 1; }