541 lines
19 KiB
C
541 lines
19 KiB
C
/*
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* Copyright 2007-2008 Peter Hutterer
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* Copyright 2009 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Peter Hutterer, University of South Australia, NICTA
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*/
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/***********************************************************************
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*
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* Request change in the device hierarchy.
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h> /* for inputstr.h */
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#include <X11/Xproto.h> /* Request macro */
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#include "inputstr.h" /* DeviceIntPtr */
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#include "windowstr.h" /* window structure */
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#include "scrnintstr.h" /* screen structure */
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XI2proto.h>
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#include <X11/extensions/geproto.h>
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#include "extnsionst.h"
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#include "exevents.h"
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#include "exglobals.h"
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#include "geext.h"
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#include "xace.h"
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#include "querydev.h" /* for GetDeviceUse */
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#include "xkbsrv.h"
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#include "chdevhier.h"
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extern DevPrivateKey XTstDevicePrivateKey;
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/**
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* Send the current state of the device hierarchy to all clients.
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*/
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void XISendDeviceHierarchyEvent(int flags[MAXDEVICES])
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{
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xXIHierarchyEvent *ev;
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xXIHierarchyInfo *info;
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DeviceIntRec dummyDev;
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DeviceIntPtr dev;
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int i;
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if (!flags)
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return;
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ev = xcalloc(1, sizeof(xXIHierarchyEvent) +
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MAXDEVICES * sizeof(xXIHierarchyInfo));
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ev->type = GenericEvent;
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ev->extension = IReqCode;
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ev->evtype = XI_HierarchyChanged;
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ev->time = GetTimeInMillis();
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ev->flags = 0;
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ev->num_info = inputInfo.numDevices;
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info = (xXIHierarchyInfo*)&ev[1];
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for (dev = inputInfo.devices; dev; dev = dev->next)
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{
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info->deviceid = dev->id;
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info->enabled = dev->enabled;
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info->use = GetDeviceUse(dev, &info->attachment);
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info->flags = flags[dev->id];
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ev->flags |= info->flags;
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info++;
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}
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for (dev = inputInfo.off_devices; dev; dev = dev->next)
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{
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info->deviceid = dev->id;
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info->enabled = dev->enabled;
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info->use = GetDeviceUse(dev, &info->attachment);
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info->flags = flags[dev->id];
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ev->flags |= info->flags;
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info++;
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}
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for (i = 0; i < MAXDEVICES; i++)
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{
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if (flags[i] & (XIMasterRemoved | XISlaveRemoved))
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{
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info->deviceid = i;
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info->enabled = FALSE;
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info->flags = flags[i];
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info->use = 0;
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ev->flags |= info->flags;
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ev->num_info++;
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info++;
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}
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}
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ev->length = (ev->num_info * sizeof(xXIHierarchyInfo))/4;
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dummyDev.id = XIAllDevices;
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SendEventToAllWindows(&dummyDev, (XI_HierarchyChangedMask >> 8), (xEvent*)ev, 1);
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}
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/***********************************************************************
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*
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* This procedure allows a client to change the device hierarchy through
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* adding new master devices, removing them, etc.
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*
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*/
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int SProcXIChangeHierarchy(ClientPtr client)
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{
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char n;
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REQUEST(xXIChangeHierarchyReq);
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swaps(&stuff->length, n);
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return (ProcXIChangeHierarchy(client));
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}
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#define SWAPIF(cmd) if (client->swapped) { cmd; }
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int
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ProcXIChangeHierarchy(ClientPtr client)
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{
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DeviceIntPtr ptr, keybd, xtstptr, xtstkeybd;
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xXIAnyHierarchyChangeInfo *any;
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int required_len = sizeof(xXIChangeHierarchyReq);
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char n;
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int rc = Success;
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int flags[MAXDEVICES] = {0};
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REQUEST(xXIChangeHierarchyReq);
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REQUEST_AT_LEAST_SIZE(xXIChangeHierarchyReq);
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if (!stuff->num_changes)
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return rc;
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any = (xXIAnyHierarchyChangeInfo*)&stuff[1];
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while(stuff->num_changes--)
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{
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SWAPIF(swapl(&any->type, n));
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SWAPIF(swaps(&any->length, n));
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required_len += any->length;
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if ((stuff->length * 4) < required_len)
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return BadLength;
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switch(any->type)
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{
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case XIAddMaster:
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{
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xXIAddMasterInfo* c = (xXIAddMasterInfo*)any;
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char* name;
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SWAPIF(swaps(&c->name_len, n));
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name = xcalloc(c->name_len + 1, sizeof(char));
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strncpy(name, (char*)&c[1], c->name_len);
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rc = AllocDevicePair(client, name, &ptr, &keybd, TRUE);
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if (rc != Success)
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{
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xfree(name);
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goto unwind;
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}
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if (!c->send_core)
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ptr->coreEvents = keybd->coreEvents = FALSE;
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/* Allocate virtual slave devices for xtest events */
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rc = AllocXtstDevice(client, name, &xtstptr, &xtstkeybd);
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if (rc != Success)
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{
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xfree(name);
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goto unwind;
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}
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ActivateDevice(ptr, FALSE);
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ActivateDevice(keybd, FALSE);
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flags[ptr->id] |= XIMasterAdded;
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flags[keybd->id] |= XIMasterAdded;
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ActivateDevice(xtstptr, FALSE);
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ActivateDevice(xtstkeybd, FALSE);
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flags[xtstptr->id] |= XISlaveAdded;
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flags[xtstkeybd->id] |= XISlaveAdded;
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if (c->enable)
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{
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EnableDevice(ptr, FALSE);
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EnableDevice(keybd, FALSE);
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flags[ptr->id] |= XIDeviceEnabled;
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flags[keybd->id] |= XIDeviceEnabled;
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EnableDevice(xtstptr, FALSE);
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EnableDevice(xtstkeybd, FALSE);
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flags[xtstptr->id] |= XIDeviceEnabled;
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flags[xtstkeybd->id] |= XIDeviceEnabled;
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}
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/* Attach the XTest virtual devices to the newly
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created master device */
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AttachDevice(NULL, xtstptr, ptr);
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AttachDevice(NULL, xtstkeybd, keybd);
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flags[xtstptr->id] |= XISlaveAttached;
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flags[xtstkeybd->id] |= XISlaveAttached;
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xfree(name);
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}
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break;
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case XIRemoveMaster:
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{
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xXIRemoveMasterInfo* r = (xXIRemoveMasterInfo*)any;
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DeviceIntPtr xtstdevice;
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if (r->return_mode != XIAttachToMaster &&
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r->return_mode != XIFloating)
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return BadValue;
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if (r->deviceid > 0xFF) /* FIXME */
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{
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client->errorValue = r->deviceid;
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return BadImplementation;
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}
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rc = dixLookupDevice(&ptr, r->deviceid, client,
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DixDestroyAccess);
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if (rc != Success)
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goto unwind;
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if (!IsMaster(ptr))
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{
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client->errorValue = r->deviceid;
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rc = BadDevice;
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goto unwind;
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}
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/* XXX: For now, don't allow removal of VCP, VCK */
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if (ptr == inputInfo.pointer ||
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ptr == inputInfo.keyboard)
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{
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rc = BadDevice;
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goto unwind;
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}
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for(xtstdevice = inputInfo.devices; xtstdevice ; xtstdevice = xtstdevice->next )
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if( !IsMaster(xtstdevice) && xtstdevice->u.master == ptr &&
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dixLookupPrivate(&xtstdevice->devPrivates, XTstDevicePrivateKey ))
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break;
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rc = dixLookupDevice(&xtstptr, xtstdevice->id, client,
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DixDestroyAccess);
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if (rc != Success)
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goto unwind;
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/* find keyboards to destroy */
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if (IsPointerDevice(ptr))
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{
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rc = dixLookupDevice(&keybd,
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ptr->spriteInfo->paired->id,
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client,
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DixDestroyAccess);
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if (rc != Success)
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goto unwind;
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}
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else
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{
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keybd = ptr;
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rc = dixLookupDevice(&ptr,
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keybd->spriteInfo->paired->id,
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client,
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DixDestroyAccess);
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if (rc != Success)
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goto unwind;
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}
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/* handle xtst pointer / keyboard slave devices */
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if ( IsPointerDevice(xtstptr))
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{
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/* Search the matching keyboard */
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for(xtstdevice = inputInfo.devices; xtstdevice ; xtstdevice = xtstdevice->next )
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if( !IsMaster(xtstdevice) &&
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xtstdevice->u.master == keybd &&
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IsKeyboardDevice(xtstdevice) &&
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dixLookupPrivate(&xtstdevice->devPrivates, XTstDevicePrivateKey ))
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break;
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rc = dixLookupDevice(&xtstkeybd,
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xtstdevice->id,
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client,
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DixDestroyAccess);
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if (rc != Success)
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goto unwind;
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}
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else
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{
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xtstkeybd = xtstptr;
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/* Search the matching pointer */
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for(xtstdevice = inputInfo.devices; xtstdevice ; xtstdevice = xtstdevice->next )
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if( !IsMaster(xtstdevice) &&
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xtstdevice->u.master == ptr &&
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IsPointerDevice(xtstdevice) &&
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dixLookupPrivate(&xtstdevice->devPrivates, XTstDevicePrivateKey )
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)
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break;
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rc = dixLookupDevice(&xtstptr,
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xtstdevice->id,
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client,
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DixDestroyAccess);
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if (rc != Success)
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goto unwind;
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}
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/* Disabling sends the devices floating, reattach them if
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* desired. */
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if (r->return_mode == XIAttachToMaster)
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{
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DeviceIntPtr attached,
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newptr,
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newkeybd;
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if (r->return_pointer > 0xFF) /* FIXME */
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{
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client->errorValue = r->deviceid;
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return BadImplementation;
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}
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rc = dixLookupDevice(&newptr, r->return_pointer,
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client, DixWriteAccess);
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if (rc != Success)
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goto unwind;
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if (!IsMaster(newptr))
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{
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client->errorValue = r->return_pointer;
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rc = BadDevice;
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goto unwind;
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}
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if (r->return_keyboard > 0xFF) /* FIXME */
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{
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client->errorValue = r->deviceid;
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return BadImplementation;
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}
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rc = dixLookupDevice(&newkeybd, r->return_keyboard,
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client, DixWriteAccess);
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if (rc != Success)
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goto unwind;
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if (!IsMaster(newkeybd))
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{
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client->errorValue = r->return_keyboard;
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rc = BadDevice;
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goto unwind;
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}
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for (attached = inputInfo.devices;
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attached;
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attached = attached->next)
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{
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if (!IsMaster(attached)) {
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if (attached->u.master == ptr)
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{
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AttachDevice(client, attached, newptr);
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flags[attached->id] |= XISlaveAttached;
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}
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if (attached->u.master == keybd)
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{
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AttachDevice(client, attached, newkeybd);
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flags[attached->id] |= XISlaveAttached;
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}
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}
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}
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}
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/* can't disable until we removed pairing */
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keybd->spriteInfo->paired = NULL;
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ptr->spriteInfo->paired = NULL;
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xtstptr->spriteInfo->paired = NULL;
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xtstkeybd->spriteInfo->paired = NULL;
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/* disable the remove the devices, xtst devices must be done first
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else the sprites they rely on will be destroyed */
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DisableDevice(xtstptr, FALSE);
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DisableDevice(xtstkeybd, FALSE);
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DisableDevice(keybd, FALSE);
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DisableDevice(ptr, FALSE);
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flags[xtstptr->id] |= XIDeviceDisabled | XISlaveDetached;
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flags[xtstkeybd->id] |= XIDeviceDisabled | XISlaveDetached;
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flags[keybd->id] |= XIDeviceDisabled;
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flags[ptr->id] |= XIDeviceDisabled;
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RemoveDevice(xtstptr, FALSE);
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RemoveDevice(xtstkeybd, FALSE);
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RemoveDevice(keybd, FALSE);
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RemoveDevice(ptr, FALSE);
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flags[xtstptr->id] |= XISlaveRemoved;
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flags[xtstkeybd->id] |= XISlaveRemoved;
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flags[keybd->id] |= XIMasterRemoved;
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flags[ptr->id] |= XIMasterRemoved;
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}
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break;
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case XIDetachSlave:
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{
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xXIDetachSlaveInfo* c = (xXIDetachSlaveInfo*)any;
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DeviceIntPtr *xtstdevice;
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if (c->deviceid > 0xFF) /* FIXME */
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{
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client->errorValue = c->deviceid;
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return BadImplementation;
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}
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rc = dixLookupDevice(&ptr, c->deviceid, client,
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DixWriteAccess);
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if (rc != Success)
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goto unwind;
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if (IsMaster(ptr))
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{
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client->errorValue = c->deviceid;
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rc = BadDevice;
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goto unwind;
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}
|
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xtstdevice = dixLookupPrivate( &ptr->devPrivates,
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XTstDevicePrivateKey );
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|
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/* Don't allow changes to Xtst Devices, these are fixed */
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if( xtstdevice )
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{
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client->errorValue = c->deviceid;
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rc = BadDevice;
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goto unwind;
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}
|
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|
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AttachDevice(client, ptr, NULL);
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flags[ptr->id] |= XISlaveDetached;
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}
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break;
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case XIAttachSlave:
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{
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xXIAttachSlaveInfo* c = (xXIAttachSlaveInfo*)any;
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DeviceIntPtr newmaster;
|
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DeviceIntPtr *xtstdevice;
|
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|
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if (c->deviceid > 0xFF) /* FIXME */
|
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{
|
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client->errorValue = c->deviceid;
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return BadImplementation;
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}
|
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if (c->new_master > 0xFF) /* FIXME */
|
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{
|
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client->errorValue = c->new_master;
|
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return BadImplementation;
|
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}
|
|
|
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rc = dixLookupDevice(&ptr, c->deviceid, client,
|
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DixWriteAccess);
|
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if (rc != Success)
|
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goto unwind;
|
|
|
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if (IsMaster(ptr))
|
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{
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client->errorValue = c->deviceid;
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rc = BadDevice;
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goto unwind;
|
|
}
|
|
|
|
xtstdevice = dixLookupPrivate( &ptr->devPrivates,
|
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XTstDevicePrivateKey );
|
|
|
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/* Don't allow changes to Xtst Devices, these are fixed */
|
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if( xtstdevice )
|
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{
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|
client->errorValue = c->deviceid;
|
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rc = BadDevice;
|
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goto unwind;
|
|
}
|
|
|
|
rc = dixLookupDevice(&newmaster, c->new_master,
|
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client, DixWriteAccess);
|
|
if (rc != Success)
|
|
goto unwind;
|
|
if (!IsMaster(newmaster))
|
|
{
|
|
client->errorValue = c->new_master;
|
|
rc = BadDevice;
|
|
goto unwind;
|
|
}
|
|
|
|
if (!((IsPointerDevice(newmaster) &&
|
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IsPointerDevice(ptr)) ||
|
|
(IsKeyboardDevice(newmaster) &&
|
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IsKeyboardDevice(ptr))))
|
|
{
|
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rc = BadDevice;
|
|
goto unwind;
|
|
}
|
|
AttachDevice(client, ptr, newmaster);
|
|
flags[ptr->id] |= XISlaveAttached;
|
|
}
|
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break;
|
|
}
|
|
|
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any = (xXIAnyHierarchyChangeInfo*)((char*)any + any->length * 4);
|
|
}
|
|
|
|
unwind:
|
|
|
|
XISendDeviceHierarchyEvent(flags);
|
|
return rc;
|
|
}
|
|
|