diff options
Diffstat (limited to 'xorg-server/Xi/xichangehierarchy.c')
| -rw-r--r-- | xorg-server/Xi/xichangehierarchy.c | 992 |
1 files changed, 496 insertions, 496 deletions
diff --git a/xorg-server/Xi/xichangehierarchy.c b/xorg-server/Xi/xichangehierarchy.c index 96ead6fcd..f83af77c3 100644 --- a/xorg-server/Xi/xichangehierarchy.c +++ b/xorg-server/Xi/xichangehierarchy.c @@ -1,496 +1,496 @@ -/* - * Copyright 2007-2008 Peter Hutterer - * Copyright 2009 Red Hat, Inc. - * - * 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. - * - * Author: Peter Hutterer, University of South Australia, NICTA - */ - -/*********************************************************************** - * - * Request change in the device hierarchy. - * - */ - - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <X11/X.h> /* for inputstr.h */ -#include <X11/Xproto.h> /* Request macro */ -#include "inputstr.h" /* DeviceIntPtr */ -#include "windowstr.h" /* window structure */ -#include "scrnintstr.h" /* screen structure */ -#include <X11/extensions/XI.h> -#include <X11/extensions/XI2proto.h> -#include <X11/extensions/geproto.h> -#include "extnsionst.h" -#include "exevents.h" -#include "exglobals.h" -#include "geext.h" -#include "xace.h" -#include "xiquerydevice.h" /* for GetDeviceUse */ - -#include "xkbsrv.h" - -#include "xichangehierarchy.h" - -/** - * Send the current state of the device hierarchy to all clients. - */ -void XISendDeviceHierarchyEvent(int flags[MAXDEVICES]) -{ - xXIHierarchyEvent *ev; - xXIHierarchyInfo *info; - DeviceIntRec dummyDev; - DeviceIntPtr dev; - int i; - - if (!flags) - return; - - ev = calloc(1, sizeof(xXIHierarchyEvent) + - MAXDEVICES * sizeof(xXIHierarchyInfo)); - if (!ev) - return; - ev->type = GenericEvent; - ev->extension = IReqCode; - ev->evtype = XI_HierarchyChanged; - ev->time = GetTimeInMillis(); - ev->flags = 0; - ev->num_info = inputInfo.numDevices; - - info = (xXIHierarchyInfo*)&ev[1]; - for (dev = inputInfo.devices; dev; dev = dev->next) - { - info->deviceid = dev->id; - info->enabled = dev->enabled; - info->use = GetDeviceUse(dev, &info->attachment); - info->flags = flags[dev->id]; - ev->flags |= info->flags; - info++; - } - for (dev = inputInfo.off_devices; dev; dev = dev->next) - { - info->deviceid = dev->id; - info->enabled = dev->enabled; - info->use = GetDeviceUse(dev, &info->attachment); - info->flags = flags[dev->id]; - ev->flags |= info->flags; - info++; - } - - - for (i = 0; i < MAXDEVICES; i++) - { - if (flags[i] & (XIMasterRemoved | XISlaveRemoved)) - { - info->deviceid = i; - info->enabled = FALSE; - info->flags = flags[i]; - info->use = 0; - ev->flags |= info->flags; - ev->num_info++; - info++; - } - } - - ev->length = bytes_to_int32(ev->num_info * sizeof(xXIHierarchyInfo)); - - memset(&dummyDev, 0, sizeof(dummyDev)); - dummyDev.id = XIAllDevices; - dummyDev.type = SLAVE; - SendEventToAllWindows(&dummyDev, (XI_HierarchyChangedMask >> 8), (xEvent*)ev, 1); - free(ev); -} - - -/*********************************************************************** - * - * This procedure allows a client to change the device hierarchy through - * adding new master devices, removing them, etc. - * - */ - -int SProcXIChangeHierarchy(ClientPtr client) -{ - char n; - - REQUEST(xXIChangeHierarchyReq); - swaps(&stuff->length, n); - return (ProcXIChangeHierarchy(client)); -} - -static int -add_master(ClientPtr client, xXIAddMasterInfo *c, int flags[MAXDEVICES]) -{ - DeviceIntPtr ptr, keybd, XTestptr, XTestkeybd; - char* name; - int rc; - - name = calloc(c->name_len + 1, sizeof(char)); - strncpy(name, (char*)&c[1], c->name_len); - - rc = AllocDevicePair(client, name, &ptr, &keybd, - CorePointerProc, CoreKeyboardProc, TRUE); - if (rc != Success) - goto unwind; - - if (!c->send_core) - ptr->coreEvents = keybd->coreEvents = FALSE; - - /* Allocate virtual slave devices for xtest events */ - rc = AllocXTestDevice(client, name, &XTestptr, &XTestkeybd, ptr, keybd); - if (rc != Success) - { - DeleteInputDeviceRequest(ptr); - DeleteInputDeviceRequest(keybd); - goto unwind; - } - - ActivateDevice(ptr, FALSE); - ActivateDevice(keybd, FALSE); - flags[ptr->id] |= XIMasterAdded; - flags[keybd->id] |= XIMasterAdded; - - ActivateDevice(XTestptr, FALSE); - ActivateDevice(XTestkeybd, FALSE); - flags[XTestptr->id] |= XISlaveAdded; - flags[XTestkeybd->id] |= XISlaveAdded; - - if (c->enable) - { - EnableDevice(ptr, FALSE); - EnableDevice(keybd, FALSE); - flags[ptr->id] |= XIDeviceEnabled; - flags[keybd->id] |= XIDeviceEnabled; - - EnableDevice(XTestptr, FALSE); - EnableDevice(XTestkeybd, FALSE); - flags[XTestptr->id] |= XIDeviceEnabled; - flags[XTestkeybd->id] |= XIDeviceEnabled; - } - - /* Attach the XTest virtual devices to the newly - created master device */ - AttachDevice(NULL, XTestptr, ptr); - AttachDevice(NULL, XTestkeybd, keybd); - flags[XTestptr->id] |= XISlaveAttached; - flags[XTestkeybd->id] |= XISlaveAttached; - -unwind: - free(name); - return rc; -} - -static int -remove_master(ClientPtr client, xXIRemoveMasterInfo *r, - int flags[MAXDEVICES]) -{ - DeviceIntPtr ptr, keybd, XTestptr, XTestkeybd; - int rc = Success; - - if (r->return_mode != XIAttachToMaster && - r->return_mode != XIFloating) - return BadValue; - - rc = dixLookupDevice(&ptr, r->deviceid, client, DixDestroyAccess); - if (rc != Success) - goto unwind; - - if (!IsMaster(ptr)) - { - client->errorValue = r->deviceid; - rc = BadDevice; - goto unwind; - } - - /* XXX: For now, don't allow removal of VCP, VCK */ - if (ptr == inputInfo.pointer || ptr == inputInfo.keyboard) - { - rc = BadDevice; - goto unwind; - } - - - ptr = GetMaster(ptr, MASTER_POINTER); - rc = dixLookupDevice(&ptr, ptr->id, client, DixDestroyAccess); - if (rc != Success) - goto unwind; - keybd = GetMaster(ptr, MASTER_KEYBOARD); - rc = dixLookupDevice(&keybd, keybd->id, client, DixDestroyAccess); - if (rc != Success) - goto unwind; - - XTestptr = GetXTestDevice(ptr); - rc = dixLookupDevice(&XTestptr, XTestptr->id, client, DixDestroyAccess); - if (rc != Success) - goto unwind; - - XTestkeybd = GetXTestDevice(keybd); - rc = dixLookupDevice(&XTestkeybd, XTestkeybd->id, client, - DixDestroyAccess); - if (rc != Success) - goto unwind; - - /* Disabling sends the devices floating, reattach them if - * desired. */ - if (r->return_mode == XIAttachToMaster) - { - DeviceIntPtr attached, - newptr, - newkeybd; - - rc = dixLookupDevice(&newptr, r->return_pointer, client, DixAddAccess); - if (rc != Success) - goto unwind; - - if (!IsMaster(newptr)) - { - client->errorValue = r->return_pointer; - rc = BadDevice; - goto unwind; - } - - rc = dixLookupDevice(&newkeybd, r->return_keyboard, - client, DixAddAccess); - if (rc != Success) - goto unwind; - - if (!IsMaster(newkeybd)) - { - client->errorValue = r->return_keyboard; - rc = BadDevice; - goto unwind; - } - - for (attached = inputInfo.devices; attached; attached = attached->next) - { - if (!IsMaster(attached)) { - if (GetMaster(attached, MASTER_ATTACHED) == ptr) - { - AttachDevice(client, attached, newptr); - flags[attached->id] |= XISlaveAttached; - } - if (GetMaster(attached, MASTER_ATTACHED) == keybd) - { - AttachDevice(client, attached, newkeybd); - flags[attached->id] |= XISlaveAttached; - } - } - } - } - - /* can't disable until we removed pairing */ - keybd->spriteInfo->paired = NULL; - ptr->spriteInfo->paired = NULL; - XTestptr->spriteInfo->paired = NULL; - XTestkeybd->spriteInfo->paired = NULL; - - /* disable the remove the devices, XTest devices must be done first - else the sprites they rely on will be destroyed */ - DisableDevice(XTestptr, FALSE); - DisableDevice(XTestkeybd, FALSE); - DisableDevice(keybd, FALSE); - DisableDevice(ptr, FALSE); - flags[XTestptr->id] |= XIDeviceDisabled | XISlaveDetached; - flags[XTestkeybd->id] |= XIDeviceDisabled | XISlaveDetached; - flags[keybd->id] |= XIDeviceDisabled; - flags[ptr->id] |= XIDeviceDisabled; - - RemoveDevice(XTestptr, FALSE); - RemoveDevice(XTestkeybd, FALSE); - RemoveDevice(keybd, FALSE); - RemoveDevice(ptr, FALSE); - flags[XTestptr->id] |= XISlaveRemoved; - flags[XTestkeybd->id] |= XISlaveRemoved; - flags[keybd->id] |= XIMasterRemoved; - flags[ptr->id] |= XIMasterRemoved; - -unwind: - return rc; -} - -static int -detach_slave(ClientPtr client, xXIDetachSlaveInfo *c, int flags[MAXDEVICES]) -{ - DeviceIntPtr dev; - int rc; - - rc = dixLookupDevice(&dev, c->deviceid, client, DixManageAccess); - if (rc != Success) - goto unwind; - - if (IsMaster(dev)) - { - client->errorValue = c->deviceid; - rc = BadDevice; - goto unwind; - } - - /* Don't allow changes to XTest Devices, these are fixed */ - if (IsXTestDevice(dev, NULL)) - { - client->errorValue = c->deviceid; - rc = BadDevice; - goto unwind; - } - - ReleaseButtonsAndKeys(dev); - AttachDevice(client, dev, NULL); - flags[dev->id] |= XISlaveDetached; - -unwind: - return rc; -} - -static int -attach_slave(ClientPtr client, xXIAttachSlaveInfo *c, - int flags[MAXDEVICES]) -{ - DeviceIntPtr dev; - DeviceIntPtr newmaster; - int rc; - - rc = dixLookupDevice(&dev, c->deviceid, client, DixManageAccess); - if (rc != Success) - goto unwind; - - if (IsMaster(dev)) - { - client->errorValue = c->deviceid; - rc = BadDevice; - goto unwind; - } - - /* Don't allow changes to XTest Devices, these are fixed */ - if (IsXTestDevice(dev, NULL)) - { - client->errorValue = c->deviceid; - rc = BadDevice; - goto unwind; - } - - rc = dixLookupDevice(&newmaster, c->new_master, client, DixAddAccess); - if (rc != Success) - goto unwind; - if (!IsMaster(newmaster)) - { - client->errorValue = c->new_master; - rc = BadDevice; - goto unwind; - } - - if (!((IsPointerDevice(newmaster) && IsPointerDevice(dev)) || - (IsKeyboardDevice(newmaster) && IsKeyboardDevice(dev)))) - { - rc = BadDevice; - goto unwind; - } - - ReleaseButtonsAndKeys(dev); - AttachDevice(client, dev, newmaster); - flags[dev->id] |= XISlaveAttached; - -unwind: - return rc; -} - - - -#define SWAPIF(cmd) if (client->swapped) { cmd; } - -int -ProcXIChangeHierarchy(ClientPtr client) -{ - xXIAnyHierarchyChangeInfo *any; - int required_len = sizeof(xXIChangeHierarchyReq); - char n; - int rc = Success; - int flags[MAXDEVICES] = {0}; - - REQUEST(xXIChangeHierarchyReq); - REQUEST_AT_LEAST_SIZE(xXIChangeHierarchyReq); - - if (!stuff->num_changes) - return rc; - - any = (xXIAnyHierarchyChangeInfo*)&stuff[1]; - while(stuff->num_changes--) - { - SWAPIF(swapl(&any->type, n)); - SWAPIF(swaps(&any->length, n)); - - required_len += any->length; - if ((stuff->length * 4) < required_len) - return BadLength; - - switch(any->type) - { - case XIAddMaster: - { - xXIAddMasterInfo* c = (xXIAddMasterInfo*)any; - SWAPIF(swaps(&c->name_len, n)); - - rc = add_master(client, c, flags); - if (rc != Success) - goto unwind; - } - break; - case XIRemoveMaster: - { - xXIRemoveMasterInfo* r = (xXIRemoveMasterInfo*)any; - - rc = remove_master(client, r, flags); - if (rc != Success) - goto unwind; - } - break; - case XIDetachSlave: - { - xXIDetachSlaveInfo* c = (xXIDetachSlaveInfo*)any; - - rc = detach_slave(client, c, flags); - if (rc != Success) - goto unwind; - } - break; - case XIAttachSlave: - { - xXIAttachSlaveInfo* c = (xXIAttachSlaveInfo*)any; - - rc = attach_slave(client, c, flags); - if (rc != Success) - goto unwind; - } - break; - } - - any = (xXIAnyHierarchyChangeInfo*)((char*)any + any->length * 4); - } - -unwind: - - XISendDeviceHierarchyEvent(flags); - return rc; -} - +/*
+ * Copyright 2007-2008 Peter Hutterer
+ * Copyright 2009 Red Hat, Inc.
+ *
+ * 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.
+ *
+ * Author: Peter Hutterer, University of South Australia, NICTA
+ */
+
+/***********************************************************************
+ *
+ * Request change in the device hierarchy.
+ *
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h> /* for inputstr.h */
+#include <X11/Xproto.h> /* Request macro */
+#include "inputstr.h" /* DeviceIntPtr */
+#include "windowstr.h" /* window structure */
+#include "scrnintstr.h" /* screen structure */
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XI2proto.h>
+#include <X11/extensions/geproto.h>
+#include "extnsionst.h"
+#include "exevents.h"
+#include "exglobals.h"
+#include "geext.h"
+#include "xace.h"
+#include "xiquerydevice.h" /* for GetDeviceUse */
+
+#include "xkbsrv.h"
+
+#include "xichangehierarchy.h"
+
+/**
+ * Send the current state of the device hierarchy to all clients.
+ */
+void XISendDeviceHierarchyEvent(int flags[MAXDEVICES])
+{
+ xXIHierarchyEvent *ev;
+ xXIHierarchyInfo *info;
+ DeviceIntRec dummyDev;
+ DeviceIntPtr dev;
+ int i;
+
+ if (!flags)
+ return;
+
+ ev = calloc(1, sizeof(xXIHierarchyEvent) +
+ MAXDEVICES * sizeof(xXIHierarchyInfo));
+ if (!ev)
+ return;
+ ev->type = GenericEvent;
+ ev->extension = IReqCode;
+ ev->evtype = XI_HierarchyChanged;
+ ev->time = GetTimeInMillis();
+ ev->flags = 0;
+ ev->num_info = inputInfo.numDevices;
+
+ info = (xXIHierarchyInfo*)&ev[1];
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ info->deviceid = dev->id;
+ info->enabled = dev->enabled;
+ info->use = GetDeviceUse(dev, &info->attachment);
+ info->flags = flags[dev->id];
+ ev->flags |= info->flags;
+ info++;
+ }
+ for (dev = inputInfo.off_devices; dev; dev = dev->next)
+ {
+ info->deviceid = dev->id;
+ info->enabled = dev->enabled;
+ info->use = GetDeviceUse(dev, &info->attachment);
+ info->flags = flags[dev->id];
+ ev->flags |= info->flags;
+ info++;
+ }
+
+
+ for (i = 0; i < MAXDEVICES; i++)
+ {
+ if (flags[i] & (XIMasterRemoved | XISlaveRemoved))
+ {
+ info->deviceid = i;
+ info->enabled = FALSE;
+ info->flags = flags[i];
+ info->use = 0;
+ ev->flags |= info->flags;
+ ev->num_info++;
+ info++;
+ }
+ }
+
+ ev->length = bytes_to_int32(ev->num_info * sizeof(xXIHierarchyInfo));
+
+ memset(&dummyDev, 0, sizeof(dummyDev));
+ dummyDev.id = XIAllDevices;
+ dummyDev.type = SLAVE;
+ SendEventToAllWindows(&dummyDev, (XI_HierarchyChangedMask >> 8), (xEvent*)ev, 1);
+ free(ev);
+}
+
+
+/***********************************************************************
+ *
+ * This procedure allows a client to change the device hierarchy through
+ * adding new master devices, removing them, etc.
+ *
+ */
+
+int SProcXIChangeHierarchy(ClientPtr client)
+{
+ char n;
+
+ REQUEST(xXIChangeHierarchyReq);
+ swaps(&stuff->length, n);
+ return (ProcXIChangeHierarchy(client));
+}
+
+static int
+add_master(ClientPtr client, xXIAddMasterInfo *c, int flags[MAXDEVICES])
+{
+ DeviceIntPtr ptr, keybd, XTestptr, XTestkeybd;
+ char* name;
+ int rc;
+
+ name = calloc(c->name_len + 1, sizeof(char));
+ strncpy(name, (char*)&c[1], c->name_len);
+
+ rc = AllocDevicePair(client, name, &ptr, &keybd,
+ CorePointerProc, CoreKeyboardProc, TRUE);
+ if (rc != Success)
+ goto unwind;
+
+ if (!c->send_core)
+ ptr->coreEvents = keybd->coreEvents = FALSE;
+
+ /* Allocate virtual slave devices for xtest events */
+ rc = AllocXTestDevice(client, name, &XTestptr, &XTestkeybd, ptr, keybd);
+ if (rc != Success)
+ {
+ DeleteInputDeviceRequest(ptr);
+ DeleteInputDeviceRequest(keybd);
+ goto unwind;
+ }
+
+ ActivateDevice(ptr, FALSE);
+ ActivateDevice(keybd, FALSE);
+ flags[ptr->id] |= XIMasterAdded;
+ flags[keybd->id] |= XIMasterAdded;
+
+ ActivateDevice(XTestptr, FALSE);
+ ActivateDevice(XTestkeybd, FALSE);
+ flags[XTestptr->id] |= XISlaveAdded;
+ flags[XTestkeybd->id] |= XISlaveAdded;
+
+ if (c->enable)
+ {
+ EnableDevice(ptr, FALSE);
+ EnableDevice(keybd, FALSE);
+ flags[ptr->id] |= XIDeviceEnabled;
+ flags[keybd->id] |= XIDeviceEnabled;
+
+ EnableDevice(XTestptr, FALSE);
+ EnableDevice(XTestkeybd, FALSE);
+ flags[XTestptr->id] |= XIDeviceEnabled;
+ flags[XTestkeybd->id] |= XIDeviceEnabled;
+ }
+
+ /* Attach the XTest virtual devices to the newly
+ created master device */
+ AttachDevice(NULL, XTestptr, ptr);
+ AttachDevice(NULL, XTestkeybd, keybd);
+ flags[XTestptr->id] |= XISlaveAttached;
+ flags[XTestkeybd->id] |= XISlaveAttached;
+
+unwind:
+ free(name);
+ return rc;
+}
+
+static int
+remove_master(ClientPtr client, xXIRemoveMasterInfo *r,
+ int flags[MAXDEVICES])
+{
+ DeviceIntPtr ptr, keybd, XTestptr, XTestkeybd;
+ int rc = Success;
+
+ if (r->return_mode != XIAttachToMaster &&
+ r->return_mode != XIFloating)
+ return BadValue;
+
+ rc = dixLookupDevice(&ptr, r->deviceid, client, DixDestroyAccess);
+ if (rc != Success)
+ goto unwind;
+
+ if (!IsMaster(ptr))
+ {
+ client->errorValue = r->deviceid;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ /* XXX: For now, don't allow removal of VCP, VCK */
+ if (ptr == inputInfo.pointer || ptr == inputInfo.keyboard)
+ {
+ rc = BadDevice;
+ goto unwind;
+ }
+
+
+ ptr = GetMaster(ptr, MASTER_POINTER);
+ rc = dixLookupDevice(&ptr, ptr->id, client, DixDestroyAccess);
+ if (rc != Success)
+ goto unwind;
+ keybd = GetMaster(ptr, MASTER_KEYBOARD);
+ rc = dixLookupDevice(&keybd, keybd->id, client, DixDestroyAccess);
+ if (rc != Success)
+ goto unwind;
+
+ XTestptr = GetXTestDevice(ptr);
+ rc = dixLookupDevice(&XTestptr, XTestptr->id, client, DixDestroyAccess);
+ if (rc != Success)
+ goto unwind;
+
+ XTestkeybd = GetXTestDevice(keybd);
+ rc = dixLookupDevice(&XTestkeybd, XTestkeybd->id, client,
+ DixDestroyAccess);
+ if (rc != Success)
+ goto unwind;
+
+ /* Disabling sends the devices floating, reattach them if
+ * desired. */
+ if (r->return_mode == XIAttachToMaster)
+ {
+ DeviceIntPtr attached,
+ newptr,
+ newkeybd;
+
+ rc = dixLookupDevice(&newptr, r->return_pointer, client, DixAddAccess);
+ if (rc != Success)
+ goto unwind;
+
+ if (!IsMaster(newptr))
+ {
+ client->errorValue = r->return_pointer;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ rc = dixLookupDevice(&newkeybd, r->return_keyboard,
+ client, DixAddAccess);
+ if (rc != Success)
+ goto unwind;
+
+ if (!IsMaster(newkeybd))
+ {
+ client->errorValue = r->return_keyboard;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ for (attached = inputInfo.devices; attached; attached = attached->next)
+ {
+ if (!IsMaster(attached)) {
+ if (GetMaster(attached, MASTER_ATTACHED) == ptr)
+ {
+ AttachDevice(client, attached, newptr);
+ flags[attached->id] |= XISlaveAttached;
+ }
+ if (GetMaster(attached, MASTER_ATTACHED) == keybd)
+ {
+ AttachDevice(client, attached, newkeybd);
+ flags[attached->id] |= XISlaveAttached;
+ }
+ }
+ }
+ }
+
+ /* can't disable until we removed pairing */
+ keybd->spriteInfo->paired = NULL;
+ ptr->spriteInfo->paired = NULL;
+ XTestptr->spriteInfo->paired = NULL;
+ XTestkeybd->spriteInfo->paired = NULL;
+
+ /* disable the remove the devices, XTest devices must be done first
+ else the sprites they rely on will be destroyed */
+ DisableDevice(XTestptr, FALSE);
+ DisableDevice(XTestkeybd, FALSE);
+ DisableDevice(keybd, FALSE);
+ DisableDevice(ptr, FALSE);
+ flags[XTestptr->id] |= XIDeviceDisabled | XISlaveDetached;
+ flags[XTestkeybd->id] |= XIDeviceDisabled | XISlaveDetached;
+ flags[keybd->id] |= XIDeviceDisabled;
+ flags[ptr->id] |= XIDeviceDisabled;
+
+ RemoveDevice(XTestptr, FALSE);
+ RemoveDevice(XTestkeybd, FALSE);
+ RemoveDevice(keybd, FALSE);
+ RemoveDevice(ptr, FALSE);
+ flags[XTestptr->id] |= XISlaveRemoved;
+ flags[XTestkeybd->id] |= XISlaveRemoved;
+ flags[keybd->id] |= XIMasterRemoved;
+ flags[ptr->id] |= XIMasterRemoved;
+
+unwind:
+ return rc;
+}
+
+static int
+detach_slave(ClientPtr client, xXIDetachSlaveInfo *c, int flags[MAXDEVICES])
+{
+ DeviceIntPtr dev;
+ int rc;
+
+ rc = dixLookupDevice(&dev, c->deviceid, client, DixManageAccess);
+ if (rc != Success)
+ goto unwind;
+
+ if (IsMaster(dev))
+ {
+ client->errorValue = c->deviceid;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ /* Don't allow changes to XTest Devices, these are fixed */
+ if (IsXTestDevice(dev, NULL))
+ {
+ client->errorValue = c->deviceid;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ ReleaseButtonsAndKeys(dev);
+ AttachDevice(client, dev, NULL);
+ flags[dev->id] |= XISlaveDetached;
+
+unwind:
+ return rc;
+}
+
+static int
+attach_slave(ClientPtr client, xXIAttachSlaveInfo *c,
+ int flags[MAXDEVICES])
+{
+ DeviceIntPtr dev;
+ DeviceIntPtr newmaster;
+ int rc;
+
+ rc = dixLookupDevice(&dev, c->deviceid, client, DixManageAccess);
+ if (rc != Success)
+ goto unwind;
+
+ if (IsMaster(dev))
+ {
+ client->errorValue = c->deviceid;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ /* Don't allow changes to XTest Devices, these are fixed */
+ if (IsXTestDevice(dev, NULL))
+ {
+ client->errorValue = c->deviceid;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ rc = dixLookupDevice(&newmaster, c->new_master, client, DixAddAccess);
+ if (rc != Success)
+ goto unwind;
+ if (!IsMaster(newmaster))
+ {
+ client->errorValue = c->new_master;
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ if (!((IsPointerDevice(newmaster) && IsPointerDevice(dev)) ||
+ (IsKeyboardDevice(newmaster) && IsKeyboardDevice(dev))))
+ {
+ rc = BadDevice;
+ goto unwind;
+ }
+
+ ReleaseButtonsAndKeys(dev);
+ AttachDevice(client, dev, newmaster);
+ flags[dev->id] |= XISlaveAttached;
+
+unwind:
+ return rc;
+}
+
+
+
+#define SWAPIF(cmd) if (client->swapped) { cmd; }
+
+int
+ProcXIChangeHierarchy(ClientPtr client)
+{
+ xXIAnyHierarchyChangeInfo *any;
+ int required_len = sizeof(xXIChangeHierarchyReq);
+ char n;
+ int rc = Success;
+ int flags[MAXDEVICES] = {0};
+
+ REQUEST(xXIChangeHierarchyReq);
+ REQUEST_AT_LEAST_SIZE(xXIChangeHierarchyReq);
+
+ if (!stuff->num_changes)
+ return rc;
+
+ any = (xXIAnyHierarchyChangeInfo*)&stuff[1];
+ while(stuff->num_changes--)
+ {
+ SWAPIF(swapl(&any->type, n));
+ SWAPIF(swaps(&any->length, n));
+
+ required_len += any->length;
+ if ((stuff->length * 4) < required_len)
+ return BadLength;
+
+ switch(any->type)
+ {
+ case XIAddMaster:
+ {
+ xXIAddMasterInfo* c = (xXIAddMasterInfo*)any;
+ SWAPIF(swaps(&c->name_len, n));
+
+ rc = add_master(client, c, flags);
+ if (rc != Success)
+ goto unwind;
+ }
+ break;
+ case XIRemoveMaster:
+ {
+ xXIRemoveMasterInfo* r = (xXIRemoveMasterInfo*)any;
+
+ rc = remove_master(client, r, flags);
+ if (rc != Success)
+ goto unwind;
+ }
+ break;
+ case XIDetachSlave:
+ {
+ xXIDetachSlaveInfo* c = (xXIDetachSlaveInfo*)any;
+
+ rc = detach_slave(client, c, flags);
+ if (rc != Success)
+ goto unwind;
+ }
+ break;
+ case XIAttachSlave:
+ {
+ xXIAttachSlaveInfo* c = (xXIAttachSlaveInfo*)any;
+
+ rc = attach_slave(client, c, flags);
+ if (rc != Success)
+ goto unwind;
+ }
+ break;
+ }
+
+ any = (xXIAnyHierarchyChangeInfo*)((char*)any + any->length * 4);
+ }
+
+unwind:
+
+ XISendDeviceHierarchyEvent(flags);
+ return rc;
+}
+
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