Xi: add XACE hooks for device creation (ChangeDeviceHierarchy)

AddInputDevice checks for permissions already, so all we do is modify a few
callers to let AID sort it out.

Xi/chdevhier.c

@@ -52,6 +52,7 @@ from the author.
 #include "exevents.h"
 #include "exglobals.h"
 #include "geext.h"
+#include "xace.h"
 
 #include "chdevhier.h"
 
@@ -104,20 +105,17 @@ ProcXChangeDeviceHierarchy(ClientPtr client)
                 {
                     xCreateMasterInfo* c = (xCreateMasterInfo*)any;
                     char* name;
-                    int ret;
-
-                    /* XXX: check for creation permission */
 
                     SWAPIF(swaps(&c->namelen, n));
                     name = xcalloc(c->namelen + 1, sizeof(char));
                     strncpy(name, (char*)&c[1], c->namelen);
 
 
-                    ret = AllocMasterDevice(name, &ptr, &keybd);
-                    if (ret != Success)
+                    rc = AllocMasterDevice(client, name, &ptr, &keybd);
+                    if (rc != Success)
                     {
                         xfree(name);
-                        return ret;
+                        return rc;
                     }
 
                     if (!c->sendCore)

dix/devices.c

@@ -100,7 +100,7 @@ DevPrivateKey CoreDevicePrivateKey = &CoreDevicePrivateKey;
  * @return The newly created device.
  */
 DeviceIntPtr
-AddInputDevice(DeviceProc deviceProc, Bool autoStart)
+AddInputDevice(ClientPtr client, DeviceProc deviceProc, Bool autoStart)
 {
     DeviceIntPtr dev, *prev; /* not a typo */
     DeviceIntPtr devtmp;
@@ -562,9 +562,9 @@ CorePointerProc(DeviceIntPtr pDev, int what)
 void
 InitCoreDevices(void)
 {
-    if (AllocMasterDevice("Virtual core",
+    if (AllocMasterDevice(serverClient, "Virtual core",
                           &inputInfo.pointer,
-                          &inputInfo.keyboard) == BadAlloc)
+                          &inputInfo.keyboard) != Success)
         FatalError("Failed to allocate core devices");
 }
 
@@ -2597,13 +2597,13 @@ NextFreePointerDevice()
  * EnableDevice() manually.
  */
 int
-AllocMasterDevice(char* name, DeviceIntPtr* ptr, DeviceIntPtr* keybd)
+AllocMasterDevice(ClientPtr client, char* name, DeviceIntPtr* ptr, DeviceIntPtr* keybd)
 {
     DeviceIntPtr pointer;
     DeviceIntPtr keyboard;
     *ptr = *keybd = NULL;
 
-    pointer = AddInputDevice(CorePointerProc, TRUE);
+    pointer = AddInputDevice(client, CorePointerProc, TRUE);
     if (!pointer)
         return BadAlloc;
 
@@ -2628,7 +2628,7 @@ AllocMasterDevice(char* name, DeviceIntPtr* ptr, DeviceIntPtr* keybd)
     pointer->u.lastSlave = NULL;
     pointer->isMaster = TRUE;
 
-    keyboard = AddInputDevice(CoreKeyboardProc, TRUE);
+    keyboard = AddInputDevice(client, CoreKeyboardProc, TRUE);
     if (!keyboard)
         return BadAlloc;
 

hw/vfb/InitInput.c

@@ -318,8 +318,8 @@ void
 InitInput(int argc, char *argv[])
 {
     DeviceIntPtr p, k;
-    p = AddInputDevice(vfbMouseProc, TRUE);
-    k = AddInputDevice(vfbKeybdProc, TRUE);
+    p = AddInputDevice(serverClient, vfbMouseProc, TRUE);
+    k = AddInputDevice(serverClient, vfbKeybdProc, TRUE);
     RegisterPointerDevice(p);
     RegisterKeyboardDevice(k);
     (void)mieqInit();

hw/xfree86/common/xf86Xinput.c

@@ -158,7 +158,7 @@ xf86ActivateDevice(LocalDevicePtr local)
     DeviceIntPtr	dev;
 
     if (local->flags & XI86_CONFIGURED) {
-        dev = AddInputDevice(local->device_control, TRUE);
+        dev = AddInputDevice(serverClient, local->device_control, TRUE);
 
         if (dev == NULL)
             FatalError("Too many input devices");

hw/xnest/Init.c

@@ -89,8 +89,8 @@ InitOutput(ScreenInfo *screenInfo, int argc, char *argv[])
 void
 InitInput(int argc, char *argv[])
 {
-  xnestPointerDevice = AddInputDevice(xnestPointerProc, TRUE);
-  xnestKeyboardDevice = AddInputDevice(xnestKeyboardProc, TRUE);
+  xnestPointerDevice = AddInputDevice(serverClient, xnestPointerProc, TRUE);
+  xnestKeyboardDevice = AddInputDevice(serverClient, xnestKeyboardProc, TRUE);
 
   if (!xnestEvents)
       xnestEvents = (xEvent *) xcalloc(sizeof(xEvent), GetMaximumEventsNum());

include/input.h

@@ -180,6 +180,7 @@ typedef struct _InputOption {
 extern void InitCoreDevices(void);
 
 extern DeviceIntPtr AddInputDevice(
+    ClientPtr /*client*/,
     DeviceProc /*deviceProc*/,
     Bool /*autoStart*/);
 
@@ -471,7 +472,8 @@ extern Bool RegisterPairingClient(ClientPtr client);
 extern DeviceIntPtr GuessFreePointerDevice(void);
 extern DeviceIntPtr NextFreePointerDevice(void);
 
-extern int AllocMasterDevice(char* name,
+extern int AllocMasterDevice(ClientPtr client,
+                             char* name,
                              DeviceIntPtr* ptr,
                              DeviceIntPtr* keybd);
 extern void DeepCopyDeviceClasses(DeviceIntPtr from,

xkb/xkbLEDs.c

@@ -63,6 +63,9 @@ XkbSrvLedInfoPtr	sli;
 
     sli= XkbFindSrvLedInfo(dev,XkbDfltXIClass,XkbDfltXIId,0);
 
+    if (!sli)
+        return update;
+
     if (state_changes&(XkbModifierStateMask|XkbGroupStateMask))
 	update|= sli->usesEffective;
     if (state_changes&(XkbModifierBaseMask|XkbGroupBaseMask))