Replace XC-SECURITY code with XACE security hooks

(cherry picked from 8526cd6395 commit)

include/dix.h

@@ -89,12 +89,9 @@ SOFTWARE.
     ((client->lastDrawableID == did) ? \
      client->lastDrawable : (DrawablePtr)LookupDrawable(did, client))
 
-#ifdef XCSECURITY
+#ifdef XACE
 
 #define SECURITY_VERIFY_DRAWABLE(pDraw, did, client, mode)\
-    if (client->lastDrawableID == did && !client->trustLevel)\
-	pDraw = client->lastDrawable;\
-    else \
     {\
 	pDraw = (DrawablePtr) SecurityLookupIDByClass(client, did, \
 						      RC_DRAWABLE, mode);\
@@ -108,9 +105,6 @@ SOFTWARE.
     }
 
 #define SECURITY_VERIFY_GEOMETRABLE(pDraw, did, client, mode)\
-    if (client->lastDrawableID == did && !client->trustLevel)\
-	pDraw = client->lastDrawable;\
-    else \
     {\
 	pDraw = (DrawablePtr) SecurityLookupIDByClass(client, did, \
 						      RC_DRAWABLE, mode);\
@@ -122,9 +116,6 @@ SOFTWARE.
     }
 
 #define SECURITY_VERIFY_GC(pGC, rid, client, mode)\
-    if (client->lastGCID == rid && !client->trustLevel)\
-        pGC = client->lastGC;\
-    else\
 	pGC = (GC *) SecurityLookupIDByType(client, rid, RT_GC, mode);\
     if (!pGC)\
     {\
@@ -141,7 +132,7 @@ SOFTWARE.
 #define VERIFY_GC(pGC, rid, client)\
 	SECURITY_VERIFY_GC(pGC, rid, client, SecurityUnknownAccess)
 
-#else /* not XCSECURITY */
+#else /* not XACE */
 
 #define VERIFY_DRAWABLE(pDraw, did, client)\
     if (client->lastDrawableID == did)\
@@ -191,7 +182,7 @@ SOFTWARE.
 #define SECURITY_VERIFY_GC(pGC, rid, client, mode)\
 	VERIFY_GC(pGC, rid, client)
 
-#endif /* XCSECURITY */
+#endif /* XACE */
 
 /*
  * We think that most hardware implementations of DBE will want
@@ -386,7 +377,7 @@ extern int CompareISOLatin1Lowered(
     unsigned char * /*b*/,
     int blen);
 
-#ifdef XCSECURITY
+#ifdef XACE
 
 extern WindowPtr SecurityLookupWindow(
     XID /*rid*/,
@@ -422,7 +413,7 @@ extern pointer LookupDrawable(
 #define SecurityLookupDrawable(rid, client, access_mode) \
 	LookupDrawable(rid, client)
 
-#endif /* XCSECURITY */
+#endif /* XACE */
 
 extern ClientPtr LookupClient(
     XID /*rid*/,

include/dixstruct.h

@@ -130,15 +130,8 @@ typedef struct _Client {
     int         requestLogIndex;
 #endif
     unsigned long replyBytesRemaining;
-#ifdef XCSECURITY
-    XID		authId;
-    unsigned int trustLevel;
-    pointer (* CheckAccess)(
-	    ClientPtr /*pClient*/,
-	    XID /*id*/,
-	    RESTYPE /*classes*/,
-	    Mask /*access_mode*/,
-	    pointer /*resourceval*/);
+#ifdef XACE
+    pointer securityState[4];   /* 4 slots for use */
 #endif
 #ifdef XAPPGROUP
     struct _AppGroupRec*	appgroup;

include/extnsionst.h

@@ -71,7 +71,7 @@ typedef struct _ExtensionEntry {
     unsigned short (* MinorOpcode)(	/* called for errors */
 	ClientPtr /* client */);
 #ifdef XCSECURITY
-    Bool secure;		/* extension visible to untrusted clients? */
+    pointer securityState[4];		/* 4 slots for use */
 #endif
 } ExtensionEntry;
 
@@ -129,6 +129,7 @@ extern Bool AddExtensionAlias(
     ExtensionEntry * /*extension*/);
 
 extern ExtensionEntry *CheckExtension(const char *extname);
+extern ExtensionEntry *GetExtensionEntry(int major);
 
 extern ExtensionLookupProc LookupProc(
     char* /*name*/,

include/resource.h

@@ -227,7 +227,7 @@ extern pointer LookupClientResourceComplex(
 #define SecurityWriteAccess	(1<<1)	/* changing the object */
 #define SecurityDestroyAccess	(1<<2)	/* destroying the object */
 
-#ifdef XCSECURITY
+#ifdef XACE
 
 extern pointer SecurityLookupIDByType(
     ClientPtr /*client*/,
@@ -241,7 +241,7 @@ extern pointer SecurityLookupIDByClass(
     RESTYPE /*classes*/,
     Mask /*access_mode*/);
 
-#else /* not XCSECURITY */
+#else /* not XACE */
 
 #define SecurityLookupIDByType(client, id, rtype, access_mode) \
         LookupIDByType(id, rtype)
@@ -249,7 +249,7 @@ extern pointer SecurityLookupIDByClass(
 #define SecurityLookupIDByClass(client, id, classes, access_mode) \
         LookupIDByClass(id, classes)
 
-#endif /* XCSECURITY */
+#endif /* XACE */
 
 extern void GetXIDRange(
     int /*client*/,