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authorUlrich Sibiller <uli42@gmx.de>2017-02-19 00:06:54 +0100
committerMihai Moldovan <ionic@ionic.de>2017-03-01 15:19:16 +0100
commit1d24554ff5754e294c03da0a3c5a53af8736ee2b (patch)
tree9fdfcc1cdaacae5550e7fa7e2ac870ce61aa26be /nx-X11
parent52c3c80d75081b91ff27cb8ab37ca943980d424d (diff)
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dix: fix incomplete commit
The following commit turned out to be incomplete. This commit makes it complete by removing client->lastDrawable/lastGC everywhere thus fixing ArcticaProject/nx-libs#306 and #322 commit e6f2f6427122dc4bc802acebf26f8cec16cd2f62 Author: Mike Gabriel <mike.gabriel@das-netzwerkteam.de> Date: Mon Jun 20 16:45:38 2016 +0200 dix: remove caching of drawables and graphics contexts. The security checks simply bypass the cached values so they are unused. Backported from X.org: commit 9a183d7ba50e31afa133cc03aee7991517a283ea Author: Eamon Walsh <ewalsh@tycho.nsa.gov> Date: Tue Aug 14 11:39:26 2007 -0400 dix: remove caching of drawables and graphics contexts. The security checks simply bypass the cached values so they are unused. Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Diffstat (limited to 'nx-X11')
-rw-r--r--nx-X11/programs/Xserver/dbe/dbe.c2
-rw-r--r--nx-X11/programs/Xserver/dix/dispatch.c42
-rw-r--r--nx-X11/programs/Xserver/dix/dixutils.c45
-rw-r--r--nx-X11/programs/Xserver/include/dix.h38
-rw-r--r--nx-X11/programs/Xserver/include/dixstruct.h4
-rw-r--r--nx-X11/programs/Xserver/include/resource.h6
6 files changed, 12 insertions, 125 deletions
diff --git a/nx-X11/programs/Xserver/dbe/dbe.c b/nx-X11/programs/Xserver/dbe/dbe.c
index 95740871a..85a22219f 100644
--- a/nx-X11/programs/Xserver/dbe/dbe.c
+++ b/nx-X11/programs/Xserver/dbe/dbe.c
@@ -1842,7 +1842,7 @@ DbeExtensionInit()
/* Create the resource types. */
dbeDrawableResType =
- CreateNewResourceType(DbeDrawableDelete) | RC_CACHED | RC_DRAWABLE;
+ CreateNewResourceType(DbeDrawableDelete) | RC_DRAWABLE;
dbeWindowPrivResType =
CreateNewResourceType(DbeWindowPrivDelete);
diff --git a/nx-X11/programs/Xserver/dix/dispatch.c b/nx-X11/programs/Xserver/dix/dispatch.c
index 02d5170fb..044ba1c4b 100644
--- a/nx-X11/programs/Xserver/dix/dispatch.c
+++ b/nx-X11/programs/Xserver/dix/dispatch.c
@@ -216,33 +216,6 @@ InitSelections()
}
#endif /* NXAGENT_SERVER */
-void
-FlushClientCaches(XID id)
-{
- int i;
- register ClientPtr client;
-
- client = clients[CLIENT_ID(id)];
- if (client == NullClient)
- return ;
- for (i=0; i<currentMaxClients; i++)
- {
- client = clients[i];
- if (client != NullClient)
- {
- if (client->lastDrawableID == id)
- {
- client->lastDrawableID = screenInfo.screens[0]->root->drawable.id;
- client->lastDrawable = (DrawablePtr)screenInfo.screens[0]->root;
- }
- else if (client->lastGCID == id)
- {
- client->lastGCID = INVALID;
- client->lastGC = (GCPtr)NULL;
- }
- }
- }
-}
#undef SMART_DEBUG
#define SMART_SCHEDULE_DEFAULT_INTERVAL 20 /* ms */
@@ -3629,20 +3602,7 @@ void InitClient(ClientPtr client, int i, void * ospriv)
client->sequence = 0;
client->clientAsMask = ((Mask)i) << CLIENTOFFSET;
client->clientGone = FALSE;
- if (i)
- {
- client->closeDownMode = DestroyAll;
- client->lastDrawable = (DrawablePtr)screenInfo.screens[0]->root;
- client->lastDrawableID = screenInfo.screens[0]->root->drawable.id;
- }
- else
- {
- client->closeDownMode = RetainPermanent;
- client->lastDrawable = (DrawablePtr)NULL;
- client->lastDrawableID = INVALID;
- }
- client->lastGC = (GCPtr) NULL;
- client->lastGCID = INVALID;
+ client->closeDownMode = i ? DestroyAll : RetainPermanent;
client->numSaved = 0;
client->saveSet = (SaveSetElt *)NULL;
client->noClientException = Success;
diff --git a/nx-X11/programs/Xserver/dix/dixutils.c b/nx-X11/programs/Xserver/dix/dixutils.c
index bf925f748..3ccc90d71 100644
--- a/nx-X11/programs/Xserver/dix/dixutils.c
+++ b/nx-X11/programs/Xserver/dix/dixutils.c
@@ -210,27 +210,10 @@ CompareISOLatin1Lowered(unsigned char *s1, int s1len,
WindowPtr
SecurityLookupWindow(XID rid, ClientPtr client, Mask access_mode)
{
- WindowPtr pWin;
-
client->errorValue = rid;
if(rid == INVALID)
return NULL;
- if (client->trustLevel != XSecurityClientTrusted)
- return (WindowPtr)SecurityLookupIDByType(client, rid, RT_WINDOW, access_mode);
- if (client->lastDrawableID == rid)
- {
- if (client->lastDrawable->type == DRAWABLE_WINDOW)
- return ((WindowPtr) client->lastDrawable);
- return (WindowPtr) NULL;
- }
- pWin = (WindowPtr)SecurityLookupIDByType(client, rid, RT_WINDOW, access_mode);
- if (pWin && pWin->drawable.type == DRAWABLE_WINDOW) {
- client->lastDrawable = (DrawablePtr) pWin;
- client->lastDrawableID = rid;
- client->lastGCID = INVALID;
- client->lastGC = (GCPtr)NULL;
- }
- return pWin;
+ return (WindowPtr)SecurityLookupIDByType(client, rid, RT_WINDOW, access_mode);
}
@@ -241,15 +224,10 @@ SecurityLookupDrawable(XID rid, ClientPtr client, Mask access_mode)
if(rid == INVALID)
return (void *) NULL;
- if (client->trustLevel != XSecurityClientTrusted)
- return (DrawablePtr)SecurityLookupIDByClass(client, rid, RC_DRAWABLE,
- access_mode);
- if (client->lastDrawableID == rid)
- return ((void *) client->lastDrawable);
pDraw = (DrawablePtr)SecurityLookupIDByClass(client, rid, RC_DRAWABLE,
access_mode);
- if (pDraw && (pDraw->type != UNDRAWABLE_WINDOW))
- return (void *)pDraw;
+ if ((client->trustLevel != XSecurityClientTrusted) || (pDraw && (pDraw->type != UNDRAWABLE_WINDOW)))
+ return (void *)pDraw;
return (void *)NULL;
}
@@ -279,20 +257,7 @@ LookupWindow(XID rid, ClientPtr client)
client->errorValue = rid;
if(rid == INVALID)
return NULL;
- if (client->lastDrawableID == rid)
- {
- if (client->lastDrawable->type == DRAWABLE_WINDOW)
- return ((WindowPtr) client->lastDrawable);
- return (WindowPtr) NULL;
- }
- pWin = (WindowPtr)LookupIDByType(rid, RT_WINDOW);
- if (pWin && pWin->drawable.type == DRAWABLE_WINDOW) {
- client->lastDrawable = (DrawablePtr) pWin;
- client->lastDrawableID = rid;
- client->lastGCID = INVALID;
- client->lastGC = (GCPtr)NULL;
- }
- return pWin;
+ return (WindowPtr)LookupIDByType(rid, RT_WINDOW);
}
@@ -303,8 +268,6 @@ LookupDrawable(XID rid, ClientPtr client)
if(rid == INVALID)
return (void *) NULL;
- if (client->lastDrawableID == rid)
- return ((void *) client->lastDrawable);
pDraw = (DrawablePtr)LookupIDByClass(rid, RC_DRAWABLE);
if (pDraw && (pDraw->type != UNDRAWABLE_WINDOW))
return (void *)pDraw;
diff --git a/nx-X11/programs/Xserver/include/dix.h b/nx-X11/programs/Xserver/include/dix.h
index 0b08b46a9..58f6c6eb0 100644
--- a/nx-X11/programs/Xserver/include/dix.h
+++ b/nx-X11/programs/Xserver/include/dix.h
@@ -91,15 +91,11 @@ SOFTWARE.
/* XXX if you are using this macro, you are probably not generating Match
* errors where appropriate */
#define LOOKUP_DRAWABLE(did, client)\
- ((client->lastDrawableID == did) ? \
- client->lastDrawable : (DrawablePtr)LookupDrawable(did, client))
+ ((DrawablePtr)LookupDrawable(did, client))
#ifdef XCSECURITY
#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);\
@@ -113,9 +109,6 @@ 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);\
@@ -127,10 +120,7 @@ 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);\
+ pGC = (GC *) SecurityLookupIDByType(client, rid, RT_GC, mode);\
if (!pGC)\
{\
client->errorValue = rid;\
@@ -149,9 +139,6 @@ SOFTWARE.
#else /* not XCSECURITY */
#define VERIFY_DRAWABLE(pDraw, did, client)\
- if (client->lastDrawableID == did)\
- pDraw = client->lastDrawable;\
- else \
{\
pDraw = (DrawablePtr) LookupIDByClass(did, RC_DRAWABLE);\
if (!pDraw) \
@@ -164,9 +151,6 @@ SOFTWARE.
}
#define VERIFY_GEOMETRABLE(pDraw, did, client)\
- if (client->lastDrawableID == did)\
- pDraw = client->lastDrawable;\
- else \
{\
pDraw = (DrawablePtr) LookupIDByClass(did, RC_DRAWABLE);\
if (!pDraw) \
@@ -177,10 +161,7 @@ SOFTWARE.
}
#define VERIFY_GC(pGC, rid, client)\
- if (client->lastGCID == rid)\
- pGC = client->lastGC;\
- else\
- pGC = (GC *)LookupIDByType(rid, RT_GC);\
+ pGC = (GC *)LookupIDByType(rid, RT_GC);\
if (!pGC)\
{\
client->errorValue = rid;\
@@ -252,23 +233,12 @@ SOFTWARE.
#endif /* NEED_DBE_BUF_BITS */
#define VALIDATE_DRAWABLE_AND_GC(drawID, pDraw, pGC, client)\
- if ((stuff->gc == INVALID) || (client->lastGCID != stuff->gc) ||\
- (client->lastDrawableID != drawID))\
{\
SECURITY_VERIFY_GEOMETRABLE(pDraw, drawID, client, DixWriteAccess);\
SECURITY_VERIFY_GC(pGC, stuff->gc, client, DixReadAccess);\
if ((pGC->depth != pDraw->depth) ||\
(pGC->pScreen != pDraw->pScreen))\
return (BadMatch);\
- client->lastDrawable = pDraw;\
- client->lastDrawableID = drawID;\
- client->lastGC = pGC;\
- client->lastGCID = stuff->gc;\
- }\
- else\
- {\
- pGC = client->lastGC;\
- pDraw = client->lastDrawable;\
}\
SET_DBE_DSTBUF(pDraw, drawID);\
if (pGC->serialNumber != pDraw->serialNumber)\
@@ -325,8 +295,6 @@ extern void UpdateCurrentTimeIf(void);
extern void InitSelections(void);
-extern void FlushClientCaches(XID /*id*/);
-
extern int dixDestroyPixmap(
void * /*value*/,
XID /*pid*/);
diff --git a/nx-X11/programs/Xserver/include/dixstruct.h b/nx-X11/programs/Xserver/include/dixstruct.h
index ca50c7ca7..3c97e5bb7 100644
--- a/nx-X11/programs/Xserver/include/dixstruct.h
+++ b/nx-X11/programs/Xserver/include/dixstruct.h
@@ -101,10 +101,6 @@ typedef struct _Client {
int clientGone;
int noClientException; /* this client died or needs to be
* killed */
- DrawablePtr lastDrawable;
- Drawable lastDrawableID;
- GCPtr lastGC;
- GContext lastGCID;
SaveSetElt *saveSet;
int numSaved;
void *screenPrivate[MAXSCREENS];
diff --git a/nx-X11/programs/Xserver/include/resource.h b/nx-X11/programs/Xserver/include/resource.h
index 164e7ccfc..30ae624fb 100644
--- a/nx-X11/programs/Xserver/include/resource.h
+++ b/nx-X11/programs/Xserver/include/resource.h
@@ -71,9 +71,9 @@ typedef unsigned long RESTYPE;
/* types for Resource routines */
-#define RT_WINDOW ((RESTYPE)1|RC_CACHED|RC_DRAWABLE)
-#define RT_PIXMAP ((RESTYPE)2|RC_CACHED|RC_DRAWABLE)
-#define RT_GC ((RESTYPE)3|RC_CACHED)
+#define RT_WINDOW ((RESTYPE)1|RC_DRAWABLE)
+#define RT_PIXMAP ((RESTYPE)2|RC_DRAWABLE)
+#define RT_GC ((RESTYPE)3)
#undef RT_FONT
#undef RT_CURSOR
#define RT_FONT ((RESTYPE)4)