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-rw-r--r--Xext/security.c2
-rw-r--r--Xext/xace.c9
-rw-r--r--Xext/xace.h7
-rw-r--r--Xext/xacestr.h4
-rw-r--r--Xext/xselinux.c29
-rw-r--r--dix/property.c10
-rw-r--r--dix/selection.c6
7 files changed, 36 insertions, 31 deletions
diff --git a/Xext/security.c b/Xext/security.c
index cd67120d9..e82b97626 100644
--- a/Xext/security.c
+++ b/Xext/security.c
@@ -910,7 +910,7 @@ SecurityProperty(CallbackListPtr *pcbl, pointer unused, pointer calldata)
{
XacePropertyAccessRec *rec = calldata;
SecurityStateRec *subj, *obj;
- ATOM name = rec->pProp->propertyName;
+ ATOM name = (*rec->ppProp)->propertyName;
Mask requested = rec->access_mode;
Mask allowed = SecurityResourceMask | DixReadAccess;
diff --git a/Xext/xace.c b/Xext/xace.c
index e88debc5f..8a8f8c61d 100644
--- a/Xext/xace.c
+++ b/Xext/xace.c
@@ -56,16 +56,17 @@ int XaceHookDispatch(ClientPtr client, int major)
}
int XaceHookPropertyAccess(ClientPtr client, WindowPtr pWin,
- PropertyPtr pProp, Mask access_mode)
+ PropertyPtr *ppProp, Mask access_mode)
{
- XacePropertyAccessRec rec = { client, pWin, pProp, access_mode, Success };
+ XacePropertyAccessRec rec = { client, pWin, ppProp, access_mode, Success };
CallCallbacks(&XaceHooks[XACE_PROPERTY_ACCESS], &rec);
return rec.status;
}
-int XaceHookSelectionAccess(ClientPtr client, Atom name, Mask access_mode)
+int XaceHookSelectionAccess(ClientPtr client,
+ Selection **ppSel, Mask access_mode)
{
- XaceSelectionAccessRec rec = { client, name, access_mode, Success };
+ XaceSelectionAccessRec rec = { client, ppSel, access_mode, Success };
CallCallbacks(&XaceHooks[XACE_SELECTION_ACCESS], &rec);
return rec.status;
}
diff --git a/Xext/xace.h b/Xext/xace.h
index 1f07d9fd2..bd69bca98 100644
--- a/Xext/xace.h
+++ b/Xext/xace.h
@@ -29,6 +29,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "region.h"
#include "window.h"
#include "property.h"
+#include "selection.h"
/* Default window background */
#define XaceBackgroundNoneState(w) ((w)->forcedBG ? BackgroundPixel : None)
@@ -68,9 +69,9 @@ extern int XaceHook(
*/
extern int XaceHookDispatch(ClientPtr ptr, int major);
extern int XaceHookPropertyAccess(ClientPtr ptr, WindowPtr pWin,
- PropertyPtr pProp, Mask access_mode);
-extern int XaceHookSelectionAccess(ClientPtr ptr, Atom name,
- Mask access_mode);
+ PropertyPtr *ppProp, Mask access_mode);
+extern int XaceHookSelectionAccess(ClientPtr ptr,
+ Selection **ppSel, Mask access_mode);
extern void XaceHookAuditEnd(ClientPtr ptr, int result);
/* Register a callback for a given hook.
diff --git a/Xext/xacestr.h b/Xext/xacestr.h
index e31d4246a..ba115a427 100644
--- a/Xext/xacestr.h
+++ b/Xext/xacestr.h
@@ -59,7 +59,7 @@ typedef struct {
typedef struct {
ClientPtr client;
WindowPtr pWin;
- PropertyPtr pProp;
+ PropertyPtr *ppProp;
Mask access_mode;
int status;
} XacePropertyAccessRec;
@@ -110,7 +110,7 @@ typedef struct {
/* XACE_SELECTION_ACCESS */
typedef struct {
ClientPtr client;
- Atom name;
+ Selection **ppSel;
Mask access_mode;
int status;
} XaceSelectionAccessRec;
diff --git a/Xext/xselinux.c b/Xext/xselinux.c
index 8d66ea199..a7d3999b0 100644
--- a/Xext/xselinux.c
+++ b/Xext/xselinux.c
@@ -134,7 +134,7 @@ static struct security_class_mapping map[] = {
{ "x_gc", { "", "", "destroy", "create", "getattr", "setattr", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "use", NULL }},
{ "x_font", { "", "", "destroy", "create", "getattr", "", "", "", "", "", "", "", "add_glyph", "remove_glyph", "", "", "", "", "", "", "", "", "", "", "use", NULL }},
{ "x_colormap", { "read", "write", "destroy", "create", "getattr", "", "", "", "", "", "", "", "add_color", "remove_color", "", "", "", "", "", "", "install", "uninstall", "", "", "use", NULL }},
- { "x_property", { "read", "write", "destroy", "create", "getattr", "setattr", NULL }},
+ { "x_property", { "read", "write", "destroy", "create", "getattr", "setattr", "", "", "", "", "", "", "", "", "", "", "write", NULL }},
{ "x_selection", { "read", "", "", "", "getattr", "setattr", NULL }},
{ "x_cursor", { "read", "write", "destroy", "create", "getattr", "setattr", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "use", NULL }},
{ "x_client", { "", "", "destroy", "", "getattr", "setattr", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "manage", NULL }},
@@ -691,14 +691,15 @@ SELinuxProperty(CallbackListPtr *pcbl, pointer unused, pointer calldata)
SELinuxSubjectRec *subj;
SELinuxObjectRec *obj;
SELinuxAuditRec auditdata = { .client = rec->client };
+ PropertyPtr pProp = *rec->ppProp;
int rc;
subj = dixLookupPrivate(&rec->client->devPrivates, subjectKey);
- obj = dixLookupPrivate(&rec->pProp->devPrivates, objectKey);
+ obj = dixLookupPrivate(&pProp->devPrivates, objectKey);
/* If this is a new object that needs labeling, do it now */
if (rec->access_mode & DixCreateAccess) {
- const char *name = NameForAtom(rec->pProp->propertyName);
+ const char *name = NameForAtom(pProp->propertyName);
security_context_t con;
security_id_t sid;
@@ -729,7 +730,7 @@ SELinuxProperty(CallbackListPtr *pcbl, pointer unused, pointer calldata)
}
/* Perform the security check */
- auditdata.property = rec->pProp->propertyName;
+ auditdata.property = pProp->propertyName;
rc = SELinuxDoCheck(subj, obj, SECCLASS_X_PROPERTY, rec->access_mode,
&auditdata);
if (rc != Success)
@@ -870,17 +871,21 @@ SELinuxSelection(CallbackListPtr *pcbl, pointer unused, pointer calldata)
SELinuxSubjectRec *subj;
SELinuxObjectRec sel_sid;
SELinuxAuditRec auditdata = { .client = rec->client };
+ Selection *pSel = *rec->ppSel;
int rc;
+ if (rec->access_mode & DixCreateAccess)
+ return; /* don't use create currently */
+
subj = dixLookupPrivate(&rec->client->devPrivates, subjectKey);
- rc = SELinuxSelectionToSID(rec->name, &sel_sid);
+ rc = SELinuxSelectionToSID(pSel->selection, &sel_sid);
if (rc != Success) {
rec->status = rc;
return;
}
- auditdata.selection = rec->name;
+ auditdata.selection = pSel->selection;
rc = SELinuxDoCheck(subj, &sel_sid, SECCLASS_X_SELECTION, rec->access_mode,
&auditdata);
if (rc != Success)
@@ -1206,16 +1211,8 @@ ProcSELinuxGetPropertyContext(ClientPtr client)
if (rc != Success)
return rc;
- pProp = wUserProps(pWin);
- while (pProp) {
- if (pProp->propertyName == stuff->property)
- break;
- pProp = pProp->next;
- }
- if (!pProp)
- return BadValue;
-
- rc = XaceHookPropertyAccess(client, pWin, pProp, DixGetAttrAccess);
+ rc = dixLookupProperty(&pProp, pWin, stuff->property, client,
+ DixGetAttrAccess);
if (rc != Success)
return rc;
diff --git a/dix/property.c b/dix/property.c
index e74becfa2..8b66ad6a2 100644
--- a/dix/property.c
+++ b/dix/property.c
@@ -103,7 +103,7 @@ dixLookupProperty(PropertyPtr *result, WindowPtr pWin, Atom propertyName,
break;
if (pProp)
- rc = XaceHookPropertyAccess(client, pWin, pProp, access_mode);
+ rc = XaceHookPropertyAccess(client, pWin, &pProp, access_mode);
*result = pProp;
return rc;
}
@@ -256,12 +256,14 @@ dixChangeWindowProperty(ClientPtr pClient, WindowPtr pWin, Atom property,
PropertyPtr pProp;
int sizeInBytes, totalSize, rc;
pointer data;
+ Mask access_mode;
sizeInBytes = format>>3;
totalSize = len * sizeInBytes;
+ access_mode = (mode == PropModeReplace) ? DixWriteAccess : DixBlendAccess;
/* first see if property already exists */
- rc = dixLookupProperty(&pProp, pWin, property, pClient, DixWriteAccess);
+ rc = dixLookupProperty(&pProp, pWin, property, pClient, access_mode);
if (rc == BadMatch) /* just add to list */
{
@@ -284,7 +286,7 @@ dixChangeWindowProperty(ClientPtr pClient, WindowPtr pWin, Atom property,
memmove((char *)data, (char *)value, totalSize);
pProp->size = len;
pProp->devPrivates = NULL;
- rc = XaceHookPropertyAccess(pClient, pWin, pProp,
+ rc = XaceHookPropertyAccess(pClient, pWin, &pProp,
DixCreateAccess|DixWriteAccess);
if (rc != Success) {
xfree(data);
@@ -588,7 +590,7 @@ ProcListProperties(ClientPtr client)
temppAtoms = pAtoms;
for (pProp = wUserProps(pWin); pProp; pProp = pProp->next) {
realProp = pProp;
- rc = XaceHookPropertyAccess(client, pWin, pProp, DixGetAttrAccess);
+ rc = XaceHookPropertyAccess(client, pWin, &realProp, DixGetAttrAccess);
if (rc == Success && realProp == pProp) {
*temppAtoms++ = pProp->propertyName;
numProps++;
diff --git a/dix/selection.c b/dix/selection.c
index e2e279a6f..52b1611c5 100644
--- a/dix/selection.c
+++ b/dix/selection.c
@@ -80,7 +80,7 @@ dixLookupSelection(Selection **result, Atom selectionName,
for (i = 0; i < NumCurrentSelections; i++)
if (CurrentSelections[i].selection == selectionName) {
pSel = CurrentSelections + i;
- rc = XaceHookSelectionAccess(client, selectionName, access_mode);
+ rc = XaceHookSelectionAccess(client, &pSel, access_mode);
break;
}
@@ -206,6 +206,10 @@ ProcSetSelectionOwner(ClientPtr client)
pSel = CurrentSelections + NumCurrentSelections;
pSel->selection = stuff->selection;
pSel->devPrivates = NULL;
+
+ /* security creation/labeling check */
+ (void)XaceHookSelectionAccess(client, &pSel, DixCreateAccess);
+
pSel->next = NULL;
if (NumCurrentSelections > 0)
CurrentSelections[NumCurrentSelections - 1].next = pSel;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 09:15:50 +0000