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Experimental window property holding security context.

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Eamon Walsh 2006-10-04 16:23:35 -04:00 committed by Eamon Walsh
parent 7f16c38ae2
commit 3714d91499
1 changed files with 36 additions and 0 deletions
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36
Xext/xselinux.c
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@ -35,6 +35,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#endif
#include <X11/X.h>
#include <X11/Xatom.h>
#include <X11/Xproto.h>
#include <X11/Xfuncproto.h>
#include "dixstruct.h"
@ -120,6 +121,10 @@ static char **extensionTypes = NULL;
static int extensionTypesCount = 0;
static char *XSELinuxExtensionTypeDefault = NULL;
/* Atoms for SELinux window labeling properties */
Atom atom_ctx;
Atom atom_client_ctx;
/* security context for non-local clients */
static char *XSELinuxNonlocalContextDefault = NULL;
@ -1196,6 +1201,28 @@ CALLBACK(XSELinuxClientState)
}
} /* XSELinuxClientState */
/* Labeling callbacks */
CALLBACK(XSELinuxWindowInit)
{
XaceWindowRec *rec = (XaceWindowRec*)calldata;
security_context_t ctx;
int rc;
if (HAVESTATE(rec->client)) {
rc = avc_sid_to_context(SID(rec->client), &ctx);
if (rc < 0)
FatalError("Failed to get security context!\n");
rc = ChangeWindowProperty(rec->pWin, atom_client_ctx, XA_STRING, 8,
PropModeReplace, strlen(ctx), ctx, FALSE);
freecon(ctx);
}
else
rc = ChangeWindowProperty(rec->pWin, atom_client_ctx, XA_STRING, 8,
PropModeReplace, 10, "UNLABELED!", FALSE);
if (rc != Success)
FatalError("Failed to set context property on window!\n");
} /* XSELinuxWindowInit */
static char *XSELinuxKeywords[] = {
#define XSELinuxKeywordComment 0
"#",
@ -1844,6 +1871,14 @@ XSELinuxExtensionInit(INITARGS)
if (!AddCallback(&ClientStateCallback, XSELinuxClientState, NULL))
return;
/* Create atoms for doing window labeling */
atom_ctx = MakeAtom("_SELINUX_CONTEXT", 16, 1);
if (atom_ctx == BAD_RESOURCE)
return;
atom_client_ctx = MakeAtom("_SELINUX_CLIENT_CONTEXT", 23, 1);
if (atom_client_ctx == BAD_RESOURCE)
return;
/* Load the config file. If this fails, shut down the server,
* since an unknown security status is worse than no security.
*
@ -1873,6 +1908,7 @@ XSELinuxExtensionInit(INITARGS)
XaceRegisterCallback(XACE_BACKGRND_ACCESS, XSELinuxBackgrnd, NULL);
XaceRegisterCallback(XACE_DRAWABLE_ACCESS, XSELinuxDrawable, NULL);
XaceRegisterCallback(XACE_PROPERTY_ACCESS, XSELinuxProperty, NULL);
XaceRegisterCallback(XACE_WINDOW_INIT, XSELinuxWindowInit, NULL);
/* XaceRegisterCallback(XACE_DECLARE_EXT_SECURE, XSELinuxDeclare, NULL);
XaceRegisterCallback(XACE_DEVICE_ACCESS, XSELinuxDevice, NULL); */