Provided by: selinux-utils_2.1.0-4.1ubuntu1_i386 bug

NAME

       selabel_x  -  userspace  SELinux  labeling  interface:  X Window System
       contexts backend.

SYNOPSIS

       #include <selinux/selinux.h>

       #include <selinux/label.h>

       int selabel_lookup(struct selabel_handle *hnd,
                          security_context_t *context,

                          const char *object_name, int object_type);

DESCRIPTION

       The X contexts backend maps from X  Window  System  object  names  into
       security  contexts.   It  is used to find the appropriate context for X
       Window System objects whose significance  and/or  usage  semantics  are
       determined  primarily  by name.  This backend is also used to determine
       the default context for labeling remotely connected X clients.

       The object_type argument should be set to one of the following values:

       SELABEL_X_PROP
              The  object_name  argument  specifies  the  name  of  a   window
              property, such as "WM_NAME".

       SELABEL_X_SELN
              The object_name argument specifies the name of a selection, such
              as "PRIMARY".

       SELABEL_X_EXT
              The object_name  argument  specifies  the  name  of  a  protocol
              extension, such as "RENDER".

       SELABEL_X_EVENT
              The  object_name  argument  specifies the name of an event type,
              such as "X11:ButtonPress".

       SELABEL_X_CLIENT
              The object_name argument is ignored and should be set  to  NULL.
              The default context for labeling remote X clients is returned.

       SELABEL_X_POLYPROP
              Like  SELABEL_X_PROP,  but  checks if the property was marked as
              being polyinstantiated.  See NOTES below.

       SELABEL_X_POLYSELN
              Like SELABEL_X_SELN, but checks if the selection was  marked  as
              being polyinstantiated.  See NOTES below.

OPTIONS

       In  addition  to  the global options described in selabel_open(3), this
       backend recognizes the following options:

       SELABEL_OPT_PATH
              A non-null value for this option specifies a path to a file that
              will be opened in lieu of the standard X contexts file.

NOTES

       Properties and selections are marked as either polyinstantiated or not.
       For these name types, the "POLY" option searches only the names  marked
       as  being  polyinstantiated,  while  the other option searches only the
       names marked as not being polyinstantiated.   Users  of  the  interface
       should  check  both  mappings,  optionally  taking  action based on the
       result (e.g. polyinstantiating the object).

SEE ALSO

       selabel_open(3), selabel_lookup(3), selabel_stats(3), selinux(8)

                                  18 Jun 2007                     selabel_x(5)