xnu-3789.21.4.tar.gz

[apple/xnu.git] / bsd / net / dlil.c

diff --git a/bsd/net/dlil.c b/bsd/net/dlil.c
index 7505ec20785c46805738e5fad19d67b4bd8304e7..84fb0898f766a3b05b0b3db7204f1182f4dfae90 100644 (file)
--- a/bsd/net/dlil.c
+++ b/bsd/net/dlil.c
@@ -1678,10 +1678,15 @@ dlil_attach_filter(struct ifnet *ifp, const struct iff_filter *if_filter,
        filter->filt_cookie = if_filter->iff_cookie;
        filter->filt_name = if_filter->iff_name;
        filter->filt_protocol = if_filter->iff_protocol;
-       filter->filt_input = if_filter->iff_input;
-       filter->filt_output = if_filter->iff_output;
-       filter->filt_event = if_filter->iff_event;
-       filter->filt_ioctl = if_filter->iff_ioctl;
+       /*
+        * Do not install filter callbacks for internal coproc interface
+        */
+       if (!IFNET_IS_INTCOPROC(ifp)) {
+               filter->filt_input = if_filter->iff_input;
+               filter->filt_output = if_filter->iff_output;
+               filter->filt_event = if_filter->iff_event;
+               filter->filt_ioctl = if_filter->iff_ioctl;
+       }
        filter->filt_detached = if_filter->iff_detached;
 
        lck_mtx_lock(&ifp->if_flt_lock);