Index: sys/net/if_ethersubr.c
===================================================================
--- sys/net/if_ethersubr.c	(revision 24)
+++ sys/net/if_ethersubr.c	(working copy)
@@ -205,7 +205,11 @@
 	unsigned          etype;
 	struct ifqueue *  (*input_func)(struct ifnet *ifp, struct mbuf *m);
 } *etype_list_head;
+
+#ifdef PFIL_HOOKS
+struct pfil_head eth_input_pfil_hook;
 #endif
+#endif
 static struct timeval bigpktppslim_last;
 static int bigpktppslim = 2;	/* XXX */
 static int bigpktpps_count;
@@ -719,6 +723,13 @@
 		return;
 	}
 
+#if defined(__QNXNTO__) && defined(PFIL_HOOKS)
+	if (pfil_run_hooks(&eth_input_pfil_hook, &m, ifp, PFIL_IN) != 0)
+		return;
+	if (m == NULL)
+		return;
+#endif
+
 #ifdef MBUFTRACE
 	m_claimm(m, &ec->ec_rx_mowner);
 #endif
Index: lib/socket/public/net/if.h
===================================================================
--- lib/socket/public/net/if.h	(revision 24)
+++ lib/socket/public/net/if.h	(working copy)
@@ -975,6 +975,7 @@
 extern struct ifnet *lo0ifp;
 extern size_t if_indexlim;
 
+extern struct pfil_head eth_input_pfil_hook;
 void    ether_input(struct ifnet *, struct mbuf *);
 
 void	if_alloc_sadl(struct ifnet *);