Add bridging support (tested in 3.1-RELEASE by Steven Vetzal

<svetzal@icom.ca>).

1 files changed, 40 insertions, 12 deletions

diff --git a/sys/pci/if_mx.c b/sys/pci/if_mx.c
index ef04460..9795c70 100644
--- a/sys/pci/if_mx.c
+++ b/sys/pci/if_mx.c
@@ -29,7 +29,7 @@
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGE.
  *
- *	$Id: if_mx.c,v 1.39 1999/04/08 17:33:23 wpaul Exp $
+ *	$Id: if_mx.c,v 1.13 1999/04/08 17:38:05 wpaul Exp $
  */
 
 /*
@@ -76,6 +76,11 @@
 #include <net/bpf.h>
 #endif
 
+#include "opt_bdg.h"
+#ifdef BRIDGE
+#include <net/bridge.h>
+#endif
+
 #include <vm/vm.h>              /* for vtophys */
 #include <vm/pmap.h>            /* for vtophys */
 #include <machine/clock.h>      /* for DELAY */
@@ -94,7 +99,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-	"$Id: if_mx.c,v 1.39 1999/04/08 17:33:23 wpaul Exp $";
+	"$Id: if_mx.c,v 1.13 1999/04/08 17:38:05 wpaul Exp $";
 #endif
 
 /*
@@ -1749,21 +1754,44 @@ static void mx_rxeof(sc)
 
 #if NBPFILTER > 0
 		/*
-		 * Handle BPF listeners. Let the BPF user see the packet, but
-		 * don't pass it up to the ether_input() layer unless it's
+		 * Handle BPF listeners. Let the BPF user see the packet.
+		 */
+		if (ifp->if_bpf)
+			bpf_mtap(ifp, m);
+#endif
+#ifdef BRIDGE
+		if (do_bridge) {
+			struct ifnet *bdg_ifp ;
+			bdg_ifp = bridge_in(m);
+			if (bdg_ifp == BDG_DROP)
+				goto dropit ;
+			if (bdg_ifp != BDG_LOCAL)
+		    		bdg_forward(&m, bdg_ifp);
+			if (bdg_ifp != BDG_LOCAL &&
+				bdg_ifp != BDG_BCAST &&
+				bdg_ifp != BDG_MCAST)
+				goto dropit ;
+			goto getit ;
+		}
+#endif
+		/*			
+		 * Don't pass packet up to the ether_input() layer unless it's
 		 * a broadcast packet, multicast packet, matches our ethernet
 		 * address or the interface is in promiscuous mode.
 		 */
-		if (ifp->if_bpf) {
-			bpf_mtap(ifp, m);
-			if (ifp->if_flags & IFF_PROMISC &&
-				(bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr,
-						ETHER_ADDR_LEN) &&
-					(eh->ether_dhost[0] & 1) == 0)) {
+		if (ifp->if_flags & IFF_PROMISC &&
+		    (bcmp(eh->ether_dhost, sc->arpcom.ac_enaddr,
+		    ETHER_ADDR_LEN) &&
+		    (eh->ether_dhost[0] & 1) == 0)) {
+#ifdef BRIDGE
+dropit:
+#endif
+			if (m)
 				m_freem(m);
-				continue;
-			}
+			continue;
 		}
+#ifdef BRIDGE
+getit:
 #endif
 		/* Remove header from mbuf and pass it on. */
 		m_adj(m, sizeof(struct ether_header));