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authornsayer <nsayer@FreeBSD.org>1999-03-31 13:50:52 +0000
committernsayer <nsayer@FreeBSD.org>1999-03-31 13:50:52 +0000
commit3a70671064d720ad2af4292f514b43494569d745 (patch)
tree009e154ed20d23b12f184da221b4181b3a9bae7e /sys/pci
parent84a1abbf131ff8204f3aabd770abec06b1befa94 (diff)
downloadFreeBSD-src-3a70671064d720ad2af4292f514b43494569d745.zip
FreeBSD-src-3a70671064d720ad2af4292f514b43494569d745.tar.gz
Add support for bridging to if_tx.c
PR: 10534 Submitted by: nsayer
Diffstat (limited to 'sys/pci')
-rw-r--r--sys/pci/if_tx.c44
1 files changed, 43 insertions, 1 deletions
diff --git a/sys/pci/if_tx.c b/sys/pci/if_tx.c
index b6b7fc9..cd17237 100644
--- a/sys/pci/if_tx.c
+++ b/sys/pci/if_tx.c
@@ -1,5 +1,5 @@
/* $OpenBSD: if_tx.c,v 1.3 1998/10/10 04:30:09 jason Exp $ */
-/* $Id: if_tx.c,v 1.20 1998/12/14 06:32:56 dillon Exp $ */
+/* $Id: if_tx.c,v 1.22 1999/03/14 08:30:23 semenu Exp $ */
/*-
* Copyright (c) 1997 Semen Ustimenko (semen@iclub.nsu.ru)
@@ -69,6 +69,7 @@
#include "bpfilter.h"
#include "pci.h"
+#include "opt_bdg.h"
#if NPCI > 0
#include <sys/param.h>
@@ -135,6 +136,11 @@
#include <pci/pcivar.h>
#include <pci/if_txvar.h>
+
+#ifdef BRIDGE
+#include <net/bridge.h>
+#endif
+
#endif
#if defined(__FreeBSD__)
@@ -921,7 +927,43 @@ epic_rx_done __P((
#else /* __OpenBSD__ */
bpf_mtap( sc->sc_if.if_bpf, m );
#endif /* __FreeBSD__ */
+#endif /* NBPFILTER */
+
+#ifdef BRIDGE
+ if (do_bridge) {
+ struct ifnet *bdg_ifp ;
+ bdg_ifp = bridge_in(m);
+ if (bdg_ifp == BDG_DROP) {
+ if (m)
+ m_free(m);
+ continue; /* and drop */
+ }
+ if (bdg_ifp != BDG_LOCAL)
+ bdg_forward(&m, bdg_ifp);
+ if (bdg_ifp != BDG_LOCAL && bdg_ifp != BDG_BCAST &&
+ bdg_ifp != BDG_MCAST) {
+ if (m)
+ m_free(m);
+ continue; /* and drop */
+ }
+ /* all others accepted locally */
+ }
+#endif
+#if NBPFILTER > 0
+#ifdef BRIDGE
+ /*
+ * This deserves explanation
+ * If the bridge is _on_, then the following check
+ * must not be done because occasionally the bridge
+ * gets packets that are local but have the ethernet
+ * address of one of the other interfaces.
+ *
+ * But if the bridge is off, then we have to drop
+ * stuff that came in just via bpfilter.
+ */
+ if (!do_bridge)
+#endif
/* Accept only our packets, broadcasts and multicasts */
if( (eh->ether_dhost[0] & 1) == 0 &&
bcmp(eh->ether_dhost,sc->sc_macaddr,ETHER_ADDR_LEN)){
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