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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2017-09-27 16:12:44 +0300
committerDavid S. Miller <davem@davemloft.net>2017-09-29 06:02:55 +0100
commit5af48b59f35cf712793badabe1a574a0d0ce3bd3 (patch)
treed37a58d1a9d1dca19835760305f7a10be68aca5f /net/bridge/br_input.c
parentde9c8a6a5f083b1106300c842108c2452b25a896 (diff)
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net: bridge: add per-port group_fwd_mask with less restrictions
We need to be able to transparently forward most link-local frames via tunnels (e.g. vxlan, qinq). Currently the bridge's group_fwd_mask has a mask which restricts the forwarding of STP and LACP, but we need to be able to forward these over tunnels and control that forwarding on a per-port basis thus add a new per-port group_fwd_mask option which only disallows mac pause frames to be forwarded (they're always dropped anyway). The patch does not change the current default situation - all of the others are still restricted unless configured for forwarding. We have successfully tested this patch with LACP and STP forwarding over VxLAN and qinq tunnels. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_input.c')
-rw-r--r--net/bridge/br_input.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 7637f58c1226..7cb613776b31 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -289,6 +289,7 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
*
* Others reserved for future standardization
*/
+ fwd_mask |= p->group_fwd_mask;
switch (dest[5]) {
case 0x00: /* Bridge Group Address */
/* If STP is turned off,