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bridge: vlan dst_metadata hooks in ingress and egress paths

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- ingress hook:
    - if port is a tunnel port, use tunnel info in
      attached dst_metadata to map it to a local vlan
- egress hook:
    - if port is a tunnel port, use tunnel info attached to
      vlan to set dst_metadata on the skb

CC: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roopa Prabhu 2017-01-31 22:59:55 -08:00 • committed by David S. Miller
parent efa5356b0d
commit 11538d039a
6 changed files with 82 additions and 2 deletions
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8
net/bridge/br_input.c
View file

@ -21,6 +21,7 @@
#include <linux/export.h>
#include <linux/rculist.h>
#include "br_private.h"
#include "br_private_tunnel.h"
/* Hook for brouter */
br_should_route_hook_t __rcu *br_should_route_hook __read_mostly;
@ -57,7 +58,7 @@ static int br_pass_frame_up(struct sk_buff *skb)
indev = skb->dev;
skb->dev = brdev;
skb = br_handle_vlan(br, vg, skb);
skb = br_handle_vlan(br, NULL, vg, skb);
if (!skb)
return NET_RX_DROP;
/* update the multicast stats if the packet is IGMP/MLD */
@ -261,6 +262,11 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
return RX_HANDLER_CONSUMED;
p = br_port_get_rcu(skb->dev);
if (p->flags & BR_VLAN_TUNNEL) {
if (br_handle_ingress_vlan_tunnel(skb, p,
nbp_vlan_group_rcu(p)))
goto drop;
}
if (unlikely(is_link_local_ether_addr(dest))) {
u16 fwd_mask = p->br->group_fwd_mask_required;