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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2020-03-17 14:08:36 +0200
committerDavid S. Miller <davem@davemloft.net>2020-03-17 22:47:12 -0700
commit569da08228086ac6f7053d71c6cb713c1f115209 (patch)
treecccd412e56c23ec98a2ead61f057611f13f79af1 /net/bridge/br_private_tunnel.h
parent188c67dd1906eea5542268e4513ad6253fbf9297 (diff)
downloadlinux-569da08228086ac6f7053d71c6cb713c1f115209.tar.gz
net: bridge: vlan options: add support for tunnel mapping set/del
This patch adds support for manipulating vlan/tunnel mappings. The tunnel ids are globally unique and are one per-vlan. There were two trickier issues - first in order to support vlan ranges we have to compute the current tunnel id in the following way: - base tunnel id (attr) + current vlan id - starting vlan id This is in line how the old API does vlan/tunnel mapping with ranges. We already have the vlan range present, so it's redundant to add another attribute for the tunnel range end. It's simply base tunnel id + vlan range. And second to support removing mappings we need an out-of-band way to tell the option manipulating function because there are no special/reserved tunnel id values, so we use a vlan flag to denote the operation is tunnel mapping removal. Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_private_tunnel.h')
-rw-r--r--net/bridge/br_private_tunnel.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/bridge/br_private_tunnel.h b/net/bridge/br_private_tunnel.h
index b27a0c0371f2..c54cc26211d7 100644
--- a/net/bridge/br_private_tunnel.h
+++ b/net/bridge/br_private_tunnel.h
@@ -45,6 +45,8 @@ int br_handle_egress_vlan_tunnel(struct sk_buff *skb,
struct net_bridge_vlan *vlan);
bool vlan_tunid_inrange(const struct net_bridge_vlan *v_curr,
const struct net_bridge_vlan *v_last);
+int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
+ u16 vid, u32 tun_id, bool *changed);
#else
static inline int vlan_tunnel_init(struct net_bridge_vlan_group *vg)
{