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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2020-03-17 15:08:36 +0300
committerDavid S. Miller <davem@davemloft.net>2020-03-18 08:47:12 +0300
commit569da08228086ac6f7053d71c6cb713c1f115209 (patch)
treecccd412e56c23ec98a2ead61f057611f13f79af1 /net/bridge/br_netlink_tunnel.c
parent188c67dd1906eea5542268e4513ad6253fbf9297 (diff)
downloadlinux-569da08228086ac6f7053d71c6cb713c1f115209.tar.xz
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_netlink_tunnel.c')
-rw-r--r--net/bridge/br_netlink_tunnel.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bridge/br_netlink_tunnel.c b/net/bridge/br_netlink_tunnel.c
index 996a77620814..162998e2f039 100644
--- a/net/bridge/br_netlink_tunnel.c
+++ b/net/bridge/br_netlink_tunnel.c
@@ -193,8 +193,8 @@ static const struct nla_policy vlan_tunnel_policy[IFLA_BRIDGE_VLAN_TUNNEL_MAX +
[IFLA_BRIDGE_VLAN_TUNNEL_FLAGS] = { .type = NLA_U16 },
};
-static int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
- u16 vid, u32 tun_id, bool *changed)
+int br_vlan_tunnel_info(const struct net_bridge_port *p, int cmd,
+ u16 vid, u32 tun_id, bool *changed)
{
int err = 0;