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authorPablo Neira Ayuso <pablo@netfilter.org>2021-03-24 04:30:34 +0300
committerDavid S. Miller <davem@davemloft.net>2021-03-24 22:48:38 +0300
commitec9d16bab615ceda8ac22a7b4d2c7601bbe172cb (patch)
treec1e128588bf80d7b2e3509630c94e231ff088997 /net/bridge
parente4417d6950b06fe6c520e937b337daff093220ff (diff)
downloadlinux-ec9d16bab615ceda8ac22a7b4d2c7601bbe172cb.tar.xz
net: bridge: resolve forwarding path for bridge devices
Add .ndo_fill_forward_path for bridge devices. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_device.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 3f2f06b4dd27..c241719013f4 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -385,6 +385,32 @@ static int br_del_slave(struct net_device *dev, struct net_device *slave_dev)
return br_del_if(br, slave_dev);
}
+static int br_fill_forward_path(struct net_device_path_ctx *ctx,
+ struct net_device_path *path)
+{
+ struct net_bridge_fdb_entry *f;
+ struct net_bridge_port *dst;
+ struct net_bridge *br;
+
+ if (netif_is_bridge_port(ctx->dev))
+ return -1;
+
+ br = netdev_priv(ctx->dev);
+ f = br_fdb_find_rcu(br, ctx->daddr, 0);
+ if (!f || !f->dst)
+ return -1;
+
+ dst = READ_ONCE(f->dst);
+ if (!dst)
+ return -1;
+
+ path->type = DEV_PATH_BRIDGE;
+ path->dev = dst->br->dev;
+ ctx->dev = dst->dev;
+
+ return 0;
+}
+
static const struct ethtool_ops br_ethtool_ops = {
.get_drvinfo = br_getinfo,
.get_link = ethtool_op_get_link,
@@ -419,6 +445,7 @@ static const struct net_device_ops br_netdev_ops = {
.ndo_bridge_setlink = br_setlink,
.ndo_bridge_dellink = br_dellink,
.ndo_features_check = passthru_features_check,
+ .ndo_fill_forward_path = br_fill_forward_path,
};
static struct device_type br_type = {