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authorPablo Neira Ayuso <pablo@netfilter.org>2021-03-24 04:30:33 +0300
committerDavid S. Miller <davem@davemloft.net>2021-03-24 22:48:38 +0300
commite4417d6950b06fe6c520e937b337daff093220ff (patch)
tree48433016596aea9bb123982ee15bb6232c995f51 /net/8021q
parentddb94eafab8b597b05904c8277194ea2d6357fa9 (diff)
downloadlinux-e4417d6950b06fe6c520e937b337daff093220ff.tar.xz
net: 8021q: resolve forwarding path for vlan devices
Add .ndo_fill_forward_path for vlan devices. For instance, assuming the following topology: IP forwarding / \ eth0.100 eth0 | eth0 . . . ethX ab:cd:ef:ab:cd:ef For packets going through IP forwarding to eth0.100 whose destination MAC address is ab:cd:ef:ab:cd:ef, dev_fill_forward_path() provides the following path: eth0.100 -> eth0 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q')
-rw-r--r--net/8021q/vlan_dev.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index dc1a197792e6..1b1955a63f7f 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -776,6 +776,20 @@ static int vlan_dev_get_iflink(const struct net_device *dev)
return real_dev->ifindex;
}
+static int vlan_dev_fill_forward_path(struct net_device_path_ctx *ctx,
+ struct net_device_path *path)
+{
+ struct vlan_dev_priv *vlan = vlan_dev_priv(ctx->dev);
+
+ path->type = DEV_PATH_VLAN;
+ path->encap.id = vlan->vlan_id;
+ path->encap.proto = vlan->vlan_proto;
+ path->dev = ctx->dev;
+ ctx->dev = vlan->real_dev;
+
+ return 0;
+}
+
static const struct ethtool_ops vlan_ethtool_ops = {
.get_link_ksettings = vlan_ethtool_get_link_ksettings,
.get_drvinfo = vlan_ethtool_get_drvinfo,
@@ -814,6 +828,7 @@ static const struct net_device_ops vlan_netdev_ops = {
#endif
.ndo_fix_features = vlan_dev_fix_features,
.ndo_get_iflink = vlan_dev_get_iflink,
+ .ndo_fill_forward_path = vlan_dev_fill_forward_path,
};
static void vlan_dev_free(struct net_device *dev)