f07fe36f22
Move patches to backport-5.10, since the series was accepted upstream Signed-off-by: Felix Fietkau <nbd@nbd.name>
81 lines
2.0 KiB
Diff
81 lines
2.0 KiB
Diff
From: Pablo Neira Ayuso <pablo@netfilter.org>
|
|
Date: Wed, 24 Mar 2021 02:30:33 +0100
|
|
Subject: [PATCH] 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>
|
|
---
|
|
|
|
--- a/include/linux/netdevice.h
|
|
+++ b/include/linux/netdevice.h
|
|
@@ -829,11 +829,18 @@ typedef u16 (*select_queue_fallback_t)(s
|
|
|
|
enum net_device_path_type {
|
|
DEV_PATH_ETHERNET = 0,
|
|
+ DEV_PATH_VLAN,
|
|
};
|
|
|
|
struct net_device_path {
|
|
enum net_device_path_type type;
|
|
const struct net_device *dev;
|
|
+ union {
|
|
+ struct {
|
|
+ u16 id;
|
|
+ __be16 proto;
|
|
+ } encap;
|
|
+ };
|
|
};
|
|
|
|
#define NET_DEVICE_PATH_STACK_MAX 5
|
|
--- a/net/8021q/vlan_dev.c
|
|
+++ b/net/8021q/vlan_dev.c
|
|
@@ -767,6 +767,20 @@ static int vlan_dev_get_iflink(const str
|
|
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,
|
|
@@ -805,6 +819,7 @@ static const struct net_device_ops vlan_
|
|
#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)
|