From c39855febc0e7332db389fd4017ab163589b1b20 Mon Sep 17 00:00:00 2001
From: Guillaume Nault <g.nault@alphalink.fr>
Date: Mon, 24 Apr 2017 14:16:06 +0200
Subject: [PATCH 1/2] l2tp: set name_assign_type for devices created by
l2tp_eth.c
Export naming scheme used when creating l2tpeth interfaces
(/sys/class/net/<iface>/name_assign_type). This let userspace know if
the device's name has been generated automatically or defined manually.
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Acked-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/l2tp/l2tp_eth.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index b722d559c5448..5e44b3cc12121 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -258,6 +258,7 @@ static void l2tp_eth_adjust_mtu(struct l2tp_tunnel *tunnel,
static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg)
{
+ unsigned char name_assign_type;
struct net_device *dev;
char name[IFNAMSIZ];
struct l2tp_tunnel *tunnel;
@@ -281,8 +282,11 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p
goto out;
}
strlcpy(name, cfg->ifname, IFNAMSIZ);
- } else
+ name_assign_type = NET_NAME_USER;
+ } else {
strcpy(name, L2TP_ETH_DEV_NAME);
+ name_assign_type = NET_NAME_ENUM;
+ }
session = l2tp_session_create(sizeof(*spriv), tunnel, session_id,
peer_session_id, cfg);
@@ -291,7 +295,7 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p
goto out;
}
- dev = alloc_netdev(sizeof(*priv), name, NET_NAME_UNKNOWN,
+ dev = alloc_netdev(sizeof(*priv), name, name_assign_type,
l2tp_eth_dev_setup);
if (!dev) {
rc = -ENOMEM;
From a485c2b877619935f7346146791f0d22f5da723a Mon Sep 17 00:00:00 2001
From: Guillaume Nault <g.nault@alphalink.fr>
Date: Mon, 24 Apr 2017 14:16:07 +0200
Subject: [PATCH 2/2] l2tp: define "l2tpeth" device type
Export type of l2tpeth interfaces to userspace
(/sys/class/net/<iface>/uevent).
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Acked-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/l2tp/l2tp_eth.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index 5e44b3cc12121..59aba8aeac03f 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -130,8 +130,13 @@ static const struct net_device_ops l2tp_eth_netdev_ops = {
.ndo_set_mac_address = eth_mac_addr,
};
+static struct device_type l2tpeth_type = {
+ .name = "l2tpeth",
+};
+
static void l2tp_eth_dev_setup(struct net_device *dev)
{
+ SET_NETDEV_DEVTYPE(dev, &l2tpeth_type);
ether_setup(dev);
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->features |= NETIF_F_LLTX;