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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>
This commit is contained in:
Guillaume Nault 2017-04-24 14:16:06 +02:00 committed by David S. Miller
parent e0ee84ded7
commit c39855febc
1 changed files with 6 additions and 2 deletions
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8
net/l2tp/l2tp_eth.c
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@ -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;