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lwt: Add cfg argument to build_state

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Add cfg and family arguments to lwt build state functions. cfg is a void
pointer and will either be a pointer to a fib_config or fib6_config
structure. The family parameter indicates which one (either AF_INET
or AF_INET6).

LWT encpasulation implementation may use the fib configuration to build
the LWT state.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert
2015-08-24 09:45:41 -07:00
committed by David S. Miller
parent 54cf7be992
commit 127eb7cd3c
7 changed files with 22 additions and 10 deletions
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3
include/net/lwtunnel.h
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@@ -26,6 +26,7 @@ struct lwtunnel_state {
struct lwtunnel_encap_ops {
int (*build_state)(struct net_device *dev, struct nlattr *encap,
unsigned int family, const void *cfg,
struct lwtunnel_state **ts);
int (*output)(struct sock *sk, struct sk_buff *skb);
int (*input)(struct sk_buff *skb);
@@ -80,6 +81,7 @@ int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
unsigned int num);
int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
struct nlattr *encap,
unsigned int family, const void *cfg,
struct lwtunnel_state **lws);
int lwtunnel_fill_encap(struct sk_buff *skb,
struct lwtunnel_state *lwtstate);
@@ -130,6 +132,7 @@ static inline int lwtunnel_encap_del_ops(const struct lwtunnel_encap_ops *op,
static inline int lwtunnel_build_state(struct net_device *dev, u16 encap_type,
struct nlattr *encap,
unsigned int family, const void *cfg,
struct lwtunnel_state **lws)
{
return -EOPNOTSUPP;