ipv4: support for fib route lwtunnel encap attributes

This patch adds support in ipv4 fib functions to parse user
provided encap attributes and attach encap state data to fib_nh
and rtable.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 1 deletions

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 49c142bdf01e..5e0196084f1e 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -44,7 +44,9 @@ struct fib_config {
         u32                     fc_flow;
         u32                     fc_nlflags;
         struct nl_info          fc_nlinfo;
- };
+        struct nlattr           *fc_encap;
+        u16                     fc_encap_type;
+};
 
 struct fib_info;
 struct rtable;
@@ -89,6 +91,7 @@ struct fib_nh {
         struct rtable __rcu * __percpu *nh_pcpu_rth_output;
         struct rtable __rcu     *nh_rth_input;
         struct fnhe_hash_bucket __rcu *nh_exceptions;
+        struct lwtunnel_state   *nh_lwtstate;
 };
 
 /*
diff --git a/include/net/route.h b/include/net/route.h
index fe22d03afb6a..2d45f419477f 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -66,6 +66,7 @@ struct rtable {
 
         struct list_head        rt_uncached;
         struct uncached_list    *rt_uncached_list;
+        struct lwtunnel_state   *rt_lwtstate;
 };
 
 static inline bool rt_is_input_route(const struct rtable *rt)