From 7a3f5b0de3647c854e34269c3332d7a1e902901a Mon Sep 17 00:00:00 2001
From: Ryoga Saito <contact@proelbtn.com>
Date: Tue, 17 Aug 2021 08:39:37 +0000
Subject: netfilter: add netfilter hooks to SRv6 data plane

This patch introduces netfilter hooks for solving the problem that
conntrack couldn't record both inner flows and outer flows.

This patch also introduces a new sysctl toggle for enabling lightweight
tunnel netfilter hooks.

Signed-off-by: Ryoga Saito <contact@proelbtn.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/core/lwtunnel.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'net/core/lwtunnel.c')

diff --git a/net/core/lwtunnel.c b/net/core/lwtunnel.c
index d0ae987d2de9..2820aca2173a 100644
--- a/net/core/lwtunnel.c
+++ b/net/core/lwtunnel.c
@@ -23,6 +23,9 @@
 #include <net/ip6_fib.h>
 #include <net/rtnh.h>
 
+DEFINE_STATIC_KEY_FALSE(nf_hooks_lwtunnel_enabled);
+EXPORT_SYMBOL_GPL(nf_hooks_lwtunnel_enabled);
+
 #ifdef CONFIG_MODULES
 
 static const char *lwtunnel_encap_str(enum lwtunnel_encap_types encap_type)
-- 
cgit