[PATCH AUTOSEL 5.4 12/19] netfilter: conntrack: Fix gre tunneling over ipv6

From: Sasha Levin
Date: Mon Mar 29 2021 - 18:31:18 EST


From: Ludovic Senecaux <linuxludo@xxxxxxx>

[ Upstream commit 8b2030b4305951f44afef80225f1475618e25a73 ]

This fix permits gre connections to be tracked within ip6tables rules

Signed-off-by: Ludovic Senecaux <linuxludo@xxxxxxx>
Acked-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netfilter/nf_conntrack_proto_gre.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index 5b05487a60d2..db11e403d818 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -218,9 +218,6 @@ int nf_conntrack_gre_packet(struct nf_conn *ct,
enum ip_conntrack_info ctinfo,
const struct nf_hook_state *state)
{
- if (state->pf != NFPROTO_IPV4)
- return -NF_ACCEPT;
-
if (!nf_ct_is_confirmed(ct)) {
unsigned int *timeouts = nf_ct_timeout_lookup(ct);

--
2.30.1