Currently flow_offload_fixup_ct() function assumes that only replied UDP
connections can be offloaded and hardcodes UDP_CT_REPLIED timeout value. To
enable UDP NEW connection offload in following patches extract the actual
connections state from ct->status and set the timeout according to it.
Signed-off-by: Vlad Buslov <vladbu@xxxxxxxxxx>
---
Notes:
Changes V5 -> V6:
- Revert the patch to V2 version. Pablo is going to fix the issue of
netfilter's flow table not updating ct->status flags.
Changes V3 -> V4:
- Rework the patch to decouple netfilter and act_ct timeout fixup
algorithms.
net/netfilter/nf_flow_table_core.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c
index 81c26a96c30b..04bd0ed4d2ae 100644
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -193,8 +193,11 @@ static void flow_offload_fixup_ct(struct nf_conn *ct)
timeout -= tn->offload_timeout;
} else if (l4num == IPPROTO_UDP) {
struct nf_udp_net *tn = nf_udp_pernet(net);
+ enum udp_conntrack state =
+ test_bit(IPS_SEEN_REPLY_BIT, &ct->status) ?
+ UDP_CT_REPLIED : UDP_CT_UNREPLIED;
- timeout = tn->timeouts[UDP_CT_REPLIED];
+ timeout = tn->timeouts[state];
timeout -= tn->offload_timeout;
} else {
return;
--
2.38.1
