From ebdf190a9c4a514329de7e5e9b9178c3af055122 Mon Sep 17 00:00:00 2001 From: Matus Fabian Date: Fri, 4 May 2018 03:57:42 -0700 Subject: NAT44: TCP connection close detection (VPP-1266) Change-Id: Iba1cc1179ee80478e29888790a6476571d1904dc Signed-off-by: Matus Fabian --- src/plugins/nat/out2in.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'src/plugins/nat/out2in.c') diff --git a/src/plugins/nat/out2in.c b/src/plugins/nat/out2in.c index a0128b8d61d..c0f5a3c835a 100755 --- a/src/plugins/nat/out2in.c +++ b/src/plugins/nat/out2in.c @@ -407,6 +407,11 @@ create_bypass_for_fwd(snat_main_t * sm, ip4_header_t * ip, u32 rx_fib_index, clib_warning ("in2out_ed key add failed"); } + if (ip->protocol == IP_PROTOCOL_TCP) + { + tcp_header_t *tcp = ip4_next_header(ip); + nat44_set_tcp_session_state (sm, s, tcp, thread_index); + } /* Per-user LRU list maintenance */ clib_dlist_remove (tsm->list_pool, s->per_user_index); clib_dlist_addtail (tsm->list_pool, s->per_user_list_head_index, @@ -1058,6 +1063,7 @@ snat_out2in_lb (snat_main_t *sm, ip->src_address.as_u32 = s->ext_host_nat_addr.as_u32; } tcp->checksum = ip_csum_fold(sum); + nat44_set_tcp_session_state (sm, s, tcp, thread_index); } else { @@ -1300,6 +1306,7 @@ snat_out2in_node_fn (vlib_main_t * vm, ip4_header_t /* cheat */, length /* changed member */); tcp0->checksum = ip_csum_fold(sum0); + nat44_set_tcp_session_state (sm, s0, tcp0, thread_index); } else { @@ -1478,6 +1485,7 @@ snat_out2in_node_fn (vlib_main_t * vm, ip4_header_t /* cheat */, length /* changed member */); tcp1->checksum = ip_csum_fold(sum1); + nat44_set_tcp_session_state (sm, s1, tcp1, thread_index); } else { @@ -1692,6 +1700,7 @@ snat_out2in_node_fn (vlib_main_t * vm, ip4_header_t /* cheat */, length /* changed member */); tcp0->checksum = ip_csum_fold(sum0); + nat44_set_tcp_session_state (sm, s0, tcp0, thread_index); } else { @@ -1960,6 +1969,7 @@ nat44_out2in_reass_node_fn (vlib_main_t * vm, ip4_header_t /* cheat */, length /* changed member */); tcp0->checksum = ip_csum_fold(sum0); + nat44_set_tcp_session_state (sm, s0, tcp0, thread_index); } else { -- cgit 1.2.3-korg