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path: root/src/plugins/nat/out2in_ed.c
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Diffstat (limited to 'src/plugins/nat/out2in_ed.c')
-rw-r--r--src/plugins/nat/out2in_ed.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/src/plugins/nat/out2in_ed.c b/src/plugins/nat/out2in_ed.c
index 56906369ca6..9868fe751f2 100644
--- a/src/plugins/nat/out2in_ed.c
+++ b/src/plugins/nat/out2in_ed.c
@@ -310,6 +310,8 @@ create_session_for_static_mapping_ed (snat_main_t * sm,
&s->ext_host_nat_addr, s->ext_host_nat_port,
s->nat_proto, s->in2out.fib_index, s->flags, thread_index, 0);
+ per_vrf_sessions_register_session (s, thread_index);
+
return s;
}
@@ -407,6 +409,8 @@ create_bypass_for_fwd (snat_main_t * sm, vlib_buffer_t * b, ip4_header_t * ip,
kv.value = s - tsm->sessions;
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &kv, 1))
nat_elog_notice ("in2out_ed key add failed");
+
+ per_vrf_sessions_register_session (s, thread_index);
}
if (ip->protocol == IP_PROTOCOL_TCP)
@@ -651,6 +655,8 @@ nat44_ed_out2in_unknown_proto (snat_main_t * sm,
ip->protocol, thread_index, s - tsm->sessions);
if (clib_bihash_add_del_16_8 (&tsm->in2out_ed, &s_kv, 1))
nat_elog_notice ("in2out key add failed");
+
+ per_vrf_sessions_register_session (s, thread_index);
}
/* Update IP checksum */
@@ -780,8 +786,10 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
}
}
+ // lookup for session
if (clib_bihash_search_16_8 (&sm->out2in_ed, &kv0, &value0))
{
+ // session does not exist go slow path
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
@@ -791,11 +799,21 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
ed_value_get_session_index (&value0));
skip_lookup:
+
+ if (PREDICT_FALSE (per_vrf_sessions_is_expired (s0, thread_index)))
+ {
+ // session is closed, go slow path
+ nat_free_session_data (sm, s0, thread_index, 0);
+ nat_ed_session_delete (sm, s0, thread_index, 1);
+ next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
+ goto trace0;
+ }
+
if (s0->tcp_closed_timestamp)
{
if (now >= s0->tcp_closed_timestamp)
{
- // session is closed, go slow path
+ // session is closed, go slow path, freed in slow path
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
}
else
@@ -819,7 +837,6 @@ nat44_ed_out2in_fast_path_node_fn_inline (vlib_main_t * vm,
next[0] = NAT_NEXT_OUT2IN_ED_SLOW_PATH;
goto trace0;
}
- //
old_addr0 = ip0->dst_address.as_u32;
new_addr0 = ip0->dst_address.as_u32 = s0->in2out.addr.as_u32;