nat: remove unused code

[vpp.git] / src / plugins / nat / nat44_hairpinning.c

diff --git a/src/plugins/nat/nat44_hairpinning.c b/src/plugins/nat/nat44_hairpinning.c
index 69a19b8..c0b8412 100644 (file)
--- a/src/plugins/nat/nat44_hairpinning.c
+++ b/src/plugins/nat/nat44_hairpinning.c
@@ -424,119 +424,6 @@ nat44_ed_hairpinning_unknown_proto (snat_main_t * sm,
 }
 #endif
 
-#ifndef CLIB_MARCH_VARIANT
-void
-nat44_reass_hairpinning (snat_main_t * sm,
-                        vlib_buffer_t * b0,
-                        ip4_header_t * ip0,
-                        u16 sport, u16 dport, u32 proto0, int is_ed)
-{
-  snat_session_key_t key0, sm0;
-  snat_session_t *s0;
-  clib_bihash_kv_8_8_t kv0, value0;
-  ip_csum_t sum0;
-  u32 new_dst_addr0 = 0, old_dst_addr0, ti = 0, si;
-  u16 new_dst_port0, old_dst_port0;
-  udp_header_t *udp0;
-  tcp_header_t *tcp0;
-  int rv;
-
-  key0.addr = ip0->dst_address;
-  key0.port = dport;
-  key0.protocol = proto0;
-  key0.fib_index = sm->outside_fib_index;
-  kv0.key = key0.as_u64;
-
-  udp0 = ip4_next_header (ip0);
-
-  /* Check if destination is static mappings */
-  if (!snat_static_mapping_match (sm, key0, &sm0, 1, 0, 0, 0, 0, 0))
-    {
-      new_dst_addr0 = sm0.addr.as_u32;
-      new_dst_port0 = sm0.port;
-      vnet_buffer (b0)->sw_if_index[VLIB_TX] = sm0.fib_index;
-    }
-  /* or active sessions */
-  else
-    {
-      if (sm->num_workers > 1)
-       ti =
-         (clib_net_to_host_u16 (udp0->dst_port) -
-          1024) / sm->port_per_thread;
-      else
-       ti = sm->num_workers;
-
-      if (is_ed)
-       {
-         clib_bihash_kv_16_8_t ed_kv, ed_value;
-         make_ed_kv (&ed_kv, &ip0->dst_address, &ip0->src_address,
-                     ip0->protocol, sm->outside_fib_index, udp0->dst_port,
-                     udp0->src_port);
-         rv = clib_bihash_search_16_8 (&sm->per_thread_data[ti].out2in_ed,
-                                       &ed_kv, &ed_value);
-         si = ed_value.value;
-       }
-      else
-       {
-         rv = clib_bihash_search_8_8 (&sm->per_thread_data[ti].out2in, &kv0,
-                                      &value0);
-         si = value0.value;
-       }
-      if (!rv)
-       {
-         s0 = pool_elt_at_index (sm->per_thread_data[ti].sessions, si);
-         new_dst_addr0 = s0->in2out.addr.as_u32;
-         new_dst_port0 = s0->in2out.port;
-         vnet_buffer (b0)->sw_if_index[VLIB_TX] = s0->in2out.fib_index;
-       }
-    }
-
-  /* Destination is behind the same NAT, use internal address and port */
-  if (new_dst_addr0)
-    {
-      old_dst_addr0 = ip0->dst_address.as_u32;
-      ip0->dst_address.as_u32 = new_dst_addr0;
-      sum0 = ip0->checksum;
-      sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0,
-                            ip4_header_t, dst_address);
-      ip0->checksum = ip_csum_fold (sum0);
-
-      old_dst_port0 = dport;
-      if (PREDICT_TRUE (new_dst_port0 != old_dst_port0 &&
-                       ip4_is_first_fragment (ip0)))
-       {
-         if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
-           {
-             tcp0 = ip4_next_header (ip0);
-             tcp0->dst = new_dst_port0;
-             sum0 = tcp0->checksum;
-             sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0,
-                                    ip4_header_t, dst_address);
-             sum0 = ip_csum_update (sum0, old_dst_port0, new_dst_port0,
-                                    ip4_header_t /* cheat */ , length);
-             tcp0->checksum = ip_csum_fold (sum0);
-           }
-         else
-           {
-             udp0->dst_port = new_dst_port0;
-             udp0->checksum = 0;
-           }
-       }
-      else
-       {
-         if (PREDICT_TRUE (proto0 == SNAT_PROTOCOL_TCP))
-           {
-             tcp0 = ip4_next_header (ip0);
-             sum0 = tcp0->checksum;
-             sum0 = ip_csum_update (sum0, old_dst_addr0, new_dst_addr0,
-                                    ip4_header_t, dst_address);
-             tcp0->checksum = ip_csum_fold (sum0);
-           }
-       }
-    }
-}
-#endif
-
 static inline uword
 nat44_hairpinning_fn_inline (vlib_main_t * vm,
                             vlib_node_runtime_t * node,