nat: elog rewrite for multi-worker support

[vpp.git] / src / plugins / nat / nat_inlines.h

diff --git a/src/plugins/nat/nat_inlines.h b/src/plugins/nat/nat_inlines.h
index 4bdb2cb..ae8ed7f 100644 (file)
--- a/src/plugins/nat/nat_inlines.h
+++ b/src/plugins/nat/nat_inlines.h
@@ -21,6 +21,7 @@
 
 #include <vnet/fib/ip4_fib.h>
 #include <nat/nat.h>
+#include <nat/nat_ha.h>
 
 always_inline u32
 ip_proto_to_snat_proto (u8 ip_proto)
@@ -159,6 +160,8 @@ nat44_delete_user_with_no_session (snat_main_t * sm, snat_user_t * u,
       pool_put_index (tsm->list_pool, u->sessions_per_user_list_head_index);
       pool_put (tsm->users, u);
       clib_bihash_add_del_8_8 (&tsm->user_hash, &kv, 0);
+      vlib_set_simple_counter (&sm->total_users, thread_index, 0,
+                              pool_elts (tsm->users));
     }
 }
 
@@ -172,11 +175,11 @@ nat44_delete_session (snat_main_t * sm, snat_session_t * ses,
   snat_user_key_t u_key;
   snat_user_t *u;
 
-  nat_log_debug ("session deleted %U", format_snat_session, tsm, ses);
-
   clib_dlist_remove (tsm->list_pool, ses->per_user_index);
   pool_put_index (tsm->list_pool, ses->per_user_index);
   pool_put (tsm->sessions, ses);
+  vlib_set_simple_counter (&sm->total_sessions, thread_index, 0,
+                          pool_elts (tsm->sessions));
 
   u_key.addr = ses->in2out.addr;
   u_key.fib_index = ses->in2out.fib_index;
@@ -200,6 +203,10 @@ always_inline int
 nat44_set_tcp_session_state_i2o (snat_main_t * sm, snat_session_t * ses,
                                 tcp_header_t * tcp, u32 thread_index)
 {
+  if ((ses->state == 0) && (tcp->flags & TCP_FLAG_RST))
+    ses->state = NAT44_SES_RST;
+  if ((ses->state == NAT44_SES_RST) && !(tcp->flags & TCP_FLAG_RST))
+    ses->state = 0;
   if ((tcp->flags & TCP_FLAG_ACK) && (ses->state & NAT44_SES_I2O_SYN) &&
       (ses->state & NAT44_SES_O2I_SYN))
     ses->state = 0;
@@ -215,11 +222,10 @@ nat44_set_tcp_session_state_i2o (snat_main_t * sm, snat_session_t * ses,
       if (clib_net_to_host_u32 (tcp->ack_number) > ses->o2i_fin_seq)
        ses->state |= NAT44_SES_O2I_FIN_ACK;
     }
-  if (nat44_is_ses_closed (ses))
+  if (nat44_is_ses_closed (ses)
+      && !(ses->flags & SNAT_SESSION_FLAG_OUTPUT_FEATURE))
     {
-      nat_log_debug ("TCP close connection %U", format_snat_session,
-                    &sm->per_thread_data[thread_index], ses);
-      nat_free_session_data (sm, ses, thread_index);
+      nat_free_session_data (sm, ses, thread_index, 0);
       nat44_delete_session (sm, ses, thread_index);
       return 1;
     }
@@ -230,6 +236,10 @@ always_inline int
 nat44_set_tcp_session_state_o2i (snat_main_t * sm, snat_session_t * ses,
                                 tcp_header_t * tcp, u32 thread_index)
 {
+  if ((ses->state == 0) && (tcp->flags & TCP_FLAG_RST))
+    ses->state = NAT44_SES_RST;
+  if ((ses->state == NAT44_SES_RST) && !(tcp->flags & TCP_FLAG_RST))
+    ses->state = 0;
   if ((tcp->flags & TCP_FLAG_ACK) && (ses->state & NAT44_SES_I2O_SYN) &&
       (ses->state & NAT44_SES_O2I_SYN))
     ses->state = 0;
@@ -247,9 +257,7 @@ nat44_set_tcp_session_state_o2i (snat_main_t * sm, snat_session_t * ses,
     }
   if (nat44_is_ses_closed (ses))
     {
-      nat_log_debug ("TCP close connection %U", format_snat_session,
-                    &sm->per_thread_data[thread_index], ses);
-      nat_free_session_data (sm, ses, thread_index);
+      nat_free_session_data (sm, ses, thread_index, 0);
       nat44_delete_session (sm, ses, thread_index);
       return 1;
     }
@@ -280,11 +288,16 @@ nat44_session_get_timeout (snat_main_t * sm, snat_session_t * s)
 }
 
 always_inline void
-nat44_session_update_counters (snat_session_t * s, f64 now, uword bytes)
+nat44_session_update_counters (snat_session_t * s, f64 now, uword bytes,
+                              u32 thread_index)
 {
   s->last_heard = now;
   s->total_pkts++;
   s->total_bytes += bytes;
+  nat_ha_sref (&s->out2in.addr, s->out2in.port, &s->ext_host_addr,
+              s->ext_host_port, s->out2in.protocol, s->out2in.fib_index,
+              s->total_pkts, s->total_bytes, thread_index,
+              &s->ha_last_refreshed, now);
 }
 
 /** \brief Per-user LRU list maintenance */
@@ -371,7 +384,7 @@ mss_clamping (snat_main_t * sm, tcp_header_t * tcp, ip_csum_t * sum)
              *sum =
                ip_csum_update (*sum, mss, sm->mss_value_net, ip4_header_t,
                                length);
-             clib_memcpy (data + 2, &sm->mss_value_net, 2);
+             clib_memcpy_fast (data + 2, &sm->mss_value_net, 2);
            }
          return;
        }