NAT44: add support for session timeout (VPP-1272)

[vpp.git] / src / plugins / nat / nat64.h

diff --git a/src/plugins/nat/nat64.h b/src/plugins/nat/nat64.h
index 0c8fd82..d365e12 100644 (file)
--- a/src/plugins/nat/nat64.h
+++ b/src/plugins/nat/nat64.h
@@ -39,6 +39,11 @@ typedef enum
 #undef _
 } nat64_tcp_ses_state_t;
 
+enum
+{
+  NAT64_CLEANER_RESCHEDULE = 1,
+} nat64_cleaner_process_event_e;
+
 typedef struct
 {
   ip6_address_t prefix;
@@ -97,7 +102,11 @@ typedef struct
   u32 icmp_timeout;
   u32 tcp_trans_timeout;
   u32 tcp_est_timeout;
-  u32 tcp_incoming_syn_timeout;
+
+  /* Total count of interfaces enabled */
+  u32 total_enabled_count;
+  /* The process node which orcherstrates the cleanup */
+  u32 nat64_expire_walk_node_index;
 
   ip4_main_t *ip4_main;
   snat_main_t *sm;
@@ -209,19 +218,6 @@ int nat64_alloc_out_addr_and_port (u32 fib_index, snat_protocol_t proto,
                                   ip4_address_t * addr, u16 * port,
                                   u32 thread_index);
 
-/**
- * @brief Free IPv4 address and port pair from NAT64 pool.
- *
- * @param addr         IPv4 address to free.
- * @param port         Port number to free.
- * @param proto        L4 protocol.
- * @param thread_index Thread index.
- *
- * @returns 0 on success, non-zero value otherwise.
- */
-void nat64_free_out_addr_and_port (ip4_address_t * addr, u16 port,
-                                  snat_protocol_t proto, u32 thread_index);
-
 /**
  * @brief Set UDP session timeout.
  *
@@ -259,11 +255,10 @@ u32 nat64_get_icmp_timeout (void);
  *
  * @param trans Transitory timeout in seconds (if 0 reset to default value 240sec).
  * @param est Established timeout in seconds (if 0 reset to default value 7440sec).
- * @param incoming_syn Incoming SYN timeout in seconds (if 0 reset to default value 6sec).
  *
  * @returns 0 on success, non-zero value otherwise.
  */
-int nat64_set_tcp_timeouts (u32 trans, u32 est, u32 incoming_syn);
+int nat64_set_tcp_timeouts (u32 trans, u32 est);
 
 /**
  * @brief Get TCP transitory timeout.
@@ -279,13 +274,6 @@ u32 nat64_get_tcp_trans_timeout (void);
  */
 u32 nat64_get_tcp_est_timeout (void);
 
-/**
- * @brief Get TCP incoming SYN timeout.
- *
- * @returns TCP incoming SYN timeout in seconds.
- */
-u32 nat64_get_tcp_incoming_syn_timeout (void);
-
 /**
  * @brief Reset NAT64 session timeout.
  *
@@ -380,9 +368,6 @@ u32 nat64_get_worker_in2out (ip6_address_t * addr);
  */
 u32 nat64_get_worker_out2in (ip4_header_t * ip);
 
-#define u8_ptr_add(ptr, index) (((u8 *)ptr) + index)
-#define u16_net_add(u, val) clib_host_to_net_u16(clib_net_to_host_u16(u) + (val))
-
 #endif /* __included_nat64_h__ */
 
 /*