nat: sessions get expired when fib table removed

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

diff --git a/src/plugins/nat/nat.h b/src/plugins/nat/nat.h
index ddcf4c9..8bec46a 100644 (file)
--- a/src/plugins/nat/nat.h
+++ b/src/plugins/nat/nat.h
@@ -198,6 +198,20 @@ typedef enum
 #define NAT_STATIC_MAPPING_FLAG_IDENTITY_NAT 4
 #define NAT_STATIC_MAPPING_FLAG_LB           8
 
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct
+{
+  // number of sessions in this vrf
+  u32 ses_count;
+
+  u32 rx_fib_index;
+  u32 tx_fib_index;
+
+  // is this vrf expired
+  u8 expired;
+}) per_vrf_sessions_t;
+/* *INDENT-ON* */
+
 /* *INDENT-OFF* */
 typedef CLIB_PACKED(struct
 {
@@ -258,10 +272,13 @@ typedef CLIB_PACKED(struct
 
   /* user index */
   u32 user_index;
+
+  /* per vrf sessions index */
+  u32 per_vrf_sessions_index;
+
 }) snat_session_t;
 /* *INDENT-ON* */
 
-
 typedef struct
 {
   ip4_address_t addr;
@@ -285,6 +302,12 @@ typedef struct
 /* *INDENT-ON* */
 } snat_address_t;
 
+typedef struct
+{
+  u32 fib_index;
+  u32 ref_count;
+} nat_fib_t;
+
 typedef struct
 {
   u32 fib_index;
@@ -414,6 +437,8 @@ typedef struct
   /* real thread index */
   u32 thread_index;
 
+  per_vrf_sessions_t *per_vrf_sessions_vec;
+
 } snat_main_per_thread_data_t;
 
 struct snat_main_s;
@@ -501,6 +526,9 @@ typedef struct snat_main_s
   u16 start_port;
   u16 end_port;
 
+  /* vector of fibs */
+  nat_fib_t *fibs;
+
   /* vector of outside fibs */
   nat_outside_fib_t *outside_fibs;
 
@@ -1350,6 +1378,8 @@ int snat_alloc_outside_address_and_port (snat_address_t * addresses,
                                         u16 port_per_thread,
                                         u32 snat_thread_index);
 
+void expire_per_vrf_sessions (u32 fib_index);
+
 /**
  * @brief Match NAT44 static mapping.
  *