X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fplugins%2Fnat%2Fnat64_db.h;h=f1b93cf8928780ee8358de6c338e00698bc9ec98;hb=b4d3053;hp=394ca875bbb68d33549765b797e71a6c821fab2b;hpb=2ba92e32e0197f676dd905e5edcb4ff3e1bec241;p=vpp.git

diff --git a/src/plugins/nat/nat64_db.h b/src/plugins/nat/nat64_db.h
index 394ca875bbb..f1b93cf8928 100644
--- a/src/plugins/nat/nat64_db.h
+++ b/src/plugins/nat/nat64_db.h
@@ -68,6 +68,9 @@ typedef struct
   /* BIB lookup */
   clib_bihash_24_8_t in2out;
   clib_bihash_24_8_t out2in;
+
+  u32 limit;
+  u32 bib_entries_num;
 } nat64_db_bib_t;
 
 typedef struct
@@ -115,22 +118,44 @@ typedef struct
   /* session lookup */
   clib_bihash_48_8_t in2out;
   clib_bihash_48_8_t out2in;
+
+  u32 limit;
+  u32 st_entries_num;
 } nat64_db_st_t;
 
-typedef struct
+struct nat64_db_s;
+
+/**
+ * @brief Call back function to free NAT64 pool address and port when BIB
+ * entry is deleted.
+ */
+typedef void (*nat64_db_free_addr_port_function_t) (struct nat64_db_s * db,
+						    ip4_address_t * addr,
+						    u16 port, u8 proto);
+
+typedef struct nat64_db_s
 {
   nat64_db_bib_t bib;
   nat64_db_st_t st;
+  nat64_db_free_addr_port_function_t free_addr_port_cb;
+  u8 addr_free;
 } nat64_db_t;
 
 /**
  * @brief Initialize NAT64 DB.
  *
  * @param db NAT64 DB.
+ * @param bib_buckets Number of BIB hash buckets.
+ * @param bib_memory_size Memory size of BIB hash.
+ * @param st_buckets Number of session table hash buckets.
+ * @param st_memory_size Memory size of session table hash.
+ * @param free_addr_port_cb Call back function to free address and port.
  *
  * @returns 0 on success, non-zero value otherwise.
  */
-int nat64_db_init (nat64_db_t * db);
+int nat64_db_init (nat64_db_t * db, u32 bib_buckets, u32 bib_memory_size,
+		   u32 st_buckets, u32 st_memory_size,
+		   nat64_db_free_addr_port_function_t free_addr_port_cb);
 
 /**
  * @brief Create new NAT64 BIB entry.
@@ -296,6 +321,27 @@ void nad64_db_st_free_expired (nat64_db_t * db, u32 now);
  */
 void nat64_db_free_out_addr (nat64_db_t * db, ip4_address_t * out_addr);
 
+/*
+ * @brief Get ST entry index.
+ *
+ * @param db NAT64 DB.
+ * @param ste ST entry.
+ *
+ * @return ST entry index on success, ~0 otherwise.
+ */
+u32 nat64_db_st_entry_get_index (nat64_db_t * db, nat64_db_st_entry_t * ste);
+
+/**
+ * @brief Get ST entry by index and protocol.
+ *
+ * @param db NAT64 DB.
+ * @param proto L4 protocol.
+ * @param bibe_index ST entry index.
+ *
+ * @return BIB entry if found.
+ */
+nat64_db_st_entry_t *nat64_db_st_entry_by_index (nat64_db_t * db,
+						 u8 proto, u32 ste_index);
 #endif /* __included_nat64_db_h__ */
 
 /*