nat: remove unused code

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

diff --git a/src/plugins/nat/nat.h b/src/plugins/nat/nat.h
index 46dc040..be82ced 100644 (file)
--- a/src/plugins/nat/nat.h
+++ b/src/plugins/nat/nat.h
@@ -142,13 +142,6 @@ typedef struct
   };
 } snat_user_key_t;
 
-typedef struct
-{
-  u32 sw_if_index;
-  u32 next_index;
-  u8 cached;
-} nat44_reass_trace_t;
-
 /* NAT API Configuration flags */
 #define foreach_nat_config_flag \
   _(0x01, IS_TWICE_NAT)         \
@@ -223,8 +216,6 @@ _(BAD_ICMP_TYPE, "unsupported ICMP type")               \
 _(MAX_SESSIONS_EXCEEDED, "maximum sessions exceeded")   \
 _(MAX_USER_SESS_EXCEEDED, "max user sessions exceeded") \
 _(DROP_FRAGMENT, "drop fragment")                       \
-_(MAX_REASS, "maximum reassemblies exceeded")           \
-_(MAX_FRAG, "maximum fragments per reassembly exceeded")\
 _(CANNOT_CREATE_USER, "cannot create NAT user")         \
 _(NON_SYN, "non-SYN packet try to create session")      \
 _(TCP_PACKETS, "TCP packets")                           \
@@ -253,8 +244,6 @@ _(NO_TRANSLATION, "no translation")                     \
 _(MAX_SESSIONS_EXCEEDED, "maximum sessions exceeded")   \
 _(MAX_USER_SESS_EXCEEDED, "max user sessions exceeded") \
 _(DROP_FRAGMENT, "drop fragment")                       \
-_(MAX_REASS, "maximum reassemblies exceeded")           \
-_(MAX_FRAG, "maximum fragments per reassembly exceeded")\
 _(CANNOT_CREATE_USER, "cannot create NAT user")         \
 _(NON_SYN, "non-SYN packet try to create session")      \
 _(TCP_PACKETS, "TCP packets")                           \
@@ -320,6 +309,10 @@ typedef CLIB_PACKED(struct
   u32 per_user_index;
   u32 per_user_list_head_index;
 
+  /* index in global LRU list */
+  u32 global_lru_index;
+  f64 last_lru_update;
+
   /* Last heard timer */
   f64 last_heard;
 
@@ -357,8 +350,6 @@ typedef struct
   u32 sessions_per_user_list_head_index;
   u32 nsessions;
   u32 nstaticsessions;
-  /* discovered minimum session timeout time */
-  u64 min_session_timeout;
 } snat_user_t;
 
 typedef struct
@@ -521,20 +512,16 @@ typedef struct
   /* Pool of doubly-linked list elements */
   dlist_elt_t *list_pool;
 
+  /* LRU session list - head is stale, tail is fresh */
+  dlist_elt_t *global_lru_pool;
+  u32 global_lru_head_index;
+
   /* NAT thread index */
   u32 snat_thread_index;
 
   /* real thread index */
   u32 thread_index;
 
-  /* discovered minimum session timeout time */
-  u64 min_session_timeout;
-
-  /* session scavenging */
-  u32 cleared;
-  u32 cleanup_runs;
-  f64 cleanup_timeout;
-
 } snat_main_per_thread_data_t;
 
 struct snat_main_s;
@@ -703,10 +690,10 @@ typedef struct snat_main_s
   u8 out2in_dpo;
   u8 endpoint_dependent;
   u32 translation_buckets;
-  u32 translation_memory_size;
+  uword translation_memory_size;
   u32 max_translations;
   u32 user_buckets;
-  u32 user_memory_size;
+  uword user_memory_size;
   u32 max_translations_per_user;
   u32 outside_vrf_id;
   u32 outside_fib_index;
@@ -714,9 +701,6 @@ typedef struct snat_main_s
   u32 inside_fib_index;
 
   /* values of various timeouts */
-
-  // min timeout of all proto timeouts
-  u32 min_timeout;
   // proto timeouts
   u32 udp_timeout;
   u32 tcp_transitory_timeout;
@@ -1148,9 +1132,6 @@ void nat44_ed_hairpinning_unknown_proto (snat_main_t * sm, vlib_buffer_t * b,
 int snat_hairpinning (snat_main_t * sm, vlib_buffer_t * b0,
                      ip4_header_t * ip0, udp_header_t * udp0,
                      tcp_header_t * tcp0, u32 proto0, int is_ed);
-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);
 
 /* Call back functions for clib_bihash_add_or_overwrite_stale */
 int nat44_i2o_ed_is_idle_session_cb (clib_bihash_kv_16_8_t * kv, void *arg);