NAT44: add opaque string tag to static mapping APIs (VPP-1147)

[vpp.git] / src / plugins / nat / nat_reass.c

diff --git a/src/plugins/nat/nat_reass.c b/src/plugins/nat/nat_reass.c
index 239bc70..0a3660d 100644 (file)
--- a/src/plugins/nat/nat_reass.c
+++ b/src/plugins/nat/nat_reass.c
@@ -19,6 +19,7 @@
 
 #include <vnet/vnet.h>
 #include <nat/nat_reass.h>
+#include <nat/nat_ipfix_logging.h>
 
 nat_reass_main_t nat_reass_main;
 
@@ -194,6 +195,27 @@ nat_ip4_reass_lookup (nat_reass_ip4_key_t * k, f64 now)
   return 0;
 }
 
+nat_reass_ip4_t *
+nat_ip4_reass_find (ip4_address_t src, ip4_address_t dst, u16 frag_id,
+                   u8 proto)
+{
+  nat_reass_main_t *srm = &nat_reass_main;
+  nat_reass_ip4_t *reass = 0;
+  nat_reass_ip4_key_t k;
+  f64 now = vlib_time_now (srm->vlib_main);
+
+  k.src.as_u32 = src.as_u32;
+  k.dst.as_u32 = dst.as_u32;
+  k.frag_id = frag_id;
+  k.proto = proto;
+
+  clib_spinlock_lock_if_init (&srm->ip4_reass_lock);
+  reass = nat_ip4_reass_lookup (&k, now);
+  clib_spinlock_unlock_if_init (&srm->ip4_reass_lock);
+
+  return reass;
+}
+
 nat_reass_ip4_t *
 nat_ip4_reass_find_or_create (ip4_address_t src, ip4_address_t dst,
                              u16 frag_id, u8 proto, u8 reset_timeout,
@@ -282,6 +304,7 @@ nat_ip4_reass_find_or_create (ip4_address_t src, ip4_address_t dst,
   reass->key.as_u64[1] = kv.key[1] = k.as_u64[1];
   kv.value = reass - srm->ip4_reass_pool;
   reass->sess_index = (u32) ~ 0;
+  reass->thread_index = (u32) ~ 0;
   reass->last_heard = now;
 
   if (clib_bihash_add_del_16_8 (&srm->ip4_reass_hash, &kv, 1))
@@ -303,7 +326,11 @@ nat_ip4_reass_add_fragment (nat_reass_ip4_t * reass, u32 bi)
   u32 elt_index;
 
   if (reass->frag_n >= srm->ip4_max_frag)
-    return -1;
+    {
+      nat_ipfix_logging_max_fragments_ip4 (srm->ip4_max_frag,
+                                          &reass->key.src);
+      return -1;
+    }
 
   clib_spinlock_lock_if_init (&srm->ip4_reass_lock);
 
@@ -495,7 +522,11 @@ nat_ip6_reass_add_fragment (nat_reass_ip6_t * reass, u32 bi)
   u32 elt_index;
 
   if (reass->frag_n >= srm->ip6_max_frag)
-    return -1;
+    {
+      nat_ipfix_logging_max_fragments_ip6 (srm->ip6_max_frag,
+                                          &reass->key.src);
+      return -1;
+    }
 
   clib_spinlock_lock_if_init (&srm->ip6_reass_lock);
 
@@ -696,7 +727,7 @@ show_nat_reass_command_fn (vlib_main_t * vm, unformat_input_t * input,
 {
   vlib_cli_output (vm, "NAT IPv4 virtual fragmentation reassembly is %s",
                   nat_reass_is_drop_frag (0) ? "DISABLED" : "ENABLED");
-  vlib_cli_output (vm, " max-reasssemblies %u", nat_reass_get_max_reass (0));
+  vlib_cli_output (vm, " max-reassemblies %u", nat_reass_get_max_reass (0));
   vlib_cli_output (vm, " max-fragments %u", nat_reass_get_max_frag (0));
   vlib_cli_output (vm, " timeout %usec", nat_reass_get_timeout (0));
   vlib_cli_output (vm, " reassemblies:");
@@ -704,7 +735,7 @@ show_nat_reass_command_fn (vlib_main_t * vm, unformat_input_t * input,
 
   vlib_cli_output (vm, "NAT IPv6 virtual fragmentation reassembly is %s",
                   nat_reass_is_drop_frag (1) ? "DISABLED" : "ENABLED");
-  vlib_cli_output (vm, " max-reasssemblies %u", nat_reass_get_max_reass (1));
+  vlib_cli_output (vm, " max-reassemblies %u", nat_reass_get_max_reass (1));
   vlib_cli_output (vm, " max-fragments %u", nat_reass_get_max_frag (1));
   vlib_cli_output (vm, " timeout %usec", nat_reass_get_timeout (1));
   vlib_cli_output (vm, " reassemblies:");