NAT: Rename snat plugin to nat (VPP-955)

Change-Id: I30a7e3da7a4efc6038a91e27b48045d4b07e2764
Signed-off-by: Matus Fabian <matfabia@cisco.com>

1 files changed, 0 insertions, 196 deletions

diff --git a/src/plugins/snat/snat_det.h b/src/plugins/snat/snat_det.h
deleted file mode 100644
index f4fdb256637..00000000000
--- a/src/plugins/snat/snat_det.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * snat_det.h - deterministic nat definitions
- *
- * Copyright (c) 2017 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/**
- * @file
- * @brief deterministic NAT definitions
- */
-
-#ifndef __included_snat_det_h__
-#define __included_snat_det_h__
-
-#include <vnet/ip/ip.h>
-#include <snat/snat.h>
-#include <snat/snat_ipfix_logging.h>
-
-
-#define SNAT_DET_SES_PER_USER 1000
-
-
-int snat_det_add_map (snat_main_t * sm, ip4_address_t * in_addr, u8 in_plen,
-		      ip4_address_t * out_addr, u8 out_plen, int is_add);
-
-always_inline int
-is_addr_in_net (ip4_address_t * addr, ip4_address_t * net, u8 plen)
-{
-  if (net->as_u32 == (addr->as_u32 & ip4_main.fib_masks[plen]))
-    return 1;
-  return 0;
-}
-
-always_inline snat_det_map_t *
-snat_det_map_by_user (snat_main_t * sm, ip4_address_t * user_addr)
-{
-  snat_det_map_t *dm;
-
-  /* *INDENT-OFF* */
-  pool_foreach (dm, sm->det_maps,
-  ({
-    if (is_addr_in_net(user_addr, &dm->in_addr, dm->in_plen))
-      return dm;
-  }));
-  /* *INDENT-ON* */
-  return 0;
-}
-
-always_inline snat_det_map_t *
-snat_det_map_by_out (snat_main_t * sm, ip4_address_t * out_addr)
-{
-  snat_det_map_t *dm;
-
-  /* *INDENT-OFF* */
-  pool_foreach (dm, sm->det_maps,
-  ({
-    if (is_addr_in_net(out_addr, &dm->out_addr, dm->out_plen))
-      return dm;
-  }));
-  /* *INDENT-ON* */
-  return 0;
-}
-
-always_inline void
-snat_det_forward (snat_det_map_t * dm, ip4_address_t * in_addr,
-		  ip4_address_t * out_addr, u16 * lo_port)
-{
-  u32 in_offset, out_offset;
-
-  in_offset = clib_net_to_host_u32 (in_addr->as_u32) -
-    clib_net_to_host_u32 (dm->in_addr.as_u32);
-  out_offset = in_offset / dm->sharing_ratio;
-  out_addr->as_u32 =
-    clib_host_to_net_u32 (clib_net_to_host_u32 (dm->out_addr.as_u32) +
-			  out_offset);
-  *lo_port = 1024 + dm->ports_per_host * (in_offset % dm->sharing_ratio);
-}
-
-always_inline void
-snat_det_reverse (snat_det_map_t * dm, ip4_address_t * out_addr, u16 out_port,
-		  ip4_address_t * in_addr)
-{
-  u32 in_offset1, in_offset2, out_offset;
-
-  out_offset = clib_net_to_host_u32 (out_addr->as_u32) -
-    clib_net_to_host_u32 (dm->out_addr.as_u32);
-  in_offset1 = out_offset * dm->sharing_ratio;
-  in_offset2 = (out_port - 1024) / dm->ports_per_host;
-  in_addr->as_u32 =
-    clib_host_to_net_u32 (clib_net_to_host_u32 (dm->in_addr.as_u32) +
-			  in_offset1 + in_offset2);
-}
-
-always_inline u32
-snat_det_user_ses_offset (ip4_address_t * addr, u8 plen)
-{
-  return (clib_net_to_host_u32 (addr->as_u32) & pow2_mask (32 - plen)) *
-    SNAT_DET_SES_PER_USER;
-}
-
-always_inline snat_det_session_t *
-snat_det_get_ses_by_out (snat_det_map_t * dm, ip4_address_t * in_addr,
-			 u64 out_key)
-{
-  u32 user_offset;
-  u16 i;
-
-  user_offset = snat_det_user_ses_offset (in_addr, dm->in_plen);
-  for (i = 0; i < SNAT_DET_SES_PER_USER; i++)
-    {
-      if (dm->sessions[i + user_offset].out.as_u64 == out_key)
-	return &dm->sessions[i + user_offset];
-    }
-
-  return 0;
-}
-
-always_inline snat_det_session_t *
-snat_det_find_ses_by_in (snat_det_map_t * dm, ip4_address_t * in_addr,
-			 u16 in_port, snat_det_out_key_t out_key)
-{
-  snat_det_session_t *ses;
-  u32 user_offset;
-  u16 i;
-
-  user_offset = snat_det_user_ses_offset (in_addr, dm->in_plen);
-  for (i = 0; i < SNAT_DET_SES_PER_USER; i++)
-    {
-      ses = &dm->sessions[i + user_offset];
-      if (ses->in_port == in_port &&
-	  ses->out.ext_host_addr.as_u32 == out_key.ext_host_addr.as_u32 &&
-	  ses->out.ext_host_port == out_key.ext_host_port)
-	return &dm->sessions[i + user_offset];
-    }
-
-  return 0;
-}
-
-always_inline snat_det_session_t *
-snat_det_ses_create (snat_det_map_t * dm, ip4_address_t * in_addr,
-		     u16 in_port, snat_det_out_key_t * out)
-{
-  u32 user_offset;
-  u16 i;
-
-  user_offset = snat_det_user_ses_offset (in_addr, dm->in_plen);
-
-  for (i = 0; i < SNAT_DET_SES_PER_USER; i++)
-    {
-      if (!dm->sessions[i + user_offset].in_port)
-	{
-	  if (__sync_bool_compare_and_swap
-	      (&dm->sessions[i + user_offset].in_port, 0, in_port))
-	    {
-	      dm->sessions[i + user_offset].out.as_u64 = out->as_u64;
-	      dm->sessions[i + user_offset].state = SNAT_SESSION_UNKNOWN;
-	      dm->sessions[i + user_offset].expire = 0;
-	      __sync_add_and_fetch (&dm->ses_num, 1);
-	      return &dm->sessions[i + user_offset];
-	    }
-	}
-    }
-
-  snat_ipfix_logging_max_entries_per_user (in_addr->as_u32);
-  return 0;
-}
-
-always_inline void
-snat_det_ses_close (snat_det_map_t * dm, snat_det_session_t * ses)
-{
-  if (__sync_bool_compare_and_swap (&ses->in_port, ses->in_port, 0))
-    {
-      ses->out.as_u64 = 0;
-      __sync_add_and_fetch (&dm->ses_num, -1);
-    }
-}
-
-#endif /* __included_snat_det_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */