ipsec: ipsec-tun protect

please consult the new tunnel proposal at:
  https://wiki.fd.io/view/VPP/IPSec

Type: feature

Change-Id: I52857fc92ae068b85f59be08bdbea1bd5932e291
Signed-off-by: Neale Ranns <nranns@cisco.com>

9 files changed, 0 insertions, 1622 deletions

diff --git a/src/vnet/ipsec-gre/dir.dox b/src/vnet/ipsec-gre/dir.dox
deleted file mode 100644
index e6ffd10b01b..00000000000
--- a/src/vnet/ipsec-gre/dir.dox
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2016 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.
- */
-/**
- @dir vnet/vnet/ipsec-gre
- @brief L2-GRE over IPSec tunnel interface implementation
-*/
diff --git a/src/vnet/ipsec-gre/error.def b/src/vnet/ipsec-gre/error.def
deleted file mode 100644
index d84e8ed1759..00000000000
--- a/src/vnet/ipsec-gre/error.def
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (c) 2016 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 L2-GRE over IPSec errors.
- */
-
-
-ipsec_gre_error (NONE, "no error")
-ipsec_gre_error (UNKNOWN_PROTOCOL, "unknown protocol")
-ipsec_gre_error (UNSUPPORTED_VERSION, "unsupported version")
-ipsec_gre_error (PKTS_DECAP, "GRE input packets decapsulated")
-ipsec_gre_error (PKTS_ENCAP, "GRE output packets encapsulated")
-ipsec_gre_error (NO_SUCH_TUNNEL, "GRE input packets dropped due to missing tunnel")
diff --git a/src/vnet/ipsec-gre/interface.c b/src/vnet/ipsec-gre/interface.c
deleted file mode 100644
index 6a8bb7d8f0b..00000000000
--- a/src/vnet/ipsec-gre/interface.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * gre_interface.c: gre interfaces
- *
- * Copyright (c) 2016 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 L2-GRE over IPSec tunnel interface.
- *
- * Creates ipsec-gre tunnel interface.
- * Provides a command line interface so humans can interact with VPP.
- */
-
-#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
-#include <vnet/ipsec-gre/ipsec_gre.h>
-#include <vnet/ip/format.h>
-#include <vnet/ipsec/ipsec.h>
-#include <vnet/l2/l2_input.h>
-
-#include <vnet/ipsec/esp.h>
-
-u8 *
-format_ipsec_gre_tunnel (u8 * s, va_list * args)
-{
-  ipsec_gre_tunnel_t *t = va_arg (*args, ipsec_gre_tunnel_t *);
-  ipsec_gre_main_t *gm = &ipsec_gre_main;
-
-  s = format (s,
-	      "[%d] %U (src) %U (dst) local-sa %d remote-sa %d",
-	      t - gm->tunnels,
-	      format_ip4_address, &t->tunnel_src,
-	      format_ip4_address, &t->tunnel_dst,
-	      t->local_sa_id, t->remote_sa_id);
-  return s;
-}
-
-static clib_error_t *
-show_ipsec_gre_tunnel_command_fn (vlib_main_t * vm,
-				  unformat_input_t * input,
-				  vlib_cli_command_t * cmd)
-{
-  ipsec_gre_main_t *igm = &ipsec_gre_main;
-  ipsec_gre_tunnel_t *t;
-
-  if (pool_elts (igm->tunnels) == 0)
-    vlib_cli_output (vm, "No IPSec GRE tunnels configured...");
-
-  /* *INDENT-OFF* */
-  pool_foreach (t, igm->tunnels,
-  ({
-    vlib_cli_output (vm, "%U", format_ipsec_gre_tunnel, t);
-  }));
-  /* *INDENT-ON* */
-
-  return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (show_ipsec_gre_tunnel_command, static) = {
-    .path = "show ipsec gre tunnel",
-    .function = show_ipsec_gre_tunnel_command_fn,
-};
-/* *INDENT-ON* */
-
-/* force inclusion from application's main.c */
-clib_error_t *
-ipsec_gre_interface_init (vlib_main_t * vm)
-{
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (ipsec_gre_interface_init);
-
-/**
- * @brief Add or delete ipsec-gre tunnel interface.
- *
- * @param *a vnet_ipsec_gre_tunnel_add_del_args_t - tunnel interface parameters
- * @param *sw_if_indexp u32 - software interface index
- * @return int - 0 if success otherwise <code>VNET_API_ERROR_</code>
- */
-int
-vnet_ipsec_gre_tunnel_add_del (const ipsec_gre_tunnel_add_del_args_t * a,
-			       u32 * sw_if_indexp)
-{
-  ipsec_gre_main_t *igm = &ipsec_gre_main;
-  vnet_main_t *vnm = igm->vnet_main;
-  ipsec_main_t *im = &ipsec_main;
-  ipsec_gre_tunnel_t *t;
-  vnet_hw_interface_t *hi;
-  u32 hw_if_index, sw_if_index;
-  u32 slot;
-  uword *p;
-  u64 key;
-
-  key = (u64) a->src.as_u32 << 32 | (u64) a->dst.as_u32;
-  p = hash_get (igm->tunnel_by_key, key);
-
-  if (a->is_add)
-    {
-      /* check if same src/dst pair exists */
-      if (p)
-	return VNET_API_ERROR_INVALID_VALUE;
-
-      pool_get_aligned (igm->tunnels, t, CLIB_CACHE_LINE_BYTES);
-      clib_memset (t, 0, sizeof (*t));
-
-      if (vec_len (igm->free_ipsec_gre_tunnel_hw_if_indices) > 0)
-	{
-	  vnet_interface_main_t *im = &vnm->interface_main;
-
-	  hw_if_index = igm->free_ipsec_gre_tunnel_hw_if_indices
-	    [vec_len (igm->free_ipsec_gre_tunnel_hw_if_indices) - 1];
-	  _vec_len (igm->free_ipsec_gre_tunnel_hw_if_indices) -= 1;
-
-	  hi = vnet_get_hw_interface (vnm, hw_if_index);
-	  hi->dev_instance = t - igm->tunnels;
-	  hi->hw_instance = hi->dev_instance;
-
-	  /* clear old stats of freed tunnel before reuse */
-	  sw_if_index = hi->sw_if_index;
-	  vnet_interface_counter_lock (im);
-	  vlib_zero_combined_counter
-	    (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_TX],
-	     sw_if_index);
-	  vlib_zero_combined_counter
-	    (&im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_RX],
-	     sw_if_index);
-	  vlib_zero_simple_counter
-	    (&im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP], sw_if_index);
-	  vnet_interface_counter_unlock (im);
-	}
-      else
-	{
-	  hw_if_index = vnet_register_interface
-	    (vnm, ipsec_gre_device_class.index, t - igm->tunnels,
-	     ipsec_gre_hw_interface_class.index, t - igm->tunnels);
-	  hi = vnet_get_hw_interface (vnm, hw_if_index);
-	  sw_if_index = hi->sw_if_index;
-	}
-
-      t->hw_if_index = hw_if_index;
-      t->sw_if_index = sw_if_index;
-      t->local_sa_id = a->local_sa_id;
-      t->remote_sa_id = a->remote_sa_id;
-      t->local_sa = ipsec_get_sa_index_by_sa_id (t->local_sa_id);
-      t->remote_sa = ipsec_get_sa_index_by_sa_id (t->remote_sa_id);
-
-      ip4_sw_interface_enable_disable (sw_if_index, 1);
-
-      vec_validate_init_empty (igm->tunnel_index_by_sw_if_index,
-			       sw_if_index, ~0);
-      igm->tunnel_index_by_sw_if_index[sw_if_index] = t - igm->tunnels;
-
-      hi->min_packet_bytes = 64 + sizeof (gre_header_t) +
-	sizeof (ip4_header_t) + sizeof (esp_header_t) + sizeof (esp_footer_t);
-
-      /* Standard default gre MTU. */
-      /* TODO: Should take tunnel overhead into consideration */
-      vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000);
-
-      clib_memcpy (&t->tunnel_src, &a->src, sizeof (t->tunnel_src));
-      clib_memcpy (&t->tunnel_dst, &a->dst, sizeof (t->tunnel_dst));
-
-      hash_set (igm->tunnel_by_key, key, t - igm->tunnels);
-
-      slot = vlib_node_add_next_with_slot
-	(vnm->vlib_main, hi->tx_node_index, im->esp4_encrypt_node_index,
-	 IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT);
-
-      ASSERT (slot == IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT);
-    }
-  else
-    {				/* !is_add => delete */
-      /* tunnel needs to exist */
-      if (!p)
-	return VNET_API_ERROR_NO_SUCH_ENTRY;
-
-      t = pool_elt_at_index (igm->tunnels, p[0]);
-
-      sw_if_index = t->sw_if_index;
-      ip4_sw_interface_enable_disable (sw_if_index, 0);
-      vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
-      /* make sure tunnel is removed from l2 bd or xconnect */
-      set_int_l2_mode (igm->vlib_main, vnm, MODE_L3, sw_if_index, 0,
-		       L2_BD_PORT_TYPE_NORMAL, 0, 0);
-      vec_add1 (igm->free_ipsec_gre_tunnel_hw_if_indices, t->hw_if_index);
-      igm->tunnel_index_by_sw_if_index[sw_if_index] = ~0;
-
-      hash_unset (igm->tunnel_by_key, key);
-      pool_put (igm->tunnels, t);
-    }
-
-  if (sw_if_indexp)
-    *sw_if_indexp = sw_if_index;
-
-  return ipsec_add_del_ipsec_gre_tunnel (vnm, a);
-}
-
-static clib_error_t *
-create_ipsec_gre_tunnel_command_fn (vlib_main_t * vm,
-				    unformat_input_t * input,
-				    vlib_cli_command_t * cmd)
-{
-  unformat_input_t _line_input, *line_input = &_line_input;
-  u32 num_m_args = 0;
-  ipsec_gre_tunnel_add_del_args_t _a, *a = &_a;
-  int rv;
-  u32 sw_if_index;
-  clib_error_t *error = NULL;
-
-  clib_memset (a, 0, sizeof (*a));
-  a->is_add = 1;
-
-  /* Get a line of input. */
-  if (!unformat_user (input, unformat_line_input, line_input))
-    return 0;
-
-  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
-    {
-      if (unformat (line_input, "del"))
-	a->is_add = 0;
-      else if (unformat (line_input, "src %U", unformat_ip4_address, &a->src))
-	num_m_args++;
-      else if (unformat (line_input, "dst %U", unformat_ip4_address, &a->dst))
-	num_m_args++;
-      else if (unformat (line_input, "local-sa %d", &a->local_sa_id))
-	num_m_args++;
-      else if (unformat (line_input, "remote-sa %d", &a->remote_sa_id))
-	num_m_args++;
-      else
-	{
-	  error = clib_error_return (0, "unknown input `%U'",
-				     format_unformat_error, line_input);
-	  goto done;
-	}
-    }
-
-  if (num_m_args < 4)
-    {
-      error = clib_error_return (0, "mandatory argument(s) missing");
-      goto done;
-    }
-
-  if (memcmp (&a->src, &a->dst, sizeof (a->src)) == 0)
-    {
-      error = clib_error_return (0, "src and dst are identical");
-      goto done;
-    }
-
-  rv = vnet_ipsec_gre_tunnel_add_del (a, &sw_if_index);
-
-  switch (rv)
-    {
-    case 0:
-      vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name,
-		       vnet_get_main (), sw_if_index);
-      break;
-    case VNET_API_ERROR_INVALID_VALUE:
-      error = clib_error_return (0, "GRE tunnel already exists...");
-      goto done;
-    default:
-      error = clib_error_return (0,
-				 "vnet_ipsec_gre_tunnel_add_del returned %d",
-				 rv);
-      goto done;
-    }
-
-done:
-  unformat_free (line_input);
-
-  return error;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (create_ipsec_gre_tunnel_command, static) = {
-  .path = "create ipsec gre tunnel",
-  .short_help = "create ipsec gre tunnel src <addr> dst <addr> "
-                "local-sa <id> remote-sa <id> [del]",
-  .function = create_ipsec_gre_tunnel_command_fn,
-};
-/* *INDENT-ON* */
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
diff --git a/src/vnet/ipsec-gre/ipsec_gre.api b/src/vnet/ipsec-gre/ipsec_gre.api
deleted file mode 100644
index b4950097f61..00000000000
--- a/src/vnet/ipsec-gre/ipsec_gre.api
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright (c) 2015-2016 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.
- */
-
-option version = "1.1.0";
-
-import "vnet/ip/ip_types.api";
-
-/** \brief Add / del ipsec gre tunnel request
-    @param client_index - opaque cookie to identify the sender
-    @param context - sender context, to match reply w/ request
-    @param local_sa_id - local/output SA id
-    @param remote_sa_id - remote/input SA id
-    @param is_add - 1 if adding the tunnel, 0 if deleting
-    @param sw_if_index - software index of the ipsec gre tunnel
-                         ignored on create. set in dump/details
-    @param src - tunnel source address
-    @param dst - tunnel destination address
-*/
-typedef ipsec_gre_tunnel {
-    u32 client_index;
-    u32 context;
-    u32 local_sa_id;
-    u32 remote_sa_id;
-    u8 is_add;
-    u32 sw_if_index;
-    vl_api_ip4_address_t src;
-    vl_api_ip4_address_t dst;
-};
-
-define ipsec_gre_tunnel_add_del {
-    u32 client_index;
-    u32 context;
-    u8 is_add;
-    vl_api_ipsec_gre_tunnel_t tunnel;
-};
-
-/** \brief Reply for add / del ipsec gre tunnel request
-    @param context - returned sender context, to match reply w/ request
-    @param retval - return code
-    @param sw_if_index - software index of the new ipsec gre tunnel
-*/
-define ipsec_gre_tunnel_add_del_reply {
-    u32 context;
-    i32 retval;
-    u32 sw_if_index;
-};
-
-/** \brief Dump ipsec gre tunnel table
-    @param client_index - opaque cookie to identify the sender
-    @param context - sender context, to match reply w/ request
-    @param tunnel_index - gre tunnel identifier or -1 in case of all tunnels
-*/
-define ipsec_gre_tunnel_dump {
-    u32 client_index;
-    u32 context;
-    u32 sw_if_index;
-};
-
-/** \brief ipsec gre tunnel operational state response
-    @param context - returned sender context, to match reply w/ request
-    @param local_sa_id - local SA id
-    @param remote_sa_id - remote SA id
-    @param src_address - tunnel source address
-    @param dst_address - tunnel destination address
-*/
-define ipsec_gre_tunnel_details {
-    u32 context;
-    vl_api_ipsec_gre_tunnel_t tunnel;
-};
-
-/*
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
- 
diff --git a/src/vnet/ipsec-gre/ipsec_gre.c b/src/vnet/ipsec-gre/ipsec_gre.c
deleted file mode 100644
index cdb23dd9deb..00000000000
--- a/src/vnet/ipsec-gre/ipsec_gre.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * Copyright (c) 2016 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 L2-GRE over IPSec packet processing.
- *
- * Add GRE header to thr packet and send it to the esp-encrypt node.
-*/
-
-#include <vnet/vnet.h>
-#include <vnet/ipsec-gre/ipsec_gre.h>
-
-extern ipsec_gre_main_t ipsec_gre_main;
-
-#ifndef CLIB_MARCH_VARIANT
-ipsec_gre_main_t ipsec_gre_main;
-#endif /* CLIB_MARCH_VARIANT */
-
-/**
- * @brief IPv4 and GRE header union.
- *
-*/
-typedef struct
-{
-  union
-  {
-    ip4_and_gre_header_t ip4_and_gre;
-    u64 as_u64[3];
-  };
-} ip4_and_gre_union_t;
-
-/**
- * @brief Packet trace.
- *
-*/
-typedef struct
-{
-  u32 tunnel_id; /**< Tunnel-id / index in tunnel vector */
-
-  u32 length; /**< pkt length */
-
-  ip4_address_t src; /**< tunnel src IPv4 address */
-  ip4_address_t dst; /**< tunnel dst IPv4 address */
-
-  u32 sa_id; /**< tunnel IPSec SA id */
-} ipsec_gre_tx_trace_t;
-
-static u8 *
-format_ipsec_gre_tx_trace (u8 * s, va_list * args)
-{
-  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
-  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
-  ipsec_gre_tx_trace_t *t = va_arg (*args, ipsec_gre_tx_trace_t *);
-
-  s = format (s, "GRE: tunnel %d len %d src %U dst %U sa-id %d",
-	      t->tunnel_id, clib_net_to_host_u16 (t->length),
-	      format_ip4_address, &t->src.as_u8,
-	      format_ip4_address, &t->dst.as_u8, t->sa_id);
-  return s;
-}
-
-/**
- * @brief IPSec-GRE tunnel interface tx function.
- *
- * Add GRE header to the packet.
- *
- * @param vm vlib_main_t corresponding to the current thread.
- * @param node vlib_node_runtime_t data for this node.
- * @param frame vlib_frame_t whose contents should be dispatched.
- *
- * @par Graph mechanics: buffer metadata, next index usage
- *
- * <em>Uses:</em>
- * - <code>node->runtime_data</code>
- *     - Match tunnel by <code>rd->dev_instance</code> in IPSec-GRE tunnels
- *       pool.
- *
- * <em>Sets:</em>
- * - <code>vnet_buffer(b)->output_features.ipsec_sad_index</code>
- *     - Set IPSec Security Association for packet encryption.
- * - <code>vnet_buffer(b)->sw_if_index[VLIB_TX]</code>
- *     - Reset output sw_if_index.
- *
- * <em>Next Index:</em>
- * - Dispatches the packet to the esp-encrypt node.
-*/
-VNET_DEVICE_CLASS_TX_FN (ipsec_gre_device_class) (vlib_main_t * vm,
-						  vlib_node_runtime_t * node,
-						  vlib_frame_t * frame)
-{
-  ipsec_gre_main_t *igm = &ipsec_gre_main;
-  u32 next_index;
-  u32 *from, *to_next, n_left_from, n_left_to_next;
-  vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
-  ipsec_gre_tunnel_t *t = pool_elt_at_index (igm->tunnels, rd->dev_instance);
-
-  u16 l2_gre_protocol_ethertype = clib_net_to_host_u16 (GRE_PROTOCOL_teb);
-
-  /* Vector of buffer / pkt indices we're supposed to process */
-  from = vlib_frame_vector_args (frame);
-
-  /* Number of buffers / pkts */
-  n_left_from = frame->n_vectors;
-
-  /* Speculatively send the first buffer to the last disposition we used */
-  next_index = node->cached_next_index;
-
-  while (n_left_from > 0)
-    {
-      /* set up to enqueue to our disposition with index = next_index */
-      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
-      /*
-       * As long as we have enough pkts left to process two pkts
-       * and prefetch two pkts...
-       */
-      while (n_left_from >= 4 && n_left_to_next >= 2)
-	{
-	  vlib_buffer_t *b0, *b1;
-	  ip4_header_t *ip0, *ip1;
-	  ip4_and_gre_union_t *h0, *h1;
-	  u32 bi0, next0, bi1, next1;
-	  __attribute__ ((unused)) u8 error0, error1;
-
-	  /* Prefetch the next iteration */
-	  {
-	    vlib_buffer_t *p2, *p3;
-
-	    p2 = vlib_get_buffer (vm, from[2]);
-	    p3 = vlib_get_buffer (vm, from[3]);
-
-	    vlib_prefetch_buffer_header (p2, LOAD);
-	    vlib_prefetch_buffer_header (p3, LOAD);
-
-	    /*
-	     * Prefetch packet data. We expect to overwrite
-	     * the inbound L2 header with an ip header and a
-	     * gre header. Might want to prefetch the last line
-	     * of rewrite space as well; need profile data
-	     */
-	    CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
-	    CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
-	  }
-
-	  /* Pick up the next two buffer indices */
-	  bi0 = from[0];
-	  bi1 = from[1];
-
-	  /* Speculatively enqueue them where we sent the last buffer */
-	  to_next[0] = bi0;
-	  to_next[1] = bi1;
-	  from += 2;
-	  to_next += 2;
-	  n_left_to_next -= 2;
-	  n_left_from -= 2;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-	  b1 = vlib_get_buffer (vm, bi1);
-
-	  vlib_buffer_advance (b0, -sizeof (*h0));
-	  vlib_buffer_advance (b1, -sizeof (*h1));
-
-	  h0 = vlib_buffer_get_current (b0);
-	  h1 = vlib_buffer_get_current (b1);
-	  h0->as_u64[0] = 0;
-	  h0->as_u64[1] = 0;
-	  h0->as_u64[2] = 0;
-
-	  h1->as_u64[0] = 0;
-	  h1->as_u64[1] = 0;
-	  h1->as_u64[2] = 0;
-
-	  ip0 = &h0->ip4_and_gre.ip4;
-	  h0->ip4_and_gre.gre.protocol = l2_gre_protocol_ethertype;
-	  ip0->ip_version_and_header_length = 0x45;
-	  ip0->ttl = 254;
-	  ip0->protocol = IP_PROTOCOL_GRE;
-
-	  ip1 = &h1->ip4_and_gre.ip4;
-	  h1->ip4_and_gre.gre.protocol = l2_gre_protocol_ethertype;
-	  ip1->ip_version_and_header_length = 0x45;
-	  ip1->ttl = 254;
-	  ip1->protocol = IP_PROTOCOL_GRE;
-
-	  ip0->length =
-	    clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
-	  ip1->length =
-	    clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1));
-	  ip0->src_address.as_u32 = t->tunnel_src.as_u32;
-	  ip1->src_address.as_u32 = t->tunnel_src.as_u32;
-	  ip0->dst_address.as_u32 = t->tunnel_dst.as_u32;
-	  ip1->dst_address.as_u32 = t->tunnel_dst.as_u32;
-	  ip0->checksum = ip4_header_checksum (ip0);
-	  ip1->checksum = ip4_header_checksum (ip1);
-
-	  vnet_buffer (b0)->sw_if_index[VLIB_RX] =
-	    vnet_buffer (b0)->sw_if_index[VLIB_TX];
-	  vnet_buffer (b1)->sw_if_index[VLIB_RX] =
-	    vnet_buffer (b1)->sw_if_index[VLIB_TX];
-
-	  vnet_buffer (b0)->ipsec.sad_index = t->local_sa;
-	  vnet_buffer (b1)->ipsec.sad_index = t->local_sa;
-
-	  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-	  vnet_buffer (b1)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-
-	  next0 = IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT;
-	  next1 = IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT;
-	  error0 = IPSEC_GRE_ERROR_NONE;
-	  error1 = IPSEC_GRE_ERROR_NONE;
-
-	  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
-	    {
-	      ipsec_gre_tx_trace_t *tr = vlib_add_trace (vm, node,
-							 b0, sizeof (*tr));
-	      tr->tunnel_id = t - igm->tunnels;
-	      tr->length = ip0->length;
-	      tr->src.as_u32 = ip0->src_address.as_u32;
-	      tr->dst.as_u32 = ip0->dst_address.as_u32;
-	      tr->sa_id = t->local_sa_id;
-	    }
-
-	  if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
-	    {
-	      ipsec_gre_tx_trace_t *tr = vlib_add_trace (vm, node,
-							 b1, sizeof (*tr));
-	      tr->tunnel_id = t - igm->tunnels;
-	      tr->length = ip1->length;
-	      tr->src.as_u32 = ip1->src_address.as_u32;
-	      tr->dst.as_u32 = ip1->dst_address.as_u32;
-	      tr->sa_id = t->local_sa_id;
-	    }
-
-	  vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
-					   to_next, n_left_to_next,
-					   bi0, bi1, next0, next1);
-	}
-
-      while (n_left_from > 0 && n_left_to_next > 0)
-	{
-	  vlib_buffer_t *b0;
-	  ip4_header_t *ip0;
-	  ip4_and_gre_union_t *h0;
-	  u32 bi0, next0;
-	  __attribute__ ((unused)) u8 error0;
-
-	  bi0 = to_next[0] = from[0];
-	  from += 1;
-	  n_left_from -= 1;
-	  to_next += 1;
-	  n_left_to_next -= 1;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-
-	  vlib_buffer_advance (b0, -sizeof (*h0));
-
-	  h0 = vlib_buffer_get_current (b0);
-	  h0->as_u64[0] = 0;
-	  h0->as_u64[1] = 0;
-	  h0->as_u64[2] = 0;
-
-	  ip0 = &h0->ip4_and_gre.ip4;
-	  h0->ip4_and_gre.gre.protocol = l2_gre_protocol_ethertype;
-	  ip0->ip_version_and_header_length = 0x45;
-	  ip0->ttl = 254;
-	  ip0->protocol = IP_PROTOCOL_GRE;
-	  ip0->length =
-	    clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
-	  ip0->src_address.as_u32 = t->tunnel_src.as_u32;
-	  ip0->dst_address.as_u32 = t->tunnel_dst.as_u32;
-	  ip0->checksum = ip4_header_checksum (ip0);
-
-	  vnet_buffer (b0)->sw_if_index[VLIB_RX] =
-	    vnet_buffer (b0)->sw_if_index[VLIB_TX];
-	  vnet_buffer (b0)->ipsec.sad_index = t->local_sa;
-	  vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0;
-
-	  next0 = IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT;
-	  error0 = IPSEC_GRE_ERROR_NONE;
-
-	  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
-	    {
-	      ipsec_gre_tx_trace_t *tr = vlib_add_trace (vm, node,
-							 b0, sizeof (*tr));
-	      tr->tunnel_id = t - igm->tunnels;
-	      tr->length = ip0->length;
-	      tr->src.as_u32 = ip0->src_address.as_u32;
-	      tr->dst.as_u32 = ip0->dst_address.as_u32;
-	      tr->sa_id = t->local_sa_id;
-	    }
-
-	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
-					   to_next, n_left_to_next,
-					   bi0, next0);
-	}
-
-      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-    }
-
-  vlib_node_increment_counter (vm, ipsec_gre_input_node.index,
-			       IPSEC_GRE_ERROR_PKTS_ENCAP, frame->n_vectors);
-
-  return frame->n_vectors;
-}
-
-static clib_error_t *
-ipsec_gre_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index,
-				   u32 flags)
-{
-  if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
-    vnet_hw_interface_set_flags (vnm, hw_if_index,
-				 VNET_HW_INTERFACE_FLAG_LINK_UP);
-  else
-    vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */ );
-
-  return /* no error */ 0;
-}
-
-static u8 *
-format_ipsec_gre_tunnel_name (u8 * s, va_list * args)
-{
-  u32 dev_instance = va_arg (*args, u32);
-  return format (s, "ipsec-gre%d", dev_instance);
-}
-
-static u8 *
-format_ipsec_gre_device (u8 * s, va_list * args)
-{
-  u32 dev_instance = va_arg (*args, u32);
-  CLIB_UNUSED (int verbose) = va_arg (*args, int);
-
-  s = format (s, "IPSEC-GRE tunnel: id %d\n", dev_instance);
-  return s;
-}
-
-/* *INDENT-OFF* */
-VNET_DEVICE_CLASS (ipsec_gre_device_class) = {
-  .name = "IPSec GRE tunnel device",
-  .format_device_name = format_ipsec_gre_tunnel_name,
-  .format_device = format_ipsec_gre_device,
-  .format_tx_trace = format_ipsec_gre_tx_trace,
-  .admin_up_down_function = ipsec_gre_interface_admin_up_down,
-};
-
-
-#ifndef CLIB_MARCH_VARIANT
-VNET_HW_INTERFACE_CLASS (ipsec_gre_hw_interface_class) = {
-  .name = "IPSEC-GRE",
-};
-#endif /* CLIB_MARCH_VARIANT */
-/* *INDENT-ON* */
-
-static clib_error_t *
-ipsec_gre_init (vlib_main_t * vm)
-{
-  ipsec_gre_main_t *igm = &ipsec_gre_main;
-  clib_error_t *error;
-
-  clib_memset (igm, 0, sizeof (igm[0]));
-  igm->vlib_main = vm;
-  igm->vnet_main = vnet_get_main ();
-
-  if ((error = vlib_call_init_function (vm, ip_main_init)))
-    return error;
-
-  if ((error = vlib_call_init_function (vm, ip4_lookup_init)))
-    return error;
-
-  igm->tunnel_by_key = hash_create (0, sizeof (uword));
-
-  return vlib_call_init_function (vm, ipsec_gre_input_init);
-}
-
-VLIB_INIT_FUNCTION (ipsec_gre_init);
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
diff --git a/src/vnet/ipsec-gre/ipsec_gre.h b/src/vnet/ipsec-gre/ipsec_gre.h
deleted file mode 100644
index 730cd717795..00000000000
--- a/src/vnet/ipsec-gre/ipsec_gre.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Copyright (c) 2016 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 L2-GRE over IPSec packet processing.
-*/
-
-#ifndef included_ipsec_gre_h
-#define included_ipsec_gre_h
-
-#include <vnet/vnet.h>
-#include <vnet/gre/packet.h>
-#include <vnet/gre/gre.h>
-#include <vnet/ip/ip.h>
-#include <vnet/ip/ip4.h>
-#include <vnet/ip/ip4_packet.h>
-#include <vnet/pg/pg.h>
-#include <vnet/ip/format.h>
-#include <vnet/ipsec/ipsec.h>
-#include <vnet/ipsec/ipsec_if.h>
-
-extern vnet_hw_interface_class_t ipsec_gre_hw_interface_class;
-
-/**
- * @brief IPSec-GRE errors.
- *
-*/
-typedef enum
-{
-#define ipsec_gre_error(n,s) IPSEC_GRE_ERROR_##n,
-#include <vnet/ipsec-gre/error.def>
-#undef ipsec_gre_error
-  IPSEC_GRE_N_ERROR,
-} ipsec_gre_error_t;
-
-/**
- * @brief IPSec-GRE tunnel parameters.
- *
-*/
-typedef struct
-{
-  /* Required for pool_get_aligned */
-  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-  ip4_address_t tunnel_src; /**< tunnel IPv4 src address */
-  ip4_address_t tunnel_dst; /**< tunnel IPv4 dst address */
-  u32 local_sa;		    /**< local IPSec SA index */
-  u32 remote_sa;	    /**< remote IPSec SA index */
-  u32 local_sa_id;	    /**< local IPSec SA id */
-  u32 remote_sa_id;	    /**< remote IPSec SA id */
-  u32 hw_if_index;;	    /**< hardware interface index */
-  u32 sw_if_index;;	    /**< software interface index */
-} ipsec_gre_tunnel_t;
-
-/**
- * @brief IPSec-GRE state.
- *
-*/
-typedef struct
-{
-  ipsec_gre_tunnel_t *tunnels; /**< pool of tunnel instances */
-
-  uword *tunnel_by_key;	 /**< hash mapping src/dst addr pair to tunnel */
-
-  u32 *free_ipsec_gre_tunnel_hw_if_indices;  /**< free vlib hw_if_indices */
-
-  u32 *tunnel_index_by_sw_if_index;  /**< mapping from sw_if_index to tunnel
-                                          index */
-
-  vlib_main_t *vlib_main;  /**< convenience */
-  vnet_main_t *vnet_main;  /**< convenience */
-} ipsec_gre_main_t;
-
-extern ipsec_gre_main_t ipsec_gre_main;
-
-extern vlib_node_registration_t ipsec_gre_input_node;
-extern vnet_device_class_t ipsec_gre_device_class;
-
-/* manually added to the interface output node in ipsec_gre.c */
-#define IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT 0
-
-extern int vnet_ipsec_gre_tunnel_add_del (const
-					  ipsec_gre_tunnel_add_del_args_t * a,
-					  u32 * sw_if_indexp);
-
-#endif /* included_ipsec_gre_h */
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
diff --git a/src/vnet/ipsec-gre/ipsec_gre_api.c b/src/vnet/ipsec-gre/ipsec_gre_api.c
deleted file mode 100644
index 9e5d615f977..00000000000
--- a/src/vnet/ipsec-gre/ipsec_gre_api.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- *------------------------------------------------------------------
- * ipsec_gre_api.c - ipsec_gre api
- *
- * Copyright (c) 2016 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.
- *------------------------------------------------------------------
- */
-
-#include <vnet/vnet.h>
-#include <vlibmemory/api.h>
-
-#include <vnet/interface.h>
-#include <vnet/api_errno.h>
-#include <vnet/ipsec-gre/ipsec_gre.h>
-#include <vnet/ip/ip_types_api.h>
-
-#include <vnet/vnet_msg_enum.h>
-
-#define vl_typedefs		/* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_typedefs
-
-#define vl_endianfun		/* define message structures */
-#include <vnet/vnet_all_api_h.h>
-#undef vl_endianfun
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
-#define vl_printfun
-#include <vnet/vnet_all_api_h.h>
-#undef vl_printfun
-
-#include <vlibapi/api_helper_macros.h>
-
-#define foreach_vpe_api_msg                             \
-_(IPSEC_GRE_TUNNEL_ADD_DEL, ipsec_gre_tunnel_add_del)                   \
-_(IPSEC_GRE_TUNNEL_DUMP, ipsec_gre_tunnel_dump)
-
-static void
-vl_api_ipsec_gre_tunnel_add_del_t_handler (vl_api_ipsec_gre_tunnel_add_del_t *
-					   mp)
-{
-  vl_api_ipsec_gre_tunnel_add_del_reply_t *rmp;
-  int rv = 0;
-  ipsec_gre_tunnel_add_del_args_t _a, *a = &_a;
-  u32 sw_if_index = ~0;
-
-  clib_memset (a, 0, sizeof (*a));
-
-  ip4_address_decode (mp->tunnel.src, &a->src);
-  ip4_address_decode (mp->tunnel.dst, &a->dst);
-
-  /* Check src & dst are different */
-  if (a->src.as_u32 == a->dst.as_u32)
-    {
-      rv = VNET_API_ERROR_SAME_SRC_DST;
-      goto out;
-    }
-
-  a->is_add = mp->is_add;
-  a->local_sa_id = ntohl (mp->tunnel.local_sa_id);
-  a->remote_sa_id = ntohl (mp->tunnel.remote_sa_id);
-
-  rv = vnet_ipsec_gre_tunnel_add_del (a, &sw_if_index);
-
-out:
-  /* *INDENT-OFF* */
-  REPLY_MACRO2(VL_API_IPSEC_GRE_TUNNEL_ADD_DEL_REPLY,
-  ({
-    rmp->sw_if_index = ntohl (sw_if_index);
-  }));
-  /* *INDENT-ON* */
-}
-
-static void send_ipsec_gre_tunnel_details
-  (ipsec_gre_tunnel_t * t, vl_api_registration_t * reg, u32 context)
-{
-  vl_api_ipsec_gre_tunnel_details_t *rmp;
-
-  rmp = vl_msg_api_alloc (sizeof (*rmp));
-  clib_memset (rmp, 0, sizeof (*rmp));
-  rmp->_vl_msg_id = ntohs (VL_API_IPSEC_GRE_TUNNEL_DETAILS);
-
-  ip4_address_encode (&t->tunnel_src, rmp->tunnel.src);
-  ip4_address_encode (&t->tunnel_dst, rmp->tunnel.dst);
-  rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
-  rmp->tunnel.local_sa_id = htonl (t->local_sa_id);
-  rmp->tunnel.remote_sa_id = htonl (t->remote_sa_id);
-  rmp->context = context;
-
-  vl_api_send_msg (reg, (u8 *) rmp);
-}
-
-static void vl_api_ipsec_gre_tunnel_dump_t_handler
-  (vl_api_ipsec_gre_tunnel_dump_t * mp)
-{
-  vl_api_registration_t *reg;
-  ipsec_gre_main_t *igm = &ipsec_gre_main;
-  ipsec_gre_tunnel_t *t;
-  u32 sw_if_index;
-
-  reg = vl_api_client_index_to_registration (mp->client_index);
-  if (!reg)
-    return;
-
-  sw_if_index = ntohl (mp->sw_if_index);
-
-  if (~0 == sw_if_index)
-    {
-        /* *INDENT-OFF* */
-        pool_foreach (t, igm->tunnels,
-        ({
-            send_ipsec_gre_tunnel_details(t, reg, mp->context);
-        }));
-        /* *INDENT-ON* */
-    }
-  else
-    {
-      if ((sw_if_index >= vec_len (igm->tunnel_index_by_sw_if_index)) ||
-	  (~0 == igm->tunnel_index_by_sw_if_index[sw_if_index]))
-	{
-	  return;
-	}
-      t = &igm->tunnels[igm->tunnel_index_by_sw_if_index[sw_if_index]];
-      send_ipsec_gre_tunnel_details (t, reg, mp->context);
-    }
-}
-
-/*
- * ipsec_gre_api_hookup
- * Add vpe's API message handlers to the table.
- * vlib has already mapped shared memory and
- * added the client registration handlers.
- * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
- */
-#define vl_msg_name_crc_list
-#include <vnet/vnet_all_api_h.h>
-#undef vl_msg_name_crc_list
-
-static void
-setup_message_id_table (api_main_t * am)
-{
-#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
-  foreach_vl_msg_name_crc_ipsec_gre;
-#undef _
-}
-
-static clib_error_t *
-ipsec_gre_api_hookup (vlib_main_t * vm)
-{
-  api_main_t *am = &api_main;
-
-#define _(N,n)                                                  \
-    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
-                           vl_api_##n##_t_handler,              \
-                           vl_noop_handler,                     \
-                           vl_api_##n##_t_endian,               \
-                           vl_api_##n##_t_print,                \
-                           sizeof(vl_api_##n##_t), 1);
-  foreach_vpe_api_msg;
-#undef _
-
-  /*
-   * Set up the (msg_name, crc, message-id) table
-   */
-  setup_message_id_table (am);
-
-  return 0;
-}
-
-VLIB_API_INIT_FUNCTION (ipsec_gre_api_hookup);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/src/vnet/ipsec-gre/ipsec_gre_doc.md b/src/vnet/ipsec-gre/ipsec_gre_doc.md
deleted file mode 100644
index e1bb9cdab1a..00000000000
--- a/src/vnet/ipsec-gre/ipsec_gre_doc.md
+++ /dev/null
@@ -1,74 +0,0 @@
-# VPP L2-GRE over IPsec implementation    {#ipsec_gre_doc}
-
-This is a memo intended to contain documentation of the VPP L2-GRE over IPsec implementation.
-Everything that is not directly obvious should come here.
-
-
-## L2-GRE over IPsec
-GRE encapsulate layer 2 traffic and IPSec encrypt what is encapsulated by GRE. The whole point of L2-GRE over IPSec is to tunnel layer 2 over GRE and IPSec by bridging the physical interface with IPSec-GRE tunnel interface.
-
-There are 2 dedicated nodes for encapsulation:
-* ipsec-gre<n>-tx - add GRE header
-* esp-encrypt - encrypt GRE packet to ESP packet
-
-There are 3 dedicated nodes for decapsulation:
-* ipsec-if-input - match IPSec SA by source IP address and SPI in ESP packet
-* esp-decrypt - decrypt ESP packet
-* ipsec-gre-input - remove GRE header
-
-
-### Configuration
-
-L2-GRE over IPsec support the following CLI configuration command:
-    create ipsec gre tunnel src <addr> dst <addr> local-sa <id> remote-sa <id> [del]
-
-src: tunnel source IPv4 address
-dst: tunnel destination IPv4 address
-local-sa: tunnel local IPSec Security Association
-remote-sa: tunnel remote IPSec Security Association
-del: delete IPSec-GRE tunnel
-
-L2-GRE over IPsec support the following API configuration command:
-    ipsec_gre_add_del_tunnel src <addr> dst <addr> local_sa <sa-id> remote_sa <sa-id> [del]
-
-src: tunnel source IPv4 address
-dst: tunnel destination IPv4 address
-local_sa: tunnel local IPSec Security Association
-remote_sa: tunnel remote IPSec Security Association
-del: delete IPSec-GRE tunnel
-
-
-### Configuration example
-
-Interface GigabitEthernet0/9/0 is in bridge with ipsec-gre0 tunnel interface, interface GigabitEthernet0/8/0 sending encapsulated and encrypted traffic.
-
-Configure IPv4 address on sending interface:
-set int ip address GigabitEthernet0/8/0 192.168.1.1/24
-
-Configure IPSec Security Associations:
-ipsec sa add 10 spi 1001 esp crypto-key 4a506a794f574265564551694d653768 crypto-alg aes-cbc-128 integ-key 4339314b55523947594d6d3547666b45764e6a58 integ-alg sha1-96
-ipsec sa add 20 spi 1000 esp crypto-key 49517065716d6235726c734a4372466c crypto-alg aes-cbc-128 integ-key 307439636a5542735133595835546f68534e4f64 integ-alg sha1-96
-
-Create IPSec-GRE tunnel:
-create ipsec gre tunnel src 192.168.1.1 dst 192.168.1.2 local-sa 10 remote-sa 20
-
-Set interfaces state:
-set int state GigabitEthernet0/8/0 up
-set int state GigabitEthernet0/9/0 up
-set int state ipsec-gre0 up
-
-Bridge physical interface with IPSec-GRE tunnel interface:
-set interface l2 bridge GigabitEthernet0/9/0 1
-set interface l2 bridge ipsec-gre0 1
-
-
-### Operational data
-
-L2-GRE over IPsec support the following CLI show command:
-    show ipsec gre tunnel
-
-L2-GRE over IPsec support the following API dump command:
-    ipsec_gre_tunnel_dump [sw_if_index <nn>]
-
-sw_if_index: software interface index of the IPSec-GRE tunnel interface
-
diff --git a/src/vnet/ipsec-gre/node.c b/src/vnet/ipsec-gre/node.c
deleted file mode 100644
index 6a3aaa12e8c..00000000000
--- a/src/vnet/ipsec-gre/node.c
+++ /dev/null
@@ -1,426 +0,0 @@
-/*
- * Copyright (c) 2016 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 L2-GRE over IPSec packet processing.
- *
- * Removes GRE header from the packet and sends it to the l2-input node.
-*/
-
-#include <vlib/vlib.h>
-#include <vnet/pg/pg.h>
-#include <vnet/ipsec-gre/ipsec_gre.h>
-#include <vppinfra/sparse_vec.h>
-
-#define foreach_ipsec_gre_input_next		\
-_(PUNT, "error-punt")                           \
-_(DROP, "error-drop")                           \
-_(L2_INPUT, "l2-input")
-
-typedef enum {
-#define _(s,n) IPSEC_GRE_INPUT_NEXT_##s,
-  foreach_ipsec_gre_input_next
-#undef _
-  IPSEC_GRE_INPUT_N_NEXT,
-} ipsec_gre_input_next_t;
-
-typedef struct {
-  u32 tunnel_id;
-  u32 length;
-  ip4_address_t src;
-  ip4_address_t dst;
-} ipsec_gre_rx_trace_t;
-
-static u8 * format_ipsec_gre_rx_trace (u8 * s, va_list * args)
-{
-  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
-  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
-  ipsec_gre_rx_trace_t * t = va_arg (*args, ipsec_gre_rx_trace_t *);
-
-  s = format (s, "GRE: tunnel %d len %d src %U dst %U",
-              t->tunnel_id, clib_net_to_host_u16(t->length),
-              format_ip4_address, &t->src.as_u8,
-              format_ip4_address, &t->dst.as_u8);
-  return s;
-}
-
-/**
- * @brief L2-GRE over IPSec input node.
- * @node ipsec-gre-input
- *
- * This node remove GRE header.
- *
- * @param vm         vlib_main_t corresponding to the current thread.
- * @param node       vlib_node_runtime_t data for this node.
- * @param from_frame vlib_frame_t whose contents should be dispatched.
- *
- * @par Graph mechanics: buffer metadata, next index usage
- *
- * <em>Uses:</em>
- * - <code>ip->src_address</code> and <code>ip->dst_address</code>
- *     - Match tunnel by source and destination addresses in GRE IP header.
- *
- * <em>Sets:</em>
- * - <code>vnet_buffer(b)->gre.src</code>
- *     - Save tunnel source IPv4 address.
- * - <code>vnet_buffer(b)->gre.dst</code>
- *     - Save tunnel destination IPv4 address.
- * - <code>vnet_buffer(b)->sw_if_index[VLIB_RX]</code>
- *     - Set input sw_if_index to IPSec-GRE tunnel for learning.
- *
- * <em>Next Index:</em>
- * - Dispatches the packet to the l2-input node.
-*/
-VLIB_NODE_FN (ipsec_gre_input_node) (vlib_main_t * vm,
-                 vlib_node_runtime_t * node,
-                 vlib_frame_t * from_frame)
-{
-  ipsec_gre_main_t * igm = &ipsec_gre_main;
-  u32 n_left_from, next_index, * from, * to_next;
-  u64 cached_tunnel_key = (u64) ~0;
-  u32 cached_tunnel_sw_if_index = 0, tunnel_sw_if_index;
-  u32 tun_src0, tun_dst0;
-  u32 tun_src1, tun_dst1;
-
-  from = vlib_frame_vector_args (from_frame);
-  n_left_from = from_frame->n_vectors;
-
-  next_index = node->cached_next_index;
-
-  while (n_left_from > 0)
-    {
-      u32 n_left_to_next;
-
-      vlib_get_next_frame (vm, node, next_index,
-			   to_next, n_left_to_next);
-
-      while (n_left_from >= 4 && n_left_to_next >= 2)
-	{
-	  u32 bi0, bi1;
-	  vlib_buffer_t * b0, * b1;
-	  gre_header_t * h0, * h1;
-          u16 version0, version1, protocol0, protocol1;
-          int verr0, verr1;
-	  u32 next0, next1;
-          ip4_header_t *ip0, *ip1;
-
-	  /* Prefetch next iteration. */
-	  {
-	    vlib_buffer_t * p2, * p3;
-
-	    p2 = vlib_get_buffer (vm, from[2]);
-	    p3 = vlib_get_buffer (vm, from[3]);
-
-	    vlib_prefetch_buffer_header (p2, LOAD);
-	    vlib_prefetch_buffer_header (p3, LOAD);
-
-	    CLIB_PREFETCH (p2->data, sizeof (h0[0]), LOAD);
-	    CLIB_PREFETCH (p3->data, sizeof (h1[0]), LOAD);
-	  }
-
-	  bi0 = from[0];
-	  bi1 = from[1];
-	  to_next[0] = bi0;
-	  to_next[1] = bi1;
-	  from += 2;
-	  to_next += 2;
-	  n_left_to_next -= 2;
-	  n_left_from -= 2;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-	  b1 = vlib_get_buffer (vm, bi1);
-
-          /* ip4_local hands us the ip header, not the gre header */
-          ip0 = vlib_buffer_get_current (b0);
-          ip1 = vlib_buffer_get_current (b1);
-
-          /* Save src + dst ip4 address */
-          tun_src0 = ip0->src_address.as_u32;
-          tun_dst0 = ip0->dst_address.as_u32;
-          tun_src1 = ip1->src_address.as_u32;
-          tun_dst1 = ip1->dst_address.as_u32;
-
-          vlib_buffer_advance (b0, sizeof (*ip0));
-          vlib_buffer_advance (b1, sizeof (*ip1));
-
-	  h0 = vlib_buffer_get_current (b0);
-	  h1 = vlib_buffer_get_current (b1);
-
-          protocol0 = clib_net_to_host_u16 (h0->protocol);
-          protocol1 = clib_net_to_host_u16 (h1->protocol);
-          if (PREDICT_TRUE(protocol0 == GRE_PROTOCOL_teb))
-            {
-              next0 = IPSEC_GRE_INPUT_NEXT_L2_INPUT;
-              b0->error = node->errors[IPSEC_GRE_ERROR_NONE];
-            }
-          else
-            {
-              b0->error = node->errors[IPSEC_GRE_ERROR_UNKNOWN_PROTOCOL];
-              next0 = IPSEC_GRE_INPUT_NEXT_DROP;
-            }
-          if (PREDICT_TRUE(protocol1 == GRE_PROTOCOL_teb))
-            {
-              next1 = IPSEC_GRE_INPUT_NEXT_L2_INPUT;
-              b1->error = node->errors[IPSEC_GRE_ERROR_NONE];
-            }
-          else
-            {
-              b1->error = node->errors[IPSEC_GRE_ERROR_UNKNOWN_PROTOCOL];
-              next1 = IPSEC_GRE_INPUT_NEXT_DROP;
-            }
-
-          version0 = clib_net_to_host_u16 (h0->flags_and_version);
-          verr0 =  version0 & GRE_VERSION_MASK;
-          version1 = clib_net_to_host_u16 (h1->flags_and_version);
-          verr1 =  version1 & GRE_VERSION_MASK;
-
-          b0->error = verr0 ? node->errors[IPSEC_GRE_ERROR_UNSUPPORTED_VERSION]
-              : b0->error;
-          next0 = verr0 ? IPSEC_GRE_INPUT_NEXT_DROP : next0;
-          b1->error = verr1 ? node->errors[IPSEC_GRE_ERROR_UNSUPPORTED_VERSION]
-              : b1->error;
-          next1 = verr1 ? IPSEC_GRE_INPUT_NEXT_DROP : next1;
-
-          /* For L2 payload set input sw_if_index to GRE tunnel for learning */
-          if (PREDICT_TRUE(next0 == IPSEC_GRE_INPUT_NEXT_L2_INPUT))
-            {
-              u64 key = ((u64)(tun_dst0) << 32) | (u64)(tun_src0);
-
-              if (cached_tunnel_key != key)
-                {
-                  vnet_hw_interface_t * hi;
-                  ipsec_gre_tunnel_t * t;
-                  uword * p;
-
-                  p = hash_get (igm->tunnel_by_key, key);
-                  if (!p)
-                    {
-                      next0 = IPSEC_GRE_INPUT_NEXT_DROP;
-                      b0->error = node->errors[IPSEC_GRE_ERROR_NO_SUCH_TUNNEL];
-                      goto drop0;
-                    }
-                  t = pool_elt_at_index (igm->tunnels, p[0]);
-                  hi = vnet_get_hw_interface (igm->vnet_main,
-                            t->hw_if_index);
-                  tunnel_sw_if_index = hi->sw_if_index;
-                  cached_tunnel_sw_if_index = tunnel_sw_if_index;
-                }
-              else
-                {
-                  tunnel_sw_if_index = cached_tunnel_sw_if_index;
-                }
-              vnet_buffer(b0)->sw_if_index[VLIB_RX] = tunnel_sw_if_index;
-            }
-
-drop0:
-          /* For L2 payload set input sw_if_index to GRE tunnel for learning */
-          if (PREDICT_TRUE(next1 == IPSEC_GRE_INPUT_NEXT_L2_INPUT))
-            {
-              u64 key = ((u64)(tun_dst1) << 32) | (u64)(tun_src1);
-
-              if (cached_tunnel_key != key)
-                {
-                  vnet_hw_interface_t * hi;
-                  ipsec_gre_tunnel_t * t;
-                  uword * p;
-
-                  p = hash_get (igm->tunnel_by_key, key);
-                  if (!p)
-                    {
-                      next1 = IPSEC_GRE_INPUT_NEXT_DROP;
-                      b1->error = node->errors[IPSEC_GRE_ERROR_NO_SUCH_TUNNEL];
-                      goto drop1;
-                    }
-                  t = pool_elt_at_index (igm->tunnels, p[0]);
-                  hi = vnet_get_hw_interface (igm->vnet_main,
-                            t->hw_if_index);
-                  tunnel_sw_if_index = hi->sw_if_index;
-                  cached_tunnel_sw_if_index = tunnel_sw_if_index;
-                }
-              else
-                {
-                  tunnel_sw_if_index = cached_tunnel_sw_if_index;
-                }
-              vnet_buffer(b1)->sw_if_index[VLIB_RX] = tunnel_sw_if_index;
-            }
-
-drop1:
-          if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
-            {
-              ipsec_gre_rx_trace_t *tr = vlib_add_trace (vm, node,
-                                                   b0, sizeof (*tr));
-              tr->tunnel_id = ~0;
-              tr->length = ip0->length;
-              tr->src.as_u32 = ip0->src_address.as_u32;
-              tr->dst.as_u32 = ip0->dst_address.as_u32;
-            }
-
-          if (PREDICT_FALSE(b1->flags & VLIB_BUFFER_IS_TRACED))
-            {
-              ipsec_gre_rx_trace_t *tr = vlib_add_trace (vm, node,
-                                                   b1, sizeof (*tr));
-              tr->tunnel_id = ~0;
-              tr->length = ip1->length;
-              tr->src.as_u32 = ip1->src_address.as_u32;
-              tr->dst.as_u32 = ip1->dst_address.as_u32;
-            }
-
-          vlib_buffer_advance (b0, sizeof (*h0));
-          vlib_buffer_advance (b1, sizeof (*h1));
-
-	  vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
-					   to_next, n_left_to_next,
-					   bi0, bi1, next0, next1);
-	}
-
-      while (n_left_from > 0 && n_left_to_next > 0)
-	{
-	  u32 bi0;
-	  vlib_buffer_t * b0;
-	  gre_header_t * h0;
-          ip4_header_t * ip0;
-          u16 version0, protocol0;
-          int verr0;
-	  u32 next0;
-	  u32 tun_src0, tun_dst0;
-
-	  bi0 = from[0];
-	  to_next[0] = bi0;
-	  from += 1;
-	  to_next += 1;
-	  n_left_from -= 1;
-	  n_left_to_next -= 1;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-          ip0 = vlib_buffer_get_current (b0);
-
-          tun_src0 = ip0->src_address.as_u32;
-          tun_dst0 = ip0->dst_address.as_u32;
-
-          vlib_buffer_advance (b0, sizeof (*ip0));
-
-	  h0 = vlib_buffer_get_current (b0);
-
-          protocol0 = clib_net_to_host_u16 (h0->protocol);
-          if (PREDICT_TRUE(protocol0 == GRE_PROTOCOL_teb))
-            {
-              next0 = IPSEC_GRE_INPUT_NEXT_L2_INPUT;
-              b0->error = node->errors[IPSEC_GRE_ERROR_NONE];
-            }
-          else
-            {
-              b0->error = node->errors[IPSEC_GRE_ERROR_UNKNOWN_PROTOCOL];
-              next0 = IPSEC_GRE_INPUT_NEXT_DROP;
-            }
-
-          version0 = clib_net_to_host_u16 (h0->flags_and_version);
-          verr0 =  version0 & GRE_VERSION_MASK;
-          b0->error = verr0 ? node->errors[IPSEC_GRE_ERROR_UNSUPPORTED_VERSION]
-              : b0->error;
-          next0 = verr0 ? IPSEC_GRE_INPUT_NEXT_DROP : next0;
-
-          /* For L2 payload set input sw_if_index to GRE tunnel for learning */
-          if (PREDICT_TRUE(next0 == IPSEC_GRE_INPUT_NEXT_L2_INPUT))
-            {
-              u64 key = ((u64)(tun_dst0) << 32) | (u64)(tun_src0);
-
-              if (cached_tunnel_key != key)
-                {
-                  vnet_hw_interface_t * hi;
-                  ipsec_gre_tunnel_t * t;
-                  uword * p;
-
-                  p = hash_get (igm->tunnel_by_key, key);
-                  if (!p)
-                    {
-                      next0 = IPSEC_GRE_INPUT_NEXT_DROP;
-                      b0->error = node->errors[IPSEC_GRE_ERROR_NO_SUCH_TUNNEL];
-                      goto drop;
-                    }
-                  t = pool_elt_at_index (igm->tunnels, p[0]);
-                  hi = vnet_get_hw_interface (igm->vnet_main,
-                            t->hw_if_index);
-                  tunnel_sw_if_index = hi->sw_if_index;
-                  cached_tunnel_sw_if_index = tunnel_sw_if_index;
-                }
-              else
-                {
-                  tunnel_sw_if_index = cached_tunnel_sw_if_index;
-                }
-              vnet_buffer(b0)->sw_if_index[VLIB_RX] = tunnel_sw_if_index;
-            }
-
-drop:
-          if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
-            {
-              ipsec_gre_rx_trace_t *tr = vlib_add_trace (vm, node,
-                                                   b0, sizeof (*tr));
-              tr->tunnel_id = ~0;
-              tr->length = ip0->length;
-              tr->src.as_u32 = ip0->src_address.as_u32;
-              tr->dst.as_u32 = ip0->dst_address.as_u32;
-            }
-
-          vlib_buffer_advance (b0, sizeof (*h0));
-
-	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
-					   to_next, n_left_to_next,
-					   bi0, next0);
-	}
-
-      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-    }
-  vlib_node_increment_counter (vm, ipsec_gre_input_node.index,
-                               IPSEC_GRE_ERROR_PKTS_DECAP, from_frame->n_vectors);
-  return from_frame->n_vectors;
-}
-
-static char * ipsec_gre_error_strings[] = {
-#define ipsec_gre_error(n,s) s,
-#include "error.def"
-#undef ipsec_gre_error
-};
-
-VLIB_REGISTER_NODE (ipsec_gre_input_node) = {
-  .name = "ipsec-gre-input",
-  /* Takes a vector of packets. */
-  .vector_size = sizeof (u32),
-
-  .n_errors = IPSEC_GRE_N_ERROR,
-  .error_strings = ipsec_gre_error_strings,
-
-  .n_next_nodes = IPSEC_GRE_INPUT_N_NEXT,
-  .next_nodes = {
-#define _(s,n) [IPSEC_GRE_INPUT_NEXT_##s] = n,
-    foreach_ipsec_gre_input_next
-#undef _
-  },
-
-  .format_trace = format_ipsec_gre_rx_trace,
-};
-
-static clib_error_t * ipsec_gre_input_init (vlib_main_t * vm)
-{
-  {
-    clib_error_t * error;
-    error = vlib_call_init_function (vm, ipsec_gre_init);
-    if (error)
-      clib_error_report (error);
-  }
-
-  return 0;
-}
-
-VLIB_INIT_FUNCTION (ipsec_gre_input_init);