gre: move to a plugin

Move GRE folder under vnet to the plugin folder, and modify some of path
of the #inlude<header> to the new path.

Add a plugin.c file to register a plugin.

JIRA: VPP-2044

Type: improvement
Change-Id: I7f64cecd97538a7492e56a41558dab58281a9fa5
Signed-off-by: Chuhao Tang <nicotang@cisco.com>

1 files changed, 0 insertions, 220 deletions

diff --git a/src/vnet/gre/gre_api.c b/src/vnet/gre/gre_api.c
deleted file mode 100644
index 59a1d3d738d..00000000000
--- a/src/vnet/gre/gre_api.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- *------------------------------------------------------------------
- * gre_api.c - 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/gre/gre.h>
-#include <vnet/fib/fib_table.h>
-#include <vnet/tunnel/tunnel_types_api.h>
-#include <vnet/ip/ip_types_api.h>
-
-#include <vnet/gre/gre.api_enum.h>
-#include <vnet/gre/gre.api_types.h>
-
-#define REPLY_MSG_ID_BASE gre_main.msg_id_base
-#include <vlibapi/api_helper_macros.h>
-
-static int
-gre_tunnel_type_decode (vl_api_gre_tunnel_type_t in, gre_tunnel_type_t * out)
-{
-  switch (in)
-    {
-#define _(n, v)                                           \
-      case GRE_API_TUNNEL_TYPE_##n:                       \
-        *out = GRE_TUNNEL_TYPE_##n;                       \
-        return (0);
-      foreach_gre_tunnel_type
-#undef _
-    }
-
-  return (VNET_API_ERROR_INVALID_VALUE);
-}
-
-static vl_api_gre_tunnel_type_t
-gre_tunnel_type_encode (gre_tunnel_type_t in)
-{
-  vl_api_gre_tunnel_type_t out = GRE_API_TUNNEL_TYPE_L3;
-
-  switch (in)
-    {
-#define _(n, v)                                           \
-      case GRE_TUNNEL_TYPE_##n:                           \
-        out = GRE_API_TUNNEL_TYPE_##n;                    \
-        break;
-      foreach_gre_tunnel_type
-#undef _
-    }
-
-  return (out);
-}
-
-static void vl_api_gre_tunnel_add_del_t_handler
-  (vl_api_gre_tunnel_add_del_t * mp)
-{
-  vnet_gre_tunnel_add_del_args_t _a = { }, *a = &_a;
-  vl_api_gre_tunnel_add_del_reply_t *rmp;
-  tunnel_encap_decap_flags_t flags;
-  u32 sw_if_index = ~0;
-  ip46_type_t itype[2];
-  int rv = 0;
-
-  itype[0] = ip_address_decode (&mp->tunnel.src, &a->src);
-  itype[1] = ip_address_decode (&mp->tunnel.dst, &a->dst);
-
-  if (itype[0] != itype[1])
-    {
-      rv = VNET_API_ERROR_INVALID_PROTOCOL;
-      goto out;
-    }
-
-  if (ip46_address_is_equal (&a->src, &a->dst))
-    {
-      rv = VNET_API_ERROR_SAME_SRC_DST;
-      goto out;
-    }
-
-  rv = gre_tunnel_type_decode (mp->tunnel.type, &a->type);
-
-  if (rv)
-    goto out;
-
-  rv = tunnel_mode_decode (mp->tunnel.mode, &a->mode);
-
-  if (rv)
-    goto out;
-
-  rv = tunnel_encap_decap_flags_decode (mp->tunnel.flags, &flags);
-
-  if (rv)
-    goto out;
-
-  a->is_add = mp->is_add;
-  a->is_ipv6 = (itype[0] == IP46_TYPE_IP6);
-  a->instance = ntohl (mp->tunnel.instance);
-  a->session_id = ntohs (mp->tunnel.session_id);
-  a->outer_table_id = ntohl (mp->tunnel.outer_table_id);
-  a->flags = flags;
-
-  rv = vnet_gre_tunnel_add_del (a, &sw_if_index);
-
-out:
-  /* *INDENT-OFF* */
-  REPLY_MACRO2(VL_API_GRE_TUNNEL_ADD_DEL_REPLY,
-  ({
-    rmp->sw_if_index = ntohl (sw_if_index);
-  }));
-  /* *INDENT-ON* */
-}
-
-static void send_gre_tunnel_details
-  (gre_tunnel_t * t, vl_api_gre_tunnel_dump_t * mp)
-{
-  vl_api_gre_tunnel_details_t *rmp;
-
-  /* *INDENT-OFF* */
-  REPLY_MACRO_DETAILS2(VL_API_GRE_TUNNEL_DETAILS,
-  ({
-    ip_address_encode (&t->tunnel_src, IP46_TYPE_ANY, &rmp->tunnel.src);
-    ip_address_encode (&t->tunnel_dst.fp_addr, IP46_TYPE_ANY, &rmp->tunnel.dst);
-
-    rmp->tunnel.outer_table_id =
-      htonl (fib_table_get_table_id
-             (t->outer_fib_index, t->tunnel_dst.fp_proto));
-
-    rmp->tunnel.type = gre_tunnel_type_encode (t->type);
-    rmp->tunnel.mode = tunnel_mode_encode (t->mode);
-    rmp->tunnel.flags = tunnel_encap_decap_flags_encode (t->flags);
-    rmp->tunnel.instance = htonl (t->user_instance);
-    rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
-    rmp->tunnel.session_id = htons (t->session_id);
-  }));
-  /* *INDENT-ON* */
-}
-
-static void
-vl_api_gre_tunnel_dump_t_handler (vl_api_gre_tunnel_dump_t * mp)
-{
-  vl_api_registration_t *reg;
-  gre_main_t *gm = &gre_main;
-  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, gm->tunnels)
-       {
-        send_gre_tunnel_details(t, mp);
-      }
-      /* *INDENT-ON* */
-    }
-
-  else
-    {
-      if ((sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index)) ||
-	  (~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
-	{
-	  return;
-	}
-      t = &gm->tunnels[gm->tunnel_index_by_sw_if_index[sw_if_index]];
-      send_gre_tunnel_details (t, mp);
-    }
-}
-
-/*
- * 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()
- */
-/* API definitions */
-#include <vnet/format_fns.h>
-#include <vnet/gre/gre.api.c>
-
-static clib_error_t *
-gre_api_hookup (vlib_main_t * vm)
-{
-  /*
-   * Set up the (msg_name, crc, message-id) table
-   */
-  gre_main.msg_id_base = setup_message_id_table ();
-
-  return 0;
-}
-
-VLIB_API_INIT_FUNCTION (gre_api_hookup);
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */