gre: Multi-point interfaces

Type: feature

Change-Id: I0129ad6ace44a50a8a3b26db8e445cd06b2b49e8
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/src/vnet/nhrp/nhrp_api.c b/src/vnet/nhrp/nhrp_api.c
new file mode 100644
index 00000000000..6f07eb700e4
--- /dev/null
+++ b/src/vnet/nhrp/nhrp_api.c
@@ -0,0 +1,134 @@
+/*
+ *------------------------------------------------------------------
+ * nhrp_api.c - nhrp 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/api_errno.h>
+#include <vnet/nhrp/nhrp.h>
+#include <vnet/ip/ip_types_api.h>
+#include <vnet/fib/fib_table.h>
+
+/* define message IDs */
+#include <vnet/format_fns.h>
+#include <vnet/nhrp/nhrp.api_enum.h>
+#include <vnet/nhrp/nhrp.api_types.h>
+
+static u32 nhrp_base_msg_id;
+#define REPLY_MSG_ID_BASE nhrp_base_msg_id
+
+#include <vlibapi/api_helper_macros.h>
+
+static void
+vl_api_nhrp_entry_add_del_t_handler (vl_api_nhrp_entry_add_del_t * mp)
+{
+  vl_api_nhrp_entry_add_del_reply_t *rmp;
+  ip46_address_t peer, nh;
+  int rv;
+
+  VALIDATE_SW_IF_INDEX ((&mp->entry));
+
+  ip_address_decode (&mp->entry.peer, &peer);
+  ip_address_decode (&mp->entry.nh, &nh);
+
+  if (mp->is_add)
+    rv = nhrp_entry_add (ntohl (mp->entry.sw_if_index), &peer,
+			 ntohl (mp->entry.nh_table_id), &nh);
+  else
+    rv = nhrp_entry_del (ntohl (mp->entry.sw_if_index), &peer);
+
+  BAD_SW_IF_INDEX_LABEL;
+
+  REPLY_MACRO (VL_API_NHRP_ENTRY_ADD_DEL_REPLY);
+}
+
+typedef struct vl_api_nhrp_send_t_
+{
+  vl_api_registration_t *reg;
+  u32 context;
+} vl_api_nhrp_send_t;
+
+static walk_rc_t
+vl_api_nhrp_send_one (index_t nei, void *arg)
+{
+  vl_api_nhrp_details_t *mp;
+  vl_api_nhrp_send_t *ctx = arg;
+  const nhrp_entry_t *ne;
+
+  mp = vl_msg_api_alloc (sizeof (*mp));
+  clib_memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_NHRP_DETAILS + REPLY_MSG_ID_BASE);
+  mp->context = ctx->context;
+
+  ne = nhrp_entry_get (nei);
+
+  ip_address_encode (&ne->ne_key->nk_peer, IP46_TYPE_ANY, &mp->entry.peer);
+  ip_address_encode (&ne->ne_nh.fp_addr, IP46_TYPE_ANY, &mp->entry.nh);
+  mp->entry.nh_table_id =
+    htonl (fib_table_get_table_id (ne->ne_fib_index, ne->ne_nh.fp_proto));
+  mp->entry.sw_if_index = htonl (ne->ne_key->nk_sw_if_index);
+
+  vl_api_send_msg (ctx->reg, (u8 *) mp);
+
+  return (WALK_CONTINUE);
+}
+
+static void
+vl_api_nhrp_dump_t_handler (vl_api_nhrp_dump_t * mp)
+{
+  vl_api_registration_t *reg;
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  vl_api_nhrp_send_t ctx = {
+    .reg = reg,
+    .context = mp->context,
+  };
+
+  nhrp_walk (vl_api_nhrp_send_one, &ctx);
+}
+
+/*
+ * nhrp_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()
+ */
+#include <vnet/nhrp/nhrp.api.c>
+
+static clib_error_t *
+nhrp_api_hookup (vlib_main_t * vm)
+{
+  nhrp_base_msg_id = setup_message_id_table ();
+
+  return (NULL);
+}
+
+VLIB_API_INIT_FUNCTION (nhrp_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */