API refactoring : l2, mpls, sr

Change-Id: Ic5f273dae607a1d3902489e65734c76f027dc30f
Signed-off-by: Pavel Kotucek <pkotucek@cisco.com>

7 files changed, 1742 insertions, 3 deletions

diff --git a/src/vnet/l2/l2.api b/src/vnet/l2/l2.api
index 5fce7944b58..5b24f259f68 100644
--- a/src/vnet/l2/l2.api
+++ b/src/vnet/l2/l2.api
@@ -36,3 +36,232 @@ define l2_xconnect_dump
   u32 context;
 };
 
+/** \brief l2 fib table entry structure
+    @param bd_id - the l2 fib / bridge domain table id
+    @param mac - the entry's mac address
+    @param sw_if_index - index of the interface
+    @param static_mac - the entry is statically configured.
+    @param filter_mac - the entry is a mac filter entry.
+    @param bvi_mac - the mac address is a bridge virtual interface
+*/
+define l2_fib_table_entry
+{
+  u32 context;
+  u32 bd_id;
+  u64 mac;
+  u32 sw_if_index;
+  u8 static_mac;
+  u8 filter_mac;
+  u8 bvi_mac;
+};
+
+/** \brief Dump l2 fib (aka bridge domain) table
+    @param client_index - opaque cookie to identify the sender
+    @param bd_id - the l2 fib / bridge domain table identifier
+*/
+define l2_fib_table_dump
+{
+  u32 client_index;
+  u32 context;
+  u32 bd_id;
+};
+
+/** \brief L2 fib clear table request, clear all mac entries in the l2 fib
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+*/
+define l2_fib_clear_table
+{
+  u32 client_index;
+  u32 context;
+};
+
+/** \brief L2 fib clear table response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the request
+*/
+define l2_fib_clear_table_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief L2 FIB add entry request
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param mac - the entry's mac address
+    @param bd_id - the entry's bridge domain id
+    @param sw_if_index - the interface
+    @param is_add - If non zero add the entry, else delete it
+    @param static_mac - 
+    @param filter_mac -
+*/
+define l2fib_add_del
+{
+  u32 client_index;
+  u32 context;
+  u64 mac;
+  u32 bd_id;
+  u32 sw_if_index;
+  u8 is_add;
+  u8 static_mac;
+  u8 filter_mac;
+  u8 bvi_mac;
+};
+
+/** \brief L2 FIB add entry response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the add l2fib entry request
+*/
+define l2fib_add_del_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief Set L2 flags request !!! TODO - need more info, feature bits in l2_input.h
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param sw_if_index - interface 
+    @param is_set - if non-zero, set the bits, else clear them
+    @param feature_bitmap - non-zero bits to set or clear
+*/
+define l2_flags
+{
+  u32 client_index;
+  u32 context;
+  u32 sw_if_index;
+  u8 is_set;
+  u32 feature_bitmap;
+};
+
+/** \brief Set L2 bits response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the set l2 bits request
+*/
+define l2_flags_reply
+{
+  u32 context;
+  i32 retval;
+  u32 resulting_feature_bitmap;
+};
+
+/** \brief L2 bridge domain add or delete request
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param bd_id - the bridge domain to create
+    @param flood - enable/disable bcast/mcast flooding in the bd
+    @param uu_flood - enable/disable uknown unicast flood in the bd
+    @param forward - enable/disable forwarding on all interfaces in the bd
+    @param learn - enable/disable learning on all interfaces in the bd
+    @param arp_term - enable/disable arp termination in the bd
+    @param mac_age - mac aging time in min, 0 for disabled
+    @param is_add - add or delete flag
+*/
+define bridge_domain_add_del
+{
+  u32 client_index;
+  u32 context;
+  u32 bd_id;
+  u8 flood;
+  u8 uu_flood;
+  u8 forward;
+  u8 learn;
+  u8 arp_term;
+  u8 mac_age;
+  u8 is_add;
+};
+
+/** \brief L2 bridge domain add or delete response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the set bridge flags request
+*/
+define bridge_domain_add_del_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief L2 bridge domain request operational state details
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param bd_id - the bridge domain id desired or ~0 to request all bds
+*/
+define bridge_domain_dump
+{
+  u32 client_index;
+  u32 context;
+  u32 bd_id;
+};
+
+/** \brief L2 bridge domain operational state response
+    @param bd_id - the bridge domain id
+    @param flood - bcast/mcast flooding state on all interfaces in the bd
+    @param uu_flood - uknown unicast flooding state on all interfaces in the bd
+    @param forward - forwarding state on all interfaces in the bd
+    @param learn - learning state on all interfaces in the bd
+    @param arp_term - arp termination state on all interfaces in the bd
+    @param mac_age - mac aging time in min, 0 for disabled
+    @param n_sw_ifs - number of sw_if_index's in the domain
+*/
+define bridge_domain_details
+{
+  u32 context;
+  u32 bd_id;
+  u8 flood;
+  u8 uu_flood;
+  u8 forward;
+  u8 learn;
+  u8 arp_term;
+  u8 mac_age;
+  u32 bvi_sw_if_index;
+  u32 n_sw_ifs;
+};
+
+/** \brief L2 bridge domain sw interface operational state response
+    @param bd_id - the bridge domain id
+    @param sw_if_index - sw_if_index in the domain
+    @param shg - split horizon group for the interface
+*/
+define bridge_domain_sw_if_details
+{
+  u32 context;
+  u32 bd_id;
+  u32 sw_if_index;
+  u8 shg;
+};
+
+/** \brief Set bridge flags (such as L2_LEARN, L2_FWD, L2_FLOOD, 
+    L2_UU_FLOOD, or L2_ARP_TERM) request
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param bd_id - the bridge domain to set the flags for
+    @param is_set - if non-zero, set the flags, else clear them
+    @param feature_bitmap - bits that are non-zero to set or clear
+*/
+define bridge_flags
+{
+  u32 client_index;
+  u32 context;
+  u32 bd_id;
+  u8 is_set;
+  u32 feature_bitmap;
+};
+
+/** \brief Set bridge flags response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the set bridge flags request
+    @param resulting_feature_bitmap - the feature bitmap value after the request is implemented
+*/
+define bridge_flags_reply
+{
+  u32 context;
+  i32 retval;
+  u32 resulting_feature_bitmap;
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/l2/l2_api.c b/src/vnet/l2/l2_api.c
index ca4f593f1ec..ef33509c902 100644
--- a/src/vnet/l2/l2_api.c
+++ b/src/vnet/l2/l2_api.c
@@ -23,6 +23,7 @@
 #include <vnet/interface.h>
 #include <vnet/api_errno.h>
 #include <vnet/l2/l2_input.h>
+#include <vnet/l2/l2_fib.h>
 
 #include <vnet/vnet_msg_enum.h>
 
@@ -42,8 +43,18 @@
 
 #include <vlibapi/api_helper_macros.h>
 
-#define foreach_vpe_api_msg                             \
-_(L2_XCONNECT_DUMP, l2_xconnect_dump)
+#define foreach_vpe_api_msg                                 \
+_(L2_XCONNECT_DUMP, l2_xconnect_dump)                       \
+_(L2_FIB_CLEAR_TABLE, l2_fib_clear_table)                   \
+_(L2_FIB_TABLE_DUMP, l2_fib_table_dump)                     \
+_(L2_FIB_TABLE_ENTRY, l2_fib_table_entry)                   \
+_(L2FIB_ADD_DEL, l2fib_add_del)                             \
+_(L2_FLAGS, l2_flags)                                       \
+_(BRIDGE_DOMAIN_ADD_DEL, bridge_domain_add_del)             \
+_(BRIDGE_DOMAIN_DUMP, bridge_domain_dump)                   \
+_(BRIDGE_DOMAIN_DETAILS, bridge_domain_details)             \
+_(BRIDGE_DOMAIN_SW_IF_DETAILS, bridge_domain_sw_if_details) \
+_(BRIDGE_FLAGS, bridge_flags)
 
 static void
 send_l2_xconnect_details (unix_shared_memory_queue_t * q, u32 context,
@@ -86,9 +97,365 @@ vl_api_l2_xconnect_dump_t_handler (vl_api_l2_xconnect_dump_t * mp)
   /* *INDENT-ON* */
 }
 
+static void
+vl_api_l2_fib_clear_table_t_handler (vl_api_l2_fib_clear_table_t * mp)
+{
+  int rv = 0;
+  vl_api_l2_fib_clear_table_reply_t *rmp;
+
+  /* DAW-FIXME: This API should only clear non-static l2fib entries, but
+   *            that is not currently implemented.  When that TODO is fixed
+   *            this call should be changed to pass 1 instead of 0.
+   */
+  l2fib_clear_table (0);
+
+  REPLY_MACRO (VL_API_L2_FIB_CLEAR_TABLE_REPLY);
+}
+
+static void
+send_l2fib_table_entry (vpe_api_main_t * am,
+			unix_shared_memory_queue_t * q,
+			l2fib_entry_key_t * l2fe_key,
+			l2fib_entry_result_t * l2fe_res, u32 context)
+{
+  vl_api_l2_fib_table_entry_t *mp;
+
+  mp = vl_msg_api_alloc (sizeof (*mp));
+  memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_L2_FIB_TABLE_ENTRY);
+
+  mp->bd_id =
+    ntohl (l2input_main.bd_configs[l2fe_key->fields.bd_index].bd_id);
+
+  mp->mac = l2fib_make_key (l2fe_key->fields.mac, 0);
+  mp->sw_if_index = ntohl (l2fe_res->fields.sw_if_index);
+  mp->static_mac = l2fe_res->fields.static_mac;
+  mp->filter_mac = l2fe_res->fields.filter;
+  mp->bvi_mac = l2fe_res->fields.bvi;
+  mp->context = context;
+
+  vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_l2_fib_table_entry_t_handler (vl_api_l2_fib_table_entry_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+static void
+vl_api_l2_fib_table_dump_t_handler (vl_api_l2_fib_table_dump_t * mp)
+{
+  vpe_api_main_t *am = &vpe_api_main;
+  bd_main_t *bdm = &bd_main;
+  l2fib_entry_key_t *l2fe_key = NULL;
+  l2fib_entry_result_t *l2fe_res = NULL;
+  u32 ni, bd_id = ntohl (mp->bd_id);
+  u32 bd_index;
+  unix_shared_memory_queue_t *q;
+  uword *p;
+
+  q = vl_api_client_index_to_input_queue (mp->client_index);
+  if (q == 0)
+    return;
+
+  /* see l2fib_table_dump: ~0 means "any" */
+  if (bd_id == ~0)
+    bd_index = ~0;
+  else
+    {
+      p = hash_get (bdm->bd_index_by_bd_id, bd_id);
+      if (p == 0)
+	return;
+
+      bd_index = p[0];
+    }
+
+  l2fib_table_dump (bd_index, &l2fe_key, &l2fe_res);
+
+  vec_foreach_index (ni, l2fe_key)
+  {
+    send_l2fib_table_entry (am, q, vec_elt_at_index (l2fe_key, ni),
+			    vec_elt_at_index (l2fe_res, ni), mp->context);
+  }
+  vec_free (l2fe_key);
+  vec_free (l2fe_res);
+}
+
+static void
+vl_api_l2fib_add_del_t_handler (vl_api_l2fib_add_del_t * mp)
+{
+  bd_main_t *bdm = &bd_main;
+  l2input_main_t *l2im = &l2input_main;
+  vl_api_l2fib_add_del_reply_t *rmp;
+  int rv = 0;
+  u64 mac = 0;
+  u32 sw_if_index = ntohl (mp->sw_if_index);
+  u32 bd_id = ntohl (mp->bd_id);
+  u32 bd_index;
+  u32 static_mac;
+  u32 filter_mac;
+  u32 bvi_mac;
+  uword *p;
+
+  mac = mp->mac;
+
+  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
+  if (!p)
+    {
+      rv = VNET_API_ERROR_NO_SUCH_ENTRY;
+      goto bad_sw_if_index;
+    }
+  bd_index = p[0];
+
+  if (mp->is_add)
+    {
+      filter_mac = mp->filter_mac ? 1 : 0;
+      if (filter_mac == 0)
+	{
+	  VALIDATE_SW_IF_INDEX (mp);
+	  if (vec_len (l2im->configs) <= sw_if_index)
+	    {
+	      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
+	      goto bad_sw_if_index;
+	    }
+	  else
+	    {
+	      l2_input_config_t *config;
+	      config = vec_elt_at_index (l2im->configs, sw_if_index);
+	      if (config->bridge == 0)
+		{
+		  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
+		  goto bad_sw_if_index;
+		}
+	    }
+	}
+      static_mac = mp->static_mac ? 1 : 0;
+      bvi_mac = mp->bvi_mac ? 1 : 0;
+      l2fib_add_entry (mac, bd_index, sw_if_index, static_mac, filter_mac,
+		       bvi_mac);
+    }
+  else
+    {
+      l2fib_del_entry (mac, bd_index);
+    }
+
+  BAD_SW_IF_INDEX_LABEL;
+
+  REPLY_MACRO (VL_API_L2FIB_ADD_DEL_REPLY);
+}
+
+static void
+vl_api_l2_flags_t_handler (vl_api_l2_flags_t * mp)
+{
+  vl_api_l2_flags_reply_t *rmp;
+  int rv = 0;
+  u32 sw_if_index = ntohl (mp->sw_if_index);
+  u32 flags = ntohl (mp->feature_bitmap);
+  u32 rbm = 0;
+
+  VALIDATE_SW_IF_INDEX (mp);
+
+#define _(a,b) \
+    if (flags & L2INPUT_FEAT_ ## a) \
+        rbm = l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_ ## a, mp->is_set);
+  foreach_l2input_feat;
+#undef _
+
+  BAD_SW_IF_INDEX_LABEL;
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2(VL_API_L2_FLAGS_REPLY,
+  ({
+    rmp->resulting_feature_bitmap = ntohl(rbm);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_bridge_domain_add_del_t_handler (vl_api_bridge_domain_add_del_t * mp)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  bd_main_t *bdm = &bd_main;
+  vl_api_bridge_domain_add_del_reply_t *rmp;
+  int rv = 0;
+  u32 enable_flags = 0, disable_flags = 0;
+  u32 bd_id = ntohl (mp->bd_id);
+  u32 bd_index;
+
+  if (mp->is_add)
+    {
+      bd_index = bd_find_or_add_bd_index (bdm, bd_id);
+
+      if (mp->flood)
+	enable_flags |= L2_FLOOD;
+      else
+	disable_flags |= L2_FLOOD;
+
+      if (mp->uu_flood)
+	enable_flags |= L2_UU_FLOOD;
+      else
+	disable_flags |= L2_UU_FLOOD;
+
+      if (mp->forward)
+	enable_flags |= L2_FWD;
+      else
+	disable_flags |= L2_FWD;
+
+      if (mp->arp_term)
+	enable_flags |= L2_ARP_TERM;
+      else
+	disable_flags |= L2_ARP_TERM;
+
+      if (mp->learn)
+	enable_flags |= L2_LEARN;
+      else
+	disable_flags |= L2_LEARN;
+
+      if (enable_flags)
+	bd_set_flags (vm, bd_index, enable_flags, 1 /* enable */ );
+
+      if (disable_flags)
+	bd_set_flags (vm, bd_index, disable_flags, 0 /* disable */ );
+
+      bd_set_mac_age (vm, bd_index, mp->mac_age);
+    }
+  else
+    rv = bd_delete_bd_index (bdm, bd_id);
+
+  REPLY_MACRO (VL_API_BRIDGE_DOMAIN_ADD_DEL_REPLY);
+}
+
+static void
+vl_api_bridge_domain_details_t_handler (vl_api_bridge_domain_details_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+static void
+  vl_api_bridge_domain_sw_if_details_t_handler
+  (vl_api_bridge_domain_sw_if_details_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+static void
+send_bridge_domain_details (unix_shared_memory_queue_t * q,
+			    l2_bridge_domain_t * bd_config,
+			    u32 n_sw_ifs, u32 context)
+{
+  vl_api_bridge_domain_details_t *mp;
+
+  mp = vl_msg_api_alloc (sizeof (*mp));
+  memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_BRIDGE_DOMAIN_DETAILS);
+  mp->bd_id = ntohl (bd_config->bd_id);
+  mp->flood = bd_feature_flood (bd_config);
+  mp->uu_flood = bd_feature_uu_flood (bd_config);
+  mp->forward = bd_feature_forward (bd_config);
+  mp->learn = bd_feature_learn (bd_config);
+  mp->arp_term = bd_feature_arp_term (bd_config);
+  mp->bvi_sw_if_index = ntohl (bd_config->bvi_sw_if_index);
+  mp->mac_age = bd_config->mac_age;
+  mp->n_sw_ifs = ntohl (n_sw_ifs);
+  mp->context = context;
+
+  vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+send_bd_sw_if_details (l2input_main_t * l2im,
+		       unix_shared_memory_queue_t * q,
+		       l2_flood_member_t * member, u32 bd_id, u32 context)
+{
+  vl_api_bridge_domain_sw_if_details_t *mp;
+  l2_input_config_t *input_cfg;
+
+  mp = vl_msg_api_alloc (sizeof (*mp));
+  memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_BRIDGE_DOMAIN_SW_IF_DETAILS);
+  mp->bd_id = ntohl (bd_id);
+  mp->sw_if_index = ntohl (member->sw_if_index);
+  input_cfg = vec_elt_at_index (l2im->configs, member->sw_if_index);
+  mp->shg = input_cfg->shg;
+  mp->context = context;
+
+  vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_bridge_domain_dump_t_handler (vl_api_bridge_domain_dump_t * mp)
+{
+  bd_main_t *bdm = &bd_main;
+  l2input_main_t *l2im = &l2input_main;
+  unix_shared_memory_queue_t *q;
+  l2_bridge_domain_t *bd_config;
+  u32 bd_id, bd_index;
+  u32 end;
+
+  q = vl_api_client_index_to_input_queue (mp->client_index);
+
+  if (q == 0)
+    return;
+
+  bd_id = ntohl (mp->bd_id);
+
+  bd_index = (bd_id == ~0) ? 0 : bd_find_or_add_bd_index (bdm, bd_id);
+  end = (bd_id == ~0) ? vec_len (l2im->bd_configs) : bd_index + 1;
+  for (; bd_index < end; bd_index++)
+    {
+      bd_config = l2input_bd_config_from_index (l2im, bd_index);
+      /* skip dummy bd_id 0 */
+      if (bd_config && (bd_config->bd_id > 0))
+	{
+	  u32 n_sw_ifs;
+	  l2_flood_member_t *m;
+
+	  n_sw_ifs = vec_len (bd_config->members);
+	  send_bridge_domain_details (q, bd_config, n_sw_ifs, mp->context);
+
+	  vec_foreach (m, bd_config->members)
+	  {
+	    send_bd_sw_if_details (l2im, q, m, bd_config->bd_id, mp->context);
+	  }
+	}
+    }
+}
+
+static void
+vl_api_bridge_flags_t_handler (vl_api_bridge_flags_t * mp)
+{
+  vlib_main_t *vm = vlib_get_main ();
+  bd_main_t *bdm = &bd_main;
+  vl_api_bridge_flags_reply_t *rmp;
+  int rv = 0;
+  u32 bd_id = ntohl (mp->bd_id);
+  u32 bd_index;
+  u32 flags = ntohl (mp->feature_bitmap);
+  uword *p;
+
+  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
+  if (p == 0)
+    {
+      rv = VNET_API_ERROR_NO_SUCH_ENTRY;
+      goto out;
+    }
+
+  bd_index = p[0];
+
+  bd_set_flags (vm, bd_index, flags, mp->is_set);
+
+out:
+  /* *INDENT-OFF* */
+  REPLY_MACRO2(VL_API_BRIDGE_FLAGS_REPLY,
+  ({
+    rmp->resulting_feature_bitmap = ntohl(flags);
+  }));
+  /* *INDENT-ON* */
+}
 
 /*
- * vpe_api_hookup
+ * l2_api_hookup
  * Add vpe's API message handlers to the table.
  * vlib has alread mapped shared memory and
  * added the client registration handlers.
diff --git a/src/vnet/mpls/mpls.api b/src/vnet/mpls/mpls.api
new file mode 100644
index 00000000000..2e3bfaf53f5
--- /dev/null
+++ b/src/vnet/mpls/mpls.api
@@ -0,0 +1,246 @@
+/*
+ * 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.
+ */
+
+/** \brief Bind/Unbind an MPLS local label to an IP prefix. i.e. create
+           a per-prefix label entry.
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param mb_mpls_table_id - The MPLS table-id the MPLS entry will be added in
+    @param mb_label - The MPLS label value to bind
+    @param mb_ip_table_id - The IP table-id of the IP prefix to bind to.
+    @param mb_create_table_if_needed - Create either/both tables if required.
+    @param mb_is_bind - Bind or unbind
+    @param mb_is_ip4 - The prefix to bind to is IPv4
+    @param mb_address_length - Length of IP prefix
+    @param mb_address[16] - IP prefix/
+*/
+define mpls_ip_bind_unbind
+{
+  u32 client_index;
+  u32 context;
+  u32 mb_mpls_table_id;
+  u32 mb_label;
+  u32 mb_ip_table_id;
+  u8 mb_create_table_if_needed;
+  u8 mb_is_bind;
+  u8 mb_is_ip4;
+  u8 mb_address_length;
+  u8 mb_address[16];
+};
+
+/** \brief Reply for MPLS IP bind/unbind request
+    @param context - returned sender context, to match reply w/ request
+    @param retval - return code
+*/
+define mpls_ip_bind_unbind_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief MPLS tunnel Add / del route
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param mt_is_add - Is this a route add or delete
+    @param mt_sw_if_index - The SW interface index of the tunnel to delete
+    @param mt_next_hop_proto_is_ip4 - The next-hop is IPV4
+    @param mt_next_hop_weight - The weight, for UCMP
+    @param mt_next_hop[16] - the nextop address
+    @param mt_next_hop_sw_if_index - the next-hop SW interface
+    @param mt_next_hop_table_id - the next-hop table-id (if appropriate)
+    @param mt_next_hop_n_out_labels - the number of next-hop output labels
+    @param mt_next_hop_out_label_stack - the next-hop output label stack,  outer most first
+*/
+define mpls_tunnel_add_del
+{
+  u32 client_index;
+  u32 context;
+  u32 mt_sw_if_index;
+  u8 mt_is_add;
+  u8 mt_l2_only;
+  u8 mt_next_hop_proto_is_ip4;
+  u8 mt_next_hop_weight;
+  u8 mt_next_hop[16];
+  u8 mt_next_hop_n_out_labels;
+  u32 mt_next_hop_sw_if_index;
+  u32 mt_next_hop_table_id;
+  u32 mt_next_hop_out_label_stack[mt_next_hop_n_out_labels];
+};
+
+/** \brief Reply for MPLS tunnel add / del request
+    @param context - returned sender context, to match reply w/ request
+    @param retval - return code
+    @param sw_if_index - SW interface index of the tunnel created
+*/
+define mpls_tunnel_add_del_reply
+{
+  u32 context;
+  i32 retval;
+  u32 sw_if_index;
+};
+
+/** \brief Dump mpls eth tunnel table
+    @param client_index - opaque cookie to identify the sender
+    @param tunnel_index - eth tunnel identifier or -1 in case of all tunnels
+*/
+define mpls_tunnel_dump
+{
+  u32 client_index;
+  u32 context;
+  i32 tunnel_index;
+};
+
+/** \brief mpls eth tunnel operational state response
+    @param tunnel_index - eth tunnel identifier
+    @param intfc_address - interface ipv4 addr
+    @param mask_width - interface ipv4 addr mask
+    @param hw_if_index - interface id
+    @param l2_only -
+    @param tunnel_dst_mac -
+    @param tx_sw_if_index -
+    @param encap_index - reference to mpls label table
+    @param nlabels - number of resolved labels
+    @param labels - resolved labels
+*/
+define mpls_tunnel_details
+{
+  u32 context;
+  u32 tunnel_index;
+  u8 mt_l2_only;
+  u8 mt_sw_if_index;
+  u8 mt_next_hop_proto_is_ip4;
+  u8 mt_next_hop[16];
+  u32 mt_next_hop_sw_if_index;
+  u32 mt_next_hop_table_id;
+  u32 mt_next_hop_n_labels;
+  u32 mt_next_hop_out_labels[mt_next_hop_n_labels];
+};
+
+/** \brief MPLS Route Add / del route
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param mr_label - The MPLS label value
+    @param mr_eos - The End of stack bit
+    @param mr_table_id - The MPLS table-id the route is added in
+    @param mr_classify_table_index - If this is a classify route, 
+                                     this is the classify table index
+    @param  mr_create_table_if_needed - If the MPLS or IP tables do not exist,
+                                        create them
+    @param mr_is_add - Is this a route add or delete
+    @param mr_is_classify - Is this route result a classify
+    @param mr_is_multipath - Is this route update a multipath - i.e. is this
+                             a path addition to an existing route
+    @param mr_is_resolve_host - Recurse resolution constraint via a host prefix
+    @param mr_is_resolve_attached - Recurse resolution constraint via attached prefix
+    @param mr_next_hop_proto_is_ip4 - The next-hop is IPV4
+    @param mr_next_hop_weight - The weight, for UCMP
+    @param mr_next_hop[16] - the nextop address
+    @param mr_next_hop_sw_if_index - the next-hop SW interface
+    @param mr_next_hop_table_id - the next-hop table-id (if appropriate)
+    @param mr_next_hop_n_out_labels - the number of labels in the label stack
+    @param mr_next_hop_out_label_stack - the next-hop output label stack, outer most first
+    @param next_hop_via_label - The next-hop is a resolved via a local label
+*/
+define mpls_route_add_del
+{
+  u32 client_index;
+  u32 context;
+  u32 mr_label;
+  u8 mr_eos;
+  u32 mr_table_id;
+  u32 mr_classify_table_index;
+  u8 mr_create_table_if_needed;
+  u8 mr_is_add;
+  u8 mr_is_classify;
+  u8 mr_is_multipath;
+  u8 mr_is_resolve_host;
+  u8 mr_is_resolve_attached;
+  u8 mr_next_hop_proto_is_ip4;
+  u8 mr_next_hop_weight;
+  u8 mr_next_hop[16];
+  u8 mr_next_hop_n_out_labels;
+  u32 mr_next_hop_sw_if_index;
+  u32 mr_next_hop_table_id;
+  u32 mr_next_hop_via_label;
+  u32 mr_next_hop_out_label_stack[mr_next_hop_n_out_labels];
+};
+
+/** \brief Reply for MPLS route add / del request
+    @param context - returned sender context, to match reply w/ request
+    @param retval - return code
+*/
+define mpls_route_add_del_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief FIB path
+    @param sw_if_index - index of the interface
+    @param weight - The weight, for UCMP
+    @param is_local - local if non-zero, else remote
+    @param is_drop - Drop the packet
+    @param is_unreach - Drop the packet and rate limit send ICMP unreachable
+    @param is_prohibit - Drop the packet and rate limit send ICMP prohibited
+    @param afi - the afi of the next hop, IP46_TYPE_IP4=1, IP46_TYPE_IP6=2
+    @param next_hop[16] - the next hop address
+
+    WARNING: this type is replicated, pending cleanup completion
+
+*/
+typeonly manual_print manual_endian define fib_path2
+{
+  u32 sw_if_index;
+  u32 weight;
+  u8 is_local;
+  u8 is_drop;
+  u8 is_unreach;
+  u8 is_prohibit;
+  u8 afi;
+  u8 next_hop[16];
+};
+
+/** \brief Dump MPLS fib table
+    @param client_index - opaque cookie to identify the sender
+*/
+define mpls_fib_dump
+{
+  u32 client_index;
+  u32 context;
+};
+
+/** \brief mpls FIB table response
+    @param table_id - MPLS fib table id
+    @param s_bit - End-of-stack bit
+    @param label - MPLS label value
+    @param count - the number of fib_path in path
+    @param path  - array of of fib_path structures
+*/
+manual_endian manual_print define mpls_fib_details
+{
+  u32 context;
+  u32 table_id;
+  u8  eos_bit;
+  u32 label;
+  u32 count;
+  vl_api_fib_path2_t path[count];
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
+ 
\ No newline at end of file
diff --git a/src/vnet/mpls/mpls_api.c b/src/vnet/mpls/mpls_api.c
new file mode 100644
index 00000000000..ebbeba698a1
--- /dev/null
+++ b/src/vnet/mpls/mpls_api.c
@@ -0,0 +1,497 @@
+/*
+ *------------------------------------------------------------------
+ * mpls_api.c - mpls 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/mpls/mpls.h>
+#include <vnet/mpls/mpls_tunnel.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/fib_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                                 \
+_(MPLS_IP_BIND_UNBIND, mpls_ip_bind_unbind)                 \
+_(MPLS_ROUTE_ADD_DEL, mpls_route_add_del)                   \
+_(MPLS_TUNNEL_ADD_DEL, mpls_tunnel_add_del)                 \
+_(MPLS_TUNNEL_DUMP, mpls_tunnel_dump)                       \
+_(MPLS_TUNNEL_DETAILS, mpls_tunnel_details)                 \
+_(MPLS_FIB_DUMP, mpls_fib_dump)                             \
+_(MPLS_FIB_DETAILS, mpls_fib_details)
+
+extern void stats_dslock_with_hint (int hint, int tag);
+extern void stats_dsunlock (void);
+
+static int
+mpls_ip_bind_unbind_handler (vnet_main_t * vnm,
+			     vl_api_mpls_ip_bind_unbind_t * mp)
+{
+  u32 mpls_fib_index, ip_fib_index;
+
+  mpls_fib_index =
+    fib_table_find (FIB_PROTOCOL_MPLS, ntohl (mp->mb_mpls_table_id));
+
+  if (~0 == mpls_fib_index)
+    {
+      if (mp->mb_create_table_if_needed)
+	{
+	  mpls_fib_index =
+	    fib_table_find_or_create_and_lock (FIB_PROTOCOL_MPLS,
+					       ntohl (mp->mb_mpls_table_id));
+	}
+      else
+	return VNET_API_ERROR_NO_SUCH_FIB;
+    }
+
+  ip_fib_index = fib_table_find ((mp->mb_is_ip4 ?
+				  FIB_PROTOCOL_IP4 :
+				  FIB_PROTOCOL_IP6),
+				 ntohl (mp->mb_ip_table_id));
+  if (~0 == ip_fib_index)
+    return VNET_API_ERROR_NO_SUCH_FIB;
+
+  fib_prefix_t pfx = {
+    .fp_len = mp->mb_address_length,
+  };
+
+  if (mp->mb_is_ip4)
+    {
+      pfx.fp_proto = FIB_PROTOCOL_IP4;
+      clib_memcpy (&pfx.fp_addr.ip4, mp->mb_address,
+		   sizeof (pfx.fp_addr.ip4));
+    }
+  else
+    {
+      pfx.fp_proto = FIB_PROTOCOL_IP6;
+      clib_memcpy (&pfx.fp_addr.ip6, mp->mb_address,
+		   sizeof (pfx.fp_addr.ip6));
+    }
+
+  if (mp->mb_is_bind)
+    fib_table_entry_local_label_add (ip_fib_index, &pfx,
+				     ntohl (mp->mb_label));
+  else
+    fib_table_entry_local_label_remove (ip_fib_index, &pfx,
+					ntohl (mp->mb_label));
+
+  return (0);
+}
+
+void
+vl_api_mpls_ip_bind_unbind_t_handler (vl_api_mpls_ip_bind_unbind_t * mp)
+{
+  vl_api_mpls_ip_bind_unbind_reply_t *rmp;
+  vnet_main_t *vnm;
+  int rv;
+
+  vnm = vnet_get_main ();
+  vnm->api_errno = 0;
+
+  rv = mpls_ip_bind_unbind_handler (vnm, mp);
+  rv = (rv == 0) ? vnm->api_errno : rv;
+
+  REPLY_MACRO (VL_API_MPLS_IP_BIND_UNBIND_REPLY);
+}
+
+static int
+mpls_route_add_del_t_handler (vnet_main_t * vnm,
+			      vl_api_mpls_route_add_del_t * mp)
+{
+  u32 fib_index, next_hop_fib_index;
+  mpls_label_t *label_stack = NULL;
+  int rv, ii, n_labels;;
+
+  fib_prefix_t pfx = {
+    .fp_len = 21,
+    .fp_proto = FIB_PROTOCOL_MPLS,
+    .fp_eos = mp->mr_eos,
+    .fp_label = ntohl (mp->mr_label),
+  };
+  if (pfx.fp_eos)
+    {
+      if (mp->mr_next_hop_proto_is_ip4)
+	{
+	  pfx.fp_payload_proto = DPO_PROTO_IP4;
+	}
+      else
+	{
+	  pfx.fp_payload_proto = DPO_PROTO_IP6;
+	}
+    }
+  else
+    {
+      pfx.fp_payload_proto = DPO_PROTO_MPLS;
+    }
+
+  rv = add_del_route_check (FIB_PROTOCOL_MPLS,
+			    mp->mr_table_id,
+			    mp->mr_next_hop_sw_if_index,
+			    dpo_proto_to_fib (pfx.fp_payload_proto),
+			    mp->mr_next_hop_table_id,
+			    mp->mr_create_table_if_needed,
+			    &fib_index, &next_hop_fib_index);
+
+  if (0 != rv)
+    return (rv);
+
+  ip46_address_t nh;
+  memset (&nh, 0, sizeof (nh));
+
+  if (mp->mr_next_hop_proto_is_ip4)
+    memcpy (&nh.ip4, mp->mr_next_hop, sizeof (nh.ip4));
+  else
+    memcpy (&nh.ip6, mp->mr_next_hop, sizeof (nh.ip6));
+
+  n_labels = mp->mr_next_hop_n_out_labels;
+  if (n_labels == 0)
+    ;
+  else if (1 == n_labels)
+    vec_add1 (label_stack, ntohl (mp->mr_next_hop_out_label_stack[0]));
+  else
+    {
+      vec_validate (label_stack, n_labels - 1);
+      for (ii = 0; ii < n_labels; ii++)
+	label_stack[ii] = ntohl (mp->mr_next_hop_out_label_stack[ii]);
+    }
+
+  return (add_del_route_t_handler (mp->mr_is_multipath, mp->mr_is_add, 0,	// mp->is_drop,
+				   0,	// mp->is_unreach,
+				   0,	// mp->is_prohibit,
+				   0,	// mp->is_local,
+				   mp->mr_is_classify,
+				   mp->mr_classify_table_index,
+				   mp->mr_is_resolve_host,
+				   mp->mr_is_resolve_attached,
+				   fib_index, &pfx,
+				   mp->mr_next_hop_proto_is_ip4,
+				   &nh, ntohl (mp->mr_next_hop_sw_if_index),
+				   next_hop_fib_index,
+				   mp->mr_next_hop_weight,
+				   ntohl (mp->mr_next_hop_via_label),
+				   label_stack));
+}
+
+void
+vl_api_mpls_route_add_del_t_handler (vl_api_mpls_route_add_del_t * mp)
+{
+  vl_api_mpls_route_add_del_reply_t *rmp;
+  vnet_main_t *vnm;
+  int rv;
+
+  vnm = vnet_get_main ();
+  vnm->api_errno = 0;
+
+  rv = mpls_route_add_del_t_handler (vnm, mp);
+
+  rv = (rv == 0) ? vnm->api_errno : rv;
+
+  REPLY_MACRO (VL_API_MPLS_ROUTE_ADD_DEL_REPLY);
+}
+
+static void
+vl_api_mpls_tunnel_add_del_t_handler (vl_api_mpls_tunnel_add_del_t * mp)
+{
+  vl_api_mpls_tunnel_add_del_reply_t *rmp;
+  int rv = 0;
+  u32 tunnel_sw_if_index;
+  int ii;
+
+  stats_dslock_with_hint (1 /* release hint */ , 5 /* tag */ );
+
+  if (mp->mt_is_add)
+    {
+      fib_route_path_t rpath, *rpaths = NULL;
+      mpls_label_t *label_stack = NULL;
+
+      memset (&rpath, 0, sizeof (rpath));
+
+      if (mp->mt_next_hop_proto_is_ip4)
+	{
+	  rpath.frp_proto = FIB_PROTOCOL_IP4;
+	  clib_memcpy (&rpath.frp_addr.ip4,
+		       mp->mt_next_hop, sizeof (rpath.frp_addr.ip4));
+	}
+      else
+	{
+	  rpath.frp_proto = FIB_PROTOCOL_IP6;
+	  clib_memcpy (&rpath.frp_addr.ip6,
+		       mp->mt_next_hop, sizeof (rpath.frp_addr.ip6));
+	}
+      rpath.frp_sw_if_index = ntohl (mp->mt_next_hop_sw_if_index);
+
+      for (ii = 0; ii < mp->mt_next_hop_n_out_labels; ii++)
+	vec_add1 (label_stack, ntohl (mp->mt_next_hop_out_label_stack[ii]));
+
+      vec_add1 (rpaths, rpath);
+
+      vnet_mpls_tunnel_add (rpaths, label_stack,
+			    mp->mt_l2_only, &tunnel_sw_if_index);
+      vec_free (rpaths);
+      vec_free (label_stack);
+    }
+  else
+    {
+      tunnel_sw_if_index = ntohl (mp->mt_sw_if_index);
+      vnet_mpls_tunnel_del (tunnel_sw_if_index);
+    }
+
+  stats_dsunlock ();
+
+  /* *INDENT-OFF* */
+  REPLY_MACRO2(VL_API_MPLS_TUNNEL_ADD_DEL_REPLY,
+  ({
+    rmp->sw_if_index = ntohl(tunnel_sw_if_index);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_mpls_tunnel_details_t_handler (vl_api_mpls_tunnel_details_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+typedef struct mpls_tunnel_send_walk_ctx_t_
+{
+  unix_shared_memory_queue_t *q;
+  u32 index;
+  u32 context;
+} mpls_tunnel_send_walk_ctx_t;
+
+static void
+send_mpls_tunnel_entry (u32 mti, void *arg)
+{
+  mpls_tunnel_send_walk_ctx_t *ctx;
+  vl_api_mpls_tunnel_details_t *mp;
+  const mpls_tunnel_t *mt;
+  u32 nlabels;
+
+  ctx = arg;
+
+  if (~0 != ctx->index && mti != ctx->index)
+    return;
+
+  mt = mpls_tunnel_get (mti);
+  nlabels = vec_len (mt->mt_label_stack);
+
+  mp = vl_msg_api_alloc (sizeof (*mp) + nlabels * sizeof (u32));
+  memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_MPLS_TUNNEL_DETAILS);
+  mp->context = ctx->context;
+
+  mp->tunnel_index = ntohl (mti);
+  memcpy (mp->mt_next_hop_out_labels,
+	  mt->mt_label_stack, nlabels * sizeof (u32));
+
+  // FIXME
+
+  vl_msg_api_send_shmem (ctx->q, (u8 *) & mp);
+}
+
+static void
+vl_api_mpls_tunnel_dump_t_handler (vl_api_mpls_tunnel_dump_t * mp)
+{
+  unix_shared_memory_queue_t *q;
+
+  q = vl_api_client_index_to_input_queue (mp->client_index);
+  if (q == 0)
+    return;
+
+  mpls_tunnel_send_walk_ctx_t ctx = {
+    .q = q,
+    .index = ntohl (mp->tunnel_index),
+    .context = mp->context,
+  };
+  mpls_tunnel_walk (send_mpls_tunnel_entry, &ctx);
+}
+
+static void
+vl_api_mpls_fib_details_t_handler (vl_api_mpls_fib_details_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+static void
+vl_api_mpls_fib_details_t_endian (vl_api_mpls_fib_details_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+static void
+vl_api_mpls_fib_details_t_print (vl_api_mpls_fib_details_t * mp)
+{
+  clib_warning ("BUG");
+}
+
+static void
+send_mpls_fib_details (vpe_api_main_t * am,
+		       unix_shared_memory_queue_t * q,
+		       u32 table_id, u32 label, u32 eos,
+		       fib_route_path_encode_t * api_rpaths, u32 context)
+{
+  vl_api_mpls_fib_details_t *mp;
+  fib_route_path_encode_t *api_rpath;
+  vl_api_fib_path2_t *fp;
+  int path_count;
+
+  path_count = vec_len (api_rpaths);
+  mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
+  if (!mp)
+    return;
+  memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = ntohs (VL_API_MPLS_FIB_DETAILS);
+  mp->context = context;
+
+  mp->table_id = htonl (table_id);
+  mp->eos_bit = eos;
+  mp->label = htonl (label);
+
+  mp->count = htonl (path_count);
+  fp = mp->path;
+  vec_foreach (api_rpath, api_rpaths)
+  {
+    memset (fp, 0, sizeof (*fp));
+    fp->weight = htonl (api_rpath->rpath.frp_weight);
+    fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index);
+    copy_fib_next_hop (api_rpath, fp);
+    fp++;
+  }
+
+  vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static void
+vl_api_mpls_fib_dump_t_handler (vl_api_mpls_fib_dump_t * mp)
+{
+  vpe_api_main_t *am = &vpe_api_main;
+  unix_shared_memory_queue_t *q;
+  mpls_main_t *mm = &mpls_main;
+  fib_table_t *fib_table;
+  fib_node_index_t lfei, *lfeip, *lfeis = NULL;
+  mpls_label_t key;
+  fib_prefix_t pfx;
+  u32 fib_index;
+  fib_route_path_encode_t *api_rpaths;
+
+  q = vl_api_client_index_to_input_queue (mp->client_index);
+  if (q == 0)
+    return;
+
+  /* *INDENT-OFF* */
+  pool_foreach (fib_table, mm->fibs,
+  ({
+    hash_foreach(key, lfei, fib_table->mpls.mf_entries,
+    ({
+  vec_add1(lfeis, lfei);
+    }));
+  }));
+  /* *INDENT-ON* */
+  vec_sort_with_function (lfeis, fib_entry_cmp_for_sort);
+
+  vec_foreach (lfeip, lfeis)
+  {
+    fib_entry_get_prefix (*lfeip, &pfx);
+    fib_index = fib_entry_get_fib_index (*lfeip);
+    fib_table = fib_table_get (fib_index, pfx.fp_proto);
+    api_rpaths = NULL;
+    fib_entry_encode (*lfeip, &api_rpaths);
+    send_mpls_fib_details (am, q,
+			   fib_table->ft_table_id,
+			   pfx.fp_label, pfx.fp_eos, api_rpaths, mp->context);
+    vec_free (api_rpaths);
+  }
+
+  vec_free (lfeis);
+}
+
+/*
+ * mpls_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has alread 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_mpls;
+#undef _
+}
+
+static clib_error_t *
+mpls_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 _
+
+  /*
+   * Trace space for 8 MPLS encap labels
+   */
+  am->api_trace_cfg[VL_API_MPLS_TUNNEL_ADD_DEL].size += 8 * sizeof (u32);
+
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  setup_message_id_table (am);
+
+  return 0;
+}
+
+VLIB_API_INIT_FUNCTION (mpls_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/sr/sr.api b/src/vnet/sr/sr.api
new file mode 100644
index 00000000000..3d017ce58b6
--- /dev/null
+++ b/src/vnet/sr/sr.api
@@ -0,0 +1,119 @@
+/*
+ * 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.
+ */
+ 
+/** \brief IPv6 segment routing tunnel add / del request
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param is_add - add the tunnel if non-zero, else delete it
+    @param name[] - tunnel name (len. 64)
+    @param src_address[] -
+    @param dst_address[] -
+    @param dst_mask_width -
+    @param inner_vrf_id -
+    @param outer_vrf_id -
+    @param flags_net_byte_order -
+    @param n_segments -
+    @param n_tags -
+    @param segs_and_tags[] -
+    @param policy_name[] - name of policy to associate this tunnel to (len. 64)
+*/
+define sr_tunnel_add_del
+{
+  u32 client_index;
+  u32 context;
+  u8 is_add;
+  u8 name[64];
+  u8 src_address[16];
+  u8 dst_address[16];
+  u8 dst_mask_width;
+  u32 inner_vrf_id;
+  u32 outer_vrf_id;
+  u16 flags_net_byte_order;
+  u8 n_segments;
+  u8 n_tags;
+  u8 policy_name[64];
+  u8 segs_and_tags[0];
+};
+
+/** \brief IPv6 segment routing tunnel add / del response
+    @param context - sender context, to match reply w/ request
+    @param retval - return value for request
+*/
+define sr_tunnel_add_del_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief IPv6 segment routing policy add / del request
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param is_add - add the tunnel if non-zero, else delete it
+    @param name[] - policy name (len. 64)
+    @param tunnel_names[] -
+*/
+define sr_policy_add_del
+{
+  u32 client_index;
+  u32 context;
+  u8 is_add;
+  u8 name[64];
+  u8 tunnel_names[0];
+};
+
+/** \brief IPv6 segment routing policy add / del response
+    @param context - sender context, to match reply w/ request
+    @param retval - return value for request 
+ 
+    
+*/
+define sr_policy_add_del_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief IPv6 segment routing multicast map to policy add / del request
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param is_add - add the tunnel if non-zero, else delete it
+    @param multicast_address[] - IP6 multicast address
+    @param policy_name[] = policy name (len.64)
+*/
+define sr_multicast_map_add_del
+{
+  u32 client_index;
+  u32 context;
+  u8 is_add;
+  u8 multicast_address[16];
+  u8 policy_name[64];
+};
+
+/** \brief IPv6 segment routing multicast map to policy add / del response
+    @param context - sender context, to match reply w/ request
+    @param retval - return value for request
+*/
+define sr_multicast_map_add_del_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/*
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
+ 
\ No newline at end of file
diff --git a/src/vnet/sr/sr_api.c b/src/vnet/sr/sr_api.c
new file mode 100644
index 00000000000..6c6eb9b6449
--- /dev/null
+++ b/src/vnet/sr/sr_api.c
@@ -0,0 +1,279 @@
+/*
+ *------------------------------------------------------------------
+ * sr_api.c - ipv6 segment routing 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/feature/feature.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                             \
+_(SR_MULTICAST_MAP_ADD_DEL, sr_multicast_map_add_del)
+
+static void vl_api_sr_tunnel_add_del_t_handler
+  (vl_api_sr_tunnel_add_del_t * mp)
+{
+#if IP6SR == 0
+  clib_warning ("unimplemented");
+#else
+  ip6_sr_add_del_tunnel_args_t _a, *a = &_a;
+  int rv = 0;
+  vl_api_sr_tunnel_add_del_reply_t *rmp;
+  ip6_address_t *segments = 0, *seg;
+  ip6_address_t *tags = 0, *tag;
+  ip6_address_t *this_address;
+  int i;
+
+  if (mp->n_segments == 0)
+    {
+      rv = -11;
+      goto out;
+    }
+
+  memset (a, 0, sizeof (*a));
+  a->src_address = (ip6_address_t *) & mp->src_address;
+  a->dst_address = (ip6_address_t *) & mp->dst_address;
+  a->dst_mask_width = mp->dst_mask_width;
+  a->flags_net_byte_order = mp->flags_net_byte_order;
+  a->is_del = (mp->is_add == 0);
+  a->rx_table_id = ntohl (mp->outer_vrf_id);
+  a->tx_table_id = ntohl (mp->inner_vrf_id);
+
+  a->name = format (0, "%s", mp->name);
+  if (!(vec_len (a->name)))
+    a->name = 0;
+
+  a->policy_name = format (0, "%s", mp->policy_name);
+  if (!(vec_len (a->policy_name)))
+    a->policy_name = 0;
+
+  /* Yank segments and tags out of the API message */
+  this_address = (ip6_address_t *) mp->segs_and_tags;
+  for (i = 0; i < mp->n_segments; i++)
+    {
+      vec_add2 (segments, seg, 1);
+      clib_memcpy (seg->as_u8, this_address->as_u8, sizeof (*this_address));
+      this_address++;
+    }
+  for (i = 0; i < mp->n_tags; i++)
+    {
+      vec_add2 (tags, tag, 1);
+      clib_memcpy (tag->as_u8, this_address->as_u8, sizeof (*this_address));
+      this_address++;
+    }
+
+  a->segments = segments;
+  a->tags = tags;
+
+  rv = ip6_sr_add_del_tunnel (a);
+
+out:
+
+  REPLY_MACRO (VL_API_SR_TUNNEL_ADD_DEL_REPLY);
+#endif
+}
+
+static void vl_api_sr_policy_add_del_t_handler
+  (vl_api_sr_policy_add_del_t * mp)
+{
+#if IP6SR == 0
+  clib_warning ("unimplemented");
+#else
+  ip6_sr_add_del_policy_args_t _a, *a = &_a;
+  int rv = 0;
+  vl_api_sr_policy_add_del_reply_t *rmp;
+  int i;
+
+  memset (a, 0, sizeof (*a));
+  a->is_del = (mp->is_add == 0);
+
+  a->name = format (0, "%s", mp->name);
+  if (!(vec_len (a->name)))
+    {
+      rv = VNET_API_ERROR_NO_SUCH_NODE2;
+      goto out;
+    }
+
+  if (!(mp->tunnel_names[0]))
+    {
+      rv = VNET_API_ERROR_NO_SUCH_NODE2;
+      goto out;
+    }
+
+  // start deserializing tunnel_names
+  int num_tunnels = mp->tunnel_names[0];	//number of tunnels
+  u8 *deser_tun_names = mp->tunnel_names;
+  deser_tun_names += 1;		//moving along
+
+  u8 *tun_name = 0;
+  int tun_name_len = 0;
+
+  for (i = 0; i < num_tunnels; i++)
+    {
+      tun_name_len = *deser_tun_names;
+      deser_tun_names += 1;
+      vec_resize (tun_name, tun_name_len);
+      memcpy (tun_name, deser_tun_names, tun_name_len);
+      vec_add1 (a->tunnel_names, tun_name);
+      deser_tun_names += tun_name_len;
+      tun_name = 0;
+    }
+
+  rv = ip6_sr_add_del_policy (a);
+
+out:
+
+  REPLY_MACRO (VL_API_SR_POLICY_ADD_DEL_REPLY);
+#endif
+}
+
+static void vl_api_sr_multicast_map_add_del_t_handler
+  (vl_api_sr_multicast_map_add_del_t * mp)
+{
+#if IP6SR == 0
+  clib_warning ("unimplemented");
+#else
+  ip6_sr_add_del_multicastmap_args_t _a, *a = &_a;
+  int rv = 0;
+  vl_api_sr_multicast_map_add_del_reply_t *rmp;
+
+  memset (a, 0, sizeof (*a));
+  a->is_del = (mp->is_add == 0);
+
+  a->multicast_address = (ip6_address_t *) & mp->multicast_address;
+  a->policy_name = format (0, "%s", mp->policy_name);
+
+  if (a->multicast_address == 0)
+    {
+      rv = -1;
+      goto out;
+    }
+
+  if (!(a->policy_name))
+    {
+      rv = -2;
+      goto out;
+    }
+
+#if DPDK > 0			/* Cannot call replicate without DPDK */
+  rv = ip6_sr_add_del_multicastmap (a);
+#else
+  clib_warning ("multicast replication without DPDK not implemented");
+  rv = VNET_API_ERROR_UNIMPLEMENTED;
+#endif /* DPDK */
+
+out:
+
+  REPLY_MACRO (VL_API_SR_MULTICAST_MAP_ADD_DEL_REPLY);
+#endif
+}
+
+/*
+ * sr_api_hookup
+ * Add vpe's API message handlers to the table.
+ * vlib has alread 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_sr;
+#undef _
+}
+
+static clib_error_t *
+sr_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 _
+
+  /*
+   * Manually register the sr tunnel add del msg, so we trace
+   * enough bytes to capture a typical segment list
+   */
+  vl_msg_api_set_handlers (VL_API_SR_TUNNEL_ADD_DEL,
+			   "sr_tunnel_add_del",
+			   vl_api_sr_tunnel_add_del_t_handler,
+			   vl_noop_handler,
+			   vl_api_sr_tunnel_add_del_t_endian,
+			   vl_api_sr_tunnel_add_del_t_print, 256, 1);
+
+
+  /*
+   * Manually register the sr policy add del msg, so we trace
+   * enough bytes to capture a typical tunnel name list
+   */
+  vl_msg_api_set_handlers (VL_API_SR_POLICY_ADD_DEL,
+			   "sr_policy_add_del",
+			   vl_api_sr_policy_add_del_t_handler,
+			   vl_noop_handler,
+			   vl_api_sr_policy_add_del_t_endian,
+			   vl_api_sr_policy_add_del_t_print, 256, 1);
+
+  /*
+   * Set up the (msg_name, crc, message-id) table
+   */
+  setup_message_id_table (am);
+
+  return 0;
+}
+
+VLIB_API_INIT_FUNCTION (sr_api_hookup);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/vnet_all_api_h.h b/src/vnet/vnet_all_api_h.h
index d48e1540592..1024f92ce55 100644
--- a/src/vnet/vnet_all_api_h.h
+++ b/src/vnet/vnet_all_api_h.h
@@ -50,6 +50,8 @@
 #include <vnet/ipsec-gre/ipsec_gre.api.h>
 #include <vnet/lisp-cp/lisp.api.h>
 #include <vnet/lisp-gpe/lisp_gpe.api.h>
+#include <vnet/mpls/mpls.api.h>
+#include <vnet/sr/sr.api.h>
 
 /*
  * fd.io coding-style-patch-verification: ON