session: remove deprecated binary apis
[vpp.git] / src / vnet / session / session_api.c
old mode 100644 (file)
new mode 100755 (executable)
index a82dfe0..8ee25a9
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015-2016 Cisco and/or its affiliates.
+ * Copyright (c) 2015-2019 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:
 #include <vnet/vnet.h>
 #include <vlibmemory/api.h>
 #include <vnet/session/application.h>
+#include <vnet/session/application_interface.h>
+#include <vnet/session/application_local.h>
+#include <vnet/session/session_rules_table.h>
+#include <vnet/session/session_table.h>
+#include <vnet/session/session.h>
 
 #include <vnet/vnet_msg_enum.h>
-#include "application_interface.h"
 
 #define vl_typedefs            /* define message structures */
 #include <vnet/vnet_all_api_h.h>
@@ -45,248 +49,471 @@ _(UNBIND_URI, unbind_uri)                                               \
 _(CONNECT_URI, connect_uri)                                             \
 _(DISCONNECT_SESSION, disconnect_session)                               \
 _(DISCONNECT_SESSION_REPLY, disconnect_session_reply)                   \
-_(ACCEPT_SESSION_REPLY, accept_session_reply)                           \
-_(RESET_SESSION_REPLY, reset_session_reply)                            \
-_(BIND_SOCK, bind_sock)                                                \
+_(BIND_SOCK, bind_sock)                                                        \
 _(UNBIND_SOCK, unbind_sock)                                             \
 _(CONNECT_SOCK, connect_sock)                                                  \
 _(SESSION_ENABLE_DISABLE, session_enable_disable)                      \
+_(APP_NAMESPACE_ADD_DEL, app_namespace_add_del)                                \
+_(SESSION_RULE_ADD_DEL, session_rule_add_del)                          \
+_(SESSION_RULES_DUMP, session_rules_dump)                              \
+_(APPLICATION_TLS_CERT_ADD, application_tls_cert_add)                  \
+_(APPLICATION_TLS_KEY_ADD, application_tls_key_add)                    \
+_(APP_WORKER_ADD_DEL, app_worker_add_del)                              \
 
 static int
-send_add_segment_callback (u32 api_client_index, const u8 * segment_name,
-                          u32 segment_size)
+session_send_fds (vl_api_registration_t * reg, int fds[], int n_fds)
 {
+  clib_error_t *error;
+  if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
+    {
+      clib_warning ("can't send memfd fd");
+      return -1;
+    }
+  error = vl_api_send_fd_msg (reg, fds, n_fds);
+  if (error)
+    {
+      clib_error_report (error);
+      return -1;
+    }
+  return 0;
+}
+
+static int
+send_add_segment_callback (u32 api_client_index, u64 segment_handle)
+{
+  int fds[SESSION_N_FD_TYPE], n_fds = 0;
   vl_api_map_another_segment_t *mp;
-  unix_shared_memory_queue_t *q;
+  svm_fifo_segment_private_t *fs;
+  vl_api_registration_t *reg;
+  ssvm_private_t *sp;
+  u8 fd_flags = 0;
 
-  q = vl_api_client_index_to_input_queue (api_client_index);
+  reg = vl_mem_api_client_index_to_registration (api_client_index);
+  if (!reg)
+    {
+      clib_warning ("no api registration for client: %u", api_client_index);
+      return -1;
+    }
 
-  if (!q)
-    return -1;
+  fs = segment_manager_get_segment_w_handle (segment_handle);
+  sp = &fs->ssvm;
+  if (ssvm_type (sp) == SSVM_SEGMENT_MEMFD)
+    {
+      if (vl_api_registration_file_index (reg) == VL_API_INVALID_FI)
+       {
+         clib_warning ("can't send memfd fd");
+         return -1;
+       }
 
-  mp = vl_msg_api_alloc (sizeof (*mp));
-  memset (mp, 0, sizeof (*mp));
+      fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
+      fds[n_fds] = sp->fd;
+      n_fds += 1;
+    }
+
+  mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
+  clib_memset (mp, 0, sizeof (*mp));
   mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_MAP_ANOTHER_SEGMENT);
-  mp->segment_size = segment_size;
-  strncpy ((char *) mp->segment_name, (char *) segment_name,
+  mp->segment_size = sp->ssvm_size;
+  mp->fd_flags = fd_flags;
+  mp->segment_handle = clib_host_to_net_u64 (segment_handle);
+  strncpy ((char *) mp->segment_name, (char *) sp->name,
           sizeof (mp->segment_name) - 1);
 
-  vl_msg_api_send_shmem (q, (u8 *) & mp);
+  vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
+
+  if (n_fds)
+    return session_send_fds (reg, fds, n_fds);
 
   return 0;
 }
 
 static int
-send_session_accept_callback (stream_session_t * s)
+send_del_segment_callback (u32 api_client_index, u64 segment_handle)
 {
-  vl_api_accept_session_t *mp;
-  unix_shared_memory_queue_t *q, *vpp_queue;
-  application_t *server = application_get (s->app_index);
-  transport_connection_t *tc;
-  transport_proto_vft_t *tp_vft;
-  stream_session_t *listener;
-
-  q = vl_api_client_index_to_input_queue (server->api_client_index);
-  vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
-
-  if (!q)
-    return -1;
-
-  mp = vl_msg_api_alloc (sizeof (*mp));
-  memset (mp, 0, sizeof (*mp));
+  vl_api_unmap_segment_t *mp;
+  vl_api_registration_t *reg;
 
-  mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_ACCEPT_SESSION);
+  reg = vl_mem_api_client_index_to_registration (api_client_index);
+  if (!reg)
+    {
+      clib_warning ("no registration: %u", api_client_index);
+      return -1;
+    }
 
-  listener = listen_session_get (s->session_type, s->listener_index);
-  tp_vft = session_get_transport_vft (s->session_type);
-  tc = tp_vft->get_connection (s->connection_index, s->thread_index);
-  mp->listener_handle = listen_session_get_handle (listener);
-  mp->handle = stream_session_handle (s);
-  mp->server_rx_fifo = (u64) s->server_rx_fifo;
-  mp->server_tx_fifo = (u64) s->server_tx_fifo;
-  mp->vpp_event_queue_address = (u64) vpp_queue;
-  mp->port = tc->rmt_port;
-  mp->is_ip4 = tc->is_ip4;
-  clib_memcpy (&mp->ip, &tc->rmt_ip, sizeof (tc->rmt_ip));
-  vl_msg_api_send_shmem (q, (u8 *) & mp);
+  mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
+  clib_memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_UNMAP_SEGMENT);
+  mp->segment_handle = clib_host_to_net_u64 (segment_handle);
+  vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
 
   return 0;
 }
 
-static void
-send_session_disconnect_callback (stream_session_t * s)
+static int
+send_app_cut_through_registration_add (u32 api_client_index,
+                                      u32 wrk_map_index, u64 mq_addr,
+                                      u64 peer_mq_addr)
 {
-  vl_api_disconnect_session_t *mp;
-  unix_shared_memory_queue_t *q;
-  application_t *app = application_get (s->app_index);
+  vl_api_app_cut_through_registration_add_t *mp;
+  vl_api_registration_t *reg;
+  svm_msg_q_t *mq, *peer_mq;
+  int fds[2];
 
-  q = vl_api_client_index_to_input_queue (app->api_client_index);
+  reg = vl_mem_api_client_index_to_registration (api_client_index);
+  if (!reg)
+    {
+      clib_warning ("no registration: %u", api_client_index);
+      return -1;
+    }
 
-  if (!q)
-    return;
+  mp = vl_mem_api_alloc_as_if_client_w_reg (reg, sizeof (*mp));
+  clib_memset (mp, 0, sizeof (*mp));
+  mp->_vl_msg_id =
+    clib_host_to_net_u16 (VL_API_APP_CUT_THROUGH_REGISTRATION_ADD);
 
-  mp = vl_msg_api_alloc (sizeof (*mp));
-  memset (mp, 0, sizeof (*mp));
-  mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SESSION);
-  mp->handle = stream_session_handle (s);
-  vl_msg_api_send_shmem (q, (u8 *) & mp);
-}
+  mp->evt_q_address = mq_addr;
+  mp->peer_evt_q_address = peer_mq_addr;
+  mp->wrk_index = wrk_map_index;
 
-static void
-send_session_reset_callback (stream_session_t * s)
-{
-  vl_api_reset_session_t *mp;
-  unix_shared_memory_queue_t *q;
-  application_t *app = application_get (s->app_index);
+  mq = uword_to_pointer (mq_addr, svm_msg_q_t *);
+  peer_mq = uword_to_pointer (peer_mq_addr, svm_msg_q_t *);
 
-  q = vl_api_client_index_to_input_queue (app->api_client_index);
+  if (svm_msg_q_get_producer_eventfd (mq) != -1)
+    {
+      mp->fd_flags |= SESSION_FD_F_MQ_EVENTFD;
+      mp->n_fds = 2;
+      /* app will overwrite exactly the fds we pass here. So
+       * when we swap mq with peer_mq (accept vs connect) the
+       * fds will still be valid */
+      fds[0] = svm_msg_q_get_consumer_eventfd (mq);
+      fds[1] = svm_msg_q_get_producer_eventfd (peer_mq);
+    }
 
-  if (!q)
-    return;
+  vl_msg_api_send_shmem (reg->vl_input_queue, (u8 *) & mp);
 
-  mp = vl_msg_api_alloc (sizeof (*mp));
-  memset (mp, 0, sizeof (*mp));
-  mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_RESET_SESSION);
-  mp->handle = stream_session_handle (s);
-  vl_msg_api_send_shmem (q, (u8 *) & mp);
+  if (mp->n_fds != 0)
+    session_send_fds (reg, fds, mp->n_fds);
+
+  return 0;
 }
 
 static int
-send_session_connected_callback (u32 app_index, u32 api_context,
-                                stream_session_t * s, u8 is_fail)
+mq_try_lock_and_alloc_msg (svm_msg_q_t * app_mq, svm_msg_q_msg_t * msg)
 {
-  vl_api_connect_uri_reply_t *mp;
-  unix_shared_memory_queue_t *q;
-  application_t *app;
-  unix_shared_memory_queue_t *vpp_queue;
+  int rv;
+  u8 try = 0;
+  while (try < 100)
+    {
+      rv = svm_msg_q_lock_and_alloc_msg_w_ring (app_mq,
+                                               SESSION_MQ_CTRL_EVT_RING,
+                                               SVM_Q_NOWAIT, msg);
+      if (!rv)
+       return 0;
+      try++;
+      usleep (1);
+    }
+  clib_warning ("failed to alloc msg");
+  return -1;
+}
 
-  app = application_get (app_index);
-  q = vl_api_client_index_to_input_queue (app->api_client_index);
+static int
+mq_send_session_accepted_cb (session_t * s)
+{
+  app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
+  svm_msg_q_msg_t _msg, *msg = &_msg;
+  svm_msg_q_t *vpp_queue, *app_mq;
+  transport_connection_t *tc;
+  session_t *listener;
+  session_accepted_msg_t *mp;
+  session_event_t *evt;
+  application_t *app;
+  app_listener_t *al;
 
-  if (!q)
+  app = application_get (app_wrk->app_index);
+  app_mq = app_wrk->event_queue;
+  if (mq_try_lock_and_alloc_msg (app_mq, msg))
     return -1;
 
-  mp = vl_msg_api_alloc (sizeof (*mp));
-  mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_CONNECT_URI_REPLY);
-  mp->context = api_context;
-  if (!is_fail)
+  evt = svm_msg_q_msg_data (app_mq, msg);
+  clib_memset (evt, 0, sizeof (*evt));
+  evt->event_type = SESSION_CTRL_EVT_ACCEPTED;
+  mp = (session_accepted_msg_t *) evt->data;
+  clib_memset (mp, 0, sizeof (*mp));
+  mp->context = app->app_index;
+  mp->server_rx_fifo = pointer_to_uword (s->rx_fifo);
+  mp->server_tx_fifo = pointer_to_uword (s->tx_fifo);
+  mp->segment_handle = session_segment_handle (s);
+
+  if (session_has_transport (s))
     {
-      vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
-      mp->server_rx_fifo = (u64) s->server_rx_fifo;
-      mp->server_tx_fifo = (u64) s->server_tx_fifo;
-      mp->handle = stream_session_handle (s);
-      mp->vpp_event_queue_address = (u64) vpp_queue;
-      mp->retval = 0;
+      listener = listen_session_get (s->listener_index);
+      al = app_listener_get (app, listener->al_index);
+      mp->listener_handle = app_listener_handle (al);
+      if (application_is_proxy (app))
+       {
+         listener =
+           app_worker_first_listener (app_wrk, session_get_fib_proto (s),
+                                      session_get_transport_proto (s));
+         if (listener)
+           mp->listener_handle = listen_session_get_handle (listener);
+       }
+      vpp_queue = session_main_get_vpp_event_queue (s->thread_index);
+      mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
+      mp->handle = session_handle (s);
+      tc = transport_get_connection (session_get_transport_proto (s),
+                                    s->connection_index, s->thread_index);
+      mp->port = tc->rmt_port;
+      mp->is_ip4 = tc->is_ip4;
+      clib_memcpy_fast (&mp->ip, &tc->rmt_ip, sizeof (tc->rmt_ip));
     }
   else
     {
-      mp->retval = VNET_API_ERROR_SESSION_CONNECT_FAIL;
+      u8 main_thread = vlib_num_workers ()? 1 : 0;
+      ct_connection_t *ct;
+
+      ct = (ct_connection_t *) session_get_transport (s);
+      send_app_cut_through_registration_add (app_wrk->api_client_index,
+                                            app_wrk->wrk_map_index,
+                                            ct->server_evt_q,
+                                            ct->client_evt_q);
+
+      listener = listen_session_get (s->listener_index);
+      al = app_listener_get (app, listener->al_index);
+      mp->listener_handle = app_listener_handle (al);
+      mp->is_ip4 = session_type_is_ip4 (listener->session_type);
+      mp->handle = session_handle (s);
+      mp->port = ct->c_rmt_port;
+      vpp_queue = session_main_get_vpp_event_queue (main_thread);
+      mp->vpp_event_queue_address = pointer_to_uword (vpp_queue);
+      mp->client_event_queue_address = ct->client_evt_q;
+      mp->server_event_queue_address = ct->server_evt_q;
     }
+  svm_msg_q_add_and_unlock (app_mq, msg);
 
-  vl_msg_api_send_shmem (q, (u8 *) & mp);
+  return 0;
+}
 
-  /* Remove client if connect failed */
-  if (!is_fail)
-    {
-      s->session_state = SESSION_STATE_READY;
-    }
+static inline void
+mq_send_session_close_evt (app_worker_t * app_wrk, session_handle_t sh,
+                          session_evt_type_t evt_type)
+{
+  svm_msg_q_msg_t _msg, *msg = &_msg;
+  session_disconnected_msg_t *mp;
+  svm_msg_q_t *app_mq;
+  session_event_t *evt;
 
-  return 0;
+  app_mq = app_wrk->event_queue;
+  if (mq_try_lock_and_alloc_msg (app_mq, msg))
+    return;
+  evt = svm_msg_q_msg_data (app_mq, msg);
+  clib_memset (evt, 0, sizeof (*evt));
+  evt->event_type = evt_type;
+  mp = (session_disconnected_msg_t *) evt->data;
+  mp->handle = sh;
+  mp->context = app_wrk->api_client_index;
+  svm_msg_q_add_and_unlock (app_mq, msg);
 }
 
-/**
- * Redirect a connect_uri message to the indicated server.
- * Only sent if the server has bound the related port with
- * URI_OPTIONS_FLAGS_USE_FIFO
- */
-static int
-redirect_connect_callback (u32 server_api_client_index, void *mp_arg)
+static inline void
+mq_notify_close_subscribers (u32 app_index, session_handle_t sh,
+                            svm_fifo_t * f, session_evt_type_t evt_type)
 {
-  vl_api_connect_uri_t *mp = mp_arg;
-  unix_shared_memory_queue_t *server_q, *client_q;
-  vlib_main_t *vm = vlib_get_main ();
-  f64 timeout = vlib_time_now (vm) + 0.5;
+  app_worker_t *app_wrk;
   application_t *app;
-  int rv = 0;
+  int i;
 
-  server_q = vl_api_client_index_to_input_queue (server_api_client_index);
+  app = application_get (app_index);
+  if (!app)
+    return;
 
-  if (!server_q)
+  for (i = 0; i < f->n_subscribers; i++)
     {
-      rv = VNET_API_ERROR_INVALID_VALUE;
-      goto out;
+      if (!(app_wrk = application_get_worker (app, f->subscribers[i])))
+       continue;
+      mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_DISCONNECTED);
     }
+}
+
+static void
+mq_send_session_disconnected_cb (session_t * s)
+{
+  app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
+  session_handle_t sh = session_handle (s);
+
+  mq_send_session_close_evt (app_wrk, session_handle (s),
+                            SESSION_CTRL_EVT_DISCONNECTED);
 
-  client_q = vl_api_client_index_to_input_queue (mp->client_index);
-  if (!client_q)
+  if (svm_fifo_n_subscribers (s->rx_fifo))
+    mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo,
+                                SESSION_CTRL_EVT_DISCONNECTED);
+}
+
+static void
+mq_send_session_reset_cb (session_t * s)
+{
+  app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
+  session_handle_t sh = session_handle (s);
+
+  mq_send_session_close_evt (app_wrk, sh, SESSION_CTRL_EVT_RESET);
+
+  if (svm_fifo_n_subscribers (s->rx_fifo))
+    mq_notify_close_subscribers (app_wrk->app_index, sh, s->rx_fifo,
+                                SESSION_CTRL_EVT_RESET);
+}
+
+static int
+mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
+                             session_t * s, u8 is_fail)
+{
+  svm_msg_q_msg_t _msg, *msg = &_msg;
+  session_connected_msg_t *mp;
+  svm_msg_q_t *vpp_mq, *app_mq;
+  transport_connection_t *tc;
+  app_worker_t *app_wrk;
+  session_event_t *evt;
+
+  app_wrk = app_worker_get (app_wrk_index);
+  app_mq = app_wrk->event_queue;
+  if (!app_mq)
     {
-      rv = VNET_API_ERROR_INVALID_VALUE_2;
-      goto out;
+      clib_warning ("app %u with api index: %u not attached",
+                   app_wrk->app_index, app_wrk->api_client_index);
+      return -1;
     }
 
-  /* Tell the server the client's API queue address, so it can reply */
-  mp->client_queue_address = (u64) client_q;
-  app = application_lookup (mp->client_index);
-  mp->options[SESSION_OPTIONS_RX_FIFO_SIZE] = app->sm_properties.rx_fifo_size;
-  mp->options[SESSION_OPTIONS_TX_FIFO_SIZE] = app->sm_properties.tx_fifo_size;
+  if (mq_try_lock_and_alloc_msg (app_mq, msg))
+    return -1;
 
-  /*
-   * Bounce message handlers MUST NOT block the data-plane.
-   * Spin waiting for the queue lock, but
-   */
+  evt = svm_msg_q_msg_data (app_mq, msg);
+  clib_memset (evt, 0, sizeof (*evt));
+  evt->event_type = SESSION_CTRL_EVT_CONNECTED;
+  mp = (session_connected_msg_t *) evt->data;
+  clib_memset (mp, 0, sizeof (*mp));
+  mp->context = api_context;
+
+  if (is_fail)
+    goto done;
 
-  while (vlib_time_now (vm) < timeout)
+  if (session_has_transport (s))
     {
-      rv =
-       unix_shared_memory_queue_add (server_q, (u8 *) & mp, 1 /*nowait */ );
-      switch (rv)
+      tc = session_get_transport (s);
+      if (!tc)
        {
-         /* correctly enqueued */
-       case 0:
-         return VNET_CONNECT_REDIRECTED;
-
-         /* continue spinning, wait for pthread_mutex_trylock to work */
-       case -1:
-         continue;
-
-         /* queue stuffed, drop the msg */
-       case -2:
-         rv = VNET_API_ERROR_QUEUE_FULL;
-         goto out;
+         is_fail = 1;
+         goto done;
        }
+
+      vpp_mq = session_main_get_vpp_event_queue (s->thread_index);
+      mp->handle = session_handle (s);
+      mp->vpp_event_queue_address = pointer_to_uword (vpp_mq);
+      clib_memcpy_fast (mp->lcl_ip, &tc->lcl_ip, sizeof (tc->lcl_ip));
+      mp->is_ip4 = tc->is_ip4;
+      mp->lcl_port = tc->lcl_port;
+      mp->server_rx_fifo = pointer_to_uword (s->rx_fifo);
+      mp->server_tx_fifo = pointer_to_uword (s->tx_fifo);
+      mp->segment_handle = session_segment_handle (s);
+    }
+  else
+    {
+      u8 main_thread = vlib_num_workers ()? 1 : 0;
+      ct_connection_t *cct;
+      session_t *ss;
+
+      cct = (ct_connection_t *) session_get_transport (s);
+      send_app_cut_through_registration_add (app_wrk->api_client_index,
+                                            app_wrk->wrk_map_index,
+                                            cct->client_evt_q,
+                                            cct->server_evt_q);
+
+      mp->handle = session_handle (s);
+      mp->lcl_port = cct->c_lcl_port;
+      vpp_mq = session_main_get_vpp_event_queue (main_thread);
+      mp->vpp_event_queue_address = pointer_to_uword (vpp_mq);
+      mp->client_event_queue_address = cct->client_evt_q;
+      mp->server_event_queue_address = cct->server_evt_q;
+      ss = ct_session_get_peer (s);
+      mp->server_rx_fifo = pointer_to_uword (ss->tx_fifo);
+      mp->server_tx_fifo = pointer_to_uword (ss->rx_fifo);
+      mp->segment_handle = session_segment_handle (ss);
     }
-out:
-  /* Dispose of the message */
-  vl_msg_api_free (mp);
-  return rv;
-}
 
-static session_cb_vft_t uri_session_cb_vft = {
-  .session_accept_callback = send_session_accept_callback,
-  .session_disconnect_callback = send_session_disconnect_callback,
-  .session_connected_callback = send_session_connected_callback,
-  .session_reset_callback = send_session_reset_callback,
-  .add_segment_callback = send_add_segment_callback,
-  .redirect_connect_callback = redirect_connect_callback
-};
+done:
+  mp->retval = is_fail ?
+    clib_host_to_net_u32 (VNET_API_ERROR_SESSION_CONNECT) : 0;
+
+  svm_msg_q_add_and_unlock (app_mq, msg);
+  return 0;
+}
 
 static int
-api_session_not_valid (u32 session_index, u32 thread_index)
+mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context,
+                         session_handle_t handle, int rv)
 {
-  session_manager_main_t *smm = vnet_get_session_manager_main ();
-  stream_session_t *pool;
+  svm_msg_q_msg_t _msg, *msg = &_msg;
+  svm_msg_q_t *app_mq, *vpp_evt_q;
+  transport_connection_t *tc;
+  session_bound_msg_t *mp;
+  app_worker_t *app_wrk;
+  session_event_t *evt;
+  app_listener_t *al;
+  session_t *ls = 0;
+
+  app_wrk = app_worker_get (app_wrk_index);
+  app_mq = app_wrk->event_queue;
+  if (!app_mq)
+    {
+      clib_warning ("app %u with api index: %u not attached",
+                   app_wrk->app_index, app_wrk->api_client_index);
+      return -1;
+    }
+
+  if (mq_try_lock_and_alloc_msg (app_mq, msg))
+    return -1;
+
+  evt = svm_msg_q_msg_data (app_mq, msg);
+  clib_memset (evt, 0, sizeof (*evt));
+  evt->event_type = SESSION_CTRL_EVT_BOUND;
+  mp = (session_bound_msg_t *) evt->data;
+  mp->context = api_context;
+
+  if (rv)
+    goto done;
 
-  if (thread_index >= vec_len (smm->sessions))
-    return VNET_API_ERROR_INVALID_VALUE;
+  mp->handle = handle;
+  al = app_listener_get_w_handle (handle);
+  if (al->session_index != SESSION_INVALID_INDEX)
+    ls = app_listener_get_session (al);
+  else
+    ls = app_listener_get_local_session (al);
+  tc = listen_session_get_transport (ls);
+  mp->lcl_port = tc->lcl_port;
+  mp->lcl_is_ip4 = tc->is_ip4;
+  clib_memcpy_fast (mp->lcl_ip, &tc->lcl_ip, sizeof (tc->lcl_ip));
 
-  pool = smm->sessions[thread_index];
+  vpp_evt_q = session_main_get_vpp_event_queue (0);
+  mp->vpp_evt_q = pointer_to_uword (vpp_evt_q);
 
-  if (pool_is_free_index (pool, session_index))
-    return VNET_API_ERROR_INVALID_VALUE_2;
+  if (session_transport_service_type (ls) == TRANSPORT_SERVICE_CL)
+    {
+      mp->rx_fifo = pointer_to_uword (ls->rx_fifo);
+      mp->tx_fifo = pointer_to_uword (ls->tx_fifo);
+    }
 
+done:
+  mp->retval = rv;
+  svm_msg_q_add_and_unlock (app_mq, msg);
   return 0;
 }
 
+static session_cb_vft_t session_mq_cb_vft = {
+  .session_accept_callback = mq_send_session_accepted_cb,
+  .session_disconnect_callback = mq_send_session_disconnected_cb,
+  .session_connected_callback = mq_send_session_connected_cb,
+  .session_reset_callback = mq_send_session_reset_cb,
+  .add_segment_callback = send_add_segment_callback,
+  .del_segment_callback = send_del_segment_callback,
+};
+
 static void
 vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp)
 {
@@ -301,47 +528,98 @@ vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp)
 static void
 vl_api_application_attach_t_handler (vl_api_application_attach_t * mp)
 {
+  int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
   vl_api_application_attach_reply_t *rmp;
+  ssvm_private_t *segp, *evt_q_segment;
   vnet_app_attach_args_t _a, *a = &_a;
-  int rv;
+  vl_api_registration_t *reg;
+  u8 fd_flags = 0;
 
-  if (session_manager_is_enabled () == 0)
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
     }
 
-  STATIC_ASSERT (sizeof (u64) * SESSION_OPTIONS_N_OPTIONS <=
+  STATIC_ASSERT (sizeof (u64) * APP_OPTIONS_N_OPTIONS <=
                 sizeof (mp->options),
                 "Out of options, fix api message definition");
 
-  memset (a, 0, sizeof (*a));
-
+  clib_memset (a, 0, sizeof (*a));
   a->api_client_index = mp->client_index;
   a->options = mp->options;
-  a->session_cb_vft = &uri_session_cb_vft;
+  a->session_cb_vft = &session_mq_cb_vft;
+  if (mp->namespace_id_len > 64)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto done;
+    }
 
-  rv = vnet_application_attach (a);
+  if (mp->namespace_id_len)
+    {
+      vec_validate (a->namespace_id, mp->namespace_id_len - 1);
+      clib_memcpy_fast (a->namespace_id, mp->namespace_id,
+                       mp->namespace_id_len);
+    }
+
+  if ((rv = vnet_application_attach (a)))
+    {
+      clib_warning ("attach returned: %d", rv);
+      vec_free (a->namespace_id);
+      goto done;
+    }
+  vec_free (a->namespace_id);
+
+  /* Send event queues segment */
+  if ((evt_q_segment = session_main_get_evt_q_segment ()))
+    {
+      fd_flags |= SESSION_FD_F_VPP_MQ_SEGMENT;
+      fds[n_fds] = evt_q_segment->fd;
+      n_fds += 1;
+    }
+  /* Send fifo segment fd if needed */
+  if (ssvm_type (a->segment) == SSVM_SEGMENT_MEMFD)
+    {
+      fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
+      fds[n_fds] = a->segment->fd;
+      n_fds += 1;
+    }
+  if (a->options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_EVT_MQ_USE_EVENTFD)
+    {
+      fd_flags |= SESSION_FD_F_MQ_EVENTFD;
+      fds[n_fds] = svm_msg_q_get_producer_eventfd (a->app_evt_q);
+      n_fds += 1;
+    }
 
 done:
+
   /* *INDENT-OFF* */
   REPLY_MACRO2 (VL_API_APPLICATION_ATTACH_REPLY, ({
-    rmp->retval = rv;
     if (!rv)
       {
+       segp = a->segment;
+       rmp->app_index = clib_host_to_net_u32 (a->app_index);
        rmp->segment_name_length = 0;
-       /* $$$$ policy? */
-       rmp->segment_size = a->segment_size;
-       if (a->segment_name_length)
+       rmp->segment_size = segp->ssvm_size;
+       if (vec_len (segp->name))
          {
-           memcpy (rmp->segment_name, a->segment_name,
-                   a->segment_name_length);
-           rmp->segment_name_length = a->segment_name_length;
+           memcpy (rmp->segment_name, segp->name, vec_len (segp->name));
+           rmp->segment_name_length = vec_len (segp->name);
          }
-       rmp->app_event_queue_address = a->app_event_queue_address;
+       rmp->app_event_queue_address = pointer_to_uword (a->app_evt_q);
+       rmp->n_fds = n_fds;
+       rmp->fd_flags = fd_flags;
+       rmp->segment_handle = clib_host_to_net_u64 (a->segment_handle);
       }
   }));
   /* *INDENT-ON* */
+
+  if (n_fds)
+    session_send_fds (reg, fds, n_fds);
 }
 
 static void
@@ -352,7 +630,7 @@ vl_api_application_detach_t_handler (vl_api_application_detach_t * mp)
   vnet_app_detach_args_t _a, *a = &_a;
   application_t *app;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -361,7 +639,8 @@ vl_api_application_detach_t_handler (vl_api_application_detach_t * mp)
   app = application_lookup (mp->client_index);
   if (app)
     {
-      a->app_index = app->index;
+      a->app_index = app->app_index;
+      a->api_client_index = mp->client_index;
       rv = vnet_application_detach (a);
     }
 
@@ -373,11 +652,12 @@ static void
 vl_api_bind_uri_t_handler (vl_api_bind_uri_t * mp)
 {
   vl_api_bind_uri_reply_t *rmp;
-  vnet_bind_args_t _a, *a = &_a;
-  application_t *app;
+  vnet_listen_args_t _a, *a = &_a;
+  application_t *app = 0;
+  app_worker_t *app_wrk;
   int rv;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -386,9 +666,9 @@ vl_api_bind_uri_t_handler (vl_api_bind_uri_t * mp)
   app = application_lookup (mp->client_index);
   if (app)
     {
-      memset (a, 0, sizeof (*a));
+      clib_memset (a, 0, sizeof (*a));
       a->uri = (char *) mp->uri;
-      a->app_index = app->index;
+      a->app_index = app->app_index;
       rv = vnet_bind_uri (a);
     }
   else
@@ -397,7 +677,15 @@ vl_api_bind_uri_t_handler (vl_api_bind_uri_t * mp)
     }
 
 done:
+
   REPLY_MACRO (VL_API_BIND_URI_REPLY);
+
+  if (app)
+    {
+      app_wrk = application_get_worker (app, 0);
+      mq_send_session_bound_cb (app_wrk->wrk_index, mp->context, a->handle,
+                               rv);
+    }
 }
 
 static void
@@ -405,10 +693,10 @@ vl_api_unbind_uri_t_handler (vl_api_unbind_uri_t * mp)
 {
   vl_api_unbind_uri_reply_t *rmp;
   application_t *app;
-  vnet_unbind_args_t _a, *a = &_a;
+  vnet_unlisten_args_t _a, *a = &_a;
   int rv;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -418,7 +706,7 @@ vl_api_unbind_uri_t_handler (vl_api_unbind_uri_t * mp)
   if (app)
     {
       a->uri = (char *) mp->uri;
-      a->app_index = app->index;
+      a->app_index = app->app_index;
       rv = vnet_unbind_uri (a);
     }
   else
@@ -436,9 +724,9 @@ vl_api_connect_uri_t_handler (vl_api_connect_uri_t * mp)
   vl_api_connect_uri_reply_t *rmp;
   vnet_connect_args_t _a, *a = &_a;
   application_t *app;
-  int rv;
+  int rv = 0;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -447,26 +735,28 @@ vl_api_connect_uri_t_handler (vl_api_connect_uri_t * mp)
   app = application_lookup (mp->client_index);
   if (app)
     {
+      clib_memset (a, 0, sizeof (*a));
       a->uri = (char *) mp->uri;
       a->api_context = mp->context;
-      a->app_index = app->index;
-      a->mp = mp;
-      rv = vnet_connect_uri (a);
+      a->app_index = app->app_index;
+      if ((rv = vnet_connect_uri (a)))
+       clib_warning ("connect_uri returned: %d", rv);
     }
   else
     {
       rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
     }
 
-  if (rv == 0 || rv == VNET_CONNECT_REDIRECTED)
+  /*
+   * Don't reply to stream (tcp) connects. The reply will come once
+   * the connection is established. In case of the redirects, the reply
+   * will come from the server app.
+   */
+  if (rv == 0)
     return;
 
-  /* Got some error, relay it */
-
 done:
-  /* *INDENT-OFF* */
   REPLY_MACRO (VL_API_CONNECT_URI_REPLY);
-  /* *INDENT-ON* */
 }
 
 static void
@@ -477,7 +767,7 @@ vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
   application_t *app;
   int rv = 0;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -487,7 +777,7 @@ vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
   if (app)
     {
       a->handle = mp->handle;
-      a->app_index = app->index;
+      a->app_index = app->app_index;
       rv = vnet_disconnect_session (a);
     }
   else
@@ -496,7 +786,7 @@ vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
     }
 
 done:
-  REPLY_MACRO (VL_API_DISCONNECT_SESSION_REPLY);
+  REPLY_MACRO2 (VL_API_DISCONNECT_SESSION_REPLY, rmp->handle = mp->handle);
 }
 
 static void
@@ -514,70 +804,15 @@ vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
     }
 
   /* Disconnect has been confirmed. Confirm close to transport */
-  app = application_lookup (mp->client_index);
+  app = application_lookup (mp->context);
   if (app)
     {
       a->handle = mp->handle;
-      a->app_index = app->index;
+      a->app_index = app->app_index;
       vnet_disconnect_session (a);
     }
 }
 
-static void
-vl_api_reset_session_reply_t_handler (vl_api_reset_session_reply_t * mp)
-{
-  application_t *app;
-  stream_session_t *s;
-  u32 index, thread_index;
-
-  app = application_lookup (mp->client_index);
-  if (!app)
-    return;
-
-  stream_session_parse_handle (mp->handle, &index, &thread_index);
-  s = stream_session_get_if_valid (index, thread_index);
-  if (s == 0 || app->index != s->app_index)
-    {
-      clib_warning ("Invalid session!");
-      return;
-    }
-
-  /* Client objected to resetting the session, log and continue */
-  if (mp->retval)
-    {
-      clib_warning ("client retval %d", mp->retval);
-      return;
-    }
-
-  /* This comes as a response to a reset, transport only waiting for
-   * confirmation to remove connection state, no need to disconnect */
-  stream_session_cleanup (s);
-}
-
-static void
-vl_api_accept_session_reply_t_handler (vl_api_accept_session_reply_t * mp)
-{
-  stream_session_t *s;
-  int rv;
-  u32 session_index, thread_index;
-  session_index = stream_session_index_from_handle (mp->handle);
-  thread_index = stream_session_thread_from_handle (mp->handle);
-  if (api_session_not_valid (session_index, thread_index))
-    return;
-
-  s = stream_session_get (session_index, thread_index);
-  rv = mp->retval;
-
-  if (rv)
-    {
-      /* Server isn't interested, kill the session */
-      stream_session_disconnect (s);
-      return;
-    }
-
-  s->session_state = SESSION_STATE_READY;
-}
-
 static void
 vl_api_map_another_segment_reply_t_handler (vl_api_map_another_segment_reply_t
                                            * mp)
@@ -588,44 +823,62 @@ vl_api_map_another_segment_reply_t_handler (vl_api_map_another_segment_reply_t
 static void
 vl_api_bind_sock_t_handler (vl_api_bind_sock_t * mp)
 {
+  vnet_listen_args_t _a, *a = &_a;
   vl_api_bind_sock_reply_t *rmp;
-  vnet_bind_args_t _a, *a = &_a;
-  int rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
-  application_t *app;
+  application_t *app = 0;
+  app_worker_t *app_wrk;
+  ip46_address_t *ip46;
+  int rv = 0;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
     }
 
   app = application_lookup (mp->client_index);
-  if (app)
+  if (!app)
     {
-      memset (a, 0, sizeof (*a));
-      clib_memcpy (&a->tep.ip, mp->ip, (mp->is_ip4 ?
-                                       sizeof (ip4_address_t) :
-                                       sizeof (ip6_address_t)));
-      a->tep.is_ip4 = mp->is_ip4;
-      a->tep.port = mp->port;
-      a->tep.vrf = mp->vrf;
-      a->app_index = app->index;
-
-      rv = vnet_bind (a);
+      rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
+      goto done;
     }
+
+  ip46 = (ip46_address_t *) mp->ip;
+  clib_memset (a, 0, sizeof (*a));
+  a->sep.is_ip4 = mp->is_ip4;
+  a->sep.ip = *ip46;
+  a->sep.port = mp->port;
+  a->sep.fib_index = mp->vrf;
+  a->sep.sw_if_index = ENDPOINT_INVALID_INDEX;
+  a->sep.transport_proto = mp->proto;
+  a->app_index = app->app_index;
+  a->wrk_map_index = mp->wrk_index;
+
+  if ((rv = vnet_listen (a)))
+    clib_warning ("listen returned: %d", rv);
+
 done:
+  /* Actual reply sent only over mq */
   REPLY_MACRO (VL_API_BIND_SOCK_REPLY);
+
+  if (app)
+    {
+      app_wrk = application_get_worker (app, mp->wrk_index);
+      mq_send_session_bound_cb (app_wrk->wrk_index, mp->context, a->handle,
+                               rv);
+    }
 }
 
 static void
 vl_api_unbind_sock_t_handler (vl_api_unbind_sock_t * mp)
 {
   vl_api_unbind_sock_reply_t *rmp;
-  vnet_unbind_args_t _a, *a = &_a;
-  application_t *app;
-  int rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
+  vnet_unlisten_args_t _a, *a = &_a;
+  app_worker_t *app_wrk;
+  application_t *app = 0;
+  int rv = 0;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -634,13 +887,43 @@ vl_api_unbind_sock_t_handler (vl_api_unbind_sock_t * mp)
   app = application_lookup (mp->client_index);
   if (app)
     {
-      a->app_index = mp->client_index;
+      a->app_index = app->app_index;
       a->handle = mp->handle;
-      rv = vnet_unbind (a);
+      a->wrk_map_index = mp->wrk_index;
+      if ((rv = vnet_unlisten (a)))
+       clib_warning ("unlisten returned: %d", rv);
     }
 
 done:
   REPLY_MACRO (VL_API_UNBIND_SOCK_REPLY);
+
+  /*
+   * Send reply over msg queue
+   */
+  svm_msg_q_msg_t _msg, *msg = &_msg;
+  session_unlisten_reply_msg_t *ump;
+  svm_msg_q_t *app_mq;
+  session_event_t *evt;
+
+  if (!app)
+    return;
+
+  app_wrk = application_get_worker (app, a->wrk_map_index);
+  if (!app_wrk)
+    return;
+
+  app_mq = app_wrk->event_queue;
+  if (mq_try_lock_and_alloc_msg (app_mq, msg))
+    return;
+
+  evt = svm_msg_q_msg_data (app_mq, msg);
+  clib_memset (evt, 0, sizeof (*evt));
+  evt->event_type = SESSION_CTRL_EVT_UNLISTEN_REPLY;
+  ump = (session_unlisten_reply_msg_t *) evt->data;
+  ump->context = mp->context;
+  ump->handle = mp->handle;
+  ump->retval = rv;
+  svm_msg_q_add_and_unlock (app_mq, msg);
 }
 
 static void
@@ -648,10 +931,10 @@ vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
 {
   vl_api_connect_sock_reply_t *rmp;
   vnet_connect_args_t _a, *a = &_a;
-  application_t *app;
-  int rv;
+  application_t *app = 0;
+  int rv = 0;
 
-  if (session_manager_is_enabled () == 0)
+  if (session_main_is_enabled () == 0)
     {
       rv = VNET_API_ERROR_FEATURE_DISABLED;
       goto done;
@@ -660,26 +943,434 @@ vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
   app = application_lookup (mp->client_index);
   if (app)
     {
-      clib_memcpy (&a->tep.ip, mp->ip,
-                  (mp->is_ip4 ? sizeof (ip4_address_t) :
-                   sizeof (ip6_address_t)));
+      svm_queue_t *client_q;
+      ip46_address_t *ip46 = (ip46_address_t *) mp->ip;
+
+      clib_memset (a, 0, sizeof (*a));
+      client_q = vl_api_client_index_to_input_queue (mp->client_index);
+      mp->client_queue_address = pointer_to_uword (client_q);
+      a->sep.is_ip4 = mp->is_ip4;
+      a->sep.ip = *ip46;
+      a->sep.port = mp->port;
+      a->sep.transport_proto = mp->proto;
+      a->sep.peer.fib_index = mp->vrf;
+      a->sep.peer.sw_if_index = ENDPOINT_INVALID_INDEX;
+      if (mp->hostname_len)
+       {
+         vec_validate (a->sep_ext.hostname, mp->hostname_len - 1);
+         clib_memcpy_fast (a->sep_ext.hostname, mp->hostname,
+                           mp->hostname_len);
+       }
       a->api_context = mp->context;
-      a->app_index = app->index;
-      a->mp = mp;
-      rv = vnet_connect (a);
+      a->app_index = app->app_index;
+      a->wrk_map_index = mp->wrk_index;
+      if ((rv = vnet_connect (a)))
+       clib_warning ("connect returned: %u", rv);
+      vec_free (a->sep_ext.hostname);
     }
   else
     {
       rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
     }
 
-  if (rv == 0 || rv == VNET_CONNECT_REDIRECTED)
+  if (rv == 0)
     return;
 
   /* Got some error, relay it */
 
 done:
-  REPLY_MACRO (VL_API_CONNECT_URI_REPLY);
+  REPLY_MACRO (VL_API_CONNECT_SOCK_REPLY);
+
+  if (app)
+    {
+      app_worker_t *app_wrk = application_get_worker (app, mp->wrk_index);
+      mq_send_session_connected_cb (app_wrk->wrk_index, mp->context, 0, 1);
+    }
+}
+
+static void
+vl_api_app_worker_add_del_t_handler (vl_api_app_worker_add_del_t * mp)
+{
+  int rv = 0, fds[SESSION_N_FD_TYPE], n_fds = 0;
+  vl_api_app_worker_add_del_reply_t *rmp;
+  vl_api_registration_t *reg;
+  application_t *app;
+  u8 fd_flags = 0;
+
+  if (!session_main_is_enabled ())
+    {
+      rv = VNET_API_ERROR_FEATURE_DISABLED;
+      goto done;
+    }
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  app = application_get_if_valid (clib_net_to_host_u32 (mp->app_index));
+  if (!app)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto done;
+    }
+
+  vnet_app_worker_add_del_args_t args = {
+    .app_index = app->app_index,
+    .wrk_map_index = clib_net_to_host_u32 (mp->wrk_index),
+    .api_client_index = mp->client_index,
+    .is_add = mp->is_add
+  };
+  rv = vnet_app_worker_add_del (&args);
+  if (rv)
+    {
+      clib_warning ("app worker add/del returned: %d", rv);
+      goto done;
+    }
+
+  if (!mp->is_add)
+    goto done;
+
+  /* Send fifo segment fd if needed */
+  if (ssvm_type (args.segment) == SSVM_SEGMENT_MEMFD)
+    {
+      fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
+      fds[n_fds] = args.segment->fd;
+      n_fds += 1;
+    }
+  if (application_segment_manager_properties (app)->use_mq_eventfd)
+    {
+      fd_flags |= SESSION_FD_F_MQ_EVENTFD;
+      fds[n_fds] = svm_msg_q_get_producer_eventfd (args.evt_q);
+      n_fds += 1;
+    }
+
+  /* *INDENT-OFF* */
+done:
+  REPLY_MACRO2 (VL_API_APP_WORKER_ADD_DEL_REPLY, ({
+    rmp->is_add = mp->is_add;
+    rmp->wrk_index = clib_host_to_net_u32 (args.wrk_map_index);
+    rmp->segment_handle = clib_host_to_net_u64 (args.segment_handle);
+    if (!rv && mp->is_add)
+      {
+       if (vec_len (args.segment->name))
+         {
+           memcpy (rmp->segment_name, args.segment->name,
+                   vec_len (args.segment->name));
+           rmp->segment_name_length = vec_len (args.segment->name);
+         }
+       rmp->app_event_queue_address = pointer_to_uword (args.evt_q);
+       rmp->n_fds = n_fds;
+       rmp->fd_flags = fd_flags;
+      }
+  }));
+  /* *INDENT-ON* */
+
+  if (n_fds)
+    session_send_fds (reg, fds, n_fds);
+}
+
+static void
+vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp)
+{
+  vl_api_app_namespace_add_del_reply_t *rmp;
+  u32 appns_index = 0;
+  u8 *ns_id = 0;
+  int rv = 0;
+  if (!session_main_is_enabled ())
+    {
+      rv = VNET_API_ERROR_FEATURE_DISABLED;
+      goto done;
+    }
+
+  if (mp->namespace_id_len > ARRAY_LEN (mp->namespace_id))
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto done;
+    }
+
+  vec_validate (ns_id, mp->namespace_id_len - 1);
+  clib_memcpy_fast (ns_id, mp->namespace_id, mp->namespace_id_len);
+  vnet_app_namespace_add_del_args_t args = {
+    .ns_id = ns_id,
+    .secret = clib_net_to_host_u64 (mp->secret),
+    .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
+    .ip4_fib_id = clib_net_to_host_u32 (mp->ip4_fib_id),
+    .ip6_fib_id = clib_net_to_host_u32 (mp->ip6_fib_id),
+    .is_add = 1
+  };
+  rv = vnet_app_namespace_add_del (&args);
+  if (!rv)
+    {
+      appns_index = app_namespace_index_from_id (ns_id);
+      if (appns_index == APP_NAMESPACE_INVALID_INDEX)
+       {
+         clib_warning ("app ns lookup failed");
+         rv = VNET_API_ERROR_UNSPECIFIED;
+       }
+    }
+  vec_free (ns_id);
+
+  /* *INDENT-OFF* */
+done:
+  REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_REPLY, ({
+    if (!rv)
+      rmp->appns_index = clib_host_to_net_u32 (appns_index);
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp)
+{
+  vl_api_session_rule_add_del_reply_t *rmp;
+  session_rule_add_del_args_t args;
+  session_rule_table_add_del_args_t *table_args = &args.table_args;
+  u8 fib_proto;
+  int rv = 0;
+
+  clib_memset (&args, 0, sizeof (args));
+  fib_proto = mp->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+
+  table_args->lcl.fp_len = mp->lcl_plen;
+  table_args->lcl.fp_proto = fib_proto;
+  table_args->rmt.fp_len = mp->rmt_plen;
+  table_args->rmt.fp_proto = fib_proto;
+  table_args->lcl_port = mp->lcl_port;
+  table_args->rmt_port = mp->rmt_port;
+  table_args->action_index = clib_net_to_host_u32 (mp->action_index);
+  table_args->is_add = mp->is_add;
+  mp->tag[sizeof (mp->tag) - 1] = 0;
+  table_args->tag = format (0, "%s", mp->tag);
+  args.appns_index = clib_net_to_host_u32 (mp->appns_index);
+  args.scope = mp->scope;
+  args.transport_proto = mp->transport_proto;
+
+  clib_memset (&table_args->lcl.fp_addr, 0, sizeof (table_args->lcl.fp_addr));
+  clib_memset (&table_args->rmt.fp_addr, 0, sizeof (table_args->rmt.fp_addr));
+  ip_set (&table_args->lcl.fp_addr, mp->lcl_ip, mp->is_ip4);
+  ip_set (&table_args->rmt.fp_addr, mp->rmt_ip, mp->is_ip4);
+  rv = vnet_session_rule_add_del (&args);
+  if (rv)
+    clib_warning ("rule add del returned: %d", rv);
+  vec_free (table_args->tag);
+  REPLY_MACRO (VL_API_SESSION_RULE_ADD_DEL_REPLY);
+}
+
+static void
+send_session_rule_details4 (mma_rule_16_t * rule, u8 is_local,
+                           u8 transport_proto, u32 appns_index, u8 * tag,
+                           vl_api_registration_t * reg, u32 context)
+{
+  vl_api_session_rules_details_t *rmp = 0;
+  session_mask_or_match_4_t *match =
+    (session_mask_or_match_4_t *) & rule->match;
+  session_mask_or_match_4_t *mask =
+    (session_mask_or_match_4_t *) & rule->mask;
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  clib_memset (rmp, 0, sizeof (*rmp));
+  rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS);
+  rmp->context = context;
+
+  rmp->is_ip4 = 1;
+  clib_memcpy_fast (rmp->lcl_ip, &match->lcl_ip, sizeof (match->lcl_ip));
+  clib_memcpy_fast (rmp->rmt_ip, &match->rmt_ip, sizeof (match->rmt_ip));
+  rmp->lcl_plen = ip4_mask_to_preflen (&mask->lcl_ip);
+  rmp->rmt_plen = ip4_mask_to_preflen (&mask->rmt_ip);
+  rmp->lcl_port = match->lcl_port;
+  rmp->rmt_port = match->rmt_port;
+  rmp->action_index = clib_host_to_net_u32 (rule->action_index);
+  rmp->scope =
+    is_local ? SESSION_RULE_SCOPE_LOCAL : SESSION_RULE_SCOPE_GLOBAL;
+  rmp->transport_proto = transport_proto;
+  rmp->appns_index = clib_host_to_net_u32 (appns_index);
+  if (tag)
+    {
+      clib_memcpy_fast (rmp->tag, tag, vec_len (tag));
+      rmp->tag[vec_len (tag)] = 0;
+    }
+
+  vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+send_session_rule_details6 (mma_rule_40_t * rule, u8 is_local,
+                           u8 transport_proto, u32 appns_index, u8 * tag,
+                           vl_api_registration_t * reg, u32 context)
+{
+  vl_api_session_rules_details_t *rmp = 0;
+  session_mask_or_match_6_t *match =
+    (session_mask_or_match_6_t *) & rule->match;
+  session_mask_or_match_6_t *mask =
+    (session_mask_or_match_6_t *) & rule->mask;
+
+  rmp = vl_msg_api_alloc (sizeof (*rmp));
+  clib_memset (rmp, 0, sizeof (*rmp));
+  rmp->_vl_msg_id = ntohs (VL_API_SESSION_RULES_DETAILS);
+  rmp->context = context;
+
+  rmp->is_ip4 = 0;
+  clib_memcpy_fast (rmp->lcl_ip, &match->lcl_ip, sizeof (match->lcl_ip));
+  clib_memcpy_fast (rmp->rmt_ip, &match->rmt_ip, sizeof (match->rmt_ip));
+  rmp->lcl_plen = ip6_mask_to_preflen (&mask->lcl_ip);
+  rmp->rmt_plen = ip6_mask_to_preflen (&mask->rmt_ip);
+  rmp->lcl_port = match->lcl_port;
+  rmp->rmt_port = match->rmt_port;
+  rmp->action_index = clib_host_to_net_u32 (rule->action_index);
+  rmp->scope =
+    is_local ? SESSION_RULE_SCOPE_LOCAL : SESSION_RULE_SCOPE_GLOBAL;
+  rmp->transport_proto = transport_proto;
+  rmp->appns_index = clib_host_to_net_u32 (appns_index);
+  if (tag)
+    {
+      clib_memcpy_fast (rmp->tag, tag, vec_len (tag));
+      rmp->tag[vec_len (tag)] = 0;
+    }
+
+  vl_api_send_msg (reg, (u8 *) rmp);
+}
+
+static void
+send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto,
+                                 u8 tp, u8 is_local, u32 appns_index,
+                                 vl_api_registration_t * reg, u32 context)
+{
+  mma_rule_16_t *rule16;
+  mma_rule_40_t *rule40;
+  mma_rules_table_16_t *srt16;
+  mma_rules_table_40_t *srt40;
+  u32 ri;
+
+  if (is_local || fib_proto == FIB_PROTOCOL_IP4)
+    {
+      u8 *tag = 0;
+      /* *INDENT-OFF* */
+      srt16 = &srt->session_rules_tables_16;
+      pool_foreach (rule16, srt16->rules, ({
+       ri = mma_rules_table_rule_index_16 (srt16, rule16);
+       tag = session_rules_table_rule_tag (srt, ri, 1);
+        send_session_rule_details4 (rule16, is_local, tp, appns_index, tag,
+                                    reg, context);
+      }));
+      /* *INDENT-ON* */
+    }
+  if (is_local || fib_proto == FIB_PROTOCOL_IP6)
+    {
+      u8 *tag = 0;
+      /* *INDENT-OFF* */
+      srt40 = &srt->session_rules_tables_40;
+      pool_foreach (rule40, srt40->rules, ({
+       ri = mma_rules_table_rule_index_40 (srt40, rule40);
+       tag = session_rules_table_rule_tag (srt, ri, 1);
+        send_session_rule_details6 (rule40, is_local, tp, appns_index, tag,
+                                    reg, context);
+      }));
+      /* *INDENT-ON* */
+    }
+}
+
+static void
+vl_api_session_rules_dump_t_handler (vl_api_one_map_server_dump_t * mp)
+{
+  vl_api_registration_t *reg;
+  session_table_t *st;
+  u8 tp;
+
+  reg = vl_api_client_index_to_registration (mp->client_index);
+  if (!reg)
+    return;
+
+  /* *INDENT-OFF* */
+  session_table_foreach (st, ({
+    for (tp = 0; tp < TRANSPORT_N_PROTO; tp++)
+      {
+        send_session_rules_table_details (&st->session_rules[tp],
+                                          st->active_fib_proto, tp,
+                                          st->is_local, st->appns_index, reg,
+                                          mp->context);
+      }
+  }));
+  /* *INDENT-ON* */
+}
+
+static void
+vl_api_application_tls_cert_add_t_handler (vl_api_application_tls_cert_add_t *
+                                          mp)
+{
+  vl_api_app_namespace_add_del_reply_t *rmp;
+  vnet_app_add_tls_cert_args_t _a, *a = &_a;
+  clib_error_t *error;
+  application_t *app;
+  u32 cert_len;
+  int rv = 0;
+  if (!session_main_is_enabled ())
+    {
+      rv = VNET_API_ERROR_FEATURE_DISABLED;
+      goto done;
+    }
+  if (!(app = application_lookup (mp->client_index)))
+    {
+      rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
+      goto done;
+    }
+  clib_memset (a, 0, sizeof (*a));
+  a->app_index = app->app_index;
+  cert_len = clib_net_to_host_u16 (mp->cert_len);
+  if (cert_len > 10000)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto done;
+    }
+  vec_validate (a->cert, cert_len);
+  clib_memcpy_fast (a->cert, mp->cert, cert_len);
+  if ((error = vnet_app_add_tls_cert (a)))
+    {
+      rv = clib_error_get_code (error);
+      clib_error_report (error);
+    }
+  vec_free (a->cert);
+done:
+  REPLY_MACRO (VL_API_APPLICATION_TLS_CERT_ADD_REPLY);
+}
+
+static void
+vl_api_application_tls_key_add_t_handler (vl_api_application_tls_key_add_t *
+                                         mp)
+{
+  vl_api_app_namespace_add_del_reply_t *rmp;
+  vnet_app_add_tls_key_args_t _a, *a = &_a;
+  clib_error_t *error;
+  application_t *app;
+  u32 key_len;
+  int rv = 0;
+  if (!session_main_is_enabled ())
+    {
+      rv = VNET_API_ERROR_FEATURE_DISABLED;
+      goto done;
+    }
+  if (!(app = application_lookup (mp->client_index)))
+    {
+      rv = VNET_API_ERROR_APPLICATION_NOT_ATTACHED;
+      goto done;
+    }
+  clib_memset (a, 0, sizeof (*a));
+  a->app_index = app->app_index;
+  key_len = clib_net_to_host_u16 (mp->key_len);
+  if (key_len > 10000)
+    {
+      rv = VNET_API_ERROR_INVALID_VALUE;
+      goto done;
+    }
+  vec_validate (a->key, key_len);
+  clib_memcpy_fast (a->key, mp->key, key_len);
+  if ((error = vnet_app_add_tls_key (a)))
+    {
+      rv = clib_error_get_code (error);
+      clib_error_report (error);
+    }
+  vec_free (a->key);
+done:
+  REPLY_MACRO (VL_API_APPLICATION_TLS_KEY_ADD_REPLY);
 }
 
 static clib_error_t *
@@ -689,7 +1380,8 @@ application_reaper_cb (u32 client_index)
   vnet_app_detach_args_t _a, *a = &_a;
   if (app)
     {
-      a->app_index = app->index;
+      a->app_index = app->app_index;
+      a->api_client_index = client_index;
       vnet_application_detach (a);
     }
   return 0;