1 files changed, 333 insertions, 357 deletions

diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c
index c0ed1250dab..48eb932a2c9 100644
--- a/src/vnet/session/session_api.c
+++ b/src/vnet/session/session_api.c
@@ -82,40 +82,12 @@ session_send_fds (vl_api_registration_t * reg, int fds[], int n_fds)
 }
 
 static int
-mq_try_lock_and_alloc_msg (svm_msg_q_t * app_mq, svm_msg_q_msg_t * msg)
-{
-  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;
-      /*
-       * Break the loop if mq is full, usually this is because the
-       * app has crashed or is hanging on somewhere.
-       */
-      if (rv != -1)
-	break;
-      try++;
-      usleep (1);
-    }
-  clib_warning ("failed to alloc msg");
-  return -1;
-}
-
-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;
   session_accepted_msg_t m = { 0 };
-  svm_msg_q_t *app_mq;
   fifo_segment_t *eq_seg;
   session_t *listener;
-  session_event_t *evt;
   application_t *app;
 
   app = application_get (app_wrk->app_index);
@@ -164,15 +136,14 @@ mq_send_session_accepted_cb (session_t * s)
       m.mq_index = s->thread_index;
     }
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return SESSION_E_MQ_MSG_ALLOC;
+  if (application_original_dst_is_enabled (app))
+    {
+      session_get_original_dst (&m.lcl, &m.rmt,
+				session_get_transport_proto (s),
+				&m.original_dst_ip4, &m.original_dst_port);
+    }
 
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_ACCEPTED;
-  clib_memcpy_fast (evt->data, &m, sizeof (m));
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_ACCEPTED, &m, sizeof (m));
 
   return 0;
 }
@@ -181,21 +152,12 @@ 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;
+  session_disconnected_msg_t m = { 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);
+  m.handle = sh;
+  m.context = app_wrk->api_client_index;
+
+  app_wrk_send_ctrl_evt (app_wrk, evt_type, &m, sizeof (m));
 }
 
 static inline void
@@ -249,13 +211,9 @@ int
 mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
 			      session_t * s, session_error_t err)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
   session_connected_msg_t m = { 0 };
-  svm_msg_q_t *app_mq;
-  transport_connection_t *tc;
   fifo_segment_t *eq_seg;
   app_worker_t *app_wrk;
-  session_event_t *evt;
   application_t *app;
 
   app_wrk = app_worker_get (app_wrk_index);
@@ -271,14 +229,6 @@ mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
 
   if (session_has_transport (s))
     {
-      tc = session_get_transport (s);
-      if (!tc)
-	{
-	  clib_warning ("failed to retrieve transport!");
-	  m.retval = SESSION_E_REFUSED;
-	  goto snd_msg;
-	}
-
       m.handle = session_handle (s);
       m.vpp_event_queue_address =
 	fifo_segment_msg_q_offset (eq_seg, s->thread_index);
@@ -293,7 +243,6 @@ mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
   else
     {
       ct_connection_t *cct;
-      session_t *ss;
 
       cct = (ct_connection_t *) session_get_transport (s);
       m.handle = session_handle (s);
@@ -304,11 +253,10 @@ mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
       m.server_rx_fifo = fifo_segment_fifo_offset (s->rx_fifo);
       m.server_tx_fifo = fifo_segment_fifo_offset (s->tx_fifo);
       m.segment_handle = session_segment_handle (s);
-      ss = ct_session_get_peer (s);
-      m.ct_rx_fifo = fifo_segment_fifo_offset (ss->tx_fifo);
-      m.ct_tx_fifo = fifo_segment_fifo_offset (ss->rx_fifo);
-      m.ct_segment_handle = session_segment_handle (ss);
       m.mq_index = s->thread_index;
+      m.ct_rx_fifo = fifo_segment_fifo_offset (cct->client_rx_fifo);
+      m.ct_tx_fifo = fifo_segment_fifo_offset (cct->client_tx_fifo);
+      m.ct_segment_handle = cct->segment_handle;
     }
 
   /* Setup client session index in advance, in case data arrives
@@ -318,31 +266,19 @@ mq_send_session_connected_cb (u32 app_wrk_index, u32 api_context,
 
 snd_msg:
 
-  app_mq = app_wrk->event_queue;
-
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return SESSION_E_MQ_MSG_ALLOC;
-
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_CONNECTED;
-  clib_memcpy_fast (evt->data, &m, sizeof (m));
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_CONNECTED, &m, sizeof (m));
 
-  svm_msg_q_add_and_unlock (app_mq, msg);
   return 0;
 }
 
-int
+static int
 mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context,
 			  session_handle_t handle, int rv)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
   session_bound_msg_t m = { 0 };
-  svm_msg_q_t *app_mq;
-  transport_endpoint_t tep;
+  transport_connection_t *ltc;
   fifo_segment_t *eq_seg;
   app_worker_t *app_wrk;
-  session_event_t *evt;
   application_t *app;
   app_listener_t *al;
   session_t *ls = 0;
@@ -362,77 +298,60 @@ mq_send_session_bound_cb (u32 app_wrk_index, u32 api_context,
   else
     ls = app_listener_get_local_session (al);
 
-  session_get_endpoint (ls, &tep, 1 /* is_lcl */);
-  m.lcl_port = tep.port;
-  m.lcl_is_ip4 = tep.is_ip4;
-  clib_memcpy_fast (m.lcl_ip, &tep.ip, sizeof (tep.ip));
+  ltc = session_get_transport (ls);
+  m.lcl_port = ltc->lcl_port;
+  m.lcl_is_ip4 = ltc->is_ip4;
+  clib_memcpy_fast (m.lcl_ip, &ltc->lcl_ip, sizeof (m.lcl_ip));
   app = application_get (app_wrk->app_index);
   eq_seg = application_get_rx_mqs_segment (app);
   m.vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, ls->thread_index);
   m.mq_index = ls->thread_index;
 
-  if (session_transport_service_type (ls) == TRANSPORT_SERVICE_CL &&
-      ls->rx_fifo)
+  if (transport_connection_is_cless (ltc))
     {
-      m.rx_fifo = fifo_segment_fifo_offset (ls->rx_fifo);
-      m.tx_fifo = fifo_segment_fifo_offset (ls->tx_fifo);
-      m.segment_handle = session_segment_handle (ls);
+      session_t *wrk_ls;
+      m.mq_index = transport_cl_thread ();
+      m.vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, m.mq_index);
+      wrk_ls = app_listener_get_wrk_cl_session (al, app_wrk->wrk_map_index);
+      m.rx_fifo = fifo_segment_fifo_offset (wrk_ls->rx_fifo);
+      m.tx_fifo = fifo_segment_fifo_offset (wrk_ls->tx_fifo);
+      m.segment_handle = session_segment_handle (wrk_ls);
     }
 
 snd_msg:
 
-  app_mq = app_wrk->event_queue;
-
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return SESSION_E_MQ_MSG_ALLOC;
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_BOUND, &m, sizeof (m));
 
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_BOUND;
-  clib_memcpy_fast (evt->data, &m, sizeof (m));
-
-  svm_msg_q_add_and_unlock (app_mq, msg);
   return 0;
 }
 
-void
-mq_send_unlisten_reply (app_worker_t * app_wrk, session_handle_t sh,
-			u32 context, int rv)
+static void
+mq_send_unlisten_cb (u32 app_wrk_index, session_handle_t sh, u32 context,
+		     int rv)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
-  session_unlisten_reply_msg_t *ump;
-  svm_msg_q_t *app_mq;
-  session_event_t *evt;
+  session_unlisten_reply_msg_t m = { 0 };
+  app_worker_t *app_wrk;
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return;
+  app_wrk = app_worker_get (app_wrk_index);
 
-  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 = context;
-  ump->handle = sh;
-  ump->retval = rv;
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  m.context = context;
+  m.handle = sh;
+  m.retval = rv;
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_UNLISTEN_REPLY, &m,
+			 sizeof (m));
 }
 
 static void
 mq_send_session_migrate_cb (session_t * s, session_handle_t new_sh)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
   session_migrated_msg_t m = { 0 };
   fifo_segment_t *eq_seg;
   app_worker_t *app_wrk;
-  session_event_t *evt;
-  svm_msg_q_t *app_mq;
   application_t *app;
   u32 thread_index;
 
   thread_index = session_thread_from_handle (new_sh);
   app_wrk = app_worker_get (s->app_wrk_index);
-  app_mq = app_wrk->event_queue;
   app = application_get (app_wrk->app_index);
   eq_seg = application_get_rx_mqs_segment (app);
 
@@ -442,27 +361,15 @@ mq_send_session_migrate_cb (session_t * s, session_handle_t new_sh)
   m.vpp_evt_q = fifo_segment_msg_q_offset (eq_seg, thread_index);
   m.segment_handle = SESSION_INVALID_HANDLE;
 
-  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_MIGRATED;
-  clib_memcpy_fast (evt->data, &m, sizeof (m));
-
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_MIGRATED, &m, sizeof (m));
 }
 
 static int
 mq_send_add_segment_cb (u32 app_wrk_index, u64 segment_handle)
 {
-  int fds[SESSION_N_FD_TYPE], n_fds = 0;
-  svm_msg_q_msg_t _msg, *msg = &_msg;
-  session_app_add_segment_msg_t *mp;
+  session_app_add_segment_msg_t m = { 0 };
   vl_api_registration_t *reg;
   app_worker_t *app_wrk;
-  session_event_t *evt;
-  svm_msg_q_t *app_mq;
   fifo_segment_t *fs;
   ssvm_private_t *sp;
   u8 fd_flags = 0;
@@ -488,29 +395,16 @@ mq_send_add_segment_cb (u32 app_wrk_index, u64 segment_handle)
 	}
 
       fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
-      fds[n_fds] = sp->fd;
-      n_fds += 1;
     }
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return -1;
-
-  if (n_fds)
-    session_send_fds (reg, fds, n_fds);
+  m.segment_size = sp->ssvm_size;
+  m.fd_flags = fd_flags;
+  m.segment_handle = segment_handle;
+  strncpy ((char *) m.segment_name, (char *) sp->name,
+	   sizeof (m.segment_name) - 1);
 
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT;
-  mp = (session_app_add_segment_msg_t *) evt->data;
-  clib_memset (mp, 0, sizeof (*mp));
-  mp->segment_size = sp->ssvm_size;
-  mp->fd_flags = fd_flags;
-  mp->segment_handle = segment_handle;
-  strncpy ((char *) mp->segment_name, (char *) sp->name,
-	   sizeof (mp->segment_name) - 1);
-
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  app_wrk_send_ctrl_evt_fd (app_wrk, SESSION_CTRL_EVT_APP_ADD_SEGMENT, &m,
+			    sizeof (m), sp->fd);
 
   return 0;
 }
@@ -518,12 +412,9 @@ mq_send_add_segment_cb (u32 app_wrk_index, u64 segment_handle)
 static int
 mq_send_del_segment_cb (u32 app_wrk_index, u64 segment_handle)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
-  session_app_del_segment_msg_t *mp;
+  session_app_del_segment_msg_t m = { 0 };
   vl_api_registration_t *reg;
   app_worker_t *app_wrk;
-  session_event_t *evt;
-  svm_msg_q_t *app_mq;
 
   app_wrk = app_worker_get (app_wrk_index);
   reg = vl_mem_api_client_index_to_registration (app_wrk->api_client_index);
@@ -533,17 +424,10 @@ mq_send_del_segment_cb (u32 app_wrk_index, u64 segment_handle)
       return -1;
     }
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return -1;
+  m.segment_handle = segment_handle;
 
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT;
-  mp = (session_app_del_segment_msg_t *) evt->data;
-  clib_memset (mp, 0, sizeof (*mp));
-  mp->segment_handle = segment_handle;
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_APP_DEL_SEGMENT, &m,
+			 sizeof (m));
 
   return 0;
 }
@@ -551,10 +435,7 @@ mq_send_del_segment_cb (u32 app_wrk_index, u64 segment_handle)
 static void
 mq_send_session_cleanup_cb (session_t * s, session_cleanup_ntf_t ntf)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
-  session_cleanup_msg_t *mp;
-  svm_msg_q_t *app_mq;
-  session_event_t *evt;
+  session_cleanup_msg_t m = { 0 };
   app_worker_t *app_wrk;
 
   /* Propagate transport cleanup notifications only if app didn't close */
@@ -566,17 +447,56 @@ mq_send_session_cleanup_cb (session_t * s, session_cleanup_ntf_t ntf)
   if (!app_wrk)
     return;
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return;
+  m.handle = session_handle (s);
+  m.type = ntf;
+
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_CLEANUP, &m, sizeof (m));
+}
+
+static int
+mq_send_io_rx_event (session_t *s)
+{
+  session_event_t *mq_evt;
+  svm_msg_q_msg_t mq_msg;
+  app_worker_t *app_wrk;
+  svm_msg_q_t *mq;
+
+  if (svm_fifo_has_event (s->rx_fifo))
+    return 0;
+
+  app_wrk = app_worker_get (s->app_wrk_index);
+  mq = app_wrk->event_queue;
+
+  mq_msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+  mq_evt = svm_msg_q_msg_data (mq, &mq_msg);
+
+  mq_evt->event_type = SESSION_IO_EVT_RX;
+  mq_evt->session_index = s->rx_fifo->shr->client_session_index;
+
+  (void) svm_fifo_set_event (s->rx_fifo);
+
+  svm_msg_q_add_raw (mq, &mq_msg);
 
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_CLEANUP;
-  mp = (session_cleanup_msg_t *) evt->data;
-  mp->handle = session_handle (s);
-  mp->type = ntf;
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  return 0;
+}
+
+static int
+mq_send_io_tx_event (session_t *s)
+{
+  app_worker_t *app_wrk = app_worker_get (s->app_wrk_index);
+  svm_msg_q_t *mq = app_wrk->event_queue;
+  session_event_t *mq_evt;
+  svm_msg_q_msg_t mq_msg;
+
+  mq_msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+  mq_evt = svm_msg_q_msg_data (mq, &mq_msg);
+
+  mq_evt->event_type = SESSION_IO_EVT_TX;
+  mq_evt->session_index = s->tx_fifo->shr->client_session_index;
+
+  svm_msg_q_add_raw (mq, &mq_msg);
+
+  return 0;
 }
 
 static session_cb_vft_t session_mq_cb_vft = {
@@ -586,8 +506,12 @@ static session_cb_vft_t session_mq_cb_vft = {
   .session_reset_callback = mq_send_session_reset_cb,
   .session_migrate_callback = mq_send_session_migrate_cb,
   .session_cleanup_callback = mq_send_session_cleanup_cb,
+  .session_listened_callback = mq_send_session_bound_cb,
+  .session_unlistened_callback = mq_send_unlisten_cb,
   .add_segment_callback = mq_send_add_segment_cb,
   .del_segment_callback = mq_send_del_segment_cb,
+  .builtin_app_rx_callback = mq_send_io_rx_event,
+  .builtin_app_tx_callback = mq_send_io_tx_event,
 };
 
 static void
@@ -602,6 +526,17 @@ vl_api_session_enable_disable_t_handler (vl_api_session_enable_disable_t * mp)
 }
 
 static void
+vl_api_session_sapi_enable_disable_t_handler (
+  vl_api_session_sapi_enable_disable_t *mp)
+{
+  vl_api_session_sapi_enable_disable_reply_t *rmp;
+  int rv = 0;
+
+  rv = appns_sapi_enable_disable (mp->is_enable);
+  REPLY_MACRO (VL_API_SESSION_SAPI_ENABLE_DISABLE_REPLY);
+}
+
+static void
 vl_api_app_attach_t_handler (vl_api_app_attach_t * mp)
 {
   int rv = 0, *fds = 0, n_fds = 0, n_workers, i;
@@ -642,7 +577,8 @@ vl_api_app_attach_t_handler (vl_api_app_attach_t * mp)
 
   if ((rv = vnet_application_attach (a)))
     {
-      clib_warning ("attach returned: %d", rv);
+      clib_warning ("attach returned: %U", format_session_error, rv);
+      rv = VNET_API_ERROR_UNSPECIFIED;
       vec_free (a->namespace_id);
       goto done;
     }
@@ -684,27 +620,28 @@ vl_api_app_attach_t_handler (vl_api_app_attach_t * mp)
     }
 
 done:
-  /* *INDENT-OFF* */
-  REPLY_MACRO2 (VL_API_APP_ATTACH_REPLY, ({
-    if (!rv)
-      {
-	ctrl_thread = n_workers ? 1 : 0;
-	segp = (fifo_segment_t *) a->segment;
-	rmp->app_index = clib_host_to_net_u32 (a->app_index);
-	rmp->app_mq = fifo_segment_msg_q_offset (segp, 0);
-	rmp->vpp_ctrl_mq = fifo_segment_msg_q_offset (rx_mqs_seg, ctrl_thread);
-	rmp->vpp_ctrl_mq_thread = ctrl_thread;
-	rmp->n_fds = n_fds;
-	rmp->fd_flags = fd_flags;
-	if (vec_len (segp->ssvm.name))
-	  {
-	    vl_api_vec_to_api_string (segp->ssvm.name, &rmp->segment_name);
-	  }
-	rmp->segment_size = segp->ssvm.ssvm_size;
-	rmp->segment_handle = clib_host_to_net_u64 (a->segment_handle);
-      }
-  }));
-  /* *INDENT-ON* */
+  REPLY_MACRO3 (
+    VL_API_APP_ATTACH_REPLY,
+    ((!rv) ? vec_len (((fifo_segment_t *) a->segment)->ssvm.name) : 0), ({
+      if (!rv)
+	{
+	  ctrl_thread = n_workers ? 1 : 0;
+	  segp = (fifo_segment_t *) a->segment;
+	  rmp->app_index = clib_host_to_net_u32 (a->app_index);
+	  rmp->app_mq = fifo_segment_msg_q_offset (segp, 0);
+	  rmp->vpp_ctrl_mq =
+	    fifo_segment_msg_q_offset (rx_mqs_seg, ctrl_thread);
+	  rmp->vpp_ctrl_mq_thread = ctrl_thread;
+	  rmp->n_fds = n_fds;
+	  rmp->fd_flags = fd_flags;
+	  if (vec_len (segp->ssvm.name))
+	    {
+	      vl_api_vec_to_api_string (segp->ssvm.name, &rmp->segment_name);
+	    }
+	  rmp->segment_size = segp->ssvm.ssvm_size;
+	  rmp->segment_handle = clib_host_to_net_u64 (a->segment_handle);
+	}
+    }));
 
   if (n_fds)
     session_send_fds (reg, fds, n_fds);
@@ -746,7 +683,9 @@ vl_api_app_worker_add_del_t_handler (vl_api_app_worker_add_del_t * mp)
   rv = vnet_app_worker_add_del (&args);
   if (rv)
     {
-      clib_warning ("app worker add/del returned: %d", rv);
+      clib_warning ("app worker add/del returned: %U", format_session_error,
+		    rv);
+      rv = VNET_API_ERROR_UNSPECIFIED;
       goto done;
     }
 
@@ -767,25 +706,27 @@ vl_api_app_worker_add_del_t_handler (vl_api_app_worker_add_del_t * mp)
       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)
-      {
-	rmp->app_event_queue_address =
-	  fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0);
-	rmp->n_fds = n_fds;
-	rmp->fd_flags = fd_flags;
-	if (vec_len (args.segment->name))
-	  {
-	    vl_api_vec_to_api_string (args.segment->name, &rmp->segment_name);
-	  }
-      }
-  }));
-  /* *INDENT-ON* */
+  REPLY_MACRO3 (
+    VL_API_APP_WORKER_ADD_DEL_REPLY,
+    ((!rv && mp->is_add) ? vec_len (args.segment->name) : 0), ({
+      rmp->is_add = mp->is_add;
+      rmp->wrk_index = mp->wrk_index;
+      if (!rv && 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);
+	  rmp->app_event_queue_address =
+	    fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0);
+	  rmp->n_fds = n_fds;
+	  rmp->fd_flags = fd_flags;
+	  if (vec_len (args.segment->name))
+	    {
+	      vl_api_vec_to_api_string (args.segment->name,
+					&rmp->segment_name);
+	    }
+	}
+    }));
 
   if (n_fds)
     session_send_fds (reg, fds, n_fds);
@@ -811,6 +752,12 @@ vl_api_application_detach_t_handler (vl_api_application_detach_t * mp)
       a->app_index = app->app_index;
       a->api_client_index = mp->client_index;
       rv = vnet_application_detach (a);
+      if (rv)
+	{
+	  clib_warning ("vnet_application_detach: %U", format_session_error,
+			rv);
+	  rv = VNET_API_ERROR_UNSPECIFIED;
+	}
     }
 
 done:
@@ -834,7 +781,6 @@ vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp)
 
   vnet_app_namespace_add_del_args_t args = {
     .ns_id = ns_id,
-    .netns = 0,
     .sock_name = 0,
     .secret = clib_net_to_host_u64 (mp->secret),
     .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
@@ -854,13 +800,11 @@ vl_api_app_namespace_add_del_t_handler (vl_api_app_namespace_add_del_t * mp)
     }
   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
@@ -868,7 +812,7 @@ vl_api_app_namespace_add_del_v2_t_handler (
   vl_api_app_namespace_add_del_v2_t *mp)
 {
   vl_api_app_namespace_add_del_v2_reply_t *rmp;
-  u8 *ns_id = 0, *netns = 0;
+  u8 *ns_id = 0;
   u32 appns_index = 0;
   int rv = 0;
 
@@ -879,13 +823,10 @@ vl_api_app_namespace_add_del_v2_t_handler (
     }
 
   mp->namespace_id[sizeof (mp->namespace_id) - 1] = 0;
-  mp->netns[sizeof (mp->netns) - 1] = 0;
   ns_id = format (0, "%s", &mp->namespace_id);
-  netns = format (0, "%s", &mp->netns);
 
   vnet_app_namespace_add_del_args_t args = {
     .ns_id = ns_id,
-    .netns = netns,
     .sock_name = 0,
     .secret = clib_net_to_host_u64 (mp->secret),
     .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
@@ -904,7 +845,6 @@ vl_api_app_namespace_add_del_v2_t_handler (
 	}
     }
   vec_free (ns_id);
-  vec_free (netns);
 
 done:
   REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_V2_REPLY, ({
@@ -914,11 +854,55 @@ done:
 }
 
 static void
+vl_api_app_namespace_add_del_v4_t_handler (
+  vl_api_app_namespace_add_del_v4_t *mp)
+{
+  vl_api_app_namespace_add_del_v4_reply_t *rmp;
+  u8 *ns_id = 0, *sock_name = 0;
+  u32 appns_index = 0;
+  int rv = 0;
+  if (session_main_is_enabled () == 0)
+    {
+      rv = VNET_API_ERROR_FEATURE_DISABLED;
+      goto done;
+    }
+  mp->namespace_id[sizeof (mp->namespace_id) - 1] = 0;
+  ns_id = format (0, "%s", &mp->namespace_id);
+  sock_name = vl_api_from_api_to_new_vec (mp, &mp->sock_name);
+  vnet_app_namespace_add_del_args_t args = {
+    .ns_id = ns_id,
+    .sock_name = sock_name,
+    .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 = mp->is_add,
+  };
+  rv = vnet_app_namespace_add_del (&args);
+  if (!rv && mp->is_add)
+    {
+      appns_index = app_namespace_index_from_id (ns_id);
+      if (appns_index == APP_NAMESPACE_INVALID_INDEX)
+	{
+	  clib_warning ("app ns lookup failed id:%s", ns_id);
+	  rv = VNET_API_ERROR_UNSPECIFIED;
+	}
+    }
+  vec_free (ns_id);
+  vec_free (sock_name);
+done:
+  REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_V4_REPLY, ({
+		  if (!rv)
+		    rmp->appns_index = clib_host_to_net_u32 (appns_index);
+		}));
+}
+
+static void
 vl_api_app_namespace_add_del_v3_t_handler (
   vl_api_app_namespace_add_del_v3_t *mp)
 {
   vl_api_app_namespace_add_del_v3_reply_t *rmp;
-  u8 *ns_id = 0, *netns = 0, *sock_name = 0;
+  u8 *ns_id = 0, *sock_name = 0, *api_sock_name = 0;
   u32 appns_index = 0;
   int rv = 0;
   if (session_main_is_enabled () == 0)
@@ -927,13 +911,22 @@ vl_api_app_namespace_add_del_v3_t_handler (
       goto done;
     }
   mp->namespace_id[sizeof (mp->namespace_id) - 1] = 0;
-  mp->netns[sizeof (mp->netns) - 1] = 0;
   ns_id = format (0, "%s", &mp->namespace_id);
-  netns = format (0, "%s", &mp->netns);
-  sock_name = format (0, "%s", &mp->sock_name);
+  api_sock_name = vl_api_from_api_to_new_vec (mp, &mp->sock_name);
+  mp->netns[sizeof (mp->netns) - 1] = 0;
+  if (strlen ((char *) mp->netns) != 0)
+    {
+      sock_name =
+	format (0, "abstract:%v,netns_name=%s", api_sock_name, &mp->netns);
+    }
+  else
+    {
+      sock_name = api_sock_name;
+      api_sock_name = 0; // for vec_free
+    }
+
   vnet_app_namespace_add_del_args_t args = {
     .ns_id = ns_id,
-    .netns = netns,
     .sock_name = sock_name,
     .secret = clib_net_to_host_u64 (mp->secret),
     .sw_if_index = clib_net_to_host_u32 (mp->sw_if_index),
@@ -952,8 +945,8 @@ vl_api_app_namespace_add_del_v3_t_handler (
 	}
     }
   vec_free (ns_id);
-  vec_free (netns);
   vec_free (sock_name);
+  vec_free (api_sock_name);
 done:
   REPLY_MACRO2 (VL_API_APP_NAMESPACE_ADD_DEL_V3_REPLY, ({
 		  if (!rv)
@@ -988,7 +981,10 @@ vl_api_session_rule_add_del_t_handler (vl_api_session_rule_add_del_t * mp)
 
   rv = vnet_session_rule_add_del (&args);
   if (rv)
-    clib_warning ("rule add del returned: %d", rv);
+    {
+      clib_warning ("rule add del returned: %U", format_session_error, rv);
+      rv = VNET_API_ERROR_UNSPECIFIED;
+    }
   vec_free (table_args->tag);
   REPLY_MACRO (VL_API_SESSION_RULE_ADD_DEL_REPLY);
 }
@@ -1091,7 +1087,6 @@ send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto,
   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);
@@ -1099,12 +1094,10 @@ send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto,
         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);
@@ -1112,7 +1105,6 @@ send_session_rules_table_details (session_rules_table_t * srt, u8 fib_proto,
         send_session_rule_details6 (rule40, is_local, tp, appns_index, tag,
                                     reg, context);
       }
-      /* *INDENT-ON* */
     }
 }
 
@@ -1127,7 +1119,6 @@ vl_api_session_rules_dump_t_handler (vl_api_session_rules_dump_t * mp)
   if (!reg)
     return;
 
-  /* *INDENT-OFF* */
   session_table_foreach (st, ({
     for (tp = 0; tp < TRANSPORT_N_PROTOS; tp++)
       {
@@ -1137,7 +1128,6 @@ vl_api_session_rules_dump_t_handler (vl_api_session_rules_dump_t * mp)
                                           mp->context);
       }
   }));
-  /* *INDENT-ON* */
 }
 
 static void
@@ -1182,12 +1172,10 @@ vl_api_app_add_cert_key_pair_t_handler (vl_api_app_add_cert_key_pair_t * mp)
   rv = vnet_app_add_cert_key_pair (a);
 
 done:
-  /* *INDENT-OFF* */
   REPLY_MACRO2 (VL_API_APP_ADD_CERT_KEY_PAIR_REPLY, ({
     if (!rv)
       rmp->index = clib_host_to_net_u32 (a->index);
   }));
-  /* *INDENT-ON* */
 }
 
 static void
@@ -1203,6 +1191,12 @@ vl_api_app_del_cert_key_pair_t_handler (vl_api_app_del_cert_key_pair_t * mp)
     }
   ckpair_index = clib_net_to_host_u32 (mp->index);
   rv = vnet_app_del_cert_key_pair (ckpair_index);
+  if (rv)
+    {
+      clib_warning ("vnet_app_del_cert_key_pair: %U", format_session_error,
+		    rv);
+      rv = VNET_API_ERROR_UNSPECIFIED;
+    }
 
 done:
   REPLY_MACRO (VL_API_APP_DEL_CERT_KEY_PAIR_REPLY);
@@ -1228,36 +1222,11 @@ VL_MSG_API_REAPER_FUNCTION (application_reaper_cb);
  * Socket api functions
  */
 
-static void
-sapi_send_fds (app_worker_t * app_wrk, int *fds, int n_fds)
-{
-  app_sapi_msg_t smsg = { 0 };
-  app_namespace_t *app_ns;
-  application_t *app;
-  clib_socket_t *cs;
-  u32 cs_index;
-
-  app = application_get (app_wrk->app_index);
-  app_ns = app_namespace_get (app->ns_index);
-  cs_index = appns_sapi_handle_sock_index (app_wrk->api_client_index);
-  cs = appns_sapi_get_socket (app_ns, cs_index);
-  if (PREDICT_FALSE (!cs))
-    return;
-
-  /* There's no payload for the message only the type */
-  smsg.type = APP_SAPI_MSG_TYPE_SEND_FDS;
-  clib_socket_sendmsg (cs, &smsg, sizeof (smsg), fds, n_fds);
-}
-
 static int
 mq_send_add_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
 {
-  int fds[SESSION_N_FD_TYPE], n_fds = 0;
-  svm_msg_q_msg_t _msg, *msg = &_msg;
-  session_app_add_segment_msg_t *mp;
+  session_app_add_segment_msg_t m = { 0 };
   app_worker_t *app_wrk;
-  session_event_t *evt;
-  svm_msg_q_t *app_mq;
   fifo_segment_t *fs;
   ssvm_private_t *sp;
   u8 fd_flags = 0;
@@ -1269,33 +1238,15 @@ mq_send_add_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
   ASSERT (ssvm_type (sp) == SSVM_SEGMENT_MEMFD);
 
   fd_flags |= SESSION_FD_F_MEMFD_SEGMENT;
-  fds[n_fds] = sp->fd;
-  n_fds += 1;
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return -1;
+  m.segment_size = sp->ssvm_size;
+  m.fd_flags = fd_flags;
+  m.segment_handle = segment_handle;
+  strncpy ((char *) m.segment_name, (char *) sp->name,
+	   sizeof (m.segment_name) - 1);
 
-  /*
-   * Send the fd over api socket
-   */
-  sapi_send_fds (app_wrk, fds, n_fds);
-
-  /*
-   * Send the actual message over mq
-   */
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_APP_ADD_SEGMENT;
-  mp = (session_app_add_segment_msg_t *) evt->data;
-  clib_memset (mp, 0, sizeof (*mp));
-  mp->segment_size = sp->ssvm_size;
-  mp->fd_flags = fd_flags;
-  mp->segment_handle = segment_handle;
-  strncpy ((char *) mp->segment_name, (char *) sp->name,
-	   sizeof (mp->segment_name) - 1);
-
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  app_wrk_send_ctrl_evt_fd (app_wrk, SESSION_CTRL_EVT_APP_ADD_SEGMENT, &m,
+			    sizeof (m), sp->fd);
 
   return 0;
 }
@@ -1303,25 +1254,15 @@ mq_send_add_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
 static int
 mq_send_del_segment_sapi_cb (u32 app_wrk_index, u64 segment_handle)
 {
-  svm_msg_q_msg_t _msg, *msg = &_msg;
-  session_app_del_segment_msg_t *mp;
+  session_app_del_segment_msg_t m = { 0 };
   app_worker_t *app_wrk;
-  session_event_t *evt;
-  svm_msg_q_t *app_mq;
 
   app_wrk = app_worker_get (app_wrk_index);
 
-  app_mq = app_wrk->event_queue;
-  if (mq_try_lock_and_alloc_msg (app_mq, msg))
-    return -1;
+  m.segment_handle = segment_handle;
 
-  evt = svm_msg_q_msg_data (app_mq, msg);
-  clib_memset (evt, 0, sizeof (*evt));
-  evt->event_type = SESSION_CTRL_EVT_APP_DEL_SEGMENT;
-  mp = (session_app_del_segment_msg_t *) evt->data;
-  clib_memset (mp, 0, sizeof (*mp));
-  mp->segment_handle = segment_handle;
-  svm_msg_q_add_and_unlock (app_mq, msg);
+  app_wrk_send_ctrl_evt (app_wrk, SESSION_CTRL_EVT_APP_DEL_SEGMENT, &m,
+			 sizeof (m));
 
   return 0;
 }
@@ -1333,8 +1274,12 @@ static session_cb_vft_t session_mq_sapi_cb_vft = {
   .session_reset_callback = mq_send_session_reset_cb,
   .session_migrate_callback = mq_send_session_migrate_cb,
   .session_cleanup_callback = mq_send_session_cleanup_cb,
+  .session_listened_callback = mq_send_session_bound_cb,
+  .session_unlistened_callback = mq_send_unlisten_cb,
   .add_segment_callback = mq_send_add_segment_sapi_cb,
   .del_segment_callback = mq_send_del_segment_sapi_cb,
+  .builtin_app_rx_callback = mq_send_io_rx_event,
+  .builtin_app_tx_callback = mq_send_io_tx_event,
 };
 
 static void
@@ -1474,7 +1419,7 @@ sapi_add_del_worker_handler (app_namespace_t * app_ns,
   app = application_get_if_valid (mp->app_index);
   if (!app)
     {
-      rv = VNET_API_ERROR_INVALID_VALUE;
+      rv = SESSION_E_INVALID;
       goto done;
     }
 
@@ -1489,7 +1434,8 @@ sapi_add_del_worker_handler (app_namespace_t * app_ns,
   rv = vnet_app_worker_add_del (&args);
   if (rv)
     {
-      clib_warning ("app worker add/del returned: %d", rv);
+      clib_warning ("app worker add/del returned: %U", format_session_error,
+		    rv);
       goto done;
     }
 
@@ -1512,15 +1458,20 @@ sapi_add_del_worker_handler (app_namespace_t * app_ns,
 
 done:
 
+  /* With app sock api socket expected to be closed, no reply */
+  if (!mp->is_add && appns_sapi_enabled ())
+    return;
+
   msg.type = APP_SAPI_MSG_TYPE_ADD_DEL_WORKER_REPLY;
   rmp = &msg.worker_add_del_reply;
   rmp->retval = rv;
   rmp->is_add = mp->is_add;
+  rmp->wrk_index = mp->wrk_index;
   rmp->api_client_handle = sapi_handle;
-  rmp->wrk_index = args.wrk_map_index;
-  rmp->segment_handle = args.segment_handle;
   if (!rv && mp->is_add)
     {
+      rmp->wrk_index = args.wrk_map_index;
+      rmp->segment_handle = args.segment_handle;
       /* No segment name and size. This supports only memfds */
       rmp->app_event_queue_address =
 	fifo_segment_msg_q_offset ((fifo_segment_t *) args.segment, 0);
@@ -1536,6 +1487,31 @@ done:
   clib_socket_sendmsg (cs, &msg, sizeof (msg), fds, n_fds);
 }
 
+/* This is a workaround for the case when session layer starts reading
+ * the socket before the client actualy sends the data
+ */
+static clib_error_t *
+sapi_socket_receive_wait (clib_socket_t *cs, u8 *msg, u32 msg_len)
+{
+  clib_error_t *err;
+  int n_tries = 5;
+
+  while (1)
+    {
+      err = clib_socket_recvmsg (cs, msg, msg_len, 0, 0);
+      if (!err)
+	break;
+
+      if (!n_tries)
+	return err;
+
+      n_tries--;
+      usleep (1);
+    }
+
+  return err;
+}
+
 static void
 sapi_add_del_cert_key_handler (app_namespace_t *app_ns, clib_socket_t *cs,
 			       app_sapi_cert_key_add_del_msg_t *mp)
@@ -1559,11 +1535,11 @@ sapi_add_del_cert_key_handler (app_namespace_t *app_ns, clib_socket_t *cs,
 	}
 
       vec_validate (certkey, mp->certkey_len - 1);
-      err = clib_socket_recvmsg (cs, certkey, mp->certkey_len, 0, 0);
+
+      err = sapi_socket_receive_wait (cs, certkey, mp->certkey_len);
       if (err)
 	{
 	  clib_error_report (err);
-	  clib_error_free (err);
 	  rv = SESSION_E_INVALID;
 	  goto send_reply;
 	}
@@ -1624,7 +1600,9 @@ sapi_socket_detach (app_namespace_t * app_ns, clib_socket_t * cs)
 
   /* Cleanup everything because app worker closed socket or crashed */
   handle = (app_ns_api_handle_t *) & cs->private_data;
-  app_wrk = app_worker_get (handle->aah_app_wrk_index);
+  app_wrk = app_worker_get_if_valid (handle->aah_app_wrk_index);
+  if (!app_wrk)
+    return;
 
   vnet_app_worker_add_del_args_t args = {
     .app_index = app_wrk->app_index,
@@ -1762,6 +1740,23 @@ error:
   return err;
 }
 
+void
+appns_sapi_del_ns_socket (app_namespace_t *app_ns)
+{
+  app_ns_api_handle_t *handle;
+  clib_socket_t *cs;
+
+  pool_foreach (cs, app_ns->app_sockets)
+    {
+      handle = (app_ns_api_handle_t *) &cs->private_data;
+      clib_file_del_by_index (&file_main, handle->aah_file_index);
+
+      clib_socket_close (cs);
+      clib_socket_free (cs);
+    }
+  pool_free (app_ns->app_sockets);
+}
+
 int
 appns_sapi_add_ns_socket (app_namespace_t * app_ns)
 {
@@ -1773,44 +1768,38 @@ appns_sapi_add_ns_socket (app_namespace_t * app_ns)
   clib_socket_t *cs;
   char dir[4096];
 
-  if (app_ns->netns)
-    {
-      if (!app_ns->sock_name)
-	app_ns->sock_name = format (0, "@vpp/session/%v%c", app_ns->ns_id, 0);
-      if (app_ns->sock_name[0] != '@')
-	return VNET_API_ERROR_INVALID_VALUE;
-    }
-  else
-    {
-      snprintf (dir, sizeof (dir), "%s%s", vlib_unix_get_runtime_dir (),
-		subdir);
-      err = vlib_unix_recursive_mkdir ((char *) dir);
-      if (err)
-	{
-	  clib_error_report (err);
-	  return VNET_API_ERROR_SYSCALL_ERROR_1;
-	}
+  snprintf (dir, sizeof (dir), "%s%s", vlib_unix_get_runtime_dir (), subdir);
 
-      if (!app_ns->sock_name)
-	app_ns->sock_name = format (0, "%s%v%c", dir, app_ns->ns_id, 0);
-    }
+  if (!app_ns->sock_name)
+    app_ns->sock_name = format (0, "%s%v%c", dir, app_ns->ns_id, 0);
 
   /*
    * Create and initialize socket to listen on
    */
   cs = appns_sapi_alloc_socket (app_ns);
-  cs->config = (char *) app_ns->sock_name;
+  cs->config = (char *) vec_dup (app_ns->sock_name);
   cs->flags = CLIB_SOCKET_F_IS_SERVER |
     CLIB_SOCKET_F_ALLOW_GROUP_WRITE |
     CLIB_SOCKET_F_SEQPACKET | CLIB_SOCKET_F_PASSCRED;
 
-  if ((err = clib_socket_init_netns (cs, app_ns->netns)))
+  if (clib_socket_prefix_get_type (cs->config) == CLIB_SOCKET_TYPE_UNIX)
+    {
+      err = vlib_unix_recursive_mkdir ((char *) dir);
+      if (err)
+	{
+	  clib_error_report (err);
+	  return SESSION_E_SYSCALL;
+	}
+    }
+
+  if ((err = clib_socket_init (cs)))
     {
       clib_error_report (err);
       return -1;
     }
 
-  if (!app_ns->netns && stat ((char *) app_ns->sock_name, &file_stat) == -1)
+  if (clib_socket_prefix_get_type (cs->config) == CLIB_SOCKET_TYPE_UNIX &&
+      stat ((char *) app_ns->sock_name, &file_stat) == -1)
     return -1;
 
   /*
@@ -1832,19 +1821,6 @@ appns_sapi_add_ns_socket (app_namespace_t * app_ns)
   return 0;
 }
 
-static void
-vl_api_application_tls_cert_add_t_handler (
-  vl_api_application_tls_cert_add_t *mp)
-{
-  /* deprecated */
-}
-
-static void
-vl_api_application_tls_key_add_t_handler (vl_api_application_tls_key_add_t *mp)
-{
-  /* deprecated */
-}
-
 #include <vnet/session/session.api.c>
 static clib_error_t *
 session_api_hookup (vlib_main_t *vm)