session: fix listener global endpoint lookup

Type: fix

Ensure listeners for app transport protocols are added to lookup tables
using their session endpoints instead of their transport connections,
which can override the network connection id in the transport connection.

Change-Id: I56fa3666bb1422c0799fc7143cd099751ff6e2e6
Signed-off-by: Florin Coras <fcoras@cisco.com>

5 files changed, 18 insertions, 7 deletions

diff --git a/src/vnet/session/application.c b/src/vnet/session/application.c
index 8d8e17c8943..646d6b6de2c 100644
--- a/src/vnet/session/application.c
+++ b/src/vnet/session/application.c
@@ -115,7 +115,7 @@ app_listener_lookup (application_t * app, session_endpoint_cfg_t * sep_ext)
     }
 
   fib_proto = session_endpoint_fib_proto (sep);
-  table_index = application_session_table (app, fib_proto);
+  table_index = session_lookup_get_index_for_fib (fib_proto, sep->fib_index);
   handle = session_lookup_endpoint_listener (table_index, sep, 1);
   if (handle != SESSION_INVALID_HANDLE)
     {
@@ -133,10 +133,10 @@ app_listener_alloc_and_init (application_t * app,
 {
   app_listener_t *app_listener;
   transport_connection_t *tc;
+  u32 al_index, table_index;
   session_handle_t lh;
   session_type_t st;
   session_t *ls = 0;
-  u32 al_index;
   int rv;
 
   app_listener = app_listener_alloc (app);
@@ -151,7 +151,6 @@ app_listener_alloc_and_init (application_t * app,
       && session_endpoint_is_local ((session_endpoint_t *) sep))
     {
       session_type_t local_st;
-      u32 table_index;
 
       local_st = session_type_from_proto_and_ip (TRANSPORT_PROTO_NONE,
 						 sep->is_ip4);
@@ -213,7 +212,16 @@ app_listener_alloc_and_init (application_t * app,
        * connections */
       tc = session_get_transport (ls);
       if (!(tc->flags & TRANSPORT_CONNECTION_F_NO_LOOKUP))
-	session_lookup_add_connection (tc, lh);
+	{
+	  fib_protocol_t fib_proto;
+	  fib_proto = session_endpoint_fib_proto ((session_endpoint_t *) sep);
+	  table_index = session_lookup_get_index_for_fib (fib_proto,
+							  sep->fib_index);
+	  ASSERT (table_index != SESSION_TABLE_INVALID_INDEX);
+	  session_lookup_add_session_endpoint (table_index,
+					       (session_endpoint_t *) sep,
+					       lh);
+	}
     }
 
   if (!ls)
diff --git a/src/vnet/session/application_local.c b/src/vnet/session/application_local.c
index 97cda12b7da..25fb39e094b 100644
--- a/src/vnet/session/application_local.c
+++ b/src/vnet/session/application_local.c
@@ -398,7 +398,7 @@ global_scope:
     return VNET_API_ERROR_APP_CONNECT_SCOPE;
 
   fib_proto = session_endpoint_fib_proto (sep);
-  table_index = application_session_table (app, fib_proto);
+  table_index = session_lookup_get_index_for_fib (fib_proto, sep->fib_index);
   ll = session_lookup_listener_wildcard (table_index, sep);
 
   if (ll)
diff --git a/src/vnet/session/session_lookup.c b/src/vnet/session/session_lookup.c
index b1c8fbbef8e..abaad5019fa 100644
--- a/src/vnet/session/session_lookup.c
+++ b/src/vnet/session/session_lookup.c
@@ -1317,7 +1317,7 @@ session_lookup_set_tables_appns (app_namespace_t * app_ns)
   for (fp = 0; fp < ARRAY_LEN (fib_index_to_table_index); fp++)
     {
       fib_index = app_namespace_get_fib_index (app_ns, fp);
-      st = session_table_get_for_fib_index (fp, fib_index);
+      st = session_table_get_or_alloc (fp, fib_index);
       if (st)
 	st->appns_index = app_namespace_index (app_ns);
     }
diff --git a/src/vnet/tls/tls.c b/src/vnet/tls/tls.c
index cfe2c3a3eae..6a4f99ee08d 100644
--- a/src/vnet/tls/tls.c
+++ b/src/vnet/tls/tls.c
@@ -615,11 +615,11 @@ tls_start_listen (u32 app_listener_index, transport_endpoint_t * tep)
       return -1;
     }
 
-  sep->transport_proto = TRANSPORT_PROTO_TCP;
   clib_memset (args, 0, sizeof (*args));
   args->app_index = tm->app_index;
   args->sep_ext = *sep;
   args->sep_ext.ns_index = app->ns_index;
+  args->sep_ext.transport_proto = TRANSPORT_PROTO_TCP;
   if (vnet_listen (args))
     return -1;
 
diff --git a/src/vnet/udp/udp.c b/src/vnet/udp/udp.c
index fbd9e980181..c2d6830bd7f 100644
--- a/src/vnet/udp/udp.c
+++ b/src/vnet/udp/udp.c
@@ -394,6 +394,9 @@ udpc_connection_listen (u32 session_index, transport_endpoint_t * lcl)
     return -1;
   listener = udp_listener_get (li_index);
   listener->flags |= UDP_CONN_F_CONNECTED;
+  /* Fake udp listener, i.e., make sure session layer adds a udp instead of
+   * udpc listener to the lookup table */
+  ((session_endpoint_cfg_t *) lcl)->transport_proto = TRANSPORT_PROTO_UDP;
   return li_index;
 }