session: first approximation implementation of tls

[vpp.git] / src / vnet / session / transport.c

diff --git a/src/vnet/session/transport.c b/src/vnet/session/transport.c
index fc722e4..797bdad 100644 (file)
--- a/src/vnet/session/transport.c
+++ b/src/vnet/session/transport.c
@@ -42,6 +42,68 @@ static transport_endpoint_t *local_endpoints;
  */
 static clib_spinlock_t local_endpoints_lock;
 
+u8 *
+format_transport_proto (u8 * s, va_list * args)
+{
+  u32 transport_proto = va_arg (*args, u32);
+  switch (transport_proto)
+    {
+    case TRANSPORT_PROTO_TCP:
+      s = format (s, "TCP");
+      break;
+    case TRANSPORT_PROTO_UDP:
+      s = format (s, "UDP");
+      break;
+    case TRANSPORT_PROTO_SCTP:
+      s = format (s, "SCTP");
+      break;
+    }
+  return s;
+}
+
+u8 *
+format_transport_proto_short (u8 * s, va_list * args)
+{
+  u32 transport_proto = va_arg (*args, u32);
+  switch (transport_proto)
+    {
+    case TRANSPORT_PROTO_TCP:
+      s = format (s, "T");
+      break;
+    case TRANSPORT_PROTO_UDP:
+      s = format (s, "U");
+      break;
+    case TRANSPORT_PROTO_SCTP:
+      s = format (s, "S");
+      break;
+    }
+  return s;
+}
+
+uword
+unformat_transport_proto (unformat_input_t * input, va_list * args)
+{
+  u32 *proto = va_arg (*args, u32 *);
+  if (unformat (input, "tcp"))
+    *proto = TRANSPORT_PROTO_TCP;
+  else if (unformat (input, "TCP"))
+    *proto = TRANSPORT_PROTO_TCP;
+  else if (unformat (input, "udp"))
+    *proto = TRANSPORT_PROTO_UDP;
+  else if (unformat (input, "UDP"))
+    *proto = TRANSPORT_PROTO_UDP;
+  else if (unformat (input, "sctp"))
+    *proto = TRANSPORT_PROTO_SCTP;
+  else if (unformat (input, "SCTP"))
+    *proto = TRANSPORT_PROTO_SCTP;
+  else if (unformat (input, "tls"))
+    *proto = TRANSPORT_PROTO_TLS;
+  else if (unformat (input, "TLS"))
+    *proto = TRANSPORT_PROTO_TLS;
+  else
+    return 0;
+  return 1;
+}
 
 u32
 transport_endpoint_lookup (transport_endpoint_table_t * ht, u8 proto,
@@ -91,22 +153,23 @@ transport_endpoint_table_del (transport_endpoint_table_t * ht, u8 proto,
 /**
  * Register transport virtual function table.
  *
- * @param type - session type (not protocol type)
- * @param vft - virtual function table
+ * @param transport_proto - transport protocol type (i.e., TCP, UDP ..)
+ * @param vft - virtual function table for transport proto
+ * @param fib_proto - network layer protocol
+ * @param output_node - output node index that session layer will hand off
+ *                     buffers to, for requested fib proto
  */
 void
-transport_register_protocol (transport_proto_t transport_proto, u8 is_ip4,
-                            const transport_proto_vft_t * vft)
+transport_register_protocol (transport_proto_t transport_proto,
+                            const transport_proto_vft_t * vft,
+                            fib_protocol_t fib_proto, u32 output_node)
 {
-  u8 session_type;
-  session_type = session_type_from_proto_and_ip (transport_proto, is_ip4);
+  u8 is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
 
-  vec_validate (tp_vfts, session_type);
-  tp_vfts[session_type] = *vft;
+  vec_validate (tp_vfts, transport_proto);
+  tp_vfts[transport_proto] = *vft;
 
-  /* If an offset function is provided, then peek instead of dequeue */
-  session_manager_set_transport_rx_fn (session_type,
-                                      vft->tx_fifo_offset != 0);
+  session_register_transport (transport_proto, vft, is_ip4, output_node);
 }
 
 /**
@@ -115,11 +178,11 @@ transport_register_protocol (transport_proto_t transport_proto, u8 is_ip4,
  * @param type - session type (not protocol type)
  */
 transport_proto_vft_t *
-transport_protocol_get_vft (u8 session_type)
+transport_protocol_get_vft (transport_proto_t transport_proto)
 {
-  if (session_type >= vec_len (tp_vfts))
+  if (transport_proto >= vec_len (tp_vfts))
     return 0;
-  return &tp_vfts[session_type];
+  return &tp_vfts[transport_proto];
 }
 
 #define PORT_MASK ((1 << 16)- 1)
@@ -251,6 +314,13 @@ transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
     {
       ip4_address_t *ip4;
       ip4 = ip_interface_get_first_ip (sw_if_index, 1);
+      if (!ip4)
+       {
+         clib_warning ("no routable ip4 address on %U",
+                       format_vnet_sw_if_index_name, vnet_get_main (),
+                       sw_if_index);
+         return -1;
+       }
       lcl_addr->ip4.as_u32 = ip4->as_u32;
     }
   else
@@ -278,20 +348,46 @@ transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
   return 0;
 }
 
+void
+transport_update_time (f64 time_now, u8 thread_index)
+{
+  transport_proto_vft_t *vft;
+  vec_foreach (vft, tp_vfts)
+  {
+    if (vft->update_time)
+      (vft->update_time) (time_now, thread_index);
+  }
+}
+
+void
+transport_enable_disable (vlib_main_t * vm, u8 is_en)
+{
+  transport_proto_vft_t *vft;
+  vec_foreach (vft, tp_vfts)
+  {
+    if (vft->enable)
+      (vft->enable) (vm, is_en);
+  }
+}
+
 void
 transport_init (void)
 {
   vlib_thread_main_t *vtm = vlib_get_thread_main ();
-  u32 local_endpoints_table_buckets = 250000;
-  u32 local_endpoints_table_memory = 512 << 20;
+  session_manager_main_t *smm = vnet_get_session_manager_main ();
   u32 num_threads;
 
+  if (smm->local_endpoints_table_buckets == 0)
+    smm->local_endpoints_table_buckets = 250000;
+  if (smm->local_endpoints_table_memory == 0)
+    smm->local_endpoints_table_memory = 512 << 20;
+
   /* Initialize [port-allocator] random number seed */
   port_allocator_seed = (u32) clib_cpu_time_now ();
 
   clib_bihash_init_24_8 (&local_endpoints_table, "local endpoints table",
-                        local_endpoints_table_buckets,
-                        local_endpoints_table_memory);
+                        smm->local_endpoints_table_buckets,
+                        smm->local_endpoints_table_memory);
   num_threads = 1 /* main thread */  + vtm->n_threads;
   if (num_threads > 1)
     clib_spinlock_init (&local_endpoints_lock);