tls: fix disconnects for sessions with pending data

[vpp.git] / src / vnet / session / session.h

diff --git a/src/vnet/session/session.h b/src/vnet/session/session.h
index b24e229..1e08ccc 100644 (file)
--- a/src/vnet/session/session.h
+++ b/src/vnet/session/session.h
@@ -24,7 +24,7 @@
 
 #define HALF_OPEN_LOOKUP_INVALID_VALUE ((u64)~0)
 #define INVALID_INDEX ((u32)~0)
-#define SESSION_PROXY_LISTENER_INDEX ((u32)~0 - 1)
+#define SESSION_PROXY_LISTENER_INDEX ((u8)~0 - 1)
 #define SESSION_LOCAL_HANDLE_PREFIX 0x7FFFFFFF
 
 /* TODO decide how much since we have pre-data as well */
@@ -33,15 +33,26 @@
 typedef enum
 {
   FIFO_EVENT_APP_RX,
+  SESSION_IO_EVT_CT_RX,
   FIFO_EVENT_APP_TX,
-  FIFO_EVENT_TIMEOUT,
+  SESSION_IO_EVT_CT_TX,
   FIFO_EVENT_DISCONNECT,
   FIFO_EVENT_BUILTIN_RX,
+  FIFO_EVENT_BUILTIN_TX,
   FIFO_EVENT_RPC,
-} fifo_event_type_t;
+  SESSION_CTRL_EVT_BOUND,
+  SESSION_CTRL_EVT_ACCEPTED,
+  SESSION_CTRL_EVT_ACCEPTED_REPLY,
+  SESSION_CTRL_EVT_CONNECTED,
+  SESSION_CTRL_EVT_CONNECTED_REPLY,
+  SESSION_CTRL_EVT_DISCONNECTED,
+  SESSION_CTRL_EVT_DISCONNECTED_REPLY,
+  SESSION_CTRL_EVT_RESET,
+  SESSION_CTRL_EVT_RESET_REPLY
+} session_evt_type_t;
 
 static inline const char *
-fifo_event_type_str (fifo_event_type_t et)
+fifo_event_type_str (session_evt_type_t et)
 {
   switch (et)
     {
@@ -49,8 +60,6 @@ fifo_event_type_str (fifo_event_type_t et)
       return "FIFO_EVENT_APP_RX";
     case FIFO_EVENT_APP_TX:
       return "FIFO_EVENT_APP_TX";
-    case FIFO_EVENT_TIMEOUT:
-      return "FIFO_EVENT_TIMEOUT";
     case FIFO_EVENT_DISCONNECT:
       return "FIFO_EVENT_DISCONNECT";
     case FIFO_EVENT_BUILTIN_RX:
@@ -62,6 +71,13 @@ fifo_event_type_str (fifo_event_type_t et)
     }
 }
 
+typedef enum
+{
+  SESSION_MQ_IO_EVT_RING,
+  SESSION_MQ_CTRL_EVT_RING,
+  SESSION_MQ_N_RINGS
+} session_mq_rings_e;
+
 #define foreach_session_input_error                                            \
 _(NO_SESSION, "No session drops")                                       \
 _(NO_LISTENER, "No listener for dst port drops")                        \
@@ -86,23 +102,30 @@ typedef struct
 {
   void *fp;
   void *arg;
-} rpc_args_t;
+} session_rpc_args_t;
 
 typedef u64 session_handle_t;
 
 /* *INDENT-OFF* */
-typedef CLIB_PACKED (struct {
+typedef struct
+{
+  u8 event_type;
+  u8 postponed;
   union
+  {
+    svm_fifo_t *fifo;
+    session_handle_t session_handle;
+    session_rpc_args_t rpc_args;
+    struct
     {
-      svm_fifo_t * fifo;
-      session_handle_t session_handle;
-      rpc_args_t rpc_args;
+      u8 data[0];
     };
-  u8 event_type;
-  u8 postponed;
-}) session_fifo_event_t;
+  };
+} __clib_packed session_event_t;
 /* *INDENT-ON* */
 
+#define SESSION_MSG_NULL { }
+
 typedef struct session_dgram_pre_hdr_
 {
   u32 data_length;
@@ -154,14 +177,14 @@ typedef struct _session_manager_main session_manager_main_t;
 
 typedef int
   (session_fifo_rx_fn) (vlib_main_t * vm, vlib_node_runtime_t * node,
-                       session_fifo_event_t * e0, stream_session_t * s0,
+                       session_event_t * e0, stream_session_t * s0,
                        int *n_tx_pkts);
 
 extern session_fifo_rx_fn session_tx_fifo_peek_and_snd;
 extern session_fifo_rx_fn session_tx_fifo_dequeue_and_snd;
 extern session_fifo_rx_fn session_tx_fifo_dequeue_internal;
 
-u8 session_node_lookup_fifo_event (svm_fifo_t * f, session_fifo_event_t * e);
+u8 session_node_lookup_fifo_event (svm_fifo_t * f, session_event_t * e);
 
 struct _session_manager_main
 {
@@ -181,19 +204,19 @@ struct _session_manager_main
   u32 **tx_buffers;
 
   /** Per worker-thread vector of partially read events */
-  session_fifo_event_t **free_event_vector;
+  session_event_t **free_event_vector;
 
   /** per-worker active event vectors */
-  session_fifo_event_t **pending_event_vector;
+  session_event_t **pending_event_vector;
 
   /** per-worker postponed disconnects */
-  session_fifo_event_t **pending_disconnects;
+  session_event_t **pending_disconnects;
 
   /** per-worker session context */
   session_tx_context_t *ctx;
 
   /** vpp fifo event queue */
-  svm_queue_t **vpp_event_queues;
+  svm_msg_q_t **vpp_event_queues;
 
   /** Event queues memfd segment initialized only if so configured */
   ssvm_private_t evt_qs_segment;
@@ -450,19 +473,26 @@ session_get_from_handle_safe (u64 handle)
 }
 
 always_inline u32
-stream_session_max_rx_enqueue (transport_connection_t * tc)
+transport_max_rx_enqueue (transport_connection_t * tc)
 {
   stream_session_t *s = session_get (tc->s_index, tc->thread_index);
   return svm_fifo_max_enqueue (s->server_rx_fifo);
 }
 
 always_inline u32
-stream_session_rx_fifo_size (transport_connection_t * tc)
+transport_rx_fifo_size (transport_connection_t * tc)
 {
   stream_session_t *s = session_get (tc->s_index, tc->thread_index);
   return s->server_rx_fifo->nitems;
 }
 
+always_inline u32
+transport_tx_fifo_size (transport_connection_t * tc)
+{
+  stream_session_t *s = session_get (tc->s_index, tc->thread_index);
+  return s->server_tx_fifo->nitems;
+}
+
 always_inline u32
 session_get_index (stream_session_t * s)
 {
@@ -492,7 +522,7 @@ session_clone_safe (u32 session_index, u32 thread_index)
 
 transport_connection_t *session_get_transport (stream_session_t * s);
 
-u32 stream_session_tx_fifo_max_dequeue (transport_connection_t * tc);
+u32 session_tx_fifo_max_dequeue (transport_connection_t * tc);
 
 int
 session_enqueue_stream_connection (transport_connection_t * tc,
@@ -510,6 +540,7 @@ int session_stream_connect_notify (transport_connection_t * tc, u8 is_fail);
 int session_dgram_connect_notify (transport_connection_t * tc,
                                  u32 old_thread_index,
                                  stream_session_t ** new_session);
+int session_dequeue_notify (stream_session_t * s);
 void stream_session_init_fifos_pointers (transport_connection_t * tc,
                                         u32 rx_pointer, u32 tx_pointer);
 
@@ -520,14 +551,18 @@ void stream_session_reset_notify (transport_connection_t * tc);
 int stream_session_accept (transport_connection_t * tc, u32 listener_index,
                           u8 notify);
 int session_open (u32 app_index, session_endpoint_t * tep, u32 opaque);
-int stream_session_listen (stream_session_t * s, session_endpoint_t * tep);
-int stream_session_stop_listen (stream_session_t * s);
+int session_listen (stream_session_t * s, session_endpoint_extended_t * sep);
+int session_stop_listen (stream_session_t * s);
 void stream_session_disconnect (stream_session_t * s);
 void stream_session_disconnect_transport (stream_session_t * s);
 void stream_session_cleanup (stream_session_t * s);
-void session_send_session_evt_to_thread (u64 session_handle,
-                                        fifo_event_type_t evt_type,
-                                        u32 thread_index);
+int session_send_io_evt_to_thread (svm_fifo_t * f,
+                                  session_evt_type_t evt_type);
+int session_send_io_evt_to_thread_custom (void *data, u32 thread_index,
+                                         session_evt_type_t evt_type);
+void session_send_rpc_evt_to_thread (u32 thread_index, void *fp,
+                                    void *rpc_args);
+
 ssvm_private_t *session_manager_get_evt_q_segment (void);
 
 u8 *format_stream_session (u8 * s, va_list * args);
@@ -539,9 +574,18 @@ void session_register_transport (transport_proto_t transport_proto,
                                 const transport_proto_vft_t * vft, u8 is_ip4,
                                 u32 output_node);
 
+always_inline void
+transport_add_tx_event (transport_connection_t * tc)
+{
+  stream_session_t *s = session_get (tc->s_index, tc->thread_index);
+  if (svm_fifo_has_event (s->server_tx_fifo))
+    return;
+  session_send_io_evt_to_thread (s->server_tx_fifo, FIFO_EVENT_APP_TX);
+}
+
 clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en);
 
-always_inline svm_queue_t *
+always_inline svm_msg_q_t *
 session_manager_get_vpp_event_queue (u32 thread_index)
 {
   return session_manager_main.vpp_event_queues[thread_index];