udp/session: refactor to support dgram mode

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

diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index e2c4794..8340fd8 100644 (file)
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -18,8 +18,6 @@
 
 #include <vnet/vnet.h>
 #include <vnet/ip/ip.h>
-#include <vppinfra/bihash_16_8.h>
-#include <vppinfra/bihash_48_8.h>
 #include <vnet/tcp/tcp_debug.h>
 
 /*
@@ -27,20 +25,34 @@
  */
 typedef struct _transport_connection
 {
-  ip46_address_t rmt_ip;       /**< Remote IP */
-  ip46_address_t lcl_ip;       /**< Local IP */
-  u16 lcl_port;                        /**< Local port */
-  u16 rmt_port;                        /**< Remote port */
-  u8 transport_proto;          /**< Protocol id */
-  u8 is_ip4;                   /**< Flag if IP4 connection */
-  u32 vrf;                     /**< FIB table id */
+  /** Connection ID */
+  union
+  {
+    /*
+     * Network connection ID tuple
+     */
+    struct
+    {
+      ip46_address_t rmt_ip;   /**< Remote IP */
+      ip46_address_t lcl_ip;   /**< Local IP */
+      u16 rmt_port;            /**< Remote port */
+      u16 lcl_port;            /**< Local port */
+      u8 is_ip4;               /**< Flag if IP4 connection */
+      u8 proto;                        /**< Protocol id */
+      u32 fib_index;           /**< Network namespace */
+    };
+    /*
+     * Opaque connection ID
+     */
+    u8 opaque_conn_id[42];
+  };
 
   u32 s_index;                 /**< Parent session index */
   u32 c_index;                 /**< Connection index in transport pool */
   u32 thread_index;            /**< Worker-thread index */
 
-  fib_node_index_t rmt_fei;    /**< FIB entry index for rmt */
-  dpo_id_t rmt_dpo;            /**< Forwarding DPO for rmt */
+  /*fib_node_index_t rmt_fei;
+     dpo_id_t rmt_dpo; */
 
 #if TRANSPORT_DEBUG
   elog_track_t elog_track;     /**< Event logging */
@@ -56,9 +68,8 @@ typedef struct _transport_connection
 #define c_rmt_ip6 connection.rmt_ip.ip6
 #define c_lcl_port connection.lcl_port
 #define c_rmt_port connection.rmt_port
-#define c_transport_proto connection.transport_proto
-#define c_vrf connection.vrf
-#define c_state connection.state
+#define c_proto connection.proto
+#define c_fib_index connection.fib_index
 #define c_s_index connection.s_index
 #define c_c_index connection.c_index
 #define c_is_ip4 connection.is_ip4
@@ -67,22 +78,61 @@ typedef struct _transport_connection
 #define c_cc_stat_tstamp connection.cc_stat_tstamp
 #define c_rmt_fei connection.rmt_fei
 #define c_rmt_dpo connection.rmt_dpo
+#define c_opaque_id connection.opaque_conn_id
 } transport_connection_t;
 
 typedef enum _transport_proto
 {
   TRANSPORT_PROTO_TCP,
-  TRANSPORT_PROTO_UDP
+  TRANSPORT_PROTO_UDP,
+  TRANSPORT_PROTO_SCTP,
+  TRANSPORT_PROTO_NONE,
+  TRANSPORT_PROTO_TLS,
+  TRANSPORT_PROTO_UDPC,
+  TRANSPORT_N_PROTO
 } transport_proto_t;
 
+u8 *format_transport_proto (u8 * s, va_list * args);
+u8 *format_transport_proto_short (u8 * s, va_list * args);
+uword unformat_transport_proto (unformat_input_t * input, va_list * args);
+
+#define foreach_transport_connection_fields                            \
+  _(u32, sw_if_index)  /**< interface endpoint is associated with  */  \
+  _(ip46_address_t, ip) /**< ip address */                             \
+  _(u32, fib_index)    /**< fib table endpoint is associated with */   \
+  _(u8, is_ip4)                /**< set if ip4 */                              \
+  _(u16, port)         /**< port in net order */                       \
+
 typedef struct _transport_endpoint
 {
-  ip46_address_t ip;   /** ip address */
-  u16 port;            /** port in net order */
-  u8 is_ip4;           /** 1 if ip4 */
-  u32 vrf;             /** fib table the endpoint is associated with */
+#define _(type, name) type name;
+  foreach_transport_connection_fields
+#undef _
 } transport_endpoint_t;
 
+typedef clib_bihash_24_8_t transport_endpoint_table_t;
+
+#define ENDPOINT_INVALID_INDEX ((u32)~0)
+
+always_inline u8
+transport_connection_fib_proto (transport_connection_t * tc)
+{
+  return tc->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+}
+
+always_inline u8
+transport_endpoint_fib_proto (transport_endpoint_t * tep)
+{
+  return tep->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
+}
+
+int transport_alloc_local_port (u8 proto, ip46_address_t * ip);
+int transport_alloc_local_endpoint (u8 proto, transport_endpoint_t * rmt,
+                                   ip46_address_t * lcl_addr,
+                                   u16 * lcl_port);
+void transport_endpoint_cleanup (u8 proto, ip46_address_t * lcl_ip, u16 port);
+void transport_init (void);
+
 #endif /* VNET_VNET_URI_TRANSPORT_H_ */
 
 /*