vcl/ldp: add locked sessions shim layer

[vpp.git] / src / vcl / vcl_private.h

diff --git a/src/vcl/vcl_private.h b/src/vcl/vcl_private.h
index 0420322..0315a62 100644 (file)
--- a/src/vcl/vcl_private.h
+++ b/src/vcl/vcl_private.h
@@ -67,13 +67,14 @@ typedef enum
   STATE_CONNECT = 0x02,
   STATE_LISTEN = 0x04,
   STATE_ACCEPT = 0x08,
-  STATE_CLOSE_ON_EMPTY = 0x10,
+  STATE_VPP_CLOSING = 0x10,
   STATE_DISCONNECT = 0x20,
-  STATE_FAILED = 0x40
+  STATE_FAILED = 0x40,
+  STATE_UPDATED = 0x80,
 } session_state_t;
 
-#define SERVER_STATE_OPEN  (STATE_ACCEPT|STATE_CLOSE_ON_EMPTY)
-#define CLIENT_STATE_OPEN  (STATE_CONNECT|STATE_CLOSE_ON_EMPTY)
+#define SERVER_STATE_OPEN  (STATE_ACCEPT|STATE_VPP_CLOSING)
+#define CLIENT_STATE_OPEN  (STATE_CONNECT|STATE_VPP_CLOSING)
 #define STATE_OPEN (SERVER_STATE_OPEN | CLIENT_STATE_OPEN)
 
 typedef struct epoll_event vppcom_epoll_event_t;
@@ -95,6 +96,9 @@ typedef struct
   ip46_address_t ip46;
 } vppcom_ip46_t;
 
+#define VCL_ACCEPTED_F_CLOSED  (1 << 0)
+#define VCL_ACCEPTED_F_RESET   (1 << 1)
+
 typedef struct vcl_session_msg
 {
   u32 next;
@@ -102,6 +106,7 @@ typedef struct vcl_session_msg
   {
     session_accepted_msg_t accepted_msg;
   };
+  u32 flags;
 } vcl_session_msg_t;
 
 enum
@@ -120,6 +125,8 @@ enum
   VCL_SESS_ATTR_TCP_NODELAY,   // SOL_TCP,TCP_NODELAY
   VCL_SESS_ATTR_TCP_KEEPIDLE,  // SOL_TCP,TCP_KEEPIDLE
   VCL_SESS_ATTR_TCP_KEEPINTVL, // SOL_TCP,TCP_KEEPINTVL
+  VCL_SESS_ATTR_SHUT_RD,
+  VCL_SESS_ATTR_SHUT_WR,
   VCL_SESS_ATTR_MAX
 } vppcom_session_attr_t;
 
@@ -140,6 +147,7 @@ typedef struct vcl_shared_session_
 {
   u32 ss_index;
   u32 *workers;
+  u32 session_index;
 } vcl_shared_session_t;
 
 typedef struct
@@ -155,6 +163,7 @@ typedef struct
   u32 sm_seg_index;
   u32 client_context;
   u64 vpp_handle;
+  u32 vpp_thread_index;
 
   /* Socket configuration state */
   u8 is_vep;
@@ -175,10 +184,10 @@ typedef struct
 
 typedef struct vppcom_cfg_t_
 {
-  u64 heapsize;
+  uword heapsize;
   u32 max_workers;
   u32 vpp_api_q_length;
-  u64 segment_baseva;
+  uword segment_baseva;
   u32 segment_size;
   u32 add_segment_size;
   u32 preallocated_fifo_pairs;
@@ -282,11 +291,16 @@ typedef struct vcl_worker_
   /** Vector of unhandled events */
   session_event_t *unhandled_evts_vector;
 
+  u32 *pending_session_wrk_updates;
+
   /** Used also as a thread stop key buffer */
   pthread_t thread_id;
 
   /** Current pid, may be different from main_pid if forked child */
   pid_t current_pid;
+
+  u32 forked_child;
+
 } vcl_worker_t;
 
 typedef struct vppcom_main_t_
@@ -309,9 +323,6 @@ typedef struct vppcom_main_t_
   /** VCL configuration */
   vppcom_cfg_t cfg;
 
-  /** Flag indicating that a new segment is being mounted */
-  volatile u32 mounting_segment;
-
   volatile u32 forking;
 
   /** Workers */
@@ -320,7 +331,17 @@ typedef struct vppcom_main_t_
   /** Lock to protect worker registrations */
   clib_spinlock_t workers_lock;
 
+  /** Pool of shared sessions */
   vcl_shared_session_t *shared_sessions;
+
+  /** Lock to protect segment hash table */
+  clib_rwlock_t segment_table_lock;
+
+  /** Mapped segments table */
+  uword *segment_table;
+
+  svm_fifo_segment_main_t segment_main;
+
 #ifdef VCL_ELOG
   /* VPP Event-logger */
   elog_main_t elog_main;
@@ -335,6 +356,8 @@ typedef struct vppcom_main_t_
 extern vppcom_main_t *vcm;
 
 #define VCL_INVALID_SESSION_INDEX ((u32)~0)
+#define VCL_INVALID_SEGMENT_INDEX ((u32)~0)
+#define VCL_INVALID_SEGMENT_HANDLE ((u64)~0)
 
 static inline vcl_session_t *
 vcl_session_alloc (vcl_worker_t * wrk)
@@ -495,25 +518,49 @@ int vcl_mq_epoll_add_evfd (vcl_worker_t * wrk, svm_msg_q_t * mq);
 int vcl_mq_epoll_del_evfd (vcl_worker_t * wrk, u32 mqc_index);
 
 vcl_worker_t *vcl_worker_alloc_and_init (void);
-void vcl_worker_cleanup (void);
+void vcl_worker_cleanup (vcl_worker_t * wrk, u8 notify_vpp);
 int vcl_worker_register_with_vpp (void);
 int vcl_worker_set_bapi (void);
-void vcl_worker_share_sessions (u32 parent_wrk_index);
+void vcl_worker_share_sessions (vcl_worker_t * parent_wrk);
 int vcl_worker_unshare_session (vcl_worker_t * wrk, vcl_session_t * s);
+vcl_shared_session_t *vcl_shared_session_get (u32 ss_index);
 int vcl_session_get_refcnt (vcl_session_t * s);
 
+void vcl_segment_table_add (u64 segment_handle, u32 svm_segment_index);
+u32 vcl_segment_table_lookup (u64 segment_handle);
+void vcl_segment_table_del (u64 segment_handle);
+
 static inline vcl_worker_t *
 vcl_worker_get (u32 wrk_index)
 {
   return pool_elt_at_index (vcm->workers, wrk_index);
 }
 
+static inline vcl_worker_t *
+vcl_worker_get_if_valid (u32 wrk_index)
+{
+  if (pool_is_free_index (vcm->workers, wrk_index))
+    return 0;
+  return pool_elt_at_index (vcm->workers, wrk_index);
+}
+
 static inline vcl_worker_t *
 vcl_worker_get_current (void)
 {
   return vcl_worker_get (vcl_get_worker_index ());
 }
 
+static inline svm_msg_q_t *
+vcl_session_vpp_evt_q (vcl_worker_t * wrk, vcl_session_t * s)
+{
+  if (vcl_session_is_ct (s))
+    return wrk->vpp_event_queues[0];
+  else
+    return wrk->vpp_event_queues[s->vpp_thread_index];
+}
+
+void vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
+                                    u32 wrk_index);
 /*
  * VCL Binary API
  */
@@ -527,13 +574,18 @@ void vppcom_send_disconnect_session (u64 vpp_handle);
 void vppcom_send_bind_sock (vcl_session_t * session);
 void vppcom_send_unbind_sock (u64 vpp_handle);
 void vppcom_api_hookup (void);
-void vppcom_send_accept_session_reply (u64 vpp_handle, u32 context, int rv);
+void vppcom_send_application_tls_cert_add (vcl_session_t * session,
+                                          char *cert, u32 cert_len);
+void vppcom_send_application_tls_key_add (vcl_session_t * session, char *key,
+                                         u32 key_len);
 void vcl_send_app_worker_add_del (u8 is_add);
+void vcl_send_child_worker_del (vcl_worker_t * wrk);
 
 u32 vcl_max_nsid_len (void);
 
 u8 *format_api_error (u8 * s, va_list * args);
 
+void vls_init ();
 #endif /* SRC_VCL_VCL_PRIVATE_H_ */
 
 /*