session/session_node.c
session/transport.c
session/application.c
+ session/application_worker.c
session/session_cli.c
session/application_interface.c
session/application_namespace.c
return application_get_worker (app, wrk_index);
}
-app_worker_t *
-app_worker_alloc (application_t * app)
-{
- app_worker_t *app_wrk;
- pool_get (app_main.workers, app_wrk);
- clib_memset (app_wrk, 0, sizeof (*app_wrk));
- app_wrk->wrk_index = app_wrk - app_main.workers;
- app_wrk->app_index = app->app_index;
- app_wrk->wrk_map_index = ~0;
- app_wrk->connects_seg_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
- app_wrk->first_segment_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
- app_wrk->local_segment_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
- APP_DBG ("New app %v worker %u", app_get_name (app), app_wrk->wrk_index);
- return app_wrk;
-}
-
-app_worker_t *
-app_worker_get (u32 wrk_index)
-{
- return pool_elt_at_index (app_main.workers, wrk_index);
-}
-
-app_worker_t *
-app_worker_get_if_valid (u32 wrk_index)
-{
- if (pool_is_free_index (app_main.workers, wrk_index))
- return 0;
- return pool_elt_at_index (app_main.workers, wrk_index);
-}
-
-void
-app_worker_free (app_worker_t * app_wrk)
-{
- application_t *app = application_get (app_wrk->app_index);
- vnet_unbind_args_t _a, *a = &_a;
- u64 handle, *handles = 0;
- segment_manager_t *sm;
- u32 sm_index;
- int i;
-
- /*
- * Listener cleanup
- */
-
- /* *INDENT-OFF* */
- hash_foreach (handle, sm_index, app_wrk->listeners_table,
- ({
- vec_add1 (handles, handle);
- sm = segment_manager_get (sm_index);
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
- }));
- /* *INDENT-ON* */
-
- for (i = 0; i < vec_len (handles); i++)
- {
- a->app_index = app->app_index;
- a->wrk_map_index = app_wrk->wrk_map_index;
- a->handle = handles[i];
- /* seg manager is removed when unbind completes */
- vnet_unbind (a);
- }
-
- /*
- * Connects segment manager cleanup
- */
-
- if (app_wrk->connects_seg_manager != APP_INVALID_SEGMENT_MANAGER_INDEX)
- {
- sm = segment_manager_get (app_wrk->connects_seg_manager);
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
- segment_manager_init_del (sm);
- }
-
- /* If first segment manager is used by a listener */
- if (app_wrk->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX
- && app_wrk->first_segment_manager != app_wrk->connects_seg_manager)
- {
- sm = segment_manager_get (app_wrk->first_segment_manager);
- sm->first_is_protected = 0;
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
- /* .. and has no fifos, e.g. it might be used for redirected sessions,
- * remove it */
- if (!segment_manager_has_fifos (sm))
- segment_manager_del (sm);
- }
-
- /*
- * Local sessions
- */
- app_worker_local_sessions_free (app_wrk);
-
- pool_put (app_main.workers, app_wrk);
- if (CLIB_DEBUG)
- clib_memset (app_wrk, 0xfe, sizeof (*app_wrk));
-}
-
int
-app_worker_alloc_and_init (application_t * app, app_worker_t ** wrk)
+application_alloc_worker_and_init (application_t * app, app_worker_t ** wrk)
{
app_worker_map_t *wrk_map;
app_worker_t *app_wrk;
return 0;
}
-application_t *
-app_worker_get_app (u32 wrk_index)
-{
- app_worker_t *app_wrk;
- app_wrk = app_worker_get_if_valid (wrk_index);
- if (!app_wrk)
- return 0;
- return application_get_if_valid (app_wrk->app_index);
-}
-
-static segment_manager_t *
-app_worker_alloc_segment_manager (app_worker_t * app_wrk)
-{
- segment_manager_t *sm = 0;
-
- /* If the first segment manager is not in use, don't allocate a new one */
- if (app_wrk->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX
- && app_wrk->first_segment_manager_in_use == 0)
- {
- sm = segment_manager_get (app_wrk->first_segment_manager);
- app_wrk->first_segment_manager_in_use = 1;
- return sm;
- }
-
- sm = segment_manager_new ();
- sm->app_wrk_index = app_wrk->wrk_index;
-
- return sm;
-}
-
-int
-app_worker_start_listen (app_worker_t * app_wrk, session_t * ls)
-{
- segment_manager_t *sm;
-
- /* Allocate segment manager. All sessions derived out of a listen session
- * have fifos allocated by the same segment manager. */
- if (!(sm = app_worker_alloc_segment_manager (app_wrk)))
- return -1;
-
- /* Add to app's listener table. Useful to find all child listeners
- * when app goes down, although, just for unbinding this is not needed */
- hash_set (app_wrk->listeners_table, listen_session_get_handle (ls),
- segment_manager_index (sm));
-
- if (!ls->rx_fifo
- && session_transport_service_type (ls) == TRANSPORT_SERVICE_CL)
- {
- if (session_alloc_fifos (sm, ls))
- return -1;
- }
- return 0;
-}
-
-int
-app_worker_stop_listen (app_worker_t * app_wrk, session_handle_t handle)
-{
- segment_manager_t *sm;
- uword *sm_indexp;
-
- sm_indexp = hash_get (app_wrk->listeners_table, handle);
- if (PREDICT_FALSE (!sm_indexp))
- {
- clib_warning ("listener handle was removed %llu!", handle);
- return -1;
- }
-
- sm = segment_manager_get (*sm_indexp);
- if (app_wrk->first_segment_manager == *sm_indexp)
- {
- /* Delete sessions but don't remove segment manager */
- app_wrk->first_segment_manager_in_use = 0;
- segment_manager_del_sessions (sm);
- }
- else
- {
- segment_manager_init_del (sm);
- }
- hash_unset (app_wrk->listeners_table, handle);
-
- return 0;
-}
-
-int
-app_worker_own_session (app_worker_t * app_wrk, session_t * s)
-{
- segment_manager_t *sm;
- svm_fifo_t *rxf, *txf;
-
- if (s->session_state == SESSION_STATE_LISTENING)
- {
- app_worker_t *old_wrk = app_worker_get (s->app_wrk_index);
- u64 lsh = listen_session_get_handle (s);
- app_listener_t *app_listener;
- application_t *app;
-
- if (!old_wrk)
- return -1;
-
- hash_unset (old_wrk->listeners_table, lsh);
- if (!(sm = app_worker_alloc_segment_manager (app_wrk)))
- return -1;
-
- hash_set (app_wrk->listeners_table, lsh, segment_manager_index (sm));
- s->app_wrk_index = app_wrk->wrk_index;
-
- app = application_get (old_wrk->app_index);
- if (!app)
- return -1;
-
- app_listener = app_listener_get (app, s->listener_db_index);
- app_listener->workers = clib_bitmap_set (app_listener->workers,
- app_wrk->wrk_map_index, 1);
- app_listener->workers = clib_bitmap_set (app_listener->workers,
- old_wrk->wrk_map_index, 0);
- return 0;
- }
-
- s->app_wrk_index = app_wrk->wrk_index;
-
- rxf = s->rx_fifo;
- txf = s->tx_fifo;
-
- if (!rxf || !txf)
- return 0;
-
- s->rx_fifo = 0;
- s->tx_fifo = 0;
-
- sm = app_worker_get_or_alloc_connect_segment_manager (app_wrk);
- if (session_alloc_fifos (sm, s))
- return -1;
-
- if (!svm_fifo_is_empty (rxf))
- {
- clib_memcpy_fast (s->rx_fifo->data, rxf->data, rxf->nitems);
- s->rx_fifo->head = rxf->head;
- s->rx_fifo->tail = rxf->tail;
- s->rx_fifo->cursize = rxf->cursize;
- }
-
- if (!svm_fifo_is_empty (txf))
- {
- clib_memcpy_fast (s->tx_fifo->data, txf->data, txf->nitems);
- s->tx_fifo->head = txf->head;
- s->tx_fifo->tail = txf->tail;
- s->tx_fifo->cursize = txf->cursize;
- }
-
- segment_manager_dealloc_fifos (rxf->segment_index, rxf, txf);
-
- return 0;
-}
-
/**
* Start listening local transport endpoint for requested transport.
*
return -1;
}
+int
+application_change_listener_owner (session_t * s, app_worker_t * app_wrk)
+{
+ app_worker_t *old_wrk = app_worker_get (s->app_wrk_index);
+ app_listener_t *app_listener;
+ application_t *app;
+
+ if (!old_wrk)
+ return -1;
+
+ hash_unset (old_wrk->listeners_table, listen_session_get_handle (s));
+ if (session_transport_service_type (s) == TRANSPORT_SERVICE_CL
+ && s->rx_fifo)
+ segment_manager_dealloc_fifos (s->rx_fifo->segment_index, s->rx_fifo,
+ s->tx_fifo);
+
+ if (app_worker_start_listen (app_wrk, s))
+ return -1;
+
+ s->app_wrk_index = app_wrk->wrk_index;
+
+ app = application_get (old_wrk->app_index);
+ if (!app)
+ return -1;
+
+ app_listener = app_listener_get (app, s->listener_db_index);
+ app_listener->workers = clib_bitmap_set (app_listener->workers,
+ app_wrk->wrk_map_index, 1);
+ app_listener->workers = clib_bitmap_set (app_listener->workers,
+ old_wrk->wrk_map_index, 0);
+ return 0;
+}
+
/**
* Stop listening on session associated to handle
*
return 0;
}
-int
-app_worker_open_session (app_worker_t * app, session_endpoint_t * sep,
- u32 api_context)
-{
- int rv;
-
- /* Make sure we have a segment manager for connects */
- app_worker_alloc_connects_segment_manager (app);
-
- if ((rv = session_open (app->wrk_index, sep, api_context)))
- return rv;
-
- return 0;
-}
-
-int
-app_worker_alloc_connects_segment_manager (app_worker_t * app_wrk)
-{
- segment_manager_t *sm;
-
- if (app_wrk->connects_seg_manager == APP_INVALID_SEGMENT_MANAGER_INDEX)
- {
- sm = app_worker_alloc_segment_manager (app_wrk);
- if (sm == 0)
- return -1;
- app_wrk->connects_seg_manager = segment_manager_index (sm);
- }
- return 0;
-}
-
-segment_manager_t *
-app_worker_get_connect_segment_manager (app_worker_t * app)
-{
- ASSERT (app->connects_seg_manager != (u32) ~ 0);
- return segment_manager_get (app->connects_seg_manager);
-}
-
-segment_manager_t *
-app_worker_get_or_alloc_connect_segment_manager (app_worker_t * app_wrk)
-{
- if (app_wrk->connects_seg_manager == (u32) ~ 0)
- app_worker_alloc_connects_segment_manager (app_wrk);
- return segment_manager_get (app_wrk->connects_seg_manager);
-}
-
-segment_manager_t *
-app_worker_get_listen_segment_manager (app_worker_t * app,
- session_t * listener)
-{
- uword *smp;
- smp = hash_get (app->listeners_table, listen_session_get_handle (listener));
- ASSERT (smp != 0);
- return segment_manager_get (*smp);
-}
-
clib_error_t *
vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a)
{
if (a->is_add)
{
- if ((rv = app_worker_alloc_and_init (app, &app_wrk)))
+ if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
return clib_error_return_code (0, rv, 0, "app wrk init: %d", rv);
/* Map worker api index to the app */
return 0;
}
-segment_manager_t *
-application_get_local_segment_manager (app_worker_t * app)
-{
- return segment_manager_get (app->local_segment_manager);
-}
-
-segment_manager_t *
-application_get_local_segment_manager_w_session (app_worker_t * app,
- local_session_t * ls)
-{
- session_t *listener;
- if (application_local_session_listener_has_transport (ls))
- {
- listener = listen_session_get (ls->listener_index);
- return app_worker_get_listen_segment_manager (app, listener);
- }
- return segment_manager_get (app->local_segment_manager);
-}
-
int
application_is_proxy (application_t * app)
{
return app->flags & APP_OPTIONS_FLAGS_USE_MQ_FOR_CTRL_MSGS;
}
-/**
- * Send an API message to the external app, to map new segment
- */
-int
-app_worker_add_segment_notify (u32 app_wrk_index, u64 segment_handle)
-{
- app_worker_t *app_wrk = app_worker_get (app_wrk_index);
- application_t *app = application_get (app_wrk->app_index);
- return app->cb_fns.add_segment_callback (app_wrk->api_client_index,
- segment_handle);
-}
-
-u32
-application_n_listeners (app_worker_t * app)
-{
- return hash_elts (app->listeners_table);
-}
-
-session_t *
-app_worker_first_listener (app_worker_t * app, u8 fib_proto,
- u8 transport_proto)
-{
- session_t *listener;
- u64 handle;
- u32 sm_index;
- u8 sst;
-
- sst = session_type_from_proto_and_ip (transport_proto,
- fib_proto == FIB_PROTOCOL_IP4);
-
- /* *INDENT-OFF* */
- hash_foreach (handle, sm_index, app->listeners_table, ({
- listener = listen_session_get_from_handle (handle);
- if (listener->session_type == sst
- && listener->enqueue_epoch != SESSION_PROXY_LISTENER_INDEX)
- return listener;
- }));
- /* *INDENT-ON* */
-
- return 0;
-}
-
-u8
-app_worker_application_is_builtin (app_worker_t * app_wrk)
-{
- return app_wrk->app_is_builtin;
-}
-
-session_t *
-application_proxy_listener (app_worker_t * app, u8 fib_proto,
- u8 transport_proto)
-{
- session_t *listener;
- u64 handle;
- u32 sm_index;
- u8 sst;
-
- sst = session_type_from_proto_and_ip (transport_proto,
- fib_proto == FIB_PROTOCOL_IP4);
-
- /* *INDENT-OFF* */
- hash_foreach (handle, sm_index, app->listeners_table, ({
- listener = listen_session_get_from_handle (handle);
- if (listener->session_type == sst
- && listener->enqueue_epoch == SESSION_PROXY_LISTENER_INDEX)
- return listener;
- }));
- /* *INDENT-ON* */
-
- return 0;
-}
-
static clib_error_t *
application_start_stop_proxy_fib_proto (application_t * app, u8 fib_proto,
u8 transport_proto, u8 is_start)
}
else
{
- s = application_proxy_listener (app_wrk, fib_proto, transport_proto);
+ s = app_worker_proxy_listener (app_wrk, fib_proto, transport_proto);
ASSERT (s);
}
return &app->sm_properties;
}
-static inline int
-app_enqueue_evt (svm_msg_q_t * mq, svm_msg_q_msg_t * msg, u8 lock)
+local_session_t *
+application_local_listen_session_alloc (application_t * app)
{
- if (PREDICT_FALSE (svm_msg_q_is_full (mq)))
- {
- clib_warning ("evt q full");
- svm_msg_q_free_msg (mq, msg);
- if (lock)
- svm_msg_q_unlock (mq);
- return -1;
- }
-
- if (lock)
- {
- svm_msg_q_add_and_unlock (mq, msg);
- return 0;
- }
+ local_session_t *ll;
+ pool_get (app->local_listen_sessions, ll);
+ clib_memset (ll, 0, sizeof (*ll));
+ return ll;
+}
- /* Even when not locking the ring, we must wait for queue mutex */
- if (svm_msg_q_add (mq, msg, SVM_Q_WAIT))
- {
- clib_warning ("msg q add returned");
- return -1;
- }
- return 0;
+u32
+application_local_listener_index (application_t * app, local_session_t * ll)
+{
+ return (ll - app->local_listen_sessions);
}
-static inline int
-app_send_io_evt_rx (app_worker_t * app_wrk, session_t * s, u8 lock)
+void
+application_local_listen_session_free (application_t * app,
+ local_session_t * ll)
{
- session_event_t *evt;
- svm_msg_q_msg_t msg;
- svm_msg_q_t *mq;
-
- if (PREDICT_FALSE (s->session_state != SESSION_STATE_READY
- && s->session_state != SESSION_STATE_LISTENING))
- {
- /* Session is closed so app will never clean up. Flush rx fifo */
- if (s->session_state == SESSION_STATE_CLOSED)
- svm_fifo_dequeue_drop_all (s->rx_fifo);
- return 0;
- }
-
- if (app_worker_application_is_builtin (app_wrk))
- {
- application_t *app = application_get (app_wrk->app_index);
- return app->cb_fns.builtin_app_rx_callback (s);
- }
-
- if (svm_fifo_has_event (s->rx_fifo) || svm_fifo_is_empty (s->rx_fifo))
- return 0;
-
- mq = app_wrk->event_queue;
- if (lock)
- svm_msg_q_lock (mq);
-
- if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
- {
- clib_warning ("evt q rings full");
- if (lock)
- svm_msg_q_unlock (mq);
- return -1;
- }
-
- msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- ASSERT (!svm_msg_q_msg_is_invalid (&msg));
-
- evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
- evt->fifo = s->rx_fifo;
- evt->event_type = FIFO_EVENT_APP_RX;
-
- (void) svm_fifo_set_event (s->rx_fifo);
-
- if (app_enqueue_evt (mq, &msg, lock))
- return -1;
- return 0;
-}
-
-static inline int
-app_send_io_evt_tx (app_worker_t * app_wrk, session_t * s, u8 lock)
-{
- svm_msg_q_t *mq;
- session_event_t *evt;
- svm_msg_q_msg_t msg;
-
- if (app_worker_application_is_builtin (app_wrk))
- return 0;
-
- mq = app_wrk->event_queue;
- if (lock)
- svm_msg_q_lock (mq);
-
- if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
- {
- clib_warning ("evt q rings full");
- if (lock)
- svm_msg_q_unlock (mq);
- return -1;
- }
-
- msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
- ASSERT (!svm_msg_q_msg_is_invalid (&msg));
-
- evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
- evt->event_type = FIFO_EVENT_APP_TX;
- evt->fifo = s->tx_fifo;
-
- return app_enqueue_evt (mq, &msg, lock);
-}
-
-/* *INDENT-OFF* */
-typedef int (app_send_evt_handler_fn) (app_worker_t *app,
- session_t *s,
- u8 lock);
-static app_send_evt_handler_fn * const app_send_evt_handler_fns[3] = {
- app_send_io_evt_rx,
- 0,
- app_send_io_evt_tx,
-};
-/* *INDENT-ON* */
-
-/**
- * Send event to application
- *
- * Logic from queue perspective is non-blocking. If there's
- * not enough space to enqueue a message, we return.
- */
-int
-app_worker_send_event (app_worker_t * app, session_t * s, u8 evt_type)
-{
- ASSERT (app && evt_type <= FIFO_EVENT_APP_TX);
- return app_send_evt_handler_fns[evt_type] (app, s, 0 /* lock */ );
-}
-
-/**
- * Send event to application
- *
- * Logic from queue perspective is blocking. However, if queue is full,
- * we return.
- */
-int
-app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
- u8 evt_type)
-{
- return app_send_evt_handler_fns[evt_type] (app, s, 1 /* lock */ );
-}
-
-local_session_t *
-application_local_session_alloc (app_worker_t * app_wrk)
-{
- local_session_t *s;
- pool_get (app_wrk->local_sessions, s);
- clib_memset (s, 0, sizeof (*s));
- s->app_wrk_index = app_wrk->wrk_index;
- s->session_index = s - app_wrk->local_sessions;
- s->session_type = session_type_from_proto_and_ip (TRANSPORT_PROTO_NONE, 0);
- return s;
-}
-
-void
-application_local_session_free (app_worker_t * app, local_session_t * s)
-{
- pool_put (app->local_sessions, s);
- if (CLIB_DEBUG)
- clib_memset (s, 0xfc, sizeof (*s));
-}
-
-local_session_t *
-application_get_local_session (app_worker_t * app_wrk, u32 session_index)
-{
- if (pool_is_free_index (app_wrk->local_sessions, session_index))
- return 0;
- return pool_elt_at_index (app_wrk->local_sessions, session_index);
-}
-
-local_session_t *
-application_get_local_session_from_handle (session_handle_t handle)
-{
- app_worker_t *server_wrk;
- u32 session_index, server_wrk_index;
- local_session_parse_handle (handle, &server_wrk_index, &session_index);
- server_wrk = app_worker_get_if_valid (server_wrk_index);
- if (!server_wrk)
- return 0;
- return application_get_local_session (server_wrk, session_index);
-}
-
-local_session_t *
-application_local_listen_session_alloc (application_t * app)
-{
- local_session_t *ll;
- pool_get (app->local_listen_sessions, ll);
- clib_memset (ll, 0, sizeof (*ll));
- return ll;
-}
-
-u32
-application_local_listener_index (application_t * app, local_session_t * ll)
-{
- return (ll - app->local_listen_sessions);
-}
-
-void
-application_local_listen_session_free (application_t * app,
- local_session_t * ll)
-{
- pool_put (app->local_listen_sessions, ll);
- if (CLIB_DEBUG)
- clib_memset (ll, 0xfb, sizeof (*ll));
-}
+ pool_put (app->local_listen_sessions, ll);
+ if (CLIB_DEBUG)
+ clib_memset (ll, 0xfb, sizeof (*ll));
+}
int
application_start_local_listen (application_t * app,
table_index = application_local_session_table (server);
/* We have both local and global table binds. Figure from global what
- * the sep we should be cleaning up is.
+ * sep we should be cleaning up.
*/
if (!session_handle_is_local (lh))
{
/* *INDENT-OFF* */
pool_foreach (ls, server_wrk->local_sessions, ({
if (ls->listener_index == ll->session_index)
- application_local_session_disconnect (server_wrk->app_index, ls);
+ app_worker_local_session_disconnect (server_wrk->app_index, ls);
}));
/* *INDENT-ON* */
return 0;
}
-static void
-application_local_session_fix_eventds (svm_msg_q_t * sq, svm_msg_q_t * cq)
-{
- int fd;
-
- /*
- * segment manager initializes only the producer eventds, since vpp is
- * typically the producer. But for local sessions, we also pass to the
- * apps the mqs they listen on for events from peer apps, so they are also
- * consumer fds.
- */
- fd = svm_msg_q_get_producer_eventfd (sq);
- svm_msg_q_set_consumer_eventfd (sq, fd);
- fd = svm_msg_q_get_producer_eventfd (cq);
- svm_msg_q_set_consumer_eventfd (cq, fd);
-}
-
-int
-application_local_session_connect (app_worker_t * client_wrk,
- app_worker_t * server_wrk,
- local_session_t * ll, u32 opaque)
-{
- u32 seg_size, evt_q_sz, evt_q_elts, margin = 16 << 10;
- u32 round_rx_fifo_sz, round_tx_fifo_sz, sm_index;
- segment_manager_properties_t *props, *cprops;
- int rv, has_transport, seg_index;
- svm_fifo_segment_private_t *seg;
- application_t *server, *client;
- segment_manager_t *sm;
- local_session_t *ls;
- svm_msg_q_t *sq, *cq;
- u64 segment_handle;
-
- ls = application_local_session_alloc (server_wrk);
- server = application_get (server_wrk->app_index);
- client = application_get (client_wrk->app_index);
-
- props = application_segment_manager_properties (server);
- cprops = application_segment_manager_properties (client);
- evt_q_elts = props->evt_q_size + cprops->evt_q_size;
- evt_q_sz = segment_manager_evt_q_expected_size (evt_q_elts);
- round_rx_fifo_sz = 1 << max_log2 (props->rx_fifo_size);
- round_tx_fifo_sz = 1 << max_log2 (props->tx_fifo_size);
- seg_size = round_rx_fifo_sz + round_tx_fifo_sz + evt_q_sz + margin;
-
- has_transport = session_has_transport ((session_t *) ll);
- if (!has_transport)
- {
- /* Local sessions don't have backing transport */
- ls->port = ll->port;
- sm = application_get_local_segment_manager (server_wrk);
- }
- else
- {
- session_t *sl = (session_t *) ll;
- transport_connection_t *tc;
- tc = listen_session_get_transport (sl);
- ls->port = tc->lcl_port;
- sm = app_worker_get_listen_segment_manager (server_wrk, sl);
- }
-
- seg_index = segment_manager_add_segment (sm, seg_size);
- if (seg_index < 0)
- {
- clib_warning ("failed to add new cut-through segment");
- return seg_index;
- }
- seg = segment_manager_get_segment_w_lock (sm, seg_index);
- sq = segment_manager_alloc_queue (seg, props);
- cq = segment_manager_alloc_queue (seg, cprops);
-
- if (props->use_mq_eventfd)
- application_local_session_fix_eventds (sq, cq);
-
- ls->server_evt_q = pointer_to_uword (sq);
- ls->client_evt_q = pointer_to_uword (cq);
- rv = segment_manager_try_alloc_fifos (seg, props->rx_fifo_size,
- props->tx_fifo_size,
- &ls->rx_fifo, &ls->tx_fifo);
- if (rv)
- {
- clib_warning ("failed to add fifos in cut-through segment");
- segment_manager_segment_reader_unlock (sm);
- goto failed;
- }
- sm_index = segment_manager_index (sm);
- ls->rx_fifo->ct_session_index = ls->session_index;
- ls->tx_fifo->ct_session_index = ls->session_index;
- ls->rx_fifo->segment_manager = sm_index;
- ls->tx_fifo->segment_manager = sm_index;
- ls->rx_fifo->segment_index = seg_index;
- ls->tx_fifo->segment_index = seg_index;
- ls->svm_segment_index = seg_index;
- ls->listener_index = ll->session_index;
- ls->client_wrk_index = client_wrk->wrk_index;
- ls->client_opaque = opaque;
- ls->listener_session_type = ll->session_type;
- ls->session_state = SESSION_STATE_READY;
-
- segment_handle = segment_manager_segment_handle (sm, seg);
- if ((rv = server->cb_fns.add_segment_callback (server_wrk->api_client_index,
- segment_handle)))
- {
- clib_warning ("failed to notify server of new segment");
- segment_manager_segment_reader_unlock (sm);
- goto failed;
- }
- segment_manager_segment_reader_unlock (sm);
- if ((rv = server->cb_fns.session_accept_callback ((session_t *) ls)))
- {
- clib_warning ("failed to send accept cut-through notify to server");
- goto failed;
- }
- if (server->flags & APP_OPTIONS_FLAGS_IS_BUILTIN)
- application_local_session_connect_notify (ls);
-
- return 0;
-
-failed:
- if (!has_transport)
- segment_manager_del_segment (sm, seg);
- return rv;
-}
-
-static u64
-application_client_local_connect_key (local_session_t * ls)
-{
- return (((u64) ls->app_wrk_index) << 32 | (u64) ls->session_index);
-}
-
-static void
-application_client_local_connect_key_parse (u64 key, u32 * app_wrk_index,
- u32 * session_index)
-{
- *app_wrk_index = key >> 32;
- *session_index = key & 0xFFFFFFFF;
-}
-
-int
-application_local_session_connect_notify (local_session_t * ls)
-{
- svm_fifo_segment_private_t *seg;
- app_worker_t *client_wrk, *server_wrk;
- segment_manager_t *sm;
- application_t *client;
- int rv, is_fail = 0;
- u64 segment_handle;
- u64 client_key;
-
- client_wrk = app_worker_get (ls->client_wrk_index);
- server_wrk = app_worker_get (ls->app_wrk_index);
- client = application_get (client_wrk->app_index);
-
- sm = application_get_local_segment_manager_w_session (server_wrk, ls);
- seg = segment_manager_get_segment_w_lock (sm, ls->svm_segment_index);
- segment_handle = segment_manager_segment_handle (sm, seg);
- if ((rv = client->cb_fns.add_segment_callback (client_wrk->api_client_index,
- segment_handle)))
- {
- clib_warning ("failed to notify client %u of new segment",
- ls->client_wrk_index);
- segment_manager_segment_reader_unlock (sm);
- application_local_session_disconnect (ls->client_wrk_index, ls);
- is_fail = 1;
- }
- else
- {
- segment_manager_segment_reader_unlock (sm);
- }
-
- client->cb_fns.session_connected_callback (client_wrk->wrk_index,
- ls->client_opaque,
- (session_t *) ls, is_fail);
-
- client_key = application_client_local_connect_key (ls);
- hash_set (client_wrk->local_connects, client_key, client_key);
- return 0;
-}
-
-int
-application_local_session_cleanup (app_worker_t * client_wrk,
- app_worker_t * server_wrk,
- local_session_t * ls)
-{
- svm_fifo_segment_private_t *seg;
- session_t *listener;
- segment_manager_t *sm;
- u64 client_key;
- u8 has_transport;
-
- /* Retrieve listener transport type as it is the one that decides where
- * the fifos are allocated */
- has_transport = application_local_session_listener_has_transport (ls);
- if (!has_transport)
- sm = application_get_local_segment_manager_w_session (server_wrk, ls);
- else
- {
- listener = listen_session_get (ls->listener_index);
- sm = app_worker_get_listen_segment_manager (server_wrk, listener);
- }
-
- seg = segment_manager_get_segment (sm, ls->svm_segment_index);
- if (client_wrk)
- {
- client_key = application_client_local_connect_key (ls);
- hash_unset (client_wrk->local_connects, client_key);
- }
-
- if (!has_transport)
- {
- application_t *server = application_get (server_wrk->app_index);
- u64 segment_handle = segment_manager_segment_handle (sm, seg);
- server->cb_fns.del_segment_callback (server_wrk->api_client_index,
- segment_handle);
- if (client_wrk)
- {
- application_t *client = application_get (client_wrk->app_index);
- client->cb_fns.del_segment_callback (client_wrk->api_client_index,
- segment_handle);
- }
- segment_manager_del_segment (sm, seg);
- }
-
- application_local_session_free (server_wrk, ls);
-
- return 0;
-}
-
-int
-application_local_session_disconnect (u32 app_index, local_session_t * ls)
-{
- app_worker_t *client_wrk, *server_wrk;
- u8 is_server = 0, is_client = 0;
- application_t *app;
-
- app = application_get_if_valid (app_index);
- if (!app)
- return 0;
-
- client_wrk = app_worker_get_if_valid (ls->client_wrk_index);
- server_wrk = app_worker_get (ls->app_wrk_index);
-
- if (server_wrk->app_index == app_index)
- is_server = 1;
- else if (client_wrk && client_wrk->app_index == app_index)
- is_client = 1;
-
- if (!is_server && !is_client)
- {
- clib_warning ("app %u is neither client nor server for session 0x%lx",
- app_index, application_local_session_handle (ls));
- return VNET_API_ERROR_INVALID_VALUE;
- }
-
- if (ls->session_state == SESSION_STATE_CLOSED)
- return application_local_session_cleanup (client_wrk, server_wrk, ls);
-
- if (app_index == ls->client_wrk_index)
- {
- mq_send_local_session_disconnected_cb (ls->app_wrk_index, ls);
- }
- else
- {
- if (!client_wrk)
- {
- return application_local_session_cleanup (client_wrk, server_wrk,
- ls);
- }
- else if (ls->session_state < SESSION_STATE_READY)
- {
- application_t *client = application_get (client_wrk->app_index);
- client->cb_fns.session_connected_callback (client_wrk->wrk_index,
- ls->client_opaque,
- (session_t *) ls,
- 1 /* is_fail */ );
- ls->session_state = SESSION_STATE_CLOSED;
- return application_local_session_cleanup (client_wrk, server_wrk,
- ls);
- }
- else
- {
- mq_send_local_session_disconnected_cb (client_wrk->wrk_index, ls);
- }
- }
-
- ls->session_state = SESSION_STATE_CLOSED;
-
- return 0;
-}
-
-int
-application_local_session_disconnect_w_index (u32 app_wrk_index, u32 ls_index)
-{
- app_worker_t *app_wrk;
- local_session_t *ls;
- app_wrk = app_worker_get (app_wrk_index);
- ls = application_get_local_session (app_wrk, ls_index);
- return application_local_session_disconnect (app_wrk_index, ls);
-}
-
-void
-app_worker_local_sessions_free (app_worker_t * app_wrk)
-{
- u32 index, server_wrk_index, session_index;
- u64 handle, *handles = 0;
- app_worker_t *server_wrk;
- segment_manager_t *sm;
- local_session_t *ls;
- int i;
-
- /*
- * Local sessions
- */
- if (app_wrk->local_sessions)
- {
- /* *INDENT-OFF* */
- pool_foreach (ls, app_wrk->local_sessions, ({
- application_local_session_disconnect (app_wrk->wrk_index, ls);
- }));
- /* *INDENT-ON* */
- }
-
- /*
- * Local connects
- */
- vec_reset_length (handles);
- /* *INDENT-OFF* */
- hash_foreach (handle, index, app_wrk->local_connects, ({
- vec_add1 (handles, handle);
- }));
- /* *INDENT-ON* */
-
- for (i = 0; i < vec_len (handles); i++)
- {
- application_client_local_connect_key_parse (handles[i],
- &server_wrk_index,
- &session_index);
- server_wrk = app_worker_get_if_valid (server_wrk_index);
- if (server_wrk)
- {
- ls = application_get_local_session (server_wrk, session_index);
- application_local_session_disconnect (app_wrk->wrk_index, ls);
- }
- }
-
- sm = segment_manager_get (app_wrk->local_segment_manager);
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
- segment_manager_del (sm);
-}
-
clib_error_t *
vnet_app_add_tls_cert (vnet_app_add_tls_cert_args_t * a)
{
return 0;
}
-u8 *
-format_app_worker_listener (u8 * s, va_list * args)
-{
- app_worker_t *app_wrk = va_arg (*args, app_worker_t *);
- u64 handle = va_arg (*args, u64);
- u32 sm_index = va_arg (*args, u32);
- int verbose = va_arg (*args, int);
- session_t *listener;
- const u8 *app_name;
- u8 *str;
-
- if (!app_wrk)
- {
- if (verbose)
- s = format (s, "%-40s%-25s%=10s%-15s%-15s%-10s", "Connection", "App",
- "Wrk", "API Client", "ListenerID", "SegManager");
- else
- s = format (s, "%-40s%-25s%=10s", "Connection", "App", "Wrk");
-
- return s;
- }
-
- app_name = application_name_from_index (app_wrk->app_index);
- listener = listen_session_get_from_handle (handle);
- str = format (0, "%U", format_stream_session, listener, verbose);
-
- if (verbose)
- {
- char buf[32];
- sprintf (buf, "%u(%u)", app_wrk->wrk_map_index, app_wrk->wrk_index);
- s = format (s, "%-40s%-25s%=10s%-15u%-15u%-10u", str, app_name,
- buf, app_wrk->api_client_index, handle, sm_index);
- }
- else
- s = format (s, "%-40s%-25s%=10u", str, app_name, app_wrk->wrk_map_index);
-
- return s;
-}
-
static void
application_format_listeners (application_t * app, int verbose)
{
/* *INDENT-ON* */
}
-static void
-app_worker_format_connects (app_worker_t * app_wrk, int verbose)
-{
- svm_fifo_segment_private_t *fifo_segment;
- vlib_main_t *vm = vlib_get_main ();
- segment_manager_t *sm;
- const u8 *app_name;
- u8 *s = 0;
-
- /* Header */
- if (!app_wrk)
- {
- if (verbose)
- vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App",
- "API Client", "SegManager");
- else
- vlib_cli_output (vm, "%-40s%-20s", "Connection", "App");
- return;
- }
-
- if (app_wrk->connects_seg_manager == (u32) ~ 0)
- return;
-
- app_name = application_name_from_index (app_wrk->app_index);
-
- /* Across all fifo segments */
- sm = segment_manager_get (app_wrk->connects_seg_manager);
-
- /* *INDENT-OFF* */
- segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({
- svm_fifo_t *fifo;
- u8 *str;
-
- fifo = svm_fifo_segment_get_fifo_list (fifo_segment);
- while (fifo)
- {
- u32 session_index, thread_index;
- session_t *session;
-
- session_index = fifo->master_session_index;
- thread_index = fifo->master_thread_index;
-
- session = session_get (session_index, thread_index);
- str = format (0, "%U", format_stream_session, session, verbose);
-
- if (verbose)
- s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
- app_wrk->api_client_index, app_wrk->connects_seg_manager);
- else
- s = format (s, "%-40s%-20s", str, app_name);
-
- vlib_cli_output (vm, "%v", s);
- vec_reset_length (s);
- vec_free (str);
-
- fifo = fifo->next;
- }
- vec_free (s);
- }));
- /* *INDENT-ON* */
-
-}
-
static void
application_format_connects (application_t * app, int verbose)
{
/* *INDENT-ON* */
}
-static void
-app_worker_format_local_sessions (app_worker_t * app_wrk, int verbose)
-{
- vlib_main_t *vm = vlib_get_main ();
- local_session_t *ls;
- transport_proto_t tp;
- u8 *conn = 0;
-
- /* Header */
- if (app_wrk == 0)
- {
- vlib_cli_output (vm, "%-40s%-15s%-20s", "Connection", "ServerApp",
- "ClientApp");
- return;
- }
-
- if (!pool_elts (app_wrk->local_sessions)
- && !pool_elts (app_wrk->local_connects))
- return;
-
- /* *INDENT-OFF* */
- pool_foreach (ls, app_wrk->local_sessions, ({
- tp = session_type_transport_proto(ls->listener_session_type);
- conn = format (0, "[L][%U] *:%u", format_transport_proto_short, tp,
- ls->port);
- vlib_cli_output (vm, "%-40v%-15u%-20u", conn, ls->app_wrk_index,
- ls->client_wrk_index);
- vec_reset_length (conn);
- }));
- /* *INDENT-ON* */
-
- vec_free (conn);
-}
-
static void
application_format_local_sessions (application_t * app, int verbose)
{
/* *INDENT-ON* */
}
-static void
-app_worker_format_local_connects (app_worker_t * app, int verbose)
-{
- vlib_main_t *vm = vlib_get_main ();
- u32 app_wrk_index, session_index;
- app_worker_t *server_wrk;
- local_session_t *ls;
- u64 client_key;
- u64 value;
-
- /* Header */
- if (app == 0)
- {
- if (verbose)
- vlib_cli_output (vm, "%-40s%-15s%-20s%-10s", "Connection", "App",
- "Peer App", "SegManager");
- else
- vlib_cli_output (vm, "%-40s%-15s%-20s", "Connection", "App",
- "Peer App");
- return;
- }
-
- if (!app->local_connects)
- return;
-
- /* *INDENT-OFF* */
- hash_foreach (client_key, value, app->local_connects, ({
- application_client_local_connect_key_parse (client_key, &app_wrk_index,
- &session_index);
- server_wrk = app_worker_get (app_wrk_index);
- ls = application_get_local_session (server_wrk, session_index);
- vlib_cli_output (vm, "%-40s%-15s%-20s", "TODO", ls->app_wrk_index,
- ls->client_wrk_index);
- }));
- /* *INDENT-ON* */
-}
-
static void
application_format_local_connects (application_t * app, int verbose)
{
/* *INDENT-ON* */
}
-u8 *
-format_application_worker (u8 * s, va_list * args)
-{
- app_worker_t *app_wrk = va_arg (*args, app_worker_t *);
- u32 indent = 1;
-
- s = format (s, "%U wrk-index %u app-index %u map-index %u "
- "api-client-index %d\n", format_white_space, indent,
- app_wrk->wrk_index, app_wrk->app_index, app_wrk->wrk_map_index,
- app_wrk->api_client_index);
- return s;
-}
-
u8 *
format_application (u8 * s, va_list * args)
{
/* *INDENT-OFF* */
pool_foreach (wrk_map, app->worker_maps, ({
app_wrk = app_worker_get (wrk_map->wrk_index);
- s = format (s, "%U", format_application_worker, app_wrk);
+ s = format (s, "%U", format_app_worker, app_wrk);
}));
/* *INDENT-ON* */
*/
application_t *app_pool;
- /**
- * Pool of workers associated to apps
- */
- app_worker_t *workers;
-
/**
* Hash table of apps by api client index
*/
#define APP_NS_INVALID_INDEX ((u32)~0)
#define APP_INVALID_SEGMENT_MANAGER_INDEX ((u32) ~0)
-app_worker_t *app_worker_alloc (application_t * app);
-int app_worker_alloc_and_init (application_t * app, app_worker_t ** wrk);
-app_worker_t *app_worker_get (u32 wrk_index);
-app_worker_t *app_worker_get_if_valid (u32 wrk_index);
-application_t *app_worker_get_app (u32 wrk_index);
-int app_worker_own_session (app_worker_t * app_wrk, session_t * s);
-void app_worker_free (app_worker_t * app_wrk);
-int app_worker_open_session (app_worker_t * app, session_endpoint_t * tep,
- u32 api_context);
-segment_manager_t *app_worker_get_listen_segment_manager (app_worker_t *,
- session_t *);
-segment_manager_t *app_worker_get_connect_segment_manager (app_worker_t *);
-segment_manager_t
- * app_worker_get_or_alloc_connect_segment_manager (app_worker_t *);
-int app_worker_alloc_connects_segment_manager (app_worker_t * app);
-int app_worker_add_segment_notify (u32 app_or_wrk, u64 segment_handle);
-u32 app_worker_n_listeners (app_worker_t * app);
-session_t *app_worker_first_listener (app_worker_t * app,
- u8 fib_proto, u8 transport_proto);
-u8 app_worker_application_is_builtin (app_worker_t * app_wrk);
-int app_worker_send_event (app_worker_t * app, session_t * s, u8 evt);
-int app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
- u8 evt_type);
-clib_error_t *vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a);
-
-int application_start_listen (application_t * app,
- session_endpoint_cfg_t * tep,
- session_handle_t * handle);
-int application_stop_listen (u32 app_index, u32 app_or_wrk,
- session_handle_t handle);
-
application_t *application_alloc (void);
int application_alloc_and_init (app_init_args_t * args);
void application_free (application_t * app);
app_worker_t *application_get_default_worker (application_t * app);
app_worker_t *application_listener_select_worker (session_t * ls,
u8 is_local);
-
+int application_start_listen (application_t * app,
+ session_endpoint_cfg_t * tep,
+ session_handle_t * handle);
+int application_stop_listen (u32 app_index, u32 app_or_wrk,
+ session_handle_t handle);
+int application_change_listener_owner (session_t * s, app_worker_t * app_wrk);
int application_is_proxy (application_t * app);
int application_is_builtin (application_t * app);
int application_is_builtin_proxy (application_t * app);
segment_manager_properties_t
* application_segment_manager_properties (application_t * app);
+/*
+ * App worker
+ */
+
+app_worker_t *app_worker_alloc (application_t * app);
+int application_alloc_worker_and_init (application_t * app,
+ app_worker_t ** wrk);
+app_worker_t *app_worker_get (u32 wrk_index);
+app_worker_t *app_worker_get_if_valid (u32 wrk_index);
+application_t *app_worker_get_app (u32 wrk_index);
+int app_worker_own_session (app_worker_t * app_wrk, session_t * s);
+void app_worker_free (app_worker_t * app_wrk);
+int app_worker_open_session (app_worker_t * app, session_endpoint_t * tep,
+ u32 api_context);
+int app_worker_start_listen (app_worker_t * app_wrk, session_t * ls);
+int app_worker_stop_listen (app_worker_t * app_wrk, session_handle_t handle);
+segment_manager_t *app_worker_get_listen_segment_manager (app_worker_t *,
+ session_t *);
+segment_manager_t *app_worker_get_connect_segment_manager (app_worker_t *);
+segment_manager_t
+ * app_worker_get_or_alloc_connect_segment_manager (app_worker_t *);
+int app_worker_alloc_connects_segment_manager (app_worker_t * app);
+int app_worker_add_segment_notify (u32 app_or_wrk, u64 segment_handle);
+u32 app_worker_n_listeners (app_worker_t * app);
+session_t *app_worker_first_listener (app_worker_t * app,
+ u8 fib_proto, u8 transport_proto);
+u8 app_worker_application_is_builtin (app_worker_t * app_wrk);
+int app_worker_send_event (app_worker_t * app, session_t * s, u8 evt);
+int app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
+ u8 evt_type);
+session_t *app_worker_proxy_listener (app_worker_t * app, u8 fib_proto,
+ u8 transport_proto);
+u8 *format_app_worker (u8 * s, va_list * args);
+u8 *format_app_worker_listener (u8 * s, va_list * args);
+void app_worker_format_connects (app_worker_t * app_wrk, int verbose);
+clib_error_t *vnet_app_worker_add_del (vnet_app_worker_add_del_args_t * a);
+
/*
* Local session
*/
-local_session_t *application_local_session_alloc (app_worker_t * app);
-void application_local_session_free (app_worker_t * app,
- local_session_t * ls);
-local_session_t *application_get_local_session (app_worker_t * app,
- u32 session_index);
-local_session_t *application_get_local_session_from_handle (session_handle_t
- handle);
+local_session_t *app_worker_local_session_alloc (app_worker_t * app);
+void app_worker_local_session_free (app_worker_t * app, local_session_t * ls);
+local_session_t *app_worker_get_local_session (app_worker_t * app,
+ u32 session_index);
+local_session_t *app_worker_get_local_session_from_handle (session_handle_t
+ handle);
local_session_t
* application_get_local_listen_session_from_handle (session_handle_t lh);
int application_start_local_listen (application_t * server,
session_handle_t * handle);
int application_stop_local_listen (u32 app_index, u32 app_or_wrk,
session_handle_t lh);
-int application_local_session_connect (app_worker_t * client,
- app_worker_t * server,
- local_session_t * ls, u32 opaque);
-int application_local_session_connect_notify (local_session_t * ls);
-int application_local_session_disconnect (u32 app_or_wrk,
- local_session_t * ls);
-int application_local_session_disconnect_w_index (u32 app_or_wrk,
- u32 ls_index);
-void app_worker_local_sessions_free (app_worker_t * app);
+int app_worker_local_session_connect (app_worker_t * client,
+ app_worker_t * server,
+ local_session_t * ls, u32 opaque);
+int app_worker_local_session_connect_notify (local_session_t * ls);
+int app_worker_local_session_disconnect (u32 app_or_wrk,
+ local_session_t * ls);
+int app_worker_local_session_disconnect_w_index (u32 app_or_wrk,
+ u32 ls_index);
+void app_worker_format_local_sessions (app_worker_t * app_wrk, int verbose);
+void app_worker_format_local_connects (app_worker_t * app, int verbose);
always_inline u32
local_session_id (local_session_t * ls)
listener = (session_t *) ll;
server_wrk = application_listener_select_worker (listener,
1 /* is_local */ );
- return application_local_session_connect (client_wrk,
- server_wrk, ll,
- a->api_context);
+ return app_worker_local_session_connect (client_wrk,
+ server_wrk, ll,
+ a->api_context);
}
}
server_wrk = application_listener_select_worker (listener,
0 /* is_local */ );
ll = (local_session_t *) listener;
- return application_local_session_connect (client_wrk, server_wrk, ll,
- a->api_context);
+ return app_worker_local_session_connect (client_wrk, server_wrk, ll,
+ a->api_context);
}
/*
return clib_error_return_code (0, rv, 0, "app init: %d", rv);
app = application_get (a->app_index);
- if ((rv = app_worker_alloc_and_init (app, &app_wrk)))
+ if ((rv = application_alloc_worker_and_init (app, &app_wrk)))
return clib_error_return_code (0, rv, 0, "app default wrk init: %d", rv);
a->app_evt_q = app_wrk->event_queue;
/* Disconnect reply came to worker 1 not main thread */
app_interface_check_thread_and_barrier (vnet_disconnect_session, a);
- if (!(ls = application_get_local_session_from_handle (a->handle)))
+ if (!(ls = app_worker_get_local_session_from_handle (a->handle)))
return 0;
- return application_local_session_disconnect (a->app_index, ls);
+ return app_worker_local_session_disconnect (a->app_index, ls);
}
else
{
--- /dev/null
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/session/application.h>
+#include <vnet/session/application_interface.h>
+
+/**
+ * Pool of workers associated to apps
+ */
+static app_worker_t *app_workers;
+
+static inline u64
+application_client_local_connect_key (local_session_t * ls)
+{
+ return (((u64) ls->app_wrk_index) << 32 | (u64) ls->session_index);
+}
+
+static inline void
+application_client_local_connect_key_parse (u64 key, u32 * app_wrk_index,
+ u32 * session_index)
+{
+ *app_wrk_index = key >> 32;
+ *session_index = key & 0xFFFFFFFF;
+}
+
+local_session_t *
+app_worker_local_session_alloc (app_worker_t * app_wrk)
+{
+ local_session_t *s;
+ pool_get (app_wrk->local_sessions, s);
+ clib_memset (s, 0, sizeof (*s));
+ s->app_wrk_index = app_wrk->wrk_index;
+ s->session_index = s - app_wrk->local_sessions;
+ s->session_type = session_type_from_proto_and_ip (TRANSPORT_PROTO_NONE, 0);
+ return s;
+}
+
+void
+app_worker_local_session_free (app_worker_t * app_wrk, local_session_t * s)
+{
+ pool_put (app_wrk->local_sessions, s);
+ if (CLIB_DEBUG)
+ clib_memset (s, 0xfc, sizeof (*s));
+}
+
+local_session_t *
+app_worker_get_local_session (app_worker_t * app_wrk, u32 session_index)
+{
+ if (pool_is_free_index (app_wrk->local_sessions, session_index))
+ return 0;
+ return pool_elt_at_index (app_wrk->local_sessions, session_index);
+}
+
+local_session_t *
+app_worker_get_local_session_from_handle (session_handle_t handle)
+{
+ app_worker_t *server_wrk;
+ u32 session_index, server_wrk_index;
+ local_session_parse_handle (handle, &server_wrk_index, &session_index);
+ server_wrk = app_worker_get_if_valid (server_wrk_index);
+ if (!server_wrk)
+ return 0;
+ return app_worker_get_local_session (server_wrk, session_index);
+}
+
+void
+app_worker_local_sessions_free (app_worker_t * app_wrk)
+{
+ u32 index, server_wrk_index, session_index;
+ u64 handle, *handles = 0;
+ app_worker_t *server_wrk;
+ segment_manager_t *sm;
+ local_session_t *ls;
+ int i;
+
+ /*
+ * Local sessions
+ */
+ if (app_wrk->local_sessions)
+ {
+ /* *INDENT-OFF* */
+ pool_foreach (ls, app_wrk->local_sessions, ({
+ app_worker_local_session_disconnect (app_wrk->wrk_index, ls);
+ }));
+ /* *INDENT-ON* */
+ }
+
+ /*
+ * Local connects
+ */
+ vec_reset_length (handles);
+ /* *INDENT-OFF* */
+ hash_foreach (handle, index, app_wrk->local_connects, ({
+ vec_add1 (handles, handle);
+ }));
+ /* *INDENT-ON* */
+
+ for (i = 0; i < vec_len (handles); i++)
+ {
+ application_client_local_connect_key_parse (handles[i],
+ &server_wrk_index,
+ &session_index);
+ server_wrk = app_worker_get_if_valid (server_wrk_index);
+ if (server_wrk)
+ {
+ ls = app_worker_get_local_session (server_wrk, session_index);
+ app_worker_local_session_disconnect (app_wrk->wrk_index, ls);
+ }
+ }
+
+ sm = segment_manager_get (app_wrk->local_segment_manager);
+ sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
+ segment_manager_del (sm);
+}
+
+app_worker_t *
+app_worker_alloc (application_t * app)
+{
+ app_worker_t *app_wrk;
+ pool_get (app_workers, app_wrk);
+ clib_memset (app_wrk, 0, sizeof (*app_wrk));
+ app_wrk->wrk_index = app_wrk - app_workers;
+ app_wrk->app_index = app->app_index;
+ app_wrk->wrk_map_index = ~0;
+ app_wrk->connects_seg_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
+ app_wrk->first_segment_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
+ app_wrk->local_segment_manager = APP_INVALID_SEGMENT_MANAGER_INDEX;
+ APP_DBG ("New app %v worker %u", app_get_name (app), app_wrk->wrk_index);
+ return app_wrk;
+}
+
+app_worker_t *
+app_worker_get (u32 wrk_index)
+{
+ return pool_elt_at_index (app_workers, wrk_index);
+}
+
+app_worker_t *
+app_worker_get_if_valid (u32 wrk_index)
+{
+ if (pool_is_free_index (app_workers, wrk_index))
+ return 0;
+ return pool_elt_at_index (app_workers, wrk_index);
+}
+
+void
+app_worker_free (app_worker_t * app_wrk)
+{
+ application_t *app = application_get (app_wrk->app_index);
+ vnet_unbind_args_t _a, *a = &_a;
+ u64 handle, *handles = 0;
+ segment_manager_t *sm;
+ u32 sm_index;
+ int i;
+
+ /*
+ * Listener cleanup
+ */
+
+ /* *INDENT-OFF* */
+ hash_foreach (handle, sm_index, app_wrk->listeners_table,
+ ({
+ vec_add1 (handles, handle);
+ sm = segment_manager_get (sm_index);
+ sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
+ }));
+ /* *INDENT-ON* */
+
+ for (i = 0; i < vec_len (handles); i++)
+ {
+ a->app_index = app->app_index;
+ a->wrk_map_index = app_wrk->wrk_map_index;
+ a->handle = handles[i];
+ /* seg manager is removed when unbind completes */
+ vnet_unbind (a);
+ }
+
+ /*
+ * Connects segment manager cleanup
+ */
+
+ if (app_wrk->connects_seg_manager != APP_INVALID_SEGMENT_MANAGER_INDEX)
+ {
+ sm = segment_manager_get (app_wrk->connects_seg_manager);
+ sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
+ segment_manager_init_del (sm);
+ }
+
+ /* If first segment manager is used by a listener */
+ if (app_wrk->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX
+ && app_wrk->first_segment_manager != app_wrk->connects_seg_manager)
+ {
+ sm = segment_manager_get (app_wrk->first_segment_manager);
+ sm->first_is_protected = 0;
+ sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
+ /* .. and has no fifos, e.g. it might be used for redirected sessions,
+ * remove it */
+ if (!segment_manager_has_fifos (sm))
+ segment_manager_del (sm);
+ }
+
+ /*
+ * Local sessions
+ */
+ app_worker_local_sessions_free (app_wrk);
+
+ pool_put (app_workers, app_wrk);
+ if (CLIB_DEBUG)
+ clib_memset (app_wrk, 0xfe, sizeof (*app_wrk));
+}
+
+application_t *
+app_worker_get_app (u32 wrk_index)
+{
+ app_worker_t *app_wrk;
+ app_wrk = app_worker_get_if_valid (wrk_index);
+ if (!app_wrk)
+ return 0;
+ return application_get_if_valid (app_wrk->app_index);
+}
+
+static segment_manager_t *
+app_worker_alloc_segment_manager (app_worker_t * app_wrk)
+{
+ segment_manager_t *sm = 0;
+
+ /* If the first segment manager is not in use, don't allocate a new one */
+ if (app_wrk->first_segment_manager != APP_INVALID_SEGMENT_MANAGER_INDEX
+ && app_wrk->first_segment_manager_in_use == 0)
+ {
+ sm = segment_manager_get (app_wrk->first_segment_manager);
+ app_wrk->first_segment_manager_in_use = 1;
+ return sm;
+ }
+
+ sm = segment_manager_new ();
+ sm->app_wrk_index = app_wrk->wrk_index;
+
+ return sm;
+}
+
+int
+app_worker_start_listen (app_worker_t * app_wrk, session_t * ls)
+{
+ segment_manager_t *sm;
+
+ /* Allocate segment manager. All sessions derived out of a listen session
+ * have fifos allocated by the same segment manager. */
+ if (!(sm = app_worker_alloc_segment_manager (app_wrk)))
+ return -1;
+
+ /* Add to app's listener table. Useful to find all child listeners
+ * when app goes down, although, just for unbinding this is not needed */
+ hash_set (app_wrk->listeners_table, listen_session_get_handle (ls),
+ segment_manager_index (sm));
+
+ if (!ls->rx_fifo
+ && session_transport_service_type (ls) == TRANSPORT_SERVICE_CL)
+ {
+ if (session_alloc_fifos (sm, ls))
+ return -1;
+ }
+ return 0;
+}
+
+int
+app_worker_stop_listen (app_worker_t * app_wrk, session_handle_t handle)
+{
+ segment_manager_t *sm;
+ uword *sm_indexp;
+
+ sm_indexp = hash_get (app_wrk->listeners_table, handle);
+ if (PREDICT_FALSE (!sm_indexp))
+ {
+ clib_warning ("listener handle was removed %llu!", handle);
+ return -1;
+ }
+
+ sm = segment_manager_get (*sm_indexp);
+ if (app_wrk->first_segment_manager == *sm_indexp)
+ {
+ /* Delete sessions but don't remove segment manager */
+ app_wrk->first_segment_manager_in_use = 0;
+ segment_manager_del_sessions (sm);
+ }
+ else
+ {
+ segment_manager_init_del (sm);
+ }
+ hash_unset (app_wrk->listeners_table, handle);
+
+ return 0;
+}
+
+int
+app_worker_own_session (app_worker_t * app_wrk, session_t * s)
+{
+ segment_manager_t *sm;
+ svm_fifo_t *rxf, *txf;
+
+ if (s->session_state == SESSION_STATE_LISTENING)
+ return application_change_listener_owner (s, app_wrk);
+
+ s->app_wrk_index = app_wrk->wrk_index;
+
+ rxf = s->rx_fifo;
+ txf = s->tx_fifo;
+
+ if (!rxf || !txf)
+ return 0;
+
+ s->rx_fifo = 0;
+ s->tx_fifo = 0;
+
+ sm = app_worker_get_or_alloc_connect_segment_manager (app_wrk);
+ if (session_alloc_fifos (sm, s))
+ return -1;
+
+ if (!svm_fifo_is_empty (rxf))
+ {
+ clib_memcpy_fast (s->rx_fifo->data, rxf->data, rxf->nitems);
+ s->rx_fifo->head = rxf->head;
+ s->rx_fifo->tail = rxf->tail;
+ s->rx_fifo->cursize = rxf->cursize;
+ }
+
+ if (!svm_fifo_is_empty (txf))
+ {
+ clib_memcpy_fast (s->tx_fifo->data, txf->data, txf->nitems);
+ s->tx_fifo->head = txf->head;
+ s->tx_fifo->tail = txf->tail;
+ s->tx_fifo->cursize = txf->cursize;
+ }
+
+ segment_manager_dealloc_fifos (rxf->segment_index, rxf, txf);
+
+ return 0;
+}
+
+int
+app_worker_open_session (app_worker_t * app, session_endpoint_t * sep,
+ u32 api_context)
+{
+ int rv;
+
+ /* Make sure we have a segment manager for connects */
+ app_worker_alloc_connects_segment_manager (app);
+
+ if ((rv = session_open (app->wrk_index, sep, api_context)))
+ return rv;
+
+ return 0;
+}
+
+int
+app_worker_alloc_connects_segment_manager (app_worker_t * app_wrk)
+{
+ segment_manager_t *sm;
+
+ if (app_wrk->connects_seg_manager == APP_INVALID_SEGMENT_MANAGER_INDEX)
+ {
+ sm = app_worker_alloc_segment_manager (app_wrk);
+ if (sm == 0)
+ return -1;
+ app_wrk->connects_seg_manager = segment_manager_index (sm);
+ }
+ return 0;
+}
+
+segment_manager_t *
+app_worker_get_connect_segment_manager (app_worker_t * app)
+{
+ ASSERT (app->connects_seg_manager != (u32) ~ 0);
+ return segment_manager_get (app->connects_seg_manager);
+}
+
+segment_manager_t *
+app_worker_get_or_alloc_connect_segment_manager (app_worker_t * app_wrk)
+{
+ if (app_wrk->connects_seg_manager == (u32) ~ 0)
+ app_worker_alloc_connects_segment_manager (app_wrk);
+ return segment_manager_get (app_wrk->connects_seg_manager);
+}
+
+segment_manager_t *
+app_worker_get_listen_segment_manager (app_worker_t * app,
+ session_t * listener)
+{
+ uword *smp;
+ smp = hash_get (app->listeners_table, listen_session_get_handle (listener));
+ ASSERT (smp != 0);
+ return segment_manager_get (*smp);
+}
+
+session_t *
+app_worker_first_listener (app_worker_t * app, u8 fib_proto,
+ u8 transport_proto)
+{
+ session_t *listener;
+ u64 handle;
+ u32 sm_index;
+ u8 sst;
+
+ sst = session_type_from_proto_and_ip (transport_proto,
+ fib_proto == FIB_PROTOCOL_IP4);
+
+ /* *INDENT-OFF* */
+ hash_foreach (handle, sm_index, app->listeners_table, ({
+ listener = listen_session_get_from_handle (handle);
+ if (listener->session_type == sst
+ && listener->enqueue_epoch != SESSION_PROXY_LISTENER_INDEX)
+ return listener;
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
+session_t *
+app_worker_proxy_listener (app_worker_t * app, u8 fib_proto,
+ u8 transport_proto)
+{
+ session_t *listener;
+ u64 handle;
+ u32 sm_index;
+ u8 sst;
+
+ sst = session_type_from_proto_and_ip (transport_proto,
+ fib_proto == FIB_PROTOCOL_IP4);
+
+ /* *INDENT-OFF* */
+ hash_foreach (handle, sm_index, app->listeners_table, ({
+ listener = listen_session_get_from_handle (handle);
+ if (listener->session_type == sst
+ && listener->enqueue_epoch == SESSION_PROXY_LISTENER_INDEX)
+ return listener;
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
+/**
+ * Send an API message to the external app, to map new segment
+ */
+int
+app_worker_add_segment_notify (u32 app_wrk_index, u64 segment_handle)
+{
+ app_worker_t *app_wrk = app_worker_get (app_wrk_index);
+ application_t *app = application_get (app_wrk->app_index);
+ return app->cb_fns.add_segment_callback (app_wrk->api_client_index,
+ segment_handle);
+}
+
+u8
+app_worker_application_is_builtin (app_worker_t * app_wrk)
+{
+ return app_wrk->app_is_builtin;
+}
+
+static inline int
+app_enqueue_evt (svm_msg_q_t * mq, svm_msg_q_msg_t * msg, u8 lock)
+{
+ if (PREDICT_FALSE (svm_msg_q_is_full (mq)))
+ {
+ clib_warning ("evt q full");
+ svm_msg_q_free_msg (mq, msg);
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+
+ if (lock)
+ {
+ svm_msg_q_add_and_unlock (mq, msg);
+ return 0;
+ }
+
+ /* Even when not locking the ring, we must wait for queue mutex */
+ if (svm_msg_q_add (mq, msg, SVM_Q_WAIT))
+ {
+ clib_warning ("msg q add returned");
+ return -1;
+ }
+ return 0;
+}
+
+static inline int
+app_send_io_evt_rx (app_worker_t * app_wrk, session_t * s, u8 lock)
+{
+ session_event_t *evt;
+ svm_msg_q_msg_t msg;
+ svm_msg_q_t *mq;
+
+ if (PREDICT_FALSE (s->session_state != SESSION_STATE_READY
+ && s->session_state != SESSION_STATE_LISTENING))
+ {
+ /* Session is closed so app will never clean up. Flush rx fifo */
+ if (s->session_state == SESSION_STATE_CLOSED)
+ svm_fifo_dequeue_drop_all (s->rx_fifo);
+ return 0;
+ }
+
+ if (app_worker_application_is_builtin (app_wrk))
+ {
+ application_t *app = application_get (app_wrk->app_index);
+ return app->cb_fns.builtin_app_rx_callback (s);
+ }
+
+ if (svm_fifo_has_event (s->rx_fifo) || svm_fifo_is_empty (s->rx_fifo))
+ return 0;
+
+ mq = app_wrk->event_queue;
+ if (lock)
+ svm_msg_q_lock (mq);
+
+ if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ {
+ clib_warning ("evt q rings full");
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ ASSERT (!svm_msg_q_msg_is_invalid (&msg));
+
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->fifo = s->rx_fifo;
+ evt->event_type = FIFO_EVENT_APP_RX;
+
+ (void) svm_fifo_set_event (s->rx_fifo);
+
+ if (app_enqueue_evt (mq, &msg, lock))
+ return -1;
+ return 0;
+}
+
+static inline int
+app_send_io_evt_tx (app_worker_t * app_wrk, session_t * s, u8 lock)
+{
+ svm_msg_q_t *mq;
+ session_event_t *evt;
+ svm_msg_q_msg_t msg;
+
+ if (app_worker_application_is_builtin (app_wrk))
+ return 0;
+
+ mq = app_wrk->event_queue;
+ if (lock)
+ svm_msg_q_lock (mq);
+
+ if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ {
+ clib_warning ("evt q rings full");
+ if (lock)
+ svm_msg_q_unlock (mq);
+ return -1;
+ }
+
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ ASSERT (!svm_msg_q_msg_is_invalid (&msg));
+
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->event_type = FIFO_EVENT_APP_TX;
+ evt->fifo = s->tx_fifo;
+
+ return app_enqueue_evt (mq, &msg, lock);
+}
+
+/* *INDENT-OFF* */
+typedef int (app_send_evt_handler_fn) (app_worker_t *app,
+ session_t *s,
+ u8 lock);
+static app_send_evt_handler_fn * const app_send_evt_handler_fns[3] = {
+ app_send_io_evt_rx,
+ 0,
+ app_send_io_evt_tx,
+};
+/* *INDENT-ON* */
+
+/**
+ * Send event to application
+ *
+ * Logic from queue perspective is non-blocking. If there's
+ * not enough space to enqueue a message, we return.
+ */
+int
+app_worker_send_event (app_worker_t * app, session_t * s, u8 evt_type)
+{
+ ASSERT (app && evt_type <= FIFO_EVENT_APP_TX);
+ return app_send_evt_handler_fns[evt_type] (app, s, 0 /* lock */ );
+}
+
+/**
+ * Send event to application
+ *
+ * Logic from queue perspective is blocking. However, if queue is full,
+ * we return.
+ */
+int
+app_worker_lock_and_send_event (app_worker_t * app, session_t * s,
+ u8 evt_type)
+{
+ return app_send_evt_handler_fns[evt_type] (app, s, 1 /* lock */ );
+}
+
+segment_manager_t *
+app_worker_get_local_segment_manager (app_worker_t * app_worker)
+{
+ return segment_manager_get (app_worker->local_segment_manager);
+}
+
+segment_manager_t *
+app_worker_get_local_segment_manager_w_session (app_worker_t * app_wrk,
+ local_session_t * ls)
+{
+ session_t *listener;
+ if (application_local_session_listener_has_transport (ls))
+ {
+ listener = listen_session_get (ls->listener_index);
+ return app_worker_get_listen_segment_manager (app_wrk, listener);
+ }
+ return segment_manager_get (app_wrk->local_segment_manager);
+}
+
+int
+app_worker_local_session_cleanup (app_worker_t * client_wrk,
+ app_worker_t * server_wrk,
+ local_session_t * ls)
+{
+ svm_fifo_segment_private_t *seg;
+ session_t *listener;
+ segment_manager_t *sm;
+ u64 client_key;
+ u8 has_transport;
+
+ /* Retrieve listener transport type as it is the one that decides where
+ * the fifos are allocated */
+ has_transport = application_local_session_listener_has_transport (ls);
+ if (!has_transport)
+ sm = app_worker_get_local_segment_manager_w_session (server_wrk, ls);
+ else
+ {
+ listener = listen_session_get (ls->listener_index);
+ sm = app_worker_get_listen_segment_manager (server_wrk, listener);
+ }
+
+ seg = segment_manager_get_segment (sm, ls->svm_segment_index);
+ if (client_wrk)
+ {
+ client_key = application_client_local_connect_key (ls);
+ hash_unset (client_wrk->local_connects, client_key);
+ }
+
+ if (!has_transport)
+ {
+ application_t *server = application_get (server_wrk->app_index);
+ u64 segment_handle = segment_manager_segment_handle (sm, seg);
+ server->cb_fns.del_segment_callback (server_wrk->api_client_index,
+ segment_handle);
+ if (client_wrk)
+ {
+ application_t *client = application_get (client_wrk->app_index);
+ client->cb_fns.del_segment_callback (client_wrk->api_client_index,
+ segment_handle);
+ }
+ segment_manager_del_segment (sm, seg);
+ }
+
+ app_worker_local_session_free (server_wrk, ls);
+
+ return 0;
+}
+
+static void
+application_local_session_fix_eventds (svm_msg_q_t * sq, svm_msg_q_t * cq)
+{
+ int fd;
+
+ /*
+ * segment manager initializes only the producer eventds, since vpp is
+ * typically the producer. But for local sessions, we also pass to the
+ * apps the mqs they listen on for events from peer apps, so they are also
+ * consumer fds.
+ */
+ fd = svm_msg_q_get_producer_eventfd (sq);
+ svm_msg_q_set_consumer_eventfd (sq, fd);
+ fd = svm_msg_q_get_producer_eventfd (cq);
+ svm_msg_q_set_consumer_eventfd (cq, fd);
+}
+
+int
+app_worker_local_session_connect (app_worker_t * client_wrk,
+ app_worker_t * server_wrk,
+ local_session_t * ll, u32 opaque)
+{
+ u32 seg_size, evt_q_sz, evt_q_elts, margin = 16 << 10;
+ u32 round_rx_fifo_sz, round_tx_fifo_sz, sm_index;
+ segment_manager_properties_t *props, *cprops;
+ int rv, has_transport, seg_index;
+ svm_fifo_segment_private_t *seg;
+ application_t *server, *client;
+ segment_manager_t *sm;
+ local_session_t *ls;
+ svm_msg_q_t *sq, *cq;
+ u64 segment_handle;
+
+ ls = app_worker_local_session_alloc (server_wrk);
+ server = application_get (server_wrk->app_index);
+ client = application_get (client_wrk->app_index);
+
+ props = application_segment_manager_properties (server);
+ cprops = application_segment_manager_properties (client);
+ evt_q_elts = props->evt_q_size + cprops->evt_q_size;
+ evt_q_sz = segment_manager_evt_q_expected_size (evt_q_elts);
+ round_rx_fifo_sz = 1 << max_log2 (props->rx_fifo_size);
+ round_tx_fifo_sz = 1 << max_log2 (props->tx_fifo_size);
+ seg_size = round_rx_fifo_sz + round_tx_fifo_sz + evt_q_sz + margin;
+
+ has_transport = session_has_transport ((session_t *) ll);
+ if (!has_transport)
+ {
+ /* Local sessions don't have backing transport */
+ ls->port = ll->port;
+ sm = app_worker_get_local_segment_manager (server_wrk);
+ }
+ else
+ {
+ session_t *sl = (session_t *) ll;
+ transport_connection_t *tc;
+ tc = listen_session_get_transport (sl);
+ ls->port = tc->lcl_port;
+ sm = app_worker_get_listen_segment_manager (server_wrk, sl);
+ }
+
+ seg_index = segment_manager_add_segment (sm, seg_size);
+ if (seg_index < 0)
+ {
+ clib_warning ("failed to add new cut-through segment");
+ return seg_index;
+ }
+ seg = segment_manager_get_segment_w_lock (sm, seg_index);
+ sq = segment_manager_alloc_queue (seg, props);
+ cq = segment_manager_alloc_queue (seg, cprops);
+
+ if (props->use_mq_eventfd)
+ application_local_session_fix_eventds (sq, cq);
+
+ ls->server_evt_q = pointer_to_uword (sq);
+ ls->client_evt_q = pointer_to_uword (cq);
+ rv = segment_manager_try_alloc_fifos (seg, props->rx_fifo_size,
+ props->tx_fifo_size,
+ &ls->rx_fifo, &ls->tx_fifo);
+ if (rv)
+ {
+ clib_warning ("failed to add fifos in cut-through segment");
+ segment_manager_segment_reader_unlock (sm);
+ goto failed;
+ }
+ sm_index = segment_manager_index (sm);
+ ls->rx_fifo->ct_session_index = ls->session_index;
+ ls->tx_fifo->ct_session_index = ls->session_index;
+ ls->rx_fifo->segment_manager = sm_index;
+ ls->tx_fifo->segment_manager = sm_index;
+ ls->rx_fifo->segment_index = seg_index;
+ ls->tx_fifo->segment_index = seg_index;
+ ls->svm_segment_index = seg_index;
+ ls->listener_index = ll->session_index;
+ ls->client_wrk_index = client_wrk->wrk_index;
+ ls->client_opaque = opaque;
+ ls->listener_session_type = ll->session_type;
+ ls->session_state = SESSION_STATE_READY;
+
+ segment_handle = segment_manager_segment_handle (sm, seg);
+ if ((rv = server->cb_fns.add_segment_callback (server_wrk->api_client_index,
+ segment_handle)))
+ {
+ clib_warning ("failed to notify server of new segment");
+ segment_manager_segment_reader_unlock (sm);
+ goto failed;
+ }
+ segment_manager_segment_reader_unlock (sm);
+ if ((rv = server->cb_fns.session_accept_callback ((session_t *) ls)))
+ {
+ clib_warning ("failed to send accept cut-through notify to server");
+ goto failed;
+ }
+ if (server->flags & APP_OPTIONS_FLAGS_IS_BUILTIN)
+ app_worker_local_session_connect_notify (ls);
+
+ return 0;
+
+failed:
+ if (!has_transport)
+ segment_manager_del_segment (sm, seg);
+ return rv;
+}
+
+int
+app_worker_local_session_connect_notify (local_session_t * ls)
+{
+ svm_fifo_segment_private_t *seg;
+ app_worker_t *client_wrk, *server_wrk;
+ segment_manager_t *sm;
+ application_t *client;
+ int rv, is_fail = 0;
+ u64 segment_handle;
+ u64 client_key;
+
+ client_wrk = app_worker_get (ls->client_wrk_index);
+ server_wrk = app_worker_get (ls->app_wrk_index);
+ client = application_get (client_wrk->app_index);
+
+ sm = app_worker_get_local_segment_manager_w_session (server_wrk, ls);
+ seg = segment_manager_get_segment_w_lock (sm, ls->svm_segment_index);
+ segment_handle = segment_manager_segment_handle (sm, seg);
+ if ((rv = client->cb_fns.add_segment_callback (client_wrk->api_client_index,
+ segment_handle)))
+ {
+ clib_warning ("failed to notify client %u of new segment",
+ ls->client_wrk_index);
+ segment_manager_segment_reader_unlock (sm);
+ app_worker_local_session_disconnect (ls->client_wrk_index, ls);
+ is_fail = 1;
+ }
+ else
+ {
+ segment_manager_segment_reader_unlock (sm);
+ }
+
+ client->cb_fns.session_connected_callback (client_wrk->wrk_index,
+ ls->client_opaque,
+ (session_t *) ls, is_fail);
+
+ client_key = application_client_local_connect_key (ls);
+ hash_set (client_wrk->local_connects, client_key, client_key);
+ return 0;
+}
+
+int
+app_worker_local_session_disconnect (u32 app_index, local_session_t * ls)
+{
+ app_worker_t *client_wrk, *server_wrk;
+ u8 is_server = 0, is_client = 0;
+ application_t *app;
+
+ app = application_get_if_valid (app_index);
+ if (!app)
+ return 0;
+
+ client_wrk = app_worker_get_if_valid (ls->client_wrk_index);
+ server_wrk = app_worker_get (ls->app_wrk_index);
+
+ if (server_wrk->app_index == app_index)
+ is_server = 1;
+ else if (client_wrk && client_wrk->app_index == app_index)
+ is_client = 1;
+
+ if (!is_server && !is_client)
+ {
+ clib_warning ("app %u is neither client nor server for session 0x%lx",
+ app_index, application_local_session_handle (ls));
+ return VNET_API_ERROR_INVALID_VALUE;
+ }
+
+ if (ls->session_state == SESSION_STATE_CLOSED)
+ return app_worker_local_session_cleanup (client_wrk, server_wrk, ls);
+
+ if (app_index == ls->client_wrk_index)
+ {
+ mq_send_local_session_disconnected_cb (ls->app_wrk_index, ls);
+ }
+ else
+ {
+ if (!client_wrk)
+ {
+ return app_worker_local_session_cleanup (client_wrk, server_wrk,
+ ls);
+ }
+ else if (ls->session_state < SESSION_STATE_READY)
+ {
+ application_t *client = application_get (client_wrk->app_index);
+ client->cb_fns.session_connected_callback (client_wrk->wrk_index,
+ ls->client_opaque,
+ (session_t *) ls,
+ 1 /* is_fail */ );
+ ls->session_state = SESSION_STATE_CLOSED;
+ return app_worker_local_session_cleanup (client_wrk, server_wrk,
+ ls);
+ }
+ else
+ {
+ mq_send_local_session_disconnected_cb (client_wrk->wrk_index, ls);
+ }
+ }
+
+ ls->session_state = SESSION_STATE_CLOSED;
+
+ return 0;
+}
+
+int
+app_worker_local_session_disconnect_w_index (u32 app_wrk_index, u32 ls_index)
+{
+ app_worker_t *app_wrk;
+ local_session_t *ls;
+ app_wrk = app_worker_get (app_wrk_index);
+ ls = app_worker_get_local_session (app_wrk, ls_index);
+ return app_worker_local_session_disconnect (app_wrk_index, ls);
+}
+
+u8 *
+format_app_worker_listener (u8 * s, va_list * args)
+{
+ app_worker_t *app_wrk = va_arg (*args, app_worker_t *);
+ u64 handle = va_arg (*args, u64);
+ u32 sm_index = va_arg (*args, u32);
+ int verbose = va_arg (*args, int);
+ session_t *listener;
+ const u8 *app_name;
+ u8 *str;
+
+ if (!app_wrk)
+ {
+ if (verbose)
+ s = format (s, "%-40s%-25s%=10s%-15s%-15s%-10s", "Connection", "App",
+ "Wrk", "API Client", "ListenerID", "SegManager");
+ else
+ s = format (s, "%-40s%-25s%=10s", "Connection", "App", "Wrk");
+
+ return s;
+ }
+
+ app_name = application_name_from_index (app_wrk->app_index);
+ listener = listen_session_get_from_handle (handle);
+ str = format (0, "%U", format_stream_session, listener, verbose);
+
+ if (verbose)
+ {
+ char buf[32];
+ sprintf (buf, "%u(%u)", app_wrk->wrk_map_index, app_wrk->wrk_index);
+ s = format (s, "%-40s%-25s%=10s%-15u%-15u%-10u", str, app_name,
+ buf, app_wrk->api_client_index, handle, sm_index);
+ }
+ else
+ s = format (s, "%-40s%-25s%=10u", str, app_name, app_wrk->wrk_map_index);
+
+ return s;
+}
+
+u8 *
+format_app_worker (u8 * s, va_list * args)
+{
+ app_worker_t *app_wrk = va_arg (*args, app_worker_t *);
+ u32 indent = 1;
+
+ s = format (s, "%U wrk-index %u app-index %u map-index %u "
+ "api-client-index %d\n", format_white_space, indent,
+ app_wrk->wrk_index, app_wrk->app_index, app_wrk->wrk_map_index,
+ app_wrk->api_client_index);
+ return s;
+}
+
+void
+app_worker_format_connects (app_worker_t * app_wrk, int verbose)
+{
+ svm_fifo_segment_private_t *fifo_segment;
+ vlib_main_t *vm = vlib_get_main ();
+ segment_manager_t *sm;
+ const u8 *app_name;
+ u8 *s = 0;
+
+ /* Header */
+ if (!app_wrk)
+ {
+ if (verbose)
+ vlib_cli_output (vm, "%-40s%-20s%-15s%-10s", "Connection", "App",
+ "API Client", "SegManager");
+ else
+ vlib_cli_output (vm, "%-40s%-20s", "Connection", "App");
+ return;
+ }
+
+ if (app_wrk->connects_seg_manager == (u32) ~ 0)
+ return;
+
+ app_name = application_name_from_index (app_wrk->app_index);
+
+ /* Across all fifo segments */
+ sm = segment_manager_get (app_wrk->connects_seg_manager);
+
+ /* *INDENT-OFF* */
+ segment_manager_foreach_segment_w_lock (fifo_segment, sm, ({
+ svm_fifo_t *fifo;
+ u8 *str;
+
+ fifo = svm_fifo_segment_get_fifo_list (fifo_segment);
+ while (fifo)
+ {
+ u32 session_index, thread_index;
+ session_t *session;
+
+ session_index = fifo->master_session_index;
+ thread_index = fifo->master_thread_index;
+
+ session = session_get (session_index, thread_index);
+ str = format (0, "%U", format_stream_session, session, verbose);
+
+ if (verbose)
+ s = format (s, "%-40s%-20s%-15u%-10u", str, app_name,
+ app_wrk->api_client_index, app_wrk->connects_seg_manager);
+ else
+ s = format (s, "%-40s%-20s", str, app_name);
+
+ vlib_cli_output (vm, "%v", s);
+ vec_reset_length (s);
+ vec_free (str);
+
+ fifo = fifo->next;
+ }
+ vec_free (s);
+ }));
+ /* *INDENT-ON* */
+}
+
+void
+app_worker_format_local_sessions (app_worker_t * app_wrk, int verbose)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ local_session_t *ls;
+ transport_proto_t tp;
+ u8 *conn = 0;
+
+ /* Header */
+ if (app_wrk == 0)
+ {
+ vlib_cli_output (vm, "%-40s%-15s%-20s", "Connection", "ServerApp",
+ "ClientApp");
+ return;
+ }
+
+ if (!pool_elts (app_wrk->local_sessions)
+ && !pool_elts (app_wrk->local_connects))
+ return;
+
+ /* *INDENT-OFF* */
+ pool_foreach (ls, app_wrk->local_sessions, ({
+ tp = session_type_transport_proto(ls->listener_session_type);
+ conn = format (0, "[L][%U] *:%u", format_transport_proto_short, tp,
+ ls->port);
+ vlib_cli_output (vm, "%-40v%-15u%-20u", conn, ls->app_wrk_index,
+ ls->client_wrk_index);
+ vec_reset_length (conn);
+ }));
+ /* *INDENT-ON* */
+
+ vec_free (conn);
+}
+
+void
+app_worker_format_local_connects (app_worker_t * app, int verbose)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ u32 app_wrk_index, session_index;
+ app_worker_t *server_wrk;
+ local_session_t *ls;
+ u64 client_key;
+ u64 value;
+
+ /* Header */
+ if (app == 0)
+ {
+ if (verbose)
+ vlib_cli_output (vm, "%-40s%-15s%-20s%-10s", "Connection", "App",
+ "Peer App", "SegManager");
+ else
+ vlib_cli_output (vm, "%-40s%-15s%-20s", "Connection", "App",
+ "Peer App");
+ return;
+ }
+
+ if (!app->local_connects)
+ return;
+
+ /* *INDENT-OFF* */
+ hash_foreach (client_key, value, app->local_connects, ({
+ application_client_local_connect_key_parse (client_key, &app_wrk_index,
+ &session_index);
+ server_wrk = app_worker_get (app_wrk_index);
+ ls = app_worker_get_local_session (server_wrk, session_index);
+ vlib_cli_output (vm, "%-40s%-15s%-20s", "TODO", ls->app_wrk_index,
+ ls->client_wrk_index);
+ }));
+ /* *INDENT-ON* */
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
if (fifo->ct_session_index != SVM_FIFO_INVALID_SESSION_INDEX)
{
svm_fifo_t *next = fifo->next;
- application_local_session_disconnect_w_index (sm->app_wrk_index,
+ app_worker_local_session_disconnect_w_index (sm->app_wrk_index,
fifo->ct_session_index);
fifo = next;
continue;
if (session_handle_is_local (mp->handle))
{
- ls = application_get_local_session_from_handle (mp->handle);
+ ls = app_worker_get_local_session_from_handle (mp->handle);
if (!ls || ls->app_wrk_index != mp->context)
{
clib_warning ("server %u doesn't own local handle %llu",
mp->context, mp->handle);
return;
}
- if (application_local_session_connect_notify (ls))
+ if (app_worker_local_session_connect_notify (ls))
return;
ls->session_state = SESSION_STATE_READY;
}
if (session_handle_is_local (mp->handle))
{
- ls = application_get_local_session_from_handle (mp->handle);
+ ls = app_worker_get_local_session_from_handle (mp->handle);
if (!ls)
{
clib_warning ("unknown local handle 0x%lx", mp->handle);
mp->context, mp->handle);
return;
}
- if (application_local_session_connect_notify (ls))
+ if (app_worker_local_session_connect_notify (ls))
return;
ls->session_state = SESSION_STATE_READY;
}
Code Review / vpp.git / commitdiff