#include <vnet/dpo/load_balance.h>
#include <vnet/fib/ip4_fib.h>
#include <vnet/session/application.h>
+#include <vnet/tcp/tcp.h>
+#include <vnet/session/session_debug.h>
/**
* Per-type vector of transport protocol virtual function tables
}
transport_connection_t *
-stream_session_lookup_transport4 (session_manager_main_t * smm,
- ip4_address_t * lcl, ip4_address_t * rmt,
+stream_session_lookup_transport4 (ip4_address_t * lcl, ip4_address_t * rmt,
u16 lcl_port, u16 rmt_port, u8 proto,
u32 my_thread_index)
{
+ session_manager_main_t *smm = &session_manager_main;
session_kv4_t kv4;
stream_session_t *s;
int rv;
}
transport_connection_t *
-stream_session_lookup_transport6 (session_manager_main_t * smm,
- ip6_address_t * lcl, ip6_address_t * rmt,
+stream_session_lookup_transport6 (ip6_address_t * lcl, ip6_address_t * rmt,
u16 lcl_port, u16 rmt_port, u8 proto,
u32 my_thread_index)
{
+ session_manager_main_t *smm = &session_manager_main;
stream_session_t *s;
session_kv6_t kv6;
int rv;
/* Finally, try half-open connections */
rv = clib_bihash_search_inline_48_8 (&smm->v6_half_open_hash, &kv6);
if (rv == 0)
- return tp_vfts[s->session_type].get_half_open (kv6.value & 0xFFFFFFFF);
+ return tp_vfts[proto].get_half_open (kv6.value & 0xFFFFFFFF);
return 0;
}
u8 * added_a_segment)
{
svm_fifo_segment_private_t *fifo_segment;
- u32 fifo_size, default_fifo_size = 8192 /* TODO config */ ;
+ u32 fifo_size, default_fifo_size = 128 << 10; /* TODO config */
int i;
*added_a_segment = 0;
goto again;
}
else
- return SESSION_ERROR_NO_SPACE;
+ {
+ clib_warning ("No space to allocate fifos!");
+ return SESSION_ERROR_NO_SPACE;
+ }
}
return 0;
}
/* Get session's server */
app = application_get (s->app_index);
- /* Fabricate event */
- evt.fifo = s->server_rx_fifo;
- evt.event_type = FIFO_EVENT_SERVER_RX;
- evt.event_id = serial_number++;
- evt.enqueue_length = svm_fifo_max_dequeue (s->server_rx_fifo);
-
- /* Add event to server's event queue */
- q = app->event_queue;
+ /* Built-in server? Hand event to the callback... */
+ if (app->cb_fns.builtin_server_rx_callback)
+ return app->cb_fns.builtin_server_rx_callback (s);
- /* Based on request block (or not) for lack of space */
- if (block || PREDICT_TRUE (q->cursize < q->maxsize))
- unix_shared_memory_queue_add (app->event_queue, (u8 *) & evt,
- 0 /* do wait for mutex */ );
- else
- return -1;
-
- if (1)
+ /* If no event, send one */
+ if (svm_fifo_set_event (s->server_rx_fifo))
{
- ELOG_TYPE_DECLARE (e) =
- {
- .format = "evt-enqueue: id %d length %d",.format_args = "i4i4",};
- struct
- {
- u32 data[2];
- } *ed;
- ed = ELOG_DATA (&vlib_global_main.elog_main, e);
- ed->data[0] = evt.event_id;
- ed->data[1] = evt.enqueue_length;
+ /* Fabricate event */
+ evt.fifo = s->server_rx_fifo;
+ evt.event_type = FIFO_EVENT_SERVER_RX;
+ evt.event_id = serial_number++;
+
+ /* Add event to server's event queue */
+ q = app->event_queue;
+
+ /* Based on request block (or not) for lack of space */
+ if (block || PREDICT_TRUE (q->cursize < q->maxsize))
+ unix_shared_memory_queue_add (app->event_queue, (u8 *) & evt,
+ 0 /* do wait for mutex */ );
+ else
+ {
+ clib_warning ("fifo full");
+ return -1;
+ }
}
+ /* *INDENT-OFF* */
+ SESSION_EVT_DBG(SESSION_EVT_ENQ, s, ({
+ ed->data[0] = evt.event_id;
+ ed->data[1] = svm_fifo_max_dequeue (s->server_rx_fifo);
+ }));
+ /* *INDENT-ON* */
+
return 0;
}
s->app_index = srv->index;
/* Transport bind/listen */
- tci = tp_vfts[srv->session_type].bind (smm->vlib_main, s->session_index, ip,
- port);
+ tci = tp_vfts[srv->session_type].bind (s->session_index, ip, port);
/* Attach transport to session */
s->connection_index = tci;
tc = tp_vfts[srv->session_type].get_listener (listener->connection_index);
stream_session_table_del_for_tc (smm, listener->session_type, tc);
- tp_vfts[srv->session_type].unbind (smm->vlib_main,
- listener->connection_index);
+ tp_vfts[srv->session_type].unbind (listener->connection_index);
pool_put (smm->listen_sessions[srv->session_type], listener);
}
connects_session_manager_init (session_manager_main_t * smm, u8 session_type)
{
session_manager_t *sm;
- u32 connect_fifo_size = 8 << 10; /* Config? */
+ u32 connect_fifo_size = 256 << 10; /* Config? */
u32 default_segment_size = 1 << 20;
pool_get (smm->session_managers, sm);
session_manager_main_t *smm = vnet_get_session_manager_main ();
svm_fifo_segment_private_t *fifo_segment;
application_t *app;
- int rv;
- /* delete from the main lookup table */
- rv = stream_session_table_del (smm, s);
-
- if (rv)
- clib_warning ("hash delete error, rv %d", rv);
+ /* Delete from the main lookup table. */
+ stream_session_table_del (smm, s);
/* Cleanup fifo segments */
fifo_segment = svm_fifo_get_segment (s->server_segment_index);
svm_fifo_segment_free_fifo (fifo_segment, s->server_rx_fifo);
svm_fifo_segment_free_fifo (fifo_segment, s->server_tx_fifo);
- /* Cleanup app if client */
- app = application_get (s->app_index);
+ app = application_get_if_valid (s->app_index);
+
+ /* No app. A possibility: after disconnect application called unbind */
+ if (!app)
+ return;
+
if (app->mode == APP_CLIENT)
{
+ /* Cleanup app if client */
application_del (app);
}
else if (app->mode == APP_SERVER)
svm_fifo_t **fifos;
u32 fifo_index;
+ /* For server, see if any segments can be removed */
sm = session_manager_get (app->session_manager_index);
/* Delete fifo */
{
stream_session_t *s;
+ /* App might've been removed already */
s = stream_session_get_if_valid (tc->s_index, tc->thread_index);
if (!s)
{
- clib_warning ("Surprised!");
return;
}
stream_session_delete (s);
return 0;
}
-void
+int
stream_session_open (u8 sst, ip46_address_t * addr, u16 port_host_byte_order,
u32 app_index)
{
transport_connection_t *tc;
u32 tci;
u64 value;
+ int rv;
/* Ask transport to open connection */
- tci = tp_vfts[sst].open (addr, port_host_byte_order);
+ rv = tp_vfts[sst].open (addr, port_host_byte_order);
+ if (rv < 0)
+ {
+ clib_warning ("Transport failed to open connection.");
+ return VNET_API_ERROR_SESSION_CONNECT_FAIL;
+ }
+
+ tci = rv;
/* Get transport connection */
tc = tp_vfts[sst].get_half_open (tci);
/* Add to the half-open lookup table */
stream_session_half_open_table_add (sst, tc, value);
+
+ return 0;
}
/**
void
stream_session_disconnect (stream_session_t * s)
{
- tp_vfts[s->session_type].close (s->connection_index, s->thread_index);
+// session_fifo_event_t evt;
+
s->session_state = SESSION_STATE_CLOSED;
+ /* RPC to vpp evt queue in the right thread */
+
+ tp_vfts[s->session_type].close (s->connection_index, s->thread_index);
+
+// {
+// /* Fabricate event */
+// evt.fifo = s->server_rx_fifo;
+// evt.event_type = FIFO_EVENT_SERVER_RX;
+// evt.event_id = serial_number++;
+//
+// /* Based on request block (or not) for lack of space */
+// if (PREDICT_TRUE(q->cursize < q->maxsize))
+// unix_shared_memory_queue_add (app->event_queue, (u8 *) &evt,
+// 0 /* do wait for mutex */);
+// else
+// {
+// clib_warning("fifo full");
+// return -1;
+// }
+// }
}
/**
* Cleanup transport and session state.
+ *
+ * Notify transport of the cleanup, wait for a delete notify to actually
+ * remove the session state.
*/
void
stream_session_cleanup (stream_session_t * s)
{
+ session_manager_main_t *smm = &session_manager_main;
+ int rv;
+
+ s->session_state = SESSION_STATE_CLOSED;
+
+ /* Delete from the main lookup table to avoid more enqueues */
+ rv = stream_session_table_del (smm, s);
+ if (rv)
+ clib_warning ("hash delete error, rv %d", rv);
+
tp_vfts[s->session_type].cleanup (s->connection_index, s->thread_index);
- stream_session_delete (s);
}
void
tp_vfts[type] = *vft;
/* If an offset function is provided, then peek instead of dequeue */
- smm->session_rx_fns[type] =
- (vft->rx_fifo_offset) ? session_fifo_rx_peek : session_fifo_rx_dequeue;
+ smm->session_tx_fns[type] =
+ (vft->tx_fifo_offset) ? session_tx_fifo_peek_and_snd :
+ session_tx_fifo_dequeue_and_snd;
}
transport_proto_vft_t *
}
static clib_error_t *
-session_manager_main_init (vlib_main_t * vm)
+session_manager_main_enable (vlib_main_t * vm)
{
- u32 num_threads;
- vlib_thread_main_t *vtm = vlib_get_thread_main ();
session_manager_main_t *smm = &session_manager_main;
+ vlib_thread_main_t *vtm = vlib_get_thread_main ();
+ u32 num_threads;
int i;
- smm->vlib_main = vm;
- smm->vnet_main = vnet_get_main ();
-
num_threads = 1 /* main thread */ + vtm->n_threads;
if (num_threads < 1)
for (i = 0; i < SESSION_N_TYPES; i++)
smm->connect_manager_index[i] = INVALID_INDEX;
+ smm->is_enabled = 1;
+
+ /* Enable TCP transport */
+ vnet_tcp_enable_disable (vm, 1);
+
+ return 0;
+}
+
+clib_error_t *
+vnet_session_enable_disable (vlib_main_t * vm, u8 is_en)
+{
+ if (is_en)
+ {
+ if (session_manager_main.is_enabled)
+ return 0;
+
+ vlib_node_set_state (vm, session_queue_node.index,
+ VLIB_NODE_STATE_POLLING);
+
+ return session_manager_main_enable (vm);
+ }
+ else
+ {
+ session_manager_main.is_enabled = 0;
+ vlib_node_set_state (vm, session_queue_node.index,
+ VLIB_NODE_STATE_DISABLED);
+ }
+
return 0;
}
-VLIB_INIT_FUNCTION (session_manager_main_init);
+clib_error_t *
+session_manager_main_init (vlib_main_t * vm)
+{
+ session_manager_main_t *smm = &session_manager_main;
+
+ smm->vlib_main = vm;
+ smm->vnet_main = vnet_get_main ();
+ smm->is_enabled = 0;
+
+ return 0;
+}
+VLIB_INIT_FUNCTION (session_manager_main_init)
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff