#include <vnet/session/application_local.h>
#include <vnet/session/session.h>
-typedef struct ct_connection_
+typedef struct ct_main_
{
- transport_connection_t connection;
- u32 client_wrk;
- u32 server_wrk;
- u32 transport_listener_index;
- transport_proto_t actual_tp;
-} ct_connection_t;
+ ct_connection_t **connections; /**< Per-worker connection pools */
+ u32 n_workers; /**< Number of vpp workers */
+ u32 n_sessions; /**< Cumulative sessions counter */
+} ct_main_t;
-ct_connection_t *connections;
+static ct_main_t ct_main;
-ct_connection_t *
-ct_connection_alloc (void)
+static ct_connection_t *
+ct_connection_alloc (u32 thread_index)
{
ct_connection_t *ct;
- pool_get_zero (connections, ct);
- ct->c_c_index = ct - connections;
- ct->c_thread_index = 0;
+ pool_get_zero (ct_main.connections[thread_index], ct);
+ ct->c_c_index = ct - ct_main.connections[thread_index];
+ ct->c_thread_index = thread_index;
ct->client_wrk = ~0;
ct->server_wrk = ~0;
return ct;
}
-ct_connection_t *
-ct_connection_get (u32 ct_index)
+static ct_connection_t *
+ct_connection_get (u32 ct_index, u32 thread_index)
{
- if (pool_is_free_index (connections, ct_index))
+ if (pool_is_free_index (ct_main.connections[thread_index], ct_index))
return 0;
- return pool_elt_at_index (connections, ct_index);
+ return pool_elt_at_index (ct_main.connections[thread_index], ct_index);
}
-void
+static void
ct_connection_free (ct_connection_t * ct)
{
if (CLIB_DEBUG)
- memset (ct, 0xfc, sizeof (*ct));
- pool_put (connections, ct);
+ {
+ u32 thread_index = ct->c_thread_index;
+ memset (ct, 0xfc, sizeof (*ct));
+ pool_put (ct_main.connections[thread_index], ct);
+ return;
+ }
+ pool_put (ct_main.connections[ct->c_thread_index], ct);
+}
+
+session_t *
+ct_session_get_peer (session_t * s)
+{
+ ct_connection_t *ct, *peer_ct;
+ ct = ct_connection_get (s->connection_index, s->thread_index);
+ peer_ct = ct_connection_get (ct->peer_index, s->thread_index);
+ return session_get (peer_ct->c_s_index, s->thread_index);
}
void
-application_local_listener_session_endpoint (session_t * ll,
- session_endpoint_t * sep)
+ct_session_endpoint (session_t * ll, session_endpoint_t * sep)
{
ct_connection_t *ct;
ct = (ct_connection_t *) session_get_transport (ll);
sep->transport_proto = ct->actual_tp;
sep->port = ct->c_lcl_port;
sep->is_ip4 = ct->c_is_ip4;
+ ip_copy (&sep->ip, &ct->c_lcl_ip, ct->c_is_ip4);
}
-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);
-}
-
-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;
-}
-
-void
-app_worker_local_sessions_free (app_worker_t * app_wrk)
+int
+ct_session_connect_notify (session_t * ss)
{
- u32 index, server_wrk_index, session_index;
- u64 handle, *handles = 0;
- app_worker_t *server_wrk;
+ u32 ss_index, opaque, thread_index;
+ ct_connection_t *sct, *cct;
+ app_worker_t *client_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);
- }
- }
+ fifo_segment_t *seg;
+ u64 segment_handle;
+ int err = 0;
+ session_t *cs;
- sm = segment_manager_get (app_wrk->local_segment_manager);
- sm->app_wrk_index = SEGMENT_MANAGER_INVALID_APP_INDEX;
- segment_manager_del (sm);
-}
+ ss_index = ss->session_index;
+ thread_index = ss->thread_index;
+ sct = (ct_connection_t *) session_get_transport (ss);
+ client_wrk = app_worker_get (sct->client_wrk);
+ opaque = sct->client_opaque;
-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);
- }
+ sm = segment_manager_get (ss->rx_fifo->segment_manager);
+ seg = segment_manager_get_segment_w_lock (sm, ss->rx_fifo->segment_index);
+ segment_handle = segment_manager_segment_handle (sm, seg);
- seg = segment_manager_get_segment (sm, ls->svm_segment_index);
- if (client_wrk)
+ if ((err = app_worker_add_segment_notify (client_wrk, segment_handle)))
{
- client_key = application_client_local_connect_key (ls);
- hash_unset (client_wrk->local_connects, client_key);
+ clib_warning ("failed to notify client %u of new segment",
+ sct->client_wrk);
+ segment_manager_segment_reader_unlock (sm);
+ session_close (ss);
+ goto error;
}
-
- if (!has_transport)
+ else
{
- 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);
+ segment_manager_segment_reader_unlock (sm);
}
- app_worker_local_session_free (server_wrk, ls);
+ /* Alloc client session */
+ cct = ct_connection_get (sct->peer_index, thread_index);
- return 0;
-}
+ cs = session_alloc (thread_index);
+ ss = session_get (ss_index, thread_index);
+ cs->session_type = ss->session_type;
+ cs->listener_handle = SESSION_INVALID_HANDLE;
+ cs->session_state = SESSION_STATE_CONNECTING;
+ cs->app_wrk_index = client_wrk->wrk_index;
+ cs->connection_index = cct->c_c_index;
-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;
+ cct->c_s_index = cs->session_index;
+ cct->client_rx_fifo = ss->tx_fifo;
+ cct->client_tx_fifo = ss->rx_fifo;
- 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);
+ cct->client_rx_fifo->refcnt++;
+ cct->client_tx_fifo->refcnt++;
- 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)))
+ /* This will allocate fifos for the session. They won't be used for
+ * exchanging data but they will be used to close the connection if
+ * the segment manager/worker is freed */
+ if ((err = app_worker_init_connected (client_wrk, cs)))
{
- 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;
+ session_close (ss);
+ session_free (cs);
+ goto error;
}
- else
+
+ cs->session_state = SESSION_STATE_CONNECTING;
+
+ if (app_worker_connect_notify (client_wrk, cs, err, opaque))
{
- segment_manager_segment_reader_unlock (sm);
+ session_close (ss);
+ segment_manager_dealloc_fifos (cs->rx_fifo, cs->tx_fifo);
+ session_free (cs);
+ return -1;
}
- client->cb_fns.session_connected_callback (client_wrk->wrk_index,
- ls->client_opaque,
- (session_t *) ls, is_fail);
+ cs = session_get (cct->c_s_index, cct->c_thread_index);
+ cs->session_state = SESSION_STATE_READY;
- client_key = application_client_local_connect_key (ls);
- hash_set (client_wrk->local_connects, client_key, client_key);
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);
+error:
+ app_worker_connect_notify (client_wrk, 0, err, opaque);
+ return -1;
}
-int
-app_worker_local_session_connect (app_worker_t * client_wrk,
- app_worker_t * server_wrk,
- session_t * ll, u32 opaque)
+static int
+ct_init_accepted_session (app_worker_t * server_wrk,
+ ct_connection_t * ct, session_t * ls,
+ session_t * ll)
{
- 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;
+ u32 round_rx_fifo_sz, round_tx_fifo_sz, sm_index, seg_size;
+ segment_manager_props_t *props;
+ application_t *server;
segment_manager_t *sm;
- local_session_t *ls;
- svm_msg_q_t *sq, *cq;
+ u32 margin = 16 << 10;
+ fifo_segment_t *seg;
u64 segment_handle;
+ int seg_index, rv;
- 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 (ll);
- if (!has_transport)
- {
- /* Local sessions don't have backing transport */
- transport_connection_t *tc;
- tc = session_get_transport (ll);
- ls->port = tc->lcl_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);
+ /* Increase size because of inefficient chunk allocations. Depending on
+ * how data is consumed, it may happen that more chunks than needed are
+ * allocated.
+ * TODO should remove once allocations are done more efficiently */
+ seg_size = 4 * (round_rx_fifo_sz + round_tx_fifo_sz + margin);
+
+ sm = app_worker_get_listen_segment_manager (server_wrk, ll);
+ seg_index = segment_manager_add_segment (sm, seg_size, 0);
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);
+ rv = segment_manager_try_alloc_fifos (seg, ls->thread_index,
+ 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->shr->master_session_index = ls->session_index;
+ ls->tx_fifo->shr->master_session_index = ls->session_index;
+ ls->rx_fifo->master_thread_index = ls->thread_index;
+ ls->tx_fifo->master_thread_index = ls->thread_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)))
+ if ((rv = app_worker_add_segment_notify (server_wrk, 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);
+ ct->segment_handle = segment_handle;
return 0;
failed:
- if (!has_transport)
- segment_manager_del_segment (sm, seg);
+ segment_manager_lock_and_del_segment (sm, seg_index);
return rv;
}
-int
-app_worker_local_session_disconnect (u32 app_wrk_index, local_session_t * ls)
+typedef struct ct_accept_rpc_args
{
- app_worker_t *client_wrk, *server_wrk;
+ u32 ll_s_index;
+ u32 thread_index;
+ ip46_address_t ip;
+ u16 port;
+ u8 is_ip4;
+ u32 opaque;
+ u32 client_wrk_index;
+} ct_accept_rpc_args_t;
- client_wrk = app_worker_get_if_valid (ls->client_wrk_index);
- server_wrk = app_worker_get (ls->app_wrk_index);
+static void
+ct_accept_rpc_wrk_handler (void *accept_args)
+{
+ ct_accept_rpc_args_t *args = (ct_accept_rpc_args_t *) accept_args;
+ ct_connection_t *sct, *cct, *ll_ct;
+ app_worker_t *server_wrk;
+ session_t *ss, *ll;
+ u32 cct_index;
- if (ls->session_state == SESSION_STATE_CLOSED)
- return app_worker_local_session_cleanup (client_wrk, server_wrk, ls);
+ ll = listen_session_get (args->ll_s_index);
- if (app_wrk_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);
- }
- }
+ cct = ct_connection_alloc (args->thread_index);
+ cct_index = cct->c_c_index;
+ sct = ct_connection_alloc (args->thread_index);
+ ll_ct = ct_connection_get (ll->connection_index, 0 /* listener thread */ );
- ls->session_state = SESSION_STATE_CLOSED;
+ /*
+ * Alloc and init client transport
+ */
+ cct = ct_connection_get (cct_index, args->thread_index);
+ cct->c_rmt_port = args->port;
+ cct->c_lcl_port = 0;
+ cct->c_is_ip4 = args->is_ip4;
+ clib_memcpy (&cct->c_rmt_ip, &args->ip, sizeof (args->ip));
+ cct->actual_tp = ll_ct->actual_tp;
+ cct->is_client = 1;
+ cct->c_s_index = ~0;
- return 0;
-}
+ /*
+ * Init server transport
+ */
+ sct->c_rmt_port = 0;
+ sct->c_lcl_port = ll_ct->c_lcl_port;
+ sct->c_is_ip4 = args->is_ip4;
+ clib_memcpy (&sct->c_lcl_ip, &ll_ct->c_lcl_ip, sizeof (ll_ct->c_lcl_ip));
+ sct->client_wrk = args->client_wrk_index;
+ sct->c_proto = TRANSPORT_PROTO_NONE;
+ sct->client_opaque = args->opaque;
+ sct->actual_tp = ll_ct->actual_tp;
+
+ sct->peer_index = cct->c_c_index;
+ cct->peer_index = sct->c_c_index;
-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);
-}
+ /*
+ * Accept server session. Client session is created only after
+ * server confirms accept.
+ */
+ ss = session_alloc (args->thread_index);
+ ll = listen_session_get (args->ll_s_index);
+ ss->session_type = session_type_from_proto_and_ip (TRANSPORT_PROTO_NONE,
+ sct->c_is_ip4);
+ ss->connection_index = sct->c_c_index;
+ ss->listener_handle = listen_session_get_handle (ll);
+ ss->session_state = SESSION_STATE_CREATED;
-void
-app_worker_format_local_sessions (app_worker_t * app_wrk, int verbose)
-{
- vlib_main_t *vm = vlib_get_main ();
- app_worker_t *client_wrk;
- local_session_t *ls;
- transport_proto_t tp;
- u8 *conn = 0;
+ server_wrk = application_listener_select_worker (ll);
+ ss->app_wrk_index = server_wrk->wrk_index;
+
+ sct->c_s_index = ss->session_index;
+ sct->server_wrk = ss->app_wrk_index;
- /* Header */
- if (app_wrk == 0)
+ if (ct_init_accepted_session (server_wrk, sct, ss, ll))
{
- vlib_cli_output (vm, "%-40s%-15s%-20s", "Connection", "ServerApp",
- "ClientApp");
+ ct_connection_free (sct);
+ session_free (ss);
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);
- client_wrk = app_worker_get (ls->client_wrk_index);
- vlib_cli_output (vm, "%-40v%-15u%-20u", conn, ls->app_index,
- client_wrk->app_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)
+ ss->session_state = SESSION_STATE_ACCEPTING;
+ if (app_worker_accept_notify (server_wrk, ss))
{
- 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");
+ ct_connection_free (sct);
+ segment_manager_dealloc_fifos (ss->rx_fifo, ss->tx_fifo);
+ session_free (ss);
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* */
+ cct->segment_handle = sct->segment_handle;
+
+ clib_mem_free (args);
}
-u32
+static int
+ct_connect (app_worker_t * client_wrk, session_t * ll,
+ session_endpoint_cfg_t * sep)
+{
+ ct_accept_rpc_args_t *args;
+ ct_main_t *cm = &ct_main;
+ u32 thread_index;
+
+ /* Simple round-robin policy for spreading sessions over workers. We skip
+ * thread index 0, i.e., offset the index by 1, when we have workers as it
+ * is the one dedicated to main thread. Note that n_workers does not include
+ * main thread */
+ cm->n_sessions += 1;
+ thread_index = cm->n_workers ? (cm->n_sessions % cm->n_workers) + 1 : 0;
+
+ args = clib_mem_alloc (sizeof (*args));
+ args->ll_s_index = ll->session_index;
+ args->thread_index = thread_index;
+ clib_memcpy_fast (&args->ip, &sep->ip, sizeof (ip46_address_t));
+ args->port = sep->port;
+ args->is_ip4 = sep->is_ip4;
+ args->opaque = sep->opaque;
+ args->client_wrk_index = client_wrk->wrk_index;
+
+ session_send_rpc_evt_to_thread (thread_index, ct_accept_rpc_wrk_handler,
+ args);
+ return 0;
+}
+
+static u32
ct_start_listen (u32 app_listener_index, transport_endpoint_t * tep)
{
session_endpoint_cfg_t *sep;
ct_connection_t *ct;
sep = (session_endpoint_cfg_t *) tep;
- ct = ct_connection_alloc ();
+ ct = ct_connection_alloc (0);
ct->server_wrk = sep->app_wrk_index;
ct->c_is_ip4 = sep->is_ip4;
clib_memcpy (&ct->c_lcl_ip, &sep->ip, sizeof (sep->ip));
ct->c_lcl_port = sep->port;
+ ct->c_s_index = app_listener_index;
ct->actual_tp = sep->transport_proto;
return ct->c_c_index;
}
-u32
+static u32
ct_stop_listen (u32 ct_index)
{
ct_connection_t *ct;
- ct = ct_connection_get (ct_index);
+ ct = ct_connection_get (ct_index, 0);
ct_connection_free (ct);
return 0;
}
-transport_connection_t *
+static transport_connection_t *
ct_listener_get (u32 ct_index)
{
- return (transport_connection_t *) ct_connection_get (ct_index);
+ return (transport_connection_t *) ct_connection_get (ct_index, 0);
+}
+
+static int
+ct_session_connect (transport_endpoint_cfg_t * tep)
+{
+ session_endpoint_cfg_t *sep_ext;
+ session_endpoint_t *sep;
+ app_worker_t *app_wrk;
+ session_handle_t lh;
+ application_t *app;
+ app_listener_t *al;
+ u32 table_index;
+ session_t *ll;
+ u8 fib_proto;
+
+ sep_ext = (session_endpoint_cfg_t *) tep;
+ sep = (session_endpoint_t *) tep;
+ app_wrk = app_worker_get (sep_ext->app_wrk_index);
+ app = application_get (app_wrk->app_index);
+
+ sep->transport_proto = sep_ext->original_tp;
+ table_index = application_local_session_table (app);
+ lh = session_lookup_local_endpoint (table_index, sep);
+ if (lh == SESSION_DROP_HANDLE)
+ return SESSION_E_FILTERED;
+
+ if (lh == SESSION_INVALID_HANDLE)
+ goto global_scope;
+
+ ll = listen_session_get_from_handle (lh);
+ al = app_listener_get_w_session (ll);
+
+ /*
+ * Break loop if rule in local table points to connecting app. This
+ * can happen if client is a generic proxy. Route connect through
+ * global table instead.
+ */
+ if (al->app_index == app->app_index)
+ goto global_scope;
+
+ return ct_connect (app_wrk, ll, sep_ext);
+
+ /*
+ * If nothing found, check the global scope for locally attached
+ * destinations. Make sure first that we're allowed to.
+ */
+
+global_scope:
+ if (session_endpoint_is_local (sep))
+ return SESSION_E_NOROUTE;
+
+ if (!application_has_global_scope (app))
+ return SESSION_E_SCOPE;
+
+ fib_proto = session_endpoint_fib_proto (sep);
+ table_index = session_lookup_get_index_for_fib (fib_proto, sep->fib_index);
+ ll = session_lookup_listener_wildcard (table_index, sep);
+
+ if (ll)
+ return ct_connect (app_wrk, ll, sep_ext);
+
+ /* Failed to connect but no error */
+ return 1;
+}
+
+static void
+ct_session_close (u32 ct_index, u32 thread_index)
+{
+ ct_connection_t *ct, *peer_ct;
+ app_worker_t *app_wrk;
+ session_t *s;
+
+ ct = ct_connection_get (ct_index, thread_index);
+ peer_ct = ct_connection_get (ct->peer_index, thread_index);
+ if (peer_ct)
+ {
+ peer_ct->peer_index = ~0;
+ /* Make sure session was allocated */
+ if (peer_ct->c_s_index != ~0)
+ session_transport_closing_notify (&peer_ct->connection);
+ else
+ ct_connection_free (peer_ct);
+ }
+
+ s = session_get (ct->c_s_index, ct->c_thread_index);
+ app_wrk = app_worker_get_if_valid (s->app_wrk_index);
+ if (app_wrk)
+ app_worker_del_segment_notify (app_wrk, ct->segment_handle);
+ session_free_w_fifos (s);
+ if (ct->is_client)
+ segment_manager_dealloc_fifos (ct->client_rx_fifo, ct->client_tx_fifo);
+
+ ct_connection_free (ct);
+}
+
+static transport_connection_t *
+ct_session_get (u32 ct_index, u32 thread_index)
+{
+ return (transport_connection_t *) ct_connection_get (ct_index,
+ thread_index);
}
static u8 *
return s;
}
-u8 *
+static int
+ct_custom_tx (void *session, transport_send_params_t * sp)
+{
+ session_t *s = (session_t *) session;
+ if (session_has_transport (s))
+ return 0;
+ /* If event enqueued towards peer, remove from scheduler and remove
+ * session tx flag, i.e., accept new tx events. Unset fifo flag now to
+ * avoid missing events if peer did not clear fifo flag yet, which is
+ * interpreted as successful notification and session is descheduled. */
+ svm_fifo_unset_event (s->tx_fifo);
+ if (!ct_session_tx (s))
+ sp->flags = TRANSPORT_SND_F_DESCHED;
+
+ /* The scheduler uses packet count as a means of upper bounding the amount
+ * of work done per dispatch. So make it look like we have sent something */
+ return 1;
+}
+
+static int
+ct_app_rx_evt (transport_connection_t * tc)
+{
+ ct_connection_t *ct = (ct_connection_t *) tc, *peer_ct;
+ session_t *ps;
+
+ peer_ct = ct_connection_get (ct->peer_index, tc->thread_index);
+ if (!peer_ct)
+ return -1;
+ ps = session_get (peer_ct->c_s_index, peer_ct->c_thread_index);
+ return session_dequeue_notify (ps);
+}
+
+static u8 *
format_ct_listener (u8 * s, va_list * args)
{
u32 tc_index = va_arg (*args, u32);
+ u32 __clib_unused thread_index = va_arg (*args, u32);
u32 __clib_unused verbose = va_arg (*args, u32);
- ct_connection_t *ct = ct_connection_get (tc_index);
- s = format (s, "%-50U", format_ct_connection_id, ct);
+ ct_connection_t *ct = ct_connection_get (tc_index, 0);
+ s = format (s, "%-" SESSION_CLI_ID_LEN "U", format_ct_connection_id, ct);
+ if (verbose)
+ s = format (s, "%-" SESSION_CLI_STATE_LEN "s", "LISTEN");
+ return s;
+}
+
+static u8 *
+format_ct_connection (u8 * s, va_list * args)
+{
+ ct_connection_t *ct = va_arg (*args, ct_connection_t *);
+ u32 verbose = va_arg (*args, u32);
+
+ if (!ct)
+ return s;
+ s = format (s, "%-" SESSION_CLI_ID_LEN "U", format_ct_connection_id, ct);
if (verbose)
- s = format (s, "%-15s", "LISTEN");
+ {
+ s = format (s, "%-" SESSION_CLI_STATE_LEN "s", "ESTABLISHED");
+ if (verbose > 1)
+ {
+ s = format (s, "\n");
+ }
+ }
return s;
}
+static u8 *
+format_ct_session (u8 * s, va_list * args)
+{
+ u32 ct_index = va_arg (*args, u32);
+ u32 thread_index = va_arg (*args, u32);
+ u32 verbose = va_arg (*args, u32);
+ ct_connection_t *ct;
+
+ ct = ct_connection_get (ct_index, thread_index);
+ if (!ct)
+ {
+ s = format (s, "empty\n");
+ return s;
+ }
+
+ s = format (s, "%U", format_ct_connection, ct, verbose);
+ return s;
+}
+
+clib_error_t *
+ct_enable_disable (vlib_main_t * vm, u8 is_en)
+{
+ ct_main.n_workers = vlib_num_workers ();
+ vec_validate (ct_main.connections, ct_main.n_workers);
+ return 0;
+}
+
/* *INDENT-OFF* */
-const static transport_proto_vft_t cut_thru_proto = {
+static const transport_proto_vft_t cut_thru_proto = {
+ .enable = ct_enable_disable,
.start_listen = ct_start_listen,
.stop_listen = ct_stop_listen,
.get_listener = ct_listener_get,
- .tx_type = TRANSPORT_TX_INTERNAL,
- .service_type = TRANSPORT_SERVICE_APP,
+ .connect = ct_session_connect,
+ .close = ct_session_close,
+ .get_connection = ct_session_get,
+ .custom_tx = ct_custom_tx,
+ .app_rx_evt = ct_app_rx_evt,
.format_listener = format_ct_listener,
+ .format_connection = format_ct_session,
+ .transport_options = {
+ .name = "ct",
+ .short_name = "C",
+ .tx_type = TRANSPORT_TX_INTERNAL,
+ .service_type = TRANSPORT_SERVICE_APP,
+ },
};
/* *INDENT-ON* */
+int
+ct_session_tx (session_t * s)
+{
+ ct_connection_t *ct, *peer_ct;
+ session_t *peer_s;
+
+ ct = (ct_connection_t *) session_get_transport (s);
+ peer_ct = ct_connection_get (ct->peer_index, ct->c_thread_index);
+ if (!peer_ct)
+ return 0;
+ peer_s = session_get (peer_ct->c_s_index, peer_ct->c_thread_index);
+ if (peer_s->session_state >= SESSION_STATE_TRANSPORT_CLOSING)
+ return 0;
+ return session_enqueue_notify (peer_s);
+}
+
static clib_error_t *
ct_transport_init (vlib_main_t * vm)
{
transport_register_protocol (TRANSPORT_PROTO_NONE, &cut_thru_proto,
FIB_PROTOCOL_IP4, ~0);
+ transport_register_protocol (TRANSPORT_PROTO_NONE, &cut_thru_proto,
+ FIB_PROTOCOL_IP6, ~0);
return 0;
}
Code Review / vpp.git / blobdiff