/* * echo_client.c - vpp built-in echo client code * * Copyright (c) 2017-2019 by 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 #include #include #include echo_client_main_t echo_client_main; #define ECHO_CLIENT_DBG (0) #define DBG(_fmt, _args...) \ if (ECHO_CLIENT_DBG) \ clib_warning (_fmt, ##_args) static void signal_evt_to_cli_i (int *code) { echo_client_main_t *ecm = &echo_client_main; ASSERT (vlib_get_thread_index () == 0); vlib_process_signal_event (ecm->vlib_main, ecm->cli_node_index, *code, 0); } static void signal_evt_to_cli (int code) { if (vlib_get_thread_index () != 0) vl_api_rpc_call_main_thread (signal_evt_to_cli_i, (u8 *) & code, sizeof (code)); else signal_evt_to_cli_i (&code); } static void send_data_chunk (echo_client_main_t * ecm, eclient_session_t * s) { u8 *test_data = ecm->connect_test_data; int test_buf_len, test_buf_offset, rv; u32 bytes_this_chunk; test_buf_len = vec_len (test_data); ASSERT (test_buf_len > 0); test_buf_offset = s->bytes_sent % test_buf_len; bytes_this_chunk = clib_min (test_buf_len - test_buf_offset, s->bytes_to_send); if (!ecm->is_dgram) { if (ecm->no_copy) { svm_fifo_t *f = s->data.tx_fifo; rv = clib_min (svm_fifo_max_enqueue_prod (f), bytes_this_chunk); svm_fifo_enqueue_nocopy (f, rv); session_send_io_evt_to_thread_custom ( &f->shr->master_session_index, s->thread_index, SESSION_IO_EVT_TX); } else rv = app_send_stream (&s->data, test_data + test_buf_offset, bytes_this_chunk, 0); } else { svm_fifo_t *f = s->data.tx_fifo; u32 max_enqueue = svm_fifo_max_enqueue_prod (f); if (max_enqueue < sizeof (session_dgram_hdr_t)) return; max_enqueue -= sizeof (session_dgram_hdr_t); if (ecm->no_copy) { session_dgram_hdr_t hdr; app_session_transport_t *at = &s->data.transport; rv = clib_min (max_enqueue, bytes_this_chunk); hdr.data_length = rv; hdr.data_offset = 0; clib_memcpy_fast (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t)); hdr.is_ip4 = at->is_ip4; hdr.rmt_port = at->rmt_port; clib_memcpy_fast (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t)); hdr.lcl_port = at->lcl_port; svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr); svm_fifo_enqueue_nocopy (f, rv); session_send_io_evt_to_thread_custom ( &f->shr->master_session_index, s->thread_index, SESSION_IO_EVT_TX); } else { bytes_this_chunk = clib_min (bytes_this_chunk, max_enqueue); rv = app_send_dgram (&s->data, test_data + test_buf_offset, bytes_this_chunk, 0); } } /* If we managed to enqueue data... */ if (rv > 0) { /* Account for it... */ s->bytes_to_send -= rv; s->bytes_sent += rv; if (ECHO_CLIENT_DBG) { /* *INDENT-OFF* */ ELOG_TYPE_DECLARE (e) = { .format = "tx-enq: xfer %d bytes, sent %u remain %u", .format_args = "i4i4i4", }; /* *INDENT-ON* */ struct { u32 data[3]; } *ed; ed = ELOG_DATA (&vlib_global_main.elog_main, e); ed->data[0] = rv; ed->data[1] = s->bytes_sent; ed->data[2] = s->bytes_to_send; } } } static void receive_data_chunk (echo_client_main_t * ecm, eclient_session_t * s) { svm_fifo_t *rx_fifo = s->data.rx_fifo; u32 thread_index = vlib_get_thread_index (); int n_read, i; if (ecm->test_bytes) { if (!ecm->is_dgram) n_read = app_recv_stream (&s->data, ecm->rx_buf[thread_index], vec_len (ecm->rx_buf[thread_index])); else n_read = app_recv_dgram (&s->data, ecm->rx_buf[thread_index], vec_len (ecm->rx_buf[thread_index])); } else { n_read = svm_fifo_max_dequeue_cons (rx_fifo); svm_fifo_dequeue_drop (rx_fifo, n_read); } if (n_read > 0) { if (ECHO_CLIENT_DBG) { /* *INDENT-OFF* */ ELOG_TYPE_DECLARE (e) = { .format = "rx-deq: %d bytes", .format_args = "i4", }; /* *INDENT-ON* */ struct { u32 data[1]; } *ed; ed = ELOG_DATA (&vlib_global_main.elog_main, e); ed->data[0] = n_read; } if (ecm->test_bytes) { for (i = 0; i < n_read; i++) { if (ecm->rx_buf[thread_index][i] != ((s->bytes_received + i) & 0xff)) { clib_warning ("read %d error at byte %lld, 0x%x not 0x%x", n_read, s->bytes_received + i, ecm->rx_buf[thread_index][i], ((s->bytes_received + i) & 0xff)); ecm->test_failed = 1; } } } ASSERT (n_read <= s->bytes_to_receive); s->bytes_to_receive -= n_read; s->bytes_received += n_read; } } static uword echo_client_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { echo_client_main_t *ecm = &echo_client_main; int my_thread_index = vlib_get_thread_index (); eclient_session_t *sp; int i; int delete_session; u32 *connection_indices; u32 *connections_this_batch; u32 nconnections_this_batch; connection_indices = ecm->connection_index_by_thread[my_thread_index]; connections_this_batch = ecm->connections_this_batch_by_thread[my_thread_index]; if ((ecm->run_test != ECHO_CLIENTS_RUNNING) || ((vec_len (connection_indices) == 0) && vec_len (connections_this_batch) == 0)) return 0; /* Grab another pile of connections */ if (PREDICT_FALSE (vec_len (connections_this_batch) == 0)) { nconnections_this_batch = clib_min (ecm->connections_per_batch, vec_len (connection_indices)); ASSERT (nconnections_this_batch > 0); vec_validate (connections_this_batch, nconnections_this_batch - 1); clib_memcpy_fast (connections_this_batch, connection_indices + vec_len (connection_indices) - nconnections_this_batch, nconnections_this_batch * sizeof (u32)); _vec_len (connection_indices) -= nconnections_this_batch; } if (PREDICT_FALSE (ecm->prev_conns != ecm->connections_per_batch && ecm->prev_conns == vec_len (connections_this_batch))) { ecm->repeats++; ecm->prev_conns = vec_len (connections_this_batch); if (ecm->repeats == 500000) { clib_warning ("stuck clients"); } } else { ecm->prev_conns = vec_len (connections_this_batch); ecm->repeats = 0; } for (i = 0; i < vec_len (connections_this_batch); i++) { delete_session = 1; sp = pool_elt_at_index (ecm->sessions, connections_this_batch[i]); if (sp->bytes_to_send > 0) { send_data_chunk (ecm, sp); delete_session = 0; } if (sp->bytes_to_receive > 0) { delete_session = 0; } if (PREDICT_FALSE (delete_session == 1)) { session_t *s; clib_atomic_fetch_add (&ecm->tx_total, sp->bytes_sent); clib_atomic_fetch_add (&ecm->rx_total, sp->bytes_received); s = session_get_from_handle_if_valid (sp->vpp_session_handle); if (s) { vnet_disconnect_args_t _a, *a = &_a; a->handle = session_handle (s); a->app_index = ecm->app_index; vnet_disconnect_session (a); vec_delete (connections_this_batch, 1, i); i--; clib_atomic_fetch_add (&ecm->ready_connections, -1); } else { clib_warning ("session AWOL?"); vec_delete (connections_this_batch, 1, i); } /* Kick the debug CLI process */ if (ecm->ready_connections == 0) { signal_evt_to_cli (2); } } } ecm->connection_index_by_thread[my_thread_index] = connection_indices; ecm->connections_this_batch_by_thread[my_thread_index] = connections_this_batch; return 0; } VLIB_REGISTER_NODE (echo_clients_node) = { .function = echo_client_node_fn, .name = "echo-clients", .type = VLIB_NODE_TYPE_INPUT, .state = VLIB_NODE_STATE_DISABLED, }; static void ec_reset_runtime_config (echo_client_main_t *ecm) { ecm->n_clients = 1; ecm->quic_streams = 1; ecm->bytes_to_send = 8192; ecm->no_return = 0; ecm->fifo_size = 64 << 10; ecm->connections_per_batch = 1000; ecm->private_segment_count = 0; ecm->private_segment_size = 256 << 20; ecm->no_output = 0; ecm->test_bytes = 0; ecm->test_failed = 0; ecm->tls_engine = CRYPTO_ENGINE_OPENSSL; ecm->no_copy = 0; ecm->run_test = ECHO_CLIENTS_STARTING; ecm->ready_connections = 0; ecm->rx_total = 0; ecm->tx_total = 0; ecm->barrier_acq_needed = 0; ecm->prealloc_sessions = 0; ecm->prealloc_fifos = 0; ecm->appns_id = 0; ecm->appns_secret = 0; ecm->attach_flags = 0; ecm->syn_timeout = 20.0; ecm->test_timeout = 20.0; vec_free (ecm->connect_uri); } static int echo_clients_init (vlib_main_t * vm) { echo_client_main_t *ecm = &echo_client_main; vlib_thread_main_t *vtm = vlib_get_thread_main (); u32 num_threads; int i; ec_reset_runtime_config (ecm); /* Store cli process node index for signaling */ ecm->cli_node_index = vlib_get_current_process (vm)->node_runtime.node_index; ecm->vlib_main = vm; if (vlib_num_workers ()) { /* The request came over the binary api and the inband cli handler * is not mp_safe. Drop the barrier to make sure the workers are not * blocked. */ if (vlib_thread_is_main_w_barrier ()) { ecm->barrier_acq_needed = 1; vlib_worker_thread_barrier_release (vm); } /* * There's a good chance that both the client and the server echo * apps will be enabled so make sure the session queue node polls on * the main thread as connections will probably be established on it. */ vlib_node_set_state (vm, session_queue_node.index, VLIB_NODE_STATE_POLLING); clib_spinlock_init (&ecm->sessions_lock); } /* App init done only once */ if (ecm->app_is_init) return 0; num_threads = 1 /* main thread */ + vtm->n_threads; /* Init test data. Big buffer */ vec_validate (ecm->connect_test_data, 4 * 1024 * 1024 - 1); for (i = 0; i < vec_len (ecm->connect_test_data); i++) ecm->connect_test_data[i] = i & 0xff; vec_validate (ecm->rx_buf, num_threads - 1); for (i = 0; i < num_threads; i++) vec_validate (ecm->rx_buf[i], vec_len (ecm->connect_test_data) - 1); ecm->app_is_init = 1; vec_validate (ecm->connection_index_by_thread, vtm->n_vlib_mains); vec_validate (ecm->connections_this_batch_by_thread, vtm->n_vlib_mains); vec_validate (ecm->quic_session_index_by_thread, vtm->n_vlib_mains); vec_validate (ecm->vpp_event_queue, vtm->n_vlib_mains); vlib_worker_thread_barrier_sync (vm); vnet_session_enable_disable (vm, 1 /* turn on session and transports */); vlib_worker_thread_barrier_release (vm); /* Turn on the builtin client input nodes */ for (i = 0; i < vtm->n_vlib_mains; i++) vlib_node_set_state (vlib_get_main_by_index (i), echo_clients_node.index, VLIB_NODE_STATE_POLLING); return 0; } static void echo_clients_cleanup (echo_client_main_t *ecm) { int i; for (i = 0; i < vec_len (ecm->connection_index_by_thread); i++) { vec_reset_length (ecm->connection_index_by_thread[i]); vec_reset_length (ecm->connections_this_batch_by_thread[i]); vec_reset_length (ecm->quic_session_index_by_thread[i]); } pool_free (ecm->sessions); vec_free (ecm->connect_uri); vec_free (ecm->appns_id); clib_spinlock_free (&ecm->sessions_lock); if (ecm->barrier_acq_needed) vlib_worker_thread_barrier_sync (ecm->vlib_main); } static int quic_echo_clients_qsession_connected_callback (u32 app_index, u32 api_context, session_t * s, session_error_t err) { echo_client_main_t *ecm = &echo_client_main; vnet_connect_args_t *a = 0; int rv; u8 thread_index = vlib_get_thread_index (); session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL; u32 stream_n; session_handle_t handle; DBG ("QUIC Connection handle %d", session_handle (s)); vec_validate (a, 1); a->uri = (char *) ecm->connect_uri; if (parse_uri (a->uri, &sep)) return -1; sep.parent_handle = handle = session_handle (s); for (stream_n = 0; stream_n < ecm->quic_streams; stream_n++) { clib_memset (a, 0, sizeof (*a)); a->app_index = ecm->app_index; a->api_context = -1 - api_context; clib_memcpy (&a->sep_ext, &sep, sizeof (sep)); DBG ("QUIC opening stream %d", stream_n); if ((rv = vnet_connect (a))) { clib_error ("Stream session %d opening failed: %d", stream_n, rv); return -1; } DBG ("QUIC stream %d connected", stream_n); } /* * 's' is no longer valid, its underlying pool could have been moved in * vnet_connect() */ vec_add1 (ecm->quic_session_index_by_thread[thread_index], handle); vec_free (a); return 0; } static int quic_echo_clients_session_connected_callback (u32 app_index, u32 api_context, session_t * s, session_error_t err) { echo_client_main_t *ecm = &echo_client_main; eclient_session_t *session; u32 session_index; u8 thread_index; if (PREDICT_FALSE (ecm->run_test != ECHO_CLIENTS_STARTING)) return -1; if (err) { clib_warning ("connection %d failed!", api_context); ecm->run_test = ECHO_CLIENTS_EXITING; signal_evt_to_cli (-1); return 0; } if (s->listener_handle == SESSION_INVALID_HANDLE) return quic_echo_clients_qsession_connected_callback (app_index, api_context, s, err); DBG ("STREAM Connection callback %d", api_context); thread_index = s->thread_index; ASSERT (thread_index == vlib_get_thread_index () || session_transport_service_type (s) == TRANSPORT_SERVICE_CL); if (!ecm->vpp_event_queue[thread_index]) ecm->vpp_event_queue[thread_index] = session_main_get_vpp_event_queue (thread_index); /* * Setup session */ clib_spinlock_lock_if_init (&ecm->sessions_lock); pool_get (ecm->sessions, session); clib_spinlock_unlock_if_init (&ecm->sessions_lock); clib_memset (session, 0, sizeof (*session)); session_index = session - ecm->sessions; session->bytes_to_send = ecm->bytes_to_send; session->bytes_to_receive = ecm->no_return ? 0ULL : ecm->bytes_to_send; session->data.rx_fifo = s->rx_fifo; session->data.rx_fifo->shr->client_session_index = session_index; session->data.tx_fifo = s->tx_fifo; session->data.tx_fifo->shr->client_session_index = session_index; session->data.vpp_evt_q = ecm->vpp_event_queue[thread_index]; session->vpp_session_handle = session_handle (s); if (ecm->is_dgram) { transport_connection_t *tc; tc = session_get_transport (s); clib_memcpy_fast (&session->data.transport, tc, sizeof (session->data.transport)); session->data.is_dgram = 1; } vec_add1 (ecm->connection_index_by_thread[thread_index], session_index); clib_atomic_fetch_add (&ecm->ready_connections, 1); if (ecm->ready_connections == ecm->expected_connections) { ecm->run_test = ECHO_CLIENTS_RUNNING; /* Signal the CLI process that the action is starting... */ signal_evt_to_cli (1); } return 0; } static int echo_clients_session_connected_callback (u32 app_index, u32 api_context, session_t * s, session_error_t err) { echo_client_main_t *ecm = &echo_client_main; eclient_session_t *session; u32 session_index; u8 thread_index; if (PREDICT_FALSE (ecm->run_test != ECHO_CLIENTS_STARTING)) return -1; if (err) { clib_warning ("connection %d failed!", api_context); ecm->run_test = ECHO_CLIENTS_EXITING; signal_evt_to_cli (-1); return 0; } thread_index = s->thread_index; ASSERT (thread_index == vlib_get_thread_index () || session_transport_service_type (s) == TRANSPORT_SERVICE_CL); if (!ecm->vpp_event_queue[thread_index]) ecm->vpp_event_queue[thread_index] = session_main_get_vpp_event_queue (thread_index); /* * Setup session */ clib_spinlock_lock_if_init (&ecm->sessions_lock); pool_get (ecm->sessions, session); clib_spinlock_unlock_if_init (&ecm->sessions_lock); clib_memset (session, 0, sizeof (*session)); session_index = session - ecm->sessions; session->bytes_to_send = ecm->bytes_to_send; session->bytes_to_receive = ecm->no_return ? 0ULL : ecm->bytes_to_send; session->data.rx_fifo = s->rx_fifo; session->data.rx_fifo->shr->client_session_index = session_index; session->data.tx_fifo = s->tx_fifo; session->data.tx_fifo->shr->client_session_index = session_index; session->data.vpp_evt_q = ecm->vpp_event_queue[thread_index]; session->vpp_session_handle = session_handle (s); if (ecm->is_dgram) { transport_connection_t *tc; tc = session_get_transport (s); clib_memcpy_fast (&session->data.transport, tc, sizeof (session->data.transport)); session->data.is_dgram = 1; } vec_add1 (ecm->connection_index_by_thread[thread_index], session_index); clib_atomic_fetch_add (&ecm->ready_connections, 1); if (ecm->ready_connections == ecm->expected_connections) { ecm->run_test = ECHO_CLIENTS_RUNNING; /* Signal the CLI process that the action is starting... */ signal_evt_to_cli (1); } return 0; } static void echo_clients_session_reset_callback (session_t * s) { echo_client_main_t *ecm = &echo_client_main; vnet_disconnect_args_t _a = { 0 }, *a = &_a; if (s->session_state == SESSION_STATE_READY) clib_warning ("Reset active connection %U", format_session, s, 2); a->handle = session_handle (s); a->app_index = ecm->app_index; vnet_disconnect_session (a); return; } static int echo_clients_session_create_callback (session_t * s) { return 0; } static void echo_clients_session_disconnect_callback (session_t * s) { echo_client_main_t *ecm = &echo_client_main; vnet_disconnect_args_t _a = { 0 }, *a = &_a; a->handle = session_handle (s); a->app_index = ecm->app_index; vnet_disconnect_session (a); return; } void echo_clients_session_disconnect (session_t * s) { echo_client_main_t *ecm = &echo_client_main; vnet_disconnect_args_t _a = { 0 }, *a = &_a; a->handle = session_handle (s); a->app_index = ecm->app_index; vnet_disconnect_session (a); } static int echo_clients_rx_callback (session_t * s) { echo_client_main_t *ecm = &echo_client_main; eclient_session_t *sp; if (PREDICT_FALSE (ecm->run_test != ECHO_CLIENTS_RUNNING)) { echo_clients_session_disconnect (s); return -1; } sp = pool_elt_at_index (ecm->sessions, s->rx_fifo->shr->client_session_index); receive_data_chunk (ecm, sp); if (svm_fifo_max_dequeue_cons (s->rx_fifo)) { if (svm_fifo_set_event (s->rx_fifo)) session_send_io_evt_to_thread (s->rx_fifo, SESSION_IO_EVT_BUILTIN_RX); } return 0; } int echo_client_add_segment_callback (u32 client_index, u64 segment_handle) { /* New heaps may be added */ return 0; } static session_cb_vft_t echo_clients = { .session_reset_callback = echo_clients_session_reset_callback, .session_connected_callback = echo_clients_session_connected_callback, .session_accept_callback = echo_clients_session_create_callback, .session_disconnect_callback = echo_clients_session_disconnect_callback, .builtin_app_rx_callback = echo_clients_rx_callback, .add_segment_callback = echo_client_add_segment_callback }; static clib_error_t * echo_clients_attach () { vnet_app_add_cert_key_pair_args_t _ck_pair, *ck_pair = &_ck_pair; echo_client_main_t *ecm = &echo_client_main; vnet_app_attach_args_t _a, *a = &_a; u32 prealloc_fifos; u64 options[18]; int rv; clib_memset (a, 0, sizeof (*a)); clib_memset (options, 0, sizeof (options)); a->api_client_index = ~0; a->name = format (0, "echo_client"); if (ecm->transport_proto == TRANSPORT_PROTO_QUIC) echo_clients.session_connected_callback = quic_echo_clients_session_connected_callback; a->session_cb_vft = &echo_clients; prealloc_fifos = ecm->prealloc_fifos ? ecm->expected_connections : 1; options[APP_OPTIONS_ACCEPT_COOKIE] = 0x12345678; options[APP_OPTIONS_SEGMENT_SIZE] = ecm->private_segment_size; options[APP_OPTIONS_ADD_SEGMENT_SIZE] = ecm->private_segment_size; options[APP_OPTIONS_RX_FIFO_SIZE] = ecm->fifo_size; options[APP_OPTIONS_TX_FIFO_SIZE] = ecm->fifo_size; options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = ecm->private_segment_count; options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = prealloc_fifos; options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; options[APP_OPTIONS_TLS_ENGINE] = ecm->tls_engine; options[APP_OPTIONS_PCT_FIRST_ALLOC] = 100; options[APP_OPTIONS_FLAGS] |= ecm->attach_flags; if (ecm->appns_id) { options[APP_OPTIONS_NAMESPACE_SECRET] = ecm->appns_secret; a->namespace_id = ecm->appns_id; } a->options = options; if ((rv = vnet_application_attach (a))) return clib_error_return (0, "attach returned %d", rv); ecm->app_index = a->app_index; vec_free (a->name); clib_memset (ck_pair, 0, sizeof (*ck_pair)); ck_pair->cert = (u8 *) test_srv_crt_rsa; ck_pair->key = (u8 *) test_srv_key_rsa; ck_pair->cert_len = test_srv_crt_rsa_len; ck_pair->key_len = test_srv_key_rsa_len; vnet_app_add_cert_key_pair (ck_pair); ecm->ckpair_index = ck_pair->index; ecm->test_client_attached = 1; return 0; } static int echo_clients_detach () { echo_client_main_t *ecm = &echo_client_main; vnet_app_detach_args_t _da, *da = &_da; int rv; if (!ecm->test_client_attached) return 0; da->app_index = ecm->app_index; da->api_client_index = ~0; rv = vnet_application_detach (da); ecm->test_client_attached = 0; ecm->app_index = ~0; vnet_app_del_cert_key_pair (ecm->ckpair_index); return rv; } static void * echo_client_thread_fn (void *arg) { return 0; } /** Start a transmit thread */ int echo_clients_start_tx_pthread (echo_client_main_t * ecm) { if (ecm->client_thread_handle == 0) { int rv = pthread_create (&ecm->client_thread_handle, NULL /*attr */ , echo_client_thread_fn, 0); if (rv) { ecm->client_thread_handle = 0; return -1; } } return 0; } static int ec_transport_needs_crypto (transport_proto_t proto) { return proto == TRANSPORT_PROTO_TLS || proto == TRANSPORT_PROTO_DTLS || proto == TRANSPORT_PROTO_QUIC; } clib_error_t * echo_clients_connect (vlib_main_t *vm) { echo_client_main_t *ecm = &echo_client_main; vnet_connect_args_t _a = {}, *a = &_a; int i, rv, needs_crypto; u32 n_clients; n_clients = ecm->n_clients; needs_crypto = ec_transport_needs_crypto (ecm->transport_proto); clib_memcpy (&a->sep_ext, &ecm->connect_sep, sizeof (ecm->connect_sep)); a->app_index = ecm->app_index; for (i = 0; i < n_clients; i++) { a->api_context = i; if (needs_crypto) { session_endpoint_alloc_ext_cfg (&a->sep_ext, TRANSPORT_ENDPT_EXT_CFG_CRYPTO); a->sep_ext.ext_cfg->crypto.ckpair_index = ecm->ckpair_index; } vlib_worker_thread_barrier_sync (vm); rv = vnet_connect (a); if (needs_crypto) clib_mem_free (a->sep_ext.ext_cfg); if (rv) { vlib_worker_thread_barrier_release (vm); return clib_error_return (0, "connect returned: %d", rv); } vlib_worker_thread_barrier_release (vm); /* Crude pacing for call setups */ if ((i % 16) == 0) vlib_process_suspend (vm, 100e-6); ASSERT (i + 1 >= ecm->ready_connections); while (i + 1 - ecm->ready_connections > 128) vlib_process_suspend (vm, 1e-3); } return 0; } #define ec_cli(_fmt, _args...) \ if (!ecm->no_output) \ vlib_cli_output (vm, _fmt, ##_args) static clib_error_t * echo_clients_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd) { unformat_input_t _line_input, *line_input = &_line_input; echo_client_main_t *ecm = &echo_client_main; u64 tmp, total_bytes; f64 delta; char *default_uri = "tcp://6.0.1.1/1234"; uword *event_data = 0, event_type; char *transfer_type; clib_error_t *error = 0; int rv, had_config = 1; if (ecm->test_client_attached) return clib_error_return (0, "failed: already running!"); if (echo_clients_init (vm)) { error = clib_error_return (0, "failed init"); goto cleanup; } if (!unformat_user (input, unformat_line_input, line_input)) { had_config = 0; goto parse_config; } while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { if (unformat (line_input, "uri %s", &ecm->connect_uri)) ; else if (unformat (line_input, "nclients %d", &ecm->n_clients)) ; else if (unformat (line_input, "quic-streams %d", &ecm->quic_streams)) ; else if (unformat (line_input, "mbytes %lld", &tmp)) ecm->bytes_to_send = tmp << 20; else if (unformat (line_input, "gbytes %lld", &tmp)) ecm->bytes_to_send = tmp << 30; else if (unformat (line_input, "bytes %U", unformat_memory_size, &ecm->bytes_to_send)) ; else if (unformat (line_input, "test-timeout %f", &ecm->test_timeout)) ; else if (unformat (line_input, "syn-timeout %f", &ecm->syn_timeout)) ; else if (unformat (line_input, "no-return")) ecm->no_return = 1; else if (unformat (line_input, "fifo-size %d", &ecm->fifo_size)) ecm->fifo_size <<= 10; else if (unformat (line_input, "private-segment-count %d", &ecm->private_segment_count)) ; else if (unformat (line_input, "private-segment-size %U", unformat_memory_size, &ecm->private_segment_size)) ; else if (unformat (line_input, "preallocate-fifos")) ecm->prealloc_fifos = 1; else if (unformat (line_input, "preallocate-sessions")) ecm->prealloc_sessions = 1; else if (unformat (line_input, "client-batch %d", &ecm->connections_per_batch)) ; else if (unformat (line_input, "appns %_%v%_", &ecm->appns_id)) ; else if (unformat (line_input, "all-scope")) ecm->attach_flags |= (APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE | APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE); else if (unformat (line_input, "local-scope")) ecm->attach_flags = APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE; else if (unformat (line_input, "global-scope")) ecm->attach_flags = APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE; else if (unformat (line_input, "secret %lu", &ecm->appns_secret)) ; else if (unformat (line_input, "no-output")) ecm->no_output = 1; else if (unformat (line_input, "test-bytes")) ecm->test_bytes = 1; else if (unformat (line_input, "tls-engine %d", &ecm->tls_engine)) ; else { error = clib_error_return (0, "failed: unknown input `%U'", format_unformat_error, line_input); goto cleanup; } } parse_config: ecm->expected_connections = ecm->n_clients * ecm->quic_streams; if (!ecm->connect_uri) { clib_warning ("No uri provided. Using default: %s", default_uri); ecm->connect_uri = format (0, "%s%c", default_uri, 0); } if ((rv = parse_uri ((char *) ecm->connect_uri, &ecm->connect_sep))) { error = clib_error_return (0, "Uri parse error: %d", rv); goto cleanup; } ecm->transport_proto = ecm->connect_sep.transport_proto; ecm->is_dgram = (ecm->transport_proto == TRANSPORT_PROTO_UDP); if (ecm->prealloc_sessions) pool_init_fixed (ecm->sessions, 1.1 * ecm->n_clients); if ((error = echo_clients_attach ())) { clib_error_report (error); goto cleanup; } /* * Start. Fire off connect requests */ ecm->syn_start_time = vlib_time_now (vm); if ((error = echo_clients_connect (vm))) { goto cleanup; } /* * Park until the sessions come up, or syn_timeout seconds pass */ vlib_process_wait_for_event_or_clock (vm, ecm->syn_timeout); event_type = vlib_process_get_events (vm, &event_data); switch (event_type) { case ~0: ec_cli ("Timeout with only %d sessions active...", ecm->ready_connections); error = clib_error_return (0, "failed: syn timeout with %d sessions", ecm->ready_connections); goto cleanup; case 1: delta = vlib_time_now (vm) - ecm->syn_start_time; if (delta != 0.0) ec_cli ("%d three-way handshakes in %.2f seconds %.2f/s", ecm->n_clients, delta, ((f64) ecm->n_clients) / delta); break; default: ec_cli ("unexpected event(1): %d", event_type); error = clib_error_return (0, "failed: unexpected event(1): %d", event_type); goto cleanup; } /* * Wait for the sessions to finish or test_timeout seconds pass */ ecm->test_start_time = vlib_time_now (ecm->vlib_main); ec_cli ("Test started at %.6f", ecm->test_start_time); vlib_process_wait_for_event_or_clock (vm, ecm->test_timeout); event_type = vlib_process_get_events (vm, &event_data); switch (event_type) { case ~0: ec_cli ("Timeout with %d sessions still active...", ecm->ready_connections); error = clib_error_return (0, "failed: timeout with %d sessions", ecm->ready_connections); goto cleanup; case 2: ecm->test_end_time = vlib_time_now (vm); ec_cli ("Test finished at %.6f", ecm->test_end_time); break; default: ec_cli ("unexpected event(2): %d", event_type); error = clib_error_return (0, "failed: unexpected event(2): %d", event_type); goto cleanup; } /* * Done. Compute stats */ delta = ecm->test_end_time - ecm->test_start_time; if (delta == 0.0) { ec_cli ("zero delta-t?"); error = clib_error_return (0, "failed: zero delta-t"); goto cleanup; } total_bytes = (ecm->no_return ? ecm->tx_total : ecm->rx_total); transfer_type = ecm->no_return ? "half-duplex" : "full-duplex"; ec_cli ("%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds", total_bytes, total_bytes / (1ULL << 20), total_bytes / (1ULL << 30), delta); ec_cli ("%.2f bytes/second %s", ((f64) total_bytes) / (delta), transfer_type); ec_cli ("%.4f gbit/second %s", (((f64) total_bytes * 8.0) / delta / 1e9), transfer_type); if (ecm->test_bytes && ecm->test_failed) error = clib_error_return (0, "failed: test bytes"); cleanup: /* * Cleanup */ ecm->run_test = ECHO_CLIENTS_EXITING; vlib_process_wait_for_event_or_clock (vm, 10e-3); /* Detach the application, so we can use different fifo sizes next time */ if (echo_clients_detach ()) { error = clib_error_return (0, "failed: app detach"); ec_cli ("WARNING: app detach failed..."); } echo_clients_cleanup (ecm); if (had_config) unformat_free (line_input); if (error) ec_cli ("test failed"); return error; } VLIB_CLI_COMMAND (echo_clients_command, static) = { .path = "test echo clients", .short_help = "test echo clients [nclients %d][[m|g]bytes ]" "[test-timeout