/* * 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 static ec_main_t ec_main; #define ec_err(_fmt, _args...) clib_warning (_fmt, ##_args); #define ec_dbg(_fmt, _args...) \ do \ { \ if (ec_main.cfg.verbose) \ ec_err (_fmt, ##_args); \ } \ while (0) #define ec_cli(_fmt, _args...) vlib_cli_output (vm, _fmt, ##_args) static void signal_evt_to_cli_i (void *codep) { ec_main_t *ecm = &ec_main; int code; ASSERT (vlib_get_thread_index () == 0); code = pointer_to_uword (codep); 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) session_send_rpc_evt_to_thread_force ( 0, signal_evt_to_cli_i, uword_to_pointer ((uword) code, void *)); else signal_evt_to_cli_i (uword_to_pointer ((uword) code, void *)); } static inline ec_worker_t * ec_worker_get (u32 thread_index) { return vec_elt_at_index (ec_main.wrk, thread_index); } static inline ec_session_t * ec_session_alloc (ec_worker_t *wrk) { ec_session_t *ecs; pool_get_zero (wrk->sessions, ecs); ecs->data.session_index = ecs - wrk->sessions; ecs->thread_index = wrk->thread_index; return ecs; } static inline ec_session_t * ec_session_get (ec_worker_t *wrk, u32 ec_index) { return pool_elt_at_index (wrk->sessions, ec_index); } static void send_data_chunk (ec_main_t *ecm, ec_session_t *es) { 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 = es->bytes_sent % test_buf_len; bytes_this_chunk = clib_min (test_buf_len - test_buf_offset, es->bytes_to_send); if (!ecm->is_dgram) { if (ecm->no_copy) { svm_fifo_t *f = es->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 ( &es->vpp_session_index, es->thread_index, SESSION_IO_EVT_TX); } else rv = app_send_stream (&es->data, test_data + test_buf_offset, bytes_this_chunk, 0); } else { svm_fifo_t *f = es->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 = &es->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 ( &es->vpp_session_index, es->thread_index, SESSION_IO_EVT_TX); } else { bytes_this_chunk = clib_min (bytes_this_chunk, max_enqueue); bytes_this_chunk = clib_min (bytes_this_chunk, 1460); rv = app_send_dgram (&es->data, test_data + test_buf_offset, bytes_this_chunk, 0); } } /* If we managed to enqueue data... */ if (rv > 0) { /* Account for it... */ es->bytes_to_send -= rv; es->bytes_sent += rv; if (ecm->cfg.verbose) { ELOG_TYPE_DECLARE (e) = { .format = "tx-enq: xfer %d bytes, sent %u remain %u", .format_args = "i4i4i4", }; struct { u32 data[3]; } *ed; ed = ELOG_DATA (&vlib_global_main.elog_main, e); ed->data[0] = rv; ed->data[1] = es->bytes_sent; ed->data[2] = es->bytes_to_send; } } } static void receive_data_chunk (ec_worker_t *wrk, ec_session_t *es) { ec_main_t *ecm = &ec_main; svm_fifo_t *rx_fifo = es->data.rx_fifo; int n_read, i; if (ecm->cfg.test_bytes) { if (!ecm->is_dgram) n_read = app_recv_stream (&es->data, wrk->rx_buf, vec_len (wrk->rx_buf)); else n_read = app_recv_dgram (&es->data, wrk->rx_buf, vec_len (wrk->rx_buf)); } else { n_read = svm_fifo_max_dequeue_cons (rx_fifo); svm_fifo_dequeue_drop (rx_fifo, n_read); } if (n_read > 0) { if (ecm->cfg.verbose) { ELOG_TYPE_DECLARE (e) = { .format = "rx-deq: %d bytes", .format_args = "i4", }; struct { u32 data[1]; } *ed; ed = ELOG_DATA (&vlib_global_main.elog_main, e); ed->data[0] = n_read; } if (ecm->cfg.test_bytes) { for (i = 0; i < n_read; i++) { if (wrk->rx_buf[i] != ((es->bytes_received + i) & 0xff)) { ec_err ("read %d error at byte %lld, 0x%x not 0x%x", n_read, es->bytes_received + i, wrk->rx_buf[i], ((es->bytes_received + i) & 0xff)); ecm->test_failed = 1; } } } ASSERT (n_read <= es->bytes_to_receive); es->bytes_to_receive -= n_read; es->bytes_received += n_read; } } static uword ec_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { u32 *conn_indices, *conns_this_batch, nconns_this_batch; int thread_index = vm->thread_index, i, delete_session; ec_main_t *ecm = &ec_main; ec_worker_t *wrk; ec_session_t *es; session_t *s; if (ecm->run_test != EC_RUNNING) return 0; wrk = ec_worker_get (thread_index); conn_indices = wrk->conn_indices; conns_this_batch = wrk->conns_this_batch; if (((vec_len (conn_indices) == 0) && vec_len (conns_this_batch) == 0)) return 0; /* Grab another pile of connections */ if (PREDICT_FALSE (vec_len (conns_this_batch) == 0)) { nconns_this_batch = clib_min (ecm->connections_per_batch, vec_len (conn_indices)); ASSERT (nconns_this_batch > 0); vec_validate (conns_this_batch, nconns_this_batch - 1); clib_memcpy_fast (conns_this_batch, conn_indices + vec_len (conn_indices) - nconns_this_batch, nconns_this_batch * sizeof (u32)); vec_dec_len (conn_indices, nconns_this_batch); } /* * Track progress */ if (PREDICT_FALSE (ecm->prev_conns != ecm->connections_per_batch && ecm->prev_conns == vec_len (conns_this_batch))) { ecm->repeats++; ecm->prev_conns = vec_len (conns_this_batch); if (ecm->repeats == 500000) { ec_err ("stuck clients"); } } else { ecm->prev_conns = vec_len (conns_this_batch); ecm->repeats = 0; } /* * Handle connections in this batch */ for (i = 0; i < vec_len (conns_this_batch); i++) { es = ec_session_get (wrk, conns_this_batch[i]); delete_session = 1; if (es->bytes_to_send > 0) { send_data_chunk (ecm, es); delete_session = 0; } if (es->bytes_to_receive > 0) { delete_session = 0; } if (PREDICT_FALSE (delete_session == 1)) { clib_atomic_fetch_add (&ecm->tx_total, es->bytes_sent); clib_atomic_fetch_add (&ecm->rx_total, es->bytes_received); s = session_get_from_handle_if_valid (es->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 (conns_this_batch, 1, i); i--; clib_atomic_fetch_add (&ecm->ready_connections, -1); } else { ec_err ("session AWOL?"); vec_delete (conns_this_batch, 1, i); } /* Kick the debug CLI process */ if (ecm->ready_connections == 0) { signal_evt_to_cli (EC_CLI_TEST_DONE); } } } wrk->conn_indices = conn_indices; wrk->conns_this_batch = conns_this_batch; return 0; } VLIB_REGISTER_NODE (echo_clients_node) = { .function = ec_node_fn, .name = "echo-clients", .type = VLIB_NODE_TYPE_INPUT, .state = VLIB_NODE_STATE_DISABLED, }; static void ec_reset_runtime_config (ec_main_t *ecm) { hs_test_cfg_init (&ecm->cfg); ecm->n_clients = 1; ecm->quic_streams = 1; ecm->bytes_to_send = 8192; ecm->echo_bytes = 0; ecm->fifo_size = 64 << 10; ecm->connections_per_batch = 1000; ecm->private_segment_count = 0; ecm->private_segment_size = 256 << 20; ecm->test_failed = 0; ecm->tls_engine = CRYPTO_ENGINE_OPENSSL; ecm->no_copy = 0; ecm->run_test = EC_STARTING; ecm->ready_connections = 0; ecm->connect_conn_index = 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 ec_init (vlib_main_t *vm) { ec_main_t *ecm = &ec_main; ec_worker_t *wrk; 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); } /* App init done only once */ if (ecm->app_is_init) return 0; /* 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; num_threads = 1 /* main thread */ + vlib_num_workers (); vec_validate (ecm->wrk, num_threads - 1); vec_foreach (wrk, ecm->wrk) { vec_validate (wrk->rx_buf, vec_len (ecm->connect_test_data) - 1); wrk->thread_index = wrk - ecm->wrk; wrk->vpp_event_queue = session_main_get_vpp_event_queue (wrk->thread_index); } ecm->app_is_init = 1; vlib_worker_thread_barrier_sync (vm); vnet_session_enable_disable (vm, 1 /* turn on session and transports */); /* Turn on the builtin client input nodes */ foreach_vlib_main () vlib_node_set_state (this_vlib_main, echo_clients_node.index, VLIB_NODE_STATE_POLLING); vlib_worker_thread_barrier_release (vm); return 0; } static void ec_prealloc_sessions (ec_main_t *ecm) { u32 sessions_per_wrk, n_wrks; ec_worker_t *wrk; n_wrks = vlib_num_workers () ? vlib_num_workers () : 1; sessions_per_wrk = ecm->n_clients / n_wrks; vec_foreach (wrk, ecm->wrk) pool_init_fixed (wrk->sessions, 1.1 * sessions_per_wrk); } static void ec_worker_cleanup (ec_worker_t *wrk) { pool_free (wrk->sessions); vec_free (wrk->conn_indices); vec_free (wrk->conns_this_batch); } static void ec_cleanup (ec_main_t *ecm) { ec_worker_t *wrk; vec_foreach (wrk, ecm->wrk) ec_worker_cleanup (wrk); vec_free (ecm->connect_uri); vec_free (ecm->appns_id); if (ecm->barrier_acq_needed) vlib_worker_thread_barrier_sync (ecm->vlib_main); } static int quic_ec_qsession_connected_callback (u32 app_index, u32 api_context, session_t *s, session_error_t err) { session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL; ec_main_t *ecm = &ec_main; vnet_connect_args_t _a, *a = &_a; u32 stream_n; int rv; ec_dbg ("QUIC Connection handle %d", session_handle (s)); a->uri = (char *) ecm->connect_uri; if (parse_uri (a->uri, &sep)) return -1; sep.parent_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 = -2 - api_context; clib_memcpy (&a->sep_ext, &sep, sizeof (sep)); ec_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; } ec_dbg ("QUIC stream %d connected", stream_n); } return 0; } static int ec_ctrl_send (hs_test_cmd_t cmd) { ec_main_t *ecm = &ec_main; session_t *s; int rv; ecm->cfg.cmd = cmd; if (ecm->ctrl_session_handle == SESSION_INVALID_HANDLE) { ec_dbg ("ctrl session went away"); return -1; } s = session_get_from_handle_if_valid (ecm->ctrl_session_handle); if (!s) { ec_err ("ctrl session not found"); return -1; } ec_dbg ("sending test paramters to the server.."); if (ecm->cfg.verbose) hs_test_cfg_dump (&ecm->cfg, 1); rv = svm_fifo_enqueue (s->tx_fifo, sizeof (ecm->cfg), (u8 *) &ecm->cfg); ASSERT (rv == sizeof (ecm->cfg)); session_send_io_evt_to_thread (s->tx_fifo, SESSION_IO_EVT_TX); return 0; } static int ec_ctrl_session_connected_callback (session_t *s) { ec_main_t *ecm = &ec_main; s->opaque = HS_CTRL_HANDLE; ecm->ctrl_session_handle = session_handle (s); /* send test parameters to the server */ ec_ctrl_send (HS_TEST_CMD_SYNC); return 0; } static int quic_ec_session_connected_callback (u32 app_index, u32 api_context, session_t *s, session_error_t err) { ec_main_t *ecm = &ec_main; ec_session_t *es; ec_worker_t *wrk; u32 thread_index; if (PREDICT_FALSE (api_context == HS_CTRL_HANDLE)) return ec_ctrl_session_connected_callback (s); if (PREDICT_FALSE (ecm->run_test != EC_STARTING)) return -1; if (err) { ec_err ("connection %d failed!", api_context); ecm->run_test = EC_EXITING; signal_evt_to_cli (EC_CLI_CONNECTS_FAILED); return 0; } if (s->listener_handle == SESSION_INVALID_HANDLE) return quic_ec_qsession_connected_callback (app_index, api_context, s, err); ec_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); wrk = ec_worker_get (thread_index); /* * Setup session */ es = ec_session_alloc (wrk); es->bytes_to_send = ecm->bytes_to_send; es->bytes_to_receive = ecm->echo_bytes ? ecm->bytes_to_send : 0ULL; es->data.rx_fifo = s->rx_fifo; es->data.rx_fifo->shr->client_session_index = es->data.session_index; es->data.tx_fifo = s->tx_fifo; es->data.tx_fifo->shr->client_session_index = es->data.session_index; es->data.vpp_evt_q = wrk->vpp_event_queue; es->vpp_session_handle = session_handle (s); es->vpp_session_index = s->session_index; s->opaque = es->data.session_index; if (ecm->is_dgram) { transport_connection_t *tc; tc = session_get_transport (s); clib_memcpy_fast (&es->data.transport, tc, sizeof (es->data.transport)); es->data.is_dgram = 1; } vec_add1 (wrk->conn_indices, es->data.session_index); clib_atomic_fetch_add (&ecm->ready_connections, 1); if (ecm->ready_connections == ecm->expected_connections) { ecm->run_test = EC_RUNNING; /* Signal the CLI process that the action is starting... */ signal_evt_to_cli (EC_CLI_CONNECTS_DONE); } return 0; } static int ec_session_connected_callback (u32 app_index, u32 api_context, session_t *s, session_error_t err) { ec_main_t *ecm = &ec_main; ec_session_t *es; u32 thread_index; ec_worker_t *wrk; if (PREDICT_FALSE (ecm->run_test != EC_STARTING)) return -1; if (err) { ec_err ("connection %d failed! %U", api_context, format_session_error, err); ecm->run_test = EC_EXITING; signal_evt_to_cli (EC_CLI_CONNECTS_FAILED); return 0; } thread_index = s->thread_index; ASSERT (thread_index == vlib_get_thread_index () || session_transport_service_type (s) == TRANSPORT_SERVICE_CL); if (PREDICT_FALSE (api_context == HS_CTRL_HANDLE)) return ec_ctrl_session_connected_callback (s); wrk = ec_worker_get (thread_index); /* * Setup session */ es = ec_session_alloc (wrk); es->bytes_to_send = ecm->bytes_to_send; es->bytes_to_receive = ecm->echo_bytes ? ecm->bytes_to_send : 0ULL; es->data.rx_fifo = s->rx_fifo; es->data.rx_fifo->shr->client_session_index = es->data.session_index; es->data.tx_fifo = s->tx_fifo; es->data.tx_fifo->shr->client_session_index = es->data.session_index; es->data.vpp_evt_q = wrk->vpp_event_queue; es->vpp_session_handle = session_handle (s); es->vpp_session_index = s->session_index; s->opaque = es->data.session_index; if (ecm->is_dgram) { transport_connection_t *tc; tc = session_get_transport (s); clib_memcpy_fast (&es->data.transport, tc, sizeof (es->data.transport)); es->data.is_dgram = 1; } vec_add1 (wrk->conn_indices, es->data.session_index); clib_atomic_fetch_add (&ecm->ready_connections, 1); if (ecm->ready_connections == ecm->expected_connections) { ecm->run_test = EC_RUNNING; /* Signal the CLI process that the action is starting... */ signal_evt_to_cli (EC_CLI_CONNECTS_DONE); } return 0; } static void ec_session_reset_callback (session_t *s) { ec_main_t *ecm = &ec_main; vnet_disconnect_args_t _a = { 0 }, *a = &_a; if (s->session_state == SESSION_STATE_READY) ec_err ("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 ec_session_accept_callback (session_t *s) { return 0; } static void ec_session_disconnect_callback (session_t *s) { ec_main_t *ecm = &ec_main; vnet_disconnect_args_t _a = { 0 }, *a = &_a; if (session_handle (s) == ecm->ctrl_session_handle) { ec_dbg ("ctrl session disconnect"); ecm->ctrl_session_handle = SESSION_INVALID_HANDLE; } a->handle = session_handle (s); a->app_index = ecm->app_index; vnet_disconnect_session (a); return; } void ec_session_disconnect (session_t *s) { ec_main_t *ecm = &ec_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 ec_ctrl_session_rx_callback (session_t *s) { ec_main_t *ecm = &ec_main; int rx_bytes; hs_test_cfg_t cfg = { 0 }; rx_bytes = svm_fifo_dequeue (s->rx_fifo, sizeof (cfg), (u8 *) &cfg); if (rx_bytes != sizeof (cfg)) { ec_err ("invalid cfg length %d (expected %d)", rx_bytes, sizeof (cfg)); signal_evt_to_cli (EC_CLI_CONNECTS_FAILED); return -1; } ec_dbg ("control message received:"); if (ecm->cfg.verbose) hs_test_cfg_dump (&cfg, 1); switch (cfg.cmd) { case HS_TEST_CMD_SYNC: switch (ecm->run_test) { case EC_STARTING: if (!hs_test_cfg_verify (&cfg, &ecm->cfg)) { ec_err ("invalid config received from server!"); signal_evt_to_cli (EC_CLI_CONNECTS_FAILED); return -1; } signal_evt_to_cli (EC_CLI_CFG_SYNC); break; case EC_RUNNING: ec_dbg ("test running.."); break; case EC_EXITING: /* post test sync */ signal_evt_to_cli (EC_CLI_CFG_SYNC); break; default: ec_err ("unexpected test state! %d", ecm->run_test); break; } break; case HS_TEST_CMD_START: signal_evt_to_cli (EC_CLI_START); break; case HS_TEST_CMD_STOP: signal_evt_to_cli (EC_CLI_STOP); break; default: ec_err ("unexpected cmd! %d", cfg.cmd); break; } return 0; } static int ec_session_rx_callback (session_t *s) { ec_main_t *ecm = &ec_main; ec_worker_t *wrk; ec_session_t *es; if (PREDICT_FALSE (s->opaque == HS_CTRL_HANDLE)) return ec_ctrl_session_rx_callback (s); if (PREDICT_FALSE (ecm->run_test != EC_RUNNING)) { ec_session_disconnect (s); return -1; } wrk = ec_worker_get (s->thread_index); es = ec_session_get (wrk, s->opaque); receive_data_chunk (wrk, es); if (svm_fifo_max_dequeue_cons (s->rx_fifo)) session_enqueue_notify (s); return 0; } static int ec_add_segment_callback (u32 app_index, u64 segment_handle) { /* New segments may be added */ return 0; } static int ec_del_segment_callback (u32 app_index, u64 segment_handle) { return 0; } static session_cb_vft_t ec_cb_vft = { .session_reset_callback = ec_session_reset_callback, .session_connected_callback = ec_session_connected_callback, .session_accept_callback = ec_session_accept_callback, .session_disconnect_callback = ec_session_disconnect_callback, .builtin_app_rx_callback = ec_session_rx_callback, .add_segment_callback = ec_add_segment_callback, .del_segment_callback = ec_del_segment_callback, }; static clib_error_t * ec_attach () { vnet_app_add_cert_key_pair_args_t _ck_pair, *ck_pair = &_ck_pair; ec_main_t *ecm = &ec_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) ec_cb_vft.session_connected_callback = quic_ec_session_connected_callback; a->session_cb_vft = &ec_cb_vft; 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 ec_detach () { ec_main_t *ecm = &ec_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 int ec_transport_needs_crypto (transport_proto_t proto) { return proto == TRANSPORT_PROTO_TLS || proto == TRANSPORT_PROTO_DTLS || proto == TRANSPORT_PROTO_QUIC; } static int ec_connect_rpc (void *args) { ec_main_t *ecm = &ec_main; vnet_connect_args_t _a = {}, *a = &_a; int rv, needs_crypto; u32 n_clients, ci; 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->sep_ext.transport_flags |= TRANSPORT_CFG_F_CONNECTED; a->app_index = ecm->app_index; ci = ecm->connect_conn_index; while (ci < n_clients) { /* Crude pacing for call setups */ if (ci - ecm->ready_connections > 128) { ecm->connect_conn_index = ci; break; } a->api_context = ci; 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; } rv = vnet_connect (a); if (needs_crypto) clib_mem_free (a->sep_ext.ext_cfg); if (rv) { ec_err ("connect returned: %U", format_session_error, rv); ecm->run_test = EC_EXITING; signal_evt_to_cli (EC_CLI_CONNECTS_FAILED); break; } ci += 1; } if (ci < ecm->expected_connections && ecm->run_test != EC_EXITING) ec_program_connects (); return 0; } void ec_program_connects (void) { session_send_rpc_evt_to_thread_force (transport_cl_thread (), ec_connect_rpc, 0); } static clib_error_t * ec_ctrl_connect_rpc () { session_error_t rv; ec_main_t *ecm = &ec_main; vnet_connect_args_t _a = {}, *a = &_a; a->api_context = HS_CTRL_HANDLE; ecm->cfg.cmd = HS_TEST_CMD_SYNC; clib_memcpy (&a->sep_ext, &ecm->connect_sep, sizeof (ecm->connect_sep)); a->sep_ext.transport_proto = TRANSPORT_PROTO_TCP; a->app_index = ecm->app_index; rv = vnet_connect (a); if (rv) { ec_err ("ctrl connect returned: %U", format_session_error, rv); ecm->run_test = EC_EXITING; signal_evt_to_cli (EC_CLI_CONNECTS_FAILED); } return 0; } static void ec_ctrl_connect (void) { session_send_rpc_evt_to_thread_force (transport_cl_thread (), ec_ctrl_connect_rpc, 0); } static void ec_ctrl_session_disconnect () { ec_main_t *ecm = &ec_main; vnet_disconnect_args_t _a, *a = &_a; session_error_t err; a->handle = ecm->ctrl_session_handle; a->app_index = ecm->app_index; err = vnet_disconnect_session (a); if (err) ec_err ("vnet_disconnect_session: %U", format_session_error, err); } static int ec_ctrl_test_sync () { ec_main_t *ecm = &ec_main; ecm->cfg.test = HS_TEST_TYPE_ECHO; return ec_ctrl_send (HS_TEST_CMD_SYNC); } static int ec_ctrl_test_start () { return ec_ctrl_send (HS_TEST_CMD_START); } static int ec_ctrl_test_stop () { return ec_ctrl_send (HS_TEST_CMD_STOP); } #define ec_wait_for_signal(_sig) \ 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 while waiting for " #_sig); \ error = \ clib_error_return (0, "failed: timeout while waiting for " #_sig); \ goto cleanup; \ case _sig: \ break; \ default: \ ec_cli ("unexpected event while waiting for " #_sig ": %d", \ event_type); \ error = \ clib_error_return (0, "failed: unexpected event: %d", event_type); \ goto cleanup; \ } static clib_error_t * ec_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd) { unformat_input_t _line_input, *line_input = &_line_input; char *default_uri = "tcp://6.0.1.1/1234", *transfer_type; ec_main_t *ecm = &ec_main; uword *event_data = 0, event_type; clib_error_t *error = 0; int rv, had_config = 1; u64 tmp, total_bytes; f64 delta; if (ecm->test_client_attached) return clib_error_return (0, "failed: already running!"); if (ec_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, "echo-bytes")) ecm->echo_bytes = 1; else if (unformat (line_input, "fifo-size %U", unformat_memory_size, &ecm->fifo_size)) ; 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, "verbose")) ecm->cfg.verbose = 1; else if (unformat (line_input, "test-bytes")) ecm->cfg.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->cfg.num_test_sessions = ecm->expected_connections = ecm->n_clients * ecm->quic_streams; if (!ecm->connect_uri) { ec_cli ("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) ec_prealloc_sessions (ecm); if ((error = ec_attach ())) { clib_error_report (error); goto cleanup; } if (ecm->echo_bytes) ecm->cfg.test = HS_TEST_TYPE_BI; else ecm->cfg.test = HS_TEST_TYPE_UNI; ec_ctrl_connect (); ec_wait_for_signal (EC_CLI_CFG_SYNC); if (ec_ctrl_test_start () < 0) { ec_cli ("failed to send start command"); goto cleanup; } ec_wait_for_signal (EC_CLI_START); /* * Start. Fire off connect requests */ /* update data port */ ecm->connect_sep.port = hs_make_data_port (ecm->connect_sep.port); ecm->syn_start_time = vlib_time_now (vm); ec_program_connects (); /* * 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 stop_test; case EC_CLI_CONNECTS_DONE: 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; case EC_CLI_CONNECTS_FAILED: error = clib_error_return (0, "failed: connect returned"); goto stop_test; default: ec_cli ("unexpected event(2): %d", event_type); error = clib_error_return (0, "failed: unexpected event(2): %d", event_type); goto stop_test; } /* * 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 at %.6f with %d sessions still active...", vlib_time_now (ecm->vlib_main), ecm->ready_connections); error = clib_error_return (0, "failed: timeout with %d sessions", ecm->ready_connections); goto stop_test; case EC_CLI_TEST_DONE: ecm->test_end_time = vlib_time_now (vm); ec_cli ("Test finished at %.6f", ecm->test_end_time); break; default: ec_cli ("unexpected event(3): %d", event_type); error = clib_error_return (0, "failed: unexpected event(3): %d", event_type); goto stop_test; } /* * 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 stop_test; } total_bytes = (ecm->echo_bytes ? ecm->rx_total : ecm->tx_total); transfer_type = ecm->echo_bytes ? "full-duplex" : "half-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->cfg.test_bytes && ecm->test_failed) error = clib_error_return (0, "failed: test bytes"); stop_test: ecm->run_test = EC_EXITING; /* send stop test command to the server */ if (ec_ctrl_test_stop () < 0) { ec_cli ("failed to send stop command"); goto cleanup; } ec_wait_for_signal (EC_CLI_STOP); /* post test sync */ if (ec_ctrl_test_sync () < 0) { ec_cli ("failed to send post sync command"); goto cleanup; } ec_wait_for_signal (EC_CLI_CFG_SYNC); /* disconnect control session */ ec_ctrl_session_disconnect (); cleanup: ecm->run_test = EC_EXITING; vlib_process_wait_for_event_or_clock (vm, 10e-3); /* Detach the application, so we can use different fifo sizes next time */ if (ec_detach ()) { error = clib_error_return (0, "failed: app detach"); ec_cli ("WARNING: app detach failed..."); } ec_cleanup (ecm); if (had_config) unformat_free (line_input); if (error) ec_cli ("test failed"); return error; } VLIB_CLI_COMMAND (ec_command, static) = { .path = "test echo clients", .short_help = "test echo clients [nclients %d][[m|g]bytes ]" "[test-timeout