/* * mc_test.c: test program for vlib mc * * Copyright (c) 2010 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 <vlib/vlib.h> #include <vlib/unix/mc_socket.h> #include <vppinfra/random.h> typedef struct { u32 min_n_msg_bytes; u32 max_n_msg_bytes; u32 tx_serial; u32 rx_serial; u32 seed; u32 verbose; u32 validate; u32 window_size; f64 min_delay, max_delay; f64 n_packets_to_send; } mc_test_main_t; always_inline u32 choose_msg_size (mc_test_main_t * tm) { u32 r = tm->min_n_msg_bytes; if (tm->max_n_msg_bytes > tm->min_n_msg_bytes) r += random_u32 (&tm->seed) % (1 + tm->max_n_msg_bytes - tm->min_n_msg_bytes); return r; } static mc_test_main_t mc_test_main; static void serialize_test_msg (serialize_main_t * m, va_list * va) { mc_test_main_t *tm = &mc_test_main; u32 n_bytes = choose_msg_size (tm); u8 *msg; int i; serialize_integer (m, n_bytes, sizeof (n_bytes)); msg = serialize_get (m, n_bytes); for (i = 0; i < n_bytes; i++) msg[i] = i + tm->tx_serial; tm->tx_serial += n_bytes; } static void unserialize_test_msg (serialize_main_t * m, va_list * va) { mc_test_main_t *tm = &mc_test_main; u32 i, n_bytes, dump_msg = tm->verbose; u8 *p; unserialize_integer (m, &n_bytes, sizeof (n_bytes)); p = unserialize_get (m, n_bytes); if (tm->validate) for (i = 0; i < n_bytes; i++) if (p[i] != ((tm->rx_serial + i) & 0xff)) { clib_warning ("corrupt msg at offset %d", i); dump_msg = 1; break; } if (dump_msg) clib_warning ("got %d bytes, %U", n_bytes, format_hex_bytes, p, n_bytes); tm->rx_serial += n_bytes; } MC_SERIALIZE_MSG (test_msg, static) = { .name = "test_msg",.serialize = serialize_test_msg,.unserialize = unserialize_test_msg,}; #define SERIALIZE 1 #define EVENT_JOIN_STREAM 10 #define EVENT_SEND_DATA 11 static void test_rx_callback (mc_main_t * mcm, mc_stream_t * stream, mc_peer_id_t peer_id, u32 buffer_index) { if (SERIALIZE) { return mc_unserialize (mcm, stream, buffer_index); } else { #if DEBUG > 1 vlib_main_t *vm = mcm->vlib_main; vlib_buffer_t *b = vlib_get_buffer (vm, buffer_index); u8 *dp = vlib_buffer_get_current (b); fformat (stdout, "RX from %U %U\n", stream->transport->format_peer_id, peer_id, format_hex_bytes, dp, tm->n_msg_bytes); #endif } } static u8 * test_snapshot_callback (mc_main_t * mcm, u8 * data_vector, u32 last_global_sequence_processed) { if (SERIALIZE) { serialize_main_t m; /* Append serialized data to data vector. */ serialize_open_vector (&m, data_vector); m.stream.current_buffer_index = vec_len (data_vector); return serialize_close_vector (&m); } else return format (data_vector, "snapshot, last global seq 0x%x", last_global_sequence_processed); } static void test_handle_snapshot_callback (mc_main_t * mcm, u8 * data, u32 n_data_bytes) { if (SERIALIZE) { serialize_main_t s; unserialize_open_data (&s, data, n_data_bytes); } else clib_warning ("snapshot `%*s'", n_data_bytes, data); } static mc_socket_main_t mc_socket_main; static uword mc_test_process (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * f) { mc_test_main_t *tm = &mc_test_main; mc_socket_main_t *msm = &mc_socket_main; mc_main_t *mcm = &msm->mc_main; uword event_type, *event_data = 0; u32 data_serial = 0, stream_index; f64 delay; mc_stream_config_t config; clib_error_t *error; int i; char *intfcs[] = { "eth1", "eth0", "ce" }; clib_memset (&config, 0, sizeof (config)); config.name = "test"; config.window_size = tm->window_size; config.rx_buffer = test_rx_callback; config.catchup_snapshot = test_snapshot_callback; config.catchup = test_handle_snapshot_callback; stream_index = ~0; msm->multicast_tx_ip4_address_host_byte_order = 0xefff0100; msm->base_multicast_udp_port_host_byte_order = 0xffab; error = mc_socket_main_init (&mc_socket_main, intfcs, ARRAY_LEN (intfcs)); if (error) { clib_error_report (error); exit (1); } mcm->we_can_be_relay_master = 1; while (1) { vlib_process_wait_for_event (vm); event_type = vlib_process_get_events (vm, &event_data); switch (event_type) { case EVENT_JOIN_STREAM: stream_index = mc_stream_join (mcm, &config); break; case EVENT_SEND_DATA: { f64 times[2]; if (stream_index == ~0) stream_index = mc_stream_join (mcm, &config); times[0] = vlib_time_now (vm); for (i = 0; i < event_data[0]; i++) { u32 bi; if (SERIALIZE) { mc_serialize_stream (mcm, stream_index, &test_msg, data_serial); } else { u8 *mp; mp = mc_get_vlib_buffer (vm, sizeof (mp[0]), &bi); mp[0] = data_serial; mc_stream_send (mcm, stream_index, bi); } if (tm->min_delay > 0) { delay = tm->min_delay + random_f64 (&tm->seed) * (tm->max_delay - tm->min_delay); vlib_process_suspend (vm, delay); } data_serial++; } times[1] = vlib_time_now (vm); clib_warning ("done sending %d; %.4e per sec", event_data[0], (f64) event_data[0] / (times[1] - times[0])); break; } default: clib_warning ("bug"); break; } if (event_data) _vec_len (event_data) = 0; } } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (mc_test_process_node, static) = { .function = mc_test_process,.type = VLIB_NODE_TYPE_PROCESS,.name = "mc-test-process",}; /* *INDENT-ON* */ static clib_error_t * mc_test_command (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { f64 npkts = 10; if (unformat (input, "join")) { vlib_cli_output (vm, "Join stream...\n"); vlib_process_signal_event (vm, mc_test_process_node.index, EVENT_JOIN_STREAM, 0); return 0; } else if (unformat (input, "send %f", &npkts) || unformat (input, "send")) { vlib_process_signal_event (vm, mc_test_process_node.index, EVENT_SEND_DATA, (uword) npkts); vlib_cli_output (vm, "Send %.0f pkts...\n", npkts); return 0; } else return unformat_parse_error (input); } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (test_mc_command, static) = { .path = "test mc",.short_help = "Test mc command",.function = mc_test_command,}; /* *INDENT-ON* */ static clib_error_t * mc_show_command (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { mc_main_t *mcm = &mc_socket_main.mc_main; vlib_cli_output (vm, "%U", format_mc_main, mcm); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (show_mc_command, static) = { .path = "show mc",.short_help = "Show mc command",.function = mc_show_command,}; /* *INDENT-ON* */ static clib_error_t * mc_clear_command (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { mc_main_t *mcm = &mc_socket_main.mc_main; mc_clear_stream_stats (mcm); return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (clear_mc_command, static) = { .path = "clear mc",.short_help = "Clear mc command",.function = mc_clear_command,}; /* *INDENT-ON* */ static clib_error_t * mc_config (vlib_main_t * vm, unformat_input_t * input) { mc_test_main_t *tm = &mc_test_main; mc_socket_main_t *msm = &mc_socket_main; clib_error_t *error = 0; tm->min_n_msg_bytes = 4; tm->max_n_msg_bytes = 4; tm->window_size = 8; tm->seed = getpid (); tm->verbose = 0; tm->validate = 1; tm->min_delay = 10e-6; tm->max_delay = 10e-3; tm->n_packets_to_send = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "interface %s", &msm->multicast_interface_name)) ; else if (unformat (input, "n-bytes %d", &tm->max_n_msg_bytes)) tm->min_n_msg_bytes = tm->max_n_msg_bytes; else if (unformat (input, "max-n-bytes %d", &tm->max_n_msg_bytes)) ; else if (unformat (input, "min-n-bytes %d", &tm->min_n_msg_bytes)) ; else if (unformat (input, "seed %d", &tm->seed)) ; else if (unformat (input, "window %d", &tm->window_size)) ; else if (unformat (input, "verbose")) tm->verbose = 1; else if (unformat (input, "no-validate")) tm->validate = 0; else if (unformat (input, "min-delay %f", &tm->min_delay)) ; else if (unformat (input, "max-delay %f", &tm->max_delay)) ; else if (unformat (input, "no-delay")) tm->min_delay = tm->max_delay = 0; else if (unformat (input, "n-packets %f", &tm->n_packets_to_send)) ; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); } if (tm->n_packets_to_send > 0) vlib_process_signal_event (vm, mc_test_process_node.index, EVENT_SEND_DATA, (uword) tm->n_packets_to_send); return error; } VLIB_CONFIG_FUNCTION (mc_config, "mc"); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */