+++ /dev/null
-/*
- * Copyright (c) 2016 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 <stdio.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/format.h>
-#include <vppinfra/error.h>
-#include <vppinfra/time.h>
-#include <vppinfra/macros.h>
-#include <vnet/vnet.h>
-#include <vlib/vlib.h>
-#include <vlib/unix/unix.h>
-#include <vlibapi/api.h>
-#include <vlibmemory/api.h>
-#include <vpp/api/vpe_msg_enum.h>
-#include <pthread.h>
-#include <vnet/session/application_interface.h>
-#include <svm/fifo_segment.h>
-
-#define vl_typedefs /* define message structures */
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_typedefs
-
-/* declare message handlers for each api */
-
-#define vl_endianfun /* define message structures */
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_endianfun
-
-/* instantiate all the print functions we know about */
-#define vl_print(handle, ...)
-#define vl_printfun
-#include <vpp/api/vpe_all_api_h.h>
-#undef vl_printfun
-
-typedef enum
-{
- STATE_START,
- STATE_ATTACHED,
- STATE_BOUND,
- STATE_READY,
- STATE_FAILED,
- STATE_DISCONNECTING,
- STATE_DETACHED
-} connection_state_t;
-
-typedef struct
-{
- /* vpe input queue */
- svm_queue_t *vl_input_queue;
-
- /* API client handle */
- u32 my_client_index;
-
- /* The URI we're playing with */
- u8 *listen_uri;
-
- /* URI for connect */
- u8 *connect_uri;
-
- /* Session pool */
- app_session_t *sessions;
-
- /* Hash table for disconnect processing */
- uword *session_index_by_vpp_handles;
-
- /* fifo segment */
- fifo_segment_t *seg;
-
- /* intermediate rx buffer */
- u8 *rx_buf;
-
- u32 fifo_size;
- int i_am_server;
- u8 is_connected;
-
- /* Our event queue */
- svm_msg_q_t *our_event_queue;
- svm_msg_q_t *ct_event_queue;
-
- /* $$$ single thread only for the moment */
- svm_msg_q_t *vpp_event_queue;
-
- /* $$$$ hack: cut-through session index */
- volatile u32 cut_through_session_index;
- volatile u32 connected_session;
-
- /* unique segment name counter */
- u32 unique_segment_index;
-
- pid_t my_pid;
-
- /* pthread handle */
- pthread_t cut_through_thread_handle;
-
- /* For deadman timers */
- clib_time_t clib_time;
-
- /* State of the connection, shared between msg RX thread and main thread */
- volatile connection_state_t state;
-
- volatile int time_to_stop;
- volatile int time_to_print_stats;
-
- u32 configured_segment_size;
-
- /* VNET_API_ERROR_FOO -> "Foo" hash table */
- uword *error_string_by_error_number;
-
- fifo_segment_main_t segment_main;
-
- u8 *connect_test_data;
-
- uword *segments_table;
- u8 do_echo;
- u8 have_return;
- u64 total_to_send;
- u64 bytes_to_send;
- u64 bytes_sent;
-} udp_echo_main_t;
-
-udp_echo_main_t udp_echo_main;
-
-static void
-stop_signal (int signum)
-{
- udp_echo_main_t *um = &udp_echo_main;
-
- um->time_to_stop = 1;
-}
-
-static void
-stats_signal (int signum)
-{
- udp_echo_main_t *um = &udp_echo_main;
- um->time_to_print_stats = 1;
-}
-
-static clib_error_t *
-setup_signal_handlers (void)
-{
- signal (SIGINT, stats_signal);
- signal (SIGQUIT, stop_signal);
- signal (SIGTERM, stop_signal);
-
- return 0;
-}
-
-uword
-unformat_ip4_address (unformat_input_t * input, va_list * args)
-{
- u8 *result = va_arg (*args, u8 *);
- unsigned a[4];
-
- if (!unformat (input, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]))
- return 0;
-
- if (a[0] >= 256 || a[1] >= 256 || a[2] >= 256 || a[3] >= 256)
- return 0;
-
- result[0] = a[0];
- result[1] = a[1];
- result[2] = a[2];
- result[3] = a[3];
-
- return 1;
-}
-
-uword
-unformat_ip6_address (unformat_input_t * input, va_list * args)
-{
- ip6_address_t *result = va_arg (*args, ip6_address_t *);
- u16 hex_quads[8];
- uword hex_quad, n_hex_quads, hex_digit, n_hex_digits;
- uword c, n_colon, double_colon_index;
-
- n_hex_quads = hex_quad = n_hex_digits = n_colon = 0;
- double_colon_index = ARRAY_LEN (hex_quads);
- while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT)
- {
- hex_digit = 16;
- if (c >= '0' && c <= '9')
- hex_digit = c - '0';
- else if (c >= 'a' && c <= 'f')
- hex_digit = c + 10 - 'a';
- else if (c >= 'A' && c <= 'F')
- hex_digit = c + 10 - 'A';
- else if (c == ':' && n_colon < 2)
- n_colon++;
- else
- {
- unformat_put_input (input);
- break;
- }
-
- /* Too many hex quads. */
- if (n_hex_quads >= ARRAY_LEN (hex_quads))
- return 0;
-
- if (hex_digit < 16)
- {
- hex_quad = (hex_quad << 4) | hex_digit;
-
- /* Hex quad must fit in 16 bits. */
- if (n_hex_digits >= 4)
- return 0;
-
- n_colon = 0;
- n_hex_digits++;
- }
-
- /* Save position of :: */
- if (n_colon == 2)
- {
- /* More than one :: ? */
- if (double_colon_index < ARRAY_LEN (hex_quads))
- return 0;
- double_colon_index = n_hex_quads;
- }
-
- if (n_colon > 0 && n_hex_digits > 0)
- {
- hex_quads[n_hex_quads++] = hex_quad;
- hex_quad = 0;
- n_hex_digits = 0;
- }
- }
-
- if (n_hex_digits > 0)
- hex_quads[n_hex_quads++] = hex_quad;
-
- {
- word i;
-
- /* Expand :: to appropriate number of zero hex quads. */
- if (double_colon_index < ARRAY_LEN (hex_quads))
- {
- word n_zero = ARRAY_LEN (hex_quads) - n_hex_quads;
-
- for (i = n_hex_quads - 1; i >= (signed) double_colon_index; i--)
- hex_quads[n_zero + i] = hex_quads[i];
-
- for (i = 0; i < n_zero; i++)
- hex_quads[double_colon_index + i] = 0;
-
- n_hex_quads = ARRAY_LEN (hex_quads);
- }
-
- /* Too few hex quads given. */
- if (n_hex_quads < ARRAY_LEN (hex_quads))
- return 0;
-
- for (i = 0; i < ARRAY_LEN (hex_quads); i++)
- result->as_u16[i] = clib_host_to_net_u16 (hex_quads[i]);
-
- return 1;
- }
-}
-
-uword
-unformat_uri (unformat_input_t * input, va_list * args)
-{
- session_endpoint_cfg_t *sep = va_arg (*args, session_endpoint_cfg_t *);
- u32 port;
- char *tmp;
-
- if (unformat (input, "%s://%U/%d", &tmp, unformat_ip4_address, &sep->ip.ip4,
- &port))
- {
- sep->port = clib_host_to_net_u16 (port);
- sep->is_ip4 = 1;
- return 1;
- }
- else if (unformat (input, "%s://%U/%d", &tmp, unformat_ip6_address,
- &sep->ip.ip6, &port))
- {
- sep->port = clib_host_to_net_u16 (port);
- sep->is_ip4 = 0;
- return 1;
- }
- return 0;
-}
-
-static void
-application_send_attach (udp_echo_main_t * utm)
-{
- vl_api_application_attach_t *bmp;
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- clib_memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_ATTACH);
- bmp->client_index = utm->my_client_index;
- bmp->context = ntohl (0xfeedface);
- bmp->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_ADD_SEGMENT;
- bmp->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
- bmp->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
- bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 2;
- bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = utm->fifo_size;
- bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = utm->fifo_size;
- bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20;
- bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20;
- bmp->options[APP_OPTIONS_EVT_QUEUE_SIZE] = 16768;
- vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
-}
-
-void
-application_detach (udp_echo_main_t * utm)
-{
- vl_api_application_detach_t *bmp;
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- clib_memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_APPLICATION_DETACH);
- bmp->client_index = utm->my_client_index;
- bmp->context = ntohl (0xfeedface);
- vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
-}
-
-static void
-vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
- mp)
-{
- fifo_segment_create_args_t _a = { 0 }, *a = &_a;
- udp_echo_main_t *utm = &udp_echo_main;
- fifo_segment_main_t *sm = &utm->segment_main;
- int rv;
-
- if (mp->retval)
- {
- clib_warning ("attach failed: %d", mp->retval);
- utm->state = STATE_FAILED;
- return;
- }
-
- if (mp->segment_name_length == 0)
- {
- clib_warning ("segment_name_length zero");
- return;
- }
-
- a->segment_name = (char *) mp->segment_name;
- a->segment_size = mp->segment_size;
-
- ASSERT (mp->app_event_queue_address);
-
- /* Attach to the segment vpp created */
- rv = fifo_segment_attach (sm, a);
- if (rv)
- {
- clib_warning ("svm_fifo_segment_attach ('%s') failed",
- mp->segment_name);
- return;
- }
-
- utm->our_event_queue = uword_to_pointer (mp->app_event_queue_address,
- svm_msg_q_t *);
- utm->state = STATE_ATTACHED;
-}
-
-static void
-vl_api_application_detach_reply_t_handler (vl_api_application_detach_reply_t *
- mp)
-{
- if (mp->retval)
- clib_warning ("detach returned with err: %d", mp->retval);
- udp_echo_main.state = STATE_DETACHED;
-}
-
-u8 *
-format_api_error (u8 * s, va_list * args)
-{
- udp_echo_main_t *utm = va_arg (*args, udp_echo_main_t *);
- i32 error = va_arg (*args, u32);
- uword *p;
-
- p = hash_get (utm->error_string_by_error_number, -error);
-
- if (p)
- s = format (s, "%s", p[0]);
- else
- s = format (s, "%d", error);
- return s;
-}
-
-int
-wait_for_state_change (udp_echo_main_t * utm, connection_state_t state)
-{
-#if CLIB_DEBUG > 0
-#define TIMEOUT 600.0
-#else
-#define TIMEOUT 600.0
-#endif
-
- f64 timeout = clib_time_now (&utm->clib_time) + TIMEOUT;
-
- while (clib_time_now (&utm->clib_time) < timeout)
- {
- if (utm->state == state)
- return 0;
- if (utm->state == STATE_FAILED)
- return -1;
- }
- return -1;
-}
-
-u64 server_bytes_received, server_bytes_sent;
-
-__clib_unused static void *
-cut_through_thread_fn (void *arg)
-{
- app_session_t *s;
- svm_fifo_t *rx_fifo;
- svm_fifo_t *tx_fifo;
- u8 *my_copy_buffer = 0;
- udp_echo_main_t *utm = &udp_echo_main;
- i32 actual_transfer;
- int rv, do_dequeue = 0;
- u32 buffer_offset;
-
- while (utm->cut_through_session_index == ~0)
- ;
-
- s = pool_elt_at_index (utm->sessions, utm->cut_through_session_index);
-
- rx_fifo = s->rx_fifo;
- tx_fifo = s->tx_fifo;
-
- vec_validate (my_copy_buffer, 64 * 1024 - 1);
-
- while (1)
- {
- do
- {
- /* We read from the tx fifo and write to the rx fifo */
- if (utm->have_return || do_dequeue)
- actual_transfer = svm_fifo_dequeue (rx_fifo,
- vec_len (my_copy_buffer),
- my_copy_buffer);
- else
- {
- /* We don't do anything with the data, drop it */
- actual_transfer = svm_fifo_max_dequeue_cons (rx_fifo);
- svm_fifo_dequeue_drop (rx_fifo, actual_transfer);
- }
- }
- while (actual_transfer <= 0);
-
- server_bytes_received += actual_transfer;
-
- if (utm->have_return)
- {
- buffer_offset = 0;
- while (actual_transfer > 0)
- {
- rv = svm_fifo_enqueue (tx_fifo, actual_transfer,
- my_copy_buffer + buffer_offset);
- if (rv > 0)
- {
- actual_transfer -= rv;
- buffer_offset += rv;
- server_bytes_sent += rv;
- }
-
- }
- }
- if (PREDICT_FALSE (utm->time_to_stop))
- break;
- }
-
- pthread_exit (0);
-}
-
-static void
-session_accepted_handler (session_accepted_msg_t * mp)
-{
- app_session_evt_t _app_evt, *app_evt = &_app_evt;
- udp_echo_main_t *utm = &udp_echo_main;
- session_accepted_reply_msg_t *rmp;
- svm_fifo_t *rx_fifo, *tx_fifo;
- app_session_t *session;
- static f64 start_time;
- u32 session_index;
- int rv = 0;
-
- if (start_time == 0.0)
- start_time = clib_time_now (&utm->clib_time);
-
- utm->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
- svm_msg_q_t *);
- rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
- tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
-
- pool_get (utm->sessions, session);
- clib_memset (session, 0, sizeof (*session));
- session_index = session - utm->sessions;
- session->session_index = session_index;
-
- rx_fifo->client_session_index = session_index;
- tx_fifo->client_session_index = session_index;
- session->rx_fifo = rx_fifo;
- session->tx_fifo = tx_fifo;
- clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
- sizeof (ip46_address_t));
- session->transport.is_ip4 = mp->rmt.is_ip4;
- session->transport.rmt_port = mp->rmt.port;
-
- hash_set (utm->session_index_by_vpp_handles, mp->handle, session_index);
- if (pool_elts (utm->sessions) && (pool_elts (utm->sessions) % 20000) == 0)
- {
- f64 now = clib_time_now (&utm->clib_time);
- fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
- pool_elts (utm->sessions), now - start_time,
- (f64) pool_elts (utm->sessions) / (now - start_time));
- }
-
- app_alloc_ctrl_evt_to_vpp (utm->vpp_event_queue, app_evt,
- SESSION_CTRL_EVT_ACCEPTED_REPLY);
- rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
- rmp->handle = mp->handle;
- rmp->context = mp->context;
- rmp->retval = rv;
- app_send_ctrl_evt_to_vpp (utm->vpp_event_queue, app_evt);
-
- CLIB_MEMORY_BARRIER ();
- utm->state = STATE_READY;
-}
-
-static void
-session_disconnected_handler (session_disconnected_msg_t * mp)
-{
- app_session_evt_t _app_evt, *app_evt = &_app_evt;
- udp_echo_main_t *utm = &udp_echo_main;
- session_disconnected_reply_msg_t *rmp;
- app_session_t *session;
- uword *p;
- int rv = 0;
-
- p = hash_get (utm->session_index_by_vpp_handles, mp->handle);
-
- if (p)
- {
- session = pool_elt_at_index (utm->sessions, p[0]);
- hash_unset (utm->session_index_by_vpp_handles, mp->handle);
- clib_warning ("disconnecting %u", session->session_index);
- pool_put (utm->sessions, session);
- }
- else
- {
- clib_warning ("couldn't find session key %llx", mp->handle);
- return;
- }
-
- app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt,
- SESSION_CTRL_EVT_DISCONNECTED_REPLY);
- rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
- rmp->retval = rv;
- rmp->handle = mp->handle;
- rmp->context = mp->context;
- app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
-}
-
-static void
-session_connected_handler (session_connected_msg_t * mp)
-{
- udp_echo_main_t *utm = &udp_echo_main;
- unformat_input_t _input, *input = &_input;
- session_endpoint_cfg_t _sep, *sep = &_sep;
- app_session_t *session;
-
- ASSERT (utm->i_am_server == 0);
-
- if (mp->retval)
- {
- clib_warning ("failed connect");
- return;
- }
-
- ASSERT (mp->server_rx_fifo && mp->server_tx_fifo);
-
- pool_get (utm->sessions, session);
- session->session_index = session - utm->sessions;
- session->rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
- session->tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
-
- /* Cut-through case */
- if (mp->ct_rx_fifo)
- {
- clib_warning ("cut-through session");
- session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
- svm_msg_q_t *);
- utm->cut_through_session_index = session->session_index;
- session->is_dgram = 0;
- sleep (1);
- session->rx_fifo->client_session_index = session->session_index;
- session->tx_fifo->client_session_index = session->session_index;
- /* TODO use ct fifos */
- }
- else
- {
- utm->connected_session = session->session_index;
- utm->vpp_event_queue = uword_to_pointer (mp->vpp_event_queue_address,
- svm_msg_q_t *);
-
- session->rx_fifo->client_session_index = session->session_index;
- session->tx_fifo->client_session_index = session->session_index;
- clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
- sizeof (ip46_address_t));
- session->transport.is_ip4 = mp->lcl.is_ip4;
- session->transport.lcl_port = mp->lcl.port;
-
- unformat_init_vector (input, utm->connect_uri);
- if (!unformat (input, "%U", unformat_uri, sep))
- {
- clib_warning ("can't figure out remote ip and port");
- utm->state = STATE_FAILED;
- unformat_free (input);
- return;
- }
- unformat_free (input);
- clib_memcpy_fast (&session->transport.rmt_ip, &sep->ip,
- sizeof (ip46_address_t));
- session->transport.rmt_port = sep->port;
- session->is_dgram = !utm->is_connected;
- }
- utm->state = STATE_READY;
-}
-
-static void
-session_bound_handler (session_bound_msg_t * mp)
-{
- udp_echo_main_t *utm = &udp_echo_main;
- svm_fifo_t *rx_fifo, *tx_fifo;
- app_session_t *session;
- u32 session_index;
-
- if (mp->retval)
- {
- clib_warning ("bind failed: %d", mp->retval);
- utm->state = STATE_FAILED;
- return;
- }
-
- rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
- tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
-
- pool_get (utm->sessions, session);
- clib_memset (session, 0, sizeof (*session));
- session_index = session - utm->sessions;
-
- rx_fifo->client_session_index = session_index;
- tx_fifo->client_session_index = session_index;
- session->rx_fifo = rx_fifo;
- session->tx_fifo = tx_fifo;
- clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
- sizeof (ip46_address_t));
- session->transport.is_ip4 = mp->lcl_is_ip4;
- session->transport.lcl_port = mp->lcl_port;
- session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
-
- utm->state = utm->is_connected ? STATE_BOUND : STATE_READY;
-}
-
-static void
-handle_mq_event (session_event_t * e)
-{
- switch (e->event_type)
- {
- case SESSION_CTRL_EVT_BOUND:
- session_bound_handler ((session_bound_msg_t *) e->data);
- break;
- case SESSION_CTRL_EVT_ACCEPTED:
- session_accepted_handler ((session_accepted_msg_t *) e->data);
- break;
- case SESSION_CTRL_EVT_CONNECTED:
- session_connected_handler ((session_connected_msg_t *) e->data);
- break;
- case SESSION_CTRL_EVT_DISCONNECTED:
- session_disconnected_handler ((session_disconnected_msg_t *) e->data);
- break;
- default:
- clib_warning ("unhandled %u", e->event_type);
- }
-}
-
-static void
-udp_client_send_connect (udp_echo_main_t * utm)
-{
- vl_api_connect_uri_t *cmp;
- cmp = vl_msg_api_alloc (sizeof (*cmp));
- clib_memset (cmp, 0, sizeof (*cmp));
-
- cmp->_vl_msg_id = ntohs (VL_API_CONNECT_URI);
- cmp->client_index = utm->my_client_index;
- cmp->context = ntohl (0xfeedface);
- memcpy (cmp->uri, utm->connect_uri, vec_len (utm->connect_uri));
- vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & cmp);
-}
-
-static void
-send_test_chunk (udp_echo_main_t * utm, app_session_t * s, u32 bytes)
-{
- u64 test_buf_len, bytes_this_chunk, test_buf_offset;
-
- u8 *test_data = utm->connect_test_data;
- u32 enq_space;
- int written;
-
- test_buf_len = vec_len (test_data);
- test_buf_offset = utm->bytes_sent % test_buf_len;
- bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
- utm->bytes_to_send);
- enq_space = svm_fifo_max_enqueue_prod (s->tx_fifo);
- bytes_this_chunk = clib_min (bytes_this_chunk, enq_space);
-
- written = app_send (s, test_data + test_buf_offset, bytes_this_chunk,
- SVM_Q_WAIT);
- if (written > 0)
- {
- utm->bytes_to_send -= written;
- utm->bytes_sent += written;
- }
-}
-
-static void
-recv_test_chunk (udp_echo_main_t * utm, app_session_t * s)
-{
- app_recv (s, utm->rx_buf, vec_len (utm->rx_buf));
-}
-
-void
-client_send_data (udp_echo_main_t * utm, u32 session_index)
-{
- f64 start_time, end_time, delta;
- app_session_t *session;
- char *transfer_type;
- u8 *test_data;
- int i;
-
- vec_validate_aligned (utm->connect_test_data, 1024 * 1024 - 1,
- CLIB_CACHE_LINE_BYTES);
- for (i = 0; i < vec_len (utm->connect_test_data); i++)
- utm->connect_test_data[i] = i & 0xff;
-
- test_data = utm->connect_test_data;
- session = pool_elt_at_index (utm->sessions, session_index);
- ASSERT (vec_len (test_data) > 0);
-
- utm->total_to_send = utm->bytes_to_send;
- vec_validate (utm->rx_buf, vec_len (test_data) - 1);
- start_time = clib_time_now (&utm->clib_time);
- while (!utm->time_to_stop && utm->bytes_to_send)
- {
- send_test_chunk (utm, session, 0);
- if (utm->have_return)
- recv_test_chunk (utm, session);
- if (utm->time_to_stop)
- break;
- }
-
- if (utm->have_return)
- {
- f64 timeout = clib_time_now (&utm->clib_time) + 5;
- while (clib_time_now (&utm->clib_time) < timeout)
- recv_test_chunk (utm, session);
- }
-
- end_time = clib_time_now (&utm->clib_time);
- delta = end_time - start_time;
- transfer_type = utm->have_return ? "full-duplex" : "half-duplex";
- clib_warning ("%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds",
- utm->total_to_send, utm->total_to_send / (1ULL << 20),
- utm->total_to_send / (1ULL << 30), delta);
- clib_warning ("%.2f bytes/second %s", ((f64) utm->total_to_send) / (delta),
- transfer_type);
- clib_warning ("%.4f gbit/second %s",
- (((f64) utm->total_to_send * 8.0) / delta / 1e9),
- transfer_type);
-}
-
-static int
-application_attach (udp_echo_main_t * utm)
-{
- application_send_attach (utm);
- if (wait_for_state_change (utm, STATE_ATTACHED))
- {
- clib_warning ("timeout waiting for STATE_ATTACHED");
- return -1;
- }
- return 0;
-}
-
-static void
-client_test (udp_echo_main_t * utm)
-{
- f64 start_time, timeout = 100.0;
- svm_msg_q_msg_t msg;
- session_event_t *e;
-
- if (application_attach (utm))
- return;
-
- udp_client_send_connect (utm);
-
- start_time = clib_time_now (&utm->clib_time);
- while (pool_elts (utm->sessions) != 1 && utm->state != STATE_FAILED)
- {
- svm_msg_q_sub (utm->our_event_queue, &msg, SVM_Q_WAIT, 0);
- e = svm_msg_q_msg_data (utm->our_event_queue, &msg);
- handle_mq_event (e);
- svm_msg_q_free_msg (utm->our_event_queue, &msg);
-
- if (clib_time_now (&utm->clib_time) - start_time >= timeout)
- break;
- }
-
- if (utm->cut_through_session_index != ~0)
- client_send_data (utm, utm->cut_through_session_index);
- else
- client_send_data (utm, utm->connected_session);
-
- application_detach (utm);
- wait_for_state_change (utm, STATE_DETACHED);
-}
-
-static void
-vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
-{
- fifo_segment_create_args_t _a, *a = &_a;
- udp_echo_main_t *utm = &udp_echo_main;
- fifo_segment_main_t *sm = &utm->segment_main;
- fifo_segment_t *seg;
- int rv;
-
- clib_memset (a, 0, sizeof (*a));
- a->segment_name = (char *) mp->segment_name;
- a->segment_size = mp->segment_size;
- /* Attach to the segment vpp created */
- rv = fifo_segment_attach (sm, a);
- if (rv)
- {
- clib_warning ("svm_fifo_segment_attach ('%s') failed",
- mp->segment_name);
- return;
- }
- seg = fifo_segment_get_segment (sm, a->new_segment_indices[0]);
- clib_warning ("Mapped new segment '%s' size %d", seg->ssvm.name,
- seg->ssvm.ssvm_size);
- hash_set (utm->segments_table, clib_net_to_host_u64 (mp->segment_handle),
- a->new_segment_indices[0]);
-}
-
-static void
-vl_api_unmap_segment_t_handler (vl_api_unmap_segment_t * mp)
-{
- udp_echo_main_t *utm = &udp_echo_main;
- fifo_segment_main_t *sm = &utm->segment_main;
- fifo_segment_t *seg;
- uword *seg_indexp;
- u64 segment_handle;
-
- segment_handle = clib_net_to_host_u64 (mp->segment_handle);
- seg_indexp = hash_get (utm->segments_table, segment_handle);
- if (!seg_indexp)
- {
- clib_warning ("segment not mapped: %s", segment_handle);
- return;
- }
- hash_unset (utm->segments_table, segment_handle);
- seg = fifo_segment_get_segment (sm, (u32) seg_indexp[0]);
- fifo_segment_delete (sm, seg);
- clib_warning ("Unmapped segment '%s'", segment_handle);
-}
-
-static void
-vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
-{
- udp_echo_main_t *utm = &udp_echo_main;
-
- if (mp->retval != 0)
- clib_warning ("returned %d", ntohl (mp->retval));
-
- utm->state = STATE_START;
-}
-
-static void
- vl_api_app_cut_through_registration_add_t_handler
- (vl_api_app_cut_through_registration_add_t * mp)
-{
-
-}
-
-#define foreach_tcp_echo_msg \
-_(UNBIND_URI_REPLY, unbind_uri_reply) \
-_(MAP_ANOTHER_SEGMENT, map_another_segment) \
-_(UNMAP_SEGMENT, unmap_segment) \
-_(APPLICATION_ATTACH_REPLY, application_attach_reply) \
-_(APPLICATION_DETACH_REPLY, application_detach_reply) \
-_(APP_CUT_THROUGH_REGISTRATION_ADD, app_cut_through_registration_add) \
-
-void
-tcp_echo_api_hookup (udp_echo_main_t * utm)
-{
-#define _(N,n) \
- vl_msg_api_set_handlers(VL_API_##N, #n, \
- vl_api_##n##_t_handler, \
- vl_noop_handler, \
- vl_api_##n##_t_endian, \
- vl_api_##n##_t_print, \
- sizeof(vl_api_##n##_t), 1);
- foreach_tcp_echo_msg;
-#undef _
-
-}
-
-int
-connect_to_vpp (char *name)
-{
- udp_echo_main_t *utm = &udp_echo_main;
- api_main_t *am = &api_main;
-
- if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
- return -1;
-
- utm->vl_input_queue = am->shmem_hdr->vl_input_queue;
- utm->my_client_index = am->my_client_index;
-
- return 0;
-}
-
-void
-vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
-{
- clib_warning ("BUG");
-}
-
-static void
-init_error_string_table (udp_echo_main_t * utm)
-{
- utm->error_string_by_error_number = hash_create (0, sizeof (uword));
-
-#define _(n,v,s) hash_set (utm->error_string_by_error_number, -v, s);
- foreach_vnet_api_error;
-#undef _
-
- hash_set (utm->error_string_by_error_number, 99, "Misc");
-}
-
-void
-server_handle_fifo_event_rx (udp_echo_main_t * utm, u32 session_index)
-{
- svm_fifo_t *rx_fifo, *tx_fifo;
- int n_read;
- app_session_t *session;
- int rv;
- u32 max_dequeue, offset, max_transfer, rx_buf_len;
-
- session = pool_elt_at_index (utm->sessions, session_index);
- rx_buf_len = vec_len (utm->rx_buf);
- rx_fifo = session->rx_fifo;
- tx_fifo = session->tx_fifo;
-
-
- max_dequeue = svm_fifo_max_dequeue_cons (rx_fifo);
- /* Allow enqueuing of a new event */
- svm_fifo_unset_event (rx_fifo);
-
- if (PREDICT_FALSE (!max_dequeue))
- return;
-
- /* Read the max_dequeue */
- do
- {
- max_transfer = clib_min (rx_buf_len, max_dequeue);
- if (session->is_dgram)
- n_read = app_recv_dgram_raw (rx_fifo, utm->rx_buf, max_transfer,
- &session->transport, 0, 0);
- else
- n_read = app_recv_stream_raw (rx_fifo, utm->rx_buf, max_transfer, 0,
- 0);
-
- if (n_read > 0)
- max_dequeue -= n_read;
-
- /* Reflect if a non-drop session */
- if (utm->have_return && n_read > 0)
- {
- offset = 0;
- do
- {
- rv = app_send (session, &utm->rx_buf[offset], n_read,
- SVM_Q_WAIT);
- if (rv > 0)
- {
- n_read -= rv;
- offset += rv;
- }
- }
- while ((rv <= 0 || n_read > 0) && !utm->time_to_stop);
-
- /* If event wasn't set, add one */
- if (svm_fifo_set_event (tx_fifo))
- app_send_io_evt_to_vpp (session->vpp_evt_q,
- tx_fifo->master_session_index,
- SESSION_IO_EVT_TX, SVM_Q_WAIT);
- }
- }
- while ((n_read < 0 || max_dequeue > 0) && !utm->time_to_stop);
-}
-
-static void
-server_handle_event_queue (udp_echo_main_t * utm)
-{
- session_event_t *e;
- svm_msg_q_msg_t msg;
- svm_msg_q_t *mq = utm->our_event_queue;
-
- while (utm->state != STATE_READY)
- sleep (5);
-
- while (1)
- {
- if (svm_msg_q_sub (mq, &msg, SVM_Q_WAIT, 0))
- {
- clib_warning ("svm msg q returned");
- continue;
- }
- e = svm_msg_q_msg_data (mq, &msg);
- switch (e->event_type)
- {
- case SESSION_IO_EVT_RX:
- server_handle_fifo_event_rx (utm, e->session_index);
- break;
-
- default:
- handle_mq_event (e);
- break;
- }
- svm_msg_q_free_msg (mq, &msg);
- if (PREDICT_FALSE (utm->time_to_stop == 1))
- return;
- if (PREDICT_FALSE (utm->time_to_print_stats == 1))
- {
- utm->time_to_print_stats = 0;
- fformat (stdout, "%d connections\n", pool_elts (utm->sessions));
- }
- }
-}
-
-static void
-server_unbind (udp_echo_main_t * utm)
-{
- vl_api_unbind_uri_t *ump;
-
- ump = vl_msg_api_alloc (sizeof (*ump));
- clib_memset (ump, 0, sizeof (*ump));
-
- ump->_vl_msg_id = ntohs (VL_API_UNBIND_URI);
- ump->client_index = utm->my_client_index;
- memcpy (ump->uri, utm->listen_uri, vec_len (utm->listen_uri));
- vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & ump);
-}
-
-static void
-server_bind (udp_echo_main_t * utm)
-{
- vl_api_bind_uri_t *bmp;
-
- bmp = vl_msg_api_alloc (sizeof (*bmp));
- clib_memset (bmp, 0, sizeof (*bmp));
-
- bmp->_vl_msg_id = ntohs (VL_API_BIND_URI);
- bmp->client_index = utm->my_client_index;
- bmp->context = ntohl (0xfeedface);
- memcpy (bmp->uri, utm->listen_uri, vec_len (utm->listen_uri));
- vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp);
-}
-
-void
-udp_server_test (udp_echo_main_t * utm)
-{
- u8 wait_for_state = utm->is_connected ? STATE_BOUND : STATE_READY;
- application_send_attach (utm);
-
- /* Bind to uri */
- server_bind (utm);
-
- if (wait_for_state_change (utm, wait_for_state))
- {
- clib_warning ("timeout waiting for state change");
- return;
- }
-
- server_handle_event_queue (utm);
-
- /* Cleanup */
- server_unbind (utm);
-
- if (wait_for_state_change (utm, STATE_START))
- {
- clib_warning ("timeout waiting for STATE_START");
- return;
- }
-
- application_detach (utm);
-
- fformat (stdout, "Test complete...\n");
-}
-
-int
-main (int argc, char **argv)
-{
- udp_echo_main_t *utm = &udp_echo_main;
- fifo_segment_main_t *sm = &utm->segment_main;
- u8 *uri = (u8 *) "udp://6.0.1.1/1234";
- unformat_input_t _argv, *a = &_argv;
- int i_am_server = 1;
- app_session_t *session;
- u8 *chroot_prefix;
- char *app_name;
- u32 tmp;
- int i;
-
- clib_mem_init_thread_safe (0, 256 << 20);
-
- fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20);
-
- vec_validate (utm->rx_buf, 128 << 10);
- utm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
- utm->my_pid = getpid ();
- utm->configured_segment_size = 1 << 20;
- utm->have_return = 1;
- utm->bytes_to_send = 1024;
- utm->fifo_size = 128 << 10;
- utm->cut_through_session_index = ~0;
- clib_time_init (&utm->clib_time);
-
- init_error_string_table (utm);
- unformat_init_command_line (a, argv);
-
- while (unformat_check_input (a) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (a, "chroot prefix %s", &chroot_prefix))
- {
- vl_set_memory_root_path ((char *) chroot_prefix);
- }
- else if (unformat (a, "uri %s", &uri))
- ;
- else if (unformat (a, "segment-size %dM", &tmp))
- utm->configured_segment_size = tmp << 20;
- else if (unformat (a, "segment-size %dG", &tmp))
- utm->configured_segment_size = tmp << 30;
- else if (unformat (a, "server"))
- i_am_server = 1;
- else if (unformat (a, "client"))
- i_am_server = 0;
- else if (unformat (a, "no-return"))
- utm->have_return = 0;
- else if (unformat (a, "mbytes %d", &tmp))
- utm->bytes_to_send = (u64) tmp << 20;
- else if (unformat (a, "fifo-size %d", &tmp))
- utm->fifo_size = tmp << 10;
- else
- {
- fformat (stderr, "%s: usage [server|client]\n");
- exit (1);
- }
- }
-
- utm->i_am_server = i_am_server;
-
- setup_signal_handlers ();
- tcp_echo_api_hookup (utm);
-
- if (i_am_server)
- {
- utm->listen_uri = format (0, "%s%c", uri, 0);
- utm->is_connected = (utm->listen_uri[4] == 'c');
- app_name = "udp_echo_server";
- }
- else
- {
- app_name = "udp_echo_client";
- utm->connect_uri = format (0, "%s%c", uri, 0);
- utm->is_connected = (utm->connect_uri[4] == 'c');
- }
- if (connect_to_vpp (app_name) < 0)
- {
- svm_region_exit ();
- fformat (stderr, "Couldn't connect to vpe, exiting...\n");
- exit (1);
- }
-
- if (i_am_server == 0)
- {
- client_test (utm);
- goto done;
- }
-
- /* $$$$ hack preallocation */
- for (i = 0; i < 200000; i++)
- {
- pool_get (utm->sessions, session);
- clib_memset (session, 0, sizeof (*session));
- }
- for (i = 0; i < 200000; i++)
- pool_put_index (utm->sessions, i);
-
- udp_server_test (utm);
-
-done:
- vl_client_disconnect_from_vlib ();
- exit (0);
-}
-
-#undef vl_api_version
-#define vl_api_version(n,v) static u32 vpe_api_version = v;
-#include <vpp/api/vpe.api.h>
-#undef vl_api_version
-
-void
-vl_client_add_api_signatures (vl_api_memclnt_create_t * mp)
-{
- /*
- * Send the main API signature in slot 0. This bit of code must
- * match the checks in ../vpe/api/api.c: vl_msg_api_version_check().
- */
- mp->api_versions[0] = clib_host_to_net_u32 (vpe_api_version);
-}
-
-u32
-vl (void *p)
-{
- return vec_len (p);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / commitdiff