+++ /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 <signal.h>
-
-#include <vnet/session/application_interface.h>
-#include <vlibmemory/api.h>
-
-#include <vpp/api/vpe_msg_enum.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
-
-#define TCP_ECHO_DBG 0
-#define DBG(_fmt,_args...) \
- if (TCP_ECHO_DBG) \
- clib_warning (_fmt, _args)
-
-typedef struct
-{
- CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
-#define _(type, name) type name;
- foreach_app_session_field
-#undef _
- u64 vpp_session_handle;
- u64 bytes_sent;
- u64 bytes_to_send;
- volatile u64 bytes_received;
- volatile u64 bytes_to_receive;
- f64 start;
-} echo_session_t;
-
-typedef enum
-{
- STATE_START,
- STATE_ATTACHED,
- STATE_LISTEN,
- STATE_READY,
- STATE_DISCONNECTING,
- STATE_FAILED,
- 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 *uri;
-
- /* Session pool */
- echo_session_t *sessions;
-
- /* Hash table for disconnect processing */
- uword *session_index_by_vpp_handles;
-
- /* intermediate rx buffer */
- u8 *rx_buf;
-
- /* URI for slave's connect */
- u8 *connect_uri;
-
- u32 connected_session_index;
-
- int i_am_master;
-
- /* drop all packets */
- int no_return;
-
- /* Our event queue */
- svm_msg_q_t *our_event_queue;
-
- u8 *socket_name;
-
- pid_t my_pid;
-
- /* 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;
-
- /* Signal variables */
- 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;
-
- u8 *connect_test_data;
- pthread_t *client_thread_handles;
- u32 *thread_args;
- u32 client_bytes_received;
- u8 test_return_packets;
- u64 bytes_to_send;
- u32 fifo_size;
-
- u32 n_clients;
- u64 tx_total;
- u64 rx_total;
-
- volatile u32 n_clients_connected;
- volatile u32 n_active_clients;
-
-
- /** Flag that decides if socket, instead of svm, api is used to connect to
- * vpp. If sock api is used, shm binary api is subsequently bootstrapped
- * and all other messages are exchanged using shm IPC. */
- u8 use_sock_api;
-
- fifo_segment_main_t segment_main;
-} echo_main_t;
-
-echo_main_t echo_main;
-
-#if CLIB_DEBUG > 0
-#define NITER 10000
-#else
-#define NITER 4000000
-#endif
-
-static u8 *
-format_api_error (u8 * s, va_list * args)
-{
- echo_main_t *em = &echo_main;
- i32 error = va_arg (*args, u32);
- uword *p;
-
- p = hash_get (em->error_string_by_error_number, -error);
-
- if (p)
- s = format (s, "%s", p[0]);
- else
- s = format (s, "%d", error);
- return s;
-}
-
-static void
-init_error_string_table (echo_main_t * em)
-{
- em->error_string_by_error_number = hash_create (0, sizeof (uword));
-
-#define _(n,v,s) hash_set (em->error_string_by_error_number, -v, s);
- foreach_vnet_api_error;
-#undef _
-
- hash_set (em->error_string_by_error_number, 99, "Misc");
-}
-
-static void handle_mq_event (session_event_t * e);
-
-static int
-wait_for_state_change (echo_main_t * em, connection_state_t state)
-{
- svm_msg_q_msg_t msg;
- session_event_t *e;
- f64 timeout;
-
-#if CLIB_DEBUG > 0
-#define TIMEOUT 600.0
-#else
-#define TIMEOUT 600.0
-#endif
-
- timeout = clib_time_now (&em->clib_time) + TIMEOUT;
-
- while (clib_time_now (&em->clib_time) < timeout)
- {
- if (em->state == state)
- return 0;
- if (em->state == STATE_FAILED)
- return -1;
- if (em->time_to_stop == 1)
- return 0;
- if (!em->our_event_queue || em->state < STATE_ATTACHED)
- continue;
-
- if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_NOWAIT, 0))
- continue;
- e = svm_msg_q_msg_data (em->our_event_queue, &msg);
- handle_mq_event (e);
- svm_msg_q_free_msg (em->our_event_queue, &msg);
- }
- clib_warning ("timeout waiting for state %d", state);
- return -1;
-}
-
-void
-application_send_attach (echo_main_t * em)
-{
- vl_api_application_attach_t *bmp;
- vl_api_application_tls_cert_add_t *cert_mp;
- vl_api_application_tls_key_add_t *key_mp;
-
- 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 = em->my_client_index;
- bmp->context = ntohl (0xfeedface);
- bmp->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_ACCEPT_REDIRECT;
- bmp->options[APP_OPTIONS_FLAGS] |= APP_OPTIONS_FLAGS_ADD_SEGMENT;
- bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16;
- bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = em->fifo_size;
- bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = em->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] = 256;
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
-
- cert_mp = vl_msg_api_alloc (sizeof (*cert_mp) + test_srv_crt_rsa_len);
- clib_memset (cert_mp, 0, sizeof (*cert_mp));
- cert_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_CERT_ADD);
- cert_mp->client_index = em->my_client_index;
- cert_mp->context = ntohl (0xfeedface);
- cert_mp->cert_len = clib_host_to_net_u16 (test_srv_crt_rsa_len);
- clib_memcpy_fast (cert_mp->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cert_mp);
-
- key_mp = vl_msg_api_alloc (sizeof (*key_mp) + test_srv_key_rsa_len);
- clib_memset (key_mp, 0, sizeof (*key_mp) + test_srv_key_rsa_len);
- key_mp->_vl_msg_id = ntohs (VL_API_APPLICATION_TLS_KEY_ADD);
- key_mp->client_index = em->my_client_index;
- key_mp->context = ntohl (0xfeedface);
- key_mp->key_len = clib_host_to_net_u16 (test_srv_key_rsa_len);
- clib_memcpy_fast (key_mp->key, test_srv_key_rsa, test_srv_key_rsa_len);
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & key_mp);
-}
-
-static int
-application_attach (echo_main_t * em)
-{
- application_send_attach (em);
- if (wait_for_state_change (em, STATE_ATTACHED))
- {
- clib_warning ("timeout waiting for STATE_ATTACHED");
- return -1;
- }
- return 0;
-}
-
-void
-application_detach (echo_main_t * em)
-{
- 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 = em->my_client_index;
- bmp->context = ntohl (0xfeedface);
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
-
- DBG ("%s", "Sent detach");
-}
-
-static int
-ssvm_segment_attach (char *name, ssvm_segment_type_t type, int fd)
-{
- fifo_segment_create_args_t _a, *a = &_a;
- fifo_segment_main_t *sm = &echo_main.segment_main;
- int rv;
-
- clib_memset (a, 0, sizeof (*a));
- a->segment_name = (char *) name;
- a->segment_type = type;
-
- if (type == SSVM_SEGMENT_MEMFD)
- a->memfd_fd = fd;
-
- if ((rv = fifo_segment_attach (sm, a)))
- {
- clib_warning ("svm_fifo_segment_attach ('%s') failed", name);
- return rv;
- }
-
- vec_reset_length (a->new_segment_indices);
- return 0;
-}
-
-static void
-vl_api_application_attach_reply_t_handler (vl_api_application_attach_reply_t *
- mp)
-{
- echo_main_t *em = &echo_main;
- int *fds = 0;
- u32 n_fds = 0;
-
- if (mp->retval)
- {
- clib_warning ("attach failed: %U", format_api_error,
- clib_net_to_host_u32 (mp->retval));
- goto failed;
- }
-
- if (mp->segment_name_length == 0)
- {
- clib_warning ("segment_name_length zero");
- goto failed;
- }
-
- ASSERT (mp->app_event_queue_address);
- em->our_event_queue = uword_to_pointer (mp->app_event_queue_address,
- svm_msg_q_t *);
-
- if (mp->n_fds)
- {
- vec_validate (fds, mp->n_fds);
- vl_socket_client_recv_fd_msg (fds, mp->n_fds, 5);
-
- if (mp->fd_flags & SESSION_FD_F_VPP_MQ_SEGMENT)
- if (ssvm_segment_attach (0, SSVM_SEGMENT_MEMFD, fds[n_fds++]))
- goto failed;
-
- if (mp->fd_flags & SESSION_FD_F_MEMFD_SEGMENT)
- if (ssvm_segment_attach ((char *) mp->segment_name,
- SSVM_SEGMENT_MEMFD, fds[n_fds++]))
- goto failed;
-
- if (mp->fd_flags & SESSION_FD_F_MQ_EVENTFD)
- svm_msg_q_set_consumer_eventfd (em->our_event_queue, fds[n_fds++]);
-
- vec_free (fds);
- }
- else
- {
- if (ssvm_segment_attach ((char *) mp->segment_name, SSVM_SEGMENT_SHM,
- -1))
- goto failed;
- }
-
- em->state = STATE_ATTACHED;
- return;
-failed:
- em->state = STATE_FAILED;
- return;
-}
-
-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);
- echo_main.state = STATE_DETACHED;
-}
-
-static void
-stop_signal (int signum)
-{
- echo_main_t *um = &echo_main;
-
- um->time_to_stop = 1;
-}
-
-static void
-stats_signal (int signum)
-{
- echo_main_t *um = &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;
-}
-
-void
-vlib_cli_output (struct vlib_main_t *vm, char *fmt, ...)
-{
- clib_warning ("BUG");
-}
-
-int
-connect_to_vpp (char *name)
-{
- echo_main_t *em = &echo_main;
- api_main_t *am = &api_main;
-
- if (em->use_sock_api)
- {
- if (vl_socket_client_connect ((char *) em->socket_name, name,
- 0 /* default rx, tx buffer */ ))
- {
- clib_warning ("socket connect failed");
- return -1;
- }
-
- if (vl_socket_client_init_shm (0, 1 /* want_pthread */ ))
- {
- clib_warning ("init shm api failed");
- return -1;
- }
- }
- else
- {
- if (vl_client_connect_to_vlib ("/vpe-api", name, 32) < 0)
- {
- clib_warning ("shmem connect failed");
- return -1;
- }
- }
- em->vl_input_queue = am->shmem_hdr->vl_input_queue;
- em->my_client_index = am->my_client_index;
- return 0;
-}
-
-void
-disconnect_from_vpp (echo_main_t * em)
-{
- if (em->use_sock_api)
- vl_socket_client_disconnect ();
- else
- vl_client_disconnect_from_vlib ();
-}
-
-static void
-vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp)
-{
- fifo_segment_main_t *sm = &echo_main.segment_main;
- fifo_segment_create_args_t _a, *a = &_a;
- 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;
- }
- clib_warning ("Mapped new segment '%s' size %d", mp->segment_name,
- mp->segment_size);
-}
-
-static void
-session_print_stats (echo_main_t * em, echo_session_t * session)
-{
- f64 deltat;
- u64 bytes;
-
- deltat = clib_time_now (&em->clib_time) - session->start;
- bytes = em->i_am_master ? session->bytes_received : em->bytes_to_send;
- fformat (stdout, "Finished in %.6f\n", deltat);
- fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9);
-}
-
-static void
-test_recv_bytes (echo_session_t * s, u8 * rx_buf, u32 n_read)
-{
- int i;
- for (i = 0; i < n_read; i++)
- {
- if (rx_buf[i] != ((s->bytes_received + i) & 0xff))
- {
- clib_warning ("error at byte %lld, 0x%x not 0x%x",
- s->bytes_received + i, rx_buf[i],
- ((s->bytes_received + i) & 0xff));
- }
- }
-}
-
-static void
-recv_data_chunk (echo_main_t * em, echo_session_t * s, u8 * rx_buf)
-{
- int n_to_read, n_read;
-
- n_to_read = svm_fifo_max_dequeue_cons (s->rx_fifo);
- if (!n_to_read)
- return;
-
- do
- {
- n_read = app_recv_stream ((app_session_t *) s, rx_buf,
- vec_len (rx_buf));
-
- if (n_read > 0)
- {
- if (em->test_return_packets)
- test_recv_bytes (s, rx_buf, n_read);
-
- n_to_read -= n_read;
-
- s->bytes_received += n_read;
- s->bytes_to_receive -= n_read;
- }
- else
- break;
- }
- while (n_to_read > 0);
-}
-
-static void
-send_data_chunk (echo_main_t * em, echo_session_t * s)
-{
- u64 test_buf_len, bytes_this_chunk, test_buf_offset;
- u8 *test_data = em->connect_test_data;
- int n_sent;
-
- test_buf_len = vec_len (test_data);
- test_buf_offset = s->bytes_sent % test_buf_len;
- bytes_this_chunk = clib_min (test_buf_len - test_buf_offset,
- s->bytes_to_send);
-
- n_sent = app_send_stream ((app_session_t *) s, test_data + test_buf_offset,
- bytes_this_chunk, 0);
-
- if (n_sent > 0)
- {
- s->bytes_to_send -= n_sent;
- s->bytes_sent += n_sent;
- }
-}
-
-/*
- * Rx/Tx polling thread per connection
- */
-static void *
-client_thread_fn (void *arg)
-{
- echo_main_t *em = &echo_main;
- static u8 *rx_buf = 0;
- u32 session_index = *(u32 *) arg;
- echo_session_t *s;
-
- vec_validate (rx_buf, 1 << 20);
-
- while (!em->time_to_stop && em->state != STATE_READY)
- ;
-
- s = pool_elt_at_index (em->sessions, session_index);
- while (!em->time_to_stop)
- {
- send_data_chunk (em, s);
- recv_data_chunk (em, s, rx_buf);
- if (!s->bytes_to_send && !s->bytes_to_receive)
- break;
- }
-
- DBG ("session %d done", session_index);
- em->tx_total += s->bytes_sent;
- em->rx_total += s->bytes_received;
- em->n_active_clients--;
-
- pthread_exit (0);
-}
-
-void
-client_send_connect (echo_main_t * em)
-{
- 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 = em->my_client_index;
- cmp->context = ntohl (0xfeedface);
- memcpy (cmp->uri, em->connect_uri, vec_len (em->connect_uri));
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & cmp);
-}
-
-void
-client_send_disconnect (echo_main_t * em, echo_session_t * s)
-{
- vl_api_disconnect_session_t *dmp;
- dmp = vl_msg_api_alloc (sizeof (*dmp));
- clib_memset (dmp, 0, sizeof (*dmp));
- dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION);
- dmp->client_index = em->my_client_index;
- dmp->handle = s->vpp_session_handle;
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & dmp);
-}
-
-int
-client_disconnect (echo_main_t * em, echo_session_t * s)
-{
- client_send_disconnect (em, s);
- pool_put (em->sessions, s);
- clib_memset (s, 0xfe, sizeof (*s));
- return 0;
-}
-
-static void
-session_bound_handler (session_bound_msg_t * mp)
-{
- echo_main_t *em = &echo_main;
-
- if (mp->retval)
- {
- clib_warning ("bind failed: %U", format_api_error,
- clib_net_to_host_u32 (mp->retval));
- em->state = STATE_FAILED;
- return;
- }
-
- clib_warning ("listening on %U:%u", format_ip46_address, mp->lcl_ip,
- mp->lcl_is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, mp->lcl_port);
- em->state = STATE_READY;
-}
-
-static void
-session_accepted_handler (session_accepted_msg_t * mp)
-{
- app_session_evt_t _app_evt, *app_evt = &_app_evt;
- session_accepted_reply_msg_t *rmp;
- svm_fifo_t *rx_fifo, *tx_fifo;
- echo_main_t *em = &echo_main;
- echo_session_t *session;
- static f64 start_time;
- u32 session_index;
- u8 *ip_str;
-
- if (start_time == 0.0)
- start_time = clib_time_now (&em->clib_time);
-
- ip_str = format (0, "%U", format_ip46_address, &mp->rmt.ip, mp->rmt.is_ip4);
- clib_warning ("Accepted session from: %s:%d", ip_str,
- clib_net_to_host_u16 (mp->rmt.port));
-
- /* Allocate local session and set it up */
- pool_get (em->sessions, session);
- session_index = session - em->sessions;
-
- rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
- rx_fifo->client_session_index = session_index;
- tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
- tx_fifo->client_session_index = session_index;
-
- session->rx_fifo = rx_fifo;
- session->tx_fifo = tx_fifo;
- session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
- svm_msg_q_t *);
-
- /* Add it to lookup table */
- hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
-
- em->state = STATE_READY;
-
- /* Stats printing */
- if (pool_elts (em->sessions) && (pool_elts (em->sessions) % 20000) == 0)
- {
- f64 now = clib_time_now (&em->clib_time);
- fformat (stdout, "%d active sessions in %.2f seconds, %.2f/sec...\n",
- pool_elts (em->sessions), now - start_time,
- (f64) pool_elts (em->sessions) / (now - start_time));
- }
-
- /*
- * Send accept reply to vpp
- */
- app_alloc_ctrl_evt_to_vpp (session->vpp_evt_q, 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;
- app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
-
- session->bytes_received = 0;
- session->start = clib_time_now (&em->clib_time);
-}
-
-static void
-session_connected_handler (session_connected_msg_t * mp)
-{
- echo_main_t *em = &echo_main;
- echo_session_t *session;
- u32 session_index;
- svm_fifo_t *rx_fifo, *tx_fifo;
- int rv;
-
- if (mp->retval)
- {
- clib_warning ("connection failed with code: %U", format_api_error,
- clib_net_to_host_u32 (mp->retval));
- em->state = STATE_FAILED;
- return;
- }
-
- /*
- * Setup session
- */
-
- pool_get (em->sessions, session);
- clib_memset (session, 0, sizeof (*session));
- session_index = session - em->sessions;
-
- rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
- rx_fifo->client_session_index = session_index;
- tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
- tx_fifo->client_session_index = session_index;
-
- session->rx_fifo = rx_fifo;
- session->tx_fifo = tx_fifo;
- session->vpp_session_handle = mp->handle;
- session->start = clib_time_now (&em->clib_time);
- session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
- svm_msg_q_t *);
-
- hash_set (em->session_index_by_vpp_handles, mp->handle, session_index);
-
- /*
- * Start RX thread
- */
- em->thread_args[em->n_clients_connected] = session_index;
- rv = pthread_create (&em->client_thread_handles[em->n_clients_connected],
- NULL /*attr */ , client_thread_fn,
- (void *) &em->thread_args[em->n_clients_connected]);
- if (rv)
- {
- clib_warning ("pthread_create returned %d", rv);
- return;
- }
-
- em->n_clients_connected += 1;
- clib_warning ("session %u (0x%llx) connected with local ip %U port %d",
- session_index, mp->handle, format_ip46_address, &mp->lcl.ip,
- mp->lcl.is_ip4, clib_net_to_host_u16 (mp->lcl.port));
-}
-
-static void
-session_disconnected_handler (session_disconnected_msg_t * mp)
-{
- app_session_evt_t _app_evt, *app_evt = &_app_evt;
- session_disconnected_reply_msg_t *rmp;
- echo_main_t *em = &echo_main;
- echo_session_t *session = 0;
- uword *p;
- int rv = 0;
-
- p = hash_get (em->session_index_by_vpp_handles, mp->handle);
- if (!p)
- {
- clib_warning ("couldn't find session key %llx", mp->handle);
- return;
- }
-
- session = pool_elt_at_index (em->sessions, p[0]);
- hash_unset (em->session_index_by_vpp_handles, mp->handle);
- pool_put (em->sessions, session);
-
- 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);
-
- session_print_stats (em, session);
-}
-
-static void
-session_reset_handler (session_reset_msg_t * mp)
-{
- app_session_evt_t _app_evt, *app_evt = &_app_evt;
- echo_main_t *em = &echo_main;
- session_reset_reply_msg_t *rmp;
- echo_session_t *session = 0;
- uword *p;
- int rv = 0;
-
- p = hash_get (em->session_index_by_vpp_handles, mp->handle);
-
- if (p)
- {
- session = pool_elt_at_index (em->sessions, p[0]);
- clib_warning ("got reset");
- /* Cleanup later */
- em->time_to_stop = 1;
- }
- 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_RESET_REPLY);
- rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
- rmp->retval = rv;
- rmp->handle = mp->handle;
- app_send_ctrl_evt_to_vpp (session->vpp_evt_q, app_evt);
-}
-
-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;
- case SESSION_CTRL_EVT_RESET:
- session_reset_handler ((session_reset_msg_t *) e->data);
- break;
- default:
- clib_warning ("unhandled %u", e->event_type);
- }
-}
-
-static void
-clients_run (echo_main_t * em)
-{
- f64 start_time, deltat, timeout = 100.0;
- svm_msg_q_msg_t msg;
- session_event_t *e;
- echo_session_t *s;
- int i;
-
- /* Init test data */
- vec_validate (em->connect_test_data, 1024 * 1024 - 1);
- for (i = 0; i < vec_len (em->connect_test_data); i++)
- em->connect_test_data[i] = i & 0xff;
-
- /*
- * Attach and connect the clients
- */
- if (application_attach (em))
- return;
-
- for (i = 0; i < em->n_clients; i++)
- client_send_connect (em);
-
- start_time = clib_time_now (&em->clib_time);
- while (em->n_clients_connected < em->n_clients
- && (clib_time_now (&em->clib_time) - start_time < timeout)
- && em->state != STATE_FAILED)
-
- {
- svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
- e = svm_msg_q_msg_data (em->our_event_queue, &msg);
- handle_mq_event (e);
- svm_msg_q_free_msg (em->our_event_queue, &msg);
- }
-
- if (em->n_clients_connected != em->n_clients)
- {
- clib_warning ("failed to initialize all connections");
- return;
- }
-
- /*
- * Initialize connections
- */
- for (i = 0; i < em->n_clients; i++)
- {
- s = pool_elt_at_index (em->sessions, i);
- s->bytes_to_send = em->bytes_to_send;
- if (!em->no_return)
- s->bytes_to_receive = em->bytes_to_send;
- }
- em->n_active_clients = em->n_clients_connected;
-
- /*
- * Wait for client threads to send the data
- */
- start_time = clib_time_now (&em->clib_time);
- em->state = STATE_READY;
- while (em->n_active_clients)
- if (!svm_msg_q_is_empty (em->our_event_queue))
- {
- if (svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0))
- {
- clib_warning ("svm msg q returned");
- continue;
- }
- e = svm_msg_q_msg_data (em->our_event_queue, &msg);
- if (e->event_type != SESSION_IO_EVT_RX)
- handle_mq_event (e);
- svm_msg_q_free_msg (em->our_event_queue, &msg);
- }
-
- for (i = 0; i < em->n_clients; i++)
- {
- s = pool_elt_at_index (em->sessions, i);
- client_disconnect (em, s);
- }
-
- /*
- * Stats and detach
- */
- deltat = clib_time_now (&em->clib_time) - start_time;
- fformat (stdout, "%lld bytes (%lld mbytes, %lld gbytes) in %.2f seconds\n",
- em->tx_total, em->tx_total / (1ULL << 20),
- em->tx_total / (1ULL << 30), deltat);
- fformat (stdout, "%.4f Gbit/second\n", (em->tx_total * 8.0) / deltat / 1e9);
-
- application_detach (em);
-}
-
-static void
-vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp)
-{
- echo_main_t *em = &echo_main;
-
- if (mp->retval)
- {
- clib_warning ("bind failed: %U", format_api_error,
- clib_net_to_host_u32 (mp->retval));
- em->state = STATE_FAILED;
- return;
- }
-
- em->state = STATE_READY;
-}
-
-static void
-vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp)
-{
- echo_main_t *em = &echo_main;
-
- if (mp->retval != 0)
- clib_warning ("returned %d", ntohl (mp->retval));
-
- em->state = STATE_START;
-}
-
-u8 *
-format_ip4_address (u8 * s, va_list * args)
-{
- u8 *a = va_arg (*args, u8 *);
- return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
-}
-
-u8 *
-format_ip6_address (u8 * s, va_list * args)
-{
- ip6_address_t *a = va_arg (*args, ip6_address_t *);
- u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
-
- i_max_n_zero = ARRAY_LEN (a->as_u16);
- max_n_zeros = 0;
- i_first_zero = i_max_n_zero;
- n_zeros = 0;
- for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
- {
- u32 is_zero = a->as_u16[i] == 0;
- if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
- {
- i_first_zero = i;
- n_zeros = 0;
- }
- n_zeros += is_zero;
- if ((!is_zero && n_zeros > max_n_zeros)
- || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
- {
- i_max_n_zero = i_first_zero;
- max_n_zeros = n_zeros;
- i_first_zero = ARRAY_LEN (a->as_u16);
- n_zeros = 0;
- }
- }
-
- last_double_colon = 0;
- for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
- {
- if (i == i_max_n_zero && max_n_zeros > 1)
- {
- s = format (s, "::");
- i += max_n_zeros - 1;
- last_double_colon = 1;
- }
- else
- {
- s = format (s, "%s%x",
- (last_double_colon || i == 0) ? "" : ":",
- clib_net_to_host_u16 (a->as_u16[i]));
- last_double_colon = 0;
- }
- }
-
- return s;
-}
-
-/* Format an IP46 address. */
-u8 *
-format_ip46_address (u8 * s, va_list * args)
-{
- ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
- ip46_type_t type = va_arg (*args, ip46_type_t);
- int is_ip4 = 1;
-
- switch (type)
- {
- case IP46_TYPE_ANY:
- is_ip4 = ip46_address_is_ip4 (ip46);
- break;
- case IP46_TYPE_IP4:
- is_ip4 = 1;
- break;
- case IP46_TYPE_IP6:
- is_ip4 = 0;
- break;
- }
-
- return is_ip4 ?
- format (s, "%U", format_ip4_address, &ip46->ip4) :
- format (s, "%U", format_ip6_address, &ip46->ip6);
-}
-
-static void
-server_handle_rx (echo_main_t * em, session_event_t * e)
-{
- int n_read, max_dequeue, n_sent;
- u32 offset, to_dequeue;
- echo_session_t *s;
-
- s = pool_elt_at_index (em->sessions, e->session_index);
-
- /* Clear event only once. Otherwise, if we do it in the loop by calling
- * app_recv_stream, we may end up with a lot of unhandled rx events on the
- * message queue */
- svm_fifo_unset_event (s->rx_fifo);
-
- max_dequeue = svm_fifo_max_dequeue_cons (s->rx_fifo);
- if (PREDICT_FALSE (!max_dequeue))
- return;
-
- do
- {
- /* The options here are to limit ourselves to max_dequeue or read
- * even the data that was enqueued while we were dequeueing and which
- * now has an rx event in the mq. Either of the two work. */
- to_dequeue = clib_min (max_dequeue, vec_len (em->rx_buf));
- n_read = app_recv_stream_raw (s->rx_fifo, em->rx_buf, to_dequeue,
- 0 /* clear evt */ , 0 /* peek */ );
- if (n_read > 0)
- {
- max_dequeue -= n_read;
- s->bytes_received += n_read;
- }
- else
- break;
-
- /* Reflect if a non-drop session */
- if (!em->no_return && n_read > 0)
- {
- offset = 0;
- do
- {
- n_sent = app_send_stream ((app_session_t *) s,
- &em->rx_buf[offset],
- n_read, SVM_Q_WAIT);
- if (n_sent > 0)
- {
- n_read -= n_sent;
- offset += n_sent;
- }
- }
- while ((n_sent <= 0 || n_read > 0) && !em->time_to_stop);
- }
- }
- while (max_dequeue > 0 && !em->time_to_stop);
-}
-
-static void
-server_handle_mq (echo_main_t * em)
-{
- svm_msg_q_msg_t msg;
- session_event_t *e;
-
- while (1)
- {
- svm_msg_q_sub (em->our_event_queue, &msg, SVM_Q_WAIT, 0);
- e = svm_msg_q_msg_data (em->our_event_queue, &msg);
- switch (e->event_type)
- {
- case SESSION_IO_EVT_RX:
- server_handle_rx (em, e);
- break;
- default:
- handle_mq_event (e);
- break;
- }
- if (PREDICT_FALSE (em->time_to_stop == 1))
- break;
- if (PREDICT_FALSE (em->time_to_print_stats == 1))
- {
- em->time_to_print_stats = 0;
- fformat (stdout, "%d connections\n", pool_elts (em->sessions));
- }
- svm_msg_q_free_msg (em->our_event_queue, &msg);
- }
-}
-
-void
-server_send_listen (echo_main_t * em)
-{
- 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 = em->my_client_index;
- bmp->context = ntohl (0xfeedface);
- memcpy (bmp->uri, em->uri, vec_len (em->uri));
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & bmp);
-}
-
-int
-server_listen (echo_main_t * em)
-{
- server_send_listen (em);
- if (wait_for_state_change (em, STATE_READY))
- {
- clib_warning ("timeout waiting for STATE_READY");
- return -1;
- }
- return 0;
-}
-
-void
-server_send_unbind (echo_main_t * em)
-{
- 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 = em->my_client_index;
- memcpy (ump->uri, em->uri, vec_len (em->uri));
- vl_msg_api_send_shmem (em->vl_input_queue, (u8 *) & ump);
-}
-
-int
-server_unbind (echo_main_t * em)
-{
- server_send_unbind (em);
- if (wait_for_state_change (em, STATE_START))
- {
- clib_warning ("timeout waiting for STATE_START");
- return -1;
- }
- return 0;
-}
-
-void
-server_run (echo_main_t * em)
-{
- echo_session_t *session;
- int i;
-
- /* $$$$ hack preallocation */
- for (i = 0; i < 200000; i++)
- {
- pool_get (em->sessions, session);
- clib_memset (session, 0, sizeof (*session));
- }
- for (i = 0; i < 200000; i++)
- pool_put_index (em->sessions, i);
-
- if (application_attach (em))
- return;
-
- /* Bind to uri */
- if (server_listen (em))
- return;
-
- /* Enter handle event loop */
- server_handle_mq (em);
-
- /* Cleanup */
- server_send_unbind (em);
-
- application_detach (em);
-
- fformat (stdout, "Test complete...\n");
-}
-
-static void
-vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
- mp)
-{
- echo_main_t *em = &echo_main;
- uword *p;
-
- if (mp->retval)
- {
- clib_warning ("vpp complained about disconnect: %d",
- ntohl (mp->retval));
- return;
- }
-
- em->state = STATE_START;
-
- p = hash_get (em->session_index_by_vpp_handles, mp->handle);
- if (p)
- {
- hash_unset (em->session_index_by_vpp_handles, mp->handle);
- }
- else
- {
- clib_warning ("couldn't find session key %llx", mp->handle);
- }
-}
-
-static void
- vl_api_application_tls_cert_add_reply_t_handler
- (vl_api_application_tls_cert_add_reply_t * mp)
-{
- if (mp->retval)
- clib_warning ("failed to add tls cert");
-}
-
-static void
- vl_api_application_tls_key_add_reply_t_handler
- (vl_api_application_tls_key_add_reply_t * mp)
-{
- if (mp->retval)
- clib_warning ("failed to add tls key");
-}
-
-#define foreach_tcp_echo_msg \
-_(BIND_URI_REPLY, bind_uri_reply) \
-_(UNBIND_URI_REPLY, unbind_uri_reply) \
-_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
-_(APPLICATION_ATTACH_REPLY, application_attach_reply) \
-_(APPLICATION_DETACH_REPLY, application_detach_reply) \
-_(MAP_ANOTHER_SEGMENT, map_another_segment) \
-_(APPLICATION_TLS_CERT_ADD_REPLY, application_tls_cert_add_reply) \
-_(APPLICATION_TLS_KEY_ADD_REPLY, application_tls_key_add_reply) \
-
-void
-tcp_echo_api_hookup (echo_main_t * em)
-{
-#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
-main (int argc, char **argv)
-{
- int i_am_server = 1, test_return_packets = 0;
- echo_main_t *em = &echo_main;
- fifo_segment_main_t *sm = &em->segment_main;
- unformat_input_t _argv, *a = &_argv;
- u8 *chroot_prefix;
- u8 *uri = 0;
- u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234";
- u8 *connect_uri = (u8 *) "tcp://6.0.1.1/1234";
- u64 bytes_to_send = 64 << 10, mbytes;
- char *app_name;
- u32 tmp;
-
- clib_mem_init_thread_safe (0, 256 << 20);
-
- clib_memset (em, 0, sizeof (*em));
- em->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
- em->my_pid = getpid ();
- em->configured_segment_size = 1 << 20;
- em->socket_name = 0;
- em->use_sock_api = 1;
- em->fifo_size = 64 << 10;
- em->n_clients = 1;
-
- clib_time_init (&em->clib_time);
- init_error_string_table (em);
- fifo_segment_main_init (sm, HIGH_SEGMENT_BASEVA, 20);
- 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))
- em->configured_segment_size = tmp << 20;
- else if (unformat (a, "segment-size %dG", &tmp))
- em->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"))
- em->no_return = 1;
- else if (unformat (a, "test"))
- test_return_packets = 1;
- else if (unformat (a, "mbytes %lld", &mbytes))
- {
- bytes_to_send = mbytes << 20;
- }
- else if (unformat (a, "gbytes %lld", &mbytes))
- {
- bytes_to_send = mbytes << 30;
- }
- else if (unformat (a, "socket-name %s", &em->socket_name))
- ;
- else if (unformat (a, "use-svm-api"))
- em->use_sock_api = 0;
- else if (unformat (a, "fifo-size %d", &tmp))
- em->fifo_size = tmp << 10;
- else if (unformat (a, "nclients %d", &em->n_clients))
- ;
- else
- {
- fformat (stderr, "%s: usage [master|slave]\n", argv[0]);
- exit (1);
- }
- }
-
- if (!em->socket_name)
- em->socket_name = format (0, "%s%c", API_SOCKET_FILE, 0);
-
- if (uri)
- {
- em->uri = format (0, "%s%c", uri, 0);
- em->connect_uri = format (0, "%s%c", uri, 0);
- }
- else
- {
- em->uri = format (0, "%s%c", bind_uri, 0);
- em->connect_uri = format (0, "%s%c", connect_uri, 0);
- }
-
- em->i_am_master = i_am_server;
- em->test_return_packets = test_return_packets;
- em->bytes_to_send = bytes_to_send;
- em->time_to_stop = 0;
- vec_validate (em->rx_buf, 4 << 20);
- vec_validate (em->client_thread_handles, em->n_clients - 1);
- vec_validate (em->thread_args, em->n_clients - 1);
-
- setup_signal_handlers ();
- tcp_echo_api_hookup (em);
-
- app_name = i_am_server ? "tcp_echo_server" : "tcp_echo_client";
- 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)
- clients_run (em);
- else
- server_run (em);
-
- /* Make sure detach finishes */
- wait_for_state_change (em, STATE_DETACHED);
-
- disconnect_from_vpp (em);
- exit (0);
-}
-
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Code Review / vpp.git / commitdiff