+++ /dev/null
-/*
-* Copyright (c) 2017-2019 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 <vnet/vnet.h>
-#include <vlibmemory/api.h>
-#include <vnet/session/application.h>
-#include <vnet/session/application_interface.h>
-#include <vnet/session/session.h>
-
-#define ECHO_SERVER_DBG (0)
-#define DBG(_fmt, _args...) \
- if (ECHO_SERVER_DBG) \
- clib_warning (_fmt, ##_args)
-
-typedef struct
-{
- /*
- * Server app parameters
- */
- svm_msg_q_t **vpp_queue;
- svm_queue_t *vl_input_queue; /**< Sever's event queue */
-
- u32 app_index; /**< Server app index */
- u32 my_client_index; /**< API client handle */
- u32 node_index; /**< process node index for event scheduling */
-
- /*
- * Config params
- */
- u8 no_echo; /**< Don't echo traffic */
- u32 fifo_size; /**< Fifo size */
- u32 rcv_buffer_size; /**< Rcv buffer size */
- u32 prealloc_fifos; /**< Preallocate fifos */
- u32 private_segment_count; /**< Number of private segments */
- u32 private_segment_size; /**< Size of private segments */
- char *server_uri; /**< Server URI */
- u32 tls_engine; /**< TLS engine: mbedtls/openssl */
- u8 is_dgram; /**< set if transport is dgram */
- /*
- * Test state
- */
- u8 **rx_buf; /**< Per-thread RX buffer */
- u64 byte_index;
- u32 **rx_retries;
- u8 transport_proto;
- u64 listener_handle; /**< Session handle of the root listener */
-
- vlib_main_t *vlib_main;
-} echo_server_main_t;
-
-echo_server_main_t echo_server_main;
-
-int
-quic_echo_server_qsession_accept_callback (session_t * s)
-{
- DBG ("QSession %u accept w/opaque %d", s->session_index, s->opaque);
- return 0;
-}
-
-int
-quic_echo_server_session_accept_callback (session_t * s)
-{
- echo_server_main_t *esm = &echo_server_main;
- if (s->listener_handle == esm->listener_handle)
- return quic_echo_server_qsession_accept_callback (s);
- DBG ("SSESSION %u accept w/opaque %d", s->session_index, s->opaque);
-
- esm->vpp_queue[s->thread_index] =
- session_main_get_vpp_event_queue (s->thread_index);
- s->session_state = SESSION_STATE_READY;
- esm->byte_index = 0;
- ASSERT (vec_len (esm->rx_retries) > s->thread_index);
- vec_validate (esm->rx_retries[s->thread_index], s->session_index);
- esm->rx_retries[s->thread_index][s->session_index] = 0;
- return 0;
-}
-
-int
-echo_server_session_accept_callback (session_t * s)
-{
- echo_server_main_t *esm = &echo_server_main;
- esm->vpp_queue[s->thread_index] =
- session_main_get_vpp_event_queue (s->thread_index);
- s->session_state = SESSION_STATE_READY;
- esm->byte_index = 0;
- ASSERT (vec_len (esm->rx_retries) > s->thread_index);
- vec_validate (esm->rx_retries[s->thread_index], s->session_index);
- esm->rx_retries[s->thread_index][s->session_index] = 0;
- return 0;
-}
-
-void
-echo_server_session_disconnect_callback (session_t * s)
-{
- echo_server_main_t *esm = &echo_server_main;
- vnet_disconnect_args_t _a = { 0 }, *a = &_a;
-
- a->handle = session_handle (s);
- a->app_index = esm->app_index;
- vnet_disconnect_session (a);
-}
-
-void
-echo_server_session_reset_callback (session_t * s)
-{
- echo_server_main_t *esm = &echo_server_main;
- vnet_disconnect_args_t _a = { 0 }, *a = &_a;
- clib_warning ("Reset session %U", format_session, s, 2);
- a->handle = session_handle (s);
- a->app_index = esm->app_index;
- vnet_disconnect_session (a);
-}
-
-int
-echo_server_session_connected_callback (u32 app_index, u32 api_context,
- session_t * s, u8 is_fail)
-{
- clib_warning ("called...");
- return -1;
-}
-
-int
-echo_server_add_segment_callback (u32 client_index, u64 segment_handle)
-{
- /* New heaps may be added */
- return 0;
-}
-
-int
-echo_server_redirect_connect_callback (u32 client_index, void *mp)
-{
- clib_warning ("called...");
- return -1;
-}
-
-void
-test_bytes (echo_server_main_t * esm, int actual_transfer)
-{
- int i;
- u32 my_thread_id = vlib_get_thread_index ();
-
- for (i = 0; i < actual_transfer; i++)
- {
- if (esm->rx_buf[my_thread_id][i] != ((esm->byte_index + i) & 0xff))
- {
- clib_warning ("at %lld expected %d got %d", esm->byte_index + i,
- (esm->byte_index + i) & 0xff,
- esm->rx_buf[my_thread_id][i]);
- }
- }
- esm->byte_index += actual_transfer;
-}
-
-/*
- * If no-echo, just drop the data and be done with it.
- */
-int
-echo_server_builtin_server_rx_callback_no_echo (session_t * s)
-{
- svm_fifo_t *rx_fifo = s->rx_fifo;
- svm_fifo_dequeue_drop (rx_fifo, svm_fifo_max_dequeue_cons (rx_fifo));
- return 0;
-}
-
-int
-echo_server_rx_callback (session_t * s)
-{
- u32 n_written, max_dequeue, max_enqueue, max_transfer;
- int actual_transfer;
- svm_fifo_t *tx_fifo, *rx_fifo;
- echo_server_main_t *esm = &echo_server_main;
- u32 thread_index = vlib_get_thread_index ();
- app_session_transport_t at;
-
- ASSERT (s->thread_index == thread_index);
-
- rx_fifo = s->rx_fifo;
- tx_fifo = s->tx_fifo;
-
- ASSERT (rx_fifo->master_thread_index == thread_index);
- ASSERT (tx_fifo->master_thread_index == thread_index);
-
- max_enqueue = svm_fifo_max_enqueue_prod (tx_fifo);
- if (!esm->is_dgram)
- {
- max_dequeue = svm_fifo_max_dequeue_cons (rx_fifo);
- }
- else
- {
- session_dgram_pre_hdr_t ph;
- svm_fifo_peek (rx_fifo, 0, sizeof (ph), (u8 *) & ph);
- max_dequeue = ph.data_length - ph.data_offset;
- if (!esm->vpp_queue[s->thread_index])
- {
- svm_msg_q_t *mq;
- mq = session_main_get_vpp_event_queue (s->thread_index);
- esm->vpp_queue[s->thread_index] = mq;
- }
- max_enqueue -= sizeof (session_dgram_hdr_t);
- }
-
- if (PREDICT_FALSE (max_dequeue == 0))
- return 0;
-
- /* Number of bytes we're going to copy */
- max_transfer = clib_min (max_dequeue, max_enqueue);
-
- /* No space in tx fifo */
- if (PREDICT_FALSE (max_transfer == 0))
- {
- /* XXX timeout for session that are stuck */
-
- rx_event:
- /* Program self-tap to retry */
- if (svm_fifo_set_event (rx_fifo))
- {
- if (session_send_io_evt_to_thread (rx_fifo,
- SESSION_IO_EVT_BUILTIN_RX))
- clib_warning ("failed to enqueue self-tap");
-
- vec_validate (esm->rx_retries[s->thread_index], s->session_index);
- if (esm->rx_retries[thread_index][s->session_index] == 500000)
- {
- clib_warning ("session stuck: %U", format_session, s, 2);
- }
- if (esm->rx_retries[thread_index][s->session_index] < 500001)
- esm->rx_retries[thread_index][s->session_index]++;
- }
-
- return 0;
- }
-
- vec_validate (esm->rx_buf[thread_index], max_transfer);
- if (!esm->is_dgram)
- {
- actual_transfer = app_recv_stream_raw (rx_fifo,
- esm->rx_buf[thread_index],
- max_transfer,
- 0 /* don't clear event */ ,
- 0 /* peek */ );
- }
- else
- {
- actual_transfer = app_recv_dgram_raw (rx_fifo,
- esm->rx_buf[thread_index],
- max_transfer, &at,
- 0 /* don't clear event */ ,
- 0 /* peek */ );
- }
- ASSERT (actual_transfer == max_transfer);
- /* test_bytes (esm, actual_transfer); */
-
- /*
- * Echo back
- */
-
- if (!esm->is_dgram)
- {
- n_written = app_send_stream_raw (tx_fifo,
- esm->vpp_queue[thread_index],
- esm->rx_buf[thread_index],
- actual_transfer, SESSION_IO_EVT_TX,
- 1 /* do_evt */ , 0);
- }
- else
- {
- n_written = app_send_dgram_raw (tx_fifo, &at,
- esm->vpp_queue[s->thread_index],
- esm->rx_buf[thread_index],
- actual_transfer, SESSION_IO_EVT_TX,
- 1 /* do_evt */ , 0);
- }
-
- if (n_written != max_transfer)
- clib_warning ("short trout! written %u read %u", n_written, max_transfer);
-
- if (PREDICT_FALSE (svm_fifo_max_dequeue_cons (rx_fifo)))
- goto rx_event;
-
- return 0;
-}
-
-static session_cb_vft_t echo_server_session_cb_vft = {
- .session_accept_callback = echo_server_session_accept_callback,
- .session_disconnect_callback = echo_server_session_disconnect_callback,
- .session_connected_callback = echo_server_session_connected_callback,
- .add_segment_callback = echo_server_add_segment_callback,
- .builtin_app_rx_callback = echo_server_rx_callback,
- .session_reset_callback = echo_server_session_reset_callback
-};
-
-/* Abuse VPP's input queue */
-static int
-create_api_loopback (vlib_main_t * vm)
-{
- echo_server_main_t *esm = &echo_server_main;
- api_main_t *am = &api_main;
- vl_shmem_hdr_t *shmem_hdr;
-
- shmem_hdr = am->shmem_hdr;
- esm->vl_input_queue = shmem_hdr->vl_input_queue;
- esm->my_client_index = vl_api_memclnt_create_internal ("echo_server",
- esm->vl_input_queue);
- return 0;
-}
-
-static int
-echo_server_attach (u8 * appns_id, u64 appns_flags, u64 appns_secret)
-{
- vnet_app_add_tls_cert_args_t _a_cert, *a_cert = &_a_cert;
- vnet_app_add_tls_key_args_t _a_key, *a_key = &_a_key;
- echo_server_main_t *esm = &echo_server_main;
- vnet_app_attach_args_t _a, *a = &_a;
- u64 options[APP_OPTIONS_N_OPTIONS];
- u32 segment_size = 512 << 20;
-
- clib_memset (a, 0, sizeof (*a));
- clib_memset (options, 0, sizeof (options));
-
- if (esm->no_echo)
- echo_server_session_cb_vft.builtin_app_rx_callback =
- echo_server_builtin_server_rx_callback_no_echo;
- else
- echo_server_session_cb_vft.builtin_app_rx_callback =
- echo_server_rx_callback;
- if (esm->transport_proto == TRANSPORT_PROTO_QUIC)
- echo_server_session_cb_vft.session_accept_callback =
- quic_echo_server_session_accept_callback;
-
- if (esm->private_segment_size)
- segment_size = esm->private_segment_size;
-
- a->api_client_index = esm->my_client_index;
- a->session_cb_vft = &echo_server_session_cb_vft;
- a->options = options;
- a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
- a->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = segment_size;
- a->options[APP_OPTIONS_RX_FIFO_SIZE] = esm->fifo_size;
- a->options[APP_OPTIONS_TX_FIFO_SIZE] = esm->fifo_size;
- a->options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = esm->private_segment_count;
- a->options[APP_OPTIONS_TLS_ENGINE] = esm->tls_engine;
- a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
- esm->prealloc_fifos ? esm->prealloc_fifos : 1;
-
- a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN;
- if (appns_id)
- {
- a->namespace_id = appns_id;
- a->options[APP_OPTIONS_FLAGS] |= appns_flags;
- a->options[APP_OPTIONS_NAMESPACE_SECRET] = appns_secret;
- }
-
- if (vnet_application_attach (a))
- {
- clib_warning ("failed to attach server");
- return -1;
- }
- esm->app_index = a->app_index;
-
- clib_memset (a_cert, 0, sizeof (*a_cert));
- a_cert->app_index = a->app_index;
- vec_validate (a_cert->cert, test_srv_crt_rsa_len);
- clib_memcpy_fast (a_cert->cert, test_srv_crt_rsa, test_srv_crt_rsa_len);
- vnet_app_add_tls_cert (a_cert);
-
- clib_memset (a_key, 0, sizeof (*a_key));
- a_key->app_index = a->app_index;
- vec_validate (a_key->key, test_srv_key_rsa_len);
- clib_memcpy_fast (a_key->key, test_srv_key_rsa, test_srv_key_rsa_len);
- vnet_app_add_tls_key (a_key);
- return 0;
-}
-
-static int
-echo_server_detach (void)
-{
- echo_server_main_t *esm = &echo_server_main;
- vnet_app_detach_args_t _da, *da = &_da;
- int rv;
-
- da->app_index = esm->app_index;
- rv = vnet_application_detach (da);
- esm->app_index = ~0;
- return rv;
-}
-
-static int
-echo_server_listen ()
-{
- int rv;
- echo_server_main_t *esm = &echo_server_main;
- vnet_listen_args_t _a, *a = &_a;
- clib_memset (a, 0, sizeof (*a));
- a->app_index = esm->app_index;
- a->uri = esm->server_uri;
- rv = vnet_bind_uri (a);
- esm->listener_handle = a->handle;
- return rv;
-}
-
-static int
-echo_server_create (vlib_main_t * vm, u8 * appns_id, u64 appns_flags,
- u64 appns_secret)
-{
- echo_server_main_t *esm = &echo_server_main;
- vlib_thread_main_t *vtm = vlib_get_thread_main ();
- u32 num_threads;
- int i;
-
- if (esm->my_client_index == (u32) ~ 0)
- {
- if (create_api_loopback (vm))
- {
- clib_warning ("failed to create api loopback");
- return -1;
- }
- }
-
- num_threads = 1 /* main thread */ + vtm->n_threads;
- vec_validate (echo_server_main.vpp_queue, num_threads - 1);
- vec_validate (esm->rx_buf, num_threads - 1);
- vec_validate (esm->rx_retries, num_threads - 1);
- for (i = 0; i < vec_len (esm->rx_retries); i++)
- vec_validate (esm->rx_retries[i],
- pool_elts (session_main.wrk[i].sessions));
- esm->rcv_buffer_size = clib_max (esm->rcv_buffer_size, esm->fifo_size);
- for (i = 0; i < num_threads; i++)
- vec_validate (esm->rx_buf[i], esm->rcv_buffer_size);
-
- if (echo_server_attach (appns_id, appns_flags, appns_secret))
- {
- clib_warning ("failed to attach server");
- return -1;
- }
- if (echo_server_listen ())
- {
- clib_warning ("failed to start listening");
- if (echo_server_detach ())
- clib_warning ("failed to detach");
- return -1;
- }
- return 0;
-}
-
-static clib_error_t *
-echo_server_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- echo_server_main_t *esm = &echo_server_main;
- u8 server_uri_set = 0, *appns_id = 0;
- u64 tmp, appns_flags = 0, appns_secret = 0;
- char *default_uri = "tcp://0.0.0.0/1234";
- int rv, is_stop = 0;
- session_endpoint_cfg_t sep = SESSION_ENDPOINT_CFG_NULL;
-
- esm->no_echo = 0;
- esm->fifo_size = 64 << 10;
- esm->rcv_buffer_size = 128 << 10;
- esm->prealloc_fifos = 0;
- esm->private_segment_count = 0;
- esm->private_segment_size = 0;
- esm->tls_engine = TLS_ENGINE_OPENSSL;
- vec_free (esm->server_uri);
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "uri %s", &esm->server_uri))
- server_uri_set = 1;
- else if (unformat (input, "no-echo"))
- esm->no_echo = 1;
- else if (unformat (input, "fifo-size %d", &esm->fifo_size))
- esm->fifo_size <<= 10;
- else if (unformat (input, "rcv-buf-size %d", &esm->rcv_buffer_size))
- ;
- else if (unformat (input, "prealloc-fifos %d", &esm->prealloc_fifos))
- ;
- else if (unformat (input, "private-segment-count %d",
- &esm->private_segment_count))
- ;
- else if (unformat (input, "private-segment-size %U",
- unformat_memory_size, &tmp))
- {
- if (tmp >= 0x100000000ULL)
- return clib_error_return
- (0, "private segment size %lld (%llu) too large", tmp, tmp);
- esm->private_segment_size = tmp;
- }
- else if (unformat (input, "appns %_%v%_", &appns_id))
- ;
- else if (unformat (input, "all-scope"))
- appns_flags |= (APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE
- | APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE);
- else if (unformat (input, "local-scope"))
- appns_flags |= APP_OPTIONS_FLAGS_USE_LOCAL_SCOPE;
- else if (unformat (input, "global-scope"))
- appns_flags |= APP_OPTIONS_FLAGS_USE_GLOBAL_SCOPE;
- else if (unformat (input, "secret %lu", &appns_secret))
- ;
- else if (unformat (input, "stop"))
- is_stop = 1;
- else if (unformat (input, "tls-engine %d", &esm->tls_engine))
- ;
- else
- return clib_error_return (0, "failed: unknown input `%U'",
- format_unformat_error, input);
- }
-
- if (is_stop)
- {
- if (esm->app_index == (u32) ~ 0)
- {
- clib_warning ("server not running");
- return clib_error_return (0, "failed: server not running");
- }
- rv = echo_server_detach ();
- if (rv)
- {
- clib_warning ("failed: detach");
- return clib_error_return (0, "failed: server detach %d", rv);
- }
- return 0;
- }
-
- vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
-
- if (!server_uri_set)
- {
- clib_warning ("No uri provided! Using default: %s", default_uri);
- esm->server_uri = (char *) format (0, "%s%c", default_uri, 0);
- }
-
- if ((rv = parse_uri ((char *) esm->server_uri, &sep)))
- return clib_error_return (0, "Uri parse error: %d", rv);
- esm->transport_proto = sep.transport_proto;
- esm->is_dgram = (sep.transport_proto == TRANSPORT_PROTO_UDP);
-
- rv = echo_server_create (vm, appns_id, appns_flags, appns_secret);
- vec_free (appns_id);
- if (rv)
- {
- vec_free (esm->server_uri);
- return clib_error_return (0, "failed: server_create returned %d", rv);
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (echo_server_create_command, static) =
-{
- .path = "test echo server",
- .short_help = "test echo server proto <proto> [no echo][fifo-size <mbytes>]"
- "[rcv-buf-size <bytes>][prealloc-fifos <count>]"
- "[private-segment-count <count>][private-segment-size <bytes[m|g]>]"
- "[uri <tcp://ip/port>]",
- .function = echo_server_create_command_fn,
-};
-/* *INDENT-ON* */
-
-clib_error_t *
-echo_server_main_init (vlib_main_t * vm)
-{
- echo_server_main_t *esm = &echo_server_main;
- esm->my_client_index = ~0;
- return 0;
-}
-
-VLIB_INIT_FUNCTION (echo_server_main_init);
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
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