+++ /dev/null
-/*
-* Copyright (c) 2015-2017 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>
-
-typedef struct
-{
- /*
- * Server app parameters
- */
- svm_queue_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 evnt 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 */
-
- /*
- * Test state
- */
- u8 **rx_buf; /**< Per-thread RX buffer */
- u64 byte_index;
- u32 **rx_retries;
-
- vlib_main_t *vlib_main;
-} builtin_server_main_t;
-
-builtin_server_main_t builtin_server_main;
-
-int
-builtin_session_accept_callback (stream_session_t * s)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
-
- bsm->vpp_queue[s->thread_index] =
- session_manager_get_vpp_event_queue (s->thread_index);
- s->session_state = SESSION_STATE_READY;
- bsm->byte_index = 0;
- vec_validate (bsm->rx_retries[s->thread_index], s->session_index);
- bsm->rx_retries[s->thread_index][s->session_index] = 0;
- return 0;
-}
-
-void
-builtin_session_disconnect_callback (stream_session_t * s)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- vnet_disconnect_args_t _a, *a = &_a;
-
- a->handle = session_handle (s);
- a->app_index = bsm->app_index;
- vnet_disconnect_session (a);
-}
-
-void
-builtin_session_reset_callback (stream_session_t * s)
-{
- clib_warning ("Reset session %U", format_stream_session, s, 2);
- stream_session_cleanup (s);
-}
-
-
-int
-builtin_session_connected_callback (u32 app_index, u32 api_context,
- stream_session_t * s, u8 is_fail)
-{
- clib_warning ("called...");
- return -1;
-}
-
-int
-builtin_add_segment_callback (u32 client_index, const ssvm_private_t * sp)
-{
- clib_warning ("called...");
- return -1;
-}
-
-int
-builtin_redirect_connect_callback (u32 client_index, void *mp)
-{
- clib_warning ("called...");
- return -1;
-}
-
-void
-test_bytes (builtin_server_main_t * bsm, int actual_transfer)
-{
- int i;
- u32 my_thread_id = vlib_get_thread_index ();
-
- for (i = 0; i < actual_transfer; i++)
- {
- if (bsm->rx_buf[my_thread_id][i] != ((bsm->byte_index + i) & 0xff))
- {
- clib_warning ("at %lld expected %d got %d", bsm->byte_index + i,
- (bsm->byte_index + i) & 0xff,
- bsm->rx_buf[my_thread_id][i]);
- }
- }
- bsm->byte_index += actual_transfer;
-}
-
-/*
- * If no-echo, just read the data and be done with it
- */
-int
-builtin_server_rx_callback_no_echo (stream_session_t * s)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- u32 my_thread_id = vlib_get_thread_index ();
- int actual_transfer;
- svm_fifo_t *rx_fifo;
-
- rx_fifo = s->server_rx_fifo;
-
- do
- {
- actual_transfer =
- svm_fifo_dequeue_nowait (rx_fifo, bsm->rcv_buffer_size,
- bsm->rx_buf[my_thread_id]);
- }
- while (actual_transfer > 0);
- return 0;
-}
-
-int
-builtin_server_rx_callback (stream_session_t * s)
-{
- u32 n_written, max_dequeue, max_enqueue, max_transfer;
- int actual_transfer;
- svm_fifo_t *tx_fifo, *rx_fifo;
- builtin_server_main_t *bsm = &builtin_server_main;
- session_fifo_event_t evt;
- u32 thread_index = vlib_get_thread_index ();
-
- ASSERT (s->thread_index == thread_index);
-
- rx_fifo = s->server_rx_fifo;
- tx_fifo = s->server_tx_fifo;
-
- ASSERT (rx_fifo->master_thread_index == thread_index);
- ASSERT (tx_fifo->master_thread_index == thread_index);
-
- max_dequeue = svm_fifo_max_dequeue (s->server_rx_fifo);
- max_enqueue = svm_fifo_max_enqueue (s->server_tx_fifo);
-
- if (PREDICT_FALSE (max_dequeue == 0))
- return 0;
-
- /* Number of bytes we're going to copy */
- max_transfer = (max_dequeue < max_enqueue) ? 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))
- {
- svm_queue_t *q;
- evt.fifo = rx_fifo;
- evt.event_type = FIFO_EVENT_BUILTIN_RX;
-
- q = bsm->vpp_queue[thread_index];
- if (PREDICT_FALSE (q->cursize == q->maxsize))
- clib_warning ("out of event queue space");
- else if (svm_queue_add (q, (u8 *) & evt, 0))
- clib_warning ("failed to enqueue self-tap");
-
- if (bsm->rx_retries[thread_index][s->session_index] == 500000)
- {
- clib_warning ("session stuck: %U", format_stream_session, s, 2);
- }
- if (bsm->rx_retries[thread_index][s->session_index] < 500001)
- bsm->rx_retries[thread_index][s->session_index]++;
- }
-
- return 0;
- }
-
- _vec_len (bsm->rx_buf[thread_index]) = max_transfer;
-
- actual_transfer = svm_fifo_dequeue_nowait (rx_fifo, max_transfer,
- bsm->rx_buf[thread_index]);
- ASSERT (actual_transfer == max_transfer);
-
-// test_bytes (bsm, actual_transfer);
-
- /*
- * Echo back
- */
-
- n_written = svm_fifo_enqueue_nowait (tx_fifo, actual_transfer,
- bsm->rx_buf[thread_index]);
-
- if (n_written != max_transfer)
- clib_warning ("short trout!");
-
- if (svm_fifo_set_event (tx_fifo))
- {
- /* Fabricate TX event, send to vpp */
- evt.fifo = tx_fifo;
- evt.event_type = FIFO_EVENT_APP_TX;
-
- if (svm_queue_add (bsm->vpp_queue[s->thread_index],
- (u8 *) & evt, 0 /* do wait for mutex */ ))
- clib_warning ("failed to enqueue tx evt");
- }
-
- if (PREDICT_FALSE (n_written < max_dequeue))
- goto rx_event;
-
- return 0;
-}
-
-static session_cb_vft_t builtin_session_cb_vft = {
- .session_accept_callback = builtin_session_accept_callback,
- .session_disconnect_callback = builtin_session_disconnect_callback,
- .session_connected_callback = builtin_session_connected_callback,
- .add_segment_callback = builtin_add_segment_callback,
- .redirect_connect_callback = builtin_redirect_connect_callback,
- .builtin_server_rx_callback = builtin_server_rx_callback,
- .session_reset_callback = builtin_session_reset_callback
-};
-
-/* Abuse VPP's input queue */
-static int
-create_api_loopback (vlib_main_t * vm)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- api_main_t *am = &api_main;
- vl_shmem_hdr_t *shmem_hdr;
-
- shmem_hdr = am->shmem_hdr;
- bsm->vl_input_queue = shmem_hdr->vl_input_queue;
- bsm->my_client_index =
- vl_api_memclnt_create_internal ("tcp_test_server", bsm->vl_input_queue);
- return 0;
-}
-
-static int
-server_attach (u8 * appns_id, u64 appns_flags, u64 appns_secret)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- u64 options[APP_OPTIONS_N_OPTIONS];
- vnet_app_attach_args_t _a, *a = &_a;
- u32 segment_size = 512 << 20;
-
- memset (a, 0, sizeof (*a));
- memset (options, 0, sizeof (options));
-
- if (bsm->no_echo)
- builtin_session_cb_vft.builtin_server_rx_callback =
- builtin_server_rx_callback_no_echo;
- else
- builtin_session_cb_vft.builtin_server_rx_callback =
- builtin_server_rx_callback;
-
- if (bsm->private_segment_size)
- segment_size = bsm->private_segment_size;
-
- a->api_client_index = bsm->my_client_index;
- a->session_cb_vft = &builtin_session_cb_vft;
- a->options = options;
- a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size;
- a->options[APP_OPTIONS_RX_FIFO_SIZE] = bsm->fifo_size;
- a->options[APP_OPTIONS_TX_FIFO_SIZE] = bsm->fifo_size;
- a->options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = bsm->private_segment_count;
- a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] =
- bsm->prealloc_fifos ? bsm->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;
- }
- bsm->app_index = a->app_index;
- return 0;
-}
-
-static int
-server_listen ()
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- vnet_bind_args_t _a, *a = &_a;
- memset (a, 0, sizeof (*a));
- a->app_index = bsm->app_index;
- a->uri = bsm->server_uri;
- return vnet_bind_uri (a);
-}
-
-static int
-server_create (vlib_main_t * vm, u8 * appns_id, u64 appns_flags,
- u64 appns_secret)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- vlib_thread_main_t *vtm = vlib_get_thread_main ();
- u32 num_threads;
- int i;
-
- if (bsm->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 (builtin_server_main.vpp_queue, num_threads - 1);
- vec_validate (bsm->rx_buf, num_threads - 1);
- vec_validate (bsm->rx_retries, num_threads - 1);
-
- for (i = 0; i < num_threads; i++)
- vec_validate (bsm->rx_buf[i], bsm->rcv_buffer_size);
-
- if (server_attach (appns_id, appns_flags, appns_secret))
- {
- clib_warning ("failed to attach server");
- return -1;
- }
- if (server_listen ())
- {
- clib_warning ("failed to start listening");
- return -1;
- }
- return 0;
-}
-
-static clib_error_t *
-server_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
- vlib_cli_command_t * cmd)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- u8 server_uri_set = 0, *appns_id = 0;
- u64 tmp, appns_flags = 0, appns_secret = 0;
- int rv;
-
- bsm->no_echo = 0;
- bsm->fifo_size = 64 << 10;
- bsm->rcv_buffer_size = 128 << 10;
- bsm->prealloc_fifos = 0;
- bsm->private_segment_count = 0;
- bsm->private_segment_size = 0;
- vec_free (bsm->server_uri);
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "no-echo"))
- bsm->no_echo = 1;
- else if (unformat (input, "fifo-size %d", &bsm->fifo_size))
- bsm->fifo_size <<= 10;
- else if (unformat (input, "rcv-buf-size %d", &bsm->rcv_buffer_size))
- ;
- else if (unformat (input, "prealloc-fifos %d", &bsm->prealloc_fifos))
- ;
- else if (unformat (input, "private-segment-count %d",
- &bsm->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);
- bsm->private_segment_size = tmp;
- }
- else if (unformat (input, "uri %s", &bsm->server_uri))
- server_uri_set = 1;
- 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
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- }
-
- vnet_session_enable_disable (vm, 1 /* turn on TCP, etc. */ );
-
- if (!server_uri_set)
- bsm->server_uri = (char *) format (0, "tcp://0.0.0.0/1234%c", 0);
-
- rv = server_create (vm, appns_id, appns_flags, appns_secret);
- vec_free (appns_id);
- switch (rv)
- {
- case 0:
- break;
- default:
- return clib_error_return (0, "server_create returned %d", rv);
- }
-
- return 0;
-}
-
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (server_create_command, static) =
-{
- .path = "test tcp server",
- .short_help = "test tcp server [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 = server_create_command_fn,
-};
-/* *INDENT-ON* */
-
-clib_error_t *
-builtin_tcp_server_main_init (vlib_main_t * vm)
-{
- builtin_server_main_t *bsm = &builtin_server_main;
- bsm->my_client_index = ~0;
- return 0;
-}
-
-VLIB_INIT_FUNCTION (builtin_tcp_server_main_init);
-
-/*
-* fd.io coding-style-patch-verification: ON
-*
-* Local Variables:
-* eval: (c-set-style "gnu")
-* End:
-*/
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