diff options
Diffstat (limited to 'src/tests/vnet/session/tcp_echo.c')
| -rw-r--r-- | src/tests/vnet/session/tcp_echo.c | 1280 |
1 files changed, 1280 insertions, 0 deletions
diff --git a/src/tests/vnet/session/tcp_echo.c b/src/tests/vnet/session/tcp_echo.c new file mode 100644 index 00000000000..8bdcac3a88c --- /dev/null +++ b/src/tests/vnet/session/tcp_echo.c @@ -0,0 +1,1280 @@ +/* + * 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 <svm/svm_fifo_segment.h> +#include <vlibmemory/api.h> +#include <vpp/api/vpe_msg_enum.h> +#include <vnet/session/application_interface.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 struct +{ + svm_fifo_t *server_rx_fifo; + svm_fifo_t *server_tx_fifo; + + u64 vpp_session_handle; + u64 bytes_received; + f64 start; +} session_t; + +typedef enum +{ + STATE_START, + STATE_ATTACHED, + STATE_READY, + STATE_DISCONNECTING, + STATE_FAILED +} connection_state_t; + +typedef struct +{ + /* vpe input queue */ + unix_shared_memory_queue_t *vl_input_queue; + + /* API client handle */ + u32 my_client_index; + + /* The URI we're playing with */ + u8 *uri; + + /* Session pool */ + 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 drop_packets; + + /* Our event queue */ + unix_shared_memory_queue_t *our_event_queue; + + /* $$$ single thread only for the moment */ + unix_shared_memory_queue_t *vpp_event_queue; + + 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_rx_thread_handle; + u32 client_bytes_received; + u8 test_return_packets; + u64 bytes_to_send; + + /* convenience */ + svm_fifo_segment_main_t *segment_main; +} uri_tcp_test_main_t; + +uri_tcp_test_main_t uri_tcp_test_main; + +#if CLIB_DEBUG > 0 +#define NITER 10000 +#else +#define NITER 4000000 +#endif + +static u8 * +format_api_error (u8 * s, va_list * args) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + 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; +} + +static void +init_error_string_table (uri_tcp_test_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"); +} + +int +wait_for_state_change (uri_tcp_test_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; + if (utm->time_to_stop == 1) + return 0; + } + clib_warning ("timeout waiting for STATE_READY"); + return -1; +} + +void +application_send_attach (uri_tcp_test_main_t * utm) +{ + vl_api_application_attach_t *bmp; + u32 fifo_size = 4 << 20; + bmp = vl_msg_api_alloc (sizeof (*bmp)); + 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_ACCEPT_REDIRECT | APP_OPTIONS_FLAGS_ADD_SEGMENT; + bmp->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = 16; + bmp->options[APP_OPTIONS_RX_FIFO_SIZE] = fifo_size; + bmp->options[APP_OPTIONS_TX_FIFO_SIZE] = fifo_size; + bmp->options[APP_OPTIONS_ADD_SEGMENT_SIZE] = 128 << 20; + bmp->options[APP_OPTIONS_SEGMENT_SIZE] = 256 << 20; + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp); +} + +int +application_attach (uri_tcp_test_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; +} + +void +application_detach (uri_tcp_test_main_t * utm) +{ + vl_api_application_detach_t *bmp; + bmp = vl_msg_api_alloc (sizeof (*bmp)); + 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) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + svm_fifo_segment_create_args_t _a, *a = &_a; + int rv; + + if (mp->retval) + { + clib_warning ("attach failed: %U", format_api_error, + clib_net_to_host_u32 (mp->retval)); + utm->state = STATE_FAILED; + return; + } + + if (mp->segment_name_length == 0) + { + clib_warning ("segment_name_length zero"); + return; + } + + memset (a, 0, sizeof (*a)); + 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 = svm_fifo_segment_attach (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, + unix_shared_memory_queue_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); +} + +static void +stop_signal (int signum) +{ + uri_tcp_test_main_t *um = &uri_tcp_test_main; + + um->time_to_stop = 1; +} + +static void +stats_signal (int signum) +{ + uri_tcp_test_main_t *um = &uri_tcp_test_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) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_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; +} + +static void +vl_api_map_another_segment_t_handler (vl_api_map_another_segment_t * mp) +{ + svm_fifo_segment_create_args_t _a, *a = &_a; + int rv; + + 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 = svm_fifo_segment_attach (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 (uri_tcp_test_main_t * utm, session_t * session) +{ + f64 deltat; + u64 bytes; + + deltat = clib_time_now (&utm->clib_time) - session->start; + bytes = utm->i_am_master ? session->bytes_received : utm->bytes_to_send; + fformat (stdout, "Finished in %.6f\n", deltat); + fformat (stdout, "%.4f Gbit/second\n", (bytes * 8.0) / deltat / 1e9); +} + +static void +vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + session_t *session = 0; + vl_api_disconnect_session_reply_t *rmp; + 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); + pool_put (utm->sessions, session); + } + else + { + clib_warning ("couldn't find session key %llx", mp->handle); + rv = -11; + } + +// utm->time_to_stop = 1; + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + + rmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION_REPLY); + rmp->retval = rv; + rmp->handle = mp->handle; + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp); + + if (session) + session_print_stats (utm, session); +} + +static void +vl_api_reset_session_t_handler (vl_api_reset_session_t * mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + vl_api_reset_session_reply_t *rmp; + uword *p; + int rv = 0; + + p = hash_get (utm->session_index_by_vpp_handles, mp->handle); + + if (p) + { + clib_warning ("got reset"); + /* Cleanup later */ + utm->time_to_stop = 1; + } + else + { + clib_warning ("couldn't find session key %llx", mp->handle); + rv = -11; + } + + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_RESET_SESSION_REPLY); + rmp->retval = rv; + rmp->handle = mp->handle; + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp); +} + +void +client_handle_fifo_event_rx (uri_tcp_test_main_t * utm, + session_fifo_event_t * e) +{ + svm_fifo_t *rx_fifo; + int n_read, bytes, i; + + rx_fifo = e->fifo; + + bytes = svm_fifo_max_dequeue (rx_fifo); + /* Allow enqueuing of new event */ + svm_fifo_unset_event (rx_fifo); + + /* Read the bytes */ + do + { + n_read = svm_fifo_dequeue_nowait (rx_fifo, + clib_min (vec_len (utm->rx_buf), + bytes), utm->rx_buf); + if (n_read > 0) + { + bytes -= n_read; + if (utm->test_return_packets) + { + for (i = 0; i < n_read; i++) + { + if (utm->rx_buf[i] + != ((utm->client_bytes_received + i) & 0xff)) + { + clib_warning ("error at byte %lld, 0x%x not 0x%x", + utm->client_bytes_received + i, + utm->rx_buf[i], + ((utm->client_bytes_received + + i) & 0xff)); + } + } + } + utm->client_bytes_received += n_read; + } + else + { + if (n_read == -2) + { +// clib_warning ("weird!"); + break; + } + } + + } + while (bytes > 0); +} + +void +client_handle_event_queue (uri_tcp_test_main_t * utm) +{ + session_fifo_event_t _e, *e = &_e;; + + unix_shared_memory_queue_sub (utm->our_event_queue, (u8 *) e, + 0 /* nowait */ ); + switch (e->event_type) + { + case FIFO_EVENT_APP_RX: + client_handle_fifo_event_rx (utm, e); + break; + + case FIFO_EVENT_DISCONNECT: + return; + + default: + clib_warning ("unknown event type %d", e->event_type); + break; + } +} + +static void * +client_rx_thread_fn (void *arg) +{ + session_fifo_event_t _e, *e = &_e; + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + + utm->client_bytes_received = 0; + while (1) + { + unix_shared_memory_queue_sub (utm->our_event_queue, (u8 *) e, + 0 /* nowait */ ); + switch (e->event_type) + { + case FIFO_EVENT_APP_RX: + client_handle_fifo_event_rx (utm, e); + break; + + case FIFO_EVENT_DISCONNECT: + return 0; + default: + clib_warning ("unknown event type %d", e->event_type); + break; + } + + if (PREDICT_FALSE (utm->time_to_stop == 1)) + break; + } + pthread_exit (0); +} + + +static void +vl_api_connect_session_reply_t_handler (vl_api_connect_session_reply_t * mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + 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)); + utm->state = STATE_FAILED; + return; + } + else + { + clib_warning ("connected with local ip %U port %d", format_ip46_address, + mp->lcl_ip, mp->is_ip4, + clib_net_to_host_u16 (mp->lcl_port)); + } + + utm->vpp_event_queue = + uword_to_pointer (mp->vpp_event_queue_address, + unix_shared_memory_queue_t *); + + /* + * Setup session + */ + + pool_get (utm->sessions, session); + session_index = session - utm->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->server_rx_fifo = rx_fifo; + session->server_tx_fifo = tx_fifo; + session->vpp_session_handle = mp->handle; + session->start = clib_time_now (&utm->clib_time); + + /* Save handle */ + utm->connected_session_index = session_index; + utm->state = STATE_READY; + + /* Add it to lookup table */ + hash_set (utm->session_index_by_vpp_handles, mp->handle, session_index); + + /* Start RX thread */ + rv = pthread_create (&utm->client_rx_thread_handle, + NULL /*attr */ , client_rx_thread_fn, 0); + if (rv) + { + clib_warning ("pthread_create returned %d", rv); + rv = VNET_API_ERROR_SYSCALL_ERROR_1; + } +} + +static void +send_test_chunk (uri_tcp_test_main_t * utm, svm_fifo_t * tx_fifo, int mypid, + u32 bytes) +{ + u8 *test_data = utm->connect_test_data; + u64 bytes_sent = 0; + int test_buf_offset = 0; + u32 bytes_to_snd; + u32 queue_max_chunk = 128 << 10, actual_write; + session_fifo_event_t evt; + int rv; + + bytes_to_snd = (bytes == 0) ? vec_len (test_data) : bytes; + if (bytes_to_snd > vec_len (test_data)) + bytes_to_snd = vec_len (test_data); + + while (bytes_to_snd > 0 && !utm->time_to_stop) + { + actual_write = (bytes_to_snd > queue_max_chunk) ? + queue_max_chunk : bytes_to_snd; + rv = svm_fifo_enqueue_nowait (tx_fifo, actual_write, + test_data + test_buf_offset); + + if (rv > 0) + { + bytes_to_snd -= rv; + test_buf_offset += rv; + bytes_sent += rv; + + if (svm_fifo_set_event (tx_fifo)) + { + /* Fabricate TX event, send to vpp */ + evt.fifo = tx_fifo; + evt.event_type = FIFO_EVENT_APP_TX; + + unix_shared_memory_queue_add (utm->vpp_event_queue, + (u8 *) & evt, + 0 /* do wait for mutex */ ); + } + } + } +} + +void +client_send_data (uri_tcp_test_main_t * utm) +{ + u8 *test_data = utm->connect_test_data; + int mypid = getpid (); + session_t *session; + svm_fifo_t *tx_fifo; + u32 n_iterations, leftover; + int i; + + session = pool_elt_at_index (utm->sessions, utm->connected_session_index); + tx_fifo = session->server_tx_fifo; + + ASSERT (vec_len (test_data) > 0); + + vec_validate (utm->rx_buf, vec_len (test_data) - 1); + n_iterations = utm->bytes_to_send / vec_len (test_data); + + for (i = 0; i < n_iterations; i++) + { + send_test_chunk (utm, tx_fifo, mypid, 0); + if (utm->time_to_stop) + break; + } + + leftover = utm->bytes_to_send % vec_len (test_data); + if (leftover) + send_test_chunk (utm, tx_fifo, mypid, leftover); + + if (!utm->drop_packets) + { + f64 timeout = clib_time_now (&utm->clib_time) + 10; + + /* Wait for the outstanding packets */ + while (utm->client_bytes_received < + vec_len (test_data) * n_iterations + leftover) + { + if (clib_time_now (&utm->clib_time) > timeout) + { + clib_warning ("timed out waiting for the missing packets"); + break; + } + } + } + utm->time_to_stop = 1; +} + +void +client_send_connect (uri_tcp_test_main_t * utm) +{ + vl_api_connect_uri_t *cmp; + cmp = vl_msg_api_alloc (sizeof (*cmp)); + 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); +} + +int +client_connect (uri_tcp_test_main_t * utm) +{ + client_send_connect (utm); + if (wait_for_state_change (utm, STATE_READY)) + { + clib_warning ("Connect failed"); + return -1; + } + return 0; +} + +void +client_send_disconnect (uri_tcp_test_main_t * utm) +{ + session_t *connected_session; + vl_api_disconnect_session_t *dmp; + connected_session = pool_elt_at_index (utm->sessions, + utm->connected_session_index); + dmp = vl_msg_api_alloc (sizeof (*dmp)); + memset (dmp, 0, sizeof (*dmp)); + dmp->_vl_msg_id = ntohs (VL_API_DISCONNECT_SESSION); + dmp->client_index = utm->my_client_index; + dmp->handle = connected_session->vpp_session_handle; + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & dmp); +} + +int +client_disconnect (uri_tcp_test_main_t * utm) +{ + client_send_disconnect (utm); + clib_warning ("Sent disconnect"); + if (wait_for_state_change (utm, STATE_START)) + { + clib_warning ("Disconnect failed"); + return -1; + } + return 0; +} + +static void +client_test (uri_tcp_test_main_t * utm) +{ + int i; + + if (application_attach (utm)) + return; + + if (client_connect (utm)) + { + application_detach (utm); + return; + } + + /* Init test data */ + vec_validate (utm->connect_test_data, 128 * 1024 - 1); + for (i = 0; i < vec_len (utm->connect_test_data); i++) + utm->connect_test_data[i] = i & 0xff; + + /* Start send */ + client_send_data (utm); + + /* Disconnect */ + client_disconnect (utm); + + application_detach (utm); +} + +static void +vl_api_bind_uri_reply_t_handler (vl_api_bind_uri_reply_t * mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + + if (mp->retval) + { + clib_warning ("bind failed: %U", format_api_error, + clib_net_to_host_u32 (mp->retval)); + utm->state = STATE_FAILED; + return; + } + + utm->state = STATE_READY; +} + +static void +vl_api_unbind_uri_reply_t_handler (vl_api_unbind_uri_reply_t * mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + + if (mp->retval != 0) + clib_warning ("returned %d", ntohl (mp->retval)); + + utm->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 +vl_api_accept_session_t_handler (vl_api_accept_session_t * mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + vl_api_accept_session_reply_t *rmp; + svm_fifo_t *rx_fifo, *tx_fifo; + session_t *session; + static f64 start_time; + u32 session_index; + u8 *ip_str; + + if (start_time == 0.0) + start_time = clib_time_now (&utm->clib_time); + + ip_str = format (0, "%U", format_ip46_address, &mp->ip, mp->is_ip4); + clib_warning ("Accepted session from: %s:%d", ip_str, + clib_net_to_host_u16 (mp->port)); + utm->vpp_event_queue = + uword_to_pointer (mp->vpp_event_queue_address, + unix_shared_memory_queue_t *); + + /* Allocate local session and set it up */ + pool_get (utm->sessions, session); + session_index = session - utm->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->server_rx_fifo = rx_fifo; + session->server_tx_fifo = tx_fifo; + + /* Add it to lookup table */ + hash_set (utm->session_index_by_vpp_handles, mp->handle, session_index); + + utm->state = STATE_READY; + + /* Stats printing */ + 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)); + } + + /* + * Send accept reply to vpp + */ + rmp = vl_msg_api_alloc (sizeof (*rmp)); + memset (rmp, 0, sizeof (*rmp)); + rmp->_vl_msg_id = ntohs (VL_API_ACCEPT_SESSION_REPLY); + rmp->handle = mp->handle; + rmp->context = mp->context; + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & rmp); + + session->bytes_received = 0; + session->start = clib_time_now (&utm->clib_time); +} + +void +server_handle_fifo_event_rx (uri_tcp_test_main_t * utm, + session_fifo_event_t * e) +{ + svm_fifo_t *rx_fifo, *tx_fifo; + int n_read; + session_fifo_event_t evt; + unix_shared_memory_queue_t *q; + session_t *session; + int rv; + u32 max_dequeue, offset, max_transfer, rx_buf_len; + + rx_buf_len = vec_len (utm->rx_buf); + rx_fifo = e->fifo; + session = &utm->sessions[rx_fifo->client_session_index]; + tx_fifo = session->server_tx_fifo; + + max_dequeue = svm_fifo_max_dequeue (rx_fifo); + /* Allow enqueuing of a new event */ + svm_fifo_unset_event (rx_fifo); + + if (PREDICT_FALSE (max_dequeue == 0)) + { + return; + } + + /* Read the max_dequeue */ + do + { + max_transfer = clib_min (rx_buf_len, max_dequeue); + n_read = svm_fifo_dequeue_nowait (rx_fifo, max_transfer, utm->rx_buf); + if (n_read > 0) + { + max_dequeue -= n_read; + session->bytes_received += n_read; + } + + /* Reflect if a non-drop session */ + if (!utm->drop_packets && n_read > 0) + { + offset = 0; + do + { + rv = svm_fifo_enqueue_nowait (tx_fifo, n_read, + &utm->rx_buf[offset]); + 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)) + { + /* Fabricate TX event, send to vpp */ + evt.fifo = tx_fifo; + evt.event_type = FIFO_EVENT_APP_TX; + + q = utm->vpp_event_queue; + unix_shared_memory_queue_add (q, (u8 *) & evt, + 1 /* do wait for mutex */ ); + } + } + } + while ((n_read < 0 || max_dequeue > 0) && !utm->time_to_stop); +} + +void +server_handle_event_queue (uri_tcp_test_main_t * utm) +{ + session_fifo_event_t _e, *e = &_e; + + while (1) + { + unix_shared_memory_queue_sub (utm->our_event_queue, (u8 *) e, + 0 /* nowait */ ); + switch (e->event_type) + { + case FIFO_EVENT_APP_RX: + server_handle_fifo_event_rx (utm, e); + break; + + case FIFO_EVENT_DISCONNECT: + return; + + default: + clib_warning ("unknown event type %d", e->event_type); + break; + } + if (PREDICT_FALSE (utm->time_to_stop == 1)) + break; + if (PREDICT_FALSE (utm->time_to_print_stats == 1)) + { + utm->time_to_print_stats = 0; + fformat (stdout, "%d connections\n", pool_elts (utm->sessions)); + } + } +} + +void +server_send_listen (uri_tcp_test_main_t * utm) +{ + vl_api_bind_uri_t *bmp; + bmp = vl_msg_api_alloc (sizeof (*bmp)); + 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->uri, vec_len (utm->uri)); + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & bmp); +} + +int +server_listen (uri_tcp_test_main_t * utm) +{ + server_send_listen (utm); + if (wait_for_state_change (utm, STATE_READY)) + { + clib_warning ("timeout waiting for STATE_READY"); + return -1; + } + return 0; +} + +void +server_send_unbind (uri_tcp_test_main_t * utm) +{ + vl_api_unbind_uri_t *ump; + + ump = vl_msg_api_alloc (sizeof (*ump)); + 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->uri, vec_len (utm->uri)); + vl_msg_api_send_shmem (utm->vl_input_queue, (u8 *) & ump); +} + +int +server_unbind (uri_tcp_test_main_t * utm) +{ + server_send_unbind (utm); + if (wait_for_state_change (utm, STATE_START)) + { + clib_warning ("timeout waiting for STATE_START"); + return -1; + } + return 0; +} + +void +server_test (uri_tcp_test_main_t * utm) +{ + if (application_attach (utm)) + return; + + /* Bind to uri */ + if (server_listen (utm)) + return; + + /* Enter handle event loop */ + server_handle_event_queue (utm); + + /* Cleanup */ + server_send_unbind (utm); + + application_detach (utm); + + fformat (stdout, "Test complete...\n"); +} + +static void +vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t * + mp) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + session_t *session; + + if (mp->retval) + { + clib_warning ("vpp complained about disconnect: %d", + ntohl (mp->retval)); + } + + utm->state = STATE_START; + session = pool_elt_at_index (utm->sessions, utm->connected_session_index); + if (session) + session_print_stats (utm, session); +} + +#define foreach_uri_msg \ +_(BIND_URI_REPLY, bind_uri_reply) \ +_(UNBIND_URI_REPLY, unbind_uri_reply) \ +_(ACCEPT_SESSION, accept_session) \ +_(CONNECT_SESSION_REPLY, connect_session_reply) \ +_(DISCONNECT_SESSION, disconnect_session) \ +_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \ +_(RESET_SESSION, reset_session) \ +_(APPLICATION_ATTACH_REPLY, application_attach_reply) \ +_(APPLICATION_DETACH_REPLY, application_detach_reply) \ +_(MAP_ANOTHER_SEGMENT, map_another_segment) \ + +void +uri_api_hookup (uri_tcp_test_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_uri_msg; +#undef _ +} + +int +main (int argc, char **argv) +{ + uri_tcp_test_main_t *utm = &uri_tcp_test_main; + unformat_input_t _argv, *a = &_argv; + u8 *chroot_prefix; + u8 *heap, *uri = 0; + u8 *bind_uri = (u8 *) "tcp://0.0.0.0/1234"; + u8 *connect_uri = (u8 *) "tcp://6.0.1.2/1234"; + u64 bytes_to_send = 64 << 10, mbytes; + u32 tmp; + mheap_t *h; + session_t *session; + int i; + int i_am_master = 1, drop_packets = 0, test_return_packets = 0; + + clib_mem_init (0, 256 << 20); + + heap = clib_mem_get_per_cpu_heap (); + h = mheap_header (heap); + + /* make the main heap thread-safe */ + h->flags |= MHEAP_FLAG_THREAD_SAFE; + + 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; + + clib_time_init (&utm->clib_time); + init_error_string_table (utm); + svm_fifo_segment_init (0x200000000ULL, 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)) + utm->configured_segment_size = tmp << 20; + else if (unformat (a, "segment-size %dG", &tmp)) + utm->configured_segment_size = tmp << 30; + else if (unformat (a, "master")) + i_am_master = 1; + else if (unformat (a, "slave")) + i_am_master = 0; + else if (unformat (a, "drop")) + drop_packets = 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 + { + fformat (stderr, "%s: usage [master|slave]\n"); + exit (1); + } + } + + if (uri) + { + utm->uri = format (0, "%s%c", uri, 0); + utm->connect_uri = format (0, "%s%c", uri, 0); + } + else + { + utm->uri = format (0, "%s%c", bind_uri, 0); + utm->connect_uri = format (0, "%s%c", connect_uri, 0); + } + + utm->i_am_master = i_am_master; + utm->segment_main = &svm_fifo_segment_main; + utm->drop_packets = drop_packets; + utm->test_return_packets = test_return_packets; + utm->bytes_to_send = bytes_to_send; + utm->time_to_stop = 0; + + setup_signal_handlers (); + uri_api_hookup (utm); + + if (connect_to_vpp (i_am_master ? "uri_tcp_server" : "uri_tcp_client") < 0) + { + svm_region_exit (); + fformat (stderr, "Couldn't connect to vpe, exiting...\n"); + exit (1); + } + + if (i_am_master == 0) + { + client_test (utm); + vl_client_disconnect_from_vlib (); + exit (0); + } + + /* $$$$ hack preallocation */ + for (i = 0; i < 200000; i++) + { + pool_get (utm->sessions, session); + memset (session, 0, sizeof (*session)); + } + for (i = 0; i < 200000; i++) + pool_put_index (utm->sessions, i); + + server_test (utm); + + vl_client_disconnect_from_vlib (); + exit (0); +} + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |