2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #include <vnet/session/application.h>
16 #include <vnet/session/session.h>
19 format_session_fifos (u8 * s, va_list * args)
21 stream_session_t *ss = va_arg (*args, stream_session_t *);
22 int verbose = va_arg (*args, int);
23 session_event_t _e, *e = &_e;
26 if (!ss->server_rx_fifo || !ss->server_tx_fifo)
29 s = format (s, " Rx fifo: %U", format_svm_fifo, ss->server_rx_fifo,
31 if (verbose > 2 && ss->server_rx_fifo->has_event)
33 found = session_node_lookup_fifo_event (ss->server_rx_fifo, e);
34 s = format (s, " session node event: %s\n",
35 found ? "found" : "not found");
37 s = format (s, " Tx fifo: %U", format_svm_fifo, ss->server_tx_fifo,
39 if (verbose > 2 && ss->server_tx_fifo->has_event)
41 found = session_node_lookup_fifo_event (ss->server_tx_fifo, e);
42 s = format (s, " session node event: %s\n",
43 found ? "found" : "not found");
49 * Format stream session as per the following format
52 * "Connection", "Rx fifo", "Tx fifo", "Session Index"
57 format_stream_session (u8 * s, va_list * args)
59 stream_session_t *ss = va_arg (*args, stream_session_t *);
60 int verbose = va_arg (*args, int);
61 u32 tp = session_get_transport_proto (ss);
64 if (verbose == 1 && ss->session_state >= SESSION_STATE_ACCEPTING)
65 str = format (0, "%-10u%-10u",
66 svm_fifo_max_dequeue (ss->server_rx_fifo),
67 svm_fifo_max_dequeue (ss->server_tx_fifo));
69 if (ss->session_state >= SESSION_STATE_ACCEPTING)
71 s = format (s, "%U", format_transport_connection, tp,
72 ss->connection_index, ss->thread_index, verbose);
74 s = format (s, "%v", str);
76 s = format (s, "%U", format_session_fifos, ss, verbose);
78 else if (ss->session_state == SESSION_STATE_LISTENING)
80 s = format (s, "%-40U%v", format_transport_listen_connection,
81 tp, ss->connection_index, str);
83 s = format (s, "\n%U", format_session_fifos, ss, verbose);
85 else if (ss->session_state == SESSION_STATE_CONNECTING)
87 s = format (s, "%-40U%v", format_transport_half_open_connection,
88 tp, ss->connection_index, str);
92 clib_warning ("Session in state: %d!", ss->session_state);
100 unformat_stream_session_id (unformat_input_t * input, va_list * args)
102 u8 *proto = va_arg (*args, u8 *);
103 u32 *fib_index = va_arg (*args, u32 *);
104 ip46_address_t *lcl = va_arg (*args, ip46_address_t *);
105 ip46_address_t *rmt = va_arg (*args, ip46_address_t *);
106 u16 *lcl_port = va_arg (*args, u16 *);
107 u16 *rmt_port = va_arg (*args, u16 *);
108 u8 *is_ip4 = va_arg (*args, u8 *);
112 clib_memset (lcl, 0, sizeof (*lcl));
113 clib_memset (rmt, 0, sizeof (*rmt));
115 if (unformat (input, "tcp"))
117 *proto = TRANSPORT_PROTO_TCP;
119 else if (unformat (input, "udp"))
121 *proto = TRANSPORT_PROTO_UDP;
126 if (unformat (input, "vrf %u", &vrf))
129 if (unformat (input, "%U:%d->%U:%d", unformat_ip4_address, &lcl->ip4,
130 lcl_port, unformat_ip4_address, &rmt->ip4, rmt_port))
135 else if (unformat (input, "%U:%d->%U:%d", unformat_ip6_address, &lcl->ip6,
136 lcl_port, unformat_ip6_address, &rmt->ip6, rmt_port))
144 fib_protocol_t fib_proto;
145 fib_proto = *is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
146 *fib_index = fib_table_find (fib_proto, vrf);
153 unformat_stream_session (unformat_input_t * input, va_list * args)
155 stream_session_t **result = va_arg (*args, stream_session_t **);
156 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
157 ip46_address_t lcl, rmt;
162 if (!unformat (input, "%U", unformat_stream_session_id, &proto, &fib_index,
163 &lcl, &rmt, &lcl_port, &rmt_port, &is_ip4))
167 s = session_lookup_safe4 (fib_index, &lcl.ip4, &rmt.ip4,
168 clib_host_to_net_u16 (lcl_port),
169 clib_host_to_net_u16 (rmt_port), proto);
171 s = session_lookup_safe6 (fib_index, &lcl.ip6, &rmt.ip6,
172 clib_host_to_net_u16 (lcl_port),
173 clib_host_to_net_u16 (rmt_port), proto);
177 session_pool_remove_peeker (s->thread_index);
184 unformat_transport_connection (unformat_input_t * input, va_list * args)
186 transport_connection_t **result = va_arg (*args, transport_connection_t **);
187 u32 suggested_proto = va_arg (*args, u32);
188 transport_connection_t *tc;
190 ip46_address_t lcl, rmt;
191 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
194 if (!unformat (input, "%U", unformat_stream_session_id, &fib_index, &proto,
195 &lcl, &rmt, &lcl_port, &rmt_port, &is_ip4))
198 proto = (proto == (u8) ~ 0) ? suggested_proto : proto;
199 if (proto == (u8) ~ 0)
202 tc = session_lookup_connection4 (fib_index, &lcl.ip4, &rmt.ip4,
203 clib_host_to_net_u16 (lcl_port),
204 clib_host_to_net_u16 (rmt_port), proto);
206 tc = session_lookup_connection6 (fib_index, &lcl.ip6, &rmt.ip6,
207 clib_host_to_net_u16 (lcl_port),
208 clib_host_to_net_u16 (rmt_port), proto);
218 static clib_error_t *
219 show_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
220 vlib_cli_command_t * cmd)
222 u8 *str = 0, one_session = 0, do_listeners = 0, sst, do_elog = 0;
223 session_manager_main_t *smm = &session_manager_main;
224 u32 transport_proto = ~0, track_index;
225 stream_session_t *pool, *s;
226 transport_connection_t *tc;
227 app_worker_t *app_wrk;
231 if (!smm->is_enabled)
233 return clib_error_return (0, "session layer is not enabled");
236 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
238 if (unformat (input, "verbose %d", &verbose))
240 else if (unformat (input, "verbose"))
242 else if (unformat (input, "listeners %U", unformat_transport_proto,
245 else if (unformat (input, "%U", unformat_stream_session, &s))
249 else if (unformat (input, "elog"))
252 return clib_error_return (0, "unknown input `%U'",
253 format_unformat_error, input);
258 str = format (0, "%U", format_stream_session, s, 3);
259 if (do_elog && s->session_state != SESSION_STATE_LISTENING)
261 elog_main_t *em = &vm->elog_main;
264 tc = session_get_transport (s);
265 track_index = transport_elog_track_index (tc);
266 dt = (em->init_time.cpu - vm->clib_time.init_cpu_time)
267 * vm->clib_time.seconds_per_clock;
268 if (track_index != ~0)
269 str = format (str, " session elog:\n%U", format_elog_track, em,
272 vlib_cli_output (vm, "%v", str);
278 sst = session_type_from_proto_and_ip (transport_proto, 1);
279 vlib_cli_output (vm, "%-40s%-24s", "Listener", "App");
281 pool_foreach (s, smm->wrk[0].sessions, ({
282 if (s->session_state != SESSION_STATE_LISTENING
283 || s->session_type != sst)
285 app_wrk = app_worker_get (s->app_wrk_index);
286 app_name = application_name_from_index (app_wrk->app_index);
287 vlib_cli_output (vm, "%U%-25v%", format_stream_session, s, 1,
294 for (i = 0; i < vec_len (smm->wrk); i++)
297 pool = smm->wrk[i].sessions;
301 if (pool_elts (pool))
304 vlib_cli_output (vm, "Thread %d: %d active sessions",
305 i, pool_elts (pool));
308 if (once_per_pool && verbose == 1)
310 str = format (str, "%-50s%-15s%-10s%-10s",
311 "Connection", "State", "Rx-f", "Tx-f");
312 vlib_cli_output (vm, "%v", str);
313 vec_reset_length (str);
318 pool_foreach (s, pool,
320 vec_reset_length (str);
321 str = format (str, "%U", format_stream_session, s, verbose);
322 vlib_cli_output (vm, "%v", str);
328 vlib_cli_output (vm, "Thread %d: no active sessions", i);
329 vec_reset_length (str);
337 VLIB_CLI_COMMAND (vlib_cli_show_session_command) =
339 .path = "show session",
340 .short_help = "show session [verbose [nnn]]",
341 .function = show_session_command_fn,
346 clear_session (stream_session_t * s)
348 app_worker_t *server_wrk = app_worker_get (s->app_wrk_index);
349 application_t *server = application_get (server_wrk->app_index);
350 server->cb_fns.session_disconnect_callback (s);
354 static clib_error_t *
355 clear_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
356 vlib_cli_command_t * cmd)
358 session_manager_main_t *smm = &session_manager_main;
359 u32 thread_index = 0, clear_all = 0;
360 session_manager_worker_t *wrk;
361 u32 session_index = ~0;
362 stream_session_t *session;
364 if (!smm->is_enabled)
366 return clib_error_return (0, "session layer is not enabled");
369 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
371 if (unformat (input, "thread %d", &thread_index))
373 else if (unformat (input, "session %d", &session_index))
375 else if (unformat (input, "all"))
378 return clib_error_return (0, "unknown input `%U'",
379 format_unformat_error, input);
382 if (!clear_all && session_index == ~0)
383 return clib_error_return (0, "session <nn> required, but not set.");
385 if (session_index != ~0)
387 session = session_get_if_valid (session_index, thread_index);
389 return clib_error_return (0, "no session %d on thread %d",
390 session_index, thread_index);
391 clear_session (session);
397 vec_foreach (wrk, smm->wrk)
399 pool_foreach(session, wrk->sessions, ({
400 clear_session (session);
410 VLIB_CLI_COMMAND (clear_session_command, static) =
412 .path = "clear session",
413 .short_help = "clear session thread <thread> session <index>",
414 .function = clear_session_command_fn,
418 static clib_error_t *
419 show_session_fifo_trace_command_fn (vlib_main_t * vm,
420 unformat_input_t * input,
421 vlib_cli_command_t * cmd)
423 stream_session_t *s = 0;
424 u8 is_rx = 0, *str = 0;
426 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
428 if (unformat (input, "%U", unformat_stream_session, &s))
430 else if (unformat (input, "rx"))
432 else if (unformat (input, "tx"))
435 return clib_error_return (0, "unknown input `%U'",
436 format_unformat_error, input);
441 vlib_cli_output (vm, "fifo tracing not enabled");
447 vlib_cli_output (vm, "could not find session");
452 svm_fifo_dump_trace (str, s->server_rx_fifo) :
453 svm_fifo_dump_trace (str, s->server_tx_fifo);
455 vlib_cli_output (vm, "%v", str);
460 VLIB_CLI_COMMAND (show_session_fifo_trace_command, static) =
462 .path = "show session fifo trace",
463 .short_help = "show session fifo trace <session>",
464 .function = show_session_fifo_trace_command_fn,
468 static clib_error_t *
469 session_replay_fifo_command_fn (vlib_main_t * vm, unformat_input_t * input,
470 vlib_cli_command_t * cmd)
472 stream_session_t *s = 0;
473 u8 is_rx = 0, *str = 0;
475 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
477 if (unformat (input, "%U", unformat_stream_session, &s))
479 else if (unformat (input, "rx"))
482 return clib_error_return (0, "unknown input `%U'",
483 format_unformat_error, input);
488 vlib_cli_output (vm, "fifo tracing not enabled");
494 vlib_cli_output (vm, "could not find session");
499 svm_fifo_replay (str, s->server_rx_fifo, 0, 1) :
500 svm_fifo_replay (str, s->server_tx_fifo, 0, 1);
502 vlib_cli_output (vm, "%v", str);
507 VLIB_CLI_COMMAND (session_replay_fifo_trace_command, static) =
509 .path = "session replay fifo",
510 .short_help = "session replay fifo <session>",
511 .function = session_replay_fifo_command_fn,
515 static clib_error_t *
516 session_enable_disable_fn (vlib_main_t * vm, unformat_input_t * input,
517 vlib_cli_command_t * cmd)
519 unformat_input_t _line_input, *line_input = &_line_input;
523 if (!unformat_user (input, unformat_line_input, line_input))
524 return clib_error_return (0, "expected enable | disable");
526 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
528 if (unformat (line_input, "enable"))
530 else if (unformat (line_input, "disable"))
534 error = clib_error_return (0, "unknown input `%U'",
535 format_unformat_error, line_input);
536 unformat_free (line_input);
541 unformat_free (line_input);
542 return vnet_session_enable_disable (vm, is_en);
546 VLIB_CLI_COMMAND (session_enable_disable_command, static) =
549 .short_help = "session [enable|disable]",
550 .function = session_enable_disable_fn,
555 * fd.io coding-style-patch-verification: ON
558 * eval: (c-set-style "gnu")