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 ip46_address_t *lcl = va_arg (*args, ip46_address_t *);
104 ip46_address_t *rmt = va_arg (*args, ip46_address_t *);
105 u16 *lcl_port = va_arg (*args, u16 *);
106 u16 *rmt_port = va_arg (*args, u16 *);
107 u8 *is_ip4 = va_arg (*args, u8 *);
110 clib_memset (lcl, 0, sizeof (*lcl));
111 clib_memset (rmt, 0, sizeof (*rmt));
113 if (unformat (input, "tcp"))
115 *proto = TRANSPORT_PROTO_TCP;
117 if (unformat (input, "udp"))
119 *proto = TRANSPORT_PROTO_UDP;
121 if (unformat (input, "%U:%d->%U:%d", unformat_ip4_address, &lcl->ip4,
122 lcl_port, unformat_ip4_address, &rmt->ip4, rmt_port))
127 else if (unformat (input, "%U:%d->%U:%d", unformat_ip6_address, &lcl->ip6,
128 lcl_port, unformat_ip6_address, &rmt->ip6, rmt_port))
138 unformat_stream_session (unformat_input_t * input, va_list * args)
140 stream_session_t **result = va_arg (*args, stream_session_t **);
143 ip46_address_t lcl, rmt;
144 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
147 if (!unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt,
148 &lcl_port, &rmt_port, &is_ip4))
152 s = session_lookup_safe4 (fib_index, &lcl.ip4, &rmt.ip4,
153 clib_host_to_net_u16 (lcl_port),
154 clib_host_to_net_u16 (rmt_port), proto);
156 s = session_lookup_safe6 (fib_index, &lcl.ip6, &rmt.ip6,
157 clib_host_to_net_u16 (lcl_port),
158 clib_host_to_net_u16 (rmt_port), proto);
162 session_pool_remove_peeker (s->thread_index);
169 unformat_transport_connection (unformat_input_t * input, va_list * args)
171 transport_connection_t **result = va_arg (*args, transport_connection_t **);
172 u32 suggested_proto = va_arg (*args, u32);
173 transport_connection_t *tc;
175 ip46_address_t lcl, rmt;
176 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
179 if (!unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt,
180 &lcl_port, &rmt_port, &is_ip4))
183 proto = (proto == (u8) ~ 0) ? suggested_proto : proto;
184 if (proto == (u8) ~ 0)
187 tc = session_lookup_connection4 (fib_index, &lcl.ip4, &rmt.ip4,
188 clib_host_to_net_u16 (lcl_port),
189 clib_host_to_net_u16 (rmt_port), proto);
191 tc = session_lookup_connection6 (fib_index, &lcl.ip6, &rmt.ip6,
192 clib_host_to_net_u16 (lcl_port),
193 clib_host_to_net_u16 (rmt_port), proto);
203 static clib_error_t *
204 show_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
205 vlib_cli_command_t * cmd)
207 u8 *str = 0, one_session = 0, do_listeners = 0, sst, do_elog = 0;
208 session_manager_main_t *smm = &session_manager_main;
209 u32 transport_proto = ~0, track_index;
210 stream_session_t *pool, *s;
211 transport_connection_t *tc;
212 app_worker_t *app_wrk;
216 if (!smm->is_enabled)
218 return clib_error_return (0, "session layer is not enabled");
221 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
223 if (unformat (input, "verbose %d", &verbose))
225 else if (unformat (input, "verbose"))
227 else if (unformat (input, "listeners %U", unformat_transport_proto,
230 else if (unformat (input, "%U", unformat_stream_session, &s))
234 else if (unformat (input, "elog"))
237 return clib_error_return (0, "unknown input `%U'",
238 format_unformat_error, input);
243 str = format (0, "%U", format_stream_session, s, 3);
244 if (do_elog && s->session_state != SESSION_STATE_LISTENING)
246 elog_main_t *em = &vm->elog_main;
249 tc = session_get_transport (s);
250 track_index = transport_elog_track_index (tc);
251 dt = (em->init_time.cpu - vm->clib_time.init_cpu_time)
252 * vm->clib_time.seconds_per_clock;
253 if (track_index != ~0)
254 str = format (str, " session elog:\n%U", format_elog_track, em,
257 vlib_cli_output (vm, "%v", str);
263 sst = session_type_from_proto_and_ip (transport_proto, 1);
264 vlib_cli_output (vm, "%-40s%-24s", "Listener", "App");
266 pool_foreach (s, smm->wrk[0].sessions, ({
267 if (s->session_state != SESSION_STATE_LISTENING
268 || s->session_type != sst)
270 app_wrk = app_worker_get (s->app_wrk_index);
271 app_name = application_name_from_index (app_wrk->app_index);
272 vlib_cli_output (vm, "%U%-25v%", format_stream_session, s, 1,
279 for (i = 0; i < vec_len (smm->wrk); i++)
282 pool = smm->wrk[i].sessions;
286 if (pool_elts (pool))
289 vlib_cli_output (vm, "Thread %d: %d active sessions",
290 i, pool_elts (pool));
293 if (once_per_pool && verbose == 1)
295 str = format (str, "%-50s%-15s%-10s%-10s",
296 "Connection", "State", "Rx-f", "Tx-f");
297 vlib_cli_output (vm, "%v", str);
298 vec_reset_length (str);
303 pool_foreach (s, pool,
305 vec_reset_length (str);
306 str = format (str, "%U", format_stream_session, s, verbose);
307 vlib_cli_output (vm, "%v", str);
313 vlib_cli_output (vm, "Thread %d: no active sessions", i);
314 vec_reset_length (str);
322 VLIB_CLI_COMMAND (vlib_cli_show_session_command) =
324 .path = "show session",
325 .short_help = "show session [verbose [nnn]]",
326 .function = show_session_command_fn,
331 clear_session (stream_session_t * s)
333 app_worker_t *server_wrk = app_worker_get (s->app_wrk_index);
334 application_t *server = application_get (server_wrk->app_index);
335 server->cb_fns.session_disconnect_callback (s);
339 static clib_error_t *
340 clear_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
341 vlib_cli_command_t * cmd)
343 session_manager_main_t *smm = &session_manager_main;
344 u32 thread_index = 0, clear_all = 0;
345 session_manager_worker_t *wrk;
346 u32 session_index = ~0;
347 stream_session_t *session;
349 if (!smm->is_enabled)
351 return clib_error_return (0, "session layer is not enabled");
354 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
356 if (unformat (input, "thread %d", &thread_index))
358 else if (unformat (input, "session %d", &session_index))
360 else if (unformat (input, "all"))
363 return clib_error_return (0, "unknown input `%U'",
364 format_unformat_error, input);
367 if (!clear_all && session_index == ~0)
368 return clib_error_return (0, "session <nn> required, but not set.");
370 if (session_index != ~0)
372 session = session_get_if_valid (session_index, thread_index);
374 return clib_error_return (0, "no session %d on thread %d",
375 session_index, thread_index);
376 clear_session (session);
382 vec_foreach (wrk, smm->wrk)
384 pool_foreach(session, wrk->sessions, ({
385 clear_session (session);
395 VLIB_CLI_COMMAND (clear_session_command, static) =
397 .path = "clear session",
398 .short_help = "clear session thread <thread> session <index>",
399 .function = clear_session_command_fn,
403 static clib_error_t *
404 show_session_fifo_trace_command_fn (vlib_main_t * vm,
405 unformat_input_t * input,
406 vlib_cli_command_t * cmd)
408 stream_session_t *s = 0;
409 u8 is_rx = 0, *str = 0;
411 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
413 if (unformat (input, "%U", unformat_stream_session, &s))
415 else if (unformat (input, "rx"))
417 else if (unformat (input, "tx"))
420 return clib_error_return (0, "unknown input `%U'",
421 format_unformat_error, input);
426 vlib_cli_output (vm, "fifo tracing not enabled");
432 vlib_cli_output (vm, "could not find session");
437 svm_fifo_dump_trace (str, s->server_rx_fifo) :
438 svm_fifo_dump_trace (str, s->server_tx_fifo);
440 vlib_cli_output (vm, "%v", str);
445 VLIB_CLI_COMMAND (show_session_fifo_trace_command, static) =
447 .path = "show session fifo trace",
448 .short_help = "show session fifo trace <session>",
449 .function = show_session_fifo_trace_command_fn,
453 static clib_error_t *
454 session_replay_fifo_command_fn (vlib_main_t * vm, unformat_input_t * input,
455 vlib_cli_command_t * cmd)
457 stream_session_t *s = 0;
458 u8 is_rx = 0, *str = 0;
460 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
462 if (unformat (input, "%U", unformat_stream_session, &s))
464 else if (unformat (input, "rx"))
467 return clib_error_return (0, "unknown input `%U'",
468 format_unformat_error, input);
473 vlib_cli_output (vm, "fifo tracing not enabled");
479 vlib_cli_output (vm, "could not find session");
484 svm_fifo_replay (str, s->server_rx_fifo, 0, 1) :
485 svm_fifo_replay (str, s->server_tx_fifo, 0, 1);
487 vlib_cli_output (vm, "%v", str);
492 VLIB_CLI_COMMAND (session_replay_fifo_trace_command, static) =
494 .path = "session replay fifo",
495 .short_help = "session replay fifo <session>",
496 .function = session_replay_fifo_command_fn,
500 static clib_error_t *
501 session_enable_disable_fn (vlib_main_t * vm, unformat_input_t * input,
502 vlib_cli_command_t * cmd)
504 unformat_input_t _line_input, *line_input = &_line_input;
508 if (!unformat_user (input, unformat_line_input, line_input))
509 return clib_error_return (0, "expected enable | disable");
511 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
513 if (unformat (line_input, "enable"))
515 else if (unformat (line_input, "disable"))
519 error = clib_error_return (0, "unknown input `%U'",
520 format_unformat_error, line_input);
521 unformat_free (line_input);
526 unformat_free (line_input);
527 return vnet_session_enable_disable (vm, is_en);
531 VLIB_CLI_COMMAND (session_enable_disable_command, static) =
534 .short_help = "session [enable|disable]",
535 .function = session_enable_disable_fn,
540 * fd.io coding-style-patch-verification: ON
543 * eval: (c-set-style "gnu")