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 (ss->session_state >= SESSION_STATE_TRANSPORT_CLOSED)
66 s = format (s, "[%u:%u] CLOSED", ss->thread_index, ss->session_index);
72 u8 post_accept = ss->session_state >= SESSION_STATE_ACCEPTING;
73 u8 hasf = post_accept | session_tx_is_dgram (ss);
76 rxf = hasf ? svm_fifo_max_dequeue (ss->server_rx_fifo) : 0;
77 txf = hasf ? svm_fifo_max_dequeue (ss->server_tx_fifo) : 0;
78 str = format (0, "%-10u%-10u", rxf, txf);
81 if (ss->session_state >= SESSION_STATE_ACCEPTING)
83 s = format (s, "%U", format_transport_connection, tp,
84 ss->connection_index, ss->thread_index, verbose);
86 s = format (s, "%v", str);
88 s = format (s, "%U", format_session_fifos, ss, verbose);
90 else if (ss->session_state == SESSION_STATE_LISTENING)
92 s = format (s, "%U%v", format_transport_listen_connection,
93 tp, ss->connection_index, verbose, str);
95 s = format (s, "\n%U", format_session_fifos, ss, verbose);
97 else if (ss->session_state == SESSION_STATE_CONNECTING)
99 s = format (s, "%-40U%v", format_transport_half_open_connection,
100 tp, ss->connection_index, str);
104 clib_warning ("Session in state: %d!", ss->session_state);
112 unformat_stream_session_id (unformat_input_t * input, va_list * args)
114 u8 *proto = va_arg (*args, u8 *);
115 u32 *fib_index = va_arg (*args, u32 *);
116 ip46_address_t *lcl = va_arg (*args, ip46_address_t *);
117 ip46_address_t *rmt = va_arg (*args, ip46_address_t *);
118 u16 *lcl_port = va_arg (*args, u16 *);
119 u16 *rmt_port = va_arg (*args, u16 *);
120 u8 *is_ip4 = va_arg (*args, u8 *);
124 clib_memset (lcl, 0, sizeof (*lcl));
125 clib_memset (rmt, 0, sizeof (*rmt));
127 if (unformat (input, "tcp"))
129 *proto = TRANSPORT_PROTO_TCP;
131 else if (unformat (input, "udp"))
133 *proto = TRANSPORT_PROTO_UDP;
138 if (unformat (input, "vrf %u", &vrf))
141 if (unformat (input, "%U:%d->%U:%d", unformat_ip4_address, &lcl->ip4,
142 lcl_port, unformat_ip4_address, &rmt->ip4, rmt_port))
147 else if (unformat (input, "%U:%d->%U:%d", unformat_ip6_address, &lcl->ip6,
148 lcl_port, unformat_ip6_address, &rmt->ip6, rmt_port))
156 fib_protocol_t fib_proto;
157 fib_proto = *is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
158 *fib_index = fib_table_find (fib_proto, vrf);
165 unformat_stream_session (unformat_input_t * input, va_list * args)
167 stream_session_t **result = va_arg (*args, stream_session_t **);
168 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
169 ip46_address_t lcl, rmt;
174 if (!unformat (input, "%U", unformat_stream_session_id, &proto, &fib_index,
175 &lcl, &rmt, &lcl_port, &rmt_port, &is_ip4))
179 s = session_lookup_safe4 (fib_index, &lcl.ip4, &rmt.ip4,
180 clib_host_to_net_u16 (lcl_port),
181 clib_host_to_net_u16 (rmt_port), proto);
183 s = session_lookup_safe6 (fib_index, &lcl.ip6, &rmt.ip6,
184 clib_host_to_net_u16 (lcl_port),
185 clib_host_to_net_u16 (rmt_port), proto);
189 session_pool_remove_peeker (s->thread_index);
196 unformat_transport_connection (unformat_input_t * input, va_list * args)
198 transport_connection_t **result = va_arg (*args, transport_connection_t **);
199 u32 suggested_proto = va_arg (*args, u32);
200 transport_connection_t *tc;
202 ip46_address_t lcl, rmt;
203 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
206 if (!unformat (input, "%U", unformat_stream_session_id, &fib_index, &proto,
207 &lcl, &rmt, &lcl_port, &rmt_port, &is_ip4))
210 proto = (proto == (u8) ~ 0) ? suggested_proto : proto;
211 if (proto == (u8) ~ 0)
214 tc = session_lookup_connection4 (fib_index, &lcl.ip4, &rmt.ip4,
215 clib_host_to_net_u16 (lcl_port),
216 clib_host_to_net_u16 (rmt_port), proto);
218 tc = session_lookup_connection6 (fib_index, &lcl.ip6, &rmt.ip6,
219 clib_host_to_net_u16 (lcl_port),
220 clib_host_to_net_u16 (rmt_port), proto);
230 static clib_error_t *
231 show_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
232 vlib_cli_command_t * cmd)
234 u8 one_session = 0, do_listeners = 0, sst, do_elog = 0;
235 session_manager_main_t *smm = &session_manager_main;
236 u32 transport_proto = ~0, track_index;
237 stream_session_t *pool, *s;
238 transport_connection_t *tc;
239 app_worker_t *app_wrk;
243 if (!smm->is_enabled)
245 return clib_error_return (0, "session layer is not enabled");
248 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
250 if (unformat (input, "verbose %d", &verbose))
252 else if (unformat (input, "verbose"))
254 else if (unformat (input, "listeners %U", unformat_transport_proto,
257 else if (unformat (input, "%U", unformat_stream_session, &s))
261 else if (unformat (input, "elog"))
264 return clib_error_return (0, "unknown input `%U'",
265 format_unformat_error, input);
270 u8 *str = format (0, "%U", format_stream_session, s, 3);
271 if (do_elog && s->session_state != SESSION_STATE_LISTENING)
273 elog_main_t *em = &vm->elog_main;
276 tc = session_get_transport (s);
277 track_index = transport_elog_track_index (tc);
278 dt = (em->init_time.cpu - vm->clib_time.init_cpu_time)
279 * vm->clib_time.seconds_per_clock;
280 if (track_index != ~0)
281 str = format (str, " session elog:\n%U", format_elog_track, em,
284 vlib_cli_output (vm, "%v", str);
291 sst = session_type_from_proto_and_ip (transport_proto, 1);
292 vlib_cli_output (vm, "%-50s%-24s", "Listener", "App");
294 pool_foreach (s, smm->wrk[0].sessions, ({
295 if (s->session_state != SESSION_STATE_LISTENING
296 || s->session_type != sst)
298 app_wrk = app_worker_get (s->app_wrk_index);
299 app_name = application_name_from_index (app_wrk->app_index);
300 vlib_cli_output (vm, "%U%-25v%", format_stream_session, s, 0,
307 for (i = 0; i < vec_len (smm->wrk); i++)
309 u32 once_per_pool = 1, n_closed = 0;
311 pool = smm->wrk[i].sessions;
312 if (!pool_elts (pool))
314 vlib_cli_output (vm, "Thread %d: no sessions", i);
320 vlib_cli_output (vm, "Thread %d: %d sessions", i, pool_elts (pool));
324 if (once_per_pool && verbose == 1)
326 vlib_cli_output (vm, "%s%-50s%-15s%-10s%-10s", i ? "\n" : "",
327 "Connection", "State", "Rx-f", "Tx-f");
332 pool_foreach (s, pool, ({
333 if (s->session_state >= SESSION_STATE_TRANSPORT_CLOSED)
338 vlib_cli_output (vm, "%U", format_stream_session, s, verbose);
343 vlib_cli_output (vm, "Thread %d: active sessions %u", i,
344 pool_elts (pool) - n_closed);
346 vlib_cli_output (vm, "Thread %d: active sessions %u closed %u", i,
347 pool_elts (pool) - n_closed, n_closed);
354 VLIB_CLI_COMMAND (vlib_cli_show_session_command) =
356 .path = "show session",
357 .short_help = "show session [verbose [n]] [listeners <proto>] "
358 "[<session-id> [elog]]",
359 .function = show_session_command_fn,
364 clear_session (stream_session_t * s)
366 app_worker_t *server_wrk = app_worker_get (s->app_wrk_index);
367 application_t *server = application_get (server_wrk->app_index);
368 server->cb_fns.session_disconnect_callback (s);
372 static clib_error_t *
373 clear_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
374 vlib_cli_command_t * cmd)
376 session_manager_main_t *smm = &session_manager_main;
377 u32 thread_index = 0, clear_all = 0;
378 session_manager_worker_t *wrk;
379 u32 session_index = ~0;
380 stream_session_t *session;
382 if (!smm->is_enabled)
384 return clib_error_return (0, "session layer is not enabled");
387 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
389 if (unformat (input, "thread %d", &thread_index))
391 else if (unformat (input, "session %d", &session_index))
393 else if (unformat (input, "all"))
396 return clib_error_return (0, "unknown input `%U'",
397 format_unformat_error, input);
400 if (!clear_all && session_index == ~0)
401 return clib_error_return (0, "session <nn> required, but not set.");
403 if (session_index != ~0)
405 session = session_get_if_valid (session_index, thread_index);
407 return clib_error_return (0, "no session %d on thread %d",
408 session_index, thread_index);
409 clear_session (session);
415 vec_foreach (wrk, smm->wrk)
417 pool_foreach(session, wrk->sessions, ({
418 clear_session (session);
428 VLIB_CLI_COMMAND (clear_session_command, static) =
430 .path = "clear session",
431 .short_help = "clear session thread <thread> session <index>",
432 .function = clear_session_command_fn,
436 static clib_error_t *
437 show_session_fifo_trace_command_fn (vlib_main_t * vm,
438 unformat_input_t * input,
439 vlib_cli_command_t * cmd)
441 stream_session_t *s = 0;
442 u8 is_rx = 0, *str = 0;
444 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
446 if (unformat (input, "%U", unformat_stream_session, &s))
448 else if (unformat (input, "rx"))
450 else if (unformat (input, "tx"))
453 return clib_error_return (0, "unknown input `%U'",
454 format_unformat_error, input);
459 vlib_cli_output (vm, "fifo tracing not enabled");
465 vlib_cli_output (vm, "could not find session");
470 svm_fifo_dump_trace (str, s->server_rx_fifo) :
471 svm_fifo_dump_trace (str, s->server_tx_fifo);
473 vlib_cli_output (vm, "%v", str);
478 VLIB_CLI_COMMAND (show_session_fifo_trace_command, static) =
480 .path = "show session fifo trace",
481 .short_help = "show session fifo trace <session>",
482 .function = show_session_fifo_trace_command_fn,
486 static clib_error_t *
487 session_replay_fifo_command_fn (vlib_main_t * vm, unformat_input_t * input,
488 vlib_cli_command_t * cmd)
490 stream_session_t *s = 0;
491 u8 is_rx = 0, *str = 0;
493 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
495 if (unformat (input, "%U", unformat_stream_session, &s))
497 else if (unformat (input, "rx"))
500 return clib_error_return (0, "unknown input `%U'",
501 format_unformat_error, input);
506 vlib_cli_output (vm, "fifo tracing not enabled");
512 vlib_cli_output (vm, "could not find session");
517 svm_fifo_replay (str, s->server_rx_fifo, 0, 1) :
518 svm_fifo_replay (str, s->server_tx_fifo, 0, 1);
520 vlib_cli_output (vm, "%v", str);
525 VLIB_CLI_COMMAND (session_replay_fifo_trace_command, static) =
527 .path = "session replay fifo",
528 .short_help = "session replay fifo <session>",
529 .function = session_replay_fifo_command_fn,
533 static clib_error_t *
534 session_enable_disable_fn (vlib_main_t * vm, unformat_input_t * input,
535 vlib_cli_command_t * cmd)
537 unformat_input_t _line_input, *line_input = &_line_input;
541 if (!unformat_user (input, unformat_line_input, line_input))
542 return clib_error_return (0, "expected enable | disable");
544 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
546 if (unformat (line_input, "enable"))
548 else if (unformat (line_input, "disable"))
552 error = clib_error_return (0, "unknown input `%U'",
553 format_unformat_error, line_input);
554 unformat_free (line_input);
559 unformat_free (line_input);
560 return vnet_session_enable_disable (vm, is_en);
564 VLIB_CLI_COMMAND (session_enable_disable_command, static) =
567 .short_help = "session [enable|disable]",
568 .function = session_enable_disable_fn,
573 * fd.io coding-style-patch-verification: ON
576 * eval: (c-set-style "gnu")