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_stream_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 transport_proto_vft_t *tp_vft;
63 tp_vft = transport_protocol_get_vft (session_get_transport_proto (ss));
65 if (verbose == 1 && ss->session_state >= SESSION_STATE_ACCEPTING)
66 str = format (0, "%-10u%-10u%-10lld",
67 svm_fifo_max_dequeue (ss->server_rx_fifo),
68 svm_fifo_max_enqueue (ss->server_tx_fifo),
69 session_get_index (ss));
71 if (ss->session_state >= SESSION_STATE_ACCEPTING)
73 s = format (s, "%U", tp_vft->format_connection, ss->connection_index,
74 ss->thread_index, verbose);
76 s = format (s, "%v", str);
78 s = format (s, "%U", format_stream_session_fifos, ss, verbose);
80 else if (ss->session_state == SESSION_STATE_LISTENING)
82 s = format (s, "%-40U%v", tp_vft->format_listener, ss->connection_index,
85 s = format (s, "\n%U", format_stream_session_fifos, ss, verbose);
87 else if (ss->session_state == SESSION_STATE_CONNECTING)
89 s = format (s, "%-40U%v", tp_vft->format_half_open,
90 ss->connection_index, str);
94 clib_warning ("Session in state: %d!", ss->session_state);
102 unformat_stream_session_id (unformat_input_t * input, va_list * args)
104 u8 *proto = va_arg (*args, u8 *);
105 ip46_address_t *lcl = va_arg (*args, ip46_address_t *);
106 ip46_address_t *rmt = va_arg (*args, ip46_address_t *);
107 u16 *lcl_port = va_arg (*args, u16 *);
108 u16 *rmt_port = va_arg (*args, u16 *);
109 u8 *is_ip4 = va_arg (*args, u8 *);
112 memset (lcl, 0, sizeof (*lcl));
113 memset (rmt, 0, sizeof (*rmt));
115 if (unformat (input, "tcp"))
117 *proto = TRANSPORT_PROTO_TCP;
119 if (unformat (input, "udp"))
121 *proto = TRANSPORT_PROTO_UDP;
123 if (unformat (input, "%U:%d->%U:%d", unformat_ip4_address, &lcl->ip4,
124 lcl_port, unformat_ip4_address, &rmt->ip4, rmt_port))
129 else if (unformat (input, "%U:%d->%U:%d", unformat_ip6_address, &lcl->ip6,
130 lcl_port, unformat_ip6_address, &rmt->ip6, rmt_port))
140 unformat_stream_session (unformat_input_t * input, va_list * args)
142 stream_session_t **result = va_arg (*args, stream_session_t **);
145 ip46_address_t lcl, rmt;
146 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
149 if (!unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt,
150 &lcl_port, &rmt_port, &is_ip4))
154 s = session_lookup_safe4 (fib_index, &lcl.ip4, &rmt.ip4,
155 clib_host_to_net_u16 (lcl_port),
156 clib_host_to_net_u16 (rmt_port), proto);
158 s = session_lookup_safe6 (fib_index, &lcl.ip6, &rmt.ip6,
159 clib_host_to_net_u16 (lcl_port),
160 clib_host_to_net_u16 (rmt_port), proto);
164 session_pool_remove_peeker (s->thread_index);
171 unformat_transport_connection (unformat_input_t * input, va_list * args)
173 transport_connection_t **result = va_arg (*args, transport_connection_t **);
174 u32 suggested_proto = va_arg (*args, u32);
175 transport_connection_t *tc;
177 ip46_address_t lcl, rmt;
178 u32 lcl_port = 0, rmt_port = 0, fib_index = 0;
181 if (!unformat (input, "%U", unformat_stream_session_id, &proto, &lcl, &rmt,
182 &lcl_port, &rmt_port, &is_ip4))
185 proto = (proto == (u8) ~ 0) ? suggested_proto : proto;
186 if (proto == (u8) ~ 0)
189 tc = session_lookup_connection4 (fib_index, &lcl.ip4, &rmt.ip4,
190 clib_host_to_net_u16 (lcl_port),
191 clib_host_to_net_u16 (rmt_port), proto);
193 tc = session_lookup_connection6 (fib_index, &lcl.ip6, &rmt.ip6,
194 clib_host_to_net_u16 (lcl_port),
195 clib_host_to_net_u16 (rmt_port), proto);
205 static clib_error_t *
206 show_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
207 vlib_cli_command_t * cmd)
209 session_manager_main_t *smm = &session_manager_main;
210 u8 *str = 0, one_session = 0, do_listeners = 0, sst, *app_name;
212 stream_session_t *pool, *s;
213 u32 transport_proto = ~0;
215 if (!smm->is_enabled)
217 return clib_error_return (0, "session layer is not enabled");
220 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
222 if (unformat (input, "verbose %d", &verbose))
224 else if (unformat (input, "verbose"))
226 else if (unformat (input, "listeners %U", unformat_transport_proto,
229 else if (unformat (input, "%U", unformat_stream_session, &s))
234 return clib_error_return (0, "unknown input `%U'",
235 format_unformat_error, input);
240 vlib_cli_output (vm, "%U", format_stream_session, s, 3);
246 sst = session_type_from_proto_and_ip (transport_proto, 1);
247 vlib_cli_output (vm, "%-40s%-24s%-10s", "Listener", "App", "S-idx");
249 pool_foreach (s, smm->sessions[0], ({
250 if (s->session_state != SESSION_STATE_LISTENING
251 || s->session_type != sst)
253 app_name = application_name_from_index (s->app_wrk_index);
254 vlib_cli_output (vm, "%U%-25v%-10u", format_stream_session, s, 1,
255 app_name, s->session_index);
262 for (i = 0; i < vec_len (smm->sessions); i++)
265 pool = smm->sessions[i];
269 if (pool_elts (pool))
272 vlib_cli_output (vm, "Thread %d: %d active sessions",
273 i, pool_elts (pool));
276 if (once_per_pool && verbose == 1)
278 str = format (str, "%-50s%-15s%-10s%-10s%-10s",
279 "Connection", "State", "Rx-f", "Tx-f",
281 vlib_cli_output (vm, "%v", str);
282 vec_reset_length (str);
287 pool_foreach (s, pool,
289 vec_reset_length (str);
290 str = format (str, "%U", format_stream_session, s, verbose);
291 vlib_cli_output (vm, "%v", str);
297 vlib_cli_output (vm, "Thread %d: no active sessions", i);
298 vec_reset_length (str);
306 VLIB_CLI_COMMAND (vlib_cli_show_session_command) =
308 .path = "show session",
309 .short_help = "show session [verbose [nnn]]",
310 .function = show_session_command_fn,
315 clear_session (stream_session_t * s)
317 app_worker_t *server_wrk = app_worker_get (s->app_wrk_index);
318 application_t *server = application_get (server_wrk->app_index);
319 server->cb_fns.session_disconnect_callback (s);
323 static clib_error_t *
324 clear_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
325 vlib_cli_command_t * cmd)
327 session_manager_main_t *smm = &session_manager_main;
328 u32 thread_index = 0, clear_all = 0;
329 u32 session_index = ~0;
330 stream_session_t **pool, *session;
332 if (!smm->is_enabled)
334 return clib_error_return (0, "session layer is not enabled");
337 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
339 if (unformat (input, "thread %d", &thread_index))
341 else if (unformat (input, "session %d", &session_index))
343 else if (unformat (input, "all"))
346 return clib_error_return (0, "unknown input `%U'",
347 format_unformat_error, input);
350 if (!clear_all && session_index == ~0)
351 return clib_error_return (0, "session <nn> required, but not set.");
353 if (session_index != ~0)
355 session = session_get_if_valid (session_index, thread_index);
357 return clib_error_return (0, "no session %d on thread %d",
358 session_index, thread_index);
359 clear_session (session);
365 vec_foreach (pool, smm->sessions)
367 pool_foreach(session, *pool, ({
368 clear_session (session);
378 VLIB_CLI_COMMAND (clear_session_command, static) =
380 .path = "clear session",
381 .short_help = "clear session thread <thread> session <index>",
382 .function = clear_session_command_fn,
386 static clib_error_t *
387 show_session_fifo_trace_command_fn (vlib_main_t * vm,
388 unformat_input_t * input,
389 vlib_cli_command_t * cmd)
391 stream_session_t *s = 0;
392 u8 is_rx = 0, *str = 0;
394 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
396 if (unformat (input, "%U", unformat_stream_session, &s))
398 else if (unformat (input, "rx"))
400 else if (unformat (input, "tx"))
403 return clib_error_return (0, "unknown input `%U'",
404 format_unformat_error, input);
409 vlib_cli_output (vm, "fifo tracing not enabled");
415 vlib_cli_output (vm, "could not find session");
420 svm_fifo_dump_trace (str, s->server_rx_fifo) :
421 svm_fifo_dump_trace (str, s->server_tx_fifo);
423 vlib_cli_output (vm, "%v", str);
428 VLIB_CLI_COMMAND (show_session_fifo_trace_command, static) =
430 .path = "show session fifo trace",
431 .short_help = "show session fifo trace <session>",
432 .function = show_session_fifo_trace_command_fn,
436 static clib_error_t *
437 session_replay_fifo_command_fn (vlib_main_t * vm, unformat_input_t * input,
438 vlib_cli_command_t * cmd)
440 stream_session_t *s = 0;
441 u8 is_rx = 0, *str = 0;
443 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
445 if (unformat (input, "%U", unformat_stream_session, &s))
447 else if (unformat (input, "rx"))
450 return clib_error_return (0, "unknown input `%U'",
451 format_unformat_error, input);
456 vlib_cli_output (vm, "fifo tracing not enabled");
462 vlib_cli_output (vm, "could not find session");
467 svm_fifo_replay (str, s->server_rx_fifo, 0, 1) :
468 svm_fifo_replay (str, s->server_tx_fifo, 0, 1);
470 vlib_cli_output (vm, "%v", str);
475 VLIB_CLI_COMMAND (session_replay_fifo_trace_command, static) =
477 .path = "session replay fifo",
478 .short_help = "session replay fifo <session>",
479 .function = session_replay_fifo_command_fn,
483 static clib_error_t *
484 session_enable_disable_fn (vlib_main_t * vm, unformat_input_t * input,
485 vlib_cli_command_t * cmd)
487 unformat_input_t _line_input, *line_input = &_line_input;
491 if (!unformat_user (input, unformat_line_input, line_input))
492 return clib_error_return (0, "expected enable | disable");
494 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
496 if (unformat (line_input, "enable"))
498 else if (unformat (line_input, "disable"))
502 error = clib_error_return (0, "unknown input `%U'",
503 format_unformat_error, line_input);
504 unformat_free (line_input);
509 unformat_free (line_input);
510 return vnet_session_enable_disable (vm, is_en);
514 VLIB_CLI_COMMAND (session_enable_disable_command, static) =
517 .short_help = "session [enable|disable]",
518 .function = session_enable_disable_fn,
523 * fd.io coding-style-patch-verification: ON
526 * eval: (c-set-style "gnu")