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_fifo_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, 1);
30 if (verbose > 2 && ss->server_rx_fifo->has_event)
32 found = session_node_lookup_fifo_event (ss->server_rx_fifo, e);
33 s = format (s, " session node event: %s\n",
34 found ? "found" : "not found");
36 s = format (s, " Tx fifo: %U", format_svm_fifo, ss->server_tx_fifo, 1);
37 if (verbose > 2 && ss->server_tx_fifo->has_event)
39 found = session_node_lookup_fifo_event (ss->server_tx_fifo, e);
40 s = format (s, " session node event: %s\n",
41 found ? "found" : "not found");
47 * Format stream session as per the following format
50 * "Connection", "Rx fifo", "Tx fifo", "Session Index"
55 format_stream_session (u8 * s, va_list * args)
57 stream_session_t *ss = va_arg (*args, stream_session_t *);
58 int verbose = va_arg (*args, int);
59 transport_proto_vft_t *tp_vft;
61 tp_vft = transport_protocol_get_vft (session_get_transport_proto (ss));
63 if (verbose == 1 && ss->session_state >= SESSION_STATE_ACCEPTING)
64 str = format (0, "%-10u%-10u%-10lld",
65 svm_fifo_max_dequeue (ss->server_rx_fifo),
66 svm_fifo_max_enqueue (ss->server_tx_fifo),
67 session_get_index (ss));
69 if (ss->session_state >= SESSION_STATE_ACCEPTING)
71 s = format (s, "%U", tp_vft->format_connection, ss->connection_index,
72 ss->thread_index, verbose);
74 s = format (s, "%v", str);
76 s = format (s, "%U", format_stream_session_fifos, ss, verbose);
78 else if (ss->session_state == SESSION_STATE_LISTENING)
80 s = format (s, "%-40U%v", tp_vft->format_listener, ss->connection_index,
83 s = format (s, "\n%U", format_stream_session_fifos, ss, verbose);
85 else if (ss->session_state == SESSION_STATE_CONNECTING)
87 s = format (s, "%-40U%v", tp_vft->format_half_open,
88 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 memset (lcl, 0, sizeof (*lcl));
111 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 session_manager_main_t *smm = &session_manager_main;
208 u8 *str = 0, one_session = 0, do_listeners = 0, sst, *app_name;
210 stream_session_t *pool, *s;
211 u32 transport_proto = ~0;
213 if (!smm->is_enabled)
215 return clib_error_return (0, "session layer is not enabled");
218 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
220 if (unformat (input, "verbose %d", &verbose))
222 else if (unformat (input, "verbose"))
224 else if (unformat (input, "listeners %U", unformat_transport_proto,
227 else if (unformat (input, "%U", unformat_stream_session, &s))
232 return clib_error_return (0, "unknown input `%U'",
233 format_unformat_error, input);
238 vlib_cli_output (vm, "%U", format_stream_session, s, 3);
244 sst = session_type_from_proto_and_ip (transport_proto, 1);
245 vlib_cli_output (vm, "%-40s%-24s%-10s", "Listener", "App", "S-idx");
247 pool_foreach (s, smm->sessions[0], ({
248 if (s->session_state != SESSION_STATE_LISTENING
249 || s->session_type != sst)
251 app_name = application_name_from_index (s->app_index);
252 vlib_cli_output (vm, "%U%-25v%-10u", format_stream_session, s, 1,
253 app_name, s->session_index);
260 for (i = 0; i < vec_len (smm->sessions); i++)
263 pool = smm->sessions[i];
267 if (pool_elts (pool))
270 vlib_cli_output (vm, "Thread %d: %d active sessions",
271 i, pool_elts (pool));
274 if (once_per_pool && verbose == 1)
276 str = format (str, "%-50s%-15s%-10s%-10s%-10s",
277 "Connection", "State", "Rx-f", "Tx-f",
279 vlib_cli_output (vm, "%v", str);
280 vec_reset_length (str);
285 pool_foreach (s, pool,
287 vec_reset_length (str);
288 str = format (str, "%U", format_stream_session, s, verbose);
289 vlib_cli_output (vm, "%v", str);
295 vlib_cli_output (vm, "Thread %d: no active sessions", i);
296 vec_reset_length (str);
304 VLIB_CLI_COMMAND (vlib_cli_show_session_command) =
306 .path = "show session",
307 .short_help = "show session [verbose [nnn]]",
308 .function = show_session_command_fn,
313 clear_session (stream_session_t * s)
315 application_t *server = application_get (s->app_index);
316 server->cb_fns.session_disconnect_callback (s);
320 static clib_error_t *
321 clear_session_command_fn (vlib_main_t * vm, unformat_input_t * input,
322 vlib_cli_command_t * cmd)
324 session_manager_main_t *smm = &session_manager_main;
325 u32 thread_index = 0, clear_all = 0;
326 u32 session_index = ~0;
327 stream_session_t **pool, *session;
329 if (!smm->is_enabled)
331 return clib_error_return (0, "session layer is not enabled");
334 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
336 if (unformat (input, "thread %d", &thread_index))
338 else if (unformat (input, "session %d", &session_index))
340 else if (unformat (input, "all"))
343 return clib_error_return (0, "unknown input `%U'",
344 format_unformat_error, input);
347 if (!clear_all && session_index == ~0)
348 return clib_error_return (0, "session <nn> required, but not set.");
350 if (session_index != ~0)
352 session = session_get_if_valid (session_index, thread_index);
354 return clib_error_return (0, "no session %d on thread %d",
355 session_index, thread_index);
356 clear_session (session);
362 vec_foreach (pool, smm->sessions)
364 pool_foreach(session, *pool, ({
365 clear_session (session);
375 VLIB_CLI_COMMAND (clear_session_command, static) =
377 .path = "clear session",
378 .short_help = "clear session thread <thread> session <index>",
379 .function = clear_session_command_fn,
383 static clib_error_t *
384 show_session_fifo_trace_command_fn (vlib_main_t * vm,
385 unformat_input_t * input,
386 vlib_cli_command_t * cmd)
388 stream_session_t *s = 0;
389 u8 is_rx = 0, *str = 0;
391 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
393 if (unformat (input, "%U", unformat_stream_session, &s))
395 else if (unformat (input, "rx"))
397 else if (unformat (input, "tx"))
400 return clib_error_return (0, "unknown input `%U'",
401 format_unformat_error, input);
406 vlib_cli_output (vm, "fifo tracing not enabled");
412 vlib_cli_output (vm, "could not find session");
417 svm_fifo_dump_trace (str, s->server_rx_fifo) :
418 svm_fifo_dump_trace (str, s->server_tx_fifo);
420 vlib_cli_output (vm, "%v", str);
425 VLIB_CLI_COMMAND (show_session_fifo_trace_command, static) =
427 .path = "show session fifo trace",
428 .short_help = "show session fifo trace <session>",
429 .function = show_session_fifo_trace_command_fn,
433 static clib_error_t *
434 session_replay_fifo_command_fn (vlib_main_t * vm, unformat_input_t * input,
435 vlib_cli_command_t * cmd)
437 stream_session_t *s = 0;
438 u8 is_rx = 0, *str = 0;
440 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
442 if (unformat (input, "%U", unformat_stream_session, &s))
444 else if (unformat (input, "rx"))
447 return clib_error_return (0, "unknown input `%U'",
448 format_unformat_error, input);
453 vlib_cli_output (vm, "fifo tracing not enabled");
459 vlib_cli_output (vm, "could not find session");
464 svm_fifo_replay (str, s->server_rx_fifo, 0, 1) :
465 svm_fifo_replay (str, s->server_tx_fifo, 0, 1);
467 vlib_cli_output (vm, "%v", str);
472 VLIB_CLI_COMMAND (session_replay_fifo_trace_command, static) =
474 .path = "session replay fifo",
475 .short_help = "session replay fifo <session>",
476 .function = session_replay_fifo_command_fn,
480 static clib_error_t *
481 session_enable_disable_fn (vlib_main_t * vm, unformat_input_t * input,
482 vlib_cli_command_t * cmd)
484 unformat_input_t _line_input, *line_input = &_line_input;
488 if (!unformat_user (input, unformat_line_input, line_input))
489 return clib_error_return (0, "expected enable | disable");
491 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
493 if (unformat (line_input, "enable"))
495 else if (unformat (line_input, "disable"))
499 error = clib_error_return (0, "unknown input `%U'",
500 format_unformat_error, line_input);
501 unformat_free (line_input);
506 unformat_free (line_input);
507 return vnet_session_enable_disable (vm, is_en);
511 VLIB_CLI_COMMAND (session_enable_disable_command, static) =
514 .short_help = "session [enable|disable]",
515 .function = session_enable_disable_fn,
520 * fd.io coding-style-patch-verification: ON
523 * eval: (c-set-style "gnu")