2 * Copyright (c) 2015 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.
16 * cli.c: command line interface
18 * Copyright (c) 2008 Eliot Dresselhaus
20 * Permission is hereby granted, free of charge, to any person obtaining
21 * a copy of this software and associated documentation files (the
22 * "Software"), to deal in the Software without restriction, including
23 * without limitation the rights to use, copy, modify, merge, publish,
24 * distribute, sublicense, and/or sell copies of the Software, and to
25 * permit persons to whom the Software is furnished to do so, subject to
26 * the following conditions:
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
31 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 #include <vlib/vlib.h>
41 #include <vlib/unix/unix.h>
42 #include <vppinfra/callback.h>
43 #include <vppinfra/cpu.h>
44 #include <vppinfra/elog.h>
48 /** \file src/vlib/cli.c Debug CLI Implementation
51 int vl_api_set_elog_trace_api_messages (int enable);
52 int vl_api_get_elog_trace_api_messages (void);
54 static void *current_traced_heap;
56 /* Root of all show commands. */
58 VLIB_CLI_COMMAND (vlib_cli_show_command, static) = {
60 .short_help = "Show commands",
64 /* Root of all clear commands. */
66 VLIB_CLI_COMMAND (vlib_cli_clear_command, static) = {
68 .short_help = "Clear commands",
72 /* Root of all set commands. */
74 VLIB_CLI_COMMAND (vlib_cli_set_command, static) = {
76 .short_help = "Set commands",
80 /* Root of all test commands. */
82 VLIB_CLI_COMMAND (vlib_cli_test_command, static) = {
84 .short_help = "Test commands",
88 /* Returns bitmap of commands which match key. */
90 vlib_cli_sub_command_match (vlib_cli_command_t * c, unformat_input_t * input)
94 vlib_cli_parse_position_t *p;
96 unformat_skip_white_space (input);
102 k = unformat_get_input (input);
116 case UNFORMAT_END_OF_INPUT:
117 /* White space or end of input removes any non-white
118 matches that were before possible. */
119 if (i < vec_len (c->sub_command_positions)
120 && clib_bitmap_count_set_bits (match) > 1)
122 p = vec_elt_at_index (c->sub_command_positions, i);
123 for (n = 0; n < vec_len (p->bitmaps); n++)
124 match = clib_bitmap_andnot (match, p->bitmaps[n]);
129 unformat_put_input (input);
133 if (i >= vec_len (c->sub_command_positions))
136 clib_bitmap_free (match);
140 p = vec_elt_at_index (c->sub_command_positions, i);
141 if (vec_len (p->bitmaps) == 0)
145 if (n < 0 || n >= vec_len (p->bitmaps))
149 match = clib_bitmap_dup (p->bitmaps[n]);
151 match = clib_bitmap_and (match, p->bitmaps[n]);
153 if (clib_bitmap_is_zero (match))
161 /* Looks for string based sub-input formatted { SUB-INPUT }. */
163 unformat_vlib_cli_sub_input (unformat_input_t * i, va_list * args)
165 unformat_input_t *sub_input = va_arg (*args, unformat_input_t *);
171 c = unformat_get_input (i);
183 /* Put back paren. */
184 if (c != UNFORMAT_END_OF_INPUT)
185 unformat_put_input (i);
187 if (c == '{' && unformat (i, "%v", &s))
189 unformat_init_vector (sub_input, s);
198 static vlib_cli_command_t *
199 get_sub_command (vlib_cli_main_t * cm, vlib_cli_command_t * parent, u32 si)
201 vlib_cli_sub_command_t *s = vec_elt_at_index (parent->sub_commands, si);
202 return vec_elt_at_index (cm->commands, s->index);
206 unformat_vlib_cli_sub_command (unformat_input_t * i, va_list * args)
208 vlib_main_t *vm = va_arg (*args, vlib_main_t *);
209 vlib_cli_command_t *c = va_arg (*args, vlib_cli_command_t *);
210 vlib_cli_command_t **result = va_arg (*args, vlib_cli_command_t **);
211 vlib_cli_main_t *cm = &vm->cli_main;
212 uword *match_bitmap, is_unique, index;
214 match_bitmap = vlib_cli_sub_command_match (c, i);
215 is_unique = clib_bitmap_count_set_bits (match_bitmap) == 1;
219 index = clib_bitmap_first_set (match_bitmap);
220 *result = get_sub_command (cm, c, index);
222 clib_bitmap_free (match_bitmap);
228 vlib_cli_cmp_strings (void *a1, void *a2)
230 u8 *c1 = *(u8 **) a1;
231 u8 *c2 = *(u8 **) a2;
233 return vec_cmp (c1, c2);
237 vlib_cli_get_possible_completions (u8 * str)
239 vlib_cli_command_t *c;
240 vlib_cli_sub_command_t *sc;
241 vlib_main_t *vm = vlib_get_main ();
242 vlib_cli_main_t *vcm = &vm->cli_main;
243 uword *match_bitmap = 0;
244 uword index, is_unique, help_next_level;
246 unformat_input_t input;
247 unformat_init_vector (&input, vec_dup (str));
248 c = vec_elt_at_index (vcm->commands, 0);
250 /* remove trailing whitespace, except for one of them */
251 while (vec_len (input.buffer) >= 2 &&
252 isspace (input.buffer[vec_len (input.buffer) - 1]) &&
253 isspace (input.buffer[vec_len (input.buffer) - 2]))
255 vec_del1 (input.buffer, vec_len (input.buffer) - 1);
258 /* if input is empty, directly return list of root commands */
259 if (vec_len (input.buffer) == 0 ||
260 (vec_len (input.buffer) == 1 && isspace (input.buffer[0])))
262 vec_foreach (sc, c->sub_commands)
264 vec_add1 (result, (u8 *) sc->name);
269 /* add a trailing '?' so that vlib_cli_sub_command_match can find
270 * all commands starting with the input string */
271 vec_add1 (input.buffer, '?');
275 match_bitmap = vlib_cli_sub_command_match (c, &input);
276 /* no match: return no result */
277 if (match_bitmap == 0)
281 is_unique = clib_bitmap_count_set_bits (match_bitmap) == 1;
282 /* unique match: try to step one subcommand level further */
285 /* stop if no more input */
286 if (input.index >= vec_len (input.buffer) - 1)
291 index = clib_bitmap_first_set (match_bitmap);
292 c = get_sub_command (vcm, c, index);
293 clib_bitmap_free (match_bitmap);
296 /* multiple matches: stop here, return all matches */
300 /* remove trailing '?' */
301 vec_del1 (input.buffer, vec_len (input.buffer) - 1);
303 /* if we have a space at the end of input, and a unique match,
304 * autocomplete the next level of subcommands */
305 help_next_level = (vec_len (str) == 0) || isspace (str[vec_len (str) - 1]);
307 clib_bitmap_foreach(index, match_bitmap, {
308 if (help_next_level && is_unique) {
309 c = get_sub_command (vcm, c, index);
310 vec_foreach (sc, c->sub_commands) {
311 vec_add1 (result, (u8*) sc->name);
313 goto done; /* break doesn't work in this macro-loop */
315 sc = &c->sub_commands[index];
316 vec_add1(result, (u8*) sc->name);
321 clib_bitmap_free (match_bitmap);
322 unformat_free (&input);
325 vec_sort_with_function (result, vlib_cli_cmp_strings);
330 format_vlib_cli_command_help (u8 * s, va_list * args)
332 vlib_cli_command_t *c = va_arg (*args, vlib_cli_command_t *);
333 int is_long = va_arg (*args, int);
334 if (is_long && c->long_help)
335 s = format (s, "%s", c->long_help);
336 else if (c->short_help)
337 s = format (s, "%s", c->short_help);
339 s = format (s, "%v commands", c->path);
344 format_vlib_cli_path (u8 * s, va_list * args)
346 u8 *path = va_arg (*args, u8 *);
348 s = format (s, "%v", path);
353 static vlib_cli_command_t *
354 all_subs (vlib_cli_main_t * cm, vlib_cli_command_t * subs, u32 command_index)
356 vlib_cli_command_t *c = vec_elt_at_index (cm->commands, command_index);
357 vlib_cli_sub_command_t *sc;
360 vec_add1 (subs, c[0]);
362 vec_foreach (sc, c->sub_commands) subs = all_subs (cm, subs, sc->index);
368 vlib_cli_cmp_rule (void *a1, void *a2)
370 vlib_cli_sub_rule_t *r1 = a1;
371 vlib_cli_sub_rule_t *r2 = a2;
373 return vec_cmp (r1->name, r2->name);
377 vlib_cli_cmp_command (void *a1, void *a2)
379 vlib_cli_command_t *c1 = a1;
380 vlib_cli_command_t *c2 = a2;
382 return vec_cmp (c1->path, c2->path);
385 static clib_error_t *
386 vlib_cli_dispatch_sub_commands (vlib_main_t * vm,
387 vlib_cli_main_t * cm,
388 unformat_input_t * input,
389 uword parent_command_index)
391 vlib_cli_command_t *parent, *c;
392 clib_error_t *error = 0;
393 unformat_input_t sub_input;
395 uword is_main_dispatch = cm == &vm->cli_main;
397 parent = vec_elt_at_index (cm->commands, parent_command_index);
398 if (is_main_dispatch && unformat (input, "help"))
400 uword help_at_end_of_line, i;
402 help_at_end_of_line =
403 unformat_check_input (input) == UNFORMAT_END_OF_INPUT;
408 (input, unformat_vlib_cli_sub_command, vm, c, &parent))
411 else if (!(unformat_check_input (input) == UNFORMAT_END_OF_INPUT))
418 /* help SUB-COMMAND => long format help.
419 "help" at end of line: show all commands. */
420 if (!help_at_end_of_line)
421 vlib_cli_output (vm, "%U", format_vlib_cli_command_help, c,
424 else if (vec_len (c->sub_commands) == 0)
425 vlib_cli_output (vm, "%v: no sub-commands", c->path);
429 vlib_cli_sub_rule_t *sr, *subs = 0;
430 vlib_cli_sub_command_t *sc;
432 vec_foreach (sc, c->sub_commands)
434 vec_add2 (subs, sr, 1);
436 sr->command_index = sc->index;
440 vec_sort_with_function (subs, vlib_cli_cmp_rule);
442 for (i = 0; i < vec_len (subs); i++)
444 vlib_cli_command_t *d;
446 d = vec_elt_at_index (cm->commands, subs[i].command_index);
448 (vm, " %-30v %U", subs[i].name,
449 format_vlib_cli_command_help, d, /* is_long */ 0);
456 else if (is_main_dispatch
457 && (unformat (input, "choices") || unformat (input, "?")))
459 vlib_cli_command_t *sub, *subs;
461 subs = all_subs (cm, 0, parent_command_index);
462 vec_sort_with_function (subs, vlib_cli_cmp_command);
463 vec_foreach (sub, subs)
464 vlib_cli_output (vm, " %-40U %U",
465 format_vlib_cli_path, sub->path,
466 format_vlib_cli_command_help, sub, /* is_long */ 0);
470 else if (unformat (input, "comment %v", &string))
475 else if (unformat (input, "uncomment %U",
476 unformat_vlib_cli_sub_input, &sub_input))
479 vlib_cli_dispatch_sub_commands (vm, cm, &sub_input,
480 parent_command_index);
481 unformat_free (&sub_input);
483 else if (unformat (input, "leak-check %U",
484 unformat_vlib_cli_sub_input, &sub_input))
487 if (current_traced_heap)
490 oldheap = clib_mem_set_heap (current_traced_heap);
492 clib_mem_set_heap (oldheap);
493 current_traced_heap = 0;
497 vlib_cli_dispatch_sub_commands (vm, cm, &sub_input,
498 parent_command_index);
499 unformat_free (&sub_input);
501 /* Otherwise, the clib_error_t shows up as a leak... */
504 vlib_cli_output (vm, "%v", error->what);
505 clib_error_free (error);
509 (void) clib_mem_trace_enable_disable (0);
510 leak_report = format (0, "%U", format_mheap, clib_mem_get_heap (),
511 1 /* verbose, i.e. print leaks */ );
513 vlib_cli_output (vm, "%v", leak_report);
514 vec_free (leak_report);
518 if (unformat_user (input, unformat_vlib_cli_sub_command, vm, parent, &c))
520 unformat_input_t *si;
521 uword has_sub_commands =
522 vec_len (c->sub_commands) + vec_len (c->sub_rules) > 0;
525 if (unformat_user (input, unformat_vlib_cli_sub_input, &sub_input))
528 if (has_sub_commands)
529 error = vlib_cli_dispatch_sub_commands (vm, cm, si, c - cm->commands);
531 if (has_sub_commands && !error)
532 /* Found valid sub-command. */ ;
534 else if (c->function)
536 clib_error_t *c_error;
538 /* Skip white space for benefit of called function. */
539 unformat_skip_white_space (si);
541 if (unformat (si, "?"))
543 vlib_cli_output (vm, " %-40U %U", format_vlib_cli_path, c->path, format_vlib_cli_command_help, c, /* is_long */
548 if (PREDICT_FALSE (vm->elog_trace_cli_commands))
551 ELOG_TYPE_DECLARE (e) =
553 .format = "cli-cmd: %s",
561 ed = ELOG_DATA (&vm->elog_main, e);
562 ed->c = elog_string (&vm->elog_main, "%v", c->path);
566 vlib_worker_thread_barrier_sync (vm);
567 if (PREDICT_FALSE (vec_len (cm->perf_counter_cbs) != 0))
568 clib_call_callbacks (cm->perf_counter_cbs, cm,
569 c - cm->commands, 0 /* before */ );
572 c_error = c->function (vm, si, c);
574 if (PREDICT_FALSE (vec_len (cm->perf_counter_cbs) != 0))
575 clib_call_callbacks (cm->perf_counter_cbs, cm,
576 c - cm->commands, 1 /* after */ );
578 vlib_worker_thread_barrier_release (vm);
580 if (PREDICT_FALSE (vm->elog_trace_cli_commands))
583 ELOG_TYPE_DECLARE (e) =
585 .format = "cli-cmd: %s %s",
586 .format_args = "T4T4",
593 ed = ELOG_DATA (&vm->elog_main, e);
594 ed->c = elog_string (&vm->elog_main, "%v", c->path);
597 vec_add1 (c_error->what, 0);
599 elog_string (&vm->elog_main, (char *) c_error->what);
600 _vec_len (c_error->what) -= 1;
603 ed->err = elog_string (&vm->elog_main, "OK");
609 clib_error_return (0, "%v: %v", c->path, c_error->what);
610 clib_error_free (c_error);
611 /* Free sub input. */
619 /* Free any previous error. */
620 clib_error_free (error);
624 error = clib_error_return (0, "%v: no sub-commands", c->path);
626 /* Free sub input. */
638 return clib_error_return (0, "%v: unknown input `%U'", parent->path,
639 format_unformat_error, input);
641 return clib_error_return (0, "unknown input `%U'", format_unformat_error,
646 void vlib_unix_error_report (vlib_main_t *, clib_error_t *)
647 __attribute__ ((weak));
650 vlib_unix_error_report (vlib_main_t * vm, clib_error_t * error)
654 /* Process CLI input. */
656 vlib_cli_input (vlib_main_t * vm,
657 unformat_input_t * input,
658 vlib_cli_output_function_t * function, uword function_arg)
660 vlib_process_t *cp = vlib_get_current_process (vm);
662 vlib_cli_output_function_t *save_function;
663 uword save_function_arg;
666 save_function = cp->output_function;
667 save_function_arg = cp->output_function_arg;
669 cp->output_function = function;
670 cp->output_function_arg = function_arg;
674 error = vlib_cli_dispatch_sub_commands (vm, &vm->cli_main, input,
677 while (!error && !unformat (input, "%U", unformat_eof));
681 vlib_cli_output (vm, "%v", error->what);
682 vlib_unix_error_report (vm, error);
683 /* clib_error_return is unfortunately often called with a '0'
685 rv = error->code != 0 ? error->code : -1;
686 clib_error_free (error);
689 cp->output_function = save_function;
690 cp->output_function_arg = save_function_arg;
694 /* Output to current CLI connection. */
696 vlib_cli_output (vlib_main_t * vm, char *fmt, ...)
698 vlib_process_t *cp = vlib_get_current_process (vm);
703 s = va_format (0, fmt, &va);
706 /* Terminate with \n if not present. */
707 if (vec_len (s) > 0 && s[vec_len (s) - 1] != '\n')
710 if ((!cp) || (!cp->output_function))
711 fformat (stdout, "%v", s);
713 cp->output_function (cp->output_function_arg, s, vec_len (s));
718 void *vl_msg_push_heap (void) __attribute__ ((weak));
720 vl_msg_push_heap (void)
725 void vl_msg_pop_heap (void *oldheap) __attribute__ ((weak));
727 vl_msg_pop_heap (void *oldheap)
731 void *vlib_stats_push_heap (void *) __attribute__ ((weak));
733 vlib_stats_push_heap (void *notused)
738 static clib_error_t *
739 show_memory_usage (vlib_main_t * vm,
740 unformat_input_t * input, vlib_cli_command_t * cmd)
742 clib_mem_main_t *mm = &clib_mem_main;
743 int verbose __attribute__ ((unused)) = 0;
744 int api_segment = 0, stats_segment = 0, main_heap = 0, numa_heaps = 0;
748 uword clib_mem_trace_enable_disable (uword enable);
752 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
754 if (unformat (input, "verbose"))
756 else if (unformat (input, "api-segment"))
758 else if (unformat (input, "stats-segment"))
760 else if (unformat (input, "main-heap"))
762 else if (unformat (input, "numa-heaps"))
766 error = clib_error_return (0, "unknown input `%U'",
767 format_unformat_error, input);
772 if ((api_segment + stats_segment + main_heap + numa_heaps) == 0)
773 return clib_error_return
774 (0, "Need one of api-segment, stats-segment, main-heap or numa-heaps");
778 void *oldheap = vl_msg_push_heap ();
779 was_enabled = clib_mem_trace_enable_disable (0);
781 format (0, "%U\n", format_mheap, clib_mem_get_heap (), 1);
782 vl_msg_pop_heap (oldheap);
783 u8 *s = vec_dup (s_in_svm);
785 oldheap = vl_msg_push_heap ();
787 clib_mem_trace_enable_disable (was_enabled);
788 vl_msg_pop_heap (oldheap);
789 vlib_cli_output (vm, "API segment");
790 vlib_cli_output (vm, "%v", s);
795 void *oldheap = vlib_stats_push_heap (0);
796 was_enabled = clib_mem_trace_enable_disable (0);
798 format (0, "%U\n", format_mheap, clib_mem_get_heap (), 1);
800 clib_mem_set_heap (oldheap);
801 u8 *s = vec_dup (s_in_svm);
803 oldheap = vlib_stats_push_heap (0);
807 clib_mem_trace_enable_disable (was_enabled);
808 clib_mem_set_heap (oldheap);
810 vlib_cli_output (vm, "Stats segment");
811 vlib_cli_output (vm, "%v", s);
820 * Note: the foreach_vlib_main causes allocator traffic,
821 * so shut off tracing before we go there...
823 was_enabled = clib_mem_trace_enable_disable (0);
828 struct dlmallinfo mi;
830 mspace = mm->per_cpu_mheaps[index];
832 mi = mspace_mallinfo (mspace);
833 vlib_cli_output (vm, "%sThread %d %s\n", index ? "\n":"", index,
834 vlib_worker_threads[index].name);
835 vlib_cli_output (vm, " %U\n", format_page_map,
836 pointer_to_uword (mspace_least_addr(mspace)),
838 vlib_cli_output (vm, " %U\n", format_mheap,
839 mm->per_cpu_mheaps[index],
845 /* Restore the trace flag */
846 clib_mem_trace_enable_disable (was_enabled);
850 struct dlmallinfo mi;
853 for (i = 0; i < ARRAY_LEN (mm->per_numa_mheaps); i++)
855 if (mm->per_numa_mheaps[i] == 0)
857 if (mm->per_numa_mheaps[i] == mm->per_cpu_mheaps[i])
859 vlib_cli_output (vm, "Numa %d uses the main heap...", i);
862 was_enabled = clib_mem_trace_enable_disable (0);
863 mspace = mm->per_numa_mheaps[i];
865 mi = mspace_mallinfo (mspace);
866 vlib_cli_output (vm, "Numa %d:", i);
867 vlib_cli_output (vm, " %U\n", format_page_map,
868 pointer_to_uword (mspace_least_addr (mspace)),
870 vlib_cli_output (vm, " %U\n", format_mheap,
871 mm->per_numa_mheaps[index], verbose);
879 VLIB_CLI_COMMAND (show_memory_usage_command, static) = {
880 .path = "show memory",
881 .short_help = "show memory [api-segment][stats-segment][verbose]\n"
883 .function = show_memory_usage,
887 static clib_error_t *
888 show_cpu (vlib_main_t * vm, unformat_input_t * input,
889 vlib_cli_command_t * cmd)
891 #define _(a,b,c) vlib_cli_output (vm, "%-25s " b, a ":", c);
892 _("Model name", "%U", format_cpu_model_name);
893 _("Microarch model (family)", "%U", format_cpu_uarch);
894 _("Flags", "%U", format_cpu_flags);
895 _("Base frequency", "%.2f GHz",
896 ((f64) vm->clib_time.clocks_per_second) * 1e-9);
902 * Displays various information about the CPU.
905 * @cliexstart{show cpu}
906 * Model name: Intel(R) Xeon(R) CPU E5-2667 v4 @ 3.20GHz
907 * Microarchitecture: Broadwell (Broadwell-EP/EX)
908 * Flags: sse3 ssse3 sse41 sse42 avx avx2 aes
909 * Base Frequency: 3.20 GHz
913 VLIB_CLI_COMMAND (show_cpu_command, static) = {
915 .short_help = "Show cpu information",
916 .function = show_cpu,
920 static clib_error_t *
921 enable_disable_memory_trace (vlib_main_t * vm,
922 unformat_input_t * input,
923 vlib_cli_command_t * cmd)
925 clib_mem_main_t *mm = &clib_mem_main;
926 unformat_input_t _line_input, *line_input = &_line_input;
929 int stats_segment = 0;
934 if (!unformat_user (input, unformat_line_input, line_input))
937 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
939 if (unformat (line_input, "%U", unformat_vlib_enable_disable, &enable))
941 else if (unformat (line_input, "api-segment"))
943 else if (unformat (line_input, "stats-segment"))
945 else if (unformat (line_input, "main-heap"))
947 else if (unformat (line_input, "numa-heap %d", &numa_id))
951 unformat_free (line_input);
952 return clib_error_return (0, "invalid input");
955 unformat_free (line_input);
957 if ((api_segment + stats_segment + main_heap + (enable == 0)
958 + (numa_id != ~0)) == 0)
960 return clib_error_return
961 (0, "Need one of main-heap, stats-segment, api-segment,\n"
962 "numa-heap <nn> or disable");
965 /* Turn off current trace, if any */
966 if (current_traced_heap)
969 oldheap = clib_mem_set_heap (current_traced_heap);
971 clib_mem_set_heap (oldheap);
972 current_traced_heap = 0;
981 oldheap = vl_msg_push_heap ();
982 current_traced_heap = clib_mem_get_heap ();
984 vl_msg_pop_heap (oldheap);
991 oldheap = vlib_stats_push_heap (0);
992 current_traced_heap = clib_mem_get_heap ();
993 clib_mem_trace (stats_segment);
994 /* We don't want to call vlib_stats_pop_heap... */
996 clib_mem_set_heap (oldheap);
1002 current_traced_heap = clib_mem_get_heap ();
1003 clib_mem_trace (main_heap);
1008 if (numa_id >= ARRAY_LEN (mm->per_numa_mheaps))
1009 return clib_error_return (0, "Numa %d out of range", numa_id);
1010 if (mm->per_numa_mheaps[numa_id] == 0)
1011 return clib_error_return (0, "Numa %d heap not active", numa_id);
1013 if (mm->per_numa_mheaps[numa_id] == clib_mem_get_heap ())
1014 return clib_error_return (0, "Numa %d uses the main heap...",
1016 current_traced_heap = mm->per_numa_mheaps[numa_id];
1017 oldheap = clib_mem_set_heap (current_traced_heap);
1019 clib_mem_set_heap (oldheap);
1027 VLIB_CLI_COMMAND (enable_disable_memory_trace_command, static) = {
1028 .path = "memory-trace",
1029 .short_help = "memory-trace on|off [api-segment][stats-segment][main-heap]\n"
1030 " [numa-heap <numa-id>]\n",
1031 .function = enable_disable_memory_trace,
1035 static clib_error_t *
1036 restart_cmd_fn (vlib_main_t * vm, unformat_input_t * input,
1037 vlib_cli_command_t * cmd)
1039 clib_file_main_t *fm = &file_main;
1042 /* environ(7) does not indicate a header for this */
1043 extern char **environ;
1045 /* Close all known open files */
1047 pool_foreach(f, fm->file_pool,
1049 if (f->file_descriptor > 2)
1050 close(f->file_descriptor);
1055 execve (vm->name, (char **) vm->argv, environ);
1061 VLIB_CLI_COMMAND (restart_cmd,static) = {
1063 .short_help = "restart process",
1064 .function = restart_cmd_fn,
1070 * A trivial test harness to verify the per-process output_function
1071 * is working correcty.
1074 static clib_error_t *
1075 sleep_ten_seconds (vlib_main_t * vm,
1076 unformat_input_t * input, vlib_cli_command_t * cmd)
1079 u16 my_id = rand ();
1081 vlib_cli_output (vm, "Starting 10 seconds sleep with id %u\n", my_id);
1083 for (i = 0; i < 10; i++)
1085 vlib_process_wait_for_event_or_clock (vm, 1.0);
1086 vlib_cli_output (vm, "Iteration number %u, my id: %u\n", i, my_id);
1088 vlib_cli_output (vm, "Done with sleep with id %u\n", my_id);
1093 VLIB_CLI_COMMAND (ping_command, static) = {
1094 .path = "test sleep",
1095 .function = sleep_ten_seconds,
1096 .short_help = "Sleep for 10 seconds",
1099 #endif /* ifdef TEST_CODE */
1102 vlib_cli_normalize_path (char *input, char **result)
1107 uword index_of_last_space = ~0;
1112 /* Multiple white space -> single space. */
1119 if (l > 0 && s[l - 1] != ' ')
1127 if (l > 0 && s[l - 1] == ' ')
1128 index_of_last_space = vec_len (s);
1135 /* Remove any extra space at end. */
1136 if (l > 0 && s[l - 1] == ' ')
1140 return index_of_last_space;
1144 parent_path_len (char *path)
1147 for (i = vec_len (path) - 1; i >= 0; i--)
1156 add_sub_command (vlib_cli_main_t * cm, uword parent_index, uword child_index)
1158 vlib_cli_command_t *p, *c;
1159 vlib_cli_sub_command_t *sub_c;
1163 p = vec_elt_at_index (cm->commands, parent_index);
1164 c = vec_elt_at_index (cm->commands, child_index);
1166 l = parent_path_len (c->path);
1168 sub_name = vec_dup ((u8 *) c->path);
1171 ASSERT (l + 1 < vec_len (c->path));
1173 vec_add (sub_name, c->path + l + 1, vec_len (c->path) - (l + 1));
1176 if (sub_name[0] == '%')
1179 vlib_cli_sub_rule_t *sr;
1182 vec_delete (sub_name, 1, 0);
1184 if (!p->sub_rule_index_by_name)
1185 p->sub_rule_index_by_name = hash_create_vec ( /* initial length */ 32,
1186 sizeof (sub_name[0]),
1188 q = hash_get_mem (p->sub_rule_index_by_name, sub_name);
1191 sr = vec_elt_at_index (p->sub_rules, q[0]);
1192 ASSERT (sr->command_index == child_index);
1196 hash_set_mem (p->sub_rule_index_by_name, sub_name,
1197 vec_len (p->sub_rules));
1198 vec_add2 (p->sub_rules, sr, 1);
1199 sr->name = sub_name;
1200 sr->rule_index = sr - p->sub_rules;
1201 sr->command_index = child_index;
1205 if (!p->sub_command_index_by_name)
1206 p->sub_command_index_by_name = hash_create_vec ( /* initial length */ 32,
1207 sizeof (c->path[0]),
1210 /* Check if sub-command has already been created. */
1211 if (hash_get_mem (p->sub_command_index_by_name, sub_name))
1213 vec_free (sub_name);
1217 vec_add2 (p->sub_commands, sub_c, 1);
1218 sub_c->index = child_index;
1219 sub_c->name = sub_name;
1220 hash_set_mem (p->sub_command_index_by_name, sub_c->name,
1221 sub_c - p->sub_commands);
1223 vec_validate (p->sub_command_positions, vec_len (sub_c->name) - 1);
1224 for (i = 0; i < vec_len (sub_c->name); i++)
1227 vlib_cli_parse_position_t *pos;
1229 pos = vec_elt_at_index (p->sub_command_positions, i);
1232 pos->min_char = sub_c->name[i];
1234 n = sub_c->name[i] - pos->min_char;
1237 pos->min_char = sub_c->name[i];
1238 vec_insert (pos->bitmaps, -n, 0);
1242 vec_validate (pos->bitmaps, n);
1244 clib_bitmap_ori (pos->bitmaps[n], sub_c - p->sub_commands);
1249 vlib_cli_make_parent (vlib_cli_main_t * cm, uword ci)
1251 uword p_len, pi, *p;
1253 vlib_cli_command_t *c, *parent;
1255 /* Root command (index 0) should have already been added. */
1256 ASSERT (vec_len (cm->commands) > 0);
1258 c = vec_elt_at_index (cm->commands, ci);
1259 p_len = parent_path_len (c->path);
1261 /* No space? Parent is root command. */
1264 add_sub_command (cm, 0, ci);
1269 vec_add (p_path, c->path, p_len);
1271 p = hash_get_mem (cm->command_index_by_path, p_path);
1273 /* Parent exists? */
1276 /* Parent does not exist; create it. */
1277 vec_add2 (cm->commands, parent, 1);
1278 parent->path = p_path;
1279 hash_set_mem (cm->command_index_by_path, parent->path,
1280 parent - cm->commands);
1281 pi = parent - cm->commands;
1289 add_sub_command (cm, pi, ci);
1291 /* Create parent's parent. */
1293 vlib_cli_make_parent (cm, pi);
1297 vlib_cli_command_is_empty (vlib_cli_command_t * c)
1299 return (c->long_help == 0 && c->short_help == 0 && c->function == 0);
1303 vlib_cli_register (vlib_main_t * vm, vlib_cli_command_t * c)
1305 vlib_cli_main_t *cm = &vm->cli_main;
1306 clib_error_t *error = 0;
1308 char *normalized_path;
1310 if ((error = vlib_call_init_function (vm, vlib_cli_init)))
1313 (void) vlib_cli_normalize_path (c->path, &normalized_path);
1315 if (!cm->command_index_by_path)
1316 cm->command_index_by_path = hash_create_vec ( /* initial length */ 32,
1317 sizeof (c->path[0]),
1320 /* See if command already exists with given path. */
1321 p = hash_get_mem (cm->command_index_by_path, normalized_path);
1324 vlib_cli_command_t *d;
1327 d = vec_elt_at_index (cm->commands, ci);
1329 /* If existing command was created via vlib_cli_make_parent
1330 replaced it with callers data. */
1331 if (vlib_cli_command_is_empty (d))
1333 vlib_cli_command_t save = d[0];
1335 ASSERT (!vlib_cli_command_is_empty (c));
1337 /* Copy callers fields. */
1340 /* Save internal fields. */
1341 d->path = save.path;
1342 d->sub_commands = save.sub_commands;
1343 d->sub_command_index_by_name = save.sub_command_index_by_name;
1344 d->sub_command_positions = save.sub_command_positions;
1345 d->sub_rules = save.sub_rules;
1349 clib_error_return (0, "duplicate command name with path %v",
1352 vec_free (normalized_path);
1358 /* Command does not exist: create it. */
1360 /* Add root command (index 0). */
1361 if (vec_len (cm->commands) == 0)
1363 /* Create command with index 0; path is empty string. */
1364 vec_resize (cm->commands, 1);
1367 ci = vec_len (cm->commands);
1368 hash_set_mem (cm->command_index_by_path, normalized_path, ci);
1369 vec_add1 (cm->commands, c[0]);
1371 c = vec_elt_at_index (cm->commands, ci);
1372 c->path = normalized_path;
1374 /* Don't inherit from registration. */
1375 c->sub_commands = 0;
1376 c->sub_command_index_by_name = 0;
1377 c->sub_command_positions = 0;
1380 vlib_cli_make_parent (cm, ci);
1385 /* $$$ turn back on again someday, maybe */
1387 vlib_cli_register_parse_rule (vlib_main_t * vm, vlib_cli_parse_rule_t * r_reg)
1389 vlib_cli_main_t *cm = &vm->cli_main;
1390 vlib_cli_parse_rule_t *r;
1391 clib_error_t *error = 0;
1395 if (!cm->parse_rule_index_by_name)
1396 cm->parse_rule_index_by_name = hash_create_vec ( /* initial length */ 32,
1397 sizeof (r->name[0]),
1400 /* Make vector copy of name. */
1401 r_name = format (0, "%s", r_reg->name);
1403 if ((p = hash_get_mem (cm->parse_rule_index_by_name, r_name)))
1406 return clib_error_return (0, "duplicate parse rule name `%s'",
1410 vec_add2 (cm->parse_rules, r, 1);
1412 r->name = (char *) r_name;
1413 hash_set_mem (cm->parse_rule_index_by_name, r->name, r - cm->parse_rules);
1418 static clib_error_t *vlib_cli_register_parse_rules (vlib_main_t * vm,
1419 vlib_cli_parse_rule_t *
1421 vlib_cli_parse_rule_t *
1423 __attribute__ ((unused))
1425 clib_error_t *error = 0;
1426 vlib_cli_parse_rule_t *r;
1428 for (r = lo; r < hi; r = clib_elf_section_data_next (r, 0))
1430 if (!r->name || strlen (r->name) == 0)
1432 error = clib_error_return (0, "parse rule with no name");
1436 error = vlib_cli_register_parse_rule (vm, r);
1446 static clib_error_t *
1447 elog_trace_command_fn (vlib_main_t * vm,
1448 unformat_input_t * input, vlib_cli_command_t * cmd)
1450 unformat_input_t _line_input, *line_input = &_line_input;
1452 int api = 0, cli = 0, barrier = 0, dispatch = 0, circuit = 0;
1453 u32 circuit_node_index;
1455 if (!unformat_user (input, unformat_line_input, line_input))
1458 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1460 if (unformat (line_input, "api"))
1462 else if (unformat (line_input, "dispatch"))
1464 else if (unformat (line_input, "circuit-node %U",
1465 unformat_vlib_node, vm, &circuit_node_index))
1467 else if (unformat (line_input, "cli"))
1469 else if (unformat (line_input, "barrier"))
1471 else if (unformat (line_input, "disable"))
1473 else if (unformat (line_input, "enable"))
1478 unformat_free (line_input);
1480 vl_api_set_elog_trace_api_messages
1481 (api ? enable : vl_api_get_elog_trace_api_messages ());
1482 vm->elog_trace_cli_commands = cli ? enable : vm->elog_trace_cli_commands;
1483 vm->elog_trace_graph_dispatch = dispatch ?
1484 enable : vm->elog_trace_graph_dispatch;
1485 vm->elog_trace_graph_circuit = circuit ?
1486 enable : vm->elog_trace_graph_circuit;
1487 vlib_worker_threads->barrier_elog_enabled =
1488 barrier ? enable : vlib_worker_threads->barrier_elog_enabled;
1489 vm->elog_trace_graph_circuit_node_index = circuit_node_index;
1492 * Set up start-of-buffer logic-analyzer trigger
1493 * for main loop event logs, which are fairly heavyweight.
1494 * See src/vlib/main/vlib_elog_main_loop_event(...), which
1495 * will fully disable the scheme when the elog buffer fills.
1497 if (dispatch || circuit)
1499 elog_main_t *em = &vm->elog_main;
1501 em->n_total_events_disable_limit =
1502 em->n_total_events + vec_len (em->event_ring);
1507 vlib_cli_output (vm, "Current status:");
1510 (vm, " Event log API message trace: %s\n CLI command trace: %s",
1511 vl_api_get_elog_trace_api_messages ()? "on" : "off",
1512 vm->elog_trace_cli_commands ? "on" : "off");
1514 (vm, " Barrier sync trace: %s",
1515 vlib_worker_threads->barrier_elog_enabled ? "on" : "off");
1517 (vm, " Graph Dispatch: %s",
1518 vm->elog_trace_graph_dispatch ? "on" : "off");
1520 (vm, " Graph Circuit: %s",
1521 vm->elog_trace_graph_circuit ? "on" : "off");
1522 if (vm->elog_trace_graph_circuit)
1525 format_vlib_node_name, vm, vm->elog_trace_graph_circuit_node_index);
1531 * Control event logging of api, cli, and thread barrier events
1532 * With no arguments, displays the current trace status.
1533 * Name the event groups you wish to trace or stop tracing.
1537 * elog trace api cli barrier
1538 * elog trace api cli barrier disable
1539 * elog trace dispatch
1540 * elog trace circuit-node ethernet-input
1543 * @cliexcmd{elog trace [api][cli][barrier][disable]}
1546 VLIB_CLI_COMMAND (elog_trace_command, static) =
1548 .path = "elog trace",
1549 .short_help = "elog trace [api][cli][barrier][dispatch]\n"
1550 "[circuit-node <name> e.g. ethernet-input][disable]",
1551 .function = elog_trace_command_fn,
1555 static clib_error_t *
1556 suspend_command_fn (vlib_main_t * vm,
1557 unformat_input_t * input, vlib_cli_command_t * cmd)
1559 vlib_process_suspend (vm, 30e-3);
1564 VLIB_CLI_COMMAND (suspend_command, static) =
1567 .short_help = "suspend debug CLI for 30ms",
1568 .function = suspend_command_fn,
1575 sort_cmds_by_path (void *a1, void *a2)
1579 vlib_main_t *vm = vlib_get_main ();
1580 vlib_cli_main_t *cm = &vm->cli_main;
1581 vlib_cli_command_t *c1, *c2;
1584 c1 = vec_elt_at_index (cm->commands, *index1);
1585 c2 = vec_elt_at_index (cm->commands, *index2);
1587 lmin = vec_len (c1->path);
1588 lmin = (vec_len (c2->path) >= lmin) ? lmin : vec_len (c2->path);
1590 for (i = 0; i < lmin; i++)
1592 if (c1->path[i] < c2->path[i])
1594 else if (c1->path[i] > c2->path[i])
1603 vlib_cli_main_t *cm;
1604 u32 parent_command_index;
1606 int show_not_mp_safe;
1609 } vlib_cli_walk_args_t;
1612 cli_recursive_walk (vlib_cli_walk_args_t * aa)
1614 vlib_cli_command_t *parent;
1615 vlib_cli_sub_command_t *sub;
1616 vlib_cli_walk_args_t _a, *a = &_a;
1617 vlib_cli_main_t *cm;
1620 /* Copy args into this stack frame */
1624 parent = vec_elt_at_index (cm->commands, a->parent_command_index);
1626 if (parent->function)
1628 if (((a->show_mp_safe && parent->is_mp_safe)
1629 || (a->show_not_mp_safe && !parent->is_mp_safe))
1630 && (a->show_hit == 0 || parent->hit_counter))
1632 vec_add1 (cm->sort_vector, a->parent_command_index);
1636 parent->hit_counter = 0;
1639 for (i = 0; i < vec_len (parent->sub_commands); i++)
1641 sub = vec_elt_at_index (parent->sub_commands, i);
1642 a->parent_command_index = sub->index;
1643 cli_recursive_walk (a);
1648 format_mp_safe (u8 * s, va_list * args)
1650 vlib_cli_main_t *cm = va_arg (*args, vlib_cli_main_t *);
1651 int show_mp_safe = va_arg (*args, int);
1652 int show_not_mp_safe = va_arg (*args, int);
1653 int show_hit = va_arg (*args, int);
1654 int clear_hit = va_arg (*args, int);
1655 vlib_cli_command_t *c;
1656 vlib_cli_walk_args_t _a, *a = &_a;
1658 char *format_string = "\n%v";
1661 format_string = "\n%v: %u";
1663 vec_reset_length (cm->sort_vector);
1666 a->parent_command_index = 0;
1667 a->show_mp_safe = show_mp_safe;
1668 a->show_not_mp_safe = show_not_mp_safe;
1669 a->show_hit = show_hit;
1670 a->clear_hit = clear_hit;
1672 cli_recursive_walk (a);
1674 vec_sort_with_function (cm->sort_vector, sort_cmds_by_path);
1676 for (i = 0; i < vec_len (cm->sort_vector); i++)
1678 c = vec_elt_at_index (cm->commands, cm->sort_vector[i]);
1679 s = format (s, format_string, c->path, c->hit_counter);
1686 static clib_error_t *
1687 show_cli_command_fn (vlib_main_t * vm,
1688 unformat_input_t * input, vlib_cli_command_t * cmd)
1690 int show_mp_safe = 0;
1691 int show_not_mp_safe = 0;
1695 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1697 if (unformat (input, "mp-safe"))
1699 if (unformat (input, "not-mp-safe"))
1700 show_not_mp_safe = 1;
1701 else if (unformat (input, "hit"))
1703 else if (unformat (input, "clear-hit"))
1709 /* default set: all cli commands */
1710 if (clear_hit == 0 && (show_mp_safe + show_not_mp_safe) == 0)
1711 show_mp_safe = show_not_mp_safe = 1;
1713 vlib_cli_output (vm, "%U", format_mp_safe, &vm->cli_main,
1714 show_mp_safe, show_not_mp_safe, show_hit, clear_hit);
1716 vlib_cli_output (vm, "hit counters cleared...");
1722 * Displays debug cli command information
1725 * @cliexstart{show cli [mp-safe][not-mp-safe][hit][clear-hit]}
1727 * "show cli" displays the entire debug cli:
1731 * adjacency counters
1737 * "show cli mp-safe" displays mp-safe debug CLI commands:
1751 * "show cli not-mp-safe" displays debug CLI commands
1752 * which cause worker thread barrier synchronization
1754 * "show cli hit" displays commands which have been executed. Qualify
1755 * as desired with "mp-safe" or "not-mp-safe".
1757 * "show cli clear-hit" clears the per-command hit counters.
1762 VLIB_CLI_COMMAND (show_cli_command, static) =
1765 .short_help = "show cli [mp-safe][not-mp-safe][hit][clear-hit]",
1766 .function = show_cli_command_fn,
1771 static clib_error_t *
1772 vlib_cli_init (vlib_main_t * vm)
1774 vlib_cli_main_t *cm = &vm->cli_main;
1775 clib_error_t *error = 0;
1776 vlib_cli_command_t *cmd;
1778 cmd = cm->cli_command_registrations;
1782 error = vlib_cli_register (vm, cmd);
1785 cmd = cmd->next_cli_command;
1790 VLIB_INIT_FUNCTION (vlib_cli_init);
1793 * fd.io coding-style-patch-verification: ON
1796 * eval: (c-set-style "gnu")