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-rw-r--r--src/vlib/cli.c1173
1 files changed, 1173 insertions, 0 deletions
diff --git a/src/vlib/cli.c b/src/vlib/cli.c
new file mode 100644
index 00000000000..2d141115857
--- /dev/null
+++ b/src/vlib/cli.c
@@ -0,0 +1,1173 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * cli.c: command line interface
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <vlib/vlib.h>
+#include <vppinfra/cpu.h>
+
+/* Root of all show commands. */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vlib_cli_show_command, static) = {
+ .path = "show",
+ .short_help = "Show commands",
+};
+/* *INDENT-ON* */
+
+/* Root of all clear commands. */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vlib_cli_clear_command, static) = {
+ .path = "clear",
+ .short_help = "Clear commands",
+};
+/* *INDENT-ON* */
+
+/* Root of all set commands. */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vlib_cli_set_command, static) = {
+ .path = "set",
+ .short_help = "Set commands",
+};
+/* *INDENT-ON* */
+
+/* Root of all test commands. */
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (vlib_cli_test_command, static) = {
+ .path = "test",
+ .short_help = "Test commands",
+};
+/* *INDENT-ON* */
+
+/* Returns bitmap of commands which match key. */
+static uword *
+vlib_cli_sub_command_match (vlib_cli_command_t * c, unformat_input_t * input)
+{
+ int i, n;
+ uword *match = 0;
+ vlib_cli_parse_position_t *p;
+
+ unformat_skip_white_space (input);
+
+ for (i = 0;; i++)
+ {
+ uword k;
+
+ k = unformat_get_input (input);
+ switch (k)
+ {
+ case 'a' ... 'z':
+ case 'A' ... 'Z':
+ case '0' ... '9':
+ case '-':
+ case '_':
+ break;
+
+ case ' ':
+ case '\t':
+ case '\r':
+ case '\n':
+ case UNFORMAT_END_OF_INPUT:
+ /* White space or end of input removes any non-white
+ matches that were before possible. */
+ if (i < vec_len (c->sub_command_positions)
+ && clib_bitmap_count_set_bits (match) > 1)
+ {
+ p = vec_elt_at_index (c->sub_command_positions, i);
+ for (n = 0; n < vec_len (p->bitmaps); n++)
+ match = clib_bitmap_andnot (match, p->bitmaps[n]);
+ }
+ goto done;
+
+ default:
+ unformat_put_input (input);
+ goto done;
+ }
+
+ if (i >= vec_len (c->sub_command_positions))
+ {
+ no_match:
+ clib_bitmap_free (match);
+ return 0;
+ }
+
+ p = vec_elt_at_index (c->sub_command_positions, i);
+ if (vec_len (p->bitmaps) == 0)
+ goto no_match;
+
+ n = k - p->min_char;
+ if (n < 0 || n >= vec_len (p->bitmaps))
+ goto no_match;
+
+ if (i == 0)
+ match = clib_bitmap_dup (p->bitmaps[n]);
+ else
+ match = clib_bitmap_and (match, p->bitmaps[n]);
+
+ if (clib_bitmap_is_zero (match))
+ goto no_match;
+ }
+
+done:
+ return match;
+}
+
+/* Looks for string based sub-input formatted { SUB-INPUT }. */
+uword
+unformat_vlib_cli_sub_input (unformat_input_t * i, va_list * args)
+{
+ unformat_input_t *sub_input = va_arg (*args, unformat_input_t *);
+ u8 *s;
+ uword c;
+
+ while (1)
+ {
+ c = unformat_get_input (i);
+ switch (c)
+ {
+ case ' ':
+ case '\t':
+ case '\n':
+ case '\r':
+ case '\f':
+ break;
+
+ case '{':
+ default:
+ /* Put back paren. */
+ if (c != UNFORMAT_END_OF_INPUT)
+ unformat_put_input (i);
+
+ if (c == '{' && unformat (i, "%v", &s))
+ {
+ unformat_init_vector (sub_input, s);
+ return 1;
+ }
+ return 0;
+ }
+ }
+ return 0;
+}
+
+static vlib_cli_command_t *
+get_sub_command (vlib_cli_main_t * cm, vlib_cli_command_t * parent, u32 si)
+{
+ vlib_cli_sub_command_t *s = vec_elt_at_index (parent->sub_commands, si);
+ return vec_elt_at_index (cm->commands, s->index);
+}
+
+static uword
+unformat_vlib_cli_sub_command (unformat_input_t * i, va_list * args)
+{
+ vlib_main_t *vm = va_arg (*args, vlib_main_t *);
+ vlib_cli_command_t *c = va_arg (*args, vlib_cli_command_t *);
+ vlib_cli_command_t **result = va_arg (*args, vlib_cli_command_t **);
+ vlib_cli_main_t *cm = &vm->cli_main;
+ uword *match_bitmap, is_unique, index;
+
+ {
+ vlib_cli_sub_rule_t *sr;
+ vlib_cli_parse_rule_t *r;
+ vec_foreach (sr, c->sub_rules)
+ {
+ void **d;
+ r = vec_elt_at_index (cm->parse_rules, sr->rule_index);
+ vec_add2 (cm->parse_rule_data, d, 1);
+ vec_reset_length (d[0]);
+ if (r->data_size)
+ d[0] = _vec_resize (d[0],
+ /* length increment */ 1,
+ r->data_size,
+ /* header_bytes */ 0,
+ /* data align */ sizeof (uword));
+ if (unformat_user (i, r->unformat_function, vm, d[0]))
+ {
+ *result = vec_elt_at_index (cm->commands, sr->command_index);
+ return 1;
+ }
+ }
+ }
+
+ match_bitmap = vlib_cli_sub_command_match (c, i);
+ is_unique = clib_bitmap_count_set_bits (match_bitmap) == 1;
+ index = ~0;
+ if (is_unique)
+ {
+ index = clib_bitmap_first_set (match_bitmap);
+ *result = get_sub_command (cm, c, index);
+ }
+ clib_bitmap_free (match_bitmap);
+
+ return is_unique;
+}
+
+static u8 *
+format_vlib_cli_command_help (u8 * s, va_list * args)
+{
+ vlib_cli_command_t *c = va_arg (*args, vlib_cli_command_t *);
+ int is_long = va_arg (*args, int);
+ if (is_long && c->long_help)
+ s = format (s, "%s", c->long_help);
+ else if (c->short_help)
+ s = format (s, "%s", c->short_help);
+ else
+ s = format (s, "%v commands", c->path);
+ return s;
+}
+
+static u8 *
+format_vlib_cli_parse_rule_name (u8 * s, va_list * args)
+{
+ vlib_cli_parse_rule_t *r = va_arg (*args, vlib_cli_parse_rule_t *);
+ return format (s, "<%U>", format_c_identifier, r->name);
+}
+
+static u8 *
+format_vlib_cli_path (u8 * s, va_list * args)
+{
+ u8 *path = va_arg (*args, u8 *);
+ int i, in_rule;
+ in_rule = 0;
+ for (i = 0; i < vec_len (path); i++)
+ {
+ switch (path[i])
+ {
+ case '%':
+ in_rule = 1;
+ vec_add1 (s, '<'); /* start of <RULE> */
+ break;
+
+ case '_':
+ /* _ -> space in rules. */
+ vec_add1 (s, in_rule ? ' ' : '_');
+ break;
+
+ case ' ':
+ if (in_rule)
+ {
+ vec_add1 (s, '>'); /* end of <RULE> */
+ in_rule = 0;
+ }
+ vec_add1 (s, ' ');
+ break;
+
+ default:
+ vec_add1 (s, path[i]);
+ break;
+ }
+ }
+
+ if (in_rule)
+ vec_add1 (s, '>'); /* terminate <RULE> */
+
+ return s;
+}
+
+static vlib_cli_command_t *
+all_subs (vlib_cli_main_t * cm, vlib_cli_command_t * subs, u32 command_index)
+{
+ vlib_cli_command_t *c = vec_elt_at_index (cm->commands, command_index);
+ vlib_cli_sub_command_t *sc;
+ vlib_cli_sub_rule_t *sr;
+
+ if (c->function)
+ vec_add1 (subs, c[0]);
+
+ vec_foreach (sr, c->sub_rules)
+ subs = all_subs (cm, subs, sr->command_index);
+ vec_foreach (sc, c->sub_commands) subs = all_subs (cm, subs, sc->index);
+
+ return subs;
+}
+
+static int
+vlib_cli_cmp_rule (void *a1, void *a2)
+{
+ vlib_cli_sub_rule_t *r1 = a1;
+ vlib_cli_sub_rule_t *r2 = a2;
+
+ return vec_cmp (r1->name, r2->name);
+}
+
+static int
+vlib_cli_cmp_command (void *a1, void *a2)
+{
+ vlib_cli_command_t *c1 = a1;
+ vlib_cli_command_t *c2 = a2;
+
+ return vec_cmp (c1->path, c2->path);
+}
+
+static clib_error_t *
+vlib_cli_dispatch_sub_commands (vlib_main_t * vm,
+ vlib_cli_main_t * cm,
+ unformat_input_t * input,
+ uword parent_command_index)
+{
+ vlib_cli_command_t *parent, *c;
+ clib_error_t *error = 0;
+ unformat_input_t sub_input;
+ u8 *string;
+ uword is_main_dispatch = cm == &vm->cli_main;
+
+ parent = vec_elt_at_index (cm->commands, parent_command_index);
+ if (is_main_dispatch && unformat (input, "help"))
+ {
+ uword help_at_end_of_line, i;
+
+ help_at_end_of_line =
+ unformat_check_input (input) == UNFORMAT_END_OF_INPUT;
+ while (1)
+ {
+ c = parent;
+ if (unformat_user
+ (input, unformat_vlib_cli_sub_command, vm, c, &parent))
+ ;
+
+ else if (!(unformat_check_input (input) == UNFORMAT_END_OF_INPUT))
+ goto unknown;
+
+ else
+ break;
+ }
+
+ /* help SUB-COMMAND => long format help.
+ "help" at end of line: show all commands. */
+ if (!help_at_end_of_line)
+ vlib_cli_output (vm, "%U", format_vlib_cli_command_help, c,
+ /* is_long */ 1);
+
+ else if (vec_len (c->sub_commands) + vec_len (c->sub_rules) == 0)
+ vlib_cli_output (vm, "%v: no sub-commands", c->path);
+
+ else
+ {
+ vlib_cli_sub_command_t *sc;
+ vlib_cli_sub_rule_t *sr, *subs;
+
+ subs = vec_dup (c->sub_rules);
+
+ /* Add in rules if any. */
+ vec_foreach (sc, c->sub_commands)
+ {
+ vec_add2 (subs, sr, 1);
+ sr->name = sc->name;
+ sr->command_index = sc->index;
+ sr->rule_index = ~0;
+ }
+
+ vec_sort_with_function (subs, vlib_cli_cmp_rule);
+
+ for (i = 0; i < vec_len (subs); i++)
+ {
+ vlib_cli_command_t *d;
+ vlib_cli_parse_rule_t *r;
+
+ d = vec_elt_at_index (cm->commands, subs[i].command_index);
+ r =
+ subs[i].rule_index != ~0 ? vec_elt_at_index (cm->parse_rules,
+ subs
+ [i].rule_index) :
+ 0;
+
+ if (r)
+ vlib_cli_output
+ (vm, " %-30U %U",
+ format_vlib_cli_parse_rule_name, r,
+ format_vlib_cli_command_help, d, /* is_long */ 0);
+ else
+ vlib_cli_output
+ (vm, " %-30v %U",
+ subs[i].name,
+ format_vlib_cli_command_help, d, /* is_long */ 0);
+ }
+
+ vec_free (subs);
+ }
+ }
+
+ else if (is_main_dispatch
+ && (unformat (input, "choices") || unformat (input, "?")))
+ {
+ vlib_cli_command_t *sub, *subs;
+
+ subs = all_subs (cm, 0, parent_command_index);
+ vec_sort_with_function (subs, vlib_cli_cmp_command);
+ vec_foreach (sub, subs)
+ vlib_cli_output (vm, " %-40U %U",
+ format_vlib_cli_path, sub->path,
+ format_vlib_cli_command_help, sub, /* is_long */ 0);
+ vec_free (subs);
+ }
+
+ else if (unformat (input, "comment %v", &string))
+ {
+ vec_free (string);
+ }
+
+ else if (unformat (input, "uncomment %U",
+ unformat_vlib_cli_sub_input, &sub_input))
+ {
+ error =
+ vlib_cli_dispatch_sub_commands (vm, cm, &sub_input,
+ parent_command_index);
+ unformat_free (&sub_input);
+ }
+
+ else
+ if (unformat_user (input, unformat_vlib_cli_sub_command, vm, parent, &c))
+ {
+ unformat_input_t *si;
+ uword has_sub_commands =
+ vec_len (c->sub_commands) + vec_len (c->sub_rules) > 0;
+
+ si = input;
+ if (unformat_user (input, unformat_vlib_cli_sub_input, &sub_input))
+ si = &sub_input;
+
+ if (has_sub_commands)
+ error = vlib_cli_dispatch_sub_commands (vm, cm, si, c - cm->commands);
+
+ if (has_sub_commands && !error)
+ /* Found valid sub-command. */ ;
+
+ else if (c->function)
+ {
+ clib_error_t *c_error;
+
+ /* Skip white space for benefit of called function. */
+ unformat_skip_white_space (si);
+
+ if (unformat (si, "?"))
+ {
+ vlib_cli_output (vm, " %-40U %U", format_vlib_cli_path, c->path, format_vlib_cli_command_help, c, /* is_long */
+ 0);
+ }
+ else
+ {
+ if (!c->is_mp_safe)
+ vlib_worker_thread_barrier_sync (vm);
+
+ c_error = c->function (vm, si, c);
+
+ if (!c->is_mp_safe)
+ vlib_worker_thread_barrier_release (vm);
+
+ if (c_error)
+ {
+ error =
+ clib_error_return (0, "%v: %v", c->path, c_error->what);
+ clib_error_free (c_error);
+ /* Free sub input. */
+ if (si != input)
+ unformat_free (si);
+
+ return error;
+ }
+ }
+
+ /* Free any previous error. */
+ clib_error_free (error);
+ }
+
+ else if (!error)
+ error = clib_error_return (0, "%v: no sub-commands", c->path);
+
+ /* Free sub input. */
+ if (si != input)
+ unformat_free (si);
+ }
+
+ else
+ goto unknown;
+
+ return error;
+
+unknown:
+ if (parent->path)
+ return clib_error_return (0, "%v: unknown input `%U'", parent->path,
+ format_unformat_error, input);
+ else
+ return clib_error_return (0, "unknown input `%U'", format_unformat_error,
+ input);
+}
+
+
+void vlib_unix_error_report (vlib_main_t *, clib_error_t *)
+ __attribute__ ((weak));
+
+void
+vlib_unix_error_report (vlib_main_t * vm, clib_error_t * error)
+{
+}
+
+/* Process CLI input. */
+void
+vlib_cli_input (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_output_function_t * function, uword function_arg)
+{
+ vlib_process_t *cp = vlib_get_current_process (vm);
+ vlib_cli_main_t *cm = &vm->cli_main;
+ clib_error_t *error;
+ vlib_cli_output_function_t *save_function;
+ uword save_function_arg;
+
+ save_function = cp->output_function;
+ save_function_arg = cp->output_function_arg;
+
+ cp->output_function = function;
+ cp->output_function_arg = function_arg;
+
+ do
+ {
+ vec_reset_length (cm->parse_rule_data);
+ error = vlib_cli_dispatch_sub_commands (vm, &vm->cli_main, input, /* parent */
+ 0);
+ }
+ while (!error && !unformat (input, "%U", unformat_eof));
+
+ if (error)
+ {
+ vlib_cli_output (vm, "%v", error->what);
+ vlib_unix_error_report (vm, error);
+ clib_error_free (error);
+ }
+
+ cp->output_function = save_function;
+ cp->output_function_arg = save_function_arg;
+}
+
+/* Output to current CLI connection. */
+void
+vlib_cli_output (vlib_main_t * vm, char *fmt, ...)
+{
+ vlib_process_t *cp = vlib_get_current_process (vm);
+ va_list va;
+ u8 *s;
+
+ va_start (va, fmt);
+ s = va_format (0, fmt, &va);
+ va_end (va);
+
+ /* Terminate with \n if not present. */
+ if (vec_len (s) > 0 && s[vec_len (s) - 1] != '\n')
+ vec_add1 (s, '\n');
+
+ if ((!cp) || (!cp->output_function))
+ fformat (stdout, "%v", s);
+ else
+ cp->output_function (cp->output_function_arg, s, vec_len (s));
+
+ vec_free (s);
+}
+
+static clib_error_t *
+show_memory_usage (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ int verbose = 0;
+ clib_error_t *error;
+ u32 index = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "verbose"))
+ verbose = 1;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ return error;
+ }
+ }
+
+ /* *INDENT-OFF* */
+ foreach_vlib_main (
+ ({
+ vlib_cli_output (vm, "Thread %d %v\n", index, vlib_worker_threads[index].name);
+ vlib_cli_output (vm, "%U\n", format_mheap, clib_per_cpu_mheaps[index], verbose);
+ index++;
+ }));
+ /* *INDENT-ON* */
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_memory_usage_command, static) = {
+ .path = "show memory",
+ .short_help = "Show current memory usage",
+ .function = show_memory_usage,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+show_cpu (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+#define _(a,b,c) vlib_cli_output (vm, "%-25s " b, a ":", c);
+ _("Model name", "%U", format_cpu_model_name);
+ _("Microarchitecture", "%U", format_cpu_uarch);
+ _("Flags", "%U", format_cpu_flags);
+ _("Base frequency", "%.2f GHz",
+ ((f64) vm->clib_time.clocks_per_second) * 1e-9);
+#undef _
+ return 0;
+}
+
+/*?
+ * Displays various information about the CPU.
+ *
+ * @cliexpar
+ * @cliexstart{show cpu}
+ * Model name: Intel(R) Xeon(R) CPU E5-2667 v4 @ 3.20GHz
+ * Microarchitecture: Broadwell (Broadwell-EP/EX)
+ * Flags: sse3 ssse3 sse41 sse42 avx avx2 aes
+ * Base Frequency: 3.20 GHz
+ * @cliexend
+?*/
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_cpu_command, static) = {
+ .path = "show cpu",
+ .short_help = "Show cpu information",
+ .function = show_cpu,
+};
+
+/* *INDENT-ON* */
+static clib_error_t *
+enable_disable_memory_trace (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ clib_error_t *error = 0;
+ int enable;
+
+ if (!unformat_user (input, unformat_vlib_enable_disable, &enable))
+ {
+ error = clib_error_return (0, "expecting enable/on or disable/off");
+ goto done;
+ }
+
+ clib_mem_trace (enable);
+
+done:
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (enable_disable_memory_trace_command, static) = {
+ .path = "memory-trace",
+ .short_help = "Enable/disable memory allocation trace",
+ .function = enable_disable_memory_trace,
+};
+/* *INDENT-ON* */
+
+
+static clib_error_t *
+test_heap_validate (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ clib_error_t *error = 0;
+ void *heap;
+ mheap_t *mheap;
+
+ if (unformat (input, "on"))
+ {
+ /* *INDENT-OFF* */
+ foreach_vlib_main({
+ heap = clib_per_cpu_mheaps[this_vlib_main->cpu_index];
+ mheap = mheap_header(heap);
+ mheap->flags |= MHEAP_FLAG_VALIDATE;
+ // Turn off small object cache because it delays detection of errors
+ mheap->flags &= ~MHEAP_FLAG_SMALL_OBJECT_CACHE;
+ });
+ /* *INDENT-ON* */
+
+ }
+ else if (unformat (input, "off"))
+ {
+ /* *INDENT-OFF* */
+ foreach_vlib_main({
+ heap = clib_per_cpu_mheaps[this_vlib_main->cpu_index];
+ mheap = mheap_header(heap);
+ mheap->flags &= ~MHEAP_FLAG_VALIDATE;
+ mheap->flags |= MHEAP_FLAG_SMALL_OBJECT_CACHE;
+ });
+ /* *INDENT-ON* */
+ }
+ else if (unformat (input, "now"))
+ {
+ /* *INDENT-OFF* */
+ foreach_vlib_main({
+ heap = clib_per_cpu_mheaps[this_vlib_main->cpu_index];
+ mheap = mheap_header(heap);
+ mheap_validate(heap);
+ });
+ /* *INDENT-ON* */
+ vlib_cli_output (vm, "heap validation complete");
+
+ }
+ else
+ {
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (cmd_test_heap_validate,static) = {
+ .path = "test heap-validate",
+ .short_help = "<on/off/now> validate heap on future allocs/frees or right now",
+ .function = test_heap_validate,
+};
+/* *INDENT-ON* */
+
+#ifdef TEST_CODE
+/*
+ * A trivial test harness to verify the per-process output_function
+ * is working correcty.
+ */
+
+static clib_error_t *
+sleep_ten_seconds (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ u16 i;
+ u16 my_id = rand ();
+
+ vlib_cli_output (vm, "Starting 10 seconds sleep with id %u\n", my_id);
+
+ for (i = 0; i < 10; i++)
+ {
+ vlib_process_wait_for_event_or_clock (vm, 1.0);
+ vlib_cli_output (vm, "Iteration number %u, my id: %u\n", i, my_id);
+ }
+ vlib_cli_output (vm, "Done with sleep with id %u\n", my_id);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ping_command, static) = {
+ .path = "test sleep",
+ .function = sleep_ten_seconds,
+ .short_help = "Sleep for 10 seconds",
+};
+/* *INDENT-ON* */
+#endif /* ifdef TEST_CODE */
+
+static uword
+vlib_cli_normalize_path (char *input, char **result)
+{
+ char *i = input;
+ char *s = 0;
+ uword l = 0;
+ uword index_of_last_space = ~0;
+
+ while (*i != 0)
+ {
+ u8 c = *i++;
+ /* Multiple white space -> single space. */
+ switch (c)
+ {
+ case ' ':
+ case '\t':
+ case '\n':
+ case '\r':
+ if (l > 0 && s[l - 1] != ' ')
+ {
+ vec_add1 (s, ' ');
+ l++;
+ }
+ break;
+
+ default:
+ if (l > 0 && s[l - 1] == ' ')
+ index_of_last_space = vec_len (s);
+ vec_add1 (s, c);
+ l++;
+ break;
+ }
+ }
+
+ /* Remove any extra space at end. */
+ if (l > 0 && s[l - 1] == ' ')
+ _vec_len (s) -= 1;
+
+ *result = s;
+ return index_of_last_space;
+}
+
+always_inline uword
+parent_path_len (char *path)
+{
+ word i;
+ for (i = vec_len (path) - 1; i >= 0; i--)
+ {
+ if (path[i] == ' ')
+ return i;
+ }
+ return ~0;
+}
+
+static void
+add_sub_command (vlib_cli_main_t * cm, uword parent_index, uword child_index)
+{
+ vlib_cli_command_t *p, *c;
+ vlib_cli_sub_command_t *sub_c;
+ u8 *sub_name;
+ word i, l;
+
+ p = vec_elt_at_index (cm->commands, parent_index);
+ c = vec_elt_at_index (cm->commands, child_index);
+
+ l = parent_path_len (c->path);
+ if (l == ~0)
+ sub_name = vec_dup ((u8 *) c->path);
+ else
+ {
+ ASSERT (l + 1 < vec_len (c->path));
+ sub_name = 0;
+ vec_add (sub_name, c->path + l + 1, vec_len (c->path) - (l + 1));
+ }
+
+ if (sub_name[0] == '%')
+ {
+ uword *q;
+ vlib_cli_sub_rule_t *sr;
+
+ /* Remove %. */
+ vec_delete (sub_name, 1, 0);
+
+ if (!p->sub_rule_index_by_name)
+ p->sub_rule_index_by_name = hash_create_vec ( /* initial length */ 32,
+ sizeof (sub_name[0]),
+ sizeof (uword));
+ q = hash_get_mem (p->sub_rule_index_by_name, sub_name);
+ if (q)
+ {
+ sr = vec_elt_at_index (p->sub_rules, q[0]);
+ ASSERT (sr->command_index == child_index);
+ return;
+ }
+
+ q = hash_get_mem (cm->parse_rule_index_by_name, sub_name);
+ if (!q)
+ {
+ clib_error ("reference to unknown rule `%%%v' in path `%v'",
+ sub_name, c->path);
+ return;
+ }
+
+ hash_set_mem (p->sub_rule_index_by_name, sub_name,
+ vec_len (p->sub_rules));
+ vec_add2 (p->sub_rules, sr, 1);
+ sr->name = sub_name;
+ sr->rule_index = q[0];
+ sr->command_index = child_index;
+ return;
+ }
+
+ if (!p->sub_command_index_by_name)
+ p->sub_command_index_by_name = hash_create_vec ( /* initial length */ 32,
+ sizeof (c->path[0]),
+ sizeof (uword));
+
+ /* Check if sub-command has already been created. */
+ if (hash_get_mem (p->sub_command_index_by_name, sub_name))
+ {
+ vec_free (sub_name);
+ return;
+ }
+
+ vec_add2 (p->sub_commands, sub_c, 1);
+ sub_c->index = child_index;
+ sub_c->name = sub_name;
+ hash_set_mem (p->sub_command_index_by_name, sub_c->name,
+ sub_c - p->sub_commands);
+
+ vec_validate (p->sub_command_positions, vec_len (sub_c->name) - 1);
+ for (i = 0; i < vec_len (sub_c->name); i++)
+ {
+ int n;
+ vlib_cli_parse_position_t *pos;
+
+ pos = vec_elt_at_index (p->sub_command_positions, i);
+
+ if (!pos->bitmaps)
+ pos->min_char = sub_c->name[i];
+
+ n = sub_c->name[i] - pos->min_char;
+ if (n < 0)
+ {
+ pos->min_char = sub_c->name[i];
+ vec_insert (pos->bitmaps, -n, 0);
+ n = 0;
+ }
+
+ vec_validate (pos->bitmaps, n);
+ pos->bitmaps[n] =
+ clib_bitmap_ori (pos->bitmaps[n], sub_c - p->sub_commands);
+ }
+}
+
+static void
+vlib_cli_make_parent (vlib_cli_main_t * cm, uword ci)
+{
+ uword p_len, pi, *p;
+ char *p_path;
+ vlib_cli_command_t *c, *parent;
+
+ /* Root command (index 0) should have already been added. */
+ ASSERT (vec_len (cm->commands) > 0);
+
+ c = vec_elt_at_index (cm->commands, ci);
+ p_len = parent_path_len (c->path);
+
+ /* No space? Parent is root command. */
+ if (p_len == ~0)
+ {
+ add_sub_command (cm, 0, ci);
+ return;
+ }
+
+ p_path = 0;
+ vec_add (p_path, c->path, p_len);
+
+ p = hash_get_mem (cm->command_index_by_path, p_path);
+
+ /* Parent exists? */
+ if (!p)
+ {
+ /* Parent does not exist; create it. */
+ vec_add2 (cm->commands, parent, 1);
+ parent->path = p_path;
+ hash_set_mem (cm->command_index_by_path, parent->path,
+ parent - cm->commands);
+ pi = parent - cm->commands;
+ }
+ else
+ {
+ pi = p[0];
+ vec_free (p_path);
+ }
+
+ add_sub_command (cm, pi, ci);
+
+ /* Create parent's parent. */
+ if (!p)
+ vlib_cli_make_parent (cm, pi);
+}
+
+always_inline uword
+vlib_cli_command_is_empty (vlib_cli_command_t * c)
+{
+ return (c->long_help == 0 && c->short_help == 0 && c->function == 0);
+}
+
+clib_error_t *
+vlib_cli_register (vlib_main_t * vm, vlib_cli_command_t * c)
+{
+ vlib_cli_main_t *cm = &vm->cli_main;
+ clib_error_t *error = 0;
+ uword ci, *p;
+ char *normalized_path;
+
+ if ((error = vlib_call_init_function (vm, vlib_cli_init)))
+ return error;
+
+ (void) vlib_cli_normalize_path (c->path, &normalized_path);
+
+ if (!cm->command_index_by_path)
+ cm->command_index_by_path = hash_create_vec ( /* initial length */ 32,
+ sizeof (c->path[0]),
+ sizeof (uword));
+
+ /* See if command already exists with given path. */
+ p = hash_get_mem (cm->command_index_by_path, normalized_path);
+ if (p)
+ {
+ vlib_cli_command_t *d;
+
+ ci = p[0];
+ d = vec_elt_at_index (cm->commands, ci);
+
+ /* If existing command was created via vlib_cli_make_parent
+ replaced it with callers data. */
+ if (vlib_cli_command_is_empty (d))
+ {
+ vlib_cli_command_t save = d[0];
+
+ ASSERT (!vlib_cli_command_is_empty (c));
+
+ /* Copy callers fields. */
+ d[0] = c[0];
+
+ /* Save internal fields. */
+ d->path = save.path;
+ d->sub_commands = save.sub_commands;
+ d->sub_command_index_by_name = save.sub_command_index_by_name;
+ d->sub_command_positions = save.sub_command_positions;
+ d->sub_rules = save.sub_rules;
+ }
+ else
+ error =
+ clib_error_return (0, "duplicate command name with path %v",
+ normalized_path);
+
+ vec_free (normalized_path);
+ if (error)
+ return error;
+ }
+ else
+ {
+ /* Command does not exist: create it. */
+
+ /* Add root command (index 0). */
+ if (vec_len (cm->commands) == 0)
+ {
+ /* Create command with index 0; path is empty string. */
+ vec_resize (cm->commands, 1);
+ }
+
+ ci = vec_len (cm->commands);
+ hash_set_mem (cm->command_index_by_path, normalized_path, ci);
+ vec_add1 (cm->commands, c[0]);
+
+ c = vec_elt_at_index (cm->commands, ci);
+ c->path = normalized_path;
+
+ /* Don't inherit from registration. */
+ c->sub_commands = 0;
+ c->sub_command_index_by_name = 0;
+ c->sub_command_positions = 0;
+ }
+
+ vlib_cli_make_parent (cm, ci);
+ return 0;
+}
+
+clib_error_t *
+vlib_cli_register_parse_rule (vlib_main_t * vm, vlib_cli_parse_rule_t * r_reg)
+{
+ vlib_cli_main_t *cm = &vm->cli_main;
+ vlib_cli_parse_rule_t *r;
+ clib_error_t *error = 0;
+ u8 *r_name;
+ uword *p;
+
+ if (!cm->parse_rule_index_by_name)
+ cm->parse_rule_index_by_name = hash_create_vec ( /* initial length */ 32,
+ sizeof (r->name[0]),
+ sizeof (uword));
+
+ /* Make vector copy of name. */
+ r_name = format (0, "%s", r_reg->name);
+
+ if ((p = hash_get_mem (cm->parse_rule_index_by_name, r_name)))
+ {
+ vec_free (r_name);
+ return clib_error_return (0, "duplicate parse rule name `%s'",
+ r_reg->name);
+ }
+
+ vec_add2 (cm->parse_rules, r, 1);
+ r[0] = r_reg[0];
+ r->name = (char *) r_name;
+ hash_set_mem (cm->parse_rule_index_by_name, r->name, r - cm->parse_rules);
+
+ return error;
+}
+
+#if 0
+/* $$$ turn back on again someday, maybe */
+static clib_error_t *vlib_cli_register_parse_rules (vlib_main_t * vm,
+ vlib_cli_parse_rule_t *
+ lo,
+ vlib_cli_parse_rule_t *
+ hi)
+ __attribute__ ((unused))
+{
+ clib_error_t *error = 0;
+ vlib_cli_parse_rule_t *r;
+
+ for (r = lo; r < hi; r = clib_elf_section_data_next (r, 0))
+ {
+ if (!r->name || strlen (r->name) == 0)
+ {
+ error = clib_error_return (0, "parse rule with no name");
+ goto done;
+ }
+
+ error = vlib_cli_register_parse_rule (vm, r);
+ if (error)
+ goto done;
+ }
+
+done:
+ return error;
+}
+#endif
+
+static clib_error_t *
+vlib_cli_init (vlib_main_t * vm)
+{
+ vlib_cli_main_t *cm = &vm->cli_main;
+ clib_error_t *error = 0;
+ vlib_cli_command_t *cmd;
+
+ cmd = cm->cli_command_registrations;
+
+ while (cmd)
+ {
+ error = vlib_cli_register (vm, cmd);
+ if (error)
+ return error;
+ cmd = cmd->next_cli_command;
+ }
+ return error;
+}
+
+VLIB_INIT_FUNCTION (vlib_cli_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */