1 files changed, 147 insertions, 0 deletions
diff --git a/src/plugins/prom/prom_cli.c b/src/plugins/prom/prom_cli.c
new file mode 100644
index 00000000000..453e8a066fc
--- /dev/null
+++ b/src/plugins/prom/prom_cli.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2022 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.
+ */
+
+#include <prom/prom.h>
+
+static uword
+unformat_stats_patterns (unformat_input_t *input, va_list *args)
+{
+  u8 ***patterns = va_arg (*args, u8 ***);
+  u8 *pattern;
+
+  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (input, "%s", &pattern))
+	vec_add1 (*patterns, pattern);
+      else
+	return 0;
+    }
+  return 1;
+}
+
+static clib_error_t *
+prom_patterns_command_fn (vlib_main_t *vm, unformat_input_t *input,
+			  vlib_cli_command_t *cmd)
+{
+  unformat_input_t _line_input, *line_input = &_line_input;
+  u8 is_clear = 0, is_show = 0, **pattern = 0;
+  clib_error_t *error = 0;
+
+  if (!unformat_user (input, unformat_line_input, line_input))
+    return 0;
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (line_input, "show"))
+	is_show = 1;
+      else if (unformat (line_input, "clear"))
+	is_clear = 1;
+      else if (unformat (line_input, "add %U", unformat_stats_patterns,
+			 &pattern))
+	{
+	  prom_stat_patterns_add (pattern);
+	  vec_free (pattern);
+	}
+      else
+	{
+	  error = clib_error_return (0, "unknown input `%U'",
+				     format_unformat_error, line_input);
+	  break;
+	}
+    }
+  unformat_free (line_input);
+
+  if (error)
+    return error;
+
+  if (is_clear)
+    prom_stat_patterns_free ();
+
+  if (is_show)
+    {
+      u8 **patterns = prom_stat_patterns_get ();
+      vec_foreach (pattern, patterns)
+	vlib_cli_output (vm, " %v\n", *pattern);
+    }
+
+  return 0;
+}
+
+VLIB_CLI_COMMAND (prom_patterns_command, static) = {
+  .path = "prom patterns",
+  .short_help = "prom patterns [show] [clear] [add <patterns>...]",
+  .function = prom_patterns_command_fn,
+};
+
+static clib_error_t *
+prom_command_fn (vlib_main_t *vm, unformat_input_t *input,
+		 vlib_cli_command_t *cmd)
+{
+  unformat_input_t _line_input, *line_input = &_line_input;
+  prom_main_t *pm = prom_get_main ();
+  clib_error_t *error = 0;
+  u8 **patterns = 0;
+  u8 is_enable = 0;
+
+  if (!unformat_user (input, unformat_line_input, line_input))
+    goto no_input;
+
+  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+    {
+      if (unformat (line_input, "enable"))
+	is_enable = 1;
+      else if (unformat (line_input, "min-scrape-interval %f",
+			 &pm->min_scrape_interval))
+	;
+      else if (unformat (line_input, "used-only"))
+	pm->used_only = 1;
+      else if (unformat (line_input, "stat-patterns %U",
+			 unformat_stats_patterns, &patterns))
+	prom_stat_patterns_set (patterns);
+      else
+	{
+	  error = clib_error_return (0, "unknown input `%U'",
+				     format_unformat_error, line_input);
+	  break;
+	}
+    }
+
+  unformat_free (line_input);
+
+  if (error)
+    return error;
+
+no_input:
+
+  if (is_enable && !pm->is_enabled)
+    prom_enable (vm);
+
+  return 0;
+}
+
+VLIB_CLI_COMMAND (prom_enable_command, static) = {
+  .path = "prom",
+  .short_help = "prom [enable] [min-scrape-interval <n>] [used-only]"
+		"[stat-patterns <patterns>...]",
+  .function = prom_command_fn,
+};
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */