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
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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 * error.c: VLIB error handler
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,
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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,
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33 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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37 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 #include <vlib/vlib.h>
41 #include <vppinfra/heap.h>
44 vlib_error_drop_buffers (vlib_main_t * vm,
45 vlib_node_runtime_t * node,
47 u32 next_buffer_stride,
53 u32 n_left_this_frame, n_buffers_left, * args, n_args_left;
54 vlib_error_t drop_error;
56 drop_error = vlib_error_set (drop_error_node, drop_error_code);
58 n_buffers_left = n_buffers;
59 while (n_buffers_left > 0)
61 vlib_get_next_frame (vm, node, next_index, args, n_args_left);
63 n_left_this_frame = clib_min (n_buffers_left, n_args_left);
64 n_buffers_left -= n_left_this_frame;
65 n_args_left -= n_left_this_frame;
67 while (n_left_this_frame >= 4)
69 u32 bi0, bi1, bi2, bi3;
70 vlib_buffer_t * b0, * b1, * b2, * b3;
72 args[0] = bi0 = buffers[0];
73 args[1] = bi1 = buffers[1];
74 args[2] = bi2 = buffers[2];
75 args[3] = bi3 = buffers[3];
77 b0 = vlib_get_buffer (vm, bi0);
78 b1 = vlib_get_buffer (vm, bi1);
79 b2 = vlib_get_buffer (vm, bi2);
80 b3 = vlib_get_buffer (vm, bi3);
82 b0->error = drop_error;
83 b1->error = drop_error;
84 b2->error = drop_error;
85 b3->error = drop_error;
89 n_left_this_frame -= 4;
92 while (n_left_this_frame >= 1)
97 args[0] = bi0 = buffers[0];
99 b0 = vlib_get_buffer (vm, bi0);
100 b0->error = drop_error;
104 n_left_this_frame -= 1;
107 vlib_put_next_frame (vm, node, next_index, n_args_left);
113 /* Convenience node to drop a vector of buffers with a "misc error". */
115 misc_drop_buffers (vlib_main_t * vm,
116 vlib_node_runtime_t * node,
117 vlib_frame_t * frame)
119 return vlib_error_drop_buffers (vm, node,
120 vlib_frame_args (frame),
121 /* buffer stride */ 1,
128 static char * misc_drop_buffers_error_strings[] = {
129 [0] = "misc. errors",
132 VLIB_REGISTER_NODE (misc_drop_buffers_node,static) = {
133 .function = misc_drop_buffers,
134 .name = "misc-drop-buffers",
135 .vector_size = sizeof (u32),
141 .error_strings = misc_drop_buffers_error_strings,
144 /* Reserves given number of error codes for given node. */
145 void vlib_register_errors (vlib_main_t * vm,
148 char * error_strings[])
150 vlib_error_main_t * em = &vm->error_main;
151 vlib_node_t * n = vlib_get_node (vm, node_index);
154 /* Free up any previous error strings. */
156 heap_dealloc (em->error_strings_heap, n->error_heap_handle);
158 n->n_errors = n_errors;
159 n->error_strings = error_strings;
164 n->error_heap_index =
165 heap_alloc (em->error_strings_heap, n_errors,
166 n->error_heap_handle);
168 l = vec_len (em->error_strings_heap);
170 memcpy (vec_elt_at_index (em->error_strings_heap, n->error_heap_index),
172 n_errors * sizeof (error_strings[0]));
174 /* Allocate a counter/elog type for each error. */
175 vec_validate (em->counters, l - 1);
176 vec_validate (vm->error_elog_event_types, l - 1);
178 /* Zero counters for re-registrations of errors. */
179 if (n->error_heap_index + n_errors <= vec_len (em->counters_last_clear))
180 memcpy (em->counters + n->error_heap_index,
181 em->counters_last_clear + n->error_heap_index,
182 n_errors * sizeof (em->counters[0]));
184 memset (em->counters + n->error_heap_index,
186 n_errors * sizeof (em->counters[0]));
192 memset (&t, 0, sizeof (t));
193 for (i = 0; i < n_errors; i++)
195 t.format = (char *) format (0, "%v %s: %%d",
198 vm->error_elog_event_types[n->error_heap_index + i] = t;
203 static clib_error_t *
204 show_errors (vlib_main_t * vm,
205 unformat_input_t * input,
206 vlib_cli_command_t * cmd)
208 vlib_error_main_t * em = &vm->error_main;
213 vlib_cli_output (vm, "%=16s%=40s%=20s", "Count", "Node", "Reason");
215 for (ni = 0; ni < vec_len (vm->node_main.nodes); ni++)
217 n = vlib_get_node (vm, ni);
218 for (code = 0; code < n->n_errors; code++)
220 i = n->error_heap_index + code;
222 if (i < vec_len (em->counters_last_clear))
223 c -= em->counters_last_clear[i];
228 vlib_cli_output (vm, "%16Ld%=40v%s", c, n->name, em->error_strings_heap[i]);
235 VLIB_CLI_COMMAND (cli_show_errors, static) = {
236 .path = "show errors",
237 .short_help = "Show error counts",
238 .function = show_errors,
241 VLIB_CLI_COMMAND (cli_show_node_counters, static) = {
242 .path = "show node counters",
243 .short_help = "Show node counters",
244 .function = show_errors,
247 static clib_error_t *
248 clear_error_counters (vlib_main_t * vm,
249 unformat_input_t * input,
250 vlib_cli_command_t * cmd)
252 vlib_error_main_t * em = &vm->error_main;
255 vec_validate (em->counters_last_clear, vec_len (em->counters) - 1);
256 for (i = 0; i < vec_len (em->counters); i++)
257 em->counters_last_clear[i] = em->counters[i];
261 VLIB_CLI_COMMAND (cli_clear_error_counters, static) = {
262 .path = "clear errors",
263 .short_help = "Clear error counters",
264 .function = clear_error_counters,
267 VLIB_CLI_COMMAND (cli_clear_node_counters, static) = {
268 .path = "clear node counters",
269 .short_help = "Clear node counters",
270 .function = clear_error_counters,