2 * Copyright (c) 2016 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.
17 #include <vnet/ip/ping.h>
18 #include <vnet/fib/ip6_fib.h>
19 #include <vnet/fib/ip4_fib.h>
20 #include <vnet/fib/fib_entry.h>
24 * @brief IPv4 and IPv6 ICMP Ping.
26 * This file contains code to suppport IPv4 or IPv6 ICMP ECHO_REQUEST to
33 format_icmp_echo_trace (u8 * s, va_list * va)
35 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
36 CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
37 icmp_echo_trace_t *t = va_arg (*va, icmp_echo_trace_t *);
39 s = format (s, "ICMP echo id %d seq %d%s",
40 clib_net_to_host_u16 (t->id),
41 clib_net_to_host_u16 (t->seq), t->bound ? "" : " (unknown)");
47 * If we can find the ping run by an ICMP ID, then we send the signal
48 * to the CLI process referenced by that ping run, alongside with
49 * a freshly made copy of the packet.
50 * I opted for a packet copy to keep the main packet processing path
51 * the same as for all the other nodes.
56 signal_ip46_icmp_reply_event (vlib_main_t * vm,
57 u8 event_type, vlib_buffer_t * b0)
59 ping_main_t *pm = &ping_main;
65 case PING_RESPONSE_IP4:
67 icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
68 net_icmp_id = h0->icmp_echo.id;
71 case PING_RESPONSE_IP6:
73 icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
74 net_icmp_id = h0->icmp_echo.id;
81 uword *p = hash_get (pm->ping_run_by_icmp_id,
82 clib_net_to_host_u16 (net_icmp_id));
86 ping_run_t *pr = vec_elt_at_index (pm->ping_runs, p[0]);
87 if (vlib_buffer_alloc (vm, &bi0_copy, 1) == 1)
89 void *dst = vlib_buffer_get_current (vlib_get_buffer (vm, bi0_copy));
90 clib_memcpy (dst, vlib_buffer_get_current (b0), b0->current_length);
92 /* If buffer_alloc failed, bi0_copy == 0 - just signaling an event. */
94 vlib_process_signal_event (vm, pr->cli_process_id, event_type, bi0_copy);
99 * Process ICMPv6 echo replies
102 ip6_icmp_echo_reply_node_fn (vlib_main_t * vm,
103 vlib_node_runtime_t * node, vlib_frame_t * frame)
105 u32 n_left_from, *from;
107 from = vlib_frame_vector_args (frame); /* array of buffer indices */
108 n_left_from = frame->n_vectors; /* number of buffer indices */
110 while (n_left_from > 0)
117 b0 = vlib_get_buffer (vm, bi0);
119 next0 = signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP6, b0) ?
120 ICMP6_ECHO_REPLY_NEXT_DROP : ICMP6_ECHO_REPLY_NEXT_PUNT;
122 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
124 icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
125 icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
126 tr->id = h0->icmp_echo.id;
127 tr->seq = h0->icmp_echo.seq;
128 tr->bound = (next0 == ICMP6_ECHO_REPLY_NEXT_DROP);
131 /* push this pkt to the next graph node */
132 vlib_set_next_frame_buffer (vm, node, next0, bi0);
138 return frame->n_vectors;
142 VLIB_REGISTER_NODE (ip6_icmp_echo_reply_node, static) =
144 .function = ip6_icmp_echo_reply_node_fn,
145 .name = "ip6-icmp-echo-reply",
146 .vector_size = sizeof (u32),
147 .format_trace = format_icmp_echo_trace,
148 .n_next_nodes = ICMP6_ECHO_REPLY_N_NEXT,
150 [ICMP6_ECHO_REPLY_NEXT_DROP] = "error-drop",
151 [ICMP6_ECHO_REPLY_NEXT_PUNT] = "error-punt",
157 * Process ICMPv4 echo replies
160 ip4_icmp_echo_reply_node_fn (vlib_main_t * vm,
161 vlib_node_runtime_t * node, vlib_frame_t * frame)
163 u32 n_left_from, *from;
165 from = vlib_frame_vector_args (frame); /* array of buffer indices */
166 n_left_from = frame->n_vectors; /* number of buffer indices */
168 while (n_left_from > 0)
175 b0 = vlib_get_buffer (vm, bi0);
177 next0 = signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP4, b0) ?
178 ICMP4_ECHO_REPLY_NEXT_DROP : ICMP4_ECHO_REPLY_NEXT_PUNT;
180 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
182 icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
183 icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
184 tr->id = h0->icmp_echo.id;
185 tr->seq = h0->icmp_echo.seq;
186 tr->bound = (next0 == ICMP4_ECHO_REPLY_NEXT_DROP);
189 /* push this pkt to the next graph node */
190 vlib_set_next_frame_buffer (vm, node, next0, bi0);
196 return frame->n_vectors;
200 VLIB_REGISTER_NODE (ip4_icmp_echo_reply_node, static) =
202 .function = ip4_icmp_echo_reply_node_fn,
203 .name = "ip4-icmp-echo-reply",
204 .vector_size = sizeof (u32),
205 .format_trace = format_icmp_echo_trace,
206 .n_next_nodes = ICMP4_ECHO_REPLY_N_NEXT,
208 [ICMP4_ECHO_REPLY_NEXT_DROP] = "error-drop",
209 [ICMP4_ECHO_REPLY_NEXT_PUNT] = "error-punt",
214 char *ip6_lookup_next_nodes[] = IP6_LOOKUP_NEXT_NODES;
215 char *ip4_lookup_next_nodes[] = IP4_LOOKUP_NEXT_NODES;
217 /* Fill in the ICMP ECHO structure, return the safety-checked and possibly shrunk data_len */
219 init_icmp46_echo_request (icmp46_echo_request_t * icmp46_echo,
220 u16 seq_host, u16 id_host, u16 data_len)
223 icmp46_echo->seq = clib_host_to_net_u16 (seq_host);
224 icmp46_echo->id = clib_host_to_net_u16 (id_host);
226 if (data_len > PING_MAXIMUM_DATA_SIZE)
227 data_len = PING_MAXIMUM_DATA_SIZE;
228 for (i = 0; i < data_len; i++)
229 icmp46_echo->data[i] = i % 256;
233 static send_ip46_ping_result_t
234 send_ip6_ping (vlib_main_t * vm, ip6_main_t * im,
235 u32 table_id, ip6_address_t * pa6,
236 u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len,
239 icmp6_echo_request_header_t *h0;
241 int bogus_length = 0;
245 vlib_buffer_free_list_t *fl;
247 if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
248 return SEND_PING_ALLOC_FAIL;
250 p0 = vlib_get_buffer (vm, bi0);
251 fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
252 vlib_buffer_init_for_free_list (p0, fl);
253 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0);
256 * if the user did not provide a source interface, use the any interface
257 * that the destination resolves via.
259 if (~0 == sw_if_index)
261 fib_node_index_t fib_entry_index;
264 fib_index = ip6_fib_index_from_table_id (table_id);
268 vlib_buffer_free (vm, &bi0, 1);
269 return SEND_PING_NO_TABLE;
272 fib_entry_index = ip6_fib_table_lookup (fib_index, pa6, 128);
273 sw_if_index = fib_entry_get_resolving_interface (fib_entry_index);
275 * Set the TX interface to force ip-lookup to use its table ID
277 vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index;
282 * force an IP lookup in the table bound to the user's chosen
285 vnet_buffer (p0)->sw_if_index[VLIB_TX] =
286 ip6_fib_table_get_index_for_sw_if_index (sw_if_index);
289 if (~0 == sw_if_index)
291 vlib_buffer_free (vm, &bi0, 1);
292 return SEND_PING_NO_INTERFACE;
295 vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index;
297 h0 = vlib_buffer_get_current (p0);
299 /* Fill in ip6 header fields */
300 h0->ip6.ip_version_traffic_class_and_flow_label =
301 clib_host_to_net_u32 (0x6 << 28);
302 h0->ip6.payload_length = 0; /* Set below */
303 h0->ip6.protocol = IP_PROTOCOL_ICMP6;
304 h0->ip6.hop_limit = 255;
305 h0->ip6.dst_address = *pa6;
306 h0->ip6.src_address = *pa6;
308 /* Fill in the correct source now */
309 ip6_address_t *a = ip6_interface_first_address (im, sw_if_index);
310 h0->ip6.src_address = a[0];
312 /* Fill in icmp fields */
313 h0->icmp.type = ICMP6_echo_request;
315 h0->icmp.checksum = 0;
318 init_icmp46_echo_request (&h0->icmp_echo, seq_host, id_host, data_len);
319 h0->icmp_echo.time_sent = vlib_time_now (vm);
321 /* Fix up the lengths */
322 h0->ip6.payload_length =
323 clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t));
325 p0->current_length = clib_net_to_host_u16 (h0->ip6.payload_length) +
326 STRUCT_OFFSET_OF (icmp6_echo_request_header_t, icmp);
328 /* Calculate the ICMP checksum */
329 h0->icmp.checksum = 0;
331 ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h0->ip6, &bogus_length);
333 /* Enqueue the packet right now */
334 f = vlib_get_frame_to_node (vm, ip6_lookup_node.index);
335 to_next = vlib_frame_vector_args (f);
338 vlib_put_frame_to_node (vm, ip6_lookup_node.index, f);
343 static send_ip46_ping_result_t
344 send_ip4_ping (vlib_main_t * vm,
349 u16 seq_host, u16 id_host, u16 data_len, u8 verbose)
351 icmp4_echo_request_header_t *h0;
353 ip_lookup_main_t *lm = &im->lookup_main;
358 vlib_buffer_free_list_t *fl;
360 if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
361 return SEND_PING_ALLOC_FAIL;
363 p0 = vlib_get_buffer (vm, bi0);
364 fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
365 vlib_buffer_init_for_free_list (p0, fl);
366 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0);
369 * if the user did not provide a source interface, use the any interface
370 * that the destination resolves via.
372 if (~0 == sw_if_index)
374 fib_node_index_t fib_entry_index;
377 fib_index = ip4_fib_index_from_table_id (table_id);
381 vlib_buffer_free (vm, &bi0, 1);
382 return SEND_PING_NO_TABLE;
386 ip4_fib_table_lookup (ip4_fib_get (fib_index), pa4, 32);
387 sw_if_index = fib_entry_get_resolving_interface (fib_entry_index);
389 * Set the TX interface to force ip-lookup to use the user's table ID
391 vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index;
396 * force an IP lookup in the table bound to the user's chosen
399 vnet_buffer (p0)->sw_if_index[VLIB_TX] =
400 ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
403 if (~0 == sw_if_index)
405 vlib_buffer_free (vm, &bi0, 1);
406 return SEND_PING_NO_INTERFACE;
409 vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index;
411 h0 = vlib_buffer_get_current (p0);
413 /* Fill in ip4 header fields */
414 h0->ip4.checksum = 0;
415 h0->ip4.ip_version_and_header_length = 0x45;
417 h0->ip4.length = 0; /* Set below */
418 h0->ip4.fragment_id = 0;
419 h0->ip4.flags_and_fragment_offset = 0;
421 h0->ip4.protocol = IP_PROTOCOL_ICMP;
422 h0->ip4.dst_address = *pa4;
423 h0->ip4.src_address = *pa4;
425 /* Fill in the correct source now */
426 if_add_index0 = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
427 if (PREDICT_TRUE (if_add_index0 != ~0))
429 ip_interface_address_t *if_add =
430 pool_elt_at_index (lm->if_address_pool, if_add_index0);
431 ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
432 h0->ip4.src_address = *if_ip;
435 vlib_cli_output (vm, "Source address: %U",
436 format_ip4_address, &h0->ip4.src_address);
440 /* Fill in icmp fields */
441 h0->icmp.type = ICMP4_echo_request;
443 h0->icmp.checksum = 0;
446 init_icmp46_echo_request (&h0->icmp_echo, seq_host, id_host, data_len);
447 h0->icmp_echo.time_sent = vlib_time_now (vm);
449 /* Fix up the lengths */
451 clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t) +
452 sizeof (ip4_header_t));
454 p0->current_length = clib_net_to_host_u16 (h0->ip4.length);
456 /* Calculate the IP and ICMP checksums */
457 h0->ip4.checksum = ip4_header_checksum (&(h0->ip4));
459 ~ip_csum_fold (ip_incremental_checksum (0, &(h0->icmp),
461 sizeof (ip4_header_t)));
463 /* Enqueue the packet right now */
464 f = vlib_get_frame_to_node (vm, ip4_lookup_node.index);
465 to_next = vlib_frame_vector_args (f);
468 vlib_put_frame_to_node (vm, ip4_lookup_node.index, f);
475 print_ip6_icmp_reply (vlib_main_t * vm, u32 bi0)
477 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
478 icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
479 f64 rtt = vlib_time_now (vm) - h0->icmp_echo.time_sent;
482 "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms",
483 clib_host_to_net_u16 (h0->ip6.payload_length),
485 &h0->ip6.src_address,
486 clib_host_to_net_u16 (h0->icmp_echo.seq),
487 h0->ip6.hop_limit, rtt * 1000.0);
491 print_ip4_icmp_reply (vlib_main_t * vm, u32 bi0)
493 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
494 icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
495 f64 rtt = vlib_time_now (vm) - h0->icmp_echo.time_sent;
497 clib_host_to_net_u16 (h0->ip4.length) -
498 (4 * (0xF & h0->ip4.ip_version_and_header_length));
501 "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms",
504 &h0->ip4.src_address,
505 clib_host_to_net_u16 (h0->icmp_echo.seq),
506 h0->ip4.ttl, rtt * 1000.0);
511 * Perform the ping run with the given parameters in the current CLI process.
512 * Depending on whether pa4 or pa6 is set, runs IPv4 or IPv6 ping.
513 * The amusing side effect is of course if both are set, then both pings are sent.
514 * This behavior can be used to ping a dualstack host over IPv4 and IPv6 at once.
518 run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4,
519 ip6_address_t * pa6, u32 sw_if_index,
520 f64 ping_interval, u32 ping_repeat, u32 data_len,
524 ping_main_t *pm = &ping_main;
525 uword curr_proc = vlib_current_process (vm);
529 u32 ping_run_index = 0;
532 static u32 rand_seed = 0;
534 if (PREDICT_FALSE (!rand_seed))
535 rand_seed = random_default_seed ();
537 icmp_id = random_u32 (&rand_seed) & 0xffff;
539 while (hash_get (pm->ping_run_by_icmp_id, icmp_id))
541 vlib_cli_output (vm, "ICMP ID collision at %d, incrementing", icmp_id);
544 pool_get (pm->ping_runs, pr);
545 ping_run_index = pr - pm->ping_runs;
546 pr->cli_process_id = curr_proc;
547 pr->icmp_id = icmp_id;
548 hash_set (pm->ping_run_by_icmp_id, icmp_id, ping_run_index);
549 for (i = 1; i <= ping_repeat; i++)
552 f64 time_ping_sent = vlib_time_now (vm);
553 /* Reset pr: running ping in other process could have changed pm->ping_runs */
554 pr = vec_elt_at_index (pm->ping_runs, ping_run_index);
558 send_ip6_ping (vm, ping_main.ip6_main, table_id, pa6, sw_if_index,
559 i, icmp_id, data_len, verbose)))
565 send_ip4_ping (vm, ping_main.ip4_main, table_id, pa4, sw_if_index,
566 i, icmp_id, data_len, verbose)))
570 while ((i <= ping_repeat)
573 time_ping_sent + ping_interval - vlib_time_now (vm)) > 0.0))
575 uword event_type, *event_data = 0;
576 vlib_process_wait_for_event_or_clock (vm, sleep_interval);
577 event_type = vlib_process_get_events (vm, &event_data);
580 case ~0: /* no events => timeout */
582 case PING_RESPONSE_IP6:
585 for (i = 0; i < vec_len (event_data); i++)
587 u32 bi0 = event_data[i];
588 print_ip6_icmp_reply (vm, bi0);
592 vlib_buffer_free (vm, &bi0, 1);
597 case PING_RESPONSE_IP4:
600 for (i = 0; i < vec_len (event_data); i++)
602 u32 bi0 = event_data[i];
603 print_ip4_icmp_reply (vm, bi0);
607 vlib_buffer_free (vm, &bi0, 1);
613 /* someone pressed a key, abort */
614 vlib_cli_output (vm, "Aborted due to a keypress.");
620 vlib_cli_output (vm, "\n");
624 n_requests) ? 0 : 100.0 * ((float) n_requests -
625 (float) n_replies) / (float) n_requests;
627 "Statistics: %u sent, %u received, %f%% packet loss\n",
628 n_requests, n_replies, loss);
629 /* Reset pr: running ping in other process could have changed pm->ping_runs */
630 pr = vec_elt_at_index (pm->ping_runs, ping_run_index);
631 hash_unset (pm->ping_run_by_icmp_id, icmp_id);
632 pool_put (pm->ping_runs, pr);
640 static clib_error_t *
641 ping_ip_address (vlib_main_t * vm,
642 unformat_input_t * input, vlib_cli_command_t * cmd)
646 clib_error_t *error = 0;
648 u8 ping_ip4, ping_ip6;
649 vnet_main_t *vnm = vnet_get_main ();
650 u32 data_len = PING_DEFAULT_DATA_LEN;
652 f64 ping_interval = PING_DEFAULT_INTERVAL;
653 u32 sw_if_index, table_id;
656 ping_ip4 = ping_ip6 = 0;
659 if (unformat (input, "%U", unformat_ip4_address, &a4))
663 else if (unformat (input, "%U", unformat_ip6_address, &a6))
667 else if (unformat (input, "ipv4"))
669 if (unformat (input, "%U", unformat_ip4_address, &a4))
676 clib_error_return (0,
677 "expecting IPv4 address but got `%U'",
678 format_unformat_error, input);
681 else if (unformat (input, "ipv6"))
683 if (unformat (input, "%U", unformat_ip6_address, &a6))
690 clib_error_return (0,
691 "expecting IPv6 address but got `%U'",
692 format_unformat_error, input);
698 clib_error_return (0,
699 "expecting IP4/IP6 address `%U'. Usage: ping <addr> [source <intf>] [size <datasz>] [repeat <count>] [verbose]",
700 format_unformat_error, input);
704 /* allow for the second AF in the same ping */
705 if (!ping_ip4 && (unformat (input, "ipv4")))
707 if (unformat (input, "%U", unformat_ip4_address, &a4))
712 else if (!ping_ip6 && (unformat (input, "ipv6")))
714 if (unformat (input, "%U", unformat_ip6_address, &a6))
720 /* parse the rest of the parameters in a cycle */
721 while (!unformat_eof (input, NULL))
723 if (unformat (input, "source"))
726 (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
729 clib_error_return (0,
730 "unknown interface `%U'",
731 format_unformat_error, input);
735 else if (unformat (input, "size"))
737 if (!unformat (input, "%u", &data_len))
740 clib_error_return (0,
741 "expecting size but got `%U'",
742 format_unformat_error, input);
745 if (data_len > PING_MAXIMUM_DATA_SIZE)
748 clib_error_return (0,
749 "%d is bigger than maximum allowed payload size %d",
750 data_len, PING_MAXIMUM_DATA_SIZE);
754 else if (unformat (input, "table-id"))
756 if (!unformat (input, "du", &table_id))
759 clib_error_return (0,
760 "expecting table-id but got `%U'",
761 format_unformat_error, input);
765 else if (unformat (input, "interval"))
767 if (!unformat (input, "%f", &ping_interval))
770 clib_error_return (0,
771 "expecting interval (floating point number) got `%U'",
772 format_unformat_error, input);
776 else if (unformat (input, "repeat"))
778 if (!unformat (input, "%u", &ping_repeat))
781 clib_error_return (0,
782 "expecting repeat count but got `%U'",
783 format_unformat_error, input);
787 else if (unformat (input, "verbose"))
793 error = clib_error_return (0, "unknown input `%U'",
794 format_unformat_error, input);
799 run_ping_ip46_address (vm, table_id, ping_ip4 ? &a4 : NULL,
800 ping_ip6 ? &a6 : NULL, sw_if_index, ping_interval,
801 ping_repeat, data_len, verbose);
807 * This command sends an ICMP ECHO_REQUEST to network hosts. The address
808 * can be an IPv4 or IPv6 address (or both at the same time).
812 * Example of how ping an IPv4 address:
813 * @cliexstart{ping 172.16.1.2 source GigabitEthernet2/0/0 repeat 2}
814 * 64 bytes from 172.16.1.2: icmp_seq=1 ttl=64 time=.1090 ms
815 * 64 bytes from 172.16.1.2: icmp_seq=2 ttl=64 time=.0914 ms
817 * Statistics: 2 sent, 2 received, 0% packet loss
820 * Example of how ping both an IPv4 address and IPv6 address at the same time:
821 * @cliexstart{ping 172.16.1.2 ipv6 fe80::24a5:f6ff:fe9c:3a36 source GigabitEthernet2/0/0 repeat 2 verbose}
822 * Adjacency index: 10, sw_if_index: 1
823 * Adj: ip6-discover-neighbor
825 * Forced set interface: 1
826 * Adjacency index: 0, sw_if_index: 4294967295
829 * Forced set interface: 1
830 * Source address: 172.16.1.1
831 * 64 bytes from 172.16.1.2: icmp_seq=1 ttl=64 time=.1899 ms
832 * Adjacency index: 10, sw_if_index: 1
833 * Adj: ip6-discover-neighbor
835 * Forced set interface: 1
836 * Adjacency index: 0, sw_if_index: 4294967295
839 * Forced set interface: 1
840 * Source address: 172.16.1.1
841 * 64 bytes from 172.16.1.2: icmp_seq=2 ttl=64 time=.0910 ms
843 * Statistics: 4 sent, 2 received, 50% packet loss
848 VLIB_CLI_COMMAND (ping_command, static) =
851 .function = ping_ip_address,
852 .short_help = "ping {<ip-addr> | ipv4 <ip4-addr> | ipv6 <ip6-addr>}"
853 " [ipv4 <ip4-addr> | ipv6 <ip6-addr>] [source <interface>]"
854 " [size <pktsize>] [interval <sec>] [repeat <cnt>] [table-id <id>]"
859 static clib_error_t *
860 ping_cli_init (vlib_main_t * vm)
862 ping_main_t *pm = &ping_main;
863 pm->ip6_main = &ip6_main;
864 pm->ip4_main = &ip4_main;
865 icmp6_register_type (vm, ICMP6_echo_reply, ip6_icmp_echo_reply_node.index);
866 ip4_icmp_register_type (vm, ICMP4_echo_reply,
867 ip4_icmp_echo_reply_node.index);
871 VLIB_INIT_FUNCTION (ping_cli_init);
874 * fd.io coding-style-patch-verification: ON
877 * eval: (c-set-style "gnu")