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>
21 #include <vlib/vlib.h>
22 #include <emmintrin.h>
26 * @brief IPv4 and IPv6 ICMP Ping.
28 * This file contains code to suppport IPv4 or IPv6 ICMP ECHO_REQUEST to
35 format_icmp_echo_trace (u8 * s, va_list * va)
37 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
38 CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
39 icmp_echo_trace_t *t = va_arg (*va, icmp_echo_trace_t *);
41 s = format (s, "ICMP echo id %d seq %d%s",
42 clib_net_to_host_u16 (t->id),
43 clib_net_to_host_u16 (t->seq), t->bound ? "" : " (unknown)");
49 * If we can find the ping run by an ICMP ID, then we send the signal
50 * to the CLI process referenced by that ping run, alongside with
51 * a freshly made copy of the packet.
52 * I opted for a packet copy to keep the main packet processing path
53 * the same as for all the other nodes.
58 signal_ip46_icmp_reply_event (u8 event_type, vlib_buffer_t * b0)
60 ping_main_t *pm = &ping_main;
66 case PING_RESPONSE_IP4:
68 icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
69 net_icmp_id = h0->icmp_echo.id;
72 case PING_RESPONSE_IP6:
74 icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
75 net_icmp_id = h0->icmp_echo.id;
82 uword *p = hash_get (pm->ping_run_by_icmp_id,
83 clib_net_to_host_u16 (net_icmp_id));
87 ping_run_t *pr = vec_elt_at_index (pm->ping_runs, p[0]);
88 vlib_main_t *vm = vlib_mains[pr->cli_thread_index];
89 if (vlib_buffer_alloc (vm, &bi0_copy, 1) == 1)
91 void *dst = vlib_buffer_get_current (vlib_get_buffer (vm,
93 clib_memcpy (dst, vlib_buffer_get_current (b0), b0->current_length);
95 /* If buffer_alloc failed, bi0_copy == 0 - just signaling an event. */
96 f64 nowts = vlib_time_now (vm);
97 /* Pass the timestamp to the cli_process thanks to the vnet_buffer unused metadata field */
98 clib_memcpy (vnet_buffer
100 (vm, bi0_copy))->unused, &nowts, sizeof (nowts));
101 vlib_process_signal_event (vm, pr->cli_process_id, event_type, bi0_copy);
106 * Process ICMPv6 echo replies
109 ip6_icmp_echo_reply_node_fn (vlib_main_t * vm,
110 vlib_node_runtime_t * node, vlib_frame_t * frame)
112 u32 n_left_from, *from;
114 from = vlib_frame_vector_args (frame); /* array of buffer indices */
115 n_left_from = frame->n_vectors; /* number of buffer indices */
117 while (n_left_from > 0)
124 b0 = vlib_get_buffer (vm, bi0);
126 next0 = signal_ip46_icmp_reply_event (PING_RESPONSE_IP6, b0) ?
127 ICMP6_ECHO_REPLY_NEXT_DROP : ICMP6_ECHO_REPLY_NEXT_PUNT;
129 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
131 icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
132 icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
133 tr->id = h0->icmp_echo.id;
134 tr->seq = h0->icmp_echo.seq;
135 tr->bound = (next0 == ICMP6_ECHO_REPLY_NEXT_DROP);
138 /* push this pkt to the next graph node */
139 vlib_set_next_frame_buffer (vm, node, next0, bi0);
145 return frame->n_vectors;
149 VLIB_REGISTER_NODE (ip6_icmp_echo_reply_node, static) =
151 .function = ip6_icmp_echo_reply_node_fn,
152 .name = "ip6-icmp-echo-reply",
153 .vector_size = sizeof (u32),
154 .format_trace = format_icmp_echo_trace,
155 .n_next_nodes = ICMP6_ECHO_REPLY_N_NEXT,
157 [ICMP6_ECHO_REPLY_NEXT_DROP] = "error-drop",
158 [ICMP6_ECHO_REPLY_NEXT_PUNT] = "error-punt",
164 * Process ICMPv4 echo replies
167 ip4_icmp_echo_reply_node_fn (vlib_main_t * vm,
168 vlib_node_runtime_t * node, vlib_frame_t * frame)
170 u32 n_left_from, *from;
172 from = vlib_frame_vector_args (frame); /* array of buffer indices */
173 n_left_from = frame->n_vectors; /* number of buffer indices */
175 while (n_left_from > 0)
182 b0 = vlib_get_buffer (vm, bi0);
184 next0 = signal_ip46_icmp_reply_event (PING_RESPONSE_IP4, b0) ?
185 ICMP4_ECHO_REPLY_NEXT_DROP : ICMP4_ECHO_REPLY_NEXT_PUNT;
187 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
189 icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
190 icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
191 tr->id = h0->icmp_echo.id;
192 tr->seq = h0->icmp_echo.seq;
193 tr->bound = (next0 == ICMP4_ECHO_REPLY_NEXT_DROP);
196 /* push this pkt to the next graph node */
197 vlib_set_next_frame_buffer (vm, node, next0, bi0);
203 return frame->n_vectors;
207 VLIB_REGISTER_NODE (ip4_icmp_echo_reply_node, static) =
209 .function = ip4_icmp_echo_reply_node_fn,
210 .name = "ip4-icmp-echo-reply",
211 .vector_size = sizeof (u32),
212 .format_trace = format_icmp_echo_trace,
213 .n_next_nodes = ICMP4_ECHO_REPLY_N_NEXT,
215 [ICMP4_ECHO_REPLY_NEXT_DROP] = "error-drop",
216 [ICMP4_ECHO_REPLY_NEXT_PUNT] = "error-punt",
221 char *ip6_lookup_next_nodes[] = IP6_LOOKUP_NEXT_NODES;
222 char *ip4_lookup_next_nodes[] = IP4_LOOKUP_NEXT_NODES;
224 /* Fill in the ICMP ECHO structure, return the safety-checked and possibly shrunk data_len */
226 init_icmp46_echo_request (icmp46_echo_request_t * icmp46_echo,
227 u16 seq_host, u16 id_host, u16 data_len)
230 icmp46_echo->seq = clib_host_to_net_u16 (seq_host);
231 icmp46_echo->id = clib_host_to_net_u16 (id_host);
233 if (data_len > PING_MAXIMUM_DATA_SIZE)
234 data_len = PING_MAXIMUM_DATA_SIZE;
235 for (i = 0; i < data_len; i++)
236 icmp46_echo->data[i] = i % 256;
240 static send_ip46_ping_result_t
241 send_ip6_ping (vlib_main_t * vm, ip6_main_t * im,
242 u32 table_id, ip6_address_t * pa6,
243 u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len,
244 u32 burst, u8 verbose)
246 icmp6_echo_request_header_t *h0;
248 int bogus_length = 0;
252 vlib_buffer_free_list_t *fl;
254 if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
255 return SEND_PING_ALLOC_FAIL;
257 p0 = vlib_get_buffer (vm, bi0);
258 fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
259 vlib_buffer_init_for_free_list (p0, fl);
260 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0);
263 * if the user did not provide a source interface, use the any interface
264 * that the destination resolves via.
266 if (~0 == sw_if_index)
268 fib_node_index_t fib_entry_index;
271 fib_index = ip6_fib_index_from_table_id (table_id);
275 vlib_buffer_free (vm, &bi0, 1);
276 return SEND_PING_NO_TABLE;
279 fib_entry_index = ip6_fib_table_lookup (fib_index, pa6, 128);
280 sw_if_index = fib_entry_get_resolving_interface (fib_entry_index);
282 * Set the TX interface to force ip-lookup to use its table ID
284 vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index;
289 * force an IP lookup in the table bound to the user's chosen
292 vnet_buffer (p0)->sw_if_index[VLIB_TX] =
293 ip6_fib_table_get_index_for_sw_if_index (sw_if_index);
296 if (~0 == sw_if_index)
298 vlib_buffer_free (vm, &bi0, 1);
299 return SEND_PING_NO_INTERFACE;
302 vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index;
304 h0 = vlib_buffer_get_current (p0);
306 /* Fill in ip6 header fields */
307 h0->ip6.ip_version_traffic_class_and_flow_label =
308 clib_host_to_net_u32 (0x6 << 28);
309 h0->ip6.payload_length = 0; /* Set below */
310 h0->ip6.protocol = IP_PROTOCOL_ICMP6;
311 h0->ip6.hop_limit = 255;
312 h0->ip6.dst_address = *pa6;
313 h0->ip6.src_address = *pa6;
315 /* Fill in the correct source now */
316 ip6_address_t *a = ip6_interface_first_address (im, sw_if_index);
319 vlib_buffer_free (vm, &bi0, 1);
320 return SEND_PING_NO_SRC_ADDRESS;
322 h0->ip6.src_address = a[0];
324 /* Fill in icmp fields */
325 h0->icmp.type = ICMP6_echo_request;
327 h0->icmp.checksum = 0;
330 init_icmp46_echo_request (&h0->icmp_echo, seq_host, id_host, data_len);
331 h0->icmp_echo.time_sent = vlib_time_now (vm);
333 /* Fix up the lengths */
334 h0->ip6.payload_length =
335 clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t));
337 p0->current_length = clib_net_to_host_u16 (h0->ip6.payload_length) +
338 STRUCT_OFFSET_OF (icmp6_echo_request_header_t, icmp);
340 /* Calculate the ICMP checksum */
341 h0->icmp.checksum = 0;
343 ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h0->ip6, &bogus_length);
345 /* Enqueue the packet right now */
346 f = vlib_get_frame_to_node (vm, ip6_lookup_node.index);
347 to_next = vlib_frame_vector_args (f);
350 ASSERT (burst <= VLIB_FRAME_SIZE);
351 f->n_vectors = burst;
354 vlib_buffer_t *c0 = vlib_buffer_copy (vm, p0);
356 to_next[0] = vlib_get_buffer_index (vm, c0);
358 vlib_put_frame_to_node (vm, ip6_lookup_node.index, f);
363 static send_ip46_ping_result_t
364 send_ip4_ping (vlib_main_t * vm,
369 u16 seq_host, u16 id_host, u16 data_len, u32 burst, u8 verbose)
371 icmp4_echo_request_header_t *h0;
373 ip_lookup_main_t *lm = &im->lookup_main;
378 vlib_buffer_free_list_t *fl;
380 if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
381 return SEND_PING_ALLOC_FAIL;
383 p0 = vlib_get_buffer (vm, bi0);
384 fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
385 vlib_buffer_init_for_free_list (p0, fl);
386 VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0);
389 * if the user did not provide a source interface, use the any interface
390 * that the destination resolves via.
392 if (~0 == sw_if_index)
394 fib_node_index_t fib_entry_index;
397 fib_index = ip4_fib_index_from_table_id (table_id);
401 vlib_buffer_free (vm, &bi0, 1);
402 return SEND_PING_NO_TABLE;
406 ip4_fib_table_lookup (ip4_fib_get (fib_index), pa4, 32);
407 sw_if_index = fib_entry_get_resolving_interface (fib_entry_index);
409 * Set the TX interface to force ip-lookup to use the user's table ID
411 vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index;
416 * force an IP lookup in the table bound to the user's chosen
419 vnet_buffer (p0)->sw_if_index[VLIB_TX] =
420 ip4_fib_table_get_index_for_sw_if_index (sw_if_index);
423 if (~0 == sw_if_index)
425 vlib_buffer_free (vm, &bi0, 1);
426 return SEND_PING_NO_INTERFACE;
429 vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index;
431 h0 = vlib_buffer_get_current (p0);
433 /* Fill in ip4 header fields */
434 h0->ip4.checksum = 0;
435 h0->ip4.ip_version_and_header_length = 0x45;
437 h0->ip4.length = 0; /* Set below */
438 h0->ip4.fragment_id = 0;
439 h0->ip4.flags_and_fragment_offset = 0;
441 h0->ip4.protocol = IP_PROTOCOL_ICMP;
442 h0->ip4.dst_address = *pa4;
443 h0->ip4.src_address = *pa4;
445 /* Fill in the correct source now */
446 if_add_index0 = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
447 if (PREDICT_TRUE (if_add_index0 != ~0))
449 ip_interface_address_t *if_add =
450 pool_elt_at_index (lm->if_address_pool, if_add_index0);
451 ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
452 h0->ip4.src_address = *if_ip;
455 vlib_cli_output (vm, "Source address: %U",
456 format_ip4_address, &h0->ip4.src_address);
460 /* Fill in icmp fields */
461 h0->icmp.type = ICMP4_echo_request;
463 h0->icmp.checksum = 0;
466 init_icmp46_echo_request (&h0->icmp_echo, seq_host, id_host, data_len);
467 h0->icmp_echo.time_sent = vlib_time_now (vm);
469 /* Fix up the lengths */
471 clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t) +
472 sizeof (ip4_header_t));
474 p0->current_length = clib_net_to_host_u16 (h0->ip4.length);
476 /* Calculate the IP and ICMP checksums */
477 h0->ip4.checksum = ip4_header_checksum (&(h0->ip4));
479 ~ip_csum_fold (ip_incremental_checksum (0, &(h0->icmp),
481 sizeof (ip4_header_t)));
483 /* Enqueue the packet right now */
484 f = vlib_get_frame_to_node (vm, ip4_lookup_node.index);
485 to_next = vlib_frame_vector_args (f);
488 ASSERT (burst <= VLIB_FRAME_SIZE);
489 f->n_vectors = burst;
492 vlib_buffer_t *c0 = vlib_buffer_copy (vm, p0);
494 to_next[0] = vlib_get_buffer_index (vm, c0);
496 vlib_put_frame_to_node (vm, ip4_lookup_node.index, f);
503 print_ip6_icmp_reply (vlib_main_t * vm, u32 bi0)
505 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
506 icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
508 clib_memcpy (&rtt, vnet_buffer (b0)->unused, sizeof (rtt));
509 rtt -= h0->icmp_echo.time_sent;
511 "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms",
512 clib_host_to_net_u16 (h0->ip6.payload_length),
514 &h0->ip6.src_address,
515 clib_host_to_net_u16 (h0->icmp_echo.seq),
516 h0->ip6.hop_limit, rtt * 1000.0);
520 print_ip4_icmp_reply (vlib_main_t * vm, u32 bi0)
522 vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0);
523 icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0);
525 clib_memcpy (&rtt, vnet_buffer (b0)->unused, sizeof (rtt));
526 rtt -= h0->icmp_echo.time_sent;
528 clib_host_to_net_u16 (h0->ip4.length) -
529 (4 * (0xF & h0->ip4.ip_version_and_header_length));
532 "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms",
535 &h0->ip4.src_address,
536 clib_host_to_net_u16 (h0->icmp_echo.seq),
537 h0->ip4.ttl, rtt * 1000.0);
542 * Perform the ping run with the given parameters in the current CLI process.
543 * Depending on whether pa4 or pa6 is set, runs IPv4 or IPv6 ping.
544 * The amusing side effect is of course if both are set, then both pings are sent.
545 * This behavior can be used to ping a dualstack host over IPv4 and IPv6 at once.
549 run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4,
550 ip6_address_t * pa6, u32 sw_if_index,
551 f64 ping_interval, u32 ping_repeat, u32 data_len,
552 u32 ping_burst, u32 verbose)
555 ping_main_t *pm = &ping_main;
556 uword curr_proc = vlib_current_process (vm);
560 u32 ping_run_index = 0;
563 static u32 rand_seed = 0;
565 if (PREDICT_FALSE (!rand_seed))
566 rand_seed = random_default_seed ();
568 icmp_id = random_u32 (&rand_seed) & 0xffff;
570 while (hash_get (pm->ping_run_by_icmp_id, icmp_id))
572 vlib_cli_output (vm, "ICMP ID collision at %d, incrementing", icmp_id);
575 pool_get (pm->ping_runs, pr);
576 ping_run_index = pr - pm->ping_runs;
577 pr->cli_process_id = curr_proc;
578 pr->cli_thread_index = vlib_get_thread_index ();
579 pr->icmp_id = icmp_id;
580 hash_set (pm->ping_run_by_icmp_id, icmp_id, ping_run_index);
581 for (i = 1; i <= ping_repeat; i++)
584 f64 time_ping_sent = vlib_time_now (vm);
585 /* Reset pr: running ping in other process could have changed pm->ping_runs */
586 pr = vec_elt_at_index (pm->ping_runs, ping_run_index);
590 send_ip6_ping (vm, ping_main.ip6_main, table_id, pa6, sw_if_index,
591 i, icmp_id, data_len, ping_burst, verbose)))
593 n_requests += ping_burst;
597 send_ip4_ping (vm, ping_main.ip4_main, table_id, pa4, sw_if_index,
598 i, icmp_id, data_len, ping_burst, verbose)))
600 n_requests += ping_burst;
602 while ((i <= ping_repeat)
605 time_ping_sent + ping_interval - vlib_time_now (vm)) > 0.0))
607 uword event_type, *event_data = 0;
608 vlib_process_wait_for_event_or_clock (vm, sleep_interval);
609 event_type = vlib_process_get_events (vm, &event_data);
612 case ~0: /* no events => timeout */
614 case PING_RESPONSE_IP6:
617 for (i = 0; i < vec_len (event_data); i++)
619 u32 bi0 = event_data[i];
620 print_ip6_icmp_reply (vm, bi0);
624 vlib_buffer_free (vm, &bi0, 1);
629 case PING_RESPONSE_IP4:
632 for (i = 0; i < vec_len (event_data); i++)
634 u32 bi0 = event_data[i];
635 print_ip4_icmp_reply (vm, bi0);
639 vlib_buffer_free (vm, &bi0, 1);
645 /* someone pressed a key, abort */
646 vlib_cli_output (vm, "Aborted due to a keypress.");
652 vlib_cli_output (vm, "\n");
656 n_requests) ? 0 : 100.0 * ((float) n_requests -
657 (float) n_replies) / (float) n_requests;
659 "Statistics: %u sent, %u received, %f%% packet loss\n",
660 n_requests, n_replies, loss);
661 /* Reset pr: running ping in other process could have changed pm->ping_runs */
662 pr = vec_elt_at_index (pm->ping_runs, ping_run_index);
663 hash_unset (pm->ping_run_by_icmp_id, icmp_id);
664 pool_put (pm->ping_runs, pr);
672 static clib_error_t *
673 ping_ip_address (vlib_main_t * vm,
674 unformat_input_t * input, vlib_cli_command_t * cmd)
678 clib_error_t *error = 0;
681 u8 ping_ip4, ping_ip6;
682 vnet_main_t *vnm = vnet_get_main ();
683 u32 data_len = PING_DEFAULT_DATA_LEN;
685 f64 ping_interval = PING_DEFAULT_INTERVAL;
686 u32 sw_if_index, table_id;
689 ping_ip4 = ping_ip6 = 0;
692 if (unformat (input, "%U", unformat_ip4_address, &a4))
696 else if (unformat (input, "%U", unformat_ip6_address, &a6))
700 else if (unformat (input, "ipv4"))
702 if (unformat (input, "%U", unformat_ip4_address, &a4))
709 clib_error_return (0,
710 "expecting IPv4 address but got `%U'",
711 format_unformat_error, input);
714 else if (unformat (input, "ipv6"))
716 if (unformat (input, "%U", unformat_ip6_address, &a6))
723 clib_error_return (0,
724 "expecting IPv6 address but got `%U'",
725 format_unformat_error, input);
731 clib_error_return (0,
732 "expecting IP4/IP6 address `%U'. Usage: ping <addr> [source <intf>] [size <datasz>] [repeat <count>] [verbose]",
733 format_unformat_error, input);
737 /* allow for the second AF in the same ping */
738 if (!ping_ip4 && (unformat (input, "ipv4")))
740 if (unformat (input, "%U", unformat_ip4_address, &a4))
745 else if (!ping_ip6 && (unformat (input, "ipv6")))
747 if (unformat (input, "%U", unformat_ip6_address, &a6))
753 /* parse the rest of the parameters in a cycle */
754 while (!unformat_eof (input, NULL))
756 if (unformat (input, "source"))
759 (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
762 clib_error_return (0,
763 "unknown interface `%U'",
764 format_unformat_error, input);
768 else if (unformat (input, "size"))
770 if (!unformat (input, "%u", &data_len))
773 clib_error_return (0,
774 "expecting size but got `%U'",
775 format_unformat_error, input);
778 if (data_len > PING_MAXIMUM_DATA_SIZE)
781 clib_error_return (0,
782 "%d is bigger than maximum allowed payload size %d",
783 data_len, PING_MAXIMUM_DATA_SIZE);
787 else if (unformat (input, "table-id"))
789 if (!unformat (input, "%u", &table_id))
792 clib_error_return (0,
793 "expecting table-id but got `%U'",
794 format_unformat_error, input);
798 else if (unformat (input, "interval"))
800 if (!unformat (input, "%f", &ping_interval))
803 clib_error_return (0,
804 "expecting interval (floating point number) got `%U'",
805 format_unformat_error, input);
809 else if (unformat (input, "repeat"))
811 if (!unformat (input, "%u", &ping_repeat))
814 clib_error_return (0,
815 "expecting repeat count but got `%U'",
816 format_unformat_error, input);
820 else if (unformat (input, "burst"))
822 if (!unformat (input, "%u", &ping_burst))
825 clib_error_return (0,
826 "expecting burst count but got `%U'",
827 format_unformat_error, input);
831 else if (unformat (input, "verbose"))
837 error = clib_error_return (0, "unknown input `%U'",
838 format_unformat_error, input);
843 if (ping_burst < 1 || ping_burst > VLIB_FRAME_SIZE)
844 return clib_error_return (0, "burst size must be between 1 and %u",
847 run_ping_ip46_address (vm, table_id, ping_ip4 ? &a4 : NULL,
848 ping_ip6 ? &a6 : NULL, sw_if_index, ping_interval,
849 ping_repeat, data_len, ping_burst, verbose);
855 * This command sends an ICMP ECHO_REQUEST to network hosts. The address
856 * can be an IPv4 or IPv6 address (or both at the same time).
860 * Example of how ping an IPv4 address:
861 * @cliexstart{ping 172.16.1.2 source GigabitEthernet2/0/0 repeat 2}
862 * 64 bytes from 172.16.1.2: icmp_seq=1 ttl=64 time=.1090 ms
863 * 64 bytes from 172.16.1.2: icmp_seq=2 ttl=64 time=.0914 ms
865 * Statistics: 2 sent, 2 received, 0% packet loss
868 * Example of how ping both an IPv4 address and IPv6 address at the same time:
869 * @cliexstart{ping 172.16.1.2 ipv6 fe80::24a5:f6ff:fe9c:3a36 source GigabitEthernet2/0/0 repeat 2 verbose}
870 * Adjacency index: 10, sw_if_index: 1
871 * Adj: ip6-discover-neighbor
873 * Forced set interface: 1
874 * Adjacency index: 0, sw_if_index: 4294967295
877 * Forced set interface: 1
878 * Source address: 172.16.1.1
879 * 64 bytes from 172.16.1.2: icmp_seq=1 ttl=64 time=.1899 ms
880 * Adjacency index: 10, sw_if_index: 1
881 * Adj: ip6-discover-neighbor
883 * Forced set interface: 1
884 * Adjacency index: 0, sw_if_index: 4294967295
887 * Forced set interface: 1
888 * Source address: 172.16.1.1
889 * 64 bytes from 172.16.1.2: icmp_seq=2 ttl=64 time=.0910 ms
891 * Statistics: 4 sent, 2 received, 50% packet loss
896 VLIB_CLI_COMMAND (ping_command, static) =
899 .function = ping_ip_address,
900 .short_help = "ping {<ip-addr> | ipv4 <ip4-addr> | ipv6 <ip6-addr>}"
901 " [ipv4 <ip4-addr> | ipv6 <ip6-addr>] [source <interface>]"
902 " [size <pktsize>] [interval <sec>] [repeat <cnt>] [table-id <id>]"
908 static clib_error_t *
909 ping_cli_init (vlib_main_t * vm)
911 ping_main_t *pm = &ping_main;
912 pm->ip6_main = &ip6_main;
913 pm->ip4_main = &ip4_main;
914 icmp6_register_type (vm, ICMP6_echo_reply, ip6_icmp_echo_reply_node.index);
915 ip4_icmp_register_type (vm, ICMP4_echo_reply,
916 ip4_icmp_echo_reply_node.index);
920 VLIB_INIT_FUNCTION (ping_cli_init);
923 * fd.io coding-style-patch-verification: ON
926 * eval: (c-set-style "gnu")