vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2021-05-20	build: add .clang-tidy	Damjan Marion	1	-0/+8

/* * Copyright (c) 2016 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 <stddef.h> #include <vnet/ip/ping.h> #include <vnet/fib/ip6_fib.h> #include <vnet/fib/ip4_fib.h> #include <vnet/fib/fib_entry.h> /** * @file * @brief IPv4 and IPv6 ICMP Ping. * * This file contains code to suppport IPv4 or IPv6 ICMP ECHO_REQUEST to * network hosts. * */ u8 * format_icmp_echo_trace (u8 * s, va_list * va) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *); icmp_echo_trace_t *t = va_arg (*va, icmp_echo_trace_t *); s = format (s, "ICMP echo id %d seq %d%s", clib_net_to_host_u16 (t->id), clib_net_to_host_u16 (t->seq), t->bound ? "" : " (unknown)"); return s; } /* * If we can find the ping run by an ICMP ID, then we send the signal * to the CLI process referenced by that ping run, alongside with * a freshly made copy of the packet. * I opted for a packet copy to keep the main packet processing path * the same as for all the other nodes. * */ static int signal_ip46_icmp_reply_event (vlib_main_t * vm, u8 event_type, vlib_buffer_t * b0) { ping_main_t *pm = &ping_main; u16 net_icmp_id = 0; u32 bi0_copy = 0; switch (event_type) { case PING_RESPONSE_IP4: { icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); net_icmp_id = h0->icmp_echo.id; } break; case PING_RESPONSE_IP6: { icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); net_icmp_id = h0->icmp_echo.id; } break; default: return 0; } uword *p = hash_get (pm->ping_run_by_icmp_id, clib_net_to_host_u16 (net_icmp_id)); if (!p) return 0; ping_run_t *pr = vec_elt_at_index (pm->ping_runs, p[0]); if (vlib_buffer_alloc (vm, &bi0_copy, 1) == 1) { void *dst = vlib_buffer_get_current (vlib_get_buffer (vm, bi0_copy)); clib_memcpy (dst, vlib_buffer_get_current (b0), b0->current_length); } /* If buffer_alloc failed, bi0_copy == 0 - just signaling an event. */ vlib_process_signal_event (vm, pr->cli_process_id, event_type, bi0_copy); return 1; } /* * Process ICMPv6 echo replies */ static uword ip6_icmp_echo_reply_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from; from = vlib_frame_vector_args (frame); /* array of buffer indices */ n_left_from = frame->n_vectors; /* number of buffer indices */ while (n_left_from > 0) { u32 bi0; vlib_buffer_t *b0; u32 next0; bi0 = from[0]; b0 = vlib_get_buffer (vm, bi0); next0 = signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP6, b0) ? ICMP6_ECHO_REPLY_NEXT_DROP : ICMP6_ECHO_REPLY_NEXT_PUNT; if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); tr->id = h0->icmp_echo.id; tr->seq = h0->icmp_echo.seq; tr->bound = (next0 == ICMP6_ECHO_REPLY_NEXT_DROP); } /* push this pkt to the next graph node */ vlib_set_next_frame_buffer (vm, node, next0, bi0); from += 1; n_left_from -= 1; } return frame->n_vectors; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip6_icmp_echo_reply_node, static) = { .function = ip6_icmp_echo_reply_node_fn, .name = "ip6-icmp-echo-reply", .vector_size = sizeof (u32), .format_trace = format_icmp_echo_trace, .n_next_nodes = ICMP6_ECHO_REPLY_N_NEXT, .next_nodes = { [ICMP6_ECHO_REPLY_NEXT_DROP] = "error-drop", [ICMP6_ECHO_REPLY_NEXT_PUNT] = "error-punt", }, }; /* *INDENT-ON* */ /* * Process ICMPv4 echo replies */ static uword ip4_icmp_echo_reply_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from; from = vlib_frame_vector_args (frame); /* array of buffer indices */ n_left_from = frame->n_vectors; /* number of buffer indices */ while (n_left_from > 0) { u32 bi0; vlib_buffer_t *b0; u32 next0; bi0 = from[0]; b0 = vlib_get_buffer (vm, bi0); next0 = signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP4, b0) ? ICMP4_ECHO_REPLY_NEXT_DROP : ICMP4_ECHO_REPLY_NEXT_PUNT; if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) { icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); icmp_echo_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr)); tr->id = h0->icmp_echo.id; tr->seq = h0->icmp_echo.seq; tr->bound = (next0 == ICMP4_ECHO_REPLY_NEXT_DROP); } /* push this pkt to the next graph node */ vlib_set_next_frame_buffer (vm, node, next0, bi0); from += 1; n_left_from -= 1; } return frame->n_vectors; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (ip4_icmp_echo_reply_node, static) = { .function = ip4_icmp_echo_reply_node_fn, .name = "ip4-icmp-echo-reply", .vector_size = sizeof (u32), .format_trace = format_icmp_echo_trace, .n_next_nodes = ICMP4_ECHO_REPLY_N_NEXT, .next_nodes = { [ICMP4_ECHO_REPLY_NEXT_DROP] = "error-drop", [ICMP4_ECHO_REPLY_NEXT_PUNT] = "error-punt", }, }; /* *INDENT-ON* */ char *ip6_lookup_next_nodes[] = IP6_LOOKUP_NEXT_NODES; char *ip4_lookup_next_nodes[] = IP4_LOOKUP_NEXT_NODES; /* Fill in the ICMP ECHO structure, return the safety-checked and possibly shrunk data_len */ static u16 init_icmp46_echo_request (icmp46_echo_request_t * icmp46_echo, u16 seq_host, u16 id_host, u16 data_len) { int i; icmp46_echo->seq = clib_host_to_net_u16 (seq_host); icmp46_echo->id = clib_host_to_net_u16 (id_host); if (data_len > PING_MAXIMUM_DATA_SIZE) data_len = PING_MAXIMUM_DATA_SIZE; for (i = 0; i < data_len; i++) icmp46_echo->data[i] = i % 256; return data_len; } static send_ip46_ping_result_t send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, u32 table_id, ip6_address_t * pa6, u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len, u32 burst, u8 verbose) { icmp6_echo_request_header_t *h0; u32 bi0 = 0; int bogus_length = 0; vlib_buffer_t *p0; vlib_frame_t *f; u32 *to_next; vlib_buffer_free_list_t *fl; if (vlib_buffer_alloc (vm, &bi0, 1) != 1) return SEND_PING_ALLOC_FAIL; p0 = vlib_get_buffer (vm, bi0); fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); vlib_buffer_init_for_free_list (p0, fl); VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0); /* * if the user did not provide a source interface, use the any interface * that the destination resolves via. */ if (~0 == sw_if_index) { fib_node_index_t fib_entry_index; u32 fib_index; fib_index = ip6_fib_index_from_table_id (table_id); if (~0 == fib_index) { vlib_buffer_free (vm, &bi0, 1); return SEND_PING_NO_TABLE; } fib_entry_index = ip6_fib_table_lookup (fib_index, pa6, 128); sw_if_index = fib_entry_get_resolving_interface (fib_entry_index); /* * Set the TX interface to force ip-lookup to use its table ID */ vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index; } else { /* * force an IP lookup in the table bound to the user's chosen * source interface. */ vnet_buffer (p0)->sw_if_index[VLIB_TX] = ip6_fib_table_get_index_for_sw_if_index (sw_if_index); } if (~0 == sw_if_index) { vlib_buffer_free (vm, &bi0, 1); return SEND_PING_NO_INTERFACE; } vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index; h0 = vlib_buffer_get_current (p0); /* Fill in ip6 header fields */ h0->ip6.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28); h0->ip6.payload_length = 0; /* Set below */ h0->ip6.protocol = IP_PROTOCOL_ICMP6; h0->ip6.hop_limit = 255; h0->ip6.dst_address = *pa6; h0->ip6.src_address = *pa6; /* Fill in the correct source now */ ip6_address_t *a = ip6_interface_first_address (im, sw_if_index); if (!a) { vlib_buffer_free (vm, &bi0, 1); return SEND_PING_NO_SRC_ADDRESS; } h0->ip6.src_address = a[0]; /* Fill in icmp fields */ h0->icmp.type = ICMP6_echo_request; h0->icmp.code = 0; h0->icmp.checksum = 0; data_len = init_icmp46_echo_request (&h0->icmp_echo, seq_host, id_host, data_len); h0->icmp_echo.time_sent = vlib_time_now (vm); /* Fix up the lengths */ h0->ip6.payload_length = clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t)); p0->current_length = clib_net_to_host_u16 (h0->ip6.payload_length) + STRUCT_OFFSET_OF (icmp6_echo_request_header_t, icmp); /* Calculate the ICMP checksum */ h0->icmp.checksum = 0; h0->icmp.checksum = ip6_tcp_udp_icmp_compute_checksum (vm, 0, &h0->ip6, &bogus_length); /* Enqueue the packet right now */ f = vlib_get_frame_to_node (vm, ip6_lookup_node.index); to_next = vlib_frame_vector_args (f); to_next[0] = bi0; ASSERT (burst <= VLIB_FRAME_SIZE); f->n_vectors = burst; while (--burst) { vlib_buffer_t *c0 = vlib_buffer_copy (vm, p0); to_next++; to_next[0] = vlib_get_buffer_index (vm, c0); } vlib_put_frame_to_node (vm, ip6_lookup_node.index, f); return SEND_PING_OK; } static send_ip46_ping_result_t send_ip4_ping (vlib_main_t * vm, ip4_main_t * im, u32 table_id, ip4_address_t * pa4, u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len, u32 burst, u8 verbose) { icmp4_echo_request_header_t *h0; u32 bi0 = 0; ip_lookup_main_t *lm = &im->lookup_main; vlib_buffer_t *p0; vlib_frame_t *f; u32 *to_next; u32 if_add_index0; vlib_buffer_free_list_t *fl; if (vlib_buffer_alloc (vm, &bi0, 1) != 1) return SEND_PING_ALLOC_FAIL; p0 = vlib_get_buffer (vm, bi0); fl = vlib_buffer_get_free_list (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); vlib_buffer_init_for_free_list (p0, fl); VLIB_BUFFER_TRACE_TRAJECTORY_INIT (p0); /* * if the user did not provide a source interface, use the any interface * that the destination resolves via. */ if (~0 == sw_if_index) { fib_node_index_t fib_entry_index; u32 fib_index; fib_index = ip4_fib_index_from_table_id (table_id); if (~0 == fib_index) { vlib_buffer_free (vm, &bi0, 1); return SEND_PING_NO_TABLE; } fib_entry_index = ip4_fib_table_lookup (ip4_fib_get (fib_index), pa4, 32); sw_if_index = fib_entry_get_resolving_interface (fib_entry_index); /* * Set the TX interface to force ip-lookup to use the user's table ID */ vnet_buffer (p0)->sw_if_index[VLIB_TX] = fib_index; } else { /* * force an IP lookup in the table bound to the user's chosen * source interface. */ vnet_buffer (p0)->sw_if_index[VLIB_TX] = ip4_fib_table_get_index_for_sw_if_index (sw_if_index); } if (~0 == sw_if_index) { vlib_buffer_free (vm, &bi0, 1); return SEND_PING_NO_INTERFACE; } vnet_buffer (p0)->sw_if_index[VLIB_RX] = sw_if_index; h0 = vlib_buffer_get_current (p0); /* Fill in ip4 header fields */ h0->ip4.checksum = 0; h0->ip4.ip_version_and_header_length = 0x45; h0->ip4.tos = 0; h0->ip4.length = 0; /* Set below */ h0->ip4.fragment_id = 0; h0->ip4.flags_and_fragment_offset = 0; h0->ip4.ttl = 0xff; h0->ip4.protocol = IP_PROTOCOL_ICMP; h0->ip4.dst_address = *pa4; h0->ip4.src_address = *pa4; /* Fill in the correct source now */ if_add_index0 = lm->if_address_pool_index_by_sw_if_index[sw_if_index]; if (PREDICT_TRUE (if_add_index0 != ~0)) { ip_interface_address_t *if_add = pool_elt_at_index (lm->if_address_pool, if_add_index0); ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add); h0->ip4.src_address = *if_ip; if (verbose) { vlib_cli_output (vm, "Source address: %U", format_ip4_address, &h0->ip4.src_address); } } /* Fill in icmp fields */ h0->icmp.type = ICMP4_echo_request; h0->icmp.code = 0; h0->icmp.checksum = 0; data_len = init_icmp46_echo_request (&h0->icmp_echo, seq_host, id_host, data_len); h0->icmp_echo.time_sent = vlib_time_now (vm); /* Fix up the lengths */ h0->ip4.length = clib_host_to_net_u16 (data_len + sizeof (icmp46_header_t) + sizeof (ip4_header_t)); p0->current_length = clib_net_to_host_u16 (h0->ip4.length); /* Calculate the IP and ICMP checksums */ h0->ip4.checksum = ip4_header_checksum (&(h0->ip4)); h0->icmp.checksum = ~ip_csum_fold (ip_incremental_checksum (0, &(h0->icmp), p0->current_length - sizeof (ip4_header_t))); /* Enqueue the packet right now */ f = vlib_get_frame_to_node (vm, ip4_lookup_node.index); to_next = vlib_frame_vector_args (f); to_next[0] = bi0; ASSERT (burst <= VLIB_FRAME_SIZE); f->n_vectors = burst; while (--burst) { vlib_buffer_t *c0 = vlib_buffer_copy (vm, p0); to_next++; to_next[0] = vlib_get_buffer_index (vm, c0); } vlib_put_frame_to_node (vm, ip4_lookup_node.index, f); return SEND_PING_OK; } static void print_ip6_icmp_reply (vlib_main_t * vm, u32 bi0) { vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); icmp6_echo_request_header_t *h0 = vlib_buffer_get_current (b0); f64 rtt = vlib_time_now (vm) - h0->icmp_echo.time_sent; vlib_cli_output (vm, "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms", clib_host_to_net_u16 (h0->ip6.payload_length), format_ip6_address, &h0->ip6.src_address, clib_host_to_net_u16 (h0->icmp_echo.seq), h0->ip6.hop_limit, rtt * 1000.0); } static void print_ip4_icmp_reply (vlib_main_t * vm, u32 bi0) { vlib_buffer_t *b0 = vlib_get_buffer (vm, bi0); icmp4_echo_request_header_t *h0 = vlib_buffer_get_current (b0); f64 rtt = vlib_time_now (vm) - h0->icmp_echo.time_sent; u32 rcvd_icmp_len = clib_host_to_net_u16 (h0->ip4.length) - (4 * (0xF & h0->ip4.ip_version_and_header_length)); vlib_cli_output (vm, "%d bytes from %U: icmp_seq=%d ttl=%d time=%.4f ms", rcvd_icmp_len, format_ip4_address, &h0->ip4.src_address, clib_host_to_net_u16 (h0->icmp_echo.seq), h0->ip4.ttl, rtt * 1000.0); } /* * Perform the ping run with the given parameters in the current CLI process. * Depending on whether pa4 or pa6 is set, runs IPv4 or IPv6 ping. * The amusing side effect is of course if both are set, then both pings are sent. * This behavior can be used to ping a dualstack host over IPv4 and IPv6 at once. */ static void run_ping_ip46_address (vlib_main_t * vm, u32 table_id, ip4_address_t * pa4, ip6_address_t * pa6, u32 sw_if_index, f64 ping_interval, u32 ping_repeat, u32 data_len, u32 ping_burst, u32 verbose) { int i; ping_main_t *pm = &ping_main; uword curr_proc = vlib_current_process (vm); u32 n_replies = 0; u32 n_requests = 0; ping_run_t *pr = 0; u32 ping_run_index = 0; u16 icmp_id; static u32 rand_seed = 0; if (PREDICT_FALSE (!rand_seed)) rand_seed = random_default_seed (); icmp_id = random_u32 (&rand_seed) & 0xffff; while (hash_get (pm->ping_run_by_icmp_id, icmp_id)) { vlib_cli_output (vm, "ICMP ID collision at %d, incrementing", icmp_id); icmp_id++; } pool_get (pm->ping_runs, pr); ping_run_index = pr - pm->ping_runs; pr->cli_process_id = curr_proc; pr->icmp_id = icmp_id; hash_set (pm->ping_run_by_icmp_id, icmp_id, ping_run_index); for (i = 1; i <= ping_repeat; i++) { f64 sleep_interval; f64 time_ping_sent = vlib_time_now (vm); /* Reset pr: running ping in other process could have changed pm->ping_runs */ pr = vec_elt_at_index (pm->ping_runs, ping_run_index); pr->curr_seq = i; if (pa6 && (SEND_PING_OK == send_ip6_ping (vm, ping_main.ip6_main, table_id, pa6, sw_if_index, i, icmp_id, data_len, ping_burst, verbose))) { n_requests += ping_burst; } if (pa4 && (SEND_PING_OK == send_ip4_ping (vm, ping_main.ip4_main, table_id, pa4, sw_if_index, i, icmp_id, data_len, ping_burst, verbose))) { n_requests += ping_burst; } while ((i <= ping_repeat) && ((sleep_interval = time_ping_sent + ping_interval - vlib_time_now (vm)) > 0.0)) { uword event_type, *event_data = 0; vlib_process_wait_for_event_or_clock (vm, sleep_interval); event_type = vlib_process_get_events (vm, &event_data); switch (event_type) { case ~0: /* no events => timeout */ break; case PING_RESPONSE_IP6: { int i; for (i = 0; i < vec_len (event_data); i++) { u32 bi0 = event_data[i]; print_ip6_icmp_reply (vm, bi0); n_replies++; if (0 != bi0) { vlib_buffer_free (vm, &bi0, 1); } } } break; case PING_RESPONSE_IP4: { int i; for (i = 0; i < vec_len (event_data); i++) { u32 bi0 = event_data[i]; print_ip4_icmp_reply (vm, bi0); n_replies++; if (0 != bi0) { vlib_buffer_free (vm, &bi0, 1); } } } break; default: /* someone pressed a key, abort */ vlib_cli_output (vm, "Aborted due to a keypress."); i = 1 + ping_repeat; break; } } } vlib_cli_output (vm, "\n"); { float loss = (0 == n_requests) ? 0 : 100.0 * ((float) n_requests - (float) n_replies) / (float) n_requests; vlib_cli_output (vm, "Statistics: %u sent, %u received, %f%% packet loss\n", n_requests, n_replies, loss); /* Reset pr: running ping in other process could have changed pm->ping_runs */ pr = vec_elt_at_index (pm->ping_runs, ping_run_index); hash_unset (pm->ping_run_by_icmp_id, icmp_id); pool_put (pm->ping_runs, pr); } } static clib_error_t * ping_ip_address (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { ip4_address_t a4; ip6_address_t a6; clib_error_t *error = 0; u32 ping_repeat = 5; u32 ping_burst = 1; u8 ping_ip4, ping_ip6; vnet_main_t *vnm = vnet_get_main (); u32 data_len = PING_DEFAULT_DATA_LEN; u32 verbose = 0; f64 ping_interval = PING_DEFAULT_INTERVAL; u32 sw_if_index, table_id; table_id = 0; ping_ip4 = ping_ip6 = 0; sw_if_index = ~0; if (unformat (input, "%U", unformat_ip4_address, &a4)) { ping_ip4 = 1; } else if (unformat (input, "%U", unformat_ip6_address, &a6)) { ping_ip6 = 1; } else if (unformat (input, "ipv4")) { if (unformat (input, "%U", unformat_ip4_address, &a4)) { ping_ip4 = 1; } else { error = clib_error_return (0, "expecting IPv4 address but got `%U'", format_unformat_error, input); } } else if (unformat (input, "ipv6")) { if (unformat (input, "%U", unformat_ip6_address, &a6)) { ping_ip6 = 1; } else { error = clib_error_return (0, "expecting IPv6 address but got `%U'", format_unformat_error, input); } } else { error = clib_error_return (0, "expecting IP4/IP6 address `%U'. Usage: ping <addr> [source <intf>] [size <datasz>] [repeat <count>] [verbose]", format_unformat_error, input); goto done; } /* allow for the second AF in the same ping */ if (!ping_ip4 && (unformat (input, "ipv4"))) { if (unformat (input, "%U", unformat_ip4_address, &a4)) { ping_ip4 = 1; } } else if (!ping_ip6 && (unformat (input, "ipv6"))) { if (unformat (input, "%U", unformat_ip6_address, &a6)) { ping_ip6 = 1; } } /* parse the rest of the parameters in a cycle */ while (!unformat_eof (input, NULL)) { if (unformat (input, "source")) { if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index)) { error = clib_error_return (0, "unknown interface `%U'", format_unformat_error, input); goto done; } } else if (unformat (input, "size")) { if (!unformat (input, "%u", &data_len)) { error = clib_error_return (0, "expecting size but got `%U'", format_unformat_error, input); goto done; } if (data_len > PING_MAXIMUM_DATA_SIZE) { error = clib_error_return (0, "%d is bigger than maximum allowed payload size %d", data_len, PING_MAXIMUM_DATA_SIZE); goto done; } } else if (unformat (input, "table-id")) { if (!unformat (input, "du", &table_id)) { error = clib_error_return (0, "expecting table-id but got `%U'", format_unformat_error, input); goto done; } } else if (unformat (input, "interval")) { if (!unformat (input, "%f", &ping_interval)) { error = clib_error_return (0, "expecting interval (floating point number) got `%U'", format_unformat_error, input); goto done; } } else if (unformat (input, "repeat")) { if (!unformat (input, "%u", &ping_repeat)) { error = clib_error_return (0, "expecting repeat count but got `%U'", format_unformat_error, input); goto done; } } else if (unformat (input, "burst")) { if (!unformat (input, "%u", &ping_burst)) { error = clib_error_return (0, "expecting burst count but got `%U'", format_unformat_error, input); goto done; } } else if (unformat (input, "verbose")) { verbose = 1; } else { error = clib_error_return (0, "unknown input `%U'", format_unformat_error, input); goto done; } } if (ping_burst < 1 || ping_burst > VLIB_FRAME_SIZE) return clib_error_return (0, "burst size must be between 1 and %u", VLIB_FRAME_SIZE); run_ping_ip46_address (vm, table_id, ping_ip4 ? &a4 : NULL, ping_ip6 ? &a6 : NULL, sw_if_index, ping_interval, ping_repeat, data_len, ping_burst, verbose); done: return error; } /*? * This command sends an ICMP ECHO_REQUEST to network hosts. The address * can be an IPv4 or IPv6 address (or both at the same time). * * @cliexpar * @parblock * Example of how ping an IPv4 address: * @cliexstart{ping 172.16.1.2 source GigabitEthernet2/0/0 repeat 2} * 64 bytes from 172.16.1.2: icmp_seq=1 ttl=64 time=.1090 ms * 64 bytes from 172.16.1.2: icmp_seq=2 ttl=64 time=.0914 ms * * Statistics: 2 sent, 2 received, 0% packet loss * @cliexend * * Example of how ping both an IPv4 address and IPv6 address at the same time: * @cliexstart{ping 172.16.1.2 ipv6 fe80::24a5:f6ff:fe9c:3a36 source GigabitEthernet2/0/0 repeat 2 verbose} * Adjacency index: 10, sw_if_index: 1 * Adj: ip6-discover-neighbor * Adj Interface: 0 * Forced set interface: 1 * Adjacency index: 0, sw_if_index: 4294967295 * Adj: ip4-miss * Adj Interface: 0 * Forced set interface: 1 * Source address: 172.16.1.1 * 64 bytes from 172.16.1.2: icmp_seq=1 ttl=64 time=.1899 ms * Adjacency index: 10, sw_if_index: 1 * Adj: ip6-discover-neighbor * Adj Interface: 0 * Forced set interface: 1 * Adjacency index: 0, sw_if_index: 4294967295 * Adj: ip4-miss * Adj Interface: 0 * Forced set interface: 1 * Source address: 172.16.1.1 * 64 bytes from 172.16.1.2: icmp_seq=2 ttl=64 time=.0910 ms * * Statistics: 4 sent, 2 received, 50% packet loss * @cliexend * @endparblock ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (ping_command, static) = { .path = "ping", .function = ping_ip_address, .short_help = "ping {<ip-addr> | ipv4 <ip4-addr> | ipv6 <ip6-addr>}" " [ipv4 <ip4-addr> | ipv6 <ip6-addr>] [source <interface>]" " [size <pktsize>] [interval <sec>] [repeat <cnt>] [table-id <id>]" " [verbose]", .is_mp_safe = 1, }; /* *INDENT-ON* */ static clib_error_t * ping_cli_init (vlib_main_t * vm) { ping_main_t *pm = &ping_main; pm->ip6_main = &ip6_main; pm->ip4_main = &ip4_main; icmp6_register_type (vm, ICMP6_echo_reply, ip6_icmp_echo_reply_node.index); ip4_icmp_register_type (vm, ICMP4_echo_reply, ip4_icmp_echo_reply_node.index); return 0; } VLIB_INIT_FUNCTION (ping_cli_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */