--- /dev/null
+/*
+ * 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 <vnet/ip/ping.h>
+
+u8 *
+format_icmp4_input_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 *);
+ icmp4_input_trace_t *t = va_arg (*va, icmp4_input_trace_t *);
+
+ s = format (s, "%U",
+ format_ip4_header, t->packet_data, sizeof (t->packet_data));
+
+ 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 void
+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;
+ }
+
+ uword *p = hash_get (pm->ping_run_by_icmp_id,
+ clib_net_to_host_u16 (net_icmp_id));
+ if (!p)
+ return;
+
+ 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);
+}
+
+/*
+ * 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);
+
+ signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP6, b0);
+
+ /* push this pkt to the next graph node, always error-drop */
+ next0 = ICMP6_ECHO_REPLY_NEXT_NORMAL;
+ 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_icmp6_input_trace,
+ .n_next_nodes = ICMP6_ECHO_REPLY_N_NEXT,
+ .next_nodes = {
+ [ICMP6_ECHO_REPLY_NEXT_NORMAL] = "error-drop",
+ },
+};
+/* *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);
+
+ /* push this pkt to the next graph node, always error-drop */
+ signal_ip46_icmp_reply_event (vm, PING_RESPONSE_IP4, b0);
+
+ next0 = ICMP4_ECHO_REPLY_NEXT_NORMAL;
+ 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_icmp4_input_trace,
+ .n_next_nodes = ICMP4_ECHO_REPLY_N_NEXT,
+ .next_nodes = {
+ [ICMP4_ECHO_REPLY_NEXT_NORMAL] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+char *ip6_lookup_next_nodes[] = IP6_LOOKUP_NEXT_NODES;
+char *ip4_lookup_next_nodes[] = IP4_LOOKUP_NEXT_NODES;
+
+/* get first interface address */
+static ip6_address_t *
+ip6_interface_first_address (ip6_main_t * im, u32 sw_if_index)
+{
+ ip_lookup_main_t *lm = &im->lookup_main;
+ ip_interface_address_t *ia = 0;
+ ip6_address_t *result = 0;
+
+ foreach_ip_interface_address (lm, ia, sw_if_index,
+ 1 /* honor unnumbered */ ,
+ (
+ {
+ ip6_address_t * a =
+ ip_interface_address_get_address (lm, ia);
+ result = a;
+ break;
+ }
+ ));
+ return result;
+}
+
+/* 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);
+
+ for (i = 0; i < sizeof (icmp46_echo->data); i++)
+ {
+ icmp46_echo->data[i] = i % 256;
+ }
+
+ if (data_len > sizeof (icmp46_echo_request_t))
+ {
+ data_len = sizeof (icmp46_echo_request_t);
+ }
+ return data_len;
+}
+
+/*
+ * Given adj index, return sw_if_index, possibly overwritten
+ * by a parameter. There is mostly debug outputs here,
+ * but it turned out handy to have these.
+ */
+
+static u32
+adj_index_to_sw_if_index (vlib_main_t * vm, ip_lookup_main_t * lm,
+ char *lookup_next_nodes[], u32 adj_index0,
+ u32 sw_if_index, u8 verbose)
+{
+ ip_adjacency_t *adj0 = ip_get_adjacency (lm, adj_index0);
+ u32 sw_if_index0 = adj0->rewrite_header.sw_if_index;
+ if (verbose)
+ {
+ vlib_cli_output (vm, "Adjacency index: %u, sw_if_index: %u\n",
+ adj_index0, sw_if_index0);
+ vlib_cli_output (vm, "Adj: %s\n",
+ lookup_next_nodes[adj0->lookup_next_index]);
+ vlib_cli_output (vm, "Adj Interface: %d\n", adj0->if_address_index);
+ }
+
+ if (~0 != sw_if_index)
+ {
+ sw_if_index0 = sw_if_index;
+ if (verbose)
+ {
+ vlib_cli_output (vm, "Forced set interface: %d\n", sw_if_index0);
+ }
+ }
+ return sw_if_index0;
+}
+
+static send_ip46_ping_result_t
+send_ip6_ping (vlib_main_t * vm, ip6_main_t * im, ip6_address_t * pa6,
+ u32 sw_if_index, u16 seq_host, u16 id_host, u16 data_len,
+ u8 verbose)
+{
+ icmp6_echo_request_header_t *h0;
+ u32 bi0 = 0;
+ u32 sw_if_index0;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ int bogus_length = 0;
+ u32 adj_index0;
+ vlib_buffer_t *p0;
+ vlib_frame_t *f;
+ u32 *to_next;
+ u32 fib_index0;
+
+ if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
+ return SEND_PING_ALLOC_FAIL;
+
+ p0 = vlib_get_buffer (vm, bi0);
+
+ /* Determine sw_if_index0 of source intf, may be force-set via sw_if_index. */
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] = 0;
+ vnet_buffer (p0)->sw_if_index[VLIB_TX] = ~0; /* use interface VRF */
+ fib_index0 = 0;
+ adj_index0 = ip6_fib_lookup_with_table (im, fib_index0, pa6);
+ sw_if_index0 =
+ adj_index_to_sw_if_index (vm, lm, ip6_lookup_next_nodes, adj_index0,
+ sw_if_index, verbose);
+ if ((~0 == sw_if_index0) && (~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_index0;
+
+ 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_index0);
+ 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;
+ f->n_vectors = 1;
+ 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,
+ ip4_address_t * pa4,
+ u32 sw_if_index,
+ u16 seq_host, u16 id_host, u16 data_len, u8 verbose)
+{
+ icmp4_echo_request_header_t *h0;
+ u32 bi0 = 0;
+ u32 sw_if_index0;
+ ip_lookup_main_t *lm = &im->lookup_main;
+ u32 adj_index0;
+ vlib_buffer_t *p0;
+ vlib_frame_t *f;
+ u32 *to_next;
+ u32 fib_index0;
+ u32 if_add_index0;
+
+ if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
+ return SEND_PING_ALLOC_FAIL;
+
+ p0 = vlib_get_buffer (vm, bi0);
+
+ /* Determine sw_if_index0 of the source intf, may be force-set via sw_if_index. */
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] = 0;
+ vnet_buffer (p0)->sw_if_index[VLIB_TX] = ~0; /* use interface VRF */
+ fib_index0 = 0;
+ adj_index0 = ip4_fib_lookup_with_table (im, fib_index0, pa4, 0);
+ sw_if_index0 =
+ adj_index_to_sw_if_index (vm, lm, ip4_lookup_next_nodes, adj_index0,
+ sw_if_index, verbose);
+ if ((~0 == sw_if_index0) && (~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_index0;
+
+ 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_index0];
+ 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;
+ f->n_vectors = 1;
+ 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, ip4_address_t * pa4,
+ ip6_address_t * pa6, u32 sw_if_index,
+ f64 ping_interval, u32 ping_repeat, u32 data_len,
+ 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 = rand ();
+ 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, pa6,
+ sw_if_index, i, icmp_id, data_len,
+ verbose)))
+ {
+ n_requests++;
+ }
+ if (pa4 &&
+ (SEND_PING_OK == send_ip4_ping (vm, ping_main.ip4_main, pa4,
+ sw_if_index, i, icmp_id, data_len,
+ verbose)))
+ {
+ n_requests++;
+ }
+ 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[0];
+ 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[0];
+ 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;
+ 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;
+ ping_ip4 = ping_ip6 = 0;
+ u32 sw_if_index;
+ 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;
+ }
+ }
+ 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, "verbose"))
+ {
+ verbose = 1;
+ }
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ goto done;
+ }
+ }
+
+ run_ping_ip46_address (vm, ping_ip4 ? &a4 : NULL, ping_ip6 ? &a6 : NULL,
+ sw_if_index, ping_interval, ping_repeat, data_len,
+ verbose);
+done:
+ return error;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (ping_command, static) =
+{
+ .path = "ping",
+ .function = ping_ip_address,
+ .short_help = "Ping IP4/IP6 address from interface",
+ .long_help =
+ "Ping IPv4/IPv6 address (or both at the same time)\n"
+ "\n"
+ "Arguments:\n"
+ "\n"
+ "ADDRESS target (IPv4/IPv6)\n"
+ "ipv4 ADDRESS target IPv4 address\n"
+ "ipv6 ADDRESS target IPv6 address\n"
+ "interface STRING interface for the source address\n"
+ "size NUMBER size to send\n"
+ "repeat NUMBER how many echo requests to send\n"
+ "interval NUMBER interval between echo requests, in seconds (integer or fractional)\n"
+ "verbose print various low-level information\n"
+};
+/* *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);
Code Review / vpp.git / commitdiff