--- /dev/null
+/*
+ * Copyright (c) 2017 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/vnet.h>
+#include <vlib/vlib.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vlibsocket/api.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ip/ip6_hop_by_hop.h>
+#include <ioam/encap/ip6_ioam_trace.h>
+#include <ioam/encap/ip6_ioam_e2e.h>
+#include <ioam/udp-ping/udp_ping_packet.h>
+#include <ioam/udp-ping/udp_ping.h>
+#include <ioam/udp-ping/udp_ping_util.h>
+#include <vnet/sr/sr_packet.h>
+
+typedef enum
+{
+ UDP_PING_NEXT_DROP,
+ UDP_PING_NEXT_PUNT,
+ UDP_PING_NEXT_UDP_LOOKUP,
+ UDP_PING_NEXT_ICMP,
+ UDP_PING_NEXT_IP6_LOOKUP,
+ UDP_PING_NEXT_IP6_DROP,
+ UDP_PING_N_NEXT,
+} udp_ping_next_t;
+
+udp_ping_main_t udp_ping_main;
+
+uword
+udp_ping_process (vlib_main_t * vm,
+ vlib_node_runtime_t * rt, vlib_frame_t * f);
+
+extern int
+ip6_hbh_ioam_trace_data_list_handler (vlib_buffer_t * b, ip6_header_t * ip,
+ ip6_hop_by_hop_option_t * opt);
+
+typedef struct
+{
+ ip6_address_t src;
+ ip6_address_t dst;
+ u16 src_port;
+ u16 dst_port;
+ u16 handle;
+ u16 next_index;
+ u8 msg_type;
+} udp_ping_trace_t;
+
+/* packet trace format function */
+static u8 *
+format_udp_ping_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ udp_ping_trace_t *t = va_arg (*args, udp_ping_trace_t *);
+
+ s = format (s, "udp-ping-local: src %U, dst %U, src_port %u, dst_port %u "
+ "handle %u, next_index %u, msg_type %u",
+ format_ip6_address, &t->src,
+ format_ip6_address, &t->dst,
+ t->src_port, t->dst_port,
+ t->handle, t->next_index, t->msg_type);
+ return s;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (udp_ping_node, static) =
+{
+ .function = udp_ping_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "udp-ping-process",
+};
+/* *INDENT-ON* */
+
+void
+udp_ping_calculate_timer_interval (void)
+{
+ int i;
+ ip46_udp_ping_flow *flow = NULL;
+ u16 min_interval = 0x1e9;
+
+ for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++)
+ {
+ if (pool_is_free_index (udp_ping_main.ip46_flow, i))
+ continue;
+
+ flow = pool_elt_at_index (udp_ping_main.ip46_flow, i);
+
+ if (min_interval > flow->udp_data.interval)
+ min_interval = flow->udp_data.interval;
+ }
+
+ if (udp_ping_main.timer_interval != min_interval)
+ {
+ udp_ping_main.timer_interval = min_interval;
+ vlib_process_signal_event (udp_ping_main.vlib_main,
+ udp_ping_node.index, EVENT_SIG_RECHECK, 0);
+ }
+}
+
+void
+ip46_udp_ping_set_flow (ip46_address_t src, ip46_address_t dst,
+ u16 start_src_port, u16 end_src_port,
+ u16 start_dst_port, u16 end_dst_port,
+ u16 interval, u8 fault_det, u8 is_disable)
+{
+ u8 found = 0;
+ ip46_udp_ping_flow *flow = NULL;
+ int i;
+
+ for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++)
+ {
+ if (pool_is_free_index (udp_ping_main.ip46_flow, i))
+ continue;
+
+ flow = pool_elt_at_index (udp_ping_main.ip46_flow, i);
+ if ((0 == udp_ping_compare_flow (src, dst,
+ start_src_port, end_src_port,
+ start_dst_port, end_dst_port, flow)))
+ {
+ found = 1;
+ break;
+ }
+ }
+
+ if (found)
+ {
+ u16 cur_interval;
+ if (is_disable)
+ {
+ cur_interval = flow->udp_data.interval;
+ udp_ping_free_flow_data (flow);
+ pool_put_index (udp_ping_main.ip46_flow, i);
+ if (udp_ping_main.timer_interval == interval)
+ udp_ping_calculate_timer_interval ();
+ return;
+ }
+
+ cur_interval = flow->udp_data.interval;
+ flow->udp_data.interval = interval;
+ if (udp_ping_main.timer_interval > interval)
+ {
+ udp_ping_main.timer_interval = interval;
+ vlib_process_signal_event (udp_ping_main.vlib_main,
+ udp_ping_node.index,
+ EVENT_SIG_RECHECK, 0);
+ }
+ else if (udp_ping_main.timer_interval == cur_interval)
+ udp_ping_calculate_timer_interval ();
+
+ return;
+ }
+
+ /* Delete operation and item not found */
+ if (is_disable)
+ return;
+
+ /* Alloc new session */
+ pool_get_aligned (udp_ping_main.ip46_flow, flow, CLIB_CACHE_LINE_BYTES);
+ udp_ping_populate_flow (src, dst,
+ start_src_port, end_src_port,
+ start_dst_port, end_dst_port,
+ interval, fault_det, flow);
+
+ udp_ping_create_rewrite (flow, (flow - udp_ping_main.ip46_flow));
+
+ if (udp_ping_main.timer_interval > interval)
+ {
+ udp_ping_main.timer_interval = interval;
+ vlib_process_signal_event (udp_ping_main.vlib_main,
+ udp_ping_node.index, EVENT_SIG_RECHECK, 0);
+ }
+ return;
+}
+
+uword
+unformat_port_range (unformat_input_t * input, va_list * args)
+{
+ u16 *start_port, *end_port;
+ uword c;
+ u8 colon_present = 0;
+
+ start_port = va_arg (*args, u16 *);
+ end_port = va_arg (*args, u16 *);
+
+ *start_port = *end_port = 0;
+ /* Get start port */
+ while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT)
+ {
+ switch (c)
+ {
+ case '0' ... '9':
+ *start_port = ((*start_port) * 10) + (c - '0');
+ break;
+
+ case ':':
+ colon_present = 1;
+ break;
+
+ default:
+ return 0;
+ }
+
+ if (colon_present)
+ break;
+ }
+
+ if (!colon_present)
+ return 0;
+
+ /* Get end port */
+ while ((c = unformat_get_input (input)) != UNFORMAT_END_OF_INPUT)
+ {
+ switch (c)
+ {
+ case '0' ... '9':
+ *end_port = ((*end_port) * 10) + (c - '0');
+ break;
+
+ default:
+ return 1;
+ }
+ }
+
+ if (end_port < start_port)
+ return 0;
+
+ return 1;
+}
+
+static clib_error_t *
+set_udp_ping_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ ip46_address_t dst, src;
+ u16 start_src_port, end_src_port;
+ u16 start_dst_port, end_dst_port;
+ u32 interval;
+ u8 is_disable = 0;
+ u8 fault_det = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat
+ (input, "src %U", unformat_ip46_address, &src, IP46_TYPE_ANY))
+ ;
+ else if (unformat (input, "src-port-range %U",
+ unformat_port_range, &start_src_port, &end_src_port))
+ ;
+ else
+ if (unformat
+ (input, "dst %U", unformat_ip46_address, &dst, IP46_TYPE_ANY))
+ ;
+ else if (unformat (input, "dst-port-range %U",
+ unformat_port_range, &start_dst_port, &end_dst_port))
+ ;
+ else if (unformat (input, "interval %d", &interval))
+ ;
+ else if (unformat (input, "fault-detect"))
+ fault_det = 1;
+ else if (unformat (input, "disable"))
+ is_disable = 1;
+ else
+ break;
+ }
+
+ ip46_udp_ping_set_flow (src, dst, start_src_port, end_src_port,
+ start_dst_port, end_dst_port, (u16) interval,
+ fault_det, is_disable);
+
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (set_udp_ping_command, static) =
+{
+ .path = "set udp-ping",
+ .short_help =
+ "set udp-ping src <local IPv6 address> src-port-range <local port range> \
+ dst <remote IPv6 address> dst-port-range <destination port range> \
+ interval <time interval in sec for which ping packet will be sent> \
+ [disable]",
+ .function = set_udp_ping_command_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+show_udp_ping_summary_cmd_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ u8 *s = 0;
+ int i, j;
+ ip46_udp_ping_flow *ip46_flow;
+ u16 src_port, dst_port;
+ udp_ping_flow_data *stats;
+
+ s = format (s, "UDP-Ping data:\n");
+
+ for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++)
+ {
+ if (pool_is_free_index (udp_ping_main.ip46_flow, i))
+ continue;
+
+ ip46_flow = pool_elt_at_index (udp_ping_main.ip46_flow, i);
+ s = format (s, "Src: %U, Dst: %U\n",
+ format_ip46_address, &ip46_flow->src, IP46_TYPE_ANY,
+ format_ip46_address, &ip46_flow->dst, IP46_TYPE_ANY);
+
+ s = format (s, "Start src port: %u, End src port: %u\n",
+ ip46_flow->udp_data.start_src_port,
+ ip46_flow->udp_data.end_src_port);
+ s = format (s, "Start dst port: %u, End dst port: %u\n",
+ ip46_flow->udp_data.start_dst_port,
+ ip46_flow->udp_data.end_dst_port);
+ s = format (s, "Interval: %u\n", ip46_flow->udp_data.interval);
+
+ j = 0;
+ for (src_port = ip46_flow->udp_data.start_src_port;
+ src_port <= ip46_flow->udp_data.end_src_port; src_port++)
+ {
+ for (dst_port = ip46_flow->udp_data.start_dst_port;
+ dst_port <= ip46_flow->udp_data.end_dst_port; dst_port++)
+ {
+ stats = ip46_flow->udp_data.stats + j;
+ s =
+ format (s, "\nSrc Port - %u, Dst Port - %u, Flow CTX - %u\n",
+ src_port, dst_port, stats->flow_ctx);
+ s =
+ format (s, "Path State - %s\n",
+ (stats->retry > MAX_PING_RETRIES) ? "Down" : "Up");
+ s = format (s, "Path Data:\n");
+ s = print_analyse_flow (s,
+ &ip46_flow->udp_data.
+ stats[j].analyse_data);
+ j++;
+ }
+ }
+ s = format (s, "\n\n");
+ }
+
+ vlib_cli_output (vm, "%v", s);
+ vec_free (s);
+ return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_udp_ping_cmd, static) =
+{
+ .path = "show udp-ping summary",
+ .short_help = "Summary of udp-ping",
+ .function = show_udp_ping_summary_cmd_fn,
+};
+/* *INDENT-ON* */
+
+/**
+ * @brief UDP-Ping Process node.
+ * @node udp-ping-process
+ *
+ * This is process node which wakes up when periodically to send
+ * out udp probe packets for all configured sessions.
+ *
+ * @param vm vlib_main_t corresponding to the current thread.
+ * @param node vlib_node_runtime_t data for this node.
+ * @param frame vlib_frame_t whose contents should be dispatched.
+ *
+ */
+uword
+udp_ping_process (vlib_main_t * vm,
+ vlib_node_runtime_t * rt, vlib_frame_t * f)
+{
+ f64 now;
+ uword *event_data = 0;
+ int i;
+ ip46_udp_ping_flow *ip46_flow;
+
+ while (1)
+ {
+ vec_reset_length (event_data);
+ vlib_process_wait_for_event_or_clock (vm, udp_ping_main.timer_interval);
+ (void) vlib_process_get_events (vm, &event_data);
+ now = vlib_time_now (vm);
+
+ for (i = 0; i < vec_len (udp_ping_main.ip46_flow); i++)
+ {
+ if (pool_is_free_index (udp_ping_main.ip46_flow, i))
+ continue;
+
+ ip46_flow = pool_elt_at_index (udp_ping_main.ip46_flow, i);
+ if (ip46_flow->udp_data.next_send_time < now)
+ udp_ping_send_ip6_pak (udp_ping_main.vlib_main, ip46_flow);
+ }
+ }
+ return 0;
+}
+
+/**
+ * @brief HopByHop analyse function for udp-ping response.
+ *
+ * Walks through all hbh options present in udp-ping response
+ * and uses analyser library for the analysis.
+ *
+ */
+void
+udp_ping_analyse_hbh (vlib_buffer_t * b0,
+ u32 flow_id,
+ u16 src_port,
+ u16 dst_port,
+ ip6_hop_by_hop_option_t * opt0,
+ ip6_hop_by_hop_option_t * limit0, u16 len)
+{
+ u8 type0;
+ ip46_udp_ping_flow *ip46_flow;
+ u16 flow_index;
+ ioam_analyser_data_t *data;
+ ioam_e2e_option_t *e2e;
+ ioam_trace_option_t *trace;
+
+ ip46_flow = udp_ping_main.ip46_flow + flow_id;
+ flow_index = (src_port - ip46_flow->udp_data.start_src_port) *
+ (ip46_flow->udp_data.end_dst_port - ip46_flow->udp_data.start_dst_port +
+ 1);
+ flow_index += (dst_port - ip46_flow->udp_data.start_dst_port);
+ data = &(ip46_flow->udp_data.stats[flow_index].analyse_data);
+
+ data->pkt_counter++;
+ data->bytes_counter += len;
+
+ vnet_buffer (b0)->l2_classify.opaque_index =
+ ip46_flow->udp_data.stats[flow_index].flow_ctx;
+
+ while (opt0 < limit0)
+ {
+ type0 = opt0->type;
+ switch (type0)
+ {
+ case HBH_OPTION_TYPE_IOAM_TRACE_DATA_LIST:
+ /* Add trace for here as it hasnt been done yet */
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
+ trace = (ioam_trace_option_t *) opt0;
+ if (PREDICT_FALSE
+ (trace->trace_hdr.ioam_trace_type & BIT_LOOPBACK_REPLY))
+ {
+ ip6_ioam_analyse_hbh_trace_loopback (data, &trace->trace_hdr,
+ (trace->hdr.length - 2));
+ return;
+ }
+ ip6_hbh_ioam_trace_data_list_handler (b0,
+ vlib_buffer_get_current (b0),
+ opt0);
+ (void) ip6_ioam_analyse_hbh_trace (data, &trace->trace_hdr, len,
+ (trace->hdr.length - 2));
+ break;
+ case HBH_OPTION_TYPE_IOAM_EDGE_TO_EDGE:
+ e2e = (ioam_e2e_option_t *) opt0;
+ (void) ip6_ioam_analyse_hbh_e2e (data, &e2e->e2e_hdr, len);
+ break;
+ case 0: /* Pad1 */
+ opt0 = (ip6_hop_by_hop_option_t *) ((u8 *) opt0) + 1;
+ continue;
+ case 1: /* PadN */
+ break;
+ default:
+ break;
+ }
+ opt0 = (ip6_hop_by_hop_option_t *) (((u8 *) opt0) + opt0->length +
+ sizeof (ip6_hop_by_hop_option_t));
+ }
+ ip46_flow->udp_data.stats[flow_index].retry = 0;
+}
+
+/**
+ * @brief UDP-Ping request/response handler function.
+ *
+ * Checks udp-ping packet type - request/response and handles them.
+ * If not udp-ping packet then, strips off hbh options and enques
+ * packet to protocol registered node to enable next protocol processing.
+ *
+ */
+void
+udp_ping_local_analyse (vlib_buffer_t * b0,
+ ip6_header_t * ip0,
+ ip6_hop_by_hop_header_t * hbh0, u16 * next0)
+{
+ ip6_main_t *im = &ip6_main;
+ ip_lookup_main_t *lm = &im->lookup_main;
+
+ *next0 = UDP_PING_NEXT_IP6_DROP;
+
+ if (PREDICT_TRUE (hbh0->protocol == IP_PROTOCOL_UDP))
+ {
+ ip6_hop_by_hop_option_t *opt0;
+ ip6_hop_by_hop_option_t *limit0;
+ u16 p_len0;
+ udp_ping_t *udp0;
+
+ /* Check for udp ping packet */
+ udp0 = (udp_ping_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3));
+ opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1);
+ if ((udp0->ping_data.probe_marker1 ==
+ clib_host_to_net_u32 (UDP_PING_PROBE_MARKER1)) &&
+ (udp0->ping_data.probe_marker2 ==
+ clib_host_to_net_u32 (UDP_PING_PROBE_MARKER2)))
+ {
+ if (udp0->ping_data.msg_type == UDP_PING_PROBE)
+ {
+ udp_ping_create_reply_from_probe_ip6 (ip0, hbh0, udp0);
+ /* Skip e2e processing */
+ vnet_buffer (b0)->l2_classify.opaque_index = 0x7FFFFFFF;
+ *next0 = UDP_PING_NEXT_IP6_LOOKUP;
+ return;
+ }
+
+ /* Reply */
+ opt0 = (ip6_hop_by_hop_option_t *) (hbh0 + 1);
+ limit0 = (ip6_hop_by_hop_option_t *)
+ ((u8 *) hbh0 + ((hbh0->length + 1) << 3));
+ p_len0 = clib_net_to_host_u16 (ip0->payload_length);
+ udp_ping_analyse_hbh (b0,
+ clib_net_to_host_u16 (udp0->
+ ping_data.sender_handle),
+ clib_net_to_host_u16 (udp0->udp.dst_port),
+ clib_net_to_host_u16 (udp0->udp.src_port),
+ opt0, limit0, p_len0);
+
+ /* UDP Ping packet, so return */
+ return;
+ }
+ }
+
+ /* If next header is SR, then destination may get overwritten to
+ * remote address. So pass it to SR processing as it may be local packet
+ * afterall
+ */
+ if (PREDICT_FALSE (hbh0->protocol == IPPROTO_IPV6_ROUTE))
+ goto end;
+
+ /* Other case remove hbh-ioam headers */
+ u64 *copy_dst0, *copy_src0;
+ u16 new_l0;
+
+ vlib_buffer_advance (b0, (hbh0->length + 1) << 3);
+
+ new_l0 = clib_net_to_host_u16 (ip0->payload_length) -
+ ((hbh0->length + 1) << 3);
+
+ ip0->payload_length = clib_host_to_net_u16 (new_l0);
+
+ ip0->protocol = hbh0->protocol;
+
+ copy_src0 = (u64 *) ip0;
+ copy_dst0 = copy_src0 + (hbh0->length + 1);
+ copy_dst0[4] = copy_src0[4];
+ copy_dst0[3] = copy_src0[3];
+ copy_dst0[2] = copy_src0[2];
+ copy_dst0[1] = copy_src0[1];
+ copy_dst0[0] = copy_src0[0];
+
+end:
+ *next0 = lm->local_next_by_ip_protocol[hbh0->protocol];
+ return;
+}
+
+/**
+ * @brief udp ping request/response packet receive node.
+ * @node udp-ping-local
+ *
+ * This function receives udp ping request/response packets and process them.
+ * For request packets, response is created and sent.
+ * For response packets, they are analysed and results stored.
+ *
+ * @param vm vlib_main_t corresponding to the current thread.
+ * @param node vlib_node_runtime_t data for this node.
+ * @param frame vlib_frame_t whose contents should be dispatched.
+ *
+ * @par Graph mechanics: buffer, next index usage
+ *
+ * <em>Uses:</em>
+ * - <code>udp_ping_local_analyse(p0, ip0, hbh0, &next0)</code>
+ * - Checks packet type - request/respnse and process them.
+ *
+ * <em>Next Index:</em>
+ * - Dispatches the packet to ip6-lookup/ip6-drop depending on type of packet.
+ */
+static uword
+udp_ping_local_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ udp_ping_next_t next_index;
+ u32 *from, *to_next, n_left_from, n_left_to_next;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 4 && n_left_to_next >= 2)
+ {
+ vlib_buffer_t *p0, *p1;
+ ip6_header_t *ip0, *ip1;
+ ip6_hop_by_hop_header_t *hbh0, *hbh1;
+ u16 next0, next1;
+ u32 pi0, pi1;
+
+ /* Prefetch next iteration. */
+ {
+ vlib_buffer_t *p2, *p3;
+
+ p2 = vlib_get_buffer (vm, from[2]);
+ p3 = vlib_get_buffer (vm, from[3]);
+
+ vlib_prefetch_buffer_header (p2, LOAD);
+ vlib_prefetch_buffer_header (p3, LOAD);
+
+ /* Prefetch 3 cache lines as we need to look deep into packet */
+ CLIB_PREFETCH (p2->data, 3 * CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (p3->data, 3 * CLIB_CACHE_LINE_BYTES, STORE);
+ }
+
+ pi0 = to_next[0] = from[0];
+ pi1 = to_next[1] = from[1];
+ from += 2;
+ n_left_from -= 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ p1 = vlib_get_buffer (vm, pi1);
+
+ ip0 = vlib_buffer_get_current (p0);
+ ip1 = vlib_buffer_get_current (p1);
+
+ hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1);
+ hbh1 = (ip6_hop_by_hop_header_t *) (ip1 + 1);
+
+ udp_ping_local_analyse (p0, ip0, hbh0, &next0);
+ udp_ping_local_analyse (p1, ip1, hbh1, &next1);
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (p0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ udp_ping_trace_t *t0 =
+ vlib_add_trace (vm, node, p0, sizeof (*t0));
+ udp_ping_t *udp0;
+
+ /* Check for udp ping packet */
+ udp0 =
+ (udp_ping_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3));
+ t0->src = ip0->src_address;
+ t0->dst = ip0->dst_address;
+ t0->src_port = clib_net_to_host_u16 (udp0->udp.src_port);
+ t0->dst_port = clib_net_to_host_u16 (udp0->udp.dst_port);
+ t0->handle =
+ clib_net_to_host_u16 (udp0->ping_data.sender_handle);
+ t0->msg_type = udp0->ping_data.msg_type;
+ t0->next_index = next0;
+ }
+ if (p1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ udp_ping_trace_t *t1 =
+ vlib_add_trace (vm, node, p1, sizeof (*t1));
+ udp_ping_t *udp1;
+
+ /* Check for udp ping packet */
+ udp1 =
+ (udp_ping_t *) ((u8 *) hbh1 + ((hbh1->length + 1) << 3));
+ t1->src = ip1->src_address;
+ t1->dst = ip1->dst_address;
+ t1->src_port = clib_net_to_host_u16 (udp1->udp.src_port);
+ t1->dst_port = clib_net_to_host_u16 (udp1->udp.dst_port);
+ t1->handle =
+ clib_net_to_host_u16 (udp1->ping_data.sender_handle);
+ t1->msg_type = udp1->ping_data.msg_type;
+ t1->next_index = next1;
+ }
+ }
+
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ pi0, pi1, next0, next1);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ vlib_buffer_t *p0;
+ ip6_header_t *ip0;
+ ip6_hop_by_hop_header_t *hbh0;
+ u16 next0;
+ u32 pi0;
+
+ pi0 = from[0];
+ to_next[0] = pi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ p0 = vlib_get_buffer (vm, pi0);
+ ip0 = vlib_buffer_get_current (p0);
+ hbh0 = (ip6_hop_by_hop_header_t *) (ip0 + 1);
+
+ udp_ping_local_analyse (p0, ip0, hbh0, &next0);
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (p0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ udp_ping_trace_t *t0 =
+ vlib_add_trace (vm, node, p0, sizeof (*t0));
+ udp_ping_t *udp0;
+
+ /* Check for udp ping packet */
+ udp0 =
+ (udp_ping_t *) ((u8 *) hbh0 + ((hbh0->length + 1) << 3));
+ t0->src = ip0->src_address;
+ t0->dst = ip0->dst_address;
+ t0->src_port = clib_net_to_host_u16 (udp0->udp.src_port);
+ t0->dst_port = clib_net_to_host_u16 (udp0->udp.dst_port);
+ t0->handle =
+ clib_net_to_host_u16 (udp0->ping_data.sender_handle);
+ t0->msg_type = udp0->ping_data.msg_type;
+ t0->next_index = next0;
+ }
+ }
+
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ pi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+/*
+ * Node for udp-ping-local
+ */
+VLIB_REGISTER_NODE (udp_ping_local, static) =
+{
+ .function = udp_ping_local_node_fn,
+ .name = "udp-ping-local",
+ .vector_size = sizeof (u32),
+ .format_trace = format_udp_ping_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_next_nodes = UDP_PING_N_NEXT,
+ .next_nodes =
+ {
+ [UDP_PING_NEXT_DROP] = "error-drop",
+ [UDP_PING_NEXT_PUNT] = "error-punt",
+ [UDP_PING_NEXT_UDP_LOOKUP] = "ip6-udp-lookup",
+ [UDP_PING_NEXT_ICMP] = "ip6-icmp-input",
+ [UDP_PING_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [UDP_PING_NEXT_IP6_DROP] = "ip6-drop",
+ },
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+udp_ping_init (vlib_main_t * vm)
+{
+ clib_error_t *error = 0;
+
+ udp_ping_main.vlib_main = vm;
+ udp_ping_main.vnet_main = vnet_get_main ();
+ udp_ping_main.timer_interval = 1e9;
+
+ if ((error = vlib_call_init_function (vm, ip_main_init)))
+ return (error);
+
+ ip6_register_protocol (IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS,
+ udp_ping_local.index);
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (udp_ping_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff