2 * flowprobe.c - ipfix probe plugin
4 * Copyright (c) 2016 Cisco and/or its affiliates.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
20 * @brief Per-packet IPFIX flow record generator plugin
22 * This file implements vpp plugin registration mechanics,
23 * debug CLI, and binary API handling.
26 #include <vnet/vnet.h>
27 #include <vpp/app/version.h>
28 #include <vnet/plugin/plugin.h>
29 #include <vnet/udp/udp_local.h>
30 #include <flowprobe/flowprobe.h>
32 #include <vlibapi/api.h>
33 #include <vlibmemory/api.h>
35 /* define message IDs */
36 #include <flowprobe/flowprobe.api_enum.h>
37 #include <flowprobe/flowprobe.api_types.h>
39 flowprobe_main_t flowprobe_main;
40 static vlib_node_registration_t flowprobe_timer_node;
41 uword flowprobe_walker_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
44 #define REPLY_MSG_ID_BASE fm->msg_id_base
45 #include <vlibapi/api_helper_macros.h>
47 /* Define the per-interface configurable features */
49 VNET_FEATURE_INIT (flow_perpacket_ip4, static) =
51 .arc_name = "ip4-output",
52 .node_name = "flowprobe-ip4",
53 .runs_before = VNET_FEATURES ("interface-output"),
56 VNET_FEATURE_INIT (flow_perpacket_ip6, static) =
58 .arc_name = "ip6-output",
59 .node_name = "flowprobe-ip6",
60 .runs_before = VNET_FEATURES ("interface-output"),
63 VNET_FEATURE_INIT (flow_perpacket_l2, static) = {
64 .arc_name = "interface-output",
65 .node_name = "flowprobe-l2",
66 .runs_before = VNET_FEATURES ("interface-output-arc-end"),
70 /* Macro to finish up custom dump fns */
71 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
74 vl_print (handle, (char *)s); \
78 static inline ipfix_field_specifier_t *
79 flowprobe_template_ip4_fields (ipfix_field_specifier_t * f)
81 #define flowprobe_template_ip4_field_count() 4
82 /* sourceIpv4Address, TLV type 8, u32 */
83 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
84 sourceIPv4Address, 4);
86 /* destinationIPv4Address, TLV type 12, u32 */
87 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
88 destinationIPv4Address, 4);
90 /* protocolIdentifier, TLV type 4, u8 */
91 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
92 protocolIdentifier, 1);
94 /* octetDeltaCount, TLV type 1, u64 */
95 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
101 static inline ipfix_field_specifier_t *
102 flowprobe_template_ip6_fields (ipfix_field_specifier_t * f)
104 #define flowprobe_template_ip6_field_count() 4
105 /* sourceIpv6Address, TLV type 27, 16 octets */
106 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
107 sourceIPv6Address, 16);
109 /* destinationIPv6Address, TLV type 28, 16 octets */
110 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
111 destinationIPv6Address, 16);
113 /* protocolIdentifier, TLV type 4, u8 */
114 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
115 protocolIdentifier, 1);
117 /* octetDeltaCount, TLV type 1, u64 */
118 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
124 static inline ipfix_field_specifier_t *
125 flowprobe_template_l2_fields (ipfix_field_specifier_t * f)
127 #define flowprobe_template_l2_field_count() 3
128 /* sourceMacAddress, TLV type 56, u8[6] we hope */
129 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
130 sourceMacAddress, 6);
132 /* destinationMacAddress, TLV type 80, u8[6] we hope */
133 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
134 destinationMacAddress, 6);
136 /* ethernetType, TLV type 256, u16 */
137 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
143 static inline ipfix_field_specifier_t *
144 flowprobe_template_common_fields (ipfix_field_specifier_t * f)
146 #define flowprobe_template_common_field_count() 5
147 /* ingressInterface, TLV type 10, u32 */
148 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
149 ingressInterface, 4);
152 /* egressInterface, TLV type 14, u32 */
153 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
157 /* packetDeltaCount, TLV type 2, u64 */
158 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
159 packetDeltaCount, 8);
162 /* flowStartNanoseconds, TLV type 156, u64 */
163 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
164 flowStartNanoseconds, 8);
167 /* flowEndNanoseconds, TLV type 157, u64 */
168 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
169 flowEndNanoseconds, 8);
175 static inline ipfix_field_specifier_t *
176 flowprobe_template_l4_fields (ipfix_field_specifier_t * f)
178 #define flowprobe_template_l4_field_count() 3
179 /* sourceTransportPort, TLV type 7, u16 */
180 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
181 sourceTransportPort, 2);
183 /* destinationTransportPort, TLV type 11, u16 */
184 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
185 destinationTransportPort, 2);
187 /* tcpControlBits, TLV type 6, u16 */
188 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
196 * @brief Create an IPFIX template packet rewrite string
197 * @param frm flow_report_main_t *
198 * @param fr flow_report_t *
199 * @param collector_address ip4_address_t * the IPFIX collector address
200 * @param src_address ip4_address_t * the source address we should use
201 * @param collector_port u16 the collector port we should use, host byte order
202 * @returns u8 * vector containing the indicated IPFIX template packet
205 flowprobe_template_rewrite_inline (ipfix_exporter_t *exp, flow_report_t *fr,
207 flowprobe_variant_t which)
211 ipfix_message_header_t *h;
212 ipfix_set_header_t *s;
213 ipfix_template_header_t *t;
214 ipfix_field_specifier_t *f;
215 ipfix_field_specifier_t *first_field;
217 ip4_ipfix_template_packet_t *tp;
219 flow_report_stream_t *stream;
220 flowprobe_main_t *fm = &flowprobe_main;
221 flowprobe_record_t flags = fr->opaque.as_uword;
222 bool collect_ip4 = false, collect_ip6 = false;
224 stream = &exp->streams[fr->stream_index];
226 if (flags & FLOW_RECORD_L3)
228 collect_ip4 = which == FLOW_VARIANT_L2_IP4 || which == FLOW_VARIANT_IP4;
229 collect_ip6 = which == FLOW_VARIANT_L2_IP6 || which == FLOW_VARIANT_IP6;
230 if (which == FLOW_VARIANT_L2_IP4)
231 flags |= FLOW_RECORD_L2_IP4;
232 if (which == FLOW_VARIANT_L2_IP6)
233 flags |= FLOW_RECORD_L2_IP6;
236 field_count += flowprobe_template_common_field_count ();
237 if (flags & FLOW_RECORD_L2)
238 field_count += flowprobe_template_l2_field_count ();
240 field_count += flowprobe_template_ip4_field_count ();
242 field_count += flowprobe_template_ip6_field_count ();
243 if (flags & FLOW_RECORD_L4)
244 field_count += flowprobe_template_l4_field_count ();
246 /* allocate rewrite space */
248 (rewrite, sizeof (ip4_ipfix_template_packet_t)
249 + field_count * sizeof (ipfix_field_specifier_t) - 1,
250 CLIB_CACHE_LINE_BYTES);
252 tp = (ip4_ipfix_template_packet_t *) rewrite;
253 ip = (ip4_header_t *) & tp->ip4;
254 udp = (udp_header_t *) (ip + 1);
255 h = (ipfix_message_header_t *) (udp + 1);
256 s = (ipfix_set_header_t *) (h + 1);
257 t = (ipfix_template_header_t *) (s + 1);
258 first_field = f = (ipfix_field_specifier_t *) (t + 1);
260 ip->ip_version_and_header_length = 0x45;
262 ip->protocol = IP_PROTOCOL_UDP;
263 ip->src_address.as_u32 = exp->src_address.as_u32;
264 ip->dst_address.as_u32 = exp->ipfix_collector.as_u32;
265 udp->src_port = clib_host_to_net_u16 (stream->src_port);
266 udp->dst_port = clib_host_to_net_u16 (collector_port);
267 udp->length = clib_host_to_net_u16 (vec_len (rewrite) - sizeof (*ip));
269 /* FIXUP: message header export_time */
270 /* FIXUP: message header sequence_number */
271 h->domain_id = clib_host_to_net_u32 (stream->domain_id);
273 /* Add TLVs to the template */
274 f = flowprobe_template_common_fields (f);
276 if (flags & FLOW_RECORD_L2)
277 f = flowprobe_template_l2_fields (f);
279 f = flowprobe_template_ip4_fields (f);
281 f = flowprobe_template_ip6_fields (f);
282 if (flags & FLOW_RECORD_L4)
283 f = flowprobe_template_l4_fields (f);
285 /* Back to the template packet... */
286 ip = (ip4_header_t *) & tp->ip4;
287 udp = (udp_header_t *) (ip + 1);
289 ASSERT (f - first_field);
290 /* Field count in this template */
291 t->id_count = ipfix_id_count (fr->template_id, f - first_field);
293 fm->template_size[flags] = (u8 *) f - (u8 *) s;
295 /* set length in octets */
297 ipfix_set_id_length (2 /* set_id */ , (u8 *) f - (u8 *) s);
299 /* message length in octets */
300 h->version_length = version_length ((u8 *) f - (u8 *) h);
302 ip->length = clib_host_to_net_u16 ((u8 *) f - (u8 *) ip);
303 ip->checksum = ip4_header_checksum (ip);
309 flowprobe_template_rewrite_ip6 (ipfix_exporter_t *exp, flow_report_t *fr,
311 ipfix_report_element_t *elts, u32 n_elts,
314 return flowprobe_template_rewrite_inline (exp, fr, collector_port,
319 flowprobe_template_rewrite_ip4 (ipfix_exporter_t *exp, flow_report_t *fr,
321 ipfix_report_element_t *elts, u32 n_elts,
324 return flowprobe_template_rewrite_inline (exp, fr, collector_port,
329 flowprobe_template_rewrite_l2 (ipfix_exporter_t *exp, flow_report_t *fr,
331 ipfix_report_element_t *elts, u32 n_elts,
334 return flowprobe_template_rewrite_inline (exp, fr, collector_port,
339 flowprobe_template_rewrite_l2_ip4 (ipfix_exporter_t *exp, flow_report_t *fr,
341 ipfix_report_element_t *elts, u32 n_elts,
344 return flowprobe_template_rewrite_inline (exp, fr, collector_port,
345 FLOW_VARIANT_L2_IP4);
349 flowprobe_template_rewrite_l2_ip6 (ipfix_exporter_t *exp, flow_report_t *fr,
351 ipfix_report_element_t *elts, u32 n_elts,
354 return flowprobe_template_rewrite_inline (exp, fr, collector_port,
355 FLOW_VARIANT_L2_IP6);
359 * @brief Flush accumulated data
360 * @param frm flow_report_main_t *
361 * @param fr flow_report_t *
362 * @param f vlib_frame_t *
365 * This function must simply return the incoming frame, or no template packets
369 flowprobe_data_callback_ip4 (flow_report_main_t *frm, ipfix_exporter_t *exp,
370 flow_report_t *fr, vlib_frame_t *f, u32 *to_next,
373 flowprobe_flush_callback_ip4 ();
378 flowprobe_data_callback_ip6 (flow_report_main_t *frm, ipfix_exporter_t *exp,
379 flow_report_t *fr, vlib_frame_t *f, u32 *to_next,
382 flowprobe_flush_callback_ip6 ();
387 flowprobe_data_callback_l2 (flow_report_main_t *frm, ipfix_exporter_t *exp,
388 flow_report_t *fr, vlib_frame_t *f, u32 *to_next,
391 flowprobe_flush_callback_l2 ();
396 flowprobe_template_add_del (u32 domain_id, u16 src_port,
397 flowprobe_record_t flags,
398 vnet_flow_data_callback_t * flow_data_callback,
399 vnet_flow_rewrite_callback_t * rewrite_callback,
400 bool is_add, u16 * template_id)
402 ipfix_exporter_t *exp = &flow_report_main.exporters[0];
403 vnet_flow_report_add_del_args_t a = {
404 .rewrite_callback = rewrite_callback,
405 .flow_data_callback = flow_data_callback,
407 .domain_id = domain_id,
408 .src_port = src_port,
409 .opaque.as_uword = flags,
411 return vnet_flow_report_add_del (exp, &a, template_id);
415 flowprobe_expired_timer_callback (u32 * expired_timers)
417 vlib_main_t *vm = vlib_get_main ();
418 flowprobe_main_t *fm = &flowprobe_main;
419 u32 my_cpu_number = vm->thread_index;
423 for (i = 0; i < vec_len (expired_timers); i++)
425 poolindex = expired_timers[i] & 0x7FFFFFFF;
426 vec_add1 (fm->expired_passive_per_worker[my_cpu_number], poolindex);
430 static clib_error_t *
431 flowprobe_create_state_tables (u32 active_timer)
433 flowprobe_main_t *fm = &flowprobe_main;
434 vlib_thread_main_t *tm = &vlib_thread_main;
435 vlib_main_t *vm = vlib_get_main ();
436 clib_error_t *error = 0;
440 /* Decide how many worker threads we have */
441 num_threads = 1 /* main thread */ + tm->n_threads;
443 /* Hash table per worker */
444 fm->ht_log2len = FLOWPROBE_LOG2_HASHSIZE;
446 /* Init per worker flow state and timer wheels */
449 vec_validate (fm->timers_per_worker, num_threads - 1);
450 vec_validate (fm->expired_passive_per_worker, num_threads - 1);
451 vec_validate (fm->hash_per_worker, num_threads - 1);
452 vec_validate (fm->pool_per_worker, num_threads - 1);
454 for (i = 0; i < num_threads; i++)
457 pool_alloc (fm->pool_per_worker[i], 1 << fm->ht_log2len);
458 vec_resize (fm->hash_per_worker[i], 1 << fm->ht_log2len);
459 for (j = 0; j < (1 << fm->ht_log2len); j++)
460 fm->hash_per_worker[i][j] = ~0;
461 fm->timers_per_worker[i] =
462 clib_mem_alloc (sizeof (TWT (tw_timer_wheel)));
463 tw_timer_wheel_init_2t_1w_2048sl (fm->timers_per_worker[i],
464 flowprobe_expired_timer_callback,
471 f64 now = vlib_time_now (vm);
472 vec_validate (fm->stateless_entry, num_threads - 1);
473 for (i = 0; i < num_threads; i++)
474 fm->stateless_entry[i].last_exported = now;
475 fm->disabled = false;
477 fm->initialized = true;
482 validate_feature_on_interface (flowprobe_main_t * fm, u32 sw_if_index,
485 vec_validate_init_empty (fm->flow_per_interface, sw_if_index, ~0);
487 if (fm->flow_per_interface[sw_if_index] == (u8) ~ 0)
489 else if (fm->flow_per_interface[sw_if_index] != which)
496 * @brief configure / deconfigure the IPFIX flow-per-packet
497 * @param fm flowprobe_main_t * fm
498 * @param sw_if_index u32 the desired interface
499 * @param is_add int 1 to enable the feature, 0 to disable it
500 * @returns 0 if successful, non-zero otherwise
504 flowprobe_tx_interface_add_del_feature (flowprobe_main_t * fm,
505 u32 sw_if_index, u8 which, int is_add)
507 vlib_main_t *vm = vlib_get_main ();
510 flowprobe_record_t flags = fm->record;
512 fm->flow_per_interface[sw_if_index] = (is_add) ? which : (u8) ~ 0;
513 fm->template_per_flow[which] += (is_add) ? 1 : -1;
514 if (is_add && fm->template_per_flow[which] > 1)
515 template_id = fm->template_reports[flags];
517 if ((is_add && fm->template_per_flow[which] == 1) ||
518 (!is_add && fm->template_per_flow[which] == 0))
520 if (which == FLOW_VARIANT_L2)
522 if (fm->record & FLOW_RECORD_L2)
524 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
525 flowprobe_data_callback_l2,
526 flowprobe_template_rewrite_l2,
527 is_add, &template_id);
529 if (fm->record & FLOW_RECORD_L3 || fm->record & FLOW_RECORD_L4)
531 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
532 flowprobe_data_callback_l2,
533 flowprobe_template_rewrite_l2_ip4,
534 is_add, &template_id);
535 fm->template_reports[flags | FLOW_RECORD_L2_IP4] =
536 (is_add) ? template_id : 0;
538 flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
539 flowprobe_data_callback_l2,
540 flowprobe_template_rewrite_l2_ip6,
541 is_add, &template_id);
542 fm->template_reports[flags | FLOW_RECORD_L2_IP6] =
543 (is_add) ? template_id : 0;
545 /* Special case L2 */
546 fm->context[FLOW_VARIANT_L2_IP4].flags =
547 flags | FLOW_RECORD_L2_IP4;
548 fm->context[FLOW_VARIANT_L2_IP6].flags =
549 flags | FLOW_RECORD_L2_IP6;
551 fm->template_reports[flags] = template_id;
554 else if (which == FLOW_VARIANT_IP4)
555 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
556 flowprobe_data_callback_ip4,
557 flowprobe_template_rewrite_ip4,
558 is_add, &template_id);
559 else if (which == FLOW_VARIANT_IP6)
560 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
561 flowprobe_data_callback_ip6,
562 flowprobe_template_rewrite_ip6,
563 is_add, &template_id);
565 if (rv && rv != VNET_API_ERROR_VALUE_EXIST)
567 clib_warning ("vnet_flow_report_add_del returned %d", rv);
571 if (which != (u8) ~ 0)
573 fm->context[which].flags = fm->record;
574 fm->template_reports[flags] = (is_add) ? template_id : 0;
577 if (which == FLOW_VARIANT_IP4)
578 vnet_feature_enable_disable ("ip4-output", "flowprobe-ip4",
579 sw_if_index, is_add, 0, 0);
580 else if (which == FLOW_VARIANT_IP6)
581 vnet_feature_enable_disable ("ip6-output", "flowprobe-ip6",
582 sw_if_index, is_add, 0, 0);
583 else if (which == FLOW_VARIANT_L2)
584 vnet_feature_enable_disable ("interface-output", "flowprobe-l2",
585 sw_if_index, is_add, 0, 0);
587 /* Stateful flow collection */
588 if (is_add && !fm->initialized)
590 flowprobe_create_state_tables (fm->active_timer);
591 if (fm->active_timer)
592 vlib_process_signal_event (vm, flowprobe_timer_node.index, 1, 0);
599 * @brief API message handler
600 * @param mp vl_api_flowprobe_tx_interface_add_del_t * mp the api message
602 void vl_api_flowprobe_tx_interface_add_del_t_handler
603 (vl_api_flowprobe_tx_interface_add_del_t * mp)
605 flowprobe_main_t *fm = &flowprobe_main;
606 vl_api_flowprobe_tx_interface_add_del_reply_t *rmp;
607 u32 sw_if_index = ntohl (mp->sw_if_index);
610 VALIDATE_SW_IF_INDEX (mp);
614 clib_warning ("Please specify flowprobe params record first...");
615 rv = VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE;
619 rv = validate_feature_on_interface (fm, sw_if_index, mp->which);
620 if ((rv == 1 && mp->is_add == 1) || rv == 0)
622 rv = VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE;
626 rv = flowprobe_tx_interface_add_del_feature
627 (fm, sw_if_index, mp->which, mp->is_add);
630 BAD_SW_IF_INDEX_LABEL;
632 REPLY_MACRO (VL_API_FLOWPROBE_TX_INTERFACE_ADD_DEL_REPLY);
635 #define vec_neg_search(v,E) \
638 while (_v(i) < vec_len(v) && v[_v(i)] == E) \
642 if (_v(i) == vec_len(v)) \
648 flowprobe_params (flowprobe_main_t * fm, u8 record_l2,
649 u8 record_l3, u8 record_l4,
650 u32 active_timer, u32 passive_timer)
652 flowprobe_record_t flags = 0;
654 if (vec_neg_search (fm->flow_per_interface, (u8) ~ 0) != ~0)
658 flags |= FLOW_RECORD_L2;
660 flags |= FLOW_RECORD_L3;
662 flags |= FLOW_RECORD_L4;
667 * Timers: ~0 is default, 0 is off
670 (active_timer == (u32) ~ 0 ? FLOWPROBE_TIMER_ACTIVE : active_timer);
672 (passive_timer == (u32) ~ 0 ? FLOWPROBE_TIMER_PASSIVE : passive_timer);
678 vl_api_flowprobe_params_t_handler (vl_api_flowprobe_params_t * mp)
680 flowprobe_main_t *fm = &flowprobe_main;
681 vl_api_flowprobe_params_reply_t *rmp;
684 rv = flowprobe_params
686 mp->record_flags & FLOWPROBE_RECORD_FLAG_L2,
687 mp->record_flags & FLOWPROBE_RECORD_FLAG_L3,
688 mp->record_flags & FLOWPROBE_RECORD_FLAG_L4,
689 clib_net_to_host_u32 (mp->active_timer),
690 clib_net_to_host_u32 (mp->passive_timer));
692 REPLY_MACRO (VL_API_FLOWPROBE_PARAMS_REPLY);
696 VLIB_PLUGIN_REGISTER () = {
697 .version = VPP_BUILD_VER,
698 .description = "Flow per Packet",
703 format_flowprobe_entry (u8 * s, va_list * args)
705 flowprobe_entry_t *e = va_arg (*args, flowprobe_entry_t *);
706 s = format (s, " %d/%d", e->key.rx_sw_if_index, e->key.tx_sw_if_index);
708 s = format (s, " %U %U", format_ethernet_address, &e->key.src_mac,
709 format_ethernet_address, &e->key.dst_mac);
710 s = format (s, " %U -> %U",
711 format_ip46_address, &e->key.src_address, IP46_TYPE_ANY,
712 format_ip46_address, &e->key.dst_address, IP46_TYPE_ANY);
713 s = format (s, " %d", e->key.protocol);
714 s = format (s, " %d %d\n", clib_net_to_host_u16 (e->key.src_port),
715 clib_net_to_host_u16 (e->key.dst_port));
721 format_flowprobe_feature (u8 * s, va_list * args)
723 u8 *which = va_arg (*args, u8 *);
724 if (*which == FLOW_VARIANT_IP4)
725 s = format (s, "ip4");
726 else if (*which == FLOW_VARIANT_IP6)
727 s = format (s, "ip6");
728 else if (*which == FLOW_VARIANT_L2)
729 s = format (s, "l2");
735 format_flowprobe_params (u8 * s, va_list * args)
737 flowprobe_record_t flags = va_arg (*args, flowprobe_record_t);
738 u32 active_timer = va_arg (*args, u32);
739 u32 passive_timer = va_arg (*args, u32);
741 if (flags & FLOW_RECORD_L2)
742 s = format (s, " l2");
743 if (flags & FLOW_RECORD_L3)
744 s = format (s, " l3");
745 if (flags & FLOW_RECORD_L4)
746 s = format (s, " l4");
748 if (active_timer != (u32) ~ 0)
749 s = format (s, " active: %d", active_timer);
751 if (passive_timer != (u32) ~ 0)
752 s = format (s, " passive: %d", passive_timer);
757 static clib_error_t *
758 flowprobe_show_table_fn (vlib_main_t * vm,
759 unformat_input_t * input, vlib_cli_command_t * cm)
761 flowprobe_main_t *fm = &flowprobe_main;
763 flowprobe_entry_t *e;
765 vlib_cli_output (vm, "Dumping IPFIX table");
767 for (i = 0; i < vec_len (fm->pool_per_worker); i++)
770 pool_foreach (e, fm->pool_per_worker[i])
772 vlib_cli_output (vm, "%U",
773 format_flowprobe_entry,
782 static clib_error_t *
783 flowprobe_show_stats_fn (vlib_main_t * vm,
784 unformat_input_t * input, vlib_cli_command_t * cm)
786 flowprobe_main_t *fm = &flowprobe_main;
789 vlib_cli_output (vm, "IPFIX table statistics");
790 vlib_cli_output (vm, "Flow entry size: %d\n", sizeof (flowprobe_entry_t));
791 vlib_cli_output (vm, "Flow pool size per thread: %d\n",
792 0x1 << FLOWPROBE_LOG2_HASHSIZE);
794 for (i = 0; i < vec_len (fm->pool_per_worker); i++)
795 vlib_cli_output (vm, "Pool utilisation thread %d is %d%%\n", i,
796 (100 * pool_elts (fm->pool_per_worker[i])) /
797 (0x1 << FLOWPROBE_LOG2_HASHSIZE));
801 static clib_error_t *
802 flowprobe_tx_interface_add_del_feature_command_fn (vlib_main_t * vm,
803 unformat_input_t * input,
804 vlib_cli_command_t * cmd)
806 flowprobe_main_t *fm = &flowprobe_main;
807 u32 sw_if_index = ~0;
809 u8 which = FLOW_VARIANT_IP4;
812 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
814 if (unformat (input, "disable"))
816 else if (unformat (input, "%U", unformat_vnet_sw_interface,
817 fm->vnet_main, &sw_if_index));
818 else if (unformat (input, "ip4"))
819 which = FLOW_VARIANT_IP4;
820 else if (unformat (input, "ip6"))
821 which = FLOW_VARIANT_IP6;
822 else if (unformat (input, "l2"))
823 which = FLOW_VARIANT_L2;
829 return clib_error_return (0,
830 "Please specify flowprobe params record first...");
832 if (sw_if_index == ~0)
833 return clib_error_return (0, "Please specify an interface...");
835 rv = validate_feature_on_interface (fm, sw_if_index, which);
839 return clib_error_return (0,
840 "Datapath is already enabled for given interface...");
843 return clib_error_return (0,
844 "Interface has enable different datapath ...");
847 flowprobe_tx_interface_add_del_feature (fm, sw_if_index, which, is_add);
853 case VNET_API_ERROR_INVALID_SW_IF_INDEX:
854 return clib_error_return
855 (0, "Invalid interface, only works on physical ports");
858 case VNET_API_ERROR_UNIMPLEMENTED:
859 return clib_error_return (0, "ip6 not supported");
863 return clib_error_return (0, "flowprobe_enable_disable returned %d",
869 static clib_error_t *
870 flowprobe_show_feature_command_fn (vlib_main_t * vm,
871 unformat_input_t * input,
872 vlib_cli_command_t * cmd)
874 flowprobe_main_t *fm = &flowprobe_main;
878 vec_foreach (which, fm->flow_per_interface)
880 if (*which == (u8) ~ 0)
883 sw_if_index = which - fm->flow_per_interface;
884 vlib_cli_output (vm, " %U %U", format_vnet_sw_if_index_name,
885 vnet_get_main (), sw_if_index, format_flowprobe_feature,
891 static clib_error_t *
892 flowprobe_params_command_fn (vlib_main_t * vm,
893 unformat_input_t * input,
894 vlib_cli_command_t * cmd)
896 flowprobe_main_t *fm = &flowprobe_main;
897 bool record_l2 = false, record_l3 = false, record_l4 = false;
898 u32 active_timer = ~0;
899 u32 passive_timer = ~0;
901 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
903 if (unformat (input, "active %d", &active_timer))
905 else if (unformat (input, "passive %d", &passive_timer))
907 else if (unformat (input, "record"))
908 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
910 if (unformat (input, "l2"))
912 else if (unformat (input, "l3"))
914 else if (unformat (input, "l4"))
923 if (passive_timer > 0 && active_timer > passive_timer)
924 return clib_error_return (0,
925 "Passive timer has to be greater than active one...");
927 if (flowprobe_params (fm, record_l2, record_l3, record_l4,
928 active_timer, passive_timer))
929 return clib_error_return (0,
930 "Couldn't change flowperpacket params when feature is enabled on some interface ...");
934 static clib_error_t *
935 flowprobe_show_params_command_fn (vlib_main_t * vm,
936 unformat_input_t * input,
937 vlib_cli_command_t * cmd)
939 flowprobe_main_t *fm = &flowprobe_main;
940 flowprobe_record_t flags = fm->record;
941 u32 active_timer = fm->active_timer;
942 u32 passive_timer = fm->passive_timer;
944 vlib_cli_output (vm, "%U", format_flowprobe_params, flags, active_timer,
950 * '<em>flowprobe feature add-del</em>' commands to enable/disable
951 * per-packet IPFIX flow record generation on an interface
955 * To enable per-packet IPFIX flow-record generation on an interface:
956 * @cliexcmd{flowprobe feature add-del GigabitEthernet2/0/0}
958 * To disable per-packet IPFIX flow-record generation on an interface:
959 * @cliexcmd{flowprobe feature add-del GigabitEthernet2/0/0 disable}
964 VLIB_CLI_COMMAND (flowprobe_enable_disable_command, static) = {
965 .path = "flowprobe feature add-del",
967 "flowprobe feature add-del <interface-name> <l2|ip4|ip6> disable",
968 .function = flowprobe_tx_interface_add_del_feature_command_fn,
970 VLIB_CLI_COMMAND (flowprobe_params_command, static) = {
971 .path = "flowprobe params",
973 "flowprobe params record <[l2] [l3] [l4]> [active <timer> passive <timer>]",
974 .function = flowprobe_params_command_fn,
977 VLIB_CLI_COMMAND (flowprobe_show_feature_command, static) = {
978 .path = "show flowprobe feature",
980 "show flowprobe feature",
981 .function = flowprobe_show_feature_command_fn,
983 VLIB_CLI_COMMAND (flowprobe_show_params_command, static) = {
984 .path = "show flowprobe params",
986 "show flowprobe params",
987 .function = flowprobe_show_params_command_fn,
989 VLIB_CLI_COMMAND (flowprobe_show_table_command, static) = {
990 .path = "show flowprobe table",
991 .short_help = "show flowprobe table",
992 .function = flowprobe_show_table_fn,
994 VLIB_CLI_COMMAND (flowprobe_show_stats_command, static) = {
995 .path = "show flowprobe statistics",
996 .short_help = "show flowprobe statistics",
997 .function = flowprobe_show_stats_fn,
1002 * Main-core process, sending an interrupt to the per worker input
1003 * process that spins the per worker timer wheel.
1006 timer_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1008 uword *event_data = 0;
1009 vlib_main_t **worker_vms = 0, *worker_vm;
1010 flowprobe_main_t *fm = &flowprobe_main;
1012 /* Wait for Godot... */
1013 vlib_process_wait_for_event_or_clock (vm, 1e9);
1014 uword event_type = vlib_process_get_events (vm, &event_data);
1015 if (event_type != 1)
1016 clib_warning ("bogus kickoff event received, %d", event_type);
1017 vec_reset_length (event_data);
1020 if (vlib_get_n_threads () == 0)
1021 vec_add1 (worker_vms, vm);
1024 for (i = 0; i < vlib_get_n_threads (); i++)
1026 worker_vm = vlib_get_main_by_index (i);
1028 vec_add1 (worker_vms, worker_vm);
1031 f64 sleep_duration = 0.1;
1035 /* Send an interrupt to each timer input node */
1036 sleep_duration = 0.1;
1037 for (i = 0; i < vec_len (worker_vms); i++)
1039 worker_vm = worker_vms[i];
1042 vlib_node_set_interrupt_pending (worker_vm,
1043 flowprobe_walker_node.index);
1045 (fm->expired_passive_per_worker[i] > 0) ? 1e-4 : 0.1;
1048 vlib_process_suspend (vm, sleep_duration);
1050 return 0; /* or not */
1054 VLIB_REGISTER_NODE (flowprobe_timer_node,static) = {
1055 .function = timer_process,
1056 .name = "flowprobe-timer-process",
1057 .type = VLIB_NODE_TYPE_PROCESS,
1061 #include <flowprobe/flowprobe.api.c>
1064 * @brief Set up the API message handling tables
1065 * @param vm vlib_main_t * vlib main data structure pointer
1066 * @returns 0 to indicate all is well, or a clib_error_t
1068 static clib_error_t *
1069 flowprobe_init (vlib_main_t * vm)
1071 flowprobe_main_t *fm = &flowprobe_main;
1072 vlib_thread_main_t *tm = &vlib_thread_main;
1073 clib_error_t *error = 0;
1077 fm->vnet_main = vnet_get_main ();
1079 /* Ask for a correctly-sized block of API message decode slots */
1080 fm->msg_id_base = setup_message_id_table ();
1082 /* Set up time reference pair */
1083 fm->vlib_time_0 = vlib_time_now (vm);
1084 fm->nanosecond_time_0 = unix_time_now_nsec ();
1086 clib_memset (fm->template_reports, 0, sizeof (fm->template_reports));
1087 clib_memset (fm->template_size, 0, sizeof (fm->template_size));
1088 clib_memset (fm->template_per_flow, 0, sizeof (fm->template_per_flow));
1090 /* Decide how many worker threads we have */
1091 num_threads = 1 /* main thread */ + tm->n_threads;
1093 /* Allocate per worker thread vectors per flavour */
1094 for (i = 0; i < FLOW_N_VARIANTS; i++)
1096 vec_validate (fm->context[i].buffers_per_worker, num_threads - 1);
1097 vec_validate (fm->context[i].frames_per_worker, num_threads - 1);
1098 vec_validate (fm->context[i].next_record_offset_per_worker,
1102 fm->active_timer = FLOWPROBE_TIMER_ACTIVE;
1103 fm->passive_timer = FLOWPROBE_TIMER_PASSIVE;
1108 VLIB_INIT_FUNCTION (flowprobe_init);
1111 * fd.io coding-style-patch-verification: ON
1114 * eval: (c-set-style "gnu")