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 <flowprobe/flowprobe.h>
31 #include <vlibapi/api.h>
32 #include <vlibmemory/api.h>
34 /* define message IDs */
35 #include <flowprobe/flowprobe_msg_enum.h>
37 /* define message structures */
39 #include <flowprobe/flowprobe_all_api_h.h>
42 /* define generated endian-swappers */
44 #include <flowprobe/flowprobe_all_api_h.h>
47 /* instantiate all the print functions we know about */
48 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
50 #include <flowprobe/flowprobe_all_api_h.h>
53 flowprobe_main_t flowprobe_main;
54 vlib_node_registration_t flowprobe_walker_node;
55 static vlib_node_registration_t flowprobe_timer_node;
56 uword flowprobe_walker_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
59 /* Get the API version number */
60 #define vl_api_version(n,v) static u32 api_version=(v);
61 #include <flowprobe/flowprobe_all_api_h.h>
64 #define REPLY_MSG_ID_BASE fm->msg_id_base
65 #include <vlibapi/api_helper_macros.h>
67 /* Define the per-interface configurable features */
69 VNET_FEATURE_INIT (flow_perpacket_ip4, static) =
71 .arc_name = "ip4-output",
72 .node_name = "flowprobe-ip4",
73 .runs_before = VNET_FEATURES ("interface-output"),
76 VNET_FEATURE_INIT (flow_perpacket_ip6, static) =
78 .arc_name = "ip6-output",
79 .node_name = "flowprobe-ip6",
80 .runs_before = VNET_FEATURES ("interface-output"),
83 VNET_FEATURE_INIT (flow_perpacket_l2, static) =
85 .arc_name = "interface-output",
86 .node_name = "flowprobe-l2",
87 .runs_before = VNET_FEATURES ("interface-tx"),
91 /* Macro to finish up custom dump fns */
94 vl_print (handle, (char *)s); \
98 static inline ipfix_field_specifier_t *
99 flowprobe_template_ip4_fields (ipfix_field_specifier_t * f)
101 #define flowprobe_template_ip4_field_count() 4
102 /* sourceIpv4Address, TLV type 8, u32 */
103 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
104 sourceIPv4Address, 4);
106 /* destinationIPv4Address, TLV type 12, u32 */
107 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
108 destinationIPv4Address, 4);
110 /* protocolIdentifier, TLV type 4, u8 */
111 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
112 protocolIdentifier, 1);
114 /* octetDeltaCount, TLV type 1, u64 */
115 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
121 static inline ipfix_field_specifier_t *
122 flowprobe_template_ip6_fields (ipfix_field_specifier_t * f)
124 #define flowprobe_template_ip6_field_count() 4
125 /* sourceIpv6Address, TLV type 27, 16 octets */
126 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
127 sourceIPv6Address, 16);
129 /* destinationIPv6Address, TLV type 28, 16 octets */
130 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
131 destinationIPv6Address, 16);
133 /* protocolIdentifier, TLV type 4, u8 */
134 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
135 protocolIdentifier, 1);
137 /* octetDeltaCount, TLV type 1, u64 */
138 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
144 static inline ipfix_field_specifier_t *
145 flowprobe_template_l2_fields (ipfix_field_specifier_t * f)
147 #define flowprobe_template_l2_field_count() 3
148 /* sourceMacAddress, TLV type 56, u8[6] we hope */
149 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
150 sourceMacAddress, 6);
152 /* destinationMacAddress, TLV type 80, u8[6] we hope */
153 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
154 destinationMacAddress, 6);
156 /* ethernetType, TLV type 256, u16 */
157 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
163 static inline ipfix_field_specifier_t *
164 flowprobe_template_common_fields (ipfix_field_specifier_t * f)
166 #define flowprobe_template_common_field_count() 5
167 /* ingressInterface, TLV type 10, u32 */
168 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
169 ingressInterface, 4);
172 /* egressInterface, TLV type 14, u32 */
173 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
177 /* packetDeltaCount, TLV type 2, u64 */
178 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
179 packetDeltaCount, 8);
182 /* flowStartNanoseconds, TLV type 156, u64 */
183 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
184 flowStartNanoseconds, 8);
187 /* flowEndNanoseconds, TLV type 157, u64 */
188 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
189 flowEndNanoseconds, 8);
195 static inline ipfix_field_specifier_t *
196 flowprobe_template_l4_fields (ipfix_field_specifier_t * f)
198 #define flowprobe_template_l4_field_count() 3
199 /* sourceTransportPort, TLV type 7, u16 */
200 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
201 sourceTransportPort, 2);
203 /* destinationTransportPort, TLV type 11, u16 */
204 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
205 destinationTransportPort, 2);
207 /* tcpControlBits, TLV type 6, u16 */
208 f->e_id_length = ipfix_e_id_length (0 /* enterprise */ ,
216 * @brief Create an IPFIX template packet rewrite string
217 * @param frm flow_report_main_t *
218 * @param fr flow_report_t *
219 * @param collector_address ip4_address_t * the IPFIX collector address
220 * @param src_address ip4_address_t * the source address we should use
221 * @param collector_port u16 the collector port we should use, host byte order
222 * @returns u8 * vector containing the indicated IPFIX template packet
225 flowprobe_template_rewrite_inline (flow_report_main_t * frm,
227 ip4_address_t * collector_address,
228 ip4_address_t * src_address,
230 flowprobe_variant_t which)
234 ipfix_message_header_t *h;
235 ipfix_set_header_t *s;
236 ipfix_template_header_t *t;
237 ipfix_field_specifier_t *f;
238 ipfix_field_specifier_t *first_field;
240 ip4_ipfix_template_packet_t *tp;
242 flow_report_stream_t *stream;
243 flowprobe_main_t *fm = &flowprobe_main;
244 flowprobe_record_t flags = fr->opaque.as_uword;
245 bool collect_ip4 = false, collect_ip6 = false;
247 stream = &frm->streams[fr->stream_index];
249 if (flags & FLOW_RECORD_L3)
251 collect_ip4 = which == FLOW_VARIANT_L2_IP4 || which == FLOW_VARIANT_IP4;
252 collect_ip6 = which == FLOW_VARIANT_L2_IP6 || which == FLOW_VARIANT_IP6;
253 if (which == FLOW_VARIANT_L2_IP4)
254 flags |= FLOW_RECORD_L2_IP4;
255 if (which == FLOW_VARIANT_L2_IP6)
256 flags |= FLOW_RECORD_L2_IP6;
259 field_count += flowprobe_template_common_field_count ();
260 if (flags & FLOW_RECORD_L2)
261 field_count += flowprobe_template_l2_field_count ();
263 field_count += flowprobe_template_ip4_field_count ();
265 field_count += flowprobe_template_ip6_field_count ();
266 if (flags & FLOW_RECORD_L4)
267 field_count += flowprobe_template_l4_field_count ();
269 /* allocate rewrite space */
271 (rewrite, sizeof (ip4_ipfix_template_packet_t)
272 + field_count * sizeof (ipfix_field_specifier_t) - 1,
273 CLIB_CACHE_LINE_BYTES);
275 tp = (ip4_ipfix_template_packet_t *) rewrite;
276 ip = (ip4_header_t *) & tp->ip4;
277 udp = (udp_header_t *) (ip + 1);
278 h = (ipfix_message_header_t *) (udp + 1);
279 s = (ipfix_set_header_t *) (h + 1);
280 t = (ipfix_template_header_t *) (s + 1);
281 first_field = f = (ipfix_field_specifier_t *) (t + 1);
283 ip->ip_version_and_header_length = 0x45;
285 ip->protocol = IP_PROTOCOL_UDP;
286 ip->src_address.as_u32 = src_address->as_u32;
287 ip->dst_address.as_u32 = collector_address->as_u32;
288 udp->src_port = clib_host_to_net_u16 (stream->src_port);
289 udp->dst_port = clib_host_to_net_u16 (collector_port);
290 udp->length = clib_host_to_net_u16 (vec_len (rewrite) - sizeof (*ip));
292 /* FIXUP: message header export_time */
293 /* FIXUP: message header sequence_number */
294 h->domain_id = clib_host_to_net_u32 (stream->domain_id);
296 /* Add TLVs to the template */
297 f = flowprobe_template_common_fields (f);
299 if (flags & FLOW_RECORD_L2)
300 f = flowprobe_template_l2_fields (f);
302 f = flowprobe_template_ip4_fields (f);
304 f = flowprobe_template_ip6_fields (f);
305 if (flags & FLOW_RECORD_L4)
306 f = flowprobe_template_l4_fields (f);
308 /* Back to the template packet... */
309 ip = (ip4_header_t *) & tp->ip4;
310 udp = (udp_header_t *) (ip + 1);
312 ASSERT (f - first_field);
313 /* Field count in this template */
314 t->id_count = ipfix_id_count (fr->template_id, f - first_field);
316 fm->template_size[flags] = (u8 *) f - (u8 *) s;
318 /* set length in octets */
320 ipfix_set_id_length (2 /* set_id */ , (u8 *) f - (u8 *) s);
322 /* message length in octets */
323 h->version_length = version_length ((u8 *) f - (u8 *) h);
325 ip->length = clib_host_to_net_u16 ((u8 *) f - (u8 *) ip);
326 ip->checksum = ip4_header_checksum (ip);
332 flowprobe_template_rewrite_ip6 (flow_report_main_t * frm,
334 ip4_address_t * collector_address,
335 ip4_address_t * src_address,
337 ipfix_report_element_t * elts,
338 u32 n_elts, u32 * stream_index)
340 return flowprobe_template_rewrite_inline
341 (frm, fr, collector_address, src_address, collector_port,
346 flowprobe_template_rewrite_ip4 (flow_report_main_t * frm,
348 ip4_address_t * collector_address,
349 ip4_address_t * src_address,
351 ipfix_report_element_t * elts,
352 u32 n_elts, u32 * stream_index)
354 return flowprobe_template_rewrite_inline
355 (frm, fr, collector_address, src_address, collector_port,
360 flowprobe_template_rewrite_l2 (flow_report_main_t * frm,
362 ip4_address_t * collector_address,
363 ip4_address_t * src_address,
365 ipfix_report_element_t * elts,
366 u32 n_elts, u32 * stream_index)
368 return flowprobe_template_rewrite_inline
369 (frm, fr, collector_address, src_address, collector_port,
374 flowprobe_template_rewrite_l2_ip4 (flow_report_main_t * frm,
376 ip4_address_t * collector_address,
377 ip4_address_t * src_address,
379 ipfix_report_element_t * elts,
380 u32 n_elts, u32 * stream_index)
382 return flowprobe_template_rewrite_inline
383 (frm, fr, collector_address, src_address, collector_port,
384 FLOW_VARIANT_L2_IP4);
388 flowprobe_template_rewrite_l2_ip6 (flow_report_main_t * frm,
390 ip4_address_t * collector_address,
391 ip4_address_t * src_address,
393 ipfix_report_element_t * elts,
394 u32 n_elts, u32 * stream_index)
396 return flowprobe_template_rewrite_inline
397 (frm, fr, collector_address, src_address, collector_port,
398 FLOW_VARIANT_L2_IP6);
402 * @brief Flush accumulated data
403 * @param frm flow_report_main_t *
404 * @param fr flow_report_t *
405 * @param f vlib_frame_t *
408 * This function must simply return the incoming frame, or no template packets
412 flowprobe_data_callback_ip4 (flow_report_main_t * frm,
414 vlib_frame_t * f, u32 * to_next, u32 node_index)
416 flowprobe_flush_callback_ip4 ();
421 flowprobe_data_callback_ip6 (flow_report_main_t * frm,
423 vlib_frame_t * f, u32 * to_next, u32 node_index)
425 flowprobe_flush_callback_ip6 ();
430 flowprobe_data_callback_l2 (flow_report_main_t * frm,
432 vlib_frame_t * f, u32 * to_next, u32 node_index)
434 flowprobe_flush_callback_l2 ();
439 flowprobe_template_add_del (u32 domain_id, u16 src_port,
440 flowprobe_record_t flags,
441 vnet_flow_data_callback_t * flow_data_callback,
442 vnet_flow_rewrite_callback_t * rewrite_callback,
443 bool is_add, u16 * template_id)
445 flow_report_main_t *frm = &flow_report_main;
446 vnet_flow_report_add_del_args_t a = {
447 .rewrite_callback = rewrite_callback,
448 .flow_data_callback = flow_data_callback,
450 .domain_id = domain_id,
451 .src_port = src_port,
452 .opaque.as_uword = flags,
454 return vnet_flow_report_add_del (frm, &a, template_id);
458 flowprobe_expired_timer_callback (u32 * expired_timers)
460 vlib_main_t *vm = vlib_get_main ();
461 flowprobe_main_t *fm = &flowprobe_main;
462 u32 my_cpu_number = vm->thread_index;
466 for (i = 0; i < vec_len (expired_timers); i++)
468 poolindex = expired_timers[i] & 0x7FFFFFFF;
469 vec_add1 (fm->expired_passive_per_worker[my_cpu_number], poolindex);
473 static clib_error_t *
474 flowprobe_create_state_tables (u32 active_timer)
476 flowprobe_main_t *fm = &flowprobe_main;
477 vlib_thread_main_t *tm = &vlib_thread_main;
478 vlib_main_t *vm = vlib_get_main ();
479 clib_error_t *error = 0;
483 /* Decide how many worker threads we have */
484 num_threads = 1 /* main thread */ + tm->n_threads;
486 /* Hash table per worker */
487 fm->ht_log2len = FLOWPROBE_LOG2_HASHSIZE;
489 /* Init per worker flow state and timer wheels */
492 vec_validate (fm->timers_per_worker, num_threads - 1);
493 vec_validate (fm->expired_passive_per_worker, num_threads - 1);
494 vec_validate (fm->hash_per_worker, num_threads - 1);
495 vec_validate (fm->pool_per_worker, num_threads - 1);
497 for (i = 0; i < num_threads; i++)
500 pool_alloc (fm->pool_per_worker[i], 1 << fm->ht_log2len);
501 vec_resize (fm->hash_per_worker[i], 1 << fm->ht_log2len);
502 for (j = 0; j < (1 << fm->ht_log2len); j++)
503 fm->hash_per_worker[i][j] = ~0;
504 fm->timers_per_worker[i] =
505 clib_mem_alloc (sizeof (TWT (tw_timer_wheel)));
506 tw_timer_wheel_init_2t_1w_2048sl (fm->timers_per_worker[i],
507 flowprobe_expired_timer_callback,
514 f64 now = vlib_time_now (vm);
515 vec_validate (fm->stateless_entry, num_threads - 1);
516 for (i = 0; i < num_threads; i++)
517 fm->stateless_entry[i].last_exported = now;
518 fm->disabled = false;
520 fm->initialized = true;
525 validate_feature_on_interface (flowprobe_main_t * fm, u32 sw_if_index,
528 vec_validate_init_empty (fm->flow_per_interface, sw_if_index, ~0);
530 if (fm->flow_per_interface[sw_if_index] == (u8) ~ 0)
532 else if (fm->flow_per_interface[sw_if_index] != which)
539 * @brief configure / deconfigure the IPFIX flow-per-packet
540 * @param fm flowprobe_main_t * fm
541 * @param sw_if_index u32 the desired interface
542 * @param is_add int 1 to enable the feature, 0 to disable it
543 * @returns 0 if successful, non-zero otherwise
547 flowprobe_tx_interface_add_del_feature (flowprobe_main_t * fm,
548 u32 sw_if_index, u8 which, int is_add)
550 vlib_main_t *vm = vlib_get_main ();
553 flowprobe_record_t flags = fm->record;
555 fm->flow_per_interface[sw_if_index] = (is_add) ? which : (u8) ~ 0;
556 fm->template_per_flow[which] += (is_add) ? 1 : -1;
557 if (is_add && fm->template_per_flow[which] > 1)
558 template_id = fm->template_reports[flags];
560 if ((is_add && fm->template_per_flow[which] == 1) ||
561 (!is_add && fm->template_per_flow[which] == 0))
563 if (which == FLOW_VARIANT_L2)
565 if (fm->record & FLOW_RECORD_L2)
567 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
568 flowprobe_data_callback_l2,
569 flowprobe_template_rewrite_l2,
570 is_add, &template_id);
572 if (fm->record & FLOW_RECORD_L3 || fm->record & FLOW_RECORD_L4)
574 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
575 flowprobe_data_callback_l2,
576 flowprobe_template_rewrite_l2_ip4,
577 is_add, &template_id);
578 fm->template_reports[flags | FLOW_RECORD_L2_IP4] =
579 (is_add) ? template_id : 0;
581 flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
582 flowprobe_data_callback_l2,
583 flowprobe_template_rewrite_l2_ip6,
584 is_add, &template_id);
585 fm->template_reports[flags | FLOW_RECORD_L2_IP6] =
586 (is_add) ? template_id : 0;
588 /* Special case L2 */
589 fm->context[FLOW_VARIANT_L2_IP4].flags =
590 flags | FLOW_RECORD_L2_IP4;
591 fm->context[FLOW_VARIANT_L2_IP6].flags =
592 flags | FLOW_RECORD_L2_IP6;
594 fm->template_reports[flags] = template_id;
597 else if (which == FLOW_VARIANT_IP4)
598 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
599 flowprobe_data_callback_ip4,
600 flowprobe_template_rewrite_ip4,
601 is_add, &template_id);
602 else if (which == FLOW_VARIANT_IP6)
603 rv = flowprobe_template_add_del (1, UDP_DST_PORT_ipfix, flags,
604 flowprobe_data_callback_ip6,
605 flowprobe_template_rewrite_ip6,
606 is_add, &template_id);
608 if (rv && rv != VNET_API_ERROR_VALUE_EXIST)
610 clib_warning ("vnet_flow_report_add_del returned %d", rv);
614 if (which != (u8) ~ 0)
616 fm->context[which].flags = fm->record;
617 fm->template_reports[flags] = (is_add) ? template_id : 0;
620 if (which == FLOW_VARIANT_IP4)
621 vnet_feature_enable_disable ("ip4-output", "flowprobe-ip4",
622 sw_if_index, is_add, 0, 0);
623 else if (which == FLOW_VARIANT_IP6)
624 vnet_feature_enable_disable ("ip6-output", "flowprobe-ip6",
625 sw_if_index, is_add, 0, 0);
626 else if (which == FLOW_VARIANT_L2)
627 vnet_feature_enable_disable ("interface-output", "flowprobe-l2",
628 sw_if_index, is_add, 0, 0);
630 /* Stateful flow collection */
631 if (is_add && !fm->initialized)
633 flowprobe_create_state_tables (fm->active_timer);
634 if (fm->active_timer)
635 vlib_process_signal_event (vm, flowprobe_timer_node.index, 1, 0);
642 * @brief API message handler
643 * @param mp vl_api_flowprobe_tx_interface_add_del_t * mp the api message
645 void vl_api_flowprobe_tx_interface_add_del_t_handler
646 (vl_api_flowprobe_tx_interface_add_del_t * mp)
648 flowprobe_main_t *fm = &flowprobe_main;
649 vl_api_flowprobe_tx_interface_add_del_reply_t *rmp;
650 u32 sw_if_index = ntohl (mp->sw_if_index);
653 VALIDATE_SW_IF_INDEX (mp);
655 if (mp->which != FLOW_VARIANT_IP4 && mp->which != FLOW_VARIANT_L2
656 && mp->which != FLOW_VARIANT_IP6)
658 rv = VNET_API_ERROR_UNIMPLEMENTED;
664 clib_warning ("Please specify flowprobe params record first...");
665 rv = VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE;
669 rv = validate_feature_on_interface (fm, sw_if_index, mp->which);
670 if ((rv == 1 && mp->is_add == 1) || rv == 0)
672 rv = VNET_API_ERROR_CANNOT_ENABLE_DISABLE_FEATURE;
676 rv = flowprobe_tx_interface_add_del_feature
677 (fm, sw_if_index, mp->which, mp->is_add);
680 BAD_SW_IF_INDEX_LABEL;
682 REPLY_MACRO (VL_API_FLOWPROBE_TX_INTERFACE_ADD_DEL_REPLY);
686 * @brief API message custom-dump function
687 * @param mp vl_api_flowprobe_tx_interface_add_del_t * mp the api message
688 * @param handle void * print function handle
689 * @returns u8 * output string
691 static void *vl_api_flowprobe_tx_interface_add_del_t_print
692 (vl_api_flowprobe_tx_interface_add_del_t * mp, void *handle)
696 s = format (0, "SCRIPT: flowprobe_tx_interface_add_del ");
697 s = format (s, "sw_if_index %d is_add %d which %d ",
698 clib_host_to_net_u32 (mp->sw_if_index),
699 (int) mp->is_add, (int) mp->which);
703 #define vec_neg_search(v,E) \
706 while (_v(i) < vec_len(v) && v[_v(i)] == E) \
710 if (_v(i) == vec_len(v)) \
716 flowprobe_params (flowprobe_main_t * fm, u8 record_l2,
717 u8 record_l3, u8 record_l4,
718 u32 active_timer, u32 passive_timer)
720 flowprobe_record_t flags = 0;
722 if (vec_neg_search (fm->flow_per_interface, (u8) ~ 0) != ~0)
726 flags |= FLOW_RECORD_L2;
728 flags |= FLOW_RECORD_L3;
730 flags |= FLOW_RECORD_L4;
735 * Timers: ~0 is default, 0 is off
738 (active_timer == (u32) ~ 0 ? FLOWPROBE_TIMER_ACTIVE : active_timer);
740 (passive_timer == (u32) ~ 0 ? FLOWPROBE_TIMER_PASSIVE : passive_timer);
746 vl_api_flowprobe_params_t_handler (vl_api_flowprobe_params_t * mp)
748 flowprobe_main_t *fm = &flowprobe_main;
749 vl_api_flowprobe_params_reply_t *rmp;
752 rv = flowprobe_params
753 (fm, mp->record_l2, mp->record_l3, mp->record_l4,
754 clib_net_to_host_u32 (mp->active_timer),
755 clib_net_to_host_u32 (mp->passive_timer));
757 REPLY_MACRO (VL_API_FLOWPROBE_PARAMS_REPLY);
760 /* List of message types that this plugin understands */
761 #define foreach_flowprobe_plugin_api_msg \
762 _(FLOWPROBE_TX_INTERFACE_ADD_DEL, flowprobe_tx_interface_add_del) \
763 _(FLOWPROBE_PARAMS, flowprobe_params)
766 VLIB_PLUGIN_REGISTER () = {
767 .version = VPP_BUILD_VER,
768 .description = "Flow per Packet",
773 format_flowprobe_entry (u8 * s, va_list * args)
775 flowprobe_entry_t *e = va_arg (*args, flowprobe_entry_t *);
776 s = format (s, " %d/%d", e->key.rx_sw_if_index, e->key.tx_sw_if_index);
778 s = format (s, " %U %U", format_ethernet_address, &e->key.src_mac,
779 format_ethernet_address, &e->key.dst_mac);
780 s = format (s, " %U -> %U",
781 format_ip46_address, &e->key.src_address, IP46_TYPE_ANY,
782 format_ip46_address, &e->key.dst_address, IP46_TYPE_ANY);
783 s = format (s, " %d", e->key.protocol);
784 s = format (s, " %d %d\n", clib_net_to_host_u16 (e->key.src_port),
785 clib_net_to_host_u16 (e->key.dst_port));
790 static clib_error_t *
791 flowprobe_show_table_fn (vlib_main_t * vm,
792 unformat_input_t * input, vlib_cli_command_t * cm)
794 flowprobe_main_t *fm = &flowprobe_main;
796 flowprobe_entry_t *e;
798 vlib_cli_output (vm, "Dumping IPFIX table");
800 for (i = 0; i < vec_len (fm->pool_per_worker); i++)
803 pool_foreach (e, fm->pool_per_worker[i], (
805 vlib_cli_output (vm, "%U",
806 format_flowprobe_entry,
815 static clib_error_t *
816 flowprobe_show_stats_fn (vlib_main_t * vm,
817 unformat_input_t * input, vlib_cli_command_t * cm)
819 flowprobe_main_t *fm = &flowprobe_main;
822 vlib_cli_output (vm, "IPFIX table statistics");
823 vlib_cli_output (vm, "Flow entry size: %d\n", sizeof (flowprobe_entry_t));
824 vlib_cli_output (vm, "Flow pool size per thread: %d\n",
825 0x1 << FLOWPROBE_LOG2_HASHSIZE);
827 for (i = 0; i < vec_len (fm->pool_per_worker); i++)
828 vlib_cli_output (vm, "Pool utilisation thread %d is %d%%\n", i,
829 (100 * pool_elts (fm->pool_per_worker[i])) /
830 (0x1 << FLOWPROBE_LOG2_HASHSIZE));
834 static clib_error_t *
835 flowprobe_tx_interface_add_del_feature_command_fn (vlib_main_t * vm,
836 unformat_input_t * input,
837 vlib_cli_command_t * cmd)
839 flowprobe_main_t *fm = &flowprobe_main;
840 u32 sw_if_index = ~0;
842 u8 which = FLOW_VARIANT_IP4;
845 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
847 if (unformat (input, "disable"))
849 else if (unformat (input, "%U", unformat_vnet_sw_interface,
850 fm->vnet_main, &sw_if_index));
851 else if (unformat (input, "ip4"))
852 which = FLOW_VARIANT_IP4;
853 else if (unformat (input, "ip6"))
854 which = FLOW_VARIANT_IP6;
855 else if (unformat (input, "l2"))
856 which = FLOW_VARIANT_L2;
862 return clib_error_return (0,
863 "Please specify flowprobe params record first...");
865 if (sw_if_index == ~0)
866 return clib_error_return (0, "Please specify an interface...");
868 rv = validate_feature_on_interface (fm, sw_if_index, which);
872 return clib_error_return (0,
873 "Datapath is already enabled for given interface...");
876 return clib_error_return (0,
877 "Interface has enable different datapath ...");
880 flowprobe_tx_interface_add_del_feature (fm, sw_if_index, which, is_add);
886 case VNET_API_ERROR_INVALID_SW_IF_INDEX:
887 return clib_error_return
888 (0, "Invalid interface, only works on physical ports");
891 case VNET_API_ERROR_UNIMPLEMENTED:
892 return clib_error_return (0, "ip6 not supported");
896 return clib_error_return (0, "flowprobe_enable_disable returned %d",
902 static clib_error_t *
903 flowprobe_params_command_fn (vlib_main_t * vm,
904 unformat_input_t * input,
905 vlib_cli_command_t * cmd)
907 flowprobe_main_t *fm = &flowprobe_main;
908 bool record_l2 = false, record_l3 = false, record_l4 = false;
909 u32 active_timer = ~0;
910 u32 passive_timer = ~0;
912 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
914 if (unformat (input, "active %d", &active_timer))
916 else if (unformat (input, "passive %d", &passive_timer))
918 else if (unformat (input, "record"))
919 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
921 if (unformat (input, "l2"))
923 else if (unformat (input, "l3"))
925 else if (unformat (input, "l4"))
934 if (passive_timer > 0 && active_timer > passive_timer)
935 return clib_error_return (0,
936 "Passive timer has to be greater than active one...");
938 if (flowprobe_params (fm, record_l2, record_l3, record_l4,
939 active_timer, passive_timer))
940 return clib_error_return (0,
941 "Couldn't change flowperpacket params when feature is enabled on some interface ...");
946 * '<em>flowprobe feature add-del</em>' commands to enable/disable
947 * per-packet IPFIX flow record generation on an interface
951 * To enable per-packet IPFIX flow-record generation on an interface:
952 * @cliexcmd{flowprobe feature add-del GigabitEthernet2/0/0}
954 * To disable per-packet IPFIX flow-record generation on an interface:
955 * @cliexcmd{flowprobe feature add-del GigabitEthernet2/0/0 disable}
960 VLIB_CLI_COMMAND (flowprobe_enable_disable_command, static) = {
961 .path = "flowprobe feature add-del",
963 "flowprobe feature add-del <interface-name> <l2|ip4|ip6> disable",
964 .function = flowprobe_tx_interface_add_del_feature_command_fn,
966 VLIB_CLI_COMMAND (flowprobe_params_command, static) = {
967 .path = "flowprobe params",
969 "flowprobe params record <[l2] [l3] [l4]> [active <timer> passive <timer>]",
970 .function = flowprobe_params_command_fn,
972 VLIB_CLI_COMMAND (flowprobe_show_table_command, static) = {
973 .path = "show flowprobe table",
974 .short_help = "show flowprobe table",
975 .function = flowprobe_show_table_fn,
977 VLIB_CLI_COMMAND (flowprobe_show_stats_command, static) = {
978 .path = "show flowprobe statistics",
979 .short_help = "show flowprobe statistics",
980 .function = flowprobe_show_stats_fn,
985 * @brief Set up the API message handling tables
986 * @param vm vlib_main_t * vlib main data structure pointer
987 * @returns 0 to indicate all is well
989 static clib_error_t *
990 flowprobe_plugin_api_hookup (vlib_main_t * vm)
992 flowprobe_main_t *fm = &flowprobe_main;
994 vl_msg_api_set_handlers((VL_API_##N + fm->msg_id_base), \
996 vl_api_##n##_t_handler, \
998 vl_api_##n##_t_endian, \
999 vl_api_##n##_t_print, \
1000 sizeof(vl_api_##n##_t), 1);
1001 foreach_flowprobe_plugin_api_msg;
1007 #define vl_msg_name_crc_list
1008 #include <flowprobe/flowprobe_all_api_h.h>
1009 #undef vl_msg_name_crc_list
1012 setup_message_id_table (flowprobe_main_t * fm, api_main_t * am)
1014 #define _(id,n,crc) \
1015 vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + fm->msg_id_base);
1016 foreach_vl_msg_name_crc_flowprobe;
1021 * Main-core process, sending an interrupt to the per worker input
1022 * process that spins the per worker timer wheel.
1025 timer_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1027 uword *event_data = 0;
1028 vlib_main_t **worker_vms = 0, *worker_vm;
1029 flowprobe_main_t *fm = &flowprobe_main;
1031 /* Wait for Godot... */
1032 vlib_process_wait_for_event_or_clock (vm, 1e9);
1033 uword event_type = vlib_process_get_events (vm, &event_data);
1034 if (event_type != 1)
1035 clib_warning ("bogus kickoff event received, %d", event_type);
1036 vec_reset_length (event_data);
1039 if (vec_len (vlib_mains) == 0)
1040 vec_add1 (worker_vms, vm);
1043 for (i = 0; i < vec_len (vlib_mains); i++)
1045 worker_vm = vlib_mains[i];
1047 vec_add1 (worker_vms, worker_vm);
1050 f64 sleep_duration = 0.1;
1054 /* Send an interrupt to each timer input node */
1055 sleep_duration = 0.1;
1056 for (i = 0; i < vec_len (worker_vms); i++)
1058 worker_vm = worker_vms[i];
1061 vlib_node_set_interrupt_pending (worker_vm,
1062 flowprobe_walker_node.index);
1064 (fm->expired_passive_per_worker[i] > 0) ? 1e-4 : 0.1;
1067 vlib_process_suspend (vm, sleep_duration);
1069 return 0; /* or not */
1073 VLIB_REGISTER_NODE (flowprobe_timer_node,static) = {
1074 .function = timer_process,
1075 .name = "flowprobe-timer-process",
1076 .type = VLIB_NODE_TYPE_PROCESS,
1081 * @brief Set up the API message handling tables
1082 * @param vm vlib_main_t * vlib main data structure pointer
1083 * @returns 0 to indicate all is well, or a clib_error_t
1085 static clib_error_t *
1086 flowprobe_init (vlib_main_t * vm)
1088 flowprobe_main_t *fm = &flowprobe_main;
1089 vlib_thread_main_t *tm = &vlib_thread_main;
1090 clib_error_t *error = 0;
1095 fm->vnet_main = vnet_get_main ();
1097 /* Construct the API name */
1098 name = format (0, "flowprobe_%08x%c", api_version, 0);
1100 /* Ask for a correctly-sized block of API message decode slots */
1101 fm->msg_id_base = vl_msg_api_get_msg_ids
1102 ((char *) name, VL_MSG_FIRST_AVAILABLE);
1104 /* Hook up message handlers */
1105 error = flowprobe_plugin_api_hookup (vm);
1107 /* Add our API messages to the global name_crc hash table */
1108 setup_message_id_table (fm, &api_main);
1112 /* Set up time reference pair */
1113 fm->vlib_time_0 = vlib_time_now (vm);
1114 fm->nanosecond_time_0 = unix_time_now_nsec ();
1116 clib_memset (fm->template_reports, 0, sizeof (fm->template_reports));
1117 clib_memset (fm->template_size, 0, sizeof (fm->template_size));
1118 clib_memset (fm->template_per_flow, 0, sizeof (fm->template_per_flow));
1120 /* Decide how many worker threads we have */
1121 num_threads = 1 /* main thread */ + tm->n_threads;
1123 /* Allocate per worker thread vectors per flavour */
1124 for (i = 0; i < FLOW_N_VARIANTS; i++)
1126 vec_validate (fm->context[i].buffers_per_worker, num_threads - 1);
1127 vec_validate (fm->context[i].frames_per_worker, num_threads - 1);
1128 vec_validate (fm->context[i].next_record_offset_per_worker,
1132 fm->active_timer = FLOWPROBE_TIMER_ACTIVE;
1133 fm->passive_timer = FLOWPROBE_TIMER_PASSIVE;
1138 VLIB_INIT_FUNCTION (flowprobe_init);
1141 * fd.io coding-style-patch-verification: ON
1144 * eval: (c-set-style "gnu")