FD.io VPP  v21.01.1
Vector Packet Processing
flow_report.c
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1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /*
16  * flow_report.c
17  */
19 #include <vnet/api_errno.h>
20 #include <vnet/udp/udp.h>
21 
23 
26 {
28  return index < vec_len (frm->streams) &&
29  frm->streams[index].domain_id != ~0;
30 }
31 
33 add_stream (void)
34 {
36  u32 i;
37  for (i = 0; i < vec_len (frm->streams); i++)
38  if (!stream_index_valid (i))
39  return &frm->streams[i];
40  u32 index = vec_len (frm->streams);
41  vec_validate (frm->streams, index);
42  return &frm->streams[index];
43 }
44 
47 {
49  ASSERT (index < vec_len (frm->streams));
50  ASSERT (frm->streams[index].domain_id != ~0);
51  frm->streams[index].domain_id = ~0;
52 }
53 
54 static i32
56 {
58  flow_report_stream_t *stream;
59  u32 i;
60  for (i = 0; i < vec_len (frm->streams); i++)
61  if (stream_index_valid (i))
62  {
63  stream = &frm->streams[i];
64  if (domain_id == stream->domain_id)
65  {
66  if (src_port != stream->src_port)
67  return -2;
68  return i;
69  }
70  else if (src_port == stream->src_port)
71  {
72  return -2;
73  }
74  }
75  return -1;
76 }
77 
78 int
80  flow_report_t * fr, u32 * buffer_indexp)
81 {
82  u32 bi0;
83  vlib_buffer_t *b0;
87  udp_header_t *udp;
88  vlib_main_t *vm = frm->vlib_main;
89  flow_report_stream_t *stream;
90 
91  ASSERT (buffer_indexp);
92 
93  if (fr->update_rewrite || fr->rewrite == 0)
94  {
95  if (frm->ipfix_collector.as_u32 == 0 || frm->src_address.as_u32 == 0)
96  {
98  VLIB_NODE_STATE_DISABLED);
99  return -1;
100  }
101  vec_free (fr->rewrite);
102  fr->update_rewrite = 1;
103  }
104 
105  if (fr->update_rewrite)
106  {
107  fr->rewrite = fr->rewrite_callback (frm, fr,
108  &frm->ipfix_collector,
109  &frm->src_address,
110  frm->collector_port,
111  fr->report_elements,
112  fr->n_report_elements,
113  fr->stream_indexp);
114  fr->update_rewrite = 0;
115  }
116 
117  if (vlib_buffer_alloc (vm, &bi0, 1) != 1)
118  return -1;
119 
120  b0 = vlib_get_buffer (vm, bi0);
121 
122  /* Initialize the buffer */
124 
126 
127  clib_memcpy_fast (b0->data, fr->rewrite, vec_len (fr->rewrite));
128  b0->current_data = 0;
129  b0->current_length = vec_len (fr->rewrite);
130  b0->flags |= (VLIB_BUFFER_TOTAL_LENGTH_VALID | VNET_BUFFER_F_FLOW_REPORT);
131  vnet_buffer (b0)->sw_if_index[VLIB_RX] = 0;
132  vnet_buffer (b0)->sw_if_index[VLIB_TX] = frm->fib_index;
133 
134  tp = vlib_buffer_get_current (b0);
135  ip = (ip4_header_t *) & tp->ip4;
136  udp = (udp_header_t *) (ip + 1);
137  h = (ipfix_message_header_t *) (udp + 1);
138 
139  /* FIXUP: message header export_time */
140  h->export_time = (u32)
141  (((f64) frm->unix_time_0) +
142  (vlib_time_now (frm->vlib_main) - frm->vlib_time_0));
143  h->export_time = clib_host_to_net_u32 (h->export_time);
144 
145  stream = &frm->streams[fr->stream_index];
146 
147  /* FIXUP: message header sequence_number. Templates do not increase it */
148  h->sequence_number = clib_host_to_net_u32 (stream->sequence_number);
149 
150  /* FIXUP: udp length */
151  udp->length = clib_host_to_net_u16 (b0->current_length - sizeof (*ip));
152 
153  if (frm->udp_checksum)
154  {
155  /* RFC 7011 section 10.3.2. */
156  udp->checksum = ip4_tcp_udp_compute_checksum (vm, b0, ip);
157  if (udp->checksum == 0)
158  udp->checksum = 0xffff;
159  }
160 
161  *buffer_indexp = bi0;
162 
164 
165  return 0;
166 }
167 
168 u8 *
170  flow_report_t * fr,
171  ip4_address_t * collector_address,
173  u16 collector_port,
174  ipfix_report_element_t * report_elts,
175  u32 n_elts, u32 * stream_indexp)
176 {
177  ip4_header_t *ip;
178  udp_header_t *udp;
183  ipfix_field_specifier_t *first_field;
184  u8 *rewrite = 0;
186  flow_report_stream_t *stream;
187  int i;
189 
190  ASSERT (stream_indexp);
191  ASSERT (n_elts);
192  ASSERT (report_elts);
193 
194  stream = &frm->streams[fr->stream_index];
195  *stream_indexp = fr->stream_index;
196 
197  /* allocate rewrite space */
198  vec_validate_aligned (rewrite,
200  + n_elts * sizeof (ipfix_field_specifier_t) - 1,
202 
203  /* create the packet rewrite string */
204  tp = (ip4_ipfix_template_packet_t *) rewrite;
205  ip = (ip4_header_t *) & tp->ip4;
206  udp = (udp_header_t *) (ip + 1);
207  h = (ipfix_message_header_t *) (udp + 1);
208  s = (ipfix_set_header_t *) (h + 1);
209  t = (ipfix_template_header_t *) (s + 1);
210  first_field = f = (ipfix_field_specifier_t *) (t + 1);
211 
212  ip->ip_version_and_header_length = 0x45;
213  ip->ttl = 254;
214  ip->protocol = IP_PROTOCOL_UDP;
215  ip->src_address.as_u32 = src_address->as_u32;
216  ip->dst_address.as_u32 = collector_address->as_u32;
217  udp->src_port = clib_host_to_net_u16 (stream->src_port);
218  udp->dst_port = clib_host_to_net_u16 (collector_port);
219  udp->length = clib_host_to_net_u16 (vec_len (rewrite) - sizeof (*ip));
220 
221  /* FIXUP LATER: message header export_time */
222  h->domain_id = clib_host_to_net_u32 (stream->domain_id);
223 
224  ep = report_elts;
225 
226  for (i = 0; i < n_elts; i++)
227  {
228  f->e_id_length = ipfix_e_id_length (0, ep->info_element, ep->size);
229  f++;
230  ep++;
231  }
232 
233  /* Back to the template packet... */
234  ip = (ip4_header_t *) & tp->ip4;
235  udp = (udp_header_t *) (ip + 1);
236 
237  ASSERT (f - first_field);
238  /* Field count in this template */
239  t->id_count = ipfix_id_count (fr->template_id, f - first_field);
240 
241  /* set length in octets */
242  s->set_id_length =
243  ipfix_set_id_length (2 /* set_id */ , (u8 *) f - (u8 *) s);
244 
245  /* message length in octets */
246  h->version_length = version_length ((u8 *) f - (u8 *) h);
247 
248  ip->length = clib_host_to_net_u16 ((u8 *) f - (u8 *) ip);
249  ip->checksum = ip4_header_checksum (ip);
250 
251  return rewrite;
252 }
253 
254 static uword
257 {
259  flow_report_t *fr;
260  u32 ip4_lookup_node_index;
262  vlib_frame_t *nf = 0;
263  u32 template_bi;
264  u32 *to_next;
265  int send_template;
266  f64 now;
267  int rv;
268  uword event_type;
269  uword *event_data = 0;
270 
271  /* Wait for Godot... */
273  event_type = vlib_process_get_events (vm, &event_data);
274  if (event_type != 1)
275  clib_warning ("bogus kickoff event received, %d", event_type);
276  vec_reset_length (event_data);
277 
278  /* Enqueue pkts to ip4-lookup */
279  ip4_lookup_node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup");
280  ip4_lookup_node_index = ip4_lookup_node->index;
281 
282  while (1)
283  {
285  event_type = vlib_process_get_events (vm, &event_data);
286  vec_reset_length (event_data);
287 
288  vec_foreach (fr, frm->reports)
289  {
290  now = vlib_time_now (vm);
291 
292  /* Need to send a template packet? */
293  send_template =
294  now > (fr->last_template_sent + frm->template_interval);
295  send_template += fr->last_template_sent == 0;
296  template_bi = ~0;
297  rv = 0;
298 
299  if (send_template)
300  rv = send_template_packet (frm, fr, &template_bi);
301 
302  if (rv < 0)
303  continue;
304 
305  nf = vlib_get_frame_to_node (vm, ip4_lookup_node_index);
306  nf->n_vectors = 0;
307  to_next = vlib_frame_vector_args (nf);
308 
309  if (template_bi != ~0)
310  {
311  to_next[0] = template_bi;
312  to_next++;
313  nf->n_vectors++;
314  }
315 
316  nf = fr->flow_data_callback (frm, fr,
317  nf, to_next, ip4_lookup_node_index);
318  if (nf)
319  vlib_put_frame_to_node (vm, ip4_lookup_node_index, nf);
320  }
321  }
322 
323  return 0; /* not so much */
324 }
325 
326 /* *INDENT-OFF* */
328  .function = flow_report_process,
329  .type = VLIB_NODE_TYPE_PROCESS,
330  .name = "flow-report-process",
331 };
332 /* *INDENT-ON* */
333 
334 int
337  u16 * template_id)
338 {
339  int i;
340  int found_index = ~0;
341  flow_report_t *fr;
342  flow_report_stream_t *stream;
343  u32 si;
344 
345  si = find_stream (a->domain_id, a->src_port);
346  if (si == -2)
347  return VNET_API_ERROR_INVALID_VALUE;
348  if (si == -1 && a->is_add == 0)
349  return VNET_API_ERROR_NO_SUCH_ENTRY;
350 
351  for (i = 0; i < vec_len (frm->reports); i++)
352  {
353  fr = vec_elt_at_index (frm->reports, i);
354  if (fr->opaque.as_uword == a->opaque.as_uword
357  {
358  found_index = i;
359  if (template_id)
360  *template_id = fr->template_id;
361  break;
362  }
363  }
364 
365  if (a->is_add == 0)
366  {
367  if (found_index != ~0)
368  {
369  vec_delete (frm->reports, 1, found_index);
370  stream = &frm->streams[si];
371  stream->n_reports--;
372  if (stream->n_reports == 0)
373  delete_stream (si);
374  return 0;
375  }
376  return VNET_API_ERROR_NO_SUCH_ENTRY;
377  }
378 
379  if (found_index != ~0)
380  return VNET_API_ERROR_VALUE_EXIST;
381 
382  if (si == -1)
383  {
384  stream = add_stream ();
385  stream->domain_id = a->domain_id;
386  stream->src_port = a->src_port;
387  stream->sequence_number = 0;
388  stream->n_reports = 0;
389  si = stream - frm->streams;
390  }
391  else
392  stream = &frm->streams[si];
393 
394  stream->n_reports++;
395 
396  vec_add2 (frm->reports, fr, 1);
397 
398  fr->stream_index = si;
399  fr->template_id = 256 + stream->next_template_no;
400  stream->next_template_no = (stream->next_template_no + 1) % (65536 - 256);
401  fr->update_rewrite = 1;
402  fr->opaque = a->opaque;
407  fr->stream_indexp = a->stream_indexp;
408  if (template_id)
409  *template_id = fr->template_id;
410 
411  return 0;
412 }
413 
414 clib_error_t *
416 {
417  switch (error)
418  {
419  case 0:
420  return 0;
421  case VNET_API_ERROR_NO_SUCH_ENTRY:
422  return clib_error_return (0, "Flow report not found");
423  case VNET_API_ERROR_VALUE_EXIST:
424  return clib_error_return (0, "Flow report already exists");
425  case VNET_API_ERROR_INVALID_VALUE:
426  return clib_error_return (0, "Expecting either still unused values "
427  "for both domain_id and src_port "
428  "or already used values for both fields");
429  default:
430  return clib_error_return (0, "vnet_flow_report_add_del returned %d",
431  error);
432  }
433 }
434 
435 void
437 {
438  flow_report_t *fr;
439  u32 i;
440 
441  for (i = 0; i < vec_len (frm->streams); i++)
442  if (stream_index_valid (i))
443  frm->streams[i].sequence_number = 0;
444 
445  vec_foreach (fr, frm->reports)
446  {
447  fr->update_rewrite = 1;
448  fr->last_template_sent = 0;
449  }
450 }
451 
452 void
454 {
455  flow_report_t *fr;
456 
457  frm->streams[stream_index].sequence_number = 0;
458 
459  vec_foreach (fr, frm->reports)
460  if (frm->reports->stream_index == stream_index)
461  {
462  fr->update_rewrite = 1;
463  fr->last_template_sent = 0;
464  }
465 }
466 
467 int
469  u32 old_domain_id, u16 old_src_port,
470  u32 new_domain_id, u16 new_src_port)
471 {
472  i32 stream_index = find_stream (old_domain_id, old_src_port);
473  if (stream_index < 0)
474  return 1;
475  flow_report_stream_t *stream = &frm->streams[stream_index];
476  stream->domain_id = new_domain_id;
477  stream->src_port = new_src_port;
478  if (old_domain_id != new_domain_id || old_src_port != new_src_port)
479  vnet_stream_reset (frm, stream_index);
480  return 0;
481 }
482 
483 static clib_error_t *
485  unformat_input_t * input,
486  vlib_cli_command_t * cmd)
487 {
489  ip4_address_t collector, src;
490  u16 collector_port = UDP_DST_PORT_ipfix;
491  u32 fib_id;
492  u32 fib_index = ~0;
493 
494  collector.as_u32 = 0;
495  src.as_u32 = 0;
496  u32 path_mtu = 512; // RFC 7011 section 10.3.3.
497  u32 template_interval = 20;
498  u8 udp_checksum = 0;
499 
501  {
502  if (unformat (input, "collector %U", unformat_ip4_address, &collector))
503  ;
504  else if (unformat (input, "port %U", unformat_udp_port,
505  &collector_port))
506  ;
507  else if (unformat (input, "src %U", unformat_ip4_address, &src))
508  ;
509  else if (unformat (input, "fib-id %u", &fib_id))
510  {
511  ip4_main_t *im = &ip4_main;
512  uword *p = hash_get (im->fib_index_by_table_id, fib_id);
513  if (!p)
514  return clib_error_return (0, "fib ID %d doesn't exist\n", fib_id);
515  fib_index = p[0];
516  }
517  else if (unformat (input, "path-mtu %u", &path_mtu))
518  ;
519  else if (unformat (input, "template-interval %u", &template_interval))
520  ;
521  else if (unformat (input, "udp-checksum"))
522  udp_checksum = 1;
523  else
524  break;
525  }
526 
527  if (collector.as_u32 != 0 && src.as_u32 == 0)
528  return clib_error_return (0, "src address required");
529 
530  if (path_mtu > 1450 /* vpp does not support fragmentation */ )
531  return clib_error_return (0, "too big path-mtu value, maximum is 1450");
532 
533  if (path_mtu < 68)
534  return clib_error_return (0, "too small path-mtu value, minimum is 68");
535 
536  /* Reset report streams if we are reconfiguring IP addresses */
537  if (frm->ipfix_collector.as_u32 != collector.as_u32 ||
538  frm->src_address.as_u32 != src.as_u32 ||
539  frm->collector_port != collector_port)
541 
542  frm->ipfix_collector.as_u32 = collector.as_u32;
543  frm->collector_port = collector_port;
544  frm->src_address.as_u32 = src.as_u32;
545  frm->fib_index = fib_index;
546  frm->path_mtu = path_mtu;
547  frm->template_interval = template_interval;
548  frm->udp_checksum = udp_checksum;
549 
550  if (collector.as_u32)
551  vlib_cli_output (vm, "Collector %U, src address %U, "
552  "fib index %d, path MTU %u, "
553  "template resend interval %us, "
554  "udp checksum %s",
557  fib_index, path_mtu, template_interval,
558  udp_checksum ? "enabled" : "disabled");
559  else
560  vlib_cli_output (vm, "IPFIX Collector is disabled");
561 
562  /* Turn on the flow reporting process */
564  return 0;
565 }
566 
567 /* *INDENT-OFF* */
568 VLIB_CLI_COMMAND (set_ipfix_exporter_command, static) = {
569  .path = "set ipfix exporter",
570  .short_help = "set ipfix exporter "
571  "collector <ip4-address> [port <port>] "
572  "src <ip4-address> [fib-id <fib-id>] "
573  "[path-mtu <path-mtu>] "
574  "[template-interval <template-interval>] "
575  "[udp-checksum]",
576  .function = set_ipfix_exporter_command_fn,
577 };
578 /* *INDENT-ON* */
579 
580 
581 static clib_error_t *
583  unformat_input_t * input, vlib_cli_command_t * cmd)
584 {
585  /* poke the flow reporting process */
587  return 0;
588 }
589 
590 /* *INDENT-OFF* */
591 VLIB_CLI_COMMAND (ipfix_flush_command, static) = {
592  .path = "ipfix flush",
593  .short_help = "flush the current ipfix data [for make test]",
594  .function = ipfix_flush_command_fn,
595 };
596 /* *INDENT-ON* */
597 
598 static clib_error_t *
600 {
602 
603  frm->vlib_main = vm;
604  frm->vnet_main = vnet_get_main ();
605  frm->unix_time_0 = time (0);
606  frm->vlib_time_0 = vlib_time_now (frm->vlib_main);
607  frm->fib_index = ~0;
608 
609  return 0;
610 }
611 
613 /*
614  * fd.io coding-style-patch-verification: ON
615  *
616  * Local Variables:
617  * eval: (c-set-style "gnu")
618  * End:
619  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:509
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index, VLIB_BUFFER_IS_TRACED: trace this buffer.
Definition: buffer.h:124
clib_error_t * flow_report_add_del_error_to_clib_error(int error)
Definition: flow_report.c:415
static f64 vlib_process_wait_for_event_or_clock(vlib_main_t *vm, f64 dt)
Suspend a cooperative multi-tasking thread Waits for an event, or for the indicated number of seconds...
Definition: node_funcs.h:751
vlib_node_registration_t flow_report_process_node
(constructor) VLIB_REGISTER_NODE (flow_report_process_node)
Definition: flow_report.c:327
a
Definition: bitmap.h:544
u16 udp_checksum(udp_header_t *uh, u32 udp_len, void *ih, u8 version)
Definition: packets.c:116
ip4_address_t src_address
Definition: ip4_packet.h:125
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
uword as_uword
Definition: flow_report.h:74
i16 current_data
signed offset in data[], pre_data[] that we are currently processing.
Definition: buffer.h:110
unformat_function_t unformat_udp_port
Definition: udp.h:236
#define clib_memcpy_fast(a, b, c)
Definition: string.h:81
static u32 ipfix_e_id_length(int e, u16 id, u16 length)
Definition: ipfix_packet.h:77
u32 index
Definition: node.h:280
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:334
u32 stream_index
Definition: flow_report.h:91
static clib_error_t * ipfix_flush_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: flow_report.c:582
int vnet_flow_report_add_del(flow_report_main_t *frm, vnet_flow_report_add_del_args_t *a, u16 *template_id)
Definition: flow_report.c:335
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:113
vl_api_address_t src
Definition: gre.api:54
opaque_t opaque
Definition: flow_report.h:99
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:630
ip4_address_t src_address
Definition: flow_report.h:119
vlib_main_t * vm
Definition: in2out_ed.c:1580
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:520
unsigned char u8
Definition: types.h:56
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
ip4_address_t ipfix_collector
Definition: flow_report.h:117
double f64
Definition: types.h:142
vlib_node_registration_t ip4_lookup_node
(constructor) VLIB_REGISTER_NODE (ip4_lookup_node)
Definition: ip4_forward.c:104
void vnet_stream_reset(flow_report_main_t *frm, u32 stream_index)
Definition: flow_report.c:453
u32 n_report_elements
Definition: flow_report.h:104
flow_report_stream_t * streams
Definition: flow_report.h:114
format_function_t format_ip4_address
Definition: format.h:73
#define static_always_inline
Definition: clib.h:109
unformat_function_t unformat_ip4_address
Definition: format.h:68
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:173
static uword vlib_process_get_events(vlib_main_t *vm, uword **data_vector)
Return the first event type which has occurred and a vector of per-event data of that type...
Definition: node_funcs.h:579
ip4_address_t dst_address
Definition: ip4_packet.h:125
vnet_flow_rewrite_callback_t * rewrite_callback
Definition: flow_report.h:149
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
vlib_frame_t * vlib_get_frame_to_node(vlib_main_t *vm, u32 to_node_index)
Definition: main.c:182
#define clib_error_return(e, args...)
Definition: error.h:99
unsigned int u32
Definition: types.h:88
static uword flow_report_process(vlib_main_t *vm, vlib_node_runtime_t *rt, vlib_frame_t *f)
Definition: flow_report.c:255
flow_report_t * reports
Definition: flow_report.h:113
Definition: cJSON.c:84
flow_report_main_t flow_report_main
Definition: flow_report.c:22
#define hash_get(h, key)
Definition: hash.h:249
ipfix_report_element_t * report_elements
Definition: flow_report.h:150
vlib_node_t * vlib_get_node_by_name(vlib_main_t *vm, u8 *name)
Definition: node.c:45
uword * fib_index_by_table_id
Hash table mapping table id to fib index.
Definition: ip4.h:133
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:1015
static __clib_warn_unused_result u32 vlib_buffer_alloc(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Allocate buffers into supplied array.
Definition: buffer_funcs.h:677
u8 * rewrite
Definition: flow_report.h:89
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
void vlib_put_frame_to_node(vlib_main_t *vm, u32 to_node_index, vlib_frame_t *f)
Definition: main.c:216
vec_header_t h
Definition: buffer.c:322
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:233
vl_api_address_union_t src_address
Definition: ip_types.api:122
vnet_main_t * vnet_main
Definition: flow_report.h:137
static u32 version_length(u16 length)
Definition: ipfix_packet.h:33
int send_template_packet(flow_report_main_t *frm, flow_report_t *fr, u32 *buffer_indexp)
Definition: flow_report.c:79
static_always_inline u32 vlib_buffer_get_default_data_size(vlib_main_t *vm)
Definition: buffer_funcs.h:96
vl_api_ip_port_and_mask_t src_port
Definition: flow_types.api:91
static_always_inline flow_report_stream_t * add_stream(void)
Definition: flow_report.c:33
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:170
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
u16 n_vectors
Definition: node.h:397
sll srl srl sll sra u16x4 i
Definition: vector_sse42.h:317
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:380
static u32 ipfix_id_count(u16 id, u16 count)
Definition: ipfix_packet.h:184
#define clib_warning(format, args...)
Definition: error.h:59
u8 data[]
Packet data.
Definition: buffer.h:181
static clib_error_t * set_ipfix_exporter_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: flow_report.c:484
static_always_inline u8 stream_index_valid(u32 index)
Definition: flow_report.c:25
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:158
signed int i32
Definition: types.h:77
#define ASSERT(truth)
vlib_main_t * vlib_main
Definition: flow_report.h:136
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:696
u16 ip4_tcp_udp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip4_header_t *ip0)
Definition: ip4_forward.c:1328
#define vec_delete(V, N, M)
Delete N elements starting at element M.
Definition: vec.h:854
IPv4 main type.
Definition: ip4.h:107
ipfix_report_element_t * report_elements
Definition: flow_report.h:103
static_always_inline void delete_stream(u32 index)
Definition: flow_report.c:46
void vnet_flow_reports_reset(flow_report_main_t *frm)
Definition: flow_report.c:436
u16 template_id
Definition: flow_report.h:90
static void vlib_node_set_state(vlib_main_t *vm, u32 node_index, vlib_node_state_t new_state)
Set node dispatch state.
Definition: node_funcs.h:174
u32 * stream_indexp
Definition: flow_report.h:105
vnet_flow_data_callback_t * flow_data_callback
Definition: flow_report.h:108
static u32 ipfix_set_id_length(u16 set_id, u16 length)
Definition: ipfix_packet.h:121
Definition: defs.h:47
u8 * vnet_flow_rewrite_generic_callback(flow_report_main_t *frm, flow_report_t *fr, ip4_address_t *collector_address, ip4_address_t *src_address, u16 collector_port, ipfix_report_element_t *report_elts, u32 n_elts, u32 *stream_indexp)
Definition: flow_report.c:169
int update_rewrite
Definition: flow_report.h:93
vl_api_address_t ip
Definition: l2.api:501
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
f64 last_template_sent
Definition: flow_report.h:92
#define VLIB_BUFFER_TRACE_TRAJECTORY_INIT(b)
Definition: buffer.h:497
int vnet_stream_change(flow_report_main_t *frm, u32 old_domain_id, u16 old_src_port, u32 new_domain_id, u16 new_src_port)
Definition: flow_report.c:468
VLIB buffer representation.
Definition: buffer.h:102
u64 uword
Definition: types.h:112
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:297
u32 index
Definition: flow_types.api:221
vnet_flow_data_callback_t * flow_data_callback
Definition: flow_report.h:148
static i32 find_stream(u32 domain_id, u16 src_port)
Definition: flow_report.c:55
#define vnet_buffer(b)
Definition: buffer.h:417
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:1105
vnet_flow_rewrite_callback_t * rewrite_callback
Definition: flow_report.h:102
#define vec_foreach(var, vec)
Vector iterator.
u8 si
Definition: lisp_types.api:47
u8 ip_version_and_header_length
Definition: ip4_packet.h:93
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:85
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:314
static clib_error_t * flow_report_init(vlib_main_t *vm)
Definition: flow_report.c:599
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
Definition: defs.h:46
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170