FD.io VPP  v18.07.1-19-g511ce25
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 
22 
25 {
27  return index < vec_len (frm->streams) &&
28  frm->streams[index].domain_id != ~0;
29 }
30 
32 add_stream (void)
33 {
35  u32 i;
36  for (i = 0; i < vec_len (frm->streams); i++)
37  if (!stream_index_valid (i))
38  return &frm->streams[i];
39  u32 index = vec_len (frm->streams);
40  vec_validate (frm->streams, index);
41  return &frm->streams[index];
42 }
43 
46 {
48  ASSERT (index < vec_len (frm->streams));
49  ASSERT (frm->streams[index].domain_id != ~0);
50  frm->streams[index].domain_id = ~0;
51 }
52 
53 static i32
54 find_stream (u32 domain_id, u16 src_port)
55 {
57  flow_report_stream_t *stream;
58  u32 i;
59  for (i = 0; i < vec_len (frm->streams); i++)
60  if (stream_index_valid (i))
61  {
62  stream = &frm->streams[i];
63  if (domain_id == stream->domain_id)
64  {
65  if (src_port != stream->src_port)
66  return -2;
67  return i;
68  }
69  else if (src_port == stream->src_port)
70  {
71  return -2;
72  }
73  }
74  return -1;
75 }
76 
77 int
79  flow_report_t * fr, u32 * buffer_indexp)
80 {
81  u32 bi0;
82  vlib_buffer_t *b0;
85  ip4_header_t *ip;
86  udp_header_t *udp;
87  vlib_main_t *vm = frm->vlib_main;
88  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 */
126 
128 
129  clib_memcpy (b0->data, fr->rewrite, vec_len (fr->rewrite));
130  b0->current_data = 0;
131  b0->current_length = vec_len (fr->rewrite);
132  b0->flags |= (VLIB_BUFFER_TOTAL_LENGTH_VALID | VNET_BUFFER_F_FLOW_REPORT);
133  vnet_buffer (b0)->sw_if_index[VLIB_RX] = 0;
134  vnet_buffer (b0)->sw_if_index[VLIB_TX] = frm->fib_index;
135 
136  tp = vlib_buffer_get_current (b0);
137  ip = (ip4_header_t *) & tp->ip4;
138  udp = (udp_header_t *) (ip + 1);
139  h = (ipfix_message_header_t *) (udp + 1);
140 
141  /* FIXUP: message header export_time */
142  h->export_time = (u32)
143  (((f64) frm->unix_time_0) +
144  (vlib_time_now (frm->vlib_main) - frm->vlib_time_0));
145  h->export_time = clib_host_to_net_u32 (h->export_time);
146 
147  stream = &frm->streams[fr->stream_index];
148 
149  /* FIXUP: message header sequence_number. Templates do not increase it */
150  h->sequence_number = clib_host_to_net_u32 (stream->sequence_number);
151 
152  /* FIXUP: udp length */
153  udp->length = clib_host_to_net_u16 (b0->current_length - sizeof (*ip));
154 
155  if (frm->udp_checksum)
156  {
157  /* RFC 7011 section 10.3.2. */
158  udp->checksum = ip4_tcp_udp_compute_checksum (vm, b0, ip);
159  if (udp->checksum == 0)
160  udp->checksum = 0xffff;
161  }
162 
163  *buffer_indexp = bi0;
164 
166 
167  return 0;
168 }
169 
170 u8 *
172  flow_report_t * fr,
173  ip4_address_t * collector_address,
174  ip4_address_t * src_address,
175  u16 collector_port,
176  ipfix_report_element_t * report_elts,
177  u32 n_elts, u32 * stream_indexp)
178 {
179  ip4_header_t *ip;
180  udp_header_t *udp;
185  ipfix_field_specifier_t *first_field;
186  u8 *rewrite = 0;
188  flow_report_stream_t *stream;
189  int i;
191 
192  ASSERT (stream_indexp);
193  ASSERT (n_elts);
194  ASSERT (report_elts);
195 
196  stream = &frm->streams[fr->stream_index];
197  *stream_indexp = fr->stream_index;
198 
199  /* allocate rewrite space */
200  vec_validate_aligned (rewrite,
202  + n_elts * sizeof (ipfix_field_specifier_t) - 1,
204 
205  /* create the packet rewrite string */
206  tp = (ip4_ipfix_template_packet_t *) rewrite;
207  ip = (ip4_header_t *) & tp->ip4;
208  udp = (udp_header_t *) (ip + 1);
209  h = (ipfix_message_header_t *) (udp + 1);
210  s = (ipfix_set_header_t *) (h + 1);
211  t = (ipfix_template_header_t *) (s + 1);
212  first_field = f = (ipfix_field_specifier_t *) (t + 1);
213 
214  ip->ip_version_and_header_length = 0x45;
215  ip->ttl = 254;
216  ip->protocol = IP_PROTOCOL_UDP;
217  ip->src_address.as_u32 = src_address->as_u32;
218  ip->dst_address.as_u32 = collector_address->as_u32;
219  udp->src_port = clib_host_to_net_u16 (stream->src_port);
220  udp->dst_port = clib_host_to_net_u16 (collector_port);
221  udp->length = clib_host_to_net_u16 (vec_len (rewrite) - sizeof (*ip));
222 
223  /* FIXUP LATER: message header export_time */
224  h->domain_id = clib_host_to_net_u32 (stream->domain_id);
225 
226  ep = report_elts;
227 
228  for (i = 0; i < n_elts; i++)
229  {
230  f->e_id_length = ipfix_e_id_length (0, ep->info_element, ep->size);
231  f++;
232  ep++;
233  }
234 
235  /* Back to the template packet... */
236  ip = (ip4_header_t *) & tp->ip4;
237  udp = (udp_header_t *) (ip + 1);
238 
239  ASSERT (f - first_field);
240  /* Field count in this template */
241  t->id_count = ipfix_id_count (fr->template_id, f - first_field);
242 
243  /* set length in octets */
244  s->set_id_length =
245  ipfix_set_id_length (2 /* set_id */ , (u8 *) f - (u8 *) s);
246 
247  /* message length in octets */
248  h->version_length = version_length ((u8 *) f - (u8 *) h);
249 
250  ip->length = clib_host_to_net_u16 ((u8 *) f - (u8 *) ip);
251  ip->checksum = ip4_header_checksum (ip);
252 
253  return rewrite;
254 }
255 
256 static uword
259 {
261  flow_report_t *fr;
262  u32 ip4_lookup_node_index;
264  vlib_frame_t *nf = 0;
265  u32 template_bi;
266  u32 *to_next;
267  int send_template;
268  f64 now;
269  int rv;
270  uword event_type;
271  uword *event_data = 0;
272 
273  /* Wait for Godot... */
275  event_type = vlib_process_get_events (vm, &event_data);
276  if (event_type != 1)
277  clib_warning ("bogus kickoff event received, %d", event_type);
278  vec_reset_length (event_data);
279 
280  /* Enqueue pkts to ip4-lookup */
281  ip4_lookup_node = vlib_get_node_by_name (vm, (u8 *) "ip4-lookup");
282  ip4_lookup_node_index = ip4_lookup_node->index;
283 
284  while (1)
285  {
287  event_type = vlib_process_get_events (vm, &event_data);
288  vec_reset_length (event_data);
289 
290  vec_foreach (fr, frm->reports)
291  {
292  now = vlib_time_now (vm);
293 
294  /* Need to send a template packet? */
295  send_template =
296  now > (fr->last_template_sent + frm->template_interval);
297  send_template += fr->last_template_sent == 0;
298  template_bi = ~0;
299  rv = 0;
300 
301  if (send_template)
302  rv = send_template_packet (frm, fr, &template_bi);
303 
304  if (rv < 0)
305  continue;
306 
307  nf = vlib_get_frame_to_node (vm, ip4_lookup_node_index);
308  nf->n_vectors = 0;
309  to_next = vlib_frame_vector_args (nf);
310 
311  if (template_bi != ~0)
312  {
313  to_next[0] = template_bi;
314  to_next++;
315  nf->n_vectors++;
316  }
317 
318  nf = fr->flow_data_callback (frm, fr,
319  nf, to_next, ip4_lookup_node_index);
320  if (nf)
321  vlib_put_frame_to_node (vm, ip4_lookup_node_index, nf);
322  }
323  }
324 
325  return 0; /* not so much */
326 }
327 
328 /* *INDENT-OFF* */
330  .function = flow_report_process,
331  .type = VLIB_NODE_TYPE_PROCESS,
332  .name = "flow-report-process",
333 };
334 /* *INDENT-ON* */
335 
336 int
339  u16 * template_id)
340 {
341  int i;
342  int found_index = ~0;
343  flow_report_t *fr;
344  flow_report_stream_t *stream;
345  u32 si;
346 
347  si = find_stream (a->domain_id, a->src_port);
348  if (si == -2)
349  return VNET_API_ERROR_INVALID_VALUE;
350  if (si == -1 && a->is_add == 0)
351  return VNET_API_ERROR_NO_SUCH_ENTRY;
352 
353  for (i = 0; i < vec_len (frm->reports); i++)
354  {
355  fr = vec_elt_at_index (frm->reports, i);
356  if (fr->opaque.as_uword == a->opaque.as_uword
359  {
360  found_index = i;
361  if (template_id)
362  *template_id = fr->template_id;
363  break;
364  }
365  }
366 
367  if (a->is_add == 0)
368  {
369  if (found_index != ~0)
370  {
371  vec_delete (frm->reports, 1, found_index);
372  stream = &frm->streams[si];
373  stream->n_reports--;
374  if (stream->n_reports == 0)
375  delete_stream (si);
376  return 0;
377  }
378  return VNET_API_ERROR_NO_SUCH_ENTRY;
379  }
380 
381  if (found_index != ~0)
382  return VNET_API_ERROR_VALUE_EXIST;
383 
384  if (si == -1)
385  {
386  stream = add_stream ();
387  stream->domain_id = a->domain_id;
388  stream->src_port = a->src_port;
389  stream->sequence_number = 0;
390  stream->n_reports = 0;
391  si = stream - frm->streams;
392  }
393  else
394  stream = &frm->streams[si];
395 
396  stream->n_reports++;
397 
398  vec_add2 (frm->reports, fr, 1);
399 
400  fr->stream_index = si;
401  fr->template_id = 256 + stream->next_template_no;
402  stream->next_template_no = (stream->next_template_no + 1) % (65536 - 256);
403  fr->update_rewrite = 1;
404  fr->opaque = a->opaque;
409  fr->stream_indexp = a->stream_indexp;
410  if (template_id)
411  *template_id = fr->template_id;
412 
413  return 0;
414 }
415 
416 clib_error_t *
418 {
419  switch (error)
420  {
421  case 0:
422  return 0;
423  case VNET_API_ERROR_NO_SUCH_ENTRY:
424  return clib_error_return (0, "Flow report not found");
425  case VNET_API_ERROR_VALUE_EXIST:
426  return clib_error_return (0, "Flow report already exists");
427  case VNET_API_ERROR_INVALID_VALUE:
428  return clib_error_return (0, "Expecting either still unused values "
429  "for both domain_id and src_port "
430  "or already used values for both fields");
431  default:
432  return clib_error_return (0, "vnet_flow_report_add_del returned %d",
433  error);
434  }
435 }
436 
437 void
439 {
440  flow_report_t *fr;
441  u32 i;
442 
443  for (i = 0; i < vec_len (frm->streams); i++)
444  if (stream_index_valid (i))
445  frm->streams[i].sequence_number = 0;
446 
447  vec_foreach (fr, frm->reports)
448  {
449  fr->update_rewrite = 1;
450  fr->last_template_sent = 0;
451  }
452 }
453 
454 void
456 {
457  flow_report_t *fr;
458 
459  frm->streams[stream_index].sequence_number = 0;
460 
461  vec_foreach (fr, frm->reports)
462  if (frm->reports->stream_index == stream_index)
463  {
464  fr->update_rewrite = 1;
465  fr->last_template_sent = 0;
466  }
467 }
468 
469 int
471  u32 old_domain_id, u16 old_src_port,
472  u32 new_domain_id, u16 new_src_port)
473 {
474  i32 stream_index = find_stream (old_domain_id, old_src_port);
475  if (stream_index < 0)
476  return 1;
477  flow_report_stream_t *stream = &frm->streams[stream_index];
478  stream->domain_id = new_domain_id;
479  stream->src_port = new_src_port;
480  if (old_domain_id != new_domain_id || old_src_port != new_src_port)
481  vnet_stream_reset (frm, stream_index);
482  return 0;
483 }
484 
485 static clib_error_t *
487  unformat_input_t * input,
488  vlib_cli_command_t * cmd)
489 {
491  ip4_address_t collector, src;
492  u16 collector_port = UDP_DST_PORT_ipfix;
493  u32 fib_id;
494  u32 fib_index = ~0;
495 
496  collector.as_u32 = 0;
497  src.as_u32 = 0;
498  u32 path_mtu = 512; // RFC 7011 section 10.3.3.
499  u32 template_interval = 20;
500  u8 udp_checksum = 0;
501 
503  {
504  if (unformat (input, "collector %U", unformat_ip4_address, &collector))
505  ;
506  else if (unformat (input, "port %u", &collector_port))
507  ;
508  else if (unformat (input, "src %U", unformat_ip4_address, &src))
509  ;
510  else if (unformat (input, "fib-id %u", &fib_id))
511  {
512  ip4_main_t *im = &ip4_main;
513  uword *p = hash_get (im->fib_index_by_table_id, fib_id);
514  if (!p)
515  return clib_error_return (0, "fib ID %d doesn't exist\n", fib_id);
516  fib_index = p[0];
517  }
518  else if (unformat (input, "path-mtu %u", &path_mtu))
519  ;
520  else if (unformat (input, "template-interval %u", &template_interval))
521  ;
522  else if (unformat (input, "udp-checksum"))
523  udp_checksum = 1;
524  else
525  break;
526  }
527 
528  if (collector.as_u32 != 0 && src.as_u32 == 0)
529  return clib_error_return (0, "src address required");
530 
531  if (path_mtu > 1450 /* vpp does not support fragmentation */ )
532  return clib_error_return (0, "too big path-mtu value, maximum is 1450");
533 
534  if (path_mtu < 68)
535  return clib_error_return (0, "too small path-mtu value, minimum is 68");
536 
537  /* Reset report streams if we are reconfiguring IP addresses */
538  if (frm->ipfix_collector.as_u32 != collector.as_u32 ||
539  frm->src_address.as_u32 != src.as_u32 ||
540  frm->collector_port != collector_port)
542 
543  frm->ipfix_collector.as_u32 = collector.as_u32;
544  frm->collector_port = collector_port;
545  frm->src_address.as_u32 = src.as_u32;
546  frm->fib_index = fib_index;
547  frm->path_mtu = path_mtu;
548  frm->template_interval = template_interval;
549  frm->udp_checksum = udp_checksum;
550 
551  if (collector.as_u32)
552  vlib_cli_output (vm, "Collector %U, src address %U, "
553  "fib index %d, path MTU %u, "
554  "template resend interval %us, "
555  "udp checksum %s",
558  fib_index, path_mtu, template_interval,
559  udp_checksum ? "enabled" : "disabled");
560  else
561  vlib_cli_output (vm, "IPFIX Collector is disabled");
562 
563  /* Turn on the flow reporting process */
565  return 0;
566 }
567 
568 /* *INDENT-OFF* */
569 VLIB_CLI_COMMAND (set_ipfix_exporter_command, static) = {
570  .path = "set ipfix exporter",
571  .short_help = "set ipfix exporter "
572  "collector <ip4-address> [port <port>] "
573  "src <ip4-address> [fib-id <fib-id>] "
574  "[path-mtu <path-mtu>] "
575  "[template-interval <template-interval>]",
576  "[udp-checksum]",
577  .function = set_ipfix_exporter_command_fn,
578 };
579 /* *INDENT-ON* */
580 
581 
582 static clib_error_t *
584  unformat_input_t * input, vlib_cli_command_t * cmd)
585 {
586  /* poke the flow reporting process */
588  return 0;
589 }
590 
591 /* *INDENT-OFF* */
592 VLIB_CLI_COMMAND (ipfix_flush_command, static) = {
593  .path = "ipfix flush",
594  .short_help = "flush the current ipfix data [for make test]",
595  .function = ipfix_flush_command_fn,
596 };
597 /* *INDENT-ON* */
598 
599 static clib_error_t *
601 {
603 
604  frm->vlib_main = vm;
605  frm->vnet_main = vnet_get_main ();
606  frm->unix_time_0 = time (0);
607  frm->vlib_time_0 = vlib_time_now (frm->vlib_main);
608  frm->fib_index = ~0;
609 
610  return 0;
611 }
612 
614 /*
615  * fd.io coding-style-patch-verification: ON
616  *
617  * Local Variables:
618  * eval: (c-set-style "gnu")
619  * End:
620  */
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:437
clib_error_t * flow_report_add_del_error_to_clib_error(int error)
Definition: flow_report.c:417
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:699
vlib_node_registration_t flow_report_process_node
(constructor) VLIB_REGISTER_NODE (flow_report_process_node)
Definition: flow_report.c:329
a
Definition: bitmap.h:538
u16 udp_checksum(udp_header_t *uh, u32 udp_len, void *ih, u8 version)
Definition: packets.c:114
ip4_address_t src_address
Definition: ip4_packet.h:169
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
uword as_uword
Definition: flow_report.h:74
static u32 ipfix_e_id_length(int e, u16 id, u16 length)
Definition: ipfix_packet.h:77
u32 index
Definition: node.h:273
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:228
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:583
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:337
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:562
int i
ip4_address_t src_address
Definition: flow_report.h:119
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:448
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:455
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:81
i16 current_data
signed offset in data[], pre_data[] that we are currently processing.
Definition: buffer.h:104
#define static_always_inline
Definition: clib.h:93
unformat_function_t unformat_ip4_address
Definition: format.h:76
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:156
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:542
ip4_address_t dst_address
Definition: ip4_packet.h:169
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
#define VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES
Definition: buffer.h:440
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:257
flow_report_t * reports
Definition: flow_report.h:113
#define fl(x, y)
flow_report_main_t flow_report_main
Definition: flow_report.c:21
#define hash_get(h, key)
Definition: hash.h:249
ipfix_report_element_t * report_elements
Definition: flow_report.h:150
uword * fib_index_by_table_id
Hash table mapping table id to fib index.
Definition: ip4.h:121
u16 current_length
Nbytes between current data and the end of this buffer.
Definition: buffer.h:108
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:952
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:191
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:202
#define VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX
Definition: buffer.h:439
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:78
static_always_inline flow_report_stream_t * add_stream(void)
Definition: flow_report.c:32
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:153
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
u16 n_vectors
Definition: node.h:380
vlib_main_t * vm
Definition: buffer.c:294
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:339
static u32 ipfix_id_count(u16 id, u16 count)
Definition: ipfix_packet.h:184
#define clib_warning(format, args...)
Definition: error.h:59
#define clib_memcpy(a, b, c)
Definition: string.h:75
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:486
vlib_node_t * vlib_get_node_by_name(vlib_main_t *vm, u8 *name)
Definition: node.c:45
static_always_inline u8 stream_index_valid(u32 index)
Definition: flow_report.c:24
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:154
signed int i32
Definition: types.h:81
#define ASSERT(truth)
vlib_main_t * vlib_main
Definition: flow_report.h:136
u16 ip4_tcp_udp_compute_checksum(vlib_main_t *vm, vlib_buffer_t *p0, ip4_header_t *ip0)
Definition: ip4_forward.c:1055
#define vec_delete(V, N, M)
Delete N elements starting at element M.
Definition: vec.h:786
IPv4 main type.
Definition: ip4.h:95
ipfix_report_element_t * report_elements
Definition: flow_report.h:103
static_always_inline void delete_stream(u32 index)
Definition: flow_report.c:45
void vnet_flow_reports_reset(flow_report_main_t *frm)
Definition: flow_report.c:438
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:147
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:171
int update_rewrite
Definition: flow_report.h:93
#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:546
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:470
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:267
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:54
static void vlib_buffer_init_for_free_list(vlib_buffer_t *dst, vlib_buffer_free_list_t *fl)
#define vnet_buffer(b)
Definition: buffer.h:360
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:832
vnet_flow_rewrite_callback_t * rewrite_callback
Definition: flow_report.h:102
u8 data[0]
Packet data.
Definition: buffer.h:172
#define vec_foreach(var, vec)
Vector iterator.
u8 ip_version_and_header_length
Definition: ip4_packet.h:137
static vlib_buffer_free_list_t * vlib_buffer_get_free_list(vlib_main_t *vm, vlib_buffer_free_list_index_t free_list_index)
Definition: buffer_funcs.h:662
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:62
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:111
static u32 vlib_buffer_alloc(vlib_main_t *vm, u32 *buffers, u32 n_buffers)
Allocate buffers into supplied array.
Definition: buffer_funcs.h:490
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:681
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:57
static u16 ip4_header_checksum(ip4_header_t *i)
Definition: ip4_packet.h:246
static clib_error_t * flow_report_init(vlib_main_t *vm)
Definition: flow_report.c:600
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
Definition: defs.h:46
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170