FD.io VPP  v21.10.1-2-g0a485f517
Vector Packet Processing
l2_rw.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 #include <vlib/vlib.h>
17 #include <vnet/l2/feat_bitmap.h>
18 #include <vnet/l2/l2_rw.h>
20 
21 /**
22  * @file
23  * @brief Layer 2 Rewrite.
24  *
25  * Layer 2-Rewrite node uses classify tables to match packets. Then, using
26  * the provisioned mask and value, modifies the packet header.
27  */
28 
29 
30 #ifndef CLIB_MARCH_VARIANT
32 #endif /* CLIB_MARCH_VARIANT */
33 
34 typedef struct
35 {
40 
41 static u8 *
42 format_l2_rw_entry (u8 * s, va_list * args)
43 {
44  l2_rw_entry_t *e = va_arg (*args, l2_rw_entry_t *);
45  l2_rw_main_t *rw = &l2_rw_main;
46  s = format (s, "%d - mask:%U value:%U\n",
47  e - rw->entries,
48  format_hex_bytes, e->mask,
49  e->rewrite_n_vectors * sizeof (u32x4), format_hex_bytes,
50  e->value, e->rewrite_n_vectors * sizeof (u32x4));
51  s =
52  format (s, " hits:%d skip_bytes:%d", e->hit_count,
53  e->skip_n_vectors * sizeof (u32x4));
54  return s;
55 }
56 
57 static u8 *
58 format_l2_rw_config (u8 * s, va_list * args)
59 {
60  l2_rw_config_t *c = va_arg (*args, l2_rw_config_t *);
61  return format (s, "table-index:%d miss-index:%d",
62  c->table_index, c->miss_index);
63 }
64 
65 /* packet trace format function */
66 static u8 *
67 format_l2_rw_trace (u8 * s, va_list * args)
68 {
69  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
70  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
71  l2_rw_trace_t *t = va_arg (*args, l2_rw_trace_t *);
72  return format (s, "l2-rw: sw_if_index %d, table %d, entry %d",
75 }
76 
77 always_inline l2_rw_config_t *
79 {
80  l2_rw_main_t *rw = &l2_rw_main;
82  {
84  rw->configs[sw_if_index].table_index = ~0;
85  rw->configs[sw_if_index].miss_index = ~0;
86  rw->configs_bitmap =
88  }
89  return &rw->configs[sw_if_index];
90 }
91 
93 l2_rw_rewrite (l2_rw_entry_t * rwe, u8 * h)
94 {
95  u32x4u *d = ((u32x4u *) h) + rwe->skip_n_vectors;
96  switch (rwe->rewrite_n_vectors)
97  {
98  case 5:
99  d[4] = (d[4] & ~rwe->mask[4]) | rwe->value[4];
100  /* FALLTHROUGH */
101  case 4:
102  d[3] = (d[3] & ~rwe->mask[3]) | rwe->value[3];
103  /* FALLTHROUGH */
104  case 3:
105  d[2] = (d[2] & ~rwe->mask[2]) | rwe->value[2];
106  /* FALLTHROUGH */
107  case 2:
108  d[1] = (d[1] & ~rwe->mask[1]) | rwe->value[1];
109  /* FALLTHROUGH */
110  case 1:
111  d[0] = (d[0] & ~rwe->mask[0]) | rwe->value[0];
112  break;
113  default:
114  abort ();
115  }
116 }
117 
120 {
121  l2_rw_main_t *rw = &l2_rw_main;
122  u32 n_left_from, *from, *to_next, next_index;
125 
127  n_left_from = frame->n_vectors; /* number of packets to process */
128  next_index = node->cached_next_index;
129 
130  while (n_left_from > 0)
131  {
132  u32 n_left_to_next;
133 
134  /* get space to enqueue frame to graph node "next_index" */
135  vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
136 
137  while (n_left_from >= 6 && n_left_to_next >= 2)
138  {
139  u32 bi0, next0, sw_if_index0, rwe_index0;
140  u32 bi1, next1, sw_if_index1, rwe_index1;
141  vlib_buffer_t *b0, *b1;
142  ethernet_header_t *h0, *h1;
143  l2_rw_config_t *config0, *config1;
144  u64 hash0, hash1;
145  vnet_classify_table_t *t0, *t1;
146  vnet_classify_entry_t *e0, *e1;
147  l2_rw_entry_t *rwe0, *rwe1;
148 
149  {
150  vlib_buffer_t *p2, *p3, *p4, *p5;
151  p2 = vlib_get_buffer (vm, from[2]);
152  p3 = vlib_get_buffer (vm, from[3]);
153  p4 = vlib_get_buffer (vm, from[4]);
154  p5 = vlib_get_buffer (vm, from[5]);
155 
156  vlib_prefetch_buffer_header (p4, LOAD);
157  vlib_prefetch_buffer_header (p5, LOAD);
158  vlib_prefetch_buffer_data (p2, LOAD);
159  vlib_prefetch_buffer_data (p3, LOAD);
160  }
161 
162  bi0 = from[0];
163  bi1 = from[1];
164  to_next[0] = bi0;
165  to_next[1] = bi1;
166  from += 2;
167  to_next += 2;
168  n_left_from -= 2;
169  n_left_to_next -= 2;
170 
171  b0 = vlib_get_buffer (vm, bi0);
172  b1 = vlib_get_buffer (vm, bi1);
173  h0 = vlib_buffer_get_current (b0);
174  h1 = vlib_buffer_get_current (b1);
175 
176  sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
177  sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
178  config0 = l2_rw_get_config (sw_if_index0); /*TODO: check sw_if_index0 value */
179  config1 = l2_rw_get_config (sw_if_index1); /*TODO: check sw_if_index0 value */
180  t0 = pool_elt_at_index (vcm->tables, config0->table_index);
181  t1 = pool_elt_at_index (vcm->tables, config1->table_index);
182 
183  hash0 = vnet_classify_hash_packet (t0, (u8 *) h0);
184  hash1 = vnet_classify_hash_packet (t1, (u8 *) h1);
185  e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now);
186  e1 = vnet_classify_find_entry (t1, (u8 *) h1, hash1, now);
187 
188  while (!e0 && (t0->next_table_index != ~0))
189  {
190  t0 = pool_elt_at_index (vcm->tables, t0->next_table_index);
191  hash0 = vnet_classify_hash_packet (t0, (u8 *) h0);
192  e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now);
193  }
194 
195  while (!e1 && (t1->next_table_index != ~0))
196  {
197  t1 = pool_elt_at_index (vcm->tables, t1->next_table_index);
198  hash1 = vnet_classify_hash_packet (t1, (u8 *) h1);
199  e1 = vnet_classify_find_entry (t1, (u8 *) h1, hash1, now);
200  }
201 
202  rwe_index0 = e0 ? e0->opaque_index : config0->miss_index;
203  rwe_index1 = e1 ? e1->opaque_index : config1->miss_index;
204 
205  if (rwe_index0 != ~0)
206  {
207  rwe0 = pool_elt_at_index (rw->entries, rwe_index0);
208  l2_rw_rewrite (rwe0, (u8 *) h0);
209  }
210  if (rwe_index1 != ~0)
211  {
212  rwe1 = pool_elt_at_index (rw->entries, rwe_index1);
213  l2_rw_rewrite (rwe1, (u8 *) h1);
214  }
215 
216  if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED)))
217  {
218  l2_rw_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
219  t->sw_if_index = sw_if_index0;
220  t->classify_table_index = config0->table_index;
221  t->rewrite_entry_index = rwe_index0;
222  }
223 
224  if (PREDICT_FALSE ((b1->flags & VLIB_BUFFER_IS_TRACED)))
225  {
226  l2_rw_trace_t *t = vlib_add_trace (vm, node, b1, sizeof (*t));
227  t->sw_if_index = sw_if_index1;
228  t->classify_table_index = config1->table_index;
229  t->rewrite_entry_index = rwe_index1;
230  }
231 
232  /* Update feature bitmap and get next feature index */
234  L2INPUT_FEAT_RW);
236  L2INPUT_FEAT_RW);
237 
239  to_next, n_left_to_next,
240  bi0, bi1, next0, next1);
241  }
242 
243  while (n_left_from > 0 && n_left_to_next > 0)
244  {
245  u32 bi0, next0, sw_if_index0, rwe_index0;
246  vlib_buffer_t *b0;
247  ethernet_header_t *h0;
248  l2_rw_config_t *config0;
249  u64 hash0;
252  l2_rw_entry_t *rwe0;
253 
254  bi0 = from[0];
255  to_next[0] = bi0;
256  from += 1;
257  to_next += 1;
258  n_left_from -= 1;
259  n_left_to_next -= 1;
260 
261  b0 = vlib_get_buffer (vm, bi0);
262  h0 = vlib_buffer_get_current (b0);
263 
264  sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
265  config0 = l2_rw_get_config (sw_if_index0); /*TODO: check sw_if_index0 value */
266  t0 = pool_elt_at_index (vcm->tables, config0->table_index);
267 
268  hash0 = vnet_classify_hash_packet (t0, (u8 *) h0);
269  e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now);
270 
271  while (!e0 && (t0->next_table_index != ~0))
272  {
273  t0 = pool_elt_at_index (vcm->tables, t0->next_table_index);
274  hash0 = vnet_classify_hash_packet (t0, (u8 *) h0);
275  e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now);
276  }
277 
278  rwe_index0 = e0 ? e0->opaque_index : config0->miss_index;
279 
280  if (rwe_index0 != ~0)
281  {
282  rwe0 = pool_elt_at_index (rw->entries, rwe_index0);
283  l2_rw_rewrite (rwe0, (u8 *) h0);
284  }
285 
286  if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED)))
287  {
288  l2_rw_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
289  t->sw_if_index = sw_if_index0;
290  t->classify_table_index = config0->table_index;
291  t->rewrite_entry_index = rwe_index0;
292  }
293 
294  /* Update feature bitmap and get next feature index */
296  L2INPUT_FEAT_RW);
297 
299  to_next, n_left_to_next,
300  bi0, next0);
301  }
302  vlib_put_next_frame (vm, node, next_index, n_left_to_next);
303  }
304 
305  return frame->n_vectors;
306 }
307 
308 #ifndef CLIB_MARCH_VARIANT
309 int
311  u8 * mask, u8 * value, u32 len, u32 skip, u8 is_del)
312 {
313  l2_rw_main_t *rw = &l2_rw_main;
314  l2_rw_entry_t *e = 0;
315  if (*index != ~0)
316  {
317  if (pool_is_free_index (rw->entries, *index))
318  {
319  return -1;
320  }
321  e = pool_elt_at_index (rw->entries, *index);
322  }
323  else
324  {
325  pool_get (rw->entries, e);
326  *index = e - rw->entries;
327  }
328 
329  if (is_del)
330  {
331  pool_put (rw->entries, e);
332  return 0;
333  }
334 
335  e->skip_n_vectors = skip / sizeof (u32x4);
336  skip -= e->skip_n_vectors * sizeof (u32x4);
337  e->rewrite_n_vectors = (skip + len - 1) / sizeof (u32x4) + 1;
338  vec_alloc_aligned (e->mask, e->rewrite_n_vectors, sizeof (u32x4));
339  clib_memset (e->mask, 0, e->rewrite_n_vectors * sizeof (u32x4));
340  vec_alloc_aligned (e->value, e->rewrite_n_vectors, sizeof (u32x4));
341  clib_memset (e->value, 0, e->rewrite_n_vectors * sizeof (u32x4));
342 
343  clib_memcpy (((u8 *) e->value) + skip, value, len);
344  clib_memcpy (((u8 *) e->mask) + skip, mask, len);
345 
346  int i;
347  for (i = 0; i < e->rewrite_n_vectors; i++)
348  {
349  e->value[i] &= e->mask[i];
350  }
351 
352  return 0;
353 }
354 #endif /* CLIB_MARCH_VARIANT */
355 
356 static clib_error_t *
358  unformat_input_t * input, vlib_cli_command_t * cmd)
359 {
360  u32 index = ~0;
361  u8 *mask = 0;
362  u8 *value = 0;
363  u32 skip = 0;
364  u8 del = 0;
365 
367  {
368  if (unformat (input, "index %d", &index))
369  ;
370  else if (unformat (input, "mask %U", unformat_hex_string, &mask))
371  ;
372  else if (unformat (input, "value %U", unformat_hex_string, &value))
373  ;
374  else if (unformat (input, "skip %d", &skip))
375  ;
376  else if (unformat (input, "del"))
377  del = 1;
378  else
379  break;
380  }
381 
382  if (!mask || !value)
383  return clib_error_return (0, "Unspecified mask or value");
384 
385  if (vec_len (mask) != vec_len (value))
386  return clib_error_return (0, "Mask and value lengths must be identical");
387 
388  int ret;
389  if ((ret =
390  l2_rw_mod_entry (&index, mask, value, vec_len (mask), skip, del)))
391  return clib_error_return (0, "Could not add entry");
392 
393  return 0;
394 }
395 
396 /*?
397  * Layer 2-Rewrite node uses classify tables to match packets. Then, using
398  * the provisioned mask and value, modifies the packet header.
399  *
400  * @cliexpar
401  * @todo This is incomplete. This needs a detailed description and a
402  * practical example.
403 ?*/
404 /* *INDENT-OFF* */
406  .path = "l2 rewrite entry",
407  .short_help =
408  "l2 rewrite entry [index <index>] [mask <hex-mask>] [value <hex-value>] [skip <n_bytes>] [del]",
409  .function = l2_rw_entry_cli_fn,
410 };
411 /* *INDENT-ON* */
412 
413 #ifndef CLIB_MARCH_VARIANT
414 int
415 l2_rw_interface_set_table (u32 sw_if_index, u32 table_index, u32 miss_index)
416 {
417  l2_rw_config_t *c = l2_rw_get_config (sw_if_index);
418  l2_rw_main_t *rw = &l2_rw_main;
419 
420  c->table_index = table_index;
421  c->miss_index = miss_index;
422  u32 feature_bitmap = (table_index == ~0) ? 0 : L2INPUT_FEAT_RW;
423 
424  l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_RW, feature_bitmap);
425 
426  if (c->table_index == ~0)
428 
429  return 0;
430 }
431 #endif /* CLIB_MARCH_VARIANT */
432 
433 static clib_error_t *
435  unformat_input_t * input, vlib_cli_command_t * cmd)
436 {
437  vnet_main_t *vnm = vnet_get_main ();
438  u32 table_index = ~0;
439  u32 sw_if_index = ~0;
440  u32 miss_index = ~0;
441 
443  {
444  unformat (input, "%U", unformat_vnet_sw_interface, vnm, &sw_if_index);
445  }
446 
448  {
449  if (unformat (input, "table %d", &table_index))
450  ;
451  else if (unformat (input, "miss-index %d", &miss_index))
452  ;
453  else
454  break;
455  }
456 
457  if (sw_if_index == ~0)
458  return clib_error_return (0,
459  "You must specify an interface 'iface <interface>'",
460  format_unformat_error, input);
461  int ret;
462  if ((ret =
463  l2_rw_interface_set_table (sw_if_index, table_index, miss_index)))
464  return clib_error_return (0, "l2_rw_interface_set_table returned %d",
465  ret);
466 
467  return 0;
468 }
469 
470 /*?
471  * Layer 2-Rewrite node uses classify tables to match packets. Then, using
472  * the provisioned mask and value, modifies the packet header.
473  *
474  * @cliexpar
475  * @todo This is incomplete. This needs a detailed description and a
476  * practical example.
477 ?*/
478 /* *INDENT-OFF* */
480  .path = "set interface l2 rewrite",
481  .short_help =
482  "set interface l2 rewrite <interface> [table <table index>] [miss-index <entry-index>]",
483  .function = l2_rw_interface_cli_fn,
484 };
485 /* *INDENT-ON* */
486 
487 static clib_error_t *
489  unformat_input_t * input,
490  vlib_cli_command_t * cmd)
491 {
492  l2_rw_main_t *rw = &l2_rw_main;
494  vlib_cli_output (vm, "No interface is currently using l2 rewrite\n");
495 
496  uword i;
497  /* *INDENT-OFF* */
499  vlib_cli_output (vm, "sw_if_index:%d %U\n", i, format_l2_rw_config, &rw->configs[i]);
500  }
501  /* *INDENT-ON* */
502  return 0;
503 }
504 
505 /*?
506  * Layer 2-Rewrite node uses classify tables to match packets. Then, using
507  * the provisioned mask and value, modifies the packet header.
508  *
509  * @cliexpar
510  * @todo This is incomplete. This needs a detailed description and a
511  * practical example.
512 ?*/
513 /* *INDENT-OFF* */
515  .path = "show l2 rewrite interfaces",
516  .short_help =
517  "show l2 rewrite interfaces",
518  .function = l2_rw_show_interfaces_cli_fn,
519 };
520 /* *INDENT-ON* */
521 
522 static clib_error_t *
524  unformat_input_t * input, vlib_cli_command_t * cmd)
525 {
526  l2_rw_main_t *rw = &l2_rw_main;
527  l2_rw_entry_t *e;
528  if (pool_elts (rw->entries) == 0)
529  vlib_cli_output (vm, "No entries\n");
530 
531  /* *INDENT-OFF* */
532  pool_foreach (e, rw->entries) {
533  vlib_cli_output (vm, "%U\n", format_l2_rw_entry, e);
534  }
535  /* *INDENT-ON* */
536  return 0;
537 }
538 
539 /*?
540  * Layer 2-Rewrite node uses classify tables to match packets. Then, using
541  * the provisioned mask and value, modifies the packet header.
542  *
543  * @cliexpar
544  * @todo This is incomplete. This needs a detailed description and a
545  * practical example.
546 ?*/
547 /* *INDENT-OFF* */
549  .path = "show l2 rewrite entries",
550  .short_help =
551  "show l2 rewrite entries",
552  .function = l2_rw_show_entries_cli_fn,
553 };
554 /* *INDENT-ON* */
555 
556 static int
557 l2_rw_enable_disable (u32 bridge_domain, u8 disable)
558 {
559  u32 mask = L2INPUT_FEAT_RW;
560  l2input_set_bridge_features (bridge_domain, mask, disable ? 0 : mask);
561  return 0;
562 }
563 
564 static clib_error_t *
566  unformat_input_t * input, vlib_cli_command_t * cmd)
567 {
568  u32 bridge_domain;
569  u8 disable = 0;
570 
572  !unformat (input, "%d", &bridge_domain))
573  {
574  return clib_error_return (0, "You must specify a bridge domain");
575  }
576 
578  unformat (input, "disable"))
579  {
580  disable = 1;
581  }
582 
583  if (l2_rw_enable_disable (bridge_domain, disable))
584  return clib_error_return (0, "Could not enable or disable rewrite");
585 
586  return 0;
587 }
588 
589 /*?
590  * Layer 2-Rewrite node uses classify tables to match packets. Then, using
591  * the provisioned mask and value, modfies the packet header.
592  *
593  * @cliexpar
594  * @todo This is incomplete. This needs a detailed description and a
595  * practical example.
596 ?*/
597 /* *INDENT-OFF* */
599  .path = "set bridge-domain rewrite",
600  .short_help =
601  "set bridge-domain rewrite <bridge-domain> [disable]",
602  .function = l2_rw_set_cli_fn,
603 };
604 /* *INDENT-ON* */
605 
606 static clib_error_t *
608 {
609  l2_rw_main_t *rw = &l2_rw_main;
610  rw->configs = 0;
611  rw->entries = 0;
614  l2_rw_node.index,
618  return 0;
619 }
620 
622 
623 enum
624 {
627 };
628 
629 #define foreach_l2_rw_error \
630 _(UNKNOWN, "Unknown error")
631 
632 typedef enum
633 {
634 #define _(sym,str) L2_RW_ERROR_##sym,
636 #undef _
638 } l2_rw_error_t;
639 
640 static char *l2_rw_error_strings[] = {
641 #define _(sym,string) string,
643 #undef _
644 };
645 
646 /* *INDENT-OFF* */
648  .name = "l2-rw",
649  .vector_size = sizeof (u32),
650  .format_trace = format_l2_rw_trace,
652  .n_errors = ARRAY_LEN(l2_rw_error_strings),
653  .error_strings = l2_rw_error_strings,
654  .runtime_data_bytes = 0,
655  .n_next_nodes = L2_RW_N_NEXT,
656  .next_nodes = { [L2_RW_NEXT_DROP] = "error-drop"},
657 };
658 /* *INDENT-ON* */
659 
660 /*
661  * fd.io coding-style-patch-verification: ON
662  *
663  * Local Variables:
664  * eval: (c-set-style "gnu")
665  * End:
666  */
vlib.h
l2_rw_main_t::configs_bitmap
uword * configs_bitmap
Definition: l2_rw.h:58
vnet_classify_entry_t
struct _vnet_classify_entry vnet_classify_entry_t
l2_rw_set_cli_fn
static clib_error_t * l2_rw_set_cli_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_rw.c:565
l2_rw_mod_entry
int l2_rw_mod_entry(u32 *index, u8 *mask, u8 *value, u32 len, u32 skip, u8 is_del)
Definition: l2_rw.c:310
vlib_prefetch_buffer_header
#define vlib_prefetch_buffer_header(b, type)
Prefetch buffer metadata.
Definition: buffer.h:231
frame
vlib_main_t vlib_node_runtime_t vlib_frame_t * frame
Definition: nat44_ei.c:3048
l2_rw_interface_cli_fn
static clib_error_t * l2_rw_interface_cli_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_rw.c:434
clib_memcpy
#define clib_memcpy(d, s, n)
Definition: string.h:197
l2_rw_entry_cli_fn
static clib_error_t * l2_rw_entry_cli_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_rw.c:357
next_index
nat44_ei_hairpin_src_next_t next_index
Definition: nat44_ei_hairpinning.c:412
vlib_get_buffer
static vlib_buffer_t * vlib_get_buffer(vlib_main_t *vm, u32 buffer_index)
Translate buffer index into buffer pointer.
Definition: buffer_funcs.h:111
l2_rw_trace_t::classify_table_index
u32 classify_table_index
Definition: l2_rw.c:37
l2_rw_show_entries_cli
static vlib_cli_command_t l2_rw_show_entries_cli
(constructor) VLIB_CLI_COMMAND (l2_rw_show_entries_cli)
Definition: l2_rw.c:548
pool_elt_at_index
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:549
l2_rw_rewrite
static_always_inline void l2_rw_rewrite(l2_rw_entry_t *rwe, u8 *h)
Definition: l2_rw.c:93
l2_rw_show_interfaces_cli
static vlib_cli_command_t l2_rw_show_interfaces_cli
(constructor) VLIB_CLI_COMMAND (l2_rw_show_interfaces_cli)
Definition: l2_rw.c:514
VLIB_NODE_TYPE_INTERNAL
@ VLIB_NODE_TYPE_INTERNAL
Definition: node.h:72
format_hex_bytes
u8 * format_hex_bytes(u8 *s, va_list *va)
Definition: std-formats.c:84
node
vlib_main_t vlib_node_runtime_t * node
Definition: nat44_ei.c:3047
vnet_classify_main
vnet_classify_main_t vnet_classify_main
Definition: vnet_classify.c:32
clib_error_return
#define clib_error_return(e, args...)
Definition: error.h:99
vlib_cli_command_t::path
char * path
Definition: cli.h:96
l2_rw.h
l2input_set_bridge_features
u32 l2input_set_bridge_features(u32 bd_index, u32 feat_mask, u32 feat_value)
Definition: l2_input.c:191
pool_put
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:305
vm
vlib_main_t * vm
X-connect all packets from the HOST to the PHY.
Definition: nat44_ei.c:3047
l2_rw_main_t
Definition: l2_rw.h:48
VLIB_RX
@ VLIB_RX
Definition: defs.h:46
format_l2_rw_trace
static u8 * format_l2_rw_trace(u8 *s, va_list *args)
Definition: l2_rw.c:67
unformat_input_t
struct _unformat_input_t unformat_input_t
vlib_frame_t
Definition: node.h:372
clib_bitmap_alloc
#define clib_bitmap_alloc(v, n_bits)
Allocate a bitmap with the supplied number of bits.
Definition: bitmap.h:109
vnet_classify_find_entry
vnet_classify_entry_t * vnet_classify_find_entry(vnet_classify_table_t *t, u8 *h, u64 hash, f64 now)
Definition: vnet_classify.c:656
l2_rw_main_t::feat_next_node_index
u32 feat_next_node_index[32]
Definition: l2_rw.h:51
h
h
Definition: flowhash_template.h:372
l2_rw_error_t
l2_rw_error_t
Definition: l2_rw.c:632
unformat
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
pool_is_free_index
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:302
L2_RW_N_ERROR
@ L2_RW_N_ERROR
Definition: l2_rw.c:637
vec_alloc_aligned
#define vec_alloc_aligned(V, N, A)
Allocate space for N more elements (no header, given alignment)
Definition: vec.h:343
pool_foreach
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:534
l2_rw_show_interfaces_cli_fn
static clib_error_t * l2_rw_show_interfaces_cli_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_rw.c:488
l2_rw_main
l2_rw_main_t l2_rw_main
Definition: l2_rw.c:31
vec_len
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
Definition: vec_bootstrap.h:142
clib_bitmap_get
static uword clib_bitmap_get(uword *ai, uword i)
Gets the ith bit value from a bitmap.
Definition: bitmap.h:197
len
u8 len
Definition: ip_types.api:103
VLIB_NODE_FN
#define VLIB_NODE_FN(node)
Definition: node.h:202
l2_rw_trace_t
Definition: l2_rw.c:34
CLIB_UNUSED
#define CLIB_UNUSED(x)
Definition: clib.h:90
vnet_buffer
#define vnet_buffer(b)
Definition: buffer.h:441
vnet_get_main
vnet_main_t * vnet_get_main(void)
Definition: pnat_test_stubs.h:56
l2_rw_show_entries_cli_fn
static clib_error_t * l2_rw_show_entries_cli_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_rw.c:523
clib_bitmap_count_set_bits
static uword clib_bitmap_count_set_bits(uword *ai)
Return the number of set bits in a bitmap.
Definition: bitmap.h:449
L2_RW_NEXT_DROP
@ L2_RW_NEXT_DROP
Definition: l2_rw.c:625
PREDICT_FALSE
#define PREDICT_FALSE(x)
Definition: clib.h:124
ARRAY_LEN
#define ARRAY_LEN(x)
Definition: clib.h:70
vlib_frame_vector_args
static void * vlib_frame_vector_args(vlib_frame_t *f)
Get pointer to frame vector data.
Definition: node_funcs.h:301
unformat_check_input
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:163
c
svmdb_client_t * c
Definition: vpp_get_metrics.c:48
static_always_inline
#define static_always_inline
Definition: clib.h:112
l2_rw_set_cli
static vlib_cli_command_t l2_rw_set_cli
(constructor) VLIB_CLI_COMMAND (l2_rw_set_cli)
Definition: l2_rw.c:598
uword
u64 uword
Definition: types.h:112
ethernet_header_t
Definition: packet.h:52
l2_rw_main_t::entries
l2_rw_entry_t * entries
Definition: l2_rw.h:54
l2input_intf_bitmap_enable
u32 l2input_intf_bitmap_enable(u32 sw_if_index, l2input_feat_masks_t feature_bitmap, u32 enable)
Enable (or disable) the feature in the bitmap for the given interface.
Definition: l2_input.c:177
l2input_get_feat_names
char ** l2input_get_feat_names(void)
Return an array of strings containing graph node names of each feature.
Definition: l2_input.c:59
l2_rw_interface_set_table
int l2_rw_interface_set_table(u32 sw_if_index, u32 table_index, u32 miss_index)
Definition: l2_rw.c:415
l2_rw_node
vlib_node_registration_t l2_rw_node
(constructor) VLIB_REGISTER_NODE (l2_rw_node)
Definition: l2_rw.c:647
f64
double f64
Definition: types.h:142
mask
vl_api_pnat_mask_t mask
Definition: pnat.api:45
format_unformat_error
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
pool_get
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:255
vec_validate
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment)
Definition: vec.h:523
VLIB_CLI_COMMAND
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:163
clib_bitmap_set
static uword * clib_bitmap_set(uword *ai, uword i, uword value)
Sets the ith bit of a bitmap to new_value Removes trailing zeros from the bitmap.
Definition: bitmap.h:167
L2INPUT_N_FEAT
@ L2INPUT_N_FEAT
Definition: l2_input.h:165
vnet_classify_table_t
Definition: vnet_classify.h:147
vlib_node_registration_t
struct _vlib_node_registration vlib_node_registration_t
vlib_cli_output
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:716
unformat_hex_string
unformat_function_t unformat_hex_string
Definition: format.h:281
vnet_l2_feature_next
static u32 vnet_l2_feature_next(vlib_buffer_t *b, u32 *next_nodes, u32 feat_bit)
Return the graph node index for the feature corresponding to the next set bit after clearing the curr...
Definition: feat_bitmap.h:94
vnet_classify_table_t::next_table_index
u32 next_table_index
Definition: vnet_classify.h:167
vnet_main_t
Definition: vnet.h:76
vlib_validate_buffer_enqueue_x1
#define vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next, n_left_to_next, bi0, next0)
Finish enqueueing one buffer forward in the graph.
Definition: buffer_node.h:224
index
u32 index
Definition: flow_types.api:221
always_inline
#define always_inline
Definition: rdma_mlx5dv.h:23
l2_rw_trace_t::rewrite_entry_index
u32 rewrite_entry_index
Definition: l2_rw.c:38
u64
unsigned long u64
Definition: types.h:89
unformat_vnet_sw_interface
unformat_function_t unformat_vnet_sw_interface
Definition: interface_funcs.h:462
format
description fragment has unexpected format
Definition: map.api:433
vlib_put_next_frame
vlib_put_next_frame(vm, node, next_index, 0)
u32
unsigned int u32
Definition: types.h:88
VLIB_INIT_FUNCTION
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:172
l2_rw_enable_disable
static int l2_rw_enable_disable(u32 bridge_domain, u8 disable)
Definition: l2_rw.c:557
l2_rw_main_t::configs
l2_rw_config_t * configs
Definition: l2_rw.h:57
l2_rw_interface_cli
static vlib_cli_command_t l2_rw_interface_cli
(constructor) VLIB_CLI_COMMAND (l2_rw_interface_cli)
Definition: l2_rw.c:479
u32x4
unsigned long long u32x4
Definition: ixge.c:28
vnet_classify_main_t
struct _vnet_classify_main vnet_classify_main_t
Definition: vnet_classify.h:61
pool_elts
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:127
value
u8 value
Definition: qos.api:54
vnet_classify_hash_packet
u64 vnet_classify_hash_packet(vnet_classify_table_t *t, u8 *h)
vnet_classify.h
l2_rw_entry_cli
static vlib_cli_command_t l2_rw_entry_cli
(constructor) VLIB_CLI_COMMAND (l2_rw_entry_cli)
Definition: l2_rw.c:405
format_l2_rw_entry
static u8 * format_l2_rw_entry(u8 *s, va_list *args)
Definition: l2_rw.c:42
now
f64 now
Definition: nat44_ei_out2in.c:710
L2_RW_N_NEXT
@ L2_RW_N_NEXT
Definition: l2_rw.c:626
clib_memset
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
vlib_main_t
Definition: main.h:102
vlib_node_t
Definition: node.h:247
vlib_add_trace
void * vlib_add_trace(vlib_main_t *vm, vlib_node_runtime_t *r, vlib_buffer_t *b, u32 n_data_bytes)
Definition: trace.c:628
vlib_get_main
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:38
u8
unsigned char u8
Definition: types.h:56
clib_error_t
Definition: clib_error.h:21
vlib_buffer_get_current
static void * vlib_buffer_get_current(vlib_buffer_t *b)
Get pointer to current data to process.
Definition: buffer.h:257
feat_bitmap.h
vlib_init_function_t
clib_error_t *() vlib_init_function_t(struct vlib_main_t *vm)
Definition: init.h:51
i
int i
Definition: flowhash_template.h:376
l2_rw_trace_t::sw_if_index
u32 sw_if_index
Definition: l2_rw.c:36
vlib_validate_buffer_enqueue_x2
#define vlib_validate_buffer_enqueue_x2(vm, node, next_index, to_next, n_left_to_next, bi0, bi1, next0, next1)
Finish enqueueing two buffers forward in the graph.
Definition: buffer_node.h:70
l2_rw_get_config
static l2_rw_config_t * l2_rw_get_config(u32 sw_if_index)
Definition: l2_rw.c:78
vlib_time_now
static f64 vlib_time_now(vlib_main_t *vm)
Definition: main.h:327
clib_bitmap_foreach
#define clib_bitmap_foreach(i, ai)
Macro to iterate across set bits in a bitmap.
Definition: bitmap.h:361
vlib_node_runtime_t
Definition: node.h:454
vlib_cli_command_t
Definition: cli.h:92
from
from
Definition: nat44_ei_hairpinning.c:415
sw_if_index
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
vlib_get_next_frame
#define vlib_get_next_frame(vm, node, next_index, vectors, n_vectors_left)
Get pointer to next frame vector data by (vlib_node_runtime_t, next_index).
Definition: node_funcs.h:395
n_left_from
n_left_from
Definition: nat44_ei_hairpinning.c:416
feat_bitmap_init_next_nodes
static void feat_bitmap_init_next_nodes(vlib_main_t *vm, u32 node_index, u32 num_features, char **feat_names, u32 *next_nodes)
Initialize the feature next-node indexes of a graph node.
Definition: feat_bitmap.h:43
type
vl_api_fib_path_type_t type
Definition: fib_types.api:123
l2_rw_init
static clib_error_t * l2_rw_init(vlib_main_t *vm)
Definition: l2_rw.c:607
vlib_prefetch_buffer_data
#define vlib_prefetch_buffer_data(b, type)
Definition: buffer.h:232
UNFORMAT_END_OF_INPUT
#define UNFORMAT_END_OF_INPUT
Definition: format.h:137
format_l2_rw_config
static u8 * format_l2_rw_config(u8 *s, va_list *args)
Definition: l2_rw.c:58
vlib_buffer_t::flags
u32 flags
buffer flags: VLIB_BUFFER_FREE_LIST_INDEX_MASK: bits used to store free list index,...
Definition: buffer.h:133
l2_rw_error_strings
static char * l2_rw_error_strings[]
Definition: l2_rw.c:640
vlib_buffer_t
VLIB buffer representation.
Definition: buffer.h:111
foreach_l2_rw_error
#define foreach_l2_rw_error
Definition: l2_rw.c:629
VLIB_REGISTER_NODE
#define VLIB_REGISTER_NODE(x,...)
Definition: node.h:169