FD.io VPP  v17.04.2-2-ga8f93f8
Vector Packet Processing
sr_steering.c
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1 /*
2  * sr_steering.c: ipv6 segment routing steering into SR policy
3  *
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:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
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.
16  */
17 
18 /**
19  * @file
20  * @brief Packet steering into SR Policies
21  *
22  * This file is in charge of handling the FIB appropiatly to steer packets
23  * through SR Policies as defined in 'sr_policy_rewrite.c'. Notice that here
24  * we are only doing steering. SR policy application is done in
25  * sr_policy_rewrite.c
26  *
27  * Supports:
28  * - Steering of IPv6 traffic Destination Address based
29  * - Steering of IPv4 traffic Destination Address based
30  * - Steering of L2 frames, interface based (sw interface)
31  */
32 
33 #include <vlib/vlib.h>
34 #include <vnet/vnet.h>
35 #include <vnet/sr/sr.h>
36 #include <vnet/ip/ip.h>
37 #include <vnet/sr/sr_packet.h>
38 #include <vnet/ip/ip6_packet.h>
39 #include <vnet/fib/ip6_fib.h>
40 #include <vnet/dpo/dpo.h>
41 
42 #include <vppinfra/error.h>
43 #include <vppinfra/elog.h>
44 
45 /**
46  * @brief Steer traffic L2 and L3 traffic through a given SR policy
47  *
48  * @param is_del
49  * @param bsid is the bindingSID of the SR Policy (alt to sr_policy_index)
50  * @param sr_policy is the index of the SR Policy (alt to bsid)
51  * @param table_id is the VRF where to install the FIB entry for the BSID
52  * @param prefix is the IPv4/v6 address for L3 traffic type
53  * @param mask_width is the mask for L3 traffic type
54  * @param sw_if_index is the incoming interface for L2 traffic
55  * @param traffic_type describes the type of traffic
56  *
57  * @return 0 if correct, else error
58  */
59 int
60 sr_steering_policy (int is_del, ip6_address_t * bsid, u32 sr_policy_index,
61  u32 table_id, ip46_address_t * prefix, u32 mask_width,
62  u32 sw_if_index, u8 traffic_type)
63 {
64  ip6_sr_main_t *sm = &sr_main;
66  ip6_sr_steering_policy_t *steer_pl;
67  fib_prefix_t pfx = { 0 };
68 
69  ip6_sr_policy_t *sr_policy = 0;
70  uword *p = 0;
71 
72  memset (&key, 0, sizeof (sr_steering_key_t));
73 
74  /* Compute the steer policy key */
75  if (traffic_type == SR_STEER_IPV4 || traffic_type == SR_STEER_IPV6)
76  {
77  key.l3.prefix.as_u64[0] = prefix->as_u64[0];
78  key.l3.prefix.as_u64[1] = prefix->as_u64[1];
79  key.l3.mask_width = mask_width;
80  key.l3.fib_table = (table_id != (u32) ~ 0 ? table_id : 0);
81  }
82  else if (traffic_type == SR_STEER_L2)
83  {
84  key.l2.sw_if_index = sw_if_index;
85 
86  /* Sanitise the SW_IF_INDEX */
88  sw_if_index))
89  return -3;
90 
92  vnet_get_sw_interface (sm->vnet_main, sw_if_index);
94  return -3;
95  }
96  else
97  return -1;
98 
99  key.traffic_type = traffic_type;
100 
101  /* Search for the item */
102  p = mhash_get (&sm->sr_steer_policies_hash, &key);
103 
104  if (p)
105  {
106  /* Retrieve Steer Policy function */
107  steer_pl = pool_elt_at_index (sm->steer_policies, p[0]);
108 
109  if (is_del)
110  {
111  if (steer_pl->classify.traffic_type == SR_STEER_IPV6)
112  {
113  /* Remove FIB entry */
115  pfx.fp_len = steer_pl->classify.l3.mask_width;
116  pfx.fp_addr.ip6 = steer_pl->classify.l3.prefix.ip6;
117 
120  steer_pl->classify.l3.fib_table), &pfx,
121  FIB_SOURCE_SR);
122  }
123  else if (steer_pl->classify.traffic_type == SR_STEER_IPV4)
124  {
125  /* Remove FIB entry */
127  pfx.fp_len = steer_pl->classify.l3.mask_width;
128  pfx.fp_addr.ip4 = steer_pl->classify.l3.prefix.ip4;
129 
132  steer_pl->classify.l3.fib_table), &pfx,
133  FIB_SOURCE_SR);
134  }
135  else if (steer_pl->classify.traffic_type == SR_STEER_L2)
136  {
137  /* Remove HW redirection */
138  vnet_feature_enable_disable ("device-input",
139  "sr-policy-rewrite-encaps-l2",
140  sw_if_index, 0, 0, 0);
141  sm->sw_iface_sr_policies[sw_if_index] = ~(u32) 0;
142 
143  /* Remove promiscous mode from interface */
144  vnet_main_t *vnm = vnet_get_main ();
146  ethernet_interface_t *eif =
147  ethernet_get_interface (em, sw_if_index);
148 
149  if (!eif)
150  goto cleanup_error_redirection;
151 
152  ethernet_set_flags (vnm, sw_if_index, 0);
153  }
154 
155  /* Delete SR steering policy entry */
156  pool_put (sm->steer_policies, steer_pl);
158 
159  /* If no more SR policies or steering policies */
160  if (!pool_elts (sm->sr_policies) && !pool_elts (sm->steer_policies))
161  {
164  sm->fib_table_ip6 = (u32) ~ 0;
165  sm->fib_table_ip4 = (u32) ~ 0;
166  }
167 
168  return 1;
169  }
170  else /* It means user requested to update an existing SR steering policy */
171  {
172  /* Retrieve SR steering policy */
173  if (bsid)
174  {
175  p = mhash_get (&sm->sr_policies_index_hash, bsid);
176  if (p)
177  sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
178  else
179  return -2;
180  }
181  else
182  sr_policy = pool_elt_at_index (sm->sr_policies, sr_policy_index);
183 
184  if (!sr_policy)
185  return -2;
186 
187  steer_pl->sr_policy = sr_policy - sm->sr_policies;
188 
189  /* Remove old FIB/hw redirection and create a new one */
190  if (steer_pl->classify.traffic_type == SR_STEER_IPV6)
191  {
192  /* Remove FIB entry */
194  pfx.fp_len = steer_pl->classify.l3.mask_width;
195  pfx.fp_addr.ip6 = steer_pl->classify.l3.prefix.ip6;
196 
199  steer_pl->classify.l3.fib_table), &pfx,
200  FIB_SOURCE_SR);
201 
202  /* Create a new one */
203  goto update_fib;
204  }
205  else if (steer_pl->classify.traffic_type == SR_STEER_IPV4)
206  {
207  /* Remove FIB entry */
209  pfx.fp_len = steer_pl->classify.l3.mask_width;
210  pfx.fp_addr.ip4 = steer_pl->classify.l3.prefix.ip4;
211 
214  steer_pl->classify.l3.fib_table), &pfx,
215  FIB_SOURCE_SR);
216 
217  /* Create a new one */
218  goto update_fib;
219  }
220  else if (steer_pl->classify.traffic_type == SR_STEER_L2)
221  {
222  /* Update L2-HW redirection */
223  goto update_fib;
224  }
225  }
226  }
227  else
228  /* delete; steering policy does not exist; complain */
229  if (is_del)
230  return -4;
231 
232  /* Retrieve SR policy */
233  if (bsid)
234  {
235  p = mhash_get (&sm->sr_policies_index_hash, bsid);
236  if (p)
237  sr_policy = pool_elt_at_index (sm->sr_policies, p[0]);
238  else
239  return -2;
240  }
241  else
242  sr_policy = pool_elt_at_index (sm->sr_policies, sr_policy_index);
243 
244  /* Create a new steering policy */
245  pool_get (sm->steer_policies, steer_pl);
246  memset (steer_pl, 0, sizeof (*steer_pl));
247 
248  if (traffic_type == SR_STEER_IPV4 || traffic_type == SR_STEER_IPV6)
249  {
250  clib_memcpy (&steer_pl->classify.l3.prefix, prefix,
251  sizeof (ip46_address_t));
252  steer_pl->classify.l3.mask_width = mask_width;
253  steer_pl->classify.l3.fib_table =
254  (table_id != (u32) ~ 0 ? table_id : 0);
255  steer_pl->classify.traffic_type = traffic_type;
256  }
257  else if (traffic_type == SR_STEER_L2)
258  {
259  steer_pl->classify.l2.sw_if_index = sw_if_index;
260  steer_pl->classify.traffic_type = traffic_type;
261  }
262  else
263  {
264  /* Incorrect API usage. Should never get here */
265  pool_put (sm->steer_policies, steer_pl);
267  return -1;
268  }
269  steer_pl->sr_policy = sr_policy - sm->sr_policies;
270 
271  /* Create and store key */
272  mhash_set (&sm->sr_steer_policies_hash, &key, steer_pl - sm->steer_policies,
273  NULL);
274 
275  if (traffic_type == SR_STEER_L2)
276  {
277  if (!sr_policy->is_encap)
278  goto cleanup_error_encap;
279 
281  ("device-input", "sr-pl-rewrite-encaps-l2", sw_if_index, 1, 0, 0))
282  goto cleanup_error_redirection;
283 
284  /* Set promiscous mode on interface */
285  vnet_main_t *vnm = vnet_get_main ();
287  ethernet_interface_t *eif = ethernet_get_interface (em, sw_if_index);
288 
289  if (!eif)
290  goto cleanup_error_redirection;
291 
292  ethernet_set_flags (vnm, sw_if_index,
294  }
295  else if (traffic_type == SR_STEER_IPV4)
296  if (!sr_policy->is_encap)
297  goto cleanup_error_encap;
298 
299 update_fib:
300  /* FIB API calls - Recursive route through the BindingSID */
301  if (traffic_type == SR_STEER_IPV6)
302  {
304  pfx.fp_len = steer_pl->classify.l3.mask_width;
305  pfx.fp_addr.ip6 = steer_pl->classify.l3.prefix.ip6;
306 
308  (table_id !=
309  (u32) ~ 0 ?
310  table_id : 0)),
311  &pfx, FIB_SOURCE_SR,
314  (ip46_address_t *) & sr_policy->bsid, ~0,
315  sm->fib_table_ip6, 1, NULL,
317  }
318  else if (traffic_type == SR_STEER_IPV4)
319  {
321  pfx.fp_len = steer_pl->classify.l3.mask_width;
322  pfx.fp_addr.ip4 = steer_pl->classify.l3.prefix.ip4;
323 
325  (table_id !=
326  (u32) ~ 0 ?
327  table_id : 0)),
328  &pfx, FIB_SOURCE_SR,
331  (ip46_address_t *) & sr_policy->bsid, ~0,
332  sm->fib_table_ip4, 1, NULL,
334  }
335  else if (traffic_type == SR_STEER_L2)
336  {
337  if (sw_if_index < vec_len (sm->sw_iface_sr_policies))
338  sm->sw_iface_sr_policies[sw_if_index] = steer_pl->sr_policy;
339  else
340  {
343  - vec_len (sm->sw_iface_sr_policies)));
344  sm->sw_iface_sr_policies[sw_if_index] = steer_pl->sr_policy;
345  }
346  }
347 
348  return 0;
349 
350 cleanup_error_encap:
351  pool_put (sm->steer_policies, steer_pl);
353  return -5;
354 
355 cleanup_error_redirection:
356  pool_put (sm->steer_policies, steer_pl);
358  return -3;
359 }
360 
361 static clib_error_t *
363  vlib_cli_command_t * cmd)
364 {
365  vnet_main_t *vnm = vnet_get_main ();
366 
367  int is_del = 0;
368 
369  ip46_address_t prefix;
370  u32 dst_mask_width = 0;
371  u32 sw_if_index = (u32) ~ 0;
372  u8 traffic_type = 0;
373  u32 fib_table = (u32) ~ 0;
374 
375  ip6_address_t bsid;
376  u32 sr_policy_index = (u32) ~ 0;
377 
378  u8 sr_policy_set = 0;
379 
380  memset (&prefix, 0, sizeof (ip46_address_t));
381 
382  int rv;
384  {
385  if (unformat (input, "del"))
386  is_del = 1;
387  else if (!traffic_type
388  && unformat (input, "l3 %U/%d", unformat_ip6_address,
389  &prefix.ip6, &dst_mask_width))
390  traffic_type = SR_STEER_IPV6;
391  else if (!traffic_type
392  && unformat (input, "l3 %U/%d", unformat_ip4_address,
393  &prefix.ip4, &dst_mask_width))
394  traffic_type = SR_STEER_IPV4;
395  else if (!traffic_type
396  && unformat (input, "l2 %U", unformat_vnet_sw_interface, vnm,
397  &sw_if_index))
398  traffic_type = SR_STEER_L2;
399  else if (!sr_policy_set
400  && unformat (input, "via sr policy index %d",
401  &sr_policy_index))
402  sr_policy_set = 1;
403  else if (!sr_policy_set
404  && unformat (input, "via sr policy bsid %U",
405  unformat_ip6_address, &bsid))
406  sr_policy_set = 1;
407  else if (fib_table == (u32) ~ 0
408  && unformat (input, "fib-table %d", &fib_table));
409  else
410  break;
411  }
412 
413  if (!traffic_type)
414  return clib_error_return (0, "No L2/L3 traffic specified");
415  if (!sr_policy_set)
416  return clib_error_return (0, "No SR policy specified");
417 
418  /* Make sure that the prefixes are clean */
419  if (traffic_type == SR_STEER_IPV4)
420  {
421  u32 mask =
422  (dst_mask_width ? (0xFFFFFFFFu >> (32 - dst_mask_width)) : 0);
423  prefix.ip4.as_u32 &= mask;
424  }
425  else if (traffic_type == SR_STEER_IPV6)
426  {
427  ip6_address_t mask;
428  ip6_address_mask_from_width (&mask, dst_mask_width);
429  ip6_address_mask (&prefix.ip6, &mask);
430  }
431 
432  rv =
433  sr_steering_policy (is_del, (sr_policy_index == ~(u32) 0 ? &bsid : NULL),
434  sr_policy_index, fib_table, &prefix, dst_mask_width,
435  sw_if_index, traffic_type);
436 
437  switch (rv)
438  {
439  case 0:
440  break;
441  case 1:
442  return 0;
443  case -1:
444  return clib_error_return (0, "Incorrect API usage.");
445  case -2:
446  return clib_error_return (0,
447  "The requested SR policy could not be located. Review the BSID/index.");
448  case -3:
449  return clib_error_return (0,
450  "Unable to do SW redirect. Incorrect interface.");
451  case -4:
452  return clib_error_return (0,
453  "The requested SR steering policy could not be deleted.");
454  case -5:
455  return clib_error_return (0,
456  "The SR policy is not an encapsulation one.");
457  default:
458  return clib_error_return (0, "BUG: sr steer policy returns %d", rv);
459  }
460  return 0;
461 }
462 
463 /* *INDENT-OFF* */
464 VLIB_CLI_COMMAND (sr_steer_policy_command, static) = {
465  .path = "sr steer",
466  .short_help = "sr steer (del) [l3 <ip_addr/mask>|l2 <sf_if>]"
467  "via sr policy [index <sr_policy_index>|bsid <bsid_ip6_addr>]"
468  "(fib-table <fib_table_index>)",
469  .long_help =
470  "\tSteer a L2 or L3 traffic through an existing SR policy.\n"
471  "\tExamples:\n"
472  "\t\tsr steer l3 2001::/64 via sr_policy index 5\n"
473  "\t\tsr steer l3 2001::/64 via sr_policy bsid 2010::9999:1\n"
474  "\t\tsr steer l2 GigabitEthernet0/5/0 via sr_policy index 5\n"
475  "\t\tsr steer del l3 2001::/64 via sr_policy index 5\n",
476  .function = sr_steer_policy_command_fn,
477 };
478 /* *INDENT-ON* */
479 
480 static clib_error_t *
482  unformat_input_t * input,
483  vlib_cli_command_t * cmd)
484 {
485  ip6_sr_main_t *sm = &sr_main;
486  ip6_sr_steering_policy_t **steer_policies = 0;
487  ip6_sr_steering_policy_t *steer_pl;
488 
489  vnet_main_t *vnm = vnet_get_main ();
490 
491  ip6_sr_policy_t *pl = 0;
492  int i;
493 
494  vlib_cli_output (vm, "SR steering policies:");
495  /* *INDENT-OFF* */
496  pool_foreach (steer_pl, sm->steer_policies, ({vec_add1(steer_policies, steer_pl);}));
497  /* *INDENT-ON* */
498  vlib_cli_output (vm, "Traffic\t\tSR policy BSID");
499  for (i = 0; i < vec_len (steer_policies); i++)
500  {
501  steer_pl = steer_policies[i];
502  pl = pool_elt_at_index (sm->sr_policies, steer_pl->sr_policy);
503  if (steer_pl->classify.traffic_type == SR_STEER_L2)
504  {
505  vlib_cli_output (vm, "L2 %U\t%U",
507  steer_pl->classify.l2.sw_if_index,
508  format_ip6_address, &pl->bsid);
509  }
510  else if (steer_pl->classify.traffic_type == SR_STEER_IPV4)
511  {
512  vlib_cli_output (vm, "L3 %U/%d\t%U",
514  &steer_pl->classify.l3.prefix.ip4,
515  steer_pl->classify.l3.mask_width,
516  format_ip6_address, &pl->bsid);
517  }
518  else if (steer_pl->classify.traffic_type == SR_STEER_IPV6)
519  {
520  vlib_cli_output (vm, "L3 %U/%d\t%U",
522  &steer_pl->classify.l3.prefix.ip6,
523  steer_pl->classify.l3.mask_width,
524  format_ip6_address, &pl->bsid);
525  }
526  }
527  return 0;
528 }
529 
530 /* *INDENT-OFF* */
531 VLIB_CLI_COMMAND (show_sr_steering_policies_command, static) = {
532  .path = "show sr steering policies",
533  .short_help = "show sr steering policies",
535 };
536 /* *INDENT-ON* */
537 
538 clib_error_t *
540 {
541  ip6_sr_main_t *sm = &sr_main;
542 
543  /* Init memory for function keys */
544  mhash_init (&sm->sr_steer_policies_hash, sizeof (uword),
545  sizeof (sr_steering_key_t));
546 
547  sm->sw_iface_sr_policies = 0;
548 
549  sm->vnet_main = vnet_get_main ();
550 
551  return 0;
552 }
553 
554 /* *INDENT-OFF* */
556 /* *INDENT-ON* */
557 
558 /* *INDENT-OFF* */
559 VNET_FEATURE_INIT (sr_pl_rewrite_encaps_l2, static) =
560 {
561  .arc_name = "device-input",
562  .node_name = "sr-pl-rewrite-encaps-l2",
563  .runs_before = VNET_FEATURES ("ethernet-input"),
564 };
565 /* *INDENT-ON* */
566 
567 /*
568 * fd.io coding-style-patch-verification: ON
569 *
570 * Local Variables:
571 * eval: (c-set-style "gnu")
572 * End:
573 */
static void ip6_address_mask(ip6_address_t *a, ip6_address_t *mask)
Definition: ip6_packet.h:235
u32 fib_table_id_find_fib_index(fib_protocol_t proto, u32 table_id)
Definition: lookup.c:360
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:169
ip6_sr_main_t sr_main
Definition: sr.c:31
sll srl srl sll sra u16x4 i
Definition: vector_sse2.h:343
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
vnet_interface_main_t interface_main
Definition: vnet.h:57
static clib_error_t * sr_steer_policy_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: sr_steering.c:362
#define NULL
Definition: clib.h:55
uword mhash_unset(mhash_t *h, void *key, uword *old_value)
Definition: mhash.c:353
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
unformat_function_t unformat_vnet_sw_interface
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:200
ip6_sr_steering_policy_t * steer_policies
Definition: sr.h:209
format_function_t format_vnet_sw_if_index_name
#define pool_len(p)
Number of elements in pool vector.
Definition: pool.h:121
static clib_error_t * show_sr_steering_policies_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: sr_steering.c:481
VNET_FEATURE_INIT(sr_pl_rewrite_encaps_l2, static)
u32 * sw_iface_sr_policies
Definition: sr.h:215
Definition: fib_entry.h:234
ethernet_main_t ethernet_main
Definition: ethernet.h:273
format_function_t format_ip4_address
Definition: format.h:79
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:376
unformat_function_t unformat_ip4_address
Definition: format.h:76
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:111
Aggregrate type for a prefix.
Definition: fib_types.h:160
#define clib_error_return(e, args...)
Definition: error.h:111
#define vec_resize(V, N)
Resize a vector (no header, unspecified alignment) Add N elements to end of given vector V...
Definition: vec.h:241
u16 fp_len
The mask length.
Definition: fib_types.h:164
fib_node_index_t fib_table_entry_path_add(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source, fib_entry_flag_t flags, fib_protocol_t next_hop_proto, const ip46_address_t *next_hop, u32 next_hop_sw_if_index, u32 next_hop_fib_index, u32 next_hop_weight, mpls_label_t *next_hop_labels, fib_route_path_flags_t path_flags)
Add one path to an entry (aka route) in the FIB.
Definition: fib_table.c:477
void fib_table_unlock(u32 fib_index, fib_protocol_t proto)
Take a reference counting lock on the table.
Definition: fib_table.c:1058
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:397
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:183
struct _unformat_input_t unformat_input_t
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:241
sr_steering_key_t classify
Traffic classification.
Definition: sr.h:181
static uword mhash_set(mhash_t *h, void *key, uword new_value, uword *old_value)
Definition: mhash.h:117
u8 is_encap
Mode (0 is SRH insert, 1 Encaps)
Definition: sr.h:95
u32 sr_policy
SR Policy index.
Definition: sr.h:182
unformat_function_t unformat_ip6_address
Definition: format.h:94
vnet_main_t * vnet_main
Definition: sr.h:236
#define UNFORMAT_END_OF_INPUT
Definition: format.h:143
void mhash_init(mhash_t *h, uword n_value_bytes, uword n_key_bytes)
Definition: mhash.c:168
format_function_t format_ip6_address
Definition: format.h:95
vlib_main_t * vm
Definition: buffer.c:276
void fib_table_entry_delete(u32 fib_index, const fib_prefix_t *prefix, fib_source_t source)
Delete a FIB entry.
Definition: fib_table.c:798
#define clib_memcpy(a, b, c)
Definition: string.h:69
#define ETHERNET_INTERFACE_FLAG_ACCEPT_ALL
Definition: ethernet.h:113
#define pool_is_free_index(P, I)
Use free bitmap to query whether given index is free.
Definition: pool.h:238
Steering db key.
Definition: sr.h:160
int sr_steering_policy(int is_del, ip6_address_t *bsid, u32 sr_policy_index, u32 table_id, ip46_address_t *prefix, u32 mask_width, u32 sw_if_index, u8 traffic_type)
Steer traffic L2 and L3 traffic through a given SR policy.
Definition: sr_steering.c:60
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:154
unsigned int u32
Definition: types.h:88
static uword * mhash_get(mhash_t *h, const void *key)
Definition: mhash.h:110
struct sr_steering_key_t::@213::@216 l2
#define SR_STEER_IPV6
Definition: sr.h:49
#define VNET_FEATURES(...)
Definition: feature.h:368
u64 uword
Definition: types.h:112
mhash_t sr_policies_index_hash
Definition: sr.h:200
clib_error_t * sr_steering_init(vlib_main_t *vm)
Definition: sr_steering.c:539
SRv6.
Definition: fib_entry.h:70
ethernet_interface_t * ethernet_get_interface(ethernet_main_t *em, u32 hw_if_index)
Definition: interface.c:672
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
ip6_sr_policy_t * sr_policies
Definition: sr.h:197
unsigned char u8
Definition: types.h:56
mhash_t sr_steer_policies_hash
Definition: sr.h:212
SR Policy.
Definition: sr.h:79
vnet_sw_interface_t * sw_interfaces
Definition: interface.h:617
#define SR_STEER_IPV4
Definition: sr.h:48
static void ip6_address_mask_from_width(ip6_address_t *a, u32 width)
Definition: ip6_packet.h:251
Segment Routing data structures definitions.
Segment Routing main datastructure.
Definition: sr.h:188
vnet_sw_interface_type_t type
Definition: interface.h:531
u8 traffic_type
Traffic type (IPv4, IPv6, L2)
Definition: sr.h:175
u32 fib_table_ip4
Definition: sr.h:232
struct sr_steering_key_t::@213::@215 l3
#define SR_STEER_L2
Definition: sr.h:47
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:577
u32 fib_table_ip6
Definition: sr.h:231
ip6_address_t bsid
BindingSID (key)
Definition: sr.h:83
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:971
int vnet_feature_enable_disable(const char *arc_name, const char *node_name, u32 sw_if_index, int enable_disable, void *feature_config, u32 n_feature_config_bytes)
Definition: feature.c:225
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:169
u32 ethernet_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:339
static uword pool_elts(void *v)
Number of active elements in a pool.
Definition: pool.h:109