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Vector Packet Processing
fib_types.h
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1  /*
2  * Copyright (c) 2016 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 #ifndef __FIB_TYPES_H__
17 #define __FIB_TYPES_H__
18 
19 #include <stdbool.h>
20 #include <vlib/vlib.h>
21 #include <vnet/ip/ip6_packet.h>
22 #include <vnet/mpls/packet.h>
23 #include <vnet/dpo/dpo.h>
24 #include <vnet/bier/bier_types.h>
25 
26 /**
27  * A typedef of a node index.
28  * we make this typedef so the code becomes easier for a human to parse.
29  */
31 #define FIB_NODE_INDEX_INVALID ((fib_node_index_t)(~0))
32 
33 /**
34  * Protocol Type. packed so it consumes a u8 only
35  */
36 typedef enum fib_protocol_t_ {
40 } __attribute__ ((packed)) fib_protocol_t;
41 
42 #define FIB_PROTOCOLS { \
43  [FIB_PROTOCOL_IP4] = "ipv4", \
44  [FIB_PROTOCOL_IP6] = "ipv6", \
45  [FIB_PROTOCOL_MPLS] = "MPLS", \
46 }
47 
48 /**
49  * Definition outside of enum so it does not need to be included in non-defaulted
50  * switch statements
51  */
52 #define FIB_PROTOCOL_MAX (FIB_PROTOCOL_MPLS + 1)
53 
54 /**
55  * Definition outside of enum so it does not need to be included in non-defaulted
56  * switch statements
57  */
58 #define FIB_PROTOCOL_IP_MAX (FIB_PROTOCOL_IP6 + 1)
59 
60 /**
61  * Not part of the enum so it does not have to be handled in switch statements
62  */
63 #define FIB_PROTOCOL_NONE (FIB_PROTOCOL_MAX+1)
64 
65 #define FOR_EACH_FIB_PROTOCOL(_item) \
66  for (_item = FIB_PROTOCOL_IP4; \
67  _item <= FIB_PROTOCOL_MPLS; \
68  _item++)
69 
70 #define FOR_EACH_FIB_IP_PROTOCOL(_item) \
71  for (_item = FIB_PROTOCOL_IP4; \
72  _item <= FIB_PROTOCOL_IP6; \
73  _item++)
74 
75 /**
76  * @brief Convert from boolean is_ip6 to FIB protocol.
77  * Drop MPLS on the floor in favor of IPv4.
78  */
79 static inline fib_protocol_t
80 fib_ip_proto(bool is_ip6)
81 {
82  return (is_ip6) ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4;
83 }
84 
85 /**
86  * @brief Convert from fib_protocol to ip46_type
87  */
88 extern ip46_type_t fib_proto_to_ip46(fib_protocol_t fproto);
89 
90 /**
91  * @brief Convert from ip46_type to fib_protocol
92  */
93 extern fib_protocol_t fib_proto_from_ip46(ip46_type_t iproto);
94 
95 /**
96  * @brief Convert from a protocol to a link type
97  */
98 vnet_link_t fib_proto_to_link (fib_protocol_t proto);
99 
100 /**
101  * FIB output chain type. When a child object requests a forwarding contribution
102  * from a parent, it does so for a particular scenario. This enumererates those
103  * sceanrios
104  */
106  /**
107  * Contribute an object that is to be used to forward IP4 packets
108  */
110  /**
111  * Contribute an object that is to be used to forward IP6 packets
112  */
114  /**
115  * Contribute an object that is to be used to forward non-end-of-stack
116  * MPLS packets
117  */
119  /**
120  * Contribute an object that is to be used to forward BIER packets.
121  */
123  /**
124  * Contribute an object that is to be used to forward end-of-stack
125  * MPLS packets. This is a convenient ID for clients. A real EOS chain
126  * must be pay-load protocol specific. This
127  * option is converted into one of the other three internally.
128  */
130  /**
131  * Contribute an object that is to be used to forward IP4 packets
132  */
134  /**
135  * Contribute an object that is to be used to forward IP6 packets
136  */
138  /**
139  * Contribute an object that is to be used to forward Ethernet packets.
140  */
142  /**
143  * Contribute an object that is to be used to forward NSH packets.
144  * This is last in the list since it is not valid for many FIB objects,
145  * and thus their array of per-chain-type DPOs can be sized smaller.
146  */
148 } __attribute__ ((packed)) fib_forward_chain_type_t;
149 
150 #define FIB_FORW_CHAINS { \
151  [FIB_FORW_CHAIN_TYPE_ETHERNET] = "ethernet", \
152  [FIB_FORW_CHAIN_TYPE_BIER] = "bier", \
153  [FIB_FORW_CHAIN_TYPE_UNICAST_IP4] = "unicast-ip4", \
154  [FIB_FORW_CHAIN_TYPE_UNICAST_IP6] = "unicast-ip6", \
155  [FIB_FORW_CHAIN_TYPE_MCAST_IP4] = "multicast-ip4", \
156  [FIB_FORW_CHAIN_TYPE_MCAST_IP6] = "multicast-ip6", \
157  [FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS] = "mpls-neos", \
158  [FIB_FORW_CHAIN_TYPE_MPLS_EOS] = "mpls-eos", \
159  [FIB_FORW_CHAIN_TYPE_NSH] = "nsh", \
160 }
161 
162 #define FIB_FORW_CHAIN_NUM (FIB_FORW_CHAIN_TYPE_NSH+1)
163 #define FIB_FORW_CHAIN_MPLS_NUM (FIB_FORW_CHAIN_TYPE_MPLS_EOS+1)
164 
165 #define FOR_EACH_FIB_FORW_CHAIN(_item) \
166  for (_item = FIB_FORW_CHAIN_TYPE_UNICAST_IP4; \
167  _item <= FIB_FORW_CHAIN_TYPE_NSH; \
168  _item++)
169 
170 #define FOR_EACH_FIB_FORW_MPLS_CHAIN(_item) \
171  for (_item = FIB_FORW_CHAIN_TYPE_UNICAST_IP4; \
172  _item <= FIB_FORW_CHAIN_TYPE_MPLS_EOS; \
173  _item++)
174 
175 /**
176  * @brief Convert from a chain type to the adjacency's link type
177  */
178 extern vnet_link_t fib_forw_chain_type_to_link_type(fib_forward_chain_type_t fct);
179 
180 /**
181  * @brief Convert from a adjacency's link type to chain type
182  */
183 extern fib_forward_chain_type_t fib_forw_chain_type_from_link_type(vnet_link_t lt);
184 
185 /**
186  * @brief Convert from a payload-protocol to a chain type.
187  */
188 extern fib_forward_chain_type_t fib_forw_chain_type_from_dpo_proto(dpo_proto_t proto);
189 
190 /**
191  * @brief Convert from a fib-protocol to a chain type.
192  */
193 extern fib_forward_chain_type_t fib_forw_chain_type_from_fib_proto(fib_protocol_t proto);
194 
195 /**
196  * @brief Convert from a chain type to the DPO proto it will install
197  */
198 extern dpo_proto_t fib_forw_chain_type_to_dpo_proto(fib_forward_chain_type_t fct);
199 
200 /**
201  * Aggregate type for a prefix
202  */
203 typedef struct fib_prefix_t_ {
204  /**
205  * The mask length
206  */
208 
209  /**
210  * protocol type
211  */
212  fib_protocol_t fp_proto;
213 
214  /**
215  * Pad to keep the address 4 byte aligned
216  */
217  u8 ___fp___pad;
218 
219  union {
220  /**
221  * The address type is not deriveable from the fp_addr member.
222  * If it's v4, then the first 3 u32s of the address will be 0.
223  * v6 addresses (even v4 mapped ones) have at least 2 u32s assigned
224  * to non-zero values. true. but when it's all zero, one cannot decide.
225  */
226  ip46_address_t fp_addr;
227 
228  struct {
231  /**
232  * This protocol determines the payload protocol of packets
233  * that will be forwarded by this entry once the label is popped.
234  * For a non-eos entry it will be MPLS.
235  */
237  };
238  };
239 } fib_prefix_t;
240 
242  "FIB Prefix's address is 4 byte aligned.");
243 
244 /**
245  * \brief Compare two prefixes for equality
246  */
247 extern int fib_prefix_cmp(const fib_prefix_t *p1,
248  const fib_prefix_t *p2);
249 
250 /**
251  * \brief Copy a prefix
252  */
253 extern void fib_prefix_copy(fib_prefix_t *dst,
254  const fib_prefix_t *src);
255 
256 /**
257  * \brief Compare two prefixes for covering relationship
258  *
259  * \return non-zero if the first prefix is a cover for the second
260  */
261 extern int fib_prefix_is_cover(const fib_prefix_t *p1,
262  const fib_prefix_t *p2);
263 
264 /**
265  * \brief Return true is the prefix is a host prefix
266  */
267 extern int fib_prefix_is_host(const fib_prefix_t *p);
268 
269 
270 /**
271  * \brief Host prefix from ip
272  */
273 extern void fib_prefix_from_ip46_addr (const ip46_address_t *addr,
274  fib_prefix_t *pfx);
275 
276 extern u8 * format_fib_prefix(u8 * s, va_list * args);
277 extern u8 * format_fib_forw_chain_type(u8 * s, va_list * args);
278 
279 extern dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto);
280 extern fib_protocol_t dpo_proto_to_fib(dpo_proto_t dpo_proto);
281 
282 /**
283  * Convert from BIER next-hop proto to FIB proto
284  */
285 extern fib_protocol_t bier_hdr_proto_to_fib(bier_hdr_proto_id_t bproto);
286 
287 /**
288  * Enurmeration of special path/entry types
289  */
290 typedef enum fib_special_type_t_ {
291  /**
292  * Marker. Add new types after this one.
293  */
295  /**
296  * Local/for-us paths
297  */
299  /**
300  * drop paths
301  */
303  /**
304  * Marker. Add new types before this one, then update it.
305  */
307 } __attribute__ ((packed)) fib_special_type_t;
308 
309 /**
310  * The maximum number of types
311  */
312 #define FIB_SPEICAL_TYPE_MAX (FIB_SPEICAL_TYPE_LAST + 1)
313 
314 #define FOR_EACH_FIB_SPEICAL_TYPE(_item) \
315  for (_item = FIB_TYPE_SPEICAL_FIRST; \
316  _item <= FIB_SPEICAL_TYPE_LAST; _item++)
317 
318 extern u8 * format_fib_protocol(u8 * s, va_list *ap);
319 extern u8 * format_vnet_link(u8 *s, va_list *ap);
320 
321 /**
322  * Path flags from the control plane
323  */
325 {
327  /**
328  * Recursion constraint of via a host prefix
329  */
331  /**
332  * Recursion constraint of via an attahced prefix
333  */
335  /**
336  * A for-us/local path
337  */
339  /**
340  * Attached path
341  */
343  /**
344  * A Drop path - resolve the path on the drop DPO
345  */
347  /**
348  * Don't resolve the path, use the DPO the client provides
349  */
351  /**
352  * A path that result in received traffic being recieved/recirculated
353  * so that it appears to have arrived on the new interface
354  */
356  /**
357  * A local path with a RPF-ID => multicast traffic
358  */
360  /**
361  * A deag path using the packet's source not destination address.
362  */
364  /**
365  * A path via a UDP encap object.
366  */
368  /**
369  * A path that resolves via a BIER F-Mask
370  */
372  /**
373  * A path that resolves via a BIER [ECMP] Table
374  */
376  /**
377  * A path that resolves via a BIER impostion object
378  */
380  /**
381  * A path that resolves via another table
382  */
383  FIB_ROUTE_PATH_DEAG = (1 << 13),
384  /**
385  * A path that resolves via a DVR DPO
386  */
387  FIB_ROUTE_PATH_DVR = (1 << 14),
388 
392 
393  /**
394  * Pop a Psuedo Wire Control Word
395  */
398 
399 /**
400  * An RPF-ID is numerical value that is used RPF validate. An entry
401  * has-a RPF-ID, when a packet egress from (e.g. an LSP) it gains an
402  * RPF-ID, these two are compared for the RPF check.
403  * This replaces the interfce based chack (since the LSP has no associated
404  * interface.
405  */
407 
408 #define MFIB_RPF_ID_NONE (0)
409 
410 /**
411  * MPLS LSP mode - only valid at the head and tail
412  */
414 {
415  /**
416  * Pipe Mode - the default.
417  * TTL and DSCP markings are not carried between the layers
418  */
420  /**
421  * Uniform mode.
422  * TTL and DSCP are copied between the layers
423  */
425 } __attribute__((packed)) fib_mpls_lsp_mode_t;
426 
427 #define FIB_MPLS_LSP_MODES { \
428  [FIB_MPLS_LSP_MODE_PIPE] = "pipe", \
429  [FIB_MPLS_LSP_MODE_UNIFORM] = "uniform", \
430 }
431 
432 /**
433  * Format an LSP mode type
434  */
435 extern u8 * format_fib_mpls_lsp_mode(u8 *s, va_list *ap);
436 
437 /**
438  * Configuration for each label value in the output-stack
439  */
440 typedef struct fib_mpls_label_t_
441 {
442  /**
443  * The label value
444  */
446 
447  /**
448  * The LSP mode
449  */
450  fib_mpls_lsp_mode_t fml_mode;
451 
452  /**
453  * TTL. valid only at imposition.
454  */
456 
457  /**
458  * EXP bits; valid only at imposition.
459  */
462 
463 /**
464  * Format an MPLS label
465  */
466 extern u8 * format_fib_mpls_label(u8 *s, va_list *ap);
467 
468 /**
469  * @brief
470  * A representation of a path as described by a route producer.
471  * These paramenters will determine the path 'type', of which there are:
472  * 1) Attached-next-hop:
473  * a single peer on a link.
474  * It is 'attached' because it is in the same sub-net as the router, on a link
475  * directly connected to the route.
476  * It is 'next=hop' since the next-hop address of the peer is known.
477  * 2) Attached:
478  * the next-hop is not known. but we can ARP for it.
479  * 3) Recursive.
480  * The next-hop is known but the interface is not. So to find the adj to use
481  * we must recursively resolve the next-hop.
482  * 3) deaggregate (deag)
483  * A further lookup is required.
484  */
485 typedef struct fib_route_path_t_ {
486  /**
487  * The protocol of the address below. We need this since the all
488  * zeros address is ambiguous.
489  */
491 
492  union {
493  struct {
494  union {
495  /**
496  * The next-hop address.
497  * Will be NULL for attached paths.
498  * Will be all zeros for attached-next-hop paths on a p2p interface
499  * Will be all zeros for a deag path.
500  */
501  ip46_address_t frp_addr;
502 
503  struct {
504  /**
505  * The MPLS local Label to reursively resolve through.
506  * This is valid when the path type is MPLS.
507  */
509  /**
510  * EOS bit for the resolving label
511  */
513  };
514  /**
515  * A path via a BIER imposition object.
516  * Present in an mfib path list
517  */
519  };
520 
521  /**
522  * The interface.
523  * Will be invalid for recursive paths.
524  */
526 
527  /**
528  * The RPF-ID
529  */
530  fib_rpf_id_t frp_rpf_id;
531 
532  union {
533  /**
534  * The FIB index to lookup the nexthop
535  * Only valid for recursive paths.
536  */
538  /**
539  * The BIER table to resolve the fmask in
540  */
542  };
543  /**
544  * The outgoing MPLS label Stack. NULL implies no label.
545  */
547  /**
548  * Exclusive DPO
549  */
551  /**
552  * MFIB interface flags
553  */
555  };
556  /**
557  * A path that resolves via a BIER Table.
558  * This would be for a MPLS label at a BIER midpoint or tail
559  */
561 
562  /**
563  * UDP encap ID
564  */
566 
567  /**
568  * Classify table ID
569  */
571 
572  /**
573  * Resolving via a BIER Fmask
574  */
576 
577  /**
578  * The DPO for use with exclusive paths
579  */
581  };
582  /**
583  * [un]equal cost path weight
584  */
586  /**
587  * A path preference. 0 is the best.
588  * Only paths of the best preference, that are 'up', are considered
589  * for forwarding.
590  */
592  /**
593  * flags on the path
594  */
597 
598 /**
599  * Unformat a fib_route_path_t from CLI input
600  */
601 extern uword unformat_fib_route_path(unformat_input_t * input, va_list * args);
602 
603 /**
604  * A help string to list the FIB path options
605  */
606 #define FIB_ROUTE_PATH_HELP "[next-hop-address] [next-hop-interface] [next-hop-table <value>] [weight <value>] [preference <value>] [udp-encap-id <value>] [ip4-lookup-in-table <value>] [ip6-lookup-in-table <value>] [mpls-lookup-in-table <value>] [resolve-via-host] [resolve-via-connected] [rx-ip4 <interface>] [out-labels <value value value>]"
607 
608 /**
609  * return code to control pat-hlist walk
610  */
612 {
616 
617 /**
618  * A list of path-extensions
619  */
620 typedef struct fib_path_ext_list_t_
621 {
624 
625 #endif
fib_protocol_t fp_proto
protocol type
Definition: fib_types.h:212
Contribute an object that is to be used to forward BIER packets.
Definition: fib_types.h:122
dpo_id_t frp_dpo
The DPO for use with exclusive paths.
Definition: fib_types.h:580
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:137
ip46_address_t frp_addr
The next-hop address.
Definition: fib_types.h:501
A path that resolves via a DVR DPO.
Definition: fib_types.h:387
Contribute an object that is to be used to forward IP6 packets.
Definition: fib_types.h:113
Pipe Mode - the default.
Definition: fib_types.h:419
mpls_eos_bit_t frp_eos
EOS bit for the resolving label.
Definition: fib_types.h:512
A representation of a path as described by a route producer.
Definition: fib_types.h:485
A Drop path - resolve the path on the drop DPO.
Definition: fib_types.h:346
fib_forward_chain_type_t fib_forw_chain_type_from_fib_proto(fib_protocol_t proto)
Convert from a fib-protocol to a chain type.
Definition: fib_types.c:353
dpo_proto_t fib_forw_chain_type_to_dpo_proto(fib_forward_chain_type_t fct)
Convert from a chain type to the DPO proto it will install.
Definition: fib_types.c:420
u32 frp_mitf_flags
MFIB interface flags.
Definition: fib_types.h:554
Local/for-us paths.
Definition: fib_types.h:298
u8 * format_vnet_link(u8 *s, va_list *ap)
Definition: fib_types.c:41
A path that resolves via a BIER impostion object.
Definition: fib_types.h:379
index_t frp_bier_imp
A path via a BIER imposition object.
Definition: fib_types.h:518
vnet_link_t fib_forw_chain_type_to_link_type(fib_forward_chain_type_t fct)
Convert from a chain type to the adjacency&#39;s link type.
Definition: fib_types.c:369
u32 mpls_label_t
A label value only, i.e.
Definition: packet.h:26
u32 index_t
A Data-Path Object is an object that represents actions that are applied to packets are they are swit...
Definition: dpo.h:41
vl_api_address_t src
Definition: gre.api:51
u8 * format_fib_mpls_lsp_mode(u8 *s, va_list *ap)
Format an LSP mode type.
Definition: fib_types.c:57
A path that resolves via a BIER [ECMP] Table.
Definition: fib_types.h:375
struct fib_path_ext_t_ * fpel_exts
Definition: fib_types.h:622
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:109
#define STRUCT_OFFSET_OF(t, f)
Definition: clib.h:66
fib_forward_chain_type_t fib_forw_chain_type_from_link_type(vnet_link_t lt)
Convert from a adjacency&#39;s link type to chain type.
Definition: fib_types.c:397
dpo_proto_t frp_proto
The protocol of the address below.
Definition: fib_types.h:490
bier_table_id_t frp_bier_tbl
A path that resolves via a BIER Table.
Definition: fib_types.h:560
A path that result in received traffic being recieved/recirculated so that it appears to have arrived...
Definition: fib_types.h:355
The ID of a table.
Definition: bier_types.h:394
vhost_vring_addr_t addr
Definition: vhost_user.h:147
unsigned char u8
Definition: types.h:56
enum fib_protocol_t_ fib_protocol_t
Protocol Type.
fib_rpf_id_t frp_rpf_id
The RPF-ID.
Definition: fib_types.h:530
A local path with a RPF-ID => multicast traffic.
Definition: fib_types.h:359
dpo_proto_t fp_payload_proto
This protocol determines the payload protocol of packets that will be forwarded by this entry once th...
Definition: fib_types.h:236
fib_mpls_lsp_mode_t_
MPLS LSP mode - only valid at the head and tail.
Definition: fib_types.h:413
u32 frp_sw_if_index
The interface.
Definition: fib_types.h:525
fib_special_type_t_
Enurmeration of special path/entry types.
Definition: fib_types.h:290
Recursion constraint of via a host prefix.
Definition: fib_types.h:330
Aggregate type for a prefix.
Definition: fib_types.h:203
A path via a UDP encap object.
Definition: fib_types.h:367
enum fib_route_path_flags_t_ fib_route_path_flags_t
Path flags from the control plane.
unsigned int u32
Definition: types.h:88
Contribute an object that is to be used to forward Ethernet packets.
Definition: fib_types.h:141
enum dpo_proto_t_ dpo_proto_t
Data path protocol.
u16 fp_len
The mask length.
Definition: fib_types.h:207
STATIC_ASSERT(STRUCT_OFFSET_OF(fib_prefix_t, fp_addr)==4, "FIB Prefix's address is 4 byte aligned.")
enum fib_special_type_t_ fib_special_type_t
Enurmeration of special path/entry types.
index_t frp_bier_fmask
Resolving via a BIER Fmask.
Definition: fib_types.h:575
The identity of a DPO is a combination of its type and its instance number/index of objects of that t...
Definition: dpo.h:170
Contribute an object that is to be used to forward end-of-stack MPLS packets.
Definition: fib_types.h:129
fib_protocol_t_
Protocol Type.
Definition: fib_types.h:36
ip46_address_t fp_addr
The address type is not deriveable from the fp_addr member.
Definition: fib_types.h:226
struct _unformat_input_t unformat_input_t
unsigned short u16
Definition: types.h:57
enum fib_mpls_lsp_mode_t_ fib_mpls_lsp_mode_t
MPLS LSP mode - only valid at the head and tail.
u8 * format_fib_prefix(u8 *s, va_list *args)
Definition: fib_types.c:187
int fib_prefix_is_cover(const fib_prefix_t *p1, const fib_prefix_t *p2)
Compare two prefixes for covering relationship.
Definition: fib_types.c:150
Configuration for each label value in the output-stack.
Definition: fib_types.h:440
fib_mpls_label_t * frp_label_stack
The outgoing MPLS label Stack.
Definition: fib_types.h:546
Recursion constraint of via an attahced prefix.
Definition: fib_types.h:334
struct fib_route_path_t_ fib_route_path_t
A representation of a path as described by a route producer.
A list of path-extensions.
Definition: fib_types.h:620
fib_protocol_t dpo_proto_to_fib(dpo_proto_t dpo_proto)
Definition: fib_types.c:263
vl_api_address_t dst
Definition: gre.api:52
fib_path_list_walk_rc_t_
return code to control pat-hlist walk
Definition: fib_types.h:611
dpo_id_t dpo
Exclusive DPO.
Definition: fib_types.h:550
fib_mpls_lsp_mode_t fml_mode
The LSP mode.
Definition: fib_types.h:450
Pop a Psuedo Wire Control Word.
Definition: fib_types.h:396
uword unformat_fib_route_path(unformat_input_t *input, va_list *args)
Unformat a fib_route_path_t from CLI input.
Definition: fib_types.c:444
struct fib_path_ext_list_t_ fib_path_ext_list_t
A list of path-extensions.
fib_forward_chain_type_t fib_forw_chain_type_from_dpo_proto(dpo_proto_t proto)
Convert from a payload-protocol to a chain type.
Definition: fib_types.c:331
u32 frp_classify_table_id
Classify table ID.
Definition: fib_types.h:570
struct fib_prefix_t_ fib_prefix_t
Aggregate type for a prefix.
Contribute an object that is to be used to forward NSH packets.
Definition: fib_types.h:147
u32 fib_node_index_t
A typedef of a node index.
Definition: fib_types.h:30
Don&#39;t resolve the path, use the DPO the client provides.
Definition: fib_types.h:350
mpls_label_t fml_value
The label value.
Definition: fib_types.h:445
enum bier_hdr_proto_id_t_ bier_hdr_proto_id_t
BIER header protocol payload types.
u8 * format_fib_mpls_label(u8 *s, va_list *ap)
Format an MPLS label.
Definition: fib_types.c:65
mpls_label_t fp_label
Definition: fib_types.h:229
u32 fib_rpf_id_t
An RPF-ID is numerical value that is used RPF validate.
Definition: fib_types.h:406
u8 * format_fib_protocol(u8 *s, va_list *ap)
Definition: fib_types.c:33
struct fib_mpls_label_t_ fib_mpls_label_t
Configuration for each label value in the output-stack.
vnet_link_t fib_proto_to_link(fib_protocol_t proto)
Convert from a protocol to a link type.
Definition: fib_types.c:281
void fib_prefix_copy(fib_prefix_t *dst, const fib_prefix_t *src)
Copy a prefix.
Definition: fib_types.c:108
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
ip46_type_t
Definition: ip6_packet.h:70
u8 frp_preference
A path preference.
Definition: fib_types.h:591
A deag path using the packet&#39;s source not destination address.
Definition: fib_types.h:363
enum fib_forward_chain_type_t_ fib_forward_chain_type_t
FIB output chain type.
fib_route_path_flags_t frp_flags
flags on the path
Definition: fib_types.h:595
A path that resolves via a BIER F-Mask.
Definition: fib_types.h:371
int fib_prefix_cmp(const fib_prefix_t *p1, const fib_prefix_t *p2)
Compare two prefixes for equality.
Definition: fib_types.c:115
A path that resolves via another table.
Definition: fib_types.h:383
void fib_prefix_from_ip46_addr(const ip46_address_t *addr, fib_prefix_t *pfx)
Host prefix from ip.
Definition: fib_types.c:81
u8 * format_fib_forw_chain_type(u8 *s, va_list *args)
Definition: fib_types.c:49
mpls_label_t frp_local_label
The MPLS local Label to reursively resolve through.
Definition: fib_types.h:508
dpo_proto_t fib_proto_to_dpo(fib_protocol_t fib_proto)
Definition: fib_types.c:247
enum fib_path_list_walk_rc_t_ fib_path_list_walk_rc_t
return code to control pat-hlist walk
A for-us/local path.
Definition: fib_types.h:338
fib_protocol_t fib_proto_from_ip46(ip46_type_t iproto)
Convert from ip46_type to fib_protocol.
Definition: fib_types.c:313
static fib_protocol_t fib_ip_proto(bool is_ip6)
Convert from boolean is_ip6 to FIB protocol.
Definition: fib_types.h:80
u64 uword
Definition: types.h:112
u32 frp_bier_fib_index
The BIER table to resolve the fmask in.
Definition: fib_types.h:541
fib_protocol_t bier_hdr_proto_to_fib(bier_hdr_proto_id_t bproto)
Convert from BIER next-hop proto to FIB proto.
A path extension is a per-entry addition to the forwarding information when packets are sent for that...
Definition: fib_path_ext.h:98
u8 fml_exp
EXP bits; valid only at imposition.
Definition: fib_types.h:460
int fib_prefix_is_host(const fib_prefix_t *p)
Return true is the prefix is a host prefix.
Definition: fib_types.c:172
Contribute an object that is to be used to forward non-end-of-stack MPLS packets. ...
Definition: fib_types.h:118
Attached path.
Definition: fib_types.h:342
fib_route_path_flags_t_
Path flags from the control plane.
Definition: fib_types.h:324
u8 frp_weight
[un]equal cost path weight
Definition: fib_types.h:585
u32 frp_udp_encap_id
UDP encap ID.
Definition: fib_types.h:565
Contribute an object that is to be used to forward IP4 packets.
Definition: fib_types.h:133
u32 frp_fib_index
The FIB index to lookup the nexthop Only valid for recursive paths.
Definition: fib_types.h:537
ip46_type_t fib_proto_to_ip46(fib_protocol_t fproto)
Convert from fib_protocol to ip46_type.
Definition: fib_types.c:297
fib_forward_chain_type_t_
FIB output chain type.
Definition: fib_types.h:105
mpls_eos_bit_t fp_eos
Definition: fib_types.h:230
enum mpls_eos_bit_t_ mpls_eos_bit_t