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54d48ea1 | 1 | /* |
2 | * Zebra MPLS Data structures and definitions | |
3 | * Copyright (C) 2015 Cumulus Networks, Inc. | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
54d48ea1 | 20 | */ |
21 | ||
22 | #ifndef _ZEBRA_MPLS_H | |
23 | #define _ZEBRA_MPLS_H | |
24 | ||
25 | #include "prefix.h" | |
26 | #include "table.h" | |
27 | #include "queue.h" | |
28 | #include "hash.h" | |
29 | #include "jhash.h" | |
30 | #include "nexthop.h" | |
31 | #include "vty.h" | |
32 | #include "memory.h" | |
33 | #include "mpls.h" | |
34 | #include "zebra/zserv.h" | |
939fba27 | 35 | #include "zebra/zebra_vrf.h" |
54d48ea1 | 36 | |
51e94aa7 EDP |
37 | #ifdef __cplusplus |
38 | extern "C" { | |
39 | #endif | |
54d48ea1 | 40 | |
41 | /* Definitions and macros. */ | |
42 | ||
d62a17ae | 43 | #define NHLFE_FAMILY(nhlfe) \ |
44 | (((nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6 \ | |
45 | || (nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) \ | |
46 | ? AF_INET6 \ | |
47 | : AF_INET) | |
54d48ea1 | 48 | |
54d48ea1 | 49 | /* Typedefs */ |
50 | ||
51 | typedef struct zebra_ile_t_ zebra_ile_t; | |
52 | typedef struct zebra_snhlfe_t_ zebra_snhlfe_t; | |
53 | typedef struct zebra_slsp_t_ zebra_slsp_t; | |
54 | typedef struct zebra_nhlfe_t_ zebra_nhlfe_t; | |
55 | typedef struct zebra_lsp_t_ zebra_lsp_t; | |
f31e084c | 56 | typedef struct zebra_fec_t_ zebra_fec_t; |
54d48ea1 | 57 | |
54d48ea1 | 58 | /* |
59 | * (Outgoing) nexthop label forwarding entry configuration | |
60 | */ | |
d62a17ae | 61 | struct zebra_snhlfe_t_ { |
62 | /* Nexthop information */ | |
63 | enum nexthop_types_t gtype; | |
64 | union g_addr gate; | |
65 | char *ifname; | |
66 | ifindex_t ifindex; | |
54d48ea1 | 67 | |
d62a17ae | 68 | /* Out label. */ |
69 | mpls_label_t out_label; | |
54d48ea1 | 70 | |
d62a17ae | 71 | /* Backpointer to base entry. */ |
72 | zebra_slsp_t *slsp; | |
54d48ea1 | 73 | |
d62a17ae | 74 | /* Pointers to more outgoing information for same in-label */ |
75 | zebra_snhlfe_t *next; | |
76 | zebra_snhlfe_t *prev; | |
54d48ea1 | 77 | }; |
78 | ||
79 | /* | |
80 | * (Outgoing) nexthop label forwarding entry | |
81 | */ | |
d62a17ae | 82 | struct zebra_nhlfe_t_ { |
83 | /* Type of entry - static etc. */ | |
84 | enum lsp_types_t type; | |
54d48ea1 | 85 | |
d62a17ae | 86 | /* Nexthop information (with outgoing label) */ |
87 | struct nexthop *nexthop; | |
54d48ea1 | 88 | |
d62a17ae | 89 | /* Backpointer to base entry. */ |
90 | zebra_lsp_t *lsp; | |
54d48ea1 | 91 | |
d62a17ae | 92 | /* Runtime info - flags, pointers etc. */ |
d7c0a89a | 93 | uint32_t flags; |
54d48ea1 | 94 | #define NHLFE_FLAG_CHANGED (1 << 0) |
95 | #define NHLFE_FLAG_SELECTED (1 << 1) | |
96 | #define NHLFE_FLAG_MULTIPATH (1 << 2) | |
97 | #define NHLFE_FLAG_DELETED (1 << 3) | |
98 | #define NHLFE_FLAG_INSTALLED (1 << 4) | |
99 | ||
d62a17ae | 100 | zebra_nhlfe_t *next; |
101 | zebra_nhlfe_t *prev; | |
d7c0a89a | 102 | uint8_t distance; |
54d48ea1 | 103 | }; |
104 | ||
105 | /* | |
106 | * Incoming label entry | |
107 | */ | |
d62a17ae | 108 | struct zebra_ile_t_ { |
109 | mpls_label_t in_label; | |
54d48ea1 | 110 | }; |
111 | ||
112 | /* | |
113 | * Label swap entry static configuration. | |
114 | */ | |
d62a17ae | 115 | struct zebra_slsp_t_ { |
116 | /* Incoming label */ | |
117 | zebra_ile_t ile; | |
54d48ea1 | 118 | |
d62a17ae | 119 | /* List of outgoing nexthop static configuration */ |
120 | zebra_snhlfe_t *snhlfe_list; | |
54d48ea1 | 121 | }; |
122 | ||
123 | /* | |
124 | * Label swap entry (ile -> list of nhlfes) | |
125 | */ | |
d62a17ae | 126 | struct zebra_lsp_t_ { |
127 | /* Incoming label */ | |
128 | zebra_ile_t ile; | |
54d48ea1 | 129 | |
d62a17ae | 130 | /* List of NHLFE, pointer to best and num equal-cost. */ |
131 | zebra_nhlfe_t *nhlfe_list; | |
132 | zebra_nhlfe_t *best_nhlfe; | |
d7c0a89a | 133 | uint32_t num_ecmp; |
54d48ea1 | 134 | |
d62a17ae | 135 | /* Flags */ |
d7c0a89a | 136 | uint32_t flags; |
54d48ea1 | 137 | #define LSP_FLAG_SCHEDULED (1 << 0) |
138 | #define LSP_FLAG_INSTALLED (1 << 1) | |
139 | #define LSP_FLAG_CHANGED (1 << 2) | |
140 | ||
d62a17ae | 141 | /* Address-family of NHLFE - saved here for delete. All NHLFEs */ |
142 | /* have to be of the same AF */ | |
d7c0a89a | 143 | uint8_t addr_family; |
54d48ea1 | 144 | }; |
145 | ||
f31e084c DS |
146 | /* |
147 | * FEC to label binding. | |
148 | */ | |
d62a17ae | 149 | struct zebra_fec_t_ { |
150 | /* FEC (prefix) */ | |
151 | struct route_node *rn; | |
f31e084c | 152 | |
d62a17ae | 153 | /* In-label - either statically bound or derived from label block. */ |
154 | mpls_label_t label; | |
f31e084c | 155 | |
d62a17ae | 156 | /* Label index (into global label block), if valid */ |
d7c0a89a | 157 | uint32_t label_index; |
28d58fd7 | 158 | |
d62a17ae | 159 | /* Flags. */ |
d7c0a89a | 160 | uint32_t flags; |
f31e084c | 161 | #define FEC_FLAG_CONFIGURED (1 << 0) |
5aba114a | 162 | |
d62a17ae | 163 | /* Clients interested in this FEC. */ |
164 | struct list *client_list; | |
f31e084c | 165 | }; |
54d48ea1 | 166 | |
7758e3f3 | 167 | /* Function declarations. */ |
168 | ||
1b6d5c7e VV |
169 | /* |
170 | * Add/update global label block. | |
171 | */ | |
d7c0a89a QY |
172 | int zebra_mpls_label_block_add(struct zebra_vrf *zvrf, uint32_t start_label, |
173 | uint32_t end_label); | |
1b6d5c7e VV |
174 | |
175 | /* | |
176 | * Delete global label block. | |
177 | */ | |
d62a17ae | 178 | int zebra_mpls_label_block_del(struct zebra_vrf *vrf); |
1b6d5c7e VV |
179 | |
180 | /* | |
181 | * Display MPLS global label block configuration (VTY command handler). | |
182 | */ | |
d62a17ae | 183 | int zebra_mpls_write_label_block_config(struct vty *vty, struct zebra_vrf *vrf); |
1b6d5c7e | 184 | |
a64448ba DS |
185 | /* |
186 | * Install dynamic LSP entry. | |
187 | */ | |
d62a17ae | 188 | int zebra_mpls_lsp_install(struct zebra_vrf *zvrf, struct route_node *rn, |
189 | struct route_entry *re); | |
a64448ba DS |
190 | |
191 | /* | |
d62a17ae | 192 | * Uninstall dynamic LSP entry, if any. |
a64448ba | 193 | */ |
d62a17ae | 194 | int zebra_mpls_lsp_uninstall(struct zebra_vrf *zvrf, struct route_node *rn, |
195 | struct route_entry *re); | |
a64448ba | 196 | |
d4cb23d7 MS |
197 | /* Add an NHLFE to an LSP, return the newly-added object */ |
198 | zebra_nhlfe_t *zebra_mpls_lsp_add_nhlfe(zebra_lsp_t *lsp, | |
199 | enum lsp_types_t lsp_type, | |
200 | enum nexthop_types_t gtype, | |
201 | union g_addr *gate, | |
202 | ifindex_t ifindex, | |
203 | mpls_label_t out_label); | |
204 | ||
205 | /* Free an allocated NHLFE */ | |
206 | void zebra_mpls_nhlfe_del(zebra_nhlfe_t *nhlfe); | |
207 | ||
d62a17ae | 208 | int zebra_mpls_fec_register(struct zebra_vrf *zvrf, struct prefix *p, |
57592a53 AD |
209 | uint32_t label, uint32_t label_index, |
210 | struct zserv *client); | |
5aba114a DS |
211 | |
212 | /* | |
213 | * Deregistration from a client for the label binding for a FEC. The FEC | |
214 | * itself is deleted if no other registered clients exist and there is no | |
215 | * label bound to the FEC. | |
216 | */ | |
d62a17ae | 217 | int zebra_mpls_fec_unregister(struct zebra_vrf *zvrf, struct prefix *p, |
218 | struct zserv *client); | |
5aba114a | 219 | |
f31e084c DS |
220 | /* |
221 | * Return FEC (if any) to which this label is bound. | |
222 | * Note: Only works for per-prefix binding and when the label is not | |
223 | * implicit-null. | |
224 | * TODO: Currently walks entire table, can optimize later with another | |
225 | * hash.. | |
226 | */ | |
d62a17ae | 227 | zebra_fec_t *zebra_mpls_fec_for_label(struct zebra_vrf *zvrf, |
228 | mpls_label_t label); | |
f31e084c DS |
229 | |
230 | /* | |
231 | * Inform if specified label is currently bound to a FEC or not. | |
232 | */ | |
d62a17ae | 233 | int zebra_mpls_label_already_bound(struct zebra_vrf *zvrf, mpls_label_t label); |
f31e084c DS |
234 | |
235 | /* | |
5aba114a | 236 | * Add static FEC to label binding. If there are clients registered for this |
a64448ba DS |
237 | * FEC, notify them. If there are labeled routes for this FEC, install the |
238 | * label forwarding entry. | |
f31e084c | 239 | */ |
d62a17ae | 240 | int zebra_mpls_static_fec_add(struct zebra_vrf *zvrf, struct prefix *p, |
241 | mpls_label_t in_label); | |
f31e084c DS |
242 | |
243 | /* | |
5aba114a DS |
244 | * Remove static FEC to label binding. If there are no clients registered |
245 | * for this FEC, delete the FEC; else notify clients. | |
28d58fd7 VV |
246 | * Note: Upon delete of static binding, if label index exists for this FEC, |
247 | * client may need to be updated with derived label. | |
f31e084c | 248 | */ |
d62a17ae | 249 | int zebra_mpls_static_fec_del(struct zebra_vrf *zvrf, struct prefix *p); |
f31e084c DS |
250 | |
251 | /* | |
252 | * Display MPLS FEC to label binding configuration (VTY command handler). | |
253 | */ | |
d62a17ae | 254 | int zebra_mpls_write_fec_config(struct vty *vty, struct zebra_vrf *zvrf); |
f31e084c DS |
255 | |
256 | /* | |
257 | * Display MPLS FEC to label binding (VTY command handler). | |
258 | */ | |
d62a17ae | 259 | void zebra_mpls_print_fec_table(struct vty *vty, struct zebra_vrf *zvrf); |
f31e084c DS |
260 | |
261 | /* | |
262 | * Display MPLS FEC to label binding for a specific FEC (VTY command handler). | |
263 | */ | |
d62a17ae | 264 | void zebra_mpls_print_fec(struct vty *vty, struct zebra_vrf *zvrf, |
265 | struct prefix *p); | |
f31e084c | 266 | |
ce549947 RW |
267 | /* |
268 | * Install/uninstall a FEC-To-NHLFE (FTN) binding. | |
269 | */ | |
d62a17ae | 270 | int mpls_ftn_update(int add, struct zebra_vrf *zvrf, enum lsp_types_t type, |
271 | struct prefix *prefix, enum nexthop_types_t gtype, | |
d7c0a89a | 272 | union g_addr *gate, ifindex_t ifindex, uint8_t distance, |
d62a17ae | 273 | mpls_label_t out_label); |
ce549947 RW |
274 | |
275 | /* | |
276 | * Install/update a NHLFE for an LSP in the forwarding table. This may be | |
277 | * a new LSP entry or a new NHLFE for an existing in-label or an update of | |
278 | * the out-label for an existing NHLFE (update case). | |
279 | */ | |
d62a17ae | 280 | int mpls_lsp_install(struct zebra_vrf *zvrf, enum lsp_types_t type, |
281 | mpls_label_t in_label, mpls_label_t out_label, | |
282 | enum nexthop_types_t gtype, union g_addr *gate, | |
283 | ifindex_t ifindex); | |
ce549947 RW |
284 | |
285 | /* | |
286 | * Uninstall a particular NHLFE in the forwarding table. If this is | |
287 | * the only NHLFE, the entire LSP forwarding entry has to be deleted. | |
288 | */ | |
d62a17ae | 289 | int mpls_lsp_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type, |
290 | mpls_label_t in_label, enum nexthop_types_t gtype, | |
291 | union g_addr *gate, ifindex_t ifindex); | |
ce549947 RW |
292 | |
293 | /* | |
294 | * Uninstall all LDP NHLFEs for a particular LSP forwarding entry. | |
295 | * If no other NHLFEs exist, the entry would be deleted. | |
296 | */ | |
e3b78da8 | 297 | void mpls_ldp_lsp_uninstall_all(struct hash_bucket *bucket, void *ctxt); |
ce549947 RW |
298 | |
299 | /* | |
300 | * Uninstall all LDP FEC-To-NHLFE (FTN) bindings of the given address-family. | |
301 | */ | |
d62a17ae | 302 | void mpls_ldp_ftn_uninstall_all(struct zebra_vrf *zvrf, int afi); |
ce549947 | 303 | |
cf9b9f77 OD |
304 | /* |
305 | * Uninstall all Segment Routing NHLFEs for a particular LSP forwarding entry. | |
306 | * If no other NHLFEs exist, the entry would be deleted. | |
307 | */ | |
e3b78da8 | 308 | void mpls_sr_lsp_uninstall_all(struct hash_bucket *bucket, void *ctxt); |
cf9b9f77 | 309 | |
1c1cf002 | 310 | #if defined(HAVE_CUMULUS) |
7758e3f3 | 311 | /* |
312 | * Check that the label values used in LSP creation are consistent. The | |
313 | * main criteria is that if there is ECMP, the label operation must still | |
314 | * be consistent - i.e., all paths either do a swap or do PHP. This is due | |
315 | * to current HW restrictions. | |
316 | */ | |
d62a17ae | 317 | int zebra_mpls_lsp_label_consistent(struct zebra_vrf *zvrf, |
318 | mpls_label_t in_label, | |
319 | mpls_label_t out_label, | |
320 | enum nexthop_types_t gtype, | |
321 | union g_addr *gate, ifindex_t ifindex); | |
1c1cf002 | 322 | #endif /* HAVE_CUMULUS */ |
7758e3f3 | 323 | |
324 | /* | |
325 | * Add static LSP entry. This may be the first entry for this incoming label | |
326 | * or an additional nexthop; an existing entry may also have outgoing label | |
327 | * changed. | |
328 | * Note: The label operation (swap or PHP) is common for the LSP entry (all | |
329 | * NHLFEs). | |
330 | */ | |
d62a17ae | 331 | int zebra_mpls_static_lsp_add(struct zebra_vrf *zvrf, mpls_label_t in_label, |
332 | mpls_label_t out_label, | |
333 | enum nexthop_types_t gtype, union g_addr *gate, | |
334 | ifindex_t ifindex); | |
7758e3f3 | 335 | |
336 | /* | |
337 | * Delete static LSP entry. This may be the delete of one particular | |
338 | * NHLFE for this incoming label or the delete of the entire entry (i.e., | |
339 | * all NHLFEs). | |
340 | * NOTE: Delete of the only NHLFE will also end up deleting the entire | |
341 | * LSP configuration. | |
342 | */ | |
d62a17ae | 343 | int zebra_mpls_static_lsp_del(struct zebra_vrf *zvrf, mpls_label_t in_label, |
344 | enum nexthop_types_t gtype, union g_addr *gate, | |
345 | ifindex_t ifindex); | |
7758e3f3 | 346 | |
d37f4d6c MS |
347 | /* |
348 | * Process LSP update results from zebra dataplane. | |
349 | */ | |
350 | /* Forward ref of dplane update context type */ | |
351 | struct zebra_dplane_ctx; | |
352 | ||
353 | void zebra_mpls_lsp_dplane_result(struct zebra_dplane_ctx *ctx); | |
354 | ||
40c7bdb0 | 355 | /* |
356 | * Schedule all MPLS label forwarding entries for processing. | |
357 | * Called upon changes that may affect one or more of them such as | |
358 | * interface or nexthop state changes. | |
359 | */ | |
d62a17ae | 360 | void zebra_mpls_lsp_schedule(struct zebra_vrf *zvrf); |
40c7bdb0 | 361 | |
3ab18ff2 | 362 | /* |
363 | * Display MPLS label forwarding table for a specific LSP | |
364 | * (VTY command handler). | |
365 | */ | |
d62a17ae | 366 | void zebra_mpls_print_lsp(struct vty *vty, struct zebra_vrf *zvrf, |
9f049418 | 367 | mpls_label_t label, bool use_json); |
3ab18ff2 | 368 | |
369 | /* | |
370 | * Display MPLS label forwarding table (VTY command handler). | |
371 | */ | |
d62a17ae | 372 | void zebra_mpls_print_lsp_table(struct vty *vty, struct zebra_vrf *zvrf, |
9f049418 | 373 | bool use_json); |
3ab18ff2 | 374 | |
7758e3f3 | 375 | /* |
376 | * Display MPLS LSP configuration of all static LSPs (VTY command handler). | |
377 | */ | |
d62a17ae | 378 | int zebra_mpls_write_lsp_config(struct vty *vty, struct zebra_vrf *zvrf); |
7758e3f3 | 379 | |
84915b0a | 380 | /* |
381 | * Called when VRF becomes inactive, cleans up information but keeps | |
382 | * the table itself. | |
383 | * NOTE: Currently supported only for default VRF. | |
384 | */ | |
385 | void zebra_mpls_cleanup_tables(struct zebra_vrf *zvrf); | |
386 | ||
40c7bdb0 | 387 | /* |
388 | * Called upon process exiting, need to delete LSP forwarding | |
389 | * entries from the kernel. | |
390 | * NOTE: Currently supported only for default VRF. | |
391 | */ | |
d62a17ae | 392 | void zebra_mpls_close_tables(struct zebra_vrf *zvrf); |
40c7bdb0 | 393 | |
7758e3f3 | 394 | /* |
395 | * Allocate MPLS tables for this VRF. | |
396 | * NOTE: Currently supported only for default VRF. | |
397 | */ | |
d62a17ae | 398 | void zebra_mpls_init_tables(struct zebra_vrf *zvrf); |
7758e3f3 | 399 | |
400 | /* | |
401 | * Global MPLS initialization. | |
402 | */ | |
d62a17ae | 403 | void zebra_mpls_init(void); |
7758e3f3 | 404 | |
fe6c7157 RW |
405 | /* |
406 | * MPLS VTY. | |
407 | */ | |
d62a17ae | 408 | void zebra_mpls_vty_init(void); |
fe6c7157 | 409 | |
40c7bdb0 | 410 | /* Inline functions. */ |
411 | ||
412 | /* | |
413 | * Distance (priority) definition for LSP NHLFE. | |
414 | */ | |
d7c0a89a | 415 | static inline uint8_t lsp_distance(enum lsp_types_t type) |
40c7bdb0 | 416 | { |
0492eea0 RW |
417 | switch (type) { |
418 | case ZEBRA_LSP_STATIC: | |
d62a17ae | 419 | return (route_distance(ZEBRA_ROUTE_STATIC)); |
0492eea0 RW |
420 | case ZEBRA_LSP_LDP: |
421 | return (route_distance(ZEBRA_ROUTE_LDP)); | |
422 | case ZEBRA_LSP_BGP: | |
423 | return (route_distance(ZEBRA_ROUTE_BGP)); | |
339e36d2 DS |
424 | case ZEBRA_LSP_NONE: |
425 | case ZEBRA_LSP_SHARP: | |
426 | case ZEBRA_LSP_SR: | |
0492eea0 RW |
427 | return 150; |
428 | } | |
339e36d2 DS |
429 | |
430 | /* | |
431 | * For some reason certain compilers do not believe | |
432 | * that all the cases have been handled. And | |
433 | * WTF does this work differently than when I removed | |
434 | * the default case???? | |
435 | */ | |
436 | return 150; | |
40c7bdb0 | 437 | } |
438 | ||
439 | /* | |
440 | * Map RIB type to LSP type. Used when labeled-routes from BGP | |
441 | * are converted into LSPs. | |
442 | */ | |
d62a17ae | 443 | static inline enum lsp_types_t lsp_type_from_re_type(int re_type) |
40c7bdb0 | 444 | { |
d62a17ae | 445 | switch (re_type) { |
446 | case ZEBRA_ROUTE_STATIC: | |
447 | return ZEBRA_LSP_STATIC; | |
448 | case ZEBRA_ROUTE_BGP: | |
449 | return ZEBRA_LSP_BGP; | |
339e36d2 DS |
450 | case ZEBRA_ROUTE_SHARP: |
451 | return ZEBRA_LSP_SHARP; | |
d62a17ae | 452 | default: |
453 | return ZEBRA_LSP_NONE; | |
454 | } | |
40c7bdb0 | 455 | } |
456 | ||
805444ce RW |
457 | /* |
458 | * Map LSP type to RIB type. | |
459 | */ | |
460 | static inline int re_type_from_lsp_type(enum lsp_types_t lsp_type) | |
461 | { | |
462 | switch (lsp_type) { | |
463 | case ZEBRA_LSP_STATIC: | |
464 | return ZEBRA_ROUTE_STATIC; | |
465 | case ZEBRA_LSP_LDP: | |
466 | return ZEBRA_ROUTE_LDP; | |
467 | case ZEBRA_LSP_BGP: | |
468 | return ZEBRA_ROUTE_BGP; | |
cf9b9f77 | 469 | case ZEBRA_LSP_SR: |
7726c479 | 470 | return ZEBRA_ROUTE_OSPF; |
805444ce | 471 | case ZEBRA_LSP_NONE: |
805444ce | 472 | return ZEBRA_ROUTE_KERNEL; |
339e36d2 DS |
473 | case ZEBRA_LSP_SHARP: |
474 | return ZEBRA_ROUTE_SHARP; | |
805444ce | 475 | } |
339e36d2 DS |
476 | |
477 | /* | |
478 | * For some reason certain compilers do not believe | |
479 | * that all the cases have been handled. And | |
480 | * WTF does this work differently than when I removed | |
481 | * the default case???? | |
482 | */ | |
483 | return ZEBRA_ROUTE_KERNEL; | |
805444ce RW |
484 | } |
485 | ||
3ab18ff2 | 486 | /* NHLFE type as printable string. */ |
d62a17ae | 487 | static inline const char *nhlfe_type2str(enum lsp_types_t lsp_type) |
3ab18ff2 | 488 | { |
d62a17ae | 489 | switch (lsp_type) { |
490 | case ZEBRA_LSP_STATIC: | |
491 | return "Static"; | |
492 | case ZEBRA_LSP_LDP: | |
493 | return "LDP"; | |
494 | case ZEBRA_LSP_BGP: | |
495 | return "BGP"; | |
cf9b9f77 OD |
496 | case ZEBRA_LSP_SR: |
497 | return "SR"; | |
339e36d2 DS |
498 | case ZEBRA_LSP_SHARP: |
499 | return "SHARP"; | |
500 | case ZEBRA_LSP_NONE: | |
d62a17ae | 501 | return "Unknown"; |
502 | } | |
339e36d2 DS |
503 | |
504 | /* | |
505 | * For some reason certain compilers do not believe | |
506 | * that all the cases have been handled. And | |
507 | * WTF does this work differently than when I removed | |
508 | * the default case???? | |
509 | */ | |
510 | return "Unknown"; | |
3ab18ff2 | 511 | } |
512 | ||
d62a17ae | 513 | static inline void mpls_mark_lsps_for_processing(struct zebra_vrf *zvrf) |
939fba27 | 514 | { |
d62a17ae | 515 | if (!zvrf) |
516 | return; | |
939fba27 | 517 | |
d62a17ae | 518 | zvrf->mpls_flags |= MPLS_FLAG_SCHEDULE_LSPS; |
939fba27 | 519 | } |
520 | ||
d62a17ae | 521 | static inline void mpls_unmark_lsps_for_processing(struct zebra_vrf *zvrf) |
939fba27 | 522 | { |
d62a17ae | 523 | if (!zvrf) |
524 | return; | |
939fba27 | 525 | |
d62a17ae | 526 | zvrf->mpls_flags &= ~MPLS_FLAG_SCHEDULE_LSPS; |
939fba27 | 527 | } |
528 | ||
d62a17ae | 529 | static inline int mpls_should_lsps_be_processed(struct zebra_vrf *zvrf) |
939fba27 | 530 | { |
d62a17ae | 531 | if (!zvrf) |
532 | return 0; | |
939fba27 | 533 | |
d62a17ae | 534 | return ((zvrf->mpls_flags & MPLS_FLAG_SCHEDULE_LSPS) ? 1 : 0); |
939fba27 | 535 | } |
536 | ||
fe6c7157 RW |
537 | /* Global variables. */ |
538 | extern int mpls_enabled; | |
539 | ||
51e94aa7 EDP |
540 | #ifdef __cplusplus |
541 | } | |
542 | #endif | |
543 | ||
54d48ea1 | 544 | #endif /*_ZEBRA_MPLS_H */ |