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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 | |
37 | ||
38 | /* Definitions and macros. */ | |
39 | ||
d62a17ae | 40 | #define NHLFE_FAMILY(nhlfe) \ |
41 | (((nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6 \ | |
42 | || (nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) \ | |
43 | ? AF_INET6 \ | |
44 | : AF_INET) | |
54d48ea1 | 45 | |
d62a17ae | 46 | #define MPLS_LABEL_HELPSTR \ |
47 | "Specify label(s) for this route\nOne or more " \ | |
48 | "labels in the range (16-1048575) separated by '/'\n" | |
54d48ea1 | 49 | |
50 | /* Typedefs */ | |
51 | ||
52 | typedef struct zebra_ile_t_ zebra_ile_t; | |
53 | typedef struct zebra_snhlfe_t_ zebra_snhlfe_t; | |
54 | typedef struct zebra_slsp_t_ zebra_slsp_t; | |
55 | typedef struct zebra_nhlfe_t_ zebra_nhlfe_t; | |
56 | typedef struct zebra_lsp_t_ zebra_lsp_t; | |
f31e084c | 57 | typedef struct zebra_fec_t_ zebra_fec_t; |
54d48ea1 | 58 | |
54d48ea1 | 59 | /* |
60 | * (Outgoing) nexthop label forwarding entry configuration | |
61 | */ | |
d62a17ae | 62 | struct zebra_snhlfe_t_ { |
63 | /* Nexthop information */ | |
64 | enum nexthop_types_t gtype; | |
65 | union g_addr gate; | |
66 | char *ifname; | |
67 | ifindex_t ifindex; | |
54d48ea1 | 68 | |
d62a17ae | 69 | /* Out label. */ |
70 | mpls_label_t out_label; | |
54d48ea1 | 71 | |
d62a17ae | 72 | /* Backpointer to base entry. */ |
73 | zebra_slsp_t *slsp; | |
54d48ea1 | 74 | |
d62a17ae | 75 | /* Pointers to more outgoing information for same in-label */ |
76 | zebra_snhlfe_t *next; | |
77 | zebra_snhlfe_t *prev; | |
54d48ea1 | 78 | }; |
79 | ||
80 | /* | |
81 | * (Outgoing) nexthop label forwarding entry | |
82 | */ | |
d62a17ae | 83 | struct zebra_nhlfe_t_ { |
84 | /* Type of entry - static etc. */ | |
85 | enum lsp_types_t type; | |
54d48ea1 | 86 | |
d62a17ae | 87 | /* Nexthop information (with outgoing label) */ |
88 | struct nexthop *nexthop; | |
54d48ea1 | 89 | |
d62a17ae | 90 | /* Backpointer to base entry. */ |
91 | zebra_lsp_t *lsp; | |
54d48ea1 | 92 | |
d62a17ae | 93 | /* Runtime info - flags, pointers etc. */ |
94 | u_int32_t flags; | |
54d48ea1 | 95 | #define NHLFE_FLAG_CHANGED (1 << 0) |
96 | #define NHLFE_FLAG_SELECTED (1 << 1) | |
97 | #define NHLFE_FLAG_MULTIPATH (1 << 2) | |
98 | #define NHLFE_FLAG_DELETED (1 << 3) | |
99 | #define NHLFE_FLAG_INSTALLED (1 << 4) | |
100 | ||
d62a17ae | 101 | zebra_nhlfe_t *next; |
102 | zebra_nhlfe_t *prev; | |
103 | u_char distance; | |
54d48ea1 | 104 | }; |
105 | ||
106 | /* | |
107 | * Incoming label entry | |
108 | */ | |
d62a17ae | 109 | struct zebra_ile_t_ { |
110 | mpls_label_t in_label; | |
54d48ea1 | 111 | }; |
112 | ||
113 | /* | |
114 | * Label swap entry static configuration. | |
115 | */ | |
d62a17ae | 116 | struct zebra_slsp_t_ { |
117 | /* Incoming label */ | |
118 | zebra_ile_t ile; | |
54d48ea1 | 119 | |
d62a17ae | 120 | /* List of outgoing nexthop static configuration */ |
121 | zebra_snhlfe_t *snhlfe_list; | |
54d48ea1 | 122 | }; |
123 | ||
124 | /* | |
125 | * Label swap entry (ile -> list of nhlfes) | |
126 | */ | |
d62a17ae | 127 | struct zebra_lsp_t_ { |
128 | /* Incoming label */ | |
129 | zebra_ile_t ile; | |
54d48ea1 | 130 | |
d62a17ae | 131 | /* List of NHLFE, pointer to best and num equal-cost. */ |
132 | zebra_nhlfe_t *nhlfe_list; | |
133 | zebra_nhlfe_t *best_nhlfe; | |
134 | u_int32_t num_ecmp; | |
54d48ea1 | 135 | |
d62a17ae | 136 | /* Flags */ |
137 | u_int32_t flags; | |
54d48ea1 | 138 | #define LSP_FLAG_SCHEDULED (1 << 0) |
139 | #define LSP_FLAG_INSTALLED (1 << 1) | |
140 | #define LSP_FLAG_CHANGED (1 << 2) | |
141 | ||
d62a17ae | 142 | /* Address-family of NHLFE - saved here for delete. All NHLFEs */ |
143 | /* have to be of the same AF */ | |
144 | u_char addr_family; | |
54d48ea1 | 145 | }; |
146 | ||
f31e084c DS |
147 | /* |
148 | * FEC to label binding. | |
149 | */ | |
d62a17ae | 150 | struct zebra_fec_t_ { |
151 | /* FEC (prefix) */ | |
152 | struct route_node *rn; | |
f31e084c | 153 | |
d62a17ae | 154 | /* In-label - either statically bound or derived from label block. */ |
155 | mpls_label_t label; | |
f31e084c | 156 | |
d62a17ae | 157 | /* Label index (into global label block), if valid */ |
158 | u_int32_t label_index; | |
28d58fd7 | 159 | |
d62a17ae | 160 | /* Flags. */ |
161 | u_int32_t flags; | |
f31e084c | 162 | #define FEC_FLAG_CONFIGURED (1 << 0) |
5aba114a | 163 | |
d62a17ae | 164 | /* Clients interested in this FEC. */ |
165 | struct list *client_list; | |
f31e084c | 166 | }; |
54d48ea1 | 167 | |
7758e3f3 | 168 | /* Function declarations. */ |
169 | ||
a22f3f5d | 170 | /* |
171 | * String to label conversion, labels separated by '/'. | |
172 | */ | |
d62a17ae | 173 | int mpls_str2label(const char *label_str, u_int8_t *num_labels, |
174 | mpls_label_t *labels); | |
a22f3f5d | 175 | |
176 | /* | |
177 | * Label to string conversion, labels in string separated by '/'. | |
178 | */ | |
d62a17ae | 179 | char *mpls_label2str(u_int8_t num_labels, mpls_label_t *labels, char *buf, |
180 | int len, int pretty); | |
a22f3f5d | 181 | |
1b6d5c7e VV |
182 | /* |
183 | * Add/update global label block. | |
184 | */ | |
d62a17ae | 185 | int zebra_mpls_label_block_add(struct zebra_vrf *zvrf, u_int32_t start_label, |
186 | u_int32_t end_label); | |
1b6d5c7e VV |
187 | |
188 | /* | |
189 | * Delete global label block. | |
190 | */ | |
d62a17ae | 191 | int zebra_mpls_label_block_del(struct zebra_vrf *vrf); |
1b6d5c7e VV |
192 | |
193 | /* | |
194 | * Display MPLS global label block configuration (VTY command handler). | |
195 | */ | |
d62a17ae | 196 | int zebra_mpls_write_label_block_config(struct vty *vty, struct zebra_vrf *vrf); |
1b6d5c7e | 197 | |
a64448ba DS |
198 | /* |
199 | * Install dynamic LSP entry. | |
200 | */ | |
d62a17ae | 201 | int zebra_mpls_lsp_install(struct zebra_vrf *zvrf, struct route_node *rn, |
202 | struct route_entry *re); | |
a64448ba DS |
203 | |
204 | /* | |
d62a17ae | 205 | * Uninstall dynamic LSP entry, if any. |
a64448ba | 206 | */ |
d62a17ae | 207 | int zebra_mpls_lsp_uninstall(struct zebra_vrf *zvrf, struct route_node *rn, |
208 | struct route_entry *re); | |
a64448ba | 209 | |
5aba114a DS |
210 | /* |
211 | * Registration from a client for the label binding for a FEC. If a binding | |
212 | * already exists, it is informed to the client. | |
28d58fd7 VV |
213 | * NOTE: If there is a manually configured label binding, that is used. |
214 | * Otherwise, if aa label index is specified, it means we have to allocate the | |
215 | * label from a locally configured label block (SRGB), if one exists and index | |
216 | * is acceptable. | |
5aba114a | 217 | */ |
d62a17ae | 218 | int zebra_mpls_fec_register(struct zebra_vrf *zvrf, struct prefix *p, |
219 | u_int32_t label_index, struct zserv *client); | |
5aba114a DS |
220 | |
221 | /* | |
222 | * Deregistration from a client for the label binding for a FEC. The FEC | |
223 | * itself is deleted if no other registered clients exist and there is no | |
224 | * label bound to the FEC. | |
225 | */ | |
d62a17ae | 226 | int zebra_mpls_fec_unregister(struct zebra_vrf *zvrf, struct prefix *p, |
227 | struct zserv *client); | |
5aba114a DS |
228 | |
229 | /* | |
230 | * Cleanup any FECs registered by this client. | |
231 | */ | |
d62a17ae | 232 | int zebra_mpls_cleanup_fecs_for_client(struct zebra_vrf *zvrf, |
233 | struct zserv *client); | |
5aba114a | 234 | |
f31e084c DS |
235 | /* |
236 | * Return FEC (if any) to which this label is bound. | |
237 | * Note: Only works for per-prefix binding and when the label is not | |
238 | * implicit-null. | |
239 | * TODO: Currently walks entire table, can optimize later with another | |
240 | * hash.. | |
241 | */ | |
d62a17ae | 242 | zebra_fec_t *zebra_mpls_fec_for_label(struct zebra_vrf *zvrf, |
243 | mpls_label_t label); | |
f31e084c DS |
244 | |
245 | /* | |
246 | * Inform if specified label is currently bound to a FEC or not. | |
247 | */ | |
d62a17ae | 248 | int zebra_mpls_label_already_bound(struct zebra_vrf *zvrf, mpls_label_t label); |
f31e084c DS |
249 | |
250 | /* | |
5aba114a | 251 | * Add static FEC to label binding. If there are clients registered for this |
a64448ba DS |
252 | * FEC, notify them. If there are labeled routes for this FEC, install the |
253 | * label forwarding entry. | |
f31e084c | 254 | */ |
d62a17ae | 255 | int zebra_mpls_static_fec_add(struct zebra_vrf *zvrf, struct prefix *p, |
256 | mpls_label_t in_label); | |
f31e084c DS |
257 | |
258 | /* | |
5aba114a DS |
259 | * Remove static FEC to label binding. If there are no clients registered |
260 | * for this FEC, delete the FEC; else notify clients. | |
28d58fd7 VV |
261 | * Note: Upon delete of static binding, if label index exists for this FEC, |
262 | * client may need to be updated with derived label. | |
f31e084c | 263 | */ |
d62a17ae | 264 | int zebra_mpls_static_fec_del(struct zebra_vrf *zvrf, struct prefix *p); |
f31e084c DS |
265 | |
266 | /* | |
267 | * Display MPLS FEC to label binding configuration (VTY command handler). | |
268 | */ | |
d62a17ae | 269 | int zebra_mpls_write_fec_config(struct vty *vty, struct zebra_vrf *zvrf); |
f31e084c DS |
270 | |
271 | /* | |
272 | * Display MPLS FEC to label binding (VTY command handler). | |
273 | */ | |
d62a17ae | 274 | void zebra_mpls_print_fec_table(struct vty *vty, struct zebra_vrf *zvrf); |
f31e084c DS |
275 | |
276 | /* | |
277 | * Display MPLS FEC to label binding for a specific FEC (VTY command handler). | |
278 | */ | |
d62a17ae | 279 | void zebra_mpls_print_fec(struct vty *vty, struct zebra_vrf *zvrf, |
280 | struct prefix *p); | |
f31e084c | 281 | |
ce549947 RW |
282 | /* |
283 | * Install/uninstall a FEC-To-NHLFE (FTN) binding. | |
284 | */ | |
d62a17ae | 285 | int mpls_ftn_update(int add, struct zebra_vrf *zvrf, enum lsp_types_t type, |
286 | struct prefix *prefix, enum nexthop_types_t gtype, | |
287 | union g_addr *gate, ifindex_t ifindex, u_int8_t distance, | |
288 | mpls_label_t out_label); | |
ce549947 RW |
289 | |
290 | /* | |
291 | * Install/update a NHLFE for an LSP in the forwarding table. This may be | |
292 | * a new LSP entry or a new NHLFE for an existing in-label or an update of | |
293 | * the out-label for an existing NHLFE (update case). | |
294 | */ | |
d62a17ae | 295 | int mpls_lsp_install(struct zebra_vrf *zvrf, enum lsp_types_t type, |
296 | mpls_label_t in_label, mpls_label_t out_label, | |
297 | enum nexthop_types_t gtype, union g_addr *gate, | |
298 | ifindex_t ifindex); | |
ce549947 RW |
299 | |
300 | /* | |
301 | * Uninstall a particular NHLFE in the forwarding table. If this is | |
302 | * the only NHLFE, the entire LSP forwarding entry has to be deleted. | |
303 | */ | |
d62a17ae | 304 | int mpls_lsp_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type, |
305 | mpls_label_t in_label, enum nexthop_types_t gtype, | |
306 | union g_addr *gate, ifindex_t ifindex); | |
ce549947 RW |
307 | |
308 | /* | |
309 | * Uninstall all LDP NHLFEs for a particular LSP forwarding entry. | |
310 | * If no other NHLFEs exist, the entry would be deleted. | |
311 | */ | |
d62a17ae | 312 | void mpls_ldp_lsp_uninstall_all(struct hash_backet *backet, void *ctxt); |
ce549947 RW |
313 | |
314 | /* | |
315 | * Uninstall all LDP FEC-To-NHLFE (FTN) bindings of the given address-family. | |
316 | */ | |
d62a17ae | 317 | void mpls_ldp_ftn_uninstall_all(struct zebra_vrf *zvrf, int afi); |
ce549947 | 318 | |
cf9b9f77 OD |
319 | /* |
320 | * Uninstall all Segment Routing NHLFEs for a particular LSP forwarding entry. | |
321 | * If no other NHLFEs exist, the entry would be deleted. | |
322 | */ | |
323 | void mpls_sr_lsp_uninstall_all(struct hash_backet *backet, void *ctxt); | |
324 | ||
1c1cf002 | 325 | #if defined(HAVE_CUMULUS) |
7758e3f3 | 326 | /* |
327 | * Check that the label values used in LSP creation are consistent. The | |
328 | * main criteria is that if there is ECMP, the label operation must still | |
329 | * be consistent - i.e., all paths either do a swap or do PHP. This is due | |
330 | * to current HW restrictions. | |
331 | */ | |
d62a17ae | 332 | int zebra_mpls_lsp_label_consistent(struct zebra_vrf *zvrf, |
333 | mpls_label_t in_label, | |
334 | mpls_label_t out_label, | |
335 | enum nexthop_types_t gtype, | |
336 | union g_addr *gate, ifindex_t ifindex); | |
1c1cf002 | 337 | #endif /* HAVE_CUMULUS */ |
7758e3f3 | 338 | |
339 | /* | |
340 | * Add static LSP entry. This may be the first entry for this incoming label | |
341 | * or an additional nexthop; an existing entry may also have outgoing label | |
342 | * changed. | |
343 | * Note: The label operation (swap or PHP) is common for the LSP entry (all | |
344 | * NHLFEs). | |
345 | */ | |
d62a17ae | 346 | int zebra_mpls_static_lsp_add(struct zebra_vrf *zvrf, mpls_label_t in_label, |
347 | mpls_label_t out_label, | |
348 | enum nexthop_types_t gtype, union g_addr *gate, | |
349 | ifindex_t ifindex); | |
7758e3f3 | 350 | |
351 | /* | |
352 | * Delete static LSP entry. This may be the delete of one particular | |
353 | * NHLFE for this incoming label or the delete of the entire entry (i.e., | |
354 | * all NHLFEs). | |
355 | * NOTE: Delete of the only NHLFE will also end up deleting the entire | |
356 | * LSP configuration. | |
357 | */ | |
d62a17ae | 358 | int zebra_mpls_static_lsp_del(struct zebra_vrf *zvrf, mpls_label_t in_label, |
359 | enum nexthop_types_t gtype, union g_addr *gate, | |
360 | ifindex_t ifindex); | |
7758e3f3 | 361 | |
40c7bdb0 | 362 | /* |
363 | * Schedule all MPLS label forwarding entries for processing. | |
364 | * Called upon changes that may affect one or more of them such as | |
365 | * interface or nexthop state changes. | |
366 | */ | |
d62a17ae | 367 | void zebra_mpls_lsp_schedule(struct zebra_vrf *zvrf); |
40c7bdb0 | 368 | |
3ab18ff2 | 369 | /* |
370 | * Display MPLS label forwarding table for a specific LSP | |
371 | * (VTY command handler). | |
372 | */ | |
d62a17ae | 373 | void zebra_mpls_print_lsp(struct vty *vty, struct zebra_vrf *zvrf, |
374 | mpls_label_t label, u_char use_json); | |
3ab18ff2 | 375 | |
376 | /* | |
377 | * Display MPLS label forwarding table (VTY command handler). | |
378 | */ | |
d62a17ae | 379 | void zebra_mpls_print_lsp_table(struct vty *vty, struct zebra_vrf *zvrf, |
380 | u_char use_json); | |
3ab18ff2 | 381 | |
7758e3f3 | 382 | /* |
383 | * Display MPLS LSP configuration of all static LSPs (VTY command handler). | |
384 | */ | |
d62a17ae | 385 | int zebra_mpls_write_lsp_config(struct vty *vty, struct zebra_vrf *zvrf); |
7758e3f3 | 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 | */ | |
d62a17ae | 415 | static inline u_char 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)); | |
424 | default: | |
425 | return 150; | |
426 | } | |
40c7bdb0 | 427 | } |
428 | ||
429 | /* | |
430 | * Map RIB type to LSP type. Used when labeled-routes from BGP | |
431 | * are converted into LSPs. | |
432 | */ | |
d62a17ae | 433 | static inline enum lsp_types_t lsp_type_from_re_type(int re_type) |
40c7bdb0 | 434 | { |
d62a17ae | 435 | switch (re_type) { |
436 | case ZEBRA_ROUTE_STATIC: | |
437 | return ZEBRA_LSP_STATIC; | |
438 | case ZEBRA_ROUTE_BGP: | |
439 | return ZEBRA_LSP_BGP; | |
440 | default: | |
441 | return ZEBRA_LSP_NONE; | |
442 | } | |
40c7bdb0 | 443 | } |
444 | ||
805444ce RW |
445 | /* |
446 | * Map LSP type to RIB type. | |
447 | */ | |
448 | static inline int re_type_from_lsp_type(enum lsp_types_t lsp_type) | |
449 | { | |
450 | switch (lsp_type) { | |
451 | case ZEBRA_LSP_STATIC: | |
452 | return ZEBRA_ROUTE_STATIC; | |
453 | case ZEBRA_LSP_LDP: | |
454 | return ZEBRA_ROUTE_LDP; | |
455 | case ZEBRA_LSP_BGP: | |
456 | return ZEBRA_ROUTE_BGP; | |
cf9b9f77 | 457 | case ZEBRA_LSP_SR: |
7726c479 | 458 | return ZEBRA_ROUTE_OSPF; |
805444ce RW |
459 | case ZEBRA_LSP_NONE: |
460 | default: | |
461 | return ZEBRA_ROUTE_KERNEL; | |
462 | } | |
463 | } | |
464 | ||
3ab18ff2 | 465 | /* NHLFE type as printable string. */ |
d62a17ae | 466 | static inline const char *nhlfe_type2str(enum lsp_types_t lsp_type) |
3ab18ff2 | 467 | { |
d62a17ae | 468 | switch (lsp_type) { |
469 | case ZEBRA_LSP_STATIC: | |
470 | return "Static"; | |
471 | case ZEBRA_LSP_LDP: | |
472 | return "LDP"; | |
473 | case ZEBRA_LSP_BGP: | |
474 | return "BGP"; | |
cf9b9f77 OD |
475 | case ZEBRA_LSP_SR: |
476 | return "SR"; | |
d62a17ae | 477 | default: |
478 | return "Unknown"; | |
479 | } | |
3ab18ff2 | 480 | } |
481 | ||
d62a17ae | 482 | static inline void mpls_mark_lsps_for_processing(struct zebra_vrf *zvrf) |
939fba27 | 483 | { |
d62a17ae | 484 | if (!zvrf) |
485 | return; | |
939fba27 | 486 | |
d62a17ae | 487 | zvrf->mpls_flags |= MPLS_FLAG_SCHEDULE_LSPS; |
939fba27 | 488 | } |
489 | ||
d62a17ae | 490 | static inline void mpls_unmark_lsps_for_processing(struct zebra_vrf *zvrf) |
939fba27 | 491 | { |
d62a17ae | 492 | if (!zvrf) |
493 | return; | |
939fba27 | 494 | |
d62a17ae | 495 | zvrf->mpls_flags &= ~MPLS_FLAG_SCHEDULE_LSPS; |
939fba27 | 496 | } |
497 | ||
d62a17ae | 498 | static inline int mpls_should_lsps_be_processed(struct zebra_vrf *zvrf) |
939fba27 | 499 | { |
d62a17ae | 500 | if (!zvrf) |
501 | return 0; | |
939fba27 | 502 | |
d62a17ae | 503 | return ((zvrf->mpls_flags & MPLS_FLAG_SCHEDULE_LSPS) ? 1 : 0); |
939fba27 | 504 | } |
505 | ||
fe6c7157 RW |
506 | /* Global variables. */ |
507 | extern int mpls_enabled; | |
508 | ||
54d48ea1 | 509 | #endif /*_ZEBRA_MPLS_H */ |