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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" |
31f937fb | 36 | #include "hook.h" |
54d48ea1 | 37 | |
51e94aa7 EDP |
38 | #ifdef __cplusplus |
39 | extern "C" { | |
40 | #endif | |
54d48ea1 | 41 | |
42 | /* Definitions and macros. */ | |
43 | ||
d62a17ae | 44 | #define NHLFE_FAMILY(nhlfe) \ |
45 | (((nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6 \ | |
46 | || (nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) \ | |
47 | ? AF_INET6 \ | |
48 | : AF_INET) | |
54d48ea1 | 49 | |
ee70f629 | 50 | /* Declare LSP nexthop list types */ |
ee70f629 MS |
51 | PREDECL_DLIST(nhlfe_list); |
52 | ||
54d48ea1 | 53 | /* |
54 | * (Outgoing) nexthop label forwarding entry | |
55 | */ | |
f2595bd5 | 56 | struct zebra_nhlfe { |
d62a17ae | 57 | /* Type of entry - static etc. */ |
58 | enum lsp_types_t type; | |
54d48ea1 | 59 | |
d62a17ae | 60 | /* Nexthop information (with outgoing label) */ |
61 | struct nexthop *nexthop; | |
54d48ea1 | 62 | |
d62a17ae | 63 | /* Backpointer to base entry. */ |
8f74a383 | 64 | struct zebra_lsp *lsp; |
54d48ea1 | 65 | |
d62a17ae | 66 | /* Runtime info - flags, pointers etc. */ |
d7c0a89a | 67 | uint32_t flags; |
54d48ea1 | 68 | #define NHLFE_FLAG_CHANGED (1 << 0) |
69 | #define NHLFE_FLAG_SELECTED (1 << 1) | |
70 | #define NHLFE_FLAG_MULTIPATH (1 << 2) | |
71 | #define NHLFE_FLAG_DELETED (1 << 3) | |
72 | #define NHLFE_FLAG_INSTALLED (1 << 4) | |
cd4bb96f | 73 | #define NHLFE_FLAG_IS_BACKUP (1 << 5) |
54d48ea1 | 74 | |
d7c0a89a | 75 | uint8_t distance; |
ee70f629 MS |
76 | |
77 | /* Linkage for LSPs' lists */ | |
78 | struct nhlfe_list_item list; | |
54d48ea1 | 79 | }; |
80 | ||
81 | /* | |
82 | * Incoming label entry | |
83 | */ | |
a7d2146a | 84 | struct zebra_ile { |
d62a17ae | 85 | mpls_label_t in_label; |
54d48ea1 | 86 | }; |
87 | ||
54d48ea1 | 88 | /* |
89 | * Label swap entry (ile -> list of nhlfes) | |
90 | */ | |
8f74a383 | 91 | struct zebra_lsp { |
d62a17ae | 92 | /* Incoming label */ |
a7d2146a | 93 | struct zebra_ile ile; |
54d48ea1 | 94 | |
ee70f629 MS |
95 | /* List of NHLFEs, pointer to best, and num equal-cost. */ |
96 | struct nhlfe_list_head nhlfe_list; | |
97 | ||
f2595bd5 | 98 | struct zebra_nhlfe *best_nhlfe; |
d7c0a89a | 99 | uint32_t num_ecmp; |
54d48ea1 | 100 | |
cd4bb96f MS |
101 | /* Backup nhlfes, if present. The nexthop in a primary/active nhlfe |
102 | * refers to its backup (if any) by index, so the order of this list | |
103 | * is significant. | |
104 | */ | |
105 | struct nhlfe_list_head backup_nhlfe_list; | |
106 | ||
d62a17ae | 107 | /* Flags */ |
d7c0a89a | 108 | uint32_t flags; |
54d48ea1 | 109 | #define LSP_FLAG_SCHEDULED (1 << 0) |
110 | #define LSP_FLAG_INSTALLED (1 << 1) | |
111 | #define LSP_FLAG_CHANGED (1 << 2) | |
f9bf1ecc | 112 | #define LSP_FLAG_FPM (1 << 3) |
54d48ea1 | 113 | |
d62a17ae | 114 | /* Address-family of NHLFE - saved here for delete. All NHLFEs */ |
115 | /* have to be of the same AF */ | |
d7c0a89a | 116 | uint8_t addr_family; |
54d48ea1 | 117 | }; |
118 | ||
f31e084c DS |
119 | /* |
120 | * FEC to label binding. | |
121 | */ | |
60e36561 | 122 | struct zebra_fec { |
d62a17ae | 123 | /* FEC (prefix) */ |
124 | struct route_node *rn; | |
f31e084c | 125 | |
d62a17ae | 126 | /* In-label - either statically bound or derived from label block. */ |
127 | mpls_label_t label; | |
f31e084c | 128 | |
d62a17ae | 129 | /* Label index (into global label block), if valid */ |
d7c0a89a | 130 | uint32_t label_index; |
28d58fd7 | 131 | |
d62a17ae | 132 | /* Flags. */ |
d7c0a89a | 133 | uint32_t flags; |
f31e084c | 134 | #define FEC_FLAG_CONFIGURED (1 << 0) |
5aba114a | 135 | |
d62a17ae | 136 | /* Clients interested in this FEC. */ |
137 | struct list *client_list; | |
f31e084c | 138 | }; |
54d48ea1 | 139 | |
ee70f629 | 140 | /* Declare typesafe list apis/macros */ |
f2595bd5 | 141 | DECLARE_DLIST(nhlfe_list, struct zebra_nhlfe, list); |
ee70f629 | 142 | |
7758e3f3 | 143 | /* Function declarations. */ |
144 | ||
1b6d5c7e VV |
145 | /* |
146 | * Add/update global label block. | |
147 | */ | |
d7c0a89a QY |
148 | int zebra_mpls_label_block_add(struct zebra_vrf *zvrf, uint32_t start_label, |
149 | uint32_t end_label); | |
1b6d5c7e VV |
150 | |
151 | /* | |
152 | * Delete global label block. | |
153 | */ | |
d62a17ae | 154 | int zebra_mpls_label_block_del(struct zebra_vrf *vrf); |
1b6d5c7e VV |
155 | |
156 | /* | |
157 | * Display MPLS global label block configuration (VTY command handler). | |
158 | */ | |
d62a17ae | 159 | int zebra_mpls_write_label_block_config(struct vty *vty, struct zebra_vrf *vrf); |
1b6d5c7e | 160 | |
a64448ba DS |
161 | /* |
162 | * Install dynamic LSP entry. | |
163 | */ | |
d62a17ae | 164 | int zebra_mpls_lsp_install(struct zebra_vrf *zvrf, struct route_node *rn, |
165 | struct route_entry *re); | |
a64448ba DS |
166 | |
167 | /* | |
d62a17ae | 168 | * Uninstall dynamic LSP entry, if any. |
a64448ba | 169 | */ |
d62a17ae | 170 | int zebra_mpls_lsp_uninstall(struct zebra_vrf *zvrf, struct route_node *rn, |
171 | struct route_entry *re); | |
a64448ba | 172 | |
d4cb23d7 | 173 | /* Add an NHLFE to an LSP, return the newly-added object */ |
f2595bd5 | 174 | struct zebra_nhlfe * |
8f74a383 | 175 | zebra_mpls_lsp_add_nhlfe(struct zebra_lsp *lsp, enum lsp_types_t lsp_type, |
f2595bd5 DS |
176 | enum nexthop_types_t gtype, const union g_addr *gate, |
177 | ifindex_t ifindex, uint8_t num_labels, | |
178 | const mpls_label_t *out_labels); | |
cd4bb96f MS |
179 | |
180 | /* Add or update a backup NHLFE for an LSP; return the object */ | |
f2595bd5 | 181 | struct zebra_nhlfe *zebra_mpls_lsp_add_backup_nhlfe( |
8f74a383 DS |
182 | struct zebra_lsp *lsp, enum lsp_types_t lsp_type, |
183 | enum nexthop_types_t gtype, const union g_addr *gate, ifindex_t ifindex, | |
184 | uint8_t num_labels, const mpls_label_t *out_labels); | |
cd4bb96f MS |
185 | |
186 | /* | |
187 | * Add NHLFE or backup NHLFE to an LSP based on a nexthop. These just maintain | |
188 | * the LSP and NHLFE objects; nothing is scheduled for processing. | |
189 | * Return: the newly-added object | |
190 | */ | |
8f74a383 | 191 | struct zebra_nhlfe *zebra_mpls_lsp_add_nh(struct zebra_lsp *lsp, |
f2595bd5 DS |
192 | enum lsp_types_t lsp_type, |
193 | const struct nexthop *nh); | |
8f74a383 | 194 | struct zebra_nhlfe *zebra_mpls_lsp_add_backup_nh(struct zebra_lsp *lsp, |
f2595bd5 DS |
195 | enum lsp_types_t lsp_type, |
196 | const struct nexthop *nh); | |
d4cb23d7 MS |
197 | |
198 | /* Free an allocated NHLFE */ | |
f2595bd5 | 199 | void zebra_mpls_nhlfe_free(struct zebra_nhlfe *nhlfe); |
d4cb23d7 | 200 | |
d62a17ae | 201 | int zebra_mpls_fec_register(struct zebra_vrf *zvrf, struct prefix *p, |
57592a53 AD |
202 | uint32_t label, uint32_t label_index, |
203 | struct zserv *client); | |
5aba114a DS |
204 | |
205 | /* | |
206 | * Deregistration from a client for the label binding for a FEC. The FEC | |
207 | * itself is deleted if no other registered clients exist and there is no | |
208 | * label bound to the FEC. | |
209 | */ | |
d62a17ae | 210 | int zebra_mpls_fec_unregister(struct zebra_vrf *zvrf, struct prefix *p, |
211 | struct zserv *client); | |
5aba114a | 212 | |
f31e084c DS |
213 | /* |
214 | * Return FEC (if any) to which this label is bound. | |
215 | * Note: Only works for per-prefix binding and when the label is not | |
216 | * implicit-null. | |
217 | * TODO: Currently walks entire table, can optimize later with another | |
218 | * hash.. | |
219 | */ | |
60e36561 DS |
220 | struct zebra_fec *zebra_mpls_fec_for_label(struct zebra_vrf *zvrf, |
221 | mpls_label_t label); | |
f31e084c DS |
222 | |
223 | /* | |
224 | * Inform if specified label is currently bound to a FEC or not. | |
225 | */ | |
d62a17ae | 226 | int zebra_mpls_label_already_bound(struct zebra_vrf *zvrf, mpls_label_t label); |
f31e084c DS |
227 | |
228 | /* | |
5aba114a | 229 | * Add static FEC to label binding. If there are clients registered for this |
a64448ba DS |
230 | * FEC, notify them. If there are labeled routes for this FEC, install the |
231 | * label forwarding entry. | |
f31e084c | 232 | */ |
d62a17ae | 233 | int zebra_mpls_static_fec_add(struct zebra_vrf *zvrf, struct prefix *p, |
234 | mpls_label_t in_label); | |
f31e084c DS |
235 | |
236 | /* | |
5aba114a DS |
237 | * Remove static FEC to label binding. If there are no clients registered |
238 | * for this FEC, delete the FEC; else notify clients. | |
28d58fd7 VV |
239 | * Note: Upon delete of static binding, if label index exists for this FEC, |
240 | * client may need to be updated with derived label. | |
f31e084c | 241 | */ |
d62a17ae | 242 | int zebra_mpls_static_fec_del(struct zebra_vrf *zvrf, struct prefix *p); |
f31e084c DS |
243 | |
244 | /* | |
245 | * Display MPLS FEC to label binding configuration (VTY command handler). | |
246 | */ | |
d62a17ae | 247 | int zebra_mpls_write_fec_config(struct vty *vty, struct zebra_vrf *zvrf); |
f31e084c DS |
248 | |
249 | /* | |
250 | * Display MPLS FEC to label binding (VTY command handler). | |
251 | */ | |
d62a17ae | 252 | void zebra_mpls_print_fec_table(struct vty *vty, struct zebra_vrf *zvrf); |
f31e084c DS |
253 | |
254 | /* | |
255 | * Display MPLS FEC to label binding for a specific FEC (VTY command handler). | |
256 | */ | |
d62a17ae | 257 | void zebra_mpls_print_fec(struct vty *vty, struct zebra_vrf *zvrf, |
258 | struct prefix *p); | |
f31e084c | 259 | |
ce549947 | 260 | /* |
f2e7f4eb MS |
261 | * Handle zapi request to install/uninstall LSP and |
262 | * (optionally) FEC-To-NHLFE (FTN) bindings. | |
53216dff DS |
263 | * |
264 | * mpls_zapi_labels_process -> Installs for future processing | |
265 | * in the meta-q | |
266 | * zebra_mpls_labels_process -> called by the meta-q | |
ce549947 | 267 | */ |
1548fbbc DS |
268 | void mpls_zapi_labels_process(bool add_p, struct zebra_vrf *zvrf, |
269 | const struct zapi_labels *zl); | |
53216dff DS |
270 | void zebra_mpls_zapi_labels_process(bool add_p, struct zebra_vrf *zvrf, |
271 | const struct zapi_labels *zl); | |
ce549947 | 272 | |
ea6b290b RW |
273 | /* |
274 | * Uninstall all NHLFEs bound to a single FEC. | |
53216dff DS |
275 | * |
276 | * mpls_ftn_uninstall -> Called to enqueue into early label processing | |
277 | * via the metaq | |
278 | * zebra_mpls_ftn_uninstall -> Called when we process the meta q | |
279 | * for this item | |
ea6b290b | 280 | */ |
1548fbbc DS |
281 | void mpls_ftn_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type, |
282 | struct prefix *prefix, uint8_t route_type, | |
53216dff DS |
283 | uint8_t route_instance); |
284 | void zebra_mpls_ftn_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type, | |
285 | struct prefix *prefix, uint8_t route_type, | |
286 | uint8_t route_instance); | |
ce549947 RW |
287 | /* |
288 | * Install/update a NHLFE for an LSP in the forwarding table. This may be | |
289 | * a new LSP entry or a new NHLFE for an existing in-label or an update of | |
5065db0a | 290 | * the out-label(s) for an existing NHLFE (update case). |
ce549947 | 291 | */ |
d62a17ae | 292 | int mpls_lsp_install(struct zebra_vrf *zvrf, enum lsp_types_t type, |
5065db0a | 293 | mpls_label_t in_label, uint8_t num_out_labels, |
cd4bb96f | 294 | const mpls_label_t *out_labels, enum nexthop_types_t gtype, |
e4a1ec74 | 295 | const union g_addr *gate, ifindex_t ifindex); |
ce549947 | 296 | |
31f937fb SM |
297 | /* |
298 | * Lookup LSP by its input label. | |
299 | */ | |
8f74a383 | 300 | struct zebra_lsp *mpls_lsp_find(struct zebra_vrf *zvrf, mpls_label_t in_label); |
31f937fb | 301 | |
ce549947 RW |
302 | /* |
303 | * Uninstall a particular NHLFE in the forwarding table. If this is | |
304 | * the only NHLFE, the entire LSP forwarding entry has to be deleted. | |
305 | */ | |
d62a17ae | 306 | int mpls_lsp_uninstall(struct zebra_vrf *zvrf, enum lsp_types_t type, |
307 | mpls_label_t in_label, enum nexthop_types_t gtype, | |
cc1b9746 MS |
308 | const union g_addr *gate, ifindex_t ifindex, |
309 | bool backup_p); | |
ce549947 RW |
310 | |
311 | /* | |
ea6b290b | 312 | * Uninstall all NHLFEs for a particular LSP forwarding entry. |
ce549947 | 313 | */ |
ea6b290b RW |
314 | int mpls_lsp_uninstall_all_vrf(struct zebra_vrf *zvrf, enum lsp_types_t type, |
315 | mpls_label_t in_label); | |
ce549947 | 316 | |
1c1cf002 | 317 | #if defined(HAVE_CUMULUS) |
7758e3f3 | 318 | /* |
319 | * Check that the label values used in LSP creation are consistent. The | |
320 | * main criteria is that if there is ECMP, the label operation must still | |
321 | * be consistent - i.e., all paths either do a swap or do PHP. This is due | |
322 | * to current HW restrictions. | |
323 | */ | |
d62a17ae | 324 | int zebra_mpls_lsp_label_consistent(struct zebra_vrf *zvrf, |
325 | mpls_label_t in_label, | |
326 | mpls_label_t out_label, | |
327 | enum nexthop_types_t gtype, | |
328 | union g_addr *gate, ifindex_t ifindex); | |
1c1cf002 | 329 | #endif /* HAVE_CUMULUS */ |
7758e3f3 | 330 | |
331 | /* | |
332 | * Add static LSP entry. This may be the first entry for this incoming label | |
333 | * or an additional nexthop; an existing entry may also have outgoing label | |
334 | * changed. | |
335 | * Note: The label operation (swap or PHP) is common for the LSP entry (all | |
336 | * NHLFEs). | |
337 | */ | |
d62a17ae | 338 | int zebra_mpls_static_lsp_add(struct zebra_vrf *zvrf, mpls_label_t in_label, |
339 | mpls_label_t out_label, | |
340 | enum nexthop_types_t gtype, union g_addr *gate, | |
341 | ifindex_t ifindex); | |
7758e3f3 | 342 | |
343 | /* | |
344 | * Delete static LSP entry. This may be the delete of one particular | |
345 | * NHLFE for this incoming label or the delete of the entire entry (i.e., | |
346 | * all NHLFEs). | |
347 | * NOTE: Delete of the only NHLFE will also end up deleting the entire | |
348 | * LSP configuration. | |
349 | */ | |
d62a17ae | 350 | int zebra_mpls_static_lsp_del(struct zebra_vrf *zvrf, mpls_label_t in_label, |
351 | enum nexthop_types_t gtype, union g_addr *gate, | |
352 | ifindex_t ifindex); | |
7758e3f3 | 353 | |
d37f4d6c MS |
354 | /* |
355 | * Process LSP update results from zebra dataplane. | |
356 | */ | |
357 | /* Forward ref of dplane update context type */ | |
358 | struct zebra_dplane_ctx; | |
359 | ||
360 | void zebra_mpls_lsp_dplane_result(struct zebra_dplane_ctx *ctx); | |
361 | ||
104e3ad9 MS |
362 | /* Process async dplane notifications. */ |
363 | void zebra_mpls_process_dplane_notify(struct zebra_dplane_ctx *ctx); | |
364 | ||
40c7bdb0 | 365 | /* |
366 | * Schedule all MPLS label forwarding entries for processing. | |
367 | * Called upon changes that may affect one or more of them such as | |
368 | * interface or nexthop state changes. | |
369 | */ | |
d62a17ae | 370 | void zebra_mpls_lsp_schedule(struct zebra_vrf *zvrf); |
40c7bdb0 | 371 | |
3ab18ff2 | 372 | /* |
373 | * Display MPLS label forwarding table for a specific LSP | |
374 | * (VTY command handler). | |
375 | */ | |
d62a17ae | 376 | void zebra_mpls_print_lsp(struct vty *vty, struct zebra_vrf *zvrf, |
9f049418 | 377 | mpls_label_t label, bool use_json); |
3ab18ff2 | 378 | |
379 | /* | |
380 | * Display MPLS label forwarding table (VTY command handler). | |
381 | */ | |
d62a17ae | 382 | void zebra_mpls_print_lsp_table(struct vty *vty, struct zebra_vrf *zvrf, |
9f049418 | 383 | bool use_json); |
3ab18ff2 | 384 | |
7758e3f3 | 385 | /* |
386 | * Display MPLS LSP configuration of all static LSPs (VTY command handler). | |
387 | */ | |
d62a17ae | 388 | int zebra_mpls_write_lsp_config(struct vty *vty, struct zebra_vrf *zvrf); |
7758e3f3 | 389 | |
84915b0a | 390 | /* |
391 | * Called when VRF becomes inactive, cleans up information but keeps | |
392 | * the table itself. | |
393 | * NOTE: Currently supported only for default VRF. | |
394 | */ | |
395 | void zebra_mpls_cleanup_tables(struct zebra_vrf *zvrf); | |
396 | ||
40c7bdb0 | 397 | /* |
398 | * Called upon process exiting, need to delete LSP forwarding | |
399 | * entries from the kernel. | |
400 | * NOTE: Currently supported only for default VRF. | |
401 | */ | |
d62a17ae | 402 | void zebra_mpls_close_tables(struct zebra_vrf *zvrf); |
40c7bdb0 | 403 | |
7758e3f3 | 404 | /* |
405 | * Allocate MPLS tables for this VRF. | |
406 | * NOTE: Currently supported only for default VRF. | |
407 | */ | |
d62a17ae | 408 | void zebra_mpls_init_tables(struct zebra_vrf *zvrf); |
7758e3f3 | 409 | |
c87f5c23 DS |
410 | /* |
411 | * If mpls is turned on *after* FRR is brought | |
412 | * up let's actually notice this and turn on | |
413 | * the relevant bits to make it work. | |
414 | */ | |
415 | void zebra_mpls_turned_on(void); | |
416 | ||
7758e3f3 | 417 | /* |
418 | * Global MPLS initialization. | |
419 | */ | |
d62a17ae | 420 | void zebra_mpls_init(void); |
7758e3f3 | 421 | |
fe6c7157 RW |
422 | /* |
423 | * MPLS VTY. | |
424 | */ | |
d62a17ae | 425 | void zebra_mpls_vty_init(void); |
fe6c7157 | 426 | |
06302ecb DS |
427 | /* |
428 | * When cleaning up a client connection ensure that there are no | |
429 | * vrf labels that need cleaning up too | |
430 | */ | |
431 | void zebra_mpls_client_cleanup_vrf_label(uint8_t proto); | |
432 | ||
40c7bdb0 | 433 | /* Inline functions. */ |
434 | ||
435 | /* | |
436 | * Distance (priority) definition for LSP NHLFE. | |
437 | */ | |
d7c0a89a | 438 | static inline uint8_t lsp_distance(enum lsp_types_t type) |
40c7bdb0 | 439 | { |
0492eea0 RW |
440 | switch (type) { |
441 | case ZEBRA_LSP_STATIC: | |
d62a17ae | 442 | return (route_distance(ZEBRA_ROUTE_STATIC)); |
0492eea0 RW |
443 | case ZEBRA_LSP_LDP: |
444 | return (route_distance(ZEBRA_ROUTE_LDP)); | |
445 | case ZEBRA_LSP_BGP: | |
446 | return (route_distance(ZEBRA_ROUTE_BGP)); | |
339e36d2 DS |
447 | case ZEBRA_LSP_NONE: |
448 | case ZEBRA_LSP_SHARP: | |
4645cb6b | 449 | case ZEBRA_LSP_EVPN: |
635a039e | 450 | case ZEBRA_LSP_OSPF_SR: |
26f6acaf | 451 | case ZEBRA_LSP_ISIS_SR: |
31f937fb | 452 | case ZEBRA_LSP_SRTE: |
0492eea0 RW |
453 | return 150; |
454 | } | |
339e36d2 DS |
455 | |
456 | /* | |
457 | * For some reason certain compilers do not believe | |
458 | * that all the cases have been handled. And | |
459 | * WTF does this work differently than when I removed | |
460 | * the default case???? | |
461 | */ | |
462 | return 150; | |
40c7bdb0 | 463 | } |
464 | ||
465 | /* | |
466 | * Map RIB type to LSP type. Used when labeled-routes from BGP | |
467 | * are converted into LSPs. | |
468 | */ | |
d62a17ae | 469 | static inline enum lsp_types_t lsp_type_from_re_type(int re_type) |
40c7bdb0 | 470 | { |
d62a17ae | 471 | switch (re_type) { |
472 | case ZEBRA_ROUTE_STATIC: | |
473 | return ZEBRA_LSP_STATIC; | |
635a039e RW |
474 | case ZEBRA_ROUTE_LDP: |
475 | return ZEBRA_LSP_LDP; | |
d62a17ae | 476 | case ZEBRA_ROUTE_BGP: |
477 | return ZEBRA_LSP_BGP; | |
635a039e RW |
478 | case ZEBRA_ROUTE_OSPF: |
479 | return ZEBRA_LSP_OSPF_SR; | |
26f6acaf RW |
480 | case ZEBRA_ROUTE_ISIS: |
481 | return ZEBRA_LSP_ISIS_SR; | |
339e36d2 DS |
482 | case ZEBRA_ROUTE_SHARP: |
483 | return ZEBRA_LSP_SHARP; | |
31f937fb SM |
484 | case ZEBRA_ROUTE_SRTE: |
485 | return ZEBRA_LSP_SRTE; | |
d62a17ae | 486 | default: |
487 | return ZEBRA_LSP_NONE; | |
488 | } | |
40c7bdb0 | 489 | } |
490 | ||
805444ce RW |
491 | /* |
492 | * Map LSP type to RIB type. | |
493 | */ | |
494 | static inline int re_type_from_lsp_type(enum lsp_types_t lsp_type) | |
495 | { | |
496 | switch (lsp_type) { | |
497 | case ZEBRA_LSP_STATIC: | |
498 | return ZEBRA_ROUTE_STATIC; | |
499 | case ZEBRA_LSP_LDP: | |
500 | return ZEBRA_ROUTE_LDP; | |
501 | case ZEBRA_LSP_BGP: | |
4645cb6b | 502 | case ZEBRA_LSP_EVPN: |
805444ce | 503 | return ZEBRA_ROUTE_BGP; |
635a039e | 504 | case ZEBRA_LSP_OSPF_SR: |
7726c479 | 505 | return ZEBRA_ROUTE_OSPF; |
26f6acaf RW |
506 | case ZEBRA_LSP_ISIS_SR: |
507 | return ZEBRA_ROUTE_ISIS; | |
805444ce | 508 | case ZEBRA_LSP_NONE: |
805444ce | 509 | return ZEBRA_ROUTE_KERNEL; |
339e36d2 DS |
510 | case ZEBRA_LSP_SHARP: |
511 | return ZEBRA_ROUTE_SHARP; | |
31f937fb SM |
512 | case ZEBRA_LSP_SRTE: |
513 | return ZEBRA_ROUTE_SRTE; | |
805444ce | 514 | } |
339e36d2 DS |
515 | |
516 | /* | |
517 | * For some reason certain compilers do not believe | |
518 | * that all the cases have been handled. And | |
519 | * WTF does this work differently than when I removed | |
520 | * the default case???? | |
521 | */ | |
522 | return ZEBRA_ROUTE_KERNEL; | |
805444ce RW |
523 | } |
524 | ||
3ab18ff2 | 525 | /* NHLFE type as printable string. */ |
d62a17ae | 526 | static inline const char *nhlfe_type2str(enum lsp_types_t lsp_type) |
3ab18ff2 | 527 | { |
d62a17ae | 528 | switch (lsp_type) { |
529 | case ZEBRA_LSP_STATIC: | |
530 | return "Static"; | |
531 | case ZEBRA_LSP_LDP: | |
532 | return "LDP"; | |
533 | case ZEBRA_LSP_BGP: | |
534 | return "BGP"; | |
635a039e RW |
535 | case ZEBRA_LSP_OSPF_SR: |
536 | return "SR (OSPF)"; | |
26f6acaf RW |
537 | case ZEBRA_LSP_ISIS_SR: |
538 | return "SR (IS-IS)"; | |
339e36d2 DS |
539 | case ZEBRA_LSP_SHARP: |
540 | return "SHARP"; | |
31f937fb SM |
541 | case ZEBRA_LSP_SRTE: |
542 | return "SR-TE"; | |
4645cb6b SW |
543 | case ZEBRA_LSP_EVPN: |
544 | return "EVPN"; | |
339e36d2 | 545 | case ZEBRA_LSP_NONE: |
d62a17ae | 546 | return "Unknown"; |
547 | } | |
339e36d2 DS |
548 | |
549 | /* | |
550 | * For some reason certain compilers do not believe | |
551 | * that all the cases have been handled. And | |
552 | * WTF does this work differently than when I removed | |
553 | * the default case???? | |
554 | */ | |
555 | return "Unknown"; | |
3ab18ff2 | 556 | } |
557 | ||
a1494c25 DS |
558 | static inline void mpls_mark_lsps_for_processing(struct zebra_vrf *zvrf, |
559 | struct prefix *p) | |
939fba27 | 560 | { |
a1494c25 DS |
561 | struct route_table *table; |
562 | struct route_node *rn; | |
563 | rib_dest_t *dest; | |
564 | ||
d62a17ae | 565 | if (!zvrf) |
566 | return; | |
939fba27 | 567 | |
a1494c25 DS |
568 | table = zvrf->table[family2afi(p->family)][SAFI_UNICAST]; |
569 | if (!table) | |
570 | return; | |
571 | ||
572 | rn = route_node_match(table, p); | |
573 | if (!rn) | |
574 | return; | |
575 | ||
576 | ||
577 | dest = rib_dest_from_rnode(rn); | |
578 | SET_FLAG(dest->flags, RIB_DEST_UPDATE_LSPS); | |
939fba27 | 579 | } |
580 | ||
a1494c25 | 581 | static inline void mpls_unmark_lsps_for_processing(struct route_node *rn) |
939fba27 | 582 | { |
a1494c25 | 583 | rib_dest_t *dest = rib_dest_from_rnode(rn); |
939fba27 | 584 | |
a1494c25 | 585 | UNSET_FLAG(dest->flags, RIB_DEST_UPDATE_LSPS); |
939fba27 | 586 | } |
587 | ||
a1494c25 | 588 | static inline int mpls_should_lsps_be_processed(struct route_node *rn) |
939fba27 | 589 | { |
a1494c25 | 590 | rib_dest_t *dest = rib_dest_from_rnode(rn); |
939fba27 | 591 | |
a1494c25 | 592 | return !!CHECK_FLAG(dest->flags, RIB_DEST_UPDATE_LSPS); |
939fba27 | 593 | } |
594 | ||
fe6c7157 | 595 | /* Global variables. */ |
c87f5c23 | 596 | extern bool mpls_enabled; |
6fb35808 | 597 | extern bool mpls_pw_reach_strict; /* Strict pseudowire reachability checking */ |
fe6c7157 | 598 | |
51e94aa7 EDP |
599 | #ifdef __cplusplus |
600 | } | |
601 | #endif | |
602 | ||
54d48ea1 | 603 | #endif /*_ZEBRA_MPLS_H */ |