]>
Commit | Line | Data |
---|---|---|
efba0985 SM |
1 | /* |
2 | * Copyright (C) 2020 NetDEF, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the Free | |
6 | * Software Foundation; either version 2 of the License, or (at your option) | |
7 | * any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; see the file COPYING; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
17 | */ | |
18 | ||
74971473 JG |
19 | #include <zebra.h> |
20 | ||
c7479286 DL |
21 | #include "memory.h" |
22 | ||
efba0985 | 23 | #include <debug.h> |
74971473 JG |
24 | #include "pceplib/pcep_utils_counters.h" |
25 | #include "pceplib/pcep_timers.h" | |
efba0985 | 26 | #include "pathd/path_errors.h" |
efba0985 SM |
27 | #include "pathd/path_pcep.h" |
28 | #include "pathd/path_pcep_lib.h" | |
29 | #include "pathd/path_pcep_debug.h" | |
c7479286 DL |
30 | |
31 | DEFINE_MTYPE_STATIC(PATHD, PCEPLIB_INFRA, "PCEPlib Infrastructure"); | |
32 | DEFINE_MTYPE_STATIC(PATHD, PCEPLIB_MESSAGES, "PCEPlib PCEP Messages"); | |
efba0985 SM |
33 | |
34 | #define CLASS_TYPE(CLASS, TYPE) (((CLASS) << 16) | (TYPE)) | |
35 | #define DEFAULT_LSAP_SETUP_PRIO 4 | |
36 | #define DEFAULT_LSAP_HOLDING_PRIO 4 | |
37 | #define DEFAULT_LSAP_LOCAL_PRETECTION false | |
56634922 | 38 | #define MAX_PATH_NAME_SIZE 255 |
efba0985 SM |
39 | |
40 | /* pceplib logging callback */ | |
41 | static int pceplib_logging_cb(int level, const char *fmt, va_list args); | |
42 | ||
43 | /* Socket callbacks */ | |
44 | static int pcep_lib_pceplib_socket_read_cb(void *fpt, void **thread, int fd, | |
45 | void *payload); | |
46 | static int pcep_lib_pceplib_socket_write_cb(void *fpt, void **thread, int fd, | |
47 | void *payload); | |
cc9f21da DS |
48 | static void pcep_lib_socket_read_ready(struct thread *thread); |
49 | static void pcep_lib_socket_write_ready(struct thread *thread); | |
efba0985 SM |
50 | |
51 | /* pceplib pcep_event callbacks */ | |
52 | static void pcep_lib_pceplib_event_cb(void *fpt, pcep_event *event); | |
53 | ||
54 | /* pceplib pthread creation callback */ | |
55 | static int pcep_lib_pthread_create_cb(pthread_t *pthread_id, | |
56 | const pthread_attr_t *attr, | |
57 | void *(*start_routine)(void *), | |
58 | void *data, const char *thread_name); | |
59 | void *pcep_lib_pthread_start_passthrough(void *data); | |
60 | int pcep_lib_pthread_stop_cb(struct frr_pthread *, void **); | |
61 | ||
62 | /* Internal functions */ | |
63 | static double_linked_list *pcep_lib_format_path(struct pcep_caps *caps, | |
64 | struct path *path); | |
65 | static void pcep_lib_format_constraints(struct path *path, | |
66 | double_linked_list *objs); | |
67 | static void pcep_lib_parse_open(struct pcep_caps *caps, | |
68 | struct pcep_object_open *open); | |
69 | static void | |
70 | pcep_lib_parse_open_pce_capability(struct pcep_caps *caps, | |
71 | struct pcep_object_tlv_header *tlv_header); | |
72 | static void | |
73 | pcep_lib_parse_open_objfun_list(struct pcep_caps *caps, | |
74 | struct pcep_object_tlv_header *tlv_header); | |
75 | static void pcep_lib_parse_rp(struct path *path, struct pcep_object_rp *rp); | |
76 | static void pcep_lib_parse_srp(struct path *path, struct pcep_object_srp *srp); | |
77 | static void pcep_lib_parse_lsp(struct path *path, struct pcep_object_lsp *lsp); | |
78 | static void pcep_lib_parse_lspa(struct path *path, | |
79 | struct pcep_object_lspa *lspa); | |
56634922 JG |
80 | static void pcep_lib_parse_lsp_symbolic_name( |
81 | struct path *path, struct pcep_object_tlv_symbolic_path_name *tlv); | |
efba0985 SM |
82 | static void pcep_lib_parse_metric(struct path *path, |
83 | struct pcep_object_metric *obj); | |
56634922 JG |
84 | static void |
85 | pcep_lib_parse_endpoints_ipv4(struct path *path, | |
86 | struct pcep_object_endpoints_ipv4 *obj); | |
87 | static void | |
88 | pcep_lib_parse_endpoints_ipv6(struct path *path, | |
89 | struct pcep_object_endpoints_ipv6 *obj); | |
90 | static void pcep_lib_parse_vendor_info(struct path *path, | |
91 | struct pcep_object_vendor_info *obj); | |
efba0985 SM |
92 | static void pcep_lib_parse_ero(struct path *path, struct pcep_object_ro *ero); |
93 | static struct path_hop *pcep_lib_parse_ero_sr(struct path_hop *next, | |
94 | struct pcep_ro_subobj_sr *sr); | |
95 | static struct counters_group *copy_counter_group(struct counters_group *from); | |
96 | static struct counters_subgroup * | |
97 | copy_counter_subgroup(struct counters_subgroup *from); | |
98 | static struct counter *copy_counter(struct counter *from); | |
99 | static void free_counter_group(struct counters_group *group); | |
100 | static void free_counter_subgroup(struct counters_subgroup *subgroup); | |
101 | static void free_counter(struct counter *counter); | |
102 | ||
103 | struct pcep_lib_pthread_passthrough_data { | |
104 | void *(*start_routine)(void *data); | |
105 | void *data; | |
106 | }; | |
107 | ||
108 | /* ------------ API Functions ------------ */ | |
109 | ||
110 | int pcep_lib_initialize(struct frr_pthread *fpt) | |
111 | { | |
112 | PCEP_DEBUG("Initializing pceplib"); | |
113 | ||
114 | /* Register pceplib logging callback */ | |
115 | register_logger(pceplib_logging_cb); | |
116 | ||
117 | /* Its ok that this object goes out of scope, as it | |
118 | * wont be stored, and its values will be copied */ | |
119 | struct pceplib_infra_config infra = { | |
120 | /* Memory infrastructure */ | |
121 | .pceplib_infra_mt = MTYPE_PCEPLIB_INFRA, | |
122 | .pceplib_messages_mt = MTYPE_PCEPLIB_MESSAGES, | |
123 | .malloc_func = (pceplib_malloc_func)qmalloc, | |
124 | .calloc_func = (pceplib_calloc_func)qcalloc, | |
125 | .realloc_func = (pceplib_realloc_func)qrealloc, | |
126 | .strdup_func = (pceplib_strdup_func)qstrdup, | |
127 | .free_func = (pceplib_free_func)qfree, | |
128 | /* Timers infrastructure */ | |
129 | .external_infra_data = fpt, | |
130 | .socket_read_func = pcep_lib_pceplib_socket_read_cb, | |
131 | .socket_write_func = pcep_lib_pceplib_socket_write_cb, | |
132 | /* PCEP events */ | |
133 | .pcep_event_func = pcep_lib_pceplib_event_cb, | |
134 | /* PCEPlib pthread creation callback */ | |
135 | .pthread_create_func = pcep_lib_pthread_create_cb}; | |
136 | if (!initialize_pcc_infra(&infra)) { | |
137 | flog_err(EC_PATH_PCEP_PCC_INIT, "failed to initialize pceplib"); | |
138 | return 1; | |
139 | } | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | void pcep_lib_finalize(void) | |
145 | { | |
146 | PCEP_DEBUG("Finalizing pceplib"); | |
147 | if (!destroy_pcc()) { | |
148 | flog_err(EC_PATH_PCEP_PCC_FINI, "failed to finalize pceplib"); | |
149 | } | |
150 | } | |
151 | ||
152 | ||
153 | pcep_session * | |
154 | pcep_lib_connect(struct ipaddr *src_addr, int src_port, struct ipaddr *dst_addr, | |
155 | int dst_port, short msd, | |
156 | const struct pcep_config_group_opts *pcep_options) | |
157 | { | |
158 | pcep_configuration *config; | |
159 | pcep_session *sess; | |
160 | ||
161 | config = create_default_pcep_configuration(); | |
162 | config->dst_pcep_port = dst_port; | |
163 | config->src_pcep_port = src_port; | |
164 | if (IS_IPADDR_V6(src_addr)) { | |
165 | config->is_src_ipv6 = true; | |
166 | memcpy(&config->src_ip.src_ipv6, &src_addr->ipaddr_v6, | |
167 | sizeof(struct in6_addr)); | |
168 | } else { | |
169 | config->is_src_ipv6 = false; | |
170 | config->src_ip.src_ipv4 = src_addr->ipaddr_v4; | |
171 | } | |
172 | ||
173 | config->support_stateful_pce_lsp_update = true; | |
56634922 | 174 | config->support_pce_lsp_instantiation = pcep_options->pce_initiated; |
efba0985 SM |
175 | config->support_include_db_version = false; |
176 | config->support_lsp_triggered_resync = false; | |
177 | config->support_lsp_delta_sync = false; | |
178 | config->support_pce_triggered_initial_sync = false; | |
179 | config->support_sr_te_pst = true; | |
180 | config->pcc_can_resolve_nai_to_sid = false; | |
181 | ||
182 | config->max_sid_depth = msd; | |
183 | config->pcep_msg_versioning->draft_ietf_pce_segment_routing_07 = | |
184 | pcep_options->draft07; | |
185 | config->keep_alive_seconds = pcep_options->keep_alive_seconds; | |
186 | config->min_keep_alive_seconds = pcep_options->min_keep_alive_seconds; | |
187 | config->max_keep_alive_seconds = pcep_options->max_keep_alive_seconds; | |
188 | config->dead_timer_seconds = pcep_options->dead_timer_seconds; | |
189 | config->min_dead_timer_seconds = pcep_options->min_dead_timer_seconds; | |
190 | config->max_dead_timer_seconds = pcep_options->max_dead_timer_seconds; | |
191 | config->request_time_seconds = pcep_options->pcep_request_time_seconds; | |
192 | /* TODO when available in the pceplib, set it here | |
193 | pcep_options->state_timeout_inteval_seconds;*/ | |
194 | ||
74971473 | 195 | if (pcep_options->tcp_md5_auth[0] != '\0') { |
efba0985 | 196 | config->is_tcp_auth_md5 = true; |
74971473 JG |
197 | strlcpy(config->tcp_authentication_str, |
198 | pcep_options->tcp_md5_auth, | |
199 | sizeof(config->tcp_authentication_str)); | |
efba0985 SM |
200 | } else { |
201 | config->is_tcp_auth_md5 = false; | |
202 | } | |
203 | ||
204 | if (IS_IPADDR_V6(dst_addr)) { | |
205 | sess = connect_pce_ipv6(config, &dst_addr->ipaddr_v6); | |
206 | } else { | |
207 | sess = connect_pce(config, &dst_addr->ipaddr_v4); | |
208 | } | |
209 | destroy_pcep_configuration(config); | |
210 | return sess; | |
211 | } | |
212 | ||
213 | void pcep_lib_disconnect(pcep_session *sess) | |
214 | { | |
215 | assert(sess != NULL); | |
216 | disconnect_pce(sess); | |
217 | } | |
218 | ||
219 | /* Callback passed to pceplib to write to a socket. | |
220 | * When the socket is ready to be written to, | |
221 | * pcep_lib_socket_write_ready() will be called */ | |
222 | ||
223 | int pcep_lib_pceplib_socket_write_cb(void *fpt, void **thread, int fd, | |
224 | void *payload) | |
225 | { | |
226 | return pcep_thread_socket_write(fpt, thread, fd, payload, | |
227 | pcep_lib_socket_write_ready); | |
228 | } | |
229 | ||
230 | /* Callback passed to pceplib to read from a socket. | |
231 | * When the socket is ready to be read from, | |
232 | * pcep_lib_socket_read_ready() will be called */ | |
233 | ||
234 | int pcep_lib_pceplib_socket_read_cb(void *fpt, void **thread, int fd, | |
235 | void *payload) | |
236 | { | |
237 | return pcep_thread_socket_read(fpt, thread, fd, payload, | |
238 | pcep_lib_socket_read_ready); | |
239 | } | |
240 | ||
241 | /* Callbacks called by path_pcep_controller when a socket is ready to read/write | |
242 | */ | |
243 | ||
cc9f21da | 244 | void pcep_lib_socket_write_ready(struct thread *thread) |
efba0985 SM |
245 | { |
246 | struct pcep_ctrl_socket_data *data = THREAD_ARG(thread); | |
247 | assert(data != NULL); | |
248 | ||
cc9f21da | 249 | pceplib_external_socket_write(data->fd, data->payload); |
efba0985 | 250 | XFREE(MTYPE_PCEP, data); |
efba0985 SM |
251 | } |
252 | ||
cc9f21da | 253 | void pcep_lib_socket_read_ready(struct thread *thread) |
efba0985 SM |
254 | { |
255 | struct pcep_ctrl_socket_data *data = THREAD_ARG(thread); | |
256 | assert(data != NULL); | |
257 | ||
cc9f21da | 258 | pceplib_external_socket_read(data->fd, data->payload); |
efba0985 | 259 | XFREE(MTYPE_PCEP, data); |
efba0985 SM |
260 | } |
261 | ||
262 | /* Callback passed to pceplib when a pcep_event is ready */ | |
263 | void pcep_lib_pceplib_event_cb(void *fpt, pcep_event *event) | |
264 | { | |
265 | pcep_thread_send_ctrl_event(fpt, event, pcep_thread_pcep_event); | |
266 | } | |
267 | ||
268 | /* Wrapper function around the actual pceplib thread start function */ | |
269 | void *pcep_lib_pthread_start_passthrough(void *data) | |
270 | { | |
271 | struct frr_pthread *fpt = data; | |
272 | struct pcep_lib_pthread_passthrough_data *passthrough_data = fpt->data; | |
273 | void *start_routine_data = passthrough_data->data; | |
274 | void *(*start_routine)(void *) = passthrough_data->start_routine; | |
275 | XFREE(MTYPE_PCEP, passthrough_data); | |
276 | ||
277 | if (start_routine != NULL) { | |
278 | return start_routine(start_routine_data); | |
279 | } | |
280 | ||
281 | return NULL; | |
282 | } | |
283 | ||
284 | int pcep_lib_pthread_create_cb(pthread_t *thread_id, const pthread_attr_t *attr, | |
285 | void *(*start_routine)(void *), void *data, | |
286 | const char *thread_name) | |
287 | { | |
288 | /* Since FRR calls the start_routine with a struct frr_pthread, | |
289 | * we have to store the real data and callback in a passthrough | |
290 | * and pass the actual data the start_routine needs */ | |
291 | struct pcep_lib_pthread_passthrough_data *passthrough_data = XMALLOC( | |
292 | MTYPE_PCEP, sizeof(struct pcep_lib_pthread_passthrough_data)); | |
293 | passthrough_data->data = data; | |
294 | passthrough_data->start_routine = start_routine; | |
295 | ||
296 | struct frr_pthread_attr fpt_attr = { | |
297 | .start = pcep_lib_pthread_start_passthrough, | |
298 | .stop = pcep_lib_pthread_stop_cb}; | |
299 | struct frr_pthread *fpt = | |
5ffdc11e | 300 | frr_pthread_new(&fpt_attr, thread_name, "pcep_lib"); |
efba0985 SM |
301 | if (fpt == NULL) { |
302 | return 1; | |
303 | } | |
304 | ||
305 | fpt->data = passthrough_data; | |
306 | int retval = frr_pthread_run(fpt, attr); | |
307 | if (retval) { | |
308 | return retval; | |
309 | } | |
310 | ||
311 | *thread_id = fpt->thread; | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | int pcep_lib_pthread_stop_cb(struct frr_pthread *fpt, void **res) | |
317 | { | |
318 | pcep_lib_finalize(); | |
319 | frr_pthread_destroy(fpt); | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
324 | struct pcep_message *pcep_lib_format_report(struct pcep_caps *caps, | |
325 | struct path *path) | |
326 | { | |
327 | double_linked_list *objs = pcep_lib_format_path(caps, path); | |
328 | return pcep_msg_create_report(objs); | |
329 | } | |
330 | ||
331 | static struct pcep_object_rp *create_rp(uint32_t reqid) | |
332 | { | |
333 | double_linked_list *rp_tlvs; | |
334 | struct pcep_object_tlv_path_setup_type *setup_type_tlv; | |
335 | struct pcep_object_rp *rp; | |
336 | ||
337 | rp_tlvs = dll_initialize(); | |
338 | setup_type_tlv = pcep_tlv_create_path_setup_type(SR_TE_PST); | |
339 | dll_append(rp_tlvs, setup_type_tlv); | |
340 | ||
341 | rp = pcep_obj_create_rp(0, false, false, false, true, reqid, rp_tlvs); | |
342 | ||
343 | return rp; | |
344 | } | |
345 | ||
346 | struct pcep_message *pcep_lib_format_request(struct pcep_caps *caps, | |
347 | struct path *path) | |
348 | { | |
349 | struct ipaddr *src = &path->pcc_addr; | |
350 | struct ipaddr *dst = &path->nbkey.endpoint; | |
351 | double_linked_list *objs; | |
352 | struct pcep_object_rp *rp; | |
353 | struct pcep_object_endpoints_ipv4 *endpoints_ipv4; | |
354 | struct pcep_object_endpoints_ipv6 *endpoints_ipv6; | |
355 | struct pcep_object_objective_function *of = NULL; | |
356 | enum objfun_type objfun = OBJFUN_UNDEFINED; | |
357 | ||
358 | assert(src->ipa_type == dst->ipa_type); | |
359 | ||
360 | objs = dll_initialize(); | |
361 | rp = create_rp(path->req_id); | |
362 | rp->header.flag_p = true; | |
363 | ||
364 | pcep_lib_format_constraints(path, objs); | |
365 | ||
366 | /* Objective Function */ | |
367 | if (path->has_pcc_objfun) { | |
368 | objfun = path->pcc_objfun; | |
369 | } | |
370 | ||
371 | if (objfun != OBJFUN_UNDEFINED) { | |
372 | of = pcep_obj_create_objective_function(objfun, NULL); | |
373 | assert(of != NULL); | |
374 | of->header.flag_p = path->enforce_pcc_objfun; | |
375 | dll_append(objs, of); | |
376 | } | |
377 | ||
378 | if (IS_IPADDR_V6(src)) { | |
379 | endpoints_ipv6 = pcep_obj_create_endpoint_ipv6(&src->ipaddr_v6, | |
380 | &dst->ipaddr_v6); | |
381 | endpoints_ipv6->header.flag_p = true; | |
382 | return pcep_msg_create_request_ipv6(rp, endpoints_ipv6, objs); | |
383 | } else { | |
384 | endpoints_ipv4 = pcep_obj_create_endpoint_ipv4(&src->ipaddr_v4, | |
385 | &dst->ipaddr_v4); | |
386 | endpoints_ipv4->header.flag_p = true; | |
387 | return pcep_msg_create_request(rp, endpoints_ipv4, objs); | |
388 | } | |
389 | } | |
390 | ||
56634922 JG |
391 | struct pcep_message *pcep_lib_format_error(int error_type, int error_value, |
392 | struct path *path) | |
efba0985 | 393 | { |
56634922 JG |
394 | double_linked_list *objs, *srp_tlvs; |
395 | struct pcep_object_srp *srp; | |
396 | struct pcep_object_tlv_header *tlv; | |
397 | ||
398 | if ((path == NULL) || (path->srp_id == 0)) | |
399 | return pcep_msg_create_error(error_type, error_value); | |
400 | ||
401 | objs = dll_initialize(); | |
402 | srp_tlvs = dll_initialize(); | |
403 | tlv = (struct pcep_object_tlv_header *)pcep_tlv_create_path_setup_type( | |
404 | SR_TE_PST); | |
405 | dll_append(srp_tlvs, tlv); | |
406 | srp = pcep_obj_create_srp(path->do_remove, path->srp_id, srp_tlvs); | |
407 | dll_append(objs, srp); | |
408 | return pcep_msg_create_error_with_objects(error_type, error_value, | |
409 | objs); | |
efba0985 SM |
410 | } |
411 | ||
412 | struct pcep_message *pcep_lib_format_request_cancelled(uint32_t reqid) | |
413 | { | |
414 | struct pcep_object_notify *notify; | |
415 | double_linked_list *objs; | |
416 | struct pcep_object_rp *rp; | |
417 | ||
418 | notify = pcep_obj_create_notify( | |
419 | PCEP_NOTIFY_TYPE_PENDING_REQUEST_CANCELLED, | |
420 | PCEP_NOTIFY_VALUE_PCC_CANCELLED_REQUEST); | |
421 | objs = dll_initialize(); | |
422 | rp = create_rp(reqid); | |
423 | dll_append(objs, rp); | |
424 | ||
425 | return pcep_msg_create_notify(notify, objs); | |
426 | } | |
427 | ||
428 | struct path *pcep_lib_parse_path(struct pcep_message *msg) | |
429 | { | |
430 | struct path *path; | |
431 | double_linked_list *objs = msg->obj_list; | |
432 | double_linked_list_node *node; | |
433 | ||
434 | struct pcep_object_header *obj; | |
435 | struct pcep_object_rp *rp = NULL; | |
436 | struct pcep_object_srp *srp = NULL; | |
437 | struct pcep_object_lsp *lsp = NULL; | |
438 | struct pcep_object_lspa *lspa = NULL; | |
439 | struct pcep_object_ro *ero = NULL; | |
440 | struct pcep_object_metric *metric = NULL; | |
441 | struct pcep_object_bandwidth *bandwidth = NULL; | |
442 | struct pcep_object_objective_function *of = NULL; | |
56634922 JG |
443 | struct pcep_object_endpoints_ipv4 *epv4 = NULL; |
444 | struct pcep_object_endpoints_ipv6 *epv6 = NULL; | |
445 | struct pcep_object_vendor_info *vendor_info = NULL; | |
efba0985 SM |
446 | |
447 | path = pcep_new_path(); | |
448 | ||
449 | for (node = objs->head; node != NULL; node = node->next_node) { | |
450 | obj = (struct pcep_object_header *)node->data; | |
451 | switch (CLASS_TYPE(obj->object_class, obj->object_type)) { | |
452 | case CLASS_TYPE(PCEP_OBJ_CLASS_RP, PCEP_OBJ_TYPE_RP): | |
453 | assert(rp == NULL); | |
454 | rp = (struct pcep_object_rp *)obj; | |
455 | pcep_lib_parse_rp(path, rp); | |
456 | break; | |
457 | case CLASS_TYPE(PCEP_OBJ_CLASS_SRP, PCEP_OBJ_TYPE_SRP): | |
458 | assert(srp == NULL); | |
459 | srp = (struct pcep_object_srp *)obj; | |
460 | pcep_lib_parse_srp(path, srp); | |
461 | break; | |
462 | case CLASS_TYPE(PCEP_OBJ_CLASS_LSP, PCEP_OBJ_TYPE_LSP): | |
463 | /* Only support single LSP per message */ | |
464 | assert(lsp == NULL); | |
465 | lsp = (struct pcep_object_lsp *)obj; | |
466 | pcep_lib_parse_lsp(path, lsp); | |
467 | break; | |
468 | case CLASS_TYPE(PCEP_OBJ_CLASS_LSPA, PCEP_OBJ_TYPE_LSPA): | |
469 | assert(lspa == NULL); | |
470 | lspa = (struct pcep_object_lspa *)obj; | |
471 | pcep_lib_parse_lspa(path, lspa); | |
472 | break; | |
473 | case CLASS_TYPE(PCEP_OBJ_CLASS_ERO, PCEP_OBJ_TYPE_ERO): | |
474 | /* Only support single ERO per message */ | |
475 | assert(ero == NULL); | |
476 | ero = (struct pcep_object_ro *)obj; | |
477 | pcep_lib_parse_ero(path, ero); | |
478 | break; | |
479 | case CLASS_TYPE(PCEP_OBJ_CLASS_METRIC, PCEP_OBJ_TYPE_METRIC): | |
480 | metric = (struct pcep_object_metric *)obj; | |
481 | pcep_lib_parse_metric(path, metric); | |
482 | break; | |
483 | case CLASS_TYPE(PCEP_OBJ_CLASS_BANDWIDTH, | |
484 | PCEP_OBJ_TYPE_BANDWIDTH_REQ): | |
485 | case CLASS_TYPE(PCEP_OBJ_CLASS_BANDWIDTH, | |
486 | PCEP_OBJ_TYPE_BANDWIDTH_CISCO): | |
487 | bandwidth = (struct pcep_object_bandwidth *)obj; | |
488 | path->has_bandwidth = true; | |
489 | path->bandwidth = bandwidth->bandwidth; | |
490 | break; | |
491 | case CLASS_TYPE(PCEP_OBJ_CLASS_NOPATH, PCEP_OBJ_TYPE_NOPATH): | |
492 | path->no_path = true; | |
493 | break; | |
494 | case CLASS_TYPE(PCEP_OBJ_CLASS_OF, PCEP_OBJ_TYPE_OF): | |
495 | of = (struct pcep_object_objective_function *)obj; | |
496 | path->has_pce_objfun = true; | |
497 | path->pce_objfun = of->of_code; | |
498 | break; | |
56634922 JG |
499 | case CLASS_TYPE(PCEP_OBJ_CLASS_ENDPOINTS, |
500 | PCEP_OBJ_TYPE_ENDPOINT_IPV4): | |
501 | epv4 = (struct pcep_object_endpoints_ipv4 *)obj; | |
502 | pcep_lib_parse_endpoints_ipv4(path, epv4); | |
503 | break; | |
504 | case CLASS_TYPE(PCEP_OBJ_CLASS_ENDPOINTS, | |
505 | PCEP_OBJ_TYPE_ENDPOINT_IPV6): | |
506 | epv6 = (struct pcep_object_endpoints_ipv6 *)obj; | |
507 | pcep_lib_parse_endpoints_ipv6(path, epv6); | |
508 | break; | |
509 | case CLASS_TYPE(PCEP_OBJ_CLASS_VENDOR_INFO, | |
510 | PCEP_OBJ_TYPE_VENDOR_INFO): | |
511 | vendor_info = (struct pcep_object_vendor_info *)obj; | |
512 | pcep_lib_parse_vendor_info(path, vendor_info); | |
513 | break; | |
efba0985 SM |
514 | default: |
515 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_OBJECT, | |
516 | "Unexpected PCEP object %s (%u) / %s (%u)", | |
517 | pcep_object_class_name(obj->object_class), | |
518 | obj->object_class, | |
519 | pcep_object_type_name(obj->object_class, | |
520 | obj->object_type), | |
521 | obj->object_type); | |
522 | break; | |
523 | } | |
524 | } | |
525 | ||
526 | return path; | |
527 | } | |
528 | ||
529 | void pcep_lib_parse_capabilities(struct pcep_message *msg, | |
530 | struct pcep_caps *caps) | |
531 | { | |
532 | double_linked_list *objs = msg->obj_list; | |
533 | double_linked_list_node *node; | |
534 | ||
535 | struct pcep_object_header *obj; | |
536 | struct pcep_object_open *open = NULL; | |
537 | ||
538 | for (node = objs->head; node != NULL; node = node->next_node) { | |
539 | obj = (struct pcep_object_header *)node->data; | |
540 | switch (CLASS_TYPE(obj->object_class, obj->object_type)) { | |
541 | case CLASS_TYPE(PCEP_OBJ_CLASS_OPEN, PCEP_OBJ_TYPE_OPEN): | |
542 | assert(open == NULL); | |
543 | open = (struct pcep_object_open *)obj; | |
544 | pcep_lib_parse_open(caps, open); | |
545 | break; | |
546 | default: | |
547 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_OBJECT, | |
548 | "Unexpected PCEP object %s (%u) / %s (%u)", | |
549 | pcep_object_class_name(obj->object_class), | |
550 | obj->object_class, | |
551 | pcep_object_type_name(obj->object_class, | |
552 | obj->object_type), | |
553 | obj->object_type); | |
554 | break; | |
555 | } | |
556 | } | |
557 | } | |
558 | ||
559 | struct counters_group *pcep_lib_copy_counters(pcep_session *sess) | |
560 | { | |
561 | if (!sess || !sess->pcep_session_counters) { | |
562 | return NULL; | |
563 | } | |
564 | ||
565 | return copy_counter_group(sess->pcep_session_counters); | |
566 | } | |
567 | ||
568 | void pcep_lib_free_counters(struct counters_group *counters) | |
569 | { | |
570 | free_counter_group(counters); | |
571 | } | |
572 | ||
573 | pcep_session *pcep_lib_copy_pcep_session(pcep_session *sess) | |
574 | { | |
575 | if (!sess) { | |
576 | return NULL; | |
577 | } | |
578 | ||
579 | pcep_session *copy; | |
580 | copy = XCALLOC(MTYPE_PCEP, sizeof(*copy)); | |
581 | memcpy(copy, sess, sizeof(*copy)); | |
582 | /* These fields should not be accessed */ | |
583 | copy->num_unknown_messages_time_queue = NULL; | |
584 | copy->socket_comm_session = NULL; | |
585 | copy->pcep_session_counters = NULL; | |
586 | ||
587 | return copy; | |
588 | } | |
589 | ||
590 | /* ------------ pceplib logging callback ------------ */ | |
591 | ||
592 | int pceplib_logging_cb(int priority, const char *fmt, va_list args) | |
593 | { | |
594 | char buffer[1024]; | |
595 | vsnprintf(buffer, sizeof(buffer), fmt, args); | |
596 | PCEP_DEBUG_PCEPLIB(priority, "pceplib: %s", buffer); | |
597 | return 0; | |
598 | } | |
599 | ||
600 | /* ------------ Internal Functions ------------ */ | |
601 | ||
602 | double_linked_list *pcep_lib_format_path(struct pcep_caps *caps, | |
603 | struct path *path) | |
604 | { | |
605 | struct in_addr addr_null; | |
606 | double_linked_list *objs, *srp_tlvs, *lsp_tlvs, *ero_objs; | |
607 | struct pcep_object_tlv_header *tlv; | |
608 | struct pcep_object_ro_subobj *ero_obj; | |
609 | struct pcep_object_srp *srp; | |
610 | struct pcep_object_lsp *lsp; | |
611 | struct pcep_object_ro *ero; | |
612 | uint32_t encoded_binding_sid; | |
613 | char binding_sid_lsp_tlv_data[6]; | |
614 | ||
615 | memset(&addr_null, 0, sizeof(addr_null)); | |
616 | ||
617 | objs = dll_initialize(); | |
618 | ||
619 | if (path->plsp_id != 0) { | |
620 | /* SRP object */ | |
621 | srp_tlvs = dll_initialize(); | |
622 | tlv = (struct pcep_object_tlv_header *) | |
623 | pcep_tlv_create_path_setup_type(SR_TE_PST); | |
624 | assert(tlv != NULL); | |
625 | dll_append(srp_tlvs, tlv); | |
626 | srp = pcep_obj_create_srp(path->do_remove, path->srp_id, | |
627 | srp_tlvs); | |
628 | assert(srp != NULL); | |
629 | srp->header.flag_p = true; | |
630 | dll_append(objs, srp); | |
631 | } | |
632 | ||
633 | /* LSP object */ | |
634 | lsp_tlvs = dll_initialize(); | |
635 | ||
636 | if (path->plsp_id == 0 || IS_IPADDR_NONE(&path->nbkey.endpoint) | |
637 | || IS_IPADDR_NONE(&path->pcc_addr)) { | |
638 | tlv = (struct pcep_object_tlv_header *) | |
639 | pcep_tlv_create_ipv4_lsp_identifiers( | |
640 | &addr_null, &addr_null, 0, 0, &addr_null); | |
641 | } else { | |
642 | assert(path->pcc_addr.ipa_type | |
643 | == path->nbkey.endpoint.ipa_type); | |
644 | if (IS_IPADDR_V4(&path->pcc_addr)) { | |
645 | tlv = (struct pcep_object_tlv_header *) | |
646 | pcep_tlv_create_ipv4_lsp_identifiers( | |
647 | &path->pcc_addr.ipaddr_v4, | |
648 | &path->nbkey.endpoint.ipaddr_v4, 0, 0, | |
649 | &path->pcc_addr.ipaddr_v4); | |
650 | } else { | |
651 | tlv = (struct pcep_object_tlv_header *) | |
652 | pcep_tlv_create_ipv6_lsp_identifiers( | |
653 | &path->pcc_addr.ipaddr_v6, | |
654 | &path->nbkey.endpoint.ipaddr_v6, 0, 0, | |
655 | &path->pcc_addr.ipaddr_v6); | |
656 | } | |
657 | } | |
658 | assert(tlv != NULL); | |
659 | dll_append(lsp_tlvs, tlv); | |
660 | if (path->name != NULL) { | |
661 | tlv = (struct pcep_object_tlv_header *) | |
662 | /*FIXME: Remove the typecasty when pceplib is changed | |
663 | to take a const char* */ | |
664 | pcep_tlv_create_symbolic_path_name((char *)path->name, | |
665 | strlen(path->name)); | |
666 | assert(tlv != NULL); | |
667 | dll_append(lsp_tlvs, tlv); | |
668 | } | |
669 | if ((path->plsp_id != 0) && (path->binding_sid != MPLS_LABEL_NONE)) { | |
670 | memset(binding_sid_lsp_tlv_data, 0, 2); | |
671 | encoded_binding_sid = htonl(path->binding_sid << 12); | |
672 | memcpy(binding_sid_lsp_tlv_data + 2, &encoded_binding_sid, 4); | |
673 | tlv = (struct pcep_object_tlv_header *) | |
674 | pcep_tlv_create_tlv_arbitrary( | |
675 | binding_sid_lsp_tlv_data, | |
56634922 JG |
676 | sizeof(binding_sid_lsp_tlv_data), |
677 | PCEP_OBJ_TYPE_CISCO_BSID); | |
efba0985 SM |
678 | assert(tlv != NULL); |
679 | dll_append(lsp_tlvs, tlv); | |
680 | } | |
681 | lsp = pcep_obj_create_lsp( | |
682 | path->plsp_id, path->status, path->was_created /* C Flag */, | |
683 | path->go_active /* A Flag */, path->was_removed /* R Flag */, | |
684 | path->is_synching /* S Flag */, path->is_delegated /* D Flag */, | |
685 | lsp_tlvs); | |
686 | assert(lsp != NULL); | |
687 | lsp->header.flag_p = true; | |
688 | dll_append(objs, lsp); | |
689 | /* ERO object */ | |
690 | ero_objs = dll_initialize(); | |
691 | for (struct path_hop *hop = path->first_hop; hop != NULL; | |
692 | hop = hop->next) { | |
693 | uint32_t sid; | |
694 | ||
695 | /* Only supporting MPLS hops with both sid and nai */ | |
696 | assert(hop->is_mpls); | |
697 | assert(hop->has_sid); | |
698 | ||
699 | if (hop->has_attribs) { | |
700 | sid = ENCODE_SR_ERO_SID(hop->sid.mpls.label, | |
701 | hop->sid.mpls.traffic_class, | |
702 | hop->sid.mpls.is_bottom, | |
703 | hop->sid.mpls.ttl); | |
704 | } else { | |
705 | sid = ENCODE_SR_ERO_SID(hop->sid.mpls.label, 0, 0, 0); | |
706 | } | |
707 | ||
708 | ero_obj = NULL; | |
709 | if (hop->has_nai) { | |
710 | assert(hop->nai.type != PCEP_SR_SUBOBJ_NAI_ABSENT); | |
711 | assert(hop->nai.type | |
712 | != PCEP_SR_SUBOBJ_NAI_LINK_LOCAL_IPV6_ADJACENCY); | |
713 | assert(hop->nai.type != PCEP_SR_SUBOBJ_NAI_UNKNOWN); | |
714 | switch (hop->nai.type) { | |
715 | case PCEP_SR_SUBOBJ_NAI_IPV4_NODE: | |
716 | ero_obj = (struct pcep_object_ro_subobj *) | |
717 | pcep_obj_create_ro_subobj_sr_ipv4_node( | |
718 | hop->is_loose, !hop->has_sid, | |
719 | hop->has_attribs, /* C Flag */ | |
720 | hop->is_mpls, /* M Flag */ | |
721 | sid, | |
722 | &hop->nai.local_addr.ipaddr_v4); | |
723 | break; | |
724 | case PCEP_SR_SUBOBJ_NAI_IPV6_NODE: | |
725 | ero_obj = (struct pcep_object_ro_subobj *) | |
726 | pcep_obj_create_ro_subobj_sr_ipv6_node( | |
727 | hop->is_loose, !hop->has_sid, | |
728 | hop->has_attribs, /* C Flag */ | |
729 | hop->is_mpls, /* M Flag */ | |
730 | sid, | |
731 | &hop->nai.local_addr.ipaddr_v6); | |
732 | break; | |
733 | case PCEP_SR_SUBOBJ_NAI_IPV4_ADJACENCY: | |
734 | ero_obj = (struct pcep_object_ro_subobj *) | |
735 | pcep_obj_create_ro_subobj_sr_ipv4_adj( | |
736 | hop->is_loose, !hop->has_sid, | |
737 | hop->has_attribs, /* C Flag */ | |
738 | hop->is_mpls, /* M Flag */ | |
739 | sid, | |
740 | &hop->nai.local_addr.ipaddr_v4, | |
741 | &hop->nai.remote_addr | |
742 | .ipaddr_v4); | |
743 | break; | |
744 | case PCEP_SR_SUBOBJ_NAI_IPV6_ADJACENCY: | |
745 | ero_obj = (struct pcep_object_ro_subobj *) | |
746 | pcep_obj_create_ro_subobj_sr_ipv6_adj( | |
747 | hop->is_loose, !hop->has_sid, | |
748 | hop->has_attribs, /* C Flag */ | |
749 | hop->is_mpls, /* M Flag */ | |
750 | sid, | |
751 | &hop->nai.local_addr.ipaddr_v6, | |
752 | &hop->nai.remote_addr | |
753 | .ipaddr_v6); | |
754 | break; | |
755 | case PCEP_SR_SUBOBJ_NAI_UNNUMBERED_IPV4_ADJACENCY: | |
756 | ero_obj = (struct pcep_object_ro_subobj *) | |
757 | pcep_obj_create_ro_subobj_sr_unnumbered_ipv4_adj( | |
758 | hop->is_loose, !hop->has_sid, | |
759 | hop->has_attribs, /* C Flag */ | |
760 | hop->is_mpls, /* M Flag */ | |
761 | sid, | |
762 | hop->nai.local_addr.ipaddr_v4 | |
763 | .s_addr, | |
764 | hop->nai.local_iface, | |
765 | hop->nai.remote_addr.ipaddr_v4 | |
766 | .s_addr, | |
767 | hop->nai.remote_iface); | |
768 | break; | |
769 | default: | |
770 | break; | |
771 | } | |
772 | } | |
773 | if (ero_obj == NULL) { | |
774 | ero_obj = (struct pcep_object_ro_subobj *) | |
775 | pcep_obj_create_ro_subobj_sr_nonai( | |
776 | hop->is_loose, sid, | |
777 | hop->has_attribs, /* C Flag */ | |
778 | hop->is_mpls); /* M Flag */ | |
779 | } | |
780 | dll_append(ero_objs, ero_obj); | |
781 | } | |
782 | ero = pcep_obj_create_ero(ero_objs); | |
783 | assert(ero != NULL); | |
784 | ero->header.flag_p = true; | |
785 | dll_append(objs, ero); | |
786 | ||
787 | if (path->plsp_id == 0) { | |
788 | return objs; | |
789 | } | |
790 | ||
791 | pcep_lib_format_constraints(path, objs); | |
792 | ||
793 | return objs; | |
794 | } | |
795 | ||
796 | void pcep_lib_format_constraints(struct path *path, double_linked_list *objs) | |
797 | { | |
798 | struct pcep_object_metric *metric; | |
799 | struct pcep_object_bandwidth *bandwidth; | |
800 | struct pcep_object_lspa *lspa; | |
801 | ||
802 | /* LSPA object */ | |
803 | if (path->has_affinity_filters) { | |
804 | lspa = pcep_obj_create_lspa( | |
805 | path->affinity_filters[AFFINITY_FILTER_EXCLUDE_ANY - 1], | |
806 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ANY - 1], | |
807 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ALL - 1], | |
808 | DEFAULT_LSAP_SETUP_PRIO, DEFAULT_LSAP_HOLDING_PRIO, | |
809 | DEFAULT_LSAP_LOCAL_PRETECTION); | |
810 | assert(lspa != NULL); | |
811 | lspa->header.flag_p = true; | |
812 | dll_append(objs, lspa); | |
813 | } | |
814 | ||
815 | /* Bandwidth Objects */ | |
816 | if (path->has_bandwidth) { | |
817 | /* Requested Bandwidth */ | |
818 | bandwidth = pcep_obj_create_bandwidth(path->bandwidth); | |
819 | assert(bandwidth != NULL); | |
820 | bandwidth->header.flag_p = path->enforce_bandwidth; | |
821 | dll_append(objs, bandwidth); | |
822 | } | |
823 | ||
824 | /* Metric Objects */ | |
825 | for (struct path_metric *m = path->first_metric; m != NULL; | |
826 | m = m->next) { | |
827 | metric = pcep_obj_create_metric(m->type, m->is_bound, | |
828 | m->is_computed, m->value); | |
829 | assert(metric != NULL); | |
830 | metric->header.flag_p = m->enforce; | |
831 | dll_append(objs, metric); | |
832 | } | |
833 | } | |
834 | ||
835 | void pcep_lib_parse_open(struct pcep_caps *caps, struct pcep_object_open *open) | |
836 | { | |
837 | double_linked_list *tlvs = open->header.tlv_list; | |
838 | double_linked_list_node *node; | |
839 | struct pcep_object_tlv_header *tlv_header; | |
840 | ||
841 | caps->is_stateful = false; | |
842 | caps->supported_ofs_are_known = false; | |
843 | caps->supported_ofs = 0; | |
844 | ||
845 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
846 | tlv_header = (struct pcep_object_tlv_header *)node->data; | |
847 | switch (tlv_header->type) { | |
848 | case PCEP_OBJ_TLV_TYPE_STATEFUL_PCE_CAPABILITY: | |
849 | pcep_lib_parse_open_pce_capability(caps, tlv_header); | |
850 | break; | |
851 | case PCEP_OBJ_TLV_TYPE_SR_PCE_CAPABILITY: | |
852 | break; | |
853 | case PCEP_OBJ_TLV_TYPE_OBJECTIVE_FUNCTION_LIST: | |
854 | pcep_lib_parse_open_objfun_list(caps, tlv_header); | |
855 | break; | |
856 | default: | |
857 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
858 | "Unexpected OPEN's TLV %s (%u)", | |
859 | pcep_tlv_type_name(tlv_header->type), | |
860 | tlv_header->type); | |
861 | break; | |
862 | } | |
863 | } | |
864 | } | |
865 | ||
866 | void pcep_lib_parse_open_pce_capability( | |
867 | struct pcep_caps *caps, struct pcep_object_tlv_header *tlv_header) | |
868 | { | |
869 | struct pcep_object_tlv_stateful_pce_capability *tlv; | |
870 | tlv = (struct pcep_object_tlv_stateful_pce_capability *)tlv_header; | |
871 | caps->is_stateful = tlv->flag_u_lsp_update_capability; | |
872 | } | |
873 | ||
874 | void pcep_lib_parse_open_objfun_list(struct pcep_caps *caps, | |
875 | struct pcep_object_tlv_header *tlv_header) | |
876 | { | |
877 | double_linked_list_node *node; | |
878 | struct pcep_object_tlv_of_list *tlv; | |
879 | tlv = (struct pcep_object_tlv_of_list *)tlv_header; | |
880 | uint16_t of_code; | |
881 | caps->supported_ofs_are_known = true; | |
882 | for (node = tlv->of_list->head; node != NULL; node = node->next_node) { | |
883 | of_code = *(uint16_t *)node->data; | |
884 | if (of_code >= 32) { | |
885 | zlog_warn( | |
886 | "Ignoring unexpected objective function with code %u", | |
887 | of_code); | |
888 | continue; | |
889 | } | |
890 | SET_FLAG(caps->supported_ofs, of_code); | |
891 | } | |
892 | } | |
893 | ||
894 | void pcep_lib_parse_rp(struct path *path, struct pcep_object_rp *rp) | |
895 | { | |
896 | double_linked_list *tlvs = rp->header.tlv_list; | |
897 | double_linked_list_node *node; | |
898 | struct pcep_object_tlv_header *tlv; | |
899 | ||
120e524f JG |
900 | if (tlvs == NULL) { |
901 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
902 | "Unexpected Empty RP's TLV plsp-id:(%d)", | |
903 | path ? (int32_t)path->plsp_id : -1); | |
904 | return; | |
905 | } | |
efba0985 SM |
906 | /* We ignore the other flags and priority for now */ |
907 | path->req_id = rp->request_id; | |
908 | path->has_pce_objfun = false; | |
909 | path->pce_objfun = OBJFUN_UNDEFINED; | |
910 | ||
911 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
912 | tlv = (struct pcep_object_tlv_header *)node->data; | |
913 | switch (tlv->type) { | |
914 | case PCEP_OBJ_TLV_TYPE_PATH_SETUP_TYPE: | |
915 | // TODO: enforce the path setup type is SR_TE_PST | |
916 | break; | |
917 | default: | |
918 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
919 | "Unexpected RP's TLV %s (%u)", | |
920 | pcep_tlv_type_name(tlv->type), tlv->type); | |
921 | break; | |
922 | } | |
923 | } | |
924 | } | |
925 | ||
926 | void pcep_lib_parse_srp(struct path *path, struct pcep_object_srp *srp) | |
927 | { | |
928 | double_linked_list *tlvs = srp->header.tlv_list; | |
929 | double_linked_list_node *node; | |
930 | struct pcep_object_tlv_header *tlv; | |
931 | ||
932 | path->do_remove = srp->flag_lsp_remove; | |
933 | path->srp_id = srp->srp_id_number; | |
934 | ||
120e524f JG |
935 | if (tlvs == NULL) { |
936 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
937 | "Unexpected Empty SRP's TLV plsp-id:(%d)", | |
938 | path ? (int32_t)path->plsp_id : -1); | |
939 | return; | |
940 | } | |
efba0985 SM |
941 | for (node = tlvs->head; node != NULL; node = node->next_node) { |
942 | tlv = (struct pcep_object_tlv_header *)node->data; | |
943 | switch (tlv->type) { | |
944 | case PCEP_OBJ_TLV_TYPE_PATH_SETUP_TYPE: | |
945 | // TODO: enforce the path setup type is SR_TE_PST | |
946 | break; | |
947 | default: | |
948 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
949 | "Unexpected SRP's TLV %s (%u)", | |
950 | pcep_tlv_type_name(tlv->type), tlv->type); | |
951 | break; | |
952 | } | |
953 | } | |
954 | } | |
955 | ||
956 | void pcep_lib_parse_lsp(struct path *path, struct pcep_object_lsp *lsp) | |
957 | { | |
958 | double_linked_list *tlvs = lsp->header.tlv_list; | |
959 | double_linked_list_node *node; | |
960 | struct pcep_object_tlv_header *tlv; | |
56634922 JG |
961 | struct pcep_object_tlv_symbolic_path_name *name; |
962 | struct pcep_object_tlv_arbitrary *arb_tlv; | |
efba0985 SM |
963 | |
964 | path->plsp_id = lsp->plsp_id; | |
965 | path->status = lsp->operational_status; | |
966 | path->go_active = lsp->flag_a; | |
967 | path->was_created = lsp->flag_c; | |
968 | path->was_removed = lsp->flag_r; | |
969 | path->is_synching = lsp->flag_s; | |
970 | path->is_delegated = lsp->flag_d; | |
971 | ||
120e524f JG |
972 | if (tlvs == NULL) { |
973 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
974 | "Unexpected Empty LSP's TLV plsp-id:(%d)", | |
975 | path ? (int32_t)path->plsp_id : -1); | |
efba0985 | 976 | return; |
120e524f | 977 | } |
efba0985 SM |
978 | |
979 | for (node = tlvs->head; node != NULL; node = node->next_node) { | |
980 | tlv = (struct pcep_object_tlv_header *)node->data; | |
981 | switch (tlv->type) { | |
56634922 JG |
982 | case PCEP_OBJ_TLV_TYPE_SYMBOLIC_PATH_NAME: |
983 | name = (struct pcep_object_tlv_symbolic_path_name *)tlv; | |
984 | pcep_lib_parse_lsp_symbolic_name(path, name); | |
985 | break; | |
986 | case PCEP_OBJ_TYPE_CISCO_BSID: | |
987 | arb_tlv = (struct pcep_object_tlv_arbitrary *)tlv; | |
988 | memcpy(&path->binding_sid, arb_tlv->data + 2, | |
989 | sizeof(path->binding_sid)); | |
990 | path->binding_sid = ntohl(path->binding_sid); | |
991 | path->binding_sid = (path->binding_sid >> 12); | |
992 | break; | |
efba0985 SM |
993 | default: |
994 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
995 | "Unexpected LSP TLV %s (%u)", | |
996 | pcep_tlv_type_name(tlv->type), tlv->type); | |
997 | break; | |
998 | } | |
999 | } | |
1000 | } | |
1001 | ||
56634922 JG |
1002 | void pcep_lib_parse_lsp_symbolic_name( |
1003 | struct path *path, struct pcep_object_tlv_symbolic_path_name *tlv) | |
1004 | { | |
1005 | uint16_t size = tlv->symbolic_path_name_length; | |
1006 | assert(path->name == NULL); | |
1007 | size = size > MAX_PATH_NAME_SIZE ? MAX_PATH_NAME_SIZE : size; | |
1008 | path->name = XCALLOC(MTYPE_PCEP, size); | |
1009 | strlcpy((char *)path->name, tlv->symbolic_path_name, size + 1); | |
1010 | } | |
1011 | ||
efba0985 SM |
1012 | void pcep_lib_parse_lspa(struct path *path, struct pcep_object_lspa *lspa) |
1013 | { | |
1014 | path->has_affinity_filters = true; | |
1015 | path->affinity_filters[AFFINITY_FILTER_EXCLUDE_ANY - 1] = | |
1016 | lspa->lspa_exclude_any; | |
1017 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ANY - 1] = | |
1018 | lspa->lspa_include_any; | |
1019 | path->affinity_filters[AFFINITY_FILTER_INCLUDE_ALL - 1] = | |
1020 | lspa->lspa_include_all; | |
1021 | } | |
1022 | ||
1023 | void pcep_lib_parse_metric(struct path *path, struct pcep_object_metric *obj) | |
1024 | { | |
1025 | struct path_metric *metric; | |
1026 | ||
1027 | metric = pcep_new_metric(); | |
1028 | metric->type = obj->type; | |
1029 | metric->is_bound = obj->flag_b; | |
1030 | metric->is_computed = obj->flag_c; | |
1031 | metric->value = obj->value; | |
1032 | metric->next = path->first_metric; | |
1033 | path->first_metric = metric; | |
1034 | } | |
1035 | ||
56634922 JG |
1036 | void pcep_lib_parse_endpoints_ipv4(struct path *path, |
1037 | struct pcep_object_endpoints_ipv4 *obj) | |
1038 | { | |
1039 | SET_IPADDR_V4(&path->pcc_addr); | |
1040 | path->pcc_addr.ipaddr_v4 = obj->src_ipv4; | |
1041 | SET_IPADDR_V4(&path->nbkey.endpoint); | |
1042 | path->nbkey.endpoint.ipaddr_v4 = obj->dst_ipv4; | |
1043 | } | |
1044 | ||
1045 | void pcep_lib_parse_endpoints_ipv6(struct path *path, | |
1046 | struct pcep_object_endpoints_ipv6 *obj) | |
1047 | { | |
1048 | SET_IPADDR_V6(&path->pcc_addr); | |
1049 | path->pcc_addr.ipaddr_v6 = obj->src_ipv6; | |
1050 | SET_IPADDR_V6(&path->nbkey.endpoint); | |
1051 | path->nbkey.endpoint.ipaddr_v6 = obj->dst_ipv6; | |
1052 | } | |
1053 | ||
1054 | void pcep_lib_parse_vendor_info(struct path *path, | |
1055 | struct pcep_object_vendor_info *obj) | |
1056 | { | |
1057 | if (obj->enterprise_number == ENTERPRISE_NUMBER_CISCO | |
1058 | && obj->enterprise_specific_info == ENTERPRISE_COLOR_CISCO) | |
1059 | path->nbkey.color = obj->enterprise_specific_info1; | |
1060 | else | |
1061 | path->nbkey.color = 0; | |
1062 | } | |
1063 | ||
efba0985 SM |
1064 | void pcep_lib_parse_ero(struct path *path, struct pcep_object_ro *ero) |
1065 | { | |
1066 | struct path_hop *hop = NULL; | |
1067 | double_linked_list *objs = ero->sub_objects; | |
1068 | double_linked_list_node *node; | |
1069 | struct pcep_object_ro_subobj *obj; | |
1070 | ||
120e524f JG |
1071 | if (objs == NULL) { |
1072 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_TLV, | |
1073 | "Unexpected Empty ERO's sub_obj plsp-id:(%d)", | |
1074 | path ? (int32_t)path->plsp_id : -1); | |
1075 | return; | |
1076 | } | |
efba0985 SM |
1077 | for (node = objs->tail; node != NULL; node = node->prev_node) { |
1078 | obj = (struct pcep_object_ro_subobj *)node->data; | |
1079 | switch (obj->ro_subobj_type) { | |
1080 | case RO_SUBOBJ_TYPE_SR: | |
1081 | hop = pcep_lib_parse_ero_sr( | |
1082 | hop, (struct pcep_ro_subobj_sr *)obj); | |
1083 | break; | |
1084 | default: | |
1085 | flog_warn(EC_PATH_PCEP_UNEXPECTED_PCEP_ERO_SUBOBJ, | |
1086 | "Unexpected ERO sub-object %s (%u)", | |
1087 | pcep_ro_type_name(obj->ro_subobj_type), | |
1088 | obj->ro_subobj_type); | |
1089 | break; | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | path->first_hop = hop; | |
1094 | } | |
1095 | ||
1096 | struct path_hop *pcep_lib_parse_ero_sr(struct path_hop *next, | |
1097 | struct pcep_ro_subobj_sr *sr) | |
1098 | { | |
1099 | struct path_hop *hop = NULL; | |
1100 | union sid sid; | |
1101 | ||
1102 | /* Only support IPv4 node with SID */ | |
1103 | assert(!sr->flag_s); | |
1104 | ||
1105 | if (sr->flag_m) { | |
1106 | sid.mpls = (struct sid_mpls){ | |
1107 | .label = GET_SR_ERO_SID_LABEL(sr->sid), | |
1108 | .traffic_class = GET_SR_ERO_SID_TC(sr->sid), | |
1109 | .is_bottom = GET_SR_ERO_SID_S(sr->sid), | |
1110 | .ttl = GET_SR_ERO_SID_TTL(sr->sid)}; | |
1111 | } else { | |
1112 | sid.value = sr->sid; | |
1113 | } | |
1114 | ||
1115 | hop = pcep_new_hop(); | |
1116 | *hop = (struct path_hop){.next = next, | |
1117 | .is_loose = | |
1118 | sr->ro_subobj.flag_subobj_loose_hop, | |
1119 | .has_sid = !sr->flag_s, | |
1120 | .is_mpls = sr->flag_m, | |
1121 | .has_attribs = sr->flag_c, | |
1122 | .sid = sid, | |
1123 | .has_nai = !sr->flag_f, | |
1124 | .nai = {.type = sr->nai_type}}; | |
1125 | ||
1126 | if (!sr->flag_f) { | |
1127 | assert(sr->nai_list != NULL); | |
1128 | double_linked_list_node *n = sr->nai_list->head; | |
1129 | assert(n != NULL); | |
1130 | assert(n->data != NULL); | |
1131 | switch (sr->nai_type) { | |
1132 | case PCEP_SR_SUBOBJ_NAI_IPV4_NODE: | |
1133 | hop->nai.local_addr.ipa_type = IPADDR_V4; | |
1134 | memcpy(&hop->nai.local_addr.ipaddr_v4, n->data, | |
1135 | sizeof(struct in_addr)); | |
1136 | break; | |
1137 | case PCEP_SR_SUBOBJ_NAI_IPV6_NODE: | |
1138 | hop->nai.local_addr.ipa_type = IPADDR_V6; | |
1139 | memcpy(&hop->nai.local_addr.ipaddr_v6, n->data, | |
1140 | sizeof(struct in6_addr)); | |
1141 | break; | |
1142 | case PCEP_SR_SUBOBJ_NAI_IPV4_ADJACENCY: | |
1143 | hop->nai.local_addr.ipa_type = IPADDR_V4; | |
1144 | memcpy(&hop->nai.local_addr.ipaddr_v4, n->data, | |
1145 | sizeof(struct in_addr)); | |
1146 | n = n->next_node; | |
1147 | assert(n != NULL); | |
1148 | assert(n->data != NULL); | |
1149 | hop->nai.remote_addr.ipa_type = IPADDR_V4; | |
1150 | memcpy(&hop->nai.remote_addr.ipaddr_v4, n->data, | |
1151 | sizeof(struct in_addr)); | |
1152 | break; | |
1153 | case PCEP_SR_SUBOBJ_NAI_IPV6_ADJACENCY: | |
1154 | hop->nai.local_addr.ipa_type = IPADDR_V6; | |
1155 | memcpy(&hop->nai.local_addr.ipaddr_v6, n->data, | |
1156 | sizeof(struct in6_addr)); | |
1157 | n = n->next_node; | |
1158 | assert(n != NULL); | |
1159 | assert(n->data != NULL); | |
1160 | hop->nai.remote_addr.ipa_type = IPADDR_V6; | |
1161 | memcpy(&hop->nai.remote_addr.ipaddr_v6, n->data, | |
1162 | sizeof(struct in6_addr)); | |
1163 | break; | |
1164 | case PCEP_SR_SUBOBJ_NAI_UNNUMBERED_IPV4_ADJACENCY: | |
1165 | hop->nai.local_addr.ipa_type = IPADDR_V4; | |
1166 | memcpy(&hop->nai.local_addr.ipaddr_v4, n->data, | |
1167 | sizeof(struct in_addr)); | |
1168 | n = n->next_node; | |
1169 | assert(n != NULL); | |
1170 | assert(n->data != NULL); | |
1171 | hop->nai.local_iface = *(uint32_t *)n->data; | |
1172 | n = n->next_node; | |
1173 | assert(n != NULL); | |
1174 | assert(n->data != NULL); | |
1175 | hop->nai.remote_addr.ipa_type = IPADDR_V4; | |
1176 | memcpy(&hop->nai.remote_addr.ipaddr_v4, n->data, | |
1177 | sizeof(struct in_addr)); | |
1178 | n = n->next_node; | |
1179 | assert(n != NULL); | |
1180 | assert(n->data != NULL); | |
1181 | hop->nai.remote_iface = *(uint32_t *)n->data; | |
1182 | break; | |
1183 | default: | |
1184 | hop->has_nai = false; | |
1185 | flog_warn(EC_PATH_PCEP_UNEXPECTED_SR_NAI, | |
1186 | "Unexpected SR segment NAI type %s (%u)", | |
1187 | pcep_nai_type_name(sr->nai_type), | |
1188 | sr->nai_type); | |
1189 | break; | |
1190 | } | |
1191 | } | |
1192 | ||
1193 | return hop; | |
1194 | } | |
1195 | ||
1196 | struct counters_group *copy_counter_group(struct counters_group *from) | |
1197 | { | |
1198 | int size, i; | |
1199 | struct counters_group *result; | |
1200 | if (from == NULL) | |
1201 | return NULL; | |
1202 | assert(from->max_subgroups >= from->num_subgroups); | |
1203 | result = XCALLOC(MTYPE_PCEP, sizeof(*result)); | |
1204 | memcpy(result, from, sizeof(*result)); | |
1205 | size = sizeof(struct counters_subgroup *) * (from->max_subgroups + 1); | |
1206 | result->subgroups = XCALLOC(MTYPE_PCEP, size); | |
1207 | for (i = 0; i <= from->max_subgroups; i++) | |
1208 | result->subgroups[i] = | |
1209 | copy_counter_subgroup(from->subgroups[i]); | |
1210 | return result; | |
1211 | } | |
1212 | ||
1213 | struct counters_subgroup *copy_counter_subgroup(struct counters_subgroup *from) | |
1214 | { | |
1215 | int size, i; | |
1216 | struct counters_subgroup *result; | |
1217 | if (from == NULL) | |
1218 | return NULL; | |
1219 | assert(from->max_counters >= from->num_counters); | |
1220 | result = XCALLOC(MTYPE_PCEP, sizeof(*result)); | |
1221 | memcpy(result, from, sizeof(*result)); | |
1222 | size = sizeof(struct counter *) * (from->max_counters + 1); | |
1223 | result->counters = XCALLOC(MTYPE_PCEP, size); | |
1224 | for (i = 0; i <= from->max_counters; i++) | |
1225 | result->counters[i] = copy_counter(from->counters[i]); | |
1226 | return result; | |
1227 | } | |
1228 | ||
1229 | struct counter *copy_counter(struct counter *from) | |
1230 | { | |
1231 | struct counter *result; | |
1232 | if (from == NULL) | |
1233 | return NULL; | |
1234 | result = XCALLOC(MTYPE_PCEP, sizeof(*result)); | |
1235 | memcpy(result, from, sizeof(*result)); | |
1236 | return result; | |
1237 | } | |
1238 | ||
1239 | void free_counter_group(struct counters_group *group) | |
1240 | { | |
1241 | int i; | |
1242 | if (group == NULL) | |
1243 | return; | |
1244 | for (i = 0; i <= group->max_subgroups; i++) | |
1245 | free_counter_subgroup(group->subgroups[i]); | |
1246 | XFREE(MTYPE_PCEP, group->subgroups); | |
1247 | XFREE(MTYPE_PCEP, group); | |
1248 | } | |
1249 | ||
1250 | void free_counter_subgroup(struct counters_subgroup *subgroup) | |
1251 | { | |
1252 | int i; | |
1253 | if (subgroup == NULL) | |
1254 | return; | |
1255 | for (i = 0; i <= subgroup->max_counters; i++) | |
1256 | free_counter(subgroup->counters[i]); | |
1257 | XFREE(MTYPE_PCEP, subgroup->counters); | |
1258 | XFREE(MTYPE_PCEP, subgroup); | |
1259 | } | |
1260 | ||
1261 | void free_counter(struct counter *counter) | |
1262 | { | |
1263 | if (counter == NULL) | |
1264 | return; | |
1265 | XFREE(MTYPE_PCEP, counter); | |
1266 | } |